JP2001095692A - Electromagnetic induction heating type roaster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic induction heating type roaster, which can bake a food material to be juicy while enclosing the juice of the food by efficiently heating the food material in a short period of time, and at the same time, wherein a metal mesh or a grate can be properly adopted as a food material supporting body. SOLUTION: The section 54 of a heating body 5 is formed in such a manner that the tilting angle θ is set in a rage of 20 to 30 deg.. Also, on the inner periphery, a ceramic film 55 is coated for this electromagnetic induction heating type roaster.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic induction heating type roaster for baking foodstuffs efficiently in a short time.

[0002]

2. Description of the Related Art A conventional electromagnetic induction heating type roaster is disclosed in Japanese Patent Application Laid-Open No. Hei 10-12367. In this proposal, the heating element is formed in a substantially cylindrical shape to prevent juice coming out of ingredients during the roasting cooking from dripping on the surface of the heating element and soiling the surface, and to prevent smoke and ignition by the oil-containing juice. ,
Juice that drips from the ingredients passes through its internal space. However, in this proposal, in order to achieve the above object, the heating element must be formed in a nearly vertical cylindrical shape. Therefore, the radiant heat from the lower part of the heating element does not reach the food material and the heat power is insufficient, so that the food material is baked in a steamed state. In particular, when a wire mesh is used as a food support, a large amount of radiant heat passes from the support and does not convect on the support surface, so that the food is easily cooled and unevenness is produced in the food. Also, cooking time is long. In addition to this proposal, an electromagnetic induction heating type roaster using a simulated charcoal as a heating body is known, but has a drawback that the simulated charcoal cannot be uniformly heated and the heat power is weak. Both have practical problems.

[0003]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the present invention can efficiently heat foodstuffs in a short time, contain the juice of the foodstuffs, and bake them juicyly. It is another object of the present invention to provide an electromagnetic induction heating type roaster in which both a wire mesh and a roster can be appropriately adopted.

[0004]

In order to achieve the above object, an electromagnetic induction heating type roaster according to claim 1 of the present invention comprises:
The angle of inclination of the inclined part of the heating element is from 20 degrees to 3 degrees with respect to the horizontal plane.
It was formed in a range of 0 degrees.

[0005] In the electromagnetic induction heating type roaster of claim 2 of the present invention, the inner periphery of the heating body is coated with a ceramic film.

In the electromagnetic induction heating type roaster according to the third aspect of the present invention, the inner periphery of the heating body is coated with a ceramic coating by ceramic spraying.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an electromagnetic induction heating type roaster of the present invention will be described with reference to FIGS. T is a table in which a bottomed square cylindrical outer case 1 is installed in a central opening H thereof. It has a flange 11 at its upper end. The outer case 1 is installed on the table T by locking the flange portion 11 to the opening edge of the table. Outer case 1
A smoke outlet 16 may be provided at the lower part of the device to communicate with exhaust means (not shown).

A cooling fan F is mounted on the outer case 1 by opening a ventilation port 13 at an appropriate position on an outer wall 12 thereof. In this embodiment, the cooling fans F are mounted on the opposing outer walls 12, respectively. An exhaust port 14 is provided on another outer wall 12. In this embodiment, the exhaust port 14 is provided at one place, but a plurality of exhaust ports may be provided as necessary.

Further, a flat rectangular parallelepiped oil pan 2 having an opening 22 of an appropriate size on the upper surface at an appropriate position below the outer case 1.
Is installed. The oil pan 2 can be freely drawn in and out along the guide 2a, and a handle (not shown) is provided on the side of the oil pan 2. The outer wall 12 of the outer case 1 is provided with an entrance 15 for the oil pan 2.

Reference numeral 3 denotes a bottomed cylindrical inner case. A flange 32 is provided on the upper end of the outer wall 31 of the inner case 3. The flange 32 has a plurality of through holes 32a. The outer wall 31 is provided with an air inlet 33 communicating with the air outlet 13 of the outer case 1. The bottom portion 35 forms a step portion 36 and further reduces the diameter downward to provide a reduced diameter portion 37. An air outlet 34 communicating with the exhaust port 14 of the outer case 1 is provided on the outer wall 31 of the reduced diameter portion 37. At the end of the air outlet 34, a flange 34f having a plurality of through holes 34a is formed.

The air inlet 33 and the air outlet 34
The rectifying plates P1 and P2, which have substantially the same shape and the same size as the respective cross-sectional shapes, are attached at an appropriate angle to the horizontal axis. Each of the rectifying plates P1 and P2 may be provided with an angle varying means.

Reference numeral 4 denotes an electromagnetic induction heating body, which comprises a heating body 5, a heat insulator 6, and a work coil 7 arranged along the outer wall of the heat insulator 6 from the inside toward the outside.

The heating element 5 is formed in a funnel shape using a stainless steel sheet. The inclined portion 54 is formed by inclining the inclination angle θ in the range of 20 degrees to 30 degrees. In the center is a tubular part 52
Is provided. The outer edge of the inclined portion 54 is bent upward, and its end is further bent downward to form the upper flange portion 51.
The lower end of the central tubular portion 52 is bent horizontally to form a lower flange 5.
Form 3 The inner periphery of the heater 5 is coated with a ceramic coating 55 by ceramic spraying.

The heat insulator 6 is made of ceramic and formed in the same funnel shape as the heater 5. A flange 61 is provided on the outer edge, and a plurality of through holes 61a are formed. The central portion has a cylindrical portion 62.

The work coil 7 is disposed along the outer wall of the heat insulator 6, and its lower part is covered with the silicone rubber S for insulation.

The inner case 3 includes a bottom portion 35 of a reduced diameter portion 37.
Is placed on the upper surface of the oil pan 2 and the air inlet 3
3. Insert a set screw into the through holes 33a, 34a provided in the flange portions 33f, 34f of the air outlet 34 and the through holes provided on the outer periphery of the air vent 13 and the exhaust vent 14 of the outer case 1, and screw the nut into place. And connect. Further, the central cylindrical portion 62 of the heat insulator 6 is fitted into the central hole 39 of the annular portion 38.

On the step 36 of the inner case 3, the heating element 5
Aluminum heat radiator 8 having the same funnel shape as heat insulator 6
Is installed. A cooling rib 81 is formed below the radiator 8. A ferrite 9 whose entire periphery is insulated with silicon rubber S is adhered to the upper surface of the heat radiator 8. The work coil 7 is set on the ferrite 9. The flange 61 of the heat insulator 6 is placed on the flange 32 of the inner case 3 and connected by a set screw.

The heating element 5 is placed on the heat insulator 6.
A space G1 is formed between the heating element 5 and the heat insulator 6 at an appropriate interval by the upper flange 51 and the lower flange 53 of the heating element 5. The outer edge of the wire mesh M or the rostrum D is placed in contact with the inside of the upper flange portion 51 of the heating element 5, and the roasting dish is performed thereon.

Next, the operation and effects of the electromagnetic induction heating type roaster of the present invention will be described. When a main switch (not shown) is turned on and the work coil 7 is energized, the heating element 5 glows red and reaches approximately 800 ° C. in a few minutes. The air on the upper surface of the heating element 5 is heated by the heating element 5 that has become red, and rises, and the food is baked by radiant heat from the heating element 5 and near-infrared rays, mid-infrared rays, and far-infrared rays. Further, by coating the inner periphery of the heating element 5 with the ceramic coating 55 by means of ceramic spraying, it is possible to increase the radiation amount of each infrared ray and to radiate each infrared ray in a wide range since the ceramic coating 55 has a pear-like uneven surface. be able to.

