DE202014010163U1 - Humidifier plate for a humidifier module and humidifier module - Google Patents

Abstract

A humidifier panel for a humidification module for operating gases for fuel cells, comprising at least two sheets (10, 20) of flexible material each having at least one first perforation pattern (I) each having at least one port opening (11, 21) for inlet of a fluid and at least one port opening (12, 22) for an outlet of a fluid, having at least one second perforation pattern (II), each comprising a partial fluid distribution pattern, wherein at least in one path (10, 20) of the flexible material the first perforation pattern (II) I) with the second perforation pattern (II) at least partially in fluidic communication (I-II) is brought, and a third perforation pattern (III) having at least two flow openings (13, 13 ', 23, 23') which in of each individual web are in fluid communication with neither the first (I) nor the second perforation pattern (II) i the at least two webs (10, 20) of the flexible material are arranged on one another such that in each of the webs (10, 20) the at least one port opening (11, 21) for an inlet of a fluid and in each case the at least one port opening (11) are interconnected. 12, 22) for an outlet of a fluid of the first perforation pattern (I) at least partially in fluid communication with each other, whereby at least one inlet port of the composite of the at least two webs (10, 20) and at least one outlet port of the composite of the at least two webs (10 , 20) and in each of the tracks (10, 20) the flow openings (13, 13 ', 23, 23') of the third perforation pattern (III) are at least partially in fluid communication with each other, so that at least two throughflow ports of the Composite of at least two webs (10, 20) are formed; and in pairs, in each case two webs (10, 20) of the flexible material applied directly to one another, the at least one second perforation pattern (II) of a first flexible web (10) at least in regions, in each case with the at least one second perforation pattern (II) of the second, directly on the web (20) applied to the first web (10) is in fluidic communication at least in regions, so that the partial fluid distribution patterns in the respective webs (10, 20) applied directly to one another complete a continuous fluid distribution pattern via which fluidic communication between the at least an inlet port and the at least one outlet port is ensured, wherein the at least two mutually applied webs (10, 20) of the flexible material are cohesively, adhesively, materially and / or non-positively connected to each other.

Description

The present invention relates to a humidifier plate for a humidifier module, which is designed for humidifying operating gases for fuel cells. The moistener plate is in each case made of at least two webs of a flexible material, wherein the two webs may have complementary Teilperforationsmuster to a total perforation pattern. Alternatively, it is possible to form a corresponding overall perforation pattern in at least one path. As a result, a simple production of the humidifier is possible, for example via roll-to-roll processes, it can thereby, for example, films are laminated together. In addition, the present invention relates to a humidifier module comprising at least two of the aforementioned humidifier plates.

In the production of humidifier plates and / or humidifier modules, there are versatile requirements on the producer side, in particular to meet customer expectations. Thus, on the one hand, the humidifier modules must be as inexpensive to produce, therefore, the production must be highly automated, in addition to effect as small as possible deviations from predetermined parameters.

In addition, there are spatial requirements, in particular, humidifier should have the lowest possible height and be very filigree in construction with thin wall thicknesses.

All of the above requirements are difficult to implement in an injection molding process.

Thus, it is an object of the present invention to provide a humidifier plate or a humidifier module, whereby the available volume is optimally utilized with the lowest possible weight. In addition, the humidifier according to the invention should be produced with high design freedom. Furthermore, the process for the construction of the humidifier must be easy to automate and have a high reproducibility, in particular a high dimensional accuracy.

The invention is given in terms of a humidifier in protection claims 1, 8 and 9. Protection claim 21 relates to a humidifier module comprising at least two humidifier according to the invention. The respective dependent protection claims relate to advantageous embodiments.

The present invention thus relates, according to a first embodiment, to a humidifier plate for a humidifier module for humidifying operating gases for fuel cells
at least two sheets of a flexible material, respectively
at least one first perforation pattern, each comprising at least one port opening for an inlet of a fluid and at least one port opening for an outlet of a fluid,
have at least one second perforation pattern, each comprising a partial fluid distribution pattern,
wherein at least in a web of the flexible material, the first perforation pattern with the second perforation pattern is at least partially brought into fluid communication, as well as
a third perforation pattern having at least two flow openings that are in fluid communication with neither the first nor the second perforation pattern in each individual track,
wherein the at least two webs of the flexible material are arranged on each other such that in each case the at least one port opening for an inlet of a fluid and the at least one port opening for an outlet of a fluid of the first perforation pattern are in fluidic communication with each other, whereby at least one inlet port of the composite of the at least two webs and at least one outlet port of the composite of the at least two webs is formed and in each of the webs in pairs the throughflow openings of the third perforation pattern are in fluidic communication with each other at least in pairs, so that at least two throughflow ports of the composite of at least two tracks are formed; and in pairs in each case two webs of the flexible material applied directly to one another, the at least one second perforation pattern of a first flexible web is at least partially in fluidic communication with the at least one second perforation pattern of the second web applied directly to the first web, so that the partial fluid distribution patterns in the respective webs applied directly to each other complement each other to form a continuous fluid distribution pattern, via which a fluidic communication between the at least one inlet port and the at least one outlet port is ensured
the at least two mutually applied webs of flexible material are cohesively, adhesively, materially and / or non-positively connected to each other.

The humidifier according to the invention is thus characterized by the fact that it is formed from at least two tracks of a flexible material, these tracks each other are laminated. These webs may be, for example, films, in particular plastic films.

In both webs, a perforation pattern is introduced, which is composed of a first perforation pattern, a second perforation pattern and a third perforation pattern. The first perforation pattern serves to supply the humidifier, d. H. Through port openings, inlets and outlets can be created in the humidifier plate. These port openings extend through the humidifier plate, but have branches on the surface or inside the finished humidifier plate.

The second perforation pattern comprises a partial fluid distribution pattern and is in fluidic communication with the first perforation pattern so that a medium can be flowed through the port openings with the second perforation pattern or vice versa from the second perforation pattern, a medium in the port opening, d. H. the first perforation pattern can flow.

In addition, each web includes a third perforation pattern, which, however, is in fluid communication with neither the first nor the second perforation pattern. Thus, for example, gases, in particular gases, can be passed through the humidifier plate at this point, without these gases being distributed in the humidifier plate.

The two webs are laminated on top of each other so that the respective perforation pattern at least partially overlap one another, so that a fluidic communication is formed under the individual webs. Due to the fact that each track contains a second perforation pattern forming a partial fluid distribution pattern, the lamination of the two webs forms a complete fluid distribution pattern across the two partial fluid distribution patterns representing the second perforation pattern.

If only the two above-described webs are laminated to a moistener plate, they are used in particular for a monopolar stack construction in which the same gas is passed through the fluid distribution pattern on both sides of the moistener plate. Overall, there is then a construction in which, starting from a first membrane or a first membrane composite with associated gas diffusion medium, a first humidifier plate thus constructed adjoins, which distributes a moist gas on both surfaces. This is followed by a second membrane or a second membrane composite with associated gas diffusion medium, followed by a second in this type, with respect to the arrangement of their perforation compared to the first humidifier different constructed humidifier, which leads on both surfaces a dry, to be humidified gas. As a result, a particularly compact design of the humidifier stack is made possible. The manufacturing cost is greater due to the two plate designs. A monopolar humidifier plate thus provides in particular that the same fluid has both fluid distribution patterns over the same inflow port, ie. H. flows on both sides of the middle layer, and the respective fluid distribution patterns are thus supplied with the same medium via the same port. Likewise, the exit of the fluid from both fluid distribution patterns occurs via the same port outlet.

