CN112665162B - Fixed-frequency air conditioner and control method and device of indoor fan of fixed-frequency air conditioner - Google Patents
Fixed-frequency air conditioner and control method and device of indoor fan of fixed-frequency air conditioner Download PDFInfo
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- CN112665162B CN112665162B CN201910976170.6A CN201910976170A CN112665162B CN 112665162 B CN112665162 B CN 112665162B CN 201910976170 A CN201910976170 A CN 201910976170A CN 112665162 B CN112665162 B CN 112665162B
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The application provides a fixed-frequency air conditioner and a control method and device of an indoor fan thereof, wherein the method comprises the following steps: acquiring the current temperature of the indoor heat exchanger; detecting and identifying that the current temperature is less than or equal to the shutdown protection temperature, and continuously operating for a preset time; according to the current temperature, the rotating speed of the indoor fan is controlled to be adjusted, so that the defrosting period of the air conditioner is effectively shortened, the stop time of the compressor is reduced, the refrigerating effect is improved, and the refrigerating experience of a user is guaranteed.
Description
Technical Field
The invention relates to the technical field of fixed-frequency air conditioners, in particular to a fixed-frequency air conditioner and a method and a device for controlling an indoor fan of the fixed-frequency air conditioner.
Background
In the related technology, a fixed-frequency air conditioner is generally adopted to refrigerate in a low-temperature environment, an indoor unit of the air conditioner is easy to frost, the indoor low-temperature protection function mainly controls the starting and stopping of a compressor through the temperature of an evaporator, and the rotating speed of an indoor fan is generally constant in the process of starting and stopping the compressor. Therefore, the problem in the related art is that if the indoor and outdoor temperatures are kept constant, the defrosting speed of the evaporator is constant, and the starting and stopping time of the compressor is also constant, which easily causes the defrosting period of the air conditioner to be too long, thereby seriously affecting the refrigeration effect of the air conditioner.
Disclosure of Invention
The present invention is directed to solving, at least in part, one of the technical problems in the related art.
Therefore, the first purpose of the invention is to provide a control method of an indoor fan of a fixed-frequency air conditioner, so that the defrosting period of the air conditioner is effectively reduced, the downtime of a compressor is reduced, the refrigeration effect is improved, and the refrigeration experience of a user is ensured.
The second purpose of the invention is to provide a control device of an indoor fan of a constant-frequency air conditioner.
The third purpose of the invention is to provide a fixed-frequency 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 method for controlling an indoor fan of a constant-frequency air conditioner, including the following steps: acquiring the current temperature of the indoor heat exchanger; detecting and identifying that the current temperature is less than or equal to the shutdown protection temperature, and continuously operating for a preset time; and controlling the rotating speed of the indoor fan to adjust according to the current temperature.
According to an embodiment of the present invention, the controlling the rotation speed of the indoor fan to adjust according to the type of the indoor fan includes: and controlling the rotating speed of the indoor fan to be in an inverse proportional relation with the current temperature.
According to an embodiment of the present invention, the controlling the rotation speed of the indoor fan to adjust according to the current temperature includes: identifying a type of the indoor fan; and adjusting the rotating speed of the indoor fan according to the type of the indoor fan and the current temperature.
According to an embodiment of the present invention, identifying the indoor fan as a direct current fan, and adjusting the rotation speed of the indoor fan according to the type of the indoor fan and the current temperature includes: acquiring a rotation speed correction coefficient according to the current temperature and the lowest operation temperature of the indoor heat exchanger; acquiring a target rotating speed of the indoor fan after adjustment according to the rotating speed correction coefficient, the lowest rotating speed of the indoor fan and the highest rotating speed of the indoor fan; and adjusting the indoor fan from the current rotating speed to the target rotating speed.
According to an embodiment of the present invention, the target rotation speed is obtained by using the following formula:
R＝R2-(Tz-Tmin)/Tmin*R1
wherein, R is the target rotation speed, R2 is the highest rotation speed of the indoor fan, R1 is the lowest rotation speed of the indoor fan, Tz is the current temperature, and Tmin is the lowest operating temperature of the indoor heat exchanger.
