Title:
MUTUAL-INDUCTANCE CONTACTLESS CURRENT STARTER FOR COMMERCIAL REFRIGERATION COMPRESSOR MOTOR
Document Type and Number:
WIPO Patent Application WO/2016/004788
Kind Code:
A1
Abstract:
A mutual-inductance contactless current starter for a commercial refrigeration compressor motor comprises a current transformer L1 having a primary coil and a secondary coil, and bidirectional controllable silicon T. One end (1) of the primary coil of the current transformer L1 and a T1 pole of the bidirectional controllable silicon T are jointly connected to an end A of an alternating-current power supply. One end (3) of the secondary coil of the current transformer L1 is connected to a G pole of the bidirectional controllable silicon T. The other end (2) of the primary coil of the current transformer L1 and the other end (4) of the secondary coil of the current transformer L1 are jointly connected to a primary winding leading-out end M of a motor. A T2 pole of the bidirectional controllable silicon T is connected to a secondary winding leading-out end S of the motor. A primary and secondary winding combination leading-out end L of the motor is connected to an end B of the alternating-current power supply. By using the current transformer L1 to sample the current of the motor, the power consumption can be effectively controlled; and the starter is energy-saving and highly efficient, has a simple circuit structure and high universality, can withstand high current, and improves the starting safety of the motor while ensuring reliable starting of the motor.
Inventors:
ZHAO YUNWEN (CN)
Application Number:
PCT/CN2015/077635
Publication Date:
January 14, 2016
Filing Date:
April 28, 2015
Export Citation:
Assignee:
CHANGSHU TIANYIN ELECTROMECHANICAL CO LTD (CN)
International Classes:
H02P1/42; H02P1/44
Foreign References:
| CN2234146Y | 1996-08-28 | |||
| CN101841284A | 2010-09-22 | |||
| CN104104274A | 2014-10-15 | |||
| CN204068775U | 2014-12-31 | |||
| US3667017A | 1972-05-30 |
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
北京德崇智捷知识产权代理有限公司 (CN)
北京德崇智捷知识产权代理有限公司 (CN)
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