CN110542234B - Air conditioner, operation control method and device thereof and computer readable storage medium - Google Patents

Air conditioner, operation control method and device thereof and computer readable storage medium Download PDF

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Publication number
CN110542234B
CN110542234B CN201910867130.8A CN201910867130A CN110542234B CN 110542234 B CN110542234 B CN 110542234B CN 201910867130 A CN201910867130 A CN 201910867130A CN 110542234 B CN110542234 B CN 110542234B
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CN
China
Prior art keywords
opening degree
preset
air conditioner
throttling device
operation control
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CN201910867130.8A
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Chinese (zh)
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CN110542234A (en
Inventor
徐振坤
朱兴丹
白崇俨
杜顺开
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Priority to CN201910867130.8A priority Critical patent/CN110542234B/en
Publication of CN110542234A publication Critical patent/CN110542234A/en
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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
    • F24F11/56—Remote control
    • F24F11/58—Remote control using Internet communication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention provides an air conditioner, an operation control method and device thereof and a computer readable storage medium, wherein the operation control method comprises the following steps: responding to a shutdown instruction, adjusting the opening degree of the throttling device to be zero flow opening degree or below the zero flow opening degree, and enabling the air conditioner to enter a standby state; if the starting instruction is not received and the working condition parameters of the air conditioner meet the preset conditions, the opening degree of the throttling device is adjusted to be the preset opening degree, wherein the preset opening degree is larger than the zero-flow opening degree. According to the operation control method provided by the invention, when a starting-up instruction is not received, namely the air conditioner is still in a standby state, if the working condition parameters of the air conditioner meet the preset conditions, the opening degree of the throttling device is adjusted to the preset opening degree larger than the zero-flow opening degree, so that the failure or the reduction of the precision of the throttling device caused by the fact that the throttling device is in a closed throttling state for a long time is avoided, the long-term standby of the air conditioner can be realized on the premise that the throttling device is not damaged, the structure of the air conditioner is not changed, and the use cost is low.

Description

Air conditioner, operation control method and device thereof and computer readable storage medium
Technical Field
The present invention relates to the field of refrigeration equipment, and more particularly, to an air conditioner, an operation control method and apparatus thereof, and a computer-readable storage medium.
Background
The air conditioner has the characteristic of intermittent use, the opening degree is fixed to the opening degree in shutdown or the standby opening degree with flow when standby is carried out between two times of use, and the compressor, the fan, the throttling device, the four-way valve and the like are powered off and do not work.
Because the electronic expansion valve is a high-precision machined part, the surface smoothness is high, the contact between the valve needle and the surface of the valve seat is metal rigid contact, the valve needle can deform after long-time occlusion, adhesion can be formed on the contact surface due to diffusion, the smoothness of the surface is easy to damage when the valve needle is separated, and the control precision of the electronic expansion valve is influenced. Because the randomness of the stop opening degree is very large, taking an electronic expansion valve capable of intercepting as an example, when the electronic expansion valve is stopped in a throttling state or needs to be in a throttling state for a long time, the risk of failure or reduced precision exists, and the use reliability and the control precision of the electronic expansion valve are influenced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
To this end, a first aspect of the present invention aims to provide an operation control method.
A second aspect of the present invention is directed to an operation control device.
A third aspect of the present invention is directed to an air conditioner.
A fourth aspect of the present invention is directed to a computer-readable storage medium.
In order to achieve the above object, an aspect of the present invention provides an operation control method, which is applied to an air conditioner, the air conditioner includes an indoor unit and an outdoor unit, a throttling device is disposed on a specified flow path communicating the indoor unit and the outdoor unit, and the operation control method includes: responding to a shutdown instruction, adjusting the opening degree of the throttling device to be zero flow opening degree or below the zero flow opening degree, and enabling the air conditioner to enter a standby state; if the starting instruction is not received, and the working condition parameters of the air conditioner meet the preset conditions, the opening degree of the throttling device is adjusted to be the preset opening degree, wherein the preset opening degree is larger than the zero-flow opening degree.
According to the operation control method provided by the technical scheme of the invention, when the starting-up instruction is not received, namely the air conditioner is still in the standby state, if the working condition parameters of the air conditioner meet the preset conditions, the opening degree of the throttling device is adjusted to the preset opening degree larger than the zero-flow opening degree, so that the failure or the reduction of the precision of the throttling device caused by the fact that the throttling device is in the closed throttling state for a long time is avoided, and the long-term standby of the air conditioner can be realized on the premise of not damaging the throttling device.
In addition, the operation control method provided by the above technical scheme of the present invention also has the following additional technical features:
in one embodiment, the operating condition parameters include time operating condition parameters and time operating condition parameters, if a start instruction is not received, and the operating condition parameters of the air conditioner satisfy a preset condition, the opening degree of the throttling device is adjusted to a preset opening degree, which specifically includes: if the starting instruction is not received, recording a first duration of the opening degree of the throttling device at or below a zero-flow opening degree; if the first duration is detected to be greater than or equal to a first duration threshold, judging whether the current time is within a preset time range; and if the current time is within a preset time range, determining that the working condition parameters of the air conditioner meet the preset conditions, and adjusting the opening of the throttling device to the preset opening.
When the first duration that the opening degree of the throttling device is at or below the zero-flow opening degree is larger than the first duration threshold, the duration that the throttling device is at or below the zero-flow opening degree is enough. At the moment, in order to prevent the throttle device from being adjusted to the preset opening degree to influence the indoor temperature, the current time is judged, and when the current time is within the preset time range, the opening degree of the throttle device is adjusted to the preset opening degree. Therefore, the problem of accuracy reduction of the throttling device caused by the fact that the throttling device is in the zero-flow opening degree or below the zero-flow opening degree for a long time can be avoided, and the problem that when the throttling device is adjusted to the preset opening degree, the flowing of the refrigerant affects the indoor temperature can also be avoided.
In one embodiment, the first time length threshold is greater than or equal to 24h, which can prevent the problem of accuracy reduction of the throttling device caused by the fact that the throttling device is in a throttling state (in a state of being at or below a zero flow opening degree) for a long time, and can also avoid the problem that the opening degree of the throttling device is too frequent caused by the fact that the first time length threshold is too small; when the refrigeration mode is shut down, the preset time range is 4: 00-8: 00, and when the heating mode is shut down, the preset time range is 12: 00-16: 00.
When the air conditioner is shut down in the cooling mode (operates in the cooling mode before the air conditioner is shut down), the outdoor temperature is lower and the difference value between the indoor temperature and the outdoor temperature is smaller at 4: 00-8: 00, and when the air conditioner is shut down in the heating mode (operates in the heating mode during the air conditioner is shut down), the outdoor temperature is higher and the difference value between the indoor temperature and the outdoor temperature is smaller at 12: 00-16: 00, so that the influence on the indoor temperature caused by the large-amount flowing of the refrigerant between the indoor heat exchanger and the outdoor heat exchanger due to the fact that the throttling device is at the preset opening degree can be avoided, the influence on the next starting effect caused by the fact that the refrigerant is migrated to an improper position in large amount can also be avoided.
In one embodiment, the operating condition parameters include a time operating condition parameter and a temperature operating condition parameter, if a start instruction is not received, and the operating condition parameters of the air conditioner satisfy a preset condition, the opening degree of the throttling device is adjusted to a preset opening degree, which specifically includes: if the starting instruction is not received, recording a first duration of the opening degree of the throttling device at or below a zero-flow opening degree; if the first duration is detected to be greater than or equal to a first duration threshold, judging whether the difference between one of the indoor coil temperature and the indoor environment temperature and one of the outdoor coil temperature and the outdoor environment temperature is greater than or equal to a preset difference threshold; and if the difference is larger than or equal to a preset difference threshold value, determining that the working condition parameters of the air conditioner meet the preset conditions, and adjusting the opening of the throttling device to the preset opening.
When the first duration that the opening degree of the throttling device is at or below the zero-flow opening degree is larger than the first duration threshold, the duration that the throttling device is at or below the zero-flow opening degree is enough. At this time, in order to prevent the throttling device from being adjusted to the preset opening degree to influence the indoor temperature, the difference value between one of the current indoor environment temperature and the indoor coil temperature and one of the outdoor environment temperature and the outdoor coil temperature is judged, and when the difference value between one of the indoor environment temperature and the indoor coil temperature and one of the outdoor environment temperature and the outdoor coil temperature is larger than or equal to the preset difference threshold value, the opening degree of the throttling device is adjusted to the preset opening degree. Like this, can avoid the problem that the throttling arrangement precision that the throttling arrangement is in zero flow aperture or leads to below the zero flow aperture for a long time reduces, can also avoid adjusting throttling arrangement to when predetermineeing the aperture, the flow of refrigerant influences indoor temperature, can also avoid in addition that the refrigerant migrates to improper position in a large number, influences the effect of starting next time.
In one embodiment, the first time length threshold is greater than or equal to 24h, which can prevent the problem of accuracy reduction of the throttling device caused by the fact that the throttling device is in a throttling state (in a state of being at or below a zero flow opening degree) for a long time, and can also avoid the problem that the opening degree of the throttling device is too frequent caused by the fact that the first time length threshold is too small; the preset difference threshold is greater than or equal to 0 ℃, and the phenomenon that the distribution of the refrigerant before starting is influenced by the fact that the refrigerant flows to the indoor heat exchanger or the outdoor heat exchanger when the preset difference threshold is less than 0 ℃ is avoided.
In one embodiment, if the start instruction is not received and the working condition parameters of the air conditioner satisfy the preset conditions, the method for adjusting the opening degree of the throttling device to the preset opening degree includes: recording a second duration of the opening of the throttling device in the preset opening; and if the second duration is detected to be greater than or equal to a second duration threshold, returning to the step of adjusting the opening degree of the throttling device to be at or below a zero flow opening degree, and enabling the air conditioner to enter a standby state.
When the second duration is greater than or equal to the second duration threshold, it is indicated that the duration of the throttle device at the preset opening degree is enough, and the opening degree of the throttle device is adjusted to be at or below the zero-flow opening degree in time, so that the phenomenon that the refrigerant flows between the indoor heat exchanger and the outdoor heat exchanger excessively due to the fact that the opening degree of the throttle device is at the preset opening degree for too long time when the air conditioner is in the standby state can be avoided, and the phenomenon that the refrigerant migrates to an inappropriate position in large quantity to influence the next starting effect can be avoided.
In one embodiment, the second duration threshold is greater than or equal to 1s, and the valve needle and the valve seat of the throttling device are ensured to be sufficiently separated, so that the reliability of the throttling device can be effectively improved by controlling the throttling device to be at the preset opening degree in the standby state.
In one embodiment, the preset opening is greater than or equal to 50 steps.
The preset opening is more than or equal to 50 steps, so that the valve needle and the valve seat are fully separated, and the adhesion between the valve needle and the valve seat is avoided.
An aspect of the second aspect of the present invention provides an operation control device, including: a memory and a processor; the memory for storing program code; the processor is configured to call the program code to execute the operation control method according to any one of the technical solutions of the first aspect.
A third aspect of the present invention provides an air conditioner, including: the operation control device according to the second aspect.
An aspect of a fourth aspect of the present invention provides a computer-readable storage medium on which an operation control program is stored, the operation control program, when executed by a processor, implementing the operation control method according to any one of the aspects of the first aspect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an air conditioner according to another embodiment of the present invention;
FIG. 3 is a flow chart illustrating an operation control method according to an embodiment of the present invention;
FIG. 4 is a flow chart illustrating an operation control method according to an embodiment of the present invention;
FIG. 5 is a flow chart illustrating an operation control method according to a first embodiment of the present invention;
FIG. 6 is a flow chart illustrating an operation control method according to an embodiment of the present invention;
FIG. 7 is a flowchart illustrating an operation control method according to a second embodiment of the present invention;
FIG. 8 is a flow chart illustrating an operation control method according to an embodiment of the present invention;
fig. 9 is a schematic block diagram of an operation control apparatus according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 9 is:
11 compressor, 111 exhaust port, 112 return port, 12 outdoor fan, 13 outdoor heat exchanger, 14 indoor fan, 15 indoor heat exchanger, 16 auxiliary heater, 17 four-way valve, 18 throttling device, 200 running control device, 206 processor and 204 memory.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
An operation control method, an air conditioner, an operation control device, and a computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 9.
As shown in fig. 1 and 2, the air conditioner includes a compressor 11, a reversing assembly, an outdoor heat exchanger 13, an outdoor fan 12, an indoor heat exchanger 15, and an indoor fan 14. Wherein, the compressor 11 has a discharge port 111 and a return port 112; the reversing component can be a four-way valve 17, the four-way valve 17 has a first port to a fourth port, one of the first port and the third port is communicated with the second port, the other of the first port and the third port is communicated with the fourth port, the first port is connected with an exhaust port 111, and the third port is connected with a return air port 112; the second port is connected with the first end of the indoor heat exchanger 15, and the fourth port is connected with the first end of the outdoor heat exchanger 13; the throttling device 18 is connected in series between the second end of the indoor heat exchanger 15 and the second end of the outdoor heat exchanger 13.
Further, the air conditioner further includes an auxiliary heater 16, and the auxiliary heater 16 is a component used for directly heating the circulating air and increasing the air supply temperature in the air conditioner indoor unit.
The throttling device 18 may be a capillary tube, a throttle valve, a self-holding throttle valve, a thermostatic expansion valve, an electronic expansion valve, or other throttling components, and further, the throttling device 18 is a stop throttling device 18 with a stop function. The operation control method, the operation control device, the air conditioner and the computer readable storage medium in the present application will be described below by taking the throttle device 18 as an electronic expansion valve as an example, and the flow rate of the electronic expansion valve can be continuously adjusted within a certain range by controlling the size of the opening degree of the electronic expansion valve, but it should be noted that the throttle device 18 in the present application is not limited to the electronic expansion valve, and may be, for example, a capillary tube, a throttle valve, a self-holding throttle valve, a thermostatic expansion valve, and the like.
The electronic expansion valve is a high-precision machined part, the surface smoothness is high, the valve needle and the valve seat surface are in metal rigid contact, deformation can be generated due to long-time occlusion, adhesion can be formed on the contact surface due to the diffusion effect, the smoothness of the surface is easy to damage when the valve needle is separated, and the control precision of the electronic expansion valve is influenced. The air conditioner has the characteristic of intermittent use, the randomness of the stop opening degree is very large, the electronic expansion valve is not regulated after the stop, and for the electronic expansion valve capable of intercepting, the risk of failure or reduced precision exists when the air conditioner is stopped in a throttling state or needs to be in a long-term standby state in an intercepting state.
The air conditioner further includes a controller electrically connected to the throttle device 18 to control the opening degree of the throttle device 18.
