Test tool for battery module

Abstract

The utility model discloses a test tool for a battery module, which comprises a liquid cooling plate and a mounting seat, the outer side wall of the liquid cooling plate is provided with a first guide structure, and the liquid cooling plate is used for being in heat conduction contact with the battery module; the mounting seat is used for placing a battery module, a second guide structure is arranged at the bottom of the mounting seat, and the first guide structure and the second guide structure are in sliding fit so that the mounting seat can slide relative to the liquid cooling plate to adjust the position. The battery module is placed through the mounting base, the liquid cooling plate is in heat conduction contact with the battery module to simulate the liquid cooling or liquid heating working environment of the battery module, and under the guiding effect of the guiding structure, the mounting base can slide relative to the liquid cooling plate to adjust the position so as to achieve position adjustment of the battery module. According to the testing tool, the battery modules of various sizes can be in good heat conduction contact with the liquid cooling plate, the testing tool can be applied to testing of the battery modules of various sizes, the universality is high, and the purposes of improving the utilization efficiency of the tool and improving the testing accuracy are achieved.

Description

Technical Field

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

[0002] When the existing test tooling performs type tests on battery modules, such as rate charge and discharge tests, high-temperature charge and discharge capacity tests, and high and low temperature tests, it is necessary to simulate the use of liquid cooling or liquid heating. Therefore, the test tooling usually also needs to borrow the liquid cooling plate of the battery pack. However, the liquid cooling plate can usually only be used to place battery modules of a specific size, and can only form good thermal contact with battery modules of a specific size. After the test, it is usually scrapped, resulting in waste, and the versatility of the test tooling is poor. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art described above, the utility model provides a test fixture for a battery module, aiming to solve the problem of poor versatility of the existing test fixtures for battery modules.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] A test fixture for a battery module comprises: a liquid cooling plate, an outer side wall of the liquid cooling plate is provided with a first guide structure, the liquid cooling plate is used for thermal contact with the battery module; a mounting seat, the mounting seat is used for placing the battery module, a second guide structure is provided at the bottom of the mounting seat, the first guide structure and the second guide structure are slidably matched so that the mounting seat can slide relative to the liquid cooling plate to adjust the position.

[0006] According to some embodiments of the present invention, at least two liquid cooling plates are provided, and two adjacent liquid cooling plates are spliced ​​with each other.

[0007] According to some embodiments of the present invention, a splicing block is provided on one side of the liquid cooling plate, and a splicing groove is provided on the other side of the liquid cooling plate, and the splicing block of one liquid cooling plate can be spliced ​​with the splicing groove of another liquid cooling plate.

[0008] According to some embodiments of the present invention, the first guide structure is a slide rail, the second guide structure is a slide groove, the slide rail is convexly arranged on the outer side wall of the liquid cooling plate, and the slide groove is concavely arranged on the bottom of the mounting seat.

[0009] According to some embodiments of the present invention, the test fixture further includes a positioning member, wherein the positioning member is connected to the mounting seat, and the positioning member is used to fix the position of the mounting seat.

[0010] According to some embodiments of the utility model, the positioning member is a positioning screw, which is threaded on the mounting seat, one end of the positioning screw abuts against the outer wall of the liquid cooling plate, and the slide groove has a limiting side wall. Rotating the positioning screw can lift the mounting seat along the axial direction of the positioning screw so that the limiting side wall and the outer wall of the slide rail abut against each other and are fixed.

[0011] According to some embodiments of the present invention, the slide groove is a first dovetail groove that is narrow on the outside and wide on the inside, and the first dovetail groove has two opposite limiting side walls.

[0012] According to some embodiments of the present utility model, the splicing groove is a second dovetail groove which is narrow on the outside and wide on the inside, and the splicing block is a dovetail block which is snap-fitted with the second dovetail groove.

[0013] According to some embodiments of the present invention, the mounting seat includes a first mounting seat and a second mounting seat of different sizes.

[0014] According to some embodiments of the present utility model, a handle is provided on the mounting seat.

[0015] According to some embodiments of the present invention, a flow channel is provided inside the liquid cooling plate, and a support column is provided inside the flow channel.

[0016] According to some embodiments of the present invention, a flow channel is provided inside the liquid cooling plate, and support columns distributed at intervals are provided inside the flow channel.

[0017] According to some embodiments of the present invention, the support column includes a first support column and a second support column, the first support column is in the shape of an elongated strip, the second support column is in the shape of a column, and the first support column and the second support column are alternately arranged along the length direction or the width direction of the liquid cooling plate.

[0018] According to some embodiments of the present invention, a reinforcing rib is connected between the first support column and the second support column.

[0019] In summary, the test tool for battery modules provided by the utility model has at least the following technical effects:

[0020] The battery module is placed on the mounting seat, and the liquid cooling plate is in thermal contact with the battery module to simulate the liquid cooling or liquid heating working environment of the battery module. Under the guidance of the first guide structure and the second guide structure, the mounting seat can slide relative to the liquid cooling plate to adjust the position to achieve position adjustment of the battery module. In this way, battery modules of various sizes can form good thermal contact with the liquid cooling plate. The test fixture can be applied to the testing of battery modules of various sizes, with high versatility, so as to achieve the purpose of improving the utilization efficiency of the fixture and improving the test accuracy, and also save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a test tool according to an embodiment of the utility model at a first viewing angle;

[0022] Figure 2 for Figure 1 A partial enlarged view of the middle A part;

[0023] Figure 3 It is a structural schematic diagram of the test tooling of an embodiment of the utility model at a second viewing angle;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the liquid cooling plate according to an embodiment of the utility model.

[0025] The meanings of the reference numerals are as follows:

[0026] 1. Liquid cooling plate; 11. First guide structure; 12. Flow channel; 13. Support column; 131. First support column; 132. Second support column; 14. Reinforcement rib; 15. Joint block; 16. Joint groove; 17. Liquid cooling pipe joint; 2. Mounting seat; 21. First mounting seat; 22. Second mounting seat; 23. Second guide structure; 231. Limiting side wall; 24. Handle; 25. Fixing hole; 3. Positioning piece; 4. Battery module. DETAILED DESCRIPTION

[0027] 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.

[0028] 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" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and 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, and therefore cannot be understood as a limitation on the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled 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.

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] See also Figure 1 and Figure 2 The utility model discloses a test fixture for a battery module, which includes a liquid cooling plate 1 and a mounting seat 2. The liquid cooling plate 1 is used to be in thermal contact with a battery module 4 to simulate a liquid cooling or liquid heating working environment of the battery module 4, and the mounting seat 2 is used to place the battery module 4; further, the outer side wall of the liquid cooling plate 1 is provided with a first guide structure 11, and the bottom of the mounting seat 2 is provided with a second guide structure 23. The first guide structure 11 and the second guide structure 23 are slidably matched so that the mounting seat 2 can slide relative to the liquid cooling plate 1 to adjust the position.

[0032] The test fixture for battery modules provided in this embodiment places the battery module through the mounting seat 2, and thermally contacts the battery module 4 through the liquid cooling plate 1 to simulate the liquid cooling or liquid heating working environment of the battery module 4. Under the guidance of the first guide structure 11 and the second guide structure 23, the mounting seat 2 can slide relative to the liquid cooling plate 1 to adjust the position to achieve position adjustment of the battery module 4. In this way, battery modules 4 of various sizes can form good thermally conductive contact with the liquid cooling plate 1. The test fixture can be applied to the testing of battery modules 4 of various sizes, has high versatility, so as to achieve the purpose of improving the utilization efficiency of the fixture and improving the test accuracy, and can also save costs.

[0033] Specifically, after the battery module 4 is moved to a suitable position by sliding the mounting base 2, other detection components can be set to electrically connect the battery module 4 to implement a variety of tests on the battery module 4, such as rate charge and discharge test, high temperature charge and discharge test, and high and low temperature test.

[0034] like Figure 1 As shown, further, in the present embodiment, at least two liquid cooling plates 1 are provided, and two adjacent liquid cooling plates 1 are spliced ​​with each other, so that the two adjacent liquid cooling plates 1 can be flexibly disassembled and spliced, and the liquid cooling plates 1 can be spliced ​​according to actual needs. The test tooling can be fully applied to the testing of battery modules 4 of any size, which is simple and applicable, and the versatility of the test tooling is further improved. Moreover, in the face of battery modules 4 of different sizes, the liquid cooling plates 1 do not need to be designed and manufactured separately, which greatly reduces the manpower and material costs; in addition, battery modules 4 of different sizes can be tested with the same set of liquid cooling plates 1. If a comparative experiment of different battery modules 4 is performed, the test tooling provided in the present embodiment can ensure the consistency of the test environment.

[0035] For example, the test fixture of this embodiment can be used for, but is not limited to, a battery module 4 of 1 in parallel and 4 in series, 1 in parallel and 5 in series, 1 in parallel and 6 in series, 2 in parallel and 3 in series, etc.

[0036] like Figure 1 and Figure 3As shown, specifically, in this embodiment, a splicing block 15 is provided on one side of the liquid cooling plate 1, and a splicing groove 16 is provided on the other side of the liquid cooling plate 1, and the splicing block 15 of one liquid cooling plate 1 can be spliced ​​with the splicing groove 16 of another liquid cooling plate 1.

