Abstract: A switch operable under a predetermined condition includes a plurality of switch parts each including a pair of reed pieces and a connecting member of an electrically conductive non-magnetic material via which the plurality of switch parts are serially connected. The switch operates only under a condition where all of the plurality of switch parts are operated by external magnetic fields individually and simultaneously acting on the plurality of switch parts.

Abstract: An electromagnetic relay including a base, an electromagnet incorporated to the base, an armature movably arranged relative to the electromagnet, and a contact section incorporated to the base to be actuated by the armature. The electromagnet includes a bobbin, a coil having a center axis and carried on the bobbin, and a pair of coil terminals mounted to the bobbin. Each of the coil terminals is provided with a first end region and a second end region, extending in respective directions transverse to each other. The coil terminals are disposed in such a manner that respective first end regions extend in a direction transverse to the center axis of the coil to project outward from the bobbin and are arranged side-by-side in a row extending substantially parallel to the center axis, and that respective second end regions extend in a direction parallel to the center axis of the coil to project outward from the bobbin and are arranged side-by-side in a row extending substantially transverse to the center axis.

Abstract: A balanced-armature type polar relay (10) capable of assuring, by its own structure, sufficient insulation distances, meeting the requirements of IEC60950, when mounted on an electric communication line connecting equipment, wherein a maximum distance between one movable contact and one fixed contact capable of being brought into contact with each other during the travel of an armature is set at 1 mm or more, and at least one of the abutting surfaces of the armature and the core polar surfaces of the electromagnet opposed to the abutting surfaces is formed as an inclined surface to reduce an angle of opposed surfaces at the time of mutual abutment to as little as possible, whereby the armature passes, during the travel thereof, a position where each of the pair of abutting surfaces faces the pair of corresponding core polar surfaces in parallel with each other.

Abstract: An electromagnetic relay including a base including a receptacle, an electromagnet assembly incorporated in the base, and a contact section incorporated in the base to be actuated by the electromagnet assembly. The contact section includes a fixed contact member located away from the electromagnet assembly at at least a predetermined insulating distance, and a movable contact member located opposite to the fixed contact member at a position further away from the electromagnet assembly than the fixed contact member. The fixed contact member is provided with a fixed contact portion, a first terminal portion, a fitting portion arranged between the fixed contact portion and the first terminal portion, the fitting portion being fitted and inserted in a lateral direction into the receptacle of the base, and an extending portion arranged between the fitting portion and the first terminal portion, the extending portion extending to be exposed outside from the receptacle.

Abstract: An electromagnetic relay including a base including a receptacle, an electromagnet assembly incorporated in the base, and a contact section incorporated in the base to be actuated by the electromagnet assembly. The contact section includes a fixed contact member located away from the electromagnet assembly at at least a predetermined insulating distance, and a movable contact member located opposite to the fixed contact member at a position further away from the electromagnet assembly than the fixed contact member. The fixed contact member is provided with a fixed contact portion, a first terminal portion, a fitting portion arranged between the fixed contact portion and the first terminal portion, the fitting portion being fitted and inserted in a lateral direction into the receptacle of the base, and an extending portion arranged between the fitting portion and the first terminal portion, the extending portion extending to be exposed outside from the receptacle.

Abstract: A switch operable under a predetermined condition includes a plurality of switch parts each including a pair of reed pieces and a connecting member of an electrically conductive non-magnetic material via which the plurality of switch parts are serially connected. The switch operates only under a condition where all of the plurality of switch parts are operated by external magnetic fields individually and simultaneously acting on the plurality of switch parts.

Abstract: An electromagnetic relay including a base, an electromagnet incorporated to the base, an armature movably arranged relative to the electromagnet, and a contact section incorporated to the base to be actuated by the armature. The electromagnet includes a bobbin, a coil having a center axis and carried on the bobbin, and a pair of coil terminals mounted to the bobbin. Each of the coil terminals is provided with a first end region and a second end region, extending in respective directions transverse to each other. The coil terminals are disposed in such a manner that respective first end regions extend in a direction transverse to the center axis of the coil to project outward from the bobbin and are arranged side-by-side in a row extending substantially parallel to the center axis, and that respective second end regions extend in a direction parallel to the center axis of the coil to project outward from the bobbin and are arranged side-by-side in a row extending substantially transverse to the center axis.

Abstract: An electromagnetic relay has an iron core, an armature, a coil wound around the iron core, a yoke, a hinge spring, and a joining structure. The yoke is fastened rigidly to the iron core and has an engaging hole and a fitting portion. The hinge spring is used to support the armature rotatably on the yoke, and the joining structure is used to join the hinge spring to the yoke in the electromagnetic relay. The hinge spring has a tongue and a dish-shaped portion, and the yoke has an engaging hole and a fitting portion for engaging with the tongue and the dish-shaped portion. The hinge spring is joined to the yoke by inserting and fitting the hinge spring into the yoke. This structure serves to simplify the process of assembling the hinge spring to the yoke and drastically reduce the number of assembling steps required.

Abstract: An electromagnetic relay has an iron core, an armature, a coil wound around the iron core, a yoke, a hinge spring, and a joining structure. The yoke is fastened rigidly to the iron core and has an engaging hole and a fitting portion. The hinge spring is used to support the armature rotatably on the yoke, and the joining structure is used to join the hinge spring to the yoke in the electromagnetic relay. The hinge spring has a tongue and a dish-shaped portion, and the yoke has an engaging hole and a fitting portion for engaging with the tongue and the dish-shaped portion. The hinge spring is joined to the yoke by inserting and fitting the hinge spring into the yoke. This structure serves to simplify the process of assembling the hinge spring to the yoke and drastically reduce the number of assembling steps required.

Abstract: A contact spring assembly for an electromagnetic relay has an armature, a plurality of movable contact springs, and a plurality of transfer contact spring sets and a plurality of make contact spring sets. The armature is centrally placed in the contact spring assembly. Each of the movable contact springs is formed integrally with a corresponding hinge spring, and the movable contact springs are disposed on both sides of the armature in such a manner as to extend in parallel along a longitudinal direction of the armature. The transfer contact spring sets and make contact spring sets are constructed from the movable contact springs. This construction allows the contact spring assembly to be assembled on an electromagnetic relay simply and with high accuracy, and permits reductions in the size and power consumption of the electromagnetic relay.

Abstract: A polarized electromagnetic relay has two electromagnetic relay portions each constituted by a first yoke, second yoke, coil, movable core, card, and the like. The first yoke and the second yoke are used to flow a magnetic flux caused by a permanent magnet in the movable core in the same direction as a magnetic flux caused by the magnetization of the coil, and thus electrical power flowing in the magnetized coil can be small, or an area occupied by the coil can be small. Therefore, a small size and economical polarized electromagnetic relay having two groups of electromagnetic relays can be provided, and a stable operation regardless the states of magnetization or non-magnetization of one or both coils of the two electromagnetic relay portions can be realized.

Abstract: In an electromagnetic relay wherein a movable contact spring (9) and a stationary contact spring (10) are inserted by molding into a base block (8), the width of a portion of the movable contact spring and the stationary contact spring within the base block is made larger than that of a portion thereof outside of the base block.

Abstract: In an electromagnetic relay, a position of an electromagnet assembly (X) having a core (4), a bobbin (1), a yoke (5), a hinge spring (6), and an armature (7) relative to a base block assembly (Y) having a base block (8) and a contact spring assembly (9, 10, 11) is adjusted and fixed.

Abstract: A relay includes a base block (A'), an armature block (B') having a pair of armatures (8a, 8b) and a permanent magnet (17a, 17b), and an electromagnet block (C') having an approximately U-shaped core (10). Magnetic pole legs (18a, 18b) of the electromagnet block are inserted through the armatures into the base block, to thereby sandwich the armature block between the base block and the electromagnet block.

Abstract: A relay comprises a yoke, an armature, a movable contact spring having a movable contact, at least one stationary contact mounted thereon, and a core. An air damper is mounted on a free end of the movable spring, or on a free end of the armature, to reduce sound generated by the impulsive force of the movable contact and the impulsive force of the armature.

Abstract: A relay comprises a base block having a supporting stud at the center thereof, an H-shaped armature block having a pair of armatures and a coupling member providing a hole at the center thereof, and a U-shaped core having two magnetic pole legs. The H-shaped armature block is rotatably mounted on the base block by inserting the supporting stud thereof into the hole of the armature block. The U-shaped core is mounted on the base block by fixing the legs thereto so that the magnetic pole faces of the legs oppose the armatures.

Abstract: In a hybrid relay circuit for supplying current to a load with a AC power supply, an electromagnetic relay is provided and the contact thereof is connected in series to the load and the AC power. The electromagnetic relay is driven by a driving circuit in accordance with an input control signal, thereby switching the supply of current to the load.

Abstract: An electromagnetic relay constructed by assembling an electromagnet portion including an armature of a straight bar shape arranged adjacent to a magnetic pole piece; a fixed contact spring; and a spring holding portion including a movable contact spring driven by a card driven by the armature, so that the precise portional relationship between elements of the electromagnetic relay is realized.

Abstract: An electromagnetic relay comprising a bobbin on which a winding is wound, a base block on which an armature and contact elements are mounted, an approximately U-shaped magnetic pole piece, and an approximately U-shaped magnetic yoke piece. The long tongues of the magnetic pole piece and the magnetic yoke piece are inserted into the bobbin, while the short tongues of the magnetic pole piece and the magnetic yoke piece are inserted with a gap into the base block.

Abstract: In an electromagnetic relay, one of the spring members of the electromagnetic relay is fixed to a cubic corner protrusion of a base block of a housing. Side projections provided in the spring member are fitted into deep holes which adjoin a slot in the cubic corner protrusion so that the spring member becomes firmly fixed to the base block.