KR101375674B1 - Air conditioning method using an uninterruptible power supply and air conditioner thereof - Google Patents

Abstract

The present invention relates to a method for air conditioning using an uninterruptible power supply and the air conditioner of the same. The smart rack of the air conditioner is supplied with power from the blackout UPS of a prevailing power supply, and stops the cooling motion which provides a cooled air into the smart rack. According to the temperature inside the smart rack, the fan output for cooling is controlled, and, when the temperature inside the smart rack reaches a predetermined value, the door of the smart rack is opened. Thereby, when a blackout occurs and a limited source of power, stored in the UPS is used to supply power into the smart rack, the power consumed in the air conditioner is minimized, and the power for operating equipment built in the smart rack can be supplied. [Reference numerals] (AA) Start; (BB) End; (S1) Supply the power from commercial power; (S2) Power outage occurs; (S3) Supply the power from UPS; (S4) Determine the residual power of the UPS; (S5) Stop the cooling motion; (S6) Control the fan output according to the temperature; (S7) Temperature reaches a predetermined value?; (S8) Open a door of a smart rack; (S9) Transmit or output door opening information

Description

Air conditioning method of smart rack using uninterruptible power supply and its air conditioner {Air conditioning method using an uninterruptible power supply and air conditioner

The present invention relates to an air conditioning technology, and more particularly, to enable equipment such as a server mounted in a rack to operate smoothly using a power supply of a limited uninterruptible power supply (UPS) even in a power failure situation of commercial power. The present invention relates to an air conditioning method of a smart rack using an uninterruptible power supply that automatically adjusts a situation, and an air conditioner thereof.

In general, companies and research institutes include server racks on which servers, repeaters, exchangers, and various network equipment are mounted. In addition, while equipment such as a server mounted in a server rack operates smoothly at a certain temperature range, there is a risk that the lifespan or malfunction of the equipment itself will occur if the temperature is too high or too low. Various server racks are provided with an air conditioner for temperature control of the internal equipment.

In addition, the server rack must provide a stable power supply for smooth operation of the equipment mounted therein, the UPS (Uninterruptible power supply) is located in the computer room where the server rack is located. If a utility power outage occurs, the server rack is powered by this UPS. The equipment and air conditioners in the server rack all require power for operation, while the amount of power stored in the UPS is limited. There is a need for a method for efficiently using a power source so that equipment mounted in a smart rack operates smoothly.

Japanese Laid-Open Patent Publication No. 2010-203745 "Control means and control method of an air conditioner with UPS" (published Sep. 16, 2010)

An object of the present invention for solving the above problems, when the power supply using the UPS in the power failure situation of commercial power supply, by limiting the temperature rise inside the smart rack with a limited power supply, to prevent damage to the mounted equipment It is to provide a smart rack air conditioning method and an air conditioner using an uninterruptible power supply that can support smooth operation.

The air conditioning method of the smart rack using the uninterruptible power supply of the present invention for achieving the above object, the air supply of the smart rack supply step in which power is supplied from an uninterruptible power supply (UPS) in the event of a power failure of the commercial power, the A stop step of stopping the cooling operation for supplying cold air into the smart rack through a cooling cycle, the air conditioner adjusts the output of the fan for cooling the inside of the smart rack according to the temperature inside the smart rack Adjusting step, characterized in that the air conditioner comprises the opening step of opening the door of the smart rack as the temperature inside the smart rack reaches a certain value.

In the air conditioning method of the smart rack using the uninterruptible power supply of the present invention, the stopping step is characterized in that the air conditioner stops the cooling operation when the amount of power remaining of the UPS is less than a predetermined value.

In the air conditioning method of the smart rack using the uninterruptible power supply of the present invention, the stopping step, the air conditioner accumulates the amount of power supplied from the UPS to the load, the ratio of the remaining amount of power of the UPS to the maximum amount of power If the predetermined value or less, or the absolute value of the residual amount of power of the UPS is a predetermined value or less characterized in that the cooling operation is stopped.

In the air conditioning method of the smart rack using the uninterruptible power supply of the present invention, the stopping step, the air conditioner accumulates the amount of power supplied from the UPS to the load, the air conditioner is mounted on the smart rack When the amount of power remaining of the UPS relative to the amount of power consumption of less than a predetermined value characterized in that the cooling operation is stopped.

In the air conditioning method of the smart rack using the uninterruptible power supply of the present invention, the stopping step, the air conditioner detects how many frames of the plurality of frames located inside the smart rack, the smart rack It is characterized by calculating the power consumption of the entire equipment mounted on the.

In the air conditioning method of the smart rack using the uninterruptible power supply of the present invention, the stopping step is characterized in that the air conditioner detects the equipment mounted on the frame using a pressure sensor or an infrared sensor.

In the air conditioning method of the smart rack using the uninterruptible power supply of the present invention, the adjusting step, the air suction fan for supplying the outside air into the smart rack or the air exhaust fan for discharging the air inside the smart rack to the outside It characterized in that to adjust the output of.

In the air conditioning method of the smart rack using the uninterruptible power supply of the present invention, the adjusting step is characterized in that the air conditioner gradually increases the output of the fan as the temperature inside the smart rack increases.

In the air conditioning method of the smart rack using the uninterruptible power supply of the present invention, the opening step, the door of the smart rack when the temperature inside the smart rack measured by the air conditioner maintains a predetermined value or more for a predetermined time or more It characterized in that the opening.

In the air conditioning method of the smart rack using the uninterruptible power supply of the present invention, in the opening step, the air conditioner transmits information related to the opening of the door of the smart rack to an external management terminal through wired communication or wireless communication. Or output using a screen, a lamp or a speaker.

In the air conditioning method of the smart rack using the uninterruptible power supply of the present invention, the air conditioner is characterized in that it further comprises the step of receiving power from the commercial power source instead of the UPS when the power outage is terminated.

The present invention provides a computer-readable recording medium recording a program for performing the above air conditioning method.

The air conditioner of the smart rack using the uninterruptible power supply of the present invention for achieving the above object, the power supply unit is supplied with power from a commercial power source or a UPS, a temperature measuring unit for measuring the temperature inside the smart rack, through a cooling cycle Cooling unit for cooling the inside of the smart rack to perform a cooling operation, a fan for cooling the inside of the smart rack, so that the power supply unit receives power from the UPS in the case of power failure of the commercial power, the cooling unit stops the cooling operation Adjust the fan output according to the temperature inside the smart rack measured by the temperature measuring unit, and as the temperature inside the smart rack measured by the temperature measuring unit reaches a predetermined value, And a control unit for opening the door.

In the air conditioner of the smart rack using the uninterruptible power supply of the present invention, the control unit is characterized in that the cooling unit to stop the cooling operation when the amount of power remaining of the UPS is below a certain value.

In the air conditioner of the smart rack using the uninterruptible power supply of the present invention, the control unit detects the amount of power supplied to the load from the UPS, the ratio of the remaining amount of power of the UPS is equal to or less than the maximum amount of power, or When the absolute value of the remaining amount of power of the UPS is less than a predetermined value it characterized in that the cooling unit to stop the cooling operation.

In the air conditioner of the smart rack using the uninterruptible power supply of the present invention, the control unit detects the amount of power supplied to the load from the UPS, the amount of power remaining of the UPS compared to the power consumption of the equipment mounted in the smart rack If the predetermined value or less, characterized in that the cooling unit to stop the cooling operation.

In the air conditioner of the smart rack using the uninterruptible power supply of the present invention, the smart rack is provided with a plurality of frames for mounting the equipment therein, the control unit, the equipment is mounted on a number of frames of the plurality of frames. It is detected whether the power consumption of the entire equipment mounted on the smart rack, characterized in that to calculate.

In the air conditioner of the smart rack using the uninterruptible power supply of the present invention, further comprising a sensor unit for detecting the equipment mounted on the frame, the control unit, the frame using the pressure sensor or infrared sensor included in the sensor unit It is characterized by detecting the equipment mounted on.

In the air conditioner of the smart rack using the uninterruptible power supply of the present invention, the control unit, the output of the air suction fan for supplying the outside air into the smart rack or the air discharge fan for discharging the air inside the smart rack to the outside It characterized in that to adjust.

