BATTERY MOUNTING STRUCTURE FOR VEHICLE

• US 20170305249A1
• Filed: 04/14/2017
• Published: 10/26/2017
• Est. Priority Date: 04/21/2016
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: HARA, Yasuhiro
• Granted Patent: US 10,207,573 B2
• Time in Patent Office: Days
• 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 2001/0438 Arrangement under the floor
• 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: B62D 25/20 Floors or bottom sub-units sub-frames for mounting engine or suspensions B62D21/11; drip trays F16N31/006
• CPC Class Codes: B62D 25/2036 the subunits being side panels, sills or pillars B62D21/157 takes precedence
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H01M 50/209 adapted for prismatic or rectangular cells H01M50/216 takes precedence
• 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 50/264 for cells or batteries, e.g. straps, tie rods or peripheral frames
• 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

A battery mounting structure for maintaining a sufficient passenger compartment in vehicles is provided. The battery mounting structure comprises a pair of longitudinal side sills (11, 12), and a battery pack (7) disposed between the side sills (11, 12). A plurality of battery modules (9) are juxtaposed in a casing (8) of the battery pack (7). A linear depression (39) protrudes downwardly from a reinforcement member (15) situated underneath a floor panel (17) supported by the side sills (11, 12), and the battery pack (7) has a linear depression (38) hold the linear depression (39) therein.

Claims

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

a pair of frame members extending in a longitudinal direction of the vehicle while maintaining a predetermined clearance therebetween in a width direction of the vehicle;

a battery pack disposed between the frame members;

a floor panel supported by the frame members; and

a first reinforcement member having a linear depression protruding downwardly that is disposed underneath the floor panel,

wherein the battery pack is situated underneath the floor panel, and

the battery pack includes a linear depression to which the linear depression of the first reinforcement member is fitted.

2. The battery mounting structure for a vehicle as claimed in claim 1, wherein the battery pack includes a cell stack formed of a plurality of single cells that is disposed on both sides of the linear depression of the battery pack.

3. The battery mounting structure for a vehicle as claimed in claim 1, wherein the first reinforcement member includes:

a cross member extending between the frame members in a width direction of the vehicle, and

a longitudinal floor member extending between the frame members in a longitudinal direction of the vehicle.

4. The battery mounting structure for a vehicle as claimed in claim 3,

wherein a plurality of the first reinforcement member are arranged in the vehicle at predetermined intervals, and

the cell stacks are arranged between the first reinforcement member.

5. The battery mounting structure for a vehicle as claimed in claim 1, wherein the first reinforcement member is integrated with the floor panel.

6. The battery mounting structure for a vehicle as claimed in claim 1, further comprising:

a second reinforcement member extending along the linear depression of the battery pack in a casing of the battery pack; and

a fixing member that fixes the second reinforcement member, the linear depression of the battery pack and the first reinforcement member.

7. The battery mounting structure for a vehicle as claimed in claim 6, wherein the second reinforcement member is integrated with the casing.

8. The battery mounting structure for a vehicle as claimed in claim 2,

wherein the cell stack includes a solid electrolyte, and

the battery pack is fixed to the frame members in such a manner that the single cells are juxtaposed in the width direction of the vehicle.

9. The battery mounting structure for a vehicle as claimed in claim 8, wherein the battery pack includes a battery module, comprising:

a pair of end plates holding the cell stack from both ends; and

a bundling member connecting the end plates to bundle the cell stack between the end plates.

10. The battery mounting structure for a vehicle as claimed in claim 8, wherein the battery module is arranged in such a manner that one of the end plates extends parallel to an sidewall of the casing.