JPS601004B2 - rice cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rice cooker that cooks rice with a gas burner and keeps it warm with an electric heater, and aims to cook delicious rice and keep it warm accurately.

It is well known that gas rice cookers can cook more delicious rice than electric rice cookers, mainly due to the amount of heat. but,
Even gas rice cookers with excellent rice cooking functions,
Due to the combustion characteristics of the gas burner, it is technically difficult to accurately control the low heat power for heat retention, and it has been difficult to create a heat retention type. The present invention eliminates these conventional drawbacks, and embodiments thereof will be described below with reference to the accompanying drawings.

In the figure, 1 is a gas stove that has a thermal reactor 2 and a gas burner 3 whose combustion is controlled by it, 4 is a rice cooker that is detachably mounted on the gas stove 1,
A pot 6 is housed in an exterior case 5, and the heat-sensitive reactor 2 is in contact with the bottom of the pot 6 and responds to the pot temperature.

Furthermore, the configuration of the rice cooker main body 4 will be explained in detail. The exterior case 5 has a cylindrical shape with upper and lower openings, the edge of the lower opening is bent inward, and a circular bottom plate 7 made of a heat insulating material is provided at the opening. Reference numeral 8 designates an arm-shaped heat insulating case in which a lower opening edge is placed on the inner edge of the bottom plate 7, and is positioned around the outer periphery of the pot 6 with a gap t.

The pot 6 is held within the outer case 5 by placing a stopper shell 9 provided halfway along the circumferential wall on the edge of the entrance of the heat-insulating case 8. Also, the gas burner 3 is in the insulation case 8.
The center hole faces into the gap t, and the bottom of the pot corresponds to the flame opening. 1 Electric heater attached to Kawama thermal case 8, 11
is an exhaust port drilled into the upper sloped wall of the heat insulation case.

The heat insulating case 8 and the stopper 9 are made of a heat conductive material such as aluminum so as to conduct heat well from the electric heater 10. Reference numeral 12 denotes a cylindrical opening/closing body made of a thermally poor material such as stainless steel, which faces the inside of the exterior case 5 and is slidably fitted to the outer periphery of the heat insulating case 8. It has an oblique wall 13 corresponding to 1, and furthermore, from a part of the lower part of the green part, there is a lower part of the exterior case 6.
A protrusion 14 passing through the edge is formed.

When the rice cooker main body 4 is placed on the gas stove 1, the opening/closing body 12 is in a position where it is pushed up via the protrusion 14 on the top surface of the gas stove 1, and the rice cooker main body 4 is removed from the gas stove and placed on a table, etc. When the opening/closing body 12 is placed in the height range of the bottom plate 7 under its own weight, it is set so that the inclined wall 13 closes the exhaust row 1.

Reference numerals 15 and 16 indicate an inner cover and an inner cover that close the pot 6, 17 an outer cover provided with an exhaust gap t' at the upper end of the outer case 5, 18 a hinge thereof, 19 a buckle, and 20 a handle. It is.

21 is a pressure device, and 22 is a heat-sensitive element that is inserted into the rice and controls the amount of electricity supplied to the electric heater 10 in response to the temperature of the rice.

In the above configuration, since the rice cooker main body 4 is placed on the gas stove during rice cooking, the opening/closing body 1 is inserted through the protrusion 14.
2 is raised, and therefore its inclined wall 13 is also separated from the exhaust row 1.

However, when the gas burner 3 is combusted, the bottom of the pot is directly heated by the flame, and the surrounding wall of the pot is heated by the combustion gas flowing from the gap t → the exhaust port 11 → between the pot 6 and the opening/closing body 12 → the exhaust gap t'. It is something that When rice cooking is finished, the heat-sensitive reactor 2 is activated in response to the pot temperature, and the combustion of the gas burner 3 is interrupted. Next, the main body 4 of the rice cooker is removed from the gas stove 1, placed on a suitable place, for example, on a table, and connected to a power source, so that the electric heater 101 can heat the rice cooker to keep it warm. In this case, the opening/closing body 12 is lowered and the exhaust port 11 is closed by the inclined wall 13 thereof.

Heat from the electric heater 14 is conducted to the pot 6 via the heat insulating case 8 and the stopper 9, and since the air layer within the gap t is also heated, there is also heat transfer therefrom.

Therefore, "reliable heat retention is performed. Since the exhaust row 1 of the heat retention case 8 is closed, there is no heat leakage due to convection air, and there is no heat leakage through the opening/closing body 13 made of a heat conductive material. There is almost no heat leakage due to conduction, and heat retention is more efficient than this.As explained above, according to the present invention, delicious rice can be cooked using the heat of gas combustion, and moreover, it can be reliably cooked using the heat of the electric heater. It is possible to provide a rice cooker that is not only capable of keeping the rice warm, but also highly efficient, especially during the heat keeping operation, and is practical and highly economical.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a rice cooker showing an embodiment of the present invention, and FIG. 2 is an enlarged view of the main parts. 1... Gas stove, 3... Gas burner L4... Main rice cooker, 5... Exterior case, 6... Pot
8...Heat insulation case, 10...Electric heater, 11
...Exhaust port, 12...Opening/closing body, t...
gap. Figure 2 Figure 1

Claims (1)

[Scope of Claims] 1. A rice cooker consisting of a pot housed in an outer case is detachably placed on a gas stove, and furthermore, an electric heater for heat retention is provided around the outer periphery of the pot, and the rice cooker is configured to have a pot housed in an outer case. A rice cooker characterized in that a heat insulating case is provided with a gap through which combustion gas flows, and an exhaust port that is opened and closed by an opening/closing member is formed in the heat insulating case. 2. The rice cooker according to claim 1, wherein the opening/closing body is made of a thermally conductive material, has a cylindrical shape, and is located inside the outer case. 3. Claim 1, characterized in that attachment/detachment of the main rice cooker to/from the gas stove and opening/closing of the opening/closing body are linked.
The rice cooker described in item 1 or 2.