CN218632254U

CN218632254U - Power battery and cover plate structure thereof

Info

Publication number: CN218632254U
Application number: CN202222814061.4U
Authority: CN
Inventors: 陈圣; 赵伟; 陈洪亮; 周斌
Original assignee: Chizhou Junz Technology Co ltd
Current assignee: Chizhou Junz Technology Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-03-14
Anticipated expiration: 2032-10-25

Abstract

The utility model discloses a power battery and a cover plate structure thereof, which comprises a cover plate body, wherein the cover plate body is provided with a pole mounting hole in a penetrating way, and a pole component is arranged in the pole mounting hole; wherein, the lower tip of utmost point post subassembly is equipped with connecting portion, and connecting portion protrusion sets up in the lower terminal surface of apron body. During installation, the pole assembly is installed in the pole installation hole, so that the connecting part extends out of the lower port of the pole installation hole to protrude out of the lower end face of the cover plate body, and the connecting sheet is attached to the connecting part for welding; the cover plate structure can weld the connecting sheet through the convex connecting part, is convenient for welding work, and the connecting sheet is flat, so that the die sinking work of the connecting sheet is reduced.

Description

Power battery and cover plate structure thereof

Technical Field

The utility model relates to a power battery technical field especially relates to a power battery and apron structure thereof.

Background

Hybrid electric vehicles and pure electric vehicles are also gradually accepted by manufacturers and consumers as representatives of new energy vehicles. The power battery is used as a main power source of the new energy automobile and becomes one of the key parts of the electric automobile.

The power battery in the prior art comprises a cover plate, wherein a pole mounting hole is formed in the cover plate, a pole body is mounted in the pole mounting hole, and the pole body is welded on a pole lug of a battery cell through a connecting sheet, wherein a protruding part is arranged on one end surface of the connecting sheet and extends into the pole mounting hole to be welded with a pole; the defect of this mode lies in that the connection piece is protruding structure, and the die sinking is comparatively complicated, and protruding position is located utmost point post mounting hole, and the weldment work of being not convenient for.

In view of this, it is necessary to improve the structure of the power battery in the prior art to solve the technical problem that the battery post is inconvenient to weld.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a power battery and apron structure thereof solves above technical problem.

To achieve the purpose, the utility model adopts the following technical proposal:

a cover plate structure comprises a cover plate body, wherein a pole mounting hole is penetratively formed in the cover plate body, and a pole assembly is arranged in the pole mounting hole;

the lower end part of the pole component is provided with a connecting part which protrudes out of the lower end face of the cover plate body.

Optionally, the pole assembly includes a pole body and an upper plastic ring sleeved on the upper end of the pole body;

the connecting part is arranged at the lower end part of the pole column body, and the upper plastic ring is fixedly connected to the cover plate body.

Optionally, a clamping part is arranged on the inner wall of the pole mounting hole;

the outer periphery of the upper plastic ring is provided with a connecting groove matched with the clamping portion, and the clamping portion is clamped in the connecting groove.

Optionally, a limit groove is formed in a preset position on the inner wall of the upper plastic ring;

the limiting ring is arranged on the outer wall of the pole cylinder body and clamped in the limiting groove.

Optionally, the pole assembly further comprises a welding aluminum ring, and the welding aluminum ring is fixedly connected with the upper plastic ring;

a gap space is arranged between the welding aluminum ring and the pole column body, and a sealing ring is arranged in the gap space.

Optionally, the sealing ring is a regular polygonal ring structure, and the outer side wall of the sealing ring is abutted to the upper plastic ring.

Optionally, the lower end surface of the cover plate body is provided with a mounting groove surrounding the pole mounting hole, and the welding aluminum ring is fixedly mounted in the mounting groove.

Optionally, the connecting portion and the pole body are integrally arranged.

The utility model also provides a power battery, including the connection piece with as above apron structure, the lower terminal surface of connecting portion with the connection piece welding.

Compared with the prior art, the utility model discloses following beneficial effect has: during installation, the pole assembly is installed in the pole installation hole, so that the connecting part extends out of the lower port of the pole installation hole to protrude out of the lower end face of the cover plate body, and the connecting sheet is attached to the connecting part for welding; the cover plate structure can weld the connecting sheet through the convex connecting part, is convenient for welding work, and the connecting sheet is flat, so that the die sinking work of the connecting sheet is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.

FIG. 1 is a schematic view of the overall structure of the present cover plate structure;

FIG. 2 is a schematic bottom view of the cover plate structure;

FIG. 3 is an exploded view of the present cover plate structure;

FIG. 4 is a schematic cross-sectional view of the present cover plate structure;

fig. 5 is a right side view of the cross-sectional structure of the present cover plate structure.

Illustration of the drawings: the cover plate body 3, the pole mounting hole 31, the pole assembly 2, the connecting part 21, the pole body 22, the upper plastic ring 23, the clamping part 32, the connecting groove 231, the limiting groove 232, the limiting ring 24, the welding aluminum ring 25, the sealing ring 26 and the mounting groove 33.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those 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. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The first embodiment is as follows:

the utility model provides a cover plate structure, which comprises a cover plate body 3, wherein the cover plate body 3 is provided with a pole mounting hole 31 in a penetrating way, and a pole component 2 is arranged in the pole mounting hole 31;

the lower end part of the pole assembly 2 is provided with a connecting part 21, and the connecting part 21 protrudes out of the lower end face of the cover plate body 3. The utility model discloses a theory of operation does: during installation, the pole assembly 2 is installed in the pole installation hole 31, so that the connecting part 21 extends out of the lower port of the pole installation hole 31 to protrude out of the lower end face of the cover plate body 3, and the connecting sheet is attached to the connecting part 21 for welding; compared with the power battery cover plate in the prior art, the cover plate structure can weld the connecting sheet through the convex connecting part 21, so that the welding work is convenient, and the connecting sheet is flat, so that the die sinking work of the connecting sheet is reduced.

In the embodiment, the pole assembly 2 includes a pole cylinder 22 and an upper plastic ring 23 sleeved on the upper end of the pole cylinder 22;

the connecting part 21 is arranged at the lower end part of the pole column 22, and the upper plastic ring 23 is fixedly connected to the cover plate body 3; wherein the connecting portion 21 and the pole body 22 are integrally provided.

Wherein, the connection mode of going up plastic ring 23 and apron body 3 can be for hot melt welding or bonding, connects utmost point post subassembly 2 on apron body 3 through going up plastic ring 23, goes up plastic ring 23 simultaneously and plays the insulating effect to utmost point cylinder 22.

Further, a clamping portion 32 is arranged on the inner wall of the pole mounting hole 31;

go up on plastic ring 23's outer peripheral edge on seted up with joint portion 32 assorted connecting groove 231, joint portion 32 joint in the connecting groove 231.

As shown in fig. 3, the clamping portion 32 is an arc-shaped bending ring, and the upper plastic ring 23 is clamped by the structure, so that the bending ring cannot move relative to the clamping groove, the situation that the upper plastic ring 23 falls off can be effectively avoided, and the connection stability is improved.

Further, a limit groove 232 is formed in a preset position on the inner wall of the upper plastic ring 23;

the outer wall of the pole column 22 is provided with a limiting ring 24, and the limiting ring 24 is clamped in the limiting groove 232.

As shown in fig. 5, the limiting ring 24 is used for fixing the pole cylinder 22, and meanwhile, the pole cylinder 22 and the upper plastic ring 23 are prevented from relative displacement, so that the stability of the battery cover plate structure is improved.

In this embodiment, the pole assembly 2 further includes a welding aluminum ring 25, and the welding aluminum ring 25 is fixedly connected to the upper plastic ring 23;

a gap space is arranged between the welding aluminum ring 25 and the pole column body 22, and a sealing ring 26 is arranged in the gap space. The sealing ring 26 serves to seal the battery assembly, prevent the electrolyte in the battery from leaking, and improve the airtightness of the electrode assembly 2.

As a preferable scheme of this embodiment, the sealing ring 26 is a regular polygonal ring structure, and an outer side wall of the sealing ring 26 abuts against the upper plastic ring 23.

Preferably, the upper plastic ring 23 is rectangular, the shape of the inner ring of the upper plastic ring 23 is matched with that of the sealing ring 26, the sealing ring 26 can be accommodated in the inner ring of the upper plastic ring 23, and the upper plastic ring 23 plays a role in limiting the sealing ring 26 to prevent the sealing ring 26 from moving;

meanwhile, the sealing ring 26 can be arranged in a regular shape, so that the die opening process of the sealing ring 26 is simplified, and the raw material cost is reduced.

In this embodiment, the lower end surface of the cover plate body 3 is provided with an installation groove 33 surrounding the pole installation hole 31, and the welding aluminum ring 25 is fixedly installed in the installation groove 33. Welding aluminium ring 25 and apron body 3 fixed connection further improve utmost point post subassembly 2 and apron body 3's stability of being connected.

Example two:

a power battery is characterized by comprising a connecting piece and a cover plate structure according to the first embodiment, wherein the lower end face of the connecting part 21 is welded with the connecting piece. The connecting sheet is arranged to be of a flat sheet structure.

It is easy to understand that, since the connecting portion 21 is disposed to protrude from the pole mounting hole 31, when the connecting sheet is mounted, a gap layer is formed between the connecting sheet and the cover plate body 3, and the gap layer can play a role of thermal insulation and insulation.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cover plate structure comprises a cover plate body, wherein a pole mounting hole is penetratingly formed in the cover plate body, and a pole assembly is arranged in the pole mounting hole;

2. The cover plate structure as claimed in claim 1, wherein the pole assembly includes a pole body, and an upper plastic ring sleeved on an upper end of the pole body;

3. The cover plate structure of claim 2, wherein the inner wall of the pole mounting hole is provided with a clamping part;

the outer peripheral edge of the upper plastic ring is provided with a connecting groove matched with the clamping portion, and the clamping portion is clamped in the connecting groove.

4. The cover plate structure of claim 2, wherein a predetermined position on the inner wall of the upper plastic ring is provided with a limiting groove;

the limiting ring is arranged on the outer wall of the pole column body and clamped in the limiting groove.

5. The cover plate structure of claim 2, wherein the pole assembly further comprises a welded aluminum ring, and the welded aluminum ring is fixedly connected with the upper plastic ring;

6. The cover plate structure according to claim 5, wherein the sealing ring is a ring structure of a regular polygonal body, and the outer side wall of the sealing ring abuts against the upper plastic ring.

7. The cover plate structure of claim 5, wherein the lower end surface of the cover plate body is provided with an installation groove surrounding the pole mounting hole, and the welding aluminum ring is fixedly installed in the installation groove.

8. The cover plate structure according to claim 2, wherein the connecting portion is provided integrally with the post body.

9. A power battery, characterized by comprising a connecting piece and the cover plate structure according to any one of claims 1 to 8, wherein the lower end surface of the connecting part is welded with the connecting piece.