JPH11185789A - Portable power supply case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable power supply case using fuel cell with which the inside of a case is protected against rainwater, etc., and which can suppress temp. rise at the surface of the case or in auxiliary, etc., accommodated in the case. SOLUTION: A portable power supply case utilizing a fuel cell has a fuel reformer 2 and cooling fan 3 in a case 1 and an exhaust hole 4 over the case 1, wherein above the exhaust hole 4, an exhaust hole cover 5 is furnished covering the hole 4 and opening to the side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable power supply case using a fuel cell supplied with hydrogen by a reformer.

[0002]

2. Description of the Related Art Generally, a portable power supply case is used outdoors to prevent rainwater or the like from falling into the case or to prevent noise generated from a pump or the like built in the case from being outside the case. It is necessary to make the structure as tight as possible in order to suppress the propagation of air.

[0003]

In the meantime, fuel cell power generation is a method of generating power using hydrogen and oxygen based on the reverse principle of electrolysis of water. In this case, means for supplying hydrogen to the fuel cell includes: There are a method using a hydrogen storage alloy, and a method of producing a hydrogen-rich gas from a natural gas or the like by a reforming technique and supplying the gas to a fuel cell. The object of the present invention is a portable power supply case of a type that produces a hydrogen-rich gas by the latter reforming technology, and a reformer that generally produces a hydrogen-rich gas is also discharged from the reformer. Since the temperature of the exhaust gas becomes high, a cooling design for cooling the reformer in the case is an important issue.

That is, in a portable power supply case of a type using a fuel cell to which hydrogen is supplied by a reformer, high-temperature exhaust gas discharged from the reformer or high-temperature radiation from the reformer are used. There is a problem that the temperature of the case surface or the fuel cell, the desulfurizer, and other accessories contained in the case becomes high due to heat or the like, and the pressure loss is reduced in order to reduce the load on the cooling fan. There is also a need to reduce as much as possible, and it is desired to solve these problems.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned background art, and has an object to protect the inside of a case from rainwater when used outdoors and to store the case inside or outside the case. The use of a fuel cell, in which the reformer is supplied with low noise, reduces the pressure load on the cooling fan used, and suppresses the increase in the temperature of auxiliary equipment, etc. To provide a portable power supply case.

[0006]

A portable power supply case according to claim 1 of the present invention is a portable power supply case using a fuel cell having a reformer, a cooling fan, and an exhaust port above the case, An exhaust port cover that covers the exhaust port and is opened to the side is provided above the exhaust port.

Therefore, in this case, since the upper side of the exhaust port is covered with the exhaust port cover, rainwater or the like is prevented from entering the case from the exhaust port when used outdoors. The inside of the case is protected. Moreover, the high-temperature exhaust gas discharged from the reformer is discharged from the exhaust port to the outside of the case through the opening of the exhaust port cover together with the high-temperature radiant heat, etc. It is also possible to prevent the temperature of auxiliary equipment and the like from becoming high.

According to a second aspect of the present invention, there is provided the portable power supply case according to the first aspect, wherein the exhaust port cover is formed of a substantially semi-cylindrical tube having one end closed and opened to one side of the other end. It is characterized by having.

Therefore, in this case, in particular, since the exhaust port cover is formed of a substantially semi-cylindrical tube whose one end is closed and is opened to one side of the other end, the flow of exhaust gas flows along the substantially semi-cylindrical exhaust port cover. The guide is smoothly guided to one side, and the exhaust efficiency is improved.

According to a third aspect of the present invention, there is provided the portable power supply case according to the first aspect, wherein the exhaust port cover is formed of a substantially rectangular flat plate having two closed sides and is opened to the remaining two sides. It is characterized by having made it.

Therefore, in this case, in particular, since the exhaust port cover is formed of a substantially rectangular flat plate having two closed sides and is opened to the remaining two sides, the exhaust port is exhausted to the two sides of the exhaust port cover. The displacement is increased, and the exhaust efficiency is improved.

A portable power supply case according to a fourth aspect of the present invention is the portable power supply case according to the first aspect, wherein a plurality of slits that are inclined toward the opening side of the exhaust port cover are provided in the exhaust port. Is what you do.

Therefore, in this case, in particular, since the flow of the exhaust gas is guided by the plurality of inclined slits juxtaposed in the exhaust port and directed toward the opening of the exhaust port cover, the cooling air is smoothly exhausted and used. The pressure on the fan is reduced. Moreover, at this time, since the flow of the exhaust gas is unlikely to directly hit the inner surface of the exhaust port cover, a rise in the temperature of the outer surface of the exhaust port cover is also prevented.

According to a fifth aspect of the present invention, there is provided the portable power supply case according to the first aspect, wherein a plurality of guide vanes which are curved and inclined toward the opening side of the exhaust port cover are provided in the exhaust port cover. It is characterized by being juxtaposed.

Therefore, in this case, in particular, since the flow of the exhaust gas is guided by the plurality of curved and inclined guide vanes arranged in parallel in the exhaust port cover and directed toward the opening of the exhaust port cover, the exhaust gas is smoothly exhausted. Thus, the pressure load on the cooling fan used is reduced. Moreover, at this time, since the flow of the exhaust gas is unlikely to directly hit the inner surface of the exhaust port cover, a rise in the temperature of the outer surface of the exhaust port cover is also prevented.

According to a sixth aspect of the present invention, there is provided the portable power supply case according to the first aspect, wherein a convex and concave portion is formed on an upper surface of the reformer located below the exhaust port. Is what you do.

Therefore, in this case, particularly, since the concave and convex portions are formed on the upper surface of the reformer located below the exhaust port, the upper surface of the reformer on which the convex and concave portions are formed and the exhaust port are formed. The view factor for radiant heat transfer between the upper surface of the exhaust port cover and the lower surface of the exhaust port cover is reduced, thereby preventing the temperature of the outer surface of the exhaust port cover from rising.

A portable power supply case according to a seventh aspect of the present invention is the portable power supply case according to the first aspect, wherein the reformer is disposed below the exhaust port, and the exhaust port located above the exhaust port. The projections and depressions are formed on the lower surface of the cover.

Therefore, in this case, in particular, since the convex and concave portions are formed on the lower surface of the exhaust port cover located above the exhaust port, the lower surface of the exhaust port cover having the convex and concave portions and the lower portion of the exhaust port are formed. The view factor related to radiant heat transfer between the upper surface of the reformer located on the side and the radiant heat transfer is reduced, and the temperature rise on the outer surface of the exhaust port cover is prevented.

[0020] A portable power supply case according to an eighth aspect of the present invention is the portable power supply case according to the first aspect, wherein an inner surface of the exhaust port cover is subjected to a rust-proof treatment.

Therefore, in this case, in particular, since the inner surface of the exhaust port cover is subjected to a rust-preventive treatment, the rust of this portion is prevented, and therefore, the emissivity of this portion over time is also prevented. As a result, a rise in the temperature of the outer surface of the exhaust port cover after a lapse of time is prevented.

A portable power supply case according to a ninth aspect of the present invention is the portable power supply case according to the first aspect, wherein a curved surface portion for inducing a Coanda effect is formed at an edge of an exhaust port. is there.

Therefore, in this case, in particular, a Coanda effect is induced in the flow of the exhaust gas by the curved surface portion formed at the rim of the exhaust port, so that the flow of the exhaust gas is prevented from separating the boundary layer and generating vortices. It becomes smooth and the pressure load on the cooling fan used is reduced.

A portable power case according to a tenth aspect of the present invention is the portable power case according to the first aspect, wherein a cooling fan is disposed below the reformer to cover the periphery of the reformer. A radiation shielding plate having a shape of a letter is provided.

Therefore, in this case, especially, the cooling fan is located below the reformer, and the periphery of the reformer is covered with the cylindrical radiation shielding plate, so that the cooling fan is discharged from the reformer. The exhaust gas is smoothly guided to the upper exhaust port while being cooled by the cooling fan. Moreover, at this time, the radiant heat from the reformer is also blocked by the radiation shield plate, and the heat transfer to other auxiliaries and the like accommodated in the case is reduced. The rise is reliably suppressed.

The portable power supply case according to the eleventh aspect of the present invention is the portable power supply case according to the first aspect, wherein a sound absorbing material is provided along the inner surface of the exhaust port cover.

Therefore, in this case, in particular, since the sound absorbing material is provided along the inner surface of the exhaust port cover, noise from the exhaust gas flowing through the exhaust port cover is absorbed by the sound absorbing material and is eliminated, and noise to the outside of the case is eliminated. Leakage is reduced.

[0028]

1 to 3 show the first embodiment of the present invention.
2 shows a first embodiment corresponding to a portable power supply using a fuel cell having a reformer 2, a cooling fan 3, and an exhaust port 4 above the case 1 in the case 1. An exhaust port cover 5 is provided on the upper side of the exhaust port 4 so as to cover the exhaust port 4 and open laterally. In this case, the exhaust port cover 5 is a substantially semi-cylindrical cylinder having one end closed. It is formed and opened to one side of the other end.

The case 1 has a rectangular parallelepiped box shape and houses therein a reformer 2, a cooling fan 3, auxiliary equipment such as a fuel cell a and a desulfurizer, or pipes. The fuel cell "a" generates power by the use of hydrogen and oxygen in the reverse principle of electrolysis of water. In the reformer 2, a hydrogen-rich gas is produced from natural gas or the like by a reforming technique, and the gas is produced in the same manner. It is supplied to the fuel cell a.

An exhaust port 4 is arranged and formed in the middle of the upper surface of the case 1, and an exhaust port cover 5 extends from the exhaust port 4 to the edge of the case 2. The exhaust port cover 5 is opened at the portion. The reformer 2 is disposed immediately below the exhaust port 4, and the high-temperature exhaust gas 6 is discharged upward from the reformer 2. At this time, the cooling air 7 sent from the cooling fan 3 arranged and fixed on the upper part of the inner surface of the side wall of the case 2 is mixed with the exhaust gas 6, and the cooled mixed gas 8 flows from the exhaust port 4 to the exhaust port cover 5. The air is exhausted out of the case 1 through the opening. High-temperature radiant heat 9 released from the reformer 2 is also cooled together with the gas mixture 8 and discharged out of the case 1.

Therefore, in the portable power supply case of the first embodiment, since the upper side of the exhaust port 4 is covered by the exhaust port cover 5, when used outdoors,
Rainwater or the like is prevented from entering the case 1 from the exhaust port 4, and the case 1 is protected. In addition, the high-temperature exhaust gas 6 discharged from the reformer 2 is exhausted from the exhaust port 4 to the outside of the case 1 through the opening of the exhaust port cover 5 through the opening of the exhaust port cover 5 as a cooled mixed gas 8 together with the high-temperature radiant heat 9. Therefore, the temperature of the surface of the case 1 and the fuel cell a and the auxiliary devices housed in the inside of the case 1 are prevented from increasing.

Further, in this case, since the exhaust port cover 5 is formed of a substantially semi-cylinder having one end closed and opened to one side of the other end, the flow of the mixed gas 8 to be exhausted is substantially the same as that of the semi-cylindrical exhaust. It is smoothly guided to one side along the mouth cover 5, and the exhaust efficiency is improved. Further, since one end of the substantially semi-cylinder in which the exhaust port cover 5 is closed is formed as a curved wall surface, the flow of the mixed gas 8 is guided along the curved wall surface and smoothly flows to the opening of the exhaust port cover 5. Exhausted.

FIG. 4 shows a second embodiment corresponding to the first and third aspects of the present invention. In the portable power supply case of the second embodiment, the exhaust port cover 5 is a substantially rectangular flat plate whose two sides are closed. And is opened to the side of the remaining two sides. Therefore, in this case, the air is exhausted to the two sides of the exhaust port cover 5 to increase the exhaust amount, and the exhaust efficiency is improved. Otherwise, the configuration is the same as that of the portable power supply case of the first embodiment, and the same operation and effect as those of the portable power supply case of the first embodiment are exerted.

FIG. 5 shows a third embodiment corresponding to the first, second and fourth aspects of the present invention. In the portable power supply case of the third embodiment, the opening of the exhaust port cover 5 is provided in the exhaust port 4. A plurality of slits 10 inclined to the side are provided side by side. Therefore, in this case, the flow of the mixed gas 8 is guided by the plurality of inclined slits 10 arranged in the exhaust port 4 and directed to the opening of the exhaust port cover 5, so that the gas is smoothly exhausted and used. The pressure load on the cooling fan 3 is reduced.

Moreover, at this time, the flow of the mixed gas 8 is unlikely to directly hit the inner surface of the exhaust port cover 5, and the cooling air 7 sent from the cooling fan 3 is directly discharged from the side of the exhaust port 4.
The cooling air 7 flows along the inner surface of the exhaust port cover 5 so that the exhaust port cover 5 is efficiently cooled, and therefore, the temperature rise on the outer surface of the exhaust port cover 5 is effective. Is prevented. Otherwise, the configuration is the same as that of the portable power supply case of the first embodiment, and the same operation and effect as those of the portable power supply case of the first embodiment are exerted.

FIG. 6 shows a fourth embodiment corresponding to the first, second and fifth aspects of the present invention. In the portable power supply case of the fourth embodiment, the exhaust port cover 5 is provided inside the exhaust port cover 5. Guide vanes inclined in a curved shape to the opening side of
11 are juxtaposed. Therefore, in this case, the mixed gas 8
Is guided by a plurality of curved and inclined guide vanes 11 arranged in parallel in the exhaust port cover 5.
, The pressure load on the cooling fan 3 which is smoothly exhausted and used is reduced.

In this case, the flow of the mixed gas 8 is unlikely to directly hit the inner surface of the exhaust port cover 5, and the cooling air 7 sent from the cooling fan 3 is directly blown from the side by the exhaust port 4.
The cooling air 7 flows along the inner surface of the exhaust port cover 5 so that the exhaust port cover 5 is efficiently cooled, and therefore, the temperature rise on the outer surface of the exhaust port cover 5 is effective. Is prevented. Otherwise, the configuration is the same as that of the portable power supply case of the first embodiment, and the same operation and effect as those of the portable power supply case of the first embodiment are exerted.

FIG. 7 shows a fifth embodiment corresponding to the first, second and sixth aspects of the present invention. In the portable power supply case of the fifth embodiment, the reformer located below the exhaust port 4 is provided. The convex and concave portions 12 are formed on the upper surface of the container 2. Therefore, in this case, the view factor relating to radiant heat transfer between the upper surface of the reformer 2 in which the concave and convex portions 12 are formed and the lower surface of the exhaust port cover 5 located above the exhaust port 4 becomes small, The temperature rise on the outer surface of the exhaust port cover 5 is prevented. Also, convex and concave
When each of the 12 irregularities is inclined, the radiant heat 9 is diffused, and the temperature rise on the outer surface of the exhaust port cover 5 is further suppressed. In addition,
Otherwise, the portable power supply case is configured in the same manner as the portable power supply case of the first embodiment, and the same operation and effect as in the portable power supply case of the first embodiment are exerted.

