[go: up one dir, main page]

WO2024150965A1 - Dispositif d'extinction d'arc - Google Patents

Dispositif d'extinction d'arc Download PDF

Info

Publication number
WO2024150965A1
WO2024150965A1 PCT/KR2023/021291 KR2023021291W WO2024150965A1 WO 2024150965 A1 WO2024150965 A1 WO 2024150965A1 KR 2023021291 W KR2023021291 W KR 2023021291W WO 2024150965 A1 WO2024150965 A1 WO 2024150965A1
Authority
WO
WIPO (PCT)
Prior art keywords
runner
arc
grid
guide
space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2023/021291
Other languages
English (en)
Korean (ko)
Inventor
이규호
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LS Electric Co Ltd
Original Assignee
LS Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LS Electric Co Ltd filed Critical LS Electric Co Ltd
Priority to CN202380090441.2A priority Critical patent/CN120457510A/zh
Priority to EP23916448.6A priority patent/EP4651168A1/fr
Publication of WO2024150965A1 publication Critical patent/WO2024150965A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices

Definitions

  • the present invention relates to an arc extinguishing device, and more specifically, to an arc extinguishing device having a structure capable of effectively extinguishing an arc generated during a blocking operation.
  • a circuit breaker is installed in the power system and is connected to the power source and the load respectively to enable electricity to flow.
  • the circuit breaker performs a blocking operation to block the current state between the power source and the load. Accordingly, the power source and load may not be damaged by abnormal current.
  • a circuit breaker typically includes a fixed contact point that is fixedly installed and a movable contact point that is movable.
  • the movable contact point is provided to be movable in a direction toward the fixed contact point or in a direction opposite to the fixed contact point.
  • an arc is a flow of high-temperature, high-pressure electrons. Therefore, if the arc is not discharged to the outside of the circuit breaker and remains inside the circuit breaker, there is a risk that other components of the circuit breaker may be damaged by the heat or pressure of the arc. Therefore, a process of discharging the generated arc to the outside while reducing its temperature and pressure is required, which is called the arc extinguishing process.
  • circuit breakers are generally equipped with an arc extinguishing device including a plurality of grids.
  • the heat or pressure generated from the arc can also affect the grid. If the grid is damaged by the generated heat or pressure, the arc extinguishing ability is reduced, which may reduce the operational reliability of the arc extinguishing device.
  • Korean Patent Document No. 10-1031975 discloses an arc extinguishing device for a direct current switch. Specifically, an arc extinguishing device for a direct current switch that can induce a generated arc using permanent magnets arranged to face each other with a fixed contactor and a movable contactor in between is disclosed.
  • the arc extinguishing device disclosed in the above prior literature requires a separate permanent magnet to extinguish the arc.
  • the magnetic force may weaken or the arc extinguishing ability may deteriorate if the permanent magnet is damaged by the generated arc.
  • Korean Patent Document No. 10-1986552 discloses an arc extinguishing device for a direct current air circuit breaker. Specifically, an arc extinguishing device for a direct current air circuit breaker capable of extinguishing a generated arc using an arc guide and a sealing member disposed adjacent to the end of a grid is disclosed.
  • the arc guide is disposed only in a portion adjacent to the fixed contact point. Therefore, although it is possible to partially induce the arc that started at the fixed contact point, it does not provide a way to completely extinguish the arc that extends as the movable contact point moves.
  • the prior literature does not provide a method for preventing the arc-inducing structure from being damaged by the arc.
  • the present invention is to solve the above problems, and the purpose of the present invention is to provide an arc extinguishing device with a structure that can prevent the structure for extinguishing the arc from being damaged by the generated arc.
  • Another object of the present invention is to provide an arc extinguishing device with a structure that can prevent insulation breakdown by an arc generated in other components for protecting the above components.
  • Another object of the present invention is to provide an arc extinguishing device having a structure that can effectively guide the generated arc toward the above structure.
  • Another object of the present invention is to provide an arc extinguishing device having a structure in which the combined state of the components for guiding the generated arc can be stably maintained.
  • Another object of the present invention is to provide an arc extinguishing device that can circulate the remaining arc and advance it to the outside.
  • a grid portion positioned close to the fixed contact point and the movable contact point to extinguish an arc generated when the external fixed contact point and the movable contact point are spaced apart; an arc guide coupled to the grid portion and extending in one direction to generate gas by reacting with the generated arc; and an arc runner positioned close to the grid portion and the arc guide, respectively, to guide the generated arc toward the grid portion, wherein the grid portion extends to have a predetermined height and is spaced apart along the one direction.
  • An arc extinguishing device is provided, which is located in a space formed respectively surrounded by two grids and a plurality of the first grids.
  • the arc guide includes: a guide body at least partially surrounding the first grid and the second grid; And an arc extinguishing device is formed inside the guide body and includes a guide space that at least partially accommodates the first grid and the second grid.
  • the guide body includes: a first guide body that at least partially surrounds the first grid and is formed to have a predetermined height; and a second guide body continuous with the first guide body, at least partially surrounding the second grid, and formed to have a height shorter than the predetermined height.
  • the guide space includes: a first guide space that at least partially accommodates the first grid; and a second guide space that communicates with the first guide space and at least partially accommodates the second grid, wherein the height of the first guide space is longer than the height of the second guide space.
  • a device may be provided.
  • the arc guide may be provided with an arc extinguishing device that is located in the guide space and includes a plurality of grid support members that are spaced apart from each other along the one direction and divide the guide space into a plurality of small spaces. there is.
  • the arc runner includes: a runner body disposed to face a plurality of first grids along the one direction with a plurality of second grids in between;
  • An arc extinguishing device may be provided, including a runner extension portion that is continuous with one end of the runner body and extends in a direction toward the first grid.
  • the runner extension portion includes a first runner extension portion that forms a predetermined angle with the runner body and is continuous with the runner body; a second runner extension portion forming a predetermined angle with the first runner extension portion and being continuous with the first runner extension portion; And an arc extinguishing device may be provided, including a third runner extension portion that forms a predetermined angle with the second runner extension portion and is continuous with the second runner extension portion.
  • the first runner extension extends perpendicular to the runner body
  • the second runner extension extends at an obtuse angle with the first runner extension
  • the third runner extension extends with the second runner extension.
  • An arc extinguishing device may be provided, extending at an obtuse angle, so that the third runner extension is located closer to the arc guide than the first runner extension.
  • an arc extinguishing device may be provided in which an edge of the third runner extension in the extension direction is chamfered in the width direction.
  • the arc runner may be provided with an arc extinguishing device including a runner arm that is continuous with the other end of the runner body and extends outward.
  • the runner arm is provided in plurality, the plurality of runner arms are arranged to be spaced apart from each other along the width direction of the runner body, and the arc runner is defined by being surrounded by the runner body and the plurality of runner arms, and is open.
  • An arc extinguishing device may be provided, which includes a circulation space that is formed and communicates with the outside and a space in which the plurality of grid units are located.
  • the arc extinguishing device includes a side frame that is respectively coupled to the arc runner and the arc guide, and the arc runner includes a runner coupling portion that protrudes outward from an end in the width direction and is coupled to the side frame. can be provided.
  • the runner coupling portion may include a first runner coupling portion and a second runner coupling portion that protrude outward from an end in the width direction of the runner arm. a third runner coupling portion protruding outward from an end in the width direction of the runner body; And an arc extinguishing device including a fourth runner coupling portion protruding outward from an end in the width direction of the runner extension portion.
  • the side frame may be provided with an arc extinguishing device including an arc runner coupling portion that is formed through the arc thickness direction and coupled to the runner coupling portion.
  • an arc extinguishing device may be provided in which the arc runner extends to any one of the second grids located closest to the first grid among the plurality of second grids.
  • the arc extinguishing device can prevent the component for extinguishing the arc from being damaged by the generated arc.
  • the arc extinguishing device is provided with a plurality of grid units for extinguishing the generated arc.
  • a plurality of grid units are coupled to the side frames and arranged to be spaced apart from each other.
  • the generated arc is discharged to the outside through one end of the plurality of grid parts in the height direction.
  • An arc guide is coupled to the other end of the grid portion in the height direction.
  • the arc guide is coupled to a grid arm located adjacent to a position where an arc is generated during the construction of the grid portion.
  • the arc guide at least partially surrounds the grid arm, thereby preventing the generated arc from directly contacting the grid arm.
  • the grid portion provided to extinguish the generated arc can be protected from heat or pressure generated along with the arc. Accordingly, damage to the structure for extinguishing the arc, that is, the grid portion, can be prevented.
  • the arc extinguishing device can prevent insulation breakdown by an arc generated in another configuration for protecting the above configuration.
  • the arc guide may be configured to surround a portion of the grid arm in a direction toward the arc.
  • the arc guide may surround the inside of the grid arm.
  • the arc guide includes a guide body that at least partially surrounds the grid arm and a guide space formed inside the guide body to at least partially accommodate the grid arm.
  • the guide space is provided with a plurality of grid support members spaced apart from each other along the extension direction of the guide body.
  • the plurality of grid parts accommodated in the guide space are supported by the plurality of grid support members and are prevented from shaking along the arrangement direction.
  • the plurality of grid units may each be fitted into a plurality of spaces partitioned by a grid support member. Accordingly, communication between the plurality of spaces and the space where the arc is generated may be blocked.
  • the insulation breakdown phenomenon of the grid unit, the side frame supporting the grid unit, or the arc guide protecting the grid unit due to the generated arc can be minimized.
  • the arc extinguishing device can effectively guide the generated arc toward the above configuration.
  • the arc extinguishing device includes an arc runner for guiding the arc.
  • the arc runner is arranged to face the first grid with the second grid in between.
  • the arc runner may be positioned adjacent to the movable contact at a maximum distance from the fixed contact.
  • the arc runner includes a runner body coupled to the side frame and a runner extension portion extending from the runner body toward the first grid.
  • the runner extension extends to a position where the first grid and the second grid face each other, so that the arc that has just been generated can be quickly guided by the arc runner.
  • the generated arc can be quickly guided by the arc runner and progress toward the grid portion to extinguish the arc.
  • the arc extinguishing device can stably maintain the combined state of the configuration for guiding the generated arc.
  • the arc runner includes a runner arm that is continuous with the runner body.
  • a plurality of runner coupling portions protrude on the outer side of the runner body, runner arm, and runner extension portion in the width direction.
  • a plurality of runner coupling portions are coupled to a plurality of arc runner coupling portions formed on the side frame.
  • one or more runner coupling parts may be formed to have a different shape from one or more other runner coupling parts.
  • one or more arc runner coupling parts among the plurality of arc runner coupling parts may be formed to have a different shape from another one or more arc runner coupling parts among the plurality of arc runner coupling parts.
  • the coupling state between the arc runner and the side frame can be maintained stably.
  • the arc extinguishing device can circulate the remaining arc and advance it to the outside.
  • a plurality of runner arms may be provided.
  • a plurality of runner arms may be arranged to be spaced apart from each other along the width direction of the runner body.
  • the space partially enclosed by the runner arm and runner body is defined as the circulation space.
  • the circulation space communicates the space where the arc is generated and the external space of the arc extinguishing device.
  • the generated arc may circulate inside and outside the arc extinguishing device and progress toward the grid portion. Accordingly, the amount of arc remaining inside the arc extinguishing device can be minimized.
  • FIG. 1 is a perspective view showing an arc extinguishing device according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view showing the arc extinguishing device of FIG. 1.
  • FIG. 3 is a perspective view showing a side frame provided in the arc extinguishing device of FIG. 1.
  • FIG. 4 is a perspective view showing a support frame and a cover frame provided in the arc extinguishing device of FIG. 1.
  • Figure 5 is an exploded perspective view showing the support frame and cover frame of Figure 4.
  • Fig. 6 is a plan view showing the support frame of Fig. 4;
  • FIG. 7 is a perspective view showing a grid portion provided in the arc extinguishing device of FIG. 1.
  • FIG. 8 is a side view showing the grid portion of FIG. 7.
  • FIG. 9 is a perspective view showing an arc runner provided in the arc extinguishing device of FIG. 1.
  • FIG. 10 is a side view showing the arc runner of FIG. 9.
  • FIG. 11 is a perspective view showing an arc guide provided in the arc extinguishing device of FIG. 1.
  • FIG. 12 is a side view showing the arc guide of FIG. 11.
  • FIGS. 13 and 14 are a partially cut-away perspective view (FIG. 13) and a side cross-sectional view (FIG. 14) showing the flow process of an arc formed in an arc extinguishing device according to an embodiment of the present invention.
  • communication means that one or more members are connected to each other in fluid communication.
  • the communication channel may be formed by a member such as a conduit, pipe, or piping.
  • communication may be used in the same sense as one or more members being “fluidly connected” to each other.
  • conducting means that one or more members are connected to each other to transmit current or electrical signals.
  • electricity may be formed in a wired form using a conductor member, or in a wireless form such as Bluetooth, Wi-Fi, or RFID.
  • electrification may include the meaning of “communication.”
  • fluid refers to any form of material that flows by external force and whose shape or volume can be changed.
  • the fluid may be a liquid such as water or a gas such as air.
  • an arc extinguishing device 10 according to an embodiment of the present invention is shown.
  • the arc extinguishing device 10 according to the illustrated embodiment is provided in a circuit breaker (not shown) that is connected to an external power source and load.
  • the arc extinguishing device 10 can extinguish the arc generated when the fixed contact point and the movable contact point are spaced apart from each other to the outside of the circuit breaker (not shown).
  • the arc extinguishing device 10 includes a side frame 100, a support frame 200, a cover frame 300, a grid portion 400, an arc runner 500, and an arc guide 600. do.
  • a side frame 100 a support frame 200
  • a cover frame 300 a grid portion 400
  • an arc runner 500 a arc guide 600. do.
  • each configuration of the arc extinguishing device 10 will be described in detail with reference to the attached drawings, and the arc guide 600 will be described separately.
  • the side frame 100 forms part of the outer shape of the arc extinguishing device 10.
  • the side frame 100 is combined with other components of the arc extinguishing device 10, that is, the support frame 200, the cover frame 300, the grid portion 400, the arc runner 500, and the arc guide 600.
  • the side frame 100 supports the support frame 200, the cover frame 300, the grid portion 400, the arc runner 500, and the arc guide 600.
  • the side frame 100 is coupled to the support frame 200.
  • the side frame 100 has its upper end coupled to the support frame 200.
  • the side frame 100 is coupled to the cover frame 300.
  • the side frame 100 is indirectly coupled to the cover frame 300 by the support frame 200 at its upper end.
  • the side frame 100 is coupled to the grid portion 400.
  • the inner portion of the side frame 100 is coupled to each end of the grid portion 400 in the width direction.
  • the side frame 100 is combined with the arc runner 500.
  • the rear side portion of the side frame 100 is coupled with the arc runner 500.
  • the side frame 100 is coupled to the arc guide 600.
  • the lower inner portion of the side frame 100 is coupled to the arc guide 600. Accordingly, the amount of the generated arc directly contacting the side frame 100 is minimized, thereby preventing damage to the side frame 100.
  • a plurality of side frames 100 may be provided.
  • the plurality of side frames 100 may be spaced apart from each other and combined with each component of the arc extinguishing device 10 at different positions.
  • two side frames 100 are provided, including a first side frame 100a disposed on the left side and a second side frame 100b disposed on the right side.
  • the first side frame 100a is coupled to the left portion of each component of the arc extinguishing device 10 described above.
  • the second side frame 100b is coupled to the right portion of each component of the arc extinguishing device 10 described above.
  • a grid portion 400, an arc runner 500, and an arc guide 600 are positioned between the first side frame 100a and the second side frame 100b.
  • the first side frame 100a and the second side frame 100b have different positions, but other structures and functions are the same. Accordingly, in the following common description, the first side frame 100a and the second side frame 100b are collectively referred to as “side frame 100.”
  • the side frame 100 includes a side body 110, a support frame coupling portion 120, a grid coupling portion 130, an arc runner coupling portion 140, and a side fastening hole 150. and a side space 160.
  • the side body 110 forms the body of the side frame 100.
  • the side body 110 is combined with other components of the arc extinguishing device 10.
  • the side body 110 may be of any shape that can be combined with and support other components of the arc extinguishing device 10.
  • the side body 110 is provided in a plate shape with a height in the vertical direction, a width in the front-to-back direction, and a thickness in the left-right direction.
  • a side space 160 is formed on one side of each side of the side body 110 facing the arc runner 500, on the rear lower side in the illustrated embodiment. Accordingly, sufficient space for the arc runner 500 to extend can be secured.
  • One end of the side body 110 in the height direction, in the illustrated embodiment, the upper end is coupled to the support frame 200.
  • the other side in the height direction of the side body 110 is coupled to the grid portion 400 and the arc runner 500.
  • Another end of the side body 110 in the height direction, the lower end in the illustrated embodiment, is coupled to the arc guide 600.
  • a support frame coupling portion 120, a grid coupling portion 130, an arc runner coupling portion 140, and a side fastening hole 150 are formed through the inside of the side body 110.
  • a side space 160 is formed on one side of the side body 110, that is, on the lower rear side.
  • the support frame coupling portion 120 is a portion where the side body 110 is coupled to the support frame 200.
  • the support frame coupling portion 120 is formed through the side body 110 in the thickness direction, in the left and right directions in the illustrated embodiment.
  • the support frame coupling protrusion 214 of the support frame 200 is inserted and coupled to the support frame coupling portion 120.
  • the support frame coupling portion 120 may be of any shape capable of accommodating the support frame coupling protrusion 214.
  • the support frame coupling portion 120 is a space having a rectangular cross-section in which the length in the front-to-back direction is longer than the length in the vertical direction.
  • the shape of the support frame coupling portion 120 may change depending on the shape of the support frame coupling protrusion 214.
  • the support frame coupling portion 120 is formed to penetrate the side body 110. At this time, the support frame coupling portion 120 may be located on one side of the side body 110 facing the support frame 200, close to the upper end in the illustrated embodiment.
  • a plurality of support frame coupling portions 120 may be formed.
  • the plurality of support frame coupling portions 120 may be disposed at different positions and respectively coupled to the plurality of support frame coupling protrusions 214 formed at different positions.
  • two support frame coupling portions 120 are formed and are positioned close to the front and rear ends of the upper end of the side body 110, respectively.
  • the number and arrangement method of the support frame coupling portions 120 may vary depending on the number and arrangement method of the support frame coupling protrusions 214.
  • a grid coupling portion 130 is formed on the lower side of the support frame coupling portion 120.
  • the grid coupling portion 130 is a portion where the side body 110 is coupled to the grid portion 400.
  • the grid coupling portion 130 is formed through the side body 110 in the thickness direction, in the left and right directions in the illustrated embodiment.
  • the grid coupling protrusion 450 of the grid unit 400 is inserted and coupled to the grid coupling unit 130.
  • the grid coupling portion 130 may have any shape capable of accommodating the grid coupling protrusion 450.
  • the grid coupling portion 130 is a space having a rectangular cross-section where the length in the vertical direction is longer than the length in the front-to-back direction.
  • the shape of the grid coupling portion 130 may change depending on the shape of the grid coupling protrusion 450.
  • the grid coupling portion 130 is formed through the side body 110. At this time, the grid coupling portion 130 may be located in the middle portion of the side body 110.
  • the grid coupling portion 130 may be divided into a plurality of groups. Different grid coupling protrusions 450 may be inserted and coupled to the plurality of groups of grid coupling portions 130, respectively.
  • the grid coupling portion 130 is divided into three groups including a first grid coupling portion 131, a second grid coupling portion 132, and a third grid coupling portion 133.
  • a plurality of first grid coupling parts 131, second grid coupling parts 132, and third grid coupling parts 133 may each be provided.
  • the first to third grid coupling portions 131, 132, and 133 each include nineteen through holes spaced apart from each other in the front-back direction.
  • a first grid coupling protrusion 451 is inserted and coupled to the first grid coupling portion 131.
  • the first grid coupling part 131 is located at the uppermost side among the plurality of groups of grid coupling parts 130.
  • the second grid coupling part 132 is located below the first grid coupling part 131.
  • a second grid coupling protrusion 452 is inserted and coupled to the second grid coupling portion 132.
  • the second grid coupling portion 132 is located between the first grid coupling portion 131 and the third grid coupling portion 133 along the vertical direction of the side body 110.
  • the third grid coupling part 133 is located below the second grid coupling part 132.
