JPH03194882A - Electromagnetic induction cooker - Google Patents

Abstract

PURPOSE:To simplify handling and expand a use range of a cooking pot by using an electromagnet or a permanent magnet for a junction means joining the cooking pot with a placing means for performing magnetic junction. CONSTITUTION:An electromagnet 30 for junction is provided opposing a cooking pot, into which cooking materials are to be put, is provided through a rotary table 21. When a switch for junction is turned on after the cooking pot 7 on the rotary table 21, a coil 31 of the electromagnet 30 is excited to generate electromagnetic force, the generated electromagnetic force acts on the cooking pot 7 through the rotary table 21 and the this electromagnetic force atracts the cooking pot 7 in the direction of the electromagnet 30 to bring it in a state of being electromagnetically joined the rotary table 21. Thereby, the cooking pot 7 can be set and taken off by switching operation thus to extremely facilitate handling as well as to expand a use range of the cooking pot.

Description

[Detailed Description of the Invention] [Industrial Application Field] As is well known, some electric cooking utensils use heat generated by metal wires such as nickel-chrome steel with high resistance as a heat source. In addition to electric cookers, there are electromagnetic cookers that use Joule heat produced by electromagnetic induction to cook ingredients. An electromagnetic cooking machine has the feature that cooking can be carried out safely and cleanly because the cooking machine itself does not generate heat.

The present invention relates to an improvement in a rotary electromagnetic cooking machine that cooks cooking ingredients such as rice and vegetables while automatically stirring them by rotating a cooking pot that is heated by electromagnetic induction.

[Prior Art] As a conventional electromagnetic cooking machine of this type, for example, Japanese Patent Application Laid-Open No. 1983-
The configuration of the device described in Japanese Patent No. 175375 is shown in FIG.

In Fig. 2, 1 is the main body of the cooking machine, 2 is the cooking container, and 3
is a hinge. Reference numeral 4 denotes a support member, which consists of a bottle 4a and first and second support levers 4b and 4C. 5 is a heat insulating material, 6 is an induction heating coil, 7 is a cooking pot, 8 is a drive mechanism, and 9 is its rotating shaft. The drive mechanism 8 is attached to the inner surface of the cooking container 2, and the cooking pot 7 is fixed to the tip of the rotating shaft 9.

Also, 10 is a lid, 11 is a small lid, 12 is a flange of the cooking pot 7, 13 is a slip ring, 14 is a cooking material, 15 and 1
6. Control unit for controlling rotation speed, heating temperature, heating time, etc.

In the conventional electromagnetic cooking machine having such a configuration, stir-frying is performed in the following manner. While rotating the cooking pot 7 via the drive mechanism 8, the induction heating coil 6 is energized to heat its outer circumference. After heating cooking pot 7, add oil. Cooking ingredients 14 are added to the cooking pot 7 at a point where the oil is evenly coated inside the cooking pot 7, and the top of the cooking pot 7 is quickly covered with a lid 10. Next, when the cooking pot 7 is kept heated and rotated by the drive mechanism 8, the cooking material 14 is cooked! 17
It begins to stir-fry in oil while being heated and stirred inside. When the time is right, the small lid 11 is removed and seasonings are added, and if necessary, the cooking pot 7 is tilted using the support member 4 so that the cooking material 14 comes into contact with the inner side of the cooking pot 7. By continuing to heat and rotate the cooking pot 7, the stir-fried dish using the cooking material I4 is automatically completed.

[Problems to be Solved by the Invention] In the conventional electromagnetic cooking machine, the drive mechanism 8 is attached to the inner surface of the cooking container 2, as described above. And cooking materials 1
A cooking pot 7 into which 4 is placed is fixed to the tip of a rotating shaft 9 of a drive mechanism 8. Therefore, the cooking pot 7 cannot be removed when cooking is finished. This not only makes handling extremely inconvenient, but also causes hygiene problems due to inadequate cleaning. If the cooking pot 7 were configured to be detachably attached to the rotating shaft 9 in order to eliminate harmful effects such as unsanitary conditions, the cooking pot 7 to be used would be specified. Moreover, since the connecting member is added to the parts, the structure becomes complicated and the manufacturing cost increases accordingly.

The present invention was made in order to solve the problems of the conventional device as described above, and is convenient to handle.Moreover, the cooking pot to be used does not have to be specified, and the range of uses of the cooking pot can be expanded. This is an attempt to realize an electromagnetic cooking machine.

[Means for Solving the Problems] The present invention is an electromagnetic cooking machine in which a coupling electromagnet is provided opposite a cooking pot into which cooking ingredients are placed via a rotary table.

[Operation] When the cooking pot is placed on the rotary table and the coupling switch is turned on, the electromagnetic coil is excited and electromagnetic force is generated. The generated electromagnetic force acts on the cooking pot via the rotary table, and the cooking pot is attracted toward the electromagnet and becomes electromagnetically coupled to the rotary table. Here, when the drive motor is rotated, the cooking pot rotates together with the rotary table. When the coupling switch is turned off, the electric power of the electromagnet is released and the cooking pot is separated from the rotary table.

Embodiments of the Invention] FIG. 1 is a diagram illustrating the basic configuration of an embodiment of the present invention. In FIG. 1, the same or corresponding parts as those in FIG. 2 are denoted by the same reference numerals, and some parts overlap, but will be explained in more detail here.

In FIG. 1, 21 is a rotary table, 22 is a roller that comes into frictional contact with the outer periphery of this rotary table 21, and 23 is a motor with the roller 22 attached to an output shaft 24.

The rotary table 2I is made of a non-magnetic material with low thermal conductivity, such as ceramics, and its center is rotatably supported by a cooking container (not shown).

30 is an electromagnet consisting of a coil 31 and an iron core 32. 6 is an induction heating coil similar to that shown in FIG. 2, 7 is a cooking pot, and 14 is a cooking material. A magnetic material is used for the cooking pot 7, and an iron-based metal material containing manganese and having high magnetic permeability is particularly suitable.

A cooking operation using the apparatus of the present invention having such a configuration will be explained using cooking of fried rice as an example. When the cooking pot 7 whose interior has been dried after cleaning is placed on the rotary table 21 and a coupling switch (not shown) is turned on, the coil 31 of the electromagnet 30 is energized. When the electromagnet 30 is energized, an electromagnetic force acts to draw the cooking pot 7 downward, and the bottom of the cooking pot 7 is brought into pressure contact with the rotary table 21 and electromagnetically coupled.

On the other hand, when a high frequency excitation current of about 20 to 50 KHz is applied to the induction heating coil 6 after the cooking pot 7 is set, an alternating current is generated inside the cooking #S7 in the magnetic field via the rotary table 21 due to electromagnetic induction. Eddy currents flow and Joule heat is generated. As a result, the heat generated by electromagnetic induction begins to rapidly heat the cooking pot 7. When the cooking pot 7 is heated, pour an appropriate amount of cooking oil and turn the motor 2 on.
Rotate 3 to distribute it on the inside. Once the oil is evenly distributed, add the meat and vegetable ingredients, then add the pre-cooked rice. If you add the seasonings and continue heating and rotating for a certain period of time, the rice and ingredients will mix properly and you'll have a delicious char! 1 will be completed automatically.

When cooking is finished, the induction heating coil 6 and the coupling switch are turned off to stop heating the cooking pot 7 by the induction heating coil 6 and release the electromagnetic force of the electromagnet 30. The cooking pot 7 is taken down from the rotary table 21, carried to the dining table, the finished fried rice is served, and the meal begins. Cooking pot 7 filled with contents and empty
They are then soaked in water stored in the kitchen sink for cleaning.

In addition, in the above-mentioned embodiment, the rotary table 21 is horizontally rotated by the friction of the rollers 22, but the driving means is not limited to the friction of the rollers 22.
The present invention can also be applied to a case where the rotary table 21 is tilted so that its angle can be adjusted. Further, although the cooking pot 7 without a lid has been illustrated and described, a lid may be provided, and in short, any coupling means of the cooking pot may be provided with an electromagnet or a permanent magnet for magnetic coupling. In this case, the permanent magnet can be configured to use a lever, a ball screw, or the like to change the distance between the permanent magnet and the cooking pot 7 to adjust the bonding force. In addition, the induction heating coil 6 and electromagnet 3 are shown in the drawing.
Although the case where 0 is separate is shown, both may be configured integrally.

[Effects of the Invention] The present invention comprises an electromagnetic cooking machine in which a coupling electromagnet or permanent magnet is provided facing a cooking pot via a rotary table. When the cooking pot is placed on the rotating table and a switch or lever is operated, the cooking pot is magnetically coupled to the rotating table by the magnetic force of an electromagnet or the like. Furthermore, when the coupling switch is turned off, the magnetic force is released and the cooking pot is separated from the rotary table.

Therefore, the cooking pot can be set or removed by operating a switch, etc., making it extremely convenient to handle.Also, unlike conventional devices, it is not connected by a connecting means,
There is no specific cooking pot, and any commonly used iron-based material can be used, regardless of size.

Therefore, according to the present invention, it is possible to provide an electromagnetic cooking machine that is convenient to handle and has a wide cooking pot range.

[Brief explanation of drawings]

FIG. 1 is a diagram illustrating the basic configuration of an embodiment of the present invention, and FIG. 2 is a diagram illustrating the configuration of a conventional device. In the figure, 1 is the main body of the cooking machine, 2C is the cooking container, 3 is the hinge, 4 is the support member, 4a is the bottle, 4blt is the first support lever, 4C is the second support/<-5f is the insulation material, 6
1 is an induction heating coil, 7 is a cooking pot, 81 is a drive mechanism, 9 is a rotating shaft, IO is a lid, 11 is a small lid, 124 is a flange, 1
3 is a pickpocket ring, 14 (cooking agent), 15 and 16 are adjustment parts, 21 is a rotary table, 22 is a roller, 2
3 is a motor, 24 is an output shaft, 30 is an electromagnet, 31 is a coil, and 32 is an iron core. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] Induction heating means for inductively heating a cooking pot containing cooking ingredients; mounting means for placing the cooking pot; and a method for placing the cooking pot placed on the mounting means on the mounting means. a coupling means for coupling to;
an electromagnetic cooking machine comprising: rotational drive means for integrally rotating the cooking pot coupled to the mounting means by the coupling means via the mounting means, the coupling means coupling the cooking pot to the mounting means; An electromagnetic cooking machine characterized by magnetic coupling using an electromagnet or a permanent magnet.