JPS5818813Y2 - Cooking device - Google Patents

Description

[Detailed description of the invention] This invention relates to a cooker that can selectively perform rice cooking and boiling other than rice cooking. In addition to keeping things warm, the heat keeping circuit is also used to keep things warm after cooking.

Hereinafter, a pressure cooker which is an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a main body equipped with a pair of handles 2, 2 and an operation panel part 3 on the outer peripheral side surface; 4 is a hot plate with a main heater 5 embedded therein and placed on the inner bottom surface of the main body 1; 6 is a center of the hot plate 4. This is an automatic switch consisting of a thermally responsive mechanism 7 which is inserted through the switch, a switch lever 8 which is connected to the mechanism 7 and has one end exposed to the operation panel section 3, and a contact mechanism 9 which communicates with the lever 8 to open and close.

As is well known, when the contact mechanism 9 of this automatic switch 6 is closed by pressing the switch lever 8, the thermal response mechanism 7 maintains this state, and when the temperature of the pan, which will be described later, rises rapidly, the thermal response mechanism 7 operates and the contact mechanism 9 closes. This opens the mechanism 9 and is used for cooking rice.

10 is an auxiliary heater disposed at the bottom of the hot plate 4; 11 is a pot that is removably inserted into the main body 1 and placed on the hot plate 4 with its bottom surface in contact with the thermal response mechanism 7; 12 is a pot; A lid that airtightly closes the upper opening of the pot 11 via a gasket 13;
4 is a pressure regulating valve provided on the lid 12 and opens when the pressure inside the pot 11 becomes a little higher than the normal operating pressure to keep the internal pressure at the normal operating pressure; 15 is a pressure regulating valve provided on the lid 12; This is a safety valve that opens when the internal pressure abnormally increases due to the inoperability of the valve 14 to prevent an explosion.

16 is a pressurizing mechanism that pressurizes the lid 12 by a pressurizing operation to maintain the closed state by the lid 12, and allows the lid 12 to be opened by a pressurizing operation, and a pressurizing mechanism is provided between the main body 1 and the lid 12. It is provided.

The pressure mechanism 16 is fixed to the outer peripheral surface of the main body 1, and is supported by a pair of locking metal fittings 17, 17 that protrude upward and face each other, and a screw mechanism 18 in the center of the lid 12. The pressurizing arm 19 has both ends engaged with and disengaged from the locking fittings 17 and 17 by rotation about the screw mechanism 18.

The screw mechanism 18 is configured to operate to move the pressurizing arm 19 and the lid 12 toward or away from each other by rotating the eldest child 18'.

That is, when the locking metal fitting 17.17 and the pressure arm 19 are in a locked state, when the screw mechanism 18 is operated to separate the pressure arm 19 and the lid 12, the pressure arm 19 is moved by the locking metal fitting 17.17. Since lifting is prevented, the lid 12
is pressurized, the upper opening of the pot 11 is closed airtight via the gasket 13, and the pressurizing arm 19 is closed by the tightening mechanism 18.
When the lid 12 is operated to approach the lid 12, the pressure on the lid 12 is released.

A stopper 20 prevents the pressure arm 19 from rotating as the screw mechanism 18 is operated.

Reference numeral 21 denotes a heat-sensitive part of a boiling temperature control circuit installed on the side surface of the main body 1 to sense the side temperature of the pot 11, and includes heat-sensitive control elements having different operating temperatures, such as a return type thermostat 22.
and a return type thermostat 23 whose operating temperature is higher than this.

Therefore, the temperature control circuit for boiling is controlled by the thermostat 22.
and a series circuit of the auxiliary heater 10 and the thermostat 23 in parallel.

A time switch 24 is provided on the operation panel 3 and is connected in series to the temperature control circuit for boiling.

Reference numeral 25 denotes a heat-retaining heater disposed between the hot plate 4 and the auxiliary heater 10, and is connected in series with a heat-sensitive control element for heat-retaining, such as a return type thermostat 26, to form a heat-retaining circuit.

This thermostat 26 is arranged in the heat sensitive section 21 of the boiling temperature control circuit, and its operating temperature is set to a temperature suitable for keeping warm.

The electric circuit is connected as shown in FIG. 3, and the changeover switch 27 has two changeover pieces a and l).

This one switching piece a has a rice cooking circuit consisting of a main heater 5 and an automatic switch 6, a main heater 5, a boiling temperature control circuit,
The cooking circuit consisting of the time switch 24 is switched over, and the other switch piece 24 is connected to the automatic switch 6 or the time switch 24 by inserting and connecting the warming circuit in parallel with the switch piece a.

Next, its effect will be explained.

First, when cooking rice, the changeover switch 27 is changed over to energize the main heater 5 via the automatic switch 6.

Then, the main heater 5 continues to be energized by the automatic switch 6 to perform heating cooking, and when the rice cooking is completed, the automatic switch 6 that senses this is opened, and the rice cooking ends.

Pressure adjustment during this rice cooking is performed by the pressure cooking valve 14.

When rice cooking is completed by opening the automatic switch 6, power is supplied to the series circuit of the main heater 5, thermostat 26, and heat-retaining heater 25 to automatically shift to a heat-retaining operation.

This heat-retaining operation is performed using the main heater 5 and the heat-retaining heater 25 as heat sources and by controlling the temperature by a thermostat 26.

On the other hand, when performing boiling cooking other than rice cooking, the time switch 24 is set to a desired cooking time, the changeover switch 27 is switched, and the main heater 5 is energized via the time switch 24 and the boiling temperature control circuit.

Then, since both thermostats 22 and 23 are closed at the beginning of cooking, the pot 11 is heated by the main heater 5 of the hot plate 4, and when the temperature of the iron pot 11 reaches the predetermined cooking temperature, the thermostat 22 is closed. A main heater 5 and an auxiliary heater 10 are connected in series to a power source, and the amount of heat generated by the main heater 5 and auxiliary heater 10 is smaller than the amount of heat generated by the main heater 5, and the temperature of the pot 11 is controlled to a predetermined cooking temperature. be done.

Also, if the temperature of the pot 11 becomes higher than the predetermined cooking temperature due to ambient temperature, voltage fluctuations, overheating of the hot plate 4 by the main heater 5, etc., the thermostat 23, which has a slightly higher operating temperature, sends the temperature to the main heater 5 and the auxiliary heater 10. energization is controlled,
The temperature of the pot 11 will be maintained at a predetermined cooking temperature.

By controlling the temperature as described above, cooking is performed in an airtight state, and the cooking ends when the time set by the time switch 24 elapses.

The above cooking temperature is determined by the internal pressure of the pot 11 being controlled by the pressure regulating valve 14.
The temperature is set so that it does not reach the operating pressure of

If this cooking temperature is set, the pressure control valve 14
Since the lid does not open, the aroma of the food is not released to the outside, allowing cooking to take advantage of the aroma of the food.

When the cooking is completed by opening the time switch 24 after the set time has elapsed, the circuits are energized from the main heater 5, the temperature control circuit for boiling, the thermostat 26, and the heat retention heater 25 to automatically shift to the heat retention operation. .

This heat-retaining operation is performed by using the main heater 5 and the heat-retaining heater 25 as heat sources and controlling the temperature by the thermostat 26.

According to the present invention having the above-mentioned configuration, it is possible to automatically shift to the warming operation to keep the food warm after the completion of either rice cooking or boiling, and furthermore, the warming circuit is connected to both sides. It can also be used to keep warm during cooking, and can provide a practical cooking device with an extremely simple configuration.

[Brief explanation of drawings]

FIG. 1 is a front view of the cooking device according to the present invention, FIG. 2 is a sectional side view of the cooking device, and FIG. 3 is an electric circuit diagram of the pressure cooking device. 5: Main motor, 6: Automatic switch, 24: Time switch, 25: Heater for heat retention, 26: Resetting type thermostat (thermal control element), 27: Selector switch.

Claims (1)

[Scope of utility model registration request] In a device that selectively performs rice cooking and simmering cooking by switching between a rice cooking circuit including a non-resettable automatic switch and a boiling circuit other than rice cooking including a time switch,
It is equipped with a heat-retaining circuit including a heat-retaining heater and a heat-sensitive control element, and the heat-retaining circuit is connected so that the heat-retaining operation is started by opening an automatic switch or a time switch when cooking rice or boiling. A cooking device characterized by: