CN206059295U - A kind of chopper - Google Patents

Abstract

The utility model discloses a circuit breaker. A lock assembly or a moving contact assembly is provided with a first marking piece. The lock assembly or the moving contact assembly is located at different positions. The first marking area can cover or be far away from the observation window. Furthermore, it has the effect of visual display; compared with the prior art, the utility model cancels the display assembly, and realizes the simplification of the structure. At the same time, the action of the locking assembly or the moving contact assembly is more independent, which improves the response speed of the parts .

Description

a circuit breaker

technical field

The utility model relates to the general technical field of circuit equipment, more specifically, the utility model relates to a circuit breaker for controlling circuit switches to protect personnel or equipment.

Background technique

The circuit breaker for line protection includes two terminals connected to the line, and a disconnectable circuit is arranged between the two terminals; the disconnectable circuit includes a moving contact, a static contact, and a switch for controlling the position of the moving contact. The interlock mechanism also includes a thermally sensitive disconnected bimetal for protecting the circuit from overload and an electromagnetic disconnecting part containing a coil; the coil of the electromagnetic disconnecting part has a plunger-type iron core connected to the push rod, which is When the line is short-circuited, by opening the interlock mechanism, one or several moving contacts that are in contact with the static contacts are reset to ensure that the circuit is disconnected.

In order to ensure the visibility of the line status in the circuit breaker, most of the existing line protection circuit breakers are provided with display devices, as disclosed in patent documents such as CN103346047A, CN103337428A, and CN103681128A. The existing circuit breaker with indicating function usually includes an observation window and a movable display assembly, and the display assembly is controlled by the linkage of the operating element. However, the display device in the prior art has a complex structure and affects the action sensitivity of the interlock mechanism.

Utility model content

The utility model aims to provide a circuit breaker to solve the problem that the existing circuit breaker display device is complex in structure and affects the action performance.

The specific scheme of the utility model is as follows: a circuit breaker includes an insulating shell, and the shell includes at least one set of wiring groups and an interlock mechanism; each set of wiring sets includes static contacts, moving contacts, and static contacts. The first terminal electrically connected to the head and the second terminal electrically connected to the moving contact; the interlock mechanism acts on the moving contact so that the moving contact is between the closed position and the open position relative to the fixed static contact. It includes an operating part, a mounting shaft, a main elastic part, a moving contact assembly with a moving contact, a locking assembly and a pusher, and the locking assembly and the moving contact assembly are configured In order to rotate around the installation axis, the main elastic member is configured to apply a force to the movable contact assembly to move the movable contact from the closed position to the disconnected position and the contact pressure of the movable contact in the closed position. The assembly, the moving contact assembly and the first end of the push piece cooperate to form a locking structure, the second end of the push piece is hinged on the operating piece, and an observation window is provided on the housing. The moving contact assembly or lock The buckle assembly is also provided with a first indicator piece connected to the moving contact assembly or the lock assembly, and then the first indicator piece moves between the first position and the second position with the moving contact assembly or the lock assembly ; The first label sheet is provided with a first label area, and when in the first position, the first label area covers the observation window, and in the second position, the first label area is separated from the observation window to show the The working state of the wiring group inside the circuit breaker.

Further, the first marking sheet is also provided with a second marking area. When the first marking sheet is in the second position, the second marking area covers the observation window. The first and second marking areas adopt different visual mark to show the working status of the wiring group in the circuit breaker.

Further, the casing is also provided with a second labeling sheet and a second labeling area, the second labeling sheet is located below the observation window and has a certain distance between the viewing window and the viewing window to prevent To avoid the position of the first label sheet, and when the first label area of the first label sheet is in the first position, the first label area blocks the second label sheet, when the first label The first marked area of the sheet is at the second position, and the second marked area of the second marked area is exposed to the observation window; the first and second marked areas adopt different visual marks.

Preferably, the first and second marking areas use different colors as visual markings.

More preferably, the first and second marking areas use different fluorescent colors as visual markings.

Further, the specific manner in which the locking assembly and the moving contact assembly are configured to rotate around the installation shaft is: the locking assembly and the moving contact assembly are respectively sleeved on the installation shaft and can rotate around the installation shaft.

Further, the observation window and the operating member are located on the same side of the casing.

Further, the operating member is pivotally mounted on the casing.

In the circuit breaker of the present utility model, the first marking piece is arranged on the lock assembly or the moving contact assembly. When the lock assembly or the moving contact assembly is located at different positions, the first marking area can cover or be far away from the observation window, and then the To achieve the effect of visual display; compared with the prior art, the utility model cancels the display assembly and realizes the simplification of the structure. At the same time, the action of the locking assembly or the moving contact assembly is more independent, which improves the response speed of the parts.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is a front view after one side of the housing of the embodiment of the present invention is removed;

Fig. 3 is an exploded view of the interlock mechanism of the embodiment of the utility model;

Fig. 4 is the three-dimensional structure schematic diagram of the utility model embodiment;

Fig. 5 is an exploded schematic view of some parts in Fig. 4 .

detailed description

In order to further illustrate various embodiments, the utility model provides accompanying drawings. These drawings are part of the disclosure content of the present invention, which are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementations and advantages of the present utility model. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

The utility model is further described now in conjunction with accompanying drawing and specific embodiment.

Referring to Fig. 1, this embodiment is a circuit breaker. Like the existing circuit breaker, it includes a casing 6 usually made of plastic, and the casing 6 is composed of two half-shell structures snapped and fixed. (For clarity, a half-shell structure is removed in the figure), the housing 6 is installed with a first terminal 63, a magnetic assembly 631, a static contact 632, an interlock mechanism, and a second terminal 64; The terminal 63, the magnetic assembly 631 and the static contact 632 are electrically connected in series in sequence, while the second terminal 64 is electrically connected to the moving contact 30 of the interlock mechanism through a conductive copper sheet and a soft connection copper wire to form a Control wiring group.

The housing 6 is also installed with an operating member 62. In this embodiment, the operating member 62 is a knob pivotally connected to the housing 6, and the second end of the interlock mechanism pushing member 1 is pivotally installed on the operating member 62. On, rotating the operating member 62 can control the change of the position of the pushing member 1 .

Referring to Fig. 2 to Fig. 4, the interlocking mechanism of this embodiment acts on the moving contact 30 and controls the position of the moving contact 30, so that the moving contact 30 is in two stable positions relative to a fixed static contact 632 The two stable positions are respectively the closing position where the moving contact 30 is in contact with the static contact 632 to make the circuit conduction, and the opening position where the moving contact 30 is away from the static contact 632 to disconnect the circuit .

The interlocking mechanism of this embodiment includes a mounting shaft 61 , a main elastic member 5 , a moving contact assembly 3 on which a moving contact 30 is installed, a locking assembly 2 , a pushing member 1 and a heat-sensitive bimetal 4 . The locking assembly 2 and the moving contact assembly 3 are configured to rotate around the installation shaft 61, and the main elastic member 5 is configured to apply a force to the moving contact assembly 3 to move the moving contact 30 from the closed position to the open position. The active force and the contact pressure of the movable contact 30 in the closed position, the locking assembly 2, the movable contact assembly 3 and one end of the pusher 1 cooperate to form a locking structure, and the locking state of the locking structure is released by The locking assembly 2 is realized by swinging around the axis relative to the moving contact assembly 3 . The working principle of this embodiment is the same as that of the prior art, which can also be referred to CN100386837C, and will not be repeated here.

In this preferred embodiment, the moving contact assembly 3 and the lock assembly 2 adopt a laminated design, the mounting shaft 61 is directly formed in the housing 6, and the main elastic member 5 is preferably a torsion spring, the torsion spring Sleeved on the installation shaft 61, the movable contact assembly 3 and the lock assembly 2 are respectively provided with pivot holes that cooperate with the installation shaft 61, and are respectively sleeved on the installation shaft 61 through the pivot holes. The assembly 3 and the locking assembly 2 are substantially sheet-shaped, and can pivot around the installation shaft 61 independently of each other, thereby realizing a stacked design of the interlocking mechanism. In this embodiment, the main elastic member 5, the movable contact assembly 3 equipped with the movable contact 30, and the lock assembly 2 are sequentially sleeved on the installation shaft 61, and the first end of the pusher 1 can be clamped on the lock assembly. 2 and the moving contact assembly 3, each assembly that realizes the interlock mechanism is stacked and assembled in the housing 6.

1 to 5, the housing 6 is provided with an observation window 65, which is located on the same side of the housing as the operating member 62; the lock assembly 2 is integrally formed with a second An indicator piece 21, because the lock assembly 2 can rotate between two stable positions around the installation shaft 61, and then drive the first indicator piece 21 to move between the first position and the second position; the first position and the second position The second position is different according to the structural forms of different interlocking mechanisms, such as this embodiment is different from CN100386837C; There are two action positions for switching, and these two positions are the first position and the second position. In this embodiment, the upper surface of the first marking sheet 21 is all set in red as the first marking area, and the first position of the first marking sheet 21 is the position where the first marking sheet 21 completely covers the observation window 65, corresponding to Yes, the second position of the first identification sheet 21 is the position where the first identification area of the first identification sheet 21 is completely separated from the observation window 65 . In this way, the user can know the different states of the circuit breaker by observing whether the first identification area (red) of the first identification sheet 21 appears through the observation window 65 .

Preferably in this embodiment, as can be seen from FIG. 5 , the casing 6 is also provided with a second indicator sheet 66 , which is located below the observation window 65 and is provided between the observation window 65 There is a gap of a certain distance, when the first indicator piece 21 is in the first position, to play the role of avoiding the first indicator piece 21, and then make the first identification area of the first indicator piece 21 move into the second Between the indicator sheet 66 and the observation window 65 and completely cover the second indicator sheet 66; in this embodiment, the upper surface of the second indicator sheet 66 is provided with a second logo area, which is set to green, when The first indicator sheet 21 is in the second position, and the second indicator sheet 66 faces the cover observation window 65, and the first identification area of the first indicator sheet 21 is completely separated from the observation window 65, so that only the second identification sheet 66 of the second indicator sheet 66 The identification area is exposed under the observation window 65 to display another working state of the circuit inside the circuit breaker. In this way, the user can observe the first identification area (red) of the first identification sheet 21 through the observation window 65, or observe the second identification area (green) of the second identification sheet 66, and more clearly Different states of the circuit breaker can be known.

The interlocking mechanism of this embodiment is preferably provided with an installation shaft 61, on which the movable contact assembly 3 and the lock assembly 2 are respectively sleeved and pivotable, so as to realize the layered design of the interlocking mechanism; In this embodiment, the first indicator piece 21 is a rectangular thin piece formed on the lock assembly 2, and the rectangular thin piece extends axially along the installation shaft 61; and the second indicator piece 66 is an arc-shaped wall surrounding the installation shaft 61; The first identification piece 21 and the second identification piece 66 are movable display structures. The display structure in this embodiment is set on the installation shaft 61 by the lock assembly 2 and the movable contact assembly 3. The first identification piece 21 is realized by rotating around the installation shaft 61 , that is, the display structure is based on a layered design in which the locking assembly 2 and the moving contact assembly 3 are sleeved on the installation shaft 61 .

Those skilled in the art can expect that this embodiment discloses an implementation of the utility model. In other specific embodiments: (1) The upper surface of the first marking sheet 21 can also be provided with The first and second label areas do not need to be provided with a second label sheet. The first and second label areas are set to red and green respectively. When the first label 21 pieces are respectively in the first and second positions, the first label 1. The second marking area covers the observation window respectively (the size of the observation window is designed to be able to correspond to the first and second marking areas at different positions of the first marking sheet. Compared with the observation window of the above-mentioned embodiment, it should Smaller) to show the different working states of the circuit breaker wiring group; (2) The first indicator piece 21 can also be set on the moving contact assembly 3, which can also achieve the technical effect of the utility model; (3) The visual mark of the mark can also be characters, numbers or circuit symbols, etc., which can also achieve the purpose of the utility model, or, the visual mark of the first mark area and/or the second mark area can also be sprayed with different fluorescent colors Implemented to enable nighttime indication.

Although the utility model has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that, without departing from the spirit and scope of the utility model defined by the appended claims, changes in form and details may be made. Making various changes to the utility model is within the protection scope of the utility model.

Claims (9)

1. a kind of chopper, including the housing of insulation, includes least one set wiring group, an interlocking mechanism in the housing；Connect per group Line group includes static contact, moving contact the first terminals electrically connected with static contact and second connecing of electrically connecting with moving contact Line end；The interlocking mechanism acts on moving contact, makes the relatively-stationary static contact of the moving contact in closure position and disconnects shifting between position Dynamic, which includes an operating parts, an installation axle, a main elastic component, one is provided with the moving contact component of moving contact, a latch components And an impeller, the latch components are configured to rotate around installation axle with moving contact component, and it is right that the main elastic component is configured to Moving contact component applies one makes moving contact be moved to the contact of active force and moving contact in make position for disconnecting position by closing displacement Pressure, the first end of the latch components, moving contact component and impeller cooperatively form a closing component structure, the second end of the impeller It is articulated with the operating parts, it is characterised in that：An observation window is offered on the housing, on the moving contact component or latch components also The first designation card being connected with the moving contact component or latch components, and then first designation card are provided with moving contact component Or latch components are moved between the first location and the second location；First designation card is provided with the first sign region, and at this During first position, the first sign region overlay observation window, in the second position, the first sign region departs from the observation Window, to show the working condition of the chopper internal wiring group.

2. chopper according to claim 1, it is characterised in that：The second sign region is additionally provided with first designation card, When first designation card is in the second position, the second sign region overlay observation window, the first, second sign region are adopted Different visual identifications are used, to show the working condition of the chopper internal wiring group.

3. chopper according to claim 2, it is characterised in that：Made using different colours in the first, second sign region For visual identification.

4. chopper according to claim 1, it is characterised in that：The second designation card is additionally provided with the housing and is provided with Two sign regions, second designation card is provided between certain distance positioned at the lower section of the observation window and between the observation window Gap to play a part of to keep away first designation card position, and when first designation card first sign region in the first position When, this first sign region second designation card is blocked, when first tab first sign region this second Position, the second sign region of second identified areas are exposed to observation window；First, second sign region can sighting target using difference Show.

5. chopper according to claim 4, it is characterised in that：Made using different colours in the first, second sign region For visual identification.

6. the chopper according to claim 3 or 5, it is characterised in that：The first, second sign region is using different fluorescence Color is used as visual identification.

7. chopper according to claim 1, it is characterised in that：The latch components are configured to around peace with moving contact component Dress axle rotate concrete mode be：The latch components are sheathed in installation axle respectively with moving contact component and can be turned around installation axle.

8. chopper according to claim 1, it is characterised in that：The observation window is positioned at the same of the housing with the operating parts One side.

9. chopper according to claim 1, it is characterised in that：The operating parts is pivoted and is installed on the housing.