A refrigerated shipping container having an integrated sustainable energy generation capability

Abstract

A refrigerated shipping container having an integrated sustainable energy generation capability, comprises: a plurality of inner surfaces; a plurality of outer surfaces; a plurality of photovoltaic (PV) solar panel arrays; a plurality of receiving elements mounted to at least a portion of at least one of the outer surfaces, wherein the receiving elements are adapted to accept and secure the PV solar panel arrays to the outer surface; at least one rechargeable battery; a refrigeration unit; a shock-absorbing mechanism located between the receiving elements and the plurality of PV solar panel arrays; and a stowing mechanism mounted to at least one outer surface of the plurality of outer surfaces; and at least one insulation board coupled to at least a portion of at least one of the plurality of inner surfaces.

Description

A REFRIGERATED SHIPPING CONTAINER HAVING AN INTEGRATED SUSTAINABLE ENERGY GENERATION CAPABILITYCROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 690,601 filed on September 4, 2024, the contents of which are incorporated herein by reference.TECHNICAL FIELD

[0002] The present disclosure generally relates to refrigerated shipping (RS) containers. More specifically, it pertains to refrigerated shipping containers with integrated sustainable energy generation capabilities.BACKGROUND

[0003] Refrigerated shipping containers are essential for transporting perishable goods over long distances. Traditionally, these containers rely on external power sources or fossil fuels for refrigeration, which can be costly and environmentally unfriendly.

[0004] The use of sustainable energy sources, such as solar power, presents an innovative solution to these challenges. Solar power offers a renewable and environmentally friendly alternative to traditional energy sources, reducing both operational costs and carbon emissions associated with refrigerated shipping.

[0005] Some existing solutions focus on integrating solar panels and batteries to provide power for refrigeration. These systems typically involve mounting photovoltaic (PV) solar panels on the container's outer surfaces to capture sunlight and convert it into electrical energy.

[0006] However, despite the advancements in integrating solar energy into refrigerated shipping containers, there remain significant challenges. One of the primary issues is the need for further improvements in energy efficiency.

[0007] Durability is another critical concern. Refrigerated shipping containers are subjected to harsh conditions during transportation. Ensuring that the solar panels and associated components can withstand these conditions without compromising their performance is essential for the reliability of the system.

[0008] It would therefore be advantageous to provide a solution that overcomesthe challenges noted above.SUMMARY OF THE DISCLOSURE

[0009] A summary of several example embodiments of the disclosure follows. This summary is provided for the convenience of the reader to provide a basic understanding of such embodiments and does not wholly define the breadth of the disclosure. This summary is not an extensive overview of all contemplated embodiments and is intended to neither identify key or critical elements of all embodiments nor to delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more embodiments in a simplified form as a prelude to the more detailed description that is presented later. For convenience, the term “certain embodiments” may be used herein to refer to a single embodiment or multiple embodiments of the disclosure.

[0010] Certain embodiments disclosed herein include a refrigerated shipping container having an integrated sustainable energy generation capability. The refrigerated shipping container comprises a plurality of inner surfaces; a plurality of outer surfaces; a plurality of photovoltaic (PV) solar panel arrays; a plurality of receiving elements mounted to at least a portion of at least one of the outer surfaces, wherein the receiving elements are adapted to accept and secure the PV solar panel arrays to the outer surface; at least one rechargeable battery; a refrigeration unit; a shock-absorbing mechanism located between the receiving elements and the plurality of PV solar panel arrays; and a stowing mechanism mounted to at least one outer surface of the plurality of outer surfaces; and at least one insulation board coupled to at least a portion of at least one of the plurality of inner surfaces.BRIEF DESCRIPTION OF THE DRAWING

[0011] In the drawing:

[0012] FIG. 1A is an isometric view of a refrigerated shipping container having integrated sustainable energy generation capabilities, according to some embodiments.

[0013] FIG. 1 B is an alternative isometric view of a refrigerated shipping container having integrated sustainable energy generation capabilities, according to some embodiments.

[0014] FIG. 2 is an interior side view of the refrigerated shipping container, according to a first embodiment.

[0015] FIG. 3A is an interior side view of the refrigerated shipping container, according to a second embodiment.

[0016] FIG. 3B is a detail view of a receiving element, socket and designated pin, according to an embodiment.

[0017] FIG. 4A is a front side view with a vanishing point of a refrigerated shipping container having a horizontal stowing mechanism of solar panel arrays in a stowed position, according to an embodiment.

[0018] FIG. 4B is a front side view with a vanishing point of a refrigerated shipping container having a horizontal stowing mechanism of solar panel arrays in a deployed position, according to an embodiment.

[0019] FIG. 5A is a front side view with a vanishing point of a refrigerated shipping container having an alternative folding mechanism of solar panel arrays in a folded position, according to an embodiment.

[0020] FIG. 5B is a front side view with a vanishing point of a refrigerated shipping container having an alternative folding mechanism of solar panel arrays in an unfolded position, according to an embodiment.DETAILED DESCRIPTION

[0021] It is important to note that the embodiments disclosed herein are only examples of the many advantageous uses of the innovative teachings herein. In general, statements made in the specification of the present application do not necessarily limit any of the various claimed embodiments. Moreover, some statements may apply to some inventive features but not to others. In general, unless otherwise indicated, singular elements may be in plural and vice versa with no loss of generality. In the drawings, like numerals refer to like parts through several views.

[0022] FIG. 1A and 1 B show an isometric view of an illustrative refrigerated shipping (RS) container 100 having integrated sustainable energy generation capabilities, according to some embodiments. The RS container 100 includes a plurality of inner surfaces 110, a plurality of outer surfaces 120, and a plurality of photovoltaic (PV) solarpanel arrays 130.

[0023] Shipping containers, such as the RS container 100, also known as intermodal containers or International Organization for Standardization (ISO) containers, are large, standardized shipping boxes designed for the transport of goods across different modes of transportation. Shipping containers have revolutionized global trade by providing a standardized, secure, and efficient means of transporting goods across vast distances.

[0024] The inner surfaces 110 may include the floor, inner walls and the ceiling of the RS container 100. The outer surface 120 may include the bottom, outer walls and the roof of the RS container 100.

[0025] Photovoltaic (PV) solar panels, such as the solar panel arrays 130, are devices that convert sunlight directly into electricity. PV panels are made up of many solar cells, which contain semiconductor materials, usually silicon. When sunlight hits these cells, the energy from the light is absorbed, causing electrons in the semiconductor to become energized and break free from their atoms. Solar cells have electric fields that force the free electrons to move in a certain direction, creating a flow of electric current. This movement of electrons generates direct current (DC) electricity. The DC electricity produced by the solar cells is converted into alternating current (AC) electricity by an inverter. AC electricity is the standard electrical current used to power most homes and businesses. It should be noted that solar panel array 130 may include one or more solar panels. The RS container 100 may include multiple solar panel arrays that may be coupled to the outer surfaces 120 of the RS container 100, such as the roof and the walls of the RS container 100.

[0026] FIG. 2 shows a cross-section view of the refrigerated shipping container of FIGs. 1 A and 1 B, according to a first embodiment. In an embodiment, the RS container 100 may further include at least one rechargeable battery 210, a refrigeration unit 220, a power inverter 230, and one or more insulation boards 240.

[0027] A rechargeable battery is an energy storage device that can be charged, discharged, and recharged many times, as opposed to a disposable battery, which is supplied fully charged and discarded after use. Rechargeable batteries are typically composed of one or more electrochemical cells and use different chemistries includinglithium-ion, nickel-cadmium (NiCd), nickel-metal hydride (NiMH), and lead-acid. The rechargeable battery is configured to store electric power. In an embodiment, the rechargeable battery 210 is configured to store electric power produced by the solar panels 130.

[0028] According to further embodiment, the RS container 100 further includes a power outlet that is designed to provide a direct connection to an external power source, such as a generator, or grid power, which can be used to charge the rechargeable battery 210. The RS container 100 can be plugged into the power outlet to recharge the rechargeable battery 210.

[0029] The refrigeration unit 220 enables control of the temperature within refrigerated shipping container 100. The refrigeration unit 220 may include several components such as an evaporator 220-1 , a condenser 220-2, etc. In an embodiment, the refrigeration unit 220 is powered by at least one of the plurality PV solar panel arrays 130 and the at least one rechargeable battery 210.

[0030] The power inverter 230 is configured to convert DC electricity produced by the solar panels 130 into AC electricity. In an embodiment, the rechargeable battery 210 is connected to the plurality of PV solar panel arrays 130 via the power inverter 230.

[0031] The insulation boards 240 are thermal insulation materials which are used to minimize heat exchange between the interior of the RS container 100 and the external environment, enhancing the overall efficiency of the refrigeration unit 220.

[0032] FIG. 3 shows a cross-section view of the refrigerated shipping (RS) container, according to a second embodiment. In this embodiment, the RS container 100 may further include a plurality of receiving elements 310, such as the receiving element 310-1 and receiving element 310-2. The receiving elements 310 are mounted to at least a portion of the outer surface of the RS container, e.g., the outer surface 120 of the RS container. As noted herein, the outer surface 120 may include, among others, the roof and outer walls of the RS container 100. The receiving elements 310 are adapted to accept and secure the PV solar panel arrays 130 to the outer surface 120.

[0033] In an embodiment, each receiving element 310 includes a socket 315 designed to receive and secure the PV solar panel arrays 130 via a designated pin 317. To that end, each PV solar panel array 130 may include a set of designated pins 317 atthe bottom end of each solar panel array 130.

