56results about "Emergency springs" patented technology

A switch device includes a circuit board, a coil structure, a lower cover, an upper cover, an elastic part, and a sliding part. The circuit board gas a through hole running through the circuit board. The coil structure is disposed on the circuit board and surrounds the through hole. The lower cover us located over the coil structure. The upper cover is disposed on the lower cover. The lower cover and the upper cover form an accommodating space. The elastic part is located in the accommodating space. The sliding part passes through an opening of the upper cover and is configured to slide relative to the lower cover along a direction. The sliding body is configured to drive the sliding part to pass through the through hole along the direction to generate a switch signal corresponding to an inductance variance of the coil structure.

The invention relates to an electrical switch (1), in particular a medium voltage switch, comprising: an insulating housing (2); a mechanically actuatable switching device (3), which is arranged in the housing (2); a switching lever (4) extending at least partially through a cavity (5) inside the housing (2) to actuate the switching device (3); a driver (6) for actuating the switch lever (4); and a spring system (10). In this case, the spring system (10) comprises a first spring (11) and a second spring (12) which are nested with one another, said first spring (11) and second spring (12) exerting forces on the drive (6) in opposite directions.

A contactor device is provided that includes a movable contact configured to selectively open / close an electrical circuit. The movable contact is coupled to the shaft, and the shaft is retained in the closed position by the latch. The movable member is biased away from the latch. During an event, a biasing force that biases the movable member away from the latch is overcome. The movable member disengages the latch from the shaft, allowing the shaft to move to the open position. In an example, a movable member is disposed over an opening of a housing of the contactor device.

A fusible disconnect switch devices includes dual sets of switch contacts to connect or disconnect a current path through an overcurrent protection fuse with reduced arcing severity. Faster acting and longer contact path switch mechanisms are described providing satisfactory switching of DC circuits without excessive electrical arcing in a reduced physical package size.

A fusible disconnect switch devices includes dual sets of switch contacts to connect or disconnect a current path through an overcurrent protection fuse with reduced arcing severity. Faster acting and longer contact path switch mechanisms are described providing satisfactory switching of DC circuits without excessive electrical arcing in a reduced physical package size.

A fusible disconnect switch devices includes dual sets of switch contacts to connect or disconnect a current path through an overcurrent protection fuse with reduced arcing severity. Faster acting and longer contact path switch mechanisms are described providing satisfactory switching of DC circuits without excessive electrical arcing in a reduced physical package size.

A contactor device includes a movable contact configured to selectively open / close an electrical circuit. The movable contact is coupled to a shaft, and the shaft is retained by a latch in the closed position. A movable member is biased away from the latch. During an event, the biasing force biasing the movable member away from the latch is overcome. The movable member causes the latch to disengage the shaft, allowing the shaft to move to an open position. In examples, the movable member is disposed over an opening in a housing of the contactor device.

To provide electronic devices and electronic clocks with operating mechanisms that are more shock-resistant and space-saving. [Solution] The electronic clock comprises a leaf spring (11) and a substrate. The leaf spring (11) has a fixed first end (E1) and extends in the X direction from the first end (E1). The substrate has electrodes. The substrate contacts the second end (E2) of the leaf spring (11), which is opposite to the first end (E1), when the first position (P) of the leaf spring (11) is pressed by the pressing action of a push button switch, and does not contact the second end (E2) when the first position (P) is not pressed. The leaf spring (11) has a first bend (B1) between the first position (P) and the second end (E2). The components of the direction from the first bend (B1) to the second end (E2) and the direction from the first position (P) to the first bend (B1) are opposite along the x direction.

A contactor device includes a movable contact configured to selectively open / close an electrical circuit. The movable contact is coupled to a shaft, and the shaft is retained by a latch in the closed position. A movable member is biased away from the latch. During an event, the biasing force biasing the movable member away from the latch is overcome. The movable member causes the latch to disengage the shaft, allowing the shaft to move to an open position. In examples, the movable member is disposed over an opening in a housing of the contactor device.

