A push switch includes a housing, a fixed contact member, a movable contact member, and a first pressing member. The housing includes an opening and a compartment, the movable contact member includes a dome that protrudes toward the opening and is invertible, and the first pressing member includes a first fulcrum portion, a first load portion, and a first effort portion. The first fulcrum portion is disposed on one side of the first pressing member to contact the housing, the first load portion is disposed on another side of the first pressing member to press the movable contact member, and the first effort portion is disposed between the first fulcrum portion and the first load portion. Upon the first effort portion being pressed through the opening, the first load portion presses and inverts the dome of the movable contact member, and the movable contact member contacts the fixed contact member.

A push switch includes a housing, a fixed contact member, a movable contact member, and a first pressing member. The housing includes an opening and a compartment, the movable contact member includes a dome that protrudes toward the opening and is invertible, and the first pressing member includes a first fulcrum portion, a first load portion, and a first effort portion. The first fulcrum portion is disposed on one side of the first pressing member to contact the housing, the first load portion is disposed on another side of the first pressing member to press the movable contact member, and the first effort portion is disposed between the first fulcrum portion and the first load portion. Upon the first effort portion being pressed through the opening, the first load portion presses and inverts the dome of the movable contact member, and the movable contact member contacts the fixed contact member.

An apparatus and system for a side actuator arrangement as well as a substrate, and method of manufacturing, for a side actuator arrangement. The apparatus includes a first part and a second part. The first part is configured to mechanically interlock with an edge of a substrate so as to prevent movement of the apparatus with respect to the substrate in a direction parallel to the edge of the substrate. The second part is configured to receive an actuatable conductive member such that, when the conductive member is actuated, the conductive member is able to be brought into contact with at least a first region of the edge of the substrate.

An apparatus and system for a side actuator arrangement as well as a substrate, and method of manufacturing, for a side actuator arrangement. The apparatus includes a first part and a second part. The first part is configured to mechanically interlock with an edge of a substrate so as to prevent movement of the apparatus with respect to the substrate in a direction parallel to the edge of the substrate. The second part is configured to receive an actuatable conductive member such that, when the conductive member is actuated, the conductive member is able to be brought into contact with at least a first region of the edge of the substrate.

A key for user input having superior tactile qualities. The key is suspended by a magnetic field force to improve the smoothness of motion. Two compact interleaved members link a keycap to a key base to provide highly precise parallel travel with reduced tilt and flexion, and improved durability.

A key for user input having superior tactile qualities. The key is suspended by a magnetic field force to improve the smoothness of motion. Two compact interleaved members link a keycap to a key base to provide highly precise parallel travel with reduced tilt and flexion, and improved durability.

A keyswitch uses a combination of springs connected in serial for providing a return force to a keycap of the keyswitch. When the keycap moves toward a base of the keyswitch beyond a transition position, one of the springs stops continuously deforming. It leads to an increment of the elastic coefficient of the combination of springs and an increment of the elastic stored energy by the combination of springs. Therefore, during a pressing on the keycap, the keycap can provide a light force feedback and then a heavy force feedback to a user. Further, the keyswitch can use a switch with a lateral motion, which can reduce influence of a resilient force produced by the switch on the up and down movement of the keycap. The keyswitch also can use an elastic piece disposed beside the keycap, which can provide a tactile feedback to the user.

A keyswitch uses a combination of springs connected in serial for providing a return force to a keycap of the keyswitch. When the keycap moves toward a base of the keyswitch beyond a transition position, one of the springs stops continuously deforming. It leads to an increment of the elastic coefficient of the combination of springs and an increment of the elastic stored energy by the combination of springs. Therefore, during a pressing on the keycap, the keycap can provide a light force feedback and then a heavy force feedback to a user. Further, the keyswitch can use a switch with a lateral motion, which can reduce influence of a resilient force produced by the switch on the up and down movement of the keycap. The keyswitch also can use an elastic piece disposed beside the keycap, which can provide a tactile feedback to the user.

A doorbell system and a doorbell control device are provided. The doorbell system includes a doorbell control device, a transformer, and a doorbell interface device. The doorbell control device has a first pin, a second pin, and a third pin. The doorbell control device includes a speaker unit and a control unit. The control unit is configured to control whether or not the speaker unit produces sound according to a current or a voltage of the second pin. The first pin is coupled to the second pin. The transformer outputs an AC voltage to the first pin and the third pin of the doorbell control device. The doorbell interface device is coupled to the second pin and the third pin of the doorbell control device.

A switch includes a switch housing having a receiving space, a conductive fixed contact element and a conductive active contact element which are provided in the receiving space and being electrically connected to two terminals of the switch respectively, an actuating member reciprocating movable in a predetermined actuating direction between a rest position and an actuated position, and a conductive spring contact element movable with the actuating element. The spring contact element is in constant contact with the fixed contact element and switched between a state of being in contact with a conductive contact surface of the active contact element and a state of being disconnecting with the conductive contact surface of the active contact element. The actuating element is moved back from the actuated position to the rest position due to spring force of the spring contact element.