公开(公告)号：US20210194019A1

公开(公告)日：2021-06-24

申请号：US17128547

申请日：2020-12-21

Applicant: NOK CORPORATION ,  Honda Motor Co., Ltd.

Inventor： Yohei SANO ,  Shigeru WATANABE ,  Akihito GIGA ,  Suguru OHMORI

IPC: H01M8/0228 ,  H01M8/0206 ,  H01M8/0276 ,  H01M8/10

Abstract: A method includes a forming step of forming a first metal separator and a second metal separator each including a protruding sealing bead portion and a protruding stopper bead portion; a joining step of joining surfaces of the first metal separator and the second metal separator on sides opposite to sides on which their respective sealing bead portions protrude, and attaching seal members in an extension direction or on distal ends of the sealing bead portion; and a preload applying step of applying preload to a bead seal section formed of one pair of the sealing bead portions and the seal members and a stopper section formed of one pair of the stopper bead portions in a height direction thereof, thereby plastically deforming the bead seal section and the stopper section simultaneously.

公开(公告)号：US20230317978A1

公开(公告)日：2023-10-05

申请号：US18189368

申请日：2023-03-24

Applicant: NOK CORPORATION

Inventor： Hajime YUI ,  Shigeru WATANABE ,  Takeshi MASAKA

IPC: H01M8/0282 ,  H01M8/0254 ,  H01M8/021

CPC classification number: H01M8/0282 ,  H01M8/0254 ,  H01M8/021

Abstract: A gasket includes a first separator having a first bead, and a second separator superposed with the first separator and having a second bead formed at a position opposite to the first bead, wherein the first separator further has a first protrusion disposed close to the first bead and protruding from a first separator front surface in the same direction as the protruding direction of the first bead, and the second separator further has a second protrusion disposed close to the second bead, protruding from a second separator rear surface in a direction opposite to the protruding direction of the second bead, and fittable to the first protrusion.

公开(公告)号：US20150343676A1

公开(公告)日：2015-12-03

申请号：US14759509

申请日：2014-03-28

Applicant: NOK CORPORATION

Inventor： Toshihiro SHIMAZOE ,  Shigeru WATANABE

IPC: B29C43/02 ,  B29C43/20 ,  B29C43/18

CPC classification number: B29C43/021 ,  B29C33/0055 ,  B29C43/18 ,  B29C43/203 ,  B29C2043/026 ,  B29K2021/00 ,  B29K2105/20 ,  B29K2707/04 ,  B29L2009/005 ,  B29L2031/265 ,  H01M8/0234 ,  H01M8/0273 ,  Y02P70/56

Abstract: The purpose of the present invention is to provide a method for manufacturing a carbon plate-integrated gasket with which, when forming a carbon plate-integrated gasket using a cure-in-place gasket (CIPG), gaskets with a selected lip shape can be obtained with good precision without damage to the carbon plate and with good material yield while maintaining favorable material properties. For this purpose, in the method for manufacturing a carbon plate-integrated gasket having a lip-shaped section in which an uncured liquid rubber is applied on the surface of a carbon plate to produce an uncured seal protrusion and the seal protrusion is then compressed and cured between a forming mold and the carbon plate, a burr-collecting section for discharging excess seal protrusion rubber from the gasket-forming space is configured between the forming mold and the carbon plate so as to communicate with said forming space via a rubber-squeezing section.

Abstract translation: 本发明的目的是提供一种用于制造碳板一体式衬垫的方法，当使用固化垫圈（CIPG）形成碳板一体化垫圈时，可以使用具有选定唇形的垫圈 在不损害碳板的同时，以良好的精度获得良好的材料产率，同时保持良好的材料性能。 为此，在具有唇形部分的碳板一体式衬垫的制造方法中，其中在碳板的表面上涂布未固化的液体橡胶以产生未固化的密封突起，然后将密封突起压缩， 在成形模具和碳板之间固化，在成形模具和碳板之间配置有用于从垫圈形成空间排出多余的密封突出橡胶的毛刺收集部，以通过橡胶挤压与所述成形空间连通 部分。

