CN107082006A - Hydrogen cell automobile high pressure hydrogen refrigerating plant - Google Patents
Hydrogen cell automobile high pressure hydrogen refrigerating plant Download PDFInfo
- Publication number
- CN107082006A CN107082006A CN201710354578.0A CN201710354578A CN107082006A CN 107082006 A CN107082006 A CN 107082006A CN 201710354578 A CN201710354578 A CN 201710354578A CN 107082006 A CN107082006 A CN 107082006A
- Authority
- CN
- China
- Prior art keywords
- high pressure
- hydrogen
- pressure hydrogen
- expansion
- car
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000001257 hydrogen Substances 0.000 title claims abstract description 69
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 69
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 125000004435 hydrogen atom Chemical group [H]* 0.000 title claims abstract description 14
- 238000005057 refrigeration Methods 0.000 claims abstract description 27
- 239000000446 fuel Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims 1
- 230000006837 decompression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/06—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Fuel Cell (AREA)
Abstract
The present invention provides a kind of hydrogen cell automobile high pressure hydrogen refrigerating plant, including：High pressure hydrogen tank (1) and refrigeration system (2), the refrigeration system (2) include one or more levels expansion system, and every grade of expansion system includes an expanding machine (3) and a heat exchanger (4).High pressure hydrogen is flowed out from high pressure hydrogen tank (1), and expansion systems at different levels are flowed into successively；In expansion systems at different levels, expanding machine (3) decrease temperature and pressure, external output work are first passed through, subsequently into heat exchanger (4), when in-car needs refrigeration, cold is provided for in-car, when in-car is not required to refrigeration, heat exchange is carried out with environment or fuel cell cooling circulation water.The present invention is recycled the pressure energy in high pressure hydrogen tank by refrigeration system (2), while providing cold for driving cabin, improves capacity usage ratio.
Description
Technical field
The present invention relates to hydrogen energy source refrigerator on vehicles, more particularly to a kind of high pressure hydrogen refrigerating plant.
Background technology
As shown in Figure 2,3, traditional hydrogen cell automobile is circulated using steam compression type refrigeration.Refrigerant passes through compressor
(5) compress, state point 2 is warming up to by state point 1, condenser (6) heat release is then flowed through, is cooled to by the equipressure of state point 2
State point 4, expands through choke valve (3), state point 5 is cooled to by state point 4, finally flows into evaporator (18) and absorbs in-car
Heat, completes refrigeration.Conventional vapor-compression kind of refrigeration cycle, not only compressor need consume motor electric work, influence vehicle operation,
And equipment is huge need to take big quantity space for condenser and evaporator etc..Therefore, patent of the present invention proposes to recycle High Pressure Hydrogen
Pressure energy in gas tank, while freezing to in-car.As shown in figure 3, high pressure hydrogen is dropped by state point 4 by expander
Pressure is cooled to state point 5, flows through heat exchanger and absorbs in-car heat, realizes in-car refrigeration.
The content of the invention
It is an object of the present invention in view of the shortcomings of the prior art there is provided a kind of high pressure hydrogen refrigerating plant, improve hydrogen combustion
Expect the vehicle energy utilization efficiency of battery car.
The technical scheme is that, a kind of hydrogen cell automobile high pressure hydrogen refrigerating plant, including：High pressure hydrogen tank
(1) and refrigeration system (2), the refrigeration system (2) includes one or more levels expansion system, every grade of expansion system include one it is swollen
Swollen machine (3) and a heat exchanger (4).High pressure hydrogen is flowed out from high pressure hydrogen tank (1), and expansion systems at different levels are flowed into successively；Each
In level expanding machine, expanding machine (3) decrease temperature and pressure, external output work, subsequently into heat exchanger (4), when in-car needs system are first passed through
When cold, cold is provided for in-car, when in-car is not required to refrigeration, heat exchange is carried out with environment or fuel cell cooling circulation water.
The expanding machine is axial-flow type expanding machine, radial-flow type expanding machine, footpath axial-flow type expanding machine, scroll expansion machine, spiral shell
Expander or piston expansion engine.Expanding machine plays a part of reduction Hydrogen Vapor Pressure and temperature, not only reclaims high pressure hydrogen
Pressure energy and also reclaim the cold of high pressure hydrogen, in-car refrigeration is realized while external output work.
Described refrigeration modes, using the air-cooled heat exchanger of forced convertion or water-cooled heat exchanger.Using forced convertion
Air-cooled heat exchanger, it is not necessary to set up pipeline, saves interior space；Using water-cooled heat exchanger, available for in-car cooling, also may be used
As in-car refrigerator low-temperature receiver, optimize car facilities；If in-car need not freeze, cold can by fuel cell cooling water system or
Air is taken away.
The expansion system can be one-level, two-stage or three-level.Can be according to the different demands of client and selection different designs
Pattern, has a wide range of application, and can ensure that the reliable implementation of above-mentioned refrigeration system, effectively improves Hydrogen Fuel-cell Vehicles capacity usage ratio.
The expanding machine output work can directly drive automobile advance, air compressor can also be driven to work, can be with
Electrical power storage is further converted into battery.
Brief description of the drawings
Fig. 1 is Figure of abstract.
Fig. 2 is vapour-compression refrigeration cycle arrangement flow chart.
Fig. 3 is vapor-compression refrigerant cycle state parameter figure.
Fig. 4 is high pressure hydrogen cooling flow figure.
Fig. 5 is that vehicle refrigerator flow chart, Fig. 6 are hydrogen cell automobile supply flow chart.
Specific embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.
Case study on implementation 1
As shown in figure 4, a kind of hydrogen cell automobile high pressure hydrogen refrigerating plant, including：High pressure hydrogen tank (1), refrigeration
System (2), the refrigeration system (2) includes expanding machine (3) and heat exchanger (4).This case uses one-stage expansion system, in refrigeration
Under pattern：High pressure hydrogen flows out from high pressure hydrogen tank (1), first passes through piston expansion engine (3) decrease temperature and pressure, external output work,
Then air-cooled heat exchanger (4) released cold quantity is flowed into, in-car is cooled.
Case study on implementation 2
As shown in figure 5, a kind of hydrogen cell automobile high pressure hydrogen refrigerating plant, including：High pressure hydrogen tank (1), refrigeration
System (2), the refrigeration system (2) includes screw type expansion machine (3) and water-cooled heat exchanger (4), in-car refrigerator (7).This case
Example uses three-level expansion system, and high pressure hydrogen is flowed out from high pressure hydrogen tank (1), and expansion systems at different levels are flowed into successively；At different levels swollen
In swollen system, hydrogen flows into one-level scroll expansion machine (3) decrease temperature and pressure, and then external output work flows into one-level water-cooled and change
Hot device (4) absorbs heat；Two grades of scroll expansion machine (3) expansion decompressions are flowed into again, and externally acting flows into the heat exchange of two-stage water-cooling formula
Device (4) absorbs heat；Three-level scroll expansion machine (3) expansion decompression is finally flowed into, externally acting flows into the heat exchange of three-level water-cooled
Device (4) absorbs heat, is finally completed the decompression of hydrogen.Cool storage material is full of in pipeline 1, the cold of high pressure hydrogen is reclaimed, passes through
In-car refrigerator (7) released cold quantity, optimizes car facilities.
Case study on implementation 3
As shown in fig. 6, hydrogen cell automobile air supply system, including：High pressure hydrogen tank (1), refrigeration system (2), expansion
Machine (3), heat exchanger (4), condenser (8), hydrogen heater (9), hydrogen humidifier (10), water tank (11), water knockout drum (12), sky
Gas humidifier (13), fuel cell (14), water knockout drum (15), air heater (16), compressor (17).Anode supply air line：
Hydrogen is flowed out by high pressure hydrogen tank (1), and expansion systems at different levels are flowed into successively, and this case uses compound expansion system；At different levels swollen
In swollen system, hydrogen flows into one-level radial-flow type expanding machine (3) expansion decompression, and external work done flows into the air-cooled heat exchanger of one-level (4)
Released cold quantity, cools to in-car；Two grades of radial-flow type expanding machine (3) expansion decompressions, external work done are flowed into again, then flow into two grades
Air-cooled heat exchanger (4) released cold quantity, cools to in-car；Low-pressure low-temperature hydrogen flows into thermal resistance hydrogen heater (9) and added
Heat is warming up to 70~80 DEG C, flows into film hydrogen humidifier (10) humidification, flows into fuel cell (15) anode, completes electrochemistry anti-
Should, electric work is externally exported, unnecessary hydrogen flows back to supply air line by water knockout drum (12), and water is discharged outside car by water knockout drum (12)；
Negative electrode supply air line：Outdoor air passes through after removal filtration, and 0.4Mpa or so is compressed to through compressor (17), flows into thermal resistance
Air heater (16) heat temperature raising, then film air humidifier (13) humidification is flowed into, finally flow into fuel battery negative pole, and hydrogen
Electrochemical reaction is completed, electric work is externally exported, unnecessary air flows through air heater by water knockout drum (15), to intake air
Tentatively heated, water flows back to circulation waterway through water pump.
