CN115682330A - Air conditioner control method and device, storage medium and air conditioner - Google Patents
Air conditioner control method and device, storage medium and air conditioner Download PDFInfo
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- CN115682330A CN115682330A CN202110879253.0A CN202110879253A CN115682330A CN 115682330 A CN115682330 A CN 115682330A CN 202110879253 A CN202110879253 A CN 202110879253A CN 115682330 A CN115682330 A CN 115682330A
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- air conditioner
- exhaust temperature
- opening degree
- expansion valve
- electronic expansion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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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
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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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- 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 discloses an air conditioner control method and device, a storage medium and an air conditioner, and belongs to the technical field of air conditioner control. According to the invention, when the air conditioner operates in a refrigerating mode, the first exhaust temperature collected by the exhaust temperature sensor and the protection signal sent by the compressor protector are obtained; the opening degree of the electronic expansion valve is adjusted according to the first exhaust temperature and the protection signal, and the self-adaptive adjustment of the opening degree of the electronic expansion valve is achieved through the exhaust temperature acquired by the exhaust temperature sensor and the protection signal of the compressor protector, so that the opening degree of the electronic expansion valve is more reasonable, the exhaust temperature of the air conditioner is prevented from being too high, and the safe and stable operation of the compressor is guaranteed.
Description
Technical Field
The invention relates to the technical field of air conditioner control, in particular to an air conditioner control method, an air conditioner control device, a storage medium and an air conditioner.
Background
In the production process, a temperature sensor for tightening the exhaust pipe is not arranged, so that the exhaust detection is low, the electronic expansion valve is continuously closed, the exhaust temperature of the system is abnormally high, the refrigeration effect is poor, and the machine is frequently protected and stopped. The exhaust is not tightened or wrapped with heat insulation cotton, so that the actual exhaust is high, slow frequency rise or exhaust frequency limitation cannot be realized, and the compressor is demagnetized at high temperature or burnt down after long-term operation. And part of unreasonable designs also cause the exhaust of actual design to be higher, the actual exhaust is higher than the TP exhaust frequency limit of actual system design, which causes the frequency limit of the machine to and fro, affects large room temperature fluctuation, poor refrigeration effect and comfort, and the electronic expansion valve cannot adaptively adjust target exhaust according to the system.
The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.
Disclosure of Invention
The invention mainly aims to provide an air conditioner control method, an air conditioner control device, a storage medium and an air conditioner, and aims to solve the technical problems that in the prior art, the opening degree of an electronic expansion valve is unreasonable and cannot be automatically adjusted, so that the exhaust temperature of an air conditioner system is high, and the compressor is stopped.
In order to achieve the above object, the present invention provides an air conditioner control method applied to an air conditioner including: the system comprises a compressor protector, an exhaust temperature sensor and an electronic expansion valve;
the air conditioner control method includes the steps of:
when the air conditioner operates in a refrigerating mode, acquiring a first exhaust temperature acquired by the exhaust temperature sensor and a protection signal sent by the compressor protector; and
and adjusting the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal.
Optionally, before adjusting the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal, the method further includes:
detecting whether the protection signal is a disconnection signal; and
and when the protection signal is an off signal, executing the step of adjusting the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal.
Optionally, after detecting whether the protection signal is a disconnection signal, the method further includes:
and when the protection signal is not a disconnection signal, adjusting the opening degree of the electronic expansion valve to a preset opening degree.
Optionally, the adjusting the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal includes:
when the protection signal is a disconnection signal, acquiring a temperature protection threshold value of the compressor protector; determining a target opening according to the first exhaust temperature and the temperature protection threshold value; and
and adjusting the opening degree of the electronic expansion valve according to the target opening degree.
Optionally, the determining a target opening degree according to the first exhaust temperature and the temperature protection threshold value comprises:
obtaining a temperature difference between the first exhaust temperature and the temperature protection threshold;
determining a target exhaust temperature according to the temperature difference and a preset exhaust temperature; and
and determining a target opening according to the target exhaust temperature.
Optionally, after adjusting the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal, the method further includes:
detecting the current opening degree of the electronic expansion valve and receiving a current protection signal sent by the compressor protector; and
and controlling the air conditioner according to the current opening and the current protection signal.
