CN111306731A - Air conditioner electromagnetic valve control method, device and equipment, electromagnetic valve system and air conditioner - Google Patents
Air conditioner electromagnetic valve control method, device and equipment, electromagnetic valve system and air conditioner Download PDFInfo
- Publication number
- CN111306731A CN111306731A CN202010140047.3A CN202010140047A CN111306731A CN 111306731 A CN111306731 A CN 111306731A CN 202010140047 A CN202010140047 A CN 202010140047A CN 111306731 A CN111306731 A CN 111306731A
- Authority
- CN
- China
- Prior art keywords
- temperature
- electromagnetic valve
- air conditioner
- opening time
- refrigerant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The application relates to an air conditioner electromagnetic valve control method, device and equipment, an electromagnetic valve system and an air conditioner. The method comprises the following steps: the method comprises the steps of obtaining the temperature of a refrigerant inlet pipe of an air conditioner external unit and the temperature of a refrigerant outlet pipe of the air conditioner internal unit, calculating to obtain the superheat degree of the refrigerant, correcting the initial opening time of an electromagnetic valve according to the comparison result of the superheat degree of the refrigerant and a preset superheat degree threshold value, obtaining target opening time according to the corrected opening time of the electromagnetic valve, and controlling the opening of the electromagnetic valve according to the target opening time. The length of the liquid pipe connecting pipe is lengthened to cause superheat degree change, initial opening time of the electromagnetic valve is corrected according to a comparison result of refrigerant superheat degree and a preset superheat degree threshold value, corrected opening time of the electromagnetic valve can be obtained according to the length difference of the connecting pipe, system pressure lag is avoided, pressure load of a compressor when the electromagnetic valve is opened is reduced, system stability when the electromagnetic valve is opened is improved, and use reliability is improved.
Description
Technical Field
The application relates to the technical field of electrical equipment, in particular to a method, a device and equipment for controlling an air conditioner electromagnetic valve, an electromagnetic valve system and an air conditioner.
Background
The compressor is an essential component for the operation of the air conditioner, and functions to compress a driving refrigerant in the air conditioner refrigerant circuit. At present, the enhanced vapor injection of the compressor is controlled by adopting an electromagnetic valve, and the electromagnetic valve only has a switching function and controls the conduction or the closing of a channel where the electromagnetic valve is positioned.
Because the installation position is limited, the air conditioner needs to consider lengthening the connecting pipe and adding the refrigerant perfusion amount to achieve the purpose of the same refrigeration effect, but because the connecting pipe is longer, the pressure of the whole air conditioner system is lagged, the pressure sudden change occurs in the opening moment of the traditional electromagnetic valve, the pressure load of the compressor is larger, and the reliability risk is increased rapidly.
Disclosure of Invention
Therefore, it is necessary to provide an air conditioner solenoid valve control method, device, equipment, solenoid valve system and an air conditioner aiming at the problem that the reliability risk is increased sharply when the traditional solenoid valve is used.
A control method of an air conditioner electromagnetic valve comprises the following steps:
acquiring the temperature of a refrigerant inlet pipe of an air conditioner external unit and the temperature of a refrigerant outlet pipe of the air conditioner internal unit;
calculating the superheat degree of a refrigerant according to the temperature of the inlet pipe and the temperature of the outlet pipe;
correcting the initial opening time of the electromagnetic valve according to the comparison result of the refrigerant superheat degree and a preset superheat degree threshold value to obtain the corrected opening time of the electromagnetic valve;
and obtaining target opening time according to the corrected opening time of the electromagnetic valve, and controlling the electromagnetic valve to be opened according to the target opening time.
An air conditioner solenoid valve control device comprising:
the inlet and outlet temperature acquisition module is used for acquiring the temperature of a refrigerant inlet pipe of an air conditioner external unit and the temperature of a refrigerant outlet pipe of the air conditioner internal unit;
the refrigerant superheat degree acquisition module is used for calculating the refrigerant superheat degree according to the temperature of the inlet pipe and the temperature of the outlet pipe;
the correction module is used for correcting the initial opening time of the electromagnetic valve according to the comparison result of the refrigerant superheat degree and a preset superheat degree threshold value to obtain the corrected opening time of the electromagnetic valve;
and the operation control module is used for obtaining target opening time according to the corrected opening time of the electromagnetic valve and controlling the electromagnetic valve to be opened according to the target opening time.
The air conditioner electromagnetic valve control equipment is characterized by comprising a temperature detector and a controller, wherein the temperature detector is connected with the controller, the temperature detector is used for detecting the temperature of an inlet pipe of an air conditioner external unit refrigerant and the temperature of an outlet pipe of the air conditioner internal unit refrigerant and sending the temperatures to the controller, and the controller is used for executing the method to control the air conditioner electromagnetic valve.
A solenoid valve system comprises a solenoid valve and the air conditioner solenoid valve control device.
An air conditioner comprises the solenoid valve system.
According to the air conditioner electromagnetic valve control method, the air conditioner electromagnetic valve control device, the air conditioner electromagnetic valve control equipment, the electromagnetic valve system and the air conditioner, after the temperature of a refrigerant inlet pipe of an air conditioner outdoor unit and the temperature of a refrigerant outlet pipe of an air conditioner indoor unit are obtained, the superheat degree of the refrigerant is obtained through calculation according to the temperature of the refrigerant inlet pipe and the temperature of the refrigerant outlet pipe, the length of a connecting pipe of an air conditioner air pipe and a connecting pipe of a liquid pipe is lengthened, heat exchange with the ambient temperature occurs between the middle of the connecting pipe and the middle of the connecting pipe, and the loss of cold energy occurs, so that the superheat degree is changed, the change of the length of the connecting pipe can be reflected by the, the pressure load of the compressor when the electromagnetic valve is opened is reduced, the system stability when the electromagnetic valve is opened is improved, and the use reliability is improved.
Drawings
FIG. 1 is a flow chart of a method for controlling an air conditioner solenoid valve according to an embodiment;
FIG. 2 is a flow chart of a solenoid valve control method of an air conditioner according to another embodiment;
FIG. 3 is a flowchart of a solenoid control method for an air conditioner according to still another embodiment;
FIG. 4 is a flowchart of a solenoid control method for an air conditioner according to still another embodiment;
FIG. 5 is a schematic view of an air conditioning compression system in one embodiment;
FIG. 6 is a schematic view of a flash tank in one embodiment;
fig. 7 is a flowchart illustrating a method for controlling an electromagnetic valve of an air conditioner according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described more fully below by way of examples in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In one embodiment, please refer to fig. 1, a method for controlling an electromagnetic valve of an air conditioner is provided, which includes the following steps:
step S200: and acquiring the temperature of a refrigerant inlet pipe of an air conditioner external unit and the temperature of a refrigerant outlet pipe of the air conditioner internal unit.
