719results about "Non-polarised relays" patented technology

An electromechanical relay includes an armature and an inner core at least partially surrounding at least a portion of the armature. The armature is slidably movable relative to the inner core. A coil at least partially surrounding at least a portion of the inner core. The relay also includes a stationary contact held in a ceramic header and a movable contact connected to the armature via a shaft. The movable contact is movable between an open position wherein the movable contact does not engage the stationary contact and a closed position wherein the movable contact engages the stationary contact. The relay also includes a housing having an open end and a chamber. The chamber contains the armature, the inner core, the coil, the movable contact, and at least a portion of the stationary contact. The housing forms a portion of a magnetic circuit of the relay. The ceramic header is circumferentially welded to the housing adjacent the open end such that the chamber of the housing is hermetically sealed.

The invention discloses a high voltage DC vacuum relay with high reliability and long service life, which is arranged inside a vacuum cavity body that is sealed and connected by meal and ceramic; a ceramic insulator is connected between a movable contact component and a push rod in a sliding way; the good vacuum performance and electric insulation performance of the ceramic insulator can be utilized to lead the movable contact and a fixed contact to main good electric insulation together with a magnetic circuit system formed by a magnetic guide yoke iron plate of the relay, an iron core and the like no matter in a state of connection or disconnection, so that current interruption capability of the relay can be guaranteed when DC high-voltage load is switched; a vacuum chamber body and allparts in side the vacuum chamber body formed by the high voltage DC vacuum relay have low enough saturated vapor pressure and are treated by high temperature baking exhaust, so that the vacuum degreein the vacuum chamber body can ensure the work demand of the relay on switching heavy current and the DC high-voltage load for a long time; furthermore, the relay also has the advantages of simple andcompact structure, small volume, light weight, strong shock resistance and impact resistance, simple technique process, low production cost and large batch production.

The invention discloses an electromagnetic relay which resists electric repulsion force. When a relay contact is closed and the electromagnetic relay works, the relay is loaded, and a coil is provided with a setting signal. The current direction of a second leading-out sheet is opposite to the current direction of a movable spring, thus producing a magnetic field through the interaction. The magnetic field enables the movable spring to produce electromagnetic force. The produced electromagnetic force is in the same direction as the pushing force produced by a pushing card, thus increasing the contact pressure of a contact which is enough to resist the destruction of the electric repulsion force. The invention completely eliminates the technical problem that the electric repulsion force causes the contact to return easily in prior art. The invention further has the advantages of large resultant force of the electromagnetic force and the pushing force, small contact pressure of the contact, small contact resistance, reliable and stable electrical contact of the contact, capability of resisting short-circuit current, preventing the functional relay from being damaged, large switching power of the contact, capability of working under large load for long term, compact conformation, shock resistance, high impact capability, high capability of carrying load, low price, high manufacturability. In addition, the switching frequency of the invention shall not be too high, and the invention is applicable for streamlined production in large quantity.

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.

A disclosed electromagnetic relay includes a fixed contact, a movable contact provided in a movable contact spring, an electric magnet causing the movable contact to contact the fixed contact by applying force via an arming unit, a magnet generating a magnetic field between the fixed contact and the movable contact, and yokes made of a magnetic material, wherein the yokes are arranged in parallel to interpose the fixed contact and the movable contact between the yokes and to apply the magnetic field generated by the magnet to an area where the fixed contact and the movable contact exist, and insulating portions are provided on inner surfaces of the yokes facing the fixed contact and the movable contact, respectively.

The starter for a motor vehicle comprises a starter head provided with a driver (12) and a pinion (1), an electric motor (M) provided with a shaft (101) able to drive a starter-head shaft (100), an electromagnetic contactor (2) extending parallel to the electric motor (M) above it and comprising a movable core (2d), a fork (13) mounted with articulation at its top end on the movable core (2b); the driver (12) comprises a groove for receiving the bottom end of the fork (13) delimited by two flanks (121, 122) whilst the starter head is locked in rotation by means of cooperation between the fork (13) and the driver (12) for its passage from its idle position to its position of meshing with the starting ring.

In an electromagnetic switch of a starter, a bobbin has two terminal holders on a flange. Each of the terminal holders defines a slot on its end surface and a terminal is press-fitted in the slot in an axial direction of the bobbin. An end of an excitation coil wound around the bobbin is pulled out the bobbin and connected to the terminal. A molded cover provides a through hole and is mounted on the terminal so that the terminal passes through the through hole. A sealing member is press-fitted on the terminal to air-tightly seal the through hole. A rod cover fitted on a rod supporting a movable contact has slits on its cylindrical part in the axial direction. The slits are closed before a distal end of the cylindrical part.

A hybrid DC contactor includes contacts that provide a first current path between a DC power source and a load, an electromagnetic coil to position the contacts, a semiconductor switch in parallel with contacts that, when turned on, provides a second parallel current path that diverts current away from the contacts when the main contacts are being opened in either direction. A controller is provided to terminate power to the electromagnetic coil to open the contacts, detect an arc voltage across the contacts as the contacts open, provide a gate signal to the semiconductor switch to pulse the switch on for a pre-determined period of time to route current to the semiconductor switch, measure a current through the contacts and, if current is present through the contacts, then provide another gate signal to the semiconductor switch to pulse the switch on again so as to route current thereto.

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.

An electromagnetic switch is provided which is equipped with a built-in electronic control circuit working to control energization of an exciting coil. The electronic control circuit is disposed within a chamber defined by a magnetic plate to be separate from a contact chamber. In other words, the electronic control circuit is disposed between the magnetic plate and the exciting coil, thereby avoiding the adhesion of conductive dusts, as arising from the wear of contacts, to the surface of the electronic control circuit. This results in decreases in electric insulation and short-circuit of the electronic control circuit and also eliminates the need for additional special parts to electrically insulate and shield the electronic control circuit, thus permitting the electromagnetic switch to be reduced in size and produced at a decreased const.

An actuator, in particular for valves, relays, or the like, is disclosed, which has an electromagnet (10) with a magnet coil (11), a magnet armature (12) that can be slid between two end positions, and a magnet yoke (13), and has an actuation tappet (14) driven by the magnet armature (12). In order to produce a bistable actuator with a low power consumption and a low heating of current-carrying components-particularly when long switching times in both switch positions are required, on the one hand, the electromagnet (10) is embodied so that its magnet armature (12) has a stable middle position that is disposed between its two end positions, which are determined by the two switch positions of the actuator, and that can be approached from both end positions by supplying current to the magnet coil (11), and on the other hand, a bistable mechanical locking mechanism (15) is provided, which acts on the magnet armature (12) or on the actuation tappet (14) and comes into play in the end positions of the magnet armature (12) (FIG. 1).

A MEMS switch assembly comprising a substrate and a resilient switching member is provided. The resilient switching member comprises a transverse torsion member having a flexible portion, and a leaf spring and cantilever that extend from the flexible portion of the torsion member. The switching assembly further comprises a first anchoring member mounting the torsion member to the stable structure, and a second anchoring member mounting the leaf spring to the stable structure. In this manner, the leaf spring has a flexible portion between the first and second anchors that can be alternately flexed in opposing directions to deflect the cantilever end in the respective opposing directions. The leaf spring can exhibit a first stable geometry (e.g., a convex geometry) when flexed in one of the opposite directions, and a second stable geometry (e.g., a concave geometry) when flexed in another of the opposite directions. Thus, the switch can be switched between two stable states using a momentary force and can maintain these two stable states without further expenditure of energy.

A relay (10), in particular for a starter for an internal combustion engine, is proposed. The relay (10) includes a relay coil (13) and a solenoid armature (22) which can be moved when full battery current flows to the relay coil (13). A contact member (37) can be actuated by the solenoid armature (22), whereby an operating lever (31) is situated on the contact member (37). It is provided that a coupling element (46) connects the operating lever (31) and the solenoid armature (22) with each other in a manner that allows them to slide with limits.

An electromagnetic switch for a starter comprises a current-supply terminal and a vibration absorber configured to absorb vibration imposed on the terminal. The terminal is provided so that one end of the terminal is tightly attached to the switch, and the other end is connected to a cable which supplies electric current to the switch. One end of the terminal is tightly attached to a bobbin wound by an excitation coil to which the current is supplied and the other end protrudes through a molded cover outward to be connected to the cable at a connection port formed in the molded cover. The vibration absorber is, for example, a bent portion of the terminal formed integrally with the terminal itself. One or more flexible members are attached to the terminal to support the terminal within the electromagnetic switch and to seal inner spaces between the terminal and the switch.

A relay is disclosed that includes a first opening and closing part including an openable and closeable first gap; a second opening and closing part including an openable and closeable 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 configured to cause the first opening and closing part and the second opening and closing part to simultaneously operate; and a permanent magnet configured to apply a magnetic field on the first gap of the first opening and closing part and the second gap of the second opening and closing part in the same direction.

A relay is disclosed that includes 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 configured to cause the first opening and closing part and the second opening and closing part to simultaneously operate; and a permanent magnet configured to apply a magnetic field on the first gap of the first opening and closing part and the second gap of the second opening and closing part in the same direction.

A starter control device includes an auxiliary switch for controlling an operation of a starter main switch, the auxiliary switch having a cap made from an insulating member. The starter control device also includes a control circuit part disposed on the cap, a terminal disposed on the cap, and a connection metal attachment for connecting the control circuit part and the terminal.

Method and apparatus for a mechanical latching of at least one pole of a relay selected from SPST, SPDT, DPDT, reversing DPDT, multi pole MPST and MPDT including the integration of one of a single and plurality of hybrid SPDT or DPDT switches with one of SPDT and DPDT mechanically latching relay using springy element to maintain the contacts between the poles and one of the relay contact and a structured contactors to connect the poles of the relay and the switch including PCB assembly, for operating electrical loads via the switch manual key including the introduction of a key-plunger combination into the latching relay and remotely by powering the relay coil by a power pulse, including a CPU program for providing any of the manual keys of each SPDT or DPDT connected in a traveler lines to the integrated switch-relay to switch on-off group of loads and all the loads of home automation network or grid via optical cable, RF, IR in line of sight and bus line.

An object of the invention is to provide a contact switching device that produces minimal hitting sound at the time of return. In the contact switching device, a movable iron core (42) provided at one end portion of a movable shaft (45) is attracted to a fixed iron core (38), based on excitation and degauss of an electromagnet portion (50), by which the movable shaft (45) reciprocates in a shaft center direction, and a movable contact (48a) of a movable contact piece (48) arranged at another end portion of the movable shaft (45) contacts and departs from a fixed contact (33a). Particularly, at the time of return, an annular flange portion (45a) provided at an intermediate portion of the movable shaft (45) abuts on an annular receiving portion (35c) of the magnet holder (35) to thereby restrict a position of the movable iron core (42).

A core for an electromagnetic device includes a yoke and at least two legs extending from the yoke. The yoke and at least two legs are formed of steel plates laminated together. Each of the legs has a free end face forming a magnetic pole face, a first groove extending from the magnetic pole face and a second magnetic groove on a side face thereof. Also, the core includes a shading coil having a metal ring shape, and including a first linear section and a second linear section extending in parallel with each other. A part of the first linear section is accommodated in the first groove, and a part of the second linear section is accommodated in the second groove and locked therein. A bottom face of the second groove forms an angle with respect to a bottom face of the first groove.

An electromagnetic relay has three fixed contact terminal assemblies arrayed in a row at regular intervals, and a movable contact spring assembly having three movable contacts. An armature is caused to swing by turning on and off an exciting current to a coil assembly so that normally-open contact portions are closed and opened. A movable spring of the movable contact spring assembly is branched into three portions on one end side thereof and a substantially U-shaped slit is formed in each of the branched portions so that spring flexible portions and a current-carrying path portion are separately formed in each branched portion. A current-carrying plate is joined to the three current-carrying path portions so that the three movable contacts are electrically connected together.

The invention discloses a magnetic latching relay capable of resisting a short-circuit current. The magnetic latching relay comprises a magnetic circuit system, a contact system and a push mechanism, wherein a movable spring part comprises a movable contact, a movable spring plate and a movable spring lead-out plate; the movable spring lead-out plate is arranged at one side, departing from the moving contact, in the thickness direction of the movable spring plate; a fixed spring part comprises a fixed contact, a fixed spring plate and a fixed spring lead-out plate; the fixed spring lead-out plate also is arranged at one side, departing from the moving contact, in the thickness direction of the movable spring plate, so that the direction of current flowing through the movable spring lead-out plate is opposite to that of the current flowing through the movable spring plate. According to the magnetic latching relay, the electro-dynamic repulsion force generated by single short-circuit current between the movable contact and the fixed contact can be resisted by electromagnetic repulsion force generated by formed double short-circuit current on the movable spring plate on the basis of not increasing the overall dimension of a product or not increasing the power consumption of a coil control part, so that the closing pressure of the movable contact and the fixed contact is greatly improved, the short-circuit current is resisted and the requirements of the product on simple, compact and small structures are met.

A starter solenoid switch according to the present invention includes a first and a second set of contacts that are disposed between a battery and a starter motor in parallel with each other. The first and the second sets of contacts are so configured that the second set of contacts is closed to supply a lighter electric current to the starter motor before the first set of contacts is closed to supply a heavier electric current to the same. The second set of contacts is composed of a second fixed contact and a second movable contact, one of which includes a low-resistance portion at one end thereof and a high-resistance portion that contains more carbon than the low-resistance portion. The low-resistance and the high-resistance portions are serially disposed along a conducting path of electric current from the battery to the starter motor, thereby ensuring reliability of the starter solenoid switch.

An electromagnetic switch is provided which is equipped with a built-in electronic control circuit working to control energization of an exciting coil. The electronic control circuit is disposed within a chamber defined by a magnetic plate to be separate from a contact chamber. In other words, the electronic control circuit is disposed between the magnetic plate and the exciting coil, thereby avoiding the adhesion of conductive dusts, as arising from the wear of contacts, to the surface of the electronic control circuit. This results in decreases in electric insulation and short-circuit of the electronic control circuit and also eliminates the need for additional special parts to electrically insulate and shield the electronic control circuit, thus permitting the electromagnetic switch to be reduced in size and produced at a decreased const.

A permanent-magnet ground fault circuit interrupter plug with self-diagnosing function having an enclosure and a permanent-magnet mechanism encased in the enclosure. In one embodiment, the permanent-magnet mechanism includes a frame assembly having a crossbeam, a frame pressure post and a core connecting post positioned at each side of the crossbeam, a core attached to the core connecting post and positioned inside a coil assembly, a spring sleeved on the core connecting post and positioned therebetween an inner cam of the coil assembly and the crossbeam of the frame assembly; a circuit-breaking coil and a circuit-connecting coil wound on the coil assembly, respectively, a permanently magnet positioned proximately to the core, a pair of movable contact arms with each having one movable contact positioned at each lateral side of the frame pressure post for communicating with the frame assembly, a pair of fixed contacts positioned above the corresponding movable contacts, and a metal oxide varistor with one end electrically connected to a first terminal of a power source directly and the other end electrically connected to a second terminal of the power source from a load side across a circuit breaker.

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.

A bistable electromagnetic microdriver is structurally characterized by that a pair of permanent-magnet bases are symmetrically arranged on a soft-magnetic liner on base, a soft-magnetic torsional beams is arranged via soft-magnetic transition layer on said two bases to form a bridge structure, and a pair of soft-magnetic cantilevers are horizontally and symmetrically extended from the middle part of torsional beam to make their ends above the planar windings containing iron core on said liner. An air gap is between the end of cantilever and planar winding.

An electromagnetic relay includes an electromagnet device, an armature and a fixed terminal. By coil current through a coil, the electromagnet device generates first magnetic flux that forces the armature and the electromagnet device together or apart in a first end in a first direction of the armature. The armature is connected with a movable contact at a second end of the first direction and forces the movable contact and a fixed contact together or apart according to coil current. The fixed terminal is electrically connected with the fixed contact, and provided around the armature so as to cross the armature as seen from a second direction perpendicular to the first direction with the armature closing the fixed and movable contacts. Electric current through the fixed terminal generates a second magnetic flux in the armature, a direction of which is opposite to that of the first magnetic flux.

The invention relates to an electric excitation permanent magnet switch, a reluctance motor for the electric excitation permanent magnet switch and an electric excitation method. In the electric excitation permanent magnet switch, two magnetic poles of a permanent magnet are respectively connected with both ends of an iron core on which magnet exciting coils are wound by two soft magnets; and salient poles are arranged on the soft magnets. In the reluctance motor, the switch is used as basic components of a stator and a rotor, and the two magnetic salient poles of each component are arranged in an axial direction; the salient poles of the stator component and the rotor component are arranged oppositely, and air gaps are reserved between the salient poles; and the magnet exciting coils of the stator component and the rotor component at the axial symmetrical position are connected in series or in parallel and then are used as a phase line respectively to be connected to an excitation control power supply. The invention also provides a combination motor formed by connecting motor monomers by using a shaft in a rotary and dislocation mode and a method for the simultaneous diphase electric excitation of the stator component. The switch and the motor save energy, and have low magnetic loss and high magnetic efficiency; and the combination motor with the diphase electric excitation realizes the subdivision of stepper angles, and improves running stability, control accuracy and output power.