CN110617606B - Air conditioner and control method and system thereof - Google Patents
Air conditioner and control method and system thereof Download PDFInfo
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- CN110617606B CN110617606B CN201910898019.5A CN201910898019A CN110617606B CN 110617606 B CN110617606 B CN 110617606B CN 201910898019 A CN201910898019 A CN 201910898019A CN 110617606 B CN110617606 B CN 110617606B
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- compressor
- air conditioner
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- overload protection
- temperature
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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
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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
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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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
Abstract
The invention discloses an air conditioner and a control method and a control system thereof, wherein the method comprises the following steps: detecting the working current of a compressor and the temperature of the compressor after the air conditioner operates; and if the working current is between the preset judgment current and the preset overload protection current and the temperature of the compressor reaches the preset overload protection temperature, carrying out overload protection on the compressor. The control method can effectively solve the problem that the compressor cannot be protected under the conditions of low current and high temperature of the air conditioner, thereby improving the reliability of the stable operation of the air conditioner under the abnormal conditions of refrigerant leakage, dirty blockage of a heat exchanger and the like and prolonging the service life of the air conditioner.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to an air conditioner control method, an air conditioner control system and an air conditioner.
Background
With the development of air conditioning technology, the use range of the air conditioner is gradually enlarged, and the requirement on the reliability of the compressor is higher and higher. In the related technology, the compressor judges whether the air conditioner meets the operation condition only through the overload protector of the compressor, and the mode is limited to the state of the air conditioner, wherein the higher the temperature is, the larger the current is, the more the operation state of the air conditioner approaches to the protection area of the compressor, the effective protection can not be carried out aiming at the independent parameters, especially aiming at some special conditions such as refrigerant leakage of the system, dirty blockage of a heat exchanger and the like, the protection is not easy to occur, and if the protection current or the protection temperature is independently regulated and controlled, the operation range of the air conditioner can be influenced.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, a first object of the present invention is to provide a control method for an air conditioner, which can effectively solve the problem that the compressor cannot be protected under the low-current and high-temperature working conditions of the air conditioner, thereby improving the reliability of the air conditioner in stable operation under the abnormal conditions of refrigerant leakage, dirty blockage of a heat exchanger, etc., and prolonging the service life of the air conditioner.
A second object of the present invention is to provide a control system of an air conditioner.
A third object of the present invention is to provide an air conditioner.
A fourth object of the invention is to propose a computer-readable storage medium.
In order to achieve the above object, a first embodiment of the present invention provides a control method of an air conditioner, including the following steps: detecting the working current of a compressor and the temperature of the compressor after the air conditioner operates; judging whether the working current is between a preset judgment current and a preset overload protection current or not, wherein the judgment current is smaller than the overload protection current; if so, judging whether the temperature of the compressor reaches a preset overload protection temperature or not; and if the preset overload protection temperature is reached, carrying out overload protection on the compressor.
According to the control method of the air conditioner, after the air conditioner is powered on to operate, the working current and the temperature of the compressor are detected, when the working current is between the preset judgment current and the preset overload protection current, whether the temperature of the compressor reaches the preset overload protection temperature or not is judged, and if the temperature of the compressor reaches the preset overload protection temperature, the compressor is subjected to overload protection. Therefore, the method can effectively solve the problem that the compressor cannot be protected under the working conditions of low current and high temperature of the air conditioner, thereby improving the reliability of the stable operation of the air conditioner under the abnormal conditions of refrigerant leakage, dirty and blocked heat exchanger and the like and prolonging the service life of the air conditioner.
In addition, the control method of the air conditioner proposed according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the overload protection of the compressor includes: reducing an operating frequency of the compressor; or controlling the compressor to stop.
According to an embodiment of the present invention, the method for controlling an air conditioner further includes: and if the working current is greater than the preset overload protection current and the temperature of the compressor is greater than the preset overload protection temperature, carrying out overload protection on the compressor.
According to one embodiment of the present invention, the preset overload protection temperature is equal to or greater than 100 ℃ and equal to or less than 140 ℃.
