CN109050197A - heat pump air conditioner defrosting control device and method - Google Patents
heat pump air conditioner defrosting control device and method Download PDFInfo
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- CN109050197A CN109050197A CN201810661597.2A CN201810661597A CN109050197A CN 109050197 A CN109050197 A CN 109050197A CN 201810661597 A CN201810661597 A CN 201810661597A CN 109050197 A CN109050197 A CN 109050197A
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- 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
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
-
- 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
- B60H1/00735—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
- B60H1/00735—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
- B60H1/00792—Arrangement of detectors
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- 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)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of heat pump air conditioner defrosting control device and methods, which includes: the first temperature sensor, for acquiring the outdoor environment temperature T of automobile external1；Humidity sensor, for acquiring the outdoor environment humidity RH of automobile external；Defrost controller, for according to the outdoor environment temperature T1With the outdoor environment humidity RH, the frosting mode of heat pump air conditioner is determined, and corresponding defrosting is carried out according to each frosting mode and is operated.Heat pump air conditioner defroster provided by the invention and method pass through acquisition outdoor environment temperature T1With outdoor environment humidity RH, determine the frosting mode of heat pump air conditioner, and corresponding defrosting is carried out according to each frosting mode and is operated, to accurately be defrosted according to different frosting modes, without being realized by reverse circulation under all environment, while simplifying system structure, defrosting efficiency is improved, and improves the comfort of occupant.
Description
Technical field
The present invention relates to the air-conditioning system of electric car more particularly to a kind of heat pump air conditioner defrosting control device and methods.
Background technique
The air-conditioning heating of orthodox car uses engine exhaust heat, but electric car does not have engine, and heating mainly has following
Several ways electric heating (electric-heating water, electric heating air) and heat pump system.Heat pump air conditioner has the advantages that Energy Efficiency Ratio is higher,
Application on domestic air conditioning is quite mature.The heating efficiency in electric automobile air conditioner winter can be improved using heat pump air conditioner,
Battery is saved because of the electricity of heating consumption, extends the course continuation mileage of electric car.But the shortcomings that heat pump air conditioner is that outside is changed
The hot easy frosting of device influences occupant comfort and part reliability to the control of heat pump air conditioner defrosting.
For heat pump air conditioner in the prior art during heating, the temperature of outdoor heat exchanger is low, is easy frosting, is after frosting
System, to defrost to outdoor heat exchanger, avoids the system failure according to judging to be converted by heating mode to refrigeration/defrosting mode.
But this Defrost mode is realized by reverse circulation, system complex and low efficiency influence the comfort of occupant.
Summary of the invention
The object of the present invention is to provide a kind of heat pump air conditioner defrosting control device and methods, to solve in the prior art ask
Topic, simplied system structure improve defrosting efficiency, and improve the comfort of occupant.
The present invention provides a kind of heat pump air conditioner defrosting control devices, wherein includes:
First temperature sensor, for acquiring the outdoor environment temperature T of automobile external1；
Humidity sensor, for acquiring the outdoor environment humidity RH of automobile external；
Defrost controller, for according to the outdoor environment temperature T1With the outdoor environment humidity RH, heat pump sky is determined
The frosting mode of tune, and corresponding defrosting is carried out according to each frosting mode and is operated.
Optionally, the defrosting controller is specifically used for:
Judge the outdoor environment temperature T1With preset first temperature threshold TaAnd the outdoor environment humidity RH with
Preset first humidity threshold RH1, preset second humidity threshold RH2Between relationship；
If T1≤Ta, and RH≤RH2, it is determined that heat pump air conditioner corresponds to slight frosting mode, control the heat pump air conditioner into
It is capable not defrost；
If T1≤Ta, and RH2<RH≤RH1, it is determined that heat pump air conditioner corresponds to moderate frosting mode, and it is empty to control the heat pump
Transfer in the defrosting operation of row moderate；
If T1≤Ta, and RH > RH1, it is determined that heat pump air conditioner corresponds to severe frosting mode, control the heat pump air conditioner into
The defrosting operation of row severe.
