CN106808969A - Return air regulation control method of air conditioning system of electric automobile and air conditioning system thereof - Google Patents
Return air regulation control method of air conditioning system of electric automobile and air conditioning system thereof Download PDFInfo
- Publication number
- CN106808969A CN106808969A CN201710148554.XA CN201710148554A CN106808969A CN 106808969 A CN106808969 A CN 106808969A CN 201710148554 A CN201710148554 A CN 201710148554A CN 106808969 A CN106808969 A CN 106808969A
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- air
- conditioning system
- pipeline
- relative humidity
- return air
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000011521 glass Substances 0.000 claims abstract description 11
- 241000736199 Paeonia Species 0.000 claims description 12
- 235000006484 Paeonia officinalis Nutrition 0.000 claims description 12
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 239000005357 flat glass Substances 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000010257 thawing Methods 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
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
-
- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00664—Construction or arrangement of damper doors
-
- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00785—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models by the detection of humidity or frost
-
- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00835—Damper doors, e.g. position control
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a return air regulation control method of an air conditioning system of an electric automobile and the air conditioning system, wherein the method comprises the following steps: an electric air door arranged at the interface of the air supply pipeline, the fresh air pipeline and the return air pipeline gradually closes the fresh air pipeline and opens the return air pipeline, and the return air ratio is gradually increased from a fresh air state; a current fogging detector or a relative humidity sensor arranged on the inner surface of the front glass window respectively collects current or relative humidity signals; and the data processing module adjusts the electric air door according to the current or relative humidity signal and a preset fogging threshold value to ensure the maximum return air ratio of the front glass window in a non-fogging state. The method and the air conditioning system can use return air as much as possible under the condition of ensuring that the window glass of the vehicle is not fogged, and can effectively reduce indoor heat load particularly under the heating working condition in winter.
Description
Technical field
The present invention relates to the return air adjustment control method and its device of automotive air-conditioning system.More particularly, to a kind of electricity
The return air adjustment control method and its device of electrical automobile air-conditioning system.
Background technology
Air-conditioning system on electric automobile takes a large amount of energy consumptions of battery, especially in the winter time under heating mode, serious shadow
The course continuation mileage of electric automobile is rung.It is a kind of hand for being effectively saved battery power consumption to reduce car room indoor heat load using return air
Section.But the water capacity high of return air will make glass for vehicle window be more prone to fogging and influence driving safety, glass for vehicle window fogging
It is then matter of utmost importance that air-conditioning system need to be solved using return air.
Process using return air can gradually increase the water capacity of car room air, can also make the higher influence car of car indoor temperature
The comfortableness of indoor environment., to the comfortableness of ambient parameters by requiring, the temperature in general winter car room will for human body
Ask more than 20 DEG C, below 26 DEG C, relative humidity requirement control is between 40%-60% for the temperature requirement in summer car room.
Persistently can increase the higher relative humidity of car indoor temperature using return air under heating condition in the winter time.Solve using during return air
Adverse effect to human comfort is also that automotive air-conditioning system of the present invention needs the problem of consideration.
Accordingly, it is desirable to provide a kind of blown under conditions of fogging is prevented with maximum air returning ratio, disclosure satisfy that in not shadow
The saving energy consumption of maximum possible under the conditions of sound automobile driving safe.
The content of the invention
The invention solves the problems that first technical problem be to provide and a kind of can prevent the condition of automobile front windshield fogging
Under the return air adjustment control method of electric automobile air-conditioning system blown with maximum air returning ratio.
In order to solve the above technical problems, the present invention uses following technical proposals：
The return air adjustment control method of electric automobile air-conditioning system, comprises the following steps：
It is arranged on air supply duct and progressively closes off fresh air pipeline opening with fresh air pipeline, the MOD of return air duct interface
Return air duct, air returning ratio is gradually increased by all-fresh air state；Be arranged on Chinese herbaceous peony windowpane inner surface electric current fogging detector or
Relative humidity sensor gathers electric current or relative humidity signal respectively；Data processing module is believed according to the electric current or relative humidity
Number and default fogging threshold values adjust MOD, it is ensured that Chinese herbaceous peony windowpane maximum air returning ratio not under fogging state.The present invention
Method by adjusting the MOD new return air mixed proportion can be made adjustable, while in order to ensure that front glass window is constantly in
The state of fogging, does not set electric current fogging detector or relative humidity sensor monitors glass surface in Chinese herbaceous peony glazing surface
Fogging situation, MOD gradually increases air returning ratio by all-fresh air state, is adjusted according to the electric current or relative humidity signal for monitoring
Section electric air door is until the maximum air returning ratio that Chinese herbaceous peony windowpane fogging does not occur.
Preferably, the above method further includes step：
Temperature and relative humidity signal in Temperature Humidity Sensor collecting vehicle in the car is set；The data processing module
According to temperature and relative humidity signal and default humiture threshold values, the in-car temperature of rotating speed reduction of air-conditioning compressor is adjusted
Degree.In order to prevent the comfort level for using return air to influence environment inside car, by increasing the temperature in the Temperature Humidity Sensor monitoring car
The change of degree and relative humidity, suitable threshold temperature in data processing module setting car room, when car indoor temperature exceedes the valve
The rotating speed reduction environment inside car temperature of control signal regulation air-conditioning compressor is given during value.
The invention solves the problems that second technical problem be to provide and a kind of can prevent the condition of automobile front windshield fogging
Under the electric automobile air-conditioning system blown with maximum air returning ratio.
In order to solve the above technical problems, the present invention uses following technical proposals：
Electric automobile air-conditioning system includes ducting system, control system and heat pump type air conditioning system, and the ducting system includes
Fresh air pipeline and return that the air supply duct blown to in-car, the breeze fan being arranged in air supply duct are connected with air supply duct
Wind pipeline and it is arranged on air supply duct and fresh air pipeline, the MOD of return air duct connectivity part；Control system includes data
Processing module, the electric current fogging detector/relative humidity sensor for being arranged on Chinese herbaceous peony windowpane inner surface and control are described electronic
The proportional controller of air door switch, the signal that the electric current fogging detector/relative humidity sensor will be collected sends number to
According to processing module, the control MOD folding of data processing module passing ratio demodulator；The heat pump type air conditioning system includes pressure
Contracting machine, indoor condenser, indoor evaporator, outdoor heat exchanger, outdoor heat exchanger blower fan, the first valve, gas-liquid separator, threeway
Valve, first throttle device and second throttling device, the outlet of the compressor pass through pipeline and the indoor condenser, the first valve
Door, outdoor heat exchanger, triple valve, first throttle device, indoor evaporator and gas-liquid separator are sequentially connected in series, the threeway
The bypass of valve is connected by pipeline with the outlet of indoor evaporator, and the second throttling device is arranged in parallel at the first valve；
The indoor condenser and indoor evaporator are arranged in air supply duct.
Preferably, the data processing module further includes that measuring the Temperature Humidity Sensor of in-car humiture and control presses
The frequency converter of contracting machine rotating speed.
Preferably, the air-conditioning system further includes the auxiliary electric heater unit being arranged in the air supply duct.
Preferably, the exit of the air supply duct is provided with antifog defroster able to turn on or off, face air outlet and foot and send
Air port.
Beneficial effects of the present invention are as follows：
The present invention can as far as possible use return air in the case of guarantee glass for vehicle window not fogging, especially heat in the winter time
Indoor heat load can be effectively reduced under operating mode, the refrigerating/heating amount needed for reduction system solves battery power consumption and extends electronic vapour
The course continuation mileage of car.Simultaneously the monitoring system of car indoor environment ensure that using during return air car room environmental it is comfortable
Property, it is to avoid the influence using return air to car room environmental comfortableness.
Brief description of the drawings
Specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the block diagram of control method of the invention.
Fig. 2 shows the block diagram of control method of the invention.
Fig. 3 shows the structural representation of air-conditioning system of the invention.
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
As depicted in figs. 1 and 2, a kind of return air adjustment control method of electric automobile air-conditioning system, comprises the following steps：
It is arranged on air supply duct and progressively closes off fresh air pipeline opening with fresh air pipeline, the MOD of return air duct interface
Return air duct, air returning ratio is gradually increased by all-fresh air state；Be arranged on Chinese herbaceous peony windowpane inner surface electric current fogging detector or
Relative humidity sensor 1 gathers electric current or relative humidity signal respectively；Data processing module 2 is according to electric current or relative humidity signal
MOD is adjusted with default fogging threshold values, it is ensured that Chinese herbaceous peony windowpane maximum air returning ratio not under fogging state.It is of the invention
Method can make new return air mixed proportion adjustable by adjusting MOD, while in order to ensure that front glass window is constantly in not fogging
State, in Chinese herbaceous peony glazing surface, the fogging feelings that electric current fogging detector or relative humidity sensor monitor glass surface are set
Condition, MOD gradually increases air returning ratio by all-fresh air state, electronic according to electric current or the relative humidity signal regulation for monitoring
Air door is until the maximum air returning ratio that Chinese herbaceous peony windowpane fogging does not occur.
The method of the present invention further includes step：
Temperature and relative humidity signal in the collecting vehicle of Temperature Humidity Sensor 3 in the car is set；Data processing module 2
According to temperature and relative humidity signal and default humiture threshold values, the in-car temperature of rotating speed reduction of air-conditioning compressor is adjusted
Degree.In order to prevent use return air influence environment inside car comfort level, by increase the temperature in the monitoring car of Temperature Humidity Sensor 3 and
The change of relative humidity, suitable threshold temperature in the setting car of data processing module 2 room, when car indoor temperature exceedes the threshold values
Provide the rotating speed reduction environment inside car temperature of control signal regulation air-conditioning compressor.
As shown in figure 3, a kind of electric automobile air-conditioning system includes ducting system, control system and heat pump type air conditioning system, wind
Road system includes fresh air pipeline 101, MOD 102, breeze fan 103, air supply duct 104, the first air-valve 105, the second wind
Valve 106, the 3rd air-valve 107, the 4th air-valve 108 and return air duct 109, fresh air pipeline 101 and return air duct 109 respectively with air-supply
Pipeline 104 import connection, MOD 102 be arranged at the import of air supply duct 104 and can adjust fresh air pipeline 101 with
The aperture of return air duct 109, breeze fan 103 is arranged in air supply duct 104, the second air-valve 106, the 3rd air-valve 107 and
Four air-valves 108 are separately positioned at the antifog defroster in the exit of air supply duct 104, face air outlet and foot's air outlet.
Control system is included at fogging detector or relative humidity detector 301, indoor temperature and humidity sensor 302, data
Reason module 303, MOD proportional controller 304 and compressor variable frequency device；Fogging detector or relative humidity detector 301 set
Put on the inner surface of Chinese herbaceous peony windowpane, indoor temperature and humidity sensor 302 is arranged in car room, MOD proportional controller
304 adjust MOD 102 by stepper motor, and compressor variable frequency device can adjust the rotating speed of compressor.
Heat pump type air conditioning system include compressor 201, indoor condenser 202, indoor evaporator 210, outdoor heat exchanger 206,
Outdoor heat exchanger blower fan 207, the first valve 204, gas-liquid separator 211, triple valve 208, first throttle device 209, second section
Stream device 205 and auxiliary electric heater unit 203, the outlet of compressor by pipeline and indoor condenser 202, the first valve 204,
Outdoor heat exchanger 206, triple valve 208, first throttle device 209, indoor evaporator 210 and gas-liquid separator 211 are sequentially connected in series
Connection, the bypass of triple valve 208 is connected by pipeline with the outlet of indoor evaporator 210, and second throttling device 205 is arranged in parallel
At the first valve 204；Indoor condenser 202, indoor evaporator 210 and auxiliary electric heater unit 203 are arranged on air supply duct
It is interior.First air door 105 is disposed in the interior before condenser 202.
Electric automobile air-conditioning system of the invention can realize refrigeration, conventional heating and auxiliary electrical heater with three heat exchangers.
Air supply duct 104 has three air outlets to being blown respectively in car room, respectively demisting defrosting, face air-supply and foot's air-supply.
The valve 204 of triple valve 208 and first plays a part of heat pump type air conditioning system refrigerant loop and changes road, can realize heat pump air conditioner system
System winter heating and the function of cooling in summer.Then it is conventional heating pattern when the first air door 105 of ducting system is in valve position 105a
With auxiliary electrical heater pattern, when the first air door 105 is in valve position 105b, heat pump type air conditioning system is refrigeration mode.
As shown in figure 1, in the winter time under heating mode, using return air and fresh air mixed ventilation, all-fresh air is set at the beginning
State, data processing module 303 compares electric current fogging detector or the measured value of relative humidity sensor 301 and given threshold,
Not up to given threshold when transmission control signal to MOD proportional controller 304, control stepper motor gradually increases return air
Ratio, return air ratio is reduced when measured value reaches given threshold until measured value is again below given threshold, makes air-conditioning system
It is constantly in the case of front truck glass pane not fogging and keeps the ventilation state of maximum air returning ratio.
As shown in Fig. 2 in the winter time under heating mode, using return air and fresh air mixed ventilation, the temperature and humidity sensing in car room
Device 302 gathers the ambient parameter of interior, and is compared with the comfort level interval of data processing module 303, when car indoor environment
Parameter is interval less than comfort level, and data processing module 303 transmits control signal increases compressor rotary speed to compressor variable frequency device；When
Car indoor environment parameter is interval higher than comfort level, and data processing module transmits control signal and gives compressor variable frequency device reduction compressor
Rotating speed；Above-mentioned two situations are adjusted at car indoor environment parameter interval with the comfort level of data module setting always.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not right
The restriction of embodiments of the present invention, for those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms, all of implementation method cannot be exhaustive here, it is every to belong to this hair
Obvious change that bright technical scheme is extended out changes row still in protection scope of the present invention.
Claims (6)
1. the return air adjustment control method of electric automobile air-conditioning system, it is characterised in that comprise the following steps：
It is arranged on air supply duct and progressively closes off fresh air pipeline opening return air with fresh air pipeline, the MOD of return air duct interface
Pipeline, air returning ratio is gradually increased by all-fresh air state；
The electric current fogging detector or relative humidity sensor for being arranged on Chinese herbaceous peony windowpane inner surface gather electric current or relative respectively
Moisture signal；
Data processing module is according to the electric current or relative humidity signal and default fogging threshold values regulation MOD, it is ensured that car
Front glass window maximum air returning ratio not under fogging state.
2. the return air adjustment control method of electric automobile air-conditioning system according to claim 1, it is characterised in that the method
Further include step：
Temperature and relative humidity signal in Temperature Humidity Sensor collecting vehicle in the car is set；
The data processing module adjusts air-conditioning system pressure according to temperature and relative humidity signal and default humiture threshold values
The rotating speed reduction vehicle interior temperature of contracting machine.
