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Collapsible solar refrigerator device

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: 2016-01-07
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 use in the cold storage of foodstuffs or drinks. The refrigerator includes a chiller circuit and a front wall, a rear wall, a top wall, a base, and at least a pair of sidewalls that enclose a storage space when in the functional mode. The front wall, rear wall, top wall, and sidewalls are foldable to form a compact package when in the collapsed mode. The top wall may also have solar panels thereon. The refrigerator is powered by a DC power supply and includes a handle for carrying when in the collapsed mode. The invention provides a portable refrigerator that is convenient 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

Experimental program
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Effect test

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 hours, 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 ca...

example 2

[0075]Another embodiment of the present invention is shown in FIGS. 8(a)-(h). USB 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 vol...

example 3

[0103]Still another embodiment of the present invention is shown in FIGS. 10 through 13. Regarding FIG. 10, a portable refrigerator 10 is shown in the collapsed mode and includes the front wall 12, the top wall(s) 16, the base 18, the one or more solar panels 102, the wheels 207 for rolling the portable refrigerator 10, and the handle 52. The chiller housing 208 is shown located within the front wall 12, as well as the digital temperature gauge 205 on the chiller circuit housing 208. Also shown are the one or more AC outlets 206 and the one or more USB outlets 202 on the chiller circuit housing 208 and the u-shaped bar 200 attached to the outside of the portable refrigerator 10.

[0104]FIG. 11 demonstrates the transition from the collapsed mode to the functional mode. Specifically, in this view can now be seen the at least a pair of side walls 20, the light source 201, which can be either a light-emitting diode light source or an ultraviolet light source or both, and the lockable latc...

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PUM

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Abstract

The invention is a portable refrigerator (10) that may transition between a functional mode for use in the cold storage of food and drinks and a collapsed mode for transportation. Wheels (207) with a handle (52) opposite provide the method of transportation. The food storage space is controllably cooled by a chiller circuit (60), which may be powered by one or more solar panels (10). The device includes USB and A / C outlets (202,206) so that the device can be also be used as a power source. It may also include a lockable latch (203) to keep the refrigerator space closed. It may also include a u-shaped bar (200) on the outside so that the device can be secured to a fixed object.

Description

[0001]This application is a continuation-in-part of prior application Ser. No. 14 / 322,278 filed Jul. 2, 2014, which claimed the benefit of the filing of Provisional Application Ser. No. 61 / 842,024, filed on Jul. 2, 2013. The specification and claims of both prior-filed applications are incorporated here by reference.BACKGROUND OF THE INVENTION[0002]The present invention relates to portable refrigeration apparatuses and methods.DESCRIPTION OF RELATED ART[0003]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 existence in the early 1900s. Advances in coolant chemistry and technology, in condenser and evaporator systems, and in the materials used to provide the insulated housing have all contributed to designs for coolers, refrigerators, chiller systems, and the like.[0004...

Claims

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Application Information

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IPC IPC(8): F25B27/00
CPCF25B27/007F25B2500/01F25B2500/18F25B27/005F25D11/003F25D23/06F25D2323/061F25D2400/12F25D2400/38Y02P60/85
Inventor TROTTER, SPENCER
Owner SST TECH
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