After the air conditioner is completely installed, the air conditioner enters a debugging stage, and the air conditioner normally operates after being started, in this embodiment, please refer to fig. 5, the air conditioner set comprises an outdoor two-stage frequency converter and an indoor unit, the indoor unit can be a duct machine, a pedestal crane or a raise crane, the indoor unit comprises an evaporator, the outdoor two-stage frequency converter comprises a heating electronic expansion valve, a flash tank, an air-supplementing electromagnetic valve, a refrigerating electronic expansion valve, a condenser, a vapor-liquid separator and a compressor, gaseous refrigerant discharged by the compressor is condensed by the condenser, and is converted into liquid refrigerant by the throttling function of the electronic expansion valve, enthalpy is increased by the air-supplementing of the flash tank, the refrigerant flows into the flash tank, please refer to fig. 6, the refrigerant becomes gaseous refrigerant by a flash evaporation part, part is the liquid refrigerant, the gaseous refrigerant enters the two-stage compressor after being flashed, and is sent, finally, the gas enters the compressor for compression.
After the air conditioner is started, the temperature of a refrigerant inlet pipe of an air conditioner external unit and the temperature of a refrigerant outlet pipe of an air conditioner internal unit are obtained, specifically, the temperature of the refrigerant inlet pipe of the air conditioner external unit and the temperature of the refrigerant outlet pipe of the air conditioner internal unit can be obtained through a control device, and the control device can adopt a main control board embedded in the air conditioner to reduce the use cost of devices. The method for obtaining the temperature of the refrigerant inlet pipe of the air conditioner external unit and the temperature of the refrigerant outlet pipe of the air conditioner internal unit is not unique, for example, after the temperature of the refrigerant inlet pipe of the air conditioner external unit and the temperature of the refrigerant outlet pipe of the air conditioner internal unit are detected by a user, the detected temperatures are input into the input device, and the input device transmits the received temperature data to the control device. It is understood that, in other embodiments, the temperature of the refrigerant inlet pipe of the outdoor unit of the air conditioner and the temperature of the refrigerant outlet pipe of the indoor unit of the air conditioner may be obtained in other manners, as long as the skilled person in the art can consider the achievement.
Step S400: and calculating the superheat degree of the refrigerant according to the temperature of the inlet pipe and the temperature of the outlet pipe.
After the temperature of an inlet pipe of an air conditioner outdoor unit refrigerant and the temperature of an outlet pipe of an air conditioner indoor unit refrigerant are obtained, the superheat degree of the refrigerant can be calculated according to the temperature of the inlet pipe and the temperature of the outlet pipe, the refrigerant can exchange heat with the ambient temperature in the process of being transmitted from the inlet pipe of the outdoor unit to the outlet pipe of the indoor unit through an indoor unit and outdoor unit connecting pipe, and the heat loss occurs. The method for calculating the superheat degree of the refrigerant is not unique, in this embodiment, the superheat degree of the refrigerant can be obtained according to a quotient of the temperature of the inlet pipe and the temperature of the outlet pipe, and the larger the value of the quotient of the temperature of the inlet pipe and the temperature of the outlet pipe is, the larger the heat loss between the inlet pipe and the outlet pipe is, the longer the length of the inner and outer machine connecting pipe is, and the numerical value of the superheat degree of the refrigerant can reflect the length change of the inner and outer machine connecting pipe. It is understood that in other embodiments, the superheat degree of the refrigerant may be calculated according to the inlet pipe temperature and the outlet pipe temperature in other manners, as long as the calculation is realized by those skilled in the art.
Step S600: and correcting the initial opening time of the electromagnetic valve according to the comparison result of the refrigerant superheat degree and a preset superheat degree threshold value to obtain the corrected opening time of the electromagnetic valve.
And after the superheat degree of the refrigerant is obtained through calculation, comparing the calculated superheat degree of the refrigerant with a preset superheat degree threshold value. The mode of comparing the refrigerant superheat degree with the preset superheat degree threshold value is not unique, the obtained comparison result is different, the comparison result can be a difference value or a quotient value of the refrigerant superheat degree and the preset superheat degree threshold value, and the difference between the refrigerant superheat degree and the preset superheat degree threshold value can be represented. The value of the preset superheat threshold is not unique, adjustment can be performed according to the calculation process of the refrigerant superheat, and when the refrigerant superheat is obtained through calculation of the division of the inlet pipe temperature and the outlet pipe temperature, the value of the corresponding preset superheat threshold is different from the value of the corresponding preset superheat threshold when the refrigerant superheat is obtained through calculation of the subtraction of the inlet pipe temperature and the outlet pipe temperature.
The initial opening time of the electromagnetic valve is determined according to the cold quantity of the air conditioner type, after the air conditioner is installed, the air conditioner is started to enter an intelligent debugging stage, initially, the air conditioner operates at the upper frequency limit under the environment temperature, namely the maximum operation frequency of the whole machine, and the frequency conversion compressor can reduce the current frequency by detecting the indoor environment temperature. At the moment, the initial opening time of the electromagnetic valve corresponding to the current air conditioner type is obtained from the stored data, or the initial opening time of the electromagnetic valve is set by a user and then is input into the control device.
After the comparison result of the refrigerant superheat degree and the preset superheat degree threshold value and the initial opening time of the electromagnetic valve are determined, the initial opening time of the electromagnetic valve is corrected according to the comparison result of the refrigerant superheat degree and the preset superheat degree threshold value, and the corrected opening time of the electromagnetic valve is obtained. The method for correcting the initial opening time of the electromagnetic valve is not unique, and in this embodiment, the initial opening time of the electromagnetic valve may be multiplied by a specific coefficient for correction, when the coefficient is greater than 1, the opening time of the electromagnetic valve may be extended, and when the coefficient is less than 1, the opening time of the electromagnetic valve may be shortened, which may be specifically adjusted according to actual requirements. It is understood that in other embodiments, the initial opening time of the solenoid valve may be modified in other manners, such as adding or subtracting a specific value from the initial opening time of the solenoid valve, so as to change the initial opening time of the solenoid valve, as long as the skilled person can realize the modification.
Step S800: and obtaining target opening time according to the corrected opening time of the electromagnetic valve, and controlling the opening of the electromagnetic valve according to the target opening time.
After the corrected opening time of the electromagnetic valve is obtained, the corrected opening time of the electromagnetic valve can be directly used as the target opening time, and the electromagnetic valve is controlled to be opened according to the target opening time. Taking the comparison result of the refrigerant superheat degree and the preset superheat degree threshold value as the difference value between the refrigerant superheat degree and the preset superheat degree threshold value, taking the preset superheat degree threshold value as 3 as an example, when the difference value between the refrigerant superheat degree and the preset superheat degree threshold value is larger than 3, considering that the length of the current air conditioner connecting pipe is longer, correcting the initial opening time of the electromagnetic valve at the moment, taking the value smaller than the initial opening time of the electromagnetic valve as the corrected opening time of the electromagnetic valve, and shortening the opening time of the electromagnetic valve can avoid overhigh load of the compressor due to the fact that the connecting pipe is longer, so that the working stability of the system is improved.
In one embodiment, referring to fig. 2, step S600 includes steps S620 to S660.
Step S620: and correcting the initial opening time of the electromagnetic valve according to the comparison result of the refrigerant superheat degree and a preset superheat degree threshold value to obtain first correction time.
In this embodiment, the correction of the initial opening time of the electromagnetic valve according to the comparison result of the refrigerant superheat degree and the preset superheat degree threshold value to obtain the first correction time is a first correction process, and after the first correction time is obtained, the first correction time can be further corrected and adjusted, so that the accuracy of the corrected opening time of the electromagnetic valve is improved. It is understood that, in other embodiments, the initial opening time of the solenoid valve may be corrected only according to the comparison result between the refrigerant superheat degree and the preset superheat degree threshold value to obtain the first correction time, the first correction time may be used as the corrected opening time of the solenoid valve, and the opening time of the solenoid valve may be corrected only according to the superheat degree correction, which is simple and easy to implement.
Step S640: and acquiring the high-pressure corresponding saturation temperature of the air conditioning system.
After the superheat degree correction is carried out, the first correction time can be obtained, and the refrigerant filling amount also has a limiting effect on the opening time of the electromagnetic valve, so that the refrigerant filling amount is too much, too large load can be caused, and the pressure mutation phenomenon can occur. Therefore, the degree of superheat is corrected and then the amount of filling is further corrected, whereby the operational reliability of the solenoid valve can be further improved.
Acquiring the saturation temperature corresponding to the high pressure of the air conditioning system is the first step of correcting the perfusion volume. Specifically, the control device can acquire the saturation temperature corresponding to the high pressure of the air conditioning system, and the control device can adopt a main control board embedded in the air conditioner so as to reduce the use cost of devices. The method for acquiring the saturation temperature corresponding to the high pressure of the air conditioning system is not unique, for example, after the saturation temperature corresponding to the high pressure of the air conditioning system is detected by a user, the detected temperature is input into the input device, and the input device transmits the received temperature data to the control device. It is understood that in other embodiments, the high pressure corresponding saturation temperature of the air conditioning system may be obtained in other manners, as long as the skilled person can realize the saturation temperature.
Step S660: and correcting the first correction time according to the comparison result of the saturation temperature corresponding to the high pressure of the air conditioning system and the preset temperature threshold value to obtain the corrected opening time of the electromagnetic valve.
And after the high-pressure corresponding saturation temperature of the air conditioning system is obtained, comparing the high-pressure corresponding saturation temperature of the air conditioning system with a preset temperature threshold. The mode of comparing the saturation temperature corresponding to the high pressure of the air conditioning system with the preset temperature threshold value is not unique, the obtained comparison results are different, the comparison result can be the difference value or quotient value of the saturation temperature corresponding to the high pressure of the air conditioning system and the preset temperature threshold value, and the difference value between the saturation temperature corresponding to the high pressure of the air conditioning system and the preset temperature threshold value can be represented.
The step of correcting the first correction time according to the comparison result of the high-pressure corresponding saturation temperature of the air conditioning system and the preset temperature threshold is carried out after the step of correcting the initial opening time of the electromagnetic valve according to the comparison result of the superheat degree of the refrigerant and the preset superheat degree threshold, so that the object of correcting according to the comparison result of the high-pressure corresponding saturation temperature of the air conditioning system and the preset temperature threshold is to further correct the first correction time according to the first correction time obtained by correcting the initial opening time of the electromagnetic valve according to the comparison result of the superheat degree of the refrigerant and the preset superheat degree threshold.
The manner of correcting the first correction time is not exclusive, and in this embodiment, the first correction time may be multiplied by a specific coefficient to perform correction, when the coefficient is greater than 1, the solenoid valve opening time may be extended, and when the coefficient is less than 1, the solenoid valve opening time may be shortened, which may be specifically adjusted according to actual requirements. It is understood that in other embodiments, the first correction time may be modified in other manners, such as adding or subtracting a specific value from the first correction time, so as to change the magnitude of the first correction time, as long as the skilled person can realize.
In one embodiment, referring to fig. 3, the preset superheat threshold includes a preset superheat upper limit value and a preset superheat lower limit value, and step S620 includes steps S622 to S626.
Step S622: and when the superheat degree of the refrigerant is greater than or equal to the preset superheat degree upper limit value, taking the time less than the initial opening time of the electromagnetic valve as the corrected opening time of the electromagnetic valve.
When the preset superheat threshold comprises more than two thresholds, different threshold intervals can be obtained through division, and the initial opening time of the electromagnetic valve can be corrected to different degrees according to different threshold intervals where the superheat degree of the refrigerant is located, so that the accuracy of a correction result is improved. When the superheat degree of the refrigerant is larger than or equal to the preset superheat degree upper limit value, the superheat degree of the refrigerant is considered to be high, the heat lost by the refrigerant in the transmission process is large, the length of an internal and external machine connecting pipe bearing the refrigerant is long, the time which is smaller than the initial opening time of the electromagnetic valve is taken as first correction time, the overhigh load of the compressor can be avoided, and the working stability of the system is improved. Specifically, the initial opening time of the solenoid valve may be multiplied by a correction factor smaller than 1, so that the first correction time is smaller than the initial opening time of the solenoid valve. The specific value of the correction coefficient is not exclusive and may be, for example, 0.9 or other values as long as the skilled person can realize the correction.
Step S624: and when the superheat degree of the refrigerant is smaller than a preset superheat degree lower limit value, taking the initial opening time of the electromagnetic valve as first correction time.
When the superheat degree of the refrigerant is smaller than the preset superheat degree lower limit value, the superheat degree of the refrigerant is considered to be low, the heat lost by the refrigerant in the transmission process is less, the length of the connecting pipe of the internal machine and the external machine bearing the refrigerant is close to that of the standard connecting pipe, and the reliability risk cannot be caused by taking the initial opening time of the electromagnetic valve as the first correction time. Specifically, the initial solenoid valve opening time may be multiplied by a correction factor equal to 1 such that the first correction time is equal to the initial solenoid valve opening time. Further, the time slightly longer than the initial opening time of the electromagnetic valve can be used as the first correction time, the opening time of the electromagnetic valve is prolonged, and the risk of long establishment time such as the air suction superheat degree is avoided.
Step S626: and when the refrigerant superheat degree is greater than or equal to a preset superheat degree lower limit value and smaller than a preset superheat degree upper limit value, taking the time of the difference value of the initial opening time of the electromagnetic valve within an allowable error range as first correction time.
When the refrigerant superheat degree is larger than or equal to the preset superheat degree lower limit value and smaller than the preset superheat degree upper limit value, the length change of the connecting pipe is slightly large, the time, within an allowable error range, of the difference value of the initial opening time of the electromagnetic valve serves as first correction time, the opening time of the electromagnetic valve of the standard connecting pipe is slightly corrected, and reliability risks cannot be caused. Specifically, the initial opening time of the solenoid valve may be multiplied by a correction coefficient within an allowable error range from 1, so that a difference value between the first correction time and the initial opening time of the solenoid valve is within the allowable error range. The specific value of the correction coefficient is not exclusive and may be, for example, 1.1 or other values as long as the skilled person can realize the correction.
