JP2006212533A - Dehumidification element and its production method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dehumidification element which is excellent in a mass production property and improves the problem of a fall of adhesive force, and to provide its production method. <P>SOLUTION: The dehumidification element 10 includes a dehumidification membrane 11, an anode electric supplying material 12, a cathode electric supplying material 13, a first member 14, a second member 15, two eyelets 16 as one example of a mechanical fixing member, an insulation coating 17, an adhesive sheet 18 and a lead wire 19. One of the two eyelets 16 functions as an anode terminal 121 through electrically contacting the anode electric supplying material 12 and the leading wire 19 is soldered on the crowning part. The remaining one of the two eyelet 16 functions as a cathode terminal 131 through electrically contacting the cathode electric supplying material 13 and the leading wire 19 is soldered on the crowning part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dehumidifying element suitable for removing or reducing the amount of water vapor, water droplets, or other forms of water (hereinafter collectively referred to as “water”) from a space such as the atmosphere. More particularly, the present invention relates to a dehumidifying element that performs electrochemical dehumidification and a method for manufacturing the same.

  As the dehumidifying element, a solid polymer electrolyte membrane, an anode made of a gas-permeable conductor formed on one surface of the solid polymer electrolyte membrane, and the other surface of the solid polymer electrolyte membrane A dehumidifying element composed of a cathode made of a gas-permeable conductor formed so as to face the anode, and an external power source provided at the periphery of the anode so as to be electrically connected to the anode A frame-like anode-side lead electrode for electrical connection with the positive electrode of the cathode, and a cathode-like lead electrode provided at the periphery of the cathode to be electrically connected to the negative electrode of the external power source A frame-like cathode-side lead electrode, a first insulating outer layer film provided so as to cover the anode-side lead electrode, and a second insulating property provided so as to cover the cathode-side lead electrode An outer layer film and the first insulating outer layer And a resin layer sandwiched between the second insulating outer layer film, the dehumidifying element, the anode side extraction electrode, the cathode side extraction electrode, the first insulating outer layer film, and the second insulation. A dehumidifying element module in which a porous outer layer film is integrated by the resin layer is conventionally known from Patent Document 1 described later.

In the technique of Patent Document 1, first, an anode feeder and a cathode feeder are attached to a dehumidifying film using an inter-anode film and an inter-cathode film provided with an epoxy resin adhesive layer on the front and back surfaces, and further, an anode feeder. And an upper outer layer film and a lower outer layer film provided with an adhesive layer such as epoxy resin on one side are stuck so as to cover the cathode power supply. In addition, as an upper outer layer film, a lower outer layer film, a film between anodes, and a film between cathodes, an epoxy resin is applied to polyethylene terephthalate having a thickness of about 0.2 mm on one or both sides with a thickness of about 20 μm, and a prepreg (semi-cured) It is in a state and used with an adhesive property.
JP 2004-33884 A (Claim 1)

A conventional dehumidifying element module is manufactured by producing polyethylene terephthalate, an anode feeder, and a cathode feeder, which are component parts, as a single product, and stacking each part on a processing stage and integrally forming it by hot pressing. . In the production, for example, the production capacity is one for a hot press stage size of 19600 mm ² (140 mm × 140 mm), and a processing time of 15 minutes for heating and 15 minutes for slow cooling is required. Furthermore, since the film is heated and brought into close contact with each other, the residual stress in the film decreases with time and the pressing force against the dehumidifying film is reduced, so that the adhesion force between the anode feeder and the cathode feeder is reduced. However, there is a problem that the performance deteriorates with time.

  Therefore, in view of the above problems in the prior art, the present invention has an object to propose a dehumidifying element excellent in mass productivity and improved in the above-described problem of decrease in adhesion, and a method for manufacturing the same. It is.

  The dehumidifying element of the present invention includes a dehumidifying film having an anode for electrolyzing water and a cathode for generating water, an opening disposed on the anode side and allowing the anode feeding member and the anode to contact the dehumidified space. A first member having a portion, a second member disposed on the cathode side and having an opening that allows the cathode feeding member and the cathode to contact the water discharge space, and the first member, the dehumidifying film, and the A mechanical fixing member for mechanically fixing the anode power supply member, the anode, the cathode power supply member, and the cathode so as to be in electrical contact with each other in the stack with the second member; It is a feature.

