Battery pack

Patent metadata

Field	Value
Publication number	US-12015136-B2
Application number	US-202117341389-A
Country	US
Kind code	B2
Filing date	Jun 8, 2021
Priority date	Apr 14, 2021
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

A battery pack includes a battery column and a liquid cooling tube. The battery column includes at least two batteries, and the batteries are arranged in a first direction. The liquid cooling tube is disposed on a surface of the battery column and is configured to dissipate heat for the batteries. The liquid cooling tube includes cooling portions, and the cooling portions are portions having orthographic projections on the battery column. The orthographic projections of the cooling portions on the battery column are cooling regions. The cooling portions extend in a second direction, and the second direction is not parallel to the first direction.

First claim

What is claimed is:

1. A battery pack, comprising:
a battery column, wherein the battery column comprises at least two battery units, each of which comprises batteries, a heat insulation structure is provided between adjacent battery units, and the batteries of the battery units are arranged in a first direction;
a liquid cooling tube, disposed on a surface of the battery column, configured to dissipate heat for the batteries, wherein the liquid cooling tube comprises cooling portions, the cooling portions are portions having orthographic projections on the battery column, the orthographic projections of the cooling portions on the battery column are cooling regions, the cooling regions of the cooling portions are located within a range of their corresponding battery units and do not overlap with the heat insulation structure, the cooling portions are disposed on at least one of a top portion and a bottom portion of the battery column, the cooling portions extend in a second direction, and the second direction is not parallel to the first direction; and
wherein in each battery unit, one of the batteries adjacent to the heat insulation structure is a target battery, another one of the batteries not adjacent to the heat insulation structure is a non-target battery, the target battery and the non-target battery do not share the same cooling portion, and at least one of the batteries is located outside a range of the cooling regions.

2. The battery pack according to claim 1 , wherein the second direction is perpendicular to the first direction.

3. The battery pack according to claim 2 , wherein a length of each of the cooling portions in the second direction is equal to a width of each of the batteries in the second direction.

4. The battery pack according to claim 2 , wherein
the liquid cooling tube further comprises first connection portions, the cooling regions at least partially overlapping with the target batteries of the battery units are target battery cooling regions, and the first connection portions connect the cooling portions corresponding to the target battery cooling regions arranged in the second direction together.

5. The battery pack according to claim 1 , wherein at least partial regions of at least two batteries respectively overlap with the cooling regions.

6. The battery pack according to claim 1 , wherein the liquid cooling tube further comprises second connection portions, and the second connection portions connect the cooling portions corresponding to the non-target batteries together.

7. The battery pack according to claim 1 , wherein the target battery is provided with the cooling portion whose cooling region at least partially overlaps with the target battery.

8. The battery pack according to claim 1 , wherein each of the battery units is provided with the cooling portions.

Assignees

• Calb Co Ltd
• Calb Tech Co Ltd

Inventors

• Niu Li
• Li Xinjian
• Zhang Xuan
• Sun Guohua
• Li Zhouli
• Guo Qixin

Classifications

• H01M10/6556 Primary

  Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552) · CPC title

• H01M10/6552

  Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes · CPC title

• H01M10/6568

  characterised by flow circuits, e.g. loops, located externally to the cells or cell casings · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title