Fuel cell support structure and method of assembly/disassembly thereof

• US 8,765,322 B2
• Filed: 11/05/2008
• Issued: 07/01/2014
• Est. Priority Date: 11/05/2008
• Status: Active Grant

• Current Assignee: Audi AG (Volkswagen AG)
• Original Assignee: Ballard Power Systems Corporation (Siemens AG)
• Inventors: Blondin, Sean M., Fink, Garrett W., Love, Robert A., Rock, Thomas
• Primary Examiner(s): Cano, Milton I
• Assistant Examiner(s): LYLES-IRVING, CARMEN V
• Application Number:
  US13/126,779
• Publication Number:
  US 20110200908A1
• Time in Patent Office: 2,064 Days
• Field of Search: None
• US Class Current: 429/471
• CPC Class Codes: H01M 8/02 Details electrodes H01M4/86 - H01M4/98
• CPC Class Codes: H01M 8/2465 Details of groupings of fuel cells
• CPC Class Codes: H01M 8/247 Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
• CPC Class Codes: Y02E 60/50 Fuel cells

Abstract

A fuel cell installation includes a support structure and a cell stack assembly that is removably insertable into the support structure from an uninstalled position to an installed position during an installation procedure. The cell stack assembly includes a fitting. An interfacing structure is mounted on one of the support structure in the cell stack assembly. The interfacing structure carries a connector that is configured to receive the fitting in interconnected relationship. At least one of the fitting and the connector floats in a plane relative to the support structure during the installation procedure. In operation, the fitting engages the connector when the cell stack assembly is inserted into the support structure. The fitting is repositioned relative to the connector to ensure that the fitting and connector are aligned with one another and connected upon installation.

Claims

1. A fuel cell installation comprising:

a support structure;

a cell stack assembly removably insertable into the support structure from an uninstalled position to an installed position during an installation procedure, the cell stack assembly including a fitting; and

a floating plate mounted on one the support structure and the cell stack assembly, the floating plate carrying a connector configured to receive the fitting in an interconnected relationship, the connector movable in a plane relative to the support structure and aligning with the other of the fitting and the connector in response to insertion of the cell stack assembly into the support structure during the installation procedure.

2. A fuel cell installation comprising:

a support structure;

a cell stack assembly removably insertable into the support structure from an uninstalled position to an installed position during an installation procedure, the cell stack assembly including a fitting; and

a floating plate mounted on one the support structure and the cell stack assembly, the floating plate carrying a connector configured to receive the fitting in an interconnected relationship, at least one of the fitting and the connector movable in a plane relative to the support structure and aligning with the other of the fitting and the connector in response to insertion of the cell stack assembly into the support structure during the installation procedure, wherein the floating plate is mounted on the support structure with a bearing arranged between the support structure and floating plate in the installed position.

3. The fuel cell installation according to claim 2, wherein the bearing is a spherical bearing permitting rotation of the floating plate relative to the support structure.

4. The fuel cell installation according to claim 2, wherein the floating plate includes interlocking features between the support structure and the floating plate limiting rotation therebetween.

7. The fuel cell installation according to claim 2, wherein the connector is captured within an aperture of the plate and movable in a plane relative thereto.

8. The fuel cell installation according to claim 7, wherein the connector is a fluid connector that includes a lip, the lip and a retainer axially locating the fluid connector within the aperture and permitting movement of the fluid connector in the plane.

5. A fuel cell installation comprising:

a support structure;

a cell stack assembly removably insertable into the support structure from an uninstalled position to an installed position during an installation procedure, the cell stack assembly including a fitting; and

an interfacing structure mounted on one the support structure and the cell stack assembly, the interfacing structure carrying a connector configured to receive the fitting in an interconnected relationship, at least one of the fitting and the connector movable in a plane relative to the support structure and aligning with the other of the fitting and the connector in response to insertion of cell stack assembly into the support structure during the installation procedure, wherein the interfacing structure is mounted on the support structure with a bearing arranged between the support structure and interfacing structure in the installed position, wherein the interfacing structure includes a dielectric bushing arranged between the bearing and the cell stack assembly electrically insulating the cell stack assembly relative to the support structure.

6. The fuel cell installation according to claim 5, wherein the interfacing structure includes a tapered pin extending from the cell stack assembly and received by the bushing in the installed position.