CN218769336U

CN218769336U - Base of circuit breaker

Info

Publication number: CN218769336U
Application number: CN202223439675.5U
Authority: CN
Inventors: 顾建青; 严晓辛; 唐维春
Original assignee: Changshu Switchgear Manufacturing Co Ltd
Current assignee: Changshu Switchgear Manufacturing Co Ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-03-28
Anticipated expiration: 2032-12-20

Abstract

A base of a circuit breaker belongs to the technical field of low-voltage electrical appliances. The circuit breaker include base, electrically conductive connecting plate, the base include at least one utmost point room, the line inlet side and the line outlet side both ends of every utmost point room respectively include a mounting cavity, install electrically conductive connecting plate in the mounting cavity, characteristics are: the circuit breaker further comprises at least one supporting piece, wherein the supporting piece is arranged below the conductive connecting plate on the wire inlet side and/or the wire outlet side of the base and is fixed on the base together with the conductive connecting plate. The advantages are that: the uniform wiring height in front of the board is realized, the inlet and outlet connecting boards with different sizes and structures can be installed, and the rear and plug-in connecting rows of different types of boards can be conveniently installed.

Description

Base of circuit breaker

Technical Field

The utility model belongs to the technical field of low-voltage apparatus, concretely relates to base of circuit breaker.

Background

The existing circuit breaker can achieve the current specification of the shell frame as much as possible under the same size for reducing the cost, can achieve high universality of parts and reduces the types of the parts.

Because different current specifications are realized under the same size of the shell frame, the thicknesses of the conducting bars of the main loop in the switch are different in consideration of cost factors. The larger the current, the larger the current carrying cross section of the conductive row and the thicker the thickness. Under the same base, the conductive bars with different thicknesses and different current specifications lead to different heights of the wire inlet and outlet ends of the circuit breaker; in addition, the different thicknesses of the incoming line row and the outgoing line row of the partial circuit breakers can also lead to different heights of the incoming and outgoing line ends, so that the wiring of users is inconvenient.

In view of the above-mentioned prior art, there is a need for a reasonable improvement of the base structure of the existing circuit breaker. The applicant has therefore made an advantageous design, in the context of which the solution to be described below is made.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a base of circuit breaker realizes the wiring height before the unified board, mountable not unidimensional, not isostructure advance, be qualified for the next round of competitions the connecting plate, also be convenient for install behind the board of different grade type and bayonet hookup.

The utility model discloses a task is accomplished like this, a base of circuit breaker, the circuit breaker include base, electrically conductive connecting plate, the base include at least one utmost point room, every utmost point room's incoming line side and outgoing line side both ends include an installation cavity respectively, install electrically conductive connecting plate in the installation cavity, characteristics are: the circuit breaker further comprises at least one supporting piece, wherein the supporting piece is arranged below the conductive connecting plate on the wire inlet side and/or the wire outlet side of the base and is fixed on the base together with the conductive connecting plate.

In a specific embodiment of the utility model, the electrically conductive connecting plate includes the inlet wire side connecting plate that is located the polar chamber incoming line side and is located the side connecting plate that is qualified for the next round of competitions of polar chamber outgoing line side.

In another specific embodiment of the present invention, the installation cavities of the wire inlet side and the wire outlet side of the polar chamber respectively form installation parts with the same characteristics, at least one installation hole is formed on the installation part, a connection hole is formed on the support member corresponding to the installation hole, a first threaded hole is formed on the wire inlet side connection plate corresponding to the installation hole and the connection hole, and an installation screw passes through the installation hole and the connection hole of the support member and then is connected to the first threaded hole formed on the wire inlet side connection plate, so as to realize the fixed connection of the base, the support member and the wire inlet side connection plate; the outlet side connecting plate is placed on a supporting piece on the outlet side of the circuit breaker, second threaded holes are formed in positions, corresponding to the mounting holes and the connecting holes, on the outlet side connecting plate, mounting screws penetrate through the mounting holes and the connecting holes of the supporting piece and then are connected with the second threaded holes formed in the outlet side connecting plate, and the base, the supporting piece and the outlet side connecting plate are fixedly connected.

In another specific embodiment of the present invention, the installation cavities of the wire inlet side and the wire outlet side of the electrode chamber respectively constitute a limiting portion having the same characteristic, a joint portion is provided on the support member corresponding to the limiting portion, and the support member is connected to the limiting portion of the base through the joint portion to limit the position of the support member and the base.

In another specific embodiment of the present invention, the limiting portion is a groove and/or a boss formed on the opposite surface of the mounting cavity, and the clamping portion is a boss and/or a groove clamped with the clamping portion.

In yet another specific embodiment of the present invention, the supporting member is provided with a first positioning portion, the wire inlet side connecting plate is provided with a second positioning portion corresponding to the first positioning portion, and the supporting member is matched with the wire inlet side connecting plate through the first positioning portion and the second positioning portion to position the wire inlet side connecting plate; the wire outlet side connecting plate is provided with a third positioning part corresponding to the first positioning part, and the supporting piece is matched with the wire outlet side connecting plate through the first positioning part and the third positioning part to realize positioning of the wire outlet side connecting plate.

In yet another specific embodiment of the present invention, the first positioning portion is a boss, and the second positioning portion and the third positioning portion are holes or grooves for inserting the first positioning portion.

In a more specific embodiment of the present invention, the first positioning portion is a hole or a groove, and the second positioning portion and the third positioning portion are bosses inserted into the first positioning portion.

In yet another specific embodiment of the present invention, when the circuit breaker has a rear wiring board or a plug-in wiring demand, the support member is provided with a recess for the conductive bar to pass through.

The utility model discloses owing to adopted above-mentioned structure, the beneficial effect who has: the supporting piece is additionally arranged in the base, the supporting piece can be arranged on any one side or two sides of the wire inlet side and the wire outlet side of the circuit breaker, the uniform front-board wiring height can be realized only by selecting the supporting piece pads with different thicknesses according to the different thicknesses of the conductive connecting plate above and below the conductive connecting plate, the conductive connecting plates with different sizes and different structures can be arranged, and the rear-board and plug-in type connecting rows with different types can be conveniently arranged.

Drawings

Fig. 1 is the assembly schematic diagram of the circuit breaker base, each connecting plate and the supporting piece.

Fig. 2 is an explosion diagram of the circuit breaker base, each connecting plate and the supporting member of the present invention.

Fig. 3 is the assembly structure cross-sectional view of the circuit breaker base, each connecting plate and the supporting member.

Fig. 4 is a perspective view of the supporting member of the present invention.

Fig. 5 is a schematic diagram of the circuit breaker base seen from the rear side of the present invention.

In the figure: 1. the device comprises a base, a 10-pole chamber, a 11-mounting cavity, a 111-mounting part, a 1111-mounting hole and a 112-limiting part; 20. the wire-outgoing connector comprises a conductive connecting plate, 2 parts of a wire-incoming side connecting plate, 21 parts of a second positioning part, 22 parts of a first threaded hole, 3 parts of a wire-outgoing side connecting plate, 31 parts of a third positioning part and 32 parts of a second threaded hole; 4. the support piece, 41, the connecting hole, 42, the clamping part, 43, the first positioning part, 44, the abdicating groove; 5. and (4) a conductive bar.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, but the description of the embodiments is not intended to limit the technical solutions, and any changes made in the form of the present invention rather than the essential changes should be considered as the protection scope of the present invention.

In the following description, any concept relating to the directions or orientations of up, down, left, right, front, and rear is based on the position shown in the corresponding drawings, and thus should not be construed as particularly limiting the technical solution provided by the present invention.

Please refer to fig. 1 to 5, the present invention relates to a base of a circuit breaker, wherein the circuit breaker is of a plastic shell type, comprising a base and a conductive connection plate installed in the base, the larger the current-carrying cross section of the conductive connection plate in the existing circuit breaker is, the thicker the thickness is. Under the same base, the conductive connecting plates with different current specifications and different thicknesses can cause different heights of the wire inlet and outlet ends of the circuit breaker; in addition, the different thicknesses of the incoming line row and the outgoing line row of the partial circuit breakers can also lead to different heights of the incoming and outgoing line ends, so that the wiring of users is inconvenient. On this basis, the utility model discloses an increase the support piece 4 of the different thickness that metal material or insulating material made, make it fill up between base and electrically conductive connecting plate or fill up and solve the problem that above-mentioned business turn over line end height difference on electrically conductive connecting plate upper portion.

The utility model discloses the base of circuit breaker protected is base 1 shown in figure 1, the electrically conductive connecting plate of circuit breaker is figure 1, figure 2 electrically conductive connecting plate 20, specifically including the inlet wire side connecting plate 2 that is located the circuit breaker incoming line side, be located the side connecting plate 3 that is qualified for the next round of competitions of circuit breaker outgoing line side, support piece 4 then be used for acting as the cushion and make circuit breaker business turn over line end height uniform, concrete structure as follows.

Referring to fig. 1 to 2, the base 1 of the circuit breaker includes at least one pole chamber 10, two ends of a wire inlet side and a wire outlet side of each pole chamber 10 respectively include a mounting cavity 11, a conductive connection plate 20 is mounted in the mounting cavity 11, and the supporting member 4 is disposed below the conductive connection plate 20 on the wire inlet side and/or the wire outlet side of the base 1 and fixed to the base 1 together with the conductive connection plate 20. Specifically, the supporting member 4 can be installed on one or both of the incoming line side and the outgoing line side of the circuit breaker, and the problem in the prior art can be solved as long as the supporting member 4 pads with different thicknesses are selected according to the different thicknesses of the conductive connecting plate 20 to reach the uniform height of the incoming and outgoing line end below the conductive connecting plate 20.

In this embodiment, the wire inlet side connecting plate 2 and the wire outlet side connecting plate 3 are respectively fixed in the installation cavity 11 on the wire inlet side and the installation cavity 11 on the wire outlet side of the polar chamber 10. The supporting piece 4 is arranged below the inlet wire side connecting plate 2 and the outlet wire side connecting plate 3. Specifically, the mounting cavities 11 on the wire inlet side and the wire outlet side of the pole chamber 10 respectively form mounting portions 111 with the same characteristics, and at least one mounting hole 1111 is formed in the mounting portions 111. The supporting piece 4 is placed on the mounting surface 111 of the base 1, and the connecting hole 41 is formed in the position, corresponding to the mounting hole 1111, of the supporting piece 4. The incoming line side gusset plate 2 is placed on the support piece 4 of the incoming line side of the circuit breaker, and the positions of the corresponding mounting hole 1111 and the connecting hole 41 of the incoming line side gusset plate 2 are provided with a first threaded hole 22. The mounting screw penetrates through the mounting hole 1111 and the connecting hole 41 of the support piece 4 and then is connected with the first threaded hole 22 arranged on the inlet wire side connecting plate 2, so that the base 1, the support piece 4 and the inlet wire side connecting plate 2 are fixedly connected; similarly, the outlet side connecting plate 3 is placed on the supporting piece 4 at the outlet side of the circuit breaker, and a second threaded hole 32 is formed in the position, corresponding to the mounting hole 1111 and the connecting hole 41, of the outlet side connecting plate 3. The mounting screw passes through the mounting hole 1111 and the connecting hole 41 of the support piece 4 and then is connected with the second threaded hole 32 arranged on the outlet side connecting plate 3, so that the fixed connection among the base 1, the support piece 4 and the outlet side connecting plate 3 is realized. When the support piece 4 is arranged above the inlet wire side connecting plate 2 and the outlet wire side connecting plate 3, the support piece 4 is provided with a threaded hole, and a mounting screw passes through the mounting hole 1111 and the inlet wire side connecting plate 2 or the outlet wire side connecting plate 3 and then is screwed into the threaded hole in the support piece 4, so that the base 1 and the support piece 4 are fixedly connected with the inlet wire side connecting plate 2 or the outlet wire side connecting plate 3.

As shown in fig. 2, the mounting cavities 11 on the wire inlet side and the wire outlet side of the electrode chamber 10 respectively form limiting portions 112 with the same characteristics, and in this embodiment, the limiting portions 112 are grooves formed on opposite surfaces of the mounting cavities 11. The support member 4 is provided with a clamping portion 42 corresponding to the limiting portion 112, the support member 4 is clamped on the limiting portion 112 of the base 1 through the clamping portion 42, the limit of the support member 4 and the base 1 is realized, and the clamping portion 42 is a boss clamped in a groove of the installation cavity 11. Of course, the limiting portion 112 may also be a boss disposed on the opposite surface of the mounting cavity 11, and the fastening portion 42 is a groove for the boss on the mounting cavity 11 to be fastened in. More or, spacing portion 112 for establish boss and the recess on the installation cavity 11 opposite face respectively, it is corresponding, joint portion 42 is for the recess and the boss with boss and the recess looks joint on the installation cavity 11 opposite face.

As shown in fig. 2 to 4, a first positioning portion 43 is disposed on a surface of the support member 4 facing the inlet wire side coupling plate 2, a second positioning portion 21 is formed on the inlet wire side coupling plate 2 corresponding to the first positioning portion 43, and the support member 4 is positioned with the inlet wire side coupling plate 2 by the cooperation of the first positioning portion 43 and the second positioning portion 21. Similarly, a third positioning portion 31 is formed on the outlet side connecting plate 3 corresponding to the first positioning portion 43, and the support 4 is positioned with the outlet side connecting plate 3 by the cooperation of the first positioning portion 43 and the third positioning portion 31. In this embodiment, the first positioning portion 43 is a boss, and the second positioning portion 21 and the third positioning portion 31 are holes or grooves into which the first positioning portion 43 is inserted. Of course, the first positioning portion 43 is a hole or a groove, and the second positioning portion 21 and the third positioning portion 31 are bosses inserted into the first positioning portion 43.

