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公开(公告)号：US10852854B2
公开(公告)日：2020-12-01
申请号：US16366871
申请日：2019-03-27
Applicant: Defond Electech Co., Ltd , Defond Components Limited
Inventor： Cheng Chen Nieh , Kai Kei Poon , Ka Leung Luk
IPC: G06F3/0362 , G06F3/044 , H01H19/14 , G06F3/0338 , G06F3/0482
Abstract: A control system for use in controlling operation of an electrical appliance, the system including: a processor module disposed inside of a housing of the electrical appliance, the processor module including at least one contactless-type sensor operably-connected with the processor module; an input control module including: an attachment element configured for releasably attaching the input control module to an outer surface of the housing; and at least one sensor-readable element configured for contactless-interaction with the contactless-type sensor.
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公开(公告)号：US20190086945A1
公开(公告)日：2019-03-21
申请号：US16105648
申请日：2018-08-20
Applicant: Defond Components Limited , Defond Electech Co., Ltd.
Inventor： Cheng Chen Nieh , Hoi Him Ko
Abstract: A transducer device including: a base platform; an annular support member mounted on a surface of the base platform, the annular support member having a first opening positioned adjacent the surface of the base platform and a second opening positioned away from the surface of the base platform along a rotation axis; an inner shaft mounted relative to the base platform and configured to extend away from the second opening of the annular support member and rotate relative to the annular support member about the rotation axis; an inner shaft detent mechanism located at least partially within the annular support member configured for releasably securing the inner shaft in a plurality of rotational positions corresponding to each of a plurality of detent positions of the inner shaft detent mechanism as the inner shaft is rotated about the rotation axis; an outer shaft including a passage extending along an elongate axis thereof configured for receiving the inner shaft therein so that the inner shaft and outer shaft are arranged to rotate concentrically relative to each other about the rotation axis, the outer shaft further including a flanged portion configured for seating upon an outer surface of the annular support member; a PCB unit disposed on the surface of the base platform comprising: a first transducer circuit unit operably coupled to the inner shaft and responsive to rotational movement of the inner shaft about the rotation axis so that the first transducer circuit unit outputs a first electrical signal that is indicative of a rotational position of the inner shaft about the rotational axis; a second transducer circuit unit operably coupled to the outer shaft and responsive to rotational movement of the outer shaft about the rotation axis so that the second transducer circuit unit will output a second electrical signal that is indicative of a rotational position of the outer shaft about the rotational axis; a housing configured for enclosing the first and second transducer circuit units therein and having an opening disposed in a wall of the housing via which ends of the inner and outer shafts may extend outwardly of the housing along the rotation axis; and an outer shaft detent mechanism located between the outer shaft and an inner surface of the housing configured for releasably securing the outer shaft in a plurality of rotational positions corresponding to each of a plurality of detent positions of the outer shaft detent mechanism as the outer shaft is rotated about the rotation axis.
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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
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.
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公开(公告)号：US11489523B2
公开(公告)日：2022-11-01
申请号：US16682561
申请日：2019-11-13
Applicant: DEFOND ELECTECH CO., LTD , DEFOND COMPONENTS LIMITED
Inventor： Cheng Chen Nieh , Kai Kei Poon , Yiu Cho Yuen
IPC: H03K17/96 , G06F3/02 , G06F3/044 , G06F3/0481
Abstract: A touch control human-machine interface for use in controlling operation of a machine, said interface including: an interface housing; a cover plate disposed on an outer-surface of the housing, said cover plate having a first electrically-conductive portion configured for touch interaction by a user's finger; a circuit assembly disposed within the housing, said circuit assembly including a circuit board having a second electrically-conductive portion and a light illumination module operably-connected thereto; a spacer element disposed between and separating the first conductive portion from the second conductive portion such that the first conductive portion, the second conductive portion and the spacer element are configured to form a capacitor device that is operably-connected with the circuit assembly; said first electrically-conductive portion being configured for deformation by the user's finger so as to cause a change in capacitance across the capacitor device, and whereby responsive to said change in capacitance, the circuit assembly is configured for generating a control signal for controlling operation of the machine, and, for controlling the light illumination module to propagate a light emission from the circuit assembly through the housing and cover plate so as to be visible externally of the housing.
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公开(公告)号：US10978257B2
公开(公告)日：2021-04-13
申请号：US16923562
申请日：2020-07-08
Applicant: Defond Electech Co., Ltd , Defond Components Limited
Inventor： Cheng Chen Nieh , Kin Yu Wong , Lap Yi Law
Abstract: A trigger assembly for an electrical device that includes a main body having a housing within which an electrical switch unit is disposed. The trigger assembly may include a trigger member having an engagement portion that is hingedly connected to the main body so that the trigger member is rotatable about a hinge relative to the main body. The trigger assembly may include an actuator member operably-connected to the trigger member that is movable between an OFF position and an ON position. The trigger assembly may include a lock-off mechanism including a lock-off member that is selectively operable to restrict movement of the trigger member towards the main body and to thereby restrict movement of the actuator member from the OFF position into the ON position, and, to not restrict movement of the trigger member toward the main body.
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Patent Agency Ranking
公开(公告)号：US20200328606A1
公开(公告)日：2020-10-15
申请号：US16820110
申请日：2020-03-16
Applicant: Defond Electech Co., Ltd. , Defond Components Limited
Inventor： Cheng Chen Nieh , Wai Cheong Wilson Chu , Sen Xian Fang
Abstract: A wireless charging device with a detachable base, which comprises a base and a power supply device detachably connected to the base. The base is provided with a wireless charging module, and the power supply device is internally provided with a power supply and is further provided with a first electrical connection part electrically connected to the power supply. The base is provided with a second electrical connection part which is matched with the first electrical connection part and electrically connected to the wireless charging module. When the base is connected to the power supply device, the first electrical connection part is conductive with the second electrical connection part. The wireless charging device with a detachable can be used to wirelessly charge electronic devices needing different charging powers by means of power supply devices of different specifications.
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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.
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公开(公告)号：US20210383680A1
公开(公告)日：2021-12-09
申请号：US17337722
申请日：2021-06-03
Applicant: Defond Electech Co., Ltd. , Defond Components Limited
Inventor： Cheng Chen Nieh , Chiu Keung Loong , Xiaoling Liu , Chun Kan Lin
IPC: G08C17/02 , H04B1/3827
Abstract: A system for controlling operation of an electric device includes the electric device, at least one contactless sensor module connected to the electric device, and a wearable item equipped with a sensor-readable tag configured for contactless interaction with the contactless sensor of the electric device. The tag is configured for movement with the wearable item into a plurality of different positions relative to the contactless sensor, and the contactless sensor is configured to sense different sensor readings in response to movement of the tag into the plurality of different positions. The electric device is configured to enter a first operating mode in response to the contactless sensor sensing a first position of the tag, and to enter a second operating mode in response to the contactless sensor sensing a second position of the tag.
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公开(公告)号：US11112817B2
公开(公告)日：2021-09-07
申请号：US16884680
申请日：2020-05-27
Applicant: Defond Electech Co., Ltd. , Defond Components Limited
Inventor： Ka Him Leung , Cheng Chen Nieh , Cheong Yip Chan
Abstract: A control stick includes a control portion, a first electrical contact portion and a second electrical contact portion. The control portion has plural first moving contact points, the first electrical contact portion has a control board and plural first static contact points corresponding to the first moving contact points respectively, and a gap exists between the first moving contact point and the respective first static contact point. The first static contact points are electrically connected with the control board. When the control portion swings towards one of the first moving contact points, the first moving contact point is contacted and conducted with the first static contact point. This control stick is capable of achieving the control of a multiple of variables to meet the requirements of controlling a multiple variable in some occasions.
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公开(公告)号：US10591949B2
公开(公告)日：2020-03-17
申请号：US16105648
申请日：2018-08-20
Applicant: Defond Components Limited , Defond Electech Co., Ltd.
Inventor： Cheng Chen Nieh , Hoi Him Ko
Abstract: A transducer device including: a base platform; an annular support member mounted on a surface of the base platform, the annular support member having a first opening positioned adjacent the surface of the base platform and a second opening positioned away from the surface of the base platform along a rotation axis; an inner shaft mounted relative to the base platform and configured to extend away from the second opening of the annular support member and rotate relative to the annular support member about the rotation axis; an inner shaft detent mechanism located at least partially within the annular support member configured for releasably securing the inner shaft in a plurality of rotational positions corresponding to each of a plurality of detent positions of the inner shaft detent mechanism as the inner shaft is rotated about the rotation axis; an outer shaft including a passage extending along an elongate axis thereof configured for receiving the inner shaft therein so that the inner shaft and outer shaft are arranged to rotate concentrically relative to each other about the rotation axis, the outer shaft further including a flanged portion configured for seating upon an outer surface of the annular support member; a PCB unit disposed on the surface of the base platform comprising: a first transducer circuit unit operably coupled to the inner shaft and responsive to rotational movement of the inner shaft about the rotation axis so that the first transducer circuit unit outputs a first electrical signal that is indicative of a rotational position of the inner shaft about the rotational axis; a second transducer circuit unit operably coupled to the outer shaft and responsive to rotational movement of the outer shaft about the rotation axis so that the second transducer circuit unit will output a second electrical signal that is indicative of a rotational position of the outer shaft about the rotational axis; a housing configured for enclosing the first and second transducer circuit units therein and having an opening disposed in a wall of the housing via which ends of the inner and outer shafts may extend outwardly of the housing along the rotation axis; and an outer shaft detent mechanism located between the outer shaft and an inner surface of the housing configured for releasably securing the outer shaft in a plurality of rotational positions corresponding to each of a plurality of detent positions of the outer shaft detent mechanism as the outer shaft is rotated about the rotation axis.
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