摘要:
Embodiments relate generally to methods and systems for providing a bias mechanism for a momentary toggle switch. A toggle switch may comprise a housing; a plurality of contacts disposed within the housing; an actuating lever coupled to a pivot pin, wherein the actuating lever extends into the housing; an actuator assembly coupled to the actuating lever, configured to actuate a movable contact of the plurality of contacts between a first position and a second position; and a biasing mechanism configured to bias the actuator assembly into the first position, wherein the biasing mechanism comprises a torque spring.
摘要:
A return mechanism is achieved which requires only a small force for operation. In one aspect of the present invention, a return mechanism (10) includes: a first spring (1) that acts between an operating section (11) and a working section (12); and a second spring (2) that acts between the operating section (11) and a base (13). A direction in which the second spring acts when the operating section (11) is in a first position is not parallel to a direction in which the second spring (2) acts when the operating section (11) is in a second position. A component which, of a force of the second spring, acts in a direction of motion of the operating section (11) is smaller when the operating section (11) is in the second position than in the first position.
摘要:
A return mechanism is achieved which requires only a small force for operation. In one aspect of the present invention, a return mechanism (10) includes: a first spring (1) that acts between an operating section (11) and a working section (12); and a second spring (2) that acts between the operating section (11) and a base (13). A direction in which the second spring acts when the operating section (11) is in a first position is not parallel to a direction in which the second spring (2) acts when the operating section (11) is in a second position. A component which, of a force of the second spring, acts in a direction of motion of the operating section (11) is smaller when the operating section (11) is in the second position than in the first position.
摘要:
In a switch device, a support arm is retained by a conductor plate at one of its ends and by a center terminal at its other end. The spring member, which made of an elastic round wire, is placed in a bent form between the conductor plate and the center terminal so as to movably support the conductor plate on the center terminal. The support arm and the spring member are retained by the conductor plate and the center terminal on arc-shaped surfaces.
摘要:
The disclosure relates to an actuator for low-, medium- or high-voltage switchgears with a drive to move at least one movable contact, with mechanical actuation energy transmission elements between the drive and the movable contact system, in which rotating and/or translating elements mechanically correspond to at least one position determining switch. To compensate mechanically for torsion and/or bending effects, the rotating and/or the translating element is divided mechanically into a first part and a second part, movable relative to each other, a tappet element being between the parts. A relative mechanical deviation of the first part to the second part can be dimensioned such that it can compensate for the mechanical deviation caused by torsion and/or bending and/or tolerance of transmission elements.
摘要:
A switch has a base, a housing, a support terminal that is assembled in the base, a moving contact piece that is made of a band-shaped material having a section being formed into a substantial J-shape, a moving contact being provided in one end portion of the moving contact piece, an intermediate portion of the moving contact piece being turnably supported by a turning bracket of the support terminal, a plunger that is accommodated in an internal space while being vertically movable, wherein the internal space is formed by fitting the housing in the base, and a coil spring that is turnably supported by the plunger. The plunger is vertically moved such that one end portion of the coil spring is slid while brought into press-contact with an edge of the other end portion of the moving contact piece, whereby the moving contact piece is inverted to bring and separate the moving contact into contact with and from a fixed contact. The pair of moving contact pieces is disposed on the base such that axis centers of the moving contact pieces are parallel to an axis center in a longitudinal direction of the base and such that the moving contact pieces are located on both sides in a central portion in the longitudinal direction of the base.
摘要:
A heart cam mechanism of a switch includes a cam groove, which includes a heart cam and surrounding cams, and a lock pin. The heart cam has a concave part, a first vertex opposite the concave part, and second and third vertices on a concave-part side. While the switch is in a locked state, an upper end part of the lock pin is engaged with the concave part of the heart cam, and is positioned at a locking position. While the switch is pressed, the upper end part slides while pushing against a bottom surface of the cam groove located outside the heart cam, and moves along a heart-shaped path, which is depressed at the locking position. This configuration prevents an end part of the lock pin from moving in a reverse direction even when a step-like part of the bottom surface of the cam groove is worn out.
摘要:
A switch has a supporting terminal assembled to a base, a movable contact piece, made of a band-shaped conductive material bent to a substantially J-shaped cross section, having a movable contact at one end and having an intermediate portion rotatably supported by a rotation receiving portion of the supporting terminal, a plunger accommodated so as to be movable up and down in an internal space formed by fitting a housing to the base, and a coil spring including a forced dissociation bent portion at one end and being rotatably supported by the plunger. The plunger is moved up and down to slidably move one end of the coil spring while pressure contacting the other end edge of the movable contact piece to invert the movable contact piece and contact or separate the movable contact to and from a fixed contact, and to lock a distal end of the forced dissociation bent portion to the other end edge of the movable contact piece and exert a shear force on the movable contact of the movable contact piece.
摘要:
This invention deals with a new chamber meant to be used in insulating operation shafts or rods, with a view to disconnect electric switches, connect them again, or, besides, to act as contactors, so as to extinguish the electric are formed during the operation, specially in medium and high voltage overhead lines. In its general lines, the innovation consists in a chamber for breaking and/or re-connecting of section switches quencher of electric arc formed by an insulated body in the interior of which there is arranged an actuating movable contact in one or two fixed contacts, this movable contact being driven by a shaft provided in the chamber and tripped by a spring assembly provided in an appropriate mechanism, said chamber being closed and sealed, containing in its interior sulfur hexafluoride gas (SF6) under pressure.