According to an embodiment of the present invention, identifying that the indoor fan is an ac fan, and adjusting the rotation speed of the indoor fan according to the type of the indoor fan and the current temperature includes: identifying a temperature interval in which the current temperature is located; acquiring a gear corresponding to the temperature interval according to the temperature interval; and controlling the rotating speed of the indoor fan according to the gear.
According to an embodiment of the present invention, before the obtaining of the type of the indoor fan and the current temperature of the indoor heat exchanger, the method further includes: detecting and identifying that the indoor environment temperature is greater than or equal to a first preset temperature; and controlling the refrigeration operation of the air conditioner.
According to an embodiment of the present invention, after the detecting and identifying that the current temperature is less than or equal to the shutdown protection temperature and continuously operating for a preset time, the method further includes: and controlling the compressor to stop.
According to an embodiment of the present invention, the control method further includes: detecting and identifying that the indoor environment temperature is greater than or equal to a second preset temperature; controlling the air conditioner to keep the current state to continue to operate; wherein the second preset temperature is greater than the first preset temperature.
According to the control device of the indoor fan of the fixed-frequency air conditioner, the rotating speed of the indoor fan can be dynamically adjusted according to the current temperature of the indoor heat exchanger, namely, the defrosting speed of the indoor heat exchanger is increased by increasing the rotating speed of the indoor fan when the current temperature of the indoor heat exchanger is lower, the downtime of a compressor is effectively reduced, the refrigerating effect is improved, and the refrigerating experience of a user is improved.
In order to achieve the above object, a second embodiment of the present invention provides a control device for an indoor fan of a constant-frequency air conditioner, including: the acquisition module is used for acquiring the current temperature of the indoor heat exchanger; the detection module is used for detecting and identifying that the current temperature is less than or equal to the shutdown protection temperature and continuously operates for a preset time; and the control module is used for controlling the rotating speed of the indoor fan to be adjusted according to the current temperature.
In order to achieve the above object, a third embodiment of the present invention provides a fixed-frequency air conditioner, including the control device for an indoor fan of the fixed-frequency air conditioner.
In order to achieve the above object, a fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the method for controlling an indoor fan of a constant-frequency 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 method for controlling an indoor fan of a constant-frequency air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for controlling an indoor fan of a constant-frequency air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for controlling an indoor fan of a constant-frequency air conditioner according to another embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a method for controlling an indoor fan of a constant frequency air conditioner according to another embodiment of the present invention;
fig. 5 is a flowchart illustrating a method for controlling an indoor fan of a constant-frequency air conditioner according to another embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a method for controlling an indoor fan of a constant frequency air conditioner according to still another embodiment of the present invention;
FIG. 7 is a flowchart illustrating a method for controlling an indoor fan of a constant frequency air conditioner according to an embodiment of the present invention;
fig. 8 is a flowchart of a method for controlling an indoor fan of a constant-frequency air conditioner according to still another embodiment of the present invention;
fig. 9 is a flowchart illustrating a method for controlling an indoor fan of a constant frequency air conditioner according to still another embodiment of the present invention;
FIG. 10 is a block diagram of a control device for an indoor fan of a constant-frequency air conditioner according to an embodiment of the present invention;
fig. 11 is a block diagram of a fixed-frequency 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 following describes a fixed-frequency air conditioner and a method and an apparatus for controlling an indoor fan thereof according to an embodiment of the present invention with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method for controlling an indoor fan of a fixed-frequency air conditioner according to an embodiment of the present invention. As shown in fig. 1, the method for controlling an indoor fan of a fixed-frequency air conditioner according to an embodiment of the present invention includes the following steps:
s101: and acquiring the current temperature of the indoor heat exchanger.
