JPS6053111A - Pressure controller of cooking utensil - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a pressure regulating device for cooking utensils used in general households.

Structure of conventional example and its problems Conventionally, in this type of pressure regulating device, as shown in FIG. , an intermediate plate 4. In the pressure regulating device 2, a valve seat 6 is fitted into a steam port 5 provided on a middle plate 4, and a case 7 is fixed to the upper plate 3, and this case 7 is pressed into contact with the upper part of the valve seat 6. This forms a steam flow path. Further, a pressure regulating valve 8 is slidably supported within the case 7 so as to seal the steam port 5. In this configuration, when steam is generated during cooking and the internal pressure of the cooker increases, the pressure regulating valve 8 rises, the steam port 5 is opened, and the steam is discharged. Then, when the internal pressure becomes low, the pressure regulating valve 8 is lowered and the steam port 5 is sealed, and the internal pressure starts to rise rapidly. By repeating this operation, the internal pressure is kept constant.

However, this configuration has two problems.

First, the steam generated by cooking is controlled by a pressure regulating valve, so it occurs intermittently. Therefore, when steam is discharged, a large amount of steam is generated instantaneously. For this reason, steam reaches a higher position than in a system that does not use a pressure regulating valve.

In a general household, if steam reaches a high level,
Moisture often adheres to ceilings, roofs, etc. and stains them.

Secondly, the case 7 of the pressure regulating valve 8 allows steam to pass through 3/-
During cooking, the temperature reaches 100°C, and the temperature remains quite high even after the cooking process is complete. Therefore, it was dangerous for the user.

OBJECTS OF THE INVENTION The present invention provides a pressure regulating device for cooking utensils that eliminates the conventional opening problem, improves the ease of mounting the cooking utensils, and enhances safety.

Composition of the Invention Attached to the Pressure Adjustment Device for a Cooking Utensil of the Present Invention - 1 A cooking utensil body, a pot housed in the body, a lid body covering the top opening of the body or the pot, and maintaining the internal pressure of the pot at a constant level. The lid of this pressure adjustment part has a multilayer structure, and the lid of this pressure adjustment part has a structure that adjusts the amount of steam generated and also increases safety. It is.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings showing an embodiment when used in an electronic jar rice cooker.

In FIG. 2, 11 is a cylindrical outer frame, 12 is a cylindrical inner frame formed by drawing a thin metal plate, and 13 is provided inside the outer frame 11.
14 is a rice cooking heater equipped on the inner bottom of the inner frame 12; 14 is a pot removably placed on the rice cooking heater 13; 15 is a lid with a heat-insulating structure; 16 is an inner lid that covers the upper opening of the pot 14; 17
is a lid heater installed inside the lid body 15, and an 18-piece inner frame 12.
A heat-retaining heater 19 wrapped around the outer surface of the pot 14 is a pressure adjusting part that keeps the internal pressure of the pot 14 constant.

Next, this pressure adjustment section 19 will be explained in detail with reference to FIG. 3.

In Fig. 3, 20 is the outer lid, 21 is the middle plate, and 22 is the middle plate 2.
A steam port 23 is fixed to the outer lid 20 and is pressure-welded to the outer periphery of the steam port 22 of the middle plate 21.
4 is attached to the gasket 23, and has an inner lid with a round hole in the center and a steam outlet hole on the outer periphery; 25 has a three-stage diameter of upper, middle, and lower part; the middle part is fitted into the steam port 22; The upper part is inserted into the central round hole of the inner lid 24, and the pressure regulating valve 26 has a steam outlet on the side of the middle part. - The upper cover 2γ is a ring-shaped sealing ring made of an elastic body fitted into the outer surface of the middle part of the pressure regulating valve 26.

2B is a rice cooking switch that starts the rice cooking operation, and 29 is a magnetic thermostat that detects the temperature at the bottom of the pot and completes the rice cooking operation.

To explain the operation in the above configuration, when the rice cooking start switch 2B is operated, the rice cooking heater 13 of the cooker is energized and starts generating heat. The rice placed in the pot 14 is heated by the rice cooking heater 13 and cooking is started. As rice cooking progresses and the temperature inside the pot 14 becomes high, steam is generated and the internal pressure increases.

When the pressure inside the pot 14 reaches the set pressure, the pressure regulating valve 25 rises, and the steam in the pot 14 is discharged to the outside through the steam outlet, thereby lowering the pressure inside the pot 14. Then, the pressure control valve 25 is lowered and the steam port 22 is sealed, so that the pressure inside the pot 14 becomes high again. By repeating this operation, the pressure inside the pot is kept constant. When rice cooking progresses and the steam generated decreases and the temperature at the bottom of the pot rises, magnetic thermostat 2
The rice cooker 9 detects this temperature and turns off the power to the rice cooker heater 13 to complete the rice cooking.

Here, the steam generated during rice cooking is intermittently discharged by the pressure regulating valve 25, but according to the configuration of this embodiment, the steam discharged from the pressure regulating valve 26 is immediately discharged from the inner lid. Take shelter in the space below 24. Thereafter, it passes through the hole on the outer periphery of the upper surface of the inner lid 24, accumulates in the space B formed by the upper lid 26 and the inner lid 24, and is discharged to the outside through the hole on the upper surface of the upper lid 26. At this time, the steam discharged intermittently from the pressure regulating valve 26 is gradually averaged in the process of flowing outside through space B, and when it is discharged outside, it is always at the average level. Emphasis on being discharged.

Further, when the steam discharged from the pressure regulating valve 26 enters the space B from the space man, it is discharged into a space wider than the small hole, so the temperature decreases and the volume of steam decreases. On top of that,
Since the space B protrudes outward from the main body, it is cooled by the outside air and has a low temperature to begin with, and due to this double synergistic effect, the amount of steam released outward from the 71°-ji top cover 26 is reduced.

Therefore, the generated steam does not reach a high place, and when used in a general household, there is no possibility of staining the ceiling or cabinet.

On the other hand, the upper lid 26 protrudes to the outside, and after cooking rice is rapidly cooled by the outside air, the temperature becomes low, and even if the user touches it, there is no risk of burns or the like.

Effects of the Invention As is clear from the above embodiments, the pressure regulating device for cooking utensils of the present invention has a multi-layer structure for the lid of the pressure regulating section, so that when used in a general household, the generated steam can cause the ceiling to leak. It does not stain surfaces, etc., and there is little risk of burns, etc.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a conventional pressure regulating device for cooking utensils;
FIG. 2 is a partial sectional view of a cooking appliance using a pressure regulating device according to an embodiment of the present invention, FIG. 3 is an enlarged sectional view of the same pressure regulating device, and FIG. 4 is a circuit diagram of the same cooking appliance. 14... Pot, 15... Lid, 19...
...Pressure adjustment section.

Claims (1)

[Claims] The cooking utensil has a main body, a pot housed in the main body, a lid body that covers one part of the top opening of the main body or the pot, and a pressure adjustment part that keeps the internal pressure of the steel constant. A pressure adjustment device for cooking utensils, characterized in that the lid has a multilayer structure.