As shown in fig. 6, hydrogen fuel cell optimum working temperature is at 70~80 DEG C, hydrogen-oxygen fuel cell is exothermic reaction, is
Maintenance optimum working temperature to fuel cell, it is necessary to cool down.Cooling circulating water pipeline：Cooling water is from water tank (11)
Outflow, is divided into three streams, one flows through hydrogen humidifier (10), and another flows through air humidifier (13), to film humidifier
Moisturizing is carried out, also one flows through the temperature that fuel cell (14) absorbs heat reduction fuel cell.
Fuel cell waste heat is dispersed into air by summer, the condensed device of cooling water (8)；Winter, the condensed device of cooling water
(8) fuel cell waste heat, is dispersed into in-car, in-car is heated.
Claims (5)
1. the present invention provides a kind of hydrogen cell automobile high pressure hydrogen refrigerating plant, including：High pressure hydrogen tank (1) and refrigeration system
Unite (2), the refrigeration system (2) includes one or more levels expansion system, every grade of expansion system includes an expanding machine (3) and one
Individual heat exchanger (4).High pressure hydrogen is flowed out from high pressure hydrogen tank (1), and expansion systems at different levels are flowed into successively；In expansion systems at different levels
In, expanding machine (3) decrease temperature and pressure is first passed through, external output work, subsequently into heat exchanger (4), is car when in-car needs refrigeration
Interior offer cold, when in-car is not required to refrigeration, heat exchange is carried out with environment or fuel cell cooling circulation water.It is characterized in that：
The refrigeration system (2) of the present invention includes one or more levels expansion system, the pressure energy in high pressure hydrogen tank is recycled, simultaneously
Cold is provided for driving cabin, capacity usage ratio is improved.
2. hydrogen cell automobile high pressure hydrogen refrigerating plant according to claim 1, it is characterised in that：The expanding machine
For axial-flow type expanding machine, radial-flow type expanding machine, footpath axial-flow type expanding machine, scroll expansion machine, screw type expansion machine or piston type
Expanding machine.
3. hydrogen cell automobile high pressure hydrogen refrigerating plant according to claim 1, it is characterised in that：Using pressure pair
Flow air-cooled heat exchanger or water-cooled heat exchanger to cool to in-car, when in-car need not cool, cold is by air band
Walk or taken away by fuel cell cooling water system.
4. hydrogen cell automobile high pressure hydrogen refrigerating plant according to claim 1, it is characterised in that：The expansion system
System can be one-level, two grades or three-level.
5. hydrogen cell automobile high pressure hydrogen refrigerating plant according to claim 1, it is characterised in that：The expanding machine
Output work can directly drive automobile advance, air compressor can also be driven to work, and can also be further converted into electric energy storage
Exist in battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354578.0A CN107082006A (en) | 2017-05-18 | 2017-05-18 | Hydrogen cell automobile high pressure hydrogen refrigerating plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354578.0A CN107082006A (en) | 2017-05-18 | 2017-05-18 | Hydrogen cell automobile high pressure hydrogen refrigerating plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107082006A true CN107082006A (en) | 2017-08-22 |
Family
ID=59608004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710354578.0A Pending CN107082006A (en) | 2017-05-18 | 2017-05-18 | Hydrogen cell automobile high pressure hydrogen refrigerating plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107082006A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107901772A (en) * | 2017-10-27 | 2018-04-13 | 江苏理工学院 | A kind of fuel cell temperature difference electricity generation device applied to automobile combines energy supplying system |
| CN107994243A (en) * | 2017-11-27 | 2018-05-04 | 常州工学院 | A kind of hydrogen fuel cell-powered system for refrigerator car |
| CN108615915A (en) * | 2018-04-08 | 2018-10-02 | 江苏理工学院 | A kind of hydrogen fuel cell water supply energy supplying system applied to fire fighting truck |
| CN108657434A (en) * | 2018-04-08 | 2018-10-16 | 江苏理工学院 | A kind of fire airplane for energy supply of being supplied water using hydrogen fuel cell |
| CN109458551A (en) * | 2018-12-17 | 2019-03-12 | 吉林大学 | A kind of hydrogen cell automobile high-pressure hydrogen storing pressure tank energy recyclable device and recovery method |
| CN111347837A (en) * | 2020-05-18 | 2020-06-30 | 杭州制氧机集团股份有限公司 | Automobile heat pump intelligent management system capable of preventing automobile interior from suffocation and method thereof |
| CN114407950A (en) * | 2022-01-17 | 2022-04-29 | 中车青岛四方机车车辆股份有限公司 | Hydrogen internal combustion power vehicle and method based on high-pressure hydrogen expansion work and waste heat utilization |
| CN115513490A (en) * | 2022-09-27 | 2022-12-23 | 南方电网电力科技股份有限公司 | Residual pressure and waste heat utilization device of hydrogen fuel cell system and control method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07139829A (en) * | 1993-11-17 | 1995-06-02 | Ishikawajima Harima Heavy Ind Co Ltd | Refrigeration cycle |
| KR100873250B1 (en) * | 2007-08-17 | 2008-12-11 | 현대자동차주식회사 | Air conditioner for fuel cell vehicle |
| CN102588742A (en) * | 2012-02-22 | 2012-07-18 | 上海舜华新能源系统有限公司 | Refrigeration cycle method and system for 70MPa hydrogen filling station |
| CN203420766U (en) * | 2013-07-24 | 2014-02-05 | 中国科学院工程热物理研究所 | Waste heat comprehensive utilization system of CNGE |
| CN103887544A (en) * | 2012-12-21 | 2014-06-25 | 上海汽车集团股份有限公司 | Heat dissipating device of fuel cell vehicle |
| CN103983036A (en) * | 2014-05-30 | 2014-08-13 | 西安交通大学 | CO2 circulation poly-generation system for waste heat recovery of internal combustion engine |
| CN106337730A (en) * | 2016-09-07 | 2017-01-18 | 石家庄新华能源环保科技股份有限公司 | Hydrogen fuel engine system |
-
2017
- 2017-05-18 CN CN201710354578.0A patent/CN107082006A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07139829A (en) * | 1993-11-17 | 1995-06-02 | Ishikawajima Harima Heavy Ind Co Ltd | Refrigeration cycle |
| KR100873250B1 (en) * | 2007-08-17 | 2008-12-11 | 현대자동차주식회사 | Air conditioner for fuel cell vehicle |
| CN102588742A (en) * | 2012-02-22 | 2012-07-18 | 上海舜华新能源系统有限公司 | Refrigeration cycle method and system for 70MPa hydrogen filling station |
| CN103887544A (en) * | 2012-12-21 | 2014-06-25 | 上海汽车集团股份有限公司 | Heat dissipating device of fuel cell vehicle |
| CN203420766U (en) * | 2013-07-24 | 2014-02-05 | 中国科学院工程热物理研究所 | Waste heat comprehensive utilization system of CNGE |
| CN103983036A (en) * | 2014-05-30 | 2014-08-13 | 西安交通大学 | CO2 circulation poly-generation system for waste heat recovery of internal combustion engine |
| CN106337730A (en) * | 2016-09-07 | 2017-01-18 | 石家庄新华能源环保科技股份有限公司 | Hydrogen fuel engine system |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107901772A (en) * | 2017-10-27 | 2018-04-13 | 江苏理工学院 | A kind of fuel cell temperature difference electricity generation device applied to automobile combines energy supplying system |
| CN107994243A (en) * | 2017-11-27 | 2018-05-04 | 常州工学院 | A kind of hydrogen fuel cell-powered system for refrigerator car |
| CN108615915A (en) * | 2018-04-08 | 2018-10-02 | 江苏理工学院 | A kind of hydrogen fuel cell water supply energy supplying system applied to fire fighting truck |
| CN108657434A (en) * | 2018-04-08 | 2018-10-16 | 江苏理工学院 | A kind of fire airplane for energy supply of being supplied water using hydrogen fuel cell |
| CN109458551A (en) * | 2018-12-17 | 2019-03-12 | 吉林大学 | A kind of hydrogen cell automobile high-pressure hydrogen storing pressure tank energy recyclable device and recovery method |
| CN111347837A (en) * | 2020-05-18 | 2020-06-30 | 杭州制氧机集团股份有限公司 | Automobile heat pump intelligent management system capable of preventing automobile interior from suffocation and method thereof |
| CN114407950A (en) * | 2022-01-17 | 2022-04-29 | 中车青岛四方机车车辆股份有限公司 | Hydrogen internal combustion power vehicle and method based on high-pressure hydrogen expansion work and waste heat utilization |
| CN114407950B (en) * | 2022-01-17 | 2024-03-22 | 中车青岛四方机车车辆股份有限公司 | Hydrogen internal combustion power vehicle and method based on high-pressure hydrogen expansion work and waste heat utilization |
| CN115513490A (en) * | 2022-09-27 | 2022-12-23 | 南方电网电力科技股份有限公司 | Residual pressure and waste heat utilization device of hydrogen fuel cell system and control method thereof |
| CN115513490B (en) * | 2022-09-27 | 2023-10-31 | 南方电网电力科技股份有限公司 | Residual pressure and waste heat utilization device of hydrogen fuel cell system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107082006A (en) | Hydrogen cell automobile high pressure hydrogen refrigerating plant | |
| CN108556660B (en) | Electric automobile thermal management system | |
| US20240003272A1 (en) | Multistage-compression energy storage apparatus and method based on carbon dioxide gas-liquid phase change | |
| CN107086319A (en) | Hydrogen cell automobile high-pressure hydrogen storing pressure tank energy retracting device | |
| US20150380783A1 (en) | Method and device providing the temperature regulation of a rechargeable electrical energy storage battery | |
| JP4590833B2 (en) | Mobile body with cooling system | |
| CN111890956A (en) | Thermoelectric generation and low-temperature phase change cooling heat storage system of fuel cell vehicle | |
| CN111361391B (en) | Heat management control method based on automobile integrated heat management unit | |
| JP2003217641A (en) | Fuel cell system | |
| CN106784926A (en) | A kind of high-efficiency fuel cell cooling heating and power generation system | |
| CN114604056B (en) | Fuel cell automobile whole automobile thermal management system | |
| CN107246739A (en) | Hydrogen internal combustion engine automobile high pressure hydrogen refrigerating plant | |
| CN201095301Y (en) | Air-conditioner for vehicle | |
| CN212171867U (en) | New energy automobile integrated form heat management unit | |
| CN113809355A (en) | Fuel cell circulating water cooling system using expander outlet cold air | |
| CN109774411B (en) | Electric automobile air conditioner refrigeration system and method based on high-pressure hydrogen pressure relief | |
| CN110359973B (en) | Compressor complementary energy recovery system | |
| CN219626748U (en) | Battery thermal management system of hybrid power commercial vehicle | |
| KR101219389B1 (en) | Battery cooling apparatus using intermediate heat exchanger | |
| CN207374063U (en) | Hydrogen cell automobile high pressure hydrogen refrigerating plant | |
| CN207542327U (en) | Hydrogen cell automobile high-pressure hydrogen storing pressure tank energy retracting device | |
| CN206369396U (en) | A kind of dual system circulating water cooling device | |
| CN219226408U (en) | Battery module compression refrigeration integrated system for unmanned aerial vehicle | |
| CN219096444U (en) | Automotive thermal management system and new energy automobile | |
| CN208820024U (en) | A kind of direct-expansion type battery thermal management system with natural cooling function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170822 |
|
| RJ01 | Rejection of invention patent application after publication |