Methods of installing cell stack assemblies

• US 9,478,821 B2
• Filed: 05/20/2014
• Issued: 10/25/2016
• Est. Priority Date: 11/05/2008
• Status: Active Grant

• Current Assignee: Audi AG (Volkswagen AG)
• Original Assignee: Audi AG (Volkswagen AG)
• Inventors: Blondin, Sean M., Fink, Garrett W., Love, Robert A., Rock, Thomas
• Primary Examiner(s): Stagg, Miriam
• Assistant Examiner(s): LYLES-IRVING, CARMEN V
• Application Number:
  US14/283,085
• Publication Number:
  US 20140255823A1
• Time in Patent Office: 889 Days
• Field of Search: None
• US Class Current: 1/1
• 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. Related methods are disclosed.

Claims

1. A method of installing a cell stack assembly into a support structure comprising:

inserting a cell stack assembly into a support structure in an installation direction;

engaging a fluid fitting on the cell stack assembly with a fluid connector carried by a floating plate and mounted on the support structure; and

after engaging the fluid fitting with the fluid connector, repositioning the fluid fitting and fluid connector relative to one another in a direction transverse to the installation direction in response to the inserting.

2. The method according to claim 1, wherein the inserting includes sliding the cell stack assembly on the support structure in the installation direction.

5. The method according to claim 1, wherein the cell stack assembly includes a pin, and the support structure includes a plate supported by the support structure in a plane transverse to the installation direction, the engaging including engaging the plate with the pin, and the repositioning includes moving the plate in a plane.

6. The method according to claim 5, wherein the plate carries the fluid connector, and the repositioning includes moving the fluid connector relative to the plate in the plane.

7. The method according to claim 5, wherein the engaging includes electrically isolating the pin from the support structure.

8. The method according to claim 1, wherein the engaging includes sealing the fluid fitting relative to the fluid connector.

3. A method of installing a cell stack assembly into a support structure comprising:

inserting a cell stack assembly into a support structure in an installation direction;

engaging a fluid fitting on the cell stack assembly with a fluid connector carried by a floating plate that is mounted on the support structure; and

after engaging the fluid fitting with the fluid connector, repositioning the fluid fitting and fluid connector relative to one another in a direction transverse to the installation direction.

9. The method of claim 3, wherein engaging the fluid fitting on the cell stack assembly with the fluid connector carried by the floating plate comprises allowing the floating plate to float with respect to the support structure.

10. The method of claim 3, wherein engaging the fluid fitting on the cell stack assembly with the fluid connector carried by the floating plate comprises allowing the fluid connector to float with respect to the floating plate.

11. The method of claim 3, wherein repositioning the fluid fitting and fluid connector relative to one another in the direction transverse to the installation direction comprises repositioning the fluid fitting and the floating plate relative to one another in the direction transverse to the installation direction.

12. The method of claim 3, wherein repositioning the fluid fitting and fluid connector relative to one another in the direction transverse to the installation direction comprises repositioning the fluid connector and the floating plate relative to one another in the direction transverse to the installation direction.

4. A method comprising:

inserting a cell stack assembly into a support structure in an installation direction;

engaging a fluid fitting on the cell stack assembly with a fluid connector carried by a floating plate; and

after engaging the fluid fitting with the fluid connector, repositioning the fluid fitting and fluid connector relative to one another in a direction transverse to the installation direction.

13. The method of claim 4, wherein engaging the fluid fitting on the cell stack assembly with the fluid connector carried by the floating plate comprises engaging the fluid fitting on the cell stack assembly with the fluid connector carried by the floating plate, the floating plate being mounted on the support structure.

14. The method of claim 4, wherein engaging the fluid fitting on the cell stack assembly with the fluid connector carried by the floating plate comprises allowing the floating plate to float with respect to the support structure.

15. The method of claim 4, wherein engaging the fluid fitting on the cell stack assembly with the fluid connector carried by the floating plate comprises allowing the fluid connector to float with respect to the floating plate.

16. The method of claim 4, wherein repositioning the fluid fitting and fluid connector relative to one another in the direction transverse to the installation direction comprises repositioning the fluid fitting and the floating plate relative to one another in the direction transverse to the installation direction.

17. The method of claim 4, wherein repositioning the fluid fitting and fluid connector relative to one another in the direction transverse to the installation direction comprises repositioning the fluid connector and the floating plate relative to one another in the direction transverse to the installation direction.