Abstract: An electrical machine may include a rotor rotatable about a rotation axis defining an axial direction of the electrical machine, and a stator having stator windings, and a coolant distributor chamber and a coolant collector chamber arranged axially at a distance therefrom, wherein the coolant distributor chamber may communicate fluidically with the coolant collector chamber via at least one cooling channel through which a coolant may be flowable to cool the stator windings, wherein at least one stator winding may be embedded into a plastic composition composed of an electrically insulating plastic. At least one of the coolant distributor chamber and the coolant collector chamber may be arranged in a region of at least one of a first and a second axial end section of at least one stator winding, and may arranged at least partly in the plastic composition for thermal coupling to the at least one stator winding.

Abstract: An electrical machine may include a comprise a rotor, a stator, a coolant distributor chamber and a coolant collector chamber. The rotor may be rotated about an axis of rotation that defines an axial direction of the electrical machine. The stator may comprise a plurality of stator windings. The coolant collector chamber may be axially arranged at a distance from the coolant distributor chamber. The coolant distributor chamber may communicate fluidically with the coolant collector chamber by way of least one cooling channel through which a coolant can flow. The at least one cooling channel and the at least one stator winding may be embedded in a plastic mass consisting of an electrically insulating plastic for thermal coupling to the coolant.

Abstract: A method for producing a stator for an electrical machine includes providing the stator including a ring-shaped stator body, from which a plurality of stator teeth arranged spaced apart along a circumferential direction of the stator body protrude radially to the inside. A space is thereby provided between two stator teeth adjacent to one another in the circumferential direction. Second, a first injection molding of two stator teeth adjacent to one another in the circumferential direction with a plastic is performed. Third, a stator winding is arranged in the space. Fourth, a second injection molding of the stator winding arranged in the space with the plastic is performed such that an air gap and/or an air trap between the stator teeth injection molded in the second step and the stator winding after the arrangement of the stator winding in the space in the third step, is filled with the plastic.

Abstract: An insulating body for an electric machine includes outer walls of a plastic, which delimit a body interior. In the body interior, at least one winding zone for receiving a stator winding and at least one passage zone for receiving a cooling passage are provided.

Abstract: An electrical machine may include a rotor rotatable about an axis of rotation, by way of which an axial direction of the electrical machine may be defined, a stator having electrically conductive stator windings, and at least one cooling channel through which a coolant may be flowable for cooling the stator windings. The stator may have stator teeth extending along the axial direction, arranged spaced apart from another along a circumferential direction of the rotor, and bearing the stator windings. The at least one cooling channel and at least one stator winding may be arranged in at least one intermediate space formed between two stator teeth adjacent in the circumferential direction. A plastic for transferring heat from the at least one stator winding to the at least one cooling channel may be arranged in the at least one intermediate space.

Abstract: The invention relates to an insulation body (100) for an electrical machine (1). The insulation body (100) comprises outer walls (101a, 101b, 101c, 101d) composed of a plastic (K), which delimit a body interior (104). At least one winding zone (106a, 106b) for receiving a stator winding (6) and at least one channel zone (107a, 107b) for receiving a cooling channel (10) are provided in the body interior (104).

Abstract: A method for producing a stator for an electrical machine may first include providing a stator having a ring-shaped stator body, from which a plurality of stator teeth arranged spaced apart from one another along a circumferential direction of the stator body, for accommodating stator windings, protrude, wherein a space, in each case, may be embodied between two stator teeth adjacent in the circumferential direction. The method then may include first injection molding at least two stator teeth, which are adjacent in the circumferential direction, with a plastic, arranging at least one stator winding in the space between the at least two stator teeth, and second injection molding the stator winding with the plastic, so that at least one of an air gap and an air trap formed between the at least two stator teeth first injection molded and the stator winding is filled with the plastic.

Abstract: An electrical machine for a vehicle includes a rotor, which can be rotated about an axis of rotation, by which an axial direction of the electrical machine is defined, a stator with stator windings; and a cooling channel, or a plurality of cooling channels, through which a coolant flows. The stator has stator teeth, which extend along the axial direction and are spaced apart from each other along a circumferential direction and which bear the stator windings. At least one stator winding is embedded in an electrically insulating plastic for thermal coupling, the electrically insulating plastic is arranged, together with the at least one stator winding, in an intermediate space, which is formed between two stator teeth adjacent in the circumferential direction, and the electrically insulating plastic is formed by a first plastic mass of a first plastic material and a second plastic mass of a second plastic material.

Abstract: A heat sink with incorporated pin fin arrangement means is preferably part of a cooling jacket assembly, used for cooling the electric machine assembly. In general, the cooling jacket assembly comprises an annular cooling jacket body (i.e. a heat sink (4)) preferably adapted for receiving a stator (3) of the electric machine. In addition, the heat sink (4) of a cooling jacket comprises at least one substantially cylindrical wall section with at least one group of incorporated unidirectional heat transfer protuberances (i.e. pin fin (42) arrangement in free-form formation), wherein the heat sink (4) in cooperation with the electric machine assembly forms an annular gap (i.e. a cooling channel) preferably adapted for coolant flow circulation. The heat sink (4) according to the invention is preferably casted or molded as one body part in a single operation; hence the cost effective solution of high performance heat sink (2) is achieved.

Abstract: A pin fin cooling system may include at least one first surface defining at least a base portion of the cooling system, and at least one pin fin array of a plurality of pin fins and at least one coolant fluid flow detector extending from the first surface. The coolant fluid flow deflector may be configured to split a coolant fluid flow from a primary flow into at least two secondary flows that follow a predetermined path over local heat sources, and may have a maximum wall thickness that is equal to a diameter of a cross-section of one of the pin fins. The cooling system may further include at least one boundary fin extending from the first surface that is in the shape of a spline, at least a portion of which may correspond and match at least a portion of a pattern of the pin fin array.

Abstract: A hand guard apparatus mounted onto the handle bars of a vehicle for protecting the hand of a user of the vehicle as the user grips the handle bars. The hand guard apparatus includes a bracket that includes an orifice, a pivot bolt substantially cylindrical in shape, the pivot bolt arranged in the orifice, a body portion connected to the bracket, and a pivot bolt fastener configured to retain the pivot bolt and the bracket.

Abstract: A heat sink with incorporated pin fin arrangement means is preferably part of a cooling jacket assembly, used for cooling the electric machine assembly. In general, the cooling jacket assembly comprises an annular cooling jacket body (i.e. a heat sink (4)) preferably adapted for receiving a stator (3) of the electric machine. In addition, the heat sink (4) of a cooling jacket comprises at least one substantially cylindrical wall section with at least one group of incorporated unidirectional heat transfer protuberances (i.e. pin fin (42) arrangement in free-form formation), wherein the heat sink (4) in cooperation with the electric machine assembly forms an annular gap (i.e. a cooling channel) preferably adapted for coolant flow circulation. The heat sink (4) according to the invention is preferably casted or molded as one body part in a single operation; hence the cost effective solution of high performance heat sink (2) is achieved.

Abstract: A pin fin cooling system may include at least one first surface defining at least a base portion of the cooling system, and at least one pin fin array of a plurality of pin fins and at least one coolant fluid flow detector extending from the first surface. The coolant fluid flow deflector may be configured to split a coolant fluid flow from a primary flow into at least two secondary flows that follow a predetermined path over local heat sources, and may have a maximum wall thickness that is equal to a diameter of a cross-section of one of the pin fins. The cooling system may further include at least one boundary fin extending from the first surface that is in the shape of a spline, at least a portion of which may correspond and match at least a portion of a pattern of the pin fin array.