Control system for thermoelectric refrigerator

Apparatus for controlling the temperature within an enclosed structure comprising:

• a thermoelectric device with a first heat sink disposed on one side of the thermoelectric device and a second heat sink disposed on the other side of the thermoelectric device;
• an electrical motor mounted on the enclosed structure adjacent to the thermoelectric device;
• a rotating shaft extending through the electric motor and driven by the motor with a first impeller mounted on one end of the rotating shaft for providing a first air flow and a first magnet mounted on the opposite end of the rotating shaft, the motor and the first impeller mounted on the exterior of the enclosed structure;
• a second impeller for providing a second air flow mounted on the interior of the enclosed structure with a second magnet attached thereto and disposed adjacent to and aligned with the first magnet with a portion of the enclosed structure disposed between the first magnet and the second magnet, the second impeller being driven by the motor, first magnet, and second magnet;
• the first impeller located adjacent to the first heat sink and the second impeller located adjacent to the second heat sink;
• and
• a plurality of thermoelectric elements, the plurality of thermoelectric elements arranged in a first group and a second group, the thermoelectric elements of the first group connected electrically in series with each other and the thermoelectric elements of the second group connected electrically in series with each other.

Apparatus for controlling the temperature within an enclosed structure comprising:

• a thermoelectric device with a first heat sink disposed on one side of the thermoelectric device and a second heat sink disposed on the other side of the thermoelectric device;
• an electrical motor mounted on the enclosed structure adjacent to the thermoelectric device;
• a rotating shaft extending through the electric motor and driven by the motor with a first impeller mounted on one end of the rotating shaft for providing a first air flow and a first magnet mounted on the opposite end of the rotating shaft, the motor and the first impeller mounted on the exterior of the enclosed structure;
• a second impeller for providing a second air flow mounted on the interior of the enclosed structure with a second magnet attached thereto and disposed adjacent to and aligned with the first magnet with a portion of the enclosed structure disposed between the first magnet and the second magnet, the second impeller being driven by the motor, first magnet, and second magnet;
• a plurality of thermoelectric elements, the plurality of thermoelectric elements arranged in a first group and a second group, the thermoelectric elements of the first group connected electrically in series with each other and the thermoelectric elements of the second group connected electrically in series with each other;
• and
• a switch electrically connected between the first group of thermoelectric elements and the second group of thermoelectric elements, the switch having a first position which connects the first group of thermoelectric elements electrically in series with the second group of thermoelectric elements and a second position which connects the first group of thermoelectric elements electrically in parallel with the second group of thermoelectric elements.

Apparatus for controlling the temperature within an enclosed structure comprising:

• a thermoelectric device with a first heat sink disposed on one side of the thermoelectric device and a second heat sink disposed on the other side of the thermoelectric device;
• an electrical motor mounted on the enclosed structure adjacent to the thermoelectric device;
• a rotating shaft extending through the electric motor and driven by the motor with a first impeller mounted on one end of the rotating shaft for providing a first air flow and the first impeller mounted on the exterior of the enclosed structure;
• a second impeller for providing a second air flow mounted on the interior of the enclosed structure opposite from and aligned with the first impeller;
• the first impeller located adjacent to the first heat sink and the second impeller located adjacent to the second heat sink;
• the second heat sink disposed within the second air flow from the second impeller;
• a container mounted on the interior of the enclosed structure comprising a medium suitable for storing thermal energy;
• and
• the container disposed within the second air flow from the second impeller.

Apparatus for controlling the temperature within an enclosed structure comprising:

• a thermoelectric device with a first heat sink disposed on one side of the device and a second heat sink disposed on the other side of the device;
• an electrical motor mounted on the enclosed structure adjacent to the thermoelectric device;
• a rotating shaft extending through the electric motor and driven by the motor with an impeller mounted on one end of the rotating shaft for providing an air flow and first magnet mounted on the opposite end of the rotating shaft, the motor and impeller mounted on the exterior of the enclosed structure;
• a second impeller for providing an air flow mounted on the interior of the enclosed structure with a second magnet attached thereto and disposed adjacent to the first magnet with a portion of the enclosed structure disposed between the first magnet and the second magnet, the second impeller being driven by the motor, first magnet, and second magnet;
• a container mounted on the interior of the enclosed structure comprising a medium suitable for storing thermal energy;
• and
• a by-pass valve having a first position for directing air from the second impeller to the container and a second position for diverting air from the second impeller away from the container.

Apparatus for controlling the temperature within an enclosed structure comprising:

• a thermoelectric device with a first heat sink disposed on one side of the device and a second heat sink disposed on the other side of the device;
• an electrical motor mounted on the enclosed structure adjacent to the thermoelectric device;
• a rotating shaft extending through the electric motor and driven by the motor with a first impeller mounted on one end of the rotating shaft for providing a first air flow, the motor and impeller mounted on the exterior of the enclosed structure;
• a second impeller for providing a second air flow mounted on the interior of the enclosed structure, the second impeller being driven by the motor;
• a container mounted on the interior of the enclosed structure comprising a medium suitable for storing thermal energy;
• and
• a bypass valve having a first position for directing air from the second impeller to the container and a second position for diverting air from the second impeller away from the container.

Apparatus for controlling the temperature within an enclosed structure comprising:

• a thermoelectric device with a first heat sink disposed on one side of the device and a second heat sink disposed on the other side of the device;
• an electrical motor mounted on the enclosed structure adjacent to the thermoelectric device;
• a rotating shaft extending through the electric motor and driven by the motor with a first impeller mounted on one end of the rotating shaft for providing a first air flow, the motor and impeller mounted on the exterior of the enclosed structure;
• a second impeller for providing a second air flow mounted on the interior of the enclosed structure;
• a container mounted on the interior of the enclosed structure comprising a medium suitable for storing thermal energy;
• and
• a bypass valve having a first position for directing air from the second impeller to the container and a second position for diverting air from the second impeller away from the container.