公开(公告)号：EP3872965A2

公开(公告)日：2021-09-01

申请号：EP21155374.8

申请日：2021-02-05

申请人： FERRARI S.p.A.

发明人： FERRARA, Davide ,  POGGIO, Luca ,  FAVERZANI, Paolo

IPC分类号： H02K1/27 ,  H02K1/30 ,  H02K1/32 ,  H02K1/28 ,  H02K5/04 ,  H02K5/18 ,  H02K5/24 ,  H02K9/06 ,  H02K21/14

摘要： Electric machine (1) having: a shaft (2); a rotor (4) with permanent magnets that is fitted to the shaft (2); a stator (5) having a magnetic core (6) which consists of a series of laminations made of ferromagnetic material and longitudinally crossed by a plurality of stator slots (7); and a stator winding (8) having a plurality of rigid bars (9) that are inserted in corresponding stator slots (7) and that are covered, on the outside, with an insulating coating (14). The rotor (4) has a plurality of magnetic elements (22), which are arranged beside one another around the rotation axis (3) so as to form a closed ring. Each magnetic element (22) is formed by a plurality of permanent magnets (23) which are axially arranged one after the other according to a Halbach array.

公开(公告)号：EP4451525A1

公开(公告)日：2024-10-23

申请号：EP24170161.4

申请日：2024-04-15

申请人： FERRARI S.p.A.

发明人： PALERMO, Antonio ,  QUATTROMANI, Gianluca ,  PULVIRENTI, Francesco ,  FERRARA, Davide ,  FAVERZANI, Paolo

IPC分类号： H02K7/02

摘要： An electric axle (4) for a motor vehicle (1) includes an electric motor (5), a transmission assembly to transmit mechanical power delivered by the electric motor (5) to traction means (3) of the motor vehicle for moving the motor vehicle, wherein one between the electric motor (5) and the transmission assembly comprises a rotor (7) rotatable around a rotor axis (R) in response and corresponding to the mechanical power delivered by the motor (5), and wherein the electric axle (4) comprises at least one additional mass (10) coupled to the rotor (7) in a movable manner relatively to the rotor (7), characterized by comprising guiding means (11) configured to constrain a displacement of the mass (10) along a direction (W) fixed to the rotor (7) and having at least one radial component with respect to the rotor axis (R), the mass (10) being arranged eccentrically with respect to the rotor axis (R) by the guiding means (11).

公开(公告)号：EP4336710A1

公开(公告)日：2024-03-13

申请号：EP23195075.9

申请日：2023-09-04

申请人： FERRARI S.p.A.

发明人： FERRARA, Davide ,  FAVERZANI, Paolo ,  POGGIO, Luca

IPC分类号： H02K3/32 ,  H02K3/52

摘要： An electric machine stator has a core (2) of ferromagnetic material, consisting of a plurality of teeth (3) arranged around a longitudinal axis (A) and defining a plurality of slots (4) between them; the stator has, for each tooth (3), an insulating cap (14) fixed to a longitudinal end of the tooth (3) by means of an interference coupling and provided with front projections (19,22) facing and spaced apart from one another in a radial direction; the windings (26), which are made of electrically conductive material, extend in the half-slots (4a) arranged on opposite sides of each tooth (3) and around the cap (14), between said front projections (19,22) in a radial direction; each half-slot (4a) carries at least one sheet (29) of foldable insulating material, which has a C-shaped portion (30), which is interposed between the first wire portions (26a) and the tooth (3), and at least one flap (36,35), which longitudinally projects from said C-shaped portion (30) out of the corresponding half-slot (4a) and radially rests on an end portion (20) that is part of one of said front projections (19,22).

公开(公告)号：EP3489069A2

公开(公告)日：2019-05-29

申请号：EP18208447.5

申请日：2018-11-27

申请人： FERRARI S.p.A.

