公开(公告)号：US20230400078A1

公开(公告)日：2023-12-14

申请号：US18033923

申请日：2021-10-15

Applicant: NHK SPRING Co., Ltd.

Inventor： Yoshio YAMADA ,  Hironobu IMAIZUMI ,  Norihiro TAJIMA ,  Shuji TAKAHASHI

IPC: F16F1/18

CPC classification number: F16F1/185 ,  F16F2228/007 ,  F16F2238/022

Abstract: The spring member (1, 2, 3) includes a conductive plate (11) and a support plate (12), the conductive plate is formed of a material in which at least one of electrical conductivity and thermal conductivity thereof is higher than that of a material forming the support plate, the support plate is formed of the material having a higher Young's modulus than that of the material forming the conductive plate, two end portions of the conductive plate in a second direction (X) are provided with first contact portions (13) that contact a first pressed body (W1), an intermediate portion of the conductive plate in the second direction is provided with a second contact portion (14) that contacts a second pressed body (W2), the two end portions of the conductive plate in the second direction are engaged with two end portions of the support plate in the second direction, an intermediate portion of the support plate in the second direction is provided with a third contact portion (15) that contacts the second contact portion, and the second contact portion is sandwiched between the third contact portion and the second pressed body in a first direction (Z).

公开(公告)号：US20240133442A1

公开(公告)日：2024-04-25

申请号：US18278512

申请日：2022-02-25

Applicant: NHK SPRING Co., Ltd.

Inventor： Yoshio YAMADA ,  Hironobu IMAIZUMI ,  Norihiro TAJIMA ,  Shuji TAKAHASHI

IPC: F16F1/18

CPC classification number: F16F1/18

Abstract: A spring member is provided between two pressed bodies facing each other in a first direction and includes base plates stacked in the first direction. Each base plate is provided with spring protrusions protruding toward either one pressed body of the two pressed bodies and pressing the two pressed bodies in directions such that the pressed bodies move away from each other in the first direction. Between two base plates adjacent to each other in the first direction, a base plate positioned closer to the one pressed body is provided with an insertion hole into which a spring protrusion of the other base plate is inserted in a state of penetrating therethrough in the first direction. Among portions in an along-plane direction along a plane orthogonal to the first direction provided with the spring protrusions, the spring constant of at least one portion is different from that of another portion.

公开(公告)号：US20160141643A1

公开(公告)日：2016-05-19

申请号：US14901367

申请日：2014-06-30

Applicant: NISSAN MOTOR CO., LTD. ,  NHK SPRING CO., LTD.

Inventor： Yosuke FUKUYAMA ,  Takeshi SHIOMI ,  Yusuke TERADA ,  Norihiro TAJIMA

IPC: H01M8/0297 ,  H01M8/2404

CPC classification number: H01M8/0297 ,  H01M8/0206 ,  H01M8/0247 ,  H01M8/2404 ,  H01M8/247 ,  H01M2008/1095

Abstract: A deformation absorption member for a fuel-cell-stack disposed between an anode side separator and a cathode side separator. The deformation absorption member includes a thin-board-like base material, and a plurality of raised pieces in which extension portions extended from proximal ends are arranged in a grid pattern. Each raised piece of the plurality of raised pieces is formed in a non-rectangular shape in which the width of the extension portion is shorter than the width of the proximal end, and plurality of raised pieces are configured so that the directions of the extension portions of mutually adjacent raised pieces are alternately arranged, and positions of the proximal ends of the mutually adjacent raised pieces are arranged in at least overlapping positions.

Abstract translation: 一种设置在阳极侧隔板和阴极侧隔板之间的燃料电池堆的变形吸收构件。 变形吸收构件包括薄板状基材，并且从基端延伸的延伸部分以网格图案布置的多个凸起件。 多个凸起片的每个凸起片形成为延伸部的宽度比基端的宽度短的非矩形形状，并且多个凸起构造成使得延伸部的方向 相互相邻的凸起片交替布置，并且相互相邻的凸起的基端的位置至少布置在重叠位置。

公开(公告)号：US20160133948A1

公开(公告)日：2016-05-12

申请号：US14901136

申请日：2014-06-02

Applicant: NISSAN MOTOR CO., LTD. ,  NHK SPRING CO., LTD

Inventor： Yosuke FUKUYAMA ,  Takeshi SHIOMI ,  Yusuke TERADA ,  Norihiro TAJIMA

IPC: H01M8/026 ,  H01M8/2404

CPC classification number: H01M8/0297 ,  H01M8/0206 ,  H01M8/0254 ,  H01M8/0258 ,  H01M8/026 ,  H01M8/0267 ,  H01M8/0271 ,  H01M8/2404 ,  H01M8/2483 ,  H01M2008/1095 ,  Y02P70/56

Abstract: A fuel-cell-stack manufacturing method, includes arranging an extension portion extended from a proximal end of a raised piece on one surface of a base material disposed so as to abut at least one of a cathode side separator and the anode side separator, and setting an interval between the anode side separator and the cathode side separator along a lamination direction so that deformation of the raised piece exceeds an elastic deformation region and enters a plastic deformation region, and is also in a region in which the proximal end moved due to the deformation does not come in contact with the cathode side separator or the anode side separator.

Abstract translation: 一种燃料电池堆的制造方法，其特征在于，具备将从突起的基端延伸的延伸部配置在与所述阴极侧隔板和所述阳极侧隔板中的至少一方配置的基材的一个面上， 沿层叠方向设置阳极侧隔板和阴极侧隔板之间的间隔，使得凸起件的变形超过弹性变形区域并进入塑性变形区域，并且也在基端由于 变形不会与阴极侧隔板或阳极侧隔板接触。

公开(公告)号：US20240229886A9

公开(公告)日：2024-07-11

申请号：US18278512

申请日：2022-02-25

Applicant: NHK SPRING Co., Ltd.

Inventor： Yoshio YAMADA ,  Hironobu IMAIZUMI ,  Norihiro TAJIMA ,  Shuji TAKAHASHI

IPC: F16F1/18

CPC classification number: F16F1/18

Abstract: A spring member is provided between two pressed bodies facing each other in a first direction and includes base plates stacked in the first direction. Each base plate is provided with spring protrusions protruding toward either one pressed body of the two pressed bodies and pressing the two pressed bodies in directions such that the pressed bodies move away from each other in the first direction. Between two base plates adjacent to each other in the first direction, a base plate positioned closer to the one pressed body is provided with an insertion hole into which a spring protrusion of the other base plate is inserted in a state of penetrating therethrough in the first direction. Among portions in an along-plane direction along a plane orthogonal to the first direction provided with the spring protrusions, the spring constant of at least one portion is different from that of another portion.

公开(公告)号：US20210003184A1

公开(公告)日：2021-01-07

申请号：US16982738

申请日：2019-03-26

Applicant: NHK SPRING CO., LTD.

Inventor： Mitsuteru MIMURA ,  Norihiro TAJIMA ,  Yosuke KAWAI ,  Shuji TAKAHASHI

IPC: F16F1/12 ,  F16F1/04

Abstract: A seat member has a seat portion, a receiving surface of which comes into contact with a bearing surface of an end turn portion, a mounting shaft portion protruded from the receiving surface of the seat portion, and an enlarged diameter portion formed at the front end of the mounting shaft portion for guiding press-fitting, in a cross section along an axial direction of a coil spring, an outer diameter of the enlarged diameter portion is set larger than an inner diameter of the end turn portion and an axial length of the enlarged diameter portion is set so that at least a maximum diagonal length of the seat member is larger than an inter-element wire distance.

公开(公告)号：US20240175533A1

公开(公告)日：2024-05-30

申请号：US18280591

申请日：2022-03-01

Applicant: NHK SPRING Co., Ltd.

Inventor： Yoshio YAMADA ,  Norihiro TAJIMA ,  Shuji TAKAHASHI ,  Atsushi YONEOKA

IPC: F16L55/05

CPC classification number: F16L55/05

Abstract: A pulsation damping member includes a first metal plate and a second metal plate, a crest portion of the second metal plate enters inside a crest portion of the first metal plate, a valley portion of the first metal plate enters inside a valley portion of the second metal plate, a size in the axial direction of an outer end portion of an expansion/contraction space positioned on an outermost side in a radial direction and continuous with joint parts increases toward an inner side in the radial direction, and a first constricted portion having a smallest size in the axial direction in a portion of the expansion/contraction space positioned on an inner side with respect to the outer end portion in the radial direction is positioned on a radially outward side from a center portion between the central axis and the joint parts in the radial direction.

公开(公告)号：US20160372762A1

公开(公告)日：2016-12-22

申请号：US14901274

申请日：2014-06-02

Applicant: NISSAN MOTOR CO., LTD. ,  NHK SPRING CO., LTD.

Inventor： Yosuke FUKUYAMA ,  Takeshi SHIOMI ,  Yusuke TERADA ,  Norihiro TAJIMA

IPC: H01M8/0271 ,  H01M8/0297

CPC classification number: H01M8/0271 ,  H01M8/006 ,  H01M8/0202 ,  H01M8/0254 ,  H01M8/0273 ,  H01M8/0297 ,  H01M8/248 ,  H01M2008/1095

Abstract: An attachment structure for a deformation absorption member of a fuel-cell-stack includes a first raised piece raised from one surface of a base material in a grid pattern, and having an extension portion extending from a proximal end, the extension portion abutting at least one of the cathode side separator or the anode side separator, a second raised piece having a proximal end, and a joint portion formed by partially joining a location between the proximal end of the first raised piece and the proximal end of the second raised piece, proximal end of the first raised piece being adjacent the proximal end of the second raised piece in a second direction that intersects a first direction taken from the proximal end of the first raised piece to an extension portion side, to the at least one of the anode side separator and the cathode side separator.

Abstract translation: 用于燃料电池堆的变形吸收构件的附接结构包括从基材的一个表面以网格图案升起的第一凸起件，并且具有从近端延伸的延伸部分，所述延伸部分至少邻接 阴极侧隔板或阳极侧隔板中的一个，具有近端的第二隆起件和通过部分地接合第一隆起件的近端和第二隆起件的近端之间的位置而形成的接合部， 所述第一凸起件的近端在与所述第一凸起部分的近端相对于延伸部分一侧的第一方向相交的第二方向上邻近所述第二凸起件的近端延伸至所述阳极中的至少一个 侧分离器和阴极侧分离器。

公开(公告)号：US20150349354A1

公开(公告)日：2015-12-03

申请号：US14654987

申请日：2013-11-08

Applicant: NISSAN MOTOR CO., LTD. ,  NHK SPRING CO., LTD.

Inventor： Yosuke FUKUYAMA ,  Keita IRITSUKI ,  Yusuke TERADA ,  Norihiro TAJIMA

IPC: H01M8/02 ,  H01M8/10 ,  H01M8/24

CPC classification number: H01M8/0206 ,  F28D9/005 ,  F28D2021/0043 ,  F28F2240/00 ,  F28F2265/26 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/0297 ,  H01M8/1004 ,  H01M8/241 ,  H01M8/2483 ,  H01M2008/1095

Abstract: A fuel cell stack has a stacked plurality of single cells. Each of the single cells has a membrane electrode assembly, and a pair of separators sandwiching the membrane electrode assembly therebetween. A cooling fluid channel where a cooling fluid flows is formed between adjacent single cells. The fuel cell stack further comprises a displacement absorbing member disposed in the cooling fluid channel to absorb a displacement between the single cells. The displacement absorbing member comprises a channel flow resistance reduction structure that reduces a channel flow resistance of the cooling fluid channel against the cooling fluid.

Abstract translation: 燃料电池堆具有堆叠的多个单电池。 单个电池单元具有膜电极组件和将膜电极组件夹在其间的一对分离器。 在相邻的单个电池之间形成冷却流体流动的冷却流体通道。 燃料电池堆还包括设置在冷却流体通道中以吸收单个电池之间的位移的位移吸收构件。 位移吸收构件包括通道流动阻力减小结构，其降低冷却流体通道相对于冷却流体的通道流动阻力。