JP6923403B2 - High pressure container - Google Patents

High pressure container Download PDF

Info

Publication number
JP6923403B2
JP6923403B2 JP2017180237A JP2017180237A JP6923403B2 JP 6923403 B2 JP6923403 B2 JP 6923403B2 JP 2017180237 A JP2017180237 A JP 2017180237A JP 2017180237 A JP2017180237 A JP 2017180237A JP 6923403 B2 JP6923403 B2 JP 6923403B2
Authority
JP
Japan
Prior art keywords
body portion
contact wall
wall portion
axial direction
seal member
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.)
Active
Application number
JP2017180237A
Other languages
Japanese (ja)
Other versions
JP2019056395A (en
Inventor
雄基 甲斐
雄基 甲斐
統 澤井
統 澤井
辰佳 山下
辰佳 山下
祐介 加門
祐介 加門
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.)
Nippon Pillar Packing Co Ltd
Toyota Motor Corp
Original Assignee
Nippon Pillar Packing Co Ltd
Toyota Motor Corp
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 Nippon Pillar Packing Co Ltd, Toyota Motor Corp filed Critical Nippon Pillar Packing Co Ltd
Priority to JP2017180237A priority Critical patent/JP6923403B2/en
Publication of JP2019056395A publication Critical patent/JP2019056395A/en
Application granted granted Critical
Publication of JP6923403B2 publication Critical patent/JP6923403B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • Y02E60/32—Hydrogen storage
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Description

本発明は、高圧容器に関する。 The present invention relates to a high pressure container.

下記特許文献１には、高圧水素タンクが開示されている。この高圧水素タンクは、樽型に形成されたライナと、ライナに巻き付けられかつ繊維強化樹脂により構成された補強層とを含んで構成されている。この構成により、ライナの剛性が高められているため、内部に高圧の水素を収容可能とされている。 The following Patent Document 1 discloses a high-pressure hydrogen tank. This high-pressure hydrogen tank includes a barrel-shaped liner and a reinforcing layer wound around the liner and made of a fiber reinforced resin. Due to this configuration, the rigidity of the liner is increased, so that high-pressure hydrogen can be stored inside.

特開２００２−１８８７９４号公報Japanese Unexamined Patent Publication No. 2002-188794

ところで、特許文献１に開示された樽型の高圧水素タンクは、ライナの軸方向両端部に口金が嵌め込み可能に形成されている。したがって、ライナ自体の製造工数が増加するため、製造コストが増大する可能性がある。したがって、上記先行技術はこの点で改良の余地がある。 By the way, the barrel-shaped high-pressure hydrogen tank disclosed in Patent Document 1 is formed so that caps can be fitted into both ends in the axial direction of the liner. Therefore, the manufacturing man-hours of the liner itself increase, which may increase the manufacturing cost. Therefore, the above prior art has room for improvement in this respect.

本発明は上記事実を考慮し、性能を維持しながら製造コストを抑制することができる高圧容器を得ることを目的とする。 In consideration of the above facts, an object of the present invention is to obtain a high-pressure container capable of suppressing manufacturing costs while maintaining performance.

請求項１に記載の発明に係る高圧容器は、円筒状に形成されると共に、軸方向の少なくとも一方側の端部が開口された胴体部と、前記胴体部の前記開口を閉塞すると共に、前記胴体部の軸方向に沿って変位可能とされた口金と、前記胴体部と前記口金との間に設けられると共に環状に形成され、外側面が前記胴体部の内壁に当接する第１当接壁部と、当該第１当接壁部に対向しかつ内側面が前記口金の側壁に当接する第２当接壁部とで周方向に直交する断面形状が前記胴体部の軸方向内側に向けて開口されたシール部材と、前記シール部材の前記第１当接壁部と前記第２当接壁部との間に圧入されたＯリングと、を有し、前記Ｏリングが圧入された前記シール部材が前記胴体部の軸方向外側に摺動可能に配置されている。 The high-pressure container according to the invention according to claim 1 is formed in a cylindrical shape, and has a body portion having at least one end in the axial direction opened, and the opening of the body portion is closed, and the above-mentioned A first contact wall that is provided between the body portion and the base portion that can be displaced along the axial direction of the body portion and is formed in an annular shape so that the outer surface abuts on the inner wall of the body portion. The cross-sectional shape of the portion and the second contact wall portion that faces the first contact wall portion and whose inner side surface abuts on the side wall of the mouthpiece is orthogonal to the circumferential direction toward the inside in the axial direction of the body portion. The seal having an opened seal member and an O-ring press-fitted between the first contact wall portion and the second contact wall portion of the seal member, and the O-ring is press-fitted. The members are slidably arranged outward in the axial direction of the body portion .

請求項１に記載の発明によれば、円筒状に形成された胴体部の軸方向（以下、単に「軸方向」と称する。）の少なくとも一方側の開口された端部には、この開口を閉塞すると共に軸方向に沿って変位可能とされた口金が設けられている。したがって、胴体部の内部に収容された流体の圧力が増加した際に、口金を軸方向外側へ変位させて圧力を吸収できる。この口金と胴体部との間には、環状のシール部材が設けられており、シール部材の第１当接壁部の外側面は胴体部の内壁に当接されていると共に、シール部材の第２当接壁部の内側面は口金の側壁に当接されている。つまり、シール部材によって胴体部と胴体部に対して変位する口金との間は密閉されているため、胴体部と口金との間からの流体の漏れを抑制することができる。これによって、胴体部を筒状にすることができるので、胴体部を押し出し成形により製造することで製造工数を抑制することができる。 According to the invention of claim 1, this opening is provided at an open end on at least one side of the cylindrically formed body portion in the axial direction (hereinafter, simply referred to as "axial direction"). A base that is closed and can be displaced along the axial direction is provided. Therefore, when the pressure of the fluid contained in the body portion increases, the base can be displaced outward in the axial direction to absorb the pressure. An annular seal member is provided between the mouthpiece and the body portion, and the outer surface of the first contact wall portion of the seal member is in contact with the inner wall of the body portion, and the seal member is the first. 2 The inner surface of the contact wall portion is in contact with the side wall of the base. That is, since the seal member seals between the body portion and the base that is displaced with respect to the body portion, it is possible to suppress the leakage of fluid from between the body portion and the base. As a result, the body portion can be made into a tubular shape, so that the manufacturing man-hours can be suppressed by manufacturing the body portion by extrusion molding.

一方、シール部材の第１当接壁部と第２当接壁部との間には、Ｏリングが圧入されていることから、第１当接壁部及び第２当接壁部は胴体部側及び口金側へそれぞれ付勢されている。したがって、胴体部の内部の流体の圧力の変化により胴体部が径方向に変形した場合でも、シール部材は胴体部の変形に追従するため、胴体部と口金との間から流体が漏れるのを抑制することができる。また、シール部材は、周方向に直交する断面形状が軸方向内側に向かって開口しているため、胴体部の内部の流体の圧力が増加すると、流体はシール部材の開口を経てシール部材の第１当接壁部及び第２当接壁部を胴体部側及び口金側へそれぞれ押し付けるように作用する。これによって、胴体部内の流体の圧力が高くなって口金が軸方向外側に変位した場合でも、胴体部と口金との間から流体が漏れるのを抑制することができる。ところで、軸方向に変位する口金に追従してシール部材が変位する場合、胴体部及び口金とシール部材との間の摩擦力によって第１当接壁部及び第２当接壁部には軸方向に沿った剪断力が発生する。しかしながら、第１当接壁部及び第２当接壁部には、圧入されたＯリングとの摩擦力が上述の剪断力をキャンセルする方向に作用するため、第１当接壁部及び第２当接壁部が剪断力によって引き伸ばされるのを抑制することができる。つまり、第１当接壁部及び第２当接壁部が引き伸ばされて損傷するのを抑制することができる。 On the other hand, since the O-ring is press-fitted between the first contact wall portion and the second contact wall portion of the seal member, the first contact wall portion and the second contact wall portion are the body portions. It is urged to the side and the base side, respectively. Therefore, even if the body part is deformed in the radial direction due to a change in the pressure of the fluid inside the body part, the seal member follows the deformation of the body part, so that the fluid is suppressed from leaking from between the body part and the mouthpiece. can do. Further, since the seal member has a cross-sectional shape orthogonal to the circumferential direction that opens inward in the axial direction, when the pressure of the fluid inside the body portion increases, the fluid passes through the opening of the seal member and becomes the first seal member. It acts to press the 1-contact wall portion and the 2nd contact wall portion against the body portion side and the base portion side, respectively. As a result, even when the pressure of the fluid in the body portion increases and the mouthpiece is displaced outward in the axial direction, it is possible to prevent the fluid from leaking from between the body portion and the mouthpiece. By the way, when the seal member is displaced following the base that is displaced in the axial direction, the frictional force between the body portion and the base and the seal member causes the first contact wall portion and the second contact wall portion to be axially displaced. A shearing force is generated along the line. However, since the frictional force with the press-fitted O-ring acts on the first contact wall portion and the second contact wall portion in the direction of canceling the above-mentioned shearing force, the first contact wall portion and the second contact wall portion and the second contact wall portion are used. It is possible to prevent the contact wall portion from being stretched by the shearing force. That is, it is possible to prevent the first contact wall portion and the second contact wall portion from being stretched and damaged.

