CN113137734A - Air conditioner and control method for outdoor fan of air conditioner - Google Patents
Air conditioner and control method for outdoor fan of air conditioner Download PDFInfo
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- CN113137734A CN113137734A CN202110243367.6A CN202110243367A CN113137734A CN 113137734 A CN113137734 A CN 113137734A CN 202110243367 A CN202110243367 A CN 202110243367A CN 113137734 A CN113137734 A CN 113137734A
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000003507 refrigerant Substances 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/30—Velocity
- F24F2110/32—Velocity of the outside air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner and an air conditioner outdoor fan control method, wherein the air conditioner comprises a compressor, a condenser and a fan, wherein the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser; the outdoor fan is used for radiating the outdoor unit power module of the air conditioner; the temperature detection module is used for detecting the temperature of the outdoor unit power module; a controller configured to: after a compressor frequency reduction instruction is received, judging whether the compressor frequency reduction reason is temperature frequency limiting or not based on the temperature; if so, the frequency of the compressor is adjusted based on the current rotating speed of the outdoor fan, so that the experience of a user is guaranteed, and the service life of an outdoor unit power module is prolonged.
Description
Technical Field
The application relates to the field of air conditioner control, in particular to an air conditioner and an outdoor fan control method of the air conditioner.
Background
At present, with the improvement of the life quality of people, the requirement on an air conditioner is higher and higher, and whether the heating or refrigerating capacity of the air conditioner meets the requirement of a user directly determines the experience of the user.
In the prior art, the method for controlling the rotating speed of the fan of the outdoor unit of the air conditioner only controls the rotating speed of the fan through system parameters such as system pressure, suction and exhaust temperature and the like, and the control scheme has the following problems:
1. the outdoor air quantity requirement is small under the condition of low-temperature heating, but the whole machine load is large, the heating quantity is large, when the temperature rise of the outdoor machine power module reaches a preset value, the existing control logic carries out compressor frequency reduction to protect the outdoor machine power module, so that the low-temperature heating capacity is reduced, and the user experience is poor.
2. The heat exchange efficiency of the heat radiator is reduced due to the high temperature of the environment working condition under the high-temperature refrigeration condition, and the existing control logic performs compressor frequency reduction to protect the outdoor unit power module when the temperature of the outdoor unit power module reaches a set value, so that the refrigeration capacity is reduced, and the user experience is poor.
3. In both cases the air conditioner outdoor unit power module temperature is operating at a defined maximum temperature, resulting in a reduced life of the outdoor unit power module.
Therefore, how to guarantee the experience of the user and prolong the service life of the outdoor unit power module is a technical problem to be solved at present.
Disclosure of Invention
The invention provides an air conditioner, which is used for solving the technical problems that the experience of users cannot be guaranteed and the service life of an outdoor unit power module is reduced in the prior art, and comprises the following components:
the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser;
the outdoor fan is used for radiating the outdoor unit power module of the air conditioner;
the temperature detection module is used for detecting the temperature of the outdoor unit power module;
a controller configured to:
after a compressor frequency reduction instruction is received, judging whether the compressor frequency reduction reason is temperature frequency limiting or not based on the temperature;
and if so, adjusting the frequency of the compressor based on the current rotating speed of the outdoor fan.
In some embodiments, the controller is configured to:
and if not, reducing the frequency of the compressor.
In some embodiments, the controller is configured to:
judging whether the current rotating speed of the outdoor fan reaches a preset maximum rotating speed or not;
if yes, reducing the frequency of the compressor;
if not, the current rotating speed of the outdoor fan is increased by one gear and then the outdoor fan runs for a preset time, and after a compressor frequency reduction instruction is received, whether the compressor frequency reduction reason is temperature frequency limiting or not is judged again based on the temperature.
In some embodiments, the controller is configured to:
when the temperature is greater than or equal to a preset temperature threshold value, determining that the compressor frequency reduction reason is temperature frequency limiting;
and when the temperature is smaller than the preset temperature threshold value, determining that the compressor frequency reduction reason is not temperature frequency limiting.
