CN104633862B - The control method of electric expansion valve during a kind of refrigerating of convertible frequency air conditioner operation - Google Patents
The control method of electric expansion valve during a kind of refrigerating of convertible frequency air conditioner operation Download PDFInfo
- Publication number
- CN104633862B CN104633862B CN201510055997.5A CN201510055997A CN104633862B CN 104633862 B CN104633862 B CN 104633862B CN 201510055997 A CN201510055997 A CN 201510055997A CN 104633862 B CN104633862 B CN 104633862B
- Authority
- CN
- China
- Prior art keywords
- superheat
- expansion valve
- degree
- electric expansion
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- F24F11/30—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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- 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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
Abstract
The invention discloses the control method of electric expansion valve during a kind of operation of refrigerating of convertible frequency air conditioner, the reference opening amount of electric expansion valve is multiplied by compressor frequency equal to reference opening amount coefficient；The numerical value of reference opening amount coefficient is related to outdoor environment temperature and compressor frequency.For the present invention when outdoor temperature and/or compressor frequency change, electric expansion valve quickly can reasonably be adjusted to most suitable aperture.The reasonability and reaction speed of electronic expansion valve regulation can be improved, improves air conditioner refrigeration effect, fully improves air conditioner refrigerating efficiency.
Description
[technical field]
The present invention relates to air conditioning control method, more particularly to when a kind of refrigerating of convertible frequency air conditioner is run electric expansion valve control
Method.
[background technology]
Convertible frequency air-conditioner popularity rate gradually steps up at present, and the convertible frequency air-conditioner using electric expansion valve as restricting element is increasingly
It is more.Existing convertible frequency air-conditioner is usually to be controlled using the return-air degree of superheat, and the return-air degree of superheat refers to compressor suction temperature and evaporator temperature
The difference of degree.Overheat one target zone of setting, when the degree of superheat is more than the higher limit of target zone, expansion valve opening increase, mistake
When temperature is less than the lower limit of target zone, expansion valve opening reduces, it is therefore an objective to which the return-air degree of superheat is maintained to the target of setting
In the range of.
Two kinds of return-air control method for overheat are relatively common:
The first is:Program has first set valve opening corresponding to compressor frequency, and uncomfortable valve is opened in compressor start 7 minutes
Degree；Electronic expansion corresponds to valve opening by compressor frequency；After 7 minutes valve opening and return-air degree of superheat control are corresponded to by compressor frequency
System combines regulation.Its shortcoming is, when outdoor environment temperature is raised and lowered suddenly, this method can only work as compressor frequency
During change, the valve opening of benchmark can just change.It is the valve opening that can not adjust benchmark that outdoor environment, which changes, can only pass through heat
Degree regulation, but degree of superheat regulation be again it is slow, institute in this way under when outdoor temperature be mutated, it is impossible to it is quick to be adjusted to properly
Aperture, influence air conditioner refrigeration effect, reduce air conditioner refrigerating efficiency.
It is for second:Program has first set valve opening corresponding to outdoor environment temperature, and uncomfortable valve is opened in compressor start 7 minutes
Degree, electronic expansion correspond to valve opening by outdoor environment temperature；After 7 minutes valve opening and return-air degree of superheat control are corresponded to by outdoor temperature
System combines regulation.Its shortcoming is that this method can only be when being changed according to outdoor temperature, and the valve opening of benchmark can just change.Pressure
Contracting unit frequency changes the valve opening that can not adjust benchmark, and valve opening can only be adjusted by temperature, but degree of superheat regulation is again slow
's；Institute in this way under when compressor frequency is mutated, expansion valve can not quickly be adjusted to suitable aperture, influence air conditioner refrigerating
Effect, reduce air conditioner refrigerating efficiency.
Above two control method is all not accurate enough, has certain limitation, when outdoor temperature or compressor frequency are dashed forward
During change, or when outdoor temperature and compressor frequency change simultaneously, adjusting method is single, it is impossible to which comprehensive while fast-acting modulator valve is opened
Degree, causes valve rapidly and accurately can not be adjusted into the most suitable aperture of refrigeration system.Influence air conditioner refrigeration effect, or even expansion valve
There is the risk of overshoot.
[content of the invention]
No matter outdoor temperature or compressor frequency change the technical problem to be solved in the present invention is to provide a kind of, electronics
The reference opening amount of expansion valve can be adjusted according to outdoor environment temperature and compressor frequency, the convertible frequency air-conditioner of good energy-conserving effect
The control method of electric expansion valve during refrigerating operaton.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is electricity when a kind of refrigerating of convertible frequency air conditioner is run
The control method of sub- expansion valve, the reference opening amount of electric expansion valve are multiplied by compressor frequency equal to reference opening amount coefficient；Benchmark is opened
The numerical value for spending coefficient is related to outdoor environment temperature and compressor frequency.
The control method of electric expansion valve during above-described refrigerating of convertible frequency air conditioner operation, outdoor environment temperature is according to temperature
Height is divided into a plurality of subregions；Each outdoor environment temperature subregion corresponds to a plurality of benchmark according to the size of compressor frequency again and opened
Spend coefficient.
The control method of electric expansion valve during the operation of above-described refrigerating of convertible frequency air conditioner, during operation of air conditioner, electronics
The aperture of expansion valve is made up of reference opening amount and offset, and the numerical value of the return-air degree of superheat is judged by the interval time of setting, according to
The size of the return-air degree of superheat determines offset, compensates accumulation：
Return-air degree of superheat Ts=Tsu-Te；
Wherein,
Tsu：Compressor return air temperature；
Te：Evaporator temperature；
1) the return-air degree of superheat is more than the higher limit of setting, valve opening=current aperture+offset；
Offset=K2 × (V_ing/ (((V_max-V_min)/2)+V_min)) × (Ts-T1)；
2) for the return-air degree of superheat between the upper limit of setting and lower limit, valve opening keeps constant；
3) the return-air degree of superheat is less than the lower limit of setting, valve opening=current aperture-offset.
Offset=K2 × (V_ing/ (((V_max-V_min)/2)+V_min)) × (T2-Ts)；
Wherein, K2:The penalty coefficient of setting；
T1:The refrigeration degree of superheat upper limit；
T2:Freeze degree of superheat lower limit；
V_max:The maximum opening of valve work；
V_min:The minimum aperture of valve work；
V_ing:The current aperture of electric expansion valve.
The control method of electric expansion valve, the acquiescence value of penalty coefficient are during above-described refrigerating of convertible frequency air conditioner operation
8；The acquiescence value for the degree of superheat upper limit of freezing is 4；The acquiescence value of refrigeration degree of superheat lower limit is 0；Valve work maximum opening is write from memory
Value is recognized for 480；The acquiescence value of the minimum aperture of valve work is 90.
The control method of electric expansion valve during the operation of above-described refrigerating of convertible frequency air conditioner, during operation of air conditioner, compression
When unit frequency and/or outdoor temperature change, reference opening amount value is recalculated；The aperture of electric expansion valve is opened for calculating benchmark again
The algebraical sum of angle value and accumulated compensation value before.
The control method of electric expansion valve during above-described refrigerating of convertible frequency air conditioner operation, by setting after air-conditioning start
Time just proceeds by compensation.
For the present invention when outdoor temperature and/or compressor frequency change, the reference opening amount of electric expansion valve can be according to room
External environment temperature is adjusted with compressor frequency, and electric expansion valve quickly can reasonably be adjusted to most suitable aperture.It can carry
The reasonability and reaction speed of high electronic expansion valve regulation, improve air conditioner refrigeration effect, fully improve air conditioner refrigerating efficiency.
[brief description of the drawings]
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
The regulation process signal of control method for electronic expansion valve when Fig. 1 is the operation of refrigerating of convertible frequency air conditioner of the embodiment of the present invention
Figure.
The flow chart of control method for electronic expansion valve when Fig. 2 is the operation of refrigerating of convertible frequency air conditioner of the embodiment of the present invention.
[embodiment]
The reference opening amount of electric expansion valve is according to outdoor environment temperature and compression during refrigerating of convertible frequency air conditioner operation of the present invention
Unit frequency combination is calculated, and when outdoor temperature or compressor frequency change, can be adjusted to most suitable aperture in time.
Electric expansion valve compensation value calculation is combined progress according to the aperture that electric expansion valve is presently in the return-air degree of superheat
Calculate, this compensation method is more accurate.
1st, reference opening amount calculates：
Formula one：Reference opening amount=K1 × compressor frequency
K1 is reference opening amount coefficient
Reference opening amount coefficient is divided respectively by outdoor environment temperature with compressor frequency.
According to outdoor environment temperature, it is divided into 8 regions：A areas, B areas, C areas, D areas, E areas, F areas, as shown in Table 1.
Each outdoor environment temperature subregion is divided into 3 coefficients according to the size of compressor frequency again, a total of 24 coefficients,
As shown in Table 2.
2nd, air-conditioning start refrigeration, compressor operating for a period of time after, electric expansion valve begins with compensation, then electric expansion valve
Aperture is made up of reference opening amount and offset.
According to the return-air degree of superheat, judge once within every 60 seconds, each offset accumulation.
First calculate the current degree of superheat:Return-air degree of superheat Ts=Tsu-Te, according to the comparison of the degree of superheat and sets target scope,
Divide three kinds of situations：
A, the degree of superheat is more than the higher limit of setting, valve opening increase, valve opening=current aperture+offset.
Offset=K2 × (V_ing/ (((V_max-V_min)/2)+V_min)) × (Ts-T1)
B, the degree of superheat:Between the upper limit and lower limit, valve compensation value keeps constant
C, the degree of superheat is less than the lower limit of setting, and valve opening is reduced, valve opening=current aperture-offset.
Offset=K2 × (V_ing/ (((V_max-V_min)/2)+V_min)) × (T2-Ts)
Wherein,
K2:Penalty coefficient gives tacit consent to value：8
T1:The refrigeration degree of superheat upper limit gives tacit consent to value：4
T2:Refrigeration degree of superheat lower limit gives tacit consent to value：0
V_max:The maximum opening of valve work gives tacit consent to value：480
V_min:The minimum aperture of valve work gives tacit consent to value：90
Tsu：Compressor return air temperature
Te：Evaporator temperature
V_ing:The current aperture of electric expansion valve
Table one：
| Region | Outdoor temperature scope |
| A areas | Outdoor temperature >=46 DEG C |
| B areas | 46 DEG C of 38 DEG C≤outdoor temperature ＜ |
| C areas | 38 DEG C of 31 DEG C≤outdoor temperature ＜ |
| D areas | 31 DEG C of 25 DEG C≤outdoor temperature ＜ |
| E areas | 25 DEG C of 20 DEG C≤outdoor temperature ＜ |
| F areas | 20 DEG C of 10 DEG C≤outdoor temperature ＜ |
| G areas | 10 DEG C of outdoor temperature ＜ |
Table 2：
Embodiment：Convertible frequency air-conditioner start refrigeration mode, 35 DEG C of outdoor temperature, running frequency 61HZ；Compressor operating is to 7
During minute, suction temperature is 16 DEG C, and evaporating temperature is 10 degree.When operation was to the 9th minute, outdoor temperature, which becomes from 35 DEG C, rises to 40
DEG C, frequency rises to 67HZ from 61HZ, and suction temperature is reduced to 13 DEG C by 16 DEG C, and 10 DEG C of evaporator temperature holding is constant.Operation is to the
10 minutes, outdoor temperature, compressor frequency, suction temperature, evaporator temperature kept constant.
(convertible frequency air-conditioner program is set：K2 is 8, and the degree of superheat upper limit is 4, and degree of superheat lower limit is 0, and maximum opening is 480 steps,
Minimum aperture is 90 steps)
(1) compressor start presses reference opening amount in 7 minutes：
35 DEG C of outdoor temperature corresponds to the C subregions of table one, corresponds to C subregions in table two, the COEFFICIENT K 1 during running frequency 58HZ
=4.4：
Reference opening amount=K1 × compressor frequency
=4.4 × 61
=268 steps
The reference opening amount that expansion valve in compressor start 7 minutes is calculated is 268 steps；
(2) compressor start calculates electric expansion valve offset after 7 minutes：
Return-air degree of superheat Ts=Tsu-Te
=16-10
=6
Set degree of superheat lower limit is 4, now calculates the upper limit that the gained return-air degree of superheat is more than the set degree of superheat
Value, valve opening need to increase
Data are substituted into formula：
Offset=K2 × (V_ing/ (((V_max-V_min)/2)+V_min)) × (Ts-T1)
=8 × (268/ (((480-90)/2)+90)) × (6-4)
=8 × (268/ (195+90)) × 2
=8 × 0.94 × 2
=15 steps
Calculated according to the degree of superheat, 15 steps are started compensating for after the 7th minute, show that the current aperture of valve is:268+15=283 is walked
(3) due to having entered single compensation, so the current aperture of valve has changed, so second offset of the 8th minute is:
Offset=K2 × (V_ing/ (((V_max-V_min)/2)+V_min)) × (Ts-T1)
=8 × (283/ (((480-90)/2)+90)) × (6-4)
=8 × (283/ (195+90)) × 2
=8 × 0.993 × 2
=16 steps
Calculated according to the degree of superheat, second of compensation is 16 steps after the 7th minute, show that the current aperture of valve is:268+(15+16)
=299 steps
(4) when compressor operating was to 9 minutes, compressor frequency changes with outdoor temperature, and compressor frequency rises from 61HZH
For 67HZ, outdoor temperature rises to 40 DEG C from 35 DEG C, and suction temperature by 16 DEG C is reduced to 13 DEG C, and (temperature rises to 5 DEG C and is only herein
Illustrate the application of formula)；Because compressor frequency changes, the reference opening amount of valve changes.Offset one twice before
Directly adding up, and continuously effective.Now need to recalculate reference opening amount.
Compressor frequency 67HZ, 40 DEG C of outdoor temperature correspond to B areas, and K1 is：4.8
Reference opening amount=K1 × compressor frequency
=4.8 × 67
=322 steps
Return-air degree of superheat Ts=Tsu-Te
=13-10
=3
For the return-air degree of superheat between the upper limit and lower limit, valve compensation value keeps originally constant.
The accumulation of the offset of step (2) and step (3) is effective, and the compensation of step (2) and step (3) is increase direction.
So current aperture=reference opening amount value of valve+accumulated compensation value before
=322+31
=353 steps
(5) when compressor operating was to 10 minutes, outdoor temperature, compressor frequency, suction temperature, evaporator temperature are kept not
Become.So valve opening keeps 353 steps constant.
Compared with present technology, the control method for electronic expansion valve of above example of the present invention, in refrigerating operaton, work as room
Outer temperature change, compressor frequency change, or both changes simultaneously, and electric expansion valve quickly can reasonably be adjusted to most suitable
Aperture.The reasonability and reaction speed of electronic expansion valve regulation can be improved, improves air conditioner refrigeration effect, fully improves air-conditioning
Refrigerating efficiency.
Note：Compressor frequency=compressor rotary speed/60, compressor rotary speed=compressor frequency × 60；For example, compressor frequency
When rate is 70HZ, compressor rotary speed=70 × 60=4200rpm/min.
