JPS58220387A - High frequency heater - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a so-called turntable type high frequency heating device in which a mounting table is rotatably installed in a heating chamber.

The so-called turntable method, which rotates the heated object mounting table, is said to have good uniform heating characteristics and is widely used, but generally, as shown in Figure 1, a drive shaft 1 that penetrates the bottom wall of the heating chamber is used. Therefore, a method of transmitting the rotational torque of the motor 3 to the saucer 2 is implemented.2.The drive shaft 1 may become a hindrance to cleaning, or the cooking liquid may pass through the hole 4 passing through the drive shaft cloth and reach the motor 3. There were drawbacks such as causing flow failures.

Therefore, in order to eliminate the above-mentioned drawbacks, a torque transmission method using magnetic force as shown in FIG. The holder 6 for holding and the rotary mounting table 8 for holding the torque transmitting magnet 7 and placing the tray 2 on it are separate, which makes the device expensive. In addition, since the heat of the saucer 2 comes into direct contact with the rotary mounting table 8, assuming that a burner is used on the upper part of the saucer, the coating of the rotary mounting table 8 must be extremely heat resistant, and is usually painted. Unnecessary stainless steel and other materials were used, resulting in high costs. Furthermore, there is a stainless steel rotary mounting table 8 and a saucer 2.
Because of the contact, the surface of the rotary mounting table 8 is damaged by the receiving tray 2, resulting in an unsightly appearance.

Next, solve the drawbacks of the conventional example shown in Figures 1 and 2.
The structure shown in FIG. 3 has been proposed as a device for erasing the light.

However, if the holder 6 that holds the roller 5, mouth 6, and magnet 7 is made of resin, the coefficient of friction between the holder 6 and the roller 5 may be large, or the magnet 7 may have to be protected from radio waves. Since the metal plate is a non-magnetic metal and the holder 6 is made of resin, the magnetic field reaches directly into the heating chamber, which may adversely affect the watch.

SUMMARY OF THE INVENTION Therefore, the present invention aims to eliminate such drawbacks and provide a high-frequency heating device using a heated object mounting table type, which is inexpensive and easy to use.

Hereinafter, one embodiment of the present invention will be described based on the attached circular.

In FIG. 4, reference numeral 9 denotes a main body of the high-frequency heating device, and 10 a heating chamber provided within the main body 9. At least the bottom plate portion thereof is made of non-magnetic metal. 11 is a door that opens and closes the front opening of the heating chamber 10, and 12 is a magnetron that supplies high-frequency energy into the heating chamber 1o, which is installed on two sides of the heating chamber 10. The stirrer blades 14 are rotatably provided to reduce uneven heating inside the heating chamber 10, and the partition plate 16 that partitions the heating section and the mounting portion of the stirrer blades 3 is an aluminized steel plate or the like that is rotatably installed at the inner bottom of the heating chamber 10. Rotating body made of magnetic metal with painted surface
, and the lower surface has a holding moon 16 made of non-magnetic metal.
Equipped with a permanent magnet 17 and equipped with a permanent magnet 17 on the outer periphery.
A roller 18 made of a dielectric material with a low coefficient of friction and low loss, such as Teflon, is connected to a metal pin 19.
0 20 is a tray made of an inorganic material such as ceramics or glass that stores the food 21 and is placed on the upper surface of the roller 18. In order to determine the center of rotation, the convex portion 22 rotates around the roller 18. It is provided at a position that is in contact with the inner diameter. 23 is a rotating body that also serves as a pulley and is rotatably mounted on a shaft 24 fixed at the center of the bottom surface outside the heating chamber.A rotating body 23 is equipped with a driving magnet 26 on the top surface corresponding to the permanent magnet 17, and a rotary body 23 is rotatably mounted on a shaft 24 fixed at the center of the bottom surface outside the heating chamber. Equipped with a contacting roller 26. 27 is a pulley 28 and a belt 29
A motor that rotationally drives the rotating body 15 via the 6 pages! It is.

In the configuration of -1- below, the magnet 17 provided on the rotating body 15
The magnets 25 provided on the pulley 23 have different facing poles so as to attract them, and when the pulley 23 with the drive magnet 26 rotates, the magnet 25 will attract 1! Therefore, the rotating body 16 having the permanent magnet 17 rotates. Along with this, roller 1
8 rotates, and as a result, the saucer 20 rotates twice as many times as the pulley 23.

As described above, this embodiment has the following effects.

(1) Since there are no holes or holes on the bottom of the heating chamber, there are no problems with radio wave leakage or boiling liquid spilling, and cleaning is very easy.

(2) Since the rotating body and pin supporting the roller are made of metal and the roller is made of dielectric material, the coefficient of friction is reduced and there is no need to worry about sparks.

(3) By constructing the rotating body from a magnetic metal, it is easy to protect the magnet from radio waves, and it is also easy to prevent unnecessary magnetic leakage into the heating chamber.

(4) Since the rotating body and the saucer do not rotate synchronously, it is possible to create a stirrer effect and obtain a more complete distribution by making the rotating body uneven or partially punching holes.

(6) No need for a special stand to place the saucer, large size 1]
It is possible to reduce costs.

[Brief explanation of the drawing]

1, 2, and 3 are sectional views of a conventional high-frequency heating device, and FIG. 4 is a side sectional view of a high-frequency heating device showing an embodiment of the present invention. 9... High frequency heating device main body, 1o...
Heating chamber, 12... Magnetron, 15...
...Rotating body, 17...Permanent magnet, 18...
...Roller, 19...Pin, 20...
Saucer, 23...Pulley, 26...Driving magnet.

Claims (1)

[Claims] A rotating body that rotates close to the outer bottom surface of the heating chamber and has a driving magnet, and a rotating body that has a permanent magnet coupled to the driving magnet, a saucer, and four supporting rollers on the inner bottom surface of the heating chamber. , wherein the roller is made of resin with low dielectric loss, and the rotating body and roller support pin on the inner bottom of the heating chamber are made of metal.