JP2006294314A - Device and method for sucking and carrying membrane-electrode assembly - Google Patents

Device and method for sucking and carrying membrane-electrode assembly Download PDF

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JP2006294314A
JP2006294314A JP2005110476A JP2005110476A JP2006294314A JP 2006294314 A JP2006294314 A JP 2006294314A JP 2005110476 A JP2005110476 A JP 2005110476A JP 2005110476 A JP2005110476 A JP 2005110476A JP 2006294314 A JP2006294314 A JP 2006294314A
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electrode assembly
membrane electrode
suction
membrane
suction head
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Yasuhiro Sakashita
康広 坂下
Hiroaki Honda
洋昭 本多
Hideo Onda
英男 恩田
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Toyota Motor Corp
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    • 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
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    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

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Abstract

<P>PROBLEM TO BE SOLVED: To suck a plurality of stacked and stored membrane-electrode assemblies one by one using a suction head to carry the same with a sucking and carrying device for a membrane-electrode assembly. <P>SOLUTION: The sucking and carrying device 10 for a membrane-electrode assembly for a fuel cell is provided for sucking a plurality of stacked and stored membrane-electrode assemblies 18 one by one with a suction head 12 and carrying the same. A suction surface of the suction head 12 is a recessed surface 50. In particular, the suction head 12 comprises an suction plate 40 for sucking a first membrane-electrode assembly 60 stacked and stored, a suction part 38 provided on the suction plate 40 to suck the first membrane-electrode assembly 60, and a projection 52 provided to project from the suction plate 40 to deform the first membrane-electrode assembly 60 when it is sucked by the suction part 38. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、膜電極接合体吸引搬送装置及び膜電極接合体吸引搬送方法に係り、特に、積層されて置かれる複数の膜電極接合体を吸引ヘッドで１体ずつ吸引して搬送する燃料電池用の膜電極接合体吸引搬送装置及び膜電極接合体吸引搬送方法に関する。   The present invention relates to a membrane / electrode assembly suction / conveying apparatus and a membrane / electrode assembly suction / conveying method, and more particularly to a fuel cell that sucks and conveys a plurality of laminated membrane electrode assemblies one by one with a suction head. The present invention relates to a membrane / electrode assembly suction / transport apparatus and a membrane / electrode assembly suction / transport method.

燃料電池は、高効率と優れた環境特性を有する電池として近年脚光を浴びている。燃料電池は、一般的に、燃料である水素に空気中の酸素を化学反応させて、電気エネルギーをつくりだしている。   In recent years, fuel cells have attracted attention as batteries having high efficiency and excellent environmental characteristics. A fuel cell generally generates electric energy by chemically reacting oxygen in the air with hydrogen as a fuel.

燃料電池の種類は、リン酸型、溶融炭酸塩型、固体電解質型、アルカリ型、固体高分子型等がある。この中でも、常温で起動しかつ起動時間が速い等の利点を有する固体高分子型の燃料電池が注目されている。   Types of fuel cells include phosphoric acid type, molten carbonate type, solid electrolyte type, alkali type, and solid polymer type. Among these, solid polymer fuel cells that have advantages such as startup at normal temperature and quick startup time have been attracting attention.

固体高分子型の燃料電池の単電池は、電解質膜と、触媒層と、ガス拡散層と、セパレータとを含んで構成される。このうち電解質膜と、触媒層と、ガス拡散層とを一体化したものは、膜電極接合体と呼ばれている。   A unit cell of a polymer electrolyte fuel cell includes an electrolyte membrane, a catalyst layer, a gas diffusion layer, and a separator. Among these, the one in which the electrolyte membrane, the catalyst layer, and the gas diffusion layer are integrated is called a membrane electrode assembly.

図５は、固体高分子型の燃料電池の膜電極接合体６８の構成を示す図である。膜電極接合体６８は、電解質膜７０の両側にそれぞれアノード極側の触媒層とカソード極側の触媒層とが積層され、アノード極側の触媒層にアノード極側のガス拡散層７２が積層され、カソード極側の触媒層にカソード極側のガス拡散層７４が積層されて構成される。   FIG. 5 is a diagram showing the configuration of the membrane electrode assembly 68 of the solid polymer fuel cell. In the membrane electrode assembly 68, an anode electrode side catalyst layer and a cathode electrode side catalyst layer are respectively laminated on both sides of the electrolyte membrane 70, and an anode electrode side gas diffusion layer 72 is laminated on the anode electrode side catalyst layer. The cathode electrode side gas diffusion layer 74 is laminated on the cathode electrode side catalyst layer.

電解質膜７０は、化学的に安定であるフッ素系樹脂、例えば、パーフルオロカーボンスルホン酸のイオン交換膜が用いられる。パーフルオロカーボンスルホン酸のイオン交換膜としては、ナフィオン膜（デュポン社の登録商標）等が用いられる。触媒層は、白金等の触媒をカーボンブラック等の触媒の担体に付着して用いられる。カーボンブラックとしては、ケッチェンブラック（ライオン社製）等が用いられる。ガス拡散層７２，７４には、導電性を有するカーボン材料、例えば、カーボンペーパーやカーボン布等が用いられる。ここで、触媒層とガス拡散層７２，７４とは、燃料電池の電極としての機能を有している。   As the electrolyte membrane 70, a chemically stable fluorine-based resin, for example, an ion exchange membrane of perfluorocarbon sulfonic acid is used. As an ion exchange membrane of perfluorocarbon sulfonic acid, a Nafion membrane (registered trademark of DuPont) or the like is used. The catalyst layer is used by attaching a catalyst such as platinum to a catalyst carrier such as carbon black. As the carbon black, ketjen black (manufactured by Lion) or the like is used. For the gas diffusion layers 72 and 74, a conductive carbon material, such as carbon paper or carbon cloth, is used. Here, the catalyst layer and the gas diffusion layers 72 and 74 have a function as an electrode of the fuel cell.

膜電極接合体６８は、セパレータに組付けされるまでの間は、収納のため積層されて収納ステーションに置かれている。膜電極接合体６８がセパレータに組付けられるときには、膜電極接合体６８を収納ステーションから組付けステーションヘ搬送し、セパレータと一体化される。   Until the membrane electrode assembly 68 is assembled to the separator, the membrane electrode assembly 68 is stacked for storage and placed in the storage station. When the membrane electrode assembly 68 is assembled to the separator, the membrane electrode assembly 68 is transported from the storage station to the assembly station and integrated with the separator.

