CN220753564U

CN220753564U - Polymer lithium battery

Info

Publication number: CN220753564U
Application number: CN202322451173.2U
Authority: CN
Inventors: 陈强
Original assignee: Shenzhen Alq Technology Co ltd
Current assignee: Shenzhen Alq Technology Co ltd
Priority date: 2023-09-11
Filing date: 2023-09-11
Publication date: 2024-04-09
Anticipated expiration: 2033-09-11

Abstract

The utility model relates to the field of power batteries, in particular to a polymer lithium battery. The solar cell comprises a cell shell, wherein the cell shell is of an L-shaped structure, a cavity is formed in the cell shell, and a heat dissipation assembly is paved on the inner wall of the cavity and is fixedly connected with a plurality of ribs which are uniformly distributed; the ribs are fixedly connected with the heat dissipation assembly; a refrigerator is fixedly arranged on the battery shell, and the output end of the refrigerator is fixedly connected with the heat radiation component; a charging and discharging interface is fixedly arranged on the battery shell, and a battery body and a battery core are fixedly arranged in a cavity of the battery shell; the charge-discharge interface, the battery body and the refrigerator are all electrically connected with the battery core. The utility model is provided with the ribs, the ribs are fixedly connected with the battery body, heat of the battery body is transmitted to the heat radiating component, and the heat radiating component is continuously output at low temperature by the refrigerator, so that the heat is rapidly radiated and the battery body is protected.

Description

Polymer lithium battery

Technical Field

The utility model relates to the field of power batteries, in particular to a polymer lithium battery.

Background

The power battery is a power source for providing power for tools, and is a storage battery for providing power for electric automobiles, electric trains, electric bicycles and golf carts. The power battery is a core component of a new energy automobile, is also an important direction of energy transformation in the future, is mainly different from a starting battery used for starting an automobile engine, and is mainly a valve port sealed lead-acid battery, an open tubular lead-acid battery and a lithium iron phosphate battery.

The utility model application with the bulletin number of CN211719651U discloses a high-protection new energy battery through searching; including battery main part, protection component, damping spring and sponge obturator, the outside of battery main part is equipped with protection component, and protection component includes protection casing and base, and base fixed connection is in the bottom of battery main part, and the protection casing is connected in the outside of battery main part through the mode of cup jointing, the bottom fixed connection base of protection casing.

The utility model application with the bulletin number of CN218677366U discloses a battery cell, a battery and electronic equipment, wherein the battery cell comprises a first part and a second part, a target angle is formed between the first part and the second part, a groove is formed in the corner part of the first part and the corner part of the second part, and colloid in a solidification state is filled in the groove.

Among the above-mentioned technical scheme, the battery body outside is not wrapped up by the sponge or is covered by the colloid, and both do not possess good heat dispersion, because power battery can produce the heat in the in-process of using to if take place unexpected heat that produces in the twinkling of an eye is bigger, so need carry out timely heat dissipation to power battery, prevent the conflagration when guaranteeing power battery normal operating.

Disclosure of Invention

In order to solve the problems in the background technology, the utility model provides a polymer lithium battery.

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

the polymer lithium battery comprises a battery shell, wherein the battery shell is of an L-shaped structure, a cavity is formed in the battery shell, and a heat dissipation assembly is paved on the inner wall of the cavity and fixedly connected with a plurality of ribs which are uniformly distributed; the ribs are fixedly connected with the heat dissipation assembly; a refrigerator is fixedly arranged on the battery shell, and the output end of the refrigerator is fixedly connected with the heat radiation component; the battery shell is fixedly provided with a charge-discharge interface, and a battery body and a battery core are fixedly arranged in a cavity of the battery shell; the charging and discharging interface, the battery body and the refrigerator are all electrically connected with the battery core.

Preferably, the heat dissipation assembly comprises a liquid cooling pipe which is uniformly paved on the inner wall of the cavity in the battery shell, and the liquid cooling pipe is fixedly connected with the rib; the liquid cooling pipe is fixedly connected with the output end of the refrigerator, and the inside of the liquid cooling pipe is filled with cooling liquid.

Preferably, the liquid cooling pipe is made of a heat conducting material, and the cooling liquid has good heat conducting performance.

Preferably, the heat dissipation assembly comprises a heat conduction pipe and a heat conduction plate, and the heat conduction pipe and the heat conduction plate are fixedly connected; the heat conducting pipe is fixedly connected with the output end of the refrigerator, and is uniformly paved on the inner wall of the cavity in the battery shell; the heat conducting plate is fixedly connected with the rib and the battery body.

Preferably, the heat conductive pipe and the heat conductive plate are both made of a heat conductive material.

Preferably, the cavity inside the battery case is L-shaped.

Preferably, the ribs are fixedly connected with the battery body, and the ribs are made of heat conducting materials.

Preferably, a lifting groove is formed in the battery shell, and a handle is fixedly connected in the lifting groove.

Compared with the prior art, the utility model has the following beneficial effects:

firstly, the ribs are arranged, the ribs are fixedly connected with the battery body and the heat dissipation components, the ribs have heat conductivity, and heat generated by the battery body can be directly transferred to the heat dissipation components through the ribs, so that the transfer efficiency is high, and the heat dissipation effect is good; meanwhile, the ribs can play a certain role in protecting the battery body and the heat dissipation assembly.

And secondly, a refrigerator is arranged, the refrigerator continuously outputs low temperature to the heat dissipation assembly, so that the heat dissipation assembly continuously absorbs heat generated by the battery cell and the battery body, and the continuous heat dissipation is achieved, and the heat dissipation effect is good.

Thirdly, set up the radiator unit, radiator unit evenly lays around the battery body, can effectively dispel the heat again can play certain guard action to the battery body.

Drawings

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

FIG. 2 is a schematic diagram of an embodiment of the utility model in semi-cutaway section;

FIG. 3 is a schematic diagram of a second half cross-sectional view of an embodiment of the present utility model;

FIG. 4 is a schematic partial cross-sectional view of a second embodiment of the present utility model;

in the figure: 1. a battery case; 2. a refrigerator; 3. a charge-discharge interface; 4. a handle; 5. lifting a groove; 6. a rib; 7. a liquid-cooled tube; 8. a heat conduction pipe; 9. a heat conducting plate.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it will be apparent that the described embodiments are only some, but not all, embodiments of the utility model; 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.

A polymer lithium battery as described in figures 1-4.

Example 1

A polymer lithium battery comprises a battery shell 1, wherein the battery shell 1 is of an L-shaped structure and is divided into a short shell and a long shell. The left end of the short shell is provided with a rectangular lifting groove 5, and the bottom of the lifting groove 5 is fixedly connected with a handle 4, so that the whole battery body is conveniently lifted. The front end of the short shell is fixedly connected with a charge-discharge interface 3 for charge and discharge of the battery body. The right end of the long shell is fixedly connected with the refrigerator 2.

The refrigerator 2 is a semiconductor refrigerator in the prior art, and the semiconductor refrigerator can utilize the thermoelectric effect of a semiconductor to prepare cold.

The inside of battery case 1 digs establishes with battery case 1 assorted L shape cavity, fixedly connected with a plurality of arriss 6 on the vertical inner wall of cavity, and arriss 6 is the rectangle piece that is vertical placing. A plurality of ribs 6 are uniformly distributed on the vertical inner wall of the cavity. And the inner wall of the cavity is uniformly paved with heat radiation components which are fixedly connected with the output end of the refrigerator 2 and used for continuously radiating heat. The ribs 6 are fixedly connected with the heat dissipation assembly, protect the heat dissipation assembly while fixing the same, and conduct heat.

The ribs 6 are made of copper or graphite material as in the prior art.

The cavity in the battery case 1 is divided into a short cavity and a long cavity. The short cavity is internally and fixedly connected with a battery core, and the battery core is electrically connected with the battery body and the charge-discharge interface 3 and is electrically connected with the refrigerator 2 for controlling the whole circuit. The long cavity is internally and fixedly connected with a battery body, the battery body is fixedly connected with the ribs 6, and the ribs 6 protect the battery body and conduct heat.

The heat dissipation assembly comprises a liquid cooling pipe 7, wherein the liquid cooling pipe 7 is filled with cooling liquid, and the cooling liquid is made of fluoridized liquid in the prior art. The liquid cooling pipe 7 is fixedly connected with the output end of the refrigerator 2, so that the cooling liquid in the liquid cooling pipe 7 is always at a lower temperature, and heat is absorbed in time to dissipate heat. The liquid cooling pipes 7 are uniformly paved on the vertical side wall of the cavity inside the battery shell 1 to form a cooling frame with an L-shaped structure. The liquid cooling pipe 7 is fixedly connected with the rib 6.

Working principle of example 1:

when the battery is used, the charge-discharge interface 3 is connected with a circuit, and the refrigerator 2 is started due to the electric connection with the battery core. Under the action of current or other external factors, the battery cell and the battery body generate a large amount of heat, the temperature inside the battery shell 1 rises, and the temperature of the battery cell and the battery body rises.

The refrigerator 2 reduces the temperature of the heat dissipation component, the temperature of the heat dissipation component is continuously located at a lower level, and heat is absorbed by the heat dissipation component, so that the low temperature inside the battery shell 1 is continuously maintained, and meanwhile, the temperature of the battery core and the temperature of the battery body are prevented from continuously rising.

