CN105465975A - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN105465975A CN105465975A CN201510940918.9A CN201510940918A CN105465975A CN 105465975 A CN105465975 A CN 105465975A CN 201510940918 A CN201510940918 A CN 201510940918A CN 105465975 A CN105465975 A CN 105465975A
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- magnetic valve
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- preset range
- air
- control method
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000003507 refrigerant Substances 0.000 claims abstract description 37
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims description 36
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000007710 freezing Methods 0.000 claims description 12
- 230000008014 freezing Effects 0.000 claims description 12
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000032683 aging Effects 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner and a control method of the air conditioner. The air conditioner comprises a compressor driving plate, a refrigerant cooling module, a first electromagnetic valve, a second electromagnetic valve and a controller; a liquid inlet at one side of the refrigerant cooling module is connected with the connecting pipeline through a first electromagnetic valve, and a liquid outlet at one side of the refrigerant cooling module is connected with the same section of connecting pipeline through a second electromagnetic valve; the controller controls the opening degrees of the first and second electromagnetic valves according to the temperature of the compressor driving plate to control the temperature of the compressor driving plate within a predetermined range. Through the technical scheme, the opening degrees of the first electromagnetic valve and the second electromagnetic valve can be controlled according to the temperature of the compressor driving plate, so that the quantity of the refrigerant entering the refrigerant cooling module is controlled, and the purpose of controlling the cooling temperature of the compressor driving plate is achieved.
Description
Technical field
The present invention relates to field of air conditioning, in particular to the control method of a kind of air-conditioner and air-conditioner.
Background technology
Current, multi-connected machine adopts refrigerant to carry out cooling compressor drive plate usually, and it is mainly cooled by liquid pipe.The operation principle of the method is, when after the condenser heat exchange of refrigerant at off-premises station, around giving the cooling of driven compressor plate in refrigerant refrigerating module, then refrigerant flows out and goes to liquid pipe.
Although technique scheme of the prior art can meet the demands substantially, following problem can be there is:
(1) crushing is large.Refrigerant goes out pipe to this pipeline section of refrigerant refrigerating module from condenser, because of step by step reduced of caliber, the crushing of unit is also and then increased.
(2) for the unit run under T3 worst hot case, prior art is not remarkable for the cooling effect of driven compressor plate.Especially, when interior machine driven by off-premises station low-frequency operation list, because the flow of refrigerant is few, be not enough to, to the cooling of driven compressor plate, unit report compressor IPM can be made to protect, compressor emergency shutdown.
(3) unit is for a long time when worst hot case runs, and each component aging of machine set compressor drive plate can be made to accelerate, and solder joint comes off.
(4) unit is for a long time when worst cold case runs, and electrical appliance kit can be made to have dew condensation phenomenon to occur.
Summary of the invention
There is provided in the embodiment of the present invention that a kind of structure is simple, cost is low, can carry out the air-conditioner of effective cooling and the control method of air-conditioner to driven compressor plate.
For achieving the above object, the embodiment of the present invention provides a kind of air-conditioner, comprises driven compressor plate, refrigerant refrigerating module, the first magnetic valve, the second magnetic valve and controller; The inlet of the side of refrigerant refrigerating module is connected with connecting line by the first magnetic valve, and the liquid outlet of the opposite side of refrigerant refrigerating module is connected with same section of connecting line by the second magnetic valve; Controller controls the aperture of the first magnetic valve and the second magnetic valve the temperature of driven compressor plate to be controlled in preset range according to the temperature of driven compressor plate.
As preferably, cooling controller also comprises cross valve, indoor heat exchanger, compressor, oil eliminator, outdoor heat exchanger, heats electric expansion valve and cooling electronic expansion valve; The first end of cross valve is connected by connecting line with between indoor heat exchanger; The output of compressor is connected with the second end of cross valve by oil eliminator; 3rd end of cross valve successively by outdoor heat exchanger, heat electric expansion valve, cooling electronic expansion valve, the side of refrigerant refrigerating module and indoor heat exchanger after be connected with the first end of cross valve.
Present invention also offers a kind of control method of air-conditioner, air-conditioner comprises driven compressor plate, refrigerant refrigerating module, the first magnetic valve, the second magnetic valve and controller, the inlet of the side of refrigerant refrigerating module is connected with connecting line by the first magnetic valve, the liquid outlet of the opposite side of refrigerant refrigerating module is connected with same section of connecting line by the second magnetic valve, and control method comprises: control the aperture of the first magnetic valve and the second magnetic valve according to the temperature of driven compressor plate the temperature of driven compressor plate to be controlled in preset range.
