JP2010218725A - Electromagnetic induction heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electromagnetic induction heating cooker in which the weight of top plates obtained by division to reduce the size is made light, and improvement in assembling properties and cost reduction are achieved. <P>SOLUTION: The electromagnetic induction heating cooker includes the top plates 2 on which cooking apparatuses are mounted, frames by which the top plates are fixed and supported, and induction heating coils 4a, 4b for induction-heating the cooking apparatuses are provided downward of the top plates. The top plates 2 are formed while being separated, the respective separated top plates are disposed for each heating coil 4 including the induction heating coil, and are fixed and supported by the frames 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electromagnetic induction heating cooker, and more particularly, to a shape of a divided top plate, a support structure, and the like.

  In order to improve the cleaning and appearance of the top surface, an electromagnetic induction heating cooker that is generally used in the past is bonded to the top plate made of crystallized glass and the metal frame on the outer periphery with a silicon adhesive. It was a structure. In addition, there has been proposed a technique in which a top plate and a frame are bonded and bonded using a double-sided tape instead of a silicon adhesive (see, for example, Patent Document 1). In any case, the conventional top plate is provided with one large crystallized glass plate.

Japanese Patent Laying-Open No. 2008-171703 (FIG. 2)

The top surface of a conventional electromagnetic induction heating cooker has a support structure in which a metal frame is fixed to the outer peripheral portion of a square crystallized glass top plate with a silicon adhesive or double-sided tape. For this reason, the crystallized glass top plate has a large shape, so that it is difficult to obtain flatness, and since the size of one side is large and only the outer periphery is bonded and fixed with an adhesive or the like, it is weak in strength. In addition, there is a problem that a pan or the like can be accidentally dropped on the top plate during cooking.
Moreover, there also existed a problem that an adhesion part peeled off. Furthermore, since the shape is large, the cost is high and the weight is also heavy, so that it takes time to repair the cracked top plate, and there is a problem that replacement parts are expensive.

  The present invention has been made in view of the above-described problems, and is an electromagnetic induction heating cooker that reduces the weight by dividing the top plate to reduce the size, thereby improving the assembly and reducing the cost. The purpose is to provide.

An electromagnetic induction heating cooker according to the present invention includes a top plate for placing a cooking utensil, a frame for fixing and supporting the top plate, and an induction heating coil for inductively heating the cooking utensil below the top plate. ,
The top plate is divided individually, and the divided top plates are arranged for each heating coil including the induction heating coil and fixedly supported by the frame.

  As described above, the electromagnetic induction heating cooker of the present invention has a top surface flatness, which is a conventional merit, because the top plate divided individually is arranged for each heating coil and fixed to the frame. There is an effect that the weight of the top plate can be reduced without impairing the cleaning property and the appearance, the assembly and handling are easy, and the cost can be reduced.

It is a schematic perspective view of the electromagnetic induction heating cooking appliance which concerns on Embodiment 1 of this invention. 3 is a cross-sectional view of the top plate support structure according to Embodiment 1. FIG. 6 is a cross-sectional view of a top plate support structure according to Embodiment 2. FIG. 6 is a cross-sectional view of a top plate support structure according to Embodiment 3. FIG. FIG. 10 is a cross-sectional view of a top plate support structure according to a fourth embodiment.

  Hereinafter, the electromagnetic induction heating cooker of this invention is demonstrated in detail with reference to drawings.

Embodiment 1 FIG.
The electromagnetic induction heating cooker 100 according to Embodiment 1 of the present invention has a box-shaped main body 1 and a top surface of the main body 1 as shown in a schematic perspective view in FIG. A top plate 2 made of crystallized glass on which a cooking utensil (not shown) such as a frying pan is placed, and a metal frame 3 that fixes and supports the top plate 2 are provided. Below the top plate 2, induction heating coils 4a and 4b for induction heating the cooking utensil are arranged as two left and right mouths. Further, a radiant heater 4 c is provided on the back side of the central portion below the top plate 2. The radiant heater 4c is an electric heater that heats a material whose cooking utensil is not suitable for induction heating, such as a pot made of aluminum, copper, ceramics, or the like. Hereinafter, unless otherwise specified, the induction heating coils 4a and 4b and the radiant heater 4c are collectively referred to as “heating coil 4”. The number of induction heating coils is not limited to the above, and at least one induction heating coil may be used. In some cases, there is no radiant heater and only an induction heating coil is used.

  Here, the top plate 2 is divided individually, and each divided top plate 2 is disposed in each of the induction heating coils 4a, 4b and the radiant heater 4c and fixed to a metal frame 3 made of stainless steel or the like. It is supported. That is, in the first embodiment, a total of three top plates 2 are arranged for each heating coil 4. Each top plate 2 is surrounded by a metal frame 3. The outer diameter of the heating coil 4 is about 20 cm, and the outer diameter of each top plate 2 is slightly larger than the outer diameter of the coil, and is 26 cm at the maximum.

  An operation panel unit 5 capable of top surface operation is provided on the front side of the upper surface of the frame 3, and the operation panel unit 5 is provided so that the surface is substantially flat with the upper surface of the frame 3. The operation panel unit 5 is composed of a liquid crystal display device, an LED, and the like, and is provided with displays and switches that indicate the setting contents during operation and the contents of the operation state. Adjustment of the heating power (heating amount) of the induction heating coils 4a and 4b and the radiant heater 4c is operated by the operation panel unit 5.

FIG. 2 is a sectional view of the frame 3 showing the support structure for one top plate 2 divided as described above.
The frame 3 has a plurality of recesses 6 (three in this example) for attaching the top plate 2. A hole (coil insertion hole) 7 is provided at the bottom of the recess 6 so that the outer diameter of the heating coil 4 can enter. The top plate 2 is attached by being press-fitted into the recess 6 of the frame 3 via a ring-shaped buffer member 8 made of a heat-resistant resin such as silicone.

According to the first embodiment, as described above, since the top plate 2 is divided into individual parts to reduce the size, the weight can be reduced, and the flatness can be easily and high. Can be accurate. Therefore, handling at the time of assembly can be facilitated and the cost can be reduced.
Furthermore, by fitting the top plate 2 into the recess 6 of the frame 3 in a press-fitted state via the ring-shaped buffer member 8, the top plate 2 is not detached from the frame 3, and Even when an impact is applied, the impact can be absorbed and the top plate 2 can be prevented from cracking.

The top plate upper surface 2a is formed so as to be slightly higher than the frame upper surface 3a, and the buffer member upper surface 8a is positioned between the step dimensions. That is, the buffer member upper surface 8a is provided at a position that is the same as or lower than the top plate upper surface 2a and that is the same as or higher than the frame upper surface 3a.
By adopting such a dimensional relationship of the heights of the upper surfaces 2a, 8a, and 3a, the cushioning member 8 can be configured not to appear on the design surface surface without impairing the flatness of the top surface, and the cleaning property. The merit of can be kept.

Embodiment 2. FIG.
FIG. 3 is a cross-sectional view of the frame 3 showing the support structure for the top plate 2 of the second embodiment. The second embodiment is different from the first embodiment only in that the buffer member 8A is formed in a ring shape with an L-shaped cross section having a vertical portion and a horizontal portion. Since other configurations are the same as those of the first embodiment, the same components are denoted by the same reference numerals.
In the second embodiment, similarly to the first embodiment, the top plate 2 is press-fitted and attached to the recess 6 of the frame 3 via the ring-shaped buffer member 8A. The buffer member 8A is attached to the top plate. 2 is formed in a ring shape with an L-shaped cross section having a vertical portion and a horizontal portion that are in contact with the outer peripheral surface and the lower surface, so that the impact absorption effect when an impact is further applied to the top plate 2 than in the first embodiment. It will be expensive.

Embodiment 3 FIG.
FIG. 4 is a cross-sectional view of the frame 3 showing the support structure for the top plate 2 of the third embodiment. The third embodiment is different from the first and second embodiments in that the frame 3 is provided with a convex portion 9 serving as a spilled receptacle in a ring shape at a position wider than the outer periphery of the cooking utensil 200 such as a pan. Since other configurations are the same as those in the first and second embodiments, the same components are represented by the same reference numerals.
When the top plate is large and integrated as in the prior art, it is impossible to partially provide a convex portion, but in the case of the top plate 2 divided into a plurality as in the third embodiment, the convex portion Can be provided. In this Embodiment 3, when boiled juice etc. are spilled from cooking utensil 200 during cooking, since the annular convex part 9 provided in the frame 3 can prevent the spread of boiled spilled soup, the range of dirt Since it becomes limited, cleaning becomes easy.
In addition, the convex part 9 used as a spillage receptacle may be provided in all the heating coils 4, and may be provided only in the main induction heating coils with a large thermal power.

Embodiment 4 FIG.
FIG. 5 is a cross-sectional view of the frame 3 showing the support structure for the top plate 2 according to the fourth embodiment. In the fourth embodiment, the top plate 2 is formed in a concave shape to improve the installation of the cooking utensil 200. Since other configurations are the same as those of the first to third embodiments, the same components are represented by the same reference numerals.
Although it is impossible when the top plate is large and integrated as in the prior art, in the case of the top plate 2 divided into a plurality as in the fourth embodiment, it can be formed in a concave shape. Thereby, the cooking utensil 200 can be stably placed on the concave top plate 2.

  Note that the top plate 2 formed on the concave surface is not necessarily provided in all the heating coils 4. In addition, the unstable thing is that the shape of the bottom of the cooking utensil 200 is convex, so there is no need to make the top plate 2 convex.

  Next, a case where the top plate 2 is repaired by cracking or the like will be described. Since this case is common to all the first to fourth embodiments, the case of the first embodiment will be described.

  First, the frame 3 is removed from the main body 1, and the top plate 2 is pushed from the lower side of the frame 3 to remove it from the frame 3. Then, after cleaning the inside of the main body 1, the frame 3 is attached to the main body 1 again, and if a new top plate 2 is press-fitted together with a new cushioning member 8 from above, repair is completed.

  In the conventional structure, even if a part of the top plate is damaged, it is necessary to replace the entire top plate. Therefore, a high repair cost is incurred for the user, but according to the present embodiment, the top of the damaged part is It is only necessary to replace the plate, and the repair time is shortened and the repair parts can be made inexpensive, so that the total repair cost is reduced.

  In addition, this invention is applicable to any electromagnetic induction heating cooking appliance of a kitchen built-in type (built-in type) or a kitchen stationary type.

  DESCRIPTION OF SYMBOLS 1 Main body, 2 Top plate, 3 Frame, 4 Heating coil, 4a, 4b Induction heating coil, 4c Radiant heater, 5 Operation panel part, 6 Concave part, 7 Coil insertion hole, 8, 8A Buffer member, 9 Convex part, 100 Electromagnetic Induction heating cooker, 200 cookware.

Claims (6)

A top plate on which cooking utensils are placed;
A frame for fixedly supporting the top plate;
An induction heating coil for induction heating the cooking utensil below the top plate;
The top plate is individually divided, and each divided top plate is arranged for each heating coil including the induction heating coil and fixedly supported by the frame. .   2. The electromagnetic induction heating cooker according to claim 1, wherein the divided top plate is press-fitted and attached to a recess provided in the frame via a ring-shaped buffer member. The upper surface of the divided top plate is formed to be slightly higher than the upper surface of the frame,
3. The electromagnetic induction heating according to claim 1, wherein an upper surface of the buffer member is formed so as to be positioned between step sizes of an upper surface of the divided top plate and an upper surface of the frame. Cooking device.   4. The electromagnetic wave according to claim 2, wherein the buffer member is formed in a ring shape having an L-shaped cross section having a vertical portion and a horizontal portion in contact with an outer peripheral surface and a lower surface of the divided top plate. Induction heating cooker.   The electromagnetic induction heating cooker according to any one of claims 1 to 4, wherein the frame is provided with a convex portion serving as a spillage receiver in a ring shape at a position wider than the outer periphery of the cooking utensil.   The electromagnetic induction heating cooker according to any one of claims 1 to 5, wherein the divided top plate is formed in a concave shape.

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