By Reciprocating Armature Patents (Class 335/131)
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Patent number: 12205786Abstract: A direct current relay is disclosed comprising a pin member and a support member. The support member allows a housing for receiving a movable contactor and an upper yoke for attenuating electromagnetic repulsive power to be coupled to each other. The pin member passes through and is coupled to the support member and the movable contactor to prevent the movable contactor from being unintendedly separated. The support member passes through and is coupled to the housing and the upper yoke, and then extends toward the radial outside by receiving applied pressure which faces the radial outside. The pin member passes through and is coupled to the support member, and then extends toward the radial outside when the pressure is released. Therefore, a separate fastening member for coupling the pin member and the support member to the housing, the upper yoke, the movable contactor, and the like is not required.Type: GrantFiled: August 20, 2019Date of Patent: January 21, 2025Assignee: LS ELECTRIC CO., LTD.Inventor: Jungwoo Yoo
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Patent number: 12169021Abstract: An actuator to set a park lock of an automatic transmission of a motor vehicle has a drive (2) driving a drive shaft (1), a first actuating element (3) operatively connected to the drive shaft (1) for actuating a switching device, a spring element (5), which is supported on one side on a housing component (16) of the actuator, and on the other side on a second actuating element (17) designed to load the spring element (5). The actuator also has an electromagnetic retaining device (32) with an electromagnet (50) which interacts magnetically with a magnetic armature (52) comprising a ferromagnetic material component to retain the spring element (5) which is under loading, building up a spring return force. The magnetic armature (52) is mounted tiltably and/or pivotably on a pivot component (55) of the retaining device (32).Type: GrantFiled: August 25, 2021Date of Patent: December 17, 2024Assignee: Küster Holding GmbHInventors: Oliver Keller, Tobias Eichenauer, Kevin Hartbrod
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Patent number: 12112908Abstract: An electromagnetic relay includes a housing, a first fixed terminal, a movable contact piece, a drive device, and a first heat dissipation member. The first fixed terminal protrudes from inside the housing to outside the housing. The movable contact piece is disposed in the housing. The movable contact piece faces the first fixed terminal. The drive device moves the movable contact piece in a contact direction and an opening direction. The first heat dissipation member is disposed outside the housing. The first heat dissipation member is provided separately from the first fixed terminal. The first heat dissipation member is connected to the first fixed terminal.Type: GrantFiled: September 26, 2022Date of Patent: October 8, 2024Assignee: OMRON CORPORATIONInventors: Kei Takahashi, Yuichiro Teshima, Tomohiro Yamakita, Koichiro Matsushima
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Patent number: 12094673Abstract: A relay is disclosed. In an embodiment a relay includes a first switching contact having a first main contact, a second main contact and a first movable contact; a second switching contact having a third main contact, a fourth main contact and a second movable contact, wherein the second switching contact is electrically isolated from the first switching contact; and an actuator configured to move both the first and second movable contacts from a first switching state into a second switching state by moving a drive element of the actuator from a first position into a second position.Type: GrantFiled: December 4, 2018Date of Patent: September 17, 2024Assignee: TDK Electronics AGInventors: Robert Hoffmann, Jonas Weinhardt
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Patent number: 12080498Abstract: The disclosure relates to a relay, a battery distribution box and a battery pack. The relay includes a relay body and a buffer assembly. The relay body includes a housing and a stationary contact, a movable contact and a coil assembly located inside the housing. The coil assembly is abler to drive the movable contact to move toward or away from the stationary contact to make the movable contact to contact or disconnect from the stationary contact. The housing is fixed through the base, the buffer assembly is mounted on the base, and/or is mounted on the outside of the housing, and configured to buffer the force generated by the action of the movable contact.Type: GrantFiled: May 29, 2022Date of Patent: September 3, 2024Assignee: CALB Co., Ltd.Inventor: Linghang Huang
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Patent number: 11935716Abstract: A relay includes a fixed contact, a movable contact piece including a movable contact, a movable portion, a coil, a return spring, and a contact spring. The movable portion includes a drive shaft and a movable iron core. The drive shaft is fixed to the movable contact piece in a contact case and extends from an inside of the contact case to an outside of the contact case. The movable iron core is connected to the drive shaft outside the contact case. The return spring urges the movable portion in an open direction in which the movable contact is separated from the fixed contact. The contact spring urges the drive shaft in a contact direction in which the movable contact contacts the fixed contact. The contact spring is arranged outside the contact case.Type: GrantFiled: March 4, 2019Date of Patent: March 19, 2024Assignee: OMRON CORPORATIONInventors: Shingo Mori, Ryota Minowa, Yasuo Hayashida, Naoki Kawaguchi, Kohei Otsuka, Hiroyuki Iwasaka
