Abstract:
An electromechanical relay is provided with a housing, a relay assembly within the housing, and a data collection cover enclosing the relay assembly within the housing. The data collection cover includes sensing members that extend in toward the relay assembly and engage disconnect switches of the relay assembly. The sensing members transmit analog signals to an analog-to-digital converter that converts analog signals to digital signals. The cover then stores, displays and/or communicates the digital information.
Abstract:
The present invention is related to a switching device having a contactor and an actuator. The contactor has at least a first contactor member and a second contactor member. The actuator is configured to actuate the contactor. At least one of the contactor members has a varying or variable thickness along its length such that the at least one of the contactor members has a relatively thick portion and a relatively thin portion.
Abstract:
An ignition apparatus includes a transformer having a central core, a primary winding disposed thereabout, a secondary winding disposed outwardly of the primary winding, and an outer core or shield disposed outwardly of the secondary winding. The central and outer cores and the primary and secondary windings define a magnetic circuit through which magnetic flux flows during various phases of operation. An end-of-spark natural ringing of the secondary voltage is suppressed and limited by a control winding disposed in relation in the magnetic circuit. The control winding has a pair of terminals across which is connected a diode. The diode is oriented so that during a spark event, it is reverse biased but after the spark event it becomes forward-biased when the secondary voltage is positive so as to selectively facilitate dissipation of any residual electrical charge. Ringing is further suppressed by a resistor connected across the primary winding, or selectively connected across the primary winding using a controlled switch.
Abstract:
A reed relay which comprises a reed switch with reeds at both ends; an electrostatic shield pipe inside which the reed switch passes; a coil bobbin having a hollow part in which the electrostatic shield pipe is disposed; removable bushings attached to the electrostatic shield pipe and the coil bobbin and having a reed support hole that supports the reed switch; and the removable bushing is capable of disabling the support of the reed switch by the bushings after anchoring the reed relay and both ends of the reeds.
Abstract:
An electromagnetic relay system is constituted by containing an electromagnetic relay arranged in a case and including a coil, a movable contact and a plurality of fixed contacts, a positive terminal and a negative terminal formed to project from the case, and load terminals formed to project from the case and connectable to a motor. An electric current flowing in the motor is controlled by controlling an electric current flowing in the coil. A ground line extended from the coil is connected to the negative terminal via a coil spring in the case.
Abstract:
An electromagnetic relay including a base having a first receptacle, a second receptacle and a partition wall defining the first and second receptacles on mutually opposite sides of the partition wall. The partition wall includes a major part and an auxiliary part, the major part being provided with a local opening. An electromagnet assembly is received in the first receptacle of the base and includes an electromagnet and an armature. The armature includes an extending portion extending in a direction toward the second receptacle of the base through the local opening of the partition wall. The auxiliary part of the partition wall is disposed between the electromagnet and the extending portion of the armature. A contact section is received in the second receptacle of the base. An actuating member is arranged between the electromagnet assembly and the contact section, and includes an envelope part for enclosing at least a part of the extending portion of the armature. When the contact section is opened, the envelope part of the actuating member is supported by the auxiliary part of the partition wall.
Abstract:
A relay for high frequency instruments and a reverse power protection circuit for high frequency instruments are described herein. The relay is inexpensive to construct, permits good impedance matching up to approximately 5 GHz, and can be easily mounted on a coplanar waveguide transmission line. The circuit can open the relay in response to a reverse power condition in as little as 8 microseconds and provides both good grounding and functions reliably up to 4 GHz.
Abstract:
A coaxial reverse power protection relay using a conductive elastomeric tube and a conductive body. The relay includes a reed switch enclosed within the central channel of the conductive body. The tube concentrically surrounds the reed switch within the channel. The tube retains the reed switch in place and serves as a conformal ground. A magnetic coil is wound around a portion of the body. When energized the coil produces a magnetic field which closes the reed switch. When de-energized, the coil's magnetic field ceases, opening the reed switch. The reed switch, along with center contacts form a center conductor within the channel of the relay body. The body and elastomeric tube form an outer conductor. The relay is impedance matched to RF connector and instrument transmission line impedances. A nonuniform impedance occurring along the length of the reed switch is balanced by the conforming tube walls. The internal wall of the conductive body has a retention thread in the vicinity of the reed switch. Such threading holds the tubing in place during installation.
Abstract:
A relay, including a first fixed contact, a second fixed contact, a movable contact piece having first and second movable contacts, a contact piece holding unit configured to hold the movable contact piece, a magnet for arc extinguishing, and a debris suction unit configured to exert a magnetic force to suck debris, is disclosed. A first contact position between the first fixed contact and the first movable contact is located between the magnet for arc extinguishing and the contact piece holding unit in a longitudinal direction of the movable contact piece. The debris suction unit is disposed so that the first contact position does not overlap a region between the debris suction unit and the contact piece holding unit. A magnet force exerted by the debris suction unit in the contact piece holding unit is larger than a magnetic force exerted by the magnet in the contact piece holding unit.
Abstract:
A contact point device includes a fixed contact, a movable contactor that has a movable contact capable of being in contact with the fixed contact by moving in parallel with a first direction, a containing chamber that contains the fixed contact and the movable contact, and a shielding wall disposed inside the containing chamber. The shielding wall is located in the first direction from the fixed contact and the movable contact when viewed in a second direction orthogonal to the first direction, the shielding wall extends along the first direction, and the shielding wall is provided with one or a plurality of through holes that penetrate the shielding wall.