公开(公告)号：US10431407B2

公开(公告)日：2019-10-01

申请号：US15621511

申请日：2017-06-13

Applicant: ABB Schweiz AG

Inventor： Andrea Delpozzo ,  Emanuele Morelli ,  Osvaldo Prestini ,  Veronica Biagini ,  Christian Simonidis

IPC: H01H50/36 ,  H01H50/56 ,  H01H3/28 ,  H01H33/38 ,  H01H33/666 ,  H01F1/147 ,  H01H3/30 ,  H01H50/18 ,  H01H51/22

Abstract: Systems, methods, techniques and apparatuses of contactors are disclosed. One exemplary embodiment is a contactor including an electric pole, a pair of plungers, and a pair of opening springs. The electric pole includes a fixed yoke member and a movable yoke member arranged respectively at a proximal position and a distal position with respect to a movable contact. The fixed yoke member includes a pair of through holes. The pair of second plungers are inserted in a corresponding through hole passing through the fixed yoke member and symmetrically positioned with respect to a main symmetry plane of the contactor, which is parallel to a displacement axis of the movable contact and perpendicular to a displacement plane of the movable contact. The pair of opening springs are symmetrically positioned with respect to the main symmetry plane.

公开(公告)号：US20190252140A1

公开(公告)日：2019-08-15

申请号：US16336141

申请日：2017-07-26

Applicant: ABB Schweiz AG

Inventor： Andrea Delpozzo ,  Emanuele Morelli ,  Veronica Biagini ,  Osvaldo Prestini

IPC: H01H33/666 ,  H01H33/38

CPC classification number: H01H33/666 ,  H01H33/022 ,  H01H33/38 ,  H01H33/6662

Abstract: A contactor for medium voltage electric systems including: one or more electric poles; for each electric pole, a fixed contact and a corresponding movable contact reversibly movable between a first position, at which the movable contact is decoupled from the fixed contact, and a second position, at which the movable contact is coupled with the fixed contact; an electromagnetic actuator including a magnetic yoke having a fixed yoke member and a movable yoke member, the movable yoke member reversibly movable between a third position corresponding to the first position of the movable contacts, at which the movable yoke member is decoupled from the fixed yoke member, and a fourth position, corresponding to the second position of the movable contacts, at which the movable yoke member is coupled with the fixed yoke member, the electromagnetic actuator including an excitation circuit assembly including an excitation coil wound around the magnetic yoke and electrically connected with an auxiliary electric power supply to be fed with an excitation current to generate an excitation magnetic flux to move the movable yoke member from the third position to the fourth position or to maintain the movable yoke member in the fourth position; an opening springs operatively coupled with the movable yoke member to move the movable yoke member from the fourth position to the third position; a kinematic chain to operatively connect said movable yoke member with said movable contacts. The electromagnetic actuator including camping circuit assembly comprising a damping coil arranged to form a conductive loop adapted to be at least partially enchained with the excitation magnetic flux generated by the excitation current flowing along the excitation coil, when the auxiliary electric power supply provides the excitation current to the excitation coil, so that a secondary current circulates along the damping coil when the excitation magnetic flux is subject to a transient.

公开(公告)号：US11094485B2

公开(公告)日：2021-08-17

申请号：US16336141

申请日：2017-07-26

Applicant: ABB Schweiz AG

Inventor： Andrea Delpozzo ,  Emanuele Morelli ,  Veronica Biagini ,  Osvaldo Prestini

IPC: H01H33/38 ,  H01H33/666 ,  H01H33/28 ,  H01H33/02

Abstract: A contactor for medium voltage electric systems including: one or more electric poles; for each electric pole, a fixed contact and a corresponding movable contact reversibly movable between a first position, at which the movable contact is decoupled from the fixed contact, and a second position, at which the movable contact is coupled with the fixed contact; an electromagnetic actuator including a magnetic yoke having a fixed yoke member and a movable yoke member, the movable yoke member reversibly movable between a third position corresponding to the first position of the movable contacts, at which the movable yoke member is decoupled from the fixed yoke member, and a fourth position, corresponding to the second position of the movable contacts, at which the movable yoke member is coupled with the fixed yoke member, the electromagnetic actuator including an excitation circuit assembly including an excitation coil wound around the magnetic yoke and electrically connected with an auxiliary electric power supply to be fed with an excitation current to generate an excitation magnetic flux to move the movable yoke member from the third position to the fourth position or to maintain the movable yoke member in the fourth position; an opening springs operatively coupled with the movable yoke member to move the movable yoke member from the fourth position to the third position; a kinematic chain to operatively connect said movable yoke member with said movable contacts. The electromagnetic actuator including camping circuit assembly comprising a damping coil arranged to form a conductive loop adapted to be at least partially enchained with the excitation magnetic flux generated by the excitation current flowing along the excitation coil, when the auxiliary electric power supply provides the excitation current to the excitation coil, so that a secondary current circulates along the damping coil when the excitation magnetic flux is subject to a transient.

公开(公告)号：US20170358412A1

公开(公告)日：2017-12-14

申请号：US15621511

申请日：2017-06-13

Applicant: ABB Schweiz AG

Inventor： Andrea Delpozza ,  Emanuele Morelli ,  Osvaldo Prestini ,  Veronica Biagini ,  Christian Simonidis

IPC: H01H50/18 ,  H01H50/56 ,  H01H50/36 ,  H01F1/147

CPC classification number: H01H50/18 ,  H01F1/14766 ,  H01H3/28 ,  H01H3/30 ,  H01H33/38 ,  H01H33/6662 ,  H01H50/36 ,  H01H50/56 ,  H01H51/2209 ,  H01H2235/01

Abstract: A contactor (1) comprising: one or more electric poles (3); for each electric pole, a fixed contact (31) and a corresponding movable contact (32), the one or more movable contacts (32) of said contactor being reversibly movable, along corresponding displacement axes (33) mutually parallel and lying on a common displacement plane (34), between a first position (A), at which said movable contacts are decoupled from the corresponding fixed contacts, and a second position (B), at which said movable contacts are coupled with the corresponding fixed contacts; a movable armature (7) reversibly movable, along a corresponding displacement direction parallel to the displacement axes (33) of said movable contacts, between a third position (C) and a fourth position (D); for each electric pole, a first plunger (8) coupled with said movable armature (7) and with a corresponding movable contact (32), each first plunger extending along a corresponding main longitudinal axis parallel or coinciding with the displacement axis (33) of a corresponding movable contact (32); an electromagnetic actuator (4) comprising a magnetic yoke (41, 42) having a fixed yoke member (41) and a movable yoke member (42), said movable yoke member being reversibly movable, along a corresponding displacement direction parallel to the displacement axes (33) of said movable contacts (32), between a fifth position (E), at which it is decoupled from said fixed yoke member, and a sixth position (F), at which it is coupled with said fixed yoke member, said electromagnetic actuator further comprising a coil (44) wound around said fixed yoke member (41) and adapted to be fed by a coil current (IC) to make said fixed yoke member (41) to magnetically interact with said movable yoke member (42) and generate a force to move said movable yoke member from said fifth position (E) to said sixth position (F) or maintain said movable yoke member in said sixth position (F); one or more opening springs (6) coupled with said fixed yoke member (41) and said movable yoke member (42), said opening springs being adapted to provide a force to move said movable yoke member from said sixth position (F) to said fifth position (E); one or more second plungers (5) coupled with said movable yoke member (42) and said movable armature (7), each second plunger extending along a corresponding main longitudinal axis parallel with the displacement axes (33) of said movable contacts (32).