Short circuit switch structure and short circuit test device

Abstract

The utility model discloses a short circuit switch structure and a short circuit test device. The short circuit switch structure comprises a main body support, a resistance device and a switch device. The resistance device is arranged on the main body bracket and comprises a plurality of copper plates; the switch device is arranged on the main body support and comprises a driving assembly, a main conduction block, a first auxiliary conduction block and a second auxiliary conduction block, the main conduction block is connected with the driving assembly, the first auxiliary conduction block is electrically conducted with at least one of the copper plates, and the second auxiliary conduction block is electrically conducted with at least one of the copper plates. The driving assembly is used for driving the main conduction block to be connected with the first auxiliary conduction block and the second auxiliary conduction block, and the second auxiliary conduction block is used for being communicated with a battery testing device. The short-circuit switch structure of the utility model can be moved to the side of the battery detection device as required, so as to enlarge the movement range of the short-circuit switch structure. In addition, the resistance device is composed of a plurality of copper plates, and a user can freely combine series-parallel connection modes of the plurality of copper plates according to needs so as to realize output of different resistance values.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a short - circuit switch structure and a short - circuit test device. Background Art

[0002] With the continuous consumption of fossil energy, new energy has begun to be gradually promoted. A relatively important medium in new energy is the storage battery, and a more common application scenario of the storage battery is electric vehicles. With the popularization of electric vehicles, battery safety has been mentioned more and more. In order to improve battery safety, it is necessary to conduct a short - circuit test on the battery. In the short - circuit test, it is necessary to adjust the resistance of the circuit according to different situations. The existing short - circuit equipment has a complex structure, complex resistance value adjustment, and cannot effectively reduce the resistance value. In addition, it is troublesome to transport and assemble. Summary of the Utility Model

[0003] An object of the utility model is to provide a short - circuit switch structure and a short - circuit test device, aiming to solve the technical problems of resistance value adjustment and troublesome transportation of the short - circuit switch structure.

[0004] To achieve the above object, a solution provided by the utility model is: a short - circuit switch structure, which includes a main body bracket, a resistance value device, and a switch device; the resistance value device is arranged on the main body bracket, and the resistance value device includes a plurality of copper plates; the switch device is arranged on the main body bracket, and the switch device includes a driving component, a main conduction block, a first sub - conduction block, and a second sub - conduction block. The main conduction block is connected to the driving component, the first sub - conduction block is electrically conducted with at least one of the plurality of copper plates, the driving component is used to drive the main conduction block to be connected to the first sub - conduction block and the second sub - conduction block respectively, and the second sub - conduction block is used to communicate with the battery test device.

[0005] Optionally, the driving component includes a base, a driving member, and a guiding mechanism. The base is arranged on the main body bracket, the driving member is connected to the base, the output end of the driving member is connected to the main conduction block, and the guiding mechanism is respectively connected to the base and the main conduction block. The driving member is used to drive the main conduction block to move under the guidance of the guiding mechanism.

[0006] Optionally, the driving component further includes an elastic member, and the elastic member is respectively connected to the base and the main conduction block. The elastic member is used to provide a force for the main conduction block to move away from the first sub - conduction block.

[0007] Optionally, the driving component further includes an adjusting rod, a first nut, and a second nut. The adjusting rod passes through the base, the first nut and the second nut are respectively threadedly connected to the adjusting rod, and the first nut and the second nut jointly clamp the base. The base is connected to the elastic member through the adjusting rod.

[0008] Optionally, the driving component further includes a self-locking member, which is slidably connected to the base. The self-locking member is used to insert into the output end of the driving member to prevent the movement of the output end of the driving member.

[0009] Optionally, the switching device further includes a vacuum box body and a pressure gauge. The vacuum box body is arranged on the main body bracket. The driving component, the main conduction block, the first sub-conduction block and the second sub-conduction block are all arranged in the vacuum box body. The pressure gauge is connected to the vacuum box body and is used to detect the air pressure in the vacuum box body.

[0010] Optionally, the resistance value device further includes a plurality of connecting blocks, a plurality of fasteners and a heat dissipation fan. The connecting blocks are U-shaped. The connecting blocks are detachably connected to two adjacent copper plates through the fasteners. The heat dissipation fan faces the plurality of copper plates.