Optionally, the controlling the air conditioner according to the current opening degree and the current protection signal includes:
and when the current opening is an opening threshold and the protection signal is a disconnection signal, controlling the air conditioner to stop running.
Further, in order to achieve the above object, the present invention also provides an air conditioner control device applied to an air conditioner including: the system comprises a compressor protector, an exhaust temperature sensor and an electronic expansion valve;
the air conditioner control device includes:
the acquisition module is used for acquiring a first exhaust temperature acquired by the exhaust temperature sensor and a protection signal sent by the compressor protector when the air conditioner operates in a refrigerating mode; and
and the control module is used for adjusting the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal.
In addition, to achieve the above object, the present invention also provides an air conditioner including: a memory, a processor, and an air conditioner control program stored on the memory and executable on the processor, the air conditioner control program configured to implement the air conditioner control method as described above.
Further, to achieve the above object, the present invention also proposes a storage medium having stored thereon an air conditioner control program which, when executed by a processor, implements the air conditioner control method as described above.
According to the invention, when the air conditioner operates in a refrigerating mode, the first exhaust temperature collected by the exhaust temperature sensor and the protection signal sent by the compressor protector are obtained; the opening degree of the electronic expansion valve is adjusted according to the first exhaust temperature and the protection signal, and the self-adaptive adjustment of the opening degree of the electronic expansion valve is achieved through the exhaust temperature acquired by the exhaust temperature sensor and the protection signal of the compressor protector, so that the opening degree of the electronic expansion valve is more reasonable, the overhigh exhaust temperature of the air conditioner is avoided, and the safe and stable operation of the compressor is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioner of 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 method for controlling an air conditioner of the present invention;
FIG. 4 is a flowchart illustrating a second embodiment of a method for controlling an air conditioner according to the present invention;
FIG. 5 is a flow chart illustrating a third embodiment of a method for controlling an air conditioner in accordance with the present invention;
fig. 6 is a block diagram showing the construction of the first embodiment of the air conditioner control device according to the present invention.
| Reference numerals | Name(s) | Reference numerals | Name (R) |
| 1 | |
4 | |
| 11 | Exhaust gas temperature sensor | 5 | Refrigeration |
| 12 | Compressor protector | 6 | Heating throttle valve |
| 2 | Four-way valve | 7 | |
| 3 | |
8 | Evaporator and |
| 31 | |
81 | |
| 32 | |
82 | Indoor |
| 33 | Outdoor |
83 | Indoor |
| 34 | Outdoor environment temperature sensor | 9 | Gas-liquid separator |
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 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. The communication bus 1002 is used to implement connection communication among these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. 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) Memory, or may be 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 does not constitute a limitation 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, an operating system, a network communication module, a user interface module, and an air conditioner control program may be included in the memory 1005, which is one of the storage media.
In the air conditioner shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 of the air conditioner of the present invention may be provided in the air conditioner, and the air conditioner calls the 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.
An embodiment of the present invention provides an air conditioner control method, and 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 this embodiment, the air conditioner control method includes the steps of:
step S10: and when the air conditioner operates in a refrigerating mode, acquiring a first exhaust temperature acquired by the exhaust temperature sensor and a protection signal sent by the compressor protector.
It should be noted that the execution main body of this embodiment may be an air conditioner control device, the air conditioner control device may be an electronic device such as a personal computer or a server, and may also be other devices that can achieve the same or similar functions.
It should be noted that, in the prior art, a temperature sensor is arranged on an exhaust pipe, so as to detect the exhaust temperature in the exhaust pipe when the compressor operates, but in the actual process, the exhaust pipe is not tightened or the exhaust pipe is not wrapped with heat insulation cotton due to manual operation, so that the actual exhaust temperature is higher than the exhaust temperature detected by the temperature sensor, when the temperature detected by the temperature sensor is higher, the compressor actually operates for a longer time in a high-temperature environment, and when the temperature of the compressor is too high, overheat protection is started, shutdown operation is performed, and restarting is performed after the temperature is reduced, such frequent start and stop can not only reduce the service life of the compressor, but also can seriously affect the refrigeration effect of the air conditioner. In addition, in the prior art, a corresponding opening degree is designed for the electronic expansion valve based on the design experience of designers, and then the electronic expansion valve is adjusted according to the pre-designed opening degree, but the actual environment is complex and various, the pre-designed opening degree of the electronic expansion valve is often unreasonable and cannot adapt to a variable environment, so that the exhaust temperature of the air conditioner is too high, and the above influence on the compressor is generated.
