CN114963412A - Air conditioner and snow accumulation preventing air conditioning system - Google Patents
Air conditioner and snow accumulation preventing air conditioning system Download PDFInfo
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- CN114963412A CN114963412A CN202210544171.5A CN202210544171A CN114963412A CN 114963412 A CN114963412 A CN 114963412A CN 202210544171 A CN202210544171 A CN 202210544171A CN 114963412 A CN114963412 A CN 114963412A
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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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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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
- F24F11/46—Improving electric energy efficiency or saving
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F2130/10—Weather information or forecasts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses an air conditioner and an anti-snow air conditioning system, which can acquire the current environment information of the area where an outdoor unit is positioned, the current environmental information comprises snow fall amount and air quantity, the running time and the rotating speed for controlling the outdoor fan to execute snow removing operation are generated according to the current snow fall amount and the air quantity, controlling the outdoor fan to execute snow removing operation according to the running time and the rotating speed, namely, only when the current environment information shows that snow falls, the air conditioner is started to carry out snow removing operation, compared with the operation of blowing snow regularly, based on the snow removing operation provided by the invention, the snow removing operation is started when snowfall exists, the energy consumption consumed by the regular snow blowing operation of the air conditioner can be reduced, the running time and the rotating speed of the outdoor fan can be dynamically adjusted according to the current snow-falling amount and the current air volume, so that the effects of effectively removing snow and not additionally increasing the snow removing operation energy consumption can be achieved under different snow-falling amounts and different air volumes.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and an anti-snow-accumulation air conditioning system.
Background
When the outdoor unit of the top air-out air conditioner is in a heating shutdown or standby state, if the outdoor unit encounters snowing weather, the outdoor unit which does not run can accumulate accumulated snow, when the outdoor unit is started, the accumulated snow can cause the running load of an outdoor fan to be increased, the performance and the reliability of the unit are influenced, and if the accumulated snow is accumulated on the heat exchanger, the heat exchange efficiency can be reduced.
In order to solve the problem of snow accumulation of the outdoor unit, some existing treatment methods such as installing a snow-proof cover above the outdoor unit not only increase the air conditioning cost, but also are not suitable for the outdoor unit of a top-outlet air conditioner; as another example, some air conditioning manufacturers may design program controls that blow snow regularly, which increases the standby power consumption of the air conditioning unit.
The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may contain prior art that does not constitute known technology to those of ordinary skill in the art.
Disclosure of Invention
The invention provides an air conditioner and a snow-accumulation-preventing air conditioning system, aiming at the problems that snow accumulation of an outdoor unit of the existing air conditioner affects the performance and reliability of a unit and reduces the heat exchange efficiency.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
in some embodiments of the present application, there is provided an air conditioner including:
an outdoor unit including an outdoor fan;
it is characterized by also comprising:
the outdoor environment monitoring part is used for acquiring the current environment information of the area where the outdoor unit is located; the current environment information comprises the snow fall amount and the air volume;
the control part is used for determining the running time and the rotating speed for controlling the outdoor fan to execute snow removing operation according to the snow falling amount and the air volume;
and the execution part is used for controlling the outdoor fan to execute snow removing operation according to the running time and the rotating speed.
In some embodiments of the present application, there is provided a snow protection air conditioning system comprising:
an air conditioner including an outdoor unit; the outdoor unit comprises an outdoor fan;
an outdoor environment monitoring part for acquiring the current environment information of the area where the outdoor unit is located; the current environment information comprises the snow fall amount and the air volume;
the snow accumulation prevention control platform is used for determining the running time and the rotating speed for controlling the outdoor fan to execute snow accumulation removing operation according to the snow accumulation amount and the air volume; generating an accumulated snow removing instruction according to the running duration and the rotating speed; sending the snow removing instruction to the air conditioner;
and the air conditioner receives and controls the outdoor fan to execute snow removing operation based on the snow removing instruction.
Compared with the prior art, the invention has the advantages and positive effects that: in the air conditioner and the snow accumulation prevention air conditioning system, the current environment information of the area where the outdoor unit is located is acquired, the current environmental information comprises snow fall amount and air quantity, the running time and the rotating speed for controlling the outdoor fan to execute snow removing operation are generated according to the current snow fall amount and the air quantity, controlling the outdoor fan to execute snow removing operation according to the running time and the rotating speed, namely, only when the current environment information shows that snow falls, the air conditioner is started to carry out snow removing operation, compared with the operation of blowing snow regularly, based on the snow removing operation provided by the invention, the snow removing operation is started when snowfall exists, the energy consumption consumed by the regular snow blowing operation of the air conditioner can be reduced, the running time and the rotating speed of the outdoor fan can be dynamically adjusted according to the current snow-falling amount and the current air volume, so that the effects of effectively removing snow and not additionally increasing the snow removing operation energy consumption can be achieved under different snow-falling amounts and different air volumes.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a functional structure diagram of an air conditioner according to the present invention;
FIG. 2 is a schematic view of the operation flow of the air conditioner to remove snow according to the present invention;
FIG. 3 is a schematic view of an operation flow of an air conditioner for removing snow according to a first embodiment of the present invention;
FIG. 4 is a schematic flow chart of the operation of the air conditioner to remove snow according to the second embodiment of the present invention;
FIG. 5 is a schematic view of the operation flow of the air conditioner for removing snow according to the third embodiment of the present invention;
FIG. 6 is a schematic diagram of a system architecture of the snow protection air conditioning system of the present invention;
FIG. 7 is a schematic flow chart of the snow removing operation performed by the snow protection air conditioning system according to the present invention;
FIG. 8 is a schematic flow chart showing the snow removing operation performed by the snow protection air conditioning system according to the fourth embodiment of the present invention;
fig. 9 is a schematic operation flow chart of the snow removing operation performed by the snow protection air conditioning system according to the fifth embodiment of the present invention;
fig. 10 is a flowchart illustrating an operation of the snow removing operation performed by the snow protection air conditioning system according to the sixth embodiment of the present invention.