Correspondingly, the invention also provides a control method of the outdoor fan of the air conditioner, the method is applied to the air conditioner comprising the compressor, the outdoor fan, the temperature detection module and the controller, and the method comprises the following steps:
after a compressor frequency reduction instruction is received, judging whether the compressor frequency reduction reason is temperature frequency limiting or not based on the temperature;
and if so, adjusting the frequency of the compressor based on the current rotating speed of the outdoor fan.
In some embodiments, the method further comprises:
and if not, reducing the frequency of the compressor.
In some embodiments, the frequency of the compressor is adjusted based on the current speed of the outdoor fan, specifically:
judging whether the current rotating speed of the outdoor fan reaches a preset maximum rotating speed or not;
if yes, reducing the frequency of the compressor;
if not, the current rotating speed of the outdoor fan is increased by one gear and then the outdoor fan runs for a preset time, and after a compressor frequency reduction instruction is received, whether the compressor frequency reduction reason is temperature frequency limiting or not is judged again based on the temperature.
In some embodiments, the determining whether the compressor down-conversion reason is temperature frequency limiting based on the temperature includes:
when the temperature is greater than or equal to a preset temperature threshold value, determining that the compressor frequency reduction reason is temperature frequency limiting;
and when the temperature is smaller than the preset temperature threshold value, determining that the compressor frequency reduction reason is not temperature frequency limiting.
Compared with the prior art, the method has the following beneficial effects:
the invention discloses an air conditioner and an air conditioner outdoor fan control method, wherein the air conditioner comprises a compressor, a condenser and a fan, wherein the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser; the outdoor fan is used for radiating the outdoor unit power module of the air conditioner; the temperature detection module is used for detecting the temperature of the outdoor unit power module; a controller configured to: after a compressor frequency reduction instruction is received, judging whether the compressor frequency reduction reason is temperature frequency limiting or not based on the temperature; if so, the frequency of the compressor is adjusted based on the current rotating speed of the outdoor fan, so that the experience of a user is guaranteed, and the service life of an outdoor unit power module is prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for controlling an outdoor fan of an air conditioner according to an embodiment of the present application;
fig. 2 is a flowchart illustrating a method for controlling an outdoor fan of an air conditioner according to another embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
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 application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.
To further describe aspects of the present application, in an example of the present application, the air conditioner includes:
the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser;
the outdoor fan is used for radiating the outdoor unit power module of the air conditioner;
the temperature detection module is used for detecting the temperature of the outdoor unit power module;
a controller configured to:
after a compressor frequency reduction instruction is received, judging whether the compressor frequency reduction reason is temperature frequency limiting or not based on the temperature;
and if so, adjusting the frequency of the compressor based on the current rotating speed of the outdoor fan.
In the embodiment of the application, the outdoor fan is used for dissipating heat of the outdoor unit power module of the air conditioner through exhaust air, the outdoor unit power module comprises an IPM module of an air conditioner, a silicon rectifier bridge and the like, the temperature detection module is used for detecting the temperature of the outdoor unit power module, when the temperature of the outdoor unit power module is too high, the temperature needs to be reduced for protection, the controller obtains the temperature of the outdoor unit power module and the rotating speed of the outdoor fan, judging whether to perform frequency reduction processing on the compressor according to the temperature of the outdoor unit power module and the rotating speed of the outdoor fan, optionally, the temperature detection module can detect the temperature of a plurality of outdoor unit power modules, and then the controller acquires the highest temperature, and controls the frequency of the compressor or the rotating speed of the outdoor fan by combining the highest temperature with the current rotating speed of the outdoor fan, so that each outdoor unit power module can be protected to the greatest extent.
To protect the outdoor unit power module and to ensure the user experience, in some embodiments, the controller is further configured to:
and if not, reducing the frequency of the compressor.
In this embodiment, the temperature of the outdoor unit power module and the rotating speed of the outdoor fan are obtained in real time, when the system sends a compressor frequency reduction instruction, whether frequency reduction is performed due to overhigh temperature is judged, if so, the frequency of the compressor is adjusted based on the current rotating speed of the outdoor fan, if not, the frequency of the compressor is reduced for heat dissipation, and the rotating speed of the outdoor fan is controlled to fully exert the heat dissipation capability of the fan on the heat sink to improve the heat dissipation capability of the module, improve user experience and prolong the service life of the module.
