Vehicle having a battery pack directly attached to the cross rails of a frame structure

Patent metadata

Field	Value
Publication number	US-10017037-B2
Application number	US-201715429095-A
Country	US
Kind code	B2
Filing date	Feb 9, 2017
Priority date	Feb 9, 2016
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

A vehicle has a body forming a passenger compartment. The vehicle also has a chassis supporting the body. The chassis includes a frame structure having a pair of side rails connected by a plurality of rigid cross rails and defining a plurality of bays between the cross rails. The vehicle additionally has a battery pack including a plurality of electrical storage devices stored in a battery housing. The battery housing defines a plurality of channels. The vehicle further includes a fastening mechanism attaching the battery housing directly to the plurality of cross rails with at least a portion of the battery housing in the plurality of bays and the plurality of cross rails in the plurality of channels.

First claim

What is claimed is:

1. A vehicle comprising:
a body forming a passenger compartment;
a chassis supporting the body, the chassis including a frame structure comprising a pair of side rails connected by a plurality of rigid cross rails and defining a plurality of bays between the cross rails;
a battery pack including a plurality of electrical storage devices stored in a battery housing, the battery housing defining a plurality of channels; and
a fastening mechanism attaching the battery housing directly to the plurality of cross rails with at least a portion of the battery housing in the plurality of bays and the plurality of cross rails in the plurality of channels,
wherein the battery housing comprises:
a lower housing which includes a bottom wall which forms a support surface for the plurality of electrical storage devices; and
an upper housing which includes a top wall which forms a cover for the plurality of electrical storage devices,

wherein the plurality of channels are formed by the upper housing,
wherein the fastening mechanism includes a plurality of fasteners each inserted through the bottom wall, the top wall, and a bottom plate of a respective cross rail, and
wherein the bottom wall contacts the top wall in the areas where the plurality of fasteners are inserted.

2. The vehicle of claim 1 , wherein the bottom wall and the top wall include increased-thickness portions in the areas where the plurality of fasteners are inserted.

3. The vehicle of claim 1 , wherein the bottom wall is thicker than the top wall in the increased-thickness portions.

4. The vehicle of claim 1 , wherein the bottom wall defines a plurality of grooves which are aligned with a respective channel of the plurality of channels, and wherein heads of the plurality of fasteners are positioned in a respective groove.

5. The vehicle of claim 1 , wherein each of the plurality of cross rails comprises:
a first portion which is wider than a respective channel and contacts a top surface of the battery housing adjacent to a respective channel; and
a second portion which extends perpendicular to the first portion into the channel and contacts a surface of the battery housing in the channel, the second portion including the bottom plate.

6. The vehicle of claim 5 , wherein the first portion is hollow and includes a flange which extends outwardly and contacts the top surface of the battery housing, and
wherein the second portion is hollow and includes a bottom plate which contacts a surface of the battery housing in the channel.

7. The vehicle of claim 5 , wherein the second portion is hollow.

8. A vehicle comprising:
a body forming a passenger compartment;
a chassis supporting the body, the chassis including a frame structure comprising a pair of side rails connected by a plurality of rigid cross rails and defining a plurality of bays between the cross rails,
a battery pack including a plurality of electrical storage devices stored in a battery housing, the battery housing defining a plurality of channels; and
a fastening mechanism including a plurality of fasteners attaching the battery housing directly to the plurality of cross rails with at least a portion of the battery housing in the plurality of bays and the plurality of cross rails in the plurality of channels,
wherein each of the cross rails includes a first portion and a second portion which extends perpendicular to the first portion,
wherein the first portion of the cross rails contacts a top surface of the battery housing adjacent to a respective channel and the second portion of the cross rails extends into the respective channel, and
wherein the first portion of the cross rails is hollow and includes a flange which extends outwardly and contacts the top surface of the battery housing.

9. The vehicle of claim 8 , wherein the battery housing comprises:
a lower housing which includes a bottom wall which forms a support surface for the plurality of electrical storage devices; and
an upper housing which includes a top wall which forms a cover for the plurality of electrical storage devices.

10. The vehicle of claim 9 , wherein the plurality of channels are formed by the upper housing.

11. The vehicle of claim 9 , wherein the bottom wall and the top wall include increased-thickness portions in areas where the plurality of fasteners are inserted through the battery housing.

12. The vehicle of claim 11 , wherein the bottom wall is thicker than the top wall in the increased-thickness portions.

13. The vehicle of claim 8 , wherein the second portion of the cross rails is hollow and includes a bottom plate which contacts a surface of the battery housing in the channel.

14. The vehicle of claim 13 , wherein the plurality of fasteners extend through the battery housing and the bottom plate into the hollow second portion.

15. The vehicle of claim 14 , wherein a bottom wall of the battery housing defines a plurality of grooves which are aligned with the plurality of channels, and wherein heads of the plurality of fasteners are positioned in a respective groove.

16. The vehicle of claim 8 , wherein the battery housing comprises:
a lower housing which includes a bottom wall which forms a support surface for the plurality of electrical storage devices; and
an upper housing which includes a top wall which forms a cover for the plurality of electrical storage devices, wherein the plurality of channels are formed by the upper housing.

17. The vehicle of claim 16 , wherein each of the plurality of fasteners is inserted through the bottom wall, the top wall, and a bottom plate of a respective cross rail.

18. The vehicle of claim 17 , wherein the bottom wall contacts the top wall in the areas where the plurality of fasteners are inserted.

19. The vehicle of claim 16 , wherein the second portion of the cross rails is hollow and includes a bottom plate which contacts a surface of the battery housing in the channel.

20. A method of attaching a battery pack to a vehicle including a frame structure, the frame structure including a plurality of rigid cross rails defining a plurality of bays, the method comprising:
positioning the battery pack such that at least a portion of a battery housing is in the plurality of bays and the plurality of cross rails are in a corresponding plurality of channels formed in the battery housing; and
attaching the battery housing directly to the plurality of cross rails by inserting a plurality of fasteners through the battery housing and a bottom plate of the cross rails,
wherein each of the plurality of cross rails comprises:
a first portion which is wider than a respective channel and contacts a top surface of the battery housing adjacent to a respective channel; and
a second portion which extends perpendicular to the first portion into the channel and contacts a surface of the battery housing in the channel, the second portion including the bottom plate,

wherein the first portion is hollow and includes a flange which extends outwardly and contacts the top surface of the battery housing.

Assignees

• Nio Usa Inc

Inventors

• Newman Austin L
• Smith Joshua
• Yildirim Batuhan
• Kaunitz Leon

Classifications

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• B62D25/20

  Floors or bottom sub-units {(sub-frames for mounting engine or suspensions B62D21/11; drip trays F16N31/006)} · CPC title

• B60K2001/0438

  Arrangement under the floor · CPC title

• B60K1/04 Primary

  of the electric storage means for propulsion · CPC title

• B60L53/80

  Exchanging energy storage elements, e.g. removable batteries · CPC title