CN115701514A - Air conditioner control method, air conditioner, storage medium and device - Google Patents
Air conditioner control method, air conditioner, storage medium and device Download PDFInfo
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- CN115701514A CN115701514A CN202110883632.7A CN202110883632A CN115701514A CN 115701514 A CN115701514 A CN 115701514A CN 202110883632 A CN202110883632 A CN 202110883632A CN 115701514 A CN115701514 A CN 115701514A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioners and discloses an air conditioner control method, an air conditioner, a storage medium and a device.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner control method, an air conditioner, a storage medium and a device.
Background
Currently, when an air conditioner is actually used, there is a case where there is a difference in height between an indoor unit and an outdoor unit due to a building height. In the prior art, long pipes are often arranged to communicate an indoor unit with an outdoor unit.
However, in the above-mentioned method, when heating at a low temperature, the refrigerant cannot return to the compressor quickly due to the long refrigerant passage and the slow refrigerant flow rate, and thus the return pressure of the compressor is reduced quickly when the air conditioner is turned on, which affects the normal operation of the compressor.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an air conditioner control method, an air conditioner, a storage medium and a device, and aims to solve the technical problems that when the air conditioner provided with a long tubing in the prior art is used for heating at low temperature, the refrigerant cannot return to a compressor quickly due to a long refrigerant passage and a slow refrigerant flow rate, so that the return air pressure of the compressor is reduced quickly when the air conditioner is started, and the normal operation of the compressor is influenced.
In order to achieve the above object, the present invention provides an air conditioner control method applied to an air conditioner including: the air conditioner control method comprises the following steps of:
detecting the outdoor environment temperature when receiving an air conditioner starting instruction;
when the outdoor environment temperature is less than or equal to a preset temperature threshold, adjusting the opening of the electronic valve to a preset opening so as to control the return air pressure of the compressor; and
and after the interval of preset time, controlling the air conditioner to operate according to the air conditioner starting instruction.
Optionally, after the interval is preset time, after controlling the air conditioner to operate according to the air conditioner start instruction, the method further includes:
acquiring the running time of the air conditioner; and
and adjusting the opening of the electronic valve according to the running time so as to improve the running effect of the air conditioner.
Optionally, the adjusting the opening degree of the electronic valve according to the operation time includes:
searching a time interval corresponding to the running time; and
and determining a target opening according to the time interval, and adjusting the opening of the electronic valve to the target opening.
Optionally, after the adjusting the opening of the electronic valve according to the operation time, the method further includes:
acquiring the return air pressure of the compressor; and
and when the return air pressure is equal to a preset pressure threshold value, controlling the electronic valve to be closed.
Optionally, when the outdoor environment temperature is less than or equal to a preset temperature threshold, before adjusting the opening of the electronic valve to a preset opening, the method includes:
acquiring a height difference value between the indoor unit and the outdoor unit; and
and determining a preset opening according to the height difference.
Optionally, the determining a preset opening according to the height difference includes:
generating an opening correction value according to the outdoor environment temperature; and
and determining a preset opening according to the opening correction value and the height difference value.
Optionally, after detecting the outdoor ambient temperature when receiving the air conditioner start instruction, the method further includes:
and when the outdoor environment temperature is greater than a preset temperature threshold value, controlling the electronic valve to close.
Further, to achieve the above object, the present invention also proposes an air conditioner control device, the air conditioner including: the air conditioner comprises a compressor, an indoor unit, an outdoor unit and an electronic valve, wherein the compressor is communicated with the indoor unit through an air conditioner air pipe, the indoor unit is communicated with the outdoor unit through an air conditioner liquid pipe, one end of the electronic valve is communicated with the air conditioner air pipe, and the other end of the electronic valve is communicated with the air conditioner liquid pipe; the air conditioner further comprises a memory, a processor, and an air conditioner control program stored on the memory and executable on the processor, the air conditioner control program being configured to implement the air conditioner control method as described above.
Furthermore, in order to achieve the above object, the present invention also provides a storage medium having an air conditioner control program stored thereon, which when executed by a processor, implements the air conditioner control method as described above.
In addition, to achieve the above object, the present invention also provides an air conditioner control device including:
the temperature detection module is used for detecting the outdoor environment temperature when receiving an air conditioner starting instruction;
the opening adjusting module is used for adjusting the opening of the electronic valve to a preset opening when the outdoor environment temperature is less than or equal to a preset temperature threshold value so as to increase the return air pressure of the compressor;
and the operation control module is used for controlling the operation of the air conditioner according to the air conditioner starting instruction after a preset time interval.
According to the invention, the electronic valve is additionally arranged, one end of the electronic valve is communicated with the air-conditioning air pipe, the other end of the electronic valve is communicated with the air-conditioning liquid pipe, the outdoor environment temperature is detected when an air-conditioning starting instruction is received, the opening of the electronic valve is adjusted to the preset opening when the outdoor environment temperature is less than or equal to the preset temperature threshold value so as to control the air return pressure of the compressor, and the air-conditioning operation is controlled according to the air-conditioning starting instruction after the preset time interval, so that the electronic valve is opened when the air-conditioning operation is detected in a low-temperature environment, so that the refrigerant directly circulates between the air-conditioning air pipe and the air-conditioning liquid pipe, the flow path of the refrigerant is further shortened, the rapid reduction of the air return pressure of the compressor is avoided, and the stable operation of the compressor is ensured.
Drawings
FIG. 1 is a schematic diagram of an air conditioner in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a control method of an air conditioner according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram of an air conditioner according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an air conditioner with long piping according to an embodiment of the air conditioner control method of the present invention;
FIG. 5 is a schematic diagram illustrating a refrigerant flow direction of the air conditioner in a heating mode according to an embodiment of the method for controlling an air conditioner of the present invention;
fig. 6 is a schematic diagram illustrating a refrigerant flow direction of an air conditioner in a cooling mode according to an embodiment of the air conditioner control method of the present invention;
FIG. 7 is a flowchart illustrating a control method of an air conditioner according to a second embodiment of the present invention;
FIG. 8 is a flowchart illustrating a control method of an air conditioner according to a third embodiment of the present invention;
fig. 9 is a block diagram showing the construction of the first embodiment of the air conditioner controlling apparatus according to the present invention.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Compressor | 7 | High-pressure stop valve |
| 2 | Four- |
8 | Electronic valve |
| 3 | Low-pressure stop valve | 9 | |
| 4 | Air pipe of |
10 | |
| 5 | |
101 | |
| 51 | |
102 | Condenser |
| 52 | Evaporator with a |
11 | |
| 6 | Air conditioner liquid pipe | 12 | Pressure sensor |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an air conditioner in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the air conditioner may further include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), and the optional user interface 1003 may further include a standard wired interface and a wireless interface, and the wired interface for the user interface 1003 may be a USB interface in the present invention. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a Random Access Memory (RAM) or a Non-volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in fig. 1 is not intended to be limiting of the air conditioner and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, identified as one type of computer storage medium, may include an operating system, a network communication module, a user interface module, and an air conditioner control program.
In the air conditioner shown in fig. 1, the network interface 1004 is mainly used for connecting a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting user equipment; the air conditioner calls an air conditioner control program stored in the memory 1005 through the processor 1001 and executes the air conditioner control method provided by the embodiment of the present invention.
Based on the hardware structure, the embodiment of the air conditioner control method is provided.
Referring to fig. 2, fig. 2 is a flowchart illustrating a first embodiment of the air conditioner control method according to the present invention.
In the first embodiment, for convenience of understanding, description is made with reference to fig. 3, but this scheme is not limited. Fig. 3 is a schematic diagram of an air conditioner, which is composed of a compressor 1, a four-way valve 2, a low-pressure stop valve 3, an air conditioning air pipe 4, an indoor unit 5, an air conditioning liquid pipe 6, a high-pressure stop valve 7, an electronic valve 8, a throttling component 9, an outdoor unit 10, an outdoor temperature sensor 11 and a pressure sensor 12. The indoor unit 5 includes an indoor fan 51 and an evaporator 52, and the outdoor unit 10 includes an outdoor fan 101 and a condenser 102.
Step S10: and detecting the outdoor environment temperature when receiving an air conditioner starting instruction.
It should be understood that the execution subject of the present embodiment is the air conditioner, wherein the air conditioner may be a long-piping air conditioner. The long-pipe air conditioner may be an air conditioner provided with a long air conditioner liquid pipe and an air conditioner air pipe.
For ease of understanding, the description will be made with reference to fig. 4, but this scheme is not limited thereto. Fig. 4 is a schematic view of a long-piping air conditioner, in which a height difference exists between an indoor unit 5 and an outdoor unit 10 of the air conditioner, and thus a long air-conditioning liquid pipe 6 and an air-conditioning gas pipe 4 need to be provided between the indoor unit 5 and the outdoor unit 10 to exchange refrigerant between the indoor unit 5 and the outdoor unit 10, resulting in a long path through which refrigerant flows.
