CN106288569A - Air conditioner and electric heating belt control method and device thereof - Google Patents
Air conditioner and electric heating belt control method and device thereof Download PDFInfo
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- CN106288569A CN106288569A CN201610682272.3A CN201610682272A CN106288569A CN 106288569 A CN106288569 A CN 106288569A CN 201610682272 A CN201610682272 A CN 201610682272A CN 106288569 A CN106288569 A CN 106288569A
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- 238000005485 electric heating Methods 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000003507 refrigerant Substances 0.000 claims abstract description 55
- 238000010438 heat treatment Methods 0.000 claims description 30
- 238000001514 detection method Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 abstract description 21
- 230000006378 damage Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 description 14
- 230000006835 compression Effects 0.000 description 13
- 238000007906 compression Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
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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
- F25B2500/06—Damage
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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
- F25B2600/00—Control issues
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2106—Temperatures of fresh outdoor air
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner and an electric heating belt control method and device of the air conditioner. Wherein the method comprises the following steps: when the air conditioner is in a starting state, comparing the detected outdoor environment temperature with one or more preset temperatures, wherein different preset temperatures are compared with the preset temperatures of different working states of different electric heating belts; and controlling the working state of the electric heating belt according to the preset temperature and the comparison result so that the refrigerant in the working state of the electric heating belt has a certain superheat degree. According to the scheme of the invention, a certain superheat degree of the refrigerant sucked by the compressor can be ensured, and the damage to the compressor after the liquid refrigerant is sucked is avoided, so that the service life of the compressor in the air conditioner is prolonged, and the working reliability of the whole air conditioner system is improved to the greatest extent.
Description
Technical Field
The invention relates to the technical field of electric appliances, in particular to an air conditioner and an electric heating belt control method and device thereof.
Background
After the air conditioner is shut down, along with the gradual pressure balance, the refrigerant (refrigerant) of the air conditioner can be distributed in all parts of the whole system of the air conditioner, and the refrigerant of the system can be migrated under the influence of the temperature difference between the internal environment and the external environment. If the outdoor environment temperature is low, the temperature difference is generated between the internal environment temperature and the external environment temperature of the air conditioner, and the outdoor unit of the air conditioner usually accumulates more refrigerants to greatly damage parts of the compressor.
Specifically, a compressor of an air conditioner is a driven fluid machine for raising low-pressure gas into high-pressure gas, and is a heart of a refrigeration system. The refrigeration cycle comprises a gas suction pipe, a motor, a piston, an exhaust pipe, a compression pipe, a condensation pipe, an expansion pipe, an evaporation pipe, a heat exchange pipe and a heat exchange pipe.
The refrigerant is a working fluid or a substance for transferring heat energy to generate a refrigeration effect in a refrigeration and air conditioning system. It tends to absorb heat to become a gas and to release heat to become a liquid, such as evaporation and condensation.
If the liquid refrigerant enters the compressor of the air conditioner, the corrosion and oxidation condition is easy to generate due to no gas-water separation inside the compressor, the compressor is damaged, and the occupied space cannot be used to benefit (for example, the liquid refrigerant appears to be in a state of insufficient refrigerant) due to the liquid refrigerant is not compressed.
In the prior art, one or more groups of electric heating belts are arranged (additionally installed) in the compressor (such as the bottom of the compressor) to prevent the compressor from sucking liquid refrigerant in the starting and running processes, and as shown in fig. 5 in particular, the mode of controlling the heating of the electric heating belts to prevent the liquid refrigerant from sucking in the prior art is adopted: determining whether the air conditioner is turned on; if yes, the power supply of the electric heating belt is cut off; if not, comparing the external environment temperature T of the air conditioner with the set threshold temperatures T0 and T1, disconnecting the power supply (power loss) of the electric heating if T is greater than T0, and if the size of T is in a closed interval [ T1, T0], namely T is greater than or equal to T1 and less than or equal to T0, maintaining the previous operation state, namely if the current state is the state of disconnecting the power supply of the electric heating belt, continuing to maintain the state of disconnecting the power supply of the electric heating belt; if the current state is the heating state of the starting electric heating belt, the heating state of the starting electric heating belt is continuously maintained. If T is less than T1, heating of the electrical heating tape is turned on (i.e., the electrical heating tape is powered on). In this way, when the compressor is stopped, the electric heater is electrified to start heating the interior of the compressor; when the compressor starts, the electric heating belt loses electricity immediately. Therefore, in actual operation, the air conditioner is found to be disconnected from heating of the electric heating belt when the air conditioner is started (for example, in a state that a compressor, a fan and the like of the air conditioner are started or operated), and when the air conditioner is switched from a shutdown state to a power-on startup state (switching process), a refrigerant of an outer machine of the air conditioner is continuously sucked into the compression cavity, and the bottom of the compressor is in a negative pressure state, so that the compressor still sucks a liquid refrigerant in the operation process, thereby damaging compressor components and reducing the reliability of a compressor system. Further, after the air conditioner started operation, along with the refrigerant of the entire system of air conditioner constantly by the suction compression chamber, the compressor bottom also is in the negative pressure state, and the refrigerant can constantly evaporate and get into the compression chamber, and if outer loop temperature T is lower or the refrigerant volume of evaporation is less than the inspiratory refrigerant volume of compressor, can also make the compressor operation in-process inhale liquid refrigerant, harm compressor unit, reduce compressor system reliability.
