JP6772600B2 - Positioning member, fuel cell assembly device and fuel cell assembly method - Google Patents

Description

The present invention relates to a positioning member, a fuel cell assembling device, and a fuel cell assembling method.

The fuel cell is configured by arranging a plurality of constituent members including a membrane electrode assembly (MEA: Membrane Electrode Assembly) and a separator. In a fuel cell, it is necessary to position components and single cells with high accuracy in order to obtain desired battery characteristics.

For example, Patent Document 1 below describes a fuel cell manufacturing apparatus that secures positioning accuracy of components in a direction intersecting the arrangement direction by laminating the positioning members while contacting them with positioning portions of the fuel cell components. The manufacturing method is described. After stacking the components, the positioning member is removed from the manifold hole.

JP-A-2015-32435

However, the constituent members of the single cell are thin, and when the positioning member comes into contact with the inner peripheral edge of the manifold hole when the positioning member is removed from the manifold hole, the constituent member may be rubbed and deformed.

Therefore, an object of the present invention is to provide a positioning member, a fuel cell assembling device, and a fuel cell assembling method that suppress the deformation of the constituent member after positioning the constituent member with high accuracy.

The positioning member of the component according to the present invention that achieves the above object has an open portion that opens a contact state with the component , includes a rotation shaft, and rotates around the rotation shaft to form the configuration. It is configured so that it can be switched between a state in which it is positioned in contact with a member and a state in which the contact state with the component member is open. The open portion is formed from a straight line portion formed by a straight line obtained by cutting a part of the arc surface from the arc portion, and the turning point where the arc portion and the straight portion intersect is described. The line connecting along the axial direction of the rotating shaft has a twist angle with respect to the rotating shaft, and the fuel cell assembly device has a control unit that controls the operation of the positioning member and is open. The position of the portion is controlled to release the contact state with the constituent member.

Further, the method for assembling a fuel cell according to the present invention that achieves the above object is to bring a positioning member into contact with a part of a component in the fuel cell to position the component, and then adjust the position of the open portion. When the contact state between the positioning member and the constituent member is released, the positioning member is separated from the constituent member, and a plurality of the constituent members are arranged to form a laminated body, the constituent member is used by the positioning member. of each positioning in a direction intersecting the array direction, sequentially opened along the contact state between the structural member and the positioning member in the arrangement direction of the laminate.

According to the positioning member, the fuel cell assembling device, and the fuel cell assembling method according to the present invention, it is possible to suppress the deformation of the constituent member after positioning the constituent member with high accuracy.

It is a perspective view which shows the fuel cell which concerns on embodiment of this invention. It is an exploded perspective view which shows each component of the fuel cell which concerns on embodiment of this invention. It is sectional drawing for demonstrating the single cell provided in the fuel cell which concerns on embodiment of this invention. It is a perspective view which shows the whole structure of the fuel cell assembly apparatus which concerns on 1st Embodiment simply. It is a perspective view which shows the positioning member which concerns on 1st Embodiment. It is a top view for demonstrating the state which the component member of the fuel cell is positioned by the positioning member which concerns on 1st Embodiment. It is sectional drawing for demonstrating the state in which the contact state between the positioning member and the component member of a fuel cell which concerns on 1st Embodiment is opened. It is a flowchart which shows each process of the assembly method of the fuel cell which concerns on embodiment of this invention. It is a perspective view for demonstrating the method of assembling the fuel cell which concerns on 1st Embodiment. It is a perspective view for demonstrating the method of assembling the fuel cell which concerns on 1st Embodiment. It is a perspective view for demonstrating the method of assembling the fuel cell which concerns on 1st Embodiment. It is a perspective view for demonstrating the method of assembling the fuel cell which concerns on 1st Embodiment. It is a perspective view for demonstrating the method of assembling the fuel cell which concerns on 1st Embodiment. It is a perspective view for demonstrating the method of assembling the fuel cell which concerns on 1st Embodiment. It is a perspective view for demonstrating the method of assembling the fuel cell which concerns on 1st Embodiment. It is a perspective view for demonstrating the method of assembling the fuel cell which concerns on 1st Embodiment. It is a conceptual diagram for demonstrating the assembly method of the fuel cell which concerns on 1st Embodiment. It is a timing chart for demonstrating the operation of the positioning member which concerns on 1st Embodiment. It is a perspective view which shows the positioning member which concerns on 2nd Embodiment. It is sectional drawing for demonstrating the state in which the component member of a fuel cell is positioned by the positioning member which concerns on 2nd Embodiment. It is sectional drawing for demonstrating the procedure which releases the contact state between the positioning member and the component member of a fuel cell which concerns on 2nd Embodiment. It is sectional drawing for demonstrating the procedure which releases the contact state between the positioning member and the component member of a fuel cell which concerns on 2nd Embodiment. It is sectional drawing for demonstrating the procedure which releases the contact state between the positioning member and the component member of a fuel cell which concerns on 2nd Embodiment. It is sectional drawing for demonstrating the procedure which releases the contact state between the positioning member and the component member of a fuel cell which concerns on 2nd Embodiment. It is sectional drawing for demonstrating the procedure which releases the contact state between the positioning member and the component member of a fuel cell which concerns on 2nd Embodiment. It is sectional drawing for demonstrating the state in which the contact state between the positioning member and the component member of a fuel cell which concerns on 2nd Embodiment is opened. It is a conceptual diagram for demonstrating the assembly method of the fuel cell which concerns on 2nd Embodiment. It is a timing chart for demonstrating the operation of the positioning member which concerns on 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. The following description does not limit the technical scope and meaning of terms described in the claims. In addition, the dimensional ratios in the drawings are exaggerated for convenience of explanation and may differ from the actual ratios.

<First Embodiment>
The fuel cell 1, the assembly device 100 of the fuel cell 1, and the manufacturing method according to the first embodiment will be described with reference to FIGS. 1 to 10.

First, the fuel cell 1 will be described.

The fuel cell 1 shown in FIG. 1 is made of, for example, a polymer electrolyte fuel cell, and is configured to be usable as a power source. The polymer electrolyte fuel cell (PEFC) can be miniaturized, has a high density, and has a high output. For example, it is used as a power source for driving a moving body such as a vehicle having a limited mounting space. can do. In particular, it is suitable for use in automobiles where system start / stop and output fluctuations occur frequently. When used in an automobile, for example, it can be mounted under a seat in the center of the vehicle body, in the lower part of the rear trunk room, in the engine room in front of the vehicle, or the like. From the viewpoint of widening the interior space and trunk room, it is preferable to mount it under the seat.

The fuel cell 1 has a stack portion 10, a current collector plate 53, a spacer 55, and an end plate 56 as constituent members 1a (see FIG. 2), and a fastening plate 51 and a reinforcing plate as a casing surrounding the stack portion 10. It has 52 (see FIG. 1). The fuel cell 1 further has a manifold hole 60 through which a fluid such as a fuel gas, a cooling fluid, or an oxidant gas passes. Hereinafter, as shown in FIG. 2, in the present specification, a stack portion 10, a current collector plate 53, a spacer 55, and an end plate 56 arranged in the arrangement direction Z are referred to as a laminate 2.

As shown in FIG. 2, the stack portion 10 is configured by arranging a plurality of single cells 20 having a first separator 31, a second separator 32, and a membrane electrode assembly 40 in the arrangement direction Z. There is. In the present embodiment, a module 21 in which a plurality of single cells 20 are stacked is formed (see FIG. 2), and a stack portion 10 is formed by further stacking a plurality of modules 21.

As shown in FIG. 1, the fastening plate 51 is arranged on both sides of one opposite side surface of the stack portion 10. The reinforcing plate 52 is arranged on both sides of the other facing side surface of the stack portion 10. The side surface of the stack portion 10 means a surface of the single cell 20 along the arrangement direction Z.

The current collector plate 53 is composed of a conductive member having gas impermeable properties such as dense carbon and a copper plate. The current collector plate 53 is provided with an output terminal 53g for outputting the electromotive force generated by the stack portion 10. The output terminals 53g are arranged on both ends of the stack portion 10 in the arrangement direction Z of the single cell 20.

The current collector plate 53 has a rectangular shape, and has a through hole corresponding to a fuel gas supply port 53a, a cooling fluid supply port 53b, and an oxidant gas supply port 53c at one end in the longitudinal direction thereof. Similarly, the current collector plate 53 has a through hole corresponding to the fuel gas discharge port 53d, the cooling fluid discharge port 53e, and the oxidant gas discharge port 53f at the other end in the longitudinal direction thereof.

The spacer 55 is arranged between the current collector plate 53 arranged on the back side (back side in FIG. 1) of the stack portion 10 and the end plate 56. As shown in FIG. 2, the spacer 55 has a rectangular shape, and has a through hole corresponding to a fuel gas supply port 55a, a cooling fluid supply port 55b, and an oxidant gas supply port 55c at one end in the longitudinal direction thereof. ing. Similarly, the end plate 55 has through holes corresponding to the fuel gas discharge port 55d, the cooling fluid discharge port 55e, and the oxidant gas discharge port 55f at the other end in the longitudinal direction thereof.

The end plate 56 can be made of a rigid material, such as a metal material such as steel. The end plate 56 has a rectangular shape, and has a through hole corresponding to a fuel gas supply port 56a, a cooling fluid supply port 56b, and an oxidant gas supply port 56c at one end in the longitudinal direction thereof. Similarly, the end plate 56 has through holes corresponding to the fuel gas discharge port 56d, the cooling fluid discharge port 56e, and the oxidant gas discharge port 56f at the other end in the longitudinal direction thereof.

The current collector plate 53, the spacer 55, and the end plate 56 are arranged in the order of the current collector plate 53, the end plate 56, or the current collector plate 53, the spacer 55, and the end plate 56 from the inside of the stack portion 10 toward both ends. ing.

The end plate 56, the fastening plate 51, and the reinforcing plate 52 are fastened with bolts or the like. The fastening is not limited to bolt fastening, and other fastening can be applied.

As shown in FIG. 3, the membrane electrode assembly 40 included in the single cell 20 includes a polymer electrolyte membrane 41, an anode catalyst layer 42a that functions as an anode electrode, and a cathode catalyst layer 42b that functions as a cathode electrode. It has gas diffusion layers 43a and 43b. As shown in FIG. 2, the membrane electrode assembly 40 has a rectangular shape, and at one end in the longitudinal direction thereof, a through hole corresponding to a fuel gas supply port 40a, a cooling fluid supply port 40b, and an oxidant gas supply port 40c. have. Similarly, the membrane electrode assembly 40 has a through hole corresponding to a fuel gas discharge port 40d, a cooling fluid discharge port 40e, and an oxidant gas discharge port 40f at the other end in the longitudinal direction thereof.

The gas diffusion layer 43a is arranged between the second separator 32 and the anode catalyst layer 42a. The gas diffusion layer 43a disperses the fuel gas supplied to the anode side and supplies the fuel gas to the anode catalyst layer 42a. On the other hand, the gas diffusion layer 43b is arranged between the first separator 31 and the cathode catalyst layer 42b. The gas diffusion layer 43b disperses the oxidant gas supplied to the cathode side and supplies the oxidant gas to the cathode catalyst layer 42b.

The anode catalyst layer 42a contains a catalyst component, a conductive catalyst carrier supporting the catalyst component, and a polymer electrolyte. The anode catalyst layer 42a is arranged on one side of the polymer electrolyte membrane 41. The cathode catalyst layer 42b contains a catalyst component, a conductive catalyst carrier supporting the catalyst component, and a polymer electrolyte. The cathode catalyst layer 42b is arranged on the other side of the polymer electrolyte membrane 41.

The polymer electrolyte membrane 41 has a function of selectively permeating protons generated in the anode catalyst layer 42a into the cathode catalyst layer 42b, and a mixture of a fuel gas supplied to the anode side and an oxidant gas supplied to the cathode side. It has a function as a partition to prevent it from being prevented.

The first separator 31 and the second separator 32 have a function of electrically connecting the single cells 20 in series and a function of a partition wall for blocking the fuel gas, the oxidant gas, and the refrigerant from each other. The outer shape of each of the separators 31 and 32 is substantially the same as that of the membrane electrode assembly 40. Further, each of the separators 31 and 32 can be made of a conductive metal that has been pressed to form an uneven shape.

As the conductive metal, a stainless steel plate that is easy to perform complicated machining and has good conductivity can be used. If necessary, it is also possible to apply a corrosion-resistant coating to the stainless steel plate. However, the first separator 31 and the second separator 32 can also be made of a metal material other than the stainless steel plate, for example, an aluminum plate or a clad material.

The first separator 31 is configured as a cathode side separator arranged on the cathode side of the membrane electrode assembly 40. The first separator 31 is arranged so as to face the cathode catalyst layer 42b.

As shown in FIG. 3, the central portion 31 g of the first separator 31 has a groove portion 71 in contact with one of the regions contributing to power generation of the membrane electrode assembly 40. The groove 71 has an uneven shape for forming a flow path 33 located between the membrane electrode assembly 40 and the first separator 31. The flow path 33 is used to supply the oxidant gas to the cathode catalyst layer 42b.

The first separator 31 has a rectangular shape, and has a through hole corresponding to a fuel gas supply port 31a, a cooling fluid supply port 31b, and an oxidant gas supply port 31c at one end in the longitudinal direction thereof. Similarly, the first separator 31 has a through hole corresponding to the fuel gas discharge port 31d, the cooling fluid discharge port 31e, and the oxidant gas discharge port 31f at the other end in the longitudinal direction thereof.

The second separator 32 constitutes an anode-side separator arranged on the cathode side of the membrane electrode assembly 40. The second separator 32 is arranged so as to face the cathode catalyst layer 42b.

As shown in FIG. 3, the central portion 32g of the second separator 32 has a groove portion 72 in contact with the other side of the region contributing to power generation of the membrane electrode assembly 40. The groove portion 72 has an uneven shape for forming a flow path 34 located between the membrane electrode assembly 40 and the second separator 32. The flow path 34 is used to supply the fuel gas to the anode catalyst layer 42a.

The second separator 32 has a rectangular shape, and has a through hole corresponding to a fuel gas supply port 32a, a cooling fluid supply port 32b, and an oxidant gas supply port 32c at one end in the longitudinal direction thereof. Similarly, the second separator 32 has a through hole corresponding to the fuel gas discharge port 32d, the cooling fluid discharge port 32e, and the oxidant gas discharge port 32f at the other end in the longitudinal direction thereof.

A flow path 35 for a cooling fluid is formed between the separators 31 and 32.

Next, the materials of the polymer electrolyte membrane 41 and the catalyst layers 42a and 42b will be described. The materials shown below are merely examples, and the materials used are not limited to these materials.

The polymer electrolyte membrane 41 is a fluorine-based polymer electrolyte membrane composed of a perfluorocarbon sulfonic acid-based polymer, a hydrocarbon-based resin film having a sulfonic acid group, and a porous material impregnated with an electrolyte component such as phosphoric acid or an ionic liquid. It is possible to apply a shaped membrane. Perfluorocarbon sulfonic acid-based polymers include, for example, Nafion (registered trademark, manufactured by DuPont Co., Ltd.), Aciplex (registered trademark, manufactured by Asahi Kasei Co., Ltd.), Flemion (registered trademark, manufactured by Asahi Glass Co., Ltd.), Gore select series (registered trademark). , Nippon Gore Co., Ltd.), etc. The porous membrane is formed from, for example, polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF).

The thickness of the polymer electrolyte membrane 41 is not particularly limited, but is preferably 5 μm to 300 μm, and more preferably 10 to 200 μm from the viewpoint of strength, durability, and output characteristics.

The catalyst component used in the anode catalyst layer 42a is not particularly limited as long as it has a catalytic action on the oxidation reaction of hydrogen. The catalyst component used in the cathode catalyst layer 42b is not particularly limited as long as it has a catalytic action on the reduction reaction of oxygen.

Specific catalyst components are from metals such as platinum, ruthenium, iridium, rhodium, palladium, osmium, tungsten, lead, iron, chromium, cobalt, nickel, manganese, vanadium, molybdenum, gallium, aluminum, and alloys thereof. Be selected. In order to improve catalytic activity, toxicity resistance to carbon monoxide and the like, heat resistance and the like, those containing at least platinum are preferable. The catalyst components applied to the cathode catalyst layer and the anode catalyst layer do not have to be the same and can be appropriately selected. It is also possible to apply a catalyst containing no precious metal.

The conductive carrier of the catalyst used in each of the catalyst layers 42a and 42b is particularly limited as long as it has a specific surface area for supporting the catalyst component in a desired dispersed state and sufficient electron conductivity as a current collector. However, it is preferable that the main component is carbon particles. The carbon particles are composed of, for example, carbon black, activated carbon, coke, natural graphite, and artificial graphite.

The polymer electrolyte used for each of the catalyst layers 42a and 42b is not particularly limited as long as it is a material having at least high proton conductivity, and for example, a fluorine-based electrolyte containing a fluorine atom in all or part of the polymer skeleton, or A hydrocarbon-based electrolyte that does not contain a fluorine atom in the polymer skeleton can be applied. The polymer electrolyte used in each of the catalyst layers 42a and 42b may be the same as or different from the polymer electrolyte used in the polymer electrolyte membrane 41, but the polymer electrolytes 42a and 42b with respect to the polymer electrolyte membrane 41 may be used. From the viewpoint of improving the adhesion of the above, it is preferable that they are the same.

The manifold hole 60 is a supply for fuel gas, cooling fluid, and oxidant gas provided in each of the first separator 31, the membrane electrode assembly 40, the second separator 32, the current collector plate 53, the spacer 55, and the end plate 56. It consists of a mouth and a discharge port. The manifold holes 60 extend along the arrangement direction Z of each of the constituent members 1a.

Specifically, the first fuel gas manifold hole 61 is composed of the fuel gas supply ports 31a, 40a, 32a, 53a, 55a, 56a of the above-mentioned constituent members 1a. The first cooling fluid manifold hole 62 is composed of cooling fluid supply ports 31b, 40b, 32b, 53b, 55b, 56b among the above-mentioned constituent members 1a. The first oxidant gas manifold hole 63 is composed of the oxidant gas supply ports 31c, 40c, 32c, 53c, 55c, 56c among the above-mentioned constituent members 1a. The second fuel gas manifold hole 64 is composed of the fuel gas discharge ports 31d, 40d, 32d, 53d, 55d, and 56d among the above-mentioned constituent members 1a. The second cooling fluid manifold hole 65 is composed of cooling fluid discharge ports 31e, 40e, 32e, 53e, 55e, 56e among the above-mentioned constituent members 1a. The first oxidant gas manifold hole 66 is composed of the oxidant gas discharge ports 31f, 40f, 32f, 53f, 55f, and 56f among the above-mentioned constituent members 1a.

Next, the assembly device 100 of the fuel cell 1 according to the present embodiment will be described with reference to FIGS. 4 to 6B, 8B, and 8E. The assembly device 100 of the fuel cell 1 is a device for assembling each component 1a of the fuel cell 1. In the assembling operation, the assembling device 100 of the fuel cell 1 includes the constituent members 1a including the first separator 31, the second separator 32, and the membrane electrode assembly 40 in the XY directions intersecting the arrangement direction Z. Arrange while positioning the position where 1a is arranged.

The assembly device 100 of the fuel cell 1 is outlined with reference to FIGS. 4, 8B and 8E, a positioning member 110 for positioning a position for arranging each component 1a, and a transport unit 120 for transporting each component 1a. (See FIG. 8B), the mounting table 130 on which each component 1a is placed, the support portion 140 for transporting the positioning member 110 in the vertical direction (Z direction), and the positioning member 110 are rotated around the rotation axis O. The drive unit 150, the pressurizing unit 160 (see FIG. 8E) that applies a pressing force to the arranged constituent members 1a, and the transport unit 120, the support unit 140, the support unit 140, the drive unit 150, and the pressurizing unit 160. It has a control unit 170 that controls the operation.

The assembly device 100 has two positioning members 110 that are inserted into the first cooling fluid manifold hole 62 and the second cooling fluid manifold hole 65 of each component 1a. The two positioning members 110 each have the same shape and the same configuration. Hereinafter, the first cooling fluid manifold hole 62 and the second cooling fluid manifold hole 65 used for positioning are collectively referred to as a manifold hole 60a (see FIG. 4).

As shown in FIG. 5, the positioning member 110 has a long shape, and is configured to be rotatable about the rotation axis O with the central axis as the rotation axis O. As shown in FIG. 6A, the positioning member 110 contacts a part of the inner peripheral edge of the manifold hole 60a, and positions the constituent members 1a in the XY directions where the constituent members 1a intersect the arrangement direction Z. Position. The positioning member 110 shown in FIGS. 6A and 6B is a cross-sectional view taken along the line 6A-6A of FIG.

The positioning member 110 has an arc portion 110a having an arc surface coaxial with the rotation axis O on the outer peripheral surface and a straight line portion 110b formed by cutting a part of the arc surface from the arc portion in a cross section orthogonal to the rotation axis O. have.

The arc portion 110a contacts the inner peripheral edge of the manifold hole 60a to position each component 1a.

The straight portion 110b constitutes an open portion 111 that releases the contact state with each constituent member 1a. Here, it is assumed that the open portion 111 does not include the inflection points P1, P2, and P3 (see FIG. 6A) at which the arc portion 110a and the straight portion 110b intersect in the straight portion 110b.

As shown in FIG. 6A, the positioning member 110 is positioned by bringing a part of the arc portion 110a into contact with the component member 1a at the positioning points A, B, and C with the inner peripheral edge of the manifold hole 60a of the component member 1a. In the present embodiment, inflection points P1 and P2 where the arc portion 110a and the straight portion 110b intersect from the positioning points A, B, and C where the arc portion 110a and the inner peripheral edge of the manifold hole 60a contact in the positioned state. , The angles β around the rotation axis O up to P3 are configured to be equal to each other. However, the angle β is not particularly limited as long as it is possible to position the constituent member 1a (see FIG. 6A) and open the contact state (see FIG. 6B) as described later, and the angles β are different from each other. It may be a value.

As shown in FIG. 6A, at positioning points A, B, and C with the inner peripheral edge of the manifold hole 60a, a part of the arc portion 110a is brought into contact with the constituent member 1a for positioning, and then positioning is centered on the rotation axis O. When the member 110 is rotated in the first direction D1, the straight portion 110b is located at a position facing the positioning points A, B, and C that were in contact with the arc portion 110a. As a result, as shown in FIG. 6B, the opening portion 111 releases the contact state between the positioning member 110 and each constituent member 1a.

With reference to FIG. 5 again, the positioning member 110 follows the inflection points P1, P2, and P3 (see FIGS. 6A and 6B) where the arc portion 110a and the straight portion 110b intersect along the axial direction of the rotation axis O. The line segment S1 connected together has an inflection point α with respect to the rotation axis O.

The positioning member 110 is positioned in a state where the arc portion 110a is in contact with each component 1a and is positioned by rotating around the rotation axis O, and the straight line portion 110b is separated from each component 1a and is separated from each component 1a. It is configured to be able to switch between the open state and the open state.

As shown in FIG. 8B, the transport unit 120 is composed of a known articulated robot arm capable of transporting while adjusting the transport target in a desired direction and posture. The transport unit 120 transports each component 1a from a parts tray (not shown) on which each component 1a is loaded to a mounting table 130 and mounts the component 1a.

As shown in FIG. 4, the support portion 140 conveys the chuck 141 provided so as to hold the positioning member 110, the support plate 142 to which the chuck 141 is attached, and the support plate 142 in the vertical direction (Z direction). It has a drive source 143. The drive source 143 is, for example, a hydraulic (hydraulic and hydraulic) type cylinder, but is not particularly limited, and a mechanical type can also be applied.

The drive unit 150 has a spline gear configured to be connectable to the rotation shaft O of the positioning member 110, and a motor for driving the spline gear. The drive unit 150 can drive the spline gear by a motor to rotate the positioning member 110.

As shown in FIG. 8E, the pressurizing unit 160 has a flat plate-shaped member 161 and a pressurizing source 162 for driving the plate-shaped member 161. The plate-shaped member 161 has a contact surface 161a that comes into contact with the laminated body 2, and the contact surface 161a is used for surface contact with the laminated body 2 to apply a pressing force. The plate-shaped member 161 can uniformly apply a pressing force to the XY surfaces of the constituent member 1a by making surface contact with the laminated body 2. The pressurizing source 162 is used to reciprocate the plate-shaped member 161 along the arrangement direction Z of the laminated body 2. The pressurizing source 162 is, for example, a hydraulic (hydraulic and hydraulic) type cylinder, but is not particularly limited, and a mechanical type can also be applied.

The control unit 170 controls the operation of each unit of the assembly device 100 of the fuel cell 1. Specifically, the control unit 170 includes a storage unit composed of a ROM and a RAM, a calculation unit mainly composed of a CPU, and an input / output unit for transmitting and receiving various data and control commands. The input / output unit is electrically connected to the transport unit 120, the support unit 140, the drive unit 150, the pressurizing unit 160, and the like. The storage unit stores data such as the position of the positioning member 110 and the position on which each constituent member 1a is placed. The calculation unit calculates the transport position of the component member 1a, the rotation angle of the positioning member 110, the rotation speed, the pressing force applied to the laminated body 2, and the like based on the data read from the storage unit and the data received from the input / output unit. To do. The control signal based on the calculated data is transmitted to the transport unit 120, the support unit 140, the drive unit 150, the pressurizing unit 160, and the like via the input / output unit. In this way, the control unit 170 controls the operation of each part of the assembly device 100 of the fuel cell 1.

Next, a method of assembling the fuel cell 1 according to the present embodiment will be described with reference to FIGS. 7 to 10.

As shown in FIG. 7, the method of assembling the fuel cell 1 is generally a positioning step (step) in which the positioning member 110 is brought into contact with a part of the constituent members 1a of the fuel cell 1 to position the position where the constituent members 1a are arranged. S10), a pressurizing step (step S20) of pressurizing the stack portion 10 in the arrangement direction Z of the constituent member 1a, and an opening step (step S30) of releasing the contact state between the positioning member 110 and the constituent member 1a. It has a drawing step (step S40) of separating the positioning member 110 from the member 1a. Hereinafter, each step will be described in detail.

First, as shown in FIG. 8A, two positioning members 110 are installed on the mounting table 130. At this time, one end of the positioning member 110 is connected to the drive unit 150 arranged on the mounting table 130. Next, as shown in FIG. 8B, the current collector plate 53 and the end plate 56 are placed on the mounting table 130 while the positioning member 110 is inserted into the manifold holes 60a of the current collector plate 53 and the end plate 56 by the transport unit 120. ..

Further, a module 21 in which a plurality of single cells 20 are stacked and fixed is formed in advance. For fixing the constituent member 1a included in the module 21, joining with an adhesive or the like, mechanical fastening, or the like can be used.

Next, in the positioning step (step S10), as shown in FIG. 8C, the modules 21 are stacked and positioned on the mounting table 130 while inserting the positioning member 110 into the manifold holes 60a of each module 21. When the positioning member 110 is inserted into the manifold hole 60a of each module 21, as shown in FIG. 6B, the linear portion 110b of the positioning member 110 is arranged so as to face the inner peripheral edge of the manifold hole 60a of each module 21. Has been done. As a result, the positioning member 110 can be smoothly inserted into the manifold hole 60a without the positioning member 110 coming into contact with the inner peripheral edge of the manifold hole 60a. Next, as shown in FIG. 6A, the positioning member 110 is rotated and positioned around the rotation axis O so that the inner peripheral edge of the module 21 and the positioning member 110 come into contact with each other at the positioning points A, B, and C. To do.

Hereinafter, an example of a procedure for positioning each module 21 will be described with reference to FIGS. 8C, 8D, 9 and 10. In this embodiment, N modules 21 are laminated to form the stack portion 10.

First, as shown in FIG. 8C, after mounting one module 21 (“MOD1” shown in FIG. 9) on the mounting table 130, the positioning member 110 is placed in the first direction about the rotation axis O by the rotation angle θ1. Rotate to D1. Here, as shown in FIG. 10, the two positioning members 110 (“positioning member 1” and “positioning member 2” shown in FIG. 10) are controlled to perform the same operation at the same timing.

The rotation angle θ1 is set in the one module 21 as shown in FIG. 6A from the position where the inner peripheral edge of the one module 21 shown in FIG. 6B and the positioning member 110 are separated from each other (the position where the contact state is released). The angle is adjusted so that the peripheral edge and the positioning member 110 come into contact with each other at the positioning points A, B, and C. The rotation angle θ1 can be set to an appropriate value in consideration of the twist angle α, the number of modules 21 to be arranged, the number of positioning points, the size of the positioning member 110, and the like. By rotating the positioning member 110 in the first direction D1 about the rotation axis O by the rotation angle θ1, one module 21 is positioned. In the positioned state, each module 21 receives a pressing force (arrow in FIG. 6A) from the positioning member 110 at the positioning points A, B, and C.

Next, another module 21 (“MOD2”) is further laminated on one module 21 (“MOD1”). At this time, as shown in FIG. 9, one module 21 (“MOD1”) maintains the positioned state. While maintaining this state, the other module 21 (“MOD2”) inserts the positioning member 110 into the manifold hole 60a of the other module 21 in a state where the contact state is opened as shown in FIG. 6B. As a result, the positioning member 110 can be smoothly inserted into the manifold hole 60a without the positioning member 110 coming into contact with the inner peripheral edge of the manifold hole 60a of the other module 21 (“MOD2”).

Next, as in the case of arranging one module 21, after arranging the other module 21 on the one module 21, as shown in FIG. 8D, the positioning member 110 is rotated by the rotation angle θ1. It rotates in the center in the first direction D1.

From the position where the inner peripheral edge of the other module 21 and the positioning member 110 are in contact with each other (see FIG. 6B), the inner peripheral edge of the other module 21 and the positioning member 110 are at the positioning points A, B, and C. It will be in contact position (see FIG. 6A). As a result, one module 21 and the other module 21 are in a positioned state.

Similarly, the work of stacking and positioning the N modules 21 is repeated. As a result, N modules 21 are stacked to form a stack portion 10 positioned on the inner peripheral edge of the manifold hole 60a. After the stack portion 10 is formed, the current collector plate 53, the spacer 55, and the end plate 56 are further laminated to form the laminated body 2.

Next, in the pressurizing step (step S20), as shown in FIG. 8E, the pressurizing portion 160 pressurizes the laminated body 2 in the arrangement direction Z. Specifically, first, the plate-shaped member 161 is arranged so as to face the laminated body 2. Next, the plate-shaped member 161 is driven by the pressurizing source 162, the plate-shaped member 161 is brought close to the laminated body 2, and the end plate located outside the laminated body 2 by the contact surface 161a of the plate-shaped member 161. Pressurize 56. At this time, since the laminated body 2 is pressurized all at once, workability and productivity are good.

When the laminated body 2 is pressed in the arrangement direction Z, the laminated body 2 is slightly tilted, so that a force may be applied to each component 1a in the XY directions. At this time, since the movement of the laminated body 2 is restricted by the positioning member 110, the pressing force received from the positioning member 110 at the positioning points A, B, and C (see FIG. 6A) may be further increased.

If the positioning member 110 is to be pulled out from the manifold hole 60a in a state where the pressing force is large, a problem that the portion in contact with the positioning member 110 is rubbed and the component member 1a is deformed becomes remarkable. There is a possibility that it will end up. If the component 1a is deformed, the contact surface pressure is lowered, which leads to deterioration of the battery characteristics of the fuel cell.

Next, as shown in FIG. 8F, the fastening plate 51 and the reinforcing plate 52 are arranged so as to surround the periphery of the stack portion 10 and fastened to the end plate 56 with bolts or the like.

Next, in the opening step (step S30), as shown in FIG. 8G, the positioning member 110 is rotated in the second direction D2 to position the inner peripheral edges of the manifold holes 60a of all the modules 21 constituting the laminated body 2. The contact state with the member 110 is released. That is, as shown in FIG. 6B, the positioning member 110 is rotated about the rotation shaft O so that the straight portion 110b of the positioning member 110 faces the inner peripheral edge of the manifold hole 60a for all the modules 21.

Specifically, as shown in FIGS. 9 and 10, the positioning member 110 is rotated about the rotation axis O in the second direction D2 by the rotation angle θ2. Here, the second direction D2 is the direction opposite to the first direction D1. Further, the rotation angle θ2 is equal to the angle rotated in the first direction D1 in the positioning step (step S10).

In the present embodiment, the rotation angle θ2 = θ1 × (the number N of the stacked modules 21). By rotating the positioning member 110 in the second direction D2 by the rotation angle θ2 about the rotation axis O, the modules 21 are sequentially rotated from the upper side to the lower side of the laminated body 2 as shown in FIG. 6A. From the state where the inner peripheral edge of the module 21 and the positioning member 110 are in contact with each other at the positioning points A, B, and C and positioned, the state where the inner peripheral edge of each module 21 and the positioning member 110 are in contact with each other is released as shown in FIG. 6B. The module. The order of opening is not limited to the upper side to the lower side of the laminated body 2, and may be sequentially opened from the lower side to the upper side.

Finally, in the pulling step (step S40), the positioning member 110 is moved upward and pulled out from the manifold hole 60a in a state where one end of the positioning member 110 is fixed by the chuck 141 of the support portion. Since it is removed so as to be pulled out from the manifold hole 60a in the upward direction, the positioning member 110 can be removed without buffering the component member 1a of the fuel cell 1 in which the positioning member 110 is positioned. Further, as described above, even when the pressing force is increased in the pressurizing step, the positioning member 110 can be pulled out from the manifold hole 60a without causing a problem that the constituent member 1a is deformed. The two positioning members 110 may be pulled out at the same time as shown in FIG. 10, or may be pulled out one by one. Through the above steps, the fuel cell 1 shown in FIG. 8H is completed.

As described above, the positioning member 110 according to the present embodiment is a positioning member 110 used to contact a part of the constituent member 1a in the fuel cell 1 and position the position where the constituent member 1a is arranged. Therefore, it has an opening portion 111 that releases the contact state with the constituent member 1a.

