VEHICULAR POWER SUPPLY SYSTEM

• US 20100273040A1
• Filed: 11/18/2008
• Published: 10/28/2010
• Est. Priority Date: 11/21/2007
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Kubota, Shinya, Kawata, Masao
• Granted Patent: US 8,372,530 B2
• Time in Patent Office: Days
• US Class Current: 429/100
• 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 2001/0416 Arrangement in the rear part of the vehicle
• CPC Class Codes: B60K 2001/0438 Arrangement under the floor
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 10/643 Cylindrical cells
• CPC Class Codes: H01M 10/6563 with forced flow, e.g. by blowers
• CPC Class Codes: H01M 10/6565 with recirculation or U-turn in the flow path, i.e. back and forth
• CPC Class Codes: H01M 10/667 the system being an electronic component, e.g. a CPU, an inverter or a capacitor
• CPC Class Codes: H01M 50/24 adapted for protecting batteries from their environment, e.g. from corrosion thermal insulation H01M10/658
• CPC Class Codes: H01M 50/242 adapted for protecting batteries against vibrations, collision impact or swelling
• CPC Class Codes: H01M 50/249 specially adapted for aircraft or vehicles, e.g. cars or trains constructional details of batteries specially adapted for electric vehicles B60L50/64
• CPC Class Codes: H01M 50/271 Lids or covers for the racks or secondary casings
• CPC Class Codes: H01M 6/5038 Heating or cooling of cells or batteries
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

In a vehicular power supply system, inclined portions (16c) extending obliquely upward toward the exterior from two mutually opposing side edges of a waterproof case (14) are formed on a hanger frame (16), and an upper face opening (14b) of the waterproof case (14) and an outer peripheral part of a lid member (15) are equipped with extended portions (14a, 15a) extending upward so as to cover the inclined portion (16c) of the hanger frame (16). This enables water flowing on an upper face of the lid member (15) or water that has accumulated on the upper face of the lid member (15) to be blocked by the extended portions (14a, 15a) and to be prevented from entering the interior of the waterproof case (14) via an outer peripheral face of the hanger frame (16) running through mating faces of a lid member (15) and the waterproof case (14) housing a battery module (24) and a high voltage electrical component (33).

Claims

1. A vehicular power supply system comprising:

a waterproof case (14) housing at least a battery module (24) or an electrical component (33);

a lid member (15) covering an upper face opening (14b) of the waterproof case (14); and

a hanger frame (16) having a longitudinally intermediate section held between the upper face opening (14b) of the waterproof case (14) and an outer peripheral part of the lid member (15) in order to hangingly support the waterproof case (14),

characterized in that inclined portions (16c) extending obliquely upward or obliquely downward toward the exterior from two mutually opposing side edges of the waterproof case (14) are formed on the hanger frame (16), and

the upper face opening (14b) of the waterproof case (14) and the outer peripheral part of the lid member (15) are equipped with an extended portion (14a, 15a) extending obliquely upward or obliquely downward along the hanger frame (16) so as to cover the inclined portion (16c) of the hanger frame (16).

2. The vehicular power supply system according to claim 1, wherein the extended portions (14a, 15a) of the waterproof case (14) and the lid member (15) are inclined obliquely upward toward the exterior, and the height of the lower end of the opening of each of the extended portion (14a, 15a) is higher than the height of the upper face of the lid member (15).

3. The vehicular power supply system according to claim 1, wherein a seal member (44) is disposed between the inclined portion (16c) of the hanger frame (16) and the extended portions (14a, 15a) of the waterproof case (14) and the lid member (15).

4. The vehicular power supply system according to any one of claim 1, wherein an outer peripheral part of the lid member (15) is equipped with an outside flange (15b, 15d) bent downwardly in a section other than the extended portion (15a), and the lower end of the outside flange (15b, 15d) is positioned lower than the upper face opening (14b) of the waterproof case (14).

5. The vehicular power supply system according to claim 4, wherein the upper face opening (14b) of the waterproof case (14) is equipped with an inside flange (14c) bent downwardly in a section other than the extended portion (14a), and the lower end of the outside flange (15b, 15d) is positioned lower than the lower end of the inside flange (14c).

6. The vehicular power supply system according to claim 5, wherein the lower end of the outside flange (15b) is equipped with a bent portion (15e) bent toward the waterproof case (14) side.

7. The vehicular power supply system according to claim 1, wherein the lid member (15) is inclined in a direction perpendicular to the orientation of the hanger frame (16), and a protruding portion (15c) is formed along a side on the higher side of the lid member (15).

8. The vehicular power supply system according to claim 7, wherein the waterproof case (14) is disposed in a vehicle body rear part, the upper face of the lid member (15) is inclined so that the vehicle body rear side is lower, and the outside flange (15d), on the vehicle body rear side, of the lid member (15) extends to the vicinity of a lower end part of the waterproof case (14).

9. The vehicular power supply system according to claim 1, wherein the upper face of the lid member (15) includes a flat portion (15f) receiving water, a plurality of bead portions (15g) protruding upwardly from the flat portion (15f), and a protruding portion (15c) that, among outer peripheral edges of the lid member (15), is along the outer peripheral edge on one end side, and a discharge route for discharging water received by the flat portion (15f) is arranged by forming an outlet (15i), which communicates with a space (49) provided between the waterproof case (14) and a floor panel (11), in at least part of the outer peripheral edge, other than a section where the protruding portion (15c) of the lid member (15), in the flat portion (15f) is formed.