When the air conditioner works in a normal temperature or high temperature environment, the flow speed of the refrigerant is high, the passage is long, and the influence is not large. However, when the air conditioner operates in a low temperature environment, the flow rate of the refrigerant is slow, so that the time for the refrigerant to return to the compressor is further increased, the return air pressure of the compressor is rapidly reduced, and the normal operation of the compressor is affected.
In fig. 4, an electronic valve 8 is additionally arranged between the air-conditioning air pipe 4 and the air-conditioning liquid pipe 6, and when the air-conditioning device is detected to work in a low-temperature environment, the electronic valve 8 is opened, so that the refrigerant directly circulates between the air-conditioning air pipe 4 and the air-conditioning liquid pipe 6, the flowing path of the refrigerant is shortened, the return air pressure of the compressor is prevented from being reduced rapidly, and the stable operation of the compressor is ensured.
It should be noted that the air conditioner start instruction may be sent by a user through a user control interface of the air conditioner, or may be sent by the user through an air conditioner control application program on a preset terminal device, which is not limited in this embodiment. The preset terminal device can establish communication connection with the air conditioner in advance.
The air conditioner starting instruction may be an air conditioner heating mode starting instruction or an air conditioner cooling mode starting instruction, which is not limited in this embodiment.
It should be noted that the outdoor ambient temperature may be detected by an outdoor temperature sensor, and the outdoor ambient temperature may be an ambient temperature of a position where the outdoor unit is located. In this and other embodiments, the outdoor ambient temperature is denoted by T.
It is understood that the outdoor temperature sensor may be pre-installed on the air conditioner, or may be pre-installed in the area where the air conditioner is located, which is not limited in this embodiment.
Further, when the air conditioner operates in a normal-temperature or high-temperature environment, the flow rate of the refrigerant is high, and the condition that the return air pressure of the compressor is rapidly reduced is not easy to occur. In this case, in order to ensure the cooling or heating effect of the air conditioner, after the step S10, the method further includes:
and when the outdoor environment temperature is greater than a preset temperature threshold value, controlling the electronic valve to close.
It should be noted that the preset temperature threshold may be preset, for example, 2 ℃ is set as the preset temperature threshold. In this and other embodiments, T d Representing a preset temperature threshold.
It should be understood that the preset temperature threshold is used to determine whether the air conditioner is operating in a low temperature environment, at T>T d When the air conditioner operates in a normal-temperature or high-temperature environment, the flow speed of the refrigerant is high, and the condition that the return air pressure of the compressor is not easy to decrease rapidly is explained. In this case, in order to ensure the cooling or heating effect of the air conditioner, the electronic valve needs to be closed so that all the refrigerant flows into the indoor unit, and sufficient heat exchange is performed on the indoor unit side.
It can be understood that after the electronic valve is closed for a preset time, it can be judged whether the air conditioner starting instruction is an air conditioner heating starting mode instruction or an air conditioner cooling starting mode instruction. When the air conditioner starting instruction is an air conditioner heating starting mode instruction, controlling the air conditioner to start heating; and when the air conditioner starting instruction is an air conditioner refrigerating mode starting instruction, controlling the air conditioner to start refrigerating.
It should be noted that the preset time may be preset. For example, 3min is set as the preset time.
Step S20: and when the outdoor environment temperature is less than or equal to a preset temperature threshold value, adjusting the opening of the electronic valve to a preset opening so as to control the return air pressure of the compressor.
It can be understood that the preset temperature threshold is used for judging whether the air conditioner operates in a low-temperature environment, and T is less than or equal to T d When the air conditioner operates in a low-temperature environment, the flow rate of the refrigerant is low, and the time for the refrigerant to return to the compressor is prolonged. Therefore, the electronic valve needs to be opened to enable part of the refrigerant to directly circulate between the air pipe and the liquid pipe of the air conditioner through the electronic valve, the flowing path of the refrigerant is shortened, the return air pressure of the compressor is prevented from being rapidly reduced, and the stable operation of the compressor is ensured.
Note that the preset opening degree may be set in advance, for example, 75% opening degree is set as the preset opening degree.
It should be appreciated that if the electronic valve is fully opened, the air conditioner may be caused to not cool or heat at all, resulting in a poor user experience. Therefore, in this embodiment, the electronic valve is adjusted to 75% open.
Step S30: and after the interval of preset time, controlling the air conditioner to operate according to the air conditioner starting instruction.
It should be noted that the preset time may be preset. For example, 3min is set as the preset time.
It is understood that step S30 may specifically be: when the air conditioner starting instruction is an air conditioner heating starting mode instruction, controlling the air conditioner to start heating; and when the air conditioner starting instruction is an air conditioner starting refrigeration mode instruction, controlling the air conditioner to start refrigeration.
For ease of understanding, the description will be made with reference to fig. 5, but this scheme is not limited thereto. Fig. 5 is a schematic diagram of a refrigerant flow direction of the air conditioner in a heating mode, in which, when the air conditioner starts heating, the compressor 1 compresses discharged gaseous refrigerant, the refrigerant is diverted to the air-conditioning air pipe 4 by the four-way valve 2, one path of the refrigerant flows into the indoor unit 5, the other path of the refrigerant flows into the air-conditioning liquid pipe 6 through the electronic valve 8, the refrigerant entering the indoor unit 5 is directly subjected to heat dissipation and condensation in the evaporator 52, and then enters the air-conditioning liquid pipe 6 after being changed into high-pressure high-temperature liquid refrigerant, and then is throttled by the throttling part 9 to be changed into low-temperature low-pressure liquid refrigerant, and then enters the condenser 102 of the outdoor unit 10 for evaporation and heat exchange, and then returns to the compressor 1 through the four-way valve 2 to be compressed again and repeatedly circulated.
For ease of understanding, the description will be made with reference to fig. 6, but this solution is not limited thereto. Fig. 6 is a schematic diagram of a refrigerant flow direction of the air conditioner in a refrigeration mode, in which, when the air conditioner starts to refrigerate, a compressor 1 compresses a discharged refrigerant, the refrigerant passes through a four-way valve 2 to change a direction of an outdoor unit 10, enters a condenser 102 of the outdoor unit 10 to be cooled and condensed, then enters an air conditioner liquid pipe 6, and is throttled by a throttling component 9, after throttling, the refrigerant is divided into two paths, one path of the refrigerant flows into an indoor unit 5, the other path of the refrigerant flows into an air conditioner gas pipe 4 through an electronic valve 8, the refrigerant entering the indoor unit 5 directly performs evaporation heat exchange in an evaporator 52, enters the air conditioner gas pipe 4 after the heat exchange is completed, and then returns to the compressor 1 through the four-way valve 2 to be compressed again and repeatedly circulated.
This embodiment is through setting up the electronic valve between air conditioner trachea and air conditioner liquid pipe to when detecting air conditioner work in low temperature environment, open the electronic valve, so that the refrigerant directly circulates between air conditioner trachea and air conditioner liquid pipe, thereby shortened the flow distance of refrigerant, avoided the quick decline of return-air pressure of compressor, guaranteed compressor steady operation.
Referring to fig. 7, fig. 7 is a flowchart illustrating a second embodiment of the method for controlling an air conditioner according to the present invention, which is proposed based on the first embodiment shown in fig. 2.
In the second embodiment, after the step S30, the method includes:
step S40: and acquiring the running time of the air conditioner.
It should be noted that the operation time may be the total time for heating or cooling.
It should be understood that step S40 may specifically be: when the air conditioner starts to heat or cool, a timer is set to start timing, and the timing time of the timer is the total time of the air conditioner for heating or cooling.
Step S50: and adjusting the opening of the electronic valve according to the running time so as to improve the running effect of the air conditioner.
It can be understood that after the air conditioner is operated for a certain period of time in a heating or cooling mode, the refrigerant flows into the compressor, and the return pressure of the compressor tends to be stable. In this case, the opening degree of the electronic valve needs to be reduced to allow more refrigerant to flow into the indoor unit, thereby improving the heating or cooling effect.
It should be understood that step S50 may specifically be: and searching a target opening corresponding to the running time in a preset opening table, and adjusting the opening of the electronic valve to the target opening. The preset opening table includes a corresponding relationship between the operation time and the target opening, and the corresponding relationship between the operation time and the target opening may be preset.
In a specific implementation, for example, when the operation time of the air conditioner is 5min, the opening degree of the electronic valve can be adjusted to 50%; when the running time of the air conditioner is 12min, the opening of the electronic valve can be adjusted to 25%; the opening degree of the electronic valve may be adjusted to 0% when the operation time of the air conditioner is 21 min.
Further, in order to reduce the amount of calculation of the air conditioner control, the step S50 includes:
searching a time interval corresponding to the running time;
and determining a target opening according to the time interval, and adjusting the opening of the electronic valve to the target opening.
