CN103411292B - A kind of control method of low temperature refrigeration of air conditioner - Google Patents
A kind of control method of low temperature refrigeration of air conditioner Download PDFInfo
- Publication number
- CN103411292B CN103411292B CN201310390746.3A CN201310390746A CN103411292B CN 103411292 B CN103411292 B CN 103411292B CN 201310390746 A CN201310390746 A CN 201310390746A CN 103411292 B CN103411292 B CN 103411292B
- Authority
- CN
- China
- Prior art keywords
- output voltage
- control method
- adjustable range
- air conditioner
- low temperature
- 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
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a kind of control method of low temperature refrigeration of air conditioner, comprise step: the middle portion temperature T3 1) measuring outer machine condenser; 2) T3 and first preset value T1, T3 and the second preset value T2 is compared respectively, wherein, T1 & gt; T2; 3) as T3 & gt; During T1, raise the output voltage U of outer motor, to increase the rotating speed of outer blower fan; As T3 & lt; During T2, reduce U, to reduce the rotating speed of outer blower fan.Low temperature refrigeration of air conditioner control method of the present invention regulates according to the output voltage U of the external motor of middle portion temperature T3 of condenser, to realize the adjustment of external rotation speed of fan, and then is stabilized in by T3 in the scope of [T2, T1].Because T3 can reflect air-conditioning system operating pressure preferably, so stable T3 within the specific limits can ensure the operating pressure of condenser, thus control system operating pressure better; So, present invention achieves and ensure system stable operation when low temperature refrigeration of air conditioner, and then decrease the start-stop time of compressor, improve the comfortableness in room.
Description
Technical field
The present invention relates to air conditioner technical field, more particularly, relate to a kind of control method of low temperature refrigeration of air conditioner.
Background technology
In western countries and area, the places such as a lot of exclusive restaurant and bakery, to the air pleasant degree of indoor and purity requirements very high.In the winter time, because indoor open heating installation, add that indoor have the caloric value of toaster and restaurant kitchen large, indoor temperature easily raises.In addition, this exclusive restaurant and bakery can not window to lower the temperature.Therefore, the air-conditioning of mounting strap cryogenic refrigeration function is needed to carry out cooling process to room air.But for common air-conditioning, the outdoor temperature scope of its refrigerating operaton is 21-43 DEG C, the requirement of reliability service refrigeration under this kind of low temperature environment cannot be met.
In addition, when freezing under low temperature environment, it is very serious that condensing pressure can reduce, and also can be declined by the refrigerant pressure of restricting element, the refrigerant pressure so in evaporimeter also can decline accordingly, and evaporating temperature can reduce; The temperature if evaporating temperature is below the freezing point, the condensate water so evaporimeter produced will be freezed, and causes evaporator develops ice, and refrigeration declines.And, under this operating mode, because evaporating temperature is extremely low, easily cause compressor band liquid to run, infringement compressor.
The method that existing air-conditioning realizes cryogenic refrigeration is, in outdoor increase cryogenic refrigeration control module, this module detects outdoor machine of air-conditioner condensator outlet temperature, outer motor output voltage is regulated according to this temperature value, to control the rotating speed of outer blower fan, and then reduce the heat radiation of outer machine, avoid evaporating temperature too low, reach the object of cryogenic refrigeration.
But, because above-mentioned cryogenic refrigeration module is when regulating and controlling low temperature refrigeration of air conditioner, output voltage according to the external motor of the outlet temperature of outdoor machine of air-conditioner condenser regulates, the pressure oscillation of such condenser is larger, be difficult to ensure system stable operation, and then causing compressor easily frequent switching on and shutting down, fluctuations in indoor temperature is large, and comfortableness is poor.
Meanwhile, because system running pressure is unstable, band liquid easily occurs and runs, system reliability is poor.
In addition, under different outdoor environment temperatures, the output voltage range of outer blower fan is identical, then rotational speed regulation scope is identical, and easily cause the frequent adjustment of outer rotation speed of fan, in adjustment process, system easily produces concussion, have impact on system stable operation.
In sum, how realizing ensureing system stable operation when low temperature refrigeration of air conditioner, to reduce the start-stop time of compressor, improve the comfortableness in room, is current those skilled in the art technical problems urgently to be resolved hurrily.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of control method of low temperature refrigeration of air conditioner, to realize ensureing system stable operation when low temperature refrigeration of air conditioner, and then reduce the start-stop time of compressor, improve the comfortableness in room.
In order to achieve the above object, the invention provides following technical scheme:
A control method for low temperature refrigeration of air conditioner, comprises step:
1) the middle portion temperature T3 of outer machine condenser is measured;
2) described middle portion temperature T3 and the first preset value T1, described middle portion temperature T3 and the second preset value T2 are compared respectively, wherein, T1>T2;
3) as T3>T1, the output voltage U of outer motor is raised, to increase the rotating speed of outer blower fan; As T3<T2, reduce described output voltage U, to reduce the rotating speed of described outer blower fan.
Preferably, in above-mentioned control method, before described step 3), also comprise step:
Measure outdoor environment temperature T4, when T4 >=30 DEG C, the output voltage U of described outer motor is 220V; As T4<30 DEG C, limit the adjustable range of described output voltage U.
Preferably, in above-mentioned control method, as T4<-10 DEG C, the adjustable range of described output voltage U is 70V-110V; As-10 DEG C≤T4<0 DEG C, the adjustable range of described output voltage U is 70V-120V; As 0 DEG C≤T4<5 DEG C, the adjustable range of described output voltage U is 70V-130V; As 5 DEG C≤T4<10 DEG C, the adjustable range of described output voltage U is 80V-140V; As 10 DEG C≤T4<15 DEG C, the adjustable range of described output voltage U is 80V-150V; As 15 DEG C≤T4<20 DEG C, the adjustable range of described output voltage U is 90V-160V; As 20 DEG C≤T4<25 DEG C, the adjustable range of described output voltage U is 90V-180V; As 25 DEG C≤T4<30 DEG C, the adjustable range of described output voltage U is 100V-190V.
Preferably, in above-mentioned control method, described step 2) be specially:
Every preset time period, compare T3 and T1 and T3 and T2, described preset time period is 2S.
Preferably, in above-mentioned control method, in described step 3), as T3<T2, U reduces with the speed of 2V/ time.
Preferably, in above-mentioned control method, in described step 3), as T3>T1, judge that T3 rises or declines; When T3 rises, U raises with the speed of 10V/ time; When T3 declines, U raises with the speed of 1V/ time.
Preferably, in above-mentioned control method, as T2-t2≤T3<T2 and T1<T3≤T1+t1, the amplitude of accommodation of U is 2V/ time; As T3<T2-t2 and T3>T1+t1, the amplitude of accommodation of U is 10V/ time.
Preferably, in above-mentioned control method, t1 and t2 is 2 DEG C.
Preferably, in above-mentioned control method, T1-T2=5 DEG C.
Preferably, in above-mentioned control method, T1 is 45 DEG C, and T2 is 40 DEG C.
As can be seen from above-mentioned technical scheme, the control method of low temperature refrigeration of air conditioner provided by the invention comprises step: the middle portion temperature T3 1) measuring outer machine condenser; 2) middle portion temperature T3 and the first preset value T1, middle portion temperature T3 and the second preset value T2 are compared respectively, wherein, T1>T2; 3) as T3>T1, the output voltage U of outer motor is raised, to increase the rotating speed of outer blower fan; As T3<T2, reduce output voltage U, to reduce the rotating speed of outer blower fan.
Low temperature refrigeration of air conditioner control method of the present invention regulates according to the output voltage U of the external motor of middle portion temperature T3 of condenser, to realize the adjustment of external rotation speed of fan, and then is stabilized in the scope of [T2, T1] by the middle portion temperature T3 of condenser.Because condenser middle portion temperature T3 can reflect air-conditioning system operating pressure preferably, so stable middle portion temperature T3 within the specific limits can ensure the operating pressure of condenser, thus control system operating pressure better; So, present invention achieves and ensure system stable operation when low temperature refrigeration of air conditioner, and then decrease the start-stop time of compressor, improve the comfortableness in room.
Meanwhile, because above-mentioned low temperature refrigeration of air conditioner control method can control system operating pressure well, run so band liquid can be reduced, improve the reliability of system.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the control method of the low temperature refrigeration of air conditioner that the embodiment of the present invention provides.
Detailed description of the invention
Embodiments provide a kind of control method of low temperature refrigeration of air conditioner, achieve and ensure system stable operation when low temperature refrigeration of air conditioner, and then decrease the start-stop time of compressor, improve the comfortableness in room.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to accompanying drawing 1, the control method of the low temperature refrigeration of air conditioner that the embodiment of the present invention provides, comprises step:
The middle portion temperature T3 of S1, the outer machine condenser of measurement:
Condenser middle portion temperature T3 refers to the temperature in the middle part of condenser, and namely the coil pipe middle portion temperature of condenser, concrete, and the present embodiment adopts temperature sensor to measure T3;
S2, middle portion temperature T3 and the first preset value T1, middle portion temperature T3 and the second preset value T2 to be compared respectively, wherein, T1>T2:
T1 is the maximum preset value of condenser middle portion temperature, and T2 is the minimum preset value of condenser middle portion temperature;
S3, as T3>T1, raise the output voltage U of outer motor, to increase the rotating speed of outer blower fan; As T3<T2, reduce output voltage U, to reduce the rotating speed of outer blower fan.
The low temperature refrigeration of air conditioner control method of the embodiment of the present invention regulates according to the output voltage U of the external motor of middle portion temperature T3 of condenser, to realize the adjustment of external rotation speed of fan, and then the middle portion temperature T3 of condenser is stabilized in the scope of [T2, T1].Because condenser middle portion temperature T3 can reflect air-conditioning system operating pressure preferably, so stable middle portion temperature T3 within the specific limits can ensure the operating pressure of condenser, thus control system operating pressure better; So the present embodiment achieves and ensures system stable operation when low temperature refrigeration of air conditioner, and then decreases the start-stop time of compressor, improves the comfortableness in room.
Meanwhile, because the low temperature refrigeration of air conditioner control method of the present embodiment can control system operating pressure well, run so band liquid can be reduced, improve the reliability of system.
In preferred technical scheme, before step S3, also comprise step: measure outdoor environment temperature T4, when T4 >=30 DEG C, the output voltage U of outer motor is 220V; As T4<30 DEG C, the adjustable range of restriction output voltage U.Concrete, temperature signal, by temperature sensor measurement T4, is then sent to controller by the present embodiment, is limited the adjustable range [Umin, Umax] of output voltage U by controller.
As T4<30 DEG C, the control method of the present embodiment can limit the adjustable range of output voltage U, and T4 is lower, and Umax is lower, same, and Umin is also lower, and then limits the rotational speed regulation scope of outer blower fan.So, when outdoor environment temperature is lower, the value of the output voltage U of outer motor reduces, and then reduce the rotating speed of outer blower fan, outer blower fan is regulated in the less range of speeds, the upper and lower bound of rotating speed all reduces, and the system reduced due to the excessive generation of outer blower fan rotational speed regulation amplitude is shaken; Meanwhile, avoid the condensing pressure transition when T4 is lower to reduce, thus ensure the pressure of cold-producing medium, reduce the situation that evaporimeter occurs to freeze, and then ensure refrigeration.
Further, in the control method that above-described embodiment provides, as T4<-10 DEG C, the adjustable range of output voltage U is 70V-110V; As-10 DEG C≤T4<0 DEG C, the adjustable range of output voltage U is 70V-120V; As 0 DEG C≤T4<5 DEG C, the adjustable range of output voltage U is 70V-130V; As 5 DEG C≤T4<10 DEG C, the adjustable range of output voltage U is 80V-140V; As 10 DEG C≤T4<15 DEG C, the adjustable range of output voltage U is 80V-150V; As 15 DEG C≤T4<20 DEG C, the adjustable range of output voltage U is 90V-160V; As 20 DEG C≤T4<25 DEG C, the adjustable range of output voltage U is 90V-180V; As 25 DEG C≤T4<30 DEG C, the adjustable range of output voltage U is 100V-190V.Above-mentioned numerical value is the concrete adjustable range of one of the output voltage U of outer motor, according to different demands, can also be set to other voltage range, meanwhile, also can in T4 >=32 DEG C or other temperature time, make the output voltage U of outer motor be 220V; The present embodiment does not do concrete restriction to this.
In order to optimize technique scheme further, above-mentioned steps S2 is preferably: every preset time period, compare T3 and T1 and T3 and T2, preset time period is 2S.So, every 2S, just once compare, and then carry out Primary regulation to U, namely the output voltage regulating frequency of outer motor is 1 time/2S, avoids the too fast system of adjustment and easily produces concussion; Regulate too slow system easily to occur again the problem that high voltage protective is shut down, and then reduce the regulating frequency of outer rotation speed of fan, decrease system concussion, ensure system stable operation.Above-mentioned preset time period can also be 1.5S, 3S equal time, should select the suitable time period according to reality.
