JPS6040173Y2 - rice cooker - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rice cooker that is composed of a gas stove part and an electric rice cooker part, and which cooks rice with a gas burner and keeps it warm with an electric heater.

Conventionally, some electric appliances of this type of rice cooker are composed of a heat insulating container, an inner pot, and a heat insulating lid.The inner pot is housed inside the heat insulating container and the heat insulating lid and cannot be seen from the outside. Sometimes the gas burner would ignite.

Therefore, in this invention, in order to activate the rice-cooking heat-responsive device and automatically stop the combustion of the gas burner even in the event of such an erroneous operation, a protrusion is formed on the hot plate provided at the bottom of a part of the electric jar. This is intended to prevent the appliance from being burnt out when igniting without the inner pot installed, without providing a separate device.

An embodiment of the present invention will be described below with reference to the drawings.

In Figures 1 and 2, 1 is the gas stove part, and the bottom frame 2
It consists of a gas burner 3 provided in the center of the stove, a thermal response device 4, an operating knob 5, stove legs 6, and a rubber tube lower.

Rice is cooked by burning gas in a gas burner 3 of this gas stove part 1 and heating an inner pot 13, and when the rice cooking is completed, combustion is automatically stopped by a thermal response device 4.

Reference numeral 8 designates a part of an electric jar, in which a heat insulating container is formed by an outer frame 9, an inner frame 10, a heat insulating material 11 interposed therebetween, and a hot plate 12 at the bottom, and an inner pot 13 used for cooking rice is housed therein. , outer lid 14 inner cover 15 and heat insulating material 16 interposed therebetween
The inner lid 17 at the lower part forms a heat-insulating lid part, and the heat-insulating container, the inner pot 13, and the heat-insulating lid part constitute a heat-insulating chamber.

Therefore, the temperature of cooked rice in the inner pot 13 of the insulating chamber is maintained at about 70° C. by an electric heater 18 and a thermostat 19 attached to the outer peripheral surface of the inner frame 10 and an electric heater 20 attached to the upper surface of the internal force bar 15.

The bottom of the inner pot 13 is in close contact with the upper surface of the hot plate 12, and the bottom surface of the hot plate 12 is heated by the combustion flame of the gas burner 3 to cook the rice in the inner pot 13.

The hot plate 12 is provided with a central opening 30, through which the temperature sensing part of the thermal response device 4 faces into the insulating chamber, and the inner pot 13
The heat-responsive device 4 closes the inner pot 13 when rice cooking is completed.
Combustion of the gas burner 3 is stopped by detecting the bottom temperature.

Reference numeral 21 operates the bundle to open and close the heat insulating lid.

A combustion chamber 22 is composed of a saucer 23, four supports 24, and a heat insulating frame 25.

The saucer 23 covers the upper opening of the bottom frame 2 and has an opening in the center from which the gas burner 3 projects.

The heat insulating frame 25 has a ring shape with four small openings, and the opening in the center faces the heat plate 12 upward.

The support 24 has a cylindrical shape in the upper part that looks into the four small openings of the heat insulating frame 25, and connects the saucer 23 and the heat insulating frame 25 to form the exhaust port 2.
6 and also accommodates a leg 27 of the electric jacket at the lower part of the outer frame 9.

The gas burner 3 is inserted into the combustion chamber 2 from the opening of the saucer 23.
2 and heats the hot plate 12 forming the upper surface of the combustion chamber 22, and the exhaust gas is discharged to the outside from the exhaust port 26.

The upper surface of the heat insulating frame 25 is in contact with the lower surface of the heat plate 12, separated from the outer frame 9, and protrudes toward the outer periphery, so that the outer frame 9 is not heated by exhaust gas.

Further, since the electric jack part leg 27 is also surrounded by the support 24, it is not directly heated by the exhaust gas.

Now, a cylindrical projection 28 is provided around the lower side of the central opening 30 of the hot plate 12, and a ring-shaped projection 29 is provided around the lower side of the outer periphery.
, and the height of the ring-shaped projection 29 is set higher than that of the cylindrical projection 28.

This embodiment has the above-mentioned configuration, and when the gas burner 3 is ignited without the inner pot 13 installed, the gas burner 3
The combustion gas heats the hot plate 12, but since the cylindrical protrusion 28 of the central opening 30 is lower in height than the ring-shaped protrusion 29 of the outer periphery, the combustion gas flows in that direction and further heats the hot plate 12.
The liquid tends to flow into the heat insulating container through the gap between the central opening 30 and the thermal response device 4 within the opening.

At this time, when the thermal response device 4 is heated and reaches about 150° C., it is activated and automatically stops combustion in the gas burner 3.

According to the present invention, since the central opening of the hot plate is set lower than the outer periphery, combustion gas flows into the opening, and even if the gas burner is ignited without the inner pot installed, the thermal response device will not function. Since the rice cooker is activated and combustion is stopped, a safe rice cooker can be obtained that can prevent burnout inside the heat insulating container.

[Brief explanation of the drawing]

FIG. 1 is a front view showing one embodiment of the rice cooker of the present invention, FIG. 2 is a sectional view showing the structure of the same embodiment, and FIG. 3 is an enlarged sectional view of the hot plate of the same embodiment. 3...Gas burner 4...Thermal response device, 8...Part of the electric jack, 12...Hot plate, 28...Cylinder Ring-shaped projection, 29...Ring-shaped projection, 30...Central opening.

Claims (1)

[Scope of utility model registration request] A rice cooker that consists of a gas stove part and an electric stove part, cooks rice with a gas burner, and keeps warm with an electric heater.
An opening 30 is provided in the center of the hot plate 12 provided at the bottom of the electric jacket part 8 and heated by the gas burner 3.
A cylindrical protrusion 28 is formed around 0, and a ring-shaped protrusion 29 is formed on the outer periphery of the hot plate 12 on the gas burner side, and the height of the ring-shaped protrusion 29 is higher than that of the cylindrical protrusion 28. The rice cooker is characterized in that the central opening 30 is configured such that a heat-sensitive part of the thermal response device 4 can be fitted therein.