Wherein, the current temperature of indoor heat exchanger can be the temperature in indoor heat exchanger middle part, promptly, can gather the current temperature of indoor heat exchanger in real time with the inside of temperature sensor setting and indoor heat exchanger.
S102: and detecting and identifying that the current temperature is less than or equal to the shutdown protection temperature, and continuously operating for a preset time.
It should be understood that the air conditioner is provided with a shutdown protection temperature when the air conditioner is operated in a cooling state at a low temperature, and when the current temperature of the indoor heat exchanger is less than or equal to the shutdown protection temperature and the air conditioner is continuously operated for a preset time, the compressor is shut down for shutdown protection.
S103: and controlling the rotating speed of the indoor fan to adjust according to the current temperature.
Wherein, the rotational speed of the fan in the control room is in inverse proportion relation with the current temperature.
From this, this application can carry out dynamic adjustment through the rotational speed according to indoor heat exchanger's current temperature to indoor fan, promptly, accelerates indoor heat exchanger's defrosting speed through the rotational speed that increases indoor fan when indoor heat exchanger's current temperature is lower, effectively reduces the down time of compressor, improves and improves refrigeration effect, promotes user's refrigeration and experiences.
Specifically, as shown in fig. 2, controlling the rotation speed of the indoor fan to adjust according to the current temperature may include:
s201: and identifying the type of the indoor fan.
S202: and adjusting the rotating speed of the indoor fan according to the type and the current temperature of the indoor fan.
According to an embodiment of the present invention, identifying the indoor fan as a direct current fan, as shown in fig. 3 and 4, adjusting the rotation speed of the indoor fan according to the type and the current temperature of the indoor fan may include:
s301: and acquiring a rotating speed correction coefficient according to the current temperature and the lowest operating temperature of the indoor heat exchanger.
S302: and acquiring the target rotating speed of the indoor fan after adjustment according to the rotating speed correction coefficient, the lowest rotating speed of the indoor fan and the highest rotating speed of the indoor fan.
S303: and adjusting the indoor fan from the current rotating speed to the target rotating speed.
Specifically, the target rotation speed may be obtained by using the following formula:
R＝R2-(Tz-Tmin)/Tmin*R1
wherein, R is the target rotating speed, R2 is the highest rotating speed of the indoor fan, R1 is the lowest rotating speed of the indoor fan, Tz is the current temperature, and Tmin is the lowest operating temperature of the indoor heat exchanger.
From this, when indoor fan is direct current fan, can adjust the rotational speed of indoor fan according to indoor heat exchanger's current temperature in real time, adopt great fan rotational speed when indoor heat exchanger temperature is lower, keep cryogenic effect when blowing away the frost crystal, along with the rising of indoor heat exchanger's temperature reduces the rotational speed of fan gradually, avoids influencing refrigeration effect.
According to another embodiment of the present invention, identifying the indoor fan as an ac fan, as shown in fig. 5 and 6, adjusting the rotation speed of the indoor fan according to the type of the indoor fan and the current temperature may include:
s501: a temperature interval in which the current temperature is located is identified.
S502: and acquiring a gear corresponding to the temperature interval according to the temperature interval.
S503: and controlling the rotating speed of the indoor fan according to the gears.
Specifically, the operating temperature of the indoor heat exchanger can be divided into a plurality of temperature intervals, the operating gear of the alternating-current fan corresponding to each interval is determined, then, in the shutdown process of the compressor, the current temperature of the indoor heat exchanger is obtained in real time, the temperature interval where the current temperature is located is determined, the rotating speed of the indoor fan is controlled according to the gear corresponding to the temperature interval, and therefore the rotating speed of the alternating-current fan is adjusted.
For example, the operating temperature of the indoor heat exchanger may be divided into four temperature intervals, such as [ Tmin, T1], (T1, T2], (T2, T3], (T3, Tmax ], wherein the ac fan is controlled to be turned on in a strong gear when the current temperature Tz is [ Tmin, T1], the ac fan is controlled to be turned on in a high gear when the current temperature Tz is (T1, T2), the ac fan is controlled to be turned on in a medium gear when the current temperature Tz is (T2, T3), and the ac fan is controlled to be turned on in a low gear when the current temperature Tz is (T3, Tmax).
