KR20100084295A - Electic hot blast heater using high frequency induction heating - Google Patents

Electic hot blast heater using high frequency induction heating Download PDF

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KR20100084295A
KR20100084295A KR1020090003703A KR20090003703A KR20100084295A KR 20100084295 A KR20100084295 A KR 20100084295A KR 1020090003703 A KR1020090003703 A KR 1020090003703A KR 20090003703 A KR20090003703 A KR 20090003703A KR 20100084295 A KR20100084295 A KR 20100084295A
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South Korea
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pipe
heating unit
copper wire
induction heating
heating
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KR1020090003703A
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Korean (ko)
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KR101064408B1 (en
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정원식
정가영
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정원식
정가영
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
    • F24H3/081—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using electric energy supply
    • F24H3/082—The tubes being an electrical isolator containing the heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0052—Details for air heaters
    • F24H9/0073—Arrangement or mounting of means for forcing the circulation of air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2250/00—Electrical heat generating means
    • F24H2250/08—Induction

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)

Abstract

PURPOSE: An electric blower heater is provided to reduce heating time and improve thermal efficiency by employing induction heating. CONSTITUTION: An electric blower heater comprises a heating unit and blower fans(50,60). The heating unit comprises a metal pipe(20), a ceramic pipe, and a plurality of radiating plates(10). The metal material pipe has magnetism. A copper wire is spirally wound around the ceramic pipe which is inserted in the metal pipe. The radiating plates are inserted to the outside of the metal material pipe. The blower fan is formed in one side of the heating unit to cool the heating unit and transfer the heat generated in the heating unit.

Description

인덕션 가열 방식의 전기 온풍기{ELECTIC HOT BLAST HEATER USING HIGH FREQUENCY INDUCTION HEATING}ELECTIC HOT BLAST HEATER USING HIGH FREQUENCY INDUCTION HEATING}

본 발명은 전기 온풍기에 관한 것으로, 보다 상세하게는 고주파 유도 가열방식을 이용한 인덕션 전기온풍기에 관한 것이다.The present invention relates to an electric warmer, and more particularly, to an induction electric warmer using a high frequency induction heating method.

일반적으로 전기 온풍기의 구조를 살펴보면, 전기 히팅 코일을 통풍 통로에 설치하여 온풍을 발생한 다음 이 온풍을 실내로 나가게 함으로써 난방이 이루어지는 구조를 갖고 있다.In general, looking at the structure of the electric hot air heater, the electric heating coil is installed in the ventilation passage to generate a warm air and then has the structure that the heating is performed by letting the hot air out to the room.

그러나 이러한 종래의 전기 온풍기는, 전기 히팅 코일에 전류를 흘려 발열시키고 송풍팬으로 바람을 일으켜 온풍을 난방지역에 공급하는 원리를 채택하고 있기 때문에 전기 소모량이 큰 단점과, 송풍팬에서 형성된 바람이 전기 히팅 코일의 발열 온도를 떨어뜨리는 등 열손실이 많아 전기 소모량에 비해 에너지 효율이 떨어지는 단점이 있었다.However, such a conventional electric hot air heater has a disadvantage in that it consumes a large amount of electricity due to the principle of supplying warm air to a heating area by flowing a current through an electric heating coil and generating a wind with a blower fan. Many heat losses, such as lowering the heating temperature of the heating coil had a disadvantage in that the energy efficiency is lower than the electricity consumption.

따라서, 이러한 점을 감안하여 최근에는 요리기구등에서 주로 사용되던 고주파 유도 가열방식(일명 인덕션 가열방식)을 이용한 전기 온풍기가 발명되고 있다.Therefore, in consideration of this point, an electric hot air blower using a high frequency induction heating method (also known as an induction heating method), which is mainly used in cooking appliances, has been invented in recent years.

상기 고주파 유도 가열방식의 전기 온풍기는 유도코일측에 고주파 전류가 인가되면, 이 유도코일측에는 고주파 자기장이 발생하고, 상기 고주파 자기장에 의해 자성체 재질의 발열체에 생기는 와전류(맴돌이 전류)에 의해 발열체가 발열하고, 상기 발열체의 발열에 의해 그 내부를 흐르는 공기가 가열되어 송풍기에 의해 송풍되는 구조를 갖고 있다.When a high frequency current is applied to the induction coil side of the high temperature induction heating type electric heater, the high frequency magnetic field is generated on the induction coil side, and the heating element generates heat due to the eddy current (eddy current) generated in the heating element made of a magnetic material by the high frequency magnetic field. In addition, the air flowing therein is heated by the heat generation of the heating element, and has a structure in which the air is blown by the blower.

그러나, 종래의 이러한 고주파 유도 가열의 전기 온풍기는 그 구조가 복잡하고, 가열 효율이 떨어지며, 또한 일정온도까지 가열시키는데 시간이 오래 걸릴 뿐만 아니라, 전력소모도 큰 단점을 내포하고 있다.However, the conventional electric hot air blower of the high frequency induction heating is complicated in structure, poor in heating efficiency, and takes a long time to heat up to a constant temperature, and also has a large power consumption.

본 발명과 그 구성은 상이하지만, 고주파 유도 가열 방식을 이용한 인덕션 전기 온풍기로는 Although the present invention and its configuration are different, the induction electric heater using a high frequency induction heating method

특허 제827469호(고주파 유도가열 방식의 전기 온풍기)와Patent No. 827469 (Electric Heat Fan of High Frequency Induction Heating Method)

등록실용신안 제414996호(전기 온풍기용의 유도가열 발열체와 이를 이용한 온풍기)가 있다.Utility Model Registration No. 414996 (Induction heating element for electric hot air fan and hot air fan using the same).

본 발명은 고주파 유도 가열방식(인덕션)의 온풍기에 있어, 가열 구조를 개선함으로써, 종래의 인덕션 가열 방식의 구조에 비하여 그 구조가 매우 간단하면서도 열효율은 매우 높아지도록 한 것이다.The present invention is to improve the heating structure in the high temperature induction fan of the high frequency induction heating method (induction), so that the structure is very simple compared to the structure of the conventional induction heating method, the thermal efficiency is very high.

자성을 갖는 금속재파이프(20) 내측에 구리선(40)을 외주면에 나선형으로 감은 세라믹파이프(30)를 삽입 결합하며,Insert the ceramic pipe 30 wound spirally around the outer circumferential surface of the copper wire 40 inside the metal pipe 20 having magnetic properties,

상기 금속재파이프(20) 외측에는 다수개의 방열판(10)을 삽입 고정하여 가열부(100)를 조성하며,The heating pipe 100 is formed by inserting and fixing a plurality of heat sinks 10 to the outside of the metal pipe 20.

상기 가열부(100) 일측에는 가열부(100)를 냉각함과 동시에 가열부에서 발생한 열을 전달하는 송풍팬(50)(60)을 갖도록 하였다.One side of the heating unit 100 has a cooling fan (50, 60) for cooling the heating unit 100 and at the same time to transfer the heat generated from the heating unit.

상기에 있어서, 송풍팬은 방열판(10)을 냉각하는 제1송풍팬(50)과, 세라믹파이프(30)의 외주면에 감긴 구리선(40)을 냉각하는 제2송풍팬(60)으로 구성한다.In the above description, the blower fan includes a first blower fan 50 for cooling the heat sink 10 and a second blower fan 60 for cooling the copper wire 40 wound around the outer circumferential surface of the ceramic pipe 30.

상기에 있어서, 자성을 갖는 금속재파이프(20)에는 금속재파이프(20) 내측의 구리선(40)을 냉각하는 다수개의 공기유통구멍(21)을 갖도록 구성한다.In the above, the magnetic metal pipe 20 is configured to have a plurality of air flow holes 21 for cooling the copper wire 40 inside the metal pipe 20.

또한 타 실시예로 상기 방열판(10)에는 다수개의 금속재파이프(20)가 결합되도록 다수개의 결합 구멍(10)을 형성할 수도 있다.In another embodiment, a plurality of coupling holes 10 may be formed in the heat sink 10 so that a plurality of metal pipes 20 are coupled to each other.

본 발명의 온풍기는 인덕션 가열 방식이므로 종래의 전기 히팅 코일 방식에 비하여 가열 시간이 매우 빠르며, 열 효율이 매우 높아 전기 소비가 절감되는 잇점이 있다.Since the warm air of the present invention is an induction heating method, the heating time is very fast compared to the conventional electric heating coil method, and the thermal efficiency is very high, thereby reducing the power consumption.

또한 그 구조가 매우 간단하고, 고장날 염려가 거의 없어 일반 소비자들이 매우 편리하게 사용할 수가 있다.In addition, the structure is very simple, there is little fear of failure can be used by ordinary consumers very convenient.

자성을 갖는 금속재파이프(20) 내측에 구리선(40)을 외주면에 나선형으로 감은 세라믹파이프(30)를 끼워 결합하며,The ceramic pipe 30 wound in a spiral shape wound around the outer circumferential surface of the copper wire 40 inside the metal pipe 20 having magnetic properties,

상기 금속재파이프(20) 외측에는 다수개의 방열판(10)을 삽입 고정하여 가열부(100)를 조성하며,The heating pipe 100 is formed by inserting and fixing a plurality of heat sinks 10 to the outside of the metal pipe 20.

상기 가열부(100) 일측에는 가열부(100)를 냉각함과 동시에 가열부에서 발생한 열을 전달하는 송풍팬(50)(60)을 갖도록 하였다.One side of the heating unit 100 has a cooling fan (50, 60) for cooling the heating unit 100 and at the same time to transfer the heat generated from the heating unit.

상기에 있어서, 송풍팬은 방열판(10)을 냉각하는 제1송풍팬(50)과, 세라믹파이프(30)의 외주면에 감긴 구리선(40)을 냉각하는 제2송풍팬(60)으로 구성한다.In the above description, the blower fan includes a first blower fan 50 for cooling the heat sink 10 and a second blower fan 60 for cooling the copper wire 40 wound around the outer circumferential surface of the ceramic pipe 30.

상기에 있어서, 자성을 갖는 금속재파이프(20)에는 금속재파이프(20) 내측의 구리선(40)을 냉각하는 다수개의 공기유통구멍(21)을 갖도록 구성한다.In the above, the magnetic metal pipe 20 is configured to have a plurality of air flow holes 21 for cooling the copper wire 40 inside the metal pipe 20.

또한 타 실시예로 상기 방열판(10)에는 다수개의 금속재파이프(20)가 결합되도록 다수개의 결합 구멍(11)을 형성할 수도 있다.In another embodiment, a plurality of coupling holes 11 may be formed in the heat sink 10 so that a plurality of metal pipes 20 are coupled to each other.

이와 같은 구조를 갖는 본 발명을 보다 상세히 설명하면 다음과 같다.Hereinafter, the present invention having such a structure will be described in detail.

먼저, 일반적인 인덕션 히팅 방식을 설명하면,First, the general induction heating method,

전선(구리선)에 교류전기를 통하면 전선의 외측에는 자력선이 형성되며 자력 선에 자성이 있는 금속을 작용시키면 금속이 발열되는 현상을 자기유도 가열이라 하며, 이와 같이 자기유도 가열 방식으로 가열하는 코일을 인덕션 히팅코일이라 한다.Magnetic current lines are formed on the outside of the electric wire when AC electric wires are connected to the electric wire (copper wire). When a magnetic metal is applied to the magnetic wire, a phenomenon in which the metal generates heat is called magnetic induction heating. It is called induction heating coil.

한편, 본 발명은 구리선(40)을 원통 형상으로 둥글게 감고 그 외측에 자성을 띠는 금속재파이프(20)를 덧입혀 자성을 갖는 금속재파이프(20)가 자력선에 의해 발열 되도록 하며, 이를 방열판(10) 내측에 장착하여 가열부(100)로 활용토록 한 것이다.On the other hand, according to the present invention, the copper wire 40 is wound in a cylindrical shape, and the metal pipe 20 having magnetic properties is coated on the outside thereof so that the metal pipe 20 having magnetic properties is generated by magnetic lines, and the heat sink 10 ) To be mounted on the inner side to be utilized as the heating unit 100.

즉, 방열판(10)에 구멍(11)을 형성하고 상기 구멍(11)에 자성을 갖는 금속재파이프(20)의 양단을 고정하며, 상기 금속재파이프(20) 내측에는, 외주면에 나선형으로 구리선(40)이 감겨진 세라믹파이프(30)를 끼워 넣고, 상기 세라믹파이프(30) 및 방열판(10) 일측에 송풍팬(50)(60)를 설치토록 한 것이다.That is, a hole 11 is formed in the heat sink 10, and both ends of the metal pipe 20 having magnetic properties are fixed to the hole 11, and the copper wire 40 is spirally formed on an outer circumferential surface inside the metal pipe 20. ) Is inserted into the ceramic pipe 30 is wound, and the blower fan 50, 60 is installed on one side of the ceramic pipe 30 and the heat sink 10.

상기와 같은 가열부(100)는 일반 전열선(니크롬선)과 같이 전기를 가할시 저항에 의해 발열하는 것이 아니라, 전기 저항이 적은 보통의 전선인 구리선(40)에 교류전기를 가할 시, 자력선이 발생되며, 자력선에 금속이 작용할 시 발열되는 자기 유도 방식으로 발열되는 것이다.The heating unit 100 as described above does not generate heat by resistance when applying electricity like a general heating wire (nichrome wire), but when applying an alternating current to a copper wire 40 which is a normal electric wire having a low electric resistance, It is generated, it is generated by a magnetic induction method that generates heat when a metal acts on the magnetic field lines.

상기 구리선(40)에는 직접적인 열이 발생 되지 않으나, 원통형상으로 둥글게 세라믹파이프(30) 외주면에 감겨 있는 구리선(40)에 고주파를 발생하는 전기를 가할 시 구리선(40)에 발생하는 자력선에 의해 그 외측의 금속재파이프(20)는 발열되고, 상기 발열된 금속재파이프(20)의 열이 방열판(10)에 전달되고, 상기 방열판에 의하여 주위 공기가 뜨거워지게되므로, 이를 송풍팬(50)(60)으로 송풍하여 온풍시 키게 되는 것이다.Direct heat is not generated in the copper wire 40, but is applied by magnetic force lines generated in the copper wire 40 when applying electricity generating high frequency to the copper wire 40 wound around the outer surface of the ceramic pipe 30 in a cylindrical shape. The outer metal pipe 20 is heated, the heat of the heated metal pipe 20 is transferred to the heat sink 10, the ambient air is heated by the heat sink, so that the blowing fan (50, 60) Blowing by the warm air will be.

상기에 있어, 방열판(10)은 촘촘하게 구성되어 있으므로, 가열되는 표면적이 넓어지게 되어 열효율이 좋아지게 되며, 또한 바람이 손쉽게 통과되므로 매우 효과적인 송풍이 가능하게 된다.In the above, since the heat sink 10 is densely configured, the surface area to be heated is widened to improve the thermal efficiency, and also the wind is easily passed through, so that very effective blowing is possible.

한편, 상기 자력선에 의해 발열되는 금속재파이프(20)는 구리선(40)과 밀접되어 있음으로 열이 구리선(40)에 전달되어 구리선(40)을 발열시킬 수 있다.On the other hand, the metal pipe 20 generated by the magnetic force line is in close contact with the copper wire 40, the heat can be transferred to the copper wire 40 to heat the copper wire 40.

따라서, 구리선(40)이 발열 되는 것을 방지하기 위한 냉각수단이 필요한 바, 본 발명의 경우 구리선(40)이 감겨 있는 세라믹파이프(30) 일측에 제2송풍팬(60)을 설치함으로서, 세라믹파이프(30) 외주면에 나선형으로 감겨 있는 구리선(40)을 냉각시킬 수 있도록 하였다. Therefore, a cooling means for preventing the copper wire 40 from generating heat is required. In the present invention, by installing the second blowing fan 60 on one side of the ceramic pipe 30 on which the copper wire 40 is wound, the ceramic pipe (30) It was possible to cool the copper wire 40 wound spirally on the outer peripheral surface.

또한, 자성을 갖는 금속재파이프(20)에는 다수개의 공기유통 구멍(21)을 형성토록 함으로서, 상기 금속재파이프(20) 내측의 구리선(40)을 냉각토록 하였다.Further, by forming a plurality of air flow holes 21 in the magnetic metal pipe 20, the copper wire 40 inside the metal pipe 20 was cooled.

한편, 도면 부호에 있어 미설명부호 70은 케이스, 80은 송풍구, 90은 고주파발생회로이다.In the drawings, reference numeral 70 denotes a case, 80 a blower, and 90 a high frequency generation circuit.

한편, 방열판(10)에 금속재파이프(20)를 결합함에 있어서는 도2와 같이 방열판(10)에 1개의 금속재파이프(20)를 결합할 수도 있으며, 도4 내지 도5에서 보는 바와 같이 방열판에 다수개의 구멍(11)을 형성함으로서, 다수개의 금속재파이프(20)를 결합할 수도 있다.Meanwhile, in coupling the metal pipe 20 to the heat sink 10, one metal pipe 20 may be coupled to the heat sink 10, as shown in FIG. 2, and as shown in FIGS. By forming two holes 11, a plurality of metal pipes 20 can be joined.

상기에서 살펴본 바와 같이, 본 발명에 해당하는 인덕션 온풍기는 기존의 인 덕션 온풍기에 비하여 그 구조가 간단하고, 열효율이 높아 산업상 이용가능성은 충분하다 할 것이다.As described above, the induction warmer corresponding to the present invention has a simpler structure and higher thermal efficiency than the induction warmer of the related art.

도1은 본 발명의 개략적인 사용상태 단면도1 is a schematic cross-sectional view of the use state of the present invention

도2는 본 발명의 부분 분해 사시도2 is a partially exploded perspective view of the present invention;

도3은 본 발명의 부분 분해 단면도3 is a partially exploded cross-sectional view of the present invention.

도4는 본 발명의 타 실시예의 개략적인 사용상태 단면도Figure 4 is a schematic cross-sectional view of another embodiment of the present invention

도5는 도4 발명의 부분 분해 사시도Figure 5 is a partially exploded perspective view of the invention of Figure 4

* 도면부호* Drawing code

10 : 방열판 20 : 금속재파이프 21 : 구멍10 heat sink 20 metal pipe 21 hole

30 : 세라믹파이프 40 : 구리선30: ceramic pipe 40: copper wire

50 : 제1송풍팬 60 : 제2송풍팬50: first blowing fan 60: second blowing fan

70 : 케이스 80 : 송풍구 90 : 인덕션 히팅 코일70: case 80: blower 90: induction heating coil

Claims (4)

자성을 갖는 금속재파이프(20) 내측에 구리선(40)을 외주면에 나선형으로 감은 세라믹파이프(30)를 끼워 결합하며,The ceramic pipe 30 wound in a spiral shape wound around the outer circumferential surface of the copper wire 40 inside the metal pipe 20 having magnetic properties, 상기 금속재파이프(20) 외측에는 다수개의 방열판(10)을 삽입 고정하여 가열부(100)를 조성하며,The heating pipe 100 is formed by inserting and fixing a plurality of heat sinks 10 to the outside of the metal pipe 20. 상기 가열부(100) 일측에는 가열부(100)를 냉각함과 동시에 가열부에서 발생한 열을 전달하는 송풍팬(50)(60)을 갖도록 한 것을 특징으로 하는 인덕션 가열 방식의 전기 온풍기One side of the heating unit 100 has an induction heating type electric hot air blower, characterized in that it has a cooling fan (50, 60) for cooling the heating unit 100 and at the same time to transfer the heat generated from the heating unit. 제1항에 있어서, 송풍팬은 방열판(10)을 냉각하는 제1송풍팬(50)과, 세라믹파이프(30)의 외주면에 감긴 구리선(40)을 냉각하는 제2송풍팬(60)으로 구성토록 한 것을 특징으로 하는 인덕션 가열 방식의 전기 온풍기The blower fan of claim 1, wherein the blower fan comprises a first blower fan 50 for cooling the heat sink 10, and a second blower fan 60 for cooling the copper wire 40 wound around the outer circumferential surface of the ceramic pipe 30. Induction heating electric hot air heater, characterized in that 제1항에 있어서, 자성을 갖는 금속재파이프(20)에는 금속재파이프(20) 내측의 구리선(40)을 냉각토록 하는 다수개의 공기유통구멍(21)을 갖는 것을 특징으로 하는 인덕션 가열 방식의 전기 온풍기The induction heating type electric hot air blower according to claim 1, wherein the magnetic metal pipe (20) has a plurality of air flow holes (21) for cooling the copper wire (40) inside the metal pipe (20). 제1항에 있어서, 상기 방열판(10)에는 다수개의 금속재파이프(20)가 결합되도록 다수개의 결합 구멍(11)을 형성토록 한 것을 특징으로 하는 인덕션 가열 방식 의 전기 온풍기The electric heat blower of claim 1, wherein a plurality of coupling holes (11) are formed in the heat sink (10) to couple the plurality of metal pipes (20).
KR1020090003703A 2009-01-16 2009-01-16 Electic hot blast heater using high frequency induction heating KR101064408B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101311746B1 (en) * 2013-07-26 2013-09-26 이진성 Rod shaped heat generating induction heater
CN110307639A (en) * 2019-07-05 2019-10-08 沈阳磁力通能源技术有限公司 A kind of electromagnetic induction hot air apparatus
WO2020238765A1 (en) * 2019-05-24 2020-12-03 周哲明 Electric heating heat exchange structure and electric heater

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KR20160094121A (en) 2015-01-30 2016-08-09 이진성 Variable heat induction heater

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Publication number Priority date Publication date Assignee Title
KR200164727Y1 (en) 1999-07-19 2000-02-15 황석근 Heat-wind installation being used by high frequency induction heating
KR200414996Y1 (en) 2006-02-10 2006-04-26 김성일 Induction heating element for heater and heater thereof
KR100768704B1 (en) 2006-05-24 2007-10-23 박용자 Hot blast heater using a high frequency induction heating
KR100827469B1 (en) 2006-11-10 2008-05-06 김방배 Electic hot blast heater using high frequency induction heaing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101311746B1 (en) * 2013-07-26 2013-09-26 이진성 Rod shaped heat generating induction heater
WO2020238765A1 (en) * 2019-05-24 2020-12-03 周哲明 Electric heating heat exchange structure and electric heater
CN110307639A (en) * 2019-07-05 2019-10-08 沈阳磁力通能源技术有限公司 A kind of electromagnetic induction hot air apparatus

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