CN218996633U - Circuit breaker base and power distribution equipment - Google Patents

Abstract

A circuit breaker base and power distribution equipment relate to the technical field of electric appliances. The circuit breaker base comprises a base, a cover plate connected to the base, and a control circuit board arranged between the base and the cover plate; the base and the cover plate are enclosed to form a containing cavity, and the control circuit board is positioned in the containing cavity; the control circuit board is equipped with a plurality of grafting portions from the protruding of one side of base, and the one end that every grafting portion kept away from the base all passes the apron and outwards extends, and a plurality of grafting portions are arranged in and are connected with a plurality of circuit breakers one-to-one in the distribution equipment to make control circuit board and a plurality of circuit breakers electricity connect. The power distribution equipment comprises the breaker base. The circuit breaker base can realize centralized management, centralized control and regional management on different circuit devices.

Description

Circuit breaker base and power distribution equipment

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to a circuit breaker base and power distribution equipment.

Background

A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. When the power system has faults such as electric leakage, overload and short circuit, the fault mechanism in the power system can be rapidly cut off, or the power supply of the whole power supply is cut off, so that the fault expansion is prevented, and huge economic loss and casualties are avoided.

With the rapid development of network communication technology, especially the application of 5G network is popular, in an electric power system, in order to facilitate the installation of electric power equipment and save the installation space, electronic components such as circuit breakers are usually integrated in the same housing to form a power distribution device. However, in the conventional power distribution apparatus, each circuit breaker has a separate line unit, which complicates the line structure of the entire power distribution apparatus and is disadvantageous in maintenance of the line structure. Therefore, how to provide a new power distribution device to solve the above-mentioned problems is a technical problem to be solved.

Disclosure of Invention

The utility model aims to provide a circuit breaker base and power distribution equipment, which can simplify a circuit structure in the power distribution equipment and realize centralized management, centralized control and regional management on different circuit equipment.

Embodiments of the present utility model are implemented as follows:

in one aspect of the present utility model, a circuit breaker base is provided, the circuit breaker base includes a base, a cover plate connected to the base, and a control circuit board disposed between the base and the cover plate; the base and the cover plate are enclosed to form a containing cavity, and the control circuit board is positioned in the containing cavity; the control circuit board is equipped with a plurality of grafting portions from the protruding of one side of base, and the one end that every grafting portion kept away from the base all passes the apron and outwards extends, and a plurality of grafting portions are arranged in and are connected with a plurality of circuit breakers one-to-one in the distribution equipment to make control circuit board and a plurality of circuit breakers electricity connect. The circuit breaker base can simplify the circuit structure in the power distribution equipment, and realize centralized management, centralized control and regional management on different circuit equipment.

Optionally, the circuit breaker base further includes a first copper bar and a second copper bar located in the accommodating cavity, the first copper bar and the second copper bar are located on two opposite sides of the control circuit board respectively, and one side of the second copper bar is provided with a plurality of connection terminals electrically connected with the second copper bar.

Optionally, the circuit breaker base further comprises an insulating plate arranged in the accommodating cavity, and the insulating plate is connected with the first copper bar and used for electrically isolating the first copper bar from the control circuit board.

Optionally, the circuit breaker base further comprises a housing arranged at one side of the cover plate away from the first copper bar; the housing is connected with the cover plate, and forms a plurality of mutually separated wire placing cavities with the cover plate enclosure, and a plurality of binding posts are respectively placed in the plurality of wire placing cavities.

Optionally, the second copper bar includes a plurality of first wiring boards and a plurality of second wiring boards, each of the first wiring boards and the second wiring boards includes a wire pressing board, a plug board, and a connection board connected between the wire pressing board and the plug board; the line ball board locates puts the line intracavity, and the one end that the plugboard was kept away from the connecting plate passes the apron and extends towards one side that deviates from the base.

Optionally, the wiring terminal comprises a wiring frame and a wire pressing screw screwed on the wiring frame, the wiring frame is arranged in the housing, and one end of the wire pressing screw, which is far away from the wiring frame, extends out of the housing; and the wire pressing screw is screwed, and the wire pressing screw can drive the second copper bar to move so as to electrically connect the second copper bar with a wire of the power distribution equipment.

Optionally, the circuit breaker base further includes a first spacer for electrically isolating the first and second wiring boards and a second spacer for electrically isolating the second wiring board and the control circuit board.