According to an embodiment of the present invention, as shown in fig. 7, the control method includes the steps of:
s701: the air conditioner operates in a refrigerating mode.
S702: and acquiring the current temperature Tz of the indoor heat exchanger.
S703: and judging whether the current temperature Tz is less than or equal to the shutdown protection temperature Ta or not, and continuously operating for a preset time tmin.
If yes, controlling the compressor to stop, and executing step S704; if not, return to step S703.
S704: it is determined whether the current temperature Tz is at [ Tmin, T1 ].
If yes, controlling the alternating current fan to start a powerful gear; if not, step S705 is performed.
S705: it is judged whether the current temperature Tz is at (T1, T2).
If so, controlling the alternating current fan to start a high wind gear; if not, step S706 is performed.
S706: it is judged whether the current temperature Tz is at (T2, T3).
If yes, controlling the alternating current fan to start a middle wind gear; if not, controlling the alternating current fan to start a low wind gear.
It should be understood that the dc fan may also be controlled by the ac fan to adjust the speed.
From this, when indoor fan is the alternating current fan, can adjust the gear of indoor fan according to the temperature interval that the current temperature of indoor heat exchanger is located in real time, adopt the great gear of wind speed when indoor heat exchanger temperature is lower, keep cryogenic effect when blowing away the frost crystal, along with the rising of indoor heat exchanger's temperature reduces the gear of fan gradually, avoids influencing refrigeration effect.
Further, before obtaining the type of the indoor fan and the current temperature of the indoor heat exchanger, as shown in fig. 8, the method further includes:
s801: and detecting and identifying that the indoor environment temperature is greater than or equal to a first preset temperature.
S802: and controlling the refrigeration operation of the air conditioner.
It should be understood that, because the air conditioner operates in a low-temperature environment, the air conditioner is controlled to be incapable of performing a cooling operation when the indoor ambient temperature is too low, that is, when the indoor ambient temperature is less than the first preset temperature, the air conditioner is incapable of starting the cooling operation, so as to ensure the operation safety of the air conditioner.
Further, as shown in fig. 9, the method further includes:
s901: and detecting and identifying that the indoor environment temperature is greater than or equal to a second preset temperature.
S902: and controlling the air conditioner to keep the current state to continuously operate.
Wherein the second preset temperature is greater than the first preset temperature.
That is to say, when the indoor ambient temperature is greater than or equal to the second preset temperature, it indicates that the current indoor temperature is much higher than the target temperature required to be cooled, and therefore, the air conditioner needs to be controlled to keep the current state to continue cooling operation, so as to reduce the indoor ambient temperature as soon as possible, and achieve the purpose of cooling.
To sum up, this application can carry out dynamic adjustment through the current temperature according to indoor heat exchanger to the rotational speed of indoor fan, promptly, accelerates indoor heat exchanger's defrosting speed through the rotational speed that increases indoor fan when the current temperature of indoor heat exchanger is lower, effectively reduces the down time of compressor, improves and improves refrigeration effect, promotes user's refrigeration and experiences.
In order to realize the embodiment, the invention further provides a control device of the indoor fan of the constant-frequency air conditioner.
Fig. 10 is a block diagram of a control device for an indoor fan of a constant-frequency air conditioner according to an embodiment of the present invention. As shown in fig. 10, the control device 100 for the indoor fan of the constant-frequency air conditioner includes: an acquisition module 10, a detection module 20 and a control module 30.
The obtaining module 10 is configured to obtain a current temperature of the indoor heat exchanger; the detection module 20 is used for detecting and identifying that the current temperature is less than or equal to the shutdown protection temperature and continuously operates for a preset time; the control module 30 is used for controlling the rotating speed of the indoor fan to be adjusted according to the current temperature.
Further, the control module 30 is further configured to: the rotating speed of the fan in the control room is in inverse proportion to the current temperature.
Further, the control module 30 is further configured to: identifying the type of the indoor fan; and adjusting the rotating speed of the indoor fan according to the type and the current temperature of the indoor fan.
Further, the control module 30 is further configured to identify the indoor fan as a dc fan: acquiring a rotation speed correction coefficient according to the current temperature and the lowest operation temperature of the indoor heat exchanger; acquiring a target rotating speed adjusted by the indoor fan according to the rotating speed correction coefficient, the lowest rotating speed of the indoor fan and the highest rotating speed of the indoor fan; and adjusting the indoor fan from the current rotating speed to the target rotating speed.
Further, the target rotation speed is obtained by adopting the following formula:
R＝R2-(Tz-Tmin)/Tmin*R1
wherein, R is the target rotating speed, R2 is the highest rotating speed of the indoor fan, R1 is the lowest rotating speed of the indoor fan, Tz is the current temperature, and Tmin is the lowest operating temperature of the indoor heat exchanger.
Further, the control module 30 is further configured to identify the indoor fan as an ac fan: identifying a temperature interval in which the current temperature is; acquiring a gear corresponding to the temperature interval according to the temperature interval; and controlling the rotating speed of the indoor fan according to the gears.
Further, the control module 30 is further configured to: before the type of an indoor fan and the current temperature of an indoor heat exchanger are obtained, detecting and identifying that the indoor environment temperature is greater than or equal to a first preset temperature; and controlling the refrigeration operation of the air conditioner.
Further, the control module 30 is further configured to: and after detecting and identifying that the current temperature is less than or equal to the shutdown protection temperature and continuously operating for a preset time, controlling the compressor to be shut down.
Further, the control module 30 is further configured to: detecting and identifying that the indoor environment temperature is greater than or equal to a second preset temperature; controlling the air conditioner to keep running continuously in the current state;
it should be noted that the explanation of the foregoing embodiment of the method for controlling an indoor fan of a constant-frequency air conditioner is also applicable to the control device of an indoor fan of a constant-frequency air conditioner of this embodiment, and details are not repeated here.
In order to implement the above embodiment, the present invention further provides a fixed-frequency air conditioner, as shown in fig. 11, the fixed-frequency air conditioner 200 includes the aforementioned control device for the indoor fan of the fixed-frequency air conditioner.
In order to implement the above embodiments, the present invention also provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the aforementioned control method of an indoor fan of a fixed-frequency air conditioner.
In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means 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.
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 to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are well known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A control method of an indoor fan of a fixed-frequency air conditioner is characterized by comprising the following steps:
acquiring the current temperature of the indoor heat exchanger;
detecting and identifying that the current temperature is less than or equal to the shutdown protection temperature, and continuously operating for a preset time;
controlling the rotating speed of the indoor fan to adjust according to the current temperature;
according to the current temperature, the rotating speed of the indoor fan is controlled to be adjusted, and the method comprises the following steps:
identifying a type of the indoor fan;
adjusting the rotating speed of the indoor fan according to the type of the indoor fan and the current temperature;
the indoor fan is identified to be a direct current fan, and the rotating speed of the indoor fan is adjusted according to the type of the indoor fan and the current temperature, and the method comprises the following steps:
acquiring a rotation speed correction coefficient according to the current temperature and the lowest operation temperature of the indoor heat exchanger;
acquiring a target rotating speed of the indoor fan after adjustment according to the rotating speed correction coefficient, the lowest rotating speed of the indoor fan and the highest rotating speed of the indoor fan;
adjusting the indoor fan from the current rotating speed to the target rotating speed;
the indoor fan is identified to be an alternating current fan, and the rotating speed of the indoor fan is adjusted according to the type of the indoor fan and the current temperature, and the method comprises the following steps:
identifying a temperature interval in which the current temperature is located;
acquiring a gear corresponding to the temperature interval according to the temperature interval;
and controlling the rotating speed of the indoor fan according to the gears.
2. The control method according to claim 1, wherein the controlling the rotation speed of the indoor fan to be adjusted according to the current temperature includes:
and controlling the rotating speed of the indoor fan to be in an inverse proportional relation with the current temperature.
3. The control method according to claim 1, characterized in that the target rotation speed is obtained using the following formula:
R＝R2-(Tz-Tmin)/Tmin*R1
wherein, R is the target rotation speed, R2 is the highest rotation speed of the indoor fan, R1 is the lowest rotation speed of the indoor fan, Tz is the current temperature, and Tmin is the lowest operating temperature of the indoor heat exchanger.
4. The control method according to claim 1, further comprising, before identifying the type of the indoor fan and acquiring the current temperature of the indoor heat exchanger:
detecting and identifying that the indoor environment temperature is greater than or equal to a first preset temperature;
and controlling the refrigeration operation of the air conditioner.
5. The control method according to claim 4, characterized by further comprising, after said detecting and identifying that the current temperature is less than or equal to a shutdown protection temperature and continuously operating for a preset time:
and controlling the compressor to stop.
6. The control method according to claim 4, characterized by further comprising:
detecting and identifying that the indoor environment temperature is greater than or equal to a second preset temperature;
controlling the air conditioner to keep the current state to continuously run;
wherein the second preset temperature is greater than the first preset temperature.
7. The utility model provides a controlling means of indoor fan of fixed frequency air conditioner which characterized in that includes:
the acquisition module is used for acquiring the current temperature of the indoor heat exchanger;
the detection module is used for detecting and identifying that the current temperature is less than or equal to the shutdown protection temperature and continuously operates for a preset time;
the control module is used for controlling the rotating speed of the indoor fan to be adjusted according to the current temperature;
the control module is further configured to: identifying the type of the indoor fan; adjusting the rotating speed of the indoor fan according to the type and the current temperature of the indoor fan;
the control module is further used for acquiring a rotating speed correction coefficient according to the current temperature and the lowest operating temperature of the indoor heat exchanger when the indoor fan is identified to be a direct-current fan; acquiring a target rotating speed of the indoor fan after adjustment according to the rotating speed correction coefficient, the lowest rotating speed of the indoor fan and the highest rotating speed of the indoor fan; adjusting the indoor fan from the current rotating speed to the target rotating speed;
the control module is further used for identifying a temperature interval where the current temperature is when the indoor fan is identified to be the alternating current fan; acquiring a gear corresponding to the temperature interval according to the temperature interval; and controlling the rotating speed of the indoor fan according to the gears.
8. A constant-frequency air conditioner characterized by comprising the control device of the indoor fan of the constant-frequency air conditioner according to claim 7.
9. A computer-readable storage medium on which a computer program is stored, the program, when executed by a processor, implementing a method of controlling a fixed-frequency air conditioning indoor fan according to any one of claims 1 to 6.
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| CN113944998A (en) * | 2021-10-27 | 2022-01-18 | 奥普家居股份有限公司 | Air conditioner control method, air conditioner device, and computer-readable storage medium |
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| CN107631440A (en) * | 2017-11-10 | 2018-01-26 | 广东美的制冷设备有限公司 | Control method, control system, computer-readable recording medium and mobile air conditioner |
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| JPS62202950A (en) * | 1986-03-03 | 1987-09-07 | Daikin Ind Ltd | Indoor fan control device for air conditioner |
| JP2006138580A (en) * | 2004-11-15 | 2006-06-01 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN101256021A (en) * | 2007-09-27 | 2008-09-03 | 宁波奥克斯空调有限公司 | Control method for air conditioner capable of low-temperature refrigeration |
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| CN104501350A (en) * | 2014-11-17 | 2015-04-08 | 广东美的制冷设备有限公司 | Air conditioner control method and air conditioner |
| CN104596036A (en) * | 2015-01-12 | 2015-05-06 | 广东美的制冷设备有限公司 | Anti-freezing control method and device |
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