KR200389255Y1 - Heating sheet of magnetic induction heating type cooking vessel - Google Patents
Heating sheet of magnetic induction heating type cooking vessel Download PDFInfo
- Publication number
- KR200389255Y1 KR200389255Y1 KR20-2005-0010203U KR20050010203U KR200389255Y1 KR 200389255 Y1 KR200389255 Y1 KR 200389255Y1 KR 20050010203 U KR20050010203 U KR 20050010203U KR 200389255 Y1 KR200389255 Y1 KR 200389255Y1
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- South Korea
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- cooking vessel
- heating plate
- electromagnetic induction
- heating
- induction heating
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
- B21D51/22—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like pots, e.g. for cooking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
Abstract
본 고안은 전자유도가열식 조리용기의 발열판에 관한 것으로서, 열팽창에 따른 뒤틀림을 방지하여 박리현상이 발생하지 않도록 하고, 조리용기와 발열판의 접합력을 향상시키는 것을 목적으로 한다.The present invention relates to a heating plate of an electromagnetic induction heating type cooking vessel, to prevent distortion caused by thermal expansion, and to prevent peeling, and to improve the bonding force between the cooking vessel and the heating plate.
본 고안에 따른 전자유도가열식 조리용기의 발열판은, 방사상으로 균등분할되는 위치에서 각각 대칭으로 배치되는 장공부를 적어도 3개 이상 형성하고, 조리용기의 바닥면에 접합 단면을 넓히기 위해 톱니모양의 미세한 돌기가 형성된 돌출부를 형성하는 것을 특징으로 한다.The heating plate of the electromagnetic induction heating type cooking vessel according to the present invention forms at least three long holes arranged symmetrically at radially equally divided positions, and has a sawtooth-shaped fine shape to widen the bonding cross section on the bottom surface of the cooking vessel. It is characterized by forming a protrusion formed with a projection.
본 고안에 따른 전자유도가열식 조리용기의 발열판에 의하면, 중앙부와 가장자리부의 불균일한 발열에도 균일한 열팽창을 하게 되므로, 발열판의 뒤틀림으로 인한 박리현상이 발생하지 않고, 조리용기와의 접합 면적이 넓어져 접합력이 향상되므로 장기간 사용에도 발열판이 떨어지지 않는 효과가 있다.According to the heating plate of the electromagnetic induction heating type cooking vessel according to the present invention, since the thermal expansion is uniform even in the uneven heating of the center portion and the edge portion, the peeling phenomenon due to the distortion of the heating plate does not occur, and the bonding area with the cooking vessel is widened. Since the bonding force is improved, there is an effect that the heating plate does not fall even after long-term use.
Description
본 고안은 전자유도가열식 조리용기의 발열판에 관한 것으로서, 더욱 상세하게는, 열팽창을 고려하여 알루미늄으로 만든 조리용기와 발열판과의 접합강도가 우수하고, 조리기구의 저면 외부를 미려하게 하며, 또한 가공이 용이한 전자유도가열식 조리용기의 발열판에 관한 것이다.The present invention relates to a heating plate of an electromagnetic induction heating type cooking vessel. More specifically, the bonding strength between the cooking vessel made of aluminum and the heating plate in consideration of thermal expansion is excellent, and the outside of the bottom of the cooking utensil is beautiful and processed. It relates to a heating plate of this easy electromagnetic induction heating type cooking vessel.
알루미늄 및 알루미늄 합금은 열전도성이 우수하고, 성형성이 양호한 금속이기 때문에 가열용 조리용기의 재료로 많이 사용되고 있다.Aluminum and aluminum alloys are widely used as materials for cooking vessels for heating because they are excellent in thermal conductivity and have good moldability.
그러나 전자유도가열식 조리용기에서는 알루미늄 및 알루미늄합금이 자성을 띄지 않기 때문에 자기 발열이 일어나지 않아 조리기구 내의 조리재료를 가열할 수가 없다. 따라서 전자유도가열식 조리용기에 사용되는 조리용기는, 열전도성이 좋은 알루미늄 및 알루미늄 합금으로 만든 조리용기의 바닥면에 자성을 지니는 금속을 부착하는 것이 일반적이다.However, in the electromagnetic induction cooking vessel, since the aluminum and the aluminum alloy are not magnetic, self-heating does not occur, and thus cooking materials in the cooking utensil cannot be heated. Therefore, a cooking vessel used for an electromagnetic induction cooking vessel generally attaches a magnetic metal to the bottom surface of the cooking vessel made of aluminum and aluminum alloy having good thermal conductivity.
상기와 같이, 전자유도가열식 조리용기의 바닥면에 자성을 지니는 금속을 부착하는 방법 중에서, 성형된 알루미늄 조리용기에 브래이징(brazing)으로 발열판을 접합하는 방법은, 한국 공개특허 특2003-28529호에 개시되어 있다. 상기 방법은, 도 1에 도시한 바와 같이, 조리용기의 밑바닥에 여러 개의 통공(通孔, 110)이 뚫린 발열판(100)이 부착되고, 상기 조리용기(200)는 비자성체이고, 상기 발열판(100)은 자성체로 구성되며, 상기 통공(110)의 주위에는 끝면이 평탄하고 매끈한 원형의 돌출부(120)를 형성하고, 돌출부(120)의 내측 반지름이 발열판(100)의 두께의 0.8~1.5배이며, 자성을 띤 발열판(100)의 전체 표면적에 대한 통공(110)의 표면적, 즉 돌출부(120)가 형성된 각 통공(110)의 전체 합친 면적은 5~40% 정도로 되어 있다.As described above, in the method of attaching a magnetic metal to the bottom surface of the electromagnetic induction cooking vessel, a method of bonding the heating plate by brazing to the molded aluminum cooking vessel, Korean Patent Laid-Open No. 2003-28529 Is disclosed. In the method, as shown in FIG. 1, a heating plate 100 having a plurality of through holes 110 is attached to the bottom of the cooking vessel, and the cooking vessel 200 is a non-magnetic material. 100 is formed of a magnetic material, the end surface of the periphery of the hole 110 is formed in a flat and smooth circular protrusion 120, the inner radius of the protrusion 120 is 0.8 ~ 1.5 times the thickness of the heating plate 100 The surface area of the through holes 110, that is, the total sum of the through holes 110 in which the protrusions 120 are formed, is about 5 to 40% of the total surface area of the magnetic heating plate 100.
그러나, 상기한 전자유도가열식 조리용기에 브래이징으로 발열판(100)을 접합하는 방법은 다음과 같은 문제가 있다.However, the method of bonding the heating plate 100 to the electromagnetic induction cooking vessel by brazing has the following problems.
전자유도가열식 조리용기를 사용하여 음식물을 조리할 때, 조리용기(200) 내의 음식물은 대개 중앙부에 집중되어 조리되므로 중앙부의 발열량이 상대적으로 많고, 가장자리는 발열량이 적어지게 된다. 따라서, 발열판(100)의 중앙부와 가장자리의 열팽창이 다르게 되어, 상기 발열판(100)에 뒤틀림이 발생하고, 이로 인해 발열판(100)의 박리현상이 일어나게 된다. When the food is cooked using the electromagnetic induction cooking vessel, the food in the cooking vessel 200 is concentrated and cooked in the central portion, so that the amount of heat generated in the center is relatively high and the amount of heat generated in the edge is reduced. Therefore, the thermal expansion of the center portion and the edge of the heat generating plate 100 is different, the distortion occurs in the heat generating plate 100, thereby causing the peeling phenomenon of the heat generating plate 100 occurs.
또한, 조리용기(200)와의 접합력을 높이기 위해 상기 조리용기(200)쪽으로 돌출부(120)가 형성되어 있으나, 장기간 사용시에는 그 접합력이 떨어져 열팽창으로 인한 박리현상을 견디지 못하게 되는 문제점이 있다.In addition, although the protrusion 120 is formed toward the cooking vessel 200 in order to increase the bonding force with the cooking vessel 200, there is a problem in that the bonding force is insufficient to withstand the peeling phenomenon due to thermal expansion when used for a long time.
본 고안은 상기한 종래 문제점을 고려하여 이루어진 것으로서, 전자유도가열식 조리용기의 바닥면에 형성되는 발열판의 접합력을 높여, 장기간 사용시에도 박리되지 않게 하고, 발열판 전체에 균일한 열팽창으로 고른 발열이 이루어 지도록 하여 조리용기의 성능을 향상시키는 것을 목적으로 한다.The present invention is made in consideration of the above-described conventional problems, to increase the bonding strength of the heating plate formed on the bottom surface of the electromagnetic induction heating type cooking vessel, so as not to peel off even long-term use, so that evenly generated heat by uniform thermal expansion throughout the heating plate The purpose is to improve the performance of the cooking vessel.
