Abstract: A frame preferably engages a heat exchanger unit so the frame directs fluid flow into and out of the heat exchanger unit to substantially isolate a first fluid stream that enters and exits the heat exchanger unit from a second fluid stream that enters and exits the heat exchanger unit. Preferably, the frame substantially isolates the first fluid stream that enters and exits the heat exchanger unit from the second fluid stream that enters and exits the heat exchanger unit without placing the heat exchanger and frame in a separate housing.

Abstract: A filter system including a method for self cleaning the filter system of an electronic equipment enclosure where air flow is monitored either by monitoring fan performance of air flow velocity through the enclosure. The system includes two filters elements, an upstream ASHRAE or HEPA filter element to block particulate matter and a downstream PTFE filter element to block water vapor. The ASHRAE or HEPA filter element is relatively inexpensive and easy to clean. The PTFE filter element is more expensive and difficult to clean. Thus, the cheaper filter is used to protect the more expensive filter from contaminants and to increase its useful life.

Abstract: A filter system including a method for self cleaning the filter system of an electronic equipment enclosure where air flow is monitored either by monitoring fan performance of air flow velocity through the enclosure. The system includes two filters elements, an upstream ASHRAE or HEPA filter element to block particulate matter and a downstream PTFE filter element to block water vapor. The ASHRAE or HEPA filter element is relatively inexpensive and easy to clean. The PTFE filter element is more expensive and difficult to clean. Thus, the cheaper filter is used to protect the more expensive filter from contaminants and to increase its useful life.

Abstract: An equipment cabinet mounted on a concrete pad. The cabinet includes an upper equipment chamber, a lower back-up battery chamber and a heat exchanger. Ambient air is drawn across batteries in the lower chamber before being drawn into the heat exchanger to help cool electronic components in the upper chamber. Air in the upper chamber is separate circulated through the heat exchanger. A cold plate is placed beneath the batteries and is connected to a refrigeration system. A heating pad is located below the cold plate and is separated from the concrete pad by insulation. The cold plate and the heating pad are used to maintain the batteries at about 25° C. regardless of ambient temperatures so as to extend the useful lives of the batteries.

Abstract: A backup DC vent system for an equipment enclosure is disclosed. The system includes an air intake system which allows air to pass from the ambient environment through a battery compartment of the enclosure, through the floor and into the interior of the enclosure where components to be cooled are mounted. Internal air distribution is accomplished by an air distribution duct system. An air exhaust system is attached to a side of the enclosure and includes a door panel to selectively allow heated air flow from the enclosure interior, a fan mounted to a fan box which is mounted to the enclosure for sucking the air through the enclosure, and a cover to prevent wind driven rain water from impinging upon the fan or the interior of the enclosure.

Abstract: A backup DC vent system for an equipment enclosure is disclosed. The system includes an air intake system which allows air to pass from the ambient environment through a battery compartment of the enclosure, through the floor and into the interior of the enclosure where components to be cooled are mounted. Internal air distribution is accomplished by an air distribution duct system. An air exhaust system is attached to a side of the enclosure and includes a door panel to selectively allow heated air flow from the enclosure interior, a fan mounted to a fan box which is mounted to the enclosure for sucking the air through the enclosure, and a cover to prevent wind driven rain water from impinging upon the fan or the interior of the enclosure.

Abstract: A method and apparatus which extends the useful life of a lead-acid type battery by applying conductive cooling directly to the bottom surface of the battery to maintain the battery at a constant temperature of about 25° C. regardless of the ambient temperature surrounding the battery.

Abstract: A method which extends the useful life of a lead-acid type battery by applying conductive cooling or heating directly to the bottom surface of the battery to maintain the battery at a constant temperature of about 25° C. regardless of the ambient temperature surrounding the battery. The method for thermally managing the battery comprises the steps of providing an equipment cabinet having an equipment chamber, providing the cabinet with a battery compartment exposed to ambient temperature changes, providing the battery, placing the battery in the battery compartment, providing a cold plate having a surface substantially coextensive with the surface of the battery, placing the surface of the cold plate in direct contact with the surface of the battery, providing a heating pad, placing the heating pad in direct contact with the cold plate, providing an insulation pad, and placing the insulation pad between the heating pad and a mounting for the cabinet.

Abstract: A direct flow impingement cooling system for heat generating electronic components is disclosed. The system includes a panel containing the components and the panel is formed of a main housing and a cover housing hinged to move between opened and closed positions. Three fans are positioned downstream of three spiral shaped air intake patterns, each having 18 cone-shaped cutouts. Downstream of the fans is a back plate with three aligned openings and side wall air exhaust slots. Downstream of the slots are upper and side exhaust openings, where all of the openings provide for low impedance air flow such that high heat removal from densely packed components is achieved.

Abstract: An outdoor equipment cabinet enclosure designed to effectively dissipate heat generated by electrical equipment components housed therein includes a main interior section for housing active electronic components and a lower section configured to store banks of batteries for a stand-by power supply system with a lower wall separating the batteries from the electronic components in the main interior section. At least one heat exchanger is disposed in the main interior section and includes an inlet port and means for creating a circulating air flow path for interior air within the main interior section. An outdoor air flow path is defined by the lower wall and the upper surfaces of the batteries and at least one baffle is disposed within the outdoor air flow path which is configured to deflect outdoor air flowing across the upper surfaces of the batteries into the at least one heat exchanger.