A switch assembly and method for use with power equipment, the switch assembly comprises a housing assembly for having an actuator opening, the opening defining spaced first and second internal housing positions and a removably located actuator for selectively positioning within the opening of the housing assembly for altering the operation of power equipment. The switch assembly further includes a first switch corresponding to the first housing position to selectively provide power to one or more components of the power equipment and a second switch corresponding to the second housing position such that the second switch is spaced away from the first housing position, the second switch for detecting the presence and position of the actuator such to further alter the operation of power equipment.

The invention proposes a key module for a key of a keyboard. The key module includes a module base, a module cover that can be coupled with the module base and a key tappet for coupling a keycap that is translucent in at least one symbol section. The module base includes at least one through-hole between a bottom section of the key module and the module cover. The module cover includes a section that is translucent for the light from a light source. The light source is a color-changeable light source for backlighting the symbol section of the keycap. The translucent section of the module cover is aligned with the at least one through-hole when the module cover is coupled to the module base.

A module cover comprising a through-hole for a passage of a key tappet of the key, a light injection region for injecting light from a light source into the module cover, a first light output region for outputting a first portion of the light, and a second light output region for outputting a second portion of the light out of the module cover. The first light output region and the second light output region, and a first light directing portion and a second light directing portion, are arranged on different sides of the through-hole. The first light directing portion directs a first portion of the light to the first light output region and a second portion of the light to the second light directing portion, and the second light directing portion directs at least part of the second portion of the light to the second light output region.

A replaceable key structure includes a key holder and a circuit board. The key holder is disposed above a circuit board. The key holder is formed with a mounting slot for selectively receiving a first key module or a second key module therein. A magnetic sensor and a contact connector are disposed on the circuit board positionally corresponding to the mounting slot of the key holder. The first key module has a shaft, and a magnetic element disposed on the bottom of the shaft. The magnetic sensor can output an analog signal when the magnetic element approaches. The second key module has a trigger switch which has two electrical terminals disposed on the bottom surface of the second key module. When the second key module is installed in the mounting slot, the electrical terminals can be electrically connected to the contact connector.

A replaceable key structure includes a key holder and a circuit board. The key holder is disposed above a circuit board. The key holder is formed with a mounting slot for selectively receiving a first key module or a second key module therein. A magnetic sensor and a contact connector are disposed on the circuit board positionally corresponding to the mounting slot of the key holder. The first key module has a shaft, and a magnetic element disposed on the bottom of the shaft. The magnetic sensor can output an analog signal when the magnetic element approaches. The second key module has a trigger switch which has two electrical terminals disposed on the bottom surface of the second key module. When the second key module is installed in the mounting slot, the electrical terminals can be electrically connected to the contact connector.

A module cover (140) for a key module (120) for a key (100) comprises the following features. A through-hole (152) for a passage of a key tappet (150) of the key (100), a light injection region (141) for injecting light from a light source (110) into the module cover (140), a first light output region (144) for outputting a first portion of the light a second light output region (148) for outputting a second portion of the light out of the module cover (140), wherein the first light output region (144) and the second light output region (148) are arranged on different sides of the through-hole (152), and a first light directing portion (142) and a second light directing portion (146), which are arranged on different sides of the through-hole (152), wherein the first light directing portion (142) is formed to direct a first portion of the light to the first light output region (144) and a second portion of the light to the second light directing portion (146), and wherein the second light directing portion (146) is formed to direct at least part of the second portion of the light to the second light output region (148).

A lifting key and an electronic device are provided. The lifting key includes a key body, telescopically arranged on an installation body; and a transmission module, movably arranged on the installation body. The transmission module is arranged opposite to the key body. The lifting key further includes a drive module. The drive module includes a drive part and a power transmission mechanism connected with the drive part. The drive part includes at least a shape memory alloy part, and the power transmission mechanism is arranged opposite to the transmission module. The lifting key also includes a metal contact. The metal contact is arranged between the key body and the transmission module. When powered on, the shape memory alloy part deforms, and drives, sequentially through the power transmission mechanism, the transmission module and the metal contact, the key body to extend relative to the installation space. The electronic device includes the lifting key.

A keyboard includes a circuit board module and a key module. The key module includes a keycap, a connecting seat, a connecting assembly and an elastic member. The connecting seat is disposed on the circuit board module. The connecting seat has an opening. One end of the connecting assembly connects to the keycap, and the other end connects to the connecting seat. The elastic member is disposed in the opening of the connecting seat, and the connecting seat presses against the elastic member.

An electronic device includes a support member, an ornamental member that is assembled to face one face of the support member, and an operating member that is disposed on the support member to be partially exposed to the outside through the ornamental member. The operating member includes a body that is positioned on one face of the support member to be exposed through the ornamental member, and at least one pair of fastening pieces, each of which extends from the body to be fastened to the support member. Other embodiments are also disclosed.

A rotor shaft module for a rotor shaft of a molded-case circuit breaker, includes a module body including an electrically insulating first material, the module body including a receptacle for a contact element of the molded-case circuit breaker. The rotor shaft module includes at least one coupling apparatus for connection to an opposing coupling apparatus of a further rotor shaft module. In addition, disclosed are a rotor shaft for a molded-case circuit breaker includes at least two coupled rotor shaft modules; a molded-case circuit breaker including a rotor shaft; and a method for producing a rotor shaft module for a rotor shaft of a molded-case circuit breaker.