CN206231187U - High efficiency smart heat pump type air conditioning system used for electric vehicle - Google Patents
High efficiency smart heat pump type air conditioning system used for electric vehicle Download PDFInfo
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- CN206231187U CN206231187U CN201621253299.2U CN201621253299U CN206231187U CN 206231187 U CN206231187 U CN 206231187U CN 201621253299 U CN201621253299 U CN 201621253299U CN 206231187 U CN206231187 U CN 206231187U
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- heat
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- electric expansion
- expansion valve
- magnetic valve
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Abstract
The utility model is related to high efficiency smart heat pump type air conditioning system used for electric vehicle.The air-conditioning system that purpose is to provide has that energy-efficient, low cost, reliability are high, realize drive system of electric automobile and the characteristics of heat pump type air conditioning system thermal cycle integrated management.Technical scheme is：A kind of high efficiency smart heat pump air conditioner management system used for electric vehicle, it is characterised in that the management system includes：Motor cycle water main system, sequentially circulates connection and is formed by the first heat-exchanging loop of water pump, the first three-way magnetic valve, the first electric expansion valve and motor heat exchanger by water pipe, and circulating water temperature sensor is equipped on the water pipe；Intelligent heat pump air conditioner master controller obtains the temperature of recirculated water by circulating water temperature sensor, so as to control the aperture of the first electric expansion valve, realizes effective radiating of motor driven systems.
Description
Technical field
The utility model is related to a kind of electric automobile air-conditioning system, is specifically related to the electronic of electric automobile integrated thermal management
Automobile heat pump air-conditioning system.
Background technology
At present, electric automobile generally realizes heat-production functions using PTC auxiliary electrical heater modes in the winter time, and heating efficiency is low,
Power consumption is big, has a strong impact on the course continuation mileage of electric automobile, causes electric automobile to decline than summer efficiency in the winter time, because
This, air source heat pump system technology receives concern both domestic and external.
Existing air source heat pump technology underuses the performance of motor；The heat to motor driven systems is not realized fully
Amount is reclaimed；In the winter time, especially under Northeast Cold Area, heating operation, heat pump heat exchanging Energy Efficiency Ratio is low, easy frosting；In summer, system
Under chill formula, fail to make full use of air conditioner cooling system to carry out auxiliary heat dissipation to motor driven systems.
Utility model content
For defect of the prior art, the purpose of this utility model is to provide a kind of high efficiency smart heat pump used for electric vehicle
Air-conditioning system, the air-conditioning system has that energy-efficient, low cost, reliability are high, realize drive system of electric automobile and heat pump is empty
The characteristics of adjusting system thermal cycle integrated management.
The purpose of this utility model is achieved through the following technical solutions：
A kind of high efficiency smart heat pump air conditioner management system used for electric vehicle, it is characterised in that the management system includes：
Motor cycle water main system, by water pump, the first three-way magnetic valve, the first electric expansion valve and motor heat exchanger
First heat-exchanging loop sequentially circulates connection and is formed by water pipe, and circulating water temperature sensor is equipped on the water pipe；Intelligent heat pump
Air-conditioning master controller obtains the temperature of recirculated water by circulating water temperature sensor, so as to control opening for the first electric expansion valve
Degree, realizes effective radiating of motor driven systems；
Motor cycle water accessory system, first is changed by the second electric expansion valve, the 3rd electric expansion valve, outdoor heat exchanger
First heat-exchanging loop of hot loop, the second three-way magnetic valve and indoor heat exchanger sequentially circulates connection and is formed by water pipe；Institute
State the water pipe that the 3rd interface of the first three-way magnetic valve is also connected between the second electric expansion valve and the 3rd electric expansion valve, institute
State the water pipe that the 3rd interface of the second three-way magnetic valve is also connected between motor heat exchanger and water pump；Intelligent heat pump air conditioner master control
