CN103115416A - Air-conditioner outdoor motor control method - Google Patents
Air-conditioner outdoor motor control method Download PDFInfo
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- CN103115416A CN103115416A CN 201310067624 CN201310067624A CN103115416A CN 103115416 A CN103115416 A CN 103115416A CN 201310067624 CN201310067624 CN 201310067624 CN 201310067624 A CN201310067624 A CN 201310067624A CN 103115416 A CN103115416 A CN 103115416A
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Abstract
The invention relates to the technical field of air-conditioners in electrical equipment, in particular to an air-conditioner outdoor motor control method, and aims at reducing noise and vibration production in the process of starting to a high rotation speed of an overall unit. The air-conditioner outdoor motor control method includes the following steps: S1, starting up: the rotation speed of an outdoor fan motor is improved to P (i) max from an actual rotation speed P (actual), and then the outdoor fan motor operates for 3minutes, wherein the P (actual) is equal to n P (i) max; and S2, the difference value delta T between temperature of indoor environment and set temperature of an indoor unit is judged. According to the air-conditioner outdoor motor control method, the rotation speed of the starting stage of the outdoor motor is set to be from low to high, and therefore the noise and the vibration are not easily produced in the process of the starting to the high rotation speed of the overall unit, and use comfortable sensation of users is improved.
Description
Technical field
The present invention relates to the air-conditioner technical field in electric equipment, more specifically, relate to a kind of method for controlling air conditioning outdoor motor.
Background technology
Split type air conditioner is all generally the refrigerating plant that adopts mechanical compression type, and its basic element has four: compressor, evaporimeter, condenser and throttling arrangement, and the 4th, communicate, wherein charging refrigerant.Compressor makes refrigerant continuously flow in air-conditioner as blood as the heart of a Pentium, realizes room temperature is regulated.The gaseous coolant of low pressure is inhaled into compressor, is compressed into the gas of HTHP; Then, gaseous coolant flows to outdoor condenser, in outdoor heat radiation process, is condensed into gradually highly pressurised liquid; Then, become again the gas-liquid mixture of low-temp low-pressure by throttling arrangement step-down (also cooling simultaneously).At this moment, the refrigerant of gas-liquid mixed just can be brought into play " power " of air conditioner refrigerating: it enters indoor evaporimeter, the constantly vaporization by airborne heat in absorption chamber, like this, the temperature in room has reduced, and it has also become again low-pressure gas, has reentered compressor.So move in circles, air-conditioning just can continuously turn round work.
For convertible frequency air-conditioner, maximum advantage is exactly can be according to the thermic load in room and output that can adaptively modifying refrigerating capacity/heating capacity, present convertible frequency air-conditioner is by regulating the rotating speed of compressor, and the way of the mass flow in the change system is come the regulation output ability.Because the convertible frequency air-conditioner adjustable range is wide, general regulating frequency scope can reach the 80Hz left and right, corresponding so large compressor frequency adjustable range, and the regulating power of outdoor motor is very just general.Outdoor motor generally adopts tap motor or direct current generator; The gear of tap motor is fixed as 2 grades or 3 grades; At present, the outdoor rotating speed of direct current generator also is fixed as 2 grades or 3 grades of rotating speeds by the software setting.Therefore for present convertible frequency air-conditioner, can stepless time adjustment just for compressor, outdoor motor can not be very accurately regulated according to the condition intelligent ground of refrigeration system, can not be according to the frequency of compressor and the outer rotating speed of conditioning chamber correspondingly, except the waste that brings electric power, also bring the problem of undue heat exchange or heat exchange deficiency, and indoor evaporator frosting when causing condensation and cryogenic refrigeration, the comfortableness problem such as freeze.
Further, as disclosed in Chinese patent (Granted publication CN101714847B) a kind of can be according to the method for controlling air conditioning outdoor motor of the frequency state self-adapting operation of environment temperature and compressor, but above-mentioned patent there is no the detailed description regulation of outdoor motor starting stage rotating speed rotating speed from low to high makes complete machine be easy to produce noise and vibration in starting to high Rotation Process, has affected user's use comfort.
Summary of the invention
The present invention provides a kind of complete machine can reduce the method for controlling air conditioning outdoor motor that produces noise and vibration in starting to high Rotation Process for overcoming the described at least a defective of above-mentioned prior art.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of method for controlling air conditioning outdoor motor, comprising following steps:
S1. start, the outdoor fan motor rotating speed is made following regulation: minimum speed P (i) min and maximum speed P (i) max of outdoor fan motor are set, and the outdoor fan motor rotating speed is limited between P (i) min and P (i) max, i=1,2,3,4; Outdoor fan motor rises to P (i) max and turned round 3 minutes with actual speed P reality=nP (i) max, n=1/3,2/3,1;
S2. the difference △ T according to indoor environment temperature and indoor set set temperature is divided into the first operating mode, the second operating mode, the 3rd operating mode and the 4th operating mode totally four operating modes;
If the difference △ T of indoor environment temperature and indoor set set temperature is in the first operating mode, outdoor fan motor is set moves with actual speed P reality=P (i) max;
If the difference △ T of indoor environment temperature and indoor set set temperature is in the second operating mode, actual speed P reality=K (△ T) * P (i) max of outdoor fan motor+△ P (△ T, t) is set;
If the difference △ T of indoor environment temperature and indoor set set temperature is in the 3rd operating mode, actual speed P reality=K (△ T) * P (i) min of outdoor fan motor+△ P (△ T, t) is set;
If the difference △ T of indoor environment temperature and indoor set set temperature is in the 4th operating mode; If the running frequency f of off-premises station frequency-changeable compressor (i)=0 arranges outdoor fan motor and shuts down after 5 minutes with actual speed P reality=P (i) min running; If the running frequency f of off-premises station frequency-changeable compressor (i) ≠ 0 arranges outdoor fan motor and turns round until the running frequency f of off-premises station frequency-changeable compressor (i)=0 with actual speed P reality=P (i) min.
Further, the temperature difference of first operating mode, second operating mode, three operating mode and four operating mode of the difference △ T of described indoor environment temperature and indoor set set temperature when air conditioner refrigerating is respectively:
The first operating mode: △ T＞3 ℃;
The second operating mode :-1 ℃＜△ T≤3 ℃;
The 3rd operating mode :-2 ℃＜△ T≤-1 ℃;
The 4th operating mode: △ T≤-2 ℃.
Further, the temperature difference of first operating mode, second operating mode, three operating mode and four operating mode of the difference △ T of described indoor environment temperature and indoor set set temperature when air-conditioning heating is respectively:
The first operating mode: △ T≤-3 ℃;
The second operating mode: 1 ℃ 〉=△ T＞-3 ℃;
The 3rd operating mode: 2 ℃ 〉=△ T＞1 ℃;
The 4th operating mode: △ T＞2 ℃.
In described step S1, the rotating speed of outdoor fan motor is divided into two platforms by 0 to maximum speed P (i) max, is respectively the first platform P1 and the second platform P2, the first platform P1=0.25P (i) max, the second platform P2=0.5 P (i) max;
A. the first platform P1=0.25P (i) max operation 1 minute, the second platform P2=0.5 P (i) max operation 3 minutes; Can make complete machine be difficult for producing noise and vibration in starting to high Rotation Process so that the rotating speed of outdoor fan motor increases stably like this, improve user's use comfort.
B. stopping process: if current protecting function is had an effect, compressor shuts down, and outdoor fan motor is out of service with current rotating speed P (i).
Compared with prior art, beneficial effect is:
1. the present invention needn't additionally increase cost, by the change to the Electric Machine Control pattern, realized that outdoor motor can operation adaptive according to the frequency state of environment temperature and compressor, the wasted work of having saved motor, remain high energy efficiency, it is the most energy-conservation that air-conditioning remains during whole service.
2. Based Intelligent Control pattern of the present invention is fully according to the characteristics of frequency conversion and corresponding adjusting parameter, solved due to undue heat exchange and heat exchange is not enough indoor evaporator frosting when causing condensation and cryogenic refrigeration, the comfortableness problem such as freeze.
3. the present invention has set outdoor motor starting stage rotating speed rotating speed from low to high and has made complete machine difficult generation noise and vibration in starting to high Rotation Process, has improved user's use comfort.
Description of drawings
Fig. 1 is outdoor fan motor control flow chart of the present invention.
Fig. 2 is the rotating speed P (i) of outdoor fan motor of the present invention and the schematic diagram that concerns of time t.
The specific embodiment
As shown in Figure 1, a kind of method for controlling air conditioning outdoor motor, comprising following steps:
S1. start, the outdoor fan motor rotating speed is made following regulation: minimum speed P (i) min and maximum speed P (i) max of outdoor fan motor are set, and the outdoor fan motor rotating speed is limited between P (i) min and P (i) max, i=1,2,3,4; Outdoor fan motor rises to P (i) max and turned round 3 minutes with actual speed P reality=nP (i) max, n=1/3,2/3,1;
S2. the difference △ T according to indoor environment temperature and indoor set set temperature is divided into the first operating mode, the second operating mode, the 3rd operating mode and the 4th operating mode totally four operating modes;
If the difference △ T of indoor environment temperature and indoor set set temperature is in the first operating mode, outdoor fan motor is set moves with actual speed P reality=P (i) max;
If the difference △ T of indoor environment temperature and indoor set set temperature is in the second operating mode, actual speed P reality=K (△ T) * P (i) max of outdoor fan motor+△ P (△ T, t) is set;
If the difference △ T of indoor environment temperature and indoor set set temperature is in the 3rd operating mode, actual speed P reality=K (△ T) * P (i) min of outdoor fan motor+△ P (△ T, t) is set;
If the difference △ T of indoor environment temperature and indoor set set temperature is in the 4th operating mode; If the running frequency f of off-premises station frequency-changeable compressor (i)=0 arranges outdoor fan motor and shuts down after 5 minutes with actual speed P reality=P (i) min running; If the running frequency f of off-premises station frequency-changeable compressor (i) ≠ 0 arranges outdoor fan motor and turns round until the running frequency f of off-premises station frequency-changeable compressor (i)=0 with actual speed P reality=P (i) min.
Further, the temperature difference of first operating mode, second operating mode, three operating mode and four operating mode of the difference △ T of described indoor environment temperature and indoor set set temperature when air conditioner refrigerating is respectively:
The first operating mode: △ T＞3 ℃;
The second operating mode :-1 ℃＜△ T≤3 ℃;
The 3rd operating mode :-2 ℃＜△ T≤-1 ℃;
The 4th operating mode: △ T≤-2 ℃.
Further, the temperature difference of first operating mode, second operating mode, three operating mode and four operating mode of the difference △ T of described indoor environment temperature and indoor set set temperature when air-conditioning heating is respectively:
The first operating mode: △ T≤-3 ℃;
The second operating mode: 1 ℃ 〉=△ T＞-3 ℃;
The 3rd operating mode: 2 ℃ 〉=△ T＞1 ℃;
The 4th operating mode: △ T＞2 ℃.
As shown in Figure 2, transverse axis represents time t, and vertical axis represents outdoor fan motor rotating speed P (i), and as can be seen from the figure, at first P (i) increases with a slope, then with the first platform P1=0.25P (i) max operation 1 minute; Then increase with a slope, the second platform P2=0.5 P (i) max operation 3 minutes, then increase to P (i) max with a slope; Can make complete machine be difficult for producing noise and vibration in starting to high Rotation Process so that the rotating speed of outdoor fan motor increases stably like this, improve user's use comfort.
Be stopping process afterwards: if current protecting function is had an effect, compressor shuts down, and outdoor fan motor is out of service with current rotating speed P (i).
The above is only the preferred embodiment of the present invention, should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can do the improvement of some suitable actual conditions to the technical scheme of invention.Therefore, protection scope of the present invention is not limited to this, and those of skill in the art are any to be included within protection domain of the present invention based on non-material change on technical solution of the present invention.
Claims (4)
1. method for controlling air conditioning outdoor motor is characterized in that comprising the following steps:
S1. start, the outdoor fan motor rotating speed is made following regulation: minimum speed P (i) min and maximum speed P (i) max of outdoor fan motor are set, and the outdoor fan motor rotating speed is limited between P (i) min and P (i) max, i=1,2,3,4; Outdoor fan motor rises to P (i) max and turned round 3 minutes with actual speed P reality=nP (i) max, n=1/3,2/3,1;
S2. the difference △ T according to indoor environment temperature and indoor set set temperature is divided into the first operating mode, the second operating mode, the 3rd operating mode and the 4th operating mode totally four operating modes;
If the difference △ T of indoor environment temperature and indoor set set temperature is in the first operating mode, outdoor fan motor is set moves with actual speed P reality=P (i) max;
If the difference △ T of indoor environment temperature and indoor set set temperature is in the second operating mode, actual speed P reality=K (△ T) * P (i) max of outdoor fan motor+△ P (△ T, t) is set;
If the difference △ T of indoor environment temperature and indoor set set temperature is in the 3rd operating mode, actual speed P reality=K (△ T) * P (i) min of outdoor fan motor+△ P (△ T, t) is set;
If the difference △ T of indoor environment temperature and indoor set set temperature is in the 4th operating mode; If the running frequency f of off-premises station frequency-changeable compressor (i)=0 arranges outdoor fan motor and shuts down after 5 minutes with actual speed P reality=P (i) min running; If the running frequency f of off-premises station frequency-changeable compressor (i) ≠ 0 arranges outdoor fan motor and turns round until the running frequency f of off-premises station frequency-changeable compressor (i)=0 with actual speed P reality=P (i) min.
2. a kind of method for controlling air conditioning outdoor motor according to claim 1, it is characterized in that: the temperature difference of first operating mode, second operating mode, three operating mode and four operating mode of the difference △ T of described indoor environment temperature and indoor set set temperature when air conditioner refrigerating is respectively:
The first operating mode: △ T＞3 ℃;
The second operating mode :-1 ℃＜△ T≤3 ℃;
The 3rd operating mode :-2 ℃＜△ T≤-1 ℃;
The 4th operating mode: △ T≤-2 ℃.
3. a kind of method for controlling air conditioning outdoor motor according to claim 1, it is characterized in that: the temperature difference of first operating mode, second operating mode, three operating mode and four operating mode of the difference △ T of described indoor environment temperature and indoor set set temperature when air-conditioning heating is respectively:
The first operating mode: △ T≤-3 ℃;
The second operating mode: 1 ℃ 〉=△ T＞-3 ℃;
The 3rd operating mode: 2 ℃ 〉=△ T＞1 ℃;
The 4th operating mode: △ T＞2 ℃.
4. a kind of method for controlling air conditioning outdoor motor according to claim 1, it is characterized in that: in described step S1, the rotating speed of outdoor fan motor is divided into two platforms by 0 to maximum speed P (i) max, respectively the first platform P1 and the second platform P2, the first platform P1=0.25P (i) max, the second platform P2=0.5 P (i) max;
A. the first platform P1=0.25P (i) max operation 1 minute, the second platform P2=0.5 P (i) max operation 3 minutes;
B. stopping process: if current protecting function is had an effect, compressor shuts down, and outdoor fan motor is out of service with current rotating speed P (i).
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| CN 201310067624 CN103115416A (en) | 2013-03-04 | 2013-03-04 | Air-conditioner outdoor motor control method |
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| CN 201310067624 CN103115416A (en) | 2013-03-04 | 2013-03-04 | Air-conditioner outdoor motor control method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236000A (en) * | 2013-06-17 | 2014-12-24 | 海尔集团公司 | Air conditioner outdoor fan starting method |
| CN105042768A (en) * | 2015-06-29 | 2015-11-11 | 宁波奥克斯电气有限公司 | Control method for preventing indoor heat exchanger from frosting when frequency conversion air conditioner operates in refrigerating mode |
| CN105066360A (en) * | 2015-08-19 | 2015-11-18 | 广东美的暖通设备有限公司 | Heat recovery air conditioning and water heating unit and control method of outdoor fan in heat recovery air conditioning and water heating unit |
| CN104279708B (en) * | 2014-10-08 | 2017-06-27 | 广东美的制冷设备有限公司 | The control method of air-conditioner, the control device of air-conditioner and air-conditioner |
| CN107975924A (en) * | 2017-11-07 | 2018-05-01 | 珠海格力电器股份有限公司 | The wind turbine of multi fan air-conditioning system starts control method and air-conditioning system |
| CN108119996A (en) * | 2017-12-15 | 2018-06-05 | 广东美的制冷设备有限公司 | Air conditioner blower control method, electronic equipment and computer readable storage medium |
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2013
- 2013-03-04 CN CN 201310067624 patent/CN103115416A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236000A (en) * | 2013-06-17 | 2014-12-24 | 海尔集团公司 | Air conditioner outdoor fan starting method |
| CN104236000B (en) * | 2013-06-17 | 2016-11-09 | 海尔集团公司 | A kind of outdoor fan of air-conditioner starts method |
| CN104279708B (en) * | 2014-10-08 | 2017-06-27 | 广东美的制冷设备有限公司 | The control method of air-conditioner, the control device of air-conditioner and air-conditioner |
| CN105042768A (en) * | 2015-06-29 | 2015-11-11 | 宁波奥克斯电气有限公司 | Control method for preventing indoor heat exchanger from frosting when frequency conversion air conditioner operates in refrigerating mode |
| CN105042768B (en) * | 2015-06-29 | 2018-03-20 | 宁波奥克斯电气股份有限公司 | The control method of indoor heat exchanger frosting is prevented during inverter air conditioner refrigerating operaton |
| CN105066360A (en) * | 2015-08-19 | 2015-11-18 | 广东美的暖通设备有限公司 | Heat recovery air conditioning and water heating unit and control method of outdoor fan in heat recovery air conditioning and water heating unit |
| CN105066360B (en) * | 2015-08-19 | 2018-03-16 | 广东美的暖通设备有限公司 | The control method of heat recovery air conditioner hot water machine and wherein outdoor fan |
| CN107975924A (en) * | 2017-11-07 | 2018-05-01 | 珠海格力电器股份有限公司 | The wind turbine of multi fan air-conditioning system starts control method and air-conditioning system |
| CN108119996A (en) * | 2017-12-15 | 2018-06-05 | 广东美的制冷设备有限公司 | Air conditioner blower control method, electronic equipment and computer readable storage medium |
| CN108119996B (en) * | 2017-12-15 | 2020-04-03 | 广东美的制冷设备有限公司 | Air conditioner fan control method, electronic device and computer readable storage medium |
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Application publication date: 20130522 |