It should be noted that the above solution of the preferred embodiment is only one specific implementation solution proposed in the present application, and other methods for adjusting the frequency of the compressor based on the rotation speed of the outdoor fan are all within the protection scope of the present application.
To further protect the outdoor unit power module, in some embodiments, the controller is configured to:
judging whether the current rotating speed of the outdoor fan reaches a preset maximum rotating speed or not;
if yes, reducing the frequency of the compressor;
if not, the current rotating speed of the outdoor fan is increased by one gear and then the outdoor fan runs for a preset time, and after a compressor frequency reduction instruction is received, whether the compressor frequency reduction reason is temperature frequency limiting or not is judged again based on the temperature.
In the embodiment, the current rotating speed of the outdoor fan is obtained, whether the current rotating speed reaches the preset maximum rotating speed is judged, when the fan is at the maximum rotating speed, the heat dissipation cannot be accelerated by increasing the wind speed, and in order to protect the outdoor unit power module, the frequency of the compressor is reduced; if the current rotating speed of the outdoor fan does not reach the preset maximum rotating speed, and the rotating speed of the outdoor fan is not at the maximum gear at the moment, the current rotating speed of the outdoor fan is increased by one gear and then is operated for a preset time, the preset time is set to be 2 minutes, the heat dissipation is improved by increasing the wind speed through the increase of the gear, so that the refrigeration or heating requirement of a user is guaranteed, when the rotating speed of the fan is increased by one gear and is operated for the preset time, whether the compressor is used for frequency reduction is judged, if the compressor is used for frequency reduction is judged to be continued, whether the fan reaches the maximum rotating speed is judged, if the fan does not reach the maximum rotating speed, the fan is further increased in gear and is operated for the preset time, whether the frequency reduction reason of the compressor is temperature frequency limiting is judged again based on the temperature after the set maximum gear is reached, the circulation process is the real-time monitoring operation of the system.
It should be noted that the above solution of the preferred embodiment is only one specific implementation solution proposed in the present application, and other methods for adjusting the frequency of the compressor based on the current rotation speed of the outdoor fan are all within the protection scope of the present application.
To further protect the outdoor unit power module, in some embodiments, the controller is configured to:
when the temperature is greater than or equal to a preset temperature threshold value, determining that the compressor frequency reduction reason is temperature frequency limiting;
when the temperature is smaller than the preset temperature threshold value, determining that the compressor frequency reduction reason is not temperature frequency limiting
In this embodiment, after the temperature of the outdoor unit power module and the rotation speed of the outdoor fan are obtained, it is determined whether the temperature of the outdoor unit power module is greater than a preset temperature threshold, where the preset temperature threshold may be obtained through experiments, and represents a highest temperature that the outdoor unit power module can bear when working normally, and when the temperature is greater than the preset temperature threshold, it is determined that the compressor frequency reduction reason is temperature frequency limiting, so that the frequency of the compressor can be adjusted by using the rotation speed of the outdoor fan, and the outdoor unit power module can be ensured to work in a stable temperature range by controlling the rotation speed of the outdoor fan to optimize the heat dissipation capability of the air duct, so as to prolong the service life of the outdoor unit power module.
It should be noted that the above solution of the preferred embodiment is only one specific implementation solution proposed in the present application, and other methods for adjusting the frequency of the compressor based on the current rotation speed of the outdoor fan are all within the protection scope of the present application.
The invention discloses an air conditioner and an air conditioner outdoor fan control method, wherein the air conditioner comprises a compressor, a condenser and a fan, wherein the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser; the outdoor fan is used for radiating the outdoor unit power module of the air conditioner; the temperature detection module is used for detecting the temperature of the outdoor unit power module; a controller configured to: after a compressor frequency reduction instruction is received, judging whether the compressor frequency reduction reason is temperature frequency limiting or not based on the temperature; if so, the frequency of the compressor is adjusted based on the current rotating speed of the outdoor fan, so that the experience of a user is guaranteed, and the service life of an outdoor unit power module is prolonged.