In the embodiment, in order to solve the above problems, the structure of the air conditioner is improved accordingly, and the improved structure of the air conditioner is shown in fig. 3. The air conditioner in this embodiment is composed of a compressor 1, a four-way valve 2, a condenser 3, a first filter 4, a heating throttle valve 5, a refrigeration electronic expansion valve 6, a second filter 7, an evaporator 8, a gas-liquid separator 9, an exhaust temperature sensor 11, a compressor protector 12, an upper fan 31, a lower fan 32, an outdoor pipe temperature sensor 33, an outdoor ambient temperature sensor 34, an inner fan 81, an indoor pipe temperature sensor 82, and an indoor ambient temperature sensor 83. When the air conditioner system carries out refrigeration, high-temperature and high-pressure gas refrigerant discharged by a compressor 1 flows through a four-way valve 2, enters a condenser 3 side for heat dissipation, passes through a first filter 4, is throttled by a refrigeration electronic expansion valve 5 to form low-temperature and low-pressure refrigerant, enters an indoor evaporator 8 for heat absorption and evaporation, flows into a gas-liquid separator 9 for gas-liquid separation, gas refrigerant returns to the compressor 1 for circulation, and liquid refrigerant is stored in the gas-liquid separator 9. When the air conditioner system heats, high-temperature and high-pressure gas refrigerant discharged by the compressor 1 flows through the four-way valve 2, enters the evaporator 8 for heat dissipation, passes through the second filter, then is throttled by the heating throttle valve 6 to form low-temperature and low-pressure refrigerant, enters the outdoor condenser 3 for heat absorption and evaporation, flows into the gas-liquid separator 9 for gas-liquid separation, then returns to the compressor 1 for circulation, and stores liquid refrigerant in the gas-liquid separator 9. The exhaust temperature sensor 11 is attached to the exhaust pipe through a fixing clamp or a wire tie and the like, is used for monitoring the exhaust temperature of the exhaust pipe of the compressor and detecting the exhaust temperature, the compressor protector 12 can be set as a temperature controller and is attached to the top cover of the compressor through a compressor wiring cover and used for monitoring the exhaust temperature of the top of the compressor, the compressor protector has a fixed protection threshold value and a recovery threshold value, and when the exhaust temperature is higher than the protection threshold value, the compressor protector is disconnected and the compressor is controlled to stop running; when the exhaust temperature is lower than a recovery threshold value, the compressor protector is closed, and the compressor is controlled to recover normal operation.
It should be noted that, when the air conditioner performs cooling operation, a higher exhaust temperature is easily generated, in this embodiment, after the air conditioner is started, the operation mode of the air conditioner is monitored in real time, and when it is detected that the air conditioner performs cooling operation, the exhaust temperature collected by the exhaust temperature sensor, that is, the first exhaust temperature, and the protection signal of the compressor protector are obtained. In this embodiment, a preset time may also be set, and when the cooling operation reaches the preset time, the first exhaust temperature and the protection signal are automatically obtained.
Further, in the present embodiment, in order to improve the accuracy of controlling the electronic expansion valve, the received protection signal is detected before the opening degree of the electronic expansion valve is adjusted, and the adjustment of the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal is based on the protector sending the off signal.
In a specific implementation, after the protection signal is received, the signal type of the received protection signal is determined according to a signal identifier corresponding to the protection signal, for example, the signal identifier a corresponds to an open signal, and the signal identifier B corresponds to a close signal. Further, if the protection signal is not an open signal, for example, a close signal, the opening degree of the electronic expansion valve is adjusted according to a preset opening degree, where the preset opening degree may be set accordingly according to an actual requirement, which is not limited in this embodiment. Further, the preset opening degree may also be set as a preset opening degree from a preset exhaust temperature, when the protection signal is not the off signal, the opening degree corresponding to the preset exhaust temperature is set as the preset opening degree, for example, when the preset exhaust temperature is 60 °, O is set 2 As the preset opening degree of the electronic expansion valve, the preset exhaust temperature may also be set accordingly according to actual requirements, which is not limited in this embodiment.
Step S20: and adjusting the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal.
In particular implementations, the first exhaust temperature and the protection signal may be retrieved based on the first exhaustThe corresponding relationship between the gas temperature and the opening degree and the corresponding relationship between the protection signal and the opening degree are used for adjusting the opening degree of the electronic expansion valve, for example, the first exhaust gas temperature is T 1 When the protection signal is an off signal, the opening degree of the electronic expansion valve is adjusted to O 1 Also, for example, the first exhaust temperature is T 2 When the protection signal is an off signal, the opening degree of the electronic expansion valve is adjusted to be O 2 The opening degree of the electronic expansion valve may be adjusted in other manners, and may be selected accordingly according to actual requirements, which is not limited in this embodiment.
In the embodiment, when the air conditioner operates in a refrigerating mode, the first exhaust temperature collected by the exhaust temperature sensor and the protection signal sent by the compressor protector are obtained; the opening degree of the electronic expansion valve is adjusted according to the first exhaust temperature and the protection signal, and the self-adaptive adjustment of the opening degree of the electronic expansion valve is achieved through the exhaust temperature acquired by the exhaust temperature sensor and the protection signal of the compressor protector, so that the opening degree of the electronic expansion valve is more reasonable, the exhaust temperature of the air conditioner is prevented from being too high, and the safe and stable operation of the compressor is guaranteed.
Referring to fig. 4, fig. 4 is a flowchart illustrating a control method of an air conditioner according to a second embodiment of the present invention.
Based on the first embodiment, in the air conditioner control method according to this embodiment, the step S20 specifically includes:
step 201: and when the protection signal is a disconnection signal, acquiring a temperature protection threshold value of the compressor protector.
It should be noted that the first discharge temperature is the temperature in the discharge pipe, the top of the compressor also has a corresponding temperature, and based on different discharge temperatures at the top of the compressor, the protection of the compressor set at the top of the compressor performs a corresponding operation and sends a corresponding protection signal. For example, when compressor top exhaust temperature is greater than compressor protector's protection threshold value, compressor protector can control the compressor stall, sends the turn-off signal simultaneously, if compressor top exhaust temperature is less than compressor protector's recovery threshold value again, compressor protector can control the compressor and resume the operation again, sends closure signal simultaneously. The protection threshold of the compressor protector is greater than the recovery threshold of the compressor protector, and the specific value may be set accordingly according to actual requirements, which is not limited in this embodiment.
In specific implementation, when the protection signal belongs to the disconnection signal, in this embodiment, the temperature protection threshold corresponding to the compressor protector may be obtained based on an opening degree adjustment instruction input by a user, or a preset time may be set, and when the preset time is reached, the temperature protection threshold corresponding to the compressor protector is automatically obtained, and of course, other manners may be selected according to actual situations, which is not limited in this embodiment.
Step S202: and determining a target opening according to the first exhaust temperature and the temperature protection threshold value.
In a specific implementation, the air conditioner of this embodiment stores therein a correspondence relationship among the first exhaust gas temperature, the temperature protection threshold value, and the opening degree, and the target opening degree can be determined based on the correspondence relationship, for example, the first exhaust gas temperature is TP 1 The temperature protection threshold is TP 0 When the corresponding target opening degree is O 1 。
Further, in order to more accurately determine the target opening degree corresponding to the electronic expansion valve in the present embodiment, the following manner may be implemented.
In the specific implementation, after the first exhaust temperature and the temperature protection threshold are obtained, the temperature difference between the first exhaust temperature and the temperature protection threshold is calculated, then the target exhaust temperature is calculated according to the temperature difference and the preset exhaust temperature, and finally the opening corresponding to the target exhaust temperature is determined to be the target opening according to the corresponding relation between the exhaust temperature and the opening. Specifically, the target exhaust temperature may be calculated as follows, for example, as TP s ＝TP 1 -. DELTA.TP, wherein TP s Is the target exhaust temperature, TP 1 For the preset exhaust temperature, Δ TP is the temperature difference between the first exhaust temperature and the temperature protection threshold. Further, the correspondence relationship between the exhaust gas temperature and the opening degree may be set in advance, for example, the target exhaust gas temperature is T 0 When the temperature is within the range of 80 degrees, the opening degree of the corresponding electronic expansion valve is set to 80 degrees, and the target exhaust temperature is set to T 1 When the opening degree of the corresponding electronic expansion valve is 100, and the electronic expansion valve has a corresponding opening degree range, for example, 80 to 480]The reference numeral 80 denotes a minimum opening degree of the electronic expansion valve, and 480 denotes a maximum opening degree of the electronic expansion valve, which are not limited in this embodiment, and the correspondence relationship between the exhaust gas temperature and the electronic expansion opening degree and the opening degree range of the electronic expansion valve may be set accordingly according to actual conditions, which are not limited in this embodiment.
Step S203: and adjusting the opening degree of the electronic expansion valve according to the target opening degree.
It is easy to understand that after the target opening degree is determined, the opening degree of the electronic expansion valve is adjusted according to the target opening degree, so that the exhaust temperature in the air conditioner system can be reduced, and the problem that the compressor is frequently started and stopped due to high exhaust temperature can be effectively solved.
In the embodiment, when the protection signal is a disconnection signal, the temperature protection threshold of the compressor protector is obtained; determining a target opening according to the first exhaust temperature and the temperature protection threshold value; and adjusting the opening degree of the electronic expansion valve according to the target opening degree, and adjusting the electronic expansion valve through the target opening degree determined by the first exhaust temperature and the temperature protection threshold value to realize the self-adaptive adjustment of the opening degree of the electronic expansion valve, so that the opening degree of the electronic expansion valve is more reasonable, the overhigh exhaust temperature of the air conditioner is avoided, and the safe and stable operation of the compressor is ensured.
Referring to fig. 5, fig. 5 is a flowchart illustrating a control method of an air conditioner according to a third embodiment of the present invention.
Based on the first or second embodiment, a third embodiment of the air conditioner control method according to the present invention is provided.
Taking the first embodiment as an example for explanation, in this embodiment, the step S20 is followed by:
step S30: and detecting the current opening degree of the electronic expansion valve, and receiving a current protection signal sent by the compressor protector.
It should be noted that, since the opening degree of the electronic expansion valve has a certain opening degree range, in the process of adjusting the opening degree of the electronic expansion valve, the current opening degree of the electronic expansion valve is detected in real time in this embodiment. The protection signal reflects the operation state of the compressor, and in this embodiment, the current signal sent by the compressor protector is received in real time to detect the operation state of the compressor in the process of adjusting the opening degree of the electronic expansion valve. In this embodiment, the current opening degree may be detected and the current protection signal may be received according to a detection instruction input by a user, a preset time may also be set, and when the preset time is reached, the current opening degree is automatically detected and the current protection signal is received.
Step S40: and controlling the air conditioner according to the current opening and the current protection signal.
In specific implementation, in this embodiment, the state of the compressor may be detected according to the obtained current opening and the current protection signal, and the air conditioner may be further controlled based on the state of the compressor.
Further, in order to improve the accurate control of the air conditioner in the present embodiment, it can be implemented as follows.
In the specific implementation, the current opening degree is compared with an opening degree threshold value, the opening degree threshold value in this embodiment is the maximum opening degree that the electronic expansion valve can be opened, when the electronic expansion valve is at the maximum opening degree, the cooling effect on the exhaust temperature is the best, and if at this time, that is, when the current opening degree reaches the opening degree threshold value, and the protection signal is still a disconnection signal, it indicates that the compressor is still in a stopped state and does not resume running when the electronic expansion valve is at the maximum opening degree, in this case, it can be determined that the compressor has a fault, and it is necessary to control the whole air conditioner system to stop running, that is, the whole air conditioner system is controlled to stop running, and fault information of the compressor is output through light, sound, or the like.
In the embodiment, the current opening degree of the electronic expansion valve is detected, and a current protection signal sent by the compressor protector is received; the air conditioner is controlled according to the current opening degree and the current protection signal, the compressor in a fault state is identified and detected through the opening degree of the electronic expansion valve and the protection signal for protecting the compressor, the whole air conditioner is controlled to stop running when the compressor breaks down, and the safety and the stability of the running of the compressor and the air conditioner are improved.
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 steps of the air conditioner control method as described above.
Since the storage medium adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and details are not repeated herein.
Referring to fig. 6, fig. 6 is a block diagram illustrating a first embodiment of an air conditioner control device according to the present invention.
As shown in fig. 6, an air conditioner control device according to an embodiment of the present invention includes:
and the acquisition module 10 is used for acquiring the first exhaust temperature acquired by the exhaust temperature sensor and the protection signal sent by the compressor protector when the air conditioner operates in a refrigerating mode.
It should be noted that the execution subject of this embodiment may be an air conditioner control device, and the air conditioner control device may be an electronic device such as a personal computer or a server, and may also be other devices that can achieve the same or similar functions.
It should be noted that, in the prior art, a temperature sensor is arranged on an exhaust pipe, so as to detect the exhaust temperature in the exhaust pipe when the compressor operates, but in the actual process, the exhaust pipe is not tightened or the exhaust pipe is not wrapped with heat insulation cotton due to manual operation, so that the actual exhaust temperature is higher than the exhaust temperature detected by the temperature sensor, when the temperature detected by the temperature sensor is higher, the compressor actually operates for a longer time in a high-temperature environment, and when the temperature of the compressor is too high, overheat protection is started, shutdown operation is performed, and restarting is performed after the temperature is reduced, such frequent start and stop can not only reduce the service life of the compressor, but also can seriously affect the refrigeration effect of the air conditioner. In addition, in the prior art, a corresponding opening degree is designed for the electronic expansion valve based on the design experience of designers, and then the electronic expansion valve is adjusted according to the pre-designed opening degree, but the actual environment is complex and various, the pre-designed opening degree of the electronic expansion valve is often unreasonable and cannot adapt to a variable environment, so that the exhaust temperature of the air conditioner is too high, and the above influence on the compressor is generated.
In the embodiment, in order to solve the above problems, the structure of the air conditioner is improved accordingly, and the improved structure of the air conditioner is shown in fig. 3. The air conditioner in this embodiment is composed of a compressor 1, a four-way valve 2, a condenser 3, a first filter 4, a heating throttle valve 5, a refrigeration electronic expansion valve 6, a second filter 7, an evaporator 8, a gas-liquid separator 9, an exhaust temperature sensor 11, a compressor protector 12, an upper fan 31, a lower fan 32, an outdoor pipe temperature sensor 33, an outdoor ambient temperature sensor 34, an inner fan 81, an indoor pipe temperature sensor 82, and an indoor ambient temperature sensor 83. When the air conditioner system performs refrigeration, a high-temperature and high-pressure gas refrigerant discharged by a compressor 1 flows through a four-way valve 2, enters a condenser 3 side for heat dissipation, passes through a first filter 4, is throttled by a refrigeration electronic expansion valve 5 to form a low-temperature and low-pressure refrigerant, enters an indoor evaporator 8 for heat absorption and evaporation, flows into a gas-liquid separator 9 for gas-liquid separation, a gaseous refrigerant returns to the compressor 1 for circulation, and a liquid refrigerant is stored in the gas-liquid separator 9. When the air conditioner system heats, high-temperature and high-pressure gas refrigerant discharged by the compressor 1 flows through the four-way valve 2, enters the evaporator 8 for heat dissipation, passes through the second filter, then is throttled by the heating throttle valve 6 to form low-temperature and low-pressure refrigerant, enters the outdoor condenser 3 for heat absorption and evaporation, flows into the gas-liquid separator 9 for gas-liquid separation, then returns to the compressor 1 for circulation, and stores liquid refrigerant in the gas-liquid separator 9. The exhaust temperature sensor 11 is attached to an exhaust pipe through a fixing clamp or a wire tie and the like and is used for monitoring the exhaust temperature of the exhaust pipe of the compressor and detecting the exhaust temperature, the compressor protector 12 can be set as a temperature controller and is attached to a compressor top cover through a compressor wiring cover and used for monitoring the exhaust temperature of the top of the compressor, the compressor protector has a fixed protection threshold value and a recovery threshold value, and when the exhaust temperature is higher than the protection threshold value, the compressor protector is disconnected and the compressor is controlled to stop running; and when the exhaust temperature is lower than the recovery threshold value, the compressor protector is closed, and the compressor is controlled to recover to normal operation.
It should be noted that, when the air conditioner performs cooling operation, a higher exhaust temperature is easily generated, in this embodiment, after the air conditioner is started, the operation mode of the air conditioner is monitored in real time, and when it is detected that the air conditioner performs cooling operation, the exhaust temperature acquired by the exhaust temperature sensor, that is, the first exhaust temperature, and the protection signal of the compressor protector are acquired. In this embodiment, a preset time may also be set, and when the cooling operation reaches the preset time, the first exhaust temperature and the protection signal are automatically obtained.
Further, in the present embodiment, in order to improve the accuracy of controlling the electronic expansion valve, the received protection signal is detected before the opening degree of the electronic expansion valve is adjusted, and the adjustment of the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal is based on the protector sending the off signal.
In a specific implementation, after the protection signal is received, the signal type of the received protection signal is determined according to a signal identifier corresponding to the protection signal, for example, the signal identifier a corresponds to an open signal, and the signal identifier B corresponds to a close signal. Further on toIf the protection signal is not an open signal, for example, a close signal, the opening degree of the electronic expansion valve is adjusted according to a preset opening degree, where the preset opening degree may be set according to actual requirements, which is not limited in this embodiment. Further, the preset opening degree may also be set as a preset opening degree from a preset exhaust temperature, when the protection signal is not the off signal, the opening degree corresponding to the preset exhaust temperature is set as the preset opening degree, for example, when the preset exhaust temperature is 60 °, O is set 2 As the preset opening degree of the electronic expansion valve, the preset exhaust temperature may also be set accordingly according to actual requirements, which is not limited in this embodiment.
And the control module 20 is configured to adjust the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal.
In a specific implementation, after the first exhaust temperature and the protection signal are obtained again, the opening degree of the electronic expansion valve may be adjusted based on the correspondence relationship between the opening degree and the protection signal and the first exhaust temperature, for example, the first exhaust temperature is T 1 When the protection signal is an off signal, the opening degree of the electronic expansion valve is adjusted to O 1 Again, if the first exhaust temperature is T 2 When the protection signal is an off signal, the opening degree of the electronic expansion valve is adjusted to be O 2 The opening degree of the electronic expansion valve may be adjusted in other manners, and may be selected accordingly according to actual requirements, which is not limited in this embodiment.
In the embodiment, when the air conditioner operates in a refrigerating mode, the first exhaust temperature acquired by the exhaust temperature sensor and the protection signal sent by the compressor protector are acquired; the opening degree of the electronic expansion valve is adjusted according to the first exhaust temperature and the protection signal, and the self-adaptive adjustment of the opening degree of the electronic expansion valve is achieved through the exhaust temperature acquired by the exhaust temperature sensor and the protection signal of the compressor protector, so that the opening degree of the electronic expansion valve is more reasonable, the exhaust temperature of the air conditioner is prevented from being too high, and the safe and stable operation of the compressor is guaranteed.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, the technical details that are not described in detail in this embodiment can be referred to the air conditioner control method provided in any embodiment of the present invention, and are not described herein again.
Further, it is to 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 only for description, and do not represent the advantages and disadvantages of the embodiments.
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 solution 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. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, 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 is applied to an air conditioner, and the air conditioner comprises the following steps: the system comprises a compressor protector, an exhaust temperature sensor and an electronic expansion valve;
the air conditioner control method includes:
when the air conditioner operates in a refrigerating mode, acquiring a first exhaust temperature acquired by the exhaust temperature sensor and a protection signal sent by the compressor protector; and
and adjusting the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal.
2. The air conditioner control method according to claim 1, wherein before adjusting the opening degree of the electronic expansion valve according to the first discharge temperature and the protection signal, further comprising:
detecting whether the protection signal is a disconnection signal; and
and when the protection signal is an off signal, executing the step of adjusting the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal.
3. The air conditioner controlling method of claim 2, after detecting whether the protection signal is an off signal, further comprising:
and when the protection signal is not a disconnection signal, adjusting the opening degree of the electronic expansion valve to be a preset opening degree.
4. The air conditioner control method according to claim 1, wherein said adjusting the opening degree of the electronic expansion valve according to the first discharge temperature and the protection signal comprises:
when the protection signal is a disconnection signal, acquiring a temperature protection threshold value of the compressor protector;
determining a target opening according to the first exhaust temperature and the temperature protection threshold value; and
and adjusting the opening degree of the electronic expansion valve according to the target opening degree.
5. The air conditioner control method as claimed in claim 4, wherein said determining a target opening degree based on the first exhaust temperature and the temperature protection threshold value includes:
obtaining a temperature difference between the first exhaust temperature and the temperature protection threshold;
determining a target exhaust temperature according to the temperature difference and a preset exhaust temperature; and
and determining a target opening according to the target exhaust temperature.
6. The air conditioner control method according to any one of claims 1 to 5, further comprising, after adjusting the opening degree of the electronic expansion valve according to the first discharge temperature and the protection signal:
detecting the current opening degree of the electronic expansion valve and receiving a current protection signal sent by the compressor protector; and
and controlling the air conditioner according to the current opening and the current protection signal.
7. The air conditioner controlling method of claim 6, wherein said controlling the air conditioner according to the current opening degree and the current protection signal comprises:
and when the current opening is an opening threshold and the protection signal is a disconnection signal, controlling the air conditioner to stop running.
8. An air conditioner control device, characterized in that, the air conditioner control device is applied to an air conditioner, the air conditioner includes: the system comprises a compressor protector, an exhaust temperature sensor and an electronic expansion valve;
the air conditioner control device includes:
the acquisition module is used for acquiring a first exhaust temperature acquired by the exhaust temperature sensor and a protection signal sent by the compressor protector when the air conditioner operates in a refrigerating mode; and
and the control module is used for adjusting the opening degree of the electronic expansion valve according to the first exhaust temperature and the protection signal.
9. An air conditioner, characterized in that the air conditioner 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 configured to implement the air conditioner control method according to any one of claims 1 to 7.
10. A storage medium, characterized in that an air conditioner control program is stored thereon, which when executed by a processor implements the air conditioner control method according to any one of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110879253.0A CN115682330A (en) | 2021-07-30 | 2021-07-30 | Air conditioner control method and device, storage medium and air conditioner |
| PCT/CN2022/101029 WO2023005531A1 (en) | 2021-07-30 | 2022-06-24 | Control method and apparatus for air conditioner, and storage medium and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110879253.0A CN115682330A (en) | 2021-07-30 | 2021-07-30 | Air conditioner control method and device, storage medium and air conditioner |
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| CN115682330A true CN115682330A (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110879253.0A Pending CN115682330A (en) | 2021-07-30 | 2021-07-30 | Air conditioner control method and device, storage medium and air conditioner |
Country Status (2)
| Country | Link |
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| CN (1) | CN115682330A (en) |
| WO (1) | WO2023005531A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05280810A (en) * | 1992-03-18 | 1993-10-29 | Hitachi Ltd | Air conditioner |
| JP6191490B2 (en) * | 2014-02-06 | 2017-09-06 | 株式会社富士通ゼネラル | Air conditioner |
| CN108895606A (en) * | 2018-05-31 | 2018-11-27 | 四川长虹空调有限公司 | A kind of transducer air conditioning exhaust sensor dropping detection method and system |
| CN111141001B (en) * | 2019-12-31 | 2021-08-24 | Tcl空调器(中山)有限公司 | Control method of air conditioner, air conditioner and computer readable storage medium |
| CN111795479A (en) * | 2020-07-09 | 2020-10-20 | 广东Tcl智能暖通设备有限公司 | Control method and device for air conditioner outdoor unit, air conditioner outdoor unit and storage medium |
| CN112665099A (en) * | 2020-12-10 | 2021-04-16 | 珠海格力电器股份有限公司 | Compressor exhaust high-temperature protection control method and device, air conditioner and control system |
-
2021
- 2021-07-30 CN CN202110879253.0A patent/CN115682330A/en active Pending
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2022
- 2022-06-24 WO PCT/CN2022/101029 patent/WO2023005531A1/en unknown
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| WO2023005531A1 (en) | 2023-02-02 |
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