CN115013940B - Method and device for detecting installation of electronic expansion valve, air conditioner and medium - Google Patents
Method and device for detecting installation of electronic expansion valve, air conditioner and medium Download PDFInfo
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- CN115013940B CN115013940B CN202210671260.6A CN202210671260A CN115013940B CN 115013940 B CN115013940 B CN 115013940B CN 202210671260 A CN202210671260 A CN 202210671260A CN 115013940 B CN115013940 B CN 115013940B
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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
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
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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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a method and a device for detecting the installation of an electronic expansion valve, an air conditioner and a medium, wherein the method for detecting the installation of the electronic expansion valve comprises the following steps: when the electronic expansion valve is installed in the air conditioning system; and detecting the high-low pressure ratio of the electronic expansion valve, and judging whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system according to the high-low pressure ratio so as to determine whether the installation direction of the electronic expansion valve is correct. The invention solves the problem of how to detect that the actual valve opening direction of the electronic expansion valve is consistent with the preset direction of the system.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an installation detection method and device of an electronic expansion valve, an air conditioner and a medium.
Background
With the development of the air conditioner, after the control command of the power generation sub expansion valve is powered on and off, the compressor is started, the high pressure and the low pressure are balanced slowly, and the system runs normally. However, when the electronic expansion valve is installed and debugged and the electronic expansion valve is replaced after sale, the electronic expansion valve cannot be effectively controlled due to the fact that the actual valve opening direction of the new electronic expansion valve is different from the system software setting, and if the software control valve opening direction is opposite to the actual valve opening direction of the electronic expansion valve, the air conditioner is stopped or damaged.
Therefore, how to detect that the actual valve opening direction of the electronic expansion valve is consistent with the preset direction of the system becomes a problem to be solved.
Disclosure of Invention
The invention solves the problem of how to detect that the actual valve opening direction of the electronic expansion valve is consistent with the preset direction of the system.
In order to solve the above problems, the present invention provides a method for detecting the installation of an electronic expansion valve, comprising: when the electronic expansion valve is installed in the air conditioning system; and detecting the high-low pressure ratio of the electronic expansion valve, and judging whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system according to the high-low pressure ratio so as to determine whether the installation direction of the electronic expansion valve is correct.
Compared with the prior art, the scheme can achieve the following effects: in a specific embodiment, when the electronic expansion valve is normally opened, that is, when the preset direction of the air conditioning system is consistent with the actual valve opening direction of the electronic expansion valve, the low pressure in the air conditioning system will be balanced slowly, and the high-low pressure ratio will be reduced gradually until balanced; however, when the preset direction of the air conditioning system is opposite to the actual valve opening direction of the electronic expansion valve, that is, the air conditioning system issues a valve opening instruction, but the electronic expansion valve actually performs a valve closing operation, at this time, refrigerant cannot flow back to the compressor in the air conditioning system, so that the high-low pressure ratio is too high, and therefore, by detecting the value of the high-low pressure ratio after the electronic expansion valve is started, whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system can be judged, so that adjustment is correspondingly performed.
In one embodiment of the present invention, when an electronic expansion valve is installed in an air conditioning system, it includes: judging whether the air conditioning system is operated after the primary power-on; if so, judging whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system according to the high-low pressure ratio so as to determine whether the installation direction of the electronic expansion valve is correct.
Compared with the prior art, the effect that this scheme can reach: when the air conditioning system is electrified for the first time, the electronic expansion valve is also newly installed, and the installation detection method in the embodiment can be directly executed at the moment, so that the electronic expansion valve is ensured not to be wrongly started in the subsequent second operation of the air conditioning system.
In one embodiment of the present invention, determining whether an actual valve opening direction of an electronic expansion valve is the same as a preset direction of an air conditioning system according to a high-low pressure ratio includes: controlling the electronic expansion valve to act according to a first target control mode, and detecting and judging whether the high-low pressure ratio meets a first condition; and if not, executing a second target control mode.
