CN215184247U

CN215184247U - Top cover structure and battery

Info

Publication number: CN215184247U
Application number: CN202121226301.8U
Authority: CN
Inventors: 孙飞; 苑丁丁; 吕正中
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-14
Anticipated expiration: 2031-06-02

Abstract

The utility model relates to a battery technology field specifically discloses a top cap structure and battery. The top cover structure of the utility model comprises a pole column cap, a pole column hole is arranged on the pole column cap in a penetrating way, and a fixed block is arranged on the inner side wall of the pole column hole in a protruding way; the fixing plate is provided with a first through hole in a penetrating mode, and a first groove is concavely formed in one side, away from the pole cap, of the fixing plate; the insulating bracket is provided with a second through hole in a penetrating manner, the first through hole and the second through hole are correspondingly arranged, a first bulge is convexly arranged on one side of the insulating bracket close to the fixing plate, and the first bulge is fixedly connected with the first groove; utmost point post body, utmost point post body can run through to set up in first through-hole, second through-hole and utmost point post hole, and the side of utmost point post body is provided with the draw-in groove that corresponds the fixed block, and the draw-in groove can form fixed connection with the fixed block. The utility model discloses a top cap structure need not to set up extra riveting process and viscose technology, and assembly process is simple, and compact structure retrencies, and overall cost is low.

Description

Top cover structure and battery

Technical Field

The utility model relates to a battery technology field especially relates to a top cap structure and battery.

Background

At present, the battery generally includes the casing, rolls up core and top cap, and the casing is one end open-ended open structure, places the casing in rolling up the core in, and the top cap is fixed through welding and casing, and power supply unit's input is connected with the utmost point post of top cap for the electric current of battery is drawn forth through the utmost point post on the top cap.

But because insulating support and top cap fixed position are single weak, the insulating support perk easily after the assembly leads to the battery to appear the safety problem, and moreover, current utmost point post is connected for riveting or viscose with the fixed mode of top cap, and the technology is complicated, and is with high costs.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a top cap structure, its assembly process is simple, and compact structure retrencies, and overall cost is low.

It is another object of the embodiments of the present invention to provide a battery, which is light in weight, small in size and low in cost.

To achieve the purpose, the embodiment of the present invention adopts the following technical solutions:

in a first aspect, there is provided a roof structure comprising:

the pole column cap is provided with a pole column hole in a penetrating mode, and a fixing block is arranged on the inner side wall of the pole column hole in a protruding mode;

the fixing plate is provided with a first through hole in a penetrating mode, and a first groove is concavely formed in one side, away from the pole cap, of the fixing plate;

the insulating bracket is provided with a second through hole in a penetrating manner, the first through hole and the second through hole are correspondingly arranged, a first bulge is convexly arranged on one side, close to the fixing plate, of the insulating bracket, and the first bulge is fixedly connected with the first groove;

the post body can run through the first through hole, the second through hole and the post hole, the side of post body is provided with the correspondence the draw-in groove of fixed block, the draw-in groove can with the fixed block forms fixed connection.

As a preferred scheme of the top cover structure, one side of the fixing plate, which is close to the pole cap, is convexly provided with a second protrusion, the side of the pole cap, which is close to the fixing plate, is provided with a second groove, and the second protrusion is fixedly connected with the second groove.

As a preferable mode of the top cover structure, the second protrusion is in the shape of a convex column, a convex strip or a convex ring.

As a preferable mode of the top cover structure, a groove bottom sectional width of the second groove is larger than a notch sectional width of the second groove, the second protrusion includes a first end close to the pole cap and a second end far from the pole cap, and a width of the first end is larger than a width of the second end.

As an optimal scheme of the top cover structure, a third protrusion is arranged on the side face, close to the fixed plate, of the pole cap, a third groove is arranged on one side, close to the pole cap, of the fixed plate, and the third protrusion is fixedly connected with the third groove.

As a preferable mode of the top cover structure, the third groove is provided at a rim of the pole hole.

As a preferable scheme of the top cover structure, the fixing plate is an aluminum plate.

As a preferred scheme of top cap structure, the insulating support is close to utmost point post body one side is provided with the holding tank, the cell wall of holding tank with utmost point post body's lateral wall aligns.

As a preferable scheme of the top cover structure, the pole cap is an injection molding structure.

In a second aspect, a battery is provided, which comprises a shell, a winding core and a top cover structure, wherein the winding core is arranged in the shell, and the top cover structure is fixedly arranged at an opening of the shell.

The utility model discloses beneficial effect does:

form the top cap structure through setting up utmost point post cap, fixed plate, insulating support and utmost point post body, wherein, utmost point post cap runs through and is provided with utmost point post hole, and the inside wall protrusion in utmost point post hole is provided with the fixed block, and the side of utmost point post body is provided with the draw-in groove that corresponds the fixed block, and the draw-in groove can form fixed connection with the fixed block for utmost point post cap and utmost point post body pass through fixed block and draw-in groove locking connection. In addition, the fixed plate deviates from the concave first recess that is equipped with in one side of pole cap, and the one side protrusion that insulating support is close to the fixed plate is provided with first arch, and first arch and first recess fixed connection can improve the joint strength of fixed plate and insulating support. Moreover, run through on the fixed plate and be provided with first through-hole, run through on the insulating support and be provided with the second through-hole, first through-hole and second through-hole correspond the setting, and utmost point post body can run through and set up in first through-hole, second through-hole and utmost point post hole, and the locking of rethread fixed block and draw-in groove is connected, can connect into holistic top cap structure with utmost point post cap, fixed plate, insulating support and utmost point post body locking, avoids the insulating support perk. Therefore, the utility model discloses the top cap structure need not to set up extra riveting technology and viscose technology, and assembly process is simple, and compact structure retrencies, and overall cost is low.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is an exploded schematic view of a top cover structure according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a fixing plate according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a fixing plate according to another embodiment of the present invention.

Fig. 4 is an exploded schematic view of a pole cap and a fixing plate according to an embodiment of the present invention.

Fig. 5 is an assembly structure diagram of a top cover structure according to an embodiment of the present invention.

Fig. 6 is a schematic cross-sectional view of a battery according to an embodiment of the present invention.

In the figure:

1. a roof structure;

11. a pole cap; 111. a pole hole; 112. a fixed block; 113. a second groove; 114. a third protrusion;

12. a fixing plate; 121. a first through hole; 122. a first groove; 123. a second protrusion; 1231. a first end; 1232. a second end; 124. a third groove;

13. an insulating support; 131. a second through hole; 132. a first protrusion; 133. accommodating grooves;

14. a pole body; 141. a card slot; 15. a seal ring; 2. a housing; 3. and (6) winding cores.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 and 4, an embodiment of the present invention provides a roof structure 1, including:

the pole column cap 11 is provided with a pole column hole 111 in a penetrating manner, and the inner side wall of the pole column hole 111 is provided with a fixing block 112 in a protruding manner;

a first through hole 121 is formed in the fixing plate 12 in a penetrating manner, and a first groove 122 is concavely formed in one side of the fixing plate 12, which is far away from the pole cap 11;

the insulating bracket 13 is provided with a second through hole 131 in a penetrating manner, the first through hole 121 and the second through hole 131 are correspondingly arranged, a first protrusion 132 is convexly arranged on one side of the insulating bracket 13 close to the fixing plate 12, and the first protrusion 132 is fixedly connected with the first groove 122;

the post body 14, the post body 14 can run through and set up in first through-hole 121, second through-hole 131 and post hole 111, and the side of post body 14 is provided with the draw-in groove 141 that corresponds fixed block 112, and draw-in groove 141 can form fixed connection with fixed block 112.

The embodiment of the utility model provides a form top cap structure 1 through setting up utmost point post cap 11, fixed plate 12, insulating support 13 and utmost point post body 14, wherein, utmost point post cap 11 runs through and is provided with utmost point post hole 111, and the inside wall protrusion in utmost point post hole 111 is provided with fixed block 112, and the side of utmost point post body 14 is provided with the draw-in groove 141 that corresponds fixed block 112, and draw-in groove 141 can form fixed connection with fixed block 112 for utmost point post cap 11 and utmost point post body 14 pass through fixed block 112 and draw-in groove 141 locking connection.

In addition, the fixed plate 12 is provided with a first groove 122 in a concave manner on one side departing from the pole cap 11, the insulating support 13 is provided with a first protrusion 132 in a convex manner on one side close to the fixed plate 12, and the first protrusion 132 is fixedly connected with the first groove 122, so that the connection strength between the fixed plate 12 and the insulating support 13 can be improved. Furthermore, the fixing plate 12 is provided with a first through hole 121 in a penetrating manner, the insulating support 13 is provided with a second through hole 131 in a penetrating manner, the first through hole 121 and the second through hole 131 are correspondingly arranged, the pole body 14 can be arranged in the first through hole 121 in a penetrating manner, the second through hole 131 and the pole hole 111 in a penetrating manner, the fixing block 112 is connected with the clamping groove 141 in a locking manner, the pole cap 11, the fixing plate 12, the insulating support 13 and the pole body 14 can be connected into the whole top cover structure 1 in a locking manner, and the insulating support 13 is prevented from tilting.

Therefore, the utility model discloses top cap structure 1 need not to set up extra riveting process and viscose technology, and assembly process is simple, and compact structure retrencies, and overall cost is low.

In one embodiment, referring to fig. 1, a second protrusion 123 is convexly disposed on a side of the fixing plate 12 close to the post cap 11, a second groove 113 is disposed on a side of the post cap 11 close to the fixing plate 12, the second protrusion 123 is fixedly connected with the second groove 113, and the connection strength between the fixing plate 12 and the post cap 11 can also be enhanced by the clamping connection between the second protrusion 123 and the second groove 113.