According to a preferred embodiment, at least 2, preferably up to 50 webs, preferably 2 to 25 webs, particularly preferably 2 to 5 webs, in particular 2 or 3 webs of the flexible material, are applied to one another and bonded together in the inventive moistener plate.

Furthermore, it is preferred if the second perforation pattern is formed in each individual web of the flexible material by a plurality of passage openings, wherein in pairs in each case two directly superimposed webs of the flexible material in each case in a first path and a second path, the passage openings offset from each other are and partially overlap.

This plurality of through openings may for example be recesses or punches in a respective web, which can be introduced in particular in a roll-to-roll method in the web.

More preferably, the humidifier plate according to the present invention comprises at least one additional sheet of flexible material applied to one of the at least two sheets of the flexible material and to the one of the two sheets to which the additional sheet is applied, cohesive, adhesive, cloth. and / or non-positively connected.

The additional web may have, for example, only a first and a third perforation pattern and thus port openings for supplying the humidifier plate or flow-through openings. Instead of the second perforation pattern, this additional path may also be closed, so that this path is suitable, for example, as the final path of a corresponding humidifier plate. Such humidifier plates are conceivable, for example, as the last plate in a humidifier module containing a plurality of stacked humidifier plates.

Thus, in the at least one additional path a perforation pattern is introduced with passages which at least partially overlaps or corresponds to the first and third perforation patterns of the at least two tracks, so that one or more passages with the inlet port, one or more passages with the outlet port and Through openings with the flow ports of the network of at least two tracks are at least partially in fluid communication. The perforation pattern in the individual webs need not necessarily be flush or have identical contour, but this is possible according to a preferred embodiment.

Another preferred embodiment of the special humidifier plate described above provides that it comprises at least two further sheets of a flexible material, each
at least one first perforation pattern, each comprising at least one port opening for an inlet of a fluid and at least one port opening for an outlet of a fluid,
have at least one second perforation pattern, each comprising a partial fluid distribution pattern,
wherein at least in one of the at least two further webs of the flexible material, the first perforation pattern with the second perforation pattern is at least partially brought into fluid communication, as well as
a third perforation pattern having at least two flow openings which are in fluidic communication neither with the first nor the second perforation pattern in each of the at least two further webs,
wherein the at least two further webs of the flexible material are applied to the at least two webs facing away from the at least one further web so that in the at least two other webs each at least the port opening for an inlet of a fluid of the first perforation pattern at least partially in whereby at least one inlet port of the composite of the at least two further webs is formed and the at least one port opening for an outlet of a fluid of the first perforation pattern is at least partially in fluidic communication with one another, whereby at least one outlet port of the composite of the at least two further Webs is formed and in all other paths each other in pairs, the flow openings of the third perforation pattern at least partially in fluid communication with each other, so that minde at least two flow ports of the composite of the at least two further webs are formed,
wherein one of the at least two further webs is applied to the at least one additional web such that the at least one inlet port of the composite of the at least two further webs with one or more through openings of the at least one additional web, the at least one outlet port of the composite of the at least two further webs Webs with one or more passage openings of the at least one additional web and the throughflow ports of the composite of the at least two further webs are each in fluidic communication with one or more passage openings of the at least one additional web at least in regions,
wherein the at least two further mutually applied webs of the flexible material are cohesively, adhesively, materially and / or non-positively connected with each other and with the at least one additional web.

The embodiment described above thus provides, in the case of identical first, second and third perforation patterns, a mirror-symmetrical configuration of the humidifier plate with respect to the webs relative to the middle web. The middle web has only a first and a third perforation pattern and thus passage openings for media, but has no fluid distribution pattern. On both sides of this web at least two tracks of flexible material are now formed, which are constructed as already explained above. Thus, according to this embodiment, via the middle web, the respective further webs arranged on both sides of this middle web can form a respective fluid distribution pattern, both patterns can communicate with each other via the apertures contained in the middle web, so that they can be forwarded a fluid flow from the one side of the middle track to the other side is made possible. The two fluid distribution patterns on the two sides of the middle track are operated in DC, it is a monopolar structure.

A second preferred embodiment provides that the humidifier plate comprises at least two further sheets of flexible material, each
at least one own first perforation pattern, each comprising at least one port opening for an inlet of a fluid and at least one port opening for an outlet of a fluid,
have at least one own second perforation pattern, each comprising a partial fluid distribution pattern,
wherein at least in one of the at least two further webs of the flexible material, the first perforation pattern with the second perforation pattern at least partially brought into fluidic communication, as well
a third perforation pattern having at least two flow openings which are in fluidic communication neither with the first nor the second perforation pattern in each of the at least two further webs,
wherein the at least two further webs of the flexible material are applied to the at least two webs facing away from the at least one further web so that in the at least two other webs each at least the port opening for an inlet of a fluid of the first perforation pattern at least partially in whereby at least one inlet port of the composite of the at least two further webs is formed, and in each case the at least one port opening for an outlet of a fluid of the first perforation pattern is at least partially in fluidic communication with one another, whereby at least one outlet port of the composite of the at least two further webs is formed and in each other paths each other in pairs the flow openings of the third perforation pattern at least partially in fluid communication with each other, so that min at least two through-flow ports of the composite of the at least two further webs are formed,
wherein one of the at least two further tracks is applied to the at least one additional track such that the at least one inlet port and the at least one outlet port of the composite of the at least two further tracks each having one or more passage openings of the at least one additional track and at least one of the Durchströmungsports of the composite of the at least two further webs are at least partially in fluid communication with one or more passage openings of the at least one additional web,
wherein the at least two further mutually applied webs of the flexible material are cohesively, adhesively, materially and / or non-positively connected with each other and with the at least one additional web.

Thus, in the case of identical first, second and third perforation patterns, the previously described embodiment provides a rotationally symmetric or chiral configuration of the humidifier plate with respect to the tracks relative to the central track. The middle web has only a first and a third perforation pattern and thus passage openings for media, but has no fluid distribution pattern. On both sides of this web at least two tracks of flexible material are now formed, which are constructed as already explained above. Thus, according to this embodiment, via the middle web, the respective further webs arranged on both sides of this middle web can form a respective fluid distribution pattern, both patterns can communicate with each other via the apertures contained in the middle web, so that they can be forwarded a fluid flow from the one side of the middle track to the other side is made possible. The two fluid distribution patterns on the two sides of the middle track are operated in the DC, counter or cross-current, it is a bipolar structure. The bipolar structure is characterized in that only a single plate type is used, with different gases being conducted on both sides of the humidifier plate. On the humidifier membrane or the membrane composite with associated gas diffusion medium on the first side of the humidifier follows the distribution of moist gas, on the other side of the humidifier is dry, to be humidified gas distributed, this is adjacent to the next humidifier, it follows another humidifier, on the surface of this humidifier membrane facing the last-mentioned humidifying membrane is dispersed with moist gas which humidifies the above-mentioned gas to be humidified via this humidifying membrane. In a bipolar plate, the fluid distribution patterns in the respective webs are arranged in cocurrent, countercurrent or crossflow so that the respective fluid distribution patterns disposed on the front and back of the middle web have different port inlets and outlets.

According to a third embodiment, the present invention relates to a humidifier plate comprising
at least three tracks of a flexible material, wherein
at least one first perforation pattern, which in each case comprises at least one port opening for an inlet of a fluid, is introduced into the at least one first web and the at least one third web of the flexible material,
in the at least one first web and the at least one third web of the flexible material, at least one second perforation pattern is introduced, each comprising a fluid distribution pattern, wherein in the at least one first web and the at least one third web of the flexible material, the first perforation pattern the second perforation pattern is at least partially brought into fluid communication,
in the at least one first web and the at least one third web of the flexible material, in each case a third perforation pattern is introduced, which has at least two throughflow openings which are in fluid communication with neither the first nor the second perforation pattern within the respective web,
at least four passage openings are made in the at least one second track of the flexible material,
the at least three webs of the flexible material are brought together so that the at least one second web is received between the respective at least one first web and at least one third web, wherein
in each case the at least one port opening of the first perforation pattern of the at least one first web and the at least one third web is in fluidic communication at least in regions with in each case one passage opening of the at least one second web,
in each case the second perforation pattern of the at least one first web and the at least one third web is in fluidic communication at least in regions with in each case one passage opening of the at least one second web, and
The at least two passage openings of the third perforation pattern of the at least one first track and the at least one third track are in fluidic communication with the respective passage openings of the at least one second track, at least in regions
the at least three mutually applied webs of flexible material are cohesively, adhesively, materially and / or non-positively connected.

In addition, according to a fourth embodiment, the invention relates to a humidifier plate comprising at least three sheets of a flexible material, wherein
in which at least one first web and the at least one third web of the flexible material, in each case at least one second perforation pattern is introduced, each comprising a fluid distribution pattern,
in the at least one first web and the at least one third web of the flexible material, in each case a third perforation pattern is introduced, which has at least two throughflow openings which are not in fluid communication with the second perforation pattern within the respective web,
at least four passage openings are made in the at least one second track of the flexible material,
the at least three webs of the flexible material are brought together so that the at least one second web is received between the respective at least one first web and at least one third web, wherein
in each case the second perforation pattern of the at least one first web and the at least one third web is in fluidic communication at least in regions with in each case one passage opening of the at least one second web, and
the at least two passage openings of the third perforation pattern of the at least one first track and the at least one third track are in fluidic communication with the respective passage openings of the at least one second track, at least in regions, and
the at least three mutually applied webs of flexible material are cohesively, adhesively, materially and / or non-positively connected.

In the previously mentioned embodiments of the humidifier plates, it is particularly preferred that the paths are arranged so that the humidifier plate is a bipolar or monopolar humidifier plate. The characteristics of the two plate types have already been described in the context of the respective first embodiment of the respective plate type. The above-described bipolar or monopolar configurations of the humidifier plate also apply to multi-layered, that is constructed of a plurality of webs, in particular for the five-layered humidifier plate already described above.

The two above-described third and fourth embodiments of the humidifier according to the invention are similar to the above-described five-layered second embodiment, also here fluid distribution patterns are formed on both sides of a web having no fluid distribution pattern and the two arranged on their sides fluid distribution pattern separated from each other, so that on separated gases of different moisture content are separated from each other on the surfaces of the humidifier plate opposite to each other. Due to the web without fluid distribution pattern, a bipolar structure is thus made possible. However, unlike the five-layered second embodiment described above, these third and fourth embodiments comprise only three layers of webs.

For all of the embodiments described above, it is preferred if each web has substantially the same or the same outer dimensions and are applied substantially congruently or congruently to one another.

The perforation patterns in the individual webs can be produced by means of punching, in particular by means of a roll punch or by means of a stroke punching device, cutting, or by a laser cutting process.

The webs can be laminated by means of a roll-to-roll process, wherein in particular the individual webs are continuously applied and bonded to one another and, after the connection has been established, the individual moistener plates can be cut to length.

The respective web is preferably a film, preferably with a thickness of 0.05 to 10.0 mm, more preferably from 0.1 to 1.0 mm, in particular from 0.2 to 0.6 mm.

The humidifier according to the present invention has an extremely low total thickness, in particular, it is characterized by a total thickness of 0.5 to 50 mm, preferably 1.0 to 20 mm, more preferably from 1.2 to 5.0 mm, in particular 1 , 5 to 2 mm off.

The flexible material may in particular be selected from the group consisting of thermoplastics, preferably polyesters, such as. PET, PEN, PBT; Polyolefins, such as. Eg PE, PP; Polyamides, PPA; PEEK; PSU; PEI; PAI; PPS and blends or combinations thereof.

Preferably, the webs of the flexible material are bonded by means of gluing, thermoforming, by dissolving and then compressing and / or by pressing the webs of the flexible material.

In particular, the adhesive bond by means of 2-component adhesives, in particular by means of Epoxidharzklebern, silicone adhesives, polyurethane adhesives, phenolic adhesives, melamine resin adhesives, or by means of pressure-sensitive adhesives, in particular by means of solvent-based pressure-sensitive adhesives, Disperionshaftklebern, hotmelt adhesives, such. As silicone, polyacrylate, ethylene-vinyl acetate and / or natural rubber based pressure-sensitive adhesives.

When solubilizing, for example, a solvent selected from the group consisting of ketones, esters, aliphatic and / or aromatic hydrocarbons can be used.

Particularly preferably, the thermal bonding is carried out at temperatures of 150 to 350 ° C, preferably from 200 to 280 ° C, more preferably at most 50 ° C above the melting point of the flexible material.

The present invention further relates to a humidifier module for humidifying operating gases for fuel cells, comprising at least two stacked, described in the foregoing humidifier plates, each in pairs by at least one between the two forming the pair of humidifier, at least in the region of the second perforation existing, at least for Water or water vapor permeable membrane are separated. Alternatively, the humidifier module is also referred to as a humidifier stack or humidifier stack.

This humidifier module can also comprise more than two, in particular two to one hundred humidifier plates, which are stacked on top of each other.

A preferred embodiment of the humidifier module provides that between the at least one membrane and one or both of the humidifier plates arranged on the membrane a gas diffusion layer is arranged at least in the region of the second perforation pattern of the humidifier plates, which can be formed as a separate component or as part of a membrane composite The latter case, the gas diffusion layer is laminated with the membrane, so part of the membrane composite.

In this case, the gas diffusion layer may have a frame surrounding an active gas diffusion layer, wherein preferably gas diffusion layer and frame are flexible. The web, which is formed by the flexible frame and the gas diffusion layer, may be part of the film composite, thus forming a web of the film composite.

In this case, it is particularly preferred if in each case the pair of humidifier plates, between which the at least one membrane is arranged, is arranged on the DC principle, on the countercurrent principle or in the crossflow principle with respect to one another.

The present invention will be further elucidated with reference to the following figures and embodiments, without reducing the invention to the parameters specifically shown. Reference numerals are not necessarily repeated in all figures, since identical reference numerals are used for identical functional elements in all figures.

1a shows a first embodiment of a humidifier according to the invention, which may be formed of two webs. A first track 10 has a first perforation pattern I on, in this case through two port openings 11 and 12 is formed. These port openings 11 and 12 are in the example of the 1a in the edge region of the web material of the first web 10 arranged. In addition, the first train points 10 a third perforation pattern III on, the two flow openings 13 and 13 ' having.

Furthermore, the first train includes 10 a second perforation pattern II , which is formed in this case of a plurality of perforations.

This first track 10 will be on a second track 20 a flexible material laminated to form a humidifier plate. The train 20 also includes a first perforation pattern I , the as well two port openings 21 and 22 includes. Next to it is the train 20 Flow openings 23 respectively. 23 ' on that a third perforation pattern in this orbit 20 form. The second perforation pattern included in this web II also includes a variety of perforations. In addition, perforations are introduced in the second path, the fluidic communication of the first perforation pattern I with the second perforation pattern II allow this is in 1a with the reference number I - II characterized.

When laminating these webs 10 and 20 on each other the humidifier plate according to the invention is produced. The perforation pattern I and III come here in the two tracks 10 and 20 exactly to cover, ie in each case the port openings 11 and 21 respectively. 12 and 22 come to rest on top of each other, the same applies to the flow openings 13 and 23 respectively. 13 ' and 23 ' ,

The perforations of the second perforation pattern II in both lanes 10 and 20 are arranged slightly offset from one another, so that when laminating the webs together 10 and 20 a continuous, over both lanes 10 and 20 forming extending perforation pattern. Thus, fluids, for example, the front side (ie on the visible side of the web 10 ) over the port opening 12 be flown in, even in the train 20 be guided and then trained on the perforation pattern II again in train 10 , It thus finds a fluidic distribution in by lamination of the webs 10 and 20 completed fluid distribution pattern II instead of. For example, a fluid may be via the port opening 12 be introduced into the plate and this through the port opening 11 leave.

1b shows a further development of the humidifier plate as in 1a shown. The two in 1a described in detail tracks 10 and 20 are also identical in the humidifier according to 1b contain, these plates are identically constructed as in 1a shown. The two become a complete fluid distribution pattern II complementary tracks 10 and 20 in each case one of a gas diffusion layer (GDL) 75 framed comprehensive railway. The gas diffusion layer 75 is thereby by a respective frame 70 respectively. 80 edged. In addition, these webs also include flow openings 74 . 84 about the one supply of the two tracks 10 and 20 With fluid or a flow through fluid is made possible.

2 shows a training of in 1 presented principle. The plate shown is with a finishing track 30 provided, wherein the humidifier formed by the composite of the illustrated webs can be used for example as a final element of a Befeuchterstacks. Incidentally, the same remarks apply as to 1 ,

A similar embodiment is also in detail in 3 shown, in which a three-layer running connection plate (shown on the left) is included by the humidifier according to the invention with. The end plate 30 indicates the paths 10 and 20 corresponding first perforation pattern I or third perforation pattern III so that a supply and disposal of the humidifier plate by means of fluids is possible. The fluid distribution is carried out according to the above to the 1 and 2 explained principles about the railways 10 and 20 ,

Looking at the 2 and 3 together, so they put the redirect ( 2 ) and the input and output side end plate ( 3 ) of a humidifier stack, between the in 2 and 3 shown elements of the end plates is doing a variety of humidification, but not shown here.

4a shows a further embodiment of a humidifier according to the invention. The plate is five-layered, ie comprises five separate tracks 10 . 20 . 30 . 40 and 50 , This embodiment is a continuation of the in 3 concept, in that on both sides of one (or more) middle lane 30 two separate tracks each 10 and 20 respectively. 40 and 50 are applied, each having a separate fluid distribution field II define. The railways 40 and 50 are identical to the tracks 10 and 20 ie, the fluid distribution plate is relative to the web 30 formed mirror-symmetrically. Im exemplary in 4a In the case illustrated, the resulting plate is designed monopolar, ie in the event that the plate, for example via the port opening 11 is supplied with fluid, this is on both sides of the respective same port opening of the first fluid distribution pattern I (respectively. I ' for the railways 40 and 50 ) in the respective pairs in the respective lanes 10 and 20 respectively. 40 and 50 trained fluid distribution patterns II distributed. Thus serve in this case, the port openings 11 . 21 . 41 and 51 z. B. as a port inlet, the diagonally opposite port openings 12 . 22 . 42 and 52 z. B. as a port outlet. The flow openings of the third perforation pattern III serve to pass a fluid through the entire humidifier plate formed by the illustrated webs, without this fluid is introduced into the respective fluid distribution pattern.

In the event that the tracks 40 and 50 concerning the tracks 10 and 20 be arranged rotated by 90 °, as in 4b indicated, results in a bipolar humidifier, even these Embodiment is of course included in the present invention. In such an arrangement, the two are on both sides of the middle track 30 trained fluid distribution pattern (ie in pairs the tracks 10 and 20 respectively. 40 and 50 ) independent of each other and can therefore be flown separately. The supply of the first fluid distribution pattern by the webs 10 and 20 is formed, then takes place via the port openings 11 and 12 while the fluid distribution pattern passing through the other two orbits 40 and 50 is formed, in each case via the corresponding other port openings 41 and 51 respectively. 42 and 52 can be supplied. These port openings are then in fluidic contact with the flow openings of the third perforation pattern of the first two webs 10 and 20 , Thus, for example, a fluid through the first three tracks 10 . 20 and 30 through the respective flow openings of the third perforation pattern or the port openings 33 and 33 ' passed through and thus passes to the second fluid distribution pattern, since the port openings 41 and 42 respectively. 51 and 52 then with the flow openings 33 and 33 ' the third lane are in fluidic contact.

In 5 become the five tracks 10 to 50 framed by two orbits, which is a gas diffusion layer 75 (GDL). The GDL 75 is, for example, a frame 70 respectively. 80 edged. The GDL 75 preferably covers the area of the respective tracks 10 respectively. 50 in which the second perforation pattern II is formed, that is, the active fluid distribution field. The respective railways, the GDL 75 include, also have corresponding flow openings 74 . 84 on, on the corresponding fluids to the respective tracks 10 to 50 can be forwarded. These openings 74 . 84 are arranged in particular at the same position as the corresponding port openings or flow openings of the first and third perforation pattern I respectively. III the other tracks.

Another design principle of a humidifier according to the invention is in 6a shown. The humidifier plate shown there is constructed in three layers and consists of the tracks 10 . 30 and 50 , The two tracks 10 and 50 have a channel-shaped second perforation pattern II immediately following the first perforation pattern I connected, ie with the port openings 11 respectively. 51 is in fluid communication. These channels of the second perforation pattern II All end in the area where in the first and third lane 10 . 50 no first perforation pattern I is formed, but in the middle lane 30 an enlarged passage opening 34 is available. Thus, all channels of this train are available 10 respectively. 50 with a respective flow opening of the middle track 30 also at the end of the channels in fluidic communication. Thus, for example, fluids may enter the first perforation pattern of the first web 10 over the port opening 11 be initiated and across the areas II-34 with the other trains 30 and 50 over the respective flow openings 34 enter into fluidic communication. That in the tracks 10 and 50 introduced fluid distribution pattern can be introduced via simple punching processes, for example via role-to-roll processes in the respective tracks.

An alternative embodiment of this constructive concept is in 6b shown essentially on 6a based. Again, the outer tracks shown there 10 and 50 a second fluid distribution pattern II on, wherein the channels of this fluid distribution pattern also represent recesses in the respective tracks. However, these webs do not have separate port openings, ie no separate first fluid distribution pattern. The possibility of communication between the webs is only guaranteed by the fact that the channels begin or end at one point, at the one in the middle web 30 a respective passage opening 34 is present, which is sufficiently dimensioned to each communication II-34 respectively. II'-34 to ensure. The two outer tracks 10 and 50 also have a third perforation pattern next to it III , ie passage openings 13 . 13 ' respectively. 53 and 53 ' on. As well as in 6a the humidifier plate shown there is bipolar after lamination of the individual tracks.

7a shows another variation of the previously mentioned in 6b illustrated concept, here are analogous to, for example 1b the respective outer tracks 10 respectively. 50 around tracks 70 . 80 complements the gas diffusion layer 75 exhibit. 70 and 80 form frames. All versions too 7a are identical to those already too 6b statements made, for the sake of clarity, the same reference numerals are not listed again in all places.

7b shows a variation of in 7a illustrated concept. Here, another segment of the stack stacking units in succession is shown, here is a membrane 60 arranged in the center of the segment shown, which is selectively permeable to water or water vapor, for example. On both sides are in frame 70 . 80 collected gas diffusion layers 75 arranged. The extent of the membrane 60 corresponds essentially to the extent of the gas diffusion layers 75 , During lamination, the membrane is sandwiched between the gas diffusion layers and gas-tightly connected to the two frames. Adjacent to the gas diffusion layers are two further tracks 10 . 50 shown that essentially the traces 10 . 50 of the 7a correspond. The main difference between 7a and 7b is that in 7a the train 30 the inlet and outlet of the operating gases on the surface of the web 10 about the additional with II-34 marked openings 34 and the inlet and outlet of the operating gases on the surface of the web 50 about the additional with II'-34 marked openings 34 done while in 7b The frames 70 respectively. 80 enlarged openings 41 and 42 respectively. 21 . 22 have the inlet and outlet of the operating gases on the visible surface of the web 10 containing humidifier and on the hidden surface of the web 50 allow humidifier plate containing.

7c shows one in an analogous way 7a Comparable embodiment of a humidifier according to the invention. Instead of in 7a contained tracks 20 and 40 For example, this embodiment includes webs as they already are 1 have been described (there are these tracks with reference numerals 20 described). The communication between the perforation patterns I and II takes place via the GDL 75 , For example, over the area highlighted by the dot-dashed frame I - II ,

8th shows an exemplary embodiment of a humidifier according to the invention in sectional images. Representation a) shows a plan view of the Befeuchterplatte, representation b) several sections along the sectional lines AA, BB, CC and DD shown in view a). c) shows corresponding sections along the sectional lines EE, FF, GG and HH shown in illustration a).

The in 8th shown detail of a Befeuchterplatte in this case has three tracks, which in representation b) with reference numerals 10 . 20 and 50 are designated. All of the tracks 10 . 20 and 50 have a first and third perforation pattern I and III on, that the port openings 11 . 31 or passage openings 13 . 33 represents. The respective port openings of the first perforation pattern I are in the first lane 10 (Reference 11 ), in the second lane 20 (Reference 21 ) as well as in the third track 50 (Reference 51 ) and lie congruently one above the other. The port opening 21 the second track 20 has rectangular recesses which communicate the first perforation pattern I with the second perforation pattern II allow, this is in the representations a) and b) with reference numerals I - II marked. In the respective tracks 10 . 20 and 50 are now staggered offset rectangular recesses, which in superimposition of the individual webs 10 . 20 and 50 give the complete fluid distribution pattern. The recesses in the tracks 10 . 20 and 50 are each offset in the longitudinal direction (ie in illustration a) and b) from left to right) and partially overlap. As a result, a fluidic communication among the individual webs 10 . 20 and 50 possible. The individual offset recesses are recognizable, for example, in illustration a) and, in particular in illustration b), section BB can be clearly seen. The first train 10 has recesses 10-1 . 10-2 . 10-3 respectively. 10-4 on, the correspondingly offset recesses are in the second path 20 With 20-1 . 20-2 . 20-3 . 20-4 and 20-5 specified. In the third lane 50 are again recesses that offset the second lane 20 are arranged (these are the recesses 50-1 to 50-4 ) contain. The train 10 is identically designed as a train 50 , When the three webs are laminated on one another, flow possibilities are created for a fluid that flows through the port opening 11 over the first perforation pattern I is placed in the humidifier plate. A distribution of the fluid on all the web-shaped recesses, ie also in the recesses, not directly to the port opening 11 can be connected, over the level 20 respectively.

9 shows a schematic view of a finished laminated humidifier, the first perforation pattern I , a second perforation pattern II and a third perforation pattern III includes. The plate is designed with five layers and can be designed, for example, as in 4a shown. In particular, it should be noted that the second perforation pattern II , which forms the fluid distribution field, is only shown schematically, this is symbolized by the oval, exposed surface in the middle of the humidifier. The structure over five tracks is indicated by the corresponding reference numerals ( 10 + 20 . 30 and 40 + 50 ) symbolically indicated. The structure can, for example, as in 4a be designed in this case, an identical fluid distribution field on the front and the back of in 9 comprises fluid distribution plate shown. Also on the in 9 not shown back is thus a supply of the fluid distribution field through the second perforation pattern II is formed, over the port openings 11 respectively. 12 possible while the third perforation pattern III ie the flow openings 13 and 13 ' do not allow communication with the Fluid Distribution Panel, either on the front or on the back of this panel. It is therefore a monopolar plate.

10 indicates a mounting situation of in 9 illustrated principle in the form of an exploded view on; as in 9 are the humidifier plates, here with 100 and 300 referred to, also monopolar trained. The humidifier plates 100 . 300 are thus formed differently among each other. The middle position 200 is here as a membrane composite formed having two GDLs, of which only the viewer facing GDL 202 visible from a frame 201 is enclosed. The actual membrane lies between the two GDLs. The GDL 202 is formed in particular in the area in which in this situation 200 framing humidifier plates 100 and 300 on the surface facing the membrane composite, the respective here different second perforation pattern, which forms the fluid distribution structure, is formed. The humidifier plates 100 and 300 may be formed in particular two-ply, ie be formed in each case of two webs. In this case, the embodiment then essentially corresponds to those in FIG 1 respectively. 4a illustrated embodiments. Now, for example, the front and back formed fluid distribution pattern of the humidifier 100 supplied via the port openings C and B, so this fluid passes through the corresponding port openings of the middle layer 200 or the third layer, ie the humidifier plate 300 through, without leaving the port openings B and C there. The via the port openings A and D through the first humidifier 100 however, fluid passing through is in the rear humidifier plate 300 formed fluid distribution pattern on both surfaces of the humidifier plate 300 in fluidic communication.

11 shows a humidifier module according to the present invention. The humidifier module 1 includes a variety of humidifier plates 100 . 300 as described above. The humidifier plates are inside the humidifier module 1 as explained with reference to the preceding figure, monopolar oriented, ie on a first membrane composite 200 follows on one of its two surfaces a first humidifier plate 100 , on whose two surfaces moist gas is distributed. On the opposite surface of the first humidifier plate 100 followed by a second membrane composite, in turn, a second humidifier plate 300 follows, which distributes dry, to be humidified gas on both surfaces. The humidifier module is made of end plates 9 and 9 ' bordered, with the end plate shown in the foreground 9 Port openings A to D and thus, for example, the structure of 3 can correspond. Alternatively to the in 3 shown multilayer structure of only the port having portion of the end plate, as in 3 from the layers 30 . 30 ' and 30 '' is formed, a thicker, non-flexible plastic plate or aluminum plate could be used. For example, a moist gas to be dried can be flowed in via the port opening A, and the gas dried accordingly after passing through the humidifier module is then removed from the port D. A dry gas to be moistened can be supplied to the humidifier module via port B, for example, and port C can be taken out as humidified gas. The end plate facing away from the viewer 9 ' has no openings open to the outside, but serves only as in 2 shown in the layer structure, the diversion of the gases. Alternatively, openings which can be connected to the outside on both end plates could also be formed.

In 12 is a schematic diagram of in 11 shown humidifier module shown. This humidifier module is in 12 represented by reference H. S describes a fuel cell stack that is to be supplied with a moistened operating medium. K is a storage vessel for the operating medium for the fuel cell stack S is called. The designated H humidifier module already has this in 11 shown operating principle and includes the inlet ports A to D. Dry, to be humidified operating medium is supplied via the port B to the humidifier module and removed at C as humidified medium and fed to the fuel cell stack S. The fuel cell stack S generates humidified exhaust gas, which can be supplied to the humidifier module as a moist medium to be drained at A again. Due to the countercurrent principle, an exchange of moisture takes place between the exhaust gas from the fuel cell stack S and the operating medium to be humidified. The dehumidified exhaust gas from the fuel cell stack S is removed from the humidifier module at D again.

In 13 to 15 Various process guides are shown to produce a humidifier plate according to the present invention. Shown is, for example, the production of a three-layer humidifier plate from three webs 10 . 20 and 30 , The railways 10 . 20 and 30 can be formed from a continuous material, such as plastic films, which are wound on respective rollers R1 to R3. The respective perforation patterns I - III can thereby by means of punching processes, for example via rollers in the respective tracks 10 to 30 be introduced.

In 13 become the three tracks 10 . 20 . 30 introduced by rollers R1 to R3 and applied smoothly and tightly to each other by means of the first two pairs of guide rollers FW. The station HP serves, for example, the section-wise hot pressing of the three webs 10 to 30 together. Station L1 represents the first laser station, which also connects the three tracks in sections 10 to 30 serves each other. The stations HP and L1 can be used in addition to or as an alternative to each other. In the former case, different sections of the film composite are connected by both stations. The station L2 also represents a laser station, but serves not to connect the tracks, but the Außenrandbeschnitt the film composite, so that finished humidifier arise, which are stacked on the worktable AT to a stack ST, the role AR performs the waste continuously ,

During the roll-to-roll process in 13a is carried out by means of two punching rollers SW1, SW2, in which therefore from both sides continuously the desired perforation pattern in the respective web 10 . 20 . 30 The roll-to-roll process becomes in 13b guided by a punching roller SW and a counter roller GW. The contours are thus introduced exclusively by the punching roller SW, the unstructured counter-roller, which may consist not only of metal, but for example also of rubber, serves only as an anvil.

14 shows an alternative embodiment of this roll-to-roll process, wherein the supply of the webs 10 . 20 . 30 and the production of perforation patterns as in 13b he follows. After merging the three tracks 10 - 30 via the first pair of guide rollers FW by means of the roller pair RV, the edge seal, in the present example to connect the three webs 10 to 30 is sufficient, the station shown on the right SP represents a punch press, by means of the edge trimming is done, the humidifier plate is thus cut free. The removal of the waste can be done as in the previous examples, but will not be considered here. If the punching press SP is used as a hot press, this can at the same time take over the edge seal, so that the station RV can also be omitted.

15 corresponds to the roller pair RV exactly the structure 14 However, this is followed by a first laser station L1 for the outer edge trimming. From the laser station L1, the finished humidifier plates are removed by means of a gripper GR and converted to another workstation with a work table marked AT. The blend becomes comparable 13 fed to a waste roll AR. On the workstation on the extreme right, the humidifier plates are connected to other plates, for example membrane composite plates.

The basic sequence according to 13 with direct bonding of the finished humidifier plates with one another, it is particularly preferred if the membrane composites etc. are also integrated as flexible films in the film composite, the sequence according to FIG 15 is advantageous, however, when the membrane composite plates are supplied as separate components.

Claims (25)

Humidifier plate for a humidifier module for humidifying operating gases for fuel cells, comprising at least two tracks ( 10 . 20 ) of a flexible material, each having at least one first perforation pattern ( I ), each having at least one port opening ( 11 . 21 ) for an inlet of a fluid and at least one port opening ( 12 . 22 ) for an outlet of a fluid, at least one second perforation pattern ( II ), each comprising a partial fluid distribution pattern, wherein at least in one lane ( 10 . 20 ) of the flexible material, the first perforation pattern ( I ) with the second perforation pattern ( II ) at least partially into fluidic communication ( I - II ) and a third perforation pattern ( III ), the at least two flow openings ( 13 . 13 ' . 23 . 23 ' ), which in each individual lane neither with the first ( I ) nor the second perforation pattern ( II ) are in fluidic communication, the at least two tracks ( 10 . 20 ) of the flexible material are arranged on top of each other so that in all tracks ( 10 . 20 ) between each other the at least one port opening ( 11 . 21 ) for an inlet of a fluid and in each case the at least one port opening ( 12 . 22 ) for an outlet of a fluid of the first perforation pattern ( I ) is at least partially in fluid communication with each other, whereby at least one inlet port of the composite of at least two webs ( 10 . 20 ) and at least one outlet port of the composite of the at least two webs ( 10 . 20 ) and in all lanes ( 10 . 20 ) in each case in pairs the flow openings ( 13 . 13 ' . 23 . 23 ' ) of the third perforation pattern ( III ) are at least partially in fluid communication with each other, so that at least two flow ports of the composite of at least two webs ( 10 . 20 ) are formed; and in pairs in each case two directly applied webs ( 10 . 20 ) of the flexible material in each case the at least one second perforation pattern ( II ) a first flexible web ( 10 ) at least in regions, in each case with the at least one second perforation pattern ( II ) of the second, immediately on the first lane ( 10 ) applied web ( 20 ) is at least partially in fluidic communication, so that the partial fluid distribution pattern in the respective directly applied webs ( 10 . 20 ) to a continuous fluid distribution pattern, via which a fluidic communication between the at least one inlet port and the at least one outlet port is ensured, wherein the at least two mutually applied webs ( 10 . 20 ) of the flexible material are cohesively, adhesively, materially and / or non-positively connected to each other. Humidifier according to claim 1, characterized in that at least 2, preferably up to 50 webs, preferably 2 to 25 webs, more preferably 2 to 5 webs, in particular 2 or 3 webs of the flexible material are applied to each other and interconnected. Humidifier plate according to one of the preceding claims, characterized in that the second perforation pattern ( II ) in each individual track ( 10 . 20 ) of the flexible material is formed by a plurality of passage openings, wherein pairs in each case two directly applied webs ( 10 . 20 ) of the flexible material in each case in a first path ( 10 ) and a second web ( 20 ) the passage openings are offset from one another and partially overlap. Humidifying plate according to one of the preceding claims, comprising at least one additional track ( 30 ) of a flexible material based on a 20 ) of the at least two tracks ( 10 . 20 ) of the flexible material, and with the ( 20 ) of the two tracks ( 10 . 20 ) to which the additional track ( 30 ) is cohesive, adhesive, material and / or non-positively connected. Humidifier plate according to the preceding claim, characterized in that in the at least one additional track ( 30 ) a perforation pattern with openings ( 31 . 32 . 33 . 33 ' ), the first ( I ) and third perforation pattern ( III ) of the at least two tracks ( 10 . 20 ) is at least partially overlapped, so that one or more passage openings ( 31 ) with the inlet port, one or more passages ( 32 ) with the outlet port and passages ( 33 . 33 ' ) with the flow ports of the composite of at least two webs ( 10 . 20 ) are at least partially in fluidic communication. Humidifier according to the preceding claim, comprising at least two further tracks ( 40 . 50 ) of a flexible material, each having at least one first perforation pattern ( I ' ), each having at least one port opening ( 41 . 51 ) for an inlet of a fluid and at least one port opening ( 42 . 52 ) for an outlet of a fluid, at least one second perforation pattern ( II ' ), each comprising a partial fluid distribution pattern, wherein at least in one of the at least two further tracks ( 40 . 50 ) of the flexible material, the first perforation pattern ( I ' ) with the second perforation pattern ( II ' ) at least partially into fluidic communication ( I ' - II ' ) and a third perforation pattern ( III ' ), the at least two flow openings ( 43 . 43 ' . 53 . 53 ' ) in each of the at least two further tracks ( 40 . 50 ) neither with the first ( I ' ) nor the second perforation pattern ( II ' ) are in fluidic communication, the at least two further tracks ( 40 . 50 ) of the flexible material on the at least two tracks ( 10 . 20 ) facing away from the at least one further web ( 30 ) are applied so that in the at least two further tracks ( 40 . 50 ) between each other the at least one port opening ( 41 . 51 ) for an inlet of a fluid of the first ( I ' ) Perforation pattern at least partially in fluid communication with each other, whereby at least one inlet port of the composite of the at least two further tracks ( 40 . 50 ) is formed and in each case the at least one port opening ( 42 . 52 ) for an outlet of a fluid of the first ( I ' ) Perforation pattern at least partially in fluid communication with each other, whereby at least one outlet port of the composite of the at least two further tracks ( 40 . 50 ) is formed and in all other tracks ( 40 . 50 ) in each case in pairs the flow openings ( 43 . 43 ' . 53 . 53 ' ) of the third perforation pattern ( III ' ) are at least partially in fluid communication with each other, so that at least two flow ports of the composite of at least two further tracks ( 40 . 50 ), one ( 40 ) of the at least two further tracks ( 40 . 50 ) so on the at least one additional track ( 30 ) is applied, that the at least one inlet port of the composite of at least two further tracks ( 40 . 50 ) with one or more passage openings ( 31 ) of the at least one additional track ( 30 ), the at least one outlet port of the composite of the at least two further tracks ( 40 . 50 ) with one or more passage openings ( 32 ) of the at least one additional track ( 30 ) and the flow ports of the composite of the at least two further webs ( 40 . 50 ) each with one or more passage openings ( 33 . 33 ' ) of the at least one additional web are at least partially in fluidic communication, wherein the at least two further mutually applied webs ( 40 . 50 ) of the flexible material with each other and with the at least one additional web ( 30 ) are cohesive, adhesive, material and / or non-positively connected. A humidifier plate according to any one of claims 1 to 5, comprising at least two further tracks ( 40 . 50 ) of a flexible material, each having at least one first perforation pattern ( I ' ), each having at least one port opening ( 41 . 51 ) for an inlet of a fluid and at least one port opening ( 42 . 52 ) for an outlet of a fluid, at least one second perforation pattern ( II ' ), each comprising a partial fluid distribution pattern, wherein at least in one of the at least two further tracks ( 40 . 50 ) of the flexible material, the first perforation pattern ( I ' ) with the second perforation pattern ( II ' ) at least partially into fluidic communication ( I ' - II ' ) and a third perforation pattern ( III ' ), the at least two flow openings ( 43 . 43 ' . 53 . 53 ' ) in each of the at least two further tracks ( 40 . 50 ) neither with the first ( I ' ) nor the second perforation pattern ( II ' ) are in fluidic communication, the at least two further tracks ( 40 . 50 ) of the flexible material on the at least two tracks ( 10 . 20 ) facing away from the at least one further web ( 30 ) are applied so that in the at least two further tracks ( 40 . 50 ) between each other the at least one port opening ( 41 . 51 ) for an inlet of a fluid of the first ( I ' ) Perforation pattern at least partially in fluid communication with each other, whereby at least one inlet port of the composite of the at least two further tracks ( 40 . 50 ) is formed, and in each case the at least one port opening ( 42 . 52 ) for an outlet of a fluid of the first ( I ' ) Perforation pattern at least partially in fluid communication with each other, whereby at least one outlet port of the composite of the at least two further tracks ( 40 . 50 ) is formed and in all other tracks ( 40 . 50 ) in each case in pairs the flow openings ( 43 . 43 ' . 53 . 53 ' ) of the third perforation pattern ( III ' ) are at least partially in fluid communication with each other, so that at least two flow ports of the composite of the at least two further tracks ( 40 . 50 ), one ( 40 ) of the at least two further tracks ( 40 . 50 ) so on the at least one additional track ( 30 ), that the at least one inlet port and the at least one outlet port of the composite of the at least two further tracks ( 40 . 50 ) each with one or more passage openings ( 34 ) of the at least one additional track ( 30 ) and in each case at least one of the throughflow ports of the network of the at least two further tracks ( 40 . 50 ) with one or more passage openings ( 34 ) of the at least one additional track ( 30 ) are at least partially in fluidic communication, wherein the at least two further mutually applied webs ( 40 . 50 ) of the flexible material with each other and with the at least one additional web ( 30 ) cohesive, adhesive, material and / or non-positively connected. Humidifier plate comprising at least three webs ( 10 . 30 . 50 ) of a flexible material, wherein in the at least one first web ( 10 ) and the at least one third track ( 50 ) of the flexible material in each case at least one first perforation pattern ( I ), each having at least one port opening ( 11 . 51 ) for an inlet of a fluid is introduced into the at least one first web ( 10 ) and the at least one third track ( 50 ) of the flexible material, in each case at least one second perforation pattern ( II ), each comprising a fluid distribution pattern, wherein in the at least one first path ( 10 ) and the at least one third track ( 50 ) of the flexible material, the first perforation pattern ( I ) with the second perforation pattern ( II ) at least partially into fluidic communication ( I - II ) into which at least one first web ( 10 ) and the at least one third track ( 50 ) of the flexible material each have a third perforation pattern ( III ) is introduced, the at least two flow openings ( 14 . 54 ) within the respective track ( 10 . 50 ) neither with the first ( I ) nor the second perforation pattern ( II ) are in fluidic communication into which at least one second path ( 30 ) of the flexible material at least four passages ( 34 ) having at least three tracks ( 10 . 30 . 50 ) of the flexible material are brought together so that the at least one second web ( 30 ) between the at least one first web ( 10 ) and at least one third track ( 50 ), wherein in each case the at least one port opening ( 11 . 51 ) of the first perforation pattern ( I ) of the at least one first web ( 10 ) and the at least one third track ( 50 ) at least partially in fluidic communication with in each case one passage opening ( 34 ) of the at least one second web ( 30 ), in each case the second perforation pattern ( II ) of the at least one first web ( 10 ) and the at least one third track ( 50 ) at least partially in fluidic communication ( II-34 ) each having a passage opening ( 34 ) of the at least one second web ( 30 ) and in each case the at least two passage openings of the third perforation pattern ( III ) of the at least one first web ( 10 ) and the at least one third track ( 50 ) with the respective passage openings ( 34 ) of the at least one second web ( 30 ) is at least partially in fluidic communication, as well as the at least three mutually applied webs ( 10 . 30 . 50 ) of the flexible material are cohesively, adhesively, materially and / or non-positively connected. Humidifier plate comprising at least three webs ( 10 . 30 . 50 ) of a flexible material, wherein in the at least one first web ( 10 ) and the at least one third track ( 50 ) of the flexible material, in each case at least one second perforation pattern ( II ), each comprising a fluid distribution pattern into which at least one first web ( 10 ) and the at least one third track ( 50 ) of the flexible material each have a third perforation pattern ( III ) is introduced, the at least two flow openings ( 14 . 54 ) within the respective track ( 10 . 50 ) not with the second perforation pattern ( II ) are in fluidic communication into which at least one second path ( 30 ) of the flexible material at least four passages ( 34 ) having at least three tracks ( 10 . 30 . 50 ) of the flexible material are brought together so that the at least one second web ( 30 ) between the at least one first web ( 10 ) and at least one third track ( 50 ), wherein in each case the second perforation pattern ( II ) of the at least one first web ( 10 ) and the at least one third track ( 50 ) at least partially in fluidic communication ( II-34 ) each having a passage opening ( 34 ) of the at least one second web ( 30 ) and in each case the at least two passage openings of the third perforation pattern ( III ) of the at least one first web ( 10 ) and the at least one third track ( 50 ) with the respective passage openings ( 34 ) of the at least one second web ( 30 ) are at least partially in fluidic communication, as well as the at least three mutually applied webs ( 10 . 30 . 50 ) of the flexible material are cohesively, adhesively, materially and / or non-positively connected. Humidifier plate according to one of the two preceding claims, characterized in that the tracks ( 10 . 30 . 50 ) are arranged so that the humidifier plate is a bipolar or monopolar humidifier plate. Humidifier plate according to one of the preceding claims, characterized in that each web ( 10 . 20 . 30 . 40 . 50 ) have substantially the same or the same outer dimensions and are applied substantially congruent or congruent to each other. Humidifier plate according to one of the preceding claims, characterized in that the tracks ( 10 . 20 . 30 . 40 . 50 ) were applied to each other via a roll-to-roll process, the individual webs ( 10 . 20 . 30 . 40 . 50 ) were continuously applied to each other and connected and after the connection of the individual humidifier plates were cut to length. Humidifier plate according to one of the preceding claims, characterized in that the perforation patterns in the individual webs ( 10 . 20 . 30 . 40 . 50 ) were produced by means of punching, in particular by means of a roller punch, cut, or by a laser cutting process. Humidifier plate according to one of the preceding claims, characterized in that the respective track ( 10 . 20 . 30 . 40 . 50 ) of the flexible material is in each case a film, preferably with a thickness of 0.05 to 10.0 mm, more preferably of 0.1 to 1.0 mm, in particular of 0.2 to 0.6 mm. Humidifier according to one of the preceding claims, characterized by a total thickness of 0.5 to 50 mm, preferably 1.0 to 20 mm, more preferably from 1.2 to 5.0 mm, in particular 1.5 to 2 mm. Humidifier according to one of the preceding claims, characterized in that the flexible material is selected from the group consisting of thermoplastics, preferably polyesters, such as. PET, PEN, PBT; Polyolefins, such as. Eg PE, PP; Polyamides, PPA; PEEK; PSU; PEI; PAI; PPS and blends or combinations thereof is formed. Humidifier plate according to one of the preceding claims, characterized in that the tracks ( 10 . 20 . 30 . 40 . 50 ) of the flexible material by means of gluing, thermoforming, by dissolving and then pressing and / or by pressing the webs ( 10 . 20 . 30 . 40 . 50 ) of the flexible material. Humidifier according to the preceding claim, characterized in that the adhesive bond by means of 2-K adhesives, in particular by Epoxidharzklebern, silicone adhesives, polyurethane adhesives, phenolic adhesives, melamine resin adhesives, or by means of pressure-sensitive adhesives, in particular by means of solvent-based pressure sensitive adhesives, Disperionshaftklebern, hotmelt adhesives, such. As silicone, polyacrylate, ethylene-vinyl acetate and / or natural rubber based pressure-sensitive adhesives took place. Humidifier according to claim 17, characterized in that for solubilizing solvents selected from the group consisting of ketones, esters, aliphatic and / or aromatic hydrocarbons were used. Humidifier according to claim 17, characterized in that the Thermofüge was carried out at temperatures of 150 to 350 ° C, preferably from 200 to 280 ° C, more preferably at most 50 ° C above the melting point of the flexible material. A humidifier module for humidifying operating gases for fuel cells, comprising at least two stacked humidifier plates according to one of the preceding claims, which are arranged in pairs by at least one membrane permeable at least in the region of the second perforation pattern between the two humidifier plates forming the pair ( 60 ) are separated from each other. Humidifier module according to the preceding claim, comprising 2 to 100 humidifier plates. Humidifier module according to one of the two preceding claims, characterized in that between the at least one membrane ( 60 ) and one or both of the membrane ( 60 ) arranged a humidifier at least in the region of the second perforation pattern of the Befeuchterplatten a gas diffusion layer, which as a separate component or as part of the membrane ( 6 ) may be formed. Humidifier module according to the preceding claim, characterized in that the gas diffusion layer comprises an active gas diffusion layer ( 75 ) surrounding frame ( 70 . 80 ), wherein preferably gas diffusion layer ( 75 ) and frames ( 70 . 80 ) are flexible. Humidifier module according to one of claims 21 to 24, characterized in that in each case the pair of humidifier plates, between which the at least one membrane ( 60 ), are arranged in the DC principle, countercurrent principle or in cross-flow principle to each other.

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