The heat dissipation principle of the heat dissipation component is that the output end of the refrigerator 2 acts on the cooling liquid in the liquid cooling pipe 7, and the temperature of the cooling liquid is in a low-temperature state. Because a large amount of heat is emitted by the battery body and the battery core, the temperature of the cooling liquid in the liquid cooling pipe 7 is very low, so that the emitted heat is transferred to the cooling liquid through the ribs 6 and the liquid cooling pipe 7, and the cooling liquid absorbs the heat. The refrigerator 2 continuously maintains the cooling liquid in the liquid cooling pipe 7 at a constant low temperature. Thereby lowering the temperature in the cavity of the battery case 1 and lowering the temperature of the battery body and the battery cell itself.

Example 2

A polymer lithium battery is different from embodiment 1 in that a heat dissipating assembly includes a heat conductive pipe 8 and a heat conductive plate 9. The heat conducting pipe 8 and the heat conducting plate 9 are fixedly connected, and the heat conducting pipe 8 and the heat conducting plate 9 have good heat conducting performance and are made of copper or graphite. The heat conducting pipes 8 are uniformly paved on the upper and lower inner walls of the inner cavity of the battery shell 1 to form two parallel L-shaped heat conducting passages. The heat conducting pipes 8 on the upper side and the lower side are fixedly connected with the output end of the refrigerator 2 and are used for timely radiating out heat absorbed by the heat conducting pipes 8 and keeping the lower temperature inside the battery shell 1.

The upper end and the lower end of the cavity in the battery shell 1 are fixedly connected with a L-shaped heat conducting plate 9, and the heat conducting plate 9 is positioned on one side of the heat conducting pipe 8, which is close to the battery body. The heat-conducting plate 9 is fixedly connected with the vertical side wall of the cavity inside the battery shell 1 and the rib 6. The heat conducting plate 9 is in contact and fixedly connected with the battery body and is used for conducting heat generated by the battery body and supporting and protecting the battery body.

Working principle of example 2:

the working principle is different from that of embodiment 1 in that the heat dissipation principle of the heat dissipation assembly is different, the output end of the refrigerator 2 acts on the copper heat conduction pipe 8, the temperature of the heat conduction pipe 8 is in a low temperature state, and the temperature of the heat conduction plate 9 is in a constant low temperature state because the heat conduction pipe 8 is fixedly connected with the heat conduction plate 9. Because a large amount of heat has all been given out to battery body and electric core, heat can transmit for heat pipe 8 and heat conduction board 9, and heat pipe 8 and heat conduction board 9 absorb heat, and refrigerator 2 lasts the output low temperature on heat pipe 8 to reduce the temperature in the cavity of battery case 1, and the temperature of battery body and electric core itself.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The polymer lithium battery comprises a battery shell (1), and is characterized in that the battery shell (1) is of an L-shaped structure, a cavity is formed in the battery shell (1), and a heat dissipation assembly is paved on the inner wall of the cavity and is fixedly connected with a plurality of ribs (6) which are uniformly distributed; the ribs (6) are fixedly connected with the heat dissipation assembly; a refrigerator (2) is fixedly arranged on the battery shell (1), and the output end of the refrigerator (2) is fixedly connected with the heat radiation component; a charging and discharging interface (3) is fixedly arranged on the battery shell (1), and a battery body and a battery core are fixedly arranged in a cavity of the battery shell (1); the charging and discharging interface (3), the battery body and the refrigerator (2) are all electrically connected with the battery core.

2. The polymer lithium battery according to claim 1, wherein the heat dissipation assembly comprises a liquid cooling pipe (7), the liquid cooling pipe (7) is uniformly paved on the inner wall of the internal cavity of the battery shell (1), and the liquid cooling pipe (7) is fixedly connected with the ribs (6); the liquid cooling pipe (7) is fixedly connected with the output end of the refrigerator (2), and cooling liquid is filled in the liquid cooling pipe (7).

3. A polymer lithium battery according to claim 2, characterized in that the liquid cooling tube (7) is made of a heat conducting material, the cooling liquid absorbing heat.

4. The polymer lithium battery according to claim 1, wherein the heat dissipation assembly comprises a heat conduction pipe (8) and a heat conduction plate (9), and the heat conduction pipe (8) and the heat conduction plate (9) are fixedly connected; the heat conducting pipe (8) is fixedly connected with the output end of the refrigerator (2), and the heat conducting pipe (8) is uniformly paved on the inner wall of the cavity in the battery shell (1); the heat conducting plate (9) is fixedly connected with the rib (6) and the battery body.

5. A polymer lithium battery according to claim 4, characterized in that the heat conducting tube (8) and the heat conducting plate (9) are both made of a heat conducting material.

6. A polymer lithium battery according to claim 1, characterized in that the cavity inside the battery housing (1) is L-shaped.

7. A polymer lithium battery according to claim 1, characterized in that the ribs (6) are fixedly connected to the battery body, the ribs (6) being made of a heat conducting material.

8. The polymer lithium battery according to claim 1, wherein the battery shell (1) is provided with a lifting groove (5), and a handle (4) is fixedly connected in the lifting groove (5).