Rack-mounted air-conditioner used in cabinet-type data center

[0022] The present invention provides a rack-mounted air conditioner used in a cabinet-type data center. In order to make the objectives, technical solutions and effects of the present invention clearer and clearer, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0023] To solve the problems existing in the existing technology, please refer to figure 1 As shown, a rack-mounted air conditioner for a rack-type data center includes an outdoor unit 1 for cooling, and an indoor unit 10 connected to the outdoor unit 1 for placing electrical equipment and providing cold air for the electrical equipment, The indoor unit 10 is provided with an air supply device 6 for circulating air supply to the electrical equipment.

[0024] In the present invention, the outdoor unit 1 for refrigeration is connected to the indoor unit 10 for providing cold air. The indoor unit 10 promotes the rapid flow of cold air by blowing air to exchange heat around the electrical equipment to cool the electrical equipment. At the same time, the air supply device 6 can recycle the used cold air in the indoor unit 10. Since the used cold air has a certain humidity and is relatively cool and clean compared to the outside air, recycling the cold air can save energy and reduce Stains from electrical equipment.

[0025] Specifically, the air supply device 6 and the outdoor unit 1 are both provided with quick-plug connectors 11 and are connected through a refrigeration pipe 5 with quick-plug connectors 11 at both ends. The upper part of the air supply device 6 is provided with an air outlet 13 for providing cold air and an air inlet 14 for reusing the cold air after cooling down the electrical equipment.

[0026] That is, the outdoor unit 1 transports the refrigerant to the air supply device 6 through the refrigeration pipe 5, and then the air supply device 6 quickly flows cold air to cool the electrical equipment by blowing air. The air supply device 6 and the quick plug connector 11 of the outdoor unit 1 can realize external quick plug installation and maintenance, especially when the equipment fails or the air conditioner stops supplying cold air to replace or maintain the equipment or air conditioner. Failure to replace or maintain equipment or air conditioners in time makes the electrical equipment in the data center overheated and downtime. More preferably, the quick-plug connector 11 of the air supply device 6 can be arranged on the side of the air inlet 14 and placed at the rear of the indoor unit 10 (ie, the bottom side of the rear door 16 of the air conditioning cabinet 2). At the same time, in order to shorten the air supply distance, the air outlet 13 and the air inlet 14 can be placed on both sides of the indoor unit 10 to ensure that the cold air can flow from one side of the electrical equipment to the other, thereby completing the cooling of the electrical equipment.

[0027] Further, please refer to figure 2 As shown, the air inlet 14 is fixedly provided with a filter mesh 12 for filtering air. It ensures the supply of clean cold air to the electrical equipment of the data center, and avoids the aging of the electrical equipment due to the long-term use of air conditioning to cool the electrical equipment.

[0028] Furthermore, the indoor unit 10 further includes an air-conditioning cabinet 2 for placing electrical equipment, and the air supply device 6 is located at the bottom of the air-conditioning cabinet 2, which may be preferably provided on one side of the air supply device 6 An air conditioner fixing frame 15 fixes the air supply device 6 in the indoor unit 10. The air-conditioning cabinet 2 is a rack-type air-conditioning cabinet 2, and the upper part of the air-conditioning cabinet 2 is provided with at least one emergency exhaust skylight 9 for emergency cooling of electrical equipment.

[0029] The rack-mounted air-conditioning cabinet 2 is convenient to place the electrical equipment of the data center, and the electrical equipment is placed layer by layer, which is conducive to the cooling of different electrical equipment by the cold air of the air-conditioning. The air supply device 6 is placed at the bottom of the air-conditioning cabinet 2 to supply cold air from the bottom of the air-conditioning cabinet 2 to the top of the air-conditioning cabinet 2. As a priority, a front door 8 and a rear door 16 are provided on both sides of the air-conditioning cabinet 2, and the inner side of the front door 8 and the rear door 16 are correspondingly provided to seal the free position of the air-conditioning cabinet 2 and respectively communicate with the front door. 8 and the rear door 16 form a blind plate 3 of the cold air passage 17 and the hot air passage 18. The air outlet 13 of the air supply device 6 is placed at the bottom of the cold air channel 17, and the air inlet 14 of the air supply device 6 is placed at the bottom of the hot air channel 18. For details, please refer to image 3 As shown, the cold air discharged from the air outlet 13 of the air supply device 6 flows to the top of the air-conditioning cabinet 2 through the cold air passage 17, and on the way, the cold air flows to the middle of the air-conditioning cabinet 2 through the electrical equipment of the data center to accurately cool the electrical equipment. Ensure that every electrical device is cooled down. The cold air flows to the hot air passage 18 through the electrical equipment, and then the hot air in the hot air passage 18 flows to the air inlet 14 of the air supply device 6 and enters the air supply device 6 again for recycling. The present invention enables the accurate air supply of the cold air of the air conditioner, shortens the air supply distance, reduces additional energy loss, does not damage the humidity balance in the cabinet, makes most applications do not need humidification or dehumidification, and reduces energy waste.

[0030] See image 3 As shown, the emergency exhaust device provided on the top of the air conditioning cabinet 2 and the cold air passage 17, the air supply device 6, and the hot air passage 18 form a sealed emergency air supply system. When the outdoor unit 1 of the air conditioner fails or the mains power fails, the emergency exhaust skylight 9 will automatically open, and the air supply device 6 will introduce the cold air from the outside of the air conditioner cabinet 2 into the indoor unit 10 to provide electrical equipment in the air conditioner cabinet 2. The temperature is lowered, and then the hot air in the indoor unit 10 is discharged through the air supply device 6. The emergency air supply system can still ensure the normal operation of electrical equipment during the failure period and extend the maintenance time of the data center.

[0031] In order to ensure the normal operation of the air conditioner after the mains power failure, the indoor unit 10 is also provided with a battery pack 7 for emergency power supply connected to the air supply device 6. The built-in fan of the air supply device 6 is powered by an uninterrupted power supply. When the external mains power is cut off, it is powered by the battery pack 7, and the uninterrupted power supply is inverted into AC power to continue to supply power to ensure the normal operation of the data center and ensure the cabinet-type data center The electrical equipment will not over-temperature downtime.

[0032] Preferably, the air-conditioning electric control box 4 used to control the rack-mounted air conditioner is fixed in the indoor unit 10 through guide rails, so that the air-conditioning electric control box 4 does not occupy the U space of the electrical equipment, and can realize rapid pushing and pulling and maintain.

[0033] As another specific embodiment of the present invention, at least one outdoor unit 1 and at least one indoor unit 10 may be combined to form a rack-mounted air conditioner for a cabinet-type data center. That is to say, two or more outdoor units 1 can be used to supply cold air to a large indoor unit 10 formed by connecting two or more indoor units 10, so as to quickly cool down the electrical equipment of multiple data centers to ensure Electrical equipment runs efficiently and can achieve energy-saving effects.

[0034] During the implementation of the present invention, the outdoor unit 1 transports refrigerant to the indoor unit 10 through the refrigeration pipe 5, and produces cold air in the indoor unit 10. The air supply device 6 uses a built-in blower to make the cold air enter the cold air passage from the door. The aisle is located on one side of the electrical equipment of the data center, the hot air aisle 18 is located on the other side of the electrical equipment, and the air inlet 14 of the air supply device 6 is in a suction state, so the air pressure flow is formed on both sides of the electrical equipment to encourage the cold air to surround the electrical equipment of the data center And the temperature is reduced, so that the indoor unit 10 forms a cooling system with circulating air supply. At the same time, in order to prevent accidents, a battery pack 7 and an emergency exhaust skylight 9 are added, as described in the above-mentioned embodiment.

[0035] The invention realizes the precise air supply of cold air of the air conditioner, shortens the air supply distance, and reduces the additional energy loss; and the sealed air-conditioning system can set a higher air-conditioning air supply temperature, which greatly improves the cooling efficiency of the air-conditioning system; The supply air temperature higher than the dew point of the air in the cabinet will not disrupt the humidity balance in the cabinet, so that most applications do not require humidification or dehumidification, reducing energy waste.

[0036] It should be understood that the application of the present invention is not limited to the above examples, and those of ordinary skill in the art can make improvements or changes based on the above description. For example, all these improvements and changes should be protected by the appended claims of the present invention. range.