Optionally, further includes:
Windage test device, for testing outside automobile under the multiple groups outdoor environment temperature and outdoor environment temperature of setting
The windage of the outdoor heat exchanger in portion；
The defrosting controller is also used to: the windage obtained based on test is carried out curve fitting, and is obtained according to the curve of fitting
Obtain the first humidity threshold RH1With the second humidity threshold RH2。
Optionally, the defrosting controller is also used to: after controlling the heat pump air conditioner and carrying out severe defrosting operation, judgement
The outdoor environment temperature T1With preset second temperature threshold value TbBetween relationship；
If T1≥Tb, terminate severe defrosting operation.
It optionally, further include second temperature sensor, the temperature T of the outdoor heat exchanger for acquiring automobile external2；
The defrosting controller is also used to after determining that heat pump air conditioner corresponds to severe frosting mode, judges the temperature T2
With preset third temperature threshold TcBetween relationship；
If T2≤Tc, control the heat pump air conditioner and carry out severe defrosting operation.
The present invention also provides a kind of defrosting control method for heat pump air conditioner, wherein includes:
Acquire the outdoor environment temperature T of automobile external1；
Acquire the outdoor environment humidity RH of automobile external；
According to the outdoor environment temperature T1With the outdoor environment humidity RH, the frosting mode of heat pump air conditioner is determined, and
Corresponding defrosting operation is carried out according to each frosting mode.
Optionally, according to the outdoor environment temperature T1With the outdoor environment humidity RH, the frosting of heat pump air conditioner is determined
Mode simultaneously carries out corresponding defrosting operation according to each frosting mode, comprising:
Judge the outdoor environment temperature T1With preset first temperature threshold TaAnd the outdoor environment humidity RH with
Preset first humidity threshold RH1, preset second humidity threshold RH2Between relationship；
If T1≤Ta, and RH≤RH2, it is determined that heat pump air conditioner corresponds to slight frosting mode, control the heat pump air conditioner into
It is capable not defrost；
If T1≤Ta, and RH2<RH≤RH1, it is determined that heat pump air conditioner corresponds to moderate frosting mode, and it is empty to control the heat pump
Transfer in the defrosting operation of row moderate；
If T1≤Ta, and RH > RH1, it is determined that heat pump air conditioner corresponds to severe frosting mode, control the heat pump air conditioner into
The defrosting operation of row severe.
Optionally, further includes:
Under the multiple groups outdoor environment temperature and outdoor environment temperature of setting, the wind of the outdoor heat exchanger of automobile external is tested
Resistance；
The windage obtained based on test is carried out curve fitting, and obtains the first humidity threshold RH according to the curve of fitting1
With the second humidity threshold RH2；
Optionally, after controlling the heat pump air conditioner and carrying out severe defrosting operation, the method also includes:
Judge the outdoor environment temperature T1With preset second temperature threshold value TbBetween relationship；
If T1≥Tb, terminate severe defrosting operation.
Optionally, after determining that heat pump air conditioner corresponds to severe frosting mode, the method also includes:
Acquire the temperature T of the outdoor heat exchanger of automobile external2；
Judge the temperature T2With preset third temperature threshold TcBetween relationship；
If T2≤Tc, control the heat pump air conditioner and carry out severe defrosting operation.
Heat pump air conditioner defroster provided by the invention and method pass through acquisition outdoor environment temperature T1It is wet with outdoor environment
RH is spent, the frosting mode of heat pump air conditioner is determined, and corresponding defrosting is carried out according to each frosting mode and is operated, thus accurately basis
Different frosting modes defrost, and without realizing by reverse circulation under all environment, are simplifying system knot
While structure, defrosting efficiency is improved, and improves the comfort of occupant.
