JPH0315096B2 - - Google Patents

Description

[Detailed description of the invention] Industrial applications The present invention relates to a high frequency heating device.

Conventional technology Conventional high-frequency heating devices generally have another exterior plate installed outside the heating chamber, and various electrical components are attached to the chassis between them, and the exterior plate is placed outside the exterior plate in the heating chamber or chassis. I was installing screws from there. In addition, in recent years, with the trend toward miniaturization, heating chambers with integral side walls have been created, where the side walls of the heating chamber also serve as exterior plates. It is similar to the one disclosed in Japanese Patent Application No. 59-101013 (see Japanese Patent Application Laid-open No. 60-245930), but the structure is such that electrical parts can be removed by removing screws from the outside of the exterior plate. Ta.

Problems to be Solved by the Invention However, such high-frequency heating devices are structured so that even people other than service personnel can easily identify and remove the screws. There are high-voltage parts inside the high-frequency heating device, which can even lead to electrocution if touched carelessly, so it is important to take the trouble of installing protective guard plates, etc., or installing switches that open the circuit if screws are removed. In addition, special screws were used so that they could only be removed using special tools. However, in either case, there were problems such as high costs and difficulty in achieving complete completion.

The present invention solves these conventional problems, and provides special service safety by simply using a mounting table for heated objects instead of blinding the mounting screws between the heating chamber and the electrical parts storage chamber. The purpose of the present invention is to provide a high-frequency heating device that guarantees complete safety without using a cover or the like, and only a service person will know that there are screws to be removed.

Means for Solving the Problems In order to achieve the above object, the high-frequency heating device of the present invention uses a device that blinds the mounting screws between the heating chamber and the electrical component storage chamber as a mounting table for the object to be heated, and from the heating guide side. When you look at it, the mounting table becomes a blind.
The configuration is such that the mounting screws are not visible.

Function: In the high-frequency heating device of the present invention, the mounting screws between the heating chamber and the electrical component storage chamber are covered by the mounting table for the heated object and cannot be seen, and only the service personnel who refer to the service text have to remove the screws. I don't understand. Therefore, general users do not have to touch high voltage parts such as high frequency oscillation circuits, making the device extremely safe.

Embodiment An embodiment of the present invention will be described below based on the drawings.

In FIG. 1, below the heating chamber 1 in the main body, there is an electrical component storage chamber (hereinafter referred to as the electrical chamber) 2 for storing electrical components, and the front opening of the heating chamber 1 is as shown in FIG. A door 3 is pivotally supported to open and close freely.
There is.

As shown in FIG. 2, the front surface of the electric room 2 is covered with an operation panel 4, and includes a knob 7 of a timer 6 for controlling the heating time of the object 5 to be heated. At the bottom of the door 3, there is a handle part 8, which is a part of the door 3 cut out. Inside the heating chamber 1, a mounting table 9 for placing an object to be heated 5 is arranged and sealed with a gasket 10 or the like. At the bottom of the mounting table 9, there is a magnetron 11.
is fixed to the lower surface 1a of the heating chamber 1 with screws 12 or the like.

In the space between the lower surface 1a on which the magnetron 11 is attached and the mounting table 9, there are an antenna part 11a of the magnetron 11 and a stirrer blade (hereinafter referred to as stirrer) 13 for stirring radio waves, and an electrical parts storage chamber 2 and a heating chamber. There is a mounting screw 14 for mounting 1.
Inside the electrical parts storage chamber 2, a power transformer 15 for high-frequency oscillation, a high-voltage condenser, a magnetron cooling fan motor, a door switch that responds to the opening and closing of the door, etc. are housed.

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

(1) Since the magnetron is directly attached to the heating chamber wall, there is no need for a waveguide, and the mounting table also serves to prevent damage to the antenna, so no extra parts are required and the number of parts is extremely small. It is a device that is more economical and can be mass-produced.

(2) The antenna stirrer of the magnetron is installed in the space under the mounting table, so there is no wasted space.
All the space above the mounting table can be effectively utilized in the heating chamber, and on the other hand, by setting the necessary heating chamber space, the dimensions above the mounting table can be reduced accordingly, making it more compact, and ultimately reducing the external dimensions of the product. can also be made smaller. Therefore, it can be made lightweight and compact.

(3) Since the mounting table inside the heating chamber is covered and the mounting screws between the heating chamber and the electrical room are not visible, no one other than the service technician who refers to the service text will know the existence of the mounting screws to be removed. Therefore, there is no need to touch high voltage parts such as high frequency oscillation circuits, making the device extremely safe.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a high-frequency heating device according to an embodiment of the present invention, and FIG. 2 is an external perspective view of the device. 1... Heating chamber, 2... Electrical parts storage room, 5...
Object to be heated, 9... Mounting table, 11... Magnetron, 13... Stirrer, 14... Mounting screw.

Claims (1)

[Claims] 1. A high-frequency heating device configured such that the mounting screws between the heating chamber and the electrical component storage chamber are covered by a mounting table for a heated object provided in the heating chamber.