CN113074452A - Defrosting control method of air conditioner, air conditioner and storage medium - Google Patents
Defrosting control method of air conditioner, air conditioner and storage medium Download PDFInfo
- Publication number
- CN113074452A CN113074452A CN202110295604.3A CN202110295604A CN113074452A CN 113074452 A CN113074452 A CN 113074452A CN 202110295604 A CN202110295604 A CN 202110295604A CN 113074452 A CN113074452 A CN 113074452A
- Authority
- CN
- China
- Prior art keywords
- defrosting
- air conditioner
- opening degree
- control method
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- F24F11/77—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 by controlling the speed of ventilators
-
- 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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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
-
- 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
-
- 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 invention discloses a defrosting control method of an air conditioner, the air conditioner and a storage medium, wherein the defrosting control method of the air conditioner comprises the following steps: acquiring the current exhaust temperature of the compressor; determining that the current compressor discharge temperature is greater than a target discharge temperature; and controlling the opening degree of the electronic expansion valve to increase a first opening degree every a first preset time from the initial defrosting opening degree until the opening degree of the electronic expansion valve reaches a first target defrosting opening degree. The method can improve the stability of the system and improve the defrosting effect during defrosting.
Description
Technical Field
The present invention relates to the field of air conditioners, and in particular, to a defrosting control method for an air conditioner, and a computer-readable storage medium.
Background
In the related art, during defrosting, the air conditioner controls the opening degree of the electronic expansion valve to be reduced, so that the exhaust temperature and the temperature of the outdoor coil pipe are increased, and the purpose of defrosting is achieved. And during defrosting, the air conditioner can adjust the opening degree of the electronic expansion valve to be directly increased or decreased to a preset opening degree so as to achieve the defrosting effect, but the adjustment mode can cause the system to fluctuate greatly and influence the stability of the system.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a defrosting control method for an air conditioner, which can improve the stability of the system and improve the defrosting effect when defrosting.
The second objective of the present invention is to provide an air conditioner.
It is a further object of the present invention to provide a computer-readable storage medium.
In order to solve the above problem, an embodiment of a first aspect of the present invention provides a defrosting control method for an air conditioner, including: acquiring the current exhaust temperature of the compressor; determining that the current compressor discharge temperature is greater than a target discharge temperature; and controlling the opening degree of the electronic expansion valve to increase a first opening degree every a first preset time from the initial defrosting opening degree until the opening degree of the electronic expansion valve reaches a first target defrosting opening degree.
According to the defrosting control method of the air conditioner, when the current exhaust temperature of the compressor is higher than the target exhaust temperature, the opening degree of the electronic expansion valve is adjusted in a gradually increasing mode, so that the buffering effect can be achieved, the stability of the system is improved, and the refrigerant circulation quantity can be increased by controlling the opening degree of the electronic expansion valve to be gradually increased from the initial defrosting opening degree to the first target defrosting opening degree, so that the purpose of quick defrosting is achieved, and the defrosting effect is improved.
In some embodiments, the first target defrost opening Kmax takes the following values: kmax is more than or equal to 400 steps and less than or equal to 480 steps.
In some embodiments, the first preset time t1 is: 0s < t1 is not more than 60s, and the value of the first opening K1 is as follows: k1 is more than or equal to 1 step and less than or equal to 60 steps.
In some embodiments, the method further comprises: determining that the current compressor discharge temperature is less than the target discharge temperature; and controlling the opening degree of the electronic expansion valve to be reduced by a second opening degree every second preset time from the initial defrosting opening degree until the opening degree of the electronic expansion valve reaches a second target defrosting opening degree.
In some embodiments, the second target defrosting opening Kmin takes a value of: kmin is more than or equal to 0 step and less than or equal to 200 steps.
In some embodiments, the second preset time t2 is: 0s < t2 is not more than 60s, and the value of the second opening K2 is as follows: k2 is more than or equal to 1 step and less than or equal to 60 steps.
In some embodiments, prior to obtaining the current compressor discharge temperature, the method further comprises: acquiring the temperature of an outdoor coil pipe; determining that the temperature of the outdoor coil is less than or equal to the temperature of the defrosting target coil for a third preset time; and controlling the air conditioner to enter a defrosting mode.
In some embodiments, controlling the air conditioner to enter a defrost mode includes: controlling the compressor to stop running; after a fourth preset time, controlling the indoor fan and the outdoor fan to stop running, and controlling the opening of the electronic expansion valve to be the initial defrosting opening; after the fifth preset time, controlling the four-way valve to be powered off; and after the sixth preset time, controlling the compressor to start, and controlling the compressor to run to the defrosting frequency.
An embodiment of a second aspect of the present invention provides an air conditioner, including: the system comprises a compressor, an indoor fan, an outdoor fan, an electronic expansion valve and a four-way valve; the first temperature sensor is used for acquiring the current exhaust temperature of the compressor; the second temperature sensor is used for acquiring the temperature of the outdoor coil pipe; and the controller is respectively connected with the first temperature sensor and the second temperature sensor and is used for executing the defrosting control method of the air conditioner in the embodiment.
According to the air conditioner provided by the embodiment of the invention, the controller adopts the defrosting control method of the air conditioner provided by the embodiment, so that the stability of a system during defrosting can be improved, and the defrosting effect is improved.
A third aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed, implements the defrosting control method of the air conditioner according to the above embodiments.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a defrost control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of a defrost control method of an air conditioner according to another embodiment of the present invention;
fig. 3 is a block diagram of an air conditioner according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
The air conditioner performs functions such as refrigeration/heating circulation or dehumidification through the compressor, the condenser, the expansion valve and the evaporator, can realize the regulation of the indoor environment, and improves the comfort of the indoor environment. The refrigeration cycle includes a series of processes, for example, involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.
The compressor compresses a refrigerant gas in a high temperature and high pressure state and discharges the compressed refrigerant gas, the discharged refrigerant gas flows into a condenser, the condenser condenses the compressed refrigerant into a liquid state, and heat is released to the surrounding environment through a condensation process.
The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.
However, when the air conditioner performs defrosting, the displacement of the compressor selected by the air conditioner is different, so that the shunting conditions of the heat exchanger in the air conditioner are different, and the problems of slow temperature rise of an outdoor coil, incomplete defrosting, overlong defrosting time and the like are easily caused in the defrosting process.
In order to solve the above problem, a first embodiment of the present invention provides a defrosting control method for an air conditioner, which can improve the stability of the system and improve the defrosting effect during defrosting.
As shown in fig. 1, the defrosting control method of the air conditioner according to the embodiment of the present invention at least includes steps S1 to S3.
Step S1, the current compressor discharge temperature is obtained.
In an embodiment, the current compressor discharge temperature may be obtained by providing a temperature sensor at a discharge port position of the compressor to detect the discharge temperature of the compressor in real time.
In step S2, it is determined that the current compressor discharge temperature is greater than the target discharge temperature.
The target exhaust temperature may be set according to the actual conditions of the air conditioner, such as the installation environment, the installation location, and the like, but is not limited thereto.
In an embodiment, the obtained current compressor discharge temperature is compared with the target discharge temperature, and if the current compressor discharge temperature is greater than the target discharge temperature, it indicates that the discharge temperature of the compressor is too high, and a large amount of high-temperature refrigerant exists in the compressor, so that the outdoor heat exchanger can be effectively defrosted, and therefore, the step S3 is executed to adjust the opening degree of the electronic expansion valve to control the discharge amount of the refrigerant of the compressor, so as to ensure normal defrosting operation.
In step S3, the opening degree of the electronic expansion valve is controlled to increase from the initial defrosting opening degree by a first opening degree every first preset time until the opening degree of the electronic expansion valve reaches a first target defrosting opening degree.
