CN215184249U

CN215184249U - Top cover structure and battery

Info

Publication number: CN215184249U
Application number: CN202121229532.4U
Authority: CN
Inventors: 孙飞; 苑丁丁
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 utility model discloses a top cap structure includes utmost point post body, insulating support, fixed plate and utmost point post cap, insulating support and fixed plate all set up between utmost point post body and utmost point post cap, are provided with first through-hole on the fixed plate, are provided with the second through-hole on the insulating support, utmost point post cap runs through and is provided with utmost point post hole, utmost point post body can run through and set up in first through-hole, second through-hole and utmost point post hole, utmost point post hole's inside wall protrusion is provided with the fixed block, utmost point post body's side is provided with the draw-in groove that corresponds the fixed block, the draw-in groove can be pegged graft with the fixed block. The utility model discloses a top cap structure can reduce and set up extra riveting process and viscose technology, and overall structure retrencies, and joint strength is high, and assembly process is simple, realizes with low costs.

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, rolls up the core setting in the casing, and the top cap is fixed through welding and casing, and when being connected power supply unit's input and the utmost point post of top cap, the electric current of battery can be drawn forth by the utmost point post on the top cap.

However, the fixing mode of the existing pole and the top cover is riveting or adhesive connection, the process is complex, and the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a top cap structure, its overall structure is retrencied, and joint strength is high, and assembly process is simple, realizes with low costs.

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:

the first aspect provides a top cap structure, including utmost point post body, insulating support, fixed plate and utmost point post cap, insulating support with the fixed plate all sets up utmost point post body with between the utmost point post cap, be provided with first through-hole on the fixed plate, be provided with the second through-hole on the insulating support, utmost point post cap runs through and is provided with utmost point post hole, utmost point post body can run through set up in first through-hole the second through-hole with utmost point post hole, the inside wall protrusion in utmost point post hole is provided with the fixed block, the side of utmost point post body is provided with the correspondence the draw-in groove of fixed block, the draw-in groove can with the fixed block is pegged graft.

As a preferred scheme of the top cover structure, a protruding structure is arranged on one side, close to the pole cap, of the fixed plate, a groove is arranged on the side, close to the fixed plate, of the pole cap, and the protruding structure can be connected with the groove in an inserting mode.

As a preferable scheme of the top cover structure, a convex edge structure is convexly arranged on the outer side wall of the pole cap close to the fixed plate, and the groove is arranged between the convex edge structure and the pole cap.

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

As a preferable scheme of the top cover structure, the protruding structure is a convex column, a convex strip or a convex ring.

As a preferred scheme of top cap structure, still include the sealing washer, the sealing washer sets up the fixed plate with between the utmost point post body, the external diameter of sealing washer is greater than the diameter of first through-hole.

As a preferred scheme of top cap structure, the diameter of second through-hole is more than or equal to the external diameter of sealing washer, utmost point post cap is close to one side of utmost point post body is provided with protruding edge, protruding edge is used for the butt the sealing washer.

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

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

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 body, insulating support, fixed plate and utmost point post cap, wherein, insulating support and fixed plate all set up between utmost point post body and utmost point post cap, are provided with first through-hole on the fixed plate, are provided with the second through-hole on the insulating support, and utmost point post cap runs through and is provided with utmost point post hole, and utmost point post body can run through and set up in first through-hole, second through-hole and utmost point post hole for utmost point post body can fix a position utmost point post cap, fixed plate and insulating support. 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 be pegged graft with the fixed block for utmost point post body and utmost point post cap can realize pegging graft through fixed block and draw-in groove, thereby plug into holistic top cap structure with utmost point post body, insulating support, fixed plate and utmost point post cap. Therefore, the utility model discloses the top cap structure can reduce and set up extra riveting technology and viscose technology, and overall structure retrencies, and joint strength is high, and assembly process is simple, realizes with low costs.

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 top cover structure according to another 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 structural diagram of a battery according to an embodiment of the present invention.

In the figure:

1. a roof structure; 11. a pole body; 111. a card slot;

12. an insulating support; 121. a second through hole;

13. a fixing plate; 131. a first through hole; 132. a raised structure; 1321. a first end; 1322. a second end;

14. a pole cap; 141. a pole hole; 142. a fixed block; 143. a groove; 144. a convex edge structure; 145. a convex edge;

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 otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning as being connected, detachably 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, the embodiment of the utility model provides a top cap structure 1, including utmost point post body 11, insulating support 12, fixed plate 13 and utmost point post cap 14, insulating support 12 and fixed plate 13 all set up between utmost point post body 11 and utmost point post cap 14, be provided with first through-hole 131 on the fixed plate 13, be provided with second through-hole 121 on the insulating support 12, utmost point post cap 14 runs through and is provided with utmost point post hole 141, utmost point post body 11 can run through and set up in first through-hole 131, second through-hole 121 and utmost point post hole 141, utmost point post hole 141's inside wall protrusion is provided with fixed block 142, utmost point post body 11's side is provided with the draw-in groove 111 that corresponds fixed block 142, draw-in groove 111 can peg graft with fixed block 142.

The embodiment of the utility model provides a through setting up utmost point post body 11, insulating support 12, fixed plate 13 and utmost point post cap 14 form top cap structure 1, wherein, insulating support 12 and fixed plate 13 all set up between utmost point post body 11 and utmost point post cap 14, be provided with first through-hole 131 on the fixed plate 13, be provided with second through-hole 121 on the insulating support 12, utmost point post cap 14 runs through and is provided with utmost point post hole 141, utmost point post body 11 can run through and set up in first through-hole 131, second through-hole 121 and utmost point post hole 141, make utmost point post body 11 can fix a position utmost point post cap 14, fixed plate 13 and insulating support 12. Moreover, the inside wall protrusion of utmost point post hole 141 is provided with fixed block 142, and the side of utmost point post body 11 is provided with the draw-in groove 111 that corresponds fixed block 142, and draw-in groove 111 can peg graft with fixed block 142 for utmost point post body 11 and utmost point post cap 14 can realize fixed connection through fixed block 142 and draw-in groove 111, thereby with utmost point post body 11, insulating support 12, fixed plate 13 and utmost point post cap 14 fixed connection become holistic top cap structure 1.

Therefore, the utility model discloses top cap structure 1 can reduce and set up extra riveting technology and viscose technology, and overall structure retrencies, and joint strength is high, and assembly process is simple, realizes with low costs.

Referring to fig. 1, in an embodiment, a side of the fixing plate 13 close to the pole cap 14 is provided with a protrusion 132, a side of the pole cap 14 close to the fixing plate 13 is provided with a groove 143, and the protrusion 132 can be inserted into the groove 143 to limit the distance between the pole cap 14 and the fixing plate 13 and prevent the pole cap 14 from rotating relative to the fixing plate 13. In addition, the fixed connection of fixed plate 13 and utmost point cap 14 also can promote the utility model discloses roof structure 1's of embodiment joint strength.

Preferably, referring to fig. 4, the pole cap 14 is an elastic pole cap 14, the groove bottom cross-sectional width of the groove 143 is greater than the slot cross-sectional width of the groove 143, the protruding structure 132 includes a first end 1321 close to the pole cap 14 and a second end 1322 far away from the pole cap 14, the width of the first end 1321 is greater than the width of the second end 1322, when the protruding structure 132 is disposed in the groove 143, the protruding structure 132 can be limited from escaping from the groove 143 by the engagement of the slot of the groove 143 with the first end 1321 of the protruding structure 132, so that the pole cap 14 is limited from escaping from the fixing plate 13, and the connection strength of the pole cap 14 and the fixing plate 13 is further improved.

Preferably, referring to fig. 1, 2 and 3, the protrusion 132 is a convex column, a convex strip or a convex ring, and the connection strength of the protrusion 132 and the groove 143 with different shapes is different, and the specific shape depends on the actual requirement. Similarly, the cross-sectional shape of the groove 143 parallel to the plane of the fixed plate 13 is circular, arc-shaped or annular, and the specific shape is also determined by actual requirements, but the present embodiment is not limited specifically.

Still preferably, referring to fig. 4, the convex structure 144 is convexly disposed on the outer side wall of the pole cap 14 close to the fixing plate 13, the groove 143 is disposed between the convex structure 144 and the pole cap 14, and the groove 143 is accommodated by the convex structure 144, so that the volume of the pole cap 14 can be reduced, a concave region is formed between the pole cap 14 and the convex structure 144, the concave region can facilitate clamping of the pole cap 14, and the installation efficiency of the pole cap 14 is improved.

Optionally, referring to fig. 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 13 and the post body 11, the outer diameter of the sealing ring 15 is greater than the diameter of the first through hole 131, so as to avoid the electrolyte below the top cover structure 1 from overflowing, or the foreign matter above the top cover structure 1 enters the top cover structure 1.

Further, referring to fig. 4 and 5, the diameter of the second through hole 121 of the insulating holder 12 is greater than or equal to the outer diameter of the sealing ring 15 so that the sealing ring 15 can be disposed in the second through hole 121. Furthermore, the pole cap 14 is provided with a convex edge 145 on one side close to the pole body 11, and the convex edge 145 is used for abutting against the sealing ring 15, so that the thickness of the top cover structure 1 can be further reduced.

In addition, referring to fig. 1, the pole post cap 14 is an injection molding structure, the pole post cap 14 is injection molded on the fixing plate 13, and the fixing block 142 is injection molded in the clamping groove 111, so that the contact surface area of the pole post cap 14 and the pole post body 11 can be increased, the connection strength between the pole post cap 14 and the pole post body 11 is improved, and the overall connection strength of the top cover structure 1 is further improved.

On the other hand, the fixing plate 13 is an aluminum plate, and the characteristics of low unit price, high structural strength, light weight and easiness in processing of the aluminum material are utilized, so that the overall cost of the fixing plate 13 can be reduced, and the structural strength of the fixing plate 13 is also ensured.

Referring to fig. 6, the embodiment of the present invention further provides a battery, including the casing 2, the winding core 3 and the top cover structure 1 of any of the above embodiments, the winding core 3 is arranged in the casing 2, and the top cover structure 1 is fixed and arranged at the opening of the 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. The utility model provides a top cap structure, its characterized in that, includes utmost point post body, insulating support, fixed plate and utmost point post cap, insulating support with the fixed plate all sets up utmost point post body with between the utmost point post cap, be provided with first through-hole on the fixed plate, be provided with the second through-hole on the insulating support, utmost point post cap runs through and is provided with utmost point post hole, utmost point post body can run through set up in first through-hole the second through-hole with utmost point post hole, the inside wall protrusion in utmost point post hole is provided with the fixed block, the side of utmost point post body is provided with the correspondence the draw-in groove of fixed block, the draw-in groove can with the fixed block is pegged graft.

2. The roof structure of claim 1, wherein the side of the fixing plate close to the pole cap is provided with a protruding structure, the side of the pole cap close to the fixing plate is provided with a groove, and the protruding structure can be inserted into the groove.

3. The roof structure according to claim 2, characterized in that the pole cap is convexly provided with a chime near the outer side wall of the fixation plate, and the groove is provided between the chime and the pole cap.

4. The roof structure of claim 2, wherein said pole cap is a resilient pole cap, a groove bottom cross-sectional width of said groove is greater than a notch cross-sectional width of said groove, said raised structure 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 lid structure of claim 2, wherein said protruding structure is a post, rib, or collar.

6. The top cover structure of claim 1, further comprising a sealing ring disposed between the fixing plate and the post body, wherein an outer diameter of the sealing ring is greater than a diameter of the first through hole.

7. The top cover structure of claim 6, wherein the diameter of the second through hole is greater than or equal to the outer diameter of the sealing ring, and a convex edge is arranged on one side of the pole cap close to the pole body and used for abutting against the sealing ring.

8. The roof structure of any of claims 1 to 7, wherein the pole cap is an injection molded structure.

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

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.