KR20100110545A - Electric hot air fan using high frequency induction heating - Google Patents
Electric hot air fan using high frequency induction heating Download PDFInfo
- Publication number
- KR20100110545A KR20100110545A KR1020090028927A KR20090028927A KR20100110545A KR 20100110545 A KR20100110545 A KR 20100110545A KR 1020090028927 A KR1020090028927 A KR 1020090028927A KR 20090028927 A KR20090028927 A KR 20090028927A KR 20100110545 A KR20100110545 A KR 20100110545A
- Authority
- KR
- South Korea
- Prior art keywords
- heating element
- heating
- electric
- heat
- electric hot
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 72
- 230000006698 induction Effects 0.000 title abstract description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000004907 flux Effects 0.000 claims abstract description 13
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000005291 magnetic effect Effects 0.000 claims description 16
- 238000005485 electric heating Methods 0.000 claims description 4
- 239000003779 heat-resistant material Substances 0.000 claims description 3
- 229920006325 Depron Polymers 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 229910001120 nichrome Inorganic materials 0.000 abstract description 5
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/06—Arrangement or mounting of electric heating elements
- F24C7/062—Arrangement or mounting of electric heating elements on stoves
-
- 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
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds
-
- 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
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/362—Coil arrangements with flat coil conductors
-
- 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
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/44—Coil arrangements having more than one coil or coil segment
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- General Induction Heating (AREA)
Abstract
Description
The present invention relates to an electric hot air fan using high frequency induction heating.
In general, the electric warmer has a heat transfer means for converting electrical energy into thermal energy and a blowing structure for passing air through the heat storage material.
The heating means is a nichrome heating wire alloyed with nickel and chromium.
Indirect heating is performed by flowing a current through a conductor with strong resistance such as nichrome wire.
In other words, resistance heating using resistance is heating by directly energizing a heating wire of a certain length and size.
Electricity is a phenomenon in which a heating wire called nichrome wire is resisted as it passes through a metal structure material, and the kernels of the resisted electrons are converted into energy called heat.
The generated energy is blown into the blower to become an electric hot air blower.
The present invention relates to an electric hot air fan using induction heating, and more particularly, to an electric hot air fan using a heat generating structure that generates heat by an alternating magnetic flux generated from an induction coil.
In general, the heat required for living is obtained by supplying current to coal oil gas or electric resistance.
However, as the standard of living increases, electric heating devices for household work using electricity do not consume oxygen, and thus the use of them is increasing due to the characteristics of maintaining a comfortable and fresh room and ease of use.
Among the heating devices using all electricity, the heating device using high frequency induction heating is more efficient than the heating devices using other electric heating efficiency, which has the advantage of reducing the electricity consumption and reducing the electric bill, but it is mainly used for industrial purposes. It has been used in recent years and has been used in electric ranges or rice cookers.
Heating element using induction heating is made in the form of plate or tube, so it is not suitable to generate high heat in a short time because of high power consumption.
In terms of technology economic feasibility, it is less competitive in terms of power consumption because it consumes more power than an electric hot air fan using a nichrome wire.
There have been attempts to produce electric hot air fans using induction heating in various forms at home and abroad, but all have failed, and so far there has been no electric hot air fans using induction heating worldwide.
Technically, the biggest challenge to be solved in induction heating is to adjust the resonant frequency according to the use of ferromagnetic iron or metal material containing iron.
Here, resonance occurs when the frequency of the force periodically applied from the outside approaches the inherent frequency of vibration. When a device is shocked from the outside, it is ringing at its own frequency. Mostly refers to LC resonant circuit, and the resonant frequency generated here
It is used to catch a specific frequency among several frequencies or to make an oscillation.
Theoretically, everyone in electrical engineering knows that it is useful for local heating in industrial applications. Induction heating is frequently used in microwave ovens or rice cookers for homes, but it is difficult to match the resonant frequency when it is used as a heating element by heating the whole plate rather than local heating. In other words, a microwave oven consumes 1.5Kw ~ 1.8Kw per hour and 1.4Kw of electric rice cooker is required. It has been proved by experiment that using the resonant frequency can save more than 30%. The resonant frequency is important because the resonant frequency of the heating element has a direct influence on the depth.
The heating rate of the heating element and the depth of the heating layer are determined by the output power and the generator frequency.
To this end, the present invention is a power supply for supplying an alternating current and an induction coil for generating an alternating magnetic flux by the current flows and a heating element that is generated by the alternating magnetic flux is made of a heat-resistant material, such as a round rod quartz glass ceramic. It is a stainless steel material containing iron or iron, which is a ferromagnetic material with high heat generating efficiency. And forcibly blows heat generated when the heating element generates heat to the AC fan.
As a result of failing heat loss while indirectly heating the heat of a heating element indirectly heated to a heating element worldwide, the present invention improves thermal efficiency by using direct heat of a heating element.
The heating rate and the heating depth of the heating element are the resonance frequency which is determined by the output power and the generator frequency.
Freeze L and convert C, or freeze C and convert L. In other words, by varying the inductance, the two resistors find the same frequency.
First: Many spherical heating elements can heat up in the spherical shape instantaneously when they generate heat, and many spherical heating elements generate high temperature and heat efficiency is high, so there is little heat loss. The same effect can be achieved with ½ power. The heating element has the same effect as the heating element in the form of a sphere (ball or hexahedron, octahedron, withdrawal semi-conductor, wire mesh circular coil, and wire mesh plane (largeta type)).
Second: The structure is simple, so the product can be realized with low production cost.
Third, we can keep pace with the paradigm of the era of low carbon green growth.
In order to achieve the above object, a power supply unit for supplying an alternating current, an induction coil for generating an alternating magnetic flux through the current, and a heating element generated by the alternating magnetic flux include a round rod-type quartz glass, ceramic, dephron, etc. It is a stainless steel material containing iron or iron that is a ferromagnetic material with high heat generation efficiency in a barrel made of heat-resistant material. It is composed of the same effect as the heating element of the induction heating is heated by the hysteresis loss and eddy current loss.
Hysteresis loss occurs only in magnetic bodies, and magnetic molecules constituting the magnetic bodies generate heat by rotational vibration in alternating magnetic flux.
In other words, the energy loss per unit volume is generated when the alternating magnetic flux is repeated once and the area surrounded by the hysteresis curve is generated. An eddy current loss is a phenomenon in which an eddy current is generated on the surface of a conductor placed in an alternating magnetic flux in a direction to counteract the alternating magnetic flux and is generated by P = i 2 × R by this current. Where P: power i represents current R: silver resistance.
In order to increase the magnetic history loss, the temperature of the heating element is raised to the maximum with low power by implementing a frequency of 50KHz or higher than the 20KHz frequency used to increase the thermal efficiency of the spherical heating element rather than local heating. In order to increase the eddy current loss, the circuit is configured to minimize the current. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 2, the electric warmer using the induction heating according to the present invention is generated by the
1.The small, medium and large electric hot air blower can be manufactured by the original technology of the electric hot air blower according to the present invention.
2. It is applicable to electric stove, electric range, rice cooker, food waste dryer, electric heater, electric oven, floor ash temperature heating and electric boiler.
3. All electrical equipment that generates heat in electrical products can be produced at low power.
1 is a simplified block diagram of a conventional induction heating electric hot air blower
2 is a block diagram of an induction heating electric warmer according to the present invention
3 is a block diagram of an induction heating spherical heating device according to the present invention
Figure 4 is a simplified configuration of the induction heating pull-out semi-heating device according to the present invention
5 is a schematic diagram of a heating device of an induction heating pulley, a wire mesh coil, and a wire mesh plane (large-type type) according to the present invention.
[Description of Symbols for Main Drawings]
10: power supply
20: induction coil
30: heating element
40: blower
50: cover
60: full case
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090028927A KR20100110545A (en) | 2009-04-03 | 2009-04-03 | Electric hot air fan using high frequency induction heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090028927A KR20100110545A (en) | 2009-04-03 | 2009-04-03 | Electric hot air fan using high frequency induction heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20100110545A true KR20100110545A (en) | 2010-10-13 |
Family
ID=43131130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020090028927A KR20100110545A (en) | 2009-04-03 | 2009-04-03 | Electric hot air fan using high frequency induction heating |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20100110545A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160003464A (en) * | 2014-07-01 | 2016-01-11 | 민후 오 | Induction type heater |
-
2009
- 2009-04-03 KR KR1020090028927A patent/KR20100110545A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160003464A (en) * | 2014-07-01 | 2016-01-11 | 민후 오 | Induction type heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |