JPS605294B2 - rice cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rice cooker that can cook rice evenly and evenly.

In conventional electric rice cookers, for example, a pot is removably placed on the top of a heating plate having an electric heater, and the heat from the electric heater is transferred from the heating plate to the bottom of the pot to cook rice.

However, when rice is cooked in a rice cooker with this conventional structure, the upper part becomes crumbly with less water, while the lower part becomes sticky with a lot of water, resulting in uneven cooking and a loss of flavor. For this reason, in recent years, a space for heating has been provided around the outside of the pot, and a heater has been placed within this space at a predetermined distance from the pot, allowing the Korean heat from the heater to flow and the convection of the air within the space. A rice cooker that heats a pot is being considered. The present invention relates to an improvement of a rice cooker that heats a pot by disposing a heater in the above-mentioned space. By providing the heater in a bent shape, it is possible to cook rice evenly with less uneven cooking. The purpose is to provide equipment. An embodiment of the present invention will be described below. In the figure, 1 is a substantially cylindrical outer case with closed upper and lower surfaces, and 2 is a bottomed cylindrical shape disposed inside this outer case with a heat insulating material 3 interposed therebetween. The upper end of the inner case is fixed by screws or the like to an annular mounting ring 4 made of heat-resistant plastic, for example, which is iron-bonded around the upper end of the outer case 1. Reference numeral 5 denotes a bottom plate having support legs 6, which are fixed to the lower end of the outer case 1 with iron.

Reference numeral 7 designates a pan having an outwardly directed flange 8 formed on the edge of the upper end, and is disposed within the inner case 2 by attaching the flange 8 to the upper surface of the mounting ring 4.

The height and outer diameter of the pot 7 are set to 4 mm higher than the inner case 2, so that the inner case 2 is placed around the outer periphery of the pot 7.
A space 9 which is in a substantially opened and closed state is formed by this, and this space continuously faces the outer bottom surface and outer surface of the pot 7. 10 is a sheath heater bent into a substantially S-shape;
An insulator 11' is supported at a predetermined distance from the pot 7 in the space 9 by a presser 29 whose end portions and intermediate portions are fixed to the inner bottom of the inner case 2, and the terminal portions 12 at both ends are They are arranged in a positional relationship facing each other with respect to the center of the inner bottom of the inner case 2, and extend downward through the bottom of the inner case 2.

A thermostat 13 is installed in the inner bottom of the inner case 2, and is installed in one heater space of the S-shaped heater 0.

14 is an inner case 2 so as to cover the thermostat 13.
A heat shield plate placed below the bottom insulation material 15 on the top surface of the heat shield plate.
is held.

Reference numeral 16 denotes an outer lid which is rotatably supported by a hinge part 17 at the upper end of the outer case, and has a handle part 1 for carrying on the upper surface.
It has 8.

Reference numeral 19 denotes an inner cover, which is fixed to the inner surface of the outer cover 16 via a cover heat insulating material 20.

A holder 21 is located on the opposite side of the hinge member 17 and is fixed to the upper end of the outer case, and when the outer cover 16 is closed, it engages with a latch 22 provided on the handle 18 to close the outer cover 16. It holds an engaging portion 23 that is held in this state.

24 is a push button for releasing the engagement between the latch 22 and the engaging portion 23;
Reference numeral 25 denotes a heat radiation plate attached to the lower surface of the inner cover 19, and a heat-retaining heater 26 is disposed on the upper surface thereof.

27 is an inner lid that closes the upper opening of the pot 7; 28 is an outer lid 1;
A steam vent provided at 6 passes through the inner cover 19 and the inner lid 27 and is conveyed into the pot 7.

Next, the operation of this embodiment having the above configuration will be explained.

Washed rice and the required amount of water are put into the pot 7, the pot 7 is stored in the inner case 2, and the outer lid 16 is closed. When the heater 01 is energized in this state, the air in the space 9 is heated, and the pot 7 is heated by the heated air and the heat radiated from the vehicle from the heater 0, and rice is cooked. When all of the water in the pot 7 is absorbed by the rice, the outer bottom of the pot 7 becomes dry and the temperature rises rapidly.The thermostat 13 detects this temperature and activates. Then, the power supply to the heater 10 is cut off, and the power supply is switched to the heat retention heater 26. Although not shown, a heat-retaining heater is also provided at the upper part of the outer peripheral surface of the inner case 2 to keep the pot 7 warm from almost the entire surface. In the above operation, in this embodiment, the space 9 is formed so as to continuously face the outer bottom surface and the outer surface of the pot 7, and the heater 0 is placed in the space 9 with a predetermined distance from the pot 7. At the same time, the terminals 1 at both ends of this heater are installed.
2 is bent and arranged so that it is positioned opposite to the center of the outer bottom surface of the pot 7, so the low calorific value part is divided into two parts, and the radiation heat to the pot 7 is more uniform. This allows you to cook rice with even heating.

As explained above, the present invention not only allows rice to be cooked evenly, but also has the advantage of reducing the negative effects of the low heat generation part of the heater terminal, allowing for more uniform cooking, and greatly improving the taste of the cooked rice. We can provide you with a rice cooker that can be improved.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the rice cooker according to the present invention with main parts cut away, and FIG. 2 is a top view of the inner case with the outer pot removed. In the figure, 7 is a pot, 9 is a space, 1 is a heater, and 12 is a space. 1. Figure 2

Claims (1)

[Claims] 1. A sheathed heater with a low heat generation end is used, a heating space is formed around the outside of the pot, and the heater is disposed within the space at a predetermined distance from the pot. 1. A rice cooker characterized in that the heater is bent into a substantially S-shape so that terminal portions at both ends of the heater are positioned opposite to a central portion of the outer bottom surface of the pot.