KR0127476B1 - Induction heating coil structure - Google Patents
Induction heating coil structureInfo
- Publication number
- KR0127476B1 KR0127476B1 KR1019940010746A KR19940010746A KR0127476B1 KR 0127476 B1 KR0127476 B1 KR 0127476B1 KR 1019940010746 A KR1019940010746 A KR 1019940010746A KR 19940010746 A KR19940010746 A KR 19940010746A KR 0127476 B1 KR0127476 B1 KR 0127476B1
- Authority
- KR
- South Korea
- Prior art keywords
- induction heating
- heating coil
- electronic cooker
- coil
- litz wire
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 37
- 230000006698 induction Effects 0.000 title claims abstract description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims 2
- 230000002500 effect on skin Effects 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 241001499740 Plantago alpina Species 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 241000237858 Gastropoda Species 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002420 orchard Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
Classifications
-
- 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
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Induction Heating (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
본 발명 전자조리기의 유도가열코일의 가열을 증대시키는 구조 및 방법은 전자조리기의 유도가열에 사용되는 코일에 있어서, 상호 교차되게 순차로 꼬아서 형성한 리츠선을 나선형으로 꼬아서 소정의 직경을 갖도록 구성된 것을 특징으로 하는 전자조리기의 유도가열코일의 가열을 증대시기는 구조로, 다수개의 동선으로 형성된 리츠선을 상호 교차되게 순차로 꼬아 형성하므로 리츠선 자체에 발생되는 맴돌이 전류가 상호 대응되게 작용하여 상세시키도록 하므로 리츠선자체에 맴돌이 전류가 발생하지 않도록하여 전자조리기의 유도가열코일의 가열을 증대시기는 유용한 것이다.The structure and method of increasing heating of the induction heating coil of the electronic cooker according to the present invention, in the coil used for the induction heating of the electromagnetic cooker, twisted Litz wire formed by sequentially crossing each other in a spiral to have a predetermined diameter. It is a structure that increases the heating of the induction heating coil of the electronic cooker, it is formed by twisting the LITZ wire formed by a plurality of copper wires in order to cross each other, so that the eddy current generated in the LITZ wire itself acts to correspond to each other It is useful to increase the heating of the induction heating coil of the electronic cooker by preventing the eddy current from occurring in the Ritz wire itself.
Description
제 1 도는 전자조리기의 원리를 나타낸 단면도.1 is a cross-sectional view showing the principle of the electronic cooker.
제 2 도는 종래의 유도가열코일의 사용상태도.2 is a state diagram used in the conventional induction heating coil.
제 3 도는 종래의 유도가열코일의 구조를 나타낸 사시도.3 is a perspective view showing the structure of a conventional induction heating coil.
제 4 도는 종래의 유도가열코일의 전류와 전계를 나타낸 파형도.4 is a waveform diagram showing a current and an electric field of a conventional induction heating coil.
제 5 도는 본 발명의 유도가열코일의 사용상태도로써.5 is a state diagram using the induction heating coil of the present invention.
제 6 도는 본 발명의 유도가열코일의 구조를 나타낸 부분확대도.6 is a partially enlarged view showing the structure of the induction heating coil of the present invention.
제 7 도는 본 발명의 유도가열코일의 전류와 전계를 나타낸 파형도.7 is a waveform diagram showing the current and the electric field of the induction heating coil of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : 세라믹판 3 : 유도가열코일2: ceramic plate 3: induction heating coil
4 : 나선형 리츠선 5 : 망사형 리츠선4: spiral ritz wire 5: mesh ritz wire
본 발명은 전자조리기에서 유도가열에 사용되는 코일에 관한 것으로, 특히 서로 반대 방향으로 꼬인나선형 리츠선(litz wire)들을 꼬아서 상기 리츠선에 맴돌이 전류(eddy current)가 발생하는 것을 방지하므로 인하여 가열효율을 높일 수 있는 전자조리기의 유도 가열코일의 가열을 증대시키는 구조 및 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil used for induction heating in an electronic cooker, and in particular, by twisting spiral litz wires twisted in opposite directions to prevent eddy currents from occurring in the litz wire. The present invention relates to a structure and a method for increasing heating of an induction heating coil of an electronic cooker capable of increasing efficiency.
일반적으로 전자조리기는 제 1 도에 도시된 바와 같이, 냄비를 놓기 위한 세라믹판 아래에 있는 유도가열코일(3)에 교류전류를 흘리면 자력선이 발생하여 그 자계속의 금속(냄비)(1)밀에서 맴돌이 전류(eddy current)가 흐르게 되어 상기 맴돌이 전류와 금속이 가지는 전기 저항에 의하여 주울열이 발생하게 되므로써 금속(냄비)(1)이 가열되는 것이다.Generally, as shown in FIG. 1, when an alternating current flows through an induction heating coil 3 under a ceramic plate for placing a pot, magnetic lines are generated and the metal (pot) of the magnetic cooker (1) The eddy current flows in and the Joule heat is generated by the eddy current and the electrical resistance of the metal, so that the metal (pot) 1 is heated.
종례에 상기 전자조리기의 유도가열코일(3)로는 제 2 도와 제 3 도에 도시된 바와 같이, 다수개의 동선을 한 방향으로 꼬은 원기둥의 나선형 리츠선(Litz wire)(4)이 사용되었으며, 상기 원기둥의 나선형리츠선(4)을 평평하게 누른 다음 달팽이 모양(와수형)으로 필요한 직경만큼 감아서 사용하였다. 상기나선형 리츠선(4)에 교류전류를 흘리면 제 4 도에 도시된 바와 같이, 한 방향으로 자계(H)가 반세하고,장기 자계(H)는 나선형 리츠선(4)에 흐르는 교류전류로 인하여 자속이 변하므로 랜츠의 법칙에 따라 기전력이 발생한다. 상기 기전력이 발생하면 상기 나선형 리츠선(4)에는 소용돌이 모양의 전류, 즉 맴돌이 전류(eddy current)가 발생하여 이 맴돌이 전류에 의하여 전력 손실이 발생한다.For example, as the induction heating coil 3 of the electronic cooker, as shown in FIGS. 2 and 3, a spiral ritz wire (Litz wire) 4 in which a plurality of copper wires are twisted in one direction is used. The cylindrical spiral line 4 was pressed flat and wound to the required diameter in a snail shape (orchard). When an alternating current flows through the spiral Litz wire 4, as shown in FIG. 4, the magnetic field H is swelled in one direction, and the long-term magnetic field H is caused by the alternating current flowing through the spiral Litz wire 4 Since the magnetic flux changes, electromotive force is generated in accordance with Lands' law. When the electromotive force is generated, a spiral current, that is, an eddy current, is generated in the spiral litz wire 4, and a power loss is generated by the eddy current.
이러한 종래의 전자조리기의 유도가열코일로 사용된 나선형 리츠선(4)은 교류전류가 흐를때 상기 나선형 리츠선자체에 맴돌이 전류가 발생하여 많은 전력 손실이 있다는 문제점이 있었다.The spiral Litz wire 4 used as the induction heating coil of the conventional electronic cooker has a problem in that a eddy current is generated in the spiral Litz wire itself when an alternating current flows, causing a lot of power loss.
본 발명의 목적은 상기와 같은 종래의 문제점을 해결하기 위한 것으로, 서로 상호교차되게 꼬인 나선형 리츠선(litz wire)들을 꼬아서 상기 리츠선에 맴돌이 전류(eddy curren)가 발생하는 것을 방지하므로인하여 가열효율을 높일 수 있는 전자조리기의 유도가열코일의 가열을 증대시기는 구조 및 방법의 구조를 제공하는 데 있다.SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional problems as described above, and to prevent eddy curren from occurring in the litz wire by twisting spiral litz wires intertwined with each other. An object of the present invention is to provide a structure of a method and a method of increasing heating of an induction heating coil of an electronic cooker capable of increasing efficiency.
이하 본 발명의 기술적 구성을 상세히 설명하면 다음과 같다.Hereinafter, the technical configuration of the present invention in detail.
본 발명 전자조리기의 유도가열코일의 구조는 제 5 도와 제 6 도에 도시된 바와 같이, 한 방향으로 꼬인 나선형 리츠선과 반대방향으로 꼬인 나선형 리츠선올 꼬은 원기둥의 망사형 리츠선(4)을 평평하게누른 다음 달팽이 모양(와수형)으로 필요한 직경만큼 감은 것을 그 기술적 구성상의 특징으로 한다.As shown in FIGS. 5 and 6, the structure of the induction heating coil of the electronic cooker flattens the spiral Litz wire twisted in one direction and the spiral Litz wire twisted in the opposite direction. It is then characterized by its technical construction, which is wound up to the required diameter in the shape of a snail (orchard).