[0034] According to one embodiment, the RS container 100 further includes a shock-absorbing mechanism 320, such as the shock-absorbing mechanism 320-1 and the shock-absorbing mechanism 320-2. The shock-absorbing mechanism 320 is placed between the receiving elements 310 and the plurality of PV solar panel arrays 130. In an embodiment, the shock-absorbing mechanism 320 consists of at least one of: at least one spring, rubber strip, rubber grommet, a combination thereof, and the like.

[0035] The shock-absorbing mechanism 320 protects the solar panel arrays 130 from mechanical stresses and vibrations encountered during transportation. The shockabsorbing mechanism 320 further enables the solar panel arrays 130 to remain securely attached to the container while allowing for slight movements to mitigate the impact of shocks and vibrations. The shock-absorbing mechanism 320 not only enhances the durability of the solar panel arrays 130 but also helps maintain their efficiency, allowing for consistent energy generation throughout the transportation process.

[0036] FIG. 3 further illustrates the insulation boards 240, e.g., the insulation boards 240-1 through 240-7. As noted herein, the insulation boards 240 are thermal insulation materials used to minimize heat exchange between the interior of the RS container 100 and the external environment, enhancing the overall efficiency of the refrigeration unit 220.

[0037] The insulation boards 240 are attached to the inner surfaces of the RS container 100. For example, the insulation boards 240 may be coupled to at least one of the inner walls, ceiling, and floor of the RS container 100.

[0038] FIG. 4A shows a front-side view with a vanishing point of a refrigerated shipping (RS) container having a horizontal stowing arrangement of solar panel arrays in a stowed position, according to an embodiment. The horizontal stowing arrangement 400 is mounted to at least one outer surface of the plurality of outer surfaces, e.g., the outer surfaces 120 of FIG. 1 , of the RS container 100. The horizontal stowing mechanism 400 enables stowing, as shown in FIG. 4A, and deployment, as shown in FIG. 4B, of at least one of the plurality of PV solar panel arrays 130. In an embodiment, the horizontal stowing mechanism 400 is mounted to at least one outer surface, e.g. the outer surface 120 of FIG. 1A, via at least one receiving element, e.g., the receiving element 310 of FIG.3.

[0039] According to further embodiment, the horizontal stowing mechanism 400 consists of a set of horizontal rails, e.g., the horizontal rails 410 and 420 shown in FIG. 4B, that are mounted to the roof of the RS container 100. Each horizontal rail is designed to enable horizontal movement of one or more solar panel arrays 130. To the that end, each solar panel of the solar panel array 130 may include one or more pins that fit into the rails, enabling the horizontal movement of the solar panel array 130.

[0040] It should be noted that when the horizontal stowing mechanism 400 is in stowed position, as shown in FIG. 4A, only one solar panel array, e.g., the solar panel array 130-3, is being exposed to the sunlight. However, this position allows to safely transport the RS container 100, at high speed. On the other hand, when the horizontal stowing mechanism 400 is in a deployed position, as shown in FIG. 4B, more than one solar panel array, e.g., the solar panel arrays 130-1 , 130-2 and 130-3, are being exposed to the sunlight, allowing to produce more electric power.

[0041] FIG. 5A shows a front-side view with a vanishing point of a refrigerated shipping container having an alternative folding mechanism 500 of solar panel arrays in a folded position, according to an embodiment. The alternative folding mechanism 500 is mounted to at least one outer surface of the plurality of outer surfaces, e.g., the outer surfaces 120 of FIG. 1 , of the RS container 100. The alternative folding mechanism 500 enables folding, as shown in FIG. 5A, and unfolding, as shown in FIG. 5B, of at least one of the plurality of PV solar panel arrays 130. In an embodiment, the alternative folding mechanism 500 is mounted to at least one outer surface, e.g. the outer surface 120 of FIG. 1A, via at least one receiving element, e.g., the receiving element 31 O of FIG. 3. The alternative folding mechanism 500 consists of a set of hinges, e.g., the hinge 510 and hinge 520, which enable the solar panel arrays 130 to fold, e.g., into a folded or stowed position, as shown in FIG. 5A and unfolded into a deployed position, as shown in FIG. 5B. It is noted that the solar panel arrays 130-2 and 130-3 may continue to generate electric power even when maintained in folded position.

[0042] The disclosure offers numerous advantages over conventional refrigerated shipping containers by integrating sustainable energy generation capabilities. One of the primary benefits is the significant reduction in reliance on external powersources and fossil fuels. By harnessing solar energy through photovoltaic (PV) solar panel arrays, the RS container can generate its own electricity, leading to lower operational costs and a reduced carbon footprint. This sustainable approach aligns with global efforts to mitigate climate change and promotes the adoption of green technologies in the logistics and transportation industries.

[0043] Another key advantage of the disclosure is the enhanced energy efficiency achieved through advanced insulation materials and shock-absorbing mechanisms. The insulation boards minimize heat exchange between the interior of the container and the external environment, thus reducing the energy required for refrigeration. This ensures a consistent internal temperature, which is crucial for the safe transport of perishable goods. Additionally, the shock-absorbing mechanisms protect the PV solar panels from mechanical stresses and vibrations during transit, ensuring their durability and consistent energy generation. In addition, the folding mechanisms ensure that the RS container can perform efficiently in diverse environmental conditions and logistical scenarios.

[0044] Furthermore, the RS container's ability to operate independently of grid power makes it an ideal solution for remote and off-grid locations. In disaster relief operations or in regions with unstable power supply, the RS container can provide reliable refrigeration without the need for additional infrastructure. This capability enhances the container's utility and broadens its application scope, making it a valuable asset in various industries, including food distribution, pharmaceuticals, and emergency response.

[0045] It is important to note that the embodiments disclosed herein are only examples of the many advantageous uses of the innovative teachings herein. In general, statements made in the specification of the present application do not necessarily limit any of the various claimed embodiments. Moreover, some statements may apply to some inventive features but not to others. In general, unless otherwise indicated, singular elements may be in plural and vice versa with no loss of generality. In the drawings, like numerals refer to like parts through several views.

[0046] All examples and conditional language recited herein are intended for pedagogical purposes to aid the reader in understanding the principles of the disclosed embodiment and the concepts contributed by the inventor to furthering the art, and are tobe construed as being without limitation to such specifically recited examples and conditions. Moreover, all statements herein reciting principles, aspects, and embodiments of the disclosed embodiments, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future, i.e. , any elements developed that perform the same function, regardless of structure.

[0047] It should be understood that any reference to an element herein using a designation such as “first,” “second,” and so forth does not generally limit the quantity or order of those elements. Rather, these designations are generally used herein as a convenient method of distinguishing between two or more elements or instances of an element. Thus, a reference to first and second elements does not mean that only two elements may be employed there or that the first element must precede the second element in some manner. Also, unless stated otherwise, a set of elements comprises one or more elements.

[0048] As used herein, the phrase “at least one of’ followed by a listing of items means that any of the listed items can be utilized individually, or any combination of two or more of the listed items can be utilized. For example, if a system is described as including “at least one of A, B, and C,” the system can include A alone; B alone; C alone; 2A; 2B; 2C; 3A; A and B in combination; B and C in combination; A and C in combination; A, B, and C in combination; 2A and C in combination; A, 3B, and 2C in combination; and the like.

Claims

CLAIMSWhat is claimed is:

1. A refrigerated shipping container having an integrated sustainable energy generation capability, comprises: a plurality of inner surfaces; a plurality of outer surfaces; a plurality of photovoltaic (PV) solar panel arrays; a plurality of receiving elements mounted to at least a portion of at least one of the outer surfaces, wherein the receiving elements are adapted to accept and secure the PV solar panel arrays to the outer surface; at least one rechargeable battery; a refrigeration unit; a shock-absorbing mechanism located between the receiving elements and the plurality of PV solar panel arrays; and a stowing mechanism mounted to at least one outer surface of the plurality of outer surfaces; and at least one insulation board coupled to at least a portion of at least one of the plurality of inner surfaces.

2. The refrigerated shipping container of claim 1 , further comprising: a power inverter coupled to at least one of the PV solar panel arrays.

3. The refrigerated shipping container of claim 2, wherein the rechargeable battery is connected to the plurality of PV solar panel arrays via the power inverter.

4. The refrigerated shipping container of claim 1 , wherein the rechargeable battery is configured to store electric power produced by at least one of the PV solar panel arrays.

5. The refrigerated shipping container of claim 1 , wherein the refrigeration unit enables control of temperature within the refrigerated shipping container.

6. The refrigerated shipping container of claim 1 , wherein the refrigeration unit is powered by at least one of the plurality PV solar panel arrays and the at least one rechargeable battery.

7. The refrigerated shipping container of claim 1 , wherein the stowing mechanism allows stowing and deployment of at least one of the plurality of PV solar panel arrays.

8. The refrigerated shipping container of claim 1 , wherein the stowing mechanism is mounted to at least one outer surface of the plurality of outer surfaces via at least one receiving element of the plurality of receiving elements.

9. The refrigerated shipping container of claim 1 , wherein the stowing mechanism allows folding and unfolding of at least of at least one of the plurality of PV solar panel arrays.

10. The refrigerated shipping container of claim 9, wherein the stowing mechanism is a hinge.11 . The refrigerated shipping container of claim 1 , wherein the stowing mechanism comprises at least one slot that at least one of the PV solar panel arrays can slide into or out of.

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