JP6248282B2 - Stirring body, container with stirring function and heating stirring cooker - Google Patents

Description

  The present invention relates to a stirring body, a container with a stirring function, and a heating and stirring cooker for stirring a cooked product stored in a container to be heated. Specifically, the induction heating cooker mainly used in general households is related to the configuration of a stirring body, a container with a stirring function, and a heating stirring cooker that are arranged in the container and rotated by receiving a rotating magnetic field from the outside of the container. The present invention relates to a stirrer, a container with a stirring function, and a heated stirring cooker.

  2. Description of the Related Art Conventionally, there has been proposed a rotary cooking device that heats a pan placed on top by a magnetic field generated from a coil provided in an induction heating cooking device and rotates a rotating blade having a permanent magnet or a magnetized body. . (For example, refer to Patent Document 1).

  According to Patent Document 1, a rotary heating cooker that can be used in combination with other rotary cookers and that can be used in combination with other rotary cookers without periodically stirring with a rice scoop or the like, and that requires less storage space for equipment. FIG. 15 shows a conventional rotary heating cooker described in Patent Document 1, and a coil 4 divided into a plurality of parts connected to the inverter 3 is used as an output of the inverter 3. Correspondingly, a high frequency magnetic field, a low frequency magnetic field or a mixed magnetic field is generated, and a pan 5 made of a nonmagnetic metal having a rotating blade 7 having a permanent magnet 6 therein is placed on the upper part of the coil 4. Both the heating of the pan 5 and the rotation of the rotary blade 7 are performed.

JP-A-8-35664

  However, in the configuration in which a rotating magnetic field is applied from the outside of the pan 5 to rotate the rotating blade 7 put in the inside of the pan 5 in a non-contact manner, there is no need to provide a drive shaft for transmitting power through the pan, The bottom surface of the inside and outside of the pan 5 does not have any irregularities that hinder cooking, like a general pan, so it can be a great advantage in terms of usability with respect to a configuration in which a drive shaft for transmitting power is provided. is there. However, in such a configuration in which power is transmitted by applying a rotating magnetic field to the rotary blade 7 from the bottom side of the pan 5, the magnetic coupling degree generally decreases as the magnetic gap (gap length) increases. On the other hand, there is a wide magnetic gap between the coil 4 provided in the induction heating cooker and the permanent magnet 6 provided in the rotary blade 7 because the thickness of the placing plate on which the pan 5 is placed and the thickness of the pan 5 are present. Exists. In practice, this magnetic gap is about 5 mm to 15 mm, and is generated from the coil of the induction heating device in order to ensure a large rotational torque for stirring the food in the pan (for example, stewed curry for several dishes). A configuration in which the magnetic flux formed by the magnetic flux and the rotor blade is sufficiently linked is effective. In addition, since the rotor blades form blades for stirring the original food, there are space restrictions when the rotor blades are provided with a magnetic material, and it is necessary to increase the magnetic flux density in a limited space. For the rotor blade, it is necessary to use a strong permanent magnet of rare earth such as neodymium or samarium cobalt.

Here, a magnetic field acts on the rotor blade in a direction perpendicular to the rotational torque in addition to the magnetic field effective for the rotation that generates the rotational torque. In other words, because the rotating blades rotate while being pressed against the bottom of the pan by the magnetic field perpendicular to the rotating torque acting on the rotating blades, the rotating blades that contact and slide on the bottom of the pan become a heavy load and lose the rotating torque. become. In addition, the sliding portion on the inner surface of the pan may be damaged by long-term use. This is because, for example, in a configuration in which a motor is provided at the bottom of the pan and a rotating blade is attached to the rotating shaft of the motor to directly transmit power, it is possible to apply only an effective rotational torque, so that the rotating magnetic field is non-contact. This was a particular problem in stirring. For this reason, even if a surface treatment that reduces friction is applied to the inner surface of the pan, the surface treatment will be peeled off during long-term use of the pan, and the inner surface of the pan will be scratched. It was not satisfactory for use over time. Moreover, it has been difficult to achieve high torque agitation necessary for preventing scorching in cooking due to loss of rotational torque.

  The present invention solves the above-mentioned conventional problems, and it is necessary to provide a projecting portion such as a shaft that interferes with cooking on the inner and outer surfaces of the pan bottom as in the method of directly transmitting the power from the motor to the rotor blades. In addition, it is possible to realize high-torque agitation cooking by suppressing the loss of rotational torque due to friction between the stirrer and the inner surface of the pan and the occurrence of scratches and wear on the inner surface of the pan while applying a strong rotating magnetic field in non-contact power transmission It is an object of the present invention to provide a stirring body excellent in usability and a container with a stirring function, and further to provide a heating and stirring cooker using an induction heating cooker used in general households.

In order to solve the conventional problem, the stirring body of the present invention is:
A stirring body that is detachably arranged with respect to a container for storing the food to be cooked and that stirs the food to be cooked in the container,
When the stirrer is accommodated in the container, the permanent magnet is disposed facing the inner bottom of the container, and receives a rotating magnetic field from the outside,
A storage section for storing the permanent magnet;
A container abutting portion that abuts against the inner bottom of the container when the agitator is stored in the container;
A rotation support portion for rotatably supporting the storage portion in a stirring direction in a state where the container contact portion is in contact with the inner bottom of the container;
A support body formed in a cylindrical shape having a bottom above the container contact portion and the rotation support portion and covering the storage portion ;
The stirrer is connected to the storage unit via a rotating shaft and above the support, and is arranged outside the support and extends in the upward direction of the support and in the radial direction of the support. A blade portion for stirring the food to be cooked,
A rotating body having the blade portion, the permanent magnet, and the storage portion;
It is set as the structure provided with .

In order to solve the conventional problem, the container with a stirring function of the present invention is
A container that can store the food to be cooked and generates heat by receiving heat from the outside,
While being detachably arranged in the container, the stirring body for stirring the food to be cooked in the container is provided.

Furthermore, in order to solve the said conventional subject, the heating stirring cooker of this invention is the following.
A container that can store the food to be cooked and generates heat by receiving heat from the outside,
A placement section capable of placing the container;
A heating unit provided in the mounting unit for heating the container;
The container with a stirring function that is detachably arranged in the container and stirs the food to be cooked in the container;
With
A rotating magnetic field generating unit that is provided in the mounting unit and generates a rotating magnetic field for the permanent magnet in the storage unit;
It is set as the structure provided with.

  Thus, stirring torque with high torque can be realized while suppressing a loss of rotational torque due to friction between the rotating body of the stirring body and the inner surface of the container and generation of scratches and wear on the inner surface of the container while applying a strong rotating magnetic field.

  The heating and stirring cooker of the present invention is capable of stirring with high torque while suppressing the friction with the container at the time of rotation by the stirrer while heating the food put in the heating container. For example, curry for several dishes, etc. Even in a stewed cooking with a heavy load, it is possible to prevent scorching without periodically stirring with rice scoop. In addition, there is no support shaft or bearing protrusion on the inner surface of the container, and there is no need for special surface treatment, preventing damage and wear of the container due to friction between the stirring body and the inner surface of the container, and durability and usability It is possible to provide a stirrer, a container with a stirrer function, and a heated stir cooker.

FIG. 2 is a schematic cross-sectional view of a main part of a stirring body arranged in a container according to Embodiment 1 of the present invention. The top view which looked at the stirring body arrange | positioned at the container in Embodiment 1 of this invention from upper direction Cross-sectional schematic diagram of relevant parts showing an example in which the shape of the rotation support portion of the stirring body arranged in the container according to Embodiment 1 of the present invention is changed. Schematic diagram of the main part cross section of the heating and stirring cooker in the first embodiment of the present invention. The top view of the rotating magnetic field generation | occurrence | production part and heating part of the heating and stirring cooker in Embodiment 1 of this invention FIG. 3 is a schematic cross-sectional view of a main part showing a state in which the container of the heating and stirring cooker according to Embodiment 1 of the present invention is placed in a plane shifted from the center of the rotating magnetic field generating unit. Cross-sectional schematic diagram of relevant parts of a stirring body arranged in a container according to Embodiment 2 of the present invention The top view which looked at the stirring body arrange | positioned at the container in Embodiment 2 of this invention from upper direction Cross-sectional schematic diagram of relevant parts of a stirring body arranged in a container according to Embodiment 3 of the present invention The top view which looked at the stirring body arrange | positioned at the container in Embodiment 3 of this invention from upper direction Cross-sectional schematic diagram of relevant parts of a stirring body arranged in a container according to Embodiment 4 of the present invention Sectional schematic diagram of relevant parts of an agitator arranged in a container having another configuration according to Embodiment 4 of the present invention. Sectional schematic diagram of relevant parts of a container with a stirring function in Embodiment 5 of the present invention Sectional schematic diagram of relevant parts of a container with a stirring function of another configuration according to Embodiment 5 of the present invention Cross-sectional schematic diagram of the main part showing a conventional rotary cooker

The stirrer of the first invention is
A stirring body that is detachably arranged with respect to a container for storing the food to be cooked and that stirs the food to be cooked in the container,
When the stirrer is accommodated in the container, the permanent magnet is disposed facing the inner bottom of the container, and receives a rotating magnetic field from the outside,
A storage section for storing the permanent magnet;
A container abutting portion that abuts against the inner bottom of the container when the agitator is stored in the container;
A rotation support portion for rotatably supporting the storage portion in a stirring direction in a state where the container contact portion is in contact with the inner bottom of the container;
The container abutting portion and the rotation support portion are provided, and a bottom is provided above the storage portion.
A support formed in a cylindrical shape ;
The stirrer is connected to the storage unit via a rotating shaft and above the support, and is arranged outside the support and extends in the upward direction of the support and in the radial direction of the support. A blade portion for stirring the food to be cooked,
A rotating body having the blade portion, the permanent magnet, and the storage portion;
It is the structure provided with .
As a result, the rotating support unit is configured to rotatably support the rotating body in the agitating direction with the container contacting portion of the supporting body in contact with the inner bottom of the container, and the rotating body and the inner bottom surface of the container are not directly required. Thus, it is possible to reliably reduce friction caused by rotation. Stir cooking with high torque can be realized while suppressing a loss of rotational torque due to friction between the rotating body and the inner surface of the container and generation of scratches and wear on the inner surface of the container while applying a strong rotating magnetic field.

According to a second aspect of the invention, in particular, in the first aspect of the invention, the rotational speed for stirring the food to be cooked in the container is higher for the rotating body than for the support body.
This suppresses the generation of friction due to an increase in the number of rotations at the container abutting portion of the support that abuts against the inner bottom of the container, and prevents unnecessary contact between the rotating body and the bottom surface of the container to reduce friction due to rotation. It can be reliably reduced. Stir cooking with high torque can be realized while suppressing a loss of rotational torque due to friction between the rotating body and the inner surface of the container and generation of scratches and wear on the inner surface of the container while applying a strong rotating magnetic field.

According to a third aspect of the invention, in particular, in the second aspect of the invention, the rotational resistance of the rotary support in the rotary support portion that is rotatably supported by the support is smaller than the rotational resistance of the support at the container contact portion with respect to the container. It is what.
As a result, the support can reliably support the rotating body in the stirring direction so that the container abutting portion comes into contact with the inner bottom of the container and is stationary. Thus, it is possible to reliably reduce friction caused by rotation by preventing direct unnecessary contact. Stir cooking with high torque can be realized while suppressing a loss of rotational torque due to friction between the rotating body and the inner surface of the container and generation of scratches and wear on the inner surface of the container while applying a strong rotating magnetic field.

According to the first invention, since the magnetic force due to the rotating magnetic field acts on the support body on the inner peripheral side of the container contact portion, the support body is rotated in the rotation support portion in a state of stably contacting the inner bottom of the container. It is possible to realize a configuration in which the rotating body is rotatably supported in the stirring direction, and direct unnecessary contact between the rotating body and the bottom surface of the container can be prevented, and friction caused by rotation can be reliably reduced. Stir cooking with high torque can be realized while suppressing a loss of rotational torque due to friction between the rotating body and the inner surface of the container and generation of scratches and wear on the inner surface of the container while applying a strong rotating magnetic field.

The container with a stirring function of the fourth invention makes it possible to store an object to be cooked, and a container that generates heat by receiving heat from outside,
In particular, the stirring body according to any one of the first to third inventions, which is detachably arranged in the container and stirs the food to be cooked in the container,
It is set as the structure provided with.
As a result, while the food to be cooked accommodated in the container is heated, the agitator supports the rotating body in the agitating direction so that the rotating body can rotate freely in a state where the container abutting portion of the support is in contact with the inner bottom of the container. Therefore, it is possible to prevent unnecessary direct contact between the rotating body and the bottom surface of the container, and reliably reduce friction caused by rotation. Heating and stirring cooking with high torque can be realized by suppressing the loss of rotational torque due to the friction between the rotating body and the inner surface of the container and the generation of scratches and wear on the inner surface of the container while applying a strong rotating magnetic field.

According to a fifth aspect of the invention, in particular, in the fourth aspect of the invention, a configuration is provided that includes a position restricting portion that restricts the position of the support on the inner bottom surface of the container.
Thereby, the position shift with respect to the container of a support body can be prevented. That is, it is possible to prevent the positional deviation between the rotation center of the rotating body and the center of the rotating magnetic field acting from the outside in the stirring body, so that the state where the magnetic fluxes are reliably linked can be stably maintained. In addition, the rotating support portion is configured to support the rotating body so as to be rotatable in the stirring direction in a state where the container contacting portion of the supporting body is in contact with the inner bottom of the container, and the rotating body and the bottom surface of the container are not directly required. It is possible to prevent contact and reliably reduce friction caused by rotation. Furthermore, stirring torque with high torque can be realized while suppressing a loss of rotational torque due to friction between the rotating body and the inner surface of the container and generation of scratches and wear on the inner surface of the container while applying a strong rotating magnetic field. Even if a large load acts on the stirrer, it can be prevented that the stirrer is displaced from the rotating magnetic field and cannot be rotated.

The heating and stirring cooker according to the sixth invention
A container that can store the food to be cooked and generates heat by receiving heat from the outside,
A placement section capable of placing the container;
A heating unit provided in the mounting unit for heating the container;
A container with a stirring function according to the fourth or fifth aspect of the present invention, which is detachably arranged in the container and stirs the food to be cooked in the container,
With
A rotating magnetic field generating unit that is provided in the mounting unit and generates a rotating magnetic field for the permanent magnet in the storage unit;
It is set as the structure provided with.
As a result, while the container with stirring function that contains the food to be cooked is placed on the placement part and heated, the stirring support member rotates with the container contact part of the support member in contact with the inner bottom of the container. In this configuration, the rotating body is supported so as to be rotatable in the agitating direction, and direct unnecessary contact between the rotating body and the bottom surface of the container can be prevented, and friction caused by rotation can be reliably reduced. Heating and stirring cooking with high torque can be realized by suppressing the loss of rotational torque due to the friction between the rotating body and the inner surface of the container and the generation of scratches and wear on the inner surface of the container while applying a strong rotating magnetic field.

  Here, the meaning of non-contact power transmission means that the container can be handled easily because the bottom surface of the container can be simplified both inside and outside compared to the case where the drive shaft is passed through the container and the power is transmitted directly. It is in the same way as the container. In other words, if there is a drive shaft in the presence of a drive shaft, it will take time to clean the container after use, and multiple containers can be stacked and stored when not in use. If the storage space cannot be saved, the usability is sacrificed. Further, if there is a convex portion on the outside of the bottom surface, usability is sacrificed because it cannot be stably placed on a flat table or the space for storing the container becomes large. Moreover, since the above-described problems cannot be completely eliminated by a method in which the support shaft of the stirring body is simply fixed to the container, the advantage in transmitting power without contact cannot be fully exhibited.

  SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and the container is not provided with a support shaft for the rotating body, thereby preventing direct and unnecessary contact between the rotating body and the bottom surface of the container. It is possible to realize heating and stirring cooking with high torque while suppressing the occurrence of scratches and wear on the inner surface. For example, in general cooking such as stewed cooking, the to-be-cooked food has increased viscosity resistance due to the evaporation of moisture with heating, and even when the cooking is continued, the moisture will evaporate. Stirring can be performed with high torque, and the cook is freed from this operation, so that the labor of cooking is saved. Moreover, since the container does not require a special configuration, it can maintain the same usability as a general pan for a long time. Since cooking containers and stirring bodies are cooking utensils that come into direct contact with foods eaten by humans, it is extremely important in terms of safety and hygiene to prevent wear and scratches.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a schematic cross-sectional view of a main part of a stirrer disposed in a container according to Embodiment 1 of the present invention, and FIG. 2 is a plan view of the stirrer disposed in the container according to Embodiment 1 of the present invention as viewed from above. It is.

In FIGS. 1 and 2, reference numeral 10 denotes a stirrer including a storage unit 13 that stores the permanent magnet 12, a rotating body 14 having a blade 11 formed around the storage unit 13, and a support body 17. Is detachably disposed at the bottom of the container 20 for storing the food to be cooked (not shown), and is configured to stir the food to be cooked in the container 20 as the stirring body 10 rotates. The blade | wing part 11 stirs to-be-cooked object when the stirring body 10 rotates. The permanent magnet 12 is arranged to face the inner bottom 20 </ b> A of the container 20 when the stirring body 10 is stored in the container 20, and receives a rotating magnetic field from the outside. The rotating body 14 includes a blade portion 11, a permanent magnet 12, and a storage portion 13.
And have.

  In FIG. 1, the support 17 includes a container contact portion 15 that contacts the inner bottom 20 </ b> A of the container 20 when the stirring body 10 is stored in the container 20, and the container contact portion 15 contacts the inner bottom 20 </ b> A of the container 20. A rotating support portion 16 that rotatably supports the rotating body 14 in the agitating direction (N direction shown in FIG. 2) while in contact with the rotating body 14 is provided. The container contact portion 15 is formed of a flat plate and is connected to the rotation support portion 16. A storage portion 13 is placed on the flat plate of the container contact portion 15. The rotation support portion 16 is a cylindrical shaft that passes through a shaft hole 13a provided at the center of the storage portion 13 that is the rotation center of the rotating body 14, and the outer diameter of the rotation support portion 16 is set to be narrower than the inner diameter of the shaft hole 13a. The rotating body 14 is rotatable with respect to the support body 17 because it has a clearance of an appropriate dimension even in the range of temperature change in cooking. Further, the storage portion 13 is arranged to be movable in the axial direction of the rotation support portion 16 by forming the rotation support portion 16 in the axial direction longer than the axial length of the shaft hole 13a.

About the stirring body comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.
The magnetic flux of the permanent magnet 12 accommodated in the accommodating portion 13 in a circumferential shape and the magnetic flux of the rotating magnetic field from the outside are linked so that the rotating body 14 is in a horizontal direction substantially parallel to the main plane of the inner bottom 20A of the container 20. A magnetic force acts so as to rotate, and at the same time, a magnetic force acts in the direction in which the rotating body 14 is attracted to the inner bottom 20A of the container 20, but the container contact portion 15 is set larger than the diameter of the shaft hole 13a. The rotating body 14 rotates with a constant gap corresponding to the thickness of the container contact portion 15 with the container 20. Thereby, the rotating body 14 rotates while stirring the food to be cooked by the blade portion 11 in accordance with the rotating magnetic field without direct friction with the container 20.

  Moreover, the rotation speed which stirs the to-be-cooked object in the container 20 is made so that the rotary body 14 to which a rotating magnetic field acts directly becomes higher than the support body 17. FIG. This is a configuration in which the permanent magnet 12 is housed in the housing portion 13 of the rotating body 14, and there is a certain gap between the shaft hole 13 a of the housing portion 13 and the rotation support portion 16 of the support body 17, so that it can rotate. The rotational speed of the support 17 is in a relationship in which slip occurs with respect to the rotation of the rotating body 14 to which the rotating magnetic field directly acts, and the rotational speed of the rotating body 14 is higher than the rotational speed of the support 17. It has become. Further, the rotational resistance of the rotating body 14 with respect to the storage portion 13 in the rotational support portion 16 that is rotatably supported by the support body 17 is smaller than the rotational resistance with respect to the container 20 in the container contact portion 15 of the support body 17. As a result, the stirring body 10 is subjected to a rotating magnetic field from the outside, so that only the rotating body 14 rotates. In other words, by setting the condition that the support 17 does not rotate as the rotating body 14 rotates, the support 17 that contacts the container 20 with respect to the container 20 stays in a certain place and does not slide with the container 20. The container 20 is not worn or the loss of rotation does not increase.

  Further, the rotation support portion 16 of the support body 17 is disposed in a region closer to the rotation center than the arrangement of the permanent magnets 12 in the storage section 13 of the rotation body 14, and the configuration of the stirring body 10 can be reduced in size. Further, the rotation support portion 16 that rotatably supports the rotating body 14 may be provided with means for reducing the friction coefficient, the contact area may be adjusted, or the distance from the rotation center to the contact portion may be reduced as a rotation moment. You may adjust it. In addition, a means for preventing slippage may be provided on the contact surface of the container contact portion 15 with the container 20. With this configuration, the rotating body 14 is smoothly stirred with respect to the container 20 to suppress the loss of rotational torque and the occurrence of scratches and wear on the inner surface of the container due to friction between the rotating body 14 and the inner bottom surface of the container 20 during stirring. The to-be-cooked object by high torque can be stirred.

Further, the tip end portion of the rotation support portion 16 in the support body 17 is provided with a retaining portion 16 a that is a retaining means in the direction of the rotation axis whose diameter is larger than the shaft diameter of the rotation support portion 16. Thereby, since the rotary body 14 and the support body 17 do not separate from each other, the rotary body 14 and the support body 17 can be integrally detached from the container 20 and can be prevented from being separated in the container 20 during stirring. . Further, even if the support is composed of small parts, it is not mistakenly mixed with food, so that safe stirring can be realized. Further, it is possible to easily interpose a means for reducing the frictional resistance between the rotating body 14 and the rotation support portion 16 of the support body 17. For example, a bearing member having a low frictional resistance may be provided. The retaining portion 16a may extend upward from the rotating body 14. In this case, the stirrer 10 can be easily attached to and detached from the container 20 by using the retaining portion 16a as a handle.

  FIG. 3 is a schematic cross-sectional view of an essential part showing an example in which the shape of the rotation support portion of the stirring body arranged in the container according to Embodiment 1 of the present invention is changed. The difference from the configuration of FIG. The retaining portion 16 a is located inside the storage portion 13. Thereby, since the stirring body 10 can be made into a more compact structure, you may comprise in this way.

  FIG. 4 is a schematic cross-sectional view of an essential part of the heating and stirring cooker according to Embodiment 1 of the present invention. In FIG. 4, a heating unit 50, a heating means driving circuit 55 that drives the heating unit 50, and a rotating magnetic field generation unit 60 are provided below the placement unit 40 of the induction heating cooker 100. The induction heating cooker 100 can take the form of a device as a general IH (induction heating) cooker that cooks cooked food. The container 20 is placed on the mounting unit 40 so as to face the heating unit 50 and the rotating magnetic field generation unit 60, and the stirring body 10 is placed in the container 20. The heating unit 50 is driven by the heating means driving circuit 55 to heat the container 20. Specifically, in the present embodiment, the heating unit 50 is an induction heating coil, and the heating means drive circuit 55 is an inverter that is connected to a commercial power source and generates a high-frequency voltage. The container 20 receives magnetic lines of force from the heating unit 50. An eddy current is generated in the magnetic metal material 21 provided on the bottom surface of the metal plate, and the magnetic metal plate 21 and the container are heated so that Joule heat generated by the eddy current is heated by heat conduction throughout the container 20 containing the cooked food. 20 is integrally formed. The container 20 is mainly composed of a nonmagnetic metal, and in the present embodiment, is composed of an aluminum alloy that is a good heat conductive material.

  As shown in FIG. 4, the magnetic metal material 21 has a substantially annular shape that is provided facing the heating unit 50 and has an outer periphery and an inner periphery, and the induction heating cooker 100 has a rotating magnetic field facing the inner peripheral region. Since the generator 60 is disposed, the rotating magnetic field generated from the rotating magnetic field generator 60 penetrates the bottom surface of the container 20 made of a nonmagnetic metal and acts on the permanent magnet 12 accommodated in the container 20. Yes. In this state, a rotating magnetic field is generated from the rotating magnetic field generating unit 60, and a strong rotating torque is generated by interlinking with the magnetic flux of the permanent magnet 12 provided in the stirring body 10 disposed in the container 20, thereby generating the stirring body 10. Is rotated near the bottom surface of the container 20, and the cooked food (not shown) accommodated in the container 20 can be stirred by the blade portion 11 provided in the stirring body 10.

  FIG. 5 is a plan view of rotating magnetic field generation unit 60 and heating unit 50 of the heating and stirring cooker according to Embodiment 1 of the present invention. A heating unit 50 is provided in a substantially annular shape so as to face and overlap the magnetic metal material 21 of the container 20 described in FIG. 4, and a heating drive circuit 55 is connected thereto. In the inner space of the heating unit 50, a rotating magnetic field generator 60 is provided in which a coil 61 is wound around a magnetic core 62 and divided into a plurality of parts on a predetermined circumference, and a plurality of coils 61 are sequentially energized by a rotation drive circuit 65. It is the structure which generates a rotating magnetic field by controlling. In the state where the container with stirring function is placed on the placement unit 40 in the induction heating cooker configured as described above, a rotating magnetic field is generated from the rotating magnetic field generation unit 60 and a strong magnetic field is applied to the stirring body 10 with high torque. The rotating body 14 can be rotated.

Here, a case where the container 20 is arranged so as to be shifted from the placement unit 40 will be described.
The induction heating cooker 100 has good usability because various containers can be selected according to the amount of cooking and the like without limitation to the container to be used when the size of the container to be heated is allowed within a certain range. Since the portion 40 is flat and has no strict position restriction, in this case, the container 20 may be placed on the placement portion 40 while being displaced. Here, the container 20 is placed on the mounting portion 40.
The case where they are shifted to each other will be described.

  FIG. 6 is a schematic cross-sectional view of an essential part showing a use state of the heating and stirring cooker according to Embodiment 1 of the present invention, where the container 20 is placed on the placement part 40 of the induction heating cooker 100 while being displaced. It is a principal part cross-sectional schematic diagram. The difference from the state of FIG. 4 is that the center positions of the heating unit 50, the rotating magnetic field generating unit 60, and the container 20 of the induction heating cooker 100 are shifted. Since the support 17 that supports the rotation is not fixed to the container 20, the rotation body 14 is attracted by the rotating magnetic field from the rotating magnetic field generator 60 and can move together with the support 17. The stirrer 10 is moved from the position indicated by the dotted line in FIG. 6 to the position indicated by the solid line while allowing a certain positional shift in the mounting unit 40, and the planarity between the stirrer 10 and the rotating magnetic field generating unit 60 is planar. The stirring operation can be performed in the state shown in FIG. As a result, it is not necessary to provide the mechanical position regulation of the container 20 in the mounting portion 40. Therefore, the mounting portion 40 of the induction heating cooker 100 has a different outer diameter and bottom shape in addition to the container 20. It is possible to heat cook by placing the container. By using this heating and stirring cooker, the user is not worried about scorching during cooking and can save time and effort to stir the food using rice scoop. In addition, since the container 20 can be heated and stirred with the lid (not shown) on the container 20 as compared with the case of stirring by hand, heat loss from the opening side of the container 20 can be prevented and It is also possible to prevent splashing around the cooked food. The container 20 does not need to be provided with a support shaft or a bearing, and can be handled in the same manner as an ordinary pan even when the container 20 is stacked and stored with other containers when the container 20 is washed or not in use.

  Note that the cross-sectional view of the main part shown in the drawing represents a cross-section of the central portion of the substantially cylindrical container. In this embodiment, the rotating magnetic field generator 60 has a coil 61 wound around a magnetic core 62 and a plurality of parts on the circumference. Each of the coils 61 is arranged separately, and a plurality of coils 61 are sequentially energized and controlled by the rotation drive circuit 65 to generate a rotating magnetic field. The permanent magnet 12 included in the stirring body 10 is subjected to a rotating magnetic field generated from the rotating magnetic field generator 60. Correspondingly, a plurality of equiangular angles are provided on the circumference. As the heating unit 50, the container 20 may be omitted from the magnetic metal material 21 as long as the nonmagnetic metal can be directly inductively heated. The nonmagnetic aluminum alloy is used in the same manner as a container heated by a normal heater or the like. It may be made. Further, the rotating magnetic field generator 60 is not limited to the configuration shown in FIG. 4, and a rotating magnetic field may be generated by attaching and rotating a permanent magnet or a magnetized body on the rotating shaft of the motor.

(Embodiment 2)
FIG. 7 is a schematic cross-sectional view of a main part of a stirring body arranged in a container according to Embodiment 2 of the present invention, and FIG. 8 is a plan view of the stirring body arranged in the container according to Embodiment 2 of the present invention as viewed from above. The difference from the first embodiment is the position of the container contact portion 15 in the support 17 of the stirring body 10.

  7 and 8, the container contact portion 15 of the support body 17 is disposed between the permanent magnet 12 and the blade portion 11 of the rotating body 14, and is provided in a region farther from the rotation center than the permanent magnet 12. The agitator 10 is in contact with the inner bottom 20 </ b> A of the container 20 when stored in the container 20. Specifically, the support 17 has a cylindrical shape with a bottom, and the bottom is arranged at the top, and the container abutment portion 15 and the rotation support portion 16 are connected so as to cover the storage portion 13 of the rotation body 14. The container contact portion 15 forms a circumference and is in contact with the inner bottom 20A of the container 20.

In addition, the structure of the rotating body 14 is such that the blade 11 is connected to the storage unit 13 by a rotating shaft 13 b that is rotatably supported by the rotating support 16 of the support 17, and the rotating body 14 is suspended from the support 17. It is the structure supported rotatably in the state. An attractive force acts on the inner bottom 20A surface side of the container 20 to the permanent magnet 12 by the action of the rotating magnetic field from the outside, but the container contact portion 15 of the support 17 is provided in the outer region from this point of action. Thus, the stability of the installation of the stirring body 10 in the container 20 can be increased, and the storage portion 13 of the permanent magnet 12 can be sufficiently brought close to the bottom surface of the container 20.

(Embodiment 3)
FIG. 9 is a schematic cross-sectional view of a main part of the stirring body arranged in the container according to Embodiment 3 of the present invention, and FIG. 10 is a plan view of the stirring body arranged in the container according to Embodiment 3 of the present invention as viewed from above. The difference from the second embodiment resides in the position of the container contact portion 15 in the support 17 of the stirrer 10.

  9 and 10, the container contact portion 15 of the support body 17 is provided outside the rotation region of the rotating body 14. Specifically, the support body 17 is connected to the container contact portion 15 and the rotation support portion 16 so as to cover the rotation body 14, and in particular, as shown in FIG. 15 is extended. The rotating body 14 is configured to be rotatably supported by a rotating shaft 13b that is rotatably supported by the rotating support portion 16 of the support body 17. An attractive force acts on the inner bottom 20A surface side of the container 20 to the permanent magnet 12 by the action of the rotating magnetic field from the outside, but the container contact portion 15 of the support 17 is provided in the outer region from this point of action. In addition, since the container abutting portion 15 is provided in the region outside the load point applied to the blade portion 11 by stirring the object to be cooked, the stability of installation of the stirring body 10 on the container 20 can be further increased. it can.

(Embodiment 4)
11 and 12 are schematic cross-sectional views of the main part of the stirrer disposed in the container according to the fourth embodiment of the present invention. The difference from the third embodiment is that the container abuts on the support 17 of the stirrer 10. It is in the position of the part 15.

  In the configuration of FIG. 11, the container abutting portion 15 of the support body 17 is provided in both the area outside the rotation area of the rotating body 14 and the area closer to the rotation center than the arrangement of the permanent magnets 12 in the rotating body 14. Is provided. Thereby, the stability of the installation of the stirring body 10 to the container 20 can be further increased, and the rotating magnetic field can be further increased to cope with stirring at a higher torque.

  12, the container contact portion 15 may be continuously provided on both sides of a region outside the rotation region of the rotating body 14 and a region closer to the rotation center than the arrangement of the permanent magnets 12. . Thereby, the stability of the installation to the container 20 of the stirring body 10 can be made still higher. As shown in FIG. 12, it is possible to make the influence on the heating and stirring by the support 17 extremely small by forming the container abutting portion 15 thin along the inner bottom surface of the container 20, and in addition, the rotating magnetic field is further reduced. It can be strengthened to cope with stirring at a higher torque.

  In addition, you may make it regulate the position shift of the stirring body 10 in the container 20 by making the container contact part 15 close to the side surface of the container 20 as shown in FIG. Further, the distance from the center of the stirring body 10 to the outer periphery of the container contact portion 15 may be adjusted. With this configuration, the distance of the container contact portion 15 can be changed according to the inner diameter of the container 20.

(Embodiment 5)
13 and 14 are schematic cross-sectional views of the relevant part of a container with a stirring function according to Embodiment 5 of the present invention. The difference from the first to fourth embodiments is the configuration of the container 20, in that it includes a position restricting portion 22 that restricts the position of the container abutting portion 15 of the support 17 on the inner bottom 20 </ b> A of the container 20. In FIG. 13, the position restricting portion 22 is formed at the center of the inner bottom 20 </ b> A of the container 20 by a recessed portion that is slightly larger than the size of the flat plate portion of the container contacting portion 15. Contains 15. In FIG. 14, the position restricting portion 22 is slightly larger than the combined size of the container abutting portion 15 and the storage portion 13 constituting the stirring body 10 described in the second embodiment at the center of the inner bottom 20 </ b> A of the container 20. The container contact portion 15 and the storage portion 13 are contained in the recess of the position restricting portion 22.

  As a result, the stirrer 10 can be prevented from being displaced from a predetermined position of the container 20 during the stir operation, so that the magnetic flux of the permanent magnet 12 provided in the rotor 14 of the stirrer 10 deviates from the region of the rotating magnetic field received from the outside. Therefore, the to-be-cooked object can be agitated with high torque and the linkage between magnetic fluxes can be maintained, so that the rotation control of the agitator is not disabled. As shown in FIGS. 13 and 14, the position restricting portion 22 may be a small step or a rib-like shape provided on the bottom surface of the container for reinforcement and design, and is provided in consideration of usability such as the cleanability of the container 20. Just do it.

  As described above, the heating and stirring cooker according to the present invention mounts and heats a container for storing an object to be cooked, and includes an agitator that detachably stirs the food with respect to the container. The stirring body can be driven in a non-contact manner by the action of a rotating magnetic field from the inside, and cooking with heating and stirring can be performed. Furthermore, since the structure of the stirring body includes a rotating body provided with a blade portion for stirring the object to be cooked and a support body that supports the rotation of the rotating body, the support body is in contact with the bottom surface of the container and is in a stable state. The rotating body can be rotated and supported so that the rotating body does not rub against the bottom surface of the container during rotation. The sliding wear can be prevented. Since the container does not need to be provided with a special structure such as a support shaft or a bearing, it is excellent in usability. Moreover, the structure which provides the position control part of a support body in a wiping container can prevent the shift | offset | difference of a magnetic field axis with a rotating magnetic field reliably. Further, the heating means is not limited to induction heating, and may be one using a heating means such as a heater, steam, hot air or radiant heating. Further, in addition to stirring, the present invention can also be applied to cooking devices and processing devices that perform cutting, pulverization, and kneading of food materials.

DESCRIPTION OF SYMBOLS 10 Stirring body 11 Blade | wing part 12 Permanent magnet 13 Storage part 14 Rotating body 15 Container contact part 16 Rotation support part 16a Detachment part 17 Support body 20 Container 20A Inner bottom 22 Position control part 50 Heating part 60 Rotating magnetic field generation part 100 Induction Cooker

Claims (6)

A stirring body that is detachably arranged with respect to a container for storing the food to be cooked and that stirs the food to be cooked in the container,
When the stirrer is accommodated in the container, the permanent magnet is disposed facing the inner bottom of the container, and receives a rotating magnetic field from the outside,
A storage section for storing the permanent magnet;
A container abutting portion that abuts against the inner bottom of the container when the agitator is stored in the container;
A rotation support portion for rotatably supporting the storage portion in a stirring direction in a state where the container contact portion is in contact with the inner bottom of the container;
A support body formed in a cylindrical shape having a bottom above the container contact portion and the rotation support portion and covering the storage portion ;
The stirrer is connected to the storage unit via a rotating shaft and above the support, and is arranged outside the support and extends in the upward direction of the support and in the radial direction of the support. A blade portion for stirring the food to be cooked,
A rotating body having the blade portion, the permanent magnet, and the storage portion;
Agitator with a. The stirrer according to claim 1, wherein the rotating body that stirs the object to be cooked in the container has a higher rotational body than the support body. The stirrer according to claim 2, wherein the rotational resistance of the rotating body at the rotating support portion that is rotatably supported by the support body is smaller than the rotational resistance of the rotating body against the container at the container contact portion. A container that can store the food to be cooked and generates heat by receiving heat from the outside,
The stirring body according to any one of claims 1 to 3 , wherein the stirring body is detachably arranged in the container and stirs the food to be cooked in the container.
A container with stirring function. The container with a stirring function according to claim 4, further comprising a position restricting portion that restricts the position of the support on the inner bottom surface of the container. A container that can store the food to be cooked and generates heat by receiving heat from the outside,
A placement section capable of placing the container;
A heating unit provided in the mounting unit for heating the container;
A container with a stirring function according to claim 4 or 5, wherein the container is detachably disposed in the container and stirs the food to be cooked in the container.
With
A rotating magnetic field generating unit that is provided in the mounting unit and generates a rotating magnetic field for the permanent magnet in the storage unit;
Heated stir cooker with.