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 contr
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.
대표청구항▼
1. A system configured to provide controlled cooling of electronic equipment in an outdoor shelter in combination with an air conditioning (A/C) system powered by an AC power supply, the electronic equipment being powered by a DC supply, the system comprising: a blower subsystem comprising one or mo
1. A system configured to provide controlled cooling of electronic equipment in an outdoor shelter in combination with an air conditioning (A/C) system powered by an AC power supply, the electronic equipment being powered by a DC supply, the system comprising: a blower subsystem comprising one or more blowers configured to be mounted to the outdoor shelter to draw exterior air into the outdoor shelter along a path of airflow that excludes components of an A/C unit including a condenser, a compressor, and an evaporator;a damper arrangement configured to be mounted at an air exhaust region of the outdoor shelter; anda controller powered by the DC supply and coupled to the blower subsystem, the damper arrangement, and the A/C system, the controller being 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 configured to generate one or more first control signals, a second control signal, and a third control signal 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 thereof;wherein: the one or more first control signals respectively control an on/off operating state of the one or more blowers including rotational speeds of the one or more blowers;the second control signal controls opening and closing of the damper arrangement in correspondence with the on/off operating state of the one or more blowers; andthe third control signal inhibits/activates the A/C system. 2. The system of claim 1 wherein the plurality of alarm input signals comprises one or more of a smoke alarm input signal, a hydrogen alarm input signal, or an AC power fail alarm input signal, respectively received from a smoke sensor, or a hydrogen sensor disposed within the outdoor shelter, or an AC power monitoring module coupled to the AC power supply. 3. The system of claim 2 wherein the one or more first control signals stops the one or more blowers if the controller receives the smoke alarm input signal. 4. The system of claim 2 wherein the one or more first control signals operates the one or more blowers at a predetermined rotation speed if the controller receives the hydrogen alarm input signal. 5. The system of claim 2 wherein the one or more first control signals operates the one or more blowers at a rotation speed depending on the first analog input signal if the controller receives the AC power fail alarm input signal. 6. The system of claim 2 wherein when none of the smoke alarm input signal, or the hydrogen alarm input signal, or the AC power fail alarm input signal is received by the controller and the second analog input signal indicates that the shelter-exterior temperature is less than a predetermined value, then the third control signal comprises: a first signal for turning off the A/C system if a first criterion is satisfied;a second signal for operating the A/C system in cooling mode if a second criterion is satisfied; anda third signal for operating the A/C system in heating mode if a third criterion is satisfied. 7. The system of claim 6 wherein the first criterion is satisfied when the first analog input signal received by the controller indicates that the shelter-interior temperature is between a first temperature and a second temperature, the second temperature being higher than the first temperature. 8. The system of claim 7 wherein the one or more first control signals further respectively turn off the one or more blowers if the shelter-interior temperature is between the first temperature and a third temperature, the third temperature being higher than the first temperature and substantially lower than the second temperature. 9. The system of claim 8 wherein the one or more first control signals further respectively turn on the one or more blowers at a first rotation speed if the first criterion is satisfied and the shelter-interior temperature is above the third temperature by a first margin. 10. The system of claim 9 wherein the one or more first control signals further linearly increase the first rotation speed to a second rotation speed when the shelter-interior temperature is raised from the third temperature plus the first margin to the second temperature minus a second margin. 11. The system of claim 10 wherein the one or more first control signals maintain the second rotation speed if the interior temperature is above the second temperature minus the second margin. 12. The system of claim 6 wherein the second criterion is satisfied when the first analog input signal received by the controller indicates that the shelter-interior temperature is equal to or above the second temperature plus a third margin, or when the first analog input signal received by the controller indicates that the shelter-interior temperature drops to the second temperature minus a fourth margin and the second analog input signal received by the controller indicates that the shelter-exterior temperature is lower than the predetermined value. 13. The system of claim 12 wherein the one or more first control signals respectively turn off the one or more blowers if the second criterion is satisfied. 14. The system of claim 6 wherein the third criterion is satisfied when the first analog input signal received by the controller indicates that the shelter-interior temperature is not higher than the first temperature. 15. The system of claim 14 wherein the third control signal turns off the A/C system if the interior temperature is above the first temperature plus a fifth margin. 16. The system of claim 6 wherein the one or more first control signals further respectively turn off the one or more blowers and at the same time the third control signal activates the A/C system if the second analog input signal received by the controller indicates that the shelter-exterior temperature is no lower than the predetermined value. 17. The system of claim 1 wherein the one or more first control signals further respectively turn off the one or more blowers if the controller detects a voltage from the DC supply being below a predetermined value. 18. A method of cooling electronic equipment disposed in an outdoor shelter having an air conditioning (A/C) system and a damper arranged proximate an air exhaust region of the outdoor shelter, the method comprising: receiving at least a first analog input signal associated with a shelter-interior temperature;receiving a second analog input signal associated with a shelter-exterior temperature;receiving one or more alarm input signals; andoperating a blower subsystem comprising one or more blowers configured to be mounted to the outdoor shelter to draw exterior air into the outdoor shelter along a path of airflow that excludes components of an A/C unit including a condenser, a compressor, and an evaporator, including: controlling an on/off operating state of the blower subsystem in response to one or more of the first analog input signal, the second analog input signal, and the alarm input signals;controlling opening and closing of the damper in correspondence with the on/off operating state of the one or more blowers; andinhibiting or activating the A/C system in response to one or more of the first analog input signal, the second analog input signal, and the alarm input signals. 19. The method of claim 18 wherein the one or more alarm input signals comprises one or more of a smoke alarm input signal, a hydrogen alarm input signal, or an AC power fail alarm input signal, respectively received from a smoke sensor, or a hydrogen sensor disposed within the outdoor shelter, or an AC power monitoring module coupled to an AC power supply that provides power to the A/C system. 20. The method of claim 18 wherein the electronic equipment is powered by a DC supply, the method further comprising receiving an indication of a voltage level of the DC supply and turning off the one or more blowers if the voltage level is below a predetermined value.
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이 특허에 인용된 특허 (9)
Han Jake Jin Kyu ; Flores Michael A., Base station heat management system.
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