  The dehumidifying element manufacturing method of the present invention includes a dehumidifying film including an anode for electrolyzing water and a cathode for generating water, and the anode feeding member and the anode in contact with the dehumidified space disposed on the anode side. A first member sheet including a plurality of first members having an opening to enable, and a first member sheet having an opening disposed on the cathode side and allowing the cathode power supply member and the cathode to contact the water discharge space. A first step in which a plurality of two members are overlapped with a second member sheet including the same arrangement as that of each of the first members included in the first member sheet to form an overlapping sheet body, the overlapping sheet body A second step of mechanically fixing each anode power supply member and the anode, each cathode power supply member and the cathode included in each of the electrodes to electrically contact each other; One member, dehumidifying membrane and second part Bets are those characterized by comprising a third step of obtaining a plurality of dehumidifying elements that are mechanically fixed.

  The dehumidifying element of the present invention can be manufactured in a short time because it has a very simple structure in which the stacked body of the first member, the dehumidifying film, and the second member is fixed by a mechanical fixing member. In addition, since the fixing member has a much longer stress relaxation time than the film used in the above-described prior art, the adhesion force in the stacked body is maintained for a long time, and the problem of performance deterioration due to a decrease in adhesion force is improved. .

  The dehumidifying element manufacturing method of the present invention includes the first member sheet, the dehumidifying film, and the second member sheet that are stacked and mechanically fixed, and then the fixed stacked sheet body is collectively separated by, for example, a laser processing machine. Cutting makes it possible to improve the material yield, and at the same time, there are remarkable effects such as cost reduction and size reduction.

  In the following, parts having the same function are denoted by the same reference numerals, and description of the parts may be omitted in some subsequent drawings.

Embodiment 1 FIG.
1 to 5 illustrate the first embodiment of the present invention. FIG. 1 is an external perspective view of a dehumidifying element, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 4 is an exploded perspective view of the dehumidifying element, FIG. 4 is a schematic cross-sectional view for explaining the method of assembling the dehumidifying element, and FIG. 5 shows the relationship between the dehumidifying capacity of the dehumidifying element and the steady-state current value with respect to the size of the pressurization during the assembly. It is a graph.

  1 to 4, the dehumidifying element 10 of Embodiment 1 includes a dehumidifying film 11 having a solid polymer electrolyte membrane 101, an anode 102, and a cathode 103, an anode feeder 12, a cathode feeder 13, and a first member 14. , The second member 15, two eyelets 16 as an example of the mechanical fixing member described above, an insulating film 17, an adhesive plate 18, and a lead wire 19. One of the two eyelets 16 is in electrical contact with the anode power supply 12 and functions as an anode terminal 121, and a lead wire 19 is soldered to the top thereof. On the other hand, the remaining eyelet 16 is in electrical contact with the cathode power supply 13 to function as a cathode terminal 131, and a lead wire 19 is soldered to the top thereof. In addition, as eyelet 16, an eyelet made by McEight, in which gold plating is applied to brass, was used.

  As the dehumidifying film 11, those conventionally known or well known in the art, for example, the anode 102 composed of a catalyst layer and a porous conductor, the cathode 103 composed of a catalyst layer and a porous conductor, and the both electrodes The anode 102 and the cathode 103 are filled with a solid polymer electrolyte. The solid polymer electrolyte layer 101 is located between the anode 102 and the anode 103. For example, an insulating film 17 is applied to a solid polymer electrolyte membrane (thickness: 175 μm) manufactured by DuPont with platinum plating having a plating thickness of 1 μm or less, except for the portion facing the dehumidifying window. Pattern printed, titanium mesh (thickness 150μm), solid polymer electrolyte membrane and carbon paper formed by hot pressing, and then coated with a catalyst of carbon powder carrying platinum on the surface of titanium mesh, solid It is also possible to use what applied the platinum catalyst to both surfaces of the polymer electrolyte membrane.

  The first member 14 is a sheet-like member having an opening 141 that allows the anode 102 of the dehumidifying film 11 to contact the dehumidified space, and the second member 15 is configured such that the cathode 103 of the dehumidifying film 11 is dehumidified. It is a sheet-like thing which has the opening part 151 which enables it to contact | connect a space. Each of the openings 141 and 151 functions as a dehumidifying window of the dehumidifying film 11. The material for forming the first member 14 and the second member 15 is an electrical insulating material capable of preventing an electrical short circuit between the anode 102 and the cathode 103, and the eyelet 16 or each embodiment described later. A machine capable of fixing the first member 14, the dehumidifying film 11 and the second member 15 in a stacked state (hereinafter referred to as a three-layer stacked body SP) with a good adhesion state by a mechanical fixing member employed. Any structural material having sufficient strength may be used. Examples of such electrically insulating structural materials include the following thermoplastic organic polymers, thermoset organic polymers, crosslinked or vulcanized rubbers, and inorganics.

  Examples of thermoplastic organic polymers include polyolefins such as polyethylene, polypropylene, polybutene, and poly-4-methylpentene, conventionally well-known thermoplastic resins such as polystyrene, nylon, thermoplastic polyester, and acrylic resin, and polytetrafluoroethylene. , Fluororesins such as polychlorotrifluoroethylene, silicone resins, ethylene-vinyl acetate copolymer, acrylonitrile-styrene copolymer, acrylonitrile-butadiene copolymer, polystyrene thermoplastic Elastomers, thermoplastic elastomers such as polyolefin-based thermoplastic elastomers, polyamide-based thermoplastic elastomers, high-impact polystyrene (HIPS), ABS resin, technopolymer AES resin used in Embodiment 1, etc. Graft copolymers such as graft copolymer (AES resin) obtained by graft copolymerization of styrene and acrylonitrile on ethylene propylene copolymer, engineering plastics such as liquid crystal polymer, polycarbonate, polysulfone, polyethersulfone, polyphenylene oxide, Etc. are exemplified. Examples of thermosetting organic polymers include epoxy resins, melamine resins, phenol resins, etc., which are reinforced with reinforcing materials such as glass fibers, ceramic fibers, metal fibers, mica, and carbon black. There may be. Examples of crosslinked or vulcanized rubber include ethylene-propylene copolymer rubber, ethylene-propylene-diene copolymer rubber, acrylonitrile-butadiene rubber, chloroprene rubber, epichlorohydrin rubber, silicon rubber, and the like. Is exemplified. Examples of inorganic materials include glass, synthetic quartz, and ceramics.

  Regarding the mechanical strength of the first member 14 and the second member 15, the larger the size of the three-layer stack, the larger the mechanical strength is required. However, the dehumidifying film has a size of about 3 mm square. For example, if both members 14 and 15 are made of cured epoxy resin reinforced with glass fiber, both members 14 and 15 are one piece if the thickness is about 0.5 mm. When the eyelet 16 is applied around the center of the three-layer stack, it can be fixed if necessary. At that time, as shown in FIGS. 1 to 4, when the two eyelets 16 are applied at a distance from each other, the adhesion between the layers in the three-layer stack is further improved. Therefore, when other materials are used as the constituent material of the first member 14 and the second member 15, calculation or trial and error based on the bending stress of the material and the size of the three-layer stack. The required thickness of both members 14 and 15 can be determined.

  The anode feeder 12 and the cathode feeder 13 are both made of a conductive metal such as copper, brass, gold or the like, or a plated body subjected to conductive plating such as gold plating. As shown in FIGS. 2 and 3, a flat plate 122 is provided at one end of a cylindrical body 121 that is the same as or slightly longer than the thickness of the first member 14, and a conductive plating layer 123 such as gold plating is provided at the other end. When the dehumidifying element 10 is assembled, an element without the conductive plating layer 123 is used, and the side where the layer 123 is not provided is inserted into the through hole B drilled in the first member 14. Then, a conductive plating layer 123 such as gold plating is applied to the penetrating tip, and the structure shown in FIGS. 2 and 3 is reached. The cathode power supply 13 is also inserted and formed in the through hole C of the second member 15 in the same manner as the anode power supply 12. It has a structure.

  The insulating film 17 is formed on both surfaces of the dehumidifying film 11 by coating / drying curing or other methods except where the conductive plating layer 123 and the conductive plating layer 133 are applied. Any material may be used as long as it can achieve electrical insulation between the first member 14 and the second member 15 and the dehumidifying film 11, and any ordinary electrical insulation paint such as epoxy resin paint or acrylic resin paint may be used. good. The adhesive plate 18 is useful as a means for attaching the dehumidifying / dehumidifying element of the present invention to various devices that require dehumidification, as will be described later in Embodiment 7. For example, an acrylic resin plate coated with an epoxy resin adhesive is used.