3. electric automobile air-conditioning system includes ducting system, control system and heat pump type air conditioning system, it is characterised in that：The air channel
System includes the fresh air connected with air supply duct to the in-car air supply duct blown, the breeze fan being arranged in air supply duct
Pipeline and return air duct and it is arranged on air supply duct and fresh air pipeline, the MOD of return air duct connectivity part；Control system
Including data processing module, it is arranged on electric current fogging detector/relative humidity sensor and the control of Chinese herbaceous peony windowpane inner surface
The proportional controller of the MOD switch, the signal that the electric current fogging detector/relative humidity sensor will be collected
Send data processing module, the control MOD folding of data processing module passing ratio adjuster to；The heat pump air conditioner system
System includes compressor, indoor condenser, indoor evaporator, outdoor heat exchanger, outdoor heat exchanger blower fan, the first valve, gas-liquid point
From device, triple valve, first throttle device and second throttling device, the outlet of the compressor passes through pipeline and the indoor condensation
Device, the first valve, outdoor heat exchanger, triple valve, first throttle device, indoor evaporator and gas-liquid separator are sequentially connected in series company
Connect, the bypass of the triple valve is connected by pipeline with the outlet of indoor evaporator, and the second throttling device is arranged in parallel
At first valve；The indoor condenser and indoor evaporator are arranged in air supply duct.
4. electric automobile air-conditioning system according to claim 3, it is characterised in that：The data processing module is further wrapped
Include the Temperature Humidity Sensor of the in-car humiture of measurement and the frequency converter of control compressor rotary speed.
5. electric automobile air-conditioning system according to claim 3, it is characterised in that：The air-conditioning system further includes to set
Auxiliary electric heater unit in the air supply duct.
6. electric automobile air-conditioning system according to claim 3, it is characterised in that：The exit of the air supply duct is provided with
Antifog defroster able to turn on or off, face air outlet and foot's air outlet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234886 | 2016-12-28 | ||
| CN2016112348861 | 2016-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106808969A true CN106808969A (en) | 2017-06-09 |
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ID=59116103
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720242535.9U Active CN206589610U (en) | 2016-12-28 | 2017-03-14 | Air conditioning system of electric automobile |
| CN201710148554.XA Pending CN106808969A (en) | 2016-12-28 | 2017-03-14 | Return air regulation control method of air conditioning system of electric automobile and air conditioning system thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201720242535.9U Active CN206589610U (en) | 2016-12-28 | 2017-03-14 | Air conditioning system of electric automobile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108928214A (en) * | 2018-07-19 | 2018-12-04 | 西安交通大学 | A kind of carbon dioxide air conditioner heat pump system and its aeration control method |
| CN109204233A (en) * | 2017-07-06 | 2019-01-15 | 郑州宇通客车股份有限公司 | Automatic defrosting defogging method and system |
| CN114877409A (en) * | 2022-05-10 | 2022-08-09 | 宁波奥克斯电气股份有限公司 | Air conditioner fresh air system, air conditioner and fresh air auxiliary temperature adjusting method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206589610U (en) * | 2016-12-28 | 2017-10-27 | 中国科学院理化技术研究所 | Air conditioning system of electric automobile |
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2017
- 2017-03-14 CN CN201720242535.9U patent/CN206589610U/en active Active
- 2017-03-14 CN CN201710148554.XA patent/CN106808969A/en active Pending
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| JPH08244436A (en) * | 1995-03-14 | 1996-09-24 | Nippondenso Co Ltd | Air conditioner for vehicle |
| JP2001080340A (en) * | 1999-09-10 | 2001-03-27 | Mitsubishi Heavy Ind Ltd | Air conditioning unit and air conditioner for vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204233A (en) * | 2017-07-06 | 2019-01-15 | 郑州宇通客车股份有限公司 | Automatic defrosting defogging method and system |
| CN109204233B (en) * | 2017-07-06 | 2021-09-03 | 郑州宇通客车股份有限公司 | Automatic defrosting and demisting method and system |
| CN108928214A (en) * | 2018-07-19 | 2018-12-04 | 西安交通大学 | A kind of carbon dioxide air conditioner heat pump system and its aeration control method |
| CN114877409A (en) * | 2022-05-10 | 2022-08-09 | 宁波奥克斯电气股份有限公司 | Air conditioner fresh air system, air conditioner and fresh air auxiliary temperature adjusting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN206589610U (en) | 2017-10-27 |
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Application publication date: 20170609 |