Device processed comprehensively utilizes the heat of motor driven systems by each accessory system of controlled motor recirculated water, realizes that heat pump air conditioner exists
Heat, the high-efficiency operation under refrigeration mode；
Heat pump air conditioner main system, by the second heat-exchanging loop of outdoor heat exchanger, pattern switching loop, indoor heat exchanger
Two heat-exchanging loops, the 3rd three-way magnetic valve and four-way valve sequentially circulate connection and are formed by the liquid pipeline that freezes；The pattern is cut
In gaining road：Tie point is concatenated with the 3rd magnetic valve by the second magnetic valve and formed, second route in parallel with tie point
4th electric expansion valve concatenates to be formed with the 5th electric expansion valve, the line and the 4th electricity of the second magnetic valve and the 3rd magnetic valve
Drier receiver is accessed between the line of sub- expansion valve and the 5th electric expansion valve；Two other interface of four-way valve connects respectively again
The refrigerating fluid import of logical motor compressor and the refrigerating fluid outlet of motor compressor；
Heat pump air conditioner accessory system, second is exchanged heat back by the 3rd interface of the 3rd three-way magnetic valve, motor heat exchanger
Second heat-exchanging loop of road, the first magnetic valve and indoor heat exchanger sequentially circulates connection and is formed by the liquid pipeline that freezes；Intelligence
Heat pump air conditioner master controller in cooling mode, can be strengthened to motor driven systems by controlling heat pump air conditioner accessory system
Heat dispersion.
Intelligent heat pump air conditioner master controller is respectively by connecting line and water pump, the electric machine controller for controlled motor, prison
Circulating water temperature sensor, the first three-way magnetic valve, the second three-way magnetic valve, of measured motor recirculated water main system conduit temperature
Three three-way magnetic valves, the first electric expansion valve, the second electric expansion valve, the 3rd electric expansion valve, the 4th electric expansion valve, the 5th
Electric expansion valve, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve, four-way valve, motor compressor, outdoor temperature sensor,
Indoor temperature transmitter and indoor temperature regulator are electrically connected.By intelligent coordination control, it is right under heating mode fully to realize
The heat recovery of motor driven systems, to the auxiliary heat dissipation of motor driven systems under refrigeration mode, realizes heat pump type air conditioning system system
High-efficiency operation under heat, refrigerating state.
The intelligent heat pump air conditioner master controller also passes through connecting line and first to motor heat exchanger auxiliary heat-exchanging respectively
Electronic fan, the second electronic fan to indoor heat exchanger auxiliary heat-exchanging and the 3rd electronics to outdoor heat exchanger auxiliary heat-exchanging
Fan is electrically connected.
Compared with prior art, the utility model has the advantages that：
(1) the utility model realizes the integrated pipe to electric automobile heat-pump air-conditioning system and motor driven systems heat
Reason, the PTC relative to current electric automobile heats mode, can improve electric automobile course continuation mileage more than 30% under heating mode.
(2) the utility model, using motor driven systems an as pyrotoxin, makes full use of electricity under air-conditioning heating pattern
The heating performance of machine, reclaims the heat of motor driven systems, and the load of car external heat exchanger, realizes heat pump intelligence when mitigation is heated
Can control, the Energy Efficiency Ratio of raising system.
(3) the utility model realizes the intelligence that heat pump type air conditioning system is heated, freezed by reclaiming the heat of motor driven systems
Energyization is controlled, and efficiently solves the problems, such as defrosting during heating operation.
(4) the utility model is under air conditioner refrigerating pattern, to avoid motor driven systems from overheating, in motor cycle water principal series
Auxiliary air conditioner cooling system on system, strengthen motor driven systems heat dispersion, it is ensured that motor driven systems it is thermally safe, together
When avoid fire damage to it, improve the reliability of system, extend system lifetim.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model embodiment.
Fig. 2 is one of the utility model embodiment heating operations schematic diagram.
Fig. 3 is two schematic diagrames of the utility model embodiment heating operations.
Fig. 4 is three schematic diagrames of the utility model embodiment heating operations.
Fig. 5 is one of the utility model embodiment process of refrigerastion schematic diagram.
