CN105423497A - Control method and device of electronic expansion valve - Google Patents
Control method and device of electronic expansion valve Download PDFInfo
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- CN105423497A CN105423497A CN201510967096.3A CN201510967096A CN105423497A CN 105423497 A CN105423497 A CN 105423497A CN 201510967096 A CN201510967096 A CN 201510967096A CN 105423497 A CN105423497 A CN 105423497A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004378 air conditioning Methods 0.000 claims abstract description 101
- 238000004364 calculation method Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 abstract description 14
- 238000001816 cooling Methods 0.000 abstract description 12
- 238000002474 experimental method Methods 0.000 description 10
- 238000010200 validation analysis Methods 0.000 description 10
- 230000009194 climbing Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method of an electronic expansion valve. The control method comprises the steps of periodically acquiring the current temperature of the environment in which an air conditioning system outdoor unit is positioned; when the preset temperature range which the current temperature belongs to is the same as the preset temperature range which the environment temperature of the last period belongs to, acquiring the current working frequency of an air conditioning system compressor at intervals every preset time; and every time when the current working frequency is acquired, adjusting the opening of the electronic expansion valve based on the current working frequency. The invention further discloses a control device of the electronic expansion valve. According to the control method and the control device, when the preset temperature range which the current temperature of the environment in which the air conditioning system is positioned belongs to does not change, namely, the outdoor environment temperature has slight change, the opening of the electronic expansion valve is regularly adjusted according to the current working efficiency of the compressor, so that the purpose that the opening of the electronic expansion valve is precisely adjusted is achieved, the air conditioning system is enabled to always run in better throttling modes, and the cooling and heating effects and energy efficiency of the air conditioning system are improved after the air conditioning system is started.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of control method and device of electric expansion valve.
Background technology
At present, the throttle style of air-conditioning system mainly comprises and carries out throttling control by electric expansion valve or capillary, wherein, adopt electric expansion valve as the air-conditioning system of restricting element, need the preferable states being reached use by the aperture flow of variable expansion valve in use.
The temperature range of existing air-conditioning system mainly through outdoor environment and the aperture of fixing delivery temperature adjustment electric expansion valve, the throttling realized in air-conditioning system running controls.But, outdoor environment temperature in same temperature interval change and outdoor environment temperature change less time, the aperture of electric expansion valve is substantially constant, cause the cooling or heating effect of air-conditioning system and efficiency lower.
Summary of the invention
The invention provides a kind of control method and device of electric expansion valve, be intended to solve existing air-conditioning system when outdoor environment temperature change is less, the aperture of electric expansion valve is substantially constant and cause the cooling or heating effect of air-conditioning system and the lower technical problem of efficiency.
For achieving the above object, the control method of a kind of electric expansion valve provided by the invention, the control method of described electric expansion valve comprises the following steps:
The Current Temperatures of environment residing for cycle acquisition outdoor unit of air-conditioning system;
The preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, every the present operating frequency of prefixed time interval acquisition air-conditioning compressor;
When getting described present operating frequency at every turn, adjust the aperture of described electric expansion valve based on described present operating frequency.
Preferably, the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, after prefixed time interval obtains the step of the present operating frequency of air-conditioning compressor, the control method of described electric expansion valve also comprises:
Obtain the current exhaust gas temperature of target exhaust temperature corresponding to described present operating frequency and described compressor;
Obtain the temperature gap of described current exhaust gas temperature and described target exhaust temperature;
When getting described present operating frequency at every turn, the step adjusting the aperture of described electric expansion valve based on described present operating frequency comprises: when getting described temperature gap at every turn, adjusts the aperture of described electric expansion valve based on described temperature gap.
Preferably, the step of the target exhaust temperature that the described present operating frequency of described acquisition is corresponding comprises:
Obtain the interval corresponding predeterminated frequency coefficient of preset temperature belonging to described Current Temperatures;
Described target exhaust temperature is obtained based on the described present operating frequency got and described predeterminated frequency coefficient calculations.
Preferably, the step adjusting the aperture of described electric expansion valve based on described temperature gap comprises:
Determine that the preset temperature difference belonging to described temperature gap is interval;
Obtain the current operation aperture of the interval corresponding default aperture coefficient of described preset temperature difference and the described electric expansion valve determined;
Obtain described first based on the described current operation aperture obtained and default aperture coefficient calculations and preset aperture;
The aperture of described electric expansion valve is adjusted to described first and presets aperture.
Preferably, after the step of the Current Temperatures of environment residing for described cycle acquisition outdoor unit of air-conditioning system, the control method of described electric expansion valve also comprises:
The preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval different time, obtain interval the second corresponding default aperture of preset temperature belonging to described Current Temperatures;
The aperture of described electric expansion valve is adjusted to described second and presets aperture.
In addition, for achieving the above object, the present invention also provides a kind of control device of electric expansion valve, and the control device of described electric expansion valve comprises:
Environment temperature acquisition module, obtains the Current Temperatures of environment residing for outdoor unit of air-conditioning system for the cycle;
Operating frequency acquisition module, for the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, every the present operating frequency of prefixed time interval acquisition air-conditioning compressor;
First aperture adjusting module, for when getting described present operating frequency at every turn, adjusts the aperture of described electric expansion valve based on described present operating frequency.