In order to achieve the above object, a second aspect of the present invention provides a control system for an air conditioner, including: the detection module is used for detecting the working current of the compressor and the temperature of the compressor after the air conditioner operates; the judging module is used for judging whether the working current is between a preset judging current and an overload protection current or not, and judging whether the temperature of the compressor reaches a preset overload protection temperature or not when the working current is between the preset judging current and the overload protection current, wherein the preset judging current is smaller than the preset overload protection current; and the overload protection control module is used for carrying out overload protection on the compressor when the judging module judges that the temperature of the compressor reaches the overload protection temperature.
According to the control system of the air conditioner, after the air conditioner runs, the detection module detects the working current and the temperature of the compressor after the air conditioner runs, the judgment module judges whether the working current is between the preset judgment current and the preset overload protection current, if so, the judgment module judges whether the temperature of the compressor reaches the preset overload protection temperature, and when the temperature of the compressor reaches the preset overload protection temperature, the overload protection control module carries out overload protection on the compressor. Therefore, the system can effectively solve the problem that the compressor cannot be protected under the working conditions of low current and high temperature of the air conditioner, so that the reliability of stable operation of the air conditioner under the abnormal conditions of refrigerant leakage, dirty and blocked heat exchanger and the like is improved, and the service life of the air conditioner is prolonged.
In addition, the control system of the air conditioner proposed according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the present invention, the overload protection control module is configured to reduce an operating frequency of the compressor or control the compressor to be stopped.
According to an embodiment of the present invention, the overload protection control module is further configured to perform overload protection on the compressor when the working current is greater than the preset overload protection current and the compressor temperature is greater than the preset overload protection temperature.
According to one embodiment of the invention, the overload protection temperature of the control system is greater than or equal to 100 ℃ and less than or equal to 140 ℃.
In order to achieve the above object, a third embodiment of the present invention provides an air conditioner, including a memory, a processor, and a control program of the air conditioner, which is stored in the memory and can be run on the processor, and when the processor executes the control program of the air conditioner, the control method of the air conditioner is implemented.
According to the air conditioner provided by the embodiment of the invention, by executing the control method of the air conditioner, the problem that the compressor cannot be protected under the working conditions of low current and high temperature of the air conditioner can be effectively solved, so that the reliability of stable operation of the air conditioner under the abnormal conditions of refrigerant leakage, dirty blockage of a heat exchanger and the like is improved, and the service life of the air conditioner is prolonged.
To achieve the above object, a fourth aspect of the present invention provides a computer-readable storage medium having stored thereon a control program of an air conditioner, the detection program of the air conditioner being executed by a processor to implement the control method of the air conditioner described above.
The computer readable storage medium of the embodiment of the invention can effectively solve the problem that the compressor cannot be protected under the working conditions of low current and high temperature of the air conditioner by executing the control method of the air conditioner, thereby improving the reliability of the stable operation of the air conditioner under the abnormal conditions of refrigerant leakage, dirty blockage of a heat exchanger and the like and prolonging the service life of the air conditioner.
Additional aspects and advantages of the invention 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 invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention 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 of a control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of an air conditioner control method according to one specific example of the present invention;
fig. 3 is a block diagram of a control system of an air conditioner according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, 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 illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The present application is made based on the recognition and study of the following problems by the inventors:
in the related art, in the process of operating the air conditioner, whether the condition of shutdown protection is met is judged only by a single overload protector of the compressor, for example, the judgment is carried out according to parameters such as the temperature and the current of the compressor. And adopt single overload protection ware to be subject to the running state of air conditioner, for example, reduce protection current alone or reduce protection temperature, can influence the operating range of air conditioner, and then influence user's comfort and experience to some special cases such as system leaks refrigerant, heat exchanger filth are stifled, are difficult to appear compressor shutdown protection.
Therefore, the invention adopts a mode of connecting two different protectors in series to optimize the protection area of the compressor, wherein the main protector is the initial protector of the compressor, the auxiliary protector enters a working state when the current is higher than a set value, and the auxiliary protector effectively protects the compressor against the possible low current and high temperature conditions, thereby ensuring the stable and durable work of the compressor on the premise of not influencing the running range of the air conditioner and prolonging the service life of the compressor.
The following describes a control method and system of an air conditioner and the air conditioner according to an embodiment of the invention with reference to the accompanying drawings.
Fig. 1 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention.