发明人： MARINO, Luigi ,  FERRARA, Davide ,  SITTA, Ugo ,  LIGABUE, Elena

IPC分类号： B60L7/14 ,  B60L15/20 ,  H02P25/16 ,  B60L50/15 ,  B60L50/51 ,  B60L58/21

摘要： Electric drive system of a hybrid or electric vehicle comprising at least a first (BA) and a second (BB) battery pack, said first battery pack being formed by a first plurality of equal cells, wherein a cell of said first plurality of cells identifies a first predetermined C-rate coefficient (power/capacity) and said second battery pack being formed by a second plurality of equal cells, wherein a cell of said first plurality of cells identifies a second predetermined C-rate coefficient (power/capacity) higher than said first predetermined coefficient, and wherein the drive system comprises at least a first (CA) and a second (CB) set of electromagnetic induction windings, respectively independently powered by said first and second battery pack by means of relative first (IA) and second inverter (IB).

公开(公告)号：EP3863156A1

公开(公告)日：2021-08-11

申请号：EP21155362.3

申请日：2021-02-05

申请人： FERRARI S.p.A.

发明人： FERRARA, Davide ,  POGGIO, Luca ,  FAVERZANI, Paolo

IPC分类号： H02K3/34

摘要： Electric machine (1) having: a shaft (2); a rotor (4) with permanent magnets (23) that is fitted to the shaft (2); a stator (5) having a magnetic core (6) which consists of a series of laminations made of ferromagnetic material and longitudinally crossed by a plurality of stator slots (7); and a stator winding (8) having a plurality of rigid bars (9) that are inserted in corresponding stator slots (7) and that are covered, on the outside, with an insulating coating (14). Each stator slot (7) is completely free from an insulating element interposed between the ferromagnetic material making up the laminations of the magnetic core (6) and the corresponding bars (9), so that an outer surface (18) of the corresponding bars (9) is in direct contact with an inner surface (19) of the stator slot (7) made of the ferromagnetic material.

公开(公告)号：EP4336712A1

公开(公告)日：2024-03-13

申请号：EP23195908.1

申请日：2023-09-07

申请人： FERRARI S.p.A.

发明人： FERRARA, Davide ,  FAVERZANI, Paolo ,  ALLIO, Enrico ,  POGGIO, Luca

IPC分类号： H02K3/52 ,  H02K3/28

摘要： Three-phase stator winding (12) of a rotary electric machine (1) and having: a plurality of coils (8) each of which has two opposite ends (10, 11); a plurality of first connection bridges (13), each of which defines a star connection of three coils (8) and constitutes a star centre of the three coils (8) by connecting a first end (10) of each of the three coils (8) to one another; and three second connection bridges (14, 15, 16) which define a parallel connection of the star connections, are each provided with a corresponding pin (17) defining a terminal of the three-phase stator winding (12) towards the outside, and each of which connects a second end (11) of a respective coil (8) of each star connection to one another. Each second connection bridge (14, 15, 16) has a seamless circular shape closed onto itself.

公开(公告)号：EP4135164A1

公开(公告)日：2023-02-15

申请号：EP22189063.5

申请日：2022-08-05

申请人： FERRARI S.p.A.

发明人： FERRARA, Davide ,  FAVERZANI, Paolo ,  POGGIO, Luca

IPC分类号： H02K1/2783 ,  H02K1/28 ,  H02K7/00 ,  H02K7/04

摘要： A rotor (4) for a rotary electric machine (1) and having: a plurality of permanent magnets (6), which are axially oriented and are arranged beside one another around a rotations axis (3) so as to form a closed ring; a support cylinder (8), which has an outer surface (9), on which the permanent magnets (6) rest, and a central cavity (12); and two half-shafts (10, 11), which are independent of and separate from one another and are singularly inserted in opposite ends of the central cavity (12) of the support cylinder (8) so as to form one single block with the support cylinder (8). The permanent magnets (6) are circumferentially arranged one following the other according to a Halbach array so as to nullify the magnetic field radially on the inside of the permanent magnets (6) and so as to maximize the magnetic field radially on the outside of the permanent magnets (6).