公开(公告)号：US20170312963A1

公开(公告)日：2017-11-02

申请号：US15522639

申请日：2015-09-17

Applicant: NOK CORPORATION

Inventor： Bunpei YOSHIDA ,  Takeshi MASAKA ,  Shigeru WATANABE ,  Shun MURASAKI

IPC: B29C45/34 ,  B29C45/38 ,  B29C45/14 ,  B29C45/00 ,  B29K21/00 ,  B29L31/26

Abstract: The purpose of the present invention is to make it possible to shorten the time required for a burr removal step and make it difficult for the burrs to detach from a sheet member in a step for removing the burrs together with the sheet member. For removal, by making the burrs to adhere to a pliable sheet member such as paper or nonwoven fabric that has been incorporated beforehand in the molding die and stripping the sheet member from the molding die, the burrs are removed together with the sheet member. The present invention is characterized in that in order to make it difficult for the burrs to detach from the sheet member during the stripping, a radiused shape with an arc-shaped cross-section is formed by the molding die on the areas surrounding the sections where the burrs adhere to the sheet member.

公开(公告)号：US20160288390A1

公开(公告)日：2016-10-06

申请号：US14777632

申请日：2014-03-20

Applicant: NOK CORPORATION

Inventor： Shotaro KOGA ,  Tetsuya URAKAWA ,  Takeshi MASAKA ,  Yoshihiro KURANO ,  Shigeru WATANABE ,  Toshihiro SHIMAZOE

IPC: B29C45/27 ,  B29C45/32 ,  B29C45/64 ,  B29C33/38 ,  B29C45/00

CPC classification number: B29C45/2756 ,  B29C33/34 ,  B29C33/38 ,  B29C45/0001 ,  B29C45/0025 ,  B29C45/0416 ,  B29C45/06 ,  B29C45/14336 ,  B29C45/1759 ,  B29C45/28 ,  B29C45/32 ,  B29C45/64 ,  B29C2045/067 ,  B29K2021/00 ,  B29K2905/00 ,  B29L2031/265 ,  B29L2031/3468 ,  H01M8/0273 ,  H01M8/0284 ,  H01M8/0286

Abstract: In order to achieve lower costs in a molding apparatus using a mold by reducing mold cleaning steps following releasing of the product from the mold and shortening the molding cycle, the apparatus is equipped with a plurality of fixed molds and movable molds which are heated to the temperature necessary to harden a molding material and come together by means of clamping to form a cavity, and a non-heated cold runner which supplies the molding material from an injection device to the interior of the cavity via a gate opened in the movable mold, the fixed molds and movable molds being movable between an injection stage where the injection device and cold runner (32) are present and an opening stage near the injection stage.

Abstract translation: 为了在通过从模具中释放产品并缩短成型周期之后通过减少模具清洁步骤来实现使用模具的成型设备中的成本更低的成本，该设备配备有多个固定模具和可移动模具，其被加热到 通过夹紧来形成空腔所必需的温度，以及通过在可移动模具中打开的门将模制材料从注射装置供应到空腔内部的未加热的冷流道， 固定模具和可移动模具可在注射装置和冷流道（32）之间的注射阶段和注射阶段附近的开启阶段之间移动。

公开(公告)号：US20220302475A1

公开(公告)日：2022-09-22

申请号：US17619026

申请日：2020-09-01

Applicant: NOK CORPORATION

Inventor： Taisuke MATSUDA ,  Shigeru WATANABE

IPC: H01M8/0286 ,  H01M8/0258

Abstract: A method of shaping a gasket on a separator without causing destruction and damage. A fuel battery separator gasket is shaped via a shaping of a sticking agent and a transfer of the sticking agent. During the shaping, the sticking agent to be the gasket is shaped on a flexible substrate having flexibility. During the transfer, the sticking agent shaped on the flexible substrate is transferred to one of a pair of separators facing each other with an electrolyte membrane provided in a fuel battery cell being interposed therebetween and each having a bead forming a flow path of fluid between the bead and the electrolyte membrane in close contact with the electrolyte membrane to shape the gasket.

公开(公告)号：US20220231310A1

公开(公告)日：2022-07-21

申请号：US17607054

申请日：2020-08-24

Applicant: NOK CORPORATION

Inventor： Taisuke MATSUDA ,  Shigeru WATANABE

IPC: H01M8/0276

Abstract: A seal structure is provided that follows fluctuations in a gap between a pair of fuel cell separators without generating a large tightening force. A pair of separators facing each other with an electrolyte membrane as a mating member interposed therebetween have beads which form a flow path for fluid between the beads and the electrolyte membrane in close contact with the electrolyte membrane. A seal which seals the pair of separators causes the beads 14 of the pair of these separators to overlap each other in a nested manner. A seal material having elasticity is provided between side walls of the respective beads which face each other. When the gap between the pair of separators fluctuates, the seal material deforms in a shearing direction.

