Short circuit testing device

Abstract

The invention provides a short circuit test device. The short circuit test device comprises a shell, a mounting assembly, a first elastic piece and a wiring assembly, the shell comprises a base. The mounting assembly comprises a first mounting part and a second mounting part, the first mounting part and the second mounting part are located on the same side of the base and arranged in the first direction, the first mounting part is fixed to the base, and the second mounting part is movably arranged on the base. And the first elastic piece is connected with the first mounting piece and the second mounting piece. The wiring assembly comprises a first metal piece and a second metal piece, the first metal piece is fixed to the first installation piece, and the second metal piece is fixed to the second installation piece. The first metal piece and the second metal piece are used for being electrically connected with a positive terminal and a negative terminal of the battery module respectively, and the second mounting piece is configured to move towards or away from the first mounting piece in the first direction, so that the second metal piece is in contact with or separated from the first metal piece.

Description

Technical Field

[0001] This application relates to the technical field of short - circuit detection of battery modules, and particularly to a short - circuit test device. Background Art

[0002] In recent years, with the popularization of lithium - ion batteries, the lithium - ion battery industry has witnessed even faster development. Since lithium - ion batteries may explode and catch fire under over - charge and short - circuit conditions, it is necessary to add a Battery Management System (BMS) to protect lithium - ion batteries. Currently, the short - circuit protection test of the battery management system of lithium - ion batteries is carried out by directly short - circuiting manually. The direct manual short - circuit is achieved by manually closing a circuit breaker. However, the speed and force of manually closing the circuit breaker are not uniform, resulting in different short - circuit current waveforms in the test, thus affecting the consistency of the test results; and there will be a short - circuit sparking phenomenon at the moment of manually closing the circuit breaker, which poses a certain safety risk. Summary of the Invention

[0003] In view of this, this application provides a short - circuit test device that can improve the safety and reliability of the test.

[0004] An embodiment of this application provides a short - circuit test device, including a housing, a mounting component, a first elastic member, and a wiring component. The housing includes a base. The mounting component includes a first mounting member and a second mounting member. The first mounting member and the second mounting member are located on the same side of the base and are arranged along a first direction. The first mounting member is fixed to the base, and the second mounting member is movably disposed on the base. The first elastic member is connected to the first mounting member and the second mounting member. The wiring component includes a first metal member and a second metal member. The first metal member is fixed to the first mounting member, and the second metal member is fixed to the second mounting member. The first metal member and the second metal member are used to electrically connect the positive terminal and the negative terminal of the battery module respectively. The second mounting member is configured to move toward or away from the first mounting member along the first direction, so that the second metal member contacts or separates from the first metal member.

[0005] The short - circuit test device of this application uses the elastic force of the first elastic member to drive the second mounting member to move toward the first mounting member, making the first metal member contact the second metal member, and then short - circuiting the battery module for a short - circuit test. The speed and force of the short - circuit depend on the elastic force of the first elastic member, without the need for manual operation, which improves the safety and reliability of the test.

[0006] In some embodiments, the first metal part includes a first main body portion and a first contact portion. The first contact portion is detachably provided on the first main body portion and protrudes from the first main body portion toward the second metal part. The second metal part includes a second main body portion and a second contact portion. The second contact portion is detachably provided on the second main body portion and protrudes from the second main body portion toward the first metal part. The second contact portion is used to contact the first contact portion. By providing the first contact portion and the second contact portion, when the first metal part and the second metal part collide and wear, affecting the contact short circuit, only the contact portions can be replaced instead of the entire metal parts, which is beneficial to reducing costs.

[0007] In some embodiments, the wiring assembly includes a third metal part and a wire. The third metal part is fixed to the base and is used for electrically connecting the positive terminal or the negative terminal. The third metal part is electrically connected to the second metal part through the wire. By providing the third metal part, the wire connecting the second metal part and the electrode terminal is fixed relative to the second metal part and does not move with the second metal part, which is beneficial to improving the test stability.

[0008] In some embodiments, the second mounting member is provided with an avoidance hole, and the third metal part is located in the avoidance hole. By arranging the third metal part in the avoidance hole, the third metal part and the second mounting member share the space, which is beneficial to reducing the volume of the short-circuit test device.

[0009] In some embodiments, the first metal part, the second metal part, and the third metal part are arranged in sequence along the first direction, so that the third metal part occupies the moving space of the second mounting member in the first direction, which is beneficial to the miniaturization of the short-circuit test device.

[0010] In some embodiments, the first mounting member is provided with a plurality of first mounting holes arranged along the first direction, and the second mounting member is provided with a plurality of second mounting holes arranged along the first direction. One end of the first elastic member is connected to the first mounting hole, and the other end of the first elastic member is connected to the second mounting hole. By providing a plurality of first mounting holes and a plurality of second mounting holes, the first elastic member can be selectively connected to different first mounting holes and different second mounting holes, and the elastic restoring force of the first elastic member can be changed. Furthermore, the speed and force of the contact short circuit between the first metal part and the second metal part can be changed.

[0011] In some embodiments, a clamping groove is provided at the edge of the second mounting member. The short-circuit test device includes a locking member provided on the base. The locking member is located on the side of the second mounting member where the clamping groove is provided and is used for engaging with the clamping groove. By providing the locking member, the first metal part and the second metal part can be kept in a separated state when the short-circuit test device is not in use, which is beneficial to improving the safety performance.

[0012] In some embodiments, the locking fastener includes a base, a buckle, and a second elastic member; the base is fixed to the base seat, the buckle is rotatably arranged on the base, the second elastic member is connected between the base and the buckle, and one end of the buckle elastically presses against the surface of the second mounting member facing away from the base seat and is used for engaging with the card slot.

[0013] In some embodiments, the base seat is provided with a guide rail, and the second mounting member is arranged on the guide rail.

[0014] In some embodiments, the housing includes a top wall, a first side wall, a second side wall, a third side wall, and a fourth side wall; the first side wall and the second side wall are oppositely arranged along a first direction, and the third side wall and the fourth side wall are oppositely arranged along a second direction perpendicular to the first direction; the first side wall, the second side wall, the third side wall, the fourth side wall, and the base seat enclose to form a receiving cavity, the wiring assembly is located in the receiving cavity, and the top wall is movably connected to the fourth side wall and covers the receiving cavity; the first side wall is provided with a through hole, and the second mounting member passes through the through hole and partially extends out of the housing.

[0015] In some embodiments, the third side wall includes a first through hole and a second through hole arranged at intervals, and the first through hole and the second through hole are configured such that: a first wire passes through the first through hole to connect to a first metal member, and a second wire passes through the second through hole to connect to a second metal member. The first wire and the second wire are respectively used for electrically connecting the positive terminal and the negative terminal of the battery module. Description of the Drawings

[0016] Figure 1 Schematic structural diagram of a short-circuit test device provided by an embodiment of the present application.

[0017] Figure 2 Schematic structural diagram of another perspective of a short-circuit test device provided by an embodiment of the present application.

[0018] Figure 3 [[ID=2,3]]Schematic diagram of the short-circuit test device provided by an embodiment of the present application after the top wall is opened.

[0019] Figure 4 Partial exploded schematic diagram of a short-circuit test device provided by an embodiment of the present application.

[0020] Figure 5 Schematic diagram of the separation of the buckle and the card slot after removing a part of the housing of a short-circuit test device provided by an embodiment of the present application.

[0021] Figure 6 Schematic diagram of the engagement of the buckle and the card slot after removing a part of the housing of a short-circuit test device provided by an embodiment of the present application.

[0022] Description of the Main Component Symbols

[0023] Short-circuit test device 100

[0024] Housing 1...

[0025] Base 11

[0026] Guide rail 111

[0027] Installation groove 112

[0028] Top wall 12

[0029] First side wall 13

[0030] Perforation 131

[0031] Second side wall 14

[0032] Third side wall 15

[0033] First through hole 151

[0034] Second through hole 152

[0035] Fourth side wall 16

[0036] Opening 161

[0037] Receiving cavity 101

[0038] Hinge 17

[0039] First hook 181

[0040] Second hook 182

[0041] Installation component 20

[0042] First mounting part 21

[0043] First mounting hole 211

[0044] Second mounting part 22

[0045] Avoidance hole 221

[0046] Slider 222

[0047] Card slot 223

[0048] Second mounting hole 224

[0049] Grip hole 225

[0050] Wiring component 30

[0051] First metal part 31

[0052] First main body part 311

[0053] First receiving groove 3111

[0054] First contact part 312

[0055] The second metal part 32

[0056] The second main body part 321

[0057] The second receiving groove 3211

[0058] The second contact part 322

[0059] The first wire 33

[0060] The second wire 34

[0061] The third metal part 35

[0062] The wire 36

[0063] The first elastic part 40

[0064] The locking part 50

[0065] The base 51

[0066] The protruding part 511

[0067] The mounting part 512

[0068] The receiving groove 513

[0069] The buckle 52

[0070] The buckling part 521

[0071] The connecting part 522

[0072] The pressing part 523

[0073] The second elastic part 53

[0074] The rotating shaft 54

[0075] The first mounting post 61

[0076] The second mounting post 62

[0077] The first direction X

[0078] The second direction Y

[0079] The following specific embodiments will further illustrate the present application in conjunction with the above-mentioned drawings. Specific embodiments

[0080] Next, the technical solutions in the embodiments of the present application will be described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0081] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component present at the same time. When two components or members are "electrically connected", it can be considered that the electrical conduction is achieved by the two components directly contacting, welding, bonding, etc. The term "and / or" includes any and all combinations of one or more of the related listed items.

[0082] The term "vertical" is used to describe the ideal state between two components. In actual production or use, there may be a state approximately vertical between two components. For example, in combination with numerical description, vertical can refer to the included angle range between two straight lines being between 90° ± 10°, vertical can also refer to the dihedral angle range between two planes being between 90° ± 10°, and vertical can also refer to the included angle range between a straight line and a plane being between 90° ± 10°. The two components described as "vertical" may not be absolutely straight lines or planes, and may also be approximately straight lines or planes. From a macroscopic perspective, as long as the overall extension direction is a straight line or a plane, the components can be considered as "straight lines" or "planes".

[0083] It should be noted that when a certain parameter is greater than, equal to, or less than a certain endpoint value, it should be understood that the endpoint value allows a tolerance of ±10%. For example, if A is greater than B by 10, it should be understood to include the case where A is greater than B by 9 and also the case where A is greater than B by 11.

[0084] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0085] Next, some embodiments of this application will be described in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0086] Please refer to Figure 1 and Figure 5, an embodiment of the present application provides a short - circuit test device 100, including a housing 10, a mounting assembly 20, a wiring assembly 30, and a first elastic member 40. The housing 10 includes a base 11, and the base 11 is used to support the mounting assembly 20. The mounting assembly 20 includes a first mounting member 21 and a second mounting member 22. The first mounting member 21 and the second mounting member 22 are located on the same side of the base 11 and are arranged along the first direction X. The first mounting member 21 is fixed to the base 11, and the second mounting member 22 is movably disposed on the base 11. The wiring assembly 30 includes a first metal member 31 and a second metal member 32. The first metal member 31 is fixed to the first mounting member 21, and the second metal member 32 is fixed to the second mounting member 22. The first metal member 31 and the second metal member 32 are used to electrically connect the positive terminal and the negative terminal of a battery module (not shown) respectively. The second mounting member 22 is configured to move toward or away from the first mounting member 21 along the first direction X, so that the second metal member 32 contacts or separates from the first metal member 31. The first elastic member 40 is connected to the first mounting member 21 and the second mounting member 22, and the first elastic member 40 is used to provide an elastic restoring force to move the second mounting member 22 toward the first mounting member 21.

[0087] When using the short - circuit test device 100 to perform a short - circuit test, the user moves the second mounting member 22 to separate the second metal member 32 from the first metal member 31, then connects the first metal member 31 and the second metal member 32 to the positive terminal and the negative terminal of the battery module respectively, and then releases the second mounting member 22 so that the second mounting member 22 moves toward the first mounting member 21 under the elastic restoring force of the first elastic member 40 until the second metal member 32 contacts the first metal member 31 to perform a short - circuit test on the battery management system of the battery module. In the present application, the elastic force of the first elastic member 40 is used to drive the second mounting member 22 to move toward the first mounting member 21 to make the first metal member 31 contact the second metal member 32, thereby short - circuiting the battery module. The short - circuit test of the battery module is realized by releasing the first elastic member 40 to electrically connect the positive terminal and the negative terminal of the battery module, which improves the safety and reliability of the test.

