CN104833056A - Control method and control system for outdoor fans of air conditioner - Google Patents
Control method and control system for outdoor fans of air conditioner Download PDFInfo
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- CN104833056A CN104833056A CN201510237605.7A CN201510237605A CN104833056A CN 104833056 A CN104833056 A CN 104833056A CN 201510237605 A CN201510237605 A CN 201510237605A CN 104833056 A CN104833056 A CN 104833056A
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- outdoor
- heat exchanger
- outdoor fan
- outdoor heat
- air
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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
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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
- F24F11/70—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
- F24F2140/00—Control inputs relating to system states
- F24F2140/40—Damper positions, e.g. open or closed
Abstract
The invention provides a control method and a control system for outdoor fans of an air conditioner. The air conditioner comprises a plurality of outdoor heat exchangers and a plurality of outdoor fans; each outdoor fan is used for carrying out heat radiation on the corresponding outdoor heat exchanger. The control method for the outdoor fans comprises the following steps: detecting outdoor ambient temperature and an operating load of an indoor unit of the air conditioner, wherein if the outdoor ambient temperature is smaller than or equal to a preset temperature value and the operating load of the indoor unit is smaller than or equal to a preset load, controlling any one of the outdoor heat exchangers to operate, and controlling the rest outdoor heat exchangers to stop operating, in addition, controlling the outdoor fan which corresponds to the operating outdoor heat exchanger to stop operating, and controlling the rest outdoor fans in the plurality of outdoor fans to operate. According to the technical scheme of the invention, the problem that the pressure ratio of a compressor is insufficient when the air conditioner operates at a low temperature refrigeration mode is solved, and the operating stability of the air conditioner system can be favorably improved.
Description
Technical field
The present invention relates to air-conditioner technical field, in particular to a kind of control method of the outdoor fan for air-conditioner and a kind of controlling party system of the outdoor fan for air-conditioner.
Background technology
At present, traditionally the use major part of air-conditioner is all set to run heating mode under running refrigerating pattern and low temperature environment under hot environment, but for some specific demands, air-conditioner then needs running refrigerating pattern under cryogenic.And under air-conditioner operates in cryogenic refrigeration pattern, and when operating load is less, the pressure at expulsion of compressor can be caused less than normal, produce the problem of compressor pressure ratio deficiency, if longtime running may cause compressor oil starvation, affect the stability that air-conditioner system runs.
Therefore, air-conditioner how can be avoided when cryogenic refrigeration runs, and there is the technical problem that the problem of pressure ratio deficiency becomes urgently to be resolved hurrily in compressor.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.
For this reason, one object of the present invention is the control method proposing a kind of outdoor fan for air-conditioner, can solve air-conditioner compressor when cryogenic refrigeration runs and occur the problem of pressure ratio deficiency, is conducive to the stability improving air-conditioner system operation.
Another object of the present invention is the control system proposing a kind of outdoor fan for air-conditioner.
For achieving the above object, embodiment according to a first aspect of the invention, propose a kind of control method of the outdoor fan for air-conditioner, described air-conditioner comprises multiple outdoor heat exchanger and multiple outdoor fan, each outdoor fan in described multiple outdoor fan is used for dispelling the heat to a corresponding described outdoor heat exchanger, the control method of described outdoor fan, comprising: the operating load detecting the indoor set of outdoor environment temperature and described air-conditioner; If described outdoor environment temperature is less than or equal to predetermined temperature value, and the operating load of described indoor set is less than or equal to predetermined load, the arbitrary outdoor heat exchanger then controlled in described multiple outdoor heat exchanger carries out work, and control other outdoor heat exchanger and quit work, and the control outdoor fan corresponding with described arbitrary outdoor heat exchanger quits work, and other outdoor fan controlled in described multiple outdoor fan carries out work.
According to an embodiment of the invention for the control method of the outdoor fan of air-conditioner, due to when air-conditioner runs at low ambient temperatures in a chiller mode and operating load is less, the heat transfer effect of outdoor unit heat exchanger is better, cause the high-pressure side pressure of compressor on the low side, easily cause the problem of compressor inner pressure ratio deficiency, simultaneously, if the rotating speed of outdoor fan is larger, the heat transfer effect of then corresponding with it outdoor heat exchanger is better, therefore by detecting the operating load of the indoor set of outdoor environment temperature and air-conditioner, and be less than or equal to predetermined temperature value at outdoor environment temperature, and the operating load of indoor set is when being less than or equal to predetermined load, only carry out work by an outdoor heat exchanger, and other outdoor fans controlled except outdoor fan corresponding to this outdoor heat exchanger carry out work, make air-conditioner in cryogenic refrigeration operation and the operating load of indoor set is less time, the heat exchange of outside is realized by means of only an outdoor heat exchanger, multiple outdoor heat exchanger is avoided all to carry out work and cause the problem that compressor high-voltage end pressure is lower, and carry out work by controlling other outdoor fans, also the pressure of compressor high-voltage end can be improved to a certain extent.Visible, technique scheme of the present invention can avoid compressor to occur the problem of inner pressure ratio deficiency, improves the stability that air-conditioner system runs.
The control method of the outdoor fan for air-conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, the step that other outdoor fan controlled in described multiple outdoor fan carries out work specifically comprises: the outdoor fan controlling only adjacent with a described arbitrary outdoor heat exchanger outdoor heat exchanger corresponding carries out work.
According to an embodiment of the invention for the control method of the outdoor fan of air-conditioner, work is carried out by controlling only adjacent with an arbitrary outdoor heat exchanger outdoor fan that outdoor heat exchanger is corresponding, make it possible under the prerequisite of heat exchange demand meeting in running order outdoor heat exchanger, avoid the problem that the high-pressure side pressure of the compressor caused because outdoor heat exchanger heat transfer effect crosses is on the low side.
According to one embodiment of present invention, described air-conditioner comprises the first outdoor heat exchanger, the second outdoor heat exchanger and for the first outdoor fan of dispelling the heat to described first outdoor heat exchanger and the second outdoor fan for dispelling the heat to described second outdoor heat exchanger.
Wherein, preferably, the arbitrary outdoor heat exchanger controlled in described multiple outdoor heat exchanger carries out work, and control other outdoor heat exchanger and quit work, and the control outdoor fan corresponding with described arbitrary outdoor heat exchanger quits work, and the step that other outdoor fan controlled in described multiple outdoor fan carries out work specifically comprises: control described first outdoor heat exchanger and described second outdoor fan carries out work, and control described second outdoor heat exchanger and described first outdoor fan quits work; Or control described second outdoor heat exchanger and described first outdoor fan carries out work, and control described first outdoor heat exchanger and described second outdoor fan quits work.This embodiment is mainly for the control program of the air-conditioner with two outdoor heat exchangers when cryogenic refrigeration.
According to one embodiment of present invention, described air-conditioner is multi-gang air-conditioner device, the step then detecting the operating load of the indoor set of described air-conditioner specifically comprises: the number detecting the indoor set run in described multi-gang air-conditioner device, determines the operating load of the indoor set of described air-conditioner according to a number of the indoor set of described operation.
Embodiment according to a second aspect of the invention, also proposed a kind of control system of outdoor fan of air-conditioner, described air-conditioner comprises multiple outdoor heat exchanger and multiple outdoor fan, each outdoor fan in described multiple outdoor fan is used for dispelling the heat to a corresponding described outdoor heat exchanger, the control system of described outdoor fan, comprise: detecting unit, for detecting the operating load of the indoor set of outdoor environment temperature and described air-conditioner; Control unit, for being less than or equal to predetermined temperature value at described outdoor environment temperature, and the operating load of described indoor set is when being less than or equal to predetermined load, the arbitrary outdoor heat exchanger controlled in described multiple outdoor heat exchanger carries out work, and control other outdoor heat exchanger and quit work, and the control outdoor fan corresponding with described arbitrary outdoor heat exchanger quits work, and other outdoor fan controlled in described multiple outdoor fan carries out work.
