Ventilation component

{
  "publication_number": "US12115483B2",
  "country": "US",
  "kind": "B2",
  "title": "Ventilation component",
  "abstract": "A ventilation component (1 a) 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 (1 a) is attached to a housing (2), the ventilation path (12) extends in a direction perpendicular to an opening plane of an opening (2 a), and extends through the supporting portion (10). The annular surface (14) faces an outer surface (2 e) 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 (2 e) of the housing (2) and the annular surface (14) to seal a gap between the outer surface (2 e) 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.",
  "claims": [
    "1. A ventilation component configured to be attached to a housing to cover an opening of the housing, the ventilation component comprising: a supporting portion having a ventilation path and an annular surface, the ventilation path extending in a direction perpendicular to an opening plane of the opening when the ventilation component is attached to the housing, the annular surface being configured to face an outer surface of the housing positioned on an outer circumference of the opening, and the annular surface surrounding the ventilation path in plan view; a gas-permeable membrane closing the ventilation path in a ventilatable manner and allowing a gas to pass therethrough in a thickness direction thereof; and a sealing member, when the ventilation component is attached to the housing, being configured to be sandwiched between the outer surface of the housing and the annular surface to seal a gap between the outer surface of the housing and the annular surface, wherein the ventilation path extends through the supporting portion in the direction perpendicular to the opening plane, the sealing member includes a pressure-sensitive adhesive including at least one selected from the group consisting of a filler, air bubbles, and a surfactant, and the sealing member seals the gap without being compressed when the ventilation component is attached to the housing.",
    "2. The ventilation component according to claim 1, wherein the pressure-sensitive adhesive includes the filler.",
    "3. The ventilation component according to claim 2, wherein the pressure-sensitive adhesive further includes the air bubbles.",
    "4. The ventilation component according to claim 2, wherein the filler includes hollow particles.",
    "5. The ventilation component according to claim 1, wherein the supporting portion has an adherend surface, the adherend surface facing the opening when the ventilation component is attached to the housing, and the gas-permeable membrane is attached to the adherend surface.",
    "6. The ventilation component according to claim 1, wherein the supporting portion has an adherend surface, the adherend surface facing in the same direction as a direction in which the outer surface of the housing faces when the ventilation component is attached to the housing, and the gas-permeable membrane is attached to the adherend surface.",
    "7. The ventilation component according to claim 1, wherein the supporting portion has a first positioning portion suppressing at least one of movement of the sealing member toward the ventilation path and movement of the sealing member away from the ventilation path.",
    "8. The ventilation component according to claim 1, wherein the supporting portion has a second positioning portion suppressing movement of the gas-permeable membrane in a direction parallel to a surface of the gas-permeable membrane.",
    "9. The ventilation component according to claim 1, further comprising a protruding portion protruding from the supporting portion in the direction perpendicular to the opening plane, the protruding portion being inserted into the opening to be brought into contact with the housing in the opening when the ventilation component is attached to the housing, wherein the ventilation path extends through the supporting portion and the protruding portion in the direction perpendicular to the opening plane.",
    "10. The ventilation component according to claim 9, wherein the protruding portion has a locked portion to be locked to the housing.",
    "11. The ventilation component according to claim 1, further comprising a roof portion coupled to the supporting portion, the roof portion covering the gas-permeable membrane when the gas-permeable membrane is viewed in plan, and forming, between the roof portion and the gas-permeable membrane, a gap communicating with an external space of the ventilation component."
  ],
  "description_excerpt": "The present invention relates to a ventilation component.\n\nConventionally, ventilation components to be attached to a housing having an opening have been known.\n\nFor example, Patent Literature 1 describes a ventilation unit including a ventilation member and a sealing member. The ventilation member is attached to an opening of a housing. The ventilation member includes a water-proof sound-transmitting membrane for covering the opening. The sealing member seals a gap between the housing and the ventilation member. The sealing member used is an O-ring. The sealing member further includes a washer. The washer surrounds the sealing member. This prevents a foreign matter from entering the housing from between the ventilation member and the housing in an environment where a high external pressure acts on the ventilation unit.\n\nIn the ventilation unit described in Patent Literature 1, the O-ring is used as the sealing member, and furthermore the washer is used. The technique described in Patent Literature 1 has room for improving the reliability of the ventilation component with a simple structure. In view of this, the present invention provides a ventilation component that is advantageous in exhibiting a high reliability with a simple structure.\n\nThe present invention provides a ventilation component to be attached to a housing to cover an opening of the housing, the ventilation component including:\n\nThe above ventilation component is advantageous in exhibiting a high reliability with a simple structure.",
  "cpc": [
    "B01D 46/0005",
    "B01D 2271/02",
    "B01D 2279/35",
    "B01D 46/543",
    "C08J 5/12",
    "C09J 11/04",
    "C09J 11/06",
    "C09J 2301/302",
    "C09J 2301/408",
    "C09J 7/38",
    "F16B 11/006",
    "H05K 5/0213",
    "H05K 5/0216",
    "H05K 5/06",
    "H05K 5/068",
    "H05K 7/12"
  ],
  "ipc": [
    "B01D 46/00",
    "B01D 46/54",
    "C09J 7/38"
  ],
  "assignees": [
    "Nitto Denko Corp"
  ],
  "inventors": [
    "Youzou Yano",
    "Takumi Takahashi",
    "Kenichi Nishikawa"
  ],
  "filing_date": "2020-06-02",
  "publication_date": "2024-10-15",
  "grant_date": "2024-10-15",
  "priority_date": "2019-06-07",
  "application_number": "US-202017596058-A",
  "family_id": "73653261",
  "cited_by_count": 1,
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}