Wherein, the value of initial defrosting opening K0 is: the K0 is more than or equal to 0 step and less than or equal to 480 steps, for example, the K0 can be 100 steps, 200 steps and 480 steps.
In the embodiment, after the current compressor exhaust temperature is determined to be higher than the target exhaust temperature, the opening degree of the electronic expansion valve is set to be increased by a first opening degree every first preset time from the initial defrosting opening degree until the opening degree of the electronic expansion valve reaches the first target defrosting opening degree, namely, the opening degree of the electronic expansion valve is adjusted in a gradual increasing mode to play a buffering role, so that the problem of large system fluctuation caused by the fact that the opening degree of the electronic expansion valve is directly increased to the first target defrosting opening degree is solved, the stability of the system is improved, and the normal operation of an air conditioner is ensured.
For example, it is assumed that the initial defrost opening of the electronic expansion valve is K0, the first opening is K1, and the first target defrost opening is Kmax. When the opening degree of the electronic expansion valve is controlled to be adjusted from K0 to Kmax directly, the air conditioner will suddenly increase in opening degree and cause a certain fluctuation. Therefore, to avoid the influence of the fluctuation, in the embodiment of the present invention, after determining that the current compressor discharge temperature is greater than the target discharge temperature, the opening degree of the electronic expansion valve is controlled to be K0, and the first preset time t1 is delayed, the opening degree of the electronic expansion valve is controlled to be increased from K0 to K0+ K1, and after maintaining the first preset time t1, the opening degree of the electronic expansion valve is controlled to be increased from K0+ K1 to K0+ K1+ K1 again, and the electronic expansion valve is stopped after the opening degree of the electronic expansion valve reaches Kmax, so that the adjustment mode plays a role of buffering, the influence of the fluctuation caused by the change of the opening degree is reduced, and the stability of the system operation is improved.
In addition, when the current exhaust temperature of the compressor is higher than the target exhaust temperature, the opening of the electronic expansion valve is controlled to be gradually increased from the initial defrosting opening to the first target defrosting opening, so that the refrigerant circulation quantity can be increased, the refrigerant quantity flowing into the outdoor heat exchanger by the compressor is increased, the defrosting time is shortened, the purpose of quick defrosting is achieved, and the defrosting effect is improved.
According to the defrosting control method of the air conditioner, when the current exhaust temperature of the compressor is higher than the target exhaust temperature, the opening degree of the electronic expansion valve is adjusted in a gradually increasing mode, so that the buffering effect can be achieved, the stability of the system is improved, and the refrigerant circulation quantity can be increased by controlling the opening degree of the electronic expansion valve to be gradually increased from the initial defrosting opening degree to the first target defrosting opening degree, so that the purpose of quick defrosting is achieved, and the defrosting effect is improved.
In some embodiments, the first target defrost opening Kmax takes the value: kmax is 400 steps or less and 480 steps or less, for example, Kmax may be 400 steps, 420 steps, 450 steps or 480 steps. Therefore, the value range of the first target defrosting opening Kmax is set, the refrigerant circulation volume can be effectively increased, the purpose of quick defrosting is achieved, the defrosting effect is ensured, and the phenomenon that the defrosting effect is influenced due to the fact that the exhaust temperature is reduced due to overlarge opening can be avoided.
In some embodiments, the first preset time t1 is: 0s < t1 ≦ 60s, e.g., t1 may be 1s, 20s, 50s, 60 s; the value of the first opening K1 is: the K1 is more than or equal to 1 step and less than or equal to 60 steps, for example, the K1 can be 1 step, 20 steps, 30 steps and 60 steps. Therefore, the value range of the first preset time and the value range of the first opening degree are set, so that the fluctuation influence caused by the change of the opening degree is further reduced, and the running stability of the air conditioner is improved.
In some embodiments, when it is determined that the current discharge temperature of the compressor is lower than the target discharge temperature, it is determined that the discharge temperature of the compressor is lower and the outdoor heat exchanger cannot be defrosted effectively, so that the opening degree of the electronic expansion valve is controlled to decrease from the initial defrosting opening degree every second preset time by a second opening degree until the opening degree of the electronic expansion valve reaches a second target defrosting opening degree, so as to reduce the refrigerant circulation amount, increase the temperature of the outdoor coil, achieve the purpose of quick defrosting, and improve the defrosting effect. And, by adjusting the opening degree of the electronic expansion valve in a stepwise decreasing manner, the stability of the operation of the air conditioner may be improved.
In some embodiments, the second target defrost opening Kmin takes the following value: kmin is less than or equal to 0 step and less than or equal to 200 steps, for example, Kmax can be 0 step, 20 steps, 150 steps and 200 steps. Therefore, the value range of the second target defrosting opening degree Kmin is set, the refrigerant circulation volume can be effectively reduced, the temperature of the outdoor coil pipe is improved, the purpose of quick defrosting is achieved, and the defrosting effect is ensured.
In some embodiments, the second preset time t2 is: 0s < t2 ≦ 60s, e.g., t2 may be 1s, 30s, 40s, 60 s; the value of the second opening K2 is: the K2 is more than or equal to 1 step and less than or equal to 60 steps, for example, the K2 can be 1 step, 10 steps, 40 steps and 60 steps. Therefore, the value range of the second preset time and the value range of the second opening degree are set, the fluctuation influence caused by the change of the opening degree can be further reduced, and the running stability of the air conditioner is improved.
In some embodiments, before obtaining the current compressor discharge temperature, the method of the embodiments of the present invention further includes obtaining an outdoor coil temperature, and when it is determined that the outdoor coil temperature is less than or equal to the defrosting target coil temperature and lasts for a third preset time, it indicates that a frost formation phenomenon occurs on a surface of the outdoor heat exchanger, so that in order to ensure a heating effect and avoid excessive frost condensation, the air conditioner needs to be controlled to enter a defrosting mode to defrost.
Wherein, the value of defrosting target coil pipe temperature T0 is: t0. ltoreq. T15 ℃ at-8 ℃ C., for example T0 may be-8 ℃ C., -9 ℃ C., -10 ℃ C., -15 ℃.
In some embodiments, controlling the air conditioner to enter a defrost mode includes controlling the compressor to stop operating; after the fourth preset time, controlling the indoor fan and the outdoor fan to stop running so as to avoid the temperature reduction of the outdoor heat exchanger, defrosting by utilizing the heat of the outdoor environment, reducing energy consumption, simultaneously avoiding the reduction of the indoor temperature and influencing user experience, and controlling the opening of the electronic expansion valve to be the initial defrosting opening; after the fifth preset time, controlling the four-way valve to be powered off so as to change the flow direction of the refrigerant flowing out of the exhaust port of the compressor and increase the temperature of the outdoor coil pipe; and after the sixth preset time, the compressor is controlled to start, and the compressor is controlled to operate to the defrosting frequency so as to defrost the outdoor heat exchanger and avoid the influence of excessive frost condensation on the heating effect.
The value of the fourth preset time t4 is as follows: 0s < t4 ≦ 60s, e.g., t4 may be 1s, 30s, 40s, 60 s; the value of the fifth preset time t5 is: 0s < t5 ≦ 120s, e.g., t5 may be 1s, 22s, 50s, 120 s; the value of the sixth preset time t6 is: 0s < t6 ≦ 180s, for example t6 may be 1s, 55s, 110s, 180 s.
The following describes a defrosting control method of an air conditioner according to an embodiment of the present invention with reference to fig. 2, and the specific steps are as follows.
In step S4, the compressor is turned off to stop the heating mode.
And step S5, the indoor fan and the outdoor fan are controlled to be closed after the time delay of t4 seconds, and the opening degree of the electronic expansion valve is adjusted to be the initial defrosting opening degree K0. Among them, t4 is preferably 10 s.
And step S6, delaying t5 seconds to control the four-way valve to be powered off. Among them, t5 is preferably 20 s.