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Patent number: 11783979Abstract: A solenoid includes a coil, a cylindrical sliding core, a columnar plunger, a bottomed cylindrical yoke including a cylindrical portion and a bottom portion that is connected to the cylindrical portion and faces a base end surface of the plunger, and the bottomed cylindrical yoke configured to accommodate the coil, the sliding core, and the plunger, a magnetic attraction core arranged to face a distal end surface of the plunger, and a magnetic flux transfer member that transfers magnetic flux between the sliding core and the yoke. When the plunger is closest to the magnetic attraction core, a position of the base end surface of the plunger along an axial direction is the same as position of the end of the sliding core along the axial direction, or is closer to the bottom portion side of the sliding core along the axial direction than the end of the sliding core.Type: GrantFiled: March 31, 2021Date of Patent: October 10, 2023Assignee: DENSO CORPORATIONInventor: Yutaro Watari
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Patent number: 11784017Abstract: An electromagnetic relay includes a pair of fixed terminals including a fixed contact, a movable contact piece, a housing portion, and a magnet portion. The movable contact piece includes a movable contact disposed facing the fixed contact. The movable contact piece is movable in a first direction in which the movable contact contacts the fixed contact and a second direction in which the movable contact separates from the fixed contact. The housing portion includes a housing space housing the fixed contact and movable contact piece. The magnet portion includes a pair of magnets disposed around the housing portion so as to face each other in a longitudinal direction of the movable contact piece and extending in the second direction beyond the housing space. The magnet portion generates a magnetic flux flowing in a direction parallel to the longitudinal direction between the fixed contact and the movable contact.Type: GrantFiled: October 16, 2019Date of Patent: October 10, 2023Assignee: OMRON CORPORATIONInventors: Naoki Kawaguchi, Ryota Minowa, Yasuo Hayashida, Shingo Mori, Kohei Otsuka, Hiroyuki Iwasaka
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Patent number: 11699864Abstract: A relay includes a housing, a fixed terminal, a screw receiving member, and at least one female screw member. The fixed terminal has a plate shape. The fixed terminal includes a fastening portion having at least one screw insertion hole. The fastening portion is exposed from the housing to an outside and is screwed to an external terminal. The screw receiving member overlaps with the fastening portion in a penetrating direction of the at least one screw insertion hole and is provided in proximity to the fastening portion. The at least one female screw member is provided integrally with or separately from the screw receiving member and is prevented from rotating by the screw receiving member.Type: GrantFiled: September 4, 2020Date of Patent: July 11, 2023Assignee: OMRON CORPORATIONInventors: Hiroyuki Harimochi, Ryota Minowa, Naoki Kawaguchi, Shinichi Ogawa, Kohei Otsuka, Hiroyuki Iwasaka, Kazuhiro Tsutsui
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Patent number: 11495426Abstract: An electromagnetic switch for a starting device of an internal combustion engine may include a coil carrier, a coil winding, and a piston. The coil carrier may have a carrier wall which encloses a cavity. The coil winding may have a coil wire wound on a side of the carrier wall facing away from the cavity which provides a magnetic field within the cavity. The piston may be axially adjustable in the cavity. The piston may be disposed in a passive position and may be adjusted axially in a direction of a core. In the passive position, the piston and the core may define an axial gap therebetween in the cavity. The coil wire may have a first winding section and a second winding section wound in opposing directions. At least one winding of the second winding section may axially overlap the axial gap.Type: GrantFiled: August 26, 2019Date of Patent: November 8, 2022Assignee: Mahle International GmbHInventor: Dejan Manfreda
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Patent number: 11450496Abstract: A relay includes a fixed terminal, a movable contact piece, a holder, a drive shaft, a contact case, a magnetic field generation member, and an inner member. The drive shaft is connected to the holder on a side close to the first end of the drive shaft. The magnetic field generation member is arranged around the contact case and is configured to generate a magnetic field in which an arc generated between the fixed contact and the movable contact extends in a lateral direction of the movable contact piece. The inner member includes a rotation preventing portion for restricting rotation of the holder around the drive shaft. The rotation preventing portion is arranged so as to contact the holder at a position closer to a second end of the drive shaft than the movable contact piece and closer to the drive shaft than the movable contact.Type: GrantFiled: September 4, 2020Date of Patent: September 20, 2022Assignee: OMRON CORPORATIONInventors: Hiroyuki Harimochi, Ryota Minowa, Naoki Kawaguchi, Shinichi Ogawa, Kohei Otsuka, Hiroyuki Iwasaka, Kazuhiro Tsutsui
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Patent number: 11421797Abstract: An actuator for a hydraulic stroke or pressure control valve for a motor vehicle, the actuator including a magnetisable actuator housing that envelops a magnet coil; a pole group arranged in a receiving opening of the actuator housing, wherein the pole group includes a pole core and a pole tube, wherein an axially movable armature is arranged in an inner cavity of the pole group, wherein the armature is configured to axially move a piston of the hydraulic valve by a pin that is supported axially movable in the pole group, wherein the actuator is configured to perform an anti-stick function and a contact damping function, wherein the pin directly contacts a first armature face of the armature that is oriented towards the pin, and wherein the pin is configured axially movable relative to the armature.Type: GrantFiled: July 19, 2020Date of Patent: August 23, 2022Assignee: ECO Holding 1 GmbHInventors: Thomas Jacob, Johannes Krebs, Diana Neufeld
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Patent number: 11417485Abstract: The present disclosure relates to a direct current (DC) relay having an auxiliary contact, and more particularly, to a DC relay having an auxiliary contact to have a monitoring function regarding a state of the DC relay. The DC relay having an auxiliary contact includes a housing, main contacts installed at a portion of the housing, and an auxiliary contact installed at another portion of the housing, wherein a partition is installed in a longitudinal direction inside the housing to provide a first accommodating part and a second accommodating part, the main contacts are installed in the first accommodating part, and the auxiliary contact is installed in the second accommodating part.Type: GrantFiled: January 15, 2019Date of Patent: August 16, 2022Inventor: Jungwoo Yoo
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Patent number: 11361925Abstract: A relay for assembling in terminal blocks includes an electromagnetic drive arrangement including an armature, an armature bearing spring, and a yoke. The armature is at least partially spaced from the yoke, is movably mounted, and is reduces the distance between the yoke and the armature under an effect of an electromagnetic force. The armature bearing spring applies a spring force counteracting the electromagnetic force. The yoke interacts electromagnetically with the armature to apply the electromagnetic force. A contact spring has a first contact surface and a contact arm, and the contact arm is spaced from the first contact surface and comes into contact with the first contact surface via a pressure force acting to establish an electrical connection between the first contact surface and the contact arm. An insulating element electrically isolates the armature from the contact arm and actuates the contact arm to produce the pressure force.Type: GrantFiled: April 10, 2019Date of Patent: June 14, 2022Assignee: Phoenix Contact GmbH & Co. KGInventor: Ralf Hoffmann
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Patent number: 11139133Abstract: A first conductive member is fixed to a first fixed terminal having a longitudinal direction, and a second conductive member is fixed to a second fixed terminal having a longitudinal direction. The first fixed terminal and the second fixed terminal are fixed to a partition member. A first extension portion of the first conductive member includes a first opposed portion opposed to at least one of the first fixed terminal at a first fixed contact side of the partition member. The first opposed portion extends in the longitudinal direction of the first fixed terminal.Type: GrantFiled: January 11, 2018Date of Patent: October 5, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Ryosuke Ozaki, Shinya Kimoto, Kazuhiro Kodama, Seiya Sakaguchi, Yasutaka Hieda, Masahiro Ito, Hideki Watanabe
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Patent number: 11120960Abstract: A modular switching contactor arrangement for use in a safety-oriented application, has two switching contactor modules that can be arranged in succession by means of a coupling module, the switching contactor modules and the coupling module merely having to be joined together by a user, without any external wiring, so as to be mechanically and electrically coupled to one another. In the mounted state, the switching contactor arrangement has a reduced construction width that is substantially delimited by the narrow faces of the switching contactor modules. In particular, the construction width can be 22.5 mm.Type: GrantFiled: December 21, 2017Date of Patent: September 14, 2021Assignee: Phoenix Contact GmbH & Co. KGInventor: Ralf Hoffmann
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Patent number: 10980996Abstract: Magnetic orientation-independent magnetically actuated switches may be made by producing an outer cylinder and an actuator cylinder from ferromagnetic sheets and non-ferromagnetic sheets in alternating order. A first ferromagnetic body is attached to an end of the outer cylinder. The actuator cylinder is positioned within a first bore of the outer cylinder, the actuator pin is positioned within a second bore of the actuator cylinder and a third bore of the first ferromagnetic body with a portion of the actuator pin extending beyond the third bore of the first ferromagnetic body. A second ferromagnetic body is attached to the portion of the actuator pin, thus forming the magnetic orientation-independent magnetically operated switch.Type: GrantFiled: September 22, 2018Date of Patent: April 20, 2021Assignee: MEDTRONIC, INC.Inventors: Richard T. Stone, Spencer Fodness-Bondhus, Walter Doell, John D. Welter, Guillaume Schmit, Niklaus Schneeberger
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Patent number: 10892125Abstract: An electromagnetic relay is provided with a housing; a first fixed contact terminal and a second fixed contact terminal secured to the housing; a movable contact accommodated in a chamber in the housing; a movable shaft with one end connected to the movable contact, and a solenoid configured to drive the movable shaft in a contact movement direction. The solenoid includes: a spool with a through-hole in the drum; a fixed armature secured in the through-hole; and a movable armature arranged between the fixed armature in the through-hole and an insulating wall; the movable armature is configured to travel with the movable shaft between an operation position and a return position. The housing includes an alignment part that determines the return position of the movable armature.Type: GrantFiled: September 14, 2018Date of Patent: January 12, 2021Assignee: Omron CorporationInventors: Ryota Minowa, Shingo Mori
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Patent number: 10727662Abstract: A dropout recloser is capable of in accordance with its operating programming after a predetermined number of fault interrupting operations, e.g., 1, 2, 3 or more but typically 3, to drop out of a cutout and hang freely in a hinge contact of the cutout providing sectionalization with an observable visible gap. The recloser includes fault interrupting and reclosing components, a drop out mechanism and a controller. The drop out mechanism may include a bi-stable actuator to affect fault interrupting operation and dropout operation. The device may include motion limiting structures. The recloser may have a number of operating modes or sequences.Type: GrantFiled: May 7, 2013Date of Patent: July 28, 2020Assignee: S&C Electric CompanyInventors: Richard G. Smith, Yujian Zhou, Jorge Montante, Montengro Alejandro, Michael Ross
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Patent number: 10658141Abstract: An electromagnetic relay including: an electromagnet; a movable spring having a movable contact; a first terminal to which one end of the movable spring is connected; a second terminal having a fixed contact opposite to the movable contact; an actuator that rotates by excitation of the electromagnet, rotates the movable spring, and causes the movable contact to come in contact with the fixed contact or to separate from the fixed contact; a nonmagnetic card to be attached to the actuator; a plurality of magnetic members that sandwich the movable contact and the fixed contact, and apply a magnetic flux to the movable contact and the fixed contact to extend an arc; and a permanent magnet attached between the magnetic members.Type: GrantFiled: September 8, 2017Date of Patent: May 19, 2020Assignee: FUJITSU COMPONENT LIMITEDInventors: Takuji Murakoshi, Kazuo Kubono, Daiei Iwamoto
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Patent number: 10453628Abstract: The present invention discloses an opposite arc isolation device of a high voltage direct current relay, including a movable contact assembly and a fixed contact assembly, wherein the movable contact assembly includes a movable spring plate and a left movable contact and a right movable contact fixed at left and right ends of the movable spring plate; the fixed contact assembly includes a left fixed contact corresponding to the left movable contact and a right fixed contact corresponding to the right movable contact; an arc isolation member made of insulating material is provided between the left movable contact and the right fixed contact; the front-to-rear dimension L of the arc isolation member is greater than the front-to-rear width M of a joint surface of the movable contacts with the fixed contacts; and, the arc isolation member has a height H that enables the isolation of opposite arcs between the two sets of movable and fixed contacts.Type: GrantFiled: July 7, 2016Date of Patent: October 22, 2019Assignee: ZHEJIANG INNUOVO NEW ENERGY TECHNOLOGY CO., LTD.Inventors: Xiaobin Guo, Haiyan Huang, Dejin Du, Yuanfeng Li
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Patent number: 10262825Abstract: The present invention discloses a moving iron core guide mechanism for an HVDC relay, comprising a pushrod, an upper section of the pushrod being located above a yoke plate and fixed with a moving contact assembly, a middle section and a lower section of the pushrod passing through the yoke plate downward, the middle section of the pushrod being fixed with a moving iron core; the moving iron core is located inside a magnetic conductive cylinder of a U-shaped yoke; a lower bushing is fixed inside the magnetic conductive cylinder, and the lower bushing is located below the moving iron core; a lower guide hole running from top to bottom is formed on the lower bushing; and the lower section of the pushrod is always fitted inside the lower guide hole of the lower bushing, and the pushrod is in smooth contact with an inner wall of the lower guide hole.Type: GrantFiled: July 7, 2016Date of Patent: April 16, 2019Assignee: ZHEJIANG INNUOVO NEW ENERGY TECHNOLOGY CO., LTD.Inventors: Wenrong Song, Rongai Yu, Haiyan Huang, Xiaobin Guo, Dejin Du, Peng Su
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Patent number: 10199191Abstract: The present invention refers to a cover (17) of a contactor (1) of a starter for motor vehicle, comprising —a plastic portion (18) delimiting a contact chamber (15) volume, —two plugs (43, 45) in an electrical conductor material which cross the plastic portion, each of the two plugs (43, 45) having an end in the contact chamber (15), —a seal (37) which is arranged on the plastic portion (18) to isolate the contact chamber (15) when the cover (17) is assembled with a coil casing (5) of the contactor (1), the seal (37) being assembled in a fixed manner to the cover (17).Type: GrantFiled: July 3, 2015Date of Patent: February 5, 2019Assignee: Valeo Equipements Electriques MoteurInventor: Sébastian Balzam
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Patent number: 10153117Abstract: The invention relates to an electromagnetic contactor including: —first and second magnetic cores, the second core being mobile relative to the first core; —a control rod mobile between an inoperative position and a supply position, the control rod comprising a shoulder, in inoperative position: —the shoulder comprises one surface in contact with the first magnetic core, —the first magnetic core and the control rod separating a first chamber extending between the first and second magnetic cores and a second chamber in which the contact plate is located, and —at least one opening made between the first chamber and the second chamber allowing the transfer of air from the first chamber to the second chamber when the second magnetic core moves from the inoperative position to the magnetized position.Type: GrantFiled: July 30, 2015Date of Patent: December 11, 2018Assignee: Valeo Equipements Electriques MoteurInventors: Romain Guignot, Christophe Patroix
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Patent number: 10115551Abstract: A protective circuit breaker includes a switch housing; connection pieces; a switching contact arranged in the switch housing and connected to the connection pieces; a converter housing including a first passage opening and inserted into a recess in the switch housing and through which the second connection piece runs; a converter coil being arranged around the passage opening/the second connection piece; a plate-like converter cover including a second passage opening through which the second connection piece extends. In order to permit a simple voltage tap, in an embodiment the converter cover has arranged on it: a first contact bearing against the second connection piece at the converter cover, a second contact electrically connected to the first connection piece, and a third contact connected to the first or a second electronics system. An electrical connection is included, via which the third contact is selectively connectable to the first or second contact.Type: GrantFiled: June 28, 2016Date of Patent: October 30, 2018Assignee: SIEMENS AKTIENGESELLSCHAFTInventor: Alexander Kupsch
