JP2002306350A - Electric food processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress heat generation by the rotation of bearings supporting a large cutter by reducing the number of revolution of a motor without using complex parts such as a microcomputer, control elements, switches, etc., in an electric dresser which cuts a food material by driving a large cutter in a chamber by a motor. SOLUTION: This electric food processor is equipped with a large cutter 2 rotatably mounted on the bottom part of the inside of a vessel 1. The large cutter 2 is driven by a motor 3 to cut a material in the vessel 1 to prepare drinks, etc. A rectifier 6 is equipped in between the motor 3 and a switch 5 for controlling the rotation of the motor 3 to half-wave-rectify an AC power to reduce the number of revolution of the motor 3. Thus the heat generation by the rotation of bearing parts supporting the large cutter is suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric cooker for cutting a cooking material by driving a large cutter provided in a container with an electric motor.

[0002]

2. Description of the Related Art A conventional electric cooker is, for example, as shown in FIGS.

[0003] That is, the large cutter 12 in the container 10
Is controlled by a microcomputer on a control board 13 provided in series with the motor 11 so that the power supply is turned on or off to perform an intermittent operation. The number of revolutions was reduced, and the heat generation of the bearing portion 14 supporting the large cutter 12 was suppressed.

[0004]

The above-mentioned conventional electric cooking machine necessarily requires the control board 13, so that there are many complicated components such as a power supply for driving the microcomputer, control elements, switches, etc. In addition to increasing the cost, the usability of the customer is different from the traditional electric cooker with only switches, and the switch operation of the control board is required and the operation is complicated.

When power is directly supplied to the electric motor 11 without using the control board 13, the rotating cutter has a very large shape compared to a normal electric cooking machine, so that the large cutter 12 is supported. The temperature of the bearing portion 14 rises,
There has been a problem that the heat resistance limit is exceeded and the lubricating oil runs off, which hinders the rotation operation.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has a large cutter rotatably mounted at the bottom in a container, and the large cutter is driven by an electric motor. In an electric cooker that cuts the material in a container to make drinks, a rectifier is provided between the electric motor and a switch that controls the rotation of the electric motor, and the half-wave rectification of the AC power supply reduces the number of revolutions of the electric motor. It has been decelerated.

With the above circuit configuration, the cutter of the electric motor
When cutting the material by using a dripper, the AC power supply is half-wave rectified by a rectifier to reduce the rotation of the motor and generate heat due to the rotation of the bearing that supports the large cutter. To prevent problems such as leakage of lubricating oil and other problems that hinder rotational operation, and that rectified AC power is applied to both the stator and rotor of the motor, There is no problem in the operation or the brake operation at the time of abnormality.

For this reason, a control board, which is always required, is not required, and complicated parts such as a microcomputer, a driving power supply, a control element, and a switch are eliminated, and not only can the product cost be reduced. As for the usability of the customer, the operation can be performed in the same manner as an old switch-type electric cooker, the complicated operation can be improved, and the usability is greatly improved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of the entire electric motor of the present invention, FIG. 2 is a view of the electric cooker of the present invention as viewed from above, and FIG.
1 is an overall circuit diagram of the electric cooker of the present invention.

1 and 2, reference numeral 1 denotes a cylindrical glass container, 2 denotes a large cutter rotatably provided at the center of the bottom of the container 1, and 3 denotes an electric motor. By inserting the plug 4 of the power cord provided at the lower part on the outside into the power source and closing the switch 5, the large cutter
2 rotates and cuts ingredients to make drinks.

Reference numeral 7 denotes a main body containing the electric motor 3, and the switch 5 is provided on the upper part of the main body 7. 8 is a lid of the container 1.

In FIG. 3, reference numeral 6 denotes a rectifier, which is provided between the motor 3 and the switch 5, rectifies half-wave AC power and supplies power to the motor 3 when the switch 5 is closed. I do.

Next, the operation will be described.

First, the lid 8 is opened, the large cutter 2 is mounted at the center of the bottom of the container 1, and the material is put into the container 1.

Next, when the lid 8 is attached, the plug 4 of the power cord is inserted into the power source, and the switch 5 is closed,
Electric power is supplied to the electric motor 3, and the large cutter 2 rotates.

Due to the rotation of the large cutter-2, the material is cut while rotating, and after about 1 to 2 minutes, it becomes a juice.

Here, the rectifier 6 includes the motor 3 and the switch 5.
AC power supply is half-wave rectified,
When the switch 5 is closed, it is applied to both the stator and the rotor of the motor in the circuit of the motor 3, and when the motor 3 is normal,
A half-wave current flows in the series circuit of the rotor and the stator, and when an abnormality occurs, the circuit becomes only the stator and the rotor, and the brake operation is performed.

[0019]

According to the present invention, a large cutter rotatably mounted is provided at the bottom of the container, and the large cutter is driven by an electric motor to cut the material in the container to make drinks. In an electric cooker, a rectifier is provided between an electric motor and a switch for controlling the rotation of the electric motor, and the number of rotations of the electric motor is reduced by half-wave rectification of an AC power supply.

With the above circuit configuration, the cutter of the electric motor
When cutting the material by using a dripper, the AC power supply is rectified by half-wave rectification to reduce the rotation of the motor and generate heat due to the rotation of the bearing that supports the large cutter. To prevent problems such as leakage of lubricating oil and other problems that hinder rotational operation.In addition, rectified AC power is applied to both the stator and rotor of the motor, Normal operation or abnormal operation
There is no problem in key operation.

Therefore, the control board, which is always required, is not required, and complicated parts such as a microcomputer, a driving power supply, a control element, a switch and the like are eliminated, and not only can the product cost be reduced. Regarding the usability of the customer, the operation can be performed in the same manner as the old switch-type electric cooker, the complicated operation can be improved, and the usability is greatly improved.

[Brief description of the drawings]

FIG. 1 is an overall sectional view of an electric cooker showing one embodiment of the present invention, and is a sectional view taken along line AA ′ of FIG. 2;

FIG. 2 is a view of the electric cooker according to the embodiment of the present invention, as viewed from the top of the whole;

FIG. 3 is an overall circuit diagram showing one embodiment of the present invention.

FIG. 4 is an overall cross-sectional view of an electric cooker showing a conventional example.

FIG. 5 is an overall circuit diagram of an electric cooker showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Large cutter 3 Motor 5 Switch 6 Rectifier

Claims (1)

[Claims] 1. A large-sized cutter (2) rotatably mounted on a bottom of a container (1), wherein the large-sized cutter (2) is provided.
A switch (5) for controlling the rotation of the electric motor (3) and the electric motor (3) in an electric cooker that drives (2) with the electric motor (3), cuts the material in the container (1), and makes drinks.
An electric cooker characterized in that a rectifier (6) is provided between the electric cooker and a half-wave rectifier of an AC power supply to reduce the rotation speed of the electric motor (3).