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Collapsible solar refrigerator

a solar refrigerator and solar energy technology, applied in the field of portable refrigeration equipment and methods, can solve the problems of not providing as much insulation in the construction, affecting the overall efficiency and effect of the overall system, and the overall structure is difficult to handl

Inactive Publication Date: 2015-10-15
SST TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a portable refrigerator that can be transitioned between a functional mode and a collapsed mode for cold storage of foodstuffs or drinks. The refrigerator includes a chiller circuit and a front wall, rear wall, top wall, base, and sidewalls that enclose a storage space when in the functional mode. The front wall, rear wall, top wall, and sidewalls are foldable at their place of contact with a living hinge, allowing for easy collapsing and compact storage when in the collapsed mode. The top wall may also have solar panels for energy generation. The collapsible refrigerator is secured in the collapsed mode and can be easily stored. The invention provides a portable refrigerator that is convenient, compact, and easy to use.

Problems solved by technology

However, these constructions do not provide as much insulation as the conventional ice chests and their use is a compromise at best in terms of efficiency versus convenience.
In addition, if the soft-sided coolers were fitted with the mechanicals for chilling, the overall structure would be difficult to handle, since part would be rigid and inflexible and part would be compactable and crushable.
While such units would fulfill part of the equation for storage purposes, the overall efficiency and effect would not meet the expectations of those users who desired to have the equivalent of a portable chiller that would adequately refrigerate their foodstuffs and drinks.
However, none of the portable chillers in the prior art are truly compactable or collapsible without some concurrent sacrifice in efficiency, convenience or durability.

Method used

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Examples

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example 1

[0048]To recap, the present invention is a collapsible / foldable portable solar refrigerator / freezer and or warmer that can also collapse and or fold up three different ways for portability. The invention is useful for camping, hiking, road trips, shopping, runs off of one's car, or detachable solar panel the collapsible portable solar car fridge / freezer is powered by a 25 watt or more solar panel and or a deep cycle solar battery. While in use the fridge / freezer can be powered by the batteries stored charge for up to 9 hr, with a 22-amp or more deep cycle battery or it can be powered directly by the sun through the solar panel. There is a switch that allows one to pick which power method they prefer to use.

[0049]The battery can be charged in approximately 0.2 hours while plugged into a car cigarette lighter, while at the same time powering the collapsible portable solar fridge / freezer. The battery can be charged in approximately 0.8 hours by the solar panel alone. Therefore it can k...

example 2

[0075]Another embodiment of the present invention is shown in FIGS. 8(a)-(h). USE charging ports are added, as shown in FIG. 8(h). The characteristics of this embodiment are as follows:

[0076]Portable collapsible freezer-refrigerator-warmer

[0077]80 or 30 quart storage capacity

[0078]Easy-to-read control panel

[0079]AC and DC power adapters included for household or vehicle use

[0080]Compressor-based cooling for fast freezing

[0081]Insulated lid

[0082]Retractable handle for easy transport

[0083]Rounded edges for added safety

[0084]Durable, rugged design

[0085]Built-in detachable solar cells 102 that charge the ion-lithium smart battery for all night usage

[0086]Anywhere Fridge 80 or 30 Quart 12 Volt AC & DC Portable Fridge / Freezer / warmer

[0087]Fast freeze function rapidly cools unit to −8° F.

[0088]Temperature range: −8° F. to 75° F.

[0089]AC power lead with 8′ detachable power cord included

[0090]DC power lead with 8′ detachable power cord included

[0091]2 built-in USB charging ports

[0092]Input vo...

example 3

[0103]Another embodiment of the present invention, including a different wheel assembly, illustrating the manner of folding, and showing solar cells 102 (preferably detachable), is shown in FIG. 9.

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Abstract

A portable refrigerator transitionable between a functional mode and a collapsed mode for use in the cold storage of foodstuffs or drinks comprising a chiller circuit, and a front wall, a rear wall, a top wall, a base, and at least a pair of sidewalls combined together to enclose a storage space when the portable refrigerator is in the functional mode, wherein the storage space is controllably cooled by the chiller circuit, and wherein the front wall, the rear wall, the top wall and the side walls are inwardly foldable to form a compact package when the portable refrigerator is in the collapsed mode, and wherein the top wall comprises one or more solar panels thereon.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to and the benefit of the filing of U.S. Provisional Patent Application Ser. No. 61,842,024, entitled “Collapsible Refrigerator”, filed on Jul. 2, 2013, and the specification and claims thereof are incorporated herein by reference.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not Applicable.INCORPORATION BY REFERENCE OF MATERIAL SUBMITTED ON A COMPACT DISC[0003]Not Applicable.COPYRIGHTED MATERIAL[0004]Not Applicable.BACKGROUND OF THE INVENTION[0005]1. Field of the Invention (Technical Field)[0006]The present invention relates to portable refrigeration apparatuses and methods.[0007]2. Description of Related Art[0008]Since the development of modern refrigeration systems, there has been a constant quest to improve the efficiency of these units in order to reduce size. Improvements in efficiency did transpire and the systems that are offered today are vastly improved over those in existe...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F25B27/00
CPCF25B27/007F25B27/005F25D23/06F25D2323/061F25D2400/38Y02P60/85
Inventor TROTTER, SPENCER
Owner SST TECH
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