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Patent number: 10102993Abstract: A contact device (15) of a starter contactor (1) comprising:—a contact rod (17) made of an electrically insulating material,—a contact strip (19) made of an electrically conducting material comprising a hole (19a) in which is mounted the contact rod (17),—a squashing spring (25),—a restoring spring (27), the contact device (15) also comprises a closure clip (33) of radial width greater than or equal to the diameter of the squashing spring (25), a radial notch (33a) being made in the closure clip (33), the radial notch (33a) receiving a portion of the contact rod (17), the squashing spring (25) being mounted compressed between the closure clip (33) and the contact strip (19) which is in abutment on a retaining collar (17a) of the contact rod (17).Type: GrantFiled: April 22, 2015Date of Patent: October 16, 2018Assignee: Valeo Equipements Electriques MoteurInventor: Romain Guignot
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Patent number: 10032585Abstract: There is provided an electromagnetic contactor which can easily and inexpensively change the DC operation type to the AC operation type. The electromagnetic contactor includes an electromagnet that opens and closes a contact by using DC excitation of a coil, a lower case that accommodates the electromagnet, external coil terminals that are disposed in the lower case beside the electromagnet, and a substrate that is accommodated in the lower case, and that has a rectifier circuit whose input side is connected to the external coil terminals and whose output side is connected to the coil so as to output a DC after converting an input AC to the DC. An inner surface of the lower case has a groove between the electromagnet and the external coil terminals. The substrate is held by being inserted into the groove.Type: GrantFiled: March 6, 2017Date of Patent: July 24, 2018Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Kouetsu Takaya, Yuki Tashima, Hideo Adachi, Yasuhiro Naka, Koujun Konishi
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Patent number: 9928982Abstract: A switching assembly includes an operating assembly and a fixed contact assembly including a first fixed contact, a second fixed contact, a third fixed contact, a fourth fixed contact, and a number of terminals. The number of terminals includes a first terminal, a second terminal, and a third terminal. The switching assembly also includes a movable contact assembly that includes a first movable contact and a second movable contact. The first movable contact is movable between a first position and a second position. The second movable contact is movable between a first position and a second position. The operating assembly is coupled to the movable contact assembly and moves the first and second movable contact assemblies between the first and second positions. The switching assembly also includes a shunt assembly including a number of shunts. The shunt assembly is configured in one of a series configuration or a parallel configuration.Type: GrantFiled: February 13, 2015Date of Patent: March 27, 2018Assignee: LABINAL, LLCInventors: Archit Agarwal, Christopher Kenneth Wyatt, Patrick Wellington Mills
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Patent number: 9887056Abstract: The present invention relates to a relay for an electric vehicle and a method of manufacturing the same, and more particularly, a relay for an electric vehicle where a permanent magnet is integrally formed with a housing formed of a ceramic chamber, and a method of manufacturing the same. The relay, capable of rapidly executing current interruption includes: a fixed contact; a movable contact formed to contact or to be separated from the fixed contact; a shaft connected to the movable contact, and configured to move the movable contact; a housing configured to accommodate therein the fixed contact and the movable contact; an actuator configured to drive the shaft; and a permanent magnet integrally formed with the housing, and configured to extend an arc generated between the fixed contact and the movable contact. The permanent magnet includes an alnico-based material or a neodymium-based material.Type: GrantFiled: May 3, 2016Date of Patent: February 6, 2018Assignee: LSIS CO., LTD.Inventor: Kwangsik Lee
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Patent number: 9721741Abstract: An electromagnetic contactor capable of coupling either one of an alternating current (AC) electromagnet or a direct current (DC) electromagnet with an identical contact support is provided. The electromagnetic contactor includes an electromagnet including either one of the AC electromagnet (12AC) including a movable core or the DC electromagnet (12DC) including an armature, and a contact support (36) configured to hold plural movable contacts in alignment to be coupled with and driven by the electromagnet. The contact support includes a coupling portion (40) including a movable core contact portion (41), coupling spring edge accommodation portions (46), and armature contact portions (51) arranged on opposite sides with respect to the movable core contact portion of the coupling spring edge accommodation portion. The AC electromagnet (12AC) includes an AC electromagnet coupling spring (56) and the DC electromagnet (12DC) includes a DC electromagnet coupling spring (161).Type: GrantFiled: March 10, 2016Date of Patent: August 1, 2017Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Shota Shiinoki, Masaaki Watanabe, Hideki Daijima, Takashi Tsutsumi
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Patent number: 9704682Abstract: An operation indicating lamp-equipped electromagnetic relay has an excitation coil, a contract member that has electromagnetic interaction with the excitation coil to open and close a circuit, a housing in which the excitation coil and the contact member are disposed, and having a display surface arranged in a top surface thereof, a light source having an optical axis that is oriented toward a direction other than the display surface in order to display an operating situation of the electromagnetic relay, and being disposed in the housing so as to emit light according to a situation of power supplied to the excitation coil, a reflecting member disposed in the housing so as to reflect the light emitted from the light source toward the display surface, and a diffusion structure that diffuses the light reflected by the reflecting member formed in the display surface.Type: GrantFiled: June 12, 2015Date of Patent: July 11, 2017Assignee: OMRON CorporationInventors: Yuji Hirose, Masayuki Shinohara, Hiroyuki Miyamoto, Yasuhiro Tanoue
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Patent number: 9673008Abstract: An electromagnetic switch includes a contact housing case; a plurality of contact mechanisms each having a fixed contact and a movable contact contacting to and separating from the fixed contact, and disposed in parallel inside the contact housing case; a movable contact holding portion holding the movable contacts of the plurality of contact mechanisms; and an electromagnet unit having a movable plunger moving the movable contact holding portion.Type: GrantFiled: October 3, 2014Date of Patent: June 6, 2017Assignees: FUJI ELECTRIC CO., LTD., FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Hiroyuki Tachikawa, Masaru Isozaki, Osamu Kashimura, Kouetsu Takaya
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Patent number: 9378906Abstract: An electromagnetic contactor manufacturing method includes a step of forming an arc extinguishing chamber connection portion by simultaneously brazing a fixed terminal and a pipe penetrating and fixed to a tub-shaped arc extinguishing chamber, and a tube portion of a first connection member in communication with an open end portion of the arc extinguishing chamber; a step of forming a cap connection portion having a flange portion extending outward in a radial direction from an open end of a bottomed tubular cap; and a step of disposing a flange portion of the first connection member and a flange portion of a second connection member in close contact with a base plate in which an aperture hole is formed, and welding each of the flange portions to the base plate so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole.Type: GrantFiled: December 19, 2013Date of Patent: June 28, 2016Assignees: FUJI ELECTRIC CO., LTD., FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Seiji Imamura, Kouichi Okamoto, Taku Ogawa, Yuichi Yamamoto, Kouetsu Takaya
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Patent number: 9240289Abstract: An object of the present invention is to provide a contact switching device in which a short circuit contingent to flow-out of scattered objects caused by arc is eliminated, so that life durability is increased. For this, there is provided a contact switching device in which a movable iron core provided at one end portion of a movable shaft is attracted to a fixed iron core, based on excitation and degauss of an electromagnet portion, by which the movable shaft reciprocates in a shaft center direction, and movable contacts of a movable contact piece arranged at another end portion of the movable shaft contact and depart from fixed contacts. Particularly, contact surfaces between the fixed contacts and the movable contacts are arranged inside a box-shaped insulating member, and an opening portion of the insulating member is closed by a lid body having at least one extending portion in a direction of an arc generated between the fixed contacts and the movable contacts.Type: GrantFiled: March 14, 2011Date of Patent: January 19, 2016Assignee: OMRON CorporationInventors: Keisuke Yano, Ryuichi Hashimoto, Yasuo Hayashida, Shingo Mori
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Patent number: 9240288Abstract: An object of the present invention is to provide a contact switching device that has small hitting sound during operation and is excellent in impact resistance. For this, there is a contact switching device in which a movable iron core (142) provided at one end portion of a movable shaft is attracted to a fixed iron core, based on excitation and degauss of an electromagnet portion, by which the movable shaft reciprocates in a shaft center direction, and a movable contact of a movable contact piece arranged at another end portion of the movable shaft contacts and departs from a fixed contact. Particularly, the movable iron core (142) has a cylindrical outer circumferential portion (142a) and an annular attracting and sticking portion (142b), and a ratio between an inner diameter and an outer diameter of the cylindrical outer circumferential portion (142a) is 77% or less.Type: GrantFiled: March 14, 2011Date of Patent: January 19, 2016Assignee: OMRON CorporationInventors: Keisuke Yano, Ryuichi Hashimoto, Yasuo Hayashida, Shingo Mori
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Patent number: 9070525Abstract: An electromagnetic switch for a starter. The electromagnetic switch includes a cylindrical slidable member that is separate from a plunger, loosely encompasses an outer circumferential periphery of a plunger rod, and is axially movable integrally with the plunger. The slidable member is at least partially axially inserted into an inner circumferential periphery of a cylindrical bore. The slidable member has a sliding surface such that, when the solenoid is in its inactive state, the sliding surface is entirely circumferentially in sliding contact with the inner circumferential periphery of the cylindrical bore, and has a vent groove axially extending on the outer circumferential periphery of the slidable member such that, when the solenoid is in its active state, a plunger compartment and the contact compartment are in fluid communication with each other via the vent groove.Type: GrantFiled: December 19, 2013Date of Patent: June 30, 2015Assignee: DENSO CORPORATIONInventor: Takashi Hirabayashi
