Fuel cell power generation device

Abstract

To provide a fuel cell power generation device that suppresses the effects of electromagnetic noise from a power wiring that outputs electric power.SOLUTION: A fuel cell power generation device includes a fuel cell unit having a fuel cell, an auxiliary unit having accessories used to operate the fuel cell, a first wiring that carries electricity generated from the fuel cell unit and is connected to the fuel cell unit and is arranged in the auxiliary unit, and a second wiring for at least one of sending and receiving signals in the fuel cell unit. The first wiring is arranged apart from the second wiring.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to fuel cell power plants. [Background technology]

[0002] Patent document 1 discloses a fuel cell module including a fuel cell stack, multiple accessories for driving the fuel cell stack, multiple maintenance parts, and a frame for supporting the fuel cell stack, the multiple accessories, and the multiple maintenance parts. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-086272 Summary of the Invention [Problem to be solved by the invention]

[0004] A fuel cell unit equipped with fuel cells is connected to power wiring that outputs electric power to the outside and signal wiring that transmits signals to the fuel cell unit. It is required that the signal wiring that transmits signals to the fuel cell unit be able to suppress the effects of electromagnetic noise from the power wiring that outputs electric power from the fuel cell unit.

[0005] The present disclosure provides a fuel cell power generation device that suppresses the effects of electromagnetic noise from power wiring that outputs electric power. [Means for solving the problem]

[0006] According to one aspect of the present disclosure, there is provided a fuel cell power generation device comprising: a fuel cell unit having a fuel cell cell; an auxiliary unit having auxiliary machinery used in operating the fuel cell cell; a first wiring that carries electricity generated from the fuel cell unit and is connected to the fuel cell unit and is positioned in the auxiliary unit; and a second wiring for at least one of transmitting and receiving signals in the fuel cell unit, wherein the first wiring is positioned away from the second wiring. Effect of the Invention

[0007] According to the fuel cell power generation system of the present disclosure, the effects of electromagnetic noise from the power wiring that outputs electric power can be suppressed. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a fuel cell power generating apparatus according to a first embodiment. [Diagram 2] FIG. 2 is a perspective view of the fuel cell power generating apparatus according to the first embodiment. [Diagram 3] FIG. 3 is a front view of the fuel cell power generating apparatus according to the first embodiment. [Figure 4] FIG. 4 is a rear view of the fuel cell power generator according to the first embodiment. [Diagram 5] FIG. 5 is a diagram illustrating the configuration of the fuel cell power generation device according to the first embodiment. [Figure 6] FIG. 6 is a diagram illustrating wiring of the fuel cell power generator according to the first embodiment. [Figure 7] FIG. 7 is a diagram illustrating wiring of the fuel cell power generator according to the first embodiment. [Figure 8] FIG. 8 is a diagram illustrating the ground wiring of the fuel cell power generator according to the first embodiment. [Figure 9] FIG. 9 is a diagram illustrating the ground wiring of the fuel cell power generator according to the first embodiment. [Figure 10] FIG. 10 is a diagram illustrating the power supply wiring of the fuel cell power generator according to the first embodiment. [Figure 11] FIG. 11 is a perspective view of a fuel cell power generating apparatus according to the second embodiment. [Figure 12] FIG. 12 is a perspective view of a fuel cell power generating apparatus according to the second embodiment. [Figure 13] FIG. 13 is a front view of the fuel cell power generating apparatus according to the second embodiment. [Figure 14] FIG. 14 is a rear view of the fuel cell power generator according to the second embodiment. [Figure 15] FIG. 15 is a perspective view of an auxiliary frame in a fuel cell power generation system according to the second embodiment. [Figure 16] FIG. 16 is a perspective view of an auxiliary frame in a fuel cell power generation system according to the second embodiment. [Figure 17] FIG. 17 is a perspective view of an auxiliary frame in a fuel cell power generation system according to the second embodiment. [Figure 18] FIG. 18 is a diagram illustrating the arrangement of auxiliaries in a fuel cell power generation system according to the second embodiment. [Figure 19] FIG. 19 is a diagram illustrating the arrangement of auxiliaries in a fuel cell power generation system according to the second embodiment. [Figure 20] FIG. 20 is a diagram illustrating the arrangement of liquid system devices and electric system devices in a fuel cell power generation system according to the second embodiment. [Figure 21] FIG. 21 is a diagram illustrating the arrangement of liquid system devices and electric system devices in a fuel cell power generation system according to the second embodiment. [Figure 22] FIG. 22 is a perspective view of a pallet in a fuel cell power generator according to the second embodiment. [Diagram 23] FIG. 23 is a side view of a pallet in a fuel cell power generator according to the second embodiment. [Figure 24] FIG. 24 is a bottom view of a pallet in a fuel cell power generation system according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, embodiments will be described with reference to the accompanying drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0010] In addition, in the description of the specification and drawings of each embodiment, components having substantially the same or corresponding functional configurations may be denoted by the same reference numerals to avoid redundant explanation. In addition, in order to facilitate understanding, the scale of each part in the drawings may differ from the actual scale.

[0011] In the directions of parallel, right-angle, orthogonal, horizontal, vertical, up-down, left-right, front-back, etc., deviations are permitted to the extent that they do not impair the effects of the embodiment. The shape of the corners is not limited to right angles and may be rounded. Parallel, right-angle, orthogonal, horizontal, and vertical may include approximately parallel, approximately right-angle, approximately orthogonal, approximately horizontal, and approximately vertical, respectively.

[0012] For example, "approximately parallel" means that even if two lines or two surfaces are not completely parallel to each other, they can be treated as parallel to each other as long as it is within the range of manufacturing tolerance. As with "approximately parallel," "approximately right angle," "approximately perpendicular," "approximately horizontal," and "approximately vertical" are also intended to correspond to the respective terms as long as the relative positional relationship between the two lines or two surfaces is within the range of manufacturing tolerance.

[0013] First Embodiment The fuel cell power generation apparatus according to the first embodiment includes a fuel cell unit including fuel cells, and an auxiliary unit. The auxiliary unit in the fuel cell power generation apparatus according to the first embodiment includes auxiliary equipment used to operate the fuel cell. The fuel cell power generation apparatus according to the first embodiment also includes a first wiring that carries electricity generated from the fuel cell unit, is connected to the fuel cell unit, and is disposed in the auxiliary unit. The fuel cell power generation apparatus according to the first embodiment also includes a second wiring for at least one of transmitting and receiving signals in the fuel cell unit. The first wiring in the fuel cell power generation apparatus according to the first embodiment is provided spaced apart from the second wiring.

[0014] The fuel cell power generation apparatus according to the first embodiment will be described in detail. Each of Fig. 1 and Fig. 2 is a perspective view of the fuel cell power generation apparatus 1, which is an example of the fuel cell power generation apparatus according to the first embodiment. Fig. 2 is a perspective view seen from a different direction from Fig. 1. Fig. 3 is a front view of the fuel cell power generation apparatus 1, which is an example of the fuel cell power generation apparatus according to the first embodiment. Fig. 4 is a rear view of the fuel cell power generation apparatus 1, which is an example of the fuel cell power generation apparatus according to the first embodiment. Fig. 5 is a diagram illustrating the configuration of the fuel cell power generation apparatus 1, which is an example of the fuel cell power generation apparatus according to the first embodiment.

[0015] For ease of explanation, the drawings may have a virtual three-dimensional coordinate system (XYZ Cartesian coordinate system) consisting of mutually orthogonal X-axis, Y-axis, and Z-axis (XYZ axes) set. For a coordinate axis perpendicular to the paper surface of the drawing, a black circle in the circle of the coordinate axis indicates that the axis faces the front side of the paper surface. Also, a cross in the circle of the coordinate axis indicates that the axis faces the back side of the paper surface.

[0016] However, this coordinate system is defined for the purpose of explanation and does not limit the attitude of the fuel cell power generation system etc. according to the first embodiment.

[0017] In the following drawings, the X-axis direction is the direction in which the fuel cell unit 10 and the auxiliary unit 20 are aligned. The X-axis direction is parallel to the horizontal plane. The Y-axis direction is perpendicular to the X-axis direction and parallel to the horizontal plane. The Z-axis direction is perpendicular to the X-axis and Y-axis directions. The Z-axis direction is perpendicular to the horizontal plane. In other words, the Z-axis direction is the vertical direction.

[0018] Additionally, a view of an object viewed from the +Y side along the Y-axis is called a front view, and a view of an object viewed from the -Y side is called a back view. Viewing an object from the +Y side along the Y-axis is called a front view, and viewing an object from the -Y side is called a back view. Viewing an object from the +Z side along the Z-axis is called a plan view, and viewing an object from the +Z side along the Z-axis is called a plan view.

[0019] With the front view as the reference, the X-axis direction is sometimes called the left-right direction, the Y-axis direction is called the front-back direction, and the Z-axis direction is called the up-down direction. With respect to an object, the +X side is sometimes called the left side, the -X side is called the right side, the +Y side is called the front side, the -Y side is called the rear side, the +Z side is called the top side, and the -Z side is called the bottom side.

[0020] The fuel cell power generation apparatus 1 is a fuel cell that uses fuel cells. The fuel cell power generation apparatus 1 is a chemical cell that uses hydrogen as fuel and converts chemical energy into electricity by reacting with oxygen in the air.

[0021] The fuel cell power generation system 1 includes a fuel cell unit 10 and an auxiliary unit 20. The fuel cell power generation system 1 also includes a pallet 30 that holds the fuel cell unit 10 and the auxiliary unit 20.

[0022] [Fuel cell unit 10] The fuel cell unit 10 generates electricity by causing a chemical reaction between hydrogen and oxygen. The fuel cell unit 10 is attached to the upper part of the -X side in the X-axis direction of the pallet 30. The fuel cell unit 10 includes a fuel cell 11, a boost converter 12, a hydrogen pump 13, a coolant pump 14, and an air compressor 15.

[0023] The fuel cell 11 generates electricity by chemically reacting the supplied hydrogen SH with oxygen contained in the air SA. The fuel cell 11 is, for example, a polymer electrolyte fuel cell (PEFC). The fuel cell 11, which is a polymer electrolyte fuel cell, has a stack structure in which many single cells are stacked.

[0024] A single cell in the fuel cell 11, which is a polymer electrolyte fuel cell, includes a membrane electrode assembly (MEA) including a polymer electrolyte membrane and a pair of electrodes provided on both sides of the polymer electrolyte membrane. The polymer electrolyte membrane selectively transports hydrogen ions. Each electrode is formed of a porous material. Each of the pair of electrodes includes a catalyst layer mainly composed of carbon powder supporting a platinum-based metal catalyst (electrode catalyst), and a gas diffusion layer having both air permeability and electronic conductivity. Furthermore, the single cell includes a pair of separators that sandwich the membrane electrode assembly (MEA) from both sides.

[0025] The electricity generated by the fuel cell 11 is boosted by the boost converter 12 and output as electric power EP. The boost converter 12 is, for example, a DC / DC converter.

[0026] The fuel cell 11 is cooled by a coolant CL1 circulating between the fuel cell 11 and the auxiliary unit 20. The auxiliary unit 20 supplies a coolant CL1L, which is a low-temperature coolant CL1, to the fuel cell 11. The coolant CL1L is sent to the fuel cell 11 by a coolant pump 14. The coolant CL1L cools the fuel cell 11. Then, the fuel cell unit 10 discharges a coolant CL1H, which is the coolant CL1 whose temperature has increased after cooling the fuel cell 11, to the auxiliary unit 20.

[0027] The boost converter 12 is cooled by a coolant CL2 circulating between the boost converter 12 and the auxiliary unit 20. Similarly, the motor of the air compressor 15 is cooled by a coolant CL2 circulating between the boost converter 12 and the auxiliary unit 20. The auxiliary unit 20 supplies a coolant CL2L, which is the low-temperature coolant CL2, to each of the boost converter 12 and the air compressor 15. The coolant CL2L cools the boost converter 12 and the motor of the air compressor 15. The fuel cell unit 10 then discharges a coolant CL2H, which is the coolant CL2 whose temperature has increased after cooling the boost converter 12 and the motor of the air compressor 15, to the auxiliary unit 20.

[0028] Hydrogen SH is supplied to the fuel cell 11 provided in the fuel cell unit 10 through the auxiliary unit 20. Of the hydrogen SH supplied to the fuel cell 11, unreacted hydrogen discharged is returned to the fuel cell 11 by the hydrogen pump 13. In addition, air SA is supplied to the fuel cell unit 10 from the auxiliary unit 20. The air SA supplied from the auxiliary unit 20 is compressed by an air compressor 15 and supplied to the fuel cell 11.

[0029] [Auxiliary Unit 20] The auxiliary unit 20 is used when operating the fuel cell 11 of the fuel cell unit 10. The auxiliary unit 20 is attached to the upper part of the +X side in the X-axis direction of the pallet 30. The auxiliary unit 20 supplies coolant and the like to the fuel cell unit 10. The auxiliary unit 20 includes auxiliary equipment used when operating the fuel cell 11. The auxiliary unit 20 includes a frame body 20f. The auxiliary equipment included in the auxiliary unit 20 is provided inside the frame body 20f.

[0030] The auxiliary unit 20 includes, as an example of auxiliary equipment, a heat exchanger 21, a heat exchanger 22, a reservoir tank 23, a reservoir tank 24, an ion exchanger 25, an air filter 26, an electric circuit box 27, a coolant pump 28, and a gas-liquid separator 29. The auxiliary unit 20 also includes a power wiring terminal block 31, a signal wiring terminal block 32, a power wiring terminal block 33, and a ground wiring terminal block 34. The power wiring terminal block 31, the signal wiring terminal block 32, the power wiring terminal block 33, and the ground wiring terminal block 34 are each an example of a connection part. The connection part relays and connects wiring extending from either the fuel cell unit 10 or the auxiliary unit 20 to the outside.

[0031] (heat exchanger 21) The heat exchanger 21 exchanges heat between the coolant CL1 that has cooled the fuel cell 11 and the coolant CL supplied from an external cooling device 50. The heat exchanger 21 is, for example, a plate-type heat exchanger, particularly a brazed plate-type heat exchanger. The heat exchanger 21 cools the coolant CL1H that has returned from the fuel cell unit 10 after cooling the fuel cell 11 and has increased in temperature, by the coolant CL supplied from the cooling device 50. The coolant CL1L that has been cooled by heat exchange in the heat exchanger 21 is supplied to the fuel cell 11. The coolant CL is an example of a first coolant, and the coolant CL1 is an example of a second coolant.

[0032] The external cooling device 50 supplies the coolant CLL, which is a low-temperature coolant CL, to the auxiliary unit 20. Then, the cooling device 50 collects the coolant CLH, which is a high-temperature coolant CL whose temperature has increased, from the auxiliary unit 20. The cooling device 50 cools the collected coolant CLH. Then, the cooling device 50 cools the coolant CLH and supplies the coolant CLL, whose temperature has been reduced, to the auxiliary unit 20.

[0033] Regarding the coolant CL, the heat exchanger 21 exchanges heat between the coolant CLaL, which is branched off from the coolant CLL and supplied, and the coolant CL1, and discharges the coolant CLaH, whose temperature has increased. The discharged coolant CLaH merges with another coolant and returns to the cooling device 50 as the coolant CLH. Regarding the coolant CL1, the heat exchanger 21 exchanges heat between the coolant CL1H, which is supplied from the fuel cell 11, and the coolant CL, and discharges the coolant CL1L, whose temperature has decreased. The discharged coolant CL1L is supplied to the fuel cell unit 10.

[0034] The auxiliary unit 20 includes pipes 21a1 and 21a2 that allow the coolant CL to flow to the heat exchanger 21. The auxiliary unit 20 also includes pipes 21b1 and 21b2 that allow the coolant CL1 to flow between the heat exchanger 21 and the fuel cell unit. The pipes may be pipes or hoses. The material of the pipes may be metal or resin. The pipes may be an appropriate combination of straight pipes, curved pipes, reducers, joints, etc. The same applies to the following pipes.

[0035] (heat exchanger 22) The heat exchanger 22 exchanges heat between the cooling liquid CL2 that has cooled the boost converter 12 and the cooling liquid CL supplied from an external cooling device 50. The heat exchanger 22 is, for example, a plate-type heat exchanger, particularly a brazed plate-type heat exchanger. The heat exchanger 22 cools the cooling liquid CL2H that has returned from the boost converter 12 and the air compressor 15 after cooling the boost converter 12 and the air compressor 15 and has increased in temperature, by the cooling liquid CL supplied from the cooling device 50. The cooling liquid CL2L that has been cooled by heat exchange in the heat exchanger 21 is supplied to the boost converter 12 and the air compressor 15.

[0036] Regarding the coolant CL, the heat exchanger 22 exchanges heat between the coolant CLbL, which is branched off from the coolant CLL and supplied, and the coolant CL2, and discharges the coolant CLbH, whose temperature has increased. The discharged coolant CLbH is combined with another coolant and returns to the cooling device 50 as the coolant CLH. In addition, regarding the coolant CL2, the heat exchanger 22 exchanges heat between the coolant CL2H, which is supplied from each of the boost converter 12 and the air compressor 15, and the coolant CL, and discharges the coolant CL2L, whose temperature has decreased. The discharged coolant CL2L is supplied to each of the boost converter 12 and the air compressor 15.

[0037] The auxiliary unit 20 includes a pipe 22a1 and a pipe 22a2 for causing the coolant CL to flow to the heat exchanger 22.

[0038] (Reservoir Tank 23) The reservoir tank 23 is a tank that stores the coolant CL1 that cools the fuel cell 11. The reservoir tank 23 adjusts the increase or decrease of the coolant CL1 that cools the fuel cell 11. The reservoir tank 23 is provided above the auxiliary unit 20.

[0039] (Reservoir Tank 24) The reservoir tank 24 is a tank that stores the coolant CL2 that cools the boost converter 12 and the air compressor 15. The reservoir tank 24 adjusts the increase or decrease of the coolant CL2 that cools the boost converter 12 and the air compressor 15. The reservoir tank 24 is provided above the auxiliary unit 20.

[0040] (Ion exchanger 25) The ion exchanger 25 removes impurity ions contained in the coolant CL1 that cools the fuel cell 11. A degassing unit 25a that exhausts air from within the piping is provided in a piping connected to the ion exchanger 25. The degassing unit 25a is provided above the auxiliary unit 20.

[0041] (Air Filter 26) The air filter 26 removes dust and impurities that adversely affect the fuel cell from the air SA. The air filter 26 filters the air SA supplied to the fuel cell unit 10. The air filter 26 supplies clean air to the fuel cell 11 from which dust and impurities that adversely affect the fuel cell have been removed.

[0042] (Electrical Circuit Box 27) The electric circuit box 27 houses an electric circuit used to drive the fuel cell unit 10. The electric circuit box 27 includes a circuit board, a relay, and the like therein.

[0043] (Coolant pump 28) The coolant pump 28 is a pump that sends the coolant CL2 to the boost converter 12 and the air compressor 15 of the fuel cell unit 10, respectively.

[0044] (Gas-liquid separator 29) The gas-liquid separator 29 separates the moisture EW contained in the exhaust gas EG from the fuel cell 11. The gas-liquid separator 29 discharges the moisture EW separated from the exhaust gas EG, and exhaust gas EA obtained by separating the moisture EW from the exhaust gas EG.

[0045] (Power wiring terminal block 31) The power wiring terminal block 31 is a terminal block to which power wiring C1 (see FIG. 6) that transmits output from the fuel cell unit 10 is connected. The power wiring C1 connects from the fuel cell unit 10 to the power wiring terminal block 31. The power wiring terminal block 31 is provided on the +X side of the auxiliary unit 20. In other words, the power wiring terminal block 31 is provided on the side of the auxiliary unit 20 opposite the fuel cell unit 10.

[0046] The power wiring terminal block 31 is provided above the pipes 21a1, 21a2, 22a1, and 22a2 through which the coolant CL flows. By providing the power wiring terminal block 31 above the pipes 21a1, 21a2, 22a1, and 22a2 through which the coolant CL flows, it is possible to prevent a short circuit of the power wiring C1 at the power wiring terminal block 31 in the event of leakage of the coolant CL.

[0047] The power wiring terminal block 31 may be installed, for example, in a waterproof and dustproof box. When the power wiring terminal block 31 is installed in a waterproof and dustproof box, the power wiring C1 connected to the power wiring terminal block 31 may be arranged so that the portion at the power wiring terminal block 31 is the highest. In other words, the power wiring C1 connected to the power wiring terminal block 31 may be arranged so that the portion at the power wiring terminal block 31 is the uppermost apex. By installing the power wiring terminal block 31 in a waterproof and dustproof box, it is possible to prevent the adhesion of the coolant CL to the power wiring terminal block 31. By preventing the adhesion of the coolant CL to the power wiring terminal block 31, it is possible to prevent a short circuit in the power wiring C1.

[0048] The power wiring terminal block 31 may be, for example, a terminal block with a voltage resistance specification. The power wiring terminal block 31 may also be provided with, for example, an insulating cover. By providing the power wiring terminal block 31 with an insulating cover, it is possible to prevent electric shock due to carelessness.

[0049] Although the power wiring terminal block 31 has been described as an example, it is not limited to a terminal block as long as it can relay and connect the power wiring C1 extending from the fuel cell unit 10 to the outside. In other words, the auxiliary unit 20 only needs to be provided with a power wiring connection part that relays the power wiring C1 to the outside. The power wiring terminal block 31 is an example of a power wiring connection part.

[0050] (Signal wiring terminal block 32) The signal wiring terminal block 32 is connected to a signal wiring C2 (see FIG. 6) that transmits signals between the electric circuit box 27 and a signal wiring C3 (see FIG. 6) that transmits signals between the fuel cell unit 10. The power wiring terminal block 31 is provided spaced apart from the signal wiring terminal block 32. The power wiring terminal block 31 is preferably spaced apart from the signal wiring terminal block 32 by, for example, 15 centimeters or more.

[0051] Although the signal wiring terminal block 32 has been described as an example, it is not limited to a terminal block as long as the signal wiring C2 and the signal wiring C3 can be connected by relaying them to the outside. In other words, the auxiliary unit 20 only needs to be provided with a signal wiring connection part that relays at least one of the signal wiring C2 and the signal wiring C3 to the outside. The signal wiring terminal block 32 is an example of a signal wiring connection part.

[0052] (Power wiring terminal block 33) The power supply wiring terminal block 33 is connected to a power supply wiring P1 (see FIG. 10) that supplies DC power to the electric circuit box 27.

[0053] (Ground wiring terminal block 34) The ground wiring terminal block 34 is connected to the ground wiring G1 (see FIG. 8) and the ground wiring G2 (see FIG. 9).

[0054] (Hydrogen detector 35a and hydrogen detector 35b) Each of the hydrogen detectors 35a and 35b detects, for example, hydrogen leaked from a pipe.

[0055] The fuel cell power generation apparatus 1 has connection surfaces for wiring and piping concentrated on the left side (+X side) surface of the auxiliary unit 20. By having connection surfaces for wiring and piping concentrated on the left side (+X side) surface of the auxiliary unit 20, the fuel cell power generation apparatus 1 can efficiently perform wiring and piping work.

[0056] <About wiring> The layout of wiring in the fuel cell power generator according to the first embodiment will be described using the fuel cell power generator 1.

[0057] The following describes the power wiring C1, the signal wiring C2, and the signal wiring C3 provided in the fuel cell power generator 1. Fig. 6 is a diagram illustrating wiring in the fuel cell power generator 1, which is an example of the fuel cell power generator according to the first embodiment.

[0058] [Power wiring C1] The power wiring C1 is a wiring that carries electricity generated in the fuel cell unit 10. The power wiring C1 connects from the fuel cell unit 10 to the power wiring terminal block 31. The power wiring C1 is provided on the rear side (-Y side) of the auxiliary unit 20 and above the center (+Z side). In other words, the power wiring C1 is disposed at an end of the auxiliary unit 20. In particular, the power wiring C1 is disposed at the upper end of the auxiliary unit 20. Note that the power wiring C1 may be configured so that electricity flows from an externally provided storage battery to the fuel cell unit 10 at startup, for example.

[0059] The power wiring C1 is provided above the pipes 21a1 and 21a2 through which the cooling liquid CL from the outside flows, and above the pipes 21b1 and 21b2 through which the cooling liquid CL1 flows. Each of the pipes 21a1 and 21a2 is an example of a first pipe, and each of the pipes 21b1 and 21b2 is an example of a second pipe.

[0060] The fuel cell power generator 1 may be provided with a light-up lamp that can determine whether or not electricity is flowing through the power wiring C1. In other words, the fuel cell power generator 1 may be provided with a light-up lamp in the power wiring C1 that can determine whether or not electricity is flowing. For example, the fuel cell power generator 1 may be provided with a lamp that lights up under a voltage condition of 42 volts or more. By providing a light-up lamp that can determine whether or not electricity is flowing through the power wiring C1, it is possible to call attention when wiring the power wiring C1 not to perform wiring work while it is in an energized state.

[0061] [Signal wiring C2] The signal wiring C2 is a wiring that transmits control signals and the like between the outside of the fuel cell power generation apparatus 1 and the electric circuit box 27. The signal wiring C2 is connected from the electric circuit box 27 to the signal wiring terminal block 32. The signal wiring C2 is provided on the front side (+Y side) and left side (+X side) of the auxiliary unit 20. The signal wiring C2 is provided away from the power wiring C1. The signal wiring C2 is preferably provided away from the power wiring C1 by, for example, 15 centimeters or more in a straight line distance. The same applies to each of the signal wiring C3, signal wiring C4, and signal wiring C5 described below.

[0062] [Signal wiring C3] The signal wiring C3 is a wiring that transmits control signals and the like between the fuel cell unit 10 and the electric circuit box 27, and also transmits control signals and the like between the fuel cell unit 10 and the fuel cell power generation device 1 via the signal wiring terminal block 32. The signal wiring C3 is wired from the fuel cell unit 10 on the lower side (-Z side) along the Y-axis direction from the rear side (-Y side) to the front side (+Y side). The signal wiring C3 is wired from the fuel cell unit 10 on the lower side (-Z side) along the X-axis direction from the right side (-X side) to the left side (+X side). The signal wiring C3 branches and connects to the electric circuit box 27 and the signal wiring terminal block 32 from the lower side (-Z side) along the Z-axis direction. The signal wiring C3 is provided away from the power wiring C1.

[0063] Note that wiring along the X-axis direction is not limited to wiring strictly parallel to the X-axis direction. For example, wiring along the X-axis direction may be inclined in any direction with respect to the X-axis direction, or may be bent midway with respect to the X-axis direction. The same applies to wiring along the Y-axis direction and wiring along the Z-axis direction. This also applies to the following explanation.

[0064] Next, there will be described the signal wiring C4 and the signal wiring C5 provided in the fuel cell power generator 1. Fig. 7 is a diagram illustrating wiring of the fuel cell power generator 1, which is an example of the fuel cell power generator according to the first embodiment.

[0065] [Signal wiring C4] The signal wiring C4 is wiring that transmits measurement signals and the like between the fuel cell unit 10 and the air filter 26. The signal wiring C4 is wired from the fuel cell unit 10 on the lower side (-Z side) along the Y-axis direction from the rear side (-Y side) to the front side (+Y side). The signal wiring C4 is wired from the fuel cell unit 10 on the lower side (-Z side) along the X-axis direction from the right side (-X side) to the left side (+X side). The signal wiring C4 is connected to the air filter 26 from the lower side (-Z side) along the Z-axis direction. The signal wiring C4 is provided away from the power wiring C1.

[0066] [Signal wiring C5] The signal wiring C5 is wiring that transmits measurement signals and the like between the fuel cell unit 10 and each of the hydrogen detectors 35a and 35b. The signal wiring C5 connects to each of the hydrogen detectors 35a and 35b from the upper side (+Z side) of the fuel cell unit 10. The signal wiring C5 is provided away from the power wiring C1.

[0067] Each of the power wiring C1, the signal wiring C2, the signal wiring C3, the signal wiring C4, and the signal wiring C5 may have a waterproof / dustproof connector or a rod terminal at the end. By each of the power wiring C1, the signal wiring C2, the signal wiring C3, the signal wiring C4, and the signal wiring C5 having a waterproof / dustproof connector or a rod terminal at the end, the wiring work can be performed without using tools. By performing the wiring work without using tools, the wiring work can be performed efficiently with fewer man-hours.

[0068] Furthermore, each of the signal wiring C2, the signal wiring C3, the signal wiring C4, and the signal wiring C5 may be a shielded cable. It is desirable to route each of the signal wiring C2, the signal wiring C3, the signal wiring C4, and the signal wiring C5 away from noise sources such as switching power supplies, power converters, inverters, and converters. By routing each of the signal wiring C2, the signal wiring C3, the signal wiring C4, and the signal wiring C5 away from the noise sources, noise from the noise sources to each of the signal wiring C2, the signal wiring C3, the signal wiring C4, and the signal wiring C5 can be suppressed.

[0069] Furthermore, a partition may be provided between the power wiring C1 and the signal wiring provided near the power wiring C1. In other words, the power wiring C1 may be provided separated from the signal wiring provided near the power wiring C1 by a partition.

[0070] Furthermore, each of the signal wirings C2, C3, C4, and C5 may be wired in consideration of the wiring length, wiring path, or wiring type so as to avoid loops along the way. By wiring so as to avoid loops, it is possible to suppress noise generation in each of the signal wirings C2, C3, C4, and C5. Furthermore, by wiring so as to avoid loops, it is possible to prevent electromagnetic wave radiation due to antenna action.

[0071] The signal wiring provided in the fuel cell power generation apparatus 1 may be connected to the fuel cell unit 10 and a connection section, and may at least either transmit or receive signals from the fuel cell unit 10 to or from the outside. Also, the signal wiring provided in the fuel cell power generation apparatus 1 may be connected to the auxiliary equipment provided in the auxiliary unit 20 and a connection section, and at least either transmit or receive signals from the auxiliary equipment to or from the outside.

[0072] Next, we will explain the ground wiring G1 and the ground wiring G2 provided in the fuel cell power generator 1. Figures 8 and 9 are diagrams for explaining the ground wiring of the fuel cell power generator 1, which is an example of the fuel cell power generator according to the first embodiment.

[0073] [Grounding wiring G1] The ground wiring G1 is a wiring that connects the housing of the fuel cell unit 10 to the ground wiring terminal block 34. The ground wiring G1 is provided along the X-axis direction from the ground wiring terminal block 34 to the lower side (-Z side) and rear side (-Y side) of the auxiliary unit 20. The ground wiring G1 is folded back along the lower side (-Z side) and rear side (-Y side) of the fuel cell unit 10 and then connected to the housing of the fuel cell unit 10. Note that, although the ground wiring G1 is folded back and connected to the housing of the fuel cell unit 10 in FIG. 8, it may be connected without folding back.

[0074] [Grounding wiring G2] The ground wiring G2 is a wiring that connects each of the ground terminal and the electric circuit box 27 in the fuel cell unit 10 to the ground wiring terminal block 34. The ground wiring G2 is provided from the ground wiring terminal block 34 to the lower side (-Z side) of the auxiliary unit 20, at the rear side (-Y side), along the X-axis direction. The ground wiring G2 branches along the way. One of the branched ground wiring G2 connects to the ground terminal in the fuel cell unit 10. The other of the branched ground wiring G2 is provided along the Y-axis direction from the rear side (-Y side) to the front side (+Y side) on the lower side (-Z side) of the auxiliary unit 20. The other of the branched ground wiring G2 is provided along the X-axis direction from the right side (-X side) to the left side (+X side) on the lower side (-Z side) of the auxiliary unit 20 along the way. The other of the branched ground wiring G2 is provided along the Z-axis direction from the lower side (-Z side) to the upper side (+Z side). The other end of the branched ground wiring G2 is connected to the electric circuit box 27.

[0075] Next, there will be described the power supply wiring P1 provided in the fuel cell power generator 1. Fig. 10 is a diagram illustrating the power supply wiring P1 of the fuel cell power generator 1, which is an example of the fuel cell power generator according to the first embodiment.

[0076] [Power supply wiring P1] The power supply wiring P1 is a wiring that supplies power to each of the fuel cell unit 10 and the auxiliary unit 20. The power supply wiring P1 is connected to, for example, a battery with an output voltage of 12 volts. The power supply wiring P1 is a wiring that connects the electric circuit box 27 and the power supply wiring terminal block 33. The power supply wiring P1 is provided from the power supply wiring terminal block 33 to the lower side (-Z side) of the auxiliary unit 20, on the left side (+X side) along the Y-axis direction. The power supply wiring P1 extends from the left side (+X side) to the right side (-X side) along the X-axis direction on the lower side (-Z side) of the auxiliary unit 20, turns back, and extends to the left side (+X side). The power supply wiring P1 extends from the lower side (-Z side) to the upper side (+Z side) along the Z-axis direction, and connects to the electric circuit box 27.

[0077] A filter may be provided on the wiring between the power supply source, for example, the power supply wiring P1 or the battery, and the motor provided in at least one of the fuel cell unit 10 and the auxiliary unit 20. The filter may be, for example, an LCR filter including a coil, a capacitor, and a resistor. By providing a filter on the wiring between the power supply source and the motor, it is possible to suppress radiation of electromagnetic waves from the wiring. By suppressing radiation of electromagnetic waves from the wiring, it is possible to reduce noise in the signal wiring.

[0078] Each of the power wiring C1, the signal wiring C2, the signal wiring C3, the signal wiring C4, the signal wiring C5, the ground wiring G1, the ground wiring G2 and the power supply wiring P1 may be appropriately fixed to a structure in the auxiliary unit 20 at some intermediate point.

[0079] According to the fuel cell power generation system of the first embodiment, the signal wiring is provided separate from the power wiring, thereby making it possible to suppress the influence of noise from the power wiring.

[0080] In the fuel cell power generator according to the first embodiment, the power wiring terminal block, the signal wiring terminal block, the ground wiring terminal block, and the power supply wiring terminal block are arranged together on the side of the auxiliary unit opposite the fuel cell unit. By arranging the power wiring terminal block, the signal wiring terminal block, the ground wiring terminal block, and the power supply wiring terminal block together on the side of the auxiliary unit opposite the fuel cell unit, the fuel cell power generator according to the first embodiment can improve the efficiency of wiring work.

[0081] Second Embodiment A fuel cell power generation device according to the second embodiment will now be described. The fuel cell power generation device according to the second embodiment comprises a fuel cell unit equipped with fuel cell cells, and an auxiliary unit equipped with auxiliary equipment for operating the fuel cell cells. The auxiliary equipment unit in the fuel cell device according to the second embodiment comprises an auxiliary equipment frame to which the auxiliary equipment is attached. Furthermore, the fuel cell device according to the second embodiment comprises a reinforcing member that reinforces the auxiliary equipment frame, and the auxiliary equipment is fixed by the reinforcing member.

[0082] The fuel cell power generation system according to the second embodiment will be described in detail with reference to the drawings. Figs. 11 and 12 are each a perspective view of a fuel cell power generation system 2, which is an example of the fuel cell power generation system according to the second embodiment. Fig. 12 is a perspective view seen from a different direction from Fig. 11. Fig. 13 is a front view of the fuel cell power generation system 2, which is an example of the fuel cell power generation system according to the second embodiment. Fig. 14 is a rear view of the fuel cell power generation system 2, which is an example of the fuel cell power generation system according to the second embodiment.

[0083] In addition, in the drawings, as in the description of the first embodiment, for convenience of explanation, a virtual three-dimensional coordinate system (XYZ orthogonal coordinate system) consisting of an X-axis, a Y-axis, and a Z-axis (XYZ axes) that are mutually perpendicular may be set.

[0084] The fuel cell power generation apparatus 2 is a fuel cell that uses fuel cells, similar to the fuel cell power generation apparatus 1. The fuel cell power generation apparatus 2 includes a fuel cell unit 110 and an auxiliary unit 120. The fuel cell power generation apparatus 2 also includes a pallet 130 that holds the fuel cell unit 110 and the auxiliary unit 120.

[0085] The fuel cell unit 110 is attached by a mounting plate 135 fixed to the +Y side of the pallet 130, and a mounting plate 136 fixed to the -Y side of the pallet 130. The fuel cell unit 110 is fixed to the mounting plate 135 by four bolts BT. The fuel cell unit 110 is also fixed to the mounting plate 136 by four bolts BT.

[0086] The fuel cell unit 110 is fixed to the pallet 130 with eight bolts BT, but five or more bolts BT may be used. In other words, the fuel cell unit 110 may be fixed to the pallet 130 at five or more points. Fixing the fuel cell unit 110 to the pallet 130 at four or fewer points may not be sufficient, so it is preferable for the fuel cell unit 110 to be fixed to the pallet 130 at five or more points.

[0087] Since the fuel cell unit 110 has the same functions and configuration as the fuel cell unit 10, the description of the fuel cell unit 10 should be referred to for the fuel cell unit 110, and a detailed description of the fuel cell unit 110 will be omitted here.

[0088] [Auxiliary Unit 120] The auxiliary unit 120 is used when operating the fuel cell of the fuel cell unit 110. The auxiliary unit 120 is attached to the upper part of the +X side in the X-axis direction of the pallet 130. The auxiliary unit 120 supplies a coolant and the like to the fuel cell unit 110. The auxiliary unit 120 includes auxiliary equipment used when operating the fuel cell in the fuel cell unit 110. The auxiliary unit 120 includes a frame 120f. The frame 120f is an example of an auxiliary frame.

[0089] The auxiliary unit 120 includes, as examples of auxiliary equipment, a heat exchanger 121, a heat exchanger 122, a reservoir tank 123, a reservoir tank 124, an ion exchanger 125, an air filter 126, and an electric circuit box 127. The auxiliary unit 120 also includes a coolant pump and a gas-liquid separator, similar to the coolant pump 28 and the gas-liquid separator 29, respectively, in the fuel cell power generation system 1. The auxiliary unit 120 also includes a hydrogen detector 145a and a hydrogen detector 145b, similar to the hydrogen detector 35a and the hydrogen detector 35b in the fuel cell power generation system 1.

[0090] The auxiliary unit 120 includes a power wiring terminal block 141, a signal wiring terminal block 142, a power wiring terminal block 143, and a ground wiring terminal block 144. Each of the power wiring terminal block 141, the signal wiring terminal block 142, the power wiring terminal block 143, and the ground wiring terminal block 144 is an example of a connection part. The connection part relays and connects wiring extending from either the fuel cell unit 110 or the auxiliary unit 120 to the outside.

[0091] The heat exchanger 121 has the same function and configuration as the heat exchanger 21 in the fuel cell power generation system 1, and therefore a detailed description of the heat exchanger 121 will be omitted here and the description of the heat exchanger 21 in the fuel cell power generation system 1 should be referred to. The same applies to the heat exchanger 122, the reservoir tank 123, the reservoir tank 124, the ion exchanger 125, the air filter 126, the electric circuit box 127, the coolant pump provided in the auxiliary unit 120, and the gas-liquid separator provided in the auxiliary unit 120. The same also applies to the power wiring terminal block 141, the signal wiring terminal block 142, the power wiring terminal block 143, and the ground wiring terminal block 144.

[0092] A description will now be given of a frame 120f which is an example of an auxiliary frame provided in the auxiliary unit 120. Figures 15, 16 and 17 are each a perspective view of the frame 120f which is an auxiliary frame in a fuel cell power generator 2 which is an example of a fuel cell power generator according to the second embodiment. For the sake of explanation, a heat exchanger 121 is also shown in each of Figures 15, 16 and 17.

[0093] The frame 120f includes a bar 120f1, a bar 120f2, a bar 120f3, and a bar 120f4 on the -Z side. The bar 120f1 and the bar 120f3 each extend along the Y-axis direction. The bar 120f3 is provided at a distance from the bar 120f1 on the -X side along the X-axis direction. The bar 120f2 and the bar 120f4 each extend along the X-axis direction. The bar 120f4 is provided at a distance from the bar 120f2 on the -Y side along the Y-axis direction. The bar 120f1, the bar 120f2, the bar 120f3, and the bar 120f4 each are, for example, steel bars having an L-shaped cross section. The same applies to the following bars. The bar material is not limited to a section steel having an L-shaped cross section, but may be, for example, a section steel having a C-shaped or U-shaped cross section, a round bar, a square bar, or the like.

[0094] The end of the bar 120f1 on the +Y side is connected to the end of the bar 120f2 on the +X side. The end of the bar 120f1 on the -Y side is connected to the end of the bar 120f4 on the +X side. The end of the bar 120f3 on the +Y side is connected to the end of the bar 120f2 on the -X side. The end of the bar 120f3 on the -Y side is connected to the end of the bar 120f4 on the -X side. The bar 120f1, the bar 120f2, the bar 120f3, and the bar 120f4 are rectangular in plan view, that is, when viewed from the +Z side along the Z-axis direction. The frame 120f includes a connecting member 120fm1 that connects the bar 120f1 and the bar 120f3. Furthermore, the frame 120f includes a connecting member 120fm1 that connects the bar 120f1 and the bar 120f3, and a connecting member 120fm2 that connects the bar 120f2.

[0095] The frame 120f is fixed to the pallet 130 by fixing each of the bars 120f1, 120f2, 120f3, 120f4 and the connecting member 120fm2 to the pallet 130 with bolts BT2. The frame 120f is fixed to the pallet 130 with nine bolts BT2.

[0096] The frame body 120f is fixed to the pallet 130 by nine bolts BT2, but five or more bolts BT2 may be used. In other words, the frame body 120f, which is an example of an accessory frame, may be fixed to the pallet 130 at five or more points. Since fixing the frame body 120f to the pallet 130 at four or fewer points may not be sufficient, it is preferable that the frame body 120f be fixed to the pallet 130 at five or more points.

[0097] The frame 120f also includes a bar 120f5, a bar 120f6, a bar 120f7, and a bar 120f8 extending along the Z-axis direction. The -Z end of the bar 120f5 is connected to the corner where the bar 120f1 and the bar 120f4 are joined. The -Z end of the bar 120f6 is connected to the corner where the bar 120f1 and the bar 120f2 are joined. The -Z end of the bar 120f7 is connected to the corner where the bar 120f2 and the bar 120f3 are joined. The -Z end of the bar 120f8 is connected to the corner where the bar 120f3 and the bar 120f4 are joined.

[0098] Each of the bars 120f5 and 120f8 is longer than each of the bars 120f6 and 120f7.

[0099] Furthermore, the frame 120f includes a bar 120fa, a bar 120fb, a bar 120fc, and a bar 120fd on the +Z side. The bar 120fa and the bar 120fc each extend along the Y-axis direction. The bar 120fc is provided at a distance from the bar 120fa along the X-axis direction on the -X side. The bar 120fb and the bar 120fd each extend along the X-axis direction. The bar 120fd is provided at a distance from the bar 120fc along the Y-axis direction on the -Y side in a plan view.

[0100] The end of the bar 120fa on the +Y side is connected to the end of the bar 120fb on the +X side. The end of the bar 120fa on the -Y side is connected between the end of the bar 120f5 on the +Z side and the end of the bar 120f5 on the -Z side. The end of the bar 120fc on the +Y side is connected to the end of the bar 120fb on the -X side. The end of the bar 120fc on the -Y side is connected between the end of the bar 120f8 on the +Z side and the end of the bar 120f8 on the -Z side. The end of the bar 120fd on the +X side is connected to the end of the bar 120f5 on the +Z side. The end of the bar 120fd on the -X side is connected to the end of the bar 120f8 on the +Z side.

[0101] The end of the bar 120f6 on the +Z side is connected to the corner where the bar 120fa and the bar 120fb are joined, and the end of the bar 120f7 on the +Z side is connected to the corner where the bar 120fb and the bar 120fc are joined.

[0102] The bar material 120fa, the bar material 120fb, the bar material 120fc, and the bar material 120fd are rectangular in plan view. Moreover, the bar material 120fa, the bar material 120fb, the bar material 120fc, and the bar material 120fd are configured to overlap with the bar material 120f1, the bar material 120f2, the bar material 120f3, and the bar material 120f4 in plan view.

[0103] The frame 120f has a top surface 120fS defined by the bars 120fa, 120fb and 120fc.

[0104] The frame 120f includes a reinforcing member 120fr that connects the bar 120f5 and the bar 120f8 to reinforce the frame 120f. The heat exchanger 121 is fixed by the reinforcing member 120fr. The number of parts can be reduced by fixing the heat exchanger 121, which is one of the auxiliaries, to the reinforcing member 120fr that reinforces the frame 120f. Furthermore, the material cost and the number of assembly steps can be reduced by fixing the heat exchanger 121, which is one of the auxiliaries, to the reinforcing member 120fr that reinforces the frame 120f.

[0105] The frame body 120f may include a connecting member 120fm that connects between the rods included in the frame body 120f. The connecting member 120fm may connect between the rods included in the frame body 120f and the connecting member 120fm. By including the connecting member 120fm in the frame body 120f, the rigidity of the frame body 120f can be increased.

[0106] The bar is an example of a structural member.

[0107] Next, there will be described the arrangement of the auxiliaries in the auxiliary unit 120. Each of Figures 18 and 19 is a diagram for explaining the arrangement of the auxiliaries in a fuel cell power generation system 2, which is an example of a fuel cell power generation system according to the second embodiment.

[0108] Among the accessories in the accessory unit 120, maintenance parts that require maintenance during operation, such as the reservoir tank 123, the reservoir tank 124, the ion exchanger 125, and the air filter 126, are provided on a top surface 120fS of the frame 120f. In other words, the frame 120f, which is an example of an accessory frame, has maintenance parts on the top surface 120fS.

[0109] The +X side surface of the auxiliary unit 120 in the fuel cell power generation plant 2 is, for example, a maintenance surface 120S through which workers or the like can access the auxiliary.

[0110] In the frame 120f, a part of the periphery above the top surface 120fS is frameless. The space 120V in which the maintenance parts are provided, in other words, the space 120V above the top surface 120fS of the frame 120f, is a space in which at least one side around the maintenance parts is open. By providing the maintenance parts of the auxiliary unit 120 on the top surface 120fS of the frame 120f, it is possible to easily access them from the maintenance surface 120S.

[0111] Furthermore, among the maintenance parts, those requiring particularly complicated maintenance work, such as the ion exchanger 125 and the air filter 126, are provided near the maintenance surface 120S. By providing among the maintenance parts, those requiring particularly complicated maintenance work near the maintenance surface 120S, it is possible to improve the efficiency of the maintenance work.

[0112] Furthermore, the reservoir tank 124, which is an example of a maintenance part, is fixed to the frame body 120f by a support 120s1 fixed to the frame body 120f shown in Figures 15 to 17 with both ends supported. The ion exchanger 125, which is an example of a maintenance part, is fixed to the frame body 120f by a support 120s2 fixed to the frame body 120f with both ends supported, and by supports 120t1 and 120t2 whose section modulus has been increased to increase rigidity. The support 120t1 and support 120t2 have a U-shaped cross section to increase the section modulus and increase rigidity.

[0113] A support with maintenance parts fixed at both ends or a support with increased rigidity due to an increased section modulus provides the rigidity to withstand vibrations during operation of the fuel cell power generation system 2 and shocks during transportation.

[0114] Next, we will explain the liquid system devices and the electrical system devices in the auxiliary unit 120. Each of Figures 20 and 21 is a diagram explaining the arrangement of the liquid system devices and the electrical system devices in a fuel cell power generation system 2, which is an example of a fuel cell power generation system according to the second embodiment.

[0115] In the fuel cell power generation system 2, the electrical system devices are arranged apart from the liquid system devices. More specifically, the space in which the electrical system devices are arranged is provided separately from the space in which the liquid system devices are arranged. The electrical system devices are provided in the space SE1 or the space SE2. The electrical system devices are, for example, power wiring, signal wiring, and an electrical circuit box 127. The liquid system devices are provided in the space SW. The liquid system devices are, for example, a cooling liquid pipe, a heat exchanger 121, a heat exchanger 122, a reservoir tank 123, a reservoir tank 124, and an ion exchanger 125.

[0116] In the fuel cell power generation system 2, the electric system devices are arranged away from the liquid system devices, thereby making it possible to prevent liquid leaking from the liquid system devices in an emergency from getting onto the electric system devices such as the electric wiring. By preventing liquid leaking from the liquid system devices in an emergency from getting onto the electric system devices such as the electric wiring, it is possible to prevent leakage current in the electric system devices.

[0117] Furthermore, in the fuel cell power generator 2, power wiring for transmitting electricity generated in the fuel cell unit to the outside is provided in the space SE1. Furthermore, in the fuel cell power generator 2, signal wiring for transmitting and receiving signals in the fuel cell unit is provided in the space SE2. The space SE2 is provided at a distance from the space SE1. By providing the spaces SE1 and SE2 at a distance, the signal wiring is provided at a distance from the power wiring. Note that with regard to the point that the signal wiring is provided at a distance from the power wiring, please refer to the description of the fuel cell power generator 1, which is an example of the fuel cell power generator according to the first embodiment, and a detailed description will be omitted here.

[0118] [Palette 130] The pallet 130 is a mobile platform capable of transporting the fuel cell unit 110 and the auxiliary unit 120 as a unit. The pallet 130 can be lifted by the transport equipment by inserting a loading member of the transport equipment, for example, the forks of a forklift, into the interior of the pallet 130. The transport equipment may be equipment capable of transporting the fuel cell power generation system 2, for example, a loading vehicle, a crane, a hand lifter, etc. Furthermore, the loading member is not limited to a fork, and may be any member on which the fuel cell power generation system 2 can be placed.

[0119] Pallet 130 is provided with eyebolts 139a, 139b, 139c, and 139d so that it can be lifted by a transport device, such as a crane.

[0120] The pallet 130 will be described in more detail. Fig. 22 is a perspective view of the pallet 130 in the fuel cell power generation apparatus 2, which is an example of the fuel cell power generation apparatus according to the second embodiment. Fig. 23 is a side view of the pallet 130 in the fuel cell power generation apparatus 2, which is an example of the fuel cell power generation apparatus according to the second embodiment. Specifically, it is a side view seen from the +X side along the X-axis direction. Fig. 24 is a bottom view of the pallet 130 in the fuel cell power generation apparatus 2, which is an example of the fuel cell power generation apparatus according to the second embodiment.

[0121] The pallet 130 has a longitudinal direction along the X-axis.

[0122] The pallet 130 includes frame members 131 and 132 each having a C-shaped or U-shaped cross section. In other words, each of the frame members 131 and 132 is composed of a C-shaped member having a C-shaped cross section or a U-shaped member having a U-shaped cross section. In this specification, a C-shaped cross section or a U-shaped cross section means that one of the four sides of a rectangular cross section is open. In other words, it does not mean that the unopened side is rounded, as in the case of a C-shape. The C-shaped member or U-shaped member is, for example, a shaped steel, for example, a lip-channel steel material, or a so-called C-channel steel material.

[0123] Each of the frame members 131 and 132 extends along the X-axis direction. The frame member 132 is provided spaced apart from the frame member 131 in the Y-axis direction.

[0124] A flat plate member 131a is provided at the end of the +X side of frame member 131 so as to cover the -Z side. Frame member 131 and plate member 131a form an opening 131h1 on the +X side. A flat plate member 131b is provided at the end of the -X side of frame member 131 so as to cover the -Z side. Frame member 131 and plate member 131b form an opening 131h2 on the -X side.

[0125] A flat plate member 132a is provided at the end of the +X side of the frame member 132 so as to cover the -Z side. The frame member 132 and the plate member 132a form an opening 132h1 on the +X side. A flat plate member 132b is provided at the end of the -X side of the frame member 132 so as to cover the -Z side. The frame member 132 and the plate member 132b form an opening 132h2 on the -X side.

[0126] As mentioned above, the pallet 130 comprises a combination of C-members and flat plates.

[0127] Pallet 130 includes connecting member 133a, connecting member 133b, connecting member 133c, connecting member 133d, and connecting member 133e to connect frame member 131 and frame member 132. Each of connecting member 133a, connecting member 133b, connecting member 133c, connecting member 133d, and connecting member 133e is configured of a C-shaped member having a C-shaped cross section or a U-shaped member having a U-shaped cross section.

[0128] By providing plate members of the smallest possible size only at the fixing locations of the pallet 130 for fixing the fuel cell power generation apparatus 2, which has little effect on the rigidity of the pallet 130, it is possible to reduce costs and weight.

[0129] The present disclosure also includes aspects described in the following appendices.

[0130] [Appendix 1] a fuel cell unit including a fuel cell; an auxiliary unit including an auxiliary device and a terminal block used when operating the fuel cell; a first wiring that carries electricity generated from the fuel cell unit and connects the fuel cell unit to the terminal block of the auxiliary unit; A second wiring for transmitting a signal to the fuel cell unit; Equipped with The first wiring is provided at a distance from the second wiring. Power generation equipment.

[0131] [Appendix 2] The fuel cell unit and the auxiliary unit are provided side by side. 2. The power generation device according to claim 1.

[0132] [Appendix 3] The terminal block is provided on the opposite side to the fuel cell unit. 3. The power generation device according to claim 2.

[0133] [Appendix 4] the auxiliary unit includes, as the auxiliary, a heat exchanger for exchanging heat between a first cooling liquid from an outside and a second cooling liquid supplied to the fuel cell unit, a first pipe connecting the heat exchanger to the outside, and a second pipe connecting the heat exchanger to the fuel cell unit; The terminal block is provided above the heat exchanger, the first pipe, and the second pipe. 2. The power generating device according to claim 1.

[0134] [Appendix 5] The terminal block includes a power wiring terminal block and a signal wiring terminal block, The power wiring terminal block is provided separately from the signal wiring terminal block. 2. The power generating device according to claim 1.

[0135] [Appendix 6] The first wiring is installed at an end of the auxiliary unit. 2. The power generating device according to claim 1.

[0136] [Appendix 7] The second wiring is installed at an end of the auxiliary unit. 2. The power generating device according to claim 1.

[0137] [Appendix 8] The first wiring is installed at an upper end of the auxiliary unit. 2. The power generating device according to claim 1.

[0138] [Appendix 9] The terminal block is installed in a waterproof and dustproof box. 2. The power generating device according to claim 1.

[0139] [Appendix 10] The first wiring further includes a light-up lamp that can determine whether or not electricity is being applied. 2. The power generating device according to claim 1.

[0140] [Appendix 11] A waterproof and dustproof connector or a rod terminal is provided at the end of the first wiring and the second wiring. 2. The power generating device according to claim 1. [Explanation of symbols]

[0141] 1, 2 Fuel cell power generation device 10, 110 Fuel cell unit 20, 120 Auxiliary Unit 21, 22, 121, 122 heat exchanger 21a1, 21a2, 21b1, 21b2, 22a1, 22a2 piping 23, 24, 123, 124 Reservoir tank 25, 125 Ion exchanger 26, 126 Air filter 27, 127 Electrical circuit box 30, 130 pallets 31, 141 Power wiring terminal block 32, 142 Signal wiring terminal block 33, 143 Power wiring terminal block 34, 144 Ground wiring terminal block 35a, 35b, 145a, 145b Hydrogen detector 50 Cooling device C1 power wiring C2, C3, C4, C5 signal wiring

Claims

1. a fuel cell unit including a fuel cell; an auxiliary unit including auxiliary devices used when operating the fuel cell; a first wiring that passes electricity generated by the fuel cell unit, is connected to the fuel cell unit, and is disposed in the auxiliary unit; a second wiring for at least one of transmitting and receiving a signal in the fuel cell unit; Equipped with The first wiring is provided at a distance from the second wiring. Fuel cell power generation equipment.

2. The accessory unit includes a connection portion.

2. The fuel cell power generating system according to claim 1.

3. The fuel cell unit and the auxiliary unit are provided side by side.

3. The fuel cell power generating system according to claim 2.

4. The connection portion is provided on the opposite side to the fuel cell unit.

4. The fuel cell power generating system according to claim 3.

5. the auxiliary unit includes, as the auxiliary, a heat exchanger for exchanging heat between a first cooling liquid from an outside and a second cooling liquid supplied to the fuel cell unit, a first pipe connecting the heat exchanger to the outside, and a second pipe connecting the heat exchanger to the fuel cell unit; The connection portion is provided above the heat exchanger, the first pipe, and the second pipe.

3. The fuel cell power generating system according to claim 2.

6. The connection portion includes a power wiring connection portion and a signal wiring connection portion, The power wiring connection portion is provided apart from the signal wiring connection portion.

3. The fuel cell power generating system according to claim 2.

7. The first wiring is installed at an end of the auxiliary unit.

2. The fuel cell power generating system according to claim 1.

8. The second wiring is installed at an end of the auxiliary unit.

2. The fuel cell power generating system according to claim 1.

9. The first wiring is installed at an upper end of the auxiliary unit.

2. The fuel cell power generating system according to claim 1.

10. The connection part is installed in a waterproof and dustproof box.

3. The fuel cell power generating system according to claim 2.

11. The first wiring is further provided with a light-up lamp capable of determining whether or not electricity is being applied.

2. The fuel cell power generating system according to claim 1.

12. A waterproof and dustproof connector or a rod terminal is provided at an end of the first wiring and the second wiring.

2. The fuel cell power generating system according to claim 1.

13. a fuel cell unit including a fuel cell; an auxiliary unit including an auxiliary device for operating the fuel cell; Equipped with The accessory unit includes an accessory frame to which the accessory is attached, A reinforcing member is provided to reinforce the accessory frame, and the accessory is fixed by the reinforcing member. Fuel cell power generation equipment.

14. The accessory frame has at least one surface around the maintenance part open.

14. The fuel cell power plant according to claim 13.

15. The auxiliary frame is provided with the maintenance part on a top surface.

15. The fuel cell power plant of claim 14.

16. The maintenance part is fixed to the auxiliary frame by a support fixed to the top surface at both ends or a support having an increased section modulus to increase rigidity.

16. The fuel cell power plant of claim 15.

17. A plurality of the maintenance parts are provided, Among the plurality of maintenance parts, the maintenance part requiring complicated maintenance work is provided near a maintenance surface.

16. The fuel cell power plant of claim 15.

18. a mobile platform capable of transporting the fuel cell unit and the auxiliary unit together; 14. The fuel cell power plant according to claim 13.

19. The auxiliary frame is fixed to the mobile platform at five or more points.

20. The fuel cell power plant of claim 18.

20. The fuel cell unit is fixed to the mobile stand at five or more points.

20. The fuel cell power plant of claim 18.

21. The moving platform has a combination of a C-shaped member and a flat plate.

20. The fuel cell power plant of claim 18.

22. The electrical equipment is arranged separately from the liquid equipment.

14. The fuel cell power plant according to claim 13.

23. a power wiring for transmitting electricity generated in the fuel cell unit to the outside; a signal wiring for transmitting and / or receiving a signal in the fuel cell unit; Equipped with The signal wiring is provided separately from the power wiring.

14. The fuel cell power plant according to claim 13.

24. The signal wiring includes wiring for at least one of transmitting and receiving signals in the auxiliary device.

24. The fuel cell power plant of claim 23.

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