Low-power-consumption positive temperature coefficient thermistor starter

Abstract

The invention discloses a low-power-consumption positive temperature coefficient thermistor starter which is mainly used for starting a refrigerator compressor motor and can be used for starting a common single-phase alternating current motor. The low-power-consumption positive temperature coefficient thermistor starter is characterized by comprising a bidirectional thyristor T and a positive temperature coefficient thermistor Rt, wherein an end A1 of the bidirectional thyristor T is connected with a leading-out end S of a motor secondary winding; an end A2 of the bidirectional thyristor T is connected with a leading-out end M of a motor primary winding; an end G of the bidirectional thyristor T is connected with one end of the positive temperature coefficient thermistor Rt; and the other end of the positive temperature coefficient thermistor Rt is connected with the leading-out end M of the motor primary winding. The low-power-consumption positive temperature coefficient thermistor starter has the advantages of simple structure, reliability in operation, low cost and suitability for large-scale batch production, and the large-scale batch production can be matched with large-scale production of household electrical appliances.

Description

technical field [0001] The invention relates to a low power consumption positive temperature coefficient thermistor starter, which is mainly used for starting a refrigerator compressor motor, and can also be used for starting a general single-phase AC motor. Background technique [0002] A single-phase AC motor usually consists of a rotor and a stator consisting of primary and secondary windings. In addition to the function of starting the motor, the auxiliary winding can also continue to work when the motor is running normally, so the auxiliary winding circuit of a complete single-phase AC motor can usually be represented by a parallel auxiliary winding running circuit and auxiliary winding starting circuit . When the motor is running normally, the motor whose auxiliary winding does not participate in the work does not have the auxiliary winding running circuit part. Among them, the starting circuit part of the auxiliary winding only participates in the work when the moto...

AI Technical Summary

Problems solved by technology

[0005] These low-power consumption single-phase motor starters have a common feature, that is, there is a certain degree of complexity in the electronic circuit, and usually a circuit board is required for installation and welding. The base plate has high production cost and complicated manufacturing process, which will have a certain impact on the reliability of the starter product

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