In one embodiment, referring to fig. 3, the temperature threshold includes a first temperature threshold, a second temperature threshold and a third temperature threshold, the first temperature threshold is smaller than the second temperature threshold, the second temperature threshold is smaller than the third temperature threshold, and step S660 includes steps S662 to S666.
Step S662: and when the saturation temperature corresponding to the high pressure of the air conditioning system is greater than or equal to the third temperature threshold, taking the time less than the first correction time as the corrected opening time of the electromagnetic valve.
When the preset temperature threshold comprises a plurality of thresholds, different threshold intervals can be obtained through division, and the first correction time can be corrected to different degrees according to different threshold intervals where the high-pressure corresponding saturation temperature of the air conditioning system is located, so that the accuracy of the correction result is improved. When the corresponding saturation temperature of the high pressure of the air conditioning system is greater than or equal to the third temperature threshold, the temperature is high, the refrigerant filling amount is large, the overall pressure rises sharply at the temperature, the time which is less than the first correction time is taken as the corrected electromagnetic valve opening time, the electromagnetic valve opening time is short, and the reliability risk is avoided. Specifically, the first correction time may be multiplied by a correction coefficient smaller than 1, so that the opening time of the solenoid valve after the current correction is smaller than the first correction time. The specific value of the correction coefficient is not exclusive and may be, for example, 0.8 or other values as long as the skilled person can realize the correction.
Step S664: and when the corresponding saturation temperature of the high pressure of the air conditioning system is greater than or equal to the first temperature threshold and is less than the second temperature threshold, taking the time greater than the first correction time as the corrected opening time of the electromagnetic valve.
When the corresponding saturation temperature of the high pressure of the air conditioning system is greater than or equal to the first temperature threshold and less than the second temperature threshold, the refrigerant filling amount is less and the pressure reliability risk is lower in the state that the corresponding saturation temperature of the high pressure of the air conditioning system is lower, the opening time of the electromagnetic valve can be relatively prolonged, the time greater than the first correction time is taken as the corrected opening time of the electromagnetic valve, and the reliable operation of the system can be guaranteed. Specifically, the first correction time may be multiplied by a correction coefficient greater than 1, so that the solenoid valve opening time after the current correction is greater than the first correction time. The specific value of the correction coefficient is not exclusive and may be, for example, 1.2 or other values as long as the skilled person can realize the correction.
Step S666: and when the corresponding saturation temperature of the high pressure of the air conditioning system is greater than or equal to the second temperature threshold and is less than the third temperature threshold, taking the time of which the difference value with the first correction time is within the allowable error range as the corrected opening time of the electromagnetic valve.
When the saturation temperature corresponding to the high pressure of the air conditioning system is greater than or equal to the second temperature threshold and is smaller than the third temperature threshold, the slight change of the refrigerant filling amount is considered, the time, within the allowable error range, of the difference value with the first correction time is taken as the corrected electromagnetic valve opening time, the first correction time is slightly corrected, and the reliability risk cannot be caused. Specifically, the first correction time may be multiplied by a correction coefficient within an allowable error range from 1, so that a difference value between the solenoid valve opening time after the current correction and the first correction time is within the allowable error range. The specific value of the correction coefficient is not exclusive and may be, for example, 0.9 or other values as long as the skilled person can realize the correction. Taking the correction coefficient of 0.9 as an example, at the temperature, the filling amount of the compressor is increased, the overall pressure is increased, the opening time of the electromagnetic valve is short, and the over-high load of the compressor is avoided.
In one embodiment, referring to fig. 4, the high-pressure corresponding saturation temperature of the air conditioning system includes a condenser temperature of an outdoor unit and an evaporator temperature of an air conditioner, and step S640 includes steps S642 to S646.
Step S642: and acquiring the current working mode of the air conditioner.
Step S644: when the air conditioner works in a refrigeration mode, the pipe temperature of the condenser of the air conditioner external unit is obtained and used as the high-pressure corresponding saturation temperature of the air conditioning system.
Step S646: when the air conditioner works in the heating mode, the temperature of the evaporator tube of the air conditioner is obtained as the high-pressure corresponding saturation temperature of the air conditioning system.
The types of the saturation temperature corresponding to the high pressure of the system are different under different working modes of the air conditioner. Specifically, the current working mode of the air conditioner can be acquired by the control device, and the control device can adopt a main control board embedded in the air conditioner so as to reduce the use cost of devices. When the air conditioner works in a cooling mode, the high-pressure corresponding saturation temperature of the air conditioning system is the temperature of the condenser pipe of the air conditioner external unit, and when the air conditioner works in a heating mode, the high-pressure corresponding saturation temperature of the air conditioning system is the temperature of the evaporator pipe of the air conditioner.
In one embodiment, referring to fig. 2, step S400 includes step S420.
Step S420: and calculating the difference value between the temperature of the inlet pipe and the temperature of the outlet pipe, and taking the difference value as the superheat degree of the refrigerant.
The method for calculating the superheat degree of the refrigerant is not unique, in the embodiment, the superheat degree of the refrigerant can be obtained according to the difference between the temperature of the inlet pipe and the temperature of the outlet pipe of the air conditioner external unit refrigerant inlet pipe, the temperature of the inlet pipe and the temperature of the outlet pipe of the air conditioner internal unit refrigerant is larger, and the length of the inner and outer unit connecting pipe is larger, so that the superheat degree of the refrigerant is smaller, wherein △ t is equal to the length change of the inner and outer unit connecting pipe of the air conditioner external unit refrigerant inlet pipe-temperature of the air conditioner internal unit refrigerant outlet pipe, and the difference between the temperature of the inlet pipe and the temperature of the outlet pipe is larger, so that the larger the heat loss between the inlet pipe and the outlet pipe is, the longer the length of the inner and outer unit connecting pipe is, and the numerical value of the superheat degree of the inner and outer unit connecting pipe can reflect the length change of the inner and outer unit connecting pipe.
In one embodiment, referring to fig. 2, step S800 includes step S820.
Step S820: and integrating the corrected opening time of the electromagnetic valve to obtain target opening time, and controlling the opening of the electromagnetic valve according to the target opening time.
After the corrected opening time of the electromagnetic valve is obtained, the corrected opening time of the electromagnetic valve is rounded and used as a target opening time, for example, when the corrected opening time of the electromagnetic valve is 3.2 seconds, the corrected opening time of the electromagnetic valve is used as the target opening time, and the electromagnetic valve is controlled to be opened for 3 seconds. And the corrected opening time of the electromagnetic valve is rounded to be used as the opening time, so that the logic processing is facilitated.
In one embodiment, referring to fig. 2, step S200 includes step S220.
Step S220: and sending a temperature detection control signal to the temperature detector, and receiving the temperature of the air conditioner external unit refrigerant inlet pipe and the temperature of the air conditioner internal unit refrigerant outlet pipe returned by the temperature detector.
The temperature detection control signal is used for controlling the temperature detector to detect the temperature of the refrigerant inlet pipe of the air conditioner external unit and the temperature of the refrigerant outlet pipe of the air conditioner internal unit. Specifically, the control device can send temperature detection control signals to the temperature detectors, the number of the temperature detectors is more than two, the temperature detectors are respectively arranged at the position of an air conditioner external unit refrigerant inlet pipe and the position of an air conditioner internal unit refrigerant outlet pipe, the temperature detectors receive the temperature detection control signals and then send the detected temperature to the control device, and the control device processes the received temperature. The type of the temperature detector is not exclusive, and a temperature sensing bulb of the air conditioner can be adopted. It is understood that in other embodiments, the temperature detector may be other types of devices, as deemed practicable by those skilled in the art.
For a better understanding of the above embodiments, the following detailed description is given in conjunction with a specific embodiment. In one embodiment, the air conditioner is in a cooling mode, referring to fig. 7, the flow of the method for controlling the solenoid valve of the air conditioner is as follows: the installation is accomplished, and the start enters intelligent debugging stage, and frequency upper limit operation under this ambient temperature is according to the operation of standard connecting pipe tonifying qi solenoid valve opening time, and the initial solenoid valve opening time T of input is T ═ TInitial opening time(according to the cold volume size of actual model), detect indoor evaporator reposition of redundant personnel capillary inlet temperature at first, outer long connecting pipe import pipe temperature obtains superheat △ t (△ t be outer quick-witted refrigerant import pipe temperature-indoor quick-witted refrigerant outlet pipe temperature), because trachea, liquid pipe connecting pipe length extension, the middle heat transfer with ambient temperature that appears, the cold volume loss appears, leads to the superheat degree change to this judgement connecting pipe length change.
If △ T is greater than or equal to 1 ℃ and less than 3 ℃, the opening time T of the electromagnetic valve is equal to TInitial opening timeB, rounding the opening time after correction, wherein B is equal to 1.1, the length of the connecting pipe changes slightly under the superheat degree, the opening time of the electromagnetic valve of the standard connecting pipe is directly slightly corrected without causing reliability risk, and if △ T is greater than or equal to 3 ℃, the opening time T of the electromagnetic valve is equal to TInitial opening timeX C, where C represents a correction coefficient, and the opening time after correction is rounded, where C is equal to 0.9, in this condition, the long connecting pipe is long, the heat loss of refrigerant is large, the pressure lag time of system is long, the opening time of electromagnetic valve is short, and it can avoid the over-high load of compressor, and if △ T is less than 1 deg.C, the opening time T of electromagnetic valve is TInitial opening timeX A, where A represents a correction factor, the opening time after correction is rounded, where A equals 1.0, in which case the superheat is low and the solenoid valve opening time is extended, avoiding the occurrence of suction superheatAnd the risk of longer establishing time is solved, wherein the limit range of the superheat degree is obtained according to the standard working condition of 35 ℃, and actually, the correction is needed according to the ambient temperature.
After the superheat degree is corrected, the corrected opening time T of the electromagnetic valve is output, and the refrigerant filling amount has a limiting effect on the opening time of the air replenishing electromagnetic valve, so that too much refrigerant filling amount can cause too large load and the phenomenon of pressure mutation can occur. Therefore, the pipe temperature of the condenser of the outdoor unit (the saturation temperature corresponding to the high pressure of the system) is input, the system pressure is judged to correct the filling amount, and if the input condenser temperature is greater than or equal to T1 ℃ and less than T2 ℃, the opening time T of the electromagnetic valve is T ═ TInitial opening timeX a, wherein a represents a correction coefficient, the opening time after correction is rounded, wherein a is equal to 1.2, the refrigerant filling amount is less under the state of lower saturation temperature, the pressure reliability risk is lower, and the opening time of the electromagnetic valve can be relatively prolonged; if the input condenser temperature is greater than or equal to T2 ℃ and less than T3 ℃, the opening time T of the electromagnetic valve is T ═ TInitial opening timeB, wherein b represents a correction coefficient, the opening time after correction is rounded, wherein b is equal to 0.9, the filling amount of the compressor is increased at the temperature, the integral pressure is increased, the opening time of the electromagnetic valve is shorter, and the over-high load of the compressor is avoided; if the input condenser temperature is more than or equal to T3 ℃, the opening time T of the electromagnetic valve is equal to TInitial opening timeAnd x c, wherein c represents a correction coefficient, the opening time after correction is rounded, and c is equal to 0.8, the overall pressure is greatly increased at the temperature, the opening time of the electromagnetic valve is shorter, and the reliability risk is avoided, wherein the temperature limit ranges of t1, t2 and t3 are standard values obtained under various working conditions, actually, correction is required according to the environmental temperature, standard connecting pipe values are measured at different environmental temperatures and input into a controller for intelligent judgment, and in the use stage of a subsequent user, all the startup stages operate according to the opening time of the air replenishing electromagnetic valve after correction.
After the air conditioner is installed, the air conditioner enters an intelligent debugging stage, the temperature of the long connecting pipe at the outlet of the inner machine and the temperature of the inlet of the long connecting pipe at the outer machine are input, the superheat degree of a refrigerant of the connecting pipe is calculated, the superheat degree is compared with a standard value, the length of the connecting pipe is judged, and the opening time of the air supplementing electromagnetic valve is corrected; meanwhile, the temperature of a temperature sensing bulb of a condenser of an air conditioner outdoor unit is input in real time (corresponding to high pressure to obtain saturation temperature, and the high pressure of a detection system is simulated), the opening time of the electromagnetic valve is corrected by comparing the temperature with the temperature of a standard connecting pipe, and the corrected value is different through the length of the connecting pipe and the refrigerant filling amount to obtain actual reasonable data so as to ensure that the reliability risk caused by overhigh load can not occur in the operation process of the compressor. Meanwhile, the opening time of the electromagnetic valve is delayed as much as possible, the exhaust temperature and the system pressure of the whole system are guaranteed to be established, and the system stability in the starting process is guaranteed. The problem of overlarge load in the opening process of the electromagnetic valve caused by the length of the connecting pipe and the filling amount can be considered simultaneously through the correction. The air conditioner is enabled to intelligently correct the opening time of the air supply solenoid valve under the length of each connecting pipe, the stability of the air conditioner in the operation process is improved, the situation of pressure sudden change does not occur in the opening process of the air supply solenoid valve, the reliability of the compressor in the operation process is guaranteed, the opening time of the air supply solenoid valve is intelligently corrected under the pouring amount of various refrigerants of the air conditioner, the phenomenon that the compressor is overloaded due to the pressure sudden change is avoided, and the reliability of the air conditioner is guaranteed.
