CN104833056B - Control method and control system for the outdoor fan of air conditioner - Google Patents

Control method and control system for the outdoor fan of air conditioner Download PDF

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Publication number
CN104833056B
CN104833056B CN201510237605.7A CN201510237605A CN104833056B CN 104833056 B CN104833056 B CN 104833056B CN 201510237605 A CN201510237605 A CN 201510237605A CN 104833056 B CN104833056 B CN 104833056B
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CN
China
Prior art keywords
outdoor
control
heat exchanger
air conditioner
outdoor heat
Prior art date
Application number
CN201510237605.7A
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Chinese (zh)
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CN104833056A (en
Inventor
程威
张光鹏
许永锋
马进
李华勇
Original Assignee
广东美的暖通设备有限公司
美的集团股份有限公司
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Priority to CN201510237605.7A priority Critical patent/CN104833056B/en
Publication of CN104833056A publication Critical patent/CN104833056A/en
Application granted granted Critical
Publication of CN104833056B publication Critical patent/CN104833056B/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00Control inputs relating to system states
    • F24F2140/40Damper positions, e.g. open or closed

Abstract

The invention provides a kind of control method and control system of the outdoor fan for air conditioner, the air conditioner includes multiple outdoor heat exchangers and multiple outdoor fans, each outdoor fan is used to radiate to a corresponding outdoor heat exchanger, the control method of the outdoor fan, including:Detect the operating load of the indoor set of outdoor environment temperature and the air conditioner;If the outdoor environment temperature is less than or equal to predetermined temperature value, and the operating load of the indoor set is less than or equal to predetermined load, any outdoor heat exchanger in the multiple outdoor heat exchanger is then controlled to be operated, and control other outdoor heat exchangers to be stopped, and control outdoor fan corresponding with any outdoor heat exchanger to be stopped, and control other outdoor fans in the multiple outdoor fan to be operated.Technical scheme can solve the problem that the problem of pressure ratio is not enough occurs in air conditioner compressor when cryogenic refrigeration is run, be conducive to improving the stability of air-conditioner system operation.

Description

Control method and control system for the outdoor fan of air conditioner
Technical field
The present invention relates to air conditioner technical field, in particular to a kind of control of the outdoor fan for air conditioner The control method, system of method and a kind of outdoor fan for air conditioner.
Background technology
At present, traditionally it is both configured under hot environment run refrigeration mode and low temperature using most of for air conditioner Heating mode is run under environment, but for some specific demands, air conditioner then needs to run refrigeration mode under cryogenic.And work as Air conditioner is operated under cryogenic refrigeration pattern, and operating load it is smaller when, the pressure at expulsion of compressor can be caused less than normal, produce The problem of compressor pressure ratio is not enough, if longtime running is likely to result in compressor oil starvation, the stabilization of influence air-conditioner system operation Property.
Therefore, air conditioner how is avoided when cryogenic refrigeration is run, and the problem of pressure ratio is not enough, which occurs, in compressor to be turned into Technical problem urgently to be resolved hurrily.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art or correlation technique.
Therefore, it is an object of the present invention to propose a kind of control method of the outdoor fan for air conditioner, energy Enough solve air conditioner compressor when cryogenic refrigeration is run and the problem of pressure ratio is not enough occur, be conducive to improving air-conditioner system operation Stability.
It is another object of the present invention to propose a kind of control system of the outdoor fan for air conditioner.
To achieve the above object, a kind of embodiment according to the first aspect of the invention, it is proposed that room for air conditioner The control method of outer blower fan, the air conditioner includes multiple outdoor heat exchangers and multiple outdoor fans, the multiple outdoor fan In each outdoor fan be used for a corresponding outdoor heat exchanger is radiated, the controlling party of the outdoor fan Method, including:Detect the operating load of the indoor set of outdoor environment temperature and the air conditioner;If the outdoor environment temperature is less than Or equal to predetermined temperature value, and the operating load of the indoor set is less than or equal to predetermined load, then controls the multiple outdoor Any outdoor heat exchanger in heat exchanger is operated, and controls other outdoor heat exchangers to be stopped, and control with it is described The corresponding outdoor fan of any outdoor heat exchanger is stopped, and controls other outdoor fans in the multiple outdoor fan to enter Row work.
