CN114674071A - Electric heater control method and device, air conditioner and storage medium - Google Patents
Electric heater control method and device, air conditioner and storage medium Download PDFInfo
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- CN114674071A CN114674071A CN202011557238.6A CN202011557238A CN114674071A CN 114674071 A CN114674071 A CN 114674071A CN 202011557238 A CN202011557238 A CN 202011557238A CN 114674071 A CN114674071 A CN 114674071A
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000003860 storage Methods 0.000 title claims abstract description 12
- 238000005057 refrigeration Methods 0.000 claims abstract description 17
- 238000007791 dehumidification Methods 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims description 11
- 238000009833 condensation Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 12
- 230000005494 condensation Effects 0.000 abstract description 7
- 238000005536 corrosion prevention Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000843 powder Substances 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method and a control device for an electric heater, an air conditioner and a storage medium, wherein in the method, under the condition that the air conditioner is in a refrigeration mode or a dehumidification mode and target parameters of the air conditioner meet preset conditions, the rotating speed of an inner fan of the air conditioner and indoor temperature collected by the air conditioner are obtained; obtaining a target power supply voltage of the electric heater from a preset relation table based on the rotating speed of the inner fan and the indoor temperature; the preset relation table at least comprises a target power supply voltage which is in corresponding relation with the rotating speed of the inner fan and the indoor temperature; controlling the electric heater to operate at the target supply voltage to prevent frost on the surface of the electric heater. The method has the advantages that the surface of the electric heater cannot be corroded due to frost condensation, the corrosion prevention effect of the surface of the electric heater is improved, and the technical problem that the effect of preventing the surface of the electric heater from being corroded due to the frost condensation in the prior art is poor is effectively solved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a device for controlling an electric heater, an air conditioner and a storage medium.
Background
When the air conditioner operates in a refrigerating or dehumidifying mode, air is changed into high-humidity air after heat exchange through the evaporator, and when the high-humidity air meets an object with the temperature lower than the dew point temperature of the high-humidity air, water drops are condensed on the surface of the object to form frost. Frost may form on the surface of components (e.g., electrical heating devices) in the duct, which may cause the surface to corrode.
In order to solve the problem of surface corrosion caused by surface frost of the electric heater, in the prior art, a method of supplying power to a heating device at intervals for electrifying and heating is adopted, so that condensed water on the surface of the electric heater is evaporated to remove the frost, the frost can still be formed temporarily during the intervals, and the corrosion prevention effect is poor.
Disclosure of Invention
The embodiment of the application provides an electric heater control method, an electric heater control device, an air conditioner and a storage medium, solves the technical problem that in the prior art, the surface of an electric heater is prevented from being corroded due to frost, and the technical effect that the surface of the electric heater cannot generate frost all the time is achieved, so that the anticorrosion effect is improved.
The embodiment of the application provides an electric heater control method, which comprises the following steps:
the method comprises the steps that under the condition that an air conditioner is in a refrigeration mode or a dehumidification mode and target parameters of the air conditioner meet preset conditions, the rotating speed of an inner fan of the air conditioner and indoor temperature collected by the air conditioner are obtained;
Obtaining a target power supply voltage of the electric heater from a preset relation table based on the rotating speed of the inner fan and the indoor temperature; the preset relation table at least comprises a target power supply voltage which is in corresponding relation with the rotating speed of the inner fan and the indoor temperature;
controlling the electric heater to operate at the target supply voltage to prevent frost from forming on the surface of the electric heater.
Optionally, the target parameter includes an operation time of the air conditioner in a cooling mode or a dehumidifying mode, and the preset condition includes that the operation time is greater than or equal to a time threshold.
Optionally, the target parameter further includes an indoor temperature and an outdoor temperature collected by the air conditioner, and the preset condition further includes that both the indoor temperature and the outdoor temperature are within a temperature threshold range.
Optionally, the target parameter further includes an indoor humidity obtained by the air conditioner, and the preset condition further includes that the indoor humidity is within a humidity threshold range.
Optionally, after the step of controlling the electric heater to operate at the target supply voltage, the method further comprises:
and controlling the electric heater to be powered off under the condition that the target parameter of the air conditioner does not meet the preset condition.
Optionally, after the step of controlling the electric heater to operate at the target supply voltage, the method further comprises:
and when an instruction of exiting the refrigeration mode or the dehumidification mode is received, controlling the electric heater to be powered off.
Optionally, before the step of obtaining the rotation speed of the internal fan of the air conditioner and the indoor temperature collected by the air conditioner when the air conditioner is in a cooling mode or a dehumidifying mode and the target parameter of the air conditioner meets a preset condition, the method further includes:
and generating the preset relation table.
Further, to achieve the above object, another embodiment of the present application provides, based on the same inventive principles, an electric heater control apparatus including:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the rotating speed of an internal fan of the air conditioner and the indoor temperature acquired by the air conditioner under the condition that the air conditioner is in a refrigeration mode or a dehumidification mode and target parameters of the air conditioner meet preset conditions;
the obtaining module is used for obtaining the target power supply voltage of the electric heater from a preset relation table based on the rotating speed of the inner fan and the indoor temperature; the preset relation table at least comprises a target power supply voltage which corresponds to the rotating speed of the inner fan and the indoor temperature;
And the control module is used for controlling the electric heater to operate at the target power supply voltage so as to prevent the surface of the electric heater from being frosted.
Further, to achieve the above object, the present application also provides a computer-readable storage medium having stored thereon an electric heater control program which, when executed by a processor, implements the foregoing method.
In addition, to achieve the above object, the present application also provides an air conditioner including a memory, a processor, and an electric heater control program stored on the memory and executable on the processor, wherein the processor implements the foregoing method when executing the electric heater control program.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the application provides an electric heater control method, an electric heater control device, an air conditioner and a storage medium, wherein in the method, under the condition that the air conditioner is in a refrigeration mode or a dehumidification mode and target parameters of the air conditioner meet preset conditions, the rotating speed of an internal fan of the air conditioner and indoor temperature collected by the air conditioner are obtained; obtaining a target power supply voltage of the electric heater from a preset relation table based on the rotating speed of the inner fan and the indoor temperature; the preset relation table at least comprises a target power supply voltage which corresponds to the rotating speed of the inner fan and the indoor temperature; controlling the electric heater to operate at the target supply voltage to prevent frost from forming on the surface of the electric heater. Therefore, the target power supply voltage which can prevent the surface of the electric heater from being frosted can be obtained from the preset relation table according to the current rotating speed of the inner fan and the indoor temperature when the preset condition is met, the operation of the electric heater can be controlled according to the target power supply voltage, the surface of the electric heater can be prevented from being frosted all the time, and the electric heater does not need to be removed regularly after the frosting is generated like the prior art, so that the surface of the electric heater can not be corroded due to the frosting, the anticorrosion effect of the surface of the electric heater is further improved compared with the prior art, and the technical problem that the surface of the electric heater is prevented from being corroded due to the frosting in the prior art is solved effectively.
Drawings
FIG. 1 is a diagram of an air conditioning system according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram of an embodiment of a method for controlling an electric heater according to the present invention;
FIG. 3 is a schematic view of the structure of the electric heater control apparatus of the present invention;
in the figure: the system comprises a compressor 1, a four-way reversing valve 2, an outer fan 3, an outer heat exchanger 4, a throttling component 5, an inner fan 6, an inner heat exchanger 7 and an electric heater 8.
Detailed Description
The application provides a control method of an electric heater, when an air conditioner is in a refrigeration mode or a dehumidification mode, if target parameters of the air conditioner meet preset conditions, the preset condition can be set as the critical condition that the air conditioner is about to generate frost, therefore, the target power supply voltage which can lead the surface of the electric heater not to be frosted can be obtained from the preset relation table according to the current rotating speed of the internal fan and the indoor temperature when the preset condition is met, and the operation of the electric heater is controlled by the target power supply voltage, the surface of the electric heater can not generate frost all the time without removing the frost regularly after the frost is generated like the prior art, therefore, the method can prevent the surface of the electric heater from being corroded due to frost condensation, further improves the anticorrosion effect of the surface of the electric heater compared with the prior art, and effectively solves the technical problem of poor effect of preventing the surface of the electric heater from being corroded due to frost condensation in the prior art.
For a better understanding of the above technical solutions, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example one
The present embodiment provides an electric heater control method for controlling an electric heater of an air conditioner with auxiliary heating to prevent frost from being generated on the surface of the electric heater.
Referring to fig. 1, the air conditioner with electric auxiliary heating generally comprises at least a compressor 1, a four-way reversing valve 2, an outer fan 3, an outer heat exchanger 4 (condenser), a throttling component 5, an inner fan 6, an inner heat exchanger 7 (evaporator) and an electric heating device, wherein the four-way reversing valve 2 is connected in series with the outer heat exchanger 4 (condenser), the throttling component 5 and the inner heat exchanger 7 (evaporator) for heat exchange; meanwhile, the four-way reversing valve 2 is connected in series with the compressor 1 to compress air. In addition, the electric heating device includes but is not limited to PTC (positive temperature coefficient thermistor) and electric heater 8, etc. type electric auxiliary heat, the electric heater 8 is located in the wind channel of the inner fan for auxiliary heating. It should be noted that the principle of the air conditioner to realize cooling and heating belongs to the common general knowledge in the art, and is not described herein again.
In the operation process, when the air conditioner operates in a refrigerating or dehumidifying mode, air is changed into high-humidity air after heat exchange through the evaporator, when the high-humidity air meets an object with a temperature lower than the dew point temperature of the high-humidity air, water drops are condensed on the surface of the object, and the high-humidity air is called condensation or frost condensation in the embodiment. For example, when the electric heater 8 in the air duct passes through high-humidity air, frost is generated when the surface temperature of the electric heater 8 is lower than the dew point temperature, and when the surface temperature of the electric heater 8 is increased, the frost is evaporated, because the surface of the electric heater is in a state that condensed water is continuously condensed and evaporated for a long time, the surface of the electric heater is easy to corrode, and in a serious case, white powder is blown out, so that the user feels uncomfortable. In addition, when the refrigerator operates for a long time or dehumidifies, more and more condensed water is accumulated on the surface of the electric heater 8, and the condensed water is blown out along with wind after accumulating for a certain time, so that a user has uncomfortable experience. In order to solve the problem of frost on the surface of the electric heater 8, the conventional technical scheme adopts the mode that the electric heater 8 is electrified at certain intervals to evaporate condensed water on the surface of the electric heater, so that no frost water is blown out even if the air conditioner runs for a long time, but frost is removed after the frost is condensed, so that the surface of the electric heater is still easy to corrode, and frequent switching of the electric heating pipe can cause large power fluctuation and power consumption, and is not favorable for the power saving requirement of a user. Therefore, the present embodiment provides a control method of an electric heater to solve the above problems.
Referring to fig. 2, the method for controlling an electric heater according to the present embodiment based on the air conditioner with auxiliary electric heating according to the present embodiment includes:
s20, under the condition that the air conditioner is in a refrigeration mode or a dehumidification mode and target parameters of the air conditioner meet preset conditions, acquiring the rotating speed of an inner fan of the air conditioner and the indoor temperature collected by the air conditioner;
s40, obtaining a target power supply voltage of the electric heater from a preset relation table based on the rotating speed of the inner fan and the indoor temperature; the preset relation table at least comprises a target power supply voltage which is in corresponding relation with the rotating speed of the inner fan and the indoor temperature;
and S60, controlling the electric heater to operate at the target power supply voltage so as to prevent the surface of the electric heater from being frosted.