To this end, as shown in fig. 3, an operation control method according to some embodiments of the present invention is applied to an air conditioner, and the operation control method includes:
step S302, responding to a shutdown instruction, adjusting the opening degree of the throttling device 18 to be zero flow opening degree or below the zero flow opening degree, and enabling the air conditioner to enter a standby state;
if the start-up instruction is not received and the working condition parameters of the air conditioner meet the preset conditions, step S304 is executed to adjust the opening degree of the throttling device 18 to a preset opening degree, wherein the preset opening degree is greater than the zero-flow opening degree.
As shown in fig. 4, in one specific implementation, the operation control method includes:
step S402, responding to a shutdown instruction, adjusting the opening degree of the throttling device 18 to be zero flow opening degree or below the zero flow opening degree, and enabling the air conditioner to enter a standby state;
step S404, judging whether a starting-up instruction is received;
if the power-on instruction is received, executing step S406, and entering power-on operation according to the setting;
if the starting-up instruction is judged not to be received, executing:
step S408, detecting working condition parameters of the air conditioner;
step S410, judging whether the working condition parameters meet preset conditions or not;
if the working condition parameter is judged to meet the preset condition, executing step S412, and adjusting the opening degree of the throttling device 18 to a preset opening degree, wherein the preset opening degree is greater than the zero-flow opening degree;
and if the working condition parameters are judged not to meet the preset conditions, returning to the step S408.
The operation control method provided by the above embodiment of the present invention detects the working condition parameters of the air conditioner when the start-up command is not received, i.e. the air conditioner is still in the standby state, and judges whether the working condition parameters satisfy the preset conditions, if the working condition parameters of the air conditioner satisfy the preset conditions, the opening degree of the throttling device 18 is adjusted to a preset opening degree larger than the zero flow opening degree, the valve needle and the valve seat of the electronic expansion valve are separated, the deformation caused by long-term occlusion of the valve needle and the valve seat is prevented, the adhesion of the valve needle and the valve seat caused by long-term rigid contact of the valve needle and the valve seat is avoided, thereby preventing the risk of failure or accuracy reduction caused by the electronic expansion valve being at or below the zero-flow opening degree for a long time, the air conditioner can be in standby for a long time on the premise of not damaging the throttling device 18, the structure of the air conditioner is not changed, and the use cost is low.
The shutdown instruction can be from an air conditioner remote controller, an APP, a remote centralized control and the like, namely, a user sends the shutdown instruction to the air conditioner through the remote controller, the APP, the remote centralized control and the like. The air conditioner can also automatically shut down in an automatic control mode according to the change of the indoor or outdoor temperature to generate a shutdown instruction, for example, when the indoor ambient temperature is lower than the preset temperature in the refrigeration mode, the air conditioner automatically shuts down, for example, when the indoor ambient temperature is detected to be lower than the preset temperature, the shutdown instruction is generated.
The starting instruction can be from an air conditioner remote controller, an APP, a remote centralized control and the like, namely, a user sends the starting instruction to the air conditioner through the remote controller, the APP, the remote centralized control and the like. The air conditioner can also be automatically controlled to automatically start according to the change of the indoor or outdoor temperature to generate a starting instruction, for example, when the indoor environment temperature is higher than the preset temperature in the refrigeration mode, the air conditioner automatically starts, for example, when the indoor environment temperature is higher than the preset temperature, the starting instruction is generated.
The first embodiment is as follows:
as shown in fig. 5, an operation control method includes:
step S502, responding to a shutdown instruction, adjusting the opening degree of the throttling device 18 to be zero flow opening degree or below the zero flow opening degree, and controlling the air conditioner to enter a standby state;
if the starting instruction is not received and the working condition parameters of the air conditioner meet the preset conditions, the opening degree of the throttling device 18 is adjusted to be the preset opening degree, wherein the preset opening degree is larger than the zero-flow opening degree.
Further, the operating condition parameters include time operating condition parameters and moment operating condition parameters, and if the start instruction is not received, and the operating condition parameters of the air conditioner meet the preset conditions, the opening degree of the throttling device 18 is adjusted to the preset opening degree, which specifically includes:
step S504, judge whether receive the starting up order;
if the starting instruction is not received, executing step S506, recording a first duration when the opening degree of the throttling device 18 is at or below the zero-flow opening degree, and acquiring a current time; if the start-up command is received, executing step S508 to control the air conditioner to start up;
step S510, determining whether the first duration is greater than or equal to a first duration threshold;
if the first duration is greater than or equal to the first duration threshold, executing step S512, and determining whether the current time is within a preset time range; if the first duration is smaller than the first duration threshold, returning to step S506;
if the current time is within the preset time range, executing step S514, determining that the working condition parameters of the air conditioner meet preset conditions, and adjusting the opening of the throttling device 18 to a preset opening;
if the current time is not within the preset time range, the process returns to step S506.
It should be noted that the current time of acquisition may be in step S506, or may be performed between steps S510 and S512.
The air conditioner may include a time counter or timer that records a first duration of time that the opening of the throttling device 18 is at or below the zero flow opening in step S506. The air conditioner may further include a clock module, such as a clock acquirer, for acquiring the current time through the clock module, or acquiring the current time through a network. Further, the current time refers to the current, local time.
