CN106440589B - A kind of method for heating and controlling, system and the air conditioner of crankcase heating tape - Google Patents
A kind of method for heating and controlling, system and the air conditioner of crankcase heating tape Download PDFInfo
- Publication number
- CN106440589B CN106440589B CN201610958443.0A CN201610958443A CN106440589B CN 106440589 B CN106440589 B CN 106440589B CN 201610958443 A CN201610958443 A CN 201610958443A CN 106440589 B CN106440589 B CN 106440589B
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- Prior art keywords
- compressor
- temperature
- condition
- preset
- crankcase
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Classifications
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- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- 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
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/16—Lubrication
-
- 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention is more particularly directed to method for heating and controlling, system and the air conditioners of a kind of crankcase heating tape.The present invention passes through acquisition compressor exhaust temperature and/or compressor bottom temp; it can more accurately judge compressor crankcase temperature; so as to improve crankcase method for heating and controlling; more efficiently compressor can not only be protected; the case where reducing protection not in time; and the case where overprotection can be reduced, the effective consumption of electricity is avoided, energy saving purpose is reached.
Description
Technical field
The present invention relates to airconditioning control field, in particular to a kind of method for heating and controlling of crankcase heating tape, system and
Air conditioner.
Background technique
As the improvement of people's living standards, air conditioning applications are more and more extensive, reliability and energy saving requirement to air-conditioning
Also higher and higher.As the core component compressor of air-conditioning system, reliability is very crucial.Usually at low temperatures, such as
After fruit air-conditioning system shuts down a period of time, since the characteristic of refrigerant migration causes a large amount of liquid coolants there are in compressor chamber body,
Cause compressor lubricant oil seriously to be diluted, while lubricating oil viscosity may also will receive influence under cryogenic conditions, causes to moisten
Sliding miopragia even directly affects the compressor service life when serious, therefore usually air-conditioning system will increase crankcase heating tape pair
Compressor is heated in low-temperature condition, to protect compressor.In the prior art, heating belt of compressor crankcase be according to
Machine time t and environment temperature T carry out start-stop control.When time t and environment temperature T is met certain condition simultaneously, crankcase
Heating tape is opened, and when compressor operation unlatching or when environment temperature T is in non-unlocking condition, crankcase heating tape, which is closed, to be added
Heat.But due to the influence of compressor noise-reduction safeguard procedures and heat of compressor, cause practical around environment temperature T and compressor
Temperature difference is larger, and environment temperature cannot react actual compressor temperature at this time, can not be appropriately determined whether compressor needs
Want crankshaft to heat, the problem of this situation will lead to may there are two: first is that in the presence of that cannot be heated in time, cannot effectively and
When protect compressor, second is that leading to the effective consumption of electricity there may be but heating always without protection, increase energy wave
Take.
Summary of the invention
The present invention provides method for heating and controlling, system and the air conditioners of a kind of crankcase heating tape, solve the above institute
The technical issues of stating.
The technical scheme to solve the above technical problems is that
According to one aspect of the present invention, a kind of method for heating and controlling of crankcase heating tape, including following step are provided
It is rapid:
Step 1, the stand-by time of compressor temperature and compressor is acquired;
Step 2, when the stand-by time of compressor temperature the first preset condition of satisfaction and compressor is greater than or equal to default
Between when, control crankcase heating tape heated;
Step 3, when compressor starts operation or compressor temperature meet the second preset condition, control crankcase heating
Band stops heating;
The compressor temperature includes compressor exhaust temperature and/or compressor bottom temp.
Another aspect according to the present invention additionally provides a kind of heating control system of crankcase heating tape, including acquisition
Module, the first control module and the second control module,
The acquisition module is used to acquire the stand-by time of compressor temperature and compressor;The compressor temperature includes pressure
Contracting machine delivery temperature and/or compressor bottom temp;
The stand-by time that first control module is used to meet when compressor temperature the first preset condition and compressor is big
When preset time, control crankcase heating tape is heated;
Second control module is used for when compressor starts operation or compressor temperature the second preset condition of satisfaction,
It controls crankcase heating tape and stops heating.
In order to solve technical problem of the invention, a kind of air conditioner, including the heating of above-described crankcase are additionally provided
The heating control system of band.
The beneficial effects of the present invention are: the present invention passes through acquisition compressor exhaust temperature and/or compressor bottom temp, it can
It, can not only be more efficient so as to improve crankcase method for heating and controlling more accurately to judge compressor crankcase temperature
The case where compressor is protected on ground, is reduced the case where protecting not in time, and can be reduced overprotection, avoids electricity
Effective consumption reaches energy saving purpose.
Detailed description of the invention
Fig. 1 is the flow diagram of the method for heating and controlling of crankcase heating tape provided in an embodiment of the present invention;
Fig. 2 is the structural schematic diagram of the heating control system of crankcase heating tape provided in an embodiment of the present invention;
Fig. 3 is the structural schematic diagram of air conditioner provided in an embodiment of the present invention.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
Fig. 1 gives a kind of process signal of the method for heating and controlling of crankcase heating tape provided in an embodiment of the present invention
Figure, as shown in Figure 1, comprising the following steps:
Step 1, the stand-by time of compressor temperature and compressor is acquired;
Step 2, when the stand-by time of compressor temperature the first preset condition of satisfaction and compressor is greater than or equal to default
Between when, control crankcase heating tape heated;
Step 3, when compressor starts operation or compressor temperature meet the second preset condition, control crankcase heating
Band stops heating;
The compressor temperature includes compressor exhaust temperature and/or compressor bottom temp.
Method for heating and controlling provided by the above embodiment passes through acquisition compressor exhaust temperature and/or compression motor spindle temperature
Degree, can more accurately judge that compressor crankcase temperature can not only be more so as to improve crankcase method for heating and controlling
The case where effectively protecting to compressor, reducing the case where protecting not in time, and can reduce overprotection, avoids electricity
The effective consumption of amount reaches energy saving purpose.
Optionally, as an embodiment of the present invention, in step 1, by the first temperature that exhaust outlet of compressor is arranged in
Degree sensor acquires the compressor exhaust temperature and/or is adopted by the way that the second temperature sensor at compressor crankcase is arranged in
Collect compressor bottom temp.Specifically, in this embodiment, first temperature sensor uses the first temperature sensing package, the first sense
The exhaust ports of compressor are arranged in thermometer bulb, and compressor is equipped with compressor sound insulation shield, thus fast and accurately to pressure
The delivery temperature of contracting machine exhaust ports is acquired.The second temperature sensor uses the second temperature sensing package, and the second temperature sensing package is set
It sets at compressor crankcase, to be fast and accurately acquired to temperature at compressor crankcase.
Optionally, as an embodiment of the present invention, when compressor temperature is compressor exhaust temperature, first is default
Condition is compressor exhaust temperature less than the first preset temperature, and the second preset condition is that compressor exhaust temperature is greater than or equal to the
Two preset temperatures;The value range of first preset temperature is 0~10 DEG C, it is preferred that the value of first preset temperature
Range is 0~5 DEG C, such as 2 DEG C;The value range of second preset temperature is 10~20 DEG C, it is preferred that described second is default
The value range of temperature is 10~15 DEG C, such as 12 DEG C.In this embodiment, compressor exhaust temperature is due to close to compressor end
And heat transfer, compressor exhaust temperature can be more nearly the actual temperature of compressor mutually, and can be than more accurately embodying compression
The situation of change of machine temperature, therefore be better than according to the effect that compressor exhaust temperature carries out computer heating control to crankcase heating tape
The prior art carries out the effect of computer heating control according to environment temperature.When compressor stand-by time and compressor exhaust temperature satisfaction are opened
When opening condition, that is, it can determine whether that needing to open crankcase heating tape carries out compressor crank shaft heating, protects the safety of air-conditioning system;When
When compressor starts operation or compressor exhaust temperature meet closedown condition, control crankcase heating tape is closed, and is reduced the energy and is disappeared
Consumption.
Optionally, as an embodiment of the present invention, when compressor temperature is compressor bottom temp, first is default
Condition is that compressor bottom temp is less than third preset temperature, and the second preset condition is that compressor bottom temp is greater than or equal to the
Four preset temperatures, the value range of the third preset temperature are 0~10 DEG C, it is preferred that the value of the third preset temperature
Range is 0~5 DEG C, such as 3 DEG C;The value range of 4th preset temperature is 10~20 DEG C, it is preferred that the described 4th is default
The value range of temperature is 10~15 DEG C, such as 13 DEG C.In this embodiment, the temperature near compressor crankcase is directly acquired
Degree, i.e. compressor bottom temp, by compressor bottom temp can than more accurately embodying the situation of change of compressor temperature,
Therefore the prior art is better than according to environment according to the effect that compressor bottom temp carries out computer heating control to crankcase heating tape
The effect of temperature progress computer heating control.When compressor stand-by time and compressor bottom temp meet unlocking condition, can sentence
It is disconnected to need to open the progress compressor crank shaft heating of crankcase heating tape, protect the safety of air-conditioning system;When compressor starts are run
Or compressor bottom temp, when reaching closedown condition, control crankcase heating tape is closed, and reduces energy consumption.
Optionally, as an embodiment of the present invention, compressor temperature includes compressor bottom temp and compressor row
Temperature degree more can determine directly and accurately compressor crankcase in conjunction with compressor bottom temp and compressor exhaust temperature
Temperature dynamic changes, and according to refrigerant will be slow from the characteristic of the low zone migration of trend temperature, more reasonably
Control the operation of crankshaft heating band.Specifically, in this embodiment, first preset condition is condition 1 or condition 2, described
Condition 1 is that compressor bottom temp is less than or equal to the 5th preset temperature, and condition 2 is that compressor bottom temp is arranged less than compressor
Temperature degree and compressor bottom temp are less than or equal to the 6th preset temperature, and the value range of the 5th preset temperature is -8
~-15 DEG C, the value range of the 6th preset temperature is 10~15 DEG C.Second preset condition be condition 3 or condition 4,
The condition 3 is that compressor bottom temp is greater than or equal to the 7th preset temperature, and condition 4 is that compressor bottom temp is greater than compression
Machine delivery temperature and compressor bottom temp are greater than the 8th preset temperature, and the value range of the 7th preset temperature is 15~20
DEG C, the value range of the 8th preset temperature is -8~-15 DEG C.In this embodiment, compressor bottom temp directly embodies
Temperature near crankcase, and compressor exhaust temperature is then since the thermal conduction characteristic of copper pipe can reaction environment temperature faster
Variation, therefore by comparing both temperature can more truly embody the situation of change of temperature at compressor crank shaft, from
And more intuitively and accurately judge whether compressor is currently under conditions of refrigerant accumulation, to control crankcase heating tape
Switch.Preventing refrigerant from accumulating is the most critical function of crankshaft heating, in addition when compressor bottom temp is down to influencing compressor
Then crankshaft heating band is opened when lubricating oil function.According to the above guideline, when stand-by time and compressor bottom temp and pressure
When contracting machine delivery temperature meets unlocking condition, that is, it can determine whether that needing to open crankcase heating tape carries out compressor crank shaft heating, protects
Protect the safety of air-conditioning system;When compressor starts operation or compressor bottom temp and compressor exhaust temperature reach closedown condition
When, control crankcase heating tape is closed, and energy consumption is reduced.
Above in association with Fig. 1, the method for heating and controlling of crankcase heating tape according to an embodiment of the present invention is described in detail, under
Face combines Fig. 2, and the heating control system of crankcase heating tape according to an embodiment of the present invention is described in detail.
As shown in Fig. 2, the structural schematic diagram of the heating control system for crankcase heating tape provided in an embodiment of the present invention,
Including acquisition module, the first control module and the second control module,
The acquisition module is used to acquire the stand-by time of compressor temperature and compressor;The compressor temperature includes pressure
Contracting machine delivery temperature and/or compressor bottom temp;
The stand-by time that first control module is used to meet when compressor temperature the first preset condition and compressor is big
When preset time, control crankcase heating tape is heated;
Second control module is used for when compressor starts operation or compressor temperature the second preset condition of satisfaction,
It controls crankcase heating tape and stops heating.
In a preferred embodiment, the acquisition module includes the first temperature sensor that exhaust outlet of compressor is arranged in
And/or the second temperature sensor at compressor crankcase is set, first temperature sensor is for acquiring compressor row
Temperature degree, the second temperature sensor is for acquiring compressor bottom temp.
Optionally, in a preferred embodiment of the invention, when compressor temperature is compressor exhaust temperature, first
Preset condition is compressor exhaust temperature less than the first preset temperature, and the second preset condition is that compressor exhaust temperature is greater than or waits
In the second preset temperature, the value range of first preset temperature is 0~10 DEG C, it is preferred that first preset temperature
Value range is 0~5 DEG C, such as 2 DEG C;The value range of second preset temperature is 10~20 DEG C, it is preferred that described second
The value range of preset temperature is 10~15 DEG C, such as 12 DEG C.
Optionally, in another preferred embodiment of the invention, when compressor temperature is compressor bottom temp, the
One preset condition be compressor bottom temp be less than third preset temperature, the second preset condition be compressor bottom temp be greater than or
Equal to the 4th preset temperature, the value range of the third preset temperature is 0~10 DEG C, it is preferred that the third preset temperature
Value range be 0~5 DEG C, such as 3 DEG C;The value range of 4th preset temperature is 10~20 DEG C, it is preferred that described the
The value range of four preset temperatures is 10~15 DEG C, such as 13 DEG C.
In another preferred embodiment, when compressor temperature includes compressor bottom temp and compressor exhaust temperature,
First preset condition is condition 1 or condition 2, and the condition 1 is that compressor bottom temp is less than or equal to the 5th default temperature
Degree, condition 2 are that compressor bottom temp is less than compressor exhaust temperature and compressor bottom temp is less than or equal to the 6th and presets
Temperature, the value range of the 5th preset temperature are -8~-15 DEG C, and the value range of the 6th preset temperature is 10~15
℃.And second preset condition is condition 3 or condition 4, the condition 3 is that compressor bottom temp is greater than or equal to the 7th in advance
If temperature, condition 4 is that compressor bottom temp is greater than compressor exhaust temperature and compressor bottom temp is greater than the 8th default temperature
Degree, the value range of the 7th preset temperature are 15~20 DEG C, and the value range of the 8th preset temperature is -8~-15
℃。
The present invention also provides a kind of air conditioners, as shown in figure 3, being the structural schematic diagram of air conditioner, including any of the above institute
The heating control system for the crankcase heating tape stated.
The present invention can more accurately judge to press by acquisition compressor exhaust temperature and/or compressor bottom temp
Contracting machine crankshaft box temperature degree can not only more efficiently protect compressor so as to improve crankcase method for heating and controlling,
The case where reducing the case where protecting not in time, and can reducing overprotection, avoids the effective consumption of electricity, reaches energy saving mesh
's.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of method for heating and controlling of crankcase heating tape, which comprises the following steps:
Step 1, the stand-by time of compressor temperature and compressor is acquired;
Step 2, when the stand-by time of compressor temperature the first preset condition of satisfaction and compressor is greater than or equal to preset time,
It is heated control crankcase heating tape;
Step 3, when compressor starts operation or compressor temperature meet the second preset condition, control crankcase heating tape is stopped
Only heat;
The compressor temperature includes compressor exhaust temperature and compressor bottom temp;
When compressor temperature includes compressor bottom temp and compressor exhaust temperature, first preset condition is condition 2,
The condition 2 is that compressor bottom temp is less than compressor exhaust temperature and compressor bottom temp is less than or equal to the 6th and presets
Temperature, the value range of the 6th preset temperature are 10~15 DEG C.
2. the method for heating and controlling of crankcase heating tape according to claim 1, which is characterized in that the preset time
Value range is 4~7 hours.
3. the method for heating and controlling of crankcase heating tape according to claim 1 or 2, which is characterized in that in step 1, lead to
Cross the first temperature sensor acquisition compressor exhaust temperature that exhaust outlet of compressor is set and by being arranged in compressor
Second temperature sensor at crankcase acquires compressor bottom temp.
4. the method for heating and controlling of crankcase heating tape according to claim 3, which is characterized in that the second default item
Part is condition 3 or condition 4, and the condition 3 is that compressor bottom temp is greater than or equal to the 7th preset temperature, and condition 4 is compression
Motor spindle temperature is greater than compressor exhaust temperature and compressor bottom temp is greater than the 8th preset temperature, the 7th preset temperature
Value range be 15~20 DEG C, the value range of the 8th preset temperature is -8~-15 DEG C.
5. a kind of heating control system of crankcase heating tape, which is characterized in that including acquisition module, the first control module and
Two control modules,
The acquisition module is used to acquire the stand-by time of compressor temperature and compressor;The compressor temperature includes compressor
Delivery temperature and compressor bottom temp;
First control module be used to be greater than when the stand-by time that compressor temperature meets the first preset condition and compressor or
When equal to preset time, control crankcase heating tape is heated;
Second control module is used for the control when compressor starts operation or compressor temperature the second preset condition of satisfaction
Crankcase heating tape stops heating;
When compressor temperature includes compressor bottom temp and compressor exhaust temperature, first preset condition is condition 2,
The condition 2 is that compressor bottom temp is less than compressor exhaust temperature and compressor bottom temp is less than or equal to the 6th and presets
Temperature, the value range of the 6th preset temperature are 10~15 DEG C.
6. the heating control system of crankcase heating tape according to claim 5, which is characterized in that the acquisition module packet
Include the first temperature sensor that exhaust outlet of compressor is set and the second temperature sensor being arranged at compressor crankcase, institute
The first temperature sensor is stated for acquiring compressor exhaust temperature, the second temperature sensor is for acquiring compression motor spindle temperature
Degree.
7. the heating control system of crankcase heating tape according to claim 6, which is characterized in that the second default item
Part is condition 3 or condition 4, and the condition 3 is that compressor bottom temp is greater than or equal to the 7th preset temperature, and condition 4 is compression
Motor spindle temperature is greater than compressor exhaust temperature and compressor bottom temp is greater than the 8th preset temperature, the 7th preset temperature
Value range be 15~20 DEG C, the value range of the 8th preset temperature is -8~-15 DEG C.
8. a kind of air conditioner, which is characterized in that the computer heating control including any crankcase heating tape of claim 5~7
System.
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CN201610958443.0A CN106440589B (en) | 2016-11-03 | 2016-11-03 | A kind of method for heating and controlling, system and the air conditioner of crankcase heating tape |
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CN201610958443.0A CN106440589B (en) | 2016-11-03 | 2016-11-03 | A kind of method for heating and controlling, system and the air conditioner of crankcase heating tape |
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CN106440589B true CN106440589B (en) | 2019-07-26 |
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CN107255069B (en) * | 2017-07-07 | 2019-06-28 | 广东美的暖通设备有限公司 | Compressor control method, compressor and heat pump system |
CN108266900B (en) * | 2017-12-29 | 2020-08-28 | 广东高而美制冷设备有限公司 | Control method for controlling starting and stopping of crankshaft heating belt based on water temperature |
CN108374777A (en) * | 2018-01-22 | 2018-08-07 | 珠海格力电器股份有限公司 | A kind of compressor preheating control method, device, storage medium and equipment |
CN109458711A (en) * | 2018-11-05 | 2019-03-12 | 珠海格力电器股份有限公司 | A kind of compressor heat tape control method, device, storage medium and air conditioner |
US11435125B2 (en) | 2019-01-11 | 2022-09-06 | Carrier Corporation | Heating compressor at start-up |
US11624539B2 (en) | 2019-02-06 | 2023-04-11 | Carrier Corporation | Maintaining superheat conditions in a compressor |
CN110219794A (en) * | 2019-06-28 | 2019-09-10 | 广东志高暖通设备股份有限公司 | A kind of crankcase heating tape control method of compressor |
CN110454953B (en) * | 2019-08-05 | 2021-09-21 | 广东美的制冷设备有限公司 | Control method and device of air conditioner and air conditioner |
CN113847687A (en) * | 2021-09-18 | 2021-12-28 | 珠海格力电器股份有限公司 | Preheating control method and device for compressor |
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