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Stepless power adjusting circuit for electric cooking appliance

A technology of electric cooking utensils and circuits, which can be used in home appliances, kitchen utensils, applications, etc., can solve the problems of poor temperature adjustability, and achieve the effect of good temperature adjustability and convenient adjustment

Inactive Publication Date: 2012-11-21
ZHEJIANG SUPOR ELECTRICAL APPLIANCES MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the electric heating plate with fixed power and poor temperature adjustability in the prior art, the present invention provides a stepless power regulation circuit for electric cooking utensils that can conveniently adjust the power of the electric heating plate and has good temperature adjustability

Method used

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  • Stepless power adjusting circuit for electric cooking appliance
  • Stepless power adjusting circuit for electric cooking appliance
  • Stepless power adjusting circuit for electric cooking appliance

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Embodiment Construction

[0013] With reference to accompanying drawing, further illustrate the present invention:

[0014] A stepless power adjustment circuit for electric cookers, including an electric heating plate 1, which is connected in series with a power adjustment module capable of adjusting the power of the electric heating plate 1, and the power adjustment module includes an adjustable potentiometer R1 connected in parallel, a fourth resistor R4 and a capacitor C1 and the fourth resistor R4 are connected in series with the thyristor TRIAC, and the on-off of the thyristor TRIAC determines the connection and disconnection of the electric heating plate 1 with the power supply. The commonly used power supply is the mains.

[0015] The adjustable potentiometer R1 is connected in parallel with the second resistor R2 to form an adjustable resistor parallel unit, and the adjustable resistor parallel unit is connected in series with the third resistor R3.

[0016] The adjustable potentiometer R1 is ...

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Abstract

The invention relates to a stepless power adjusting circuit for an electric cooking appliance. The stepless power adjusting circuit comprises an electric heating plate. The electric heating plate is serially connected with a power adjusting module which can adjust the power of the electric heating plate. The power adjusting module comprises an adjustable potentiometer, a fourth resistor and a capacitor which are connected in parallel. The fourth resistor is serially connected with a thyristor. The on / off of the thyristor determines connection and disconnection between the electric heating plate and a power supply. The stepless power adjusting circuit for the electric cooking appliance has the advantages that the power of the electric heating plate can be conveniently adjusted and the temperature adjustability is good.

Description

technical field [0001] The invention relates to a stepless power adjustment circuit for an electric cooker. Background technique [0002] Existing electric cooking utensils such as electric steamer, electric saucepan and electric rice cooker all have two modes of high-power heating and low-power heat preservation. The commonly used control method is to use diode chopping to realize the conversion between high-power heating plate and low-power heating plate, such as figure 1 shown. Or use a relay to control the voltage obtained by the electric heating plate to realize the mode switching between high-power heating and low-power heat preservation, such as figure 2 shown. [0003] The disadvantages of these two control methods are: the power of the electric heating plate is fixed, and only one or two power values ​​can be generated, that is, there is only a difference between high power and low power, and the adjustment effect is relatively extensive, and it is impossible to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/66A47J27/00
Inventor 孟城城樊杜平陈舒朱春生
Owner ZHEJIANG SUPOR ELECTRICAL APPLIANCES MFG CO LTD
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