公开(公告)号：US20210343493A1

公开(公告)日：2021-11-04

申请号：US17283253

申请日：2019-09-18

Applicant: OMRON Corporation

Inventor： Shingo MORI ,  Ryota MINOWA ,  Yasuo HAYASHIDA ,  Naoki KAWAGUCHI ,  Kohei OTSUKA ,  Hiroyuki IWASAKA

IPC: H01H50/12 ,  H01H50/02 ,  H01H50/54 ,  H01H50/36

Abstract: An electromagnetic relay includes a fixed terminal, a movable contact piece, a housing, and a heat dissipation structure. The fixed terminal includes a first surface, a second surface opposite the first surface, and a fixed contact disposed on the first surface. The movable contact piece includes a movable contact that is configured to contact the fixed contact. The housing includes an accommodation space accommodating a portion of the fixed terminal, the fixed contact, and the movable contact piece. The heat dissipation structure includes a heat dissipation space that is provided on the second surface of the fixed terminal for dissipating the heat of the fixed terminal to an outside of the accommodation space.

公开(公告)号：US20210304993A1

公开(公告)日：2021-09-30

申请号：US17262212

申请日：2019-02-19

Applicant: OMRON Corporation

Inventor： Kohei OTSUKA ,  Ryota MINOWA ,  Hiroyuki IWASAKA ,  Yasuo HAYASHIDA ,  Shingo MORI ,  Naoki KAWAGUCHI

IPC: H01H50/54 ,  H01H50/18 ,  H01H33/18 ,  H01H50/10

Abstract: A relay, including a first fixed contact, a second fixed contact, a movable contact piece having first and second movable contacts, a contact piece holding unit configured to hold the movable contact piece, a magnet for arc extinguishing, and a debris suction unit configured to exert a magnetic force to suck debris, is disclosed. A first contact position between the first fixed contact and the first movable contact is located between the magnet for arc extinguishing and the contact piece holding unit in a longitudinal direction of the movable contact piece. The debris suction unit is disposed so that the first contact position does not overlap a region between the debris suction unit and the contact piece holding unit. A magnet force exerted by the debris suction unit in the contact piece holding unit is larger than a magnetic force exerted by the magnet in the contact piece holding unit.

公开(公告)号：US20210304991A1

公开(公告)日：2021-09-30

申请号：US17262217

申请日：2019-02-18

Applicant: OMRON Corporation

Inventor： Kohei OTSUKA ,  Ryota MINOWA ,  Hiroyuki IWASAKA ,  Yasuo HAYASHIDA ,  Shingo MORI ,  Naoki KAWAGUCHI

IPC: H01H50/14 ,  H01H50/04

Abstract: An electromagnetic relay includes a fixed terminal, a movable contact piece, a first contact, and a second contact. The fixed terminal includes a first surface. The movable contact piece includes a second surface disposed to face the first surface. The first contact is embedded in one of the fixed terminal or the movable contact piece to be flush with one of the first surface or the second surface. The second contact is disposed on the other of the fixed terminal or the movable contact piece to face the first contact. The second contact protrudes from the other of the first surface or the second surface toward the first contact and include a contact surface smaller than the first contact when viewed from a direction facing the first contact.

公开(公告)号：US20220093355A1

公开(公告)日：2022-03-24

申请号：US17421726

申请日：2019-11-18

Applicant: OMRON Corporation

Inventor： Yasuo HAYASHIDA ,  Ryota MINOWA ,  Shingo MORI ,  Naoki KAWAGUCHI ,  Kohei OTSUKA ,  Hiroyuki IWASAKA

IPC: H01H50/34 ,  H01H50/54

Abstract: A first yoke is arranged in a contact direction with respect to a movable contact piece. A second yoke is arranged in an opening direction with respect to the movable contact piece. The first yoke and the second yoke are configured to generate a magnetic force that attracts the first yoke and the second yoke to each other when the movable contact contacts the fixed contact and is energized. The first yoke and the second yoke are arranged not to contact each other so that the movable contact piece can contact the fixed terminal in a state where the movable contact and the fixed contact are lost.

公开(公告)号：US20210335565A1

公开(公告)日：2021-10-28

申请号：US17262209

申请日：2019-02-19

Applicant: OMRON Corporation

Inventor： Naoki KAWAGUCHI ,  Ryota MINOWA ,  Yasuo HAYASHIDA ,  Kohei OTSUKA ,  Shingo MORI ,  Hiroyuki IWASAKA

IPC: H01H50/38 ,  H01H50/60 ,  H01H9/44

Abstract: A relay includes a first fixed contact, a second fixed contact, a movable contact piece having first and second movable contacts, a contact piece holding unit configured to hold the movable contact piece, and first to fourth magnets. The first magnet and the second magnet are disposed so that same poles thereof face each other. The movable contact piece is disposed between the first magnet and the second magnet in a width direction of the movable contact piece. The third magnet is disposed so as to increase a magnetic flux in a longitudinal direction of the movable contact piece at a position between the first fixed contact and the first movable contact. The fourth magnet is disposed so as to increase a magnetic flux in the longitudinal direction of the movable contact piece at a position between the second fixed contact and the second movable contact.

公开(公告)号：US20170309429A1

公开(公告)日：2017-10-26

申请号：US15509865

申请日：2015-10-28

Applicant: OMRON Corporation

Inventor： Yasuo HAYASHIDA ,  Ayaka MIYAKE

IPC: H01H50/02 ,  H01H50/38 ,  H01H50/54

CPC classification number: H01H50/02 ,  H01H50/026 ,  H01H50/38 ,  H01H50/54 ,  H01H50/60 ,  H01H2205/002

Abstract: An electromagnetic relay includes a base, an electromagnet block having a spool with a through hole opening at a flange portion thereof and mounted on an upper surface of the base, a movable iron piece, a movable contact piece rotatable integrally with the movable iron piece, a movable contact fixed to a free end of the movable contact piece, and a fixed contact fixed to a fixed contact terminal and contactable with and separable from the movable contact along with rotation of the movable contact piece. Insulating ribs project from an inward facing surface of a spacer integrally formed with the movable iron piece and an outward facing surface of the flange portion respectively such that the insulating ribs intercept a straight line connecting a magnetic pole portion projecting through the through hole and the fixed contact or the fixed contact terminal with a shortest distance.

公开(公告)号：US20170301494A1

公开(公告)日：2017-10-19

申请号：US15509914

申请日：2015-07-27

Applicant: OMRON Corporation

Inventor： Syuichi ITODA ,  Masayuki NODA ,  Koji TAKAMI ,  Takeshi NISHIDA ,  Yasuo HAYASHIDA ,  Keisuke YANO ,  Ayaka MIYAKE

IPC: H01H50/38 ,  H01H50/54

CPC classification number: H01H50/38 ,  H01H50/02 ,  H01H50/42 ,  H01H50/54 ,  H01H50/58 ,  H01H50/60 ,  H01H2205/002 ,  H01H2235/01

Abstract: Provided is an electromagnetic relay that is reduced in size and has great flexibility in designing. For this purpose, when a predetermined time has passed after generation of an arc at least either between a movable contact and a fixed contact or between a movable contact and a fixed contact, an arc generated between the movable contact and the fixed contact is extended by a magnetic field generation unit to be longer than an arc generated between the movable contact and the fixed contact.

公开(公告)号：US20210327671A1

公开(公告)日：2021-10-21

申请号：US17262221

申请日：2019-02-19

Applicant: OMRON Corporation

Inventor： Shingo MORI ,  Ryota MINOWA ,  Yasuo HAYASHIDA ,  Naoki KAWAGUCHI ,  Kohei OTSUKA ,  Hiroyuki IWASAKA

IPC: H01H50/64 ,  H01H50/60

Abstract: An electromagnetic relay includes a fixed contact, a movable contact piece having a movable contact, a drive shaft, an electromagnetic drive device, and a positioning portion. The movable contact piece is movable in a first direction contacting the fixed contact and in a second direction separating from the fixed contact. The electromagnetic drive device includes a movable iron core integrally movably connected to the drive shaft. The electromagnetic drive device switches between a contact state in which the movable contact comes into contact with the fixed contact and a separate state in which the movable contact is separated from the fixed contact by moving the drive shaft with the movable iron core. The positioning portion positions the drive shaft or the movable iron core in the separate state. The drive shaft or the movable iron core includes a first inclined portion that contacts the positioning portion in the separate state.

公开(公告)号：US20210304994A1

公开(公告)日：2021-09-30

申请号：US17262214

申请日：2019-02-19

Applicant: OMRON Corporation

Inventor： Shingo MORI ,  Ryota MINOWA ,  Yasuo HAYASHIDA ,  Naoki KAWAGUCHI ,  Kohei OTSUKA ,  Hiroyuki IWASAKA

IPC: H01H50/54 ,  H01H50/14 ,  H01H50/02 ,  H01H50/18

Abstract: A relay includes a movable contact piece having a first movable contact and a second movable contact, a first fixed terminal having a first fixed contact, a second fixed terminal having a second fixed contact, a drive device configured to move the movable contact piece, and the wall portion disposed inside the first fixed contact and the second fixed contact in a longitudinal direction. At least a part of the wall portion is disposed at a position beyond the first fixed contact and the second fixed contact toward the movable contact piece in a moving direction of the movable contact piece. The movable contact piece has a shape so as to avoid the wall portion in a contact state where the first movable contact is in contact with the first fixed contact and the second movable contact is in contact with the second fixed contact.

公开(公告)号：US20210272763A1

公开(公告)日：2021-09-02

申请号：US17268597

申请日：2019-03-04

Applicant: OMRON Corporation

Inventor： Shingo MORI ,  Ryota MINOWA ,  Yasuo HAYASHIDA ,  Naoki KAWAGUCHI ,  Kohei OTSUKA ,  Hiroyuki IWASAKA

IPC: H01H50/58 ,  H01H50/20 ,  H01H50/44

Abstract: 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.