CN219435958U - Liquid cooling device for battery pack - Google Patents
Liquid cooling device for battery pack Download PDFInfo
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- CN219435958U CN219435958U CN202222603803.9U CN202222603803U CN219435958U CN 219435958 U CN219435958 U CN 219435958U CN 202222603803 U CN202222603803 U CN 202222603803U CN 219435958 U CN219435958 U CN 219435958U
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- liquid cooling
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- cooling
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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
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Abstract
The utility model relates to a battery pack liquid cooling device with a better heat dissipation effect, which comprises two liquid cooling water chambers and a plurality of liquid cooling plates, wherein the plurality of liquid cooling plates are welded between the two liquid cooling water chambers, one side port of a cooling liquid channel in each liquid cooling plate is communicated with a cavity of one liquid cooling water chamber, the other side port of the cooling liquid channel in each liquid cooling plate is communicated with a cavity of the other liquid cooling water chamber, the distance between the adjacent liquid cooling plates is matched with the thickness of an electric core in the battery pack, and a water pipe interface is arranged on each liquid cooling water chamber. The advantages are that: the battery pack liquid cooling device can enable the two side surfaces of each battery cell to be respectively contacted with the corresponding liquid cooling plate, so that the battery cells can uniformly emit the quantity, and the heat dissipation effect of the device is improved; in addition, the device can enable each electric core in the battery pack to uniformly diffuse, so that the temperature difference of all the electric cores in the battery pack is controlled within a very small range, and the whole service life of the battery pack is ensured.
Description
Technical Field
The utility model belongs to the technical field of electric automobiles, and particularly relates to a battery pack liquid cooling device.
Background
The battery pack is usually used by a plurality of groups of battery cells in series or in parallel, and has the advantages of strong power supply performance, large capacity and the like. However, when a plurality of battery cells in the battery pack are simultaneously electrified, a high-density heating phenomenon can occur, the service life of the battery can be influenced by the high-density heating, and serious potential safety hazards exist (combustion and even explosion can occur when the battery pack is overheated).
In order to solve the heating problem of the battery pack in the use process, an external cooling system is designed for the battery pack in the industry to solve the problem, such as CN 217361730U, a novel battery pack liquid cooling system is named, the novel battery pack liquid cooling system comprises a battery pack body, a left fixing plate, a right fixing plate, a front fixing plate, a rear fixing plate, an inlet pipe, an outlet pipe and a flow channel, wherein the left fixing plate, the right fixing plate, the front fixing plate and the rear fixing plate are respectively arranged at the periphery of the battery pack body; the flow channel is positioned in the battery pack body; the flow channel is U-shaped or serpentine; two ends of the flow channel are provided with flow channel grooves, and the two inlet and outlet pipes are respectively welded on the battery pack body; the inlet and outlet pipes are respectively communicated with the inlet and outlet of the flow channel. But this kind of novel battery package liquid cooling system, its liquid cooling board sets up in the lower part of battery cell, and the cooling position of setting like this is insufficient for evenly dispelling battery cell heat, and its radiating effect is relatively poor promptly.
Disclosure of Invention
The design purpose is as follows: in order to avoid the defects in the background technology, a battery pack liquid cooling device with better heat dissipation effect is designed.
The design scheme is as follows: to achieve the above design objective.
1. A plurality of liquid cooling plates are welded between the two liquid cooling water chambers, one side port of a cooling liquid channel in each liquid cooling plate is communicated with a cavity of one liquid cooling water chamber, the other side port of the cooling liquid channel is communicated with a cavity of the other liquid cooling water chamber, the distance between the adjacent liquid cooling plates is matched with the thickness of an electric core in the battery pack, and the liquid cooling water chamber is provided with a water pipe interface. The purpose of this design is: a plurality of liquid cooling plates are welded between the two liquid cooling water chambers, one side port of a cooling liquid channel in each liquid cooling plate is communicated with a cavity of one liquid cooling water chamber, the other side port of the cooling liquid channel is communicated with a cavity of the other liquid cooling water chamber, the distance between the adjacent liquid cooling plates is matched with the thickness of an electric core in the battery pack, and a water pipe interface is arranged on each liquid cooling water chamber, and as the two side surfaces of each battery electric core are respectively contacted with the corresponding liquid cooling plate, the electric core of each battery can uniformly emit, so that the heat dissipation effect of the device is improved; in addition, the device can enable each electric core in the battery pack to uniformly diffuse, so that the temperature difference of all the electric cores in the battery pack is controlled within a very small range, and the whole service life of the battery pack is ensured.
2. The number of the cooling liquid channels in the liquid cooling plate is multiple, the cooling liquid channels penetrate through the end faces of the two sides of the liquid cooling plate, and the design that the cooling liquid channels are equidistantly arranged is a second technical feature of the utility model. The purpose of this design is: the number of the cooling liquid channels in the liquid cooling plate is a plurality of cooling liquid channels which penetrate through the end faces of the two sides of the liquid cooling plate, and the plurality of cooling liquid channels are arranged in the liquid cooling plate, so that the contact area between the cooling liquid passing through the liquid cooling plate and the plate body of the liquid cooling plate can be increased, and more heat can be taken away by the cooling liquid in the heat exchange process, and the heat dissipation effect of the liquid cooling plate is improved.
3. The plane design of the welding surface of the liquid cooling chamber and the liquid cooling plate is the third technical characteristic of the utility model. The purpose of this design is: the surface welded with the liquid cooling plate in the liquid cooling chamber is a plane, and when the corresponding battery cell is in contact with the welding surface, the liquid cooling chamber can also radiate heat of the battery cell through heat exchange.
4. The liquid cooling water chamber is characterized in that a plurality of through holes matched with the ends of the liquid cooling plate are formed in the surface of the liquid cooling water chamber, which is welded with the liquid cooling plate, and the joint of the liquid cooling plate and the liquid cooling water chamber is sealed and welded after the end of one side of the liquid cooling plate is inserted into the cavity of the liquid cooling water chamber through the corresponding through hole. The purpose of this design is: the liquid cooling chamber is provided with a plurality of through holes matched with the ends of the liquid cooling plate on the surface welded with the liquid cooling plate, one side end of the liquid cooling plate is inserted into the cavity of the liquid cooling chamber through the corresponding through hole, and the joint of the liquid cooling plate and the liquid cooling chamber is welded in a sealing manner.
The technical scheme is as follows: the utility model provides a group battery liquid cooling device, includes two liquid cooling chambers and a plurality of liquid cooling board, the welding has a plurality of liquid cooling boards between two liquid cooling chambers, one side port of the cooling liquid passageway in the liquid cooling board link up with the cavity of one of them liquid cooling chamber, the opposite side port link up with the cavity of another liquid cooling chamber, and the interval between the adjacent liquid cooling boards matches with the thickness of the electric core in the group battery, be equipped with water pipe interface on the liquid cooling chamber.
Compared with the background technology, the battery pack liquid cooling device can enable the two side surfaces of each battery cell to be respectively contacted with the corresponding liquid cooling plates, so that the battery cells can uniformly emit the quantity, and the heat dissipation effect of the device is improved; in addition, the device can enable each electric core in the battery pack to uniformly diffuse, so that the temperature difference of all the electric cores in the battery pack is controlled within a very small range, and the whole service life of the battery pack is ensured.
Drawings
Fig. 1 is a schematic perspective view of a battery pack liquid cooling device.
Fig. 2 is a schematic top view of a battery pack liquid cooling device.
FIG. 3 is a schematic cross-sectional view of the structure at A-A in FIG. 2.
Fig. 4 is a schematic cross-sectional view of the structure at B-B in fig. 2.
Fig. 5 is a schematic perspective view of a battery pack liquid cooling device and a battery cell during assembly.
Detailed Description
Example 1: reference is made to fig. 1-5. The utility model provides a group battery liquid cooling device, includes two liquid cooling room 1 and a plurality of liquid cooling board 2, the welding has a plurality of liquid cooling boards 2 between two liquid cooling room 1, one side port of cooling liquid passageway 21 in the liquid cooling board 2 link up with the cavity 11 of one of them liquid cooling room 1, the opposite side port link up with the cavity 11 of another liquid cooling room 1, and the interval between the adjacent liquid cooling board 2 matches with the thickness of electric core 3 in the group battery, be equipped with water pipe interface 12 on the liquid cooling room 1. The surface of the liquid cooling plate 2 is in close contact with the largest plane of the battery cell, and in order to improve the fitting degree between the two contact surfaces, heat conducting glue can be filled between the two contact surfaces to fill the gap. In the use process, one liquid cooling water chamber 1 is a liquid inlet chamber, the other liquid cooling water chamber 1 is a liquid outlet chamber, namely, external cooling liquid enters the liquid cooling plates 2 through liquid inlets of the cooling liquid channels 21 in the liquid cooling plates 2 after entering the liquid cooling water chamber 1 serving as the liquid inlet chamber, the cooling liquid enters the liquid cooling water chamber 1 serving as the liquid outlet chamber from a liquid outlet of the corresponding cooling liquid channel 21 after heat exchange in the liquid cooling plates 2 and flows to the outside through the liquid cooling water chamber 1 serving as the liquid outlet chamber, and the cooling liquid is antifreeze. The device is of an integrated rigid structure, and is convenient to assemble with a battery cell.