In order to reduce the concussion that system produces further, in the step S3 of above-mentioned control method, as T3<T2, U reduces with the speed of 2V/ time.Now, when T3<T2, the output voltage of outer motor often regulates and once reduces 2V, avoids the amplitude of accommodation too large.Certainly, U underspeed can also for 2.5V/ time or 3V/ inferior, the present invention does not do concrete restriction to this.
In the step S3 that above-described embodiment provides, as T3>T1, also comprise: judge that T3 rises or declines; When T3 rises, U raises with the speed of 10V/ time; When T3 declines, U raises with the speed of 1V/ time.Raise U when T3 rises with larger speed like this, reduce the amplitude of accommodation when T3 declines, avoid frequent rising and reduction U, thus accelerate T3 is stabilized in [T2, T1] scope in speed, reduce regulating time, make system reach steady operational status as early as possible.It will be understood by those skilled in the art that, as T3>T1, also can not carry out T3 is the judgement of rising or declining, regulate with 2V/ time or other speed always, [T2 is stabilized in reach same T3 the most at last, T1] scope in effect, introduce no longer one by one at this.
In a kind of preferred embodiment of the present invention, low temperature refrigeration of air conditioner control method also comprises: as T2-t2≤T3<T2 and T1<T3≤T1+t1, and the amplitude of accommodation of U is 2V/ time; As T3<T2-t2 and T3>T1+t1, the amplitude of accommodation of U is 10V/ time.The present embodiment considers the hysteresis quality of temperature detection, when the middle portion temperature T3 of condenser is at preset range [T2, T1] near, namely when interval [T2-t2, T2], [T1, T1+t1] are interior, start to reduce the amplitude of accommodation, by 10V/ time (also can for 8V/ time, 10V/ is inferior) be reduced to 2V/ time (also can for 1V/ time, 3V/ is inferior), avoid the rotating speed frequently regulating outer blower fan, thus the concussion of system generation during reduction adjustment.
In the control method that above-described embodiment provides, t1 and t2 is all preferably 2 DEG C.That is, when T3 is when interval [T2-2 DEG C, T2], [T1, T1+2 DEG C] are interior, starts to reduce the amplitude of accommodation, be reduced to 2V/ time by 10V/ time.Certainly, t1 and t2 can also get other different values, and if t1 is 3 DEG C, t2 is 2.5 DEG C etc.
In order to optimize technique scheme further, in the present embodiment, T1-T2=5 DEG C.Like this, the difference of T1 and T2 is 5 DEG C, avoids the too little T3 of causing of difference to be difficult to be stabilized in preset range, and then causes the outer rotation speed of fan of frequent adjustment, and system produces concussion, the situation that systematic parameter cannot be stable; Avoid the object not reaching accurately control T3 because difference is too large simultaneously.Above-mentioned difference can also be 4 DEG C or 6 DEG C etc., and the present invention is not limited to above-mentioned numerical value.
Concrete, in above-described embodiment, T1 is preferably 45 DEG C, and T2 is preferably 40 DEG C.Certainly, can also select other numerical value according to different running environment, if T1 is 46 DEG C, T2 is 41 DEG C etc.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a control method for low temperature refrigeration of air conditioner, is characterized in that, comprises step:
1) the middle portion temperature T3 of outer machine condenser is measured;
2) described middle portion temperature T3 and the first preset value T1, described middle portion temperature T3 and the second preset value T2 are compared respectively, wherein, T1>T2;
3) as T3>T1, the output voltage U of outer motor is raised, to increase the rotating speed of outer blower fan; As T3<T2, reduce described output voltage U, to reduce the rotating speed of described outer blower fan;
Wherein, as T2-t2≤T3<T2 and T1<T3≤T1+t1, the amplitude of accommodation of U is 2V/ time; As T3<T2-t2 and T3>T1+t1, the amplitude of accommodation of U is 10V/ time.
2. control method according to claim 1, is characterized in that, described step 3) also comprise step before:
Measure outdoor environment temperature T4, when T4 >=30 DEG C, the output voltage U of described outer motor is 220V; As T4<30 DEG C, limit the adjustable range of described output voltage U.
3. control method according to claim 2, is characterized in that,
As T4<-10 DEG C, the adjustable range of described output voltage U is 70V-110V;
As-10 DEG C≤T4<0 DEG C, the adjustable range of described output voltage U is 70V-120V;
As 0 DEG C≤T4<5 DEG C, the adjustable range of described output voltage U is 70V-130V;
As 5 DEG C≤T4<10 DEG C, the adjustable range of described output voltage U is 80V-140V;
As 10 DEG C≤T4<15 DEG C, the adjustable range of described output voltage U is 80V-150V;
As 15 DEG C≤T4<20 DEG C, the adjustable range of described output voltage U is 90V-160V;
As 20 DEG C≤T4<25 DEG C, the adjustable range of described output voltage U is 90V-180V;
As 25 DEG C≤T4<30 DEG C, the adjustable range of described output voltage U is 100V-190V.
4. control method according to claim 1, is characterized in that, described step 2) be specially:
Every preset time period, compare T3 and T1 and T3 and T2, described preset time period is 2S.
5. control method according to claim 1, is characterized in that, t1 and t2 is 2 DEG C.
6. the control method according to any one of claim 1-5, is characterized in that, T1-T2=5 DEG C.
7. control method according to claim 6, is characterized in that, T1 is 45 DEG C, and T2 is 40 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310390746.3A CN103411292B (en) | 2013-08-30 | 2013-08-30 | A kind of control method of low temperature refrigeration of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310390746.3A CN103411292B (en) | 2013-08-30 | 2013-08-30 | A kind of control method of low temperature refrigeration of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103411292A CN103411292A (en) | 2013-11-27 |
| CN103411292B true CN103411292B (en) | 2016-04-06 |
Family
ID=49604321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310390746.3A Active CN103411292B (en) | 2013-08-30 | 2013-08-30 | A kind of control method of low temperature refrigeration of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103411292B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089380A (en) * | 2014-07-31 | 2014-10-08 | 广东志高空调有限公司 | Ultralow-temperature air conditioner refrigeration method and device |
| CN105588260A (en) * | 2014-12-26 | 2016-05-18 | 海信（山东）空调有限公司 | Method and device for regulating rotating speed of outdoor fan |
| CN104613601B (en) * | 2015-01-29 | 2017-08-15 | 广东美的制冷设备有限公司 | The control method and device of outdoor fan in detachable air conditioner |
| CN105066325B (en) * | 2015-07-15 | 2018-05-22 | 广东美的暖通设备有限公司 | A kind of VRF Air Conditioning System control system and method |
| CN107152758A (en) * | 2017-05-22 | 2017-09-12 | 广东美的制冷设备有限公司 | Air conditioner anti-freeze protects control method and device |
| CN107388490B (en) * | 2017-07-12 | 2021-05-28 | 青岛海尔空调器有限总公司 | Air conditioner operation control method |
| CN107560001B (en) * | 2017-08-23 | 2019-08-16 | 宁波奥克斯电气股份有限公司 | Low temperature refrigerating air conditioner and its control method |
| CN109059184B (en) * | 2018-06-27 | 2021-01-26 | 奥克斯空调股份有限公司 | Temperature protection control method and air conditioner |
| EP3929500B1 (en) | 2019-03-25 | 2023-05-17 | GD Midea Air-Conditioning Equipment Co., Ltd. | Air conditioner control method and device, and air conditioner |
| CN109945401B (en) * | 2019-03-25 | 2020-08-25 | 广东美的制冷设备有限公司 | Control method and device of air conditioner and air conditioner |
| CN111023393A (en) * | 2019-11-15 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Control method and system of outdoor fan and air conditioner |
| CN114234406A (en) * | 2021-12-22 | 2022-03-25 | 四川长虹空调有限公司 | Air conditioner refrigeration control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002277024A (en) * | 2001-03-19 | 2002-09-25 | Fujitsu General Ltd | Method for controlling air conditioner |
| KR20060078451A (en) * | 2004-12-31 | 2006-07-05 | 위니아만도 주식회사 | Method for controlling fan of air-conditioner out door unit |
| CN101650064A (en) * | 2008-08-14 | 2010-02-17 | 海尔集团公司 | Low-temperature refrigeration air conditioner and wind speed control method thereof |
| CN101893308A (en) * | 2010-07-08 | 2010-11-24 | 宁波奥克斯电气有限公司 | Method for controlling outdoor fan of air-conditioner |
| WO2011148856A1 (en) * | 2010-05-24 | 2011-12-01 | ダイキン工業株式会社 | Method for controlling fan for heat source heat exchanger, and air conditioning device |
