CN115127228A - Condensation prevention control method for electric auxiliary heating of air conditioner - Google Patents
Condensation prevention control method for electric auxiliary heating of air conditioner Download PDFInfo
- Publication number
- CN115127228A CN115127228A CN202210634281.0A CN202210634281A CN115127228A CN 115127228 A CN115127228 A CN 115127228A CN 202210634281 A CN202210634281 A CN 202210634281A CN 115127228 A CN115127228 A CN 115127228A
- Authority
- CN
- China
- Prior art keywords
- auxiliary heating
- electric auxiliary
- heating device
- air conditioner
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 230
- 238000009833 condensation Methods 0.000 title claims abstract description 53
- 230000005494 condensation Effects 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000002265 prevention Effects 0.000 title claims description 15
- 238000005057 refrigeration Methods 0.000 claims abstract description 11
- 238000005485 electric heating Methods 0.000 claims description 9
- 238000007791 dehumidification Methods 0.000 claims description 4
- 239000003570 air Substances 0.000 description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 230000017525 heat dissipation Effects 0.000 description 10
- 238000004378 air conditioning Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/009—Indoor units, e.g. fan coil units characterised by heating arrangements
- F24F1/0093—Indoor units, e.g. fan coil units characterised by heating arrangements with additional radiant heat-discharging elements, e.g. electric heaters
-
- 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
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0275—Heating of spaces, e.g. rooms, wardrobes
- H05B1/028—Airconditioning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses an anti-condensation control method for electric auxiliary heating of an air conditioner, wherein the electric auxiliary heating device comprises a main heating body and at least one auxiliary heating body which can be independently heated; the control method comprises the following steps: when the air conditioner is in a refrigeration mode, acquiring relative humidity and the temperature of the surface of the electric auxiliary heating device in each direction; judging the maximum temperature and the minimum temperature of the electric auxiliary heating device, and determining the dew point temperature according to the maximum temperature and the relative humidity; when the dew point temperature is higher than the minimum temperature, judging that the electric auxiliary heating device has a condensation risk, and starting one or more auxiliary heating bodies for heating; and when the dew point temperature is lower than the minimum temperature, judging that the electric auxiliary heating device does not have the condensation risk, and continuing the operation of the air conditioner. According to the anti-condensation control method for the electric auxiliary heating of the air conditioner, whether the electric auxiliary heating device has condensation risk or not is judged by comparing the dew point temperature and the minimum temperature by acquiring the temperature field and the relative humidity around the electric auxiliary heating device; when condensation risks exist, only the auxiliary heating body with lower power can be started for heating.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an electric auxiliary heating condensation prevention control method for an air conditioner.
Background
The inner machine of the existing heat pump type air conditioner is provided with an electric auxiliary heating device which is a conductor heated by a resistor and is used for converting electric energy into heat energy, and the electric auxiliary heating device has higher resistivity and generates heat due to the passing of current, thereby realizing the heating function. Meanwhile, in order to ensure the effect, radiating fins are arranged around the electrically heated conductor to strengthen the radiating effect of the conductor.
The electric auxiliary heating device is generally arranged near the evaporator of the indoor unit, for example, the electric auxiliary heating device of the indoor unit of the on-hook air conditioner is generally arranged between the evaporator and the cross-flow fan. When the air conditioner operates for refrigeration, indoor air passes through an air inlet of an indoor unit of the air conditioner and is subjected to heat exchange through the evaporator to become cold air, and a part of the cold air is blown out of the air outlet along with the cross-flow fan after passing through the electric auxiliary heating device. Therefore, when the air conditioner is used for refrigerating, the temperature of the electric auxiliary heating device can be rapidly reduced. Meanwhile, due to the refrigeration of the air conditioner, a lot of condensed water is condensed on the fins of the evaporator, and when the air conditioner finishes the refrigeration and shutdown, the humidity in the air inside the air channel can reach more than 90% in an actual test. Therefore, after the air conditioner is turned off, the electric auxiliary heating device can generate condensed water on the surface.
According to the verification of practical experiments, when the air conditioner is used for refrigerating, because the temperature field around the electric auxiliary heating device is unbalanced, and meanwhile, the internal humidity is more than 90%, the electric auxiliary heating device continuously generates condensed water in the running process of the air conditioner, and the condensed water can directly drip after accumulating for a period of time. In addition, when the air speed of the air conditioner is high, condensed water on the electric auxiliary heating device is directly blown out and drops indoors, and the use experience of the air conditioner of a user is influenced. Meanwhile, condensed water exists on the electric auxiliary heating device for a long time, certain potential safety hazards exist, oxidation and corrosion of metal parts of the electric auxiliary heating device can be caused, and the service life of the electric auxiliary heating device is shortened. Meanwhile, the electric auxiliary heating device is easily in a damp state for a long time to cause mildewing, so that the wind blown out by the air conditioner has a mildewed flavor.
Disclosure of Invention
Based on the technical problem that an electric auxiliary heating device in an air conditioner in the prior art is prone to generating condensation, the invention provides an anti-condensation control method for electric auxiliary heating of the air conditioner.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
an air conditioner comprises an electric auxiliary heating device, the electric auxiliary heating device comprises a main heating body and at least one auxiliary heating body which can be heated independently, and the power of the main heating body is greater than the sum of the powers of the auxiliary heating bodies; the electric auxiliary heating device is provided with a humidity sensor and a plurality of temperature sensors, and the control method comprises the following steps:
judging the working mode of the air conditioner, and acquiring the relative humidity and the temperature of the surface of the electric auxiliary heating device in each direction when the working mode of the air conditioner is a refrigeration mode or a dehumidification mode;
judging the maximum temperature and the minimum temperature of the electric auxiliary heating device, and determining the dew point temperature according to the maximum temperature and the relative humidity;
when the dew point temperature is higher than the minimum temperature, judging that the electric auxiliary heating device has a condensation risk, and starting one or more auxiliary heating bodies of the electric auxiliary heating device for heating;
and when the dew point temperature is lower than the minimum temperature, judging that the electric auxiliary heating device does not have the condensation risk, and continuing the operation of the air conditioner.
Further, the power of the main heating body is more than 80% of the total power of the electric heating device; the sum of the power of the auxiliary heating bodies is less than 20 percent of the total power of the electric heating device.
Further, the front side and the rear side of the electric auxiliary heating device are respectively provided with a temperature sensor to acquire the temperature of the electric auxiliary heating device in the front-rear direction.
Further, the electric assist device includes:
a main heating body;
the two auxiliary heating bodies are respectively arranged on the front side and the rear side of the main heating body, and can be respectively and independently heated;
and the two groups of radiating fins are respectively arranged on the outer sides of the two auxiliary heating bodies along the front and back directions.
Further, the step of determining that the electric auxiliary heating device has a condensation risk when the dew point temperature is greater than the minimum temperature, and turning on one or more auxiliary heating bodies of the electric auxiliary heating device for heating specifically includes:
and when the dew point temperature is higher than the minimum temperature, judging that the electric auxiliary heating device has a condensation risk, and controlling the electric auxiliary heating device to start only the auxiliary heating body on the side corresponding to the minimum temperature for heating.
Furthermore, the height of the two auxiliary heating bodies is equal to that of the main heating body, and the two auxiliary heating bodies are horizontally arranged on the front side and the rear side of the main heating body.
Further, the height of the two auxiliary heating bodies is smaller than that of the main heating body, and the upper part and/or the lower part of the main heating body is in contact with the radiating fin.
Further, the height of the auxiliary heating body is less than 80% of the height of the main heating body.
Further, the electric assist device includes:
a main heating body;
the auxiliary heating body is arranged at the lower side of the main heating body;
and the two groups of radiating fins are respectively arranged on the front side and the rear side of the main heating body and the auxiliary heating body.
Further, an insulating component is arranged or arranged between the main heating body and the auxiliary heating body at intervals.
Compared with the prior art, the invention has the advantages and positive effects that:
according to the anti-condensation control method for the electric auxiliary heating of the air conditioner, whether the electric auxiliary heating device has condensation risk or not is judged by comparing the dew point temperature and the minimum temperature by acquiring the temperature field and the relative humidity around the electric auxiliary heating device; when there is the condensation risk, can only open the less vice heating member of power and heat, rather than whole electricity assists the heat facility and directly opens, consequently can not appear that the electricity assists the whole direct opening under refrigeration low temperature environment of heat facility, the quick cold and fast hot of heat facility is assisted to electricity, cold and hot extremely uneven problem to and this condition leads to cracked problem to appear in the heating member department of electricity assists the heat facility.
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 technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view illustrating the interior of an air conditioner in an electric heating condensation prevention control method of the air conditioner according to the present invention;
FIG. 2 is a schematic view of an electric auxiliary heating device according to an embodiment of the present invention;
FIG. 3 is a side cross-sectional view of an electric auxiliary heating apparatus in accordance with one embodiment of the present invention;
FIG. 4 is a schematic diagram of an electric auxiliary heating device, a humidity sensor and a temperature sensor according to an embodiment of the present invention;
FIG. 5 is a flow chart of a condensation prevention control method for air conditioning auxiliary heating according to the present invention;
FIG. 6 is a flow chart of a condensation prevention control method of air conditioning auxiliary heating according to a second embodiment of the present invention;
FIG. 7 is a side cross-sectional view of an electric auxiliary heating apparatus in a third embodiment of the present invention;
FIG. 8 is a side cross-sectional view of an electric auxiliary heating apparatus in a fourth embodiment of the present invention;
description of reference numerals:
an evaporator 100;
a cross-flow fan 200;
an electric auxiliary heating apparatus 300; a main heater 310; a sub-heater 320; a heat sink 330;
a temperature sensor 400;
a humidity sensor 500.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection unless otherwise specifically stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. 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 terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Example one
Referring to fig. 1 to 4, there is shown an embodiment of a condensation prevention control method for electric auxiliary heating of an air conditioner according to the present invention. Referring to fig. 1, the air conditioner includes a case, an evaporator 100 disposed in the case, a cross flow fan 200, an electric supplementary heating device 300, and the like.
As shown in fig. 2 and 3, the electric auxiliary heating device 300 includes a main heater 310 and at least one separately heatable auxiliary heater 320. The power of the main heater 310 is greater than the sum of the powers of the auxiliary heaters 320. In this embodiment, preferably, the power of the main heating body 310 is greater than 80% of the total power of the electric heating device; the sum of the power of the auxiliary heating bodies 320 is less than 20% of the total power of the electric heating device. As shown in fig. 4, a plurality of temperature sensors 400 are provided on the electric assist device for detecting the temperature of the electric assist device in various directions. The electric auxiliary heating device is provided with a humidity sensor 500 for detecting the relative humidity around the electric auxiliary heating device.
The anti-condensation control method specifically comprises the following steps:
s100, judging the working mode of the air conditioner, and acquiring the relative humidity around the electric auxiliary heating device and the temperature of the surface of the electric auxiliary heating device in each direction when the working mode of the air conditioner is a refrigeration mode or a dehumidification mode;
s200, judging the maximum temperature Tmax and the minimum temperature Tmin on the electric auxiliary heating device; determining the dew point temperature T according to the maximum temperature Tmax and the relative humidity P;
when the dew point temperature T is greater than the minimum temperature Tmin, judging that the electric auxiliary heating device has a condensation risk, and controlling one or more auxiliary heating bodies of the electric auxiliary heating device to heat so that the temperature of the electric auxiliary heating device is higher than the dew point temperature, thereby avoiding the condensation problem;
and when the dew point temperature T is less than the minimum temperature Tmin, judging that the electric auxiliary heating device has no condensation risk, and continuously operating the air conditioner in the current mode.
In step S200, when T > Tmin and it is determined that the electrical auxiliary heating device has a risk of condensation, one or more auxiliary heating bodies may be periodically and individually turned on to heat, so that the temperature of the electrical heating device is higher than the dew point temperature of the ambient air, and thus the problem of condensation does not occur.
According to the anti-condensation control method for the electric auxiliary heat of the air conditioner, the temperature field and the relative humidity around the electric auxiliary heat device are obtained, and whether the electric auxiliary heat device has a condensation risk or not is judged by comparing the dew point temperature with the minimum temperature; when there is the condensation risk, can only open the less vice heating member of power and heat, rather than whole electric auxiliary heating device directly opens, consequently can not appear that the whole electric auxiliary heating device directly opens under refrigeration low temperature environment, the quick cold and fast hot of electric auxiliary heating device, cold and hot extremely uneven problem to and this condition leads to cracked problem to appear in electric auxiliary heating device's heating member department.
In this embodiment, the electric auxiliary heating apparatus may be provided with one temperature sensor at each of the front side and the rear side thereof to obtain the temperature T1 at the front side and the temperature T2 at the rear side thereof.
The maximum value of T1 and T2 is determined to be Tmax, the minimum value is determined to be Tmin, and the dew point temperature T can be determined by combining the Tmax and the relative humidity P.
When T is more than Tmin, the electric auxiliary heating device can be judged to have condensation risk, and condensation prevention operation is executed.
And when T is less than Tmin, judging that the electric auxiliary heating device has no condensation risk, and not executing condensation prevention operation.
Referring to fig. 2 and 3, the electric auxiliary heating device 300 of the present invention specifically includes a main heating body 310, two auxiliary heating bodies 320, and two sets of heat dissipation fins 330.
The main heater 310 has a large power and is used for auxiliary heating during air conditioning heating.
And the two auxiliary heaters 320 are respectively arranged at the front side and the rear side of the main heater 310, and the two auxiliary heaters 320 can be respectively and independently heated. The height of the two auxiliary heaters 320 is equal to the height of the main heater 310, and the auxiliary heaters are horizontally arranged on the front side and the rear side of the main heater 310.
The two sets of heat dissipation fins 330 are respectively disposed on the outer sides of the two sub-heaters 320 in the front-rear direction.
An insulating member is disposed or provided between the main heater 310 and the sub-heater 320 at an interval to maintain insulation between the main heater 310 and the sub-heater 320.
When the air conditioner heats, the auxiliary heating body 320 is combined with the main heating body 310, and multi-stage regulation and control can be performed according to the temperature of the evaporator. For example, the electric auxiliary heating device 300 may be set to be turned on completely, or only the main heating unit 310 is turned on, or only the main heating unit 310 and one auxiliary heating unit 320 are turned on, or only two auxiliary heating units 320 are turned on, so as to satisfy different requirements. When the air conditioner is used for refrigeration, one or two auxiliary heating bodies 320 can be independently opened, so that the electric auxiliary heating device 300 is prevented from being condensed.
Example two
In this embodiment, the electric auxiliary heating device 300 specifically includes a main heating body 310, two auxiliary heating bodies 320, and two sets of heat dissipation fins 330.
The two sub heaters 320 are respectively disposed at the front and rear sides of the main heater 310, and the two sub heaters 320 can be respectively and independently heated. The height of the two auxiliary heaters 320 is equal to the height of the main heater 310, and the auxiliary heaters are horizontally arranged on the front side and the rear side of the main heater 310.
The two sets of heat dissipation fins 330 are respectively disposed on the outer sides of the two sub-heaters 320 in the front-rear direction.
The front and rear sides of the electric auxiliary heating apparatus 300 are provided with temperature sensors 400, respectively, to acquire a temperature T1 of the front side and a temperature T2 of the rear side of the electric auxiliary heating apparatus 300.
The electric auxiliary heating apparatus 300 is provided with a humidity sensor 500 to acquire a relative humidity P around the electric auxiliary heating apparatus 300.
Referring to fig. 6, the steps of the method for removing condensation in the present embodiment include:
s100', judging the working mode of the air conditioner, and acquiring the temperature T1 of the front side and the temperature T2 of the rear side of the surface of the electric auxiliary heating device when the working mode of the air conditioner is a refrigeration mode or a dehumidification mode;
s200', judging that the maximum value of T1 and T2 is Tmax and the minimum value is Tmin, and determining the dew point temperature T according to the Tmax and P;
when T is larger than Tmin, the electric auxiliary heating device is judged to have condensation risk, and the electric auxiliary heating device is controlled to only start the auxiliary heating body on the side corresponding to Tmin for heating, so that the temperature on the side is higher than the dew point temperature, and the condensation problem can be avoided.
And when T is less than Tmin, judging that the electric auxiliary heating device does not have the condensation risk, and continuously operating the air conditioner.
In the method for removing condensation according to the embodiment, the low temperature side of the electric auxiliary heating device can be heated in a targeted manner to raise the temperature of the low temperature side, and the temperature difference between the front side and the rear side is smaller than the preset temperature value by heating the low temperature side, so that condensation is prevented from being generated.
In this embodiment, the power of the main heating body is greater than 80% of the total power of the electric heating device, and the sum of the powers of the two auxiliary heating bodies is less than 20% of the total power of the electric heating device. The power of the two auxiliary heating bodies can be equal or unequal.
EXAMPLE III
Referring to fig. 7, the electric auxiliary heating apparatus 300 of the present embodiment includes a main heater 310, two auxiliary heaters 320, and two sets of heat dissipation fins 330. The two auxiliary heaters 320 are respectively disposed at the front and rear sides of the main heater 310, and the two auxiliary heaters 320 can be respectively and independently heated. The two sets of heat dissipation fins 330 are respectively disposed on the outer sides of the two sub-heaters 320 in the front-rear direction.
The height of the two sub-heaters 320 is less than that of the main heater 310, and the upper or lower part of the main heater 310 is in contact with the heat sink 330. The height of the sub heater 320 is 80% or less of the height of the main heater 310. The bottom or top of secondary heater 320 is flush with the bottom or top of primary heater 310.
The electric auxiliary heating device 300 of the present embodiment increases the direct contact area between the intermediate main heating element 310 and the heat sink 330 by shortening the height of the auxiliary heating element 320, thereby improving the heating and heat dissipation efficiency of the main heating element 310.
Further, the bottom of the secondary heating body 320 is flush with the bottom of the main heating body 310. When condensed water appears on the electric auxiliary heating device 300, the condensed water is concentrated on the lower portion of the electric auxiliary heating device 300 due to the combined action of gravity, wind direction and the like, so that the contact area between the auxiliary heating bodies 320 and the radiating fins 330 on the two sides is concentrated on the lower portion, the condensed water appearing on the electric auxiliary heating device 300 can be effectively evaporated, and the problem of condensed water accumulation is avoided.
Example four
Referring to fig. 8, the electric auxiliary heating apparatus 300 of the present embodiment includes a main heater 310, an auxiliary heater 320, and two sets of heat dissipation fins 330.
The main heater 310 has a large power and is used for auxiliary heating during air conditioning heating.
And auxiliary heaters 320 provided at the lower side of the main heater 310, the auxiliary heaters 320 being capable of heating separately.
Two sets of heat dissipation fins 330 are respectively disposed along the front and rear sides of the main heating body 310 and the sub-heating body 320.
An insulating member (not shown) is provided or spaced between the main heater 310 and the sub-heater 320 to maintain insulation between the main heater 310 and the sub-heater 320.
When the air conditioner heats, the auxiliary heating body 320 is combined with the main heating body 310, and multi-stage regulation and control can be performed according to the temperature of the evaporator. For example, the electric auxiliary heating device 300 can be set to be turned on completely, or only the main heating body 310 is turned on, or only the auxiliary heating body 320 is turned on, so as to meet different requirements. When the air conditioner is refrigerating, the auxiliary heater 320 can be independently turned on to prevent the electric auxiliary heating device 300 from being condensed.
In the electric auxiliary heating device 300 of the present embodiment, the middle main heating body 310 located at the upper portion is in direct contact with the heat sink 330, so that the heating and heat dissipation efficiency of the main heating body 310 is improved. Meanwhile, when condensed water appears on the electric auxiliary heating device 300, the condensed water is concentrated on the lower part of the electric auxiliary heating device 300 due to the comprehensive action of gravity, wind direction and the like, so that the auxiliary heating body 320 positioned on the lower part can effectively evaporate the condensed water appearing on the electric auxiliary heating device 300, and the problem of condensed water accumulation is avoided.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. The air conditioner comprises an electric auxiliary heating device, and is characterized in that the electric auxiliary heating device comprises a main heating body and at least one auxiliary heating body capable of being heated independently, and the power of the main heating body is greater than the sum of the powers of the auxiliary heating bodies; the electric auxiliary heating device is provided with a humidity sensor and a plurality of temperature sensors, and the control method comprises the following steps:
judging the working mode of the air conditioner, and acquiring the relative humidity and the temperature of the surface of the electric auxiliary heating device in each direction when the working mode of the air conditioner is a refrigeration mode or a dehumidification mode;
judging the maximum temperature and the minimum temperature of the electric auxiliary heating device, and determining the dew point temperature according to the maximum temperature and the relative humidity;
when the dew point temperature is higher than the minimum temperature, judging that the electric auxiliary heating device has a condensation risk, and starting one or more auxiliary heating bodies of the electric auxiliary heating device for heating;
and when the dew point temperature is lower than the minimum temperature, judging that the electric auxiliary heating device does not have the condensation risk, and continuing the operation of the air conditioner.
2. The air conditioner electric auxiliary heating condensation prevention control method according to claim 1, wherein the power of the main heating body is greater than 80% of the total power of the electric heating device; the sum of the power of the auxiliary heating bodies is less than 20 percent of the total power of the electric heating device.
3. The method for controlling condensation prevention of an electric auxiliary heater of an air conditioner according to claim 1, wherein a temperature sensor is provided at each of the front side and the rear side of the electric auxiliary heater to obtain the temperature of the electric auxiliary heater in the front-rear direction.
4. The anti-condensation control method of electric auxiliary heating for an air conditioner according to claim 3, wherein the electric auxiliary heating apparatus includes:
a main heating body;
the two auxiliary heating bodies are respectively arranged on the front side and the rear side of the main heating body, and can be respectively and independently heated;
and the two groups of radiating fins are respectively arranged on the outer sides of the two auxiliary heating bodies along the front and back directions.
5. The air conditioner electric auxiliary heating condensation prevention control method according to claim 4, wherein the step of determining that the electric auxiliary heating device has a condensation risk when the dew point temperature is higher than the minimum temperature and turning on one or more auxiliary heating bodies of the electric auxiliary heating device for heating specifically comprises:
and when the dew point temperature is higher than the minimum temperature, judging that the electric auxiliary heating device has a condensation risk, and controlling the electric auxiliary heating device to start only the auxiliary heating body on the side corresponding to the minimum temperature for heating.
6. The method of claim 5, wherein the two sub heaters are disposed horizontally at front and rear sides of the main heater at a height equal to that of the main heater.
7. The electrical auxiliary heating condensation prevention control method for an air conditioner according to claim 5, wherein the height of the two sub heating bodies is smaller than the height of the main heating body, and the upper and/or lower portion of the main heating body is in contact with the heat radiating fin.
8. The electrical heating assisted condensation prevention control method for an air conditioner according to claim 7, wherein the height of the sub heater is less than 80% of the height of the main heater.
9. The anti-condensation control method of air conditioner electric auxiliary heat according to claim 1, characterized in that the electric auxiliary heat device comprises:
a main heating body;
the auxiliary heating body is arranged at the lower side of the main heating body;
and the two groups of radiating fins are respectively arranged on the front side and the rear side of the main heating body and the auxiliary heating body.
10. The electrical auxiliary heating condensation prevention control method for an air conditioner according to claim 1, wherein an insulating member is provided or spaced between the main heating body and the sub-heating body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634281.0A CN115127228A (en) | 2022-06-06 | 2022-06-06 | Condensation prevention control method for electric auxiliary heating of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634281.0A CN115127228A (en) | 2022-06-06 | 2022-06-06 | Condensation prevention control method for electric auxiliary heating of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115127228A true CN115127228A (en) | 2022-09-30 |
Family
ID=83377417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210634281.0A Pending CN115127228A (en) | 2022-06-06 | 2022-06-06 | Condensation prevention control method for electric auxiliary heating of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115127228A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115978643A (en) * | 2023-01-03 | 2023-04-18 | 四川长虹空调有限公司 | Air conditioner indoor unit and method for controlling condensation on air guide swing blade |
-
2022
- 2022-06-06 CN CN202210634281.0A patent/CN115127228A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115978643A (en) * | 2023-01-03 | 2023-04-18 | 四川长虹空调有限公司 | Air conditioner indoor unit and method for controlling condensation on air guide swing blade |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1087411A (en) | Refrigeration cooling unit with non-uniform heat input for defrost | |
| US9182134B2 (en) | Air conditioner having positive temperature coefficient heater | |
| JPH11222024A (en) | Air conditioner for vehicle | |
| CN104896647A (en) | Cold air prevention control method and system of indoor unit of air conditioner | |
| JP2009238645A (en) | Power-supply device for vehicles | |
| CN110676728A (en) | Dehumidifying device | |
| CN115127228A (en) | Condensation prevention control method for electric auxiliary heating of air conditioner | |
| JP6729527B2 (en) | Equipment temperature controller | |
| JP6211206B2 (en) | Heat exchange ventilator | |
| CN214469483U (en) | Defrosting device for outdoor unit of air conditioner | |
| JP5387789B2 (en) | Air conditioner | |
| US6670584B1 (en) | Spa electric heater system using multiple spa heaters | |
| JP3985642B2 (en) | Hot water generator | |
| CN201209952Y (en) | Overtemperature protective structure for multi-fan heater | |
| CN115127227A (en) | Condensation prevention control method for electric auxiliary heating of air conditioner | |
| CN218119973U (en) | Electric auxiliary heating device and air conditioner | |
| CN211953032U (en) | Air conditioner indoor unit and air conditioner adopting same | |
| CN108072117A (en) | A kind of embedded commercial air conditioner indoor unit | |
| KR100441003B1 (en) | Air conditioning system with refrigerant heating apparatus | |
| KR200440374Y1 (en) | Support heating apparatus of air conditioner | |
| JP3858373B2 (en) | Air conditioner for vehicles | |
| CN219372955U (en) | Constant temperature equipment in cabinet | |
| EP3623726B1 (en) | Heat pump system and control method therefor | |
| CN218645637U (en) | Novel electric heater | |
| CN220022062U (en) | Regulation formula switch board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |