621results about "Contacts enclosures/screens" patented technology

A switch assembly includes a switch casing and a button pivotally connected with the switch casing. The switch casing has at least two sets of fastener slots disposed at two sides of the switch casing, respectively. The cover plate has a set of hooks corresponding to the fastener slots. The hooks are engaged with either set of the fastener slots. In addition, an upper side of the switch casing where the button is pivotally connected includes at least one positioning protrusion that is correspondingly engaged with a positioning groove provided on the cover plate to prevent erroneous assembly of the cover plate with the switch casing.

A method and a door arrangement for a switchgear enclosure, with the enclosure having a top and bottom panel, a back panel and two opposing side panels. The enclosure includes an interior framework supporting a draw-out circuit breaker. The door arrangement comprises a front extension coupled to the enclosure. An exterior door is pivotably mounted in an offset position to the front extension and configured to move from one of a closed position and an open position on one side of the enclosure. The breaker door is pivotably mounted to the interior framework and configured to move from one of a closed position and an open position on another side of the enclosure and move clear of the offset exterior door.

The present invention includes a modular electrical device for use in an electric circuit. The modular electrical device includes a wall plate defining a first opening, and a housing configured to be disposed within the first opening. The housing is configured to accommodate a frame member selected from the plurality of frame members. Each frame member is configured to accommodate at least one wiring assembly. The modular electrical device further includes an electrical wiring assembly chosen from a plurality of electrical wiring assemblies. Each of the plurality of electrical wiring assemblies has a different functional configuration, and each of the plurality of electrical wiring devices being sized to fit in the selected frame member. The modular electrical device further includes a set of terminal contacts selected from a plurality of sets of terminal contacts. Each set of terminal contacts is matched to accommodate one of the plurality of electrical wiring assemblies.

The present invention includes a modular electrical device for use in an electric circuit. The modular electrical device includes a wall plate defining a first opening, and a housing configured to be disposed within the first opening. The housing is configured to accommodate a frame member selected from a plurality of frame members. Each frame member is configured to accommodate at least one wiring assembly. The modular electrical device further includes an electrical wiring assembly chosen from a plurality of electrical wiring assemblies. Each of the plurality of electrical wiring assemblies has a different functional configuration, and each of the plurality of electrical wiring devices being sized to fit in the selected frame member. The modular electrical device further includes a set of terminal contacts selected from a plurality of sets of terminal contacts. Each set of terminal contacts is matched to accommodate one of the plurality of electrical wiring assemblies.

A single-pole relay switch capable of effective arc extinction irrespective of the current flowing directions in which the device is connected in a circuit. The switch has a housing and two sets of contacts located in the housing, each set being composed of a fixed contact and a movable contact. A contact carrier is provided to have first and second movable arms which extend commonly from a bridge and are provided respectively with the two movable contacts. An actuator applies a driving force to move the contact carrier between an ON-position of holding the movable contacts simultaneously in contact respectively with the fixed contacts, and an OFF-position of keeping the movable contacts at respective opening gaps from the fixed contacts. The housing includes a casing which is divided into first and second chambers respectively for receiving the contact sets, each of the first and second chambers being surrounded by a dielectric wall. Permanent magnet are disposed around the casing to stretch the individual arcs in opposing directions to each other and towards the dielectric walls of the first and second chambers, respectively. Thus, the individual arcs can be stretched individually within the separate chambers, i.e., in an isolated condition. Therefore, the individual arcs can be free from merging even when the current flows in such a direction as to drive the arcs in the approaching direction.

An electromechanical relay includes an armature and an inner core at least partially surrounding at least a portion of the armature. The armature is slidably movable relative to the inner core. A coil at least partially surrounding at least a portion of the inner core. The relay also includes a stationary contact held in a ceramic header and a movable contact connected to the armature via a shaft. The movable contact is movable between an open position wherein the movable contact does not engage the stationary contact and a closed position wherein the movable contact engages the stationary contact. The relay also includes a housing having an open end and a chamber. The chamber contains the armature, the inner core, the coil, the movable contact, and at least a portion of the stationary contact. The housing forms a portion of a magnetic circuit of the relay. The ceramic header is circumferentially welded to the housing adjacent the open end such that the chamber of the housing is hermetically sealed.

A low cost, sealed contactor comprises a hermetically sealed housing with a flat header having internal components for changing the state of said contactor. Terminals are electrically connected to the internal components for connection to internal circuitry and applying an electrical signal to control the state of the contactor. A solenoid-driven plunger with a hollow shaft is included. Power-reducing electronics located within the hermetically sealed housing are also included. Two contact springs are also included to improve electrical performance. O-rings are added to help seal the contactor and keep it hermetically sealed.

A magnetically activated switch includes a flexible metallic strip on the inside of a sealed encasement, having first and second ends. The first end provides for an electrical contact and extends through the wall of the sealed encasement, with the strip being firmly secured by the wall of the encasement at the exit point, leaving the second end unsupported and having a magnetic responsive element attached. A first dipole magnet is coupled to the flexible metallic strip and located within the sealed encasement, intermediate the first and second ends. Second and third dipole magnets are diametrically opposed and separate to each other where each of the second and third dipole magnets are fixedly coupled to the inside surface of the sealed encasement. Two electrical terminals coupled respectively to the second and third dipole magnets extending through the sealed encasement. A magnetic activation device in sliding engagement with the outside surface of the sealed encasement effects the movement of the magnetic contact by sliding to first and second positions corresponding to alignment of the second and third dipole magnets creating an electrical circuit flowing from the flexible metallic strip to one of said two electrical terminals.

An information apparatus includes a first cover member that includes an input device capable of inputting data and may be capable of opening and closing with respect to a second cover member, and an opening/closing detection device that detects a status of the first cover member whether the first cover member is opened or closed with respect to the second cover member. The input device includes a plurality of keyswitches, each of which includes a switching portion having a circuit board, which may be provided with a fixed contact, and a rubber spring, which has a traveling contact capable of contacting and separating from the fixed contact and which is capable of being elastically deformed by pressure, and the opening/closing detection device includes at least one of the plurality of keyswitches.

A sealed cased magnetic switch includes: a first contact pressure spring having one end supported by the movable contactor and applying an elastic force to the movable contactor to provide a contact pressure in a direction in which the movable contactor is brought into contact with the fixed electrode; a spring seat member supporting the other end of the first contact pressure spring and fixedly installed on the driving shaft; and a second contact pressure spring having a diameter larger than that of the first contact pressure spring and applying an elastic force at an outer position in a radial direction compared with the first contact pressure spring to the movable contactor in a direction in which the movable contactor is brought into contact with the fixed electrode.

A sealed contact device includes an electromagnet block 2 including a coil bobbin 21, a movable iron core 25, a yoke 26, and a return spring 27; a contact block 3 including a sealing container 31, fixed contact points 32, a movable contact member 35 arranged within the sealing container 31 and composed of a rectangular body portion 35a, first and second protrusions 35b, 35c formed in longitudinal sides of the body portion 35a and movable contact points 34, and a shaft 37; and a case 4. The first and second protrusions 35b, 35c of the movable contact member 35 are formed in non-point symmetry with respect to a connection portion of the movable contact member 35 and the shaft 37 so that, when the movable contact member 35 is rotated, only one of the first and second protrusions 35b, 35c makes contact with the sealing container 31.

A contact device (1) includes a base (41), a movable contact member (29) stored inside the base (41), and one or more rotation stoppers (50) formed separately from the movable contact member (29) and provided between the movable contact member (29) and the base (41) so as to regulate a rotation of the movable contact member (29). At least one rotation stopper (50) regulates a movement in one rotating direction of the movable contact member (29).