CN219163573U

CN219163573U - Lithium ion battery shell

Info

Publication number: CN219163573U
Application number: CN202223245660.5U
Authority: CN
Inventors: 高海洋; 李现红; 孔长青; 尹立华; 潘钰
Original assignee: Shandong Sacred Sun Power Sources Co Ltd
Current assignee: Shandong Sacred Sun Power Sources Co Ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-06-09
Anticipated expiration: 2032-12-05

Abstract

The application discloses a lithium ion battery shell relates to the technical field of battery shells. The lithium ion battery shell comprises a battery shell body, a slot and a sealing cover, wherein the slot is formed in the top of the battery shell body, the sealing cover is arranged on the outer side of the top of the battery shell body, a top cover matched with the slot is arranged on the outer side of the top of the battery shell body, the battery shell body and the top cover are made of PVC materials, the sealing cover is inserted and installed on the inner wall of the slot, clamping mechanisms matched with the slot are arranged at two ends of the sealing cover, and the buckling grooves are formed in the extending direction of the inner side wall of the slot. Through inserting square lithium ion battery in the inside of battery case, then pegging graft sealed lid and slot, the cooperation of rethread joint mechanism and catching groove and draw-in groove is used to protect lithium ion battery's outside and top surface, and then avoided lithium ion battery to receive direct striking to cause the damage, wherein assembled sealed lid and top cap table are convenient for change and maintenance to lithium ion battery.

Description

Lithium ion battery shell

Technical Field

The utility model relates to the technical field of battery cases, in particular to a lithium ion battery case.

Background

In recent years, with the popularization of mobile internet devices such as smart phones and notebook computers, the performance of lithium ion batteries is in face of higher development requirements, and the small size and high energy density have become research directions of high-performance lithium ion batteries, so that the safety problem is an important precondition for the development of the lithium ion battery market.

However, lithium ion batteries still have many problems in practical application, the shell of the existing lithium ion battery mainly comprises an aluminum-plastic composite film, and the thickness of the shell is 90-113 um, wherein the lithium ion battery shell is easy to damage under the action of external force, so hidden dangers such as electrolyte leakage and the like can be caused, the safe use of the battery is seriously affected, the existing lithium ion battery does not have a protective shell, the lithium ion battery is easy to damage if impacted during the use, and spontaneous combustion is easy to occur, so that serious potential safety hazards exist.

Disclosure of Invention

In view of the above, the utility model provides a lithium ion battery case to solve the problems that the traditional lithium ion battery case has simple structure, no protection and easy damage.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the lithium ion battery shell comprises a battery shell body, a slot and a sealing cover, wherein the slot and the sealing cover are arranged at the top of the battery shell body, a top cover matched with the battery shell body is arranged on the outer side of the top of the battery shell body, and the battery shell body and the top cover are made of PVC materials;

the sealing cover is inserted and installed on the inner wall of the slot, and clamping mechanisms matched with the slot are arranged at two ends of the sealing cover;

the buckling groove is arranged in the extending direction of the inner side wall of the slot, and corresponds to the positions of the clamping mechanisms arranged at the two ends of the slot, and the buckling groove is arranged in the inner side wall of the buckling groove and is close to the upward extending direction of the inner bottom wall of the slot.

Preferably, in the above lithium ion battery case, further comprising: the two ends of the clamping mechanism are provided with the convex blocks, and the convex blocks are mainly used for being clamped with the buckling grooves on the inner side walls of the slots, so that the sealing cover is limited and fixed.

Preferably, in the above lithium ion battery case, the two outer sides of the extending direction of the protruding block in the clamping mechanism are respectively provided with a clamping block, and the clamping block is mainly used for clamping with the clamping groove on the inner side of the buckling groove, wherein the upper end and the lower end of the clamping block are provided with arc blunt ports, which are mainly used for facilitating the plugging of the clamping block and the clamping groove.

Preferably, in the lithium ion battery case, the inner bottom wall of the sealing cover is symmetrically provided with an electrode hole one, the threaded hole one is arranged along the extending direction of the inner side wall of the sealing cover with the electrode hole one, the electrode hole one is mainly used for leaking out the electrode of the lithium ion battery, and the threaded hole one is mainly used for installing a fastening screw, so that the sealing cover is fixed.

Preferably, in the above lithium ion battery case, a sealing groove that is mutually attached to the outside of the battery case is provided at the bottom of the top cover, and the second electrode hole is provided at the top of the top cover and is parallel to the first electrode hole in the extending direction, so as to protect the lithium ion battery by fastening the top cover to the top of the battery case.