  • a third grid coupling protrusion 453 is inserted and coupled to the third grid coupling portion 133.
  • the third grid coupling portion 133 is located on the lower side of the second grid coupling portion 132 along the vertical direction of the side body 110. In other words, the third grid coupling portion 133 is the grid coupling portion 130. ) is located at the bottom.
  • the number, arrangement method, and shape of the above-described first to third grid coupling parts 131, 132, and 133 depend on the number of grid parts 400 and the arrangement method and shape of the grid coupling protrusions 451, 452, and 453. can be changed.
  • the arc runner coupling portion 140 is formed on the rear side in the direction in which the plurality of grid coupling portions 130 are arranged side by side.
  • the arc runner coupling portion 140 is a portion where the side body 110 is coupled to the arc runner 500.
  • the arc runner coupling portion 140 is formed through the side body 110 in the thickness direction, in the left and right directions in the illustrated embodiment.
  • the runner coupling portion 550 of the arc runner 500 is inserted and coupled to the arc runner coupling portion 140.
  • the arc runner coupling portion 140 may be of any shape capable of accommodating the runner coupling portion 550.
  • the arc runner coupling portion 140 is a space having a rectangular cross-section in which the length in the vertical direction is longer than the length in the front-to-back direction.
  • the shape of the arc runner coupling portion 140 may change depending on the shape of the runner coupling portion 550.
  • the arc runner coupling portion 140 is formed to penetrate the side body 110. At this time, the arc runner coupling portion 140 may be located close to one end in the longitudinal direction of the side body 110, or, in the illustrated embodiment, close to the rear end.
  • a plurality of arc runner coupling parts 140 may be provided.
  • the plurality of arc runner coupling parts 140 may be spaced apart from each other and be respectively coupled to the plurality of runner coupling parts 550.
  • the arc runner coupling portion 140 includes a first arc runner coupling portion 141 and a second arc runner coupling portion 142 that are spaced apart from each other along the height direction of the side body 110, that is, the vertical direction. ), a third arc runner coupling portion 143, and a fourth arc runner coupling portion 144.
  • the first arc runner coupling portion 141 is coupled to the first runner coupling portion 551, and the second arc runner coupling portion 142 is coupled to the second runner coupling portion 552. Additionally, the third arc runner coupling portion 143 is coupled to the third runner coupling portion 553, and the fourth arc runner coupling portion 144 is coupled to the fourth runner coupling portion 554.
  • the shape and arrangement structure of the first to fourth arc runner coupling parts 141, 142, 143, and 144 will be determined corresponding to the shape and arrangement structure of the first to fourth runner coupling parts 551, 552, 553, and 554. You can.
  • the first to third arc runner coupling portions 141, 142, and 143 are formed to have a rectangular cross-section extending long in the vertical direction.
  • the fourth arc runner coupling portion 144 is formed to have a rectangular cross-section that extends obliquely at a predetermined angle with the vertical direction.
  • the number and arrangement method of the arc runner coupling parts 140 may change depending on the number and arrangement method of the runner coupling parts 550.
  • a side fastening hole 150 is formed on the lower side of the grid coupling portion 130.
  • the side fastening hole 150 is a part where the side body 110 is coupled to the arc guide 600.
  • the side fastening hole 150 is formed through the side body 110 in the thickness direction, in the left and right directions in the illustrated embodiment.
  • a fastening member (not provided) is inserted into the side fastening hole 150 and penetrates the fastening hole (not given) of the arc guide 600.
  • the side fastening hole 150 may be screw-fitted with a fastening member (reference numeral not assigned).
  • threads may be formed on the inner periphery of the side fastening hole 150.
  • a plurality of side fastening holes 150 may be formed.
  • the plurality of side fastening holes 150 are arranged to be spaced apart from each other in the longitudinal direction of the side body 110, in the front-back direction in the illustrated embodiment.
  • the plurality of side fastening holes 150 may be respectively aligned and combined with a plurality of fastening holes (reference symbols not given) formed in the arc guide 600.
  • the side fastening hole 150 includes a first side fastening hole 151 and a second side fastening hole 152.
  • the first side fastening hole 151 is coupled to a fastening member (not given reference number) that couples the side body 110 and the arc guide 600.
  • the first side fastening hole 151 is located on one side in the longitudinal direction of the side body 110, close to the front end of the lower side in the illustrated embodiment.
  • the first side fastening hole 151 may be of any shape capable of being coupled through a fastening member (reference notation not given).
  • the first side fastening hole 151 has a circular cross-section and a cylindrical shape with a thickness in the left and right directions.
  • the second side fastening hole 152 is coupled to a fastening member (not given reference number) that couples the side body 110 and the arc guide 600.
  • the second side fastening hole 152 is located on the middle side of the side body 110 in the longitudinal direction, close to the middle portion of the lower side in the front-back direction in the illustrated embodiment.
  • the second side fastening hole 152 may be of any shape capable of being coupled through a fastening member (reference notation not given).
  • the second side fastening hole 152 has a circular cross-section and a cylindrical shape with a thickness in the left and right directions.
  • the number and arrangement of the second side fastening holes 152 may vary depending on the number and arrangement of fastening holes (not shown) and fastening members (not shown) of the arc guide 600.
  • the side space 160 is a space formed on one side of the side body 110. Part of the side space 160 is surrounded by the side body 110, and another part of the side space 160 is open.
  • the side space 160 is recessed on one side of the side body 110.
  • the side space 160 may be partially surrounded by the runner extension portion 530 of the arc runner 500.
  • the side space 160 may be formed to correspond to the shape of the runner extension portion 530.
  • the side space 160 is formed as a space of a polygonal pillar having a length in the front-back and up-down directions and a width in the left-right direction.
  • the shape may be determined depending on the shapes of the runner body 510 and the runner extension portion 530 of the arc runner 500.
  • the support frame 200 combines the side frame 100 and the cover frame 300.
  • a space is formed inside the support frame 200 to form a path through which the generated arc is extinguished and discharged.
  • the space of the support frame 200 may be provided with a member for filtering foreign substances mixed in the extinguished arc.
  • the support frame 200 is coupled to the side frame 100.
  • the support frame 200 includes the first and second side frames 100a and 100b. can be combined with each.
  • the left and right portions of the support frame 200 are coupled to the upper portion of the side frame 100.
  • the support frame 200 is coupled to the cover frame 300.
  • the upper portion of the support frame 200 and the space are arranged to be covered by the cover frame 300. Accordingly, arbitrary departure of the member accommodated in the space can be prevented.
  • the space may be communicated with the outside by the cover frame 300.
  • the support frame 200 includes a support body 210, a support plate 220, and a mesh plate 230.
  • the support body 210 forms the body of the support frame 200.
  • the support body 210 is a part where the support frame 200 is combined with other components of the arc extinguishing device 10. Specifically, the support body 210 is coupled to the side frame 100 and the cover frame 300.
  • a space is formed inside the support body 210.
  • a support plate 220 and a mesh plate 230 are located in the space.
  • a grid unit 400 is located below the space. The upper side of the space communicates with the outside of the cover frame 300. Accordingly, the space where the grid part 400 is accommodated and the outside of the cover frame 300 are communicated, so that the generated arc is extinguished and discharged to the outside.
  • the support body 210 is coupled to the side frame 100 and the cover frame 300 and may be of any shape capable of communicating between the internal space and the outside of the arc extinguishing device 10.
  • the support body 210 has a rectangular pillar shape with a rectangular cross-section and a height in the vertical direction. At this time, a space is formed inside the support body 210 penetrating in its height direction, that is, in the vertical direction.
  • the support body 210 includes a plate receiving portion 211, a plate support portion 212, a buffer space 213, and a support frame engaging protrusion 214.
  • the plate receiving portion 211 accommodates the support plate 220 and the mesh plate 230.
  • the plate receiving portion 211 forms part of the space formed inside the support body 210.
  • the plate receiving portion 211 forms an upper space among the internal spaces of the support body 210.
  • the plate receiving portion 211 may be formed in a shape corresponding to the shape of the support plate 220 and the mesh plate 230.
  • the plate receiving portion 211 has a rectangular cross-section with a length in the front-back direction longer than the length in the left-right direction and is formed as a square pillar-shaped space with a height in the vertical direction.
  • the support plate 220 and the mesh plate 230 are received in the plate receiving portion 211 through one side.
  • the lower side is formed open.
  • the arc generated in the grid portion 400 may proceed to the plate receiving portion 211 through the other side.
  • a plate support portion 212 is located below the plate receiving portion 211.
  • the plate support part 212 supports the support plate 220 and the mesh plate 230 accommodated in the plate receiving part 211. Additionally, the plate support portion 212 extends to surround the buffer space 213 from the outside. In other words, the plate support portion 212 makes the cross-sectional area of the buffer space 213 smaller than the cross-sectional area of the plate receiving portion 211.
  • the support plate 220 and the mesh plate 230 accommodated in the plate receiving portion 211 are supported by the plate support portion 212 and are prevented from arbitrarily entering the buffer space 213.
  • the plate support portion 212 protrudes inward from the inner peripheral surface of the support body 210.
  • the plate support portion 212 extends along the inner periphery of the support body 210.
  • the plate support part 212 may be divided into a plurality of parts.
  • the plate support portion 212 may be divided into a pair of portions disposed in the front-to-back direction and extending in the left-right direction and a pair of other portions disposed in the left-right direction and extending in the front-to-back direction.
  • the space surrounded by the plate support 212 is defined as the buffer space 213.
  • the buffer space 213 forms another part of the space formed inside the support body 210.
  • the buffer space 213 forms a lower space among the spaces inside the support body 210.
  • the buffer space 213 is located between the plate receiving part 211 and the grid part 400.
  • the buffer space 213 is formed through the support frame 200 in the height direction, in the vertical direction in the illustrated embodiment.
  • the upper side is open and communicates with the plate receiving portion 211.
  • the other side of the buffer space 213 facing the grid unit 400, in the illustrated embodiment, the lower side is open and communicates with the grid unit 400.
  • the arc extinguished while passing through the grid portion 400 may be discharged to the outside through the buffer space 213 and the plate receiving portion 211 in that order.
  • the support frame coupling protrusion 214 is a part where the support body 210 is coupled to the side body 110.
  • the support frame coupling protrusion 214 is inserted and coupled to the support frame coupling portion 120 of the side frame 100.
  • the support frame coupling protrusion 214 is located on the outer peripheral surface of the support body 210.
  • the support frame coupling protrusion 214 protrudes outward from the support body 210.
  • the support frame coupling protrusion 214 may have any shape that can be inserted into the support frame coupling portion 120.
  • the support frame coupling protrusion 214 extends in the front-to-back direction, has a width in the left-right direction, and is formed to have a height in the vertical direction.
  • the support frame coupling protrusion 214 may have a different cross-sectional area along its height direction.
  • the upper cross-sectional area of the support frame coupling protrusion 214 is formed to be larger than the lower cross-sectional area.
  • one outer surface of the support frame coupling protrusion 214 extends obliquely toward the lower interior.
  • the support frame coupling protrusion 214 can be easily inserted and coupled to the support frame coupling portion 120.
  • the support frame coupling protrusion 214 inserted into the support frame coupling portion 120 does not arbitrarily separate from the support frame coupling portion 120 without external force.
  • a plurality of support frame coupling protrusions 214 may be formed.
  • the plurality of support frame coupling protrusions 214 may be spaced apart from each other and disposed at different positions, and may be respectively coupled to the plurality of support frame coupling portions 120.
  • a pair of support frame coupling protrusions 214 are provided on each of the left and right outer surfaces of the support body 210, for a total of four pairs. At this time, each pair of support frame coupling protrusions 214 formed on the left and right outer surfaces of the support body 210 are arranged to be spaced apart from each other in the front-back direction.
  • the number and arrangement method of the support frame coupling protrusions 214 may vary depending on the number and arrangement method of the support frame coupling portions 120.
  • the support plate 220 partially communicates with the space where the grid portion 400 is located and the outside of the arc extinguishing device 10.
  • the support plate 220 supports the mesh plate 230 from the lower side.
  • the support plate 220 is accommodated in the plate receiving portion 211. At this time, the outer circumference of the support plate 220 is supported by the plate support portion 212, so the support plate 220 does not advance into the buffer space 213.
  • the support plate 220 may be formed in a shape corresponding to the cross-sectional shape of the plate receiving portion 211.
  • the support plate 220 has a rectangular plate shape, has a cross-section with a protrusion formed at one end in the extending direction and a depression formed at the other end in the extending direction, and is formed to have a thickness in the vertical direction. .
  • the support plate 220 supports the mesh plate 230 from the lower side. Due to the support plate 220, the mesh plate 230 also does not advance into the buffer space 213.
  • the support plate 220 includes a support communication hole 221 and a plate body 222.
  • the support communication hole 221 is formed through the inside of the support plate 220 to partially communicate with the space where the grid portion 400 is located and the outside of the arc extinguishing device 10.
  • the arc generated and extinguished in the grid unit 400 may sequentially pass through the support communication hole 221 and the mesh plate 230 and be discharged to the outside.
  • a plurality of support communication holes 221 may be formed.
  • the plurality of support communication holes 221 are spaced apart from each other and can communicate with the outside and the space where the grid unit 400 is located at different positions.
  • the plurality of support communication holes 221 are located biased toward the front side so as to be opposed to the arc runner 500 located at the rear side.
  • the fixed contact point and the movable contact point are located opposite to the arc runner 500.
  • the support communication hole 221 is not formed in the portion of the support plate 220 located above the fixed contact point and the movable contact point. Accordingly, the space between the support communication hole 221 and the fixed contact point and the movable contact point is partially sealed, so that the pressure of the initial arc generated can be quickly increased.
  • the plate body 222 is defined as the remaining portion of the support plate 220 in which the plate communication hole 221 is not formed. That is, the plate body 222 is configured to block communication between the space where the grid portion 400 is located and the outside of the arc extinguishing device 10.
  • part of the generated arc may flow out of the arc extinguishing device 10 through the support communication hole 221.
  • another part of the generated arc may collide with the plate body 222 and then proceed against the support plate 220.
  • a circulation space 540 is formed in the arc runner 500 to form a passage through which the other part of the returning arc can proceed toward the grid unit 400 again. Accordingly, the arc that collided with the plate body 222 is extinguished again and may flow out to the outside.
  • the mesh plate 230 is configured to filter out foreign substances remaining in the arc that is extinguished and discharged. Foreign substances remaining in the arc are prevented from being arbitrarily discharged to the outside of the arc extinguishing device 10 by the mesh plate 230. Accordingly, damage to other components of the arc extinguishing device 10 or the circuit breaker (not shown) due to foreign substances, etc. can be prevented.
  • the mesh plate 230 is accommodated in the plate receiving portion 211. At this time, the mesh plate 230 is arranged to cover the support plate 220 and is supported by the support plate 220.
  • the mesh plate 230 may be accommodated in the plate receiving portion 211 and may be provided in any shape capable of filtering out foreign substances remaining in the arc.
  • the mesh plate 230 is formed in a square plate shape to correspond to the support plate 220.
  • a plurality of mesh plates 230 may be provided.
  • the plurality of mesh plates 230 are stacked in the thickness direction, so that foreign substances remaining in the arc passing through them can be filtered, respectively.
  • six mesh plates 230 are provided and are stacked in the vertical direction. Accordingly, the arc passing through the mesh plate 230 may be filtered multiple times and discharged to the outside of the arc extinguishing device 10.
  • the mesh plate 230 located at the bottom is supported by the support plate 220.
  • the mesh plate 230 located at the uppermost side is covered by the cover frame 300.
  • the mesh plate 230 may include mesh through-holes (not shown) and mesh ribs (not shown).
  • a mesh through hole is formed through the mesh plate 230 in the thickness direction to form a passage through which an arc can pass.
  • a mesh through hole (not shown) is defined by being surrounded by a mesh rib (not shown).
  • the mesh through hole (not shown) may be of any shape capable of allowing the arc to pass through, but blocking the passage of foreign substances remaining in the arc.
  • a mesh through hole (not shown) is surrounded by a mesh rib (not shown).
  • a plurality of mesh ribs (not shown) are provided extending in the longitudinal and width directions of the mesh plate 230. At this time, mesh ribs (not shown) extending in the same direction are spaced apart from each other to form mesh through-holes (not shown) therebetween.
  • a plurality of mesh through-holes (not shown) and mesh ribs (not shown) may be formed.
  • a plurality of mesh through-holes (not shown) and a plurality of mesh ribs (not shown) may be alternately arranged along the longitudinal and width directions of the mesh plate 230.
  • a plurality of mesh through-holes (not shown) and a plurality of mesh ribs (not shown) formed in each of the plurality of mesh plates 230 to be stacked alternately along the stacking direction, in the vertical direction in the illustrated embodiment. can be placed.
  • the arc that passes through the mesh through-hole (not shown) formed in one mesh plate 230 can proceed in the horizontal direction and then pass through the mesh through-hole (not shown) formed in the other mesh plate 230. there is. Accordingly, the filtering effect of foreign substances remaining in the arc can be improved.
  • the cover frame 300 covers the support frame 200 and is coupled to the support frame 200.
  • the cover frame 300 supports the support plate 220 and the mesh plate 230 provided on the support frame 200 from the upper side. Even if a blocking operation is performed and pressure is generated, the cover frame 300 can prevent the support plate 220 and the mesh plate 230 from being randomly separated.
  • the cover frame 300 is coupled to the support frame 200.
  • a plurality of through holes i.e., cover through holes 320, which will be described later
  • the internal space of the support body 210 i.e., the plate receiving portion 211 and the buffer space 213 are formed inside the cover frame 300.
  • the arc extinguished while passing through the grid portion 400 may be discharged to the outside through the support frame 200 and the cover frame 300 in that order.
  • the cover frame 300 includes a cover body 310, a cover through hole 320, and a cover rib 330.
  • the cover body 310 forms the body of the cover frame 300.
  • the cover body 310 is formed in a shape corresponding to the support body 210, covers the space formed inside the support body 210, and can be coupled to the support body 210.
  • the cover body 310 has a polygonal cross-section where the length in the front-to-back direction is longer than the length in the left-right direction and is formed to have a thickness in the vertical direction.
  • a cover through hole 320 and a cover rib 330 are provided inside the cover body 310.
  • the cover through-hole 320 is formed through the inside of the cover body 310 to communicate with the interior space of the support body 210 and the outside.
  • the arc that has passed through the support plate 220 and the mesh plate 230 accommodated in the support body 210 may pass through the cover through hole 320 and be discharged to the outside of the arc extinguishing device 10 .
  • the cover through hole 320 is formed through the cover body 310 in the thickness direction, in the vertical direction in the illustrated embodiment.
  • One end of the cover penetration hole 320 in the penetration direction, in the illustrated embodiment, is open and communicates with the outside.
  • the other end of the cover through hole 320 in the penetration direction, in the illustrated embodiment, is open and communicates with the internal space of the support body 210.
  • the cover through-hole 320 is surrounded by the cover rib 330.
  • the cover rib 330 extends in the longitudinal and width directions of the cover body 310, in the front-back direction and the left-right direction in the illustrated embodiment, and surrounds the cover rib 330 in the horizontal direction.
  • the cover through-hole 320 may be of any shape capable of communicating between the internal space of the support body 210 and the outside of the arc extinguishing device 10.
  • the cover through-hole 320 is formed as a rectangular plate-shaped space with a rectangular cross-section and a thickness in the vertical direction.
  • a plurality of cover through-holes 320 and cover ribs 330 may each be provided.
  • a plurality of cover through-holes 320 and a plurality of cover ribs 330 may be alternately arranged along the longitudinal and width directions of the cover body 310.
  • cover through-holes 320 are formed in the front-to-back direction and three are formed in the left-right direction, making a total of twelve cover holes 320.
  • the cover ribs 330 extend between cover through-holes 320 arranged close to each other.
  • the grid unit 400 extinguishes an arc formed when the fixed contact point and the movable contact point are spaced apart while current is applied.
  • the generated arc is cooled, extended, moved, divided, and discharged to the outside of the arc extinguishing device 10 along the grid portion 400. Therefore, it can be said that the grid unit 400 substantially performs the function of extinguishing the arc.
  • the grid portion 400 is coupled to the side frame 100. Each end of the grid portion 400 in the width direction is supported by a pair of side frames 100a and 100b.
  • the grid portion 400 is partially accommodated in the support frame 200.
  • the upper side of the grid portion 400 is partially accommodated in the buffer space 213 of the support frame 200.
  • the grid unit 400 is located close to the arc runner 500.
  • the generated arc may flow toward the grid unit 400 by the arc runner 500.
  • the grid portion 400 is coupled to the arc guide 600.
  • the arc generated by the arc guide 600 is provided with sufficient energy so that it can be extended, divided, and extinguished in the space formed between the plurality of grid units 400.
  • a plurality of grid units 400 may be provided.
  • the plurality of grid units 400 may be arranged side by side and spaced apart from each other in the direction of movement of the movable contact point, in the front-to-back direction in the illustrated embodiment.
