Battery clamping device and test system

Abstract

The utility model relates to a battery clamping device and a test system, the device comprises a clamp assembly and an isolation buffer assembly, and the clamp assembly is used for clamping a to-be-tested battery; the isolation buffer assembly is arranged between the to-be-tested battery and the clamp assembly, so that the clamp assembly applies pressure to the to-be-tested battery through the isolation buffer assembly, heat generated in the testing process of the battery is effectively blocked, and the heat is prevented from being conducted to the clamp assembly; the pressure can be uniformly distributed on the surface of the to-be-tested battery, battery damage caused by overlarge local pressure is avoided, external vibration or mechanical impact can be absorbed and relieved, and the reliability of a test result of the to-be-tested battery can be remarkably improved especially in a long-time test, so that the stability and the accuracy of the test are improved, and the test efficiency is improved. The service life of the battery is prolonged, and the risk in the battery testing process is reduced.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery clamping device and testing system. Background Technology

[0002] Long-term cycle and storage tests of batteries typically use clamps to hold the batteries in place. The clamps apply a preload force to the batteries and maintain their shape and structure. The clamps can prevent the batteries from deforming during the test to a certain extent.

[0003] Currently, in existing battery testing, heat conduction between the fixture and the battery is easily generated, and the pressure applied by the fixture to the battery surface is unevenly distributed, affecting the stability and accuracy of the test. Utility Model Content

[0004] Based on this, a battery clamping device and a testing system are provided.

[0005] In a first aspect, this application provides a battery clamping device, comprising:

[0006] Based on this, a battery clamping device and a testing system are provided.

[0007] In a first aspect, this application provides a battery clamping device, comprising:

[0008] A clamping assembly for holding the battery under test;

[0009] An isolation buffer assembly is disposed between the battery under test and the clamp assembly so that the clamp assembly applies pressure to the battery under test through the isolation buffer assembly.

[0010] In one embodiment, the clamping assembly includes at least two clamping plates, and the isolation buffer assembly includes at least two isolation buffers, with each clamping plate and each isolation buffer being configured in a one-to-one correspondence.

[0011] The clamping plate applies pressure to the corresponding side of the battery under test through appropriate isolation buffers.

[0012] In one embodiment, the battery clamping device further includes at least two first fixing members, which are positioned at positioning points on the corresponding sides of the battery to be tested.

[0013] The first fixing member is used to position the corresponding isolation buffer and is connected to the positioning point on the corresponding side of the battery under test.

[0014] In one embodiment, the battery clamping device further includes at least two second fixing members, which are disposed at the positioning points of the corresponding isolation buffer members;

[0015] The second fastener is positioned and connected to the corresponding first fastener.

[0016] In one embodiment, the battery clamping device further includes at least two first positioning elements, with at least one first positioning element provided on the corresponding side of the battery to be tested, so as to position the corresponding side of the corresponding isolation buffer.

[0017] In one embodiment, the isolation buffer has opposing first isolation sides and second isolation sides, and the corresponding side of the battery under test has opposing first battery sides and second battery sides; the distance from the first isolation side to the first battery side is the same as the distance from the second isolation side to the second battery side.

[0018] And / or, the isolation buffer has opposing third isolation sides and fourth isolation sides, and the corresponding side of the battery under test has opposing third battery sides and fourth battery sides; the distance from the third isolation side to the third battery side is the same as the distance from the fourth isolation side to the fourth battery side.

[0019] In one embodiment, the distance between the first fixing member and the bottom edge of the corresponding side of the battery under test is between 13 and 19 mm.

[0020] In one embodiment, the clamping plate is provided with a limiting area to limit the corresponding isolation buffer within the limiting area.

[0021] In one embodiment, the isolation buffer is an aerogel pad.

[0022] Secondly, this application provides a battery testing system, including a control device and a battery clamping device as described in any of the above; the control device is connected to the battery clamping device, and the battery clamping device is used to clamp the battery to be tested.

[0023] One of the above technical solutions has the following advantages and beneficial effects:

[0024] The aforementioned battery clamping device includes a clamping assembly and an isolation buffer assembly. The clamping assembly is used to clamp the battery under test. The isolation buffer assembly is disposed between the battery under test and the clamping assembly, so that the clamping assembly applies pressure to the battery under test through the isolation buffer assembly. This effectively blocks the heat generated by the battery during the test and prevents the heat from being conducted to the clamping assembly. In addition, when the clamping assembly applies pressure to the battery under test, it can make the pressure evenly distributed on the surface of the battery under test, avoiding battery damage caused by excessive local pressure. It can also absorb and mitigate external vibration or mechanical shock. Especially in long-term testing, it can significantly improve the reliability of the test results of the battery under test, thereby improving the stability and accuracy of the test, extending the battery's lifespan, and reducing the risks in the battery testing process. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the first structure of the battery clamping device in the embodiments of this application;

[0026] Figure 2 This is a first installation schematic diagram of the battery clamping device in an embodiment of this application;

[0027] Figure 3 This is a second installation schematic diagram of the battery clamping device in an embodiment of this application;

[0028] Figure 4 This is a third installation diagram of the battery clamping device in the embodiments of this application;

[0029] Figure 5 This is a schematic diagram of the clamping plate structure of the battery clamping device in the embodiments of this application.

[0030] Figure label:

[0031] 10. Fixture assembly; 110. Clamping plate; 112. Limiting area; 20. Isolation buffer assembly; 210. Isolation buffer component; 30. First fixing component; 40. Second fixing component; 50. First positioning component; 60. Battery to be tested. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover inclusions not explicitly listed. For example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0035] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0036] In addition, the term "multiple" should mean two or more.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] In one embodiment, such as Figure 1 As shown, a battery clamping device is provided, including a clamping assembly 10 and an isolation buffer assembly 20. The clamping assembly 10 is used to clamp a battery 60 to be tested. The isolation buffer assembly 20 is disposed between the battery 60 to be tested and the clamping assembly 10, so that the clamping assembly 10 applies pressure to the battery 60 to be tested through the isolation buffer assembly 20.

[0039] The clamping assembly 10 is used to clamp the battery under test 60 to fix the battery under test 60 and maintain its shape and structure, facilitating long-term cyclic and storage testing of the battery under test 60. For example, the clamping assembly 10 can clamp two opposite sides of the battery under test 60, and fix the battery under test 60 by applying a preload.

[0040] Since the isolation buffer assembly 20 is positioned between the battery under test 60 and the fixture assembly 10, it ensures that the pressure output by the fixture assembly 10 is evenly distributed on the corresponding surface of the battery under test 60, preventing battery damage caused by excessive local pressure. The isolation buffer assembly 20 also absorbs and mitigates external vibrations or mechanical shocks, acting as a buffer, which greatly improves the reliability of test results, for example, during long-term battery testing. Furthermore, the isolation buffer assembly 20 effectively blocks the heat generated by the battery under test 60 during testing, preventing heat conduction to the fixture assembly 10, thereby improving the stability and accuracy of the test. Additionally, the isolation buffer assembly 20 prevents electrical contact between the battery under test 60 and the fixture assembly 10, reducing the risk of battery short circuits and electrical faults, and improving the safety of battery testing.

[0041] It should be noted that the battery under test 60 may include several individual cells. For example, the battery under test 60 may be composed of several individual cells connected in series and / or parallel; or, the battery under test 60 may be composed of a single individual cell. Individual cells may be, but are not limited to, lithium-ion batteries; for example, individual cells may be lithium iron phosphate cells, ternary lithium cells, or lithium manganese iron phosphate cells. Individual cells may have regular shapes such as square or round.

[0042] For example, the clamping process of the battery 60 to be tested is as follows: the isolation buffer component 20 is attached to the corresponding side of the battery 60 to be tested, the battery 60 to be tested with the isolation buffer component 20 is placed in the clamping area of ​​the clamping component 10, and then the clamping component 10 applies pressure to the battery 60 to be tested through the isolation buffer component 20 to clamp and fix the battery 60 to be tested, thereby playing the role of heat insulation, buffering and uniform pressure distribution of the battery 60 to be tested. In another example, the clamping process of the battery under test 60 can be as follows: the isolation buffer component 20 is fixedly installed on the corresponding clamping surface of the clamping assembly 10, the battery under test 60 is placed in the clamping area of ​​the clamping assembly 10 on which the isolation buffer component 20 is installed, and then the clamping assembly 10 applies pressure to the battery under test 60 through the isolation buffer component 20 to achieve clamping and fixing of the battery under test 60. This allows the battery under test 60 to more effectively control heat, distribute pressure, reduce vibration effects and ensure electrical safety during long-term cycle and storage tests, improves the accuracy and reliability of the battery under test 60 test, extends the battery's service life and reduces the risks in the test process.

