CN110553377B - Filth blockage detection method and system for outdoor heat exchanger of air conditioner and air conditioner - Google Patents
Filth blockage detection method and system for outdoor heat exchanger of air conditioner and air conditioner Download PDFInfo
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- CN110553377B CN110553377B CN201910950091.8A CN201910950091A CN110553377B CN 110553377 B CN110553377 B CN 110553377B CN 201910950091 A CN201910950091 A CN 201910950091A CN 110553377 B CN110553377 B CN 110553377B
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The application provides a filth blockage detection method and system for an outdoor heat exchanger of an air conditioner and the air conditioner. The filth blockage detection method for the outdoor heat exchanger of the air conditioner comprises the following steps of: acquiring operation parameters of an air conditioner, wherein the operation parameters at least comprise pressure difference between an inlet and an outlet of an outdoor heat exchanger, rotating speed of an outdoor fan and working current of the air conditioner; and determining whether the outdoor heat exchanger is dirty or not according to the operating parameters of the air conditioner. The dirty and blocked detection method for the outdoor heat exchanger of the air conditioner can accurately judge whether the outdoor heat exchanger is dirty and blocked or not, and has the advantages of being accurate and reliable in detection, so that a user can clean the dirty and blocked outdoor heat exchanger in time, and the reliability of the air conditioner is improved.
Description
Technical Field
The application relates to the technical field of refrigeration equipment, in particular to a filth blockage detection method and system for an outdoor heat exchanger of an air conditioner and the air conditioner.
Background
The outdoor heat exchanger of the air conditioner is dirty and blocked, such as: when a large amount of dust is covered or foreign matters shield the surface of the air conditioner, outdoor air inlet measurement is affected, the outdoor heat exchange effect is affected, and further, the current of the air conditioner complete machine is increased, the exhaust gas of the compressor is increased, and the reliability of the complete machine and the compressor is affected.
In the related art, the air conditioner has few functions of detecting the filth blockage of the outdoor heat exchanger, and even if part of the air conditioner has the filth blockage detection function, whether the filth blockage exists is generally judged according to the temperature of the outdoor heat exchanger, and the following technical defects exist:
whether dirty stifled takes place for outdoor heat exchanger is judged to temperature through outdoor heat exchanger, and the decision-making mode is comparatively simple, and outdoor heat exchanger's temperature detection has great error, consequently, takes place the false detection easily, promptly: the detection accuracy is poor, and the reliability of the air conditioner is further influenced.
Disclosure of Invention
The present application is directed to solving at least one of the above problems.
To this end, an object of the present application is to provide a filth blockage detection method for an outdoor heat exchanger of an air conditioner. The method can accurately judge whether the outdoor heat exchanger is dirty or not, and has the advantages of accurate and reliable detection, so that a user can clean the outdoor heat exchanger in time, and the reliability of the air conditioner is improved.
A second object of the present application is to provide a filth blockage detection system for an outdoor heat exchanger of an air conditioner.
A third object of the present application is to provide an air conditioner.
A fourth object of the present application is to propose a computer readable storage medium.
In order to achieve the above object, a first aspect of the present application discloses a filth blockage detection method for an outdoor heat exchanger of an air conditioner, comprising the steps of: acquiring operation parameters of an air conditioner, wherein the operation parameters at least comprise pressure difference between an inlet and an outlet of an outdoor heat exchanger, rotating speed of an outdoor fan and working current of the air conditioner; and determining whether the outdoor heat exchanger is dirty or not according to the operating parameters of the air conditioner.
According to the dirty and blocked detection method for the outdoor heat exchanger of the air conditioner, whether the outdoor heat exchanger is dirty and blocked can be accurately judged, and the dirty and blocked detection method has the advantages of being accurate and reliable in detection, so that a user can clean the dirty and blocked heat exchanger in time, and further the reliability of the air conditioner is improved.
In some examples, the determining whether the outdoor heat exchanger is dirty or not according to the operation parameters of the air conditioner includes: judging whether the pressure difference between the inlet and the outlet of the outdoor heat exchanger is greater than a preset pressure difference or not; judging whether the rotating speed of the outdoor fan is less than a preset rotating speed or not; judging whether the working current of the air conditioner is greater than a preset current or not; and if the pressure difference between the inlet and the outlet of the outdoor heat exchanger is greater than the preset pressure difference, the rotating speed of the outdoor fan is less than the preset rotating speed, and the working current of the air conditioner is greater than the preset current, determining that the outdoor heat exchanger is dirty and blocked.
In some examples, after determining that the outdoor heat exchanger is dirty, further comprising: and determining the filth blockage grade according to the pressure difference between the inlet and the outlet of the outdoor heat exchanger, the rotating speed of the outdoor fan and/or the working current of the air conditioner.
In some examples, the visceral levels include at least a mild visceral level and a severe visceral level, the method further comprising: if the degree is a mild filth blockage grade, performing filth blockage alarm; and if the dirty blockage level is severe, controlling the air conditioner to stop after a dirty blockage alarm is carried out.
In some examples, if the mild visceral obstruction level is achieved, the method further comprises: the operating frequency of the compressor is reduced.
In some examples, further comprising: and performing an operation experiment when the outdoor heat exchanger is dirty and blocked so as to determine the preset pressure difference, the preset rotating speed and the preset current.
A second aspect of the present application discloses an outdoor heat exchanger filth blockage detection system of an air conditioner, comprising: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the operation parameters of the air conditioner, and the operation parameters at least comprise the pressure difference of an inlet and an outlet of an outdoor heat exchanger, the rotating speed of an outdoor fan and the working current of the air conditioner; and the dirty blockage judging module is used for determining whether the outdoor heat exchanger is dirty or not according to the operating parameters of the air conditioner.
According to the dirty and blocked detection system for the outdoor heat exchanger of the air conditioner, whether the outdoor heat exchanger is dirty and blocked can be accurately judged, and the dirty and blocked detection system has the advantages of being accurate and reliable in detection, so that a user can clean the dirty and blocked detection system in time, and the reliability of the air conditioner is improved.
In some examples, the filth blockage determination module is configured to determine whether a pressure difference between an inlet and an outlet of the outdoor heat exchanger is greater than a preset pressure difference, determine whether a rotation speed of the outdoor fan is less than a preset rotation speed, determine whether an operating current of the air conditioner is greater than a preset current, and determine that the outdoor heat exchanger is filth-blocked if the pressure difference between the inlet and the outlet of the outdoor heat exchanger is greater than the preset pressure difference, the rotation speed of the outdoor fan is less than the preset rotation speed, and the operating current of the air conditioner is greater than the preset current.
In some examples, the filth blockage determination module is further configured to determine a filth blockage level according to the magnitude of the pressure difference between the inlet and the outlet of the outdoor heat exchanger, the magnitude of the rotating speed of the outdoor fan and/or the magnitude of the air conditioner working current after determining the filth blockage of the outdoor heat exchanger.
In some examples, the visceral levels include at least a mild visceral level and a severe visceral level, the system further comprising: the alarm module is used for giving a filth blockage alarm when the filth blockage judging module determines that the filth blockage is in a mild filth blockage grade; and the control module is used for controlling the air conditioner to stop when the filth blockage judging module determines that the filth blockage grade is severe.
In some examples, the control module is further configured to decrease an operating frequency of the compressor when the blockage determination module determines a mild blockage level.
A third aspect of the present application discloses an air conditioner, including a memory, a processor, and an outdoor heat exchanger filth blockage detection program of the air conditioner, which is stored in the memory and can be run on the processor, wherein when the processor executes the outdoor heat exchanger filth blockage detection program of the air conditioner, the method for detecting the filth blockage of the outdoor heat exchanger of the air conditioner according to the first aspect is implemented. The air conditioner can accurately judge whether the outdoor heat exchanger is dirty or not, and has the advantages of being accurate and reliable in detection, so that a user can clean the outdoor heat exchanger in time, and the reliability of the air conditioner is improved.
A fourth aspect of the present application discloses a computer-readable storage medium on which an outdoor heat exchanger filth detection program of an air conditioner is stored, which when executed by a processor, implements the outdoor heat exchanger filth detection method of an air conditioner according to the first aspect described above.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart illustrating a method for detecting filth blockage of an outdoor heat exchanger of an air conditioner according to an embodiment of the present disclosure;
fig. 2 is a block diagram illustrating a structure of an outdoor heat exchanger filth blockage detection system of an air conditioner according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The following describes an outdoor heat exchanger filth blockage detection method and system of an air conditioner and the air conditioner according to the embodiment of the application with reference to the accompanying drawings.
Fig. 1 is a flowchart of an outdoor heat exchanger filth blockage detection method of an air conditioner according to an embodiment of the present application. As shown in fig. 1, a method for detecting filth blockage of an outdoor heat exchanger of an air conditioner according to an embodiment of the present application includes the following steps:
s101: and acquiring the operation parameters of the air conditioner, wherein the operation parameters at least comprise the pressure difference of an inlet and an outlet of the outdoor heat exchanger, the rotating speed of an outdoor fan and the working current of the air conditioner.
For example: the pressure sensor is used for detecting the pressure at the inlet of the outdoor heat exchanger and the pressure at the outlet of the outdoor heat exchanger, so that the pressure difference between the inlet and the outlet of the outdoor heat exchanger can be obtained. The rotating speed of the outdoor fan and the working current of the air conditioner can be obtained by utilizing the feedback of the air conditioning system, and the working current of the air conditioner can also be obtained by detecting through a current sensor and the like.
S102: and determining whether the outdoor heat exchanger is dirty or not according to the operating parameters of the air conditioner.
As a specific example, determining whether the outdoor heat exchanger is dirty or not according to the operation parameters of the air conditioner includes: judging whether the pressure difference between the inlet and the outlet of the outdoor heat exchanger is greater than a preset pressure difference or not; judging whether the rotating speed of the outdoor fan is less than a preset rotating speed or not; judging whether the working current of the air conditioner is greater than the preset current or not; and if the pressure difference between the inlet and the outlet of the outdoor heat exchanger is greater than the preset pressure difference, the rotating speed of the outdoor fan is less than the preset rotating speed and the working current of the air conditioner is greater than the preset current, determining that the outdoor heat exchanger is dirty and blocked.
Namely: if the rotating speed of the outdoor fan is lower than the preset rotating speed, whether the working current of the air conditioner is larger than the preset current or not is further judged, if the working current of the air conditioner is larger than the preset current, whether the pressure difference between the inlet and the outlet of the outdoor heat exchanger is larger than the preset pressure difference or not is further judged, and if the pressure difference between the inlet and the outlet of the outdoor heat exchanger is larger than the preset pressure difference, dirty and blockage of the outdoor heat exchanger is judged.
In the above description, the preset pressure difference, the preset rotation speed and the preset current may be obtained through experiments, for example: and performing an operation experiment under the condition that the outdoor heat exchanger is dirty and blocked so as to determine a preset pressure difference, a preset rotating speed and a preset current. That is, the outdoor heat exchanger is subjected to filth blockage treatment in advance, then the air conditioner is started, and the pressure difference between the inlet and the outlet of the outdoor heat exchanger, the rotating speed of the outdoor fan, the working current of the air conditioner and the like are detected for multiple times. Thus, the preset pressure difference, the preset rotation speed and the preset current can be obtained through statistics.
According to the dirty and blocked detection method for the outdoor heat exchanger of the air conditioner, whether the outdoor heat exchanger is dirty and blocked can be accurately judged, and the dirty and blocked detection method has the advantages of being accurate and reliable in detection, so that a user can clean the dirty and blocked heat exchanger in time, and further the reliability of the air conditioner is improved.
Further, after it is determined that the outdoor heat exchanger is dirty, the method further comprises: and determining the filth blockage grade according to the pressure difference between the inlet and the outlet of the outdoor heat exchanger, the rotating speed of the outdoor fan and/or the working current of the air conditioner. For example: the larger the pressure difference between the inlet and the outlet of the outdoor heat exchanger is, the smaller the rotating speed of the outdoor fan is and the larger the working current of the air conditioner is, the higher the filth blockage grade is, namely: the filth blockage situation is more serious.
For example: the visceral levels comprise at least a mild visceral level and a severe visceral level, and the method therefore further comprises: if the degree is a mild filth blockage grade, performing filth blockage alarm; and if the dirty blockage level is severe, controlling the air conditioner to stop after a dirty blockage alarm is carried out.
That is to say, when the dirty stifled condition of outdoor heat exchanger is not serious, can in time send the suggestion, the user just in time clears up. Of course, if the filth blockage is severe, the air conditioner may be adversely affected to continue to operate, for example: the damage compressor, the operating efficiency is poor, consequently, can control the air conditioner and in time shut down, avoid causing the unnecessary loss, further promote the reliability of air conditioner.
Further, if the grade is a mild filth blockage grade, the method also comprises the following steps: the operating frequency of the compressor is reduced. Namely: by limiting the operating frequency of the compressor, the damage to the compressor can be effectively avoided, and therefore the safety and the reliability of the air conditioner are further improved.
Fig. 2 is a block diagram illustrating a configuration of an outdoor heat exchanger filth blockage detection system of an air conditioner according to an embodiment of the present application. As shown in fig. 2, an outdoor heat exchanger filth detection system 200 of an air conditioner according to an embodiment of the present application includes: an acquisition module 210 and a dirty block determination module 220.
The obtaining module 210 is configured to obtain operation parameters of the air conditioner, where the operation parameters at least include a pressure difference between an inlet and an outlet of the outdoor heat exchanger, a rotating speed of the outdoor fan, and an operating current of the air conditioner. The dirty/blocked determination module 220 is configured to determine whether the outdoor heat exchanger is dirty or not according to the operation parameter of the air conditioner.
In an embodiment of the present application, dirty stifled determination module 220 is used for judging whether the pressure differential of outdoor heat exchanger entry and export is greater than preset pressure differential, judges whether outdoor fan rotational speed is less than preset rotational speed, judges whether air conditioner operating current is greater than preset electric current, if the pressure differential of outdoor heat exchanger entry and export is greater than preset pressure differential outdoor fan rotational speed is less than preset rotational speed just air conditioner operating current is greater than preset electric current, then confirms that outdoor heat exchanger is dirty stifled.
In an embodiment of the present application, the filth blockage determination module 220 is further configured to determine a filth blockage level according to a magnitude of a pressure difference between an inlet and an outlet of the outdoor heat exchanger, a magnitude of the rotating speed of the outdoor fan, and/or a magnitude of the air conditioner operating current after determining the filth blockage of the outdoor heat exchanger.
In one embodiment of the present application, the visceral levels comprise at least a mild visceral level and a severe visceral level, the system further comprising: the alarm module (not shown in fig. 2) is used for giving a filth blockage alarm when the filth blockage judging module determines that the filth blockage is in a mild filth blockage grade; and the control module (not shown in figure 2) is used for controlling the air conditioner to stop when the filth blockage judging module determines that the filth blockage level is serious.
Further, the control module is also used for reducing the running frequency of the compressor when the filth blockage judging module determines that the filth blockage level is light.
According to the dirty and blocked detection system for the outdoor heat exchanger of the air conditioner, whether the outdoor heat exchanger is dirty and blocked can be accurately judged, and the dirty and blocked detection system has the advantages of being accurate and reliable in detection, so that a user can clean the dirty and blocked outdoor heat exchanger in time, and the reliability of the air conditioner is improved.
It should be noted that a specific implementation manner of the system for detecting filth blockage of an outdoor heat exchanger of an air conditioner in the embodiment of the present application is similar to a specific implementation manner of the method for detecting filth blockage of an outdoor heat exchanger of an air conditioner in the embodiment of the present application, and reference is specifically made to the description of the method portion, which is not described herein again.
Further, an embodiment of the present application discloses an air conditioner, which includes a memory, a processor, and an outdoor heat exchanger filth blockage detection program of the air conditioner, which is stored in the memory and can be run on the processor, wherein when the processor executes the outdoor heat exchanger filth blockage detection program of the air conditioner, the method for detecting the filth blockage of the outdoor heat exchanger of the air conditioner according to any one of the embodiments is implemented. The air conditioner can accurately judge whether the outdoor heat exchanger is dirty or not, and has the advantages of being accurate and reliable in detection, so that a user can clean the outdoor heat exchanger in time, and the reliability of the air conditioner is improved.
In addition, other configurations and functions of the air conditioner according to the embodiment of the present application are known to those skilled in the art, and are not described herein.
The computer-readable storage medium of the embodiment of the present application stores thereon a filth detection program for an outdoor heat exchanger of an air conditioner, and when the filth detection program for the outdoor heat exchanger of the air conditioner is executed by a processor, the filth detection method for the outdoor heat exchanger of the air conditioner according to any one of the embodiments described above is implemented.
The computer-readable storage medium described above may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, 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 (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM), a flash Memory, an optical fiber, a portable compact disc Read Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of Network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (11)
1. A filth blockage detection method for an outdoor heat exchanger of an air conditioner is characterized by comprising the following steps:
acquiring operation parameters of an air conditioner, wherein the operation parameters at least comprise pressure difference between an inlet and an outlet of an outdoor heat exchanger, rotating speed of an outdoor fan and working current of the air conditioner;
determining whether the outdoor heat exchanger is dirty or not according to the operating parameters of the air conditioner;
determining whether the outdoor heat exchanger is dirty or not according to the operation parameters of the air conditioner, and sequentially comprising the following steps:
judging whether the rotating speed of the outdoor fan is less than a preset rotating speed or not;
if the rotating speed of the outdoor fan is less than the preset rotating speed, further judging whether the working current of the air conditioner is greater than the preset current;
if the working current of the air conditioner is greater than the preset current, further judging whether the pressure difference between the inlet and the outlet of the outdoor heat exchanger is greater than the preset pressure difference;
and if the rotating speed of the outdoor fan is less than a preset rotating speed, the working current of the air conditioner is greater than a preset current, and the pressure difference between the inlet and the outlet of the outdoor heat exchanger is greater than a preset pressure difference, determining that the outdoor heat exchanger is dirty and blocked.
2. The method for detecting the fouling of the outdoor heat exchanger of the air conditioner as set forth in claim 1, wherein after determining that the outdoor heat exchanger is fouled, the method further comprises:
and determining the filth blockage grade according to the pressure difference between the inlet and the outlet of the outdoor heat exchanger, the rotating speed of the outdoor fan and/or the working current of the air conditioner.
3. The method of detecting clogging of an outdoor heat exchanger of an air conditioner according to claim 2, wherein the clogging level includes at least a light clogging level and a heavy clogging level, the method further comprising:
if the degree is a mild filth blockage grade, performing filth blockage alarm;
and if the dirty blockage level is severe, controlling the air conditioner to stop after a dirty blockage alarm is carried out.
4. The method for detecting the filth blockage of the outdoor heat exchanger of the air conditioner as claimed in claim 3, wherein if the grade is a mild filth blockage grade, the method further comprises the following steps: the operating frequency of the compressor is reduced.
5. An outdoor heat exchanger filth blockage detecting method of an air conditioner according to any one of claims 2 to 4, characterized by further comprising:
and performing an operation experiment when the outdoor heat exchanger is dirty and blocked so as to determine the preset pressure difference, the preset rotating speed and the preset current.