이리한 본 발명 전자조리기의 유도가열코일의 구조는 제 7 도에 도시되는 바와 같이, 제 1,2 나선형리츠선(41,42)에 같은 방향으로 교류전류를 인가하면 제 1 나선형 리츠선(41)에는 한 방향으로 자계(H1)가 발생하고, 제 2 나선형 리츠선(42)에는 상기 자계(H1)과 반대 방향으로 자계(H2)가 발생하여장기 두자계(H1, H2)는 서로 상쇄되므로 상기 두자계(H1, H2)의 자속변화로 인하여 발생하는 기전력에 의하여 생기는 맴돌이 전류가 발생되지 않으므로 종래에 맴돌이 전류로 인한 전력 손실을 방지한다.As shown in FIG. 7, the structure of the induction heating coil of the electronic cooker according to the present invention has the first spiral LITZ line 41 when an alternating current is applied to the first and second spiral LITZ lines 41 and 42 in the same direction. The magnetic field H1 is generated in one direction, and the magnetic field H2 is generated in the second spiral litz wire 42 in a direction opposite to the magnetic field H1, so that the long term two magnetic fields H1 and H2 cancel each other out. Since no eddy current caused by electromotive force generated by the magnetic flux changes of the two magnetic fields H1 and H2 is generated, power loss due to eddy currents is conventionally prevented.
그러므로 제 1 도에 도시된 바와 같이, 냄비를 놓기 위한 세라믹판 아래에 있는 유도가열코일(3)을 본 발명의 망사형 리츠선(5)으로 대치하여 교류전류를 인가하면, 상기 망사형 리츠선(5)자체에는 일측으로 작용하는 자계(H1)와 타측으로 작용하는 자계(H2)가 상호 상쇄되어 맴돌이 전류가 발생되지 않아서 맴돌이 전류로 인한 전력 손실을 방지한다.Therefore, as shown in FIG. 1, when the induction heating coil 3 under the ceramic plate for placing the pot is replaced with the mesh type litz wire 5 of the present invention and an alternating current is applied, the mesh type litz wire (5) The magnetic field (H1) acting on one side and the magnetic field (H2) acting on the other side cancel each other so that no eddy current is generated, thereby preventing power loss due to eddy current.
또한, 달팽이 모양을 감긴 일정직경에서는 종래의 리츠선자체에서 발생되는 맴돌이 전류로 인한 전력손실양만큼 전류가 더 많이 발생되어 종래에 발생하는 자력선보다 많은 자력선이 발생하여 그 자계속의 금속(냄비)(1) 밑에는 맴돌이 전류(eddy current)가 종래보다 많이 흐른다. 상기 증가한 맴돌이 전류와 금속이 가지는 전기 저항에 의해 종래보다 많은 주율열이 발생하여 그 결과 금속(냄비)(1)이 가열되므로 종래의 유도가열코일인 나선형 리츠선보다 가열효율이 높다.In addition, a certain diameter wound around the snail shape generates more current by the amount of power loss due to the eddy current generated in the conventional Litz wire itself, resulting in more magnetic lines than the conventional magnetic lines. (1) Below, eddy current flows more than before. The increased eddy current and the electrical resistance of the metal generates more heat than conventional heat, and as a result, the metal (pot) 1 is heated, and thus the heating efficiency is higher than that of the conventional induction heating coil helical Litz wire.
이상에서 살펴본 바와 같이, 본 발명 전자조리기의 유도가열코일의 구조는 서로 반대 방향으로 꼬인나선형 리츠선(1itz wire)들을 꼬아서 상기 리츠선에 맴돌이 전류(eddy current)가 발생하는 것을 방지하므로 인하여 가열효율을 높이는 효과가 있다.As described above, the structure of the induction heating coil of the present invention cooks twisted spiral Litz wires in opposite directions to prevent eddy currents from occurring in the Litz wires. It is effective to increase efficiency.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940010746A KR0127476B1 (en) | 1994-05-17 | 1994-05-17 | Induction heating coil structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940010746A KR0127476B1 (en) | 1994-05-17 | 1994-05-17 | Induction heating coil structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR950033272A KR950033272A (en) | 1995-12-22 |
| KR0127476B1 true KR0127476B1 (en) | 1998-04-02 |
Family
ID=19383230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940010746A KR0127476B1 (en) | 1994-05-17 | 1994-05-17 | Induction heating coil structure |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0127476B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008072804A1 (en) * | 2006-12-14 | 2008-06-19 | Yong Jai Kwon | Heating coil in induction heating cooking apparatus |
-
1994
- 1994-05-17 KR KR1019940010746A patent/KR0127476B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008072804A1 (en) * | 2006-12-14 | 2008-06-19 | Yong Jai Kwon | Heating coil in induction heating cooking apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR950033272A (en) | 1995-12-22 |
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