Control circuit and control method of juice extractor

A technology of control circuit and control method, which is applied in the direction of electrical program control, program control in sequence/logic controller, household machinery for filtering food, etc. It can solve the problem of high noise of juice extractor, complex control circuit cost, juice extractor Low work efficiency and other problems, to achieve the effect of improving efficiency, cost safety, reliability and low cost

Active Publication Date: 2013-08-07
KINGCLEAN ELECTRIC
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]Traditional control elements for controlling DC motors all use DC control elements—MOS tubes or IGBTs. Use the DC control element to control the rectified DC power, and supply the controlled DC power to the DC motor. This control method has complex control circuits and high costs. Therefore, traditional juicers use AC motors as power sources. However, AC motors will The rotation speed changes with the load change, which makes the juicer work less efficiently and the noise of the juicer is higher

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control circuit and control method of juice extractor
  • Control circuit and control method of juice extractor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] Example: such as Figure 1-2 As shown, the present invention provides an embodiment of a control circuit of a juice extractor, which includes a central processing unit U, a step-down rectification filter circuit unit 1 that provides a low-voltage power supply to the central processing unit U, and is connected to one end of the mains AC power supply. A current sampling circuit unit 2 that outputs sampling signals to the central processing unit U, a power thyristor TR1 connected in series with the current sampling circuit unit 2, a trigger connected to the control pole of the power thyristor TR1 and controlled by the central processing unit U Unit 7, a DC motor M, a rectifier module 6 connected to the other end of the mains AC power supply and supplied to the DC motor M, a brake unit 3 connected to both ends of the DC motor M, wherein the rectifier module 6 is connected in series with the power thyristor TR1 , the central processing unit U samples the current through th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a control circuit and a control method of a juice extractor. The control circuit at least comprises a central processing unit, a dropping rectification filtering circuit unit, a current sampling circuit unit, a power controllable silicon, a triggering unit and a motor, wherein the dropping rectification filtering circuit unit supplies a low-voltage power to the central processing unit, the current sampling circuit unit is connected with one end of a municipal power alternative-current power supply and is used for outputting a sampling signal to the central processing unit, the power controllable silicon is serially connected with the current sampling circuit unit, the triggering unit is connected with a control electrode of the power controllable silicon and is controlled by the central processing unit, and the central processing unit samples the current through the current sampling circuit unit and controls the running of the motor. With the adoption of the control circuit and the control method, the efficiency can be improved, the noise can be reduced and the rapid brake can be realized.

Description

technical field [0001] The invention relates to a control circuit of a juice extractor and a method thereof. Background technique [0002] The traditional control components of DC motors all use DC control components—MOS tube or IGBT. DC power is supplied to the DC motor. This control method has complex control circuits and high cost. Therefore, traditional juicers use AC motors as power sources. However, AC motors will change their speed as the load changes, making the juicer more efficient. Low, while the noise of the juicer is also high. Contents of the invention [0003] An object of the present invention is to provide a control circuit and method for a juice extractor with improved efficiency. [0004] In order to achieve the above object, a technical solution of the present invention is: the control circuit at least includes a central processing unit, a step-down rectification and filtering circuit unit that provides a low-voltage power supply to the central proces...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
IPC IPC(8): A47J19/00G05B19/04
Inventor倪祖根
OwnerKINGCLEAN ELECTRIC