膜電極接合体６８を搬送する方法としては、例えば、膜電極接合体６８を吸引ヘッドで吸引して搬送する方法がある（例えば、特許文献１参照）。膜電極接合体６８を吸引により搬送するのは、膜電極接合体６８をチャッキングにより挟んで搬送したり、ツメ等に引掛けて搬送すると、膜電極接合体６８を損傷する可能性があるからである。   As a method of transporting the membrane electrode assembly 68, for example, there is a method of transporting the membrane electrode assembly 68 by sucking it with a suction head (for example, see Patent Document 1). The reason why the membrane electrode assembly 68 is transported by suction is that if the membrane electrode assembly 68 is transported while being chucked or hooked on a claw or the like, the membrane electrode assembly 68 may be damaged. It is.

特開２００３−２２８１０号公報JP 2003-22810 A

図６は、積層された膜電極接合体８６を従来の吸引ヘッド７６で吸引する際に、吸引ヘッド７６を積層された膜電極接合体８６に押し当てた状態を示す図である。積層された膜電極接合体８６の高さは、膜電極接合体と膜電極接合体との間に気泡を有するため、場所により多少異なっている。そのため、最上層の第１層の膜電極接合体７８を吸引ヘッド７６で吸引する際には、吸引ヘッド７６を第１層の膜電極接合体７８に押し当てて吸引する。図６の左側の拡大図で示すように、吸引ヘッド７６を第１層の膜電極接合体７８に押し当てることで、第１層の膜電極接合体７８とその下の第２層の膜電極接合体８０との間に生じている気泡８２は除去される。そして、第１層の膜電極接合体７８と第２層の膜電極接合体８０との間は、真空８４となる。   FIG. 6 is a view showing a state in which the suction head 76 is pressed against the laminated membrane electrode assembly 86 when the laminated membrane electrode assembly 86 is sucked by the conventional suction head 76. The height of the laminated membrane electrode assembly 86 differs somewhat depending on the location because it has bubbles between the membrane electrode assembly and the membrane electrode assembly. Therefore, when the uppermost first layer membrane electrode assembly 78 is sucked by the suction head 76, the suction head 76 is pressed against the first layer membrane electrode assembly 78 and sucked. As shown in the enlarged view on the left side of FIG. 6, by pressing the suction head 76 against the first layer membrane electrode assembly 78, the first layer membrane electrode assembly 78 and the second layer membrane electrode below the first layer membrane electrode assembly 78. The bubble 82 generated between the joined body 80 is removed. A vacuum 84 is applied between the first layer membrane electrode assembly 78 and the second layer membrane electrode assembly 80.

図７は、吸引ヘッド７６で第１層の膜電極接合体７８を吸引７７している状態を示す図である。第１層の膜電極接合体７８を吸引ヘッド７６で吸引７７して持ち上げようとすると、図７の右側の拡大図に示すように第１層の膜電極接合体７８と第２層の膜電極接合体８０との間の真空８４が維持されているので、真空８４の吸引力によって第２層の膜電極接合体８０も同時に持ち上げられる。また、各々の膜電極接合体の質量は、略１０ｇ以下であり非常に軽いため、第２層の膜電極接合体８０が、第１層の膜電極接合体７８と分かれて、第２層の膜電極接合体８０の自重で落下することは難しい。したがって、上記従来技術では、第１層の膜電極接合体７８のみを吸引７７により搬送することは困難である。   FIG. 7 is a view showing a state in which the first layer membrane electrode assembly 78 is sucked 77 by the suction head 76. When the membrane electrode assembly 78 of the first layer is sucked 77 by the suction head 76 and lifted, the membrane electrode assembly 78 of the first layer and the membrane electrode of the second layer as shown in the enlarged view on the right side of FIG. Since the vacuum 84 between the joined body 80 is maintained, the membrane electrode assembly 80 of the second layer is also lifted simultaneously by the suction force of the vacuum 84. Further, since the mass of each membrane electrode assembly is approximately 10 g or less and very light, the second layer membrane electrode assembly 80 is separated from the first layer membrane electrode assembly 78, and the second layer membrane electrode assembly 80 is separated. It is difficult to drop the membrane electrode assembly 80 due to its own weight. Therefore, in the above prior art, it is difficult to transport only the first layer membrane electrode assembly 78 by suction 77.

そこで、本発明の目的は、かかる課題を解決し、積層されて置かれる複数の膜電極接合体を吸引ヘッドで１体ずつ吸引して搬送する膜電極接合体吸引搬送装置及び膜電極接合体吸引搬送方法を提供することである。   SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve this problem and to provide a membrane electrode assembly suction / conveying device and a membrane electrode assembly suction for sucking and conveying a plurality of laminated membrane electrode assemblies one by one with a suction head. It is to provide a transport method.

本発明に係る膜電極接合体吸引搬送装置は、積層されて置かれる複数の膜電極接合体を吸引ヘッドで１体ずつ吸引して搬送する燃料電池用の膜電極接合体吸引搬送装置であって、吸引ヘッドの吸引面が凹面であることを特徴とする。   A membrane / electrode assembly suction / conveying device according to the present invention is a membrane / electrode assembly suction / conveying device for a fuel cell that sucks and conveys a plurality of laminated membrane electrode assemblies by a suction head one by one. The suction surface of the suction head is a concave surface.

また、本発明に係る膜電極接合体吸引搬送装置において、吸引ヘッドは、積層されて置かれる第１膜電極接合体を吸着する吸着板と、吸着板に配置され、第１膜電極接合体を吸引する吸引部と、吸引部による吸引の際に第１膜電極接合体を変形させるため、吸着板に突出して配置される突出部とを有し、第１膜電極接合体を吸引することにより変形させて、第１膜電極接合体の下に置かれる第２膜電極接合体との間に隙間を形成することが好ましい。   Further, in the membrane electrode assembly suction / conveyance device according to the present invention, the suction head is disposed on the adsorption plate for adsorbing the first membrane electrode assembly placed in a stacked manner, and the first membrane electrode assembly is arranged on the adsorption plate. By sucking the first membrane electrode assembly, the suction portion sucks the first membrane electrode assembly in order to deform the first membrane electrode assembly during suction by the suction portion. Preferably, a gap is formed between the second membrane electrode assembly and the second membrane electrode assembly placed under the first membrane electrode assembly.

さらに、本発明に係る膜電極接合体吸引搬送方法は、積層されて置かれる複数の膜電極接合体を吸引ヘッドで１体ずつ吸引して搬送する燃料電池用の膜電極接合体吸引搬送方法であって、積層されて置かれる第１膜電極接合体を吸引するために吸引ヘッドを下降する吸引ヘッド下降工程と、第１膜電極接合体を吸引ヘッドの吸着板に配置される吸引部で吸引して、吸着板に突出して配置される突出部で変形させる膜電極接合体吸引工程と、第１膜電極接合体を吸着板に吸着して、吸引ヘッドを上昇させる吸引ヘッド上昇工程と、を有し、第１膜電極接合体を吸引することにより変形させて、第１膜電極接合体の下に置かれる第２膜電極接合体との間に隙間を形成することを特徴とする。   Furthermore, the membrane electrode assembly suction / conveying method according to the present invention is a membrane electrode assembly suction / conveying method for a fuel cell in which a plurality of laminated membrane electrode assemblies are sucked and conveyed one by one by a suction head. A suction head lowering step of lowering the suction head to suck the first membrane electrode assembly placed in a stacked manner, and the first membrane electrode assembly is sucked by a suction portion disposed on the suction plate of the suction head Then, a membrane electrode assembly suction step for deforming at a projecting portion arranged to protrude from the suction plate, and a suction head raising step for sucking the first membrane electrode assembly to the suction plate and raising the suction head, The first membrane electrode assembly is deformed by suction, and a gap is formed between the first membrane electrode assembly and the second membrane electrode assembly placed under the first membrane electrode assembly.

上記の膜電極接合体吸引搬送装置及び膜電極接合体吸引搬送方法によれば、積層されて置かれる複数の膜電極接合体を吸引ヘッドで１体ずつ吸引して搬送することができる。   According to the membrane electrode assembly suction / conveying device and the membrane electrode assembly suction / conveying method, a plurality of membrane electrode assemblies stacked and placed can be sucked and conveyed one by one with a suction head.

以下に図面を用いて本発明に係る実施の形態につき、詳細に説明する。図１は、膜電極接合体吸引搬送装置１０の構成を示す図であり、図２は膜電極接合体吸引搬送装置１０の吸引部分の斜視図である。膜電極接合体吸引搬送装置１０は、吸引ヘッド１２と、シリンダ１４と、膜電極接合体置き台１６と、シャフト２０と、膜電極接合体ガイド２２と、プレート２４と、膜電極接合体受取高さ位置検知センサー２６と、ベルト２８と、モーター３０と、フォーク３２と、アクチュエータ３４と、膜電極接合体移載台３６とから構成される。   Embodiments according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram showing a configuration of a membrane electrode assembly suction / conveyance device 10, and FIG. 2 is a perspective view of a suction portion of the membrane electrode assembly suction / conveyance device 10. The membrane electrode assembly suction conveyance device 10 includes a suction head 12, a cylinder 14, a membrane electrode assembly stage 16, a shaft 20, a membrane electrode assembly guide 22, a plate 24, and a membrane electrode assembly receiving amount. The position detection sensor 26, a belt 28, a motor 30, a fork 32, an actuator 34, and a membrane electrode assembly transfer table 36 are configured.

膜電極接合体置き台１６は、複数の膜電極接合体１８が積層されて置かれるものであり、膜電極接合体置き台１６を上昇または下降させるためのシャフト２０に固定される。そして、シャフト２０は、ベルト２８に連結され、ベルト２８はモーター３０と連結される。膜電極接合体置き台１６の大きさは、膜電極接合体１８の大きさと略同じであるが、特にこれに限定されることはない。膜電極接合体置き台１６には、略４００枚の膜電極接合体が置かれる。膜電極接合体置き台１６の材料は、アルミニウムまたはアルミニウム合金等の金属材料が用いられる。勿論、金属材料だけでなく、高分子材料や無機材料等を用いることもできる。   The membrane electrode assembly pedestal 16 is a stack of a plurality of membrane electrode assemblies 18 and is fixed to a shaft 20 for raising or lowering the membrane electrode assembly pedestal 16. The shaft 20 is connected to the belt 28, and the belt 28 is connected to the motor 30. The size of the membrane electrode assembly stage 16 is substantially the same as the size of the membrane electrode assembly 18, but is not particularly limited thereto. On the membrane electrode assembly mounting table 16, approximately 400 membrane electrode assemblies are placed. A metal material such as aluminum or aluminum alloy is used as the material of the membrane electrode assembly mounting table 16. Of course, not only a metal material but also a polymer material or an inorganic material can be used.

膜電極接合体ガイド２２は、膜電極接合体置き台１６が上昇または下降する際に、積層されて置かれる複数の膜電極接合体１８がずれないようにするためのものであり、プレート２４に配置される。膜電極接合体ガイド２２の高さは、積層されて置かれる膜電極接合体１８の高さと略同じであり、例えば、略２００ｍｍであるが、特にこれに限定されることはない。膜電極接合体ガイド２２の材料については、上述した膜電極接合体置き台１６と同様の材料を用いることができる。   The membrane electrode assembly guide 22 is for preventing a plurality of membrane electrode assemblies 18 placed in a stacked manner from shifting when the membrane electrode assembly stage 16 is raised or lowered. Be placed. The height of the membrane electrode assembly guide 22 is substantially the same as the height of the laminated membrane electrode assembly 18 and is, for example, about 200 mm, but is not particularly limited thereto. As the material of the membrane electrode assembly guide 22, the same material as that of the membrane electrode assembly stage 16 described above can be used.

膜電極接合体受取高さ位置検知センサー２６は、膜電極接合体１８を吸引する位置を検知するものであり、膜電極接合体ガイド２２等に配置される。膜電極接合体受取高さ位置検知センサー２６は、赤外線等により膜電極接合体１８の位置を検知する光学式タイプの位置検知センサーが用いられる。勿論、膜電極接合体１８が位置検知センサーと接触することによって膜電極接合体１８の位置を検知する接触式タイプの位置検知センサーを用いることができ、膜電極接合体１８の位置を検知できるセンサーであれば、特に、これらの位置検知センサーに限定されることはない。   The membrane electrode assembly receiving height position detection sensor 26 detects a position at which the membrane electrode assembly 18 is sucked, and is disposed on the membrane electrode assembly guide 22 or the like. The membrane electrode assembly receiving height position detection sensor 26 is an optical type position detection sensor that detects the position of the membrane electrode assembly 18 by infrared rays or the like. Of course, a contact-type position detection sensor that detects the position of the membrane electrode assembly 18 by contacting the membrane electrode assembly 18 with the position detection sensor can be used, and the sensor that can detect the position of the membrane electrode assembly 18. If so, it is not particularly limited to these position detection sensors.

吸引ヘッド１２は、膜電極接合体１８を吸引するためのものであり、吸引ヘッド１２を上昇または下降させるためのシリンダ１４と連結されている。吸引ヘッド１２は、膜電極接合体１８を吸引するための吸引部３８と、膜電極接合体１８を吸着するための吸着板４０とから構成される。   The suction head 12 is for sucking the membrane electrode assembly 18 and is connected to a cylinder 14 for raising or lowering the suction head 12. The suction head 12 includes a suction part 38 for sucking the membrane electrode assembly 18 and a suction plate 40 for sucking the membrane electrode assembly 18.

吸引ヘッド１２の吸引部３８は、一般的に、空気等を吸引する際に使用される吸引ポンプや真空ポンプ等の吸引装置が用いられる。勿論、吸引部３８の吸引力は、膜電極接合体１８を吸引できる能力を有すればよく、これらの吸引装置に限定されることはない。   The suction unit 38 of the suction head 12 is generally a suction device such as a suction pump or a vacuum pump used when sucking air or the like. Needless to say, the suction force of the suction part 38 is not limited to these suction devices as long as it has the ability to suck the membrane electrode assembly 18.

図３は、吸引ヘッド１２の吸着板４０の構成を示す図である。吸着板４０の大きさは、膜電極接合体１８の大きさと略同じであり、例えば、略２００ｍｍ×略２２０ｍｍである。勿論、吸着板４０の大きさは、これに限定されることはない。また、吸着板４０は、アルミニウムまたはアルミニウム合金等の金属材料が用いられる。勿論、特にこれらに限定されることはなく、高分子材料や無機材料等を用いることもできる。   FIG. 3 is a diagram illustrating the configuration of the suction plate 40 of the suction head 12. The size of the suction plate 40 is substantially the same as the size of the membrane electrode assembly 18 and is, for example, approximately 200 mm × approximately 220 mm. Of course, the size of the suction plate 40 is not limited to this. The suction plate 40 is made of a metal material such as aluminum or an aluminum alloy. Of course, the material is not particularly limited to these, and a polymer material, an inorganic material, or the like can be used.

吸着板４０には、吸引部３８により膜電極接合体１８を吸引するための孔４２を複数有する吸引領域４４が設けられる。吸引領域４４は、例えば、吸着板４０の略中央に設けられ、吸引領域の幅４６は、略１００ｍｍである。勿論、吸引領域４４は、特にこのような配置や大きさに限定されることはない。   The suction plate 40 is provided with a suction region 44 having a plurality of holes 42 for sucking the membrane electrode assembly 18 by the suction part 38. The suction region 44 is provided, for example, in the approximate center of the suction plate 40, and the suction region width 46 is approximately 100 mm. Of course, the suction region 44 is not particularly limited to such an arrangement and size.

膜電極接合体１８を吸引するための孔４２は、ドリル等の機械加工により吸着板４０に穿設される。孔４２の孔径が小さいと膜電極接合体１８の吸引が十分でなく、孔４２の孔径が大きいと孔４２の中に膜電極接合体１８が吸い込まれて損傷する可能性がある。したがって、孔径は、例えば、略２ｍｍが用いられる。また、孔径は、略０．５ｍｍ以上略５ｍｍ以下であってもよい。勿論、膜電極接合体１８に損傷を与えることなく吸引できるのであれば、孔径は、これらに限定されることはない。また、孔４２の中心から中心までの間隔４８は、例えば、略１０ｍｍが用いられる。勿論、膜電極接合体１８を吸引できるのであれば、孔４２の間隔４８は、これに限定されることはない。   The hole 42 for sucking the membrane electrode assembly 18 is formed in the suction plate 40 by machining such as a drill. If the hole diameter of the hole 42 is small, the membrane electrode assembly 18 is not sufficiently sucked. If the hole diameter of the hole 42 is large, the membrane electrode assembly 18 may be sucked into the hole 42 and damaged. Accordingly, for example, approximately 2 mm is used as the hole diameter. Further, the hole diameter may be about 0.5 mm or more and about 5 mm or less. Of course, the hole diameter is not limited to these as long as the membrane electrode assembly 18 can be sucked without damaging it. In addition, the interval 48 from the center of the hole 42 is, for example, approximately 10 mm. Of course, as long as the membrane electrode assembly 18 can be sucked, the interval 48 between the holes 42 is not limited to this.

吸着板４０は、膜電極接合体１８の吸引時に膜電極接合体１８が吸着板４０と接触することによる傷付き防止や吸着板４０と膜電極接合体１８との化学反応防止のためにコーティング処理される。コーティング材料は、化学的に安定なフッ素系樹脂、例えば、ポリテトラフルオロエチレン（ＰＴＦＥ）樹脂が用いられる。   The adsorption plate 40 is coated to prevent scratching due to the membrane electrode assembly 18 coming into contact with the adsorption plate 40 during suction of the membrane electrode assembly 18 and to prevent a chemical reaction between the adsorption plate 40 and the membrane electrode assembly 18. Is done. As the coating material, a chemically stable fluorine-based resin, for example, polytetrafluoroethylene (PTFE) resin is used.

その他のフッ素系樹脂としては、パーフロロアルコキシ（ＰＦＡ）樹脂、フッ化エチレンプロピレン（ＦＥＰ）樹脂、エチレンテトラフルオロエチレン（ＥＴＦＥ）樹脂、ポリフッ化ビニリデン（ＰＶＤＦ）樹脂、エチレンクロロトリフルオロエチレン（ＥＣＴＦＥ）樹脂、ポリクロロトリフルオロエチレン（ＰＣＴＦＥ）樹脂、ポリフッ化ビニル（ＰＶＦ）樹脂等を用いることができる。   Other fluororesins include perfluoroalkoxy (PFA) resin, fluorinated ethylene propylene (FEP) resin, ethylene tetrafluoroethylene (ETFE) resin, polyvinylidene fluoride (PVDF) resin, ethylene chlorotrifluoroethylene (ECTFE). Resin, polychlorotrifluoroethylene (PCTFE) resin, polyvinyl fluoride (PVF) resin, or the like can be used.

このようなコーティング処理は、一般的に、浸漬法によりなされる。例えば、ポリテトラフルオロエチレン（ＰＴＦＥ）樹脂を含んだ分散材の中に吸着板４０を浸漬し、乾燥し、焼成することによって処理される。勿論、浸漬法だけでなく他の方法であるスプレー法や塗布法等によりコーティング処理してもよい。また、他のコーティング材料としては、シリコン樹脂等を用いることができるが、特にこれらの材料に限定されることはない。   Such a coating process is generally performed by a dipping method. For example, the adsorption plate 40 is immersed in a dispersion material containing polytetrafluoroethylene (PTFE) resin, dried, and fired. Of course, the coating process may be performed not only by the dipping method but also by other methods such as a spray method or a coating method. Further, as other coating materials, silicon resin or the like can be used, but is not particularly limited to these materials.

吸引ヘッド１２の吸引面５０は、吸引部３８による吸引の際に膜電極接合体１８を変形させるための凹面であることを要するので、吸着板４０には、突出部５２が配置される。突出部５２は、フッ素系樹脂、例えば、ポリテトラフルオロエチレン（ＰＴＦＥ）樹脂のシートが用いられる。勿論、その他の材料を用いてもよいし、吸着板４０と同じ材料を用いてもよい。そして、ポリテトラフルオロエチレン（ＰＴＦＥ）樹脂のシートを所定の大きさに切断し、粘着テープや接着剤等で吸着板４０に固着される。勿論、ボルト等により吸着板４０に締結してもよい。   Since the suction surface 50 of the suction head 12 needs to be a concave surface for deforming the membrane electrode assembly 18 at the time of suction by the suction portion 38, the protrusion 52 is disposed on the suction plate 40. The protrusion 52 is made of a fluorine resin, for example, a polytetrafluoroethylene (PTFE) resin sheet. Of course, other materials may be used, and the same material as the suction plate 40 may be used. Then, a sheet of polytetrafluoroethylene (PTFE) resin is cut into a predetermined size and fixed to the suction plate 40 with an adhesive tape, an adhesive, or the like. Of course, you may fasten to the adsorption | suction board 40 with a volt | bolt etc.

また、突出部５２は、吸着板４０と一体として成形することができる。その場合は、突出部５２は、上述した吸着板４０と同じ材料が用いられる。そして、突出部５２は、突出部５２の段差角部による膜電極接合体１８の傷付き防止や膜電極接合体１８との化学反応防止等のために、上述したようにポリテトラフルオロエチレン（ＰＴＦＥ）樹脂等のコーティング処理がなされる。   Further, the protrusion 52 can be formed integrally with the suction plate 40. In that case, the protrusion 52 is made of the same material as that of the suction plate 40 described above. The protrusion 52 is formed of polytetrafluoroethylene (PTFE) as described above in order to prevent the membrane electrode assembly 18 from being damaged by the stepped corners of the protrusion 52 and to prevent a chemical reaction with the membrane electrode assembly 18. ) The resin is coated.

突出部５２は、例えば、吸着板４０の吸引領域４４を挟んで両側に配置される。各々の突出部５２の幅５４は、例えば、略５０ｍｍである。勿論、突出部５２の配置や幅等については、特にこれらに限定されることはない。   The protrusions 52 are disposed on both sides of the suction area 44 of the suction plate 40, for example. The width 54 of each protrusion 52 is approximately 50 mm, for example. Of course, the arrangement, width, and the like of the protrusions 52 are not particularly limited to these.

突出部５２の厚みは、厚みが小さいと膜電極接合体１８が十分に変形することができない。また、突出部５２の厚みは、膜電極接合体１８の厚みよりも大きいと、膜電極接合体１８の変形が大きくなり破損する可能性がある。したがって、膜電極接合体１８の厚みが、例えば、略０．５ｍｍである場合には、突出部５２の厚みは、例えば、略０．２ｍｍが用いられる。また、突出部５２の厚みは、略０．１ｍｍ以上略０．５ｍｍ以下であってもよく、好ましくは、略０．１ｍｍ以上略０．３ｍｍ以下が用いられる。   If the protrusion 52 has a small thickness, the membrane electrode assembly 18 cannot be sufficiently deformed. Moreover, if the thickness of the protrusion 52 is larger than the thickness of the membrane electrode assembly 18, the membrane electrode assembly 18 may be greatly deformed and damaged. Therefore, when the thickness of the membrane electrode assembly 18 is, for example, approximately 0.5 mm, the thickness of the protrusion 52 is, for example, approximately 0.2 mm. The protrusion 52 may have a thickness of about 0.1 mm to about 0.5 mm, preferably about 0.1 mm to about 0.3 mm.

突出部５２の段差の形状は、膜電極接合体１８間に空気が入りやすくするために、直線形状が用いられる。勿論、膜電極接合体１８との間に空気が入りやすい形状であれば、直線形状に限定されることはない。   The shape of the step of the protrusion 52 is a linear shape so that air can easily enter between the membrane electrode assemblies 18. Of course, the shape is not limited to a linear shape as long as air can easily enter the membrane electrode assembly 18.

再び図１に戻り、吸引ヘッド１２は、フォーク３２にボルト等により締結され、フォーク３２は、吸引ヘッド１２を上昇または下降させるためにシリンダ１４に締結される。そして、フォーク３２は、膜電極接合体を吸引した吸引ヘッド１２を膜電極接合体移載台３６へ移動させるために、アクチュエータ３４にボルト等により締結される。   Returning to FIG. 1 again, the suction head 12 is fastened to the fork 32 with bolts or the like, and the fork 32 is fastened to the cylinder 14 to raise or lower the suction head 12. The fork 32 is fastened to the actuator 34 with a bolt or the like in order to move the suction head 12 that has sucked the membrane electrode assembly to the membrane electrode assembly transfer table 36.

つぎに、上記構成の膜電極接合体吸引搬送装置１０を用いた膜電極接合体吸引搬送方法について説明する。図４は、膜電極接合体吸引搬送方法を示す図である。膜電極接合体吸引搬送方法は、積層されて置かれる第１膜電極接合体６０を吸引するために吸引ヘッド１２を下降する吸引ヘッド下降工程（Ｓ１０）と、第１膜電極接合体６０を吸引ヘッド１２の吸着板４０に配置される吸引部３８で吸引して、吸着板４０に突出して配置される突出部５２で変形させる膜電極接合体吸引工程（Ｓ１２）と、第１膜電極接合体６０を吸着板４０に吸着して、吸引ヘッド１２を上昇させる吸引ヘッド上昇工程（Ｓ１４）と、からなる。   Next, a membrane / electrode assembly suction / conveying method using the membrane / electrode assembly suction / conveyance device 10 having the above-described configuration will be described. FIG. 4 is a diagram showing a membrane electrode assembly suction / conveying method. The membrane electrode assembly suction conveyance method includes a suction head lowering step (S10) in which the suction head 12 is lowered to suck the first membrane electrode assembly 60 placed in a stacked state, and the first membrane electrode assembly 60 is sucked. A membrane electrode assembly suction step (S12) in which suction is performed by the suction portion 38 disposed on the suction plate 40 of the head 12 and deformation is performed by the projection 52 disposed so as to project from the suction plate 40, and the first membrane electrode assembly A suction head raising step (S14) in which 60 is sucked onto the suction plate 40 and the suction head 12 is raised.

まず、吸引ヘッド１２が最上層の第１膜電極接合体６０を吸引する位置まで、膜電極接合体置き台１６を上昇させる。そのために、モーター３０の回転駆動力をベルト２８に伝達させ、ベルト２８に伝達された駆動力を、さらにシャフト２０に伝達させる。これにより、シャフト２０に固定された膜電極接合体置き台１６が上昇する。ここで、膜電極接合体置き台１６に積層されて置かれる膜電極接合体１８は、膜電極接合体ガイド２２にガイドされながら上昇する。   First, the membrane electrode assembly mounting table 16 is raised to a position where the suction head 12 sucks the uppermost first membrane electrode assembly 60. For this purpose, the rotational driving force of the motor 30 is transmitted to the belt 28, and the driving force transmitted to the belt 28 is further transmitted to the shaft 20. Thereby, the membrane electrode assembly stand 16 fixed to the shaft 20 is raised. Here, the membrane electrode assembly 18 stacked and placed on the membrane electrode assembly stage 16 rises while being guided by the membrane electrode assembly guide 22.

吸引ヘッド１２が第１膜電極接合体６０を吸引する位置まで膜電極接合体置き台１６が上昇すると、膜電極接合体受取高さ位置検知センサー２６により、その位置を検知する。そして、モーター３０の回転が停止し、膜電極接合体置き台１６の上昇が停止する。そして、膜電極接合体置き台１６は、吸引ヘッド１２が第１膜電極接合体６０を吸引する位置で待機する。   When the membrane electrode assembly mounting table 16 rises to a position where the suction head 12 sucks the first membrane electrode assembly 60, the position is detected by the membrane electrode assembly receiving height position detection sensor 26. Then, the rotation of the motor 30 stops, and the rise of the membrane electrode assembly mounting table 16 stops. The membrane electrode assembly stage 16 stands by at a position where the suction head 12 sucks the first membrane electrode assembly 60.

第１膜電極接合体６０を吸引するために、吸引ヘッド下降工程（Ｓ１０）により、吸引ヘッド１２の突出部５２が第１膜電極接合体６０を押し当てるまで吸引ヘッド１２を下降させる。吸着板４０の突出部５２が第１膜電極接合体６０を押し当てたら、吸引ヘッド１２の下降を停止し、第１膜電極接合体６０の吸引を開始する。   In order to suck the first membrane electrode assembly 60, the suction head 12 is lowered in the suction head lowering step (S10) until the protruding portion 52 of the suction head 12 presses the first membrane electrode assembly 60. When the protrusion 52 of the suction plate 40 presses the first membrane electrode assembly 60, the lowering of the suction head 12 is stopped and the suction of the first membrane electrode assembly 60 is started.

膜電極接合体吸引工程（Ｓ１２）による吸引は、吸引ヘッド１２の吸引部３８により、吸着板４０と第１膜電極接合体６０との間の空気を、吸着板４０の孔４２を介して吸引する。吸引を開始すると、吸着板４０に配置される突出部５２により、第１膜電極接合体６０は弓状に変形、例えば、弾性変形する。第１膜電極接合体６０は、ほとんど空気を通さないため、吸引部３８の吸引力は、第２膜電極接合体６２には働かない。したがって、第１膜電極接合体６０と第２膜電極接合体６２との間に空気が入って、第１膜電極接合体６０とその下の第２膜電極接合体６２との間の真空が開放されて隙間ができる。   In the suction in the membrane electrode assembly suction step (S12), the suction part 38 of the suction head 12 sucks the air between the suction plate 40 and the first membrane electrode assembly 60 through the hole 42 of the suction plate 40. To do. When the suction is started, the first membrane electrode assembly 60 is deformed into an arcuate shape, for example, elastically deformed, by the protruding portion 52 disposed on the suction plate 40. Since the first membrane electrode assembly 60 hardly passes air, the suction force of the suction portion 38 does not act on the second membrane electrode assembly 62. Therefore, air enters between the first membrane electrode assembly 60 and the second membrane electrode assembly 62, and the vacuum between the first membrane electrode assembly 60 and the second membrane electrode assembly 62 below it is reduced. It is opened and a gap is created.