And step S7, delaying t6 seconds to control the start of the compressor and running to the defrosting frequency. Among them, t6 is preferably 60 s.
In step S8, the initial defrost opening K0 is maintained for t0 seconds (counting is started after the press is operated), and the initial opening is ended. Wherein the value of t0 is 0s < t1 ≤ 120s, preferably 30 s; k0 is preferably 200 steps.
Step S9, it is determined whether the current compressor discharge temperature is greater than the target discharge temperature. If yes, go to step S10; if not, step S11 is executed.
And step S10, opening the electronic expansion valve for K1 steps every t1 seconds to increase the refrigerant circulation volume, wherein the maximum defrosting opening is the first target defrosting opening Kmax step. Among them, t1 is preferably 30 s; k1 is preferably 10 steps; kmax is preferably 480 steps.
And step S11, closing the electronic expansion valve for K2 steps every t2 seconds to increase the temperature of the external coil, and closing the electronic expansion valve for M times at most, wherein the minimum defrosting opening is a second target defrosting opening Kmin step. Wherein, the values of M are as follows: m is more than or equal to 1 and less than or equal to 30, preferably 12; t2 is preferably 30 s; k2 is preferably 10 steps; kmin is preferably 80 steps.
Therefore, according to the defrosting control method of the air conditioner in the embodiment of the invention, the opening degree of the electronic expansion valve is adjusted in a gradually increasing or decreasing mode, so that the buffering effect can be achieved, the stability of the system is improved, the opening degree of the electronic expansion valve is controlled by comparing the current exhaust temperature of the compressor with the target exhaust temperature, the purpose of quick defrosting can be achieved, and the defrosting effect is improved.
In a second embodiment of the present invention, as shown in fig. 3, an air conditioner 10 includes a compressor 1, an indoor fan 2, an outdoor fan 3, an electronic expansion valve 4, a four-way valve 5, a first temperature sensor 6, a second temperature sensor 7, and a controller 8.
The first temperature sensor 6 is used for acquiring the current exhaust temperature of the compressor; the second temperature sensor 7 is used for collecting the temperature of the outdoor coil; the controller 8 is connected to the first temperature sensor 6 and the second temperature sensor 7, respectively, for executing the defrosting control method of the air conditioner provided in the above embodiment.
It should be noted that the specific implementation manner of the controller 8 according to the embodiment of the present invention is similar to the specific implementation manner of the defrosting control method of the air conditioner according to any of the above embodiments of the present invention, and please refer to the description of the method part specifically, and details are not described here again in order to reduce redundancy.
According to the air conditioner 10 of the embodiment of the invention, the controller 8 adopts the defrosting control method of the air conditioner provided by the embodiment, so that the stability of the system during defrosting can be improved, and the defrosting effect can be improved.
An embodiment of a third aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program is executed to implement the defrosting control method of the air conditioner provided by the above-mentioned embodiment.
In the description of this specification, any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of custom logic functions or processes, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A defrosting control method of an air conditioner is characterized by comprising the following steps:
acquiring the current exhaust temperature of the compressor;
determining that the current compressor discharge temperature is greater than a target discharge temperature;
and controlling the opening degree of the electronic expansion valve to increase a first opening degree every a first preset time from the initial defrosting opening degree until the opening degree of the electronic expansion valve reaches a first target defrosting opening degree.
2. The air conditioner defrost control method of claim 1, wherein the first target defrost opening Kmax takes a value of: kmax is more than or equal to 400 steps and less than or equal to 480 steps.
3. The defrosting control method of an air conditioner according to claim 1, wherein the first preset time t1 takes a value of: 0s < t1 is not more than 60s, and the value of the first opening K1 is as follows: k1 is more than or equal to 1 step and less than or equal to 60 steps.
4. The defrost control method of an air conditioner according to claim 1, further comprising:
determining that the current compressor discharge temperature is less than the target discharge temperature;
and controlling the opening degree of the electronic expansion valve to be reduced by a second opening degree every second preset time from the initial defrosting opening degree until the opening degree of the electronic expansion valve reaches a second target defrosting opening degree.
5. The air conditioner defrosting control method according to claim 4, wherein the second target defrosting opening Kmin takes a value of: kmin is more than or equal to 0 step and less than or equal to 200 steps.
6. The defrosting control method of an air conditioner according to claim 4, wherein the second preset time t2 takes a value of: 0s < t2 is not more than 60s, and the value of the second opening K2 is as follows: k2 is more than or equal to 1 step and less than or equal to 60 steps.
7. The defrost control method of an air conditioner according to claim 1, wherein before acquiring the current compressor discharge temperature, the method further comprises:
acquiring the temperature of an outdoor coil pipe;
determining that the temperature of the outdoor coil is less than or equal to the temperature of the defrosting target coil for a third preset time;
and controlling the air conditioner to enter a defrosting mode.
8. The defrost control method of an air conditioner according to claim 7, wherein controlling the air conditioner to enter a defrost mode comprises:
controlling the compressor to stop running;
after a fourth preset time, controlling the indoor fan and the outdoor fan to stop running, and controlling the opening of the electronic expansion valve to be the initial defrosting opening;
after the fifth preset time, controlling the four-way valve to be powered off;
and after the sixth preset time, controlling the compressor to start, and controlling the compressor to run to the defrosting frequency.
9. An air conditioner, comprising:
the system comprises a compressor, an indoor fan, an outdoor fan, an electronic expansion valve and a four-way valve;
the first temperature sensor is used for acquiring the current exhaust temperature of the compressor;
the second temperature sensor is used for acquiring the temperature of the outdoor coil pipe;
a controller connected to the first temperature sensor and the second temperature sensor, respectively, for performing the defrosting control method of the air conditioner according to any one of claims 1 to 8.
10. A computer-readable storage medium, having a computer program stored thereon, wherein the computer program is executed to implement the defrosting control method of an air conditioner according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110295604.3A CN113074452A (en) | 2021-03-19 | 2021-03-19 | Defrosting control method of air conditioner, air conditioner and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110295604.3A CN113074452A (en) | 2021-03-19 | 2021-03-19 | Defrosting control method of air conditioner, air conditioner and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113074452A true CN113074452A (en) | 2021-07-06 |
Family
ID=76613878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110295604.3A Pending CN113074452A (en) | 2021-03-19 | 2021-03-19 | Defrosting control method of air conditioner, air conditioner and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113074452A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0966736A (en) * | 1995-06-23 | 1997-03-11 | Denso Corp | Air conditioner for vehicle |
| JP2004325030A (en) * | 2003-04-28 | 2004-11-18 | Fujitsu General Ltd | Control method of air conditioner |
| JP2014020730A (en) * | 2012-07-23 | 2014-02-03 | Corona Corp | Air conditioner |
| CN104019531A (en) * | 2014-05-30 | 2014-09-03 | 广东美的制冷设备有限公司 | Defrosting method of air-conditioner and air-conditioner |
| CN104633835A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Defrosting control method for air conditioner |
| CN109654678A (en) * | 2018-11-13 | 2019-04-19 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN109798626A (en) * | 2019-01-07 | 2019-05-24 | 广东美的暖通设备有限公司 | The control method and device of the electric expansion valve of outer machine heat exchanger |
| CN110500746A (en) * | 2018-05-18 | 2019-11-26 | 青岛海尔空调器有限总公司 | The control method of the electronic expansion valve opening of air conditioner |
| CN111023455A (en) * | 2019-12-26 | 2020-04-17 | Tcl空调器(中山)有限公司 | Defrosting control method, defrosting control device, air conditioner and readable storage medium |
| CN111981641A (en) * | 2020-08-20 | 2020-11-24 | 青岛海信日立空调系统有限公司 | Air conditioner defrosting control method and air conditioner system |
| CN112444004A (en) * | 2020-11-30 | 2021-03-05 | 青岛海信日立空调系统有限公司 | Air conditioning device |
-
2021
- 2021-03-19 CN CN202110295604.3A patent/CN113074452A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0966736A (en) * | 1995-06-23 | 1997-03-11 | Denso Corp | Air conditioner for vehicle |
| JP2004325030A (en) * | 2003-04-28 | 2004-11-18 | Fujitsu General Ltd | Control method of air conditioner |
| JP2014020730A (en) * | 2012-07-23 | 2014-02-03 | Corona Corp | Air conditioner |
| CN104633835A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Defrosting control method for air conditioner |
| CN104019531A (en) * | 2014-05-30 | 2014-09-03 | 广东美的制冷设备有限公司 | Defrosting method of air-conditioner and air-conditioner |
| CN110500746A (en) * | 2018-05-18 | 2019-11-26 | 青岛海尔空调器有限总公司 | The control method of the electronic expansion valve opening of air conditioner |
| CN109654678A (en) * | 2018-11-13 | 2019-04-19 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN109798626A (en) * | 2019-01-07 | 2019-05-24 | 广东美的暖通设备有限公司 | The control method and device of the electric expansion valve of outer machine heat exchanger |
| CN111023455A (en) * | 2019-12-26 | 2020-04-17 | Tcl空调器(中山)有限公司 | Defrosting control method, defrosting control device, air conditioner and readable storage medium |
| CN111981641A (en) * | 2020-08-20 | 2020-11-24 | 青岛海信日立空调系统有限公司 | Air conditioner defrosting control method and air conditioner system |
| CN112444004A (en) * | 2020-11-30 | 2021-03-05 | 青岛海信日立空调系统有限公司 | Air conditioning device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2010137344A1 (en) | Air-conditioning device | |
| US10746449B2 (en) | Method for controlling air conditioner | |
| JP2002147823A (en) | Air conditioner | |
| JPWO2012168971A1 (en) | Refrigeration air conditioner | |
| CN113405245A (en) | Method for controlling air conditioner, storage medium and air conditioner | |
| EP1431677B1 (en) | Air conditioner | |
| CN113175731B (en) | Defrosting control method of air conditioner and air conditioner | |
| CN113091215B (en) | Heating control method of air conditioner | |
| CN111033152B (en) | Refrigerating machine | |
| CN113405221A (en) | Air conditioner self-cleaning control method and device, storage medium and air conditioner | |
| CN111473496B (en) | Air conditioning system, control method and device thereof and storage medium | |
| CN115031351B (en) | Air conditioner and defrosting control method thereof | |
| CN113639408A (en) | Air conditioner and control method thereof | |
| CN115095955A (en) | Air conditioner and defrosting control method thereof | |
| CN111351190B (en) | Method for controlling air conditioner, indoor unit of air conditioner and non-temporary computer storage medium | |
| CN111503841A (en) | Method for controlling sterilization of air conditioner, air conditioner and storage medium | |
| CN112032941A (en) | Control method of air conditioner | |
| KR101203995B1 (en) | Air conditioner and Defrosting Driving Method thereof | |
| CN110709648B (en) | Air conditioner | |
| CN110319542B (en) | Unloading start-stop control method of large-displacement variable-frequency multi-split system | |
| JP5992076B1 (en) | Refrigeration cycle apparatus, refrigerator equipped with the refrigeration cycle apparatus, and defrosting method for refrigeration cycle apparatus | |
| CN115095956B (en) | Air conditioner and defrosting control method thereof | |
| CN113074452A (en) | Defrosting control method of air conditioner, air conditioner and storage medium | |
| KR20170092812A (en) | Air conditioner and a method for controlling the same | |
| JP2013231522A (en) | Heat pump device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant after: Hisense Air Conditioning Co.,Ltd. Address before: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant before: HISENSE (SHANDONG) AIR-CONDITIONING Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210706 |
|
| RJ01 | Rejection of invention patent application after publication |