CN219739104U - Battery top cover and battery - Google Patents

Abstract

The utility model relates to a battery top cover and a battery. The battery top cover includes: electrode terminals, fixing rings, and aluminum sheets; wherein, open first recess on the light aluminum sheet, be equipped with the utmost point post through-hole in the middle of the first recess, electrode terminal is located the top of utmost point post through-hole, and in first recess was arranged in to the lower part of solid fixed ring, set up first step around light aluminum sheet upper portion was outer, and light aluminum sheet riveting makes first step and solid fixed ring laminating and compress tightly. The installation of battery top cap can be simplified to this scheme.

Description

Battery top cover and battery

Technical Field

The utility model relates to the technical field of storage batteries, in particular to a battery top cover and a battery.

Background

With the increasing prominence of environmental problems, people start to actively advocate low-carbon economy. New energy automobiles are rising with increasingly severe air quality. A wide range of manufacturers and consumers are also beginning to recognize hybrid vehicles and pure electric vehicles as representative new energy vehicles. The battery is used as a main power source of the new energy automobile and becomes one of core components of the electric automobile. The top cover in the single battery structural member is one of the core components, the structure of the top cover is the most complex, the cost is relatively high, when the fixing ring of the current battery is fixed with the aluminum sheet, the fixing ring and the aluminum sheet are simply welded and fixed, as a battery cell cover plate, a battery cell, a module and a battery pack of the battery disclosed in patent 202021260530.7, an upper insulating plastic ring is sleeved behind a pole column hole of the aluminum sheet, and the upper insulating plastic ring is provided with the fixing ring which is fixedly connected with the peripheral wall of the pole column, so that all the components from top to bottom are in seamless lamination and compression; the top surface of the pole is provided with a module busbar welding area. However, this method is complicated in mounting the battery top cover.

Disclosure of Invention

In view of the above, it is necessary to provide a battery top cover and a battery.

A battery top cover comprising: electrode terminals, fixing rings, and aluminum sheets; wherein, open first recess on the light aluminum sheet, be equipped with the utmost point post through-hole in the middle of the first recess, electrode terminal is located the top of utmost point post through-hole, and in first recess was arranged in to the lower part of solid fixed ring, set up first step around light aluminum sheet upper portion was outer, and light aluminum sheet riveting makes first step and solid fixed ring laminating and compress tightly.

In one embodiment, the aluminum sheet is riveted with the fixing ring to form a second groove.

In one embodiment, the second groove has a cross-sectional shape of trapezoid, square, semicircle, and triangle.

In one embodiment, after the aluminum sheet is riveted with the fixing ring, a gap is formed between the outer end surface of the lower part of the fixing ring and the inner surface of the first groove of the aluminum sheet, and the gap distance is 0.01-1mm.

In one embodiment, at least one fourth groove is formed in the periphery of the fixing ring, at least one convex hull is arranged on the outer upper surface of the first groove, and the convex hull is embedded with the fourth groove.

In one embodiment, the bottom of the fourth groove communicates with the upper surface of the fixing ring or the bottom of the fourth groove is at a distance from the upper surface of the fixing ring.

In one embodiment, the depth of the fourth groove upwards is at least 0.1mm.

In one embodiment, the battery top cover further comprises: the electrode terminal is connected with the fixed ring through a connecting piece; the top of the fixing ring is inlaid in the upper plastic, the fixing ring is integrally injection molded, and the adapter piece is fixed on the lower surface of the electrode terminal through welding.

A battery comprises the battery top cover.

Above-mentioned battery top cap and battery, through setting up first step, light aluminum sheet riveting makes first step and solid fixed ring laminating and compress tightly, can effectually reduce the manufacturing cost of top cap.

Drawings

FIG. 1 is a cross-sectional view of a battery top cover in one embodiment;

FIG. 2 is a cross-sectional view of an aluminum flake in one embodiment;

FIG. 3 is a cross-sectional view of a retaining ring in one embodiment;

FIG. 4 is a cross-sectional view of another retaining ring in one embodiment;

fig. 5 is an exploded view of a battery top cover according to an embodiment.

Reference numerals: 1-electrode terminals; 2-plastic feeding; 21-the outer side of the upper plastic; 3-fixing ring; 31-the lower surface of the fixed ring; 32-a second step; 33-through holes; 34-outside the fixation ring; 35-bayonet; 4-a light aluminum sheet; 41-upper surface of aluminum flake; 42-a first groove; 43-post through hole; 44-convex hull; 45-a second groove; 46-a first step; 47-a second groove; 48-a third groove; 5-lower plastic; 6-a transfer sheet; 61-the upper surface of the swivel plate; 7-sealing rings.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present utility model, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" or "a number" means two or more, unless specifically defined otherwise.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the utility model, which is defined by the claims, but rather by the claims, unless otherwise indicated, and that any structural modifications, proportional changes, or dimensional adjustments, which would otherwise be apparent to those skilled in the art, would be made without departing from the spirit and scope of the utility model.

In one embodiment, as shown in fig. 1 to 4, there is provided a battery top cover comprising: an electrode terminal 1, a fixing ring 3, and a photo-aluminum sheet 4; wherein, open first recess 42 on the light aluminum sheet 4, be equipped with utmost point post through-hole 43 in the middle of the first recess 42, electrode terminal 1 is located the top of utmost point post through-hole 43, and in first recess 42 was arranged in to the lower part of solid fixed ring 3, set up first step 46 around light aluminum sheet 2 upper portion outward, and light aluminum sheet riveting makes first step 46 and solid fixed ring 3 laminating and compress tightly.

Wherein, the aluminum sheet is both ends parallel and level, and the centre sets up the recess, makes first step and solid fixed ring laminating and compress tightly through the riveting, goes up the upper portion of plastic upper portion and compresses tightly electrode terminal's upper portion.

The battery top cover is fixed together through riveting through the aluminum sheet and the fixing ring, so that the fixing ring is prevented from moving up and down. The laser welding of the fixing ring and the aluminum sheet is omitted, so that the manufacturing cost of the top cover is effectively reduced.

In one embodiment, the aluminum sheet 4 is riveted with the fixing ring 3 to form a second groove 45.

In one embodiment, the second groove 45 has a trapezoid, square, semicircle, and triangle cross-section.

In one embodiment, after the aluminum sheet 4 is riveted with the fixing ring 3, a gap is formed between the outer end surface of the lower part of the fixing ring 3 and the inner surface of the first groove 42 of the aluminum sheet 4, and the gap distance is 0.01-1mm.

In one embodiment, at least one fourth groove 35 is formed on the periphery of the fixing ring, at least one convex hull 44 is formed on the upper surface of the outer surface 42 of the first groove, and the convex hull 44 is engaged with the fourth groove 35.

Wherein the bottom of the fourth groove 35 communicates with the upper surface 41 of the fixing ring 3 or the bottom of the fourth groove 35 is at a distance from the upper surface 41 of the fixing ring 3.

In one embodiment, the depth of the fourth groove 35 is at least 0.1mm.

In one embodiment, the battery top cover further comprises: the electrode terminal 1 and the fixing ring 3 are provided with a sealing ring 7 in the middle; the top of the fixing ring is inlaid in the upper plastic 2, and is integrally injection molded, and the adapter plate 6 is fixed on the lower surface of the electrode terminal 1 through welding.

In one embodiment, a battery is provided that includes the battery top cover described in the previous embodiments.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (9)

1. A battery top cover, comprising: an electrode terminal (1), a fixing ring (3) and an aluminum sheet (4); wherein, open first recess (42) on light aluminum sheet (4), be equipped with utmost point post through-hole (43) in the middle of first recess (42), electrode terminal (1) are located the top of utmost point post through-hole (43), and in first recess (42) was arranged in to the lower part of solid fixed ring (3), set up first step (46) around light aluminum sheet (4) upper portion is outer, and light aluminum sheet riveting makes first step (46) and solid fixed ring (3) laminating and compress tightly.

2. The battery top cover according to claim 1, characterized in that the aluminum sheet (4) is riveted with the fixing ring (3) to form a second groove (45).

3. The battery top cover according to claim 2, wherein the second groove (45) has a cross-sectional shape of trapezoid, square, semicircle, and triangle.

4. The battery top cover according to claim 1, wherein after the aluminum sheet (4) is riveted with the fixing ring (3), the outer end surface of the lower part of the fixing ring (3) has a gap with the inner surface of the first groove (42) of the aluminum sheet (4), and the gap distance is 0.01-1mm.

5. The battery top cover according to claim 1, wherein at least one fourth groove (35) is provided on the outer periphery of the fixing ring, at least one convex hull (44) is provided on the upper surface of the first groove (42), and the convex hull (44) is engaged with the fourth groove (35).

6. The battery top cover according to claim 5, characterized in that the bottom of the fourth groove (35) communicates with the upper surface (41) of the fixing ring (3) or the bottom of the fourth groove (35) is at a distance from the upper surface (41) of the fixing ring (3).

7. The battery top cover according to claim 5, characterized in that the depth of the fourth groove (35) upwards is at least 0.1mm.

8. The battery top cover of claim 1 or 4, further comprising: the electrode terminal is characterized in that a sealing ring (7) is arranged between the electrode terminal (1) and the fixed ring (3); the top of the fixing ring is inlaid in the upper plastic (2), the fixing ring is integrally injection molded, and the adapter piece (6) is fixed on the lower surface of the electrode terminal (1) through welding.

9. A battery comprising the battery top cover of any one of claims 1-8.