FIG. 8 shows a sixth embodiment corresponding to the first, second and seventh aspects of the present invention. In the portable power supply case of the sixth embodiment, the reformer 2 is disposed below the exhaust port 4. Are arranged on the lower surface of the exhaust port cover 5 located above the exhaust port 4. Therefore, in this case, the view factor relating to the radiant heat transfer between the lower surface of the exhaust port cover 5 in which the concave and convex portions 13 are formed and the upper surface of the reformer 2 located below the exhaust port 4 is reduced. In addition, a rise in the temperature of the outer surface of the exhaust port cover 5 is prevented. Further, when each of the projections and depressions of the projections and depressions 13 is inclined, the radiant heat 9 is diffused, and the temperature rise on the outer surface of the exhaust port cover 5 is further suppressed. Otherwise, the configuration is the same as that of the portable power supply case of the first embodiment, and the same operation and effect as those of the portable power supply case of the first embodiment are exerted.

FIG. 9 shows a seventh embodiment corresponding to the first, second, and eighth aspects of the present invention. In the portable power supply case of the seventh embodiment, the inner surface of the exhaust port cover 5 is subjected to rust prevention treatment. I am giving. Therefore, in this case, a rust-preventive treatment layer 14 is formed on the inner surface of the exhaust port cover 5 to prevent rust in this portion, and therefore, increase in emissivity in this portion with time is also prevented. The temperature rise on the outer surface of the exhaust port cover 5 is prevented. Otherwise, the configuration is the same as that of the portable power supply case of the first embodiment, and the same operation and effect as those of the portable power supply case of the first embodiment are exerted.

FIG. 10 shows an eighth embodiment corresponding to the first, second, and ninth aspects of the present invention. In the portable power supply case of the eighth embodiment, a Coanda effect is induced at the rim of the exhaust port 4. A curved surface portion 15 to be formed is formed. Therefore,
In this case, a Coanda effect is induced in the flow of the mixed gas 8 by the curved surface portion 15, and the mixed gas 8 smoothly flows along the curved surface portion 15 from the curved surface portion 15 to the inner surface of the exhaust port cover 5. Separation of layers and generation of vortices are prevented and smoothness is achieved, and the pressure load on the cooling fan 3 used is reduced. Otherwise, the configuration is the same as that of the portable power supply case of the first embodiment, and the same operation and effect as those of the portable power supply case of the first embodiment are exerted.

FIG. 11 shows a ninth embodiment corresponding to the first, second and tenth aspects of the present invention. In the portable power supply case of the ninth embodiment, a cooling fan 3 is provided below the reformer 2. And a cylindrical radiation shielding plate 16 covering the periphery of the reformer 2 is provided. Therefore, in this case, the reformer 2
The exhaust gas 6 discharged from the cooling fan 3 is smoothly guided by the cylindrical radiation shielding plate 16 to the upper exhaust port 4 while being cooled together with the cooling air 7 sent out from the cooling fan 3. In addition, at this time, the radiant heat 9 from the reformer 2 is also blocked by the radiation shield plate 16 and the heat transfer to other auxiliaries and the like accommodated in the case 1 is reduced. The rise in temperature of such objects is surely suppressed.

Also, in the portable power supply case of the ninth embodiment, since the upper end portion of the cylindrical radiation shielding plate 16 is formed so as to be gradually reduced in diameter, the middle portion of the radiation shielding plate 16 is formed. The mixed gas 8 is surely guided to the exhaust port 4 having a smaller diameter than the cylinder diameter without spreading into the case 1.
Further, since the through hole 17 is formed in the lower part of the cylindrical radiation shielding plate 16, a part of the cooling air 7 sent from the cooling fan 3 is relatively The cooling air 7 also cools the surrounding fuel cells a and auxiliary devices. Otherwise, the configuration is the same as that of the portable power supply case of the first embodiment, and the same operation and effect as those of the portable power supply case of the first embodiment are exerted.

FIG. 12 shows a tenth embodiment corresponding to the first, second and eleventh aspects of the present invention. In the portable power supply case of the tenth embodiment, the sound absorbing member made of glass wool is formed on the inner surface of the exhaust port cover 5. Material 18 is located alongside. Therefore, in this case, even if some noise source such as a pump is disposed in the case 1, the mixed gas 8 flowing through the exhaust port cover 5
Thus, the noise from the noise source is absorbed by the sound absorbing material 18 and eliminated, and the leakage of the noise outside the case 1 is reduced. In addition,
Otherwise, the portable power supply case is configured in the same manner as the portable power supply case of the first embodiment, and the same operation and effect as in the portable power supply case of the first embodiment are exerted.

Further, the portable power supply case of the present invention may be provided with an appropriate combination of the components corresponding to the claims of the plurality of embodiments.

[0046]

As described above, in the portable power supply case according to the first aspect of the present invention, when used outdoors, rainwater or the like is prevented from entering, and the inside of the case is protected. The high-temperature exhaust gas exhausted from the case is exhausted to the outside of the case without hindrance, and a rise in the temperature of the surface of the case and auxiliaries and the like accommodated in the case is suppressed.

In the portable power supply case according to the second aspect of the present invention, in particular, the flow of the exhaust gas is smoothly guided along the substantially semi-cylindrical exhaust port cover to one side opening thereof, and the exhaust efficiency is improved. Is improved.

In the portable power supply case according to the third aspect of the present invention, in particular, the air is exhausted from the opening on the two sides of the exhaust port cover to increase the exhaust amount, thereby improving the exhaust efficiency.

In the portable power supply case according to the fourth aspect of the present invention, in particular, the gas is smoothly exhausted by the guide action of the slit, so that the pressure load on the cooling fan is reduced and the flow of the exhaust is reduced. It is difficult to directly hit the inner surface of the mouth cover, and the temperature rise of the outer surface of the exhaust cover is also prevented.

In the portable power supply case according to the fifth aspect of the present invention, in particular, the exhaust is smoothly exhausted by the guide action of the guide vanes, so that the pressure load on the cooling fan is reduced and the exhaust flow is reduced. It is difficult to directly hit the inner surface of the exhaust port cover, and the temperature rise on the outer surface of the exhaust port cover is also prevented.

Further, in the portable power supply case according to the sixth aspect of the present invention, particularly, the view factor relating to radiant heat transfer between the upper surface of the reformer in which the projections and depressions are formed and the lower surface of the exhaust port cover is small. As a result, a rise in the temperature of the outer surface of the exhaust port cover is prevented.

In the portable power supply case according to claim 7 of the present invention, in particular, the view factor relating to radiant heat transfer between the lower surface of the exhaust port cover in which the concave and convex portions are formed and the upper surface of the reformer is small. As a result, a rise in the temperature of the outer surface of the exhaust port cover is prevented.

In the portable power supply case according to the eighth aspect of the present invention, in particular, the rust on the inner surface of the exhaust port cover is prevented, so that the emissivity of this portion over time is also prevented. The temperature rise on the outer surface of the exhaust port cover after the passage of time is prevented.

In the portable power supply case according to the ninth aspect of the present invention, in particular, the flow of the exhaust gas becomes smooth due to the Coanda effect of the curved surface formed at the edge of the exhaust port, and the pressure on the cooling fan is reduced. The burden is reduced.

Further, in the portable power supply case according to claim 10 of the present invention, in particular, the exhaust gas discharged from the reformer is smoothly guided to the upper exhaust port while being cooled. The radiant heat from the reformer is also blocked by the radiation shield plate, so that the temperature rise of other accessories and the like accommodated in the case is reliably suppressed.

Further, in the portable power supply case according to the eleventh aspect of the present invention, in particular, the leakage of noise to the outside of the case is reduced by the sound absorbing function of the sound absorbing material provided along the inner surface of the exhaust port cover. .

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view showing a portable power supply case according to a first embodiment of the present invention.

FIG. 2 is an external perspective view showing the portable power supply case.

FIG. 3 is a schematic perspective view showing the portable power supply case.

FIG. 4 is an external perspective view showing a portable power supply case according to a second embodiment of the present invention.

FIG. 5 is a vertical sectional view showing a main part of a portable power supply case according to a third embodiment of the present invention.

FIG. 6 is an essential part longitudinal cross sectional view showing a portable power supply case according to a fourth embodiment of the present invention.

FIG. 7 is a schematic longitudinal sectional view showing a portable power supply case according to a fifth embodiment of the present invention.

FIG. 8 is an essential part longitudinal cross sectional view showing a portable power supply case according to a sixth embodiment of the present invention.

FIG. 9 is a vertical sectional view showing a main part of a portable power supply case according to a seventh embodiment of the present invention.

FIG. 10 is a vertical sectional view showing a main part of a portable power supply case according to an eighth embodiment of the present invention.

FIG. 11 is a schematic vertical sectional view showing a portable power supply case according to a ninth embodiment of the present invention.

FIG. 12 is an essential part longitudinal cross sectional view showing a portable power supply case according to a tenth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Reformer 3 Cooling fan 4 Exhaust port 5 Exhaust port cover 10 Slit 11 Guide vane 12 Concavity and convexity 13 Concavity and convexity 14 Rust prevention treatment layer 15 Curved surface part 16 Radiation shielding plate 18 Sound absorbing material

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] February 9, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

Therefore, in this case, in particular, since the exhaust port cover is formed of a substantially semi-cylindrical tube whose one end is closed and is opened to one side of the other end, the flow of exhaust gas flows along the substantially semi-cylindrical exhaust port cover. It is guided smoothly to one side towards Te.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

Therefore, in this case, in particular, since the exhaust port cover is formed of a substantially rectangular flat plate having two closed sides and is opened to the remaining two sides, the exhaust port is exhausted to the two sides of the exhaust port cover. , exhaust efficiency is improved.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0030

[Correction method] Change

[Correction contents]

An exhaust port 4 is arranged and formed in the middle of the upper surface of the case 1, and an exhaust port cover 5 extends from the exhaust port 4 to the edge of the case 2. The exhaust port cover 5 is opened at the portion. The reformer 2 is disposed immediately below the exhaust port 4, and the high-temperature exhaust gas 6 is discharged upward from the reformer 2. At this time, the cooling air 7 sent from the cooling fan 3 arranged and fixed on the upper part of the inner surface of the side wall of the case 2 is mixed with the exhaust gas 6, and the cooled mixed gas 8 flows from the exhaust port 4 to the exhaust port cover 5. opening Ru is exhausted into the case 1 out through.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0032

[Correction method] Change

[Correction contents]

Further, in this case, since the exhaust port cover 5 is formed of a substantially semi-cylinder having one end closed and opened to one side of the other end, the flow of the mixed gas 8 to be exhausted is substantially the same as that of the semi-cylindrical exhaust. along the mouth cover 5 Ru is smoothly guided to the one side one.
Further, since one end of the substantially semi-cylinder in which the exhaust port cover 5 is closed is formed as a curved wall surface, the flow of the mixed gas 8 is guided along the curved wall surface and smoothly flows to the opening of the exhaust port cover 5. Exhausted.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0033

[Correction method] Change

[Correction contents]

FIG. 4 shows a second embodiment corresponding to the first and third aspects of the present invention. In the portable power supply case of the second embodiment, the exhaust port cover 5 is a substantially rectangular flat plate whose two sides are closed. And is opened to the side of the remaining two sides. Therefore, in this case, the air is exhausted to the two sides of the exhaust port cover 5, and the exhaust efficiency is improved. Otherwise, the configuration is the same as that of the portable power supply case of the first embodiment, and the same operation and effect as those of the portable power supply case of the first embodiment are exerted.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0035

[Correction method] Change

[Correction contents]

Moreover, at this time, the flow of the mixed gas 8 is unlikely to directly hit the inner surface of the exhaust port cover 5, and the cooling air 7 sent from the cooling fan 3 is directly discharged from the side of the exhaust port 4.
The cooling air 7 easily flows along the inner surface of the exhaust port cover 5, so that the temperature rise on the outer surface of the exhaust cover 5 is effectively prevented. Otherwise, the configuration is the same as that of the portable power supply case of the first embodiment, and the same operation and effect as those of the portable power supply case of the first embodiment are exerted.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0037

[Correction method] Change

[Correction contents]

In this case, the flow of the mixed gas 8 is unlikely to directly hit the inner surface of the exhaust port cover 5, and the cooling air 7 sent from the cooling fan 3 is directly blown from the side by the exhaust port 4.
As the cooling air 7 flows along the inner surface of the exhaust port cover 5, a rise in the temperature of the outer surface of the exhaust port cover 5 is effectively prevented. Otherwise, the configuration is the same as that of the portable power supply case of the first embodiment, and the same operation and effect as those of the portable power supply case of the first embodiment are exerted.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0044

[Correction method] Change

[Correction contents]

FIG. 12 shows a tenth embodiment corresponding to the first, second and eleventh aspects of the present invention. In the portable power supply case of the tenth embodiment, the sound absorbing member made of glass wool is formed on the inner surface of the exhaust port cover 5. Material 18 is located alongside. Therefore, in this case, it is arranged some noise source such as a pump, within the case 1, Noise is eliminated is absorbed by the sound absorbing member 18, leakage of noise to the casing 1 outside is reduced. In addition,
Otherwise, the portable power supply case is configured in the same manner as the portable power supply case of the first embodiment, and the same operation and effect as in the portable power supply case of the first embodiment are exerted.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0047

[Correction method] Change

[Correction contents]

[0047] Further, in the portable power supply case according to claim 2 of the present invention, in particular, smoothly guided into the opening of the one side and the exhaust flow substantially along the air outlet cover semicylindrical.

[Procedure amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0048

[Correction method] Change

[Correction contents]

Further, in the portable power supply case according to the third aspect of the present invention, the air is exhausted from the openings on the two sides of the exhaust port cover, thereby improving the exhaust efficiency.

Claims (11)

[Claims] 1. A portable power supply case using a fuel cell having a reformer, a cooling fan, and an exhaust port above the case, wherein the exhaust port covers the exhaust port above the exhaust port and opens laterally. Portable power case with cover. 2. The portable power supply case according to claim 1, wherein the exhaust port cover is formed in a substantially semi-cylindrical shape having one end closed and opened to one side of the other end. 3. The portable power supply case according to claim 1, wherein the exhaust port cover is formed of a substantially rectangular flat plate having two sides closed and opened to the remaining two sides. 4. The portable power supply case according to claim 1, wherein a plurality of slits inclined toward the opening side of the exhaust port cover are provided in the exhaust port. 5. The portable power supply case according to claim 1, wherein a plurality of guide vanes inclined in a curved shape toward the opening side of the exhaust port cover are arranged in the exhaust port cover. 6. The portable power supply case according to claim 1, wherein an uneven portion is formed on an upper surface of the reformer located below the exhaust port. 7. The portable power supply case according to claim 1, wherein a reformer is arranged below the exhaust port, and a concave portion is formed on a lower surface of the exhaust port cover located above the exhaust port. . 8. The portable power supply case according to claim 1, wherein an inner surface of the exhaust port cover is subjected to a rust prevention treatment. 9. The portable power supply case according to claim 1, wherein a curved surface portion for inducing a Coanda effect is formed at an edge of the exhaust port. 10. The portable power supply case according to claim 1, wherein a cooling fan is disposed below the reformer, and a cylindrical radiation shielding plate is provided to cover the periphery of the reformer. 11. The portable power supply case according to claim 1, wherein a sound absorbing material is provided along an inner surface of the exhaust port cover.