JPH08112196A - Pressure and heat application cooker - Google Patents

Abstract

PURPOSE: To provide a cooker which is absolutely safe and reliable in use under high pressure and reduces electricity consumption by automatic control, has both functions for controlling pressure and temperature and therefore improves the cooking quality, consumes less electricity, and needs less cooking time. CONSTITUTION: The cooker comprises an inner pot 5 having an opening, a heating plate 11 fixed under the bottom of the inner pot 5, an outer pot 6 with the bottom thereof constituted by a corrugated plate 6a for housing the inner pot 5 via the heating plate 11, a lid 1 rigidly connected to the outer pot 6, an L-shaped sealing member 2 for sealing the lid with the opening of the inner pot 5, a force control switch 8 and a multi-function valve 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power-saving type pressure heating cooker capable of performing cooking methods such as steaming, simmering, roasting, reed, roast, and smoking. Because of this, homes, restaurants,
It is possible to cook various foods offered at hotels.

[0002]

2. Description of the Related Art Conventionally, an automatic rice cooker, which is a kind of a heating cooker, controls a cooking temperature by the following method. This method heats the magnetic material to the Curie temperature,
This is done by losing magnetism. A pressure cooker for everyday use, which is a type of pressure cooker, controls only the pressure.

[0003]

However, since the conventional automatic rice cooker controls the cooking temperature by heating to the Curie temperature of the magnetic material, the cooking time is lengthened. For this reason, the power consumption required for the automatic rice cooker increases. Further, since the control of the cooking temperature is performed by heating to the Curie temperature of the magnetic material, the quality of the cooking has deteriorated.

On the other hand, a pressure cooker for everyday use can only adjust pressure, but cannot adjust pressure and temperature. Also, the safety when using high pressure was poor. Therefore, the present invention has been made in view of the above problems, and has a kind of absolute safety and reliability when using high pressure, has a power saving function that is automatically controlled, and has a function of controlling pressure. The object of the present invention is to provide a pressurized cooking device having a function of controlling cooking and temperature, shortening cooking time, reducing power consumption, and improving cooking quality. I do.

[0005]

Means for Solving the Problems The above-mentioned problems are solved by the following constitutions of the present invention. The invention according to claim 1 includes an inner pot having an opening, a heater fixed to the bottom of the inner pot, and an outer pot containing the inner pot through the heater and having a bottom portion formed of an elastic member. A pressure cooker comprising: a pot lid rigidly connected to the outer pot; and a sealing member for sealing the pot lid to the opening of the inner pot.

Further, the invention according to claim 2 is characterized in that a control means for controlling the heat generation state of the heater is provided when an increase in the pressure in the inner pan due to the heat generation of the heater reaches a set pressure value. It is a pressure heating cooker characterized by the following. A third aspect of the present invention is a pressurized heating cooker wherein a valve for automatically switching between boiling cooking and non-boiling cooking is provided in the pan lid in the inner pan. .

[0007]

As described above, the pressure cooker according to the first aspect of the present invention heats the inside of the inner pot when the heater is heated while the pot lid is rigidly connected to the outer pot. The temperature and pressure in the inner pot increase. The pressure to push down the bottom of the inner pot is
It reaches the bottom of the outer pot through the heater. In response to this force, the elastic member at the bottom is displaced, and the inner pot is gradually pushed down. When the amount of displacement of the elastic member reaches a predetermined value, the sealed state between the opening of the inner pot and the pot lid is lost. As a result, the high-pressure air in the inner pot is automatically released.

[0008] Therefore, even in an emergency situation where the abnormal heat generation of the heater cannot be stopped, the high-pressure air in the inner pot is automatically released, which improves the safety when using a high pressure and is a kind of absolute Safety and reliability can be realized.
The strength of the material required for the pressure heating container can be extremely reduced, and the consumption of the material is small. In addition, claim 2
The pressurized heating cooker according to the invention has control means for controlling the heat generation state of the heater when the pressure increase in the inner pot due to the heat generation of the heater reaches the set pressure value. Has a power saving function of automatically controlling the pressure, and can have both a function of controlling pressure and a function of controlling temperature.

Further, in the pressure cooker according to the third aspect of the present invention, a valve for automatically switching between cooking in a boiling state and cooking in a non-boiling state is provided in a pot lid in the inner pan. There is no need to manually switch between the boiling state and the non-boiling state, so that the time for manual switching can be saved, the cooking time can be shortened, the power consumption of the heater can be reduced, and the quality of cooking can be improved.

[0010]

1 is a longitudinal sectional view showing the structure of a pressure cooker (hereinafter referred to as a pot) according to an embodiment of the present invention.
This pot comprises a pot lid 1 and a rectangular sealing member 2 serving as a sealing member.
A multi-function valve 3, a handle 4, an inner pan 5, an outer pan 6, an outer shell 7, a force control switch 8 serving as control means,
It comprises a base 9, a limiting heater 10, a heating plate 11 serving as a heater, an incubator 12, and the like.

The inner lid 5 can be placed on the heating plate 11. The heating plate 11 is fixed to the bottom of the outer pan 6. The bottom of the outer pan 6 is an elastic ripple plate 6a having a plurality of annular grooves and serving as an elastic member. Below the elastic wave plate 6a, there are provided a limiting heater 10 for preventing the temperature of the heating heater 11 from being raised above a predetermined temperature, and a constant temperature heater 12 for keeping the temperature of the heating heater 11 constant.
Below the heat generating plate 11, one end of a propelling lever 8f of one force control switch 8 is fixedly installed.

The other end of the propulsion lever 8f is connected to a transmission lever 8e of the force control switch 8, as shown in FIG. The transmission lever 8e is connected to the elastic piece 8d. The elastic piece 8d is fixed to the outer side wall of the outer pot 6. The elastic piece 8d is connected to the columnar magnetic body 8c. The columnar magnetic body 8c is connected to the active terminal 8b. A part of the force control switch 8 is fixed to the outer side wall of the outer pot 6. The push button 8a is a force control switch 8.
The distance between the active terminal 8b and the tip is variable by being fixed to a part of the above and rotating.

The pot lid 1 can be rigidly connected to the opening of the outer pot 6. Pot 1 and outer pan 6, together with inner pan 5,
A container that can be dynamically sealed is formed via the rectangular sealing member 2. The rectangular sealing member 2 has a cross section of> shape and <shape, and is made of a nontoxic rubber member. One multi-function valve 3 is provided on the pot lid 1. Multifunctional valve 3
As shown in FIG. 2, is composed of a valve cap 3b, a valve mantle 3c, a valve core 3e, a valve seat 3f, communication ports 3a and 3h, O-ring shaped sealing members 3d and 3g, and the like. The valve cap 3b can rotate from the top to the bottom of FIG.

As shown in FIG. 4, the force control switch 11
(K1), the limiting temperature controller 10 (K2), and the timer K3 are connected in series, and these are connected in parallel with the constant temperature controller 12 (K4).
Are connected in series, and for example, a power supply of 220 V is supplied. Next, how to use the present pot will be described.

When the pan lid 1 is rigidly connected to the opening of the outer pan 6, the pan lid 1 and the opening of the inner pan 5 are dynamically sealed via the rectangular sealing member 2. Therefore, the heating plate 11
Is heated, the temperature and pressure in the inner pan 5 gradually rise. As shown in FIG. 1, the pressure in the inner pot 5 is F1, F.
2, F3 and F4. The component force of F3 and F4 pushes the side wall of the inner pot 5, but since the mechanical strength of the inner pot 5 is high, the side wall of the inner pot 5 is not displaced.

At this time, the pot lid 1 exhibits dynamic sealing with the opening of the inner pot 5 through the rectangular sealing member 2 and is rigidly connected to the upper opening of the outer pot 6. When the temperature and the pressure in the inner pot 5 gradually rise, the component force F1 of the pressure in the inner pot 5 is pushing the pot lid 1. The component force F2 pushes the bottom of the inner pot 5. In addition, the component force F2 is transmitted to the elastic ripple plate 6a at the bottom of the outer pan 6 via the heating plate 11.

Since the pot lid 1 is rigidly connected to the opening of the outer pot 6, the pot lid 1 cannot move upward. Therefore, the inner lid 5 displaces the elastic ripple plate 6a of the outer pot 6 downward via the heat generating plate 11. At this time, if the power control switch 8 is out of order, the power for the pan heater cannot be turned off. For this reason, the pressure in the inner pan 5 will exceed the specified value. The amount of downward displacement of the elastic ripple plate 6a reaches a certain set value.

At this time, the inner pot 5 is pushed down, and the rectangular sealing member 2 cannot maintain the sealed state between the pot lid 1 and the inner pot 5. Therefore, a gap is formed between the pot lid 1 and the inner pot 5. As a result, high-pressure air in the inner pan 5 is released, and the pressure in the inner pan 5 decreases until the pressure becomes atmospheric pressure. In this way, even if the abnormal heat generation of the heat generating plate 11 cannot be stopped, the air in the inner pot 5 can be discharged, and absolute safety and reliability during high pressure use can be guaranteed. For this reason, the strength can be extremely reduced with respect to the strength requirement of the pot material, and the consumption of the pot material is small.

Next, when cooking inconvenient food (eg, milk) in such a pan under high temperature and high pressure, first, the valve cap 3b of the multifunctional valve 3 is placed at the bottom. Rotate to become. As a result, the sealing member 3d seals the exhaust port of the valve seat 3f. Therefore, at normal temperature, the pan is in a completely sealed state. When the power of the pot is turned on and the heating plate 11 is heated, the temperature in the inner pot 5 gradually increases. At this time,
The air in the inner pan 5 expands. The pressure in the inner pot 5 also gradually increases.

Due to thermodynamics, the temperature and the pressure in the inner pot 5 have a relationship of a certain curve function. The downward displacement of the elastic ripple plate 6a is directly proportional to the pressure in the inner pot 5.
Therefore, when the pressure or the displacement reaches a certain set value, the propulsion lever 8f of the force control switch 8 displaces the active terminal 8b of the force control switch 8. As a result, when the activity terminal 8b pushes the tip of the push button 8a, the power of the pan is turned off, and the heating by the heating plate 11 is stopped.

Therefore, the activity terminal 8b and the push button 8
The active terminal 8b is adjusted by adjusting the gap between
It is possible to adjust the temperature in the inner pot 5 corresponding to the displacement amount of Therefore, the best cooking temperature of the food can be selected, and the quality of cooking can be improved. In addition, in this method, when cooking food that is easy to overflow (soup, porridge, milk, etc.), it is possible to cook at an optimal temperature in a sealed state, and there is no possibility of overflowing, thereby improving the quality of cooking. it can.

Next, when the necessary high temperature and high pressure food (eg, rice, meat) is cooked in the main pot, the multifunctional valve 3 is used.
Rotate the valve cap 3b of No.3 to the top. When the power of the pot is turned on and the temperature in the inner pot 5 reaches 100 degrees, a large amount of steam is generated in the inner pot 5. At this time, the communication port 3a
Through which steam is discharged. When this discharge amount reaches a certain value, the valve core 3e of the multi-function valve 3 jumps to automatically keep the discharge port of the valve seat 3f closed.

As a result, the inside of the inner pot 5 is completely sealed.
Therefore, it is possible to automatically switch between boiling and non-boiling cooking. As the heating is continued, the temperature and the pressure in the inner pot 5 rise linearly. When the temperature or pressure value reaches the set value, the propulsion lever 8f of the force control switch 8 displaces the active terminal 8b to turn off the pot.

Therefore, the temperature and pressure inside the inner pot 5 are automatically controlled. Therefore, cooking time is short and power is also saved. For example, when cooking rice, it is possible to save 50% of electricity compared with the conventional method. If the cooked food is not eaten temporarily, the inner pot 5 will be under negative pressure,
A freshening function will be realized. For this reason, the nutrient preservation rate of the food can be increased.

As described above, according to the present pot, the trouble of manually switching between boiling and non-boiling cooking is eliminated, and power saving, pressure and temperature are continuously adjusted, and steaming, boiling, roasting, and steaming are performed. , Explode,
It can be used for cooking methods such as branding, has many cooking functions, high degree of automation, short cooking time, average power saving of 50%, good cooking effect, so that when cooking, soups and porridges do not overflow. In addition, since it has a negative pressure freshening function, the nutrient preservation rate is high, and the use of high pressure is absolutely safe.

[0026]

As described above, according to the invention of claim 1,
Since the bottom of the outer pan is made of an elastic material and a sealing member is provided to seal the opening of the inner pan and the pan lid, high-pressure air in the inner pan is automatically discharged even in an emergency in which abnormal heating of the heater cannot be stopped. Release, improve safety when using high pressure, and realize a kind of absolute safety and reliability. The strength of the material required for the pressure heating container can be extremely reduced, and the consumption of the material is small.

According to the second aspect of the present invention, since the control means is provided, it has a power saving function of automatically controlling the heating state of the heater, and has a function of controlling pressure and a function of controlling temperature. Can be additionally provided. Further, according to the invention of claim 3, since the valve is provided on the pot lid, there is no need to manually switch between the boiling state and the non-boiling state, and the time for manual switching is saved, the cooking time is shortened, and the heater is It is possible to reduce the power consumption required for and improve the quality of cooking.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing the structure of a pressure heating cooker according to one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing the structure of the multifunctional valve of FIG.

FIG. 3 is a diagram showing a structure of a force control switch of FIG. 1;

FIG. 4 is an electric circuit diagram of a main part of the pot of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pot lid 2 Rectangular sealing member 3 Multifunctional valve 4 Handle 5 Inner pan 6 Outer pan 6a Elastic ripple board 7 Outer shell 8 Force control switch 9 Base 10 Limit heater 11 Heating plate 12 Incubator K1 Force control switch K2 Limit temperature K3 Timer K4 Incubator R Heater B Fuse

Claims (3)

[Claims] 1. An inner pot having an opening, a heater fixed to the bottom of the inner pot, an outer pot containing the inner pot through the heater and a bottom made of an elastic member, and an outer pot. A pressure cooker comprising a pan lid rigidly connected to the pan and a sealing member for sealing the pan lid with the opening of the inner pan. 2. The control means for controlling the heat generation state of the heater when the pressure rise in the inner pot due to heat generation of the heater reaches a set pressure value. Pressure cooker. 3. A pressure cooker according to claim 1, wherein a valve for automatically switching between boiling cooking and non-boiling cooking is provided in the pan lid in the inner pan. vessel.