BATTERY PACK FOR ELECTRIC VEHICLE

• US 20140262573A1
• Filed: 11/09/2012
• Published: 09/18/2014
• Est. Priority Date: 11/14/2011
• Status: Abandoned Application

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Ito, Kosuke, Katayama, Goichi, Yamamoto, Koichi
• Application Number:
  US14/353,715
• Publication Number:
  US 20140262573A1
• Time in Patent Office: Days
• US Class Current: 180/68.5
• CPC Class Codes: B60K 1/04 of the electric storage means for propulsion exchanging batteries for electric propulsion of vehicles B60L53/80; for auxiliary purposes only B60R16/04; supplying batteries to, or removing batteries from, vehicles B60S5/06
• CPC Class Codes: B60K 11/06 with air cooling
• CPC Class Codes: B60K 2001/005 the electric storage means
• CPC Class Codes: B60K 2001/0438 Arrangement under the floor
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

In a battery pack for an electric vehicle, since a cooling air suction port of a suction duct that sucks cooling air into a cooling passage formed in an interior of a battery case is disposed between a vehicle compartment and the battery case beneath the vehicle compartment, the cooling air suction port can be disposed at a relatively high position, and due to it being covered by the battery case and the vehicle compartment , it can be made difficult for dirt or water splashed up from below by a wheel or dirt or water falling from above to be sucked from the cooling air suction port into the battery case.

Claims

1-7. -7. (canceled)

8. A battery pack for an electric vehicle, comprising a battery case (24) that houses a plurality of batteries (42) and is disposed beneath a vehicle compartment (25), a cooling air suction member (48) that sucks cooling air into a cooling passage formed in an interior of the battery case (24), and a cooling air discharge member (49) that discharges cooling air from the cooling passage, wherein

the cooling air suction member (48) has a cooling air suction port (48a) disposed between the battery case (24) and the vehicle compartment (25) and opening so as to face toward the front of a vehicle body, and the cooling air discharge member (49) has a cooling air discharge port (49a) opening so as to face toward the rear of the vehicle body and outward in a vehicle width direction.

9. A battery pack for an electric vehicle, comprising a battery case (24) that houses a plurality of batteries (42) and is disposed beneath a vehicle compartment (25), a cooling air suction member (48) that sucks cooling air into a cooling passage formed in an interior of the battery case (24), and a cooling air discharge member (49) that discharges cooling air from the cooling passage, wherein

the cooling air suction member (48) has a cooling air suction port (48a) disposed between the battery case (24) and the vehicle compartment (25) and opening so as to face toward the front of a vehicle body, the cooling air discharge member (49) has a cooling air discharge port (49a) opening so as to face toward the rear of the vehicle body, the battery case (24) comprises a projecting portion (39a) that protrudes upwardly toward the vehicle compartment (15), and the cooling air suction member (48) is disposed to the rear of the projecting portion (39a).

10. A battery pack for an electric vehicle, comprising a battery case (24) that houses a plurality of batteries (42) and is disposed beneath a vehicle compartment (25), a cooling air suction member (48) that sucks cooling air into a cooling passage formed in a interior of the battery case (24), and a cooling air discharge member (49) that discharges cooling air from the cooling passage, wherein

the cooling air suction member (48) has a cooling air suction port (48a) disposed between the battery case (24) and the vehicle compartment (25) and opening so as to face toward the front of a vehicle body, the cooling aid discharge member (49) has a cooling air discharge port (49a) opening so as to face toward the rear of the vehicle body, and the cooling air suction member (48) is disposed in an upper part of a rear end of the battery case (24).

11. The battery pack for an electric vehicle according to any one of claim 8 to claim 10, wherein the vehicle comprises a suspension system (59) for suspension of wheels, a virtual line that is perpendicular to an open end face of the cooling air discharge port (49a) intersecting the suspension system (59) when seen in a plan view.

12. The battery pack for an electric vehicle according to any one of claim 8 to claim 10, wherein the cooling air discharge port (49a) opens on an outer periphery of a cooling fan (47) that is housed in an interior of the cooling air discharge member (49), an open end face of the cooling air discharge port (49a) being inclined relative to a plane that is perpendicular to the direction in which the cooling fan (47) blows.

13. The battery pack for an electric vehicle according to claim 12, wherein two fan casings (58) for the cooling fans (47) individually housed in the interiors of two of the cooling air discharge members (49) that are disposed apart in the vehicle width direction are interchangeable members having an identical shape.