JPS5825948Y2 - Cooking rice thermal container - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rice-cooking and heat-insulating container that cooks rice using gas firepower, wraps the rice-cooking pot with a heat-insulating heat-insulating layer, and actively heats and retains heat using an electric heating device.

As this type of rice-cooking heat insulating container, the Utility Model 50-111387
There is one mentioned in the publication.

This is done by providing an outer pot within the upper frame, placing an insulating heat-retaining layer around the entire outer circumference of the body of the outer pot, embedding a heat-retaining heater in the insulating layer, and placing a gas burner facing the bottom of the outer pot. The space between the outer periphery of the body of the pot and the upper frame is used as an exhaust passage, and the rice cooking pot is used by being housed within the outer pot.

In this case, since the rice cooking pot is heated indirectly via the outer pot, the thermal efficiency during rice cooking using gas-fired power is lower than that of a rice cooker that directly heats the rice cooking pot.

On the other hand, there is one in which a rice cooking pot is directly heated, a heat insulating layer is provided around the inner periphery of the upper frame, and an exhaust passage is provided between the inner periphery of the heat insulating layer and the outer pot surrounding the body of the pot. Jitsukai 50-13
It is disclosed in Japanese Patent No. 9783.

In this case, the thermal efficiency during rice cooking is improved compared to the above-mentioned rice-cooking and heat-insulating containers, but because there is an exhaust passage between the heat-insulating layer and the rice-cooking pot (hereinafter simply referred to as the pot), the heat-insulating efficiency decreases. It becomes what it is.

The object of the present invention is to directly heat the bottom of the pot and to reduce heat loss from the body of the pot and the upper part thereof.

The technical means of the present invention is that in this type of rice-cooking and heat-insulating container,
A cylindrical heat insulating layer formed on the inner periphery of the upper frame and filled with a heat insulating material is provided, and the pot is accommodated in the heat insulating layer, and in this accommodated state, only the bottom of the pot protrudes from the heat insulating layer. The bottom part is configured to directly face the main burner, and almost the entire area inside the lid covering the top of the pot is a heat-insulating layer filled with a heat-insulating material.

According to the above technical means, since the bottom of the pot is directly heated by the main panna, the thermal efficiency during rice cooking is improved compared to the conventional indirect heating method.

Furthermore, since the body of the pot is directly covered by the heat-insulating layer during heat retention, the body of the pot is not air-cooled during heat retention, and heat loss from this portion can be reduced.

Since the present invention has the above configuration, it has the following advantages.

Since the bottom of the rice-cooking pot protrudes from the lower end of the heat-insulating layer, there will be no pitted exhaust gas pools in the exhaust gas passage leading to the outer periphery near the bottom of the pot when the temperature is low, and the flow of combustion exhaust will also be improved. It is smooth and prevents combustion defects caused by exhaust gas accumulation in the low temperature range.

On the other hand, Japanese Utility Model Publication No. 50-9257 discloses a rice cooker in which a heat storage type heat insulating layer is used to wrap the rice cooker. If the gas reaches the stove and burns, a part of the gas heat during rice cooking will be absorbed by that part, and the thermal efficiency during rice cooking will decrease accordingly, but according to the above structure of the present invention, such inconvenience does not occur.

Hereinafter, details of embodiments of the present invention will be explained based on the drawings.

In the figure, 1 is a pot, which is placed inside an inner body 3 fixed in an upper frame 2, and a bottom part 5 below a stepped part 4 is a lower case 6.
exposed on the side.

A dividing plate 7 is fixed between the lower part of the upper frame 2 and the lower end of the same side 3, and the upper frame 2, the inner body 3, and the dividing plate form a heat retaining layer containing a heat retaining material 8. A heat-retaining heating element 9 is fixed inside the upper end and brought into contact with the inner shell 3.

The lower end of the upper frame 2 is placed on the periphery of a soup tray 10 fitted above the lower case 6, and exhaust holes 11, 11 are opened between the supporting plate I and the lower end.

A main burner 12 , a thermal response device 13 , and a valve device 14 are built into the lower case 6 , and among these, the heat sensitive direction 15 of the heat response device, which is arranged to be able to rise and fall within the main burner 12 , is located on the outer surface of the pot bottom 5 . are in contact.

Furthermore, 16 is a lid body, one end of a handle 17 attached to the top surface of the lid body is pivotally supported by a receiving part 18 fixed to the upper part of the upper frame 2, so that it can be opened and closed freely. An engaging portion 20 at the tip of the hook 19 can be engaged with and disengaged from an engaging groove 22 at the upper end of a decorative plate 21 fixed to the upper frame 2.

The lid 16 is provided with a steam release valve 23, and the inside thereof is filled with a heat-retaining material 24, and a heat-retaining heating element 25 is fixed to the lower surface of the lid to keep the upper portion of the pot 1 warm.

26 is an inner lid, which hangs down from the center of the lid body 16 and has a spring 27
The upper end step part 29 of the pot 1 is
is under pressure.

Reference numeral 30 denotes an auxiliary lid attached to the lid 16, which forms a heat insulating space between it and the inner lid 26, and is tightly joined to the upper periphery of the pot 1 to promote heat retention.

In the case of the embodiment described in detail above, rice is cooked with sufficient heat from the main burner 12, so that the rice cooking time is shortened and the rice can be cooked well, and the rice can be kept warm by electricity after the rice is cooked. Become.

In this case, the operation knob 3 of the valve device 14
1 and a heat retention circuit selector switch (not shown) are configured so that the heat retention circuit is closed when rice cooking is completed, the heat retention heaters 9 and 25 can greatly reduce the unevenness effect after rice cooking is completed. To contribute.

In addition, since the structure is such that the upper frame 2 is simply placed on the lower case 6, the upper frame 2 can be carried around the dining table, etc., so it can be used in exactly the same way as a regular electric heating pot, and the lower part Since there is no extra space for Case 6, etc., Case 11 can also be used as a "button" during meals.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the embodiment of the present invention, in which 1...pot, 2...upper frame, 5...bottom, 6...lower case, 9...heat-retaining heating element. , 12... Main burner, 25...
・Heating element for heat retention.

Claims (1)

[Scope of utility model registration request] Formed on the inner periphery of the upper frame 2 in a rice-cooking and heat-insulating container that cooks rice using gas firepower, surrounds the pot with a heat-insulating layer filled with a moisturizing material, and actively heats and retains heat using an electric heating device within the heat-insulating layer. In addition, a cylindrical heat-retaining layer filled with a heat-retaining material is provided, and 11 of the pots 1 are accommodated in the inner shell 3 of the heat-retaining layer, and in this accommodated state, only the bottom of the pot 1 protrudes from the heat-retaining layer, and the bottom is This rice-cooking and heat-insulating container has a main burner 12 of a lower case 6 directly aligned with it, and almost the entire area of a lid 16 that covers the upper part of a pot 1 is filled with a heat-insulating material.