According to the positioning member 110 configured in this way, the component member 1a can be positioned with high accuracy by arranging the component member 1a with reference to the portion in contact with the component member 1a of the fuel cell 1. Further, since the contact state with the constituent member 1a can be released after positioning the constituent member 1a, contact with the constituent member 1a when the positioning member 110 is removed from the constituent member 1a is suppressed, and the constituent member 1a is prevented from coming into contact with the constituent member 1a. Deformation can be suppressed. Thereby, the battery characteristics of the fuel cell 1 can be improved.

Further, the positioning member 110 is provided with a rotating shaft O, and by rotating around the rotating shaft O, it is possible to switch between a state in which the positioning member 110 is in contact with the constituent member 1a and positioned, and a state in which the contact state with the constituent member 1a is released. It is configured to be possible. As a result, it is possible to relatively easily switch between the state of being positioned in contact with the constituent member 1a and the state of opening the contact state with the constituent member 1a in a short time, so that the manufacturing time can be shortened.

Further, the positioning member 110 has an arc portion 110a having an arc surface coaxial with the rotation axis O on the outer peripheral surface in a cross section orthogonal to the rotation axis O, and the open portion 111 is a part of the arc surface from the arc portion 110a. It is formed from a straight line portion 110b which is a straight line formed by cutting out. As a result, the arc portion 110a can be brought into contact with the constituent member 1a of the fuel cell 1 for positioning, and the positioning member 110 is rotated from the positioned state so that the linear portion 110b faces the constituent member 1a. The positioning member 110 can be separated from the 1a to release the contact state with the constituent member 1a.

Further, in the positioning member 110, the line segment S1 connecting the inflection points P1, P2, and P3 at which the arc portion 110a and the straight portion 110b intersect along the axial direction of the rotation axis O is twisted with respect to the rotation axis O. It has an angle α. As a result, the contact state between each component 1a and the positioning member 110 can be sequentially released in the arrangement direction Z, so that the contact state between all the component members 1a and the positioning member 110 can be released at once as compared with the case where the contact state between all the component members 1a and the positioning member 110 is released at once. In the positioned state, the pressing force applied to the component 1a from the XY directions is gradually released. Therefore, it is possible to reduce the load generated when the laminated body 2 is released from the pressing force received from the positioning member 110, and to prevent the constituent member 1a from inadvertently moving when the laminated body 2 is released.

Further, the positioning member 110 contacts a part of the inner peripheral edge of the manifold hole 60a through which the fluid passes among the constituent members 1a to position the constituent member 1a. By using the manifold hole 60a for positioning, it is not necessary to form a hole or a notch dedicated to positioning in the constituent member 1a, so that the manufacturing cost can be reduced.

According to the assembly device 100 of the fuel cell 1 according to the present embodiment, the positioning member 110 and the control unit 170 for controlling the operation of the positioning member 110 are included, and the control unit 170 controls the operation of the positioning member 110. Then, the positioning member 110 is brought into contact with the constituent member 1a to position the constituent member 1a, and the opening portion 111 releases the contact state between the positioning member 110 and the constituent member 1a.

According to the assembly device 100 of the fuel cell 1 configured in this way, the component member 1a is positioned with high accuracy by arranging the component member 1a with reference to the portion in contact with the component member 1a of the fuel cell 1. Can be done. Further, since the contact state with the constituent member 1a can be released after positioning the constituent member 1a, contact with the constituent member 1a when the positioning member 110 is removed from the constituent member 1a is suppressed, and the constituent member 1a is prevented from coming into contact with the constituent member 1a. Deformation can be suppressed. Thereby, the battery characteristics of the fuel cell 1 can be improved.

The method of assembling the fuel cell 1 according to the present embodiment includes a step of bringing the positioning member into contact with a part of the component member 1a in the fuel cell to position the position where the component member 1a is arranged, and the positioning member and the component member 1a. It has a step of releasing the contact state of the above and a step of separating the positioning member from the constituent member 1a.

According to the method of assembling the fuel cell 1 configured in this way, the component member 1a can be positioned with high accuracy by arranging the component member 1a with reference to the portion in contact with the component member 1a of the fuel cell 1. it can. Further, since the contact state with the constituent member 1a can be released after positioning the constituent member 1a, contact with the constituent member 1a when the positioning member 110 is removed from the constituent member 1a is suppressed, and the constituent member 1a is prevented from coming into contact with the constituent member 1a. Deformation can be suppressed. Thereby, the battery characteristics of the fuel cell 1 can be improved.

Further, when a plurality of the constituent members 1a are arranged to form the laminated body 2, the positioning member 110 positions each of the constituent members 1a in the XY directions intersecting the arrangement direction Z to arrange the constituent members 1a. Therefore, the regions of the constituent members 1a that contribute to power generation can be arranged so as to face each other. Thereby, the output characteristic of the fuel cell 1 can be improved.

Further, since the laminated body 2 is pressurized in the arrangement direction Z of the constituent members 1a in the positioned state before the contact state between the positioning member 110 and the constituent member 1a is released, the constituent member 1a is displaced from the positioned state by the pressurization. Never. As a result, the positioning accuracy can be further improved.

Further, since the contact state between the positioning member 110 and the constituent member 1a is sequentially released along the arrangement direction Z of the laminated body 2, the load generated when the laminated body 2 is released from the pressing force received from the positioning member 110 is reduced. However, it is possible to prevent the constituent member 1a from inadvertently moving when it is opened.

<Second Embodiment>
The positioning member 210, the fuel cell 1 assembling device, and the assembling method according to the second embodiment will be described with reference to FIGS. 11 to 14. The positioning member 210 shown in FIGS. 12A to 12G is a cross-sectional view taken along the line 12A-12A of FIG.

The assembly device for the fuel cell 1 according to the second embodiment differs from the first embodiment described above only in the configuration of the positioning member 210. The parts having the same functions as those of the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 11, the positioning member 210 according to the second embodiment is an open portion that releases the contact state between the arc portions 211a, 212a, 213a and each constituent member 1a, as in the first embodiment described above. It has linear portions 211b, 212b, and 213b that constitute 211. The line segment S2 connecting the inflection points P21, P22, and P23 (see FIG. 12A) where the arc portions 211a, 212a, 213a and the straight portions 211b, 212b, and 213b intersect is along the axial direction of the rotation axis O. It differs from the above-described first embodiment in that it is substantially parallel to the rotation axis O.

The arc portions 211a, 212a, and 213a have a first arc portion 211a, a second arc portion 212a, and a third arc portion 213a, which have different arc lengths, respectively. Further, the straight line portions 211b, 212b, 213b have a first straight line portion 211b, a second straight line portion 212b, and a second straight portion 211b adjacent to the first arc portion 211a, the second arc portion 212a, and the third arc portion 213a, respectively. It has a straight portion 212b of 3. The two positioning members 210 inserted into the first cooling fluid manifold hole 62 and the second cooling fluid manifold hole 65 have the same shape and the same configuration, respectively.

As shown in FIG. 12A, the two positioning members 210 have first arc portions 211a and second at positioning points A1, B1, C1, A2, B2, and C2 with the inner peripheral edge of the manifold hole 60 of the constituent member 1a. A part of the arc portion 212a and the third arc portion 213a of the above is brought into contact with the constituent member 1a for positioning. In the positioned state, the first arc portion 211a and the first straight portion 211b intersect from the first positioning points A1 and A2 where the first arc portion 211a and the inner peripheral edge of the manifold hole 60 come into contact with each other. Let β1 be the angle around the rotation axis O up to the inflection point P21 of 1. Similarly, from the second positioning points B1 and B2 where the second arc portion 212a and the inner peripheral edge of the manifold hole 60 come into contact, the second arc portion 212a and the second straight portion 212b intersect. Let β2 be the angle around the rotation axis O up to the inflection point P22. From the third positioning points C1 and C2 where the third arc portion 213a and the inner peripheral edge of the manifold hole 60 come into contact, the third inflection point where the third arc portion 213a and the third straight portion 213b intersect. Let β3 be the angle around the rotation axis O up to P23. At least two of the angles β1, β2, and β3 are configured to be different from each other. In this embodiment, the angles are configured to increase in the order of β2, β1, and β3.

Next, a method of assembling the fuel cell 1 according to the present embodiment will be described.

Assembling method of the fuel cell 1 includes a positioning step (step S10), a pressurizing step (step S20), an opening step (step S30), and a drawing step (step S40), as in the first embodiment described above. , (See FIG. 7). This embodiment is different from the above-described first embodiment in that it further includes a semi-opening step for temporarily releasing the positioning of each module 21.

Also in this embodiment, similarly to the first embodiment described above, a module 21 in which a plurality of single cells 20 are stacked and fixed is formed in advance, and a plurality of modules 21 are stacked to form a stack portion 10. In the present embodiment, as shown in FIGS. 13 and 14, the positioning step and the semi-opening step are repeatedly performed for each module 21 to form the laminated body 2, and then the pressurizing step and the opening step of the laminated body 2 are carried out. .. Hereinafter, each step will be described in detail.

First, in the positioning step (step S10), the positioning member 210 is inserted into the manifold hole 60 of one module 21 (“MOD1” shown in FIG. 13), and the module 21 is placed on the mounting table 130 for positioning.

As shown in FIG. 12A, the two positioning members 210 are positioned at the center points O1 and O2, respectively, in a state where the two positioning members 210 are inserted and positioned through the first cooling fluid manifold hole 62 and the second cooling fluid manifold hole 65 facing each other. It is arranged point-symmetrically with the midpoint M as the center. That is, the positioning points A1, B1, C1 and the positioning points A2, B2, and C2 are located point-symmetrically with respect to the midpoint M, respectively.

When inserting the positioning member 210 into the manifold hole 60 of each module 21, as shown in FIG. 12G, the straight portion 210b of the positioning member 210 is the positioning point A1, B1, C1, A2 of the manifold hole 60 of each module 21. , B2, and C2 are arranged so as to face each other. Next, as shown in FIG. 12A, the rotation axis O is set so that the inner peripheral edge of the module 21 and the two positioning members 210 are in contact with each other at the positioning points A1, B1, C1, A2, B2, and C2, respectively. The positioning member 210 is positioned at the center by rotating the positioning member 210 about the rotation axis O by the rotation angle θ21 in the first direction D1.

Next, as shown in FIGS. 13 and 14, a semi-opening step is performed on one module 21. In the semi-opening step, the positioning member 210 is rotated by the same procedure as in the opening step to open the contact state between the positioning member 210 and the positioning points A1, B1, C1, A2, B2, and C2 (see FIG. 12G). The procedure examples of the semi-opening step and the opening step will be described in detail later.

Similarly, the positioning step and the quasi-opening step are performed on the other module 21 (“MOD2 to (N-1)” shown in FIG. 13). A positioning step is performed on the module 21 (“MOD (N)” shown in FIG. 13) to be laminated at the end to form the laminated body 2, and then a pressurizing step is performed.

In the pressurizing step (step S20), the laminated body 2 is pressurized in the arrangement direction Z by the pressurizing portion 160 as in the first embodiment described above.

Next, in the opening step (step S30), the positioning members 210 of all the modules 21 constituting the laminated body 2 by rotating the positioning members 210 are in contact with the positioning points A1, B1, C1, A2, B2, and C2. To open.

Hereinafter, an example of the procedure of the semi-opening step and the opening step will be described with reference to FIGS. 12A to 12G and FIG. In this embodiment, as in the first embodiment described above, N modules 21 are laminated to form the stack portion 10.

First, after performing the positioning step on one module 21, the two positioning members 210 are attached to one module 21 at the positioning points A1, B1, C1, A2, B2, and C2, respectively, as shown in FIG. 12A. It is in contact. From this state, as shown in FIG. 12B, one positioning member 210 (on the right side in FIG. 12B) is rotated in the second direction D22 about the rotation axis O by the rotation angle θ22. As a result, the contact between the positioning point B2 and one positioning member 210 is released (hereinafter, referred to as "opening 1").

Next, as shown in FIG. 12C, the other positioning member 210 (left side in FIG. 12C) is rotated in the second direction D22 about the rotation axis O by the rotation angle θ22. As a result, the contact between the positioning point B1 and one positioning member 210 is released (hereinafter, referred to as "opening 2").

Next, as shown in FIG. 12D, when one positioning member 210 (on the right side in FIG. 12D) is further rotated in the second direction D22 about the rotation axis O by the rotation angle θ22, the positioning point A2 and one are positioned. The contact with the member 210 is released (hereinafter, referred to as “opening 3”).

Next, as shown in FIG. 12E, the other positioning member 210 (left side in FIG. 12E) is rotated in the second direction D22 about the rotation axis O by the rotation angle θ22. As a result, the contact between the positioning point A1 and one positioning member 210 is released (hereinafter, referred to as "opening 4").

Next, as shown in FIG. 12F, when one positioning member 210 (on the right side in FIG. 12F) is further rotated in the second direction D22 about the rotation axis O by the rotation angle θ22, the positioning point C2 and one are positioned. The contact with the member 210 is released (hereinafter, referred to as "opening 5").

Next, as shown in FIG. 12G, the other positioning member 210 (left side in FIG. 12G) is rotated in the second direction D22 about the rotation axis O by the rotation angle θ22. As a result, the contact between the positioning point C1 and one positioning member 210 is released (hereinafter, referred to as "opening 6").

By carrying out from opening 1 to opening 6 as described above, the contact states of the two positioning members 210 with the positioning points located point-symmetrically with respect to the midpoint M are alternately opened. As a result, it is possible to reduce the load generated when the module 21 is released from the pressing force received from the positioning member 210 in the positioned state, and to prevent the constituent member 1a from inadvertently moving when the module 21 is released. ..

As described above, the positioning member 210, the positioning device, and the positioning method according to the second embodiment have the same effects as those of the first embodiment. Further, the following effects are further obtained by the configuration shown below, which is characteristic of the second embodiment.

The positioning member 210 according to the second embodiment has at least the first, second and third arc portions 211a, 212a, 213a and the first, second and third arc portions 211a, 212a and 213a in one cross section orthogonal to the rotation axis O. The arc portions 211a, 212a, and 213a are provided with first, second, and third straight portions 211b, 212b, and 213b that are adjacent to each other, respectively. With the module 21 (constituent member 1a) positioned, the angle β1 around the rotation axis O from the first inflection point A to the first inflection point P21 and the second inflection from the second inflection point B The angle β2 around the rotation axis O up to the inflection point P22 and the angle β3 around the rotation axis O from the third inflection point C to the third inflection point P23 are different from each other.

According to the positioning member 210 configured in this way, when the positioning member 210 is rotated to release the contact state, the smaller the angles β1, β2, and β3 from the positioning point to the inflection points P21, P22, and P23, the more. It will be released first. Therefore, when the module 21 is released from the pressing force received from the positioning member 210 in the positioned state, the load generated on the component member 1a is reduced, and the component member 1a is prevented from inadvertently moving when the module 21 is released. be able to. As a result, highly accurate positioning can be maintained without the constituent member 1a shifting from the positioned position.

The assembly device for the fuel cell 1 according to the second embodiment has a plurality of positioning members 210, and the control unit 170 controls the operation of the plurality of positioning members 210 to position the constituent members 1a. The operation of switching the positioning of the member 1a from the open state is continuously performed between the positioning members 210. As a result, the pressing force applied to the constituent member 1a in the positioned state is gradually released as compared with the case where the contact state between all the constituent members 1a and the positioning member 210 is released at once. Therefore, it is possible to reduce the load generated when the laminated body 2 is released from the pressing force received from the positioning member 210, and to prevent the constituent member 1a from inadvertently moving when the laminated body 2 is released.

According to the method of assembling the fuel cell 1 according to the second embodiment, the positioning member 210 is rotated to sequentially open the contact state between the positioning member 210 and the constituent member 1a along the rotation direction of the positioning member 210. Therefore, when the module 21 is released from the pressing force received from the positioning member 210 in the positioned state, the load generated on the component member 1a is reduced, and the component member 1a is prevented from inadvertently moving when the module 21 is released. be able to. As a result, highly accurate positioning can be maintained without the constituent member 1a shifting from the positioned position.

Further, since a plurality of positioning members 210 are brought into contact with one constituent member 1a for positioning and the contact state between the constituent members 1a and the plurality of positioning members 210 is continuously released, compared with the case where they are opened at one time. , The load generated on the component member 1a can be further reduced by being released from the pressing force.

Although the positioning member, the fuel cell assembling device, and the fuel cell assembling method according to the present invention have been described above through the embodiments, the present invention is not limited to the contents described in the embodiments and is claimed. It is possible to make appropriate changes based on the description in.

For example, the positioning portion used for positioning by the positioning member is not limited to the inner peripheral edge of the cooling fluid manifold hole, and for example, a portion in the constituent member such as the inner peripheral edge of another manifold hole or the outer peripheral edge of the constituent member is appropriately selected. can do. Further, the positioning by the positioning member is not limited to the configuration of point contact, and may be surface contact. Further, the number of positioning portions is not particularly limited, and can be appropriately changed as long as the deviation of the positioning state can be suppressed.

Further, in the above-described embodiment, one positioning member is inserted into one manifold hole for positioning, but the present invention is not limited to this, and a plurality of positioning members may be inserted into one manifold hole for positioning. Even in this case, each positioning member has an open portion, and positioning and release can be selectively performed.

Further, the components of the fuel cell are arranged (laminated) in the height direction to form a laminated body, but the present invention is not limited to this, and the components of the fuel cell may be arranged in the horizontal direction.

Further, the operation of the positioning member is controlled by the drive unit and the control unit, but the operation is not limited to this, and the positioning member may be manually rotated or moved. Similarly, each component of the fuel cell is not limited to the configuration in which the transport unit transports the fuel cell, and may be manually transported.

1 fuel cell,
1a component,
2 laminated body,
60 manifold holes,
100 fuel cell assembly device,
110, 210 Positioning member,
111 Open part,
110a arc part,
211a First arc,
212a second arc,
213a Third arc,
110b straight part,
211b First straight section,
212b Second straight section,
213b Third straight section,
170 control unit,
O rotation axis,
α twist angle,
S1, S2 line segment Z array direction,
The direction that intersects the X and Y array directions.

Claims (8)

A positioning member used to position a position in which the component is arranged by contacting a part of the component in the fuel cell.
Possess an opening for releasing the contact state between the structural member,
A rotating shaft is provided, and by rotating around the rotating shaft, it is possible to switch between a state in which the contact with the constituent member is positioned and a state in which the contact state with the constituent member is open.
In the cross section orthogonal to the rotation axis, the outer peripheral surface has an arc portion formed of an arc surface coaxial with the rotation axis.
The open portion is formed of a straight line portion formed by a straight line obtained by cutting a part of the arc surface from the arc portion.
The circular arc portion and the line connecting the axial direction of the straight line portion and the rotation axis of the inflection point of intersection will have a helix angle with respect to the rotation axis, the positioning member. The positioning member according to claim 1 , wherein the component is positioned by contacting a part of the inner peripheral edge of the manifold hole through which the fluid passes. The positioning member according to claim 1 or 2 ,
It has a control unit that controls the operation of the positioning member.
The control unit controls the operation of the positioning member, brings the positioning member into contact with the component member to position the component member, and releases the contact state between the positioning member and the component member by the open portion. Fuel cell assembly device. Having a plurality of the positioning members
The control unit controls the operation of the plurality of positioning members, and continuously performs an operation of switching between a state in which the constituent members are positioned and a state in which the positioning of the constituent members is open is continuously performed between the positioning members. , The fuel cell assembling device according to claim 3 . The positioning member is brought into contact with a part of the constituent members in the fuel cell to position the position where the constituent member is arranged.
The contact state between the positioning member and the constituent member is released, and the contact state is released.
It is separated the positioning member from the structural member,
When a plurality of the constituent members are arranged to form a laminated body, each of the constituent members is positioned in a direction intersecting the arrangement direction by the positioning member.
Sequentially open method of assembling a fuel cell along the contact state between the structural member and the positioning member in the arrangement direction of the laminate. The method for assembling a fuel cell according to claim 5 , wherein the laminated body is pressurized in the arrangement direction of the constituent members before the contact state between the positioning member and the constituent members is released. The method for assembling a fuel cell according to claim 5 or 6 , wherein the positioning member is rotated to sequentially open the contact state between the positioning member and the constituent member along the rotation direction of the positioning member. A plurality of the positioning members are brought into contact with one of the constituent members for positioning.
The method for assembling a fuel cell according to any one of claims 5 to 7 , wherein the contact state between the constituent member and the plurality of positioning members is continuously released.