CN214013041U

CN214013041U - Lithium battery with shell composite cooling pipeline

Info

Publication number: CN214013041U
Application number: CN202022170196.2U
Authority: CN
Inventors: 赵金宝; 王国伟; 樊鹏飞
Original assignee: Suzhou Fanglin Science And Technology Co ltd
Current assignee: Suzhou Fanglin Science And Technology Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-08-20
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses a lithium cell with compound cooling pipeline of shell, wherein, the lithium cell includes battery case and the battery subject who encapsulates in battery case, battery subject has an anode end and a cathode end, anode end and cathode end stretch out battery case, a serial communication port, battery case includes first casing and second casing, the second casing is compound at least on one of them shell face outer wall of first casing except that the shell face at anode end and cathode end place, be equipped with the cooling runner between first casing and the second casing, the cooling runner is formed by the recess on the surface wall of first casing or one of second casing at least, the second casing is equipped with the water inlet in the one end of cooling runner, and the other end is equipped with the delivery port. The utility model discloses the lithium cell need not the equipment installation liquid cooling heating panel, convenient to use, and is with low costs, the security performance is good.

Description

Lithium battery with shell composite cooling pipeline

Technical Field

The utility model relates to a lithium cell technical field, concretely relates to lithium cell with compound cooling pipeline of shell.

Background

Under the large backgrounds of energy restriction, environmental pollution and the like, the government of China takes the development of new energy automobiles as a major measure for solving the problems of energy and environment and realizing sustainable development, and various automobile production enterprises also take the new energy automobiles as an important strategic direction for seizing the high-point of the future automobile industry. With the development of new energy electric vehicles, the breakthrough of battery technology has become one of the important reasons for limiting the large-scale marketing of electric vehicles, the capacity and safety of batteries remain to be breakthrough, the higher the endurance mileage is, the higher the required battery capacity is, the higher the heating power during working is, the hidden danger is brought to the safe use of the batteries, and therefore, how to quickly take away the heat of the batteries is particularly important.

At present, battery cooling mainly adopts two forms of wind cooling and liquid cooling, and the cooling effect of the liquid cooling is better. And among the prior art battery liquid cooling heat dissipation is through regarding liquid cooling heating panel as the subassembly installation in battery or group battery outside, and this kind of mode occupation space is big, and with high costs, and the radiating effect is also not ideal.

SUMMERY OF THE UTILITY MODEL

In view of the technical defect who mentions in the background art, the utility model provides a lithium cell with shell composite cooling pipeline has reduced the radiating cost of battery, has improved radiating effect and life.

In order to achieve the above technical effect, the utility model discloses a technical scheme is:

the utility model provides a lithium cell with compound cooling pipeline of shell, includes battery case and the battery main part of encapsulation in battery case, battery main part has an anode end and a negative pole end, anode end and negative pole end stretch out battery case, a serial communication port, battery case includes first casing and second casing, the second casing is compound at least on one of them shell face outer wall of first casing except that the shell face that has anode end and negative pole end place, be equipped with the cooling runner between first casing and the second casing, the cooling runner is formed by the recess on the surface wall of first casing or one of second casing at least, the second casing is equipped with the water inlet in the one end of cooling runner, and the other end is equipped with the delivery port.

Furthermore, the outer wall of the shell surface of the first shell is a plane, and the cooling flow channel is arranged on the inner wall of the second shell.

Furthermore, the first shell is compounded with second shells on the outer walls of other surfaces except the shell surface where the anode end and the cathode end are located, and each second shell is provided with a cooling flow channel, a water inlet and a water outlet.

Further, the cooling flow channel is one or more of a parallel flow channel, a U-shaped flow channel and an S-shaped flow channel.

Furthermore, the anode end and the cathode end are located at two ends of the top surface of the first shell, the outer walls of the other surfaces of the first shell are compounded with second shells, the front surfaces and one side surfaces of the second shells are provided with U-shaped flow channels, the back surfaces of the first shells are provided with S-shaped flow channels, and the bottom surfaces and the other side surfaces of the first shells are provided with parallel flow channels.

Furthermore, the first shell is an aluminum-plastic film shell or a metal shell, and the second shell is a metal shell, an aluminum-plastic film shell, a plastic shell or other materials.

A preparation process of a lithium battery with a shell composite cooling pipeline is characterized by comprising the following process steps:

s1, respectively processing a battery main body, a first shell and a second shell;

s2, the battery main body is arranged in the shell from the shell opening of the first shell, and the shell cover of the first shell is sealed at the shell opening;

s3, cleaning the surface of the first shell and the surface of the second shell of the packaged battery main body;

s4, pre-fixing adhesive glue on the periphery of the surface of the first shell, which needs to be compounded with the second shell, or the periphery of the inner wall of the second shell and positioned on the outer side of the cooling flow channel;

s5, preliminarily compounding the second shell on the corresponding surface of the first shell to form a combined body;

s6, placing the combined body into a mold, then placing the combined body into a temperature-controllable device, controlling the temperature of the device, keeping the temperature for a certain time, and taking out the combined body after the bonding glue is solidified to form a final finished product.

Further, in step S6, the combined body placed in the mold has a certain pressure in a direction perpendicular to the compound surface of the first shell and the second shell, so as to ensure the sealing property and the firmness after the first shell and the second shell are combined.

