CN115111816A - Method and device for detecting electronic expansion valve and storage medium - Google Patents
Method and device for detecting electronic expansion valve and storage medium Download PDFInfo
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- CN115111816A CN115111816A CN202210661983.8A CN202210661983A CN115111816A CN 115111816 A CN115111816 A CN 115111816A CN 202210661983 A CN202210661983 A CN 202210661983A CN 115111816 A CN115111816 A CN 115111816A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
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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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Abstract
本申请涉及电子膨胀阀检测技术领域，公开一种用于检测电子膨胀阀的方法，包括：获得空调压缩机的运行频率；在压缩机的运行频率不低于预设频率的情况下，确定电子膨胀阀的开度变化量及排气温度修正量；根据电子膨胀阀的开度变化量及排气温度修正量，确定电子膨胀阀的检测信息。以此方案，能够结合电子膨胀阀的开度变化量及排气温度修正量，确定电子膨胀阀的检测信息，避免了部分异常情况被忽视的问题，为用户提供了一种更加精准地电子膨胀阀故障检测方案。本申请还公开一种用于检测电子膨胀阀的装置及存储介质。
The application relates to the technical field of electronic expansion valve detection, and discloses a method for detecting an electronic expansion valve, including: obtaining the operating frequency of an air conditioner compressor; The variation of the opening degree of the expansion valve and the correction amount of the exhaust gas temperature; the detection information of the electronic expansion valve is determined according to the variation amount of the opening degree of the electronic expansion valve and the correction amount of the exhaust gas temperature. In this way, the detection information of the electronic expansion valve can be determined in combination with the change of the opening degree of the electronic expansion valve and the correction amount of the exhaust gas temperature, which avoids the problem that some abnormal conditions are ignored, and provides a more accurate electronic expansion valve for users. Valve failure detection scheme. The present application also discloses a device and a storage medium for detecting an electronic expansion valve.
Description
Technical Field
The present disclosure relates to the field of electronic expansion valve detection technologies, and for example, to a method and an apparatus for detecting an electronic expansion valve, and a storage medium.
Background
At present, an air conditioner becomes a necessary choice for people to live at home, and particularly, when the outdoor temperature is higher or lower, a user can adjust the indoor temperature of the air conditioner by controlling a corresponding mode of the air conditioner. The electronic expansion valve is used as a necessary throttling device in the air conditioner, and the fault detection mode of the electronic expansion valve is also the focus of continuous attention of research and development personnel.
The existing detection scheme of the electronic expansion valve comprises the following steps: acquiring the current exhaust temperature of the compressor, and calculating the temperature difference between the exhaust temperature of the compressor when the fault detection instruction of the electronic expansion valve is detected and the exhaust temperature of the compressor after the current opening degree of the electronic expansion valve is increased by a preset opening degree; and when the temperature difference is out of the preset temperature difference range, determining that the electronic expansion valve has a fault. Therefore, the conventional detection scheme of the electronic expansion valve can detect partial fault conditions of the electronic expansion valve, but the detection scheme still cannot detect the fault conditions caused by the fact that the coil of the electronic expansion valve is not installed in place or the electronic expansion valve is clamped, and the detection information output by the electronic expansion valve is inaccurate.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a method and a device for detecting an electronic expansion valve and a storage medium, so as to provide a more accurate detection method for the electronic expansion valve.
In some embodiments, the method for detecting an electronic expansion valve comprises: obtaining the running frequency of an air conditioner compressor; determining the opening variation and the exhaust temperature correction of the electronic expansion valve under the condition that the running frequency of the compressor is not lower than the preset frequency; and determining the detection information of the electronic expansion valve according to the opening variation and the exhaust temperature correction of the electronic expansion valve.
In some embodiments, the method for detecting an electronic expansion valve comprises: determining that the detection information of the electronic expansion valve is a fault under the condition that the opening variation of the electronic expansion valve is smaller than a first opening threshold value and the exhaust temperature correction amount is smaller than a first temperature threshold value; determining that the detection information of the electronic expansion valve is normal under the condition that the opening variation of the electronic expansion valve is not lower than a first opening threshold and not higher than a second opening threshold; and determining that the detection information of the electronic expansion valve is a fault when the opening degree variation of the electronic expansion valve is larger than a second opening degree threshold value and the exhaust temperature correction amount is larger than a second temperature threshold value.
In some embodiments, the method for detecting an electronic expansion valve comprises: under the condition that the running frequency of the compressor is a preset frequency, obtaining the initial opening degree of the electronic expansion valve; after the preset time, obtaining the current opening degree of the electronic expansion valve; and determining the difference value between the current opening degree and the initial opening degree as the opening degree variation of the electronic expansion valve.
In some embodiments, the method for detecting an electronic expansion valve comprises: obtaining exhaust temperature variation and environment temperature variation; and determining the difference value of the exhaust temperature variation and the environment temperature variation as an exhaust temperature correction quantity.
In some embodiments, the method for detecting an electronic expansion valve comprises: under the condition that the running frequency of the compressor is a preset frequency, obtaining the initial exhaust temperature of the compressor; after a preset time, acquiring the current exhaust temperature of the compressor; and taking the difference value between the current exhaust temperature and the initial exhaust temperature as the exhaust temperature variation.
In some embodiments, the method for detecting an electronic expansion valve comprises: under the condition that the operating frequency of the compressor is a preset frequency, obtaining the initial environment temperature of the environment where the air conditioner is located; after the preset time, obtaining the current environment temperature of the environment where the air conditioner is located; and taking the difference value between the current environment temperature and the initial environment temperature as the environment temperature variation.
In some embodiments, the method for detecting an electronic expansion valve comprises: and pushing detection information to a target user so that the target user can know the running state of the electronic expansion valve.
In some embodiments, the means for detecting an electronic expansion valve comprises: an obtaining module configured to obtain an operating frequency of an air conditioner compressor; the device comprises a first determining module, a second determining module and a control module, wherein the first determining module is configured to determine the opening change amount and the exhaust temperature correction amount of the electronic expansion valve under the condition that the running frequency of the compressor is not lower than a preset frequency; and the second determination module is configured to determine the detection information of the electronic expansion valve according to the opening degree change amount and the exhaust temperature correction amount of the electronic expansion valve.
In some embodiments, the means for detecting an electronic expansion valve comprises: a processor and a memory storing program instructions, the processor being configured to, upon execution of the program instructions, perform the aforementioned method for detecting an electronic expansion valve.
In some embodiments, the storage medium stores program instructions that, when executed, perform the aforementioned method for detecting an electronic expansion valve.
The method, the device and the storage medium for detecting the electronic expansion valve provided by the embodiment of the disclosure can realize the following technical effects: obtaining the running frequency of an air conditioner compressor; determining the opening variation and the exhaust temperature correction of the electronic expansion valve under the condition that the running frequency of the compressor is not lower than the preset frequency; and determining the detection information of the electronic expansion valve according to the opening variation and the exhaust temperature correction of the electronic expansion valve. According to the scheme, the detection information of the electronic expansion valve can be determined by combining the opening degree variation and the exhaust temperature correction of the electronic expansion valve, the problem that part of abnormal conditions are neglected is avoided, and a more accurate electronic expansion valve fault detection scheme is provided for users.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic diagram of a method for inspecting an electronic expansion valve according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a method for determining an opening variation according to an embodiment of the disclosure;
FIG. 3 is a schematic illustration of a method for determining an exhaust temperature modifier according to an embodiment of the disclosure;
FIG. 4 is a schematic diagram of a method for obtaining an amount of change in exhaust temperature according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of an apparatus for detecting an electronic expansion valve according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of another apparatus for detecting an electronic expansion valve according to an embodiment of the disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
The term "correspond" may refer to an association or binding relationship, and a corresponding to B refers to an association or binding relationship between a and B.
In the embodiment of the disclosure, the intelligent household appliance is a household appliance formed by introducing a microprocessor, a sensor technology and a network communication technology into the household appliance, and has the characteristics of intelligent control, intelligent sensing and intelligent application, the operation process of the intelligent household appliance usually depends on the application and processing of modern technologies such as internet of things, internet and an electronic chip, for example, the intelligent household appliance can realize the remote control and management of a user on the intelligent household appliance by connecting the intelligent household appliance with the electronic device.
In the embodiment of the present disclosure, the terminal device is an electronic device with a wireless connection function, and the terminal device may be in communication connection with the above intelligent household appliance by connecting to the internet, or may be in communication connection with the above intelligent household appliance directly by means of bluetooth, wifi, and the like. In some embodiments, the terminal device is, for example, a mobile device, a computer, or a vehicle-mounted device built in a floating car, or any combination thereof. The mobile device may include, for example, a cell phone, a smart home device, a wearable device, a smart mobile device, a virtual reality device, or the like, or any combination thereof, wherein the wearable device includes, for example: smart watches, smart bracelets, pedometers, and the like.
FIG. 1 is a schematic diagram of a method for inspecting an electronic expansion valve according to an embodiment of the present disclosure; referring to fig. 1, an embodiment of the present disclosure provides a method for detecting an electronic expansion valve, including:
s11, the air conditioner obtains the operating frequency of its compressor.
And S12, under the condition that the running frequency of the compressor is not lower than the preset frequency, the air conditioner determines the opening degree variation and the exhaust temperature correction quantity of the electronic expansion valve.
And S13, the air conditioner determines the detection information of the electronic expansion valve according to the opening change quantity and the exhaust temperature correction quantity of the electronic expansion valve.
In this scheme, the air conditioner can obtain the operating frequency of the compressor. Further, the air conditioner may compare the operating frequency of the compressor with a preset frequency, and may determine that the operating frequency of the compressor tends to be stable in a case that the operating frequency of the compressor is not lower than/reaches the preset frequency. Here, the preset frequency may be a frequency at which the compressor is stably operated. In this way, the acquisition timing of the opening degree variation and the exhaust temperature correction of the electronic expansion valve can be determined, and the acquisition of the opening degree variation and the exhaust temperature correction of the electronic expansion valve with higher accuracy is ensured.
Further, the air conditioner may determine the detection information of the electronic expansion valve by combining the opening degree variation amount and the exhaust temperature correction amount of the electronic expansion valve after determining the opening degree variation amount and the exhaust temperature correction amount of the electronic expansion valve. Here, the detection information of the electronic expansion valve may include a malfunction or a normality.
By adopting the method for detecting the electronic expansion valve provided by the embodiment of the disclosure, the running frequency of the air conditioner compressor is obtained; determining the opening variation and the exhaust temperature correction of the electronic expansion valve under the condition that the running frequency of the compressor is not lower than the preset frequency; and determining the detection information of the electronic expansion valve according to the opening variation of the electronic expansion valve and the exhaust temperature correction. According to the scheme, the detection information of the electronic expansion valve can be determined by combining the opening variation and the exhaust temperature correction of the electronic expansion valve, the problem that part of abnormal conditions are neglected is avoided, and a more accurate fault detection scheme of the electronic expansion valve is provided for users.
Alternatively, in S13, the air conditioner determining detection information of the electronic expansion valve according to the opening degree variation and the exhaust temperature correction amount of the electronic expansion valve includes:
and the air conditioner determines that the detection information of the electronic expansion valve is a fault when the opening degree variation of the electronic expansion valve is smaller than a first opening degree threshold value and the exhaust temperature correction amount is smaller than a first temperature threshold value. And under the condition that the opening degree variation of the electronic expansion valve is not lower than the first opening degree threshold value and not higher than the second opening degree threshold value, the air conditioner determines that the detection information of the electronic expansion valve is normal. And under the condition that the opening degree variation of the electronic expansion valve is larger than the second opening degree threshold value and the exhaust temperature correction amount is larger than the second temperature threshold value, the air conditioner determines that the detection information of the electronic expansion valve is a fault.
In this aspect, the air conditioner determines that the detection information of the electronic expansion valve is a failure when the opening degree variation of the electronic expansion valve is smaller than the first opening degree threshold and the exhaust temperature correction amount is smaller than the first temperature threshold. Here, the first opening degree threshold value and the first temperature threshold value may be stored in the air conditioner in advance, and as an example, the first opening degree threshold value may be-50 steps and the first temperature threshold value may be 2 ℃. Therefore, the air conditioner can determine that the detection information of the electronic expansion valve is a fault when the opening variation of the electronic expansion valve is less than-50 steps and the exhaust temperature correction is less than 2 ℃; the air conditioner may determine that the detection information of the electronic expansion valve is normal in a case where an opening degree variation amount of the electronic expansion valve is not lower than the first opening degree threshold value and not higher than the second opening degree threshold value. Here, the second opening degree threshold value may be previously stored in the air conditioner, and as an example, the second opening degree threshold value may be 50 steps. Thus, the air conditioner can determine that the detection information of the electronic expansion valve is normal under the condition that the opening variation of the electronic expansion valve is not less than-50 steps and not more than 50 steps; the air conditioner may determine that the detection information of the electronic expansion valve is a failure in a case where the opening degree variation amount of the electronic expansion valve is greater than the second opening degree threshold value and the exhaust temperature correction amount is greater than the second temperature threshold value. Here, the second temperature threshold may be previously stored in the air conditioner, and as an example, the second temperature threshold may be-2 ℃. Thus, the air conditioner can determine that the detection information of the electronic expansion valve is a fault when the opening variation of the electronic expansion valve is more than 50 steps and the exhaust temperature correction amount is more than-2 ℃. According to the scheme, the opening degree change condition and the exhaust temperature correction condition of the electronic expansion valve can be comprehensively considered, and the detection information of the electronic expansion valve can be determined more accurately.
FIG. 2 is a schematic diagram of a method for determining an opening variation according to an embodiment of the disclosure; referring to fig. 2, optionally, the air conditioner determines an opening degree variation amount of the electronic expansion valve in S12, including:
and S21, under the condition that the running frequency of the compressor is the preset frequency, the air conditioner obtains the initial opening degree of the electronic expansion valve.
And S22, after the preset time, the air conditioner obtains the current opening degree of the electronic expansion valve.
And S23, determining the difference between the current opening degree and the initial opening degree as the opening degree variation of the electronic expansion valve by the air conditioner.
In the scheme, under the condition that the operating frequency of the compressor is the preset frequency, the air conditioner can obtain the current opening degree of the electronic expansion valve by determining that the air conditioner compressor is currently in a stable operating state. Here, the current opening degree of the electronic expansion valve is an opening degree of the electronic expansion valve when the compressor operation frequency is a preset frequency. Further, the air conditioner may obtain the current opening degree of the electronic expansion valve after a preset time period. As an example, the preset time period may be 3 minutes. In this way, the air conditioner may determine the opening degree variation of the electronic expansion valve in combination with the initial opening degree of the electronic expansion valve and the current opening degree of the electronic expansion valve. Specifically, the opening degree variation amount of the electronic expansion valve may be determined by: f ═ F At present -F Initial (ii) a Wherein, DeltaF is the opening variation of the electronic expansion valve, F At present Current opening degree of the electronic expansion valve, F Initial Is the initial opening degree of the electronic expansion valve. According to the scheme, the difference value between the current opening degree and the initial opening degree can be determined as the opening degree variation of the electronic expansion valve, the opening degree variation can be accurately acquired, and an accurate data basis is provided for determination of detection information of the electronic expansion valve.
FIG. 3 is a schematic illustration of a method for determining an exhaust temperature modifier according to an embodiment of the disclosure; referring to fig. 3, optionally, S12, the air conditioner determines an exhaust temperature correction amount, including:
and S31, the air conditioner obtains the exhaust temperature variation and the environment temperature variation.
S32, the air conditioner determines the difference between the exhaust temperature variation and the ambient temperature variation as an exhaust temperature correction amount.
In this scheme, in order to determine the exhaust temperature correction amount with higher accuracy, the air conditioner may obtain the exhaust temperature variation and the ambient temperature variation, and determine the exhaust temperature correction amount by combining the exhaust temperature variation and the ambient temperature variation. Specifically, the exhaust temperature correction amount may be determined by: Δ U ═ Δ T- Δ S; wherein, Δ U is an exhaust temperature correction amount, Δ T is an exhaust temperature variation amount, and Δ S is an ambient temperature variation amount. According to the scheme, the difference value between the exhaust temperature variation and the environment temperature variation can be determined as the exhaust temperature correction, so that the exhaust temperature correction can be accurately obtained, and an accurate data basis is provided for determining the detection information of the electronic expansion valve.
FIG. 4 is a schematic diagram of a method for obtaining an amount of change in exhaust temperature according to an embodiment of the present disclosure; referring to fig. 4, optionally, S31, the air conditioner obtains an exhaust temperature variation amount including:
and S41, under the condition that the running frequency of the compressor is the preset frequency, the air conditioner obtains the initial exhaust temperature of the compressor.
And S42, after the preset time, the air conditioner obtains the current exhaust temperature of the compressor.
And S43, taking the difference between the current exhaust temperature and the initial exhaust temperature as the exhaust temperature variation.
In the scheme, under the condition that the operating frequency of the compressor is the preset frequency, the air conditioner can obtain the initial exhaust temperature of the compressor by determining that the air conditioner compressor is in the stable operating state currently. Here, the initial discharge temperature of the compressor is a discharge temperature of the compressor when the compressor operation frequency is a preset frequency. Further, the air conditioner may obtain the current discharge temperature of the compressor after a preset time period. As an example, the preset time period may be 3 minutes. Thus, the air conditioner may determine the discharge temperature variation amount in combination with the initial discharge temperature of the compressor and the current discharge temperature of the compressor. Specifically, the exhaust temperature variation amount may be determined by: t is At present -T Initial (ii) a Where Δ T is the exhaust temperature variation, T At present Is the current discharge temperature, T, of the compressor Initial Is the initial discharge temperature of the compressor. According to the scheme, the difference value between the current exhaust temperature and the initial exhaust temperature can be used as the exhaust temperature variation, so that the exhaust temperature variation can be accurately acquired, and an accurate data basis is provided for the determination of the exhaust temperature correction quantity.
Alternatively, S31, the air conditioner obtains the ambient temperature variation, including:
under the condition that the operating frequency of the compressor is the preset frequency, the air conditioner obtains the initial environment temperature of the environment where the air conditioner is located.
After the preset time, the air conditioner obtains the current ambient temperature of the environment where the air conditioner is located.
The air conditioner uses the difference between the current ambient temperature and the initial ambient temperature as the ambient temperature variation.
In the scheme, under the condition that the operating frequency of the compressor is the preset frequency, the air conditioner compressor is determined to be in the stable operating state at present, and then the air conditioner can obtain the initial ambient temperature of the environment where the air conditioner is located. Here, the initial ambient temperature of the environment where the air conditioner is located is the ambient temperature of the environment where the air conditioner is located when the operation frequency of the compressor is the preset frequency. Further, the air conditioner can obtain the current ambient temperature of the environment where the air conditioner is located after the preset time period. As an example, the preset time period may be 3 minutes. Thus, the air conditioner can determine the variation of the ambient temperature by combining the initial ambient temperature of the environment where the air conditioner is located and the current ambient temperature. Specifically, the ambient temperature change amount may be determined by: Δ S ═ S At present -S Initial (ii) a Wherein, Delta S is the variation of the ambient temperature, S At present Is the current ambient temperature, S, of the environment in which the air conditioner is located Initial Is the initial ambient temperature of the environment in which the air conditioner is located. With this scheme, can regard as the ambient temperature variation with the difference of initial ambient temperature with current ambient temperature, realize accurate the acquireing of ambient temperature variation, provide accurate data basis for the determination of exhaust temperature correction.
Optionally, after determining the detection information of the electronic expansion valve, the method further includes:
the air conditioner pushes detection information to a target user so that the target user can know the running state of the electronic expansion valve.
In the scheme, after the detection information of the electronic expansion valve is determined, in order to enable a target user to know the operation state of the electronic expansion valve in time and to take timely and effective measures according to the operation state, the air conditioner can be controlled to push the detection information to the target user. Here, the target user may be a user with the highest priority among home users or a serviceman associated with the air conditioner. Specifically, the pushing manner of the detection information is not limited to text pushing, image pushing, light pushing, and the like. With this scheme, can make the target user in time know the running state of electronic expansion valve, help under the circumstances that electronic expansion valve breaks down, in time effectively maintain electronic expansion valve, reduce because electronic expansion valve is malfunctioning and to the adverse effect that air conditioner intelligent control caused.
FIG. 5 is a schematic diagram of an apparatus for detecting an electronic expansion valve according to an embodiment of the present disclosure; referring to fig. 5, an apparatus for detecting an electronic expansion valve according to an embodiment of the present disclosure includes an obtaining module 51, a first determining module 52, and a second determining module 53. The obtaining module 51 is configured to obtain an operating frequency of the air conditioner compressor; the first determination module 52 is configured to determine an opening degree variation amount and an exhaust temperature correction amount of the electronic expansion valve in a case where an operation frequency of the compressor is not lower than a preset frequency; the second determination module 53 is configured to determine detection information of the electronic expansion valve according to an opening degree variation amount and an exhaust temperature correction amount of the electronic expansion valve.
By adopting the device for detecting the electronic expansion valve provided by the embodiment of the disclosure, the running frequency of the air-conditioning compressor is obtained; determining the opening variation and the exhaust temperature correction of the electronic expansion valve under the condition that the running frequency of the compressor is not lower than the preset frequency; and determining the detection information of the electronic expansion valve according to the opening variation and the exhaust temperature correction of the electronic expansion valve. According to the scheme, the detection information of the electronic expansion valve can be determined by combining the opening degree variation and the exhaust temperature correction of the electronic expansion valve, the problem that part of abnormal conditions are neglected is avoided, and a more accurate electronic expansion valve fault detection scheme is provided for users.
FIG. 6 is a schematic diagram of another apparatus for detecting an electronic expansion valve provided by an embodiment of the present disclosure; as shown in fig. 6, an apparatus for detecting an electronic expansion valve according to an embodiment of the present disclosure includes a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to execute the method for detecting an electronic expansion valve of the above-described embodiment.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the method for detecting an electronic expansion valve in the above embodiments.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-mentioned method for detecting an electronic expansion valve.
Embodiments of the present disclosure provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-mentioned method for detecting an electronic expansion valve.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a portable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A method for inspecting an electronic expansion valve, comprising:
obtaining the running frequency of an air conditioner compressor;
determining the opening degree variation and the exhaust temperature correction of the electronic expansion valve under the condition that the running frequency of the compressor is not lower than a preset frequency;
and determining the detection information of the electronic expansion valve according to the opening variation of the electronic expansion valve and the exhaust temperature correction.
2. The method according to claim 1, wherein determining detection information of the electronic expansion valve based on the opening degree variation amount of the electronic expansion valve and the exhaust temperature correction amount comprises:
determining that the detection information of the electronic expansion valve is a fault under the condition that the opening variation of the electronic expansion valve is smaller than a first opening threshold value and the exhaust temperature correction amount is smaller than a first temperature threshold value;
determining that the detection information of the electronic expansion valve is normal under the condition that the opening variation of the electronic expansion valve is not lower than the first opening threshold and not higher than the second opening threshold;
and determining that the detection information of the electronic expansion valve is a fault when the opening degree variation of the electronic expansion valve is larger than the second opening degree threshold value and the exhaust temperature correction amount is larger than a second temperature threshold value.
3. The method of claim 1, wherein determining the amount of change in the opening degree of the electronic expansion valve comprises:
under the condition that the running frequency of the compressor is a preset frequency, obtaining the initial opening degree of the electronic expansion valve;
after the preset time, obtaining the current opening degree of the electronic expansion valve;
and determining the difference value between the current opening degree and the initial opening degree as the opening degree variation of the electronic expansion valve.
4. The method of claim 1, wherein the determining an exhaust temperature modifier comprises:
obtaining exhaust temperature variation and environment temperature variation;
and determining the difference value between the exhaust temperature variation and the environment temperature variation as the exhaust temperature correction.
5. The method of claim 4, wherein the obtaining an exhaust temperature change amount comprises:
under the condition that the running frequency of the compressor is a preset frequency, obtaining the initial exhaust temperature of the compressor;
after a preset time, obtaining the current exhaust temperature of the compressor;
and taking the difference value of the current exhaust temperature and the initial exhaust temperature as the exhaust temperature variation.
6. The method of claim 4, wherein obtaining the ambient temperature delta comprises:
under the condition that the operating frequency of the compressor is a preset frequency, obtaining the initial environment temperature of the environment where the air conditioner is located;
after a preset time, obtaining the current environment temperature of the environment where the air conditioner is located;
and taking the difference value between the current environment temperature and the initial environment temperature as the environment temperature variation.
7. The method of claim 1, wherein after determining detection information for the electronic expansion valve, the method further comprises:
and pushing the detection information to a target user so that the target user knows the running state of the electronic expansion valve.
8. An apparatus for testing an electronic expansion valve, comprising:
an obtaining module configured to obtain an operating frequency of an air conditioner compressor;
the first determination module is configured to determine the opening degree change amount and the exhaust temperature correction amount of the electronic expansion valve under the condition that the running frequency of the compressor is not lower than a preset frequency;
the second determination module is configured to determine detection information of the electronic expansion valve according to the opening degree change amount of the electronic expansion valve and the exhaust temperature correction amount.
9. An apparatus for detecting an electronic expansion valve, comprising a processor and a memory having stored thereon program instructions, characterized in that the processor is configured to execute the method for detecting an electronic expansion valve according to any of claims 1 to 7 when executing the program instructions.
10. A storage medium storing program instructions which, when executed, perform a method for detecting an electronic expansion valve according to any one of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210661983.8A CN115111816B (en) | 2022-06-13 | 2022-06-13 | Method, device and storage medium for detecting electronic expansion valve |
| PCT/CN2023/075190 WO2023241071A1 (en) | 2022-06-13 | 2023-02-09 | Method and apparatus for performing detection on electronic expansion valve, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210661983.8A CN115111816B (en) | 2022-06-13 | 2022-06-13 | Method, device and storage medium for detecting electronic expansion valve |
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| Publication Number | Publication Date |
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| CN115111816A true CN115111816A (en) | 2022-09-27 |
| CN115111816B CN115111816B (en) | 2025-07-18 |
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| CN202210661983.8A Active CN115111816B (en) | 2022-06-13 | 2022-06-13 | Method, device and storage medium for detecting electronic expansion valve |
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| CN (1) | CN115111816B (en) |
| WO (1) | WO2023241071A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023241071A1 (en) * | 2022-06-13 | 2023-12-21 | 青岛海尔空调器有限总公司 | Method and apparatus for performing detection on electronic expansion valve, and storage medium |
| CN117309371A (en) * | 2023-11-30 | 2023-12-29 | 珠海格力电器股份有限公司 | Electronic expansion valve and fan module detection method of water source heat pump unit |
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| CN119826412B (en) * | 2025-01-14 | 2026-01-20 | Tcl家用电器（合肥）有限公司 | Temperature control method, device, medium and equipment |
| CN120292770B (en) * | 2025-06-13 | 2025-09-12 | 珠海格力电器股份有限公司 | Correction method and device of electronic expansion valve, air-cooled chiller unit and storage medium |
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| Publication number | Publication date |
|---|---|
| CN115111816B (en) | 2025-07-18 |
| WO2023241071A1 (en) | 2023-12-21 |
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