JPS5928245Y2 - 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 of this 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, in heaters such as electric ovens, when the set is used in a low position such as placed directly on the floor, the shelf on which the heated object is placed comes out 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 ovens that use high-frequency heating, it is difficult to connect the shelf and door body due to problems such as electric discharge, heat generation, and strength caused by the high frequency. In particular, 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 aims to solve the above problems and will be described below with reference to the drawings.

1 is a high-frequency heating device main body, 2 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 receiving shelf on which a rotary mounting table 7 is placed and which appears from the heating chamber 2 as the door body 5 is opened and closed;
It is constructed from a magnetically permeable metal material such as US 304.

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 a part of the standing wall 9a of the fitting 9 is configured as a horn 9a' as a locking part B. 2 in part
A pair of metal pins 10, 11, 10', 11' are caulked and fixed as locking portions A so as to face each other in a convex state.

Insulating rings 12, 13, 12', 13' made of a ceramic material such as alumina porcelain and each having a hollow circular cross section are attached to and detachable from the pins 10, 11, 10', 11' by retaining rings 14 such as E-rings. is installed on.

In the illustrated embodiment pins 10, 11.10', 11'
and the insulating rings 12, 13, 12', 13' are composed of common parts.

A pair of claw-like parts 6a made of sheet metal material are provided at the ends of the receiving shelf 6.
is provided with an insulating ring 12゜13.12', 1
3' in a detachable manner.

A rotatable roller 14 made of an insulating material such as glass fiber-filled Teflon is provided at the other end of the shelf 6, and when the door body 5 is pulled out as shown in FIG. It is cantilevered only at the shaped part 6a, and when the door body 5 is closed as shown in FIG.
It is supported on both sides in contact with a bottom wall 2a made of a magnetically permeable material such as SUS 304.

The rotary mounting table 7 has a shaft 2 on the back side of the bottom wall 2a as shown in FIG.
A magnet 17 is provided opposite to a magnet 16 attached to a pulley 15 rotatably supported by b.
The rotating mounting table 7 is rotated by the magnetic force between the magnets 16 and 17.
The driving force of the motor 18 causes the pulley 15 to rotate on the receiving shelf 6 as the pulley 15 rotates.

Reference numeral 19 indicates a roller of the pulley 15, and reference numeral 20 indicates a roller that rotatably supports the rotary mounting table 7.

The receiving shelf 6 and the rotary mounting table 7 are used during high frequency heating or heater heating with a plate 21 and a heated object 22 placed thereon as shown in FIG.

Reference numeral 23 denotes a saucer made of a sheet metal material on which the object to be heated 22 is placed and used only when heating the heater as shown in FIG. 10. As shown in FIG. A pair of U-shaped support fittings 24 are secured to the horn-shaped standing wall 9a' through a square hole 24a and one side 24b of the U-shape.

A plurality of horns 9a' are provided in pairs at appropriate pitches, and the height of the saucer 23 can be selected from several different heights.

In the case of heater heating, either the tray 6 or the tray 23 is used.

In Fig. 2, reference numerals 25 and 25' denote a pair of movable rails that pivot to open and close the door body 5, and a pair of fixed rails 26 and 26.
' to fit and slide.

In FIG. 1, 27 is an operation panel.

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

Furthermore, ceramic materials such as alumina porcelain are very strong against compressive loads but are very weak against bending, etc., but the insulating ring 12,
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 locking structure of the locking part A of the receiving shelf 6 and the locking part B of the saucer 23 is different, it is possible to prevent the receiving shelf 6 from being accidentally locked to the locking part B during high-frequency heating. Therefore, accidents caused by sparks and heat generation can be prevented.

Also, if the locking position of the receiving shelf 6 is incorrect, the magnet 1 of the rotating mounting table 7
The distance between the pulley 7 and the magnet 16 of the pulley 15 becomes large, making it impossible to rotate, causing uneven heating of the heated object 22, and the problem of unfinished cooking, but this can be prevented.

Furthermore, the locking structures of the locking parts A and B are different; the locking part B is made of a sheet metal material that is erected perpendicularly to the inner surface of the door body 5, and a part thereof is formed into a horn shape; is formed by providing a pin perpendicularly to the above-mentioned sheet metal material, so when the top side is lowered to lock the receiving shelf 6 to the locking part B, it will not be obstructed by the locking part B. , it can be locked by simply lowering it straight down, making it very easy to use.

Furthermore, since the claw-like portions 6a of the receiving shelf 6 are engaged with the metal fittings 9 while being located inside the standing wall 9a, when viewed from above the door body 5,
The retaining part A is very easy to see, making it easier to attach and detach the receiving shelf 6.

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

(1) The shelf can be easily and inexpensively held on the door body, and the structure can be designed to prevent sparks.

(2) It is easy to use because the locking portion of the tray does not get in the way when locking the tray.

(3) There is no mistake in the locking position of the tray and the tray. (4) Related to (3), accidents caused by sparks and heat generation can be prevented.

(5) In relation to (3), it is possible to prevent heating failure due to poor rotation of the rotary mounting table.

[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; Figure 4 is a cross-sectional view of the door body when it is stored, Figure 5 is a side view with the same part cut away,
Fig. 6 is a cross-sectional view of the rotary mounting table portion of the same main part, Fig. 7 is an enlarged side sectional view showing the mounting state of the receiving shelf, Fig. 8 is a top view of the same,
FIG. 9 is a cross-sectional view of the main part, and FIG. 10 is a perspective view showing the mounting state of the saucer. 1...Main body, 2...Heating chamber, 4...
... Heater, 5 ... Door body, 6 ... Shelf, 9 ... Metal fittings, 10.11 ... Metal pin, 14 ... ... retaining ring, 23 ... saucer, 25 ... movable rail, 26 ... fixed rail, 27 ... operation panel.

Claims (2)

[Scope of utility model registration request] (1) A heating chamber equipped with a heater heating cooking means and a high frequency heating cooking means, a door body for opening and closing the heating chamber, and an object to be heated that comes out of the heating chamber with the opening and closing of the door body. A locking part A that locks and holds the tray on the inner surface of the door body; 1. A high-frequency heating device comprising a locking part B that locks the locking part B, and the locking parts A and B have different locking structures. (2) The above-mentioned locking part B is made by standing a sheet metal material such as a stainless steel plate perpendicularly to the inner surface of the door body, and a part thereof is formed into a horn shape, and the locking part A is formed by having a pin perpendicularly to the above-mentioned sheet metal material. The high-frequency heating device according to claim 1, wherein the lever pin is formed by inserting a hollow ceramic material such as alumina porcelain.