CN219350360U - Cooling device for power battery, power battery and vehicle - Google Patents
Cooling device for power battery, power battery and vehicle Download PDFInfo
- Publication number
- CN219350360U CN219350360U CN202223378089.4U CN202223378089U CN219350360U CN 219350360 U CN219350360 U CN 219350360U CN 202223378089 U CN202223378089 U CN 202223378089U CN 219350360 U CN219350360 U CN 219350360U
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- Prior art keywords
- power battery
- cooling
- dry ice
- cooling device
- power
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- 238000001816 cooling Methods 0.000 title claims abstract description 74
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 70
- 235000011089 carbon dioxide Nutrition 0.000 claims abstract description 44
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 13
- 239000001569 carbon dioxide Substances 0.000 claims description 13
- 239000002826 coolant Substances 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000000859 sublimation Methods 0.000 description 4
- 230000008022 sublimation Effects 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Classifications
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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 cooling device for a power battery, the power battery and a vehicle, the cooling device for the power battery comprises a dry ice storage, a first electric control valve and a cooling pipeline, wherein the dry ice storage is used for storing dry ice, the dry ice storage is connected with the cooling pipeline, the cooling pipeline extends to the inside of the power battery from the dry ice storage, and the first electric control valve is arranged on the cooling pipeline. The utility model can shorten the cooling circulation loop, simplify the coolant treatment flow and improve the cooling efficiency.
Description
Technical Field
The present utility model relates to the field of power batteries, and in particular, to a cooling device for a power battery, and a vehicle.
Background
With the development of new energy automobile industry, users increasingly pay attention to the safety problem of taking a lithium battery pack as a power unit. The lithium battery pack can continuously generate heat in the lithium battery pack in the working process, and a circulating cooling device is required to cool the lithium battery pack. In the prior art, glycol cooling liquid is used as a liquid medium, a cooling calandria is arranged in a battery pack, a circulating pump pumps the medium in a medium box into the cooling calandria and returns the medium box, the cooling system utilizing the glycol cooling liquid has the defects of long cooling circulation loop and complex treatment flow of the cooling medium, in the cooling system, intermediate liquid medium circulation is required to indirectly transfer heat, the liquid glycol cooling liquid does not have phase change in the battery pack, and the cooling efficiency of the battery is lower only caused by heat transfer of temperature difference.
Disclosure of Invention
The utility model aims to provide a cooling device for a power battery, the power battery and a vehicle, so as to shorten a cooling circulation loop, simplify a coolant treatment flow and improve cooling efficiency.
The aim of the utility model is achieved by adopting the following technical scheme. According to the cooling device for the power battery, which is provided by the utility model, the cooling device comprises a dry ice storage, a first electric control valve and a cooling pipeline, wherein the dry ice storage is used for storing dry ice, the dry ice storage is connected with the cooling pipeline, the cooling pipeline extends from the dry ice storage to the inside of the power battery, and the first electric control valve is arranged on the cooling pipeline.
In some embodiments, the cooling device further comprises a gas tank connected to the cooling conduit, the cooling conduit further extending from the interior of the power cell to the gas tank.
In some embodiments, the cooling device further comprises a compressor disposed on a cooling conduit between the air reservoir and the power cell.
In some embodiments, the cooling device further comprises a second electrically controlled valve disposed on the cooling pipe for controlling the release of carbon dioxide from the air reservoir.
In some embodiments, the cooling duct includes a battery inner duct disposed inside the power battery and a battery outer duct disposed outside the power battery.
In some embodiments, the battery inner conduit is integrally formed with the battery outer conduit.
In some embodiments, the first electrically controlled valve is disposed on the battery external conduit between the dry ice reservoir and the power battery.
In some embodiments, the second electrically controlled valve is disposed on the battery internal conduit within the power battery.
The utility model also provides a power battery, which comprises the cooling device for the power battery.
The utility model also provides a vehicle comprising the power battery.
The beneficial effects of the utility model at least comprise:
1. the utility model can shorten the cooling circulation loop and simplify the coolant treatment flow by using dry ice as the coolant of the power battery, thereby improving the cooling efficiency.
2. According to the utility model, the first electric control valve is arranged on the battery external pipeline between the dry ice storage device and the power battery, and the second electric control valve is arranged on the battery internal pipeline in the power battery, so that the release of carbon dioxide in the air storage tank into the power battery is controlled, and when the second electric control valve and the first electric control valve are simultaneously opened, the air storage tank can release carbon dioxide to dilute oxygen into the battery pack while cooling the power battery through dry ice, so that the concentration of combustible gas is effectively reduced, and the ignition and explosion risks are reduced.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model, as well as the preferred embodiments thereof, together with the following detailed description of the utility model given in conjunction with the accompanying drawings.
Drawings
Fig. 1 shows a schematic structure of a cooling device for a power battery according to an embodiment of the present utility model.
Detailed Description
In order to further explain the technical means of the present utility model, the following describes a cooling device for a power battery, a power battery and a vehicle according to the present utility model in detail with reference to the accompanying drawings and the preferred embodiments. The following examples are only for more clearly illustrating the technical solution of the present utility model, and therefore are only exemplary and are not intended to limit the scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the term "comprising" in the description of the present application and the claims and in the description of the figures above, and any variants thereof.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the term "connected" should be construed broadly, and may be a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the cooling device for a power battery according to the present utility model includes a dry ice storage 1, a first electrically controlled valve 2, and a cooling pipe 4, wherein a large amount of dry ice is stored in the dry ice storage 1, and the dry ice storage 1 is connected to a first end of the cooling pipe 4 for releasing dry ice into the cooling pipe 4 through the first electrically controlled valve 2 to cool the power battery 3. The first electrically controlled valve 2 is arranged on a cooling duct 4 between the dry ice reservoir 1 and the power cell 3, the cooling duct 4 extending from the dry ice reservoir 1 to the interior of the power cell 3.
In one or more embodiments, the cooling duct 4 includes a battery inner duct 41 and a battery outer duct 42, the battery inner duct 41 being integrally formed with the battery outer duct 42. The battery inner pipe 41 is provided inside the power battery 3, and the battery outer pipe 42 is provided outside the power battery 3. In one or more embodiments, the first electrically controlled valve 2 is disposed on the battery external conduit 42 between the dry ice reservoir 1 and the power battery 3. When the first electrically controlled valve 2 is opened, the dry ice reservoir 1 is able to release dry ice into the battery inner conduit 41.
When the power cell 3 operates at a high temperature, the dry ice in the dry ice storage 1 may be released into the cell internal pipe 41 located inside the power cell 3 and sublimated therein to absorb heat for cooling the power cell 3, and carbon dioxide generated after sublimation of the dry ice is easily recovered and stored. The utility model can shorten the cooling circulation loop and simplify the coolant treatment flow by using dry ice as the coolant, thereby improving the cooling efficiency.
In a preferred embodiment, the cooling device for a power battery according to the present utility model further comprises a gas storage tank 6 and a compressor 7, wherein the cooling pipeline 4 extends from the dry ice storage 1 to the interior of the power battery 3 and extends from the interior of the power battery 3 to the gas storage tank 6, the gas storage tank 6 is connected with the second end of the cooling pipeline 4, the gas storage tank 6 is used for storing carbon dioxide formed by sublimation of dry ice, and the gas storage tank 6 and the dry ice storage 1 realize separate storage of carbon dioxide gas and dry ice. A compressor 7 is arranged on a battery external pipeline 42 between the air storage tank 6 and the power battery 3, and the compressor 7 is used for compressing carbon dioxide generated by sublimation of dry ice and storing the compressed carbon dioxide into the air storage tank 6 for subsequent recycling.
In a preferred embodiment, the cooling device for a power battery according to the present utility model further comprises a second electrically controlled valve 5, wherein the second electrically controlled valve 5 is disposed on a battery internal pipe 41 inside the power battery 3, for controlling the release of carbon dioxide in the air storage tank 6 into the power battery 3. The second electrically controlled valve 5 may be a three-way valve, which may release carbon dioxide from the pipeline into the power cell 3. When the second electric control valve 5 is opened to the valve in the power battery 3, and meanwhile, when the first electric control valve 2 is opened, the cooling of the power battery 3 through dry ice can be realized, and meanwhile, the air storage tank 6 releases carbon dioxide to dilute oxygen, so that the concentration of combustible gas in the battery pack is effectively reduced, and the ignition and explosion risks are reduced. In a preferred embodiment, the dry ice container 1 is replaceable, so that the specification of the dry ice container can be reasonably selected according to the amount of heat generated by the battery pack and the weight and space of the vehicle.
According to the scheme, the power battery is cooled by the dry ice, after the dry ice is released into the battery inner pipeline 41, carbon dioxide gas generated by sublimation can be quickly recovered and stored through the compressor 7 and the air storage tank 6, and the efficiency of recovering and treating the coolant is improved.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to practice the present utility model. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the utility model. Thus, the present utility model is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a cooling device for power battery, its characterized in that includes dry ice accumulator, first automatically controlled valve and cooling pipeline, wherein, dry ice accumulator is used for storing dry ice, dry ice accumulator with cooling pipeline is connected, cooling pipeline by dry ice accumulator extends to power battery's inside, first automatically controlled valve set up in on the cooling pipeline.
2. The cooling device for a power battery according to claim 1, further comprising an air tank connected to the cooling pipe, the cooling pipe further extending from an inside of the power battery to the air tank.
3. The cooling device for a power battery according to claim 2, further comprising a compressor provided on a cooling pipe between the air tank and the power battery.
4. The cooling device for a power cell of claim 2, further comprising a second electrically controlled valve disposed on the cooling conduit for controlling the release of carbon dioxide from the air reservoir.
5. The cooling device for a power battery according to claim 4, wherein the cooling duct includes a battery inner duct provided inside the power battery and a battery outer duct provided outside the power battery.
6. The cooling device for a power cell as claimed in claim 5, wherein the cell inner pipe is integrally formed with the cell outer pipe.
7. The cooling device for a power cell of claim 5, wherein the first electrically controlled valve is disposed on the cell external conduit between the dry ice reservoir and the power cell.
8. The cooling device for a power cell of claim 5, wherein the second electrically controlled valve is disposed on the cell interior conduit within the power cell.
9. A power battery, characterized by comprising a cooling device for a power battery according to any one of claims 1 to 8.
10. A vehicle comprising the power battery according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223378089.4U CN219350360U (en) | 2022-12-14 | 2022-12-14 | Cooling device for power battery, power battery and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223378089.4U CN219350360U (en) | 2022-12-14 | 2022-12-14 | Cooling device for power battery, power battery and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219350360U true CN219350360U (en) | 2023-07-14 |
Family
ID=87104871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223378089.4U Active CN219350360U (en) | 2022-12-14 | 2022-12-14 | Cooling device for power battery, power battery and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219350360U (en) |
-
2022
- 2022-12-14 CN CN202223378089.4U patent/CN219350360U/en active Active
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