Supply unit

1. Supply unit ( 1 ) for an electric motorbike ( 2 ) comprising at least two electric batteries ( 6 , 7 , 8 , 9 ) and at least a protection container ( 10 , 11 , 12 ) which contains said batteries ( 6 , 7 , 8 , 9 ), wherein said container ( 10 , 11 , 12 ) comprises:

at least a cooling plate ( 12 ) placed in contact with said batteries ( 6 , 7 , 8 , 9 ) and having:

a plurality of through holes ( 13 ) which communicate directly with the ambient and which cross said cooling plate ( 12 ) in the direction of its width and/or its length, each of said holes ( 13 ) having an access on a first perimeter side ( 12 a ) of said cooling plate ( 12 ) and an exit on an opposite second perimeter side ( 12 b ) of said cooling plate ( 12 ); and

two opposite transmission faces ( 17 , 18 ) in contact with which are placed one or more batteries ( 6 , 7 , 8 , 9 ), between said faces ( 17 , 18 ) being obtained said through holes ( 13 );

at least two cooling half-shells ( 10 , 11 ), each containing at least one of said batteries ( 6 , 7 , 8 , 9 ) and placed in contact with said batteries ( 6 , 7 , 8 , 9 ), said half-shells ( 10 , 11 ) being separated from said cooling plate ( 12 ) and joined to said cooling plate ( 12 ) in correspondence of said transmission faces ( 17 , 18 ).

2. Unit ( 1 ) according to claim 1 , wherein said cooling plate ( 12 ) supports said batteries ( 6 , 7 , 8 , 9 ).

3. Unit ( 1 ) according to claim 2 , wherein said cooling plate ( 12 ) has at least a bracket ( 14 , 15 ) which supports at least one of said batteries ( 6 , 7 , 8 , 9 ).

4. Unit ( 1 ) according to claim 1 , wherein said holes ( 13 ) are rectilinear and parallel to each other.

5. Unit ( 1 ) according to claim 1 , wherein said cooling plate ( 12 ) includes at least one cooling part ( 22 , 23 , 24 ) having said holes ( 13 ) and at least a structural part ( 25 , 26 , 27 ) with greater mechanical resistance than said cooling part ( 22 , 23 , 24 ).

6. Unit ( 1 ) according to claim 5 , wherein:

said cooling plate ( 12 ) has at least a bracket ( 14 , 15 ) which supports at least one of said batteries ( 6 , 7 , 8 , 9 ); and

said at least one bracket ( 14 , 15 ) is associated with said at least one structural part ( 25 , 26 , 27 ).

7. Unit ( 1 ) according to claim 1 , wherein said half-shells ( 10 , 11 ) have at least a finned external surface ( 20 , 21 ) for cooling.

8. Unit ( 1 ) according to claim 1 , wherein said half-shells ( 10 , 11 ) internally define one or more compartments in which a power supply and charge circuitry ( 34 , 35 , 40 ) for the batteries ( 6 , 7 , 8 , 9 ) is fully contained.

9. Unit ( 1 ) according to claim 1 , wherein said half-shells ( 10 , 11 ) have respective opening edges ( 10 a , 11 a ) and are associable with said cooling plate ( 12 ) with said opening edges ( 10 a , 11 a ) arranged substantially in correspondence of the perimeter of said transmission faces ( 17 , 18 ).

10. Electric motorbike ( 2 ) wherein said motorbike ( 2 ) comprises a supply unit ( 1 ) according to claim 1 .

11. Motorbike ( 2 ) according to claim 10 , wherein said unit ( 1 ) is mounted on said motorbike ( 2 ) oriented with said cooling plate ( 12 ) arranged vertically and said holes ( 13 ) arranged parallel to the longitudinal axis of said motorbike ( 2 ).