JPS5846914A - Electric cooker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric cooking appliance having a circuit storage box provided at the lower end of the main body.

Conventional electric cookers have a circuit storage box at the bottom of the main body, and the control circuit unit inside this circuit storage box has the disadvantage that the inside of the circuit storage box gets hot, so it is necessary to form a ceiling hole at the top of the circuit storage box. was proposed. However, in this case, there is a drawback that the cooking liquid or the like drips directly into the circuit housing box or accumulates in the recessed portion of the outer periphery, emitting a bad odor. In addition, the broth is transmitted through the lead wire,
It flowed into the control circuit unit, causing circuit failure and posing a risk of fire.

The present invention solves the above-mentioned conventional drawbacks, and embodiments of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, 1 is a cylindrical main body, 2 is a heating element fixed on a protective frame 3 whose outer periphery is fixed to the main body 1, 4 is a pot placed on the heating element 2, and 6 is a heating element that is placed on the heating element 2 through a backing 6. This is a lid that covers the upper opening of the pot 4 in a sealed and pressurized manner. 7 is a first safety valve to prevent an explosion when the pressure inside the pot increases abnormally; 8 is a melting type second safety valve using a eutectic alloy; 9 is a safety valve for preventing explosions when the pot 4 and lid 6 are not fully engaged. This is a safety lever that lifts up the first safety valve 7 to allow pressure to rise. 1o is a lid handle provided on the lid 6, 11 is a main body handle attached to both sides of the upper part of the main body 1, 12 is a pot handle attached to both sides of the pot 4, 13 is a display board equipped with a timer 14, etc., and 16 is a This is a safety switch to prevent electricity from flowing when the pot is not mounted. 16 is a control circuit unit that passes through the heating element 2 and controls the calorific value of the heating element 20 based on a signal from a heat-sensitive device 17 that senses the pot temperature; 18 is a radiation fin; 19 is a control circuit unit that covers the control unit 16 and the radiation fin 18; , a circuit storage box with integrally molded legs. In addition, a heat shield plate 20 that protects the control circuit unit 16 in the circuit storage box 19 from radiant heat from the heating element 2 and also serves as a water catcher from the center of the protection frame has a gap above the circuit storage box. Further, a back plate 21 is provided on the back surface of the circuit housing box to protect the control circuit unit 16 and the heat radiation fins 18 from the lower part of the circuit storage box. A ceiling hole 22 is formed in the upper part of the circuit storage box 19, and a hole 23 is formed in the outer periphery.

The ceiling hole 22 is equal to or larger in size than the control circuit unit 16, and the heat shield plate 20 is larger than the ceiling hole 22.

In the above configuration, even if boiling liquid or the like drips from the central hole of the heating element 2, the boiling liquid is received by the heat shield plate 2o and does not drip onto the control circuit unit 16. In addition, the broth dripped onto the heat shield plate 2o drips onto the outer periphery of the circuit storage box 19, and holes 23 are formed in this outer periphery.
3 and is discharged to the outside. Furthermore, since the ceiling hole 22 is formed in the upper part of the circuit storage box 19, the ambient temperature of the control circuit unit 16 can be lowered.

Furthermore, external low-temperature air flows in through the hole 23 on the outer periphery of the circuit storage box 19, thereby suppressing the rise in temperature of the timer 14 and the safety switch 16.

As is clear from the above description, according to the present invention, the control circuit unit is stored in the circuit storage box provided at the bottom end of the main body, a heat shield plate is provided to cover the ceiling hole in the upper part, and a groove is formed on the outer periphery. This prevents boiling liquid from dripping into the control circuit unit.
In addition to preventing circuit failure, the boiling liquid and the like are discharged to the outside through the holes in the outer periphery, so it is possible to prevent the generation of bad odors.

Furthermore, the presence of the ceiling holes and holes can prevent an increase in the ambient temperature of the control circuit unit.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an electric cooking device showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view of essential parts of the same. 1... Body, 2... Heating element, 4...
... Pot, 16 ... Control circuit unit, 17.
...Thermal device, 19...Circuit storage box, 22...Ceiling hole, 23...Hole. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

[Scope of Claims] A cylindrical main body, a heating element provided in the main body, a pot placed on the heating element, a heat-sensitive device that penetrates the heating element and senses the temperature of the pot, and a heat-sensitive device for detecting the temperature of the pot. a circuit storage box provided at a lower end; a control circuit unit provided in the circuit storage box for controlling energization of the heating element in accordance with the pot temperature sensed by the heat-sensitive device; and a control circuit unit formed in the upper part of the circuit storage box. and a heat shield plate covering a ceiling hole, the electric cooking device having a hole formed in the outer periphery of the circuit storage box. !