A switch assembly, a switch assembly starting method and a power tool are provided. The switch assembly includes a housing, a main control switch accommodated in the housing, a locking switch and a trigger switch arranged on the housing. An end of the trigger switch is accommodated in the housing and is in contact with the main control switch. An end of the locking switch is in contact with the trigger switch. The locking switch has a locking position and a releasing position, when the locking switch is in the locking position, the locking switch limits the trigger switch in a locked state, and the main control switch cannot be started; when the locking switch is in the releasing position, the locking switch is positioned beside the trigger switch and limits are removed, the trigger switch is in the release state, and the main control switch can be started.

The present disclosure provides a switching device, which includes an electricity leading member, a power transmission member, and a conductive connecting member. The first end of the electricity leading member is configured to be electrically connected with the power supply terminal, and the second end of the electricity leading member is provided with a first contact portion; the power transmission member is provided with a second contact portion, and the second contact portion is configured to contact and be electrically connected with the first contact portion; one end of the conductive connecting member is connected with the electricity leading member, the other end is connected with the power transmission member, the electricity leading member is electrically connected with the power transmission member through the conductive connecting member.

The disclosure provides a switch assembly, a switch assembly starting method and a power tool. The switch assembly comprises a housing, a main control switch accommodated in the housing, a locking switch and a trigger switch arranged on the housing. An end of the trigger switch is accommodated in the housing and is in contact with the main control switch. An end of the locking switch is in contact with the trigger switch. The locking switch has a locking position and a releasing position, when the locking switch is in the locking position, the locking switch limits the trigger switch in a locked state, and the main control switch cannot be started; when the locking switch is in the releasing position, the locking switch is positioned beside the trigger switch and limits are removed, the trigger switch is in the release state, and the main control switch can be started.

An electrical switch unit for use in controlling operation of an electrical device, the electrical switch unit including: an electrical switch unit housing for housing at least a pair of electrical switching contacts of the electrical switch unit, said electrical switch unit housing including a first housing member and a second housing member that are configured for attachment together at peripheral regions of the first and second housing members so as to cooperatively form an enclosed space for housing the pair of electrical switching contacts therein; an actuator member operably-connected with at least one of the pair of electrical switching contacts, the actuator being configured for movement relative inwardly and outwardly of an opening in the electrical switch unit housing so as to arrange the pair of electrical switching contacts into at least one of a closed configuration wherein power is able to be supplied from a power source to motor or other electrically-operable element of the electrical device via the pair of electrical switching contacts, and, an opened configuration wherein power is not able to be supplied from the power source to the motor or other electrically-operable element of the electrical device via the pair of electrical switching contacts; and an sealing element including an elastically-resilient polymeric material, said sealing element being configured for location between the first and second housing members and extending about the peripheral regions of the attached first and second housing members so as to occlude passage and ingress of particulates and water into the electrical switch unit housing.

The invention provides an electric drill including a bracket with a handle, a drill rod, a motor assembly, and a switch assembly. The switch assembly includes a first micro switch configured to activate or deactivate the motor assembly, a switch pivotably mounted on the handle through a pivot and cooperating with the first micro switch, and a self-locking button engaged with the switch and configured as: when the self-locking button is in a first state, the self-locking button abuts against the switch to prevent the switch from rotating around the pivot; when the self-locking button is in a second state, the self-locking button is disengaged with the switch, and the switch can rotate around the pivot.

An electrical connector can be provided for connecting a power source to an insertable conductor, including an igniter for exothermic weld material. One or more conductors can be disposed within a housing that is configured to receive the insertable conductor. An actuator can be engaged from outside the housing to move at least one of the conductors within the housing between resting and actuated orientations.

A signal switch for a power tool has a paddle supported by a rocker that extends into a switch housing to pivot an actuating member. A circuit board is attached to a bottom of the switch. At least one micro-switch extends from the circuit board into the switch in position to be actuated by the actuating member depending on a position of the paddle. The circuit board includes a connector that is configured to connect to a cable, such as a ribbon cable. Circuit traces on the circuit board are electrically connected to the micro-switches and the electrical connector. The interior of the switch housing is sealed from the exterior environment so that the mechanical components of the switch are shielded from the environment.

A hand-held power tool, in particular a screwdriver, includes an elongate housing, in which is arranged a drive motor for driving an insertion tool, which can be arranged in an associated tool holder. The housing has a grip region, in which is arranged at least one operating element for activating the drive motor. A sliding switch for activating reversing operation of the drive motor is arranged on the housing. In order for the grip region to be formed ergonomically to provide for a first and second possible grip position of the housing, the sliding switch and the operating element are arranged in the vicinity of one another in the longitudinal direction of the housing such that the operating element and the sliding switch can be operated using one finger.

A power tool includes an electric motor, an output member selectively driven by the electric motor and a battery receptacle configured to receive a battery. The power tool also includes a switch trigger moveable between a first position and a second position. The switch trigger inhibits electrical communication between the battery and the electric motor while the switch trigger is in the first position. The switch trigger operates a switch to provide electrical communication between the electric motor and the battery while the switch trigger is in the second position. A lock actuator prevents movement of the switch trigger to the second position while the lock actuator is in a locked position, and the lock actuator permits movement of the switch trigger to the second position while in an unlocked position. The lock actuator is biased into the unlocked position while the battery is positioned in the receptacle.

A hand-held power tool, in particular an angle grinder, includes a tool receiver, a tool housing, and a drive motor arranged in the tool housing. The drive motor is configured to be switched on and off via an electric On/Off switch for driving the tool receiver. The hand-held power tool also includes an actuating device configured to actuate the On/Off switch. The actuating device has a pivotably mounted actuating element and a pivotably mounted pawl that is configured to be coupled to the actuating element. The pawl is further configured, in a free-running state, to move pivotably relative to the actuating element and, in an actuation state, to exert upon the actuating element an actuating force that actuates the actuating device.