As shown in fig. 1, the method for controlling an air conditioner according to an embodiment of the present invention may include the following steps:
s1: and after the air conditioner runs, detecting the working current of the compressor and the temperature of the compressor. The air conditioner can automatically detect the working current of the air conditioner compressor and the temperature of the compressor when the air conditioner is started every time.
In a specific example, the working current of the compressor may be obtained by real-time detection of a corresponding current sensor, or may be obtained by calculation of a corresponding calculation formula according to parameters such as the operating power of the compressor. The compressor temperature can be detected in real time by a corresponding temperature sensor, for example, the compressor temperature can be detected by a temperature sensor provided at the outlet of the compressor.
S2: and judging whether the working current is between a preset judgment current and a preset overload protection current, wherein the judgment current is smaller than the overload protection current, the preset overload protection current can be a maximum allowable current threshold of the main protector, and the preset judgment current can be a maximum allowable current threshold of the auxiliary protector.
That is to say, after the air conditioner is operated, the relationship between the working current of the compressor and the maximum allowable current threshold of the main protector (preset overload protection current) is judged, when the working current is greater than the maximum allowable current threshold of the main protector, it is indicated that the current working current of the compressor is too large, the compressor enters a compressor overload protection area, and at this time, overload protection is performed on the compressor, for example, the compressor is controlled to stop, or the operating frequency of the compressor is reduced; otherwise, judging the relation between the working current of the compressor and the maximum allowable current threshold (preset judgment current) of the auxiliary protector, and executing a subsequent control strategy.
S3: if yes, judging whether the temperature of the compressor reaches the preset overload protection temperature or not. The preset overload protection temperature may be a maximum allowable temperature threshold of the auxiliary protector or a maximum allowable temperature threshold of the main protector, for example, the preset overload protection temperature is between [100 ℃, 140 ℃ ], that is, the preset overload protection temperature is greater than or equal to 100 ℃ and less than or equal to 140 ℃. It should be noted that the maximum allowable temperature threshold of the main protector and the maximum allowable temperature threshold of the auxiliary protector may be the same or different, and the present invention is described by taking the same as an example.
S4: and if the preset overload protection temperature is reached, carrying out overload protection on the compressor.
According to one embodiment of the present invention, an overload protection for a compressor includes: reducing the operating frequency of the compressor; alternatively, the compressor is controlled to stop.
That is, when the operating current of the compressor is smaller than the maximum allowable current threshold of the main protector and larger than the maximum allowable current threshold of the auxiliary protector, the relationship between the temperature of the compressor and the maximum allowable temperature threshold of the auxiliary protector is determined. When the temperature of the compressor exceeds the preset overload protection temperature, which indicates that the compressor is likely to be overloaded under the conditions of low current and high temperature, in order to prevent the compressor from being damaged due to the overload operation of the compressor and influence the reliability of the operation of the air conditioner, the overload protection is performed on the compressor, for example, the compressor is directly controlled to stop, or the operation frequency of the compressor is reduced, so that the operating current of the compressor and the temperature of the compressor are reduced.
According to an embodiment of the present invention, the method for controlling an air conditioner further includes: and if the working current is greater than the preset overload protection current and the temperature of the compressor is greater than the preset overload protection temperature, carrying out overload protection on the compressor.
That is, when the operating current of the compressor is greater than the maximum allowable current threshold of the main protector, and the temperature of the compressor is greater than the maximum allowable temperature threshold of the main protector, it indicates that the compressor is damaged due to the high-temperature operation of the compressor, and at this time, the compressor is subjected to overload protection, for example, the operating frequency of the compressor is reduced, or the compressor is controlled to be directly stopped.
Taking the operation frequency of the compressor as an example, after the operation frequency of the compressor is reduced, the operating current and the temperature of the compressor are obtained in real time, and the judgment is performed, if the operating current reduction value of the compressor is greater than the preset current (which can be calibrated according to the actual situation), and the temperature reduction value of the compressor is greater than the preset temperature (which can be calibrated according to the actual situation), the operation frequency of the compressor is increased (the operation frequency of the compressor in the last cycle can be increased, and the operation frequency of the compressor in the last cycle can also be increased to be less than the operation frequency of the compressor in the last cycle and greater than the operation frequency of the current compressor).
It should be noted that, when the temperature of the compressor is detected to be too high, the operation frequency of the compressor may be reduced first, and a user is prompted to check whether a foreign object or a dirty block exists at an air outlet of the compressor, and if the temperature of the compressor is too high due to the foreign object or the dirty block, the compressor may be directly controlled to operate according to the reduced operation frequency, and the determination is performed according to the control logic. In addition, after the compressor is controlled to stop, the compressor can be operated again after delaying for a period of time, and judgment is carried out according to the control logic.
According to the analysis, the auxiliary protector and the judgment logic thereof are added, the auxiliary protector effectively protects the compressor aiming at the low current and high temperature conditions which possibly occur, the compressor is ensured to work stably and durably on the premise of not influencing the operation range of the air conditioner, and the service life of the compressor is prolonged.
In order to make the present invention more apparent to those skilled in the art, fig. 2 is a flowchart of an air conditioner control method according to one embodiment of the present invention. As shown in fig. 2, the air conditioner control method may include the steps of:
s201, powering on the air conditioner and normally operating the compressor.
S202, acquiring the working current of the compressor and the temperature of the compressor in real time.
And S203, judging whether the working current and the temperature of the compressor exceed the set values of the main protector. If yes, go to step 204; if not, step 205 is performed.
Wherein, the main protector setting value includes: and respectively judging the magnitude relation between the working current of the compressor and the current set value of the main protector and the magnitude relation between the temperature of the compressor and the temperature set value of the main protector.
And S204, controlling the compressor to run down or jump to stop.
And S205, judging whether the working current of the compressor exceeds the current set value of the auxiliary protector. If so, go to step 206; if not, return to step 201.
And S206, judging whether the temperature of the compressor exceeds the temperature set value of the auxiliary protector. If yes, go to step 207; if not, return to step 201.
And S207, controlling the compressor to run down or jump to stop.
In summary, according to the control method of the air conditioner in the embodiment of the present invention, after the air conditioner is powered on to operate, the working current of the compressor and the temperature of the compressor are detected, when the working current is between the preset determination current and the preset overload protection current, whether the temperature of the compressor reaches the preset overload protection temperature is determined, and if the working current reaches the preset overload protection temperature, the compressor is subjected to overload protection. Therefore, the method can effectively solve the problem that the compressor cannot be protected under the working conditions of low current and high temperature of the air conditioner, thereby improving the reliability of the stable operation of the air conditioner under the abnormal conditions of refrigerant leakage, dirty and blocked heat exchanger and the like and prolonging the service life of the air conditioner.
Fig. 3 is a block schematic diagram of a detection system of an air conditioner according to an embodiment of the present invention.
As shown in fig. 3, the detection system 200 of the air conditioner according to the embodiment of the present invention may include: a detection module 210, a judgment module 220 and an overload protection control module 230.
The detection module 210 is configured to detect an operating current of the compressor and a temperature of the compressor after the air conditioner is operated. The judging module 220 is configured to judge whether the working current is between a preset judgment current and a preset overload protection current, and judge whether the temperature of the compressor reaches a preset overload protection temperature when the working current is between the preset judgment current and the preset overload protection current, where the judgment current is smaller than the overload protection current. The overload protection control module 230 is configured to perform overload protection on the compressor when the determining module 220 determines that the temperature of the compressor reaches the overload protection temperature.
According to one embodiment of the present invention, the overload protection control module 230 is used to reduce the operating frequency of the compressor or to control the compressor to be shut down.
According to an embodiment of the present invention, the overload protection control module 230 is further configured to overload protect the compressor when the operating current is greater than the preset overload protection current and the compressor temperature is greater than the preset overload protection temperature.
According to one embodiment of the invention, the overload protection temperature is a preset overload protection temperature.
It should be noted that, for details that are not disclosed in the control system of the air conditioner in the embodiment of the present invention, please refer to details that are disclosed in the control method of the air conditioner in the embodiment of the present invention, and detailed description thereof is omitted here.