Compared with the prior art, the effect that this scheme can reach: the electronic expansion valve can be ensured to run in a certain safety range, so that the electronic expansion valve can be prevented from being damaged when the high-low pressure ratio of the electronic expansion valve can be detected.
In one embodiment of the present invention, if the high-low pressure ratio is determined to satisfy the first condition, the electronic expansion valve is controlled to operate according to the third target control mode; detecting the high-low pressure ratio after passing through the third target control mode, and judging whether the high-low pressure ratio meets a second condition at the moment; and if not, executing a fourth target control mode.
Compared with the prior art, the effect that this scheme can reach: the electronic expansion valve can be ensured to run in a certain safety range, so that the electronic expansion valve can be prevented from being damaged when the high-low pressure ratio of the electronic expansion valve can be detected.
In one embodiment of the present invention, if it is determined that the high-low pressure ratio satisfies the second condition, the third target control mode is stopped and an error is reported.
Compared with the prior art, the effect that this scheme can reach: it can be explained that the electronic expansion valve is malfunctioning, or the control mode in this embodiment is not compatible with the electronic expansion valve in this embodiment, so that the electronic expansion valve is wrongly reported, and the machine is stopped for detection.
In one embodiment of the invention, the first target control mode comprises: controlling the step number of the electronic expansion valve to open a first preset value, and continuously running for a first set time; and/or the second target control mode comprises: controlling the electronic expansion valve Guan Fadi to step numbers of two preset values and continuously operating for a second preset time; and/or, the third target control mode includes: controlling the step number of a third preset value of opening the electronic expansion valve, and continuously running for a third set time; and/or, the fourth target control mode includes: the electronic expansion valve Guan Fadi is controlled to step for four preset values and continuously operates for a fourth preset time.
Compared with the prior art, the effect that this scheme can reach: in a specific embodiment, a plurality of target control modes can more accurately execute the installation detection method of the embodiment, so that the result of the installation detection method of the embodiment is more accurate.
In one embodiment of the invention, the first condition comprises: the high-low pressure ratio is larger than or equal to a fifth preset value; and/or, the second condition comprises: the high-low pressure ratio is greater than or equal to a sixth preset value.
Compared with the prior art, the effect that this scheme can reach: in a specific embodiment, the fifth preset value in the first condition and the sixth preset value in the second condition are closer to the limit value of the high-low pressure ratio of the electronic expansion valve, so that the installation detection method in the embodiment is more accurate and effective.
In one embodiment of the present invention, there is provided a detection apparatus for an air conditioner, including: the detection module is used for detecting the high-low pressure ratio of the electronic expansion valve; the judging module is used for judging whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system.
Compared with the prior art, the effect that this scheme can reach: the detection device can realize the steps of the control method according to any embodiment of the present invention, so that the detection device has the beneficial effects of any embodiment described above, and will not be described herein.
In one embodiment of the present invention, an air conditioner is provided, which is capable of implementing the steps of the control method of any one of the above embodiments.
Compared with the prior art, the effect that this scheme can reach: the air conditioner in this embodiment can implement the steps of any control method described above, so the air conditioner in this embodiment has the beneficial effects of any one of the above embodiments, and will not be described herein.
In one embodiment of the present invention, there is provided a readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the steps of the control method as in any of the above embodiments.
Compared with the prior art, the effect that this scheme can reach: the readable storage medium is in the steps of implementing the control method according to any embodiment of the present invention, so that it has all the advantages of the method according to any embodiment of the present invention, and will not be described herein.
Drawings
FIG. 1 is a flow chart of steps of a method for detecting the installation of an electronic expansion valve in some embodiments;
fig. 2 is a schematic structural diagram of the detection device.
Reference numerals illustrate:
100. a detection device; 101. a detection module; 102. and a judging module.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments.
Embodiment one:
the embodiment provides a method for detecting the installation of an electronic expansion valve, which comprises the following steps: when the electronic expansion valve is installed in the air conditioning system; and detecting the high-low pressure ratio of the electronic expansion valve, and judging whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system according to the high-low pressure ratio so as to determine whether the installation direction of the electronic expansion valve is correct.
In this embodiment, the preset direction of the air conditioning system refers to an instruction of how much the air conditioning system opens the valve or how much the valve closes the valve, that is, how much the valve opens is in one direction, and the opening of the corresponding electronic expansion valve increases; the opening degree of the closing valve is one direction, and the opening degree of the corresponding electronic expansion valve is reduced. Correspondingly, when the command is issued to the electronic expansion valve, the electronic expansion valve correspondingly performs actual valve opening or closing actions, and once the actual valve opening direction of the electronic expansion valve is opposite to the preset direction of the air conditioning system, the preset direction of the air conditioning system is the direction for increasing the opening degree of the expansion valve, but the electronic expansion valve actually performs valve closing actions, and at the moment, the opening degree of the electronic expansion valve is reduced, so that the air conditioner is damaged.
Specifically, the electronic expansion valve is controlled by a stepping motor by adjusting the power-on sequence, and the valve opening direction indicates the direction in which the opening degree of the electronic expansion valve increases, and the valve closing direction indicates the direction in which the opening degree of the electronic expansion valve decreases. The installation detection method in this embodiment is particularly suitable for an electronic expansion valve controlled by a four-phase eight-beat stepper motor, where the four-phase eight-beat stepper motor controlled electronic expansion valve includes two power-on sequences, the first power-on sequence for opening the electronic expansion valve is defined as a first program, the second power-on sequence for opening the electronic expansion valve is defined as a second program, the air conditioning system performs the power-on sequence of the first program through the stepper motor, the actually corresponding electronic expansion valve may perform the valve opening operation or the valve closing operation, and similarly, the air conditioning system performs the power-on sequence of the second program through the stepper motor, the actually corresponding electronic expansion valve may perform the valve opening operation or the valve closing operation, so that the actual valve opening direction of the electronic expansion valve is different from the preset direction of the system.
When the electronic expansion valve is normally opened, namely, the preset direction of the air conditioning system is consistent with the actual valve opening direction of the electronic expansion valve, the low-pressure in the air conditioning system is balanced slowly, and the high-low pressure ratio is reduced gradually until balanced; however, when the preset direction of the air conditioning system is opposite to the actual valve opening direction of the electronic expansion valve, that is, the air conditioning system issues a valve opening instruction, but the electronic expansion valve actually performs a valve closing operation, at this time, refrigerant cannot flow back to the compressor in the air conditioning system, so that the high-low pressure ratio is too high, therefore, by detecting the value of the high-low pressure ratio after the electronic expansion valve is started, whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system can be judged, and whether the preset direction of the air conditioning system needs to be adjusted is determined, so that the electronic expansion valve can correspondingly realize the valve opening operation when the air conditioning system issues the valve opening instruction.
The installation detection method is suitable for detection required when the electronic expansion valve is installed to an air conditioning system, and comprises the steps of debugging the electronic expansion valve and replacing the electronic expansion valve.
Embodiment two:
in this embodiment, when the electronic expansion valve is installed in the air conditioning system, it includes: judging whether the air conditioning system is operated after the primary power-on; if so, judging whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system according to the high-low pressure ratio so as to determine whether the installation direction of the electronic expansion valve is correct.
In this embodiment, it is specifically described that when the air conditioning system is first powered on, detection and judgment need to be performed on the actual valve opening direction of the electronic expansion valve and the preset direction of the air conditioning system.
When the air conditioning system is electrified for the first time, the electronic expansion valve is also newly installed, and the installation detection method in the embodiment can be directly executed at the moment, so that the electronic expansion valve is ensured not to be wrongly started in the subsequent second operation of the air conditioning system.
When it is determined that the air conditioning system is not in the primary power-on operation, the air conditioning system is indicated to be in the secondary power-on operation or in the multiple power-on operations, and the air conditioning system can be operated normally, the installation detection method in the embodiment is not required.
Embodiment III:
judging whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system according to the high-low pressure ratio, comprising: controlling the electronic expansion valve to act according to a first target control mode, and detecting and judging whether the high-low pressure ratio meets a first condition; and if not, executing a second target control mode.
In this embodiment, in combination with the first embodiment, the first target control mode corresponds to the power-on sequence of the first program, and the first program executes an instruction for opening the expansion valve, and at this time, the electronic expansion valve may actually perform the valve opening operation or the valve closing operation.
The first condition is specifically that the ratio of high pressure to low pressure is greater than or equal to a fifth preset value, wherein the fifth preset value is a factory default value of the air conditioning system, and the fifth preset value can be adjusted and set according to actual use conditions. Specifically, in this embodiment, the high-low pressure ratio does not exceed 8 when the air conditioning system is normally operated, and therefore, in this embodiment, the fifth preset value is preferably 8.
Specifically, the first target control mode is a power-on sequence corresponding to the first program, the number of steps of the first preset value of the electronic expansion valve in actual valve opening or valve closing is controlled, the electronic expansion valve continuously operates for a first set time, the first preset value and the first set time are factory default values of the air conditioning system, and the electronic expansion valve can be adjusted and set according to actual use conditions. The first preset value is preferably 600 in the present embodiment, and the first setting time is preferably 30 seconds, so that the electronic expansion valve can be ensured to operate within a certain safety range, and the electronic expansion valve can be prevented from being damaged while the high-low pressure ratio of the electronic expansion valve can be detected.
After the first target control mode acts, detecting the high-low pressure ratio of the electronic expansion valve at the moment, setting the detected high-low pressure ratio as a first pressure ratio, judging whether the first pressure ratio meets a first condition, if the first pressure ratio does not meet the first condition, namely, the first pressure ratio is lower than a fifth preset value, indicating that the air conditioning system operates normally, and at the moment, the power-on sequence of a first program corresponding to the first target control mode can realize the actual valve opening of the electronic expansion valve, namely, indicating that the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system, and executing the action of a second target control mode by the electronic expansion valve.
Specifically, the second target control mode is to record the original program of the first program being the actual valve opening direction of the electronic expansion valve, and simultaneously control the electronic expansion valve Guan Fadi to step by two preset values, and continuously run for a second preset time, and then restart the electronic expansion valve. The second preset value and the second set time are factory default values of the air conditioning system, and can be adjusted and set according to actual use conditions. The second preset value is preferably 600 in the present embodiment, and the second set time is preferably 15 seconds.
Embodiment four:
in this embodiment, if the high-low pressure ratio is determined to satisfy the first condition, the electronic expansion valve is controlled to operate according to the third target control mode; detecting the high-low pressure ratio after passing through the third target control mode, and judging whether the high-low pressure ratio meets a second condition at the moment; and if not, executing a fourth target control mode.
In this embodiment, in combination with the third embodiment, the operation that the electronic expansion valve needs to perform next when the high-low pressure ratio of the electronic expansion valve satisfies the first condition is specifically described.
When the high-low pressure ratio of the electronic expansion valve meets a first condition, the first pressure ratio is larger than or equal to a fifth preset value, the air conditioning system is abnormal in operation, the actual valve opening of the electronic expansion valve cannot be achieved according to the power-on sequence of the first program corresponding to the first target control mode, namely the actual valve opening direction of the electronic expansion valve is opposite to the preset direction of the air conditioning system, and the electronic expansion valve executes the action of the third target control mode.
Specifically, in combination with the first embodiment, the third target control mode is a power-on sequence corresponding to the second program, and controls the electronic expansion valve to be opened or closed actually by a third preset value, the electronic expansion valve continuously operates for a third set time, and the third preset value and the third set time are factory default values of the air conditioning system and can be adjusted and set according to actual use conditions. The third preset value is preferably 600 in the present embodiment, and the third setting time is preferably 30 seconds, so that the electronic expansion valve can be ensured to operate within a certain safety range, so that the electronic expansion valve is not damaged while the high-low pressure ratio of the electronic expansion valve can be detected.
Then, the high-low pressure ratio of the electronic expansion valve after the operation in the third target control mode is detected and is recorded as a second pressure ratio, and if the second pressure ratio does not satisfy the second condition, the electronic expansion valve executes the fourth target control mode.
The second condition is that the ratio of high-low pressure is greater than or equal to a sixth preset value, wherein the sixth preset value is a factory default value of the air conditioning system, and the sixth preset value can be adjusted and set according to actual use conditions. Specifically, in this embodiment, the high-low pressure ratio does not exceed 8 during normal operation of the air conditioning system, and therefore, in this embodiment, the sixth preset value is preferably 8.
Specifically, whether the second pressure ratio meets the second condition is judged, if the second pressure ratio does not meet the second condition, that is, the second pressure ratio is lower than a sixth preset value, the normal operation of the air conditioning system is indicated at the moment, the actual valve opening of the electronic expansion valve can be realized according to the power-on sequence of the second program corresponding to the second target control mode, that is, the actual valve opening direction of the electronic expansion valve is indicated to be the same as the preset direction of the air conditioning system at the moment.
Specifically, the fourth target control mode is to record the original program of the second program being the actual valve opening direction of the electronic expansion valve, control the electronic expansion valve Guan Fadi by four steps of preset values, continuously run for a fourth preset time, and restart the electronic expansion valve. The fourth preset value and the fourth set time are factory default values of the air conditioning system, and can be adjusted and set according to actual use conditions. The fourth preset value is preferably 600 in the present embodiment, and the fourth set time is preferably 15 seconds.
Fifth embodiment:
in this embodiment, if it is determined that the high-low pressure ratio satisfies the second condition, the third target control mode is stopped and an error is reported.
In this embodiment, specifically, the operation that the electronic expansion valve needs to perform when the second pressure ratio satisfies the second condition is described.
And if the second pressure ratio meets the second condition, the second pressure ratio is larger than or equal to a sixth preset value, and the air conditioning system cannot normally operate at the moment. At this time, the actual valve opening direction of the electronic expansion valve cannot match the first target control mode and the third target control mode, so that it can be explained that the electronic expansion valve fails, or the control mode in the embodiment cannot be compatible with the electronic expansion valve in the embodiment, so that the electronic expansion valve is wrongly reported and stopped for detection.
Example six:
the first target control mode includes: controlling the step number of the electronic expansion valve to open a first preset value, and continuously running for a first set time; and/or the second target control mode comprises: controlling the electronic expansion valve Guan Fadi to step numbers of two preset values and continuously operating for a second preset time; and/or, the third target control mode includes: controlling the step number of a third preset value of opening the electronic expansion valve, and continuously running for a third set time; and/or, the fourth target control mode includes: the electronic expansion valve Guan Fadi is controlled to step for four preset values and continuously operates for a fourth preset time.
In the present embodiment, the actions specifically performed by the first target control mode, the second target control mode, the third target control mode, and the fourth target control mode are specifically described in conjunction with the above embodiments.
Embodiment seven:
the first condition includes: the high-low pressure ratio is larger than or equal to a fifth preset value; and/or, the second condition comprises: the high-low pressure ratio is greater than or equal to a sixth preset value.
In this embodiment, the details of the first condition and the second condition are specifically described in conjunction with the above embodiments.
Specifically, referring to fig. 1 in combination with the sixth embodiment, a specific operation flow of the installation detection method is specifically given. The step S101 starts, that is, the air conditioning system is powered on, then step S201 is entered, whether the air conditioning system is powered on for the first time is detected and judged, if not, step S202 is entered, the air conditioning system is operated according to the original program, at this time, the air conditioning system is not powered on for the first time, the factory debugging stage has passed, and the air conditioning system can be normally operated, the original program is a program capable of adapting the electronic expansion valve to execute the corresponding correct operation, that is, the step motor is operated in the power-on sequence using the original program, so that the actual valve opening and closing direction of the electronic expansion valve can be ensured to be the same as the preset direction.
If yes, that is, if the air conditioning system is in the first power-on operation, step S301 is entered, where the air conditioning system controls the electronic expansion valve to operate in a first target control mode, where the first target control mode includes: the step motor uses the power-up sequence of the first program to enable the electronic expansion valve to open the valve 600 steps, and operate for 30 seconds, then step S401 is entered, whether the high-low pressure ratio of the electronic expansion valve at the moment meets the first condition is detected and judged, the first condition is whether the high-low pressure ratio is more than or equal to 8, in combination with the third embodiment, that is, whether the first pressure ratio is more than or equal to 8, if not, the first pressure ratio is less than 8, step S402 is entered, and the electronic expansion valve operates in the second target control mode, wherein the second target control mode comprises: at this time, the first recording program is the original program, the electronic expansion valve closes the opening of the valve 600 steps and maintains for 15 seconds, and then the electronic expansion valve is restarted, so that the electronic expansion valve works normally.
If yes, it is indicated that the first pressure ratio is greater than or equal to 8, step S501 is performed, and the electronic expansion valve operates in a third target control mode, where the third target control mode includes: the step motor uses the power-up sequence of the second program to enable the electronic expansion valve to open the valve 600 step, and operate for 30 seconds, then step S601 is performed, whether the high-low pressure ratio of the electronic expansion valve at the moment meets the second condition is detected and judged, the second condition is whether the high-low pressure ratio is greater than or equal to 8, in combination with the fourth embodiment, that is, whether the second pressure ratio is greater than or equal to 8, if not, the second pressure ratio is less than 8, then step S602 is performed, and the electronic expansion valve is operated in the fourth target control mode, wherein the fourth target control mode comprises: recording the second program, namely the original program, closing the electronic expansion valve by 600 steps, maintaining for 15 seconds, and restarting the electronic expansion valve, so that the electronic expansion valve works normally.
If yes, the second pressure ratio is greater than or equal to 8, and step S701 is performed, in which the power-on sequence of the first and second step motor is not compatible with the electronic expansion valve, and the shutdown fault is needed and the fault is detected.
Example eight:
provided is a detection device 100 for an air conditioner, including: the detection module 101 is used for detecting the high-low pressure ratio of the electronic expansion valve; the judging module 102, the judging module 102 is configured to judge whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system.
In this embodiment, the electronic expansion valve further includes a control module, where the control module is configured to control the electronic expansion valve to perform an action in a corresponding target control mode.
Since the detection device 100 in this embodiment can implement the installation detection method in the above embodiment, the detection device 100 in this embodiment can implement the beneficial effects of any one of the above embodiments, and will not be described herein.
Example nine:
the present embodiment provides an air conditioner capable of implementing the steps of the control method of any one of the above embodiments.
The air conditioner in this embodiment can implement the steps of the control method in any one of the above embodiments, so the air conditioner in this embodiment has the beneficial effects of any one of the above embodiments, and will not be described herein.
Further, the air conditioner in the present embodiment includes, but is not limited to: wall-mounted air conditioner, central air conditioner and vertical cabinet air conditioner.
Example ten:
the present embodiment provides a readable storage medium on which a program or instructions are stored which, when executed by a processor, implement the steps of the control method as in any of the above embodiments.
The readable storage medium may be any combination of one or more readable medium, and the readable storage medium may be a readable signal medium or a readable storage medium, and the readable storage medium may include, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory, an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.
Claims (5)
1. An installation detection method of an electronic expansion valve is characterized by comprising the following steps:
when the electronic expansion valve is installed in the air conditioning system;
detecting the high-low pressure ratio of the electronic expansion valve, and judging whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system according to the high-low pressure ratio so as to determine whether the installation direction of the electronic expansion valve is correct;
judging whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system according to the high-low pressure ratio, comprising:
controlling the electronic expansion valve to act according to a first target control mode, and detecting and judging whether the high-low pressure ratio meets a first condition;
if not, executing a second target control mode;
if the high-low pressure ratio meets the first condition, controlling the electronic expansion valve to act according to a third target control mode;
detecting the high-low pressure ratio after passing through the third target control mode, and judging whether the high-low pressure ratio meets a second condition at the moment;
if not, executing a fourth target control mode;
if the high-low pressure ratio meets the second condition, stopping the third target control mode and reporting errors;
the first target control mode includes:
controlling the step number of the electronic expansion valve opening first preset value, and continuously running for a first set time; and/or the number of the groups of groups,
the second target control mode includes:
controlling the electronic expansion valve Guan Fadi to perform step numbers of two preset values and continuously operating for a second preset time; and/or the number of the groups of groups,
the third target control mode includes:
controlling the step number of a third preset value of the electronic expansion valve opening, and continuously running for a third set time; and/or the number of the groups of groups,
the fourth target control mode includes:
controlling the electronic expansion valve Guan Fadi to perform step numbers of four preset values and continuously operating for a fourth preset time;
the first condition includes: the high-low pressure ratio is larger than or equal to a fifth preset value; and/or the number of the groups of groups,
the second condition includes: the high-low pressure ratio is greater than or equal to a sixth preset value.
2. The installation detection method according to claim 1, wherein when the electronic expansion valve is installed in the air conditioning system, comprising:
judging whether the air conditioning system is operated after primary power-on;
if so, judging whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system according to the high-low pressure ratio so as to determine whether the installation direction of the electronic expansion valve is correct.
3. A detection apparatus for an air conditioner, characterized in that the detection apparatus employs the installation detection method according to any one of claims 1 to 2; the detection device includes:
the detection module is used for detecting the high-low pressure ratio of the electronic expansion valve;
the judging module is used for judging whether the actual valve opening direction of the electronic expansion valve is the same as the preset direction of the air conditioning system.
4. An air conditioner, characterized in that it is capable of implementing the steps of the method according to any one of claims 1-2.
5. A readable storage medium, characterized in that it stores thereon a program or instructions, which when executed by a processor, implement the steps of the method according to any of claims 1-2.
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| CN202210671260.6A CN115013940B (en) | 2022-06-14 | 2022-06-14 | Method and device for detecting installation of electronic expansion valve, air conditioner and medium |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004003717A (en) * | 2002-05-31 | 2004-01-08 | Mitsubishi Electric Corp | Air conditioner |
| CN101210752A (en) * | 2006-12-28 | 2008-07-02 | 海尔集团公司 | Electronic expansion valve throttling device |
| KR20100002771A (en) * | 2008-06-30 | 2010-01-07 | 엘지전자 주식회사 | Control method of multi-type air-conditioning system |
| CN110094857A (en) * | 2019-04-11 | 2019-08-06 | 海信（山东）空调有限公司 | Control method, device, computer product and the air-conditioning of air conditioner electronic expansion valve |
| CN113701873A (en) * | 2020-05-19 | 2021-11-26 | 广州汽车集团股份有限公司 | Refrigerant flow sound detection device, system and method |
-
2022
- 2022-06-14 CN CN202210671260.6A patent/CN115013940B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004003717A (en) * | 2002-05-31 | 2004-01-08 | Mitsubishi Electric Corp | Air conditioner |
| CN101210752A (en) * | 2006-12-28 | 2008-07-02 | 海尔集团公司 | Electronic expansion valve throttling device |
| KR20100002771A (en) * | 2008-06-30 | 2010-01-07 | 엘지전자 주식회사 | Control method of multi-type air-conditioning system |
| CN110094857A (en) * | 2019-04-11 | 2019-08-06 | 海信（山东）空调有限公司 | Control method, device, computer product and the air-conditioning of air conditioner electronic expansion valve |
| CN113701873A (en) * | 2020-05-19 | 2021-11-26 | 广州汽车集团股份有限公司 | Refrigerant flow sound detection device, system and method |
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| CN115013940A (en) | 2022-09-06 |
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