CN218548587U

CN218548587U - Cylindrical battery shell structure and cylindrical battery

Info

Publication number: CN218548587U
Application number: CN202222703374.2U
Authority: CN
Inventors: 曾金生; 陈云; 秦代强; 袁路平; 赖华平; 刘方华
Original assignee: Huizhou Dianming New Energy Technology Co ltd
Current assignee: Huizhou Dianming New Energy Technology Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-02-28
Anticipated expiration: 2032-10-13

Abstract

The utility model relates to a cylinder battery case structure and cylinder battery, wherein cylinder battery case structure includes battery main part, casing, apron, first insulating part and second insulating part, battery main part locates in the casing, first insulating part locates battery main part's upper end, the periphery of first insulating part is formed with the perisporium that extends along vertical direction, the apron is located the inboard of perisporium, the upper end incurve of casing forms the hem, the second insulating part is located the apron with between the hem. The utility model discloses can guarantee the insulating nature between casing and the apron, and simple structure, easily equipment effectively improves production efficiency, reduces into manufacturing cost.

Description

Cylindrical battery shell structure and cylindrical battery

Technical Field

The utility model relates to a battery field particularly, relates to a cylinder battery case structure and cylinder battery.

Background

The current cylindrical battery generally comprises a shell and a cover plate, wherein the cover plate of a part of the cylindrical battery has polarity, and the cover plate of the cylindrical battery cannot be contacted with the shell, otherwise, the short circuit of a battery core can be caused, and the product quality is influenced. However, the insulating structures of the shell and the cover plate of the conventional cylindrical battery are complex and are not easy to assemble, so that the production efficiency is reduced, and the product cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cylinder battery case structure and cylinder battery can guarantee the insulating nature between casing and the apron, and simple structure, and easily equipment effectively improves production efficiency, reduces into manufacturing cost.

The utility model provides a cylinder battery case structure, includes battery main part, casing, apron, first insulating part and second insulating part, battery main part locates in the casing, first insulating part is located battery main part's upper end, the periphery of first insulating part is formed with the perisporium that extends along vertical direction, the apron is located the inboard of perisporium, the upper end incurve of casing forms the hem, the second insulating part is located the apron with between the hem.

In above-mentioned technical scheme, first insulating part and second insulating part can keep apart apron and casing to realize the insulation between apron and the casing, the rethread hem compresses tightly apron, first insulating part and second insulating part fixedly, and overall structure is simple reasonable, has guaranteed the performance of product. During the equipment, only need pack into inside the casing in proper order battery subject, first insulating part, apron and second insulating part, again with casing upper end bending type hem, can accomplish the equipment, easy operation effectively improves the packaging efficiency, reduces into manufacturing cost.

Furthermore, a convex edge is formed on the inner peripheral side of the peripheral wall, a positioning groove is formed on the peripheral surface of the cover plate, and the convex edge can be embedded into the positioning groove to fix the cover plate.

In above-mentioned technical scheme, through set up protruding edge in the inner periphery side of perisporium, when the apron was placed on first insulating part, the constant head tank and the protruding cooperation of following of accessible periphery realized the relative fixation between apron and the first insulating part, produced the off normal when avoiding the equipment. When the cover plate is specifically implemented, the cover plate can be firstly installed into the first insulating part, the cover plate and the first insulating part form a part, and then the part is integrally placed into the shell, so that the assembling process is more flexible and convenient.

Further, the upper end of battery main part is equipped with utmost point post, first insulating part, apron and second insulating part correspond utmost point post is equipped with the through-hole, utmost point post wears to locate in proper order first insulating part, apron and second insulating part.

In the technical scheme, the first insulating part, the cover plate and the second insulating part are provided with the through holes corresponding to the pole columns, the first insulating part, the cover plate and the second insulating part sequentially penetrate through the pole columns, the battery can be assembled, and the operation is simple and convenient.

Further, the second insulating part comprises a horizontal part and a vertical part, the horizontal part is located between the upper end face of the cover plate and the lower end face of the folded edge, and the vertical part is sleeved on the periphery of the pole.

In the technical scheme, the horizontal part can enable the upper end face of the cover plate to be insulated from the lower end face of the folded edge, and the vertical part can enable the circumferential face of the pole to be insulated from the folded edge, so that the insulation effect of the battery is ensured.

Further, the upper end of the vertical part is flush with the upper end of the pole.

Among the above-mentioned technical scheme, the upper end of vertical portion flushes with the upper end of utmost point post, can guarantee that utmost point post easily contacts with external contact, is convenient for the battery to be connected with outside electricity when guaranteeing insulating properties.

Furthermore, the upper end surface and the lower end surface of the horizontal part are respectively abutted with the folded edge and the cover plate.

In above-mentioned technical scheme, the up end and the lower terminal surface of horizontal part respectively with hem and apron butt, can guarantee insulating properties on the one hand, on the other hand can guarantee the rigidity of first insulating part, apron and second insulating part, make the structure of battery more stable.

Further, the height of the peripheral wall is matched with that of the cover plate.

In the technical scheme, the height of the peripheral wall is matched with the height of the cover plate, so that the lower end face of the second insulating part can be abutted against the cover plate, and the structure is more stable.

Further, the first insulating part and the second insulating part are made of insulating materials.

In the above technical solution, the first insulating member and the second insulating member are both made of insulating materials, for example, the first insulating member and the second insulating member may be made of existing insulating glue, so as to ensure insulating performance.

A cylindrical battery comprises the cylindrical battery shell structure.

Compared with the prior art, the beneficial effects of the utility model are that: first insulating part and second insulating part can keep apart apron and casing to realize the insulation between apron and the casing, the rethread hem compresses tightly apron, first insulating part and second insulating part fixedly, and overall structure is simple reasonable, has guaranteed the performance of product. During the equipment, only need pack into inside the casing in proper order battery subject, first insulating part, apron and second insulating part, again with casing upper end bending type hem, can accomplish the equipment, easy operation effectively improves the packaging efficiency, reduces into manufacturing cost.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a partially enlarged schematic view of fig. 1.

The reference numbers illustrate:

the battery comprises a battery body 1, a pole post 11, a shell 2, a folded edge 21, a cover plate 3, a first insulating piece 4, a bottom surface 41, a peripheral wall 42, a convex edge 43, a second insulating piece 5, a horizontal part 51 and a vertical part 52.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1 and 2, in a preferred embodiment, the cylindrical battery case structure of the present invention mainly includes a battery main body 1, a case 2, a cover plate 3, a first insulating member 4, and a second insulating member 5. The battery body 1 is cylindrical, the case 2 is formed in a hollow cylindrical shape, the battery body 1 is disposed in the case 2, and the first insulating member 4 is disposed at the upper end of the battery body 1. Specifically, the first insulating member 4 includes a bottom surface 41, the bottom surface 41 is circular, the diameter of the bottom surface 41 matches the diameter of the battery body 1, a peripheral wall 42 extending in the vertical direction is formed on the periphery of the bottom surface 41, the cover plate 3 is disposed inside the peripheral wall 42, the upper end of the case 2 is bent inward to form the folded edge 21, and the second insulating member 5 is disposed between the cover plate 3 and the folded edge 21.

According to the technical scheme, the cover plate 3 can be separated from the shell 2 by the first insulating part 4 and the second insulating part 5, so that insulation between the cover plate 3 and the shell 2 is realized, the cover plate 3, the first insulating part 4 and the second insulating part 5 are pressed and fixed by the folded edge 21, the whole structure is simple and reasonable, and the performance of a product is guaranteed. During the equipment, only need pack into 2 insides of casing with battery body 1, first insulating part 4, apron 3 and second insulating part 5 in proper order, rethread current bending apparatus becomes hem 21 with 2 upper ends bending type of casing, can accomplish the equipment, and easy operation effectively improves the packaging efficiency, reduces into manufacturing cost.

In this embodiment, the inner peripheral side of the peripheral wall 42 is formed with a protruding edge 43, the protruding edge 43 is ring-shaped, the peripheral surface of the cover plate 3 is provided with a positioning groove matched with the protruding edge 43, and when the cover plate 3 is installed inside the first insulating member 4, the protruding edge 43 can be inserted into the positioning groove, so that the cover plate 3 and the first insulating member 4 are relatively fixed.

By providing the protruding edge 43 on the inner peripheral side of the peripheral wall 42, the positioning groove on the outer periphery can be matched with the protruding edge 43, so that the cover plate 3 and the first insulating member 4 can be fixed relatively, and deviation during assembly can be avoided. During specific implementation, the cover plate 3 can be firstly installed into the first insulating part 4, so that the first insulating part and the second insulating part form a part, and then the whole part is placed into the shell 2, so that the assembling process is more flexible and convenient.

The upper end of the battery body 1 is provided with a pole 11, the first insulating member 4, the cover plate 3 and the second insulating member 5 are provided with through holes, not shown, corresponding to the pole 11, and the pole 11 sequentially penetrates through the first insulating member 4, the cover plate 3 and the second insulating member 5.

During specific assembly, the first insulating part 4, the cover plate 3 and the second insulating part 5 sequentially penetrate through the pole 11, so that the battery can be assembled, and the operation is simple and convenient.

The second insulating member 5 includes a horizontal portion 51 and a vertical portion 52, the horizontal portion 51 has a disk shape having a diameter matching the diameter of the battery body 1, the horizontal portion 51 is located between the upper end surface of the lid plate 3 and the lower end surface of the folded edge 21, and the horizontal portion 51 can separate the upper end surface of the lid plate 3 from the lower end surface of the folded edge 21 to insulate them. The vertical portion 52 is a hollow column, the inner diameter of the vertical portion is matched with the diameter of the pole 11, the vertical portion 52 is sleeved on the periphery of the pole 11, the peripheral surface and the folded edge 21 of the pole 11 can be separated by the vertical portion 52, the pole 11 is insulated from the folded edge 21, and therefore the insulation effect of the battery is guaranteed.

As a preferred embodiment, the upper end of the vertical portion 52 is flush with the upper end of the pole 11, so that it is possible to ensure that the pole 11 is easily contacted with an external contact, and to facilitate the electrical connection of the battery with the outside while ensuring the insulation performance. It will be understood that in other possible embodiments, the height of the vertical portion 52 may be less than the height of the pole 11, just to ensure insulation of the pole 11 from the folded edge 21.

In a preferred embodiment, the upper end surface and the lower end surface of the horizontal portion 51 are in contact with the folded edge 21 and the lid plate 3, respectively, so that the insulating performance can be ensured, and the positions of the first insulating member 4, the lid plate 3, and the second insulating member 5 can be ensured, thereby further stabilizing the structure of the battery.

In a preferred embodiment, the height of the peripheral wall 42 is matched with the height of the cover plate 3, so that the lower end surface of the second insulating member 5 can be ensured to be in contact with the cover plate 3, and the structure is more stable.

It should be noted that the first insulating member 4 and the second insulating member 5 are made of insulating materials, such as existing insulating glue, to ensure the insulating performance of the battery.

The application also provides a cylindrical battery, which comprises the cylindrical battery shell structure.

In the description of the present invention, it is to be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate 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 the present invention, "a plurality" means two or more unless specifically limited otherwise.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

1. The utility model provides a cylinder battery case structure, its characterized in that includes battery main part, casing, apron, first insulating part, and second insulating part, battery main part locates in the casing, first insulating part locates battery main part's upper end, the periphery of first insulating part is formed with the perisporium that extends along vertical direction, the apron is located the inboard of perisporium, the upper end of casing is inwards buckled and is formed the hem, the second insulating part locate the apron with between the hem.

2. The cylindrical battery case structure according to claim 1, wherein a convex edge is formed on the inner peripheral side of the peripheral wall, and a positioning groove is provided on the peripheral surface of the lid plate, the convex edge being insertable into the positioning groove to fix the lid plate.

3. The cylindrical battery case structure according to claim 1, wherein a terminal is disposed at an upper end of the battery main body, the first insulating member, the cover plate, and the second insulating member are provided with through holes corresponding to the terminal, and the terminal is sequentially inserted into the first insulating member, the cover plate, and the second insulating member.

4. The cylindrical battery case structure according to claim 3, wherein the second insulating member includes a horizontal portion and a vertical portion, the horizontal portion is located between an upper end surface of the cover plate and a lower end surface of the flange, and the vertical portion is fitted around the outer periphery of the post.

5. The cylindrical battery case structure according to claim 4, wherein the upper end of the vertical portion is flush with the upper end of the post.

6. The cylindrical battery case structure according to claim 4, wherein an upper end surface and a lower end surface of the horizontal portion abut against the flange and the lid plate, respectively.

7. The cylindrical battery case structure according to claim 1, wherein the height of the circumferential wall matches the height of the cap plate.

8. The cylindrical battery case structure according to claim 1, wherein the first insulating member and the second insulating member are each made of an insulating material.

9. A cylindrical battery comprising the cylindrical battery casing structure according to any one of claims 1 to 8.