[0043] In the above embodiments, an isolation buffer component 20 is disposed between the battery under test 60 and the clamping assembly 10, so that the clamping assembly 10 applies pressure to the battery under test 60 through the isolation buffer component 20, thereby clamping and fixing the battery under test 60. This effectively blocks the heat generated by the battery during the test and prevents the heat from being conducted to the clamping assembly 10. In addition, when the clamping assembly 10 applies pressure to the battery under test 60, it can make the pressure evenly distributed on the surface of the battery under test 60, avoiding battery damage caused by excessive local pressure, and can absorb and mitigate external vibration or mechanical shock. Especially in long-term testing, it can significantly improve the reliability of the test results of the battery under test 60, thereby improving the stability and accuracy of the test, extending the battery's service life, and reducing the risks in the battery testing process.

[0044] In one embodiment, such as Figure 1 As shown, the clamping assembly 10 includes at least two clamping plates 110, and the isolation buffer assembly 20 includes at least two isolation buffers 210. Each clamping plate 110 is arranged in a one-to-one correspondence with each isolation buffer 210. The clamping plate 110 applies pressure to the corresponding side of the battery 60 under test through the corresponding isolation buffer 210.

[0045] The clamping plate 110 can be a metal clamping plate 110, and its shape matches the shape of the battery 60 under test. For example, if the battery 60 under test is a square battery, the clamping plate 110 has a flat structure; if the battery 60 under test is a cylindrical battery, the clamping plate 110 has an arc-shaped structure. The isolation buffer 210 is a flexible isolation buffer 210. In one embodiment, the isolation buffer 210 is an aerogel pad. For example, the aerogel pad can be silica aerogel, polyurethane aerogel, extruded foamed polypropylene aerogel, carbon nanotube aerogel, and graphene aerogel, etc. The pressure applied by the clamping plate 110 can be determined based on a preset pressure value. For example, the pressure range applied by the clamping plate 110 can be between 200N and 400N.

[0046] The isolation buffer 210 is positioned between the battery under test 60 and the corresponding clamping plate 110. The clamping plate 110 applies pressure to the corresponding side of the battery under test 60 through the isolation buffer 210 to clamp and fix the battery under test 60. This ensures that the pressure output by the clamping plate 110 is evenly distributed on the corresponding surface of the battery under test 60, preventing battery damage caused by excessive local pressure. The isolation buffer 210 can absorb and mitigate external vibrations or mechanical shocks, playing a buffering role. For example, in long-term battery testing, it can greatly improve the reliability of test results. It effectively blocks the heat generated by the battery under test 60 during the test, preventing heat conduction to the clamping plate 110, thereby improving the stability and accuracy of the test. In addition, it prevents electrical contact between the battery under test 60 and the clamping assembly 10, thereby reducing the risk of battery short circuits and electrical faults and improving the safety of battery testing.

[0047] For example, the clamping assembly 10 includes a first clamping plate 110 and a second clamping plate 110, and the isolation buffer assembly 20 includes a first isolation buffer 210 and a second isolation buffer 210. The battery under test 60 is a square battery, and the battery under test 60 has a first side and a second side with a larger area. The first isolation buffer 210 is attached to the first side of the battery under test 60, and the battery under test 60 with the first isolation buffer 210 and the second isolation buffer 210 is placed in the clamping assembly 10. Within the clamping area, the first isolation buffer 210 corresponds to the first clamping plate 110, and the second isolation buffer 210 corresponds to the second clamping plate 110. The first and second clamping plates 110 then apply pressure to the corresponding sides of the battery under test 60, thereby clamping and fixing the battery under test 60. This allows the battery under test 60 to more effectively control heat, distribute pressure, reduce vibration effects, and ensure electrical safety during long-term cycle and storage testing. This improves the accuracy and reliability of the battery under test testing, extends battery life, and reduces risks during the testing process. It should be noted that the first isolation buffer 210 can be adhesively attached to the first side of the battery under test 60; the second isolation buffer 210 can be adhesively attached to the second side of the battery under test 60.

[0048] In one example, the dimensions of the isolation buffer 210 can be determined based on the dimensions of the battery 60 under test. For example, the dimensions of the isolation buffer 210 can be, but are not limited to, 170 mm in length, 165 mm in width, and 2 mm in height.

[0049] In one embodiment, such as Figure 2 and Figure 4As shown, the battery clamping device also includes at least two first fixing members 30, which are positioned at the corresponding side of the battery 60 to be tested; the first fixing members 30 are used to position the corresponding isolation buffer 210 and are connected to the positioning point on the corresponding side of the battery 60 to be tested.

[0050] The number of first fixing members 30 is the same as the number of isolation buffer members 210. The first fixing members 30 can be used to fix the corresponding isolation buffer members 210, and can also be used to position the corresponding isolation buffer members 210. The first fixing members 30 can be, but are not limited to, foam cotton, with two adhesive sides. For example, the first side of the first fixing member 30 is used to adhere to the positioning point on the corresponding side of the battery under test 60, and the second side of the first fixing member 30 is used to adhere to the corresponding position of the corresponding isolation buffer member 210, thereby positioning the corresponding isolation buffer member 210 on the corresponding positioning point of the battery under test 60.

[0051] The positioning point on the corresponding side of the battery under test 60 can be the center point of the corresponding side of the battery under test 60, thereby ensuring that the corresponding isolation buffer 210 is positioned at the center of the battery under test 60, so as to achieve effective isolation between the clamping plate 110 and the corresponding side of the battery under test 60. By bonding the first fixing member 30 to the positioning point on the corresponding side of the battery under test 60, and bonding the corresponding position of the isolation buffer member 210 to the first fixing point, the isolation buffer member 210 is positioned at the positioning point on the corresponding side of the battery under test 60. The battery under test 60 with the isolation buffer member 210 is placed in the clamping area of ​​the clamping assembly 10, and the isolation buffer member 210 corresponds to the corresponding clamping plate 110. Then, the clamping plate 110 applies pressure to the corresponding side of the battery under test 60, thereby clamping and fixing the battery under test 60. The pressure is evenly distributed on the surface of the battery under test 60, which enables the battery under test 60 to more effectively control heat, reduce vibration impact and ensure electrical safety during long-term cycle and storage tests. This improves the accuracy and reliability of the battery under test test, and also improves the ease of installation for clamping and testing the battery under test 60.

[0052] In one embodiment, such as Figure 5 As shown, the battery clamping device also includes at least two second fixing members 40, which are disposed at the positioning points of the corresponding isolation buffer members 210; the second fixing members 40 are positioned and connected to the corresponding first fixing members 30.

[0053] The number of second fixing members 40 is the same as the number of first fixing members 30. The second fixing members 40 can be used to fix the isolation buffer 210 to the corresponding positioning point on the side of the battery under test 60. The second fixing members 40 can also be used to position the battery under test 60 against the first fixing members 30 at the corresponding positioning point. For example, the second fixing member 40 can be, but is not limited to, foam cotton. The two sides of the foam cotton are adhesive. The first side of the second fixing member 40 is used to adhere to the positioning point of the corresponding isolation buffer 210, and the second side of the second fixing member 40 is used to adhere to the corresponding first fixing member 30, thereby positioning the corresponding isolation buffer 210 at the corresponding positioning point of the battery under test 60.

[0054] The positioning point of the isolation buffer 210 can be the center point of the corresponding side of the isolation buffer 210, thereby ensuring that the corresponding isolation buffer 210 is positioned at the center of the battery under test 60, realizing effective isolation between the clamping plate 110 and the corresponding side of the battery under test 60, and further improving the ease of installation for clamping and testing the battery under test 60.

[0055] By bonding the first fixing member 30 to the positioning point on the corresponding side of the battery under test 60, and bonding the second fixing member 40 to the positioning point on the corresponding isolation buffer member 210, the isolation buffer member 210 is positioned at the positioning point on the corresponding side of the battery under test 60. When the clamping plate 110 applies pressure to the corresponding side of the battery under test 60, the pressure can be evenly distributed on the surface of the battery under test 60. This allows the battery under test 60 to more effectively control heat, reduce vibration impact and ensure electrical safety during long-term cycle and storage tests, improving the accuracy and reliability of the battery under test 60 test, and also improving the ease of installation for clamping and testing the battery under test 60.

[0056] In one embodiment, such as Figure 4 As shown, the battery clamping device also includes at least two first positioning members 50. At least one first positioning member 50 is provided on the corresponding side of the battery 60 to be tested, so as to position the corresponding side of the corresponding isolation buffer 210.

[0057] The first positioning element 50 is used to position the corresponding side of the corresponding isolation buffer 210. The first positioning element 50 may be elongated and can be mounted on the corresponding side of the battery under test 60 by means of bonding or other methods. The first positioning element 50 and the corresponding side of the battery under test 60 can be arranged parallel to each other, thereby making the corresponding side of the isolation buffer 210 parallel to the corresponding side of the battery under test 60, achieving precise positioning of the isolation buffer 210.

[0058] For example, two first positioning members 50 are provided on the corresponding side of the battery under test 60. The two first positioning members 50 are positioned one-to-one with the two sides of the corresponding isolation buffer 210. For example, the two first positioning members 50 can be used to position the two adjacent sides of the corresponding isolation buffer 210. Alternatively, the two first positioning members 50 can also be used to position the two side plates of the corresponding isolation buffer 210 that are arranged opposite each other, thereby achieving precise positioning of the corresponding isolation buffer 210. The isolation buffer 210 is positioned at the positioning point on the corresponding side of the battery under test 60. Thus, when the clamping plate 110 applies pressure to the corresponding side of the battery under test 60, the pressure can be evenly distributed on the surface of the battery under test 60, avoiding lateral displacement of the isolation buffer 210 and improving the accuracy and reliability of the test of the battery under test 60.

[0059] In one embodiment, such as Figure 2 and Figure 4 As shown, the isolation buffer 210 has opposing first isolation sides and second isolation sides, and the corresponding side of the battery under test 60 has opposing first battery sides and second battery sides; the distance from the first isolation side to the first battery side is the same as the distance from the second isolation side to the second battery side; and / or, the isolation buffer 210 has opposing third isolation sides and fourth isolation sides, and the corresponding side of the battery under test 60 has opposing third battery sides and fourth battery sides; the distance from the third isolation side to the third battery side is the same as the distance from the fourth isolation side to the fourth battery side.

[0060] For example, if the battery under test 60 is a square battery, the first battery side of the battery under test 60 can be the left side, the second battery side of the battery under test 60 can be the right side, the third battery side of the battery under test 60 can be the top side, and the fourth battery side of the battery under test 60 can be the bottom side. The first isolation side of the isolation buffer 210 corresponds to the first battery side of the battery under test 60, the second isolation side of the isolation buffer 210 corresponds to the second battery side of the battery under test 60, the third isolation side of the isolation buffer 210 corresponds to the third battery side of the battery under test 60, and the fourth isolation side of the isolation buffer 210 corresponds to the fourth battery side of the battery under test 60.

[0061] Since the distance from the first isolation side to the first battery side is the same as the distance from the second isolation side to the second battery side, when the isolation buffer 210 is positioned at the corresponding side of the battery under test 60, the isolation buffer 210 is positioned horizontally centered based on the corresponding side of the battery under test 60. Furthermore, since the distance from the third isolation side to the third battery side is the same as the distance from the fourth isolation side to the fourth battery side, when the isolation buffer 210 is positioned at the corresponding side of the battery under test 60, the isolation buffer 210 is positioned vertically centered based on the corresponding side of the battery under test 60. This precise positioning of the isolation buffer 210 ensures that when the clamping plate 110 applies pressure to the corresponding side of the battery under test 60, the pressure is evenly distributed on the surface of the battery under test 60, preventing lateral displacement of the isolation buffer 210 and further improving the accuracy and reliability of the battery under test 60 testing.

[0062] In one embodiment, the distance between the first fixing member 30 and the bottom edge of the corresponding side of the battery under test 60 is between 13 and 19 mm.

[0063] For example, the distance between the first fixing member 30 and the bottom edge of the corresponding side of the battery under test 60 can be 16 mm. By setting the first fixing member 30 on the corresponding side of the battery under test 60, for example, setting the first fixing member 30 at the center point of the corresponding side of the battery under test 60, and by setting the distance between the first fixing member 30 and the bottom edge of the corresponding side of the battery under test 60, it is ensured that the corresponding isolation buffer 210 can be firmly bonded to the first fixing member 30, and at the same time, it is ensured that the isolation buffer 210 can be effectively isolated from the clamping plate 110, preventing electrical contact between the battery under test 60 and the clamping plate 110, thereby reducing the risk of short circuits and electrical faults; in addition, it effectively blocks the heat generated by the battery under test 60 during the test, preventing heat conduction to the clamping plate 110, thereby improving the stability and accuracy of the test.

[0064] In one embodiment, such as Figure 5 As shown, the clamping plate 110 is provided with a limiting area 112 to limit the corresponding isolation buffer 210 within the limiting area 112.

[0065] The limiting region 112 may be, but is not limited to, a groove-shaped structure. The limiting region 112 can be used to accommodate the corresponding isolation buffer 210, and the shape of the limiting region 112 matches the shape of the isolation buffer 210. For example, if the isolation buffer 210 is square, then the shape of the limiting region 112 is square.

[0066] By setting a limiting area 112 on the clamping plate 110, when the clamping plate 110 is moved toward the battery 60 to be tested, the corresponding isolation buffer 210 can be limited in the limiting area 112 of the clamping plate 110, so as to achieve accurate positioning between the isolation buffer 210 and the clamping plate 110. Thus, the clamping plate 110 applies pressure evenly to the corresponding side of the battery 60 to be tested through the isolation buffer 210, avoiding battery damage caused by excessive local pressure.

[0067] In one embodiment, a battery testing system is also provided, including a control device and a battery clamping device as described in any of the above embodiments; the control device is connected to the battery clamping device, which is used to clamp the battery to be tested.

[0068] The control device can be used to control the battery clamping device to start working. For example, the control device can control the clamping assembly to apply pressure to the battery under test. The control device can also be used to perform charge and discharge tests on the battery under test and collect data such as voltage, current and temperature of the battery under test.

[0069] For a detailed description of the battery under test and the battery clamping device, please refer to the detailed description of the battery under test and the battery clamping device in the above embodiments, which will not be repeated here.

[0070] In the above embodiments, the control device is connected to the clamping assembly of the battery clamping device, which is used to clamp the battery under test. The isolation buffer assembly is disposed between the battery under test and the clamping assembly, so that the clamping assembly applies pressure to the battery under test through the isolation buffer assembly, effectively blocking the heat generated by the battery during the test and preventing the heat from being conducted to the clamping assembly. In addition, when the clamping assembly applies pressure to the battery under test, it can make the pressure evenly distributed on the surface of the battery under test, avoiding battery damage caused by excessive local pressure, and can absorb and mitigate external vibration or mechanical shock. Especially in long-term testing, it can significantly improve the reliability of the test results of the battery under test, thereby improving the stability and accuracy of the test, extending the battery's service life, and reducing the risks in the battery testing process.

[0071] It should be noted that the battery testing system may also include components such as a display device. A specific battery testing system may include more components than those described in the above embodiments, or combine certain components, or have different component arrangements.

[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A battery clamping device, characterized in that, include: A clamping assembly for holding a battery under test; An isolation buffer assembly is disposed between the battery under test and the clamp assembly, so that the clamp assembly applies pressure to the battery under test through the isolation buffer assembly.

2. The battery clamping device according to claim 1, characterized in that, The clamping assembly includes at least two clamping plates, and the isolation buffer assembly includes at least two isolation buffers, with each clamping plate and each isolation buffer being configured in a one-to-one correspondence. The clamping plate applies pressure to the corresponding side of the battery under test through the corresponding isolation buffer.

3. The battery clamping device according to claim 2, characterized in that, It also includes at least two first fixing members, which are disposed at positioning points on the corresponding sides of the battery under test; The first fixing member is used to position the corresponding isolation buffer member and is connected to the positioning point on the corresponding side of the battery under test.

4. The battery clamping device according to claim 3, characterized in that, It also includes at least two second fasteners, which are disposed at the positioning points of the corresponding isolation buffers; The second fastener is positioned and connected to the corresponding first fastener.

5. The battery clamping device according to claim 2, characterized in that, It also includes at least two first positioning elements, with at least one first positioning element provided on the corresponding side of the battery under test, to position the corresponding side of the corresponding isolation buffer.

6. The battery clamping device according to claim 5, characterized in that, The isolation buffer has opposing first isolation sides and second isolation sides, and the corresponding side of the battery under test has opposing first battery sides and second battery sides; the distance from the first isolation side to the first battery side is the same as the distance from the second isolation side to the second battery side; And / or, the isolation buffer has opposing third isolation sides and fourth isolation sides, and the corresponding side of the battery under test has opposing third battery sides and fourth battery sides; the distance from the third isolation side to the third battery side is the same as the distance from the fourth isolation side to the fourth battery side.

7. The battery clamping device according to claim 3, characterized in that, The distance between the first fixing member and the bottom edge of the corresponding side of the battery under test is between 13 and 19 mm.

8. The battery clamping device according to any one of claims 2 to 7, characterized in that, The clamping plate is provided with a limiting area to limit the corresponding isolation buffer in the limiting area.

9. The battery clamping device according to any one of claims 2 to 7, characterized in that, The isolation buffer is an aerogel pad.

10. A battery testing system, characterized in that, It includes a control device and a battery clamping device as described in any one of claims 1 to 9; the control device is connected to the battery clamping device, and the battery clamping device is used to clamp the battery to be tested.

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