Electrode pole cover plate of lithium battery

Abstract

The utility model relates to a lithium battery electrode post cover plate, which aims to solve the technical problem that the current post cover plate is not easy to install and dismantle, and comprises a cover plate main body, a battery shell and a first cover plate, the two sides of the cover plate main body are fixedly provided with posts, the bottom end face of the cover plate main body is provided with a clamping strip, the top end of the battery shell is provided with an embedding opening, and the first cover plate is provided with a second cover plate. The cover plate body is provided with an embedding opening, an embedding groove is formed in the top end of the embedding opening, the clamping strip is installed in the embedding groove in an embedded mode, a sealing strip is laid on the surface of the clamping strip, and connecting pieces are arranged on the two sides of the cover plate body. The first cover plates on the two sides of the cover plate main body are fixed on the battery shell, and then the first cover plates are fixed through buckling connection of the second cover plates and the second buckling grooves, so that the firmness of connection between the cover plate main body and the battery shell is improved, and the cover plate is convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery components, in particular to a lithium battery electrode column cover plate. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and a non-aqueous electrolyte solution. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable.

[0003] The pole cover of lithium batteries mainly adopts an integrated structure or a screw-fixed structure. After the battery is installed, it is easily affected by the external force generated by the equipment and is prone to vibration of a certain amplitude. Under the influence of vibration, if the cover is fixed with screws, the screws will loosen, resulting in looseness between the cover and the shell, affecting the use of the battery. At the same time, if it is an integrated cover, it cannot be repaired or replaced specifically when damaged, and the entire battery needs to be replaced, resulting in high replacement costs.

[0004] In view of this, we propose a lithium battery electrode column cover. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, meet practical needs, and provide a lithium battery electrode pole cover to solve the problem of connection limitations between the lithium battery pole cover and the battery housing.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a lithium battery electrode pole cover plate, including a cover plate body, a battery shell and a first cover plate, poles are fixedly installed on both sides of the cover plate body, a clamping strip is provided on the bottom end surface of the cover plate body, an embedding opening is provided on the top of the battery shell, an embedding groove is provided on the top of the embedding opening, the clamping strip is embedded in the embedding groove, a sealing strip is laid on the surface of the clamping strip, connecting members are provided on both sides of the cover plate body, a rotating shaft is fixedly connected between the connecting members, the first cover plate is rotatably connected to the cover plate on both sides of the cover plate body through the rotating shaft, fixing grooves are provided on both sides of the battery shell, a third through groove is opened on the bottom end surface of the fixing groove, two groups of the third through grooves are provided, and the second cover plate is rotatably connected in the third through groove.

[0007] Preferably, a first through slot is formed at the top of the first cover plate, and two groups of the first through slots are provided. Fixing holes are formed inside the two groups of the first through slots, and the fixing holes are communicated with the first cover plate.

[0008] Preferably, a clamping groove is provided on the engaging end surface of the fixing groove, the clamping groove corresponds to the fixing hole in position and has the same size, and a rubber sleeve is provided inside the clamping groove.

[0009] Preferably, a second through groove is opened on the bottom end surface of the fixing groove, and the second through groove is provided with two groups. A buckle is rotatably connected in the second through groove, and the buckle is "L"-shaped. The end of the buckle corresponds to the position of the buckle slot, and the buckle body part of the buckle rotatably connected is matched with the first through groove.

[0010] Preferably, through holes are provided on both sides of the fixing groove, and limiting holes are provided on both sides of the second cover plate. Internal threads are provided in the limiting holes, and the limiting holes correspond to the through holes in position and have the same size.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The lithium battery cover plate body and the battery shell adopt a double interlocking fixed structure. When the cover plate body is connected to the battery shell, while ensuring the sealed connection between the cover plate body and the shell, the first cover plate rotating on both sides is used to limit the cover plate body in the fixing grooves on both sides of the battery shell, and then the first cover plate and the battery shell are locked by an "L"-shaped buckle, and finally the second cover plate is used to fix them as a whole. Under the double locking method, the sealing of the battery cover plate connection and the stability and firmness of the connection are effectively guaranteed, which is not easily affected by external forces, and also provides convenience for the disassembly, assembly and replacement of the cover plate body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the top surface structure of the cover body of the utility model;

[0015] Figure 3 This is a schematic diagram of the bottom surface structure of the cover plate body of the utility model;

[0016] Figure 4 This is a schematic diagram of the battery housing structure of the utility model;

[0017] Figure 5 For the utility model Figure 4 Enlarged schematic diagram at point A in the middle.

[0018] In the figure: 1. cover plate body; 2. battery housing; 3. connector; 4. rotating shaft; 5. first cover plate; 6. first through slot; 7. fixing hole; 8. clamping strip; 9. fitting slot; 10. fixing slot; 11. clamping slot; 12. second through slot; 13. buckle; 14. third through slot; 15. second cover plate; 16. limiting hole; 17. through hole. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Example 1: A lithium battery electrode column cover, see Figures 1 to 5 , including a cover plate body 1, a battery shell 2 and a first cover plate 5, poles are fixedly installed on both sides of the cover plate body 1, a clamping strip 8 is provided on the bottom end surface of the cover plate body 1, a fitting opening is provided on the top of the battery shell 2, a fitting groove 9 is provided on the top of the fitting opening, the clamping strip 8 is fitted in the fitting groove 9, a sealing strip is laid on the surface of the clamping strip 8, connecting members 3 are provided on both sides of the cover plate body 1, a rotating shaft 4 is fixedly connected between the connecting members 3, the first cover plate 5 is rotatably connected to the two sides of the cover plate body 1 through the rotating shaft 4, both sides of the battery shell 2 are provided with fixing grooves 10, the bottom end surface of the fixing groove 10 is provided with a third through groove 14, the third through groove 14 is provided with two groups, and the second cover plate 15 is rotatably connected in the third through groove 14, the first cover plate 5 is fixed by the buckle 13, and the first cover plate 5 is further fixed by the cooperation of the second cover plate 15 and the limiting hole 16, so as to realize the rapid installation of the cover plate body 1 and the battery shell 2;

[0021] Specifically, according to Figure 2-Figure 5 As shown, a first through slot 6 is formed at the top of the first cover plate 5, and two groups of the first through slots 6 are provided. Fixing holes 7 are provided inside the two groups of first through slots 6, and the fixing holes 7 are communicated with the first cover plate 5;

[0022] Furthermore, through the first through slot 6 and the fixing hole 7, when the first buckle 13 is turned, the first buckle 13 is clamped in the first clamping slot 11 through the fixing hole 7, and the first through slot 6 facilitates positioning of the connection portion with the first buckle 13;

[0023] Furthermore, according to Figure 1 , Figure 2 and Figure 4 As shown, a clamping groove 11 is provided on the fitting end surface of the fixing groove 10. The clamping groove 11 corresponds to the position of the fixing hole 7 and has the same size. A rubber sleeve is provided inside the clamping groove 11.

[0024] It is worth noting that when the first cover plates 5 on both sides of the cover plate body 1 are rotated and closely attached to the engaging end faces of the fixing grooves 10, the clamping grooves 11 and the fixing holes 7 are in a communicating state, so that the ends of the buckles 13 are conveniently clamped in the clamping grooves 11 through the fixing holes 7;

[0025] It is worth noting that according to Figure 2-Figure 5 As shown, the bottom end surface of the fixing groove 10 is provided with a second through groove 12, and the second through groove 12 is provided with two groups. A buckle 13 is rotatably connected in the second through groove 12, and the buckle 13 is "L" shaped. The end of the buckle 13 corresponds to the position of the slot 11, and the buckle body part of the buckle 13 rotatably connected fits with the first through groove 6;

[0026] It is worth mentioning that when the buckle 13 is engaged in the slot 11 to fix the first cover plate 5, the connecting portion of the buckle 13 is completely embedded in the first cover plate 5, so that it does not affect the installation and fixation of the second cover plate 15;

[0027] It is worth emphasizing that according to Figure 2 , Figure 4 and Figure 5 As shown, through holes 17 are provided on both sides of the fixing groove 10, and limiting holes 16 are provided on both sides of the second cover plate 15. Internal threads are provided in the limiting holes 16. The limiting holes 16 correspond to the through holes 17 in position and have the same size.

[0028] In addition, by rotating the second cover plate 15, the second cover plate 15 is accommodated in the fixing groove 10. At this time, the limiting holes 16 on both sides of the second cover plate 15 are connected with the through holes 17 on both sides of the fixing groove 10. The second cover plate 15 is locked and fixed to the fixing groove 10 by bolts, thereby achieving the effect of the second cover plate 15 clamping and fixing the first cover plate 5.

[0029] Working principle: The cover body 1 is connected to the fitting groove 9 at the fitting opening of the battery housing 2 through the clamping strip 8 at the bottom thereof, and the first cover plates 5 on both sides of the cover body 1 are rotated to make them close to the inner walls of the fixing grooves 10 on both sides of the battery housing 2. At this time, the fixing holes 7 on the first cover plate 5 correspond to the positions of the first buckle grooves on the inner walls of the fixing grooves 10, and the buckle 13 at the bottom of the fixing groove 10 is moved to clamp it in the clamping groove 11. Because the first cover plate 5 is provided with a first through groove 6, the first chain connected to the buckle 13 is The connecting terminal can be embedded in the first cover plate 5. In this way, the first cover plate 5 is fixed to the battery housing 2. By rotating the second cover plate 15, the second cover plate 15 is tightly attached to the first cover plate 5. The limiting holes 16 on both sides of the second cover plate 15 are in a connected state with the through holes 17 on both sides of the fixing groove 10. The bolts are rotated to lock and fix the second cover plate 15 and the fixing groove 10. In this way, the first cover plate 5 is clamped and fixed again, thereby achieving the firmness of the connection between the cover plate body 1 and the battery housing 2.

[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A lithium battery electrode column cover, characterized in that: include: A cover plate body (1), a battery shell (2) and a first cover plate (5), wherein poles are fixedly mounted on both sides of the cover plate body (1), a clamping strip (8) is provided on the bottom end surface of the cover plate body (1), a fitting opening is provided on the top end of the battery shell (2), a fitting groove (9) is provided on the top end of the fitting opening, the clamping strip (8) is fitted in the fitting groove (9), a sealing strip is laid on the surface of the clamping strip (8), connecting members (3) are provided on both sides of the cover plate body (1), a rotating shaft (4) is fixedly connected between the connecting members (3), the first cover plate (5) is rotatably connected to both sides of the cover plate body (1) through the rotating shaft (4), both sides of the battery shell (2) are provided with fixing grooves (10), the bottom end surface of the fixing grooves (10) is provided with third through grooves (14), two groups of the third through grooves (14) are provided, and a second cover plate (15) is rotatably connected in the third through grooves (14).

2. The lithium battery electrode column cover plate according to claim 1, characterized in that: A first through slot (6) is provided at the top end of the first cover plate (5), and the first through slots (6) are provided in two groups. Fixing holes (7) are provided inside the two groups of the first through slots (6), and the fixing holes (7) are communicated with the first cover plate (5).

3. The lithium battery electrode column cover plate according to claim 2, characterized in that: The engaging end surface of the fixing groove (10) is provided with a clamping groove (11), the clamping groove (11) corresponds to the position of the fixing hole (7) and has the same size, and a rubber sleeve is provided inside the clamping groove (11).

4. The lithium battery electrode column cover plate according to claim 3, characterized in that: The bottom end surface of the fixing groove (10) is provided with a second through groove (12), and the second through groove (12) is provided with two groups. A buckle (13) is rotatably connected in the second through groove (12), and the buckle (13) is in an "L" shape. The end of the buckle (13) corresponds to the position of the buckle groove (11), and the buckle body part of the buckle (13) rotatably connected is matched with the first through groove (6).

5. The lithium battery electrode column cover plate according to claim 1, characterized in that: Through holes (17) are provided on both sides of the fixing groove (10), and limiting holes (16) are provided on both sides of the second cover plate (15). Internal threads are provided in the limiting holes (16), and the limiting holes (16) correspond in position to the through holes (17) and have the same size.

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