Automotive vehicle seating comfort system

• US 7,131,689 B2
• Filed: 07/21/2005
• Issued: 11/07/2006
• Est. Priority Date: 08/29/2002
• Status: Expired due to Term

• Current Assignee: Gentherm GmbH (Gentherm Incorporated)
• Original Assignee: Wet Automotive Systems AG (Gentherm Incorporated)
• Inventors: Bajic, Goran, Fernandez, Lucas, Drobnjakovic, Valerija, Brennan, Lindy
• Primary Examiner(s): Cuomo, Peter M.
• Assistant Examiner(s): MCPARTLIN, SARAH BURNHAM
• Application Number:
  US11/186,076
• Publication Number:
  US 20050248187A1
• Time in Patent Office: 474 Days
• Field of Search: 297/180.14, 297/180.13, 297/180.12, 297/180.11, 297/452.42
• US Class Current: 297/180.14
• CPC Class Codes: A47C 7/74 for ventilation, heating or cooling actuated by rocking the chair A47C3/02
• CPC Class Codes: B60N 2/5635 coming from the passenger compartment
• CPC Class Codes: B60N 2/5657 blown towards the seat surface
• CPC Class Codes: B60N 2/5685 Resistance

Abstract

There is disclosed an automotive vehicle seating comfort system for providing heating, cooling, ventilation or a combination thereof to an individual in an automotive car seat. The system typically includes an insert, a blower and a tubular structure for providing fluid communication between the insert and blower for providing ventilation and/or cooling for the individual. Preferably, the insert includes a heater or heater layer for providing heat for the individual.

Claims

1. A ventilation seat for a vehicle, comprising:

an air permeable outer trim layer;

a shaped foam body having an upper and a lower surface, the foam body being located below the trim layer, and being adapted for use as at least one of a seat cushion or a seat backrest, the foam body being defined to include at least one airflow passageway and at least one cavity adjoining the at least one airflow passageway;

a layered insert nestingly disposed in the at least one cavity, the insert being open at its sides and including;

i) a flexible heater layer comprising a substantially flat heating element supported with a backing;

ii) a spacer layer defining an open airflow space beneath the heater layer; and

iii) a bottom surface that is generally planar and disposed over the at least one airflow passageway through which fluid is communicated; and

a fluid mover located within the shaped foam body and disposed generally opposite the bottom surface of the insert, the fluid mover in fluid communication with the insert for moving air within the seat and across the insert.

2. A ventilation seat of claim 1, wherein the at least one airflow passageway includes a wall-portion that tapers outwardly as it progresses toward the bottom surface of the insert.

3. The ventilated seat of claim 1, wherein the at least one cavity is defined within a central region of the cushion by a plurality of walls that are generally orthogonally disposed relative to the upper surface of the cushion.

4. The ventilated seat of claim 2, wherein the at least one cavity is defined within a central region of the cushion by a plurality of wails that are generally orthogonally disposed relative to the upper surface of the cushion.

5. The ventilated seat of claim 1, wherein the spacer layer comprises a polymeric strand material.

6. The ventilated seat of claim 1, wherein the spacer layer comprises a foam plastic material.

7. The ventilated seat of claim 1, wherein the heater layer is adhered to the spacer layer.

8. The ventilated seat of claim 2, wherein the heater layer is adhered to the spacer layer.

9. The ventilated seat of claim 3, wherein the heater layer is adhered to the spacer layer.

10. The ventilated seat of claim 4, further comprising at least one of a temperature sensor and a controller for operating the heating element.

11. The ventilated seat of claim 1, wherein the heater layer and the fluid mover are operable for achieving air flow and heating simultaneously.

12. The ventilated seat of claim 10, wherein the heater layer and the fluid mover are operable for achieving air flow and heating simultaneously.

13. The ventilated seat of claim 1, further comprising means for directing air flow.

14. The ventilated seat of claim 13, wherein the air flow directing means is adjacent the heater layer.

15. The ventilated seat of claim 13, wherein the air flow directing means comprises a tape.

16. A ventilation seat for a vehicle, comprising:

an air permeable outer trim layer;

a shaped foam body having an upper and a lower surface, the foam body being located below the trim layer, and being adapted for use as at least one of a seat cushion or a seat backrest, the foam body being defined to include at least one airflow passageway and at least one cavity adjoining the at least one airflow passageway, the at least one cavity being defined within a central region of the cushion by a plurality of walls that are generally orthogonally disposed relative to the upper surface of the cushion, and a generally flat base wall through which the at least one airflow passageway penetrates;

a layered insert nestingly disposed in the at least one cavity on top of the base wall, the insert being open at its sides and including a spacer layer defining an open airflow space and a deflector located between the spacer layer and the trim layer;

means for providing heat to an occupant of the seat; and

a fluid mover positioned within the foam body in fluid communication with the spacer layer for moving air within the seat and across the spacer layer.

17. A ventilation seat of claim 16, wherein the at least one airflow passageway includes a wall-portion that tapers outwardly as it progresses toward the base wall.

18. The ventilated seat of claim 16, wherein the spacer layer comprises a polymeric strand material.

19. The ventilated seat of claim 16, wherein the spacer layer comprises a foam plastic material.

20. The ventilated seat of claim 16, wherein the means for heating includes a heating element attached to the spacer layer.

21. The ventilated seat of claim 16, further comprising means for directing air flow.

22. The ventilated seat of claim 21, wherein the air flow directing means is adjacent the means for heating.

23. The ventilated seat of claim 21, wherein the air flow directing means comprises a tape.