JPS5925289Y2 - Boiling utensil for induction cooker - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a chain-shaped boiling device used in an electromagnetic cooker.

An electromagnetic cooker is a boiling utensil itself made of a magnetic material such as iron or 18 chrome stainless steel that generates heat using magnetic lines of force, and the heating part of the boiling utensil is limited to the bottom.

Therefore, with conventional boiling utensils, low-viscosity fluids such as water can be uniformly heated throughout by convection, but high-viscosity materials such as stew cannot be uniformly heated by convection. Only the bottom part is heated and a simmering layer is formed.

For this reason, conventional products are not suitable for cooking stews, etc.
More precisely, electromagnetic cookers are said to be unsuitable for cooking highly viscous materials, which are best simmered in a way that makes the temperature of the entire boiling device uniform and wraps it in heat.

In order to solve the above-mentioned problems, this invention improves the boiler to have a double pot structure, and uses a heat medium housed between the outer pot and the inner pot to transfer the heat from the bottom of the outer pot to the entire inner pot. The following is an explanation using the drawings.

In FIG. 1, which is a partial vertical cross-sectional view, the boiling tool 1 is made of iron;
The outer pot 2 and the inner pot 3 are equipped with an outer pot 2 made of a magnetic material such as 18 chrome stainless steel and an inner pot 3 made of aluminum or copper.
A cavity 5 is formed between them over substantially the entire inner surface of the outer pot 2 (the entire outer surface of the inner pot 3).

The outer pot 2 and the inner pot 3 are provided with outward flanges 6.7 on their upper edges;
The tip of the flange 7 is bent downward and radially inward and caulked to the flange 6 from above and below, and the cavity 5 is hermetically sealed by this caulked portion.

A heating medium 10 is enclosed throughout the cavity 5 except for a vacuum space 9 formed at the upper end.

A liquid having a boiling point higher than the operating temperature of the boiling tool 1 is used as the heat medium 10, and for example, oil such as silicone oil or vegetable oil is used.

When the electromagnetic cooker 11 is energized to generate magnetic lines of force near the top plate 12 of the electromagnetic cooker 11, the bottom 1 of the outer pot 2
An eddy current is generated in the bottom part 13, and the bottom part 13 itself generates heat, causing the bottom part 13 to
The nearby heating medium 10 is heated.

Then, since there is a temperature difference between the bottom and the top of the heating medium 10, convection occurs and the sides 15 and bottom 16 of the inner pot 3 are heated approximately evenly.

Therefore, the contents 17 are uniformly heated from the entire inner pot 3.

In this operation, the heat medium 10 expands when heated, but since the heat medium 10 enters the vacuum space 9 by the amount of expansion, high pressure is not applied to the outer pot 2 or the inner pot 3 from the heat medium 10.

As explained above, according to the present invention, the heat medium 10 sealed between the outer pot 2 and the inner pot 3 transmits the heat from the bottom portion 13 of the outer pot to substantially the entire inner pot 3. Heat can be uniformly transferred from the entire body to the contents 17.

Therefore, it is possible to provide a boiling tool 1 for an electromagnetic cooker that is suitable for cooking stew and the like, that is, for cooking highly viscous materials that require uniform heating.

In the illustrated embodiment, aluminum or copper is used as the material for the inner pot 3, so the inner pot 3 has high thermal conductivity and can efficiently transfer heat from the heat medium 10 to the contents 17.

When embodying the present invention, as shown in FIG. Liquids such as alcohol and Freon can also be sealed.

According to this structure, the liquid heat medium 10' heated by the outer pot bottom 13 evaporates and reaches the cavity 5 between the outer pot side portion 19 and the inner pot side portion 15 and heats the side portion 15, so that the inner pot 3 The whole can be heated evenly.

In addition, when the steam of the heat medium 10' finishes heating the inner pot side part 15, it condenses and flows down.

The inner and outer surfaces of the outer pot side portion 19 can also be covered with a heat insulating layer.

The outer pot side part 19 can also be formed of a material other than magnetic material, and in that case, the outer pot side part 19 and the inner pot 3 are integrally molded, and the lower edge of the outer pot side part 19 and the bottom of the outer pot 13 can also be fixed by caulking or the like.

[Brief explanation of the drawing]

1 and 2 are vertical cross-sectional partial views of different embodiments, respectively. 1...Boiling utensil, 2...Outer pot, 3...
...Inner pot, 5...Cavity, 10.10'...
... Heat medium, 13 ... Bottom of outer pot.

Claims (1)

[Scope of utility model registration request] An electromagnetic device characterized in that a sealed cavity is formed between an inner pot and an outer pot having a bottom made of a magnetic material, and a heat medium is sealed in the cavity to transmit heat from the bottom of the outer pot to substantially the entire inner pot. Boiling utensils for cookers.