[0088] In some embodiments, please refer to Figure 4 and Figure 5, the first mounting member 21 is provided with a plurality of first mounting holes 211 arranged along the first direction X, and the second mounting member 22 is provided with a plurality of second mounting holes 224 arranged along the first direction X. The short - circuit testing device 100 includes at least one first mounting post 61 and at least one second mounting post 62. The first mounting post 61 is partially located in the first mounting hole 211 and extends outside the first mounting member 21, and the second mounting post 62 is partially located in the second mounting hole 224 and extends outside the second mounting member 22. One end of the first elastic member 40 is connected to the first mounting post 61, and the other end of the first elastic member 40 is connected to the second mounting post 62. By providing a plurality of first mounting holes 211 and a plurality of second mounting holes 224, the first elastic member 40 can be selectively connected to different first mounting holes 211 and different second mounting holes 224 to change the elastic restoring force of the first elastic member 40, thereby changing the speed and strength of the contact short - circuit between the first metal member 31 and the second metal member 32.

[0089] In some embodiments, refer to Figure 1 and Figure 3 , the housing 10 includes a top wall 12, a first side wall 13, a second side wall 14, a third side wall 15, and a fourth side wall 16. The first side wall 13 and the second side wall 14 are fixed to the base 11 and are disposed opposite to each other along the first direction X. The third side wall 15 and the fourth side wall 16 are fixed to the base 11 and are disposed opposite to each other along a second direction Y perpendicular to the first direction X. The third side wall 15 and the fourth side wall 16 are respectively connected to the first side wall 13 and the second side wall 14. The base 11, the first side wall 13, the second side wall 14, the third side wall 15, and the fourth side wall 16 enclose to form a receiving cavity 101, and the top wall 12 is movably connected to the third side wall 15 and covers the receiving cavity 101. The first mounting member 21, the wiring assembly 30, and the first elastic member 40 are located in the receiving cavity 101. The first side wall 13 is provided with a through - hole 131. The second mounting member 22 is partially located in the receiving cavity 101 and passes through the through - hole 131 and extends outside the housing 10. Disposing the wiring assembly 30 inside the housing 10 is beneficial to improving the safety of the test.

[0090] In some embodiments, refer to [[ID=u11]] Figure 1 , a part of the second mounting member 22 is located outside the receiving cavity 101, and the part located outside the receiving cavity 101 is provided with a holding hole 225. The holding hole 225 is located outside the housing 10 and is used for the user to hold.

[0091] [[ID=u15]]In some embodiments, refer to Figure 2 , the housing 10 includes a hinge 17, and the top wall 12 is movably connected to the third side wall 15 through the hinge 17. Specifically, opposite ends of the hinge 17 are respectively fixed to the top wall 12 and the third side wall 15. In another embodiment, the top wall 12 is movably connected to the third side wall 15 through a hinge.

[0092] In some embodiments, refer to Figure 1 andFigure 3 The housing 10 includes a first hook 181 and a second hook 182. The first hook 181 is fixed to the top wall 12, and the second hook 182 is fixed to the fourth side wall 16 and is used for engaging with the first hook 181. When the first hook 181 is engaged with the second hook 182, the top wall 12 is fixed relative to the fourth side wall 16, which is beneficial to improving the test safety.

[0093] In some embodiments, the housing 10 is made of an insulating material, such as plastic. The housing 10 being made of an insulating material improves the test safety. In some embodiments, the base 11 is made of a material with good insulating properties to further improve the test safety. For example, the base 11 is made of bakelite.

[0094] In some embodiments, the mounting assembly 20 is made of an insulating material, such as plastic. Making the mounting assembly 20 of an insulating material insulates the first metal member 31 and the second metal member 32 from the housing 10, which can improve the test safety. In some embodiments, the mounting assembly 20 is made of a material with good insulating properties to further improve the test safety. For example, the mounting assembly 20 can be made of bakelite.

[0095] In some embodiments, the top wall 12, the first side wall 13, the second side wall 14, the third side wall 15, and the fourth side wall 16 are transparent, so as to facilitate the user to observe the situation inside the accommodation cavity 101 from the outside of the housing 10. For example, the top wall 12, the first side wall 13, the second side wall 14, the third side wall 15, and the fourth side wall 16 are made of acrylic boards.

[0096] In some embodiments, please refer to Figure 2 The third side wall 15 includes a first through hole 151 and a second through hole 152 which are spaced apart. Please refer to Figure 5 One end of the first wire 33 and one end of the second wire 34 are respectively electrically connected to the positive terminal and the negative terminal of the battery module. The first wire 33 and the second wire 34 respectively pass through the first through hole 151 and the second through hole 152, and are respectively connected to the first metal member 31 and the second metal member 32.

[0097] In some embodiments, please refer to Figure 5, the wiring assembly 30 includes a third metal part 35 and a wire 36. The third metal part 35 is fixed to the base 11 and is electrically connected to the second metal part 32 through the wire 36. The third metal part 35 is used to electrically connect to the positive terminal or negative terminal of the battery module through the second wire 34. By providing the third metal part 35, the second wire 34 is fixed relative to the second metal part 32 and does not move with the second metal part 32, reducing the risk of poor contact with the battery module caused by the second wire 34, which is beneficial to improving the test stability. The wire 36 can be a soft silicone wire, which is beneficial to the free movement of the second metal part 32 without being affected by the wire 36. In some embodiments, the wire 36 is fixed to the second metal part 32 and the third metal part 35 by screws.

[0098] In some embodiments, the first metal part 31, the second metal part 32, and the third metal part 35 are all provided with insertion holes, and the first wire 33, the second wire 34, and the wire 36 are inserted into the corresponding insertion holes to be connected to the corresponding metal parts. In some embodiments, the first wire 33, the second wire 34, and the wire 36 are connected to the corresponding metal parts by means of gluing or the like.

[0099] In some embodiments, please refer to Figure 4 and Figure 5 , the second mounting part 22 is provided with an avoidance hole 221, and the third metal part 35 is located in the avoidance hole 221. The avoidance hole 221 has a suitable size such that when the second mounting part 22 moves along the first direction X, the third metal part 35 moves relative to the second mounting part 22 within the avoidance hole 221. By disposing the third metal part 35 in the avoidance hole 221, the third metal part 35 shares the space with the second mounting part 22, which is beneficial to reducing the volume of the short-circuit test device 100.

[0100] In some embodiments, please refer to Figure 5 , the first metal part 31, the second metal part 32, and the third metal part 35 are arranged in sequence along the first direction X, enabling the third metal part 35 to utilize the moving space of the second mounting part 22 in the first direction X, which is beneficial to the miniaturization of the short-circuit test device 100.

[0101] In some embodiments, please refer to Figure 4 , the base 11 is provided with a guide rail 111, and the second mounting part 22 is slidably disposed on the guide rail 111. The guide rail 111 is fixed to the base 11 and extends along the first direction X, for guiding the movement of the second mounting part 22, reducing the risk that the second metal part 32 deviates from the first metal part 31 and cannot make contact after moving. In some embodiments, the second mounting part 22 is provided with a slider 222, and the slider 222 is slidably connected to the guide rail 111.

[0102] In some embodiments, please refer to Figure 4, the base 11 is provided with an installation groove 112. The guide rail 111 and the slider 222 are located in the installation groove 112, and the second installation member 22 is located above the base 11. By arranging the guide rail 111 and the slider 222 in the installation groove 112, it is beneficial to reduce the volume of the short-circuit test device 100.

[0103] In some embodiments, please refer to Figure 4 , the first metal part 31 includes a first main body part 311 and a first contact part 312. The first contact part 312 is detachably arranged on the first main body part 311 and protrudes from the first main body part 311 towards the second metal part 32. The first contact part 312 is used to contact the second metal part 32. Specifically, the first main body part 311 is provided with a first accommodation groove 3111 at the edge close to the second metal part 32 in the first direction X. The first contact part 312 is partially accommodated in the first accommodation groove 3111 and protrudes from the first main body part 311 towards the second metal part 32. In some embodiments, the first contact part 312 is detachably connected to the first main body part 311 by screws. When the first contact part 312 collides and wears with the second metal part 32, affecting the contact short circuit, the first contact part 312 can be replaced instead of the entire first metal part 31, which is beneficial to reducing costs. The first contact part 312 can be circular, square, etc., and this application does not make restrictions.

