Abstract: A magnetic deformable member includes a magnetic portion formed of a magnetic elastic body, and a base portion formed of a non-magnetic elastic body to cover at least a side surface of the magnetic portion. At least the magnetic portion has a magnetic deformable portion in which shape deformation is caused by application of a magnetic field. The magnetic deformable portion is provided at a boundary-side end portion on the boundary with the base portion. A display portion in which the shape deformation is displayed is provided on a front surface s1 of the magnetic deformable member. With the magnetic deformable member, a tactile feel or viewability of the display portion can be varied by deforming the boundary between the magnetic portion and the base portion.

Abstract: The present disclosure discloses a battery module including a cell assembly including cells having a lead attached thereto, a terminal busbar provided to face the lead and capable of contacting the lead, spring members pressed by a cover plate attached to the cell assembly, to apply an elastic force between the lead and the terminal busbar, and a magnet provided in at least one of the lead and the terminal busbar to provide a magnetic force capable of pushing the lead and the terminal busbar to closely contact each other.

Abstract: In a bistable magnetic actuator with a polarized magnetic circuit with parallel operating air gaps, wherein between the outer legs of a U-shaped soft-iron yoke a flat permanent magnet is integrated that carries a soft-iron center leg and applies a permanent-magnetically created magnetic flux to a rocking armature supported on the center leg, wherein at each outer leg a separately controllable excitation winding provides swiveling pulses for the rocking armature to swivel from one permanent-magnetically self-holding swivel position into the other, the permanent-magnetically created magnetic flux through the magnetic circuit closed over the rocking armature in each case for an electromagnetic magnetic flux created by the excitation winding of said magnetic circuit in a direction opposed to the permanent-magnetically created magnetic flux commutates into the other parallel magnetic circuit with the electromagnetically not excited excitation winding, swiveling over the rocking armature.

Abstract: An energy-saving electromagnetic switching device in the present invention includes a housing, and an electromagnetic assembly and a movable magnetic pole within the housing. The movable magnetic pole connects a resilience means which engages with the movable magnetic pole to control the electromagnetic switching device switched on and off. At least one locking assembly is set between the movable magnetic pole and the housing, via which the electromagnetic switching device can automatically and repeatably change from an on-state to an off-state if the electromagnetic assembly is momentarily energized. The electromagnetic switching device is energy-saved, has higher automatization degree, simple operation, and lower cost.

Abstract: The relay has a movable first contact, a second contact, and an actuating element operatively connected with an armature of the relay. The first contact is movable toward the second contact by the actuating element and dependent on a supply of current to the relay. A snap action spring connects the second contact to a housing of the relay. The second contact is positioned between two arrangements by the snap action spring.

Abstract: A polar electromagnet device has a drive shaft comprising an axis center supported so as to reciprocate in an axis center direction at a center hole of a spool wound with a coil, and a movable iron core attached to a lower end of the drive shaft on the axis center. The drive shaft is reciprocated with the movable iron core which reciprocates based on excitation and demagnetization of the coil. A permanent magnet is integrally arranged at the movable iron core on the same axis center.

Abstract: A relay comprises a movable body placed in a cavity which is formed on a substrate and surrounded by a spacer layer and sealed by a cover layer. The movable body comprises a first magnet which is permanently magnetized and has at least a first end. A nearby switching electromagnet, when energized, produces a switching magnetic field which is primarily perpendicular to the magnetization direction of the first magnet and exerts a magnetic torque on the first magnet to force the first magnet and said movable body to rotate and close an electrical conduction path at the first end. Changing the direction of the electrical current in the switching electromagnet changes the direction of the switching magnetic field and thus the direction of the magnetic torque on the first magnet, and causes the first magnet and said movable body to rotate in an opposite direction and opens the electrical conduction path at the first end.

