JPS6253915B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a high-frequency heating device for dielectrically heating an object to be heated housed in a heating chamber.

Structure of a conventional example and its problems As shown in FIG. 6, a conventional microwave oven, which is, for example, a high-frequency heating device, is provided with a heating chamber 2 for accommodating an object to be heated in a main body 1, and an opening of this heating chamber 2 is provided. A door 3 is provided to be openable and closable. Reference numeral 8 denotes an opening peripheral plate constituting the opening of the heating chamber 2, whose upper end is bent inward, and a sash 9 and a sash cover 10 are attached to this bent portion with screws 21. 1
5 is an inner plate provided on the back side of the door 3, and when the door 3 is closed, this inner plate 15 comes into surface contact with the opening peripheral plate 8;
This is to prevent leakage of radio waves from inside the heating chamber 2.

In the high-frequency heating device having such a configuration, unless the sash 9 and the sash cover 10 are attached to the opening peripheral plate 8 with screws 21 at appropriate intervals, the sash 9 will curve upward and radio waves will easily leak out. , which had poor assembly workability.

Also, the joint 22 between the sash 9 and the opening peripheral plate 8
Not only is the appearance of the gap undesirable, but if food particles get into the gap, it is difficult to clean, making it inconvenient to use.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and aims to provide a high-frequency heating device that is easy to use and has excellent assembly workability.

Structure of the Invention In order to achieve the above object, the high-frequency heating device of the present invention includes an opening peripheral plate of the heating chamber and a sash provided opposite the peripheral edge of the door, which are integrally configured, and a sash cover that covers the sash. The structure uses the mounting part as an insertion guide for mounting the main body, which reduces the work required to attach the sash and the opening peripheral plate, and the mounting part of the sash cover that covers the sash serves as an insertion guide for mounting the main body, greatly improving assembly work efficiency. can be improved.

Furthermore, by integrally configuring the sash and the opening peripheral plate, it is possible to provide a high-frequency heating device that is easy to use, such as enhancing the effect of preventing power leakage and making it easier to clean.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

In FIG. 1, reference numeral 1 denotes a main body of the high-frequency heating device, and a heating chamber 2 in which the object to be heated is accommodated.
is provided. 3 is a door provided at the opening of the heating chamber 2 so as to be openable and closable. Reference numeral 4 denotes an operation panel provided on the front side of the main body 1, which includes a timer knob 5 for setting the cooking time, a cooking start button 6, a display lamp 7 for indicating the cooking time, and the like.

In Fig. 2, reference numeral 8 denotes an opening peripheral plate that constitutes the opening of the heating chamber 2, and its upper part is bent forward into a substantially L-shape to form a sash 9 on one side, and the end portion is shown in Fig. 3. A locking portion 11 with the sash cover 10 is provided, which is bent as shown in FIG. This approximately U-shaped sash cover 10 has one end that engages with a locking portion 11 provided on the sash 9, and the other end that engages with a notch 12 (see FIG. 3) provided on the sash 9. A pawl portion 14 provided on a mounting portion 13 of the sash cover 10 is attached to the sash 9 by being engaged with the opening peripheral plate 8. The mounting portion 13 of the sash cover 10 serves as an insertion guide for mounting the main body 1. Reference numeral 15 denotes an inner plate provided on the back surface of the door 3, which is in surface contact with the opening peripheral plate 8 when the door 3 is closed, and is configured to prevent radio waves from leaking from inside the heating chamber 2. L is a dimension necessary for opening and closing the door 3, and from the viewpoint of preventing radio wave leakage, the smaller the dimension, the better, but it is set to 2 to 4 mm in consideration of mass production. H is the protruding dimension of the opening peripheral plate 8 constituting the sash 9, and the dimension may be appropriately set from 5 mm to the thickness of the door 3 in consideration of various standards for radio wave leakage, design, etc. In FIG. 1, 16 is a left sash cover, and 17 is a lower sash cover.

FIG. 4 shows another embodiment, in which a groove 18 approximately equal to the protruding dimension of the opening peripheral plate 8, that is, the length of the sash 9, is provided in the sash cover 10, and the sash cover 10 is attached to the sash 9.

The attachment of the sash cover and main body in the above configuration will be explained below. Satsushi cover 10
The end of the sash 9 is locked with a locking part 11 provided on the sash 9, and a mounting part 13 provided on the sash cover 10 is engaged with a notch 12 of the sash 9,
The sash cover 10 is attached to the sash 9 by engaging the claw portion 14 provided at the end of the mounting portion 13 with the opening peripheral plate 8. In this state, as shown in FIG. 5, the main body 1 can be easily attached by sliding the main body 1 in the direction of the arrow along the upper surface of the attachment part 13 of the sash cover 10.

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

(1) By configuring the opening peripheral plate of the heating chamber and the sash as one unit, it is possible to reduce the number of assembly steps and parts, and the high-frequency heating is easy to clean even if food particles adhere to the opening peripheral plate, making it easy to use. It becomes a device.

(2) By integrally configuring the sash and the opening peripheral plate, the distance between the sash and the door periphery can be kept almost constant, thereby increasing the effectiveness of preventing radio wave leakage.

(3) It is extremely easy to attach the sash cover, and since the attachment part of the sash cover serves as an insertion guide for attaching the main body, the high-frequency heating device can be provided with an easy-to-assemble main body.

[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 a cross-sectional view taken along line A-A' in FIG. FIG. 4 is a sectional view showing the essential parts of a high-frequency heating device according to another embodiment of the present invention; FIG. 5 is a sectional view for explaining the method of attaching the main body; FIG.
The figure is a cross-sectional view showing the main parts of a conventional high-frequency heating device. 1...Main body, 2...Heating chamber, 3...Door, 8...
Opening peripheral plate, 9... sash, 10... sash cover, 13... mounting portion.

Claims (1)

[Claims] 1. A heating chamber that accommodates the object to be heated, a door provided at the opening of the heating chamber so as to be openable and closable, a sash provided opposite the periphery of the door, and a cross section of approximately A letter-shaped satsushi cover,
An opening peripheral plate constituting the opening of the heating chamber, the opening peripheral plate and the sash are integrally configured, and a mounting part of a sash cover that covers the sash serves as an insertion guide for attaching the main body. High frequency heating device.