CN219067007U

CN219067007U - Interior riveting top cap and battery

Info

Publication number: CN219067007U
Application number: CN202223458889.7U
Authority: CN
Inventors: 张增高; 孙成浩
Original assignee: Chuneng New Energy Co Ltd
Current assignee: Chuneng New Energy Co Ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-05-23
Anticipated expiration: 2032-12-23

Abstract

The utility model discloses an inner riveting top cover and a battery. The novel solar cell comprises a top cover plate, a pole and a sealing ring, wherein a pole hole is formed in the top cover plate, a through hole is formed in the sealing ring, the sealing ring is arranged between the top cover plate and the pole, the pole is an I-shaped inner riveting pole, one end of the pole is located outside the top cover plate, and the other end of the pole penetrates through the through hole and the pole hole to be located inside the top cover plate. The internal riveting type pole reduces the height of the exposed pole, thereby reducing the total height of the battery and improving the energy density.

Description

Interior riveting top cap and battery

Technical Field

The utility model belongs to the technical field of power batteries, and particularly relates to an inner riveting top cover and a battery.

Background

The power battery is the power that provides the power source for the instrument promptly, multi-finger is the battery that provides power for electric automobile, electric train, electric bicycle, golf cart, and it has multiple structures such as lead acid battery, lithium ion battery, usually contains shell, electric core and top cap, and the electric core is located the shell and is packaged by the top cap, and the top cap includes the top cap piece and sets up the utmost point post on the top cap piece, and the utmost point post is used for connecting electric core and external consumer, and top cap piece and utmost point post are metal material in order to guarantee structural strength generally, therefore need accomplish insulatingly between top cap piece and the utmost point post to also need seal in order to prevent leakage between top cap piece and the utmost point post.

The existing top cover sheet and the pole are usually manufactured and assembled by riveting, friction welding, snap spring connection and other modes, but the modes have complex structures, higher requirements on equipment and higher cost; and fix through riveting or jump ring, make not hard up between each part easily, cause sealed not tight.

The conventional top cover also has a structure formed by a top cover plate and an outer riveting polar column, but the whole width and the length of the polar column are larger due to the large volume of the riveting block, so that the problems of overhigh polar column height and the like occur, the total height of the battery cell is increased, and the energy density of the battery cell is influenced.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides an inner riveting top cover and a battery, which can reduce the height of an exposed pole, thereby reducing the total height of the battery and improving the energy density.

The technical scheme adopted by the utility model is as follows: the utility model provides an interior riveting top cap, includes top cap piece, utmost point post and sealing washer, be equipped with the utmost point post hole on the top cap piece, be equipped with the via hole on the sealing washer, the sealing washer sets up between top cap piece and utmost point post, the utmost point post is the interior riveting utmost point post of I shape, utmost point post one end is located the top cap piece outside, the utmost point post other end passes via hole and utmost point post hole are located the top cap piece inboard.

Further, grooves are formed in the peripheral edges of the outer sides of the top cover pieces, located in the pole holes, and the grooves are matched with the sealing ring in a concave mode.

Further, the pole comprises an outer plate, an inner plate and a connecting rod which are integrally connected, and the outer plate, the connecting rod and the inner plate are sequentially connected to form an I-shaped structure.

Further, the sealing ring comprises a first sealing ring and a second sealing ring, the first sealing ring is arranged between the inner side of one end of the pole and the outer side of the top cover sheet, and one end of the second sealing ring penetrates through the pole hole, and the other end of the second sealing ring is positioned between the inner side of the other end of the pole and the inner side of the top cover sheet.

Further, the first sealing ring comprises an annular part and a first limiting part positioned at one end of the annular part, a through hole is formed in the center of the first limiting part, the inner side face of the annular part is attached to the side wall of one end of the pole, one side of the first limiting part is attached to the inner side of one end of the pole, and the other side of the first limiting part is attached to the outer side of the top cover piece.

Further, the second sealing ring comprises a tubular part and a second limiting part positioned at one end of the tubular part, the inner wall of the tubular part is attached to the central side wall of the pole, the outer wall of the tubular part is attached to the inner wall of the pole hole, and one side of the second limiting part is attached to the inner side of the top cover sheet and the other side of the second limiting part is attached to the inner side of the other end of the pole.

Still further, still include insulating stop frame, the stop frame is arranged in the inboard of top cover piece, is equipped with the via hole that supplies the utmost point post to pass on the stop frame.

