JPH0665063B2 - Fuel cell storage container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a container for fuel cells, and more particularly to an airtight container to which an inert gas is supplied.

(B) Conventional technology A pressurized fuel cell is housed in a pressure-resistant container, and an inert gas having a pressure approximately equal to the pressure of each reaction gas supplied to the cell under pressure is supplied to the container. On the other hand, also in the atmospheric pressure fuel cell, recently, a method of accommodating the gas in a container and supplying an inert gas having a pressure higher than the atmospheric pressure in order to improve safety is adopted. Of course, the container in this case does not need pressure resistance.

Such a battery container is composed of a base supporting the battery and a cover hermetically connected to the base, and is separable at the connecting portion.

As shown in Fig. 3, the inert gas to the conventional container (1) is discharged by the introduction pipe (4) penetrating the base (2) and the discharge pipe (5) attached to the top surface of the cover (3). However, there is a drawback that the pipe to the outlet pipe (5) must be removed when the cover (3) is removed. On the other hand, as shown in Fig. 4, the base
If the introduction pipe (4) and the discharge pipe (5) are provided through (3), the above-mentioned drawbacks will be solved, but if hydrogen gas leaks from the battery (6), it will remain at the upper part of the container (1). It has a drawback that it is difficult to be discharged quickly together with the introduced inert gas.

(C) Purpose The present invention eliminates the above-mentioned drawbacks of the prior art by eliminating the need to remove the piping of the outlet pipe when removing the cover of the container and by rapidly discharging hydrogen gas that tends to accumulate in the upper part of the container. .

D) Structure The battery container of the present invention comprises a base for supporting the battery and a cover that is hermetically attached to the base to cover the battery, and includes an inert gas inlet pipe and an outlet pipe penetrating the base. The cover is opened at the bottom and the top, respectively.

E) Embodiments Embodiments of the present invention will be described with reference to the drawings, and the corresponding parts are denoted by the same symbols as those in the drawings.

FIG. 1 is a sectional view of the container, and FIG. 2 is a partially cutaway perspective view. The storage container (1) for the battery (6) is a base (2) and a cover (3) hermetically attached to the base. Consists of. The inert gas inlet pipe (4) and the inert gas outlet pipe (5) are both provided so as to penetrate the base (2). The inlet pipe (4) is open at the bottom of the cover (3), while the outlet pipe (5) extends along the inner wall of the cover and its bent end (5) 'is the top surface inside the cover (3). There is an opening nearby. The inlet pipe (4) and the outlet pipe (5) have a supply regulating valve (7), respectively.
And a pressure adjusting valve (8), and the internal pressure of the container (1) is maintained at a set pressure by adjusting these valves (7) and (8).

The hydrogen gas leaking from the battery (6) is light and collects in the upper part of the container (1), but is rapidly sucked together with the inert gas from the bent end opening of the extension outlet pipe (5) and discharged to the outside. ,battery
Prevent the danger of explosion without fear of mixing with the air leaked from (6).

The above examples have been described for the case of the pressurized fuel cell using the pressure resistant container, but in the case of the normal pressure type fuel cell, the pressure resistant container and the pressure regulating valve are not required, and the nitrogen gas close to the normal pressure is the same as the above embodiment. It may be circulated in the container with the above configuration. In this case, air may be used as the gas in the container instead of nitrogen gas.

F) Effect According to the present invention, hydrogen gas leaked from the battery can be quickly discharged to the outside of the container, so that the hydrogen gas does not accumulate in the upper part of the container and explodes, thereby preventing the risk of fire. Inlet gas introduction and derivation Since each pipe is provided at the base of the container and there is no derivation pipe in the cover, removal of the cover can be easily done without removing the piping of the derivation pipe and improvement of maintenance is achieved. It

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a storage container of the present invention, FIG. 2 is a partially cutaway perspective view of the same, and FIGS. 3 and 4 are all partially broken perspective views of conventional products. (1) …… Storage container, (2) …… Base, (3) …… Cover, (4)
…… Introduction pipe, (5) …… Outlet pipe, (5) ′ …… Bend end, (6)…
…battery.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Rokuya Saito 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (56) References JP-A-61-42876 (JP, A) JP-A-SHO 59-138076 (JP, A)

Claims (2)

[Claims] 1. A base for supporting a battery, and a cover which is hermetically attached to the base to cover the battery, wherein an inert gas inlet pipe and an outlet pipe provided through the base are provided in the cover. Container for a fuel cell, which is open at the bottom and the top of the fuel cell, respectively 2. The container for a fuel cell according to claim 1, wherein the extended end of the outlet pipe is bent along the inner top surface of the cover.