Claims (3)
- A kind of 1. control method of electric expansion valve during refrigerating of convertible frequency air conditioner operation, it is characterised in that the benchmark of electric expansion valve Aperture is multiplied by compressor frequency equal to reference opening amount coefficient；The numerical value of reference opening amount coefficient and outdoor environment temperature and compressor frequency Rate is related；Outdoor environment temperature is divided into a plurality of subregions according to temperature height；Each outdoor environment temperature subregion is again according to compression The size of unit frequency corresponds to a plurality of reference opening amount coefficients；During operation of air conditioner, the aperture of electric expansion valve is by reference opening amount Formed with offset；The numerical value of the return-air degree of superheat is judged by the interval time of setting, determines to mend according to the size of the return-air degree of superheat Value is repaid, compensates accumulation：Return-air degree of superheat Ts=Tsu-Te；Wherein,Tsu：Compressor return air temperature；Te：Evaporator temperature；1) the return-air degree of superheat is more than the higher limit of setting, valve opening=current aperture+offset；Offset=K2 × (V_ing/ (((V_max-V_min)/2)+V_min)) × (Ts-T1)；2) for the return-air degree of superheat between the upper limit of setting and lower limit, valve opening keeps constant；3) the return-air degree of superheat is less than the lower limit of setting, valve opening=current aperture-offset；Offset=K2 × (V_ing/ (((V_max-V_min)/2)+V_min)) × (T2-Ts)；Wherein, K2:The penalty coefficient of setting；T1:The refrigeration degree of superheat upper limit；T2:Freeze degree of superheat lower limit；V_max:The maximum opening of valve work；V_min:The minimum aperture of valve work；V_ing:The current aperture of electric expansion valve；During operation of air conditioner, when compressor frequency and/or outdoor temperature change, reference opening amount value is recalculated；Electronic expansion The aperture of valve is calculating benchmark opening value again and the algebraical sum of accumulated compensation value before.
- 2. the control method of electric expansion valve during refrigerating of convertible frequency air conditioner operation according to claim 1, it is characterised in that mend The acquiescence value for repaying coefficient is 8；The acquiescence value for the degree of superheat upper limit of freezing is 4；The acquiescence value of refrigeration degree of superheat lower limit is 0； The acquiescence value of valve work maximum opening is 480；The acquiescence value of the minimum aperture of valve work is 90.
- 3. the control method of electric expansion valve during refrigerating of convertible frequency air conditioner operation according to claim 1, it is characterised in that empty Tuning to open the time after machine by setting just proceeds by compensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055997.5A CN104633862B (en) | 2015-02-03 | 2015-02-03 | The control method of electric expansion valve during a kind of refrigerating of convertible frequency air conditioner operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055997.5A CN104633862B (en) | 2015-02-03 | 2015-02-03 | The control method of electric expansion valve during a kind of refrigerating of convertible frequency air conditioner operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104633862A CN104633862A (en) | 2015-05-20 |
| CN104633862B true CN104633862B (en) | 2018-01-09 |
Family
ID=53212901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510055997.5A Active CN104633862B (en) | 2015-02-03 | 2015-02-03 | The control method of electric expansion valve during a kind of refrigerating of convertible frequency air conditioner operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104633862B (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588273B (en) * | 2015-09-30 | 2018-10-09 | 青岛海信日立空调系统有限公司 | A kind of aperture control method, indoor unit, outdoor unit and the air-conditioning of electric expansion valve |
| CN105402853B (en) * | 2015-12-07 | 2018-09-04 | Tcl空调器(中山)有限公司 | The control method and device of electric expansion valve |
| CN105423668B (en) * | 2015-12-09 | 2018-12-14 | 三菱重工海尔(青岛)空调机有限公司 | The control method of electric expansion valve |
| CN105423497B (en) * | 2015-12-18 | 2018-09-04 | Tcl空调器(中山)有限公司 | The control method and device of electric expansion valve |
| CN106016596B (en) * | 2016-05-23 | 2019-07-12 | Tcl空调器(中山)有限公司 | The control method and air conditioner of air conditioner electronic expansion valve |
| CN106019941A (en) * | 2016-06-20 | 2016-10-12 | 珠海格力电器股份有限公司 | Electronic expansion valve model coefficient determination method and device |
| CN106610091B (en) * | 2016-12-13 | 2019-03-01 | 青岛海尔空调器有限总公司 | Air-conditioning expansion valve control method and control device based on the degree of superheat |
| CN107676922A (en) * | 2017-10-31 | 2018-02-09 | 广东美的暖通设备有限公司 | The control method and air conditioner of air conditioner |
| CN109595740A (en) * | 2018-12-18 | 2019-04-09 | 珠海格力电器股份有限公司 | Air conditioning control method, air conditioning control device and air-conditioning |
| CN109883011B (en) * | 2018-12-24 | 2021-02-19 | 珠海格力电器股份有限公司 | Refrigerant adjusting method and device and air conditioning system |
| CN111483286B (en) * | 2019-01-25 | 2022-10-18 | 宇通客车股份有限公司 | Method and device for calculating opening degree of regulating valve of vehicle air conditioning system |
| CN109861623B (en) * | 2019-02-28 | 2021-02-02 | 宁波奥克斯电气股份有限公司 | Control method and device for preventing motor overload protection and air conditioner |
| CN111271814B (en) * | 2019-07-22 | 2021-08-31 | 宁波奥克斯电气股份有限公司 | Refrigerant flow control method and device and air conditioner |
| CN113007858A (en) * | 2019-12-18 | 2021-06-22 | 青岛海尔空调电子有限公司 | Method for controlling opening of electronic expansion valve of air conditioning unit |
| CN111043737A (en) * | 2019-12-23 | 2020-04-21 | 青岛海尔空调器有限总公司 | Method and device for controlling expansion valve and air conditioner |
| CN110986333B (en) * | 2019-12-26 | 2021-12-21 | 广东美的制冷设备有限公司 | Control method and device of air conditioner, air conditioner and electronic equipment |
| CN112524765B (en) * | 2020-12-08 | 2022-10-28 | 青岛海尔空调器有限总公司 | Expansion valve control method and device for air conditioner, electronic equipment and storage medium |
| CN112556129B (en) * | 2020-12-11 | 2022-09-06 | 青岛海尔空调器有限总公司 | Method and device for controlling electronic expansion valve of air conditioner and air conditioner |
| CN112710071B (en) * | 2020-12-28 | 2022-07-26 | 宁波奥克斯电气股份有限公司 | Method and device for controlling adjusting speed of electronic expansion valve and multi-split air conditioning system |
| CN112944756B (en) * | 2021-02-10 | 2022-03-29 | 珠海格力电器股份有限公司 | Compressor air suction dryness optimizing control method and device and air conditioner |
| CN113983643B (en) * | 2021-11-05 | 2023-08-01 | 海信（广东）空调有限公司 | Control method of air conditioner |
| CN114543328B (en) * | 2022-01-17 | 2023-11-21 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and storage medium |
| CN115218363B (en) * | 2022-05-31 | 2023-02-10 | 宁波奥克斯电气股份有限公司 | Air conditioner comfort control method and device and central air conditioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87103719A (en) * | 1986-05-21 | 1987-12-02 | 三菱电机株式会社 | Air conditioner |
| CN101495824A (en) * | 2006-08-04 | 2009-07-29 | 株式会社大宇电子 | Method for controlling electronic expansion valve of air conditioner |
| CN102147174A (en) * | 2011-03-24 | 2011-08-10 | 中国扬子集团滁州扬子空调器有限公司 | Method for controlling electronic expansion valve of variable-frequency air conditioner |
| CN102419041A (en) * | 2011-12-13 | 2012-04-18 | Tcl空调器(中山)有限公司 | Throttle opening degree control method for varied-frequency air-conditioner |
