CONTROL VALVE FOR VARIABLE DISPLACEMENT COMPRESSOR

The present invention relates to a control valve for a variable capacity compressor in which PWM energization control is performed to suppress noise caused by fine vibration of a plunger. The control valve (1) comprises: a body (5) which includes a port (14) communicating with a discharge chamber, a...

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Bibliographic Details
Main Authors SHIMAZAKI SATOSHI, SAKAKIBARA HIDEKAZU
Format Patent
LanguageEnglish
Korean
Published 22.03.2016
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Summary:The present invention relates to a control valve for a variable capacity compressor in which PWM energization control is performed to suppress noise caused by fine vibration of a plunger. The control valve (1) comprises: a body (5) which includes a port (14) communicating with a discharge chamber, a port (12) communicating with a crank chamber, and a valve hole (18) provided on a passage connecting the port (14) to the port (12); a valve body (33) which is disposed to come in contact with or be separated from the valve hole (18) to open or close a valve unit; and a solenoid (3) which performs PWM energization control and generates solenoid force for driving the valve body (33) in a valve closing direction; an operation rod which extends from the solenoid (3) toward the valve body (33) and transfers the solenoid force to the valve body (33); and an anti-vibration spring (100) to which the operation rod (58) is inserted and which supports the operation rod (38) inward in a radial direction to apply sliding resistance. <과제> PWM 방식의 통전 제어가 이루어지는 가변 용량 압축기용 제어 밸브에 있어서, 플런저의 미소 진동에 의한 노이즈를 억제한다. <해결 수단> 제어 밸브(1)는, 토출실에 연통하는 포트(14)와, 크랭크실에 연통하는 포트(12), 및 포트(14)와 포트(12)를 연결하는 통로에 마련된 밸브 구멍(18)을 구비하는 보디(5); 밸브 구멍(18)에 접리 가능하게 배치되어 밸브부를 개폐하는 밸브체(33); PWM 방식에 의한 통전 제어가 이루어지고, 밸브체(33)를 밸브 폐쇄 방향으로 구동하기 위한 솔레노이드력을 발생시키는 솔레노이드(3); 솔레노이드(3)로부터 밸브체(33)를 향해 연장되고, 솔레노이드력을 밸브체(33)에 전달하기 위한 작동 로드(58); 및 작동 로드(58)를 삽통하고, 작동 로드(58)를 반경 방향 내측으로 부세하여 슬라이딩 저항을 부여하는 방진 스프링(100)을 포함한다.
Bibliography:Application Number: KR20150126689