Air permeable cap for vehicle

Patent metadata

Field	Value
Publication number	US-11280470-B2
Application number	US-202117214726-A
Country	US
Kind code	B2
Filing date	Mar 26, 2021
Priority date	Mar 31, 2020
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

An air permeable cap for a vehicle may include: a cover part formed in a cylindrical shape with a closed end part, and having a plurality of guide ribs radially formed on an inner circumferential surface thereof; a foam part inserted and installed in the cover part so as to be contacted with the guide ribs, and having a ventilation hole formed on one side thereof; a membrane part installed between the foam part and the cover part, and configured to block a flow of water through the ventilation hole and allow a flow of air through the ventilation hole; and an adhesion retention part coupled in a concave-convex shape to retain an adhesion force between the foam part and the cover part.

First claim

What is claimed is:

1. An air permeable cap for a vehicle, comprising:
a cover part having a cylindrical shape and comprising a closed end part, an inner circumferential surface and a plurality of guide ribs extending radially from the inner circumferential surface;
a foam part in contact with the plurality of guide ribs and having a ventilation hole;
a membrane part located between the foam part and the cover part, and configured to block a flow of water but allow a flow of air through the ventilation hole; and
an adhesion retention part configured to retain an adhesion force between the foam part and the cover part and comprising:
a ring-shaped adhesion protrusion arranged along an outer circumference of the foam part; and
a plurality of adhesion grooves arranged in respective guide ribs and configured to engage the ring-shaped adhesion protrusion.

2. The air permeable cap of claim 1 , wherein each of the guide ribs includes a spacing protrusion extending toward a center of the cover part and maintaining a gap between the membrane part and the closed end part of the cover part.

3. The air permeable cap of claim 2 , wherein the plurality of guide ribs each has an L-shaped cross-section.

4. The air permeable cap of claim 3 , wherein:
the plurality of guide ribs comprises a pair of the guide ribs symmetrically disposed to face each other and constituting a guide rib group; and
the cover part is configured to establish a first space between the pair of the guide ribs for ventilation.

5. The air permeable cap of claim 1 , wherein the foam part comprises an elastically deformable material.

6. The air permeable cap of claim 5 , wherein an end of each of the guide ribs is configured to have an inclined coupling guide.

7. The air permeable cap of claim 5 , wherein the foam part comprises:
a ventilation part abutting the membrane part; and
a cylindrical coupling part connected to the ventilation part.

8. The air permeable cap of claim 7 , wherein an end of the inner circumferential surface of the cylindrical coupling part is configured to have an inclined coupling induction part.

9. An air permeable cap, comprising:
a cover part having a cylindrical shape and comprising a closed end part, an inner circumferential surface and a plurality of guide ribs extending radially from the inner circumferential surface;
a foam part in contact with the plurality of guide ribs and having a ventilation hole;
a membrane part located between the foam part and the cover part, and configured to block a flow of water but allow a flow of air through the ventilation hole; and
an adhesion retention part configured to retain an adhesion force between the foam part and the cover part,
wherein each of the guide ribs includes a spacing protrusion extending toward a center of the cover part and maintaining a gap between the membrane part and the closed end part of the cover part,
wherein the plurality of guide ribs each has an L-shaped cross-section,
wherein the plurality of guide ribs comprises a pair of the guide ribs symmetrically disposed to face each other and constituting a guide rib group, and the cover part is configured to establish a first space between the pair of the guide ribs for ventilation, and
wherein the cover part comprises:
a plurality of guide rib groups, each guide rib group comprising a different pair of the guide ribs symmetrically disposed to face each other; and
a second space established between neighboring guide rib groups for ventilation.

10. The air permeable cap of claim 9 , wherein a width of the second space is greater than that of the first space.

11. The air permeable cap of claim 10 , wherein the plurality of guide rib groups is radially arranged on the inner circumferential surface of the cover part and spaced apart from each other.

Assignees

• Hyundai Mobis Co Ltd
• Amogreentech Co Ltd

Inventors

• Lee Jin Won
• Lee Young Ho
• Cho Jun Keun
• Park Kyoung Taek
• Kim Hyoung Joo
• Shim Sang Yeop
• Cho Sung Pil

Classifications

• F21S45/30 Primary

  Ventilation or drainage of lighting devices · CPC title

• F21S45/50 Primary

  Waterproofing · CPC title

• F21S45/33 Primary

  specially adapted for headlamps · CPC title

• F21V21/03

  Ceiling bases, e.g. ceiling roses (F21V21/04 takes precedence) · CPC title

• F21S45/37

  specially adapted for signal lamps · CPC title