Abstract: The present disclosure relates to a modular current limiting resistor comprising a plurality of plate resistors, wherein the plate resistors each comprise a pair of coupling pieces and a conducting line integrally formed with the coupling pieces and having a zigzag shape between the coupling pieces; a pair of support frames which support the stacked plate resistors; a plurality of coupling members which pass through one of the support frames, pass the coupling pieces, and are inserted into the plate resistors; a plurality of conductor rings disposed between the plate resistors while passing through and being inserted into the coupling members, and which electrically connect the conducting line on each of the plate resistors; and at least one unit module comprising a plurality of insulating rings disposed between the plate resistors while passing through and being inserted into the coupling members so as to insulate the plate resistors.

Abstract: The utility model discloses an automatic balance apparatus with a double-moving-contact spring leaf in a socket, which may ensure that two moving contacts are in good contact with corresponding stationary contacts. The automatic balance apparatus includes a lifting slide block, where the lifting slide block is provided with a lifting base below the spring leaf, a balance warped plate corresponding to an arrangement direction of moving contacts is movably disposed in the lifting base, and upward protruding portions are respectively disposed on two sides of the top surface of the balance warped plate. The utility model is particularly applicable to various ground fault circuit interrupters (GFCIs) and arc fault circuit interrupters (AFCIs).

Abstract: The invention provides a switch device including a shell, an operating member, a spring, a movable conductor, a first pin, a second pin, two resistors, and two connecting conductors. The operating member is partially exposed out of the shell, and the movable conductor is displaced when the operating member is operated. One side of the shell is provided with the first pin and the spring, another side is provided with the second pin. The resistors are connected with the second pin and have different resistance values. The connecting conductors are arranged between the two pins. The first pin contacts with the movable conductor. The connecting conductors without disposal of any crossover part therebetween and respectively connected with the resistors. The connecting conductors are arranged at intervals along a displacement path of the movable conductor which contacted one connecting conductor before and after displacement and forming two conductive paths.

Abstract: A key structure includes a circuit board, a triggering part and an elastic element. The elastic element includes an upper support portion, a lower support portion, an upper elastic portion and a lower elastic portion. The lower support portion is located beneath the upper support portion and connected to a peripheral region of the circuit board. The upper elastic portion is connected between the triggering part and the upper support portion. The lower elastic portion is connected between the upper support portion and the lower support portion. The lower elastic portion includes a first section and a second section connected to each other. The first section is connected to the upper support portion. The second section is connected to the lower support portion. There is a vacant space between the second section and the circuit board.

Abstract: A switching unit for switching an electrical current, the unit comprising separable fix and mobile electrical contacts and a mechanism capable of switching over the contacts between a closed state and an open state. The mechanism comprises a switching shaft coupled to a mobile electrical contact, a trip hook mounted to be pivoted on a fixed support of the mechanism and comprising a bore in which is housed an abutment and a link system coupling the switching shaft to the trip hook. The link system comprises an articulated linkage, which is rotationally linked with respect to the trip hook and which comprises a main bearing surface, which bears on the abutment when the switching mechanism is in the closed state. The abutment is configured to be elastically deformed when the switching mechanism passes from the open state to the closed state and the linkage exerts an effect on the abutment, so as to damp the impact of the linkage on the abutment.

Abstract: An improved switching device includes a guide configured to reduce undesired movement of the switching element. The guide includes an upper portion configured to receive the switching element and a lower portion configured to receive a spring. The upper portion defines a seat to receive the switching element and includes at least one resilient tab to retain the switching element within the guide. The lower portion defines an opening in which the spring is positioned, where the spring is seated, in part, against the switching element and against the guide. The guide includes guide portions configured to engage a housing on the switching device to prevent rotation of the switching element within the switching device. The switching element further includes protrusions configured to engage each side of the guide and to prevent longitudinal movement of the switching element within the housing.

Abstract: A key module (110) for a keyboard is presented. The key module (110) comprises a key tappet (220). The key tappet (220) comprises a coupling portion (322) for coupling with a keycap for the key module (110). The key tappet (220) comprises at least one guiding portion (326, 328) for guiding a translational actuation movement of the key tappet (220) between a rest position and an actuated position. The key tappet (220) comprises at least one tappet stop (324) for limiting the actuation movement. The key module (110) also comprises a trigger element (350) for triggering a switch signal of the key module (110) in response to the actuation movement. The trigger element (350) is attachable to the key tappet (220). The key module (110) further comprises a module housing (230), wherein the module housing (230) is integrally formed. The module housing (230) comprises at least one positioning protrusion (334) for positioning the key module (110) and a circuit substrate of the keyboard.

Abstract: 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).

Abstract: In a switch device, a switch part is turned ON/OFF by operation of an operating knob housed in a recessed part of a panel so that a movable terminal and a fixed terminal are in contact or are separated. An outside face, opposing an inner peripheral face of the recessed part of the panel, of the operating knob is an inclined face that is inclined inward of the operating knob in going downward. A gap that widens in going downward is formed between the outside face of the operating knob and the inner peripheral face of the recessed part of the panel. Accordingly, the device can ensure stable operation of the operating knob by discharging, from the gap between the panel and the operating knob, liquid that has entered the gap, and that can improve the appearance.

Abstract: Handle assemblies for circuit breakers are disclosed. One illustrative handle assembly includes a housing defining a first aperture, a seal extending around a perimeter of the first aperture, a handle extending outwardly through the first aperture and pivotable about a pivot axis located within the housing, a shroud coupled to the handle to move therewith and located at least partially within the housing, and a biasing member connected to the handle and to the shroud. The shroud includes an outer surface that faces the seal, and the biasing member biases the outer surface into continuous engagement with the seal throughout an entire pivotable range of the handle.

Abstract: A control device for a human-machine interface includes a base and a moveable member in the form of a lever or a push element, which can be moved relative to the base. The control device further includes at least one electroactive element positioned between the moveable member and a fixed element of the base.

Abstract: A user interface includes a front panel that has an exterior surface and an interior surface. A flange outwardly extends from the exterior surface and defines a notch. A receiving body extends from the interior surface of the front panel that is proximate the flange. A receiving body has an angled edge and defines a drainage channel that extends through a portion of the notch that is defined by the flange.

Abstract: A pressure sensitive sensor is composed of a cylindrical shape body including therein an inner peripheral surface and a hollow portion along a longitudinal direction of that cylindrical shape body, and being made of an elastic electrical insulating member, and a plurality of electrode wires arranged in a helical shape along the inner peripheral surface of the cylindrical shape body, and arranged in such a manner as to have no contact with each other. In the pressure sensitive sensor, in a cross-sectional view perpendicular to the longitudinal direction of the cylindrical shape body, at least some part of the inner peripheral surface of the cylindrical shape body lying between adjacent ones of the plurality of the electrode wires on the inner peripheral surface of the cylindrical shape body is formed in an inner side in radial directions of a circle passing through centers of the plurality of the electrode wires.

Abstract: A keyswitch device includes a connecting member and a keycap. The connecting member has an engaging shaft. The keycap includes a pressing body and a shaft hole structure. The pressing body has a bottom surface. The shaft hole structure is connected to the bottom surface and has an engaging trough and an inlet passage communicated with each other. The engaging shaft is rotatably engaged in the engaging trough. The inlet passage has a first inner wall and a second inner wall opposite and parallel to each other. The first inner wall and the second inner wall are inclined relative to the bottom surface of the pressing body.

Abstract: The invention provides an axially actuating tactile electrical switch comprising a casing; a plurality of independent fixed electrical contacts arranged in a base of the casing, and a movable electrical contact comprising a peripheral portion resting on a portion of a fixed peripheral electrical contact and a central portion movable vertically downwards; a single piece actuating body made of elastic material comprising a peripheral portion, an actuating central part comprising a lower portion for actuating the movable electrical contact, and an upper portion for receiving an actuating force, forming a casing comprising an upper cover having a hole whereby a free upper end section of the upper portion extends axially; the cover has an internal retaining surface; and the actuating body has an abutment surface cooperating with the internal retaining surface of the cover to determine an upper rest position of the actuating body with respect to the casing.

Abstract: A waterproof film includes a film reinforcing layer, a light shielding layer, a texture layer, and a pattern. The light shielding layer is combined under the film reinforcing layer and forms a plurality of protruding structures cooperatively with the film reinforcing layer by a hot pressing process. The texture layer is attached to a release film and then formed on a top surface and a side surface of each protruding structure after a hot pressing process is performed and the release film is then peeled. The pattern is formed on the texture layer or the light shielding layer.

Abstract: A key structure includes a keycap, a membrane circuit board, and a rubber dome between the keycap and the membrane circuit board. The rubber dome includes a ring-shaped structure, a lower foundation structure, a contacting post, a first inclined wall and a second inclined wall. The ring-shaped structure includes a first top surface. The first top surface is upwardly pushed against the keycap. The lower foundation structure includes a first bottom surface. The first bottom surface is pushed downwardly pushed against the membrane circuit board. The contacting post is connected with the ring-shaped structure. The first inclined wall is connected with the ring-shaped structure and the lower foundation structure. The second inclined wall is connected with the ring-shaped structure and the contacting post. There is a first included angle ?1 between the second inclined wall and the first bottom surface. Preferably, 30°??1?85°.

Abstract: A centrifugal switch for a motor of a clothes dryer is provided. The end of a bracket and the end of a fixed contact piece are arranged in alignment and each has a raised contact. An upper limit piece slot is provided above the contact of the bracket inside the housing. The aligned ends of the bracket and the fixed contact piece are located above the aligned ends of a starting spring piece, a starting lower piece and a starting upper piece. A pressing head at one end of the rocking lever is located above one side of the fixed contact piece aligned with the bracket. The other end of the rocking lever extends outside the housing. When the centrifuge is not rotating, a movable sleeve of the centrifuge slides into the rocking lever to trigger the centrifugal switch.

Abstract: A device for controlling and/or supplying information on a recharging operation of an electric motor vehicle or a hybrid motor vehicle includes a casing, a printed circuit board mounted within the casing, and a human-machine interface associated with the casing. The human-machine interface includes a push-button switching device having an on/off button, having a push-button body, carrying at least one electric contact, arranged within the casing, and having a portion mounted to the printed circuit board. The push-button switching device has an arm protruding from the push-button body. The arm abuts against an abutment wall arranged within the casing when the on/off button is pressed.

Abstract: A switch device includes a housing including a recessed portion, a metal member, and a movable contact point member. The recessed portion is recessed in a thickness direction from an opening formed in a first surface. The metal member includes a terminal protruding from the housing, a fixed contact point exposed to an inner side of the recessed portion, and a connection portion connecting the terminal and the fixed contact point. The movable contact point member is provided in the recessed portion and is configured to move to connect to or disconnect from the fixed contact point. A sealing unit is provided in a gap between the connection portion and the housing. The sealing unit is made by solidifying a sealing agent supplied through a hole portion that is in communication with the connection portion from a second surface opposite to the first surface of the housing.