Battery detection tool and equipment

Abstract

The utility model discloses a battery detection tool and equipment. The tool comprises a pressing plate and a pressure detection assembly. The pressing plate is used for limiting the to-be-tested battery; the pressure detection assembly and the pressing plate are oppositely arranged at an interval and are at least used for placing a to-be-detected battery; the pressure detection assembly comprises a plurality of pressure detection monomers arranged in an array, and the sum of the surface areas, facing the to-be-detected battery, of the pressure detection monomers is larger than or equal to the surface area, facing the pressure detection monomers, of the to-be-detected battery. According to the invention, the surface of the to-be-detected battery is divided into a plurality of areas, and each area corresponds to one pressure detection monomer. Therefore, each pressure detection monomer can obtain expansive force parameters of different areas during charging and discharging of the to-be-detected battery, the local expansive force of the battery is prevented from being too large or too small, the service life of the battery is prolonged, and the cycle performance of the battery is improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of lithium batteries, and particularly relates to a battery detection tooling and equipment. Background Art

[0002] The technology of lithium batteries has developed rapidly. In various battery fields, the requirements for battery performance and safety are relatively high, and the energy density is also getting higher and higher, and the requirements for cycle performance are becoming more and more stringent. Therefore, it is very necessary to test and analyze the expansion force generated by lithium-ion batteries during charge and discharge for the research of battery safety performance.

[0003] In the related art, the lithium battery detection equipment cannot obtain the expansion force when measuring the charge and discharge of different regions of the battery core. Summary of the Utility Model

[0004] This application expects to provide a battery detection tooling and equipment, at least for obtaining the expansion force parameters of different regions of the battery under test during charge and discharge, avoiding excessive or too small expansion force in local areas of the battery, and improving the service life and cycle performance of the battery.

[0005] The utility model provides a battery detection tooling, including: a pressing plate and a pressure detection component.

[0006] The pressing plate is used to limit the battery under test; the pressure detection component is opposite to and spaced from the pressing plate, and is at least used to place the battery under test;

[0007] The pressure detection component includes a plurality of pressure detection monomers arranged in an array, and the sum of the surface areas of each pressure detection monomer facing the battery under test is greater than or equal to the surface area of the battery under test facing the pressure detection monomer.

[0008] As an implementable mode, the pressure detection component further includes a pressure detection mounting member that is opposite to and spaced from the pressing plate,

[0009] The pressure detection mounting member has a first accommodating cavity, the first accommodating cavity is provided with a first partitioning component, the first partitioning component is detachably connected to the first accommodating cavity, and the first partitioning component divides the first accommodating cavity into a plurality of pressure detection chambers distributed in an array,

[0010] The pressure detection chambers correspond to the pressure detection monomers one by one, and the pressure detection monomers are arranged in the pressure detection chambers.

[0011] As an implementable manner, the first separation component includes a plurality of first-direction separation plates and a plurality of second-direction separation plates. The plurality of first-direction separation plates and the plurality of second-direction separation plates are arranged in a grid pattern. One of the first direction and the second direction is parallel to the length or width direction of the battery under test, and the first direction and the second direction are perpendicular to each other;

[0012] The first-direction separation plate is inserted and fitted with the cavity wall of the first accommodation cavity, and the second-direction separation plate is inserted and fitted with the cavity wall of the first accommodation cavity.

[0013] As an implementable manner, the first-direction separation plate and the second-direction separation plate are integrally formed, or,

[0014] the first-direction separation plate and the second-direction separation plate are separately provided. The first-direction separation plate and the second-direction separation plate are inserted and fitted at the intersection position, or the first-direction separation plate and the second-direction separation plate are inserted and fitted through an insert at the intersection position.

[0015] As an implementable manner, it further includes a battery positioning component. The battery positioning component includes a first-direction positioning member and a second-direction positioning member,

[0016] The first-direction positioning member and the second-direction positioning member are positioned and fitted with the battery under test so that the first accommodation cavity corresponds to the battery under test. In the third direction, the orthographic projection of the battery under test on the pressure detection mounting member along the third direction is located within the first accommodation cavity or coincides with the first accommodation cavity. The third direction is perpendicular to the first direction and the second direction respectively.

[0017] As an implementable manner, the pressure detection mounting member is plate-shaped, and a first sliding groove is provided on the side surface of the pressure detection mounting member parallel to the first direction;

[0018] The first-direction positioning member includes two oppositely arranged clamping members. The clamping members are slidably fitted with the first sliding groove. Among them, a second sliding groove is provided on the clamping members;

[0019] The second-direction positioning member includes a abutting member. The abutting member is slidably fitted with the second sliding groove.

[0020] As an implementable manner, a first scale along the first direction is provided on the side surface of the pressure detection mounting member; the clamping member extends along the second direction, and a second scale along the second direction is provided on the clamping member.

[0021] As an implementable mode, it further includes a pressure regulating component, which is arranged between the pressure detection mounting member and the pressing plate. The pressure regulating component includes a plurality of pressure regulating units arranged in a rectangular array, and the pressure regulating units correspond to the pressure detection units one by one.

[0022] The pressure regulating unit is in contact with the first surface of the battery under test, and the pressure detection unit is in contact with the second surface of the battery under test.

[0023] As an implementable mode, the pressure regulating component further includes a pressure regulating mounting member that is opposite to and spaced from the pressure detection mounting member.

[0024] The pressure regulating mounting member has a second accommodation cavity, and the second accommodation cavity is provided with a second partition component. The second partition component is detachably connected to the second accommodation cavity, and the second partition component divides the second accommodation cavity into a plurality of pressure regulating chambers distributed in an array.

[0025] The pressure regulating chambers correspond to the pressure regulating units one by one, and the pressure regulating units are arranged in the pressure regulating chambers.

[0026] The present utility model further provides a lithium battery detection device, including the above-mentioned battery detection tooling.

[0027] In the above solution, the surface of the battery under test is divided into several regions, and each region corresponds to a pressure detection unit. In this way, each pressure detection unit can obtain the expansion force parameters of different regions of the battery under test during charging and discharging, avoiding excessive or too small expansion force in local areas of the battery, and improving the service life and cycle performance of the battery. The first-direction partition plate and the second-direction partition plate are detachably connected to the first accommodation cavity, which helps to select the appropriate number of pressure detection units according to the size of the battery under test. At the same time, the assembly is convenient and the production cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes, and advantages of the present application will become more obvious:

[0029] Figure 1 It is the front view of the first battery detection tooling provided by the embodiment of the present utility model;

[0030] Figure 2 It is the axonometric view of the first battery detection tooling provided by the embodiment of the present utility model;

[0031] Figure 3 It is the front view of the second battery detection tooling provided by the embodiment of the present utility model;

[0032] Figure 4Isometric view of the second battery detection tooling provided by the embodiment of the present utility model;

[0033] Figure 5 Schematic diagram of the first pressure detection component provided by the embodiment of the present utility model;

[0034] Figure 6 Schematic diagram of the second pressure detection component provided by the embodiment of the present utility model;

[0035] Figure 7 Schematic diagram of the third pressure detection component provided by the embodiment of the present utility model;

[0036] Figure 8 Schematic diagram of the fourth pressure detection component provided by the embodiment of the present utility model;

[0037] Figure 9 Is Figure 8 Partial enlarged schematic view of;

[0038] Figure 10 Top view schematic diagram of the pressure regulation component provided by the embodiment of the present utility model;

[0039] Figure 11 Schematic diagram of the pressure regulation mounting member provided by the embodiment of the present utility model;

[0040] Figure 12 Top view schematic diagram of the battery positioning component provided by the embodiment of the present utility model;

[0041] Figure 13 Isometric schematic view of the battery positioning component provided by the embodiment of the present utility model;

