Electric motor, in particular for installation in a wheel body of a motorcycle
OwnerDavid Schooneinventor
Life of this patent
Estimating the term…
Abstract
An electric motor is particularly intended for installation within a wheel hub of a motorcycle. The electric motor is constructed in the manner of a double-sided axial flux electric machine and comprises a liquid-cooled stator and a two-sided rotor with permanent magnets arranged on both sides of the stator. The stator includes a cooling body that in a form-fitting manner accommodates the coils. The cooling body features a cooling core with a plurality of cooling fins, between which the coils are arranged and within which radial channels are formed. The radial channels are interconnected at the radially outer ends of the cooling fins. All radial channels terminate at the radially inner ends of the cooling fins into a distributor channel.
Claims17
An electric motor, comprising:
- a liquid-cooled stator (1), including
- a plurality of coils (10),
- coil cores (12) inserted into the coils (10), and
- a cooling body (14) accommodating the coils (10) in a form-fitting manner;
- and
- a rotor (81) having permanent magnets (71, 72, 73, 74, 75) arranged on both sides of the liquid-cooled stator (1), the rotor (81) being of a double-sided axial flux machine design,
- wherein the cooling body (14) includes a cooling core (16) with a plurality of cooling fins (41),
- wherein the coils (10) are arranged between the cooling fins (41),
- wherein radial channels (43, 44) are formed in pairs side by side in the cooling fins (41), the radial channels (43, 44) being connected to each other at radially outer ends of the cooling fins (41) by axial connection channels (46),
- wherein the radial channels (43, 44) at radially inner ends of the cooling fins (41) open into distributor channels (49, 54),
- wherein the distributor channels (49, 54) are formed in a ring shape in the cooling core (16),
- wherein multiple connection channels (57, 58, 59) are formed for each distributor channel (49, 54) in the cooling core (16) to connect the respective distributor channel (49, 54) to coolant lines (5, 6, 31, 32, 33, 34, 35, 36) of a coolant distributor (110),
- wherein the connection channels (57, 58, 59) are equidistantly spaced apart on the respective distributor channel (49, 54) and open into the distributor channels (49, 54), and
- wherein the radial channels (43, 44), the axial connection channels (46), and the distributor channels (49, 54) are integrated as grooves into outside faces (3, 4) of the cooling core (16).
Dependencies are inferred from the claim text.