A test fixture for detecting pole thrust experiment of lithium battery top cover

Abstract

The utility model belongs to lithium battery top cover pole thrust test experiment field provides a kind of test fixture for detecting lithium battery top cover pole thrust experiment, including upper template, lower template;First sliding slot is equipped on the inner side wall of lower template, and support seat is equipped on the inner side of lower template, and support seat and first sliding slot slide fit;Upper template and lower template are connected by bolt, and adjusting block is equipped on the inner side wall of upper template, and adjusting block and support seat are used for clamping positioning top cover.The test fixture, the top cover is placed on support seat, then the upper template is covered, and the upper and lower templates are tightened by bolt and placed on experimental machine platform to carry out experiment. Among them, the position of support seat can be adjusted by sliding, which can be suitable for different specifications of top cover structure. The jig has simple structure, can be suitable for multiple specifications of top cover pole thrust test experiment, and is quick and convenient to disassemble, debug and assemble. The test different specifications of top cover pole thrust experiment bottleneck is solved, and the test efficiency and reliability are improved.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery top cover pole thrust test experiment, specifically relating to a test fixture for testing the pole thrust of lithium battery top cover. Background Technology

[0002] With the rapid development of new energy vehicles, energy storage systems, and consumer electronics, lithium batteries have been widely used due to their high energy density and long cycle life. Currently, in the lithium battery manufacturing process, the testing of the top cover is particularly important because its complex structure and performance affect the safety of the battery.

[0003] Traditional pole thrust testing experiments lack fixed fixtures. For different specifications of top cover structures, different pads need to be selected to support the test machine platform before testing can be carried out, resulting in low experimental efficiency and high cost. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a test fixture for testing the thrust of the terminal block of a lithium battery top cover, which can solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a test fixture for testing the pole thrust of a lithium battery top cover, comprising an upper template and a lower template; The lower template is a ring structure, and a first sliding groove is provided on the inner side wall of the lower template. A support seat is provided on the inner side of the lower template, and the support seat slides in conjunction with the first sliding groove. The support seat is a ring structure. The upper template is a ring structure, and the upper template is connected to the lower template by bolts. An adjustment block is provided on the inner side wall of the upper template, and the adjustment block and the support base are used to clamp and position the top cover.

[0006] Preferably, the lower template is provided with a first scale, and the support base is provided with a first position indicator arrow.

[0007] Preferably, a first adjusting screw hole is provided through the inner sidewall of the lower template, and a first adjusting screw is screwed into the first adjusting screw hole, and the first adjusting screw is rotatably connected to the support base.

[0008] Preferably, the inner side of the support base is provided with a support block, and the inner sidewall of the support base is provided with a second sliding groove. The support block is slidably engaged with the second sliding groove, and the top of the support block is flush with the top of the support base.

[0009] Preferably, the support base is provided with a second scale, and the support block is provided with a second position indicator arrow.

[0010] Preferably, a second adjusting screw hole is provided through the inner side wall of the support base, and a second adjusting screw is screwed into the second adjusting screw hole, and the second adjusting screw is rotatably connected to the support block.

[0011] Preferably, the inner sidewall of the upper template is provided with a third sliding groove, and the adjusting block slides in conjunction with the third sliding groove.

[0012] Preferably, the upper template is provided with a third scale, and the adjustment block is provided with a third position indicator arrow.

[0013] Preferably, a third adjusting screw hole is provided through the inner sidewall of the upper template, and a third adjusting screw is screwed into the third adjusting screw hole, and the third adjusting screw is rotatably connected to the adjusting block.

[0014] Preferably, the inner sidewall of the upper template is provided with a baffle, which is located above the adjustment block.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a test fixture for testing the terminal thrust of a lithium battery top cover. The top cover is placed on a support base, then the upper template is placed on top, and the upper and lower templates are tightened with bolts before being placed on the testing machine platform for the experiment. The position of the support base can be adjusted by sliding to accommodate top cover structures of different specifications.

[0016] This fixture has a simple structure and can be used for thrust testing experiments of top cover poles of various specifications. It is quick and convenient to disassemble, assemble, and debug, which solves the bottleneck of thrust testing experiments of top cover poles of different specifications and improves the efficiency and reliability of testing experiments. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of a test fixture for testing the terminal thrust of a lithium battery top cover, provided for an embodiment of this utility model; Figure 2 A three-dimensional structural diagram of the lower template and related parts of a test fixture for testing the terminal thrust of a lithium battery top cover, provided for an embodiment of this utility model. Figure 3 A three-dimensional structural diagram of a support base and related parts of a test fixture for testing the terminal thrust of a lithium battery top cover, provided for an embodiment of this utility model. Figure 4 A three-dimensional structural diagram of the second slide groove and related parts of a test fixture for testing the terminal thrust of a lithium battery top cover, provided for an embodiment of this utility model; Figure 5A three-dimensional structural diagram of the upper template and related parts of a test fixture for testing the terminal thrust of a lithium battery top cover, provided for an embodiment of this utility model. Figure 6 A three-dimensional structural diagram of the baffle and related parts of a test fixture for testing the terminal thrust of a lithium battery top cover, provided for an embodiment of this utility model. Figure 7 A top view of a test fixture for testing the thrust of a lithium battery top cover, provided in an embodiment of this utility model. Figure 8 This is a three-dimensional structural diagram of the first groove and related parts of a test fixture for testing the thrust of the terminal block of a lithium battery top cover, provided as an embodiment of the present invention.

[0018] The attached diagram lists the components represented by each number as follows: 1. Upper template; 101. Adjusting block; 102. Third slide rail; 103. Third scale; 104. Third position indicator arrow; 105. Third adjusting screw; 106. Baffle; 107. Limit block; 2. Lower template; 201. First slide rail; 202. Support base; 203. First scale; 204. First position indicator arrow; 205. First adjusting screw; 206. Support block; 207. Second slide rail; 208. Second adjusting screw; 209. Second scale; 210. Second position indicator arrow; 3. Top cover; 4. Bolts. Detailed Implementation

[0019] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0020] This embodiment provides a test fixture for testing the thrust of the terminal block of a lithium battery top cover, including an upper template 1 and a lower template 2.

[0021] The lower template 2 is a ring structure. A first sliding groove 201 is provided on the inner side wall of the lower template 2. A support seat 202 is provided on the inner side of the lower template 2. The support seat 202 is slidably engaged with the first sliding groove 201. The support seat 202 is a ring structure. For example, see Figure 2The lower template 2 is a ring-shaped plate structure. First sliding grooves 201 are formed on both inner sidewalls extending in the left-right direction of the lower template 2, and these first sliding grooves 201 are arranged in the left-right direction. There are two support seats 202 on the inner side of the lower template 2. The front and rear ends of the support seats 202 are respectively slidably engaged with the two first sliding grooves 201, meaning the support seats 202 can slide along the first sliding grooves 201. The top of the support seats 202 is higher than the top of the lower template 2, so the top cover 3 can rest on both support seats 202 simultaneously.

[0022] The upper template 1 is a ring structure. The upper template 1 and the lower template 2 are connected by bolts 4. An adjustment block 101 is provided on the inner side wall of the upper template 1. The adjustment block 101 and the support seat 202 are used to clamp and position the top cover 3. For example, see Figure 1 , Figure 5 The upper template 1 is a ring-shaped plate structure. Two adjusting blocks 101 are provided on the inner wall of the upper template 1, spaced apart along the front-to-back direction. The upper template 1 is aligned with the lower template 2, and then four bolts 4 (which can be wing bolts) are used to lock and fix the upper template 1 and lower template 2 in place. After locking and fixing, the two support seats 202 provide bottom support for the top cover 3, and the two adjusting blocks 101 press against the front and rear ends of the top cover 3 respectively, thereby clamping and fixing the top cover 3.

[0023] Based on the above structure, the test fixture provided in this embodiment places the top cover 3 on the support base 202, then covers it with the upper template 1, and tightens the upper and lower templates with bolts 4 before placing it on the testing machine platform. Next, the cylinder is placed directly above the pole column. The thrust test conditions are set, and the thrust test is started by clicking the start icon on the thrust test software interface. After completing one test, the thrust data is recorded, and then the next thrust test is performed. The position of the support base 202 can be adjusted by sliding to accommodate top cover structures of different specifications.

[0024] This fixture has a simple structure and can be used for thrust testing experiments of top cover poles of various specifications. It is quick and convenient to disassemble, assemble, and debug, which solves the bottleneck of thrust testing experiments of top cover poles of different specifications and improves the efficiency and reliability of testing experiments.

[0025] Based on the above technical solution, in the technical solution provided in this embodiment, the lower template 2 is provided with a first scale 203, and the support base 202 is provided with a first position indicator arrow 204; For example, see Figure 3 The upper surface of the lower template 2 is provided with a first scale 203 extending in the left and right direction, and the side wall of the support 202 is provided with a first position indicator arrow 204. The first position indicator arrow 204 is adapted to the first scale 203, so that the distance and position of the support 202 moving left and right, as well as the interval distance between the two support 202s, can be quickly and accurately determined.

[0026] In the technical solution provided in this embodiment, a first adjusting screw hole is provided through the inner sidewall of the lower template 2, and a first adjusting screw 205 is screwed into the first adjusting screw hole. The first adjusting screw 205 is rotatably connected to the support base 202. For example, see Figure 3 Each of the two inner sidewalls extending in the front-rear direction of the lower template 2 is provided with a first adjusting screw hole, which is arranged in the left-right direction. A first adjusting screw 205 is screwed into the first adjusting screw hole, and the inner end of the first adjusting screw 205 is rotatably connected to the support seat 202 on the same side. The outer end of the first adjusting screw 205 extends to the outside of the lower template 2. In this way, by rotating the first adjusting screw 205, the first adjusting screw 205 can be moved left and right, thereby driving the support seat 202 to move left and right. Secondly, a guide hole can also be provided through the inner sidewalls extending in the front-rear direction of the lower template 2. The guide hole is parallel to the first adjusting screw hole, and a guide rod is slidably sleeved in the guide hole. The guide rod is fixedly connected to the support seat 202, which can improve the stability of the support seat 202 when moving left and right.

[0027] In the technical solution provided in this embodiment, a support block 206 is provided on the inner side of the support base 202, and a second sliding groove 207 is provided on the inner side wall of the support base 202. The support block 206 slides in conjunction with the second sliding groove 207, and the top of the support block 206 is flush with the top of the support base 202. For example, see Figure 3 A support block 206 is provided on the inner side of the support base 202, with its top end flush with the top end of the support base 202. This allows the support block 206 to provide support when the top cover 3 rests on the support base 202, increasing the support area of ​​the top cover 3 and thus improving its stability. Two second sliding grooves 207 are provided on the two inner sidewalls extending in the front-rear direction of the support base 202, and these grooves are arranged along the front-rear direction. The left and right ends of the support block 206 slide in contact with the two second sliding grooves 207, allowing the support block 206 to slide back and forth within the support base 202, thereby adjusting its position to accommodate different top cover structures. See also... Figure 4 The bottom of the support base 202 may be provided with an installation inlet, which is connected to the second slide 207. The installation inlet facilitates the disassembly and assembly of the support block 206.

[0028] Among them, the support base 202 is provided with a second scale 209, and the support block 206 is provided with a second position indicator arrow 210; For example, see Figure 3 The upper surface of the support base 202 is provided with a second scale 209 extending in the front-back direction, and the upper surface of the support block 206 is provided with a second position indicator arrow 210. The second position indicator arrow 210 is adapted to the second scale 209, so that the distance and position of the support block 206 moving back and forth can be quickly and accurately determined.

[0029] A second adjusting screw hole is provided through the inner side wall of the support base 202, and a second adjusting screw 208 is screwed into the second adjusting screw hole. The second adjusting screw 208 is rotatably connected to the support block 206. For example, see Figure 3 A second adjusting screw hole is provided through the rear side wall of the support base 202. The second adjusting screw hole is arranged in the front-to-back direction, and a second adjusting screw 208 is screwed into the second adjusting screw hole. The inner end of the second adjusting screw 208 is rotatably connected to the support block 206, and the outer end of the second adjusting screw 208 extends to the outside of the support base 202. In this way, by rotating the second adjusting screw 208, the second adjusting screw 208 can be moved back and forth, thereby driving the support block 206 to move back and forth. Similarly, the rear side wall of the support base 202 may also be provided with guide holes, which will not be described in detail here.

[0030] In the technical solution provided in this embodiment, a third sliding groove 102 is provided on the inner sidewall of the upper template 1, and the adjusting block 101 slides in conjunction with the third sliding groove 102. For example, see Figure 5 The upper template 1 has two inner sidewalls extending in the front and rear directions, each with a third sliding groove 102. The third sliding groove 102 is arranged in the front and rear direction. The left and right ends of the adjustment block 101 are respectively slidably engaged with the two third sliding grooves 102, so that the adjustment block 101 can slide back and forth in the upper template 1, thereby adjusting the position of the adjustment block 101 and adapting to different specifications of top cover structures.

[0031] The upper template 1 is provided with a third scale 103, and the adjustment block 101 is provided with a third position indicator arrow 104; For example, see Figure 7 The upper surface of the upper template 1 is provided with a third scale 103 extending in the front-back direction, and the upper surface of the adjustment block 101 is provided with a third position indicator arrow 104. The third position indicator arrow 104 is adapted to the third scale 103, so that the distance and position of the adjustment block 101 moving back and forth can be quickly and accurately determined.

[0032] A third adjusting screw hole is provided through the inner side wall of the upper template 1. A third adjusting screw 105 is screwed into the third adjusting screw hole. The third adjusting screw 105 is rotatably connected to the adjusting block 101. For example, see Figure 5The upper template 1 has two inner sidewalls extending in the left-right direction each equipped with a third adjusting screw hole. These holes are arranged in the front-back direction, and a third adjusting screw 105 is screwed into each hole. The inner end of the third adjusting screw 105 is rotatably connected to the adjusting block 101 on the same side, and the outer end of the third adjusting screw 105 extends to the outside of the upper template 1. By rotating the third adjusting screw 105, it can move back and forth, thereby moving the adjusting block 101 back and forth. Similarly, the inner sidewalls of the upper template 1 can also be provided with guide holes, which will not be described in detail here.

[0033] The inner side wall of the upper template 1 is provided with a baffle 106, which is located above the adjusting block 101; For example, see Figure 6 Two baffles 106 are fixed on the inner wall of the upper template 1. The two baffles 106 are located above the two adjusting blocks 101 respectively. The baffles 106 can play a pressing role to enhance the stability of the adjusting blocks 101. Of course, the baffles 106 should avoid obstructing the third position indicator arrow 104. See Figure 7 .

[0034] In the technical solution provided in this embodiment, see [link to relevant documentation]. Figure 5 The bottom of the upper template 1 is provided with an installation groove, which is connected to the third slide groove 102. A limit block 107 is installed in the installation groove by bolts. The installation groove is designed to facilitate the removal of the adjustment block 101.

[0035] In the technical solution provided in this embodiment, see [link to relevant documentation]. Figure 8 The lower template 2 includes a C-shaped base and a connecting plate. The open end of the C-shaped base is fixed to the connecting plate by bolts, forming a ring structure together. After the connecting plate is disassembled, the support base 202 can be easily removed.

[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and 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 of this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0039] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A test fixture for testing the thrust of the terminal blocks of a lithium battery top cover, characterized in that, Includes upper template (1) and lower template (2); The lower template (2) is a ring structure. A first groove (201) is provided on the inner side wall of the lower template (2). A support seat (202) is provided on the inner side of the lower template (2). The support seat (202) slides with the first groove (201). The support seat (202) is a ring structure. The upper template (1) is a ring structure. The upper template (1) and the lower template (2) are connected by bolts (4). An adjustment block (101) is provided on the inner side wall of the upper template (1). The adjustment block (101) and the support seat (202) are used to clamp and position the top cover (3).

2. The test fixture for testing the terminal thrust of a lithium battery top cover according to claim 1, characterized in that, The lower template (2) is provided with a first scale (203), and the support base (202) is provided with a first position indicator arrow (204).

3. The test fixture for testing the terminal thrust of a lithium battery top cover according to claim 1, characterized in that, The lower template (2) has a first adjusting screw hole through the inner side wall, and a first adjusting screw (205) is screwed into the first adjusting screw hole. The first adjusting screw (205) is rotatably connected to the support base (202).

4. The test fixture for testing the terminal thrust of a lithium battery top cover according to claim 1, characterized in that, The support base (202) has a support block (206) on its inner side and a second sliding groove (207) on its inner sidewall. The support block (206) slides in conjunction with the second sliding groove (207) and the top of the support block (206) is flush with the top of the support base (202).

5. A test fixture for testing the terminal thrust of a lithium battery top cover according to claim 4, characterized in that, The support base (202) is provided with a second scale (209), and the support block (206) is provided with a second position indicator arrow (210).

6. A test fixture for testing the terminal thrust of a lithium battery top cover according to claim 4, characterized in that, The inner wall of the support base (202) is provided with a second adjusting screw hole, and a second adjusting screw (208) is screwed into the second adjusting screw hole. The second adjusting screw (208) is rotatably connected to the support block (206).

7. The test fixture for testing the terminal thrust of a lithium battery top cover according to claim 1, characterized in that, The upper template (1) has a third sliding groove (102) on its inner sidewall, and the adjusting block (101) slides in cooperation with the third sliding groove (102).

8. A test fixture for testing the terminal thrust of a lithium battery top cover according to claim 7, characterized in that, The upper template (1) is provided with a third scale (103), and the adjustment block (101) is provided with a third position indicator arrow (104).

9. A test fixture for testing the terminal thrust of a lithium battery top cover according to claim 7, characterized in that, The upper template (1) has a third adjusting screw hole through the inner side wall, and a third adjusting screw (105) is screwed into the third adjusting screw hole. The third adjusting screw (105) is rotatably connected to the adjusting block (101).

10. A test fixture for testing the terminal thrust of a lithium battery top cover according to claim 7, characterized in that, The inner wall of the upper template (1) is provided with a baffle (106), which is located above the adjustment block (101).

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