Simulation cell jig
By designing a simulated battery cell fixture, the problem of high cost and loss in battery cell testing was solved, achieving cost reduction and accuracy of test results. The fixture body and clamping blocks are used to simulate the actual battery cell structure for electrode welding and testing.
Patent Information
- Application Number
- CN202423260327.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-27
AI Technical Summary
During the battery cell production process, metallographic testing consumes a large number of battery cells, resulting in high costs and losses, which cannot be effectively solved by existing technologies.
Design a simulated battery cell fixture, including a fixture body and a clamping block. The clamping block is assembled with the fixture body to form a fixed channel, simulating the structure of a real battery cell, for fixing and welding the tabs, and replacing the real battery cell for testing.
This reduces the cost of battery cell losses, avoids the scrapping of real battery cells through simulated testing, and ensures the accuracy and reliability of test results.
Smart Images
Figure CN223670545U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery technology field especially relates to a simulation electric core tool. BACKGROUND
[0002] During the production process of the electric core, the tab needs to be welded on the electric core body, and then the cover plate is welded on the tab. In order to check the performance of the equipment and control the quality of the product in the production process, after the tab is welded on the electric core body, the laser welding machine equipment needs to be sampled and checked regularly and regularly, and the frequency of the electric core used for metallographic detection is once every 4 hours for melting depth and melting width, and once every 12 hours for tension.
[0003] The object of metallographic detection is the welding area of the cover plate pin and the tab. Since each metallographic detection needs to cover all stations, a large number of electric cores are consumed in daily detection. After the detection is completed, the electric core cannot be used continuously, and can only be scrapped, resulting in high cost loss. UTILITY MODEL CONTENTS
[0004] The utility model provides a simulation electric core tool, which replaces the electric core body, thereby reducing the cost loss.
[0005] The utility model provides a simulation electric core tool, which includes a tool body and two clamping blocks.
[0006] One of the large faces of the tool body is provided with two grooves, the two grooves are respectively arranged close to the two end parts of the tool body for welding the tab, the two clamping blocks are respectively detachably arranged in the two grooves, when the clamping block is located in the groove, the end face of the clamping block is flush with the end face of the tool body, so that the shape of the clamping block and the tool body as a whole is square.
[0007] The clamping block and the inner wall of the groove have a fixed channel for passing through the tab, one end of the fixed channel extends to the end part of the tool body, a part of the tab can be exposed from the fixed channel through one end of the fixed channel, and the part of the tab exposed from the fixed channel can be bent relative to the tool body to be welded with the end surface of the tool body or the side surface of the clamping block facing the end part of the tool body.
[0008] The side of the clamping block facing the inner wall of the groove is provided with a first protruding part, the first protruding part is used for cooperating with the wall surface of the groove to clamp the tab between the clamping block and the tool body.
[0009] The utility model provides an analog electric core fixture sets up fixture main part and clamping block, when clamping block and fixture main part assemble, overall structure is square, can simulate real electric core main part. Form fixed passageway between clamping block and fixture main part, and fixed passageway can be used for fixing tab, and the part of tab that passes out fixed passageway can be bent relative to fixture main part, to make tab and fixture main part or the end face of tab weld, thereby can simulate real electric core. When carrying out metallographic detection, utilize above -mentioned analog electric core fixture and carry out detection, can avoid using real electric core, like this can only scrap tab and cover plate, need not scrap electric core, thereby good reduction cost loss. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is a whole structure schematic view of analog electric core fixture in the utility model embodiment;
[0011] Figure 2 It is Figure 1 It is a sectional structure schematic view of fixture main part end in the utility model embodiment;
[0012] Figure 3 It is Figure 1 It is a sectional structure schematic view of analog electric core fixture end in the utility model embodiment;
[0013] Figure 4 It is another whole structure schematic view of analog electric core fixture in the utility model embodiment;
[0014] Figure 5 It is Figure 4 It is a sectional structure schematic view of fixture main part end in the utility model embodiment;
[0015] Figure 6 It is Figure 4 It is a sectional structure schematic view of analog electric core fixture end in the utility model embodiment;
[0016] Figure 7 It is another whole structure schematic view of analog electric core fixture in the utility model embodiment;
[0017] Figure 8 It is a sectional structure schematic view of analog electric core fixture end in the utility model embodiment;
[0018] Figure 9 It is Figure 8 It is an enlarged structure schematic view of guide section in the utility model embodiment;
[0019] Figure 10 It is another sectional structure schematic view of fixture main part end in the utility model embodiment;
[0020] Figure 11 It is another sectional structure schematic view of analog electric core fixture end in the utility model embodiment.
[0021] Fig.:
[0022] 100 - jig body; 101 - large face; 102 - end of jig body; 103 - first inclined face; 110 - recess; 111 - first groove; 112 - second groove; 120 - mounting groove; 200 - clamping block; 201 - first protruding portion; 202 - second inclined face; 210 - first connecting block; 220 - second connecting block; 300 - fixing channel; 310 - guide section; 400 - tab; 500 - second protruding portion; 600 - gasket. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0024] Reference Figures 1 to 3 The simulated battery cell jig in the embodiments of the present application can include a jig body 100 and two clamping blocks 200, wherein the jig body 100 is provided with two recesses 111, and the two clamping blocks 200 can be fixed in the two recesses 111 respectively. At this time, the end face of the clamping block 200 can be flush with the end face of the jig body 100, so that the jig body 100 and the clamping block 200 as a whole have a square structure, thereby simulating the structure of a real battery cell body.
[0025] As shown in Figure 2 , since the jig body 100 in the present embodiment is a simulated battery cell body, the jig body 100 can include two opposite large faces 101, two end faces arranged in the length direction (not shown in the figure) and two end faces arranged in the width direction (not shown in the figure). The two recesses 111 can be arranged on one of the large faces 101 of the jig body 100, that is, the opening of the recess 111 is arranged on the large face 101 of the jig body 100, and the clamping block 200 can be put into the recess 111 from the arrangement direction of the two large faces 101.
[0026] As shown in Figure 3 , a fixing channel 300 is arranged between each clamping block 200 and the inner wall of the recess 111, which can be used to pass through the tab 400. It can be understood that when the clamping block 200 is put into the recess 111, the surface of the clamping block 200 facing the inner wall of the recess 111 is not in contact with the inner wall of the recess 111, and there is a certain gap between them to form the fixing channel 300.
[0027] Since the jig body 100 is a simulated battery cell body, it needs to be welded with the tab 400, therefore, two grooves 111 are respectively arranged close to the end 102 of the jig body 100 for welding two ends of the tab 400, so as to form two fixing channels 300, which can be respectively used for passing through the copper foil and the aluminum foil to form the positive and negative tabs. A part of the tab 400 in each fixing channel 300 can be exposed to the fixing channel 300, so that the tab 400 can be bent towards the end 102 of the jig body 100 to complete the welding between the jig body 100 and the tab 400.
[0028] For the convenience of understanding, in the following embodiments, if not specified, the end 102 of the jig body 100 can be understood as the end 102 of the jig body 100 for welding the tab 400. In addition, in the following embodiments, the structure of the groove 111 and the clamping block 200 on one side is described as an example, and in actual application, the grooves 111 and the clamping blocks 200 on both ends can be respectively arranged symmetrically.
[0029] Continuing to refer to Figure 3 The clamping block 200 further comprises a first protruding portion 201 on the side facing the inner wall of the groove 111, the first protruding portion 201 is located in the fixing channel 300, and the gap between the first protruding portion 201 and the inner wall of the groove 111 is smaller than the gap between the clamping block 200 and the inner wall of the groove 111. When the tab 400 is arranged in the fixing channel 300, since the gap between the first protruding portion 201 and the inner wall of the groove 111 is small, the first protruding portion 201 can cooperate with the inside of the groove 111, so as to clamp the tab 400 in the fixing channel 300, so that the tab 400 is relatively fixed with the fixing channel 300. In this way, when the part of the tab 400 exposed to the fixing channel 300 is bent and welded, the tab 400 can be prevented from moving relative to the fixing channel 300, so as to better simulate the structure of the battery cell.
[0030] In specific implementation, the first protruding portion 201 can be arranged close to one end of the fixing channel 300, that is, the first protruding portion 201 can be located at the end of the clamping block 200 away from the end 102 of the jig body 100. When the tab 400 is fixed in the fixing channel 300 by the first protruding portion 201, the first protruding portion 201 can press the end of the tab 400. Compared with the scheme that the first protruding portion 201 presses the middle part of the tab 400, not only can the tab 400 be fixed, but also the tearing of the tab 400 can be avoided.
[0031] In some alternative embodiments, the first protrusion can also be arranged on the inner wall of the groove 111, and the first protrusion can cooperate with the clamping block 200 to clamp and fix the tab 400. Similarly, when the first protrusion is arranged on the inner wall of the groove 111, the first protrusion can be located at the bottom of the groove 111 close to the side wall, so that the first protrusion can be pressed against the end of the tab 400.
[0032] In some embodiments, referring back to Figure 2 , the groove 111 can include a first groove body 111 and a second groove body 112 arranged along the length direction of the jig body 100, and the depth of the first groove body 111 is different from the depth of the second groove body 112, so that a stepped structure can be formed at the connection between the first groove body 111 and the second groove body 112. In addition, the second groove body 112 can also extend along the length direction of the jig body 100 to the end 102 of the jig body 100, and at this time, the side of the second groove body 112 close to the end 102 of the jig body 100 has no side wall. It can be understood that the end 102 of the jig body 100 is recessed inward by a distance, thereby forming the second groove body 112.
[0033] Correspondingly, the clamping block 200 can be an L-shaped structure, and the clamping block 200 can include a first connecting block 210 and a second connecting block 220, the first connecting block 210 is perpendicular to the second connecting block 220, and the first connecting block 210 and the second connecting block 220 are arranged along the length direction of the jig body 100. In the depth direction of the groove 111, the height of the first connecting block 210 and the second connecting block 220 is different. When the clamping block 200 is fixed in the groove 111, the first connecting block 210 can be located in the first groove body 111, and the second connecting block 220 can be located in the second groove body 112.
[0034] In the present embodiment, as shown in Figure 2 and Figure 3 , the depth of the first groove body 111 is greater than the depth of the second groove body 112, and correspondingly, the height of the first connecting block 210 is greater than the height of the second connecting block 220. Since the fixing channel 300 is formed between the clamping block 200 and the inner wall of the groove 111, the fixing channel 300 formed in the present embodiment can include three sub-channels, which are a first sub-channel located between the first connecting block 210 and the bottom wall of the first groove body 111, a second sub-channel located between the first connecting block 210 and the side wall of the first groove body 111, and a third sub-channel located between the second connecting block 220 and the bottom wall of the second groove body 112.
[0035] Furthermore, the second sub-channel is perpendicular to the first sub-channel, and the second sub-channel is perpendicular to the third sub-channel. Therefore, it can be understood that the fixed channel 300 consists of two L-shaped channels. When the electrode tab 400 is inserted into the fixed channel 300, the electrode tab 400 needs to bend once during its extension from the first sub-channel to the second sub-channel, and again during its extension from the second sub-channel to the third sub-channel. In other words, the electrode tab 400 needs to bend twice within the fixed channel 300. Based on this, when the electrode tab 400 located outside the fixed channel 300 is pulled to bend it, the electrode tab 400 is restrained at the connection between the first groove 111 and the second groove 112. The electrode tab 400 within the fixed channel 300 is not easily pulled outwards, thus further enhancing the fixing effect between the electrode tab 400 and the fixed channel 300.
[0036] Furthermore, such as Figure 3 As shown, the end 102 of the fixture body 100 may also be provided with a second protrusion 500, which protrudes from the end face of the fixture body 100 along the length direction of the fixture body 100. The second protrusion 500 is connected to the end of the fixing channel 300; in other words, the second protrusion 500 is connected to the bottom wall of the second groove 112 on the side opposite to the first groove 111. When the portion of the electrode tab 400 exposed in the fixing channel 300 is bent, the portion of the second protrusion 500 opposite to the fixed channel 300 bends relative to the fixture body 100 toward the second protrusion 500.
[0037] It is worth noting that when the second protrusion 500 is not provided, the portion of the tab 400 exposed in the fixed channel 300 bends towards the end 102 of the fixture body 100, with the bent portion of the tab 400 located at the end of the fixed channel 300. At this time, because the fixed channel 300 has a certain width, when the tab 400 bends, it tends to bend towards the center of the fixed channel 300 along the arrangement direction of the two large surfaces 101 of the fixture body 100. This results in a misalignment of the welding area compared to a normal battery cell when the tab 400 is subsequently laser-welded to the fixture body 100. When the second protrusion 500 is provided, the portion of the tab 400 exposed in the fixed channel 300 bends toward the end 102 of the fixture body 100. The bent portion of the tab 400 extends to the end of the second protrusion 500 away from the second groove 112. This changes the relative position between the portion of the tab 400 exposed in the fixed channel 300 and the end 102 of the fixture body 100, thereby adjusting the welding position.
[0038] Since the analog cell jig in the embodiment can replace the normal cell body to perform detection, when the tab 400 is bent towards the end 102 of the jig body 100 and then laser welded with the jig body 100, the welding position between the tab 400 and the jig body 100 will also affect the detection result. When the second protruding part 500 is provided, the welding effect between the tab 400 and the cell body can be better simulated, so as to ensure that the laser welding between the tab 400 and the jig body 100 has the same penetration depth, width and tensile force as the welding between the tab 400 and the normal cell body, so as to ensure the accuracy of the metallographic detection result.
[0039] In some embodiments, with reference to Figures 4 to 6 , the groove 111 can include a first groove body 111 and a second groove body 112 arranged along the length direction of the jig body, the depth of the first groove body 111 is different from the depth of the second groove body 112, thereby forming a stepped structure at the connection between the first groove body 111 and the second groove body 112. Moreover, the second groove body 112 extends to the end 102 of the jig body 100 along the length direction of the jig body 100, that is, the end 102 of the jig body 100 is inwardly recessed, thereby forming the second groove body 112.
[0040] In the embodiment, the depth of the first groove body 111 is smaller than the depth of the second groove body 112. Correspondingly, the clamping block 200 has an L-shaped structure, and the clamping block 200 can include a first connecting block 210 and a second connecting block 220 arranged along the length direction of the jig body 100, in the depth direction of the groove 111, the height of the first connecting block 210 is smaller than the height of the second connecting block 220. When the clamping block 200 is fixed in the groove 111, the first connecting block 210 can be located in the first groove body 111, and the second connecting block 220 can be located in the second groove body 112, thereby making the jig body 100 and the clamping block 200 cooperate to form a complete square structure.
[0041] At this time, the fixing channel 300 formed between the clamping block 200 and the inner wall of the groove 111 can include three sub-channels, which are a first sub-channel between the first connecting block 210 and the bottom wall of the first groove body 111, a second sub-channel between the second connecting block 220 and the side wall of the second groove body 112, and a third sub-channel between the second connecting block 220 and the bottom wall of the second groove body 112. Among them, the second sub-channel is perpendicular to the first sub-channel, and the second sub-channel is also perpendicular to the third sub-channel, so that the fixing channel 300 is composed of two L-shaped channels.
[0042] When the tab 400 is arranged in the fixed channel 300, the tab 400 needs to be bent once in the process of extending from the first sub-channel to the second sub-channel, and needs to be bent once again in the process of extending from the second sub-channel to the third sub-channel. On this basis, when the tab 400 outside the fixed channel 300 is pulled to bend the tab 400, the tab 400 is constrained at the position where the first groove 111 and the second groove 112 are connected, and is not easy to be pulled to the outside of the fixed channel 300, thereby enhancing the fixing effect between the tab 400 and the fixed channel 300.
[0043] As shown in Figure 6 , the second connecting block 220 can also be provided with a second protruding portion 500 on the side away from the first connecting block 210. The second protruding portion 500 protrudes from the end face of the second connecting block 220 in the length direction of the jig main body 100, that is, the second protruding portion 500 protrudes from the end face of the jig main body 100. The second protruding portion 500 is connected to the end of the fixed channel 300. When the tab 400 is bent towards the second connecting block 220 at the position where the tab 400 is exposed from the fixed channel 300, the bent position of the tab 400 can extend to the end of the second protruding portion 500 away from the second connecting block 220, and bend towards the second protruding portion 500. In this way, the welding effect between the tab 400 and the battery main body can be better simulated, so as to ensure that the penetration depth, the width of fusion and the pulling force of the tab 400 after laser welding between the tab 400 and the jig main body 100 are the same as those of the tab 400 after welding with a normal battery main body, so as to ensure the accuracy of the metallographic detection result.
[0044] In some embodiments, referring to Figures 7 to 9 , the groove 111 of the jig main body 100 extends to the end 102 of the jig main body 100, so that the groove 111 also has an opening on the side towards the end 102 of the jig main body 100. At this time, the groove 111 can be regarded as having a bottom wall and a side wall. Alternatively, it can also be understood that the structure of the groove 111 can be regarded as cutting a part of the jig main body 100 inward along the length direction of the jig main body 100 from the end 102, thereby forming the groove 111. The clamping block 200 is arranged in the groove 111, and each end face of the clamping block 200 is flush with each end face of the jig main body 100, so that the jig main body 100 and the clamping block 200 as a whole can have a square structure, so as to simulate the battery main body.
[0045] As shown in Figure 8 and Figure 9 , the bottom of the groove 110 is provided with a first inclined surface 103 near the end 102 of the jig main body 100. In the direction of the side wall of the groove 111 towards the end 102 of the jig main body 100, the distance between the first inclined surface 103 and the plane where the large face 101 of the jig main body 100 is gradually increased. Figure 9For example, the large surface 101 of the jig body 100 where the groove 111 is located is located at the top of the jig body 100, and the first inclined surface 103 extends towards the obliquely downward direction.
[0046] Correspondingly, the clamping block 200 is provided with a second inclined surface 202 parallel to the first inclined surface 103 on the side of the clamping block 200 facing the bottom of the groove 111, and the first inclined surface 103 and the second inclined surface 202 are oppositely arranged to form a guide section 310 inclined to the surface of the end portion 102 of the jig body 100 between the first inclined surface 103 and the second inclined surface 202. The guide section 310 is part of the fixed channel 300 and is arranged close to the end portion of the fixed channel 300.
[0047] The end of the guide section 310 away from the side wall of the groove 111 is a certain distance from the bottom of the groove 111. When the tab 400 passes between the clamping block 200 and the bottom of the groove 111, the tab 400 needs to be bent into the guide section 300, and then the end of the guide section 310 protrudes out of the fixed channel 300. The part of the tab 400 exposed to the fixed channel 300 can be bent relative to the jig body 100 to facilitate the tab 400 to be welded with the jig body 100 or the clamping block 200. Since the tab 400 is not in a single extension direction in the fixed channel 300, when the tab 400 is pulled to be bent, the tab 400 is not easy to move relative to the fixed channel 300, thereby ensuring the relative position between the tab 400 and the jig body 100 is fixed.
[0048] In addition, as shown in the drawings, Figure 8 When the tab 400 is bent at the end portion 102 of the jig body 100, the tab 400 is bent towards the large surface 101 of the jig body 100 where the groove 111 is located. At this time, compared with the case where the guide section 310 is not arranged, the part of the tab 400 bent at the end portion 102 of the jig body 100 is offset further away from the large surface 101 of the jig body 100 where the groove 111 is located. Therefore, when the tab 400 is bent to be parallel to the surface of the end portion 102 of the jig body 100 or the surface of the clamping block 200 facing the end portion 102 of the jig body 100, the relative position between the tab 400 and the end portion 102 of the jig body 100 is closer to the actual structure of the battery cell. In this way, when the tab 400 is welded with the surface of the end portion 102 of the jig body 100 or the surface of the clamping block 200 facing the end portion 102 of the jig body 100, the welding position is closer to the actual welding position between the tab 400 and the battery cell body, and the penetration depth, the fusion width and the pulling force of the tab 400 after laser welding between the tab 400 and the jig body 100 are the same as those of the tab 400 after welding with the normal battery cell body, so as to ensure the accuracy of the metallographic detection result.
[0049] Further, referring to the drawings, Figure 10 andFigure 11 The end portion 102 of the jig body 100 is provided with a mounting groove 120 extending along the length direction of the jig body 100, and the mounting groove 120 is in communication with the groove 111, and at this time, the mounting groove 120 and the groove 111 integrally form a stepped structure. A gasket 600 is arranged in the mounting groove 120, and the side end face of the gasket 600 towards the end portion 102 of the jig body 100 is flush with the end face of the jig body 100.
[0050] As shown in Figure 11 , the gasket 600 is close to the part of the clamping block 200 near the end portion 102 of the jig body 100, so that the gasket 600 and the clamping block 200 integrally form an L-shaped structure to fill the groove 111 and the mounting groove 120. There is a gap between the gasket 600 and the clamping block 200, which forms part of the fixing channel 300. At this time, the first inclined surface can be formed on the side of the gasket 600 towards the clamping block 200, that is, the guide section 310 of the fixing channel 300 is formed between the gasket 600 and the clamping block 200, so that the tab 400 can adjust the relative position between the guide section 310 and the end portion 102 of the jig body 100.
[0051] The gasket 600 in the embodiment can be detachably mounted in the mounting groove 120, so that different specifications of gaskets 600 can be mounted in the mounting groove 120, thereby adjusting the gap size between the gasket 600 and the clamping block 200, and also adjusting the width of the guide section 310. When simulating different specifications of battery cells by using the simulated battery cell jig in the embodiment, because the thickness of the tab 400 is different, at this time, different specifications of gaskets 600 can be replaced, thereby adjusting the width of the fixing channel 300 to meet the fixing of tabs 400 with different thicknesses.
[0052] To facilitate the fixing and dismounting between the gasket 600 and the mounting groove 120, the gasket 600 and the mounting groove 120 can be connected by screws, for example.
[0053] In addition, the clamping block 200 and the jig body 100 can be detachably connected, so that the tab 400 and the jig body 100 can be fixed. Before detection by using the simulated battery cell jig, the clamping block 200 can be separated from the groove 111, at this time, the tab 400 can be placed in the groove 111, and part of the tab 400 is located outside the groove 111. Then, the clamping block 200 is fixed with the groove 111, and the tab 400 is clamped between the clamping block 200 and the inner wall of the groove 111 by the first protruding portion 201, thereby completing the fixing of the tab 400 and the jig body 100.
[0054] To facilitate the dismounting and fixing between the clamping block 200 and the groove 111, the clamping block 200 and the groove 111 can be connected by screws, for example.
[0055] In some embodiments, the material of the jig body 100 can be aluminum, so as to facilitate cost control, thereby achieving the effect of reducing cost loss.
[0056] Obviously, various modifications and changes can be made to the embodiments of the present application without departing from the spirit and scope of the present application. Thus, it is intended that the present application cover the modifications and changes as they come within the scope of the claims and their equivalents.
Claims
1. A simulation cell fixture, characterized by, The jig body and two clamping blocks; One of the large faces of the jig body is provided with two grooves, which are respectively arranged near the two ends of the jig body for welding tab, and the two clamping blocks are respectively arranged in the two grooves in a detachable manner, when the clamping blocks are arranged in the grooves, the end faces of the clamping blocks are flush with the end faces of the jig body, so that the overall shape of the jig body and the clamping blocks is square; The clamping block and the inner wall of the groove have a fixed channel for passing through the tab, one end of the fixed channel extends to the end of the jig body, and a part of the tab can be exposed from the fixed channel through one end of the fixed channel, and the part of the tab exposed from the fixed channel can be bent relative to the jig body to be welded with the end surface of the jig body or the side surface of the clamping block facing the end of the jig body; The side of the clamping block facing the inner wall of the groove is provided with a first protruding part, which is used to cooperate with the wall surface of the groove to clamp the tab between the clamping block and the jig body.
2. The analog cell fixture of claim 1, wherein, The first protruding part is arranged at one end of the clamping block away from the end of the jig body for welding tab.
3. The analog cell fixture of claim 1, wherein, The groove includes a first groove body and a second groove body arranged along the length direction of the jig body, and the depths of the first groove body and the second groove body are different, so that the connection part of the first groove body and the second groove body forms a stepped structure; The clamping block is in L-shaped structure, and the clamping block includes a first connecting block and a second connecting block, the first connecting block is arranged in the first groove body, and the second connecting block is arranged in the second groove body.
4. The analog cell fixture of claim 3, wherein, The second groove body extends to the end of the jig body along the length direction of the jig body, and the depth of the first groove body is greater than the depth of the second groove body.
5. The analog cell fixture of claim 4, wherein, The end of the jig body provided with the second groove body is provided with a second protruding part, the second protruding part is connected to the end of the fixed channel, and the tab is bent relative to the jig body towards the second protruding part at the part of the second protruding part away from the end of the fixed channel.
6. The analog cell fixture of claim 3, wherein, The second groove body extends to the end of the jig body along the length direction of the jig body, and the depth of the first groove body is less than the depth of the second groove body.
7. The analog cell fixture of claim 6, wherein, The side of the second connecting block away from the first connecting block is provided with a second protruding part, the second protruding part is connected to the end of the fixed channel, and the tab is bent relative to the jig body towards the second protruding part at the part of the second protruding part away from the end of the fixed channel.
8. The analog cell fixture of claim 1, wherein, The bottom of the groove is provided with a first inclined surface near the end of the jig body, and the distance between the first inclined surface and the large face of the jig body provided with the groove gradually increases in the direction of the jig body end; The side of the clamping block facing the bottom of the groove is provided with a second inclined surface parallel to the first inclined surface, and the first inclined surface and the second inclined surface are opposite to each other, so that the fixed channel near the end of the jig body forms a guide section inclined to the end surface of the jig body. The part of the tab exposed from the fixing channel can be bent towards the large face of the recess provided on the jig body relative to the jig body.
9. The analog cell fixture of claim 8, wherein, The jig body is provided with a mounting groove for welding the end of the tab, and the mounting groove is in communication with the recess. A gasket is arranged in the mounting groove, the gasket is detachably mounted in the mounting groove, and a gap is formed between the gasket and the clamping block, the gap forming a part of the fixing channel. The first inclined surface is arranged on the side of the gasket towards the clamping block.
10. The analog cell fixture of claim 1, wherein, The material of the jig body is aluminum.