A lithium battery electrode alignment and positioning fixture

Abstract

This utility model discloses an electrode alignment and positioning fixture for lithium battery processing, including a battery limiting box. An "L"-shaped frame is provided on the top side of the battery limiting box. A battery and a data control display are installed on both sides of the battery limiting box. An adjusting screw is threaded onto the "L"-shaped frame, and a pressure plate is connected to the bottom of the adjusting screw. A groove is formed on the top side of the battery limiting box, and a pressure sensor is installed inside the groove. A pressure cap is provided on the top of the battery limiting box, and a groove and a through hole are formed inside the pressure cap. A nickel sheet is placed inside the groove. The two sides of the pressure cap are located between the pressure plate and the pressure sensor. A lithium battery body is placed inside the battery limiting box, and the nickel sheet is attached to the top electrode of the lithium battery body. This device facilitates the adjustment of the fixing pressure of the pressure cap, thereby ensuring the uniformity of the pressure and avoiding insufficient or excessive pressure, thus ensuring welding quality.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery processing technology, specifically to an electrode alignment and positioning fixture for lithium battery processing. Background Technology

[0002] Lithium-ion batteries are rechargeable batteries that store and release energy by moving lithium ions between positive and negative electrodes. They are widely used in various electronic devices, including but not limited to smartphones, laptops, electric vehicles, and energy storage systems, due to their high energy density, long cycle life, and low self-discharge rate.

[0003] Currently, in the process of welding nickel sheets and electrodes for lithium batteries, the lithium battery and nickel sheets need to be manually installed into a fixture, and then the top cover of the fixture is fixed with screws. Manual fixing cannot ensure uniform pressure on the top cover, which can easily lead to problems such as loose fit or excessive pressure on the top cover. This can result in loose welding or deformation of the nickel sheets, affecting the welding quality and requiring improvement. Utility Model Content

[0004] The purpose of this invention is to provide an electrode alignment and positioning fixture for lithium battery processing, so as to solve the problem mentioned in the background art that the fixing pressure of the fixture top cover is not easy to control and affects the welding quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery electrode alignment and positioning fixture, comprising a battery limiting box, an "L"-shaped frame on the top side of the battery limiting box, an adjusting screw threaded onto the "L"-shaped frame, a pressure plate connected to the bottom of the adjusting screw, a groove on the top side of the battery limiting box, a pressure sensor installed inside the groove, a pressure cover on the top of the battery limiting box, a groove and a through hole inside the pressure cover, a nickel sheet inside the groove, the two sides of the pressure cover being located between the pressure plate and the pressure sensor, a lithium battery body inside the battery limiting box, and the nickel sheet attached to the top electrode of the lithium battery body.

[0006] Preferably, a battery and a data control display are installed on both sides of the battery limiting box, and both the battery and the data control display are electrically connected to the pressure sensor.

[0007] Preferably, the inner wall of the battery limiting box is fixedly connected with a support block, and the support block is symmetrically distributed about the bisector of the battery limiting box.

[0008] Preferably, the top of the support block is provided with a battery limiting plate, and the battery limiting plate is provided with multiple through holes laid flat, and the battery limiting plate is sleeved on the outer wall of the lithium battery body.

[0009] Preferably, the inner wall of the pressure cap is provided with a blind hole, and a connecting seat is connected inside the blind hole through a bearing, and the connecting seat and the pressure cap are rotatably connected.

[0010] Preferably, a spring and a sleeve are fixedly connected to the bottom of the connecting seat, with the spring sleeved on the outer wall of the sleeve.

[0011] Preferably, the lower end of the sleeve is slidably connected to a movable rod, and the lower ends of the movable rod and the spring are connected to a positioning plate. The movable rod and the spring are both fixedly connected to the positioning plate. The positioning plate is attached to the bottom of the nickel sheet, and the positioning plate is symmetrically distributed about the bisector of the pressure cap.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) This device facilitates the adjustment of the fixing pressure of the gland, thereby ensuring the uniformity of the gland pressure, avoiding insufficient or excessive pressure, and ensuring welding quality.

[0014] (2) This device installs a pressure sensor on the top side of the battery limiting box and sets an adjusting screw. When the pressure cover is located at the top of the battery limiting box and the pressure sensor, the adjusting screw is rotated to apply pressure to the pressure cover and the pressure sensor. The pressure sensor detects the pressure in time, ensuring the uniformity of pressure on both sides of the pressure cover and avoiding excessive pressure that could damage the lithium battery body and nickel sheet, thus ensuring welding accuracy and efficiency.

[0015] (3) This device sets a battery limiting plate inside the battery limiting box. The battery limiting plate can be sleeved on the outer wall of the lithium battery body to limit the lithium battery body. At the same time, a positioning plate is set on the bottom side of the cover. The positioning plate can position the nickel sheet, thereby avoiding displacement of the nickel sheet and the lithium battery body and ensuring the accuracy of the contact position between the nickel sheet and the lithium battery body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the electrode alignment and positioning fixture for lithium battery processing according to this utility model;

[0017] Figure 2 This is a cross-sectional view of an electrode alignment and positioning fixture for lithium battery processing according to this utility model;

[0018] Figure 3 This utility model relates to an electrode alignment and positioning fixture for lithium battery processing. Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This utility model relates to an electrode alignment and positioning fixture for lithium battery processing. Figure 2 Enlarged view at point B in the middle;

[0020] Figure 5This is a top view of the battery limiting plate of a lithium battery processing electrode alignment and positioning fixture according to this utility model.

[0021] In the diagram: 1. Pressure cap; 2. Adjusting screw; 3. Data control display; 4. Battery; 5. Battery limit box; 6. Nickel sheet; 7. Lithium battery body; 8. Battery limit plate; 9. Support block; 10. Positioning plate; 11. Connecting seat; 12. Spring; 13. Sleeve; 14. Movable rod; 15. Pressure plate; 16. Pressure sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5This utility model provides a technical solution: an electrode alignment and positioning fixture for lithium battery processing, including a battery limiting box 5. A battery 4 and a data control display 3 are installed on both sides of the battery limiting box 5. Both the battery 4 and the data control display 3 are electrically connected to a pressure sensor 16. The data control display 3 is responsible for adjusting the value and displaying the data. The pressure sensor 16 in this structure is a digital pressure sensor, which can be powered by the battery 4, facilitating the movement and welding of the battery limiting box 5. A support block 9 is fixedly connected to the inner wall of the battery limiting box 5. The support blocks 9 are symmetrically distributed about the bisector of the battery limiting box 5. A battery limiting plate 8 is provided on the top of the support block 9. Multiple through holes are laid flat on the battery box 5. The battery limiting plate 8 is fitted onto the outer wall of the lithium battery body 7. This structure ensures the stability of the lithium battery body 7 inside the battery limiting box 5 through the battery limiting plate 8. The support block 9 can support the battery limiting plate 8, preventing it from shifting downwards and facilitating its removal from the battery limiting box 5. An "L"-shaped frame is provided on the top side of the battery limiting box 5. An adjusting screw 2 is threaded onto the "L"-shaped frame. A pressure plate 15 is connected to the bottom of the adjusting screw 2. A groove is provided on the top side of the battery limiting box 5, and a pressure sensor 16 is installed inside the groove. A pressure cover 1 is provided on the top of the battery limiting box 5. A blind hole is provided on the inner wall of the pressure cover 1. The blind hole is connected to a bearing. A connecting seat 11 is provided, which forms a rotatable connection with the pressure cap 1. This connecting seat 11 can rotate, and its rotation allows for adjustment of the angle of the positioning plate 10, facilitating separation of the positioning plate 10 from the nickel sheet 6 or bringing the positioning plate 10 closer to the nickel sheet 6. A spring 12 and a sleeve 13 are fixedly connected to the bottom of the connecting seat 11. The spring 12 is sleeved on the outer wall of the sleeve 13. This structure uses the sleeve 13 and the movable rod 14 to limit the spring 12, preventing it from tilting. The spring 12's tension allows the positioning plate 10 to adhere to the bottom side of the nickel sheet 6, thus limiting and positioning the nickel sheet 6 and preventing it from detaching from the pressure cap 1. The lower end of the sleeve 13 slides... A movable rod 14 is connected to the lower end of the movable rod 14 and the spring 12. A positioning plate 10 is connected to the lower end of the movable rod 14 and the spring 12. The movable rod 14 and the spring 12 are both fixedly connected to the positioning plate 10. The positioning plate 10 is attached to the bottom of the nickel sheet 6. The positioning plate 10 is symmetrically distributed about the bisector of the pressure cover 1. This structure can move in coordination with the extension and retraction of the spring 12 through the sleeve 13 and the movable rod 14. The positioning plate 10 can be made of insulating plastic. The pressure cover 1 has a groove and a through hole inside. The nickel sheet 6 is set inside the groove. The two sides of the pressure cover 1 are located between the pressure plate 15 and the pressure sensor 16. The battery limiting box 5 is equipped with a lithium battery body 7. The nickel sheet 6 is attached to the top electrode of the lithium battery body 7. The through hole at the top of the pressure cover 1 is used for welding.

[0024] Working principle: When using this lithium battery processing electrode alignment and positioning fixture, first place the battery limiting plate 8 on the support block 9 inside the battery limiting box 5, then place the lithium battery body 7 inside the battery limiting plate 8, and then place the nickel sheet 6 in the groove at the bottom of the pressure cover 1. Then rotate the positioning plate 10 so that the positioning plate 10 fits against the bottom of the nickel sheet 6 to limit the nickel sheet 6. Then insert the pressure cover 1 from one end of the battery limiting box 5 so that the pressure cover 1 is located between the pressure plate 15 and the pressure sensor 16. Then rotate the adjusting screw 2, and the adjusting screw 2 drives the pressure plate 15 to push the pressure cover 1. At this time, the pressure cover 1 applies pressure to the pressure sensor 16, and the pressure sensor 16 displays the data through the data control display 3, thereby ensuring that the pressure cover 1 is under appropriate pressure.

[0025] 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 lithium battery electrode alignment and positioning fixture, comprising a battery limiting box (5), characterized in that: The battery limiting box (5) is provided with an "L"-shaped frame on the top side. An adjusting screw (2) is threaded onto the "L"-shaped frame. A pressure plate (15) is connected to the bottom of the adjusting screw (2). A groove is provided on the top side of the battery limiting box (5). A pressure sensor (16) is installed inside the groove. A pressure cover (1) is provided on the top of the battery limiting box (5). A groove and a through hole are provided inside the pressure cover (1). A nickel sheet (6) is provided inside the groove. The two sides of the pressure cover (1) are located between the pressure plate (15) and the pressure sensor (16). A lithium battery body (7) is provided inside the battery limiting box (5). The nickel sheet (6) is attached to the top electrode of the lithium battery body (7).

2. The electrode alignment and positioning fixture for lithium battery processing according to claim 1, characterized in that: The battery limiting box (5) is equipped with a battery (4) and a data control display (3) on both sides. The battery (4) and the data control display (3) are electrically connected to the pressure sensor (16).

3. The electrode alignment and positioning fixture for lithium battery processing according to claim 1, characterized in that: The inner wall of the battery limiting box (5) is fixedly connected with a support block (9), and the support block (9) is symmetrically distributed about the bisector of the battery limiting box (5).

4. The electrode alignment and positioning fixture for lithium battery processing according to claim 3, characterized in that: The top of the support block (9) is provided with a battery limiting plate (8), and multiple through holes are laid flat on the battery limiting plate (8). The battery limiting plate (8) is sleeved on the outer wall of the lithium battery body (7).

5. The electrode alignment and positioning fixture for lithium battery processing according to claim 1, characterized in that: The inner wall of the pressure cap (1) is provided with a blind hole, and a connecting seat (11) is connected inside the blind hole through a bearing. The connecting seat (11) and the pressure cap (1) are rotatably connected.

6. The electrode alignment and positioning fixture for lithium battery processing according to claim 5, characterized in that: The bottom of the connecting seat (11) is fixedly connected to a spring (12) and a sleeve (13), with the spring (12) sleeved on the outer wall of the sleeve (13).

7. The electrode alignment and positioning fixture for lithium battery processing according to claim 6, characterized in that: The lower end of the sleeve (13) is slidably connected to a movable rod (14), and the lower ends of the movable rod (14) and the spring (12) are connected to a positioning plate (10). The movable rod (14) and the spring (12) are both fixedly connected to the positioning plate (10). The positioning plate (10) is attached to the bottom of the nickel sheet (6), and the positioning plate (10) is symmetrically distributed about the bisector of the pressure cap (1).

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