Fig. 6 is two schematic diagrames of the utility model embodiment process of refrigerastion.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is described in detail to the technical solution of the utility model.
As shown in figure 1, the utility model embodiment provides a kind of high efficiency smart heat pump type air conditioning system, including water pump 1, electricity
Machine controller 2, motor 3, circulating water temperature sensor 4, the first three-way magnetic valve 5, the second three-way magnetic valve the 18, the 3rd 3 are powered
Magnet valve 19, the first electric expansion valve 6, the second electric expansion valve 11, the 3rd electric expansion valve 12, the 4th electric expansion valve 20,
Five electric expansion valves 22, the first magnetic valve 8, the second magnetic valve 15, the 3rd magnetic valve 16, motor heat exchanger (buyable acquisition) 9,
Outdoor heat exchanger 14, indoor heat exchanger 17, the first electronic fan 7, the second electronic fan 10, the 3rd electronic fan 13, reservoir are done
Dry device 21, four-way valve 23, motor compressor 24, intelligent heat pump air conditioner master controller 25, outdoor temperature sensor 26, indoor temperature
Sensor 27, indoor temperature regulator 28.
Wherein, intelligent heat pump air conditioner master controller 25 is respectively adopted connecting line and (is used for electricity with water pump 1, electric machine controller 2
The working condition of machine 3 is controlled), circulating water temperature sensor 4, the first three-way magnetic valve 5, the second three-way magnetic valve 18,
Three three-way magnetic valves 19, the first electric expansion valve 6, the second electric expansion valve 11, the 3rd electric expansion valve 12, the 4th electronic expansion
Valve 20, the 5th electric expansion valve 22, the first magnetic valve 8, the second magnetic valve 15, the 3rd magnetic valve 16, the first electronic fan 7,
Two electronic fans 10, the 3rd electronic fan 13, four-way valve 23, motor compressor 24, outdoor temperature sensor 26, indoor temperature are passed
Sensor 27, indoor temperature regulator 28 are electrically connected, and by intelligent coordination control, fully realize the heat pipe to motor driven systems
Reason, realize air-conditioning system heat, the high-efficiency operation under refrigerating state.
Wherein, by water pump 1, the first three-way magnetic valve 5, the first electric expansion valve 6, the heat-exchanging loop of motor heat exchanger 9 first
Motor cycle water main system is sequentially constituted, the heat that motor driven systems (including motor 3 and electric machine controller) are produced is by passing through
The motor cycle water of the heat-exchanging loop of motor heat exchanger first is distributed；
Intelligent heat pump air conditioner master controller 25 is by circulating water temperature sensor 4 (for monitoring motor cycle water main system
The temperature of water pipe), the temperature of recirculated water is obtained, the aperture of the first electric expansion valve 6 is controlled, reach the mesh of motor effectively radiating
's.
Wherein, the second electric expansion valve 11, the 3rd electric expansion valve 12, outdoor heat exchange of connection are sequentially circulated by water pipe
First heat-exchanging loop of device 14, the second three-way magnetic valve 18, the first heat-exchanging loop composition motor cycle water of indoor heat exchanger 17
Accessory system.Second electric expansion valve 11, the first heat-exchanging loop of indoor heat exchanger 17, the second three-way magnetic valve 18 are constituted
The accessory system of motor cycle water first.3rd electric expansion valve 12, the first heat-exchanging loop, the two or three of outdoor heat exchanger 14
Three-way electromagnetic valve 18 constitutes motor cycle the second accessory system of water.
Wherein, the path of the controlled motor circulation of the first three-way magnetic valve 5, motor cycle water is from the first threeway electromagnetism
One interface input of valve 5, shutdown mode, control circulation are opened by controlling two other interface of the first three-way magnetic valve 5
Switching between water main system and accessory system.Second electric expansion valve 11 and the control recirculated water first of the 3rd electric expansion valve 12
Switching between accessory system and the second accessory system.Intelligent heat pump air conditioner master controller 25 by indoor temperature regulator 28,
Indoor temperature transmitter 27 obtains indoor temperature preset value and actual temperature, adjusts the aperture of the second electric expansion valve 11；Intelligence
Heat pump air conditioner master controller 25 is obtained by outdoor temperature sensor 26, indoor temperature transmitter 27, indoor temperature regulator 28
Indoor and outdoor actual temperature and indoor temperature preset value, adjust the aperture of the 3rd electric expansion valve 12, realize the height of circulation
Effect is utilized.
Wherein, two interfaces of the second three-way magnetic valve 18 connect the accessory system of recirculated water first and the second auxiliary system respectively
The output of system, the 3rd interface connection recirculated water main system, the second three-way magnetic valve 18 of control can effectively select circulation to lead to
Road.
Wherein, exchanged heat back by the heat-exchanging loop of outdoor heat exchanger 14 second, pattern switching loop, indoor heat exchanger 17 second
Road, the 3rd three-way magnetic valve 19 and four-way valve 23 sequentially circulate connection and form heat pump air conditioner main system by the liquid pipeline that freezes；
In the pattern switching loop：The second magnetic valve of tie point 15 concatenates formation with the 3rd magnetic valve 16, in parallel with tie point
Second route the 4th electric expansion valve 20 formation, the second magnetic valve and the 3rd magnetic valve are concatenated with the 5th electric expansion valve 22
Line and the 4th electric expansion valve and the line of the 5th electric expansion valve between access drier receiver 21.Four-way valve 23
Two other interface is respectively turned on the refrigerating fluid import of motor compressor 24 and the refrigerating fluid outlet of motor compressor 24 again；
Wherein, the first magnetic valve 8, motor heat exchanger 9, the 3rd three-way magnetic valve 19 composition heat pump air conditioner accessory system.
Wherein, three interfaces of the 3rd three-way magnetic valve 19 are respectively communicated with indoor heat exchanger 17, the heat exchange of four-way valve 23, motor
Device 9, the switching for controlling the mode of operation of the 3rd three-way magnetic valve 19 to realize between heat pump air conditioner main system and accessory system.
All of above part and the equal buyable of device are obtained.
The course of work and operation principle of the present embodiment be：
(1) course of work and operation principle during heating operation：
Heating operations are divided into 3 parts to be carried out.Heating operations one are as shown in Figure 2.It is rapid system when heat pump is opened
Heat, the controlled motor controller 2 of intelligent heat pump air conditioner master controller 25, makes motor generate heat rapidly.Meanwhile, control the first threeway electromagnetism
Valve 5, the second electric expansion valve 11, the second three-way magnetic valve 18, open motor cycle the first accessory system of water；The heat of motor leads to
Cross recirculated water to be heated directly to indoor heat exchanger 17, reach the effect for heating, intelligent heat pump air conditioner master controller 25 is by interior
Thermoregulator 28, indoor temperature transmitter 27 obtain indoor temperature (i.e. temperature in car cage) preset value and actual temperature,
The aperture of the second electric expansion valve 11 is adjusted, default effect is reached.
Heating operations two are as shown in figure 3, when the difference of indoor temperature preset value and actual temperature is reduced to initial time
When 80%, intelligent heat pump air conditioner master controller 25 controls the 3rd electric expansion valve 12, the second three-way magnetic valve 18, opens motor and follows
The accessory system of ring water second, is heated with recirculated water to outdoor heat exchanger 14, reduces indoor/outdoor temperature-difference.Intelligent heat pump air conditioner master control
Device 25 obtains indoor temperature preset value and actual temperature by indoor temperature regulator 28, indoor temperature transmitter 27, regulation the
The aperture of two electric expansion valves 11.Meanwhile, by outdoor temperature sensor 26, outdoor temperature is obtained, control the 3rd electronic expansion
The aperture of valve 12, improves the heat exchange efficiency of outdoor heat exchanger 14, and for it defrosts.
Meanwhile, heat pump air conditioner main system is opened in the intelligent control of heat pump air conditioner master controller 25, is heating indoor.
Heat pump circulating system：Motor compressor 24-->Four-way valve 23-->3rd three-way magnetic valve 19-->Indoor heat exchanger
17-->3rd magnetic valve 16-->Drier receiver 21-->5th electric expansion valve 22-->Outdoor heat exchanger 14-->Four-way valve
23-->Motor compressor 24.
Heating operations three as shown in figure 4, when indoor temperature progressively close to indoor temperature preset value when, intelligent heat pump air conditioner is total
The control of controller 25 aperture of second electric expansion valve 11 is gradually reduced, until closing motor cycle the first accessory system of water.Equally
, by outdoor temperature sensor 26, outdoor temperature is obtained, the aperture of the 3rd electric expansion valve 12 is controlled, improve outdoor heat exchange
The heat exchange efficiency of device 14, and defrost.
(2) course of work and operation principle during refrigerating operaton
Heat pump air conditioner main system is opened in the intelligent control of heat pump air conditioner master controller 25, realizes indoor refrigeration.
Cooling cycle system：Motor compressor 24-->Four-way valve 23-->Outdoor heat exchanger 14-->Second magnetic valve 15-->
Drier receiver 21-->4th electric expansion valve 20-->Indoor heat exchanger 17-->3rd three-way magnetic valve 19-->Four-way valve
23-->Motor compressor 24.
In cooling mode, intelligent heat pump air conditioner master controller 25 judges recirculated water by circulating water temperature sensor 4
Temperature, when circulating water temperature is less than temperature threshold, only opens motor cycle water main system, and motor drivetrain is given by water pump 1
System radiating, as shown in Figure 5.When circulating water temperature is higher than temperature threshold, intelligent heat pump air conditioner master controller 25 opens the first electricity
Magnet valve 8, switches the working condition of the 3rd three-way magnetic valve 19, uses air-conditioning system auxiliary heat dissipation, further reduces circulating water temperature,
Preferable radiating effect is reached, as shown in Figure 6.
The utility model realizes the integrated management to electric automobile heat-pump air-conditioning system and motor driven systems heat, phase
PTC for current electric automobile heats mode, can improve electric automobile course continuation mileage more than 30% under heating mode.
The utility model, using motor driven systems an as pyrotoxin, makes full use of motor under air-conditioning heating pattern
Heating performance, reclaim the heat of motor driven systems, the load of mitigation car external heat exchanger when heating realizes heat pump intelligence
Control, improves the Energy Efficiency Ratio of system.
The utility model realizes the intellectuality that heat pump type air conditioning system is heated, freezed by reclaiming the heat of motor driven systems
Control, efficiently solves the problems, such as defrosting during heating operation.
The utility model under air conditioner refrigerating pattern, to avoid motor driven systems from overheating, in motor cycle water main system
Upper auxiliary air conditioner cooling system, strengthen motor driven systems radiating, it is ensured that motor driven systems it is thermally safe, while avoiding
To its fire damage, the reliability of system is improve, extend system lifetim.
Specific embodiment of the utility model is described above.It should be mentioned that the utility model not office
It is limited to specific implementation method, those skilled in the art can within the scope of the claims make various deformations or amendments, this
Have no effect on substance of the present utility model.