A key structure may include a lower shell inserted into an insertion opening, where an annular stopper protrudes from the lower shell, which may include transparent grooves arranged on opposite inner sides of the annular stopper, the annular stopper may be formed with elastic arms on outer sides of the grooves, clamping hooks engaged with the top plate extend downwardly from the elastic arms, the annular stopper, and the annular stopper and a top plate stop and locate each other. The key structure may include an upper shell above the lower shell, that may include a through opening. The key structure may include a pressing shaft movably disposed between the lower shell and the upper shell, where a top end of the pressing shaft penetrates the through insertion opening. Moreover, the key structure may include a spring disposed and elastically supported between the lower shell and the pressing shaft.

A contact system and electromagnetic contactor are provided in which the contact system includes a movable contact that moves along a closing direction and a pair of stationary contacts that are disposed facing each other along a longitudinal direction transverse to the closing direction. Each stationary contact has a C-shaped body with first and second legs that are oriented toward a center of the contact system and are spaced apart along the closing direction. The movable contact has a first movable contact portion disposed between the first and second legs of the first stationary contact and a second movable contact portion disposed between the first and second legs of the second stationary contact. The first and second stationary contacts each include a terminal portion that extends from the respective second leg in a direction that forms a non-zero angle with the longitudinal direction.

A key switch assembly includes a sliding member that is slidable by pressing of an operation member, a support member having a guide that guides the sliding member, a first elastic member provided between the sliding member and the support member, the first elastic member generating a repulsive force against a force pressing the operation member, a second elastic member that is attached to the sliding member, and an electrical contact disposed so as to have an air gap between the electrical contact and the second elastic member in a state before the operation member is pressed, the electrical contact being opened and closed by the second elastic member in accordance with sliding of the sliding member, wherein a spring constant of the second elastic member is larger than a spring constant of the first elastic member.

A module (1) includes a plate spring (11) and a substrate (20). The plate spring (11) includes a fixed first end (E1) and extends from the first end (E1) in a first direction (X). The substrate (20) includes an electrode (21) that contacts a second end (E2) of the plate spring (11) opposite the first end (E1) in response to a first point (P) of the plate spring (11) being pressed by a pushbutton switch (Sw) being pressed and does not contact the second end (E2) in response to the first point (P) being not pressed. The plate spring (11) further includes a first bend (B1) between the first point (P) and the second end (E2). A direction from the first bend (B1) to the second end (E2) and a direction from the first point (P) to the first bend (B1) are opposite in a component along the first direction (X).

Push buttons utilizing dome switches are often preloaded to take up any tolerances in the push button design causing a gap and provide consistent tactile feedback to a user. However, conventional push button preload techniques can be costly and difficult to consistently reproduce during push button manufacturing. The presently disclosed technology employs a new pre-load design without requiring pre-depression of the dome switch to close the gap, which permits a more forgiving tolerance to manufacturing variations.

An actuation device (100), in particular for a relay (200), is shown comprising a base element (10) and a drive rod (20) that is movable relative to the base element (10), where the actuation device (100) comprises an actuation element (30) for moving the drive rod (20) from a first position (21) to a second position (22), where the actuation element (30) comprises a film (40) made of an electroactive polymer (49).

An electronic device, including a frame body and a button assembly, where the frame body includes a first side surface and a second side surface, the second side surface is exposed to an outer surface of the electronic device, a mounting groove is provided in the frame body, a first opening is provided on the first side surface, a second opening is provided on the second side surface, and both the first opening and the second opening are in communication with the mounting groove; the button assembly includes a button cap and an elastic member, the button cap is disposed in the second opening, the elastic member is disposed in the mounting groove, a slide cover is disposed in the first opening, and the slide cover is detachably connected to the frame body.

An air circuit breaker according to an embodiment of the present disclosure comprises: a body portion provided with an opening having one open side; a plurality of movers which are rotatably coupled to the body portion and inserted in the opening; and a plurality of contact springs which are accommodated in the body portion and provide the plurality of movers respectively with an elastic force, wherein the plurality of contact springs comprise a plurality of first contact springs, and a plurality of second contact springs arranged among the plurality of first contact springs. The plurality of first contact springs may provide the plurality of movers with greater elastic force as compared with the plurality of second contact springs.

