CN219497907U

CN219497907U - Sealing structure of cylindrical lithium battery

Info

Publication number: CN219497907U
Application number: CN202320525962.3U
Authority: CN
Inventors: 石浩
Original assignee: Huaibei Longfeng New Energy Technology Co ltd
Current assignee: Huaibei Longfeng New Energy Technology Co ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-08-08
Anticipated expiration: 2033-03-17

Abstract

The utility model discloses a sealing structure of a cylindrical lithium battery, and particularly relates to the field of lithium battery sealing. According to the cooling device, the cooling mechanism is arranged, so that the cooling device can cool the lithium battery in later use, a user can manually rotate the bottle cap, so that the bottle cap is rotated out of the liquid inlet, then the user can manually pour cooling liquid into the liquid storage tank through the liquid inlet, the user can manually rotate the bottle cap into the liquid inlet, then the user can manually press the pressing block, so that the connecting rod is driven to move, the piston is driven to move inwards, the cooling liquid is extruded into the connecting pipe, and the cooling liquid flows into the condenser pipe through the connecting pipe.

Description

Sealing structure of cylindrical lithium battery

Technical Field

The utility model relates to the field of lithium battery sealing, in particular to a sealing structure of a cylindrical lithium battery.

Background

Lithium batteries can be roughly divided into two types, namely a lithium metal battery and a lithium ion battery, wherein the lithium ion battery does not contain metallic lithium and can be charged, the lithium metal battery which is a fifth generation product of a rechargeable battery is born in 1996, and the safety, specific capacity, self-discharge rate and cost performance ratio of the lithium metal battery are superior to those of the lithium ion battery, and due to the limitation of high technical requirements of the lithium ion battery, only companies in a few countries are producing the lithium metal battery;

through searching, the prior patent (publication number: CN 210723107U) discloses a novel sealing structure of a cylindrical lithium battery. The lithium battery cell is characterized by comprising an outer shell, an inner shell arranged in the outer shell, a lithium battery cell arranged in the inner shell and a cover group arranged at the top end of the outer shell, wherein the lithium battery cell is formed by winding a positive plate, a negative plate and a diaphragm together, and the positive plate and the negative plate are provided with lugs; the inner shell is a cylinder with two through ends and is provided with a lifting cover group, and the shell wall of the inner shell is provided with holes which are convenient for the positive plate lugs or the negative plate lugs to penetrate out and be communicated with the outer shell in a direct contact way; the shell is a cylinder which is integrally formed and is provided with an opening at one end; the cover group is buckled and seals the opening end of the shell; the cover group comprises an upper cover with a boss and an insulating plastic sealing ring, and one end of the inner shell is propped against the plastic sealing ring. The cylindrical lithium battery sealing structure can effectively improve the available space in the battery and enable the performance of the battery to be higher. The inventors found that the following problems exist in the prior art in the process of implementing the present utility model:

when the sealing structure of the existing cylindrical lithium battery is used in the later period, the battery is sealed for a long time, so that the battery possibly expands, the temperature inside the battery is increased, the battery is possibly damaged, the service life of the lithium battery is shortened, and a cooling mechanism is not arranged for cooling the inside of the sealing structure of the lithium battery;

accordingly, a sealing structure of a cylindrical lithium battery has been proposed in view of the above problems.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present utility model provide a sealing structure of a cylindrical lithium battery to solve the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a seal structure of cylindrical lithium cell, includes the lower casing, the internally mounted of lower casing has cooling body, cooling body includes condenser pipe, connecting pipe, liquid storage pot, piston, connecting rod, presses movable block, inlet, bottle lid.

One end fixedly connected with connecting pipe of condenser pipe, the one end fixedly connected with reservoir of connecting pipe, the inside swing joint of reservoir has the piston, the one end fixedly connected with connecting rod of piston, the one end fixedly connected with of connecting rod presses the movable block, the inlet has been seted up to the one end of reservoir, the inlet has the bottle lid through threaded connection.