상기 목적을 달성하기 위하여, 본 고안은, 전자유도가열식 조리용기의 바닥면에 일체로 성형되는 발열판으로, 원형의 얇은 판재 모양으로 이루어지고, 그 내부에 다수개의 통공이 균일하게 이격배치되며, 상기 각 통공의 내주연상에 소정두께를 갖고 수직하게 상향돌출된 돌출부가 형성되어, 상기 돌출부가 형성된 면이 조리용기의 바닥과 접합되는 전자유도가열식 조리용기의 발열판에 있어서,In order to achieve the above object, the present invention is a heating plate integrally molded on the bottom surface of the electromagnetic induction heating type cooking vessel, made of a circular thin plate shape, a plurality of through-holes are uniformly spaced therein, In the heating plate of the electromagnetic induction heating type cooking vessel having a predetermined thickness on the inner circumferential edge of each through hole is formed, the projection protruding vertically, the surface formed with the protrusion is bonded to the bottom of the cooking vessel,
상기 발열판은, 방사상으로 균등분할되는 위치에서 대칭하게 각각 배치되는 다수개의 장공으로 이루어진 장공부가 적어도 3개소 이상 형성되는 것을 특징으로 한다.The heating plate is characterized in that at least three or more long holes formed of a plurality of holes are arranged symmetrically at positions radially equally divided.
또한, 상기 각 돌출부는, 조리용기의 바닥면과의 접합 면적을 넓히기 위해 톱니모양의 미세한 돌기가 형성되는 것을 특징으로 한다.In addition, each of the protrusions, characterized in that the sawtooth-like fine projections are formed to increase the bonding area with the bottom surface of the cooking vessel.
이하, 본 고안에 의한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 고안에 따른 전자유도가열식 조리용기의 발열판에 있어서, 알루미늄 또는 알루미늄 합금으로 형성된 조리용기와, 상기 조리용기 바닥면에 브래이징으로 접합하는 자성을 가진 금속 박판을 구비하는 것은 종래기술과 동일하므로, 이하에서는 상기한 구성에 대한 상세한 설명은 생략하기로 한다.In the heating plate of the electromagnetic induction heating cooking container according to the present invention, it is the same as in the prior art to provide a cooking container formed of aluminum or aluminum alloy, and a metal thin plate having a magnetic bonding to the bottom surface of the cooking container, Hereinafter, a detailed description of the above configuration will be omitted.
본 고안에 따른 전자유도가열식 조리용기의 발열판은, 도 4에 도시한 바와 같이, 원형으로 형성된 자성의 금속 박판(1)에 소정의 직경을 가진 통공(10)이 형성되고, 가장자리에 방사상으로 균등분할되는 위치에서 대칭하게 각각 배치되는 다수개의 장공(30)으로 구성된 장공부가 형성된다. 상기 장공부는 발열판의 열팽창을 균일하게 하기 위한 것이므로, 그 위치는 방사상으로 균등분할 되는 위치, 예를 들어, 장공부를 3개소 형성할 경우에는 120°간격을 배치되고, 장공부를 4개소 형성할 경우에는 90°간격으로 배치된다. 본 고안에서는 1개소의 장공부에서 3개의 장공을 형성하여 상기 장공부가 4개소에 배치되는 것이 개시되어 있다.In the heating plate of the electromagnetic induction heating type cooking vessel according to the present invention, as shown in FIG. 4, a through hole 10 having a predetermined diameter is formed in the magnetic metal thin plate 1 formed in a circular shape, and radially equally formed at an edge thereof. A long hole consisting of a plurality of long holes 30 are arranged symmetrically at the divided position is formed. Since the long hole is for uniform thermal expansion of the heating plate, the position is radially equally divided, for example, when three long holes are formed, a 120 ° interval is arranged, and four long holes are formed. If so, it is arranged at 90 ° intervals. In the present invention, it is disclosed that three long holes are formed at one long hole and the long holes are arranged at four places.
또한, 상기 통공(10) 및 장공(30)의 총면적은 전체 면적에 대해 5~40%의 범위 안에서 조정될 수 있다.In addition, the total area of the through hole 10 and the long hole 30 may be adjusted within the range of 5 to 40% of the total area.
