KR0162407B1 - Core for preventing electromagnetic interference of induction heating cooking equipment - Google Patents
Core for preventing electromagnetic interference of induction heating cooking equipment Download PDFInfo
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- KR0162407B1 KR0162407B1 KR1019950032841A KR19950032841A KR0162407B1 KR 0162407 B1 KR0162407 B1 KR 0162407B1 KR 1019950032841 A KR1019950032841 A KR 1019950032841A KR 19950032841 A KR19950032841 A KR 19950032841A KR 0162407 B1 KR0162407 B1 KR 0162407B1
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- South Korea
- Prior art keywords
- core
- induction heating
- heating cooking
- product
- electromagnetic interference
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 27
- 230000006698 induction Effects 0.000 title claims abstract description 24
- 238000010411 cooking Methods 0.000 title claims abstract description 22
- 230000005291 magnetic effect Effects 0.000 claims abstract description 21
- 239000000696 magnetic material Substances 0.000 claims abstract description 7
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 2
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 18
- 230000004907 flux Effects 0.000 abstract description 13
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 229910017052 cobalt Inorganic materials 0.000 description 5
- 239000010941 cobalt Substances 0.000 description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002470 thermal conductor Substances 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
- H05B6/1254—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements using conductive pieces to direct the induced magnetic field
-
- 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
- H05B6/365—Coil arrangements using supplementary conductive or ferromagnetic pieces
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Cookers (AREA)
Abstract
본 발명은 유도가열조리기기의 전자파 장애 방지용 코아에 관한 것으로, 종래에는 워킹코일에 교류를 인가하여 발생되는 전자파의 누설을 페라이트 코아를 설치하여 방지함으로써 페라이트 코아가 상대적으로 자속밀도와 자속을 흡수하는 흡수율이 적어 흡수율을 향상시키기 위해서는 부피를 증가시켜야 하고, 또한 페라이트 코아의 강도가 약해서 작은 충격에도 깨지기 쉬우므로 별도의 구조물을 설치해야 하며, 재질이 상대적으로 무겁고 부피도 커서 구조물에 코아를 설치시 실리콘과 같은 접착제를 사용해야 하므로 제품의 생산성을 저하시킬 뿐만 아니라 제품 원가를 상승시키는 문제점이 있었는 바, 본 발명은 페라이트 코아를 비정질합금 자성재료로 코아를 형성하여 설치함으로써, 코아의 부피를 감소시켜 제품의 콤팩트화를 이루고, 원자재가격의 감소로 제품원가를 저하시키며, 또한 코아 설치를 간소화하여 제품의 생산성을 향상시킬 수 있도록 한 것이다.The present invention relates to a core for preventing electromagnetic interference of an induction heating cooking apparatus. In the related art, a ferrite core relatively absorbs magnetic flux density and magnetic flux by preventing the leakage of electromagnetic waves generated by applying alternating current to a working coil by installing a ferrite core. In order to improve the absorption rate due to the low absorption rate, the volume must be increased. Also, because the strength of the ferrite core is fragile and fragile, it must be installed in a separate structure. Since it is necessary to use an adhesive such as to lower the productivity of the product, as well as increase the cost of the product, the present invention is formed by forming a core of ferrite core with amorphous alloy magnetic material, by reducing the volume of the core of the product Compact and raw materials Degrade the product cost price of a loss, also it will have to improve productivity by streamlining the core of the product installation.
Description
제1도는 유도가열조리기기의 열원이 발생되는 구조 및 원리를 도시한 단면도.1 is a cross-sectional view showing the structure and principle of generating a heat source of the induction heating cooker.
제2도는 페라이트코아가 장착된 유도가열조리기기를 도시한 것으로,2 shows an induction heating cooking apparatus equipped with a ferrite core,
(a)는 단면도.(a) is a cross-sectional view.
(b)는 페라이트지지부재의 단면도.(b) is a sectional view of a ferrite support member.
제3도는 유도가열조리기기에서 페라이트코아의 작용을 도시한 작용도.3 is a diagram showing the action of ferrite cores in induction heating cooking equipment.
제4도는 본 발명의 유도가열조리기기의 전자파장애방지용 아몰퍼스코아를 도시한 것으로,Figure 4 shows an amorphous fusco for preventing electromagnetic interference of the induction heating cooking apparatus of the present invention,
(a)는 단면도.(a) is a cross-sectional view.
(b)는 평면도.(b) is a plan view.