According to the control system of the air conditioner, after the air conditioner runs, the detection module detects the working current and the temperature of the compressor after the air conditioner runs, the judgment module judges whether the working current is between the preset judgment current and the preset overload protection current, if so, the judgment module judges whether the temperature of the compressor reaches the preset overload protection temperature, and when the temperature of the compressor reaches the preset overload protection temperature, the overload protection control module carries out overload protection on the compressor. Therefore, the system can effectively solve the problem that the compressor cannot be protected under the working conditions of low current and high temperature of the air conditioner, so that the reliability of stable operation of the air conditioner under the abnormal conditions of refrigerant leakage, dirty and blocked heat exchanger and the like is improved, and the service life of the air conditioner is prolonged.
In addition, the invention provides an air conditioner, which comprises a memory, a processor and a control program of the air conditioner, wherein the control program of the air conditioner is stored on the memory and can run on the processor, and when the processor executes the control program of the air conditioner, the control method of the air conditioner is realized.
According to the air conditioner provided by the embodiment of the invention, by executing the control method of the air conditioner, the problem that the compressor cannot be protected under the working conditions of low current and high temperature of the air conditioner can be effectively solved, so that the reliability of stable operation of the air conditioner under the abnormal conditions of refrigerant leakage, dirty blockage of a heat exchanger and the like is improved, and the service life of the air conditioner is prolonged.
Furthermore, an embodiment of the present invention also proposes a computer-readable storage medium on which a control program of an air conditioner is stored, the detection program of the air conditioner being executed by a processor to implement the control method of the air conditioner described above.
The computer readable storage medium of the embodiment of the invention can effectively solve the problem that the compressor cannot be protected under the working conditions of low current and high temperature of the air conditioner by executing the control method of the air conditioner, thereby improving the reliability of the stable operation of the air conditioner under the abnormal conditions of refrigerant leakage, dirty blockage of a heat exchanger and the like and prolonging the service life of the air conditioner.
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 + +, or the like, as well as 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).
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. 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 (10)
1. A control method of an air conditioner, characterized in that the air conditioner comprises a main protector and an auxiliary protector connected with the main protector in series, the control method comprises the following steps:
detecting the working current of a compressor and the temperature of the compressor after the air conditioner operates;
judging whether the working current is between a preset judgment current and a preset overload protection current, wherein the judgment current is smaller than the overload protection current, the preset overload protection current is the maximum allowable current threshold of the main protector, and the preset judgment current is the maximum allowable current threshold of the auxiliary protector;
if so, judging whether the temperature of the compressor reaches a preset overload protection temperature or not;
and if the preset overload protection temperature is reached, carrying out overload protection on the compressor.
2. The control method of an air conditioner according to claim 1, wherein the overload protection of the compressor includes:
reducing an operating frequency of the compressor; alternatively, the first and second electrodes may be,
and controlling the compressor to stop.
3. The control method of an air conditioner according to claim 1 or 2, further comprising:
and if the working current is greater than the preset overload protection current and the temperature of the compressor is greater than the preset overload protection temperature, carrying out overload protection on the compressor.
4. The control method of an air conditioner according to claim 1, wherein the preset overload protection temperature is 100 ℃ or more and 140 ℃ or less.
5. A control system for an air conditioner, the air conditioner including a main protector and an auxiliary protector connected in series with the main protector, the control system comprising:
the detection module is used for detecting the working current of the compressor and the temperature of the compressor after the air conditioner operates;
the judging module is used for judging whether the working current is between a preset judging current and a preset overload protection current or not, and judging whether the temperature of the compressor reaches a preset overload protection temperature or not when the working current is between the preset judging current and the preset overload protection current, wherein the judging current is smaller than the overload protection current; the preset overload protection current is the maximum allowable current threshold of the main protector, and the preset judgment current is the maximum allowable current threshold of the auxiliary protector;
and the overload protection control module is used for carrying out overload protection on the compressor when the judging module judges that the temperature of the compressor reaches the preset overload protection temperature.
6. The control system of an air conditioner according to claim 5, wherein the overload protection control module is configured to reduce an operating frequency of the compressor or control the compressor to be stopped.
7. The control system of claim 5 or 6, wherein the overload protection control module is further configured to overload protect the compressor when the operating current is greater than the preset overload protection current and the compressor temperature is greater than the preset overload protection temperature.
8. The control system of an air conditioner according to claim 5, wherein the overload protection temperature is 100 ℃ or more and 140 ℃ or less.
9. An air conditioner, comprising a memory, a processor and a control program of the air conditioner stored in the memory and operable on the processor, wherein the processor implements the control method of the air conditioner according to any one of claims 1 to 4 when executing the control program of the air conditioner.
10. A computer-readable storage medium on which a control program of an air conditioner is stored, characterized in that the control program of the air conditioner realizes the control method of the air conditioner according to any one of claims 1 to 4 when executed by a processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910898019.5A CN110617606B (en) | 2019-09-23 | 2019-09-23 | Air conditioner and control method and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910898019.5A CN110617606B (en) | 2019-09-23 | 2019-09-23 | Air conditioner and control method and system thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN110617606A CN110617606A (en) | 2019-12-27 |
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| CN113251593A (en) * | 2021-04-14 | 2021-08-13 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
| CN114234359B (en) * | 2021-11-09 | 2023-03-28 | 海信（广东）空调有限公司 | Air conditioner and refrigerant leakage detection method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06233589A (en) * | 1993-01-29 | 1994-08-19 | Hitachi Ltd | Revolution control system of air conditioner |
| JP3391135B2 (en) * | 1995-02-09 | 2003-03-31 | 松下電器産業株式会社 | Overload protection device for hermetic electric compressor |
| JP2007147220A (en) * | 2005-11-30 | 2007-06-14 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN101089505A (en) * | 2006-06-14 | 2007-12-19 | 三星电子株式会社 | Air conditioning and control method thereof |
| CN103312262A (en) * | 2012-03-15 | 2013-09-18 | 日立空调·家用电器株式会社 | Motor drive device, fluid compression system and air conditioner |
| JP2015035904A (en) * | 2013-08-09 | 2015-02-19 | 日立アプライアンス株式会社 | Overload protecting device with thermo-switch and refrigerant compressor |
| JP2015045487A (en) * | 2013-08-29 | 2015-03-12 | 三菱電機株式会社 | Air conditioner |
| CN106762586A (en) * | 2017-01-03 | 2017-05-31 | 安徽美芝制冷设备有限公司 | The overtemperature protection of frequency-changeable compressor controls circuit, frequency-changeable compressor system and refrigerator |
| CN109297134A (en) * | 2018-08-29 | 2019-02-01 | 珠海格力电器股份有限公司 | A kind of overload protection method of air-conditioning, device, storage medium and air-conditioning |
| CN109556231A (en) * | 2018-10-26 | 2019-04-02 | 珠海格力电器股份有限公司 | A kind of unit and its high voltage protective method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009210229A (en) * | 2008-03-06 | 2009-09-17 | Panasonic Corp | Air conditioner |
-
2019
- 2019-09-23 CN CN201910898019.5A patent/CN110617606B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06233589A (en) * | 1993-01-29 | 1994-08-19 | Hitachi Ltd | Revolution control system of air conditioner |
| JP3391135B2 (en) * | 1995-02-09 | 2003-03-31 | 松下電器産業株式会社 | Overload protection device for hermetic electric compressor |
| JP2007147220A (en) * | 2005-11-30 | 2007-06-14 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN101089505A (en) * | 2006-06-14 | 2007-12-19 | 三星电子株式会社 | Air conditioning and control method thereof |
| CN103312262A (en) * | 2012-03-15 | 2013-09-18 | 日立空调·家用电器株式会社 | Motor drive device, fluid compression system and air conditioner |
| JP2015035904A (en) * | 2013-08-09 | 2015-02-19 | 日立アプライアンス株式会社 | Overload protecting device with thermo-switch and refrigerant compressor |
| JP2015045487A (en) * | 2013-08-29 | 2015-03-12 | 三菱電機株式会社 | Air conditioner |
| CN106762586A (en) * | 2017-01-03 | 2017-05-31 | 安徽美芝制冷设备有限公司 | The overtemperature protection of frequency-changeable compressor controls circuit, frequency-changeable compressor system and refrigerator |
| CN109297134A (en) * | 2018-08-29 | 2019-02-01 | 珠海格力电器股份有限公司 | A kind of overload protection method of air-conditioning, device, storage medium and air-conditioning |
| CN109556231A (en) * | 2018-10-26 | 2019-04-02 | 珠海格力电器股份有限公司 | A kind of unit and its high voltage protective method |
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