It is used for the control method of the outdoor fan of air conditioner according to an embodiment of the invention, due to when air conditioner is in low temperature Operation and when operating load is smaller in a chiller mode under environment, the heat transfer effect of outdoor unit heat exchanger preferably, causes compressor High pressure end pressure is relatively low, easily causes the problem of compressor inner pressure ratio is not enough;Meanwhile, if the rotating speed of outdoor fan is bigger, therewith The heat transfer effect of corresponding outdoor heat exchanger is better, therefore passes through the operation for the indoor set for detecting outdoor environment temperature and air conditioner Load, and it is less than or equal to predetermined temperature value in outdoor environment temperature, and the operating load of indoor set is less than or equal to predetermined negative During lotus, only it is operated by an outdoor heat exchanger, and controls other in addition to the corresponding outdoor fan of the outdoor heat exchanger Outdoor fan is operated so that air conditioner only passes through one when the operating load of cryogenic refrigeration operation and indoor set is smaller Outdoor heat exchanger realizes the heat exchange of outside, it is to avoid multiple outdoor heat exchangers are operated and cause compressor high-voltage end pressure Relatively low the problem of, and be operated by controlling other outdoor fans, compressor high-voltage end can be also improved to a certain extent Pressure.It can be seen that, above-mentioned technical proposal of the invention can avoid compressor from the problem of inner pressure ratio is not enough occur, improve air-conditioning The stability of device system operation.
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, control what other outdoor fans in the multiple outdoor fan were operated Step is specifically included:The corresponding outdoor fan of only adjacent with an any outdoor heat exchanger outdoor heat exchanger is controlled to carry out Work.
According to an embodiment of the invention be used for air conditioner outdoor fan control method, by control only with any room The adjacent corresponding outdoor fan of an outdoor heat exchanger of external heat exchanger is operated so that can meet in running order Outdoor heat exchanger heat exchange demand on the premise of, it is to avoid because outdoor heat exchanger heat transfer effect it is excessively good caused by compressor height The problem of pressure side pressure is relatively low.
According to one embodiment of present invention, the air conditioner include the first outdoor heat exchanger, the second outdoor heat exchanger, with And the first outdoor fan for being radiated to first outdoor heat exchanger and for entering to second outdoor heat exchanger Second outdoor fan of row radiating.
Wherein it is preferred to, control any outdoor heat exchanger in the multiple outdoor heat exchanger to be operated, and control it Its outdoor heat exchanger is stopped, and controls outdoor fan corresponding with any outdoor heat exchanger to be stopped, and controls The step of other outdoor fans in the multiple outdoor fan are operated is made to specifically include:Control first outdoor heat exchange Device and second outdoor fan are operated, and control second outdoor heat exchanger and first outdoor fan to stop work Make;Or control second outdoor heat exchanger and first outdoor fan to be operated, and control first outdoor heat exchange Device and second outdoor fan are stopped.The embodiment is primarily directed to the air conditioner with two outdoor heat exchangers low Control program during temperature refrigeration.
According to one embodiment of present invention, the air conditioner is multi-gang air-conditioner device, then detects the room of the air conditioner The step of operating load of interior machine, specifically includes:A number for the indoor set run in the multi-gang air-conditioner device is detected, according to institute State the operating load of the indoor set of a number determination air conditioner for the indoor set of operation.
A kind of embodiment according to the second aspect of the invention, it is also proposed that control system of the outdoor fan of air conditioner, Each outdoor fan that the air conditioner is included in multiple outdoor heat exchangers and multiple outdoor fans, the multiple outdoor fan is used Radiated in a corresponding outdoor heat exchanger, the control system of the outdoor fan, including:Detection unit, is used In detection outdoor environment temperature and the operating load of the indoor set of the air conditioner;Control unit, in the outdoor environment Temperature is less than or equal to predetermined temperature value, and the operating load of the indoor set, when being less than or equal to predetermined load, control is described Any outdoor heat exchanger in multiple outdoor heat exchangers is operated, and controls other outdoor heat exchangers to be stopped, and control System outdoor fan corresponding with any outdoor heat exchanger is stopped, and controls other rooms in the multiple outdoor fan Outer blower fan is operated.