[0104] In some embodiments, please refer to Figure 4 , the second metal part 32 includes a second main body part 321 and a second contact part 322. The second contact part 322 is detachably arranged on the second main body part 321 and protrudes from the second main body part 321 towards the first metal part 31. The second contact part 322 is used to contact the first contact part 312. Specifically, the second main body part 321 is provided with a second accommodation groove 3211 at the edge close to the first metal part 31 in the first direction X. The second contact part 322 is partially accommodated in the second accommodation groove 3211 and protrudes from the second main body part 321 towards the first metal part 31. In some embodiments, the second contact part 322 is detachably connected to the second main body part 321 by screws. When the second contact part 322 collides and wears with the first contact part 312, affecting the contact short circuit, the second contact part 322 can be replaced instead of the entire second metal part 32, which is beneficial to reducing costs. The second contact part 322 can be circular, square, etc., and this application does not make restrictions.

[0105] In some embodiments, both the first metal part 31 and the second metal part 32 are copper, and copper has a high conductivity and a low internal resistance. In some embodiments, the surfaces of the first metal part 31 and the second metal part 32 have gold plating layers to prevent the oxidation of the metal parts from affecting the conductivity.

[0106] In some embodiments, please refer to Figure 5 and Figure 6, a clamping groove 223 is provided at the edge of the second mounting member 22. The short - circuit test device 100 includes a locking member 50 provided on the base 11. The locking member 50 is located on the side of the second mounting member 22 where the clamping groove 223 is provided and is used for clamping with the clamping groove 223. When the locking member 50 is disengaged from the clamping groove 223, the first metal member 31 can contact the second metal member 32; when the locking member 50 is clamped in the clamping groove 223, the first metal member 31 is separated from the second metal member 32. By providing the locking member 50 and the clamping groove 224, the first metal member 31 and the second metal member 32 are kept separated when the short - circuit test device 100 is not in use, which is beneficial to improving the safety performance.

[0107] In some embodiments, refer to Figure 4 , Figure 5 and Figure 6 , the locking member 50 includes a base portion 51, a buckle 52 and a second elastic member 53. The base portion 51 is fixed to the base 11, the buckle 52 is rotatably provided on the base portion 51, the second elastic member 53 is connected between the base portion 51 and the buckle 52, and one end of the buckle 52 elastically presses against the surface of the second mounting member 22 facing away from the base 11 and is used for clamping with the clamping groove 223. When the second mounting member 22 moves away from the first mounting member 21 along the first direction X, the buckle 52 moves towards the first mounting member 21 relative to the second mounting member 22 until the buckle 52 is clamped with the clamping groove 223. When the buckle 52 is disengaged from the clamping groove 223, the second mounting member 22 can move along the first direction X.

[0108] In some embodiments, the base portion 51 includes a protruding portion 511 and two mounting portions 512 spaced apart on the surface of the protruding portion 511. The protruding portion 511 and the two mounting portions 512 enclose a receiving groove 513. The buckle 52 includes a buckling portion 521, a connecting portion 522 and a pressing portion 523. The connecting portion 522 connects the buckling portion 521 and the pressing portion 523 and is at least partially received in the receiving groove 513, and the connecting portion 522 is rotatably connected to the two mounting portions 512 through a rotating shaft 54. The buckling portion 521 is used for clamping with the clamping groove 223. The pressing portion 523 is used for the user to press so that the buckling portion 521 is disengaged from the clamping groove 223. The second elastic member 53 is connected between the protruding portion 511 and the pressing portion 523. When the user presses the pressing portion 523, the pressing portion 523 moves towards the protruding portion 511 and compresses the second elastic member 53. At the same time, the buckling portion 521 moves away from the second mounting member 22 to disengage the buckling portion 521 from the clamping groove 223, and then the second mounting member 22 is moved along the first direction X. During the process of the user moving the second mounting member 22, the buckling portion 521 presses against the surface of the second mounting member 22 facing away from the base 11; when the clamping groove 223 of the second mounting member 22 moves to the position where the buckling portion 521 is located, under the elastic force of the second elastic member 53, the buckling portion 521 is clamped in the clamping groove 223 to fix the second mounting member 22.

[0109] In some embodiments, referring to Figure 3 , an opening 161 is provided on the fourth side wall 16, and the opening 161 communicates with the accommodating cavity 101. At least a part of the locking member 50 is disposed in the opening 161, and the pressing portion 523 extends out of the housing 10 through the opening 161 to facilitate the user to press.

[0110] In addition, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present application and are not intended to limit the present application. As long as appropriate changes and variations are made within the scope of the spirit of the present application, they fall within the scope of the present application.

Claims

1. A short-circuit test device, characterized in that, include: a housing, including a base; The mounting assembly includes a first mounting member and a second mounting member, wherein the first mounting member and the second mounting member are located on the same side of the base and arranged along a first direction, the first mounting member is fixed to the base, and the second mounting member is movably provided on the base; a first elastic member connected to the first mounting member and the second mounting member; The wiring assembly includes a first metal member and a second metal member, wherein the first metal member is fixed to the first mounting member, and the second metal member is fixed to the second mounting member; The first metal member and the second metal member are used to electrically connect the positive terminal and the negative terminal of the battery module respectively, and the second mounting member is configured to move toward or away from the first mounting member along the first direction so that the second metal member contacts or separates from the first metal member.

2. The short circuit test device according to claim 1, wherein: The first metal member includes a first main body portion and a first contact portion, wherein the first contact portion is detachably provided on the first main body portion and protrudes from the first main body portion toward the second metal member; The second metal component includes a second main body portion and a second contact portion. The second contact portion is detachably provided on the second main body portion and protrudes from the second main body portion toward the first metal component. The second contact portion is used to contact the first contact portion.

3. The short circuit test device according to claim 1, wherein: The wiring assembly includes a third metal member and a wire; The third metal member is fixed to the base and is used to electrically connect to the positive terminal or the negative terminal. The third metal member is electrically connected to the second metal member through the wire.

4. The short circuit test device according to claim 3, characterized in that: The second mounting member is provided with a position-avoiding hole, and the third metal member is located in the position-avoiding hole.

5. The short circuit test device according to claim 4, characterized in that: The first metal component, the second metal component and the third metal component are arranged in sequence along the first direction.

6. The short circuit test device according to claim 1, wherein: The first mounting member is provided with a plurality of first mounting holes arranged along the first direction, and the second mounting member is provided with a plurality of second mounting holes arranged along the first direction; One end of the first elastic member is connected to the first mounting hole, and the other end of the first elastic member is connected to the second mounting hole.

7. The short circuit test device according to claim 1, wherein: A slot is provided on the edge of the second mounting member; The short circuit testing device includes a locking member provided on the base. The locking member is located on a side of the second mounting member where the card slot is provided and is used for locking with the card slot.

8. The short - circuit test device according to claim 7, characterized in that, The locking member includes a base, a buckle and a second elastic member; The base is fixed to the base, the buckle is rotatably provided on the base, the second elastic member is connected to the base and the buckle, one end of the buckle elastically presses against the surface of the second mounting member away from the base and is used to engage with the slot.

9. The short-circuit test device according to claim 1, characterized in that, The base is provided with a guide rail, and the second mounting member is provided on the guide rail.

10. The short-circuit test device according to claim 1, wherein, The housing includes a top wall, a first side wall, a second side wall, a third side wall, and a fourth side wall; The first side wall and the second side wall are oppositely arranged along the first direction, and the third side wall and the fourth side wall are oppositely arranged along a second direction perpendicular to the first direction; The first side wall, the second side wall, the third side wall, the fourth side wall, and the base enclose a receiving cavity, the wiring assembly is located in the receiving cavity, and the top wall is movably connected to the fourth side wall and covers the receiving cavity; The first side wall is provided with a through hole, and the second mounting member passes through the through hole and partially extends out of the housing.

11. The short-circuit test device according to claim 10, wherein, The third side wall includes a first through hole and a second through hole which are spaced apart; The first through hole and the second through hole are configured such that a first wire passes through the first through hole to connect to the first metal member, and a second wire passes through the second through hole to connect to the second metal member.

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