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, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to 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 to implicitly indicate 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.
In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
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 to cool or heat an indoor space.
The low-temperature and low-pressure refrigerant enters the compressor, the compressor compresses the refrigerant gas in a high-temperature and high-pressure state, and the compressed refrigerant gas is discharged. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.
The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.
The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.
In combination with the above, this application provides an air conditioner, aims at guaranteeing air conditioning system performance and reliability simultaneously, implements the snow removal operation with low energy consumption high efficiency, guarantees that the off-premises station of air conditioner can normally start heating under the snowing weather.
Specifically, the air conditioner proposed by the present application includes, as shown in fig. 1: (snow removal is carried out according to the procedure shown in FIG. 2)
An outdoor unit, i.e., an outdoor unit of an air conditioner, includes a casing in which a compressor, an outdoor heat exchanger, and an outdoor fan 1 are disposed.
The outdoor environment monitoring unit 2 executes step S1: acquiring current environment information of an area where an outdoor unit is located; the current environmental information includes at least a snowfall amount and an air volume.
In some embodiments of the present invention, specific data of the snow fall amount and the air volume are acquired and applied, and in other embodiments of the present invention, after the specific data of the snow fall amount and the air volume are acquired, the snow fall amount and the air volume may be classified according to a data range, and classified data of the snow fall amount and the air volume may be applied.
The outdoor environment monitoring unit 2 is a device, a module or a system capable of obtaining real-time weather data of an area where an outdoor unit is located, such as an outdoor environment sensor, an internet weather forecast system, or the like.
The control unit 3 is configured to execute step S2: and determining the running time and the rotating speed for controlling the outdoor fan to execute the snow removing operation according to the snow falling amount and the air volume.
In the embodiment of the invention, the running time of snow removing operation and the rotating speed of the outdoor fan are determined by comprehensively considering the snow falling amount and the air volume.
The snow removing operation at least comprises controlling the outdoor fan to operate according to the set operation duration and the set rotation speed, and blowing off snow on the surface of the outdoor unit based on the operation of the outdoor fan to avoid accumulation.
An execution unit 4 for executing step S3: and controlling the outdoor fan to execute snow removing operation according to the running time and the rotating speed.
Based on the air conditioner provided by the invention, the air conditioner is started to implement snow removal operation when the current environment information indicates that snow falls, compared with the operation of periodic snow blowing, based on the snow removal operation provided by the invention, the snow removal operation is started only when snow falls, so that the energy consumption consumed by periodic snow blowing operation of the air conditioner can be reduced, in addition, the running time and the rotating speed of the outdoor fan are determined according to the current snow falling amount and the current air volume, the snow falling amount is different, the air volume is different, and the set running time and the set rotating speed are also different, so that dynamic snow removal control is realized, and the effects of effectively removing snow and not additionally increasing the energy consumption of the snow removal operation are achieved based on dynamically adjusting the running time and the rotating speed of the outdoor fan.
The air conditioner according to the present invention will be described in detail with reference to several embodiments.
Example one
In some embodiments of the invention, the air conditioner (based on its master) performs the snow removal operation according to the steps shown in fig. 3:
step 31: the method comprises the steps of obtaining current snowfall information and wind volume information of an area where an outdoor unit is located.
The area of the outdoor unit can be obtained based on positioning by installing a positioning device on the outdoor unit of the air conditioner; or acquiring default positioning data of the air conditioner through positioning of a user terminal associated with the air conditioner, and acquiring the area where the outdoor unit is located based on the positioning.
After the area of the outdoor unit is known, real-time weather forecast information can be obtained through the local internet, current snowfall information and current air quantity information are determined in the weather forecast information, when the snowfall information does not exist or the snowfall is zero, snow removing operation is not executed, and the step S31 is restarted to obtain the weather forecast information after the set time; when the snowfall amount information and the wind amount information exist, the process proceeds to step S32.
Step S32: and determining the snowfall level of the snowfall amount, and determining the forward operation time length and the forward operation rotating speed of the outdoor fan according to the snowfall level.
In some embodiments of the present invention, the snow level is classified according to the amount of the snow, and the snow level, such as a small snow level, a medium snow level, a large snow level, a heavy snow level, and the like, to which the snowfall belongs is determined according to the data of the amount of the snow.
And further determining the forward running time and the forward running rotating speed of the outdoor fan according to the snowfall level, wherein the forward running time and the forward running rotating speed of the outdoor fan are determined according to one embodiment shown in the following table I:
watch 1
| Grade of snowfall | Length of forward running | Forward running speed |
| Small snow | Tf1 | Ff1 |
| Snow in the middle | Tf2 | Ff2 |
| Big snow | Tf3 | Ff3 |
| Snow storm | Tf4 | Ff4 |
And as the snowfall level increases, the forward running time of the outdoor fan increases, and the forward running speed of the outdoor fan increases, namely, Tf1< Tf2< Tf3< Tf4, and Ff1< Ff2< Ff3< Ff 4.
Step S33: and determining the air volume grade of the air volume, and determining the reverse operation time length and the reverse operation rotating speed of the outdoor fan according to the air volume grade.
In some embodiments of the present invention, classification is performed according to component size, the air volume level to which the air volume data belongs is determined according to the air volume data, and further, the reverse operation duration and the reverse operation rotating speed of the outdoor fan are determined according to the air volume level, as shown in the following table two, an embodiment is shown:
watch two
| Air volume class | Length of reverse run | Reverse running speed |
| <4 stage | Tr1 | Fr1 |
| 4-grade wind quantity not more than<Stage 7 | Tr2 | Fr2 |
| The air quantity is more than or equal to 7 grade | Tr3 | Fr3 |
The reverse operation time length of the outdoor fan is prolonged and the reverse operation rotating speed is increased along with the increase of the air volume level, namely Tr1< Tr2< Tr3, and Fr1< Fr2< Fr 3.
Step S34: and controlling the outdoor fan to execute snow removing operation according to the forward running time, the forward running rotating speed, the reverse running time and the reverse running rotating speed.
In some embodiments of the present invention, after the outdoor fan is controlled to operate at the forward operating speed for the forward operating time, the outdoor fan is continuously controlled to operate at the reverse operating speed for the reverse operating time, then the outdoor fan is controlled to stop operating, and after the time is set, the above steps are repeated until the snowfall stops.
In other embodiments of the present invention, after the outdoor fan is controlled to operate for the forward operation time according to the forward operation speed, the outdoor fan is controlled to stop operating for the set time, then the outdoor fan is controlled to operate for the reverse operation time according to the reverse operation speed, then the outdoor fan is controlled to stop operating for the set time, and the forward and reverse operation steps are repeated until the snowfall stops.
The embodiment of the invention gives consideration to the influence of the snow fall amount and the air volume on the accumulated snow of the outdoor unit, and ensures that the snow cannot be accumulated on the shell of the outdoor unit and the accumulated snow entering the interior of the shell of the outdoor unit (usually accumulated on an outdoor heat exchanger) driven by wind is blown out of the shell by the way of performing the forward operation and the reverse operation of the outdoor fan at intervals.
Example two
In some embodiments of the invention, the air conditioner (based on its master) performs the snow removal operation according to the steps shown in fig. 4.
Step S41: the method comprises the steps of obtaining current snowfall information and wind volume information of an area where an outdoor unit is located.
In some embodiments of the invention, the information of the area where the air conditioner is located can be set through a wire controller, a remote controller, an intelligent control terminal and the like; the air conditioner periodically (for example, once a day) acquires local weather forecast information after a local winter comes according to the climate characteristics of an area where the air conditioner is located, judges whether the weather forecast information of the current day contains a snowfall prediction or not, sets an acquisition frequency (for example, once an hour) if the weather forecast contains the snowfall prediction, acquires real-time weather forecast information from the Internet according to the acquisition frequency, and analyzes snowfall information and wind volume information based on the real-time weather forecast information.
Step S42: and determining the snowing level of the snowing amount and the air volume level of the air volume.
In some embodiments of the present invention, the snow level is classified according to the amount of snow falling, and the snow level, such as a small snow level, a medium snow level, a large snow level, a heavy snow level, etc., to which the snow falling data belongs is determined according to the snow falling data.
In some embodiments of the present invention, the snow level is determined according to the air volume data, for example, the air smaller than the 4 th level is divided into a small air volume range, the air larger than or equal to the 4 th level and smaller than the 7 th level is divided into a medium air volume range, and the air larger than or equal to the 7 th level is divided into a large air volume range.
Step S43: and determining the forward running time and the forward running rotating speed of the outdoor fan according to the snowfall level.
The forward operation time and the operation speed of the outdoor fan are determined according to the snowfall level, and the embodiment shown in the first table can be referred to.
Step S44: and determining the reverse operation time length and the reverse operation rotating speed of the outdoor fan according to the air volume level and the snowfall level.
In some embodiments of the present invention, the reverse operation parameters of the outdoor fan are subdivided for different snow-falling levels at different air volume levels, as shown in table three below:
watch III
As the air volume level increases, the reverse operation time length of the outdoor fan increases and the reverse operation speed increases, that is, Tr1# < Tr2# < Tr3#, Fr1# < Fr2# < Fr3#, which includes all cases 1, 2, 3, and 4.
