CN114893885A - Heating defrosting control method of air conditioner, control device and medium - Google Patents
Heating defrosting control method of air conditioner, control device and medium Download PDFInfo
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- 238000010257 thawing Methods 0.000 title claims abstract description 183
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000010438 heat treatment Methods 0.000 title claims abstract description 38
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 20
- 239000000155 melt Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/70—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
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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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
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- General Engineering & Computer Science (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method for heating and defrosting of an air conditioner, the air conditioner, a control device and a medium, wherein the control method comprises the following steps: and a defrosting stage, wherein the defrosting stage comprises controlling the outer fan to continuously rotate so as to realize heating and defrosting. Compared with the prior art, the effect that this scheme can reach: the defrosting stage in this embodiment, what be directed against is the condition on heat exchanger outer icing layer, consequently during the defrosting stage in this embodiment, outer fan lasts the rotation, this moment because outdoor heat exchanger is covered by the ice sheet, consequently can not produce a large amount of wind and blow off the heat, but can directly peel off the heat exchanger with the inboard ice sheet of heat exchanger, thereby make the ice sheet directly drop from the heat exchanger, firmly adsorb the ice sheet in the outside on the heat exchanger surface simultaneously, thereby make the heat constantly transmit the ice sheet, realize that the ice sheet melts, drop.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a heating defrosting control method of an air conditioner, the air conditioner, a control device and a medium.
Background
With the development of air conditioners, during heating operation of the air conditioners, when the outdoor temperature is low, frost layers can be generated on heat exchangers of the outdoor units, so that the heat exchange effect between the heat exchangers and the outdoor air is affected, the heating effect is rapidly reduced, defrosting is required to be performed when the outdoor units frost, and the heating effect of the air conditioners is improved. In the related technology, the four-way valve is adopted to change the direction of refrigeration operation for defrosting during defrosting, namely, the indoor fan and the outdoor fan stop operating, and the system continuously transfers heat to the outdoor heat exchanger according to refrigeration operation to realize defrosting. However, if the whole surface of the condenser is frozen due to special reasons, such as overnight frost or power failure during defrosting, the ice cannot be completely melted by the common conventional reverse defrosting. At this time, as the outdoor heat exchanger is always covered by the ice layer, the heat exchange effect is extremely poor, and the ice cannot be completely melted by multiple times of common defrosting.
Therefore, how to improve the defrosting effect of the air conditioner so that the air conditioner can melt the ice layer on the outer side of the heat exchanger becomes a problem which needs to be solved urgently.
Disclosure of Invention
The invention solves the problem of how to improve the defrosting effect of the air conditioner so that the air conditioner can melt the ice layer on the outer side of the heat exchanger.
In order to solve the above problems, the present invention provides a control method for heating and defrosting of an air conditioner, the control method comprising: and a defrosting stage, namely controlling the external fan to continuously rotate to realize heating and defrosting in the defrosting stage of the air conditioner.
Compared with the prior art, the effect that this scheme can reach: the defrosting stage in this embodiment, what be directed against is the condition on heat exchanger outer icing layer, consequently during the defrosting stage in this embodiment, outer fan lasts the rotation, this moment because outdoor heat exchanger is covered by the ice sheet, consequently can not produce a large amount of wind and blow off the heat, but can directly peel off the heat exchanger with the inboard ice sheet of heat exchanger, thereby make the ice sheet directly drop from the heat exchanger, firmly adsorb the ice sheet in the outside on the heat exchanger surface simultaneously, thereby make the heat constantly transmit the ice sheet, realize that the ice sheet melts, drop.
In one embodiment of the present invention, the controlling the continuous rotation of the external fan to achieve heating and defrosting specifically includes: and controlling the outer fan to rotate at a high speed.
Compared with the prior art, the effect that this scheme can reach: the outer fan of high-speed pivoted can form more powerful suction, can further accelerate the drop of the inboard ice sheet of heat exchanger, can further stabilize the absorption on the heat exchanger outside ice sheet simultaneously, realizes that the ice sheet of more quick melts and drops.
In one embodiment of the invention, the defrosting stage comprises: a preliminary defrosting stage and a deep defrosting stage; wherein the external fan does not rotate in the preliminary defrosting stage; and the outer fan continuously rotates in the deep defrosting stage.
Compared with the prior art, the effect that this scheme can reach: in a specific embodiment, the defrosting stage includes a preliminary defrosting stage corresponding to a conventional defrosting stage in the related art, in which the outer fan does not rotate, and an advanced defrosting stage, in which the outer fan continuously rotates when the advanced defrosting stage is started, so as to facilitate an ice melting operation
In one embodiment of the invention, before entering the preliminary defrosting stage, the method further comprises the following steps: judging whether the conditions for entering the preliminary defrosting stage are met or not, wherein the conditions for entering the preliminary defrosting stage comprise: detecting the difference value between the temperature of the outer disc of the heat exchanger and the temperature of the external environment, and recording the difference value as a first difference value; and if the first difference is greater than or equal to the first set temperature, the temperature of the outer disc of the heat exchanger is less than the second set temperature, and the continuous operation time of the compressor is greater than or equal to the first set time, entering a preliminary defrosting stage.
Compared with the prior art, the effect that this scheme can reach: and determining the condition for entering the preliminary defrosting stage, thereby accurately controlling the air conditioner to enter the node of the preliminary defrosting stage.
In one embodiment of the present invention, before entering into the deep defrosting stage, the method further comprises: judging whether the conditions for entering the advanced defrosting stage are met, wherein the conditions for entering the advanced defrosting stage comprise: after the preliminary defrosting stage, detecting the difference value between the temperature of the outer disc of the heat exchanger and the temperature of the external environment, and recording the difference value as a second difference value; the air conditioner recovers heating for a second set time; after the second set time, detecting the difference value between the temperature of the outer disc of the heat exchanger and the ambient temperature at the moment, and recording as a third difference value; determining the difference value of the second difference value minus the third difference value; and if the difference value is less than or equal to a third set temperature, the third difference value is greater than or equal to a fourth set temperature, and the temperature of the outer plate of the heat exchanger after the second set time is less than a fifth set temperature, entering a deep defrosting stage.
Compared with the prior art, the effect that this scheme can reach: and determining the condition of entering the deep defrosting stage, thereby accurately controlling the node of the air conditioner entering the deep defrosting stage.
In one embodiment of the present invention, after the defrosting stage, the method further comprises: detecting the temperature of an outer disc of the heat exchanger; if the temperature of the outer plate of the heat exchanger is greater than or equal to the sixth set temperature, the defrosting stage is exited; and if the temperature of the outer plate of the heat exchanger is lower than the sixth set temperature, continuing the defrosting stage.
Compared with the prior art, the effect that this scheme can reach: the time point of the air conditioner exiting the defrosting stage is accurately controlled, so that resource waste is avoided, and the running cost of the air conditioner is effectively saved.
In one embodiment of the present invention, after the defrosting stage, the method further comprises: detecting the total defrosting time of a defrosting stage; if the total defrosting time is longer than or equal to a third set time, exiting the defrosting stage; and if the total defrosting time is less than the third set time, continuing the defrosting stage.
Compared with the prior art, the effect that this scheme can reach: the time point of the air conditioner exiting the defrosting stage is accurately controlled, so that resource waste is avoided, and the running cost of the air conditioner is effectively saved.
In one embodiment of the present invention, there is provided a control device including: a control module; an ice melting module; the control module comprises a controller, and the controller controls the deicing module to realize the steps of the control method for heating and defrosting of the air conditioner in any one of the above embodiments.
Compared with the prior art, the effect that this scheme can reach: the control device in this embodiment can implement the steps of the control method for heating and defrosting of the air conditioner in any one of the above embodiments, so that the control device in this embodiment can implement the beneficial effects of any one of the above embodiments, and details are not described herein.
In one embodiment of the present invention, there is provided an air conditioner including: the control device according to the above embodiment, wherein the control device is capable of executing a control method for heating and defrosting including the air conditioner according to any one of the above embodiments.
Compared with the prior art, the effect that this scheme can reach: the air conditioner in this embodiment has the control device in the above embodiment, so that the air conditioner in this embodiment can implement the control method for heating and defrosting of the air conditioner in any of the above embodiments, and has the beneficial effects of any of the above embodiments, and details are not repeated here.
In an embodiment of the present invention, a readable storage medium is provided, on which a program or instructions are stored, and the program or instructions, when executed by a processor, implement the steps of the control method for heating and defrosting of an air conditioner as in any one of the above embodiments.
Compared with the prior art, the effect that this scheme can reach: the readable storage medium in this embodiment can implement the steps of the control method for heating and defrosting of the air conditioner in any embodiment, and therefore the readable storage medium in this embodiment can implement the beneficial effects of any embodiment, and is not described herein again.
Drawings
Fig. 1 is a flow chart of a control method for heating defrosting of an air conditioner in some embodiments;
FIG. 2 is a schematic structural diagram of a control device;
fig. 3 is a schematic structural view of an air conditioner.
Description of reference numerals:
1. an air conditioner; 100. a control device; 101. a control module; 102. and an ice melting module.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments thereof are described in detail.
The first embodiment is as follows:
the embodiment provides a control method for heating defrosting of an air conditioner, which comprises the following steps:
and a defrosting stage, namely controlling the external fan to continuously rotate to realize heating and defrosting in the defrosting stage of the air conditioner.
In this embodiment, when the ice layer on the outer side of the heat exchanger cannot be melted in the conventional defrosting stage in the related art, the control method in this embodiment is performed, in which the ice layer in contact with the surface of the fin can be melted into water in the initial stage of the conventional defrosting, and then since the whole ice layer can still stand on both sides of the outdoor heat exchanger, an air layer is formed between the ice layer and the condenser, heat cannot be quickly transferred to the ice layer, and the ice layer fails to be melted.
Particularly, during the conventional stage of defrosting among the correlation technique, outer fan is in the stop state all the time, in order to prevent that outer fan from opening the back and will be used for the heat of defrosting and blowing away, in order to influence the defrosting effect, but the stage of defrosting in this embodiment, to be the condition on the outer icing layer of heat exchanger, consequently, during the stage of defrosting in this embodiment, outer fan lasts the rotation, because outdoor heat exchanger is covered by the ice sheet this moment, consequently, can not produce a large amount of wind and blow away the heat, but can directly peel off the heat exchanger with the inboard ice sheet of heat exchanger, thereby make the ice sheet directly drop from the heat exchanger, firmly adsorb the ice sheet in the heat exchanger surface simultaneously, thereby make the heat constantly transmit for the ice sheet, realize that the ice sheet melts, drop.
Example two:
in this embodiment, control outer fan and continuously rotate in order to realize heating defrosting, specifically include: and controlling the outer fan to rotate at a high speed.
In this embodiment, outer fan when carrying out the defrosting stage of embodiment one, outer fan carries out high-speed rotation, and high-speed pivoted outer fan can form stronger suction, can further accelerate the drop of the inboard ice sheet of heat exchanger, can further stabilize the absorption of the heat exchanger outside ice sheet simultaneously, realizes that the ice sheet of more quick melts and drops.
Example three:
in this embodiment, the defrosting stage includes: a preliminary defrosting stage and a deep defrosting stage; wherein the external fan does not rotate in the preliminary defrosting stage; and the outer fan continuously rotates in the deep defrosting stage.
In this embodiment, the defrosting stage has included preliminary defrosting stage and degree of depth defrosting stage, and what preliminary defrosting stage corresponded promptly is the conventional defrosting stage among the correlation technique, and in preliminary defrosting stage, outer fan does not rotate, and when opening degree of depth defrosting stage, outer fan lasts the rotation to be convenient for the operation of melting ice.
Further, it should be noted that the deep defrosting phase can be started only after the preliminary defrosting phase is executed.
Example four:
in this embodiment, before entering the preliminary defrosting stage, the method further includes: judging whether the conditions for entering the preliminary defrosting stage are met, wherein the conditions for entering the preliminary defrosting stage comprise: detecting the difference value between the temperature of an outer disc of the heat exchanger and the temperature of an external environment, and recording the difference value as a first difference value; and if the first difference is greater than or equal to the first set temperature, the temperature of the outer disc of the heat exchanger is less than the second set temperature, and the continuous operation time of the compressor is greater than or equal to the first set time, entering a preliminary defrosting stage.
In this embodiment, the condition of entering the preliminary defrosting is specifically described, where the first set time, the first set temperature, and the second set temperature are default factory settings of the air conditioner, and the first set time, the first set temperature, and the second set temperature may be set by themselves according to the operating personnel under different working conditions.
When the first difference is greater than or equal to a first set temperature, in this embodiment, the first set temperature is preferably 13 degrees celsius, and the temperature of the heat exchanger outer disc is less than a second set temperature, in this embodiment, the second set temperature is preferably 0 degrees celsius, and the continuous operation time of the compressor is greater than or equal to a first set time, in this embodiment, the first set time is preferably 45 minutes, and the air conditioner enters a preliminary defrosting stage.
Example five:
in this embodiment, before entering the deep defrosting stage, the method further includes: judging whether the conditions for entering the advanced defrosting stage are met, wherein the conditions for entering the advanced defrosting stage comprise: after the preliminary defrosting stage, detecting the difference value between the temperature of the outer disc of the heat exchanger and the temperature of the external environment, and recording the difference value as a second difference value; the air conditioner recovers heating for a second set time; after the second set time, detecting the difference value between the temperature of the outer disc of the heat exchanger and the ambient temperature at the moment, and recording as a third difference value; determining the difference value of the second difference value minus the third difference value; and if the difference value is less than or equal to a third set temperature, the third difference value is greater than or equal to a fourth set temperature, and the temperature of the outer plate of the heat exchanger after the second set time is less than a fifth set temperature, entering a deep defrosting stage.
Specifically, the second set time, the third set temperature, the fourth set temperature and the fifth set temperature are default factory settings of the air conditioner, and the second set time, the third set temperature, the fourth set temperature and the fifth set temperature can be automatically set and changed according to different working conditions of the air conditioner by an operator.
In this embodiment, after the preliminary defrosting stage, the air conditioner determines whether the deep defrosting stage needs to be entered. When the air conditioner finishes the primary defrosting stage, the temperature of the outer disc of the heat exchanger and the temperature of the external environment need to be detected when the primary defrosting stage is finished at the moment, the temperature of the outer disc of the heat exchanger is recorded as Ta when the primary defrosting stage is just finished at the moment, the temperature of the external environment is recorded as Tb at the moment, and the difference obtained by subtracting Tb from Ta is the second difference.
And then, the air conditioner is recovered to heat, the duration of the recovery heating lasts for a second set time, specifically, the second set time is 10 minutes in the embodiment, that is, the air conditioner recovers to heat for 10 minutes, the temperature of the outer disc of the heat exchanger at the moment when the air conditioner recovers to heat for 10 minutes is detected and is recorded as Tc, the temperature of the outer environment at the moment when the air conditioner recovers to heat for 10 minutes is recorded as Td, and the difference value of the Tc minus the Td is a third difference value.
The difference value obtained by subtracting the third difference value from the second difference value is judged, when the difference value is less than or equal to a third set temperature, the third set temperature is specifically 2 degrees centigrade in the embodiment, and the result shows that the difference of the heat exchange effects of the outdoor heat exchanger is not large after the preliminary defrosting stage, which shows that the frost is not on the outer side of the heat exchanger in one case and the frost is not melted in the other case. Meanwhile, the third difference value is combined, when the third difference value is larger than or equal to the fourth set temperature, the fourth set temperature is specifically 13 ℃ in the embodiment, and therefore the heat exchange effect of the outdoor heat exchanger is still poor after the preliminary defrosting stage, and the heat exchanger can be judged to be frozen and invalid in the preliminary defrosting stage by combining the two conditions.
Meanwhile, it is determined whether Tc is lower than a fifth set temperature, which is specifically 0 ℃ in this embodiment, and when Tc is lower than the fifth set temperature, the air conditioner immediately enters a deep defrosting stage.
Example six:
in this embodiment, after the defrosting stage, the method further includes: detecting the temperature of an outer disc of the heat exchanger; if the temperature of the outer plate of the heat exchanger is greater than or equal to the sixth set temperature, the defrosting stage is exited; and if the temperature of the outer plate of the heat exchanger is lower than the sixth set temperature, continuing the defrosting stage.
In the present embodiment, the exit condition of the defrosting stage is specifically described, wherein the defrosting stage includes a preliminary defrosting stage and a deep defrosting stage, and the exit condition in the present embodiment is applicable to the preliminary defrosting stage and the deep defrosting stage.
The sixth set temperature is also default factory setting of the air conditioner, and an operator can modify and set the sixth set temperature according to different working conditions. Specifically, the sixth set temperature in the present embodiment is preferably 12 degrees celsius.
In this embodiment, the real-time temperature of the outer plate of the heat exchanger is detected in the defrosting stage, and if the detected temperature of the outer plate of the heat exchanger is greater than the sixth set temperature, it is indicated that defrosting is completed at this time, and the defrosting stage is exited.
Example seven:
in this embodiment, after the defrosting stage, the method further includes: detecting the total defrosting time of a defrosting stage; if the total defrosting time is longer than or equal to a third set time, exiting the defrosting stage; and if the total defrosting time is less than the third set time, continuing the defrosting stage.
In the present embodiment, the exit condition of the defrosting stage is specifically described, wherein the defrosting stage includes a preliminary defrosting stage and a deep defrosting stage, and the exit condition in the present embodiment is applicable to the preliminary defrosting stage and the deep defrosting stage.
The third set time is also default factory setting of the air conditioner, and an operator can modify and set the third set time according to different working conditions. Specifically, the third set time period in the present embodiment is preferably 9 minutes.
In this embodiment, when the defrosting phase continues to operate for 9 minutes, that is, when the defrosting phase is greater than or equal to the third set length, the defrosting phase is exited.
Example eight:
referring to fig. 1, the present embodiment specifically describes a method for controlling heating and defrosting of an air conditioner.
Step S10 is started, step S20 is then performed, the operation time of the compressor is determined, heating is resumed at this time, that is, heating is resumed for a second set time, step S30 is performed if the operation time of the compressor is greater than or equal to 10 minutes, and if the operation time of the compressor is not greater than 10 minutes, step S10 is performed again.
When the process goes to step S30, Λ T0 in step S30 is the second difference in the fifth embodiment, Λ T1 is the third difference in the fifth embodiment, and Λ T0- Λ T1 is the difference in the fifth embodiment, and when the difference is smaller than or equal to 2 degrees celsius, it is determined that the process goes to step S70, and 2 degrees celsius is the third set temperature in the fifth embodiment. If the difference is equal to or smaller than 2 degrees celsius, the process proceeds to step S40.
In step S40, it is determined whether or not the third difference is equal to or greater than 13 degrees celsius, and if yes, the process proceeds to step S50, and if no, the process proceeds to S70. Wherein 13 degrees celsius is the fourth setting temperature in the fifth embodiment.
In step S50, it is determined whether Tc is less than 0 degree celsius in the fifth example, and if so, the process proceeds to step S60.
When the operation proceeds to step S70, it is determined whether the continuous operation time of the compressor is longer than 45 minutes, if yes, the operation proceeds to step S80, if no, the operation returns to continue to execute the operation of the compressor, and the operation proceeds to step S70 again to determine the operation time of the compressor. 45 minutes is the first set time in example four.
When the process goes to step S80, it is determined whether the T outer ring-T outer disc is equal to or greater than 13 degrees celsius, the difference between the T outer ring and the T outer disc is the first difference in the fourth embodiment, 13 degrees celsius is the first set temperature in the fourth embodiment, if the determination is yes, the process goes to step S90, and if the determination is no, the process returns to step S70.
When the step S90 is entered, it is determined whether the T outer disc is less than 0 ℃, the T outer disc in the step S90 is the temperature of the heat exchanger outer discs of the four embodiments, and 0 ℃ is the second set temperature of the four embodiments, and when the determination in the step S90 is yes, the step S100 is entered, and the preliminary defrosting stage is entered. If no, the process returns to step S70.
Example nine:
in the present embodiment, a control device 100 is provided, and the control device 100 includes: a control module 101; an ice melting module 102; the control module 101 includes a controller, and the controller controls the deicing module 102 to implement the steps of the control method for heating and defrosting of the air conditioner according to any one of the above embodiments.
Fig. 2 shows some components of the control device 100, and the control device 100 may further include, but is not limited to, a storage, an identification component, and a signal transmission component, and similarly, the control module 101 in the control device 100 is communicated with each component, and the control module 101 includes a controller, and when an instruction or a program needs to be performed, the controller may control the ice melting module 102 to implement the steps of the control method for heating and melting frost of the air conditioner according to any one of the above embodiments.
Example ten:
referring to fig. 3, in the present embodiment, there is provided an air conditioner 1, the air conditioner 1 including: the control device according to the above embodiment, wherein the control device is capable of executing the control method of heating and defrosting including the air conditioner 1 according to any one of the above embodiments.
The air conditioner 1 in the present embodiment includes, but is not limited to, a wall-mounted air conditioner, a cabinet air conditioner, a central air conditioner, and a mobile air conditioner.
Wherein, air conditioner 1 in this embodiment is when carrying out preliminary defrosting stage, and when beginning preliminary defrosting stage, the compressor is opened, and the cross valve is closed, and interior fan is closed, and outer fan is closed.
When the air conditioner 1 in this embodiment starts to perform the deep defrosting stage, the compressor is turned on, the four-way valve is turned off, the inner fan is turned off, and the outer fan is continuously turned on when the deep defrosting stage starts.
Example eleven:
in this embodiment, a readable storage medium is provided, on which a program or instructions are stored, and when the program or instructions are executed by a processor, the steps of the control method for heating and defrosting of an air conditioner according to any one of the above embodiments are implemented.
The readable storage medium may be any combination of one or more readable media, which may be a readable signal medium or a readable storage medium, and may include, for example but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of the readable storage medium include: an electrical connection having one or more wires, a portable diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory, an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A control method for heating defrosting of an air conditioner is characterized by comprising the following steps:
and a defrosting stage, wherein the defrosting stage of the air conditioner comprises controlling an external fan to continuously rotate so as to realize heating and defrosting.
2. The control method according to claim 1, wherein the controlling of the continuous rotation of the outer fan to achieve heating and defrosting specifically comprises:
and controlling the outer fan to rotate at a high speed.
3. The control method according to claim 1, characterized in that said defrosting phase comprises:
a preliminary defrosting stage and a deep defrosting stage;
wherein the outer fan does not rotate in the preliminary defrosting stage;
and in the deep defrosting stage, the outer fan continuously rotates.
4. The control method according to claim 3, characterized by, before entering the preliminary defrosting stage, further comprising: judging whether the condition for entering the preliminary defrosting stage is met, wherein the condition for entering the preliminary defrosting stage comprises the following steps:
detecting the difference value between the temperature of the outer disc of the heat exchanger and the temperature of the external environment, and recording the difference value as a first difference value;
and if the first difference is greater than or equal to a first set temperature, the temperature of the outer plate of the heat exchanger is less than a second set temperature, and the continuous operation time of the compressor is greater than or equal to a first set time, entering a preliminary defrosting stage.
5. The control method according to claim 3, before entering the deep defrosting stage, further comprising: judging whether the conditions for entering the advanced defrosting stage are met, wherein the conditions for entering the advanced defrosting stage comprise:
after the preliminary defrosting stage, detecting the difference value between the temperature of the outer disc of the heat exchanger and the temperature of the external environment, and recording the difference value as a second difference value;
the air conditioner recovers heating for a second set time;
after the second set time, detecting the difference value between the temperature of the outer disc of the heat exchanger and the ambient temperature at the moment, and recording as a third difference value;
determining a difference magnitude of the second difference minus the third difference;
and entering the deep defrosting stage if the difference value is less than or equal to a third set temperature, the third difference value is greater than or equal to a fourth set temperature, and the temperature of the outer plate of the heat exchanger after the second set time is less than a fifth set temperature.
6. The control method according to claim 3, characterized by further comprising, after the defrosting stage:
detecting the temperature of an outer disc of the heat exchanger;
if the temperature of the outer plate of the heat exchanger is greater than or equal to a sixth set temperature, the defrosting stage is exited;
and if the temperature of the outer plate of the heat exchanger is lower than the sixth set temperature, continuing the defrosting stage.
7. The control method according to claim 3, characterized by further comprising, after the defrosting stage:
detecting the total defrosting time of the defrosting stage;
if the total defrosting time is longer than or equal to a third set time, exiting the defrosting stage;
and if the total defrosting time is less than the third set time, continuing the defrosting stage.
8. A control device, characterized in that the control device comprises:
a control module;
an ice melting module;
wherein the control module comprises a controller, and the controller controls the deicing module to realize the steps of the control method for heating and defrosting of the air conditioner according to any one of claims 1 to 7.
9. An air conditioner, characterized in that the air conditioner comprises:
the control device according to claim 8, wherein the control device is capable of executing a control method of heating defrosting including the air conditioner according to any one of claims 1 to 7.
10. A readable storage medium, characterized in that the readable storage medium stores thereon a program or instructions, which when executed by a processor, implement the steps of the control method for heating defrosting of an air conditioner according to any one of claims 1 to 7.
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