JPS6139219Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electric cooker, and more particularly to a so-called smooth-top cooker in which an electric heater is disposed on the lower surface of heat-resistant glass.

In this kind of cooker, the electric heater placed on the bottom surface of the heat-resistant glass is housed in a metal case, which is advantageous because it allows the heater to be placed well on the bottom surface of the heat-resistant glass, protects the heater, and reflects the heat to the top surface. be.

However, electric cookers require insulation measures when installing the electric heater, and when using a sheathed heater as the electric heater, the insulation resistance may decrease due to the humidity in the air at the initial stage of energization. It is also desirable to insulate the metal case when installing it.

Therefore, the present invention proposes an electric cooker that satisfies the above requirements with extremely simple means, and will be described in detail below with reference to the drawings. Reference numeral 1 indicates an electric cooking device according to the present invention, in which a heat-resistant glass 3 is provided on the upper surface of a main body case 2. Reference numeral 4 denotes an electric heater, such as a sheathed heater, which is housed in a metal case 5 and arranged on the lower surface of the heat-resistant glass 3.

Reference numeral 6 denotes an electric heater support part provided inside the metal case 5, which serves to arrange the electric heater 4 on the lower surface of the heat-resistant glass 3. Reference numeral 7 denotes a packing member provided at the contact portion of the metal case 5 with the glass 3.

Reference numeral 9 is an insulating material such as ceramic, and its protrusion 10 projects into the locking hole 8 of the metal case 5.

A spring member 12 presses the metal case 5 onto the lower surface of the heat-resistant glass 3 via the insulator 9. An insulator 9 is also provided in the locking hole 13 of this spring member 12.
A protrusion 11 is included therein, which helps in holding the insulator 9 when it is interposed between the metal case 5 and the spring member 12. The other side 14 of the spring member 12 is held by the main body case 2.

15 is a control member such as a changeover switch, and 16 is an operating knob thereof.

The electric cooker of the present invention is constructed as described above, and the electric heater 4 housed in the metal case 5 is disposed on the lower surface of the heat-resistant glass 3, and cooking on the heat-resistant glass 3 is possible by igniting the electric heater 4. Since the metal case 5 is always pressed against the lower surface of the heat-resistant glass 3 by the spring member 12 via the insulator 9, the metal case 5 is always pressed against the thermal deformation caused by the heating of the electric heater 4. Even if thermal damage occurs, the heat-resistant glass 3 can maintain its fixed position on the lower surface while holding the insulator 9, and even if the insulation of the electric heater 4 deteriorates, the metal case 5 can remain in the upper position. Since the lower part is electrically isolated by the glass 3 and the insulator 9, a safe cooking device can be provided with an extremely simple structure.

[Brief explanation of the drawing]

Fig. 1 is a cutting explanatory diagram of the proposed cooking device, and Fig. 2 is an enlarged explanatory diagram of the main parts. 3...Heat-resistant glass, 4...Electric heater, 5...
...Metal case, 9...Insulator, 12...Spring member.

Claims (1)

[Scope of utility model registration request] An electric cooker comprising an electric heater housed in a metal case on the lower surface of a heat-resistant glass, characterized in that the metal case is pressed against the lower surface of the heat-resistant glass by a spring member via an insulator. electric cooker.