What is presented is a key module (110) for a keyboard. The key module (110) comprises a key tappet (220) comprising a coupling portion for coupling to a keycap for the key module (110). The key module (110) also comprises a module housing (230) formed to movably accommodate the key tappet (220), in order to enable a translational actuation movement of the key tappet (220) between a rest position and an actuated position relative to the module housing (230). The key module (110) further comprises a wire bracket (560) for providing tactile and/or acoustic feedback. The wire bracket (560) is elastically deflectable in the course of the actuation movement. The wire bracket (560) is bent with an overall bending angle of less than 360 degrees. The wire bracket (560) is fixed to the key tappet (220).

A control device includes a button assembly having one or more buttons and a button carrier that includes a plurality of resilient, independently deflectable spring arms. The control device may be configured as a wall-mounted keypad to control a load control device, or as a thermostat to control a temperature regulation appliance. The button carrier may be configured to prevent interference between the buttons during operation of the control device. The button assembly may be captured between a faceplate of the control device and a housing that is attached to a rear side of the faceplate. The control device may include one or more button retainers that are attached to the buttons and that are configured to align respective outer surfaces of the buttons relative to each other, and relative to the faceplate of the control device, when the buttons are in respective rest positions.

A keyswitch includes a bottom board, a cap structure, a lifting mechanism, and an elastic member. The lifting mechanism is detachably connected to the cap structure and the bottom board to make the cap structure movable upward and downward relative to the bottom board. The elastic member is connected to the cap structure so as to be detached from the lifting mechanism together with the cap structure when the cap structure is separate from the lifting mechanism.

A control device includes a button assembly having one or more buttons and a button carrier that includes a plurality of resilient, independently deflectable spring arms. The control device may be configured as a wall-mounted keypad to control a load control device, or as a thermostat to control a temperature regulation appliance. The button carrier may be configured to prevent interference between the buttons during operation of the control device. The button assembly may be captured between a faceplate of the control device and a housing that is attached to a rear side of the faceplate. The control device may include one or more button retainers that are attached to the buttons and that are configured to align respective outer surfaces of the buttons relative to each other, and relative to the faceplate of the control device, when the buttons are in respective rest positions.

An electronic switch and control module for a power tool having an electric motor is provided. The module includes a module housing including a bottom surface, side walls, and an open face, a printed circuit board (PCB) received from the open face of the module housing and securely disposed within the module housing at a distance from the bottom surface of the module housing; power switches mounted on a top surface of the PCB, and heat sinks discretely arranged and each mounted over a respective one of the plurality of power switches and secured to the top surface of the PCB to transfer heat away from the power switch through the open face of the module housing. The module further includes an input unit having conductive tracks disposed on the PCB and an electro-mechanical element engaging the plurality of conductive tracks, the input unit generating a signal for controlling a switching operation of the plurality of power switches, and a controller mounted on the PCB configured to control the switching operation of the power switches based on the signal from the input unit.

A restoration assembly of a button switch includes first and second sleeves, and a spring disposed between the two sleeves. A first outer diameter of the first sleeve is less than a second inner diameter of the second sleeve to make the second sleeve movably jacket outside the first sleeve. The jacketed first and second sleeves are disposed between a key cap and a base of the button switch. The spring has a first end portion, a second end portion and a middle section. A middle outer diameter of the middle section of the spring is larger than a first inner diameter of the first sleeve. During the spring being compressed along with the key cap being pressed downward, the middle section is squeezed to shrink and slide into the first sleeve through an end edge of the first sleeve, thereby producing a tactile feedback and/or a first sound.

A signal input module includes: a key body; a key base coupled to a lower portion of the key body, and having fixing portions of different heights at both sides thereof; a flexible printed circuit board disposed such that an upper surface thereof is covered by the key base, and having a dome portion on a rear surface thereof, the dome portion configured to generate a signal when pressed by the key base; and a light emitting portion formed on one surface of the flexible printed circuit board, wherein the fixing portion and the key base are connected to each other by a connection portion, wherein the connection portion is bent from one end of the key base, extends toward the fixing portion, wherein the connection portion is provided with a hole, and wherein the flexible printed circuit board is disposed to cross the hole. Under such configuration, the number of components can be reduced and the signal input module can have a slim configuration.

A control device includes a button assembly having one or more buttons and a button carrier that includes a plurality of resilient, independently deflectable spring arms. The control device may be configured as a wall-mounted keypad to control a load control device, or as a thermostat to control a temperature regulation appliance. The button carrier may be configured to prevent interference between the buttons during operation of the control device. The button assembly may be captured between a faceplate of the control device and a housing that is attached to a rear side of the faceplate. The control device may include one or more button retainers that are attached to the buttons and that are configured to align respective outer surfaces of the buttons relative to each other, and relative to the faceplate of the control device, when the buttons are in respective rest positions.

A trigger switch according to one or more embodiments may include a pressure sensor such as a pressure sensitive element that detects a depressed amount of a trigger in response to a depressing operation on the trigger. A trigger switch may include a trigger movable in response to a depressing operation, an urging member including a first end in contact with the trigger and a second end and urging the trigger in a direction opposite to a depressing direction in which the trigger is depressed, an elastic member in contact with the second end of the urging member, and a pressure sensor in contact with the elastic member to detect pressure applied from the elastic member.

A fingerprint reader/power button system includes a base member defining base leg apertures extending into the base member. A spring member engages the base member to provide a spring force that is directed away from the base member. Spring legs on the spring member define respective spring leg apertures that are located adjacent respective base leg apertures. A support member engages the spring member and includes support legs that are configured to extend through the spring leg apertures and into the base leg apertures. A power actuator element connected to the support member is configured to engage a power actuator engagement element when an actuation force on the support member overcomes the spring force. A fingerprint reader connected to the support member is configured to read a fingerprint from a finger that engages a fingerprint reader surface on the fingerprint reader.