It can be understood that, since the target opening degree is determined by the time interval in the present embodiment, the target opening degree corresponding to the running time does not need to be queried one by one, and the calculation amount for determining the opening degree is reduced.
It should be noted that the time interval may be preset. For example, three time intervals of [5,12min), [12min, 21min), and [20min, + ∞) ] are set.
In a specific implementation, for example, when the operation time is within the [5,12min), the opening degree of the electronic valve can be adjusted to 50%; when the running time is in the interval of [12min, 21min), the opening degree of the electronic valve can be adjusted to 25 percent; the opening of the electronic valve can be adjusted to 0% when the operating time is within the interval [20min, + ∞).
Further, in order to close the electronic valve more accurately, after step S50, the method further includes:
acquiring the return air pressure of the compressor;
and when the return air pressure is equal to a preset pressure threshold value, controlling the electronic valve to be closed.
It should be noted that the preset pressure threshold may be preset.
It should be understood that in the present embodiment, whether to control the electronic valve to close is determined by the return air pressure of the compressor, thereby ensuring that the electronic valve is closed only when the return air pressure of the compressor is stable.
The second embodiment adjusts the opening of the electronic valve in real time through the running time of the air conditioner, so that the opening of the electronic valve can be reduced according to the actual running condition of the air conditioner, more refrigerants can flow into the indoor unit, and the heating or cooling effect is improved.
Referring to fig. 8, fig. 8 is a flowchart illustrating a third embodiment of the method for controlling an air conditioner according to the present invention, and the third embodiment of the method for controlling an air conditioner according to the present invention is proposed based on the first embodiment shown in fig. 2.
In the third embodiment, before the step S20, the method further includes:
step S110: and acquiring a height difference value between the indoor unit and the outdoor unit.
It should be noted that the height difference may be a difference between a height at which the indoor unit is located and a height at which the outdoor unit is located.
Step S120: and determining a preset opening according to the height difference.
It is understood that step S120 may specifically be: and searching a preset opening corresponding to the height difference value in a preset height table. The preset altimeter includes a corresponding relationship between the altitude difference and the preset opening, and the corresponding relationship between the altitude difference and the preset opening may be preset.
Further, considering that the outdoor ambient temperature also has an influence on the return air pressure of the compressor, the step S120 includes:
generating an opening correction value according to the outdoor environment temperature;
and determining a preset opening according to the opening correction value and the height difference value.
It should be understood that the opening correction value corresponding to the outdoor ambient temperature may be looked up in the preset temperature table. The preset temperature table comprises a corresponding relation between the outdoor environment temperature and the opening correction value, and the corresponding relation between the outdoor environment temperature and the opening correction value can be preset.
It is understood that the initial opening degree may be determined first according to the height difference value, and the initial opening degree may be added to the opening degree correction value to obtain the preset opening degree.
The third embodiment presets the aperture through the difference in height value to can make and predetermine the aperture and accord with the actual demand of air conditioner more, with the effect that improves the compressor protection.
Furthermore, an embodiment of the present invention further provides a storage medium, where an air conditioner control program is stored, and the air conditioner control program, when executed by a processor, implements the air conditioner control method as described above.
Further, referring to fig. 9, an embodiment of the present invention further provides an air conditioner control device, including:
in the present embodiment, for convenience of understanding, description is made with reference to fig. 3, but this scheme is not limited thereto. Fig. 3 is a schematic diagram of an air conditioner, in which the air conditioner is composed of a compressor 1, a four-way valve 2, a low-pressure stop valve 3, an air-conditioning air pipe 4, an indoor unit 5, an air-conditioning liquid pipe 6, a high-pressure stop valve 7, an electronic valve 8, a throttling component 9, an outdoor unit 10, an outdoor temperature sensor 11, and a pressure sensor 12. The indoor unit 5 includes an indoor fan 51 and an evaporator 52, and the outdoor unit 10 includes an outdoor fan 101 and a condenser 102.
And the temperature detection module 10 is used for detecting the outdoor environment temperature when receiving the air conditioner starting instruction.
It should be understood that the execution subject of the present embodiment is the air conditioner, wherein the air conditioner may be a long-piping air conditioner. The long tubing air conditioner may be one with long air conditioner liquid pipe and air conditioner air pipe.
For ease of understanding, the description will be made with reference to fig. 4, but this scheme is not limited thereto. Fig. 4 is a schematic view of an air conditioner with long pipes, in which since there is a height difference between an indoor unit 5 and an outdoor unit 10 of the air conditioner, it is necessary to provide a long air-conditioning liquid pipe 6 and an air-conditioning gas pipe 4 between the indoor unit 5 and the outdoor unit 10 to exchange refrigerant between the indoor unit 5 and the outdoor unit 10, and thus a path through which the refrigerant flows is long.
