Power storage device

Patent metadata

Field	Value
Publication number	US-11970054-B2
Application number	US-202117556741-A
Country	US
Kind code	B2
Filing date	Dec 20, 2021
Priority date	Jan 28, 2021
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

The power storage module is housed in the first housing. The electronic device is housed in the second housing. The protection unit protects the second housing. The protection unit is disposed to overlap with the second housing in a second direction orthogonal to a first direction in which the first housing and the second housing are arranged side by side. The protection unit includes a load receiving member, a pair of load transmitting members, and a reinforcing member. The pair of load transmitting members is disposed to face each other in a third direction orthogonal to the first direction and the second direction in such a manner that a distance between the pair of load transmitting members increases from the load receiving member toward the first housing.

First claim

What is claimed is:

1. A power storage device comprising:
a power storage module;
a first housing that houses therein the power storage module;
an electronic device;
a second housing that is arranged side by side with the first housing and houses therein the electronic device; and
a protection unit that protects the second housing,
the protection unit being disposed to overlap with the second housing in a second direction orthogonal to a first direction in which the first housing and the second housing are arranged side by side,
the protection unit including a load receiving member that receives a load applied from the first direction, a pair of load transmitting members connected between the load receiving member and the first housing so as to transmit the load applied to the load receiving member to the first housing, and a reinforcing member that reinforces the pair of load transmitting members,
the pair of load transmitting members being disposed other in a third direction orthogonal to the first direction and the second direction in such a manner that a distance between the pair of load transmitting members increases from the load receiving member toward the first housing,
the reinforcing member including a first connection member and a second connection member to connect the pair of load transmitting members,
the first connection member extending in a direction parallel to the third direction so as to bridge the pair of load transmitting members, and
the second connection member being disposed so as to form a gap between the load receiving member and the first connection member.

2. The power storage device according to claim 1 , wherein
when viewed from the second direction, the load receiving member is disposed to protrude from the second housing in the first direction.

3. The power storage device according to claim 1 , wherein
the first housing includes a side surface facing the second housing in the first direction, and
each of the pair of load transmitting members is connected to a corresponding one of both end portions of the side surface in the third direction.

4. The power storage device according to claim 3 , wherein
when viewed from the second direction, a connection portion of each of the pair of load transmitting members connected to a corresponding one of both end portions of the side surface is located outside the power storage module.

5. The power storage device according to claim 1 , wherein
the second connection member has a V-shape,
two arms of the V-shape are connected to the pair of load transmitting members, and
a bottom of the V-shape is connected to a central portion of the first connection member.

6. The power storage device according to claim 1 , wherein
the second connection member has a first linear member and a second linear member intersecting with each other inside the pair of load transmitting members.

7. The power storage device according to claim 1 , wherein
the second connection member is connected to the central portions of the pair of load transmitting members in an extending direction of the load transmitting members.

Assignees

• Toyota Motor Co Ltd

Inventors

• Ogawa Naohito

Classifications

• B60K1/04 Primary

  of the electric storage means for propulsion · CPC title

• H01M50/242

  adapted for protecting batteries against vibrations, collision impact or swelling · 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

• B60K2001/0438

  Arrangement under the floor · CPC title

• H01M50/209 Primary

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title