WO2016096385A1 - Connecteur enfichable électrique pourvu d'un moyen d'encliquetage destiné à la mise en contact d'un empilement de plaques bipolaires pour pile à combustible et empilement de plaques bipolaires - Google Patents

Connecteur enfichable électrique pourvu d'un moyen d'encliquetage destiné à la mise en contact d'un empilement de plaques bipolaires pour pile à combustible et empilement de plaques bipolaires Download PDF

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Publication number
WO2016096385A1
WO2016096385A1 PCT/EP2015/078065 EP2015078065W WO2016096385A1 WO 2016096385 A1 WO2016096385 A1 WO 2016096385A1 EP 2015078065 W EP2015078065 W EP 2015078065W WO 2016096385 A1 WO2016096385 A1 WO 2016096385A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
contact
bipolar plate
height direction
latching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2015/078065
Other languages
German (de)
English (en)
Inventor
Sebastian Voigt
Matthias Reckers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkswagen AG
Original Assignee
Volkswagen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkswagen AG filed Critical Volkswagen AG
Publication of WO2016096385A1 publication Critical patent/WO2016096385A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing
    • H01R13/6273—Latching means integral with the housing comprising two latching arms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0297—Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2404—Processes or apparatus for grouping fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/26—Pin or blade contacts for sliding co-operation on one side only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the invention relates to an electrical connector for contacting a
  • Bipolar plate stack for a fuel cell with a plug body, in which a plurality of opening in a plug-in contact chambers are provided, wherein in the contact chambers in each case a plug-in direction on a bipolar plate of Bipolarplattenstapels attachable contact element is arranged, and wherein the contact chambers extending in a direction transverse to the direction of insertion Height direction of the connector are arranged spaced from each other.
  • the invention relates to a bipolar plate stack for a fuel cell, with at least two stacked in a height direction and each having a recess for at least partially receiving a connector having bipolar plates.
  • Bipolar plates are used to conduct operating media to fuel cell electrodes. In order to attach the connector to the bipolar plate stack, they are offset with each other
  • the bipolar plate stack has to be assembled particularly carefully with regard to the connector.
  • the invention is therefore based on the object to provide an electrical connector and a Bipolarplattenstapel that allow a simple-to-manufacture connector between the connector and the Bipolarplattenstapel, the mounting of the bipolar plates to Bipolarplattenstapel is as simple as possible and a permanent
  • this object is achieved in that between the contact chambers an empty receptacle is provided for a bipolar plate.
  • the object is achieved in that for at least partially receiving a connector, in particular a connector according to the invention, the recesses in the height direction are aligned.
  • Bipolar plates of the bipolar plate stack is aligned, this can be easily recognized, as if one of the bipolar plates with the mutually offset recesses is not properly arranged in Bipolarplattenstapel.
  • Width direction is broken by an opening in the insertion direction receiving slot.
  • the receiving slot may be formed for at least partially receiving one of the bipolar plates, wherein the empty receptacle has no contact element for contacting the one of the bipolar plates.
  • the bipolar plate can thus extend through the receiving slot into the connector and in particular into the empty receptacle.
  • the empty receptacle is preferably dimensioned smaller in the height direction of the connector than the contact receptacles, since the empty receptacles need only accommodate the bipolar plate, but not additionally the contact element.
  • the connector can be constructed to save space in the height direction and can also contact closely spaced bipolar plates.
  • the receiving slot in the height direction may be formed smaller than the empty space.
  • the height of the receiving slot parallel to the height direction corresponds to the height of the empty receptacle.
  • the laterally opening in the width direction with the receiving slot blank receptacle may have a running in the plug and the height direction cross-section, which in
  • At least one of the contact chambers may adjoin one of the side walls of the plug body, wherein the side wall is broken in the width direction by a further receiving slot opening in the plug-in direction and adjacent to the contact chamber.
  • the receiving slot may be formed smaller in the height direction than the
  • the receiving slot in the height direction may have a height corresponding to a height of the adjacent to the receiving slot contact chamber, so that the bipolar plate can be easily inserted into the contact chamber, without being jammed or jammed with the receiving slot.
  • the contact chambers may each adjoin different and in particular opposite side walls of the plug body, the side walls of each adjacent contact chamber may be provided with an opening in the insertion direction receiving slot, and wherein the receiving slot opens one of the contact chambers in the width direction.
  • the bipolar plates can each be supplied to one of the contact elements and for this purpose can be used in each case in one of the contact chambers, without the bipolar plates colliding with the side walls.
  • the contact elements can easily contact the recess flanking portions of each of the bipolar plates.
  • Side walls may for example run parallel to each other or away from each other and extend in particular parallel to the insertion direction and the height direction or parallel to the insertion direction and the width direction.
  • each of the blank receptacles adjacent to one of the side walls, wherein the receiving slot opens one of the empty slots in the width direction.
  • the plug may have a larger number of contact elements and in particular at least four contact elements.
  • a first group of contact elements can be found in the
  • Elevation direction along a common first plane and a second group of the contact elements in the height direction along a second common plane are arranged one behind the other, wherein the planes in the width direction are spaced from each other, and wherein the contact elements of each of the groups in the height direction preferably a predetermined distance to each other.
  • the contact elements of one of the groups may be oriented to contact each other of the bipolar plates stacked on top of each other in the height direction.
  • the contact elements of the other group contact the between these bipolar plates arranged bipolar plates when the connector is placed on the Bipolarplattenstapel. So that the contact elements of the individual groups can alternately contact the bipolar plates stacked on top of one another, the groups are preferably offset in the height direction by half the distance of the contact elements of each of the groups from one another.
  • each of the groups can each be arranged in the same plane empty shot.
  • the blank receptacle receives a bipolar plate, which should not be contacted by the contact elements of the same group.
  • the contact elements of one of the groups can contact every other of the bipolar plates, wherein between each of the contacted bipolar plates one of the empty receptacles is arranged, which receives a not contacted by this group bipolar plate and electrically isolated from the contact elements of the same group.
  • the other of the groups can readily contact the remaining bipolar plates, with the
  • the empty images arranged in one of the planes preferably have an offset in the height direction to the empty images arranged in the other of the planes so that the empty images of one of the groups can receive other bipolar plates than the empty images of the other of the groups.
  • the empty images arranged in one of the planes preferably have an offset in the height direction to the empty images arranged in the other of the planes so that the empty images of one of the groups can receive other bipolar plates than the empty images of the other of the groups.
  • the contact elements and thus the contact chambers of the one of the groups not only in the width direction pointing transversely to the plugging direction, but also in the height direction of the pointing transversely to the plugging direction and to the width direction
  • the connector may include a latching device for holding the connector on
  • Bipolarplattenstapel having, wherein the latching device is preferably arranged in the width direction between the contact chambers and / or the empty receptacles. This avoids that the latching device projects laterally from the plug body and a
  • Bipolar plate stack collides, the connector with a preferred in the
  • the latching device is therefore less or even not at all from the plug body, so that the latching device can collide with a low probability or not at all with the Bipolarplattenstapel.
  • the latching device may have two latching arms arranged one behind the other transversely to the plugging direction and the height direction, the free ends of which point in the plugging direction, wherein the latching arms are provided with one latching element on their sides facing away from each other.
  • Such locking arms can readily interact with the Bipolarplattenstapel when mating the connector and the Bipolarplattenstapel.
  • the latching arms in the height direction may have a greater extent than the empty or the contact receptacles, so that the latching arms, also referred to as latching plates, prevent tilting of at least partially plugged together with the bipolar plate stack connector to the insertion direction and relative to Bipolarplattenstapel.
  • the height of the latching arms can substantially correspond to the height of the recess and / or the height of the plug body.
  • the locking arms can thus not only secure the connector between the connector and the Bipolarplattenstapel against accidental release, but rather even the connector at
  • the recesses have, at least in sections, a width parallel to the width direction, which preferably essentially corresponds to the spacing of sides of the latching arms facing away from one another.
  • the contact chambers can lead the latching arms in the plugging direction at least in sections.
  • the recesses may each be flanked by a first and a second portion of the bipolar plate, wherein the first and the second portion are formed as latching portions, each having a latching element.
  • the latching sections of the first and the second Sections are preferably formed complementary to the respective latching element of the connector.
  • the latching elements of the latching device are designed as mutually extending latching projections.
  • the latching sections of the first and second sections can thus be formed as locking recesses extending away from each other in a direction parallel to the width direction.
  • the latching sections of the first and the second sections can adjoin holding projections formed by the bipolar plates and projecting toward one another, wherein the latching sections of the respective bipolar plate have a greater distance from one another parallel to the bipolar plate than the holding projections.
  • the latching elements of the latching device may each have an inclined in the plugging direction holding surface at their opposite the insertion direction facing ends. So that
  • the support surface preferably has an angle to the direction of insertion, which is smaller than 90 degrees.
  • the angle may be less than 45 degrees and, for example, 30 degrees.
  • the latching sections each have a holding surface inclined in the plugging direction at their ends pointing in the plugging direction, the holding surface for the plugging direction having an angle of less than 90 degrees, for example, the plug connection between the plug connector and the bipolar plate stack can be easily released without the
  • Detent elements of the connector thereby wear, for example, by abrasion strong.
  • the angle may be less than 45 degrees and, for example, 30 degrees.
  • the support surfaces can lie parallel to each other extending against each other.
  • the free end of the latching arms may be provided with obliquely to the direction of insertion and the width direction extending deflection surfaces, which prevent a collision and subsequent entanglement of the locking element with the counter-locking element, and facilitates the sliding of the locking element on the counter-locking element thereby.
  • Locking sections connect the contact portions of the bipolar plate for electrical contacting by the connector.
  • the shape of the bipolar plate with respect to known bipolar plates need not be further changed when the contact element is formed, for example, as a so-called spring contact.
  • One Spring contact has at least one and preferably two elastically deflectable connecting straps or tongues, the free ends of which point in the plugging direction and are deflectable away from one another transversely to the plugging direction. The contact element can thus be easily pushed onto the contact portion and contact this one-sided in the height direction or embrace two sides.
  • the contact sections of two bipolar plates in the width direction preferably project from a membrane-electrode arrangement arranged between the bipolar plates, so that two contact elements of one of the groups of contact elements successive in the height direction can each contact one of the projecting contact sections.
  • the recesses and the latching device are configured such that they jointly define a plug-in position of the connector relative to the bipolar plate stack, so that the contact elements can not mechanically contact the membrane-electrode unit and thereby damage it.
  • the individual bipolar plates of the bipolar plate stack can be positioned differently.
  • the bipolar plate stack may have expanded at a high operating temperature such that the bipolar plates are located differently than a lower operating temperature.
  • an opening of the receiving slot of the empty receptacle and / or of the contact receptacles pointing in the plugging direction can be funnel-shaped.
  • adjacent to the receiving slot portions of the side wall at least one Einfädelungsschräge and preferably two opposite and extending in the direction of insertion away from each other
  • An open end of the receiving slot pointing in the plug-in direction can at least partially lead the contact element in the plug-in direction in order to position the plug and the bipolar plate to be contacted relative to one another before the contact element makes contact with the bipolar plate.
  • the connector can identify a extending through the plug body along the height direction and at least one of the contact chambers cutting securing channel for receiving a contact fuse. If the contact element has a backup advance or backup return, which preferably extends parallel to the width direction, then the contact fuse inserted into the security channel can engage behind or engage in the backup forward or back-up recess and thus block a displacement of the contact element in the plug-in direction.
  • the safety channel can cut all contact chambers. If the two groups of contact elements and thus also the contact elements receiving contact chambers in the width direction but be so far apart that a formation of such a wide fuse channel would be unfavorable, the connector may alternatively have two fuse channels that intersect different groups of contact chambers.
  • the two fuse channels can be connected to each other by a receiving opening in the plug body.
  • the receiving opening can be formed as a recess opening in or against the height direction in the plug body, so that the contact securing element can also be inserted into the receiving opening at least in sections, whereby the dimensions of the plug connector do not increase or only slightly increase due to the contact safety.
  • the contact securing element is preferably formed at least partially complementary to the securing channel and may have a pin portion and a stop portion projecting transversely from the pin portion.
  • the securing element is preferably designed to be able to be handled in one piece and manufactured, for example, as an injection-molded part.
  • Stop section prevents the contact-securing element is inserted too deeply into the respective security channel and possibly slides through the securing channel.
  • the stopper portion offers the possibility of easy handling of the contact-securing element.
  • the contact-securing element can be formed with two pin sections, so that not two contact-securing elements need to be inserted individually into the two securing channels. This reduces the effort for securing the position of the contact elements.
  • the pin portions may be disposed at opposite ends of a stopper portion, the stopper portion being at least partially complementary for the securing channels interconnecting receiving opening formed and thus at least partially can be configured to be used in the receiving opening.
  • the pin portions are preferably arranged to extend parallel to one another and a gap between the pin portions is bridged by the stop portion.
  • the recesses of the bipolar plates stacked on one another are preferably aligned identically in a width direction of the bipolar plate stack pointing transversely to the plug-in direction and to the height direction, so that the recesses are aligned with one another in the height direction.
  • the connector can therefore have two groups of successive empty spaces in the height direction, wherein the latching device is arranged between the groups.
  • the empty images of one of the groups can be provided in alignment with each other in the height direction. Also the empty shots of the other of the groups can in the
  • the reason for the recess may be arranged between the latching device and a cavity arranged in the plug body, it being possible for the hollow space to extend through the plug body counter to the plugging direction. This will reduce the weight of the
  • the reason may be broken in the direction of insertion through openings, which make it possible to reach the latching arms, even if the connector with the
  • Bipolarplattenstapel is plugged together. If the connector has the cavity, the openings can open into the cavity counter to the direction of insertion. Even if the plug body does not have the cavity, the openings may be opposite to the
  • Plug direction completely extend through the plug body to the latching arms in the
  • the latching means is arranged in the width direction between the openings.
  • a grip element for example a trough or a projection
  • a handle element is provided on two mutually opposite sides.
  • the recess preferably has a cylindrical shape, adjacent to each of the bipolar plates along the width direction and opposite to the plugging direction.
  • the connector can be plugged together with a number of contact elements corresponding number of bipolar plates.
  • the connector may have up to 10, 50, 100, 200, 300, 400 or more contact elements.
  • Figure 1 shows an embodiment of a connector according to the invention in a perspective view
  • Figure 2 shows the connector of the embodiment of Figure 1 in one
  • Figure 3 shows an embodiment of a contact element of the invention
  • FIG. 4 a connector according to the invention with the connector and a
  • the plug body 2 is formed with a pointing in a direction of insertion S mating face 3, in which open a plurality of contact chambers 4 in the insertion direction S.
  • a contact element 5 is arranged, which is designed to be contacted in the insertion direction S with a bipolar plates of a bipolar plate stack of a fuel cell.
  • the contact chambers 4 extend against the insertion direction S preferably completely through the plug body 2 and open against the insertion direction S, for example, to connect the contact elements 5 with connecting cables can.
  • a direction transverse to the insertion direction S height direction H of the connector 1 more of the contact chambers 4 are arranged one behind the other.
  • the contact chambers 4 are divided into two groups 6, 7, wherein in the first group 6 in the embodiment of Figure 1 five contact chambers 4 in the height direction H are arranged one behind the other.
  • the contact chambers 4 of the first group 6 are preferably aligned with each other in the height direction H, so that the arranged in the contact chambers 4 contact elements 5 of the first group 6 are all arranged in the height direction H one behind the other.
  • Five further contact chambers 4 of the second group 7 of the connector 1 of the embodiment of Figure 1 are also aligned in the height direction H one behind the other, wherein the contact chambers 4 of the first group 6 and the contact chambers 4 of the second group 7 in a direction transverse to the insertion direction S and the height direction H facing width direction B of the connector 1 are spaced from each other.
  • the contact chambers 4 of each of the first and second groups 6, 7 are arranged at a distance 8 to the contact chamber 4 following in the height direction H, respectively.
  • the contact chambers 4 of the first group 6 are preferably offset from the contact chambers 4 of the second group 7 in the height direction H.
  • An offset 9 between the contact chambers 4 of the first group 6 and the second group 7 in the height direction H is preferably half of the distance eighth
  • an empty receptacle 10 is arranged in the height direction H between the contact chambers 4 of each of the groups 5, 6 is in each case an empty receptacle 10 is arranged.
  • the empty receptacles 10 have no electrical contact element and are preferably aligned with the contact chambers 10 of the respective group 6, 7.
  • the spacing of the empty receptacles 10 in each case one of the groups 6, 7 preferably corresponds to the distance 8 of the contact chambers of the respective group 6, 8 to each other.
  • An offset 9a of the empty receptacles 10 of one of the groups 6, 7 to the empty receptacles of the other of the groups 6, 7 preferably corresponds to the offset 9 of the contact chambers of the groups 6, 7.
  • the shelves 1 1 adjoin side walls 12, 13 of the plug body 2.
  • the side walls 12, 13 are formed parallel to the insertion direction S and the height direction H.
  • the plug body 2 Parallel to the insertion direction S and the width direction B, the plug body 2 has a bottom 14 and an upper side 15, which connect the side walls 12, 13 with each other.
  • each provided on one of the side walls 12, 13 shelves 1 1 are arranged with the distance 8 to each other and to the
  • the dividing trays 11 can have an increasing thickness or thickness 16 at their ends pointing in the direction of insertion S, counter to the direction of insertion S, and thus form threading bevels 17 for a bipolar plate.
  • Contact chambers 4 parallel to the height direction H delimiting shelves 1 1 can form a funnel-shaped in the direction of insertion S opening 18 of the respective contact chamber 4, so that the contact chamber 4 is guided and positioned at a plugging of the connector 1 in the insertion direction S on the bipolar plate 17 by the Einfädelschrägen can be.
  • Each of the contact chambers 4 may be formed with a funnel-shaped opening 18, so that bipolar plates, which are arranged outside a desired position, are securely contacted with the connector 1.
  • the adjoining one of the empty receptacles 10 sides of the shelves may be formed as Einfädelschrägen 17a, so that a parallel to the height direction H facing clear width W of the empty receptacles 10 decreases against the direction of insertion and the
  • Empty receptacles 10 are formed with a funnel-shaped opening 18a.
  • the side walls 12, 13 are preferably formed with a receiving slot 20 for at least partially receiving the bipolar plate.
  • the receiving slot 20 opens in the insertion direction S. Parallel to the width direction B, the receiving slot 20 extends completely through the respective side wall 12, 13, so that in the contact chamber 4 projecting bipolar plate parallel to the width direction B from the
  • the bipolar plate can be easily contacted with the connector 1, without the bipolar plate this must be provided with each insertable into one of the contact chambers 4 contact strip. Also the bipolar plate can be easily contacted with the connector 1, without the bipolar plate this must be provided with each insertable into one of the contact chambers 4 contact strip. Also the bipolar plate can be easily contacted with the connector 1, without the bipolar plate this must be provided with each insertable into one of the contact chambers 4 contact strip. Also the
  • Receiving slot 20 is provided with an opening in the direction of insertion S opening 18 ', which may be configured funnel-shaped.
  • the openings 18, 18 'and 18a, 18' are preferably identical, so that they can position the bipolar plate relative to the contact element 5 or the empty receptacle 10 when the connector 1 on the
  • the contact element 5 can, contrary to the insertion direction S behind at least one of
  • Openings 18, 18 ' may be arranged, so that the bipolar plate first reaches one of the openings 18, 18' in a plug-in operation and is pre-positioned there before the bipolar plate makes contact with the contact element 5.
  • all openings 18, 18 ', 18a end in the
  • Plug face 3 at a common and perpendicular to the insertion direction S extending Level, so that all openings 18, 18 ', 18a may be involved in the pre-positioning of the connector 1 to the bipolar plates. As a result, misfits and damage to the contact element 5 can be prevented.