In the air conditioner of the smart rack using the uninterruptible power supply of the present invention, the control unit, characterized in that to gradually increase the output of the fan as the temperature inside the smart rack measured by the temperature measuring unit increases. .

In the air conditioner of the smart rack using the uninterruptible power supply of the present invention, the control unit, when the temperature inside the smart rack measured by the temperature measuring unit maintains a predetermined value or more for a predetermined time or more the door of the smart rack. It is characterized by opening.

In the air conditioner of the smart rack using the uninterruptible power supply of the present invention, further comprising a communication unit for transmitting and receiving information via wired or wireless communication or an expression unit for representing the information, the control unit, the door opening of the smart rack The information related to the control may be controlled to be transmitted to an external management terminal through the communication unit or to be output using a screen, a lamp, or a speaker of the expression unit.

In the air conditioner of the smart rack using the uninterruptible power supply of the present invention, the control unit is characterized in that the power supply unit receives power from the commercial power as the power failure situation is terminated.

According to the air conditioning method of the smart rack using the uninterruptible power supply of the present invention and the air conditioner, the following effects can be expected.

First, when supplying power to the smart rack using the limited power stored in the UPS in the event of power failure, power is supplied to the equipment mounted in the smart rack while performing cooling operation by minimizing the power consumed by the air conditioner. You can do that.

Second, if the air conditioner is cooling the inside of the smart rack using the minimum power, and the temperature reaches a certain level and there is concern about damage to the mounted equipment, open the door of the smart rack to force it. By allowing furnace cooling to take place, damage to the mounted equipment can be minimized.

Third, when the door is opened due to a high temperature inside the smart rack, the administrator may be notified of the fact to the terminal of the administrator, or the administrator may recognize visually or audibly, so that proper follow-up may be made.

1 is a perspective view schematically showing the appearance of a smart rack according to an embodiment of the present invention.
2 is a cross-sectional view schematically showing the configuration of an air conditioner located in a smart rack according to an embodiment of the present invention.
3 is a block diagram showing the configuration of an air conditioner according to an embodiment of the present invention.
4 is a flowchart illustrating an air conditioning method according to an embodiment of the present invention.

In the following description, only parts necessary for understanding the embodiments of the present invention will be described, and the description of other parts will be omitted so as not to obscure the gist of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor is not limited to the meaning of the terms in order to describe his invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely preferred embodiments of the present invention, and are not intended to represent all of the technical ideas of the present invention, so that various equivalents And variations are possible.

The present invention relates to an air conditioning technology that performs a cooling operation by using a UPS so that equipment mounted in a smart rack during a power failure of a commercial power source may operate smoothly. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view schematically showing a state of a smart rack 1 according to an embodiment of the present invention, Figure 2 is a schematic view of the configuration of an air conditioner located in the smart rack (1) according to an embodiment of the present invention 3 is a block diagram showing the configuration of an air conditioner 100 according to an embodiment of the present invention. 1 to 3 are only examples of the embodiments referred to for description of the present invention, and depending on the embodiment, the shape, structure, configuration of the air conditioner 100 and the position of each configuration of the smart rack 1 Can be changed.

1 to 3, in FIG. 1, the smart rack 1 includes various equipment 4 such as a server, a repeater, a switch, and network equipment. At this time, the equipment (4) is mounted on the smart rack (1) using a frame 9 of the 'b' shape attached to the inner side wall of the smart rack (1). However, the shape of the frame 9 used to mount the equipment 4 to the smart rack 1 may vary depending on the embodiment.

And the smart rack (1) has a door (2) that opens and closes to mount the equipment (4) on the front, the door (2) is attached to the side wall of the smart rack (1) using a hinge (3) do.

In addition, a case 5 for arranging each component of the air conditioner 100 is located at the lower end of the smart rack 1, and cool air for cooling air is discharged from the inside of the case 5 at the upper end of the case 5. An air discharge port 6 is formed.

In the case 5 at the bottom of the smart rack 1 shown in FIG. 2, the power supply unit 10, the cooling unit 30, and the control unit 80 of each component of the air conditioner 100 are located, and the case 5 ) May also be located other components of the air conditioner (100).

In addition, in the embodiment shown in FIG. 3, the air conditioner 100 includes a power supply unit 10, a temperature measuring unit 20, a cooling unit 30, a sensor unit 40, a fan 50, a communication unit 60, Including the expression unit 70 and the control unit 80, wherein each configuration of the air conditioner 100 is located in the case 5 of the bottom of the smart rack (1) shown in Figs. It may be located at each place outside the case 5.

In addition, the bottom of the case 5 has air for discharging the high-temperature air that has been heat-exchanged with the air inlet 7 and the condenser 33 to which the outside air flows in order to cool the condenser 33 of the cooling unit 30. The outlet 8 is located. In addition, an air intake fan 51 for supplying outside air into the smart rack 1 is located at the upper end of the air inlet 7, and the air inside the smart rack 1 is outside at the side wall of the top of the smart rack 1. The air discharge fan 52 for discharging is located.

The power supply unit 10 receives power from the commercial power source 11 or the uninterruptible power supply (UPS) 12 and provides power for the operation of the air conditioner 100.

The UPS 12 is a device that supplies stable AC power of high quality by overcoming a power failure that may occur in the commercial power source 11, and restricts the case where the voltage of the electric circuit is cut off, suddenly rises or falls suddenly. To lose.

In the present embodiment, when an abnormality occurs in the power supply state of the commercial power supply 11, such as at the time of power failure, the power supply unit 10 receives power from the UPS 12 instead of the commercial power supply 11, Provide operating power. At this time, a voltage / current sensor 13 is positioned between the UPS 12 and the air conditioner 100. The voltage / current sensor 13 detects the amount of power supplied from the UPS 12 to the load, and at this time, the load is mounted on the smart rack 1 as well as the air conditioner 100 to receive power. It may include equipment (4).

Temperature measuring unit 20 serves to measure the temperature inside the smart rack (1). To this end, the temperature measuring unit 20 may be, for example, a liquid thermometer that determines temperature by measuring a pressure change according to thermal expansion or temperature, a thermometer using a bimetal, and an electrical that determines temperature by measuring an electrical quantity that changes with temperature. Thermometers and the like.

The cooling unit 30 supplies cooling air into the smart rack 1 through a cooling cycle to perform a cooling operation. At this time, the cooling unit 30 is an evaporator 31 for absorbing the external heat while the encapsulated refrigerant evaporates, the compressor 32 for compressing the evaporated or expanded refrigerant, and the compressed refrigerant condensed It may include a condenser 33 for dissipating heat to the outside, and an expansion valve 34 for expanding and supplying the condensed refrigerant to the evaporator 31.

The sensor unit 40 serves to detect the equipment 4 mounted on the frame 9. For example, the sensor unit 40 is a pressure sensor that detects whether the equipment 4 is mounted on the frame 9 according to the load of the equipment 4, and detects or emits infrared rays of the equipment mounted on the frame 9. It may include an infrared sensor for detecting whether the equipment 4 is mounted on the frame 9 according to the wavelength or phase change of the infrared light. In this case, the pressure sensor may be located at a portion of the frame 9 to which the load of equipment is applied, and the infrared sensor may be located at the frame 9, the inner wall of the smart rack 1, the door 2, or the like.

The fan 50 serves to form a flow of air for cooling the interior of the smart rack (1). In this embodiment, the fan 50 is an air suction fan 51 for supplying outside air to the inside of the smart rack 1 through the air inlet 7 and the air exhaust to discharge the air inside the smart rack 1 to the outside. And a fan 52. At this time, the air suction fan 51 or the air discharge fan 52 may be implemented using a blower fan of various structures for forcibly circulating the air in the smart rack (1).

The communication unit 60 serves to transmit and receive information through wired communication or wireless communication, and may include a communication interface for transmitting data through various communication networks.

The expression unit 70 serves to visually or audibly output various information related to the smart rack 1, a screen such as an LCD (Liquid Crystal Display), a lamp such as a warning light, a speaker for sound output, and the like. It may include.

The controller 80 includes an air conditioner including a power supply unit 10, a temperature measuring unit 20, a cooling unit 30, a sensor unit 40, a fan 50, a communication unit 60, and a representation unit 70 ( It controls the overall operation of the 100), and includes a calculation unit, memory, application program storage for this.

The controller 80 controls the cooling unit 30 by using the power supplied from the power supply unit 10 so that the cooling operation is performed inside the smart rack 1, and controls the fan 50 to control the smart rack 1. Allow the air inside to circulate.

The power supply unit 10 provides power for the operation of the air conditioner 100 by using the power supplied from the commercial power supply 11 at normal times. If an abnormal situation such as a power failure of the commercial power supply 11 occurs, the UPS 12 ) Is powered by

In this case, the UPS 12 is intended to accumulate a limited amount of electrical energy, while the equipment 4 mounted in the smart rack 1 must be supplied with power for its operation without interruption. In addition, while the equipment 4 mounted on the smart rack 1 generates heat during operation, when the temperature is too low or high, a malfunction may occur, and furthermore, cooling of the equipment is required.

Accordingly, the air conditioner 100 provided in the smart rack 1 performs a cooling operation to maintain a predetermined temperature range for smooth operation of the equipment 4 mounted in the smart rack 1, the UPS 12 Since the limited power of) must be used, it ensures maximum power for the operation of the equipment 4 and minimizes power consumption for the cooling operation to maintain the temperature conditions for the operation of the equipment 4. It is necessary.

The controller 80 controls the power supply unit 10 to receive power from the UPS 12 when the commercial power supply 11 loses power, in which the cooling unit 30 supplies cooling air into the smart rack 1. To stop it. This is because most of the power consumed by the air conditioner 100 is consumed by the cooling unit 30 discharging the cool air according to the cooling cycle, and the electrical energy of the UPS 12 is stopped by stopping the cooling operation of the cooling unit 30. May be prevented from being rapidly consumed, and power for the operation of the equipment 4 mounted in the smart rack 1 may be secured.

In this case, the controller 80 may determine the amount of remaining power of the UPS 12 to allow the cooling unit 30 to stop the cooling operation only when the determined amount of remaining power is equal to or less than a predetermined value.

In the present embodiment, the voltage / current sensor 13 is positioned between the UPS 12 and the air conditioner 100, and at this time, the voltage / current sensor 13 detects the amount of power supplied from the UPS 12 to the load. The controller 80 accumulates and detects the amount of power supplied from the UPS 12 to the load by using the voltage / current sensor 13. In this case, the controller 80 may determine that the ratio of the amount of remaining power of the UPS 12 is equal to or less than a predetermined value relative to the maximum amount of power, or that the absolute value of the amount of remaining power of the UPS 12 is constant according to the power supply from the UPS 12. In the following case, the cooling unit 30 may be controlled to stop the cooling operation.

In addition, the controller 80 detects the amount of power supplied from the UPS 12 to the load by using the voltage / current sensor 13, and compares the amount of power consumption of the equipment 4 mounted in the smart rack 1 with the UPS 12. If the amount of power remaining below a predetermined value, the cooling unit 30 may be controlled to stop the cooling operation. In this case, the controller 80 may detect whether the equipment 4 is mounted in each of the plurality of frames 9, and calculate the amount of power consumption of the entire equipment mounted in the smart rack 1. For example, when the power consumption of a single server mounted on the frame 9 of the smart rack 1 is 500W, the number of servers mounted on the frame 9 and the power consumption are multiplied and mounted on the smart rack 1. The power consumption of the entire equipment 4 can be obtained. In this case, the controller 80 may detect whether the equipment 4 is mounted on each of the plurality of frames 9 by using the pressure sensor or the infrared sensor of the sensor unit 40.

In this manner, the control unit 80 which stops the cooling operation of the cooling unit 30 adjusts the output of the fan 50 according to the temperature of the smart rack 1 measured by the temperature measuring unit 20 to operate the cooling operation. Do this.

The fan 50 generates a flow of air inside the smart rack 1, and the air is introduced into the outside using the air suction fan 51, and the air is discharged to the outside using the air discharge fan 52. . As such, the air converted into high temperature in the smart rack 1 is discharged to the outside, thereby cooling the equipment 4 mounted in the smart rack 1. At this time, the controller 80 may adjust the output of each of the air suction fan 51 or the air discharge fan 52, the fan as the temperature inside the smart rack (1) measured by the temperature measuring unit 20 rises The cooling efficiency can be increased by gradually increasing the output of the 50.

