-
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：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：US11972917B2
公开(公告)日：2024-04-30
申请号：US17637193
申请日：2020-09-24
Inventor： Masato Nakamura , Shun Ito , Shinya Kimoto , Katsuya Uruma
IPC: H01H39/00
CPC classification number: H01H39/00
Abstract: A disconnect device includes: a conductor connectable to an external conductive path; a housing that has an internal space and accommodates at least a part of the conductor; and a cooling body that is disposed in the internal space and cools an arc generated in the internal space. The cooling body includes a porous body configured with at least one of a metal oxide and an inorganic oxide.
-
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.
-
5.发明申请公开(公告)号：US20150194284A1
公开(公告)日：2015-07-09
申请号：US14412946
申请日：2013-07-01
Inventor： Katsuya Uruma , Hideki Enomoto , Yohji Ikeda
IPC: H01H50/64
CPC classification number: H01H50/64 , H01H1/06 , H01H1/2083 , H01H9/443 , H01H50/546 , H01H2050/025 , H01H2201/022
Abstract: A contact device includes: a contact block including a plurality of fixed terminals on which fixed contacts are formed, and a movable contactor on which movable contacts contacting and leaving the fixed contacts are formed; and a driving block that drives the movable contactor. Moreover, it is made possible to extinguish arcs, which are generated in an event where the contacts contact and leave each other, by arranging permanent magnets on a periphery of the contact block. Then, at least one fixed terminal among the plurality of fixed terminals is formed so that the fixed contact and the movable contact can abut against each other in a region other than a side opposite to the other fixed terminal.
Abstract translation: 接触装置包括：接触块，其包括形成有固定接触件的多个固定端子;以及活动接触器，活动触头接触和离开固定触点; 以及驱动活动接触器的驱动块。 此外，通过在接触块的周边配置永久磁铁，可以消除在触点接触和离开的情况下产生的电弧。 然后，多个固定端子中的至少一个固定端子被形成为使得固定触点和可动触头可以在与另一个固定端子相对的一侧以外的区域中彼此抵接。
-
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：US09881758B2
公开(公告)日：2018-01-30
申请号：US14412946
申请日：2013-07-01
Inventor： Katsuya Uruma , Hideki Enomoto , Yohji Ikeda
CPC classification number: H01H50/64 , H01H1/06 , H01H1/2083 , H01H9/443 , H01H50/546 , H01H2050/025 , H01H2201/022
Abstract: A contact device includes: a contact block including a plurality of fixed terminals on which fixed contacts are formed, and a movable contactor on which movable contacts contacting and leaving the fixed contacts are formed; and a driving block that drives the movable contactor. Moreover, it is made possible to extinguish arcs, which are generated in an event where the contacts contact and leave each other, by arranging permanent magnets on a periphery of the contact block. Then, at least one fixed terminal among the plurality of fixed terminals is formed so that the fixed contact and the movable contact can abut against each other in a region other than a side opposite to the other fixed terminal.
-
-
-
-
-
-
Search Results
7
records
(took 0.019 seconds)
