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.

Abstract: An snap-action type switch unit includes a switch housing; an actuator plunger configured for depressible movement via an aperture in the switch housing from a first position to a second position; a snap-action switch assembly which is operably-connected with the actuator plunger and responsive to the depressible movement of the actuator plunger so as to effect snap-action type movement of at least one movable contact between a normally opened position and a normally closed position with respect to at least one stationary contact in order to effect switching of electric power; and a signaling signaling assembly which is operably-connected with the actuator plunger and responsive to the depressible movement of the actuator plunger so as to effect movement of at least one movable conductive element of the signaling assembly amongst a plurality of different electrical contact point configurations with respect to at least one stationary conductive element of the signaling assembly.

Abstract: The present invention relates to a linkage structure of a key switch. A second key and a fourth key share one bridge and are connected by a first connecting rod. When the second key or the fourth key is pressed down, the first connecting rod is pushed, so that a first bridge metal dome deforms and is connected to a common contact piece for conduction. A third key and a fifth key share one bridge and are connected by a second connecting. When the third key or the fifth key is pressed down, the second connecting rod is pushed, so that a second bridge metal dome deforms and is connected to the common contact piece for conduction. An input terminal is connected in series to a fuse, and the second key and the fourth key are connected in series to a diode so as to output a rectification half-wave.

Abstract: The present invention provides a motor encoder with a programmable and tactile feedback and an operation method thereof. The encoder includes: a rotary knob; a motor for providing virtual stopping, virtual termination and virtual elastic loading when the knob is turned, and generating a tactile feedback and resistance in different events; a position sensor for providing position information when the knob is started and in a movement process; a controller with a motor driver, wherein the controller is electrically connected with the motor and the position sensor respectively and used for obtaining a position feedback from the position sensor and driving the motor to form closed-loop torque feedback control; and an input interface electrically connected with the controller and used for inputting instruction information to the controller.

Abstract: The present invention relates to a linkage structure of a key switch. A second key and a fourth key share one bridge and are connected by a first connecting rod. When the second key or the fourth key is pressed down, the first connecting rod is pushed, so that a first bridge metal dome deforms and is connected to a common contact piece for conduction. A third key and a fifth key share one bridge and are connected by a second connecting. When the third key or the fifth key is pressed down, the second connecting rod is pushed, so that a second bridge metal dome deforms and is connected to the common contact piece for conduction. An input terminal is connected in series to a fuse, and the second key and the fourth key are connected in series to a diode so as to output a rectification half-wave.

Abstract: The present application provides an air purifier comprising a main body, wherein the main body comprises: a housing, wherein an interior of the housing is hollow, an air inlet is formed at one end of the housing, an air outlet is formed at the other end of the housing, and positions of the air inlet and the air outlet are interchangeable; a fan mounted in the housing and used for sucking outside air from one end of the housing or for sucking outside air from the other end of the housing; a photocatalyst member mounted in the housing; and ultraviolet light-emitting members mounted in the housing, so that ultraviolet light emitted by the ultraviolet light-emitting members can effectively irradiate the photocatalyst member.

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

Abstract: A control assembly for use in controlling a speed of operation of an electric device, the control assembly including: a control assembly housing; a magnetic sensor; a magnetic element; an actuator that is configured for movement relative to the control assembly housing wherein responsive to said movement of the actuator relative to the control assembly housing, the magnetic sensor and magnetic element move relative to each other between at least one of a first position and a second position such that the magnetic sensor senses a first magnetic field reading when in the first position and senses a second magnetic field reading when in the second position; and, a control module operably connected to the magnetic sensor and configured for controlling the electric device to operate in at least one of a first speed and a second speed by reference to an output of the magnetic sensor indicative of the sensed first magnetic field reading and the second magnetic field reading respectively.

Abstract: A control assembly for controlling a speed or torque of operation of an electric device includes a control assembly housing, a magnetic sensor, a magnetic element; and an actuator. The actuator moves relative to the control assembly and, responsive to that movement, the magnetic sensor and magnetic element are moved relative to each other between a first position and a second position so that the magnetic sensor senses a first magnetic field reading when in the first position and senses a second magnetic field reading when in the second position. A control module is operably connected to the magnetic sensor and configured for controlling the electric device, and a magnetic shielding element is positioned within the control assembly housing to alleviate a magnetic signal source external to the control assembly from interfering with the sensing by the magnetic sensor.

Abstract: A control knob for controlling operation of a machine, the control knob including: an attachment surface configured for attaching the control knob to a surface of the machine; a display member comprising an electronic display module disposed thereon; a motion sensor configured for sensing motion of the user's hand, said sensor being operably-connected to the display member such that, responsive to the motion sensor sensing motion of the user's hand, the display member is configured to switch operation from a sleep mode into an active mode; an operational mode display controller for controlling display of operational modes of the machine upon the electronic display module, said operational mode display controller being configured for rotational movement around the electronic display module amongst a plurality of rotational positions, said operational mode display controller being operably connected with the electronic display module such that, responsive to the rotational movement of the operational mode displ

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.

Abstract: A trigger switch assembly for use with an electrical device, including: a switch housing; a switch circuit disposed within the switch housing; an actuator rod configured for operable-interaction with a contact lever of the switch circuit; a trigger member having an actuator rod engagement recess configured for receiving a first end of the actuator rod therein, and, a finger-engagement portion configured for engagement by a user's finger so as to urge the actuator rod along the movement axis from the OFF position in to its ON position; and a lock-off mechanism.

Abstract: A variable-speed control assembly for use in controlling speed of an electric motor of an electric device, the variable-speed control assembly including: a housing; a speed signaling circuit module located within the housing including a pair of spaced-apart electrically-conductive stationary contact members and a movable electrically-conductive contact member configured for movement relative to the pair of stationary contact members between at least one of an OFF position in which the movable contact member does not electrically connect the pair of stationary contact members, and, a plurality of ON positions in which the movable contact member electrically connects the pair of stationary contact members such that an electric current supplied to the speed signaling circuit module from a power supply of the electric device is able to flow between the pair of stationary contact members via the movable contact member; wherein the movable contact member includes an elastically-deformable material configured for de

Abstract: An electrical switch device including a switch housing having first and second compartments separated by a partition; an electrical switch assembly disposed in the second compartment; a control knob configured for seating adjacent to the first compartment, and having a user engagement portion and a plunger configured to extend from user engagement portion from the first compartment in to the second compartment via an opening in the partition separating the first and second compartments when the control knob is seated, and said plunger being configured for movable interaction with the electrical switch assembly; and a sealing member including a base portion configured for securing of the sealing member to the housing, and, a tubular portion extending from the base portion and configured to surround the plunger so as to alleviate ingress of liquid from the first compartment in to the second compartment via the opening in the partition.

Abstract: A control assembly for use in controlling a speed of operation of an electric device, the control assembly including: a control assembly housing; a magnetic sensor; a magnetic element; an actuator that is configured for movement relative to the control assembly housing wherein responsive to said movement of the actuator relative to the control assembly housing, the magnetic sensor and magnetic element move relative to each other between at least one of a first position and a second position such that the magnetic sensor senses a first magnetic field reading when in the first position and senses a second magnetic field reading when in the second position; and, a control module operably connected to the magnetic sensor and configured for controlling the electric device to operate in at least one of a first speed and a second speed by reference to an output of the magnetic sensor indicative of the sensed first magnetic field reading and the second magnetic field reading respectively.

Abstract: A control assembly for controlling a speed or torque of operation of an electric device includes a control assembly housing, a magnetic sensor, a magnetic element; and an actuator. The actuator moves relative to the control assembly and, responsive to that movement, the magnetic sensor and magnetic element are moved relative to each other between a first position and a second position so that the magnetic sensor senses a first magnetic field reading when in the first position and senses a second magnetic field reading when in the second position. A control module is operably connected to the magnetic sensor and configured for controlling the electric device, and a magnetic shielding element is positioned within the control assembly housing to alleviate a magnetic signal source external to the control assembly from interfering with the sensing by the magnetic sensor.

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 c

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.

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