Telecom shelter cooling and control system
First Claim
1. A system for providing alternative cooling, in addition to an air conditioning (A/C) system, to a cabinet housing electrical equipment, the system comprising:
- a blower subsystem including one or more blowers for drawing air from outside of the cabinet into the cabinet, the blower subsystem comprising a bank of blower units and a path of airflow from outside of the cabinet into the cabinet that is absent an evaporator element of an A/C unit;
a damper subsystem including a louver arrangement for controlling air exhaust;
a controller operated from a DC supply, the controller including a microprocessor having at least a first analog input, a second analog input, a plurality of alarm inputs, one or more first control outputs, a second control output, and a third control output;
wherein;
the first analog input connects to a first thermistor to measure a first temperature inside the cabinet;
the second analog input connects to a second thermistor to measure a second temperature outside the cabinet;
the third control output connects to the A/C system for inhibiting or re- activating the A/C system based on at least the first temperature and the second temperature,the one or more first control outputs connect to the blower subsystem for respectively operating the one or more blowers based on at least the first temperature when the A/C system is inhibited or stopped for any reason;
the second control output connects to the damper subsystem for opening/closing the louver arrangement when the one or more blowers are operating/stopped.
2 Assignments
0 Petitions
Accused Products
Abstract
A system configured to provide cooling of electronic equipment in a shelter in combination with an air conditioning (A/C) system. The system includes one or more blowers for drawing air into the shelter, a damper arrangement for controlling air exhaust. The system further includes a DC powered controller coupled to the one or more blowers, the damper arrangement, and the A/C system. The controller is configured to receive at least a first analog input signal associated with a shelter-interior temperature, a second analog input signal associated with a shelter-exterior temperature, and a plurality of alarm input signals and to generate the one or more first control signals to control blower rotational speed, the second control signal to open/close the damper arrangement, and a third control signal to inhibit/activate the A/C system based on at least the first analog input signal, or the second analog input signal, or a plurality of alarm input signals, or a combination of these.
31 Citations
16 Claims
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1. A system for providing alternative cooling, in addition to an air conditioning (A/C) system, to a cabinet housing electrical equipment, the system comprising:
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a blower subsystem including one or more blowers for drawing air from outside of the cabinet into the cabinet, the blower subsystem comprising a bank of blower units and a path of airflow from outside of the cabinet into the cabinet that is absent an evaporator element of an A/C unit; a damper subsystem including a louver arrangement for controlling air exhaust; a controller operated from a DC supply, the controller including a microprocessor having at least a first analog input, a second analog input, a plurality of alarm inputs, one or more first control outputs, a second control output, and a third control output; wherein; the first analog input connects to a first thermistor to measure a first temperature inside the cabinet; the second analog input connects to a second thermistor to measure a second temperature outside the cabinet; the third control output connects to the A/C system for inhibiting or re- activating the A/C system based on at least the first temperature and the second temperature, the one or more first control outputs connect to the blower subsystem for respectively operating the one or more blowers based on at least the first temperature when the A/C system is inhibited or stopped for any reason; the second control output connects to the damper subsystem for opening/closing the louver arrangement when the one or more blowers are operating/stopped. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification