Passive heat management system
A device for refreshing fabrics by reducing malodors and/or wrinkles without requiring that the fabrics to be put through an entire standard laundry process. The device comprises an extractable drawer which is pulled out of the device to allow for loading of a fabric into a receiving region. The extractable drawer can then be closed transporting the fabric into the interior of the device. A fabric treatment composition is sprayed or otherwise dispensed onto the fabrics when the device is operated. The device comprises an air flow path and a heating element which allows for the fabrics to be treated during use and comprises a passive heat management system within the shell to minimize formation of hot spots and direct air flow away from the side walls. The extractable drawer of the present invention can be positioned to extract laterally or vertically out of the shell of the device.
1. A device for treating fabrics comprising: a cabinet, said cabinet comprising:
a. a shell having two side walls and forming an opening; and
b. an extractable drawer comprising:
i. a drawer face comprising an outer surface; and
ii. a supporting member,
wherein said drawer face and said supporting member form a receiving region adapted to operably support a fabric, and
wherein said extractable drawer is adapted to fit within said shell and can be extracted through said opening of said shell;
c. a heating element contained within said device;
d. a passive heat management system within the shell, said passive heat management system formed of a material having a thermal conductivity, measured at 25° C., of from about 5 W/(mK) to about 430 W/(mK) and a linear thermal expansion coefficient of from about 2 to about 100 (×10 −6 in/in-° F.); and
e. an air flow path positioned to direct air through said receiving region.
2. The device of claim 1 , wherein the passive heat management system comprises at least one sheet adjacent to at least one side wall of the shell.
3. The device of claim 2 , wherein the passive heat management system comprises two sheets, wherein each sheet is adjacent to one of the side walls of the shell.
4. The device of claim 2 , wherein the sheet is corrugated.
5. The device of claim 2 , wherein the sheet has a three dimensional thickness of from about 1 mm to about 4 cm.
6. The device of claim 2 , wherein the sheet comprises one or more apertures.
7. The device of claim 6 , wherein the apertured sheet has an average aperture area of from about 0.5 cm 2 to about 9 cm 2 .
8. The device of claim 2 , wherein the sheet comprises aluminum, stainless steel or a mixture thereof.
9. The device of claim 2 , wherein the sheet comprises more than one layer.
10. The device of claim 2 , wherein at least a portion of the sheet is coated with zirconium, tin, chromium, titanium, fluoride, phosphates, hafnium, copolymers of vinylidene salts, acrylic/itaconic acids, or mixtures thereof.
11. The device of claim 2 , wherein at least a portion of the sheet is coated with titanium.
12. The device of claim 11 , wherein the coated portion of the sheet is oriented towards the receiving region of the device.
13. The device of claim 2 , wherein at least a portion of the sheet has a reflective surface.
14. The device of claim 13 , wherein the coated portion of the sheet is oriented towards the receiving region of the device.
15. The device of claim 1 , wherein said air flow path comprises an air circulation member, operably positioned to direct air through said air flow path and an optional air filtering system.
16. The device of claim 1 , wherein said heating element is a heating wire or coil, an infrared lamp, a microwave heating element, or a combination thereof.
17. The device of claim 2 , wherein the sheet is generally planar, wherein the sheet has arcuate portions, or a combination thereof.