When the air conditioner works in a normal temperature or high temperature environment, the flow speed of the refrigerant is high, the passage is long, and the influence is not large. However, when the air conditioner operates in a low-temperature environment, the flow rate of the refrigerant is slow, which further increases the time for the refrigerant to return to the compressor, thereby causing the return air pressure of the compressor to be rapidly reduced, and affecting the normal operation of the compressor.
In fig. 4, the electronic valve 8 is additionally arranged between the air-conditioning air pipe 4 and the air-conditioning liquid pipe 6, and when the air-conditioning device is detected to work in a low-temperature environment, the electronic valve 8 is opened, so that the refrigerant directly circulates between the air-conditioning air pipe 4 and the air-conditioning liquid pipe 6, the flowing distance of the refrigerant is shortened, the return air pressure of the compressor is prevented from being reduced rapidly, and the stable operation of the compressor is ensured.
It should be noted that the air conditioner starting instruction may be sent by a user through a user control interface of the air conditioner, or may be sent by the user through an air conditioner control application program on a preset terminal device, which is not limited in this embodiment. The preset terminal device can establish communication connection with the air conditioner in advance.
The air conditioner starting instruction may be an air conditioner heating mode starting instruction or an air conditioner cooling mode starting instruction, which is not limited in this embodiment.
It should be noted that the outdoor ambient temperature may be detected by an outdoor temperature sensor, and the outdoor ambient temperature may be an ambient temperature of a position where the outdoor unit is located. In this and other embodiments, the outdoor ambient temperature is denoted by T.
It is understood that the outdoor temperature sensor may be pre-installed on the air conditioner, or may be pre-installed in the area where the air conditioner is located, which is not limited in this embodiment.
Further, when the air conditioner operates in a normal-temperature or high-temperature environment, the flow rate of the refrigerant is high, and the condition that the return air pressure of the compressor is rapidly reduced is not easy to occur. At this time, in order to ensure the cooling or heating effect of the air conditioner, the opening degree adjusting module 20 is configured to control the electronic valve to close when the outdoor environment temperature is greater than a preset temperature threshold.
It should be noted that the preset temperature threshold may be preset, for example, 2 ℃ is set asA temperature threshold is preset. In this and other embodiments, T d Representing a preset temperature threshold.
It should be understood that the preset temperature threshold is used to determine whether the air conditioner is operating in a low temperature environment, at T>T d When the air conditioner operates in a normal-temperature or high-temperature environment, the flow speed of the refrigerant is high, and the condition that the return air pressure of the compressor is not easy to decrease rapidly is explained. In this case, in order to ensure the cooling or heating effect of the air conditioner, the electronic valve needs to be closed so that all the refrigerant flows into the indoor unit, and sufficient heat exchange is performed on the indoor unit side.
It can be understood that after the electronic valve is closed for the preset time, whether the air conditioner starting instruction is an air conditioner heating starting mode instruction or an air conditioner cooling starting mode instruction can be judged. When the air conditioner starting instruction is an air conditioner heating starting mode instruction, controlling the air conditioner to start heating; and when the air conditioner starting instruction is an air conditioner refrigerating mode starting instruction, controlling the air conditioner to start refrigerating.
It should be noted that the preset time may be preset. For example, 3min is set as the preset time.
And the opening adjusting module 20 is configured to adjust the opening of the electronic valve to a preset opening when the outdoor environment temperature is less than or equal to a preset temperature threshold, so as to control the return air pressure of the compressor.
It can be understood that the preset temperature threshold is used for judging whether the air conditioner operates in a low-temperature environment, and T is less than or equal to T d When the air conditioner operates in a low-temperature environment, the flow rate of the refrigerant is low, and the time for the refrigerant to return to the compressor is prolonged. Therefore, the electronic valve needs to be opened so that part of the refrigerant directly circulates between the air pipe and the liquid pipe of the air conditioner through the electronic valve, the flowing path of the refrigerant is shortened, the return air pressure of the compressor is prevented from being rapidly reduced, and the stable operation of the compressor is ensured.
Note that the preset opening degree may be set in advance, for example, 75% opening degree is set as the preset opening degree.
It should be appreciated that if the electronic valve is fully opened, it may result in the air conditioner not cooling or heating at all, resulting in a poor user experience. Therefore, in this embodiment, the electronic valve is adjusted to 75% open.
