JP2021086706A - Fixing apparatus - Google Patents

Abstract

To provide a fixing apparatus which suppresses an impregnation of an adhesive agent to a porous member when sucking and fixing a work-piece.SOLUTION: In a fixing apparatus sucking and fixing a work-piece 80, including: a porous member 14; a frame-like member 23 that provides an open in a thickness direction and separately houses the porous member in the open; and an adhesive agent 40 arranged over the circumference of the open in an outer edge part of the porous member and the frame-like member, a stage-like member having a mounting surface in which each suction port 57 is formed and the work-piece is mounted, and a plurality of communication holes 54 communicated with each of the plurality of suction ports 57 is provided. In the communication hole communicated to at least one part of a coated suction port on the outer edge side of the porous member from a plurality of coated suction ports 57a as a plurality of suction ports, a pressure at a part communicated with each coated suction ports becomes a pressure of an outer part region 40b or larger, which is faced to a portion where the adhesive agent is arranged in the work-piece.SELECTED DRAWING: Figure 6

Description

The present disclosure relates to a fixing device for fixing a porous body and a frame-shaped member.

A fixing device provided with a suction port is used, and a fixing device has been proposed in which a porous body is adsorbed and fixed by sucking air from the suction port. Patent Document 1 proposes a fixing device for adsorbing and fixing a membrane electrode gas diffusion layer assembly in which an anode-side gas diffusion layer is laminated on a membrane electrode assembly for a fuel cell. In the fixing device of Patent Document 1, a negative pressure chamber communicating with the suction port on the upper surface is formed inside the fixing device, and the negative pressure chamber is subjected to negative pressure by a vacuum pump connected to the negative pressure chamber via a pipe. The film electrode gas diffusion layer junction is adsorbed on the fixing device.

Japanese Unexamined Patent Publication No. 2019-109982

In a fuel cell, a frame-shaped member is arranged so as to surround the membrane electrode gas diffusion layer joint for the purpose of preventing leakage of reaction gas and cooling medium, fixing the arrangement position of the membrane electrode gas diffusion layer joint, and the like. Can be adopted. Further, in such a configuration, the membrane electrode gas diffusion layer bonded body and the frame-shaped member may be bonded to each other by an adhesive. For example, a configuration may be adopted in which the membrane electrode gas diffusion layer joint is separately housed in the opening of the frame-shaped member, and the adhesive is arranged over the outer edge of the porous member and the periphery of the opening in the frame-shaped member. .. When the work having such a configuration is suction-fixed by the fixing device of Patent Document 1, the adhesive located between the frame-shaped member and the membrane electrode assembly is sucked to the side end surface of the membrane electrode assembly. , May penetrate into the porous gas diffusion layer. When such permeation of the adhesive occurs, the amount of the adhesive located between the frame-shaped member and the membrane electrode assembly is reduced, and there is a possibility that a hole may be formed in the adhesive layer at such a portion.

Such a problem is not limited to the membrane electrode gas diffusion layer bonded body, but is common to the case where a work using a porous member having a porous portion at least partially is suction-fixed. Therefore, when the work is sucked and fixed, a technique capable of suppressing the penetration of the adhesive into the porous member is desired.

The present disclosure can be realized in the following forms.

According to one embodiment of the present disclosure, a porous member, a frame-shaped member provided with an opening in the thickness direction and accommodating the porous member in the opening at a distance, an outer edge portion of the porous member, and the frame-shaped member. Provided is a fixing device for sucking and fixing a work having an adhesive arranged around the opening in the member. In this fixing device, a plurality of suction ports for sucking the work are formed, and a mounting surface on which the work is placed at a predetermined position and a plurality of communication communicating with the plurality of suction ports, respectively. Outer edge side of the porous member among a plurality of coated suction ports which are a plurality of the suction ports which are provided with a trapezoidal member having a hole and are covered by the porous member placed on the above-mentioned mounting surface. In the communication hole communicating with the coating suction port, the pressure at the portion communicating with the coating suction port is equal to or higher than the pressure of the external region facing the portion where the adhesive is arranged in the work. It is configured in.

According to the fixing device of this form, the flat surface of the porous member in a plurality of coated suction ports, which are a plurality of suction ports covered with the porous member mounted on the mounting surface among the plurality of suction ports. In the communication hole communicating with at least a part of the coated suction port on the outer edge side along the line, the pressure at the portion connected to the coated suction port is equal to or higher than the pressure of the outer region facing the portion where the adhesive is arranged in the work. Since it is configured, it is possible to prevent the adhesive from penetrating into the porous member when the work is sucked and fixed. Therefore, the amount of the adhesive located between the frame-shaped member and the membrane electrode gas diffusion layer joint body is reduced, and it is possible to prevent the adhesive layer from being cracked or punctured at such a portion.

It is an exploded perspective view which shows typically the fuel cell manufactured by using the fixing device as one Embodiment of this disclosure. It is sectional drawing which shows typically the structure of the fuel cell. It is a plan view of the fixing device as one Embodiment of this disclosure. It is a top view which shows the state which attached the work to the fixing device in one Embodiment of this disclosure. It is a schematic cross-sectional view which shows the schematic structure of a fixing device and a work. It is a schematic diagram which shows the contact part between the upper plate and a work in an enlarged manner. It is a schematic diagram which enlarged and shows the contact part between the upper plate and a work which a fixing device has in a comparative example.

A. Embodiment:
A1. Outline configuration of fuel cell:
FIG. 1 is an exploded perspective view schematically showing a fuel cell 50 manufactured by using the fixing device as one embodiment of the present disclosure. In FIG. 1, the X-axis, Y-axis, and Z-axis that are orthogonal to each other are shown. The X-axis, Y-axis and Z-axis in the other drawings correspond to the X-axis, Y-axis and Z-axis of FIG. In the present embodiment, the X-axis direction is a general term for the + X direction and the −X direction. Similarly, the Y-axis direction is a general term for the + Y direction and the −Y direction, and the Z-axis direction is a general term for the + Z direction and the −Z direction.

Prior to the description of the fixing device 100 of the embodiment, the schematic configuration of the fuel cell 50 manufactured by using the fixing device 100 will be described. The fuel cell 50 has a configuration in which the MEGA (Membrane Electrode Gas diffusion layer Assembly) plate 24 is sandwiched between the separator 21 on the anode side and the separator 22 on the cathode side. The MEGA plate 24 includes a membrane electrode gas diffusion layer joint 10 (hereinafter, also referred to as “MEGA”) for a fuel cell and a frame-shaped member 23 arranged so as to surround the MEGA 10. A large number of fuel cells 50 are stacked to form a fuel cell stack, and are used as a power source in, for example, a vehicle. The fuel cell 50 is also called a single cell.

The separator 21 is formed of a gas-impermeable conductive member, for example, a carbon member such as dense carbon obtained by compressing carbon to make it gas-impermeable, or a metal member such as press-molded stainless steel. Six through holes 21a to 21f penetrating in the thickness direction are formed on the peripheral edge of the separator 21.

The through hole 21a forms a part of the cathode gas supply manifold along the stacking direction inside the fuel cell stack when the fuel cell stack is formed. The through hole 21b forms a part of the cathode off gas discharge manifold along the stacking direction inside the fuel cell stack when the fuel cell stack is formed.

The through hole 21c forms a part of the anode gas supply manifold along the stacking direction inside the fuel cell stack when the fuel cell stack is formed. The through hole 21d forms a part of the anode off-gas discharge manifold along the stacking direction inside the fuel cell stack when the fuel cell stack is formed. The through hole 21e forms a part of the cooling medium supply manifold along the stacking direction inside the fuel cell stack when the fuel cell stack is formed. The through hole 21f forms a part of the cooling medium discharge manifold along the stacking direction inside the fuel cell stack when the fuel cell stack is formed.

In the separator 21, a flow path groove 31 that communicates the through hole 21c and the through hole 21d is formed on the side facing the MEGA plate 24. In the flow path groove 31, the anode gas supplied from the through hole 21c flows toward the through hole 21d. Although omitted in FIG. 1, the flow path groove 31 is provided with a large number of ribs for controlling the flow of the anode gas.

The separator 22 has the same structure as the separator 21. Through holes 22a to 22f are formed in the separator 22. These through holes 22a to 22f have the same functions as the above-mentioned through holes 21a to 21f of the separator 21, respectively. In the separator 22, a flow path groove 32 that communicates the through hole 22a and the through hole 22b is formed on the side facing the MEGA plate 24. In the flow path groove 32, the cathode gas supplied from the through hole 22a flows toward the through hole 22b. Although omitted in FIG. 1, the flow path groove 32 is provided with a large number of ribs for controlling the flow of the cathode gas, similarly to the flow path groove 31.

The MEGA plate 24 includes a MEGA 10 and a frame-shaped member 23. A large opening is formed in the center of the frame-shaped member 23 in the thickness direction, and the MEGA 10 is arranged so as to cover the opening. In the present embodiment, the frame-shaped member 23 is formed of a thermoplastic resin. As the thermoplastic resin, for example, a resin selected from polypropylene (PP), phenol resin, epoxy resin, polyethylene terephthalate (PET), and polyethylene naphthalate (PEN) can be used. In the present embodiment, as the frame-shaped member 23, a three-layer resin member in which polypropylene (PP) is laminated on both sides of polyethylene naphthalate (PEN) is used. Through holes 23a to 23f are formed in the frame-shaped member 23. These through holes 23a to 23f have the same functions as the above-mentioned through holes 21a to 21f of the separator 21, respectively.

FIG. 2 is a cross-sectional view schematically showing the configuration of the fuel cell 50. The MEGA 10 includes a membrane electrode assembly (MEA: Membrane Electrode Assembly) 18, an anode-side gas diffusion layer 14, and a cathode-side gas diffusion layer 15. An adhesive layer is formed between the membrane electrode assembly 18 and the gas diffusion layers 14 and 15, but this is omitted in FIG.

The membrane electrode assembly 18 includes an electrolyte membrane 11 and an anode 12 and a cathode 13 which are catalyst electrode layers formed on each surface of the electrolyte membrane 11. The electrolyte membrane 11 is a proton-conducting ion exchange membrane formed of a polymer electrolyte material, for example, a fluororesin, and exhibits good proton conductivity in a wet state. The anode 12 and the cathode 13 are porous bodies having pores, and are formed by coating conductive particles carrying a catalyst such as platinum or a platinum alloy, for example carbon particles, with a polymer electrolyte having proton conductivity. To. The polymer electrolyte contained in the anode 12 and the cathode 13 may be a polymer of the same type as the polymer electrolyte constituting the electrolyte membrane 11, or may be a polymer of a different type.

The anode-side gas diffusion layer 14 is in contact with the surface of the anode 12 opposite to the surface in contact with the electrolyte membrane 11. The cathode-side gas diffusion layer 15 is in contact with the surface of the cathode 13 opposite to the surface of the cathode 13 in contact with the electrolyte membrane 11. The gas diffusion layers 14 and 15 are made of a porous member having gas permeability and electron conductivity, and are made of, for example, a porous metal member, a so-called expanded metal, or the like.

A2. Fixing device configuration:
FIG. 3 is a plan view of the fixing device 100 as an embodiment of the present disclosure. FIG. 3 shows a view of the fixing device 100 in the + X direction. Further, in FIG. 3, among the work 80 described later mounted on the fixing device 100, the frame-shaped member 23 and An_MEGA1 are represented by broken lines, respectively. FIG. 4 is a plan view showing a state in which the work 80 is attached to the fixing device 100 according to the embodiment of the present disclosure. FIG. 4 shows a view of the fixing device to which the work 80 is attached as viewed in the + X direction, as in FIG. FIG. 5 is a schematic cross-sectional view showing a schematic configuration of the fixing device 100 and the work 80.

The fixing device 100 sucks and fixes the work 80 in the manufacturing process of the fuel cell 50. In this embodiment, the work 80 is a work-in-process of the MEGA plate 24. The work 80 has a frame-shaped member 23, An_MEGA1, and an adhesive 40. An_MEGA1 is a member having a configuration in which the anode-side gas diffusion layer 14 is arranged on one surface of the membrane electrode assembly 18 and the cathode-side gas diffusion layer 15 is not arranged on the other surface of the membrane electrode assembly 18. is there. In the present embodiment, the adhesive 40 is an adhesive having UV curability (ultraviolet curable). An adhesive having a thermosetting property may be used instead of the UV curable property. The adhesive 40 plays a role of adhering the frame-shaped member 23 and An_MEGA1. Further, the adhesive 40 absorbs the deformation of the frame-shaped member 23 by the elasticity of the adhesive 40 itself and protects the electrolyte membrane 11 in An_MEGA1.

In the manufacturing process of the fuel cell 50, the following steps are executed before the work 80 is fixed to the fixing device 100. First, the frame-shaped member 23 is prepared. The frame-shaped member 23 is placed at a predetermined position of the fixing device 100. The fixing device 100 performs a suction operation to suck and fix the frame-shaped member 23. As a result, the misalignment of the frame-shaped member 23 is suppressed. The suction operation is continuously executed thereafter. An_MEGA1 is housed in the opening of the frame-shaped member 23 at a distance. In the gap between the frame-shaped member 23 and An_MEGA1, a part of the opening side of the frame-shaped member 23 on the surface opposite to the surface in contact with the fixing device 100, and the outer edge of the An_MEGA1 on the surface opposite to the surface in contact with the fixing device. Adhesive 40 is placed over. The adhesive is filled over the outer edge portion of An_MEGA1 and the periphery of the opening in the frame-shaped member 23. Through such a process, the work 80 is fixed to the fixing device 100. The work 80 fixed to the fixing device 100 is then conveyed to the UV irradiation device while being sucked and fixed to the fixing device 100, and is irradiated with UV by the UV irradiation device. Further, the work 80 after UV irradiation is conveyed to a processing region where the cathode side gas diffusion layer 15 is arranged while being sucked and fixed to the fixing device 100, and in such a processing region, the cathode side gas diffusion layer 15 works by a robot or the like. It is arranged at 80. Specifically, the cathode side gas diffusion layer 15 is arranged on the surface of the surface of the work 80 opposite to the surface in contact with the fixing device 100. At this time, the cathode side gas diffusion layer 15 is arranged so as to cover the adhesive portion arranged near the outer edge of the work 80. In this way, the plate 24 is completed, and the fuel cell 50 is completed by hot-pressing the plate 24 between the pair of separators 21 and 22.

As shown in FIG. 5, the fixing device 100 includes a trapezoidal member 59 and a suction portion 74.

The trapezoidal member 59 is a substantially plate-shaped trapezoidal member having a mounting surface 51 of the fixing device 100 on the surface in the −X direction. The trapezoidal member 59 has an upper plate 52, a frame portion 53, a lower plate 55, a negative pressure chamber 60, and a plurality of pipe members 58.

The upper plate 52 is joined to the upper surface of the frame portion 53 and closes the upper end portion of the negative pressure chamber 60. The upper plate 52 has a mounting surface 51 and a plurality of communication holes 54. The mounting surface 51 is one surface (surface in the −X direction) of the upper plate 52, and is a surface on which the work 80 is mounted at a predetermined position determined in advance.

As shown in FIGS. 3 and 4, a plurality of suction ports 57 are formed on the surface of the mounting surface 51 (the surface in the −X direction). Each suction port 57 is used to suck the work 80. When the fixing device 100 (mounting surface 51) is viewed in a plan view, as shown in FIG. 3, the plurality of suction ports 57 have a configuration in which rows consisting of five suction ports 57 are arranged in a rectangular ring shape over the entire circumference. Have.

As shown in FIG. 5, the plurality of communication holes 54 are formed along the X-axis direction from the suction port 57 to the surface of the upper plate 52 opposite to the surface on which the work 80 is placed. Most of the plurality of communication holes 54 are connected to the negative pressure chamber 60. However, as shown in FIGS. 3 to 4, among the suction ports 57 coated on An_MEGA1 (hereinafter, referred to as “covered suction port 57”), suction at a position closest to the outer edge side along the plane of An_MEGA1. The communication hole 54a communicating with the mouth 57a is open to the atmosphere via the pipe member 58.

Although not shown in FIG. 5, a coating agent 52a is applied to the mounting surface 51 as shown in FIG. 6 in order to facilitate peeling of the adhesive 40 from the trapezoidal member 59. In the present embodiment, for example, Teflon coating (“Teflon” is a registered trademark) is performed, but the coating agent is not limited to Teflon, and other coating agents can be used as long as the non-adhesive treatment of the adhesive 40 can be performed. There may be.

As shown in FIG. 5, the frame portion 53 has a frame plate-like external shape with an open central portion. The central opening of the frame portion 53 forms a negative pressure chamber 60 by sandwiching the frame portion 53 between the upper plate 52 and the lower plate 55. The frame portion 53 is joined to the outer edge portion of the surface of the upper plate 52 opposite to the surface on which the work 80 is placed. Further, the frame portion 53 is joined to the outer edge portion of one surface (the surface in the −X direction) of the lower plate 55.

The lower plate 55 is joined to the lower surface of the frame portion 53 opposite to the upper surface on which the upper plate 52 is arranged, and seals the lower end portion of the negative pressure chamber 60.

As shown in FIG. 5, the negative pressure chamber 60 is configured as a space surrounded by the upper plate 52, the opening of the frame portion 53, and the lower plate 55. The negative pressure chamber 60 is connected to a vacuum pump 70, which will be described later, of the suction unit 74 via a pipe (schematically shown by a solid line in FIG. 5) penetrating the lower plate 55. The negative pressure chamber 60 is depressurized by the vacuum pump 70. The negative pressure chamber 60 communicates with the communication hole 54, and the work 80 is suction-fixed to the fixing device 100 by reducing the pressure in the negative pressure chamber 60 by the vacuum pump 70.

The plurality of pipe members 58 are arranged in the negative pressure chamber 60, and their end portions in the + X direction are fitted into through holes provided in the lower plate 55. Each pipe member 58 has a structure similar to that of each other. One end of the pipe member 58 communicates with the communication hole 54a, and the other end is exposed to the outside through the lower plate 55. The pipe member 58 opens the suction port 57a to the atmosphere. Therefore, even when the negative pressure chamber 60 is depressurized, the pressure of the portion of the communication hole 54a connected to the suction port 57a is maintained at atmospheric pressure.

The suction unit 74 has a vacuum pump 70 and a control unit 72. The suction unit 74 sucks air from the mounting surface 51 and sucks An_MEGA1 and the frame-shaped member 23 on the mounting surface 51.

The vacuum pump 70 is connected to the negative pressure chamber 60 via an external pipe. The control unit 72 controls the vacuum pump so as to suck the air in the negative pressure chamber 60 through the external pipe to reduce the pressure in the negative pressure chamber 60.

FIG. 6 is a schematic view showing an enlarged contact portion between the upper plate 52 and the work 80. In FIG. 6, the portion where the adhesive 40 is arranged is enlarged and shown.

As shown in FIG. 6, in the process of arranging the adhesive 40, the gap G between the outer edge of An_MEGA1 and the end of the opening of the frame-shaped member 23 is filled with the adhesive 40. Here, in the present embodiment, the communication hole 54a communicating with the suction port 57a located at the position closest to the outer edge of An_MEGA1 among the coated suction ports 57 is open to the atmosphere via the pipe member 58. Therefore, in the communication hole 54a, the pressure of the portion connected to the suction port 57a is the same as the pressure of the outer region 40b facing the portion where the adhesive 40 is arranged in the work 80, that is, the atmospheric pressure. Therefore, the adhesive 40 filled in the void G is prevented from being vacuum-sucked and permeating into the anode-side gas diffusion layer 14 which is a porous member.

FIG. 7 is a schematic view showing an enlarged contact portion between the upper plate 152 and the work 80 of the fixing device in the comparative example. In FIG. 7, similarly to FIG. 6, the portion where the adhesive 40 is arranged is enlarged and shown. The fixing device of the comparative example includes a top plate 152 at the end in the −X direction. The upper plate 152 includes a large number of suction ports 157. The arrangement position of the suction port 157 when viewed in a plan view is the same as that of the suction port 57 of the present embodiment. Each suction port 157 communicates with a negative pressure chamber (not shown) through a communication hole 154. Therefore, among the coated suction ports covered with the work 80, the suction port on the outermost edge side also sucks the work 80. Therefore, in the communication hole 154 communicating with the suction port 157 on the outermost edge side of the coated suction port 157, the pressure of the portion connected to the suction port 157 is lower than the pressure of the outer region 40b. As a result, the adhesive 40 filled in the void G permeates into the anode-side gas diffusion layer 14. When a part of the adhesive 40 in the void G permeates into the anode side gas diffusion layer 14 in this way, the amount of the adhesive 40 in the void G decreases, and a crack occurs in the layer of the adhesive 40 in such a portion. Or there is a hole.

On the other hand, as described above, according to the fixing device 100 of the present embodiment, the adhesive 40 filled in the void G is suppressed from penetrating into the anode side gas diffusion layer 14, so that the adhesive 40 in the void G is suppressed. The layer of the adhesive 40 is prevented from cracking or puncturing. Therefore, it is possible to suppress the occurrence of cross-leakage of the reaction gas between the anode and the cathode.

According to the fixing device 100 of the embodiment described above, at least a part of the outer edge side of An_MEGA1 among the plurality of coated suction ports which are the plurality of suction ports 57 covered by the An_MEGA1 mounted on the mounting surface 51. In the communication hole 54a communicating with the coating suction port 57a, the pressure at the portion communicating with the coating suction port 57a is configured to be equal to or higher than the pressure of the outer region 40b facing the portion where the adhesive 40 is arranged in the work 80. Therefore, when the work 80 is suction-fixed, it is possible to prevent the adhesive 40 from penetrating into An_MEGA1. Therefore, the amount of the adhesive 40 located between the frame-shaped member and An_MEGA1 is reduced, and it is possible to prevent the layer of the adhesive 40 from being cracked or punctured at such a portion.

B. Other embodiments:
(B1) In the fixing device 100 of the above embodiment, a plurality of pipe members 58 communicating with a plurality of communication holes 54a at positions closest to the outer edge of An_MEGA1 penetrate the lower plate 55, but the present disclosure is limited to this. Not done. Only one of the plurality of pipe members 58 may be open to the atmosphere through the lower plate 55. In such a configuration, the other pipe member 58 may communicate with the one pipe member 58 in the negative pressure chamber 60.

(B2) In the fixing device 100 of the above embodiment, a plurality of communication holes 54a located closest to the outer edge of An_MEGA1 are open to the atmosphere, but the present disclosure is not limited to this. The plurality of communication holes 54a may be adjusted to a pressure higher than the atmospheric pressure. In such a configuration, each pipe member 58 may be connected to an air compressor and pressurized.

(B3) In the fixing device 100 of the above embodiment, the communication hole 54a on the outermost edge side of the covering communication holes covered with An_MEGA1 is opened, but the present disclosure is not limited to this. The communication holes communicating with at least a part of the covering suction ports on the outer edge side of the outer edge side and the center side of An_MEGA1 may be open to the atmosphere. Here, the outer edge side means the outer edge side in the direction from the center of An_MEGA1 to the outer edge. Further, the central side means the central side in the direction from the center of An_MEGA1 along the outer edge. As shown in FIG. 4, the fixing device 100 includes two suction ports 57 in the Y-axis direction or the Z-axis direction on the outer edge side of An_MEGA1 and one covering suction port 57a located at the outermost edge of An_MEGA1. Of the three coated suction ports, the outer edge side is a communication hole 54a communicating with the coated suction port 57a and a communication hole 54 communicating with the coated suction port 57 adjacent to the center side of the coated suction port 57a. Further, of the three coated suction ports, the central side is two communication holes 54 communicating with the two coated suction ports 57. The communication hole 54a communicating with the coating suction port 57a and the communication hole 54 communicating with the coating suction port 57 adjacent to the center side of the coating suction port 57a may be open to the atmosphere. Further, only the coating suction port 57 adjacent to the center side of the coating suction port 57a, that is, the communication hole 54 communicating with the coating suction port 57 in the middle of the three coating suction ports may be open to the atmosphere. Although the number of coated suction ports is shown in FIG. 4, it may be 4 or 5.
(B4) In the fixing device 100 of the above embodiment, the work 80 has An_MEGA1, but the present disclosure is not limited to this. The work 80 is not limited to An_MEGA1 and may have other porous members.
(B5) In the fixing device 100 of the above embodiment, the frame-shaped member 23 of the work 80 is placed at a predetermined position of the fixing device 100 and the frame-shaped member 23 is sucked. Is not limited to this. The work 80 may be sucked after all the constituent members of the work 80 are arranged in the fixing device 100.

The present disclosure is not limited to the above-described embodiment, and can be realized by various configurations within a range not deviating from the gist thereof. For example, the technical features of the embodiments corresponding to the technical features in each embodiment described in the column of the outline of the invention are for solving a part or all of the above-mentioned problems, or a part of the above-mentioned effects. Alternatively, they can be replaced or combined as appropriate to achieve all of them. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

10 ... Membrane electrode gas diffusion layer junction, 11 ... Electrolyte membrane, 12 ... Anode, 13 ... Cathode, 14 ... Anode side gas diffusion layer, 15 ... Cathode side gas diffusion layer, 18 ... Membrane electrode junction, 21 ... Separator, 21a ... Through hole, 21b ... Through hole, 21c ... Through hole, 21d ... Through hole, 21e ... Through hole, 21f ... Through hole, 22 ... Separator, 22a ... Through hole, 22b ... Through hole, 23 ... Frame-shaped member, 23a ... through hole, 24 ... MEGA plate, 31 ... flow path groove, 32 ... flow path groove, 40 ... adhesive, 40b ... external region, 50 ... fuel cell, 51 ... mounting surface, 52 ... top plate, 52a ... Coating agent, 53 ... Frame part, 54 ... Communication hole, 54a ... Communication hole, 55 ... Lower plate, 57 ... Covered suction port, 57 ... Suction port, 57a ... Suction port, 57a ... Covered suction port, 58 ... Tube member, 59 ... Trapezoidal member, 60 ... Negative pressure chamber, 70 ... Vacuum pump, 72 ... Control unit, 74 ... Suction unit, 80 ... Work, 100 ... Fixing device, 152 ... Top plate, 154 ... Communication hole, 157 ... Suction port 157 ... Covered suction port, G ... Void

Claims (1)

A porous member, a frame-shaped member provided with an opening in the thickness direction and accommodating the porous member in the opening at a distance, an outer edge portion of the porous member, and a periphery of the opening in the frame-shaped member. It is a fixing device that sucks and fixes the work having the adhesive and the arranged adhesive.
A plurality of suction ports for sucking the work are formed, and have a mounting surface on which the work is placed at a predetermined position and a plurality of communication holes communicating with the plurality of suction ports. Equipped with trapezoidal members
Of the plurality of coated suction ports that are the plurality of suction ports covered by the porous member placed on the above-mentioned mounting surface, at least a part of the coated suction ports on the outer edge side of the porous member is communicated with the coated suction ports. The pressure at the portion of the communication hole connected to the coating suction port is equal to or higher than the pressure of the external region facing the portion where the adhesive is arranged in the work.
Fixing device.

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