MOUNTING STRUCTURE FOR VEHICLE BATTERY BOX

• US 20110315464A1
• Filed: 06/08/2011
• Published: 12/29/2011
• Est. Priority Date: 06/25/2010
• Status: Active Grant

• Current Assignee: Subaru Corp.
• Original Assignee: Fuji Heavy Industries Limited (Subaru Corp.)
• Inventors: Yokoyama, Yutaka, Tanaka, Hiroyuki, Inakoshi, Kenji, Yamada, Arihiro, Fujitani, Takaaki
• Granted Patent: US 8,616,319 B2
• 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 2001/0416 Arrangement in the rear part of the vehicle
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60Y 2306/01 Reducing damages in case of crash, e.g. by improving battery protection
• CPC Class Codes: B60Y 2400/61 Arrangements of controllers for electric machines, e.g. inverters
• CPC Class Codes: H01M 50/204 Racks, modules or packs for multiple batteries or multiple cells
• 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: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

In a mounting structure for a vehicle battery box, a battery box is supported in a suspended manner between left and right rear side frames at the rear of a vehicle with first and second cross members that are installed between the left and right rear side frames. The first cross member is fixed at a substantially front end of a rear deformation zone that is set at the left and right rear side frames. High-voltage equipment is fixed between the first and second cross members on the top surface of the right rear side frame. The battery box is electrically connected to the high-voltage equipment with a connecting member.

Claims

1. A mounting structure for a vehicle battery box comprising:

a battery box that houses a battery;

left and right rear side frames at the rear of a vehicle;

a rear deformation zone that is set at the left and right rear side frames and deformed by an input of a predetermined impact force from the rear;

a first cross member that is installed at a substantially front end of the rear deformation zone A between the left and right rear side frames and supports the battery box;

high-voltage equipment that is disposed ahead of the position of the first cross member; and

a connecting member that is electrically connected to the high-voltage equipment and the battery box, and is cut by a change in the relative position of the battery box to the high-voltage equipment.

2. The mounting structure for a vehicle battery box according to claim 1, wherein a second cross member is provided that is installed at a position ahead of the first cross member between the left and right rear side frames and supports the battery box together with the first cross member, and the high-voltage equipment is disposed between the first and second cross members on either of the left and right rear side frames.

3. The mounting structure for a vehicle battery box according to claim 1, wherein a cutting member for cutting the connecting member by the forward movement of the first cross member is provided at a position where the first cross member and the connecting member face with each other.

4. The mounting structure for a vehicle battery box according to claim 1, wherein a second cross member is provided that is installed at a position ahead of the first cross member between the left and right rear side frames and supports the battery box together with the first cross member, and the high-voltage equipment is disposed ahead of the position of the second cross member.

5. The mounting structure for a vehicle battery box according to claim 1, wherein the connecting member is provided with a negative-side connecting wire that is connected to a negative electrode of the battery, a positive-side connecting wire that is connected to a positive electrode of the battery, a power supply wire for feeding electricity to an excitation circuit that makes a relay contact interposed on at least one of the negative-side connecting wire or the positive-side connecting wire in a connection state by feeding electricity.

6. The mounting structure for a vehicle battery box according to claim 5, wherein the negative-side connecting wire and the positive-side connecting wire are formed with a flexible connecting wire, while the power supply wire is formed with an inflexible wire.