Contactor assembly, relay, electric control system and vehicle

Abstract

Provided are a contactor assembly, a relay, an electric control system and a vehicle, the contactor assembly comprises a static contact and a wiring copper bar, and the wiring copper bar and the static contact are connected into an integrated structure. According to the technical scheme, a third-party connecting structure is omitted, and the wiring copper bar and the static contact are directly connected to the integrated structure, so that the space occupied by the third-party connecting structure for the contactor assembly is saved, the size of the contactor assembly is reduced, and the reliability of the contactor assembly is improved. The space utilization rate of the relay provided with the contactor assembly on an electric control system is improved, and the integration of the electric control system is improved.

Description

Technical Field

[0001] The present application relates to the technical field of relays, and in particular to a contactor assembly, a relay, an electric control system and a vehicle. Background Art

[0002] As a common controllable electronic switch, relays are widely used in various high and low voltage circuits. Relays include static contacts and wiring copper bars. Relays control the direction of circuit current by controlling the on and off of current between static contacts. Static contacts are connected to the control circuit of the electric control system through wiring copper bars.

[0003] In the related art, the connection method between the copper busbar and the static contact occupies a large space, has a low space utilization rate for the electric control system, and is not conducive to the integration of the electric control system. Utility Model Content

[0004] The purpose of this application is to provide a contactor assembly, a relay, an electric control system and a vehicle, aiming to solve the problems of static contacts and wiring copper bars in the related technology.

[0005] To achieve the purpose of the present application, in a first aspect, the present application provides a contactor assembly, the contactor assembly comprising:

[0006] stationary contacts; and

[0007] A wiring copper bar is connected with the static contact to form an integral structure.

[0008] In a possible implementation manner, the wiring copper busbar is welded to the static contact.

[0009] In a possible implementation manner, the wiring copper busbar and the static contact are integrally formed.

[0010] In a possible implementation, the wiring copper busbar includes a first connecting portion and a fixing portion; the first connecting portion has a first surface and a second surface that are arranged opposite to each other, and the second surface is connected to the static contact;

[0011] The fixing portion has a first end and a second end that are oppositely disposed, the first end is connected to the first connecting portion, and the second end extends in a direction from the first surface to the second surface.

[0012] In a possible implementation, the wiring copper busbar further includes a second connecting portion, one end of the second connecting portion is connected to the second end, and the other end of the second connecting portion extends in a direction away from the static contact.

[0013] In a possible implementation, the contactor assembly further includes a support member, and the static contact is disposed on the support member;

[0014] The fixing portion is connected to the supporting member.

[0015] In a possible implementation, the static contacts include two first static contacts and two second static contacts; the wiring copper bar includes two first wiring copper bars and one second wiring copper bar; the two first wiring copper bars are respectively connected to the two first static contacts; and the two second static contacts are spaced apart and arranged on the second wiring copper bar;

[0016] The contactor assembly includes two support members, each of which includes a first mounting hole and a second mounting hole, the first mounting hole is used to accommodate the first static contact, and the second mounting hole is used to accommodate the second static contact.

[0017] In a possible implementation, the contactor assembly further includes a sampling plug, and the sampling plug includes a first plug portion and a second plug portion;

[0018] The first plug-in portion is fixedly connected to the wiring copper bar, one end of the second plug-in portion is connected to the first plug-in portion, and the other end extends away from the wiring copper bar.

[0019] In a possible implementation, along the length direction of the first inserting piece portion, the length of the first inserting piece portion is greater than the length of the second inserting piece portion.

[0020] In a possible implementation, the contactor assembly includes a plurality of sampling plugs, and each of the sampling plugs is arranged along the same side of the wiring copper busbar.

[0021] In a second aspect, the present application further proposes a relay, wherein the relay comprises a contactor assembly, wherein the contactor assembly comprises:

[0022] stationary contacts; and

[0023] A wiring copper bar is connected with the static contact to form an integral structure.

[0024] In a third aspect, the present application further proposes an electric control system, the electric control system comprising a relay, the relay comprising a contactor assembly, the contactor assembly comprising:

[0025] stationary contacts; and

[0026] A wiring copper bar is connected with the static contact to form an integral structure.

