JP2018160325A - Housing structure for fuel cell system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a housing structure for a fuel cell system capable of suppressing interference at a corner of a passage.SOLUTION: Provided is a housing structure for a fuel cell system 10 that has a housing 12a transported along a corner 90c provided in a passage 90 having a predetermined passage width TW, a lateral width of the housing 12a being longer than the passage width TW. When assuming a virtual semicircle 202 that uses the passage width TW as a radius R around a width direction central part 200 on one surface 12c at one side in a short-side direction TH of the housing 12a, a corner 12j at an end of the other surface 12d at the other side in the short-side direction TH of the housing 12a is cut out so that the housing 12a is fitted inside the virtual semicircle 202.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a housing structure for a fuel cell system.

  Conventionally, a fuel cell system having a fuel cell module is known (see, for example, Patent Document 1). A fuel cell that generates electric power by an electrochemical reaction is accommodated in the casing of the fuel cell module.

  The housing of the fuel cell module is formed by a front member, a rear member, a right member, a left member, a lower member, and an upper member, and each member is formed in a rectangular shape. Thereby, the housing of the fuel cell system is formed in a rectangular parallelepiped shape.

JP-A-2006-139470

  However, in the above-described fuel cell system, for example, the fuel cell system is not considered to be disposed in a passage formed in the outer peripheral portion of the building, and there is a restriction on the installation location.

  Further, when such a fuel cell system is installed in a passage, it may be necessary to pass a corner of the passage at the time of carry-in. At that time, the case may interfere with the corner wall surface, and may not be carried in.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a housing structure of a fuel cell system that can suppress interference at a corner of a passage.

  According to a first aspect, there is provided a housing structure of a fuel cell system having a casing that is transported along a bend provided in a passage having a predetermined passage width and has a lateral width longer than the passage width. When assuming a virtual semicircle whose radius is the passage width centered on the widthwise central portion on one surface in one side in the short direction, the short side of the case is placed within the virtual semicircle. The corner of the end of the other surface on the other side in the direction is dropped.

  That is, the casing has a shape in which corners on the other surface are dropped so as to fit within a virtual semicircle having the passage width as a radius centered on the central portion in the width direction of one surface.

  For this reason, in the state where the widthwise central portion of one surface of the housing is in contact with or close to the inner corner of the corner, if the housing is rotated around the widthwise central portion, it interferes with the passage wall surface. It is possible to pass the corner without any trouble.

  In the second aspect, the corner portion at the end of the other surface has a chamfered shape that is chamfered so as to be within the virtual semicircle.

  That is, the corner of the other surface on the other side in the short side direction of the housing is chamfered to have a chamfered shape, and is formed so that the housing is within a virtual semicircle.

  For this reason, it is possible to allow a corner to pass without shortening the width or depth of the casing. Thereby, it is possible to suppress the interference at the corner while maintaining the housing size.

  In the third aspect, the corner of the end of the other surface has an R shape that is rounded to fit within the virtual semicircle.

  In other words, the corner of the other surface on the other side in the short side of the casing is rounded to have an R shape, and the casing is formed so as to fit within a virtual semicircle.

  For this reason, it is possible to allow a corner to pass without shortening the width or depth of the casing. Thereby, it is possible to suppress the interference at the corner while maintaining the housing size.

  In a 4th aspect, the curvature of the said corner | angular part centering on the said width direction center part is 2.0 or less.

  That is, when turning the corner of the passage, if the center of the casing in the longitudinal direction is close to the corner on the inner side of the corner, the corner passes through the corner without interfering with the wall of the passage. Even if the passage angle is narrow, it is easy to carry in.

  In the fifth aspect, the passage width is 500 mm or more, and the curvature of the corner portion with the central portion in the width direction being 2.0 or less.

  That is, the passage width is suitable for carrying into a passage including a corner portion of 500 mm or more.

  In the case structure of the fuel cell system according to the first aspect, it is possible to suppress interference at the corner of the passage.

1 is a perspective view showing a fuel cell system according to a first embodiment of the present invention. It is a perspective view which shows the fuel cell unit to which the housing structure of the fuel cell system of 1st embodiment was applied. It is a block diagram which shows the fuel cell system of 1st embodiment. It is a top view which shows the relationship between the fuel cell unit of 1st embodiment, and the channel | path conveyed. It is a top view which shows the relationship between the fuel cell unit of 2nd embodiment, and the channel | path conveyed.

(First embodiment)
Hereinafter, the fuel cell system according to the first embodiment will be described with reference to FIGS.