Compared with the prior art, the beneficial effects of the utility model are that: through set up the cooling runner between first casing and second casing, the direct compound second casing of first casing outer wall makes it to form a battery case that has the cooling runner whole to reduce area occupied, it is more convenient to install, and the cost is reduced has also improved the cooling effect simultaneously.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments, and it is obvious that the described embodiments are some embodiments, not all embodiments of the present invention.

Drawings

Fig. 1 is an exploded view of a lithium battery of the present invention;

fig. 2 is an exploded view of the lithium battery of the present invention in another direction;

fig. 3 is the overall structure diagram of the lithium battery of the present invention.

Detailed Description

A lithium battery with a composite cooling circuit for a housing includes a battery housing and a battery body 1 enclosed in the battery housing. The battery shell comprises a first shell 2 and a second shell 3, wherein the first shell 2 can be a metal shell or a plastic shell, and the second shell 3 is a metal shell. The battery main body 1 has an anode terminal 11 and a cathode terminal 12, and the anode terminal 11 and the cathode terminal 12 are respectively located at both ends of the top surface of the first case 2 and protrude out of the first case 2. The second shell 3 is at least compounded on one of the shell surfaces of the first shell 2 except the top surface, a cooling flow channel 31 is arranged between the first shell 2 and the second shell 3, the cooling flow channel 31 is at least formed by a groove on the surface wall of one of the first shell 2 or the second shell 3, one end of the cooling flow channel 31 of the second shell 3 is provided with a water inlet 32, the other end of the cooling flow channel 31 is provided with a water outlet 33, and the cooling flow channel 31 is one or more of a parallel flow channel, a U-shaped flow channel and an S-shaped flow channel.

Preferably, the outer wall of the shell surface of the first casing 2 is a flat surface, and the cooling flow path 31 is provided on the inner wall of the second casing 3. And the first shell 2 is compounded with the second shells 3 on other outer walls except the top surface thereof, and each second shell 3 is provided with a cooling flow passage 31, a water inlet 32 and a water outlet 33. The second housing 3 has U-shaped flow channels on the front and one side of the first housing 2, S-shaped flow channels on the back of the first housing 2, and parallel flow channels on the bottom and the other side of the first housing 2.

s1, respectively processing a battery main body, a first shell 2 and a second shell 3;

s2, the battery main body is arranged in the shell from the shell opening of the first shell 2, and the shell cover of the first shell 2 is sealed at the shell opening;

s3, cleaning the surface of the first shell 2 and the surface of the second shell 3 which are packaged with the battery main body;

s4, pre-fixing adhesive glue on the periphery of the surface of the first shell 2 needing to be compounded with the second shell 3 or the periphery of the inner wall of the second shell 3 and positioned on the outer side of the cooling flow channel 31;

s5, preliminarily compounding the second shell 3 on the corresponding surface of the first shell 2 to form a combined body;

s6, placing the combined body into a mold, then placing the combined body into a temperature-controllable device, controlling the temperature of the device, and keeping the temperature for a certain time to solidify the adhesive to form a finished product. The combined body placed in the mold has a certain pressure in the vertical direction of the composite surface of the first shell 2 and the second shell 3, so as to ensure the sealing property and firmness after the first shell 2 and the second shell 3 are combined.

Compared with the prior art, the utility model discloses a set up the cooling runner between first casing and second casing, the direct compound second casing of first casing outer wall makes it to form a battery case that has the cooling runner whole to need not additionally to install the liquid cooling heating panel, reduced area, it is more convenient to use, and is with low costs, has also improved the cooling effect of battery and the security of battery work simultaneously, long service life.

The present invention is not limited to the above specific embodiments, and for those skilled in the art, the above conception can be used without any creative work, and all the changes made fall within the protection scope of the present invention.

Claims

1. The utility model provides a lithium cell with compound cooling pipeline of shell, includes battery case and the battery main part of encapsulation in battery case, battery main part has an anode end and a negative pole end, anode end and negative pole end stretch out battery case, a serial communication port, battery case includes first casing and second casing, the second casing is compound at least on one of them shell face outer wall of first casing except that the shell face that has anode end and negative pole end place, be equipped with the cooling runner between first casing and the second casing, the cooling runner is formed by the recess on the surface wall of first casing or one of second casing at least, the second casing is equipped with the water inlet in the one end of cooling runner, and the other end is equipped with the delivery port.

2. The lithium battery with the composite cooling pipeline of the shell as claimed in claim 1, wherein the outer wall of the shell surface of the first shell is a plane, and the cooling flow channel is arranged on the inner wall of the second shell.

3. The lithium battery with a composite cooling pipe shell as claimed in claim 2, wherein the first shell is compounded with second shells on the outer walls of the other surfaces except the shell surface where the anode end and the cathode end are located, and each second shell is provided with a cooling flow passage, a water inlet and a water outlet.

4. The lithium battery with a shell composite cooling pipeline as claimed in claim 3, wherein the cooling flow channel is one or more of a parallel flow channel, a U-shaped flow channel and an S-shaped flow channel.

5. The lithium battery with the composite cooling pipeline shell as claimed in claim 1, wherein the first shell is an aluminum-plastic film shell or a metal shell, and the second shell is a metal shell, an aluminum-plastic film shell or a plastic shell.