US 12,144,130 B2
Ventilation component
Youzou Yano, Osaka (JP); and Tomoyuki Kasagi, Osaka (JP)
Assigned to NITTO DENKO CORPORATION, Osaka (JP)
Appl. No. 17/774,341
Filed by NITTO DENKO CORPORATION, Ibaraki (JP)
PCT Filed Nov. 5, 2020, PCT No. PCT/JP2020/041376
§ 371(c)(1), (2) Date May 4, 2022,
PCT Pub. No. WO2021/090887, PCT Pub. Date May 14, 2021.
Claims priority of application No. 2019-202092 (JP), filed on Nov. 7, 2019.
Prior Publication US 2022/0369481 A1, Nov. 17, 2022
Int. Cl. H05K 5/02 (2006.01); B01D 53/22 (2006.01); B01D 69/10 (2006.01); B60R 16/02 (2006.01); F16B 19/00 (2006.01); F16J 15/10 (2006.01)
CPC H05K 5/0213 (2013.01) [B01D 53/22 (2013.01); B01D 69/10 (2013.01); F16B 19/008 (2013.01); F16J 15/104 (2013.01); B60R 16/02 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A ventilation component configured to be attached to an edge of an opening of a housing, the opening communicating an inner space and an outer space of the housing, the ventilation component comprising:
a ventilation path for allowing ventilation between the inner space and the outer space when the ventilation component is attached to the edge;
a supporting portion surrounding the ventilation path;
a gas-permeable membrane bonded to the supporting portion and closing the ventilation path in a ventilatable manner;
a protruding portion having a tubular shape, the protruding portion being arranged to protrude from the supporting portion and surround one end of the ventilation path, the protruding portion being configured to be in contact with the edge when the ventilation component is attached to the edge; and
a sealing member disposed around the protruding portion, the sealing member configured to seal a gap between an outer surface of the housing and the ventilation component when the ventilation component is attached to the edge, wherein
the ventilation component satisfies requirements 2.5≤ Gs/Gt≤5.0 and 1.0≤ {(Gs-Gt)/2}/Lt≤3.0, where Gt is a maximum outer diameter of the protruding portion in a boundary between the protruding portion and the supporting portion, Gs is a maximum outer diameter of an outer surface of the supporting portion in contact with the protruding portion and is defined when the outer surface of the supporting portion is viewed in plan, and Lt is a maximum length of the protruding portion in a direction parallel to a central axis of the protruding portion.