Abstract: The present invention relates to a contact assembly for a relay for switching high load currents having at least one switch contact and a braid having at least one braid end, which are electrically conductively connected to each other by a connection element. Further, the invention relates to a relay for switching high load currents with a contact assembly. Finally, the invention relates to a method for mounting a relay for switching high load currents. For the simple, electrically conductive connection of the braid and the switch contact without the contact assembly produced requiring much space within the relay, it is provided in accordance with the invention that the connection element is equipped with a contact portion directly connected to the switch contact and with a connection strap connected to the braid end, wherein the connection strap is inclined relative to the contact portion.

Abstract: The present invention relates to a contact arrangement for a relay for switching high load currents. Furthermore, the invention relates to a relay for switching high load currents having a contact arrangement. Finally, the invention relates to a method for assembling a relay. In order to be able to assemble the contact arrangement in the relay in an at least partially automated manner, without additional retention devices being required for a cord, there is provision according to theinvention for the cord to be retained in an inherently stable manner owning to its shape as a self-supporting structure and for the method to have a method step in which the cord is shaped to form a self-supporting structure with a bent shape.

Abstract: A relay with multiple contacts includes a coil assembly and a contact assembly. The contact assembly includes at least one base having at least two slots defined therein and at least two bridge members respectively received in the at least two slots. Each bridge member has at least two terminal portions respectively formed thereon. Each terminal portion has a movable contact mounted thereon. At least one connector has at least two fixed contacts mounted thereon. Each fixed contact selectively connects with the corresponding movable contact. A first conducting member and a second conducting member are located between the coil assembly and the contact assembly. The first conducting member has at least one first fixed contact for selectively connecting with the corresponding movable contact. The second conducting member has at least one second fixed contact for selectively connecting with the corresponding movable contact.

Abstract: Disclosed is a wedge shaped actuator device configured to provide separation of spring supported electrical contacts in an electrical switch. The wedge is configured with dual contour sides to maximize transfer of energy from a drive solenoid to the contact carrying springs. Portions of the wedge are relieved to allow for uninhibited movement of the wedge over side surfaces of the contact carrying springs to avoid digging in of any rough materials from the side edges of the spring as may be occasioned due to stamping techniques used to form the springs.

Abstract: An electromagnetic relay switches to conduct and interrupt currents having different magnitudes and flowing though mutually opposite paths via the electromagnetic relay. The relay includes a coil generating a magnetic force and a pair of contact sections opened and closed selectively by the magnetic force. The contact sections comprise a pair of fixed contacts and a pair of movable contacts. Each fixed contacts is held by a pair of conductive fixed holders and is near a tip section of each fixed holder. The movable contacts are fixed to a conductive movable holder and moves toward and away from the fixed holders selectively in response to the magnetic force. The relay further includes two arc-extinguishing magnet members adjacent to the contact sections such that, the arc generated by interrupting one current having a magnitude larger than the other current is extended toward the tip section at each contact section.

Abstract: Two electromagnetic contact devices 1a, 1b are arranged adjacently, a reversible unit 2 is detachably mounted on these electromagnetic contact devices, and two auxiliary contact point units 4a, 4b are detachably mounted on the reversible unit. In addition, two surge absorption units 3a, 3b are detachably mounted on the electromagnetic contact devices.

Abstract: A circuit breaker comprises a magnetic trip mechanism configured to provide a first mechanical driving force, a low voltage trip mechanism configured to provide a second mechanical driving force, a first micro switch configured to generate and output a first trip signal indicating that the circuit breaker has performed a trip operation due to the occurrence of a fault current on a circuit, a second micro switch configured to generate and output a second trip signal indicating that the circuit breaker has performed a trip operation due to the occurrence of a low voltage on the circuit, a first driving force transmission mechanism configured to transmit the first mechanical driving force from the magnetic trip mechanism to the first micro switch, and a second driving force transmission mechanism configured to transmit the second mechanical driving force from the low voltage trip mechanism to the second micro switch.

Abstract: An electromagnetic relay includes a case, a base, a magnet coil, a movable member driven by electromagnetic force of the coil, a moving contact, a fixed contact engaged with or disengaged from the moving contact, a fixed contact holding member fixed to the base with the holding member passing therethrough and having a load circuit terminal, and a magnet applying Lorentz force to arc generated between the fixed contact and the moving contact. The case includes a guide part on its region with which arc extended in a Lorentz force application direction collides. The guide part guides arc after the collision to extend arc in a different direction from the application direction. The case includes a case partition wall between the guide part and the base. The holding member has a guide part opposing portion opposed to the guide part. The opposing portion is covered with the case partition wall.

Abstract: A plurality of terminal chambers (20a) to (20e) is formed in a housing (16) by using a plurality of partition walls (24a) to (24e) to partition. In the terminal chambers, fixed contactors (31) each having a fixed contact point (31d) and a terminal screw (31a) are mounted. Engaged portions (31b) are formed integrally with the fixed contactors. Further, a press-fit engaging portion (26) is provided in each of the terminal chambers. The terminal chamber is formed as a space different from a space accommodating a movable contact point support, and the press-fit engaging portion is engaged by the engaged portion by press-fitting.

Abstract: An electromagnetic relay includes a coil, a movable member, first and second fixed contact supports each having first and second fixed contacts, and a movable body having first and second movable contacts. A third fixed contact is arranged on the second fixed contact support at a position away from a line passing through the first and second fixed contacts, and a third movable contact is arranged on the movable body. When the movable member is driven by electromagnetic force of the coil, the movable contacts contact the fixed contacts at a contact portion between the first fixed contact and the first movable contact, a contact portion between the second fixed contact and the second movable contact, and a contact portion between the third fixed contact and the third movable contact.

Abstract: An electrical switching device including a base terminal that extends substantially in an axial direction and has a base contact. The switching device also includes a movable terminal that extends substantially in the axial direction and has a mating contact. The movable and base terminals extend generally parallel to each other and are separated by a field spacing. The movable terminal is selectively movable to and from the base terminal to electrically connect the base and mating contacts at a contact interface. The switching device also includes a magnetic shield that is located between the movable and base terminals within the field spacing. The movable terminal experiences a separation force when current flows through the base and movable terminals in opposite directions. The magnetic shield is configured to reduce the separation force experienced by the movable terminal to facilitate maintaining the contact interface between the base and mating contacts.

Abstract: An electromagnetic contactor includes a fixed core into which a bobbin of an electromagnetic coil is inserted and fitted, a movable core, a movable insulating base, a retracting spring, a fixed insulating base, and a supporting mechanism. The supporting mechanism is inserted into a through-hole formed in a thickness direction of the fixed core, and is configured in such a manner that a buffer spring is arranged between both ends of a supporting member that is arranged so as to protrude from the through-hole and a lower surface of the coil bobbin. An elastic member is provided between the fixed insulating base and a lower surface of the fixed core.

Abstract: A relay with multiple contacts includes a coil assembly and a contact assembly. The contact assembly includes at least one base having at least two slots defined therein and at least two bridge members respectively received in the at least two slots. Each bridge member has at least two terminal portions respectively formed thereon. Each terminal portion has a movable contact mounted thereon. At least one connector has at least two fixed contacts mounted thereon. Each fixed contact selectively connects with the corresponding movable contact. A first conducting member and a second conducting member are located between the coil assembly and the contact assembly. The first conducting member has at least one first fixed contact for selectively connecting with the corresponding movable contact. The second conducting member has at least one second fixed contact for selectively connecting with the corresponding movable contact.

Abstract: In an electromagnetic relay, length from a movable contact to an end portion of a movable element on a first end side is set greater than length from the movable contact to another end portion of the movable element on a second end side opposite to the first end side. A direction of a Lorentz force acting on a portion of the movable element from the movable contact to the end portion of the movable element on the first end side is conformed to a direction for bringing fixed contacts and movable contacts into contact with each other. Thus, separation between the movable contacts and the fixed contacts due to an electromagnetic repulsive force can be inhibited.

Abstract: A device and method for operating automotive battery system relays and related switches. By aligning a magnetic field with a direction of current flow in a contact plate disposed between magnets that are producing the field, a generated Lorentz force can be used to promote arc extinguishing during a relay opening sequence, while simultaneously reducing the tendency of the Lorentz forces to interfere with the operation of a solenoid or other switch-activating mechanisms. By using a rotary-based mechanism to establish contact between a contact plate and current-carrying terminals, the likelihood of inadvertent opening of the relay is reduced. Such devices and methods may be used in conjunction with hybrid-powered and electric-powered vehicles.

Abstract: An electrical switching device includes first and second circuit assemblies. Each of the first and second circuit assemblies includes a base terminal and a moveable terminal movable between an open state and a closed state. The movable terminal is electrically connected to the base terminal in the closed state. An actuator assembly is electromechanically controlled by a motor. The actuator assembly includes a pivot member rotated by the motor that has a post extending outward from a pivot body. An actuator is moved by the pivot member and is movable between a first position and a second position. The actuator is operatively coupled to the moveable terminals of the first and second circuit assemblies. The actuator moves the movable terminals to the closed state as the actuator is moved from the first position to the second position. The actuator has a pocket with a compression spring received in the pocket. The compression spring extends between a first end and a second end. The first end engages the actuator.

Abstract: An electromagnetic relay includes a coil, an armature that is electromagnetically attracted by the coil when current flows through the coil, two fixed contacts, a movable spring disposed to be movable to the fixed contacts, a conductive plate that is connected to the movable spring and including two movable contacts. The movable contacts are brought in contact with the fixed contacts respectively via the movable spring by the armature attracted by the coil. When the fixed contacts and the movable contacts are in contact, the fixed contacts are electrically connected to each other via the conductive plate. The movable spring is made of an insulating material.

Abstract: A relay having a first opening and closing part including an openable and closable first gap; a second opening and closing part including an openable and closable second gap, the second opening and closing part being placed side by side with the first opening and closing part so that the first gap and the second gap are arranged side by side; a magnetization driving part to cause the first opening and closing part and the second opening and closing part to simultaneously operate; and a permanent magnet to apply a magnetic field on the first and second gaps in the same direction.

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: A relay includes a permanent magnet and a magnetic circuit. The permanent magnet is disposed between a pair of electromagnets. The pair of the electromagnets is formed by winding coils around body portions of spools. Each spool has flanges integrally formed on both upper and lower end portions thereof. The magnetic circuit is formed by a yoke spanning the spools and the permanent magnet. The permanent magnet is held by the upper and lower flanges of a pair of the spools that are juxtaposed.

Abstract: A switch and an electronic device maintain a power supply ON state until data processing is completed, and automatically turn OFF the power supply after the data processing is completed. The switch includes a rotation operating body that does not receive an operation force from an operating element when OFF operated is arranged inside the operating element. The rotation operating body includes a switch operating portion for turning ON a power supply switch mechanism and a return spring regulating piece for biasing a return spring in an anti-biasing direction. A regulating state of the return spring regulated by the return spring regulating piece is held, where the ON state of the power supply switch mechanism is held with a permanent magnet, and the ON state of the power supply switch mechanism is released by applying a release force on the permanent magnet when the power supply is reset.