Since the heating element 5 is formed such that the inclined portion 54 is inclined in the range of 20 to 30 degrees, the radiant heat during heating reaches the foodstuffs substantially uniformly at the outer edge of the heating element 5 and the central cylindrical portion 52, Bake ingredients efficiently in a short time. In particular, when a wire mesh is used for the food support, the amount of radiant heat passing therethrough is greater than when a rooster is used, and convection does not occur on the support surface, so that the temperature is easily cooled. Therefore, if the inclination angle of the inclined portion 54 is large, uneven burning occurs. In addition, the juice generated from the food to some extent travels along the inclined portion 54, travels along the inner wall of the central cylindrical portion 52, passes through the opening 22 of the oil pan 2, and drops into the oil pan 2 filled with water W. In the case of daily maintenance such as cleaning of appliances, the heating element 5 which is particularly dirty is removed, and the oil pan 2 is pulled out from the outer case 1 for cleaning.

When the main switch is turned on, the cooling fan F is simultaneously operated to start blowing air. As shown in FIG. 2 and FIG. 3, the air blown from the cooling fan F is
The air blower A passes through the space G2 between the work coil 7 and the air blower B toward the lower part of the heat radiator 8. At this time, the air volume of each of the air blows A and B is adjusted by the inclination angle of the current plate P1. Then, the air blasts A and B that have passed through each object to be cooled join in the reduced diameter portion 37 of the inner case 3 and are discharged from the exhaust port 14 of the outer case 1 through the air outlet 34. If a flow straightening plate P2 is provided at the air outlet 34, the current straightening plate P1 at the air inlet is provided.
Similarly, the displacement can be adjusted.

The heat radiator 8 is made of aluminum and has a high thermal conductivity. Further, a cooling rib is provided below the heat radiator 8 to increase the heat radiating area, thereby radiating the conduction heat from the work coil 7 to overheat the work coil 7. To prevent

The ferrite 9 blocks magnetic flux leaking from the work coil 7 to prevent heat generation from anything other than the heating element 5.

[0023]

As described in detail above, according to the electromagnetic induction heating type roaster of the present invention, the food can be efficiently heated in a short time, the juice of the food can be sealed and baked juicy, and the food can be supported. Practically excellent effects, such as the ability to appropriately employ wire mesh and Rostor on the body.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part of an electromagnetic induction heating type roaster of the present invention.

FIG. 2 is a vertical sectional view taken along line A-0-A of FIG.

FIG. 3 is a perspective view showing one embodiment of a heating element.

FIG. 4 is a cross-sectional view of a heating element.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer case 2 Oil pan 3 Inner case 4 Electromagnetic induction heating body 5 Heating body 6 Heat insulator 7 Work coil 8 Heat radiator 9 Ferrite F Cooling fan P1 Rectifier plate P2 Rectifier plate R Ventilation path

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] December 10, 1999 (1999.12.
10)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG. 3

FIG. 4

FIG.

FIG. 2

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuji Araki 463 Omori Moradachu, Kuwana-shi, Mie Inside Chubu Corporation (72) Inventor Noriyuki Kobayashi 463 Omori Moradachu, Kuwana-shi, Mie Joytech Co., Ltd. F term (reference) 3K051 AA08 AB04 AC42 AC54 AD30 AD39 BD22 CD16 CD43 CD44 4B040 AA03 AB12 CA06 CB06 CB13 CB23 JA07 JA12 JA17

Claims (3)

[Claims] An outer case (1) installed in an opening (H) at the center of a table (T) has a blower fan (F) attached to its outer wall and an inner case (R) having a blower path (R) inside. 3) An electromagnetic induction heating type roaster comprising an inner case (3) and an electromagnetic induction heating body (4) disposed in the inner case (3), wherein the electromagnetic induction heating body (4) is directed outward from inside. A funnel-shaped heater (5), a heat insulator (6) having the same shape as the heater (5), and a work coil (7) provided along the outer wall of the heat insulator (6) are arranged at appropriate intervals. An electromagnetic induction heating roaster characterized in that the heating element (5) has the inclined portion (54) inclined at an inclination angle of 20 to 30 degrees with respect to a horizontal plane. 2. The electromagnetic induction heating type roaster according to claim 1, wherein the inner periphery of the heating element (5) is coated with a ceramic coating (55). 3. A ceramic coating (55) coated on the inner periphery of said heating element (5) by ceramic spraying.
The described electromagnetic induction heating roaster.