JPH01297015A - Heating cooker - Google Patents

Abstract

PURPOSE:To execute a satisfactory warming without lowering a rice temperature by using plural kettles, providing a rice cooking exclusive-use for a rice cooking and a warming device exclusive-use for a warming to one main body, starting the heating of the warming device at the same time as a rice cooking start, and sufficiently residual heating it up to a rice boiling completion time. CONSTITUTION:Prescribed rice and water are put in an inner kettle 6, it is housed in a first inner container 2, a rice cooking switch is operated, then, current flowings to a first heating heater 4 and a second heating heater 5 are executed, and a rice cooking lamp and a warming lamp are lighted up. When the rice cooking is completed, a temperature detector 8 detects a rice cooking completion temperature, and a current flowing circuit to the first heating heater 4 is opened in interlocking. However, the current flowing to the second heating heater 5 is connected, and even the warming lamp is continuously lighted up. By the signal of a temperature sensor 9, the second heating heater 5 is repeatedly turned on and off, and a prescribed fixed temperature is maintained. After the rice cooking is completed, the rice is shifted to a warming device 22, the warming is executed, and when inner kettles 6 and 7 are made into the same shape, the whole inner kettles can be re-inserted, and the warming can be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heating cooker that uses a plurality of inner pots and has a rice cooker dedicated to cooking rice and a heat retention device dedicated to heat retention in one main body.

Conventional technology Conventionally, as appliances for cooking rice and keeping it warm, there have been devices such as electric rice cookers or gas cookers that cook rice and then transfer it to an electronic jar to keep it warm, or electronic jar rice cookers that automatically switch to keep warm after cooking. be.

Moreover, as a heating cooker using two inner pots in one main body, one main body has a first inner pot and a second inner pot, and the first inner pot has a first inner pot and a second inner pot.
A first heater is provided so as to be in contact with the bottom of the inner pot, and a second heater is provided so as to be in contact with the bottom of the inner pot.
A second heater is provided so as to form a space between the first and second inner pots, and one of the first and second inner pots is housed in the other so that a heating method according to preference can be selected. Cook rice using the No. 1 inner pot and the No. 1 heater, and after the rice cooking is completed, the No. 1
It controls the energization of the heater to keep it warm like an electronic jar rice cooker. If you want to keep the rice warm for a longer period of time, cool the rice in the first inner pot, then store it in the second inner pot together with the first inner pot. There are things that can be heated and kept warm.

(For example, Japanese Unexamined Patent Publication No. 61-253018) Problems to be Solved by the Invention When using the electric kettle or gas kettle and the electronic jar, two appliances must be prepared, and a large installation area is required. In addition, electronic jar-type rice cookers can cook rice well using microcomputer control, etc., but their heat retention performance is limited by the heat dissipation from the heater in contact with the bottom of the pot and the floating hole of the temperature detection device, and by the steam venting from the outer lid. Due to heat dissipation from the holes, there were problems such as the surface becoming dry or sticky when kept warm for a long time. In addition, in the case of using two inner pots in one main body, it is troublesome to have to cool the rice once and then use the two inner pots to keep it warm. There was a problem that it was inconvenient.

Means for Solving the Problems The present invention has been made to solve the above problems, and includes two inner containers, a first and a second inner container, arranged side by side in one main body,
a first inner container, a first heater provided on the inner bottom thereof, an inner pot placed in contact with the heater, a temperature detection device that detects the temperature in contact with the lower surface of the inner pot, and the first heater. A rice cooking device configured with a rice cooking switch that energizes a heater and shuts off the energization based on a predetermined temperature detection output of the temperature detection device.

A second inner container, a second heater wrapped around its outer peripheral wall, a temperature sensor arranged at any position on the outer peripheral wall to control the heat retention temperature, and a temperature sensor installed around the entire circumference and bottom of the second inner container. A heat insulating device is provided, which includes a heat insulating material and an inner pot housed in a second inner container, and the rice cooking switch closes the electricity circuit to the first heater and simultaneously turns the electricity to the second heater. It is designed to close a current-carrying circuit.

Function: By having the structure as described above, the inner container, the heater provided on the inner bottom of the inner container, the inner pot placed in contact with the heater, the temperature detection device that detects the temperature in contact with the lower surface of the inner pot, and the heating A rice cooking device constructed without using a heat insulator or the like by energizing the heater and cutting off the energization according to a predetermined temperature detection output of the temperature detection device has a small heat capacity and has the effect of reducing power consumption. In addition, there is a heater wrapped around the inner container and its outer peripheral wall, a temperature sensor placed at any position on the outer peripheral wall to control the insulating temperature, a heat insulating material placed around the entire circumference and bottom of the inner container, and a heater wrapped around the outer peripheral wall of the inner container. The heat-retaining device, which consists of a stored inner pot, does not require a steam vent in the lid and prevents the surface of the rice from becoming dry or sticky when kept warm for a long time. At the same time, the rice cooking switch that closes the energizing circuit to the second heater has the effect of generating sufficient residual heat by the time the rice is cooked, and the rice cooking device and warming device installed side by side in one main unit make the appliance more compact. Now you can prepare the next meal while keeping the cooked rice warm.

Example An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of a cooking device according to an embodiment of the present invention, FIG. 2 is a circuit diagram thereof, and FIG. 3 is a diagram showing its operating characteristics.

In FIG. 1, a main body ring 1 has an outer frame 12 fitted to its outer periphery, and a first inner container 2 and a second inner container 3 are attached to its inner periphery. First inner container 2
is provided with a first heater 4 on its inner bottom, an inner pot 6 is placed in contact with the first heater 4, and an elastic plate is placed in contact with the bottom of the inner pot 6 and is more elastic than the center hole of the first heater 4. The rice cooking device 21 includes a temperature detecting device 8 that rises and falls. - The inner container 3 of the power cylinder 2 has a second heater 5 on its outer periphery and a temperature sensor 9 at an arbitrary position on the outer periphery, is covered with a heat insulating material 20 on the entire circumference and the bottom, and has an inner pot inside. 7 is housed to form a heat retaining device 22. The upper openings of the rice cooking device 21 and the heat retention device 22 are respectively closed by the outer MIO and 11, and the outer lid 10 for rice cooking is provided with a steam vent hole, but the outer lid 11 for heat retention is provided with a steam vent hole. There is no. Attach the bottom 13 to the bottom of the outer frame 12 to cover the bottom of the main body.
A cord reel 14 is attached to a recess at the center of the bottom 13, and an outer frame 12 is sandwiched between the main body ring 1 and the bottom 13 and screwed together to form a main body.

In FIG. 2, a rice cooker 21 and a heat-retaining device 22 are connected in parallel, and I9 is a power source, and 15 is mechanically interlocked with a temperature detection device 8 to open and close the energizing circuit to the first heater 4. The rice cooking switch 17 closes the energizing circuit to the heater 5, and the rice cooking switch 15 closes the rice cooking circuit.
A rice cooking lamp turns on when input is I' L +i11 and turns off when input, and 9 is a temperature sensor that opens and closes the energizing circuit of the second heater 5 at a predetermined temperature.

Reference numeral 16 denotes a power switch for opening and closing the warming device circuit, and reference numeral 18 denotes a heat-retaining lamp that is turned on when the rice cooking switch 15 closes the heat-retaining circuit and the power switch 16 is closed, and is turned off when the circuit is open.

Next, the operation of this embodiment having the above configuration will be explained. (Refer to Fig. 3) Put the specified amount of rice and water into the inner pot 6 and store it in the first inner container 2.
When the power switch 16 is closed and the rice cooking switch 15 is operated, the first heater 4 and the second heater 5 are turned off.
The rice cooking lamp 17 and the warming lamp 18 are turned on. When the rice cooking is completed, the temperature detection device 8 detects the rice cooking completion temperature, and in conjunction with this, the rice cooking switch 15 is reversed, a current supply circuit to the first heater 4 is opened, and the rice cooking lamp 17 is turned off. However, the power supply to the second heater 5 is connected, and the heat retention lamp 18 also continues to be lit. When the temperature sensor 9 is heated by the second heater 5 and rises to a predetermined OFF temperature, the power supply to the second heater 5 is stopped, and when the temperature falls to the ON temperature of the temperature sensor 9, the second temperature rises again. The heater 5 is energized. Like this 0N-O
FF is repeated to maintain a predetermined constant temperature and keep it warm.At the same time as rice cooking starts in the rice cooker 21 as above 0, the heat keeping device 22
By starting energization, the warming device 22 can be sufficiently preheated, so that after rice cooking is completed, the rice can be transferred to the warming device 22 to keep it warm, and at this time, a drop in rice temperature can be prevented. Furthermore, if the inner pots 6 and 7 have the same shape, it becomes possible to replace the inner pots with each other to keep them warm.

Effects of the Invention As described above, according to the present invention, the rice cooking device exclusively for cooking rice and the warming device exclusively for keeping warm are efficient and have an energy saving effect.
It can be made more compact than using two jar-type rice cookers. In addition, the heat retention device does not require a steam vent hole for cooking rice, which is provided in the lid of a jar-type rice cooker, etc., and there are no parts that come into contact with the inner pot and radiate heat, such as a heater for rice cooking, so the heat retention performance is significantly improved. do. In addition, since the heating of the warming device is started at the same time as the rice cooking starts, a sufficient residual heat effect can be obtained by the time the rice cooking is completed, and even when the rice is transferred to the warming device, the rice temperature does not drop and good heat retention can be achieved. Even in households where there are many families with different mealtimes, the device can be used to keep food warm for late meals, and the rice cooker can be used to prepare rice for the next morning, making it much easier to use.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a heating cooker showing an embodiment of the present invention;
FIG. 2 is its circuit diagram, and FIG. 3 is its operating characteristic diagram. 2... First inner container, 3... Second inner container, 4
...first heater, 5...second heater,
6...First inner pot, 7...Second inner pot, 8.
...Temperature detection device, 9...Temperature sensor. 15...Rice cooking switch, 2o...Heat insulation material, 21
...Rice cooking device, 22...Heating device.

Claims (1)

[Claims] Two inner containers, a first and a second, are arranged in parallel in one main body,
The first inner container (2), the first heater (4) provided on the inner bottom, the inner pot (6) placed in contact with the heater (4), and the lower surface of the inner pot (6). Consisting of a temperature detection device (8) that contacts the rice cooker and detects the temperature, and a rice cooking switch (15) that energizes the first heater (4) and cuts off the energization based on a predetermined temperature detection output of the temperature detection device (8). a rice cooker (21), a second inner container (3), a second heater (5) wrapped around its outer peripheral wall, and a temperature sensor arranged at an arbitrary position on the outer peripheral wall to control the heat retention temperature. (9), a heat insulating material (20) placed around the entire circumference and bottom of the second inner container (3), and an inner pot (7) housed in the second inner container (3).
A heat retaining device (22) consisting of the above is provided, and the rice cooking switch (15) closes the energizing circuit to the first heater (4) and at the same time closes the energizing circuit to the second heater (5). A heating cooker characterized by being closed.