Cooling and heating seat pad construction
DCFirst Claim
1. A seat pad construction for receiving temperature conditioned pressurized air and have its temperature modified accordingly, comprising:
- first and second air-tight plate means hingedly interconnected along an edge in a generally L-shaped configuration defining the seat and backrest, respectively;
first spring means overlying the facing major surfaces of the first and second plate means;
second spring means extending along the interconnection of the first and second plate means;
a first air permeable material consisting of plastic mesh overlying the first spring means applied over the first plate means and secured to the first plate means edges;
a second air permeable material consisting of a copper wire mesh overlying the first spring means applied over the second plate means and secured to the second plate means edges;
a first air flow barrier located over the second spring means and edge interconnected with both the first and second air permeable materials;
a second air flow barrier located on the first spring means in the central leading top edge portion of the first plate means secured to both an edge of the first plate means and the first air permeable material; and
means mounted onto the second air flow barrier for interconnecting a source of pressurized modified air to the seat pad plenum defined by the first and second plate means covered by the first and second air permeable materials and the first and second air flow barriers.
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Abstract
A seat pad and backrest enclose a plenum into which pressurized air is provided from a closely adjacent Peltier air temperature and humidity modifying apparatus (either cooled or warmed). A metallic mesh is part of the seat pad and backrest and warms or cools the user by conduction. Alternatively, the seat pad and backrest can be separate each having its own plenum, and modified air is provided to both via a selectively adjustable proportioning valve. Yet another alternative unitarily incorporates a seat pad and backrest into a chair with a single plenum fed temperature modified air from a Peltier unit mounted on the chair.
258 Citations
12 Claims
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1. A seat pad construction for receiving temperature conditioned pressurized air and have its temperature modified accordingly, comprising:
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first and second air-tight plate means hingedly interconnected along an edge in a generally L-shaped configuration defining the seat and backrest, respectively; first spring means overlying the facing major surfaces of the first and second plate means; second spring means extending along the interconnection of the first and second plate means; a first air permeable material consisting of plastic mesh overlying the first spring means applied over the first plate means and secured to the first plate means edges; a second air permeable material consisting of a copper wire mesh overlying the first spring means applied over the second plate means and secured to the second plate means edges; a first air flow barrier located over the second spring means and edge interconnected with both the first and second air permeable materials; a second air flow barrier located on the first spring means in the central leading top edge portion of the first plate means secured to both an edge of the first plate means and the first air permeable material; and means mounted onto the second air flow barrier for interconnecting a source of pressurized modified air to the seat pad plenum defined by the first and second plate means covered by the first and second air permeable materials and the first and second air flow barriers. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Apparatus for selectively cooling or heating an automotive vehicle seat, comprising:
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a seat pad having a seat and backrest portions with an enclosed plenum extending throughout the seat and backrest portions, the major surfaces of the seat pad facing outwardly in a direction toward a user including an air permeable covering having first heat condition properties in the seat portion and second heat conduction properties in the backrest portion greater than the first heat conduction properties, and the major surfaces facing away from a user being air-tight; the air permeable covering being secured to the edges of said seat and backrest portions to define said plenum; a selectively energizable Peltier unit for providing pressurized temperature modified air; and conduit means interconnecting the Peltier unit and the seat pad plenum. - View Dependent Claims (8, 9, 10, 11)
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12. A seat pad construction for receiving temperature conditioned pressurized air and have its temperature modified accordingly, comprising:
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first and second air-tight plate means hingedly interconnected along an edge in a generally L-shaped configuration defining the seat and backrest, respectively; first spring means overlying the facing major surfaces of the first and second plate means; second spring means extending along the interconnection of the first and second plate means; a first air permeable material consisting of plastic mesh overlying the first spring means applied over the first plate means and secured to the first plate means edges; a second air permeable material consisting of an aluminum wire mesh overlying the first spring means applied over the second plate means and secured to the second plate means edges; a first air flow barrier located over the second spring means and edge interconnected with both the first and second air permeable materials; a second air flow barrier located on the first spring means in the central leading top edge portion of the first plate means and the first air permeable material; and means mounted onto the second air flow barrier for interconnecting a source of pressurized modified air to the seat pad plenum defined by the first and second plate means covered by the first and second air permeable materials and the first and second air flow barriers.
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Specification