| CN202792404U (en) * | 2012-09-06 | 2013-03-13 | 广东美的电器股份有限公司 | Air conditioner and outdoor unit thereof |
| CN103175285A (en) * | 2013-03-26 | 2013-06-26 | 广东美的制冷设备有限公司 | Control circuit and control method of air-conditioner outdoor draught fan and air-conditioner |
-
2013
- 2013-08-30 CN CN201310390746.3A patent/CN103411292B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002277024A (en) * | 2001-03-19 | 2002-09-25 | Fujitsu General Ltd | Method for controlling air conditioner |
| KR20060078451A (en) * | 2004-12-31 | 2006-07-05 | 위니아만도 주식회사 | Method for controlling fan of air-conditioner out door unit |
| CN101650064A (en) * | 2008-08-14 | 2010-02-17 | 海尔集团公司 | Low-temperature refrigeration air conditioner and wind speed control method thereof |
| WO2011148856A1 (en) * | 2010-05-24 | 2011-12-01 | ダイキン工業株式会社 | Method for controlling fan for heat source heat exchanger, and air conditioning device |
| CN101893308A (en) * | 2010-07-08 | 2010-11-24 | 宁波奥克斯电气有限公司 | Method for controlling outdoor fan of air-conditioner |
| CN202792404U (en) * | 2012-09-06 | 2013-03-13 | 广东美的电器股份有限公司 | Air conditioner and outdoor unit thereof |
| CN103175285A (en) * | 2013-03-26 | 2013-06-26 | 广东美的制冷设备有限公司 | Control circuit and control method of air-conditioner outdoor draught fan and air-conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103411292A (en) | 2013-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103411292B (en) | A kind of control method of low temperature refrigeration of air conditioner | |
| CN103185387B (en) | Air-conditioner and leaving air temp control method thereof | |
| CN110671777B (en) | Control method and device of air conditioner and air conditioner | |
| US11092151B2 (en) | System and method for controlling a system that includes fixed speed and variable speed compressors | |
| US8813511B2 (en) | Control system for operating condenser fans | |
| CN103363622B (en) | A kind of air-conditioner and air-conditioner Poewr control method with power gear | |
| EP2889545A1 (en) | Energy-saving control method and device for inverter air conditioner | |
| KR102150312B1 (en) | Air conditioner and method for control of air conditioner | |
| CN204313390U (en) | A kind of low temperature refrigeration of air conditioner system | |
| CN104266305A (en) | Variable-frequency air conditioner control device and method and variable-frequency air conditioner | |
| WO2014153848A1 (en) | Control circuit of air conditioning outdoor fan, control method, and air conditioning | |
| CN104515254A (en) | Air conditioning compressor frequency control method | |
| CN104613593A (en) | Air conditioner and electric heating control method thereof | |
| CN103940058A (en) | Air conditioner, and control method and device thereof | |
| CN105066353A (en) | Air speed control method for variable frequency air conditioner and air conditioner | |
| CN109237703B (en) | Control method for multi-split air conditioning system | |
| CN105091227B (en) | A kind of wind speed control method and air conditioner of convertible frequency air-conditioner | |
| CN201093668Y (en) | System for controlling air conditioner outdoor fan rotational speed | |
| CN104729193A (en) | Method and device for controlling fan in air-cooled refrigerator to work at steady speed | |
| CN110608476A (en) | Control method, device and equipment of compressor and water multi-connected air conditioning system | |
| CA2892866A1 (en) | Variable speed outdoor fan control | |
| US10941951B2 (en) | Systems and methods for temperature and humidity control | |
| US20140012423A1 (en) | Energy saving controlling method and device of inverter air-conditioner | |
| CN105674505A (en) | Control method for refrigerating of air conditioner | |
| CN106705364B (en) | The control method and air conditioner of outdoor fan under air conditioner cryogenic refrigeration operating condition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528200 No. 1 compiled by the villagers' group of helangsha, Shengli village, Lishui Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Guangdong Kaili HVAC Co.,Ltd. Address before: 528200 No. 1 compiled by the villagers' group of helangsha, Shengli village, Lishui Town, Nanhai District, Foshan City, Guangdong Province Patentee before: GUANGDONG CHIGO HEATING AND VENTILATION EQUIPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |