JP2012228681A - Stirrer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small stirrer capable of being safely used.SOLUTION: Each internal state includes a magnetic body disk 3c for stirring at an inner bottom of an upper container 6 and a permanent magnet disk 3b for driving and holding the same at an outer bottom. In a lower drive part housing 1, a permanent magnet disk 3a for driving the permanent magnet disk 3b of the container 6 and the magnetic body disk 3c for stirring and a motor 2 for driving the disk 3a are connected by shaft 2a. This stirrer includes a motor controller electronic circuit 4, a power supply circuit and a storage battery 5 built therein.

Description

  The present invention relates to a desktop-size cooking stirrer used for stirring foods and the like.

Mixers, blenders, food processors, etc. have been developed for small agitators. In general, each apparatus has a blade that rotates at high speed, and a method of finely chopping is taken.
Moreover, although the thing for electromagnetic cookers (for example, refer patent documents 1 and 2) is developed, the simple thing only to stir at the preparation stage of cooking is not developed.

  JP 2004-55507 A   JP 2004-087503 A

  There is a need for a small cooking stirrer that is simple and safe to use and easy to clean after use.

  The present invention has been made based on such circumstances, and an object thereof is to provide a stirrer that is small, easy and safe to use.

In order to achieve the above object, the stirring power device unit and the stirring container are separated, and the power of the stirring power device unit is transmitted to the stirring container through permanent magnetic force during the stirring operation. Therefore, a disk having a protrusion mounted on a self-controlling or other material is placed on the inner bottom of the container, and a permanent magnet disk for the purpose of driving and holding the inner disk is attached to the outer bottom surface of the container. The disks on the inner and outer bottoms cannot be removed under normal conditions by the action of magnetic force.
The stirring power unit used to place the container has a permanent magnet disk for driving the above two disks inside a circular platform aligned with the shape of the bottom of the container and is connected to the lower motor. doing. This motor has a variable number of rotations, and a stirring device that can select a rotation suitable for the material to be stirred is provided.
The motor is assumed to be a radial gap / inner rotor type of a commercially available brushless DC motor, but may be an axial gap type or a DC motor with a brush in consideration of production costs. Fins are provided at the lower part of the disk of the power unit that drives the disk of the container to prevent a local increase in the internal temperature of the stirring power unit.
In addition, a 100 V AC power supply is externally used, but a magnet cord is used for connection. For example, even if something gets tangled in the cord, the cord is easily detached from the casing of the stirring power device. The casing has a drip-proof structure and can be used safely in the kitchen.
Furthermore, a device that can take advantage of the features of a DC motor, has a secondary battery inside, and can use a cordless or stirrer may be used.

Since the stirring container and the stirring power unit are separated, the handling of the container is easy, and the magnetic disk on the inner bottom of the stirring container and the permanent magnet disk on the outer bottom can be easily separated, so that cleaning is possible. An agitated container having an easy structure is provided.
The two disk-shaped permanent magnets that rotate for stirring at the bottom of the container are preferably covered with a material that takes into account the material of the container in order to reduce frictional resistance due to rotation. The container must be non-magnetic. Moreover, if it is a nonmagnetic material, the container currently used can be diverted as a container for stirring.

The stirring disc attached to the inner bottom of the container of the present invention is safe because the top only rotates the projection of the hemisphere, and can be used with peace of mind because the rotational speed is from low to medium. Since the container can be used alone and the disk is simply held by the outer permanent magnet of the container, it can be easily removed and cleaned easily. Therefore, it can be used for daily use.
Further, if the container is non-magnetic, such as a ceramic, glass or plastic container, it can be used as a stirring container as it is.

  The (a) external view used for description of the whole stirrer, (b) Sectional drawing.   (A) longitudinal cross-sectional view of a container, (b) transverse cross-sectional view.

FIG. 1 shows a stirrer according to a preferred embodiment of the present invention. In the figure, similar parts are denoted by the same reference numerals.
According to FIG. 1 (a), the stirrer is equipped with a container 6 having a spout 6a, a lid 6b and a handle 6c at the top, and a magnet cord connector 4a, a power switch 1a, and a rotation speed setting device 1b at the bottom. It is comprised with the drive part housing | casing 1 of a stirring power apparatus part.
The shape of the drive unit housing 1 is the same height as the circular platform around the circular platform 1c aligned with the circular shape that is the shape of the bottom of the dedicated container 6 so that a container other than the dedicated container 6 can be used at the top. Since the pedestal 1d is provided, non-magnetic containers that are normally used, such as ceramics, glassware, plastic containers, etc., can be used as the stirring container.
Further, the drive unit housing 1 has no opening. The power switch 1a is covered with a flexible material, and the knob 1ba of the rotation speed setting device 1b slides inside the rail 1bb outside the housing and is not connected anywhere. The main body of the knob 1ba is a magnetic body, and the same magnetic slide switch 1bc for setting the number of rotations of the motor inside the housing is operated from the outside.
According to FIG. 1B, the internal state of the upper container 6 is that the upper container 6 has a stirring magnetic disk 3c on the inner bottom and a permanent magnet disk 3b for driving and holding it on the outer bottom. In the lower drive unit housing 1, a permanent magnet disk 3a for driving the magnet disk 3b of the container 6 and the stirring magnetic disk 3c and a motor 2 for driving the disk 3a are connected by a shaft 2a. And the motor control electronic circuit 4, the power supply circuit, and the storage battery 5 are incorporated.
There is a possibility that the temperature inside the drive housing 1 rises due to heat generated by the electronic components and the motor and conduction heat when a high temperature material is put in the container 6. Therefore, it is preferable to dissipate heat with the material of the drive unit housing 1 having good heat conduction. Further, a fin 3aa for stirring air is attached to the lower part of the permanent magnet disk 3a so that a local temperature rise portion does not occur inside.

The motor is assumed to drive a brushless DC motor / radial gap / inner rotor type with an electronic control circuit in consideration of heat dissipation, durability and variable rotation speed. Therefore, it may be an axial gap type or a brushed DC motor in consideration of production costs.
The power is converted from AC to DC according to the motor. Depending on the environment in which the stirrer is used, the power cord becomes an obstacle. Therefore, the DC power is supplied to the motor and the storage battery, and the stirrer can be used also in the storage battery.

FIG. 2 is an explanatory view of the container. According to FIG. 2 (a), the top of the stirring magnetic disk 3c is hemispherical as shown by 3cc, and is shaped so as not to be injured when touched by the hand.
Since the magnetic magnetic disc 3c for stirring at the inner bottom and the permanent magnet disc 3b for driving at the outer bottom are held by magnetic force, they can be easily removed when washing. And the center of the bottom of the inside and outside of the container has a hemispherical convex shape 3f so that the mounting position can be easily understood in use.
On the other hand, the stirring magnetic disk 3c and the driving permanent magnet disk 3b have a hemispherical recess at the center of the disk so that the hemispherical convex part can be accommodated. In addition, these disks are preferably covered with a material such as a resin having a low frictional resistance with the container 6 and resistant to heat.
According to FIG. 2 (b), the hemispherical protrusions for stirring are arranged in a 3e direction and a 3d direction row intersecting at right angles thereto. Since the pitches of the protrusions in each row are shifted so as to complement each other, stirring becomes more effective.

DESCRIPTION OF SYMBOLS 1 Drive part housing | casing 2 Motor 3a Permanent magnet disk 3b Permanent magnet disk for drive 3c Magnetic body disk for stirring 4 Electronic circuit for control 5 Power supply circuit and storage battery 6 Container

Claims (2)

  The stirring power device part and the stirring container are separated, and the power is transmitted by a permanent magnetic force during stirring work. For this purpose, a disk having a protrusion mounted on a magnetic material is placed on the inner bottom of the container, and a permanent magnet disk for the purpose of driving and holding the inner disk is attached to the outer bottom surface of the container. The disks on the inner and outer bottoms cannot be removed under normal conditions due to the action of magnetic force. These disks are driven by the rotation of a permanent magnet connected to a motor built in the stirring power unit.   Since the stirring container and the stirring power unit are separated, the handling of the container is easy, and the magnetic disk on the inner bottom of the stirring container and the permanent magnet disk on the outer bottom can be easily separated, so that cleaning is possible. A stirring vessel characterized by an easy structure.

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