Battery extrusion test tool

Abstract

The utility model provides a battery extrusion test tool. The battery extrusion test tool comprises a mounting plate; the extrusion vertical plate is vertically arranged on the mounting plate, and at least two clamping groove openings which are formed at intervals are formed in the side, facing the extrusion vertical plate, of the mounting plate; and at least one part of the extrusion clamping plate is movably connected with the extrusion vertical plate, an extrusion space is defined by the extrusion clamping plate and the extrusion vertical plate, and the extrusion clamping plate can move in the direction close to or away from the extrusion vertical plate so as to adjust the size of the extrusion space. According to the utility model, the problem of poor cell test effect in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, and more specifically, to a battery compression testing fixture. Background Technology

[0002] With the development of battery design, the battery production process needs to meet the verification of cell extrusion tests in different directions as required by national standards. However, due to the differences in cell size, it is difficult to fix the cells during the test, or the cells are prone to move during the test, resulting in large errors in the test results, which is not conducive to the determination of safety performance.

[0003] Therefore, existing technologies suffer from poor cell testing results. Utility Model Content

[0004] The main purpose of this invention is to provide a battery compression testing fixture to solve the problem of poor cell testing results in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a battery compression testing fixture is provided, comprising: a mounting plate; a compression stand erected on the mounting plate, the mounting plate having at least two spaced slots on the side facing the compression stand; and a compression clamp, at least a portion of which is movably connected to the compression stand and forms a compression space with the compression stand, and the compression clamp is movable in a direction close to or away from the compression stand to adjust the size of the compression space.

[0006] Furthermore, the end of the extrusion plate near the mounting plate is provided with at least one clearance notch corresponding to the slot, and the opening direction of the clearance notch faces the slot.

[0007] Furthermore, the width of the clearance notch is greater than or equal to the width of the slot opening.

[0008] Furthermore, the extrusion uprights and extrusion clamps are parallel to each other.

[0009] Furthermore, the end of the extrusion clamp near the mounting plate has a clearance gap with the mounting plate.

[0010] Furthermore, there are two slots, which are parallel to each other; and / or the length direction of the slots is parallel to the thickness direction of the extrusion plate and / or the thickness direction of the extrusion clamp.

[0011] Furthermore, the distance between the two slots is less than the length of the extrusion plate and / or the length of the extrusion clamp.

[0012] Furthermore, the battery extrusion test fixture also includes a guide assembly, which is located on the side of the extrusion stand facing the extrusion clamp, and the extrusion clamp is movably connected to the extrusion stand through the guide assembly and can move along the guide assembly.

[0013] Furthermore, the extrusion plate is disposed on the side of the mounting plate, and the side has a connecting opening that communicates with the slot.

[0014] Furthermore, the battery extrusion test fixture also includes at least two mounting arms. At least one mounting arm is erected on each of the two sides of the extrusion plate at both ends of the length direction, and the two ends of the extrusion plate in the length direction are respectively connected to different mounting arms.

[0015] Applying the technical solution of this utility model, the battery compression testing fixture in this application includes a mounting plate, a compression stand, and a compression clamp. The compression stand is erected on the mounting plate, and the mounting plate has at least two spaced slots on the side facing the compression stand. At least a portion of the compression clamp is movably connected to the compression stand and forms a compression space with the compression stand, and the compression clamp can move in a direction close to or away from the compression stand to adjust the size of the compression space.

[0016] When using the battery extrusion testing fixture of this application, the extrusion stand and extrusion clamp are included, and the extrusion clamp can move relative to the extrusion stand in a direction close to or away from the extrusion stand, thereby adjusting the size of the extrusion space. Therefore, before extruding the battery cell, the cell can be placed between the extrusion stand and the extrusion clamp, and then the extrusion clamp can be adjusted to clamp or position the cell. Simultaneously, since the mounting stand is also provided with slots, it can provide accommodating space for the battery cell's terminals and contacts, preventing damage to the terminals and contacts during the clamping process. Therefore, this application can clamp or position the battery cell using the extrusion stand and extrusion clamp, thereby preventing movement during the extrusion test and ensuring the testing effect. Thus, the battery extrusion fixture of this application effectively solves the problem of poor cell testing results in the prior art. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the structure of a battery compression test fixture according to a specific embodiment of this application is shown;

[0019] Figure 2It shows Figure 1 A top view of the battery compression test fixture in the image;

[0020] Figure 3 This illustration shows a schematic diagram of the positional relationship between the battery compression test fixture and the battery cell when the battery cell is clamped using a battery compression test fixture in a specific embodiment of this application.

[0021] Figure 4 This illustration shows a schematic diagram of the positional relationship between the battery compression test fixture and the battery cell when the battery cell is clamped using a battery compression test fixture in another specific embodiment of this application.

[0022] The above figures include the following reference numerals:

[0023] 10. Mounting plate; 11. Slot; 12. Connecting opening; 20. Extrusion plate; 21. Clearance notch; 30. Extrusion clamp; 40. Extrusion space; 50. Guide assembly; 60. Mounting arm; 70. Locking element; 80. Battery cell. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0027] To address the issue of poor cell testing results in related technologies, this application provides a battery extrusion testing fixture.

[0028] like Figures 1 to 4 As shown, the battery compression testing fixture in this application includes a mounting plate 10, a compression stand 20, and a compression clamping plate 30. The compression stand 20 is erected on the mounting plate 10, and the mounting plate 10 has at least two spaced slots 11 on the side facing the compression stand 20. At least a portion of the compression clamping plate 30 is movably connected to the compression stand 20 and forms a compression space 40 with the compression stand 20. The compression clamping plate 30 can move in a direction close to or away from the compression stand 20 to adjust the size of the compression space 40.

[0029] When using the battery compression testing fixture of this application, the compression space 40 can be adjusted by having a compression stand 20 and a compression clamp 30, and the compression clamp 30 being able to move relative to the compression stand 20 in a direction close to or away from the compression stand 20. Therefore, before performing a compression test on the battery cell 80, the battery cell 80 can be placed between the compression stand 20 and the compression clamp 30, and then the compression clamp 30 can be adjusted to clamp or position the battery cell 80. Simultaneously, since the mounting stand is also provided with a slot 11, it can provide accommodating space for the battery cell's terminals and contacts, preventing damage to the terminals and contacts during the clamping process of the compression stand 20 and the compression clamp 30. Therefore, this application can clamp or position the battery cell 80 using the compression stand 20 and the compression clamp 30, thereby preventing movement of the battery cell 80 during the compression test and ensuring the test effect of the battery cell 80 compression test. Therefore, the battery extrusion fixture in this application effectively solves the problem of poor cell testing results in the prior art.

[0030] Specifically, the end of the compression plate 20 near the mounting plate 10 is provided with at least one clearance notch 21 corresponding to a slot 11, and the opening direction of the clearance notch 21 faces the slot 11. Figure 3 and Figure 4 As shown, during the extrusion test of the battery cell 80, there may be situations where the extrusion test is performed on both the side and bottom surfaces of the battery cell 80. Therefore, when the depth of the slot 11 is less than the width of the terminal post or terminal bar, if the side of the battery cell 80 needs to be extruded, the slot 11 cannot accommodate the terminal post or terminal bar, making it difficult to clamp or position the battery cell. Therefore, in this application, by providing an avoidance notch 21 at the position corresponding to the slot 11 on the extrusion plate 20, the terminal post or terminal bar of the battery cell can extend from the side of the extrusion plate 20 away from the extrusion clamping plate 30 through the slot 11 and the avoidance notch 21, thereby ensuring that the extrusion plate 20 and the extrusion clamping plate 30 can properly clamp or position the battery cell, thus ensuring the performance of the battery extrusion test fixture.

[0031] Furthermore, it should be noted that when performing a compression test on the side of the battery, the placement of the battery cell will cause the two terminals or terminal plates of the cell to be spaced apart in the vertical direction. Therefore, the height of the compression plate 20 in this application should not be too high, so as to ensure that the other terminal or terminal plate of the battery cell can extend from the top of the compression plate 20. Of course, the specific height of the compression plate 20 can be adjusted adaptively according to actual production and design requirements.

[0032] As can be seen from the above, when clamping the battery cell using the battery extrusion test fixture of this application, the battery cell's terminal post or terminal post tab generally extends from the side of the extrusion stand 20 away from the extrusion clamp 30. Therefore, in this application, an avoidance notch 21 corresponding to the slot 11 is provided on the extrusion stand 20. Of course, in this application, depending on the actual usage requirements, an avoidance notch 21 can also be provided on the extrusion clamp 30 at the position corresponding to the slot 11.

[0033] Optionally, the width of the clearance notch 21 is greater than or equal to the width of the slot opening 11. In one specific embodiment of this application, the width of the clearance notch 21 is equal to the width of the slot opening 11. This arrangement ensures that the terminal post or terminal post tab of the battery cell can extend more easily out of the extrusion space 40, thereby ensuring the clamping or positioning effect of the extrusion plate 20 and the extrusion clamping plate 30 on the battery cell.

[0034] Preferably, the extrusion stand 20 and the extrusion clamping plate 30 are parallel to each other. This arrangement ensures the clamping or positioning effect of the extrusion stand 20 and the extrusion clamping plate 30 on the battery cell, thereby guaranteeing the performance of the battery extrusion testing fixture.

[0035] Optionally, the end of the extrusion clamp 30 closest to the mounting plate 10 has a clearance gap with the mounting plate 10. This arrangement effectively reduces friction between the extrusion clamp 30 and the mounting plate 10 during the adjustment of the distance between them, making it easier to adjust the position of the extrusion clamp 30.

[0036] In one specific embodiment of this application, there are two slots 11, which are parallel to each other. Furthermore, the length direction of the slots 11 is parallel to the thickness direction of the extrusion plate 20 and the thickness direction of the extrusion clamp 30. The purpose of providing two slots 11 is to ensure that, during the extrusion test on the bottom surface of the battery cell, the two terminals or terminal plates of the battery cell can extend from or be accommodated through the two slots 11.

[0037] Of course, in this application, the width of the slot 11 is greater than the width of the cell terminal post or terminal bar, thereby ensuring that the battery extrusion test fixture of this application can be applied to cells of different sizes.

[0038] Specifically, the distance between the two slots 11 is less than the length of the extrusion plate 20 and the length of the extrusion clamp 30.

[0039] Specifically, the battery extrusion testing fixture also includes a guide assembly 50, which is disposed on the side of the extrusion stand 20 facing the extrusion clamp 30. The extrusion clamp 30 is movably connected to the extrusion stand 20 via the guide assembly 50 and can move along the guide assembly 50. By setting the guide assembly 50, the movement direction of the extrusion clamp 30 can be effectively guided and limited. Furthermore, in this application, the guide assembly 50 can be a guide rod disposed at both ends of the length direction of the extrusion stand 20, and the battery extrusion testing fixture can also include a locking member 70 disposed on the guide assembly 50, thereby locking the extrusion clamp 30 after it is adjusted to a suitable position, thus ensuring the clamping or positioning effect of the extrusion stand 20 and the extrusion clamp 30 on the battery cell. The locking member 70 can be a locking nut, and the guide rod has a thread that mates with the locking nut.

[0040] Optionally, the extrusion stand 20 is disposed on the side of the mounting plate 10, and the side has a communication opening 12 that communicates with the slot 11. This arrangement can effectively achieve the miniaturization design of the battery extrusion test fixture. The communication opening ensures that the terminal post or terminal post tab of the battery cell can extend out of the extrusion space 40 from the side of the extrusion stand 20 away from the extrusion clamp 30 through the slot 11.

[0041] Optionally, the battery extrusion testing fixture also includes at least two mounting arms 60. At least one mounting arm 60 is erected on each of the two sides of the mounting plate 10 corresponding to both ends of the extrusion stand 20 along its length, and each end of the extrusion stand 20 along its length is connected to a different mounting arm 60. By setting the mounting arms 60, the stability of the extrusion stand 20 can be effectively ensured, thereby improving the clamping or positioning effect of the extrusion stand 20 and the extrusion clamping plate 30 on the battery cell, and thus improving the performance of the battery extrusion testing fixture.

[0042] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0043] 1. Effectively solves the problem of poor cell testing results in existing technologies;

[0044] 2. Simple structure and stable performance.

[0045] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0046] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0047] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery crush test fixture, characterized by, The utility model relates to a battery extrusion test tool, including: Mounting plate (10); Extrusion vertical plate (20), the extrusion vertical plate (20) is set up on the mounting plate (10), and the one side of the mounting plate (10) towards the extrusion vertical plate (20) has at least two interval setting's clamping slot (11); Extrusion clamping plate (30), at least a part of the extrusion clamping plate (30) is movably connected with the extrusion vertical plate (20) and is surrounded with the extrusion vertical plate (20) and forms extrusion space (40), and the extrusion clamping plate (30) can move in the direction close to or away from the extrusion vertical plate (20) to adjust the size of the extrusion space (40).

2. The battery crush test fixture of claim 1, wherein, The extrusion vertical plate (20) is provided with an avoidance notch (21) corresponding to at least one clamping slot (11) at one end close to the mounting plate (10), and the opening direction of the avoidance notch (21) is towards the clamping slot (11).

3. The battery crush test fixture of claim 2, wherein, The width of the avoidance notch (21) is greater than or equal to the width of the clamping slot (11).

4. The battery crush test fixture of claim 1, wherein, The extrusion vertical plate (20) and the extrusion clamping plate (30) are parallel to each other.

5. The battery crush test fixture of claim 1, wherein, The extrusion clamping plate (30) has an avoidance gap between one end close to the mounting plate (10) and the mounting plate (10).

6. The battery crush test fixture of any one of claims 1 to 5, wherein, The clamping slot (11) is two, The two clamping slots (11) are parallel to each other; and / or The length direction of the clamping slot (11) is parallel to the thickness direction of the extrusion vertical plate (20) and / or the thickness direction of the extrusion clamping plate (30).

7. The battery crush test fixture of claim 6, wherein, The distance between the two clamping slots (11) is less than the length of the extrusion vertical plate (20) and / or the length of the extrusion clamping plate (30).

8. The battery crush test fixture of any one of claims 1-5, wherein, The battery extrusion test tool further comprises a guide assembly (50) provided on the side of the extrusion vertical plate (20) towards the extrusion clamping plate (30), and the extrusion clamping plate (30) is movably connected with the extrusion vertical plate (20) through the guide assembly (50) and can move along the guide assembly (50).

9. The battery crush test fixture of any one of claims 1-5, wherein, The extrusion vertical plate (20) is provided on the side edge of the mounting plate (10), and the side edge has a communication opening (12) communicating with the clamping slot (11).

10. The battery crush test fixture of claim 9, wherein, The battery extrusion test tool further comprises at least two mounting arms (60), and the mounting plate (10) is provided with at least one mounting arm (60) on each of the two side edges corresponding to the length direction of the extrusion vertical plate (20), and the two ends of the length direction of the extrusion vertical plate (20) are connected with different mounting arms (60) respectively.

Images