CN216671776U

CN216671776U - Cover plate assembly and battery with same

Info

Publication number: CN216671776U
Application number: CN202122981615.5U
Authority: CN
Inventors: 娄佳训; 杨红新; 高顺航
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-03
Anticipated expiration: 2031-11-30

Abstract

The utility model provides a cover plate assembly and a battery with the same, wherein the cover plate assembly comprises: the cover plate main body is provided with a through hole; the pole structure is at least partially arranged in the through hole in a penetrating way; the insulating component is at least partially clamped between the cover plate main body and the pole structure; the pole structure is provided with an outer end face of the pole positioned on the outer side of the cover plate main body, and one end, far away from the cover plate main body, of the insulating component is provided with an insulating end face; the outer end face of the pole is flush with the insulating end face, or the outer end face of the pole is located on one side, away from the cover plate main body, of the insulating end face. The utility model solves the problem that the cover plate assembly in the prior art is easy to cause insulation failure.

Description

Cover plate assembly and battery with same

Technical Field

The utility model relates to the field of batteries, in particular to a cover plate assembly and a battery with the same.

Background

Nowadays, energy and environmental problems are increasingly highlighted, and in order to relieve energy and environmental stress, the development of new energy becomes a strategy. In the field of automobiles, new energy electric automobiles are developed to be a great development trend. The core power source of the electric automobile is a power battery, so the performance of the power battery is particularly important. The battery core is used as a storage unit of a common power battery and mainly comprises a cover plate, an aluminum shell and a pole group. Wherein, the cover plate structure is the most complicated, and the cover plate mainly includes aluminium sheet and utmost point post. The pole column part is insulated by separating the smooth aluminum sheet and the riveting aluminum block through insulating upper plastic.

The plastic card is gone up in the insulation at present apron structure's utmost point post position between riveting aluminium pig and the smooth aluminum sheet, and this structure can play insulating effect. However, in the actual process of manufacturing the riveted aluminum block and the polished aluminum sheet, aluminum wires are generated at the edge. The aluminum wire can conduct the riveting aluminum block and the polished aluminum sheet, so that insulation failure is caused.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a cover plate assembly and a battery with the same, so as to solve the problem that insulation of the cover plate assembly in the prior art is easy to lose efficacy.

In order to achieve the above object, according to one aspect of the present invention, there is provided a cap plate assembly including: the cover plate main body is provided with a through hole; the pole structure is at least partially arranged in the through hole in a penetrating way; the insulating component is at least partially clamped between the cover plate main body and the pole structure; the pole structure is provided with an outer end face of the pole positioned on the outer side of the cover plate main body, and one end, far away from the cover plate main body, of the insulating component is provided with an insulating end face; the outer end face of the pole is flush with the insulating end face, or the outer end face of the pole is located on one side, away from the cover plate main body, of the insulating end face.

Further, insulating part includes insulating flange portion, and insulating flange portion encircles utmost point post structure and sets up, and insulating terminal surface sets up on insulating flange portion.

Further, utmost point post structure includes first utmost point post portion, and first utmost point post portion is located the outside of apron main part, and insulating flange portion cover is established on first utmost point post portion.

Furthermore, the pole structure comprises a second pole part which is arranged on the through hole in a penetrating way and is connected with the first pole part; the insulating flange portion further includes an insulating main body portion interposed between the cap main body and the first pole portion.

Further, insulating part still includes the extension flange portion, and the inner wall end that extends the flange portion is connected with insulating flange portion, and the outer wall end orientation that extends the flange portion extends towards the direction of keeping away from utmost point post structure.

Further, the insulating flange portion and the extension flange portion are both annular, and the extension flange portion is disposed around the insulating flange portion.

Furthermore, one end of the extension flange part, which is far away from the insulating end face, is attached to the cover plate main body; and/or the extension flange portion is integrally formed with the insulating flange portion.

Further, the length of the extended flange portion is greater than the thickness of the insulating flange portion in a direction from the inner wall end to the outer wall end.

Furthermore, the outer wall surface of the cover plate main body is provided with a pole sinking groove, and at least part of the insulating part is positioned in the pole sinking groove.

According to another aspect of the present invention, a battery is provided, which includes a battery core and a cover plate assembly covering the battery core, where the cover plate assembly is the above-mentioned cover plate assembly.