  As shown in FIG. 1, the fuel cell system 10 includes a fuel cell unit 12 integrated with a heat storage unit that generates power using fuel gas and water, and clean water heated by the fuel cell unit 12 at a target temperature. And a water heater unit 14 for heating up to.

  As shown in FIGS. 1 and 2, the casing 12a of the fuel cell unit 12 is formed in a rectangular parallelepiped shape in which the width dimension in the longitudinal direction NH, which is the lateral width direction, is longer than the depth dimension in the short direction TH. The width dimension from the left side surface 12e to the right side surface 12f located in the longitudinal direction NH is W1, the height dimension from the bottom surface 12g to the top surface 12h is H1, and the depth dimension from the front surface 12d to the rear surface 12c is located in the short side direction TH. Is D1, the width dimension W1 is longer than the depth dimension D1 (D1 <W1).

  In addition, the front surface 12d and the back surface 12c of the fuel cell unit 12 are names given for convenience of description, and do not limit the difference in the design of the surface or the orientation in the installed state. Further, the left side surface 12e and the right side surface 12f of the fuel cell unit 12 are also names given for convenience of explanation, and do not limit the difference in design of the surface or the direction in the installed state.

  The right side surface 12f of the casing 12a constitutes a fuel cell side maintenance surface 12b. Here, the maintenance surface refers to a surface that is partially or wholly opened during maintenance inspection. Examples of the fuel cell-side maintenance surface 12b include a door structure fixed to the frame via a hinge and a removable panel structure whose peripheral portion is fixed with screws. Thereby, maintenance (maintenance inspection) inside the fuel cell unit 12 can be performed by opening the fuel cell side maintenance surface 12b.

  The fuel cell side maintenance surface 12b is provided with an exhaust port 13 which is an example of an exhaust part. Further, the fuel cell side maintenance surface 12b is provided with a piping / wiring section 12i for connecting piping and wiring so that piping and wiring connected to the fuel cell unit 12 extend. It is configured. Such maintenance surfaces may additionally be set, for example, on the top surface 12h, the back surface 12c, and the front surface 12d.

  As shown in FIG. 1, the water heater unit 14 is formed in a rectangular parallelepiped shape having a width dimension longer than the depth dimension, and includes a lower component part 16 constituting the lower side and a water heater body 18 constituting the upper side. ing. An example of the lower component 16 is a stationary table.

  Here, although this embodiment demonstrates the case where the lower water heater main body 18 is installed in the lower part of the water heater main body 18, and the lower water heater main body 18 is installed, it is not limited to this. For example, in the case of a wall-hanging type in which the water heater main body 18 is installed on a building wall, the lower component 16 such as a table is not required.

  The casing 14a of the water heater unit 14 composed of the lower component 16 and the water heater body 18 has a width dimension W2 from the left side surface 14e to the right side surface 14f located in the lateral width direction, and a height from the bottom surface 14g to the top surface 14h. When the dimension is H2, and the depth dimension from the front surface 14d to the back surface 14c is D2, the width dimension W2 is longer than the depth dimension D2 (D2 <W2).

  In addition, the front surface 14d and the back surface 14c of the water heater unit 14 are names given for convenience of description, and do not limit the difference in the design of the surface or the orientation in the installed state. Moreover, the left side surface 14e and the right side surface 14f of the water heater unit 14 are also names given for convenience of explanation, and do not limit the difference in the design of the surface or the direction in the installed state.

  The right side surface of the casing 18a of the water heater body 18 (upper part of the right side surface 14f of the water heater unit 14) constitutes a water heater side maintenance surface 18b having an exhaust port, and the water heater side maintenance surface 18b is, for example, Examples thereof include a door structure fixed to the frame via a hinge and a removable panel structure whose peripheral portion is fixed with screws. Thereby, the maintenance inside the water heater main body 18 can be performed by opening the water heater side maintenance surface 18b.

  In addition, the right side surface of the casing 16a of the lower component 16 (the lower side of the right side surface 14f of the water heater unit 14) also constitutes a maintenance surface 16b, for example, and this maintenance surface 16b is connected to the frame via a hinge, for example. Examples include a fixed door structure and a removable panel structure in which the peripheral edge is fixed with screws. Thereby, maintenance of piping etc. which were connected to water heater main body 18 can be performed by opening maintenance surface 16b, for example.

  The depth dimension D2 of the water heater unit 14 is set to be shorter than the depth dimension D1 of the fuel cell unit 12. Here, as the water heater unit 14, standard types, slim types, and compact types having different external dimensions are prepared, and any type of water heater unit 14 may be used.

