JPS5823717B2 - High frequency heating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-frequency heating device, and more particularly to a high-frequency heating device equipped with a so-called turntable that rotates cooked food to eliminate uneven heating during cooking. The purpose of the present invention is to improve the rotation transmission mechanism that transmits the rotational driving force of the motor to the mounting base, and to make it easier to attach and remove the rotating mounting base, which is removably installed on the inner bottom surface of the heating chamber, and to clean the heating chamber. This is the purpose.

Conventionally, a rotation transmission mechanism transmits the rotational driving force of a motor to a rotating mounting table of a high-frequency heating device equipped with a so-called turntable, which rotates the food four times during cooking to eliminate uneven heating. The structure is such that the transmission is transmitted to the rotary mounting table via a speed reduction mechanism and a rotary shaft that is rotatably supported by penetrating the bottom surface of the heating chamber, and the connection between the rotary shaft and the rotary mounting table is made by locking the rotary shaft. This was done by fitting the locking hole of the rotary mounting table into the part.

Therefore, if the heating chamber of the high-frequency heating device becomes dirty with food particles, etc., the rotary mounting table must be removed from the heating chamber. It is a cumbersome operation to disconnect the rotating shaft and take it out from the heating chamber in that state, and it is also very difficult to take it out if the rotating mounting table is large.

Moreover, even when cleaning the inside of the heating chamber, cleaning is difficult because the rotating shaft protrudes from the inner bottom of the heating chamber, and a support body supporting the rotating mounting table is placed around it. In addition, even if cleaned, it was not possible to remove food debris that had gotten into the parts where the rotating shaft and support were installed, leading to a decline in the commercial value of the high-frequency heating device as a clean cooker. .

Therefore, a high-frequency heating device that uses magnetic coupling means in the rotation transmission mechanism that transmits the rotational driving force of the motor to the rotation mounting table has recently been developed. A gear is installed between the bottom of the heating chamber and the bottom of the outer casing of the main unit, and is rotatable around a support shaft placed on the bottom of the outer casing of the main unit, and has magnets arranged concentrically.
Further, a recess is provided in the inner bottom surface of the heating chamber so that the inner bottom surface of the heating chamber and the rotary mounting table are on the same plane, and the recess is provided with a magnetic shield and is magnetically coupled to the magnet by an attractive force. The rotary mounting table houses a rotatable rotary mounting table provided with a magnet, and by rotating the gear with a motor, the rotary mounting table is rotated to follow the gear.

In other words, when such a magnetic coupling means is used in the rotation transmission mechanism, the rotation shaft of the deceleration mechanism that transmits the rotational driving force of the motor to the rotation mounting table does not protrude from the inner bottom surface of the heating chamber. The above-mentioned high-frequency heating device equipped with a rotation transmission mechanism supports the periphery of the rotating mounting table using a support body with wheels installed around the rotating mounting table. Because there is nothing planted in the heating chamber, you can easily clean it by taking the rotary mounting table out of the heating chamber.Furthermore, when you take the rotary mounting table out of the heating chamber, you can just pull it out. Good and easy to take out.

Note that in order to prevent disturbance of the electric field in the heating chamber due to the magnet disposed on the rotating mounting table and to obtain the required rotational torque for the rotating mounting table, a magnet with a small magnetic force is used as the magnet, and The rotary mounting table 4 is constructed to be as light as possible and yet have a certain degree of strength, but conventional rotary mounting tables have a structure on the back side of a metal disc made of stainless steel or the like.
It was constructed by arranging a magnet with an upward magnetic shield and a support that rotatably supported the rotary mounting table.

Therefore, in this case, there is a risk that the user may be injured by the edges of the outer periphery of the upper plate of the rotating mounting table when installing or removing the rotating mounting table, and there is also a risk of sparks occurring between the rotating mounting table and the peripheral wall of the recess in the heating chamber. There was a problem in that it was easy for this to occur.

The present invention solves such problems, and will be described below with reference to the drawings of FIGS. 1 and 2 showing one embodiment of the present invention.

In the figure, 1 is a high-frequency heating device main body, and this high-frequency heating device main body 1 has a built-in heating chamber 2 for storing an object to be heated, and a microwave generator 3 for supplying microwaves into this heating chamber 2. .

A door 4 is attached to the front opening of the heating chamber 2 so as to be openable and closable, and a screen 5 and a handle 6 are attached to the door 4 for viewing the heating state of the object to be heated in the heating chamber 2. ing.

Reference numeral 7 denotes an operation panel disposed on the front surface of the high-frequency heating apparatus main body 1, and knobs of a control section for controlling the microwave generator 3 are disposed on the operation panel 7.

Reference numeral 8 denotes a rotary mounting table which is detachably and rotatably disposed in a recess 9 provided on the inner bottom surface of the heating chamber 2, and a shield plate 10 such as an aluminum plate is provided on the back side of the rotary mounting table 8. A magnet 12 is magnetically shielded and held in a storage container 11, and a bent edge 8a bent inward is provided on the peripheral edge of the upper plate.

Reference numeral 13 denotes an annular support body that rotatably supports the rotary mounting table 8, and this support body 13 includes a ring body 13a and a ring body 13a.
The support body 13 is configured to utilize the rolling friction of the wheels 13b, so that the support body 13 is configured to utilize the rolling friction of the wheels 13b. The load of the food being placed acts only on said wheel 10b.

Further, the support body 13 is detachably held on the back surface of the rotary mounting table 8 by a pull-out stopper 14 protruding outward from the side surface of the storage container 11, and the bent edge of the rotary mounting table 8 At 8a, the wheels 13b of the support body 13 are connected to the ring body 13.
It is regulated so that it does not deviate from a.

Reference numeral 15 denotes a rotary body rotatably supported by a support shaft 16 fixed by welding to the approximate center of the outer bottom wall of the recess 9 of the heating chamber 2. A magnet 17 that is magnetically coupled to the magnet 12 attached to the stand 8 by an attractive force, and wheels 18 that support the periphery of the rotating body 15 are provided.

Reference numeral 19 denotes a motor for rotating the rotary body 15, and a pulley 20 is fixed to the rotating shaft of the motor 19, and the pulley 20 and the rotary body 15 are connected by a belt 21 so as to transmit power. 23 is a stirrer fan for stirring the microwave radio waves supplied from the microwave generator 3, and a partition plate 23 for making the stirrer fan 22 invisible from the outside.

In the above configuration, by rotating the motor 19, the rotational driving force is transmitted to the rotating body 15 via the belt 21.
The rotating body 15 rotates around the support shaft 16.

As the rotating body 15 rotates, the magnet 17 disposed on the rotating body 15 also rotates, and thereby the magnet 12 coupled to the magnet 17 by magnetic attraction force also rotates in the same direction.

That is, the rotating mounting table 8 rotates in the same direction as the rotating body 15.

Here, since the high-frequency heating device of the present invention is provided with a bent edge 8a that is bent inward on the peripheral edge of the upper plate of the rotary mounting table 8, the user may be injured when attaching or removing the rotary mounting table 8. There is little risk of

In addition, the peripheral edge of the upper plate of the rotary mounting table 8 is attached to the peripheral wall surface of the recess 9 of the heating chamber 2, so that even if it collides with the peripheral wall surface of the recess 9 of the heating chamber 2, the peripheral wall surface of the recess 9 of the heating chamber 2 will not be damaged and will remain beautiful forever. Moreover, sparks are less likely to be generated between the peripheral edge of the upper plate of the rotary mounting table 8 and the peripheral wall surface of the recess 9.

Furthermore, by providing the bent edge 8a on the peripheral edge of the upper plate of the rotary mounting table 8, the flatness of the upper plate of the rotary mounting table 8 is improved.
The rotary mounting table 8 can be rotated smoothly, the storage tray can also be stably mounted, and the strength of the upper plate of the rotary mounting table 8 can also be improved.

In this embodiment, since the bent edge 8a prevents the wheels 13b of the support 13 that rotatably supports the rotary mounting table 8 from coming off in the outward direction, the rotary mounting table 8 is heated. If the support body 13 is taken out from the chamber 2 and removed from the rotary mounting table 8, the wheel 13b can be removed from the annular body 13a of the support body 13, and the wheel 13b can be easily and easily replaced when the wheel 13b becomes worn. can be done.

As described above, the high-frequency heating device of the present invention includes a metal rotary mounting table that is detachable and rotatably housed in a recess provided on the inner bottom surface of a heating chamber, and a magnetic coupling means with this rotary mounting table. It consists of a rotating body that is connected through the heating chamber and rotatably disposed on the outer bottom of the heating chamber, and a drive source that rotationally drives this rotating body. Since it is equipped with a bending edge that can be bent at the same time, it is easy to install and take out the rotary mounting table, and to clean the heating chamber. There is no risk of damage or damage to the walls of the heating chamber, so it can be kept beautiful forever, and the generation of sparks can be reduced.

In addition, the flatness of the rotating mounting table is improved, allowing the rotating mounting table to rotate smoothly, the storage tray to be placed stably, and the strength of the rotating mounting table to be improved. It has very good effects.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of a high-frequency heating device according to an embodiment of the present invention, and FIG. 2 is a sectional view showing the internal structure of the device. 1...High frequency heating device, 2...Heating chamber, 3...Microwave generator, 8...
Rotating mounting table, 8a...Bending edge, 9...
Recess, 12, 17... Magnet, 13...
Support body, 13b...Wheel, 15...Rotating body, 19...Motor.

Claims (1)

[Claims] 1. A metal rotary mounting table that is detachably and rotatably housed in four parts provided on the inner bottom surface of the heating chamber, and a metal rotary mounting table that is connected to this rotary mounting table via magnetic coupling means and that is connected to the outside of the heating chamber. It consists of a rotary body rotatably disposed at the bottom and a drive source that rotates the rotary body, and the rotary mounting table is removably attached to this rotary mounting table, and a force wheel is attached to the rotary mounting table. A high-frequency heating device is rotatably supported by a support having a rotary mounting table, and a bent edge provided on a peripheral edge of an upper plate of the rotary mounting table prevents the support from coming off in an outward direction.