Optionally, the circuit breaker base further includes a signal terminal electrically connected to the control circuit board, the signal terminal is located at one side of the control circuit board, and the signal terminal is used for being electrically connected to the weak current device.

Optionally, the base includes first body and protruding structure of locating first body and being close to the apron one side, and control circuit board is arranged in on protruding structure, and is connected with protruding structure insulation.

In another aspect of the utility model, a power distribution apparatus is provided that includes the circuit breaker base described above.

The beneficial effects of the utility model include:

the circuit breaker base comprises a base, a cover plate connected to the base and a control circuit board arranged between the base and the cover plate; the base and the cover plate are enclosed to form a containing cavity, and the control circuit board is positioned in the containing cavity; the control circuit board is equipped with a plurality of grafting portions from the protruding of one side of base, and the one end that every grafting portion kept away from the base all passes the apron and outwards extends, and a plurality of grafting portions are arranged in and are connected with a plurality of circuit breakers one-to-one in the distribution equipment to make control circuit board and a plurality of circuit breakers electricity connect. When the circuit breaker is used, a plurality of circuit breakers can be connected to a plurality of plug-in parts of the circuit breaker base in a plug-in mode, so that on one hand, the circuit breaker base is arranged, and the user can assemble the power distribution equipment more conveniently; on the other hand, as the control units of the plurality of branch circuit breakers are integrated on the control circuit board of the circuit breaker base, the circuit structure of the whole distribution equipment can be simplified firstly, and secondly, when the control circuit of the distribution equipment fails, a user only needs to take off the branch circuit breakers and only needs to disassemble the circuit breaker base for maintenance, and the individual branch circuit breakers are not required to be disassembled, so that the daily maintenance is simpler; meanwhile, the circuit breaker base can realize centralized management, centralized control and regional management on different circuit devices.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is one of exploded views of a circuit breaker base provided by an embodiment of the present utility model;

FIG. 2 is a second exploded view of a circuit breaker base according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a circuit breaker base according to an embodiment of the present utility model;

fig. 4 is a second schematic structural diagram of a circuit breaker base according to an embodiment of the present utility model;

fig. 5 is a third schematic structural view of a circuit breaker base according to an embodiment of the present utility model;

FIG. 6 is an enlarged view of a portion of FIG. 1 at A;

FIG. 7 is a partial enlarged view at B in FIG. 4;

FIG. 8 is an exploded view of a first patch panel and a second patch panel provided in an embodiment of the present utility model;

fig. 9 is a schematic structural diagram of a connection terminal according to an embodiment of the present utility model.

Icon: 10-a base; 11-a first body; 12-a bump structure; 20-cover plate; 30-a control circuit board; 31-a plug-in part; 40-signal terminals; 50-a first copper bar; 51-total outlet board; 52-loading a wire inlet plate; 60-second copper bars; 61-total inlet wire board; 62-load outlet plate; 63-a housing; 631-wiring holes; 651-first patch panel; 652-a second wiring board; 653-line ball board; 654-connection plates; 655-a plugboard; 66-setting a wire cavity; 661-a first subchamber; 662-a second subchamber; 70-an insulating plate; 80-connecting terminals; 81-a wire frame; 82-a wire pressing screw; 91-a first separator; 92-a second separator; 200-a circuit breaker; 210-total circuit breaker; 220-branch circuit breaker.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 3, the present embodiment provides a circuit breaker base, which includes a base 10, a cover 20 connected to the base 10, and a control circuit board 30 disposed between the base 10 and the cover 20; the base 10 and the cover plate 20 are enclosed to form a containing cavity, and the control circuit board 30 is positioned in the containing cavity; the control circuit board 30 is provided with a plurality of plug-in parts 31 protruding from one surface facing away from the base 10, one end of each plug-in part 31 far away from the base 10 penetrates through the cover plate 20 and extends outwards, and the plug-in parts 31 are used for being in one-to-one plug connection with the circuit breakers 200 in the power distribution equipment so that the control circuit board 30 and the circuit breakers 200 are electrically connected. The circuit breaker base can simplify the circuit structure in the power distribution equipment, and can realize centralized management, centralized control and regional management on different circuit equipment.

