CN110608519A - Air conditioner control method and system and air conditioner - Google Patents
Air conditioner control method and system and air conditioner Download PDFInfo
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- CN110608519A CN110608519A CN201910916477.7A CN201910916477A CN110608519A CN 110608519 A CN110608519 A CN 110608519A CN 201910916477 A CN201910916477 A CN 201910916477A CN 110608519 A CN110608519 A CN 110608519A
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- air conditioner
- outlet
- temperature
- air
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The application provides an air conditioner control method and system and an air conditioner. The method comprises the following steps of: when the air conditioner is in a single-outlet air-out refrigeration mode, detecting whether the temperature of an indoor evaporator tube is reduced to a first preset temperature, wherein the first preset temperature is higher than a shutdown protection temperature; if so, the opening degree of the throttle device is increased. According to the control method of the air conditioner, when the air conditioner operates in the single outlet air cooling mode, the flow of the refrigerant can be improved in a mode of increasing the opening degree of the throttling device (such as an electronic expansion valve of an outdoor unit) under the condition that the operating frequency of the compressor is not reduced, so that the condition that the temperature of a pipe of an indoor heat exchanger (namely an evaporator) is reduced to the shutdown protection temperature can be effectively avoided, the air conditioner is prevented from being shut down, therefore, the cooling effect in the single outlet air cooling mode is improved, and further, the user experience is improved.
Description
Technical Field
The application relates to the technical field of refrigeration equipment, in particular to a control method and system of an air conditioner and the air conditioner.
Background
For an indoor unit with an upper air outlet and a lower air outlet in an air conditioner, a general evaporator tube temperature sensor of the indoor unit is arranged at a lower position, when a lower air inlet of the indoor unit is closed, the air volume of the indoor unit is reduced, the heat exchange effect of the lower half part of an evaporator of the indoor unit is poor, at the moment, the temperature detected by the evaporator tube temperature sensor during refrigeration is relatively low, the whole machine is easy to shut down, in the related technology, the refrigeration capacity is reduced by reducing the running frequency of a compressor, so that the temperature of the evaporator tube temperature sensor during refrigeration is improved, and the purpose of delaying or not shutting down is achieved.
The following technical problems exist: the running frequency of the compressor is reduced, although the compressor is delayed or not stopped, the refrigeration effect is influenced, namely: the refrigeration effect becomes worse, which affects the user experience of the air conditioner.
Disclosure of Invention
The present application is directed to solving at least one of the above problems.
To this end, an object of the present application is to provide a control method of an air conditioner. The method can effectively prevent the temperature of the indoor heat exchanger (namely the evaporator) from being reduced to the shutdown protection temperature, and prevent the air conditioner from being shut down, so that the refrigeration effect in the single-outlet air-out refrigeration mode is improved, and further, the user experience is improved.
A second object of the present application is to provide a control system of an air conditioner.
A third object of the present application is to provide an air conditioner.
A fourth object of the present application is to propose a computer readable storage medium.
In order to achieve the above object, a first aspect of the present application discloses a method for controlling an air conditioner, an indoor unit of the air conditioner having a first outlet and a second outlet, the method comprising: when the air conditioner is in a single-outlet air-out refrigeration mode, detecting whether the temperature of an indoor evaporator tube is reduced to a first preset temperature, wherein the first preset temperature is higher than a shutdown protection temperature; if so, the opening degree of the throttle device is increased.
According to the control method of the air conditioner, when the air conditioner operates in the single outlet air cooling mode, the flow of the refrigerant can be improved in a mode of increasing the opening degree of the throttling device (such as an electronic expansion valve of an outdoor unit) under the condition of not reducing the operating frequency of the compressor, so that the condition that the temperature of a pipe of an indoor heat exchanger (namely an evaporator) is reduced to the shutdown protection temperature can be effectively avoided, the air conditioner is prevented from being shut down, therefore, the cooling effect in the single outlet air cooling mode is improved, and further, the user experience is improved.
In some examples, the single outlet cooling mode refers to a cooling mode in which one outlet of the first outlet and the second outlet is closed and the other outlet is outlet, and the indoor evaporator tube temperature refers to an indoor evaporator tube temperature detected at the side of the one outlet.
In some examples, further comprising: when the air conditioner is in a single-outlet air cooling mode, determining a target exhaust temperature of the compressor according to a cooling working condition; and determining the increasing amount of the opening degree of the throttling device according to the target exhaust temperature of the compressor.