The control method of the electromagnetic valve of the air conditioner obtains the temperature of the refrigerant inlet pipe of the air conditioner outdoor unit and the temperature of the refrigerant outlet pipe of the air conditioner indoor unit, and then calculates the superheat degree of the refrigerant according to the temperature of the inlet pipe and the temperature of the outlet pipe, because the connecting pipe of the air conditioner air pipe and the liquid pipe is lengthened, the heat exchange with the ambient temperature occurs in the middle of the connecting pipe, and the loss of cold energy occurs, so the superheat degree changes, the difference of the superheat degree of the refrigerant can reflect the length change of the connecting pipe, the comparison result of the superheat degree of the refrigerant and the preset superheat degree threshold value can reflect the size relation between the length of the connecting pipe and the length of the standard connecting pipe, the initial opening time of the electromagnetic valve is corrected according to the comparison result of the superheat degree of the refrigerant and the preset superheat degree threshold value, the system stability when the solenoid valve is opened is improved, and the use reliability is improved.
In one embodiment, the air conditioner solenoid valve control device comprises an inlet and outlet temperature acquisition module, a refrigerant superheat degree acquisition module, a correction module and an operation control module, wherein the inlet and outlet temperature acquisition module is used for acquiring the temperature of a refrigerant inlet pipe of an air conditioner outdoor unit and the temperature of a refrigerant outlet pipe of the air conditioner indoor unit, the refrigerant superheat degree acquisition module is used for calculating the refrigerant superheat degree according to the temperature of the inlet pipe and the temperature of the outlet pipe, the correction module is used for correcting the initial opening time of a solenoid valve according to the comparison result of the refrigerant superheat degree and a preset superheat degree threshold value to obtain the corrected opening time of the solenoid valve, and the operation control module is used for obtaining the target opening time according to the corrected opening time of the solenoid valve and controlling.
In one embodiment, the air conditioner solenoid valve control device further comprises a saturation temperature obtaining module and a re-correcting module, the saturation temperature obtaining module is used for correcting the initial opening time of the solenoid valve according to the comparison result of the superheat degree of the refrigerant and the preset superheat degree threshold value by the correcting module, after the corrected opening time of the solenoid valve is obtained, the operation control module obtains a target opening time according to the corrected opening time of the solenoid valve, before the solenoid valve is controlled to be opened according to the target opening time, the high-pressure corresponding saturation temperature of the air conditioning system is obtained, the re-correcting module is used for obtaining the target opening time according to the corrected opening time of the solenoid valve after the saturation temperature obtaining module obtains the high-pressure corresponding saturation temperature of the air conditioning system, before the solenoid valve is controlled to be opened according to the target opening time, the opening time of the solenoid valve is corrected according to the comparison result of the, and obtaining the corrected opening time of the electromagnetic valve.
For specific limitations of the air conditioner solenoid valve control device, reference may be made to the above limitations of the air conditioner solenoid valve control method, which are not described herein again. All or part of each module in the air conditioner electromagnetic valve control device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
The air conditioner electromagnetic valve control device obtains the temperature of a refrigerant inlet pipe of an air conditioner outdoor unit and the temperature of a refrigerant outlet pipe of an air conditioner indoor unit, and then calculates the superheat degree of the refrigerant according to the temperature of the inlet pipe and the temperature of the outlet pipe, because the lengths of the air conditioner air pipe and the liquid pipe connecting pipe are lengthened, heat exchange with the ambient temperature occurs in the middle of the connecting pipe, and the change of the superheat degree is caused due to the loss of cold energy, so that the change of the length of the connecting pipe can be reflected by the difference of the superheat degree of the refrigerant, the comparison result of the superheat degree of the refrigerant and the preset superheat degree threshold value can reflect the size relation between the length of the connecting pipe and the length of a standard connecting pipe, the initial opening time of the electromagnetic valve is corrected according to the comparison result of the superheat degree of the refrigerant and the preset, the system stability when the solenoid valve is opened is improved, and the use reliability is improved.
In one embodiment, the air conditioner electromagnetic valve control equipment comprises a temperature detector and a controller, wherein the temperature detector is connected with the controller, the temperature detector is used for detecting the temperature of an air conditioner external unit refrigerant inlet pipe and the temperature of an air conditioner internal unit refrigerant outlet pipe and sending the temperature to the controller, and the controller is used for executing the method to control the air conditioner electromagnetic valve.
The air conditioner electromagnetic valve control equipment obtains the temperature of a refrigerant inlet pipe of an air conditioner outdoor unit and the temperature of a refrigerant outlet pipe of an air conditioner indoor unit, and then calculates the superheat degree of the refrigerant according to the temperature of the inlet pipe and the temperature of the outlet pipe, because the lengths of the air conditioner air pipe and the liquid pipe connecting pipe are lengthened, heat exchange with the ambient temperature occurs in the middle of the connecting pipe, and the change of the superheat degree is caused due to the loss of cold energy, so that the change of the length of the connecting pipe can be reflected by the difference of the superheat degree of the refrigerant, the comparison result of the superheat degree of the refrigerant and the preset superheat degree threshold value can reflect the size relation between the length of the connecting pipe and the length of a standard connecting pipe, the initial opening time of the electromagnetic valve is corrected according to the comparison result of the superheat degree of the refrigerant and the preset, the system stability when the solenoid valve is opened is improved, and the use reliability is improved.
In one embodiment, a solenoid valve system is provided, which comprises a solenoid valve and the air conditioner solenoid valve control device. Specifically, the solenoid valve may be a bipolar compression make-up solenoid valve.
The electromagnetic valve system obtains the temperature of a refrigerant inlet pipe of an air conditioner outdoor unit and the temperature of a refrigerant outlet pipe of an air conditioner indoor unit, and then calculates the superheat degree of the refrigerant according to the temperature of the inlet pipe and the temperature of the outlet pipe, because the connecting pipes of the air conditioner air pipe and the liquid pipe are lengthened, the heat exchange with the ambient temperature occurs in the middle of the connecting pipes, and the change of the superheat degree is caused due to the loss of cold energy, so the change of the length of the connecting pipes can be reflected by the difference of the superheat degree of the refrigerant, the comparison result of the superheat degree of the refrigerant and the preset superheat degree threshold value can reflect the size relation between the length of the connecting pipes and the length of a standard connecting pipe, the initial opening time of the electromagnetic valve is corrected according to the comparison result of the superheat degree of the refrigerant and the preset superheat degree, the system stability when the solenoid valve is opened is improved, and the use reliability is improved.
In one embodiment, an air conditioner is provided, comprising the solenoid valve system described above.
The air conditioner obtains the temperature of a refrigerant inlet pipe of an air conditioner outdoor unit and the temperature of a refrigerant outlet pipe of an air conditioner indoor unit, and then calculates the superheat degree of the refrigerant according to the temperature of the inlet pipe and the temperature of the outlet pipe, because the lengths of the air conditioner air pipe and the liquid pipe connecting pipe are lengthened, heat exchange with the ambient temperature occurs in the middle of the connecting pipe, and the change of the superheat degree is caused due to the loss of cold energy, so that the change of the length of the connecting pipe can be reflected by the difference of the superheat degree of the refrigerant, the comparison result of the superheat degree of the refrigerant and the preset superheat degree threshold value can reflect the size relation between the length of the connecting pipe and the length of a standard connecting pipe, the initial opening time of the electromagnetic valve is corrected according to the comparison result of the superheat degree of the refrigerant and the preset superheat degree threshold value, the corrected opening time of, the use reliability is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. A control method of an air conditioner electromagnetic valve is characterized by comprising the following steps:
acquiring the temperature of a refrigerant inlet pipe of an air conditioner external unit and the temperature of a refrigerant outlet pipe of the air conditioner internal unit;
calculating the superheat degree of a refrigerant according to the temperature of the inlet pipe and the temperature of the outlet pipe;
correcting the initial opening time of the electromagnetic valve according to the comparison result of the refrigerant superheat degree and a preset superheat degree threshold value to obtain the corrected opening time of the electromagnetic valve;
and obtaining target opening time according to the corrected opening time of the electromagnetic valve, and controlling the electromagnetic valve to be opened according to the target opening time.
2. An air conditioner electromagnetic valve control method as claimed in claim 1, wherein the step of correcting the initial opening time of the electromagnetic valve according to the comparison result of the refrigerant superheat degree and a preset superheat degree threshold value to obtain the corrected opening time of the electromagnetic valve comprises the following steps:
correcting the initial opening time of the electromagnetic valve according to the comparison result of the refrigerant superheat degree and a preset superheat degree threshold value to obtain first correction time;
acquiring the high-pressure corresponding saturation temperature of an air conditioning system;
and correcting the first correction time according to the comparison result of the high-pressure corresponding saturation temperature of the air conditioning system and a preset temperature threshold value to obtain the corrected opening time of the electromagnetic valve.
3. An air conditioner electromagnetic valve control method as claimed in claim 2, wherein the preset superheat threshold includes a preset superheat upper limit and a preset superheat lower limit, and the correcting the initial opening time of the electromagnetic valve according to the comparison result of the refrigerant superheat and the preset superheat threshold to obtain a first correction time comprises:
when the superheat degree of the refrigerant is larger than or equal to the preset superheat degree upper limit value, taking the time smaller than the initial opening time of the electromagnetic valve as first correction time;
when the superheat degree of the refrigerant is smaller than the preset superheat degree lower limit value, taking the initial opening time of the electromagnetic valve as first correction time;
and when the refrigerant superheat degree is greater than or equal to the preset superheat degree lower limit value and smaller than the preset superheat degree upper limit value, taking the time of the difference value of the initial opening time of the electromagnetic valve within an allowable error range as first correction time.
4. An air conditioner solenoid valve control method as claimed in claim 2, wherein the temperature threshold includes a first temperature threshold, a second temperature threshold and a third temperature threshold, the first temperature threshold is smaller than the second temperature threshold, the second temperature threshold is smaller than the third temperature threshold, and the correcting the first correcting time according to the comparison result of the saturation temperature corresponding to the high pressure of the air conditioning system and the preset temperature threshold to obtain the corrected solenoid valve opening time comprises:
when the corresponding saturation temperature of the high pressure of the air conditioning system is greater than or equal to the third temperature threshold, taking the time less than the first correction time as the corrected opening time of the electromagnetic valve;
when the corresponding saturation temperature of the high pressure of the air conditioning system is greater than or equal to the first temperature threshold and is less than the second temperature threshold, taking the time greater than the first correction time as the corrected opening time of the electromagnetic valve;
and when the corresponding saturation temperature of the high pressure of the air conditioning system is greater than or equal to the second temperature threshold and smaller than the third temperature threshold, taking the time of which the difference value with the first correction time is within the allowable error range as the corrected opening time of the electromagnetic valve.
5. The air conditioning solenoid valve control method according to claim 2, wherein the air conditioning system high pressure corresponding saturation temperature includes an air conditioning outdoor unit condenser tube temperature and an air conditioning evaporator tube temperature, and the obtaining the air conditioning system high pressure corresponding saturation temperature includes:
acquiring a current working mode of the air conditioner;
when the air conditioner works in a refrigeration mode, acquiring the tube temperature of a condenser of the air conditioner external unit as the high-pressure corresponding saturation temperature of the air conditioning system;
and when the air conditioner works in the heating mode, acquiring the tube temperature of the air conditioner evaporator as the high-pressure corresponding saturation temperature of the air conditioning system.
6. An air conditioner electromagnetic valve control method as claimed in claim 1, wherein the calculating of refrigerant superheat based on the inlet pipe temperature and the outlet pipe temperature comprises:
and calculating a difference value between the temperature of the inlet pipe and the temperature of the outlet pipe, and taking the difference value as the superheat degree of the refrigerant.
7. An air conditioner electromagnetic valve control method according to claim 1, wherein the obtaining of the target opening time according to the corrected opening time of the electromagnetic valve and the controlling of the opening of the electromagnetic valve according to the target opening time comprise:
and integrating the corrected opening time of the electromagnetic valve to obtain target opening time, and controlling the electromagnetic valve to be opened according to the target opening time.
8. An air conditioner electromagnetic valve control method as claimed in claim 1, wherein the obtaining of the temperature of the refrigerant inlet pipe of the air conditioner external unit and the temperature of the refrigerant outlet pipe of the air conditioner internal unit comprises:
sending a temperature detection control signal to a temperature detector, and receiving the temperature of an air conditioner external unit refrigerant inlet pipe and the temperature of an air conditioner internal unit refrigerant outlet pipe returned by the temperature detector; the temperature detection control signal is used for controlling the temperature detector to detect the temperature of a refrigerant inlet pipe of the air conditioner external unit and the temperature of a refrigerant outlet pipe of the air conditioner internal unit.
9. An air conditioner solenoid valve control device, characterized by comprising:
the inlet and outlet temperature acquisition module is used for acquiring the temperature of a refrigerant inlet pipe of an air conditioner external unit and the temperature of a refrigerant outlet pipe of the air conditioner internal unit;
the refrigerant superheat degree acquisition module is used for calculating the refrigerant superheat degree according to the temperature of the inlet pipe and the temperature of the outlet pipe;
the correction module is used for correcting the initial opening time of the electromagnetic valve according to the comparison result of the refrigerant superheat degree and a preset superheat degree threshold value to obtain the corrected opening time of the electromagnetic valve;
and the operation control module is used for obtaining target opening time according to the corrected opening time of the electromagnetic valve and controlling the electromagnetic valve to be opened according to the target opening time.
10. The air conditioner electromagnetic valve control equipment is characterized by comprising a temperature detector and a controller, wherein the temperature detector is connected with the controller, the temperature detector is used for detecting the temperature of an inlet pipe of an air conditioner external unit refrigerant and the temperature of an outlet pipe of the air conditioner internal unit refrigerant and sending the temperatures to the controller, and the controller is used for executing the method of any one of claims 1 to 8 to control the air conditioner electromagnetic valve.
11. A solenoid valve system comprising a solenoid valve and the air conditioning solenoid valve control apparatus according to claim 10.
12. An air conditioner characterized by comprising the electromagnetic valve system according to claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140047.3A CN111306731B (en) | 2020-03-03 | 2020-03-03 | Air conditioner electromagnetic valve control method, device and equipment, electromagnetic valve system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140047.3A CN111306731B (en) | 2020-03-03 | 2020-03-03 | Air conditioner electromagnetic valve control method, device and equipment, electromagnetic valve system and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111306731A true CN111306731A (en) | 2020-06-19 |
| CN111306731B CN111306731B (en) | 2021-03-23 |
Family
ID=71151975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010140047.3A Active CN111306731B (en) | 2020-03-03 | 2020-03-03 | Air conditioner electromagnetic valve control method, device and equipment, electromagnetic valve system and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111306731B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032921A (en) * | 2020-08-06 | 2020-12-04 | 广东Tcl智能暖通设备有限公司 | Air conditioner control method, air conditioner and storage medium |
| CN112797603A (en) * | 2020-12-28 | 2021-05-14 | 珠海格力电器股份有限公司 | Air conditioner, starting control method and device thereof, storage medium and processor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0849929A (en) * | 1994-08-09 | 1996-02-20 | Yanmar Diesel Engine Co Ltd | Multiroom air-conditioning heat pump system |
| JPH10160190A (en) * | 1996-12-02 | 1998-06-19 | Daikin Ind Ltd | Air conditioner |
| CN103375935A (en) * | 2012-04-25 | 2013-10-30 | 珠海格力电器股份有限公司 | Two-stage compression circulation system and control method for air conditioner with same |
| CN106931546A (en) * | 2017-03-27 | 2017-07-07 | 广东美的制冷设备有限公司 | A kind of heat pump sprays enthalpy system and its control method, air-conditioner |
| CN110440490A (en) * | 2018-05-02 | 2019-11-12 | 广东Tcl智能暖通设备有限公司 | Gas-supplying enthalpy-increasing control method, storage medium and the control equipment of enthalpy-increasing compressor |
| CN110617206A (en) * | 2019-09-16 | 2019-12-27 | 珠海格力电器股份有限公司 | Exhaust control method and device for two-stage compressor, controller and air conditioner |
-
2020
- 2020-03-03 CN CN202010140047.3A patent/CN111306731B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0849929A (en) * | 1994-08-09 | 1996-02-20 | Yanmar Diesel Engine Co Ltd | Multiroom air-conditioning heat pump system |
| JPH10160190A (en) * | 1996-12-02 | 1998-06-19 | Daikin Ind Ltd | Air conditioner |
| CN103375935A (en) * | 2012-04-25 | 2013-10-30 | 珠海格力电器股份有限公司 | Two-stage compression circulation system and control method for air conditioner with same |
| CN106931546A (en) * | 2017-03-27 | 2017-07-07 | 广东美的制冷设备有限公司 | A kind of heat pump sprays enthalpy system and its control method, air-conditioner |
| CN110440490A (en) * | 2018-05-02 | 2019-11-12 | 广东Tcl智能暖通设备有限公司 | Gas-supplying enthalpy-increasing control method, storage medium and the control equipment of enthalpy-increasing compressor |
| CN110617206A (en) * | 2019-09-16 | 2019-12-27 | 珠海格力电器股份有限公司 | Exhaust control method and device for two-stage compressor, controller and air conditioner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032921A (en) * | 2020-08-06 | 2020-12-04 | 广东Tcl智能暖通设备有限公司 | Air conditioner control method, air conditioner and storage medium |
| CN112032921B (en) * | 2020-08-06 | 2022-01-04 | 广东Tcl智能暖通设备有限公司 | Air conditioner control method, air conditioner and storage medium |
| CN112797603A (en) * | 2020-12-28 | 2021-05-14 | 珠海格力电器股份有限公司 | Air conditioner, starting control method and device thereof, storage medium and processor |
| CN112797603B (en) * | 2020-12-28 | 2022-02-22 | 珠海格力电器股份有限公司 | Air conditioner, starting control method and device thereof, storage medium and processor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111306731B (en) | 2021-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111023435B (en) | Control method and system for expansion valve of air conditioner and air conditioner | |
| US11131490B2 (en) | Refrigeration device having condenser unit connected to compressor unit with on-site pipe interposed therebetween and remote from the compressor unit | |
| CN109140826B (en) | Enthalpy increasing heat pump, its tonifying Qi amount control method, system, computer equipment and storage medium | |
| US6745583B2 (en) | Defrosting apparatus of air conditioner and method thereof | |
| US11378316B2 (en) | Diagnostic mode of operation to detect refrigerant leaks in a refrigeration circuit | |
| CN109373497B (en) | Refrigerant quantity adjusting method, device and system of temperature adjusting equipment and air conditioner | |
| CN105864984A (en) | Adjusting method and device for indoor unit electronic expansion valve | |
| US11346570B2 (en) | Refrigerant leakage determination system and refrigeration cycle apparatus | |
| CN111306731B (en) | Air conditioner electromagnetic valve control method, device and equipment, electromagnetic valve system and air conditioner | |
| CN110398040B (en) | Refrigeration adjusting method and device and air conditioner | |
| CN109373501A (en) | A kind of control method of electric expansion valve, device and multi-line system | |
| GB2528213A (en) | Heat pump device and air-conditioning system | |
| CN111442577A (en) | Air conditioner, low-temperature refrigeration control method thereof and computer readable storage medium | |
| CN112665112B (en) | Air conditioner, control method thereof and readable storage medium | |
| CN109855251A (en) | Discharge superheat modification method, device, computer product and the air-conditioning of air-conditioning | |
| CN104006592A (en) | Frequency adjustment method and frequency adjustment device for variable-frequency compressor in heat pump system | |
| CN110230900B (en) | Control method, control system and storage medium for heat pump system | |
| CN111998500A (en) | Control method and device for outdoor fan of air conditioner refrigeration and air conditioner | |
| CN115046336A (en) | Control method and device of electronic expansion valve, electronic equipment and storage medium | |
| JP7199554B2 (en) | Outdoor unit and refrigeration cycle equipment | |
| CN111397104A (en) | Control method and device of air conditioning system, control equipment, medium and air conditioning system | |
| WO2023206804A1 (en) | Air conditioning system and method for calculating operation parameters of indoor unit thereof | |
| JP2002061979A (en) | Cooling and heating system | |
| US20240068723A1 (en) | Refrigerant leakage detection system | |
| EP3988871A1 (en) | Outdoor unit, refrigeration cycle device, and refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |