JPH09310865A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To satisfactorily treat water droplets generated at the ceiling wall of a heating chamber by forming the ceiling wall of the chamber in an oblique surface, and preferably specifying its oblique angle. SOLUTION: A heating chamber 2 is provided in a sheathed frame 1, a turntable 5 for placing food 4 is provided in the chamber 2, and a door 6 is mounted at the front surface of the chamber 2. The chamber 2 is obliquely constituted so that the ceiling wall 8 is lowered from the front side toward the rear side and lowered from the central position in the longitudinal direction toward both the sides. The oblique angle is both about 10 to 14 deg.. The ceiling wall 8, both sidewalls and rear wall 10 are constituted to be continued via a recess curved surface 12. The curvature R of the surface 12 is about 20cm. A groove as a water reservoir is continuously formed at the position continued to the sidewalls and rear wall of the bottom 14 of the chamber 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for treating water drops during heating in a heating chamber of a cooking device such as a microwave oven.

[0002]

2. Description of the Related Art A large amount of water vapor is generated from food when cooking with heating in a microwave oven. When such water vapor fills the heating chamber, the inside of the heating chamber becomes difficult to see, and the water vapor adhering to the inner wall of the heating chamber becomes water droplets. It is not preferable.

Therefore, conventionally, by driving the fan, the steam in the heating chamber is discharged to the outside.

[0004]

However, even when the steam in the heating chamber is discharged by the fan as described above, the steam is not sufficiently discharged, and water droplets may remain in the heating chamber even if they are easily visible. The problem of falling on food remained.

The present invention has been made to solve the above problems, and an object of the present invention is to properly treat water droplets generated on the ceiling wall surface of a heating chamber.

[0006]

According to the present invention, in the heating cooker, the ceiling wall surface of the heating chamber is formed as an inclined surface.

According to the above construction, when water vapor generated from food during heating is attached to the ceiling wall surface and water droplets are generated, the water droplets flow down along the inclined surface, so that the water droplets drop directly downward to wet the food. There is no.

If the inclination angle of the ceiling wall surface is 10 ° or more, the water droplets can smoothly flow down, and if it is 14 ° or less, the inclination angle does not become so large and the upper part of the heating chamber is not formed. No useless space is formed in the space, so that the heating performance is not impaired and the device is prevented from increasing in size (the invention of claim 2).

Further, since the ceiling wall surface and the side wall surface continuous with the ceiling wall surface are formed by the concave curved surface (invention of claim 3), the water drops flow down to the side wall surface along the concave curved surface. Therefore, the drop of water drops from the ceiling wall surface is reliably prevented.

Further, the bottom of the heating chamber is provided with a recessed water reservoir for accumulating water flowing down along the side wall surface (the invention according to claim 4), so that the water flows down along the side wall surface. The water droplets are collected in the water reservoir without being scattered on the bottom surface.

[0011]

1 and 2 show a simplified structure of a microwave oven as a heating cooker, FIG. 1 shows a cross-sectional structure in the front-rear direction, and FIG. 2 shows a cross-sectional structure in the left-right direction orthogonal to FIG. Indicates.

An outer frame 1 is provided with a heating chamber 2 therein, a turntable 5 on which food 4 is placed, and a door 6 on the front of the heating chamber 2. It is installed.

The heating chamber 2 has its ceiling wall surface 8 lowered from the front side to the rear side as shown in FIG. 1, and as shown in FIG. It is configured so that it becomes lower as it goes down. Each of the inclination angles a and b is about 12 °.

Further, the ceiling wall surface 8, the side wall surfaces 9 and the rear wall surface 10 are constructed so as to be continuous by a concave curved surface 12. The curvature R of the curved surface 12 is about 20 cm.

Further, as shown in FIG. 3, a groove 15 as a water reservoir is continuously formed at a position continuous with the both side wall surfaces 6 and the rear wall surface 7 of the bottom surface 14 of the heating chamber 2. The groove 15 has a deep corner 15a on one side. An exhaust hole 17 is formed in the upper portion of the rear wall surface 10 corresponding to the corner portion 15a.

With the above-mentioned structure, when water vapor is attached to the ceiling wall surface 8 of the heating chamber 2 when the food 4 is heated and water droplets are generated, the water droplets are inclined along the inclination because the ceiling wall surface 8 is inclined. It flows down, and further flows down along the curved surface 12 to reach the side wall surface 6 or the rear wall surface 7. In this way,
Water drops on the ceiling wall surface 8 are prevented from falling directly downward, which prevents the food 4 from getting wet.

When the generation of water drops is small, both side wall surfaces 6,
The water droplets that reach the rear wall surface 7 evaporate as the temperature of the heating chamber 2 rises, but when the water droplets are generated frequently, they further flow down and collect in the groove 15 of the bottom surface 14, especially in the deep corner portion 15a. Then, at that portion, it is vaporized into water vapor. At that time, the rear wall surface 1 at a position corresponding to the corner 15a
Since the exhaust hole 17 exists at the upper part of 0, the vaporized water vapor that rises when exhausted from the exhaust hole 17 to the outside of the heating chamber 2 and almost reaches the ceiling wall surface 8 when the fan is operating. There is no need to regenerate water drops on the ceiling wall surface 8.

[0018]

According to the present invention, water droplets generated by water vapor adhering to the ceiling wall surface of the heating chamber during heating are
Since it flows down along the inclined surface, it is prevented from directly falling downward to wet the food, and as a result, the food is cooked well.

[Brief description of drawings]

FIG. 1 is a simplified cross-sectional view in the front-rear direction of a heating cooker according to the present invention.

FIG. 2 is a simplified cross-sectional view of the heating cooker according to the present invention in the left-right direction.

FIG. 3 is a plan view of the heating chamber.

[Explanation of symbols]

 2 heating chamber 8 ceiling wall surface 9 side wall surface 10 rear wall surface 12 concave curved surface

Claims (4)

[Claims] 1. A heating cooker characterized in that the ceiling wall surface of the heating chamber is an inclined surface. 2. The inclination angle of the ceiling wall surface is 10 to 14 °
The heating cooker according to claim 1. 3. The ceiling wall surface and the side wall surface continuous with the ceiling wall surface are continuous by a concave curved surface.
The cooker described. 4. The heating cooker according to claim 3, wherein a water reservoir for accumulating water flowing down along the side wall is recessed in the bottom surface of the heating chamber.