In some examples, the increasing the opening degree of the throttle device includes: the opening degree of the throttle device is increased in accordance with the increase amount of the opening degree of the throttle device.
The second aspect of this application discloses a control system of air conditioner, the indoor set of air conditioner has first air outlet and second air outlet, the system includes: the detection module is used for detecting whether the temperature of an indoor evaporator tube is reduced to a first preset temperature when the air conditioner is in a single outlet air cooling mode, wherein the first preset temperature is higher than the shutdown protection temperature; and the control module is used for increasing the opening degree of the throttling device when the temperature of the indoor evaporator tube is reduced to the first preset temperature.
According to the control system of the air conditioner, when the air conditioner operates in the single outlet air cooling mode, the flow of the refrigerant can be improved in a mode of increasing the opening degree of the throttling device (such as an outdoor unit electronic expansion valve) under the condition of not reducing the operating frequency of the compressor, so that the condition that the temperature of a pipe of an indoor heat exchanger (namely an evaporator) is reduced to the shutdown protection temperature can be effectively avoided, the air conditioner is prevented from being shut down, therefore, the cooling effect in the single outlet air cooling mode is improved, and further, the user experience is improved.
In some examples, the single outlet cooling mode refers to a cooling mode in which one outlet of the first outlet and the second outlet is closed and the other outlet is outlet, and the indoor evaporator tube temperature refers to an indoor evaporator tube temperature detected at the side of the one outlet.
In some examples, further comprising: and the determining module is used for determining the target exhaust temperature of the compressor according to the refrigeration working condition when the air conditioner is in the single-outlet air refrigeration mode, and determining the increase of the opening of the throttling device according to the target exhaust temperature of the compressor.
In some examples, the control module is configured to increase the opening degree of the throttle device according to an increase amount of the opening degree of the throttle device.
A third aspect of the present application discloses an air conditioner, which includes a memory, a processor, and a control program of the air conditioner, which is stored in the memory and can be run on the processor, and when the processor executes the control program of the air conditioner, the control method of the air conditioner according to the first aspect is implemented. When the air conditioner operates in the single-outlet air-out refrigeration mode, the flow of the refrigerant can be improved in a mode of increasing the opening degree of a throttling device (such as an outdoor unit electronic expansion valve) under the condition of not reducing the operation frequency of the compressor, so that the temperature of a pipe of an indoor heat exchanger (namely an evaporator) can be effectively prevented from being reduced to a shutdown protection temperature, the air conditioner is prevented from being shut down, the refrigeration effect in the single-outlet air-out refrigeration mode is improved, and further, the user experience is improved.
A fourth aspect of the present application discloses a computer-readable storage medium on which a control program of an air conditioner is stored, the control program of the air conditioner realizing the control method of the air conditioner according to the first aspect described above when executed by a processor.
Additional aspects and advantages of the present application 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 present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application 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 control method of an air conditioner according to an embodiment of the present application;
fig. 2 is a schematic view of an indoor unit of an air conditioner according to an embodiment of the present application;
fig. 3 is a schematic view of a refrigeration system of an air conditioner according to an embodiment of the present application;
fig. 4 is a block diagram illustrating a control system of an air conditioner according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The following describes a control method and system of an air conditioner and the air conditioner according to an embodiment of the application with reference to the accompanying drawings.
Before describing a control method and system of an air conditioner and the air conditioner according to an embodiment of the present application, an indoor unit of the air conditioner and a refrigeration system of the air conditioner will be described first.
As shown in fig. 2, an indoor unit 1 (referred to as an indoor unit) of an air conditioner includes a first air outlet and a second air outlet, in a specific example, the first air outlet is, for example, an upper air outlet 2 located at an upper position, and the second air outlet is, for example, a lower air outlet 3 located at a lower position. Go up air outlet 2 and air outlet 3 down and can open the air supply simultaneously, also can open one of them air outlet air supply and another air outlet closes, for example: go up air outlet 2 and open the air supply and lower air outlet 3 closes, this kind of refrigeration mode that one of them air outlet air supply and another air outlet is closed is called single mouthful of air-out refrigeration mode, promptly: the single outlet cooling mode refers to a cooling mode in which one of the first outlet and the second outlet is closed and the other outlet is exhausted, and accordingly, the indoor evaporator tube temperature refers to the indoor evaporator tube temperature detected by the side of the one outlet.
As shown in fig. 3, the refrigeration system includes a compressor 4, a discharge gas sensor 5, a four-way selector valve 6, a condenser 7 (i.e., an outdoor heat exchanger), an electronic expansion valve 8, an evaporator tube temperature sensor 9, and an evaporator 10 (i.e., an indoor heat exchanger). The evaporator tube temperature sensor 9 is used for detecting the temperature of the indoor evaporator tube, and the exhaust gas sensor 5 is used for detecting the exhaust gas temperature of the compressor.
Namely: the upper air outlet 2 is opened to supply air, the lower air outlet 3 is closed, and the temperature of the indoor evaporator tube is detected by the evaporator tube temperature sensor 9 positioned on the lower air outlet side in fig. 3.
In a specific example, taking the indoor unit 1 with the upper outlet 2 and the lower outlet 3 shown in fig. 2 as an example, in a normal case, in a single-outlet cooling mode, the upper outlet 2 supplies air and the lower outlet 3 is closed, at this time, the air volume will be smaller compared with the case of supplying air simultaneously through two outlets, and, in combination with fig. 3, the heat exchange effect of the lower half portion of the evaporator 10 will be poor, in this case, since the evaporator tube temperature sensor is usually disposed on the lower outlet 3 side, the temperature of the indoor evaporator tube detected by the evaporator tube temperature sensor during cooling will be relatively low, so that the whole unit is easy to stop, that is: the shutdown temperature is easily reached, i.e., the indoor evaporator tube temperature is easily lowered to a preset shutdown temperature, and thus, shutdown.
The control method of the air conditioner can effectively avoid shutdown while ensuring the refrigeration effect. Specifically, as shown in fig. 1, the present invention is a flowchart of a control method of an air conditioner according to an embodiment of the present application. As shown in fig. 1, a control method of an air conditioner according to an embodiment of the present application includes:
s101: when the air conditioner is in a single-outlet air-out refrigeration mode, whether the temperature of an indoor evaporator tube is reduced to a first preset temperature or not is detected, wherein the first preset temperature is higher than the shutdown protection temperature.
Wherein, shut down the protection temperature and mean that when the interior evaporator tube temperature dropped to a specific temperature, the air conditioner shut down, promptly: critical temperature at the time of stopping cooling, for example: the shutdown protection temperature is 2 ℃.
S102: if so, the opening degree of the throttle device is increased. For example: the throttle means comprises an electronic expansion valve 8, the opening degree of the electronic expansion valve 8 is increased.
According to the control method of the air conditioner, when the air conditioner operates in the single outlet air cooling mode, the flow of the refrigerant can be improved in a mode of increasing the opening degree of the throttling device (such as an outdoor unit electronic expansion valve) under the condition of not reducing the operating frequency of the compressor, so that the condition that the temperature of a pipe of an indoor heat exchanger (namely an evaporator) is reduced to the shutdown protection temperature can be effectively avoided, the air conditioner is prevented from being shut down, therefore, the cooling effect in the single outlet air cooling mode is improved, and further, the user experience is improved.
In a specific example, the method further comprises: when the air conditioner is in a single-outlet air cooling mode, determining the target exhaust temperature of the compressor according to the cooling working condition; the amount of increase in the opening degree of the throttle device is determined according to the compressor target discharge temperature. Further, increasing the opening degree of the throttle device includes: the opening degree of the throttle device is increased according to the increase amount of the opening degree of the throttle device.
For example: the opening degree control formula of the electronic expansion valve during refrigeration is as follows: the target compressor discharge temperature is constant a + compressor operating frequency + constant b + outdoor ambient temperature, and the opening degree of the electronic expansion valve is controlled by setting the target compressor discharge temperature.
Under the condition of the minimum refrigeration working condition (namely: the indoor dry/wet bulb temperature: 21/15, the outdoor dry/wet bulb temperature: 21/-), when the upper air outlet 2 and the lower air outlet 3 are both opened for refrigeration operation, the operation frequency of the compressor is 30Hz, the constant a is 0.7, the constant b is 2, the ambient temperature of the outdoor unit is 21 ℃, the target exhaust temperature of the compressor is 44 ℃, the opening degree of the electronic expansion valve inquired by special experimental equipment is 100 steps, the temperature of the evaporator tube of the indoor unit is 10 ℃, only the lower air outlet 3 is closed, when the temperature of the evaporator tube of the indoor unit is reduced to 5 ℃, the opening degree of the electronic expansion valve is started to be adjusted, other parameters are not changed, the target exhaust temperature of the compressor is reduced to 35 ℃, the opening degree of the stabilized electronic expansion valve is 130 steps, the temperature of the evaporator tube of the indoor unit is 8 ℃, the purposes of not reducing the operation frequency of the compressor and, the refrigeration effect is ensured.
Under the condition of standard refrigeration working conditions (indoor dry/wet bulb temperature: 27/19, outdoor dry/wet bulb temperature: 35/24), when the upper air outlet 2 and the lower air outlet 3 are both opened for refrigeration operation, the operation frequency of the compressor is 70Hz, the constant a is 0.7, the constant b is 11, the ambient temperature of the outdoor unit is 35 ℃, the target exhaust temperature of the compressor is 95 ℃, the opening degree of the electronic expansion valve inquired by special experimental equipment is 190 steps, the temperature of the evaporator tube of the indoor unit is 11 ℃, only the lower air outlet 3 is closed at the moment, when the temperature of the evaporator tube of the indoor unit is reduced to 6 ℃, the opening degree of the electronic expansion valve is started to be adjusted, other parameters are unchanged, the target exhaust temperature of the compressor is reduced to 75 ℃, the stable opening degree of the electronic expansion valve is 235 steps, the temperature of the evaporator tube of the indoor unit is 8 ℃, the purposes of not reducing the operation frequency of the compressor and, the refrigeration effect is ensured.
Under the condition of 43 ℃ refrigeration working condition (indoor dry/wet bulb temperature: 27/19, outdoor dry/wet bulb temperature: 43/26), when the upper air outlet 2 and the lower air outlet 3 are both opened for refrigeration operation, the operation frequency of the compressor is 60Hz, the constant a is 0.7, the constant b is 11, the ambient temperature of the outdoor unit is 43 ℃, the target exhaust temperature of the compressor is 96 ℃, the opening degree of the electronic expansion valve inquired by special experimental equipment is 170 steps, the temperature of the evaporator tube of the indoor unit is 12 ℃, only the lower air outlet 3 is closed at the moment, when the temperature of the evaporator tube of the indoor unit is reduced to 6 ℃, the opening degree of the electronic expansion valve is started to be adjusted, other parameters are not changed, the target exhaust temperature of the compressor is reduced to 80 ℃, the opening degree of the stabilized electronic expansion valve is 240 steps, the temperature of the evaporator tube of the indoor unit is 9 ℃, the purposes of not reducing the operation frequency of the compressor, the refrigeration effect is ensured.
Under the condition of 48 ℃ refrigeration working condition (indoor dry/wet bulb temperature: 32/23, outdoor dry/wet bulb temperature: 48/34), when the upper air outlet 2 and the lower air outlet 3 are both opened for refrigeration operation, the operation frequency of the compressor is 50Hz, the constant a is 0.7, the constant b is 11, the ambient temperature of the outdoor unit is 48 ℃, the target exhaust temperature of the compressor is 94 ℃, the opening degree of the electronic expansion valve inquired by special experimental equipment is 168 steps, the temperature of the evaporator tube of the indoor unit is 13 ℃, only the lower air outlet 3 is closed at the moment, when the temperature of the evaporator tube of the indoor unit is reduced to 5 ℃, the opening degree of the electronic expansion valve is started to be adjusted, other parameters are unchanged, the target exhaust temperature of the compressor is reduced to 75 ℃, the opening degree of the stabilized electronic expansion valve is 210 steps, the temperature of the evaporator tube of the indoor unit is 8 ℃, the purposes of not reducing the operation frequency of the compressor and, the refrigeration effect is ensured.
In the above description, the constant a and/or the constant b may be adjusted, so that when the single outlet air cooling mode is switched to, the increased amount of the opening degree of the electronic expansion valve to be lifted is determined according to the target exhaust temperature of the compressor after the lowering. Therefore, the running frequency of the compressor is not reduced, the temperature of the indoor heat exchanger (namely an evaporator) can be effectively prevented from being reduced to the shutdown protection temperature, the air conditioner is prevented from being shut down, the refrigeration effect in the single-outlet air-out refrigeration mode is improved, and the user experience is further improved.
Fig. 4 is a block diagram of a control system of an air conditioner according to an embodiment of the present application. As shown in fig. 4, a control system 400 of an air conditioner according to an embodiment of the present application includes: a detection module 410 and a control module 420.
The detection module 410 is configured to detect whether a temperature of an indoor evaporator tube is reduced to a first predetermined temperature when the air conditioner is in a single outlet air cooling mode, where the first predetermined temperature is greater than a shutdown protection temperature. The control module 420 is configured to increase the opening of the throttling device when the temperature of the indoor evaporator tube is decreased to the first predetermined temperature.
In one embodiment of the present application, the single outlet cooling mode refers to a cooling mode in which one outlet of the first outlet and the second outlet is closed and the other outlet is opened, and the indoor evaporator tube temperature refers to an indoor evaporator tube temperature detected at the side of the one outlet.
In one embodiment of the present application, further comprising: and the determining module (not shown in fig. 4) is used for determining the target exhaust temperature of the compressor according to the refrigeration working condition when the air conditioner is in the single outlet air refrigeration mode, and determining the increase of the opening of the throttling device according to the target exhaust temperature of the compressor.
In one embodiment of the present application, the control module 420 is configured to increase the opening degree of the throttle device according to an increase amount of the opening degree of the throttle device.
According to the control system of the air conditioner, when the air conditioner is operated in the single-outlet air-out refrigeration mode, the flow of the refrigerant can be improved in a mode of increasing the opening degree of the throttling device (such as an outdoor unit electronic expansion valve) under the condition of not reducing the operation frequency of the compressor, so that the condition that the temperature of a pipe of an indoor heat exchanger (namely an evaporator) is reduced to the shutdown protection temperature can be effectively avoided, the air conditioner is prevented from being shut down, therefore, the refrigeration effect in the single-outlet air-out refrigeration mode is improved, and further, the user experience is improved.
It should be noted that a specific implementation manner of the control system of the air conditioner in the embodiment of the present application is similar to a specific implementation manner of the control method of the air conditioner in the embodiment of the present application, and please refer to the description of the method portion specifically, which is not described herein again.
Further, an embodiment of the present application discloses an air conditioner, which includes a memory, a processor, and a control program of the air conditioner, which is stored in the memory and can be run on the processor, and when the processor executes the control program of the air conditioner, the control method of the air conditioner according to any one of the above embodiments is implemented. When the air conditioner operates in the single-outlet air-out refrigeration mode, the flow of the refrigerant can be improved in a mode of increasing the opening degree of a throttling device (such as an outdoor unit electronic expansion valve) under the condition of not reducing the operation frequency of the compressor, so that the temperature of a pipe of an indoor heat exchanger (namely an evaporator) can be effectively prevented from being reduced to a shutdown protection temperature, the air conditioner is prevented from being shut down, the refrigeration effect in the single-outlet air-out refrigeration mode is improved, and further, the user experience is improved.
In addition, other configurations and functions of the air conditioner according to the embodiment of the present application are known to those skilled in the art, and are not described herein.
The computer-readable storage medium of an embodiment of the present application has stored thereon a control program of an air conditioner that, when executed by a processor, implements a control method of an air conditioner as described in any one of the aforementioned embodiments of the present application.
The computer-readable storage medium described above may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM), a flash Memory, an optical fiber, a portable compact disc Read Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of Network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
While embodiments of the present application 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 application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A control method of an air conditioner is characterized in that an indoor unit of the air conditioner is provided with a first air outlet and a second air outlet, and the method comprises the following steps:
when the air conditioner is in a single-outlet air-out refrigeration mode, detecting whether the temperature of an indoor evaporator tube is reduced to a first preset temperature, wherein the first preset temperature is higher than a shutdown protection temperature;
if so, the opening degree of the throttle device is increased.
2. The control method of an air conditioner according to claim 1, wherein the single outlet cooling mode is a cooling mode in which one outlet of the first outlet and the second outlet is closed and the other outlet is opened, and the indoor evaporator tube temperature is detected at the side of the one outlet.
3. The control method of an air conditioner according to claim 1 or 2, further comprising:
when the air conditioner is in a single-outlet air cooling mode, determining a target exhaust temperature of the compressor according to a cooling working condition;
and determining the increasing amount of the opening degree of the throttling device according to the target exhaust temperature of the compressor.
4. The control method of an air conditioner according to claim 3, wherein said increasing the opening degree of the throttle device includes:
the opening degree of the throttle device is increased in accordance with the increase amount of the opening degree of the throttle device.
5. The utility model provides a control system of air conditioner which characterized in that, the indoor set of air conditioner has first air outlet and second air outlet, the system includes:
the detection module is used for detecting whether the temperature of an indoor evaporator tube is reduced to a first preset temperature when the air conditioner is in a single outlet air cooling mode, wherein the first preset temperature is higher than the shutdown protection temperature;
and the control module is used for increasing the opening degree of the throttling device when the temperature of the indoor evaporator tube is reduced to the first preset temperature.
6. The control system of an air conditioner according to claim 5, wherein the single outlet cooling mode is a cooling mode in which one outlet of the first outlet and the second outlet is closed and the other outlet is opened, and the indoor evaporator tube temperature is detected at the side of the one outlet.
7. The control system of an air conditioner according to claim 5 or 6, further comprising:
and the determining module is used for determining the target exhaust temperature of the compressor according to the refrigeration working condition when the air conditioner is in the single-outlet air refrigeration mode, and determining the increase of the opening of the throttling device according to the target exhaust temperature of the compressor.
8. The control system of an air conditioner according to claim 7, wherein the control module is configured to increase the opening degree of the throttle device in accordance with an increase amount of the opening degree of the throttle device.
9. An air conditioner, comprising a memory, a processor and a control program of the air conditioner stored in the memory and operable on the processor, wherein the processor implements the control method of the air conditioner according to any one of claims 1 to 4 when executing the control program of the air conditioner.
10. A computer-readable storage medium on which a control program of an air conditioner is stored, characterized in that the control program of the air conditioner realizes the control method of the air conditioner according to any one of claims 1 to 4 when executed by a processor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916477.7A CN110608519B (en) | 2019-09-26 | 2019-09-26 | Air conditioner control method and system and air conditioner |
| PCT/CN2020/097057 WO2021057119A1 (en) | 2019-09-26 | 2020-06-19 | Air conditioner control method, system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916477.7A CN110608519B (en) | 2019-09-26 | 2019-09-26 | Air conditioner control method and system and air conditioner |
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| CN110608519A true CN110608519A (en) | 2019-12-24 |
| CN110608519B CN110608519B (en) | 2022-03-25 |
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| WO (1) | WO2021057119A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207450A (en) * | 2020-01-14 | 2020-05-29 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
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| WO2021057119A1 (en) * | 2019-09-26 | 2021-04-01 | 广东美的制冷设备有限公司 | Air conditioner control method, system and air conditioner |
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| CN111397158A (en) * | 2020-03-31 | 2020-07-10 | 广东美的制冷设备有限公司 | Air conditioner and control method and device thereof |
| CN111397158B (en) * | 2020-03-31 | 2021-09-21 | 广东美的制冷设备有限公司 | Air conditioner and control method and device thereof |
| CN112396764A (en) * | 2020-11-11 | 2021-02-23 | 清华大学 | Throttling device-based household metering and charging method and device for multi-split air conditioner |
| CN112362197A (en) * | 2020-11-11 | 2021-02-12 | 清华大学 | Throttling device-based multi-online air-conditioning heat exchange heat metering method and device |
| CN113719987A (en) * | 2021-07-27 | 2021-11-30 | 珠海拓芯科技有限公司 | Control method and device of electronic expansion valve and air conditioner |
| CN115671590A (en) * | 2021-07-30 | 2023-02-03 | 广东美的制冷设备有限公司 | Mask, high-temperature-prevention protection control method and device thereof and storage medium |
| CN115671590B (en) * | 2021-07-30 | 2023-10-27 | 广东美的制冷设备有限公司 | Mask, high temperature protection control method and device thereof and storage medium |
| CN113945048A (en) * | 2021-11-03 | 2022-01-18 | 益鹏智能系统科技(上海)有限公司 | Stepless capacity regulation control method, system, terminal and storage medium for falling film ice water chiller |
| CN114061121A (en) * | 2021-11-03 | 2022-02-18 | 青岛海尔空调器有限总公司 | Method, device and storage medium for adjusting expansion valve |
| CN114484769A (en) * | 2022-02-17 | 2022-05-13 | 安徽奥克斯智能电气有限公司 | Air conditioner control method and device and air conditioner |
| CN114484769B (en) * | 2022-02-17 | 2023-08-11 | 安徽奥克斯智能电气有限公司 | Air conditioner control method and device and air conditioner |
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| CN110608519B (en) | 2022-03-25 |
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