Detailed description of the invention
Fig. 1 is the first structural schematic diagram of heat pump air conditioner provided in an embodiment of the present invention defrosting control device；
Fig. 2 is second of structural schematic diagram of heat pump air conditioner provided in an embodiment of the present invention defrosting control device；
Fig. 3 is the division schematic diagram of frosting mode；
Fig. 4 is the third structural schematic diagram of heat pump air conditioner provided in an embodiment of the present invention defrosting control device；
Fig. 5 is the first flow diagram of defrosting control method for heat pump air conditioner provided in an embodiment of the present invention；
Fig. 6 is second of flow diagram of defrosting control method for heat pump air conditioner provided in an embodiment of the present invention；
Fig. 7 is the third flow diagram of defrosting control method for heat pump air conditioner provided in an embodiment of the present invention；
Fig. 8 is the 4th kind of flow diagram of defrosting control method for heat pump air conditioner provided in an embodiment of the present invention.
Description of symbols:
The first temperature sensor of 1- 2- humidity sensor 3- defrosting controller 4- windage test device 5- second temperature sensing
Device
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Fig. 1 is the first structural schematic diagram of heat pump air conditioner provided in an embodiment of the present invention defrosting control device, such as Fig. 1 institute
Show, the embodiment of the invention provides a kind of heat pump air conditioner defrosting control devices, including the first temperature sensor 1, humidity sensor 2
With defrosting controller 3.Wherein, the first temperature sensor 1 is used to acquire the outdoor environment temperature T of automobile external1；Humidity sensor
2 for acquiring the outdoor environment humidity RH of automobile external；The controller 3 that defrosts is used for according to the outdoor environment temperature T1With it is described
Outdoor environment humidity RH determines the frosting mode of heat pump air conditioner, and carries out corresponding defrosting according to each frosting mode and operate.
Above-mentioned first temperature sensor 1 is arranged in automobile external, specific location is not limited to, as long as automobile external can be acquired
Outdoor environment temperature.
Heat pump air conditioner defroster provided in an embodiment of the present invention passes through acquisition outdoor environment temperature T1It is wet with outdoor environment
RH is spent, the frosting mode of heat pump air conditioner is determined, and corresponding defrosting is carried out according to each frosting mode and is operated, thus accurately basis
Different frosting modes defrost, and without realizing by reverse circulation under all environment, are simplifying system knot
While structure, defrosting efficiency is improved, and improves the comfort of occupant.
Preferably, the defrosting controller 3 is specifically used for:
Judge the outdoor environment temperature T1With preset first temperature threshold TaAnd the outdoor environment humidity RH with
Preset first humidity threshold RH1, preset second humidity threshold RH2Between relationship；
If T1≤Ta, and RH≤RH2, it is determined that heat pump air conditioner corresponds to slight frosting mode, control the heat pump air conditioner into
It is capable not defrost；
If T1≤Ta, and RH2<RH≤RH1, it is determined that heat pump air conditioner corresponds to moderate frosting mode, and it is empty to control the heat pump
Transfer in the defrosting operation of row moderate；
If T1≤Ta, and RH > RH1, it is determined that heat pump air conditioner corresponds to severe frosting mode, control the heat pump air conditioner into
The defrosting operation of row severe.
Wherein, above-mentioned TaIt can be set between 5.8 DEG C -6 DEG C, in the present embodiment, Ta=6 DEG C, in TaWhen higher than 5.8 DEG C,
It can not consider influence of the frosting to heat pump.
First humidity threshold RH1With the second humidity threshold RH2Setting will do it specific descriptions below.
Fig. 2 is second of structural schematic diagram of heat pump air conditioner provided in an embodiment of the present invention defrosting control device, above-mentioned
On the basis of embodiment, which further includes windage test device 4, in the multiple groups outdoor environment temperature of setting and room
At a temperature of external environment, the windage of the outdoor heat exchanger of automobile external is tested.Defrosting controller 3 is also used to: being obtained based on test
Windage carries out curve fitting, and obtains the first humidity threshold RH according to the curve of fitting1With the second humidity threshold RH2。
Specifically, referring to table 1, the multiple groups outdoor environment temperature and outdoor environment humidity set according to table 1 makes heat pump system
Operation.
Table 1
After test two hours, the windage of the outdoor heat exchanger of automobile external is tested using windage test device 4, according to wind
Resistance change curve is fitted, referring to Fig. 3, wherein curve 1 is windage curve when windage increases by 25%, and curve 2 is windage increasing
Windage curve when adding 15%, obtains the first humidity threshold RH according to the following formula1With the second humidity threshold RH2:
Curve 1:RH1=K1+K2×Ta+K3×Ta^2；
Curve 2:RH2=K4+K5×Ta+K6×Ta^2。
It is hereby achieved that the a-quadrant in Fig. 3 corresponds to severe frosting mode, B area corresponds to moderate frosting mode, B area
Slight frosting mode is corresponded to below.
Preferably, windage curve when windage increases by 5% can also be further tested, can also be obtained according to the following formula
Third humidity threshold RH3:
Curve 3:RH3=K7+K8×Ta+K9×Ta^2。
Wherein, K1-K9Represent the parameter value of matched curve.
By further obtaining third humidity threshold RH3Slight frosting mode can be accurately defined in the area C in Fig. 3
Domain, and the region C region below can be not considered.
Further, defrosting controller 3 is also used to: after controlling the heat pump air conditioner and carrying out severe defrosting operation, judgement
The outdoor environment temperature T1With preset second temperature threshold value TbBetween relationship；If T1≥Tb, terminate severe defrosting behaviour
Make.In the present embodiment, Tb=3 DEG C.
Fig. 4 is the third structural schematic diagram of heat pump air conditioner provided in an embodiment of the present invention defrosting control device, such as Fig. 4 institute
Show, control device provided in this embodiment preferably further includes second temperature sensor 5, and the outdoor for acquiring automobile external is changed
The temperature T of hot device2.The defrosting controller 3 is also used to after determining that heat pump air conditioner corresponds to severe frosting mode, described in judgement
Temperature T2With preset third temperature threshold TcBetween relationship；If T2≤Tc, control the heat pump air conditioner and carry out severe defrosting
Operation.In the present embodiment, Tc=-2 DEG C.
Preferably, which further includes frequency-changeable compressor, the row that defrosting controller 3 passes through control frequency-changeable compressor
Amount, come adjust automobile external outdoor heat exchanger evaporating temperature so that heat pump air conditioner carries out defrosting operation.
Fig. 5 is the first flow diagram of defrosting control method for heat pump air conditioner provided in an embodiment of the present invention, such as Fig. 5 institute
Show, the embodiment of the invention provides a kind of heat pump air conditioner control methods, comprising:
Step S100, the outdoor environment temperature T of automobile external is acquired1；
Step S200, the outdoor environment humidity RH of automobile external is acquired；
Step S300, according to the outdoor environment temperature T1With the outdoor environment humidity RH, the knot of heat pump air conditioner is determined
White mode, and corresponding defrosting is carried out according to each frosting mode and is operated.
By being arranged the first temperature sensor 1 in automobile external, to acquire the outdoor environment temperature of automobile external,
Humidity sensor 2 is also disposed at automobile external, to acquire the outdoor environment humidity RH of automobile external.Air-conditioner controller is according to institute
State outdoor environment temperature T1With the outdoor environment humidity RH, the frosting mode of heat pump air conditioner is determined, and according to each frosting mode
Carry out corresponding defrosting operation.
Fig. 6 is second of flow diagram of defrosting control method for heat pump air conditioner provided in an embodiment of the present invention, such as Fig. 6 institute
Show, this method comprises:
Step S100, the outdoor environment temperature T of automobile external is acquired1；
Step S200, the outdoor environment humidity RH of automobile external is acquired；
Step S310, judge the outdoor environment temperature T1With preset first temperature threshold TaAnd the outdoor environment
Humidity RH and preset first humidity threshold RH1, preset second humidity threshold RH2Between relationship；If T1≤Ta, and RH
≤RH2, then S320 is entered step；If T1≤Ta, and RH2<RH≤RH1, then S330 is entered step；If T1≤Ta, and RH >
RH1, then S340 is entered step.
