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

公开(公告)号：US20220314150A1

公开(公告)日：2022-10-06

申请号：US17596058

申请日：2020-06-02

Applicant: NITTO DENKO CORPORATION

Inventor： Youzou YANO ,  Takumi TAKAHASHI ,  Kenichi NISHIKAWA

IPC: B01D46/00 ,  B01D46/54 ,  C09J7/38

Abstract: A ventilation component (1a) includes a supporting portion (10), a gas-permeable membrane (20), and a sealing member (30). The supporting portion (10) has a ventilation path (12) and an annular surface (14). When the ventilation component (1a) is attached to a housing (2), the ventilation path (12) extends in a direction perpendicular to an opening plane of an opening (2a), and extends through the supporting portion (10). The annular surface (14) faces an outer surface (2e) of the housing (2), and surrounds the ventilation path (12) in plan view. The gas-permeable membrane (20) closes the ventilation path (12) in a ventilatable manner. The gas-permeable membrane (20) allows a gas to pass therethrough in a thickness direction of the gas-permeable membrane (20). The sealing member (30) is sandwiched between the outer surface (2e) of the housing (2) and the annular surface (14) to seal a gap between the outer surface (2e) of the housing (2) and the annular surface (14). The sealing member (30) includes at least one selected from the group consisting of a pressure-sensitive adhesive, an adhesive, and a cured product of an adhesive.

公开(公告)号：US20220287191A1

公开(公告)日：2022-09-08

申请号：US17633357

申请日：2020-08-07

Applicant: NITTO DENKO CORPORATION

Inventor： Youzou YANO ,  Takumi TAKAHASHI

IPC: H05K5/02 ,  H05K5/06

Abstract: A ventilation structure (1a) includes a housing (10a) and a ventilation component (20a). The housing (10a) has a first surface (12) defining a lateral surface of a columnar space (11c) in an attachment hole (11). The ventilation component (20a) is attached to the housing (10a) to close the attachment hole (11). The ventilation component (20a) has a ventilation path (21) between an inner space (15u) of the housing (10a) and an outer space (15s) of the housing (10a). The ventilation component (20a) includes a supporting portion (23), a gas-permeable membrane (22), a protruding portion (24), and a sealing member (25). The supporting portion (23) surrounds the ventilation path (21) in plan view. The protruding portion (24) protrudes from the supporting portion (23) toward the inner space (15u) of the housing (10a), and is inserted into the attachment hole (11). The sealing member (25) is disposed on an outer periphery of the protruding portion (24), and seals a gap between the first surface (12) and the protruding portion (24).

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.