| 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 |
| CN103486689A (en) * | 2013-09-11 | 2014-01-01 | 广东美的制冷设备有限公司 | Air conditioner control method and device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10141744A (en) * | 1996-11-12 | 1998-05-29 | Fujitsu General Ltd | Control of air conditioner |
| JP3890870B2 (en) * | 2000-09-08 | 2007-03-07 | 株式会社日立製作所 | Air conditioner |
| JP4211432B2 (en) * | 2003-02-27 | 2009-01-21 | 三菱電機株式会社 | Air conditioner refrigerant relay unit |
-
2015
- 2015-02-03 CN CN201510055997.5A patent/CN104633862B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87103719A (en) * | 1986-05-21 | 1987-12-02 | 三菱电机株式会社 | Air conditioner |
| CN101495824A (en) * | 2006-08-04 | 2009-07-29 | 株式会社大宇电子 | Method for controlling electronic expansion valve of air conditioner |
| CN102147174A (en) * | 2011-03-24 | 2011-08-10 | 中国扬子集团滁州扬子空调器有限公司 | Method for controlling electronic expansion valve of variable-frequency air conditioner |
| CN102419041A (en) * | 2011-12-13 | 2012-04-18 | Tcl空调器(中山)有限公司 | Throttle opening degree control method for varied-frequency air-conditioner |
| 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 |
| CN103486689A (en) * | 2013-09-11 | 2014-01-01 | 广东美的制冷设备有限公司 | Air conditioner control method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104633862A (en) | 2015-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104633862B (en) | The control method of electric expansion valve during a kind of refrigerating of convertible frequency air conditioner operation | |
| CN108375175B (en) | Air conditioner system control method and device | |
| CN111692736B (en) | Control method of electronic expansion valve and air conditioning system | |
| CN103277876B (en) | The control method of the electric expansion valve in air-conditioning system | |
| EP2532992B1 (en) | Multi-type air conditioner and control method therefor | |
| CN110715466A (en) | Multi-connected air conditioning system and control method thereof | |
| CN109425069B (en) | Control method for electronic expansion valve during heating | |
| CN105091204A (en) | Control method of multi-split system | |
| CN107560085B (en) | Minimum operation frequency control method and control device for air conditioner compressor | |
| CN109405379B (en) | Control method for refrigeration electronic expansion valve | |
| CN104654529A (en) | Control method of electronic expansion valve during heating operation of variable frequency air conditioner | |
| CN105509387A (en) | Air-cooled heat pump unit and openness control method of electronic expansion valve therein and air conditioner | |
| EP3411642B1 (en) | A method for controlling a fan of a vapour compression system in accordance with a variable temperature setpoint | |
| CN109855256B (en) | Air conditioning system evaporation temperature control method and device and air conditioning system | |
| CN107631436B (en) | Control method and system of multi-connected air conditioner under refrigeration working condition | |
| CN104006445A (en) | Multi-linkage air conditioner and control method thereof | |
| EP3492837B1 (en) | Refrigeration cycle device | |
| CN106440592B (en) | A kind of adjusting method of air conditioner electronic expansion valve, system and air-conditioning | |
| CN104913459A (en) | Cooling air condition coolant flux real-time control method and apparatus thereof | |
| CN104792072A (en) | Air conditioning set and refrigerant flow control method thereof | |
| CN113847699B (en) | Control method of air conditioner and air conditioner with control method | |
| EP3199889B1 (en) | Air conditioner | |
| CN106196782A (en) | Source pump and control method thereof | |
| CN106286246A (en) | A kind of control method of compressor assembly | |
| CN106642563B (en) | Control method, control device and the air-conditioning of air-conditioning expansion valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |