Patents Assigned to Defond Electech Co., Ltd.
  • Patent number: 10147567
    Abstract: A push-button switch capable of adjusting output power includes a housing. The housing includes a contact assembly and a power adjustment assembly therein. The contact assembly includes an upper terminal, a lower terminal and a connecting elastic plate below the upper terminal. A support seat is provided in the housing. An upper end of the support seat is provided with a first bracket. The first bracket is inserted through the connecting elastic plate. The first bracket is provided with a first slot. One end of the connecting elastic plate is fixedly connected to the upper terminal. Another end of the connecting elastic plate is engaged with the first slot. A drive mechanism is provided above the connecting elastic plate for driving the connecting elastic plate downward. The push-button switch has an ergonomic design.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: December 4, 2018
    Assignees: Defond Electech Co., Ltd., Defond Components Limited
    Inventor: Kai Kei Poon
  • Patent number: 10121626
    Abstract: An electrical switch includes a fixed electrical contact; a movable electrical contact which is moveable relative to thereto between an ON position in contact with and, an OFF position out of contact with, the fixed electrical contact; a contact mover movably coupled to a terminal member moveable relative thereto so as to move the movable electrical contact between the ON and OFF positions; a biasing member coupling the contact mover and the terminal member together such that said biasing member acts upon the contact mover as the contact mover moves the movable electrical contact relative to the fixed electrical contact between the ON and OFF positions; wherein in the ON position, electrical current flows along a path comprising the terminal member, contact mover and movable electrical contact in series, and, an electrical insulation member arranged in series with the biasing member between the contact mover and the terminal member.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: November 6, 2018
    Assignees: DEFOND ELECTECH CO. LTD, DEFOND COMPONENTS LIMITED
    Inventor: Wai Man Wong
  • Patent number: 10083804
    Abstract: A speed control switch includes a base. An upper end of the base is provided with a switch assembly. A side of the base is provided with a PCB board and a slide terminal. The PCB board is provided with a first contact plate. The slide terminal is slidably connected with the first contact plate. The base is provided with a trigger assembly for driving the slide terminal to slide along the first contact plate and to close the switch assembly. The speed control switch can regulate the speed of a motor precisely. The structure is compact to reduce the size of the switch, so that it is convenient for operation.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: September 25, 2018
    Assignees: Defond Electech Co., Ltd., Defond Components Limited
    Inventor: Chi Ming Lai