JPH0856848A - Heating cooker - Google Patents

Abstract

PURPOSE: To suppress sufficiently elevation of temp. to a holding frame by an inexpensive structure. CONSTITUTION: A heat insulating cover 11 is provided on the upper part of an electrically connecting part 6 by positioning it between a heat insulating plate 7 and a holding frame 4. An air passage 15 from a heat generating body 3 to the outside is formed by providing the heat insulating cover 11 and the heat insulating plate 7 under separated condition. Heat transfer from the heat generating body 3 to the upper part of the holding frame 4 is thereby insulated, by means of the heat insulating cover 11. In addition, elevation of temp. in the bottom part of the holding frame 4 is also suppressed by means of the air passage 15. The heat insulating cover 11 and the heat insulating plate are under non-contact condition and it is not necessary to form the heat insulating cover 11 with an expensive thermosetting resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cooker for heating a removable cooking plate with a heating element, and more particularly to a heating cooker for suppressing the temperature rise of a holding frame for holding the cooking plate. Involved in

[0002]

2. Description of the Related Art The structure of a conventional cooking device of this type is shown in FIG. In FIG. 1, reference numeral 1 denotes a cooking plate detachably provided on a cooker body 2 having an overall dish shape, and the cooker body 2 includes a heating element including an electric heater such as a sheath heater for heating the cooking plate 1. 3 is built in. Reference numeral 4 denotes a plastic holding frame that holds the cooking plate 1, and the holding frame 4 forms an outer shell of the cooker main body 2.

The opening 4 of the holding frame 4 is provided on one side of the heating element 3.
Facing A, an electric connection portion 6 having a plurality of insertion terminals 5 arranged in parallel is provided on the tip side in a protruding manner. Also,
Below the cooking plate 1, a heat shield plate 7 that surrounds the outer periphery of the heating element 3 and blocks heat from the cooking plate 1 and the heating element 3 is provided. On one side of this heat shield plate 7,
In order to prevent an accidental contact with the electric connection portion 6 while forming an opening 7A through which the electric connection portion 6 is inserted,
The electrical connection portion 6 is covered by a jack-shaped protector 8 provided so as to face the opening 4A of the holding frame 4.
Then, by mounting a power source section (not shown) having a power supply terminal corresponding to the plug-in terminal 5 on the protector 8, a power source voltage is supplied from the electrical connection section 6 to the heating element 3,
The cooking plate 1 on the heating element 3 is heated.

[0004]

In the above prior art, the heat of the heating element 3 radiated from the opening 7A of the heat shield plate 7 is prevented from directly reaching the plastic holding frame 4 having poor heat resistance. A protector 8 is provided so as to contact one end surface of the heat shield plate 7. In this case, the heat from the heat shield plate 7 is conducted to the protector 8 via the contact portion between the protector 8 and the heat shield plate 7, so that the protector 8 is made of a heat resistant member such as a thermosetting resin. However, such a thermosetting resin is originally expensive, and there is a problem in that the cost is increased in manufacturing. In this case, it is conceivable to form the holding frame 4 in such a shape that the power source unit can be mounted without using the protector 8, but in the state where the protector 8 is not provided, the heating element 3 from the opening 7A of the heat shield plate 7 is formed. The holding frame 4 directly receives the heat of, and there is a possibility that the holding frame 4 may not be kept high in heat.

In view of the above problems, it is an object of the present invention to provide a heating cooker having an inexpensive structure and capable of sufficiently suppressing a temperature rise with respect to the holding frame.

[0006]

SUMMARY OF THE INVENTION The present invention comprises a removable cooking plate, and a heating element for heating the cooking plate.
A heating cooker comprising: a holding frame for holding the cooking plate; a heat shield plate provided on the outer periphery of the heating element; and an electric connection portion protruding from one side of the heating element. A heat shield cover is provided above the electric connection portion between the plate and the holding frame so as to be separated from the heat shield plate.

[0007]

With the above structure, by providing the heat shield cover on the upper portion of the electrical connection portion, heat from the heating element to the holding frame located above the electrical connection portion is shut off. Further, by providing the heat shield cover in a state of being separated from the heat shield plate, a flow passage of air from the heating element to the outside of the heating cooker is formed, and the temperature of the bottom portion of the holding frame below the heat shield cover is formed. The rise is also suppressed at the same time. In this case, the heat shield cover and the heat shield plate are not in contact with each other, and heat from the heat shield plate is not directly transmitted to the heat shield cover, so it is necessary to form the heat shield cover with an expensive thermosetting resin. Absent.

[0008]

An embodiment of the present invention will be described below with reference to FIG. The same parts as those of the conventional example are designated by the same reference numerals, and detailed description of the common parts will be omitted.

In this embodiment, a heat shield cover 11 formed by bending a metal plate or the like is provided between the heat shield plate 7 and the holding frame 4 instead of the protector 8 made of a thermosetting resin of the conventional example. It is noted that it is located and is provided above the electrical connection 6. The heat shield cover 11 has a base end portion 11A mounted and fixed to the inside of the holding frame 4 via a screw 12, and also has a base end portion 11A.
The front end portion 11B located on the inner side of the holding frame 4 and the outer end surface of the heat shield plate 7 are provided in a non-contact state, that is, in a separated state. Then, a first separation portion 13 provided between the heat shield cover 11 and the heat shield plate 7 and a second separation portion provided between the outer end portion 1A of the cooking plate 1 and the holding frame 4. The portion 14 forms an air flow passage 15 from the heating element 3 to the outside of the cooker body 2 as shown by the arrow in FIG.

When a power source (not shown) is attached from the opening 4A of the holding frame 4, a power source voltage is supplied from the electrical connecting portion 6 to the heating element 3, and the cooking plate 1 is heated by the heat from the heating element 3. . At this time, the heat of the heating element 3 is radiated to the electric connecting portion 6 side through the opening 7A of the heat insulating plate 7, but the heat insulating cover 11 provided on the upper portion of the electric connecting portion 6 causes the heating element 3 to be heated. To the holding frame 4 located above the electrical connection portion 6 is blocked. Moreover, the opening 7 of the heat shield plate 7
The heat around the A passes through the air flow passage 15 formed by the first separating portion 13 and the second separating portion 14, and the cooker main body 2
Is released to the outside of. Therefore, the opening 7 of the heat shield plate 7
The temperature increase around A is suppressed to a minimum by this air flow, and this also has the effect of suppressing the temperature increase at the bottom of the holding frame 4 located below the heat shield cover 11.

On the other hand, when the cooking plate 1 is removed from the cooker body 2, the upper portions of the holding frame 4 and the heat shield plate 7 are exposed. However, in this embodiment, since the heat shield cover 11 is provided between the holding frame 4 and the heat shield plate 7 so as to cover the upper portion of the electrical connection portion 6, the state in which the power supply unit is mounted in the opening 4A is shown. Thus, even if a metal object such as a spoon or a fork falls into the upper portion of the electrical connection portion 6 by mistake, an accident such as a short circuit or an electric shock can be prevented.

As described above, in the heating cooker according to the present embodiment, the heat shield cover 11 is provided on the upper portion of the electric connection portion 6 so that the heating element 3 is moved to the holding frame 4 located above the electric connection portion 6. Heat is cut off. In addition, the heat shield cover 11 is attached to the heat shield plate 7.
The heating element 3 is installed in a state of being separated from
Since the air flow passage 15 from the outside to the outside of the cooker main body 2 is formed, the heat around the opening 7A of the heat shield plate 7 is released to the outside through the air flow passage 15 and the heat shield cover 11 A rise in temperature of the bottom portion of the holding frame 4 located below is also suppressed. In this case, since the heat shield cover 11 and the heat shield plate 7 are not in contact with each other, and the heat from the heat shield plate 7 is not directly transmitted to the heat shield cover 11, an expensive heat shield like the conventional protector 8 is used. It is not necessary to form the heat shield cover 11 with a curable resin. That is, the removable cooking plate 1 and this cooking plate 1
The heating element 3 for heating the heating element 3 and the holding frame 4 for holding the cooking plate 1 are provided, the heat shield plate 7 is provided on the outer periphery of the heating element 3, and the electric connecting portion 6 is projected to one side of the heating element 3. In the heating cooker provided, a heat shield cover 11 is provided above the electric connection part 6 between the heat shield plate 7 and the holding frame 4 so as to be separated from the heat shield plate 7.
By providing, it becomes possible to sufficiently suppress the temperature rise with respect to the holding frame 4 with an inexpensive structure. Also,
Since the heat shield cover 11 covers the upper portion of the electrical connection portion 6, it also has an effect of preventing an accident such as a short circuit or an electric shock.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.

[0014]

The present invention has a removable cooking plate,
A heating element for heating the cooking plate and a holding frame for holding the cooking plate are provided, and a heat shield plate is provided on the outer periphery of the heating element, and an electric connection portion is provided on one side of the heating element so as to project. In the heating cooker consisting of, since the heat shield cover is provided separately from the heat shield plate on the upper part of the electric connection portion between the heat shield plate and the holding frame, an inexpensive structure, It is possible to provide a heating cooker capable of sufficiently suppressing an increase in temperature with respect to the holding frame.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of a heating cooker showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part of a heating cooker showing a conventional example.

[Explanation of symbols]

 1 Cooking plate 3 Heating element 4 Holding frame 6 Electric connection 7 Heat shield 11 Heat shield

Front page continued (72) Inventor Yoshimitsu Kato 2570, Gosuda, Kamo City, Niigata Prefecture 1 Toshiba Home Techno Co., Ltd.

Claims (1)

[Claims] 1. A removable cooking plate, a heating element for heating the cooking plate, and a holding frame for holding the cooking plate. A heat shield plate is provided on the outer periphery of the heating element, and the heat generation is performed. In a heating cooker provided with an electric connection portion projectingly provided on one side of a body, a heat insulation cover is provided above the electric connection portion between the heat insulation plate and the holding frame to be separated from the heat insulation plate. A cooking device characterized by being provided.