JP2552719Y2 - Microwave oven container - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container used for cooking rice and stewed dishes using a microwave oven.

[0002]

2. Description of the Related Art Since microwave ovens have been controlled using microcomputers, the microwave output can be finely adjusted according to the heating state of the food being cooked, which is useful as a heating cooker. Has increased further. And it has made it possible to finish dishes that have been said to be relatively difficult.

[0003] However, it is known that the shape and size of the container used and the amount of food greatly affect the finish only in the case of cooking rice or stewed dishes. In addition, the influence of food spillage during boiling on control accuracy cannot be ignored.

Various measures have been considered to solve this problem. However, as disclosed in Japanese Utility Model Laid-Open Publication No. 60-163323, the lid is sealed to some extent so as to prevent spillage, and to achieve a desired efficiency. Some have been devised to give a good finish.

[0005]

[Problems to be Solved by the Invention] When controlling the heating of food by detecting the water vapor generated when the food boils and detecting it with a sensor, there is a difference in detection accuracy depending on how the steam is blown out from the container. There was a problem that it would. In addition, even in the case of a container that is likely to be spilled, there has been a problem that the detection of steam cannot be performed well.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention solves the above-mentioned problems by providing a container body for storing food, an outer lid for closing the container body, and a space between the container body and the outer lid. It consists of an inner lid to be installed. In each case, a material having good microwave permeability is used. An inclined surface descending from the peripheral edge toward the center is formed in the inner lid, and an appropriate number of steam passage holes are formed in the inclined surface. Protrusions are provided at an appropriate number of places on the peripheral edge of the inner lid on which the outer lid is placed, and a gap is formed between the outer lid and the lower end of the outer lid placed thereon. Then, the steam is spouted evenly through the gap.

[0007]

The steam generated by the heating passes through a steam passage hole formed in the descending inclined surface of the inner lid, once goes to the center, then turns in the radial direction, and the projection on the peripheral edge of the inner lid and the outside of the outer lid. Jets are evenly ejected from the gap created by the lower edge of the peripheral edge. For this reason, even if the container is rotated by the turntable, a stable amount of steam that does not fluctuate reaches the steam sensor attached to a specific location in the microwave oven.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to the drawings. FIG. 1 is a sectional view of the container of the present invention, and FIG. 2 is a partially cutaway perspective view. In these figures, 1 is a cylindrical container main body, and 2 is an outer lid for closing the container main body. These containers and lids are made of ceramic with excellent microwave permeability, the diameter of the container is 120 mm,
The depth is 100 mm and the height of the lid is 30 mm. Reference numeral 3 denotes a lid fitting portion of the container main body 1, which has a flat portion extending outwardly and an outer peripheral edge rising upward. Reference numeral 4 denotes an inner lid made of heat-resistant plastic for weight reduction. 5 is a descending inclined surface which descends from the periphery of the inner lid toward the center and inclines, 6 is a steam passage hole formed in the descending inclined surface, 7
Is the knob on the inner lid. Further, reference numeral 8 denotes protrusions having a height of 3 mm protruding at five places on the upper surface of the peripheral edge of the inner lid 4. Reference numeral 9 denotes food stored in the container. The arrow 10 indicates the steam generated from the food 9, and when the steam passes through the steam passage holes 6, 6,... Change, the projection 8 around the inner lid,
8 and... Flows out of the container through a gap formed between the outer lid 2 and the lower end of the outer lid 2. In addition,
Since the gap between the outer lid 2 and the inner lid 4 is secured over the entire periphery by the projections 8, 8,...

FIG. 3 shows a state in which the above-mentioned container is set in a microwave oven, 11 is a heating chamber, 12 is a turntable, 13 is a magnetron, 14 is a steam sensor composed of a temperature sensor and a gas sensor, and Reference numeral 15 denotes a control circuit.

Next, the operation of the embodiment configured as described above will be described. Put rice and water for cooking rice in the container body 1. The inner lid 4 and the outer lid 2 are set on this, and set in the heating chamber 11 of the microwave oven. When heating is started, the magnetron 13 starts emitting microwaves and the turntable 12 starts rotating.

When the steam is generated due to the boiling, the steam passes through the steam passage holes 6, 6,... Of the inner lid 4 and concentrates at the center, and then strikes the inner wall surface of the outer lid 2 to radiate. The direction is changed to the gap formed by the protrusions 8, 8,. Then, after the direction is changed again by the rising portion of the lid mating portion 3, the light is dispersed. That is, as described above, the gas is ejected evenly in the radial direction. For this reason, even if the container is rotated by the turntable 12,
A stable amount of steam without fluctuation reaches the steam sensor 14.

When a predetermined amount of steam is detected by the steam sensor 14, the control circuit 15 stops the operation of the magnetron 13 and ends the heating.

[0013] Even if a spill is to occur in this container, the spill that has passed through the vapor passage holes 6, 6, ... of the inner lid 4 is directed to the center of the inner lid along the descending inclined surface 5, and radiated. Because it does not go in the direction, it does not easily spill out of the container.

[0014] As described above, the steam generated by boiling passes through the steam passage hole of the inner lid, once goes to the center, turns radially, and jets out uniformly from the gap between the inner lid and the outer lid. For this reason, even when the container is rotated by the turntable, a stable amount of steam without fluctuation reaches the steam sensor attached to a specific place in the heating chamber of the microwave oven, and the stable steam can always be detected. . Thus, stable and accurate heating control can be realized.

Also, even if a spill is about to occur, the spill that has passed through the steam passage holes 6, 6,... Of the inner lid 4 is directed to the center of the inner lid along the descending inclined surface 5, and is radiated in the radial direction. Since it does not go, it does not easily spill out of the container. As a result, since the gap is not closed by the spilled matter, the stable ejection of steam is maintained.

[0016]

[Effects of the Invention] As described above, according to the present invention, since steam is spouted uniformly from all over the lid of the container,
Even when rotating by the turntable, a stable amount of steam without fluctuation reaches the steam sensor attached to a specific place in the heating chamber, and high-precision and excellent control becomes possible.

In addition, there is also an effect that even if a spill occurs, it does not easily spill out of the container.

[Brief description of the drawings]

FIG. 1 is a sectional view of one embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view.

FIG. 3 is a conceptual diagram when one embodiment of the present invention is set in a microwave oven.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Outer lid 3 Lid fitting part 4 Middle lid 5 Falling inclined surface 6 Steam passage hole 8 Projection

Claims (1)

(57) [Scope of request for utility model registration] 1. A container body 1 made of a microwave-permeable material and having a lid matching portion 3 formed by a flat portion at an opening edge, and a microwave attached to the lid matching portion of the container body. A descending inclined surface 5 made of a permeable material and descending from the peripheral edge toward the center is formed, and a suitable number of steam passage holes 6 are formed in the descending inclined surface and at appropriate locations on the upper surface of the peripheral edge. Inner lid 4 provided with projection 8
And an outer lid which is also made of a microwave-permeable material and which has an outer peripheral lower end placed on the peripheral edge provided with the projections of the inner lid to form a gap. Microwave oven container.