The number of the cooling liquid channels 21 in the liquid cooling plate 2 is one, and the cooling liquid channels 21 penetrate through the two side end surfaces of the liquid cooling plate 2. Or the number of the cooling liquid channels 21 in the liquid cooling plate 2 is plural, the cooling liquid channels 21 penetrate through the end surfaces of both sides of the liquid cooling plate 2, and the plurality of cooling liquid channels 21 are equidistantly arranged. The material of the liquid cooling plate 2 may be aluminum, copper, or plastic suitable for heat conduction.
A water inlet pipe 4 is arranged at the water pipe joint of one liquid cooling chamber 1, and a water outlet pipe 5 is arranged at the water pipe joint of the other liquid cooling chamber 1. The outside sets up the cold water machine and the liquid outlet of cold water machine is put through with inlet tube 4 through the pipeline, and the inlet is put through with outlet pipe 5 through the pipeline, realizes the coolant liquid cyclic utilization. The surface of the liquid cooling chamber 1 welded with the liquid cooling plate 2 is a plane. The cross section of the liquid cooling water chamber 1 is rectangular, or the cross section of the liquid cooling water chamber 1 is square, or the cross section of the liquid cooling water chamber 1 is semicircular.
The surface of the liquid cooling chamber 1 welded with the liquid cooling plate 2 is provided with a plurality of through holes 13 matched with the ends of the liquid cooling plate 2, and the joint of the liquid cooling plate 2 and the liquid cooling chamber 1 is welded in a sealing way after one side end of the liquid cooling plate 2 is inserted into the cavity 11 of the liquid cooling chamber 1 through the corresponding through holes 13.
It should be understood that: although the above embodiments describe the design concept of the present utility model in more detail, these descriptions are merely descriptions of the design concept of the present utility model, and not limitations on the design concept of the present utility model, and any combination, addition or modification not exceeding the design concept of the present utility model falls within the scope of the present utility model.
Claims (7)
1. The utility model provides a group battery liquid cooling device, includes two liquid cooling hydroecium (1) and a plurality of liquid cooling board (2), characterized by: a plurality of liquid cooling plates (2) are welded between the two liquid cooling water chambers (1), one side port of a cooling liquid channel (21) in each liquid cooling plate (2) is communicated with a cavity (11) of one liquid cooling water chamber (1), the other side port of the cooling liquid channel is communicated with a cavity (11) of the other liquid cooling water chamber (1), the distance between the adjacent liquid cooling plates (2) is matched with the thickness of an electric core (3) in the battery pack, and a water pipe interface (12) is arranged on each liquid cooling water chamber (1).
2. The battery pack liquid cooling apparatus of claim 1, wherein: the number of the cooling liquid channels (21) in the liquid cooling plate (2) is one, and the cooling liquid channels (21) penetrate through the end surfaces of the two sides of the liquid cooling plate (2).
3. The battery pack liquid cooling apparatus of claim 1, wherein: the number of the cooling liquid channels (21) in the liquid cooling plate (2) is multiple, and the cooling liquid channels (21) penetrate through the end surfaces of the two sides of the liquid cooling plate (2).
4. The battery pack liquid cooling apparatus of claim 1, wherein: a water inlet pipe (4) is arranged at the water pipe interface of one liquid cooling water chamber (1), and a water outlet pipe (5) is arranged at the water pipe interface of the other liquid cooling water chamber (1).
5. The battery pack liquid cooling apparatus of claim 1, wherein: the surface of the liquid cooling chamber (1) welded with the liquid cooling plate (2) is a plane.
6. The battery pack liquid cooling apparatus according to claim 1 or 5, wherein: the cross section of the liquid cooling chamber (1) is rectangular, or the cross section of the liquid cooling chamber (1) is semicircular.
7. The battery pack liquid cooling apparatus of claim 1, wherein: the liquid cooling chamber (1) is provided with a plurality of through holes (13) matched with the ends of the liquid cooling plate (2) on the surface welded with the liquid cooling plate (2), one side end of the liquid cooling plate (2) is inserted into the cavity (11) of the liquid cooling chamber (1) through the corresponding through holes (13), and the joint of the liquid cooling plate (2) and the liquid cooling chamber (1) is welded in a sealing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222603803.9U CN219435958U (en) | 2022-09-26 | 2022-09-26 | Liquid cooling device for battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222603803.9U CN219435958U (en) | 2022-09-26 | 2022-09-26 | Liquid cooling device for battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219435958U true CN219435958U (en) | 2023-07-28 |
Family
ID=87343602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222603803.9U Active CN219435958U (en) | 2022-09-26 | 2022-09-26 | Liquid cooling device for battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219435958U (en) |
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2022
- 2022-09-26 CN CN202222603803.9U patent/CN219435958U/en active Active
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