JPS6135842B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement of a heat-retaining gas rice cooker, and in particular, in order to enable long-term heat retention using gas firepower, the present invention includes a container (pipe), a pipe, and a working fluid for a heat-retaining burner. It is made of three elements, or in special cases two elements other than heat pipes, and is compatible with heat pipes to achieve high efficiency and appropriate heat retention.In addition, a new heat insulation layer that wraps around the rice cooker is used. By making improvements, it is possible to downsize this type of gas rice cooker that requires an exhaust passage.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure and effects of the present invention will be described in detail below with reference to illustrated embodiments.

In Fig. 1, reference numeral 1 denotes a rice cooker, which is fitted into and placed on a pair of heat storage heat insulators 3, 3 fixed to the body of an inner shell 2, and whose flange 4 is held between the two heat insulators. It is in direct or indirect contact with the upper end edge winding of the pipe 5. The lower part of the inner shell becomes a combustion chamber 6, and a plurality of holes 7, 7 are opened in the combustion chamber, and an appropriate gap 9 is provided between the inner shell 2 and the main body case 8.
is provided, and the gap is opened at the upper end edge of both, thereby making the combustion chamber 6 communicate with the upper end opening.

Various devices for rice cooking are housed below the inner body 2 at the bottom of the main body case 8, of which the combustion parts of the main burner 10 and the heat retention burner 11 protrude into the combustion chamber, and the main burner 10 protrudes into the combustion chamber 6. rice cooker 1
The other heat retaining burner corresponds to the bottom end of the heat pipe 5. The heat pipe 5 is wound in a spiral manner, and is mounted in contact with heat storage and heat insulating bodies 3, 3 made of asbestos, ceramic, etc. and having appropriate grooves formed therein, and one end of the heat pipe 5 is bent downward. It protrudes from the lower end of the heat storage heat insulators 3, 3, and the other end is wound around the upper edge thereof.

Reference numeral 12 denotes a lid filled with a heat insulating material, which is positioned so as to cover the upper part of the rice cooker 1, and is attached to the main body case 8 in a single-opening manner, and further includes an inner lid removably connected to the center of the lower surface of the lid. The inner lid 13 opens and closes integrally with the lid 12, and when the lid is closed, the inner lid covers the rice cooker 1 and its periphery comes into contact with the collar 4.

In the case of the above-described embodiment, during rice cooking, the rice is mainly heated by the main burner 10, and after the rice is cooked, it is kept warm by the combustion heat of the warming burner 11. Here, the thermal power of the main burner 10 during rice cooking not only acts to heat the bottom of the rice cooking pot 1 that protrudes from the heat storage heat insulators 3, 3, but also partially After the rice cooking is completed, the temperature of the heat insulating body is increased. At the same time, after rice cooking is completed, since the heat retention burner 11 heats one end of the heat pipe 5, this local heating is quickly transferred to the entire area of the heat storage and heat insulating bodies 3, 3 due to the action of the heat pipe, and the heat storage and heat insulating body 3 is heated. The body is maintained at a suitable temperature throughout the body. Therefore, the entire circumference of the rice cooker 1 is uniformly heated and kept warm.

Next, the upper edge of the heat pipe 5 is located close to the flange 4 of the rice cooker 1, and a part of the heat from the heat pipe 5 moves to the inner lid 13 via the flange 4. to keep it at an appropriate temperature. Thereby, the cooked rice accommodated in the rice cooker 1 is uniformly heated and kept warm from above and from the circumferential side, and the cooked rice can be appropriately kept warm for a long period of time. Here, since the inner lid 13 is also heated slowly, the steam generated from the cooked rice does not condense on the inner lid and drip into the stored cooked rice.
This also prevents the taste of cooked rice from deteriorating while it is being kept warm.

Next, in the case of a heat retention type gas rice cooker, a gap 9 for exhaust is required in the case of the illustrated embodiment, and if the heat insulation layer surrounding the circumferential side of the rice cooker 1 is made of a heat insulating material such as ordinary glass wool. , although the outer diameter of the heat insulating layer, that is, the outer diameter of the main body case 8 becomes larger,
According to the present invention, since the heat storage and heat insulating bodies 3, 3 are made of asbestos, ceramic, etc., the thickness thereof can be made extremely thinner than that of the heat insulating layer, and as a result, the outer diameter of the main body case 8 can be reduced. I can do it.

As described in detail above, in the thermal gas rice cooker of the present invention, the peripheral side of the rice cooking pot 1 is covered with a heat storage body having a large unit heat capacity such as asbestos or ceramic, and a heat pipe is provided inside the heat storage body. 5 is housed in a wound state, and one end of the heat pipe is exposed from the heat storage and heat insulating body, and a heat insulating burner 1 of an appropriate capacity is installed.
1, the heat-retaining gas rice cooker is compact and has excellent heat-retaining performance.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of an embodiment of the present invention, and in the figure, 1... rice cooker, 3, 3... heat storage heat insulator, 11...
...Heating burner, 12...Lid body.

Claims (1)

[Claims] 1 Lid body 1 filled with heat insulating material at the top of rice cooker 1
2, and its circumferential side is covered with a heat storage heat insulator having a large unit heat capacity such as asbestos or ceramics, and a heat pipe 5 is wound around the heat pipe 5 built into the heat storage heat insulator, and one end of the heat pipe is covered with a heat pipe 5. A heat-retaining gas rice cooker characterized in that the heat-storing heat insulator is exposed from the lower end thereof and heated by a heat-retaining burner 11 of an appropriate capacity.