As preferably, when unit starting, the second magnetic valve is all opened, and the first magnetic valve is opened half.
As preferably, after first scheduled time after unit starting, detect the first Current Temperatures of driven compressor plate; The first difference between the design temperature calculating the first Current Temperatures and driven compressor plate; If the first difference is in preset range, then keep the aperture of the first magnetic valve constant.
As preferably, if the first difference is less than the lower limit of preset range when freezing or is less than the upper limit of preset range when heating, then the aperture of the first magnetic valve is increased the first regulated quantity.
As preferably, the aperture of the first magnetic valve is being increased the first regulated quantity and after second scheduled time, is detecting the second Current Temperatures of driven compressor plate; The second difference between the design temperature calculating the second Current Temperatures and driven compressor plate; If the second difference is positioned at preset range, then the aperture of the first magnetic valve remains unchanged.
As preferably, if the second difference is less than the lower limit of preset range when freezing or is less than the upper limit of preset range when heating, the aperture of the first magnetic valve is then continued to increase the second regulated quantity, so cyclically the aperture of the first magnetic valve is increased progressively the second regulated quantity successively, until the second difference is positioned at preset range.
As preferably, the first regulated quantity is 2 × | Y-X|, wherein, Y is design temperature, and X is the first Current Temperatures.
As preferably, the second regulated quantity is 2 × | Y-Xi|, wherein, Y is design temperature, and Xi is the second Current Temperatures.
As preferably, if the first difference is less than the upper limit of preset range when freezing or is less than the lower limit of preset range when heating, then the aperture of the first magnetic valve is reduced the 3rd regulated quantity.
As preferably, the aperture of the first magnetic valve is being reduced the 3rd regulated quantity and after the 3rd scheduled time, is detecting the 3rd Current Temperatures of driven compressor plate; Calculate the 3rd difference between the 3rd Current Temperatures and the design temperature of driven compressor plate; If the 3rd difference is positioned at preset range, then the aperture of the first magnetic valve remains unchanged.
As preferably, if the 3rd difference is less than the upper limit of preset range when freezing or is less than the lower limit of preset range when heating, the aperture of the first magnetic valve is then continued to reduce the 4th regulated quantity, the 4th regulated quantity of cyclically aperture of the first magnetic valve being successively decreased successively like this, until the 3rd difference is positioned at preset range.
As preferably, the 3rd regulated quantity is 2 × | Y-X|, wherein, Y is design temperature, and X is the first Current Temperatures.
As preferably, the 4th regulated quantity is 2 × | Y-Xj|, wherein, Y is design temperature, and Xj is the 3rd Current Temperatures.
Pass through technique scheme, the present invention can be controlled by the aperture of temperature to the first magnetic valve and the second magnetic valve according to driven compressor plate, thus the coolant quantity that control enters in refrigerant refrigerating module, to reach the object controlling driven compressor plate chilling temperature, driven compressor plate temperature is controlled near the preset range that predetermined temperature is upper and lower, avoid the problem causing system pressure loss because pipeline reduces, solve drive plate components and parts permanent operation under bad working environments and cause the problem that components and parts are aging rapidly, also solve drive plate under worst cold case and occur the problem of condensation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of air-conditioner when refrigerating operaton of the embodiment of the present invention;
Fig. 2 is the schematic diagram of air-conditioner when heating operation of the embodiment of the present invention;
Fig. 3 is the flow chart of the control method of the air-conditioner of the embodiment of the present invention.
Description of reference numerals: 1, cross valve; 2, indoor heat exchanger; 3, refrigerant refrigerating module; 4, the first magnetic valve; 5, the second magnetic valve; 6, compressor; 7, oil eliminator; 8, outdoor heat exchanger; 9, electric expansion valve is heated; 10, cooling electronic expansion valve; 11, gas-liquid separator; 12, the first check valve; 13, the second check valve.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Please refer to Fig. 1 and Fig. 2, the invention provides and a kind of air-conditioner is provided, comprise cross valve 1, indoor heat exchanger 2, driven compressor plate, refrigerant refrigerating module 3, first magnetic valve 4, second magnetic valve 5 and controller; The inlet of the side of refrigerant refrigerating module 3 is connected with connecting line by the first magnetic valve 4, the liquid outlet of the opposite side of refrigerant refrigerating module 3 is connected with same section of connecting line by the second magnetic valve 5, and the first end of cross valve 1 is also connected by this section of connecting line with between indoor heat exchanger 2; Controller controls the aperture of the first magnetic valve 4 and the second magnetic valve 5 the temperature of driven compressor plate to be controlled in preset range according to the temperature of driven compressor plate.Such as, described preset range can be ± 3 DEG C.
Like this, can be controlled by the aperture of temperature to the first magnetic valve 4 and the second magnetic valve 5 according to driven compressor plate, thus the coolant quantity that control enters in refrigerant refrigerating module 3, to reach the object controlling driven compressor plate chilling temperature, driven compressor plate temperature is controlled near the preset range that predetermined temperature is upper and lower, avoid the problem causing system pressure loss because pipeline reduces, solve drive plate components and parts permanent operation under bad working environments and cause the problem that components and parts are aging rapidly, also solve drive plate under worst cold case and occur the problem of condensation.
Preferably, cooling controller also comprises compressor 6, oil eliminator 7, outdoor heat exchanger 8, heats electric expansion valve 9 and cooling electronic expansion valve 10; The output of compressor 6 is connected with the second end of cross valve 1 by oil eliminator 7; 3rd end of cross valve 1 successively by outdoor heat exchanger 8, heat electric expansion valve 9, cooling electronic expansion valve 10, the side of refrigerant refrigerating module 3 and indoor heat exchanger 2 after be connected with the first end of cross valve 1.
Preferably, cooling controller also comprises gas-liquid separator 11, and the 4th end of cross valve 1 is connected with gas-liquid separator 11, and the input of compressor 6 is connected with gas-liquid separator 11.
Preferably, cooling controller also comprises and is in series arranged on the first check valve 12 between oil eliminator 7 with cross valve 1 and second check valve 13 in parallel with heating electric expansion valve 9.
Please refer to Fig. 1 to 3, present invention also offers a kind of control method of air-conditioner, this air-conditioner comprises driven compressor plate, refrigerant refrigerating module 3, first magnetic valve 4, second magnetic valve 5 and controller, the inlet of the side of refrigerant refrigerating module 3 is connected with connecting line by the first magnetic valve 4, the liquid outlet of the opposite side of refrigerant refrigerating module 3 is connected with same section of connecting line by the second magnetic valve 5, this control method comprises: control the aperture of the first magnetic valve 4 and the second magnetic valve 5 the temperature of driven compressor plate to be controlled in preset range according to the temperature of driven compressor plate.
Like this, can be controlled by the aperture of temperature to the first magnetic valve 4 and the second magnetic valve 5 according to driven compressor plate, thus the coolant quantity that control enters in refrigerant refrigerating module 3, to reach the object controlling driven compressor plate chilling temperature, driven compressor plate temperature is controlled near the preset range that predetermined temperature is upper and lower, avoid the problem causing system pressure loss because pipeline reduces, solve drive plate components and parts permanent operation under bad working environments and cause the problem that components and parts are aging rapidly, also solve drive plate under worst cold case and occur the problem of condensation.
Preferably, when unit starting, the second magnetic valve 5 is all opened, and the first magnetic valve 4 is opened half.Like this, please refer to Fig. 1 and Fig. 2, when refrigeration or heating operation, the second magnetic valve 5 is all opened, and the first magnetic valve 4 is opened half, and in system, other element can run by the mode that multi-connected machine of the prior art is the same.Preferably, the first magnetic valve 4 and the second magnetic valve 5 electric expansion valve that step number can be used to be ZPls.
Preferably, after first scheduled time after unit starting, detect the first Current Temperatures of driven compressor plate; The first difference between the design temperature calculating the first Current Temperatures and driven compressor plate; If the first difference is in preset range, then keep the aperture of the first magnetic valve 4 constant.Such as, first scheduled time can 3 minutes.Such as, after 3 minutes at motor-driven startup optimization, no matter freeze or heat, detecting that the first Current Temperatures is X, and during-3≤Y-X≤3, the aperture of the first magnetic valve 4 remains unchanged, wherein, Y is the design temperature of driven compressor plate.
