Patents Assigned to KEDU ELECTRIC CO., LTD
  • Patent number: 11545311
    Abstract: The present application relates to the field of switch technology, in particular to an electromagnetic switch, comprising a housing, a jump mechanism, movably arranged on the housing; a trip mechanism, arranged on the housing and opposite to the jump mechanism, and comprising a bridge plate located on a moving path of the jump mechanism and having multiple locked states, unlocked states, and critical states; The present application further provides another electromagnetic switch, comprising: a housing, an electromagnetic component, a contact mechanism and an armature, two spring buttons are arranged in parallel on the housing, a first spring button is internally provided with a jump structure for providing resistance at a start moment when the first spring button is pressed; in the electromagnetic switch of the present application, a jump structure is arranged on the spring button above the electromagnetic component.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: January 3, 2023
    Assignee: KEDU ELECTRIC CO., LTD.
    Inventors: Chunkai Zheng, Ziping Li, Jun Liao, Dong Chen, Zhixia Tong
  • Patent number: 11495427
    Abstract: Disclosed herein is a leakage protector, which includes a housing. A base plate and a brush are arranged in the housing. A first conducting strip and a second conducting strip spaced apart are arranged on the base plate. The brush is provided with contact pins to contact the first conducting strip and the second conducting strip, respectively. The second conducting strip can generate different analog voltages, and the first conducting strip is configured to transmit different analog voltages to a microprocessor. A user can drive the brush to move through an actuating part, and set the power-on time of the leakage protector in one step.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: November 8, 2022
    Assignee: KEDU ELECTRIC CO., LTD.
    Inventors: Chunkai Zheng, Ziping Li, Jun Liao, Desheng Zhao
  • Patent number: 11456126
    Abstract: Provided is an electric switch, including a casing, an actuator, a movable contact frame, a snap-action resilient member, a lock mechanism, a signal switch and a contact switch. The actuator is capable of reciprocating along a first direction. The movable contact frame is provided with a retaining portion. The snap-action resilient member is arranged in the movable contact frame and is compressed by the actuator when the actuator moves. The lock mechanism includes two lock members which are capable of reciprocating in the mounting cavity along a second direction with the movement of the actuator, so as to lock or unlock the retaining portion. A brush of the electric switch is arranged on the movable contact frame. A movable contact of the contact switch is arranged on the movable contact frame.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: September 27, 2022
    Assignee: KEDU ELECTRIC CO., LTD
    Inventors: Chunkai Zheng, Ziping Li, Bangran Huang, Shengjian Huang, Zhihao Chen
  • Patent number: 11411385
    Abstract: A timing leakage protection circuit and a device containing the same. The timing leakage protection circuit includes a sensing unit, a switching unit, a ground fault circuit interrupter (GFCI) control unit, a switching control unit and an adjustable timing unit. The sensing unit and switching unit are used to be connected in series in a circuit to be protected. The switching control unit is configured to receive a control signal output by the GFCI control unit and control the switching unit to be open when receiving the control signal, so as to interrupt a circuit to be protected. Compared to the traditional leakage protection circuit, the circuit provided herein further has a timing function, so that the timing period can be controlled correspondingly according to different voltages, thereby reducing the circuit complexity and cost.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: August 9, 2022
    Assignee: KEDU ELECTRIC CO., LTD.
    Inventors: Chunkai Zheng, Yingxian Li
  • Patent number: 11120954
    Abstract: An integrated switch is provided in the present application, comprising: a housing; a first circuit board, arranged in the housing; a movable stand, movably connected in the housing; a contact component; a second circuit board, arranged in the housing and connected with an inner wall thereof, and electrically connected with the first circuit board; an electric brush, arranged between the movable stand and the second circuit board, having one end connected with the movable stand and the other end slidably connected with the second circuit board, driven by the movable stand, the electric brush has a connection state after sliding to a first position of the second circuit board, and a disconnection state after sliding to a second position of the second circuit board, and the moving contact shifts from a power-on state to a power-off state after the electric brush slides to the disconnection state.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: September 14, 2021
    Assignee: KEDU ELECTRIC CO., LTD.
    Inventors: Chunkai Zheng, Ziping Li, Bangran Huang, Zhihao Chen, Zhihai Zhang
  • Patent number: 9165728
    Abstract: A switch with contacts includes a housing formed by snap-fit connection of an upper cover and a base, an operating lever and a movable contact holder, the operating lever and the moveable contact holder being movably-fit to one other. A stop device with a lock mechanism is provided in the housing, the lock mechanism being disposed between the stop device and the movable contact holder. An unlock mechanism is arranged between the stop device and the operating lever. The movable contact holder has positions at each of its two ends with the movable contact holder located in the positions of the two ends. The stop device and the movable contact holder are locked and stopped by the unlock mechanism.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: October 20, 2015
    Assignee: KEDU ELECTRIC CO., LTD
    Inventor: Chun Kai Zheng
  • Publication number: 20130026024
    Abstract: A switch with contacts includes a housing formed by snap-fit connection of an upper cover and a base, an operating lever and a movable contact holder, the operating lever and the moveable contact holder being movably-fit to one other. A stop device with a lock mechanism is provided in the housing, the lock mechanism being disposed between the stop device and the movable contact holder. An unlock mechanism is arranged between the stop device and the operating lever. The movable contact holder has positions at each of its two ends with the movable contact holder located in the positions of the two ends. The stop device and the movable contact holder are locked and stopped by the unlock mechanism.
    Type: Application
    Filed: July 16, 2012
    Publication date: January 31, 2013
    Applicant: KEDU ELECTRIC CO., LTD
    Inventor: Chun Kai Zheng