Drive unit for an electrical vehicle, which drive unit comprises an electric motor including a winding, comprising a winding terminal. The drive unit further comprises an inverter having an inverter housing, and an inverter circuit provided within the inverter housing. The inverter circuit comprising an inverter terminal, wherein the winding terminal and the inverter terminal are directly connected to each other.

The present disclosure provides distributed drive systems and methods of use thereof A distributed drive system may comprise one or more coils, one or more magnets, and at least one tread. A method for a distributed drive system may comprise the utilization of a plurality of voltage phases. The coils may comprise conductive wiring wrapped in a predefined form. In some embodiments, the coils may alternate in polarity. In some implementations, the coils may be attached directly to the frame of a larger machine or vehicle for uniform heat distribution. The magnets may comprise composite materials with ferrous portions. When the system comprises at least one tread, magnets may be embedded within the tread. In some aspects, the distributed drive system may be contained within a motive system of a machine or vehicle, thereby limiting the need for a transmission between a power source and the motive components of the machine or vehicle.

The present disclosure provides distributed drive systems and methods of use thereof A distributed drive system may comprise one or more coils, one or more magnets, and at least one tread. A method for a distributed drive system may comprise the utilization of a plurality of voltage phases. The coils may comprise conductive wiring wrapped in a predefined form. In some embodiments, the coils may alternate in polarity. In some implementations, the coils may be attached directly to the frame of a larger machine or vehicle for uniform heat distribution. The magnets may comprise composite materials with ferrous portions. When the system comprises at least one tread, magnets may be embedded within the tread. In some aspects, the distributed drive system may be contained within a motive system of a machine or vehicle, thereby limiting the need for a transmission between a power source and the motive components of the machine or vehicle.

In a fuel injection device, a driving unit structure has a magnetic aperture, in which an inner diameter is gradually enlarged toward the mover side, provided in an inner peripheral surface of the magnetic core. It is possible to reduce magnetic delay time upon valve opening from the supply of the electric current to the coil to the rise of magnetic flux and magnetic delay time upon valve closing from the stoppage of the electric current to the coil to reduction of magnetic flux, by providing a magnetic aperture in the inner peripheral surface of the magnetic core. Thus it is possible to improve the dynamic responsiveness upon valve opening and valve closing.

The invention relates to an electrotechnical coil, to a method for producing same, and to an electromagnet or an electric machine comprising at least one such coil. The aim of the invention is to produce and use an electrotechnical coil for achieving an increased slot fill factor reliably and easily in a reproducible and economical manner. This is achieved in that the method according to the invention has the steps: step A: casting an electrotechnical coil with at least one winding which runs about a coil axis; and step B: shaping the coil, thereby changing the cross-section Q, Q′ of the at least one winding, such that the centroid FS, FS′ of the cross-section Q, Q′ of the at least one winding is displaced at least partly in the radial direction R relative to the coil axis A.

The invention relates to an electrotechnical coil, to a method for producing same, and to an electromagnet or an electric machine comprising at least one such coil. The aim of the invention is to produce and use an electrotechnical coil for achieving an increased slot fill factor reliably and easily in a reproducible and economical manner. This is achieved in that the method according to the invention has the steps: step A: casting an electrotechnical coil with at least one winding which runs about a coil axis; and step B: shaping the coil, thereby changing the cross-section Q, Q′ of the at least one winding, such that the centroid FS, FS′ of the cross-section Q, Q′ of the at least one winding is displaced at least partly in the radial direction R relative to the coil axis A.

The present invention addresses the problem of providing a winding for an electromagnetic component, a stator for a rotary electric machine, a rotary electric machine, and a wheel, which can simplify an assembly step while improving joint quality of a coil end. This winding for electromagnetic components comprises a first conductor (3) and a second conductor (4) electrically connected to the first conductor (3). The first conductor (3) and the second conductor (4) are fixed inside an electromagnetic component. At least one among the first conductor (3) and the second conductor (4) has a bent section (10). The first conductor (3) is pressed against and makes close contact with the second conductor (4) by a restoring force (12) due to residual stress of the bent section (10).

The present invention addresses the problem of providing a winding for an electromagnetic component, a stator for a rotary electric machine, a rotary electric machine, and a wheel, which can simplify an assembly step while improving joint quality of a coil end. This winding for electromagnetic components comprises a first conductor (3) and a second conductor (4) electrically connected to the first conductor (3). The first conductor (3) and the second conductor (4) are fixed inside an electromagnetic component. At least one among the first conductor (3) and the second conductor (4) has a bent section (10). The first conductor (3) is pressed against and makes close contact with the second conductor (4) by a restoring force (12) due to residual stress of the bent section (10).

An axial flux generator comprising: two magnetic annuli; a coil annulus; the magnetic annuli and coil annulus having a common axis; the two magnetic annuli defining a plurality of magnetic fields around the common axis extending across a gap between the two magnetic annuli and the coil annulus having a sequence of coils around the common axis in the gap such that the lines of magnetic flux from the magnetic fields cut the turns of the coils and this induces electric current in the coils as the magnetic annuli are caused to rotate relative to the coil annulus; wherein each coil has a shape in a plane perpendicular to the common axis where a first position and a second position on the shape are at a radial distance from the common axis that is greater than the radial distance from the common axis of a radially innermost position of the shape by an amount that is at least 60% of the difference in radial distance from the common axis between the radially innermost position and a radially outermost position of the shape and the first position and second position are on opposite sides of the shape at a radial location where the shape has a maximum dimension in a direction perpendicular to the radial direction, and a portion of the shape that is radially outward from the first and second positions is within an area bounded by an inner line and an outer line between the first and second positions, the inner line and the outer line both being radially outward from the first and second positions and having a radius that is 0.625 times the maximum dimension of the shape in the direction perpendicular to the radial direction, and the outer line being longer than the inner line.

An axial flux generator comprising: two magnetic annuli; a coil annulus; the magnetic annuli and coil annulus having a common axis; the two magnetic annuli defining a plurality of magnetic fields around the common axis extending across a gap between the two magnetic annuli and the coil annulus having a sequence of coils around the common axis in the gap such that the lines of magnetic flux from the magnetic fields cut the turns of the coils and this induces electric current in the coils as the magnetic annuli are caused to rotate relative to the coil annulus; wherein each coil has a shape in a plane perpendicular to the common axis where a first position and a second position on the shape are at a radial distance from the common axis that is greater than the radial distance from the common axis of a radially innermost position of the shape by an amount that is at least 60% of the difference in radial distance from the common axis between the radially innermost position and a radially outermost position of the shape and the first position and second position are on opposite sides of the shape at a radial location where the shape has a maximum dimension in a direction perpendicular to the radial direction, and a portion of the shape that is radially outward from the first and second positions is within an area bounded by an inner line and an outer line between the first and second positions, the inner line and the outer line both being radially outward from the first and second positions and having a radius that is 0.625 times the maximum dimension of the shape in the direction perpendicular to the radial direction, and the outer line being longer than the inner line.