제5도는 본 발명의 아몰퍼스코아 제조를 도시한 단면도.5 is a cross-sectional view showing the production of amorphous perscore of the present invention.
제6도는 아몰퍼스 및 결정질금속재료의 원자배열모형을 도시한 것으로,6 shows an atomic arrangement model of amorphous and crystalline metal materials.
(a)는 결정질금속재료.(a) is a crystalline metal material.
(b)는 아몰퍼스.(b) is amorphous.
제7도는 철계와 코발트계 아몰퍼스코아를 성층한 아몰퍼스코아를 도시한 것으로,FIG. 7 shows Amorphouscores stratified of iron-based and cobalt-based Amorphouscores,
(a)는 평면도.(a) is a plan view.
(b)는 정면도.(b) is a front view.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 용기 2 : 워킹코일1: container 2: working coil
3 : 용기지지부재 3a : 코아홈3: container support member 3a: core groove
3b : 코아고정용리브 6 : 아몰퍼스코아3b: core fixing rib 6: amorphous core
본 발명은 유도가열조리기기의 전자파장애방지용 코아에 관한 것으로, 특히 유도가열조리기기의 용기 가열시에 발생되는 전자파의 누설을 보다 효율적으로 차단하여 용기내부로 유도하고 제품의 크기를 소형화할 수 있는 유도가열조리기기의 전자파장애방지용 코아에 관한 것이다.The present invention relates to a core for preventing electromagnetic interference of an induction heating cooking device, and more particularly, to effectively prevent leakage of electromagnetic waves generated during the heating of a container of the induction heating cooking device to guide the inside of the container and to reduce the size of the product. It relates to a core for preventing electromagnetic interference of induction heating cooking equipment.
일반적으로 유도가열밥솥 등의 유도가열조리기기에 열원이 공급되는 구조와 원리는, 제1도에 도시한 바와 같이, 원통형을 이루도록 동선인 워킹코일(2)이 형성되어 있고, 상기 워킹코일(2)의 내부에 자성체인 원통형의 용기(1)가 삽입되어 있는 구조로 되어 있다.In general, the structure and principle that the heat source is supplied to an induction heating cooking equipment such as an induction heating rice cooker, as shown in Figure 1, the working coil (2) is formed in a copper wire to form a cylindrical, the working coil (2) The cylindrical container 1 which is a magnetic substance is inserted in the inside of ().
상기한 바와 같이 이루어진 구조에 고주파 교류전류를 워킹코일(2)에 인가하게 되면 워킹코일(2)의 주변에 자속이 변화하는 자장이 형성되며, 상기 자속이 변화하는 자장이 자성체인 용기(1)내부로 흐르게 되면 용기(1)내부로 흐르는 자속의 주변으로 와전류(Eddy Current)가 유도되며 이때 발생되는 주울열을 이용하여 용기(1)를 가열하게 된다.When a high frequency AC current is applied to the working coil 2 in the structure formed as described above, a magnetic field in which magnetic flux changes is formed around the working coil 2, and the magnetic field in which the magnetic flux changes is a magnetic body 1. When it flows inside, Eddy current is induced to the periphery of the magnetic flux flowing inside the container 1, and the container 1 is heated using Joule heat generated at this time.
그러나 상기한 바와 같은 구조는 교류전류에 의해 발생되는 자속이 용기(1)의 하부면으로 누설되어 용기(1)주변에 장착되어 있는 금속물질의 다른 부품들이 가열되어 오동작을 일으킬 우려가 있고, 또한 누설자속에 의한 전자파의 장애가 발생되어 에너지효율을 저하시키는 문제점이 있었다.However, the structure as described above may cause the magnetic flux generated by the alternating current to leak into the lower surface of the container 1 and cause other components of the metallic material mounted around the container 1 to heat up and cause malfunction. Disruption of electromagnetic waves due to leakage magnetic flux has occurred, and there is a problem of lowering energy efficiency.
상기한 바와 같은 문제점을 개선하기 위하여 종래에는, 제2도에 도시한 바와 같이, 워킹코일(2)의 상부에 용기(1)를 지지하는 용기지지부재(3)를 설치하고, 워킹코일(2)하부에는 성자성체인 페라이트코아(4)를 지지하는 페라이트지지부재(5)를 설치하며, 상기 페라이트지지부재(5)에 90°의 간격으로 코아홈(5a)을 형성하고, 상기 코아홈(5a)에 실리콘과 같은 접착제를 도료하여 페라이트코아(4)를 접착하여 설치한 구조로 이루어져 있다.In order to improve the above problems, conventionally, as shown in FIG. 2, a container support member 3 supporting the container 1 is provided on the top of the working coil 2, and the working coil 2 is provided. The ferrite support member 5 supporting the ferrite core 4, which is a magnetic material, is installed at the bottom thereof, and the core groove 5a is formed in the ferrite support member 5 at an interval of 90 °, and the core groove ( It is composed of a structure in which a ferrite core 4 is adhered and installed by coating an adhesive such as silicone on 5a).
상기 실리콘의 접착제가 굳는 시간은 보통 24시간을 넘게 된다.The time for the silicone adhesive to harden is usually more than 24 hours.
상기한 바와 같은 종래의 구조는, 제3도에 도시한 바와 같이, 누설되는 자속의 흐름을 상자성체인 페라이트코아(4)를 이용하여 용기(1)내부로 유도하여 자속의 누설을 억제함으로써 주변부품에 대한 전자파의 장애 및 다른 부품의 가열을 방지할 뿐만 아니라 에너지의 효율을 향상시키도록 하고 있다.As shown in FIG. 3, the conventional structure as described above guides the flow of the leaked magnetic flux to the inside of the container 1 by using a ferrite core 4, which is a paramagnetic, to suppress the leakage of magnetic flux. In addition to preventing the interference of electromagnetic waves and heating of other components to improve the efficiency of energy.
그러나 상기한 바와 같은 구조는 페라이트코아(4)의 강도가 약해서 작은 충격에도 깨지기 쉬우므로 별도의 페라이트지지부재(5)를 설치해야 하며, 또한 페라이트코아(4)는 상대적으로 자속밀도와 자속을 흡수하는 흡수율이 적어 흡수율을 향상시키기 위해서는 부피를 증가시켜야 하고, 재질이 상대적으로 무겁고 부피도 커서 페라이트지지부재(5)에 페라이트코아(4)를 설치시 실리콘과 같은 접착제를 사용해야 하므로 제품의 생산성을 저하시킬 뿐만 아니라 제품원가를 상승시키는 문제점이 있었다.However, the structure as described above, because the strength of the ferrite core 4 is fragile and easy to break even a small impact, it is necessary to install a separate ferrite support member (5), and also the ferrite core (4) relatively absorbs magnetic flux density and magnetic flux As the absorption rate is small, the volume must be increased in order to improve the absorption rate, and the material is relatively heavy and the volume is large. In addition to raising the cost of the product was a problem.
따라서 본 발명의 목적은 유도가열조리기기의 용기 가열시에 발생되는 전자파의 누설을 보다 효율적으로 차단하여 용기내부로 유도하고 제품의 크기를 소형화할 수 있는 유도가열조리기기의 전자파장애방지용 코아를 제공함에 있다.Accordingly, an object of the present invention is to provide a core for preventing electromagnetic interference of an induction heating cooking device capable of more efficiently blocking the leakage of electromagnetic waves generated when heating the container of the induction heating cooking device, leading to the inside of the container and miniaturizing the size of the product. Is in.
상기한 바와 같은 본 발명의 목적을 달성하기 위하여 워킹코일이 감겨지고 자성체인 용기를 지지하는 용기지지부재에 코아홈 및 코아고정용리브를 형성하고, 상기 코아홈에 비정질합금 자성재료인 아몰퍼스코아를 삽입하여 상기 코아고정용리브에 장착하여 구성함을 특징으로 하는 유도가열조리기기의 전자파장애방지용 코아가 제공된다.In order to achieve the object of the present invention as described above, forming a core groove and core fixing ribs in a container support member for winding a working coil and supporting a container which is a magnetic body, and amorphous alloy magnetic material Amorphous core in the core groove. There is provided an electromagnetic interference preventing core of the induction heating cooking apparatus, characterized in that the insertion and mounting to the core fixing ribs.
또한 상기 코아홈은 띠형으로 형성하고 상기 아몰퍼스코아를 띠형으로 형성하여 설치함을 특징으로 하는 유도가열조리기기의 전자파장애방지용 코아가 제공된다.In addition, the core groove is provided in the form of a strip and the amorphous perforated core is provided for preventing electromagnetic interference of the induction heating cooking apparatus, characterized in that the installation.
