JPH06103633B2 - Fuel cell - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a fuel cell.

[Background of the Invention]

FIG. 2 shows a conventional example of a fuel cell. As shown in the figure, the fuel cell is a storage container 2 provided on an installation base 1, a stacked battery 3 housed in the storage container 2 and unit cells are stacked, and a side surface of the stacked battery 3. And a manifold 4 which supplies gas to and discharges gas from the laminated battery 3. That is, after stacking a plurality of unit cells on the laminated base 5 and pressurizing the unit cells with a predetermined pressure by the fasteners 6 provided on the upper and lower sides, the fuel and the oxidant gas are supplied to the side surface of the laminated battery 3. The exhaust manifold 4 is attached and covered with the storage container 2. In general, the fuel and the oxidant gas are gas pipes 7 that penetrate the bottom of the storage container 2.
The external device 8 is guided to the bottom side of the manifold 4.

The fuel cell thus configured has the following problems. First, in order to connect the gas pipe 7 from the external device 8, it is necessary to provide a sufficient space for connection work between the bottom of the storage container 2 and the installation base 1, and as a result, the laminated battery 3 Will increase the center of gravity of the vehicle, which is disadvantageous during transportation and against earthquakes. Secondly, the storage space for the laminated battery 3 is reduced due to the height limitation during battery transportation, and the capacity of the laminated battery 3 is reduced. Incidentally, there is JP-A-58-155669 as a related matter. In addition, the strength of the container 2 and the manifold 4 was unstable because the external force generated by the elongation of the pipe due to the temperature change of the gas pipe and the dimensional tolerance of the pipe length was applied to the container 2 and the manifold 4.

[Object of the Invention]

The present invention has been made in view of the above points, and it is possible to reduce the space between the storage container and the installation base, lower the center of gravity of the stacked battery, and increase the stored capacity of the stacked battery with respect to the transport limit height. The purpose of the present invention is to provide a fuel cell that is enabled, but the gas pipe 7 is added to the manifold 4 which must maintain the tightness of the reaction gas.
It provides stable driving performance without applying external force.

[Outline of Invention]

That is, the present invention provides a storage container provided on the installation base, a stacked battery in which the unit batteries are stacked in the storage container, a side surface of the stacked battery, and a gas to the stacked battery. With a manifold to supply and discharge,
In a fuel cell in which a gas pipe for supplying and exhausting gas from the outside is provided inside the manifold on the bottom side of the manifold, the storage container is formed to be separable into upper and lower parts, and the gas pipe is laminated. It is characterized in that it is provided by penetrating the side wall of the storage container so as to face the side surface of the battery, whereby the storage container is formed to be separable into upper and lower parts, and the gas pipe is It is provided so as to penetrate the side wall of the storage container so as to face the side surface of the laminated battery. Further, since the gas pipe 7 penetrates the manifold 4 and the ends of the manifold and the gas pipe are connected to each other by the flexible pipe inside the manifold, the space between the container and the manifold remains small, and the dimensions of the pipe are small. Can absorb changes.

Example of Invention

Hereinafter, the present invention will be described based on the illustrated embodiments. FIG. 1 shows an embodiment of the present invention. Since the same parts as those of the prior art are designated by the same reference numerals, the description thereof will be omitted. In this embodiment, the storage container 2a is formed so as to be divided into upper and lower parts, and the gas pipe 7 is provided so as to penetrate the side wall of the storage container 2a so as to face the side surface of the laminated battery 3. By doing so, the storage container 2a can be divided into upper and lower parts, and the gas pipe 7 is provided so as to penetrate the side wall of the storage container 2a so as to face the side surface of the laminated battery 3. hand,
It is possible to obtain a fuel cell capable of reducing the space between the storage container 2a and the installation base 1, lowering the center of gravity of the laminated battery 3, and increasing the storage capacity of the laminated battery 3 with respect to the transport limit height. .

That is, the storage container 2a is replaced by the upper storage container 2b and the lower storage container 2c.
Separately, the flanges are integrated so as to be separable via a gasket. The lower storage container 2c is arranged close to the installation base 1, and a pipe connection seat from the manifold 4 is provided on the side wall. The manifold 4 has a lower storage container 2c on the side.
A flexible pipe that can be expanded and contracted and connected to the external device 8 is installed inside the manifold 4. Stacked battery 3
After attaching the manifold 4 to the surroundings, put it in the lower storage container 2c, and through the lower storage container 2c from outside
Is connected to the external device 8. By doing so, the position of the storage container 2a can be lowered as compared with the conventional case, and not only the center of gravity of the laminated battery 3 can be lowered and the seismic strength can be enhanced, but also when the fuel cell is transported. Since the storage container 2a can be made larger than the conventional transport limit height, the number of stacks of the stacked batteries 3 can be increased by that amount, and the battery capacity is 10 at the same height as the conventional one. Can be increased by 20%. Further, since the pipe of the manifold 4 is a flexible pipe on the inner side, the manifold 4 can be put in the storage container 2a with the laminated battery 3 attached and the manifold pipe can be pulled out from the pipe flange outside the storage container 2a. Therefore, the space between the manifold 4 and the storage container 2a becomes small, and the storage container 2a can be prevented from having a large diameter. Furthermore, since the storage container 2a can be divided into upper and lower parts and the gas pipe 7 is connected in the lateral direction, the connection work becomes easy.

〔The invention's effect〕

As described above, according to the present invention, the space between the storage container and the installation space is small, the center of gravity of the stacked battery is lowered, and the storage capacity of the stacked battery with respect to the transport limit height is increased. It is possible to obtain a fuel cell by reducing the space between and, lowering the center of gravity of the laminated battery, and increasing the storage capacity of the laminated battery with respect to the transport limit height. Further, since the gas pipe 7 penetrates the manifold 4 and the ends of the manifold and the gas pipe are connected to each other by the flexible pipe inside the manifold, the space between the container and the manifold remains small, and the dimensions of the pipe are small. Can absorb changes.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of an embodiment of the fuel cell of the present invention, and FIG. 2 is a vertical sectional side view of a conventional fuel cell. 1 ... Installation base, 2a ... Storage container, 2b ... Upper storage container, 2c
… Lower storage container, 3… Stacked battery, 4… Manifold, 5
... Laminated base, 6 ... Fasteners, 7 ... Gas piping, 8 ... External equipment.

Claims (1)

[Claims] 1. A storage container provided on an installation base, a stacked battery in which the unit batteries are stacked in the storage container, and a manifold for supplying and discharging gas to and from the stacked battery, In a fuel cell in which a gas pipe for supplying / discharging gas from the outside is provided inside the manifold on the bottom side of the manifold, the storage container is formed so as to be separable into an upper part and a lower part, and the gas pipe is formed in the laminated battery. A fuel cell provided so as to penetrate the side wall of the storage container so as to face the side surface of the gas container, the gas pipe penetrates the manifold, and the manifold and the tip of the gas pipe are inside the manifold. A fuel cell characterized by being connected by flexible piping.