Pin mount for battery module

Patent metadata

Field	Value
Publication number	US-10170739-B2
Application number	US-201514924053-A
Country	US
Kind code	B2
Filing date	Oct 27, 2015
Priority date	Oct 27, 2015
Publication date	Jan 1, 2019
Grant date	Jan 1, 2019

Abstract

A battery pack housing forms a container that receives battery modules. The battery pack housing includes container portion and a cover that closes an open end of the container portion. The container portion includes a base, sidewalls that surround the base, and parallel rails that protrude from the base inner surface. The rails have longitudinally-spaced slots that open facing the cover. In addition, an inner surface of the cover portion includes parallel rails having longitudinally spaced slots that open facing the base. The slots are configured to receive and retain pins provided on side surfaces of the battery module housing. The cooperation between the pins of the battery module housing and the slots of the container portion and cover portion permit modules to be easily and securely located within the battery pack housing, and to be quickly removed from the battery pack housing during maintenance.

First claim

What is claimed, is:

1. A battery pack comprising a battery pack housing and a battery module disposed in the battery pack housing,
the battery pack housing including
a first side,
a second side that is parallel to the first side, an inner surface of the first side facing and being spaced apart from an inner surface of the second side,
a first rail that protrudes from the inner surface of the first side, and a second rail that protrudes from an inner surface of the second side,
the first rail including
a first support surface that is parallel to and spaced apart from the inner surface of the first side,
adjoining side surfaces of the first rail that extend between the inner surface of the first side and the first support surface, the first support surface and the adjoining side surfaces of the first rail providing an outer surface of the first rail, and
a first slot that opens at the first support surface and faces the inner surface of the second side, the first slot intersecting each of the first support surface and the adjoining side surfaces of the first rail,

the second rail including
a second support surface that is parallel to and spaced apart from the inner surface of the second side,
adjoining side surfaces of the second rail that extend between the inner surface of the second side and the second support surface, the second support surface and the adjoining side surfaces of the second rail providing an outer surface of the second rail, and
a second slot that opens at the second support surface and faces the inner surface of the first side, the second slot intersecting each of the second support surface and the adjoining side surfaces of the second rail,

wherein
the battery module is disposed in the battery pack housing so as to reside between the first side and the second side, the battery module including
a module housing, an outer surface of the module housing including a first protrusion and a second protrusion, and
electrochemical cells disposed within the module housing,

and wherein
the first protrusion is disposed in the first slot,
the second protrusion is disposed in the second slot, and
the module housing is located and retained relative to the battery pack housing via engagement of the first slot with the first protrusion, and engagement of the second slot with the second protrusion.

2. The battery pack of claim 1 , wherein the first slot and the second slot are aligned in a direction perpendicular to the inner surface of the first side.

3. The battery pack of claim 1 , wherein the first slot and the second slot are shaped to conform to the shape of an outer surface of the first protrusion and the second protrusion.

4. The battery pack of claim 1 , wherein the first slot includes a seat portion and a chamfered guide portion that is disposed between the seat portion and the first support surface.

5. The battery pack of claim 4 , wherein the guide portion is chamfered so as to have a maximum spacing between facing slot surfaces at a location corresponding the intersection of the guide portion and the first support surface, and a minimum spacing between facing slot surfaces at a location corresponding to the intersection of the guide portion and the seat portion.

6. The battery pack of claim 5 , wherein the seating portion is shaped to conform to the shape of an outer surface of the fit protrusion.

7. The battery pack of claim 1 , wherein the module housing includes a module first side that is transverse to the battery pack housing first side, and a module second side opposed to the module first side, and the first protrusion is formed on the module first side and the second protrusion is formed on the module second side.

8. The battery pack of claim 1 , wherein the battery pack housing first side includes plural parallel and spaced apart first rails, each first rail including a first slot, and the battery pack housing second side includes plural second rails, each second rail aligned with one of said first rails.

9. The battery pack of claim 1 , wherein the battery pack housing includes a detachable cover that includes the first side, and a container portion that includes the second side, and the cover is configured to be supported on the container portion to form a hollow container.

10. The battery pack of claim 1 , wherein the battery pack housing includes
a third rail that protrudes from the inner surface of the first side and is spaced apart from the first rail,
a fourth rail that protrudes from the inner surface of the second side and is spaced apart from the second rail,

wherein the module housing is disposed between the first rail and the third rail, and between the second rail and the fourth rail.

Assignees

• Bosch Battery Systems GmbH
• Bosch Gmbh Robert

Inventors

• Schoenherr Robert
• Botadra Mehul

Classifications

• H01M2220/20

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

• H01M50/209 Primary

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

• H01M50/291

  characterised by their shape · CPC title

• H01M50/271

  Lids or covers for the racks or secondary casings · CPC title

• H01M50/244

  Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method · CPC title