As shown in fig. 5, the supporting member 4 may be formed with a relief groove 44, and when the circuit breaker has a board for wiring or requires a plug-in wiring, the relief groove 44 may be formed according to the conductive bar 5 with different shapes, so that the conductive bar 5 can pass through.

Claims

1. The utility model provides a base of circuit breaker, the circuit breaker include base (1), electrically conductive link plate (20), base (1) include at least one utmost point room (10), the incoming line side and the outgoing line side both ends of every utmost point room (10) respectively include a installation cavity (11), install electrically conductive link plate (20), its characterized in that in installation cavity (11): the circuit breaker further comprises at least one supporting piece (4), wherein the supporting piece (4) is arranged below the conductive connecting plate (20) on the wire inlet side and/or the wire outlet side of the base (1) and is fixed on the base (1) together with the conductive connecting plate (20).

2. A base of a circuit breaker according to claim 1, wherein: the conductive connecting plate (20) comprises an inlet wire side connecting plate (2) positioned on the inlet wire side of the polar chamber (10) and an outlet wire side connecting plate (3) positioned on the outlet wire side of the polar chamber (10).

3. A base of a circuit breaker according to claim 2, wherein: the installation cavity (11) of the wire inlet side and the wire outlet side of the polar chamber (10) respectively form an installation part (111) with the same characteristics, at least one installation hole (1111) is formed on the installation part (111), a connection hole (41) is formed in the position of the support piece (4) corresponding to the installation hole (1111), a first threaded hole (22) is formed in the position of the wire inlet side connecting plate (2) corresponding to the installation hole (1111) and the connection hole (41), an installation screw penetrates through the installation hole (1111) and the connection hole (41) of the support piece (4) and then is connected with the first threaded hole (22) formed in the wire inlet side connecting plate (2), and the fixed connection of the base (1), the support piece (4) and the wire inlet side connecting plate (2) is realized; the outgoing line side gusset plate (3) place on support piece (4) of circuit breaker outgoing line side, the position department that corresponds mounting hole (1111) and connecting hole (41) on the outgoing line side gusset plate (3) is equipped with second screw hole (32), the mounting screw passes behind connecting hole (41) of mounting hole (1111), support piece (4) and is connected with second screw hole (32) of setting on the lateral gusset plate (3) of being qualified for the next round of competitions, realizes base (1), support piece (4) and the fixed connection of the lateral gusset plate (3) three of being qualified for the next round of competitions.

4. A base of a circuit breaker according to claim 1, wherein: installing cavity (11) of the incoming line side and the outgoing line side of utmost point room (10) constitute spacing portion (112) that have the same characteristic respectively support piece (4) are gone up and are equipped with joint portion (42) corresponding spacing portion (112), support piece (4) are through joint portion (42) joint on spacing portion (112) of base (1), realize the spacing of support piece (4) and base (1).

5. A base of a circuit breaker according to claim 4, wherein: spacing portion (112) for establishing recess and/or the boss on installation cavity (11) opposite face, joint portion (42) for with joint portion (42) looks joint boss and/or recess.

6. A base of a circuit breaker according to claim 3, wherein: the supporting piece (4) is provided with a first positioning part (43), the wire inlet side connecting plate (2) is provided with a second positioning part (21) corresponding to the first positioning part (43), and the supporting piece (4) is matched with the wire inlet side connecting plate (2) through the first positioning part (43) and the second positioning part (21) to realize positioning; the outgoing line side connecting plate (3) is provided with a third positioning part (31) corresponding to the first positioning part (43), and the supporting piece (4) is matched with the outgoing line side connecting plate (3) through the first positioning part (43) and the third positioning part (31) to realize positioning.

7. A base of a circuit breaker according to claim 6, wherein: the first positioning part (43) is a boss, and the second positioning part (21) and the third positioning part (31) are holes or grooves into which the first positioning part (43) is inserted.

8. A base of a circuit breaker according to claim 6, wherein: the first positioning part (43) is a hole or a groove, and the second positioning part (21) and the third positioning part (31) are bosses inserted into the first positioning part (43).

9. A base of a circuit breaker according to claim 7 or 8, wherein: when the circuit breaker has a plate rear wiring or plug-in wiring requirement, the support piece (4) is provided with a yielding groove (44) for the conductive bar (5) to pass through.