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Patent number: 9030280Abstract: An electromagnetically operated device includes: a moving member of the electromagnetically operated device; a drive coil that is energized to generate magnetic flux for driving the moving member; a permanent magnet provided between a stationary member and the moving member for holding the moving member; and a holding force adjusting member for adjusting the holding force applied to the moving member by the permanent magnet, wherein the holding force adjusting member is placed at a position that will not be included in the main magnetic path of the magnetic flux caused by the drive coil so as to be removable.Type: GrantFiled: September 10, 2012Date of Patent: May 12, 2015Assignee: Mitsubishi Electric CorporationInventors: Kazuki Takahashi, Mitsuru Tsukima, Tomoko Tanabe, Taehyun Kim, Toru Kimura
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Patent number: 9013253Abstract: A relay includes two stators each having a fixed contact, and a movable element having movable contacts. Each of the stators includes a stator proximity plate portion adjacent to the movable element, and the movable element includes a movable element proximity plate portion adjacent to the stators. A direction of current flowing in the stator proximity plate portions is set to be same as a direction of current flowing in the movable element proximity plate portion to generate an inter-plate attraction force for attracting the movable element proximity plate portion onto the stator proximity plate portions. The movable element proximity plate portion is biased by the inter-plate attraction force toward a direction for bringing the movable contacts into contact with the fixed contacts.Type: GrantFiled: September 25, 2013Date of Patent: April 21, 2015Assignee: Anden Co., Ltd.Inventor: Akikazu Uchida
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Patent number: 8994482Abstract: An electromagnetic contactor has an arc extinguishing chamber housing a contact mechanism having a pair of fixed contacts and a movable contact that contacts with the pair of fixed contacts. The arc extinguishing chamber has a plate-shaped fixed contact support insulating substrate including through holes to fix at least the pair of fixed contacts and formed with a metal foil on an outer peripheral circumferential edge of one surface by a metalizing process. The pair of fixed contacts and a metal cylindrical body are brazed and joined to the metal foils of the fixed contact support insulating substrate, and an insulating cylindrical body is disposed on an inner peripheral surface of the metal cylindrical body.Type: GrantFiled: May 9, 2012Date of Patent: March 31, 2015Assignees: Fuji Electric Co., Ltd., Fuji Electric FA Components & Systems Co., Ltd.Inventors: Shoji Yokoyama, Yuichi Yamamoto
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Patent number: 8975989Abstract: An object of the present invention is to provide a contact switching device having a smaller height dimension. For this, there is provided a contact switching device in which a movable iron core (142) provided at one end portion of a movable shaft (145) is attracted to a fixed iron core (138), based on excitation and degauss of an electromagnet portion, by which the movable shaft (145) reciprocates in a shaft center direction, and a movable contact (148a) of a movable contact piece (148) arranged at another end portion of the movable shaft (145) contacts and departs from a fixed contact (133a). Two coil springs (147a, 147b) different in length and diameter are put on the movable shaft (145), and one of the coil springs (147a) is arranged inside the other coil spring (147b).Type: GrantFiled: March 14, 2011Date of Patent: March 10, 2015Assignee: OMRON CorporationInventors: Keisuke Yano, Ryuichi Hashimoto, Yasuo Hayashida, Shingo Mori
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Patent number: 8970330Abstract: A contactor is disclosed. The contactor includes one or more phase units, a mechanical drive and an electronic control module. Each phase unit includes an independent insulating housing, and, inside the housing, a positive pole, a static conducting rod, a negative pole, a moving conducting rod and a counter-force elastic component. The electronic control module drives a transmission to move, the transmission drives the central shaft to rotate, the central shaft drives the engagement between the moving conducting rod and the static conducting rod, the central shaft passes through the insulating housings of the one or more phase units and drives each phase unit, so that the contactor can be formed by absolutely independent phase units and it is convenient to add a phase unit along the central shaft so as to add rated operational current.Type: GrantFiled: September 19, 2013Date of Patent: March 3, 2015Assignee: Kunshan Vic Electronics Co., Ltd.Inventors: Zhiming Wu, Yihan Xu, John Bin Zhan
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Patent number: 8952772Abstract: An electromagnetic contactor includes a base plate having an aperture hole; an arc extinguishing chamber formed by a fixed terminal support insulating substrate and a cylinder portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a flange portion. A cap connection portion is formed by the cap and a second connection member having a tube portion and a flange portion. The flange portion of the first connection member is attached to one surface of the base plate, and the flange portion of the second connection member is attached to the other surface of the base plate, so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate.Type: GrantFiled: December 19, 2013Date of Patent: February 10, 2015Assignees: Fuji Electric Co., Ltd., Fuji Electric FA Components & Systems Co., Ltd.Inventors: Seiji Imamura, Kouichi Okamoto, Taku Ogawa, Yuichi Yamamoto, Kouetsu Takaya
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Patent number: 8941453Abstract: 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).Type: GrantFiled: March 14, 2011Date of Patent: January 27, 2015Assignee: Omron CorporationInventors: Keisuke Yano, Ryuichi Hashimoto, Yasuo Hayashida, Shingo Mori
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Publication number: 20150022292Abstract: An electromagnetic switch includes a main contact housing portion housing a main contact mechanism having a pair of fixed contacts fixedly disposed maintaining a predetermined interval and a movable contact disposed to connect with and separate from the pair of fixed contacts in a contact housing case; an auxiliary contact housing portion housing at least two auxiliary contact mechanisms having fixed contacts and movable contacts disposed connecting to and separating from the fixed contacts; and an electromagnet unit having a movable plunger individually coupled to move the movable contact of the main contact mechanism and the movable contacts of the auxiliary contact mechanisms. The main contact housing portion, the auxiliary contact housing portion, and the electromagnet unit are disposed in series.Type: ApplicationFiled: October 7, 2014Publication date: January 22, 2015Inventors: Hiroyuki TACHIKAWA, Masaru ISOZAKI, Osamu KASHIMURA, Kouetsu TAKAYA
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Publication number: 20150022291Abstract: A contact device includes a pair of fixed contacts fixedly disposed inside an arc extinguishing chamber and maintaining a predetermined interval from each other; a movable contact disposed to contact to and separate from the pair of fixed contacts; and an arc root movement promotion portion formed on the movable contact to promote a movement of root of arc in a direction away from the fixed contacts. The root of arc is generated when the movable contacts are opened and separated from the pair of fixed contacts.Type: ApplicationFiled: October 3, 2014Publication date: January 22, 2015Inventors: Osamu KASHIMURA, Masaru ISOZAKI, Kouetsu TAKAYA, Yuji SHIBA
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Patent number: 8937518Abstract: An electromagnetic switch has a contact device having a pair of fixed contacts fixed inside an arc extinguishing chamber housing and a movable contact disposed to contact with and separate from the fixed contacts; and an electromagnetic device having a movable plunger moving between an opened position wherein the movable contact separates from the fixed contacts and a closed position wherein the movable contact contacts with the fixed contacts and pressed down. The arc extinguishing chamber housing is provided with permanent magnets to extinguish an arc generated at an opening time when the movable contact separates from the fixed contacts from a state in the closed position wherein the movable contact is contacting with the fixed contacts. In a state wherein the movable plunger is in the opened position, a magnetic circuit is formed starting from the permanent magnets and returning to the permanent magnets through the movable plunger.Type: GrantFiled: June 14, 2011Date of Patent: January 20, 2015Assignee: Fuji Electric Co., Ltd.Inventors: Kenji Suzuki, Yasuhiro Naka, Kouetsu Takaya, Yuji Shiba, Yuichi Yamamoto
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Publication number: 20150015350Abstract: An electromagnetic switch includes a contact housing case; a plurality of contact mechanisms each having a fixed contact and a movable contact contacting to and separating from the fixed contact, and disposed in parallel inside the contact housing case; a movable contact holding portion holding the movable contacts of the plurality of contact mechanisms; and an electromagnet unit having a movable plunger moving the movable contact holding portion.Type: ApplicationFiled: October 3, 2014Publication date: January 15, 2015Inventors: Hiroyuki TACHIKAWA, Masaru ISOZAKI, Osamu KASHIMURA, Kouetsu TAKAYA
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Patent number: 8928436Abstract: An electromagnetic switch for a starter. The electromagnetic switch includes a cylindrical slidable member that is separate from a plunger, loosely encompasses an outer circumferential periphery of a plunger rod, and is axially movable integrally with the plunger. Whether the solenoid is in its active or inactive state, the slidable member is at least partially axially inserted into an inner circumferential periphery of a cylindrical bore and an outer circumferential periphery of the slidable member is entirely circumferentially in sliding contact with the inner circumferential periphery of the cylindrical bore.Type: GrantFiled: December 18, 2013Date of Patent: January 6, 2015Assignee: Denso CorporationInventor: Takashi Hirabayashi
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Patent number: 8902028Abstract: An electromagnetic contactor includes a base plate having an aperture hole; an arc extinguishing chamber formed by a fixed terminal support insulating substrate and a cylinder portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a flange portion. A cap connection portion is formed by the cap and a second connection member having a tube portion and a flange portion. The flange portion of the first connection member is attached to one surface of the base plate, and the flange portion of the second connection member is attached to the other surface of the base plate, so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate.Type: GrantFiled: December 19, 2013Date of Patent: December 2, 2014Assignees: Fuji Electric Co., Ltd., Fuji Electric FA Components & Systems Co., Ltd.Inventors: Seiji Imamura, Kouichi Okamoto, Taku Ogawa, Yuichi Yamamoto, Kouetsu Takaya
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Patent number: 8860537Abstract: An electromagnetic relay includes a fixed iron core, a movable iron core opposed to the fixed iron core, a magnetizing coil for generating a magnetic force when energized to make the movable iron core attracted by the fixed iron core, a movable contact coupled with the movable iron core, a fixed contact opposed to be contacted with the movable contact, a reset spring for reset the movable iron core, and a repulsive-force generating coil. The repulsive-force generating coil generates a magnetic field opposing to a remaining magnetic field of the movable iron core while the movable iron core moves from a position where the movable contact has passed through an arc field where an arc discharge between movable contact and the fixed contact to be occurred to a position where the movable iron core is just about to expand the reset spring fully.Type: GrantFiled: May 31, 2011Date of Patent: October 14, 2014Assignee: Nissan Motor Co., Ltd.Inventor: Yosuke Sora