또한, 도 5에 도시한 바와 같이, 상기 통공(10) 및 장공(30)의 상면에 형성된 돌출부의 끝단에는, 조리용기의 바닥면과의 접합 면적을 넓히기 위해 톱니모양의 미세한 돌기가 형성된다. 상기와 같이 톱니모양을 형성함으로써 알루미늄 또는 알루미늄 합금으로 성형된 조리용기의 바닥면과의 접합 면적이 넓어지므로, 통상의 브래이징으로 접합하여도 더욱 높은 접합력을 가질 수 있게 된다. 상기 톱니모양의 돌출부는, 미세한 돌기가 형성된 면을 가진 압착기구로 눌러서 형성한다. In addition, as shown in Figure 5, at the end of the protrusion formed on the upper surface of the through-hole 10 and the long hole 30, jagged fine projections are formed to increase the bonding area with the bottom surface of the cooking vessel. By forming the sawtooth as described above, since the bonding area with the bottom surface of the cooking vessel formed of aluminum or aluminum alloy is widened, it is possible to have a higher bonding strength even when bonding by conventional brazing. The serrated protrusion is formed by pressing with a pressing mechanism having a surface on which fine projections are formed.
이상에서는 본 고안의 바람직한 실시예를 설명하였으나, 본 고안의 범위는 이와 같은 특정 실시예에만 한정되지 않으며, 해당분야에서 통상의 지식을 가진자라면 본 고안의 실용신안등록 청구범위내에 기재된 범주내에서 적절하게 변경이 가능할 것이다.In the above description of the preferred embodiment of the present invention, the scope of the present invention is not limited to only this specific embodiment, and those skilled in the art within the scope of the utility model registration claims of the present invention Changes may be made as appropriate.
상기한 바와 같이 구성된 본 고안에 따른 전자유도가열식 조리용기의 발열판에 의하면, 중앙부와 가장자리부의 불균일한 열팽창으로 인한 뒤틀림이 발생하지 않고, 상기 뒤틀림으로 인한 발열판의 박리현상도 일어나지 않게 되며, 돌출부의 끝단을 톱니모양으로 형성함으로써 발열판과 조리용기의 접합력을 높여서 장기간 사용해도 발열판이 떨어지지 않는 효과가 있다.According to the heating plate of the electromagnetic induction heating type cooking vessel according to the present invention configured as described above, no distortion occurs due to uneven thermal expansion of the central portion and the edge portion, the peeling phenomenon of the heating plate due to the distortion does not occur, and the end of the protrusion By forming a sawtooth-shaped to increase the bonding strength of the heating plate and the cooking vessel there is an effect that the heating plate does not fall even if used for a long time.
도 1은, 일반적인 전자유도발열식 조리용기 및 발열판을 도시한 사시도.1 is a perspective view showing a general electromagnetic induction heating type cooking vessel and a heating plate.
도 2는, 일반적인 발열판의 접합면의 돌출부를 도시한 부분 확대도.Fig. 2 is a partially enlarged view showing the protrusion of the bonding surface of a general heating plate.
도 3은, 발열판을 접합한 일반적인 전자유도발열식 조리용기의 단면도.3 is a cross-sectional view of a general electromagnetic induction heating cooking vessel bonded to a heating plate.
도 4는, 본 고안에 따른 발열판의 평면도.4 is a plan view of a heating plate according to the present invention.
도 5는, 본 고안에 따른 발열판의 돌출부를 도시한 것으로, (a)는 통공의 확대도, (b)는 장공의 확대도.5 is a projection of the heating plate according to the present invention, (a) is an enlarged view of the through hole, (b) is an enlarged view of the long hole.
*** 도면의 주요부분에 대한 부호의 설명 ****** Explanation of symbols for main parts of drawing ***
1 : 발열판 10 : 통공(通孔)1: heating plate 10: through hole
20 : 돌출부 30 : 장공(長孔)20: protrusion 30: long hole
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101049495B1 (en) * | 2008-07-15 | 2011-07-15 | 서기원 | Bottom structure of induction heating vessel and its manufacturing method |
-
2005
- 2005-04-13 KR KR20-2005-0010203U patent/KR200389255Y1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101049495B1 (en) * | 2008-07-15 | 2011-07-15 | 서기원 | Bottom structure of induction heating vessel and its manufacturing method |
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