Battery cell extrusion auxiliary tool
By designing a combined assembled battery-cell extrusion auxiliary tooling, the problem that the existing technology requires three types of tooling to achieve three-direction extrusion tests is solved, and the X, Y, and Z direction extrusion tests are completed in one tooling, saving costs and improving testing efficiency.
Patent Information
- Application Number
- CN202420500322.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-14
AI Technical Summary
The existing battery cell extrusion auxiliary tooling requires three different toolings to achieve extrusion testing in three directions, resulting in waste of development and production costs.
A battery cell extrusion auxiliary tooling is designed, and the extrusion test in three directions of the test battery cell is realized by combining the assembly of the first vertical plate, the first long flat plate, the first horizontal plate, the second vertical plate, the second horizontal plate, and the second long flat plate.
Through combined assembled tooling, the X, Y, and Z direction extrusion test of the battery cell can be achieved in one tooling, saving development and production costs, and improving the flexibility and efficiency of testing.
Smart Images
Figure CN222561749U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery core testing, in particular to a battery core extrusion auxiliary tooling. Background Art
[0002] Lithium battery safety testing is an important part of the lithium battery development process, so the development of corresponding test tooling is also a very important part; the development of test tooling must meet the requirements of the corresponding standard test conditions, and the reliability and safety of the tooling during the test should also be considered and evaluated; the existing battery cell extrusion auxiliary tooling requires three different toolings when conducting extrusion tests in three directions, which wastes development and production costs. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to use a battery core extrusion auxiliary tooling to realize extrusion test in three directions through combined assembly.
[0004] The utility model solves the above technical problems through the following technical means:
[0005] A battery cell extrusion auxiliary tooling comprises a first vertical plate (1), a first long flat plate (2), a first flat plate (3), a first horizontal plate (4), a second vertical plate (5), a second flat plate (6), a second horizontal plate (7), and a second long flat plate (8); the plates can be assembled and combined to implement an extrusion test of a test battery cell (9) in three directions.
[0006] Beneficial effect: Through the arrangement of the first vertical plate, the first long flat plate, the first flat plate, the first horizontal plate, the second vertical plate, the second flat plate, the second horizontal plate and the second long flat plate, the extrusion test of the test cell in three directions can be achieved through combined assembly.
[0007] Furthermore, the first vertical plate (1) and the second vertical plate (5) are of the same shape and are arranged left and right, the first horizontal plate (4) and the second horizontal plate (7) are of the same shape and are arranged front and back, the first long flat plate (2) and the second long flat plate (8) are of the same shape and are arranged up and down, the first flat plate (3) and the second flat plate (6) are of the same shape and are arranged up and down, the first long flat plate (2) and the first flat plate (3) are both located at the top, and the second long flat plate (8) and the second flat plate (6) are both located at the bottom.
[0008] Furthermore, the first vertical plate (1), the first long flat plate (2), the first flat plate (3), the first horizontal plate (4), the second vertical plate (5), the second flat plate (6), the second horizontal plate (7), and the second long flat plate (8) are combined to form a rectangular space, and the test cell (9) can be placed in the rectangular space.
[0009] Furthermore, the thickness of the first vertical plate (1), the first long flat plate (2), the first flat plate (3), the first transverse plate (4), the second vertical plate (5), the second flat plate (6), the second transverse plate (7), and the second long flat plate (8) is between 10 mm and 20 mm.
[0010] Furthermore, the bolt holes of the first vertical plate (1) and the second vertical plate (5) are designed as countersunk through holes, with an outer diameter of 10-12 mm and an inner diameter of 6-8 mm.
[0011] Furthermore, a first arc (71) is formed on the top wall of the second transverse plate (7), and a second arc (72) is formed on the left wall of the second transverse plate (7). The radius of the arc is greater than 75 mm, and the depth of the depression of the arc is determined according to the size of the test cell (9) and reaches more than 15% of the size of the test cell (9).
[0012] Beneficial effect: through the setting of the first arc and the second arc, the first arc can cooperate with the extrusion head to realize the extrusion test of the test cell in the Z direction, and the second arc can cooperate with the extrusion head to realize the extrusion test of the test cell in the X direction.
[0013] Furthermore, the first transverse plate (4) and the second transverse plate (7) are arranged in a mirror image.
[0014] Furthermore, the first transverse plate (4) and the second transverse plate (7) are designed with waist-shaped through holes, with the short side of the hole being 6-8 mm and the long side being 12-14 mm.
[0015] Furthermore, the holes on the first long plate (2), the first plate (3), the second long plate (8) and the second plate (6) are closed threaded holes with a depth of 10-20 mm and a hole diameter of 6-8 mm.
[0016] Furthermore, a plurality of square holes (61) are provided in the middle of the second flat plate (6) along the Y axis.
[0017] Beneficial effect: The square hole is provided to open the explosion-proof valve to release pressure.
[0018] The advantages of the utility model are:
[0019] The utility model can realize the extrusion test of the test cell in three directions by assembling and assembling the first vertical plate, the first long flat plate, the first flat plate, the first horizontal plate, the second vertical plate, the second flat plate, the second horizontal plate and the second long flat plate.
[0020] The utility model provides the first circular arc and the second circular arc, so that the first circular arc can cooperate with the extrusion head to realize the extrusion test of the test cell in the Z direction, and the second circular arc can cooperate with the extrusion head to realize the extrusion test of the test cell in the X direction.
[0021] The utility model is used for opening the explosion-proof valve to release pressure through the arrangement of the square hole. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a three-dimensional diagram of a battery cell extrusion auxiliary tooling according to a first embodiment of the utility model;
[0023] Figure 2 This is an exploded view of the battery cell extrusion auxiliary tooling of the first embodiment of the utility model;
[0024] Figure 3 This is a schematic diagram of an X-direction extrusion test of a battery cell extrusion auxiliary tooling in accordance with a first embodiment of the utility model;
[0025] Figure 4 This is a schematic diagram of a Z-direction extrusion test of a battery cell extrusion auxiliary tooling in accordance with a first embodiment of the utility model;
[0026] Figure 5 This is a schematic diagram of the Y-direction extrusion test of the battery cell extrusion auxiliary tooling according to the first embodiment of the utility model. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] Embodiment 1
[0029] like Figure 1 , Figure 2 As shown, this embodiment provides a battery cell extrusion auxiliary tooling, including a first vertical plate 1, a first long flat plate 2, a first flat plate 3, a first horizontal plate 4, a second vertical plate 5, a second flat plate 6, a second horizontal plate 7, and a second long flat plate 8.
[0030] like Figure 2As shown, the first vertical plate 1 and the second vertical plate 5 have the same shape and are arranged left and right, the first horizontal plate 4 and the second horizontal plate 7 have the same shape and are arranged front and back, the first long flat plate 2 and the second long flat plate 8 have the same shape and are arranged up and down, the first flat plate 3 and the second flat plate 6 have the same shape and are arranged up and down, the first long flat plate 2 and the first flat plate 3 are both located at the top, and the second long flat plate 8 and the second flat plate 6 are both located at the bottom, the first vertical plate 1, the first long flat plate 2, the first flat plate 3, the first horizontal plate 4, the second vertical plate 5, the second flat plate 6, the second horizontal plate 7, and the second long flat plate 8 are combined with each other to form a rectangular space, and a test battery cell 9 is placed in the rectangular space; the thickness of each plate component is between 10mm and 20mm.
[0031] like Figure 2 As shown, the bolt holes of the first vertical plate 1 and the second vertical plate 5 are designed as countersunk through holes, with 8 holes in number, an outer diameter of 10-12 mm, and an inner diameter of 6-8 mm.
[0032] like Figure 2 As shown, the top wall of the second transverse plate 7 is provided with a first arc 71, and the left wall of the second transverse plate 7 is provided with a second arc 72. The radius of the arc is greater than 75 mm. This design matches the diameter of a standard extrusion head (not shown). The depth of the depression of the arc is determined according to the size of the battery cell, reaching more than 15% of the size of the battery cell; the first transverse plate 4 and the second transverse plate 7 are mirror-set; the first transverse plate 4 and the second transverse plate 7 are designed with waist-shaped through holes for easy assembly, with a short side of 6-8 mm and a long side of 12-14 mm.
[0033] like Figure 2 , Figure 3 As shown, the holes on the first long plate 2, the first plate 3, the second long plate 8 and the second plate 6 are closed threaded holes with a depth of 10-20 mm and a hole diameter of 6-8 mm; a plurality of square holes 61 are opened in the middle position of the second plate 6 along the Y axis. In this embodiment, three square holes 61 are opened in the middle position of the second plate 6 along the Y axis, and the size of the front and rear square holes 61 is larger than that of the middle square hole 61, which is used for the explosion-proof valve to open and release pressure.
[0034] The auxiliary tooling is not fully assembled during use, but is used in corresponding combinations according to different test directions and working conditions; Figure 3 As shown, when performing the X-direction extrusion test, the first flat plate 3, the first horizontal plate 4, the second vertical plate 5, the second flat plate 6, and the second horizontal plate 7 are used to limit and fix the test cell 9, and then the extrusion head (cylindrical shape) is placed at the second arc 72 of the second horizontal plate 7 and the first horizontal plate 4 to extrude the test cell 9 in the X direction; Figure 2 , Figure 4As shown, when performing the Z-direction extrusion test, the first vertical plate 1, the first long flat plate 2, the first horizontal plate 4, the second vertical plate 5, the second flat plate 6, the second horizontal plate 7, and the second long flat plate 8 are used to limit and fix the test cell 9, and then the extrusion head (cylindrical shape) is placed at the first arc 71 of the second horizontal plate 7 and the first horizontal plate 4 to extrude the test cell 9 in the Z direction; Figure 5 As shown, when performing the Y-direction extrusion test, the first vertical plate 1, the first long flat plate 2, the first horizontal plate 4, the second vertical plate 5, and the second long flat plate 8 are used to limit and fix the test cell 9, and then the extrusion head (cylindrical shape) is placed on the test cell 9 to extrude the test cell 9 in the Y-direction; each plate component is connected and fixed by bolts.
[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A battery cell extrusion auxiliary tooling, characterized in that: It comprises a first vertical plate (1), a first long flat plate (2), a first flat plate (3), a first horizontal plate (4), a second vertical plate (5), a second flat plate (6), a second horizontal plate (7), and a second long flat plate (8); The plates can be assembled and combined to implement extrusion testing of the test cell (9) in three directions.
2. The battery cell extrusion auxiliary tooling according to claim 1, characterized in that: The first vertical plate (1) and the second vertical plate (5) are of the same shape and are arranged left and right; the first horizontal plate (4) and the second horizontal plate (7) are of the same shape and are arranged front and back; the first long flat plate (2) and the second long flat plate (8) are of the same shape and are arranged up and down; the first flat plate (3) and the second flat plate (6) are of the same shape and are arranged up and down; the first long flat plate (2) and the first flat plate (3) are both located at the top, and the second long flat plate (8) and the second flat plate (6) are both located at the bottom.
3. The battery cell extrusion auxiliary tooling according to claim 2, characterized in that: The first vertical plate (1), the first long flat plate (2), the first flat plate (3), the first horizontal plate (4), the second vertical plate (5), the second flat plate (6), the second horizontal plate (7), and the second long flat plate (8) are combined to form a rectangular space, and the test cell (9) can be placed in the rectangular space.
4. The battery cell extrusion auxiliary tooling according to claim 1, characterized in that: The thickness of the first vertical plate (1), the first long flat plate (2), the first flat plate (3), the first transverse plate (4), the second vertical plate (5), the second flat plate (6), the second transverse plate (7) and the second long flat plate (8) is between 10 mm and 20 mm.
5. The battery cell extrusion auxiliary tooling according to claim 1, characterized in that: The bolt holes of the first vertical plate (1) and the second vertical plate (5) are designed as countersunk through holes, with an outer diameter of 10-12 mm and an inner diameter of 6-8 mm.
6. The battery cell extrusion auxiliary tooling according to claim 1, characterized in that: The top wall of the second transverse plate (7) is provided with a first arc (71), the left wall of the second transverse plate (7) is provided with a second arc (72), the radius of the arc is greater than 75 mm, and the concave depth of the arc is determined according to the size of the test cell (9) and reaches more than 15% of the size of the test cell (9).
7. The battery cell extrusion auxiliary tooling according to claim 1 or 6, characterized in that: The first transverse plate (4) and the second transverse plate (7) are arranged in a mirror image.
8. The battery cell extrusion auxiliary tooling according to claim 1, characterized in that: The first transverse plate (4) and the second transverse plate (7) are designed in the shape of waist-shaped through holes, with the short side of the hole being 6-8 mm and the long side being 12-14 mm.
9. The battery cell extrusion auxiliary tooling according to claim 1, characterized in that: The holes on the first long plate (2), the first plate (3), the second long plate (8) and the second plate (6) are closed threaded holes with a depth of 10-20 mm and a hole diameter of 6-8 mm.
10. The battery cell extrusion auxiliary tooling according to claim 1, characterized in that: A plurality of square holes (61) are provided in the middle of the second flat plate (6) along the Y axis.