[0011] Optionally, the short-circuit switch structure further includes a solenoid valve, a time relay and a receiver. The solenoid valve is connected to the driving component. The time relay and the receiver are respectively connected to the solenoid valve. The receiver is used to receive remote control signals.

[0012] Optionally, the short-circuit switch structure further includes a plurality of rollers, and the plurality of rollers are arranged on the main body bracket.

[0013] To achieve the above object, a solution provided by the present invention is: a short-circuit test device, which includes: a battery test device and the short-circuit switch structure as described in any one of the above. The battery test device is respectively communicated with the second sub-conduction block and the plurality of copper plates.

[0014] The beneficial effects of the present invention are as follows:

[0015] The tissue device and the switching device are both arranged on the main body bracket. Therefore, moving the main body bracket can transfer the short-circuit switch structure to the battery test device where the battery to be tested is installed and conduct electricity with the battery to be tested to complete the detection. Since there is a possibility of explosion and intense combustion during the detection process of the battery in the battery detection device, the battery detection device needs to be placed in a special safety house. Therefore, the short-circuit switch structure protected by this application can be integrally moved to the side of the battery detection device as needed to expand the activity range of the short-circuit switch structure. In addition, the resistance value device is composed of a plurality of copper plates. Users can freely combine the series and parallel connection methods between the plurality of copper plates according to needs to achieve different resistance value outputs. It can be understood that when the plurality of copper plates are connected in parallel, the resistance value output by the resistance value device is the smallest. For example, according to the number of copper plates, resistance values below 3mΩ, 2mΩ, etc. can be achieved. When the plurality of copper plates are connected in series, the resistance value output by the resistance value device is the largest. For example, according to the number of copper plates, resistance values above 5mΩ, 6mΩ, etc. can be achieved. In this way, the resistance value device can flexibly set the resistance value size according to the test needs. The series and parallel connection implementation methods between the plurality of copper plates can be achieved through switches or by changing the positions of the connecting blocks. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0017] Figure 1 It is a schematic structural diagram of a short-circuit test device provided by an embodiment of the present invention;

[0018] Figure 2 It is an external structural diagram of a short-circuit switch structure provided by an embodiment of the present invention;

[0019] Figure 3 It is an internal structural diagram of a short-circuit switch structure provided by an embodiment of the present invention;

[0020] Figure 4 It is a schematic structural diagram of a switch device provided by an embodiment of the present invention;

[0021] Figure 5 It is a schematic structural diagram of a switch device provided by an embodiment of the present invention;

[0022] Figure 6 It is a schematic structural diagram of a resistance value device provided by an embodiment of the present invention.

[0023] Explanation of the reference numerals in the drawings: Battery test device 200, short-circuit switch structure 100, main body bracket 10;

[0024] Resistance value device 20, copper plate 21, connecting block 22, fastener 23, heat dissipation fan 24;

[0025] Switch device 30, driving assembly 31, base 311, driving member 312, guiding mechanism 313;

[0026] Elastic member 314, adjusting rod 315, first nut 316, second nut 317, self-locking member 318;

[0027] Main conduction block 32, first sub-conduction block 33, second sub-conduction block 34, vacuum box body 35;

[0028] Barometer 36, solenoid valve 40, time relay 50, receiver 60, roller 70. Detailed Description of the Embodiments

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer to Figures 1 to 4 as shown in Figure 1 a structural schematic diagram of a short-circuit test device provided by an embodiment of the present utility model, Figure 2 an external structural schematic diagram of a short-circuit switch structure 100 provided by an embodiment of the present utility model, Figure 3 an internal structural schematic diagram of a short-circuit switch structure 100 provided by an embodiment of the present utility model, Figure 4 a structural schematic diagram of a switch device 30 provided by an embodiment of the present utility model.

[0031] The embodiment of the present utility model provides a short-circuit test device, which includes: a battery test device 200 and a short-circuit switch structure 100. The battery test device 200 and the short-circuit switch structure 100 are connected. The battery test device 200 is used to place a battery to be tested, and the short-circuit switch structure 100 is used to determine whether the battery to be tested is in an electrically conductive state or an electrically disconnected state.

[0032] Specifically, the short-circuit switch structure 100 includes a main body bracket 10, a resistance device 20, and a switch device 30. The main body bracket 10 is used to support each component in the short-circuit switch structure 100. The main body bracket 10 can be a frame-type structure or a solid base-type structure. The resistance device 20 is arranged on the main body bracket 10. The resistance device 20 includes a plurality of copper plates 21. The plurality of copper plates 21 can be connected in series or in parallel to form resistors of different sizes. The material of the copper plate 21 is copper, which has strong electrical conductivity and a resistivity smaller than that of aluminum and iron. Therefore, with the same volume, the resistance value of the copper plate 21 is smaller than theirs.

[0033] The switch device 30 is arranged on the main body bracket 10. The switch device 30 includes a driving component 31, a main conduction block 32, a first sub-conduction block 33 and a second sub-conduction block 34. The main conduction block 32 is in a block structure. The material of the main conduction block 32 can be copper, aluminum, etc. The main conduction block 32 can withstand a current of more than 3000A. The material of the first sub-conduction block 33 can be copper, aluminum, etc. The first sub-conduction block 33 can withstand a current of more than 3000A. The material of the second sub-conduction block 34 can be copper, aluminum, etc. The second sub-conduction block 34 can withstand a current of more than 3000A. The driving component 31 is connected to the main body bracket 10. The main conduction block 32 is connected to the driving component 31. The first sub-conduction block 33 is electrically connected to at least one of the multiple copper plates 21. The second sub-conduction block 34 is electrically connected to the battery testing device 200. The battery testing device 200 is in communication with the multiple copper plates 21. The driving component 31 is used to drive the main conduction block 32 to be connected to the first sub-conduction block 33 and the second sub-conduction block 34 respectively, so that the entire testing circuit is in an electrically conductive state.

[0034] In this embodiment, both the tissue device and the switch device 30 are arranged on the main body bracket 10. Therefore, moving the main body bracket 10 can transfer the short-circuit switch structure 100 to the battery testing device 200 where the battery to be tested is installed and be electrically conductive with the battery to be tested to complete the detection. Since there is a possibility of explosion and intense combustion during the detection of the battery in the battery testing device, the battery testing device needs to be placed in a special safety house. Therefore, the short-circuit switch structure 100 protected by this application can be integrally moved to the side of the battery testing device as needed to expand the movement range of the short-circuit switch structure 100. In addition, the resistance value device 20 is composed of multiple copper plates 21. Users can freely combine the series-parallel connection modes between the multiple copper plates 21 as needed to achieve different resistance value outputs. It can be understood that when the multiple copper plates 21 are connected in parallel, the resistance value output by the resistance value device 20 is the smallest. For example, according to the number of copper plates 21, resistance values below 3mΩ, 2mΩ, etc. can be achieved. When the multiple copper plates 21 are connected in series, the resistance value output by the resistance value device 20 is the largest. For example, according to the number of copper plates 21, resistance values above 5mΩ, 6mΩ, etc. can be achieved. In this way, the resistance value device 20 can flexibly set the resistance value size according to the test needs. The series-parallel connection implementation mode between the multiple copper plates 21 can be achieved through a switch or by changing the position of the connection block 22.

[0035] The short-circuit switch structure 100 further includes multiple rollers 70. The multiple rollers 70 are arranged on the main body bracket 10. The main body bracket 10 can move its position labor-saving and smoothly with the help of the multiple rollers 70.

[0036] Please refer to Figures 1 to 5 , Figure 5 which is a schematic structural diagram of the switch device provided by the embodiment of the present invention.

[0037] Furthermore, the driving assembly 31 includes a base 311, a driving member 312, and a guiding mechanism 313. The base 311 is disposed on the main body bracket 10. The driving member 312 is connected to the base 311. The driving member 312 can be a pneumatic component, a hydraulic component, or an electric component. The output end of the driving member 312 is connected to the main conduction block 32. The guiding mechanism 313 is respectively connected to the base 311 and the main conduction block 32. The guiding mechanism 313 can be composed of a slider and a track, or the guiding mechanism 313 can be a cooperation of a guiding column and a hole. The driving member 312 is used to drive the main conduction block 32 to move under the guidance of the guiding mechanism 313. The main conduction block 32 can move towards the first sub-conduction block 33 to be electrically connected thereto, or can move away from the first sub-conduction block 33 to disconnect from it. In this embodiment, by means of non-manual driving and with the assistance of the guiding mechanism 313, the main conduction block 32 is accurately connected to the first sub-conduction block 33 and the second sub-conduction block 34 respectively, and by means of non-manual driving and with the assistance of the guiding mechanism 313, the main conduction block 32 is disconnected from the first sub-conduction block 33 and the second sub-conduction block 34 respectively, thus avoiding the risk of electric shock to people.

