| 摘要 |
Propulsion unit (8) for an electric pedal assisted cycle (EPAC) comprising an electric machine (12) having a stator (14) and a rotor (16), rotatable about a motor axis (M-M), said rotor (16) being operatively connected to a crank pin (18), defining a crank axis (X-X), mechanically connected to the pedals (20), wherein the propulsion unit (8) comprises at least an electronic unit (32) for operating and controlling the functioning of the electric machine (12), wherein the propulsion unit (8) comprises at least a pair of housings (24,26) defining a containment space (28) which houses the electric machine (12) and at least partially the crank pin (18), wherein the propulsion unit (8) comprises transmission means (36) of the motion from the rotor (16) to the crank pin (18), wherein the electronic unit (32) is contained and supported inside said containment space (28) by an intermediate support element (40), said intermediate support element (40) being in contact with at least one of said housings (24,26) so as to dissipate the heat through these to the outside of the propulsion unit (8). |
