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US 11,230,193 B2Granted
Road vehicle with electric drive and power wiring cooling
AssigneeFerrari S.P.A.
InventorFabrizio Favaretto
Life of this patent
Estimating the term…
Abstract
A road vehicle with an electric drive comprising: at least one pair of drive wheels; a reversible electric machine, which can be connected to the drive wheels; an electronic power converter, which controls the electric machine; an electric energy storage system, which is connected to the electronic power converter; first power wirings comprising at least two first electric wires, which connect the electric machine to the electronic power converter; and second power wirings comprising at least two second electric wires, which connect the electronic power converter to the storage system; and a cooling system, which is thermally coupled to at least one power wiring in order to remove heat from the power wiring.
Claims18
A road vehicle (1) with an electric drive comprising:
- at least one pair of drive wheels (3);
- a reversible electric machine (8), which is connected to the drive wheels (3);
- an electronic power converter (13), which controls the electric machine (8);
- an electric energy storage system (14), which is connected to the electronic power converter (13);
- a first power wiring (15) comprising at least two first electric wires (20), which connect the electric machine (8) to the electronic power converter (13);
- a second power wiring (21) comprising at least two second electric wires (26), which connect the electronic power converter (13) to the storage system (14);
- and
- a cooling system (30), which is designed to remove heat and is thermally coupled to at least one power wiring (15;
- 21) in order to remove heat from the power wiring (15;
- 21);
- wherein each electric wire (20, 26) comprises a core (27) made of a conductor material and an insulating jacket (28), which covers the conductor material core (27);
- and
- wherein in the area of the two opposite ends, each electric wire (20, 26) has no insulating jacket (28), thus exposing the conductor material core (27) to which a head (30) is steadily connected, which ensures a connection to a corresponding terminal (17, 19, 23, 25) of a terminal board (16, 18, 22).
10 more elements
A road vehicle (1) with an electric drive comprising:
- at least one pair of drive wheels (3);
- a reversible electric machine (8), which is connected to the drive wheels (3);
- an electronic power converter (13), which controls the electric machine (8);
- an electric energy storage system (14), which is connected to the electronic power converter (13);
- a first power wiring (15) comprising at least two first electric wires (20), which connect the electric machine (8) to the electronic power converter (13);
- a second power wiring (21) comprising at least two second electric wires (26), which connect the electronic power converter (13) to the storage system (14);
- and
- a cooling system (30), which is designed to remove heat and is thermally coupled to at least one power wiring (15;
- 21) in order to remove heat from the power wiring (15;
- 21);
- wherein each electric wire (20, 26) comprises a core (27) made of a conductor material and an insulating jacket (28), which covers the conductor material core (27);
- wherein in the area of the two opposite ends, each electric wire (20, 26) is naked, namely has no insulating jacket (28), thus exposing the conductor material core (27) to which a head (30) is steadily connected, which ensures a connection to a corresponding terminal (17, 19, 23, 25) of a terminal board (16, 18, 22);
- and
- wherein the cooling system (30) is thermally coupled to the sole heads (29) of a corresponding electric wire (20, 26) in order to remove heat from the heads (29).
11 more elements
A road vehicle (1) with an electric drive comprising:
- at least one pair of drive wheels (3);
- a reversible electric machine (8), which is connected to the drive wheels (3);
- an electronic power converter (13), which controls the electric machine (8);
- an electric energy storage system (14), which is connected to the electronic power converter (13);
- a first power wiring (15) comprising at least two first electric wires (20), which connect the electric machine (8) to the electronic power converter (13);
- a second power wiring (21) comprising at least two second electric wires (26), which connect the electronic power converter (13) to the storage system (14);
- at least one terminal board (16, 18, 22, 24) provided with terminals (17, 19, 23, 25) to which at least one corresponding electric wire (20, 26) is connected;
- and
- a cooling system (30), which is designed to remove heat and is thermally coupled to at least one power wiring (15;
- 21) in order to remove heat from the power wiring (15;
- 21);
- wherein the cooling system (30) comprises a cooling circuit (32) where a cooling fluid flows and is provided with a heat exchanger (31), which is thermally coupled to at least one power wiring (15;
- 21) in order to remove heat from the wiring (15;
- 21) and rests against the terminal board (16, 18, 22, 24).
11 more elements
A road vehicle (1) with an electric drive comprising:
- at least one pair of drive wheels (3);
- a reversible electric machine (8), which is connected to the drive wheels (3);
- an electronic power converter (13), which controls the electric machine (8);
- an electric energy storage system (14), which is connected to the electronic power converter (13);
- a first power wiring (15) comprising at least two first electric wires (20), which connect the electric machine (8) to the electronic power converter (13);
- a second power wiring (21) comprising at least two second electric wires (26), which connect the electronic power converter (13) to the storage system (14);
- and
- a cooling system (30), which is designed to remove heat and is thermally coupled to at least one power wiring (15;
- 21) in order to remove heat from the power wiring (15;
- 21);
- wherein the cooling system (30) comprises a refrigeration circuit (35), which contains a refrigerant fluid and comprises, in turn, a compressor (36), a condenser (37), an expansion valve (38) and at least one evaporation organ, which is thermally coupled to at least one power wiring (15;
- 21) in order to remove heat from the wiring (15;
- 21).
10 more elements
Dependencies are inferred from the claim text.