[0037] like Figure 1 and Figure 2 As shown, preferably, in this embodiment, the first guide structure 11 is a slide rail, the second guide structure 23 is a slide groove, the slide rail is convexly arranged on the outer wall of the liquid cooling plate 1, and the slide groove is concavely arranged on the bottom of the mounting seat 2. In this way, the setting of the slide rail will not affect the structural strength of the liquid cooling plate 1 and the flow channel 12 inside the liquid cooling plate 1, thereby ensuring that the liquid cooling plate 1 has a good liquid cooling effect or liquid heating effect.

[0038] like Figure 1 and Figure 2 As shown, preferably, in this embodiment, the test tooling also includes a positioning member 3, which is connected to the mounting seat 2, and the positioning member 3 is used to fix the position of the mounting seat 2. In this way, the position of the mounting seat 2 can be fixed by the positioning member 3 after the mounting seat 2 slides into place, thereby avoiding the problem of shaking of the mounting seat 2 after sliding into place.

[0039] Preferably, in this embodiment, the positioning member 3 is a positioning screw, which is vertically arranged and screwed to the mounting base 2, one end of the positioning screw abuts against the outer wall of the liquid cooling plate 1, and the slide groove has a limiting side wall 231. The mounting base 2 can be lifted up along the axial direction of the positioning screw by rotating the positioning screw so that the limiting side wall 231 and the outer wall of the slide rail are abutted and fixed. In this way, after the mounting base 2 is slid to the appropriate position, the positioning screw can be twisted to fix the position of the mounting base 2 and thus fix the battery module 4. It has the advantages of easy installation, simple structure, easy function realization and low production cost.

[0040] It should be noted that, in some other embodiments, the positioning member 3 may also be, but is not limited to, a limit column or a limit baffle, etc., which can be selected according to actual needs and is not limited here.

[0041] like Figure 2 As shown, more preferably, in this embodiment, the slide groove is a first dovetail groove which is narrow on the outside and wide on the inside, and the first dovetail groove has two opposite limiting side walls 231. In this way, when the positioning screw lifts up the mounting seat 2, the two limiting side walls 231 of the first dovetail groove can be respectively abutted and fixed with the outer side walls of the slide rail, thereby more stably and reliably fixing the position of the mounting seat 2.

[0042] like Figure 1 and Figure 3 As shown, preferably, in this embodiment, the splicing groove 16 is a second dovetail groove that is narrow on the outside and wide on the inside, and the splicing block 15 is a dovetail block that is snap-fitted with the second dovetail groove, so that both the splicing stability and splicing efficiency can be guaranteed.

[0043] like Figure 1 and Figure 3 As shown, preferably, in this embodiment, the mounting seat 2 may include a first mounting seat 21 and a second mounting seat 22 of different sizes, so that the mounting seat 2 of appropriate size can be selected according to the size of the battery module 4 to prevent the battery module 4. More specifically, in this embodiment, two first mounting seats 21 are provided, two second mounting seats 22 are provided, and each mounting seat 2 is provided with a fixing hole 25 for fixing the battery module 4, the two first mounting seats 21 are arranged oppositely, the two second mounting seats 22 are arranged oppositely, and the battery module 4 is placed between the two first mounting seats 21 or between the two second mounting seats 22.

[0044] It should be noted that, in some other embodiments, the mounting seat 2 may also include, but is not limited to, a third mounting seat, a fourth mounting seat, and a fifth mounting seat of different sizes, etc., which can be selected according to actual needs.

[0045] like Figure 1 and Figure 2 As shown, preferably, in this embodiment, a handle 24 for a person to hold is provided on the mounting base 2 to facilitate the person to push the mounting base 2.

[0046] like Figure 4 As shown, preferably, in this embodiment, a flow channel 12 is provided inside the liquid cooling plate 1. In order to ensure the structural strength of the liquid cooling plate 1, a support column 13 is provided inside the flow channel 12. Preferably, the support column 13 includes a first support column 131 and a second support column 132. The first support column 131 is in the shape of a long strip, and the second support column 132 is in the shape of a column. The first support column 131 and the second support column 132 are alternately arranged along the length direction or the width direction of the liquid cooling plate 1. At the same time, a reinforcing rib 14 is connected between the first support column 131 and the second support column 132 to further improve the structural strength. More preferably, in this embodiment, the reinforcing rib 14 is connected between the first support column 131 and the second support column 132 to form an X shape.

[0047] Specifically, in this embodiment, the liquid cooling plate 1 is further provided with a liquid cooling pipe joint 17 .

[0048] In summary, the test fixture for battery modules disclosed in the utility model can at least bring the following beneficial technical effects:

[0049] 1) Battery modules 4 of various sizes can form good thermal contact with the liquid cooling plate 1. The test tooling can be applied to the testing of battery modules 4 of various sizes, and has high versatility, so as to achieve the purpose of improving the utilization efficiency of the tooling and the accuracy of the test, and can also save costs;

[0050] 2) Two adjacent liquid cooling plates 1 can be flexibly disassembled and assembled, and the liquid cooling plates 1 can be assembled according to actual needs. The test tooling can be fully applied to the test of battery modules 4 of any size. It is simple and applicable, and the versatility of the test tooling is further improved; and in the face of battery modules 4 of different sizes, the liquid cooling plates 1 do not need to be designed and manufactured separately, which greatly reduces the manpower and material costs;

[0051] 3) Battery modules 4 of different sizes can be tested with the same set of liquid cooling plates 1. If a comparative experiment is performed on different battery modules 4, the test fixture provided in this embodiment can ensure the consistency of the test environment;

[0052] 4) After sliding the mounting base 2 to a proper position, the positioning screws can be twisted to fix the position of the mounting base 2 and thus fix the battery module 4. The installation is convenient, the structure is simple, the function is easy to realize, and the production cost is low.

[0053] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. Test fixture for battery modules, It is characterized in that include: A liquid cooling plate (1), wherein an outer wall of the liquid cooling plate (1) is provided with a first guide structure (11), and the liquid cooling plate (1) is used for thermally conductive contact with a battery module (4); A mounting seat (2), the mounting seat (2) being used to place the battery module (4), a second guide structure (23) being provided at the bottom of the mounting seat (2), the first guide structure (11) and the second guide structure (23) being slidably matched so that the mounting seat (2) can slide relative to the liquid cooling plate (1) to adjust its position.

2. The test tool according to claim 1, It is characterized in that At least two of the liquid cooling plates (1) are provided, and two adjacent liquid cooling plates (1) are spliced ​​with each other.

3. The test tool according to claim 2, It is characterized in that A splicing block (15) is provided on one side of the liquid cooling plate (1), and a splicing groove (16) is provided on the other side of the liquid cooling plate (1), wherein the splicing block (15) of one liquid cooling plate (1) can be spliced ​​with the splicing groove (16) of another liquid cooling plate (1).

4. The test tool according to any one of claims 1 to 3, It is characterized in that The first guide structure (11) is a slide rail, and the second guide structure (23) is a slide groove. The slide rail is convexly arranged on the outer side wall of the liquid cooling plate (1), and the slide groove is concavely arranged on the bottom of the mounting seat (2).

5. The test tool according to claim 4, It is characterized in that The testing tool further comprises a positioning member (3), wherein the positioning member (3) is connected to the mounting seat (2), and the positioning member (3) is used to fix the position of the mounting seat (2).

6. The test tool according to claim 5, It is characterized in that The positioning member (3) is a positioning screw, which is threadedly connected to the mounting seat (2). One end of the positioning screw abuts against the outer wall of the liquid cooling plate (1). The slide groove has a limiting side wall (231). By rotating the positioning screw, the mounting seat (2) can be lifted along the axial direction of the positioning screw so that the limiting side wall (231) and the outer wall of the slide rail are abutted and fixed.

7. The test tool according to claim 6, It is characterized in that The sliding groove is a first dovetail groove which is narrow on the outside and wide on the inside, and the first dovetail groove has two opposite limiting side walls (231).

8. The test tool according to claim 3, It is characterized in that The splicing groove (16) is a second dovetail groove that is narrow on the outside and wide on the inside, and the splicing block (15) is a dovetail block that is snap-fitted with the second dovetail groove.

9. The test tool according to claim 1 or 2 or 3 or 5 or 6 or 7 or 8, It is characterized in that The mounting seat (2) comprises a first mounting seat (21) and a second mounting seat (22) of different sizes.

10. The test tool according to claim 1 or 2 or 3 or 5 or 6 or 7 or 8, It is characterized in that The mounting seat (2) is provided with a handle (24).

11. The test tool according to claim 1 or 2 or 3 or 5 or 6 or 7 or 8, It is characterized in that A flow channel (12) is provided inside the liquid cooling plate (1), and support columns (13) are provided inside the flow channel (12) at intervals.

12. The test tool according to claim 11, It is characterized in that The support column (13) comprises a first support column (131) and a second support column (132); the first support column (131) is in the shape of an elongated strip, and the second support column (132) is in the shape of a column; the first support column (131) and the second support column (132) are alternately arranged in a length direction or a width direction of the liquid cooling plate (1).

13. The test tool according to claim 12, It is characterized in that A reinforcing rib (14) is connected between the first support column (131) and the second support column (132).

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