JPS60245930A - High-frequency heating equipment - Google Patents

Abstract

PURPOSE:To increase strength and miniaturize the device by a method wherein an upper plate, side plates and a bottom plate are formed by one sheet of metallic plate so as to have a curly 9 shape configuration and one chamber, formed by the metallic plate, is utilized for a heating chamber while the other chamber is utilized for an electrinc chamber for a high-frequency generating device. CONSTITUTION:One sheet of metallic plate is bent and formed so as to form the upper plate 10a, the left side surface plate 10b, the left bottom plate 10c, a partitioning plate 10d, the right side surface plate 10e and the right bottom plate 10f of the heating chamber 11 while the partitioning plate 10d is welded to the upper plate 10a, the left bottom plate 10b is welded to the right bottom plate 10f, and a rear plate and a front plate are welded to the frame made of the metallic plate. The heating chamber 11 is made by the upper plate 10a, left side surface plate 10b, left bottem plate 10c, the partitioning plate 10d, the rear and front plates while the electric chamber 14, for the electric parts such as the high-frequency generator or the like, is made by the right side surface plate 10c, the partitioning plate 10d, the upper plate 10a, the right bottom plate 10f, the rear plate and the front plate. According to this constitution, the strength may be increased and the device may be miniaturized.

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 radiating high frequency waves into a heating chamber, which accounts for a high proportion of the material cost of a microwave oven. It is intended to omit the outer box.

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.
Usually, an inverted U-shaped side plate, a top plate, a back plate, etc. were attached to the outside of the heating chamber.

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

FIG. 1 is an exploded perspective view, and 1 is the top 1a of the heating chamber.

A substantially U-shaped metal plate forming the walls of left 1b and lower 1C, with a partition plate 2 between the top and bottom of the U-shaped metal plate.
is installed, and the left space separated by the partition plate 2 in a U-shaped space is used as the heating chamber 3, and the front opening is equipped with a door (not shown) that can be opened and closed, and the right space is divided by the partition plate 2. The electrical parts of the high frequency generator are stored in the compartment.

It is configured to form an electrical room 4 for storing the battery, and to provide an operation panel on the front side. When processing these, use the U-shaped metal plate 1.
After welding the rear plate 6 from behind, the partition plate 2'ff: is inserted, and the partition plate 2 is welded to the U-shaped metal plate 1 and the rear plate 3.

Thereafter, as shown in FIG. 2, electrical components such as the magnetron 6 and transformer 7 of the high frequency generator are housed in the electrical chamber 4, and the right side plate 8 is tightened with screws 9.

In the above configuration, the upper plate 11L of the heating chamber 1, the left side plate 1b
The bottom plate 1C and the back plate use the heating chamber wall as the main body wall, contributing to lower prices, but the right side plate 8 covers the entire right side and houses the essential electrical components. The electrical compartment 4 side lacked strength, and unless the number of screws 8 that attached the right side plate 8 was increased, it would not be strong enough to handle the cargo during transportation.

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, a side plate a, and a bottom plate of the heating device main body.

and a metal plate and a back plate of the main body, each of which has a side plate in the shape of a ``　 shape, and one of the two spaces formed in the shape of a ``　 shape is used as a heating chamber. , the front opening is provided with a door that can be opened and closed, while the other side of the space is formed with an electrical room for storing the electrical components of the high frequency generator, and an operating section is provided on the front side.Therefore, the main body The structure of the heating chamber wall 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 examples An embodiment of the present invention will be described below based on the drawings.

In FIG. 3, 10 is the upper plate 101L of the heating chamber 11.

Left side plate 10b, left bottom plate 10C2 partition plate 10d.

The partition plate 1od and the upper plate 10a are welded, the left bottom plate 10b and the right bottom plate 10f are welded, and the main body back plate of the heating chamber 11 is formed by welding the partition plate 1od and the top plate 10a, and the left bottom plate 10b and the right bottom plate 10f. 12 is welded from the rear thereof, and the front plate 13 is welded from the front.

Therefore, the top plate 1ON, the left side plate 10b, the left bottom plate 10C2
A heating chamber 11 is formed in a space constituted by the partition plate 10d, the main body back plate 12, and the front plate 13.

On the other hand, in the space constituted by the top plate 10a, the right side plate 10e, the right bottom plate 10f, the partition plate 10d, and the main body back plate 12 and front plate 13, 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 108 with screws 16. Figure 4 shows their completed drawings.

Although only the basic configuration of this embodiment has been described above, the configuration in which functional parts such as a door and a turntable are installed will now be described with reference to the side sectional view of FIG. 6.

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 chalk groove 19 is formed on its peripheral surface, a transparent plate 2o is fixed to the front surface of the door 17, and a transparent sheet is placed inside. 21 is attached.

Regarding the turntable mechanism, a motor 22 rotates a drive shaft 23, and a plate holder 24 fitted with the drive shaft 23 is rotated by a motor 22.
rotates. Note that the plate holder 24 rests on a roller 26 positioned by a ring 26.

There are several ways to create the approximate ``'' shape as shown in Figure 6.

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

(1) The heating device main body directly serves as a 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 the height direction, it is possible to make effective use of space in a small kitchen.

(4) Since the heating chamber is constructed in the shape of a ``'' character, the pressing process can be shortened and each side of the heating chamber can be formed by spot welding, compared to the conventional method where each side was created separately. This greatly contributes to cost reduction by drastically reducing the number of joints.

[Brief explanation of drawings]

Figure 1 is an exploded perspective view of the main parts of a conventional high-frequency heating device.
Fig. 2 is a sectional view of the wave blade in the middle, Fig. 3 is an exploded perspective view of the main part of a high-frequency heating device showing an embodiment of the present invention, Fig. 4 is a front sectional view of the same, and Fig. 6 is a side view of the same. The cross-sectional view and FIG. 10...Metal plate shaped like a letter, 11...Heating chamber, '12...Back plate of main unit, 13...
Front plate, 14...Electrical room, 15...Inspection window, 16...Screw, 17...°° door, 1
8...Punched metal plate, 19...Choke groove, 20...Transparent plate, 21...Transparent sheet, 22...Motor, 23... ... Drive shaft, 24 ... Pan holder, 25 ... Ring, 26 ... Roller. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
figure? #, /c Purchase 3 Figure 2

Claims (2)

[Claims] (1) Top plate, side plate a, and side plate S 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, a space formed by the top plate, the side plate a, the bottom plate, the partition plate and the main body back plate, the top plate, the side plate 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 chamber for heating, an operating section is provided on the front surface, and an upper plate, a side plate a, and a side plate of the heating chamber main body are provided. A high-frequency heating device in which the bottom plate and partition plate are made of a single metal plate in the shape of a square. (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.