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WO2025150813A1 - Disjoncteur - Google Patents

Disjoncteur

Info

Publication number
WO2025150813A1
WO2025150813A1 PCT/KR2025/000230 KR2025000230W WO2025150813A1 WO 2025150813 A1 WO2025150813 A1 WO 2025150813A1 KR 2025000230 W KR2025000230 W KR 2025000230W WO 2025150813 A1 WO2025150813 A1 WO 2025150813A1
Authority
WO
WIPO (PCT)
Prior art keywords
discharge
space
fluid
blower
euro
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.)
Pending
Application number
PCT/KR2025/000230
Other languages
English (en)
Korean (ko)
Inventor
정한백
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
Publication of WO2025150813A1 publication Critical patent/WO2025150813A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/06—Housings; Casings; Bases; Mountings

Definitions

  • the present invention relates to a circuit breaker, and more specifically, to a circuit breaker having a structure capable of effectively cooling generated heat while preventing damage to a component provided for cooling.
  • a circuit breaker is a device that can allow or block current flow to the outside by the contact and separation of fixed and movable contacts.
  • the fixed and movable contacts provided in the circuit breaker are each connected to an external power source or load so that current can flow therethrough.
  • the fixed contact or the movable contact is electrically connected to an external power source or load by a terminal provided in the circuit breaker. That is, the terminal mediates the connection between the fixed contact or the movable contact and an external power source or load. While the circuit breaker electrically connects an external power source and load, heat is generated in the terminal.
  • the generated heat remains in the circuit breaker. If the heat generated in the terminal is not released, the generated heat remains in the circuit breaker. If the heat remains in the circuit breaker for a long time, there is a risk that the circuit breaker's components will be damaged by the generated heat. In particular, since the terminal is formed of a current-conducting material, it is relatively vulnerable to heat, and there is a risk that the terminal will be thermally damaged by the generated heat.
  • connection reliability between the terminal and the external power source or load may be reduced.
  • connection reliability between the terminal and the fixed or movable contact may also be reduced, resulting in a concern that the operational reliability of the circuit breaker may be reduced.
  • the blocking device disclosed in the above prior document only provides a method for cooling the heat of the arc.
  • the above prior document does not provide a method for cooling a configuration in which the blocking device is electrically connected to an external power source or load.
  • the present invention is intended to solve the above problems, and an object of the present invention is to provide a circuit breaker having a structure capable of effectively cooling a configuration that is electrically connected to the outside.
  • a circuit breaker may be provided in which the terminals are provided in plurality and spaced apart from each other along one direction, the discharge body extends along the one direction, the discharge holes are provided in plurality and spaced apart from each other along the one direction, and the plurality of discharge holes are configured to discharge the fluid to the plurality of terminals, respectively.
  • Figures 3 and 4 are perspective views showing an external frame provided in the circuit breaker of Figure 1.
  • Figure 5 is a front view showing the outer frame of Figures 3 and 4.
  • Figure 7 is a cross-sectional view taken along line A-A illustrating the outer frame of Figures 3 and 4.
  • Fig. 9 is a perspective view showing a euro member provided in the circuit breaker of Fig. 1.
  • Figure 10 is a plan view illustrating the absence of the euro in Figure 9.
  • Figure 12 is a side view illustrating the absence of the euro in Figure 9.
  • communicating means that one or more members are connected to each other in a fluidic manner.
  • the communication may be formed by members such as conduits, pipes, or tubing.
  • the communication may be used to mean that one or more members are "fluidically connected" to each other.
  • conduction means that one or more members are connected to each other so that they can transmit current or electrical signals.
  • the conduction may be formed in a wired form such as by a conductor member, or in a wireless form such as Bluetooth, Wi-Fi, RFID, etc.
  • the conduction may include the meaning of "communication.”
  • fluid means any form of material that flows due to an external force and can change shape or volume, etc.
  • the fluid may be a liquid such as water or a gas such as air.
  • the circuit breaker (10) may be provided in any form capable of connecting or blocking an external power source and load by contact and separation of a fixed contact (not shown) and a movable contact (not shown).
  • the circuit breaker (10) may be equipped with an air circuit breaker.