公开(公告)号：US20160111735A1

公开(公告)日：2016-04-21

申请号：US14892030

申请日：2014-05-13

Applicant: NOK CORPORATION

Inventor： Toshihiro SHIMAZOE ,  Shigeru WATANABE

IPC: H01M8/02

CPC classification number: H01M8/0271 ,  H01M8/0247 ,  H01M8/0276 ,  H01M8/0284 ,  H01M2008/1095

Abstract: In a fuel battery seal structure, a gasket has a base portion fitted in a non-bonded manner to a seal installation groove of a separator, and a seal protrusion brought into close contact with a seal groove of a separator. Presser projections and clearance grooves are formed in both sides in a width direction of the seal groove. The presser projections are brought into contact with the base portion of the gasket, and the clearance grooves are positioned in an opposite side to the seal groove as seen from the presser projections. Sum of widths of the seal groove and the presser projections in both sides thereof is smaller than a width of the seal installation groove, and sum of widths of the seal groove, and the presser projections and the clearance grooves in both sides thereof is larger than the width of the seal installation groove.

Abstract translation: 在燃料电池密封结构中，垫圈具有与隔离件的密封安装槽非接合方式嵌合的基部，以及与隔膜的密封槽紧密接触的密封突起。 在密封槽的宽度方向的两侧形成有压入突起和间隙槽。 压脚突起与垫圈的基部接触，并且间隙槽位于与压紧突起一起看到的与密封槽相反的一侧。 密封槽和其两侧的压紧突起的宽度之和小于密封件安装槽的宽度，密封槽的宽度和两侧的压紧突起和间隙槽的宽度之和大于 密封安装槽的宽度。

公开(公告)号：US20220093940A1

公开(公告)日：2022-03-24

申请号：US17439837

申请日：2020-03-24

Applicant: NOK CORPORATION

Inventor： Taisuke MATSUDA ,  Shigeru WATANABE

IPC: H01M8/0228 ,  H01M8/0276 ,  H01M8/0206 ,  H01M8/0247 ,  H01M8/0258

Abstract: A separator-integrated gasket is provided for making an electrolyte membrane unlikely to be deformed when a stack is assembled. The separator-integrated gasket for a fuel battery includes a lip-shaped gasket, first and second separator components, and a flat-shaped gasket. The first and second separator components are made of press-workable metal plates, and include first and second three-dimensional shape portions, respectively. The first separator component includes a surface that is on a side opposite to a protruding direction of the first three-dimensional shape portion and on which a gasket attachment groove holding the lip-shaped gasket is formed. The second separator component includes a surface that is on a side opposite to a protruding direction of the second three-dimensional shape portion and on which a three-dimensional shape fitting groove accommodating the first three-dimensional shape portion is formed. The flat-shaped gasket is held on an outer surface side at the second three-dimensional shape portion. The first and second three-dimensional shape portions protrude in the same direction while mutually adjusted in positions on a flat surface. The first and second separator components are joined to each other while superposed over each other in a thickness direction.

公开(公告)号：US20210194016A1

公开(公告)日：2021-06-24

申请号：US17128713

申请日：2020-12-21

Applicant: NOK CORPORATION

Inventor： Junichi SHIMADA ,  Hajime YUI ,  Shigeru WATANABE ,  Toshihiro SHIMAZOE

IPC: H01M8/0206 ,  H01M8/0286

Abstract: A method of manufacturing a separator assembly for fuel cell includes a separator assembly forming step in which a separator assembly including a first metal separator and a second metal separator each having a protruding bead portion is formed by joining together the surfaces of the first and second metal separators opposite from their respective bead portions protruding, and a preload applying step in which a pair of platens apply a preload in a thickness direction of the separator assembly to a bead seal section formed of one pair of the bead portions, and thereby the bead seal section is plastically deformed. In the preload applying step, the preload applied to a linear portion of the bead seal section is set to be smaller than the preload applied to a curve portion of the bead seal section.