When the first duration of the opening of the throttling device 18 at or below the zero-flow opening is greater than the first duration threshold, it indicates that the duration of the throttling device 18 at or below the zero-flow opening is long enough, and the valve needle and the valve seat are at risk of deformation and adhesion. At this time, in order to prevent the throttle device 18 from being adjusted to the preset opening degree to influence the indoor temperature, the current time needs to be judged, and when the current time is within the preset time range, the opening degree of the throttle device 18 is adjusted to the preset opening degree. Thus, it is possible to avoid the problem of a decrease in the accuracy of the expansion device 18 due to the expansion device 18 being at or below the zero-flow opening for a long period of time, and it is also possible to avoid the influence of the refrigerant flow on the indoor temperature when the expansion device 18 is adjusted to the preset opening.
Further, the first duration threshold is greater than or equal to 24h, so that the situation that the valve needle and the valve seat of the throttling device 18 are not deformed and adhered when the first duration threshold is too small is avoided, the throttling device 18 is controlled to be adjusted to the preset opening, and the situation that the opening of the throttling device 18 is too frequent due to the fact that the first duration threshold is too small is avoided.
Further, the first duration threshold ranges from 240h to 720 h.
Furthermore, when the refrigeration mode is shut down, the preset time range is 4: 00-8: 00.
When the air conditioner is shut down in the cooling mode (the air conditioner runs in the cooling mode before the air conditioner is shut down), the outdoor temperature is low at 4: 00-8: 00, the difference value between the indoor temperature and the outdoor temperature is small, and when the opening degree of the throttling device 18 is adjusted to the preset opening degree, the phenomenon that a large amount of refrigerant flows between the indoor heat exchanger 15 and the outdoor heat exchanger 13 through the throttling device 18 to influence the indoor temperature or the cooling speed of the next starting is avoided, and the comfort of a user in using the air conditioner is reduced. Optionally, the preset time is in the range of 5:30-6: 30.
When the heating mode is shut down, the preset time range is 12: 00-16: 00.
When the air conditioner is shut down in the heating mode (the air conditioner runs in the heating mode when the air conditioner is shut down), the outdoor temperature is high at 12: 00-16: 00, the difference value between the indoor temperature and the outdoor temperature is small, and when the opening degree of the throttling device 18 is adjusted to the preset opening degree, the phenomenon that a large amount of refrigerant flows between the indoor heat exchanger 15 and the outdoor heat exchanger 13 through the throttling device 18 to influence the indoor temperature and the heating speed of the next starting is avoided, and the comfort of a user in using the air conditioner is reduced. Optionally, the preset time range is 13: 30-14: 30.
further, after step S514, the operation control method further includes:
step S516, recording a second duration of the opening degree of the throttling device 18 at the preset opening degree, for example, the second duration may be recorded by a time counter or a timer;
step S518, determining whether the second duration is greater than or equal to a second duration threshold;
if the second duration is greater than or equal to the second duration threshold, returning to step S502;
if the second duration is less than the second duration threshold, the process returns to step S516.
When the second duration is greater than or equal to the second duration threshold, it indicates that the duration of the throttle device 18 at the preset opening degree is sufficient, and the valve needle and the valve seat of the electronic expansion valve are sufficiently separated, so that the problems of deformation and failure caused by long-term rigid contact between the valve needle and the valve seat are effectively avoided. When the second duration is greater than or equal to the second duration threshold, the opening degree of the throttling device 18 is adjusted to be the zero-flow opening degree or below the zero-flow opening degree in time, so that the throttling device 18 is in a throttling state again, and the phenomenon that the refrigerant flowing quantity between the indoor heat exchanger 15 and the outdoor heat exchanger 13 is too large due to the fact that the opening degree of the throttling device 18 is in the preset opening degree for too long time is avoided.
Further, the second time threshold is greater than or equal to 1s, and the valve needle and the valve seat of the throttling device 18 are ensured to be fully separated, so that the standby state is used for controlling the throttling device 18 to be at the preset opening degree, the reliability of the throttling device 18 can be effectively improved, the phenomenon that the valve needle and the valve seat are not fully separated due to the fact that the second time threshold is too small is avoided, and the adhesion and deformation of the valve needle and the valve seat can not be effectively relieved. Further, the second duration threshold is in the range of 1s-5 s.
Further, the preset opening is larger than or equal to 50 steps, and the risk that the valve needle and the valve seat are adhered due to insufficient separation of the valve needle and the valve seat due to the fact that the preset opening is too small is avoided. Optionally, the preset opening degree ranges from 100 steps to 200 steps.
As shown in FIG. 6, in one particular embodiment, the operation control method includes steps S602-S618.
Example two:
as shown in fig. 7, an operation control method includes:
step S702, responding to a shutdown instruction, adjusting the opening degree of the throttling device 18 to be zero flow opening degree or below the zero flow opening degree, and controlling the air conditioner to enter a standby state;
if the starting instruction is not received and the working condition parameters of the air conditioner meet the preset conditions, the opening degree of the throttling device 18 is adjusted to be the preset opening degree, wherein the preset opening degree is larger than the zero-flow opening degree.
Further, the operating condition parameters include time operating condition parameters and temperature operating condition parameters, and if the start-up instruction is not received, and the operating condition parameters of the air conditioner satisfy the preset conditions, the opening degree of the throttling device 18 is adjusted to the preset opening degree, and the method specifically includes the steps of:
step S704, judging whether a starting-up instruction is received;
step S706, if a power-on command is not received, recording a first duration when the opening of the throttling device 18 is at or below a zero-flow opening, detecting one of an indoor coil temperature and an indoor environment temperature, and detecting one of an outdoor coil temperature and an outdoor environment temperature, wherein the indoor environment temperature can be understood as an indoor room temperature, and generally is a temperature collected by an indoor unit return air inlet, a temperature sensor for collecting the indoor environment temperature can be arranged at a remote controller or other positions of a room, the indoor coil temperature is a temperature collected by an indoor unit heat exchanger and can be a temperature of a coil from an indoor unit heat exchanger refrigerant inlet to an indoor unit heat exchanger outlet, the temperature sensor for collecting the indoor coil temperature can be arranged on a coil from the indoor unit heat exchanger refrigerant inlet to the indoor unit heat exchanger refrigerant outlet, the outdoor coil temperature is a temperature collected by an outdoor unit heat exchanger and can be a temperature of a coil from, the temperature sensor for acquiring the temperature of the outdoor coil pipe can be positioned on the coil pipe from the refrigerant inlet to the refrigerant outlet of the heat exchanger of the outdoor unit, and the outdoor environment temperature can be the acquired temperature of the return air inlet of the outdoor unit; if the start-up command is received, step S708 is executed to control the air conditioner to start up;
step S710, judging whether the first duration is greater than or equal to a first duration threshold;
if the first duration is greater than or equal to the first duration threshold, executing step S712, and determining whether the difference between the indoor ambient temperature and the outdoor coil temperature is greater than or equal to a preset difference threshold; if the first duration is smaller than the first duration threshold, returning to the step S706;
if the difference is greater than or equal to the preset difference threshold, executing step S714, determining that the working condition parameter of the air conditioner meets the preset condition, and adjusting the opening degree of the throttling device 18 to the preset opening degree;
if the difference is smaller than the preset difference threshold, the process returns to step S706.
It should be noted that the current time of acquisition may be in step S706, or may be performed between steps S710 and S712.
The air conditioner may include a time counter or timer that records a first duration that the opening of the restriction device 18 is at or below the zero flow opening in step S706. The air conditioner may also include sensors, such as temperature sensors, by which the indoor ambient temperature and the outdoor coil temperature are collected.
When the first duration of the opening of the throttling device 18 at or below the zero-flow opening is greater than the first duration threshold, it indicates that the duration of the throttling device 18 at or below the zero-flow opening is long enough, and the valve needle and the valve seat are at risk of deformation and adhesion. At this time, in order to prevent the throttle device 18 from being adjusted to the preset opening degree to affect the indoor temperature and the cooling and heating speed of the next start, it is necessary to determine a difference between one of the current indoor ambient temperature and the indoor coil temperature and one of the outdoor ambient temperature and the outdoor coil temperature, in other words, detect the indoor ambient temperature or the indoor coil temperature and mark the temperature value as a, detect the outdoor ambient temperature or the outdoor coil temperature and mark the temperature value as B, and the difference between one of the indoor ambient temperature and the indoor coil temperature and one of the outdoor ambient temperature and the outdoor coil temperature is (a-B).
When the difference between one of the indoor ambient temperature and the indoor coil temperature and one of the outdoor ambient temperature and the outdoor coil temperature is greater than or equal to a preset difference threshold value, the opening degree of the throttling device 18 is adjusted to a preset opening degree. Thus, the problem of accuracy reduction of the throttling device 18 due to the fact that the throttling device 18 is at or below the zero-flow opening degree for a long time can be avoided, and the problem that when the throttling device 18 is adjusted to the preset opening degree, the flowing of the refrigerant affects the indoor temperature and the cooling and heating speed of the next start can be avoided.
Further, the first duration threshold is greater than or equal to 24h, so that the situation that the valve needle and the valve seat of the throttling device 18 are not deformed and adhered when the first duration threshold is too small is avoided, the throttling device 18 is controlled to be adjusted to the preset opening, and the situation that the opening of the throttling device 18 is too frequent due to the fact that the first duration threshold is too small is avoided.
Further, the first duration threshold ranges from 240h to 720 h.
Further, the preset difference threshold is greater than or equal to 0 ℃, that is, the indoor environment temperature is not lower than the outdoor coil temperature, so that the situation that the indoor temperature and the refrigerating speed of the next start are influenced by the refrigerant flowing to the indoor heat exchanger 15 when the preset difference threshold is less than 0 ℃ and the throttling device 18 is in the preset opening degree is avoided.
Further, the difference between the indoor ambient temperature and the outdoor coil temperature is greater than 5 ℃.
Further, after step S714, the operation control method further includes:
step S716, recording a second duration of the opening degree of the throttling device 18 at the preset opening degree, for example, the second duration may be recorded by a time counter or a timer;
step S718, determining whether the second duration is greater than or equal to a second duration threshold;
if the second duration is greater than or equal to the second duration threshold, returning to step S702;
if the second duration is smaller than the second duration threshold, the process returns to step S716.
When the second duration is greater than or equal to the second duration threshold, it indicates that the duration of the throttle device 18 at the preset opening degree is sufficient, and the valve needle and the valve seat of the electronic expansion valve are sufficiently separated, so that the problems of deformation and failure caused by long-term rigid contact between the valve needle and the valve seat are effectively avoided. When the second duration is greater than or equal to the second duration threshold, the opening degree of the throttling device 18 is adjusted to be the zero-flow opening degree or below the zero-flow opening degree in time, so that the throttling device 18 is in a throttling state again, and the phenomenon that the refrigerant flowing quantity between the indoor heat exchanger 15 and the outdoor heat exchanger 13 is too large due to the fact that the opening degree of the throttling device 18 is in the preset opening degree for too long time is avoided.
Further, the second time threshold is greater than or equal to 1s, and the valve needle and the valve seat of the throttling device 18 are ensured to be fully separated, so that the standby state is used for controlling the throttling device 18 to be at the preset opening degree, the reliability of the throttling device 18 can be effectively improved, the phenomenon that the valve needle and the valve seat are not fully separated due to the fact that the second time threshold is too small is avoided, and the adhesion and deformation of the valve needle and the valve seat can not be effectively relieved. Further, the second duration threshold is in the range of 1s-5 s.
Further, the preset opening is larger than or equal to 50 steps, and the risk that the valve needle and the valve seat are adhered due to insufficient separation of the valve needle and the valve seat due to the fact that the preset opening is too small is avoided. Optionally, the preset opening degree ranges from 100 steps to 200 steps.
As shown in FIG. 8, in one particular embodiment, the operation control method includes steps S802-S818.
In summary, the operation control method provided in the embodiments of the present invention, aiming at the characteristic that the air conditioner has intermittent use, by controlling the opening of the throttling device 18 during standby after shutdown and before startup, solves the problems of accuracy and reliability of use when the opening of the throttling device 18 is zero (cut-off state) in standby and the electronic expansion valve is shut down for a long time.
For example, the adopted technical scheme is as follows:
a flow adjustable throttling device 18, such as an electronic expansion valve, is disposed between the indoor heat exchanger 15 and the outdoor heat exchanger 13, and the electronic expansion valve can shut off (flow is zero), and the electronic expansion valve is electrically connected to the controller.
The air conditioner comprises a basic sensor for acquiring the following parameters, namely indoor room temperature (indoor environment temperature), indoor coil temperature, outdoor coil temperature and outdoor coil temperature, and further comprises a time counter and a clock acquirer.
The standby phase after the last power-off and before the next power-on is needed again, and can be remote control or automatic control, such as remote control power-on or automatic power-on.
By judging the current state of the air conditioner to be standby and combining the standby time (first duration), the current time or the indoor environment temperature T1 and the outdoor coil temperature T4 is judged, and the opening degree is adjusted between the cut-off opening degree (zero flow opening degree or below zero flow opening degree) and the preset opening degree in a short time at a proper time, the problem that the valve needle and the valve seat are contacted and adhered to fail for a long time in the standby state of cut-off is solved.
As shown in fig. 9, a third aspect of the present invention provides an operation control device 200, which includes a processor 206 and a memory 204, wherein the processor 206 is configured to implement the steps of the operation control method according to any one of the first aspect of the present invention when executing a computer program stored in the memory 204.
An aspect of the fourth aspect of the present invention provides an air conditioner including the operation control device 200 according to the second aspect.
An embodiment of a fifth aspect of the present invention provides a computer-readable storage medium having a computer program (instructions) stored thereon, characterized in that: the computer program (instructions), when executed by the processor 206, implement the steps of the operation control method as in any one of the embodiments of the first aspect.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage mediums comprising computer-usable program code(s) (including, but not limited to, disk storage 204, CD-ROM, optical storage 204, etc.).
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor 206 of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor 206 of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory 204 that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory 204 produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
In the description of the present invention, the term "plurality" means two or more unless explicitly specified or limited otherwise; the terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, or an electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the scope of the invention as defined in the appended claims and their equivalents, and it is intended that the invention encompass such changes and modifications as well.

Claims (9)

1. An operation control method is applied to an air conditioner, the air conditioner comprises an indoor unit and an outdoor unit, a throttling device is arranged on a specified flow path communicated between the indoor unit and the outdoor unit, and the operation control method comprises the following steps:
responding to a shutdown instruction, adjusting the opening degree of the throttling device to be zero flow opening degree or below the zero flow opening degree, and enabling the air conditioner to enter a standby state;
if a starting instruction is not received and the working condition parameters of the air conditioner meet preset conditions, adjusting the opening degree of the throttling device to a preset opening degree, wherein the preset opening degree is larger than a zero-flow opening degree;
the operating mode parameter includes time operating mode parameter and operating mode parameter constantly, if not receiving the start instruction, just the operating mode parameter of air conditioner satisfies the preset condition, will throttling arrangement's aperture is adjusted to preset aperture, specifically includes:
if the starting instruction is not received, recording a first duration of the opening degree of the throttling device at or below a zero-flow opening degree;
if the first duration is detected to be greater than or equal to a first duration threshold, judging whether the current time is within a preset time range;
if the current time is within a preset time range, determining that the working condition parameters of the air conditioner meet the preset conditions, and adjusting the opening of the throttling device to the preset opening; or
The operating mode parameter includes time operating mode parameter and temperature operating mode parameter, if not receiving the start instruction, just the operating mode parameter of air conditioner satisfies the preset condition, will throttling arrangement's aperture is adjusted to preset aperture, specifically includes:
if the starting instruction is not received, recording a first duration of the opening degree of the throttling device at or below a zero-flow opening degree;
if the first duration is detected to be greater than or equal to a first duration threshold, judging whether the difference between one of the indoor coil temperature and the indoor environment temperature and one of the outdoor coil temperature and the outdoor environment temperature is greater than or equal to a preset difference threshold;
and if the difference is larger than or equal to a preset difference threshold value, determining that the working condition parameters of the air conditioner meet the preset conditions, and adjusting the opening of the throttling device to the preset opening.
2. The operation control method according to claim 1,
the first time length threshold is greater than or equal to 24 h; when the refrigeration mode is shut down, the preset time range is 4: 00-8: 00, and when the heating mode is shut down, the preset time range is 12: 00-16: 00.
3. The operation control method according to claim 1,
the first time length threshold is greater than or equal to 24 h; the preset difference threshold is greater than or equal to 0 ℃.
4. The operation control method according to any one of claims 1 to 3, wherein if a start-up instruction is not received and the operating condition parameter of the air conditioner satisfies a preset condition, adjusting the opening degree of the throttle device to a preset opening degree comprises:
recording a second duration of the opening of the throttling device in the preset opening;
and if the second duration is detected to be greater than or equal to a second duration threshold, returning to the step of adjusting the opening degree of the throttling device to be at or below a zero flow opening degree, and enabling the air conditioner to enter a standby state.
5. The operation control method according to claim 4,
the second duration threshold is greater than or equal to 1 s.
6. The operation control method according to any one of claims 1 to 3,
the preset opening degree is greater than or equal to 50 steps.
7. An operation control device characterized by comprising: a memory and a processor;
the memory for storing program code;
the processor is used for calling the program codes to execute the operation control method according to any one of claims 1 to 6.
8. An air conditioner, comprising: the operation control device according to claim 7.
9. A computer-readable storage medium, having stored thereon an operation control program which, when executed by a processor, implements an operation control method according to any one of claims 1 to 6.
CN201910867130.8A 2019-09-12 2019-09-12 Air conditioner, operation control method and device thereof and computer readable storage medium Active CN110542234B (en)

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CN113959079B (en) * 2021-09-30 2022-12-09 珠海格力电器股份有限公司 Control method of air conditioner and air conditioner
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0611208A (en) * 1992-06-30 1994-01-21 Daikin Ind Ltd Air conditioning apparatus
CN101205976A (en) * 2007-12-20 2008-06-25 四川航空液压机械厂 Fire valve
WO2009151087A1 (en) * 2008-06-13 2009-12-17 三菱重工業株式会社 Refrigeration device
CN203614858U (en) * 2013-12-21 2014-05-28 宁波市精诚仪表有限公司 Prepaid temperature control valve
CN104234991A (en) * 2013-06-07 2014-12-24 车京殷 Trial protection device for preventing failure of market fire water pump
CN107576030A (en) * 2017-09-29 2018-01-12 广东美的制冷设备有限公司 The control method and air conditioner of air conditioner
CN109140686A (en) * 2018-08-22 2019-01-04 奥克斯空调股份有限公司 A kind of air-conditioning automated cleaning control method and air conditioner
CN109405177A (en) * 2018-11-06 2019-03-01 广东美的暖通设备有限公司 Control method, air-conditioning system and the readable storage medium storing program for executing of air-conditioning system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0611208A (en) * 1992-06-30 1994-01-21 Daikin Ind Ltd Air conditioning apparatus
CN101205976A (en) * 2007-12-20 2008-06-25 四川航空液压机械厂 Fire valve
WO2009151087A1 (en) * 2008-06-13 2009-12-17 三菱重工業株式会社 Refrigeration device
CN104234991A (en) * 2013-06-07 2014-12-24 车京殷 Trial protection device for preventing failure of market fire water pump
CN203614858U (en) * 2013-12-21 2014-05-28 宁波市精诚仪表有限公司 Prepaid temperature control valve
CN107576030A (en) * 2017-09-29 2018-01-12 广东美的制冷设备有限公司 The control method and air conditioner of air conditioner
CN109140686A (en) * 2018-08-22 2019-01-04 奥克斯空调股份有限公司 A kind of air-conditioning automated cleaning control method and air conditioner
CN109405177A (en) * 2018-11-06 2019-03-01 广东美的暖通设备有限公司 Control method, air-conditioning system and the readable storage medium storing program for executing of air-conditioning system

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