CN218119973U - Electric auxiliary heating device and air conditioner - Google Patents
Electric auxiliary heating device and air conditioner Download PDFInfo
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- CN218119973U CN218119973U CN202221395486.XU CN202221395486U CN218119973U CN 218119973 U CN218119973 U CN 218119973U CN 202221395486 U CN202221395486 U CN 202221395486U CN 218119973 U CN218119973 U CN 218119973U
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- auxiliary heating
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- heating body
- heating device
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 199
- 238000009833 condensation Methods 0.000 abstract description 28
- 230000005494 condensation Effects 0.000 abstract description 27
- 238000001816 cooling Methods 0.000 abstract description 5
- 239000003570 air Substances 0.000 description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 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
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The utility model relates to the technical field of air conditioners, and discloses an electric auxiliary heating device and an air conditioner, which comprises 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 the power of the main heating body is greater than the sum of the powers of the two auxiliary heating bodies; two groups of radiating fins are respectively arranged on the outer sides of the two auxiliary heating bodies along the front and back directions; 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. When the electric auxiliary heating device has a condensation risk, only the auxiliary heating body with smaller power can be started for heating, so that the problems that the whole electric auxiliary heating device is directly started in a low-temperature refrigerating environment, and the electric auxiliary heating device is quick to cool and quick to heat and extremely uneven in cooling and heating are solved; meanwhile, the height of the auxiliary heating body is shortened, and the direct contact area between the middle main heating body and the radiating fins is increased, so that the heating and radiating efficiency of the main heating body is improved.
Description
Technical Field
The utility model relates to an air conditioning technology field especially relates to an electric auxiliary heating device and 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 electric heating 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 shut down, 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 easy to be in a damp state for a long time to mildew, so that the wind blown out by the air conditioner has musty smell.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the electric auxiliary heating device in the air conditioner is easy to generate condensation in the prior art, the utility model provides an electric auxiliary heating device and an air conditioner, which prevent the condensation by opening the auxiliary heating body of the electric auxiliary heating device for heating; meanwhile, the height of the auxiliary heating body is shortened, and the direct contact area between the middle main heating body and the radiating fins is increased, so that the heating and radiating efficiency of the main heating body is improved.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:
an electrically assisted thermal device comprising:
a main heating body;
the two auxiliary heating bodies are respectively arranged at the front side and the rear side of the main heating body, and the power of the main heating body is greater than the sum of the powers of the two auxiliary heating bodies;
two groups of radiating fins are respectively arranged on the outer sides of the two auxiliary heating bodies along the front and back directions;
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 power of the main heating body is more than 80% of the total power of the electric auxiliary heating device; the sum of the power of the two auxiliary heating bodies is less than 20 percent of the total power of the electric auxiliary heating device.
Further, the two auxiliary heating bodies are respectively and independently heated.
Furthermore, the two auxiliary heating bodies have the same height, and the bottoms of the two auxiliary heating bodies are flush with the bottom of the main heating body.
Further, the height of the auxiliary heating body is less than 80% of the height of the main heating body.
Furthermore, the main heating body and the auxiliary heating body are arranged at intervals.
Further, an insulating component is connected between the main heating body and the auxiliary heating body.
Further, the radiating fins are attached to and welded and fixed on the outer surfaces of the auxiliary heating body and the main heating body.
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.
The utility model discloses still include an air conditioner, it includes foretell electric auxiliary heating device.
Compared with the prior art, the utility model discloses an advantage is with positive effect:
according to the electric auxiliary heating device, the main heating body and the auxiliary heating body are arranged, so that when condensation risks exist, the auxiliary heating body with smaller power is only started to heat, the whole electric auxiliary heating device is not directly started, and the problems that the whole electric auxiliary heating device is directly started in a low-temperature refrigerating environment, and the electric auxiliary heating device is rapid in cooling and rapid in heating and extremely uneven in cooling and heating are solved; meanwhile, the height of the auxiliary heating body is shortened, and the direct contact area between the middle main heating body and the radiating fins is increased, so that the heating and radiating efficiency of the main heating body is improved.