公开(公告)号：EP3872965A3

公开(公告)日：2021-12-22

申请号：EP21155374.8

申请日：2021-02-05

申请人： FERRARI S.p.A.

发明人： FERRARA, Davide ,  POGGIO, Luca ,  FAVERZANI, Paolo

IPC分类号： H02K1/27 ,  H02K1/30 ,  H02K1/32 ,  H02K1/28 ,  H02K5/04 ,  H02K5/18 ,  H02K5/24 ,  H02K9/06 ,  H02K21/14

摘要： Electric machine (1) having: a shaft (2); a rotor (4) with permanent magnets that is fitted to the shaft (2); a stator (5) having a magnetic core (6) which consists of a series of laminations made of ferromagnetic material and longitudinally crossed by a plurality of stator slots (7); and a stator winding (8) having a plurality of rigid bars (9) that are inserted in corresponding stator slots (7) and that are covered, on the outside, with an insulating coating (14). The rotor (4) has a plurality of magnetic elements (22), which are arranged beside one another around the rotation axis (3) so as to form a closed ring. Each magnetic element (22) is formed by a plurality of permanent magnets (23) which are axially arranged one after the other according to a Halbach array.

公开(公告)号：EP3863153A1

公开(公告)日：2021-08-11

申请号：EP21155604.8

申请日：2021-02-05

申请人： FERRARI S.p.A.

发明人： FERRARA, Davide ,  POGGIO, Luca ,  FAVERZANI, Paolo

IPC分类号： H02K3/12 ,  H02K21/14

摘要： An electric machine (1) having: a shaft (2); a rotor (4) with permanent magnets (23), which is fitted to the shaft (2); a stator (5) having a magnetic core (6), which consists of a series of laminations made of a ferromagnetic material and is longitudinally crossed by a plurality of stator slots (7); and a stator winding (8) having a plurality of rigid bars (9), which are inserted in corresponding stator slots (7) and are covered, on the outside, with an insulating coating (14). Each stator slot (7) has a rectangular cross section having a long side (12) arranged radially and a short side (13) arranged circumferentially. Each stator slot (7) houses eight bars (9) lined up one behind the other. Each bar (9) has a rectangular cross section having a long side (12) parallel to the short side (13) of the corresponding stator slot (7) and a short side (13) parallel to the long side (15) of the corresponding stator slot (7). In each bar (9), the ratio between the long side (12) and the short side (13) of the rectangular cross section is greater than 2. Main figure: figure 2

公开(公告)号：EP4376271A1

公开(公告)日：2024-05-29

申请号：EP23211695.4

申请日：2023-11-23

申请人： FERRARI S.p.A.

发明人： FERRARA, Davide ,  FAVERZANI, Paolo ,  POGGIO, Luca

IPC分类号： H02K7/00 ,  H02K11/33 ,  H02K5/10 ,  H02K15/14 ,  G01M3/02 ,  G01M3/26 ,  H02K16/00 ,  B60K1/02

CPC分类号： B60K1/02 ,  H02K5/10 ,  H02K7/003 ,  H02K7/006 ,  H02K16/00 ,  H02K15/14 ,  G01M3/025 ,  H02K2205/0920130101 ,  H02K11/33 ,  G01M3/3272

摘要： An electric machine (2) for motor vehicles has a casing (8) defining at least one chamber accommodating electric/electronic components (17, 30); the rotor of the electric machine (2) has a shaft (20) provided with a first and a second end portion (21, 26), axially opposite one another; the first end portion (21) is configured so as to define a coupling point, at an axial end of the electric machine (2), to transmit motion; at the axial opposite end, the electric machine (2) is closed by a lid (37) having an outer annular portion (38) coupled to the casing (8) through the interposition of at least one gasket (39, 35); the shaft (20) has a through hole (50) with an input mouth (51a) at the first end portion (21) and an output mouth (51b) communicating with the above-mentioned chamber (29a); in a testing method for testing the sealing of the gasket (39, 35), pressurised air is blown through this input mouth (51a) .