A current switch (10) is proposed, arranged between a first portion (12) of an electrical line and a second portion (14) of an electrical line, comprising: a first switch element (16), comprising a main contact (20) and a secondary contact (22) integral with the main contact (20), movablely mounted on the first portion (12) of the electrical line to follow a separation stroke between a closed position and an open position, and a second switch element (18) freely movablely mounted on the second portion (14) of the electrical line and forced towards a rest position by an elastic force (24).

The invention relates to an electrical contactor (10) comprising fixed contacts (12) and movable contacts (14) which are movable relative to the fixed contacts (12) between a position of contact with the fixed contacts and a position remote from the fixed contacts (12), an actuator (16) for driving the movable contacts (14) in movement relative to the fixed contacts (12) towards one or other of the position of contact with the fixed contacts (12) and the position remote from the fixed contacts (12), a linkage (30) for driving the movable contacts (14) in movement from the contact position towards the remote position independently of the actuator (16), characterized in that the linkage (30) comprises a drive spring (32) and a system for locking the linkage which is disengageable. Figure for the abstract: figure 3.

A wireless switch includes a switch body, a push button connected to the switch body in a state of being movable along an approaching / separating direction between a non-operating position and an operating position, a signal output device accommodated in the switch body and configured to output a switch signal in response to a movement of the push button from the non-operating position to the operating position, and a restriction member that restricts the movement of the push button from the non-operating position to the operating position when the push button is located at the non-operating position.

A contact system and an electromagnetic contactor include a movable contact that moves along a closing direction and a pair of stationary contacts disposed facing each other along a longitudinal direction transverse to the closing direction. Each of the stationary contacts has a C-shaped body with a first leg and a second leg oriented towards a center of the contact system and spaced apart along the closing direction. The movable contact has a first movable contact section disposed between the first and the second legs of the first stationary contact and a second movable contact section disposed between the first and the second legs of the second stationary contact. The first and the second stationary contacts each include a terminal section extending from the respective second leg towards a direction that forms a non-zero angle with the longitudinal direction.

This fuse unit (1) comprises: a bus bar (3) that acts as a conductor and in which a section to be cut (3b) is set; a case body (2) that supports two points sandwiching the section to be cut; a cutting section (4) that is disposed in a first space (6) that is an internal space of the case body and is formed on one side with respect to the bus bar, the cutting section acting as an insulator; and a reconnection section (5) that is disposed in a second space (7) that is an internal space of the case body and is formed on the side of the bus bar opposite to the first space, the reconnection section acting as a conductor, wherein the cutting section has a tip section (4c) that cuts the bus bar into a first portion (14) and a second portion (15) at the section to be cut and is able to move into the second space, and the reconnection section has a first connection section (5b) that comes into contact with the first portion and a second connection section (5c) that comes into contact with the second portion.

An electrical switch includes a neutral contact adjustment system (610) adapted to adjust a position of a neutral contact disconnect surface (631) relative to at least one phase contact disconnect surface (632) such that the neutral contact adjustment system (610) has a first operating state and a second operating state, wherein the first operating state is adapted to provide a synchronous disconnection operation in which a movable neutral contact (131) is disconnected synchronously with at least one movable phase contact (132) during a disconnection event, and the second operating state is adapted to provide a delayed disconnection operation in which the movable neutral contact (131) is disconnected later than at least one movable phase contact (132) during a disconnection event.

Switch mechanism The device (401) for providing a switch mechanism includes a housing (402) and a pressure-sensitive device (403) attached to the housing. An actuator (405) is movably connected to the housing such that the actuator can move toward and away from the pressure-sensitive device along an axis (406). The resilient member (406) has a first end (407) connected to the actuator and a second end (408) connected to the pressure-sensitive device.

ProblemTo maintain a low internal resistance value and adjust spring characteristics by using a movable contact made of a multilayered material.Means for Solving ProblemA thermosensitive pellet-type thermal fuse includes, in an interior of a cylindrical case having electrical conductivity, a thermosensitive pellet that melts or softens at a temperature, a strong compression spring configured to press the thermosensitive pellet, an insulating cover closing the cylindrical case, a weak compression spring abutting against the insulating cover, a first lead extending through the insulating cover and including an inner end as a fixed contact, a movable contact electrically connecting to the first lead and the cylindrical case, a sealing resin provided surrounding a portion of the first lead and covering an outer end portion of the insulating cover, and sealing an open end portion of the cylindrical case, and a second lead disposed at one end of the cylindrical case. The movable contact includes a conductive base material and a conductive member covering a predetermined surface of the conductive base material. The conductive member is provided to contact portions with the fixed contact and an inner wall surface of the cylindrical case, and is made of a material having a Young's modulus and a rigidity different from those of the conductive base material.

The embodiment of the utility model discloses a key structure, a shell and electronic equipment, the key structure is installed on the shell, the shell is provided with a key hole, the key structure comprises a key cap, a soft rubber part, a circuit board and a pressing part, the key cap is provided with a display pattern, and at least part of the key cap is exposed through the key hole; the soft rubber piece comprises a deformation part and a connecting part, the connecting part surrounds the periphery of the deformation part, the deformation part is connected with the inner surface of the key cap, and the connecting part is connected with the inner wall of the shell; the circuit board is provided with a light-emitting part and a key, the key cap corresponds to the key, and light emitted by the light-emitting part is emitted through the display pattern; and the pressing piece is connected with the circuit board. By arranging the display pattern on the key cap, compared with split arrangement of the key structure and a component with a display function, the key structure is compact in design, the space occupied by the key structure in the shell can be reduced, the size of the shell is reduced, and then the size of the electronic equipment is smaller.

A key switch assembly includes: a sliding member slidable by pressing an operating member; a support member having a guide portion for guiding the sliding member; a first elastic member provided between the sliding member and the support member, the first elastic member being capable of generating a repulsive force against a force pressing the operation member; a second elastic member attached to the sliding member; an air gap is formed between the electric contact and the second elastic component before the operating component is pressed, and the electric contact can be switched on and off along with the sliding of the sliding component through the second elastic component; the spring constant of the second elastic component is larger than that of the first elastic component.

A module includes a plate spring and a substrate. The plate spring includes a fixed first end and extends from the first end in a first direction. The substrate includes an electrode that contacts a second end of the plate spring opposite the first end in response to a first point of the plate spring being pressed by a pushbutton switch being pressed and does not contact the second end in response to the first point being not pressed. The plate spring further includes a first bend between the first point and the second end. A direction from the first bend to the second end and a direction from the first point to the first bend are opposite in a component along the first direction.

A surge protective device (SPD) module (100) comprising: a varistor (133) including a hole (139) defined therein and extending through the varistor; and an electrode (136) including: a contact portion (136A, 136B) electrically connected to a contact surface (133B) of the varistor; and an integral extension portion extending through the hole and including a terminal tab (137); a module housing (110); first and second module electrical terminals (166, 168) mounted on the module housing, wherein the varistor is electrically connected between the first and second module electrical terminals; and a thermal disconnector mechanism (151) positioned in a ready configuration, wherein the varistor is electrically connected with the second module electrical terminal, the thermal disconnector mechanism being repositionable to electrically disconnect the varistor from the second module electrical terminal, the thermal disconnector mechanism including: a disconnect spring (150) elastically deflected and electrically connected to the terminal tab (137) of the electrode in the ready configuration; and a solder (159) securing the disconnect spring in electrical connection with the terminal tab (137) of the electrode in the ready configuration, wherein: the solder is meltable in response to overheating in the SPD module; and the disconnect spring is configured to electrically disconnect the varistor from the second module electrical terminal when the solder is melted; wherein the terminal tab (137) projects outwardly beyond a second surface (133A) of the varistor opposite the contact surface (133B).

A surge protective device (SPD) module includes a varistor and an electrical conductor. The varistor includes a hole defined therein and extending through the varistor. The electrical conductor extends through the hole in the varistor.