Preferably, the control device of described electric expansion valve also comprises:
Delivery temperature acquisition module, for obtaining the current exhaust gas temperature of target exhaust temperature corresponding to described present operating frequency and described compressor;
Temperature gap acquisition module, for obtaining the temperature gap of described current exhaust gas temperature and described target exhaust temperature;
Described first aperture adjusting module, also for when getting described temperature gap at every turn, adjusts the aperture of described electric expansion valve based on described temperature gap.
Preferably, described delivery temperature acquisition module comprises:
First acquiring unit, for obtaining the interval corresponding predeterminated frequency coefficient of preset temperature belonging to described Current Temperatures;
First computing unit, for obtaining described target exhaust temperature based on the described present operating frequency got and described predeterminated frequency coefficient calculations.
Preferably, described first aperture adjusting module comprises:
Determining unit, interval for determining the preset temperature difference belonging to described temperature gap;
Second acquisition unit, for obtaining the current operation aperture of the interval corresponding default aperture coefficient of described preset temperature difference and the described electric expansion valve determined;
Second computing unit, presets aperture for obtaining described first based on the described current operation aperture obtained and default aperture coefficient calculations;
Adjustment unit, presets aperture for the aperture of described electric expansion valve being adjusted to described first.
Preferably, the control device of described electric expansion valve also comprises:
Preset aperture acquisition module, for the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval different time, obtain interval the second corresponding default aperture of preset temperature belonging to described Current Temperatures;
Second aperture adjusting module, presets aperture for the aperture of described electric expansion valve being adjusted to described second.
The present invention obtains the Current Temperatures of environment residing for outdoor unit of air-conditioning system by the cycle, then the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, the present operating frequency of air-conditioning compressor is obtained every prefixed time interval, then, when getting described present operating frequency at every turn, the aperture of described electric expansion valve is adjusted based on described present operating frequency; Achieve when the change of the interval constant i.e. outdoor environment temperature of the preset temperature belonging to the Current Temperatures of environment residing for air-conditioning system is less, timing is according to the aperture of the present operating frequency adjustment electric expansion valve of compressor, and then the object of the meticulous adjustment of the aperture reaching electric expansion valve, make air-conditioning system all the time according to preferably throttle pattern operation, improve the cooling or heating effect after air-conditioning system start and efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of control method first embodiment of electric expansion valve of the present invention;
Fig. 2 is the schematic flow sheet of control method second embodiment of electric expansion valve of the present invention;
Fig. 3 is the refinement schematic flow sheet obtaining target exhaust temperature step in control method the 3rd embodiment of electric expansion valve of the present invention;
Fig. 4 is the refinement schematic flow sheet adjusting the aperture step of electric expansion valve in control method the 4th embodiment of electric expansion valve of the present invention;
Fig. 5 is the schematic flow sheet of control method the 5th embodiment of electric expansion valve of the present invention;
Fig. 6 is the high-level schematic functional block diagram of control device first embodiment of electric expansion valve of the present invention;
Fig. 7 is the high-level schematic functional block diagram of control device second embodiment of electric expansion valve of the present invention;
Fig. 8 is the refinement high-level schematic functional block diagram of delivery temperature acquisition module in control device the 3rd embodiment of electric expansion valve of the present invention;
Fig. 9 is the refinement high-level schematic functional block diagram of the first aperture adjusting module in control device the 4th embodiment of electric expansion valve of the present invention;
Figure 10 is the high-level schematic functional block diagram of control device the 5th embodiment of electric expansion valve of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of control method of electric expansion valve.With reference to the schematic flow sheet that Fig. 1, Fig. 1 are control method first embodiment of electric expansion valve of the present invention.
In the present embodiment, the control method of this electric expansion valve comprises:
Step S10, the Current Temperatures of environment residing for cycle acquisition outdoor unit of air-conditioning system;
Wherein, the cycle obtaining the Current Temperatures of environment residing for outdoor unit of air-conditioning system can be set to 2 ~ 3 minutes.The control chip cycle of outdoor unit of air-conditioning system obtains the second temperature of environment residing for described off-premises station, namely the cycle obtains the Current Temperatures of environment residing for off-premises station, in the present embodiment, off-premises station can be provided with temperature sensor, and the control chip of outdoor unit of air-conditioning system obtains the Current Temperatures of environment residing for outdoor unit of air-conditioning system by this temperature sensor cycle.
