CN216288644U - Battery module cooling system - Google Patents
Battery module cooling system Download PDFInfo
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- CN216288644U CN216288644U CN202122946796.8U CN202122946796U CN216288644U CN 216288644 U CN216288644 U CN 216288644U CN 202122946796 U CN202122946796 U CN 202122946796U CN 216288644 U CN216288644 U CN 216288644U
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- pipe
- liquid
- heat exchange
- tube
- battery module
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a battery module cooling system which comprises a liquid cooling plate, a liquid supply pipe, a liquid return pipe and a communicating pipe, wherein the liquid cooling plate is internally provided with a heat exchange pipe; the heat exchange tube is connected between the liquid supply tube and the liquid return tube; the communicating pipe is connected between the liquid supply pipe and the heat exchange pipe. According to the battery module cooling system disclosed by the utility model, the cooling liquid which does not exchange heat is converged into the heat exchange tube through the communicating tube and is mixed with the cooling liquid which is heated in the heat exchange tube, so that the temperature of the cooling liquid in the lower half section of the heat exchange tube can be reduced, the temperature difference between the liquid inlet and the liquid outlet of the heat exchange tube is reduced, the battery module can uniformly exchange heat at all positions, and the heat exchange effect is improved.
Description
Technical Field
The utility model relates to the technical field of battery module cooling, in particular to a battery module cooling system.
Background
The core part in the new energy automobile is a battery module. The battery module consists of a plurality of battery cores, and the performance of the battery cores is greatly influenced by temperature. The common heat dissipation modes of the battery module include air cooling and water cooling, the water cooling mode means heat dissipation through a water cooling plate, and the design scheme of a cooling unit in the water cooling plate determines the performance of a module cooling system, so that how to design the cooling unit in the water cooling plate is very critical to the design of the battery module cooling system.
The temperature difference between the liquid inlet and the liquid outlet of the existing water cooling plate is large, the temperature of the liquid outlet side of the heat exchange tube is obviously higher than that of the liquid inlet, and the heat exchange effect of the battery module close to the liquid outlet side is still to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery module cooling system with a good heat exchange effect.
The technical scheme of the utility model provides a battery module cooling system which comprises a liquid cooling plate, a liquid supply pipe, a liquid return pipe and a communicating pipe, wherein the liquid cooling plate is internally provided with a heat exchange pipe;
the heat exchange tube is connected between the liquid supply tube and the liquid return tube;
the communicating pipe is connected between the liquid supply pipe and the heat exchange pipe.
In one optional technical scheme, the communicating pipe is connected to the lower half section of the heat exchange pipe in the direction from the liquid inlet to the liquid outlet of the heat exchange pipe.
In one optional technical scheme, more than two heat exchange tubes are arranged in the liquid cooling plate at intervals;
the communicating pipe comprises a communicating pipe main pipe connected with the liquid supply pipe and more than two communicating pipe branch pipes connected with the communicating pipe main pipe;
each communicating pipe branch pipe is correspondingly connected with one heat exchange pipe.
In an optional technical solution, the liquid supply pipe includes a main liquid supply pipe and more than two branch liquid supply pipes connected to the main liquid supply pipe;
each liquid supply pipe branch pipe is correspondingly connected with one heat exchange pipe.
In one optional technical scheme, the communicating pipe main pipe is connected with the liquid supply pipe main pipe.
In one optional technical scheme, the liquid return pipe comprises a liquid return main pipe and more than two liquid return branch pipes connected with the liquid return main pipe;
each liquid return pipe branch pipe is correspondingly connected with one heat exchange pipe.
In an optional technical scheme, the liquid supply pipe and the liquid return pipe are located at the same end of the liquid cooling plate, and the heat exchange pipe is U-shaped.
In one optional technical scheme, the communicating pipe is connected with a U-shaped elbow of the heat exchange pipe.
In one optional technical scheme, a plurality of U-shaped heat exchange tubes are arranged in the liquid cooling plate at intervals along the width direction.
In an optional technical solution, a plurality of U-shaped heat exchange tubes are arranged at intervals along the length direction in the liquid cooling plate.
By adopting the technical scheme, the method has the following beneficial effects:
according to the battery module cooling system provided by the utility model, the cooling liquid which does not exchange heat is converged into the heat exchange tube through the communicating tube and is mixed with the cooling liquid which is heated in the heat exchange tube, so that the temperature of the cooling liquid in the lower half section of the heat exchange tube can be reduced, the temperature difference between the liquid inlet and the liquid outlet of the heat exchange tube is reduced, the battery module can uniformly exchange heat at all positions, and the heat exchange effect is improved.
Drawings
The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:
fig. 1 is a schematic view of a cooling system for a battery module according to a first embodiment of the present invention;
fig. 2 is a schematic connection diagram of a heat exchange pipe, a liquid supply pipe, and a communication pipe in the battery module cooling system shown in fig. 1;
fig. 3 is a schematic view of a cooling system for a battery module according to a second embodiment of the present invention;
fig. 4 is a schematic view illustrating connection of heat exchange pipes, liquid supply pipes, and communication pipes in the battery module cooling system shown in fig. 3.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1 to 4, a cooling system for a battery module according to an embodiment of the present invention includes a liquid cooling plate 1 having a heat exchange tube 2 therein, a liquid supply tube 3 connected to an end of the liquid cooling plate 1, a liquid return tube 4 connected to an end of the liquid cooling plate 1, and a communication tube 5 located outside the liquid cooling plate 1.
The heat exchange tube 2 is connected between the liquid supply tube 3 and the liquid return tube 4.
The connection pipe 5 is connected between the liquid supply pipe 3 and the heat exchange pipe 2.
The battery module cooling system provided by the utility model exchanges heat with the battery cell through the liquid cooling plate 1. The liquid cooling plate 1 is provided with a heat exchange pipe 2, and the heat exchange pipe 2 is arranged inside the liquid cooling plate 1. The liquid supply pipe 3 is connected to a cooling liquid supply apparatus to supply the cooling liquid into the heat exchange pipe 2. Water may be selected as the cooling fluid. The liquid return pipe 4 is connected with the cooling liquid recovery port to make the cooling liquid in the heat exchange pipe 2 flow back. The communicating pipe 5 is located outside the liquid cooling plate 1, and can be designed correspondingly according to the position of the battery cell without influencing the installation of the battery cell. The connection pipe 5 is connected between the liquid supply pipe 3 and the heat exchange pipe 2. Since the temperature of the coolant in the upper half of the heat exchange tube 2 itself is low, there is no need to collect new coolant, and preferably, the communication tube 5 is connected to the lower half of the heat exchange tube 2. The communicating pipe 5 is located outside the liquid cooling plate 1, wherein the circulating cooling liquid can not exchange heat with the liquid cooling plate 1, so that the temperature of the cooling liquid converged into the heat exchange pipe 2 is lower and basically consistent with the temperature of the liquid inlet of the heat exchange pipe 2. Coolant liquid and the heat transfer of liquid cooling plate 1 in the heat exchange tube 2, when reaching the liquid outlet department of communicating pipe 5, the temperature of coolant liquid in the heat exchange tube 2 is higher than the temperature of the coolant liquid that converges from communicating pipe 5, two strands of coolant liquid mix the back, can realize the coolant liquid cooling, although the temperature after mixing still is higher than the temperature of the inlet department of heat exchange tube 2, nevertheless the temperature has been showing and has been reduced, thereby the temperature of the coolant liquid in the liquid outlet of communicating pipe 5 and this section of liquid outlet of heat exchange tube 2 has been reduced, make the coolant liquid in this section also can carry out effective heat transfer with liquid cooling plate 1, the difference in temperature between inlet and the liquid outlet of heat exchange tube 2 has been reduced, be favorable to the even heat transfer in each department of battery module, the heat transfer effect has been promoted.
If the liquid supply pipe 3 and the liquid return pipe 4 are arranged at opposite ends of the liquid cooling plate 1, the heat exchange pipe 2 may be selected to be linear.
If the liquid supply pipe 3 and the liquid return pipe 4 are arranged at the same end of the liquid cooling plate 1, the heat exchange pipe 2 can be selected to be U-shaped.
In one embodiment, in order to prevent the coolant flowing from the connection pipe 5 from flowing back in the heat exchange pipe 2, a check valve may be installed in the heat exchange pipe 2 upstream of the liquid outlet of the connection pipe 5.
In one embodiment, the communicating tube 5 is connected to the lower half of the heat exchange tube 2 in a direction from the liquid inlet to the liquid outlet of the heat exchange tube 2. That is, the length of the heat exchange tube 2 between the liquid outlet of the communicating tube 5 and the liquid outlet of the heat exchange tube 2 is less than or equal to the length of the heat exchange tube 2 between the liquid outlet of the communicating tube 5 and the liquid inlet of the heat exchange tube 2, so that the temperature of the cooling liquid in the lower half section of the heat exchange tube 2 can be obviously reduced, and the heat exchange effect of the cooling liquid and the liquid cooling plate 1 in the lower half section can be improved.
In one embodiment, as shown in fig. 1 to 4, more than two heat exchange tubes 2 are arranged in the liquid cooling plate 1 at intervals.
The communication pipe 5 includes one communication pipe main 51 connected to the liquid supply pipe 3 and two or more communication pipe branch pipes 52 connected to the communication pipe main 51.
Each of the communication pipe branch pipes 52 is connected to one of the heat exchange pipes 2.
In this embodiment, in order to improve the heat exchange effect, the heat exchange area with the liquid cooling plate 1 is increased, and more than two heat exchange tubes 2 are arranged in the liquid cooling plate 1 at intervals. In order to simplify the structure of the communication pipe 5 and reduce the occupied external space, the communication pipe 5 is designed to include one communication pipe main 51 and two or more communication pipe branch pipes 52. One end of the communication pipe main pipe 51 is connected with the liquid supply pipe 3, more than two communication pipe branch pipes 52 are connected with the other end of the communication pipe main pipe 51, and each communication pipe branch pipe 52 is correspondingly connected with one heat exchange pipe 2.
In one embodiment, as shown in fig. 1-4, the supply tube 3 includes one supply tube main tube 31 and more than two supply tube branch tubes 32 connected to the supply tube main tube 31.
Each of the supply pipe branches 32 is connected to one of the heat exchange tubes 2.
In this embodiment, in order to conveniently dock with more than two heat exchange tubes 2, the liquid supply tube 3 is designed to include a main liquid supply tube 31 and more than two branch liquid supply tubes 32, the branch liquid supply tubes 32 are connected to the main liquid supply tube 31, and each branch liquid supply tube 32 docks with an inlet of one heat exchange tube 2.
In one embodiment, as shown in fig. 1-4, the main communication pipe 51 is connected to the main supply pipe 31 to ensure the flow rate of the cooling liquid in the communication pipe 5.
A three-way valve may be installed at the connection of the connection pipe 5 and the liquid supply pipe 3 as needed, and the flow rate of the coolant in each pipe may be controlled by the opening degree of the valve.
In one embodiment, as shown in fig. 1-4, the liquid return pipe 4 includes one liquid return main pipe 41 and more than two liquid return branch pipes 42 connected to the liquid return main pipe 41.
Each liquid return pipe branch pipe 42 is correspondingly connected with one heat exchange pipe 2.
In this embodiment, in order to conveniently dock with the heat exchange tubes 2 of more than two, the liquid return tube 4 is designed to include a liquid return tube main tube 41 and liquid return tube branch tubes 42 of more than two, the liquid return tube branch tubes 42 are connected with the liquid return tube main tube 41, and each liquid return tube branch tube 42 docks with the liquid outlet of one heat exchange tube 2.
In one embodiment, as shown in fig. 1-4, the liquid supply pipe 3 and the liquid return pipe 4 are located at the same end of the liquid cooling plate 1, and the heat exchange pipe 2 is U-shaped, so that the heat exchange area in the width direction of the liquid cooling plate 1 is increased.
In one embodiment, as shown in fig. 1-4, the communication pipe 5 is connected to the U-shaped elbow 21 of the heat exchange pipe 2, and the connection position of the communication pipe 5 and the heat exchange pipe 2 is substantially located at the lower half section of the heat exchange pipe 2, so that the utilization efficiency of the coolant in the communication pipe 5 is improved.