そして、吸引ヘッド上昇工程（Ｓ１４）により、吸引ヘッド１２を第１膜電極接合体６０を吸引した状態で上昇させる。このとき、第１膜電極接合体６０と第２膜電極接合体６２との間の真空は開放されているので、第２膜電極接合体６２が第１膜電極接合体６０と同時に持ち上げられることはない。また、第２膜電極接合体６２は、膜電極接合体置き台１６が上昇することで、膜電極接合体受取高さ位置検知センサー２６により検知され、吸引ヘッド１２が第２膜電極接合体６２を吸引する位置で待機する。   Then, in the suction head raising step (S14), the suction head 12 is raised while the first membrane electrode assembly 60 is sucked. At this time, since the vacuum between the first membrane electrode assembly 60 and the second membrane electrode assembly 62 is released, the second membrane electrode assembly 62 is lifted simultaneously with the first membrane electrode assembly 60. There is no. The second membrane electrode assembly 62 is detected by the membrane electrode assembly receiving height position detection sensor 26 when the membrane electrode assembly stage 16 is raised, and the suction head 12 is detected by the second membrane electrode assembly 62. Wait at the position to suck in.

第１膜電極接合体６０を吸引した吸引ヘッド１２は、アクチュエータ３４によって、膜電極接合体移載台３６へ移動する。吸引ヘッド１２は、膜電極接合体移載台３６の位置で停止し、第１膜電極接合体６０をセットするための所定の位置までシリンダ１４により下降する。吸引ヘッド１２は、所定の位置まで下降したら停止し、吸引部３８の吸引を停止する。吸引部３８の吸引が停止すると、第１膜電極接合体６０は、吸着板４０から離れて膜電極接合体移載台３６の上にセットされ搬送が完了する。   The suction head 12 that has sucked the first membrane electrode assembly 60 is moved to the membrane electrode assembly transfer table 36 by the actuator 34. The suction head 12 stops at the position of the membrane electrode assembly transfer table 36 and is lowered by the cylinder 14 to a predetermined position for setting the first membrane electrode assembly 60. The suction head 12 stops when it is lowered to a predetermined position, and stops the suction of the suction unit 38. When the suction of the suction unit 38 is stopped, the first membrane electrode assembly 60 is set on the membrane electrode assembly transfer table 36 away from the suction plate 40, and the conveyance is completed.

第２膜電極接合体６２を搬送するため、吸引ヘッド１２は、所定の位置までシリンダ１４により上昇してから、アクチュエータ３４により元の位置まで移動する。   In order to convey the second membrane electrode assembly 62, the suction head 12 is moved up to a predetermined position by the cylinder 14 and then moved to the original position by the actuator 34.

以上、上記膜電極接合体吸引搬送装置１０及び膜電極接合体吸引搬送方法によれば、積層されて置かれる複数の膜電極接合体を吸引ヘッド１２で１体ずつ吸引して搬送することができる。したがって、膜電極接合体吸引搬送装置１０及び膜電極接合体吸引搬送方法により膜電極接合体を自動で搬送することができるので、燃料電池の生産性が向上する。   As described above, according to the membrane electrode assembly suction / conveyance device 10 and the membrane electrode assembly suction / conveyance method, a plurality of membrane electrode assemblies stacked and placed can be sucked and conveyed one by one by the suction head 12. . Therefore, since the membrane electrode assembly can be automatically conveyed by the membrane electrode assembly suction / conveyance device 10 and the membrane electrode assembly suction / conveyance method, the productivity of the fuel cell is improved.

本発明の実施の形態である膜電極接合体吸引搬送装置の構成を示す図である。It is a figure which shows the structure of the membrane electrode assembly suction conveyance apparatus which is embodiment of this invention. 本発明の実施の形態である膜電極接合体吸引搬送装置の吸引部分の斜視図である。It is a perspective view of the attraction | suction part of the membrane electrode assembly attraction | suction conveyance apparatus which is embodiment of this invention. 本発明の実施の形態である吸引ヘッドに配置される吸着板の構成を示す図である。It is a figure which shows the structure of the suction plate arrange | positioned at the suction head which is embodiment of this invention. 本発明の実施の形態である膜電極接合体吸引搬送方法の工程を示す図である。It is a figure which shows the process of the membrane electrode assembly suction conveyance method which is embodiment of this invention. 膜電極接合体の構成を示す図である。It is a figure which shows the structure of a membrane electrode assembly. 積層された膜電極接合体を従来の吸引ヘッドで吸引する際に、吸引ヘッドを膜電極接合体に押し当てた状態を示す図である。It is a figure which shows the state which pressed the suction head against the membrane electrode assembly, when attracting | stacking the laminated | stacked membrane electrode assembly with the conventional suction head. 従来の吸引ヘッドで第１層の膜電極接合体を吸引している状態を示す図である。It is a figure which shows the state which is attracting | sucking the membrane electrode assembly of the 1st layer with the conventional suction head.

符号の説明Explanation of symbols

１０ 膜電極接合体吸引搬送装置、１２ 吸引ヘッド、１４ シリンダ、１６ 膜電極接合体置き台、１８ 膜電極接合体、２０ シャフト、２２ 膜電極接合体ガイド、２４ プレート、２６ 膜電極接合体受取高さ位置検知センサー、２８ ベルト、３０ モーター、３２ フォーク、３４ アクチュエータ、３６ 膜電極接合体移載台、３８ 吸引部、４０ 吸着板、４２ 孔、５０ 吸引面、５２ 突出部、６０ 第１膜電極接合体、６２ 第２膜電極接合体、６８ 固体高分子型の燃料電池の膜電極接合体、７０ 電解質膜、７２ アノード極側のガス拡散層、７４ カソード極側のガス拡散層、７６ 従来の吸引ヘッド、７８ 第１層の膜電極接合体、８０ 第２層の膜電極接合体。   DESCRIPTION OF SYMBOLS 10 Membrane electrode assembly suction conveyance device, 12 Suction head, 14 Cylinder, 16 Membrane electrode assembly mounting base, 18 Membrane electrode assembly, 20 Shaft, 22 Membrane electrode assembly guide, 24 Plate, 26 Membrane electrode assembly receiving height Position detection sensor, 28 belt, 30 motor, 32 fork, 34 actuator, 36 membrane electrode assembly transfer table, 38 suction part, 40 suction plate, 42 holes, 50 suction surface, 52 protrusion part, 60 first membrane electrode 62, second membrane electrode assembly, 68 polymer electrode fuel cell membrane electrode assembly, 70 electrolyte membrane, 72 anode electrode side gas diffusion layer, 74 cathode electrode side gas diffusion layer, 76 Suction head, 78 First layer membrane electrode assembly, 80 Second layer membrane electrode assembly.

Claims (3)

積層されて置かれる複数の膜電極接合体を吸引ヘッドで１体ずつ吸引して搬送する燃料電池用の膜電極接合体吸引搬送装置であって、
吸引ヘッドの吸引面が凹面であることを特徴とする燃料電池用の膜電極接合体吸引搬送装置。 A membrane electrode assembly suction transport device for a fuel cell that sucks and transports a plurality of stacked membrane electrode assemblies placed one by one with a suction head,
2. A membrane electrode assembly suction / conveyance device for a fuel cell, wherein the suction surface of the suction head is a concave surface. 積層されて置かれる複数の膜電極接合体を吸引ヘッドで１体ずつ吸引して搬送する燃料電池用の膜電極接合体吸引搬送装置であって、
吸引ヘッドは、
積層されて置かれる第１膜電極接合体を吸着する吸着板と、
吸着板に配置され、第１膜電極接合体を吸引する吸引部と、
吸引部による吸引の際に第１膜電極接合体を変形させるため、吸着板に突出して配置される突出部と、
を有し、
第１膜電極接合体を吸引することにより変形させて、第１膜電極接合体の下に置かれる第２膜電極接合体との間に隙間を形成することを特徴とする燃料電池用の膜電極接合体吸引搬送装置。 A membrane electrode assembly suction transport device for a fuel cell that sucks and transports a plurality of stacked membrane electrode assemblies placed one by one with a suction head,
The suction head
An adsorption plate for adsorbing the first membrane electrode assembly placed in a stacked manner;
A suction part disposed on the suction plate and sucking the first membrane electrode assembly;
In order to deform the first membrane electrode assembly at the time of suction by the suction part, a protruding part that is arranged to protrude from the suction plate;
Have
A fuel cell membrane, wherein the first membrane electrode assembly is deformed by suction to form a gap with the second membrane electrode assembly placed under the first membrane electrode assembly. Electrode assembly suction transfer device. 積層されて置かれる複数の膜電極接合体を吸引ヘッドで１体ずつ吸引して搬送する燃料電池用の膜電極接合体吸引搬送方法であって、
積層されて置かれる第１膜電極接合体を吸引するために吸引ヘッドを下降する吸引ヘッド下降工程と、
第１膜電極接合体を、吸引ヘッドの吸着板に配置される吸引部で吸引して、吸着板に突出して配置される突出部で変形させる膜電極接合体吸引工程と、
第１膜電極接合体を吸着板に吸着して、吸引ヘッドを上昇させる吸引ヘッド上昇工程と、
を有し、
第１膜電極接合体を吸引することにより変形させて、第１膜電極接合体の下に置かれる第２膜電極接合体との間に隙間を形成することを特徴とする燃料電池用の膜電極接合体吸引搬送方法。


A membrane electrode assembly suction transport method for a fuel cell that sucks and transports a plurality of membrane electrode assemblies stacked and placed one by one with a suction head,
A suction head lowering step of lowering the suction head to suck the first membrane electrode assembly placed in a stacked manner;
A membrane electrode assembly suction step in which the first membrane electrode assembly is sucked by a suction portion arranged on the suction plate of the suction head and deformed by a projection portion arranged to protrude from the suction plate;
A suction head raising step of sucking the first membrane electrode assembly to the suction plate and raising the suction head;
Have
A fuel cell membrane, wherein the first membrane electrode assembly is deformed by suction to form a gap with the second membrane electrode assembly placed under the first membrane electrode assembly. Electrode assembly suction conveyance method.


JP2005110476A 2005-04-07 2005-04-07 Device and method for sucking and carrying membrane-electrode assembly Withdrawn JP2006294314A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008050811A1 (en) * 2006-10-26 2008-05-02 Toyota Jidosha Kabushiki Kaisha Separator suction device for fuel cell
JP2008269809A (en) * 2007-04-16 2008-11-06 Toyota Motor Corp Manufacturing method and manufacturing device of fuel battery cell
EP2874218A4 (en) * 2012-07-10 2015-08-12 Nissan Motor Holding device for fuel cell gasket
KR20160114386A (en) * 2015-03-24 2016-10-05 주식회사 리빙케어 Fuel cell gas diffusion layer quality automatic test device
CN106006054A (en) * 2016-07-14 2016-10-12 佛山市联智新创科技有限公司 High-precision plastic grabbing mechanism
KR101724837B1 (en) * 2015-05-06 2017-04-18 현대자동차주식회사 The fuel cell stack stacked device
CN107777355A (en) * 2016-07-14 2018-03-09 赵登林 A kind of plastic plate gripping conveyor structure
EP4296201A1 (en) * 2022-06-24 2023-12-27 FELSOMAT GmbH & Co. KG Cassette for supporting a stack of unbent bar conductors

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008050811A1 (en) * 2006-10-26 2008-05-02 Toyota Jidosha Kabushiki Kaisha Separator suction device for fuel cell
US8394554B2 (en) 2006-10-26 2013-03-12 Toyota Jidosha Kabushiki Kaisha Separator suction device for a fuel cell
JP2008269809A (en) * 2007-04-16 2008-11-06 Toyota Motor Corp Manufacturing method and manufacturing device of fuel battery cell
EP2874218A4 (en) * 2012-07-10 2015-08-12 Nissan Motor Holding device for fuel cell gasket
KR20160114386A (en) * 2015-03-24 2016-10-05 주식회사 리빙케어 Fuel cell gas diffusion layer quality automatic test device
KR101666566B1 (en) * 2015-03-24 2016-10-17 주식회사 리빙케어 Fuel cell gas diffusion layer quality automatic test device
KR101724837B1 (en) * 2015-05-06 2017-04-18 현대자동차주식회사 The fuel cell stack stacked device
CN106006054A (en) * 2016-07-14 2016-10-12 佛山市联智新创科技有限公司 High-precision plastic grabbing mechanism
CN107777355A (en) * 2016-07-14 2018-03-09 赵登林 A kind of plastic plate gripping conveyor structure
CN107777355B (en) * 2016-07-14 2019-06-28 南通迅达橡塑制造有限公司 A kind of plastic plate gripping conveyor structure
EP4296201A1 (en) * 2022-06-24 2023-12-27 FELSOMAT GmbH & Co. KG Cassette for supporting a stack of unbent bar conductors

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