It should be noted that in this embodiment, parameters such as the target parameter, the rotating speed of the internal fan, and the indoor temperature may be obtained by monitoring through a sensor or a monitoring instrument disposed at a corresponding position.
The execution of the steps is described in detail below with reference to fig. 2.
Firstly, S20 is executed, and when the air conditioner is in a cooling mode or a dehumidifying mode and the target parameters of the air conditioner meet preset conditions, the rotating speed of an internal fan of the air conditioner and the indoor temperature collected by the air conditioner are obtained.
In particular implementations, air conditioners generally include a plurality of operating modes, such as a cooling mode, a heating mode, a dehumidification mode (dehumidification mode), and the like. The method of the embodiment is only suitable for the air conditioner in the cooling mode or the dehumidifying mode, because the air conditioner is operated only in the cooling mode or the dehumidifying mode to generate the high-humidity air.
The target parameters are parameters which can be used for judging whether the air conditioner enters an anti-frosting condition, the preset conditions are conditions for entering the anti-frosting condition, and the parameters can be obtained according to tests, specifically, the parameters can be known as the target parameters through repeated tests for observing the change rule of the electric heater frosting and the target parameters, and reasonable preset conditions are set, so that the target parameters enter an anti-frosting mode under the condition that the target parameters meet the preset conditions, and therefore the surface of the electric heater is prevented from frosting. For example, the target parameter includes an operation time of the air conditioner in a cooling mode or a dehumidifying mode, and the preset condition includes that the operation time is greater than or equal to a time threshold. And when the running time is greater than or equal to the time threshold, entering into an anti-frost mode. Specifically, the time threshold is generally 10-60 min.
As an optional implementation manner, the target parameter further includes an indoor temperature and an outdoor temperature collected by the air conditioner, and at this time, the preset condition further includes that both the indoor temperature and the outdoor temperature are within a temperature threshold range.
In the specific implementation process, the indoor temperature is the indoor air temperature detected by the air conditioner and is generally positioned on the air inlet side of the indoor unit. The outdoor temperature is the outdoor air temperature detected by the air conditioner, and is generally located on the air inlet side of the outdoor unit. As can be seen from the foregoing, the temperature threshold can be determined experimentally, and generally, the lower limit value Ti min of the temperature threshold is 16 to 30 ℃ and the upper limit value Ti max of the temperature threshold is 16 to 30 ℃.
Specifically, when the indoor temperature and the outdoor temperature are both 16-30 ℃ and the running time is more than or equal to the time threshold, the anti-frost mode is entered.
As another optional implementation manner, the target parameter further includes an indoor humidity acquired by the air conditioner, and at this time, the preset condition further includes that the indoor humidity is within a humidity threshold range.
In the specific implementation process, the humidity threshold of the indoor air detected by the indoor humidity air conditioner can be determined according to the foregoing experiment, and generally speaking, the lower limit value Φ min of the humidity threshold is 30% to 60%, and the upper limit value Φ max of the humidity threshold is 60% to 100%.
Specifically, when the indoor humidity is within the humidity threshold and the operation time is greater than or equal to the time threshold, the anti-frosting mode is entered.
Further, in the anti-frost mode, in order to prevent the surface of the electric heater from frosting, the rotation speed of the internal fan of the air conditioner and the indoor temperature collected by the air conditioner need to be acquired first.
In the specific implementation process, the indoor temperature is the indoor air temperature detected by the air conditioner and is generally positioned on the air inlet side of the indoor unit, and the rotating speed of the inner fan can be determined by the air gear of the air conditioner.
Next, S40 is executed to obtain a target power supply voltage of the electric heater from a preset relationship table based on the inner fan rotation speed and the indoor temperature.
In the specific implementation process, the target power supply voltage is an operating voltage which can prevent the surface of the electric heater from generating frost, it can be understood that the electric heater has a corresponding relation with the body temperature in a certain voltage range, and the surface temperature of the electric heater can be controlled by controlling the voltage to prevent the surface of the electric heater from being condensed, namely, as long as the surface temperature of the electric heater is higher than the dew point temperature.
In addition, the preset relation table at least comprises target power supply voltages corresponding to the rotating speed of the inner fan and the indoor temperature, and it can be understood that the preset relation table can also comprise a plurality of power supply voltages corresponding to different rotating speeds of the inner fan and different indoor temperatures, so as to meet the requirements of different air conditioners or the same air conditioner on the power supply voltages in different running states.
As an alternative embodiment, the preset relation table may be generated based on a test of the air conditioner before entering the anti-frost mode.
Specifically, a preset relationship table may be obtained through experimental summary, for example, please refer to table 1 below, where the table includes a plurality of voltage values having a corresponding relationship with the indoor temperature and the rotating speed (wind gear) of the internal fan, that is, the target power supply voltage.
TABLE 1 Preset relationship Table
Since the air gear of the air conditioner (i.e., the gear of the rotational speed of the inner fan) is in direct proportion to the rotational speed of the inner fan, the rotational speed of the inner fan is represented by the air gear in table 1.
Next, S60 is executed to control the electric heater to operate at the target supply voltage to prevent frost from forming on the surface of the electric heater.
In a specific implementation process, after a target power supply voltage is obtained, the electric heater is controlled to operate at the target power supply voltage, and therefore surface frost condensation of the electric heater can be prevented.
Further, after the step of controlling the electric heater to operate at the target power supply voltage, if the target parameter of the air conditioner does not meet the preset condition, that is, the temperature of the surface of the electric heater reaches the temperature at which frost is not condensed, the electric heater may be controlled to be powered off, so as to save electric energy resources and reduce power consumption.
In addition, in another embodiment, after the step of controlling the electric heater to operate at the target supply voltage, when an instruction to exit the cooling mode or the dehumidifying mode is received, the electric heater is controlled to be powered off, so that power resources are saved, and power consumption is reduced.
The above is the execution process of each step of the method of the present embodiment, and the implementation process of the method of the present embodiment is shown in the following by three examples.
Example 1: ti min is 20 ℃, Ti max is 33 ℃, wind gear Fr is 60%, time threshold Y is 20min, when the indoor temperature is equal to 25 ℃ and the running time of the air conditioner in the refrigeration mode or the dehumidification mode is 20min, the air conditioner enters into the anti-frosting mode at the moment, anti-frosting control is required, at the moment, Fr is 60%, the indoor temperature Ti is 25 ℃, the voltage of the air conditioner is 120V, the input voltage of the electric heater is controlled to be 120V, the electric heater is electrified, and the electric heater enters into the anti-frosting control. Meanwhile, if any variable of Fr and Ti changes, the system needs to adjust the input voltage of the electric heater in time; if Ti or the outdoor temperature To is not in the range of 20-33 ℃ during the operation of the air conditioner, the anti-condensation control is quitted, and the electric heater is powered off; during the anti-condensation operation, if the air conditioner receives a signal of quitting refrigeration or dehumidifying, the anti-condensation control quits, and the electric heater is powered off.
Example 2: phi min is 30%, phi max is 70%, Fr is 60%, Ti is 25 ℃, Y is 10min, when the indoor humidity phi is detected to be 80% and the operation time of the air conditioner in a refrigeration mode or a dehumidification mode is 10min, the air conditioner enters an anti-condensation mode, anti-condensation control needs to be carried out, Fr is 60% and Ti is 25 ℃, the voltage of the air conditioner is 120V, the input voltage of the electric heater is controlled to be 120V, the electric heater is powered on, and accordingly the electric heater enters the anti-condensation control. Meanwhile, if any variable of Fr and Ti changes, the system needs to adjust the input voltage of the electric heater in time; if phi is less than 30% during the operation of the air conditioner, the anti-condensation control is quitted, and the electric heater is powered off; during the anti-condensation operation, if the air conditioner receives a signal of quitting refrigeration or dehumidifying, the anti-condensation control quits, and the electric heater is powered off.
Example 3: fr is 60%, Ti is 25 ℃, Y is 10min, when the operation time of the air conditioner in the refrigeration mode or the dehumidification mode is 10min, the air conditioner enters into an anti-condensation mode, anti-condensation control is needed, Fr is 60% and Ti is 25 ℃, the voltage of the air conditioner is 120V, the input voltage of the electric heater is controlled to be 120V, and the electric heater is electrified, namely the electric heater enters into the anti-condensation control. Meanwhile, if any variable of Fr and Ti changes, the system needs to adjust the input voltage of the electric heater in time; if the air conditioner receives a signal of quitting refrigeration or dehumidifying during the anti-condensation operation period of the air conditioner, the anti-condensation control quits, and the electric heater is powered off.
Therefore, by adopting the method in the embodiment, the preset condition can be set as the critical condition that the air conditioner is about to generate the frost, so that the target power supply voltage which can prevent the surface of the electric heater from being frosted can be obtained from the preset relation table according to the current rotating speed of the internal fan and the indoor temperature when the preset condition is met, the operation of the electric heater is controlled according to the target power supply voltage, the surface of the electric heater can not generate the frost all the time, and the electric heater does not need to be removed regularly after the frost is generated like the prior art, so that the surface of the electric heater can not be corroded due to the frost generation, the corrosion prevention effect of the surface of the electric heater is further improved compared with the prior art, and the technical problem that the corrosion prevention effect of the surface of the electric heater due to the frost generation in the prior art is poor is effectively solved. Specifically, the accuracy of the temperature of the electric heater body can be ensured by determining the voltage based on the rotating speed of the inner fan and Ti; the determination of the power supply voltage of the electric heater through the rotating speed of the inner fan and Ti is easier to realize and the cost is lower.
Based on the same inventive concept, the embodiment of the application also provides an electric heater control device corresponding to the method in the first embodiment, which is shown in the second embodiment.
Example two
The present embodiment provides an electric heater control apparatus including:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the rotating speed of an internal fan of the air conditioner and the indoor temperature acquired by the air conditioner under the condition that the air conditioner is in a refrigeration mode or a dehumidification mode and target parameters of the air conditioner meet preset conditions;
the obtaining module is used for obtaining a target power supply voltage of the electric heater from a preset relation table based on the rotating speed of the inner fan and the indoor temperature; the preset relation table at least comprises a target power supply voltage which is in corresponding relation with the rotating speed of the inner fan and the indoor temperature;
and the control module is used for controlling the electric heater to operate at the target power supply voltage so as to prevent the surface of the electric heater from being frosted. .
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the electric heater control device of the embodiment can set the preset condition as the critical condition that the air conditioner is about to generate frost, so that the target power supply voltage which can prevent the surface of the electric heater from being frosted can be obtained from the preset relation table according to the current rotating speed of the inner fan and the indoor temperature when the preset condition is met, the operation of the electric heater is controlled by the target power supply voltage, the frost can not be generated on the surface of the electric heater all the time, and the electric heater control device does not need to be removed at regular time after the frost is generated like the prior art, so that the surface of the electric heater cannot be corroded due to the frost generation. Specifically, the voltage is determined based on the rotating speed of the inner fan and Ti, so that the accuracy of the temperature of the electric heater body can be ensured; the power supply voltage of the electric heater is determined through the rotating speed of the inner fan and Ti, so that the electric heater is easy to realize and low in cost.
Since the apparatus described in the second embodiment of the present invention is an apparatus used for implementing the method of the first embodiment of the present invention, based on the method described in the first embodiment of the present invention, a person skilled in the art can understand the specific structure and the deformation of the apparatus, and thus the details are not described herein. All the devices adopted in the method of the first embodiment of the present invention belong to the protection scope of the present invention.
Further, based on the same inventive concept, embodiments of the present application also provide a computer-readable storage medium having stored thereon an electric heater control program that, when executed by a processor, implements the aforementioned method.
In addition, based on the same inventive concept, embodiments of the present application also provide an air conditioner, which includes a memory, a processor, and an electric heater control program stored on the memory and operable on the processor, and the processor implements the foregoing method when executing the electric heater control program.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, air conditioners (apparatus), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing air conditioner to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing air conditioner, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing air conditioner to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing air conditioner to cause a series of operational steps to be performed on the computer or other programmable air conditioner to produce a computer implemented process such that the instructions which execute on the computer or other programmable air conditioner provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A method of controlling an electric heater, the method comprising:
the method comprises the steps that under the condition that an air conditioner is in a refrigeration mode or a dehumidification mode and target parameters of the air conditioner meet preset conditions, the rotating speed of an inner fan of the air conditioner and indoor temperature collected by the air conditioner are obtained;
obtaining a target power supply voltage of the electric heater from a preset relation table based on the rotating speed of the inner fan and the indoor temperature; the preset relation table at least comprises a target power supply voltage which is in corresponding relation with the rotating speed of the inner fan and the indoor temperature;
Controlling the electric heater to operate at the target supply voltage to prevent frost on the surface of the electric heater.
2. The method as claimed in claim 1, wherein the target parameter includes a running time of the air conditioner in a cooling mode or a dehumidifying mode, and the preset condition includes the running time being greater than or equal to a time threshold.
3. The method as claimed in claim 2, wherein the target parameters further include an indoor temperature and an outdoor temperature collected by the air conditioner, and the preset conditions further include that both the indoor temperature and the outdoor temperature are within a temperature threshold range.
4. The method of claim 2, wherein the target parameter further comprises an indoor humidity captured by the air conditioner, and wherein the preset condition further comprises the indoor humidity being within a humidity threshold range.
5. The method of claim 1, wherein after the step of controlling the electric heater to operate at the target supply voltage, the method further comprises:
and controlling the electric heater to be powered off under the condition that the target parameter of the air conditioner does not meet the preset condition.
6. The method of claim 1, wherein after the step of controlling the electric heater to operate at the target supply voltage, the method further comprises:
And when an instruction of exiting the refrigeration mode or the dehumidification mode is received, controlling the electric heater to be powered off.
7. The method as claimed in claim 1, wherein the method further comprises, before the step of obtaining the rotation speed of the internal fan of the air conditioner and the indoor temperature collected by the air conditioner in case that the air conditioner is in a cooling mode or a dehumidifying mode and the target parameter of the air conditioner satisfies a preset condition:
and generating the preset relation table.
8. An electric heater control apparatus, the apparatus comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the rotating speed of an internal fan of the air conditioner and the indoor temperature acquired by the air conditioner under the condition that the air conditioner is in a refrigeration mode or a dehumidification mode and target parameters of the air conditioner meet preset conditions;
the obtaining module is used for obtaining the target power supply voltage of the electric heater from a preset relation table based on the rotating speed of the inner fan and the indoor temperature; the preset relation table at least comprises a target power supply voltage which corresponds to the rotating speed of the inner fan and the indoor temperature;
and the control module is used for controlling the electric heater to operate at the target power supply voltage so as to prevent the surface of the electric heater from being frosted.
9. A computer-readable storage medium, on which an electric heater control program is stored, characterized in that the electric heater control program, when executed by a processor, implements the method of any one of claims 1 to 7.
10. An air conditioner comprising a memory, a processor, and an electric heater control program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1-7 when executing the electric heater control program.
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