CN218827462U

CN218827462U - No top cap battery appearance structure and no top cap battery cell

Info

Publication number: CN218827462U
Application number: CN202222627289.2U
Authority: CN
Inventors: 王有生; 李华; 覃太平
Original assignee: Changzhou Red Fairy Precision Technology Co Ltd
Current assignee: Changzhou Red Fairy Precision Technology Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-04-07
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to the technical field of batteries, and discloses a top-cap-free battery appearance structure and a top-cap-free single battery, wherein the top-cap-free battery appearance structure comprises an annular plate, the annular plate is surrounded to form a surrounding area, two sides of the annular plate are respectively provided with a side opening, two side openings are covered with side panels, and the side panels close the side openings; the annular plate is provided with rings at two sides respectivelyThe plate edge, the periphery of the side panel has panel edges, the panel edge and the edge of the annular plate are in step-shaped lap joint and fixed to form a step lap joint structure; compared with the prior art _， The utility model provides a no top cap battery appearance structure is step form overlap joint between the annular plate edge of annular plate and the panel edge of side board fixed, forms step overlap joint structure, and the connection between side board and the annular plate is more firm to the leakproofness is also high.

Description

No top cap battery appearance structure and no top cap battery cell

Technical Field

The patent of the utility model relates to a technical field of battery particularly, relates to no top cap battery appearance structure and no top cap battery cell.

Background

With the continuous development of power batteries and energy storage technologies, batteries have been widely used due to their excellent characteristics such as high capacity. The battery comprises a shell, a top cover plate, an electric core and the like, wherein the electric core is an electricity storage element of the battery and is arranged inside the shell, the upper end of the shell is provided with an upper end opening, the top cover plate is sealed at the opening at the upper end of the shell, the top cover plate is provided with a pole post, and the battery is electrically connected with the outside through the pole post.

At present, the energy of battery is lower, and it is more to need assemble, and the security performance is low, and in order to improve the energy of battery, no top cap battery cell has now been released, and it includes annular plate and two side boards, and two side board closing caps are in the both sides of annular plate, and the annular plate encloses with two side boards and closes to be formed with the appearance chamber, directly arranges electric core in holding the chamber.

In the prior art, after the side panel and the annular plate are installed, welding and fixing are needed, but the side panel and the annular plate are only in edge butt joint, so that the finally formed structure of the appearance structure of the top-cap-free battery is unstable, and the sealing performance is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a no top cap battery appearance structure aims at solving prior art, and no top cap battery appearance structure has the poor problem of leakproofness.

The utility model discloses a realize like this, no top cap battery appearance structure, including the annular plate of encircleing form, the annular plate surrounds the surrounding area that is formed with the holding electric core, the both sides of annular plate have the side opening respectively, two the side opening is covered with the side board, the side board seals the side opening;

the two sides of the annular plate are respectively provided with an annular plate edge, the annular plate edges extend along the surrounding direction of the annular plate, the periphery of the side panel is provided with a panel edge, and the panel edge is arranged along the periphery of the side panel in a surrounding manner; the edge of the panel and the edge of the ring plate are in step-shaped lap joint and fixed to form a step lap joint structure.

Furthermore, step overlap joint structure includes a plurality of overlap joint positions, and is adjacent be the bending arrangement between the overlap joint position.

Furthermore, the adjacent lap joints are arranged in a vertical bending mode.

Further, in the lap joint position, the face between the edge of the panel and the edge of the annular plate is in fit abutment.

Further, the panel edge is recessed outwards to form a first recessed groove which is annularly arranged along the circumferential direction of the panel edge; the edge of the ring plate is embedded into the first concave groove, and the edge of the ring plate and the first concave groove directly form the step lap joint structure.

Further, the outer side of the first concave groove penetrates through the periphery of the edge of the panel.

Further, a first bottom surface is formed at the bottom of the first concave groove, a first inner side surface is formed at the inner side of the first concave groove, and the outer end surface of the edge of the annular plate abuts against the first bottom surface of the first concave groove to form the lap joint position; the inner side wall of the edge of the annular plate abuts against the first inner side face of the first concave groove to form the lap joint position.

Further, the panel edge extends towards the ring plate edge to form a lap joint ring, and the lap joint ring is arranged around the periphery of the panel edge; the periphery of the edge of the ring plate is recessed inwards to form a second recessed groove which is circumferentially arranged along the circumferential direction of the edge of the ring plate; the lapping ring is embedded in the second concave groove to form the step lapping structure.

Further, a second bottom surface is formed at the bottom of the second concave groove, and a second inner side surface is formed at the inner side of the second concave groove; the outer end face of the lapping ring abuts against the second bottom face of the second concave groove to form the lapping position, and the inner side wall of the lapping ring abuts against the second inner side face of the second concave groove to form the lapping position.

Compared with the prior art, the utility model provides a no top cap battery appearance structure is step form overlap joint between the annular plate edge of annular plate and the panel edge of side board fixed, forms step overlap joint structure, and like this, the connection between side board and the annular plate is more firm to the leakproofness is also high.

The utility model also provides a no top cap battery cell, including foretell no top cap battery appearance structure.

Compared with the prior art, the utility model provides a no top cap battery cell, because the structure of no top cap battery appearance structure is firm, and the leakproofness is good, no top cap battery cell's performance is also good, long service life.

Drawings

Fig. 1 is a schematic perspective view illustrating the appearance structure of a cap-less battery according to the present invention;

FIG. 2 is a partial schematic view of the mating of the panel edge with the ring plate edge provided by the present invention;

fig. 3 is a partial schematic view of a panel edge provided by the present invention;

FIG. 4 is a partial schematic view of the mating of the panel edge with the ring plate edge provided by the present invention;

fig. 5 is a partial schematic view of a panel edge provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1-5, the preferred embodiment of the present invention is shown.

The shape structure of the battery without the top cover comprises a surrounding annular plate 200, wherein the annular plate 200 surrounds an enclosing area 201 for accommodating a battery core, two sides of the annular plate 200 are respectively provided with a side opening, the two side openings are covered with side panels 100 in a sealing manner, and the side openings are closed by the side panels 100; thus, the enclosed area is closed by the two side panels 100.

The two sides of the annular plate 200 are respectively provided with an annular plate edge 202, the annular plate edges 202 extend along the surrounding direction of the annular plate 200, the periphery of the side panel 100 is provided with a panel edge 102, and the panel edge 102 surrounds along the periphery of the side panel 100; the panel edge 102 and the ring plate edge 202 are fixed in a step-shaped lap joint manner, so that a step-shaped lap joint structure is formed.

In the above-mentioned structure of the battery without top cover, the ring plate edge 202 of the ring plate 200 and the panel edge 102 of the side panel 100 are fixed in a step-like lap joint to form a step-like lap joint structure, so that the connection between the side panel 100 and the ring plate 200 is more stable and the sealing performance is high.

The ring plate edge 202 and the panel edge 102 are fixed by welding or riveting, such as through welding or the like.

In this embodiment, step overlap joint structure includes a plurality of overlap joint positions, is the bending arrangement between the adjacent overlap joint position. In this way, by the plurality of overlapping positions arranged by bending, a more stable connection between the ring plate 200 and the side panel 100 can be ensured, and the sealing performance is also good.

The adjacent lap joint positions are vertically bent, so that the structural arrangement is simpler and the assembly is convenient.

In the overlap joint position, the face between panel edge 102 and ring plate edge 202 is the laminating butt, and the face laminating overlap joint can make the overlap joint area increase, and the overlap joint is more firm, and the leakproofness is good.

Referring to fig. 2-3, the panel edge 102 is outwardly recessed to form a first recessed groove 1021, the first recessed groove 1021 being annularly arranged along a circumferential direction of the panel edge 102; the ring plate edge 202 is embedded in the first concave groove 1021, and the ring plate edge 202 and the first concave groove 1021 directly form the step overlapping structure.

The outer side of the first recessed groove 1021 runs through the periphery of the panel edge 102, facilitating the fit between the ring plate edge 202 and the panel edge 102.

The bottom of the first concave groove 1021 forms a first bottom surface 1022, the inner side of the first concave groove 1021 forms a first inner side surface 1023, and the outer end surface of the ring plate edge 202 abuts against the first bottom surface 1022 of the first concave groove 1021 to form a lap joint; the inner sidewall of the rim 202 abuts against the inner side 1023 of the first recess 1021 to form a lap joint.

4-5, the panel edge 102 extends toward the ring plate edge 202 forming a lap ring circumferentially disposed along the perimeter of the panel edge 102; the outer periphery of the ring plate edge 202 is recessed inwards to form a second recessed groove 2021, and the second recessed groove 2021 is circumferentially arranged along the circumference of the ring plate edge 202; the lap ring is embedded in the second concave groove 2021, forming the step lap structure.

The bottom of the second concave groove 2021 forms a second bottom surface 2022, and the inner side of the second concave groove 2021 forms a second inner side surface 2023; the outer end surface of the lap ring abuts against the second bottom surface 2022 of the second concave groove 2021 to form a lap position, and the inner side wall of the lap ring abuts against the second inner side surface 2023 of the second concave groove 2021 to form a lap position.

The embodiment also provides a single battery without the top cover, which comprises the appearance structure of the battery without the top cover, and the appearance structure of the battery without the top cover is stable in structure, good in sealing performance, good in performance and long in service life.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The appearance structure of the battery without the top cover is characterized by comprising a surrounding annular plate, wherein the annular plate surrounds a surrounding area for accommodating a battery cell, two sides of the annular plate are respectively provided with a side opening, two side openings are covered with a side panel, and the side panel seals the side openings;

the two sides of the annular plate are respectively provided with an annular plate edge, the annular plate edges extend along the surrounding direction of the annular plate, the periphery of the side panel is provided with a panel edge, and the panel edge is arranged around the periphery of the side panel; the edge of the panel and the edge of the ring plate are in step-shaped lap joint and fixed to form a step lap joint structure.

2. The cell shape structure without a top cover as defined in claim 1, wherein said step-like overlapping structure comprises a plurality of overlapping positions, and adjacent overlapping positions are arranged in a bending manner.

3. The cell form factor of claim 2, wherein adjacent overlapping locations are vertically bent.

4. The cell cover-less peripheral structure of claim 2, wherein in said overlapping position, said panel edge is in face-to-face abutting engagement with said annular plate edge.

5. The cap-less battery form factor of claim 2, wherein the panel edge is recessed outward forming a first recessed groove, the first recessed groove being annularly arranged along a circumference of the panel edge; the edge of the ring plate is embedded into the first concave groove, and the step lap joint structure is directly formed by the edge of the ring plate and the first concave groove.

6. The cap-less battery form factor of claim 5, wherein the outer side of the first recessed groove extends through the outer periphery of the panel edge.

7. The cap-less battery form factor of claim 5, wherein the bottom of the first recessed groove forms a first bottom surface, the inside of the first recessed groove forms a first inside surface, and the outer end surface of the edge of the ring plate abuts against the first bottom surface of the first recessed groove to form the overlapping position; the inner side wall of the edge of the annular plate abuts against the first inner side face of the first concave groove to form the lap joint position.

8. The cell cover-less peripheral structure of claim 2, wherein the panel edge extends toward the ring plate edge to form a snap ring, the snap ring being circumferentially disposed along the panel edge; the periphery of the edge of the ring plate is recessed inwards to form a second recessed groove which is circumferentially arranged along the circumferential direction of the edge of the ring plate; the lapping ring is embedded in the second concave groove to form the step lapping structure.

9. The cap-less battery form factor of claim 8, wherein the bottom of the second recessed channel forms a second bottom surface and the inside of the second recessed channel forms a second inside surface; the outer end face of the lapping ring abuts against the second bottom face of the second concave groove to form the lapping position, and the inner side wall of the lapping ring abuts against the second inner side face of the second concave groove to form the lapping position.

10. The cap-less cell, comprising the cap-less cell casing structure according to any one of claims 1 to 9.