JPH02227986A - Cooking apparatus - Google Patents

Abstract

PURPOSE:To protect a control base board and floor surface from the heat emitted, by covering the whole undersurfaces of a pan to be heated and a heating coil with a heat shutoff plate, and by locating it above the control base board. CONSTITUTION:The whole undersurfaces of a pan to be heated 11 and a heating coil 12 are covered with a heat shutoff plate 22, which is located above a control base board 15. Accordingly the pan 11 is heated directly by the heating coil 12, and a major part of generated heat serves for heating the pan 11. The heat emitted from the pan 11 and coil 12 is reflected by the heat shutoff plate 22 formed from an Al plate as provided below, so that temp. rise in the body of a cooking apparatus concerned is suppressed low. This provides protection of the floor surface and control base board 15 from high temp.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a hot plate type cooking device for general household use.

2. Description of the Related Art Conventionally, this type of cooking device has been disclosed, for example, in Japanese Utility Model Application No. 62-33193.
As shown in the publication, it had the structure shown in Figure 2. That is, a heating coil 2 is fixed below the top plate 1 on which the pot 9 to be heated is placed, a control board 3 is located below this heating coil 2, and a heat shield plate 4 is fixed below the control board 3. This prevents the temperature of the floor from rising and leakage of magnetic flux from the heating coil 2. In addition, the heated pot 9
Temperature detection was performed via the top plate 1 using a heat sensitive element 6. Furthermore, in order to suppress the temperature rise inside the main body, by rotating the cooling fan 6, outside air is taken in from one intake lower and heated air is taken out from the other exhaust port 8.

Problem to be Solved by the Invention However, with such a structure, the heat generated from the heated pan 9 heated by the heating coil 2 is transferred to the top plate 1.
After that, the temperature of the top plate 1 itself increases, so the temperature of the heat-sensitive element 6 provided on the back surface of the top plate 1 increases.
However, the temperature of the heated pot 9 cannot be accurately detected and controlled, and since the heat generated in the heated pot 9 is absorbed by the top plate 1, the initial rise time is long, making it impossible to start cooking immediately. It had

In addition, a cooling fan 6 is provided to protect the control board 3, which is vulnerable to high heat, from the heat of the top plate 1 and heating coil 2.
Because of the need to rotate the cooling fan 6 powerfully, a large cooling fan 6 is required, resulting in a large and heavy main body, and the rotating sound of the cooling fan 6 becomes audible.

Therefore, an object of the present invention is to efficiently heat a heated pot by a heating coil and to protect a control board and a floor surface from the heat generated from the heated pot and heating coil.

Means for Solving the Problems and In order to achieve the above object, the present invention has a heat shield plate that covers the entire lower surface of the pot to be heated and the heating coil, and is located above the control board.

Function In the cooking device of the present invention, with the above configuration, the heated pot is directly heated by the heating coil, and most of the generated heat can be used within the heated pot. In addition, the heat generated by the heated pan and heating coil is reflected by the heat shield plate provided below, so the temperature rise inside the cooker body is suppressed to a low level, and the control board can be protected from high temperatures.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIG. In FIG. 1, reference numeral 11 denotes a heated pot in which food is placed and cooked, and is heated by magnetic flux generated from a heating coil 12.
is located below, and is entirely covered by a fully insulating case 13 to prevent the risk of electric shock. Furthermore, heating coil 1
The magnetic flux No. 2 is generated and controlled by the high frequency control board 16 located below the heat shield plate 22. 14 is a heat-sensitive element that detects the temperature of the heated pot 11, and the high-frequency control board 1
When the heated pot 11 is heated, the high frequency control board 16 and the body 18 are connected to Since the internal temperature rises, the inside of the body 18 is cooled by rotating the cooling fan 19 to let outside air in through the intake port 20 provided in the body 18 and to exhaust heated air through the exhaust port 21.

Next, the operation of the configuration of this embodiment will be explained. First, since the heat-sensitive element 14 is in contact with the heated pot 11, the temperature of the heated pot 11 heated by the heating coil 12 can be accurately detected. In addition, since the heated pot 11 is held only by the convex portion 23 provided on a part of the heat shield plate 22, the heated pot 11
Thermal efficiency is high because the heat generated is conducted elsewhere and does not escape. Furthermore, the heat shield plate 22 covers the entire lower surface of the heated pan 11 and the heating coil 12 and is located above the high frequency control board 16, so the heat generated by the heated pan 11 and the heating coil 12 is prevented by the heat shield plate 22. As a result, the temperature rise inside the body 18 can be suppressed, and the temperature rise of the high frequency control board 16 can also be suppressed, so the cooling fan can be made smaller, reducing costs and making the main body thinner. .

Next, an example of the material of the heat shield plate 22 will be described.

Since the heat shield plate 22 is molded from aluminum or nium, it reflects the leakage magnetic flux generated from the heating coil 12 and prevents the leakage magnetic flux from having an adverse effect on the high frequency control board 16 and the floor surface made of a material heated by the magnetic flux. Even if the cooker is used, the floor surface temperature will not rise due to leakage magnetic flux. Moreover, the same effect can be expected even if the heat shield plate 22 is a steel plate plated with aluminum.

Effects of the Invention As described above, the present invention dissipates the heat generated by the heated pot and heating coil by covering the entire lower surface of the heated pot and heating coil with a heat shield plate and further positioning it above the control board. By reflecting the heat with the heat shield plate, the control board can be protected from heat, so a large cooling device is not required, the cooling fan can be made smaller, and the cost can be reduced and the main body can be made thinner.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a cooking device showing one embodiment of the present invention;
The figure is a sectional view of a conventional cooking device. 11... Heated pot, 12... Heating coil, 16... Control board, 22... Heat shield plate.

Claims (1)

[Claims] A heated pot with an outer peripheral edge raised upward, a heating coil located below the back surface of the heated pot, a control board for controlling the heating coil, etc., and a heat shield plate, the heat shield plate The cooking device is characterized in that it covers the entire lower part of the heated pot and heating coil, and is located above the control board.