Abstract: An electromechanical relay employing a movable first magnet and a nearby switching electromagnet is disclosed. The movable first magnet is permanently magnetized with a magnetic moment and has at least a first end. The switching electromagnet, when energized, produces a switching magnetic field which is primarily perpendicular to the magnetization direction of the first movable magnet and exerts a magnetic torque on the first magnet to force the first magnet to rotate and closes an electrical conduction path at the first end. Changing the direction of the electrical current in the switching electromagnet changes the direction of the switching magnetic field and thus the direction of the magnetic torque on the first magnet, and causes the first magnet to rotate in an opposite direction and opens the electrical conduction path at the first end. Multiple magnetic layers can be arranged to form closed magnetic circuits to facilitate switching and maintaining switched states.

Abstract: The present invention relates to a control device (1, 1?) of an electrical circuit comprising: a microswitch (2, 2?) comprising a moving element that can be driven by magnetic effect between a first stable state and a second stable state to control the electrical circuit, a fixed permanent magnet (10, 10?), a moving permanent magnet (11, 11?) that can be actuated between a first position, in which it forms, with the fixed permanent magnet (10, 10?), a substantially uniform permanent magnetic field (B0) holding the moving element in the first state or the second state, and a second position in which it is able to control the switchover of the moving element from one state to the other, an excitation coil (4) able to create a temporary magnetic field (Bb) able to cause the moving element to switch over from one state to the other when the moving permanent magnet (11, 11?) is in the first position.

Abstract: A method and apparatus for managing data, particularly in regard to non-volatile memory cells. In some embodiments, at least two actuating conductors are at least partially surrounded by a main ferromagnetic core and an adjacent hard magnet. When current is conducted through the actuating conductors, a flexible beam is induced to traverse a first air gap that defines a high resistance position and a low resistance position.

Abstract: A mechanical switch includes a pair of conducting contacts, metal located on and between the conducting contacts, a heater, and an electro-mechanical actuator. The heater is operable to apply heat that melts the metal. The electro-mechanical actuator is capable of moving one or both of the conducting contacts in a manner that causes the metal to either start physically bridging the conducting contacts or to stop physically bridging the conducting contacts.

Abstract: A forcibly guided relay is disclosed, with a housing, whose height is smaller than its width and whose width is smaller than its length. With this, the relay comprises an electromagnetic drive filling the length or the width of the relay, with a clapper-type contactor which comprises a drive arm which extends in the direction of the core and at its free end cooperates with a drive cam; several contact pairs, which are in each case formed by a contact spring and a fixed or spring-like counter-contact said contact springs extending in the direction of the core, and with the drive ends being in a forcibly guided engagement with the drive cam.

Abstract: An electromagnetic relay is provided which is capable of reducing a contact bounce at time of closing a contact. The electromagnetic relay is so configured that an opposed angle ? is 0°<?<45°, when viewed from a direction to which a normally open fixed contact and a movable contact slide before the normally open fixed contact comes into surface-contact with the movable contact spring.

Abstract: A system for protecting against unplanned state changes of a magnetic latching relay (100) includes logic switching logic circuits (101, 105) for controlling a driver circuit (103) that works to supply a drive voltage to a magnetic latching relay (109). The switching logic circuits (101, 105) work to detect any unplanned state changes that may occur due to vibration or the like of the magnetic latching relay (109). The invention acts to switch the magnetic latching relay (109) back to a desired state after this state change has been detected in a two-way radio transceiver or other electronic device.

Abstract: An electronic type protective relay integrates the mechanical structure into a single operation rod to protect electric machinery. The electronic type protective relay includes an insulating shell, a tripping rod, a magnetic-force device and an operation device. The tripping rod is pivoted in the inner part of the insulating shell and conducts two pairs of connection pins. The tripping rod includes a control magnetic core. The magnetic-force device includes a tripping electromagnet, a reset electromagnet, and a permanent magnet installed between the tripping electromagnet and the reset electromagnet. The operation device includes an auxiliary rod located on one side of the tripping rod, an operation rod installed between the tripping rod and the auxiliary rod and protruding beyond the insulating shell. The operation rod can be located at four locations and in cooperation with the auxiliary rod to stop or reset.