Preferably, if the first difference is less than the lower limit of preset range when freezing or is less than the upper limit of preset range when heating, then the aperture of the first magnetic valve 4 is increased the first regulated quantity.Preferably, the first regulated quantity be 2 × | Y-X|, wherein, Y is design temperature, and X is the first Current Temperatures.Such as, when refrigerating operaton, if Y-X<-3, then the aperture of the first magnetic valve 4 be Z/2+2 × | Y-X|; When heating operation, if 3<Y-X, then the aperture of the first magnetic valve 4 be Z/2+2 × | Y-X|.
Preferably, the aperture of the first magnetic valve 4 is being increased the first regulated quantity and after second scheduled time, is detecting the second Current Temperatures of driven compressor plate; The second difference between the design temperature calculating the second Current Temperatures and driven compressor plate; If the second difference is positioned at preset range, then the aperture of the first magnetic valve 4 remains unchanged.Preferably, second scheduled time was 30 seconds.Preferably, the second regulated quantity is 2 × | Y-Xi|, wherein, Y is design temperature, and Xi is the second Current Temperatures, and i is the number of times detected.Such as, when refrigerating operaton, if-3≤Y-X1≤3, then the aperture of the first magnetic valve 4 remain Z/2+2 × | Y-X|; When heating operation, if-3≤Y-X1≤3, then the aperture of the first magnetic valve 4 remain Z/2+2 × | Y-X|.
Preferably, if the second difference is less than the lower limit of preset range when freezing or is less than the upper limit of preset range when heating, the aperture of the first magnetic valve 4 is then continued to increase the second regulated quantity, so cyclically the aperture of the first magnetic valve 4 is increased progressively the second regulated quantity successively, until the second difference is positioned at preset range.
Such as, when refrigerating operaton, if Y-X1<-3, then the aperture of the first magnetic valve 4 be Z/2+2 × | Y-X|+2 × | Y-X1|; Then, then carry out second time detected temperatures through second scheduled time (such as 30 seconds), if Y-X2<-3, then the aperture of the first magnetic valve 4 be Z/2+2 × | Y-X|+2 × | Y-X1|+2 × | Y-X2|; The like, namely detect that the temperature province Y-Xn of n-th time is whether between-3≤Y-Xn≤3 always, if not, so the aperture of the first magnetic valve 4 can increase progressively always for: Z/2+2 × | Y-X|+2 × | Y-X1|+2 × | Y-X2|+ ... + 2 × | Y-Xn-1|.
And for example, when heating operation, if 3<Y-X1, then the aperture of the first magnetic valve 4 be Z/2+2 × | Y-X|+2 × | Y-X1|; Then, then carry out second time detected temperatures through second scheduled time (such as 30 seconds), if 3<Y-X2, then the aperture of the first magnetic valve be Z/2+2 × | Y-X|+2 × | Y-X1|+2 × | Y-X2|; The like, n-th temperature province Y-Xn namely detected whether between-3≤Y-Xn≤3 always, if not, so the aperture of the first magnetic valve 4 can increase progressively always for: Z/2+2 × | Y-X|+2 × | Y-X1|+2 × | Y-X2|+ ... + 2 × | Y-Xn-1|.
Preferably, if the first difference is less than the upper limit of preset range when freezing or is less than the lower limit of preset range when heating, then the aperture of the first magnetic valve 4 is reduced the 3rd regulated quantity.Preferably, the 3rd regulated quantity be 2 × | Y-X|, wherein, Y is design temperature, and X is the first Current Temperatures.Such as, when refrigerating operaton, if during 3<Y-X, then the aperture of the first magnetic valve 4 be Z/2-2 × | Y-X|; When heating operation, if during Y-X<-3, then the aperture of the first magnetic valve 4 be Z/2-2 × | Y-X|.
Preferably, the aperture of the first magnetic valve 4 is being reduced the 3rd regulated quantity and after the 3rd scheduled time, is detecting the 3rd Current Temperatures of driven compressor plate; Calculate the 3rd difference between the 3rd Current Temperatures and the design temperature of driven compressor plate; If the 3rd difference is positioned at preset range, then the aperture of the first magnetic valve 4 remains unchanged.Preferably, the 3rd scheduled time was 30 seconds.Such as, when refrigerating operaton, if-3≤Y-X1≤3, then the aperture of the first magnetic valve 4 remain Z/2-2 × | Y-X|; When heating operation, if-3≤Y-X1≤3, then the aperture of the first magnetic valve 4 remain Z/2-2 × | Y-X|.
Preferably, if the 3rd difference is less than the upper limit of preset range when freezing or is less than the lower limit of preset range when heating, the aperture of the first magnetic valve 4 is then continued to reduce the 4th regulated quantity, the 4th regulated quantity of cyclically aperture of the first magnetic valve 4 being successively decreased successively like this, until the 3rd difference is positioned at preset range.Preferably, the 4th regulated quantity be 2 × | Y-Xj|, wherein, Y is design temperature, and Xj is the 3rd Current Temperatures.
Such as, when refrigerating operaton, if 3<Y-X1, then the aperture of the first magnetic valve 4 be Z/2-2 × | Y-X|-2 × | Y-X1|; Then, then carry out second time detected temperatures through second scheduled time (such as 30 seconds), if 3<Y-X2, then the aperture of the first magnetic valve 4 be Z/2-2 × | Y-X|-2 × | Y-X1|-2 × | Y-X2|; The like, n-th temperature Y-Xn namely detected whether between-3≤Y-Xn≤3, if not, so the aperture of the first magnetic valve 4 can be decremented to always always: Z/2-2 × | Y-X|-2 × | Y-X1|-2 × | Y-X2|-...-2 × | Y-Xn-1|.
And for example, when refrigerating operaton, if Y-X1<-3, then the aperture of the first magnetic valve 4 be Z/2-2 × | Y-X|-2 × | Y-X1|; Then, then carry out second time detected temperatures through second scheduled time (such as 30 seconds), if Y-X2<-3, then the aperture of the first magnetic valve 4 be Z/2-2 × | Y-X|-2 × | Y-X1|-2 × | Y-X2|; The like, n-th temperature province Y-Xn namely detected whether between-3≤Y-Xn≤3, if not, so the aperture of the first magnetic valve 4 can be decremented to always always: Z/2-2 × | Y-X|-2 × | Y-X1|-2 × | Y-X2|-...-2 × | Y-Xn-1|.
Certainly, be more than the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art, under the prerequisite not departing from its general principles, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (15)
1. an air-conditioner, is characterized in that, comprises driven compressor plate, refrigerant refrigerating module (3), the first magnetic valve (4), the second magnetic valve (5) and controller;
The inlet of the side of described refrigerant refrigerating module (3) is connected with connecting line by described first magnetic valve (4), and the liquid outlet of the opposite side of described refrigerant refrigerating module (3) is connected with same section of connecting line by described second magnetic valve (5);
Described controller controls the aperture of described first magnetic valve (4) and described second magnetic valve (5) the temperature of described driven compressor plate to be controlled in preset range according to the temperature of described driven compressor plate.
2. air-conditioner according to claim 1, it is characterized in that, described cooling controller also comprises cross valve (1), indoor heat exchanger (2), compressor (6), oil eliminator (7), outdoor heat exchanger (8), heats electric expansion valve (9) and cooling electronic expansion valve (10);
The first end of described cross valve (1) is connected by described connecting line with between described indoor heat exchanger (2);
The output of described compressor (6) is connected with the second end of described cross valve (1) by described oil eliminator (7);
3rd end of described cross valve (1) successively by described outdoor heat exchanger (8), described in heat electric expansion valve (9), described cooling electronic expansion valve (10), the side of described refrigerant refrigerating module (3) and described indoor heat exchanger (2) and be connected with the first end of described cross valve (1) afterwards.
3. the control method of an air-conditioner, described air-conditioner comprises driven compressor plate, refrigerant refrigerating module (3), the first magnetic valve (4), the second magnetic valve (5) and controller, the inlet of the side of described refrigerant refrigerating module (3) is connected with connecting line by described first magnetic valve (4), the liquid outlet of the opposite side of described refrigerant refrigerating module (3) is connected with same section of connecting line by described second magnetic valve (5), it is characterized in that, described control method comprises:
The aperture of described first magnetic valve (4) and described second magnetic valve (5) is controlled the temperature of described driven compressor plate to be controlled in preset range according to the temperature of described driven compressor plate.
4. the control method of air-conditioner according to claim 3, is characterized in that, when unit starting, described second magnetic valve (5) is all opened, and described first magnetic valve (4) is opened half.
5. the control method of air-conditioner according to claim 4, is characterized in that,
After first scheduled time after unit starting, detect the first Current Temperatures of described driven compressor plate;
The first difference between the design temperature calculating described first Current Temperatures and described driven compressor plate;
If described first difference is in preset range, then keep the aperture of described first magnetic valve (4) constant.
6. the control method of air-conditioner according to claim 5, it is characterized in that, if described first difference is less than the lower limit of described preset range when freezing or is less than the upper limit of described preset range when heating, then the aperture of described first magnetic valve (4) is increased the first regulated quantity.
7. the control method of air-conditioner according to claim 6, is characterized in that,
The aperture of described first magnetic valve (4) is being increased the first regulated quantity and after second scheduled time, is detecting the second Current Temperatures of described driven compressor plate;
The second difference between the design temperature calculating described second Current Temperatures and described driven compressor plate;
If described second difference is positioned at described preset range, then the aperture of described first magnetic valve (4) remains unchanged.
8. the control method of air-conditioner according to claim 7, is characterized in that,
If described second difference is less than the lower limit of described preset range when freezing or is less than the upper limit of described preset range when heating, the aperture of described first magnetic valve (4) is then continued to increase the second regulated quantity, so cyclically the aperture of described first magnetic valve (4) is increased progressively described second regulated quantity successively, until described second difference is positioned at described preset range.
9. the control method of air-conditioner according to claim 6, is characterized in that, described first regulated quantity is 2 × | Y-X|, wherein, Y is described design temperature, and X is described first Current Temperatures.
10. the control method of air-conditioner according to claim 8, is characterized in that, described second regulated quantity is 2 × | Y-Xi|, wherein, Y is described design temperature, and Xi is described second Current Temperatures.
The control method of 11. air-conditioners according to claim 5, it is characterized in that, if described first difference is less than the upper limit of described preset range when freezing or is less than the lower limit of described preset range when heating, then the aperture of described first magnetic valve (4) is reduced the 3rd regulated quantity.
The control method of 12. air-conditioners according to claim 11, is characterized in that,
The aperture of described first magnetic valve (4) is being reduced the 3rd regulated quantity and after the 3rd scheduled time, is detecting the 3rd Current Temperatures of described driven compressor plate;
Calculate the 3rd difference between described 3rd Current Temperatures and the design temperature of described driven compressor plate;
If described 3rd difference is positioned at described preset range, then the aperture of described first magnetic valve (4) remains unchanged.
The control method of 13. air-conditioners according to claim 12, is characterized in that,
If described 3rd difference is less than the upper limit of described preset range when freezing or is less than the lower limit of described preset range when heating, the aperture of described first magnetic valve (4) is then continued to reduce the 4th regulated quantity, described 4th regulated quantity of cyclically aperture of described first magnetic valve (4) being successively decreased successively like this, until described 3rd difference is positioned at described preset range.
The control method of 14. air-conditioners according to claim 11, is characterized in that, described 3rd regulated quantity is 2 × | Y-X|, wherein, Y is described design temperature, and X is described first Current Temperatures.
The control method of 15. air-conditioners according to claim 13, is characterized in that, described 4th regulated quantity is 2 × | Y-Xj|, wherein, Y is described design temperature, and Xj is described 3rd Current Temperatures.
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Cited By (4)
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| CN106196425A (en) * | 2016-06-29 | 2016-12-07 | 珠海格力电器股份有限公司 | Power component condensation preventing method, device and system |
| CN107152821A (en) * | 2017-06-05 | 2017-09-12 | 珠海格力电器股份有限公司 | Condensation preventing device and method for refrigerant heat dissipation main control board and air conditioning unit |
| CN107270487A (en) * | 2017-07-10 | 2017-10-20 | 珠海格力电器股份有限公司 | Method, device and system for controlling heat dissipation of air conditioner driving board |
| CN112944517A (en) * | 2021-03-11 | 2021-06-11 | 珠海格力电器股份有限公司 | Photovoltaic air conditioner heat dissipation system and heat dissipation control method and device thereof |
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| CN106196425A (en) * | 2016-06-29 | 2016-12-07 | 珠海格力电器股份有限公司 | Power component condensation preventing method, device and system |
| CN107152821A (en) * | 2017-06-05 | 2017-09-12 | 珠海格力电器股份有限公司 | Condensation preventing device and method for refrigerant heat dissipation main control board and air conditioning unit |
| CN107270487A (en) * | 2017-07-10 | 2017-10-20 | 珠海格力电器股份有限公司 | Method, device and system for controlling heat dissipation of air conditioner driving board |
| CN112944517A (en) * | 2021-03-11 | 2021-06-11 | 珠海格力电器股份有限公司 | Photovoltaic air conditioner heat dissipation system and heat dissipation control method and device thereof |
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