6. An outdoor heat exchanger filth blockage detection system of an air conditioner is characterized by comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the operation parameters of the air conditioner, and the operation parameters at least comprise the pressure difference of an inlet and an outlet of an outdoor heat exchanger, the rotating speed of an outdoor fan and the working current of the air conditioner;
the dirty blockage judging module is used for determining whether the outdoor heat exchanger is dirty or not according to the operation parameters of the air conditioner;
the filth blockage judging module is used for sequentially judging: whether the rotating speed of the outdoor fan is less than a preset rotating speed or not is judged, if so, whether the working current of the air conditioner is greater than a preset current or not is further judged, and if so, whether the pressure difference between the inlet and the outlet of the outdoor heat exchanger is greater than a preset pressure difference or not is further judged; and if the rotating speed of the outdoor fan is less than a preset rotating speed, the working current of the air conditioner is greater than a preset current, and the pressure difference between the inlet and the outlet of the outdoor heat exchanger is greater than a preset pressure difference, determining that the outdoor heat exchanger is dirty and blocked.
7. The system for detecting the dirty blockage of the outdoor heat exchanger of the air conditioner as claimed in claim 6, wherein the dirty blockage determining module is further configured to determine a dirty blockage level according to the magnitude of the pressure difference between the inlet and the outlet of the outdoor heat exchanger, the magnitude of the rotating speed of the outdoor fan and/or the magnitude of the working current of the air conditioner after determining the dirty blockage of the outdoor heat exchanger.
8. An outdoor heat exchanger filth detection system for an air conditioner according to claim 7, wherein the filth levels include at least a light filth level and a heavy filth level, the system further comprising:
the alarm module is used for giving a filth blockage alarm when the filth blockage judging module determines that the filth blockage is in a mild filth blockage grade;
and the control module is used for controlling the air conditioner to stop when the filth blockage judging module determines that the filth blockage grade is severe.
9. The system of claim 8, wherein the control module is further configured to reduce the operating frequency of the compressor when the blockage determination module determines that the blockage is of a mild blockage grade.
10. An air conditioner, characterized by comprising a memory, a processor and an outdoor heat exchanger filth blockage detection program of the air conditioner, wherein the outdoor heat exchanger filth blockage detection program is stored on the memory and can run on the processor, and when the processor executes the outdoor heat exchanger filth blockage detection program of the air conditioner, the outdoor heat exchanger filth blockage detection method of the air conditioner is realized according to any one of claims 1 to 5.
11. A computer-readable storage medium on which an outdoor heat exchanger filth detection program of an air conditioner is stored, characterized in that the outdoor heat exchanger filth detection program of the air conditioner, when executed by a processor, implements the outdoor heat exchanger filth detection method of the air conditioner according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910950091.8A CN110553377B (en) | 2019-10-08 | 2019-10-08 | Filth blockage detection method and system for outdoor heat exchanger of air conditioner and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910950091.8A CN110553377B (en) | 2019-10-08 | 2019-10-08 | Filth blockage detection method and system for outdoor heat exchanger of air conditioner and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110553377A CN110553377A (en) | 2019-12-10 |
| CN110553377B true CN110553377B (en) | 2021-09-21 |
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| CN111076358B (en) * | 2019-12-30 | 2021-08-27 | 宁波奥克斯电气股份有限公司 | Air conditioner external unit dust removal method and device and air conditioner |
| CN111706924B (en) * | 2020-05-21 | 2021-06-01 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and filter screen filth blockage detection method |
| CN111811108B (en) * | 2020-06-08 | 2021-07-09 | 珠海格力电器股份有限公司 | Heat exchanger filth blockage detection method and device |
| CN112325663B (en) * | 2020-08-21 | 2021-09-21 | 中国测试技术研究院电子研究所 | Intelligent combustor regulation and control method based on smoke discharge amount |
| CN113639411B (en) * | 2021-07-15 | 2023-03-21 | 青岛海尔空调器有限总公司 | Method for controlling external self-cleaning of outdoor heat exchanger |
| CN114659159A (en) * | 2022-03-28 | 2022-06-24 | 青岛海尔空调器有限总公司 | Method for judging whether indoor unit of air conditioner is dirty or not and air conditioner |
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