发明名称 |
Electrical Contact Switch and Electrical Contactor |
摘要 |
An electrical contact switch for use in an electrical contactor, which comprises first and second electrical terminals, an electrically-conductive busbar in electrical communication with the first electrical terminal, and at least one fixed electrical contact which is attached to the electrically-conductive busbar. The switch also has an electrically-conductive moveable arm in electrical communication with the second electrical terminal, with at least one moveable electrical contact which is attached to the electrically-conductive moveable arm to form an electrical contact set with the fixed electrical contact. A fixed ferromagnetic element is positioned at or adjacent to a side of the electrically-conductive moveable arm proximate the second electrical terminal, and a moveable ferromagnetic element is provided in physical communication with a side of the electrically-conductive moveable arm which is opposite to the fixed ferromagnetic element. In a closed condition of the electrical contact set, the electrically-conductive moveable arm induces a magnetic field in the fixed and moveable ferromagnetic elements, and thus the moveable ferromagnetic element is magnetically attracted towards the fixed ferromagnetic element to thereby increase a contact pressure on the electrical contact set. An electrical contactor and method of preventing or inhibiting contact bounce of an electrical contactor are also provided. |
申请公布号 |
US2017110276(A1) |
申请公布日期 |
2017.04.20 |
申请号 |
US201615295038 |
申请日期 |
2016.10.17 |
申请人 |
Johnson Electric S.A. |
发明人 |
Connell Richard Anthony |
分类号 |
H01H50/60;H01H50/64;H01H50/20 |
主分类号 |
H01H50/60 |
代理机构 |
|
代理人 |
|
主权项 |
1. An electrical contact switch for use in an electrical contactor, the electrical contact switch comprising:
first and second electrical terminals; an electrically-conductive busbar in electrical communication with the first electrical terminal; at least one fixed electrical contact which is attached to the electrically-conductive busbar; an electrically-conductive moveable arm in electrical communication with the second electrical terminal; at least one moveable electrical contact which is attached to the electrically-conductive moveable arm to form an electrical contact set with the fixed electrical contact; a fixed ferromagnetic element positioned at or adjacent to a side of the electrically-conductive moveable arm proximate the second electrical terminal; and a moveable ferromagnetic element in physical communication with a side of the electrically-conductive moveable arm which is opposite to the fixed ferromagnetic element; wherein, in a closed condition of the electrical contact set, the electrically-conductive moveable arm induces a magnetic field in the fixed and moveable ferromagnetic elements, the moveable ferromagnetic element being magnetically attracted towards the fixed ferromagnetic element to thereby increase a contact pressure on the electrical contact set. |
地址 |
Murten CH |