In order to further illustrate the technical idea of the present invention, the present invention further provides a method for controlling an outdoor fan of an air conditioner, the method is applied to the air conditioner comprising a compressor, the outdoor fan, a temperature detection module and a controller, as shown in fig. 1, the method specifically comprises the following steps:
and S101, after receiving a compressor frequency reduction instruction, judging whether the compressor frequency reduction reason is temperature frequency limiting or not based on the temperature.
In the step, an outdoor fan is used for dissipating heat of an outdoor unit power module of the air conditioner through exhaust air, a temperature detection module is used for detecting the temperature of the outdoor unit power module, when the temperature of the outdoor unit power module is too high, cooling protection is needed, a controller obtains the highest temperature, the frequency of a compressor or the rotating speed of the outdoor fan is controlled according to the highest temperature and the current rotating speed of the outdoor fan, and after a compressor frequency reduction instruction is received, whether the compressor frequency reduction reason is temperature frequency limiting or not is judged based on the temperature of the outdoor unit power module.
In order to protect the outdoor unit power module and ensure the user experience, in some embodiments, it is determined whether the compressor down-conversion reason is temperature frequency limiting based on the temperature, specifically:
when the temperature is greater than or equal to a preset temperature threshold value, determining that the compressor frequency reduction reason is temperature frequency limiting;
and when the temperature is smaller than the preset temperature threshold value, determining that the compressor frequency reduction reason is not temperature frequency limiting.
Specifically, after the temperature of the outdoor unit power module and the rotating speed of the outdoor fan are obtained, whether the temperature of the outdoor unit power module is greater than a preset temperature threshold value or not is judged, the preset temperature threshold value can be obtained through experiments, the preset temperature threshold value represents the highest temperature which can be borne by the outdoor unit power module in normal work, when the temperature is greater than the preset temperature threshold value, the frequency limiting reason of the compressor is determined, the frequency of the compressor can be adjusted by using the rotating speed of the outdoor fan, the working temperature range of the outdoor unit power module is stable by controlling the rotating speed of the outdoor fan to optimize the heat dissipation capacity of an air channel, and the service life of the outdoor unit power module is prolonged; and when the temperature is smaller than the preset temperature threshold value, determining that the compressor frequency reduction reason is not temperature frequency limiting.
It should be noted that the above solution of the preferred embodiment is only one specific implementation solution proposed in the present application, and other methods for determining whether the compressor down-conversion reason is temperature frequency limiting based on the temperature all belong to the protection scope of the present application.
And S102, if so, adjusting the frequency of the compressor based on the current rotating speed of the outdoor fan.
In this step, after the temperature of the outdoor unit power module and the rotation speed of the outdoor fan are obtained, the frequency of the compressor or the rotation speed of the outdoor fan is controlled according to the temperature of the outdoor unit power module and the rotation speed of the outdoor fan.
To protect the outdoor unit power module and to guarantee the user experience, in some embodiments, the method further comprises:
and if not, reducing the frequency of the compressor.
Specifically, the temperature of the outdoor unit power module and the rotating speed of the outdoor fan are obtained in real time, when the system sends a compressor frequency reduction instruction, whether frequency limitation is carried out due to overhigh temperature or not is judged for the reason of the frequency reduction instruction, if so, the frequency of the compressor is adjusted based on the current rotating speed of the outdoor fan, if not, the frequency of the compressor is reduced, the heat dissipation capacity of the fan to a heat sink is fully exerted by controlling the rotating speed of the outdoor fan, and therefore the purposes of improving the heat dissipation of the module, improving user experience and prolonging the service life of the module are achieved.
It should be noted that the above solution of the preferred embodiment is only one specific implementation solution proposed in the present application, and other methods for determining whether the compressor down-conversion reason is temperature frequency limiting based on the temperature all belong to the protection scope of the present application.
To further protect the outdoor unit power module, in some embodiments, the frequency of the compressor is adjusted based on the current speed of the outdoor fan, specifically:
judging whether the current rotating speed of the outdoor fan reaches a preset maximum rotating speed or not;
if yes, reducing the frequency of the compressor;
if not, the current rotating speed of the outdoor fan is increased by one gear and then the outdoor fan runs for a preset time, and after a compressor frequency reduction instruction is received, whether the compressor frequency reduction reason is temperature frequency limiting or not is judged again based on the temperature.
Specifically, as shown in fig. 2, the method is a schematic flow chart of an outdoor fan control method of an air conditioner according to another embodiment of the present disclosure, and the method includes obtaining a temperature of an outdoor unit power module and a rotation speed of an outdoor fan in real time, when a system sends a compressor frequency reduction instruction, determining whether frequency reduction is performed due to an excessively high temperature, if so, adjusting a frequency of the compressor based on a current rotation speed of the outdoor fan, and if not, reducing the frequency of the compressor to perform heat dissipation. The method comprises the steps of obtaining the current rotating speed of an outdoor fan and judging whether the current rotating speed reaches a preset maximum rotating speed, when the fan is at the maximum rotating speed, the heat dissipation cannot be accelerated by increasing the wind speed, and in order to protect an outdoor unit power module, the frequency of a compressor is reduced; if the current rotating speed of the outdoor fan does not reach the preset maximum rotating speed, and the rotating speed of the outdoor fan is not at the maximum gear at the moment, the current rotating speed of the outdoor fan is increased by one gear and then is operated for a preset time, the preset time is set to be 2 minutes, the heat dissipation is improved by increasing the wind speed through the increase of the gear, so that the refrigeration or heating requirement of a user is guaranteed, when the rotating speed of the fan is increased by one gear and is operated for the preset time, whether the compressor is used for frequency reduction is judged, if the compressor is used for frequency reduction is judged to be continued, whether the fan reaches the maximum rotating speed is judged, if the fan does not reach the maximum rotating speed, the fan is further increased in gear and is operated for the preset time, whether the frequency reduction reason of the compressor is temperature frequency limiting is judged again based on the temperature after the set maximum gear is reached, the circulation process is the real-time monitoring operation of the system.
It should be noted that the above solution of the preferred embodiment is only one specific implementation solution proposed in the present application, and other methods for adjusting the frequency of the compressor based on the current rotation speed of the outdoor fan are all within the protection scope of the present application.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (8)
1. An air conditioner, comprising:
the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser;
the outdoor fan is used for radiating the outdoor unit power module of the air conditioner;
the temperature detection module is used for detecting the temperature of the outdoor unit power module;
a controller configured to:
after a compressor frequency reduction instruction is received, judging whether the compressor frequency reduction reason is temperature frequency limiting or not based on the temperature;
and if so, adjusting the frequency of the compressor based on the current rotating speed of the outdoor fan.
2. The air conditioner of claim 1, wherein the controller is further configured to:
and if not, reducing the frequency of the compressor.
3. The air conditioner of claim 1, wherein the controller is configured to:
judging whether the current rotating speed of the outdoor fan reaches a preset maximum rotating speed or not;
if yes, reducing the frequency of the compressor;
if not, the current rotating speed of the outdoor fan is increased by one gear and then the outdoor fan runs for a preset time, and after a compressor frequency reduction instruction is received, whether the compressor frequency reduction reason is temperature frequency limiting or not is judged again based on the temperature.
4. The air conditioner of claim 1, wherein the controller is configured to:
when the temperature is greater than or equal to a preset temperature threshold value, determining that the compressor frequency reduction reason is temperature frequency limiting;
and when the temperature is smaller than the preset temperature threshold value, determining that the compressor frequency reduction reason is not temperature frequency limiting.
5. A control method for an outdoor fan of an air conditioner is characterized in that the method is applied to the air conditioner comprising a compressor, the outdoor fan, a temperature detection module and a controller, and comprises the following steps:
after a compressor frequency reduction instruction is received, judging whether the compressor frequency reduction reason is temperature frequency limiting or not based on the temperature;
and if so, adjusting the frequency of the compressor based on the current rotating speed of the outdoor fan.
6. The method of claim 5, wherein the method further comprises:
and if not, reducing the frequency of the compressor.
7. The method according to claim 5, characterized in that the frequency of the compressor is adjusted based on the current speed of the outdoor fan, in particular:
judging whether the current rotating speed of the outdoor fan reaches a preset maximum rotating speed or not;
if yes, reducing the frequency of the compressor;
if not, the current rotating speed of the outdoor fan is increased by one gear and then the outdoor fan runs for a preset time, and after a compressor frequency reduction instruction is received, whether the compressor frequency reduction reason is temperature frequency limiting or not is judged again based on the temperature.
8. The method as claimed in claim 5, wherein the determining whether the compressor down-conversion reason is temperature frequency limiting based on the temperature is specifically:
when the temperature is greater than or equal to a preset temperature threshold value, determining that the compressor frequency reduction reason is temperature frequency limiting;
and when the temperature is smaller than the preset temperature threshold value, determining that the compressor frequency reduction reason is not temperature frequency limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110243367.6A CN113137734A (en) | 2021-03-05 | 2021-03-05 | Air conditioner and control method for outdoor fan of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110243367.6A CN113137734A (en) | 2021-03-05 | 2021-03-05 | Air conditioner and control method for outdoor fan of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113137734A true CN113137734A (en) | 2021-07-20 |
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| CN202110243367.6A Pending CN113137734A (en) | 2021-03-05 | 2021-03-05 | Air conditioner and control method for outdoor fan of air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865051A (en) * | 2021-09-30 | 2021-12-31 | 佛山市顺德区美的电子科技有限公司 | Control method of portable air conditioner, portable air conditioner and control device |
| CN113944978A (en) * | 2021-11-01 | 2022-01-18 | 宁波奥克斯电气股份有限公司 | Control method of air conditioner and air conditioner |
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| CN103052852A (en) * | 2011-06-29 | 2013-04-17 | 松下电器产业株式会社 | Cooling device and air conditioner with same |
| CN103968497A (en) * | 2013-01-30 | 2014-08-06 | 珠海格力电器股份有限公司 | Method and device for adjusting running frequency of air conditioner compressor and air conditioner |
| CN104633847A (en) * | 2014-12-30 | 2015-05-20 | 广东美的制冷设备有限公司 | Application method and device for air conditioner protection circuit |
| CN111878913A (en) * | 2020-07-02 | 2020-11-03 | 宁波奥克斯电气股份有限公司 | Variable frequency control method and device, air conditioner and storage medium |
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| JPH01131843A (en) * | 1987-11-13 | 1989-05-24 | Toshiba Corp | Air conditioner |
| CN103052852A (en) * | 2011-06-29 | 2013-04-17 | 松下电器产业株式会社 | Cooling device and air conditioner with same |
| CN103968497A (en) * | 2013-01-30 | 2014-08-06 | 珠海格力电器股份有限公司 | Method and device for adjusting running frequency of air conditioner compressor and air conditioner |
| CN104633847A (en) * | 2014-12-30 | 2015-05-20 | 广东美的制冷设备有限公司 | Application method and device for air conditioner protection circuit |
| CN111878913A (en) * | 2020-07-02 | 2020-11-03 | 宁波奥克斯电气股份有限公司 | Variable frequency control method and device, air conditioner and storage medium |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865051A (en) * | 2021-09-30 | 2021-12-31 | 佛山市顺德区美的电子科技有限公司 | Control method of portable air conditioner, portable air conditioner and control device |
| CN113944978A (en) * | 2021-11-01 | 2022-01-18 | 宁波奥克斯电气股份有限公司 | Control method of air conditioner and air conditioner |
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Address after: No.1, Hisense Road, Nancun Town, Pingdu City, Qingdao City, Shandong Province 266700 Applicant after: Hisense Air Conditioning Co.,Ltd. Address before: No.1, Hisense Road, Nancun Town, Pingdu City, Qingdao City, Shandong Province 266700 Applicant before: HISENSE (SHANDONG) AIR-CONDITIONING Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210720 |