Preferably, in the lithium ion battery case, a connecting hole adapted to the threaded hole two is formed in a direction close to the slot on the top surface of the battery case, the threaded hole two is aligned to the connecting hole by fastening the top cover to the outer side of the battery case, and then the top cover is fixed by a screw.

Preferably, in the above lithium ion battery case, further comprising: and the battery clamping seat and the battery groove are arranged on the inner bottom wall of the battery shell, and the protection mechanism is arranged on the inner bottom wall of the battery shell.

Preferably, the spring is located the inside wall of battery case and the quantity of spring is a plurality of groups and is the linear arrangement of regularity among the protection machanism, and the extending direction of spring is located to the locating plate, through setting up spring and locating plate and mainly being used for protecting lithium ion battery's both sides, prevents that the battery case from receiving the direct damage that the striking caused lithium ion battery.

Preferably, the inner bottom wall of the slot is provided with a connecting hole which is mutually flush with the first threaded hole, the sealing cover is connected with the battery shell through a screw, and the connecting hole is mainly used for further increasing the connecting stability of the sealing cover.

According to the utility model, the square lithium ion battery is inserted into the battery shell, then the sealing cover is inserted into the slot, and then the clamping mechanism and the buckling groove are matched with the clamping groove for use, so that the outer side and the top surface of the lithium ion battery are protected, and further the damage to the lithium ion battery caused by direct impact is avoided, wherein the assembled sealing cover and the assembled top cover are convenient for replacing and maintaining the lithium ion battery.

The utility model mainly protects the two sides of the lithium ion battery by arranging the springs and the positioning plates, and prevents the battery shell from being directly damaged by impact, wherein the battery clamping seat and the battery groove which are arranged in the battery shell are mainly used for limiting and fixing the lower end of the square lithium ion battery, thereby preventing the lithium ion battery from shaking in the battery shell.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a lithium ion battery case structure according to the present utility model;

FIG. 2 is a schematic view of the seal cap structure of the present utility model;

FIG. 3 is a schematic view of the top cover structure of the present utility model;

FIG. 4 is a schematic view of a battery housing structure in semi-section according to the present utility model;

FIG. 5 is a schematic view of a battery housing structure in semi-section according to the present utility model;

FIG. 6 is a schematic view of the structure of the buckle slot of the present utility model.

In the figure: 1. a battery case; 2. sealing cover; 3. a top cover; 4. a slot; 5. an electrode hole I; 6. a bump; 7. a clamping block; 8. a first threaded hole; 9. a threaded hole II; 10. electrode hole II; 11. a battery holder; 12. a positioning plate; 13. a battery case; 14. a spring; 15. a buckling groove; 16. a clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but 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.

Referring to fig. 1-6, the utility model discloses a lithium ion battery shell, which comprises a battery shell 1, a slot 4 and a sealing cover 2, wherein the slot 4 and the sealing cover 2 are arranged at the top of the battery shell 1, and a top cover 3 matched with the slot is arranged at the outer side of the top of the battery shell 1;

a connecting hole matched with the threaded hole II is formed in the top surface of the battery shell 1 and in the direction close to the slot 4, the threaded hole II is aligned with the connecting hole by buckling the top cover 3 with the outer side of the battery shell 1, and then the top cover 3 is fixed through a screw;

the sealing groove which is mutually attached to the outer side of the battery shell 1 is formed in the bottom of the top cover 3, the second electrode hole 10 is formed in the top of the top cover 3 and is mutually parallel to the extending direction of the first electrode hole 5, and the top cover 3 and the top of the battery shell 1 are buckled to protect the lithium ion battery.

The sealing cover 2 is inserted and installed on the inner wall of the slot 4, and clamping mechanisms matched with the slot 4 are arranged at two ends of the sealing cover 2;

the inner bottom wall of the slot 4 is provided with a connecting hole which is level with the first threaded hole 8, the sealing cover 2 is connected with the battery shell 1 through a screw, and the connecting hole is arranged on the inner bottom wall of the slot 4 to mainly further increase the connection stability of the sealing cover 2

The inner bottom wall of the sealing cover 2 is symmetrically provided with an electrode hole I5, a threaded hole I8 is arranged in the direction extending along the inner side wall of the sealing cover 2 with the electrode hole I5, the electrode hole I5 is mainly used for leaking electrodes of the lithium ion battery, and the threaded hole I8 is mainly used for installing fastening screws, so that the sealing cover 2 is fixed.

The two ends of the clamping mechanism are provided with the convex blocks 6, and the convex blocks 6 are mainly used for clamping with the buckling grooves 15 on the inner side walls of the slots 4, so that the sealing cover 2 is limited and fixed;

clamping blocks 7 are respectively arranged on the outer sides of two sides of the extending direction of the protruding blocks 6 in the clamping mechanism, the clamping blocks 7 are mainly used for being clamped with clamping grooves 16 on the inner sides of the buckling grooves 15, and arc blunt ports are arranged at the upper end and the lower end of the clamping blocks 7 and are mainly used for facilitating the plugging of the clamping blocks 7 and the clamping grooves 16.

The buckling groove 15 is arranged in the extending direction of the inner side wall of the slot 4, the buckling groove 15 corresponds to the position of the clamping mechanism arranged at the two ends of the slot 4, and the clamping groove 16 is arranged in the direction of the inner side wall of the buckling groove 15 and is close to the upward extending direction of the inner bottom wall of the slot 4.

Locate battery cassette 11 and battery jar 13 and the protection machanism of diapire in the battery case 1, the inside wall of battery case 1 is located to spring 14 and the quantity of spring 14 is a plurality of groups and is the linear arrangement of regularity in protection machanism, and the extending direction of spring 14 is located to locating plate 12, through setting up spring 14 and locating plate 12 and mainly being used for protecting lithium ion battery's both sides, prevents that battery case 1 from receiving the direct damage that the striking caused lithium ion battery.

When the lithium ion battery is fully inserted into the battery shell 1, the sealing cover 2 is inserted into the inner wall of the slot 4, the electrode of the lithium ion battery passes through the electrode hole I5, when the sealing cover 2 is fully inserted into the slot 4, the lug 6 is buckled with the buckling groove 15, the clamping blocks 7 at two ends of the lug 6 are buckled with the clamping groove 16, so that the sealing cover 2 is positioned, then the sealing cover 2 is fastened by passing a screw through the threaded hole I8, the sealing cover 3 is sleeved on the top of the battery shell 1, the electrode of the lithium ion battery passes through the electrode hole II and then passes through the threaded hole II, the electrode of the lithium ion battery passes through the electrode hole II and passes through the threaded hole II, and the top cover 3 is not connected with the battery shell 3 by the threaded hole II, and then the top cover 3 is prevented from being damaged by the external connection of the battery shell 3, and the top cover 1 is prevented from being damaged by the external connection of the battery is ensured.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The lithium ion battery shell is characterized by comprising a battery shell (1), a slot (4) and a sealing cover (2), wherein the slot (4) and the sealing cover (2) are arranged at the top of the battery shell (1), and a top cover (3) matched with the slot is arranged at the outer side of the top of the battery shell (1);

the sealing cover (2) is inserted and installed on the inner wall of the slot (4), and clamping mechanisms matched with the slot (4) are arranged at two ends of the sealing cover (2);

the buckling groove (15) is arranged in the extending direction of the inner side wall of the slot (4), the buckling groove (15) corresponds to the position of the clamping mechanism arranged at the two ends of the slot (4), and the clamping groove (16) is arranged in the inner side wall of the buckling groove (15) and is close to the upward extending direction of the inner bottom wall of the slot (4).

2. The lithium ion battery case of claim 1, further comprising: two ends of the clamping mechanism are provided with protruding blocks (6).

3. The lithium ion battery shell according to claim 2, wherein clamping blocks (7) are respectively arranged on the outer sides of two sides of the extending direction of the protruding block (6) in the clamping mechanism.

4. The lithium ion battery shell according to claim 1, wherein the inner bottom wall of the sealing cover (2) is symmetrically provided with an electrode hole I (5), and the electrode hole I (5) is provided with a threaded hole I (8) along the extending direction of the inner side wall of the sealing cover (2).

5. The lithium ion battery shell according to claim 4, wherein a sealing groove which is mutually attached to the outer side of the battery shell (1) is formed in the bottom of the top cover (3), an electrode hole two (10) is formed in the top of the top cover (3), and the extending direction of the electrode hole two (10) and the extending direction of the electrode hole one (5) are mutually parallel.

6. A lithium ion battery shell according to claim 4, characterized in that the inner bottom wall of the slot (4) is provided with a connecting hole which is mutually flush with the threaded hole one (8), and the sealing cover (2) is connected with the battery shell (1) by a screw.

7. A lithium ion battery case according to claim 1, characterized in that a threaded hole two (9) is provided in the top surface of the battery case (1) in a direction close to the slot (4).

8. The lithium ion battery case of claim 1, further comprising: a battery clamping seat (11), a battery groove (13) and a protection mechanism which are arranged on the inner bottom wall of the battery shell (1).

9. The lithium ion battery shell according to claim 8, wherein the protection mechanism is provided with springs (14), the springs (14) are arranged on the inner side wall of the battery shell (1), the springs (14) are arranged in a plurality of groups in a regular linear arrangement mode, and positioning plates (12) are arranged in the extending direction of the springs (14).