CN115325661A - Control method of electric heating belt, air conditioner and computer readable storage medium - Google Patents
Control method of electric heating belt, air conditioner and computer readable storage medium Download PDFInfo
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- CN115325661A CN115325661A CN202210989673.9A CN202210989673A CN115325661A CN 115325661 A CN115325661 A CN 115325661A CN 202210989673 A CN202210989673 A CN 202210989673A CN 115325661 A CN115325661 A CN 115325661A
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- 238000005485 electric heating Methods 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000011897 real-time detection Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/873—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling refrigerant heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The inventionProvided are a control method of an electric heating belt, an air conditioner, and a computer-readable storage medium, including: step S1: starting an air conditioner; step S2: real-time detection comprises the initial temperature T of a coil pipe at the bottom of a heat exchanger of an outdoor unit Initial coil Initial temperature T of air inlet of indoor unit Initial air-out Running temperature T of bottom coil of outdoor unit heat exchanger Coil running And the running temperature T of the air inlet of the indoor unit Air-out operation (ii) a And step S3: judgment of T Initial coil And T Coil pipe operation Whether the difference is greater than a first preset temperature T 0 If yes, executing step S4; and step S4: determine T Initial air-out And T Air-out operation Whether the difference is greater than a first preset temperature T 0 If yes, executing step S5; step S5: obtaining a current T Coil pipe operation Whether or not it is less than the second preset temperature T 1 If yes, starting an electric heating belt to defrost; by the control method, the operation mode of the electric heating belt can be accurately controlled, the use comfort of the air conditioner and the operation reliability of the electric heating belt are improved, and the power loss is reduced.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a control method of an electric heating belt, an air conditioner and a computer readable storage medium.
Background
When the air conditioner operates in heating mode, when the outdoor environment temperature is low, water vapor in the air can form condensed water on the outdoor heat exchanger to be separated out. When the condensed water is lower than 0 ℃, the condensed water gradually frosts, the heat exchange quantity of the heat exchanger is seriously influenced, and the service performance of the air conditioner is influenced.
At present, an electric heating belt is additionally arranged on a chassis of an air conditioner for melting ice blocks on the chassis, accelerating the drainage of the chassis and reducing the reduction of heat exchange quantity of a heat exchanger caused by the fact that the chassis is frozen and the ice blocks are accumulated to the heat exchanger. However, the control mode of the electric heating belt of the chassis of the existing air conditioner is rough: the method is directly related to the operation mode of the air conditioner, when the air conditioner is in a heating state, no matter whether the chassis is frozen or not, the electric heating belt of the chassis is forcibly started, so that the air conditioner consumes a large amount of work and the service life of the electric heating belt is influenced, and therefore, the method has important significance in researching how to control the working state of the electric heating belt of the chassis of the air conditioner.
In patent CN103982976A, it is mentioned that a thermal bulb is disposed on an output tube of an outdoor condenser, and the thermal bulb is used for monitoring the temperature of the output tube of the outdoor condenser after the air conditioner starts a heating function, and when the monitored temperature reaches a set value, a heating belt on a chassis of the outdoor unit is opened to defrost, and to some extent, the outdoor temperature is monitored to some extent, but the temperature of the output tube of the condenser still has a certain deviation from the actual temperature, in patent CN106352443A, it relates to that a chassis electric heating element is disposed at the bottom of the condenser, and the chassis electric heating element is located above the chassis of the outdoor unit, so that when the air conditioner heats and defrosts under a working condition with a low outdoor temperature, the chassis electric heating element heats and melts the frost on the chassis of the condenser and the chassis of the outdoor unit quickly and completely, and a compressor operates at a frequency lower than a preset frequency during defrosted, thereby reducing the problem that the air conditioner consumes a large amount of work to some extent.
Disclosure of Invention
In view of the above, the present invention aims to provide a control method for an electric heating belt, an air conditioner, and a computer readable storage medium, so as to solve the problems that in the prior art, the performance of a heat exchanger is affected due to the icing of a chassis, and the increased control method for the electric heating belt is not accurate enough, so that a large amount of work loss is easily caused, and the service life of the electric heating belt is affected; therefore, the opening of the working state of the electric heating belt can be effectively and accurately controlled.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention relates to a control method of an electric heating belt, an air conditioner and a computer readable storage medium,
the control method comprises the following steps:
step S1: starting an air conditioner;
step S2: real-time detection comprises the initial temperature T of the coil pipe at the bottom of the heat exchanger of the outdoor unit Initial coil Initial temperature T of air inlet of indoor unit Initial air-out Outdoor unitOperating temperature T of bottom coil of heat exchanger Coil pipe operation And the operating temperature T of the air inlet of the indoor unit Air-out operation ；
And step S3: judgment of T Initial coil And T Coil pipe operation Whether the difference is greater than a first preset temperature T 0 If yes, executing step S4;
and step S4: judgment of T Initial air-out And T Air-out operation Whether the difference is greater than a first preset temperature T 0 If yes, executing step S5;
step S5: obtaining a current T Coil running Whether it is less than the second preset temperature T 1 If yes, starting an electric heating belt to defrost;
through multiple detection and judgment of the control method of the chassis electric heating belt, different detection and judgment methods are selected for different outdoor environment temperatures, the coil temperature and the indoor unit air outlet temperature in operation are monitored in real time, and the electric heating belt can be effectively and accurately controlled to be opened, so that the comfort of an air conditioner is improved, the reliability of the control method of the electric heating belt is ensured, the service life of the chassis electric heating belt is prolonged, and the customer satisfaction can be improved.
Further, step S1 includes:
step S11: in the heating mode, the air conditioner is started;
step S12: real-time detection of outdoor ambient temperature T Outer ring ；
Step S13: according to the outdoor ambient temperature T Outer ring Adjusting the preset value in the heating mode, and executing the step S2;
the outdoor environment temperature is detected in the step S1, the size or the range of the preset value is adjusted in real time through the outdoor environment temperature, the control accuracy can be effectively improved, the preset value can be adjusted in real time according to the change of the outdoor environment, the control on the electric heating belt is further enhanced, the energy loss is reduced, the service life of the electric heating belt is prolonged, and the working performance of the electric heating belt is enhanced.
Further, the preset values include T 0 、T 1 A preset time t, compressor frequency 1 % and a 2 % sum fan rotationSpeed of change w revolutions per minute, a 1 % and a 2 % is the ratio of the frequency of the compressor after change to the frequency of the current running compressor, and w revolutions per minute is the speed of the change of the rotating speed of the fan; t is the working time of the air conditioner when the detection judgment is preset; in the heating mode, T 0 Greater than T 1 ，a 1 Is greater than a 2 ；T Initial coil When the air conditioner is started and initially runs for a first rated time, the temperature value of a coil pipe of a heat exchanger of an outdoor unit is measured; t is a unit of Coil pipe operation Detecting the temperature of the coil pipe of the heat exchanger of the outdoor unit once every second rated time after the air conditioner is started and operates for the first rated time; t is Initial air-out The temperature value of the air outlet of the indoor unit is obtained when the air conditioner is started and initially runs for a first rated time; t is a unit of Air-out operation Detecting the air outlet temperature once every second rated time after the air conditioner is started and operates for the first rated time; the electric heating belt can be effectively controlled to operate by selecting and setting the preset value, the detection and judgment of the actual environment are enhanced, the defrosting operation is lower under the condition of severe environment, the working efficiency of the heat exchanger is improved, meanwhile, the program for controlling the electric heating belt to open is more reliable, and further, the practicability of the control method is enhanced.
Further, step S3 includes:
step S31: determination of T Initial coil And T Coil running Whether the difference is greater than T 0 If yes, executing the step S32, if not, returning to the step S31 after maintaining the current running preset time t;
step S32: adjusting the current compressor frequency to a of the compressor frequency 1 ％；
Step S33: adjusting the rotating speed of the fan at the speed of w revolutions per minute, and executing the step S4 after a preset time t;
step S3 comprises the step of comparing the coil temperature of the outdoor unit heat exchanger chassis, T Initial coil The temperature at the first rated time after the air conditioner is started is favorable for reducing the condition of larger detection error caused by different air conditioner starting time and uneven running working state of the heat exchanger, and further, the coil pipe is detected in real timeThe operation temperature of the electric heating belt control method improves the reliability of the electric heating belt control method and enhances the operation stability of the electric heating belt control method.
