JPH0286072A - Laminated fuel cell - Google Patents

Abstract

PURPOSE:To obtain the effective spring effect of fastening bars against the vibration at the time of transportation or en earthquake and prevent an inclination or a tumble by fastening and supporting a cell main body with the fastening bars made of spring steel and assembled in parallel crosses from side faces in four directions via manifold pressing plates. CONSTITUTION:The first and second fastening bars 15 and 17 are assembled in parallel crosses. A common pressing plate 20 for a fuel gas manifold 4 or 4' and a reaction air manifold 5 or 5' is fitted to the first fastening bar 15, and a pressing plate 21 for a cooling gas manifold 3 and 3' is fitted to the second fastening bar 17. The manifold pressing plates 20 and 21 are fixed to a pipe 22 inserted with the fastening bars 15 and 17 in advance, and the pressing plates 20 and 21 are made rotatable and slidable against the bars 15 and 17 so as to be brought into contact with each manifold. When the fitting and connection positions of the first and second fastening bars 15 and 17 assembled in parallel crosses are adjusted, the pressing plates 20 and 21 press the manifolds 4, 5 and 3 from the outside, thereby a cell main body 1 is vibration-proofingly supported from four directions.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a stacked fuel cell of a storage type with good vibration resistance.

(b) Conventional technology If a battery body housed in a container is simply fixed at its bottom to a support inside the container, there is a risk of the battery tipping or falling due to transportation or earthquake vibrations, especially if the battery is high. The danger increases as the number of stacked cells increases and the height of the battery increases as output increases. A number of vibration-resistant configurations have been proposed for batteries in containers, but all of them have the problem of being difficult to incorporate between the container and the battery and lacking in practicality.

(...) Problems to be Solved by the Invention The present invention provides a fuel cell housed in a container that is effective not only against earthquakes but also against shaking vibrations during transportation, and which is easy to incorporate into a vibration-resistant container. It is something.

(d) Means for Solving the Problems The present invention provides a method in which a pair of mounting seats are fixed to each opposing inner wall of a container in which a battery body with a manifold attached to each circumferential surface of a cell stack is housed, A pair of first spring steel tightening bars to which respective holding plates of the opposing manifold are attached are respectively supported on the respective mounting seats via mounting blocks, and a pair of spring steel second tightening bars to which respective holding plates of the other opposing manifold are attached are respectively supported. The present invention is characterized in that a tightening bar is fixed to each end of the first tightening bar via a connecting block.

(9) In the present invention, the battery body inside the container is tightened and supported by the clamping bars with manifold holding plates that protrude from the sides in four directions, so that sufficient adjustment can be made to prevent misalignment of the battery body. In addition, since spring steel is used as the material for the four tightening bars, the spring effect always stabilizes the tightening state of the battery body1, and exhibits excellent vibration resistance.

(v) Example The battery body (1) has cooling gas supply/discharge manifolds (3) (3)' attached to one opposing surface of the cell stack (2), and fuel gas supply/discharge manifolds (3) to the other opposing surface. Each manifold (4) (4)' and each reaction air supply/travel manifold (5) (5)' are arranged in parallel.

The container (6) that houses the battery body (1) is a pressure-resistant container in the case of a pressurized battery, but in the case of a normal-pressure battery, it is a container that increases safety by creating an atmosphere of N or gas inside that is slightly higher than normal pressure. In this example, the latter container was used. This container (6
) has a substantially rectangular planar shape, and includes a cylindrical lower half (10) and a cylindrical lower half (10) which are sequentially connected to the base (7) on which the battery body (1) is placed by mounting flanges (8) and (9), respectively. Cover-shaped upper half (
11), each flange part (8') (9)
are airtightly joined via a sealant.

As shown in FIGS. 3 and 4, a pair of mounting seats (12) (12) are provided on one opposite inner wall of the lower half of the container (10) at a distance from each other in the vicinity of the flange (9), respectively. is welded. The mounting block (14) fixed to each mounting seat (12) with a bolt (13) has a long hole through which a bolt is inserted. 1 Adjust the position of the tightening bar (15). A second clamping bar (7) of the spring adrenal gland is connected to each end of the opposing first clamping bar (15) via a connecting block (16). At this time, the connecting block (16) is first positioned with a nut (18) that is screwed onto the first tightening bar (15), and then with a nut (19) that is screwed onto the second tightening bar (17).
It is fixed at

(The first and second tightening bars (15) and (17) are assembled in a protruding shape.Each first tightening bar (15) is equipped with a fuel gas manifold (4) or (4)'. A common holding plate (20) for the reaction air manifold (5) or (5)' is attached, and a holding plate for the cooling gas manifold (3) and (3)' is attached to each second tightening bar (17). (21) are attached.These manifold holding plates (20) and (21) are attached to the pipes (2
2), and is rotatable and slidable relative to the clamping bars (15) and (17) so that the holding plates (20) and (21) come into contact with each manifold.

The first and second tightening bars (15) (17) are arranged in a protruding shape.
), if its installation and connection position are adjusted as described above,
The holding plates (20) and (21) press each manifold (4), (5), and (3) from the outside, so that the battery body (1) is supported from four sides in a vibration-proof manner.

The above embodiments have been described using the separate gas cooling system (SGC), but the other embodiments shown in FIGS. 6 and 7 are based on the DIGAS system, in which cooling air and reaction air are commonly supplied. In this case, the battery body (1) has a common manifold (2) for cooling and reaction air on each peripheral surface of the cell stack (2).
30) (30)' and 7 Nifold (40) (4) of fuel gas
0)'' is attached, and the shapes of both manifold holding plates (50) and (60) are approximately the same.
The vibration isolation structure is exactly the same as the embodiment.

(G) Effects of the Invention According to the present invention, the battery body in the storage container is clamped and supported from four side surfaces via the manifold holding plate by the spring steel clamping bars arranged in a protruding shape. As a result, the spring effect of the tightening bar effectively absorbs the vibrations of the battery body during transportation or earthquakes, thereby preventing it from tipping or falling over.

In addition, since the two opposing sides of the protruding tightening bar are supported near the flange of the lower half of the container, the support strength is large even if the container is relatively thin, and even after the vibration-proof device is installed. Since the upper half of the container is attached, the assembly structure is simplified.

[Brief explanation of drawings]

FIG. 1 is a partially broken perspective view of a container-storage type fuel cell according to the present invention, FIG. 2 is a plan view of the same battery, FIG. 3 is an enlarged plan view of the main parts, and FIGS. 4 and 5 are 3 is a side view seen from the directions AA and BB, FIG. 6 is a perspective view of another embodiment of the battery of the present invention, and FIG. 7 is a plan view of the same. l: Pond body, 3.3゛: Cooling gas manifold, 4.4
゛: Fuel gas manifold, 5.5': Reaction air manifold, 6: Container, 7: Base, 8.9: Flange joint, 1
0.11: Lower and upper half of container, 12: Mounting seat, 14
2nd mounting block, 15.17: 1st and 2nd tightening bar 1
6: Connection block, 20.21: 7 Nifold presser plate, 2
2: Holding plate mounting pipe.

Claims (4)

[Claims] (1) In a fuel cell in which a battery body with a manifold attached to each peripheral surface of a cell stack is housed in a container, a pair of mounting seats are fixed to one opposing inner wall of the container at a distance, respectively; A pair of spring steel first tightening bars each having a respective holding plate of one facing manifold are respectively supported on each of the mounting seats via a mounting block, and a pair of spring steel first tightening bars having each holding plate of the other facing manifold are respectively supported by the mounting seats. A stacked fuel cell, characterized in that second clamping bars made of aluminum are fixed to both ends of each of the first clamping bars via connecting blocks. (2) The container is divided into a cylindrical lower half and a cover-shaped upper half, which are sequentially connected to a base supporting the battery body by a mounting flange, and the container has a cylindrical lower half and a cover-shaped upper half connected to each other in the vicinity of the mounting flange in the lower half of the container. 2. The stacked fuel cell according to claim 1, wherein the mounting seat is fixed. (3) The stacked fuel cell according to claim 2, wherein the mounting block has an adjustment slot for fixing to the mounting seat with a bolt. (4) The stacked fuel cell according to claim 1, wherein each holding plate of the manifold is attached to a pipe inserted through the first and second tightening bars.