또한 상기 코아고정용리브는 상기 코아홈의 측부에 ㄱ자형으로 형성됨을 특징으로 하는 유도가열조리기기의 전자파장애방지용 코아가 제공된다.In addition, the core fixing ribs are provided with a core for preventing electromagnetic interference of the induction heating cooking apparatus, characterized in that formed in the side of the core grooves in the a-shaped.
이하 본 발명의 유도가열조리기기의 전자파장애방지용 코아를 첨부도면에 도시한 실시예에 따라 설명하면 다음과 같다.Hereinafter, the core for preventing electromagnetic interference of the induction heating cooking apparatus of the present invention will be described according to the embodiment shown in the accompanying drawings.
본 발명의 유도가열조리기기의 전자파장애방지용 코아는, 제4도에 도시한 바와 같이, 내부에 워킹코일(2)이 감겨지고 자성체인 용기(1)를 지지하는 원통형의 용기지지부재(3)에 코아홈(3a)을 형성하고, 상기 코아홈(3a)의 측부에 코아고정용리브(3b)를 형성하며, 상기 코아홈(3a)에 비정질합금 자성체재료인 아몰퍼스코아(6;AMORPHOUS CORE)를 삽입하여 상기 코아고정용리브(3b)에 장착하여 설치한다.The core for preventing electromagnetic interference of the induction heating cooking apparatus of the present invention, as shown in FIG. 4, has a cylindrical container support member (3) in which a working coil (2) is wound inside and supports a container (1) which is a magnetic body. A core groove 3a is formed in the core groove, and a core fixing rib 3b is formed on the side of the core groove 3a, and an amorphous alloy magnetic material is formed in the core groove 3a (AMORPHOUS CORE). Insert and install it to the core fixing rib (3b).
상기 코아홈(3a)은 90°간격으로 4개 형성함이 바람직하고, 형상은 띠형으로 형성함이 바람직하다.The core groove (3a) is preferably formed of four at intervals of 90 °, the shape is preferably formed in a band shape.
또한 상기 코아고정용리브는 상기 코아홈(3a)의 측부에 형성하고, 형상은 ㄱ자형으로 수개 형성함이 바람직하다.In addition, the core fixing rib is formed on the side of the core groove (3a), it is preferable that the shape is formed in the ㄱ -shaped several.
상기한 바와 같은 본 발명의 유도가열조리기기의 전자파장애방지용 코아의 작용효과를 설명하면 다음과 같다.Referring to the effect of the electromagnetic interference preventing core of the induction heating cooking apparatus of the present invention as described above are as follows.
본 발명의 유도가열조리기기의 전자파장애방지용 코아로 사용되는 아몰퍼스는 비정질합금의 자성재료로서, 제5도에 도시한 바와 같이, 고속으로 회전하고 있는 구리 등으로 만든 고열전도체인 냉각휠(7)에 1000000°C/sec 이상의 냉각속도로 액체상태의 금속을 냉각시켜 액체금속(8)이 고체상태의 원자배열을 미처 갖추기 전에 얻은 재료이며 원자배열은, 제6도의 (b)에 도시한 바와 같이, 액체상태와 유사한 무질서한 구조를 갖기 때문에 투자율이 강한 특수한 여러 성질을 띠는 자성체의 재료이다.The amorphous material used as the core for preventing electromagnetic interference of the induction heating cooking apparatus of the present invention is a magnetic material of an amorphous alloy, and as shown in FIG. 5, a cooling wheel (7) which is a high thermal conductor made of copper or the like rotating at high speed. Is a material obtained before cooling the liquid metal at a cooling rate of 1000000 ° C / sec or more before the liquid metal (8) has a solid atomic arrangement, and the atomic arrangement is as shown in Fig. 6B. As a result, it is a material of magnetic material with special characteristic with strong permeability because it has disordered structure similar to liquid state.
상기한 바와 같은 아몰퍼스는 사용되는 액체금속의 재료에 따라 코발트계와 철계로 나누어지며, 페라이트에 대비한 아몰퍼스의 특성은 아래의 (표1)에 도시한 바와 같다.Amorphous as described above is divided into cobalt-based and iron-based according to the material of the liquid metal used, the properties of the amorphous relative to ferrite is shown in Table 1 below.
상기 표1에 도시한 바와 같이 아몰퍼스는 페라이트에 비해 투자율 및 자속밀도가 매우 높고, 유연성이 좋고 가벼우며, 동일한 성능을 발휘하는 상태에서 부피가 작다.As shown in Table 1, amorphous has a very high permeability and magnetic flux density, good flexibility, light weight, and small volume in the state of exhibiting the same performance as ferrite.
또한 상기 아몰퍼스의 코발트계와 철계는 자속밀도와 투자율면에서 각각 장,단점을 지니고 있기 때문에 코발트계와 철계의 아몰퍼스를 유효 적절한 성능을 낼 수 있도록 조절하여 혼합성층하면 코아의 특성조정이 가능하다.In addition, the cobalt-based and iron-based amorphous metals have advantages and disadvantages in terms of magnetic flux density and magnetic permeability, respectively.
제7도의 (a)는 유도가열조리기기에 사용하기 위하여 코발트계와 철계의 아몰퍼스를 혼합성층한 일실시예를 도시한 것으로, 이에 도시한 바와 같이, 철(Fe)계 아몰퍼스와 코발트(Co)계 아몰퍼스를 띠모양으로 얇게 박대화하여 여러장 서로 성층한 뒤 내열성이 우수하고 전기저항이 큰 절연물로 코팅하여 형성한다.FIG. 7 (a) illustrates an embodiment in which cobalt-based iron amorphous mixtures are laminated for use in an induction heating cooking apparatus, and as shown therein, iron (Fe) -based amorphous and cobalt (Co) Thin amorphous amorphous thin strips are formed by coating them with an insulating material having excellent heat resistance and high electrical resistance.
상기한 바와 같이 성층하고 코팅한 아몰퍼스코아를 상기 용기지지부재(3)에 형성된 코아홈(3a)에 설치하게 된다.As described above, the layered and coated amorphous cores are installed in the core grooves 3a formed in the container support member 3.
상기한 바와 같이 종래의 페라이트로 사용하던 코아를 아몰퍼스의 코아로 대체하여 사용하게 됨으로써 얻어지는 본 발명의 효과는 같은 능력을 발휘할 수 있는 상태에서 사용되는 코아의 부피를 감소시킴으로써 제품의 콤팩트화를 이룰 수 있고, 원자재가격의 감소로 제품원가를 저하시킬 수 있다.As described above, the effect of the present invention obtained by replacing the core used in the conventional ferrite with the amorphous core can achieve compactness of the product by reducing the volume of the core used in the state capable of exhibiting the same ability. In addition, lower raw material prices can reduce product costs.
또한 코아 설치시 종래 실리콘으로 도포하여 24시간이상 실리콘이 굳어 접착되는 시간을 절감할 뿐만 아니라 코아를 코아고정용 리브로 간단하게 설치할 수 있어 제품생산성을 향상시킬 수 있다.In addition, the core can be coated with conventional silicone for more than 24 hours to reduce the time that the silicone is hardened and adhered, as well as to simply install the core as a core fixing rib can improve product productivity.
또한 아몰퍼스의 유연성과 경량성 때문에 잘 파손되지 않아 제품의 신뢰성을 향상시킬 수 있는 효과가 있다.In addition, due to the flexibility and light weight of the amorphous does not break well, there is an effect that can improve the reliability of the product.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950032841A KR0162407B1 (en) | 1995-09-29 | 1995-09-29 | Core for preventing electromagnetic interference of induction heating cooking equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950032841A KR0162407B1 (en) | 1995-09-29 | 1995-09-29 | Core for preventing electromagnetic interference of induction heating cooking equipment |
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| Publication Number | Publication Date |
|---|---|
| KR970019751A KR970019751A (en) | 1997-04-30 |
| KR0162407B1 true KR0162407B1 (en) | 1999-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019950032841A KR0162407B1 (en) | 1995-09-29 | 1995-09-29 | Core for preventing electromagnetic interference of induction heating cooking equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160109890A (en) * | 2015-03-13 | 2016-09-21 | 범일산업 주식회사 | Cauldron type induction cooker using electromagnetic induction device |
| KR20160109889A (en) * | 2015-03-13 | 2016-09-21 | 범일산업 주식회사 | Cauldron type induction cooker using electromagnetic induction device |
-
1995
- 1995-09-29 KR KR1019950032841A patent/KR0162407B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160109890A (en) * | 2015-03-13 | 2016-09-21 | 범일산업 주식회사 | Cauldron type induction cooker using electromagnetic induction device |
| KR20160109889A (en) * | 2015-03-13 | 2016-09-21 | 범일산업 주식회사 | Cauldron type induction cooker using electromagnetic induction device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970019751A (en) | 1997-04-30 |
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