  As shown in FIG. 3, the fuel cell unit 12 of the fuel cell system 10 includes a fuel cell module 20 that generates power. The fuel cell module 20 is connected to a gas joint 22 via a gas supply path 21, and a gas pipe 24 is connected to the gas joint 22. From the gas pipe 24, a city gas mainly composed of methane, which is an example of a hydrocarbon raw material, or a liquefied petroleum gas mainly composed of propane / butane is supplied as a fuel. A desulfurization unit 26 is provided in the gas supply path 21, and sulfur and sulfur compounds contained in the supplied gas are removed by the desulfurization unit 26 and supplied to the fuel cell module 20. Note that FIG. 2 shows an example in which city gas is used.

  The fuel cell module 20 is connected to a reformed water tank 32 via a reformed water inflow passage 30 having a supply pump 28, and the fuel cell module 20 includes a modified water stored in the reformed water tank 32. Quality water is supplied by the supply pump 28. The fuel cell module 20 includes a reformer (not shown) that generates hydrogen and the like by reforming a city gas or liquefied petroleum gas and reformed water.

  The fuel cell module 20 includes a power generation unit (not shown) that generates power using hydrogen generated by the reformer and oxygen in the air sent by the blower 20a. The DC power from the power generation unit of the fuel cell module 20 is converted into AC power by the inverter circuit 38 and then supplied to the outside through the power cord 92 connected to the connection terminal 40.

  The fuel cell module 20 is connected to a discharge path 34 for discharging exhaust gas generated when gas is used for reforming or power generation. An exhaust heat exchanger 36 is provided in the discharge path 34, and the downstream side of the exhaust heat exchanger 36 is connected to the reforming water tank 32. The combustion exhaust gas from the fuel cell module 20 is cooled by the exhaust heat exchanger 36, and the contained water vapor is condensed. Thus, the combustion exhaust gas is divided into a liquid and a gas, and the liquid is sent to the reforming water tank 32 and reused as the reforming water. Further, as shown in FIG. 1, the gas is exhausted from the exhaust port 13 of the fuel cell side maintenance surface 12b.

  A supply path 42 is connected to the exhaust heat exchanger 36. The supply passage 42 is provided with a heat recovery pump 44 and a radiator 46, and the supply passage 42 is connected to a hot water storage tank 48 on the upstream side of the radiator 46. A heat transfer medium 50 is stored in the hot water storage tank 48, and water is used as an example of the heat transfer medium 50.

  The supply path 42 is connected to the lower part of the hot water storage tank 48, and the heat transfer medium 50 stored in the lower part of the hot water storage tank 48 is preferentially sent to the exhaust heat exchanger 36. The heat transfer medium 50 supplied from the hot water storage tank 48 to the supply path 42 is cooled by the radiator 46 and then sent to the exhaust heat exchanger 36 by the heat recovery pump 44. The radiator 46 includes a radiator fan (not shown), and operates the fan motor as necessary, such as when the supplied heat transfer medium 50 is hot.

  A discharge path 52 is connected to the exhaust heat exchanger 36, and the heat transfer medium 50 that has passed through the exhaust heat exchanger 36 is returned to the hot water storage tank 48 via the discharge path 52. The discharge path 52 is connected to the upper part of the hot water storage tank 48. The heat of the combustion exhaust gas from the fuel cell module 20 is transferred to the heat transfer medium 50 by the exhaust heat exchanger 36, and the heat transfer medium 50 heated by this heat is returned to the upper part of the hot water storage tank 48. The exhaust heat exchanger 36, the hot water storage tank 48 and the like constitute a heat storage unit.

  The heat transfer medium 50 stored in the hot water storage tank 48 is returned to the hot water storage tank 48 via a circulation path 58 having a water heat exchanger 54 and a heating pump 56. The heat pump 56 operates when heating the clean water with the heat transfer medium 50 of the hot water storage tank 48.

  The upstream side of the circulation path 58 is connected to the upper part of the hot water storage tank 48, and the heat transfer medium 50 stored in the upper part of the hot water storage tank 48 is preferentially supplied to the hot water heat exchanger 54. The downstream side of the circulation path 58 is connected to the lower part of the hot water storage tank 48, and the heat transfer medium 50 that has been deprived of heat by the hot water heat exchanger 54 is returned to the lower side of the hot water storage tank 48.

  An inflow path 60 having an inflow side branch point 60 a is connected to the water heat exchanger 54. The inflow path 60 is connected to the inlet side pipe joint 62. The inlet side pipe joint 62 is connected to a water supply pipe 64 of, for example, a water pipe, and clean water is supplied to the inflow path 60.

  An outflow channel 66 is connected to the water heat exchanger 54. The outflow channel 66 is provided with an outflow side branch point 66a, and a supplemental water channel 70 having a supplementary water valve 68 is connected to the outflow side branch point 66a. The supplementary water passage 70 is connected to the upper part of the hot water storage tank 48, and by opening the supplementary water valve 68, the upper water from the upper water heat exchanger 54 is supplied from the upper part of the hot water storage tank 48 as the heat transfer medium 50. be able to.

  A mixing valve 72 is provided downstream of the outflow path 66 on the outflow side branch point 66a. The mixing valve 72 is connected to the inflow side branch point 60 a via the bypass path 74. The mixing valve 72 is a valve that mixes the clean water from the inflow channel 60 and the clean water from the clean water heat exchanger 54, and for example, from the inflow channel 60 so that the outflow temperature becomes a predetermined set temperature. The mixing ratio of clean water and clean water from the clean water heat exchanger 54 is adjusted.

  A downstream side of the mixing valve 72 of the outflow passage 66 is connected to an outlet side joint 76, and the outlet side joint 76 is connected to a water inlet joint 80 of the water heater unit 14 via a hot water pipe 78.

  A gas pipe 24 is connected to the gas joint 82 of the water heater unit 14, and liquefied petroleum gas mainly containing city gas or propane / butane is supplied to the water heater unit 14 from the gas pipe 24. A hot water supply pipe 86 is connected to the hot water supply joint 84 of the water heater unit 14. This water heater unit 14 burns liquefied petroleum gas whose main component is city gas or propane / butane, thereby heating the water supplied from the water inlet joint 80 to a temperature set by a remote controller (not shown). It is supplied by a hot water supply pipe 86.

  In the present embodiment, the case where the gas pipe 24 from the fuel cell unit 12 and the gas pipe 24 from the water heater unit 14 are connected to each other and connected to the gas supply source has been described. However, the present invention is not limited to this. is not. The gas pipe 24 from the fuel cell unit 12 and the gas pipe 24 from the water heater unit 14 may be independently connected to a gas supply source.

  As shown in FIG. 4, the fuel cell unit 12 and the water heater unit 14 are transported through a turn 90 c of a passage 90 provided on the outer periphery of the building 110, for example, and installed in the passage 90 ( The installation state is not shown).

  Here, the minimum distance from the adjacent land boundary line constituting the one side edge 90a of the passage 90 to the building 110 constituting the other side edge 90b of the passage 90 defines the separation distance from the adjacent land boundary line to the outer wall 110a of the building 110. It is stipulated by the law (restrictions on buildings near the boundary: Article 234 of the Civil Code).

  The adjacent land boundary line constituting the one side edge 90a of the passage 90 indicates a line between the adjacent site and the boundary of the site, and the other side edge 90b of the passage 90 indicates the boundary with the outer wall 110a of the building 110. The passage 90 indicates a region elongated in the longitudinal direction N formed along the building 110 between the adjacent boundary line and the outer wall 110a of the building 110 (for example, 500 mm to 730 mm). The minimum distance of the passage width TW of the passage 90 is 500 mm due to “restriction of buildings near the boundary”.

  The housing structure of the fuel cell system according to the present embodiment is applied to the fuel cell unit 12, and the relationship between the fuel cell unit 12 and the passage 90 through which the fuel cell unit 12 is conveyed is shown below. The passage 90 is formed with a corner 90c that is bent at a right angle.

  The casing 12a of the fuel cell unit 12 is set such that the width dimension W1 is longer than the passage width TW. Assuming a virtual semicircle 202 having a radius R of the passage width TW centering on the widthwise central portion 200 located at the center of the longitudinal direction NH of the back surface 12c of the housing 12a, the housing 12a fits within the virtual semicircle 202. At the same time, the front side corner portion 12j at the end of the front surface 12d of the housing 12a is dropped.

  Further, assuming a virtual semicircle 202a having a radius Ra shorter than the radius R described above, the back surface 12c of the housing 12a is disposed on a straight line that crosses the center of the virtual semicircle 202a, and the housing 12a is formed of the virtual semicircle 202a. The front side corner portion 12j is in a shape in contact with the virtual semicircle 202a.

  And the front side corner | angular part 12j of the edge of the front 12d of the housing | casing 12a is rounded so that it may fit in the virtual semicircle 202a smaller in diameter than the virtual semicircle 202, and the front side corner | angular part 12j is planarly viewed. An R portion 12k having an R shape is formed. This R portion 12k has a curvature C centered on the center portion 200 in the width direction of 2.0 or less (C ≦ 2.0), and the radius of curvature from the center portion 200 in the width direction to the R portion 12k is RK. Then, the curvature C (1 / m) of the R portion 12k is represented by 1 / RK (C = 1 / R1).

  As an example, a specific dimension will be described. The passage width TW of the passage 90 shown in the present embodiment is 550 mm, which is slightly longer than 500 mm which is the minimum distance due to the above-mentioned “restriction of the building near the boundary”. (TW = 550 mm). The width dimension W1 of the casing 12a of the fuel cell unit 12 is set to 800 mm, which is longer than the passage width TW (550 mm), and the depth dimension D1 of the casing 12a is set to 350 mm.

  Further, the radius R of the virtual semicircle 202 is 550 mm, which is the same size as the passage width TW, and the radius Ra of the virtual semicircle 202a assumed to accommodate the housing 12a is the radius R ( 514 mm, which is shorter than 550 mm).

  Here, the radius of curvature indicating the curvature C of the R portion 12k of the front side corner portion 12j is indicated by a radius Ra (RK = Ra), and the center of curvature is indicated by the center portion 200 in the width direction. Moreover, a part (semicircle part) of a curvature circle is shown by the virtual semicircle 202a.

  In the present embodiment, the curvature C of the R portion 12k of the front side corner portion 12j is 1 / Ra = 1 / 0.514, but is not limited to this, and is 1.8 to 2.0. It may be within the range.

  Next, the operation and effect of this embodiment will be described. The case where the fuel cell unit 12 to which the casing structure of the fuel cell system is applied is conveyed along the passage 90 and the corner 90c of the passage 90 is bent will be described as an example.

  When the fuel cell unit 12 is carried into the passage 90 and passes through the turning corner 90c of the passage 90, the width direction central portion 200 of the back surface 12c of the housing 12a is brought close to or in contact with the inner corner of the turning corner 90c. 12a is rotated around the central portion 200 in the width direction.

  At this time, the casing 12a of the fuel cell unit 12 has a corner portion on the front side so as to fit within a virtual semicircle 202 having a radius R of the passage width TW around the center portion 200 in the width direction of the back surface 12c, which is an example of one surface. 12j is a dropped shape.

  For this reason, the corner 90c can be passed without the front side corner portion 12j of the housing 12a interfering with the wall surface constituting the one side edge 90a of the passage 90.

  Therefore, interference at the turning angle 90c of the passage 90 can be suppressed. Thereby, since the fuel cell unit 12 can be passed through the turning angle 90c, the fuel cell unit 12 can be carried in and installed in the passage 90.

  Further, the front-side corner portion 12j of the housing 12a is a rounded R-shaped R portion 12k, and the R portion 12k is formed inside the virtual semicircle 202 so that the housing 12a is It is configured to fit within the virtual semicircle 202.

  For this reason, it is possible to allow the corner 12c to pass without shortening the width dimension W1 and the depth dimension D1 of the casing 12a. Thereby, the interference at the bend 90c can be suppressed while maintaining the size of the housing 12a. Further, as compared with the case where the front side corner portion 12j of the housing 12a has a chamfered shape, the corners can be eliminated and the appearance quality is improved.

  When the housing 12a interferes with another part, it is possible to suppress damage to the interference part.

  The passage width TW of the passage 90 in which the fuel cell unit 12 is installed is 550 mm as an example, and the curvature C of the front side corner portion 12j with the center portion 200 in the width direction of the back surface 12c of the housing 12a as a center is It is set within the range of 1.8 to 2.0. Thereby, it is set as the shape suitable for carrying in to the channel | path 90 whose channel | path width | variety TW is 550 mm. If the passage width TW is 550 mm or more and the passage 90, loading is possible, and the passage width TW is suitable for carrying into the passage 90 having a passage width TW of 550 mm or more and 730 mm or less.

(Second embodiment)
FIG. 5 is a diagram showing a second embodiment. FIG. 5 shows the relationship between the fuel cell unit 12 according to the second embodiment and the transported passage 90. The same or equivalent parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. In addition, only different parts will be described.

  The fuel cell unit 12 according to the present embodiment differs from the first embodiment in the front side corner 12j of the casing 12a, and the front side corner 12j of the casing 12a of the fuel cell unit 12 has a smaller diameter than the virtual semicircle 202. Chamfering is performed by C machining so as to be within the virtual semicircle 202a. Thus, a chamfered chamfered portion 121 is formed between the left side surface 12e and the front surface 12d and between the front surface 12d and the right side surface 12f in the front side corner portion 12j. Further, the angle α formed by the extension line of the left side surface 12e and the front surface 12d and the angle α formed by the extension line of the right side surface 12f and the front surface 12d are set to 45 degrees.

  In this embodiment, the angle α formed by the extension line of the left side surface 12e and the front surface 12d and the angle α formed by the extension line of the right side surface 12f and the front surface 12d are set to 45 degrees as an example. However, the present invention is not limited to this. The angle α formed by the extension line of the left side surface 12e and the front surface 12d and the angle α formed by the extension line of the right side surface 12f and the front surface 12d may be other angles. Further, the angle formed by the extension line of the left side surface 12e and the front surface 12d may be different from the angle formed by the extension line of the right side surface 12f and the front surface 12d.

  Even in such a configuration, it is possible to pass the corner 90c without shortening the width dimension W1 and the depth dimension D1 of the housing 12a. Thereby, it is possible to suppress interference at the bend 90c while maintaining the size of the housing 12a.

  Further, compared to the case where the central portion of the front side corner portion 12j is a curved R portion 12k protruding outward, the amount of protrusion of the front side corner portion 12j to the outside can be suppressed, and an interference preventing effect is achieved. Can be increased.

  In the present embodiment, the case where the casing structure of the fuel cell system is applied to the fuel cell unit 12 has been described as an example. However, the present invention is not limited to this and may be applied to the water heater unit 14. Good.

  In the present embodiment, the housing 12a is configured to fit within the virtual semicircle 202a. However, the present invention is not limited to this, and the housing 12a may fit within the virtual semicircle 202 having a radius R as the passage width TW. If it makes it, the effect mentioned above can be acquired.

  Specifically, when the passage width TW of the passage 90 is 500 mm, which is the minimum distance due to the “restriction of the building near the boundary”, the front surface of the housing 12a is set so that the housing 12a fits within a virtual semicircle having a radius of 500 mm. What is necessary is just to make it the shape by which the side corner | angular part 12j was dropped.

  Moreover, in this embodiment, although the curvature C centering on the width direction center part 200 was set in the range of 1.8-2.0 in R part 12k of the front side corner | angular part 12j of the housing | casing 12a, It is not limited to this. The case 12a may have a curvature that allows the front side corner 12j to be contained within the virtual semicircle 202.

DESCRIPTION OF SYMBOLS 10 Fuel cell system 12 Fuel cell unit 12a Case 12c Rear surface 12d Front surface 12j Front side corner | angular part 12k R part 12l Chamfering part 12l
90 Passage 90c Bending angle 200 Width direction center portion 202 Virtual semicircle 202a Virtual semicircle NH Longitudinal direction R Radius Radius TH Short direction TW Passage width

In a first aspect, there is provided a fuel cell system housing structure having a rectangular parallelepiped housing that is transported along a bend provided in a passage having a predetermined passage width and has a lateral width longer than the passage width, When assuming a virtual semicircle having a radius of the passage width centered on the widthwise central portion on one side in the lateral direction of the case, the case is accommodated in the virtual semicircle. Only the corner portion of the other surface end on the other side in the short direction is dropped.

Claims (5)

A casing structure of a fuel cell system having a casing that is transported along a corner provided in a passage having a predetermined passage width and has a lateral width longer than the passage width,
Assuming a virtual semicircle having a radius of the passage width centering on a central portion in the width direction on one surface in one side in the short side direction of the housing, the housing is arranged so as to fit within the virtual semicircle. A fuel cell system housing structure in which a corner of an end of the other surface on the other side in the lateral direction of the body is dropped.   2. The fuel cell system housing structure according to claim 1, wherein a corner portion at an end of the other surface has a chamfered shape that is chamfered so as to be within the virtual semicircle.   2. The fuel cell system casing structure according to claim 1, wherein an end corner of the other surface has an R shape that is rounded to fit within the virtual semicircle.   4. The casing structure of the fuel cell system according to claim 3, wherein a curvature of the corner portion centering on the central portion in the width direction is 2.0 or less.   4. The fuel cell system casing structure according to claim 3, wherein the passage width is 500 mm or more, and the curvature of the corner portion with the central portion in the width direction being 2.0 or less.