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公开(公告)号：US10186925B2
公开(公告)日：2019-01-22
申请号：US15099830
申请日：2016-04-15
Applicant: MAGNETI MARELLI S.p.A.
Inventor： Franco Ciampolini , Marco Magri
Abstract: An electric machine provided with: a stator having a magnetic core longitudinally crossed by a plurality of stator slots; a stator winding having a series of rigid bars, which are “U”-shaped and are inserted through the stator slots defining an entry side, in which the cusps of the “U”-shaped bars are placed, and an exit side, in which the legs of the “U”-shaped bars are placed; the ends of at least two non-adjacent legs are electrically connected to one another by means of a connection bridge; and an insulating support is provided, which houses the connection bridge, is arranged under the connection bridge and has a plurality of through holes, into which some legs are inserted, which have to pass through the insulating support itself.
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公开(公告)号：US20160181881A1
公开(公告)日：2016-06-23
申请号：US14977092
申请日：2015-12-21
Applicant: MAGNETI MARELLI S.P.A.
Inventor： Marco Magri , Marzio Lettich , Vlad Mihai Constandachi
CPC classification number: H02K3/12 , H02K3/28 , H02K3/38 , H02K3/50 , H02K15/0081 , H02K2203/09
Abstract: An electric machine comprising a stator comprising: at least one stator winding elements that extends from a first to a second end, separate from each other, at least one electrical bridge suitable to electrically connect the separate ends of said stator winding element, at least a support and attachment plate made of electrically insulating material which defines at least one seat suitable to house at least partially, and retain in position, the electrical bridge, the seat being provided with attachment means which form at least partially a shaped coupling with the at least one electrical bridge, so as to mechanically lock it in position on the support and attachment plate, said seat allowing the passage of the ends of the stator winding element and the electrical connection between the latter and the electrical bridge, the seat electrically insulating the electrical bridge from other components of the stator.
Abstract translation: 一种包括定子的电机，包括：至少一个定子绕组元件，其从第一端延伸到第二端，彼此分离，至少一个电桥，适于电连接所述定子绕组元件的分离端，至少一个 由电绝缘材料制成的支撑和附接板，其限定至少一个座椅，其适于至少部分地容纳并且保持在电气桥上的位置，所述座椅设置有附接装置，所述附接装置至少部分地形成至少部分成形的联接器 一个电桥，以便将其机械地锁定在支撑和附接板上的适当位置，所述座允许定子绕组元件的端部通过并且其间的电连接与电桥之间的电连接，座椅将电气电绝缘 从定子的其他部件的桥梁。
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Patent Agency Ranking
公开(公告)号：US20190288579A1
公开(公告)日：2019-09-19
申请号：US16299599
申请日：2019-03-12
Applicant: MAGNETI MARELLI S.p.A.
Inventor： Marco Magri , Francesco Leli , Salvatore Stamato
Abstract: A rotor for a rotary electric machine; the rotor has: a shaft, which is mounted so as to rotate around a rotation axis; a magnetic core, which is arranged around the shaft and consists of a plurality of lamination sheets stacked together; and a pair of end discs, which are arranged around the shaft at the two opposite ends of the magnetic core and are designed to keep the lamination sheets of the magnetic core stacked together; wherein the end discs are designed to have balancing holes, which dynamically balance the rotor around the rotation axis. Each end disc consists of an inner component with an annular shape, which is arranged around the shaft and is made of a first metal material, and of an outer component with an annular shape, which is arranged around the inner component and is made of a second metal material, which is different from the first metal material and is non-magnetic.
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公开(公告)号：US10239154B2
公开(公告)日：2019-03-26
申请号：US15099804
申请日：2016-04-15
Applicant: MAGNETI MARELLI S.p.A.
Inventor： Franco Ciampolini , Marco Magri
IPC: B23K26/22 , B23K26/035 , B23K26/00 , B23K26/03 , H02K15/00 , H02K3/12 , B23K26/26 , B23K26/32 , H02K15/04 , H02K3/50 , B23K101/38 , B23K103/12
Abstract: A laser welding method to weld two adjacent metal elements of a stator winding with rigid bars for an electric machine; the two metal elements are arranged one beside the other and have respective upper surfaces, which are arranged coplanar to one another and have at least one common edge; in succession, in the direction of the upper surfaces of the two metal elements, a first laser beam is aimed, which is fed along a first welding line, which is perpendicular to the common edge and extends through the common edge itself, and then a second laser beam is aimed, which is fed along a second welding line, which is perpendicular to the common edge and extends through the common edge itself, is parallel to and spaced apart from the first line and has a length that is smaller than the one of the first line.
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公开(公告)号：US09973064B2
公开(公告)日：2018-05-15
申请号：US14940294
申请日：2015-11-13
Applicant: MAGNETI MARELLI S.p.A.
Inventor： Marco Magri , Franco Ciampolini
IPC: H02K15/04 , H02K15/085 , H02K11/20
CPC classification number: H02K15/0414 , H02K11/20 , H02K15/0421 , H02K15/085 , Y10T29/49004 , Y10T29/49073 , Y10T29/53022 , Y10T29/53161
Abstract: Method and station for the construction of a stator winding with rigid bars for a rotary electrical machine; an insulated wire of electrically conductor material and provided on the outside with an insulating layer is unwound from a coil. A final end of the insulated wire is bent in a “U” shape so as to create a bar having two legs connected to one another by a cusp. The insulated wire is transversely cut to separate the rigid bar from the remaining part of the wire; and the bar is inserted into a stator slot of a magnetic core of a stator. The electrical conductivity is measured between the core and the outer surface of the insulated wire by means of a first electrode electrically and permanently connected to the core of the insulated wire and a second electrode, which rubs against the outer surface of the insulated wire.
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公开(公告)号：US10277088B2
公开(公告)日：2019-04-30
申请号：US15099980
申请日：2016-04-15
Applicant: MAGNETI MARELLI S.p.A
Inventor： Franco Ciampolini , Marco Magri
Abstract: A method to construct an electric machine provided with: a stator having a magnetic core longitudinally crossed by a plurality of stator slots; a stator winding having a series of rigid bars, which are “U”-shaped and are inserted through the stator slots defining an entry side, in which the cusps of the “U”-shaped bars are placed, and an exit side, in which the legs of the “U”-shaped bars are placed; the construction method comprises the steps of electrically connecting the ends of at least two non-adjacent legs to one another by means of a connection bridge, which is made of a flat plate arranged perpendicular to the central axis of rotation and has, for each leg, a corresponding “U”-shaped seat, which is suited to receive the end of the leg.
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公开(公告)号：US10069364B2
公开(公告)日：2018-09-04
申请号：US14977092
申请日：2015-12-21
Applicant: MAGNETI MARELLI S.P.A.
Inventor： Marco Magri , Marzio Lettich , Vlad Mihai Constandachi
Abstract: An electric machine comprising a stator including at least one stator winding elements that extends from a first to a second end, separate from each other; at least one electrical bridge suitable to electrically connect the separate ends of said stator winding element; at least a support and attachment plate made of electrically insulating material which defines at least one seat suitable to house at least partially, and retain in position, the electrical bridge. The seat is provided with attachment mechanisms which form at least partially a shaped coupling with the at least one electrical bridge, so as to mechanically lock it in position on the support and attachment plate. The seat allows the passage of the ends of the stator winding element and the electrical connection between the latter and the electrical bridge. The seat electrically insulates the electrical bridge from other components of the stator.
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