CN113948740A - Self-purification radiator, fuel cell radiating system and vehicle - Google Patents
Self-purification radiator, fuel cell radiating system and vehicle Download PDFInfo
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- CN113948740A CN113948740A CN202111385696.0A CN202111385696A CN113948740A CN 113948740 A CN113948740 A CN 113948740A CN 202111385696 A CN202111385696 A CN 202111385696A CN 113948740 A CN113948740 A CN 113948740A
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- deionization
- radiator
- passage
- self
- cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04037—Electrical heating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
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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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention relates to the technical field of fuel cells, in particular to a self-purification radiator, a fuel cell radiating system and a vehicle, wherein the radiator comprises a radiating pipe, a deionization passage and two water chambers; the two water chambers are communicated through a radiating pipe, one water chamber is provided with a radiator inlet, and the other water chamber is communicated with the deionization passage; the deionization passage is provided with a radiator outlet; the deionization passage is internally provided with deionization materials; according to the invention, the deionization passage is combined in the radiator, when the radiator works, ions carried by the cooling liquid are absorbed by the deionization material, so that the purpose of deionization in the radiator is achieved, and the cooling liquid is in a low-conductivity state when flowing out of the radiator; the problem of high conductivity caused by overhigh ionic concentration of the cooling liquid after long-time standing is avoided; the ionic conductivity of the cooling liquid can be kept in real time, and meanwhile, the resistance of a cooling loop is reduced due to the fact that a separately arranged deionizer is omitted.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a self-purification radiator, a fuel cell radiating system and a vehicle.
Background
The low conductivity of a cooling loop of the vehicle-mounted fuel cell must be kept in the operation process, and the over-high conductivity of the cooling liquid can cause a series of problems of reduction of the insulation of the whole vehicle, reduction of the efficiency of the fuel cell and the like, so that the fuel cell and the whole vehicle can not normally operate, and a large potential safety hazard is generated. But the manufacturing process of aluminium system front end heat exchanger in the car cooling circuit can produce indissolvable scaling powder and remain at present, and the residue can continuously dissolve when carrying on the fuel cell car and make cooling liquid conductivity surging in the cooling liquid, simultaneously in the actual loading use, because reasons such as long-time storage can make the ion in the cooling circuit release in the cooling liquid, cause the cooling liquid conductivity to rise in the same way, and then lead to whole car high-voltage insulation trouble, seriously influence the normal operating of fuel cell car.
The traditional scheme is that a deionization tank which is densely filled with ion exchange resin is introduced into a high-temperature loop of the fuel cell, and redundant conductive ions in cooling liquid are removed by utilizing the ion exchange effect of the deionization tank. However, the existing deionization tank has the problem of too large flow resistance and cannot be directly arranged on the cooling circuit trunk, so that the deionization tank is usually arranged on the branch of the expansion water tank or the branch connected with the fuel cell/front-end main heat dissipation water tank in parallel in the prior art. Although the arrangement method avoids the problem of pressure drop caused by a large amount of cooling liquid flowing through the ion tank, the arrangement method cannot achieve a rapid deionization effect due to the limited flow rate of the cooling liquid flowing through the deionization tank. Especially, after the vehicle is placed for a long time, the conductivity of the cooling liquid can be greatly increased, and the scheme cannot deal with the situation, so that the insulation fault of the whole vehicle is directly caused.
In the prior art:
patent CN112563534A mentions a quick release type deionizer-radiator which realizes simple integration of deionizer and heat exchanger by placing it on the water chamber of heat exchanger. However, the invention is still characterized in that the deionization function is realized by simply connecting the deionizer and the heat exchanger in parallel, so that the problems of large resistance and small flow of the deionizer cannot be solved, and the absorption performance of the deionizer is not ideal when the deionizer is used alone.
Patent CN112670533A also mentions a radiator for hydrogen fuel cell with integrated deionizer, which realizes physical integration of deionizer and radiator by simply integrating deionizer at the outlet end of the water chamber of radiator. However, similar to the previous invention, the deionization function is realized by simply connecting a deionizer and a heat exchanger in series, so that on one hand, the circuit resistance is greatly increased by directly arranging the existing deionizer in a main line of a cooling circuit, and on the other hand, the absorption performance and the service life are far from ideal.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the self-purification radiator, the fuel cell radiating system and the vehicle are provided, wherein functions of a radiator and a deionization tank which are needed in the past are integrated, conductive ions carried by coolant are removed before the coolant flows out of a radiating water tank, and a fuel cell cooling loop is ensured to be in an electric insulation state in real time.
In order to solve the above technical problems, a first technical solution adopted by the present invention is:
a self-purification radiator comprises a radiating pipe, a deionization passage and two water chambers;
the two water chambers are communicated through a radiating pipe, one water chamber is provided with a radiator inlet, and the other water chamber is communicated with the deionization passage; the deionization passage is provided with a radiator outlet;
the deionization passage has a deionization material therein.
In order to solve the above technical problems, the second technical solution adopted by the present invention is:
a fuel cell heat radiation system, the fuel cell includes cooling inlet and cooling outlet of the galvanic pile, including the above-mentioned self-cleaning radiator, radiator fan, circulating pump, electromagnetic valve, thermostat, heater and expansion water tank;
the cooling outlet, the thermostat and the cooling inlet are communicated in sequence to form an isothermal loop;
the cooling outlet, the thermostat, the heater, the electromagnetic valve and the cooling inlet are communicated in sequence to form a heating loop;
the cooling outlet, the radiator and the cooling inlet are communicated in sequence to form a cooling loop;
the heat dissipation fan dissipates heat of the self-purification heat radiator, and the expansion water tank is communicated with a water chamber of the self-purification heat radiator.
In order to solve the above technical problems, a third technical solution adopted by the present invention is:
a vehicle comprises the fuel cell heat dissipation system.
The invention has the beneficial effects that: by combining the deionization passage in the radiator, when the radiator works, the cooling liquid enters the heat exchanger from the inlet of the radiator, flows out of the radiator from the outlet of the radiator after being radiated and cooled by the radiating pipe, and ions carried by the cooling liquid are absorbed by deionization materials (ionic resin particles) in the process of flowing through the deionization passage, so that the aim of deionization in the radiator is fulfilled, and the cooling liquid is in a low-conductivity state when flowing out of the radiator; meanwhile, when the automobile is stopped, especially under a long-time static working condition, the deionization passage directly communicated with the water chamber can continuously absorb ions released into the cooling liquid from the radiator, the cooling liquid flowing out of the outlet of the heat exchanger can be ensured to reach a low-conductivity state quickly when the automobile is started next time, and the insulation fault of the whole automobile caused by the high-conductivity problem due to the overhigh concentration of the ions of the long-time static cooling liquid is avoided. Through adopting the self-purification radiator then no longer to set up solitary deionizer, can realize coolant liquid ionic conductivity's real-time maintenance, owing to cancelled the deionizer of setting alone simultaneously to avoided the deionizer to the influence of whole return circuit resistance, be favorable to reducing cooling circuit resistance, reduced system energy consumption. Different from the traditional fuel cell heat dissipation loop, the traditional heat dissipation loop needs to be provided with a separate deionizer which is arranged in a loop connected with the expansion water tank or connected with the fuel cell stack in parallel.
Drawings
FIG. 1 is a schematic diagram of a self-cleaning radiator according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a deionization circuit of a self-cleaning heat sink according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a fuel cell heat removal system according to an embodiment of the present invention;
description of reference numerals: 1. a self-cleaning radiator; 11. a radiating pipe; 12. a deionization path; 121. a deionizing material; 122. a channel; 13. a water chamber; 14. a radiator inlet; 15. a radiator outlet; 2. a heat radiation fan; 3. a circulation pump; 4. an electromagnetic valve; 5. a galvanic pile; 6. a thermostat; 7. a heater; 8. an expansion water tank.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 and 2, a self-cleaning heat sink 1 includes a heat dissipating tube 11, a deionization path 12, and two water chambers 13;
the two water chambers 13 are communicated through the heat dissipation pipe 11, one water chamber 13 is provided with a radiator inlet 14, and the other water chamber 13 is communicated with the deionization passage 12; the deionization passage 12 is provided with a radiator outlet 15;
The deionization passage 12 has a deionization material 121 therein.
As can be seen from the above description, by incorporating the deionization path 12 in the radiator, when the radiator is in operation, the coolant enters the heat exchanger from the radiator inlet 14, after heat dissipation and cooling are performed through the heat dissipation pipe 11, the coolant flows out of the radiator from the radiator outlet 15, and during the process of flowing through the deionization path 12, ions carried by the coolant are absorbed by the deionization material 121 (ion resin particles), so as to achieve the purpose of deionization in the radiator, and the coolant is in a low conductivity state when flowing out of the radiator; meanwhile, when the automobile is stopped, especially under a long-time static working condition, the deionization passage 12 directly communicated with the water chamber 13 can continuously absorb ions released into the cooling liquid from the radiator, and the cooling liquid flowing out of the outlet of the heat exchanger can be ensured to reach a low-conductivity state quickly when the automobile is started next time, so that the insulation fault of the whole automobile caused by the high-conductivity problem due to the overhigh concentration of the ions in the long-time static cooling liquid is avoided.
Further, the deionization material 121 is coated with a water permeable layer, and the deionization material 121 is fixed in the deionization unit 12 through the water permeable layer.
Further, the deionization material 121 is regularly distributed in the deionization passage 12 such that the deionization passage 12 forms a channel 122 having a zigzag shape or a wave shape.
As can be seen from the above description, by forming the zigzag/wavy channels 122, the flow resistance loss can be reduced as much as possible while ensuring the ion exchange efficiency. Meanwhile, due to the fact that flow resistance is reduced, impact of cooling liquid on the deionized resin is reduced, resin loss is reduced, and overall reliability and service life are improved.
Further, the water chamber 13 is detachably connected to the deionization passage 12.
As can be seen from the above description, the replacement of the deionization path 12 can be facilitated and the periodic maintenance can be facilitated by detachably connecting the water chamber 13 and the deionization path 12.
Further, the water chamber 13 and the deionization passage 12 are detachably connected by a snap and a quick-release joint.
Further, the heat dissipation pipe 11 and the water chamber 13 are provided with a deionization material 121 therein.
As can be seen from the above description, by providing the deionization material 121 in the radiating pipe 11 and the water chamber 13, the deionization effect can be enhanced, and the electrical conductivity of the coolant at the outlet can be reduced.
Further, the self-purification radiator 1 further comprises a frame, and the frame, the radiating pipe 11, the deionization passage 12 and the two water chambers 13 are integrally designed;
The deionization passage 12 comprises an outer shell of a hard material realizing a support frame.
As can be seen from the above description, space saving can be achieved by an integrated design, with the framework being supported by the outer casing of the deionization passage 12, e.g. stainless steel, seamless steel pipe, aluminum alloy, etc.
Further, a plurality of radiating fins are further disposed on the outer surface of the radiating pipe 11.
As can be seen from the above description, the heat dissipation effect can be improved by the arrangement of the heat dissipation fins.
Referring to fig. 3, a fuel cell heat dissipation system, the fuel cell includes a cooling inlet and a cooling outlet of a stack 5, and is characterized by including the self-purification heat sink 1, a heat dissipation fan 2, a circulation pump 3, an electromagnetic valve 4, a thermostat 6, a heater 7 and an expansion water tank 8;
the cooling outlet, the thermostat 6 and the cooling inlet are communicated in sequence to form an isothermal loop;
the cooling outlet, the thermostat 6, the heater 7, the electromagnetic valve 4 and the cooling inlet are communicated in sequence to form a heating loop;
the cooling outlet, the radiator and the cooling inlet are communicated in sequence to form a cooling loop;
the heat dissipation fan 2 dissipates heat from the self-purification heat sink 1, and the expansion water tank 8 is communicated with the water chamber 13 of the self-purification heat sink 1.
From the above description, it can be known that by adopting the self-purification radiator 1, the provision of the separate deionizer is not required, the real-time maintenance of the ionic conductivity of the coolant can be realized, and meanwhile, the separately provided deionizer is eliminated, so that the influence of the deionizer on the resistance of the whole circuit is avoided, the reduction of the resistance of the cooling circuit is facilitated, and the energy consumption of the system is reduced. Unlike the conventional heat dissipation circuit of the fuel cell, a separate deionizer is required to be provided in the conventional heat dissipation circuit, and is often provided in a connection point of the expansion water tank 8 or in a circuit connected in parallel with the fuel cell stack 5.
A vehicle comprises the fuel cell heat dissipation system.
The deionizing material 121 used in the present application is deionized silica gel, or the same deionizing material as disclosed in CN 200780016325.7.
Example one
A self-purification radiator comprises twelve radiating pipes, a deionization passage and two water chambers;
the two water chambers are communicated through a radiating pipe, one water chamber is provided with a radiator inlet, and the other water chamber is communicated with the deionization passage; the deionization passage is provided with a radiator outlet;
the deionization passage has a deionization material therein.
The deionization material is coated with a permeable layer (a fine grid or a permeable film), and the deionization material is fixed (adhered) in the deionization passage through the permeable layer.
The deionization materials are regularly distributed in the deionization passage, so that a zigzag or wavy channel is formed in the deionization passage.
The water chamber is detachably connected with the deionization passage.
The water chamber is detachably connected with the deionization passage through a buckle and a quick-release joint.
And deionized materials are arranged in the radiating pipe and the water chamber.
The self-purification radiator also comprises a frame, and the frame, the radiating pipe, the deionization passage and the two water chambers are designed in an integrated manner;
the deionization passage comprises an outer shell which is made of hard materials for realizing a support frame.
And a plurality of radiating fins are also arranged on the outer surface of the radiating pipe.
Example two
A fuel cell heat dissipation system, the fuel cell includes the cooling inlet and cooling outlet of the galvanic pile, including the self-cleaning radiator, heat dissipation fan, circulation pump, electromagnetic valve, thermostat, heater and expansion water tank of the embodiment one;
the cooling outlet, the thermostat and the cooling inlet are communicated in sequence to form an isothermal loop;
the cooling outlet, the thermostat, the heater, the electromagnetic valve and the cooling inlet are communicated in sequence to form a heating loop;
the cooling outlet, the radiator and the cooling inlet are communicated in sequence to form a cooling loop;
The heat dissipation fan dissipates heat of the self-purification heat radiator, and the expansion water tank is communicated with a water chamber of the self-purification heat radiator.
EXAMPLE III
A vehicle comprising the fuel cell heat dissipation system of the first embodiment.
In conclusion, the self-purification radiator provided by the invention directly arranges the deionization channel in the radiator trunk circuit, the contact area of the cooling liquid and the deionization resin is greatly increased while the resistance of the cooling circuit is not increased basically, the quick absorption of ions can be realized, the deionization efficiency is greatly improved, and the self-purification radiator is particularly suitable for the current use scene of fuel cell automobiles.
The deionization passage structure is arranged in a detachable mode from the outside, and meanwhile, the deionization passage structure is arranged at the upper part of the heat exchanger and integrated with the heat dissipation frame, so that the deionization passage structure is easy to maintain and replace in practical use.
After the self-purification type radiator is used, no additional deionization structure such as a deionization tank is needed to be arranged in a cooling loop, the complexity of the system is reduced, the cost of the system is saved, and the resistance of the cooling loop is reduced.
Because the trunk line is provided with the deionization structure (passage), all the cooling liquid can be contacted with the deionization resin, the contact area of the cooling liquid and the deionization resin is greatly increased, compared with the structure provided with the deionization tank, the deionization capacity of the deionization tank is greatly enhanced, and the deionization tank is very suitable for being carried on vehicles with high requirements on the conductivity of the cooling liquid, such as fuel cell vehicles, pure electric vehicles and the like.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. A self-purification radiator is characterized by comprising a radiating pipe, a deionization passage and two water chambers;
the two water chambers are communicated through a radiating pipe, one water chamber is provided with a radiator inlet, and the other water chamber is communicated with the deionization passage; the deionization passage is provided with a radiator outlet;
the deionization passage has a deionization material therein.
2. The self-purifying heat sink of claim 1, wherein the deionizing materials are coated with a water permeable layer, and the deionizing materials are fixed in the deionizing passages through the water permeable layer.
3. The self-cleaning heat sink as recited in claim 1, wherein said deionized material is distributed regularly within the deionized water passage such that the deionized water passage forms a channel having a zigzag or wavy shape.
4. The self-decontaminating heat sink of claim 1, wherein the water chamber is removably coupled to the deionization circuit.
5. The self-purifying heat sink according to claim 4, wherein the water chamber is detachably connected to the deionization passage by a snap and a quick release joint.
6. The self-purifying radiator of claim 1, wherein the heat dissipating tube and the water chamber are provided with deionized materials.
7. The self-purification radiator of claim 1, further comprising a frame, wherein the frame, the heat dissipation pipe, the deionization passage and the two water chambers are integrally designed;
the deionization passage comprises an outer shell which is made of hard materials for realizing a support frame.
8. The self-cleaning radiator as claimed in claim 1, wherein a plurality of radiating fins are further provided on the outer surface of said radiating pipe.
9. A heat dissipation system for a fuel cell, the fuel cell comprising a cooling inlet and a cooling outlet of a stack, comprising the self-cleaning radiator, the heat dissipation fan, the circulation pump, the solenoid valve, the thermostat, the heater, and the expansion tank of any one of claims 1 to 8;
the cooling outlet, the thermostat and the cooling inlet are communicated in sequence to form an isothermal loop;
the cooling outlet, the thermostat, the heater, the electromagnetic valve and the cooling inlet are communicated in sequence to form a heating loop;
The cooling outlet, the radiator and the cooling inlet are communicated in sequence to form a cooling loop;
the heat dissipation fan dissipates heat of the self-purification heat radiator, and the expansion water tank is communicated with a water chamber of the self-purification heat radiator.
10. A vehicle characterized by comprising the fuel cell heat dissipation system according to claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111385696.0A CN113948740A (en) | 2021-11-22 | 2021-11-22 | Self-purification radiator, fuel cell radiating system and vehicle |
| PCT/CN2022/111834 WO2023087801A1 (en) | 2021-11-22 | 2022-08-11 | Self-purification heat dissipation device, fuel cell heat dissipation system, and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111385696.0A CN113948740A (en) | 2021-11-22 | 2021-11-22 | Self-purification radiator, fuel cell radiating system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113948740A true CN113948740A (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111385696.0A Pending CN113948740A (en) | 2021-11-22 | 2021-11-22 | Self-purification radiator, fuel cell radiating system and vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113948740A (en) |
| WO (1) | WO2023087801A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087801A1 (en) * | 2021-11-22 | 2023-05-25 | 北京国家新能源汽车技术创新中心有限公司 | Self-purification heat dissipation device, fuel cell heat dissipation system, and vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2600923Y (en) * | 2002-08-13 | 2004-01-21 | 上海燃料电池汽车动力***有限公司 | Radiator with deionization device for fuel cell engine |
| CN207572463U (en) * | 2017-12-20 | 2018-07-03 | 扬州中德汽车零部件有限公司 | A kind of hydrogen fuel cell integrated-type radiator |
| CN109962264B (en) * | 2017-12-25 | 2024-02-20 | 上海重塑能源科技有限公司 | Built-in deionization system of water tank of fuel cell |
| JP2019145345A (en) * | 2018-02-21 | 2019-08-29 | トヨタ自動車株式会社 | Washing method for cooling system for fuel cell system |
| CN212461742U (en) * | 2020-05-25 | 2021-02-02 | 深圳国氢新能源科技有限公司 | Radiator integrated device, fuel cell cooling system and fuel cell automobile |
| CN113948740A (en) * | 2021-11-22 | 2022-01-18 | 北京国家新能源汽车技术创新中心有限公司 | Self-purification radiator, fuel cell radiating system and vehicle |
-
2021
- 2021-11-22 CN CN202111385696.0A patent/CN113948740A/en active Pending
-
2022
- 2022-08-11 WO PCT/CN2022/111834 patent/WO2023087801A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087801A1 (en) * | 2021-11-22 | 2023-05-25 | 北京国家新能源汽车技术创新中心有限公司 | Self-purification heat dissipation device, fuel cell heat dissipation system, and vehicle |
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| Publication number | Publication date |
|---|---|
| WO2023087801A1 (en) | 2023-05-25 |
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