Step S20, the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, every the present operating frequency of prefixed time interval acquisition air-conditioning compressor;
Table 1
| Temperature range (DEG C) | Initial opening | Coefficient of frequency a | Constant b |
| Be greater than 40 | 200 | 0.30 | 24 |
| (29，40] | 250 | 0.53 | 30 |
| (24，29] | 210 | 0.40 | 46 |
| (22，24] | 400 | 0.40 | 62 |
| (20，22] | 150 | 2.10 | 5 |
| (15，20] | 180 | 3.00 | 20 |
| (10，15] | 230 | 3.00 | 10 |
| (5，10] | 250 | 0.70 | 19 |
| (-3，5] | 300 | 0.72 | 24 |
| (-9，-3] | 350 | 0.68 | 28 |
| Be less than or equal to-9 | 380 | 0.62 | 40 |
Wherein, prefixed time interval can be set to 2 ~ 3 minutes, the preset temperature belonging to Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, air-conditioning system is described in the interval stable operation of this preset temperature, now, the control chip of outdoor unit of air-conditioning system obtains the current exhaust gas temperature of described compressor and target exhaust temperature corresponding to described second temperature every prefixed time interval.In the present embodiment, air-conditioning system stores preset temperature interval, such as, temperature range as shown in table 1, be greater than 40 DEG C, (29 DEG C, 40 DEG C], (24 DEG C, 29 DEG C] and (22 DEG C, 24 DEG C] temperature range be that cryogenic temperature is interval, (20 DEG C, 22 DEG C], (15 DEG C, 20 DEG C], (10 DEG C, 15 DEG C], (5 DEG C, 10 DEG C], (-3 DEG C, 5 DEG C], (-9 DEG C,-3 DEG C] and be less than or equal to-9 DEG C of equitemperatures intervals for heating temperature range, the temperature range in each preset temperature interval and the quantity in preset temperature interval can according to concrete environment/geographical position etc. by user's sets itself, certainly, air-conditioning system can store the grouping information in multiple default temperature interval, wherein, in table 1, the initial opening of the interval corresponding electric expansion valve of each preset temperature is through the preferably initial opening of lot of experiment validation, and each preset temperature interval is equipped with the predeterminated frequency coefficient a of corresponding compressor, target exhaust temperature T can carry out calculating by the current running frequency F of compressor and predeterminated frequency coefficient a and obtain, its computing formula is: T=a*F, wherein, the predeterminated frequency coefficient a that in table 1, each temperature range is corresponding is through the preferably predeterminated frequency coefficient of lot of experiment validation.
Step S30, when getting described present operating frequency at every turn, adjusts the aperture of described electric expansion valve based on described present operating frequency.
When getting described present operating frequency at every turn, the control chip of outdoor unit of air-conditioning system adjusts the aperture of described electric expansion valve according to present operating frequency.
In the present embodiment, when the compressor start of air-conditioning system, the Current Temperatures of environment residing for described outdoor unit of air-conditioning system can be obtained; Determine that the preset temperature belonging to described Current Temperatures is interval; The aperture of described electric expansion valve is adjusted to the interval corresponding initial opening of preset temperature belonging to described Current Temperatures.When air-conditioning system starts, the Current Temperatures of environment residing for outdoor unit of air-conditioning system, the aperture of described electric expansion valve is adjusted to the interval corresponding initial opening of preset temperature belonging to described Current Temperatures, to make air-conditioning system run according to preferably throttle pattern, and then the cooling or heating effect that improve after air-conditioning system start and efficiency.
In the present embodiment, the Current Temperatures of environment residing for outdoor unit of air-conditioning system is obtained by the cycle, then the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, the present operating frequency of air-conditioning compressor is obtained every prefixed time interval, then, when getting described present operating frequency at every turn, the aperture of described electric expansion valve is adjusted based on described present operating frequency; Achieve when the change of the interval constant i.e. outdoor environment temperature of the preset temperature belonging to the Current Temperatures of environment residing for air-conditioning system is less, timing is according to the aperture of the present operating frequency adjustment electric expansion valve of compressor, and then the object of the meticulous adjustment of the aperture reaching electric expansion valve, make air-conditioning system all the time according to preferably throttle pattern operation, improve the cooling or heating effect after air-conditioning system start and efficiency.
Propose the second embodiment of the control method of electric expansion valve of the present invention based on the first embodiment, with reference to Fig. 2, in the present embodiment, after step S20, the control method of this electric expansion valve also comprises:
Step S40, obtains the current exhaust gas temperature of target exhaust temperature corresponding to described present operating frequency and described compressor;
When getting the present operating frequency of air-conditioning compressor at every turn, the control chip of outdoor unit of air-conditioning system obtains the current exhaust gas temperature of target exhaust temperature corresponding to described present operating frequency and described compressor.Wherein, as shown in table 1, each preset temperature interval is equipped with the predeterminated frequency coefficient a of corresponding compressor, by obtaining the interval corresponding predeterminated frequency coefficient a of preset temperature belonging to Current Temperatures, target exhaust temperature T can carry out calculating by the current running frequency F of compressor and predeterminated frequency coefficient a and obtain, its computing formula is: T=a*F, and wherein, the predeterminated frequency coefficient a that in table 1, each temperature range is corresponding is through the preferably predeterminated frequency coefficient of lot of experiment validation.
Step S50, obtains the temperature gap of described current exhaust gas temperature and described target exhaust temperature;
Wherein, temperature gap is current exhaust gas temperature-target exhaust temperature.
Step S30 comprises: when getting described temperature gap at every turn, adjusts the aperture of described electric expansion valve based on described temperature gap.
When getting temperature gap at every turn, the control chip of outdoor unit of air-conditioning system adjusts the aperture of described electric expansion valve according to temperature gap.
The present embodiment is by obtaining the current exhaust gas temperature of target exhaust temperature corresponding to described present operating frequency and described compressor, then the temperature gap of described current exhaust gas temperature and described target exhaust temperature is obtained, then when getting described temperature gap at every turn, the aperture of described electric expansion valve is adjusted based on described temperature gap, achieve when the change of the interval constant i.e. outdoor environment temperature of the preset temperature belonging to the Current Temperatures of environment residing for air-conditioning system is less, timing is according to the aperture of the temperature gap adjustment electric expansion valve of compressor, and then the object of the meticulous adjustment of the aperture reaching electric expansion valve, make air-conditioning system all the time according to preferably throttle pattern operation, further increase the cooling or heating effect after air-conditioning system start and efficiency.
