Fuel cell stack fixing device

Abstract

The present invention provides a fuel cell stack fixing device that reduces the time spent in the fixing process, prevents problems with variations in the force applied during the fastening process, and, without affecting fixing stability, enables rapid assembly design and shortens process time, while further improving fixing effectiveness. [Solution] The fuel cell stack fixing device includes at least one first pressing member, at least one second pressing member, at least one first fastener, at least one second fastener, and a plurality of connecting members, forming a first connecting passage, a second connecting passage, a third connecting passage, and a fourth connecting passage between the first pressing member and the first fastener, the first pressing member and the second fastener, the second pressing member and the first fastener, and the second pressing member and the second fastener, respectively, and installing and connecting members to fix them together, thereby generating clamping and fastening effects on the opposing top and bottom surfaces and opposing first and second surfaces of the fuel cell stack.

Claims

1. A fixing device for a fuel cell stack, wherein the fuel cell stack has opposing upper and lower surfaces, and the fixing device is Installed on the upper surface of the fuel cell stack, and having a plurality of first protrusions on one side, each of the first protrusions having a first hole passing through it, at least one first pressing member, At least one second pressing member is installed on the bottom surface of the fuel cell stack, Having opposing first and second ends, the first end is provided with at least one fifth hole passing through the first end, the second end is connected to the second pressing member, and the first end is fitted between two first protrusions, and the fifth hole and each of the first holes constitute a first connecting passage, comprising at least one first fastener, At least one first connecting member installed penetrating the first connecting passage, A fixing device for fuel cell stacks, including the above.

2. The fixing device for a fuel cell stack according to claim 1, wherein the first connecting member is a bolt and a nut, and the bolt is installed through the first connecting passage and screwed into the nut.

3. The cross-section of the first fastener has a regular or irregular geometric shape. The fuel cell stack fixing device according to claim 1, wherein both the first hole and the fifth hole are conformal to the regular or irregular geometric cross-section of the first fastener.

4. The second pressing member has a plurality of second protrusions on one side, each of the second protrusions has a third hole passing through it, the second end of the first fastener is provided with at least one fourth hole passing through it, the second end is fitted between two of the second protrusions, and the fourth hole and each of the third holes constitute a second connecting passage. The fixing device for a fuel cell stack according to claim 1, further comprising at least one second connecting member installed through the second connecting passage.

5. The fixing device for a fuel cell stack according to claim 1, wherein at least one elastic member is provided between the first pressing member and the upper surface, and the elastic member has elastic stretchability in the direction normal to the upper surface.

6. The fixing device for a fuel cell stack according to claim 5, wherein each of the elastic members is a disc spring or a cushioning pad made of elastic rubber, silicone, or foamed metal.

7. The fixing device for a fuel cell stack according to claim 5, wherein the bottom surface of the first pressing member and the top surface of the fuel cell stack face each other, at least one first recess is provided on the top surface of the fuel cell stack, a second recess is provided on the bottom surface of the first pressing member corresponding to each of the first recesses, and the elastic member is provided between the corresponding first recess and the second recess.

8. The fixing device for a fuel cell stack according to claim 7, wherein each of the first pressing members is provided with a screw hole corresponding to the position of the second recess, each screw hole penetrates each of the first pressing members parallel to the direction normal to the upper surface, a bolt is provided in each screw hole, each bolt is screwed into the screw hole from outside the first pressing member parallel to the direction normal to the upper surface and penetrates the corresponding elastic member to reach the corresponding first recess, and the distance between each of the first pressing members and the upper surface is adjusted by the bolt and the elastic member.

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