[0027] In a fourth aspect, the present application further proposes a vehicle, the vehicle comprising an electric control system, the electric control system comprising a relay, the relay comprising a contactor assembly, and the contactor assembly comprising:

[0028] stationary contacts; and

[0029] A wiring copper bar is connected with the static contact to form an integral structure.

[0030] The technical solution of the present application eliminates the third-party connection structure and directly connects the wiring copper bus and the static contact into an integrated structure. In this way, the space occupied by the third-party connection structure for the contactor assembly is saved, the volume of the contactor assembly is reduced, the space utilization rate of the relay for the electric control system after the contactor assembly is installed is improved, and the integration of the electric control system is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 A cross-sectional view of an embodiment of a relay provided by the present application;

[0033] Figure 2 An exploded view of the relay provided for this application;

[0034] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of the contactor assembly;

[0035] Figure 4 A schematic diagram of the three-dimensional structure of an embodiment of the connection between the wiring copper bar and the static contact;

[0036] Figure 5 A schematic diagram of the three-dimensional structure of another embodiment of the connection between the wiring copper bar and the static contact;

[0037] Figure 6 A cross-sectional view of another embodiment of a relay provided in the present application.

[0038] Description of reference numerals:

[0039] 1000 relays;

[0040] 100 contactor assembly;

[0041] 1, 1a, 1b static contact, 11, 11a, 11b first static contact, 12, 12a, 12b second static contact;

[0042] 2, 2a, 2b wiring copper bar, 21 first connection part, 211 first surface, 212 second surface, 22 fixing part, 23 second connection part, 24, 24a, 24b first wiring copper bar, 25 second wiring copper bar;

[0043] 3 support member, 31 accommodating cavity;

[0044] 4 sampling insert, 41 first insert portion, 42 second insert portion;

[0045] 200, 200a, 200b moving contacts;

[0046] 300 driving assembly, 310 mounting frame, 320 mover, 330 stator, 331 stator core, 332 coil;

[0047] 400 control plug. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0049] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0050] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this application and in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this application includes any and all combinations of one or more of the related listed items.

[0051] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0052] The present application proposes a vehicle, which can be an electric car, a fuel car, or a hybrid car, and the present application does not limit this. The vehicle can be a car, a truck, or a forklift, and the present application does not limit this. The vehicle includes a body, an actuator, and an electronic control system. The body serves as the supporting skeleton of the vehicle and is used to support and connect the various assemblies of the vehicle. The electronic control system and the actuator are arranged on the body, and the electronic control system is electrically connected to the actuator to control the movement of the actuator. Depending on the actuator, the electronic control system is also different. When the actuator is a motor, the electronic control system is a motor electronic control system, and when the actuator is a window, the electronic control system is a window electronic control system. When the actuator is a distribution box, the electronic control system is a distribution box control system, and the present application does not limit this.

[0053] In order to explain the operating principle of the electric control system and the actuator in detail, this application takes a high-voltage distribution box as an example. When the actuator is a high-voltage distribution box, the actuator includes a box and a power supply. The box is arranged on the vehicle body, and the box is used to provide support and protection for the battery and the electric control system. The box can be a part of the vehicle body, or a structure independent of the vehicle body. The shape of the box can be rectangular, square, or other regular or irregular shapes, and this application does not limit this.

[0054] The battery is installed in the box. The battery is used to store electric energy and release electric energy when other electric devices in the vehicle, such as motors, windows, air conditioners, etc., need electricity to supply the electric devices. The electric control system is installed in the box. One end of the electric control system is connected to the battery and the other end is connected to various electric devices in the vehicle. The electric control system is used to change the flow direction of its own current to achieve power distribution to different electric devices.

[0055] The electric control system includes a control circuit and a relay. The control circuit is composed of multiple current branches. The relay is set on the current branch. The relay is used to change the on-off of its own circuit to control the on-off of the current in the current branch where it is located, thereby changing the current flow direction of the power supply to the electrical equipment, and finally realizing the power supply to different electrical equipment.

[0056] Please refer to Figure 1 and Figure 2The relay 1000 includes a contactor assembly 100, a moving contact 200 and a drive assembly 300, and the contactor assembly 100 is connected to the current branch. The moving contact 200 is movably arranged in the relay 1000, and the moving contact 200 can move close to and away from the contactor assembly 100. When the moving contact 200 contacts the contactor assembly 100, the circuit of the contactor assembly 100 is turned on, thereby making the current branch where the relay 1000 is located turned on. When the moving contact 200 is separated from the contactor assembly 100, the circuit of the contactor assembly 100 is disconnected, and the current branch where the relay 1000 is located is in an open circuit state.

[0057] The driving assembly 300 is used to drive the moving contact 200 to move. The driving assembly 300 includes a mounting frame 310, a mover 320, a stator 330 and a circuit board (not shown in the figure). The mounting frame 310 serves as a supporting frame of the driving assembly 300 and is used to support and connect various parts of the supporting assembly. The mover 320 is movably arranged on the mounting frame 310. The mover 320 is connected to the moving contact 200 and can drive the moving contact 200 to move closer to or away from the contactor assembly 100. The stator 330 is arranged on the mounting frame 310. The stator 330 is used to generate a magnetic field to drive the mover 320 to move. The stator 330 includes a stator core 331 and a coil 332. The stator core 331 is arranged on the mounting frame 310, and the coil 332 is wound on the stator core 331. The coil 332 is connected to the circuit board through the control plug 400. The circuit board is integrated with a control program. The circuit board can control the on and off of the current of the coil 332 through the setting of the program control, thereby driving the mover 320 to move closer to or away from the contactor assembly 100. Specifically, the mover 320 adopts a magnetic conductive structure. When the coil 332 is energized, the coil 332 generates a magnetic field at the stator core 331, thereby attracting the mover 320 to move upward. The mover 320 moves upward, thereby driving the moving contact 200 to move upward, and the moving contact 200 contacts the contactor assembly 100, thereby making the current branch where the relay 1000 is located conductive. When the coil 332 loses power, the magnetic field that attracts the mover 320 to move upward disappears, and the mover 320 moves downward under the action of gravity, and drives the moving contact 200 to separate from the contactor assembly 100, thereby disconnecting the current branch where the relay 1000 is located.

[0058] The contactor assembly 100 includes at least two static contacts 1 and a copper busbar 2, and the static contact 1 is connected to the current branch through the copper busbar 2. The contactor assembly 100 can control the on and off of the circuit of the relay 1000 by controlling the on and off of the current between the two static contacts 1. Specifically, when the coil 332 is energized, the coil 332 and the coil 332 generate a magnetic field at the stator core 331, thereby attracting the mover 320 to move upward. The mover 320 moves upward, thereby driving the moving contact 200 to move upward. The moving contact 200 is connected between the two static contacts 1, thereby making the current between the two static contacts 1 in a conducting state, and the current of the battery can pass through the copper busbar 2a, the static contact 1a, the moving contact 200, the static contact 1b, and the copper busbar 2b in sequence, and finally reach the electrical equipment that needs to be powered. When the electrical equipment needs to stop powering, the circuit board can disconnect the current delivered to the coil 332 under the control of the control program, thereby causing the coil 332 to lose power. After the coil 332 loses power, the magnetic field that attracts the mover 320 to move upward disappears, and the mover 320 moves downward under the action of gravity, driving the moving contact 200 to separate from the static contacts 1a and 1b, thereby disconnecting the battery from the electrical device.

[0059] In the related art, the static contact 1 and the wiring copper busbar 2 are usually connected by a third-party connection structure. The third-party connection structure can be a threaded part or other plug-in structure. Taking the thread as an example, in this embodiment, the static contact 1 is provided with a threaded hole, and the wiring copper busbar 2 is provided with a through hole. The threaded part passes through the through hole of the wiring copper busbar 2 and the threaded hole of the static contact 1 in turn to connect the wiring copper busbar 2 with the static contact 1. In this connection method, a deeper threaded hole needs to be provided on the static contact 1 to ensure that there is a sufficient length of screwing depth between the threaded part and the threaded hole, thereby ensuring the stability of the connection between the static contact 1 and the wiring copper busbar 2. The provision of the threaded hole will undoubtedly increase the length of the static contact 1, thereby increasing the height of the relay 1000, and ultimately reducing the space utilization rate of the relay 1000 for the box.

[0060] To solve the above problems, in the present application, the static contact 1 and the wiring copper bus 2 are connected as an integrated structure, so as to eliminate the space occupied by the third-party connection structure for the contactor assembly 100, reduce the volume of the contactor assembly 100, improve the space utilization rate of the relay 1000 for the electric control system after the contactor assembly 100 is installed, and improve the integration of the electric control system.

[0061] There are many ways to connect the copper busbar 2 and the static contact 1 into an integrated structure. In one embodiment of the present application, the copper busbar 2 and the static contact 1 are integrally formed. The copper busbar 2 and the static contact 1 can be integrally formed by machining or by mold casting, and the present application does not limit this. The integral forming of the copper busbar 2 and the static contact 1 can effectively reduce the connection gap between the copper busbar 2 and the static contact 1, improve the connection strength between the copper busbar 2 and the static contact 1, and improve the stability of the connection between the copper busbar 2 and the static contact 1.

[0062] In another possible implementation of the present application, the copper busbar 2 and the static contact 1 can also be connected to form an integrated structure by welding, and the welding can be laser melting welding or laser wire welding, which is not limited in the present application. Compared with directly forming the copper busbar 2 and the static contact 1 as one piece, first forming the copper busbar 2 and the static contact 1 separately and then welding them together can effectively reduce the difficulty of making the copper busbar 2 and the static contact 1, reduce the manufacturing cost of the copper busbar 2 and the static contact 1, and improve the manufacturing efficiency of the copper busbar 2 and the static contact 1.

[0063] Please refer to Figure 3 The wiring copper busbar 2 includes a first connection portion 21 and a fixed portion 22, wherein the first connection portion 21 has a first surface 211 and a second surface 212 that are arranged opposite to each other, and the first connection portion 21 is connected to the static contact 1 through the second surface 212. The fixed portion 22 has a first end and a second end that are arranged opposite to each other, wherein the first end is connected to the first connection portion 21, and the second end extends in a direction from the first surface 211 to the second surface 212, and the second end is used to connect to the current branch. The present application guides the connection point between the wiring copper busbar 2 and the current branch to below the connection surface between the wiring copper busbar 2 and the static terminal by bending the fixed portion 22 toward the second surface 212, thereby reducing the height of the connection point between the wiring copper busbar 2 and the current branch, thereby reducing the height of the relay 1000, and improving the space utilization rate of the relay 1000 for the electric control system.

[0064] The copper busbar 2 also includes a second connection portion 23, one end of which is connected to the second end, and the other end of which extends away from the static contact 1. The current branch is connected to the second connection portion 23. In this way, the distance from the connection point between the current branch and the copper busbar 2 to the static terminal is extended, the connection space between the current branch and the copper busbar 2 is increased, the connection difficulty between the current branch and the copper busbar 2 is reduced, and the connection efficiency between the current branch and the copper busbar 2 is improved.

[0065] The first connection portion 21, the fixing portion 22 and the second connection portion 23 can be integrally formed, or can be separately provided and then connected to each other, and the present application does not limit this. In one embodiment of the present application, the first connection portion 21, the fixing portion 22 and the second connection portion 23 are integrally formed, so as to reduce the production cost of the copper busbar 2 and improve the production efficiency of the copper busbar 2.

[0066] Please refer to Figure 1 and Figure 3 The contactor assembly 100 also includes a support member 3, which is provided with a housing cavity 31 and a mounting hole connected to the housing cavity 31. The static contact 1 is installed in the mounting hole, and at least part of it extends from the mounting hole into the housing cavity 31, and the moving contact 200 is movably arranged in the housing cavity 31. The housing cavity 31 is sealed, and the housing cavity 31 is filled with arc extinguishing gas, which can be hydrogen, nitrogen or sulfur dioxide, and the utility model does not limit this. When the static contact 1 and the moving contact 200 generate an arc due to contact or separation, the arc extinguishing gas can quickly extinguish the arc, protect the safety of the static contact 1 and the moving contact 200, and extend the service life of the relay 1000.