Under the same air volume level, the reverse operation time length of the outdoor fan is increased and the reverse operation rotating speed is increased along with the increase of the snowfall level, namely Tr1< Tr2< Tr 3< Tr 4, Fr1< Fr2< Fr 3< Fr 4, and the air volume levels represent 1, 2, 3 or 4.
Step S45: and controlling the outdoor fan to execute snow removing operation according to the forward running time, the forward running rotating speed, the reverse running time and the reverse running rotating speed.
In some embodiments of the present invention, after the outdoor fan is controlled to operate at the forward operating speed for the forward operating time, the outdoor fan is continuously controlled to operate at the reverse operating speed for the reverse operating time, then the outdoor fan is controlled to stop operating, and after the time is set, the above steps are repeated until the snowfall stops.
In other embodiments of the present invention, after the outdoor fan is controlled to operate at the forward operation speed for the forward operation time, the outdoor fan is controlled to stop operating for the set time, then the outdoor fan is controlled to operate at the reverse operation speed for the reverse operation time, then the outdoor fan is controlled to stop operating for the set time, and the forward and reverse operation steps are repeated until the snowfall stops.
According to the embodiment of the invention, the reverse rotation time length and the reverse rotation speed of the outdoor fan are not only related to the air volume, but also related to the snow fall amount, the reverse rotation time length and the reverse rotation speed are different when the air volume is different under the same snow fall amount, and the reverse rotation time length and the reverse rotation speed are different when the snow fall amount is different under the same air volume, so that the control precision of the outdoor fan is further improved.
EXAMPLE III
In some embodiments of the invention, the air conditioner (based on its master) performs the snow removal operation according to the steps shown in fig. 5:
step S51: the method comprises the steps of obtaining current snowfall information and wind volume information of an area where an outdoor unit is located.
In some embodiments of the present invention, an intelligent terminal, such as a user smart phone, is adopted to associate an air conditioner control APP with a weather forecast APP, obtain local real-time weather forecast data from the weather forecast APP, and implement intelligent air conditioner control according to the local real-time weather forecast, for example, obtain snowfall information and air volume information from the current embodiment.
Step S52: and determining the snowing level of the snowing amount and the air volume level of the air volume.
In some embodiments of the present invention, the snow level is classified according to the amount of the snow, and the snow level, such as a small snow level, a medium snow level, a large snow level, a heavy snow level, and the like, to which the snowfall belongs is determined according to the data of the amount of the snow.
In some embodiments of the present invention, the snow level is determined according to the air volume data, for example, the air smaller than the 4 th level is divided into a small air volume range, the air larger than or equal to the 4 th level and smaller than the 7 th level is divided into a medium air volume range, and the air larger than or equal to the 7 th level is divided into a large air volume range.
Step S53: and determining the forward running time and the forward running rotating speed of the outdoor fan according to the snowfall level.
The forward operation time and the operation speed of the outdoor fan are determined according to the snowfall level, and the embodiment shown in the first table can be referred to.
Step S54: and determining the reverse operation time length and the reverse operation rotating speed of the outdoor fan according to the air volume level and the snowfall level.
Reference may be made to the embodiment shown in table three.
Step S55: and determining the execution period of the outdoor fan for executing snow removing operation according to the snow falling amount and the air volume.
The control section 3 obtains an execution period of the snow removing operation adapted to the current snowing situation, which is generally longer than the sum of the forward operation period and the reverse operation period, based on the snowing amount or the snowing level and the air volume or the air volume level, based on an empirical value comparison or other algorithm model (not defined in the present invention).
Step S56: and controlling the outdoor fan to operate for the forward operation time length according to the forward operation rotating speed and to operate for the reverse operation time length according to the reverse operation rotating speed in the current execution period.
In some embodiments of the present invention, the execution part 4 controls the outdoor fan to operate at the forward operation rotation speed for the forward operation period at the start of the current execution period and controls the outdoor fan to operate at the reverse operation rotation speed for the reverse operation period before the end of the current execution period, during which the outdoor fan is controlled to perform the snow removing operation based on the operation period and the rotation speed.
In some embodiments of the present invention, the execution part 4 continuously controls the outdoor fan to operate at the reverse rotation speed for the reverse rotation time period after controlling the outdoor fan to operate at the forward rotation speed for the forward operation time period at the start of the current execution cycle during the control of the outdoor fan to perform the snow removal operation based on the operation time period and the operation speed.
In some embodiments of the present invention, the sum of the forward operation time and the reverse operation time is equal to the execution period at maximum, that is, the outdoor fan continuously performs the snow removing operation.
In the embodiment of the invention, the execution period of the snow removing operation executed by the outdoor unit is set based on the snow fall amount and the air volume, and the frequency of the snow removing operation is limited by the execution period, so that the execution period is relatively long when the snow fall amount is small, the execution period is relatively short when the snow fall amount is large, the execution period is relatively long when the air volume is small, and the execution period is relatively short when the air volume is large; by limiting the execution period, unnecessary snow removing operation is avoided, and snow removing power consumption is reduced in a maximum limited mode.
The invention also provides a snow accumulation preventing air conditioning system, which aims to ensure the performance and the reliability of the air conditioning system, simultaneously implement snow accumulation removing operation with low energy consumption and high efficiency and ensure that an outdoor unit of the air conditioner can be normally started for heating in snowy weather.
Specifically, the snow accumulation prevention air conditioning system proposed by the present application includes, as shown in fig. 6: (snow removal is carried out according to the procedure shown in FIG. 7)
The air conditioner 61 includes an outdoor unit, i.e., an outdoor unit of the air conditioner, and the outdoor unit includes a casing in which a compressor, an outdoor heat exchanger, and an outdoor fan 1 are disposed.
The outdoor environment monitoring unit 62 executes step S71: acquiring current environment information of an area where an outdoor unit is located; the current environmental information includes at least a snowfall amount and an air volume.
In some embodiments of the present invention, specific data of the snow fall amount and the air volume are acquired and applied, and in other embodiments of the present invention, after the specific data of the snow fall amount and the air volume are acquired, the snow fall amount and the air volume may be classified according to a data range, and classified data of the snow fall amount and the air volume may be applied.
The outdoor environment monitoring unit 62 is a device, a module or a system capable of obtaining real-time weather data of an area where the outdoor unit is located, such as an outdoor environment sensor, an internet weather forecast system, or the like.
The snow accumulation prevention control platform 63, typically a cloud platform, a server, or the like interconnected with the air conditioner 61 through the internet, is configured to perform step S72: determining the running time and the rotating speed for controlling the outdoor fan to execute snow removing operation according to the snow falling amount and the air volume; and generating an accumulated snow removing instruction according to the operation duration and the operation rotating speed, and sending the accumulated snow removing instruction to the air conditioner.
In the embodiment of the invention, the running time of snow removing operation and the rotating speed of the outdoor fan are determined by comprehensively considering the snow falling amount and the air volume.
The snow removing operation at least comprises controlling the outdoor fan to operate according to the set operation duration and the set rotation speed, and blowing off snow on the surface of the outdoor unit based on the operation of the outdoor fan to avoid accumulation.
The air conditioner 61 then executes step S73: and receiving and controlling the outdoor fan to execute snow removing operation based on the snow removing instruction.
After receiving the snow removing instruction, the air conditioner 61 analyzes the snow removing instruction to obtain the operation duration and the operation speed of the outdoor fan, and controls the outdoor fan to perform snow removing operation according to the operation duration and the operation speed.
Based on the snow accumulation prevention air conditioning system provided by the invention, the air conditioner is started to implement snow accumulation removing operation when the current environment information indicates that snow falls, compared with the operation of periodically blowing snow, based on the snow accumulation removing operation provided by the invention, the snow accumulation removing operation is started when snow falls, so that the energy consumption consumed by the periodic snow blowing operation of the air conditioner can be reduced, in addition, the running time and the rotating speed of the outdoor fan are determined according to the current snow falling amount and the air volume, the snow falling amount is different, the air volume is different, and the set running time and the set rotating speed are also different, so that the dynamic snow accumulation removing control is realized, and the effects of effectively removing snow and not additionally increasing the energy consumption of the snow accumulation removing operation are achieved based on dynamically adjusting the running time and the rotating speed of the outdoor fan.
The following description will be made in detail on the snow removing operation of the snow protection air conditioning system according to the present invention with reference to several embodiments.
Example four
In some embodiments of the present invention, the air conditioner 61, the outdoor environment monitoring section 62 and the snow accumulation prevention control platform 63 perform snow accumulation removal operation according to the steps shown in fig. 8:
step 81: the outdoor environment monitoring unit acquires current snowfall information and wind volume information of an area where the outdoor unit is located.
The area of the outdoor unit can be obtained based on positioning by installing a positioning device on the outdoor unit of the air conditioner; or acquiring the default positioning data of the air conditioner through the positioning of the user terminal associated with the air conditioner, and acquiring the area where the outdoor unit is located based on the positioning.
After the area of the outdoor unit is known, real-time weather forecast information can be obtained through the local internet, current snowfall information and current air quantity information are determined in the weather forecast information, when the snowfall information does not exist or the snowfall is zero, snow removing operation is not executed, and the step S81 is restarted to obtain the weather forecast information after the set time; when the snowfall amount information and the wind amount information exist, the process proceeds to step S82.
Step S82: and the snow-accumulation prevention control platform determines the snow-accumulation grade to which the snow accumulation amount belongs according to the snow accumulation amount information, and determines the forward operation time length and the forward operation rotating speed of the outdoor fan according to the snow-accumulation grade.
In some embodiments of the present invention, the snow level is classified according to the amount of snow falling, and the snow level, such as a small snow level, a medium snow level, a large snow level, a heavy snow level, etc., to which the snow falling data belongs is determined according to the snow falling data.
And further determining the forward running time and the forward running rotating speed of the outdoor fan according to the snowfall level, such as the embodiment shown in the table I.
Step S83: and the snow accumulation prevention control platform determines the air volume grade of the air volume according to the air volume information, and determines the reverse operation time length and the reverse operation rotating speed of the outdoor fan according to the air volume grade.
In some embodiments of the invention, classification is performed according to component size, the air volume level of the outdoor fan is determined according to the air volume data, and further the reverse operation duration and the reverse operation rotating speed of the outdoor fan are determined according to the air volume level, which is shown in the embodiment shown in table two.
Step S84: and the snow accumulation prevention control platform generates a snow accumulation removing instruction according to the forward running time, the forward running rotating speed, the reverse running time and the reverse running rotating speed and sends the snow accumulation removing instruction to the air conditioner.
Step S85: the air conditioner receives and controls the outdoor fan to execute snow removing operation based on the snow removing instruction.
In some embodiments of the present invention, under the instruction of the snow removing instruction, after the outdoor fan is controlled to operate for the forward operation time according to the forward operation speed, the outdoor fan is continuously controlled to operate for the reverse operation time according to the reverse operation speed, then the outdoor fan is controlled to stop operating, and the above steps are repeated after the set time is reached until snow is removed.
In other embodiments of the present invention, under the instruction of the snow removing instruction, after the outdoor fan is controlled to operate for the forward operation time according to the forward operation speed, the outdoor fan is controlled to stop operating for the set time, then the outdoor fan is controlled to operate for the reverse operation time according to the reverse operation speed, then the outdoor fan is controlled to stop operating for the set time, and the forward and reverse operation steps are repeated until snow is stopped.
The embodiment of the invention gives consideration to the influence of the snow fall amount and the air volume on the snow cover of the outdoor unit, and ensures that the snow cover entering the interior of the outdoor unit shell (usually accumulated on an outdoor heat exchanger) under the influence of the air is blown out of the shell by the mode of executing the forward running and the reverse running of the outdoor fan at intervals.
EXAMPLE five
In some embodiments of the present invention, the air conditioner 61, the outdoor environment monitoring section 62, and the snow accumulation prevention control platform 63 perform a snow accumulation removal operation according to the steps shown in fig. 9:
step S91: the outdoor environment monitoring unit acquires current snowfall information and wind volume information of an area where the outdoor unit is located.
In some embodiments of the invention, the information of the area where the air conditioner is located can be set through a wire controller, a remote controller, an intelligent control terminal and the like; the snow accumulation prevention control platform acquires local weather forecast information regularly (for example, once a day) after a local winter comes according to the climate characteristics of an area where the snow accumulation prevention control platform is located, judges whether the weather forecast information of the current day contains a snow fall prediction or not, sets an acquisition frequency (for example, once an hour) if the weather forecast contains the snow fall prediction, acquires real-time weather forecast information from the Internet according to the acquisition frequency, and analyzes the snow fall information and the wind volume information based on the real-time weather forecast information.
Step S92: and the snow accumulation prevention control platform determines the snow falling level of the snow falling amount and the air volume level of the air volume according to the snow falling amount information and the air volume information.
In some embodiments of the present invention, the snow level is classified according to the amount of snow falling, and the snow level, such as a small snow level, a medium snow level, a large snow level, a heavy snow level, etc., to which the snow falling data belongs is determined according to the snow falling data.
In some embodiments of the present invention, the snow level is determined according to the air volume data, for example, the air smaller than the 4 th level is divided into a small air volume range, the air larger than or equal to the 4 th level and smaller than the 7 th level is divided into a medium air volume range, and the air larger than or equal to the 7 th level is divided into a large air volume range.
Step S93: and the snow accumulation prevention control platform determines the forward running time and the forward running rotating speed of the outdoor fan according to the snow falling level.
The forward operation time and the operation speed of the outdoor fan are determined according to the snowfall level, and the embodiment shown in the first table can be referred to.
Step S94: and the snow accumulation prevention control platform determines the reverse running time length and the reverse running rotating speed of the outdoor fan according to the air volume level and the snowfall level.
In some embodiments of the present invention, the reverse operating parameters of the outdoor fan are subdivided for different levels of snowfall at different levels of air flow, such as table three.
Step S95: and the snow accumulation prevention control platform generates a snow accumulation removing instruction according to the forward running time, the forward running rotating speed, the reverse running time and the reverse running rotating speed and sends the snow accumulation removing instruction to the air conditioner.
Step S96: the air conditioner receives and controls the outdoor fan to execute snow removing operation based on the snow removing instruction.
In some embodiments of the present invention, under the instruction of the snow removing instruction, after the outdoor fan is controlled to operate for the forward operation time according to the forward operation speed, the outdoor fan is continuously controlled to operate for the reverse operation time according to the reverse operation speed, then the outdoor fan is controlled to stop operating, and the above steps are repeated after the set time is reached until snow is removed.
In other embodiments of the present invention, under the instruction of the snow removing instruction, after the outdoor fan is controlled to operate at the forward operation speed for the forward operation time, the outdoor fan is controlled to stop operating for the set time, then the outdoor fan is controlled to operate at the reverse operation speed for the reverse operation time, then the outdoor fan is controlled to stop operating for the set time, and the forward and reverse operation steps are repeated until the snow removing operation is stopped.
The embodiment of the invention associates the reverse rotation time length and the reverse rotation speed of the outdoor fan with the air quantity and the snowfall quantity, the reverse rotation time length and the reverse rotation speed are different when the air quantity is different under the same snowfall quantity, and the reverse rotation time length and the reverse rotation speed are different when the snowfall quantity is different under the same air quantity, thereby further improving the control precision of the outdoor fan.
EXAMPLE six
In some embodiments of the present invention, the air conditioner 61, the outdoor environment monitoring section 62 and the snow accumulation prevention control platform 63 perform a snow accumulation removing operation according to the steps shown in fig. 10:
step S101: the outdoor environment monitoring unit acquires current snowfall information and wind volume information of an area where the outdoor unit is located.
In some embodiments of the present invention, an intelligent terminal, such as a user smart phone, is adopted to associate an air conditioner control APP with a weather forecast APP, obtain local real-time weather forecast data from the weather forecast APP, and implement intelligent air conditioner control according to the local real-time weather forecast, for example, obtain snowfall information and air volume information from the current embodiment.
Step S102: and the snow accumulation prevention control platform determines the snow falling level of the snow falling amount and the air volume level of the air volume according to the snow falling amount information and the air volume information.
In some embodiments of the present invention, the snow level is classified according to the amount of the snow, and the snow level, such as a small snow level, a medium snow level, a large snow level, a heavy snow level, and the like, to which the snowfall belongs is determined according to the data of the amount of the snow.
In some embodiments of the present invention, the snow level is determined according to the air volume data, for example, the air smaller than the 4 th level is divided into a small air volume range, the air larger than or equal to the 4 th level and smaller than the 7 th level is divided into a medium air volume range, and the air larger than or equal to the 7 th level is divided into a large air volume range.
Step S103: and the snow accumulation prevention control platform determines the forward running time and the forward running rotating speed of the outdoor fan according to the snow falling level.
The forward operation time and the operation speed of the outdoor fan are determined according to the snowfall level, and the embodiment shown in the first table can be referred to.
Step S104: and the snow accumulation prevention control platform determines the reverse running time length and the reverse running rotating speed of the outdoor fan according to the air volume level and the snowfall level.
Reference may be made to the embodiment shown in table three.
Step S105: and the snow accumulation prevention control platform determines the execution period of the snow accumulation removing operation of the outdoor fan according to the snow accumulation amount and the air volume.
The snow accumulation prevention control platform 63 obtains an execution period of snow accumulation removal operation adapted to the current snow accumulation situation according to the snow accumulation amount or the snow accumulation level and the air volume or the air volume level and according to empirical value comparison or other algorithm models (not limited by the present invention), wherein the execution period is generally greater than the sum of the forward operation time length and the reverse operation time length.
Step S106: and the snow accumulation prevention control platform generates a snow accumulation removing instruction according to the forward running time, the forward running rotating speed, the reverse running time, the reverse running rotating speed and the execution period and sends the snow accumulation removing instruction to the air conditioner.
Step S107: the air conditioner receives and controls the outdoor fan to operate for a forward operation time length according to a forward operation rotating speed and to operate for a reverse operation time length according to a reverse operation rotating speed in a current execution period based on the snow removing instruction.
In some embodiments of the present invention, the air conditioner 61 controls the outdoor fan to operate at the forward operation speed for the forward operation period at the beginning of the current execution period and controls the outdoor fan to operate at the reverse operation speed for the reverse operation period before the end of the current execution period, during which the outdoor fan is controlled to perform the snow removing operation based on the operation period and the rotation speed.
In some embodiments of the present invention, the air conditioner 61 controls the outdoor fan to operate at the forward operation speed for the forward operation time period at the beginning of the current execution period and continuously controls the outdoor fan to operate at the reverse operation speed for the reverse operation time period after controlling the outdoor fan to operate at the forward operation speed for the forward operation time period based on the operation time period and the operation speed during the snow removing operation of the outdoor fan.
In some embodiments of the present invention, the sum of the forward operation time and the reverse operation time is equal to the execution period at maximum, that is, the outdoor fan continuously performs the snow removing operation.
In the embodiment of the invention, the execution period of the snow removing operation executed by the outdoor unit is set based on the snow fall amount and the air volume, and the frequency of the snow removing operation is limited by the execution period, so that the execution period is relatively long when the snow fall amount is small, the execution period is relatively short when the snow fall amount is large, the execution period is relatively long when the air volume is small, and the execution period is relatively short when the air volume is large; by limiting the execution period, unnecessary snow removing operation is avoided, and snow removing power consumption is reduced in a maximum limited mode.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An air conditioner comprising:
an outdoor unit including an outdoor fan;
it is characterized by also comprising:
the outdoor environment monitoring part is used for acquiring the current environment information of the area where the outdoor unit is located; the current environment information comprises the snow fall amount and the air volume;
the control part is used for determining the running time and the rotating speed for controlling the outdoor fan to execute snow removing operation according to the snow falling amount and the air volume;
and the execution part is used for controlling the outdoor fan to execute snow removing operation according to the running time and the rotating speed.
