JPH0347084B2 - - Google Patents

Description

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

BACKGROUND TECHNOLOGY Conventionally, this type of cooking appliance has a heat shield plate provided above the circuit chamber to protect the bottom board in the circuit chamber provided at the bottom of the cooking appliance body from heat during cooking. There was no structure to prevent hot air from flowing between the upper part of the circuit room and the heat shield.

Problems to be Solved by the Invention In such a conventional configuration, there was a problem in that hot air flows between the upper part of the circuit chamber and the heat shield plate, increasing the temperature of the bottom board within the circuit chamber.

The present invention solves these problems,
The purpose is to ensure that the temperature of the bottom substrate does not rise even during cooking, so that cooking can be carried out safely.

Means for Solving the Problems In order to solve the above conventional problems, the present invention has the following features:
A space is provided above the circuit room that houses the bottom board equipped with electronic components, and a heat shield plate is installed in the space, and heat shield ribs are provided from the side walls of the cooker body to the center in parallel with both side walls of the circuit room. By bringing these heat shielding ribs into contact with the heat shield plate, an air chamber is formed between the upper part of the circuit room and the heat shield plate, and the surrounding area is closed so that no heated air flows in. .

Effect According to this configuration, by providing an air chamber between the upper part of the circuit room and the heat shield plate and keeping this air chamber in a sealed state, hot air during cooking will not flow into the upper part of the circuit room. . Furthermore, air acts as a good heat insulator and can prevent heat conduction from the heating element, thereby preventing the temperature of the circuit chamber and the bottom board from rising.

Embodiment Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 3. In the figure, 1 is the cooker main body,
2 is an outer pot attached to the inside of the main body 1 via a heat insulating frame 3; 4 is a heating element for cooking provided at the bottom of the outer pot 2; 5
An inner pot is detachably placed on a heating element 4 for cooking, and this inner pot 5 is detachably installed in the outer pot 2 and is made of a material with good thermal conductivity.
6 is an inner lid that covers the upper opening of the inner pot 5; 7 is the inner lid 6;
8 is a heat-retaining heating element disposed around the entire upper side of the outer pot 2; 9 is a heat insulating material interposed between the main body 1 and the outer pot 2; 10 is a plurality of push button switches 11; and a circuit board 13 having a display 12
14 is a film-like decorative sheet affixed to the operation panel of the display board 10, and 15 is a lead wire that transmits operation signals from the circuit board 13 to the bottom board 16 equipped with electronic components. ,1
7 is a sensor that comes into contact with the bottom of the inner pot 5 to detect the temperature. The circuit board 13, the bottom board 16, and the sensor 17 are connected to each other, and the push button switch 1
Cooking can be done by operating 1. 18 is a bottom board cover that covers the bottom board 16; 19;
is a back plate that covers the opening of the bottom portion 1a of the cooking device main body 1, and a cord reel 20 is attached to the back plate. 21
is a heat shield plate that blocks heat from the cooking heating element 14, and this heat shield plate 21 has a hole 21b connected to the cooking device main body 1.
Hang it on the mounting piece 22 provided on the bottom 1a of the
It is attached by screwing to a fixing boss 24 provided at the upper part of the circuit chamber 23 that houses the bottom board 16. Reference numeral 25 denotes a heat shielding rib provided from the side wall to the center of the bottom portion 1a of the cooking device main body 1, and the heat shielding rib 25 is brought into contact with the heat shield plate 21. An air chamber 26 sealed by the heat shield plate 21, the upper part of the circuit chamber 23, and the heat shield ribs 25.
will be formed. In this case, instead of the heat shielding rib 25, the heat shield plate 21 is bent along the side wall of the circuit chamber 23 as shown in FIG.
Alternatively, the air chamber 26 may be formed by integrally forming the bent portion 21a with the bottom portion 1a of the cooking device main body 1.

As is clear from the above structure, in the embodiment of the present invention, a sealed air chamber 26 is formed between the upper part of the circuit chamber 23 and the heat shield plate 21, so that hot air during cooking is transferred from the circuit chamber. It does not flow to the top. Moreover, the air in the air chamber 26 acts as a good heat insulating material and prevents heat conduction from the heating element 9, thereby preventing the temperature of the circuit chamber 23 and the bottom board 16 from rising.

Effects of the Invention As described above, according to the present invention, since the air chamber with excellent heat insulation effect is provided between the upper part of the circuit room and the heat shield, hot air during cooking does not flow into the upper part of the circuit room. In addition, it is possible to efficiently prevent heat conduction from the heating element, prevent the temperature rise of the circuit chamber and the bottom board, and achieve the effect that cooking can be carried out safely.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a main part of a cooking device showing one embodiment of the present invention, Fig. 2 is a sectional view of the main part, and Fig. 3 is a perspective view of a heat shield plate showing another embodiment of the same cooking device. FIG. 4 is a cutaway side view of the cooking device. 1a...Bottom part of the cooking device main body, 16...Bottom board,
21... Heat shield plate, 21a... Bent portion, 23... Circuit chamber, 25... Heat shield rib, 26... Air chamber.

Claims (1)

[Scope of Claims] 1. A circuit chamber for accommodating a bottom board equipped with electronic components is provided at the bottom of the cooking device main body, and a space is provided above the circuit chamber and a heat shield plate is attached to the circuit chamber. A heat shielding rib is provided on the top of the circuit room to prevent air from flowing in from the space inside the cooking device body, and the heat shielding rib is brought into contact with the heat shield plate to create a space between the upper part of the circuit room and the heat shield plate. A cooker characterized by forming a closed air chamber. 2. The cooking device according to claim 1, wherein the heat shield plate is bent along the side wall of the circuit chamber, and the bent portion is brought into contact with the bottom of the cooking device main body.