Lithium ion battery tab punching device

Abstract

The invention discloses a lithium ion battery tab punching device, relates to the technical field of battery processing, and aims to solve the problems that the requirement for increasing the contact area of a lithium ion battery tab and a busbar in the aviation field is met, and the hole pitch on the tab is deviated. Which comprises an equipment body and a battery, and is characterized in that an upper fixing plate is limited on the equipment body through bolts, a group of bottom plates are detachably mounted on the equipment body, and placing grooves for placing the battery are formed in the bottom plates; according to the battery tab punching device, a stepped boss structure is arranged on the lower portion of an upper fixing plate and is in a bilateral symmetry state, and four through holes are formed in a boss; the connecting plate pin is formed by installing the two pins together through the rectangular piece, the center distance of the connecting plate pin is fixed in the manufacturing process, and the distance deviation of punched lug holes caused by installation errors in the punching process is avoided. Not only is the problem of hole pitch deviation solved, but also the contact area of the lithium ion battery tab and the busbar is increased.

Description

Technical Field

[0001] This invention relates to the field of battery processing technology, and in particular to a device for drilling holes in the tabs of lithium-ion batteries. Background Technology

[0002] With the continuous development of aviation technology, the requirements for increasing the contact area between lithium-ion battery tabs and busbars and facilitating mass assembly are constantly increasing.

[0003] Therefore, this invention addresses the issue of increasing the contact area between the lithium-ion battery tabs and the busbar, particularly considering the narrow width of the lithium-ion battery tabs, which makes it difficult to drill multiple holes. This not only increases the contact area between the lithium-ion battery tabs and the busbar but also solves the problem of large deviations in the tab hole spacing caused by installation errors.

[0004] Therefore, this application provides a lithium-ion battery tab drilling device to meet the requirements. Summary of the Invention

[0005] The purpose of this application is to provide a lithium-ion battery tab drilling device, which aims to solve the problem of the need in the aerospace field to increase the contact area between the lithium-ion battery tab and the busbar, and the problem of deviation in the spacing of the holes on the tab.

[0006] To achieve the above objectives, this application provides the following technical solution: a lithium-ion battery tab drilling device, comprising a device body and a battery, characterized in that: an upper fixing plate is fixed on the device body by bolts, and a set of bottom plates is detachably installed on the device body, with a placement groove for placing the battery on the bottom plate; An operating hole is provided on the upper fixed plate, and a connecting plate pin slides up and down in the operating hole, and the connecting plate pin passes through the bottom of the upper fixed plate. Multiple sets of intermediate partitions are provided below the upper fixing plate. The intermediate partitions can be detachably installed on the base plate. A set of drilled fixing blocks is provided between two adjacent sets of intermediate partitions. The drilled fixing blocks are provided with through grooves, and the aforementioned connecting plate pins pass through the drilled fixing blocks. The base plate has a discharge hole located below the drilling fixing block, and the equipment body has a waste hole corresponding to the position of the discharge hole. The battery tabs are slidably connected to the through slot.

[0007] Preferably, the upper fixing plate is provided with two sets of symmetrical waist-shaped holes, which are limited by bolts on the equipment body to control the upper fixing plate to slide up and down; A boss is provided on the bottom surface of the operating hole, and a bottom groove is provided on the bottom surface of the upper fixing plate. There are two sets of bottom grooves, which are symmetrically arranged. A through hole is provided on the boss to connect the bottom groove. The connecting pin is installed in the through hole.

[0008] Preferably, the boss is stepped or rectangular.

[0009] Preferably, the connecting plate pin includes a pin, a rectangular part, and a limiting nut. The rectangular part is adapted to the bottom groove, and two sets of pins are provided on each set of rectangular parts. The bottom of the pin is provided with an angle. The upper part of the pin protrudes from the boss, and the limiting nut is threadedly connected to the protruding part of the pin.

[0010] Preferably, the bevel angle of the pin is 40-60 degrees.

[0011] Preferably, the outer wall of the drilling fixing block is provided with a through groove, and there are two sets of drilling fixing blocks. The top surface of the drilling fixing block is provided with an interconnecting hole that is vertically connected. The interconnecting hole and the pin are positioned and matched in size.

[0012] In summary, the technical effects and advantages of this invention are as follows: This invention provides a battery tab punching device. The upper fixing plate has a stepped boss structure at its lower part, symmetrically arranged from left to right. Four through holes are drilled within the boss. The connecting pin consists of two pins mounted together by a rectangular component. During manufacturing, their center distance is fixed, preventing deviations in the punched tab hole spacing due to installation errors. This not only solves the problem of hole spacing deviation but also increases the contact area between the lithium-ion battery tab and the busbar. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the present invention; Figure 3 This is a schematic diagram of the upper fixing plate structure of the present invention; Figure 4 This is a schematic diagram of the connecting plate pin structure of the present invention; Figure 5 This is a schematic diagram of the drilling fixing block structure of the present invention; Figure 6 This is a schematic diagram of the base plate structure of the present invention.

[0015] In the diagram: 1. Equipment body; 100. Waste hole; 2. Upper fixing plate; 200. Waist-shaped hole; 201. Operating hole; 202. Bottom groove; 203. Through hole; 204. Boss; 3. Connecting plate pin; 300. Rectangular part; 301. Pin; 302. Limiting nut; 4. Base plate; 400. Placement groove; 401. Discharge hole; 5. Battery; 6. Middle partition plate; 7. Drilled fixing block; 700. Through groove; 701. Connecting hole. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example: Reference Figure 1-6 The lithium-ion battery tab drilling device shown includes an upper fixing plate 2, a connecting plate pin 3, a bottom plate 4, a middle partition plate 6, and a drilling fixing block 7. The drilling fixing block 7 is fixed to the equipment body 1 by bolts. The upper fixing plate 1 is connected to the equipment body 1 through two sets of symmetrical waist-shaped holes 200 provided on it, and is limited by bolts so that the upper fixing plate 1 can only move up and down. The connecting pin 3 is adapted to the bottom groove 202 at the bottom of the upper fixed plate 2 by the rectangular part 300, thereby completing the benchmark installation and alignment. Then, the two sets of pins 301 on each set of rectangular parts 300 pass through the through hole 203 in the bottom groove 202, and some of the pins 301 pass through the boss 204 of the operating hole 201. Then, the limiting bolt 302 is used to fix the entire connecting pin 3 on the upper fixed plate 2, so that when the upper fixed plate 2 is raised and lowered, it drives the connecting pin 3 to rise and fall synchronously.

[0018] The bottom of the pin 301 is provided with a bevel angle, which is 50 degrees in this embodiment.

[0019] As one implementation method in this embodiment, the base plate 4 is connected and fixed to the equipment body 1 by bolts through holes provided at the four corners.

[0020] As one implementation method in this embodiment, in order to facilitate the processing of waste after perforating the tabs of the battery 5, a discharge hole 401 and a waste hole 100 are respectively provided on the base plate 4 and the equipment body 1.

[0021] As one embodiment of this example, the above-mentioned discharge hole 401 is provided in two sets, and three sets of intermediate partition plates 6 are fixedly installed on the outer side and the middle of the two sets of discharge holes 401 by bolts, and a set of drilling fixing blocks 7 are installed between the two sets of adjacent intermediate partition plates 6.

[0022] As one embodiment of this example, a set of through grooves 700 are provided on the outer wall of the drilling fixing block 7, and a connecting hole 701 is provided on the top surface of the drilling fixing block 7. The number of connecting holes 701 is the same as the number of pins 301 above it, and the connecting hole 701 is located above the material discharge hole 401.

[0023] As one embodiment of this invention, a placement groove 400 is provided on the top surface of the base plate 4. When the battery 5 needs to be processed, the battery 5 is placed on the placement groove 400 and pushed towards the through groove 700 so that the tab enters the through groove 700. Then, the upper fixing plate 2 is lowered to drive the pin 301 to punch holes in the tab.

[0024] The working principle of this invention is as follows: By starting the main body 1, the upper fixing plate 2 is raised and lowered. The connecting pin 3, through its own structure, is limited at the bottom groove 202 by the rectangular part 300. The upper part of the pin 301 passes through the through hole 203, and the limiting nut 302 is screwed onto the threaded section of the pin 301, thereby achieving installation limitation. The upper fixing plate 2 drives the connecting pin 3 to fall down, and the pin 301 is inserted into the connecting hole 701 on the drilling fixing block 7. During this process, it passes through the through groove 700 (before this process, the battery 5 is placed in the placement groove 400 of the bottom plate 4 and pushed forward so that the electrode tab is inserted into the through groove 700), abuts against the electrode tab, and completes the perforation. The punched waste material falls from the discharge hole 401, passes through the waste material hole 100 to complete the punching operation. Then, the upper fixing plate 2 drives the connecting pin 3 to reset, and the battery 5 located in the placement groove 400 can be taken out.

[0025] The two pins 301 are assembled together by the connecting plate pin 3. During manufacturing, their center distance is fixed, and during punching, the spacing of the punched tab holes will not be deviated due to installation errors. The integrated design of the connecting plate pin 3 ensures the accuracy of punching. At the same time, it solves the problem of poor punching due to small hole center distance.

[0026] When it is necessary to remove the upper fixing plate 2, remove the bolt located in the waist-shaped hole 200 to disconnect the connection between the upper fixing plate 2 and the equipment body 1. Then, unscrew the limiting nut 302 located above the boss 204 to release the limiting of the pin 301. Remove the pin 301 and the rectangular piece 300 from the through hole 203 and the bottom groove 202 respectively, thus completing the removal of the connecting plate pin 3.

[0027] When it is necessary to remove the limiting position of the drilling fixing block 7, remove the bolt connection between the drilling fixing block 7 and the base plate 4, and then release the bolt connection between the intermediate partition 6 and the base plate 4.

[0028] The electromechanical connection involved in this invention is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It is common knowledge.

[0029] Components not described in detail in this article are existing technologies.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for drilling holes in the tabs of a lithium-ion battery, comprising a device body (1) and a battery (5), characterized in that: The device body (1) is fixed with an upper fixing plate (2) by bolts, and a set of base plates (4) are detachably installed on the device body (1), and a placement slot (400) for placing batteries (5) is provided on the base plate (4). The upper fixing plate (2) is provided with an operation hole (201), and a connecting plate pin (3) slides up and down in the operation hole (201), and the connecting plate pin (3) passes through the bottom of the upper fixing plate (2); Multiple sets of intermediate partitions (6) are provided below the upper fixing plate (2). The intermediate partitions (6) are detachably installed on the bottom plate (4). A set of drilling fixing blocks (7) is provided between two adjacent sets of intermediate partitions (6). The drilling fixing blocks (7) are provided with through grooves (700), and the connecting pins (3) pass through the drilling fixing blocks (7). The base plate (4) is provided with a discharge hole (401) located below the drilling fixing block (7), and the equipment body (1) is provided with a waste hole (100) corresponding to the position of the discharge hole (401). The tabs of the battery (5) are slidably connected to the through slot (700).

2. The lithium-ion battery tab drilling device according to claim 1, characterized in that: The upper fixing plate (2) is provided with two sets of symmetrical waist-shaped holes (200). The waist-shaped holes (200) are limited by bolts on the equipment body (1) to control the upper fixing plate (2) to slide up and down. A boss (204) is provided on the bottom surface of the operating hole (201), and a bottom groove (202) is provided on the bottom surface of the upper fixing plate (2). There are two sets of bottom grooves (202) arranged symmetrically. A through hole (203) communicating with the bottom groove (202) is provided on the boss (204). The connecting pin (3) is installed in the through hole (203).

3. The lithium-ion battery tab drilling device according to claim 2, characterized in that: The boss (204) is stepped or rectangular.

4. The lithium-ion battery tab drilling device according to claim 3, characterized in that: The connecting pin (3) includes a pin (301), a rectangular piece (300), and a limiting nut (302). The rectangular piece (300) is adapted to the bottom groove (202), and two sets of pins (301) are provided on each set of rectangular pieces (300). The bottom of the pin (301) is provided with an angle. The upper part of the pin (301) protrudes from the boss (204), and the limiting nut (302) is threadedly connected to the protruding part of the pin (301).

5. A lithium-ion battery tab drilling device according to claim 4, characterized in that: The angle of inclination of the pin (301) is 40 degrees to 60 degrees.

6. The lithium-ion battery tab drilling device according to claim 4, characterized in that: The outer wall of the drilling fixing block (7) is provided with a through groove (700), and the drilling fixing block (7) is provided with two sets. The top surface of the drilling fixing block (7) is provided with an interconnecting hole (701) that is vertically connected. The interconnecting hole (701) and the pin (301) are positioned and matched in size.

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