公开(公告)号：US11975434B2

公开(公告)日：2024-05-07

申请号：US16932564

申请日：2020-07-17

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

Inventor： Wai Man Wong

IPC: B25D16/00 ,  B23B45/02 ,  B25F5/00 ,  H01H3/20 ,  H01H9/06

CPC classification number: B25D16/006 ,  B23B45/02 ,  B25F5/001 ,  H01H9/06 ,  B25D2216/0084 ,  B25D2250/255 ,  H01H3/20

Abstract: A control assembly for use with an electrical device to control operation of the electrical device in a plurality of operational modes.

公开(公告)号：US11823856B2

公开(公告)日：2023-11-21

申请号：US17119656

申请日：2020-12-11

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

Inventor： Kin Yu Wong

IPC: H01H71/52 ,  H01H71/02

CPC classification number: H01H71/521 ,  H01H71/02 ,  H01H71/523

Abstract: An electrical switch including a switch housing, a switch circuit disposed within the switch housing. The switch circuit including includes a movable contact member mounted on a contact lever and a stationary contact member. The contact lever is configured for operable-interaction with an actuator. The actuator is configured for movement along an actuator movement axis relative to the contact lever between at least one of an OFF position whereby the contact lever is configured for arrangement in to the first configuration whereby the switch circuit is opened, and, an ON position in which the contact lever is configured for arrangement in to the second configuration whereby the switch circuit is closed.

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.

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.

公开(公告)号：US20210183604A1

公开(公告)日：2021-06-17

申请号：US17119656

申请日：2020-12-11

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

Inventor： Kin Yu WONG

IPC: H01H71/52 ,  H01H71/02

Abstract: An electrical switch including: a switch housing; a switch circuit disposed within the switch housing; said switch circuit including a movable contact member mounted on a contact lever and a stationary contact member; the contact lever being configured for operable-interaction with an actuator, said actuator being configured for movement along an actuator movement axis relative to the contact lever between at least one of an OFF position whereby the contact lever is configured for arrangement in to the first configuration whereby the switch circuit is opened, and, an ON position in which the contact lever is configured for arrangement in to the second configuration whereby the switch circuit is closed; a biasing element configured for biasing the contact lever towards the second configuration; so that the switch circuit is closed when the actuator is moved relative to the contact lever in to the ON positions, said biasing element including a first end attached to a first attachment point in connection with a portion of the contact lever and a second end attached to a second attachment point in connection with the switch housing; and an attachment member configured for attachment with the contact lever whereby when attached to the contact lever, said attachment member is configured for operation as the first attachment point in connection with the portion of the contact lever.

公开(公告)号：US20210059474A1

公开(公告)日：2021-03-04

申请号：US16940187

申请日：2020-07-27

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

Inventor： Ting Yu KWAN

IPC: A47J43/07 ,  A47J43/046 ,  A47J43/08

Abstract: A food processor for use in processing food matter, the food processor including: a receptable configured for holding food matter; an electric motor; a blade configured for being rotatably driven by the electric motor so that the blade is able to blend, mix, stir, agitate or chop the food matter within the receptacle; and a pulsing mode module configured for effecting pulsed operation of the food processor with variable speed or variable torque during blending, mixing, stirring, agitating or chopping of the food matter in the receptacle.

公开(公告)号：US20210053710A1

公开(公告)日：2021-02-25

申请号：US16999492

申请日：2020-08-21

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

Inventor： Nieh Cheng CHEN ,  Poon Kai KEI ,  Leung Ka HIM ,  Chan Ka LEUNG

IPC: B65B31/04 ,  F04B49/02 ,  F04B49/06 ,  F04B39/14

Abstract: The present disclosure relates to the technical field of small household appliances and discloses a separable evacuation device. The separable evacuation device includes an evacuation module. The evacuation module includes a base, which is connected to an opening of a to-be-evacuated container; a vacuum pump, which is disposed on the base and configured to vacuum the to-be-evacuated container; a power supply assembly, which is connected to the vacuum pump and configured to supply power to the vacuum pump; and a control assembly, which is connected to the power supply assembly and the vacuum pump and includes a vacuum pressure switch. The vacuum pressure switch is configured to detect an air pressure value in the to-be-evacuated container and control the power supply assembly to perform one of supplying power to the vacuum pump or powering off the vacuum pump.

公开(公告)号：US20210037650A1

公开(公告)日：2021-02-04

申请号：US16721903

申请日：2019-12-19

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

Inventor： Lei Zhang ,  Guo Zhu Zeng ,  Jian Hua Gong ,  Ding Wei Que ,  Yun Zhang

IPC: H05K1/18 ,  H01L33/48

Abstract: A touch LED component and a touch device, and the touch LED component includes a metal cap, a touch button sheathed on an inner wall of the metal cap, and an LED lamp bead coupled to an inner wall of the touch button, a first through hole formed at the top of the metal cap, an induction pin installed at the bottom of the touch button, and an anode pin and a cathode pin installed on both sides of the bottom of the LED lamp bead respectively. The touch device includes a touch panel, a circuit board, and plural touch LED components. The touch LED component with high integration can be packaged by carrier tapes to facilitate automatic plug-ins and simplify production and assembling processes for mass production. The touch device has the features of simple structure, high reliability, good effect and long life.

公开(公告)号：US20210036637A1

公开(公告)日：2021-02-04

申请号：US17075640

申请日：2020-10-20

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

Inventor： Cheng Chen NIEH ,  Wai Man WONG ,  Ming Leong KONG ,  Pat On KWOK

IPC: H02P7/29 ,  H02P1/18 ,  H03K17/0412 ,  H03K17/687 ,  B25F5/00 ,  H01H13/12 ,  H02P6/08

Abstract: An electrical switch unit for use with a variable speed electrical device includes a housing for a pair of electrical switching contacts, and an actuator operably connected with one of those contacts. A signaling module is associated with the electrical switch unit, and has signaling circuitry for sensing the movement of the actuator and outputting a signaling module signal indicative of the sensed movement or position of the actuator. A power module with a power switching device controllably supplies power from the DC power source to the DC motor at a speed corresponding to the sensed movement or position of the actuator. A control module receives the signaling module signal, and outputs a control module signal to control the power module.

公开(公告)号：US20210012980A1

公开(公告)日：2021-01-14

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

IPC: H01H9/20 ,  H01H21/22 ,  H01H21/36

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.