In one embodiment, as shown in fig. 1-2, a plurality of U-shaped heat exchange tubes 2 are arranged at intervals along the width direction in the liquid cooling plate 1, which meets the arrangement requirement of some types of liquid cooling plates 1.
In one embodiment, as shown in fig. 3 to 4, a plurality of U-shaped heat exchange tubes 2 are arranged at intervals along the length direction in the liquid cooling plate 1, which meets the arrangement requirements of other types of liquid cooling plates 1.
In summary, according to the battery module cooling system provided by the utility model, the cooling liquid which is not subjected to heat exchange is converged into the heat exchange tube 2 through the communicating tube 5, and is mixed with the cooling liquid which is heated in the heat exchange tube 2, so that the temperature of the cooling liquid in the lower half section of the heat exchange tube 2 can be reduced, the temperature difference between the liquid inlet and the liquid outlet of the heat exchange tube 2 is reduced, uniform heat exchange at each position of the battery module is facilitated, and the heat exchange effect is improved.
According to the needs, the above technical schemes can be combined to achieve the best technical effect.
The foregoing is considered as illustrative only of the principles and preferred embodiments of the utility model. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.
Claims (10)
1. A battery module cooling system is characterized by comprising a liquid cooling plate with a heat exchange tube inside, a liquid supply tube connected to the end of the liquid cooling plate, a liquid return tube connected to the end of the liquid cooling plate and a communicating tube positioned outside the liquid cooling plate;
the heat exchange tube is connected between the liquid supply tube and the liquid return tube;
the communicating pipe is connected between the liquid supply pipe and the heat exchange pipe.
2. The battery module cooling system according to claim 1, wherein the communication pipe is connected to the lower half section of the heat exchange pipe in a direction from the liquid inlet to the liquid outlet along the heat exchange pipe.
3. The battery module cooling system according to claim 1, wherein two or more of the heat exchange pipes are arranged at intervals in the liquid-cooled plate;
the communicating pipe comprises a communicating pipe main pipe connected with the liquid supply pipe and more than two communicating pipe branch pipes connected with the communicating pipe main pipe;
each communicating pipe branch pipe is correspondingly connected with one heat exchange pipe.
4. The battery module cooling system according to claim 3, wherein the liquid supply pipe includes one liquid supply main pipe and two or more liquid supply branch pipes connected to the liquid supply main pipe;
each liquid supply pipe branch pipe is correspondingly connected with one heat exchange pipe.
5. The battery module cooling system according to claim 4, wherein the communication pipe main pipe is connected to the liquid supply pipe main pipe.
6. The battery module cooling system according to claim 3, wherein the liquid return pipe comprises a liquid return main pipe and more than two liquid return branch pipes connected to the liquid return main pipe;
each liquid return pipe branch pipe is correspondingly connected with one heat exchange pipe.
7. The battery module cooling system according to claim 1, wherein the liquid supply pipe and the liquid return pipe are located at the same end of the liquid cooling plate, and the heat exchange pipe is U-shaped.
8. The battery module cooling system according to claim 7, wherein the communication pipe is connected to a U-bend of the heat exchange pipe.
9. The battery module cooling system according to claim 7, wherein a plurality of the heat exchange tubes of the U-shape are arranged at intervals in the width direction in the liquid-cooled plate.
10. The battery module cooling system according to claim 7, wherein the liquid cooling plate has a plurality of U-shaped heat exchange tubes arranged therein at intervals along a length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122946796.8U CN216288644U (en) | 2021-11-26 | 2021-11-26 | Battery module cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122946796.8U CN216288644U (en) | 2021-11-26 | 2021-11-26 | Battery module cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216288644U true CN216288644U (en) | 2022-04-12 |
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ID=81039306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122946796.8U Active CN216288644U (en) | 2021-11-26 | 2021-11-26 | Battery module cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216288644U (en) |
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2021
- 2021-11-26 CN CN202122946796.8U patent/CN216288644U/en active Active
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