  Next, a method for fixing the three-layer stack SP with the eyelet 16 will be described with reference to FIG. 4B is an enlarged view of the portion indicated by the arrow D in FIG. 4A, and FIG. 4D is an enlarged view of the portion indicated by the arrow D in FIG. 4C. is there. For this fixing, through holes B and C are perforated at a position common to all of the dehumidifying film 11, the first member 14, the second member 15, the insulating film 17, and the adhesive plate 18 having the insulating film 17 on both surfaces. Has been. The inner diameters of the through holes B and C are slightly larger than the outer diameter of the eyelet 16 to provide a gap for electrical insulation. By overlapping the first member 14 and the dehumidifying film 11, the anode feeder 12 attached to the first member 14 is in electrical contact with the anode 102 of the dehumidifying film 11 via the plating layer 123, and By overlapping the two members 15 and the dehumidifying film 11, the cathode power supply 13 attached to the second member 15 is in electrical contact with the cathode 103 of the dehumidifying film 11 through the plating layer 133, and thus The obtained three-layer stack SP is obtained.

  The eyelet 16 is attached to each of the through hole B and the through hole C of the obtained three-layer stack SP, and the cylindrical portions of the anode power supply body 12 and the cathode power supply body 13 are also passed through. Next, as shown in FIGS. 4A and 4B, the three-layer stacked body SP is installed between the upper molding jig 21 and the lower molding jig 22, and at this time, each open end of both eyelets 16 is opened. Is installed so that the protrusion 221 provided on one side of the lower forming jig 22 is inserted into the opening. Next, the upper forming jig 21 is moved in the direction of the arrow P to press the three-layer stacked body SP from both sides, and the open ends of both eyelets 16 are deformed as shown in FIG. As shown in (c), the three-layer stack SP is fixed by both eyelets 16. By this fixing, one of the eyelets 16 is in good electrical contact with the anode feeder 12 and the semicircular head functions as the anode terminal 121, and the other eyelet 16 is in good electrical contact with the cathode feeder 13. The semicircular head functions as the anode terminal 131.

  Next, although not shown, an adhesive plate 18 prepared separately is inserted between the three-layer stacked body SP and the lower molding jig 3 by widening the gap between the upper molding jig 21 and the lower molding jig 22. As shown in (E), the upper molding jig 21 and the lower molding jig 22 are pressed again in the direction of arrow P, and the adhesive plate 18 is attached with the gap between the upper molding jig 21 and the lower molding jig 22 widened. The three-layer stacked body SP is taken out, and finally the lead wire 19 is soldered to each of the anode terminal 121 and the cathode terminal 131, thus obtaining the dehumidifying element 10 shown in FIGS.

FIG. 5 shows the correlation between the dehumidifying ability of the dehumidifying element 10 as a finished product and the steady current value with respect to the pressing pressure in the pressing step of FIG. 4C, that is, the pressing pressure applied to the dehumidifying film 11 in the layer stack SP. In FIG. 5, when the three-layer stack SP is fixed at a press pressure of 0.2 to 0.5 kg / cm ² , the dehumidifying capacity of the dehumidifying element 10 may be 0.5 mg / hr and a steady current value of 1 mA or less. Recognize. Therefore, it can be seen that the dehumidifying element 10 with high efficiency and low current can be manufactured by fixing with a pressing pressure of 0.2 to 0.5 kg / cm ² .

Embodiment 2. FIG.
FIGS. 6 and 7 are for explaining the second embodiment of the present invention, both of which are exploded perspective views of related parts used in the process of mass-producing the dehumidifying element 10. In FIG. 6, first, a first member sheet 41, a dehumidifying film sheet 42, and a second member sheet 43 are installed in the order shown between the upper forming jig 21 and the lower forming jig 22. The dehumidifying membrane sheet 42 and the second member sheet 43 each have a plurality of small circles arranged in a matrix in a region surrounded by a white edge, and each small circle is described in the first embodiment. The dehumidifying film 11 and the second member 15 having the insulating film 17 on both surfaces. On the other hand, the first member sheet 41 has a plurality of a pair of two points arranged in a matrix within a region surrounded by a white edge, and the two points of the pair are the two described in the first embodiment. The head of each eyelet 16 is shown.

  In the first member sheet 41, the anode feeder 12 and the cathode feeder 13 are attached to the through hole B and the through hole C of the first member 14, and the eyelet 16 is attached to the through hole B and the through hole C as shown in FIG. As shown in a), a plurality of mounted items are arranged in a matrix in a region surrounded by white edges. The upper molding jig 21 and the lower molding jig 22 have positioning holes 211 and projections 221 that fit into the holes 211 at the four corners, respectively. The first member sheet 41, the dehumidifying film sheet 42, and the second member sheet 43 also have positioning holes 411, holes 421, and holes 431 at the same four corners as the holes 211, respectively. Subsequently, the upper sheet forming jig 21 and the lower sheet forming jig 22 are used to press the above-mentioned three-sheet stack, and the eyelets 16 are deformed as shown in FIG. Manufacturing.

  Next, as shown in FIG. 7, the gap between the upper molding jig 21 and the lower molding jig 22 is widened, and the adhesive plate sheet 6 is inserted between the molded product sheet 5 and the lower molding jig 22. The pressure-sensitive adhesive plate sheet 6 is arranged in a matrix form in a region surrounded by a white edge, which is the same as the pressure-sensitive adhesive plate 18 used in the first embodiment. Next, the molded product sheet 5 and the adhesive plate sheet 6 are integrated by pressing again with the upper molding jig 21 and the lower molding jig 22. The sheet-like material thus integrated is formed by arranging the sheets having the same structure as the dehumidifying element 10 of the first embodiment in a matrix, so that the sheet-like material is separated into a separation jig (FIG. It is possible to mass-produce one piece having a size of about 6 mm × 8 mm, for example, by separating and cutting into individual dehumidifying elements 10 with a laser processing machine (not shown).

  In addition, this mass production method is easy to automate, improves the mass productivity, and further, the residual stress due to the eyelet 16 exists for a long time as compared with the film in the prior art described above, so that the adhesion and reliability can be ensured. In addition, the PET film is eliminated and the anode and cathode are integrated with a housing member made of an insulating resin, for example, an epoxy resin, thereby reducing the number of components and the dehumidifying element 10 formed into a sheet shape. Can be separated and cut at once by a laser processing machine, so that the material yield can be improved, and the cost reduction and downsizing effects can be obtained accordingly.

Embodiment 3 FIG.
FIG. 8 is for explaining the third embodiment of the present invention, and is a schematic sectional view showing only the main part of the dehumidifying element 10 corresponding to FIG. 2 in the first embodiment. This also applies to FIGS. 9 to 10 described later. The third embodiment is different from the first embodiment in that a conductive metal rivet 7 is used in place of the eyelet 16 and the tip thereof is deformed to fix the three-layer stacked body SP. Are the same.

Embodiment 4 FIG.
FIG. 9 is for explaining the fourth embodiment of the present invention, and is a schematic sectional view of the dehumidifying element 10 corresponding to FIG. 2 in the first embodiment. The fourth embodiment is different from the first embodiment in that the tip is deformed by using a conductive metal split pin 8 instead of the eyelet 16 and the three-layer stacked body SP is fixed. The points are the same.

Embodiment 5. FIG.
FIG. 10 is a schematic cross-sectional view of the dehumidifying element 10 corresponding to FIG. 2 in the first embodiment for explaining the fifth embodiment of the present invention. The fifth embodiment is different from the first embodiment in that instead of the eyelet 16, two gripping members 9 made of conductive metal are used to grip and fix the illustrated both end portions of the three-layer stack SP. The other points are the same. One of the gripping members 9 is in contact with the anode power feeder 12 (not shown) and functions as the anode terminal 121, and the other is in contact with the cathode power feeder 13 (not shown) and functions as the cathode terminal 131. The gripping member 9 has a U-shaped cross section and has a length substantially equal to the length in the vertical direction on the paper surface of the three-layer stacked body SP, and grips and fixes both parts in the vertical direction. The fixing method may be arbitrary. For example, a semi-finished product in which the metal plate forming the gripping member 9 is slightly opened from the U-shape is separately prepared, and the two are applied to both sides of the three-layer stack SP. In this state, pressing is performed by the method shown in FIG. 4 to fix the three-layer stacked body SP as a U-shape. In this case, the press pressure is preferably about 0.2 to 0.5 kg / cm, as clarified from FIG. At that time, the gripping member 9 on the side functioning as the anode terminal 121 and the gripping member 9 on the side functioning as the cathode terminal 131 are necessary parts to be insulated from the cathode 103 and the anode 102 of the dehumidifying film 11, respectively. For example, an insulating film may be formed in advance on the inner surface of the U-shaped portion facing the side surface of the dehumidifying film 11.

Embodiment 6 FIG.
FIG. 11 is an exploded perspective view of the dehumidifying element 10 for explaining the sixth embodiment of the present invention. In the first embodiment and the like, the portion of the dehumidifying film 11 facing the dehumidifying window and the portions other than the through holes B and C in which the insulating film 17 is applied in the form of a sheet are used. The present invention is not limited to such a configuration. Therefore, the sixth embodiment is an example in which a dehumidifying film 11 different from the first embodiment is employed, and as shown in FIG. 11, the dehumidifying film 11 is formed into a required shape, and the first member 14 and the first member Electrical insulation provided with a hole for disposing the dehumidifying film 11 at each center of the two members 15 and a hole for mounting the above-described eyelet 16, rivet 7, split terminal 8, anode terminal 121, and cathode terminal 131. It is also possible to provide a plate 3.

Embodiment 7 FIG.
FIG. 12 is for explaining the seventh embodiment of the present invention, and is a schematic cross-sectional view showing a state in which the dehumidifying element 10 is attached to an attachment device E that needs to be dehumidified. In FIG. 12, the dehumidifying element 10 is held between the attachment device E and the dehumidifying element 10 via an adhesive plate 18 provided with an adhesive layer on both surfaces of the resin sheet, and moisture in the dehumidified space S1 is released into the water release space S2. To discharge. By reducing the size of one dehumidifying element 10 to, for example, about 6 mm × 8 mm, it is possible to dehumidify the inside of the housing of various small precision devices as the attachment device E.

Next, the dehumidifying mechanism by the dehumidifying element 10 will be described with reference to FIG. 2. When a voltage is applied between the anode 102 and the cathode 103 of the dehumidifying element 10, water is electrolyzed at the anode 101, and the following formula The reaction (1) occurs, and the humidity of the dehumidified space S1 decreases.
2H ₂ O → O ₂ + 4H ⁺ + 4e ⁻ (1)
Protons (H +) generated at this time pass through the solid polymer electrolyte membrane 101, and electrons (e−) pass through an external circuit to the cathode 103 composed of the catalyst layer in the dehumidifying membrane 11 and the porous conductor. And oxygen is consumed by the reaction of the following formula (2) to generate water. The generated water is discharged into the water discharge space S2.
O ₂ + 4H ⁺ + 4e ⁻ → 2H ₂ O (2)
Further, an average of about three molecules of water move from the anode 102 to the cathode 103 together with the proton (H +). Therefore, in the cathode 103, together with the water generated by the reaction of the formula (2), extra water moves from the anode 102, and the humidity of the dehumidified space S1 is lowered.

  The present invention is not limited to the first to seventh embodiments described above, and includes various modifications in accordance with the problem of the present invention and the spirit of the solution. For example, in place of the mechanical fixing member such as the eyelet 16 made of conductive metal, the rivet 7, the split pin 8, or the gripping member 9 employed in the first to seventh embodiments, the necessary mechanical member as the mechanical fixing member is used. It may be made of an electrically insulating material having strength, for example, made of various organic polymers exemplified as the constituent material of the first member 14 and the second member 15. In that case, there is a defect that there is no function as a terminal, which is an advantage of the above-mentioned conductive metal mechanical fixing member, but electrical insulation of a necessary part required in the case of conductive metal becomes unnecessary. There is an effect that the structure of the dehumidifying element and its manufacture are greatly simplified.

  Since the dehumidifying element of the present invention can be reduced in size and reduced in mass production, it is highly likely to be used for dehumidification inside the housing of various small precision devices such as surveillance cameras.

It is an external appearance perspective view of the dehumidification element in Embodiment 1 of this invention. It is sectional drawing along the AA line of FIG. It is a disassembled perspective view of the dehumidification element of FIG. It is a schematic sectional drawing explaining the assembly method of the dehumidification element of FIG. It is a graph which shows the relationship between the dehumidification capability of a dehumidification element with respect to the magnitude | size of the press pressurization at the time of an assembly, and a steady-state electric current value. It is description of the mass-production manufacturing method of the dehumidification element in Embodiment 2 of this invention. It is other description of the mass-production manufacturing method of the dehumidification element in Embodiment 2 of this invention. It is a schematic sectional drawing of the dehumidification element in Embodiment 3 of this invention. It is a schematic sectional drawing of the dehumidification element in Embodiment 4 of this invention. It is a schematic sectional drawing of the dehumidification element in Embodiment 5 of this invention. It is a disassembled perspective view of the dehumidification element dehumidification element in Embodiment 6 of this invention. It is a schematic sectional drawing of the dehumidification element dehumidification element in Embodiment 7 of this invention.

Explanation of symbols

10 dehumidifying element, 101 solid polymer electrolyte membrane, 102 anode, 103 cathode,
11 Dehumidifying membrane, 12 Anode feeder, 121 Anode terminal, 13 Cathode feeder,
131 Cathode terminal, 14 First member, 15 Second member, 16 Eyelet, 17 Insulating film, 18 Adhesive plate, 19 Lead wire, 21 Upper molding jig, 211 hole,
22 lower molding jig, 221 projection, 3 electrical insulating plate, 41 first member sheet,
42 Dehumidifying membrane sheet, 43 Second member sheet, 5 Molded product sheet, 6 Adhesive plate sheet,
7 rivets, 8 split pins, 9 gripping members, B through holes, C through holes,
E Mounting equipment, SP 3-layer stack, S1 dehumidified space, S2 Water release space.

Claims (10)

  A dehumidifying film comprising an anode for electrolyzing water and a cathode for generating water, an anode feeding member disposed on the anode side, and a first member having an opening that allows the anode to contact the dehumidified space; A cathode power supply member disposed on the cathode side, a second member having an opening that allows the cathode to contact the water discharge space, and a stack of the first member, the dehumidifying film, and the second member; A dehumidifying element comprising: a mechanical fixing member that mechanically fixes the anode power supply member, the anode, the cathode power supply member, and the cathode so that they are in electrical contact with each other.   The dehumidifying element according to claim 1, wherein the mechanical fixing member is a penetrating member that penetrates the stacked body and has fixing fastening portions at both ends.   The anode power supply member has a ring-shaped or cylindrical fixing hole, and the penetrating member is made of a conductive metal, and the cathode and the cathode power supply member are insulated, The dehumidifying element according to claim 2, wherein the dehumidifying element penetrates through the fixing hole in an electrically contacting state.   The cathode power supply member has a ring-shaped or cylindrical fixing hole, and the penetrating member is made of a conductive metal, and the anode and the anode power supply member are insulated, The dehumidifying element according to claim 2, wherein the dehumidifying element penetrates through the fixing hole in an electrically contacting state.   The dehumidifying element according to claim 2, wherein the penetrating member is made of an electrically insulating material.   The dehumidifying element according to claim 1, wherein the mechanical fixing member is a gripping member that grips and fixes at least one end of the stacked body.   The gripping member is made of a conductive metal, and the cathode and the cathode power supply member are insulated from each other, but are in electrical contact with the anode power supply member. Dehumidifying element.   7. The gripping member according to claim 6, wherein the gripping member is made of a conductive metal, and the anode and the anode power feeding member are insulated, but are in electrical contact with the cathode power feeding member. Dehumidifying element.   The dehumidifying element according to claim 6, wherein the gripping member is made of an electrically insulating material.   A dehumidifying film comprising an anode for electrolyzing water and a cathode for generating water, and a first member having an opening disposed on the anode side and enabling the anode feeding member and the anode to contact the dehumidified space A first member sheet including a plurality of the first member sheet and a plurality of second members disposed on the cathode side and having an opening that allows the cathode to contact the water discharge space. A first step of stacking a second member sheet included in the same arrangement as the individual first member included in the sheet to form a stacked sheet body, each anode feeding member included in the stacked sheet body and the anode And a second step of mechanically fixing each cathode power supply member and the cathode so as to be in electrical contact with each other, and cutting the stacked sheet body to form the first member, the dehumidifying film, and the second member. And several mechanically fixed Method of manufacturing a dehumidifying element, characterized in that it comprises a third step of obtaining a wet device.

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