- 专利标题: Electromagnetic brake configured to slow deceleration rate of passenger conveyer during braking
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申请号: US16683328申请日: 2019-11-14
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公开(公告)号: US12110207B2公开(公告)日: 2024-10-08
- 发明人: Wei Wei
- 申请人: OTIS ELEVATOR COMPANY
- 申请人地址: US CT Farmington
- 专利权人: OTIS ELEVATOR COMPANY
- 当前专利权人: OTIS ELEVATOR COMPANY
- 当前专利权人地址: US CT Farmington
- 代理机构: Carlson, Gaskey & Olds, P.C.
- 主分类号: B66B1/36
- IPC分类号: B66B1/36 ; B61H7/08 ; B66B1/32 ; B66B1/44 ; B66B5/02 ; B66B9/00 ; B66B11/04 ; B66D5/14
摘要:
This disclosure relates to an electromagnetic brake configured to slow a deceleration rate of a passenger conveyer, such as an elevator car, during braking. In particular, this disclosure relates to a passenger conveyer system including the electromagnetic brake and a corresponding method. An example system includes a controller and an electromagnetic brake. The electromagnetic brake includes a disc configured to interface with a drive shaft, a spring, and a plate biased in a first direction into engagement with the disc by a bias force of the spring. The electromagnetic brake further includes an electromagnet selectively activated in response to a command from the controller to produce a magnetic field attracting the plate in a second direction opposite the first direction to partially offset the bias force of the spring. Further, when the electromagnet is activated, the plate engages the disc.
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