System for supporting a fuel cell stack
A fuel cell system includes a plurality of fuel cell plates. A first plate of the fuel cell plates is connected to a plurality of plate supports located on a periphery of the first plate. Each support of the plurality of plate supports is electrically insulating and bounds an opening for receiving an aligning member therein.
1 . A fuel cell system comprising:
a plurality of metallic fuel cell plates;
a first plate of the fuel cell plates connected to a plurality of plate supports located on a periphery of said first plate, each support of said plurality of plate supports being electrically insulating and bounding a peripheral opening for receiving an aligning member therein, said opening bounding an exterior of said first plate;
each support of said plurality of plate supports extending inwardly from the periphery to connect to the first plate and peripherally past the periphery of the first plate such that each support contacts an external object to inhibit the periphery contacting the external object in response to a movement of the first plate toward the object.
2 . The system of claim 1 wherein said plurality of fuel cell plates comprises a second plate having a plurality of second plate supports, and wherein the aligning member is separate from and received in a top opening bounded by a top support of the plurality of plate supports and a bottom opening bounded by a bottom support of the plurality of second plate supports.
3 . The system of claim 1 wherein-said plurality of fuel cell plates comprises a second plate having a plurality of second plate supports, said plurality of plate supports and said plurality of second plate supports located between said first plate and said second plate.
4 . The system of claim 1 said plurality of fuel cell plates comprises a second plate having a plurality of second plate supports, and each second plate support of said plurality of second plate supports being electrically insulating and bounding a second plate opening for receiving the aligning member therein, wherein said second plate is assembled with said first plate such that said plurality of plate supports is aligned with said plurality of second plate supports.
5 . The system of claim 4 wherein the aligning member is a first aligning member of a plurality of aligning members received in the opening of each support and the second plate opening of each second plate support to align said first plate relative to said second plate.
6 . The system of claim 1 wherein each support of said plurality of plate supports comprises an inner peripheral cavity receiving an outer peripheral edge of said first plate to connect each support to said first plate.
7 . The system of claim 1 wherein each support of said plurality of plate supports is received in an outer peripheral cavity of said first plate to connect each support to said first plate.
8 . The system of claim 7 wherein said outer peripheral cavity of said first plate is bounded by a first plate portion and a second plate portion of said first plate.
9 . The system of claim 1 wherein said opening is unbounded on a lateral side of said first plate relative to a longitudinal dimension of said first plate, such that said opening is in communication with an exterior of said first plate and is configured to allow an aligning member to pass into said opening from the exterior.
10 . The system of claim 1 wherein each support comprises an inner surface bounding said opening, said inner surface comprising an arched surface and opposite lateral surfaces aligned about normal to a longitudinal dimension of said first plate.
11 . The system of claim 1 wherein each said support extends outwardly away from said first plate further than said first plate in a direction normal to a longitudinal dimension of said first plate such that said support contacts a casing of a fuel cell stack prior to said first plate.
12 . The system of claim 1 wherein each support of said plurality of plate supports extends inwardly past the periphery along a top surface or a bottom surface of said first plate.
13 . A method for use in assembling a fuel cell stack comprising:
connecting a plurality of plate supports to a periphery of a first metallic fuel cell plate;
wherein each support of the plurality of plate supports is electrically insulating and bounds a peripheral opening for receiving an aligning member therein, the opening bounding an exterior of said first plate;
each support of said plurality of plate supports extending inwardly from the periphery to connect to the first plate and peripherally past the periphery of the first plate; and
a first support of the plurality of supports contacting an external object to inhibit the periphery contacting the external object in response to a movement of the first plate toward the object.
14 . The method of claim 13 further comprising aligning the first plate with a second fuel cell plate by aligning a plate support of the plurality of plate supports with a second plate support of the second fuel cell plate.
15 . The method of claim 14 wherein the aligning the first plate with a second fuel cell plate comprises locating an aligning member in the opening of the plate support and in a second opening of the second plate support.
16 . The method of claim 13 wherein the connecting the plurality of plate supports to the periphery of the first fuel cell plate comprises receiving a plurality of locations of a peripheral edge of the first fuel cell plate in a plurality of inner peripheral cavities of the plurality of plate supports.
17 . The method of claim 13 wherein the connecting the plurality of plate supports to the periphery of the first fuel cell plate comprises receiving the plurality of plate supports in a plurality of outer peripheral cavities of the first fuel cell plate.
18 . The method of claim 13 further comprising inserting an aligning member in the opening from a location exterior to the fuel cell plate in a lateral direction orthogonal to a longitudinal dimension of the first plate.
19 . The method of claim 13 further comprising contacting a plate support of the plurality of plate supports with a casing of the fuel cell system in response to a shock or vibration applied to the fuel cell system.
20 . The method of claim 13 wherein the connecting comprises further comprising connecting the plurality of plate supports to a membrane electrode assembly to connect the membrane electrode assembly to the first plate.