[0067] The material of the support member 3 can be metal or non-metal, and this application does not impose any restrictions on this. In order to reduce the impact of the arc generated by the static contact 1 and the moving contact 200 on the external circuit of the relay 1000, in one embodiment of the present application, the material of the support member 3 is ceramic material. Compared with other materials, ceramic material has good insulation, which can isolate the arc in the accommodating cavity 31 to prevent the arc from transmitting outward, thereby reducing the impact of the arc on the external electrical of the relay 1000. At the same time, the ceramic material also has good high temperature resistance, which can effectively reduce the burns of the arc to the support member 3 and extend the service life of the relay 1000.

[0068] In one possible implementation mode of the present application, the support member 3 is connected to the fixing portion 22 of the wiring copper busbar 2, so as to improve the stability of the connection between the wiring copper busbar 2 and the static terminal, reduce the shaking amplitude of the wiring copper busbar 2 when it is shaken, and improve the earthquake resistance of the relay 1000.

[0069] Please refer to Figures 4 to 6In terms of structural combination, the contactor assembly 100 may be a copper busbar 2 that can be connected to a static contact 1 as an integral structure, or a copper busbar 2 that is connected to multiple static contacts 1 as an integral structure, and the present application does not limit this. In one embodiment of the present application, the relay 1000 includes two moving contacts 200 and two drive assemblies 300, the static contact 1 includes two first static contacts 11 and two second static contacts 12, the copper busbar 2 includes two first copper busbars 24 and one second copper busbar 25, the two first copper busbars 24 are respectively connected to the two first static contacts 11, and the two second static contacts 12 are spaced apart on the second copper busbar 25. The contactor assembly 100 includes two support members 3, each support member 3 includes a first mounting hole and a second mounting hole, the two first static contacts 11 are respectively connected to the two first mounting holes of the two support bodies, and the two second static contacts 12 are respectively arranged in the two second mounting holes of the two support bodies.

[0070] Please refer to Figure 6 In practical applications, when the current branch where the relay 1000 is located needs to be energized, the circuit board will control the coils 332 of the two drive components 300 to be energized, and the moving contact 200 will be attracted to the static contact 1 through the coil 332. At this time, the current will flow through the first copper bus 24a, the second static contact 12a, the moving contact 200a, the first static contact 11a, and the second copper bus 25. When the current reaches the second copper bus 25, part of the current will flow through the second copper bus 25 to other relays 1000 or other electrical equipment, and the other part of the current will flow through the first static contact 11b, the moving contact 200b, the second static contact 12b, and the first copper bus 24b, and finally reach the electrical equipment connected to the current branch. In this way, the current is split. In this embodiment, the contactors of the relay 1000 are directly connected to the static contact 1 by the copper busbar 2, which eliminates the need for third-party connectors, reduces the wiring cost of the relay 1000, and improves the wiring efficiency of the relay 1000. The height of the relay 1000 is reduced, the volume of the relay 1000 is reduced, and the space utilization rate of the relay 1000 for the electric control system is improved.

[0071] Please refer to Figure 2The contactor assembly 100 also includes a sampling plug 4, which is fixedly connected to the copper busbar 2. The sampling plug 4 adopts a magnetic or conductive structure. When the current of the battery reaches the sampling plug 4 through the copper busbar 2, the current flowing through the sampling plug 4 will generate a magnetic field or an electric field around the sampling plug 4, thereby inducing a corresponding electrical signal on the sampling plug 4. The electrical signal can be an electromotive force or a voltage. After special processing such as filtering, amplification or Fourier transformation, these electrical signals will be transmitted to the processor of the electric control system. By decoding these electrical signals, the processor can timely understand the current situation in the relay 1000, thereby issuing further instructions to the current branch where the relay 1000 is located.