By applying the technical scheme, the cover plate assembly comprises a cover plate main body, a pole post structure and an insulating part, wherein a through hole is formed in the cover plate main body, at least part of the pole post structure is arranged in the through hole in a penetrating mode, and at least part of the insulating part is clamped between the cover plate main body and the pole post structure; the pole structure is provided with an outer end face of the pole positioned on the outer side of the cover plate main body, and one end, far away from the cover plate main body, of the insulating component is provided with an insulating end face; the outer end face of the pole is flush with the insulating end face, or the outer end face of the pole is located on one side, away from the cover plate main body, of the insulating end face. Therefore, the insulating part can completely wrap the pole column structure, so that the insulating failure is avoided, and the problem of short circuit in the manufacturing process can be effectively avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 shows an overall structural schematic of an embodiment of a cover plate assembly according to the present invention;

FIG. 2 shows a top view of the cover plate assembly according to FIG. 1;

FIG. 3 shows a schematic structural view according to section A-A of the cover plate assembly in FIG. 2;

FIG. 4 shows an enlarged schematic view of the region B of the cover plate assembly according to FIG. 3;

FIG. 5 shows a schematic structural view of an insulating member of an embodiment of a cover plate assembly according to the present invention; and

fig. 6 shows a schematic structural view of the first pole section of an embodiment of a cover plate assembly according to the utility model.

Wherein the figures include the following reference numerals:

10. a cover plate main body; 101. perforating holes; 11. sinking a pole into a groove; 20. a pole structure; 200. the outer end face of the pole; 21. a first pole section; 210. the pole is penetrated through the hole; 211. riveting holes; 212. connecting holes; 22. a second pole section; 30. an insulating member; 300. an insulated end face; 31. an insulating flange portion; 310. an insulating main body portion; 32. the flange portion is extended.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a cover plate assembly, including: the cover plate comprises a cover plate main body 10, wherein a through hole 101 is formed in the cover plate main body 10; the pole structure 20, at least part of the pole structure 20 is arranged in the through hole 101 in a penetrating way; an insulating member 30, at least a part of the insulating member 30 being interposed between the cover plate body 10 and the post structure 20; the pole structure 20 has an outer end face 200 of the pole located outside the cover plate body 10, and the insulating component 30 has an end face 300 away from the cover plate body 10; the outer end face 200 of the post is flush with the insulating end face 300, or the outer end face 200 of the post is located on the side of the insulating end face 300 away from the cover plate body 10.

The cover plate assembly comprises a cover plate main body 10, a pole structure 20 and an insulating part 30, wherein the cover plate main body 10 is provided with a through hole 101, at least part of the pole structure 20 is arranged in the through hole 101 in a penetrating way, and at least part of the insulating part 30 is clamped between the cover plate main body 10 and the pole structure 20; the pole structure 20 has an outer end face 200 of the pole located outside the cover plate body 10, and the insulating component 30 has an end face 300 away from the cover plate body 10; the outer end face 200 of the post is flush with the insulating end face 300, or the outer end face 200 of the post is located on the side of the insulating end face 300 away from the cover plate body 10. Thus, the insulating member 30 can completely wrap the post structure 20, thereby avoiding insulation failure and effectively avoiding the problem of short circuit in the manufacturing process.

Specifically, the insulating member 30 includes an insulating flange portion 31, the insulating flange portion 31 is disposed around the pole structure 20, and the insulating end face 300 is disposed on the insulating flange portion 31.

In the embodiment of the present application, the insulating member 30 is made of a plastic material.

As shown in fig. 4, the pole structure 20 includes a first pole portion 21, the first pole portion 21 is located outside the cover plate body 10, and the insulating flange portion 31 is sleeved on the first pole portion 21.

Specifically, the pole structure 20 includes a second pole part 22, the second pole part 22 is disposed on the through hole 101 and connected with the first pole part 21; the insulating flange portion 31 further includes an insulating main body portion 310, and the insulating main body portion 310 is interposed between the cap main body 10 and the first pole portion 21.

In the embodiment of the present application, the cover main body 10 is a smooth aluminum plate, the first pole part 21 is a riveted aluminum block, and the first pole part 21 and the second pole part 22 are connected by riveting.

Specifically, the first pole part 21 has a pole through hole 210 for the second pole part 22 to pass through, at least a portion of the second pole part 22 passes through the pole through hole 210, the pole through hole 210 includes a riveting hole 211 for riveting with the second pole part 22 and a connection hole 212 for the second pole part 22 to pass through, wherein a diameter of the riveting hole 211 is larger than a diameter of the connection hole 212.

The connecting hole 212 is a counter bore, and the connecting hole 212 is butted with the through hole 101 of the cover plate main body 10.

Specifically, second pole portion 22 is including setting up the first pole post section outside the through hole 101 and the second pole post section of wearing to establish in the through hole 101, first pole post section and second pole post section interconnect, and first pole post section sets up in the inboard of apron main part 10, and the one end and the riveting of first pole post portion 21 of first pole post section are kept away from to the second pole post section.

In the embodiment of the present application, the insulating member 30 further includes an extension flange portion 32, an inner wall end of the extension flange portion 32 is connected with the insulating flange portion 31, and an outer wall end of the extension flange portion 32 extends toward a direction away from the pole structure 20.

The extending flange portion 32 and the insulating main body portion 310 extend in the same direction.

Specifically, the insulating flange portion 31 and the extension flange portion 32 are both annular, and the extension flange portion 32 is disposed around the insulating flange portion 31.

In the embodiment of the present invention, one end of the extended flange portion 32 away from the insulating end face 300 is attached to the cap main body 10; and/or the extension flange portion 32 is integrally formed with the insulation flange portion 31.

Specifically, the length of the extended flange portion 32 is greater than the thickness of the insulating flange portion 31 in the direction from the inner wall end to the outer wall end.

Specifically, the outer wall surface of the cover plate body 10 is provided with a pole sinking groove 11, and at least a part of the insulating member 30 is located in the pole sinking groove 11.

Preferably, the extended flange portion 32 completely covers the terminal sink 11, so that the electrolyte can be effectively prevented from entering, causing contamination, and the like.

The utility model also provides a battery, which comprises a battery core and a cover plate assembly covered on the battery core, wherein the cover plate assembly is the cover plate assembly.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

the cover plate assembly comprises a cover plate main body 10, a pole structure 20 and an insulating part 30, wherein the cover plate main body 10 is provided with a through hole 101, at least part of the pole structure 20 is arranged in the through hole 101 in a penetrating way, and at least part of the insulating part 30 is clamped between the cover plate main body 10 and the pole structure 20; the pole structure 20 has an outer end face 200 of the pole located outside the cover plate body 10, and the insulating component 30 has an end face 300 away from the cover plate body 10; the outer end face 200 of the post is flush with the insulating end face 300, or the outer end face 200 of the post is located on the side of the insulating end face 300 away from the cover plate body 10. Like this, insulating part 30 wraps up riveting aluminium pig (first pole portion 21) completely, separates riveting aluminium pig and smooth aluminum sheet (apron main part 10) completely, plays insulating effect, and this structure can avoid riveting aluminium pig and smooth aluminum sheet to cause the problem of short circuit at the aluminium silk that the edge part produced in actual course of working, has avoided insulating inefficacy. Simultaneously, insulating part 30 has covered utmost point post heavy groove 11 including extending flange portion 32, extends flange portion 32 completely, like this, annotates the liquid in-process, can effectively prevent that electrolyte from getting into utmost point post heavy groove 11 to prevent that utmost point post structure 20 from causing harmful effects such as pollution.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cover plate assembly, comprising:

the cover plate comprises a cover plate main body (10), wherein a through hole (101) is formed in the cover plate main body (10);

the pole structure (20), at least part of the pole structure (20) is arranged in the through hole (101) in a penetrating way;

an insulating member (30), at least part of the insulating member (30) being interposed between the cover plate body (10) and the pole structure (20);

wherein the pole structure (20) is provided with a pole outer end surface (200) positioned outside the cover plate main body (10), and one end of the insulating component (30) far away from the cover plate main body (10) is provided with an insulating end surface (300); the outer end face (200) of the pole is flush with the insulating end face (300), or the outer end face (200) of the pole is located on one side, away from the cover plate main body (10), of the insulating end face (300).

2. The lid assembly according to claim 1, wherein the insulating part (30) comprises an insulating flange portion (31), the insulating flange portion (31) being arranged around the pole structure (20), the insulating end face (300) being arranged on the insulating flange portion (31).

3. The lid assembly according to claim 2, wherein the pole structure (20) comprises a first pole section (21), the first pole section (21) being located outside the lid body (10), the insulating flange section (31) being fitted over the first pole section (21).

4. The cover plate assembly according to claim 3, wherein the pole structure (20) comprises a second pole part (22), the second pole part (22) being arranged through the through hole (101) and being connected with the first pole part (21); the insulating flange portion (31) further includes an insulating main body portion (310), and the insulating main body portion (310) is interposed between the lid main body (10) and the first pole portion (21).

5. The lid assembly according to claim 2, wherein the insulating part (30) further comprises an extension flange portion (32), an inner wall end of the extension flange portion (32) being connected with the insulating flange portion (31), an outer wall end of the extension flange portion (32) extending away from the pole structure (20).

6. The lid assembly of claim 5, wherein the insulating flange portion (31) and the extended flange portion (32) are both annular, the extended flange portion (32) being disposed around the insulating flange portion (31).

7. The lid assembly of claim 5,

one end of the extending flange part (32) far away from the insulating end surface (300) is attached to the cover plate main body (10); and/or

The extension flange portion (32) is integrally formed with the insulating flange portion (31).

8. The lid assembly of claim 5,

the length of the extended flange portion (32) is greater than the thickness of the insulating flange portion (31) in a direction between the inner wall end and the outer wall end.

9. The cover plate assembly according to claim 1, wherein the outer wall surface of the cover plate body (10) is provided with a pole sinking groove (11), and at least a part of the insulating member (30) is located in the pole sinking groove (11).

10. A battery comprising a cell and a cover assembly for covering the cell, wherein the cover assembly is as claimed in any one of claims 1 to 9.