JP2009224246A - Fuel cell device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuel cell device capable of efficiently suppressing temperature rise in the outer packaging case. <P>SOLUTION: The fuel cell device includes an exhaust port 8 for exhausting air in a module housing chamber 5 in the upper part of the outer packaging case 2, constituting a module housing chamber 5; since a plurality of air flow holes 9 for supplying air in an auxiliaries housing chamber 6 to the module housing chamber 5 are formed at the bottom periphery of the fuel cell module 7, the temperature at the inside of the module housing chamber 5 can be lowered efficiently;and in addition, the temperature rise of the outer packaging case 2 can be suppressed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fuel cell device in which a fuel cell module in which a plurality of fuel cells are accommodated in an exterior case.

  In recent years, as a next-generation energy, a fuel cell stack in which a plurality of fuel cells that can obtain electric power using hydrogen-containing gas and air (oxygen-containing gas) are arranged in parallel and electrically connected in series, Various fuel cell stack devices fixed to a manifold that supplies reaction gas to the fuel cells, fuel cell modules that house the fuel cell stack devices, and fuel cell devices that contain fuel cell modules have been proposed ( For example, see Patent Document 1).

  By the way, when the fuel cell is a solid oxide fuel cell, the heat generated by the power generation of the fuel cell becomes high. Thereby, the radiant heat from the fuel cell module also becomes high temperature, and there is a possibility that the outer case constituting the module storage chamber for storing the fuel cell module becomes high temperature.

Therefore, it has been proposed to provide a ventilation fan at the exhaust port of the exterior case to exhaust the air in the module housing chamber to the outside of the fuel cell device (see, for example, Patent Document 2).
JP 2007-59377 A JP 2006-252964 A

  However, when the air in the module storage room is exhausted using a ventilation fan, the air in the vicinity of the exhaust port is easily ventilated, but it is difficult to sufficiently ventilate the air far away from the ventilation fan. There is a problem that some temperatures rise.

  In addition, when the gap between the fuel cell module and the outer case is narrow, the air in the narrow gap is not sufficiently ventilated, and the temperature of a part of the outer case may increase.

  SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a fuel that can efficiently exhaust the air in the module housing chamber that houses the fuel cell module to the outside of the fuel cell device, and can efficiently suppress the temperature rise of the outer case. The object is to provide a battery device.

  A fuel cell device of the present invention includes a fuel cell module in which a plurality of fuel cells are housed in a rectangular parallelepiped storage container in an outer case, and an auxiliary device for operating the fuel cell module. A fuel cell device partitioned into a module storage chamber in which the fuel cell module is stored and an auxiliary device storage chamber in which the auxiliary device is stored, by a partition member provided in the exterior case, An exhaust port for exhausting air in the module storage chamber is provided at an upper portion of the outer case constituting the storage chamber, and air in the auxiliary device storage chamber is introduced into the module storage chamber around the bottom of the fuel cell module. It is characterized by having a plurality of air circulation holes for supplying.

  In such a fuel cell device, the air in the accessory storage chamber is supplied into the module storage chamber from a plurality of air circulation holes provided around the bottom of the fuel cell module. Ventilation can be performed, and an increase in the temperature of the outer case can be efficiently suppressed.

  In the fuel cell device of the present invention, it is preferable that an air blower is provided in the auxiliary equipment storage chamber for supplying air in the auxiliary equipment storage room to the module storage room through the air circulation hole.

  In such a fuel cell device, an air blower is provided to supply air in the accessory storage chamber to the module storage chamber through the air flow hole in the accessory storage chamber. It can be supplied to the module storage chamber, and an increase in the temperature of the outer case can be efficiently suppressed.

  In the fuel cell device of the present invention, it is preferable that the fuel cell module is disposed on a pedestal member disposed on the partition member, and at least the air circulation hole is provided in the pedestal member. .

  In such a fuel cell device, since the fuel cell module is disposed on the pedestal member disposed on the partition member, and at least the pedestal member is provided with an air flow hole, the bottom of the fuel cell module is provided. The air in the accessory storage chamber can be efficiently circulated around, and the air in the module storage chamber can be efficiently ventilated. Thereby, the temperature rise of the exterior case can be efficiently suppressed.