It is used for the control system of the outdoor fan of air conditioner according to an embodiment of the invention, due to when air conditioner is in low temperature Operation and when operating load is smaller in a chiller mode under environment, the heat transfer effect of outdoor unit heat exchanger preferably, causes compressor High pressure end pressure is relatively low, easily causes the problem of compressor inner pressure ratio is not enough;Meanwhile, if the rotating speed of outdoor fan is bigger, therewith The heat transfer effect of corresponding outdoor heat exchanger is better, therefore passes through the operation for the indoor set for detecting outdoor environment temperature and air conditioner Load, and it is less than or equal to predetermined temperature value in outdoor environment temperature, and the operating load of indoor set is less than or equal to predetermined negative During lotus, only it is operated by an outdoor heat exchanger, and controls other in addition to the corresponding outdoor fan of the outdoor heat exchanger Outdoor fan is operated so that air conditioner only passes through one when the operating load of cryogenic refrigeration operation and indoor set is smaller Outdoor heat exchanger realizes the heat exchange of outside, it is to avoid multiple outdoor heat exchangers are operated and cause compressor high-voltage end pressure Relatively low the problem of, and be operated by controlling other outdoor fans, compressor high-voltage end can be also improved to a certain extent Pressure.It can be seen that, above-mentioned technical proposal of the invention can avoid compressor from the problem of inner pressure ratio is not enough occur, improve air-conditioning The stability of device system operation.
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:Control only with any outdoor heat exchange The adjacent corresponding outdoor fan of an outdoor heat exchanger of device is operated.
According to an embodiment of the invention be used for air conditioner outdoor fan control system, by control only with any room The adjacent corresponding outdoor fan of an outdoor heat exchanger of external heat exchanger is operated so that can meet in running order Outdoor heat exchanger heat exchange demand on the premise of, it is to avoid because outdoor heat exchanger heat transfer effect it is excessively good caused by compressor height The problem of pressure side pressure is relatively low.
According to one embodiment of present invention, the air conditioner include the first outdoor heat exchanger, the second outdoor heat exchanger, with And the first outdoor fan for being radiated to first outdoor heat exchanger and for entering to second outdoor heat exchanger Second outdoor fan of row radiating.
Wherein it is preferred to, described control unit specifically for:Control first outdoor heat exchanger and second outdoor Blower fan is operated, and controls second outdoor heat exchanger and first outdoor fan to be stopped;Or control described the Two outdoor heat exchangers and first outdoor fan are operated, and control first outdoor heat exchanger and second outdoor Blower fan is stopped.Controlling party of the embodiment primarily directed to the air conditioner with two outdoor heat exchangers in cryogenic refrigeration Case.
According to one embodiment of present invention, the air conditioner be multi-gang air-conditioner device, the detection unit specifically for: A number for the indoor set run in the multi-gang air-conditioner device is detected, the sky is determined according to a number for the indoor set of the operation Adjust the operating load of the indoor set of device.
A kind of embodiment according to a third aspect of the present invention, it is also proposed that air conditioner, including:Any one of as described above embodiment Described in the outdoor fan for air conditioner control system.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined Substantially and be readily appreciated that, wherein:
Fig. 1 shows the signal of the control method of the outdoor fan according to an embodiment of the invention for air conditioner Flow chart;
Fig. 2 shows the signal of the control system of the outdoor fan according to an embodiment of the invention for air conditioner Block diagram;
Fig. 3 shows that the internal structure of the air conditioner according to an embodiment of the invention with dual chamber external heat exchanger is shown It is intended to.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.
Fig. 1 shows the signal of the control method of the outdoor fan according to an embodiment of the invention for air conditioner Flow chart.
Air conditioner proposed by the present invention is included in multiple outdoor heat exchangers and multiple outdoor fans, the multiple outdoor fan Each outdoor fan be used for a corresponding outdoor heat exchanger is radiated.As shown in figure 1, according to the one of the present invention The control method of the outdoor fan for air conditioner of individual embodiment, including:Step 102, outdoor environment temperature is detected and described The operating load of the indoor set of air conditioner;Step 104, if the outdoor environment temperature is less than or equal to predetermined temperature value, and institute The operating load for stating indoor set is less than or equal to predetermined load, then controls any outdoor heat exchange in the multiple outdoor heat exchanger Device is operated, and controls other outdoor heat exchangers to be stopped, and controls room corresponding with any outdoor heat exchanger Outer blower fan is stopped, and controls other outdoor fans in the multiple outdoor fan to be operated.
Due to when air conditioner at low ambient temperatures in a chiller mode operation and operating load it is smaller when, outdoor unit heat exchanger Heat transfer effect preferably, causes the high pressure end pressure of compressor relatively low, easily causes the problem of compressor inner pressure ratio is not enough;Meanwhile, if The rotating speed of outdoor fan is bigger, then the heat transfer effect of corresponding outdoor heat exchanger is better, therefore by detecting outdoor environment The operating load of the indoor set of temperature and air conditioner, and it is less than or equal to predetermined temperature value, and indoor set in outdoor environment temperature Operating load be less than or equal to predetermined load when, be only operated by an outdoor heat exchanger, and control remove the outdoor heat exchange Other outdoor fans outside the corresponding outdoor fan of device are operated so that air conditioner is in cryogenic refrigeration operation and indoor set When operating load is smaller, the heat exchange of outside is only realized by an outdoor heat exchanger, it is to avoid multiple outdoor heat exchangers are carried out Work and cause the problem of compressor high-voltage end pressure is relatively low, and be operated by controlling other outdoor fans, also can be The pressure of compressor high-voltage end is improved to a certain extent.It can be seen that, above-mentioned technical proposal of the invention can avoid compressor from occurring The problem of inner pressure ratio is not enough, improves the stability of air-conditioner system operation.
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, control what other outdoor fans in the multiple outdoor fan were operated Step is specifically included:The corresponding outdoor fan of only adjacent with an any outdoor heat exchanger outdoor heat exchanger is controlled to carry out Work.
By controlling the corresponding outdoor fan of an outdoor heat exchanger only adjacent with any outdoor heat exchanger to be operated, Allow on the premise of the heat exchange demand of in running order outdoor heat exchanger is met, it is to avoid because of outdoor heat exchanger heat exchange The problem of high pressure end pressure of compressor is relatively low caused by effect is excessively good.
According to one embodiment of present invention, the air conditioner include the first outdoor heat exchanger, the second outdoor heat exchanger, with And the first outdoor fan for being radiated to first outdoor heat exchanger and for entering to second outdoor heat exchanger Second outdoor fan of row radiating.
Wherein it is preferred to, control any outdoor heat exchanger in the multiple outdoor heat exchanger to be operated, and control it Its outdoor heat exchanger is stopped, and controls outdoor fan corresponding with any outdoor heat exchanger to be stopped, and controls The step of other outdoor fans in the multiple outdoor fan are operated is made to specifically include:Control first outdoor heat exchange Device and second outdoor fan are operated, and control second outdoor heat exchanger and first outdoor fan to stop work Make;Or control second outdoor heat exchanger and first outdoor fan to be operated, and control first outdoor heat exchange Device and second outdoor fan are stopped.The embodiment is primarily directed to the air conditioner with two outdoor heat exchangers low Control program during temperature refrigeration.
According to one embodiment of present invention, the air conditioner is multi-gang air-conditioner device, then detects the room of the air conditioner The step of operating load of interior machine, specifically includes:A number for the indoor set run in the multi-gang air-conditioner device is detected, according to institute State the operating load of the indoor set of a number determination air conditioner for the indoor set of operation.
Fig. 2 shows the signal of the control system of the outdoor fan according to an embodiment of the invention for air conditioner Block diagram.
Air conditioner proposed by the present invention is included in multiple outdoor heat exchangers and multiple outdoor fans, the multiple outdoor fan Each outdoor fan be used for a corresponding outdoor heat exchanger is radiated.As shown in Fig. 2 according to the one of the present invention The control system 200 of the outdoor fan for air conditioner of individual embodiment, including:Detection unit 202, for detecting outdoor environment The operating load of the indoor set of temperature and the air conditioner;Control unit 204, for being less than or waiting in the outdoor environment temperature When the operating load of predetermined temperature value, and the indoor set is less than or equal to predetermined load, the multiple outdoor heat exchange is controlled Any outdoor heat exchanger in device is operated, and controls other outdoor heat exchangers to be stopped, and control with it is described any The corresponding outdoor fan of outdoor heat exchanger is stopped, and controls other outdoor fans in the multiple outdoor fan to carry out work Make.
Due to when air conditioner at low ambient temperatures in a chiller mode operation and operating load it is smaller when, outdoor unit heat exchanger Heat transfer effect preferably, causes the high pressure end pressure of compressor relatively low, easily causes the problem of compressor inner pressure ratio is not enough;Meanwhile, if The rotating speed of outdoor fan is bigger, then the heat transfer effect of corresponding outdoor heat exchanger is better, therefore by detecting outdoor environment The operating load of the indoor set of temperature and air conditioner, and it is less than or equal to predetermined temperature value, and indoor set in outdoor environment temperature Operating load be less than or equal to predetermined load when, be only operated by an outdoor heat exchanger, and control remove the outdoor heat exchange Other outdoor fans outside the corresponding outdoor fan of device are operated so that air conditioner is in cryogenic refrigeration operation and indoor set When operating load is smaller, the heat exchange of outside is only realized by an outdoor heat exchanger, it is to avoid multiple outdoor heat exchangers are carried out Work and cause the problem of compressor high-voltage end pressure is relatively low, and be operated by controlling other outdoor fans, also can be The pressure of compressor high-voltage end is improved to a certain extent.It can be seen that, above-mentioned technical proposal of the invention can avoid compressor from occurring The problem of inner pressure ratio is not enough, improves the stability of air-conditioner system operation.
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:Control is only changed with any outdoor The adjacent corresponding outdoor fan of an outdoor heat exchanger of hot device is operated.
By controlling the corresponding outdoor fan of an outdoor heat exchanger only adjacent with any outdoor heat exchanger to be operated, Allow on the premise of the heat exchange demand of in running order outdoor heat exchanger is met, it is to avoid because of outdoor heat exchanger heat exchange The problem of high pressure end pressure of compressor is relatively low caused by effect is excessively good.
According to one embodiment of present invention, the air conditioner include the first outdoor heat exchanger, the second outdoor heat exchanger, with And the first outdoor fan for being radiated to first outdoor heat exchanger and for entering to second outdoor heat exchanger Second outdoor fan of row radiating.
Wherein it is preferred to, described control unit 204 specifically for:Control first outdoor heat exchanger and described second Outdoor fan is operated, and controls second outdoor heat exchanger and first outdoor fan to be stopped;Or control institute State the second outdoor heat exchanger and first outdoor fan is operated, and control first outdoor heat exchanger and described second Outdoor fan is stopped.Control of the embodiment primarily directed to the air conditioner with two outdoor heat exchangers in cryogenic refrigeration Scheme processed.
According to one embodiment of present invention, the air conditioner is multi-gang air-conditioner device, and the detection unit 202 is specifically used In:A number for the indoor set run in the multi-gang air-conditioner device is detected, institute is determined according to a number for the indoor set of the operation State the operating load of the indoor set of air conditioner.
The invention also provides a kind of air conditioner, including:It is used for the control of the outdoor fan of air conditioner as shown in Figure 2 System 200.
Fig. 3 shows that the internal structure of the air conditioner according to an embodiment of the invention with dual chamber external heat exchanger is shown It is intended to.
As shown in figure 3, the air conditioner according to an embodiment of the invention with dual chamber external heat exchanger, is specifically included: First compressor 1 and the second compressor 2, the gas outlet of first compressor 1 and the gas outlet phase of second compressor 2 Connect, and be connected to the entrance of oil eliminator 3, the oil export of the oil eliminator 3 is connected to the gas returning port of first compressor 1 With the gas returning port of the second compressor 2;First four-way valve 4 and the second four-way valve 5, the gas vent of the oil eliminator 3 connect respectively It is connected to the first end of first four-way valve 4 and the first end of second four-way valve 5, the second end of first four-way valve 4 The first stop valve 6 is respectively connecting to the second end of second four-way valve 5, the 3rd end of first four-way valve 4 and described 3rd end of the second four-way valve 5 is respectively connecting to the entrance of gas-liquid separator 7, and the outlet of the gas-liquid separator 7 is connected to institute State the gas returning port of the first compressor 1 and the gas returning port of second compressor 2;First outdoor heat exchanger 8 and the second outdoor heat exchange Device 9, the 4th end of first four-way valve 4 is connected to the entrance of first outdoor heat exchanger 8, second four-way valve 5 4th end is connected to the entrance of second outdoor heat exchanger 9, the outlet of first outdoor heat exchanger 8 and second outdoor The outlet of heat exchanger 9 is connected to the second stop valve 11;The outlet of the indoor heat exchanger of air conditioner and entrance are respectively connecting to described First stop valve 6 and second stop valve 11.
According to one embodiment of present invention, in addition to:First electric expansion valve 12, first outdoor heat exchanger 8 Outlet is connected to the second stop valve 11 by first electric expansion valve 12.
According to one embodiment of present invention, in addition to:Second electric expansion valve 13, second outdoor heat exchanger 9 Outlet is connected to the second stop valve 11 by second electric expansion valve 13.
According to one embodiment of present invention, in addition to:First capillary 14, the first oil export of the oil eliminator 3 The gas returning port of first compressor 1 is connected to by first capillary 14;Second capillary 15, the oil eliminator 3 The first oil export the gas returning port of second compressor 2 is connected to by second capillary 15.
According to one embodiment of present invention, in addition to:Three capillary 16 and magnetic valve 17, the oil eliminator 3 Second oil export passes sequentially through the three capillary 16 and the magnetic valve 17 is connected to the gas returning port of first compressor 1 With the gas returning port of second compressor 2.
According to one embodiment of present invention, in addition to:First check valve 18, the entrance connection of first check valve 18 To first stop valve 6, the outlet of first check valve 18 is connected to the second end of second four-way valve 5.
According to one embodiment of present invention, in addition to:First blower fan 21, is arranged on corresponding with the first outdoor heat exchanger 8 Position;Second blower fan 22, is arranged on and the corresponding position of the second outdoor heat exchanger 9.
Technical scheme is described further below in conjunction with Fig. 3.
In the present embodiment, air conditioner is multi-gang air-conditioner device, and including two outdoor heat exchangers.To the room of the air conditioner The control method of outer blower fan is specially:Specified temp Ta and load D is set, when air conditioner refrigerating operaton, if detecting environment Temperature T1≤Ta, and indoor set operating load A≤D, then judge that the system carries out cryogenic refrigeration Smaller load operation, and then control room External heat exchanger 8 is opened, and control outdoor heat exchanger 9 is closed, and control outdoor fan 21 is closed, and control outdoor fan 22 is opened, so that The pressure at expulsion of compressor can be increased, it is ensured that compressor pressure ratio.Certainly, judging that it is small negative that air-conditioner system carries out cryogenic refrigeration When lotus runs, outdoor heat exchanger 8 can also be controlled to close, control outdoor heat exchanger 9 is opened, control outdoor fan 21 is opened, and is controlled Outdoor fan 22 processed is closed.
Technical scheme is described in detail above in association with accompanying drawing, and the present invention, which is proposed, a kind of new is used for air conditioner Outdoor fan control program, can solve the problem that the problem of pressure ratio is not enough occurs in air conditioner compressor when cryogenic refrigeration is run, Be conducive to improving the stability of air-conditioner system operation.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (10)

1. the control method of a kind of outdoor fan for air conditioner, it is characterised in that the air conditioner is changed including multiple outdoors Each outdoor fan in hot device and multiple outdoor fans, the multiple outdoor fan is used to change a corresponding outdoor Hot device is radiated, the control method of the outdoor fan, including:
Detect the operating load of the indoor set of outdoor environment temperature and the air conditioner;
If the outdoor environment temperature is less than or equal to predetermined temperature value, and the operating load of the indoor set is less than or equal in advance Constant load, then control any outdoor heat exchanger in the multiple outdoor heat exchanger to be operated, and control other outdoor heat exchanges Device is stopped, and
Control outdoor fan corresponding with any outdoor heat exchanger is stopped, and controls in the multiple outdoor fan Other outdoor fans are operated.
2. the control method of the outdoor fan according to claim 1 for air conditioner, it is characterised in that control is described more The step of other outdoor fans in individual outdoor fan are operated specifically includes:
The corresponding outdoor fan of an outdoor heat exchanger only adjacent with any outdoor heat exchanger is controlled to be operated.
3. the control method of the outdoor fan according to claim 1 for air conditioner, it is characterised in that the air conditioner Including the first outdoor heat exchanger, the second outdoor heat exchanger and for first outdoor heat exchanger is radiated first Outdoor fan and the second outdoor fan for being radiated to second outdoor heat exchanger.
4. the control method of the outdoor fan according to claim 3 for air conditioner, it is characterised in that control is described more Any outdoor heat exchanger in individual outdoor heat exchanger is operated, and controls other outdoor heat exchangers to be stopped, and control Outdoor fan corresponding with any outdoor heat exchanger is stopped, and controls other outdoors in the multiple outdoor fan The step of blower fan is operated specifically includes:
Control first outdoor heat exchanger and second outdoor fan to be operated, and control second outdoor heat exchanger It is stopped with first outdoor fan;Or
Control second outdoor heat exchanger and first outdoor fan to be operated, and control first outdoor heat exchanger It is stopped with second outdoor fan.
5. the control method of the outdoor fan according to any one of claim 1 to 4 for air conditioner, its feature exists Be multi-gang air-conditioner device in, the air conditioner, then detect the air conditioner indoor set operating load the step of specifically include:
A number for the indoor set run in the multi-gang air-conditioner device is detected, institute is determined according to a number for the indoor set of the operation State the operating load of the indoor set of air conditioner.
6. the control system of a kind of outdoor fan for air conditioner, it is characterised in that the air conditioner is changed including multiple outdoors Each outdoor fan in hot device and multiple outdoor fans, the multiple outdoor fan is used to change a corresponding outdoor Hot device is radiated, the control system of the outdoor fan, including:
Detection unit, the operating load of the indoor set for detecting outdoor environment temperature and the air conditioner;
Control unit, for being less than or equal to predetermined temperature value in the outdoor environment temperature, and the operation of the indoor set is born When lotus is less than or equal to predetermined load, any outdoor heat exchanger in the multiple outdoor heat exchanger is controlled to be operated, and control Make other outdoor heat exchangers to be stopped, and control outdoor fan corresponding with any outdoor heat exchanger to be stopped, And control other outdoor fans in the multiple outdoor fan to be operated.
7. the control system of the outdoor fan according to claim 6 for air conditioner, it is characterised in that the control list Member specifically for:
The corresponding outdoor fan of an outdoor heat exchanger only adjacent with any outdoor heat exchanger is controlled to be operated.
8. the control system of the outdoor fan according to claim 6 for air conditioner, it is characterised in that the air conditioner Including the first outdoor heat exchanger, the second outdoor heat exchanger and for first outdoor heat exchanger is radiated first Outdoor fan and the second outdoor fan for being radiated to second outdoor heat exchanger.
9. the control system of the outdoor fan according to claim 8 for air conditioner, it is characterised in that the control list Member specifically for:
Control first outdoor heat exchanger and second outdoor fan to be operated, and control second outdoor heat exchanger It is stopped with first outdoor fan;Or
Control second outdoor heat exchanger and first outdoor fan to be operated, and control first outdoor heat exchanger It is stopped with second outdoor fan.
10. the control system of the outdoor fan for air conditioner according to any one of claim 6 to 9, its feature exists In, the air conditioner be multi-gang air-conditioner device, the detection unit specifically for:
A number for the indoor set run in the multi-gang air-conditioner device is detected, institute is determined according to a number for the indoor set of the operation State the operating load of the indoor set of air conditioner.
CN201510237605.7A 2015-05-11 2015-05-11 Control method and control system for the outdoor fan of air conditioner CN104833056B (en)

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* Cited by examiner, † Cited by third party
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CN105650819B (en) * 2016-02-01 2019-11-15 青岛海尔空调电子有限公司 A kind of control method for multi-gang air-conditioner high-temperature refrigeration
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
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
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
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1693797A (en) * 2005-05-26 2005-11-09 广东科龙电器股份有限公司 Air conditioner capable of automatically regulating condensation load and its control method
JP2008039312A (en) * 2006-08-08 2008-02-21 Matsushita Electric Ind Co Ltd Multi-chamber type air conditioner
CN102679494A (en) * 2012-05-03 2012-09-19 宁波奥克斯电气有限公司 Control method of low temperature refrigeration of rooftop air conditioning unit
CN104180559A (en) * 2014-09-01 2014-12-03 广东志高暖通设备股份有限公司 Multi-unit system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1693797A (en) * 2005-05-26 2005-11-09 广东科龙电器股份有限公司 Air conditioner capable of automatically regulating condensation load and its control method
JP2008039312A (en) * 2006-08-08 2008-02-21 Matsushita Electric Ind Co Ltd Multi-chamber type air conditioner
CN102679494A (en) * 2012-05-03 2012-09-19 宁波奥克斯电气有限公司 Control method of low temperature refrigeration of rooftop air conditioning unit
CN104180559A (en) * 2014-09-01 2014-12-03 广东志高暖通设备股份有限公司 Multi-unit system

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