[0042] Support frame 10, top plate 11, bottom plate 12, intermediate plate 13, guide post 14, pressure sensor 15;

[0043] Screw assembly 20, screw 21, circular plate 22, pressing plate 30;

[0044] Pressure detection component 40, pressure detection monomer 41, pressure detection mounting member 42, first chute 421, first accommodation cavity 402, pressure detection chamber 4021, insertion slot 4022, insertion through hole 4023, first partition component 43, first direction partition plate 431, second direction partition plate 432, insert 433, first insertion slot 4331, second insertion slot 4332;

[0045] Pressure regulation component 50, pressure regulation mounting member 51, second accommodation cavity 501, pressure regulation chamber 5011, threaded hole 5012, second partition component 52;

[0046] Battery positioning assembly 60, first-direction positioning member 601, first slider 611, clamping member 612, second chute 6121, locking member 613, second-direction positioning member 602, abutting member 621;

[0047] Battery under test 70. Detailed implementation manners

[0048] The following further elaborates on the present application in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the relevant utility model and do not limit the utility model. Additionally, it should be noted that for ease of description, only parts related to the utility model are shown in the drawings.

[0049] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will detail the present application with reference to the drawings and in conjunction with the embodiments.

[0050] At least refer to Figures 1-13 As shown, an example of the present utility model provides a battery detection tooling, including: support frame 10, pressing plate 30, pressure detection assembly 40, and screw assembly 20.

[0051] As Figure 1 and Figure 2 shown, the support frame 10 includes a top plate 11, a bottom plate 12, an intermediate plate 13, guide posts 14, and a pressure sensor 15. The top plate 11, the intermediate plate 13, and the bottom plate 12 are sequentially and spaced apart from top to bottom. The guide posts 14 sequentially pass through the top plate 11, the intermediate plate 13, and the bottom plate 12, and the upper end of the guide post 14 is fixedly connected to the top plate 11, and the lower end is fixedly connected to the bottom plate 12; the intermediate plate 13 is in guiding cooperation with the guide posts 14, and the guide posts 14 limit the degree of freedom of movement of the intermediate plate 13, such that the intermediate plate 13 can only move in the vertical direction. A plurality of guide posts 14 are arranged around each plate.

[0052] Among them, the pressure sensor 15 is located between the intermediate plate 13 and the bottom plate 12.

[0053] The pressing plate 30 and the pressure detection assembly 40 are located between the top plate 11 and the intermediate plate 13. A plurality of guide posts 14 respectively pass through the periphery of the pressing plate 30, and the pressing plate 30 is in guiding cooperation with the guide posts 14, such that the pressing plate 30 can only move in the vertical direction.

[0054] The pressing plate 30 and the pressure detection assembly 40 are opposite and arranged at intervals, and at least the battery under test 70 can be placed therebetween. The battery under test 70 includes a first surface and a second surface, the first surface is arranged upwards, and the second surface is arranged downwards. The pressure detection assembly 40 includes a plurality of pressure detection monomers 41 arranged in an array, and the sum of the surface areas of the surfaces of the respective pressure detection monomers 41 facing the second surface of the battery under test 70 is greater than or equal to the area of the second surface of the battery under test 70, wherein the second surface of the battery under test 70 faces the pressure detection monomers 41.

[0055] Among them, the pressure detection monomer 41 can be a piezoelectric pressure sensor, which is used for the detection of dynamic pressure.

[0056] Such as Figure 1 and Figure 2 As shown, the screw assembly 20 includes a screw 21 and a circular plate 22 connected to the lower end of the screw 21. The length of the screw 21 extends in the vertical direction. The screw 21 passes through the top plate 11 and is threadedly connected to the top plate 11. The circular plate 22 is in contact with the pressing plate 30.

[0057] Before detecting the battery under test 70, the pre-tightening pressure is set first, that is, by rotating the screw 21, the circular plate 22 presses against the pressing plate 30, the pressing plate 30 moves downward, and the pressing plate 30 and the respective pressure detection monomers 41 sandwich the battery under test 70 so that the battery under test 70 is in a preset position. At the current moment, the total surface formed by the surfaces of the respective pressure detection monomers 41 facing the second surface of the battery under test 70 can at least cover the second surface of the battery under test 70.

[0058] When detecting the battery under test 70, continue to rotate the screw 21, and the pressing plate 30 continues to move downward. The pressure sensor 15 can obtain the pressure parameters of the pressing plate 30 pressing against the battery under test 70 at all times.

[0059] Since the sum of the surface areas of the surfaces of the respective pressure detection monomers 41 facing the second surface of the battery under test 70 is greater than or equal to the area of the second surface of the battery under test 70, the surface area of each pressure detection monomer 41 facing the second surface of the battery under test 70 can be 1 / 2, 1 / 3, 1 / 4, 1 / 5, 1 / 6, 1 / 7, 1 / 8, 1 / 9, 1 / 10, 1 / 11, 1 / 2... of the area of the second surface of the battery under test 70. For example, as Figure 5 shown, the surface area of each pressure detection monomer 41 facing the second surface of the battery under test 70 is 1 / 16 of the area of the second surface of the battery under test 70. The second surface of the battery under test 70 is divided into 16 regions, and each region corresponds to a pressure detection monomer 41. In this way, the respective pressure detection monomers 41 can obtain the expansion force parameters of different regions during the charge and discharge of the battery under test 70, avoiding excessive or too small expansion force in local areas of the battery, and improving the service life and cycle performance of the battery.

[0060] As an implementable mode, the pressure detection component 40 further includes a pressure detection mounting member 42 that is opposite to and spaced from the pressing plate 30.

[0061] As Figure 1 and Figure 2 shown, the pressure detection mounting member 42 is plate-shaped, the pressure detection mounting member 42 is opposite to and spaced from the pressing plate 30, and a plurality of guide posts 14 respectively pass through the four circumferences of the pressure detection mounting member 42.

[0062] As Figure 5 and Figure 6 shown, the pressure detection mounting member 42 has a first accommodation cavity 402, and the first accommodation cavity 402 penetrates the upper and lower surfaces of the pressure detection mounting member 42. The first accommodation cavity 402 is provided with a first partition component 43, the first partition component 43 is fixedly or detachably connected to the first accommodation cavity 402, the first partition component 43 divides the first accommodation cavity 402 into a plurality of pressure detection chambers 4021 arranged in a rectangular array, the pressure detection chambers 4021 correspond to the pressure detection monomers 41 one by one, and one pressure detection monomer 41 is arranged in each pressure detection chamber 4021. The height of the pressure detection monomer 41 can be slightly higher than the height of the pressure detection mounting member 42, the upper end surface of the pressure detection monomer 41 is in contact with the second surface of the battery under test 70, and the lower end surface of the pressure detection monomer 41 is in contact with the intermediate plate 13.

[0063] Of course, it can be understood that the first partition component 43 can also divide the first accommodation cavity 402 into a plurality of pressure detection chambers 4021 arranged in an annular array.

[0064] In this way, the pressure detection chambers 4021 can limit the degrees of freedom of the pressure detection monomers 41, so that each pressure detection monomer 41 stably detects the area of the second surface of the corresponding battery under test 70, avoiding interference and influence between adjacent two pressure detection monomers 41, and contributing to the accuracy of the detection parameters of the pressure detection monomers 41.

[0065] Furthermore, the first partition component 43 is detachably connected to the first accommodation cavity 402 to adjust the number of the pressure detection chambers 4021, and further adjust the number of the pressure detection monomers 41. In this way, it can be applicable to detecting batteries under test 70 of different sizes, and the appropriate number of pressure detection monomers 41 can be selected according to the size of the battery under test 70.

[0066] In a specific embodiment, as Figure 2 shown, the first direction is the length direction of the battery under test 70, that is, the left-right direction; the second direction is the width direction of the battery under test 70, that is, the front-back direction.

[0067] As Figure 6As shown, the first partition component 43 includes a plurality of first-direction partition plates 431 and a plurality of second-direction partition plates 432. The length of the first-direction partition plates 431 extends in the left-right direction, and the length of the second-direction partition plates 432 extends in the front-back direction. The plurality of first-direction partition plates 431 and the plurality of second-direction partition plates 432 are arranged in a grid pattern, and the first-direction partition plates 431 and the second-direction partition plates 432 can be integrally formed, such that the grid structure is an integral whole.

[0068] Insertion slots 4022 are provided on the cavity wall of the first accommodation cavity 402, and a plurality of insertion slots 4022 are arranged on each cavity wall. Both ends of the first-direction partition plates 431 are in insertion fit with the insertion slots 4022 on the left-right direction cavity walls of the first accommodation cavity 402, and both ends of the second-direction partition plates 432 are in insertion fit with the insertion slots 4022 on the front-back direction cavity walls of the first accommodation cavity 402.

[0069] In another specific embodiment, as Figure 7 shown, the first-direction partition plates 431 and the second-direction partition plates 432 are separately provided. Insertion through holes 4023 are provided on the cavity wall of the first accommodation cavity 402, the insertion through holes 4023 extend in the front-back direction, the second-direction partition plates 432 are passed through the insertion through holes 4023, and the two are in insertion fit.

[0070] On the first-direction partition plates 431, and at the intersection positions with the second-direction partition plates 432, first insertion notches (not shown due to occlusion) are provided. On the second-direction partition plates 432, and at the intersection positions with the first-direction partition plates 431, second insertion notches (not shown due to occlusion) are provided, and the second insertion notches are in insertion fit with the first insertion notches. The plurality of first-direction partition plates 431 and the plurality of second-direction partition plates 432 are assembled into the above-mentioned grid structure.

[0071] With such a setting, the flexibility of assembly is high, which helps to select the appropriate number of pressure detection monomers 41 according to the size of the battery 70 to be tested. As Figure 7 shown, at the same time, the assembly is convenient and the production cost is low.

[0072] In yet another specific embodiment, as Figure 8 and Figure 9 shown, the first-direction partition plates 431 and the second-direction partition plates 432 are separately provided. The first-direction partition plates 431 and the second-direction partition plates 432 are in insertion fit through insertion parts 433 at the intersection positions. The insertion parts 433 are provided with first insertion slots 4331 in insertion fit with the first-direction partition plates 431 and second insertion slots 4332 in insertion fit with the second-direction partition plates 432. The plurality of first-direction partition plates 431 and the plurality of second-direction partition plates 432 are assembled into the above-mentioned grid structure by means of the insertion parts 433.

[0073] With such a setting, the flexibility of assembly is high, which helps to select the appropriate number of pressure detection monomers 41 according to the size of the battery 70 to be tested, as Figure 8 shown. At the same time, the assembly is convenient and the production cost is low.

[0074] Of course, it can be understood that the first partition component 43 can also be other structures, which will not be listed one by one in this embodiment. It is only necessary to divide the first accommodation cavity 402 into a plurality of pressure detection chambers 4021 in a rectangular array.

[0075] As an implementable manner, as Figure 12 and Figure 13 shown, the battery detection tooling further includes a battery positioning component 60. The battery positioning component 60 includes a first-direction positioning member 601 and a second-direction positioning member 602. The first-direction positioning member 601 and the second-direction positioning member 602 are in positioning cooperation with the battery 70 to be tested, so that the first accommodation cavity 402 corresponds to the battery 70 to be tested. In the third direction, the battery 70 to be tested is orthogonally projected on the pressure detection mounting member 42 in the third direction, and the projection of the battery 70 to be tested is located within the first accommodation cavity 402 or coincides with the first accommodation cavity 402. The third direction is perpendicular to the first direction and the second direction.

[0076] In this way, through the first-direction positioning member 601 and the second-direction positioning member 602, the battery 70 to be tested is in a preset position. In the preset position, the geometric center of the battery 70 to be tested and the geometric center of the rectangular first accommodation cavity 402 are on the same vertical line, which helps the projection of the battery 70 to be tested to be located within the first accommodation cavity 402 or coincide with the first accommodation cavity 402.

[0077] In a specific embodiment, as Figure 1 , Figure 2 , Figure 12 and Figure 13 shown, the pressure detection mounting member 42 is plate-shaped, and first chutes 421 are provided on the front side and the rear side parallel to the left-right direction (or the first direction). The first chutes 421 extend in the left-right direction.

[0078] The first-direction positioning member 601 includes four first sliders 611, two clamping members 612 and four locking members 613. The two clamping members 612 are arranged oppositely. The clamping members 612 are strip-shaped, and their lengths extend in the front-rear direction (or the second direction). One first slider 611 is connected to each end of each clamping member 612. The first sliders 611 are slidably engaged with the first chutes 421, so that the two clamping members 612 approach each other to clamp the battery 70 to be tested; the two clamping members 612 move away from each other to release the battery 70 to be tested.

[0079] The locking members 613 correspond to the first sliders 611 one by one, and the first sliders 611 are firmly locked on the first sliding grooves 421 through the locking members 613. For example, as Figure 13 shown, the locking member 613 is a screw, and the screw passes through the first slider 611 and abuts against the first sliding groove 421.

[0080] Wherein, a first scale (not shown) extending in the left - right direction is provided on the front side or the rear side of the pressure detection mounting member 42. Since the geometric center of the first accommodation cavity 402 coincides with the geometric center of the pressure detection mounting member 42, the position of the battery under test 70 in the left - right direction can be adjusted through the first scale, so that the center of the battery under test 70 is aligned with the middle position of the pressure detection mounting member 42 in the left - right direction.

[0081] In addition, as Figure 13 shown, a second sliding groove 6121 is provided on the clamping member 612, and the second sliding groove 6121 extends in the front - rear direction. The second sliding groove 6121 is provided on the surface of the left clamping member 612 facing the left, and the second sliding groove 6121 is provided on the surface of the right clamping member 612 facing the right.

[0082] The second - direction positioning member 602 includes two second sliders (not shown due to occlusion) and an abutting member 621. The abutting member 621 is strip - shaped, the length of the abutting member 621 extends in the left - right direction, one end of the abutting member 621 is connected to one second slider, and the other end is connected to the other second slider. The second sliders are in sliding fit with the second sliding groove 6121. The abutting member 621 can limit the position of the battery under test 70 in the front - rear direction.

[0083] Wherein, a second scale (not shown) extending in the front - rear direction is provided on the clamping member 612. Through the second scale, the position of the battery under test 70 in the front - rear direction can be adjusted, so that the center of the battery under test 70 is aligned with the middle position of the pressure detection mounting member 42 in the front - rear direction.

[0084] As an implementable manner, as Figure 3 and Figure 4 shown, the battery detection tooling further includes a pressure adjustment assembly 50, and the pressure adjustment assembly 50 is arranged between the pressure detection mounting member 42 and the pressing plate 30.

[0085] As Figure 10 and Figure 11 shown, the pressure adjustment assembly 50 includes a pressure adjustment mounting member 51 and a plurality of pressure adjustment units (not shown due to occlusion). The plurality of pressure adjustment units are arranged in a rectangular array, the pressure adjustment units correspond to the pressure detection units 41 one by one, and the pressure adjustment units are in contact with the first surface of the battery under test 70. Of course, it can be understood that the plurality of pressure adjustment units can be arranged in a circular array.

[0086] Among them, the pressure adjustment monomer can be an electronically controlled pressure adjustment mechanism, and the pressure adjustment monomer can adjust the pressure magnitudes of different regions of the battery under test 70. Since the expansion force parameters of different regions of the battery under test 70 obtained by each pressure detection monomer 41 are different, correspondingly, the pressure adjustment monomer makes the pressures of each region of the battery under test 70 equal according to the expansion forces of different regions of the battery under test 70, avoiding excessive or too small expansion force in local areas of the battery, and improving the battery service life and cycle performance.

[0087] As Figure 10 shown, the pressure adjustment mounting member 51 is plate-shaped and has a second accommodation cavity 501, and the second accommodation cavity 501 is groove-shaped. The pressure adjustment mounting member 51 is located between the pressure detection mounting member 42 and the pressing plate 30, the pressure adjustment mounting member 51 is in contact with the pressing plate 30, and the pressure adjustment mounting member 51 and the pressure detection mounting member 42 are opposite and spaced apart. A plurality of guide posts 14 respectively pass through the periphery of the pressure adjustment mounting member 51.

[0088] The second accommodation cavity 501 is provided with a second partition assembly 52, and the second partition assembly 521 is detachably connected to the second accommodation cavity 50. The second partition assembly 52 divides the second accommodation cavity 501 into a plurality of pressure adjustment chambers 5011 in a rectangular array, and the pressure adjustment chambers 5011 correspond to the pressure adjustment monomers one by one, and the pressure adjustment monomers are arranged in the pressure adjustment chambers 5011.

[0089] In this way, the pressure adjustment chambers 5011 can limit the degrees of freedom of the pressure adjustment monomers, so that each pressure adjustment monomer stably detects the area of the first surface of the corresponding battery under test 70, avoiding mutual interference and influence between adjacent two pressure adjustment monomers.

[0090] Specifically, as Figure 10 shown, the second partition assembly 52 is the same as the first partition assembly 43. The second partition assembly 52 is detachably connected to the second accommodation cavity 501. Referring to the detachable connection of the first partition assembly 43 to the first accommodation cavity 402 above, it will not be elaborated here.

[0091] Among them, as Figure 11 shown, threaded holes 5012 or blind holes are provided on the bottom of the second accommodation cavity 501, and the insert members in the second partition assembly 52 can be threadedly connected or inserted and connected to the bottom of the second accommodation cavity 501. By adjusting the positions and quantities of the insert members in the second partition assembly 52, it is helpful to select the appropriate number of pressure detection monomers 41 according to the size of the battery under test 70, as Figure 11 shown. At the same time, the assembly is convenient and the production cost is low.

[0092] The example of the present utility model further provides a lithium battery detection device, including the above-mentioned battery detection tooling.

[0093] The lithium battery detection device has the advantages of a battery detection tooling, so it will not be elaborated here.

[0094] It should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the above text is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0095] The above description is only the preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solution formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A battery detection tooling, characterized in that, Comprising: A pressing plate (30) for limiting the battery under test (70); A pressure detection assembly (40) opposite to and spaced from the pressing plate (30), at least for placing the battery under test (70), The pressure detection assembly (40) includes a plurality of pressure detection monomers (41) arranged in an array, and the sum of the surface areas of the surfaces of each of the pressure detection monomers (41) facing the battery under test (70) is greater than or equal to the surface area of the battery under test (70) facing the pressure detection monomers (41).

2. The battery detection tooling according to claim 1, wherein The pressure detection assembly (40) further includes a pressure detection mounting member (42) opposite to and spaced from the pressing plate (30), The pressure detection mounting member (42) has a first accommodation cavity (402), the first accommodation cavity (402) is provided with a first partition assembly (43), the first partition assembly (43) is detachably connected to the first accommodation cavity (402), and the first partition assembly (43) divides the first accommodation cavity (402) into a plurality of pressure detection chambers (4021) distributed in an array, The pressure detection chambers (4021) correspond to the pressure detection monomers (41) one by one, and the pressure detection monomers (41) are arranged in the pressure detection chambers (4021).

3. The battery detection tooling according to claim 2, wherein The first partition assembly (43) includes a plurality of first-direction partition plates (431) and a plurality of second-direction partition plates (432), the plurality of first-direction partition plates (431) and the plurality of second-direction partition plates (432) are arranged in a cross shape, one of the first direction and the second direction is parallel to the length or width direction of the battery under test (70), and the first direction is perpendicular to the second direction; The first-direction partition plates (431) are in insertion fit with the cavity wall of the first accommodation cavity (402), and the second-direction partition plates (432) are in insertion fit with the cavity wall of the first accommodation cavity (402).

4. The battery detection tooling according to claim 3, wherein The first-direction partition plates (431) and the second-direction partition plates (432) are integrally formed, or The first-direction partition plates (431) and the second-direction partition plates (432) are separately provided, and the first-direction partition plates (431) and the second-direction partition plates (432) are in insertion fit at the intersection position, or the first-direction partition plates (431) and the second-direction partition plates (432) are in insertion fit at the intersection position through an insertion member (433).

5. The battery detection tooling according to claim 2, wherein It further includes a battery positioning assembly (60), and the battery positioning assembly (60) includes a first-direction positioning member (601) and a second-direction positioning member (602), The first-direction positioning member (601) and the second-direction positioning member (602) are in positioning cooperation with the battery under test (70) so that the first accommodation cavity (402) corresponds to the battery under test (70). In the third direction, the orthographic projection of the battery under test (70) on the pressure detection mounting member (42) along the third direction is located within the first accommodation cavity (402) or coincides with the first accommodation cavity (402), and the third direction is perpendicular to the first direction and the second direction respectively.

6. The battery detection tooling according to claim 5, wherein The pressure detection mounting member (42) is plate-shaped, and a first sliding groove (421) is provided on the side surface of the pressure detection mounting member (42) parallel to the first direction; The first-direction positioning member (601) includes two oppositely arranged clamping members (612), and the clamping members (612) are in sliding cooperation with the first sliding groove (421). Among them, a second sliding groove (6121) is provided on the clamping member (612); The second-direction positioning member (602) includes an abutting member (621), and the abutting member (621) is in sliding cooperation with the second sliding groove (6121).

7. The battery detection tooling according to claim 6, characterized in that A first scale along the first direction is provided on the side surface of the pressure detection mounting member (42); the clamping member (612) extends along the second direction, and a second scale along the second direction is provided on the clamping member (612).

8. The battery detection tooling according to claim 2, wherein, It further includes a pressure adjustment assembly (50), and the pressure adjustment assembly (50) is arranged between the pressure detection mounting member (42) and the pressing plate (30). The pressure adjustment assembly (50) includes a plurality of pressure adjustment units arranged in an array, and the pressure adjustment units correspond to the pressure detection units (41) one by one. The pressure adjustment unit is in contact with the first surface of the battery under test (70), and the pressure detection unit (41) is in contact with the second surface of the battery under test (70).

9. The battery detection tooling according to claim 8, wherein, The pressure adjustment assembly (50) further includes a pressure adjustment mounting member (51) that is opposite to and spaced apart from the pressure detection mounting member (42). The pressure adjustment mounting member (51) has a second accommodation cavity (501), and a second partitioning assembly (52) is provided in the second accommodation cavity (501). The second partitioning assembly (52) is detachably connected to the second accommodation cavity (501), and the second partitioning assembly (52) divides the second accommodation cavity (501) into a plurality of pressure adjustment chambers (5011) distributed in an array. The pressure adjustment chambers (5011) correspond to the pressure adjustment units one by one, and the pressure adjustment units are arranged in the pressure adjustment chambers (5011).

10. A battery detection device, characterized in that, It includes the battery detection tooling according to any one of claims 1-9.

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