  • the opposite to the insertion direction S facing ends 21 of the receiving slots 20 limit a depth of insertion of the bipolar plate in the contact chamber 4 and in the
  • Each of the contact chambers 4 and / or each of the empty receptacles 10 can adjoin one of the receiving slots 20, so that each of the contact chambers 4 and / or each of the empty receptacles 10 can be plugged onto a respective bipolar plate.
  • the plug connector 1 preferably has at least one latching device 22, which secures the plug connection against unintentional release.
  • the at least one latching device 22 is between the contact chambers 4 and / or the empty receptacles 10 of the groups 6, 7, for example, at least partially or even completely in a in
  • Plug body 2 is arranged.
  • the latching device 22 has two latching arms 23, whose opposite to the insertion direction S facing ends are fixed as fixed ends 24 at the one base 22b of the recess 22a.
  • opposite ends of the latching arms 23 are formed as free ends 25 which are elastically deflectable at least in or against the width direction B.
  • the free ends 25 have at least one obliquely to the insertion direction S and parallel to the height direction H extending threading surfaces 26, which prevents jamming of the latching device 22 to be contacted with the bipolar plate.
  • the free ends each have a threading surface 26, 27, wherein the threading surfaces 26, 27 facing away from each other and in the direction of insertion S are arranged to extend toward each other.
  • the threading surfaces 26, 27 can deflect the latching arm 23 in the direction of one another from the illustrated rest position during a plug-in operation.
  • the latching device 22 has, per latching arm 23, a latching element 29 which is designed to enter into a latching connection with a counter-latching element of the bipolar plate.
  • a latching element 29 of one of the latching arms 23 projecting parallel to the width direction B from the other of the latching arms 23 in the direction away from the plug body 2, so a latching projection be.
  • both latching elements 29 can project away from each other from the respective latching arm 23.
  • the latching arms 23 are preferably formed continuously in the height direction H, whereby they have a good mechanical stability to the height direction.
  • the latching arms 23 are formed, for example, as detent plates extending mainly in the plug-in direction S and the height direction H, which extend parallel to the height direction H along several
  • Contact chambers 4 and / or empty receptacles 10 may extend.
  • the locking elements 29 may each have a retaining bevel 30 which is tilted in the direction of insertion S.
  • the retaining slants have an acute angle with respect to the plug-in direction S, which makes it possible to release the plug connector 1 latched with the bipolar plate stack by pulling the plug connector 1 counter to the plugging direction S.
  • Figure 2 shows the connector 1 of the embodiment of Figure 1 in a front view opposite to the insertion direction F.
  • the base 22 b of the recess 22 a has openings 31 a, 31 b, which in the
  • Plug direction S can extend completely through the plug body 2.
  • the latching device 22 is preferably arranged. Should not a latching connection between the latching device 22 and a Bipolarplattenstapel by simply removing the connector 1 from
  • the latching connection between the latching device 22 and the Bipolarplattenstapel through the openings 31 a, 31 b can be solved.
  • tools can be guided through the openings 31 a, 31 b in order to deflect the latching arms 23 toward one another in order thus to release the catch connection of the latching elements 29 and the bipolar plates of the bipolar plate stack.
  • FIG. 3 shows schematically a first embodiment of a contact element 5 of the connector 1 according to the invention in a perspective view, wherein the contact element 5 is only partially shown in the embodiment of Figure 1.
  • the contact element 5 is designed as a spring contact with at least one and as in
  • Embodiment of Figure 4 shown in particular two resilient contact tabs or tabs 38, 39 configured. Free ends 40, 41 of the contact tabs 38, 39 form a widening in the insertion direction S contact opening 41 to the
  • the contact tabs 38, 39 are preferably resiliently pressed against one another.
  • the contact element 5 is formed with a first securing element 44, which is formed for example as a securing tab and extends counter to the insertion direction S and thereby tilted to the insertion direction S extends.
  • a fixed end 45 of the securing element 44 is fixed to a the contact tabs 38, 39 fastened together contact tab bridge 46.
  • a free end 47 pointing away from the fixed end 45 of the first securing element 44 projects counter to the insertion direction S and projects against the width direction B from a contacting section 48 arranged in the insertion direction S in front of the contact opening 42 for contacting the contact element 5 with a conductor.
  • the contacting section 48 forms, for example, an end of the contact element 5 pointing counter to the plug-in direction S and can be configured as a crimping section for forming a crimp connection with an electrical conductor.
  • the first securing element 44 secures the contact element 5 against being pulled out of the contact chamber 4 counter to the plugging direction S, for example when the plug connector 1 is pulled off the bipolar plate on a conductor connected to the contact element 5.
  • the contact element 5 is formed with a second securing element 49 which interacts with a contact securing element arranged in the safety channel 37.
  • the second securing element 49 may be formed as a securing projection projecting in the width direction B, which engages in a securing recess of the contact securing element.
  • the second securing element 49th however, formed as a backup return, in which the arranged in the backup channel 37 contact securing element engages.
  • the second securing element 49 has an at least partially facing in the insertion direction S locking surface 50 which is arranged in an assembled state of the connector 1 in the insertion direction S directly in front of the contact securing element.
  • the contact element 5 has a further securing element 51, wherein the securing elements 49, 51 are preferably identical and aligned with each other in the height direction H, so that the contact securing element against the height direction H can engage in the two securing elements 49, 51, the backup channel 37 so in the assembled state of
  • Connector 1 by the securing elements 49, 51 extends.
  • FIG. 4 shows a plug connection 32 with the plug connector 1 and a bipolar plate stack 33.
  • the bipolar plate stack has a plurality of bipolar plates 34, a membrane electrode arrangement 35 being provided between in each case two bipolar plates 34 consecutive in the height direction H. In the width direction B, the bipolar plates 34 project through the receiving slots 20 into the plug body 2 of the connector 1.
  • FIG. 4 shows the side wall 13 of the connector 1.
  • the uppermost in the height direction H bipolar plate 34 is contacted by the top in the height direction H contact element 5 of the second group 7, wherein the top in the height direction H contact element 5 can extend beyond all other contact elements 5 of the connector 1 in the height direction H.
  • the counter to the height direction H on the top contact element 5 contacting bipolar plate 34 following bipolar plate 34 protrudes through a further of the
  • the bipolar plates 34 which follow the height direction H on the two bipolar plates 34, project alternately into one of the contact chambers 4 or into one of the empty receptacles 10 of the group 7 adjacent to the side wall 13.
  • Bipolar plates 34 which are not contacted by one of the contact elements 5 of the adjacent to the side wall 13 group 7, contact the contact elements 5 adjacent to the opposite side wall 12 first group 6.
  • Bipolarplatten 34 in the contact chambers 4 adjacent to the side wall 12 second Group 7 protrude, projecting into empty receptacles 10 of the first group 6, which adjoins the side wall 12 opposite the side wall 12.
  • the membrane-electrode assemblies 35 do not protrude into the plug body 2, but preferably end at a distance from the plug body 2.
  • Figure 5 shows the connector 32 of the embodiment of Figure 4 schematically in a plan view against the height direction H.
  • the bipolar plate stack 33 has recesses 36 which extend through all the bipolar plates 34 of the bipolar plate stack 33 in the plug-in direction S and the height direction H.
  • the recess 36 are preferably aligned with each other and can form a continuous and a cylindrical cross-section having an opening in the width direction B and the insertion direction S extending base opening, wherein the cylindrical
  • the recess 36 has at least one in the
  • Plug-in direction S rear area a clear width W on.
  • the recess 36 is tapered and has a clear width Wa, which is smaller than the clear width W.
  • the inside width of the recess 36 can increase again against the insertion direction S from the tapered point, so that the recess 36 forms a funnel-shaped receptacle 37 opening opposite to the insertion direction S.
  • Insertion direction S in front of the tapered portion of the recess 36 can be arranged threading surfaces 26a, 27a of the bipolar plates 34, which form the funnel-shaped receptacle 37.
  • the funnel-shaped receptacle 37 allows easy insertion of the latching arms 36, which come to rest on a peripheral region of the recess 36 during a movement in the plug-in direction S and on the tapered section. If the connector 1 is further pushed onto the bipolar plate stack 33 in the plug-in direction S, at least the free ends 25 of the latching arms 23 are deflected toward one another by the funnel-shaped receptacle 37.
  • the insertion direction S behind the tapered portion allows the clear width W, that the locking arms 23 in particular due to elastic and by the latching arms 23 itself
  • the retaining bevels 30 of the latching arms 23 may be pressed against retaining recesses 30a adjoining the recess 36 or at least bear against the latter, in order to prevent the plug connector 1 from falling down unintentionally from the bipolar plate stack 33.
  • the retaining slants 30a are formed by the bipolar plates and are arranged in the insertion direction S, preferably behind the tapered region. LIST OF REFERENCE NUMBERS

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
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  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

L'invention concerne un connecteur enfichable électrique (1), destiné à la mise en contact d'un empilement de plaques bipolaires destiné à une pile à combustible, qui comprend un corps de connecteur (2) dans lequel sont prévues au moins deux chambres de contact (4) ouvertes dans le sens d'enfichage (S). L'invention concerne également un empilement de plaques bipolaires pour pile à combustible. Selon l'invention, un logement vide (10) est disposé entre les chambres de contact (4).
PCT/EP2015/078065 2014-12-15 2015-11-30 Connecteur enfichable électrique pourvu d'un moyen d'encliquetage destiné à la mise en contact d'un empilement de plaques bipolaires pour pile à combustible et empilement de plaques bipolaires Ceased WO2016096385A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014225949.5 2014-12-15
DE102014225949.5A DE102014225949A1 (de) 2014-12-15 2014-12-15 Elektrischer Steckverbinder mit Rasteinrichtung zur Kontaktierung eines Bipolarplattenstapels für eine Brennstoffzelle und Bipolarplattenstapel

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WO2016096385A1 true WO2016096385A1 (fr) 2016-06-23

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PCT/EP2015/078065 Ceased WO2016096385A1 (fr) 2014-12-15 2015-11-30 Connecteur enfichable électrique pourvu d'un moyen d'encliquetage destiné à la mise en contact d'un empilement de plaques bipolaires pour pile à combustible et empilement de plaques bipolaires

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DE (1) DE102014225949A1 (fr)
WO (1) WO2016096385A1 (fr)

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KR102949546B1 (ko) * 2018-08-14 2026-04-06 티이 커넥티버티 저머니 게엠베하 접촉 요소, 접촉 요소를 갖는 플러그, 및 양극 스택과 접촉하기 위한 접촉 배열체

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DE102016115100B4 (de) 2016-07-12 2024-07-18 Erni Production Gmbh & Co. Kg Kontaktiereinrichtung für eine Brennstoffzelle
DE102016225432A1 (de) * 2016-12-19 2018-06-21 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Kontaktieren von Separatorplatten eines Brennstoffzellenstapels
DE102020212592A1 (de) * 2020-10-06 2022-04-07 Robert Bosch Gesellschaft mit beschränkter Haftung Separatorplatte für einen Brennstoffzellenstapel, Brennstoffzellenstapel sowie Verfahren zur Herstellung einer Separatorplatte
CN113013451B (zh) * 2021-03-04 2022-10-14 上海捷氢科技股份有限公司 一种燃料电池单体电压检测用插接件及其安装结构
DE102021116585A1 (de) 2021-06-28 2022-12-29 CellForm IP GmbH & Co. KG Bipolarplatte
DE102022101247B3 (de) * 2022-01-20 2023-03-30 Schaeffler Technologies AG & Co. KG Elektrisches Kontaktierelement und Messanordnung zur Spannungsmessung in einem Brennstoffzellensystem
DE102022114215B3 (de) * 2022-06-07 2023-08-10 Schaeffler Technologies AG & Co. KG Kontaktiervorrichtung für einen Stapel elektrochemischer Zellen und Kontaktierungsverfahren
DE202023104663U1 (de) 2023-08-17 2024-11-22 Weidmüller Interface GmbH & Co. KG Steckverbinder und Anordnung umfassend einen Steckverbinder und eine Stapelplatte eines Elektrolyseurs

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JP2010192383A (ja) * 2009-02-20 2010-09-02 Fujikura Ltd 接続端子及びコネクタ並びにスタック状電極への接続構造
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