And the operation control module 30 is used for controlling the air conditioner to operate according to the air conditioner starting instruction after a preset time interval.
It should be noted that the preset time may be preset. For example, 3min is set as the preset time.
It is understood that the operation control module 30 may be specifically configured to: when the air conditioner starting instruction is an air conditioner heating starting mode instruction, controlling the air conditioner to start heating; and when the air conditioner starting instruction is an air conditioner refrigerating mode starting instruction, controlling the air conditioner to start refrigerating.
For ease of understanding, the description will be made with reference to fig. 5, but this scheme is not limited thereto. Fig. 5 is a schematic diagram of a refrigerant flow direction of the air conditioner in a heating mode, in which, when the air conditioner starts heating, a compressor 1 compresses discharged gaseous refrigerant, the refrigerant is diverted to an air-conditioning air pipe 4 by a four-way valve 2, one path of the refrigerant flows into an indoor unit 5, the other path of the refrigerant flows into an air-conditioning liquid pipe 6 through an electronic valve 8, the refrigerant entering the indoor unit 5 is directly subjected to heat dissipation and condensation in an evaporator 52, is changed into high-pressure and high-temperature liquid refrigerant, then flows into the air-conditioning liquid pipe 6, is throttled by a throttling part 9 to be changed into low-temperature and low-pressure liquid refrigerant, then flows into a condenser 102 of an outdoor unit 10 to be subjected to evaporation and heat exchange, and then returns to the compressor 1 through the four-way valve 2 to be compressed again and repeatedly circulated.
For ease of understanding, the description will be made with reference to fig. 6, but this scheme is not limited thereto. Fig. 6 is a schematic diagram of a refrigerant flow direction of the air conditioner in a refrigeration mode, in which, when the air conditioner starts to refrigerate, a compressor 1 compresses a discharged refrigerant, the refrigerant passes through a four-way valve 2 to change a direction of an outdoor unit 10, enters a condenser 102 of the outdoor unit 10 to be cooled and condensed, then enters an air conditioner liquid pipe 6, and is throttled by a throttling component 9, after throttling, the refrigerant is divided into two paths, one path of the refrigerant flows into an indoor unit 5, the other path of the refrigerant flows into an air conditioner gas pipe 4 through an electronic valve 8, the refrigerant entering the indoor unit 5 directly performs evaporation heat exchange in an evaporator 52, enters the air conditioner gas pipe 4 after the heat exchange is completed, and then returns to the compressor 1 through the four-way valve 2 to be compressed again and repeatedly circulated.
This embodiment is through setting up the electronic valve between air conditioner trachea and air conditioner liquid pipe to when detecting air conditioner work in low temperature environment, open the electronic valve, so that the refrigerant directly circulates between air conditioner trachea and air conditioner liquid pipe, thereby shortened the flow distance of refrigerant, avoided the quick decline of return-air pressure of compressor, guaranteed compressor steady operation.
Other embodiments or specific implementation manners of the air conditioner control device according to the present invention may refer to the above method embodiments, and are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or system comprising the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order, but rather the words first, second, third, etc. are to be interpreted as names.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g., a Read Only Memory (ROM)/Random Access Memory (RAM), a magnetic disk, an optical disk), and includes several instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An air conditioner control method, characterized in that the air conditioner control method is applied to an air conditioner, and the air conditioner comprises: the air conditioner control method comprises a compressor, an indoor unit, an outdoor unit and an electronic valve, wherein the compressor is communicated with the indoor unit through an air conditioner air pipe, the indoor unit is communicated with the outdoor unit through an air conditioner liquid pipe, one end of the electronic valve is communicated with the air conditioner air pipe, the other end of the electronic valve is communicated with the air conditioner liquid pipe, and the air conditioner control method comprises the following steps:
detecting the outdoor environment temperature when receiving an air conditioner starting instruction;
when the outdoor environment temperature is less than or equal to a preset temperature threshold value, adjusting the opening of the electronic valve to a preset opening so as to control the return air pressure of the compressor; and
and after the interval of preset time, controlling the air conditioner to operate according to the air conditioner starting instruction.
2. The method as claimed in claim 1, further comprising, after the interval of the preset time and after controlling the operation of the air conditioner according to the air conditioner start command:
acquiring the running time of the air conditioner; and
and adjusting the opening of the electronic valve according to the running time so as to improve the running effect of the air conditioner.
3. The air conditioner control method as claimed in claim 2, wherein said adjusting the opening degree of said electronic valve according to said operation time comprises:
searching a time interval corresponding to the running time; and
and determining a target opening according to the time interval, and adjusting the opening of the electronic valve to the target opening.
4. The air conditioner control method as claimed in claim 2, further comprising, after said adjusting the opening degree of said electronic valve according to said operation time:
acquiring the return air pressure of the compressor; and
and when the return air pressure is equal to a preset pressure threshold value, controlling the electronic valve to be closed.
5. The air conditioner control method as claimed in any one of claims 1-4, wherein said adjusting the opening degree of the electronic valve to a preset opening degree before the opening degree of the electronic valve is adjusted to a preset opening degree when the outdoor ambient temperature is less than or equal to a preset temperature threshold value comprises:
acquiring a height difference value between the indoor unit and the outdoor unit; and
and determining a preset opening according to the height difference.
6. The air conditioner control method as claimed in claim 5, wherein said determining a preset opening degree according to the height difference value comprises:
generating an opening correction value according to the outdoor environment temperature; and
and determining a preset opening according to the opening correction value and the height difference value.
7. The air conditioner control method according to any one of claims 1-4, further comprising, after detecting an outdoor ambient temperature upon receiving an air conditioner start instruction:
and when the outdoor environment temperature is greater than a preset temperature threshold value, controlling the electronic valve to close.
8. An air conditioner, characterized in that the air conditioner comprises: the air conditioner comprises a compressor, an indoor unit, an outdoor unit and an electronic valve, wherein the compressor is communicated with the indoor unit through an air conditioner air pipe, the indoor unit is communicated with the outdoor unit through an air conditioner liquid pipe, one end of the electronic valve is communicated with the air conditioner air pipe, and the other end of the electronic valve is communicated with the air conditioner liquid pipe; the air conditioner further includes: a memory, a processor, and an air conditioner control program stored on the memory and executable on the processor, the air conditioner control program when executed by the processor implementing the air conditioner control method of any one of claims 1 to 7.
9. A storage medium having stored thereon an air conditioner control program which, when executed by a processor, implements the air conditioner control method according to any one of claims 1 to 7.
10. An air conditioner control device characterized by comprising:
the temperature detection module is used for detecting the outdoor environment temperature when receiving an air conditioner starting instruction;
the opening adjusting module is used for adjusting the opening of the electronic valve to a preset opening when the outdoor environment temperature is less than or equal to a preset temperature threshold value so as to increase the return air pressure of the compressor;
and the operation control module is used for controlling the operation of the air conditioner according to the air conditioner starting instruction after a preset time interval.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110883632.7A CN115701514A (en) | 2021-08-02 | 2021-08-02 | Air conditioner control method, air conditioner, storage medium and device |
| PCT/CN2022/082536 WO2023010860A1 (en) | 2021-08-02 | 2022-03-23 | Air conditioner control method, air conditioner, storage medium, and air conditioner control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110883632.7A CN115701514A (en) | 2021-08-02 | 2021-08-02 | Air conditioner control method, air conditioner, storage medium and device |
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| CN115701514A true CN115701514A (en) | 2023-02-10 |
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| CN202110883632.7A Pending CN115701514A (en) | 2021-08-02 | 2021-08-02 | Air conditioner control method, air conditioner, storage medium and device |
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| CN (1) | CN115701514A (en) |
| WO (1) | WO2023010860A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546752B (en) * | 2016-01-04 | 2018-12-07 | 广东美的暖通设备有限公司 | Air-conditioner control method and device |
| JP6697890B2 (en) * | 2016-02-08 | 2020-05-27 | 日立ジョンソンコントロールズ空調株式会社 | Unit mechanism for air conditioner and air conditioner including the same |
| CN108444058A (en) * | 2018-03-31 | 2018-08-24 | 青岛海尔空调器有限总公司 | The control method of air-conditioning under heating mode |
| CN110030676B (en) * | 2019-04-28 | 2021-01-26 | 广东美的暖通设备有限公司 | Air conditioner control method and device and computer readable storage medium |
| CN111141075B (en) * | 2020-01-06 | 2022-01-25 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device, air conditioner and storage medium |
| CN111486563B (en) * | 2020-04-29 | 2021-07-27 | 海信（山东）空调有限公司 | Control method and device of electronic expansion valve |
| CN111981648A (en) * | 2020-08-25 | 2020-11-24 | Tcl空调器(中山)有限公司 | Heating control method and device for air conditioner, air conditioner and readable storage medium |
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2021
- 2021-08-02 CN CN202110883632.7A patent/CN115701514A/en active Pending
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