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US4627242A Expired / Lapsed US ⏱️ 0.0 years remaining

Thermoelectric cooler

Assignee: Vapor Corp
•
Filing: 1984-04-19
•
Granted: 1986-12-09
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Expires: 2004-04-19
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Abstract

Abstract A thermoelectric cooler of rugged construction for use in cabs of a railway locomotive includes a housing with a storage compartment mounted therein surrounded by insulation. The compartment is fabricated of thermoconductive material and includes flat sides without protuberances. A plurality of thermoconductive coupling blocks are secured to the sides of the compartment. A thermoelectric module of substantially the same size as the coupling pad is secured to each pad with the cold face of the module against the pad. An extruded aluminum heat exchanger with a plurality of parallel fins is secured to the hot side of each thermoelectric module to draw off heat and dissipate it to the surrounding environment. The fins are spaced apart a predetermined, optimum distance to obtain maximum heat transfer. A support and spot shim are employed to secure each heat exchanger to a coupling pad. Each coupling pad, thermoelectric module and heat exchanger are secured to the storage compartment by fasteners. Each fastener is insulated by an insulating bushing and one or more Belleville washers are mounted on each fastener to compensate for thermal cycling of the assembly due to environmental temperature changes.

Inventors

  • 👤 Shlomo Beitner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 07:31
CPC Classifications
F; F25; F25B; F25B21/00; F25B21/02; F25D; F25D11/00; H; H10; H10N; H10N10/00; H10N10/10; H10N10/13; F25D23/00; F25D23/02; F25D23/021

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 88 words
A thermoelectric cooler, comprising: a storage compartment for the storage of items therein, at least one, separate, detached coupling pad fabricated of thermoconductive material, means for attaching said coupling pad onto said storage compartment, a thermoelectric module secured to said pad with the cold face of said module against said pad; and means mounting a heat exchanger on the hot face of said module in heat transfer relationship comprising; at least two fasteners, a support bar and a spot shim between said heat exchanger and said support bar.
Claim 2
Dependent Claim 88 words
A thermoelectric cooler, comprising: a storage compartment for the storage of items therein, at least one, separate, detached coupling pad fabricated of thermoconductive material, means for attaching said coupling pad onto said storage compartment, a thermoelectric module secured to said pad with the cold face of said module against said pad; and means mounting a heat exchanger on the hot face of said module in heat transfer relationship comprising; at least two fasteners, a support bar and a spot shim between said heat exchanger and said support bar.
Claim 3
Dependent Claim 20 words
The cooler set forth in claim 1 wherein said coupling pad is substantially the same size as said thermoelectric module.
Claim 4
Dependent Claim 41 words
The cooler set forth in claim 1 wherein said heat exchanger comprises a plurality of aluminum extruded fins wherein each fin is spaced from an adjacent fin by a predetermined distance to maximize heat transfer, said spacing defining an interfin base.
Claim 5
Dependent Claim 57 words
The cooler set forth in claim 3 wherein said mounting means further comprises; means mounting said heat exchanger on said coupling pad; and an insulating bushing between said fastener and said coupling pad, and resilient means on said fastener between said bushing and said coupling pad, wherein compressive forces between said module and coupling pad are controlled.
Claim 6
Dependent Claim 22 words
The cooler set forth in claim 4 further comprising an insulating void around a portion of said fastener adjacent said storage compartment.
Claim 7
Dependent Claim 69 words
An assembly for coupling a thermoelectric module in energy transfer relationship with a storage compartment, said assembly comprising; a coupling pad substantially the same size as said thermoelectric module, means for securing said coupling pad and said thermoelectric module to said storage compartment, and a support bar and spot shim for use with said securing means to secure said heat exchanger to said coupling pad and said thermoelectric module.
Claim 8
Dependent Claim 69 words
An assembly for coupling a thermoelectric module in energy transfer relationship with a storage compartment, said assembly comprising; a coupling pad substantially the same size as said thermoelectric module, means for securing said coupling pad and said thermoelectric module to said storage compartment, and a support bar and spot shim for use with said securing means to secure said heat exchanger to said coupling pad and said thermoelectric module.
Claim 9
Dependent Claim 27 words
The assembly set forth in claim 6 further comprising a heat exchanger including a plurality of extruded aluminum fins spaced a predetermined distance apart from each other.
Claim 10
Dependent Claim 29 words
The assembly set forth in claim 6 wherein said securing means includes at least one fastener, and insulating bushing on said fastener and a Belleville washer surrounding said fastener.

References Cited (Backward Citations)

US3209547A Cited
US4326383A Cited
US4383414A Cited
US4400948A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-12-08 1990-06-09 1990-12-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-12-08 1994-06-09 1994-12-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-12-08 1998-06-09 1998-12-09 $7700.00 Window Closed / Lapsed

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