Other features and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments, which is to be read in connection with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, 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 that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the inside of the air conditioner of the present invention;
FIG. 2 is a schematic bottom view of the electric auxiliary heating device of the present invention;
FIG. 3 is a side sectional view of the electric auxiliary heating apparatus of the present invention;
FIG. 4 is a schematic structural view of the electric auxiliary heating device and the temperature sensor 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.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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 merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning 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 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 invention, "a plurality" means two or more unless otherwise specified.
Referring to fig. 1 to 4, there is shown an embodiment of an electric auxiliary heating apparatus and 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 auxiliary heating apparatus 300, and the like.
As shown in fig. 2 and 3, the electric auxiliary heating device 300 includes a main heating body 310, two separately heatable auxiliary heating bodies 320, and two sets of heat dissipation fins 330.
The power of the main heater 310 is greater than the sum of the powers of the auxiliary heaters 320. In this embodiment, the power of the main heating body is greater than 80% of the total power of the electric auxiliary 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 auxiliary heating device. The power of the two auxiliary heating bodies can be equal or unequal.
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 auxiliary heating bodies 320 is less than that of the main heating body 310, and the upper part or the lower part of the main heating body 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 the sub-heater 320 is flush with the bottom or top of the main heater 310, and then the main heater 310 can be in direct contact with the heat sink 330, thereby improving the heating and heat dissipation efficiency of the main heater 310.
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 element 310 is turned on, or only the main heating element 310 and one auxiliary heating element 320 are turned on, or only two auxiliary heating elements 320 are turned on, to meet 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.
According to the electric auxiliary heating device, the main heating body and the auxiliary heating body are arranged, so that when condensation risks exist, the auxiliary heating body with lower power is only started to heat, the whole electric auxiliary heating device is not directly started, and the problems that the whole electric auxiliary heating device is directly started in a refrigeration low-temperature environment, and the electric auxiliary heating device is rapid in cooling and rapid in heating and extremely uneven in cooling and heating are avoided; meanwhile, the height of the auxiliary heating body is shortened, and the direct contact area between the middle main heating body and the radiating fins is increased, so that the heating and radiating efficiency of the main heating body is improved.
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 part of the electric auxiliary heating device 300 due to the comprehensive 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 part, the condensed water appearing on the electric auxiliary heating device 300 can be effectively evaporated, and the problem of condensed water accumulation is avoided.
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.
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 utility model discloses a condensation prevention control method of an air conditioner, which comprises the following steps:
s100, judging the working mode of the air conditioner, and acquiring the temperature T1 of the surface of the electric auxiliary heating device on the front side and the temperature T2 of the surface of the electric auxiliary heating device on the rear side when the working mode of the air conditioner is a refrigeration mode or a dehumidification mode;
s200, judging whether the absolute value T of the temperature difference between the T1 and the T2 on the electric auxiliary heating device is larger than a preset temperature value;
when T = | T1-T2 | is larger than or equal to a preset temperature value, the condensation risk of the electric auxiliary heat device can be judged, the condensation risk of the electric auxiliary heat device is judged, two auxiliary heating bodies of the electric auxiliary heat device are controlled to heat, the temperature of the electric auxiliary heat device is higher than the dew point temperature, and the condensation problem is avoided;
when T = | T1-T2 | is less than the preset temperature value, it can be determined that the electric auxiliary device has no condensation risk, and the air conditioner continues to operate in the current mode.
In step S200, when T is equal to or greater than the preset temperature value and the electric auxiliary heating device is judged to be in the condensation risk, one or two auxiliary heating bodies can be periodically and independently started for heating so that the temperature of the electric heating device is higher than the dew point temperature of the ambient air, and the condensation problem can not occur.
In step S200, when T is greater than or equal to the preset temperature value, the electric auxiliary heating device is judged to be in the condensation risk, the sizes of T1 and T2 can be further determined, the minimum temperature Tmin of the T1 and the T2 is determined, the electric auxiliary heating device is controlled to be started only to heat the auxiliary heating body on the side corresponding to the minimum temperature Tmin, and the condensation problem can be avoided. The method can increase the temperature of the low-temperature side of the electric auxiliary heating device by heating the low-temperature side in a targeted manner, and prevent condensation by heating the low-temperature side to ensure that the temperature difference between the front and the back of the low-temperature side is less than a preset temperature value.
When the air conditioner is used for refrigeration, the humidity in the air inside the air duct can reach more than 90%, and the situation that the ambient temperature field is uneven can occur due to uneven shunting of the evaporator in the internal air duct of the electric auxiliary heating device, namely the ambient temperature of the electric auxiliary heating device is deviated, and the electric auxiliary heating device can continuously generate condensation. According to the verification of practical experiments, when the temperature difference around the electric auxiliary heating device is more than 1 ℃, the condensation problem can occur because the temperature is lower than the dew point temperature. Therefore, the preset temperature value in step S200 is 1 ℃. Namely:
when T is more than 1 ℃, the electric auxiliary heating device has condensation risk; when the Δ T =1 ℃, the electric auxiliary heating device has condensation risk or does not have condensation risk when the electric auxiliary heating device is at a critical value; when T is less than 1 ℃, the electric auxiliary heating device has no condensation risk. Therefore, when the temperature T is more than or equal to 1 ℃, the electric auxiliary heating device can be judged to have the condensation risk, and the condensation prevention operation is executed. When the temperature T is less than 1 ℃, the electric auxiliary heating device can be judged to have no condensation risk, and the condensation prevention operation is not executed.
According to the anti-condensation control method of the air conditioner, whether condensation risks exist is judged through the temperature difference by acquiring the temperature field 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 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.
The above embodiments are only used 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 modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.
Claims (10)
1. An electrically assisted thermal device, comprising:
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 the power of the main heating body is greater than the sum of the powers of the two auxiliary heating bodies;
two groups of radiating fins are respectively arranged on the outer sides of the two auxiliary heating bodies along the front and back directions;
the heights of the two auxiliary heating bodies are 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.
2. Electrical auxiliary heating device according to claim 1, characterized in that the power of said main heating body is greater than 80% of the total power of the electrical auxiliary heating device; the sum of the power of the two auxiliary heating bodies is less than 20 percent of the total power of the electric auxiliary heating device.
3. The electric auxiliary heating device according to claim 1, wherein the two auxiliary heating bodies are independently heated.
4. The electric auxiliary heating device according to claim 1, characterized in that the two auxiliary heating bodies are of equal height and have a bottom level with the bottom of the main heating body.
5. The electric auxiliary heating device according to claim 1, characterized in that the height of said secondary heating body is less than 80% of the height of the main heating body.
6. The electric auxiliary heating device according to claim 1, wherein the main heating body and the auxiliary heating body are spaced apart from each other.
7. The electric auxiliary heating device according to claim 1, wherein an insulating member is connected between the main heating body and the auxiliary heating body.
8. The electric auxiliary heating device according to claim 1, wherein the heat sink is welded to the outer surfaces of the auxiliary heating body and the main heating body.
9. The electric auxiliary heating apparatus according to claim 1, wherein the front side and the rear side of the electric auxiliary heating apparatus are provided with a temperature sensor, respectively, to obtain the temperature of the electric auxiliary heating apparatus in the front-rear direction.
10. An air conditioner characterized by comprising an electric auxiliary heating apparatus as set forth in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221395486.XU CN218119973U (en) | 2022-06-06 | 2022-06-06 | Electric auxiliary heating device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221395486.XU CN218119973U (en) | 2022-06-06 | 2022-06-06 | Electric auxiliary heating device and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218119973U true CN218119973U (en) | 2022-12-23 |
Family
ID=84498812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221395486.XU Active CN218119973U (en) | 2022-06-06 | 2022-06-06 | Electric auxiliary heating device and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218119973U (en) |
-
2022
- 2022-06-06 CN CN202221395486.XU patent/CN218119973U/en active Active
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