JP2552720Y2 - microwave - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microwave oven for performing cooking such as cooking and cooking by detecting steam generated by heating.

[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. A container configured with an inner lid to be installed is used. 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. Also, on the surface on which the outer lid is placed on the periphery of the inner lid, protrusions are provided at appropriate places,
A gap is formed between the outer lid and the lower end of the outer peripheral edge placed on the outer lid, so that the steam is uniformly jetted through the gap. Then, the container is rotated by a turntable to realize uniform heating and cooking, and to spout steam evenly in all directions.

[0007]

The food in the container is cooked uniformly, and the steam generated by the heating passes through the steam passage hole formed in the downward slope of the inner lid, and once goes to the center, then turns in the radial direction. In other words, the ink is evenly ejected from the gap formed by the protrusion on the inner lid peripheral edge and the outer lid outer peripheral edge lower end. 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. When a predetermined amount of steam is detected, the control circuit controls the operation of the magnetron.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to the drawings. FIG. 1 shows a state in which a food container is set on a turntable of a microwave oven, wherein 11 is a heating chamber, 12 is a turntable, 13 is a magnetron, and 14 is a steam comprising a temperature sensor and a gas sensor. Sensors, and 15
Is a control circuit.

FIG. 2 is a sectional view of the container used in the present invention, and FIG. 3 is a partially cutaway perspective view thereof. 1 and 2, reference numeral 1 denotes a cylindrical container main body, and reference numeral 2 denotes an outer lid for closing the container main body. These containers and lids are made of ceramics with excellent microwave permeability, and the diameter of the containers is 120
mm, depth 100 mm, and lid height 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.
Reference numeral 5 denotes a descending inclined surface which descends from the periphery of the inner lid toward the center and inclines, 6 denotes a steam passage hole formed in the descending inclined surface, and 7 denotes a knob of 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 the steam once flows toward the center when passing through the steam passage holes 6, 6,... Of the inner lid 4, and then turns radially. , And the flow out of the container through a gap formed between the protrusions 8, 8,... Of the inner lid peripheral edge and the lower end of the outer lid 2 peripheral edge. In addition, the gap between the outer lid 2 and the inner lid 4 has protrusions 8, 8,.
Therefore, the steam is always uniformly ejected from the entire area.

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.

[0011] When the food is heated evenly and boiling occurs to generate steam, the steam is passed through the steam passage holes 6 in the inner lid 4,
, And then concentrates on the central part, then hits the inner wall surface of the outer lid 2 and changes its direction in the radial direction toward the gap formed by the projections 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]

As described above, according to the present invention, the food in the container is uniformly heated by the rotation of the turntable, and the steam is evenly ejected 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 conceptual diagram of a microwave oven according to an embodiment of the present invention.

FIG. 2 is a sectional view of a container constituting one embodiment of the present invention.

FIG. 3 is a partially cutaway perspective view of the same container.

[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 11 Heating chamber 12 Turntable 13 Magnetron 14 Steam sensor 15 Control circuit

Claims (1)

(57) [Scope of request for utility model registration] 1. A heating chamber 11, a magnetron 13 for supplying microwave energy into the heating chamber, a turntable 12 in the heating chamber on which an object to be heated is mounted and rotated, and which is discharged from the heating chamber. A steam sensor 14 for detecting the temperature of the steam, a control circuit 15 for controlling the magnetron based on a signal from the steam sensor 14, and a microwave-permeable material that is mounted on the turntable. And a container body 1 having a lid fitting portion 3 formed by a flat portion at an opening edge portion, and a lid which is attached to the lid fitting portion of the container body and is also made of a microwave permeable material, and has a center from a peripheral portion. A downwardly inclined surface 5 is formed which is inclined downwardly, and a suitable number of vapor passage holes 6 are formed in the downwardly inclined surface and projections 8 are provided at appropriate positions on the upper surface of the peripheral portion. And an outer lid made of the same microwave-permeable material and having a lower end on the outer peripheral edge placed on the peripheral edge provided with the projections of the inner lid to form a gap. A microwave oven comprising a combination with a container.