CN219591546U - Shell structure of lithium battery - Google Patents

Abstract

The utility model discloses a shell structure of a lithium battery, which comprises a first fixed cover and a second fixed cover, wherein an outer shell, a middle shell and an inner shell are fixedly arranged on the outer surface of the top end of the first fixed cover, the middle shell and the inner shell are mutually far away, four through grooves are formed in the outer surface of the middle shell, connecting rods are fixedly arranged in the four through grooves, an arc-shaped groove is formed in the top end of each connecting rod, a cavity is formed in the inner wall of each fixed groove, a second spring is arranged in the inner wall cavity of each fixed groove, one end of each second spring is connected with a telescopic rod, and when one end of each telescopic rod is in an arc shape and is connected with the corresponding connecting rod through a connecting pin, the telescopic rod is clamped with the corresponding positioning groove through the contractibility of the second spring, and the connecting pin and the connecting rods can be quickly connected together.

Description

Shell structure of lithium battery

Technical Field

The utility model relates to the technical field of lithium battery shells, in particular to a shell structure of a lithium battery.

Background

The lithium battery is a rechargeable battery, is generally used for portable electronic equipment, and the lithium battery shell is an important component of the lithium battery and is mainly used for protecting battery cores and electrolyte inside the lithium battery, most of the lithium battery shells are disposable and cannot be detached and replaced at present, and the structure of the existing lithium battery shell is simpler, so that the reliability of the battery is reduced.

Disclosure of Invention

Object of the utility model

In view of the above, the present utility model is directed to a housing structure of a lithium battery, which solves the above-mentioned problems.

(II) technical scheme

The utility model provides a shell structure of lithium cell, includes first fixed cover and second fixed cover, the top surface fixed mounting of first fixed cover has outer casing, middle level casing and inlayer casing, and keeps away from each other between middle level casing and the inlayer casing, four logical grooves have been seted up to the surface of middle level casing, and all fixed mounting has the connecting rod in four logical grooves, the arc recess has been seted up on the top of connecting rod, and the constant head tank has been seted up on the arc recess inner wall both sides of connecting rod, the second block groove has been seted up to the connecting rod surface, and the top fixed mounting of connecting rod has the second magnet, the bottom surface fixed mounting of second fixed cover has four connecting pins, and the fixed slot has all been seted up to four connecting pin surface both sides, the cavity has been seted up to the inner wall of fixed slot, and installs the second spring in the inner wall cavity of fixed slot, the one end of second spring is connected with the telescopic link, and the one end of telescopic link is circular-arc.

Preferably, the bottom end of the connecting pin is fixedly provided with a first magnet.

Preferably, the outer surface of the bottom end of the second fixed cover is provided with four first clamping grooves.

Preferably, the outer surface of the outer shell and the outer surface of the second fixed cover are connected with a first spring, and one end of the first spring is connected with a supporting plate.

Preferably, a plurality of connecting blocks are connected in the inner wall of the middle-layer shell, and one end of each connecting block is connected with the inner-layer shell.

Preferably, the inner shell is made of stainless steel corrosion-resistant material.

Preferably, the middle layer shell is made of polyimide polymer materials.

Preferably, the outer shell is made of polycarbonate polymer materials.

From the above technical scheme, the utility model has the following beneficial effects:

when being connected through connecting pin and connecting rod, through the contractility of second spring for telescopic link and constant head tank block make the connecting pin link together that connecting rod can be quick, also conveniently dismantle simultaneously, thereby can repetitious usage, the convenient battery that changes.

The inner shell and the middle shell are connected together through the connecting blocks, so that the structural strength between the inner shell and the middle shell is improved, an integral structure is formed, the strength and the rigidity of the integral structure can be improved, and the vibration resistance of the structure is improved.

Drawings

FIG. 1 is a schematic view of the internal perspective structure of the present utility model;

FIG. 2 is a schematic perspective view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

FIG. 4 is a schematic view of a second cover structure of the present utility model;

FIG. 5 is a schematic view of the internal components of the present utility model.

Fig. 6 is an enlarged schematic view of fig. 4 at a in accordance with the present utility model.

Fig. 7 is an enlarged schematic view of fig. 5B in accordance with the present utility model.

In the figure: 1. an outer shell; 2. a first fixed cover; 3. a second fixed cover; 4. a middle layer shell; 5. an inner shell; 6. a connecting block; 7. a connecting rod; 9. a butt plate; 911. a first spring; 311. a first engagement groove; 312. a connecting pin; 313. a fixing groove; 314. a telescopic rod; 315. a first magnet; 711. a second engagement groove; 712. a positioning groove; 713. and a second magnet.

Detailed Description

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, the same or similar reference numerals indicate the same or similar parts and features. The drawings merely schematically illustrate the concepts and principles of embodiments of the disclosure and do not necessarily illustrate the specific dimensions and proportions of the various embodiments of the disclosure. Specific details or structures may be shown in exaggerated form in particular figures to illustrate related details or structures of embodiments of the present disclosure.