請求項１記載の本発明に係る高圧容器は、製造コストを抑制することができるという優れた効果を有する。 The high-pressure container according to the present invention according to claim 1 has an excellent effect that the manufacturing cost can be suppressed.

一実施形態に係る高圧容器を示す側面図である。It is a side view which shows the high pressure container which concerns on one Embodiment. 図１におけるＡ−Ａ線に沿って切断した状態を示す断面図である。It is sectional drawing which shows the state which cut along the line AA in FIG. 図２におけるＺ部を示す拡大図である。It is an enlarged view which shows the Z part in FIG. 図３におけるＹ部を示す拡大図である。It is an enlarged view which shows the Y part in FIG.

以下、図１〜図４を用いて、本発明に係る高圧容器の一実施形態について説明する。 Hereinafter, an embodiment of the high-pressure container according to the present invention will be described with reference to FIGS. 1 to 4.

図示しない車両に設けられたタンクモジュールは、図１に示される高圧容器としての高圧タンク１０を複数組み合わせることで構成されており、一例として、燃料電池車両のフロアパネル（不図示）の車両下方側に複数並べた高圧タンク１０同士を連結させた構成とされている。 The tank module provided in the vehicle (not shown) is configured by combining a plurality of high-pressure tanks 10 as high-pressure containers shown in FIG. 1, and as an example, the lower side of the floor panel (not shown) of the fuel cell vehicle. The high-pressure tanks 10 arranged in a plurality of units are connected to each other.

高圧タンク１０は、一例として車両前後方向を軸方向（長手方向）とする略円柱状に形成されている。この高圧タンク１０は、図２に示されるように、胴体部１４と、第１繊維強化樹脂部材１６と、第２繊維強化樹脂部材１８と、を含んで構成されている。胴体部１４は、軸方向の両端部が開口された円筒状に形成されかつ一例としてアルミニウム合金により構成されている。なお、胴体部１４は、フロアパネルの車両下方側の空いているスペース内に収容可能な径寸法とされている。 As an example, the high-pressure tank 10 is formed in a substantially columnar shape with the vehicle front-rear direction as the axial direction (longitudinal direction). As shown in FIG. 2, the high-pressure tank 10 includes a body portion 14, a first fiber-reinforced resin member 16, and a second fiber-reinforced resin member 18. The body portion 14 is formed in a cylindrical shape with both ends in the axial direction opened, and is made of an aluminum alloy as an example. The fuselage portion 14 has a diameter that can be accommodated in an empty space on the lower side of the floor panel of the vehicle.

第１繊維強化樹脂部材１６は、シート状のＣＦＲＰ（炭素繊維強化樹脂）を胴体部１４の外周面２０（図３参照）に巻き付けることで構成されている。この第１繊維強化樹脂部材１６の内部には、図示しない炭素繊維が胴体部１４の周方向に沿って配列されている。換言すると、第１繊維強化樹脂部材１６の繊維方向は、胴体部１４の周方向とされている。 The first fiber reinforced resin member 16 is formed by winding a sheet-shaped CFRP (carbon fiber reinforced resin) around the outer peripheral surface 20 (see FIG. 3) of the body portion 14. Inside the first fiber reinforced resin member 16, carbon fibers (not shown) are arranged along the circumferential direction of the body portion 14. In other words, the fiber direction of the first fiber reinforced resin member 16 is the circumferential direction of the body portion 14.

胴体部１４の軸方向一方側の端部の内部には、口金２２が挿入されている。この口金２２は、胴体部１４に対して軸方向に沿って相対移動可能とされている。なお、高圧タンク１０の胴体部１４における軸方向他方側の端部は、胴体部１４における軸方向一方側の端部と同様に、内部に口金２２が軸方向に沿って相対移動可能に挿入されている。 A mouthpiece 22 is inserted inside the end portion of the body portion 14 on one side in the axial direction. The base 22 is movable relative to the body portion 14 along the axial direction. At the end of the body portion 14 of the high-pressure tank 10 on the other side in the axial direction, the base 22 is inserted into the body portion 14 so as to be relatively movable along the axial direction, similarly to the end portion on the one side in the axial direction of the body portion 14. ing.