2. The air conditioner according to claim 1, wherein the control part determines an operation time period and a rotation speed for controlling the outdoor unit to perform the snow removing operation according to the amount of snow falling and the amount of air flow, and comprises:
determining the snowfall level of the snowfall amount, and determining the forward operation time length and the forward operation rotating speed of the outdoor fan according to the snowfall level; with the increase of the snowfall level, the forward running time of the outdoor fan is prolonged, and the forward running rotating speed is increased;
determining the air volume grade of the air volume, and determining the reverse operation duration and the reverse operation rotating speed of the outdoor fan according to the air volume grade; the reverse operation time of the outdoor fan is prolonged and the reverse operation rotating speed is increased along with the increase of the air volume level.
3. The air conditioner according to claim 1, wherein the control part determines an operation time period and a rotation speed for controlling the outdoor unit to perform the snow removing operation according to the amount of snow falling and the amount of air flow, and comprises:
determining the snowing level of the snowing amount and the air volume level of the air volume, and determining the forward operation duration and the forward operation rotating speed of the outdoor fan according to the snowing level; determining the reverse operation duration and the reverse operation rotating speed of the outdoor fan according to the air volume level and the snowfall level;
the forward running time of the outdoor fan is prolonged along with the increase of the snowfall level, and the forward running rotating speed is increased; the reverse operation time of the outdoor fan is prolonged and the reverse operation speed is improved along with the increase of the air quantity grade.
4. The air conditioner according to claim 2 or 3,
the control part is also used for determining the execution period of the snow removing operation of the outdoor fan according to the snow falling amount and the air volume; the execution period is greater than the sum of the forward operation period and the reverse operation period.
5. The air conditioner according to claim 4,
the execution part is used for controlling the outdoor fan to operate the forward running time according to the forward running speed at the beginning of the current execution period and controlling the outdoor fan to operate the reverse running time according to the reverse running speed before the end of the current execution period during the period of controlling the outdoor fan to execute the snow removing operation according to the running time and the rotating speed; or the like, or, alternatively,
and after the outdoor fan is controlled to operate the forward operation time length according to the forward operation rotating speed at the beginning of the current execution period, the outdoor fan is continuously controlled to operate the reverse operation time length according to the reverse operation rotating speed.
6. An anti-snow air conditioning system, comprising:
an air conditioner including an outdoor unit; the outdoor unit comprises an outdoor fan;
the outdoor environment monitoring part is used for acquiring the current environment information of the area where the outdoor unit is located; the current environment information comprises the snow fall amount and the air volume;
the snow accumulation prevention control platform is used for determining the running time and the rotating speed for controlling the outdoor fan to execute snow accumulation removing operation according to the snow accumulation amount and the air volume; generating an accumulated snow removing instruction according to the running duration and the rotating speed; sending the snow removing instruction to the air conditioner;
and the air conditioner receives and controls the outdoor fan to execute snow removing operation based on the snow removing instruction.
7. The snow protection air conditioning system of claim 6, wherein the snow protection control platform determines the running time and the rotation speed for controlling the outdoor unit to perform snow removing operation according to the snow falling amount and the air volume, and comprises:
determining the snowing level of the snowing amount, and determining the forward running time and the forward running rotating speed of the outdoor fan according to the snowing level; with the increase of the snowfall level, the forward running time of the outdoor fan is prolonged, and the forward running rotating speed is increased;
determining the air volume grade of the air volume, and determining the reverse operation duration and the reverse operation rotating speed of the outdoor fan according to the air volume grade; the reverse operation time of the outdoor fan is prolonged and the reverse operation rotating speed is increased along with the increase of the air volume level.
8. The snow protection air conditioning system of claim 7, wherein the snow protection control platform determines the running time and the rotation speed for controlling the outdoor unit to perform snow removing operation according to the snow falling amount and the air volume, and comprises:
determining the snowing level of the snowing amount and the air volume level of the air volume, and determining the forward operation duration and the forward operation rotating speed of the outdoor fan according to the snowing level; determining the reverse operation duration and the reverse operation rotating speed of the outdoor fan according to the air volume level and the snowfall level;
with the increase of the snowfall level, the forward running time of the outdoor fan is prolonged, and the forward running rotating speed is increased; along with the increase of the air quantity level, the reverse operation time length of the outdoor fan is increased, and the reverse operation rotating speed is increased.
9. The snow protection air conditioning system of claim 7 or 8, wherein the snow protection control platform is further configured to determine an execution period of snow removal operation performed by the outdoor fan according to the amount of snow falling and the air volume; the execution period is greater than the sum of the forward operation period and the reverse operation period.
10. The snow protection air conditioning system of claim 9, wherein the air conditioner controls the outdoor fan to operate the forward operation period at the forward operation rotation speed at the start of a current execution period and controls the outdoor fan to operate the reverse operation period at the reverse operation rotation speed before the end of the current execution period, during the control of the outdoor fan to perform a snow removing operation according to the operation period and the rotation speed; or the like, or, alternatively,
and after the outdoor fan is controlled to operate the forward operation time length according to the forward operation rotating speed at the beginning of the current execution period, the outdoor fan is continuously controlled to operate the reverse operation time length according to the reverse operation rotating speed.
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