JP2010097810A - Fuel cell stack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuel cell stack particularly easy to assemble. <P>SOLUTION: The fuel cell includes first to fourth fuel cell modules, which are stacked from above to down, and a fuel outlet port is set in a cathode passage plate. Each fuel cell module has the same structure and includes a cathode collector plate, one or more membrane electrode sets, an adhesive bonding film, a positioning plate, and a collector plate. The adhesive bonding film includes one housing setting space to house and set each membrane electrode set. The positioning plate includes one or more housing setting spaces, each of the one or more current collector plates is set in each housing setting space of the positioning plate, the adhesive bonding film integrally adheres the cathode collector plate to the positioning plate while holding each membrane electrode set between the cathode collector plate and the positioning plate. A first cathode end plate 101A and a second cathode end plate 101B have the same structure, and a first anode passage plate 103A and a second anode passage plate 103B have the same structure. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fuel cell stack, and more particularly, to a fuel cell stack having an advantage of easy assembly.

  Patent Document 1 “Fuel Cell Stack” posts a fuel cell stack structure. Patent document 2 “Direct Liquid Feed Fuel Cell Stack Structure” posts a fuel cell stack structure. Patent Document 3 “Fuel Cell Device” posts a fuel cell stack structure. The present invention has been made in view of structural improvements in the convenience of assembly of the conventional fuel cell stack structure.

US Patent Application Publication No. US20060051626A1 US Patent Application Publication No. US20050074652A1 US Patent Application Publication No. US20050042493A1

  A main problem to be solved by the present invention is to provide a fuel cell stack structure having an advantage that it is easy to assemble.

In order to solve the above problems, the present invention provides the following fuel cell stack.
The fuel cell stack includes a first cathode end plate, a first fuel cell module, a first anode flow passage plate, a second fuel cell module, a cathode flow passage plate, a third fuel cell module, a single second anode flow passage plate, a fourth A fuel cell module and a second cathode end plate are provided and stacked from top to bottom.
The cathode flow passage plate is provided with a fuel outlet, and the first fuel cell module, the second fuel cell module, the third fuel cell module, the fourth fuel cell module have a homogenous structure, and each fuel Each battery module includes a cathode current collector plate, at least one or more membrane electrode sets, an adhesive bonding film, a localization plate, and at least one current collector plate.
The adhesive bonding film includes at least one accommodation installation space, and each accommodation installation space accommodates and installs each membrane electrode set.
The stereotax plate has at least one accommodation installation space.
The at least one current collecting plate is installed in each accommodating installation space of the localization plate.
The adhesive bonding film integrally bonds the cathode current collector plate and the localization plate, and the cathode current collector plate and the localization plate sandwich each membrane electrode set between them, and the first cathode end The plate and the second cathode end plate have a homologous structure, and the first anode flow passage plate and the second anode flow passage plate have a homologous structure.

  The present invention has the advantage of being easy to assemble.

  The best mode for carrying out the present invention will be described in detail below with reference to the drawings. FIG. 1 is a structural diagram of a fuel cell stack according to the first embodiment of the present invention constituted by the members shown in FIGS. 2 to 5, and FIG. 2 is a three-dimensional exploded view of a first portion of the fuel cell stack according to the first embodiment of the present invention. 3 is a three-dimensional exploded view of the second part of the fuel cell stack according to the first embodiment of the present invention. FIG. 4 is a three-dimensional exploded view of the third part of the fuel cell stack according to the first embodiment of the present invention. FIG. 6 is a three-dimensional exploded view of a fourth portion of the fuel cell stack according to the first embodiment of the present invention, and FIG. 6 is a three-dimensional combination diagram of the fuel cell stack according to the first embodiment of the present invention. In the first embodiment, the fuel cell stack 10 according to an embodiment of the present invention includes a first cathode end plate 101A, a first fuel cell module 102A, a first anode flow path plate 103A, a second fuel cell module 102B, a cathode. The flow path plate 105, the third fuel cell module 102C, the second anode flow path plate 103B, the fourth fuel cell module 102D, and the second cathode end plate 101B are provided and stacked from top to bottom. The plurality of first washers 104, the plurality of second washers 106, and the plurality of pressure plates 110 are installed on the corresponding first cathode flow path plate 105, first cathode end plate 101A, and second cathode end plate 101B, respectively.

  The first fuel cell module 102A, the second fuel cell module 102B, the third fuel cell module 102C, and the fourth fuel cell module 102D are all of a homogenous structure, and each fuel cell module 102A, 102B, 102C, 102D is a cathode collector. An electric plate 1021, at least one or more membrane electrode sets 1022, an adhesive bonding film 1023, a localization plate 1024, and at least one current collector plate 1025 are provided.

  The cathode current collector plate 1021 is provided with a plurality of through holes 10211, and screw holes 10212 and holes 10213 are provided around the cathode current collector plate 1021. Each hole 10211 allows cathode fuel and cathode product to pass through. The base material of the cathode current collector plate 1021 is chemically resistant non-conductor engineering plastic substrate, plastic carbon substrate, FR4 substrate, FR5 substrate, epoxy resin substrate, glass fiber substrate, ceramic substrate, polymer plastic substrate, composite material substrate, printing One type is selected from circuit substrates and the like.

  A specific embodiment of the membrane electrode set 1022 can adopt a related known technique, and can employ a direct methanol membrane electrode set constituted by a mass exchange membrane.

  The adhesive bonding film 1023 includes at least one accommodation installation space 10231, and each accommodation installation space 10231 accommodates and installs each membrane electrode set 1022. A screw hole 10232 and a hole 10233 are provided around the adhesive bonding film 1023. Polypropylene can be used as the material of the adhesive bonding film 1023.

  The localization plate 1024 includes at least one accommodation installation space 10241, and each accommodation installation space 10241 accommodates and installs each current collector plate 1025. A screw hole 10242 and a hole 10243 are provided around the stereotaxic plate 1024. The base plate of the stereotaxic plate 1024 is chemically resistant non-conductor engineering plastic substrate, plastic carbon substrate, FR4 substrate, FR5 substrate, epoxy resin substrate, glass fiber substrate, ceramic substrate, polymer plastic substrate, composite material substrate, printed circuit board Select one type from materials.

  The current collector plate 1025 is provided with a plate body 10251 that extends outward and extends. The plate body 10251 is used for electrical connection of the respective membrane electrode sets 1022, whereby the respective membrane electrode sets 1022 can be connected in series or in parallel. The current collector plate 1025 is provided with a plurality of holes, and each hole allows the anode fuel and the anode product to pass therethrough. The current collector plate 1025 is made of a conductive material and has anti-corrosion and / or anti-oxidation anti-physical properties. For example, a stainless steel (SUS316) plate, gold foil, titanium metal, graphite material, carbon metal compound. It is optimal to select one from materials, metal alloy plates, low resistance polymer conductive plates, and the like.

  The cathode flow path plate 105 further includes an anode fuel inlet 1051 (INLET) and an anode fuel outlet 1052 (OUTLET). The anode fuel inlet 1051 and the anode fuel outlet 1052 are a single inlet / outlet of anode fuel used by the fuel cell stack 10 according to the first embodiment. The cathode flow path plate 105 is a double-sided cathode flow path plate, and the flow path structures 1053 are respectively installed on the opposite side surfaces on both sides. A passage 1056 is installed in a space located between each flow channel structure 1053, the anode fuel inlet 1051, and the anode fuel outlet 1052. A screw hole 1054 and a hole 1055 are provided around the cathode flow path plate 105. The base material of the cathode flow path plate 105 is chemically resistant non-conductor engineering plastic substrate, plastic carbon substrate, FR4 substrate, FR5 substrate, epoxy resin substrate, glass fiber substrate, ceramic substrate, polymer plastic substrate, composite material substrate, printing One type is selected from circuit substrates and the like.

  The first anode flow path plate 103A and the second anode flow path plate 103B adopt a homologous structure, and both are double-sided anode flow path plates, and the flow path structure 1031 is installed on the opposite side surfaces of both sides. To do. A screw hole 1032 and a hole 1033 are provided around the first anode flow path plate 103A and the second anode flow path plate 103B, respectively. The base material of the anode flow path plate 103A and the second anode flow path plate 103B is a chemically resistant non-conductor engineering plastic substrate, plastic carbon substrate, FR4 substrate, FR5 substrate, epoxy resin substrate, glass fiber substrate, ceramic substrate, polymer plastic One type is selected from a substrate, a composite material substrate, a printed circuit substrate, and the like.

  The first cathode end plate 101A and the second cathode end plate 101B adopt a homologous structure, and both of them are single-sided cathode end plates. At least one recess 1012 is provided. A screw hole 1013, a convex lid 1014, and a concave hole 1015 are provided around the first cathode end plate 101A and the second cathode end plate 101B, respectively. The channel 1016 having a depressed shape is installed between each flow channel structure 1011, the screw hole 1013, and the convex lid 1014. The base materials of the first cathode end plate 101A and the second cathode end plate 101B are chemically resistant non-conductor engineering plastic substrate, plastic carbon substrate, FR4 substrate, FR5 substrate, epoxy resin substrate, glass fiber substrate, ceramic substrate, polymer plastic One type is selected from a substrate, a composite material substrate, a printed circuit substrate, and the like.

  The first washer 104 is provided with at least three screw holes 1041 and two holes 1042. The screw holes 1041 and 1042 correspond to the screw holes 1054 and 1055 installed in the cathode flow path plate 105, and at the same time, the screw holes 1013 and the convex lid installed in the first cathode end plate 101A and the second cathode end plate 101B. 1014.

  The second washer 106 is provided with at least three screw holes 1061. Each screw hole 1061 corresponds to the screw hole 1054 provided in the cathode flow path plate 105 and simultaneously corresponds to the screw hole 1013 provided in the first cathode end plate 101A and the second cathode end plate 101B.

  The first washer 104 and the second washer 106 can employ rubber materials.

  The pressure plate 110 is provided with at least two screw holes 1101, and each screw hole 1101 corresponds to a screw hole 1013 provided around the first cathode end plate 101A and the second cathode end plate 101B. The pressure plate 110 can employ a hard metal material.

  When assembling the fuel cell stack 10 according to the first embodiment of the present invention, the two first washers 104 and the four second washers 106 are brought into close contact with the opposite outer surfaces of the cathode flow path plate 105, respectively. Subsequently, the two cathode current collecting plates 1021 are stacked on the outer surface of the cathode flow path plate 105, respectively, so that each of the first washer 104 and the second washer 106 is connected to the cathode flow path plate 105 and the cathode current collection plate. 1021. Next, the two adhesive bonding films 1023 are brought into close contact with the outer surfaces of the two cathode current collector plates 1021. Further, the four membrane electrode sets 1022 are put into two accommodation installation spaces 10231 of two adhesive bonding films 1023, respectively. As a result, the membrane electrode set 1022 comes into contact with the two cathode current collector plates 1021. Next, the two localization plates 1024 are brought into close contact with the outer surfaces of the two adhesive bonding films 1023. Further, the four current collecting plates 1025 are placed in the accommodation installation space 10241 of the two localization plates 1024, respectively. As a result, the current collector plate 1025 comes into contact with the anode position and the cathode position of each of the four membrane electrode sets 1022 to become the anode current collector plate 1025 and the cathode current collector plate 1025. At the same time, the plate body 10251 on which the current collector plate 1025 extends also extends out of the two localization plates 1024.

  Next, the two first anode flow path plates 103A and the second anode flow path plate 103B are brought into close contact with the outer surfaces of the two localization plates 1024 and the four current collector plates, respectively. Thus, the second fuel cell module 102B and the third fuel cell module 102C are sandwiched between the cathode flow path plate 105, the first anode flow path plate 103A, and the second anode flow path plate 103B. Subsequently, another two localization plates 1024 are brought into close contact with the outer surfaces of the two first anode flow passage plates 103A and the second anode flow passage plates 103B. Further, another four current collecting plates 1025 are placed in the accommodation installation space 10241 of the two localization plates 1024, respectively. Similarly to the above, the plate body 10251 on which the current collecting plate 1025 extends also extends out of the two localization plates 1024.

  Next, another two adhesive bonding films 1023 are adhered to the outer surfaces of the two localization plates 1024. Thus, the four current collecting plates 1025 are sandwiched between the localization plate 1024 and the adhesive bonding film 1023. Thereafter, the four membrane electrode sets 1022 are put into the two accommodation installation spaces 10241 of the two adhesive bonding films 1023, respectively. As a result, the current collector plate 1025 comes into contact with the anode position and the cathode position of the four membrane electrode sets 1022 to become the anode current collector plate 1025 and the cathode current collector plate 1025. Next, another two cathode current collector plates 1021 are brought into close contact with the outer surfaces of the two adhesive bonding films 1023 and the four membrane electrode sets 1022. Furthermore, one first washer 104 and two second washers 106 are brought into close contact with the inner surfaces of the first cathode end plate 101A and the second cathode end plate 101B, respectively, and the three pressure plates 110 are respectively The first cathode end plate 101A and the second cathode end plate 101B are brought into close contact with the concave portion 1012 on the outer surface. Next, the first cathode end plate 101A and the second cathode end plate 101B are brought into close contact with the outer surfaces of the two cathode current collector plates 1021, respectively. As a result, each first washer 104 and second washer 106 are sandwiched between the first cathode end plate 101A and the second cathode end plate 101B.

  In this way, the first fuel cell module 102A and the fourth fuel cell module 102D include the first cathode end plate 101A, the second cathode end plate 101B, the first anode flow path plate 103A, and the second anode flow path plate 103B. To complete stacking of the fuel cell stack 10 according to the first embodiment of the present invention. Finally, the first cathode end plate 101A, the first fuel cell module 102A, the first anode flow path plate 103A, the second fuel cell module 102B, the cathode flow path plate 105, the first fuel cell stack 10 are Three fuel cell modules 102C, a second anode flow path plate 103B, a fourth fuel cell module 102D, a second cathode end plate 101B, and a plurality of first washers 104, second washers 106, and screw holes of the pressure plate 110 are sequentially formed. To penetrate. In this way, the assembly of the fuel cell stack 10 according to the first embodiment of the present invention is completed.

  As shown in FIG. 7, corresponding fitting portions 21 are installed on both sides of the first cover 20 of the present invention. The first cover 20 is fitted into the concave holes 1015 of the first cathode end plate 101A and the second cathode end plate 101B on both outer sides of the fuel cell stack 10 according to the first embodiment by the fitting portion 21. Thus, the first cover 20 is coupled to the fuel cell stack 10 according to the first embodiment, and the first fan 30 is coupled to the first cover 20.

  As shown in FIG. 8, corresponding fitting portions 41 are installed on both sides of the second cover 40 of the present invention. The second cover 40 is fitted into the concave holes 1015 of the first cathode end plate 101A and the second cathode end plate 101B on both outer sides of the fuel cell stack 10 according to the first embodiment by the fitting portion 41. Thus, the second cover 40 is coupled to the fuel cell stack 10 according to the first embodiment, and the second fan 50 is coupled to the second cover 40.

  As the first fan 30 and the second fan 50, for example, a blast fan, a fan, or the like can be adopted. Its primary function is to provide a propellant for gas flow, which allows ambient air and cathode products to flow in the fuel cell stack 10 structure.

  FIG. 9 is a structural diagram of a fuel cell stack according to the second embodiment of the present invention constituted by the members shown in FIGS. 10 to 13, and FIG. 10 is a three-dimensional decomposition of the first portion of the fuel cell stack according to the second embodiment of the present invention. 11 is a three-dimensional exploded view of the second part of the fuel cell stack according to the second embodiment of the present invention. FIG. 12 is a three-dimensional exploded view of the third part of the fuel cell stack according to the second embodiment of the present invention. 13 is a three-dimensional exploded view of the fourth portion of the fuel cell stack according to the second embodiment of the present invention, and FIG. 14 is a three-dimensional combination diagram of the fuel cell stack according to the second embodiment of the present invention. In the second embodiment, the fuel cell stack 10 according to the second embodiment of the present invention includes a first cathode end plate 101A, a first fuel cell module 102A, a first anode flow path plate 103A, a second fuel cell module 102B, One cathode flow path plate 107A, third fuel cell module 102C, anode flow path plate 109, fourth fuel cell module 102D, second cathode flow path plate 107B, fifth fuel cell module 102E, second anode flow path plate 103B, A sixth fuel cell module 102F and a second cathode end plate 101B are provided and are stacked from top to bottom. The plurality of first washers 104, the plurality of second washers 106, and the plurality of pressure plates 110 are installed on the first cathode flow path plate 105, the first cathode end plate 103A, and the second cathode end plate 103B, respectively.

  The first fuel cell module 102A, the second fuel cell module 102B, the third fuel cell module 102C, the fourth fuel cell module 102D, the fifth fuel cell module 102E and the sixth fuel cell module 102F adopt a homologous structure, Each of the fuel cell modules 102A, 102B, 102C, 102D, 102E, and 102F includes a cathode current collector plate 1021, at least one membrane electrode set 1022, an adhesive bonding film 1023, a localization plate 1024, and at least one current collector. A plate 1025 is provided. The structure of each fuel cell module 102A, 102B, 102C, 102D, 102E, 102F of the second embodiment is similar to that of the fuel cell module of the first embodiment, and will not be described again.

  The anode flow passage plate 109 is further provided with an anode fuel inlet 1091 (INLET) and an anode fuel outlet 1092 (OUTLET). The anode fuel inlet 1091 and the anode fuel outlet 1092 are a single inlet / outlet of anode fuel used by the fuel cell stack 10 according to the second embodiment. The anode flow path plate 109 is a double-sided anode flow path plate, and is provided with a flow path structure 1093 on both opposite side surfaces. A screw hole 1094 and a hole 1095 are provided around the anode flow path plate 109. The base material of the anode flow path plate 109 is chemically resistant non-conductor engineering plastic substrate, plastic carbon substrate, FR4 substrate, FR5 substrate, epoxy resin substrate, glass fiber substrate, ceramic substrate, polymer plastic substrate, composite material substrate, printing One type is selected from circuit substrates and the like.

  The first anode flow path plate 103A and the second anode flow path plate 103B adopt a homologous structure, and the structure of the first anode flow path plate 103A and the second anode flow path plate 103B of the second embodiment is the first. Since it is homologous to the embodiment, it will not be described again.

  The first cathode flow path plate 107A and the second cathode flow path plate 107B adopt a homologous structure, and both are double-sided cathode flow path plates, and the flow path structure 1071 is installed on both opposite side surfaces. . A screw hole 1072 and a hole 1073 are provided around the first cathode flow path plate 107A and the second cathode flow path plate 107B, respectively. A U-shaped passage 1074 is installed between each flow channel structure 1071 and the screw holes 1072 and 1073. The base materials of the first cathode flow path plate 107A and the second cathode flow path plate 107B are chemically resistant non-conductor engineering plastic substrate, plastic carbon substrate, FR4 substrate, FR5 substrate, epoxy resin substrate, glass fiber substrate, ceramic substrate, high One type is selected from a molecular plastic substrate, a composite material substrate, a printed circuit substrate, and the like.

  The first cathode end plate 101A and the second cathode end plate 101B adopt a homologous structure, and the structure of the first cathode end plate 101A and the second cathode end plate 101B of the second embodiment is the same as that of the first embodiment. Since it is homologous, it will not be described again.

  Since the structures of the first washer 104, the second washer 106, and the pressure plate 110 adopted by the second embodiment are similar to those of the first embodiment, they will not be described again.

  When the fuel cell stack 10 according to the second embodiment of the present invention is assembled, first, the two localization plates 1024 are brought into close contact with the opposite outer sides of the anode flow path plate 109, respectively. Subsequently, the four current collecting plates 1025 are placed in the accommodation installation space 10241 of the two localization plates 1024, respectively.

  Next, the two adhesive bonding films 1023 are brought into close contact with the outer surfaces of the two localization plates 1024. Thereby, each current collecting plate 1025 is sandwiched between the localization plate 1024 and the adhesive bonding film 1023. Further, the four membrane electrode sets 1022 are put into two accommodation installation spaces 10231 of two adhesive bonding films 1023, respectively. As a result, the current collector plate 1025 comes into contact with the anode position and the cathode position of each of the four membrane electrode sets 1022 to become the anode current collector plate 1025 and the cathode current collector plate 1025. At the same time, the plate body 10251 on which the current collector plate 1025 extends also extends out of the two localization plates 1024.

  Next, the two cathode current collector plates 1021 are brought into close contact with the outer surfaces of the two adhesive bonding films 1023, whereby the four membrane electrode sets 1022 are sandwiched between the localization plate 1024 and the adhesive bonding film 1023. It is. Thereafter, the two first washers 104 and the four second washers 106 are brought into close contact with the opposite outer sides of the first cathode flow path plate 107A and the second cathode flow path plate 107B, respectively. Further, the two first cathode flow path plates 107A and the second cathode flow path plates 107B are brought into close contact with the outer surfaces of the two cathode current collector plates 1021, respectively.

  In this way, the third fuel cell module 102C and the fourth fuel cell module 102D are sandwiched between the anode flow path plate 109, the first cathode flow path plate 107A, and the second cathode flow path plate 107B. Next, another two cathode current collecting plates 1021 are brought into close contact with the outer surfaces of the first cathode flow channel plate 107A and the second cathode flow channel plate 107B. Thus, the first washer 104 and the second washer 106 are sandwiched between the cathode flow path plate 105 and the two cathode current collector plates 1021. Next, the two adhesive bonding films 1023 are brought into close contact with the outer surface of the two cathode current collector plates 1021, and the four membrane electrode sets 1022 are respectively connected to the two adhesive bonding films 1023. It puts in the accommodation installation space 10231. As a result, the membrane electrode set 1022 comes into contact with the two cathode current collector plates 1021. Next, the two localization plates 1024 are brought into close contact with the outer surfaces of the two adhesive bonding films 1023, and the four current collecting plates 1025 are respectively placed in the accommodation installation spaces 10241 of the two localization plates 1024. Put in. As a result, the current collector plate 1025 comes into contact with the anode position and the cathode position of each of the four membrane electrode sets 1022 to become the anode current collector plate 1025 and the cathode current collector plate 1025. At the same time, the plate body 10251 on which the current collector plate 1025 extends also extends out of the two localization plates 1024.

  Next, the two first anode flow path plates 103A and the second anode flow path plate 103B are brought into close contact with the outer surfaces of the two localization plates 1024 and the four current collector plates, respectively. Thereby, the second fuel cell module 102B and the fifth fuel cell module 102E are connected to the first cathode flow path plate 107A, the second cathode flow path plate 107B, the first anode flow path plate 103A, and the second anode flow path plate 103B. Between them. Next, another two localization plates 1024 are brought into close contact with the outer surfaces of the two first anode flow passage plates 103A and the second anode flow passage plate 103B, and another four current collecting plates 1025 are attached. Each of the two localization plates 1024 is placed in the accommodation installation space 10241. Accordingly, similarly to the above, the plate body 10251 on which the current collector plate 1025 extends also extends out of the two localization plates 1024. Next, another two adhesive bonding films 1023 are brought into close contact with the outer surface of the two localization plates 1024, whereby the four current collecting plates 1025 are sandwiched between the localization plate 1024 and the adhesion bonding film 1023. . Next, the four membrane electrode sets 1022 are placed in the two accommodation installation spaces 10241 of the two adhesive bonding films 1023, respectively. As a result, the current collector plate 1025 comes into contact with the anode position and the cathode position of each of the four membrane electrode sets 1022 to become the anode current collector plate 1025 and the cathode current collector plate 1025.

  Next, another two cathode current collector plates 1021 are brought into close contact with the outer surface of the two adhesive bonding films 1023 and the four membrane electrode sets 1022. Further, one first washer 104 and two second washers 106 are brought into close contact with the inner surfaces of the first cathode end plate 101A and the second cathode end plate 101B, respectively, and each of the three pressure plates 110 is fitted with a first plate. The concave portions 1012 on the outer surfaces of the one cathode end plate 101A and the second cathode end plate 101B are brought into close contact with each other. Further, the first cathode end plate 101A and the second cathode end plate 101B are brought into close contact with the outer surfaces of the two cathode current collector plates 1021, respectively, whereby the first washer 104 and the second washer 106 are connected to the first cathode end plate 1021. It is sandwiched between the plate 101A and the second cathode end plate 101B. Thus, the first fuel cell module 102A and the sixth fuel cell module 102F are placed between the first cathode end plate 101A, the second cathode end plate 101B, the first anode flow path plate 103A, and the second anode flow path plate 103B. Pinch.

  Finally, the first cathode end plate 101A, the first fuel cell module 102A, the first anode flow path plate 103A, the second fuel cell module 102B, the cathode flow path plate 105, the first fuel cell stack 10 are Three fuel cell modules 102C, a second anode flow path plate 103B, a fourth fuel cell module 102D, a second cathode end plate 101B, and a plurality of first washers 104, second washers 106, and screw holes of the pressure plate 110 are sequentially formed. In this way, the assembly of the fuel cell stack 10 according to the second embodiment of the present invention is completed.

  As shown in FIG. 15, corresponding fitting portions 21 are installed on both sides of the first cover 20 of the present invention. The first cover 20 is fitted into the concave holes 1015 of the first cathode end plate 101A and the second cathode end plate 101B on both outer sides of the fuel cell stack 10 according to the second embodiment by the fitting portion 21. Thus, the first cover 20 is coupled to the fuel cell stack 10 according to the second embodiment, and the first fan 30 is coupled to the first cover 20.

  As shown in FIG. 16, corresponding fitting portions 41 are installed on both sides of the second cover 40 of the present invention. The second cover 40 is fitted into the concave holes 1015 of the first cathode end plate 101A and the second cathode end plate 101B on the opposite outer sides of the fuel cell stack 10 according to the second embodiment by the fitting portion 41. Thus, the second cover 40 is coupled to the fuel cell stack 10 according to the second embodiment, and the second fan 50 is coupled to the second cover 40.

  As the first fan 30 and the second fan 50, for example, a blast fan, a fan, or the like can be adopted. Its main function is to provide a driving force for gas flow, so that ambient air and cathode products can flow in the fuel cell stack 10 according to the second embodiment.

  In the first and second embodiments, the holes 1042, 10213, 10243, 1033, 10233, 1055, 1073, and 1095 are passages through which the anode fuel and the anode product are circulated. Each convex lid 1014 seals each hole 1042 located on both side surfaces on the outermost side of the fuel cell stack 10.

  In the first and second embodiments, the passages 1016, 1056, and 1074 are passages through which at least the cathode fuel flows.

  The fuel cell stack 10 according to an embodiment of the present invention has an advantage of being easy to assemble.

FIG. 6 is a structural diagram of a fuel cell stack according to the first embodiment of the present invention constituted by the members shown in FIGS. 2 to 5. 1 is an exploded view of a first part of a fuel cell stack according to a first embodiment of the present invention. It is a three-dimensional exploded view of the second part of the fuel cell stack according to the first embodiment of the present invention. It is a three-dimensional exploded view of a fuel cell stack third part according to the first embodiment of the present invention. FIG. 6 is a three-dimensional exploded view of a fourth portion of the fuel cell stack according to the first embodiment of the present invention. 1 is a three-dimensional combination diagram of a fuel cell stack according to a first embodiment of the present invention. In the fuel cell stack according to the first embodiment of the present invention, FIG. In the fuel cell stack according to the first embodiment of the present invention, it is a three-dimensional schematic diagram showing a state in which the cover and the fan of the second embodiment are combined. FIG. 14 is a structural diagram of a fuel cell stack according to a second embodiment of the present invention configured by the members shown in FIGS. 10 to 13. It is a three-dimensional exploded view of a fuel cell stack first portion according to a second embodiment of the present invention. It is a three-dimensional exploded view of the second part of the fuel cell stack according to the second embodiment of the present invention. It is a three-dimensional exploded view of a fuel cell stack third part according to the second embodiment of the present invention. It is a three-dimensional exploded view of the fourth part of the fuel cell stack according to the second embodiment of the present invention. It is a three-dimensional combination diagram of a fuel cell stack according to the second embodiment of the present invention. In the fuel cell stack by 2nd embodiment of this invention, it is a three-dimensional schematic diagram which shows the state which combines a 1st cover and a 1st fan. In the fuel cell stack by 2nd embodiment of this invention, it is a three-dimensional schematic diagram which shows the state which combines a 2nd cover and a 2nd fan.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Fuel cell stack 101A 1st cathode end plate 101B 2nd cathode end plate 1011 Flow path structure 1012 Concave part 1013 Screw hole 1014 Convex lid 1015 Concave hole 1016 Passage 102A 1st fuel cell module 102B 2nd fuel cell module
102C Third fuel cell module
102D Fourth fuel cell module 102E Fifth fuel cell module 102F Sixth fuel cell module 1021 Cathode current collector
10211 hole
10212 Screw hole 10213 Hole 1022 Membrane electrode set 1023 Adhesive bonding film 10231 Accommodating installation space 10232 Screw hole 10233 Hole 1024 Positioning plate 10241 Accommodating installation space 10242 Screw hole 10243 Hole 1025 Current collector plate 10251 Plate body
103A First anode flow path plate 103B Second anode flow path plate 1031 Flow path structure 1032 Screw hole 1033 hole
104 First washer 1041 Screw hole 1042 Hole 105 Cathode flow path plate 1051 Anode fuel inlet 1052 Anode fuel outlet 1053 Flow path structure 1054 Screw hole 1055 Hole 1056 Passage 106 Second washer 1061 Screw hole 107A First cathode flow path plate 107B Second cathode flow path plate 1071 Flow path structure
1072 Screw hole 1073 Hole 1074 Passage 108 Bolt 109 Anode flow path plate 1091 Fuel inlet 1092 Fuel flow outlet 1093 Flow path structure 1094 Screw hole 1095 Hole 110 Pressure plate 1101 Screw hole 20 First cover 21 Fitting portion 30 First fan 40 First Two covers 41 Fitting part 50 Second fan

Claims (19)

First cathode end plate, first fuel cell module, first anode flow path plate, second fuel cell module, cathode flow path plate, third fuel cell module, second anode flow path plate, fourth fuel cell module, first Equipped with two cathode end plates, stacked from top to bottom,
The first fuel cell module, the second fuel cell module, the third fuel cell module, and the fourth fuel cell module have a homogenous structure, and each fuel cell module has at least one cathode current collector plate. Equipped with the above membrane electrode set, adhesive bonding film, localization plate, current collector plate,
The adhesive bonding film includes at least one accommodation installation space, and each of the accommodation installation spaces accommodates and installs each of the membrane electrode sets,
The stereotaxic plate includes at least one accommodation installation space,
The at least one current collecting plate is installed in each housing installation space of the localization plate,
The adhesive bonding film integrally bonds the cathode current collector plate and the localization plate, and the cathode current collector plate and the localization plate sandwich each membrane electrode set therebetween,
The first cathode end plate and the second cathode end plate have a homologous structure,
The fuel cell stack, wherein the first anode flow path plate and the second anode flow path plate have a homologous structure.   2. The cathode current collector plates of the first fuel cell module, the second fuel cell module, the third fuel cell module, and the fourth fuel cell module each have a plurality of through holes. The fuel cell stack described in 1.   The cathode flow path plate, the first anode flow path plate, and the second anode flow path plate have a plurality of corresponding through holes and a plurality of screw holes, respectively, and the first cathode end plate and the first anode flow path plate The fuel cell stack according to claim 1, wherein each of the two cathode end plates is provided with a plurality of convex lids and a plurality of screw holes.   2. The fuel cell stack according to claim 1, wherein the cathode current collector plate, the adhesive bonding film, and the localization plate are provided with a plurality of corresponding through holes and a plurality of screw holes, respectively.   2. The fuel cell stack according to claim 1, wherein a plurality of recesses are provided on outer surfaces of the first cathode end plate and the second cathode end plate, respectively.   The fuel cell stack according to claim 1, further comprising a plurality of first washers and a plurality of second washers.   The fuel cell stack according to claim 6, wherein the material of the first washer and the second washer is rubber.   The fuel cell stack according to claim 1, further comprising a plurality of pressure plates.   The fuel cell stack according to claim 8, wherein the material of the pressure plate is a hard metal.   The fuel cell stack according to claim 1, wherein the material of the adhesive bonding film is polypropylene.   The substrate of the first cathode end plate, the second cathode end plate, the orientation plate, the cathode flow path plate, the first anode flow path plate, the second anode flow path plate is a chemically resistant non-conductor engineering plastic A type selected from a substrate, a plastic carbon substrate, an FR4 substrate, an FR5 substrate, an epoxy resin substrate, a glass fiber substrate, a ceramic substrate, a polymer plastic substrate, a composite material substrate, a printed circuit substrate, and the like. 2. The fuel cell stack according to 1.   The fuel cell stack according to claim 1, wherein the current collector plate is provided with a plate body that extends and extends outward.   The fuel cell stack according to claim 1, further comprising a first cover, to which the first fan is coupled.   The fuel cell stack according to claim 1, further comprising a second cover, to which the second fan is coupled.   The fuel cell stack according to claim 1, wherein the cathode flow path plate is provided with an anode fuel inlet and an anode fuel outlet. First cathode end plate, first fuel cell module, first anode flow path plate, second fuel cell module, first cathode flow path plate, third fuel cell module, anode flow path plate, fourth fuel cell module, first A two-cathode flow path plate, a fifth fuel cell module, a second anode flow path plate, a sixth fuel cell module, and a second cathode end plate are configured to be stacked from top to bottom,
The first fuel cell module, the second fuel cell module, the third fuel cell module, the fourth fuel cell module, the fifth fuel cell module, the sixth fuel cell module, and Each of the fuel cell modules includes a cathode current collector plate, at least one membrane electrode set, an adhesive bonding film, a localization plate, and at least one current collecting plate, and the adhesive bonding film has at least one accommodation installation space. In addition, each accommodation installation space accommodates and installs each of the membrane electrode sets,
The stereotaxic plate includes at least one accommodation installation space,
The at least one current collecting plate is installed in each housing installation space of the localization plate,
The adhesive bonding film integrally bonds the cathode current collector plate and the localization plate, and the cathode current collector plate and the localization plate sandwich each membrane electrode set therebetween,
The first cathode end plate and the second cathode end plate have a homologous structure,
The first anode flow path plate and the second anode flow path plate have a homologous structure,
The fuel cell stack, wherein the first cathode flow path plate and the second cathode flow path plate have a homologous structure.   The fuel cell stack according to claim 16, further comprising a first cover, to which the first fan is coupled.   The fuel cell stack according to claim 16, further comprising a second cover for coupling the second fan.   The fuel cell stack according to claim 16, wherein the anode flow path plate is provided with an anode fuel inlet and an anode fuel outlet.

Images