Vehicle noise reducing assembly

Patent metadata

Field	Value
Publication number	US-2016280155-A1
Application number	US-201514671777-A
Country	US
Kind code	A1
Filing date	Mar 27, 2015
Priority date	Mar 27, 2015
Publication date	Sep 29, 2016
Grant date	—

Abstract

A vehicle noise reducing assembly includes a trunk structure having a floor panel, an interior wall panel and an exterior wall panel. A trunk storage area is defined by the interior wall panel and the floor panel. A trim panel is connected to the interior wall panel within the trunk storage area. A cavity is defined by the floor panel, the exterior wall panel and the trim panel and has a first cavity and a second cavity. A relief valve is disposed in a vent opening in the exterior wall panel. The relief valve extends into the first cavity and has a drafter opening facing inboard. A barrier member is disposed in the second cavity with a barrier surface positioned between the relief valve and the second cavity to prevent sound passing through the drafter opening from entering the second cavity.

First claim

What is claimed is:

1 . A vehicle noise reducing assembly, comprising:
a trunk structure comprising a floor panel, an interior wall panel and an exterior wall panel; a trunk storage area defined by the interior wall panel and the floor panel; a trim panel connected to the interior wall panel within the trunk storage area; an outboard cavity defined by the floor panel, the exterior wall panel and the trim panel and having a first cavity and a second cavity in communication with the first cavity; a relief valve disposed in a vent opening in the exterior wall panel, the relief valve extending into the first cavity and having a drafter opening facing inboard; and a barrier member disposed in the second cavity with a barrier surface positioned between the relief valve and the second cavity to prevent sound passing through the drafter opening from entering the second cavity.

2 . The vehicle noise reducing assembly according to claim 1 , wherein
a gap is defined between the floor panel and the trim panel, and the barrier member extends across the gap to conceal the second cavity from the trunk storage area.

3 . The vehicle noise reducing assembly according to claim 2 , further comprising:
a floor covering disposed over the floor panel and covering the gap, wherein the barrier member conceals the second cavity from the trunk storage area when the floor covering is moved away from the floor panel.

4 . The vehicle noise reducing assembly according to claim 1 , wherein
the first cavity is disposed above the second cavity and above the floor panel.

5 . The vehicle noise reducing assembly according to claim 1 , wherein
the barrier surface of the barrier member is disposed lower than the drafter opening.

6 . The vehicle noise reducing assembly according to claim 1 , further comprising:
a duct connected to the relief valve and extending toward the trunk storage area, the duct having an upper wall with the drafter opening positioned between the upper wall and the barrier surface.

7 . The vehicle noise reducing assembly according to claim 6 , wherein
a first length of the barrier member is greater than a second length of the duct.

8 . The vehicle noise reducing assembly according to claim 1 , wherein
the barrier member extends across the second cavity from the floor panel to the exterior wall panel.

9 . The vehicle noise reducing assembly according to claim 1 , wherein
the floor panel has a substantially horizontal floor surface portion defining the trunk storage area, and a substantially vertical flange portion defining the second cavity.

10 . The vehicle noise reducing assembly according to claim 1 , wherein
the barrier surface forms a substantially continuous surface with an upper surface of the floor panel.

11 . The vehicle noise reducing assembly according to claim 1 , wherein
the drafter opening is oriented to face the barrier surface.

12 . The vehicle noise reducing assembly according to claim 1 , wherein
the barrier member is an insulating member configured to absorb sound.

13 . The vehicle noise reducing assembly according to claim 1 , wherein
the barrier member substantially fills the second cavity.

14 . A vehicle noise reducing assembly, comprising:
a trunk structure comprising an interior wall panel, an exterior wall panel and a floor panel, the floor panel having a substantially horizontal floor surface portion and a substantially vertical flange portion; a trunk storage area defined by the interior wall panel and the floor surface portion of the floor panel; a cavity defined by the exterior wall panel and the flange portion of the floor panel and disposed outboard of the trunk storage area; a relief valve disposed in a vent opening in the exterior wall panel above the cavity and having a drafter opening; and a barrier member disposed in the cavity with a barrier surface positioned between the relief valve and the cavity to prevent sound passing through the drafter opening from entering the cavity.

15 . The vehicle noise reducing assembly according to claim 14 , further comprising:
a trim panel connected to the interior wall panel positioned to conceal the relief valve from the trunk storage area, wherein a gap is defined between the floor panel and the trim panel, and the barrier member extends across the gap to conceal the cavity from the trunk storage area.

16 . The vehicle noise reducing assembly according to claim 15 , further comprising:
a floor covering disposed over the floor panel and covering the gap, wherein the barrier member conceals the cavity from the trunk storage area when the floor covering is moved away from the floor panel.

17 . The vehicle noise reducing assembly according to claim 14 , wherein
the barrier member extends across the cavity from the floor panel to the exterior wall panel.

18 . The vehicle noise reducing assembly according to claim 14 , wherein
the barrier surface forms a substantially continuous surface with an upper surface of the floor panel.

19 . The vehicle noise reducing assembly according to claim 14 , wherein
the drafter opening is oriented to face the barrier surface.

20 . The vehicle noise reducing assembly according to claim 14 , wherein
the barrier member is an insulating member configured to absorb sound and dimensioned to substantially fill the cavity.

Assignees

• Nissan North America Inc

Inventors

• Greggs Alan

Classifications

• B62D25/087

  Luggage compartments · CPC title

• B60R13/08 Primary

  Insulating elements, e.g. for sound insulation {(sound insulating linings for trains B61D17/185; drivers' cabs for load-carrying vehicles insulated against vibrations or noise B62D33/0604; thermal or acoustic insulation of engines F02B77/11; damping of sounds using compensation by electro-acoustic methods G10K11/178)} · CPC title

• B60R5/04

  arranged at rear of vehicle {(B60R5/003, B60R5/006 take precedence; external trunks arranged at rear of vehicle B60R9/065)} · CPC title

• B60R13/011

  for internal load compartments, e.g. car trunks · CPC title