-
公开(公告)号：US11227736B2
公开(公告)日：2022-01-18
申请号：US16570278
申请日：2019-09-13
Inventor： Satoshi Sakai , Katsuya Uruma
Abstract: An electromagnetic device includes a coil, a fixed iron core, a movable iron core configured to reciprocate to separate from the fixed iron core by a predetermined gap when a current applied to the coil is stopped and move to the fixed iron core by an attractive force when the current is applied to the coil, and a permanent magnet. The permanent magnet is arranged so that the permanent magnet is opposed to the gap in a second direction perpendicular to a first direction and separated from the fixed iron core and the movable iron core with a space interposed therebetween. A direction of a second magnetic flux generated by the permanent magnet conforms to a direction of the first magnetic flux between opposed surfaces of the fixed iron core and the movable iron core.
-
公开(公告)号：USRE49236E1
公开(公告)日：2022-10-04
申请号：US16437568
申请日：2019-06-11
Inventor： Koji Yokoyama , Satoshi Sakai
Abstract: A contact device includes a pair of fixed contacts, a movable contactor, a contactor holder, a movable shaft, and a base. The pair of fixed contacts are aligned in a first direction. The movable contactor comes into or out of contact with the pair of fixed contacts in a second direction orthogonal to the first direction. The contactor holder holds the movable contactor. The movable shaft moves the contactor holder in the second direction so that the movable contactor comes into or out of contact with the fixed contacts. The base accommodates the fixed contacts, the movable contactor, and the contactor holder. The base has a projection projecting from a position opposing the contactor holder in a third direction orthogonal to both the first and second directions.
-
公开(公告)号：US10446349B2
公开(公告)日：2019-10-15
申请号：US15619816
申请日：2017-06-12
Inventor： Satoshi Sakai , Katsuya Uruma
Abstract: An electromagnetic device includes a coil, a fixed member, a movable member configured to reciprocate to separate from the fixed member by a predetermined gap when a current applied to the coil is stopped and move to the fixed member by an attractive force when the current is applied to the coil, and a permanent magnet. The permanent magnet is arranged at a position adjacent to the gap and separated from the fixed member and the movable member with a space interposed therebetween. A direction of a second magnetic flux generated by the permanent magnet conforms to a direction of a first magnetic flux generated between the respective opposed surfaces of the fixed member and the movable member when the current is applied to the coil.
-
Patent Agency Ranking
公开(公告)号：US10446350B2
公开(公告)日：2019-10-15
申请号：US15619885
申请日：2017-06-12
Inventor： Satoshi Sakai , Katsuya Uruma
Abstract: An electromagnetic device includes: a coil configured to generate a first magnetic flux; a fixed member, a movable member configured to reciprocate to separate from the fixed member by a predetermined gap when a current applied to the coil is stopped and move to the fixed member by an attractive force when the current is applied to the coil; and a permanent magnet configured to generate a second magnetic flux between the respective opposed surfaces of the fixed member and the movable member in the same direction as the first magnetic flux. The permanent magnet is attached to at least one of the fixed member and the movable member such that a magnetized surface of the permanent magnet is opposed and exposed to the opposed surface of the other one of the fixed member and the movable member.
-
公开(公告)号：US09679707B2
公开(公告)日：2017-06-13
申请号：US15088294
申请日：2016-04-01
Inventor： Koji Yokoyama , Satoshi Sakai
CPC classification number: H01H1/22 , H01H1/2075
Abstract: A contact device includes a pair of fixed contacts, a movable contactor, a contactor holder, a movable shaft, and a base. The pair of fixed contacts are aligned in a first direction. The movable contactor comes into or out of contact with the pair of fixed contacts in a second direction orthogonal to the first direction. The contactor holder holds the movable contactor. The movable shaft moves the contactor holder in the second direction so that the movable contactor comes into or out of contact with the fixed contacts. The base accommodates the fixed contacts, the movable contactor, and the contactor holder. The base has a projection projecting from a position opposing the contactor holder in a third direction orthogonal to both the first and second directions.
-
公开(公告)号：US11387063B2
公开(公告)日：2022-07-12
申请号：US17286929
申请日：2019-09-19
Inventor： Satoshi Sakai
Abstract: A contact point device includes a fixed contact, a movable contactor that has a movable contact capable of being in contact with the fixed contact by moving in parallel with a first direction, a containing chamber that contains the fixed contact and the movable contact, and a shielding wall disposed inside the containing chamber. The shielding wall is located in the first direction from the fixed contact and the movable contact when viewed in a second direction orthogonal to the first direction, the shielding wall extends along the first direction, and the shielding wall is provided with one or a plurality of through holes that penetrate the shielding wall.
-
公开(公告)号：US11276539B2
公开(公告)日：2022-03-15
申请号：US16570378
申请日：2019-09-13
Inventor： Satoshi Sakai , Katsuya Uruma
Abstract: An electromagnetic device includes a fixed iron core through which a first magnetic flux flows, a movable iron core that reciprocates to separate from the fixed iron core by a predetermined gap when a current applied to a coil, which generates the first magnetic flux, is stopped and move to the fixed iron core by an attractive force when the current is applied to the coil. The electromagnetic device also includes a permanent magnet that generates a second magnetic flux. The opposed surface of the fixed iron core and the opposed surface of the movable iron core may be opposed in a reciprocating direction of the movable iron core. The permanent magnet may be attached to the fixed iron core such that a magnetized surface of the permanent magnet is opposed and exposed to the opposed surface of the movable iron core.
-
公开(公告)号：US09799474B2
公开(公告)日：2017-10-24
申请号：US15088298
申请日：2016-04-01
Inventor： Satoshi Sakai , Koji Yokoyama
CPC classification number: H01H50/026 , H01H45/04 , H01H47/22 , H01H50/20 , H01H50/546 , H01H50/58
Abstract: A contactor includes a pair of fixed contacts, a movable contact element configured to contact the pair of fixed contacts and to be separated from the pair of fixed contacts, a movable shaft configured to move in an axial direction as to cause the movable contact element to contact the pair of fixed contacts and to be separated from the pair of fixed contacts, and a partition-wall component disposed opposite to the pair of fixed contacts with respect to the movable contact element. The first partition-wall component includes a partition wall provided around the movable shaft. The first partition wall is configured to move synchronously with at least one of the movable contact element and the movable shaft.
-
-
-
-
-
-
-
Search Results
8
records
(took 0.02 seconds)
