CN113503621B - Air conditioner defrosting control method, air conditioner and computer readable storage medium - Google Patents
Air conditioner defrosting control method, air conditioner and computer readable storage medium Download PDFInfo
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- CN113503621B CN113503621B CN202110826387.6A CN202110826387A CN113503621B CN 113503621 B CN113503621 B CN 113503621B CN 202110826387 A CN202110826387 A CN 202110826387A CN 113503621 B CN113503621 B CN 113503621B
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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
- F24F11/62—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
- F24F11/80—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
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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
Abstract
The invention provides an air conditioner defrosting control method, an air conditioner and a computer readable storage medium, wherein the method comprises the following steps: entering a heating state; judging whether the following first defrosting entering conditions are met simultaneously: detecting that the indoor temperature change value is less than or equal to a first preset temperature value continuously for a first preset time; the difference value between the current inner tube temperature and the highest inner tube temperature in the current defrosting period is less than or equal to a second preset temperature value; and entering a defrosting state if the first defrosting entering condition is met. The air conditioner defrosting control method can be combined with the room heat load requirement, and the air conditioner is controlled to enter defrosting when the room temperature cannot be raised due to the fact that the capacity of the air conditioner is attenuated due to frosting, so that the room temperature is rapidly raised, and the heating comfort is improved.
Description
Technical Field
The invention relates to the technical field of air conditioner defrosting, in particular to an air conditioner defrosting control method, an air conditioner applying the air conditioner defrosting control method and a computer readable storage medium applying the air conditioner defrosting control method.
Background
When the domestic air conditioner heat pump air conditioner heats the operation under low temperature environment, outer quick-witted heat exchanger frosts easily, if untimely defrosting can influence the heating capacity and the reliability of air conditioner, current air conditioner control gets into the logic of defrosting and has two kinds usually, one kind is whether to get into the defrosting according to the judgement of operating time, another kind is whether to get into the defrosting according to outer tube temperature and outer environment temperature, but these two kinds of frostings can have following problem: the heat load requirement of a room is not considered, the problems of room temperature reduction, cold air blowing and the like can be caused in the defrosting process, and if the defrosting is carried out under the condition of low room temperature, the influence is greater, so that a user feels that the heating effect is poor.
In the existing scheme of the intelligent defrosting method based on the room heat load, the temperature of the indoor environment in a heating mode is detected firstly, then whether the temperature of the indoor environment meets the preset defrosting condition or not is judged, the defrosting mode is entered when the temperature meets the preset defrosting condition, and the defrosting mode is determined by judging the temperature rise amplitude of the temperature of the indoor environment when the temperature does not meet the preset defrosting condition. According to the scheme, a proper defrosting mode is selected based on the heat load state of the room, and the influence of the temperature reduction of the room is reduced. However, when the room heat load demand is large, after the capacity is attenuated to some extent due to frosting of the outdoor unit, the heating capacity of the air conditioner cannot raise the room temperature, but at this time, the air conditioner does not meet the defrosting condition and continues heating operation, so that the room cannot reach the comfortable temperature or the temperature set by the user quickly, and the heating comfort is affected.
Disclosure of Invention
The first purpose of the invention is to provide an air conditioner defrosting control method which combines the room heat load requirement, controls the air conditioner to enter defrosting when the room temperature cannot be raised due to the capacity attenuation of the air conditioner caused by frosting, so that the room temperature is rapidly raised, and the heating comfort is improved.
The second purpose of the invention is to provide an air conditioner which combines the room heat load requirement, controls the air conditioner to enter into defrosting when the room temperature cannot be raised due to the capacity attenuation of the air conditioner caused by frosting, so that the room temperature is rapidly raised, and the heating comfort is improved.
The third objective of the present invention is to provide a computer readable storage medium for controlling an air conditioner to enter into defrosting mode when the temperature of a room cannot be raised due to capacity attenuation of the air conditioner caused by frosting in combination with the heat load requirement of the room, so that the temperature of the room can be raised quickly, and the heating comfort can be improved.
In order to achieve the first object, the air conditioner defrosting control method provided by the invention comprises the following steps: entering a heating state; judging whether a first defrosting entering condition is met at the same time: detecting that the indoor temperature change value is less than or equal to a first preset temperature value continuously for a first preset time; the difference value between the current inner tube temperature and the highest inner tube temperature in the current defrosting period is less than or equal to a second preset temperature value; and entering a defrosting state if the first defrosting entering condition is met.
According to the air conditioner defrosting control method, when heating is carried out, whether the current indoor temperature can not be continuously increased is determined according to the indoor temperature change value, the difference value between the temperature of the front inner pipe and the highest inner pipe temperature in the current defrosting period is determined to be influenced by the frosting of the external unit, the load requirement of a room can not be met, the air conditioner is controlled to enter a defrosting state, the air conditioner is controlled to enter the defrosting state when the room temperature cannot be increased due to the fact that the capacity of the air conditioner is reduced due to frosting, the room temperature is rapidly increased, and the heating comfort is improved.
In a further aspect, the first entering defrost condition further comprises: the current indoor temperature is less than the preset comfortable temperature and/or the current indoor temperature is less than the set temperature of the user.
Therefore, in consideration of the use requirements of users, and in order to avoid the air conditioner from frequently entering a heating state, by judging whether the current indoor temperature is lower than the preset comfortable temperature and/or whether the current indoor temperature is lower than the set temperature of the users, the heating operation can be continued when the air conditioner is frosted and the capacity of the air conditioner is attenuated to cause that the room temperature cannot be increased, but the room meets the temperature required by the users.
In a further scheme, after entering a heating state, the method further comprises the following steps: and acquiring an indoor temperature change value once every second preset time interval.
Therefore, the indoor temperature change value is acquired once every second preset time interval, the reasonable detection time of the indoor temperature change value can be controlled, and the increase of system burden due to frequent detection is avoided.
In a further aspect, the first entering defrost condition further comprises: the heating operation reaches the preset heating time and is in a stable heating state.
It follows that the accuracy of the determination is improved by considering whether the air conditioner is in a stable heating state because the heating capacity is reduced by the influence of other operating factors of the air conditioner.
In a further aspect, stabilizing the heating state includes: the rotating speed change of the compressor is in a preset rotating speed range, and the fan wind shields of the indoor unit and the outdoor unit are kept unchanged.
Therefore, the rotating speed change of the compressor is in the preset rotating speed range, and the inner wind shield and the outer wind shield are not changed, so that the reduction of the heating capacity of the air conditioner is not caused by the parameter change, and the detection accuracy is improved.
In a further aspect, after determining whether the following first defrosting entry condition is satisfied at the same time, the method further includes: and if the first defrosting entering condition is not met, judging whether the second defrosting entering condition is met, and if so, entering a defrosting state.
Therefore, when any one of the first entering defrosting conditions is not met, the first entering defrosting condition is not met, and whether entering defrosting is needed or not needs to be judged according to the second entering defrosting condition, so that normal operation of the air conditioner is guaranteed.
In a further scheme, the step of judging whether the second defrosting entering condition is met comprises the following steps: and confirming the temperature range of the current outdoor environment temperature, and judging whether the current outer tube temperature is smaller than the outer tube temperature corresponding to the temperature range.
Therefore, the accuracy of judgment is improved by comparing the current outer tube temperature with the outer tube temperature corresponding to the temperature range.
In a further scheme, after entering a defrosting state, the method further comprises the following steps: and judging whether the temperature of the outer pipe is larger than a third preset temperature value or not after the third preset time, if so, exiting the defrosting state and entering the heating state.
Therefore, by detecting the temperature of the outer pipe, when the temperature of the outer pipe is greater than the third preset temperature value, the defrosting is considered to be finished, and the heating can be continued.
In order to achieve the second object of the present invention, the present invention provides an air conditioner including a processor and a memory, wherein the memory stores a computer program, and the computer program implements the steps of the air conditioner defrosting control method when being executed by the processor.
In order to achieve the third object of the present invention, the present invention provides a computer readable storage medium having stored thereon a computer program, which when executed by a controller, implements the steps of the air conditioner defrosting control method described above.
Drawings
FIG. 1 is a flow chart of an embodiment of an air conditioner defrosting control method of the invention.
FIG. 2 is a flowchart of a step of determining whether a first entering defrosting condition is satisfied simultaneously in an embodiment of the air conditioner defrosting control method of the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
The embodiment of the air conditioner defrosting control method comprises the following steps:
the air conditioner defrosting control method of the embodiment is an application program applied to an air conditioner and is used for defrosting control of the air conditioner.
As shown in fig. 1, in the present embodiment, when the air conditioner defrosting control method is in operation, step S1 is first executed to enter a heating state. When a heating instruction is obtained, the air conditioner enters a heating state, and the air conditioner enters the heating state according to conditions such as the current environment temperature, the user set temperature and the like, which is a technology known by those skilled in the art and is not described herein again.
After the heating state is entered, step S2 is executed to determine whether the first defrosting entry condition is satisfied at the same time. The first defrosting entry condition is a condition for determining that the indoor temperature of the air conditioner cannot be increased due to the degradation of the frosting occurrence capacity in the heating state.
In this embodiment, when determining whether the first defrosting entry condition is satisfied, step S21 is executed first to determine whether the heating operation reaches a preset heating time. The preset heating time is set to avoid frequent defrosting, and the value range of the preset heating time is 10-15 minutes.
If the heating operation reaches the preset heating time, step S22 is executed to determine whether the heating operation is in the stable heating state. The stable heating state is judged to confirm that the air conditioner is in the stable heating state, so that the change of the indoor temperature caused by the change of the running state is avoided, and the phenomenon of mistaken entering of defrosting is avoided. In this embodiment, stabilizing the heating state includes: the rotating speed change of the compressor is in a preset rotating speed range, and the fan wind shields of the indoor unit and the outdoor unit are kept unchanged. And when the heating operation reaches the preset heating time, detecting whether the parameters change or not and detecting whether the rotating speed change of the compressor and the change of the internal and external wind gears or not every 5 seconds, and when the rotating speed change of the compressor is in the preset rotating speed range and the wind gears of the fans of the indoor unit and the outdoor unit are kept unchanged, indicating that the air conditioner is in a continuous and stable heating state.
When it is determined that the indoor temperature is in the stable heating state, step S23 is executed to determine whether the indoor temperature variation value is detected to be less than or equal to the first preset temperature value for the first preset time. And after the heating state is entered, acquiring an indoor temperature change value once every second preset time. In the embodiment, the first preset time, the second preset time and the first preset temperature value are preset according to experimental data, wherein the first preset time is 1 minute, the second preset time is 5 seconds, and the first preset temperature value is 0 ℃. When the indoor temperature change value detected in the continuous first preset time is smaller than or equal to the first preset temperature value, the situation shows that the capacity of the current air conditioner is attenuated, the room load requirement cannot be met, and the indoor temperature cannot be increased.
If the indoor temperature variation value is detected to be less than or equal to the first preset temperature value for the continuous first preset time, step S24 is executed to determine whether the current indoor temperature is less than the preset comfortable temperature. The preset comfortable temperature is preset according to experimental data and represents a temperature comfortable for a general user, and in this embodiment, the value range of the preset comfortable temperature is 22 to 24 ℃. Although the air conditioner cannot increase the room temperature due to the fact that the capacity of the air conditioner is reduced due to frosting, if the indoor temperature reaches the comfortable temperature at the moment, heating operation can be continued, and frequent defrosting is avoided.
When it is determined that the current indoor temperature is less than the preset comfortable temperature, step S25 is executed to determine whether the current indoor temperature is less than the user-set temperature. The user-set temperature is an indoor target temperature set by the user through a remote control terminal or a control panel. Although the air conditioner cannot increase the room temperature due to the fact that the capacity of the air conditioner is reduced due to frosting, if the indoor temperature meets the set temperature of a user, heating operation can be continued, and frequent defrosting is avoided.
When the current indoor temperature is determined to be lower than the temperature set by the user, step S26 is executed to determine whether the difference between the current inner tube temperature and the highest inner tube temperature in the current defrosting cycle is lower than or equal to a second preset temperature value. The second preset temperature value is preset according to experimental data, and in the embodiment, the value range of the second preset temperature value is from-1 ℃ to-3 ℃. The defrosting period refers to a period that the air conditioner is heated and operated to enter a defrosting state, and defrosting is completed and the air conditioner enters a heating state again. Because a plurality of defrosting cycles occur in the heating process, and because the indoor temperatures are different, the highest inner tube temperature of each defrosting cycle is different, for example, the highest inner tube temperature of the first defrosting cycle is 48 ℃, the corresponding indoor temperature is 20 ℃, the highest inner tube temperature of the third defrosting cycle is 50 ℃, and the corresponding indoor temperature is 25 ℃. The highest inner tube temperature in the current defrosting period is used for judging, so that the accuracy of judging the defrosting state can be improved. When the current inner pipe temperature is lower than the highest inner pipe temperature in the current defrosting period by a certain value, the condition that the heating capacity is attenuated due to frosting of the outer unit is indicated.
When it is determined that the difference between the current inner tube temperature and the highest inner tube temperature in the current defrosting cycle is less than or equal to the second preset temperature value, step S27 is executed to determine that the first defrosting entry condition is satisfied. If any one of the conditions is not satisfied during the execution of the steps S21 to S26, the step S28 is executed to confirm that the first entering defrost condition is not satisfied.
It should be noted that step S24 and step S25 may be combined with other determination conditions alone as the first entering defrosting condition. In this embodiment, the step S24 and the step S25 exist simultaneously, because the user setting temperature may be higher than the preset comfortable temperature or lower than the comfortable temperature, and thus, the user' S requirement can be preferentially ensured by determining simultaneously. Further, those skilled in the art should appreciate that steps S21 through S26 may be performed out of order.
When it is confirmed that the first entering defrosting condition is satisfied, step S3 is executed to enter a defrosting state. After entering into the defrosting state, the related components of the air conditioner are controlled to perform defrosting operation, which may be a technique known to those skilled in the art and is not described herein again, for example, after entering into defrosting, the four-way valve is controlled to perform reversing, and the indoor fan and the outdoor fan stop operating.
If it is determined that the first entering defrosting condition is not satisfied, step S4 is executed to determine whether the second entering defrosting condition is satisfied. The second entering defrosting condition is different from the first entering defrosting condition, and in this embodiment, the step of determining whether the second entering defrosting condition is satisfied includes: and confirming the temperature range of the current outdoor environment temperature, and judging whether the current outer tube temperature is smaller than the outer tube temperature corresponding to the temperature range. Every temperature range all corresponds and is provided with the outer tube temperature of judging the entering defrosting state, compares through the outer tube temperature that current outer tube temperature and temperature range correspond, improves the accuracy of judgement. For example, the correspondence relationship between the temperature range in which the outdoor ambient temperature is located and the temperature of the outer tube is shown in the following table.
| Outdoor ambient temperature TOuter ring/℃ | Temperature T of outer tubeOuter tube/℃ |
| T outer ring less than-5 | C1 |
| -5. ltoreq. T outer ring < 0 | C2 |
| T is more than or equal to 0 and the outer ring is less than 5 | C3 |
| Outer ring with T being more than or equal to 5 | C4 |
Wherein, C1 < C2 < C3 < C4.
After entering the defrosting state, step S5 is executed to determine whether the temperature of the outer tube obtained for the third preset time is greater than the third preset temperature value. In the embodiment, the third preset time and the third preset temperature value are preset according to experimental data, and in the embodiment, the third preset time is 1 minute, and the third preset temperature value is 10 ℃.
And if the fact that the continuous third preset time duration is not met is confirmed, the obtained temperature of the outer tube is larger than the third preset temperature value, the step S5 is continuously executed, and continuous monitoring is carried out. And if the condition that the continuous third preset time is met is confirmed, the temperature of the outer pipe is greater than the third preset temperature value, the step S6 is executed, the defrosting state is exited, and the heating state is entered. And when the temperature of the outer pipe is higher than a third preset temperature value, the defrosting is considered to be finished, the heating can be continuously carried out, and the next defrosting period is started.
For a more clear description of the invention, the following examples are given:
in one embodiment, the preset heating time period is 10 minutes, the first preset time period is 1 minute, the preset comfortable temperature is 22 ℃, the user-set temperature is 25 ℃, the first preset temperature is 0 ℃, and the second preset temperature is-1 ℃. The air conditioner is started to perform heating operation, after the air conditioner is operated for 20 minutes, the indoor temperature change value is detected to be less than 0 within 1 minute continuously, the indoor temperature is 15 ℃ at the moment, the preset comfortable temperature is less than 22 ℃, the temperature is also less than 25 ℃ set by a user, meanwhile, the difference value between the current inner tube temperature and the highest inner tube temperature in the current defrosting period is detected to be less than or equal to minus 1 ℃, the rotating speed change of the compressor is detected to be within the preset rotating speed range, the wind gear of the fans of the indoor unit and the outdoor unit is kept unchanged, at the moment, the first entering defrosting condition is considered to be met, and the air conditioner is controlled to enter defrosting. After defrosting, when the temperature of the outer pipe is detected to be higher than 10 ℃ for 1min continuously, the defrosting is carried out, the air conditioner continues to enter heating operation, and the next defrosting period is carried out.
The embodiment of the air conditioner is as follows:
the air conditioner of the embodiment comprises a controller, and the steps in the air conditioner defrosting control method embodiment are realized when the controller executes a computer program.
For example, a computer program may be partitioned into one or more modules, which are stored in a memory and executed by a controller to implement the present invention. One or more of the modules may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program in the air conditioner.
The air conditioner may include, but is not limited to, a controller, a memory. Those skilled in the art will appreciate that an air conditioner may include more or fewer components, or combine certain components, or different components, e.g., an air conditioner may also include input output devices, network access devices, buses, etc.
For example, the controller may be a Central Processing Unit (CPU), other general purpose controller, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable Gate Array (FPGA) or other programmable logic device, discrete Gate or transistor logic, discrete hardware components, and so on. The general controller may be a microcontroller or the controller may be any conventional controller or the like. The controller is the control center of the air conditioner, and various interfaces and lines are used for connecting all parts of the whole air conditioner.
The memory may be used to store computer programs and/or modules, and the controller may implement various functions of the air conditioner by operating or executing the computer programs and/or modules stored in the memory and calling data stored in the memory. For example, the memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
Computer-readable storage medium embodiments:
the air conditioner integrated module of the above embodiment, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer-readable storage medium. Based on such understanding, all or part of the flow of the air conditioning defrosting control method embodiment may also be implemented by a computer program instructing related hardware to complete, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a controller, the steps of the air conditioning defrosting control method embodiment may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The storage medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, in accordance with legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunications signals.
Therefore, when the air conditioner defrosting control method is used for heating, whether the current indoor temperature can not be continuously increased is determined according to the indoor temperature change value, the influence of outdoor unit frosting is determined according to the difference value between the temperature of the front inner pipe and the temperature of the highest inner pipe in the current defrosting period, the load requirement of a room can not be met, the air conditioner is controlled to enter a defrosting state, the air conditioner is controlled to enter defrosting when the room temperature cannot be increased due to the fact that the capacity of the air conditioner is reduced due to frosting, the room temperature is rapidly increased, and heating comfort is improved.
It should be noted that the above is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept also fall within the protection scope of the present invention.
Claims (9)
1. An air conditioner defrosting control method is characterized in that: the method comprises the following steps:
entering a heating state;
judging whether a first defrosting entering condition is met at the same time:
detecting that the indoor temperature change value is less than or equal to a first preset temperature value continuously for a first preset time; the difference value between the current inner tube temperature and the highest inner tube temperature in the current defrosting period is less than or equal to a second preset temperature value; the current indoor temperature is lower than a preset comfortable temperature and/or the current indoor temperature is lower than a temperature set by a user;
and entering a defrosting state if the first defrosting entering condition is met simultaneously.
2. The air conditioner defrosting control method according to claim 1, characterized in that:
after the heating state is entered, the method further comprises the following steps:
and acquiring the indoor temperature change value once every second preset time interval.
3. The air conditioner defrosting control method according to claim 1, characterized in that:
the first entering defrost condition further comprises:
the heating operation reaches the preset heating time and is in a stable heating state.
4. The air conditioner defrosting control method according to claim 3, characterized in that:
the stable heating state includes: the rotating speed change of the compressor is in a preset rotating speed range, and the fan wind shields of the indoor unit and the outdoor unit are kept unchanged.
5. The air conditioner defrosting control method according to any one of claims 1 to 4, characterized in that:
after judging whether satisfy first entering condition of defrosting simultaneously, still include:
and if the first defrosting entering condition is not met, judging whether the second defrosting entering condition is met, and if so, entering a defrosting state.
6. The air conditioner defrosting control method according to claim 5, characterized in that:
the step of judging whether a second defrosting entry condition is satisfied includes:
and confirming the temperature range of the current outdoor environment temperature, and judging whether the current outer tube temperature is less than the outer tube temperature corresponding to the temperature range.
7. The air conditioner defrosting control method according to any one of claims 1 to 4, characterized in that:
after entering into the defrosting state, the method further comprises the following steps:
and judging whether the temperature of the outer pipe is larger than a third preset temperature value or not after the third preset time, if so, exiting the defrosting state and entering the heating state.
8. An air conditioner, includes treater and memory, its characterized in that: the memory stores a computer program which, when executed by the processor, implements the steps of the air conditioning defrost control method of any one of claims 1-7.
9. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program, when executed by a controller, implements the steps of the air conditioning defrost control method of any one of claims 1-7.
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| US4882908A (en) * | 1987-07-17 | 1989-11-28 | Ranco Incorporated | Demand defrost control method and apparatus |
| CN101430127A (en) * | 2008-11-27 | 2009-05-13 | 四川长虹电器股份有限公司 | Air conditioner control method in indoor heating state |
| CN108036463B (en) * | 2017-10-23 | 2020-07-10 | 宁波奥克斯电气股份有限公司 | Defrosting method of air conditioner |
| CN110836470B (en) * | 2018-08-17 | 2021-07-23 | 青岛海尔空调器有限总公司 | Defrosting control method for fixed-frequency air conditioner |
| CN109340996B (en) * | 2018-09-17 | 2021-07-06 | Tcl空调器(中山)有限公司 | Air conditioner control method, terminal, air conditioner and computer readable storage medium |
| CN110779164A (en) * | 2019-11-13 | 2020-02-11 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting control method and device, air conditioner and computer readable storage medium |
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