[0038] The driving assembly 31 further includes an elastic member 314. The elastic member 314 can be a spring, or the elastic member 314 can also be a folded steel sheet, or the elastic member 314 can also be an elastic rope. The elastic member 314 is respectively connected to the base 311 and the main conduction block 32. The elastic member 314 is used to provide a force for the main conduction block 32 to move away from the first sub-conduction block 33. The elastic member 314 can be connected to the end of the base 311 away from the first sub-conduction block 33. At this time, the elastic member 314 provides a tensile elastic force for the main conduction block 32. The elastic member 314 can be connected to the end of the base 311 close to the first sub-conduction block 33. At this time, the elastic member 314 provides a compressive elastic force for the main conduction block 32. In special cases, after the driving member 312 fails due to a fault and the driving member 312 cannot bear the weight of the main conduction block 32, the main conduction block 32 will drop by its own gravity and be connected to the first sub-conduction block 33 and the second sub-conduction block 34 respectively, thus causing a short-circuit electric shock accident. In this embodiment, by providing the elastic member 314 to hold the main conduction block 32 on the base 311, even if the driving member 312 fails, the elastic force of the elastic member 314 can still support the main conduction block 32 from dropping. In addition, during the process of disconnecting the connection between the main conduction block 32 and the first sub-conduction block 33 and the second sub-conduction block 34 respectively, the elastic force of the elastic member 314 can assist the driving member 312 to quickly disconnect their connection.

[0039] The number of the elastic members 314 can be one, or two, or three, etc. The number of the elastic members 314 is such that its elastic force can just hold up the main conduction block 32 without contacting the first sub-conduction block 33. Of course, it is also possible to be slightly greater than the weight of the main conduction block 32.

[0040] The driving assembly 31 further includes an adjusting rod 315, a first nut 316, and a second nut 317. The adjusting rod 315 passes through the base 311. The first nut 316 and the second nut 317 are respectively threadedly connected to the adjusting rod 315, and the first nut 316 and the second nut 317 jointly clamp the base 311. The base 311 is connected to the elastic member 314 through the adjusting rod 315. When the driving member 312 is connected to the main conduction block 32 and adjusted, it is necessary to adjust the position of the elastic member 314 to support the main conduction block 32. At this time, only need to rotate the first nut 316 and the second nut 317 respectively to make the first nut 316 and the second nut 317 move away from each other. The first nut 316 and the second nut 317 are respectively not in contact with the base 311. Pull the adjusting rod 315 to drive the elastic member 314 to move up or down. After adjustment, only need to rotate the first nut 316 and the second nut 317 respectively to make the first nut 316 and the second nut 317 move towards each other. The first nut 316 and the second nut 317 are respectively in contact with the base 311, so as to fix the adjusting rod 315. In this embodiment, by the way that the first nut 316 and the second nut 317 are respectively in threaded cooperation with the adjusting rod 315, the position of the adjusting rod 315 is accurately changed according to the pitch. In addition, the threaded cooperation method is a mechanical connection method, and there is no situation of failure, which can ensure to the greatest extent that the main conduction block 32 does not fall.

[0041] The driving assembly 31 further includes a self-locking member 318. The self-locking member 318 is slidably connected to the base 311. The self-locking member 318 is used to insert into the output end of the driving member 312 to prevent the output end of the driving member 312 from moving. The sliding direction of the self-locking member 318 relative to the base 311 and the moving direction of the output end of the driving member 312 can be perpendicular to each other or approximately perpendicular to each other. When the short-circuit switch structure 100 is not in use or stored, the self-locking member 318 can be slid towards the output end of the driving member 312 and be in rigid contact with the output end of the driving member 312 to completely limit the movement of the output end of the driving member 312. In this embodiment, through the rigid limit between the self-locking member 318 and the output end of the driving member 312, it can absolutely prevent the phenomenon that the driving member 312 is wrongly activated or fails and drives the main conduction block 32 to move.

[0042] In other embodiments, the self-locking member 318 can also be slid and inserted under the bottom of the main conduction block 32 to support the main conduction block 32, so as to achieve the purpose of self-locking.

[0043] The switching device 30 further includes a vacuum chamber 35 and a barometer 36. The vacuum chamber 35 is disposed on the main body bracket 10. The driving assembly 31, the main conduction block 32, the first sub-conduction block 33, and the second sub-conduction block 34 are all disposed in the vacuum chamber 35. The barometer 36 is connected to the vacuum chamber 35 and is used to detect the air pressure in the vacuum chamber 35. The vacuum chamber 35 is a completely sealed environment. Before testing, the air in the vacuum chamber 35 needs to be completely pumped out until a completely vacuum state is observed through the barometer 36. During operation, when the main conduction block 32 contacts the first sub-conduction block 33 and the second sub-conduction block 34 respectively, a huge current will be generated to form a huge amount of heat. In a vacuum environment, oxidizing gases such as oxygen are completely excluded, so that the oxidation of the main conduction block 32, the first sub-conduction block 33, and the second sub-conduction block 34 can be effectively avoided, and the conductivity will not be reduced. Of course, after the test is completed, the vacuum chamber 35 still needs to be kept in a vacuum state until the temperatures of the main conduction block 32, the first sub-conduction block 33, and the second sub-conduction block 34 are reduced to room temperature to prevent oxidation caused by preheating.

[0044] Please refer to Figure 6 , Figure 6 which is a schematic structural diagram of the resistance value device provided by an embodiment of the present invention.

[0045] The resistance value device 20 further includes a plurality of U-shaped connection blocks, a plurality of fasteners 23, and a cooling fan 24. The connection block 22 is U-shaped. A plurality of copper plates 21 are arranged at intervals. The connection block 22 is detachably connected to two adjacent copper plates 21 through the fasteners 23. Channels are formed on two adjacent copper plates 21. The cooling fan 24 faces the plurality of copper plates 21. Before the test, according to the resistance value requirement of the test battery for the resistance value device 20, the number and positions of the connection blocks 22 are reasonably set to connect a plurality of copper plates 21 in series, in parallel, or in series-parallel. The fasteners 23 can be screws or rivets, and the connection is stable and reliable. When disassembling the fasteners 23, professional tools can also be used for quick disassembly. During the test, the cooling fan 24 is started to blow air towards the plurality of copper plates 21 or suck air from the plurality of copper plates 21 to accelerate the air flow. The air flows in the channels between the copper plates 21, thereby taking away the heat to achieve a cooling effect and slowing down the oxidation rate of the copper plates 21.

[0046] The short - circuit switch structure 100 further includes a solenoid valve 40, a time relay 50, and a receiver 60. The solenoid valve 40 is connected to the driving assembly 31, and the time relay 50 and the receiver 60 are respectively connected to the solenoid valve 40. The receiver 60 is used to receive remote control signals. The solenoid valve 40 is used to control the movement direction of the output end of the driving member 312 in the driving assembly 31, that is, whether the output end of the driving member 312 moves forward or backward. The time relay 50 is used to control the time when the solenoid valve 40 is in a certain state to accurately control the test time of the battery under test. The receiver 60 is used to receive external instructions and convert the external instructions into control instructions to control the operation of the solenoid valve.

[0047] The solenoid valve 40 is an industrial device controlled by electricity magnetism. It is a basic automation component used to control fluids and belongs to an actuator, not limited to hydraulic or pneumatic applications. It is used in industrial control systems to adjust parameters such as the direction, flow rate, speed, and other parameters of the medium. The solenoid valve 40 can cooperate with different circuits to achieve the expected control, and both the control accuracy and flexibility can be guaranteed. There are many types of solenoid valves 40, and different solenoid valves 40 play roles in different positions of the control system. The most commonly used ones are check valves, safety valves, direction control valves, speed regulating valves, etc.

