JPS6120782B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-frequency heating device, particularly to a positioning member for a saucer, and its purpose is to generate sparks between a saucer and a positioner that positions the saucer. The goal is to prevent this from happening.

In the conventional high-frequency heating apparatus, a positioning body for positioning the tray is provided on a table on which the tray is placed, but this case has the following drawbacks.

In other words, the saucer and positioning body are made of metal for heat resistance and ease of processing, and when high-frequency electromagnetic waves are supplied at the start of cooking, sparks are generated between them, damaging them. It was hot because it would get hot.

Therefore, the present invention attempts to eliminate the above-mentioned conventional drawbacks by making the size of the positioning body approximately 1/4 of the wavelength of high-frequency electromagnetic waves.

Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

In Fig. 1, 1 is a main body case, and an operation panel 2 is provided on the front right side of this main case 1. A heating chamber 3 is provided inside this main case 1, and a heating chamber 3 is provided inside the main case 1. A door 5 equipped with a door screen 4 is provided at the front of the room 3 so as to be openable and closable.

A heater (not shown) is provided above the heating chamber 3, and high-frequency electromagnetic waves are supplied into the heating chamber 3 from a high-frequency oscillator (not shown).

That is, in this embodiment, the food to be cooked is heated by a heater and dielectrically heated by high frequency electromagnetic waves.

FIGS. 2 and 3 show accessory parts removably provided in the heating chamber 3. FIG.

That is, as shown in FIG. 2, a circular recess 7 is provided in the bottom wall 6 of the heating chamber 3 by pressing, and a disc-shaped rotary plate 8 is rotatably provided within this recess 7. .

Here, to briefly explain the rotational driving operation of the rotary plate 8, although not particularly shown, a plurality of permanent magnets are arranged in a circular manner on the lower surface of the rotary plate 8, while the bottom wall 6 A rotary drive plate equipped with a plurality of permanent magnets is provided below the permanent magnet, and by rotating the rotary drive plate, magnetic coupling (for example, attractive force) between the two permanent magnetic forces causes the rotary plate to move. 8 to rotate.

The bottom wall 6 is made of stainless steel in order to obtain magnetic coupling between the two permanent magnets, that is, to allow the magnetic flux to pass through.
It is made of non-magnetic material such as SUS304.

Next, in FIG. 2, reference numeral 9 indicates a support roller for the rotary plate 8, and reference numeral 10 indicates a first saucer having legs 11 on the bottom surface. Reference numeral 12 denotes a nearly circular metal wire mounting stand as shown in FIG. is attached.

15 is a second circular saucer made of metal;
This tray 15 is placed on the upper surface of the table 12 and is positioned by three metal positioning bodies 16 fixed to the table 12 by welding.

In the above configuration, FIG. 2 shows a case where grill cooking is performed within the heating chamber 3.

That is, during grill cooking, it is preferable to heat the food at a high temperature by keeping the distance between the heater and the food as close as possible.
A second saucer 15 is provided, and the food to be cooked is placed in this saucer 15.

In this case, the second saucer 15 is positioned on the stand 12 by the positioning body 16, but there is a risk that sparks may be generated between the positioning body 16 and the saucer 15 due to high frequency electromagnetic waves, resulting in damage. .

Therefore, in this embodiment, a part of the positioning body 16, which is a disc body and whose outer diameter is 1/4 (3 cm) of the wavelength of high-frequency electromagnetic waves (usually about 12 cm), is used as shown in FIGS. 4a and b.
I decided to bend it upwards as shown.

Therefore, the electric field strength becomes almost zero at the outer periphery of the positioning body 16, and as a result, the electric field strength between the saucer 15 and the positioning body 1 is reduced to almost zero.
Sparks no longer occur between the two.

In the above embodiment, the positioning body 16 is circular, but it may be oval or other shapes, for example.

As described above, according to the present invention, sparks do not occur between the saucer and the positioning body, and problems such as damage to the sparks do not occur.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a high-frequency heating device according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of a main part of the same device, FIG. 3 is an enlarged perspective view of a main part of the same device, and FIG. b is an enlarged top view and an enlarged front view of the main parts of the same device. 3... Heating chamber, 12... Stand, 15... Saucer,
16...Positioning body.

Claims (1)

[Scope of Claims] 1. A heating chamber to which high-frequency electromagnetic waves are supplied from a high-frequency oscillator, a table provided in the heating chamber, and a saucer placed on the tray, the position of the tray being set on the table. A high-frequency heating device characterized in that one or more positioning members are provided, and the size of the positioning member is approximately 1/4 of one wavelength of the high-frequency electromagnetic wave. 2. The high-frequency heating device according to claim 1, wherein the positioning body is formed by bending a part of a disc body upward.