An adapter assembly configured to be coupled to a surgical loading unit includes a switch, an elongated member, and an annular member. The switch is configured to be toggled in response to the surgical loading unit being coupled to the adapter assembly. The elongated member is in communication with the switch and is resiliently biased in a distal direction toward a locking position in which the switch is toggled. The annular member is disposed adjacent the elongated member and is rotatable between a first orientation, in which the annular member prevents distal movement of the elongated member, and a second orientation, in which the elongated member moves distally to toggle the switch.

A switch comprises a first elastic element, an actuator-element mechanically coupled to a first side of the first elastic element, and a first switching conductor, mechanically coupled to a second side of the first elastic element. The switching conductor is configured for moving between a first conductor position and a second conductor position. The actuator-element is configured from moving between a first actuator-element position and a second actuator-element position separated by a predefined actuator-element lift, thereby moving the first side of the first elastic element. The first elastic element moreover is configured for converting a movement of the first side of the first elastic element by the predefined actuator-element lift into the movement of the second side of the first elastic element with a predefined elastic force.

An electronic module for protecting power semiconductor devices of an HVDC converter against high current surges and damaging electrical discharges includes a capacitor, a short circuit device, a movable portion, a short circuit portion and a spring element. The short circuit device is connected in parallel with the capacitor and has first and second busbars. The movable portion is connected to the first busbar and the short circuit portion is connected to the second busbar. The spring element is arranged between the movable portion and the short circuit portion. When a short circuit current flows through the first busbar, an electromagnetic force between the busbars causes the first busbar to repel the second busbar and move towards the short circuit portion. The latter provides a short circuit path connecting the first busbar to the second busbar short circuiting the capacitor and bypassing the power semiconductor devices of the HVDC converter.

A key sound generation device for a silicone keyboard includes a seat and a press block. The seat or the press block is provided with a torsion spring. The press block is biased by the torsion spring to move up so that the product provides better handfeel. Meanwhile, when the press block is pressed or released, the torsion spring hits the seat or the press block to produce a sound, providing a better auditory effect.

A key sound generation device for a silicone keyboard includes a seat and a press block. The seat or the press block is provided with a torsion spring. The press block is biased by the torsion spring to move up so that the product provides better handfeel. Meanwhile, when the press block is pressed or released, the torsion spring hits the seat or the press block to produce a sound, providing a better auditory effect.

The present disclosure relates to a circuit breaker comprising: a circuit breaking part in which contact points of a fixed contact and a movable contact are in contact with each other; and an energy accumulation part for accumulating energy of a closing spring for controlling contact between the fixed contact and the movable contact, wherein the energy accumulation part comprises: an electromotive energy accumulation part; and a manual energy accumulation part separated from the electromotive energy accumulation part by a manual energy accumulation spring, and engaged with the electromotive energy accumulation part by unit of external pressure so as to transmit an inputted rotational force to the electromotive energy accumulation part, thereby accumulating the energy of the closing spring.

A keyboard switch comprises an upper cover (1), a base (2), a fixed terminal (3), a movable terminal (4) and a pressing component (5). A guide column (21) is disposed on the base, the pressing component is installed on the guide column on which a return spring (8) is fitted, the upper end of the pressing component is exposed out of the upper cover for pressing, and the upper cover is fastened to the base to form a cavity, the fixed terminal and the movable terminal are disposed on one side of the pressing component in the cavity, and one end of the fixed terminal and one end of the movable terminal penetrate out of the base to be connected to an external circuit. The pressing component moves up and down to drive the movable terminal to move, and further to control contact and disconnection between the other end of the movable terminal and the other end of the fixed terminal. Further, an elastic auxiliary component for interfering with the pressing component to enhance the pressing sense is disposed on the other side of the pressing component, and the pressing component interferes with the elastic auxiliary component while moving up and down to drive the movable terminal. The keyboard switch makes full use of the inner space of the switch and an auxiliary device is added in the switch, so that the switch has good touch and voice, a simple structure and a long life.

An input device includes at least one key structure and a film circuit board disposed below the key structure. The key structure includes a top cover, a plunger, a sleeve, a rod, a first elastic element, a second elastic element and a bottom cover. The plunger is assembled on the top cover and has a protruding portion protruding from a first opening of the top cover and a guiding portion. The sleeve is assembled inside the plunger. The rod is movably disposed in the sleeve. The first elastic element is disposed in the rod, wherein the guiding portion passes through the first elastic element so that a first end of the first elastic element leans against the plunger. The bottom cover having a second opening locks the top cover. A second end and a third end of the second elastic element respectively lean against the sleeve and the bottom cover.

A high-voltage earthing switch is disclosed. A static contact of the earthing switch is connected with the first end of a conductive copper busbar. The second end of the conductive copper busbar is connected with a transformer. The conductive copper busbar includes a first segment and a second segment connected with the first segment. The first segment is one straight segment and an end is taken as an end the first end of the conductive copper busbar. The first segment is parallel to the instantaneous action direction of the moving contact when a moving contact engages the static contact. The first segment extends from the static contact in the direction opposite to the instantaneous action direction of the moving contact when the moving contact engages the static contact. The second segment is connected with the other end of the first segment, and extends towards the side of the first segment facing away from the moving contact. The second segment is located at one side of an extended line of one end of the contacting finger connected with the moving contact when the earthing switch switching-on in the direction opposite to the instantaneous action direction at the moment when the moving contact engages the static contact. An electromotive force between the conductive copper busbar and the contacting finger of the earthing switch of the invention may have a positive effect on a switching-on.

A thin switch includes a pressing cup (1), a base (2) and a top cover (3). A conductive component (4), a spring (5), a fixed terminal (6) and an elastic wire (7) are disposed in a space defined by buckling the base and the top cover. The elastic wire is arranged below the conductive component, one end of the elastic wire is fixed on the base and the other end is disposed under a boss of the pressing cup. When the pressing cup is pressed down, the conductive component is driven to contact the fixed terminal to turn on the switch, and the elastic wire is driven to descend at the same time. When the pressing cup is pressed down to a preset position, the elastic wire separates from the pressing cup, and bounces back upwards to strike the dome to make a sound.