Propose the 3rd embodiment of the control method of electric expansion valve of the present invention based on the second embodiment, with reference to Fig. 3, in the present embodiment, the step obtaining target exhaust temperature corresponding to described present operating frequency in step S40 comprises:
Step S41, obtains the interval corresponding predeterminated frequency coefficient of preset temperature belonging to described Current Temperatures;
Step S42, obtains described target exhaust temperature based on the described present operating frequency got and described predeterminated frequency coefficient calculations.
In the present embodiment, as shown in table 1, preset temperature interval belonging to each Current Temperatures is equipped with the predeterminated frequency coefficient a of corresponding compressor, after obtaining the interval corresponding predeterminated frequency coefficient a of the preset temperature belonging to described Current Temperatures, target exhaust temperature T can be calculated by the present operating frequency F of compressor and predeterminated frequency coefficient a, wherein, the present operating frequency F of target exhaust temperature T and compressor and the computing formula of predeterminated frequency coefficient a are: T=a*F; Preferably, in the present embodiment, each preset temperature interval is also provided with corresponding aperture penalty constant b, present operating frequency F, the aperture penalty constant b of target exhaust temperature T and compressor and the computing formula of predeterminated frequency coefficient a are: T=a*F+b, wherein, in table 1, the interval corresponding predeterminated frequency coefficient a and aperture penalty constant b of each preset temperature is through preferably predeterminated frequency coefficient and the aperture penalty constant of lot of experiment validation.
The present embodiment is by obtaining the interval corresponding predeterminated frequency coefficient of preset temperature belonging to Current Temperatures, then described target exhaust temperature is obtained based on the described present operating frequency obtained and described predeterminated frequency coefficient calculations, achieve the accurate calculating of target exhaust temperature, improve the accurate of target exhaust temperature and accuracy, and then improve the accuracy of electronic expansion valve opening adjustment, further increase the energy-saving efficiency of air-conditioning system.
Propose the 4th embodiment of the control method of electric expansion valve of the present invention based on the second embodiment, with reference to Fig. 4, in the present embodiment, step S30 comprises:
Step S31, determines that the preset temperature difference belonging to described temperature gap is interval;
Table 2
| Temperature gap interval (DEG C) | 3rd presets aperture Km |
| Be more than or equal to 6 | Km＝Kx*(1-3c) |
| (4，6] | Km＝Kx*(1-2c) |
| (2，4] | Km＝Kx*(1-c) |
| (-2，2] | Km＝Kx |
| (-4，-2] | Km＝Kx*(1+d) |
| (-6，-4] | Km＝Kx*(1+2d) |
| Be less than or equal to-6 | Km＝Kx*(1+3d) |
In the present embodiment, as shown in table 2, air-conditioning system stores the computing formula of the first interval and corresponding with temperature gap interval default aperture of preset temperature difference.Therefore first described temperature gap and preset temperature difference interval are carried out matching operation by the control chip of outdoor unit of air-conditioning system, interval to determine the preset temperature difference belonging to described temperature gap.
Step S32, obtains the current operation aperture of the interval corresponding default aperture coefficient of described preset temperature difference and the described electric expansion valve determined;
In the present embodiment, preset aperture coefficient and carry out corresponding setting according to preset temperature difference interval, as shown in table 2, preset aperture coefficient according to different preset temperature difference intervals be set to respectively (1-3c), (1-2c), (1-c), 1, (1+d), (1+2d) and (1+3d), wherein, c is the descent coefficient of electric expansion valve, d is the climbing number of electric expansion valve, and the descent coefficient c that in table 1, each temperature range is corresponding and climbing number d is through descent coefficient and the climbing number of the optimum of lot of experiment validation.After determining the preset temperature difference interval belonging to described temperature gap, the control chip of outdoor unit of air-conditioning system obtains the current operation aperture of the interval corresponding default aperture coefficient of described preset temperature difference and the described electric expansion valve determined.
Step S33, obtains described first based on the described current operation aperture obtained and default aperture coefficient calculations and presets aperture;
The control chip of outdoor unit of air-conditioning system calculates first according to the current operation aperture Kx obtained and default aperture coefficient g and presets aperture Km, wherein the first computing formula presetting aperture Km is: Km=Kx*g, such as, when the interval corresponding default aperture coefficient of preset temperature difference is (1-3c), the 3rd default aperture Km is: Km=Kx* (1-3c).
Step S34, is adjusted to described first and presets aperture by the aperture of described electric expansion valve.
In the present embodiment, interval by determining the preset temperature difference belonging to described temperature gap, then the current operation aperture of the interval corresponding default aperture coefficient of described preset temperature difference and the described electric expansion valve determined is obtained, then obtain described first based on the described current operation aperture obtained and default aperture coefficient calculations and preset aperture, finally the aperture of described electric expansion valve is adjusted to described first and presets aperture, achieve the aperture according to the default aperture coefficient of the interval correspondence of the preset temperature difference determined and the current operation aperture adjustment electric expansion valve of electric expansion valve, improve the accuracy of electronic expansion valve opening adjustment, further increase the energy-saving efficiency of air-conditioning system.
Propose the 5th embodiment of the control method of electric expansion valve of the present invention based on the first embodiment, in the present embodiment, after step slo, the control method of this electric expansion valve also comprises:
Step S60, the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval different time, obtain interval the second corresponding default aperture of preset temperature belonging to described Current Temperatures;
The preset temperature belonging to Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval different time, illustrate that residing for off-premises station, the variations in temperature of environment is larger, now need again according to the aperture of preset temperature interval corresponding initial opening adjustment electric expansion valve, therefore, the control chip of outdoor unit of air-conditioning system obtains the second default aperture of the interval corresponding electric expansion valve of preset temperature belonging to Current Temperatures.
Step S70, is adjusted to described second and presets aperture by the aperture of described electric expansion valve.
When get the interval correspondence of the preset temperature belonging to Current Temperatures second presets aperture, the aperture of described electric expansion valve is adjusted to described second and presets aperture by the control chip of outdoor unit of air-conditioning system, and namely the control chip of outdoor unit of air-conditioning system controls electric expansion valve and presets aperture operation according to second.
The present embodiment by the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval different time, obtain interval the second corresponding default aperture of preset temperature belonging to described Current Temperatures, then the aperture of described electric expansion valve is adjusted to described second and presets aperture, achieve the preset temperature belonging to the Current Temperatures of environment residing for air-conditioning system interval with on a cycle environment temperature belonging to preset temperature interval different time, the aperture of adjustment electric expansion valve, make air-conditioning system all the time according to preferably throttle pattern operation, further increase the cooling or heating effect after air-conditioning system start and efficiency.
The present invention further provides a kind of control device of electric expansion valve.With reference to the high-level schematic functional block diagram that Fig. 6, Fig. 6 are control device first embodiment of electric expansion valve of the present invention.
In the present embodiment, the control device of this electric expansion valve comprises:
Environment temperature acquisition module 10, obtains the Current Temperatures of environment residing for outdoor unit of air-conditioning system for the cycle;
Wherein, the cycle obtaining the Current Temperatures of environment residing for outdoor unit of air-conditioning system can be set to 2 ~ 3 minutes.The control chip cycle of outdoor unit of air-conditioning system obtains the second temperature of environment residing for described off-premises station, namely the cycle obtains the Current Temperatures of environment residing for off-premises station, in the present embodiment, off-premises station can be provided with temperature sensor, and environment temperature acquisition module 10 obtains the Current Temperatures of environment residing for outdoor unit of air-conditioning system by this temperature sensor cycle.
Operating frequency acquisition module 20, for the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, every the present operating frequency of prefixed time interval acquisition air-conditioning compressor;
Wherein, prefixed time interval can be set to 2 ~ 3 minutes, the preset temperature belonging to Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, air-conditioning system is described in the interval stable operation of this preset temperature, now, the control chip of outdoor unit of air-conditioning system obtains the current exhaust gas temperature of described compressor and target exhaust temperature corresponding to described second temperature every prefixed time interval.In the present embodiment, air-conditioning system stores preset temperature interval, such as, temperature range as shown in table 1, be greater than 40 DEG C, (29 DEG C, 40 DEG C], (24 DEG C, 29 DEG C] and (22 DEG C, 24 DEG C] temperature range be that cryogenic temperature is interval, (20 DEG C, 22 DEG C], (15 DEG C, 20 DEG C], (10 DEG C, 15 DEG C], (5 DEG C, 10 DEG C], (-3 DEG C, 5 DEG C], (-9 DEG C,-3 DEG C] and be less than or equal to-9 DEG C of equitemperatures intervals for heating temperature range, the temperature range in each preset temperature interval and the quantity in preset temperature interval can according to concrete environment/geographical position etc. by user's sets itself, certainly, air-conditioning system can store the grouping information in multiple default temperature interval, wherein, in table 1, the initial opening of the interval corresponding electric expansion valve of each preset temperature is through the preferably initial opening of lot of experiment validation, and each preset temperature interval is equipped with the predeterminated frequency coefficient a of corresponding compressor, target exhaust temperature T can carry out calculating by the current running frequency F of compressor and predeterminated frequency coefficient a and obtain, its computing formula is: T=a*F, wherein, the predeterminated frequency coefficient a that in table 1, each temperature range is corresponding is through the preferably predeterminated frequency coefficient of lot of experiment validation.
First aperture adjusting module 30, for when getting described present operating frequency at every turn, adjusts the aperture of described electric expansion valve based on described present operating frequency.
In the present embodiment, when the compressor start of air-conditioning system, the Current Temperatures of environment residing for described outdoor unit of air-conditioning system can be obtained; Determine that the preset temperature belonging to described Current Temperatures is interval; The aperture of described electric expansion valve is adjusted to the interval corresponding initial opening of preset temperature belonging to described Current Temperatures.When air-conditioning system starts, the Current Temperatures of environment residing for outdoor unit of air-conditioning system, the aperture of described electric expansion valve is adjusted to the interval corresponding initial opening of preset temperature belonging to described Current Temperatures, to make air-conditioning system run according to preferably throttle pattern, and then the cooling or heating effect that improve after air-conditioning system start and efficiency.
In the present embodiment, the Current Temperatures of environment residing for outdoor unit of air-conditioning system is obtained by environment temperature acquisition module 10 cycle, then the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, operating frequency acquisition module 20 obtains the present operating frequency of air-conditioning compressor every prefixed time interval, then, when getting described present operating frequency at every turn, the first aperture adjusting module 30 adjusts the aperture of described electric expansion valve based on described present operating frequency; Achieve when the change of the interval constant i.e. outdoor environment temperature of the preset temperature belonging to the Current Temperatures of environment residing for air-conditioning system is less, timing is according to the aperture of the present operating frequency adjustment electric expansion valve of compressor, and then the object of the meticulous adjustment of the aperture reaching electric expansion valve, make air-conditioning system all the time according to preferably throttle pattern operation, improve the cooling or heating effect after air-conditioning system start and efficiency.
Propose the second embodiment of the control device of electric expansion valve of the present invention based on the first embodiment, with reference to Fig. 7, in the present embodiment, the control device of this electric expansion valve also comprises:
Delivery temperature acquisition module 40, for obtaining the current exhaust gas temperature of target exhaust temperature corresponding to described present operating frequency and described compressor;
When getting the present operating frequency of air-conditioning compressor at every turn, delivery temperature acquisition module 40 obtains the current exhaust gas temperature of target exhaust temperature corresponding to described present operating frequency and described compressor.Wherein, as shown in table 1, each preset temperature interval is equipped with the predeterminated frequency coefficient a of corresponding compressor, by obtaining the interval corresponding predeterminated frequency coefficient a of preset temperature belonging to Current Temperatures, target exhaust temperature T can carry out calculating by the current running frequency F of compressor and predeterminated frequency coefficient a and obtain, its computing formula is: T=a*F, and wherein, the predeterminated frequency coefficient a that in table 1, each temperature range is corresponding is through the preferably predeterminated frequency coefficient of lot of experiment validation.
Temperature gap acquisition module 50, for obtaining the temperature gap of described current exhaust gas temperature and described target exhaust temperature;
Wherein, temperature gap is current exhaust gas temperature-target exhaust temperature.
Described first aperture adjusting module 30, also for when getting described temperature gap at every turn, adjusts the aperture of described electric expansion valve based on described temperature gap.
When temperature gap acquisition module 50 gets temperature gap at every turn, the first aperture adjusting module 30 adjusts the aperture of described electric expansion valve according to temperature gap.
The present embodiment obtains the current exhaust gas temperature of target exhaust temperature corresponding to described present operating frequency and described compressor by delivery temperature acquisition module 40, then temperature gap acquisition module 50 obtains the temperature gap of described current exhaust gas temperature and described target exhaust temperature, then when getting described temperature gap at every turn, first aperture adjusting module 30 adjusts the aperture of described electric expansion valve based on described temperature gap, achieve when the change of the interval constant i.e. outdoor environment temperature of the preset temperature belonging to the Current Temperatures of environment residing for air-conditioning system is less, timing is according to the aperture of the temperature gap adjustment electric expansion valve of compressor, and then the object of the meticulous adjustment of the aperture reaching electric expansion valve, make air-conditioning system all the time according to preferably throttle pattern operation, further increase the cooling or heating effect after air-conditioning system start and efficiency.
Propose the 3rd embodiment of the control device of electric expansion valve of the present invention based on the second embodiment, with reference to Fig. 8, in the present embodiment, described delivery temperature acquisition module 40 comprises:
First acquiring unit 41, for obtaining the interval corresponding predeterminated frequency coefficient of preset temperature belonging to described Current Temperatures;
First computing unit 42, for obtaining described target exhaust temperature based on the described present operating frequency got and described predeterminated frequency coefficient calculations.
In the present embodiment, as shown in table 1, preset temperature interval belonging to each Current Temperatures is equipped with the predeterminated frequency coefficient a of corresponding compressor, after obtaining the interval corresponding predeterminated frequency coefficient a of the preset temperature belonging to described Current Temperatures, target exhaust temperature T can be calculated by the present operating frequency F of compressor and predeterminated frequency coefficient a, wherein, the present operating frequency F of target exhaust temperature T and compressor and the computing formula of predeterminated frequency coefficient a are: T=a*F; Preferably, in the present embodiment, each preset temperature interval is also provided with corresponding aperture penalty constant b, present operating frequency F, the aperture penalty constant b of target exhaust temperature T and compressor and the computing formula of predeterminated frequency coefficient a are: T=a*F+b, wherein, in table 1, the interval corresponding predeterminated frequency coefficient a and aperture penalty constant b of each preset temperature is through preferably predeterminated frequency coefficient and the aperture penalty constant of lot of experiment validation.
The present embodiment obtains the interval corresponding predeterminated frequency coefficient of preset temperature belonging to Current Temperatures by the first acquiring unit 41, then the first computing unit 42 obtains described target exhaust temperature based on the described present operating frequency obtained and described predeterminated frequency coefficient calculations, achieve the accurate calculating of target exhaust temperature, improve the accurate of target exhaust temperature and accuracy, and then improve the accuracy of electronic expansion valve opening adjustment, further increase the energy-saving efficiency of air-conditioning system.
Propose the 4th embodiment of the control device of electric expansion valve of the present invention based on the second embodiment, with reference to Fig. 9, in the present embodiment, the first aperture adjusting module 30 comprises:
Determining unit 31, interval for determining the preset temperature difference belonging to described temperature gap;
In the present embodiment, as shown in table 2, air-conditioning system stores the computing formula of the first interval and corresponding with temperature gap interval default aperture of preset temperature difference.Therefore first described temperature gap and preset temperature difference interval are carried out matching operation by determining unit 31, interval to determine the preset temperature difference belonging to described temperature gap.
Second acquisition unit 32, for obtaining the current operation aperture of the interval corresponding default aperture coefficient of described preset temperature difference and the described electric expansion valve determined;
In the present embodiment, preset aperture coefficient and carry out corresponding setting according to preset temperature difference interval, as shown in table 2, preset aperture coefficient according to different preset temperature difference intervals be set to respectively (1-3c), (1-2c), (1-c), 1, (1+d), (1+2d) and (1+3d), wherein, c is the descent coefficient of electric expansion valve, d is the climbing number of electric expansion valve, and the descent coefficient c that in table 1, each temperature range is corresponding and climbing number d is through descent coefficient and the climbing number of the optimum of lot of experiment validation.After determining the preset temperature difference interval belonging to described temperature gap, second acquisition unit 32 obtains the current operation aperture of the interval corresponding default aperture coefficient of described preset temperature difference and the described electric expansion valve determined.
Second computing unit 33, presets aperture for obtaining described first based on the described current operation aperture obtained and default aperture coefficient calculations;
Second computing unit 33 calculates first according to the current operation aperture Kx obtained and default aperture coefficient g and presets aperture Km, wherein the first computing formula presetting aperture Km is: Km=Kx*g, such as, when the interval corresponding default aperture coefficient of preset temperature difference is (1-3c), the 3rd default aperture Km is: Km=Kx* (1-3c).
Adjustment unit 34, presets aperture for the aperture of described electric expansion valve being adjusted to described first.
In the present embodiment, determine that the preset temperature difference belonging to described temperature gap is interval by determining unit 31, then second acquisition unit 32 obtains the current operation aperture of the interval corresponding default aperture coefficient of described preset temperature difference and the described electric expansion valve determined, then the second computing unit 33 obtains described first based on the described current operation aperture obtained and default aperture coefficient calculations and presets aperture, the aperture of described electric expansion valve is adjusted to described first and presets aperture by last adjustment unit 34, achieve the aperture according to the default aperture coefficient of the interval correspondence of the preset temperature difference determined and the current operation aperture adjustment electric expansion valve of electric expansion valve, improve the accuracy of electronic expansion valve opening adjustment, further increase the energy-saving efficiency of air-conditioning system.
Propose the 5th embodiment of the control device of electric expansion valve of the present invention based on the first embodiment, with reference to Figure 10, in the present embodiment, the control device of electric expansion valve also comprises:
Preset aperture acquisition module 60, for the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval different time, obtain interval the second corresponding default aperture of preset temperature belonging to described Current Temperatures;
The preset temperature belonging to Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval different time, illustrate that residing for off-premises station, the variations in temperature of environment is larger, now need again according to the aperture of preset temperature interval corresponding initial opening adjustment electric expansion valve, therefore, the second default aperture that aperture acquisition module 60 obtains the interval corresponding electric expansion valve of preset temperature belonging to Current Temperatures is preset.
Second aperture adjusting module 70, presets aperture for the aperture of described electric expansion valve being adjusted to described second.
The present embodiment by the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval different time, preset the second default aperture that aperture acquisition module 60 obtains the interval correspondence of preset temperature belonging to described Current Temperatures, then the aperture of described electric expansion valve is adjusted to described second and presets aperture by the second aperture adjusting module 70, achieve the preset temperature belonging to the Current Temperatures of environment residing for air-conditioning system interval with on a cycle environment temperature belonging to preset temperature interval different time, the aperture of adjustment electric expansion valve, make air-conditioning system all the time according to preferably throttle pattern operation, further increase the cooling or heating effect after air-conditioning system start and efficiency.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a control method for electric expansion valve, is characterized in that, the control method of described electric expansion valve comprises the following steps:
The Current Temperatures of environment residing for cycle acquisition outdoor unit of air-conditioning system;
The preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, every the present operating frequency of prefixed time interval acquisition air-conditioning compressor;
When getting described present operating frequency at every turn, adjust the aperture of described electric expansion valve based on described present operating frequency.
2. the control method of electric expansion valve as claimed in claim 1, it is characterized in that, the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, after prefixed time interval obtains the step of the present operating frequency of air-conditioning compressor, the control method of described electric expansion valve also comprises:
Obtain the current exhaust gas temperature of target exhaust temperature corresponding to described present operating frequency and described compressor;
Obtain the temperature gap of described current exhaust gas temperature and described target exhaust temperature;
When getting described present operating frequency at every turn, the step adjusting the aperture of described electric expansion valve based on described present operating frequency comprises: when getting described temperature gap at every turn, adjusts the aperture of described electric expansion valve based on described temperature gap.
3. the control method of electric expansion valve as claimed in claim 2, it is characterized in that, the step of the target exhaust temperature that the described present operating frequency of described acquisition is corresponding comprises:
Obtain the interval corresponding predeterminated frequency coefficient of preset temperature belonging to described Current Temperatures;
Described target exhaust temperature is obtained based on the described present operating frequency got and described predeterminated frequency coefficient calculations.
4. the control method of electric expansion valve as claimed in claim 2, it is characterized in that, the step adjusting the aperture of described electric expansion valve based on described temperature gap comprises:
Determine that the preset temperature difference belonging to described temperature gap is interval;
Obtain the current operation aperture of the interval corresponding default aperture coefficient of described preset temperature difference and the described electric expansion valve determined;
Obtain described first based on the described current operation aperture obtained and default aperture coefficient calculations and preset aperture;
The aperture of described electric expansion valve is adjusted to described first and presets aperture.
5. the control method of the electric expansion valve as described in any one of Claims 1-4, is characterized in that, after the step of the Current Temperatures of environment residing for described cycle acquisition outdoor unit of air-conditioning system, the control method of described electric expansion valve also comprises:
The preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval different time, obtain interval the second corresponding default aperture of preset temperature belonging to described Current Temperatures;
The aperture of described electric expansion valve is adjusted to described second and presets aperture.
6. a control device for electric expansion valve, is characterized in that, the control device of described electric expansion valve comprises:
Environment temperature acquisition module, obtains the Current Temperatures of environment residing for outdoor unit of air-conditioning system for the cycle;
Operating frequency acquisition module, for the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval identical time, every the present operating frequency of prefixed time interval acquisition air-conditioning compressor;
First aperture adjusting module, for when getting described present operating frequency at every turn, adjusts the aperture of described electric expansion valve based on described present operating frequency.
7. the control device of electric expansion valve as claimed in claim 6, it is characterized in that, the control device of described electric expansion valve also comprises:
Delivery temperature acquisition module, for obtaining the current exhaust gas temperature of target exhaust temperature corresponding to described present operating frequency and described compressor;
Temperature gap acquisition module, for obtaining the temperature gap of described current exhaust gas temperature and described target exhaust temperature;
Described first aperture adjusting module, also for when getting described temperature gap at every turn, adjusts the aperture of described electric expansion valve based on described temperature gap.
8. the control device of electric expansion valve as claimed in claim 7, it is characterized in that, described delivery temperature acquisition module comprises:
First acquiring unit, for obtaining the interval corresponding predeterminated frequency coefficient of preset temperature belonging to described Current Temperatures;
First computing unit, for obtaining described target exhaust temperature based on the described present operating frequency got and described predeterminated frequency coefficient calculations.
9. the control device of electric expansion valve as claimed in claim 7, it is characterized in that, described first aperture adjusting module comprises:
Determining unit, interval for determining the preset temperature difference belonging to described temperature gap;
Second acquisition unit, for obtaining the current operation aperture of the interval corresponding default aperture coefficient of described preset temperature difference and the described electric expansion valve determined;
Second computing unit, presets aperture for obtaining described first based on the described current operation aperture obtained and default aperture coefficient calculations;
Adjustment unit, presets aperture for the aperture of described electric expansion valve being adjusted to described first.
10. the control device of the electric expansion valve as described in any one of claim 6 to 9, is characterized in that, the control device of described electric expansion valve also comprises:
Preset aperture acquisition module, for the preset temperature belonging to described Current Temperatures interval with on a cycle environment temperature belonging to preset temperature interval different time, obtain interval the second corresponding default aperture of preset temperature belonging to described Current Temperatures;
Second aperture adjusting module, presets aperture for the aperture of described electric expansion valve being adjusted to described second.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58106344A (en) * | 1981-12-18 | 1983-06-24 | Yamatake Honeywell Co Ltd | Terminal controller with level controlling function |
| CN102914025A (en) * | 2012-09-18 | 2013-02-06 | 宁波奥克斯电气有限公司 | Method for controlling direct current frequency conversion air-conditioner while operating in refrigeration mode |
| CN103344069A (en) * | 2013-06-26 | 2013-10-09 | 广东美的制冷设备有限公司 | Method and device for controlling electronic expansion valve |
| CN103512145A (en) * | 2012-06-19 | 2014-01-15 | 珠海格力电器股份有限公司 | Adjusting method and adjusting device of electronic expansion valve for air conditioning unit |
| CN104633862A (en) * | 2015-02-03 | 2015-05-20 | 深圳麦格米特电气股份有限公司 | Control method of electronic expansion valve in refrigeration operation of variable frequency air conditioner |
-
2015
- 2015-12-18 CN CN201510967096.3A patent/CN105423497B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58106344A (en) * | 1981-12-18 | 1983-06-24 | Yamatake Honeywell Co Ltd | Terminal controller with level controlling function |
| CN103512145A (en) * | 2012-06-19 | 2014-01-15 | 珠海格力电器股份有限公司 | Adjusting method and adjusting device of electronic expansion valve for air conditioning unit |
| CN102914025A (en) * | 2012-09-18 | 2013-02-06 | 宁波奥克斯电气有限公司 | Method for controlling direct current frequency conversion air-conditioner while operating in refrigeration mode |
| CN103344069A (en) * | 2013-06-26 | 2013-10-09 | 广东美的制冷设备有限公司 | Method and device for controlling electronic expansion valve |
| CN104633862A (en) * | 2015-02-03 | 2015-05-20 | 深圳麦格米特电气股份有限公司 | Control method of electronic expansion valve in refrigeration operation of variable frequency air conditioner |
Cited By (31)
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| CN106196507A (en) * | 2016-08-19 | 2016-12-07 | 芜湖美智空调设备有限公司 | Air-conditioner and the control method of air-conditioner |
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