  • an air circuit breaker refers to a circuit breaker in which the contact and separation process of a fixed contact (not shown) and a movable contact (not shown) is performed in the air.
  • the circuit breaker (10) according to the embodiment of the present invention described below may be equipped with and utilized in any type of circuit breaker as long as its technical characteristics are maintained.
  • the circuit breaker (10) is electrically connected to an external power source (not shown) and a load (not shown), respectively. Inside the circuit breaker (10), fixed contacts (not shown) and movable contacts (not shown) are provided so as to be electrically contactable and spaced from each other.
  • an external power source (not shown) and a load (not shown) can be electrically connected to each other.
  • the external power source (not shown) and the load (not shown) can be electrically disconnected from each other.
  • the circuit breaker (10) may be configured to include a cradle and a circuit breaker body.
  • the cradle may include a configuration electrically connected to one of an external power source (not shown) and a load (not shown)
  • the circuit breaker body may include a configuration electrically connected to the other of an external power source (not shown) and a load (not shown).
  • a predetermined space is formed inside the cradle, into which the circuit breaker body can be inserted or withdrawn.
  • the circuit breaker (10) according to the embodiment of the present invention can effectively cool the configuration that is exposed to the outside of the cradle and electrically connected to the outside.
  • the circuit breaker (10) according to the embodiment of the present invention can easily change the arrangement structure of the configuration provided for cooling according to the state of the circuit breaker (10), so that damage caused by the outside can be prevented.
  • the circuit breaker (10) includes an outer frame (100), a blower member (200), and a flow path member (300).
  • the outer frame (100) constitutes the outer shape of the circuit breaker (10).
  • the outer frame (100) accommodates other components of the circuit breaker (10), namely, the blower member (200) and the flow path member (300).
  • the outer frame (100) supports the accommodated blower member (200) and the flow path member (300).
  • a space is formed inside the outer frame (100).
  • a component (not shown) corresponding to the circuit breaker body described above can be introduced or withdrawn into the space.
  • the component can be electrically connected to the outer frame (100) and conducted with electricity. That is, the outer frame (100) functions as the cradle or housing described above.
  • the space may accommodate a blower member (200) and a flow path member (300).
  • the blower member (200) and the flow path member (300) may be accommodated in a retractable manner in the space. Accordingly, when maintenance of the blower member (200) or the flow path member (300) is required, only the blower member (200) or the flow path member (300) may be withdrawn and maintenance may be performed without replacing the entire circuit breaker (10).
  • the outer frame (100) includes a frame body (110), a terminal (120), a body receiving space (130), a body supporting member (140), a blower member receiving space (150), and a flow path member receiving space (160).
  • the frame body (110) constitutes the body of the outer frame (100).
  • the frame body (110) constitutes the outer shape of the outer frame (100).
  • the frame body (110) is coupled with or supports other components of the outer frame (100). In the illustrated embodiment, the frame body (110) is coupled with and supports the terminal (120).
  • a body receiving space (130) is formed inside the frame body (110).
  • a circuit breaker body (not shown) can be received in a retractable manner in the body receiving space (130).
  • the outer frame (100) can be electrically connected by being combined with the circuit breaker body (not shown) introduced into the body receiving space (130).
  • a main body support member (140) is positioned inside the frame body (110).
  • a blower member receiving space (150) and a flow path member receiving space (160) are formed inside the frame body (110).
  • the one surface of the frame body (110) can support the blower member (200) and the flow path member (300).
  • the frame body (110) can be configured to receive a circuit breaker main body (not shown) in a retractable manner, and can be combined with other components of the external frame (100) to support them, or can be of any shape capable of receiving other components of the circuit breaker (10).
  • the frame body (110) is in the shape of a square pillar having a length in the front-back direction, a width in the left-right direction, and a height in the up-down direction.
  • one side of the length direction of the frame body (110), the front side in the illustrated embodiment, is formed open so that the circuit breaker body (not illustrated) can be introduced so as to be retractable.
  • the blower member (200) and the flow path member (300) can be introduced or withdrawn into the interior of the frame body (110) through the one side, i.e. the front side.
  • the terminal (120) is configured to be electrically connected to an external power source (not shown) or a load (not shown) of the external frame (100).
  • the terminal (120) is coupled to the frame body (110) and is at least partially exposed to the outside of the frame body (110).
  • the external power source (not shown) or load (not shown) can be electrically coupled to a portion of the terminal (120) exposed to the outside of the frame body (110).
  • the terminal (120) may be positioned at any location that is at least partially exposed on the outside of the frame body (110) and can be electrically connected to an external power source (not shown) or load (not shown). In the illustrated embodiment, the terminal (120) is located on the rear side of the frame body (110).
  • the heat generated in the terminal (120) can be discharged to the outside while the terminal (120) can be cooled.
  • the main body support member (140) movably supports the circuit breaker main body (not shown).
  • the circuit breaker main body (not shown) introduced into the main body receiving space (130) can be moved along the main body support member (140).
  • the air blower member receiving space (150) is located inside the frame body (110).
  • the air blower member receiving space (150) is defined by being at least partially surrounded by the frame body (110).
  • the blower member receiving space (150) is at least partially surrounded by the main body support member (140). In the illustrated embodiment, the right side of the blower member receiving space (150) is surrounded by the main body support member (140).
  • the air blower member receiving space (150) can have any shape that can receive the air blower member (200) in a retractable manner and be connected to the main body receiving space (130) and the flow path member receiving space (160).
  • the air blower member receiving space (150) has a rectangular cross section and is formed as a polygonal column-shaped space having a vertical height. The shape of the air blower member receiving space (150) can be changed to correspond to the shape of the air blower member (200).
  • the air blower member receiving space (150) is located on the left side of the lower side of the frame body (110).
  • the air blower member receiving space (150) may be located on the right side of the lower side of the frame body (110).
  • each longitudinal side of the flow member receiving space (160), i.e., the left and right sides, is surrounded by the left and right sides of the frame body (110).
  • One widthwise side of the flow member receiving space (160), i.e., the rear side in the illustrated embodiment, is surrounded by the rear side of the frame body (110).
  • the other widthwise side of the flow member receiving space (160), i.e., the front side in the illustrated embodiment, is partially surrounded by the main body support member (140), while the other portion is in communication with the blower member receiving space (150).
  • One side in the height direction of the euro-free receiving space (160), the lower side in the illustrated embodiment, is surrounded by the lower surface of the frame body (110).
  • the other side in the height direction of the euro-free receiving space (160), the upper side in the illustrated embodiment, is formed open and communicates with the main body receiving space (130).
  • the euro member (300) can be accommodated in the euro member accommodation space (160) through the main body accommodation space (130) whose front side is open.
  • the fluid discharged from the euro member (300) can flow toward the terminal (120) which is at least partially exposed to the main body accommodation space (130).
  • the euro member receiving space (160) can have any shape that can receive the euro member (300) in a withdrawable manner and be connected to the main body receiving space (130) and the blower member receiving space (150).
  • the euro member receiving space (160) is formed as a polygonal column-shaped space in which the length in the left-right direction is longer than the width in the front-back direction and the height in the up-down direction is greater.
  • the shape of the euro absence accommodation space (160) can be changed to correspond to the shape of the euro absence (300).
  • the blower member (200) may be directly electrically connected to an external control unit (not shown) and a power source (not shown).
  • power and control signals required for the operation of the blower member (200) may be provided from an external control unit (not shown) and a power source (not shown).
  • the blower member (200) may be provided in any form that can provide a conveying force to the fluid and guide it toward the flow path member (300).
  • the blower member (200) may be provided in the form of a suction member for sucking in the fluid.
  • the blower member (200) can suck in a fluid that is retained in the main body receiving space (130) or a fluid that is retained on the outside of the external frame (100).
  • the fluid sucked by the blower member (200) can flow toward a flow path member (300) that is connected and coupled with the blower member (200).
  • blower member (200) the flow of fluid formed by the blower member (200) is formed in a direction toward the flow path member (300) through the blower member (200).
  • the blower body (210) constitutes the outer shape of the blower member (200).
  • the blower body (210) is coupled with other components of the blower member (200) to support them.
  • a flow path coupling portion (220) and a fluid guide member (230) are coupled to the blower body (210).
  • the blower body (210) is supported by the frame body (110) and the main body support member (140).
  • the blower body (210) is combined with other components of the blower member (200) to support them, and may have any shape that can be accommodated and supported by the external frame (100).
  • the blower body (210) has a polygonal columnar shape with a rectangular cross section and a height in the vertical direction.
  • the blower body (210) is connected to the outside. That is, the fluid flowing by the fluid guide member (230) can flow into the inside of the blower body (210). In addition, the fluid flowing into the inside of the blower body (210) can flow out to the flow member (300) through the flow path connecting portion (220).
  • a flow coupling part (220) and a fluid guide member (230) are positioned on one side of the longitudinal direction of the blower body (210), in the illustrated embodiment.
  • the euro coupling (220) is connected to the blower body (210).
  • An external fluid can flow through the blower body (210) to the euro coupling (220).
  • the euro coupling (220) is connected to the fluid guide member (230).
  • the conveying force applied by the fluid guide member (230) can be provided to the euro coupling (220), the blower body (210), and the external fluid.
  • the euro joint (220) is connected to the euro member (300). Specifically, the euro joint (220) is connected to and connected with the blower member joint (311) of the euro body (310). The fluid introduced into the euro joint (220) can flow out into the inflow space (321) formed inside the blower member joint (311).
  • the euro coupling part (220) is coupled with the blower member coupling part (311) and can be positioned at any location that can communicate with the inflow space (321). In the illustrated embodiment, the euro coupling part (220) is positioned on the rear side of the blower body (210) and is positioned to face the blower member coupling part (311).
  • the fluid guide member (230) applies a conveying force to an external fluid.
  • the fluid guide member (230) may be provided in the form of a fan including a plurality of blades.
  • the fluid guide member (230) is electrically connected to an external frame (100), a circuit breaker body (not shown), an external control unit (not shown) or a power source (not shown), and can receive power and control signals.
  • the fluid guide member (230) is connected to the blower body (210) and the flow path coupling member (220), respectively.
  • the conveying force formed by the fluid guide member (230) can be applied to the blower body (210) and the flow path coupling member (220), respectively, and provided to an external fluid.
  • the flow path (300) forms a flow path through which the fluid flowed by the blower member (200) flows.
  • the fluid flowing along the flow path (300) is provided to the terminal (120) and can be utilized to cool the heat generated at the terminal (120).
  • the euro member (300) is coupled with the outer frame (100). Specifically, the euro member (300) is accommodated in the euro member accommodation space (160) and supported by the frame body (110) and the main body support member (140).
  • each longitudinal side of the euro member (300), i.e., the left and right sides, is supported by the left and right sides of the frame body (110).
  • One widthwise side of the euro member (300), i.e., the rear side in the illustrated embodiment, is supported by the rear side of the frame body (110).
  • One side in the height direction of the euro member (300), the lower side in the illustrated embodiment, is supported on the lower surface of the frame body (110).
  • the other side in the height direction of the euro member (300), the upper side in the illustrated embodiment, is connected to the main body receiving space (130).
  • the flow path member (300) is connected to and communicated with the blower member (200). Fluid introduced into the blower member (200) can flow into the flow path member (300).
  • the flow path member (300) is connected to the main body receiving space (130). Fluid flowing into the flow path member (300) can flow out into the main body receiving space (130).
  • the euro member (300) includes a euro body (310), a euro space (320), a discharge hole (330), and an exhaust hole (340).
  • the euro body (310) constitutes the body of the euro member (300).
  • the euro body (310) is a portion where the euro member (300) is connected to the outer frame (100) and the blower member (200).
  • the euro body (310) is coupled with the outer frame (100). Specifically, the euro body (310) is accommodated in the euro member accommodation space (160) and supported by the frame body (110) and the main body support member (140).
  • the euro body (310) is coupled with the blower member (200). Specifically, the euro body (310) is coupled with the euro connecting portion (220) and communicates with the blower member (200).
  • a flow space (320) is formed inside the flow body (310).
  • a discharge hole (330) and an exhaust hole (340) are formed through the flow body (310), so that the flow space (320) can be connected to the outside.
  • the euro body (310) is positioned adjacent to the terminal (120).
  • the terminal (120) may be configured to include first to third terminals (121, 122, 123) spaced apart in the width direction of the frame body (110), i.e., in the left-right direction.
  • the euro body (310) may extend along the spaced direction of the first to third terminals (121, 122, 123).
  • the euro body (310) may be of any shape that is accommodated and supported by the outer frame (100), is connected to and communicates with the blower member (200), and can be positioned adjacent to a plurality of terminals (120).
  • the euro body (310) is composed of a first portion (i.e., a portion including a blower member coupling portion (311) and a connecting body (312)) that extends in the longitudinal direction of the frame body (110), i.e., in the front-back direction, and a second portion (i.e., a portion that constitutes a discharge body (313)) that extends in the direction in which a plurality of terminals (120) are spaced, i.e., in the left-right direction.
  • a first portion i.e., a portion including a blower member coupling portion (311) and a connecting body (312)
  • a second portion i.e., a portion that constitutes a discharge body (313)
  • An inflow space (321) forming a part of a flow path space (320) is formed inside the blower member coupling part (311).
  • the inflow space (321) is communicated with the flow path coupling part (220) or the fluid guide member (230) to form a flow path through which a fluid is introduced.
  • the inflow space (321) is communicated with a flow space (322) formed inside the connecting body (312), so that the introduced fluid can be transferred to the flow space (322).
  • the cross-sectional area of the blower member joint (311) may be formed to be larger than the cross-sectional area of the connecting body (312) or the discharge body (313). Accordingly, the cross-sectional area of the inflow space (321) formed therein may also be formed to be larger than the cross-sectional area of the flow space (322) or the discharge space (323).
  • a flow space (322) constituting another part of the flow space (320) is formed inside the connecting body (312).
  • the flow space (322) is connected to the inflow space (321) and the discharge space (323), respectively, and can form a flow path through which the fluid flows.
  • the connecting body (312) may have any shape that can be connected to the blower member connecting portion (311) and the discharge body (313) and communicate with them.
  • the connecting body (312) has a polygonal columnar shape with a square cross section and a length in the front-back direction.
  • one longitudinal side of the connecting body (312), the front side in the illustrated embodiment, is coupled and communicated with the blower member coupling part (311).
  • the other longitudinal side of the connecting body (312), the rear side in the illustrated embodiment, is coupled and communicated with the discharge body (313).
  • the cross-sectional area of the connecting body (312) may be formed smaller than the cross-sectional area of the blower member connecting portion (311). Accordingly, as described above, the flow speed of the fluid flowing inside the connecting body (312) may be increased.
  • one side of the longitudinal direction of the discharge body (313), the other side, the front side on the left side in the illustrated embodiment, is connected to and communicated with the connecting body (312).
  • the shape of the cross-section of the discharge body (313) can be formed to correspond to the shape of the cross-section of the connecting body (312).
  • the cross-sectional area of the discharge body (313) can be formed to be the same as the cross-sectional area of the connecting body (312).
  • a discharge hole (330) is formed in the discharge body (313).
  • a discharge hole (330) is formed on one side of each side of the discharge body (313) facing the terminal (120), in the illustrated embodiment, on the upper side. Fluid introduced into the interior of the discharge body (313) can pass through the discharge hole (330) and be discharged toward the terminal (120).
  • edges of the ejection body (313), i.e., the rear side on the left side in the illustrated embodiment, the front side on the right side, and the rear side edge, may be formed to be rounded so as to be convex toward the outside.
  • other edges of the ejection body (313), i.e., the front side edge on the left side in the illustrated embodiment, may be formed to be rounded so as to be convex toward the inside.
  • the fluid introduced into the discharge body (313) does not remain unnecessarily in the discharge space (323) and can be discharged toward the main body receiving space (130) and the terminal (120) located therein.
  • blower member coupling portion (311), the connecting body (312), and the discharge body (313) constituting the above-described euro body (310) may be detachably coupled to each other.
  • the blower member coupling portion (311), the connecting body (312), and the discharge body (313) may all be detachably coupled.
  • the connecting body (312) and the discharge body (313) may be formed integrally, but the blower member coupling portion (311) may be detachably coupled with the connecting body (312) and the discharge body (313) coupled thereto.
  • the euro member (300) can be withdrawn from the euro member receiving space (160) in a manner in which one or more of the members that are detachably coupled to each other are separated and first withdrawn, and then the remaining configurations are sequentially withdrawn. It will be understood that the installation process of the euro member (300) can be performed in reverse.
  • the flow path space (320) is a space formed inside the flow path body (310).
  • the flow path space (320) is connected to the blower member (200) and constitutes a space in which a fluid flowing by the blower member (200) flows.
  • the flow path space (320) is at least partially surrounded by the flow path body (310) and thus random leakage of the fluid can be prevented.
  • the euro space (320) may have a shape corresponding to the shape of the euro body (310).
  • the euro space (320) may be divided into a plurality of parts corresponding to each part of the euro body (310).
  • the euro space (320) includes an inlet space (321), a flow space (322), and a discharge space (323).
  • the inflow space (321) is a space formed inside the blower member coupling part (311).
  • the inflow space (321) is a space formed inside the blower body (210), is connected to the flow path coupling part (220) or the fluid guide member (230), and constitutes a space through which fluid flows into the flow path member (300).
  • the inflow space (321) may have a shape corresponding to the shape of the euro joint (220) or the blower member joint (311).
  • the inflow space (321) is formed as a polygonal prism-shaped space having a rectangular cross-section and a length in the front-back direction.
  • one side in the longitudinal direction of the inflow space (321), the front side in the illustrated embodiment, is formed open and communicates with the blower member (200).
  • the other side in the longitudinal direction of the inflow space (321), the rear side in the illustrated embodiment, is formed open and communicates with the flow space (322).
  • the flow space (322) is a space formed inside the connecting body (312).
  • the flow space (322) is connected to the inflow space (321) and the discharge space (323), respectively.
  • the flow space (322) provides a passage for the fluid introduced into the inflow space (321) to flow out into the discharge space (323).
  • the flow space (322) may have a shape corresponding to the shape of the connecting body (312).
  • the flow space (322) is formed as a polygonal prism-shaped space having a rectangular cross-section and a length in the front-back direction.
  • the cross-sectional area of the flow space (322) can be formed smaller than the cross-sectional area of the inflow space (321).
  • one side in the longitudinal direction of the flow space (322), the front side in the illustrated embodiment, is formed open and communicates with the inflow space (321).
  • the other side in the longitudinal direction of the flow space (322), the rear side in the illustrated embodiment, is formed open and communicates with the discharge space (323).
  • the discharge space (323) may have a shape corresponding to the shape of the discharge body (313).
  • the discharge space (323) is formed as a polygonal prism-shaped space having a rectangular cross-section and a length in the left-right direction.
  • the cross-sectional area of the discharge space (323) can be formed to be equal to the cross-sectional area of the flow space (322).
  • a discharge hole (330) is formed on one side in the height direction of the discharge space (323), the upper side in the illustrated embodiment, and communicates with the main body receiving space (130).
  • the discharge hole (330) is located on one side of the discharge body (313) facing the terminal (120), in the illustrated embodiment, on the upper side. In other words, the discharge hole (330) is formed through one side of the discharge body (313) in the height direction.
  • the discharge hole (330) may be positioned at a position corresponding to the position of the terminal (120). In one embodiment, the discharge hole (330) may be positioned to overlap the terminal (120) along the height direction of the frame body (110), i.e., the up-down direction. In other words, the discharge hole (330) may be positioned at the lower side of the terminal (120).
  • the discharge hole (330) may have any shape that can form a passage through which the fluid is discharged toward the terminal (120).
  • the discharge hole (330) is formed as a space in the shape of a disk having a circular cross-section and a thickness in the vertical direction.
  • the discharge hole (330) includes a first discharge hole (331), a second discharge hole (332), and a third discharge hole (333).
  • the first discharge hole (331) is located on one side of the longitudinal direction of the discharge body (313), on the left side in the illustrated embodiment.
  • the first discharge hole (331) is located below the first terminal (121) located on the left side. The fluid discharged through the first discharge hole (331) flows toward the first terminal (121) and can cool the first terminal (121).
  • the third discharge hole (333) is located on the other side of the discharge body (313) in the longitudinal direction, on the right side in the illustrated embodiment.
  • the third discharge hole (333) is located below the third terminal (123) located on the right side.
  • the fluid discharged through the third discharge hole (333) flows toward the third terminal (123) and can cool the third terminal (123).
  • the first discharge hole (331) and the third discharge hole (333) can be arranged to face each other along the longitudinal direction of the discharge body (313), or in the left-right direction in the illustrated embodiment, with the second discharge hole (332) therebetween.
  • the exhaust hole (340) forms a passage through which a portion of the fluid flowing into the flow path space (320) flows out to the main body receiving space (130). As the exhaust hole (340) is formed, a backflow phenomenon that may occur when all the fluid flowing into the flow path space (320) flows toward the discharge hole (330) can be prevented.
  • the exhaust hole (340) is formed penetrating the discharge body (313). Specifically, the exhaust hole (340) is formed penetrating the discharge body (313). At this time, the exhaust hole (340) may be formed in a portion of the discharge body (313) where the discharge hole (330) is not formed. In the illustrated embodiment, the exhaust hole (340) is located at an end portion in the longitudinal direction of the discharge body (313), that is, at a left end or a right end.
  • the exhaust hole (340) may have any shape that can connect the discharge space (323) and the main body receiving space (130).
  • the exhaust hole (340) is formed as a polygonal column-shaped space having a height in the vertical direction.
  • the cross-sectional area of the exhaust hole (340) may be formed smaller than the cross-sectional area of the discharge hole (330). Accordingly, most of the fluid introduced into the flow path space (320) may be discharged into the main body receiving space (130) through the discharge hole (330), and the remaining portion of the introduced fluid may be discharged through the exhaust hole (340). As a result, most of the introduced fluid may be utilized to cool the terminal (120), so that the cooling efficiency of the terminal (120) may be improved.
  • the discharge space (323) extends in a different direction from the inflow space (321) or the flow space (322). Therefore, the fluid flowing along the inflow space (321) and the flow space (322) inevitably collides with the inner surface of the discharge body (313) surrounding the discharge space (323).
  • the first exhaust hole (341) may be formed to penetrate in the direction in which the fluid flows into the discharge space (323), that is, along the front-back direction in the illustrated embodiment.
  • the second exhaust hole (342) may be formed to penetrate along the direction in which the fluid flows in the discharge space (323) or along the extension direction of the discharge space (323), that is, along the left-right direction in the illustrated embodiment.
  • a plurality of second exhaust holes (342) may be formed.
  • a plurality of second exhaust holes (342) may respectively connect the discharge space (323) and the main body receiving space (130) at different locations.
  • a pair of second exhaust holes (342) are provided and are spaced apart in the front-back direction along the outer periphery of the right end of the discharge body (313) formed in a round shape.
  • FIGS. 14 to 17 the flow process of a fluid formed inside a circuit breaker (10) according to an embodiment of the present invention is illustrated as an example.
  • blower member (200) When the blower member (200) is operated, a conveying force is applied to the fluid remaining in the outside of the outer frame (100) or the main body receiving space (130). The fluid flows toward the blower member (200) by the conveying force.
  • the blower member (200) is connected to and communicates with the flow path member (300), so that the fluid flowing into the blower member (200) is transferred to the flow path member (300).
  • the fluid first enters the inflow space (321) formed inside the blower member joining portion (311) that is coupled with the blower member (200).
  • the inflow space (321) is communicated with the flow space (322) formed inside the connecting body (312), so the fluid flows into the flow space (322) through the inflow space (321).
  • the cross-sectional area of the flow space (322) is formed smaller than the cross-sectional area of the inflow space (321), it will be understood that the flow velocity can increase as the fluid enters the flow space (322).
  • the flow space (322) is connected to the discharge space (323) formed inside the discharge body (313), and the fluid flows through the flow space (322) into the discharge space (323).
  • the fluid flowing into the discharge space (323) flows along the discharge space (323) extending in the left-right direction.
  • the first to third discharge holes (331, 332, 333) are formed in the discharge body (313) spaced apart from each other in the extending direction of the discharge space (323), i.e., in the left-right direction.
  • the fluid flowing in the discharge space (323) flows from the upstream side to the downstream side and at least a portion of the fluid is discharged through the first to third discharge holes (331, 332, 333).
  • the first to third discharge holes (331, 332, 333) are located below the first to third terminals (121, 122, 123).
  • the discharged fluid flows from the bottom to the top toward the first to third terminals (121, 122, 123) and can be discharged to the outside of the circuit breaker (10) after cooling the first to third terminals (121, 122, 123).
  • a portion of the fluid flowing downstream along the discharge space (323), that is, to the right end, can be discharged to the main body receiving space (130) through the second exhaust hole (342) formed in the discharge body (313). Accordingly, the amount of fluid flowing back to the downstream side of the discharge space (323) can be minimized.
  • FIG. 18 a process of combining and separating each component of a circuit breaker (10) according to an embodiment of the present invention is illustrated as an example.
  • the main body receiving space (130) formed in the outer frame (100) is open on one side in the longitudinal direction, that is, the front side.
  • the main body receiving space (130) is connected to the blower member receiving space (150) and the flow path member receiving space (160), respectively.
  • Circuit breaker 100 Outer frame
  • Terminal 1 Terminal 2
  • Terminal 3 130 Main body storage space
  • Body support member 150 Ventilation member accommodation space
  • Blower body 220 Euro joint
  • Fluid space 323 Discharge space
  • Discharge hole 331 First discharge hole

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

Un disjoncteur est divulgué. Un disjoncteur selon un aspect de la présente invention peut comprendre : un cadre externe formant une forme externe et possédant un espace de réception de corps formé à l'intérieur de celui-ci ; un élément de soufflage qui est logé dans le cadre externe pour pouvoir être retiré de celui-ci et qui est configuré pour aspirer un fluide restant dans l'espace de réception de corps ; et un élément de canal de fluide logé dans le cadre externe pour pouvoir être retiré de celui-ci et communiquant avec l'élément de soufflage pour recevoir le fluide, le cadre externe comprenant une borne qui est disposée de façon à être au moins partiellement exposée à l'extérieur et qui est connectée de manière conductrice à l'extérieur, l'élément de canal de fluide comprenant un corps de canal de fluide positionné sur le côté inférieur de la borne et configurant un canal de fluide dans lequel le fluide transféré se déplace, et un orifice d'évacuation formé à travers le corps de canal de fluide pour configurer un passage à travers lequel le fluide introduit est évacué vers la borne.
PCT/KR2025/000230 2024-01-10 2025-01-06 Disjoncteur Pending WO2025150813A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020240004149A KR20250109409A (ko) 2024-01-10 2024-01-10 차단기
KR10-2024-0004149 2024-01-10

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WO2025150813A1 true WO2025150813A1 (fr) 2025-07-17

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WO (1) WO2025150813A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100950129B1 (ko) * 2008-02-05 2010-03-30 엘에스산전 주식회사 진공차단기의 주회로 단자 어셈블리
US20100302715A1 (en) * 2009-05-28 2010-12-02 Abb S.P.A. Cooling Device For A Circuit Breaker And Circuit Breaker Comprising Such Device
US20140160636A1 (en) * 2012-12-12 2014-06-12 Rahul Rajvanshi Modular draw out fan module with chimney design for cooling components in low voltage switchgear
US20160156163A1 (en) * 2013-07-17 2016-06-02 Schneider Electric USA, Inc. Internal arc management and ventilation for electrical equipment
CN107799340B (zh) * 2017-11-27 2020-08-07 德力西电气有限公司 一种外置风冷装置及安装有外置风冷装置的断路器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102599372B1 (ko) 2021-04-21 2023-11-06 엘에스일렉트릭(주) 냉각 유닛을 구비한 배전반

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100950129B1 (ko) * 2008-02-05 2010-03-30 엘에스산전 주식회사 진공차단기의 주회로 단자 어셈블리
US20100302715A1 (en) * 2009-05-28 2010-12-02 Abb S.P.A. Cooling Device For A Circuit Breaker And Circuit Breaker Comprising Such Device
US20140160636A1 (en) * 2012-12-12 2014-06-12 Rahul Rajvanshi Modular draw out fan module with chimney design for cooling components in low voltage switchgear
US20160156163A1 (en) * 2013-07-17 2016-06-02 Schneider Electric USA, Inc. Internal arc management and ventilation for electrical equipment
CN107799340B (zh) * 2017-11-27 2020-08-07 德力西电气有限公司 一种外置风冷装置及安装有外置风冷装置的断路器

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