Battery pack support structure

Patent metadata

Field	Value
Publication number	US-11034229-B2
Application number	US-201916558881-A
Country	US
Kind code	B2
Filing date	Sep 3, 2019
Priority date	Sep 5, 2018
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

A battery pack is placed on a battery frame. The battery frame has a lateral frame which extends in a lateral direction. A connection bracket for connecting the battery frame and a floor of a vehicle is joined to an end of the lateral frame. With the joining of the end of the lateral frame with the connection bracket, a crank shape is formed in the lateral direction. A reinforcement plate functioning as a brace is placed at a corner portion of the crank shape.

First claim

The invention claimed is:

1. A battery pack support structure, comprising:
a battery frame that is placed along a lower surface or an upper surface of a battery pack mounted below a floor of a vehicle, that is joined to the battery pack, and that has a plurality of lateral beams which extend in a lateral direction;
a connection bracket that is joined to an end of at least a part of the lateral beams, that forms a crank shape in the lateral direction along with the lateral beam, and that connects the battery frame and the floor, the connection bracket is joined to the floor of the vehicle; and
a bracing member that is placed at a corner portion of the crank shape.

2. The battery pack support structure according to claim 1 , further comprising:
a reinforcement plate that extends in a longitudinal direction crossing ends of the plurality of lateral beams, wherein
a portion, of the reinforcement plate, corresponding to the connection bracket, functions as the bracing member.

3. The battery pack support structure according to claim 1 , wherein
the connection bracket has a lateral beam joined part which is joined to the lateral beam, a floor joined part which is joined to the floor, and a connection part which connects the lateral beam joined part and the floor joined part, and
at least a part of the bracing member is joined to the lateral beam and to an end, of the connection part of the connection bracket, on the side of the floor joined part.

4. The battery pack support structure according to claim 1 , wherein
the lateral beam has a ridge which extends along a longitudinal direction of the lateral beam, and
the bracing member has a ridge which extends in a direction connecting the connection bracket and the lateral beam and which is placed in alignment with a position of the ridge of the lateral beam.

5. A battery pack support structure, comprising:
a battery frame that is placed along a lower surface or an upper surface of a battery pack mounted below a floor of a vehicle, that is joined to the battery pack, and that has a plurality of lateral beams which extend in a lateral direction;
a connection bracket that is joined to an end of at least a part of the lateral beams, that forms a crank shape in the lateral direction along with the lateral beam, and that connects the battery frame and the floor; and
a bracing member that is placed at a corner portion of the crank shape,
wherein the connection bracket has a lateral beam joined part which is joined to the lateral beam, a floor joined part which is joined to the floor, and a connection part which connects the lateral beam joined part and the floor joined part, and
at least a part of the bracing member is joined to the lateral beam and to an end, of the connection part of the connection bracket, on the side of the floor joined part.

6. The battery pack support structure according to claim 5 , further comprising:
a reinforcement plate that extends in a longitudinal direction crossing ends of the plurality of lateral beams, wherein
a portion, of the reinforcement plate, corresponding to the connection bracket, functions as the bracing member.

7. The battery pack support structure according to claim 5 , wherein
each of the lateral beams has a ridge which extends along a longitudinal direction of the lateral beam, and
the bracing member has a ridge which extends in a direction connecting the connection bracket and the lateral beams and which is placed in alignment with a position of the ridge of the lateral beams.

Assignees

• Toyota Motor Co Ltd

Inventors

• Kosuge Tomotake

Classifications

• B60L50/64

  Constructional details of batteries specially adapted for electric vehicles · CPC title

• H01M50/249

  specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) · CPC title

• B60Y2306/01

  Reducing damages in case of crash, e.g. by improving battery protection · CPC title

• B60K2001/0438

  Arrangement under the floor · CPC title

• B60K1/04 Primary

  of the electric storage means for propulsion · CPC title