  • the generated arc passes through each space formed between the plurality of grid units 400 and can be split, cooled, and extinguished.
  • the plurality of grid units 400 may be divided into a plurality of groups according to their shapes.
  • a plurality of groups of grid units 400 may be arranged to be spaced apart from each other in the above-described direction, that is, the front-back direction.
  • the grid unit 400 may be divided into two groups including a first grid 400a and a second grid 400b.
  • the first grid 400a is located at one end in the direction in which the plurality of grid units 400 are arranged side by side, or at the front end in the illustrated embodiment.
  • the first grid 400a is disposed closest to the fixed contact point.
  • the second grid 400b is located on the rear side of the first grid 400b. At this time, the second grids 400b are arranged alternately in the direction in which the plurality of grid units 400 are arranged side by side, in the illustrated embodiment, from the front side to the rear side.
  • the first grid 400a constitutes a portion of the front side of the plurality of grid portions 400
  • the second grid 400b constitutes the remaining portion of the rear side of the plurality of grid portions 400.
  • the first grid 400a consists of eight (or nine) grids located on the front side
  • the second grid 400b consists of ten grids located on the rear side of the first grid 400a. It is composed.
  • the practical benefit of distinguishing the first grid 400a and the second grid 400b lies in their height, that is, the difference in length in the vertical direction in the illustrated embodiment.
  • the first height H1 which is the height of the first grid 400a
  • the second height H2 which is the height of the second grid 400b.
  • the first grid 400a extends in the vertical direction by a longer length than the second grid 400b.
  • the lower end of the second grid 400b is located biased toward the upper side compared to the lower end of the first grid 400a. do.
  • a space partially surrounded by the side frame 100 and the first grid 400a is formed below the second grid 400b.
  • the runner extension portion 530 of the arc runner 500 may be accommodated in the space. Accordingly, the arc progressing into the space may extend toward the grid portion 400 along the runner extension portion 530.
  • the first and second grids 400a and 400b differ in the height (i.e., length in the vertical direction) of the grid arm 420 described above, but have the same other structures and functions. Accordingly, in the following description, the same description will be collectively referred to as the grid unit 400.
  • the grid portion 400 includes a grid body 410, a grid arm 420, an arc induction space 430, an arc extension space 440, a grid coupling protrusion 450, and Includes frame coupling protrusions 460.
  • the grid body 410 forms the body of the grid unit 400.
  • the grid body 410 substantially performs the function of splitting, cooling, and extinguishing the arc.
  • the grid body 410 may be provided in a plate shape.
  • the grid body 410 is provided in a square plate shape where the length in the left and right directions is longer than the length in the up and down directions.
  • Grid body 410 is continuous with grid arm 420.
  • the lower side of the grid body 410 is continuous with the upper side of the grid arm 420.
  • Grid body 410 partially surrounds arc guiding space 430 and arc extension space 440. In the depicted embodiment, grid body 410 surrounds the upper side of arc induction space 430 and arc extension space 440.
  • First and second grid coupling protrusions 451 and 452 of the grid coupling protrusion 450 are provided at each end of the grid body 410 in the width direction.
  • a frame coupling protrusion 460 is located at one end in the height direction of the grid body 410, at the upper end in the illustrated embodiment.
  • Grid arm 420 is continuous with grid body 410. Grid arm 420 extends from the lower end of grid body 410 and partially surrounds arc guiding space 430 or arc extension space 440.
  • the grid arm 420 is coupled with the arc guide 600.
  • the arc guide 600 coupled to the grid arm 420 may be coupled to and supported by the side frame 100.
  • a plurality of grid arms 420 may be formed.
  • the plurality of grid arms 420 may be spaced apart from each other and respectively coupled to the grid body 410 at different positions.
  • a pair is provided, including a first grid arm 421 located on the left side and a second grid arm 422 located on the right side.
  • the first and second grid arms 421 and 422 are arranged to be spaced apart in the width direction of the grid body 410, that is, in the left and right directions. In other words, the first and second grid arms 421 and 422 are arranged to face each other with the arc induction space 430 or the arc extension space 440 interposed therebetween.
  • the pair of grid arms 420 provided in the first grid 400a may extend longer than the pair of grid arms 420 provided in the second grid 400b.
  • a third grid coupling protrusion 453 of the grid coupling protrusions 450 is formed at the outer edge of the grid arm 420.
  • the arc inducing space 430 guides the arc generated by the fixed contact point and the movable contact point being spaced apart to the grid body 410 or the space between the grid bodies 410.
  • the arc guiding space 430 is partially surrounded by the grid body 410 and the grid arm 420.
  • the upper side of the arc guiding space 430 is partially surrounded by the grid body 410, and the left and right sides of the arc guiding space 430 are partially surrounded by a pair of grid arms 420.
  • the arc induction space 430 may be arranged so that its biased position alternately changes along the direction in which the plurality of grid units 400 are arranged. That is, in the illustrated embodiment, the arc inducing space 430 of the grid unit 400 located at the frontmost side is located skewed to the right. At this time, the arc inducing space 430 of the other grid unit 400 located closest to the grid unit 400 may be located biased to the left.
  • the generated arc is alternately guided along the width direction of the grid portion 400 and may be guided into the grid body 410 or the space between the grid bodies 410. Accordingly, the process of extinguishing the generated arc can be effectively performed.
  • the arc extension space 440 is a space where a movable contact point (not shown) is moved.
  • the arc generated between the movable contact point and the fixed contact point extends along the moving movable contact point (not shown) and may be guided into the grid body 410 or the space between the grid bodies 410.
  • the arc extension space 440 is partially surrounded by the grid body 410 and the grid arm 420.
  • the upper side of the arc extension space 440 is surrounded by the grid body 410, and the width direction of the arc extension space 440, that is, the left and right sides, is surrounded by the grid arm 420.
  • the arc extension space 440 communicates with the arc induction space 430.
  • the arc extending from the arc extension space 440 may be guided to the grid body 410 or the space between the grid bodies 410 through the arc guidance space 430.
  • the grid coupling protrusion 450 is a part where the grid portion 400 is coupled to the side frame 100.
  • the grid coupling protrusion 450 is inserted and coupled to the grid coupling portion 130 formed on the side frame 100.
  • the grid coupling protrusion 450 is continuous with the grid body 410 and the grid arm 420.
  • the grid coupling protrusion 450 protrudes outward from each end in the width direction of the grid body 410 and the grid arm 420, at the left and right corners in the illustrated embodiment.
  • a plurality of grid coupling protrusions 450 may be provided.
  • the plurality of grid coupling protrusions 450 may be respectively coupled to the plurality of grid coupling portions 130.
  • the first grid coupling protrusion 451 is inserted and coupled to the first grid coupling portion 131.
  • the first grid coupling protrusion 451 is located at the uppermost side of the plurality of grid coupling protrusions 450.
  • the first grid coupling protrusion 451 protrudes outward from both edges of the grid body 410.
  • the second grid coupling protrusion 452 is inserted and coupled to the second grid coupling portion 132.
  • the second grid coupling protrusion 452 is located on the middle side of the plurality of grid coupling protrusions 450.
  • the second grid coupling protrusion 452 protrudes outward from both upper corners of the grid arm 420.
  • the third grid coupling protrusion 453 is inserted and coupled to the third grid coupling portion 133.
  • the third grid coupling protrusion 453 is located at the lowermost side of the plurality of grid coupling protrusions 450.
  • the third grid coupling protrusion 453 protrudes outward from both lower corners of the grid arm 420.
  • the number, shape, and arrangement method of the grid coupling protrusions 450 may vary depending on the number, shape, and arrangement method of the grid coupling portions 130.
  • the arc runner 500 guides the arc generated by separating the fixed contact point and the movable contact point into the arc inducing space 430.
  • the arc runner 500 is located on the downstream side of the generated arc, that is, furthest from the fixed contact point.
  • the arc runner 500 is located on the rear side of the arc extinguishing device 10 and is located close to the grid portion 400 located at the rearmost side among the plurality of grid portions 400.
  • the arc runner 500 is positioned far from the first grid 400a located on the front side and close to the second grid 400b located on the rear side. In the illustrated embodiment, arc runner 500 extends over the rear side and lower side of second grid 400b.
  • the arc runner 500 is coupled to the side frame 100. Both sides of the arc runner 500 in the width direction are supported by a pair of side frames 100a and 100b.
  • the arc runner 500 includes a runner body 510, a runner arm 520, a runner extension 530, a circulation space 540, a runner coupling portion 550, and Includes runner space 560.
  • the runner body 510 forms the body of the arc runner 500.
  • Runner body 510 is continuous with other configurations of arc runner 500.
  • the runner body 510 partially overlaps the grid portion 400 located at the rearmost side among the plurality of grid portions 400 along the front-back direction.
  • the runner body 510 is continuous with other configurations of the arc runner 500 and may be of any shape capable of guiding an arc.
  • the runner body 510 is provided in a rectangular plate shape where the length in the left and right directions is longer than the length in the vertical direction.
  • the runner body 510 may be located on the front side compared to the rear end of each corner of the side body 110. Accordingly, the runner body 510 is not exposed to the rear side of the side body 110.
  • the upper end of the runner body 510 partially surrounds the circulation space 540 with the runner arm 520.
  • the other end of the runner body 510 in the height direction, in the illustrated embodiment, the lower end, is continuous with the runner extension portion 530. Additionally, a runner coupling portion 550 is formed at each end of the runner body 510 in the longitudinal direction, that is, at the left end and the right end.
  • Runner arm 520 forms part of another configuration of arc runner 500.
  • Runner arm 520 is continuous with runner body 510.
  • the runner arm 520 extends in the height direction of the runner body 510, in the vertical direction in the illustrated embodiment.
  • One end of the runner arm 520 in the extension direction in the illustrated embodiment, the upper end may be accommodated in the buffer space 213 of the support frame 200.
  • the other end in the extension direction of the runner arm 520, in the illustrated embodiment, the lower end, is continuous with the runner body 510.
  • the runner arm 520 is coupled to the side frame 100. Specifically, the first runner coupling portion 551 and the second runner coupling portion 552 of the runner coupling portion 550 are formed to protrude at the outer edge of the runner arm 520. The first and second runner coupling parts 551 and 552 may be inserted and coupled to the first and second arc runner coupling parts 141 and 142.
  • Runner arm 520 partially surrounds circulation space 540 together with runner body 510.
  • runner arms 520 surround the circulation space 540 in the width direction, that is, on the left and right sides.
  • a plurality of runner arms 520 may be provided.
  • the plurality of runner arms 520 may each be arranged in a continuous manner with the runner body 510 and spaced apart from each other.
  • two runner arms 520 are provided, including a first runner arm 521 positioned biased to the left and a second runner arm 522 positioned biased to the right.
  • the first runner arm 521 and the second runner arm 522 are arranged to face each other with the circulation space 540 interposed therebetween.