[0048] The time relay 50 is a very important component in the electrical control system. In many control systems, the time relay 50 is required to achieve delay control. The time relay 50 is an automatic control electrical appliance that uses the electromagnetic principle or mechanical action principle to delay the closing or opening of the contact. Its characteristic is that there is a time delay from when the attracting coil receives the signal to when the contact operates. The time relay 50 is generally used for the control of the motor starting process as a function of time.

[0049] In this embodiment, the user can remotely send a start instruction or a stop instruction to the receiver 60. After receiving the start instruction or the stop instruction, the receiver 60 immediately converts it into a corresponding control instruction to control the operation of the solenoid valve, so that the output end of the driving member 312 moves forward or backward. During the entire test process, the staff can avoid contacting or approaching the short - circuit test device, thus ensuring the absolute safety of the staff.

[0050] It should be noted that all directional indicators (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture. If this specific posture changes, then the directional indicators will also change accordingly.

[0051] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element present simultaneously. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or can also be indirectly connected to the other element through an intermediate element.

[0052] In addition, in the present utility model, the descriptions involving "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Additionally, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0053] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or any direct / indirect application in other related technical fields is included within the patent protection scope of the present utility model.

Claims

1. A short-circuit switch structure, characterized in that, Comprising: Main body bracket; Resistance value device, arranged on the main body bracket, the resistance value device comprising a plurality of copper plates; And Switch device, arranged on the main body bracket, the switch device comprising a driving component, a main conduction block, a first sub-conduction block and a second sub-conduction block, the main conduction block being connected to the driving component, the first sub-conduction block being electrically connected to at least one of the plurality of copper plates, the driving component being configured to drive the main conduction block to be respectively connected to the first sub-conduction block and the second sub-conduction block, and the second sub-conduction block being configured to communicate with a battery testing device.

2. The short-circuit switch structure according to claim 1, wherein, The driving component comprises a base, a driving member and a guiding mechanism, the base being arranged on the main body bracket, the driving member being connected to the base, an output end of the driving member being connected to the main conduction block, the guiding mechanism being respectively connected to the base and the main conduction block, and the driving member being configured to drive the main conduction block to move under the guidance of the guiding mechanism.

3. The short-circuit switch structure according to claim 2, wherein, The driving component further comprises an elastic member, the elastic member being respectively connected to the base and the main conduction block, and the elastic member being configured to provide a force for the main conduction block to move away from the first sub-conduction block.

4. The short-circuit switch structure according to claim 3, characterized in that The driving component further comprises an adjusting rod, a first nut and a second nut, the adjusting rod passing through the base, the first nut and the second nut being respectively threadedly connected to the adjusting rod, and the first nut and the second nut jointly clamping the base, and the base being connected to the elastic member through the adjusting rod.

5. The short-circuit switch structure according to claim 2, characterized in that, The driving component further comprises a self-locking member, the self-locking member being slidably connected to the base, and the self-locking member being configured to be inserted into an output end of the driving member to prevent the output end of the driving member from moving.

6. The short-circuit switch structure according to claim 1, characterized in that, The switch device further comprises a vacuum box body and a pressure gauge, the vacuum box body being arranged on the main body bracket, the driving component, the main conduction block, the first sub-conduction block and the second sub-conduction block all being arranged in the vacuum box body, the pressure gauge being connected to the vacuum box body, and the pressure gauge being configured to detect the air pressure in the vacuum box body.

7. The short-circuit switch structure according to claim 1, characterized in that, The resistance value device further comprises a plurality of connecting blocks, a plurality of fasteners and a heat dissipation fan, the connecting blocks being U-shaped, the connecting blocks being detachably connected to two adjacent copper plates through the fasteners, and the heat dissipation fan facing the plurality of copper plates.

8. The short-circuit switch structure according to claim 1, characterized in that, The short-circuit switch structure further comprises a solenoid valve, a time relay and a receiver, the solenoid valve being connected to the driving component, the time relay and the receiver being respectively connected to the solenoid valve, and the receiver being configured to receive a remote control signal.

9. The short-circuit switch structure according to claim 1, characterized in that, The short-circuit switch structure further comprises a plurality of rollers, the plurality of rollers being arranged on the main body bracket.

10. A short-circuit test device, characterized in that, The short-circuit testing device comprises: a battery testing device and the short-circuit switch structure according to any one of claims 1 to 9, the battery testing device being respectively communicated with the second sub-conduction block and the plurality of copper plates.

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