口金２２は、軸方向外方側に向かって凸となりかつ車両前後方向を軸方向とする略半球状に形成されている。この口金２２は、胴体挿入部２４と、連通流路２６とを有している。胴体挿入部２４は、軸方向内方側へ向かって突出された略円柱状に形成されている。 The base 22 is formed in a substantially hemispherical shape that is convex toward the outer side in the axial direction and has the axial direction in the front-rear direction of the vehicle. The mouthpiece 22 has a body insertion portion 24 and a communication flow path 26. The body insertion portion 24 is formed in a substantially columnar shape protruding inward in the axial direction.

図３に示されるように、胴体挿入部２４の側壁２８は、胴体部１４の内壁４２に対向して配置されている。また、胴体挿入部２４の先端部には、外縁部を切り欠くことで形成されたパッキン収容部３０が設けられており、このパッキン収容部３０の内部にシール部材３２が収められている。 As shown in FIG. 3, the side wall 28 of the body insertion portion 24 is arranged so as to face the inner wall 42 of the body portion 14. Further, a packing accommodating portion 30 formed by cutting out an outer edge portion is provided at the tip end portion of the body insertion portion 24, and the seal member 32 is housed inside the packing accommodating portion 30.

シール部材３２は、胴体部１４の中心軸Ｃを中心としたゴム製の環状に形成されており、第１当接壁部３４と、第２当接壁部３６と、を含んで構成されている。第１当接壁部３４は、略軸方向に沿って延設されている。また、第２当接壁部３６は、第１当接壁部３４と対向しかつ第１当接壁部３４に対して胴体部１４の径方向内側に配置されると共に、軸方向に沿って延設されている。そして、第１当接壁部３４の軸方向外側部と第２当接壁部３６の軸方向外側部とは、胴体部１４の径方向に連結されている。これにより、シール部材３２は、周方向に直交する断面形状が軸方向内側に向けて開口された略Ｃ字状とされている。なお、図４に示されるように、第１当接壁部３４における胴体部１４の径方向の外側面４０は、胴体部１４の内壁４２に当接されており、第２当接壁部３６における胴体部１４の径方向の内側面４４は、口金２２のパッキン収容部３０における側壁４６に当接されている。また、本実施形態ではシール部材３２は、ゴム製とされているが、これに限らず、樹脂等その他の材料により構成されていてもよい。さらに、シール部材３２は、周方向に直交する断面形状が略Ｃ字状とされているが、これに限らず、軸方向内側に向けて開口されたコの字状やＵ字状等とされていてもよい。 The seal member 32 is formed in an annular shape made of rubber centered on the central axis C of the body portion 14, and includes a first contact wall portion 34 and a second contact wall portion 36. There is. The first contact wall portion 34 extends along a substantially axial direction. Further, the second contact wall portion 36 is arranged so as to face the first contact wall portion 34 and radially inside the body portion 14 with respect to the first contact wall portion 34, and along the axial direction. It has been extended. The axially outer portion of the first contact wall portion 34 and the axially outer portion of the second contact wall portion 36 are connected in the radial direction of the body portion 14. As a result, the seal member 32 has a substantially C-shape having a cross-sectional shape orthogonal to the circumferential direction opened inward in the axial direction. As shown in FIG. 4, the radial outer surface 40 of the body portion 14 in the first contact wall portion 34 is in contact with the inner wall 42 of the body portion 14, and the second contact wall portion 36 is in contact with the inner wall 42. The radial inner surface 44 of the body portion 14 in the above is in contact with the side wall 46 of the packing accommodating portion 30 of the base 22. Further, in the present embodiment, the seal member 32 is made of rubber, but the present invention is not limited to this, and the seal member 32 may be made of other materials such as resin. Further, the seal member 32 has a substantially C-shaped cross section orthogonal to the circumferential direction, but is not limited to this, and has a U-shape, a U-shape, or the like opened inward in the axial direction. You may be.

