Battery test fixture

Abstract

The utility model discloses a battery test fixture. The battery test fixture comprises a clamping assembly used for clamping a battery; the tab fixing part is arranged on the clamping assembly; the tab pressing plate is arranged opposite to the tab fixing part; the elastic pressing assembly is connected with the tab pressing plate and can move relative to the tab pressing plate; and the pushing and pressing assembly is connected with the elastic pressing assembly and can drive the tab pressing plate to be close to or away from the tab fixing part through the elastic pressing assembly. In the application, the tab pressing plate is driven to get close to the tab fixing part through the elastic pressing assembly, so that the battery tab is fixed between the tab pressing plate and the tab fixing part, and the acting force of the pushing and pressing assembly on the tab pressing plate is adjusted by utilizing the deformation of the elastic pressing assembly, so that the tab pressing plate is prevented from applying excessive acting force to the battery tab; the battery tab is prevented from being torn and excessively extruded, and stable connection between the battery tab and the conductive assembly is effectively ensured, so that the risk of test interruption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery testing fixture. Background Art

[0002] Soft-pack batteries, with their light weight, high energy density, good safety, and flexible design, have gained widespread application. During the development phase, soft-pack batteries require performance testing, and battery clamps are essential tools for conducting these tests. The clamps can apply a certain force to the battery, simulating the actual stress conditions within the battery pack and providing more realistic test results. They can also restrain the battery, preventing thermal failure and potential damage to personnel and equipment. There are two ways to connect soft-pack batteries to test equipment. One method involves clamping the battery tabs with alligator clips. However, the thin tabs and weak clamping force of alligator clips create a risk of disconnection during testing. Another method involves first drilling holes in the tabs and then bolting them to the test equipment. This can result in the fragile tabs being susceptible to excessive force during connection or disassembly, causing them to tear or break. Utility Model Content

[0003] In order to overcome at least one of the defects described in the above-mentioned prior art, the present application provides a battery testing fixture that can prevent the battery tabs from being torn and excessively squeezed, effectively ensuring a stable connection between the battery tabs and the conductive components, thereby reducing the risk of test interruption.

[0004] According to an embodiment of the present application, a battery testing fixture includes: a clamping assembly for clamping a battery; a tab fixing portion, the tab fixing portion is arranged on the clamping assembly; a tab pressure plate, the tab pressure plate is arranged opposite to the tab fixing portion; a spring-pressing assembly, the spring-pressing assembly is connected to the tab pressure plate; a pushing assembly, the pushing assembly is connected to the spring-pressing assembly, and can drive the tab pressure plate close to or away from the tab fixing portion through the spring-pressing assembly, and after the tab pressure plate and the tab fixing portion complete clamping the tab, the continued pushing of the pushing assembly will drive the spring-pressing assembly to deform, so that the tab pressure plate and the tab fixing portion are elastically abutted.

[0005] In this battery testing fixture, the tab pressure plate is driven by the spring-pressing assembly to approach the tab fixing portion so that the battery tab is fixed between the tab pressure plate and the tab fixing portion, and after the tab pressure plate and the tab fixing portion complete clamping the tab, the continued pushing of the pushing assembly will drive the spring-pressing assembly to deform so that the tab pressure plate and the tab fixing portion are elastically abutted, thereby adjusting the force of the pushing assembly on the tab pressure plate, avoiding the tab pressure plate from applying excessive force to the battery tab, preventing the battery tab from being torn and over-squeezed, and effectively ensuring that the battery tab is stably connected to the conductive assembly, thereby reducing the risk of test interruption.

[0006] According to some embodiments of the present application, two mutually insulated tab connecting pieces are further included, and the tab connecting piece includes an abutting section and an external connecting section, the abutting section is arranged on the side of the tab fixing portion close to the tab pressure plate, one end of the external connecting section is electrically connected to the abutting section, and the other end of the external connecting section extends outward through the tab fixing portion.

[0007] According to some embodiments of the present application, the tab fixing portion includes two fixing areas, which are respectively arranged on two opposite sides of the clamping assembly, and each of the fixing areas is provided with a tab connecting piece.

[0008] According to some embodiments of the present application, two abutment portions are provided on one side of the tab pressure plate close to the tab fixing portion, and the abutment portions are arranged opposite to the abutment sections one by one.

[0009] According to some embodiments of the present application, the spring-pressing assembly includes a fixed plate, a movable rod sleeve, a limiting movable rod and an elastic element sleeved on the limiting movable rod, the fixed plate is fixedly connected to the pushing assembly, the movable rod sleeve is fixedly connected to the fixed plate, one end of the limiting movable rod is fixedly connected to the tab pressure plate, the other end of the limiting movable rod is movably connected to the movable rod sleeve, and the elastic element abuts between the tab pressure plate and the fixed plate.

[0010] According to some embodiments of the present application, the clamping assembly includes a first clamping plate, a second clamping plate and a base plate, the tab fixing portion is arranged on the first clamping plate, the first clamping plate is fixedly connected to the base plate, the second clamping plate is arranged opposite to the first clamping plate, and the pushing assembly is connected to the second clamping plate and can drive the second clamping plate close to or away from the first clamping plate.

[0011] According to some embodiments of the present application, a driving push rod is further included, one end of which is connected to the pushing assembly, and the second clamping plate, the tab pressure plate and the spring-pressing assembly are arranged along the axial direction of the driving push rod, wherein: the second clamping plate is fixedly connected to the other end of the driving push rod; the tab pressure plate and the spring-pressing assembly are both connected to the driving push rod, and the driving push rod can drive the tab pressure plate through the spring-pressing assembly.

[0012] According to some embodiments of the present application, the pushing assembly includes a support base, a first hinge, a second hinge and a handle, the spring-pressing assembly is fixedly connected to the driving push rod, one end of the driving push rod close to the support base is hinged to the first hinge, the first hinge is hinged to the second hinge, one end of the second hinge is hinged to the support base, and the other end of the second hinge is fixedly connected to the handle.

[0013] According to some embodiments of the present application, a push rod sleeve is further included, wherein the push rod sleeve is fixedly connected to the support base, and the driving push rod is movably provided in the push rod sleeve.

[0014] According to some embodiments of the present application, an adjustment track extending along the axial direction of the driving push rod is provided at the bottom of the support base, and a fastener connected to the base plate is assembled in the adjustment track.

[0015] According to some embodiments of the present application, a support frame fixedly connected to the base plate is further included, and a side of the first clamping plate away from the second clamping plate is fixedly connected to the support frame.

[0016] In summary, the battery testing fixture provided by this application has the following technical effects:

[0017] The tab pressure plate is driven by the spring-pressing assembly to approach the tab fixing portion so that the battery tab is fixed between the tab pressure plate and the tab fixing portion. After the tab pressure plate and the tab fixing portion complete clamping the tab, the continued pushing of the pushing assembly will drive the spring-pressing assembly to deform so that the tab pressure plate and the tab fixing portion are elastically abutted, thereby adjusting the force of the pushing assembly on the tab pressure plate, avoiding the tab pressure plate from applying excessive force to the battery tab, preventing the battery tab from being torn and over-extruded, and effectively ensuring that the battery tab is stably connected to the conductive assembly, thereby reducing the risk of test interruption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a battery testing fixture in an idle state according to an embodiment of the present utility model;

[0019] Figure 2This is another structural schematic diagram of the battery testing fixture in an idle state according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic structural diagram of an elastic element according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of the pushing assembly in an idle state according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic structural diagram of a battery testing fixture in a working state according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic structural diagram of the pushing assembly in the working state according to an embodiment of the present utility model.

[0024] The meanings of the reference numerals are as follows:

[0025] 1. Clamping assembly; 11. First clamping plate; 12. Second clamping plate; 2. Tab fixing portion; 21. Fixing area; 3. Tab pressure plate; 31. Abutment portion; 4. Tab connecting piece; 41. Abutment section; 42. External section; 5. Pushing assembly; 51. Driving push rod; 52. Support base; 521. Adjustment track; 522. Fastener; 53. First hinge; 54. Second hinge; 55. Handle; 56. Push rod sleeve; 6. Spring-pressing assembly; 61. Fixing plate; 62. Movable rod sleeve; 63. Limiting movable rod; 64. Elastic element; 7. Bottom plate; 71. Support frame; 8. Soft-pack battery; 9. Battery tab. DETAILED DESCRIPTION

[0026] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] See Figure 1 The present application discloses a battery testing fixture. The battery testing fixture includes a clamping assembly 1, a tab fixing portion 2, a tab pressure plate 3, a pushing assembly 5, and a spring-pressing assembly 6. In some embodiments, the clamping assembly 1 is used to clamp a battery; the tab fixing portion 2 is disposed on the clamping assembly 1; the tab pressure plate 3 is disposed opposite to the tab fixing portion 2; the spring-pressing assembly 6 is connected to the tab pressure plate 3; the pushing assembly 5 is connected to the spring-pressing assembly 6, and can drive the tab pressure plate 3 toward or away from the tab fixing portion 2 through the spring-pressing assembly 6. After the tab pressure plate 3 and the tab fixing portion 2 complete clamping the tab, the continued pushing of the pushing assembly 5 will drive the spring-pressing assembly 6 to deform, so that the tab pressure plate 3 and the tab fixing portion 2 are elastically abutted. Preferably, the tab pressure plate 3 is driven by the spring-pressing component 6 to approach the tab fixing portion 2 so that the battery tab 9 is fixed between the tab pressure plate 3 and the tab fixing portion 2, and after the tab pressure plate 3 and the tab fixing portion 2 complete clamping the tab, the continued pushing of the pushing component 5 will drive the spring-pressing component 6 to deform so that the tab pressure plate 3 and the tab fixing portion 2 are elastically abutted, thereby adjusting the force of the pushing component 5 on the tab pressure plate 3, avoiding the tab pressure plate 3 from applying excessive force to the battery tab 9, preventing the battery tab 9 from being torn and over-extruded, and effectively ensuring that the battery tab 9 is stably connected to the conductive component 4, thereby reducing the risk of test interruption.

[0030] Optionally, the clamping assembly 1 can be a frame structure formed by multiple rods, a box-shaped structure formed by multiple plates, or a clamp structure, which is used to clamp the battery so that the battery is fixed on the clamping assembly 1; optionally, the tab fixing portion 2 and the clamping assembly 1 are an integrally formed structure, optionally, the tab fixing portion 2 and the clamping assembly 1 are two independent components, and the tab fixing portion 2 is assembled on the clamping assembly 1; optionally, a conductor structure for electrically connecting to the battery tab 9 can be arranged at the tab fixing portion 2, the tab pressure plate 3, or between the tab fixing portion 2 and the tab pressure plate 3. When the battery is fixed to the clamping assembly 1, the battery tab 9 is located between the tab fixing portion 2 and the tab pressure plate 3, and the tab pressure plate 3 is driven close to the tab fixing portion 2 by the spring-pressing assembly 6, so that the battery tab 9 abuts against the corresponding conductor structure to form a passage.

[0031] Currently, most batteries have positive and negative tabs. When testing, different conductor structures need to be used to connect the positive and negative tabs to prevent short circuits in the battery. Figure 1 、 Figure 2 and Figure 6In some embodiments, two mutually insulated tab connecting pieces 4 are further included, wherein the tab connecting piece 4 includes a contact segment 41 and an external connection segment 42, wherein the contact segment 41 is arranged on one side of the tab fixing portion 2 close to the tab pressure plate 3, and one end of the external connection segment 42 is electrically connected to the contact segment 41, and the other end of the external connection segment 42 extends outward through the tab fixing portion 2. Optionally, the tab connecting piece 4 is arranged in an "L" shape, that is, the external section 42 and the abutting section 41 are integrally formed, so that the tab connecting piece 4 is a stable whole with higher strength; optionally, the external section 42 is equipped with a device connector, and the test equipment can be electrically connected to the tab connecting piece 4 through the device connector. Optionally, the external connection module can be one or more of a snap, a hook, a bolt, and a clip, etc., which facilitates the electrical connection of the test equipment to the external section 42; optionally, the tab connecting piece 4 is made of a conductive metal material, wherein the conductive metal material can be copper, iron, silver, aluminum, etc. and an alloy material; optionally, the tab fixing portion 2 can be arranged only on one side of the clamping assembly 1, that is, the two tab connecting pieces 4 are assembled on the same side of the clamping assembly 1; optionally, the tab fixing portion 2 can be arranged only on multiple sides of the clamping assembly 1, that is, the two tab connecting pieces 4 can be assembled on different sides of the clamping assembly 1 (adjacent two sides or opposite two sides). In this embodiment, when the pushing assembly 5 drives the tab pressure plate 3 to approach the tab fixing portion 2 through the spring-pressing assembly 6, the positive tab of the battery abuts against the abutting section 41 of one tab connecting piece 4 under the drive of the tab pressure plate 3, and at the same time, the negative tab of the battery abuts against the abutting section 41 of another tab connecting piece 4 under the drive of the tab pressure plate 3, so that both the positive tab of the battery and the negative tab of the battery can abut against the corresponding tab connecting piece 4, so that the test equipment connected to the tab connecting piece 4 forms a passage with the positive tab of the battery and the negative tab of the battery.

[0032] See Figure 1 、 Figure 2 and Figure 3In some embodiments, two abutting portions 31 are provided on one side of the tab pressing plate 3 close to the tab fixing portion 2, and the abutting portions 31 are arranged one-to-one opposite to the abutting sections 41. That is, if the two tab connecting pieces 4 are assembled on the same side of the clamping assembly 1, the two abutting portions 31 are correspondingly arranged on the same side of the tab pressing plate 3; if the two tab connecting pieces 4 are assembled on different sides (adjacent sides or opposite sides) of the clamping assembly 1, the two abutting portions 31 are correspondingly arranged on different sides (adjacent sides or opposite sides) of the tab pressing plate 3, so that when the two abutting portions 31 follow the tab pressing plate 3 close to the tab fixing portion 2, the two battery tabs 9 can be respectively driven to abut against the corresponding abutting sections 41, so that the tab pressing plate 3 can accurately push the two battery tabs 9 to abut against the abutting sections 41 through the two abutting portions 31.

[0033] See Figure 1 、 Figure 2 、 Figure 3 and Figure 5 In some embodiments, the battery is a soft-pack battery 8, and the positive and negative tabs of the battery are respectively arranged on opposite sides of the battery. Preferably, the tab fixing portion 2 includes two fixing areas 21, which are respectively arranged on opposite sides of the clamping assembly 1, and each fixing area 21 is provided with a tab connecting piece 4. Correspondingly, the two abutting portions 31 are correspondingly arranged on opposite sides of the tab pressing plate 3. Specifically, when the soft-pack battery 8 is placed in the clamping assembly 1, one of the positive tab and the negative tab is placed between one fixing area 21 and one abutting portion 31, and the other of the positive tab and the negative tab is placed between the other fixing area 21 and the other abutting portion 31. The tab pressing plate 3 simultaneously drives the two abutting portions 31 to move toward the fixing area 21, thereby driving the battery tab 9 to abut against the tab connecting piece 4.

[0034] See Figure 1 、 Figure 3 and Figure 5In some embodiments, the spring-pressing assembly 6 includes a fixed plate 61, a movable rod sleeve 62, a limiting movable rod 63 and an elastic element 64 sleeved on the limiting movable rod 63. The fixed plate 61 is fixedly connected to the pushing assembly 5, the movable rod sleeve 62 is fixedly connected to the fixed plate 61, one end of the limiting movable rod 63 is fixedly connected to the tab pressure plate 3, and the other end of the limiting movable rod 63 is movably connected to the movable rod sleeve 62. The elastic element 64 abuts between the tab pressure plate 3 and the fixed plate 61. Optionally, the elastic element 64 is a spring; preferably, when the tab pressure plate 3 places the battery tab 9 between the tab pressure plate 3 and the tab fixing portion 2 and abuts against the abutting portion 31, if the pushing assembly 5 continues to drive the fixing plate 61 to move toward the tab fixing portion 2, the tab pressure plate 3 elastically abuts against the tab fixing portion 2, and the fixing plate 61 moves toward the tab fixing portion 2 relative to the tab pressure plate 3. At the same time, the fixing plate 61 drives the movable rod sleeve 62 to move along the limiting movable rod 63 toward the tab pressure plate 3, thereby driving the elastic element 64 to undergo elastic deformation to adjust the force of the pushing assembly 5 on the tab pressure plate 3, thereby avoiding the tab pressure plate 3 from applying excessive force to the battery tab 9, and effectively preventing the battery tab 9 from being torn and over-extruded.

[0035] In some embodiments, the clamping assembly 1 includes a first clamping plate 11, a second clamping plate 12, and a bottom plate 7. The tab fixing portion 2 is provided on the first clamping plate 11. The first clamping plate 11 is fixedly connected to the bottom plate 7. The second clamping plate 12 is arranged opposite to the first clamping plate 11. The pushing assembly 5 is connected to the second clamping plate 12 and is capable of driving the second clamping plate 12 toward or away from the first clamping plate 11. In this way, when the pushing assembly 5 drives the tab pressure plate 3 toward the tab fixing portion 2 through the spring assembly 6, it simultaneously drives the second clamping plate 12 toward the first clamping plate 11, so that the second clamping plate 12 and the first clamping plate 11 synchronously clamp the battery to prevent displacement of the battery. The second clamping plate 12 and the first clamping plate 11 are used to clamp and pressurize the battery, effectively simulating the stress conditions of the battery during actual use, ensuring that the test results are more realistic and reliable. Optionally, the tab fixing portion 2 and the first clamping plate 11 are an integrally formed structure. Optionally, the tab fixing portion 2 and the first clamping plate 11 are two independent components, and the tab fixing portion 2 is assembled on the first clamping plate 11 .

[0036] See Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6In some embodiments, a driving push rod 51 is further included, one end of which is connected to the pushing assembly 5, and the second clamping plate 12, the tab pressure plate 3 and the spring-pressing assembly 6 are arranged along the axial direction of the driving push rod 51, wherein: the second clamping plate 12 is fixedly connected to the other end of the driving push rod 51; the tab pressure plate 3 and the spring-pressing assembly 6 are both connected to the driving push rod 51, and the driving push rod 51 can drive the tab pressure plate 3 through the spring-pressing assembly 6. In this way, the pushing assembly 5 can synchronously drive the second clamping plate 12 and the spring-pressing assembly 6 through the driving push rod 51. Specifically, the driving push rod 51 drives the second clamping plate 12 to move toward the first clamping plate 11, thereby clamping the battery. At the same time, the driving push rod 51 drives the fixing plate 61 to synchronously move toward the first clamping plate 11, so that the elastic element 64 drives the tab pressure plate 3 to drive the two abutting parts 31 to move toward the fixed area 21, thereby driving the battery tab 9 to abut against the abutting section 41, realizing the synchronization of the battery clamping process and the connection process of the battery tab 9, simplifying the operation of the battery test fixture, and further, after the tab pressure plate 3 drives the battery tab 9 to abut against the abutting section 41 If the driving push rod 51 continues to move toward the first clamping plate 11, the tab pressure plate 3 elastically abuts against the tab fixing portion 2, and the fixing plate 61 moves relative to the tab pressure plate 3 toward the tab fixing portion 2. At the same time, the fixing plate 61 drives the movable rod sleeve 62 to move along the limiting movable rod 63 toward the tab pressure plate 3, thereby driving the elastic element 64 to undergo elastic deformation to adjust the force of the fixing plate 61 acting on the tab pressure plate 3, thereby achieving the force of the tab pressure plate 3 on the battery tab 9 being independent of the clamping force of the first clamping plate 11 and the second clamping plate 12 on the battery, effectively avoiding the tab pressure plate 3 from applying excessive pressure to the battery tab 9, and preventing the battery tab 9 from being torn and over-extruded.

[0037] See Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6In some embodiments, the pushing assembly 5 includes a support base 52, a first hinge 53, a second hinge 54, and a handle 55. The spring-pressing assembly 6 is fixedly connected to the driving push rod 51. The end of the driving push rod 51 near the support base 52 is hinged to the first hinge 53. The first hinge 53 is hinged to the second hinge 54. One end of the second hinge 54 is hinged to the support base 52, and the other end of the second hinge 54 is fixedly connected to the handle 55. In this way, the handle 55 can drive the second hinge 54 to rotate about the hinge axis between itself and the support base 52 in a direction away from or toward the first clamping plate 11, thereby driving the driving push rod 51 to move away from or toward the first clamping plate 11 through the first hinge 53, so that the second clamping plate 12 and the tab pressure plate 3 move away from or toward the first clamping plate 11, thereby clamping or releasing the battery and the battery tab 9.

[0038] See Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6 In some embodiments, a push rod sleeve 56 is further included, wherein the push rod sleeve 56 is fixedly connected to the support base 52, and the driving push rod 51 is movably provided in the push rod sleeve 56. Preferably, the push rod sleeve 56 is provided at one end of the support base 52 close to the first clamping plate 11, and the second hinge 54 is hingedly connected to one end of the support base 52 away from the first clamping plate 11, so that the driving push rod 51 passes through the push rod sleeve 56 and is connected to the spring assembly 6 and the second clamping plate 12, so that the push rod sleeve 56 limits the driving push rod 51 to move along a straight line, thereby driving the tab pressure plate 3 and the second clamping plate 12 to move along a straight line, thereby effectively clamping or releasing the battery and the battery tab 9.

[0039] See Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6In some embodiments, the bottom of the support base 52 is provided with an adjustment track 521 extending axially along the driving push rod 51. The adjustment track 521 is equipped with a fastener 522 connected to the base plate 7. Preferably, the relative position of the support base 52 and the base plate 7 is adjusted by the adjustment track 521, thereby adjusting the distance between the support base 52 and the first clamping plate 11, and further adjusting the movement range of the tab pressure plate 3 and the second clamping plate 12 driven by the driving push rod 51. In other words, the distance between the first clamping plate 11 and the second clamping plate 12 in the working state is adjusted to adjust the preload force of the first clamping plate 11 and the second clamping plate 12 on the battery. Furthermore, the movement range of the second clamping plate 12 driven by the driving push rod 51 is adjusted so that the second clamping plate 12 can be adapted to batteries of different specifications, thereby improving the applicability of the battery testing fixture.

[0040] See Figure 2 In some embodiments, the test apparatus further includes a support frame 71 fixedly connected to the base plate 7, and the side of the first clamping plate 11 away from the second clamping plate 12 is fixedly connected to the support frame 71. Preferably, the support frame 71 supports the first clamping plate 11, thereby increasing the strength of the first clamping plate 11 and enabling it to securely and reliably clamp the battery against the second clamping plate 12, thereby preventing the battery from shifting during testing.

[0041] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6In some embodiments, in combination with the specifications of the soft-pack battery 8, the relative position of the support base 52 and the bottom plate 7 is adjusted in advance by the adjustment rail 521, so as to determine the movement range of the drive push rod 51 to drive the tab pressure plate 3 and the second clamping plate 12, and ensure that the pre-tightening force of the first clamping plate 11 and the second clamping plate 12 on the battery meets the test requirements, and then the soft-pack battery 8 is placed between the first clamping plate 11 and the second clamping plate 12, and at the same time, one of the positive and negative tabs of the battery is placed between one of the fixing areas 21 and one of the abutting portions 31, and the other of the positive and negative tabs is placed between the other fixing area 21 and the other abutting portion 31. The second hinge 54 is then driven by the handle 55 to rotate around the hinge axis between itself and the support base 52 in the direction close to the first clamping plate 11, and the driving push rod 51 synchronously drives the second clamping plate 12 and the spring-pressing assembly 6 to move in the direction close to the first clamping plate 11. Preferably, the driving push rod 51 drives the second clamping plate 12 to move in the direction of the first clamping plate 11, thereby clamping the battery to prevent the battery from being displaced, and clamping and pressurizing the battery through the second clamping plate 12 and the first clamping plate 11, effectively simulating the force conditions of the battery during actual use, ensuring that the test results are more real and reliable, and at the same time When the battery is in a state of being moved along the track 21, the driving push rod 51 drives the fixing plate 61 to move synchronously toward the first clamping plate 11, so that the elastic element 64 drives the tab pressure plate 3 to drive the two abutting portions 31 to move toward the fixing area 21, thereby driving the battery tab 9 to abut against the abutting section 41, thereby realizing the battery clamping process and the battery tab 9 connection process to be carried out synchronously, simplifying the operation of the battery test fixture, and further, after the tab pressure plate 3 drives the battery tab 9 to abut against the abutting section 41, if the driving push rod 51 continues to move toward the first clamping plate 11, the tab pressure plate 3 elastically abuts against the tab fixing portion 2, and the fixing plate 61 is in a state of being moved along the track 21. The plate 3 moves toward the tab fixing portion 2, and at the same time, the fixed plate 61 drives the movable rod sleeve 62 to move along the limiting movable rod 63 toward the tab pressure plate 3, thereby driving the elastic element 64 to undergo elastic deformation to adjust the force of the fixed plate 61 acting on the tab pressure plate 3, so as to achieve the force of the tab pressure plate 3 on the battery tab 9 being independent of the clamping force of the first clamping plate 11 and the second clamping plate 12 on the battery, effectively avoiding the tab pressure plate 3 from applying excessive pressure to the battery tab 9, preventing the battery tab 9 from being torn and over-extruded, and effectively ensuring the stability of the connection between the battery tab 9 and the conductive component 4, thereby reducing the risk of test interruption.

[0042] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A battery testing fixture, characterized in that: include: A clamping assembly (1) for clamping a battery; a tab fixing portion (2), the tab fixing portion (2) being arranged on the clamping assembly (1); a tab pressing plate (3), the tab pressing plate (3) being arranged opposite to the tab fixing portion (2); A spring-pressing assembly (6), the spring-pressing assembly (6) being connected to the tab pressure plate (3); A pushing assembly (5) is connected to the spring-pressing assembly (6), and can drive the tab pressure plate (3) to approach or move away from the tab fixing portion (2) through the spring-pressing assembly (6); and after the tab pressure plate (3) and the tab fixing portion (2) complete the clamping of the tab, the continued pushing of the pushing assembly (5) will drive the spring-pressing assembly (6) to deform, so that the tab pressure plate (3) and the tab fixing portion (2) are in elastic contact.

2. The battery test fixture according to claim 1, characterized in that: The invention also includes two mutually insulated tab connecting pieces (4), wherein the tab connecting piece (4) includes an abutting section (41) and an external connecting section (42), wherein the abutting section (41) is arranged on a side of the tab fixing portion (2) close to the tab pressure plate (3), one end of the external connecting section (42) is electrically connected to the abutting section (41), and the other end of the external connecting section (42) passes through the tab fixing portion (2) and extends outward.

3. The battery test fixture according to claim 2, characterized in that: The tab fixing portion (2) comprises two fixing areas (21), the two fixing areas (21) being respectively arranged on two opposite sides of the clamping assembly (1), and each fixing area (21) being provided with a tab connecting piece (4).

4. The battery testing fixture according to claim 2, wherein: Two abutment portions (31) are provided on one side of the tab pressing plate (3) close to the tab fixing portion (2), and the abutment portions (31) are arranged opposite to the abutment sections (41) one by one.

5. The battery testing fixture according to any one of claims 1 to 4, characterized in that: The spring-pressing assembly (6) comprises a fixed plate (61), a movable rod sleeve (62), a limiting movable rod (63) and an elastic element (64) sleeved on the limiting movable rod (63); the fixed plate (61) is fixedly connected to the pushing assembly (5); the movable rod sleeve (62) is fixedly connected to the fixed plate (61); one end of the limiting movable rod (63) is fixedly connected to the tab pressure plate (3); the other end of the limiting movable rod (63) is movably connected to the movable rod sleeve (62); and the elastic element (64) abuts between the tab pressure plate (3) and the fixed plate (61).

6. The battery testing fixture according to any one of claims 1 to 4, characterized in that: The clamping assembly (1) comprises a first clamping plate (11), a second clamping plate (12) and a base plate (7); the tab fixing portion (2) is arranged on the first clamping plate (11); the first clamping plate (11) is fixedly connected to the base plate (7); the second clamping plate (12) is arranged opposite to the first clamping plate (11); the pushing assembly (5) is connected to the second clamping plate (12) and can drive the second clamping plate (12) to approach or move away from the first clamping plate (11).

7. The battery testing fixture according to claim 6, wherein: It also includes a driving push rod (51), one end of which is connected to the pushing assembly (5), and the second clamping plate (12), the tab pressure plate (3) and the spring pressing assembly (6) are arranged along the axial direction of the driving push rod (51), wherein: The second clamping plate (12) is fixedly connected to the other end of the driving push rod (51); The tab pressure plate (3) and the spring-pressing assembly (6) are both connected to the driving push rod (51), and the driving push rod (51) can drive the tab pressure plate (3) through the spring-pressing assembly (6).

8. The battery testing fixture according to claim 7, wherein: The pushing assembly (5) comprises a supporting base (52), a first hinge (53), a second hinge (54) and a handle (55); the spring-pressing assembly (6) is fixedly connected to the driving push rod (51); one end of the driving push rod (51) close to the supporting base (52) is hinged to the first hinge (53); the first hinge (53) is hinged to the second hinge (54); one end of the second hinge (54) is hinged to the supporting base (52); and the other end of the second hinge (54) is fixedly connected to the handle (55).

9. The battery testing fixture according to claim 8, characterized in that: It also includes a push rod sleeve (56), the push rod sleeve (56) is fixedly connected to the support base (52), and the driving push rod (51) is movably arranged in the push rod sleeve (56).

10. The battery testing fixture according to claim 8 or 9, characterized in that: The bottom of the support base (52) is provided with an adjustment track (521) extending along the axial direction of the driving push rod (51), and a fastener (522) connected to the base plate (7) is assembled in the adjustment track (521).

11. The battery testing fixture according to claim 6, wherein: It also includes a support frame (71) fixedly connected to the base plate (7), and the side of the first clamping plate (11) away from the second clamping plate (12) is fixedly connected to the support frame (71).

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