Electric vehicle with built-in battery pack

• US 8,733,488 B2
• Filed: 03/11/2013
• Issued: 05/27/2014
• Est. Priority Date: 03/23/2012
• Status: Active Grant

• Current Assignee: Mitsubishi Jidosha Kogya Kabushiki Kaisha
• Original Assignee: Mitsubishi Jidosha Kogyo Kabusiki Kasha
• Inventors: Umetani, Tatsuhiko
• Primary Examiner(s): Walters, John
• Assistant Examiner(s): TRIGGS, JAMES J
• Application Number:
  US13/793,615
• Publication Number:
  US 20130248263A1
• Time in Patent Office: 442 Days
• Field of Search: None
• 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: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• 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 50/673 Containers for storing liquids; Delivery conduits therefor
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

An electric vehicle includes a vehicle body and a battery pack. The vehicle body has in a lower portion thereof a sign showing a specific position to be jacked up. The battery pack is mounted on the lower portion of the vehicle body and includes a bottom wall having a mark showing a position where a liquid draining hole communicating with an inside of the battery pack is to be bored. The mark is disposed at a position lower than the specific position within the vehicle body in a state where the vehicle body is inclined by jacking up the specific position.

Claims

1. An electric vehicle, comprising:

a vehicle body having in a lower portion thereof a sign showing a specific position to be jacked up; and

a battery pack mounted on the lower portion of the vehicle body and including a bottom wall having a mark showing a position where a liquid draining hole communicating with an inside of the battery pack is to be bored in the bottom wall,

wherein the bottom wall extends over the position where the liquid draining hole is to be bored, and

wherein the mark is disposed at a position lower than the specific position within the vehicle body in a state where the vehicle body is inclined by jacking up the specific position.

2. The electric vehicle according to claim 1, wherein

the sign showing the specific position and the mark corresponding to the sign include an indicator including at least one of the same identification symbols and identification colors.

3. The electric vehicle according to claim 2, wherein

the indicator applied to the specific position is a number showing an order for jacking up the specific position, and

the indicator applied to the mark is a number showing an order for boring the liquid draining hole.

4. The electric vehicle according to claim 1, wherein

the specific position and the mark corresponding to the specific position are consecutive numbers showing a procedure for jacking up the specific position and boring the liquid draining hole.

5. The electric vehicle according to claim 1, wherein

the mark includes a boring sign showing a range where the liquid draining hole is allowed to be bored.

6. The electric vehicle according to claim 5, wherein

the boring sign is formed recessed from the bottom wall of the battery pack.

7. The electric vehicle according to claim 5, wherein

the boring sign is filled with a colored soft synthetic resin.

8. The electric vehicle according to claim 5, wherein

the boring sign is filled with phosphorescent synthetic resin.

9. The electric vehicle according to claim 5, wherein

the boring sign includes a center hole configured to catch a tip of a tool for boring the liquid draining hole.

10. The electric vehicle according to claim 9, wherein

the mark includes a rivet mounted onto the center hole so that at least a portion of the rivet is exposed, and

the indicator including at least one of the identification symbols and the identification colors corresponding to the specific position is disposed in the exposed portion of the rivet.

11. The electric vehicle according to claim 1, wherein

the battery pack includes a plurality of battery cells and a case storing the battery cells with a clearance with respect to an outer periphery of the battery cells, and

the liquid draining hole is bored to be communicated with the clearance.

12. The electric vehicle according to claim 11, wherein

the battery pack includes a protection wall interposed between a position where the liquid draining hole is bored and the battery cells.

13. The electric vehicle according to claim 11, wherein

the case includes a bottom surface gradually descending toward the liquid draining hole.