JPS5856489Y2 - High frequency heating device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a bundle latch mechanism that is equipped with a heater in a heating chamber and that operates a latch switch that controls the generation of high frequency waves in a high frequency heating device that functions as an electric oven. It has sufficient heat resistance and can operate reliably even when the room becomes high temperature.
Moreover, compared to conventional door screen sections, it provides a wider field of view and provides superior features in terms of safety, durability, and ease of use.

As shown in Figs. 1 and 2, the conventional high-frequency heating device door bundle latch mechanism operates the mechanism inside the door 1 by operating the bundle 2 on the front side of the door 1, which is provided on the opening surface of the heating chamber so that it can be opened and closed. The key lever 3 moves in the final stage (not shown in conjunction), and the door key 4 sinks into the door 1.

This activates the latch switch that controls the generation of high frequencies, and the generation of high frequencies is stopped.

In the case of a high-frequency heating device having such a bundle latch mechanism, when the heater installed inside the heating chamber is energized and used as an electric oven, the temperature of the heating chamber reaches approximately 250 degrees Celsius, and at this time, the temperature of the heating chamber reaches approximately 250 degrees Celsius. The temperature is about 150°C.

For this reason, heat resistance is required for the parts that make up the bundle latch mechanism, which limits the materials that can be used, and there are also problems with durability under high temperature conditions, making it extremely difficult to realize a high-frequency heating device equipped with a heater. It was difficult and quite expensive.

Therefore, the present invention solves the above-mentioned conventional drawbacks by a simple structure, and one embodiment of the present invention will be described below.

The bundle 2 of the door 1, which is provided on the front surface of the heating chamber so as to be openable and closable, has a substantially mouth-shaped frame body as shown in the figure, and rotates around a support shaft 5 inside the door 1.

6 is a spring for returning the bundle 1.

The door key 4 is slidably attached to a hole in a door key receiver 8 in a choke groove 7 on the periphery of the door 1, and is constantly exerted an outward force by a door key spring 9.

Between the bundle 2 and the door key 4 is a key lever 3 that moves around a key lever shaft 10.

This key lever 3 extends from the bundle 2 side into the door 1 using a key lever shaft 10 provided inside the bundle 2 side as a fulcrum, and the tip of the key lever 3 directly engages with the opening of the door key 4.

With the above configuration, when the bundle 2 is operated, the tip of the key lever presser 11 inside the handle 2 presses the key lever 3, and the tip of the key lever 3 accordingly moves the door key 4 up and down.

As explained above, the door key 4 installed in the choke groove 7 on the left and right sides of the door 1 is operated directly by the key lever 3 extending from the handle 2. There is no need for the actual space 12 for storing the mechanical part inside the door screen part 13.
The area of the heating chamber becomes very large, and the inside of the heating chamber can be clearly seen even when the door 1 is closed, making it easy to use and improving the design.

In the case of the present invention, the door screen part 1 for the opening surface of the heating chamber
The area ratio of 3 is approximately 30% larger than that of the conventional model.

Furthermore, by providing the door key 4 in the left and right choke grooves 7 of the door 1, the temperature rise in this area is about 30 to 40 degrees lower than that in the center, making heat-resistant design easier. Durability is also improved, and the effects of the present invention are very large.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a door portion showing a conventional example, Fig. 2 is a cross-sectional view of a portion of the door door, Fig. 3 is an overall perspective view of a high-frequency heating device showing an embodiment of the present invention, and Fig. 4 Figure 5 is an enlarged vertical cross-sectional view of the main part of the door opening, Figure 6 is an enlarged longitudinal cross-sectional view of the door opening, and
The figure is an enlarged sectional view of the main handle portion. 1...Door, 2...Handle, 4...
...Door key 6...Spring, 7...
Choke groove, 8...Key holder, 9...Key spring.

Claims (1)

[Scope of utility model registration request] A heating chamber, a magnetron that generates a high frequency wave in the heating chamber, a heater provided inside the heating chamber, and a door that is provided on an opening surface of the heating chamber so as to be openable and has a bundle, and the door has a bundle. A latch switch that controls the generation of high frequency waves is provided with a door key that is interlocked by the operation of the bundle in the radio wave attenuation grooves on both left and right sides of the door, and the key lever pivots around a key lever shaft provided inside the hat door. A high-frequency heating device configured to slide the door key using a key lever.