  • the runner extension 530 may be defined as another part of the arc runner 500.
  • the runner extension portion 530 substantially performs the role of guiding the generated arc.
  • the runner extension portion 530 may extend to the lower side of the grid portion 400 and be positioned adjacent to the fixed contact point.
  • the runner extension portion 530 is continuous with the runner body 510.
  • the runner extension portion 530 extends between the runner body 510 and the lower side of the grid portion 400.
  • the front end may be located below the second grid 400b extending as much as the second height H2.
  • the second height H2 is formed shorter than the first height H1 of the first grid 400a, and the runner extension portion 530 may extend from the lower side of the second grid 400b. there is.
  • the other end of the runner extension 530 in the extension direction, in the illustrated embodiment, the rear end may be continuous with the lower end of the runner body 510.
  • Runner extension 530 is positioned opposite to runner arm 520. In other words, the runner extension 530 is disposed to face the runner arm 520 with the runner body 510 interposed therebetween. In the illustrated embodiment, the runner extension 530 is continuous with the lower end of the runner body 510 and is disposed to face the runner arm 520, which is continuous with the upper end of the runner body 510.
  • the runner extension portion 530 may be formed to correspond to the shape of the runner body 510.
  • the runner extension portion 530 is provided in a plate shape with a width in the left and right directions.
  • a fourth runner coupling portion 554 is located at each end of the runner extension portion 530 in the width direction, in the illustrated embodiment, at the left edge and the right edge.
  • the runner extension portion 530 may be divided into a plurality of parts. The plurality of parts may be continuous with each other at a predetermined angle.
  • the runner extension 530 includes a first runner extension 531, a second runner extension 532, and a third runner extension 533.
  • the first runner extension portion 531 is a portion where the runner extension portion 530 is continuous with the runner body 510.
  • the first runner extension portion 531 is continuous with the runner body 510 at a predetermined angle.
  • the predetermined angle may be a right angle.
  • the first runner extension portion 531 may extend in the horizontal direction.
  • the first runner extension 531 may be positioned at the same height as the edge surrounding the side space 160 from the upper side of the side body 110, or higher (see FIG. 14). Accordingly, the first runner extension portion 531 does not protrude to the outside of the side body 110.
  • the second runner extension 532 is continuous with the first runner extension 531 and the third runner extension 533, respectively.
  • the second runner extension portion 532 is continuous with the first runner extension portion 531 at a predetermined angle.
  • the predetermined angle may be an obtuse angle.
  • the second runner extension portion 532 may extend obliquely toward the lower side at the front and the upper side at the rear.
  • a fourth runner coupling portion 554 is located at each end in the width direction of the second runner extension portion 532, in the illustrated embodiment, at the left end and the right end.
  • One end of the second runner extension 532 in the extension direction is continuous with the third runner extension 533.
  • the other end of the second runner extension 532 in the extension direction, in the illustrated embodiment, the rear end is continuous with the first runner extension 531.
  • the third runner extension 533 is continuous with the second runner extension 532.
  • the third runner extension portion 533 is continuous with the second runner extension portion 532 at a predetermined angle.
  • the predetermined angle may be an obtuse angle.
  • the third runner extension portion 533 may extend in the horizontal direction.
  • One end of the third runner extension 533 in the extension direction, in the illustrated embodiment, the front end may be chamfered at each vertex. Accordingly, the arc induction effect of the third runner extension portion 533 may be improved.
  • the other end of the third runner extension 533 in the extension direction, in the illustrated embodiment, the rear end, is continuous with the second runner extension 532.
  • the position of the one end of the third runner extension 533 may be determined according to the moving position of the movable contact member. That is, the third runner extension portion 533 may be positioned close to the movable contact zone that is moved to the maximum so as to be opposite to the fixed contact zone.
  • the circulation space 540 forms a passage through which the remaining arc that has not flowed out after flowing into the arc extinguishing device 10 circulates and proceeds to the grid unit 400.
  • the circulation space 540 is formed inside the arc runner 500 and communicates with the arc extinguishing device 10 and the outside.
  • the circulation space 540 communicates with the inside and outside of the arc extinguishing device 10 in a direction different from the support frame 200 or the cover frame 300.
  • the support frame 200 or the cover frame 300 communicates the upper side of the arc extinguishing device 10 with the outside.
  • the circulation space 540 communicates the rear side of the arc extinguishing device 10 with the outside.
  • the circulation space 540 may be defined as a space surrounded by the runner body 510 and the runner arm 520.
  • the lower side of the circulation space 540 is surrounded by the runner body 510, and the left and right sides of the circulation space 540 are surrounded by a pair of runner arms 520.
  • the front, rear, and upper sides of the circulation space 540 are open and communicate with the outside.
  • the runner coupling portion 550 is a portion where the arc runner 500 is coupled to the side frame 100.
  • the runner coupling portion 550 is inserted and coupled to the arc runner coupling portion 140 of the side frame 100.
  • the arc runner 500 can be coupled to the side frame 100 and supported by the side frame 100.
  • the runner coupling portion 550 is continuous with the runner body 510, the runner arm 520, and the runner extension portion 530.
  • the runner coupling portion 550 protrudes outward from each end in the width direction of the runner body 510, the runner arm 520, and the runner extension portion 530, at the left end and the right end in the illustrated embodiment.
  • a plurality of runner coupling parts 550 may be provided.
  • the plurality of runner coupling portions 550 may be continuous with the runner body 510, runner arm 520, or runner extension portion 530 at different positions. Additionally, the plurality of runner coupling parts 550 may be respectively coupled to the plurality of arc runner coupling parts 140.
  • the runner coupling portion 550 includes a first runner coupling portion 551, a second runner coupling portion 552, a third runner coupling portion 553, and a fourth runner coupling portion 554. do.
  • the first runner coupling portion 551 is located at the uppermost side among the plurality of runner coupling portions 550.
  • a pair of first runner coupling portions 551 are provided at the outer edge of the runner arm 520, the left edge of the first runner arm 521 in the illustrated embodiment, and the right edge of the second runner arm 522, respectively. It is located.
  • the first runner coupling portion 551 is located at one end in the extension direction of the runner arm 520, close to the upper end in the illustrated embodiment.
  • the first runner coupling portion 551 is coupled to the first arc runner coupling portion 141.
  • the second runner coupling portion 552 is located between the first runner coupling portion 551 and the third runner coupling portion 553.
  • a pair of second runner coupling portions 552 are provided and positioned at the outer corners of the runner arm 520, respectively.
  • the second runner coupling portion 552 is located close to the middle portion of the extension direction of the runner arm 520.
  • the second runner coupling portion 552 is coupled to the second arc runner coupling portion 142.
  • the third runner coupling portion 553 is located below the second runner coupling portion 552 and above the fourth runner coupling portion 554.
  • the third runner coupling portion 553 is provided as a pair and is located at the outer edge of the runner body 510, respectively at the left edge and the right edge in the illustrated embodiment.
  • the third runner coupling portion 553 is coupled to the third arc runner coupling portion 143.
  • the fourth runner coupling portion 554 is located below the third runner coupling portion 553.
  • a pair of fourth runner coupling portions 554 are provided and located at the outer edges in the width direction of the second runner extension portion 532, respectively, in the illustrated embodiment, at the left edge and the right edge.
  • the fourth runner coupling portion 554 is coupled to the fourth arc runner coupling portion 144.
  • the coupled state of the arc runner 500 and the side frame 100 is stable. can be maintained. Accordingly, random fluctuation of the runner extension portion 530 is prevented, and the generated arc can be effectively induced.
  • first to third runner coupling portions 551, 552, and 553 extend in the vertical direction. Additionally, the fourth runner coupling portion 554 extends obliquely toward the lower side at the front and the upper side at the rear. At this time, the first and second runner coupling portions 551 and 552 extend by a shorter length than the third runner coupling portion 553.
  • the shape and arrangement method of the first to fourth runner coupling parts 551, 552, 553, and 554 may be changed depending on the shape and arrangement method of the first to fourth arc runner coupling parts 141, 142, 143, and 144. You can.
  • the runner space 560 is a space defined and partially surrounded by the runner extension portion 530.
  • the runner space 560 is arranged to overlap the side space 160 in the width direction, in the left and right directions in the illustrated embodiment.
  • Runner space 560 is surrounded by runner extension 530.
  • the upper side of the runner space 560 is surrounded by the first runner extension 531 and the front side of the runner space 560 is surrounded by the second runner extension 532.
  • the other sides of the runner space 560, in the illustrated embodiment the lower and rear sides, are open.
  • the arc extinguishing device 10 includes an arc guide 600.
  • the arc guide 600 can prevent damage to other components due to heat or pressure generated along with the arc. Additionally, the arc guide 600 allows the induced arc to extend along the plurality of grid portions 400 and be cooled, divided, and extinguished.
  • the arc guide 600 is coupled to the side frame 100. Specifically, the fastening member (reference numeral not assigned) penetrates the second side fastening hole 152 and the fastening hole (reference numeral not assigned) of the arc guide 600, respectively, to connect the arc guide 600 to the side frame 100. ) and combine it with.
  • the arc guide 600 is coupled to the grid portion 400. Specifically, the grid arm 420 is partially accommodated in the guide space 620 of the arc guide 600. Accordingly, damage to the grid arm 420 due to the arc is prevented, and the induced arc flows along the grid body 410 and can be effectively extinguished.
  • a plurality of arc guides 600 may be provided.
  • the plurality of arc guides 600 may be respectively combined with the plurality of side frames 100 and the plurality of grid arms 420.
  • there are two arc guides 600 including a first arc guide 600a located on the left and a second arc guide 600b located on the right.
  • the first arc guide 600a is coupled to the first side frame 100a and the first grid arm 421.
  • the second arc guide 600b is coupled to the second side frame 100b and the second grid arm 422.
  • the first arc guide 600a and the second arc guide 600b may be formed symmetrically with respect to the vertical direction.
  • the first arc guide 600a and the second arc guide 600b have some differences in arrangement position and direction, but their structures and functions are the same. Accordingly, in the following description, the first arc guide 600a and the second arc guide 600b will be collectively referred to as the arc guide 600.
  • a guide space 620 is formed inside the first arc guide 600a, and a grid support member 630 is further provided in the second arc guide 600b.
  • a grid support member 630 is also provided in the guide space 620 of the first arc guide 600a to support the grid arm 420. It will be understood that it can be supported.
  • the arc guide 600 includes a guide body 610, a guide space 620, a grid support member 630, and a runner receiving space 640.
  • the guide body 610 forms the body of the arc guide 600.
  • the guide body 610 is a part of the arc guide 600 that is exposed to the outside.
  • the guide body 610 may be in direct contact with the generated arc.
  • the guide body 610 may be formed of any material that can generate gas through heat or pressure.
  • the guide body 610 is made of nylon, melamine, PA46, PA66, polyamide resin (polyamide, PA), methyl methacrylate (methyl methacrylate, MMA), polyoxy It can be formed of any gassing material such as methylene resin (polyoxymethylene, POM) or polybutyleneterephthalate (PBT).
  • the guide body 610 may react with the generated arc to generate gas. Accordingly, the arc is quickly extinguished by the pressure of the generated gas and can proceed to the outside of the arc extinguishing device 10.
  • the guide body 610 may be formed of any material that is resistant to arcing. In one embodiment, the guide body 610 may be formed of Bulk Molding Compound (BMC) material.
  • BMC Bulk Molding Compound
  • damage to the guide body 610 due to the generated arc can be minimized. Accordingly, damage to the arc guide 600 and the side frame 100 or grid portion 400 coupled thereto can be minimized.
  • the guide body 610 is each coupled to a plurality of grid parts 400.
  • the guide body 610 is coupled to the grid arm 420 of the plurality of grid parts 400 and covers them. Accordingly, the contact area between the grid arm 420 and the generated arc is minimized, and damage to the grid arm 420 can be prevented.
  • the guide body 610 may be formed in a shape corresponding to the arrangement method of the plurality of grid parts 400. In the illustrated embodiment, the guide body 610 extends in the front-to-back direction.
  • the guide body 610 includes a first guide body 611 and a second guide body 612.
  • the first guide body 611 forms a part of the guide body 610.
  • the first guide body 611 is coupled to either the first grid 400a or the second grid 400b of the grid unit 400.
  • the first guide body 611 forms the front side of the guide body 610.
  • the first guide body 611 is coupled to the grid arm 420 of the first grid 400a, which is located biased toward the front side.
  • the first guide body 611 may have a shape corresponding to the grid arm 420 of the first grid 400a.
  • the first guide body 611 has a triangular cross-section and has a polygonal pillar shape extending in the front-back direction.
  • a first guide space 621 among guide spaces 620 is formed inside the first guide body 611.
  • the grid arm 420 of the first grid 400a is accommodated in the first guide space 621.
  • the extension length of the first guide body 611 may be determined according to the arrangement length of the plurality of grid parts 400 included in the first grid 400a. That is, the first guide body 611 may be extended by the distance between the grid portion 400 located on the frontmost side and the grid portion 400 located on the rearmost side of the first grid 400a.
  • the height of the first guide body 611 and, in the illustrated embodiment, the length in the vertical direction may be determined to correspond to the length of the grid arm 420 of the first grid 400a. At this time, between the height of the first guide body 611 and the height of the second guide body 612, a size relationship corresponding to the size relationship between the first height H1 and the second height H2 may be formed. .
  • the third height H3, which is the height of the first guide body 611, is formed longer than the fourth height H4, which is the height of the second guide body 612. do.
  • the size relationship is between the grid arm 420 of the first grid 400a coupled with the first guide body 611 and the grid arm 420 of the second grid 400b coupled with the second guide body 612. It will be understood that it corresponds to the size relationship of height.
  • the difference between the third height H3, which is the height of the first guide body 611, and the fourth height H4, which is the height of the second guide body 612, is the first height H1 and the second height H1. It may be more than a difference in height (H2).
  • the second guide body 612 forms another part of the guide body 610.
  • the second guide body 612 is coupled to the other one of the first grid 400a and the second grid 400b of the grid unit 400.
  • the second guide body 612 forms the rear side of the guide body 610.
  • the second guide body 612 is coupled to the grid arm 420 of the second grid 400b located on the rear side.
  • the second guide body 612 may have a shape corresponding to the grid arm 420 of the second grid 400b.
  • the second guide body 612 has a triangular cross-section and has a polygonal pillar shape extending in the front-back direction.
  • a second guide space 622 among the guide spaces 620 is formed inside the second guide body 612.
  • the grid arm 420 of the second grid 400b is accommodated in the second guide space 622.
  • the extension length of the second guide body 612 may be determined according to the arrangement length of the plurality of grid parts 400 included in the second grid 400b. That is, the second guide body 612 may be extended by the distance between the grid portion 400 located on the frontmost side and the grid portion 400 located on the rearmost side among the second grids 400b.
  • the height of the second guide body 612 and, in the illustrated embodiment, the length in the vertical direction may be determined to correspond to the length of the grid arm 420 of the second grid 400b. As described above, between the height of the second guide body 612 and the height of the first guide body 611, a size relationship corresponding to the size relationship between the first height H1 and the second height H2 is formed. It can be.
  • the difference between the fourth height H4, which is the height of the second guide body 612, and the third height H3 of the first guide body 611 is the first height H1 and the second height H2. ) may be more than the difference.
  • the guide space 620 is a space formed inside the guide body 610. A portion of the guide space 620 is surrounded by the guide body 610. Another portion of the guide body 610 is formed open and can at least partially accommodate the grid arm 420 of the grid portion 400.
  • the upper side and the outer side in the width direction of the guide space 620 are open. Additionally, the front side, rear side, lower side, and inner side of the guide space 620 are surrounded by the guide body 610.
  • the grid arm 420 accommodated in the guide space 620 may be supported by the guide body 610 and the grid support member 630.
  • the guide space 620 may have a shape corresponding to the shape of the guide body 610.
  • the guide space 620 is formed as a polygonal pillar-shaped space with a triangular cross-section and a height in the front-back direction.
  • the guide space 620 may be divided into a plurality of spaces. Some of the plurality of guide spaces 620 are formed inside the first guide body 611 to accommodate the grid arm 420 of the first grid 400a. Another part of the plurality of guide spaces 620 is formed inside the second guide body 612 and can accommodate the grid arm 420 of the second grid 400b.
  • the guide space 620 includes a first guide space 621 formed in the first guide body 611 and a second guide space 622 formed in the second guide body 612. .
  • the first guide space 621 accommodates the grid arm 420 of the first grid 400a.
  • the upper and outer sides of each side of the first guide space 621 are open, so that the grid arm 420 can be inserted into or extracted from the first guide space 621 through the upper and outer sides.
  • the first guide space 621 communicates with the second guide space 622.
  • the second guide space 622 accommodates the grid arm 420 of the second grid 400b.
  • the upper and outer sides of each side of the second guide space 622 are open, so that the grid arm 420 can be inserted into or extracted from the second guide space 622 through the upper and outer sides.
  • a grid support member 630 is located in the guide space 620.
  • the grid support member 630 supports the grid arm 420 accommodated in the guide space 620.
  • the plurality of grid arms 420 are maintained spaced apart from each other by the grid support member 630 and may be coupled to the arc guide 600.
  • the grid support member 630 divides the guide space 620 into a plurality of small spaces.
  • the grid support member 630 is formed in a shape corresponding to the guide body 610.
  • the grid support member 630 has a triangular cross-section and is formed in a polygonal plate shape with a thickness in the front-to-back direction.
  • a plurality of grid support members 630 may be provided.
  • the plurality of grid support members 630 may be arranged side by side and spaced apart from each other along the extension direction of the guide body 610.
  • the plurality of grid support members 630 are arranged side by side and spaced apart from each other along the front-back direction.
  • the grid support member 630 may be positioned in the first guide space 621 and the second guide space 622, respectively. At this time, the grid support member 630 located in the first guide space 621 may be formed to have a longer height than the height of the grid support member 630 located in the second guide space 622.
  • the grid arms 420 accommodated in the first and second guide spaces 621 and 622, respectively, can be stably supported.
  • the grid arm 420 may be fitted into a plurality of spaces defined by the grid support member 630.
  • the portion of the guide space 620 that is open toward the direction in which the arc is generated i.e., the inside of the pair of grid arms 420
  • the insulation breakdown of each component of the arc extinguishing device 10, for example, the side frame 100, the grid portion 400, or the arc guide 600, can be prevented.
  • the runner accommodation space 640 is a space formed on the lower side of the guide body 610.
  • the runner accommodation space 640 accommodates the runner extension portion 530 of the arc runner 500.
  • the runner receiving space 640 is defined by being partially surrounded by the guide body 610.
  • the front side and upper side of the runner receiving space 640 are surrounded by the first guide body 611 and the second guide body 612, respectively.
  • the rear and lower sides of the runner accommodation space 640 are open so that the arc runner 500 can be accommodated.
  • the runner accommodation space 640 may be formed to have a predetermined height.
  • the height of the runner accommodation space 640 is defined as the fourth height H4.
  • the difference between the third height H3 and the fourth height H4 may be defined as the height of the second guide body 612.
  • the arc extinguishing device 10 can prevent the generated arc from proceeding to the grid arm 420 of the grid unit 400. Accordingly, the generated arc can be moved to another grid unit 400 along the grid body 410 of the grid unit 400. Accordingly, the arc can be quickly cooled, split and extinguished.
  • the arc extinguishing device 10 allows the arc that has not leaked to the outside after passing through the grid unit 400 to circulate without being stagnant and proceed back toward the grid unit 400. You can.
  • a portion of the grid unit 400 located close to the generated arc may be protected by the arc guide 600.
  • the arc guide 600 surrounds the above portion of the grid unit 400, so that the insulation breakdown phenomenon can be minimized.
  • an arc is formed extending from the front side toward the rear side.
  • the extended arc progresses into the space between the plurality of grid parts 400, is extinguished, passes through the support frame 200 and the cover frame 300, and is then discharged to the outside.
  • the runner extension portion 530 of the arc runner 500 extends so that its end is positioned adjacent to the fully moved movable contact zone. Accordingly, the arc extending along the movable contact zone can be guided toward the grid portion 400 by the arc runner 500.
  • a portion of the arc passing through the grid portion 400 collides with the plate body 222 and does not flow out to the outside, but proceeds back into the arc extinguishing device 10.
  • the returned arc may proceed back to the grid unit 400 through the circulation space 540 of the arc runner 500.
  • Arc extinguishing device 100 Side frame
  • 100a first side frame 100b: second side frame
  • Arc runner coupling portion 141 First arc runner coupling portion
  • support body 211 plate receiving portion
  • support frame coupling protrusion 220 support plate
  • 400a first grid 400b: second grid
  • first grid arm 422 second grid arm
  • Grid coupling protrusion 451 First grid coupling protrusion
  • first runner arm 522 second runner arm
  • Runner extension 531 First runner extension
  • circulation space 550 runner joint
  • first runner coupling portion 552 second runner coupling portion
  • 600a first arc guide 600b: second arc guide
  • Guide body 611 First guide body
  • first guide space 622 second guide space
  • Arc Arc H1: 1st height
  • H2 2nd height
  • H3 3rd height

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

L'invention concerne un dispositif d'extinction d'arc. Selon un aspect de la présente invention, le dispositif d'extinction d'arc peut comprendre : une unité de grille positionnée pour être proche d'un contact fixe et d'un contact mobile de façon à éteindre un arc généré lorsque le contact fixe et le contact mobile externes sont espacés l'un de l'autre ; un guide d'arc qui est couplé à l'unité de grille de façon à générer un gaz en réponse à l'arc généré, et qui s'étend dans une direction ; et un canal conducteur d'arc positionné pour être proche de chacun de l'unité de grille et du guide d'arc de telle sorte que l'arc généré est guidé vers l'unité de grille.
PCT/KR2023/021291 2023-01-12 2023-12-21 Dispositif d'extinction d'arc Ceased WO2024150965A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202380090441.2A CN120457510A (zh) 2023-01-12 2023-12-21 灭弧装置
EP23916448.6A EP4651168A1 (fr) 2023-01-12 2023-12-21 Dispositif d'extinction d'arc

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020230004533A KR20240112486A (ko) 2023-01-12 2023-01-12 아크 소호 장치
KR10-2023-0004533 2023-01-12

Publications (1)

Publication Number Publication Date
WO2024150965A1 true WO2024150965A1 (fr) 2024-07-18

Family

ID=91897143

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2023/021291 Ceased WO2024150965A1 (fr) 2023-01-12 2023-12-21 Dispositif d'extinction d'arc

Country Status (4)

Country Link
EP (1) EP4651168A1 (fr)
KR (1) KR20240112486A (fr)
CN (1) CN120457510A (fr)
WO (1) WO2024150965A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101031975B1 (ko) 2009-10-28 2011-05-09 엘에스산전 주식회사 직류 개폐기의 아크 소호 장치
KR20130133555A (ko) * 2012-05-29 2013-12-09 엘에스산전 주식회사 기중차단기의 아크소호장치
KR101986552B1 (ko) 2018-11-14 2019-06-07 엘에스산전 주식회사 직류용 기중차단기의 아크소호장치
CN210778465U (zh) * 2019-10-29 2020-06-16 上海良信电器股份有限公司 一种断路器的灭弧装置
KR20210123108A (ko) * 2020-04-02 2021-10-13 엘에스일렉트릭(주) 아크 소호 조립체 및 이를 포함하는 차단기
KR20220147380A (ko) * 2021-04-27 2022-11-03 엘에스일렉트릭(주) 아크 소호부 및 이를 포함하는 기중 차단기
CN217847860U (zh) * 2022-01-10 2022-11-18 伊顿辉能低压电器(江苏)有限公司 一种断路器灭弧室

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101031975B1 (ko) 2009-10-28 2011-05-09 엘에스산전 주식회사 직류 개폐기의 아크 소호 장치
KR20130133555A (ko) * 2012-05-29 2013-12-09 엘에스산전 주식회사 기중차단기의 아크소호장치
KR101986552B1 (ko) 2018-11-14 2019-06-07 엘에스산전 주식회사 직류용 기중차단기의 아크소호장치
CN210778465U (zh) * 2019-10-29 2020-06-16 上海良信电器股份有限公司 一种断路器的灭弧装置
KR20210123108A (ko) * 2020-04-02 2021-10-13 엘에스일렉트릭(주) 아크 소호 조립체 및 이를 포함하는 차단기
KR20220147380A (ko) * 2021-04-27 2022-11-03 엘에스일렉트릭(주) 아크 소호부 및 이를 포함하는 기중 차단기
CN217847860U (zh) * 2022-01-10 2022-11-18 伊顿辉能低压电器(江苏)有限公司 一种断路器灭弧室

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4651168A1

Also Published As

Publication number Publication date
CN120457510A (zh) 2025-08-08
KR20240112486A (ko) 2024-07-19
EP4651168A1 (fr) 2025-11-19

Similar Documents

Publication Publication Date Title
WO2021157873A1 (fr) Plaque de refroidissement et son procédé de fabrication
WO2019194326A1 (fr) Récipient de stockage de plaquettes
WO2021182788A2 (fr) Disjoncteur à air
WO2021112343A1 (fr) Unité de formation de trajet d'arc et relais à courant continu la comportant
WO2020153560A1 (fr) Dispositif d'onduleur et panneau d'onduleur le comprenant
WO2021182786A1 (fr) Unité d'extinction d'arc et disjoncteur à air la comprenant
WO2021096004A1 (fr) Dispositif de déclenchement
WO2023090792A1 (fr) Unité de formation de trajet d'arc et relais à courant continu la comprenant
WO2021182789A2 (fr) Disjoncteur à air
WO2021177676A2 (fr) Ensemble d'extinction d'arc et disjoncteur équipé dudit ensemble
WO2024150965A1 (fr) Dispositif d'extinction d'arc
WO2024186009A1 (fr) Sous-module
WO2020153559A1 (fr) Appareil onduleur et appareil de conversion de puissance comprenant celui-ci
WO2022181985A1 (fr) Interrupteur coupe-charge
WO2022181986A1 (fr) Boîte de soufflage et interrupteur de chargement la comprenant
WO2024085365A1 (fr) Dispositif d'extinction d'arc
WO2022240004A1 (fr) Interrupteur et disjoncteur à air le comprenant
WO2021075945A1 (fr) Contacteur électromagnétique susceptible d'éteindre efficacement un arc
WO2022114763A1 (fr) Ensemble couvercle et dispositif de conversion de courant le comprenant
WO2021100984A1 (fr) Ensemble barre transversale et ensemble de déclenchement le comprenant
WO2021230515A1 (fr) Unité à noyau mobile et relais à courant continu la comportant
WO2022234989A1 (fr) Unité de disjoncteur et disjoncteur à air la comprenant
WO2022240033A1 (fr) Unité de coupure de circuit et disjoncteur à air la comprenant
WO2022181980A1 (fr) Boîte de soufflage et interrupteur coupe-charge doté de ladite boîte de soufflage
WO2025244310A1 (fr) Boîtier de résistance et unité de commande de batterie le comprenant

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23916448

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202380090441.2

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 202380090441.2

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE

WWP Wipo information: published in national office

Ref document number: 2023916448

Country of ref document: EP