Devices, systems, and methods are provided for heating and cooling substances, such as food and beverages. A portable device may have an exterior surface and an interior surface, with one or more heating elements positioned at least partially between the exterior surface and the interior surface, and with one or more cooling elements positioned at least partially between the exterior surface and the interior surface. The portable device may include one or more power sources operatively connected to the one or more heating elements and the one or more cooling element, and may include at least one processor that controls, based on the one or more power sources, activation of one of the one or more heating elements or the one or more cooling elements at a time.

In one aspect, a portable-smart refrigerator includes a lid assembly comprising a lid coupled with a lid bottom cover for fastening the lid assembly to an internal upper portion of a Polypropylene chamber assembly. The portable-smart refrigerator includes a grill assembly comprising a top base, a pump bracket, a middle base, a bottom base. The top based hold the pump bracket. the top base is coupled with the middle base. The middle base is coupled with the bottom base. The portable-smart refrigerator includes a cooling-coil assembly comprising a feeding tube, a top elbow, a bottom tube, a cooling coil. The top elbow is installed between two lengths of tubing/pipe to enable a change of direction and couples the feeding tube with the cooling coil. The cooling coil is coupled with the bottom tube. The portable-smart refrigerator includes the phase change material (PCM) chamber assembly that holds the cooling coil. The polypropylene chamber assembly is placed within an outer cylinder. A bottom portion of the Polypropylene chamber assembly is coupled with the grill assembly. A sleeve assembly forming a portion of the outer cylinder.

Refrigerator operation powers includes battery, solar, and electric. Designed for users needing energy saving appliances and users with power outages. It has at least two compartments for frozen and unfrozen food and drinks. Has retractable handle and assembled wheels to move refrigerator.

Microwave oven operation power includes battery, solar, and electric and is designed to prepare food and drinks. Designed for users with power outages or users needing energy efficient appliance. Has retractable handle and wheels to move microwave.

Cooktop grill operation power includes battery, solar, and electric. Designed to prepare food. It is designed for users who need energy saving appliance and users with power outages. Cooktop grill has at least five cooking options on top surface. Has retractable handle and at least four wheels to move cooktop grill.

Battery operated fireplace heater have three power options battery, electric, and solar. It has a retractable handle and four wheels for users to move fireplace heater. This fireplace heater is a fireplace and/or heater.

Dual blender mixer has three compartments for battery, electric, or solar power options. Dual blender mixer can prepare foods and drinks with at least two different containers.

A portable water bottle has a bottle body, a lid assembly detachably connected to an upper end of the bottle body, a filter mounted in the lid assembly, a base detachably connected to a lower end of the bottle body, a temperature control module mounted in the base, and a power module mounted in the base. Liquid stored in the bottle body can be filtered by the filter when being poured out of the bottle body, so as to allow a user can drink the liquid directly and immediately. Moreover, the temperature control module is capable of heating or cooling down the liquid in the bottle body, so as to provide the user with the liquid having the temperature that is suitable for ambient it temperature or physical conditions of the user.

An ice chest system includes an ice chest and first, second, third, and fourth legs removably securable with the ice chest. The ice chest includes a top, a bottom, and first, second, third, and fourth sides defining an ice bin. First and second pins are mechanically connected with the first, second, third, and fourth sides at each end thereof. The first, second, third, and fourth legs each include a first surface having first and second engagement slots and a second surface having first and second engagement slots. Securing the first, second, third, and fourth legs with the ice chest includes engaging the first and second engagement slots of the first, second, third, and fourth legs with the first and second pins of the first, second, third, and fourth sides.

An air duct assembly is provided that is configured to supply air to a compartment and including: an outer cover housing, configured to be fixed to an outer side of a compartment wall defining the compartment, an external accommodating cavity being defined inside the outer cover housing; an inner cover housing, configured to be disposed opposite to the outer cover housing on an inner side of the compartment wall, an internal accommodating cavity being defined inside the inner cover housing. An air inlet is formed in the outer cover housing, so as to allow external air to enter the external accommodating cavity via the air inlet. A vent is formed in the compartment wall, so that the external accommodating cavity communicates with the internal accommodating cavity. An air outlet is formed in the inner cover housing, so as to supply the air in the internal accommodating cavity to the inside of the compartment.

Disclosed embodiments include portable devices for cold chain storage and methods of fabricating portable devices for cold chain storage. In an illustrative embodiment, a portable device for cold chain storage includes a container defining therein a storage region. The container includes an inner cylinder, and the storage region is defined coaxially inwardly of the inner cylinder. The inner cylinder includes phase change material disposed therein, and the phase change material is in thermal communication with the storage region. The inner cylinder also includes evaporative coils disposed therein. The evaporative coils are embedded in the phase change material. The container also includes a thermally insulated outer cylinder. An outer wall of the outer cylinder is disposed radially outwardly of an outer wall of the inner cylinder.

A portable cooler container is provided. The temperature control system cools a chamber of the container to transport temperature sensitive contents via the container. An electronic display screen on one of the lid and the container body selectively displays an electronic shipping label for the portable cooler container.

The present work depicts a thermal device for solid and liquid products consisting of a container with an external surface with one or more thermoelectric plates (20) or micro heat exchangers interconnected with a micro-compressor heat sink (30); this container (10) is placed on an eccentric axle (40) connected to a rotary electric motor or moving device (50) which increases the heat transfer coefficient by internal convection of the container (10) where the element to be cooled or heated is stored.

A portable cooler container is provided. The temperature control system cools a chamber of the container to transport temperature sensitive contents via the container. An electronic display screen on one of the lid and the container body selectively displays an electronic shipping label for the portable cooler container.