Invention Grant
- Patent Title: Electromagnetic actuating device for a switching element
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Application No.: US16495804Application Date: 2018-02-06
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Publication No.: US11075042B2Publication Date: 2021-07-27
- Inventor: Thomas Speh , Martin Ruider , Michael Pantke , Thomas Schwegler
- Applicant: ZF Friedrichshafen AG
- Applicant Address: DE Friedrichshafen
- Assignee: ZF Friedrichshafen AG
- Current Assignee: ZF Friedrichshafen AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Brinks Gilson & Lione
- Priority: DE102017204834.4 20170322
- International Application: PCT/EP2018/052863 WO 20180206
- International Announcement: WO2018/171971 WO 20180927
- Main IPC: F16F9/16
- IPC: F16F9/16 ; H01H47/02 ; H01H47/22 ; H01H50/18 ; H01H50/44 ; F16D27/14

Abstract:
An electromagnetic control mechanism for a switching element is described herein, which can be switched to an open operating state and to a closed operating state by means of an electromagnet and an actuating unit that acts counter to the actuation force of the electromagnet. The electromagnet has a dedicated mechanism for dampening the actuation movement of an anchor of the electromagnet toward a section of the coil, by means of which the actuation speed of the anchor can be reduced after a distance between a section of the anchor facing the coil and the section of the coil becomes shorter than a predefined distance. The mechanism for dampening comprises at least one component connected to the coil, which becomes functionally connected to the anchor after the distance becomes shorter than the defined distance, wherein, as the displacement of the anchor increases, liquid can be discharged from a chamber bordered by the component and the anchor via a throttle mechanism to an extent that reduces the actuation speed of the anchor.
Public/Granted literature
- US20200027674A1 ELECTROMAGNETIC ACTUATING DEVICE FOR A SWITCHING ELEMENT Public/Granted day:2020-01-23
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