Enhanced vehicle seat ventilation and construction techniques
A vehicle seat with enhanced ventilation, and construction techniques for the enhanced ventilation, are described herein. An example vehicle seat includes an exterior formed of an air permeable mesh and a molded foam below the exterior. The molded foam has first holes which allow air to pass therethrough. The vehicle seat further includes a rigid duct connected to the molded foam, with the rigid duct having second holes which line up with the first holes. The vehicle seat further includes a fan, with the fan drawing air from an ambient source through the exterior and into the rigid duct.
1 . A vehicle seat comprising:
an exterior formed of an air permeable mesh;
a molded foam below the exterior, wherein the molded foam has a plurality of first holes configured to allow air to pass therethrough;
a rigid duct connected to the molded foam, the rigid duct having a plurality of second holes which, at least in part, line up with the plurality of first holes;
a fan configured to draw air from an ambient source through the exterior and into the rigid duct; and
a ventilation bar with a first portion and a second portion, the first portion being configured to draw air from a lower portion of the vehicle seat, and the second portion being configured to provide air to the plurality of first holes.
2 . The vehicle seat of claim 1 , wherein the rigid duct is below the molded foam.
3 . The vehicle seat of claim 1 , wherein the second portion is porous.
4 . The vehicle seat of claim 1 , wherein the rigid duct is formed of a top portion and a bottom portion, wherein the top portion and bottom portion are rigid plastic.
5 . The vehicle seat of claim 1 , wherein the rigid duct is formed of a top portion and a bottom portion, wherein the top portion is hardened fleece on a bottom of the molded foam and the bottom portion is rigid plastic affixed to the hardened fleece.
6 . The vehicle seat of claim 1 , wherein the molded foam was created using a foam tool, and wherein the plurality of first holes were formed using pillars of the foam tool, wherein the pillars were inserted into upper portions of the plurality of second holes, wherein the plurality of second holes include respective seals configured to close the plurality of second holes against the pillars, and wherein foam was inserted into a molding cavity using the foam tool to create the molded foam.
7 . The vehicle seat of claim 6 , wherein the inserted foam is blocked from entry into the rigid duct via the seals.
8 . The vehicle seat of claim 6 , wherein the seals are soft seals comprising rubber.
9 . The vehicle seat of claim 6 , wherein the seals were formed using a two-shot molding process.
10 . A vehicle seat comprising:
a seat bottom comprising:
an exterior formed of an air permeable mesh,
a molded foam below the exterior, wherein the molded foam has a plurality of first holes configured to allow air to pass therethrough,
a first rigid duct connected to the molded foam, the first rigid duct having a plurality of second holes which, at least in part, line up with the plurality of first holes,
and
a first fan, the first fan configured to draw air from an ambient source through the exterior and into the first rigid duct; and
a seat back comprising:
a second rigid duct having a plurality of third holes,
a fleece molded onto the seat back, and
a second fan configured to draw air through the plurality of third holes.
11 . The vehicle seat of claim 10 , wherein the fleece is a hardened fleece molded into foam of the seat back.
12 . The vehicle seat of claim 10 , wherein the seat back further composes a ventilation bar, wherein the ventilation bar is configured to have air drawn into a first portion positioned at a bight line and have air output from a second portion along the seat back.
13 . The vehicle seat of claim 12 , wherein the second portion is porous.
14 . A method of ventilating a vehicle seat comprising:
inserting a molded foam below an exterior of the vehicle seat, wherein the exterior is formed of an air permeable mesh, and the molded foam has a plurality of first holes configured to allow air to pass therethrough;
connecting a rigid duct to the molded foam, wherein the rigid duct has a plurality of second holes which lines up with the plurality of first holes;
drawing air, via a fan, from an ambient source through the exterior and into the rigid duct; and
drawing air from a lower portion of the vehicle seat and providing the air from the lower portion of the vehicle seat to the plurality of first holes.
15 . The method of claim 14 , wherein the rigid duct is placed below the molded foam.
16 . The method of claim 15 , further comprising creating the molded foam using a foam tool, comprising forming the plurality of first holes using pillars of the foam tool, inserting the pillars into upper portions of the plurality of second holes, and inserting foam into a molding cavity using the foam tool.
17 . The method of claim 16 , wherein creating the molded foam further comprises blocking the inserted foam from entry into the rigid duct via respective seals configured to close the plurality of second holes against the pillars.