Further, step S4 includes:
step S41: determination of T Initial air-out And T Air-out operation Whether the difference is greater than T 0 If yes, executing step S42, if no, after maintaining the current status running for the preset time t, returning to step S41;
step S42: adjusting the current compressor frequency to a of the compressor frequency 2 ％；
Step S43: adjusting the rotating speed of the fan at the speed of w revolutions per minute, and executing the step S5 after a preset time t;
in the step included in the step S4, the temperature rating time of the air outlet of the indoor unit is further compared before and after, so that the judgment of the current frosting condition of the outdoor unit can be improved, the accurate control of the opening time of the electric heating belt is facilitated, the loss of electric energy is reduced, the electric energy is saved, and the comfort of a user is improved.
Further, step S5 includes:
step S51: judging the temperature T of the bottom coil of the current heat exchanger Coil pipe operation Whether or not less than T 1 If yes, go to step S52; if not, returning to the step S51 after the current operation is maintained for the preset time t;
step S52: and opening the electric heating belt of the chassis.
In the step included in the step S5, the current operation temperature of the coil pipe at the bottom of the outdoor unit heat exchanger is measured again, so that the measurement accuracy can be effectively improved, the control of the electric heating belt is improved, further, the reliability of the electric heating belt control method is ensured, and meanwhile, the situation that the electric heating belt is started in advance due to undetected temperature change at the coil pipe within the detection time, energy loss is caused, and the comfort of a user is influenced is prevented.
An air conditioner comprising a computer-readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement the control method of the electric heating belt.
A computer-readable storage medium, which stores a computer program that, when read and executed by a processor, implements the control method of an electric heating belt.
Compared with the prior art, the control method of the electric heating belt, the air conditioner and the computer readable storage medium have the following beneficial effects:
by the control method of the electric heating belt, the air conditioner and the computer readable storage medium, the running mode of the chassis electric heating belt can be accurately controlled according to the outdoor environment temperature, the temperature of the bottom coil of the outdoor heat exchanger and the indoor air outlet temperature.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments 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 schematic diagram of a procedure for controlling an electric heating belt in a heating mode.
Detailed Description
The inventive concepts of the present disclosure will be described hereinafter using terms commonly employed by those skilled in the art to convey the substance of their work to others skilled in the art. These inventive concepts may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The present embodiment is directed to an air conditioner, and the whole structure is composed of a chassis, a condenser, an outdoor unit, and an indoor unit, as in the conventional air conditioner.
In the prior art, when the air conditioner operates in heating, when outdoor environment temperature is lower, vapor in the air can form the comdenstion water on the off-premises station heat exchanger and precipitate, when the comdenstion water is less than 0 ℃, can frost gradually, present air conditioner factory can increase an electric heating tape on the air conditioner chassis for melt the chassis ice-cube, accelerate the chassis drainage, reduce because the chassis freezes, the ice-cube is piled up to the heat exchanger, lead to the heat exchanger heat transfer volume to descend, but the control mode of current air conditioner chassis electric heating tape is comparatively crude: the air conditioner is directly associated with the running mode of the air conditioner, when the air conditioner is in a heating state, no matter whether the chassis is frozen or not, the electric heating belt of the chassis is forcibly opened, so that the air conditioner loses a large amount of work, and the service life of the electric heating belt is influenced.
The problem that in the prior art, due to the fact that the performance of a heat exchanger is affected by the icing of a chassis, an added electric heating belt control method is not accurate enough is solved; the embodiment provides a control method of an electric heating belt, an air conditioner and a computer readable storage medium, wherein the control method comprises the steps of setting a temperature sensing device, wherein the temperature sensing device is used for respectively detecting the temperature of an outdoor environment dry bulb, the temperature of a heat exchanger coil and the air outlet temperature of an indoor unit of the air conditioner; through the detected outdoor environment temperature and the temperature of the outdoor unit heat exchange coil, the electric heating starting of the base plate of the air conditioner, the running frequency of the compressor, the rotating speed of the indoor fan and the rotating speed of the outdoor fan are adjusted in real time, the frosting of the heat exchanger is reduced, and the heat exchange quantity of the air conditioner is improved.
The temperature sensing device comprises a first temperature sensing device, a second temperature sensing device and a third temperature sensing device, the first temperature sensing device is arranged at an air inlet of the outdoor unit and used for detecting the actual temperature of an outdoor environment dry ball in real time, the second temperature sensing device is arranged at a coil pipe position at the bottom of the heat exchanger and used for detecting the temperature of the coil pipe of the heat exchanger in real time, and the third temperature sensing device is arranged at an air outlet of the indoor unit and used for detecting the air outlet temperature of the indoor unit in real time.
The outdoor unit fan blade rotates to generate negative pressure, outdoor air is sucked into an outdoor unit air cavity of the air conditioner immediately, the first temperature sensing device is arranged at an outdoor unit air inlet, and when the outdoor air flows into the outdoor unit air cavity, the outdoor air flows through the first temperature sensing device, so that the actual temperature of an outdoor environment dry bulb can be detected in time; in addition, the position of the coil pipe at the bottom of the heat exchanger is selected as the position of the second temperature sensing device, when the air conditioner runs in a heating mode, because the heat exchange air quantity at the bottom of the heat exchanger is the minimum, the frosting is most likely to happen, therefore, the temperature of the coil pipe at the position is monitored in real time, the frosting situation of the outdoor unit heat exchanger can be judged most visually, the third temperature sensing device is installed at the outlet air of the indoor unit to detect the actual air outlet temperature of the air conditioner, the temperature value needing to be detected can be more accurate, the control accuracy is improved, and the reliability of the electric heating belt control method is improved.
The control method comprises the following steps:
step S1: starting an air conditioner;
step S11: in the heating mode, the air conditioner is started;
step S12: real-time detection of outdoor ambient temperature T Outer ring ；
Step S13: according to the outdoor ambient temperature T Outer ring Determining the heating environment of the air conditioner, and adjusting the first preset temperature T 0 A second predetermined temperature T 1 A preset time t, compressor frequency 1 ％、a 2 % and w revolutions per minute, step S2 is performed.
In the step included in the step S1, the outdoor environment temperature is detected, the size or range of the preset value is adjusted in real time through the outdoor environment temperature, the accuracy of control can be effectively improved, the preset value can be adjusted in real time according to the change of the outdoor environment, the control on the electric heating belt is further enhanced, the energy loss is reduced, the service life of the electric heating belt is prolonged, and the working performance of the electric heating belt is enhanced.
Step S2: real-time detection comprises the initial temperature T of the coil pipe at the bottom of the heat exchanger of the outdoor unit Initial coil Initial temperature T of air inlet of indoor unit Initial air-out Running temperature T of bottom coil of outdoor unit heat exchanger Coil running And the running temperature T of the air inlet of the indoor unit Air-out operation ；
Wherein, step S2 includes:
step S21: detecting T Initial coil 、T Initial air-out ；
Step S22: detecting T Coil pipe operation 、T Air-out operation ；
And step S3: determine T Initial coil And T Coil running Whether the difference of (a) is greater than T 0 If yes, executing step S4, if no, returning to step S3;
wherein, step S3 includes:
step S31: determination of T Initial coil And T Coil pipe operation Whether the difference is greater than T 0 If yes, executing step S32, otherwise, returning to step S31 after maintaining the current status running for the preset time t;
step S32: adjusting the current compressor frequency to a of the compressor frequency 1 ％；
Step S33: adjusting the rotating speed of the fan at the speed of w revolutions per minute, and executing the step S4 after a preset time t;
and the step S3 comprises the step of comparing the coil temperature of the chassis of the heat exchanger of the outdoor unit, wherein the temperature of the coil at the first rated time after the starting of the air conditioner is started is used at the beginning of the T coil, so that the condition of large detection error caused by different starting times of the air conditioner and non-uniform running working states of the heat exchanger is favorably reduced, further, the running temperature at the coil is detected in real time, the reliability of the control method of the electric heating band is improved, and the running stability of the control method of the electric heating band is enhanced.
And step S4: judgment of T Initial air-out And T Air-out operation Whether the difference of (a) is greater than T 0 If yes, executing the step S5, if no, returning to the step S4;
wherein, step S4 includes:
step S41: determination of T Initial air-out And T Air-out operation Whether the difference is greater than T 0 If yes, executing step S42, otherwise, returning to step S41 after maintaining the current operation for the preset time t;
step S42: adjusting the current compressor frequency to a of the compressor frequency 2 ％；
Step S43: adjusting the rotating speed of the fan at the speed of w revolutions per minute, and executing the step S5 after a preset time t;
in the step included in the step S4, the temperature rating time of the air outlet of the indoor unit is further compared before and after, so that the judgment of the current frosting condition of the outdoor unit can be improved, the accurate control of the opening time of the electric heating belt is facilitated, the loss of electric energy is reduced, the electric energy is saved, and the comfort of a user is improved.
Step S5: obtaining a current T Coil pipe operation Whether it is less than the second preset temperature T 1 And if yes, the electric heating belt is started to defrost.
Wherein, step S5 includes:
step S51: judging the temperature T of the bottom coil of the current heat exchanger Coil running Whether or not less than T 1 If yes, go to step S52; if not, the current situation is maintained and the operation is returned to the step S51 after the preset time t;
step S52: and starting an electric heating belt of the chassis to defrost.
Wherein, T Outer ring Reading the temperature value of the environment temperature sensing device; t is a unit of Coil pipe For reading the temperature value, T, of the coil at the bottom of the heat exchanger Initial coil When the air conditioner is started and initially runs for a first rated time, the temperature value T of a temperature sensing bulb of a coil pipe of a heat exchanger of an outdoor unit Coil pipe operation Detecting the temperature of the coil pipe once every second rated time after the air conditioner is started and operates for the first rated time; t is Air outlet Is the outlet air temperature value T of the indoor unit Initial air-out When the air conditioner is started and initially runs for a first rated time, the air outlet temperature value of the indoor unit is measured; t is Air-out operation Detecting the air outlet temperature once every second rated time after the air conditioner is started and operates for the first rated time; the preset time t is the working time of the air conditioner when the detection judgment is preset; a first preset temperature T 0 Detecting the determined preset temperature values in the first step and the second step; second predetermined temperature T 1 Detecting the determined preset temperature value for the third step; a is 1 % is the ratio of the changed compressor frequency to the current running compressor frequency in the first step of detection and determination, a 2 % is the ratio of the frequency of the compressor after change to the frequency of the compressor currently running in the second detection and judgment step; with fan speed variation of w revolutions per minuteSpeed.
The method comprises the steps of multiple detection and judgment through a control method of a chassis electric heating belt, different detection and judgment methods are selected for different outdoor environment temperatures, the coil temperature and the indoor unit air outlet temperature in operation are monitored in real time to be adjusted, the frequency of a compressor is changed, the rotating speed change of an indoor fan and an outdoor fan is adjusted at the same time, the timely opening and closing of the electric heating belt are controlled sequentially, resources are saved effectively, the electric heating belt is prevented from being opened too early, a large amount of electric energy is consumed, the electric heating belt can be controlled to operate effectively, the detection and judgment of actual environment are enhanced, the situation that the environment is severe is prevented, defrosting operation is low, the working efficiency of a heat exchanger is improved, meanwhile, the method for controlling the electric heating belt to open is more reliable, further, the practicability of the control method is enhanced, the electric heating belt can be controlled more accurately, the comfort of an air conditioner is improved, the reliability of the control method of the electric heating belt is guaranteed, the service life of the chassis electric heating belt is prolonged, and the customer satisfaction is improved.
Example one
In the heating mode of the air conditioner, the control method for the electric heating of the air conditioner chassis comprises the following steps:
step S1: starting the air conditioner, and detecting and judging step by step;
step S11: in the heating mode, the air conditioner is started;
step S12: real-time detection of outdoor ambient temperature T Outer ring ；
Step S13: according to the outdoor ambient temperature T Outer ring Preliminarily judging the heating environment of the air conditioner, T Outer ring >0 ℃, yes, the ambient temperature is good, step S14 is performed; if not, executing step S15;
step S14: setting a preset value: a first preset temperature T 0 =3 ℃ and a second predetermined temperature T 1 =5 ℃, predetermined time t =30 minutes, compressor frequency a 1 ％＝90％、a 2 % =85% and w =50 revolutions/minute, and step S2 is performed;
step S15: judging that the temperature is more than or equal to 0 DEG C Outer ring >At a temperature of-5 ℃ is,if the environmental temperature is relatively severe, executing step S16; if not, the environment temperature is very bad, and step S17 is executed;
step S16: setting a preset value: a first preset temperature T 0 =2 ℃ and a second predetermined temperature T 1 A of compressor frequency, = -10 ℃, preset time t =20 minutes 1 ％＝80％、a 2 % =75% and w =100 revolutions/minute, and step S2 is performed;
step S17: setting a preset value: a first preset temperature T 0 =1 ℃ and a second predetermined temperature T 1 A of compressor frequency, = -15 ℃, preset time t =10 minutes 1 ％＝70％、a 2 % =65% and w =150 revolutions/minute, and step S2 is performed;
step S2: detecting temperature values of a coil pipe at the bottom of the heat exchanger of the outdoor unit and an air inlet of the indoor unit in real time;
step S21: detecting T at a first nominal time Initial coil 、T Initial air-out ；
Step S22: detecting T every second rated time Coil pipe operation And T Air-out operation ；
And step S3: determine T Initial coil And T Coil pipe operation Whether the difference of (A) is greater than T 0 ；
Step S31: determination of T Initial coil And T Coil pipe operation Whether the difference is greater than T 0 If yes, executing the step S32, if not, returning to the step S3 after maintaining the current running for the preset time t;
step S32: rapidly reducing the compressor frequency to a of the current compressor frequency 1 ％；
Step S33: the rotating speed of the fan is adjusted at the speed of w revolutions per minute,
step S331: adjusting the rotating speed of the indoor fan: on the basis of the rotating speed of the existing fan, the rotating speed of the indoor fan is reduced at the speed of w revolutions per minute;
step S332: adjusting the rotating speed of an outdoor fan: on the basis of the rotating speed of the existing fan, the rotating speed of the outdoor fan is increased at the speed of w revolutions per minute;
step S333: after the lapse of a preset time t,detecting T The air is discharged for running, executing S4;
and step S4: judgment of T Initial air-out And T Air-out operation Whether the difference of (a) is greater than T 0 ；
Step S41: determination of T Initial air-out And T Air-out operation Whether the difference is greater than T 0 If yes, executing the step S42, otherwise, returning to the step S4 after maintaining the current running preset time t;
step S42: rapidly reducing the compressor frequency to a of the current compressor frequency 2 ％；
Step S43: the rotating speed of the fan is adjusted at the speed of w revolutions per minute,
step S431: adjusting the rotating speed of the indoor fan: on the basis of the rotating speed of the existing fan, the rotating speed of the indoor fan is reduced at the speed of w revolutions per minute;
step S432: adjusting the rotating speed of an outdoor fan: on the basis of the rotating speed of the existing fan, the rotating speed of the outdoor fan is increased at the speed of w revolutions per minute;
step S433: after a preset time T, detecting the current T again The operation of the coil pipe is carried out, executing the step S5;
step S5: according to the current T Coil running Whether the temperature is less than a second preset temperature T 1 If yes, an electric heating belt of the chassis is started to quickly defrost; otherwise, the current state is maintained and the operation is returned to the step S5 after the preset time t.
Wherein, in the present embodiment, a2= a1-5, the first preset temperature T 0 Greater than a second predetermined temperature T 1 In step S33 and step S43, the rotating speed of the outdoor fan is increased, the heat exchange air volume of the indoor unit can be effectively increased, the frosting speed of the air conditioner is reduced, the real-time monitoring of the temperature sensing device is realized, and the T is ensured Coil pipe operation 、T Air-out operation And T Outer ring The timeliness of the control method ensures that the control method can more accurately control the operation of the electric heating belt of the chassis, more effectively save the energy consumption of the air conditioner, reduce the consumption of economic cost, reduce the loss of the electric heating belt, prolong the service life of the electric heating belt, further increase the comfort of the air conditioner, and enhance the electric heating belt of the chassisThe reliability of the belt operation is improved, thereby effectively improving the satisfaction degree of users.
An air conditioner comprising a computer-readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement a control method of the electric heating belt.
A computer-readable storage medium, in which a computer program is stored which, when read and executed by a processor, implements the control method of the electric heating belt.
In the present invention, for any air conditioner, the structure of the chassis electrical heating belt in this embodiment may be included, and on the basis of the related structure and the assembly relationship of the chassis electrical heating belt provided in this embodiment, the air conditioner further includes conventional components including structures of an indoor unit, a condenser, and the like, which are not described herein again in view of the fact that they are all the prior art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A control method of an electric heating belt, characterized by comprising:
step S1: starting an air conditioner;
step S2: real-time detection comprises the initial temperature T of the coil pipe at the bottom of the heat exchanger of the outdoor unit Initial coil Initial temperature T of air inlet of indoor unit Initial air-out Running temperature T of bottom coil of outdoor unit heat exchanger Coil running And the operating temperature T of the air inlet of the indoor unit Air-out operation ；
And step S3: judgment of T Initial coil And T Coil pipe operation Whether the difference is greater than a first preset temperature T 0 If yes, executing step S4;
and step S4: determine T Initial air-out And T Air-out operation Whether the difference is greater than a first preset temperature T 0 Is to receiveStep S5 is executed;
step S5: obtaining a current T Coil running Whether it is less than the second preset temperature T 1 And if so, starting the electric heating belt to defrost.
2. The control method of an electric heating belt according to claim 1, wherein the step S1 includes:
step S11: in the heating mode, the air conditioner is started;
step S12: real-time detection of outdoor ambient temperature T Outer ring ；
Step S13: according to the outdoor ambient temperature T Outer ring The preset value in the heating mode is adjusted, and step S2 is executed.
3. The control method of an electric heating belt according to claim 2, wherein the preset value comprises T 0 、T 1 A preset time t, compressor frequency 1 % and a 2 % and speed of change of fan speed w rpm, a 1 % and a 2 % is the ratio of the frequency of the compressor after change to the frequency of the compressor currently running, and w revolutions per minute is the speed of the change of the rotating speed of the fan; t is the working time of the air conditioner when the detection judgment is preset; in the heating mode, T 0 Greater than T 1 ，a 1 Greater than a 2 。
4. A control method of an electric heating tape according to claim 3, wherein T is Initial coil When the air conditioner is started and initially runs for a first rated time, the temperature value of a coil pipe of a heat exchanger of an outdoor unit is measured; t is Coil pipe operation And detecting the temperature of the coil pipe of the heat exchanger of the outdoor unit once every second rated time after the air conditioner is started and operates for the first rated time.
5. The control method of an electric heating belt according to claim 4, wherein the T is Initial air-out The temperature value of the air outlet of the indoor unit is obtained when the air conditioner is started and initially runs for a first rated time; t is a unit of Air-out operation And detecting the air outlet temperature once every second rated time after the air conditioner is started to operate for the first rated time.
6. The control method of an electric heating belt according to claim 5, wherein the step S3 includes:
step S31: determination of T Initial coil And T Coil running Whether the difference is greater than T 0 If yes, executing step S32, otherwise, returning to step S31 after maintaining the current status running for the preset time t;
step S32: adjusting the current compressor frequency to a of the compressor frequency 1 ％；
Step S33: and adjusting the rotating speed of the fan at the speed of w revolutions per minute, and executing the step S4 after the preset time t.
7. The control method of an electric heating belt according to claim 6, wherein the step S4 includes:
step S41: determination of T Initial air-out And T Air-out operation Whether the difference is greater than T 0 If yes, executing step S42, if no, after maintaining the current status running for the preset time t, returning to step S41;
step S42: adjusting the current compressor frequency to a of the compressor frequency 2 ％；
Step S43: and adjusting the rotating speed of the fan at the speed of w revolutions per minute, and executing the step S5 after the preset time t.
8. The control method of an electric heating belt according to claim 7, wherein the step S5 includes:
step S51: judging the temperature T of the bottom coil of the current heat exchanger Coil running Whether or not less than T 1 If yes, go to step S52; if not, returning to the step S51 after the current operation is maintained for the preset time t;
step S52: and opening the electric heating belt of the chassis.
9. An air conditioner comprising a computer-readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement a control method of an electric heating belt according to any one of claims 1 to 8.
10. A computer-readable storage medium, characterized in that it stores a computer program which, when read and executed by a processor, implements a method of controlling an electric heating tape according to any one of claims 1 to 8.
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