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 invention is directed to a switch assembly which can be used in situation in which the switch accommodates the flow of high voltage current. An actuator assembly with moveable contacts is moved by a motor driven armature. The moveable contacts are in electrical engagement with the stationary contacts when the armature is in the first position, and the moveable contacts are spaced from the stationary contacts when the armature is in the second position. By angling the stationary contacts and moveable contacts, the linear motion of the armature causes the moveable contacts to move across the surface of the stationary contacts as the armature approaches the first position. As all of the movements of the assembly are in a direction parallel to the axis of the armature, the assembly can be manufactured and operated reliably in a relatively small space. In addition, the linear movement on the angled contact provides for a positive electrical connection even in adverse environments.

Abstract: The invention deals with a kind of switchboards, especially involving contactors, cores and driving circuits. The invention has solved three problems of high driving power, high consumption and short service life in current contactors, and has provided a LCDC contactor inlaid with driving circuit and controlling port. LCDC contactor in this invention consists of field coils, movable and fixed cores. The fixed core is folded with silicon-steel sheets, and the permanent magnet laid in the fixed core. LCDC contactor includes driving circuit inside, the field coils are connected with driving circuit and the circuit connecting external power is used to control signal of driving coils. This invention provides a controlling system constituted of the LCDC contactors. Low power consumption, effortless driving, long service life are the main beneficial effects. The LCDC contactor can directly employ nominal voltage DC 24V switching power with a remarkably energy-saving effect.

Abstract: A relay has a magnet system with a core partially enclosed by a coil. A yoke has a first yoke leg attached to a first end of the core and a second yoke leg extending parallel to the core. The second yoke leg has an armature mounting portion formed on an upper side of the second yoke leg remote from the coil. A pole has a first pole leg connected to a second end of the core and a second pole leg extending parallel to the core. The second pole leg has an upper surface substantially aligned with the armature mounting portion. A fixed contact is arranged on a fixed contact carrier substantially aligned with the second pole leg. The arrangement of the magnet system ensures precise positional alignment during extrusion coating with a plastic material.

Abstract: A silent electromagnetic relay in which a predetermined degree of silencing effect can be maintained regardless of a change to the specification, a higher silencing effect can be obtained at the time of return, the parts control is easy, and the cost of manufacturing is low. A first silent spring is mounted in a position of an inward face of a moving iron to be attracted to an iron core of an electromagnet portion, and an L-shaped moving iron turning based on excitation and demagnetization of the electromagnet portion is housed in a housing that is a resin molded product. Furthermore, a second silent spring for coming in contact with an inner face of the housing is mounted to an outward face of the moving iron and on an opposite side to the first silent spring.

Abstract: Disclosed are a position switch and a circuit breaker having the same. As contact plates having an elastically variable height are provided between switch blocks and switch levers, each of a testing contact plate and a running contact plate may compensate for inferior dimensioning of the switch blocks and the switch levers. This may allow a position of a breaker body to be rapidly and precisely displayed, and may prevent damage of the position switch provided at the breaker body. Furthermore, connection inferiority between a terminal of the breaker body and a terminal of a cradle may be prevented.

Abstract: An electromagnetic relay includes a relay coil assembly, an armature, and a contact system. The contact system includes a stationary contact assembly stationary contacts and moveable contact springs adjacent to the stationary contacts. The moveable contact springs have a projecting portion. The armature is pivotably actuated in response to an electromagnetic force generated by the relay coil to move the at least one contact spring linearly between a first position and a second position. The stationary contact assembly includes an overmold portion attached to the at least one stationary contact. The overmold portion includes a dielectric material and is bonded to the at least one stationary contact to maintain a predetermined configuration of the stationary contact relative to the at least one moveable contact spring.

Abstract: A relay includes a contact point block having a support shaft with both ends spanning a contact point base, a plunger having a movable contact at a lower end thereof, and a movable iron piece configured to drive the plunger and to have a plate spring. The relay also includes an electromagnetic unit and a base block having a fixed contact point at a position opposite to the movable contact point. The movable iron piece is supported on the supporting shaft. The plunger is inserted through an operation hole of the contact point base. Upper and lower surfaces of the contact point block are held by the electromagnetic unit and the base block. The electromagnetic unit directly fixes the iron core to an upper surface of the contact point base.

Abstract: An electromagnetic relay includes a base, an electromagnet unit, a movable piece movable due to a function of the electromagnet unit, a card that is supported by the base so as to swing freely and is swung by the movable piece, and a contact structure that is opened and closed by swinging of the card, the card and the base respectively having protrusions and holes so that the protrusions fit into the holes to enable the card to swing freely.

Abstract: An electromagnetic relay has a relay coil, an armature, a pusher and a contact system. The armature is actuated by the relay coil, and linked to the pusher to drive the pusher to operate the contact system. A set of stationary contact springs and a set of moveable contact springs have a gap separating them. The moveable contact springs connect to the pusher and to a pivot point. The stationary springs have a notch therein adjacent to the base structure portion. The pusher movement causes the stationary contact springs and the moveable contact springs to engage or disengage, and to automatically adjust the overtravel angle of the stationary contact springs relative to the moveable contact springs by bending the stationary contact spring at the notch of the stationary contact spring.

Abstract: The electro-magnetic relay comprises a contact block which is structured to uniformly maintain the contact resistance between the terminals of two circuits. Fixed contacts are provided for each of the terminals of the two circuits and each of two sets of a pair of movable contacts in positions corresponding to these is supported by two both-end-supported movable springs. An insulation sheet and a press spring are overlapped over the two movable springs and disposed as a bridge. A pair of tongues are formed on the press spring by a Z-character shaped cut and by an armature pressing their tips, the insulation sheet and press spring transforms to an upward concave shape, the two movable springs bend and are taken in inside while inclining and the movable contacts touch the fixed contacts while sliding.

Abstract: An electrical switch element for a relay includes a base, a compensating element, and an actuating device. The base is provided with fixed contacts. The compensating element includes first and second switch contact carriers provided with switch contacts that correspond to the fixed contacts. The first and second switch contact carriers are connected by a rigid body joint arranged there between such that the first and second switch contact carriers are pivotable about a pivot axis. The rigid body joint has a support surface. The actuating device is in contact with the support surface. The actuating device applies a switching force to the support surface to cause the first and second switch contact carriers to pivot about the pivot axis to move the switch contacts into or out of electrical contact with the fixed contacts.

Abstract: An electromagnetic relay includes a base including a fixed contact piece and a movable contact piece. The movable contact piece includes a movable contact point that is moved to contact and be separated from the fixed contact piece at a fixed contact point by driving the movable contact piece. The movable contact piece includes a terminal portion held in the base and partially protruding from the base, a first contact piece portion connected to the terminal portion and protruding from the base at a different position from the terminal portion, a bent portion connected to the first contact piece portion and changing a protruding direction gradually, and a second contact piece portion connected to the bent portion, extending in a different direction from a base portion, and provided with the movable contact point.

Abstract: An electromagnetic relay includes a coil, an armature that is electromagnetically attracted by the coil when current flows through the coil, two fixed contacts, a movable spring disposed to be movable to the fixed contacts, a conductive plate that is connected to the movable spring and including two movable contacts. The movable contacts are brought in contact with the fixed contacts respectively via the movable spring by the armature attracted by the coil. When the fixed contacts and the movable contacts are in contact, the fixed contacts are electrically connected to each other via the conductive plate. The movable spring is made of an insulating material.

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: According to the invention, an electromagnetic switch includes a pair of fixed contacts, a movable magnetic core, a magnetic coil, and a fixed magnetic core. The movable magnetic core is configured to be moved by a magnetic attraction, thereby establishing an electrical connection between the fixed contacts. The fixed magnetic core is configured to create the magnetic attraction when the magnetic coil is energized. The fixed magnetic core has a base portion and a disc portion. The base portion is arranged to face the movable magnetic core. The disc portion is fixed to the base portion and formed of a stack of metal sheets including at least one base metal sheet and a balance metal sheet. The balance metal sheet has a thickness that is predetermined to balance a difference between a desired thickness of the disc portion and a total thickness of the at least one base metal sheet.

Abstract: In an electromagnet switch, a stationary iron core is composed mainly of a base part and a disk part. The base part is faced to a plunger and the disk part is forcedly inserted and fixed to a boss part formed in the base part. The disk part is composed of a metal plate of ferromagnetic substance (iron plate) and another substance plate (made of resin or rubber and the like, for example,) of a smaller spring constant or a larger damping coefficient than that of the metal plate. The metal plate and another substance plate are laminated. Another substance plate absorbs or reduces the impact force when the plunger is electromagnetically attracted toward and collides with the base part. The propagation of a large impact noise or crashing sound is thereby suppressed, and as a result the impact noise can be reduced.

Abstract: A switchgear comprises a switching device, such as a relay, with a switching mechanism. A printed-circuit board that is provided with at least one electronic component is electrically connected to the switching device to form a supplementary electrical circuit, which receives an operating voltage supplied to the switching device.

Abstract: An electromagnetic block and a movable block are attached onto a base in an inclination attitude. Contact mechanisms press-fitted from above the base are laterally arranged in the inclination attitude, and the contact mechanisms are arranged in parallel in upper and lower stages. Idle end portions of movable contact pieces in the contact mechanisms are latched in a card which is linearly moved in a lateral direction. Terminals are projected downward from a bottom surface of the base, one of the terminals is connected to the fixed contact pieces of the contact mechanism, and the other terminal is connected to the movable contact pieces of the contact mechanism. The upper contact mechanism and the lower contact mechanism are alternately arranged in the lateral direction.

Abstract: It is intended to provide an electromagnetic relay which resolves problems of large base size and difference in spring constant. In a facing gap defined between a pair of electromagnet units disposed on a base in parallel to each other and with shaft lines being oriented to an identical direction, a pair of moving contact springs overlaid along a vertical direction on the base and an A-fixed terminal unit and a B-fixed terminal unit provided with a plurality of contacts to which contacts of the moving contact springs selectively contact depending on excitation/non-excitation states of the electromagnetic units are housed. At least one of component parts of the respective electromagnetic units are included in electromagnetic connection passages between the moving contact springs and C-terminals.

Abstract: The micro relay of the present invention comprises a base substrate 3, an armature block 5, and a cover 7. The base substrate 3 has a storage recess 41 for accommodating an electromagnetic device 1. The storage recess is composed of a hole 41a penetrating the base substrate 3 and a thin storage recess lid fixed on the one surface of the base substrate to close the hole. The electromagnetic device 1 is isolated from a contact mechanism by the storage recess lid 41b to increase the reliability of the contacts. The electromagnetic device 1 includes a yoke 10, a coil 11 wound around the yoke to generate a flux in response to an exciting current, and a permanent magnet 12 secured to the yoke to generate a flux flowing through an armature 51 and the yoke 10. Because the permanent magnet 12 is secured to the yoke 10, this micro relay can reduce the thickness.

Abstract: An electromagnetic relay includes an electromagnetic unit operable so as to generate a magnetic field perpendicular to a bottom wall of a housing when excited such that an actuating plate pivots from a releasing position to a pushing position, where a magnetically-attractable end portion of the actuating plate is attracted by the electromagnetic unit and where an actuating end portion of the actuating plate moves toward a first conductive plate, thereby driving a pushing block to move a resilient end portion of the first conductive plate toward a second conductive plate. Hence, first and second contacts on the first conductive plate contact electrically and respectively third and fourth contacts on the second conductive plate.

Abstract: To provide a small-sized electromagnetic relay capable of reducing an internal resistance of a contact circuit as much as possible, and also capable of carrying a high current to the relay. The electromagnetic relay includes an electromagnetic driving block composed by a coil, an iron core, a yoke, and an armature; fixed contacts each provided on one end of each of a pair of terminals fixed to a base; and a movable spring having movable contacts provided at positions corresponding to the respective fixed contacts, the armature driving the movable spring depending on whether or not a current is carried to the coil, thereby opening or closing a contact circuit, wherein the movable spring has both ends supported by the base, the movable spring arranged in parallel to the terminals, and the movable contacts are provided on the movable spring.

Abstract: To reduce the internal resistance of small electromagnetic relays of a one-circuit three-contact gap type in order to make it possible to allow large electric currents and at the same time to improve the connection between the fixed contacts and the moveable contacts. Fixed contacts on the fixed terminals are positioned at each apex of an approximate triangle on the upper surface of the insulation base. Moveable contacts are installed on the lower surface of the moveable plate, and are respectively placed in a position which corresponds to each of the fixed contacts. The moveable plate is fastened to the moveable spring whose both ends are held onto the sides of the insulation base, and moves at a specified distance from the fixed contacts due to the pressure of the moveable spring. The construction results in the movable contacts contacting their corresponding fixed contacts at the three positions with uniform contact strength.

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: To provide a small-sized electromagnetic relay capable of reducing an internal resistance of a contact circuit as much as possible, and also capable of carrying a high current to the relay. The electromagnetic relay includes an electromagnetic driving block composed by a coil, an iron core, a yoke, and an armature; fixed contacts each provided on one end of each of a pair of terminals fixed to a base; and a movable spring having movable contacts provided at positions corresponding to the respective fixed contacts, the armature driving the movable spring depending on whether or not a current is carried to the coil, thereby opening or closing a contact circuit, wherein the movable spring has both ends supported by the base, the movable spring arranged in parallel to the terminals, and the movable contacts are provided on the movable spring.

Abstract: The invention relates to a contact arrangement of a relay with a contact head (11) with a crown (17) which encloses a contact surface (15) and is raised with respect to the contact surface. According to the invention, for increasing the contact reliability with a dry switching load, this crown (17) is interrupted at a multitude of locations, by which means teeth (21) and intermediate spaces between the teeth (21) are formed. This crown contact head in the closed position of the contact arrangement bears on a crownless contact head. The contact spring (23) carrying the movable contact head is designed in a manner such that it may be subjected to torsion. The result of this is that the crown contact head (11) reliably contacts the crownless adjacent contact head (25) at the two small-surfaced contact locations, in each case with a high specific surface pressing.

Abstract: To provide a small-sized electromagnetic relay capable of reducing an internal resistance of a contact circuit as much as possible, and also capable of carrying a high current to the relay. The electromagnetic relay includes an electromagnetic driving block composed by a coil, an iron core, a yoke, and an armature; fixed contacts each provided on one end of each of a pair of terminals fixed to a base; and a movable spring having movable contacts provided at positions corresponding to the respective fixed contacts, the armature driving the movable spring depending on whether or not a current is carried to the coil, thereby opening or closing a contact circuit, wherein the movable spring has both ends supported by the base, the movable spring arranged in parallel to the terminals, and the movable contacts are provided on the movable spring.

Abstract: An electromagnetic relay is provided which is small in size and is capable of controlling two circuits of an ordinarily-open contact, which has a large current-carrying capacity and high interrupting capability, and which is excellent in resistance against shock and vibration. Movable contactors are held, through bow-shaped movable contactor springs, to two -shaped holding frames each being electrically separated and being mechanically connected via a card made of a highly heat-resistant resin in a card block. Thick-plate shaped movable contacts, which are attached to the movable contactors in a fixed manner, are electrically connected or disconnected to fixed contacts in a base block, in synchronization with operations of an armature of an electro-magnet block. In order to improve a current-carrying capability and interrupting capability, there are provided two pieces of ordinarily-open contacts which are connected in series to each other, and between which an interval is doubled, in each of two circuits.