As shown in fig. 1 and 2, the circuit breaker base provided in the present application includes a base 10, a cover plate 20, and a control circuit board 30, and the control circuit board 30 is located in a receiving cavity formed by the base 10 and the cover plate 20.

The control circuit board 30 has a plurality of plugging portions 31 on a surface facing away from the base 10, one ends of the plugging portions 31 are electrically connected with the control circuit board 30, and the other ends extend from the control circuit board 30 toward a direction facing away from the base 10, and pass through the cover 20 and extend out from the cover 20. In this way, the portion of the plug-in portion 31 protruding beyond the cover 20 can be used for plug-in connection with the circuit breaker 200 in the power distribution apparatus. It should be appreciated that the circuit breaker 200 in the power distribution apparatus should have a mating portion that mates with the plug portion 31.

The cover plate 20 should be provided with a hole for allowing the plurality of plugging portions 31 to extend, and the shape of the hole is not limited in this application, so long as the hole can be formed.

In the present embodiment, the plug-in connection of the plurality of plug-in parts 31 and the plurality of circuit breakers 200 one-to-one means that each circuit breaker 200 should have the plug-in part 31 corresponding thereto, and the plug-in part 31 and the corresponding circuit breaker 200 are electrically connected. Thus, the present application can realize the general control of a plurality of circuit breakers 200 through one control circuit board 30. Compared with the prior art that each circuit breaker 200 has a separate circuit board unit, the control circuit board 30 is used for integrating all the control circuit parts of all the circuit breakers 200 together, so that each circuit breaker 200 only works as an execution unit.

In the present application, control lines such as a bus bar should be provided in the control circuit board 30. Illustratively, the control circuit board 30 may be provided with a main control line and a plurality of load lines connected in parallel with the main control line, and the circuit breaker 200 includes a main circuit breaker 210 and a plurality of branch circuit breakers 220.

In summary, the circuit breaker base provided in the present application includes a base 10, a cover 20 connected to the base 10, and a control circuit board 30 disposed between the base 10 and the cover 20; the base 10 and the cover plate 20 are enclosed to form a containing cavity, and the control circuit board 30 is positioned in the containing cavity; the control circuit board 30 is provided with a plurality of plug-in parts 31 protruding from one surface facing away from the base 10, one end of each plug-in part 31 far away from the base 10 penetrates through the cover plate 20 and extends outwards, and the plug-in parts 31 are used for being in one-to-one plug connection with the circuit breakers 200 in the power distribution equipment so that the control circuit board 30 and the circuit breakers 200 are electrically connected. When in use, a user can connect a plurality of circuit breakers 200 to a plurality of plug-in parts 31 of the circuit breaker base in a plug-in mode, so that on one hand, by arranging the circuit breaker base, the user can assemble the power distribution equipment more conveniently; on the other hand, since the control units of the plurality of circuit breakers 200 are integrated on the control circuit board 30 of the circuit breaker base, the circuit structure of the whole distribution equipment can be simplified firstly, and secondly, when the control circuit of the distribution equipment fails, a user only needs to take off the circuit breaker 200 and only needs to disassemble the circuit breaker base for maintenance, and the individual circuit breakers 200 are not required to be disassembled, so that the daily maintenance is simpler; meanwhile, the circuit breaker base can realize centralized management, centralized control and regional management on different circuit devices.

With continued reference to fig. 1 and 3, optionally, the circuit breaker base further includes a signal terminal 40 electrically connected to the control circuit board 30, the signal terminal 40 is located on one side of the control circuit board 30, and the signal terminal 40 is used for electrically connecting with a weak current device.

Illustratively, in the present embodiment, the signal terminal 40 is located at one side of the control circuit board 30, so that the arrangement of the signal terminal 40 does not interfere with the insertion and extraction of the branch circuit breaker 220.

Referring to fig. 4, optionally, the base 10 includes a first body 11 and a protruding structure 12 protruding from a surface of the first body 11 near the cover 20, and the control circuit board 30 is disposed on the protruding structure 12 and is connected with the protruding structure 12 in an insulating manner.

The protruding structures 12 may include a plurality of protruding structures 12, and two adjacent protruding structures 12 are disposed at intervals.

It should be noted that, the control circuit board 30 may be disposed on the protruding structure 12 and not fixedly connected to the protruding structure 12; or can be fixed with the raised structure 12 through a fixing piece or welded together on the basis of being arranged on the raised structure 12; alternatively, the control circuit board 30 may be fastened to the bump structure 12, and the specific connection mode between the control circuit board 30 and the bump structure 12 may be selected by those skilled in the art according to the needs, which is not limited in this application. This application is through setting up protruding structure 12 on first body 11 to set up control circuit board 30 on this protruding structure 12, like this, can reduce the area of contact of control circuit board 30 and base plate, and then can avoid the base plate to lead to the fact the damage to the printed wiring on the control circuit board 30.

In addition, can also set up spacing portion on this protruding structure 12, this spacing portion can play spacing effect to control circuit board 30, avoids control circuit board 30 to translocate, and this spacing portion also can be convenient for the user to be located control circuit board 30 to protruding structure 12 fast simultaneously. For example, the protruding structures 12 may include two opposite groups, and at least one group of protruding structures 12 is provided with a limiting surface (not shown) in a direction toward the other group of protruding structures 12, where the limiting surface is a vertical surface. Of course, the above-described limiting portion of the protruding structure 12 is merely an example, and is not a limitation of the specific structure of the limiting portion.

Optionally, referring to fig. 1, 4 and 5, the circuit breaker base further includes a first copper bar 50 and a second copper bar 60 located in the accommodating cavity, where the first copper bar 50 and the second copper bar 60 are located on opposite sides of the control circuit board 30, respectively, and one side of the second copper bar 60 is provided with a plurality of connection terminals 80 electrically connected with the second copper bar.

Illustratively, the first copper bar 50 is provided with a total wire-leading plate 51 and a plurality of load wire-leading plates 52, and the second copper bar 60 is provided with a total wire-leading plate 61 and a plurality of load wire-leading plates 62; the total inlet board 61 and the total outlet board 51 are electrically connected to the inlet and outlet terminals of the total circuit breaker 210, respectively, the plurality of load inlet boards 52 are electrically connected to the inlet terminals of the plurality of branch circuit breakers 220, and the plurality of load outlet boards 62 are electrically connected to the outlet terminals of the plurality of branch circuit breakers 220.

The total incoming line board 61 and the total outgoing line board 51 belong to a total control line part of the control circuit board 30, the plurality of load incoming line boards 52 and the plurality of load outgoing line boards 62 are parts of a plurality of load lines, and the total control line can be respectively connected with the plurality of load lines in parallel through a bus bar.

And the total control line is electrically connected to the total circuit breaker 210, and the plurality of load lines are correspondingly electrically connected to the plurality of branch circuit breakers 220, so that the plurality of branch circuit breakers 220 can be controlled by the total circuit breaker 210.

In particular, in the present embodiment, the above-described total outlet plate 51 and the plurality of load inlet plates 52 are arranged side by side.

Firstly, to achieve insulation between the first copper bar 50 and the control circuit board 30, and secondly, to support the first copper bar 50, in this embodiment, the circuit breaker base further includes an insulating board 70 disposed in the accommodating cavity, where the insulating board 70 is connected to the first copper bar 50, and is used for electrically isolating the first copper bar 50 from the control circuit board 30.

As shown in fig. 5, a socket hole may be formed in the insulating plate 70, so that the first copper bar 50 is inserted into the socket hole, and thus, the assembly is convenient.

In addition, as shown in fig. 4, the first copper bar 50 may be disposed on the bump structure 12 of the base 10.

Referring to fig. 4 to 7, optionally, the circuit breaker base further includes a cover 63 disposed on a side of the cover 20 facing away from the first copper bar 50; the cover 63 is connected with the cover 20, and forms a plurality of wire placing cavities 66 which are separated from each other with the cover 20, and a plurality of connecting terminals 80 are respectively placed in the plurality of wire placing cavities 66.

In this embodiment, the wire placing cavity 66 includes a first subchamber 661 and a plurality of second subchambers 662. In practice, the first subchamber 661 may be used to house a terminal 80 for access to the total wire and the second subchamber 662 may be used to house a terminal 80 for access to the load wire.

The cover 63 can prevent the second copper bar 60 from being exposed to cause potential safety hazard.

It should be noted that, as shown in fig. 2, in the present embodiment, a plurality of wire holes 631 are provided on a side of the housing 63 facing away from the first copper bar 50, wherein the wire holes 631 corresponding to the wire terminals 80 for accessing the total wires are used for accessing the total wires, and the wire holes 631 corresponding to the wire terminals 80 for accessing the load wires are used for accessing the load wires.

In the present embodiment, the cover 63 and the cover 20 are fastened by a snap, as shown in fig. 1 and 3. The specific structure used for fastening is not limited in this application, and a person skilled in the art can select an appropriate structure according to needs.

Also, in the present embodiment, the second copper bar 60 includes a plurality of first wiring boards 651 and a plurality of second wiring boards 652, each of the first wiring boards 651 and the second wiring boards 652 including a pressing board 653, a plug board 655, and a connection board 654 connected between the pressing board 653 and the plug board 655; a wire clamping plate 653 is disposed within the wire cavity 66 and an end of the splice plate 655 remote from the web 654 extends through the cover plate 20 and toward a side facing away from the base 10.

Referring to fig. 6 to 8, in the present embodiment, the load outlet plate 62 and the crimping plate 653 are vertical, and the connection plate 654 is L-shaped. Of course, the shapes of the load outlet plate 62, the voltage plate 653 and the connection plate 654 are merely examples, and are not limiting to the application, and in other embodiments, the load outlet plate 62 and the voltage plate 653 may be disposed at an angle other than perpendicular.

It should be understood that the circuit breaker base provided in the present application is wired in a two-in two-out manner, and therefore, the first copper bar 50 and the second copper bar 60 each have a corresponding L line and N line.

As for the second copper bar 60, the second copper bar 60 includes a plurality of first wiring boards 651 and a plurality of second wiring boards 652, one first wiring board 651 and one second wiring board 652 being a group, and the second copper bar 60 includes a plurality of groups of wiring boards in total, the first wiring board 651 and the second wiring board 652 in each group of wiring boards corresponding to L lines and N lines, respectively; also, one of the sets of wiring boards serves as an overall incoming board 61, and the remaining sets of wiring boards serve as load outgoing boards 62.

For the first copper bar 50, the first copper bar 50 includes a total outgoing line board 51 and a plurality of load incoming line boards 52, the total outgoing line board 51 includes two outgoing line boards corresponding to L lines and N lines, respectively, and each load incoming line board 52 also includes two outgoing line boards corresponding to L lines and N lines, respectively.

Referring to fig. 5 and 9, optionally, the terminal 80 includes a wire frame 81 and a wire pressing screw 82 screwed on the wire frame 81, the wire frame 81 is disposed in the housing 63, and an end of the wire pressing screw 82 away from the wire frame 81 protrudes from the housing 63; the wire pressing screw 82 is screwed, and the wire pressing screw 82 can drive the second copper bar 60 to move so as to electrically connect the second copper bar 60 with the wire of the power distribution equipment.

The plurality of connection terminals 80 are located in the first subchamber 661 and the second subchamber 662 of the housing 63, respectively. The connection terminals 80 located in the first subchamber 661 are used for pressing the total conductor, and the connection terminals 80 located in the second subchamber 662 are used for pressing the load conductor.

Taking the terminal 80 for compacting the total wire as an example, the wire frame 81 of the terminal 80 is disposed in the first subchamber 661, the second copper bar 60 is partially disposed in the first subchamber 661, the total wire is connected from the wire hole 631 on one side of the housing 63 away from the first copper bar 50 and enters the first subchamber 661, and the total wire is disposed below the second copper bar 60 in the first subchamber 661. At this time, the crimping screw 82 is screwed, and the crimping screw 82 can drive the second copper bar 60 toward the total wire and make reliable contact with the total wire. Thus, the total wire can be electrically connected to the second copper bar 60. The principle of the connection mode of the load wire and the total wire is the same, and the application is not repeated.

Optionally, the circuit breaker base further includes a first spacer 91 and a second spacer 92, the first spacer 91 for electrically isolating the first wiring board 651 and the second wiring board 652, and the second spacer 92 for electrically isolating the second wiring board 652 and the control wiring board 30.

In this way, the first wiring board 651 and the second wiring board 652 can be prevented from interfering with each other, and the second wiring board 652 and the control wiring board 30 can be prevented from interfering with each other.

The structures of the first separator 91 and the second separator 92 are not limited, and those skilled in the art can design the device according to the need, so long as the first wiring board 651 and the second wiring board 652 and the control circuit board 30 can be electrically isolated.

When the first wiring board 651 and the second wiring board 652 are vertically arranged, the first spacer 91 can electrically isolate the first wiring board 651 and the second wiring board 652 as shown in fig. 6. When the first wiring board 651 and the second wiring board 652 are arranged side by side, as shown in fig. 6, a plurality of partition plates may be provided on the first partition plate 91, so that the first wiring board 651 and the second wiring board 652 may be partitioned by the first partition plate 91.

In another aspect of the utility model, a power distribution apparatus is provided that includes the circuit breaker base described above. Because the specific structure and the beneficial effects of the breaker base are described in detail above, the application is not repeated here.

The above description is only of alternative embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Claims (10)

1. A circuit breaker base, characterized by comprising a base (10), a cover plate (20) connected to the base (10), and a control circuit board (30) arranged between the base (10) and the cover plate (20); the base (10) and the cover plate (20) are enclosed to form a containing cavity, and the control circuit board (30) is positioned in the containing cavity; the control circuit board (30) deviates from the one side of base (10) and is protruding to be equipped with a plurality of grafting portion (31), every grafting portion (31) keep away from the one end of base (10) is all passed apron (20) and outwards extend, a plurality of grafting portion (31) are arranged in with a plurality of circuit breakers (200) in the distribution facilities one-to-one plug connection, so that control circuit board (30) and a plurality of circuit breakers (200) electricity are connected.

2. The circuit breaker base of claim 1, further comprising a first copper bar (50) and a second copper bar (60) located in the receiving cavity, the first copper bar (50) and the second copper bar (60) being located on opposite sides of the control circuit board (30), respectively, wherein one side of the second copper bar (60) is provided with a plurality of connection terminals (80) electrically connected thereto.

3. The circuit breaker base of claim 2, further comprising an insulating plate (70) disposed within the receiving cavity, the insulating plate (70) being connected to the first copper bar (50) for electrically isolating the first copper bar (50) from the control circuit board (30).

4. The circuit breaker base of claim 2 further comprising a cover (63) disposed on a side of the cover plate (20) facing away from the first copper bar (50); the housing (63) is connected with the cover plate (20), and is enclosed with the cover plate (20) to form a plurality of mutually-separated wire placing cavities (66), and a plurality of connecting terminals (80) are respectively placed in the plurality of wire placing cavities (66).

5. The circuit breaker base of claim 4 wherein said second copper bar (60) includes a plurality of first wiring boards (651) and a plurality of second wiring boards (652), said first wiring boards (651) and said second wiring boards (652) each including a crimping board (653), a plugboard (655), and a connection board (654) connected between said crimping board (653) and said plugboard (655); the wire pressing plate (653) is arranged in the wire placing cavity (66), and one end, far away from the connecting plate (654), of the plug board (655) penetrates through the cover plate (20) and extends towards one side, far away from the base (10).

6. The circuit breaker base of claim 4 wherein said terminal (80) includes a wire frame (81) and a wire clamping screw (82) threaded onto said wire frame (81), said wire frame (81) being disposed within said housing (63), an end of said wire clamping screw (82) distal from said wire frame (81) extending from said housing (63); the wire pressing screw (82) is screwed, and the wire pressing screw (82) can drive the second copper bar (60) to move so as to electrically connect the second copper bar (60) with a wire of the power distribution equipment.

7. The circuit breaker base of claim 5 further comprising a first spacer (91) and a second spacer (92), the first spacer (91) being configured to electrically isolate the first wiring board (651) from the second wiring board (652), the second spacer (92) being configured to electrically isolate the second wiring board (652) from the control wiring board (30).

8. The circuit breaker base of claim 1 further comprising a signal terminal (40) electrically connected to the control circuit board (30), the signal terminal (40) being located on one side of the control circuit board (30) and the signal terminal (40) being for electrical connection with a weak current device.

9. The circuit breaker base of claim 1, wherein the base (10) includes a first body (11) and a protruding structure (12) protruding from a surface of the first body (11) near the cover plate (20), and the control circuit board (30) is disposed on the protruding structure (12) and is connected with the protruding structure (12) in an insulating manner.

10. A power distribution apparatus comprising the circuit breaker base of any one of claims 1 to 9.

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