Step S320, it determines that heat pump air conditioner corresponds to slight frosting mode, controls the heat pump air conditioner and do not defrosted；
Step S330, it determines that heat pump air conditioner corresponds to moderate frosting mode, controls the heat pump air conditioner and carry out moderate defrosting behaviour
Make；
Step S340, it determines that heat pump air conditioner corresponds to severe frosting mode, controls the heat pump air conditioner and carry out severe defrosting behaviour
Make.
Wherein, above-mentioned TaIt can be set between 5.8 DEG C -6 DEG C, in the present embodiment, Ta=6 DEG C, in TaWhen higher than 5.8 DEG C,
It can not consider influence of the frosting to heat pump.
Wherein, the first humidity threshold RH1With the second humidity threshold RH2Setting have been described above, details are not described herein.
Fig. 7 is the third flow diagram of defrosting control method for heat pump air conditioner provided in an embodiment of the present invention, such as Fig. 7 institute
Show, this method comprises:
Step S100, the outdoor environment temperature T of automobile external is acquired1；
Step S200, the outdoor environment humidity RH of automobile external is acquired；
Step S310, judge the outdoor environment temperature T1With preset first temperature threshold TaAnd the outdoor environment
Humidity RH and preset first humidity threshold RH1, preset second humidity threshold RH2Between relationship；If T1≤Ta, and RH
≤RH2, then S320 is entered step；If T1≤Ta, and RH2<RH≤RH1, then S330 is entered step；If T1≤Ta, and RH >
RH1, then S340 is entered step.
Step S320, it determines that heat pump air conditioner corresponds to slight frosting mode, controls the heat pump air conditioner and do not defrosted；
Step S330, it determines that heat pump air conditioner corresponds to moderate frosting mode, controls the heat pump air conditioner and carry out moderate defrosting behaviour
Make；
Step S340, it determines that heat pump air conditioner corresponds to severe frosting mode, controls the heat pump air conditioner and carry out severe defrosting behaviour
Make；
Step S350, judge the outdoor environment temperature T1With preset second temperature threshold value TbBetween relationship；If T1
≥Tb, then S360 is entered step.In the present embodiment, Tb=3 DEG C.
Step S360, terminate severe defrosting operation.
Fig. 8 is the 4th kind of flow diagram of defrosting control method for heat pump air conditioner provided in an embodiment of the present invention, such as Fig. 8 institute
Show, this method comprises:
S100, the outdoor environment temperature T for acquiring automobile external1；
Step S200, the outdoor environment humidity RH of automobile external is acquired；
Step S310, judge the outdoor environment temperature T1With preset first temperature threshold TaAnd the outdoor environment
Humidity RH and preset first humidity threshold RH1, preset second humidity threshold RH2Between relationship；If T1≤Ta, and RH
≤RH2, then S320 is entered step；If T1≤Ta, and RH2<RH≤RH1, then S330 is entered step；If T1≤Ta, and RH >
RH1, then S340 is entered step.
Step S320, it determines that heat pump air conditioner corresponds to slight frosting mode, controls the heat pump air conditioner and do not defrosted；
Step S330, it determines that heat pump air conditioner corresponds to moderate frosting mode, controls the heat pump air conditioner and carry out moderate defrosting behaviour
Make；
Step S341, determine that heat pump air conditioner corresponds to severe frosting mode；
Step S342, the temperature T of the outdoor heat exchanger of automobile external is acquired2；
Step S343, judge the temperature T2With preset third temperature threshold TcBetween relationship；If T2≤Tc, then
Enter step S344.
Step S344, it controls the heat pump air conditioner and carries out severe defrosting operation；
Step S350, judge the outdoor environment temperature T1With preset second temperature threshold value TbBetween relationship；If T1
≥Tb, then S360 is entered step.In the present embodiment, Tb=3 DEG C.
Step S360, terminate severe defrosting operation.
Heat pump air conditioner Defrost method provided by the invention passes through acquisition outdoor environment temperature T1With outdoor environment humidity RH, really
Determine the frosting mode of heat pump air conditioner, and corresponding defrosting is carried out according to each frosting mode and is operated, thus accurately according to different
Frosting mode defrosts, and without realizing by reverse circulation under all environment, is simplifying the same of system structure
When, defrosting efficiency is improved, and improve the comfort of occupant.
Structure, feature and effect of the invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (10)
- The control device 1. a kind of heat pump air conditioner defrosts characterized by comprisingFirst temperature sensor, for acquiring the outdoor environment temperature T of automobile external1；Humidity sensor, for acquiring the outdoor environment humidity RH of automobile external；Defrost controller, for according to the outdoor environment temperature T1With the outdoor environment humidity RH, the knot of heat pump air conditioner is determined White mode, and corresponding defrosting is carried out according to each frosting mode and is operated.
- The control device 2. heat pump air conditioner according to claim 1 defrosts, which is characterized in that the defrosting control implement body is used In:Judge the outdoor environment temperature T1With preset first temperature threshold TaAnd the outdoor environment humidity RH and default The first humidity threshold RH1, preset second humidity threshold RH2Between relationship；If T1≤Ta, and RH≤RH2, it is determined that heat pump air conditioner corresponds to slight frosting mode, controls the heat pump air conditioner and carries out not Defrosting；If T1≤Ta, and RH2<RH≤RH1, it is determined that heat pump air conditioner corresponds to moderate frosting mode, control the heat pump air conditioner into The defrosting operation of row moderate；If T1≤Ta, and RH > RH1, it is determined that heat pump air conditioner corresponds to severe frosting mode, controls the heat pump air conditioner and carries out weight Degree defrosting operation.
- The control device 3. heat pump air conditioner according to claim 2 defrosts, which is characterized in that further include:Windage test device, for testing automobile external under the multiple groups outdoor environment temperature and outdoor environment temperature of setting The windage of outdoor heat exchanger；The defrosting controller is also used to: the windage obtained based on test is carried out curve fitting, and obtains institute according to the curve of fitting State the first humidity threshold RH1With the second humidity threshold RH2。
- The control device 4. heat pump air conditioner according to claim 2 defrosts, which is characterized in that the defrosting controller is also used In: after controlling the heat pump air conditioner and carrying out severe defrosting operation, judge the outdoor environment temperature T1With preset second temperature Spend threshold value TbBetween relationship；If T1≥Tb, terminate severe defrosting operation.
- The control device 5. heat pump air conditioner according to claim 2 defrosts, which is characterized in that further include:Second temperature sensor, the temperature T of the outdoor heat exchanger for acquiring automobile external2；The defrosting controller is also used to after determining that heat pump air conditioner corresponds to severe frosting mode, judges the temperature T2With it is pre- If third temperature threshold TcBetween relationship；If T2≤Tc, control the heat pump air conditioner and carry out severe defrosting operation.
- 6. a kind of defrosting control method for heat pump air conditioner characterized by comprisingAcquire the outdoor environment temperature T of automobile external1；Acquire the outdoor environment humidity RH of automobile external；According to the outdoor environment temperature T1With the outdoor environment humidity RH, the frosting mode of heat pump air conditioner is determined, and according to each Frosting mode carries out corresponding defrosting operation.
- 7. defrosting control method for heat pump air conditioner according to claim 6, which is characterized in that according to the outdoor environment temperature T1With the outdoor environment humidity RH, determines the frosting mode of heat pump air conditioner and corresponding defrosting is carried out according to each frosting mode and grasp Make, comprising:Judge the outdoor environment temperature T1With preset first temperature threshold TaAnd the outdoor environment humidity RH and default The first humidity threshold RH1, preset second humidity threshold RH2Between relationship；If T1≤Ta, and RH≤RH2, it is determined that heat pump air conditioner corresponds to slight frosting mode, controls the heat pump air conditioner and carries out not Defrosting；If T1≤Ta, and RH2<RH≤RH1, it is determined that heat pump air conditioner corresponds to moderate frosting mode, control the heat pump air conditioner into The defrosting operation of row moderate；If T1≤Ta, and RH > RH1, it is determined that heat pump air conditioner corresponds to severe frosting mode, controls the heat pump air conditioner and carries out weight Degree defrosting operation.
- 8. defrosting control method for heat pump air conditioner according to claim 7, which is characterized in that further include:Under the multiple groups outdoor environment temperature and outdoor environment temperature of setting, the windage of the outdoor heat exchanger of automobile external is tested；The windage obtained based on test is carried out curve fitting, and obtains the first humidity threshold RH according to the curve of fitting1With second Humidity threshold RH2。
- 9. defrosting control method for heat pump air conditioner according to claim 7, which is characterized in that control the heat pump air conditioner into After the defrosting operation of row severe, the method also includes:Judge the outdoor environment temperature T1With preset second temperature threshold value TbBetween relationship；If T1≥Tb, terminate severe defrosting operation.
- 10. defrosting control method for heat pump air conditioner according to claim 7, which is characterized in that determining that heat pump air conditioner is corresponding After severe frosting mode, the method also includes:Acquire the temperature T of the outdoor heat exchanger of automobile external2；Judge the temperature T2With preset third temperature threshold TcBetween relationship；If T2≤Tc, control the heat pump air conditioner and carry out severe defrosting operation.
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| CN201810661597.2A CN109050197A (en) | 2018-06-25 | 2018-06-25 | heat pump air conditioner defrosting control device and method |
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| CN201810661597.2A CN109050197A (en) | 2018-06-25 | 2018-06-25 | heat pump air conditioner defrosting control device and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189268A (en) * | 2020-01-14 | 2020-05-22 | 广东芬尼能源技术有限公司 | Defrosting control method for variable frequency heat pump |
| CN111692707A (en) * | 2020-06-08 | 2020-09-22 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device for air conditioner external unit, storage medium and air conditioner |
| CN112248968A (en) * | 2020-10-29 | 2021-01-22 | 东风商用车有限公司 | Automatic defrosting system and method for front windshield of automobile |
| CN112406449A (en) * | 2019-08-23 | 2021-02-26 | 上海汽车集团股份有限公司 | Control method for delaying frosting of condenser outside vehicle |
| CN114636229A (en) * | 2020-12-15 | 2022-06-17 | 广东美的精密模具科技有限公司 | Air conditioner, method of controlling the same, and computer-readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112406449A (en) * | 2019-08-23 | 2021-02-26 | 上海汽车集团股份有限公司 | Control method for delaying frosting of condenser outside vehicle |
| CN111189268A (en) * | 2020-01-14 | 2020-05-22 | 广东芬尼能源技术有限公司 | Defrosting control method for variable frequency heat pump |
| CN111189268B (en) * | 2020-01-14 | 2021-07-06 | 广东芬尼能源技术有限公司 | Defrosting control method for variable frequency heat pump |
| CN111692707A (en) * | 2020-06-08 | 2020-09-22 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device for air conditioner external unit, storage medium and air conditioner |
| CN112248968A (en) * | 2020-10-29 | 2021-01-22 | 东风商用车有限公司 | Automatic defrosting system and method for front windshield of automobile |
| CN114636229A (en) * | 2020-12-15 | 2022-06-17 | 广东美的精密模具科技有限公司 | Air conditioner, method of controlling the same, and computer-readable storage medium |
| CN114636229B (en) * | 2020-12-15 | 2023-11-28 | 广东美的精密模具科技有限公司 | Air conditioner, control method thereof and computer readable storage medium |
| CN115807995A (en) * | 2022-12-08 | 2023-03-17 | 珠海格力电器股份有限公司 | Air conditioner heating control method, device, equipment and storage medium |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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Application publication date: 20181221 |