According to an embodiment of the invention for the control system of the outdoor fan of air-conditioner, due to when air-conditioner runs at low ambient temperatures in a chiller mode and operating load is less, the heat transfer effect of outdoor unit heat exchanger is better, cause the high-pressure side pressure of compressor on the low side, easily cause the problem of compressor inner pressure ratio deficiency, simultaneously, if the rotating speed of outdoor fan is larger, the heat transfer effect of then corresponding with it outdoor heat exchanger is better, therefore by detecting the operating load of the indoor set of outdoor environment temperature and air-conditioner, and be less than or equal to predetermined temperature value at outdoor environment temperature, and the operating load of indoor set is when being less than or equal to predetermined load, only carry out work by an outdoor heat exchanger, and other outdoor fans controlled except outdoor fan corresponding to this outdoor heat exchanger carry out work, make air-conditioner in cryogenic refrigeration operation and the operating load of indoor set is less time, the heat exchange of outside is realized by means of only an outdoor heat exchanger, multiple outdoor heat exchanger is avoided all to carry out work and cause the problem that compressor high-voltage end pressure is lower, and carry out work by controlling other outdoor fans, also the pressure of compressor high-voltage end can be improved to a certain extent.Visible, technique scheme of the present invention can avoid compressor to occur the problem of inner pressure ratio deficiency, improves the stability that air-conditioner system runs.
The control system of the outdoor fan for air-conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, described control unit specifically for: the outdoor fan controlling only adjacent with a described arbitrary outdoor heat exchanger outdoor heat exchanger corresponding carries out work.
According to an embodiment of the invention for the control system of the outdoor fan of air-conditioner, work is carried out by controlling only adjacent with an arbitrary outdoor heat exchanger outdoor fan that outdoor heat exchanger is corresponding, make it possible under the prerequisite of heat exchange demand meeting in running order outdoor heat exchanger, avoid the problem that the high-pressure side pressure of the compressor caused because outdoor heat exchanger heat transfer effect crosses is on the low side.
According to one embodiment of present invention, described air-conditioner comprises the first outdoor heat exchanger, the second outdoor heat exchanger and for the first outdoor fan of dispelling the heat to described first outdoor heat exchanger and the second outdoor fan for dispelling the heat to described second outdoor heat exchanger.
Wherein, preferably, described control unit specifically for: control described first outdoor heat exchanger and described second outdoor fan carries out work, and control described second outdoor heat exchanger and described first outdoor fan quits work; Or control described second outdoor heat exchanger and described first outdoor fan carries out work, and control described first outdoor heat exchanger and described second outdoor fan quits work.This embodiment is mainly for the control program of the air-conditioner with two outdoor heat exchangers when cryogenic refrigeration.
According to one embodiment of present invention, described air-conditioner is multi-gang air-conditioner device, described detecting unit, specifically for the number detecting the indoor set run in described multi-gang air-conditioner device, determines the operating load of the indoor set of described air-conditioner according to a number of the indoor set of described operation.
Embodiment according to a third aspect of the present invention, also proposed a kind of air-conditioner, comprising: the control system of the outdoor fan for air-conditioner as described in above-mentioned any one embodiment.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 shows the schematic flow diagram of the control method of the outdoor fan for air-conditioner according to an embodiment of the invention;
Fig. 2 shows the schematic block diagram of the control system of the outdoor fan for air-conditioner according to an embodiment of the invention;
Fig. 3 shows the internal structure schematic diagram with the air-conditioner of two outdoor heat exchanger according to an embodiment of the invention.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the schematic flow diagram of the control method of the outdoor fan for air-conditioner according to an embodiment of the invention.
The air-conditioner that the present invention proposes comprises multiple outdoor heat exchanger and multiple outdoor fan, and each outdoor fan in described multiple outdoor fan is used for dispelling the heat to a corresponding described outdoor heat exchanger.As shown in Figure 1, the control method of the outdoor fan for air-conditioner according to an embodiment of the invention, comprising: step 102, detects the operating load of the indoor set of outdoor environment temperature and described air-conditioner; Step 104, if described outdoor environment temperature is less than or equal to predetermined temperature value, and the operating load of described indoor set is less than or equal to predetermined load, the arbitrary outdoor heat exchanger then controlled in described multiple outdoor heat exchanger carries out work, and control other outdoor heat exchanger and quit work, and the control outdoor fan corresponding with described arbitrary outdoor heat exchanger quits work, and other outdoor fan controlled in described multiple outdoor fan carries out work.
Due to when air-conditioner runs at low ambient temperatures in a chiller mode and operating load is less, the heat transfer effect of outdoor unit heat exchanger is better, causes the high-pressure side pressure of compressor on the low side, easily causes the problem of compressor inner pressure ratio deficiency, simultaneously, if the rotating speed of outdoor fan is larger, the heat transfer effect of then corresponding with it outdoor heat exchanger is better, therefore by detecting the operating load of the indoor set of outdoor environment temperature and air-conditioner, and be less than or equal to predetermined temperature value at outdoor environment temperature, and the operating load of indoor set is when being less than or equal to predetermined load, only carry out work by an outdoor heat exchanger, and other outdoor fans controlled except outdoor fan corresponding to this outdoor heat exchanger carry out work, make air-conditioner in cryogenic refrigeration operation and the operating load of indoor set is less time, the heat exchange of outside is realized by means of only an outdoor heat exchanger, multiple outdoor heat exchanger is avoided all to carry out work and cause the problem that compressor high-voltage end pressure is lower, and carry out work by controlling other outdoor fans, also the pressure of compressor high-voltage end can be improved to a certain extent.Visible, technique scheme of the present invention can avoid compressor to occur the problem of inner pressure ratio deficiency, improves the stability that air-conditioner system runs.
The control method of the outdoor fan for air-conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, the step that other outdoor fan controlled in described multiple outdoor fan carries out work specifically comprises: the outdoor fan controlling only adjacent with a described arbitrary outdoor heat exchanger outdoor heat exchanger corresponding carries out work.
Work is carried out by controlling only adjacent with an arbitrary outdoor heat exchanger outdoor fan that outdoor heat exchanger is corresponding, make it possible under the prerequisite of heat exchange demand meeting in running order outdoor heat exchanger, avoid the problem that the high-pressure side pressure of the compressor caused because outdoor heat exchanger heat transfer effect crosses is on the low side.
According to one embodiment of present invention, described air-conditioner comprises the first outdoor heat exchanger, the second outdoor heat exchanger and for the first outdoor fan of dispelling the heat to described first outdoor heat exchanger and the second outdoor fan for dispelling the heat to described second outdoor heat exchanger.
Wherein, preferably, the arbitrary outdoor heat exchanger controlled in described multiple outdoor heat exchanger carries out work, and control other outdoor heat exchanger and quit work, and the control outdoor fan corresponding with described arbitrary outdoor heat exchanger quits work, and the step that other outdoor fan controlled in described multiple outdoor fan carries out work specifically comprises: control described first outdoor heat exchanger and described second outdoor fan carries out work, and control described second outdoor heat exchanger and described first outdoor fan quits work; Or control described second outdoor heat exchanger and described first outdoor fan carries out work, and control described first outdoor heat exchanger and described second outdoor fan quits work.This embodiment is mainly for the control program of the air-conditioner with two outdoor heat exchangers when cryogenic refrigeration.
According to one embodiment of present invention, described air-conditioner is multi-gang air-conditioner device, the step then detecting the operating load of the indoor set of described air-conditioner specifically comprises: the number detecting the indoor set run in described multi-gang air-conditioner device, determines the operating load of the indoor set of described air-conditioner according to a number of the indoor set of described operation.
Fig. 2 shows the schematic block diagram of the control system of the outdoor fan for air-conditioner according to an embodiment of the invention.