Further, referring to fig. 1, 2 and 3, the second protrusion 123 is in the shape of a convex column, a convex strip or a convex ring, and the connection strength between the second protrusion 123 and the second groove 113 in different shapes is different, and the specific shape depends on actual requirements. Similarly, the shape of the second groove 113 is a concave hole, a concave groove or a concave ring, and the specific shape is also determined by actual requirements, and the embodiment is not particularly limited.

More preferably, referring to fig. 4, the groove bottom cross-sectional width of the second groove 113 is greater than the groove bottom cross-sectional width of the second groove 113, the second protrusion 123 includes a first end 1231 close to the pole cap 11 and a second end 1232 far from the pole cap 11, the width of the first end 1231 is greater than the width of the second end 1232, when the second protrusion 123 is disposed in the second groove 113, the second protrusion 123 can be restricted from being separated from the second groove 113, and the connection strength of the pole cap 11 and the fixing plate 12 can be further increased.

In another embodiment, referring to fig. 4, the side of the pole cap 11 close to the fixing plate 12 is provided with a third protrusion 114, the side of the fixing plate 12 close to the pole cap 11 is provided with a third groove 124, and the third protrusion 114 and the third groove 124 are fixedly connected, so that the connection strength of the pole cap 11 and the fixing plate 12 can be further increased. And the pole cap 11 is respectively provided with a second groove 113 and a third protrusion 114, and the fixing plate 12 is respectively provided with a second protrusion 123 and a third groove 124, so that the structural stress on the pole cap 11 and the fixing plate 12 is more uniform, and the service life can be prolonged.

Preferably, referring to fig. 1, the third groove 124 is disposed at the edge of the pole hole 111, so that the third groove 124 can be machined on the fixing plate 12, thereby saving machining cost.

Additionally, referring to fig. 1, the insulating support 13 is provided with a receiving groove 133 on a side close to the post body 14, and a groove wall of the receiving groove 133 is aligned with a side wall of the post body 14, so that the post body 14 can be limited from rotating relative to the insulating support 13, and an effect of positioning the post body 14 is achieved.

In particular, referring to fig. 1 and 5, the top cover structure 1 of the embodiment of the present invention further includes a sealing ring 15, the sealing ring 15 is disposed between the fixing plate 12 and the post body 14, the outer diameter of the sealing ring 15 is greater than the diameter of the first through hole 121, so as to prevent the electrolyte from entering between the fixing plate 12 and the post body 14

Alternatively, referring to fig. 1, the fixing plate 12 is an aluminum plate, and the overall cost of the fixing plate 12 can be reduced and the structural strength of the fixing plate 12 can be ensured by using the characteristics of low unit price, high structural strength, light weight and easy processing of the aluminum material.

In a preferred embodiment, the post cap 11 is an injection molding structure, the post cap 11 is injection molded on the fixing plate 12, and the fixing block 112 is injection molded in the clamping groove 141, so that the contact surface area of the post cap 11 and the post body 14 can be increased, the connection strength between the post cap 11 and the post body 14 is improved, and the connection strength of the top cover structure 1 is improved.

Referring to fig. 6, an embodiment of the present invention provides a battery, including casing 2, roll core 3 and the top cap structure 1 of any of the above-mentioned embodiments, place casing 2 in roll core 3 in, top cap structure 1 is fixed to be set up in the opening of casing 2. The top cover structure 1 in this embodiment may have the same structure and achieve the same effect as the top cover structure 1 in the above embodiment, and details are not described in this embodiment.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in a descriptive sense or positional relationship based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. A roof structure, comprising:

2. The roof structure of claim 1, wherein a second protrusion is protruded from a side of the fixing plate close to the pole cap, a second groove is formed on a side of the pole cap close to the fixing plate, and the second protrusion is fixedly connected with the second groove.

3. The lid structure of claim 2, wherein said second protrusion is in the shape of a post, bead or torus.

4. The roof structure of claim 2, wherein said second groove has a groove bottom cross-sectional width greater than a slot cross-sectional width of said second groove, said second projection includes a first end proximate said pole cap and a second end distal from said pole cap, said first end having a width greater than a width of said second end.

5. The roof structure of claim 1, wherein the side of the pole cap near the fixing plate is provided with a third protrusion, the side of the fixing plate near the pole cap is provided with a third groove, and the third protrusion is fixedly connected with the third groove.

6. The roof structure of claim 5, wherein the third groove is disposed at a rim of the stud hole.

7. Roof structure in accordance with one of the claims 1 to 6, characterized in that the fixing plate is an aluminium plate.

8. The roof structure according to any one of claims 1 to 6, characterized in that the insulating support is provided with a receiving groove on a side thereof adjacent to the pole body, and a groove wall of the receiving groove is aligned with a side wall of the pole body.

9. The roof structure of any of claims 1 to 6, wherein the pole cap is an injection molded structure.

10. A battery comprising a can, a jelly roll and the cap structure of any one of claims 1 to 9, wherein the jelly roll is disposed in the can, and the cap structure is fixedly disposed at an opening of the can.