JPS6253914B2 - - Google Patents

Description

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

Conventional structure and its problems As shown in FIG. 3, the structure of a conventional microwave oven, which is, for example, a high-frequency heating device, includes a heating chamber 2 in which the object to be heated is housed in a main body 1, and an opening of this heating chamber 2. A door 3 is provided in the section so as to be openable and closable. Reference numeral 8 denotes an opening peripheral plate with which the inner plate 9 of the door 3 makes surface contact when the door 3 is closed, and is configured to prevent high frequency waves from leaking from inside the heating chamber 2.

The upper end of the bent opening peripheral plate 8, the sash 10, and the sash cover 11 are fixed with screws 21 to form the front surface of the main body 1.

In the high-frequency heating device having such a configuration, a gap is created at the joint 22 between the opening peripheral plate 8 and the sash 10, which not only has an unfavorable appearance, but also makes it difficult to clean if food particles get in there, making it difficult to use. It was bad.

Furthermore, if the intervals between the screws 21 that attach the sash 10 and the sash cover 11 to the opening peripheral plate 8 are too wide, the joint 21 between the sash 10 and the opening peripheral plate 8 may
Since the gap between the parts becomes large, the parts must be tightened at appropriate intervals, which results in poor assembly workability.

Further, when the sash 10 and the sash cover 11 are fastened to the opening peripheral plate 8 with the screws 21, there is a drawback that the joint surfaces are curved and radio waves are likely to leak.

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 assemble, easy to use, and does not leak radio waves.

Structure of the Invention In order to achieve the above object, the high frequency heating device of the present invention extends the opening peripheral plate of the heating chamber with which the inner plate of the door makes surface contact when the door is closed, so that the opening peripheral plate of the heating chamber faces at least the periphery of the door. The structure forms one side of the sash provided at the end of the sash, and the locking part of the sash cover is provided at the end of the sash, making it easy to install the sash cover.Moreover, since the sash and the opening peripheral plate are integrated, This has the advantage that it is possible to prevent radio wave leakage due to deformation of the sash, and to obtain a high-frequency heating device that is easy to clean and easy to use.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

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 that it can be opened and closed; 4 is an operation panel provided on the front of the main body 1; this operation panel 4 includes a timer knob 5 for setting the heating time, and a cooking start button 6. , an indicator lamp 7 for indicating the cooking time, etc. are provided.

In FIG. 2, reference numeral 8 denotes an opening peripheral plate with which the inner plate 9 of the door 3 makes surface contact when the door 3 is closed.
is bent outward above door 3, and part of the sash 1
0 and a sash cover 1 at the end.
One locking portion 12 is provided. One end of this sash cover 11 is connected to the locking portion 12 of the sash 10.
The other end is locked to the opening peripheral plate 8. The gap L between the sash 10 and the door 3 is for opening and closing the door 3, and although it is better to be narrow from the viewpoint of preventing radio wave leakage, it is set to 2 to 4 mm in consideration of mass production. Further, the dimension H between the opening peripheral plate 8 and the engaging portion between the sash 10 and the sash cover 11 may be set as appropriate within the range of 5 mm to the thickness of the door 3, taking into consideration standards regarding radio wave leakage and appearance.

As described above, according to the high-frequency heating device of this embodiment, the opening peripheral plate 8 of the heating chamber 2 is bent and extended outward to form the one-sided sash 10, and the sash cover 11 is attached to the end of the sash 10. By providing the stop portion 12, the sash cover 11
It is extremely easy to attach the sash cover 11 to the sash 10, and since the other end of the sash cover 11 is locked to the opening peripheral plate 8, the sash cover 11 can be easily attached in a stable state.

Furthermore, since one side of the sash 10 is integrally formed with the extension of the opening peripheral plate 8, even if food waste adheres to the opening peripheral plate 8, it is easy to clean, making it easier to use, and improving the assembly process. This has the effect of being able to provide a high frequency heating device that is simple and free from radio wave leakage.

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

(1) By configuring at least one side of the sash integrally with the extension of the opening peripheral plate of the heating chamber,
It is possible to reduce assembly work man-hours.

(2) Even if food particles adhere to the opening peripheral plate, the opening peripheral plate and the sash are constructed as one unit, so
Easy to clean and keep clean.

(3) By providing the locking part of the sash cover at the end of the sash, the time required for installing the sash can be shortened.

(4) By integrally providing the sash and the opening peripheral plate, it is possible to always maintain a constant distance between the sash and the door, further enhancing the effectiveness of preventing radio wave leakage.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a high-frequency heating device that is an embodiment of the present invention, Fig. 2 is a side sectional view taken along line A-A' in Fig. 1, and Fig. 3 is a conventional example corresponding to Fig. 2. FIG. 2... Heating chamber, 3... Door, 8... Opening peripheral plate,
10... Satsushi, 11... Satsushi cover, 1
2...Locking part.

Claims (1)

[Scope of Claims] 1. A heating chamber for accommodating an object to be heated, a door provided at the opening of the heating chamber so as to be openable and closable, a sash and a sash cover provided around the door to face each other; an opening periphery plate provided at the opening periphery of the heating chamber, with which an inner plate of the door makes surface contact when the door is closed, and at least one side of the sash is integrally formed with an extension of the opening periphery plate. At the same time, the high-frequency heating device is configured such that a locking portion of the sash cover is provided at an end of the sash. 2. The high-frequency heating device according to claim 1, wherein one end of the sash cover is engaged with a locking portion of the sash, and the other end is locked with the opening peripheral plate.