公开(公告)号：US20190084144A1

公开(公告)日：2019-03-21

申请号：US16119150

申请日：2018-08-31

Applicant: Defond Components Limited ,  Defond Electech Co., Ltd.

Inventor： Cheng Chen Nieh ,  Man Kit Mok ,  Kwok Hang Leung ,  Ka Leung Chan

IPC: B25F5/00 ,  B25F5/02 ,  G01L5/22

Abstract: A control assembly for controlling operation of an electric device having an electric motor, the control assembly including: a force sensor; an actuator configured for movement relative to the force sensor between at least one of a first relative position and a second relative position so as to apply at least one of a first amount of force and a second amount of force against the force sensor; and a control module configured for receiving from the force sensor at least a first signal indicative of a first amount of force and a second signal indicative of a second amount of force being applied against the force sensor by the actuator, wherein, the control module is configured for outputting control signals for controlling a speed of the electric motor by reference to the first amount of force and the second amount of force indicated by the received first and second signals.

公开(公告)号：US11431172B2

公开(公告)日：2022-08-30

申请号：US16596238

申请日：2019-10-08

Applicant: DEFOND ELECTECH CO., LTD ,  DEFOND COMPONENTS LIMITED

Inventor： Cheng Chen Nieh ,  Kai Kei Poon ,  Kwok Hang Leung ,  Man Kit Mok ,  Ka Shing Anthony Yuen

IPC: H02J3/14 ,  G05B15/02 ,  G05B19/042

Abstract: A control system for use in controlling operation of an electrical appliance, including: an electrical appliance housing having a control module; and a power source; a control knob including: an attachment element configured for releasably attaching the control knob to an outer surface of the housing; and an input/output module; a wireless power transfer system configured for wirelessly transferring power from the power source through the electrical appliance housing and to the input/output module for use in powering the input/output module; and a wireless control signaling module configured for wirelessly communicating a control signal from the control knob through the housing to the control module within the electrical appliance housing, said control signal received by the control module being indicative of an operational position/state of the control knob, and whereby said control module is configured for controlling operation of the electrical appliance by reference to the received wireless control signal.