JPH046665Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The invention relates to a jiyar rice cooker, especially after cooking rice.
This invention relates to a jar rice cooker that can kill germs by using the sterilizing power of ozone in a heat-retaining state.

<Conventional Technology> A conventional jiya rice cooker is designed to keep cooked rice at an appropriate temperature.

By the way, when the lid is opened and closed, bacteria in the air (particularly Bacillus subtilis) acts on the cooked rice in the inner pot, resulting in problems such as the generation of odors and spoilage of cooked rice.
Rice may become inedible. However, the temperature that is unsuitable for the growth of bacteria is higher than the optimal temperature for storing cooked rice, so if rice is stored at such high temperatures, the moisture in the rice will gradually evaporate, and if the rice is stored for a long time, The rice becomes dry and becomes inedible.

Therefore, with conventional Jiyar rice cookers, even if the temperature is slightly lower than the optimum temperature for suppressing the growth of bacteria,
It is designed to keep rice warm.

<Problems that the invention aims to solve> Therefore, it is difficult to completely suppress the growth of bacteria with conventional methods, and the generation of odors and spoilage of cooked rice tend to be unavoidable to some extent. .

The present invention was devised in view of the above circumstances, and aims to provide a jar rice cooker that can keep cooked rice at an optimal temperature and actively kill germs.

<Means for solving the problems> The jar rice cooker according to the present invention includes an ozone generator to which air in an outer pot heated by a heat-retaining heater or a rice-cooking heater is introduced, and an ozone generator that generates air from the ozone generator. It has a discharge pipe that leads ozone to the inner pot.

<Operation> Ozone is generated by an ozone generator, and the ozone is blown into the inner pot in which cooked rice is stored through a discharge pipe. Then, the ozone destroys the sterilizing cell walls, killing the germs.

<Example> Hereinafter, an example according to the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal cross-sectional view of a jar rice cooker according to the present invention.

The jar rice cooker according to the present invention has a rice cooking function and a heat retention function, and the inside of the outer tank 70 is filled with a side insulation material 40 made of glass wool or the like. The outer pot 30 is
It has a double structure in which an inner pot 31 is provided inside an outer pot 30. Inner bottom surface of outer pot 30 and inner pot 3
An aluminum die-cast heat equalizing plate 80 is interposed between the outer bottom surfaces of the rice cooker 1, and a rice cooking heater 81 is embedded as a sheath heater inside the heat equalizing plate 80. At the upper part of the inner pot 31, an inner lid 61 made of aluminum, for example, covers the inner pot 31. An appropriate number of small holes 611 are formed in the inner lid 61. 62 is an upper heat insulating material filled inside the lid 60. A spiral heater 50B is disposed inside the upper insulating material 62, and a heat retaining heater 50A is wound in a coil shape inside the side insulating material 40. In addition, 7
Reference numeral 1 designates a handle that hinges the outer tank 70 and the lid 60 together.

The ozone generator 10 is installed in a space between the outer pot 30 and the outer tank 70. 12 is a high frequency high voltage generating transformer, and this high frequency high voltage generating transformer 12
is connected to a silent discharge electrode 11 provided inside the ozone generator 10. A suction pipe 14 connects the bottom of the outer pot 30 and the ozone generator 10, and is made of, for example, silicone resin, aluminum, stainless steel, or the like. This suction pipe 14 is provided with a pump 13 that sends air toward the ozone generator 10 . 20 is a discharge pipe, and this discharge pipe 20 is made of a flexible material such as vinyl chloride. This discharge pipe 20 is connected to the ozone generator 1
0, passes through the inside of the side insulation material 40, and enters the inside of the lid 60 via the handle 71,
It is connected to the center hole of the inner lid 61. In addition, 21
is a retainer for connecting the edge of the discharge pipe 20 and the inner lid 61.

The operation of the jar rice cooker configured as above will be explained.

Rice is put into the inner pot 31 and cooked. The operation at this time is no different from the conventional one.

The pump 13 operates and air, that is, the outer pot 3
The air heated by the heat retention heater 50A or the rice cooking heater 81 is sent to the ozone generator 10 side.

Heated air is introduced into the ozone generator 10, and a voltage from a high-frequency, high-voltage generating transformer 12 is applied to a silent discharge electrode 11 provided inside. This causes a silent discharge, and oxygen in the air changes to ozone. Note that since air is heated, ozone is generated more efficiently than air that is not heated.

The generated ozone is introduced into the inner pot 31 from the suction pipe 14 through the discharge pipe 20 by the suction action of the pump 13. At this time, the discharge pipe 20
The ozone inside is heated between the inner pot 31 and the outer pot 30 and introduced into the inner pot 31 (rice cooking chamber 311) as dried ozone.

Since the specific gravity of ozone is greater than that of air,
Ozone discharged into the rice cooking chamber 311 by the discharge pipe 20 is uniformly diffused into the rice cooking chamber 311.

Bacteria (particularly Bacillus subtilis) present in the air in the rice cooking chamber 311 have their cell walls destroyed by the oxidizing power of ozone diffused into the rice cooking chamber 311 and become extinct. Note that since ozone has very strong oxidizing power, a low ozone concentration of about 1 ppm is sufficient in the rice cooking chamber 311.

<Effects of the invention> According to the Jiyar rice cooker according to the invention, the ozone generated by the ozone generator can destroy the cell walls of germs and kill them, so cooked rice can be stored at the optimal temperature. This can prevent the generation of odors and spoilage of cooked rice. Therefore, the cooked rice does not dry out even when stored, so the cooked rice can be stored for a long time. In addition, the jar rice cooker according to the present invention can set the temperature at which cooked rice is stored lower than conventional ones, so the capacity of the heater can be reduced, and the heat insulating material can also be made thinner. .

Because heated air is introduced into the ozone generator, the ozone generation efficiency is higher than that of unheated air. In addition, the air led to the ozone generator is heated by the heat retention heater or rice cooking heater that a regular jar rice cooker has.
There is no need to provide a special heater to heat the air.

[Brief explanation of the drawing]

FIG. 1 is a schematic vertical cross-sectional view of a jar rice cooker according to the present invention. 10...Ozone generator, 14...Suction pipe, 20
...Discharge pipe, 31...Inner pot.

Claims (1)

[Scope of utility model registration request] It is equipped with an ozone generator that directs the air in the outer pot heated by a heat-retaining heater or rice-cooking heater, and a discharge pipe that guides the ozone generated by the ozone generator to the inner pot, which reduces the oxidizing power of ozone. This jiya rice cooker is characterized by being designed to kill germs inside.