Traction battery of a motor vehicle

Patent metadata

Field	Value
Publication number	US-10811649-B2
Application number	US-201916456090-A
Country	US
Kind code	B2
Filing date	Jun 28, 2019
Priority date	Jul 2, 2018
Publication date	Oct 20, 2020
Grant date	Oct 20, 2020

Abstract

Traction battery of a motor vehicle includes a battery frame which is assembled from supports. A plurality of battery modules are accommodated in the battery frame and are each composed of a plurality of battery cells which are accommodated in a module housing of the respective battery module. The respective module housing is assembled from side walls and a base wall. The base wall of the respective module housing is designed as a cooling panel for cooling the battery cells. A cover panel is connected to is the battery frame. An underride guard panel is connected to the battery frame.

First claim

What is claimed is:

1. A traction battery of a motor vehicle, said traction battery comprising:
a battery frame comprising supports,
a plurality of battery modules accommodated in the battery frame, wherein each battery module is composed of a plurality of battery cells which are accommodated in a module housing of the respective battery module,
each module housing comprises side walls and a base wall, the base wall of each module housing is configured as a cooling panel for cooling the battery cells,
a cover panel which is connected to the battery frame, and
an underride guard panel which is connected to the battery frame,
wherein the base wall of each module housing protrudes in relation to the side walls of the respective module housing on two opposite narrow sides and has, on a first side, a feed connection, and, on an opposite second side, a return connection for coolant, and
wherein the battery modules are accommodated in the battery frame in such a way that the narrow sides of the module housings of the battery modules are in alignment and the feed connections and the return connections are respectively in a row.

2. The traction battery as claimed in claim 1 , wherein a support of the battery frame, which support runs parallel in relation to the row of feed connections, forms a feed channel which is coupled to the feed connections, whereas an opposite support of the battery frame, which opposite support runs parallel in relation to the row of return connections, forms a return channel which is coupled to the return connections.

3. The traction battery as claimed in claim 1 , wherein the base wall of the respective module housing has a top panel and a bottom panel,
wherein the top panel and the bottom panel, in first sections, bear against one another and are connected to one another, and wherein the top panel and the bottom panel, in second sections, are disposed at a distance from one another and form cooling channels.

4. The traction battery as claimed in claim 1 , wherein
the side walls of the respective module housing are screw-connected to one another,
the base wall of the respective module housing is screw-connected to the side walls of the respective module housing,
the base wall and side walls of the respective module housing are screw-connected to supports of the battery frame,
the cover panel is screw-connected to the battery frame, and
the underride guard panel is screw-connected to the battery frame.

5. A traction battery of a motor vehicle, said traction battery comprising:
a battery frame comprising supports,
a plurality of battery modules accommodated in the battery frame, wherein each battery module is composed of a plurality of battery cells which are accommodated in a module housing of the respective battery module,
each module housing comprises side walls and a base wall, the base wall of each module housing is configured as a cooling panel for cooling the battery cells,
a cover panel which is connected to the battery frame,
an underride guard panel which is connected to the battery frame, and
spring-elastically deformable elements positioned between the base walls of the battery modules and the underride guard panel.

6. The traction battery as claimed in claim 5 , wherein
a first section of the respective spring-elastically deformable element is connected to the base wall of at least one battery module and/or to at least one support of the battery frame, and
second sections of the respective spring-elastically deformable element bear against the underride guard panel.

7. The traction battery as claimed in claim 6 , wherein each spring-elastically deformable element is screw-connected to the base wall of the respective battery module and/or to the respective support of the battery frame by way of the first section of the spring-elastically deformable element.

8. A traction battery of a motor vehicle, said traction battery comprising:
a battery frame,
a plurality of battery modules which are accommodated in the battery frame and are each composed of a plurality of battery cells which are accommodated in a module housing,
an underride guard panel which is connected to the battery frame, and
spring-elastically deformable elements which are positioned between the module housings of the battery modules and the underride guard panel.

9. The traction battery as claimed in claim 8 , wherein
a first section of each spring-elastically deformable element is connected to the module housing of at least one battery module and/or to the battery frame, and
second sections of each spring-elastically deformable element bear against the underride guard panel.

Assignees

• Porsche Ag
• Audi Ag

Inventors

• Zacher Marcus
• Gerbrand Juergen
• Milde Thomas
• Schuessler Martin

Classifications

• B60K1/04 Primary

  of the electric storage means for propulsion · CPC title

• 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

• H01M50/204

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

• H01M10/613 Primary

  Cooling or keeping cold · CPC title