Granted Patent B2

US 8,065,763 · App. 11/872,657 · Granted Nov 29, 2011

Abstract

Claims (40)

1. A climate controlled bed comprising:

a cushion member comprising an outer surface comprising a first side for supporting an occupant and a second side, the first side and the second side generally facing in opposite directions, the cushion member having at least one fluid zone along or near its first side;

wherein the at least one fluid zone comprises an air permeability that is greater than an air permeability of adjacent portions of the cushion member;

a support structure comprising a top side configured to support the cushion member, a bottom side and an interior space generally located between the top side and the bottom side, the top side and the bottom side of the support structure generally facing in opposite directions;

at least one flow conditioning member at least partially positioned within the least one fluid zone of the cushion member;

an air-permeable topper member positioned along the first side of the cushion member; and

at least one fluid module comprising:

a fluid transfer device; and

a thermoelectric device;

the fluid transfer device selectively transferring fluids past or near the thermoelectric device, said thermoelectric device being configured to selectively heat or cool fluids transferred by the fluid transfer device; and

at least one fluid opening positioned through the cushion member and placing the at least one fluid zone of the cushion member in fluid communication with the at least one fluid module;

wherein fluid exiting the at least one fluid module enters the at least one fluid opening and is delivered through the at least one fluid zone and the air permeable topper member toward an occupant of the climate controlled bed.

2. The bed as in claim 1 , wherein the cushion member is a standard spring mattress.

3. The bed as in claim 1 , wherein the at least one fluid module is positioned within the interior space of the support structure.

4. The bed as in claim 3 , wherein the support structure comprises at least one aperture along its top side, said at least one aperture being configured to generally align with the at least one fluid opening of the cushion member when the cushion member is properly positioned on the support structure, said at least one aperture being in fluid communication with a discharge end of the at least one fluid module.

5. The bed as in claim 3 , wherein the support structure comprises at least one fluid inlet and at least one fluid outlet, said at least one fluid inlet being configured to receive ambient air into the interior space of the support structure, and said at least one fluid outlet being configured to direct a waste stream passing through or near the thermoelectric device away from the bed.

6. The bed as in claim 1 , wherein the at least one flow conditioning member comprises a spacer fabric or another air permeable material.

7. The bed as in claim 1 , wherein the at least one flow conditioning member comprises air permeable foam.

8. The bed as in claim 1 , wherein the at least one flow conditioning member comprises an air-permeable insert at least partially positioned within a bag or other enclosure, said bag or other enclosure comprising a plurality of openings through which fluid can exit.

9. The bed as in claim 1 , further comprising a flow diverter located adjacent to the at least one flow conditioning member, wherein the flow diverter is configured to improve the distribution of fluids within an interior of the at least one flow conditioning member.

10. The bed as in claim 1 , wherein the at least one flow conditioning member comprises stitching, the stitching configured to prevent fluid flow into selected portions of the at least one fluid zone.

11. The bed as in claim 1 , wherein the thermoelectric device comprises a main heat exchanger and a waste heat exchanger, the main and waste heat exchangers being in fluid communication with the fluid transfer device, the support structure comprising an least one waste outlet, the waste heat exchanger of the thermoelectric device being in fluid communication with the at least one waste outlet.

12. The bed as in claim 1 , wherein the at least one flow conditioning member comprises at least one layer of a porous material.

13. The bed as in claim 1 , further comprising a heating member configured to selectively heat at least a portion of the bed.

14. The bed as in claim 13 , wherein the heating member comprises a heat mat, a PTC heater or a resistive wire heater.

15. The bed as in claim 1 , wherein the at least one fluid zone comprises at least one recessed area, the at least one flow conditioning member positioned at least partially within said at least one recessed area.

16. The bed as in claim 1 , wherein the at least one fluid module is configured to deliver ambient air into the at least one fluid zone by not electrically energizing the thermoelectric device.

17. The bed as in claim 1 , wherein fluids transferred by the at least one fluid module into the at least one fluid zone are heated or cooled by the thermoelectric device.

18. The bed as in claim 1 , wherein the cushion comprises a memory foam or a full foam structure.

19. The bed as in claim 1 , wherein the at least one fluid zone is at least partially surrounded by at least one generally air impermeable boundary to generally direct fluids entering the at least one fluid zone upwardly toward the air-permeable topper member.

20. A climate controlled bed assembly comprising:

a cushion member configured to support an occupant, said cushion member being divided into at least two separate fluid zones, the cushion member comprising a top surface, a bottom surface and a main cushion portion extending between said top surface and said bottom surface, the at least two fluid zones defining separate areas along or near the top surface of the cushion member;

at one internal passage located through the main cushion portion and being in fluid communication with at least one of the fluid zones;

at least one flow conditioning member positioned within each of the at least two fluid zones of the cushion member;

at least one fluid transfer device; and

at least one thermoelectric device, the at least one thermoelectric device being configured to receive air from the at least one fluid transfer device and selectively heat or cool said air when the at least one thermoelectric device is electrically activated;

wherein air exiting the at least one fluid transfer device is delivered through the at least one internal passage of the cushion member and into at least one of the fluid zones;

wherein air entering each of the at least two fluid zones is generally distributed with said fluid zone by the at least one flow conditioning member positioned therein before exiting along the top surface of the cushion member in a direction of an occupant;

wherein a level of conditioning within each of the at least two fluid zones is configured to be individually controlled so as to enable a user to selectively create a different thermal conditioning effect within each fluid zone.

21. The bed as in claim 20 , wherein the cushion member comprises a memory foam or a full foam structure.

Assignments (9)