JPS645220B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a so-called microwave oven that cooks an object by emitting high frequency waves into a heating chamber, so it has a high composition ratio in the material cost of a microwave oven. The outer box is not intended to be omitted.

Conventional structure and its problems The structure of the heating chamber of a conventional microwave oven consists of a top plate, a U-shaped side plate, a bottom plate, a front plate, and a back plate. It was common to have letter-shaped side plates, top plates, and back plates.

However, in recent years, as microwave ovens have become cheaper and more compact, products have been developed that use part of the heating chamber as is in the main body, and the most notable ones are the configurations shown in Figures 1 and 2. It is.

Figure 1 is an exploded perspective view, where 1 is the top 1a of the heating chamber,
A substantially U-shaped metal plate forms the walls of the left 1b and lower 1c, and a partition plate 2 is installed between the top and bottom of the U-shaped metal plate, and the partition plate 2 is installed in the U-shaped space. The left space partitioned by 2 is used as a heating chamber 3, and a door (not shown) that can be opened and closed is provided at the front opening of the heating chamber 3.
The space on the right side is configured to form an electrical chamber 4 for housing electrical components of the high frequency generator, and an operating section is provided on the front surface. When processing these, after welding the rear plate 5 from the rear of the U-shaped metal plate 1, the partition plate 2 is inserted, and the partition plate 2, the U-shaped metal plate 1, and the rear plate 3 are welded. Thereafter, as shown in Fig. 2, electrical components such as the magnetron 6 and transformer 7 of the high frequency generator are stored in the electrical room 4, and the right side plate 8
Tighten with screw 9.

In the above configuration, the upper plate 1a, the left side plate 1b, the bottom plate 1c, and the back plate of the heating chamber 1 are the same as the heating chamber wall, which also serves as the main body wall, contributing to lower costs. Since the electrical compartment 4 side that houses the important electrical components is not strong enough, unless the number of screws 8 that attach the right side panel 8 is increased, it will not be strong enough to handle cargo during transportation. It didn't turn out to be.

OBJECTS OF THE INVENTION The present invention aims to eliminate the above-mentioned drawbacks and provide a high-frequency heating device that is inexpensive and compact.

Structure of the Invention In order to achieve the above object, the high frequency heating device of the present invention includes an upper body of a heating device main body, a side plate a, a bottom plate,
and a metal plate and a back plate of the main body, each of which has a side plate b formed in the shape of a substantially “” shape, and one of the two spaces formed in the shape of the “” shape is used as a heating chamber. , has a door that can be opened and closed at its front opening,
On the other hand, on the other side of the space, an electrical chamber is formed to house electrical components of the high-frequency generator, and an operating section is provided on the front surface. Therefore, the structure of the main body and the heating chamber wall can be reduced to a minimum of one piece, and it is possible to realize not only a low price but also a compact size.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 3, 10 is the upper plate 10 of the heating chamber 11.
a, left side plate 10b, left bottom plate 10c, partition plate 10
d, a metal plate approximately in the shape of a “” shape that forms the right side plate 10e and the right bottom plate 10f, and the partition plate 10d and the top plate 10
a, the left bottom plate 10b and the right bottom plate 10f are welded, the main body back plate 12 of the heating chamber 11 is welded from behind, and the front plate 13 is welded from the front.

Therefore, a heating chamber 11 is formed in a space constituted by the top plate 10a, left side plate 10b, left bottom plate 10c, partition plate 10d, main body back plate 12, and front plate 13.

On the other hand, the top plate 10a, the right side plate 10e, the right bottom plate 1
0f, partition plate 10d, main body back plate 12 and front plate 1
3, an electrical chamber 14 is formed to house electrical components such as a high frequency oscillator.

An inspection plate 15 for attaching or replacing electrical parts is fastened to the right side plate 10e with screws 16. Figure 4 shows their completed drawings.

So far, only the basic configuration of this embodiment has been described. Next, the configuration in which functional parts such as a door and a turntable are installed will be explained with reference to the side sectional view of FIG. 5.

Reference numeral 17 denotes a door, and a metal plate 18 having a large number of punched holes is welded to the door body, a chiyoke groove 19 is formed on the peripheral surface thereof, a transparent plate 20 is fixed to the front surface of the door 17, and a transparent sheet is placed inside. 21 is attached.

Next, regarding the turntable mechanism, the motor 22
The drive shaft 23 is rotated, and the plate holder 24 fitted with the drive shaft 23 is rotated. Incidentally, the plate holder 24 rests on a roller 26 that is positioned by a ring 25.

There are several ways to create the approximate "" shape, as shown in FIG.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) The heating device itself becomes the heating chamber, and there is no wasted space in the height direction of the heating chamber, resulting in an extremely compact high-frequency heating device.

(2) Since it is compact in the height direction, the packaging for transportation is also compact and transportation costs can be reduced.

(3) Since it is compact in height, space can be used effectively in small kitchens.

(4) Since the heating chamber is constructed in the shape of an approximate “”, the pressing process can be shortened and each side of the heating chamber can be joined by spot welding, compared to the conventional method of creating each side separately. This will greatly contribute to cost reduction, such as a drastic reduction in the number of locations.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the main parts of a conventional high-frequency heating device, Fig. 2 is an enlarged sectional view of the same part, and Fig. 3 is an exploded perspective view of the main parts of a high-frequency heating device showing an embodiment of the present invention. , FIG. 4 is a front sectional view of the same, FIG. 5 is a side sectional view of the same, and FIGS. DESCRIPTION OF SYMBOLS 10...Abbreviation ""-shaped metal plate, 11...Heating chamber, 12...Main body back plate, 13...Front plate, 14...
Electrical room, 15...Inspection window, 16...Screw, 17...
...Door, 18...Punched metal plate, 19...Chiyoke groove, 20...Transparent plate, 21...Transparent sheet, 22...Motor, 23...Drive shaft, 24...
Plate holder, 25...ring, 26...roller.

Claims (1)

[Claims] 1. Upper plate, side plate a, side plate b of the heating device main body,
A bottom plate, a partition plate and a main body back plate are provided between the top plate and the bottom plate, and a space formed by the top plate, the side plate a, the bottom plate, the partition plate and the main body back plate, and the space formed by the top plate, the side plate b and the bottom plate. Two spaces are formed by the partition plate and the back plate of the main unit, one space is used as a heating chamber with a door that can be opened and closed at the front opening, and the other space is used to store the electrical components of the high frequency generator. In addition to forming an electrical room with an operating section on the front, the top plate of the heating chamber main body, side plate a, side plate b, bottom plate, and partition plate are formed by a single metal plate in the shape of a letter “.” A high-frequency heating device composed of. 2. The high-frequency heating device according to claim 1, wherein an inspection window smaller than the area of the side plate or bottom plate forming the electric room is provided.