A battery comprising a battery top cap, the battery top cap being an in-rivet top cap as described above.

The beneficial effects of the utility model are as follows:

the H-shaped inner riveting polar column integrally penetrates through the top cover plate, so that the friction welding process and the riveting pressing block of the original riveting polar column are eliminated, parts required by sealing and assembling the polar column and the top cover can be reduced, and the product cost is reduced; and the height of the exposed polar post is reduced by the internal riveting type polar post, so that the total height of the battery is reduced, and the energy density is improved.

The inner riveting pole is integrally formed by adopting the same material, has low internal resistance, can reduce current loss and prolongs the service life of the battery.

According to the utility model, the top cover plate is connected with the inner riveting polar column through the two sealing rings, so that the connection stability is ensured, and the sealing performance of the top cover is improved.

Drawings

Fig. 1 is a schematic diagram of an explosive structure according to the present utility model.

Fig. 2 is a cross-sectional view of the present utility model.

In the figure: 1-a top cover sheet; 1.1-grooves; 1.2-outside; 1.3-inboard; 2-pole holes; 3-pole; 3.1-outer plates; 3.2-inner plate; 3.3-connecting rods; 4-a first sealing ring; 4.1-a ring; 4.2-a first limiting part; 5-a second sealing ring; 5.1-a tubular portion; 5.2-a second limiting part; 6-a stop rack; 7-via holes.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1 and 2, the utility model provides an inner riveting top cover, which comprises a top cover sheet 1, pole columns 3 and sealing rings, wherein the top cover sheet 1 is provided with pole column holes 2, the two pole columns 3 are respectively provided with a positive pole column and a negative pole column, the two pole columns are matched with the two pole column holes on the top cover sheet 1, the two pole columns and the corresponding sealing rings have the same structure, and only the structure of the installation position of one pole column is shown in the figure. Be equipped with via hole 7 on the sealing washer, the sealing washer sets up between top cap piece 1 and utmost point post 3, utmost point post 3 is interior riveting utmost point post of I shape, utmost point post 3 one end (i.e. planking 3.1) is located top cap piece 1 outside 1.2 (i.e. installs the battery on the back and keep away from the one side of electric core), utmost point post 3 other end (i.e. inner panel 3.2) pass via hole 7 and utmost point post hole 2 are located top cap piece 1 inboard 1.3 (i.e. install the battery on the back and be close to the one side of electric core).

The H-shaped inner riveting polar column integrally penetrates through the top cover plate 1, so that the friction welding process and the riveting pressing block of the original riveting polar column are eliminated, and the product cost can be effectively reduced; and the height of the exposed polar post is reduced by the internal riveting type polar post, so that the total height of the battery is reduced, and the energy density is improved.

In the scheme, the outer side of the top cover sheet 1 is provided with grooves 1.1 at the peripheral edge of the pole hole 3, and the grooves 1.1 are in concave fit with the first sealing ring 4. Through set up the recess on top cap piece 1, match with first sealing washer, not only can improve sealed effect, also can guarantee assembly accuracy and reliability.

In the above scheme, the pole 3 comprises an outer plate 3.1, an inner plate 3.2 and a connecting rod 3.3 which are integrally connected, and the outer plate 3.1, the connecting rod 3.3 and the inner plate 3.2 are sequentially connected to form an I-shaped structure. The internal riveting pole with the I-shaped structure simplifies the structural form and the assembly process of the pole and reduces the production cost.

In the above scheme, the sealing ring comprises a first sealing ring 4 and a second sealing ring 5, the first sealing ring 4 is arranged between the inner side of one end (namely, the outer plate 3.1) of the pole 3 and the outer side 1.2 of the top cover plate 1, and one end of the second sealing ring 5 passes through the pole hole 2, and the other end of the second sealing ring is positioned between the inner side of the other end of the pole 3 and the inner side 1.3 of the top cover plate 1. The top cover plate 1 is connected with the inner riveting polar column through two sealing rings, so that the sealing performance of the top cover is improved while the connection stability is ensured.

In the above-mentioned scheme, the first sealing ring 4 includes the annular portion 4.1 and is located the first spacing portion 4.2 of annular portion 4.1 one end, and first spacing portion 4.2 center sets up the via hole 7, and the lateral wall of annular portion 4.1 medial surface laminating utmost point post 3 one end (i.e. planking 3.1 lateral wall), the inboard of utmost point post 3 one end (i.e. planking 3.1) is laminated to one side of first spacing portion 4.2, and the opposite side laminating top cap piece 1 outside of first spacing portion 4.2.

In the above-mentioned scheme, the second sealing washer 5 includes tubular part 5.1 and is located the second spacing portion 5.2 of tubular part one end, the center (i.e. connecting rod 3.3) lateral wall of the inner wall laminating utmost point post 3 of tubular part 5.1, the outer wall laminating utmost point post hole 2 inner wall of tubular part 5.1, the inboard 1.3 of the inboard laminating top cap piece 1 of one side of second spacing portion 5.2, the inboard of the opposite side laminating utmost point post 3 other end (i.e. inner panel 3.2).

In the scheme, the sealing device further comprises an insulating stop frame 6, the stop frame 6 is arranged on the inner side of the top cover plate 1, a through hole 7 for the pole 3 to pass through is formed in the stop frame 6, and the inner side of the through hole of the stop frame 6 is in limit fit with the second sealing ring 5.

The internal riveting process adopted by the internal riveting top cover is characterized in that when the internal riveting top cover is assembled, the internal riveting top cover is assembled according to the structure shown in the figure, after the internal riveting top cover is assembled, the lower part of the riveting pole post is riveted to form the switching sheet area, and the assembled internal riveting top cover is simple in structure and high in reliability.

The utility model also provides a battery, which comprises a battery top cover, wherein the battery top cover is the inner riveting top cover.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. What is not described in detail in this specification is prior art known to those skilled in the art.

Claims

1. An interior riveting top cap, its characterized in that: including top cap piece (1), utmost point post (3) and sealing washer, be equipped with utmost point post hole (2) on top cap piece (1), be equipped with via hole (7) on the sealing washer, the sealing washer sets up between top cap piece (1) and utmost point post, utmost point post (3) are the interior utmost point post of riveting of I shape, utmost point post (3) one end is located top cap piece (1) outside, utmost point post (3) other end passes via hole (7) and utmost point post hole (2) are located top cap piece (1) inboard.

2. The in-rivet header as set forth in claim 1, wherein: the top cover piece (1) is provided with grooves (1.1) on the outer side of the top cover piece (1) and positioned at the periphery of the pole hole (2), and the grooves (1.1) are matched with the sealing ring in a concave mode.

3. The in-rivet header as set forth in claim 1, wherein: the pole (3) comprises an outer plate (3.1), an inner plate (3.2) and a connecting rod (3.3) which are integrally connected, and the outer plate (3.1), the connecting rod (3.3) and the inner plate (3.2) are sequentially connected to form an I-shaped structure.

4. The in-rivet header as set forth in claim 1, wherein: the sealing ring comprises a first sealing ring (4) and a second sealing ring (5), wherein the first sealing ring (4) is arranged between the inner side of one end of the pole and the outer side of the top cover sheet (1), and one end of the second sealing ring (5) penetrates through the pole hole (2) and the other end of the second sealing ring is positioned between the inner side of the other end of the pole (3) and the inner side of the top cover sheet (1).

5. The in-rivet header as set forth in claim 4 wherein: the first sealing ring (4) comprises an annular part (4.1) and a first limiting part (4.2) located at one end of the annular part, the inner side surface of the annular part (4.1) is attached to the side wall of one end of the pole, a through hole (7) is formed in the center of the first limiting part (4.2), one side of the first limiting part (4.2) is attached to the inner side of one end of the pole (3), and the other side of the first limiting part (4.2) is attached to the outer side of the top cover plate (1).

6. The in-rivet header as set forth in claim 4 wherein: the second sealing ring (5) comprises a tubular part (5.1) and a second limiting part (5.2) located at one end of the tubular part, the inner wall of the tubular part (5.1) is attached to the central side wall of the pole (3), the outer wall of the tubular part (5.1) is attached to the inner wall of the pole hole (2), and one side of the second limiting part (5.2) is attached to the inner side of the top cover plate (1) and the other side of the second limiting part is attached to the inner side of the other end of the pole (3).

7. The in-rivet header as set forth in claim 1, wherein: the insulation structure further comprises an insulation stop frame (6), wherein the stop frame (6) is arranged on the inner side of the top cover plate (1), and a through hole (7) for the pole (3) to pass through is formed in the stop frame (6).

8. A battery, comprising a battery top cover, characterized in that: the battery top cover is the in-rivet top cover as defined in any one of claims 1-7.