JPS6023602Y2 - High frequency heating device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a type of high-frequency heating device in which the object to be heated comes out and leaves the heating chamber by opening and closing the door.
The purpose is to ensure that the shelf on which the object to be heated is placed is properly locked and held on the door body.

Conventionally, when using electric cookers such as electric open cookers in a low position such as placing the set directly on the floor, there is a method in which the shelf on which the heated item is placed appears and disappears as the door opens and closes. It was said that it was very easy to use, as it was easy to put in and take out heated items.

However, in open systems that use high-frequency heating, it is difficult to connect the shelf and door body due to problems such as discharge, heat generation, and strength caused by the high frequency, and especially when trying to make the shelf detachable from the door body, problems such as those described above occur. Until now, no type of device has been realized in which the shelf cannot be avoided and the shelf appears and disappears as the door body is opened and closed.

The present invention is intended to solve the above problems, and will be described below with reference to the drawings.

In Figures 1 to 7, 1 is the main body of the high-frequency heating device, 2
3 is a heating chamber, 3 is a high frequency supply source to the heating chamber 2, 4 is a heater for heating and cooking, 5 is a door body for opening and closing the heating chamber 2, 6 is a door body on which the object to be heated 7 and a plate 8 are placed; The shelf is made of a metal material and protrudes and retracts from the heating chamber 2 as the heating chamber 5 is opened and closed.

A pair of metal fittings 9 made of an L-shaped sheet metal material are fixed to the inner surface of the door body 5, and two pairs of metal pins 10. 11. 10' and 11' are caulked and fixed inwardly facing each other in a convex state.

The pins 10, 11, 10', 11' each have an insulating ring 12, 13, 12' made of a ceramic material such as alumina porcelain and having a hollow circular cross section.

13' is attached, pins 10, 11.10', 1
The insulating rings 12, 13, 12', and 13' can be attached to and detached from the insulating ring 1' by means of a retaining ring 14 such as an E-ring.

In this embodiment, the pins 10, 11, 10', 11' and the insulating rings 12, 13, 12', 13' are common parts.

A pair of claw-like parts 6a made of sheet metal material are provided at the ends of the receiving shelf 6 as shown in FIG.
3, 12', and 13' by removably engaging.
The receiving shelf 6 has a pair of upper and lower insulating rings 12, 13, 12', 1
3' is held on the door body 5 in a cantilevered manner so that a compressive load is applied to the insulating rings 12, 13, and 12', 13'.

In Fig. 2, 14.14' is a pair of movable rails that pivot to open and close the door body 5, and a pair of fixed rails 15.15'.
It fits and slides.

In FIG. 1, 16 is an operation panel.

In this way, the metal fitting 9 on the door body 5 side and the claw-like portion 6a of the receiving shelf 6 are engaged with the metal fitting 9 on the door body 5 side through the insulating rings 12, 13, 12', and 13' made of a ceramic material such as alumina porcelain. Therefore, there is no risk of generating sparks or generating heat at the engaging portion during high-frequency heating.

Ceramic materials such as alumina porcelain are very strong against compressive loads but are very weak against bending.
Since only a simple compressive load is applied to the insulating rings 12, 13, 12', 13' even if a large load is applied to the receiving shelf 6, the insulating rings 12, 13, 12', 13' will not break.

Furthermore, even if it is damaged, it can be easily replaced by removing the retaining ring 14.

Furthermore, since the claw-like portions 6a of the receiving shelf 6 are engaged while being located inside the standing wall 9a of the metal fitting 9, the retaining portion is very easy to see when viewed from above the door body 5, and the attaching and detaching of the receiving shelf 6 is easy. Very easy to do.

As explained above, according to the present invention, the following effects can be expected.

(1) It was possible to easily and inexpensively hold the shelf on the door body, and the structure was able to create no sparks or heat generation.

(2) The insulating part, which is the weakest in terms of strength, is made of a ceramic material that is strong against compressive loads, such as alumina porcelain, and the shape of the insulating part is made into a ring shape, which allows for simple compression to be applied. The engagement can be made extremely strong, making it possible for the first time to use a high-frequency heating device in which a receiving shelf appears and retracts as the door opens and closes.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a high-frequency heating device showing an embodiment of the present invention with the door open, Fig. 2 is an exploded perspective view of the main parts, Fig. 3 is a perspective view of the main parts, and Fig. 4 is 5 is an enlarged side view showing the mounting state of the main part receiving shelf, FIG. 6 is a top view of the same, and FIG. 7 is a sectional view of the turn section. 1...Main body, 2...Heating chamber, 5...
... Door body, 6 ... Shelf, butt ... Plate, 9
...Metal fittings, 9a... Standing wall, 10,1
0', 11, 11'...Metal pin, 12.13
...Insulation ring, 14...Retaining ring.

Claims (2)

[Scope of utility model registration request] (1) A heating chamber equipped with a high-frequency heating means, a door for opening and closing the heating chamber, and a receiver configured to move out of the heating chamber with the object to be heated placed thereon as the door opens and closes. The receiving shelf has one end inserted into a pair of upper and lower pins fixed to a pair of vertical walls perpendicular to the inner surface of the door body, and the receiving shelf has a hollow space made of a ceramic material such as alumina porcelain. A high-frequency heating device characterized in that the high-frequency heating device is supported on a door body in a cantilever manner by the pair of upper and lower insulating rings by removably locking the outer periphery of the insulating ring. (2) The high-frequency heating device according to claim 1, wherein the pin and the insulating ring are convex so as to face each other inside the pair of standing walls.