Disclosure of Invention
In view of the above, the present invention provides an air conditioner and a method and a device for controlling an electric heating strip thereof, which solve the problem that a refrigerant sucked into a compressor always has a certain superheat degree, thereby effectively preventing the compressor from sucking a liquid refrigerant during the operation process, maximally extend the service life of the compressor, and improve the reliability of the whole system of the air conditioner.
According to a first aspect of the present invention, there is provided an electric heating belt control method of an air conditioner, comprising: when the air conditioner is in a starting state, comparing the detected outdoor environment temperature with one or more preset temperatures, wherein different preset temperatures are compared with the preset temperatures of different working states of different electric heating belts; and controlling the working state of the electric heating belt according to the preset temperature and the comparison result so that the refrigerant in the working state of the electric heating belt has a certain superheat degree.
Wherein, the outdoor environment temperature of the air conditioner is detected; detecting and determining whether the working state of the air conditioner is a starting state or a shutdown state; wherein, when the air conditioner is in a power-on state, the preset temperatures include a first temperature T1 and a second temperature T2, and the second temperature T2 is greater than the first temperature T1, and comparing the detected outdoor ambient temperature with one or more preset temperatures includes: comparing the outdoor ambient temperature to the first temperature T1 and/or the second temperature T2; when the air conditioner is in a shutdown state, the preset temperatures to be compared include a third temperature T3 and a fourth temperature T4, and the fourth temperature T4 is greater than the third temperature, and comparing the detected outdoor ambient temperature with one or more preset temperatures includes: comparing the outdoor ambient temperature with the first temperature T3 and/or the second temperature T4.
Wherein, according to the preset temperature and the comparison result, controlling the working state of the electric heating belt so that the refrigerant in the working state of the electric heating belt has a certain superheat degree comprises: when the outdoor ambient temperature is less than the first temperature T1 or a third temperature T3, controlling the electric heating belt to be in an on state for heating; controlling the electric heating belt to be in an off state to stop heating when the outdoor ambient temperature is greater than the second temperature T2 or a fourth temperature T4; when the outdoor ambient temperature is equal to or greater than the first temperature T1 and equal to or less than the second temperature T2, or equal to or greater than the third temperature T3 and equal to or less than the fourth temperature T4, the electric heating belt is maintained in a current operating state.
Setting four preset temperatures of the first temperature, the second temperature, the third temperature and the fourth temperature according to actual requirements; wherein the first temperature is in a range of 5-10 ℃, and/or the second temperature is in a range of 15-20 ℃, and the range and the value can be calibrated; or the range of the third temperature is 0-5 ℃, and/or the range of the fourth temperature is 10-15 ℃, and the range and the value can be calibrated.
Wherein, detecting the outdoor environment temperature of the air conditioner comprises: detecting and recording the temperature of the air conditioner in a shutdown state by using an existing temperature sensor of the air conditioner, or detecting the temperature of the air conditioner in real time in both the startup state and the shutdown state; or, detecting and recording in a power-off state by using an additionally arranged temperature sensor, or detecting in real time in both the power-on state and the power-off state; the shutdown state of the air conditioner includes: a shutdown state or a shutdown state; the on state of the air conditioner includes: an active state or a start-up state.
According to a second aspect of the present invention, there is provided an electric heating belt control apparatus of an air conditioner, comprising: the comparison module is used for comparing the detected outdoor environment temperature with one or more preset temperatures when the air conditioner is in a starting state, wherein different preset temperatures correspond to different working states of the electric heating belt; and the control module is used for controlling the working state of the electric heating belt according to the preset temperature and the comparison result so that the refrigerant in the working state of the electric heating belt has a certain superheat degree.
The detection module detects the outdoor environment temperature of the air conditioner, detects and determines whether the working state of the air conditioner is a starting state or a shutdown state; wherein, when the air conditioner is in the on state, the preset temperatures include a first temperature T1 and a second temperature T2, and the second temperature T2 is greater than the first temperature T1, and the comparing module compares the detected outdoor environment temperature with one or more preset temperatures includes: comparing the outdoor ambient temperature to the first temperature T1 and/or the second temperature T2; wherein, when the air conditioner is in a shutdown state, the preset temperatures to be compared include a third temperature T3 and a fourth temperature T4, and the fourth temperature T4 is greater than the third temperature T3, and the comparing module compares the detected outdoor environment temperature with one or more preset temperatures includes: comparing the outdoor ambient temperature to the first temperature T3 and/or the second temperature T4; and/or setting four preset temperatures of the first temperature, the second temperature, the third temperature and the fourth temperature according to actual requirements; wherein the first temperature is in a range of 5-10 ℃, and/or the second temperature is in a range of 15-20 ℃, and the range and the value can be calibrated; or the range of the third temperature is 0-5 ℃, and/or the range of the fourth temperature is 10-15 ℃, and the range and the value can be calibrated.
Wherein the control module comprises: when the outdoor ambient temperature is less than the first temperature T1 or a third temperature T3, controlling the electric heating belt to be in an on state for heating; controlling the electric heating belt to be in an off state to stop heating when the outdoor ambient temperature is greater than the second temperature T2 or a fourth temperature T4; when the external ambient temperature is equal to or greater than the first temperature T1 and equal to or less than the second temperature T2, or equal to or greater than the third temperature T3 and equal to or less than the fourth temperature T4, the electric heating belt is maintained in a current operating state.
Wherein the detection module comprises: detecting the outdoor temperature through a temperature sensor; wherein, detect the outdoor ambient temperature of air conditioner place includes: detecting and recording the temperature of the air conditioner in a shutdown state by using an existing temperature sensor of the air conditioner, or detecting the temperature of the air conditioner in real time in both the startup state and the shutdown state; or, detecting and recording in a power-off state by using an additionally arranged temperature sensor, or detecting in real time in both the power-on state and the power-off state; the shutdown state of the air conditioner includes: a shutdown state or a shutdown state; the on state of the air conditioner includes: an active state or a start-up state.
According to a third aspect of the present invention, there is provided an air conditioner including the electric heating belt control apparatus of any one of the above air conditioners.
According to the scheme of the invention, when the air conditioner is in a starting state, the outdoor environment temperature can be compared with the preset temperature, and the working state of the electric heating belt is timely and effectively controlled according to the comparison result, so that the refrigerant sucked by the compressor has a certain superheat degree to prevent the liquid refrigerant from being sucked, the corrosion and damage of parts of the compressor are avoided, the service life of the compressor in the air conditioner is further prolonged, and the working reliability of the whole air conditioner system is improved to the maximum extent.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart illustrating an embodiment of an electric heating belt control method of an air conditioner according to the present invention.
Fig. 2 shows a detailed flow chart of an embodiment of the method according to the invention.
Fig. 3 shows a schematic diagram of an embodiment of the control of the electric heating zone in the on and off states of the air conditioner in the method according to the present invention.
Fig. 4 is a block diagram illustrating the construction of an embodiment of an electric heating belt control apparatus for an air conditioner according to the present invention.
Fig. 5 is a schematic diagram illustrating an embodiment of an electric heating belt control of an air conditioner according to the related art.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The method for controlling the electric heating belt of the air conditioner according to the present invention will be described with reference to fig. 1 and 2. Fig. 1 shows a flowchart of an embodiment of an air conditioner electric heating belt control method according to the present invention, and fig. 2 shows a detailed flowchart of an embodiment of a method according to the present invention.
At step S1: when the air conditioner is in the on state, the detected outdoor environment temperature is compared with one or more preset temperatures, and the different preset temperatures can correspond to different working states of the electric heating belt.
For example, the different preset temperatures can be used as different comparison thresholds for controlling whether the electric heating belt is heated or not, whether the original heating or closing operation state is maintained or not, and the like.
In one embodiment, the air conditioner is in an on state, which may include a state where the air conditioner is powered. Specifically, the on state of the air conditioner in this embodiment may be an operating state in which the compressor is operated. In addition, the triggering condition for causing the compressor to be in the working state may specifically include: the starting process (starting state) of the air conditioner is adjusted from the shutdown state to the startup state, namely, the air conditioner is in the starting moment when the air conditioner is switched from the shutdown state to the startup state, the running state of the air conditioner and the like. Performing the detection of the outdoor ambient temperature (by T or T)Outer ringRepresented by Tn, n being an integer, such as 0, 1, 2, 3, 4 … …) with a predetermined temperature.
In one embodiment, the detection may be performed by a device having a temperature sensing function, which is disposed in an outdoor unit of the air conditioner (for example, the detection of the outdoor environment temperature is performed by using an existing outdoor environment temperature sensor for defrosting the air conditioner). The present embodiment does not specifically limit the technical means for detecting the obtained ambient temperature.
In one embodiment, the one or more preset temperatures Tn during the comparison may correspond to the operating state of the control electrical heating tape. Wherein, predetermine the temperature and include: one or more threshold temperatures for determining whether to switch the operating state of the electric heating belt may be preset according to actual conditions and requirements. In addition, the preset temperatures Tn are additionally provided with one or more threshold temperatures which are used for correspondingly controlling the working state of the electric heating belt when the air conditioner is in a starting state and are compared with the outdoor environment temperature T; there may also be one or more threshold temperatures that are compared with the outdoor ambient temperature T corresponding to the operating state of the control electric heating tape when the air conditioner is in the off state. In the power-on state or the power-off state, whether to switch the operating state of the electric heating belt can be determined by using the threshold temperatures Tn as comparison references, such as: supplying power for heating, maintaining the previous state, stopping heating when power is lost, and the like.
The preset temperature can be adjusted at any time according to different geographical positions and different seasons where the air conditioner is installed, specifically can be adjusted by a user, and also can be adjusted by professional personnel when the air conditioner leaves a factory or is sold.
Further, the preset temperature Tn may have one or more temperatures T1, T2, T3, T4 … …, and the number, value, unit, etc. of the preset temperatures may be set as required. The preset temperature is set according to actual needs, and may include season, region, climate … …, etc. of using the air conditioner, and at which temperature the refrigerant used by the air conditioner can be kept in a gaseous state.
Further, the detected outdoor environment temperature T may be compared with one or more preset temperatures Tn, including determining whether the temperature falls within a temperature range formed by a plurality of preset temperatures, and the like.
At step S2: and controlling the working state of the electric heating belt according to one or more corresponding preset temperatures and comparison results corresponding to the preset temperatures during comparison, wherein the refrigerant can always keep a certain superheat degree under the working state of the electric heating belt.
In one embodiment, the operating state of the electric heating belt may include an on state and an off state. For example, controlling the operation state of the electric heating belt may include maintaining the operation state of the electric heating belt or changing the operation state of the electric heating belt.
Wherein maintaining the operating state of the electric heating belt may include: the operation state of the electric heating belt is kept unchanged in an on state, or the operation state of the electric heating belt is kept unchanged in an off state (as shown in fig. 3, "maintain the previous operation state", that is, maintain the operation state before comparing the detected temperature and the preset temperature unchanged). Changing the operating state of the electric heating belt may include: the operating state of the electric heating belt is changed from the off state to the on state (the electric heating belt is powered on or powered on to heat as shown in fig. 3), or the operating state of the electric heating belt is changed from the on state to the off state (the electric heating belt is powered off as shown in fig. 3, the power is lost and the heating is stopped).
Further, the comparison result of step S1 may include various situations, such as: the outdoor environment temperature T is greater than the preset temperature; the outdoor environment temperature T is less than the preset temperature; the outdoor environment temperature T is equal to the preset temperature; outdoor ambient temperature T is between a range of preset temperatures, and so on. For example: four threshold temperatures of T1, T2, T3 and T4 are preset. Further, the operation of controlling the operating state of the electric heating belt according to the comparison result may be performed according to the specific comparison result of step S1.
For example: the existing control electric heating belt generally performs outdoor environment temperature T detection and T temperature value acquisition when the air conditioner is in a shutdown state. In the shutdown state, the T4 corresponds to whether the electric heating tape is disconnected to stop heating, that is, if T is greater than T4 in comparison, the heating is stopped; t3 is less than or equal to T4, T3 corresponds to whether the electric heating belt is electrically started to heat, namely if T is less than T3 in comparison, the electric heating belt is electrically heated; and if the T is in the closed interval of [ T3, T4], the electric heating of the previous electric heating belt is maintained or the heating is stopped.
The invention aims to prevent liquid refrigerant from being sucked into the compression cavity to the maximum extent, and controls the working state of the electric heating belt based on the preset temperature when the air conditioner is started. The air conditioner has the advantages that the whole system has certain heat to heat the liquid refrigerant in the starting state, and the preset temperature can be different from that in the shutdown state so as to avoid energy waste. Such as: in the starting state, T2 corresponds to whether the electric heating belt is disconnected or not to stop heating, namely if T is larger than T2 in comparison, the heating is stopped; t1 is less than or equal to T2, T1 corresponds to whether the electric heating belt is electrically started to heat, namely if T is less than T1 in comparison, the electric heating belt is electrically heated; and if the T is in the closed interval of [ T1, T2], the electric heating of the previous electric heating belt is maintained or the heating is stopped.
According to the technical scheme in the embodiment of the invention, when the air conditioner is in a starting state, the collected outdoor environment temperature T can be compared with one or more preset temperatures Tn corresponding to working states (such as starting heating or stopping heating) related to the electric heating belt, and the working states of the electric heating belt can be timely and effectively adjusted according to the conditions of the preset temperatures and the comparison result of the outdoor environment temperature T, so that the refrigerant sucked by the compressor is ensured to have a certain superheat degree (namely the refrigerant is in a gaseous state rather than a liquid state) all the time in the starting state of the air conditioner, the liquid refrigerant is prevented from being sucked into the compression cavity to the greatest extent possible, the compressor is prevented from being corroded and damaged, the service life of the compressor in the air conditioner is prolonged, and the working reliability of the whole air conditioner system is improved to the greatest extent.
The method for controlling the electric heating belt of the air conditioner according to the present invention is further described with reference to fig. 2, which is a more detailed embodiment based on fig. 1.
Step S21: the outdoor ambient temperature T is detected.
In one embodiment, the outdoor ambient temperature T may be detected by a device having a temperature sensing function disposed in an outdoor unit of the air conditioner, specifically: the real-time temperature data T can be obtained by real-time detection in the starting state (after the air conditioner is in the starting state) or the shutdown state of the existing temperature sensor or the additionally arranged temperature sensor of the air conditioner, and can also be obtained and recorded by detection in the shutdown state of the air conditioner by using the known temperature sensor.
Further, see the detailed description of step S1.
Step S22: the method comprises the steps of detecting the working state of the air conditioner, and comparing the detected outdoor environment temperature T with preset temperatures of one or more working states corresponding to different electric heating bands when the air conditioner is detected to be in the starting state (including the state that the starting state is switched from the stopping state to the starting state, namely the starting state or the running state).
In one embodiment, the preset temperature Tn includes: the first temperature T1 and the second temperature T2 are threshold temperatures for comparison. Wherein the second temperature T2 is greater than the first temperature T1;
in one embodiment, comparing the detected outdoor ambient temperature T with a preset temperature Tn comprises: the outdoor ambient temperature T is compared with the first temperature T1 and/or the second temperature T2 to determine if it is less than the lower threshold temperature T1, falls within the interval of two threshold temperatures, and is greater than the upper threshold temperature T2.
Further, in step S22, when it is detected that the air conditioner is in the shutdown state (including the process of switching from the power-on state to the power-off state, i.e., being shut down, or indeed being in the shutdown state), the detected outdoor ambient temperature T is compared with the preset temperatures corresponding to the operating states of the different electric heating zones, except that the preset temperature Tn at this time includes the third temperature T3, the fourth temperature T4, and the T3 is less than the T4, and it is determined whether the T is less than the T3, greater than the T4, or between the T3 and the T4.
Further, one of step 23, step 24 or step S25 is selected to be performed according to the comparison result of the outdoor ambient temperature and the preset temperature. For example:
(1) when the outdoor ambient temperature T is less than the first lower temperature T1, it indicates that the outdoor ambient temperature T is low, and even though the air conditioner may have liquid refrigerant in the operating state, the compressor needs to be heated to increase the pressure in the compression cavity and prevent the refrigerant stored in the outdoor unit from being sucked into the compressor, then step S23 is performed.
Similarly, if the power-off state is detected, T is less than the lower third temperature T3, step S23 is also executed.
Step 23: and controlling the electric heating belt to be in an opening state.
For example: if the electric heating belt is in an opening state at present, keeping the state of the electric heating belt unchanged and still in the opening state; and if the electric heating belt is in a closed state at present, switching the working state of the electric heating belt from the closed state to an open state. Thereby heating the compressor by the electric heating belt.
(2) When the outdoor ambient temperature T is greater than the second higher temperature T2, it indicates that the outdoor ambient temperature T is higher, there is no liquid refrigerant (for example, the second temperature T2 is higher than the threshold temperature of refrigerant vaporization and evaporation), the compressor does not need to be heated any more, the pressures inside and outside the compression cavity are relatively balanced, the electric heating tape can be disconnected to save power, and then step S24 is performed.
Similarly, if the power-off state is detected, T is greater than the fourth higher temperature T4, step S24 is also executed.
Step S24: and controlling the electric heating belt to be in a closed state.
For example: if the electric heating belt is in a closed state at present, keeping the state of the electric heating belt unchanged and still being in the closed state; if the electric heating belt is in an opening state at present, the working state of the electric heating belt is switched, and the opening state is switched to a closing state.
(3) When the outdoor ambient temperature T is equal to or higher than the first temperature T1 and equal to or lower than the second temperature T2 (in the region between the lower threshold temperature and the higher threshold temperature [ T1, T2]), it indicates that the refrigerant sucked into the compressor can be overheated to a certain extent at the outdoor ambient temperature T at that time, and it is sufficient that the operation state of the electric heating belt at that time is not required to be adjusted, that is, the state before the temperature comparison is performed is maintained, that is, step S25 is performed.
Similarly, if the power-off state is detected, if T is greater than or equal to the third temperature T3 and less than or equal to the fourth temperature T4 (i.e. within the interval [ T3, T4 ]), step S25 is also executed.
Step S25: and keeping the electric heating belt in the current working state.
For example: when the outdoor environment temperature T is in the interval between high and low temperatures, the outdoor environment temperature T is in a transition state of temperature change, and if the electric heating belt is in a closed state at present and the refrigerant cannot be condensed into liquid, the state of the electric heating belt is kept unchanged and is still in the closed state; if the electric heating belt is in an open state at present, the refrigerant is necessarily in a gaseous state, and the internal pressure is sufficient, the state of the electric heating belt is kept unchanged and is still in the open state.
In addition, in this embodiment, the electric heating band has two working states, namely a closed state and an open state, and since the working state of the electric heating band is controlled according to the comparison result between the outdoor environment temperature and the preset temperature, and since the temperature change has continuity, the set preset temperature (relatively high temperature and relatively low temperature) can form a temperature interval without affecting the superheat degree, and the refrigerant can always keep a certain superheat degree in the temperature interval, the previous working state can be maintained without changing the current working state of the electric heating band, so that an excessive temperature interval is provided for the change of the working state of the subsequent electric heating band, the frequent state switching is avoided, and the service life of the equipment parts is prolonged.
Alternatively, since the outdoor ambient temperature T may vary linearly, the steps S23, S24 and S25 may be performed in sequence, and the specific order of performing may be adjusted according to the variation of the comparison result between the outdoor ambient temperature T and the preset temperature.
In fact, the outdoor ambient temperature T is always a varying process. The method of the present invention controls whether the electric heating belt is heated or not, and can effectively adapt to the actual use condition of the air conditioner. For example:
the outdoor environment temperature T is changed from high to low, and in an alternative mode, the outdoor environment temperature T is greater than the second temperature T2 at a certain time A, and the electric heating belt is controlled to be in a closed state. At the next time a +1, the outdoor ambient temperature T drops to a temperature less than the second temperature T2 but greater than the first temperature T1, and the electric heating tape is kept in the current working state, that is, the electric heating tape is kept in the closed state, and at this time, the refrigerant is actually still overheated to some extent or cannot be sucked into the liquid refrigerant by the compressor. Over time, the outdoor ambient temperature T continues to drop, falling below the first temperature T1. Due to the low T of the outdoor environment temperature, the electric heating belt needs to be controlled to be in the on state, that is, the electric heating belt is switched from the off state to the on state.
On the contrary, the execution manner when the outdoor environment temperature T changes from low to high is just opposite to the execution manner in the above example, and is not described again here. Similarly, the manner of execution when the outdoor environment temperature T is varied back and forth between high and low may also refer to the above example.
In one embodiment, in order to ensure the service life of the compressor to the maximum extent, the value range of the first temperature T1 may be set according to actual detection, experiments, experience, and the like, and is preferably 5 to 10 ℃. That is, once the outdoor environment temperature T is detected to be lower than the first temperature T1, the electric heating belt can be immediately started to heat the compressor, so that the compressor can be effectively prevented from sucking more refrigerants, and the damage to the parts of the compressor is reduced. The specific selected value of the first temperature can be determined according to actual conditions (including actual needs and environments). The first temperature T1 exists over a calibrated range.
In addition, the value range of the second temperature T2 may be set according to actual detection, experiments, experience, and the like, and is preferably 15 to 20 ℃. Namely, once the outdoor environment temperature T is detected to be higher than the second temperature T2, the liquid refrigerant does not exist due to the higher outdoor environment temperature, the compressor is not required to be heated any more, the pressure inside and outside the compression cavity is relatively balanced, and the electric heating belt can be disconnected, so that the electricity is saved. The specific selected value of the second temperature can be determined according to actual conditions. The second temperature T2 has a certain calibration range.
In the embodiment of the invention, under the starting state of the air conditioner, the working state of the electric heating belt is effectively controlled in time by detecting the outdoor environment temperature in real time and comparing the outdoor environment temperature with the preset temperature, so that the liquid refrigerant is effectively prevented from being sucked in the running process of the compressor, the refrigerant sucked in by the compressor has a certain superheat degree, the compressor is ensured to be in a working environment with moderate temperature, the service life of each part of the compressor is prolonged to the maximum extent, and the running reliability of the whole machine is improved.
Further, the method of the present invention for controlling the electric heating belt of the air conditioner will be further described with reference to the schematic diagram of the method of the present invention shown in fig. 3 for controlling the electric heating belt of the air conditioner in the on/off state of the air conditioner.
In one embodiment, the detection determines the current operating state of the air conditioner, such as whether the air conditioner is in an off state or an on state, where the on state includes an air conditioner operating state or a startup state that is switched from the off state to the on state.
When the detection determines that the air conditioner is in the on state (running, starting), the outdoor environment temperature T detected by the temperature detection device such as a sensor is utilizedOuter ring(i.e., T) is compared to a preset temperature Tn.
Wherein, the temperature can be preset to include: the third temperature T3 and the fourth temperature T4 and T4 are greater than T3, and the second temperature T2 and the first temperature T1 and T2 are greater than T1.
When T isOuter ring<At T1, the outdoor temperature is low, the compressor needs to be heated, the pressure in the compression chamber is increased, the refrigerant stored in the external machine is prevented from being sucked into the compressor, and the electric heating belt is turned on.
When T isOuter ring>At T2, the ambient outdoor temperature is high, the compressor no longer needs to be heated, the pressure inside and outside the compression chamber is relatively balanced, and the electric heating belt is disconnected.
When T1 is less than or equal to TOuter ringWhen the temperature is less than or equal to T2, the working state of the electric heating belt does not need to be adjusted, so that the electric heating belt maintains the previous running state.
In addition, when the detection determines that the air conditioner is in a shutdown state (the shutdown state includes switching of the compressor from the power-on/running state to the shutdown state, i.e., a shutdown process or a standby state), the outdoor ambient temperature T detected by the temperature detection means such as the sensor may also be compared with a preset temperature Tn, wherein the preset temperature includes a third temperature T3 and a fourth temperature T4, and T4 is greater than T3.
When T isOuter ring<At T3, the outdoor temperature is low, the compressor needs to be heated, the pressure in the compression chamber is increased, the refrigerant stored in the external machine is prevented from being sucked into the compressor, and the electric heating belt is turned on.
When T isOuter ring>At T4, the ambient outdoor temperature is high, the compressor no longer needs to be heated, the pressure inside and outside the compression chamber is relatively balanced, and the electric heating belt is disconnected.
When T3 is less than or equal to TOuter ringWhen the temperature is less than or equal to T4, the working state of the electric heating belt does not need to be adjusted, so that the electric heating belt maintains the previous running state.
In one example, the third temperature T3 may be set to have a value in a range of 0 to 5 ℃ and the fourth temperature T4 may have a value in a range of 10 to 15 ℃ according to actual tests, experiments, experiences and the like, and similar to the foregoing descriptions of T1 and T2, a certain calibration range exists for T4 and T3.
The air conditioner electric heating belt control device corresponding to the control method of the present invention will be described below with reference to a block diagram schematically showing the structure of an embodiment of the air conditioner electric heating belt control device according to the present invention in fig. 4. In one embodiment, the air conditioner electric heating belt control apparatus may include at least:
the comparing module 31 is configured to compare the detected outdoor environment temperature with a preset temperature when the air conditioner is in the on state. For example, when the air conditioner is in the on state, the detected outdoor ambient temperature is compared with one or more preset temperatures corresponding to different operating states of the electric heating belt. Specifically, the operating state of the air conditioner may be detected, and when it is detected that the air conditioner is switched from the off state to the on state (start state) or the operating state, the detected outdoor ambient temperature T may be compared with a preset temperature corresponding to the operating state of one or more different electric heating bands. The specific functions and processes of the module 31 are described in steps S1 and S22.
And the control module 32 is used for controlling the working state of the electric heating belt according to the comparison result so that the refrigerant in the working state of the electric heating belt has a certain superheat degree. Specifically, the operating state of the electric heating belt may be controlled according to one or more corresponding preset temperatures and the comparison result corresponding to the comparison. The specific functions and processes of the module 32 are described in steps S2, S23, S24, and S25.
And a detection module 33 for detecting the outdoor ambient temperature. The specific functions and processes of the module 33 are described in steps S1 and S21. In addition, the detecting module 33 is also used for detecting the working state of the air conditioner in real time and determining whether the air conditioner is in the on state or the off state.
For example, the preset temperature includes a first temperature and a second temperature, the second temperature being higher than the first temperature; the comparison module 31 is configured to compare the outdoor ambient temperature with the first temperature and/or the second temperature. Furthermore, in the power-on state, the control module 32 controls the electric heating belt to be in the on state when the outdoor environment temperature is lower than the first temperature; when the outdoor environment temperature is higher than the second temperature, controlling the electric heating belt to be in a closed state; and when the outdoor environment temperature is greater than or equal to the first temperature and less than or equal to the second temperature, keeping the electric heating belt in the current working state. Wherein the first temperature is 5-10 deg.C, and the second temperature is 15-20 deg.C.
The control process in the shutdown state may refer to the process described in the foregoing control method in the shutdown state, and is not described herein again.
Since the processing and functions implemented by the apparatus of this embodiment substantially correspond to the foregoing embodiments of the method and the principle examples of the application scenarios shown in fig. 1 to fig. 3, reference may be made to the related descriptions in the foregoing embodiments for details which are not described in the description of this embodiment, and further description is not repeated here.
In an embodiment, the invention provides an air conditioner, which includes the aforementioned air conditioner electric heating belt control device and executes the aforementioned air conditioner electric heating belt control method.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (10)
1. A method for controlling an electric heating belt of an air conditioner is characterized by comprising the following steps:
when the air conditioner is in a starting state, comparing the detected outdoor environment temperature with one or more preset temperatures, wherein different preset temperatures correspond to different working states of the electric heating belt;
and controlling the working state of the electric heating belt according to the preset temperature and the comparison result so that the refrigerant in the working state of the electric heating belt has a certain superheat degree.
2. The method of claim 1, further comprising:
detecting the outdoor environment temperature of the air conditioner;
detecting and determining whether the working state of the air conditioner is a starting state or a shutdown state;
wherein, when the air conditioner is in a power-on state, the preset temperatures include a first temperature T1 and a second temperature T2, and the second temperature T2 is greater than the first temperature T1, and comparing the detected outdoor ambient temperature with one or more preset temperatures includes: comparing the outdoor ambient temperature to the first temperature T1 and/or the second temperature T2;
wherein, when the air conditioner is in a shutdown state, the preset temperatures that are compared include a third temperature T3, a fourth temperature T4, and the fourth temperature T4 is greater than the third temperature, and comparing the detected outdoor ambient temperature with one or more preset temperatures includes: comparing the outdoor ambient temperature with the first temperature T3 and/or the second temperature T4.
3. The method as claimed in claim 2, wherein the controlling the operation state of the electric heating belt according to the preset temperature and the comparison result so that the refrigerant in the operation state of the electric heating belt has a certain superheat degree comprises:
when the outdoor ambient temperature is less than the first temperature T1 or a third temperature T3, controlling the electric heating belt to be in an on state for heating;
controlling the electric heating belt to be in an off state to stop heating when the outdoor ambient temperature is greater than the second temperature T2 or a fourth temperature T4;
when the outdoor ambient temperature is equal to or greater than the first temperature T1 and equal to or less than the second temperature T2, or equal to or greater than the third temperature T3 and equal to or less than the fourth temperature T4, the electric heating belt is maintained in a current operating state.
4. The method of claim 2, further comprising:
setting four preset temperatures of the first temperature, the second temperature, the third temperature and the fourth temperature according to actual requirements;
wherein the first temperature is in a range of 5-10 ℃, and/or the second temperature is in a range of 15-20 ℃, and the range and the value can be calibrated; or the range of the third temperature is 0-5 ℃, and/or the range of the fourth temperature is 10-15 ℃, and the range and the value can be calibrated.
5. The method as claimed in claim 2, wherein said detecting the outdoor ambient temperature of the air conditioner comprises:
detecting and recording the temperature of the air conditioner in a shutdown state by using an existing temperature sensor of the air conditioner, or detecting the temperature of the air conditioner in real time in both the startup state and the shutdown state;
or,
detecting and recording in a power-off state by using an additional temperature sensor, or detecting in real time in both the power-on state and the power-off state;
the shutdown state of the air conditioner includes: a shutdown state or a shutdown state;
the on state of the air conditioner includes: an active state or a start-up state.
6. An electric heating belt control apparatus of an air conditioner, comprising:
the comparison module is used for comparing the detected outdoor environment temperature with one or more preset temperatures when the air conditioner is in a starting state, wherein different preset temperatures correspond to different working states of the electric heating belt;
and the control module is used for controlling the working state of the electric heating belt according to the preset temperature and the comparison result so that the refrigerant in the working state of the electric heating belt has a certain superheat degree.
7. The apparatus of claim 6, further comprising:
the detection module detects the outdoor environment temperature of the air conditioner, detects and determines whether the working state of the air conditioner is a starting state or a shutdown state;
wherein, when the air conditioner is in the on state, the preset temperatures include a first temperature T1 and a second temperature T2, and the second temperature T2 is greater than the first temperature T1, and the comparing module compares the detected outdoor environment temperature with one or more preset temperatures includes: comparing the outdoor ambient temperature to the first temperature T1 and/or the second temperature T2;
wherein, when the air conditioner is in a shutdown state, the preset temperatures to be compared include a third temperature T3 and a fourth temperature T4, and the fourth temperature T4 is greater than the third temperature T3, and the comparing module compares the detected outdoor environment temperature with one or more preset temperatures includes: comparing the outdoor ambient temperature to the first temperature T3 and/or the second temperature T4;
and/or the presence of a gas in the gas,
setting four preset temperatures of the first temperature, the second temperature, the third temperature and the fourth temperature according to actual requirements; wherein the first temperature is in a range of 5-10 ℃, and/or the second temperature is in a range of 15-20 ℃, and the range and the value can be calibrated; or the range of the third temperature is 0-5 ℃, and/or the range of the fourth temperature is 10-15 ℃, and the range and the value can be calibrated.
8. The apparatus of claim 7, wherein the control module comprises:
when the outdoor ambient temperature is less than the first temperature T1 or a third temperature T3, controlling the electric heating belt to be in an on state for heating;
controlling the electric heating belt to be in an off state to stop heating when the outdoor ambient temperature is greater than the second temperature T2 or a fourth temperature T4;
when the external ambient temperature is equal to or greater than the first temperature T1 and equal to or less than the second temperature T2, or equal to or greater than the third temperature T3 and equal to or less than the fourth temperature T4, the electric heating belt is maintained in a current operating state.
9. The apparatus of claim 7, wherein the detection module comprises:
detecting the outdoor temperature through a temperature sensor;
wherein, detect the outdoor ambient temperature of air conditioner place includes:
detecting and recording the temperature of the air conditioner in a shutdown state by using an existing temperature sensor of the air conditioner, or detecting the temperature of the air conditioner in real time in both the startup state and the shutdown state;
or,
detecting and recording in a power-off state by using an additional temperature sensor, or detecting in real time in both the power-on state and the power-off state;
the shutdown state of the air conditioner includes: a shutdown state or a shutdown state;
the on state of the air conditioner includes: an active state or a start-up state.
10. An air conditioner characterized by comprising the electric heating belt control device of the air conditioner as claimed in claims 6 to 9.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255069A (en) * | 2017-07-07 | 2017-10-17 | 广东美的暖通设备有限公司 | Compressor control method, compressor and heat pump |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201129820Y (en) * | 2007-09-04 | 2008-10-08 | 珠海格力电器股份有限公司 | Air conditioner |
| CN102661267A (en) * | 2012-05-02 | 2012-09-12 | 青岛海尔空调电子有限公司 | Control method and system of compressor electric heating band in air conditioner |
| CN104110367A (en) * | 2013-04-22 | 2014-10-22 | 合肥美的暖通设备有限公司 | Low-pressure-chamber compressor system and superheat degree control method thereof and outdoor unit |
| CN104564611A (en) * | 2013-10-22 | 2015-04-29 | 珠海格力电器股份有限公司 | Method and device for controlling electric heating belt of compressor |
| CN105508201A (en) * | 2015-11-30 | 2016-04-20 | 广东美的暖通设备有限公司 | Control method, controller and control system for electric heating belt in air conditioner compressor |
| CN105823279A (en) * | 2016-04-11 | 2016-08-03 | 广东美的暖通设备有限公司 | Control method for starting or stopping of electric heating band of oil separator of air-conditioner |
-
2016
- 2016-08-17 CN CN201610682272.3A patent/CN106288569A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201129820Y (en) * | 2007-09-04 | 2008-10-08 | 珠海格力电器股份有限公司 | Air conditioner |
| CN102661267A (en) * | 2012-05-02 | 2012-09-12 | 青岛海尔空调电子有限公司 | Control method and system of compressor electric heating band in air conditioner |
| CN104110367A (en) * | 2013-04-22 | 2014-10-22 | 合肥美的暖通设备有限公司 | Low-pressure-chamber compressor system and superheat degree control method thereof and outdoor unit |
| CN104564611A (en) * | 2013-10-22 | 2015-04-29 | 珠海格力电器股份有限公司 | Method and device for controlling electric heating belt of compressor |
| CN105508201A (en) * | 2015-11-30 | 2016-04-20 | 广东美的暖通设备有限公司 | Control method, controller and control system for electric heating belt in air conditioner compressor |
| CN105823279A (en) * | 2016-04-11 | 2016-08-03 | 广东美的暖通设备有限公司 | Control method for starting or stopping of electric heating band of oil separator of air-conditioner |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255069A (en) * | 2017-07-07 | 2017-10-17 | 广东美的暖通设备有限公司 | Compressor control method, compressor and heat pump |
| 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 |
| CN107345564A (en) * | 2017-08-17 | 2017-11-14 | 青岛雷沃工程机械有限公司 | A kind of transmission system of wheel loader energy saver |
| CN110686435A (en) * | 2018-07-04 | 2020-01-14 | 青岛海尔空调电子有限公司 | Control method and control device for heating belt of fixed-frequency compressor |
| CN109140720A (en) * | 2018-07-25 | 2019-01-04 | 南京天加环境科技有限公司 | A kind of control method of multi-connected machine crankshaft heating band |
| CN109556235A (en) * | 2018-10-22 | 2019-04-02 | 珠海格力电器股份有限公司 | Electric heating belt control method and device, air conditioning equipment and storage medium |
| CN109682018A (en) * | 2018-12-27 | 2019-04-26 | 广东美的暖通设备有限公司 | The control method of heating system, the control device of heating system and air conditioner |
| CN109990394A (en) * | 2019-04-15 | 2019-07-09 | 珠海格力电器股份有限公司 | Control method of compressor oil temperature, heating device and air conditioner |
| CN111664555A (en) * | 2020-05-06 | 2020-09-15 | 海信（山东）空调有限公司 | Air conditioner |
| CN111664555B (en) * | 2020-05-06 | 2021-09-24 | 海信（山东）空调有限公司 | Air conditioner |
| CN114738243A (en) * | 2022-03-31 | 2022-07-12 | 青岛海尔空调电子有限公司 | Compressor winding heating control method, compressor and air conditioner outdoor unit |
| CN115325654A (en) * | 2022-08-10 | 2022-11-11 | 珠海格力电器股份有限公司 | Refrigerant migration control method and air conditioning unit |
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Application publication date: 20170104 |