Superinsulation panel with thermoelectric device and method

• US 5,398,510 A
• Filed: 01/12/1994
• Issued: 03/21/1995
• Est. Priority Date: 01/12/1994
• Status: Expired due to Fees

• Current Assignee: Marlow Industries, Inc. (Coherent Corp.), Owens- Corning Fiberglas Technology Incorporated (Owens Corning)
• Original Assignee: Marlow Industries, Inc. (Coherent Corp.), Owens- Corning Fiberglas Technology Incorporated (Owens Corning)
• Inventors: Arch, Barry J., McGrath, Ralph D., Gilley, Michael D., Criscuolo, Lance
• Primary Examiner(s): Sollecito, John M.
• Application Number:
  US08/180,456
• Time in Patent Office: 433 Days
• Field of Search: 62/3.2, 62/3.7, 62/3.64, 62/3.4, 62/3.6
• US Class Current: 62/3.6
• CPC Class Codes: F25B 21/02 using Peltier effect; using Nernst-Ettinghausen effect
• CPC Class Codes: F25B 2321/023 Mounting details thereof
• CPC Class Codes: F25D 11/00 Self-contained movable devices, e.g. domestic refrigerators
• CPC Class Codes: F25D 2201/14 using subatmospheric pressure
• CPC Class Codes: H10N 10/00 Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects integrated devices or assemblies of multiple devices H10N19/00

Abstract

A superinsulation panel and thermoelectric assembly are provided to maintain the temperature within a refrigerator or other type of enclosed structure at a desired value. The thermoelectric assembly includes a thermoelectric device having a hot sink and a cold sink. The superinsulation panel is preferably disposed between the hot sink and the cold sink. A cold finger is positioned within the superinsulation panel to transfer heat energy from the cold sink to the thermoelectric device which in turn transfers the heat energy to the hot sink. A plurality of posts may also be disposed within the superinsulation panel for use in coupling the thermoelectric assembly with the superinsulation panel.

Claims

1. A superinsulation panel having a thermoelectric assembly mounted thereon for controlling the temperature within an enclosed structure comprising:

the superinsulation panel formed in part by an envelope having a first wall and a second wall;

a thermoelectric device with a first heat sink disposed on one side of the thermoelectric device and the other side of the thermoelectric device contacting the exterior of the first wall of the envelope;

a second heat sink contacting the exterior of the second wall; and

a cold finger disposed within the envelope between the first wall and the second wall for use in transferring heat energy from the second heat sink to the thermoelectric device.

2. The superinsulation panel of claim 1 further comprising:

a plurality of posts, formed from material with a high resistance to thermal energy transfer, disposed within the envelope between the first wall and the second wall; and

a plurality of bolts extending through the respective heat sinks and engaged with openings in associated posts for use in mounting the first heat sink and the second heat sink to the superinsulation panel.

3. The superinsulation panel as defined in claim 1 further comprising a vacuum panel filled with insulating material selected from the group consisting of mineral fiberboard, glass beads, and microporous filler material.

4. The superinsulation panel of claim 1 wherein the enclosed structure further comprises a refrigerator.

5. The superinsulation panel of claim 1 wherein the enclosed structure further comprises a refrigerator with the superinsulation panel installed on top of the refrigerator.

6. The superinsulation panel of claim 1 having an R-value per inch greater than approximately twenty (R20/inch).

7. The superinsulation panel of claim 1 further comprising the envelope formed from gas impervious material and a vacuum sealed within the envelope.

8. The superinsulation panel as defined in claim 1 further comprising a vacuum between 10^-4 Torr and 10 Torr sealed within the envelope and mineral fiberboard disposed between the first wall and the second wall.

9. The superinsulation panel of claim 1 wherein the thermoelectric device is mounted on the first wall with an epoxy compound and the second heat sink is mounted on the second wall with an epoxy compound.

10. A thermoelectric assembly mounted on a superinsulation panel for controlling the temperature within an enclosed structure comprising:

the superinsulation panel formed in part by an envelope having a first wall and a second wall;

a thermoelectric device with a first heat sink disposed on one side of the thermoelectric device and the other side of the thermoelectric device contacting the exterior of the first wall of the envelope;

a second heat sink contacting the exterior of the second wall; and

a cold finger disposed within the envelope between the first wall and the second wall for use in transferring heat energy from the second heat sink to the thermoelectric device.

11. The thermoelectric assembly of claim 10 further comprising:

a plurality of posts, formed from thermally non-conductive material, disposed within the envelope between the first wall and the second wall; and

a plurality of bolts extending through the respective heat sinks and engaged with openings in associated posts for use in mounting the first heat sink and the second heat sink to the superinsulation panel.

12. The thermoelectric assembly of claim 10 wherein the superinsulation panel further comprises a vacuum panel filled with insulating material selected from the group consisting of mineral fiberboard, glass beads, and microporous filler material.

13. The thermoelectric assembly of claim 10 further comprising a first liner disposed adjacent to the first wall and a second liner disposed adjacent to the second wall.

14. The thermoelectric assembly of claim 10 wherein the enclosed structure further comprises a refrigerator with the superinsulation panel installed on top of the refrigerator.

15. The thermoelectric assembly of claim 10 with the superinsulation panel having an R-value per inch greater than approximately twenty (R20/inch).

16. The thermoelectric assembly of claim 10 further comprising the envelope formed from gas impervious material and a vacuum sealed within the envelope.

17. The thermoelectric assembly as defined in claim 10 further comprising a vacuum between 10^-4 Torr and 10 Torr sealed within the envelope and mineral fiberboard disposed between the first wall and the second wall.

18. The method of coupling a thermoelectric assembly with a superinsulation panel comprising the steps of:

forming the superinsulation panel from a gas-tight envelope having a first wall and a second wall;

placing a cold finger within the envelope between the first wall and the second wall;

mounting a thermoelectric device on the exterior of the first wall adjacent to the cold finger with a first heat sink attached to the thermoelectric device opposite from the cold finger; and

mounting a second heat sink on the second wall adjacent to the cold finger.

19. The method of claim 18 further comprising the steps of:

installing a plurality of posts within the superinsulation panel between the first wall and the second wall; and

inserting a plurality of bolts through the first heat sink and the second heat sink to engage threaded openings in associated posts for coupling the thermoelectric assembly with the superinsulation panel.

20. The method of claim 18 further comprising the steps of:

positioning the thermoelectric device adjacent to the cold finger with the first wall disposed therebetween and the first heat exchanger extending from the thermoelectric device opposite from the cold finger; and

mounting the second heat exchanger adjacent to the cold finger with the second wall disposed therebetween.