The air-conditioner that the present invention proposes comprises multiple outdoor heat exchanger and multiple outdoor fan, and each outdoor fan in described multiple outdoor fan is used for dispelling the heat to a corresponding described outdoor heat exchanger.As shown in Figure 2, the control system 200 of the outdoor fan for air-conditioner according to an embodiment of the invention, comprising: detecting unit 202, for detecting the operating load of the indoor set of outdoor environment temperature and described air-conditioner; Control unit 204, for being less than or equal to predetermined temperature value at described outdoor environment temperature, and the operating load of described indoor set is when being less than or equal to predetermined load, the arbitrary outdoor heat exchanger controlled in described multiple outdoor heat exchanger carries out work, and control other outdoor heat exchanger and quit work, and the control outdoor fan corresponding with described arbitrary outdoor heat exchanger quits work, and other outdoor fan controlled in described multiple outdoor fan carries out work.
Due to when air-conditioner runs at low ambient temperatures in a chiller mode and operating load is less, the heat transfer effect of outdoor unit heat exchanger is better, causes the high-pressure side pressure of compressor on the low side, easily causes the problem of compressor inner pressure ratio deficiency, simultaneously, if the rotating speed of outdoor fan is larger, the heat transfer effect of then corresponding with it outdoor heat exchanger is better, therefore by detecting the operating load of the indoor set of outdoor environment temperature and air-conditioner, and be less than or equal to predetermined temperature value at outdoor environment temperature, and the operating load of indoor set is when being less than or equal to predetermined load, only carry out work by an outdoor heat exchanger, and other outdoor fans controlled except outdoor fan corresponding to this outdoor heat exchanger carry out work, make air-conditioner in cryogenic refrigeration operation and the operating load of indoor set is less time, the heat exchange of outside is realized by means of only an outdoor heat exchanger, multiple outdoor heat exchanger is avoided all to carry out work and cause the problem that compressor high-voltage end pressure is lower, and carry out work by controlling other outdoor fans, also the pressure of compressor high-voltage end can be improved to a certain extent.Visible, technique scheme of the present invention can avoid compressor to occur the problem of inner pressure ratio deficiency, improves the stability that air-conditioner system runs.
The control system 200 of the outdoor fan for air-conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, described control unit 204 specifically for: the outdoor fan controlling only adjacent with a described arbitrary outdoor heat exchanger outdoor heat exchanger corresponding carries out work.
Work is carried out by controlling only adjacent with an arbitrary outdoor heat exchanger outdoor fan that outdoor heat exchanger is corresponding, make it possible under the prerequisite of heat exchange demand meeting in running order outdoor heat exchanger, avoid the problem that the high-pressure side pressure of the compressor caused because outdoor heat exchanger heat transfer effect crosses is on the low side.
According to one embodiment of present invention, described air-conditioner comprises the first outdoor heat exchanger, the second outdoor heat exchanger and for the first outdoor fan of dispelling the heat to described first outdoor heat exchanger and the second outdoor fan for dispelling the heat to described second outdoor heat exchanger.
Wherein, preferably, described control unit 204 specifically for: control described first outdoor heat exchanger and described second outdoor fan carries out work, and control described second outdoor heat exchanger and described first outdoor fan quits work; Or control described second outdoor heat exchanger and described first outdoor fan carries out work, and control described first outdoor heat exchanger and described second outdoor fan quits work.This embodiment is mainly for the control program of the air-conditioner with two outdoor heat exchangers when cryogenic refrigeration.
According to one embodiment of present invention, described air-conditioner is multi-gang air-conditioner device, described detecting unit 202, specifically for the number detecting the indoor set run in described multi-gang air-conditioner device, determines the operating load of the indoor set of described air-conditioner according to a number of the indoor set of described operation.
The invention allows for a kind of air-conditioner, comprising: as shown in Figure 2 for the control system 200 of the outdoor fan of air-conditioner.
Fig. 3 shows the internal structure schematic diagram with the air-conditioner of two outdoor heat exchanger according to an embodiment of the invention.
As shown in Figure 3, the air-conditioner with two outdoor heat exchanger according to an embodiment of the invention, specifically comprise: the first compressor 1 and the second compressor 2, the gas outlet of described first compressor 1 is connected with the gas outlet of described second compressor 2, and being connected to the entrance of oil eliminator 3, the oil export of described oil eliminator 3 is connected to the gas returning port of described first compressor 1 and the gas returning port of the second compressor 2; First cross valve 4 and the second cross valve 5, the gas vent of described oil eliminator 3 is connected to the first end of described first cross valve 4 and the first end of described second cross valve 5 respectively, second end of described first cross valve 4 and the second end of described second cross valve 5 are connected to the first stop valve 6 respectively, 3rd end of described first cross valve 4 and the 3rd end of described second cross valve 5 are connected to the entrance of gas-liquid separator 7 respectively, and the outlet of described gas-liquid separator 7 is connected to the gas returning port of described first compressor 1 and the gas returning port of described second compressor 2; First outdoor heat exchanger 8 and the second outdoor heat exchanger 9,4th end of described first cross valve 4 is connected to the entrance of described first outdoor heat exchanger 8,4th end of described second cross valve 5 is connected to the entrance of described second outdoor heat exchanger 9, and the outlet of described first outdoor heat exchanger 8 and the outlet of described second outdoor heat exchanger 9 are connected to the second stop valve 11; The outlet of the indoor heat exchanger of air-conditioner and entrance are connected to described first stop valve 6 and described second stop valve 11 respectively.
According to one embodiment of present invention, also comprise: the first electric expansion valve 12, the outlet of described first outdoor heat exchanger 8 is connected to the second stop valve 11 by described first electric expansion valve 12.
According to one embodiment of present invention, also comprise: the second electric expansion valve 13, the outlet of described second outdoor heat exchanger 9 is connected to the second stop valve 11 by described second electric expansion valve 13.
According to one embodiment of present invention, also comprise: the first capillary 14, the first oil export of described oil eliminator 3 is connected to the gas returning port of described first compressor 1 by described first capillary 14; Second capillary 15, the first oil export of described oil eliminator 3 is connected to the gas returning port of described second compressor 2 by described second capillary 15.
According to one embodiment of present invention, also comprise: three capillary 16 and magnetic valve 17, the second oil export of described oil eliminator 3 is connected to the gas returning port of described first compressor 1 and the gas returning port of described second compressor 2 by described three capillary 16 and described magnetic valve 17 successively.
According to one embodiment of present invention, also comprise: the first check valve 18, the entrance of described first check valve 18 is connected to described first stop valve 6, and the outlet of described first check valve 18 is connected to the second end of described second cross valve 5.
According to one embodiment of present invention, also comprise: the first blower fan 21, be arranged on the position corresponding with the first outdoor heat exchanger 8; Second blower fan 22, is arranged on the position corresponding with the second outdoor heat exchanger 9.
Below in conjunction with Fig. 3, technical scheme of the present invention is described further.
In the present embodiment, air-conditioner is multi-gang air-conditioner device, and comprises two outdoor heat exchangers.The control method of the outdoor fan of this air-conditioner is specially: specified temp Ta and load D is set, when air-conditioner refrigerating operaton, if environment temperature T1≤Ta detected, and indoor set operating load A≤D, then judge that this system carries out the operation of cryogenic refrigeration Smaller load, and then control room external heat exchanger 8 is opened, control room external heat exchanger 9 is closed, and controls outdoor fan 21 and closes, and controls outdoor fan 22 and opens, thus the pressure at expulsion of compressor can be increased, ensure compressor pressure ratio.Certainly, when judging that air-conditioner system carries out the operation of cryogenic refrigeration Smaller load, can also close by control room external heat exchanger 8, control room external heat exchanger 9 is opened, and controls outdoor fan 21 and opens, and controls outdoor fan 22 and closes.
More than be described with reference to the accompanying drawings technical scheme of the present invention, the present invention proposes a kind of control program of the outdoor fan for air-conditioner newly, air-conditioner compressor when cryogenic refrigeration runs can be solved and occur the problem of pressure ratio deficiency, be conducive to the stability improving air-conditioner system operation.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the control method for the outdoor fan of air-conditioner, it is characterized in that, described air-conditioner comprises multiple outdoor heat exchanger and multiple outdoor fan, each outdoor fan in described multiple outdoor fan is used for dispelling the heat to a corresponding described outdoor heat exchanger, the control method of described outdoor fan, comprising:
Detect the operating load of the indoor set of outdoor environment temperature and described air-conditioner;
If described outdoor environment temperature is less than or equal to predetermined temperature value, and the operating load of described indoor set is less than or equal to predetermined load, the arbitrary outdoor heat exchanger then controlled in described multiple outdoor heat exchanger carries out work, and controls other outdoor heat exchanger and quit work, and
Control the outdoor fan corresponding with described arbitrary outdoor heat exchanger to quit work, and other outdoor fan controlled in described multiple outdoor fan carries out work.
2. the control method of the outdoor fan for air-conditioner according to claim 1, is characterized in that, the step that other outdoor fan controlled in described multiple outdoor fan carries out work specifically comprises:
The outdoor fan controlling only adjacent with a described arbitrary outdoor heat exchanger outdoor heat exchanger corresponding carries out work.
3. the control method of the outdoor fan for air-conditioner according to claim 1, it is characterized in that, described air-conditioner comprises the first outdoor heat exchanger, the second outdoor heat exchanger and for the first outdoor fan of dispelling the heat to described first outdoor heat exchanger and the second outdoor fan for dispelling the heat to described second outdoor heat exchanger.
4. the control method of the outdoor fan for air-conditioner according to claim 3, it is characterized in that, the arbitrary outdoor heat exchanger controlled in described multiple outdoor heat exchanger carries out work, and control other outdoor heat exchanger and quit work, and the control outdoor fan corresponding with described arbitrary outdoor heat exchanger quits work, and the step that other outdoor fan controlled in described multiple outdoor fan carries out work specifically comprises:
Control described first outdoor heat exchanger and described second outdoor fan carries out work, and control described second outdoor heat exchanger and described first outdoor fan quits work; Or
Control described second outdoor heat exchanger and described first outdoor fan carries out work, and control described first outdoor heat exchanger and described second outdoor fan quits work.
5. the control method of the outdoor fan for air-conditioner according to any one of claim 1 to 4, is characterized in that, described air-conditioner is multi-gang air-conditioner device, then the step detecting the operating load of the indoor set of described air-conditioner specifically comprises:
Detect a number of the indoor set run in described multi-gang air-conditioner device, determine the operating load of the indoor set of described air-conditioner according to a number of the indoor set of described operation.
6. the control system for the outdoor fan of air-conditioner, it is characterized in that, described air-conditioner comprises multiple outdoor heat exchanger and multiple outdoor fan, each outdoor fan in described multiple outdoor fan is used for dispelling the heat to a corresponding described outdoor heat exchanger, the control system of described outdoor fan, comprising:
Detecting unit, for detecting the operating load of the indoor set of outdoor environment temperature and described air-conditioner;
Control unit, for being less than or equal to predetermined temperature value at described outdoor environment temperature, and the operating load of described indoor set is when being less than or equal to predetermined load, the arbitrary outdoor heat exchanger controlled in described multiple outdoor heat exchanger carries out work, and control other outdoor heat exchanger and quit work, and the control outdoor fan corresponding with described arbitrary outdoor heat exchanger quits work, and other outdoor fan controlled in described multiple outdoor fan carries out work.
7. the control system of the outdoor fan for air-conditioner according to claim 6, is characterized in that, described control unit specifically for:
The outdoor fan controlling only adjacent with a described arbitrary outdoor heat exchanger outdoor heat exchanger corresponding carries out work.
8. the control system of the outdoor fan for air-conditioner according to claim 6, it is characterized in that, described air-conditioner comprises the first outdoor heat exchanger, the second outdoor heat exchanger and for the first outdoor fan of dispelling the heat to described first outdoor heat exchanger and the second outdoor fan for dispelling the heat to described second outdoor heat exchanger.
9. the control system of the outdoor fan for air-conditioner according to claim 8, is characterized in that, described control unit specifically for:
Control described first outdoor heat exchanger and described second outdoor fan carries out work, and control described second outdoor heat exchanger and described first outdoor fan quits work; Or
Control described second outdoor heat exchanger and described first outdoor fan carries out work, and control described first outdoor heat exchanger and described second outdoor fan quits work.
10. the control system of the outdoor fan for air-conditioner according to any one of claim 6 to 9, is characterized in that, described air-conditioner is multi-gang air-conditioner device, described detecting unit specifically for:
Detect a number of the indoor set run in described multi-gang air-conditioner device, determine the operating load of the indoor set of described air-conditioner according to a number of the indoor set of described operation.
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| CN201510237605.7A CN104833056B (en) | 2015-05-11 | 2015-05-11 | Control method and control system for the outdoor fan of air conditioner |
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| CN201510237605.7A CN104833056B (en) | 2015-05-11 | 2015-05-11 | Control method and control system for the outdoor fan of air conditioner |
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| CN105650819A (en) * | 2016-02-01 | 2016-06-08 | 青岛海尔空调电子有限公司 | Control method for high temperature refrigeration of multi-split air conditioner |
| CN106765943A (en) * | 2016-12-16 | 2017-05-31 | 广东美的暖通设备有限公司 | The control method of outer machine blower fan, control device and constant speed Air-Cooled Heat Pump Unit |
| CN107101298A (en) * | 2017-04-25 | 2017-08-29 | 广东美的暖通设备有限公司 | The windscreen control method for correcting and device of multiple on-line system and its outdoor fan |
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| CN112594884A (en) * | 2020-12-10 | 2021-04-02 | 珠海格力电器股份有限公司 | Air conditioning unit and condenser fan control method and device thereof and storage medium |
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| CN106765943B (en) * | 2016-12-16 | 2019-08-16 | 广东美的暖通设备有限公司 | Control method, control device and the constant speed Air-Cooled Heat Pump Unit of outer machine blower |
| CN106765943A (en) * | 2016-12-16 | 2017-05-31 | 广东美的暖通设备有限公司 | The control method of outer machine blower fan, control device and constant speed Air-Cooled Heat Pump Unit |
| CN107120784B (en) * | 2017-04-07 | 2019-12-03 | 广东美的暖通设备有限公司 | Air-conditioning system and its control method of outdoor fan, device |
| CN107120784A (en) * | 2017-04-07 | 2017-09-01 | 广东美的暖通设备有限公司 | Air-conditioning system and its control method of outdoor fan, device |
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| CN107101298A (en) * | 2017-04-25 | 2017-08-29 | 广东美的暖通设备有限公司 | The windscreen control method for correcting and device of multiple on-line system and its outdoor fan |
| CN107166634B (en) * | 2017-04-25 | 2020-03-31 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
| CN107101298B (en) * | 2017-04-25 | 2019-12-03 | 广东美的暖通设备有限公司 | The windscreen control method for correcting and device of multi-line system and its outdoor fan |
| CN109595850A (en) * | 2019-01-08 | 2019-04-09 | 广东美的暖通设备有限公司 | Control method and air-conditioning system |
| CN110030757A (en) * | 2019-03-26 | 2019-07-19 | 青岛海尔空调电子有限公司 | Multi-gang air-conditioner and its control method |
| CN110454938A (en) * | 2019-08-05 | 2019-11-15 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN111473497A (en) * | 2020-04-29 | 2020-07-31 | 广东美的暖通设备有限公司 | Air conditioning system, refrigeration auxiliary device thereof and control method |
| CN111473497B (en) * | 2020-04-29 | 2021-12-31 | 广东美的暖通设备有限公司 | Air conditioning system, refrigeration auxiliary device thereof and control method |
| CN113686000A (en) * | 2020-05-19 | 2021-11-23 | 广东美的暖通设备有限公司 | Control method of air conditioner, air conditioner and computer storage medium |
| CN113686000B (en) * | 2020-05-19 | 2022-08-30 | 广东美的暖通设备有限公司 | Control method of air conditioner, air conditioner and computer storage medium |
| CN112594884A (en) * | 2020-12-10 | 2021-04-02 | 珠海格力电器股份有限公司 | Air conditioning unit and condenser fan control method and device thereof and storage medium |
| CN112594884B (en) * | 2020-12-10 | 2022-02-18 | 珠海格力电器股份有限公司 | Air conditioning unit and condenser fan control method and device thereof and storage medium |
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