  In the fuel cell device of the present invention, it is preferable that the air circulation hole is provided at least in the partition member.

  In such a fuel cell device, since the air circulation hole is provided at least in the partition member, the air in the module housing chamber can be efficiently ventilated, and the rise in the temperature of the outer case can be efficiently suppressed. Can do.

  Further, in the fuel cell device of the present invention, the exhaust port is provided in one side wall of the exterior case constituting the module housing chamber, and the air circulation hole is provided in each of the base member and the partition member. And the outlet of the air circulation hole provided in the pedestal member is provided to face the side wall of each outer case adjacent to the side wall of the outer case having the exhaust port, and the partition member It is preferable that an outlet of the air circulation hole provided in is provided between a side wall of the outer case and the fuel cell module disposed to face the side wall having the exhaust port.

  In such a fuel cell device, the outlet of the air circulation hole provided in the pedestal member is provided facing the side wall of each outer case adjacent to the side wall of the outer case having the exhaust port, and the partition member Since the outlet of the air circulation hole provided in the space is provided between the side wall of the outer case and the fuel cell module disposed to face the side wall having the exhaust port, the air in the auxiliary equipment storage chamber is 3 It will be supplied to the module storage chamber from the direction. Thereby, the air in a module storage room can be ventilated efficiently, and the temperature rise of an exterior case can be suppressed efficiently.

  Further, in the fuel cell device of the present invention, the exhaust port is provided in one side wall of the exterior case constituting the module housing chamber, and the air circulation hole is provided in each of the base member and the partition member. In addition, it is preferable that an outlet of the air circulation hole provided in the pedestal member is provided on a side wall side of the exterior case disposed to face the side wall having the exhaust port.

  In such a fuel cell device, the outlet of the air circulation hole provided in the pedestal member is provided on the side wall side of the outer case disposed opposite to the side wall having the exhaust port, that is, at a site far from the exhaust port. Therefore, air at a location farther from the exhaust port can be efficiently flowed toward the exhaust port, and an increase in the temperature of the exterior case can be efficiently suppressed.

  Further, in the fuel cell device of the present invention, after the air in the accessory housing chamber circulates through the partition member, the air is supplied from the air circulation hole provided in the partition member into the module housing chamber. It is preferable that a part of the air flowing through the partition member is supplied into the module housing chamber from the air flow hole provided in the base member after flowing through the base member.

  In such a fuel cell apparatus, the air in the auxiliary machine storage chamber that has circulated in the partition member is supplied to the module storage chamber from the air flow hole provided in the partition member, and the auxiliary device that has circulated in the partition member. A part of the air in the storage chamber flows through the pedestal member and is supplied into the module storage chamber from an air circulation hole provided in the pedestal member. Thereby, the air in the accessory storage chamber can be efficiently supplied to the module storage chamber, and the temperature rise of the exterior case can be efficiently suppressed.

  In the fuel cell device of the present invention, it is preferable that the air circulation hole is provided between the side wall having the exhaust port in the partition member and the fuel cell module.

  In such a fuel cell device, since the air circulation hole is provided between the side wall having the exhaust port of the partition member and the fuel cell module, the air in the accessory storage chamber is directed from the four directions into the module storage chamber. To be supplied. Thereby, the air in a module storage room can be ventilated efficiently, and the temperature rise of an exterior case can be suppressed efficiently.

  A fuel cell device of the present invention includes a fuel cell module in which a plurality of fuel cells are housed in a rectangular parallelepiped storage container in an outer case, and an auxiliary device for operating the fuel cell module. A fuel cell device partitioned into a module storage chamber in which the fuel cell module is stored and an auxiliary device storage chamber in which the auxiliary device is stored, by a partition member provided in the exterior case, An exhaust port for exhausting air in the module storage chamber is provided at an upper portion of the outer case constituting the storage chamber, and air in the auxiliary device storage chamber is introduced into the module storage chamber around the bottom of the fuel cell module. Since there are multiple air circulation holes for supplying air, the air in the module storage room can be efficiently ventilated, and the temperature rise of the outer case can be effectively achieved. It is possible to improve suppression

  FIG. 1 is an external perspective view showing an example of the fuel cell device of the present invention, in which a part of a side surface part constituting the outer case 2 is removed so that the inside of the outer case 2 can be seen. In FIG. 1, some of the members stored in the outer case are omitted. FIG. 2 is a side view schematically showing the fuel cell device shown in FIG. 1, and shows the interior of the exterior case 2 so that the interior of the exterior case 2 can be seen by removing the side surface part constituting the exterior case 2 as in FIG. 1. ing. In the following drawings, the same number is assigned to the same configuration.

  In FIG. 1, a fuel cell device 1 includes a partition member 4 in an outer case 2 having a column 3, and a fuel cell module in which a plurality of fuel cells are stored in a storage container above the partition member 4. A module storage chamber 5 in which 7 (hereinafter sometimes referred to as a module) is disposed is formed. Further, auxiliary equipment necessary for operating the module 7 is shown below the partition member 4 (in FIG. 2, a heat exchanger 10 for exchanging heat between the exhaust gas discharged from the module 7 and water is shown. .) Is formed. The partition member 4 only needs to partition the module storage chamber 5 and the accessory storage chamber 6, and the module storage chamber 5 and the accessory storage chamber 6 may be partitioned with a gap.

  In addition, the fuel cell apparatus 1 can be made into a compact shape by using the partition member 4 as shown in FIG.

  Further, in FIG. 1, in order to increase the strength of the outer case 2, a support column 3 is provided to stand in the height direction of the outer case 2. Although FIG. 1 shows an example in which a total of four support columns 3 are provided at each corner of the outer case 2, the number can be appropriately increased or decreased according to the size, weight, etc. of the outer case 2. Further, FIG. 1 shows a case where the support column 3 is erected in the height direction of the outer case 2, but it can also be provided in the width direction or depth direction of the outer case 2, for example. In FIG. 2, the support column 3 is omitted.

  Next, the module 7 used in the fuel cell device 1 of the present invention will be described. The module 7 is arranged in a storage container, for example, in a state in which a plurality of columnar fuel cells having gas flow paths through which gas flows is erected, and between the adjacent fuel cells, a current collecting member And a cell stack in which the lower end of the fuel cell is fixed to the manifold with an insulating bonding material such as a glass sealing material, and the fuel cell arranged above the fuel cell. And a reformer for supplying a hydrogen-containing gas (not shown). In addition, it is preferable to provide a heat insulating material on the outer surface of the storage container for the purpose of suppressing radiant heat from the module 7.

  Here, various types of fuel cells are known as the fuel cells constituting the cell stack. However, when the fuel cell device 1 is reduced in size, it can be a solid oxide fuel cell. As a result, in addition to the fuel battery cell, auxiliary equipment necessary for the operation of the fuel battery cell can be reduced in size, and the fuel cell apparatus 1 can be reduced in size. In addition, it is possible to perform a load following operation that follows a fluctuating load required for a household fuel cell.

  In addition, although the fuel battery cell of various shapes can be used as a shape of the fuel battery cell, it can be set as a hollow plate type fuel battery cell in order to generate electric power efficiently. As such a hollow plate type fuel cell, a fuel electrode support type hollow plate type fuel cell in which a fuel electrode layer is formed on the inner side and an oxygen electrode layer is formed on the outer side can be used.

  By the way, in the case of using the solid oxide fuel cell as the fuel cell as described above, the power generation temperature of the fuel cell is as high as about 800 ° C. to 1000 ° C., and accordingly, the temperature of the module 7 is also high. Become. Further, the exterior case 2 may become high temperature due to the radiant heat of the module 7.

  Therefore, in order to lower the temperature in the module storage chamber 5, an exhaust port 8 for exhausting the air in the module storage chamber 5 is provided in the upper part of the outer case 2, and a ventilation fan is installed in the vicinity of the exhaust port 8. It has been proposed.

  However, when the air in the module storage chamber 5 is ventilated using a ventilation fan, there is a possibility that the air at a location far from the location where the ventilation fan is installed cannot be sufficiently ventilated, and between the module 7 and the outer case 2 When the gap is narrow (for example, when the module 7 is disposed in contact with the support column 3), part of the air inside the module storage chamber 5 becomes difficult to flow, and part of the temperature of the outer case 2 is reduced. May rise.

  Here, in the fuel cell device 1 shown in FIGS. 1 and 2, the partition member 4 on which the module 7 is placed (that is, around the bottom of the module 7) is provided with a plurality of air circulation holes 9, and the auxiliary equipment storage chamber The air in 6 is supplied into the module storage chamber 5 through the air circulation hole 9.

  Therefore, since the air in the auxiliary machine storage chamber 6 is supplied into the module storage chamber 5 through the plurality of air circulation holes 9, the air in the module storage chamber 5 can be efficiently ventilated. Thereby, the temperature in the module housing chamber 5 can be lowered, and at the same time, the temperature rise of the outer case 2 can be efficiently suppressed (the temperature of the outer case 2 can be lowered).

  Here, in FIG. 1, the exhaust port 8 is provided on the upper side of one side wall of the exterior case 2, and the plurality of air circulation holes 9 are adjacent to the side wall having the exhaust port 8 among the partition members 4. An example is shown in which a total of three locations are provided between the side wall of the outer case 2 and the module 7 and between the side wall of the outer case 2 disposed opposite to the side wall having the exhaust port 8 and the module 7. .

  When the exhaust port 8 is provided on one side wall of the exterior case 2, the air in the vicinity of the exhaust port 8 easily flows toward the exhaust port 8, but the air located far from the exhaust port 8 It becomes difficult to flow toward. Therefore, it is preferable that air located at a position far from the exhaust port 8 is forced to flow toward the exhaust port 8.

  Here, the air circulation hole 9 is supplied from the auxiliary equipment storage chamber 6 by providing the air circulation hole 9 between the side wall of the exterior case 2 arranged opposite to the side wall having the exhaust port 8 in the partition member 4 and the module 7. Due to the air (airflow), air at a location far from the exhaust port 8 can flow toward the exhaust port 8. Thereby, the air in the module storage chamber 5 can be ventilated efficiently, and the rise in the temperature of the exterior case 2 can be suppressed efficiently.

  Further, when the gap between the module 7 and the outer case 2 is particularly narrow (for example, when the module 7 is disposed in contact with the support column 3), the partition member 4 faces the side wall having the exhaust port 8. Most of the air supplied from the air circulation hole 9 provided between the side wall of the exterior case 2 and the module 7 arranged opposite to the side surface side of the module 7 (the side wall adjacent to the side wall having the exhaust port 8) is opposed. It will not flow to the side).

  As a result, air in the space provided between the side wall of the outer case 2 adjacent to the side wall having the exhaust port 8 and the module 7 cannot be sufficiently ventilated, and the temperature of a part of the outer case 2 may rise. There is.

  Therefore, in the fuel cell device shown in FIG. 1, among the partition member 4, the side wall having the exhaust port 8, the side wall of each outer case 2 adjacent to the side wall having the exhaust port 8, and the side wall having the exhaust port 8. By providing an air circulation hole 9 between the side wall of the outer case 2 disposed opposite to the module 7 and the module 7, the outer case adjacent to the air at a position farther from the exhaust port 8 and the side wall having the exhaust port 8 is provided. The air in the space provided between the side wall 2 and the module 7 can be sufficiently ventilated, and the temperature rise of the outer case 2 can be efficiently suppressed.

  In addition, the arrangement | positioning place, magnitude | size, etc. of the air circulation hole 9 can be suitably set based on the magnitude | size of the module 7, the magnitude | size of the clearance gap between the module 7, and the exterior case 2, etc.

  FIG. 3 shows an external perspective view of the fuel cell device 11 in which the module 7 is disposed on the pedestal member 12 disposed on the partition member 4 and the air circulation hole 13 is provided in the pedestal member 12. The side surface part which comprises the exterior case 2 is removed and it has shown so that the inside of the exterior case 2 may be seen. Note that some members housed in the outer case 2 are omitted. FIG. 4 is a side view schematically showing the fuel cell device 11 shown in FIG. 3, and the side part constituting the outer case 2 is removed similarly to FIG. 3 so that the inside of the outer case 2 can be seen. Show. In FIG. 4, a heat exchanger 10 for exchanging heat between exhaust gas discharged from the module 7 and water is shown as an auxiliary machine stored in the auxiliary machine storage chamber 6.

  Here, in the fuel cell device 11 shown in FIG. 3, the air flow is made so that the outlet of the base member 12 disposed on the partition member 4 faces the side wall of each outer case 2 adjacent to the exhaust port 8. The example which provided the hole 13 is shown. In addition to the air flow hole 13 provided in the pedestal member 12, the air flow hole 9 is provided between the module 7 and the side wall of the exterior case 2 disposed facing the side wall having the exhaust port 8 in the partition member 4. There is an exit.

  Thereby, the air in the auxiliary machine storage chamber 6 can be supplied to the module storage chamber 5 through the air circulation hole 9 so that the air far from the exhaust port 8 can flow toward the exhaust port 8. By being supplied into the module storage chamber 5 through the air circulation hole 13, the air in the space provided between the side wall having the exhaust port 8 and the side wall of the exterior case 2 adjacent to the module 7 is sufficiently ventilated. Can do.

  Further, the space formed by the air flow hole 9 provided in the partition member 4 and the air flow hole 13 provided in the base member 12 by the side wall of the outer case 2 having the module 7 and the exhaust port 8 is excluded. Air in the auxiliary machine storage chamber 6 is supplied into the module storage chamber 5 from three directions. Thereby, the air in the module storage chamber 5 can be efficiently ventilated, and the temperature of the outer case 2 can be suppressed from rising (the temperature of the outer case 2 can be lowered).

  In addition, when providing the air flow hole 13 in the pedestal member 12, it can be formed by notching a part of the pedestal member 12 or providing a through hole in a part of the pedestal member 12. In this case, the cutout portion or the through portion is formed as the air flow hole 13, and the air in the auxiliary machine storage chamber 6 is supplied by supplying the air in the auxiliary machine storage room 6 to the air flow hole 13. It will be supplied into the module storage chamber 5. Thereby, the air in the auxiliary machine storage chamber 6 can be easily supplied into the module storage chamber 5.

  Note that the position where the outlet of the air circulation hole 13 is provided can be set as appropriate depending on the size of the module 7, the width of the gap between the module 7 and the outer case 2, and the like. For the purpose of efficiently ventilating air, the side wall side of the exterior case 2 facing the exhaust port 8 from the center of both side surfaces of the module 7 (both side surfaces facing the side wall adjacent to the side wall having the exhaust port 8) It is preferable to provide so that it may be located between.

  Further, when the outlets of the air circulation holes 13 are provided on both side surfaces of the module 7, a part of the air circulation holes 13 may be bent or the like, but the auxiliary equipment storage chamber supplied from both side surfaces of the module 7. In consideration of the air flow in the interior 6 and the like, it is preferable to use a flow path without a bent portion (rectangular flow path).

  Further, in FIGS. 3 and 4, an air blower 14 for supplying air in the accessory storage chamber 6 into the module storage chamber 5 is provided in the accessory storage chamber 6. 3 and 4, the air blower 14 is connected to the air introduction portion 15 of the air circulation hole 13, and the air in the auxiliary machine storage chamber 6 supplied from the air blower 14 is the air circulation hole 13. The example which is supplied more in the module storage chamber 5 is shown.

  Thereby, more air in the auxiliary machine storage chamber 6 can be supplied to the air circulation hole 13, and more air in the auxiliary machine storage chamber 6 can be supplied into the module storage room 5.

  As a result, the air in the auxiliary machine storage chamber 6 efficiently flows in the module storage chamber 5, the ventilation in the module storage chamber 5 can be efficiently performed, and the temperature of the outer case 2 is increased efficiently. It can be suppressed well (the temperature of the outer case 2 can be lowered).

  Although not shown in the figure, an air blower for supplying the air in the auxiliary machine storage chamber 6 to the module storage room 5 can be connected to the auxiliary machine storage chamber 6 side of the air circulation hole 9. is there. In this case, since the air located far from the exhaust port 8 can flow toward the exhaust port 8, the inside of the module storage chamber 5 can be ventilated more efficiently. The rise in temperature can be efficiently suppressed (the temperature of the outer case 2 can be lowered).

  FIG. 5 shows that after the air in the auxiliary machine storage chamber 6 circulates in the partition member 4, the air is supplied into the module storage chamber 5 through the air circulation hole 9 and a part of the air circulated in the partition member 4. FIG. 2 is an external perspective view of the fuel cell device 16 having a configuration in which the fuel cell device 16 is supplied from the air circulation hole 13 into the module housing chamber 5 after being circulated through the pedestal member 12. Is shown so that the inside of the outer case 2 can be seen. Note that some members housed in the outer case 2 are omitted. 6 is a side view schematically showing the fuel cell device 16 shown in FIG. 5. As in FIG. 5, the side portion constituting the outer case 2 is removed so that the inside of the outer case 2 can be seen. Show. FIG. 6 shows a heat exchanger 10 for exchanging heat between the exhaust gas discharged from the module 7 and water as an auxiliary machine stored in the auxiliary machine storage chamber 6.

  As described above, by using the air blower, more air in the accessory storage chamber 6 can be supplied into the module storage chamber 5. In this case, from the viewpoint of the size and cost of the fuel cell device, the air in the accessory storage chamber 6 is supplied to the module storage chamber 5 from both the air circulation hole 9 and the air circulation hole 13 with one air blower. It is preferable.

  Therefore, in the fuel cell device 16 shown in FIGS. 5 and 6, a partition member air flow passage 17 is provided for the air in the auxiliary machine storage chamber 6 to flow through the partition member 4. The partition member air flow passage 17 is connected to the air circulation hole 13, and a part of the air that has flowed through the partition member air flow passage 17 flows into the air circulation hole 13.

  As a result, the air in the auxiliary machine storage chamber 6 flows through the partition member air flow passage 17 and is supplied into the module storage chamber 5 from the air flow hole 9, and one part of the air flowing through the partition member air flow passage 17. The part flows through the air circulation hole 13 provided in the base member 12 and is supplied into the module storage chamber 5, and the air in the auxiliary machine storage chamber 6 is efficiently supplied into the module storage chamber 5. be able to.

  Note that when the air in the auxiliary machine storage chamber 6 is supplied into the module storage chamber 5 from both the air flow hole 9 and the air flow hole 13 by the air blower, the air blower 14 is connected to the partition member air flow passage 17 ( It is preferable to connect to the partition member air introduction part 19).

  Thereby, more air in the auxiliary equipment storage chamber 6 supplied from the air blower 14 connected to the partition member air introduction part 19 flows in the partition member 4 (partition member air flow passage 17), and the partition member 4 A part of the air that flows through the partition member 4 (partition member air flow passage 17) is supplied into the module member chamber 5 through the air flow hole 9 provided in the base member 12 (air flow hole 13). Then, the air is supplied into the module storage chamber 5 from the air circulation holes 13 provided facing the side walls of the respective outer case 2 adjacent to the side wall of the outer case 2 having the exhaust port 8. Thereby, ventilation in the module storage chamber 5 can be performed more efficiently, and the temperature of the outer case 2 can be lowered efficiently.

  Further, when the partition member air flow passage 17 is provided, an exhaust port side air circulation hole 18 is provided between the side wall of the exterior case 2 having the exhaust port 8 and the module 7 in the partition member 4. It is also possible to connect the exhaust port side air circulation hole 18 with the partition member air flow passage 17.

  That is, by providing the exhaust port side air circulation hole 18 between the side wall of the exterior case 2 having the exhaust port 8 and the module 7 in the partition member 4, the air in the auxiliary equipment storage chamber 6 can be moved from the four directions to the module. It will be supplied into the storage chamber 5. Thereby, the air in the module storage chamber 5 can be ventilated efficiently, and the rise in the temperature of the outer case 2 can be efficiently suppressed.

  Since air in the vicinity of the exhaust port 8 easily flows to the exhaust port 8, the outlet size of the air circulation hole 9 is set larger than that of the outlet of the exhaust port side air circulation hole 18 when the exhaust port side air circulation hole 18 is provided. It is preferable to enlarge it. FIG. 6 shows an example in which the outlet of the air circulation hole 9 is larger than the outlet of the exhaust outlet side air circulation hole 18.

  As a result, a large amount of air in the accessory storage chamber 6 flows to the side of the air circulation hole 9 located at a position far from the exhaust port 8, and the air in the module storage chamber 5 can be efficiently ventilated. Thus, the temperature rise of the outer case 2 can be efficiently suppressed.

  In this case, the shape of the partition member air flow passage 17 is a rectangular parallelepiped, and the size of the outlet of the air circulation hole 9 is made larger than that of the exhaust port side air circulation hole 18, or the partition member air flow passage 17 Can be tapered from the air flow hole 9 toward the exhaust port side air flow hole 18.

  Although the present invention has been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and improvements can be made without departing from the scope of the present invention.

  For example, for the purpose of more efficiently ventilating the module storage chamber 5, the entire inside of the pedestal member 12 can be used as the air circulation hole 13, and the entire inside of the partition member 4 is connected to the partition member air flow passage 17. You can also Furthermore, when the air flow hole 13 is provided in the base member 12 or when the partition member air flow passage 17 is provided in the partition member 4, a plurality of each can be provided. Further, the module 7 and the pedestal member 12 on which the module 7 is placed can be formed integrally.

It is an external appearance perspective view which shows an example of the fuel cell apparatus of this invention. It is the schematic (side view) which showed roughly an example of the fuel cell apparatus of this invention shown in FIG. It is an external appearance perspective view which shows another example of the fuel cell apparatus of this invention. It is the schematic (side view) which showed schematically another example of the fuel cell apparatus of this invention shown in FIG. It is an external appearance perspective view which shows another example of the fuel cell apparatus of this invention. FIG. 6 is a schematic view (side view) schematically showing still another example of the fuel cell device of the present invention shown in FIG. 5.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 11, 16: Fuel cell apparatus 2: Exterior case 4: Partition member 5: Module storage chamber 6: Auxiliary machinery storage chamber 7: Fuel cell module 8: Exhaust port 9, 13: Air circulation hole 12: Base member 14: Air blower 17: Partition member air flow passage 18: Exhaust port side air flow hole

Claims (8)

  The outer case has a fuel cell module in which a plurality of fuel cells are stored in a rectangular parallelepiped storage container, and an auxiliary device for operating the fuel cell module, and is provided in the outer case. A fuel cell device partitioned by a partition member into a module storage chamber in which the fuel cell module is stored and an auxiliary device storage chamber in which the auxiliary device is stored, and the exterior case constituting the module storage chamber An exhaust port for exhausting air in the module storage chamber at the top of the fuel cell module, and an air circulation hole for supplying air in the accessory storage chamber to the module storage chamber around the bottom of the fuel cell module. A fuel cell device comprising a plurality of fuel cell devices.   2. The fuel cell device according to claim 1, wherein an air blower is provided in the auxiliary equipment storage chamber to supply air in the auxiliary equipment storage chamber to the module storage chamber through the air circulation hole.   3. The fuel cell module according to claim 1, wherein the fuel cell module is disposed on a pedestal member disposed on the partition member, and at least the air circulation hole is provided in the pedestal member. The fuel cell device according to the description.   The fuel cell device according to any one of claims 1 to 3, wherein the air circulation hole is provided at least in the partition member.   The exhaust port is provided in one side wall of the exterior case constituting the module storage chamber, the air circulation holes are provided in the pedestal member and the partition member, respectively, and are provided in the pedestal member. The outlet of the air circulation hole provided in the partition member is provided so that the outlet of the air circulation hole faces the side wall of the outer case adjacent to the side wall of the outer case having the exhaust port. 5. The fuel cell device according to claim 4, wherein the fuel cell device is provided between a side wall of the outer case disposed opposite to the side wall having the exhaust port and the fuel cell module.   The exhaust port is provided in one side wall of the exterior case constituting the module storage chamber, the air circulation holes are provided in the pedestal member and the partition member, respectively, and are provided in the pedestal member. The fuel cell device according to claim 5, wherein an outlet of the air circulation hole is provided on a side wall side of the outer case disposed to face a side wall having the exhaust port.   After the air in the accessory storage chamber flows through the partition member, the air is supplied to the module storage chamber from the air flow hole provided in the partition member, and the air that flows through the partition member 7. The fuel cell device according to claim 5, wherein the portion is supplied into the module housing chamber from the air circulation hole provided in the pedestal member after flowing through the pedestal member. .   The said air circulation hole is provided between the said side wall which has the said exhaust port among the said partition members, and the said fuel cell module, The Claim 5 thru | or 7 characterized by the above-mentioned. Fuel cell device.

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