Claims (2)
1. a kind of high efficiency smart heat pump air conditioner management system used for electric vehicle, it is characterised in that the management system includes：
Motor cycle water main system, is changed by water pump (1), the first three-way magnetic valve (5), the first electric expansion valve (6) and motor
First heat-exchanging loop of hot device (9) sequentially circulates connection and is formed by water pipe, and circulating water temperature sensor is equipped on the water pipe
(4)；
Motor cycle water accessory system, by the second electric expansion valve (11), the 3rd electric expansion valve (12), outdoor heat exchanger (14)
The first heat-exchanging loop, the second three-way magnetic valve (18) and indoor heat exchanger (17) the first heat-exchanging loop by water pipe sequentially
Circulation connection is formed；3rd interface of first three-way magnetic valve (5) also connects the second electric expansion valve (11) and the 3rd
Water pipe between electric expansion valve (12), the 3rd interface of second three-way magnetic valve also connects motor heat exchanger and water pump
Between water pipe；
Heat pump air conditioner main system, second is changed by the second heat-exchanging loop of outdoor heat exchanger, pattern switching loop, indoor heat exchanger
Hot loop, the 3rd three-way magnetic valve (19) and four-way valve (23) sequentially circulate connection and are formed by the liquid pipeline that freezes；The mould
In formula switching circuit：Tie point is concatenated with the 3rd magnetic valve (16) by the second magnetic valve (15) and formed, in parallel with tie point
Second the 4th electric expansion valve (20) of route concatenate formation with the 5th electric expansion valve (22), the second magnetic valve and the 3rd electric
Drier receiver (21) is accessed between the line of magnet valve and the 4th electric expansion valve and the line of the 5th electric expansion valve；Four-way
Two other interface of valve is respectively turned on the refrigerating fluid import of motor compressor (24) and the refrigerating fluid outlet of motor compressor again；
Heat pump air conditioner accessory system, by the 3rd interface of the 3rd three-way magnetic valve, the second heat-exchanging loop of motor heat exchanger,
Second heat-exchanging loop of one magnetic valve (8) and indoor heat exchanger sequentially circulates connection and is formed by the liquid pipeline that freezes；
Intelligent heat pump air conditioner master controller is respectively by connecting line and water pump, the electric machine controller for controlled motor, monitoring electricity
Circulating water temperature sensor, the first three-way magnetic valve, the second three-way magnetic valve, the three or three of machine recirculated water main system conduit temperature
Three-way electromagnetic valve, the first electric expansion valve, the second electric expansion valve, the 3rd electric expansion valve, the 4th electric expansion valve, the 5th electronics
Expansion valve, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve, four-way valve, motor compressor, outdoor temperature sensor, interior
Temperature sensor and indoor temperature set device electrical connection.
2. high efficiency smart heat pump air conditioner management system used for electric vehicle according to claim 1, it is characterised in that：The intelligence
Can heat pump air conditioner master controller also respectively by connecting line and the first electronic fan (7) to motor heat exchanger auxiliary heat-exchanging, right
Second electronic fan (10) and the 3rd electronic fan to outdoor heat exchanger auxiliary heat-exchanging of indoor heat exchanger auxiliary heat-exchanging
(13) electrically connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253299.2U CN206231187U (en) | 2016-11-22 | 2016-11-22 | High efficiency smart heat pump type air conditioning system used for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253299.2U CN206231187U (en) | 2016-11-22 | 2016-11-22 | High efficiency smart heat pump type air conditioning system used for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206231187U true CN206231187U (en) | 2017-06-09 |
Family
ID=58991641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621253299.2U Withdrawn - After Issue CN206231187U (en) | 2016-11-22 | 2016-11-22 | High efficiency smart heat pump type air conditioning system used for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206231187U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515367A (en) * | 2016-11-22 | 2017-03-22 | 浙江西盈科技股份有限公司 | Efficient and intelligent heat pump air conditioning system for electric automobile |
| CN107791781A (en) * | 2017-08-08 | 2018-03-13 | 杭州三花研究院有限公司 | Automotive air-conditioning system |
| US11358438B2 (en) | 2017-08-08 | 2022-06-14 | Hangzhou Sanhua Research Institute Co., Ltd. | Automotive air conditioning system |
-
2016
- 2016-11-22 CN CN201621253299.2U patent/CN206231187U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515367A (en) * | 2016-11-22 | 2017-03-22 | 浙江西盈科技股份有限公司 | Efficient and intelligent heat pump air conditioning system for electric automobile |
| CN107791781A (en) * | 2017-08-08 | 2018-03-13 | 杭州三花研究院有限公司 | Automotive air-conditioning system |
| US11358438B2 (en) | 2017-08-08 | 2022-06-14 | Hangzhou Sanhua Research Institute Co., Ltd. | Automotive air conditioning system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170609 Effective date of abandoning: 20230606 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170609 Effective date of abandoning: 20230606 |