CN110701729A - Air conditioner heating control method and device, air conditioner and computer readable storage medium - Google Patents
Air conditioner heating control method and device, air conditioner and computer readable storage medium Download PDFInfo
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- CN110701729A CN110701729A CN201911030335.7A CN201911030335A CN110701729A CN 110701729 A CN110701729 A CN 110701729A CN 201911030335 A CN201911030335 A CN 201911030335A CN 110701729 A CN110701729 A CN 110701729A
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- air conditioner
- heating control
- temperature
- control method
- disc
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- 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
Abstract
The invention provides an air conditioner heating control method, an air conditioner heating control device, an air conditioner and a computer readable storage medium, wherein the air conditioner heating control method comprises the following steps: the air conditioner operates in a heating mode and detects the temperature change rate of the outer disc; detecting the temperature of the inner disc; and determining whether the entering condition of the air conditioner heating control is met or not according to the temperature change rate of the outer disc and the temperature of the inner disc, and if so, entering the control process. When the heat exchanger on the outer side of the air conditioner frosts more thickly, the invention reduces the influence of the frost layer on the heating effect of the air conditioner and improves the use effect of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner heating control method and device, an air conditioner and a computer readable storage medium.
Background
With the improvement of the standard of living of people, the air conditioner becomes an essential household appliance for every family, especially in severe cold or cold areas with low daily average temperature. The air conditioner heats and operates in a low-temperature environment, when the outer side heat exchanger frosts, the frost layer can prevent heat transfer, the heating performance of the air conditioner can be reduced, and the using effect is affected.
Disclosure of Invention
The invention solves the problem that the frost layer influences the heating performance of the air conditioner.
In order to solve the above problems, the present invention provides a method and an apparatus for controlling heating of an air conditioner, and a computer readable storage medium, which reduce the influence of a frost layer on the heating effect of the air conditioner and improve the use effect of the air conditioner when the frost layer on an outer heat exchanger of the air conditioner is thick.
Therefore, the technical scheme adopted by the invention is as follows:
according to an aspect of the present invention, there is provided an air conditioner heating control method, including the steps of:
the air conditioner operates in a heating mode and detects the temperature change rate of the outer disc;
detecting the temperature of the inner disc;
and determining whether the entering condition of the air conditioner heating control is met or not according to the temperature change rate of the outer disc and the temperature of the inner disc, and if so, entering the control process.
The invention improves the use effect by controlling the heating operation of the air conditioner.
In some embodiments of the invention, prior to detecting the rate of change of temperature of the outer disc, the following steps are performed:
and detecting whether the continuous operation time of the compressor is greater than or equal to Tmin, and if so, entering a step of detecting the temperature change rate of the outer disc. This step can ensure the effectiveness of the subsequent steps.
In some embodiments of the present invention, the entry conditions of the air conditioning heating control include:
the temperature change rate of the outer disc is greater than or equal to a threshold A; meanwhile, the temperature of the inner disc is less than or equal to the threshold B.
The invention can distinguish whether the air conditioner has frosted thicker or not, and control the heating process of the air conditioner after frosting thicker, thereby improving the use effect of the air conditioner.
In some embodiments of the invention, the control process comprises:
increasing the operating frequency of the compressor to the hottest highest operating frequency FMAX according to a set rising rate on the basis of the current frequency; and/or the presence of a gas in the gas,
and detecting whether the internal electric auxiliary heating equipment of the air conditioner is started or not, and automatically starting the air conditioner if the internal electric auxiliary heating equipment is not started.
After the frost is formed thickly, the operating frequency of the compressor is increased, the work of the compressor is increased, and the using effect is improved.
In some embodiments of the present invention, the control process is exited when the air conditioner enters the defrosting process or changes the operation mode.
According to another aspect of the present invention, there is also provided an air conditioner heating control apparatus, including:
the outer disc temperature detection module is used for detecting the temperature change rate of the outer disc;
the inner disc temperature detection module is used for detecting the temperature of the inner disc;
and the controller is used for determining whether the entering conditions of the air conditioner heating control are met according to the detection results of the outer disc temperature detection module and the inner disc temperature detection module.
In some embodiments of the present invention, the air-conditioning heating control apparatus further includes:
the timing module is connected with the controller and used for detecting the continuous operation time of the compressor;
the controller comprises a judging module for judging whether the continuous operation time of the compressor is more than or equal to Tmin, judging whether the temperature change rate of the outer disc is more than or equal to a threshold value A, and judging whether the temperature of the inner disc is less than or equal to a threshold value B.
In some embodiments of the present invention, the air-conditioning heating control apparatus further includes:
the frequency increasing module is connected with the controller and used for increasing the operating frequency of the compressor to the hottest highest operating frequency FMAX according to a set increasing rate on the basis of the current frequency; and/or the presence of a gas in the gas,
and the inner machine electric auxiliary heating equipment is connected with the controller and is used for electrically heating air which is pre-flowed into the indoor machine.
According to another aspect of the present invention, there is also provided an air conditioner comprising a memory, a processor and a computer program stored on the memory and executable on the processor,
the processor realizes the steps defined by the air conditioner heating control method when executing the computer program; and/or the air conditioner heating control device is included.
According to another aspect of the present invention, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed, implements the steps of the air conditioner heating control method as described above.
Drawings
Fig. 1 is a schematic diagram illustrating a process of changing the temperature of an outer panel of an air conditioner according to an embodiment of the present invention at different operating frequencies.
Fig. 2 is a schematic step diagram of a heating control method of an air conditioner according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of different hottest maximum operating frequencies set by the air conditioner in different external environments according to the embodiment of the present invention.
Fig. 4 is a comparison graph of an operation capacity curve after the air conditioner heating control according to the embodiment of the present invention and an operation capacity curve of the existing air conditioner heating.
Fig. 5 is a schematic structural diagram of the air conditioner heating control device according to the embodiment of the present invention.
Detailed Description
The air conditioner operates the heating mode at lower external environment temperature, the heat exchanger outside the air conditioner frosts gradually, the frost layer can prevent to conduct heat, along with the continuous operation of air conditioner, the frost layer is the bodiness constantly, after the frost layer reaches certain thickness, the heating performance of air conditioner receives the influence on frost layer and descends, if the operation of air conditioner is not controlled this moment, will influence the result of use of air conditioner, consequently, need provide the control mode that the air conditioner heats at low temperature.
Before the present invention is described, a node where the frost layer affects the heating performance of the air conditioner will be described. As shown in fig. 1, fig. 1 is a schematic diagram illustrating a process of changing the temperature of an outer panel of an air conditioner at different operating frequencies. In fig. 1, the … … curve represents 90Hz,
the curve represents 95Hz, -the curve represents 100Hz,
the curve represents 105Hz, the horizontal axis represents time and the vertical axis represents the temperature of the outer disc.
As can be seen from the graph of fig. 1, the air conditioner operates in an early stage of the balancing process of the air conditioning system, in which the temperature of the outer panel is in an unstable variation stage; then the air conditioner operates stably, and the temperature of the inner plate and the temperature of the outer plate are in a stable and unchangeable state in the next period of time; then, the frost layer starts to influence the operation of the air conditioner, at a certain time node, the frost layer reaches a certain thickness, the temperature of the outer disc starts to decrease, and the temperature of the outer disc is lower and lower along with the thickening of the frost layer. The air conditioner operates at different frequencies, and the temperature change of the outer disk follows the change law. Here, the time node is defined as a point where the temperature of the outer panel decays fast, as shown by a black dot on each curve in fig. 1, it can be seen that the air conditioner operates at different frequencies, the frosting speed is different, and the time to reach the point where the temperature of the outer panel decays fast is different.
The following conclusions can be drawn in conjunction with the curves of fig. 1: the air conditioner has low running frequency, is frosted slowly, and takes longer time to reach the point where the temperature of the outer disc is attenuated quickly, but if the air conditioner reaches the point where the temperature of the outer disc is attenuated quickly, the frosting is thick at the moment, and the descending rate of the temperature of the outer disc is basically consistent no matter what the running frequency of the air conditioner is, namely, the slope of each curve is equal from the point where the temperature of the outer disc is attenuated quickly. It can be seen that the control of the heating operation of the air conditioner can be turned on according to the rate of change of the temperature of the outer panel.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Certain embodiments of the invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements.
In an embodiment of the present invention, an air conditioner heating control method is provided, as shown in fig. 2, including the following steps:
and acquiring a starting instruction of the compressor, and starting the air conditioner to operate in the heating mode.
The continuous operation time of the compressor is detected. When the air conditioner system is not frosted or frosted thinly, the heating performance of the air conditioner is not or hardly affected, and only when the frosting is thick (the air conditioner reaches the point where the temperature of the outer disc is attenuated quickly), the heating of the air conditioner needs to be controlled, so that the point where the temperature of the outer disc is attenuated quickly needs to be determined, namely, the change rate of the temperature of the outer disc is detected. As can be seen from fig. 1, the air conditioner is in an unstable stage within a period of time after starting to operate, and if the change rate of the temperature of the outer disc is directly detected in the unstable stage, deviation is easy to occur, so that, as an optimal implementation mode, the continuous operation time of the compressor can be detected first, the air conditioner operates stably after the compressor is started and operates at Tmin in the heating mode, T is generally 10 to 15, and the conventional air conditioner operates stably after being started for 10 to 15 min.
The rate of change of temperature of the outer disc is detected. The temperature change rate of the outer plate directly reflects the frosting condition, and the heating of the air conditioner is controlled when the frosting is thick, so that the point with the fast temperature attenuation of the outer plate is determined by detecting the temperature change rate of the outer plate.
The temperature of the inner disc is detected. The temperature of the inner plate can reflect the heating effect of the air conditioner, and generally, the heating effect of the air conditioner is considered to be sufficient when the temperature of the inner plate is more than 38 ℃.
And determining whether the entering condition of the air conditioner heating control is met according to the temperature change rate of the outer disc and the temperature of the inner disc. As described above, the heating of the air conditioner is not immediately controlled by the air conditioner when the air conditioner is turned on, but is controlled only when a certain condition is satisfied, and therefore, it is necessary to determine whether an entry condition for the air conditioner heating control is satisfied, and if so, the control process is entered, and if not, the control process is not entered.
The basic flow of the air conditioner heating control method is as follows:
detecting whether the continuous operation time of the compressor is greater than or equal to Tmin, and if so, entering the next step; if not, the continuous operation time of the compressor is continuously detected.
Detecting whether the temperature change rate of the outer disc is larger than or equal to A, if so, defining the temperature change rate as a point with faster temperature attenuation of the outer disc, and entering the next step; if not, the temperature change rate of the outer disk is continuously detected. Preferably, A is generally 1 ℃/min.
And detecting whether the temperature of the inner disc is less than or equal to B, if so, entering the next step, and if not, continuously detecting the temperature of the inner disc. Preferably, B is generally 38 ℃.
The operation frequency of the compressor is increased to the hottest highest operation frequency FMAX according to a set rising rate on the basis of the current frequency; and/or the presence of a gas in the gas,
and detecting whether the internal electric auxiliary heating equipment of the air conditioner is started or not, and automatically starting the air conditioner if the internal electric auxiliary heating equipment is not started. Preferably, the hottest maximum operating frequency FMAX is generally 110-. It should be noted that, as shown in fig. 3, when the air conditioner is in different external environments, the hottest maximum operating frequency FMAX set by the air conditioner is different.
Fig. 4 is a comparison graph of an operation capacity curve after air conditioner heating control and an operation capacity curve of the existing air conditioner heating, as shown in fig. 4, if the operation frequency of the compressor is 90Hz, when it is detected that the outer plate temperature is attenuated faster, the operation frequency is increased, the frosting rate (outer plate temperature reduction rate) is not affected, but the work of the compressor is increased, which is beneficial to increasing the heating amount, thereby increasing the heating effect. In fig. 4, the diamond shaped curve represents the 90Hz operating capacity, the portion of the curve outside the square box in the square curve represents the 90Hz operating capacity, and the portion of the curve inside the square box represents the operating capacity at which the operating frequency of the compressor has increased to 105Hz after the point at which the outer disc temperature decays more rapidly is reached.
In addition, the air conditioner enters the defrosting or the air conditioner changes the operation mode (such as the cooling mode or the ventilation mode) as the exit condition of the air conditioning heating control of the present invention. After exiting, the air conditioner enters the heating mode to operate next time, and the steps of the air conditioner heating control method are repeated.
According to the invention, whether the air conditioner is frosted thickly or not is distinguished, and after the air conditioner is frosted thickly, the working of the compressor is increased by improving the operating frequency of the compressor, so that the using effect is improved.
In an embodiment of the present invention, there is also provided an air conditioner heating control apparatus, as shown in fig. 5, including: the device comprises a timing module, an outer disc temperature detection module, an inner disc temperature detection module, a frequency increasing module, an inner machine electric auxiliary heating device and a controller.
The timing module is used for detecting the continuous operation time of the compressor; the outer disc temperature detection module is used for detecting the temperature change rate of the outer disc; the inner disc temperature detection module is used for detecting the temperature of the inner disc; the frequency increasing module is used for increasing the operating frequency of the compressor to the hottest highest operating frequency FMAX according to a set increasing rate on the basis of the current frequency; the inner electromechanical auxiliary heating device is used for electrically heating air which is pre-flowed into the indoor unit.
The controller controls the modules, and comprises a judging module for judging whether the continuous operation time of the compressor is more than or equal to Tmin, judging whether the temperature change rate of the outer disc is more than or equal to A, and judging whether the temperature of the inner disc is less than or equal to B; the controller also controls the frequency increasing module to increase the operating frequency of the compressor; and judging whether the internal electric auxiliary heating equipment of the air conditioner is started or not, and if not, automatically starting the air conditioner.
In the embodiment, an air conditioner is further provided, which includes a memory, a processor and a computer program stored in the memory and capable of running on the processor, and when the processor executes the computer program, the steps defined by the air conditioner heating control method as described above are realized; and/or the air conditioner heating control device is included.
In the present embodiment, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed, implements the steps of the air conditioner heating control method as set forth in the above-described present embodiment.
Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. In light of the above description, those skilled in the art should clearly recognize the air conditioner heating control method, apparatus, air conditioner, and computer-readable storage medium of the present invention.
It should be noted that unless specifically described or steps that must occur in sequence, the order of the steps is not limited to that listed above and may be varied or rearranged as desired. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.
It will be understood by those skilled in the art that all or part of the steps in the methods of the embodiments described above may be implemented by hardware instructions of a program, and the program may be stored in a computer-readable storage medium, where the storage medium includes Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), one-time Programmable Read-Only Memory (otp ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), compact disc Read-Only Memory (CD-ROM), or other disk memories, A tape memory, or any other medium readable by a computer that can be used to carry or store data.
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. An air conditioner heating control method is characterized by comprising the following steps:
the air conditioner operates in a heating mode and detects the temperature change rate of the outer disc;
detecting the temperature of the inner disc;
and determining whether the entering condition of the air conditioner heating control is met or not according to the temperature change rate of the outer disc and the temperature of the inner disc, and if so, entering the control process.
2. The air conditioner heating control method according to claim 1, wherein before detecting the temperature change rate of the outer panel, the following steps are performed:
and detecting whether the continuous operation time of the compressor is greater than or equal to Tmin, and if so, entering a step of detecting the temperature change rate of the outer disc.
3. The air conditioning heating control method according to claim 1, wherein the entry condition of the air conditioning heating control includes:
the temperature change rate of the outer disc is greater than or equal to a threshold A; at the same time, the user can select the desired position,
the temperature of the inner disc is less than or equal to a threshold value B.
4. The air conditioning heating control method according to claim 3, wherein the control process includes:
increasing the operating frequency of the compressor to the hottest highest operating frequency FMAX according to a set rising rate on the basis of the current frequency; and/or the presence of a gas in the gas,
and detecting whether the internal electric auxiliary heating equipment of the air conditioner is started or not, and automatically starting the air conditioner if the internal electric auxiliary heating equipment is not started.
5. The air conditioning heating control method according to claim 4, wherein the control process is exited when the air conditioner enters a defrosting process or changes an operation mode.
6. An air conditioner heating control device, characterized in that it includes:
the outer disc temperature detection module is used for detecting the temperature change rate of the outer disc;
the inner disc temperature detection module is used for detecting the temperature of the inner disc;
and the controller is used for determining whether the entering conditions of the air conditioner heating control are met according to the detection results of the outer disc temperature detection module and the inner disc temperature detection module.
7. The air conditioning heating control device according to claim 5, characterized by further comprising:
the timing module is connected with the controller and used for detecting the continuous operation time of the compressor;
the controller comprises a judging module for judging whether the continuous operation time of the compressor is more than or equal to Tmin, judging whether the temperature change rate of the outer disc is more than or equal to a threshold A, and judging whether the temperature of the inner disc is less than or equal to a threshold B.
8. The air conditioning heating control device according to claim 7, characterized by further comprising:
the frequency increasing module is connected with the controller and used for increasing the operating frequency of the compressor to the hottest highest operating frequency FMAX according to a set increasing rate on the basis of the current frequency; and/or the presence of a gas in the gas,
and the inner machine electric auxiliary heating equipment is connected with the controller and is used for electrically heating air which is pre-flowed into the indoor machine.
9. An air conditioner comprising a memory, a processor, and a computer program stored on the memory and executable on the processor,
the processor, when executing the computer program, implementing the steps defined by the air conditioner heating control method according to any one of claims 1-5; and/or
Comprising the air-conditioning and heating control device as claimed in claims 6 to 8.
10. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed, implements the steps of the air conditioner heating control method according to any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911030335.7A CN110701729A (en) | 2019-10-28 | 2019-10-28 | Air conditioner heating control method and device, air conditioner and computer readable storage medium |
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| CN201911030335.7A CN110701729A (en) | 2019-10-28 | 2019-10-28 | Air conditioner heating control method and device, air conditioner and computer readable storage medium |
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| CN111780346A (en) * | 2020-06-04 | 2020-10-16 | 海信（山东）空调有限公司 | Air conditioner heat exchange efficiency control method and air conditioner |
| CN113294891A (en) * | 2021-06-18 | 2021-08-24 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting control method and device, electronic equipment and storage medium |
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