The electrical drive of vehicles is not optimally achieved.

The invention relates to a wheel (10) having a drive unit for a vehicle, in particular for a motor scooter (1), a quad bike, or a passenger automobile, wherein the wheel (10) comprises the following: an inner ring (20) formed as a stator, which is connected to a wheel suspension (15) of the wheel (10); a rim ring (30) formed as a rotor having an axis of rotation (33), wherein the rim ring (30) revolves externally around the inner ring (20) and the axis of rotation (33) and the mounting axis (23) extend at least substantially parallel to one another,

wherein the wheel suspension (15) is arranged spaced apart acentrically from the axis of rotation (33).

In an armature coil according to the present invention and, more particularly, in an armature coil including a plurality of coil conductors wound around a plurality of slots which are formed in a stator core and opened on the radially inner side, the circumferential width of the plurality of the coil conductors is formed in a substantially trapezoidal shape which gets narrower toward the radially inner side and the cross-sectional areas of the plurality of the coil conductors in the slot are each substantially the same and the circumferential width thereof is formed narrower as the coil conductor is arranged toward the radially inner side; and one coil conductor is formed in a convex shape and another coil conductor is formed in a concave shape along the convex shape.

A method is provided for fabricating an insulated metal coil for an electrical machine. The method includes 3D printing a metal coil having a plurality of turns. The method further includes subsequently infiltrating insulating material between the turns of the metal coil to electrically insulate the turns from each other.

Lightweight high-efficiency, high temperature electric drive system is disclosed herein. An example electric drive system including an electric motor including an output shaft. The example electric drive system including power electronics electrically coupled to the electric motor, wherein the power electronic include an inverter. The example electric drive system including a gearbox coupled to the output shaft. The example electric drive system including a first heat exchanger coupled to a surface of the electric motor, the first heat exchanger including coolant. The example electric drive system including a second heat exchanger coupled to a surface of the power electronics, the second heat exchanger including the coolant.

The present invention is a coreless coil characterized in that a plurality of -winding coils are formed by a first coil layer and a second coil layer that has a same shape and a same width as the first coil, each coil layer having a center opening, being laminated together. Each outer peripheral portion in a connection direction of the plurality of -winding coils has a connection stepped portion that is point-symmetric in relation to a center axis line of a Z-axis (the Z-axis being an axis that, in relation to an X-axis that is a center of both connected end portions of the -winding coil and passes through a lamination boundary line of the first coil layer and the second coil layer, is a center of both unconnected end portions of the -winding coil and passes through the lamination boundary surface such as to be orthogonal to the X-axis) of the respective center opening. The plurality of -winding coils are connected in an annular shape in a state in which the connection stepped portions overlap each other and are attached to each other. An object of the present invention is to improve the bonding force of the plurality of -winding coils.

A method for manufacturing a sensor module having a passive electrical component comprises punching a plurality of holes in a first green sheet of a plurality of green sheets, and forming a plurality of channels and a plurality of passageways in a second green sheet of the plurality of green sheets by using a laser on the second green sheet. A metallization paste is printed in the plurality of holes, the plurality of channels, and the plurality of passageways, and the first green sheet and the second green sheet are dried with the metallization paste. The method further comprises aligning, stacking, laminating, and sintering the plurality of green sheets together to create a sintered tile, and separating a plurality of coils of the sintered tile in order to obtain the sensor module.

A dielectric substrate may support conductive traces that form windings for a least one pole of a planar armature of an axial flux machine. At least a portion of the dielectric substrate, which is adapted to be positioned within an annular active area of the axial flux machine, may include a soft magnetic material. Such a planar armature may be produced, for example, by forming the conductive traces on the dielectric substrate, and filling interstitial gaps between the conductive traces with at least one epoxy material in which the soft magnetic material is embedded.

A stator winding includes a plurality of conductors including ducts. The ducts can be connected to a heat pipe or a conduit providing a coolant flow to directly cool the winding. The heat pipe can be connected to a heat exchanger that includes a coolant flow. The stator winding can be produced using additive manufacturing, with hollow ducts extending through leg sections and solid end sections. The heat exchanger can also be additively manufactured. A circuit for driving an electrical machine can be in thermal communication with the heat exchanger, such that the thermal system manages both the stators and the drive circuit.

Provided is a method of manufacturing a voice coil, and more particularly, a method of manufacturing a voice coil in which a coil pattern is formed on a wafer level package. The method includes (a) forming a first coil pattern including a first area in which a first seed metal layer is exposed upward, a second area in which a first passivation layer for forming a via hole in the first area is formed, and a third area in which a first photoresist layer is formed in a portion of the first area and the second area on an upper surface of a wafer, (b) filling an inside of the via hole formed in the first coil pattern with a conductive material and forming first coil windings, and (c) removing the first photoresist layer formed in the third area.

A method for producing an electrically conductive component having a cavity is described. An efficient production method for such a component, which allows a high variability of the wall thickness of the component, is implemented by applying a load-bearing layer consisting of an electrically conductive material to a soluble substrate and then dissolving and at least partially removing the substrate.