Preferably, the one end outer wall fixedly connected with limit button of lower casing, the front end outer wall fixedly connected with hinge of lower casing, the other end fixedly connected with of hinge goes up the casing, the one end outer wall fixedly connected with spacing post of last casing, one side inner wall fixedly connected with positive plate of lower casing, the opposite side inner wall fixedly connected with negative plate of lower casing.

Preferably, the rear end fixedly connected with coupling assembling of last casing, coupling assembling's front end fixedly connected with detection hole, coupling assembling's top fixedly connected with electric wire.

Preferably, one end of the electric wire is fixedly connected with a plug, the plug is inserted into one side of the front end of the temperature detector, and a switch is arranged in the middle of the temperature detector.

Preferably, the lower shell is connected with the limiting column through a limiting buckle, and the inner structure of the limiting buckle is matched with the outer structure of the limiting column.

Preferably, the condensation pipe is connected with the liquid storage tank through a connecting pipe, and the condensation pipe is fixedly connected to the inside of the lower shell.

Preferably, the piston is connected with the pressing block through a connecting rod, and the outer structure of the piston is matched with the inner structure of the liquid storage tank.

Preferably, the electric wire is connected with the temperature detector through a plug, and the upper shell is connected with the detection hole through a connecting component.

The utility model has the technical effects and advantages that:

1. compared with the prior art, this cylindrical lithium battery's seal structure is through setting up cooling body, can make the device when later stage uses, can carry out cooling treatment to lithium battery through cooling body, through the manual bottle lid that rotates of user, thereby rotate out the bottle lid from the inlet, the rethread user is manual pours the coolant liquid into the liquid storage pot through the inlet, the rethread user is manual rotates the bottle lid to the inlet in, the rethread user is manual presses the button piece, thereby drive the connecting rod and remove, thereby drive piston to inside remove, thereby squeeze the coolant liquid into the connecting pipe, flow into the condenser pipe through the connecting pipe.

2. Compared with the prior art, this cylindrical lithium battery's seal structure passes through coupling assembling, detection hole, electric wire, plug, temperature detector, mutually supporting between the switch, can make can carry out temperature detection to battery seal structure inside, through the manual rotation switch of user to detect the temperature through the detection hole on the coupling assembling to seal structure inside, make the temperature of detection transmit to on the screen on the temperature detector, thereby detect inside temperature.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic diagram of the front cross-sectional structure of the present utility model.

FIG. 3 is a schematic view of the cooling mechanism of the present utility model.

FIG. 4 is a schematic diagram of a temperature detector according to the present utility model.

The reference numerals are: 1. a lower housing; 2. a cooling mechanism; 201. a condensing tube; 202. a connecting pipe; 203. a liquid storage tank; 204. a piston; 205. a connecting rod; 206. a pressing block; 207. a liquid inlet; 208. a bottle cap; 3. a limit button; 4. a hinge; 5. an upper housing; 6. a limit column; 7. a positive plate; 8. a negative electrode sheet; 9. a connection assembly; 10. a detection hole; 11. an electric wire; 12. a plug; 13. a temperature detector; 14. and (3) a switch.

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.

Examples

The sealing structure of a cylindrical lithium battery as shown in fig. 3, which comprises a lower shell 1, wherein a cooling mechanism 2 is arranged in the lower shell 1, the cooling mechanism 2 comprises a condensation pipe 201, a connecting pipe 202, a liquid storage tank 203, a piston 204, a connecting rod 205, a pressing block 206, a liquid inlet 207 and a bottle cap 208, one end of the condensation pipe 201 is fixedly connected with the connecting pipe 202, one end of the connecting pipe 202 is fixedly connected with the liquid storage tank 203, the piston 204 is movably connected with the inside of the liquid storage tank 203, one end of the piston 204 is fixedly connected with the connecting rod 205, one end of the connecting rod 205 is fixedly connected with the pressing block 206, one end of the liquid storage tank 203 is provided with the liquid inlet 207, and the liquid inlet 207 is connected with the bottle cap 208 through threads.

Wherein: the bottle cap 208 is manually rotated by a user, so that the bottle cap 208 is rotated out of the liquid inlet 207, the cooling liquid is manually poured into the liquid storage tank 203 through the liquid inlet 207 by the user, the bottle cap 208 is manually screwed back onto the liquid inlet 207 by the user, the connecting rod 205 is driven to move towards the inside of the liquid storage tank 203 by manually pressing the pressing block 206 by the user, the piston 204 fixedly connected with the top of the connecting rod 205 is driven to move towards the inside, the cooling liquid inside the liquid storage tank 203 is extruded into the connecting pipe 202, and the cooling liquid flows into the condenser 201 by the connecting pipe 202, so that the temperature of a lithium battery in the lithium battery sealing structure is reduced.

Examples

On the basis of the first embodiment, the scheme in the first embodiment is further introduced in detail in combination with the following specific working modes, and the details are described below:

as shown in fig. 2, as a preferred embodiment; one end outer wall fixedly connected with spacing knot 3 of lower casing 1, the front end outer wall fixedly connected with hinge 4 of lower casing 1, the other end fixedly connected with of hinge 4 goes up casing 5, go up the one end outer wall fixedly connected with spacing post 6 of casing 5, one side inner wall fixedly connected with positive plate 7 of lower casing 1, the opposite side inner wall fixedly connected with negative plate 8 of lower casing 1, further, through placing the battery in lower casing 1, aim at positive plate 7 with the positive pole of battery, aim at negative plate 8 with the negative pole of battery, the manual forward end of rethread user rotates casing 5, thereby drive casing 5 and rotate on hinge 4, thereby insert spacing post 6 fixedly connected with on the casing 5 in spacing knot 3, thereby seal the battery.

As shown in fig. 4, as a preferred embodiment; the rear end fixedly connected with coupling assembling 9 of last casing 5, the front end fixedly connected with detection hole 10 of coupling assembling 9, the top fixedly connected with electric wire 11 of coupling assembling 9, further, carry out the detection of temperature to the battery in the lower casing 1 through the detection hole 10 on the coupling assembling 9.

As shown in fig. 4, as a preferred embodiment; one end of the electric wire 11 is fixedly connected with a plug 12, the plug 12 is inserted into one side of the front end of the temperature detector 13, a switch 14 is arranged in the middle of the temperature detector 13, and further, the temperature inside the battery sealing structure is detected, so that the temperature is transmitted to the temperature detector 13.

As shown in fig. 2, as a preferred embodiment; the lower shell 1 is connected with the limit post 6 through the limit buckle 3, and the internal structure of the limit buckle 3 is matched with the external structure of the limit post 6, and further, the limit post 6 fixedly connected with the upper shell 5 is inserted into the limit buckle 3, so that the battery is sealed.

As shown in fig. 3, as a preferred embodiment; the condenser 201 is connected to the liquid storage tank 203 through the connection pipe 202, and the condenser 201 is fixedly connected to the inside of the lower case 1, so that the cooling liquid in the liquid storage tank 203 is extruded into the connection pipe 202, and then flows into the condenser 201 through the connection pipe 202.

As shown in fig. 3, as a preferred embodiment; the piston 204 is connected with the pressing block 206 through the connecting rod 205, and the external structure of the piston 204 is matched with the internal structure of the liquid storage tank 203, so that the connecting rod 205 is driven to move towards the inside of the liquid storage tank 203, and the piston 204 fixedly connected with the top of the connecting rod 205 is driven to move towards the inside.

As shown in fig. 4, as a preferred embodiment; the electric wire 11 is connected with the temperature detector 13 through the plug 12, and the upper shell 5 is connected with the detection hole 10 through the connecting component 9, and further, the temperature of the battery in the lower shell 1 is detected through the detection hole 10 on the connecting component 9, and then the temperature is displayed on the temperature detector 13.

The working process of the utility model is as follows:

when the sealing structure of the cylindrical lithium battery is used in the later period, firstly, the device is placed in a lithium battery production factory, then the battery is placed in the lower shell 1, the positive electrode of the battery is aligned with the positive electrode plate 7, the negative electrode of the battery is aligned with the negative electrode plate 8, then the upper shell 5 is manually rotated towards the front end by a user, so that the upper shell 5 is driven to rotate on the hinge 4, the limit post 6 fixedly connected with the upper shell 5 is inserted into the limit button 3, so that the battery is sealed, then the switch 14 is manually rotated by the user, so that the temperature of the battery in the lower shell 1 is detected through the detection hole 10 on the connecting component 9, then the temperature is displayed on the temperature detector 13, when the temperature is too high, the bottle cap 208 is manually rotated by the user, thereby the bottle lid 208 is rotated out from the liquid inlet 207, the cooling liquid is poured into the liquid storage tank 203 through the liquid inlet 207 manually by a user, the bottle lid 208 is screwed back to the liquid inlet 207 manually by the user, the push block 206 is manually pushed by the user, the connecting rod 205 is driven to move towards the inside of the liquid storage tank 203, the piston 204 fixedly connected with the top of the connecting rod 205 is driven to move inwards, the cooling liquid in the liquid storage tank 203 is extruded into the connecting pipe 202, and then flows into the condenser pipe 201 through the connecting pipe 202, so that the cooling treatment is carried out on the lithium battery in the lithium battery sealing structure, namely the working process and the working principle of the device, and the model of the temperature detector 13 mentioned in the document is HAKKKO 192.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a seal structure of cylindrical lithium cell, includes casing (1), its characterized in that: the cooling mechanism (2) is arranged in the lower shell (1), and the cooling mechanism (2) comprises a condensation pipe (201), a connecting pipe (202), a liquid storage tank (203), a piston (204), a connecting rod (205), a pressing block (206), a liquid inlet (207) and a bottle cap (208);

one end fixedly connected with connecting pipe (202) of condenser pipe (201), one end fixedly connected with liquid storage pot (203) of connecting pipe (202), the inside swing joint of liquid storage pot (203) has piston (204), one end fixedly connected with connecting rod (205) of piston (204), one end fixedly connected with of connecting rod (205) presses movable block (206), inlet (207) have been seted up to one end of liquid storage pot (203), inlet (207) have bottle lid (208) through threaded connection.

2. The sealing structure of a cylindrical lithium battery according to claim 1, wherein: one end outer wall fixedly connected with limit button (3) of inferior valve body (1), the front end outer wall fixedly connected with hinge (4) of inferior valve body (1), the other end fixedly connected with of hinge (4) goes up casing (5), the one end outer wall fixedly connected with spacing post (6) of last casing (5), one side inner wall fixedly connected with positive plate (7) of inferior valve body (1), the opposite side inner wall fixedly connected with negative plate (8) of inferior valve body (1).

3. The sealing structure of a cylindrical lithium battery according to claim 2, wherein: the rear end fixedly connected with coupling assembling (9) of last casing (5), the front end fixedly connected with of coupling assembling (9) detects hole (10), the top fixedly connected with electric wire (11) of coupling assembling (9).

4. A sealing structure of a cylindrical lithium battery according to claim 3, wherein: one end of the electric wire (11) is fixedly connected with a plug (12), the plug (12) is inserted into one side of the front end of the temperature detector (13), and a switch (14) is arranged in the middle of the temperature detector (13).

5. The sealing structure of a cylindrical lithium battery according to claim 2, wherein: the lower shell (1) is connected with the limiting column (6) through the limiting buckle (3), and the inner structure of the limiting buckle (3) is matched with the outer structure of the limiting column (6).

6. The sealing structure of a cylindrical lithium battery according to claim 1, wherein: the condensing tube (201) is connected with the liquid storage tank (203) through a connecting tube (202), and the condensing tube (201) is fixedly connected to the inside of the lower shell (1).

7. The sealing structure of a cylindrical lithium battery according to claim 1, wherein: the piston (204) is connected with the pressing block (206) through a connecting rod (205), and the outer structure of the piston (204) is matched with the inner structure of the liquid storage tank (203).

8. The sealing structure of a cylindrical lithium battery according to claim 4, wherein: the electric wire (11) is connected with the temperature detector (13) through the plug (12), and the upper shell (5) is connected with the detection hole (10) through the connecting component (9).