Abstract:
A complex electromagnetic relay including a plurality of relay structures configured respectively as relays independent of each other, each relay structure including an electromagnet assembly and a contact section acting to open or close in accordance with an operation of the electromagnet assembly; and a housing accommodating the relay structures in a mutually inverted orientation with contact sections of the relay structures being located alternately at opposing sides. The electromagnet assemblies in the relay structures are provided individually with bobbins supporting coils. The housing includes an enclosing wall enclosing the relay structures in an envelope-like manner and a partition wall arranged between the relay structures disposed side-by-side to separate the relay structures from each other. The bobbins of the electromagnet assemblies are fixedly attached to the enclosing wall as well as to the partition wall.
Abstract:
A multiple electromagnetic relay is disclosed which comprises at least three electromagnetic relays including electromagnetic relays of the same type or two electromagnetic relays of different types selected from electromagnetic relays of various types each including a coil and a contact unit of a different type and which is mounted in a single assembly frame adapted to be attached to a board. Those terminals of the electromagnetic relays for connection with the external conductors which are connectable with a common external conductor are coupled to each other by a coupling conductor in the area of the assembly frame, and the common external conductor is connected to one of the terminals thus coupled.
Abstract:
A hull for a small-sized ship has a planing type bottom and a stern having an area curve substantially the same as that of a displacement type hull, whereby during a low speed travelling period the ship is allowed to be travelled under substantially the same characteristics as those of a displacement type hull, while during a high speed travelling period it is allowed to be travelled under substantially the same travelling characteristics as those of a planing type hull.
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 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:
The present invention provides an electromagnetic relay that has a long service life, even when being used for interrupting high voltage, and that can be miniaturized. In this electromagnetic relay, the circuit interruption is cut-off by two or more keying circuits, which are operated by a single coil and connected in series. Thus, an amount of generated arc per keying circuit is suppressed. Consequently, the service life of the electromagnetic relay is lengthened. Moreover, the space between the contracts thereof is reduced, so that the electromagnetic relay is miniaturized. Additionally, a magnetic field for extinguishing arc is formed by a back or counter electromotive force generated when the circuit is cut-off. Thus, the generated arc is extinguished.
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. The movable contact member is provided with a movable contact portion capable of contacting with the fixed contact portion of the fixed contact member, and a second terminal portion spaced from the first terminal portion of the fixed contact member. The extending portion of the fixed contact member is shaped and dimensioned to ensure at least the insulating distance and to maintain a predetermined terminal pitch between the first terminal portion of the fixed contact member and the second terminal portion of the movable contact member.
Abstract:
A complex electromagnetic relay including a plurality of relay structures configured respectively as relays independent of each other, each relay structure including an electromagnet assembly and a contact section acting to open or close in accordance with an operation of the electromagnet assembly; and a housing accommodating the relay structures in a mutually inverted orientation with contact sections of the relay structures being located alternately at opposing sides. The electromagnet assemblies in the relay structures are provided individually with bobbins supporting coils. The housing includes an enclosing wall enclosing the relay structures in an envelope-like manner and a partition wall arranged between the relay structures disposed side-by-side to separate the relay structures from each other. The bobbins of the electromagnet assemblies are fixedly attached to the enclosing wall as well as to the partition wall.
Abstract:
The present invention provides an electromagnetic relay that has a long service life, even when being used for interrupting high voltage, and that can be miniaturized. In this electromagnetic relay, the circuit interruption is cut-off by two or more keying circuits, which are operated by a single coil and connected in series. Thus, an amount of generated arc per keying circuit is suppressed. Consequently, the service life of the electromagnetic relay is lengthened. Moreover, the space between the contracts thereof is reduced, so that the electromagnetic relay is miniaturized. Additionally, a magnetic field for extinguishing arc is formed by a back or counter electromotive force generated when the circuit is cut-off. Thus, the generated arc is extinguished.
Abstract:
The present invention provides an electromagnetic relay that has a long service life, even when being used for interrupting high voltage, and that can be miniaturized. In this electromagnetic relay, the circuit interruption is cut-off by two or more keying circuits, which are operated by a single coil and connected in series. Thus, an amount of generated arc per keying circuit is suppressed. Consequently, the service life of the electromagnetic relay is lengthened. Moreover, the space between the contacts thereof is reduced, so that the electromagnetic relay is miniaturized. Additionally, a magnetic field for extinguishing arc is formed by a back or counter electromotive force generated when the circuit is cut-off. Thus, the generated arc is extinguished.