JPH07127864A - High frequency heater - Google Patents

Abstract

PURPOSE:To provide a method for fixing a lamp glass which has excellent heat resistance and is strong against vibration impact and in which no leakage of vapor, oil mist, etc., occurs. CONSTITUTION:A punched part 5 for constituting a radio wave shielding mechanism is formed in a protruding state to impart elasticity, and a lamp glass 6 is provided to a glass mounting plate 10. With the structure, a lamp glass 6 is pressed to the plate 10 by elastic force of the punched part to be sealed. Thus, leakage of vapor, oil mist is prevented and the glass 6 can be effectively fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high frequency heating apparatus, and more particularly to a structure for fixing a lamp glass mounted on a window for illuminating the inside of a heating chamber.

[0002]

2. Description of the Related Art A high frequency heating apparatus of this type is shown in FIG.

In FIG. 4, reference numeral 1 is a main body of the high frequency heating apparatus,
Reference numeral 2 is a heating chamber for cooking food, 3 is an illumination window for illuminating the inside of the heating chamber with an illumination lamp 9, and 4 is a door attached to the front of the heating chamber 2 so as to be openable and closable.

In the structure shown in FIG. 4, the lamp glass 6 mounted on the window for illuminating the heating chamber is fixed to the steel plate (5a) having a large number of small holes by punching provided in order to prevent radio wave leakage as shown in FIG. (A cross-sectional view of FIG. 2), a silicon putty 12 is applied and fixed around the lamp glass 6,
A configuration was used in which a preformed silicone rubber packing was wrapped around glass and then fixed with another metal fitting.

[0005]

However, in the above-mentioned structure, when the heater is provided in the same heating chamber, the temperature of the lamp glass portion exceeds the heat resistant temperature of the silicon packing, and the silicon is not used with the passage of time. The packing deteriorates due to heat, the lamp glass is loosely fixed, the lamp glass breaks due to vibration, and a gap is created between the lamp glass and the mounting plate, causing steam and oil smoke to leak out of the heating chamber. was there. Further, since silicon putty and silicone packing are used, there is a problem that workability is poor, assembly takes time, and cost is high.

The present invention solves the above-mentioned conventional problems, has a simple and inexpensive structure, and has no problem of heat resistance.
It is an object of the present invention to provide a lamp glass fixing structure in which the lamp glass is not broken even when vibrated, and steam, oil smoke, etc. do not leak outside the heating chamber.

[0007]

In order to achieve the above object, the high frequency heating apparatus of the present invention has the following constitution.

That is, a heating chamber for containing food, a door openably and closably attached to the heating chamber, a high frequency oscillator for supplying high frequency to the heating chamber, an illumination lamp for illuminating the heating chamber, An illumination window provided on the wall surface of the heating chamber corresponding to an illumination lamp, the window for illumination being provided integrally with the wall surface of the heating chamber and having a resilient radio wave shielding mechanism section, and glass mounting. A plate and a lamp glass elastically mounted between the radio wave shield mechanism and the glass mounting plate are provided.

Further, a heating chamber for storing food, a door openably and closably attached to the heating chamber, a high-frequency oscillator for supplying a high frequency to the heating chamber, an illumination lamp for illuminating the heating chamber, An illumination window provided on the wall surface of the heating chamber corresponding to an illumination lamp, wherein the window for illumination is a radio wave shielding mechanism unit integrally provided on the wall surface of the heating chamber, a glass mounting plate, and the radio wave shielding. The lamp glass is mounted between the mechanism portion and the glass mounting plate via an elastic body.

[0010]

According to the present invention, since the lamp glass is elastically attached to the wall surface of the heating chamber by the above structure, even if the lamp glass expands or contracts due to vibration or temperature change, the elastic force of the radio wave shielding mechanism or the radio wave shielding mechanism and the glass mounting plate. The lamp glass is press-fitted to the mounting plate with good adhesion by the elastic force of the elastic body interposed between the lamp glass and the lamp glass.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A high frequency heating apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 3 is a view showing a case where the cover of the high frequency heating device is removed. As shown in the figure, the heating chamber 2
A high frequency oscillating device 7, a heater 8 above the heating chamber, an oven lamp 9 as illumination on the illumination window 3 on the left wall surface 2a of the heating chamber, a punching plate 5 having elasticity, and the illumination window. A lamp glass 6 mounted so as to cover it, and a mounting plate 1 for mounting the lamp glass
0, a glass retainer 1 for fixing the lamp glass 6
1 and the illumination window 3 provided with 1.

As shown in FIG. 1 (cross-sectional view in the lateral direction), in this embodiment, the illumination window 3 has a resilient punching portion 5 as a radio wave shielding mechanism portion, and a front surface of the punching portion is covered. There is the mounted lamp glass 6, and the punching plate 5 has elasticity to prevent the lamp glass 6 from breaking due to vibration.

The illuminating window 3 must allow the light of the illuminating lamp 9 to pass through well and prevent leakage of electric waves and steam and oil smoke generated during heating. Therefore, the illumination window is composed of the radio wave shielding mechanism and the lamp glass. The radio wave shielding mechanism section is composed of a punching section in which a large number of small holes are formed by punching which is an ordinary radio wave shielding means. This ensures transmission of light and prevents leakage of radio waves. Further, by using the lamp glass 6, leakage of steam and oil smoke is prevented.

The feature of the present invention is that the punching portion 5 has a convex shape, and the convex portion presses the lamp glass 6 to attach it to the mounting plate 10.

As a method of providing the punching portion 5, a convex portion may be provided by drawing in the processing step of providing the heating chamber 2 by using a steel plate having a punching hole provided in a portion corresponding to the illumination window in advance, or the punching hole may be provided in advance. It is also possible to provide a convex portion on the plate provided with and to attach it to the illumination window 3 portion of the heating chamber 2 by welding or the like.

FIG. 2 shows an example of attaching the lamp glass 6 to the illumination window 3. As shown in the figure, the lamp glass 6 is attached to the mounting plate 10 mounted on the side surface of the heating chamber by spot welding or the like, and the lamp glass 6 is attached by the glass holder 11.
The side slip (slip toward the wall in the closing direction) was pressed.

In the above embodiment, the lamp glass 6 is fixed to the mounting plate 10 by the elastic force of the punching portion 5 having a convex shape. However, in addition to this, the punching portion forming the radio wave shielding mechanism portion and the lamp glass 6 are shown. Even if an elastic body such as a leaf spring is interposed between the lamp glass 6 and the lamp glass 6 and the lamp glass 6 is fixed to the mounting plate 10, the same effect as in the previous embodiment can be obtained.

[0019]

As described above, according to the high frequency heating apparatus of the present invention, the following effects can be obtained.

(1) By adopting a structure in which no silicon packing is used around the lamp glass, there is no problem even if an illumination window is provided at a high temperature, and the range of places where the illumination window can be provided is widened. It was

(2) By adopting the elastic wave shielding mechanism or the elastic body interposed, the adhesion between the lamp glass and punching is improved, and there is no fear that the lamp glass will be broken by vibration.

(3) By adopting an elastic radio wave shielding mechanism section construction, the adhesion between the lamp glass and the mounting plate is improved, and since the gap is eliminated, steam outside the heating chamber,
There is no oil smoke leakage and there is no worry of lighting contamination.

[Brief description of drawings]

FIG. 1 is a side sectional view of a main part of a high-frequency heating device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the high-frequency heating device.

FIG. 3 is a schematic front view of a main part of the high-frequency heating device.

[Fig. 4] External view of high-frequency heating device

FIG. 5 is a side sectional view of a main part of a conventional high-frequency heating device.

[Explanation of symbols]

 2 Heating room 3 Lighting window 4 Door 5 Punching part 6 Lamp glass 7 High frequency oscillator 9 Lighting lamp 10 Mounting plate 11 Glass holder

Claims (2)

[Claims] 1. A heating chamber for accommodating food, a door openably and closably attached to the heating chamber, a high frequency oscillator for supplying a high frequency to the heating chamber, an illumination lamp for illuminating the heating chamber, An illumination window provided on the wall surface of the heating chamber corresponding to an illumination lamp, the window for illumination being provided integrally with the wall surface of the heating chamber and having a resilient radio wave shielding mechanism section, and glass mounting. A high-frequency heating device having a plate, and a lamp glass elastically mounted between the radio wave shielding mechanism section and the glass mounting plate. 2. A heating chamber for accommodating food, a door openably and closably attached to the heating chamber, a high frequency oscillating device for supplying high frequency to the heating chamber, an illumination lamp for illuminating the heating chamber, An illumination window provided on the wall surface of the heating chamber corresponding to an illumination lamp, wherein the window for illumination is a radio wave shielding mechanism unit integrally provided on the wall surface of the heating chamber, a glass mounting plate, and the radio wave shielding. A high-frequency heating device having a structure including a lamp glass mounted between a mechanism portion and the glass mounting plate via an elastic body.