シール部材３２の第１当接壁部３４と第２当接壁部３６との間には、Ｏリング３５が圧入されている。このＯリング３５は、一例としてゴム製とされており、第１当接壁部３４の内側面４１から第２当接壁部３６の内側面４５に亘って当接されている。なお、第１当接壁部３４及び第２当接壁部３６の先端部は、Ｏリング３５と当接しないよう構成されている。 An O-ring 35 is press-fitted between the first contact wall portion 34 and the second contact wall portion 36 of the seal member 32. The O-ring 35 is made of rubber as an example, and is in contact with the inner side surface 41 of the first contact wall portion 34 to the inner side surface 45 of the second contact wall portion 36. The tips of the first contact wall portion 34 and the second contact wall portion 36 are configured so as not to come into contact with the O-ring 35.

図３に示されるように、胴体挿入部２４の端面２５には、複数（本実施形態では一例として４つ）の締結孔５０が形成されている。また、端面２５には、円盤状に形成された保持板５２が当接されており、この保持板５２は、軸方向視にて中心部に口金２２の凹部５４と連続する連通孔５６が形成されている。さらに、保持板５２には、端面２５の締結孔５０に対応した位置に板厚方向に貫通された貫通孔５８が形成されており、この貫通孔５８と端面２５の締結孔５０とにボルト６０をそれぞれ挿通させて締結することで、端面２５に保持板５２が取り付けられている。なお、保持板５２の径は、胴体挿入部２４の一般部（パッキン収容部３０以外の部位）と略同一に設定されている。つまり、保持板５２の外周面６２は、胴体部１４の内壁４２と対向されている。以上の口金２２における胴体挿入部２４によって、胴体部１４の軸方向一方側の端部と他方側の端部とがそれぞれ閉塞されている。 As shown in FIG. 3, a plurality of fastening holes 50 (four as an example in this embodiment) are formed on the end surface 25 of the body insertion portion 24. Further, a disk-shaped holding plate 52 is in contact with the end surface 25, and the holding plate 52 has a communication hole 56 formed in the center thereof in the central portion, which is continuous with the recess 54 of the base 22. Has been done. Further, the holding plate 52 is formed with a through hole 58 penetrating in the plate thickness direction at a position corresponding to the fastening hole 50 of the end surface 25, and a bolt 60 is formed between the through hole 58 and the fastening hole 50 of the end surface 25. The holding plate 52 is attached to the end face 25 by inserting and fastening the respective ends. The diameter of the holding plate 52 is set to be substantially the same as the general portion (the portion other than the packing accommodating portion 30) of the body insertion portion 24. That is, the outer peripheral surface 62 of the holding plate 52 faces the inner wall 42 of the body portion 14. The body insertion portion 24 of the mouthpiece 22 closes one end of the body 14 in the axial direction and the other end of the body 14, respectively.

第２繊維強化樹脂部材１８は、第１繊維強化樹脂部材１６及び口金２２の外側面に設けられている。具体的には、第２繊維強化樹脂部材１８は、第１繊維強化樹脂部材１６と同様にシート状のＣＦＲＰ（炭素繊維強化樹脂）とされており、第１繊維強化樹脂部材１６及び口金２２の外側面に、この第２繊維強化樹脂部材１８が軸方向に沿って一体的に巻き付けられている。第２繊維強化樹脂部材１８の内部には、図示しない炭素繊維が軸方向に沿って配列されている。換言すると、第２繊維強化樹脂部材１８の繊維方向は、胴体部１４の軸方向とされている。なお、第２繊維強化樹脂部材１８の繊維量は、第１繊維強化樹脂部材１６の繊維量の半分とされている。また、第２繊維強化樹脂部材１８は、軸方向に沿って弾性的に多少の伸縮が可能とされている。 The second fiber reinforced resin member 18 is provided on the outer surface of the first fiber reinforced resin member 16 and the base 22. Specifically, the second fiber reinforced resin member 18 is a sheet-shaped CFRP (carbon fiber reinforced plastic) like the first fiber reinforced resin member 16, and the first fiber reinforced resin member 16 and the base 22 The second fiber reinforced resin member 18 is integrally wound around the outer side surface along the axial direction. Inside the second fiber reinforced resin member 18, carbon fibers (not shown) are arranged along the axial direction. In other words, the fiber direction of the second fiber reinforced resin member 18 is the axial direction of the body portion 14. The amount of fibers in the second fiber-reinforced resin member 18 is half the amount of fibers in the first fiber-reinforced resin member 16. Further, the second fiber reinforced resin member 18 can be elastically slightly expanded and contracted along the axial direction.

口金２２内の連通流路２６には、図示しないバルブが接続可能とされており、これにより連通流路２６内を流れる流体の量をコントロール可能とされている。そして、連通流路２６は、図示しない燃料電池スタックや供給パイプ等に接続されている。 A valve (not shown) can be connected to the communication flow path 26 in the mouthpiece 22, whereby the amount of fluid flowing in the communication flow path 26 can be controlled. The communication flow path 26 is connected to a fuel cell stack, a supply pipe, or the like (not shown).

（作用・効果）
次に、本実施形態の作用並びに効果を説明する。 (Action / effect)
Next, the operation and effect of this embodiment will be described.

本実施形態では、図２に示されるように、円筒状に形成された胴体部１４の軸方向の少なくとも一方側の開口された端部には、この開口を閉塞すると共に軸方向に沿って変位可能とされた口金２２が設けられている。したがって、胴体部１４の内部に収容された流体の圧力が増加した際に、口金２２を軸方向外側へ変位させて圧力を吸収できる。この口金２２と胴体部１４との間には、環状のシール部材３２が設けられており、図４に示されるように、シール部材３２の第１当接壁部３４の外側面４０は胴体部１４の内壁４２に当接されていると共に、シール部材３２の第２当接壁部３６の内側面４４は口金２２のパッキン収容部３０における側壁４６に当接されている。つまり、シール部材３２によって胴体部１４と胴体部１４に対して変位する口金２２との間は密閉されているため、胴体部１４と口金２２との間からの流体の漏れを抑制することができる。これによって、胴体部１４を筒状にすることができるので、胴体部１４を押し出し成形により製造することで製造工数を抑制することができる。 In the present embodiment, as shown in FIG. 2, at least one of the axially opened ends of the cylindrically formed body portion 14 is closed and displaced along the axial direction. A possible base 22 is provided. Therefore, when the pressure of the fluid contained in the body portion 14 increases, the base 22 can be displaced outward in the axial direction to absorb the pressure. An annular sealing member 32 is provided between the mouthpiece 22 and the body portion 14, and as shown in FIG. 4, the outer surface 40 of the first contact wall portion 34 of the sealing member 32 is the body portion. In addition to being in contact with the inner wall 42 of 14, the inner side surface 44 of the second contact wall portion 36 of the seal member 32 is in contact with the side wall 46 in the packing accommodating portion 30 of the base 22. That is, since the seal member 32 seals between the body portion 14 and the base 22 that is displaced with respect to the body portion 14, it is possible to suppress fluid leakage from between the body portion 14 and the base 22. .. As a result, the body portion 14 can be made into a tubular shape, so that the manufacturing man-hours can be suppressed by manufacturing the body portion 14 by extrusion molding.

一方、シール部材３２の第１当接壁部３４と第２当接壁部３６との間には、Ｏリング３５が圧入されていることから、第１当接壁部３４及び第２当接壁部３６は胴体部１４側及び口金２２側へそれぞれ付勢されている。したがって、胴体部１４の内部の流体の圧力の変化により胴体部１４が径方向に変形した場合でも、シール部材３２は胴体部１４の変形に追従するため、胴体部１４と口金２２との間から流体が漏れるのを抑制することができる。また、シール部材３２は、周方向に直交する断面形状が軸方向内側に向かって開口しているため、胴体部１４の内部の流体の圧力が増加すると、流体はシール部材３２の開口を経てシール部材３２の第１当接壁部３４及び第２当接壁部３６を胴体部１４側及び口金２２側へそれぞれ押し付けるように作用することから、胴体部１４内の流体の圧力が高くなって口金２２が軸方向外側に変位した場合でも、胴体部１４と口金２２との間から流体が漏れるのを抑制することができる。ところで、軸方向に変位する口金２２に追従してシール部材３２が変位する場合、胴体部１４及び口金２２とシール部材３２との間の摩擦力によって第１当接壁部３４及び第２当接壁部３６には軸方向に沿った剪断力が発生する。しかしながら、第１当接壁部３４及び第２当接壁部３６には、圧入されたＯリング３５との摩擦力が上述の剪断力をキャンセルする方向に作用するため、第１当接壁部３４及び第２当接壁部３６が剪断力によって引き伸ばされるのを抑制することができる。つまり、第１当接壁部３４及び第２当接壁部３６が引き伸ばされて損傷するのを抑制することができる。これにより、性能を維持しながら製造コストを抑制することができる。 On the other hand, since the O-ring 35 is press-fitted between the first contact wall portion 34 and the second contact wall portion 36 of the seal member 32, the first contact wall portion 34 and the second contact wall portion 34 and the second contact are made. The wall portion 36 is urged toward the body portion 14 side and the base portion 22 side, respectively. Therefore, even if the body portion 14 is deformed in the radial direction due to a change in the pressure of the fluid inside the body portion 14, the seal member 32 follows the deformation of the body portion 14, and therefore, from between the body portion 14 and the base 22. It is possible to prevent the fluid from leaking. Further, since the seal member 32 has a cross-sectional shape orthogonal to the circumferential direction that opens inward in the axial direction, when the pressure of the fluid inside the body portion 14 increases, the fluid seals through the opening of the seal member 32. Since the first contact wall portion 34 and the second contact wall portion 36 of the member 32 act to be pressed against the body portion 14 side and the mouthpiece 22 side, respectively, the pressure of the fluid in the body portion 14 increases and the mouthpiece Even when the 22 is displaced outward in the axial direction, it is possible to prevent the fluid from leaking from between the body portion 14 and the base 22. By the way, when the seal member 32 is displaced following the base 22 that is displaced in the axial direction, the first contact wall portion 34 and the second contact are made by the frictional force between the body portion 14 and the base 22 and the seal member 32. A shearing force is generated in the wall portion 36 along the axial direction. However, since the frictional force with the press-fitted O-ring 35 acts on the first contact wall portion 34 and the second contact wall portion 36 in the direction of canceling the above-mentioned shearing force, the first contact wall portion It is possible to prevent the 34 and the second contact wall portion 36 from being stretched by the shearing force. That is, it is possible to prevent the first contact wall portion 34 and the second contact wall portion 36 from being stretched and damaged. As a result, the manufacturing cost can be suppressed while maintaining the performance.

なお、本実施形態ではＯリング３５は、ゴム製とされているが、これに限らず、シール部材３２との間に摩擦力が発生する素材であれば樹脂等その他の材料により構成されていてもよい。 In the present embodiment, the O-ring 35 is made of rubber, but the O-ring 35 is not limited to this, and is made of other materials such as resin as long as it is a material that generates a frictional force with the sealing member 32. May be good.

また、口金２２は、胴体部１４における軸方向一方側の端部と他方側の端部との内部にそれぞれ挿入された構成とされているが、これに限らず、胴体部１４における軸方向の少なくとも一方の端部にのみ口金２２が設けられた構成としてもよい。 Further, the mouthpiece 22 is configured to be inserted inside the end portion on one side in the axial direction and the end portion on the other side in the axial direction of the body portion 14, but the present invention is not limited to this, and the base portion 22 is not limited to this. The base 22 may be provided only at at least one end.

以上、本発明の実施形態について説明したが、本発明は、上記に限定されるものでなく、その主旨を逸脱しない範囲内において上記以外にも種々変形して実施することが可能であることは勿論である。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above, and it is possible to carry out various modifications other than the above within a range not deviating from the gist thereof. Of course.

１０ 高圧タンク（高圧容器）
１４ 胴体部
２２ 口金
３２ シール部材
３４ 第１当接壁部
３５ Ｏリング
３６ 第２当接壁部
４０ 外側面
４２ 内壁
４４ 内側面
４６ 側壁 10 High-pressure tank (high-pressure container)
14 Body part 22 Mouthpiece 32 Sealing member 34 First contact wall part 35 O-ring 36 Second contact wall part 40 Outer side surface 42 Inner wall 44 Inner side surface 46 Side wall

Claims (1)

円筒状に形成されると共に、軸方向の少なくとも一方側の端部が開口された胴体部と、
前記胴体部の前記開口を閉塞すると共に、前記胴体部の軸方向に沿って変位可能とされた口金と、
前記胴体部と前記口金との間に設けられると共に環状に形成され、外側面が前記胴体部の内壁に当接する第１当接壁部と、当該第１当接壁部に対向しかつ内側面が前記口金の側壁に当接する第２当接壁部とで周方向に直交する断面形状が前記胴体部の軸方向内側に向けて開口されたシール部材と、
前記シール部材の前記第１当接壁部と前記第２当接壁部との間に圧入されたＯリングと、を有し、
前記Ｏリングが圧入された前記シール部材が前記胴体部の軸方向外側に摺動可能に配置されている、
高圧容器。

A fuselage that is formed in a cylindrical shape and has at least one end in the axial direction open.
A mouthpiece that closes the opening of the body portion and is displaceable along the axial direction of the body portion.
A first contact wall portion that is provided between the body portion and the mouthpiece and is formed in an annular shape and whose outer surface abuts on the inner wall of the body portion, and an inner surface surface that faces the first contact wall portion and faces the first contact wall portion. A seal member having a cross-sectional shape orthogonal to the circumferential direction of the second contact wall portion that abuts on the side wall of the mouthpiece is opened toward the inside in the axial direction of the body portion.
Have a, and O-ring press-fitted between the first contact wall portion and the second contact wall portion of the sealing member,
The seal member into which the O-ring is press-fitted is slidably arranged outward in the axial direction of the body portion.
High pressure container.
JP2017180237A 2017-09-20 2017-09-20 High pressure container Active JP6923403B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017180237A JP6923403B2 (en) 2017-09-20 2017-09-20 High pressure container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017180237A JP6923403B2 (en) 2017-09-20 2017-09-20 High pressure container

Publications (2)

Publication Number Publication Date
JP2019056395A JP2019056395A (en) 2019-04-11
JP6923403B2 true JP6923403B2 (en) 2021-08-18

Family

ID=66106213

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017180237A Active JP6923403B2 (en) 2017-09-20 2017-09-20 High pressure container

Country Status (1)

Country Link
JP (1) JP6923403B2 (en)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013299A (en) * 1975-11-14 1977-03-22 Parker-Hannifin Corporation Sealing ring
US4508356A (en) * 1984-06-06 1985-04-02 Robert Janian Modified C-shaped mechanical spring seal
US5306021A (en) * 1986-02-25 1994-04-26 Morvant John D V-shaped seal with anti-extrusion section
DE3923988C2 (en) * 1989-07-20 1993-10-21 Daimler Benz Ag Sealing arrangement
JPH0651627U (en) * 1992-12-25 1994-07-15 エヌオーケー株式会社 Sealing device
JP4450521B2 (en) * 2001-02-15 2010-04-14 三菱マテリアル株式会社 Sealing material
JP4314037B2 (en) * 2003-01-24 2009-08-12 株式会社豊田自動織機 High pressure tank
JP4311218B2 (en) * 2004-02-12 2009-08-12 Ｎｏｋ株式会社 Seal structure
JP2006292005A (en) * 2005-04-07 2006-10-26 Showa Engineering Co Ltd Gas seal structure
JP2008267449A (en) * 2007-04-18 2008-11-06 Nok Corp Backup ring
EP2314899B1 (en) * 2009-10-21 2012-01-04 Carl Freudenberg KG Seal device with a high cold flexibility for sealing a piston
WO2013038855A1 (en) * 2011-09-13 2013-03-21 Nok株式会社 Gasket and sealing structure

Also Published As

Publication number Publication date
JP2019056395A (en) 2019-04-11

Similar Documents

Publication Publication Date Title
JP7371707B2 (en) high pressure vessel
JP6572913B2 (en) High pressure vessel
US10323795B2 (en) High pressure tank
JP7167465B2 (en) pressure vessel
JP6969950B2 (en) High pressure container
JP6487480B2 (en) High pressure tank
JP2019035440A (en) High pressure vessel and body reinforcement layer winding method
JP2019184025A (en) High pressure tank seal structure
US10704738B2 (en) High-pressure vessel
US10948129B2 (en) High pressure tank
US10273979B2 (en) Accumulator
JP6923403B2 (en) High pressure container
JP2008014342A (en) Tank
US20180209589A1 (en) High-pressure container
JP6608601B2 (en) Pressure vessel
JP2019158005A (en) High-pressure vessel
JP6675169B2 (en) Pressure vessel sealed structure
JP5375296B2 (en) Hydrogen tank
US20230134258A1 (en) High-pressure tank
JP2021060100A (en) High pressure tank
JP2020128784A (en) High-pressure vessel
JP2017145920A (en) Tank mounting structure
JP2016164427A (en) Pressure container
JP2022082220A (en) Guide assembly, damper, and manufacturing method of guide assembly
JP2019157873A (en) High-pressure gas storage tank

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20200206

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20201214

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20201222

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210212

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20210706

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20210729

R151 Written notification of patent or utility model registration

Ref document number: 6923403

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151