Abstract: In one embodiment, a semiconductor device having single or multi-layer intermediate layers that easily adhere to a glass frit and lead lines of respective interconnections is disclosed. In general, the single or multi-layer intermediate layers are formed on at least the top surfaces of portions of the respective lead lines on which the glass frit is placed.

Abstract: The present invention relates to a switch with a magnetic drive having an armature movable linearly between two end positions and connected to at least one switch contact, which is under the influence of magnetically generated forces in the end positions. The armature and a ferromagnetic element or shunt are arranged one behind the other in a space between a first and second stop. The stops are pole faces of magnetic circuits with a permanent magnet which exerts a force retaining the armature, movable toward the first stop by the force of an electromagnet, in the first stable end position when the shunt is in its end position at the second stop. Through the application of the shunt to the armature, the force exerted on the armature by the permanent magnet is reversed and transferred to the shunt, so that the shunt is moved to the second stop and the armature to the second stable end position on the shunt and held there by the force of the permanent magnet.

Abstract: An actuation device employing square-loop latchable magnetic material having a magnetization direction (polarization) capable of being changed in response to exposure to an external magnetic field is disclosed. The magnetic field is created by a conductor assembly with non-solenoid configuration. Once the magnetization direction of the material is so changed, the external magnetic field is no longer required to maintain the new magnetization direction. The latchable magnetic material is disposed on the mobile electrode of a switching device, and another magnetic material is disposed in spaced relation to the latchable magnetic material on a stationary electrode or surface. By applying an electrical current to a conductor assembly arranged proximate the latchable material, a magnetic field is created about the latchable magnetic material, to change the magnetization direction and thereby enable the attraction or repulsion of another magnetic material located on the stationary electrode.

Abstract: A polarized magnetic relay has a base body, an armature, an envelope that encompasses insulating material, a coil, a core and a bar-shaped permanent magnet. The base plane is defined by the bottom side of a base body. The armature is arranged between two contact springs that lie parallel to each other in a common plane. Two transverse terminal webs, which have their sheet metal plane extending parallel to the base plane, extend out of the envelope in the area of the rotational axis of the armature and these terminal webs are respectively connected with a fastening tab that has its sheet metal plane extending perpendicular to the base plane. The contact springs exhibit two spring arms and a connecting web, respectively, which has its sheet metal plane extending perpendicular to the base plane. The spring arms exhibit a contact making part and a part that is embedded in the envelope. The part that is embedded in the envelope emerges into the connecting web.

Abstract: An electromagnetic actuator has an iron core around which a coil is wound; two permanent magnets, the same poles of which are placed on the ends of the core which extend beyond the coil and which have the same direction of polarity; magnetic poles formed on either end of the iron core; a yoke which connects the poles of the magnets opposite those which face the core; and an iron armature which is supported by a fulcrum on the yoke in such a way that it is free to rotate around the fulcrum, and which has on either end a magnetic pole which faces one of the poles of the core.

Abstract: A polarized electromagnetic relay has a base body, an armature, an envelope that comprises insulating material, a coil, a core and a bar-shaped magnet. The base plane is defined by a bottom side of the base body. The armature is arranged between two contact springs that lie parallel to each other in a common plane. Two transverse terminal webs, which have their sheet metal plane extending perpendicular to the base plane, extend out of the envelope in the area of the rotational axis of the armature. The terminal webs are respectively connected with fastening tabs that have a sheet metal plane extending perpendicular to the base plane. The contact springs exhibit two spring arms and a connecting web, respectively, which has its sheet metal plane extending perpendicular to the base plane. The spring arms exhibit a contact making part and a part that is embedded in the envelope, respectively. The part that is embedded in the envelope merges into the connecting web.

Abstract: A switch device including an inner yoke and an outer yoke are arranged around the winding of an electromagnetic block, and a plate-shaped permanent magnet is inserted between the two yokes. A highly efficient actuation of the switching device is achieved by the assistance of the permanent magnet.