Referring to fig. 1-7, an embodiment of the present utility model is provided:

the utility model provides a shell structure of lithium cell, including first fixed cover 2 and the fixed cover 3 of second, the top surface fixed mounting of first fixed cover 2 has outer casing 1, middle level casing 4 and inlayer casing 5, and keep away from each other between middle level casing 4 and the inlayer casing 5, four logical grooves have been seted up to the surface of middle level casing 4, and all fixed mounting has connecting rod 7 in four logical grooves, the arc recess has been seted up on the top of connecting rod 7, and the constant head tank 712 has been seted up to the arc recess inner wall both sides of connecting rod 7, second block groove 711 has been seted up to the connecting rod 7 surface, and the top fixed mounting of connecting rod 7 has the second magnet 713, the bottom surface fixed mounting of second fixed cover 3 has four connecting pins 312, and the fixed slot 313 has all been seted up to four connecting pin 312 surface both sides, the cavity has been seted up to the inner wall of fixed slot 313, and install the second spring in the inner wall cavity of fixed slot 313, the one end of second spring is connected with telescopic link 314, and the one end of telescopic link 314 is circular arc, through the surface with the one end of second fixed cover 3 block at outer casing 1, and four connecting pins 7 and the connecting pin 314 have played the effect to the second connecting rod 314 when the second connecting rod is connected to the arc recess, the second joint between the top surface and the fixed slot 315, thereby the fixed effect is played in the fixed slot is connected to the second connecting rod with the second connecting rod 315.

Further, the bottom end of the connecting pin 312 is fixedly provided with a first magnet 315, the outer surface of the bottom end of the second fixed cover 3 is provided with four first clamping grooves 311, and the first magnet 315 is in adsorption connection with the first clamping grooves 311, so that the third fixed connection function is achieved.

Further, the outer surface of the outer shell 1 and the outer surface of the second fixed cover 3 are connected with a first spring 911, one end of the first spring 911 is connected with a propping plate 9, the propping plate 9 and the battery are propped against each other, and the batteries with different lengths can be adapted through the action of the first spring 911, and meanwhile, the outer shell 1 and the second fixed cover 3 also play roles of anode and cathode.

Further, be connected with many connecting blocks 6 in the inner wall of middle level casing 4, and the one end of many connecting blocks 6 is connected with inlayer casing 5, and many connecting blocks 6 make inlayer casing 5 and middle level casing 4 link together to structural strength between inlayer casing 5 and the middle level casing 4 has been increased, and then a monolithic structure is formed, can increase the intensity and the rigidity of whole structure, improves the shock resistance of structure.

Further, the inner layer shell 5 is made of stainless steel corrosion-resistant material, and is used as a positive and negative electrode shell of the battery to wrap positive and negative electrode active materials.

Further, the middle layer shell 4 is made of polyimide polymer material and is used as an insulating layer of the inner layer shell for isolating the anode shell and the cathode shell and preventing short circuit and electric leakage.

Further, the outer shell 1 is made of polycarbonate polymer material, and serves as an external protection layer of the battery, so that the structural strength and impact resistance of the battery can be enhanced.

Working principle: the battery is put into the inner wall of the inner layer shell 5, the second fixing cover 3 is clamped on the outer surface of one end of the outer layer shell 1, in the clamping process, the connecting pin 312 is connected with one end of the abutting plate 9, when the connecting pin 312 moves to the bottom end of the radian groove at one end of the abutting plate 9, the telescopic rod 314 is embedded into the positioning groove 712 through the action of the second spring, meanwhile, the second magnet 713 is adsorbed with the first clamping groove 311, the second clamping groove 711 is adsorbed with the first magnet 315, the effect of fixed connection is achieved, and meanwhile, the abutting plate 9 can abut against the battery through the effect of the first spring 911.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. The utility model provides a shell structure of lithium cell, includes first fixed lid (2) and second fixed lid (3), its characterized in that: the utility model discloses a telescopic handle, including fixed lid, connecting rod, first fixed lid, second clamping groove (711), connecting rod, second connecting pin (713), connecting rod, second clamping groove (711), connecting rod, second clamping groove (712), connecting rod's (7) top surface fixed mounting has outer casing (1), middle casing (4) and inlayer casing (5), and keeps away from each other between middle casing (4) and the inlayer casing (5), four logical grooves have been seted up to the surface of middle casing (4), and all fixed mounting connecting rod (7) in four logical grooves, arc recess has been seted up on the top of connecting rod (7), and constant head tank (712) have been seted up to the arc recess inner wall both sides of connecting rod (7), second clamping groove (711) has been seted up to connecting rod's (7), and connecting rod's top fixed mounting has second magnet (713), the bottom surface fixed mounting of second fixed lid (3) has four connecting pins (312), and all set up fixed groove (313) on the surface both sides, the inner wall of fixed groove (313) has seted up the cavity, installs the second spring in the inner wall cavity, the one end of second spring is connected with telescopic rod (314).

2. The lithium battery case structure according to claim 1, wherein: the bottom end of the connecting pin (312) is fixedly provided with a first magnet (315).

3. The lithium battery case structure according to claim 1, wherein: four first clamping grooves (311) are formed in the outer surface of the bottom end of the second fixed cover (3).

4. The lithium battery case structure according to claim 1, wherein: the outer surfaces of the outer shell (1) and the second fixed cover (3) are connected with a first spring (911), and one end of the first spring (911) is connected with a supporting plate (9).

5. The lithium battery case structure according to claim 1, wherein: a plurality of connecting blocks (6) are connected in the inner wall of the middle-layer shell (4), and one end of each connecting block (6) is connected with an inner-layer shell (5).

6. The lithium battery case structure according to claim 1, wherein: the inner shell (5) is made of stainless steel corrosion-resistant materials.

7. The lithium battery case structure according to claim 1, wherein: the middle layer shell (4) is made of polyimide polymer materials.

8. The lithium battery case structure according to claim 1, wherein: the outer shell (1) is made of polycarbonate high polymer materials.