[0072] Please refer to Figure 3 The sampling plug 4 includes a first plug part 41 and a second plug part 42. The first plug part 41 is fixedly connected to the copper busbar 2. One end of the second plug part 42 is connected to the first plug part 41, and the other end extends away from the copper busbar 2. The first plug part 41 and the second plug part 42 are bent, so as to improve the mechanical strength of the sampling plug 4 and extend the service life of the sampling plug 4. At the same time, the bending can also change the magnetic flux distribution of the sampling plug 4 in the space, so that the magnetic flux is more reasonably distributed in the space, thereby improving the sampling efficiency and stability of the sampling plug 4 for the current.

[0073] In one embodiment of the present application, along the length direction of the first inserting piece 41, the length of the first inserting piece 41 is greater than the length of the second inserting piece 42. In this way, the length of the first inserting piece 41 is increased to increase the contact area between the first inserting piece 41 and the copper busbar 2, thereby improving the stability of the connection between the first inserting piece 41 and the copper busbar 2.

[0074] The contactor assembly 100 includes a plurality of copper wiring bars 2 and a plurality of sampling plugs 4, and each sampling plug 4 is disposed on the copper wiring bar 2 in a one-to-one correspondence to collect current information of each copper wiring bar 2. In one embodiment of the present application, each sampling plug 4 is arranged along the same side of each copper wiring bar 2, so as to facilitate the circuit connection of the sampling plug 4, improve the wiring efficiency of the sampling plug 4, and reduce the maintenance cost of the sampling plug 4.

[0075] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0076] What is disclosed above is only a preferred embodiment of the present application, and it certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiment and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A contactor assembly, characterized in that: include: static contact; and A wiring copper bar, wherein the wiring copper bar and the static contact are connected to form an integrated structure; the integrated structure includes: the wiring copper bar and the static contact are welded, or the wiring copper bar and the static contact are integrally formed.

2. The contactor assembly according to claim 1, characterized in that The wiring copper bar comprises a first connecting portion and a fixing portion; the first connecting portion has a first surface and a second surface arranged opposite to each other, and the second surface is connected to the static contact; The fixing portion has a first end and a second end that are oppositely disposed, the first end is connected to the first connecting portion, and the second end extends in a direction from the first surface to the second surface.

3. The contactor assembly according to claim 2, characterized in that The wiring copper busbar further includes a second connecting portion, one end of which is connected to the second end, and the other end of which extends in a direction away from the static contact.

4. The contactor assembly according to claim 2, characterized in that The contactor assembly further comprises a support member, and the static contact is arranged on the support member; The fixing portion is connected to the supporting member.

5. The contactor assembly according to claim 4, characterized in that The static contacts include two first static contacts and two second static contacts; the wiring copper bar includes two first wiring copper bars and one second wiring copper bar; the two first wiring copper bars are respectively connected to the two first static contacts; the two second static contacts are arranged on the second wiring copper bar at intervals; The contactor assembly includes two support members, each of which includes a first mounting hole and a second mounting hole, the first mounting hole is used to accommodate the first static contact, and the second mounting hole is used to accommodate the second static contact.

6. The contactor assembly according to claim 1, characterized in that The contactor assembly further includes a sampling insert, and the sampling insert includes a first insert portion and a second insert portion; The first plug-in portion is fixedly connected to the wiring copper bar, and one end of the second plug-in portion is connected to the first plug-in portion, and the other end extends away from the wiring copper bar.

7. The contactor assembly according to claim 6, characterized in that Along the length direction of the first inserting piece portion, the length of the first inserting piece portion is greater than the length of the second inserting piece portion.

8. The contactor assembly according to claim 1, wherein: The contactor assembly comprises a plurality of sampling plugs, and each of the sampling plugs is arranged along the same side of the wiring copper busbar.

9. A relay, characterized in that: Comprising the contactor assembly according to any one of claims 1 to 8.

10. An electric control system, characterized in that: Comprising the relay as claimed in claim 9.

11. A vehicle, characterized in that: Comprising the electronic control system as claimed in claim 10.

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