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    VENTILATION COMPONENT
    1.
    发明申请
    VENTILATION COMPONENT 有权

    公开(公告)号：US20220120354A1

    公开(公告)日：2022-04-21

    申请号：US17425220

    申请日：2020-01-24

    Applicant: NITTO DENKO CORPORATION

    Inventor： Yusuke NAKAYAMA ,  Youzou YANO ,  Tomoyuki KASAGI ,  Akira MIYAGAKI

    IPC: F16K15/14 ,  F16K24/04

    Abstract: A ventilation component (1a) includes a valve body portion (10), a shaft portion (20), a ventilation path (15), and a gas-permeable membrane (30). The valve body portion (10) has an umbrella cloth shape. The shaft portion (20) extends in a normal direction of the valve body portion (10). The shaft portion (20) supports the valve body portion (10). The ventilation path (15) extends through the shaft portion (20) in the normal direction of the valve body portion (10). The gas-permeable membrane (30) closes the ventilation path (15) such that ventilation can occur. In a state where the ventilation component (1a) is fixed to a housing (50), the valve body portion (10) covers a peripheral opening (55) and an outer circumferential portion of the valve body portion (10) is in contact with an outer surface (52a) of the housing (50) such that a flow of gas passing through the peripheral opening (55) is blocked. In addition, ventilation occurs between an inner space (51) and an external space (52) via the gas-permeable membrane (30). When a pressure difference obtained by subtracting a pressure of the external space (52) of the housing (50) from a pressure of the inner space (51) of the housing (50) is equal to or higher than a predetermined value, the valve body portion (10) elastically deforms to be away from an outer surface (52a) to release the pressure of the inner space (51).

    INTERNAL PRESSURE ADJUSTMENT MEMBER AND ELECTRICAL COMPONENT FOR TRANSPORT EQUIPMENT
    2.
    发明申请
    INTERNAL PRESSURE ADJUSTMENT MEMBER AND ELECTRICAL COMPONENT FOR TRANSPORT EQUIPMENT 审中-公开

    公开(公告)号：US20200298188A1

    公开(公告)日：2020-09-24

    申请号：US16771607

    申请日：2018-12-11

    Applicant: NITTO DENKO CORPORATION

    Inventor： Kou UEMURA ,  Teppei TEZUKA ,  Satoshi NISHIYAMA ,  Tomoyuki KASAGI

    IPC: B01D71/36 ,  B01D69/10 ,  B01D53/22 ,  B01D69/02 ,  B01D39/16 ,  F21V31/03

    Abstract: Provided is an internal pressure adjustment member to be attached to an outer surface of a housing, the member having high air permeability even when a differential pressure that can be generated between the inside and the outside of a housing to which the internal pressure adjustment member is attached is small, and inhibiting damage to the member and a reduction in the air permeability of the member due to coming soil and mud. The internal pressure adjustment member includes: a filter portion including a net-like or mesh-like support layer and first and second porous polytetrafluoroethylene (PTFE) membranes laminated on the support layer such that the support layer is interposed therebetween, the first porous PTFE membrane being exposed on one surface of the filter portion, the second porous PTFE membrane being exposed on another surface of the filter portion; and an adhesive portion, formed on the one surface of the filter portion, for attaching the filter portion to the outer surface of the housing. The first porous PTFE membrane and the second porous PTFE membrane each have an average pore diameter of 2.0 μm or more, the filter portion has a thickness of 140 μm or less, and the filter portion has a density of 0.60 g/cm3 or less.

    VENTILATION HOUSING
    3.
    发明申请
    VENTILATION HOUSING 有权

    公开(公告)号：US20210345503A1

    公开(公告)日：2021-11-04

    申请号：US17283157

    申请日：2019-10-11

    Applicant: NITTO DENKO CORPORATION

    Inventor： Daisuke KITAGAWA ,  Youzou YANO ,  Tomoyuki KASAGI

    IPC: H05K5/02

    Abstract: A ventilation housing of the present disclosure includes: a housing; and a ventilation assembly. The housing includes a tubular projection extending to project from an outer surface and internally having a first space communicating the inside and the outside of the housing. The ventilation assembly includes: an internal member being a tubular body having an opening at a first end portion and an opening at a second end portion; a gas-permeable membrane covering the opening at the first end portion of the internal member; and an external member being a tubular body having a bottom, the external member being joined to the internal member with the internal member inserted in the interior of the external member from the first end portion side. The ventilation assembly is fixed to the projection with the projection inserted in the opening at the second end portion of the internal member to make an inner peripheral surface of the internal member and an outer peripheral surface of the projection abut each other. The ventilation assembly has a second space serving as a ventilation path connecting the gas-permeable membrane and the outside of the ventilation assembly in the inside of the internal member, the inside of the external member, and/or an interspace between the two members. A ratio between an area S1 of a cross-section of the first space and a smallest total area S2min determined by comparison of values of different total areas determined at different distances from the gas-permeable membrane, the total areas each being determined for a cross-section(s) of the second space, is 1.0 or more. A ratio between the area S1 and a total area S2out of a plane consisting of a cross-section(s) of the second space taken at a position(s) where the second space is the narrowest is more than 1.0. This ventilation housing exhibits excellent performance in terms of moisture permeation between the inside and the outside of the housing.

    VENTILATION COMPONENT
    5.
    发明申请
    VENTILATION COMPONENT 有权

    公开(公告)号：US20230034108A1

    公开(公告)日：2023-02-02

    申请号：US17784039

    申请日：2020-12-09

    Applicant: NITTO DENKO CORPORATION

    Inventor： Youzou YANO ,  Tomoyuki KASAGI ,  Takumi TAKAHASHI

    IPC: H05K5/02

    Abstract: A ventilation component 1 includes a ventilation path 10 for allowing ventilation between an inner space 2u and an outer space 2s of a housing 2. The ventilation path 10 is a path for allowing ventilation between the internal space 2u and the outer space 2s when the ventilation component 1 is attached to an edge 2f. The ventilation component 1 includes a supporting portion 12, a gas-permeable membrane 11, a protruding portion 13, and a sealing member 14. The supporting portion 12 surrounds the ventilation path 10. The gas-permeable membrane 11 is bonded to the supporting portion 12 and closes the ventilation path 10 in a ventilatable manner. The protruding portion 13 is a part having a tubular shape, the part being arranged to protrude from the supporting portion 12 and surround one end of the ventilation path 10, the part being configured to be in contact with the edge 2f when the ventilation component 1 is attached to the edge 2f. The ventilation component 1 satisfies a requirement 0.7≤D/W≤1.3.

    VENTILATION COMPONENT
    7.
    发明申请
    VENTILATION COMPONENT 有权

    公开(公告)号：US20230043612A1

    公开(公告)日：2023-02-09

    申请号：US17792633

    申请日：2021-01-14

    Applicant: NITTO DENKO CORPORATION

    Inventor： Youzou YANO ,  Tomoyuki KASAGI ,  Takumi TAKAHASHI

    IPC: B01D53/22 ,  H05K5/02

    Abstract: A ventilation component 1a includes an internal member 10, a gas-permeable membrane 20, and an external member 30. The internal member 10 has an open tubular structure, and has a protruding portion 11 on an outer circumferential surface of the open tubular structure. The gas-permeable membrane 20 covers one opening of the internal member 10. The external member 10 is formed to have a closed tubular structure and has a hooking portion on an inner circumferential surface of the closed tubular structure, the hooking portion hooking the protruding portion. The internal member 10 is fixed to the external member 30 in a state where the internal member 10 is inserted inside the external member 30 and the external member 30 hooks the protruding portion 11 by the hooking portion 33. The ventilation component 1a is capable of being fixed to a projection 2p tubularly protruding from an outer surface of a housing 2. When the internal member 10 and the external member 30 are viewed in plan along an axis A, the ventilation component 1a satisfies a requirement IH

    VENTILATION ASSEMBLY AND VENTILATION HOUSING
    8.
    发明申请
    VENTILATION ASSEMBLY AND VENTILATION HOUSING 有权

    公开(公告)号：US20210392761A1

    公开(公告)日：2021-12-16

    申请号：US17282682

    申请日：2019-10-11

    Applicant: NITTO DENKO CORPORATION

    Inventor： Daisuke KITAGAWA ,  Yusuke NAKAYAMA ,  Akira MIYAGAKI ,  Teppei TEZUKA ,  Youzou YANO ,  Tomoyuki KASAGI

    IPC: H05K5/02

    Abstract: A ventilation assembly of the present disclosure includes: an internal member being a tubular body having an opening at a first end portion and an opening at a second end portion; a gas-permeable membrane covering the opening at the first end portion of the internal member; and an external member being a tubular body having a bottom, the external member being joined to the internal member with the internal member inserted in the interior of the external member from the first end portion side, wherein the ventilation assembly is to be fixed to the projection of the housing with the projection inserted in the opening at the second end portion of the internal member to make an inner peripheral surface of the internal member and an outer peripheral surface of the projection abut each other, the ventilation assembly has a second space serving as a ventilation path connecting the gas-permeable membrane and the outside of the ventilation assembly in at least one selected from the inside of the internal member, the inside of the external member, and an interspace between the internal member and the external member joined together, and a total length of a height of the internal member and a shortest length in the second space from an outer periphery of the internal member at the first end portion to an end portion of the ventilation path on the outside side is 6.0 mm or more and 20 mm or less. The ventilation assembly of the present disclosure is excellent in moisture permeation performance.

    VENTILATION HOUSING
    9.
    发明申请
    VENTILATION HOUSING 有权

    公开(公告)号：US20210356113A1

    公开(公告)日：2021-11-18

    申请号：US17283894

    申请日：2019-10-11

    Applicant: NITTO DENKO CORPORATION

    Inventor： Daisuke KITAGAWA ,  Satoshi NISHIYAMA ,  Youzou YANO ,  Tomoyuki KASAGI

    IPC: F21V31/03 ,  F21S45/30

    Abstract: A ventilation housing of the present disclosure includes: a housing; and a ventilation assembly. The housing includes a tubular projection extending to project from an outer surface and internally having a first space communicating the inside and the outside of the housing. The ventilation assembly includes: an internal member being a tubular body having an opening at a first end portion and an opening at a second end portion; a gas-permeable membrane covering the opening at the first end portion of the internal member; and an external member being a tubular body having a bottom, the external member being joined to the internal member with the internal member inserted in the interior of the external member from the first end portion side. The ventilation assembly is fixed to the projection with the projection inserted in the opening at the second end portion of the internal member to make an inner peripheral surface of the internal member and an outer peripheral surface of the projection abut each other. The ventilation assembly has a second space serving as a ventilation path connecting the gas-permeable membrane and the outside of the ventilation assembly in the inside of the internal member, the inside of the external member, and/or an interspace between the internal member and the external member joined together. A height H1 of the internal member is 6 to 10 mm. A ratio of the height H1 of the internal member to a height H2 of the projection is 1.00 to 1.70. The ventilation housing of the present disclosure exhibits excellent performance in terms of moisture permeation between the inside and the outside of the housing and is capable of reducing dropping of the ventilation assembly from the projection of the housing.

    VENTILATION COMPONENT
    10.
    发明申请
    VENTILATION COMPONENT 有权

    公开(公告)号：US20220369481A1

    公开(公告)日：2022-11-17

    申请号：US17774341

    申请日：2020-11-05

    Applicant: NITTO DENKO CORPORATION

    Inventor： Youzou YANO ,  Tomoyuki KASAGI

    IPC: H05K5/02 ,  F16J15/10 ,  F16B19/00 ,  B01D53/22 ,  B01D69/10

    Abstract: A ventilation component 1 includes a ventilation path 10 for allowing ventilation between an inner space 2u and an outer space 2s of a housing 2. The ventilation path 10 is a path for allowing ventilation between the internal space 2u and the outer space 2s when the ventilation component 1 is attached to an edge 2f. The ventilation component 1 includes a supporting portion 12, a gas-permeable membrane 11, a protruding portion 13, and a sealing member 14. The supporting portion 12 surrounds the ventilation path 10. The gas-permeable membrane 11 is bonded to the supporting portion 12 and closes the ventilation path 10 in a ventilatable manner. The protruding portion 13 is a part having a tubular shape, the part being arranged to protrude from the supporting portion 12 and surround one end of the ventilation path 10, the part being configured to be in contact with the edge 2f when the ventilation component 1 is attached to the edge 2f. The ventilation component 1 satisfies requirements 2.5≤Gs/Gt≤5.0 and 1.0≤{(Gs−Gt)/2}/Lt≤3.0.

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