Abstract: An armature-mounting arrangement for a hinged-armature relay includes a yoke (3), an armature (1) positioned at an end portion of the yoke, and an armature holding spring (2) which has at least one switching contact thereon and which is mechanically coupled to the armature. The armature holding spring is formed as one piece with a return spring (5) for the armature and also with spring hooks (4). Each of the spring hooks has a first portion (4a) lying substantially flat on an outer side of the armature and a second portion (4b) extending from the first portion about the armature and lying almost flat against an outer surface of the yoke. This armature-mounting arrangement is a particularly uncomplicated and cost effective structure and its operation is also not particularly sensitive to fabrication tolerances of the armature and the yoke.

Abstract: An electromagnetic relay constructed as a hinged-armature relay in which an armature (5) is attached to a flat-shaped spring (6) which spring is constructed as one piece to serve both as a switch-contact spring and as a return spring and which is mechanically and electrically coupled to a load-current terminal (11), with the load-current terminal having a spring affixing area (11a) and a terminal area (11b), wherein the spring affixing area and the terminal area of the load-current terminal are bendable relative to one another. A response voltage of such a relay can be adjusted in a particularly uncomplicated and quick manner using a wedge-shaped adjusting tool (12) to bend the affixing area relative to the terminal area.

Abstract: The relay has a magnet system with an armature that operates on a switching spring via an actuating element. This switching spring has a frame-shaped contact spring as well as a fork-shaped reset spring, intermeshed in one plane and mutually decoupled, whereby the reset spring guides the actuating element via at least two linkage points lying in a line parallel to the pivot axis. The relay of the present invention provides a compact construction with few individual parts and a very low-friction operation.

Abstract: An electromagnetic relay includes a winding, a magnetic core disposed within the winding, and an armature mounted for movement at a first end of the winding. At least one movable circuit contact is operably associated with the armature and movable with respect to at least one stationary contact mounted in the relay responsive to motion of the armature. An end plate is mounted at an opposing end of the winding and an insulating sheet is folded about a portion of the winding. The insulating sheet has first and second sides, with the first side being secured on one end to the end plate, and the second end disposed between the armature and the first end of the winding. An outer frame covers at least a portion of the insulating sheet. The insulating sheet functions to reduce the occurrence of voltage breakdown within the relay.

Abstract: A microrelay including a substrate having a pair of fixed contacts fixed on a surface thereof and a movable section having a pair of movable contacts opposed to the pair of fixed contacts. The movable section includes a frame for fixing the movable section to the substrate; a movable body having the pair of movable contacts and a pair of magnetic bodies; and a coupling section for pivotally supporting the movable body to the frame. The substrate has a pair of magnetic force generating devices for supplying the pair of magnetic bodies with a magnetic force, thereby selectively causing contact between one of the pair of movable contacts and the fixed contact opposed to the one of the pair of movable contacts; and a magnetic force controlling device for applying the magnetic force generated by each of the pair of magnetic force generating devices only to the magnetic body corresponding to each of the magnetic force generating device.

Abstract: In a seesaw balance type microminiature electoromagnetic relay including an armature unit composed of two movable contact springs having a pivot arm formed at the center thereof and contacts formed at every end thereof, an armature having a protrusion on the back side for a pivotal movement, and an insert-molded insulator, a substrate unit composed of a common terminal for mounting the pivot arm electrically connected to a common terminal pin, a pair of switching terminals having fixed contacts for connecting the contacts of the springs electrically connected to terminal pins, and an electromagnet unit composed of a yoke, an exciter coil wound thereon, a flat shape permanent magnet provided between both ends of the yoke and two terminal pins electrically connected to the start and the end of the exciter coil, respectively; a hoop member is formed in an integrated configuration of a plurality of groups by a press blanking procedure, each group including a pair of movable contact springs, two non-magnetizing pl

Abstract: The relay of the present invention is economically adapted for nuclear and commercial applications. The reliability of the relay is enhanced by utilizing a split coil and a permanent magnet located therebetween. The so-called split coil/permanent magnet configuration supplements the upward forces generated by a kickout spring by positioning a permanent magnet so as to assist in holding the armature and contacts rigidly in the off position. The design of the present invention assures that the armature stays in the desired position even when the relay is subjected to shock and vibration forces present in the environment.

Abstract: A solenoid actuator comprising a coil or coils of electrical wire and a plugnut and movable core within the coil(s). A magnetic yoke surrounds the coil(s), the axis of the latter extending across the magnetic circuit defined by the yoke. Relatively large and small permanent magnets are associated with the yoke on opposite sides of the axis, the magnets producing flux in opposite directions. A flux sensor, closer to the small magnet, senses changes in direction of the flux. When the core and plugnut are separated, the large magnet flux predominates throughout the yoke. When the core engages the plugnut, the small magnet flux predominates in its portion of the yoke, this change in flux direction being detected by the sensor. Thus, the sensor can be used to indicate the position of the core with respect to the plugnut.

Abstract: A latching relay switch assembly which includes a coil section and a switch or contact section. The coil section includes at least one permanent magnet and at least one electromagnet. The respective sections are, generally, arranged in separate locations or cavities in the assembly. The switch is latched by a permanent magnet assembly and selectively switched by an overriding electromagnetic assembly.

Abstract: A molded case circuit breaker includes a clear viewing window through its top cover to enable the position of its internally disposed separable electrical contacts to be externally visually discerned. A manually engagable handle extending through an opening formed in the top cover of the molded case of the circuit breaker has an electrically insulating strip or barrier secured thereto and movable therewith for covering the clear viewing window when the separable contacts are in their CLOSED position to prevent smoke and other arc products resulting from circuit breaker interruptions from obstructing the clear viewing window. The viewing window may be inserted in the top cover during the molding process or may be subsequently disposed in the top cover in the form of an insert fixedly secured thereto.

Abstract: A bistable polarized electromagnet is provided having a mobile armature with a permanent magnet and pole pieces which cooperate with a fixed yoke through two pairs of air gaps for each of which one is variable whereas the other is substantially constant. This electromagnet may further have asymmetric or symmetric forms of revolution for easy replacement of the excitation coil.

Abstract: A solenoid which is driven positively in both directions by reversal of coil current and held in place at either end by flux from a permanent magnet located at the center of the frame. The permanent magnet is formed of two opposed sections fitting tightly between the plunger tube and frame, and is located in a space between two coils. In one form the two magnet sections are formed of compressible material and are recessed to fit closely around the plunger tube.

Abstract: A polarized electromagnet device is constructed with a magnetic block movable within a specially designed yoke in response to the attraction forces of permanent magnets and an electromagnetic coil. The movable block and yoke designs form magnetic circuits which result in a relatively large permanent magnet attraction forces on the attraction side of the device and relatively small permanent magnet attraction force on the return side such that a spring load on the return side is not required.

Abstract: A bistable type of electromagnetic relay has a movable block including a pair of permanent magnet units. Each of the magnet units has a permanent magnet and a pair of generally U-shaped magnetic plates attached to its opposite poles. A rotation of the movable body actuates relay contact members. A yoke has opposite ends, each formed by a pair of opposing end pieces, the end of the magnetic plates being arranged in spaces defined by the opposing end pieces. A coil supporting a spool has a through-hole for receiving a core which is inserted therein. Flanges are formed at opposite ends and at a center portion of the spool, with a plurality of protrusions protruding outwardly on both sides of each flange. A pair of base members have grooves and recesses for receiving the protrusions on the flanges of the spool, for rotatably supporting the movable block.

Abstract: A miniaturized electromechanical relay (1) having an armature (14) and a spring assembly (13) mounting contacts with a magnetic core member (15) for activating the armature to operate the spring assembly to engage and disengage the contacts. The magnetic core member is formed of hard and soft magnetic powdered materials (150, 151) sintered together to form a fused boundary therebetween for returning magnetic flux generated by the magnetic core pole areas through the fused boundary and the soft magnetic powdered materials.

Abstract: An electromagnetically operated relay having a spring which compensates for misalignment of a moveable block as shown and described. The movable block reciprocates within said relay housing in response to forces exerted by the electromagnet. The block includes projections which engage openings in an leaf spring which biases the block. The spring to block engagement provides compensation for misalignment of the block, and for unequal forces applied to the block and/or spring.The compensation provided by the spring to block engagement is achieved by a loose fit between projections on the slidable block and openings in the spring. The freedom of movement provided by the slots allows the spring to bulge in a direction opposite to the force on the spring end with respect to the sliding block. By creation of this bulge between the two two projections on the sliding block, compensation is provided to the spring system.

Abstract: An electromagnetic relay has a casing of electrically insulative material which is divided by an insulating partition into a coil space for receiving an electromagnet and a switching space for receiving a contact assembly. An armature is magnetically coupled to the electromagnet and is operatively connected to the contact assembly for switching contact operation thereof in response to energization of the electromagnet. The partition extends along the entire length of the electromagnet without leaving any communication path between the coil space and the switching space, such that the electromagnet in the coil space can be insulatively separated from the contact assembly in the switching space within the length of the electromagnet.

Abstract: A polarized relay comprises a bar-like core having coil, and a yoke connected to the core and extending in parallel therewith. An armature including a permanent magnet is laterally movably disposed between a pair of upstanding legs formed at a free end of the yoke. Movable contacts are operationally coupled to the armature. The upstanding legs of the yoke have effective areas of magnetic pole. Upon energization of the coil, the armature is moved toward the upstanding leg to close one of the stationary contacts by overcoming the resilient resistance of the movable contact arm. Upon deenergization, the movable contact is held being contact with stationary contact under the magnetic force between the armature and upstanding leg so as to perform a bistable operation.

Abstract: A switch device comprises a support member having at least first and second stationary contacts thereon. An armature is mounted on the support member by means of a body of elastomeric material that is attached to both the support member and the armature. Deformation of the body of elastomeric material allows the armature to pivot relative to the support member between a first position in which electrically-conductive material of the armature establishes electrically conductive connection between the stationary contacts and a second position in which the armature is spaced from at least one of the contacts. At least one permanent magnet is carried by the armature. An electrically-driven switch actuator is mounted stationarily relative to the support member and has first and second energization states.

Abstract: A polarized electromagnet relay with reduced width and height is disclosed to have on a base plate an electromagnet block, an armature block with a permanent magnet and at least one contact assembly. The armature block is cooperative with the electromagnet block and is driven in response to the energization thereof to reciprocate between two operating positions so as to actuate the contact assembly for contact switching. The electromagnet block includes a generally E-shaped yoke with a pair of opposed side legs and a center leg defining a core around which the excitation coil is wound. The contact assembly is mounted on the lateral side of the base plate to be received between the adjacent side leg and the base plate so as not to add an extra dimension to the width of the relay.

Abstract: An improved polarized relay characterized by a coil body being received in a recess of a base body along with a permanent magnet arrangement which has a pair of pole plates extending in a common plane with portions bent to form an air gap for receiving a free end of an armature, a flux plate extending perpendicular to the axis of the coil and having a recess to mount the armature and segments extending parallel to the pole plates to form spaces for receiving at least one permanent magnet with the recess being entirely closed by a protective covering so that the only exposure of the magnet arrangement and coil to the contacts is through an opening in which the armature extends to actuate the movable contact element. The polarized relay due to the insulation of the magnet arrangement and the coil is particularly adapted for contacts handling high currents at high ambient temperatures.

Abstract: One end of a yoke is arranged near one end of an iron core of an electromagnet. The other end of the yoke is coupled to the other end of the iron core. The one end of the yoke has side walls which oppose the side surfaces of the one end of the iron core, and a bottom which opposes the bottom of the iron core. The magnetic pole at the other end of the iron core is guided to the other end of the yoke. A movable member is disposed at the one end of the iron core. The movable member comprises a permanent magnet disposed at the center of a frame, and iron pieces, one end of each of which abuts against the poles of the permanent magnet. The movable member partially surrounds the iron core so that the iron pieces are located between the iron core and the side walls of the yoke. The movable member is moved in the direction perpendicular to the axis of the iron core by the sum of the magnetic fields of the permanent magnet and the electromagnet.

Abstract: Having a core wound with the magnetizing winding, and a yoke separated from the core, and an armature which has the permanent magnets, both pole pieces of the core and the facing-surfaces of the yoke being positioned apart in a predetermined space; in said space the magnetic poles of the permanent magnets being stationed; and through a joint-work of the magnetic flux created by the magnetizing winding and the armature flux created by the permanent magnets the armature is made to relatively reverse-displace against the core and the yoke.

Abstract: A high speed electromagnetically actuated electromechanical switch is provided by a bistable electric snap blade operated by an electromagnetic actuator. A magnetically permeable yoke directs the flux paths of a pair of coaxial coils. An armature plunger shuttles axially reciprocally in the coils between first and second positions. The snap blade has a pair of cantilever arms extending towards each other to engage the armature plunger in the gap therebetween for lateral flexing actuation. Energization of a given coil provides a primary flux path around that coil through the yoke and the armature plunger, and provides a secondary flux path around both coils through the yoke and the armature plunger. The primary flux path force around either coil is always stronger than the secondary path.

Abstract: An electromagnetic relay has a hallow coil body and coil having a longitudinal axis with a bar-shaped armature pivotably mounted for movement in and extending through the coil body, a permanent magnet arrangement having polarization directions perpendicular to the coil axis, two yokes disposed in a single plain parallel to the permanent magnet arrangement, two pole plates connected to the yokes and also extending perpendicular to the coil axis, and a flux plate overlapping and spaced from the yokes and having a flat segment with the magnet arrangement being disposed in the volume defined between the overlapping area of the flux plate and the yokes, the magnet arrangement extending substantially longitudinally parallel to the coil axis. The structural arrangement of the flux plate and yokes so as to define a volume which can accommodate the magnet system permits the magnet system to be encompassed within the relay without adding to the overall length thereof, thereby adapting the relay to miniaturization.

Abstract: In a transfer-type electromagnetic relay comprising first and second lead members (26, 27) for first and second fixed contact studs (31, 32), respectively, and a third lead member (28) for an armature (36), first and second permanent magnets (46, 47) are directed to back surfaces of the first and the second lead members, respectively, with poles of the same name brought nearer to the respective leads. A single permanent magnet may be placed in the above-mentioned manner. Preferably, first and second arm members (43a, 43b) are attached to a leaf spring (37') fixed to the armature and extended from a central portion of the leaf spring on both sides thereof in directions different from each other. The leaf spring is manufactured without any bend and is therefore substantially flat. The third lead member partially comprises a non-magnetic portion at a center area thereof to support the armature.

Abstract: An auto-holding electromagnetic relay is described comprising a main yoke having perpendicular and horizontal parts at right angles to each other. An exciter coil is mounted on the inner surface of the perpendicular part. On the outer surface of the horizontal part is mounted a permanent magnet on the upper surface of which is mounted an auxiliary yoke, one end of which is adapted to pivotably mount the armature. The main yoke has a main yoke projection extending from its perpendicular part which includes a horizontal projection part extending above and in the same direction as the horizontal part of the main yoke. The armature has an armature projection extending over the horizontal part of the main yoke projection and is capable, on pivoting of the armature, of making contact with it.

Abstract: A solenoid device adapted for use with an automobile door locking device, for example, comprises a shaft, two magnetic cores, a permanent magnet sandwiched between the cores, two field coils for producing a magnetic flux along the shaft, a magnetic yoke body for forming a magnetic flux path along the outsides of the coils, a magnetic center plate disposed between the coils, and two magnetic yoke end plates. The permanent magnet and the cores are fixed to the shaft to form a magnetic plunger. The center plate includes an annular magnetic flux path portion through which the magnetic plunger extends.