As such, the controller 80 uses both a cooling unit 30 having a relatively large amount of power consumption and a relatively high cooling efficiency, and a fan 50 having a relatively small amount of power consumption and a relatively low cooling efficiency. 1) When the internal cooling operation is performed, the cooling unit 30 performs the cooling operation inside the smart rack 1 only when it is determined that the amount of remaining power of the UPS 12 is large. Cooling operation may be performed using only) so that the cooling is adaptively performed according to the amount of power of the UPS 12.

Thereafter, when the temperature inside the smart rack 1 measured by the temperature measuring unit 20 reaches a predetermined value, the controller 80 controls the door 2 of the smart rack 1 to be opened.

That is, the control unit 80 may open the door of the smart rack 1 when the temperature inside the smart rack 1 rises by a predetermined value even while performing the cooling operation inside the smart rack 1 using the fan 50. By controlling (2) to open, cooling air is performed by allowing external air to flow into the smart rack (1). When the door 2 of the smart rack 1 is opened, cooling is performed as the outside air enters the inside to prevent further temperature rise, and the equipment 4 mounted in the smart rack 1 malfunctions due to high temperature. It can prevent damage.

In this case, the controller 80 controls the door 2 of the smart rack 1 to be opened by checking whether the temperature inside the smart rack 1 measured by the temperature measuring unit 20 maintains a predetermined value or more for a predetermined time. can do.

In addition, the controller 80 may control the information related to the opening of the door 2 of the smart rack 1 to be transmitted to the external management terminal through the communication unit 60. In this case, the controller 80 may transmit information related to the opening of the door 2 to a terminal, a computer, a smart phone, etc., for example, to manage the constant temperature of the smart rack 1, and the information may be a web browser, It is output as a text message, a management app (app), etc. can be confirmed by the administrator, and as a result, appropriate follow-up with respect to the temperature of the smart rack (1) can be taken.

In addition, the controller 80 may control the information related to the opening of the door 2 of the smart rack 1 to be output through a screen, a lamp, a speaker, etc. of the expression unit 70, and visually or auditoryly recognized. One manager can take appropriate follow-up.

When the commercial power source 11 returns to the normal operation state, such as when the power failure is terminated, the controller 80 may control the power supply unit 10 to receive power from the commercial power source 11, in which case the cooling unit ( The cooling operation of 30 may be resumed to allow the cool air to be supplied into the smart rack 1.

The air conditioner 100 according to the present invention will be described with reference to Figure 4 for the process of conditioning the air inside the smart rack (1).

4 is a flowchart illustrating an air conditioning method according to an embodiment of the present invention.

Referring to FIG. 4, an air conditioner provided in a smart rack including a server or various network equipment receives power from a commercial power source to perform a cooling function inside the smart rack (S1).

In operation S1, the air conditioner configures a cooling cycle to supply cold air into the smart rack or forms an air flow in the smart rack using a fan to perform a cooling operation.

The air conditioner continuously checks whether a power failure occurs (S2), and if the power failure does not occur, continues operation using commercial power, and when the power failure occurs, power is supplied from a UPS to perform an operation (S3).

At this time, the air conditioner determines the amount of power remaining in the UPS (S4), and when the determination indicates that the amount of power remaining in the UPS is below a predetermined value, the cooling operation is stopped (S5).

In an embodiment of the present invention, the air conditioner of step S4 detects the amount of power supplied from the UPS to the load by using a voltage / current sensor, so that the ratio of the remaining amount of power of the UPS is determined to be equal to or less than the maximum amount of power, or If it is determined that the absolute value of the remaining amount of power of the UPS is less than a predetermined value, it is possible to stop the cooling operation in step (S5).

In another embodiment of the present invention, the air conditioner of step S4 detects the amount of power supplied from the UPS to the load by using a voltage / current sensor, so that the remaining amount of power of the UPS is compared with the amount of power consumed by the equipment mounted in the smart rack. If it is determined that the predetermined value or less, the cooling operation can be stopped in step S5. In this case, the air conditioner of step S4 detects how many frames are mounted in the smart rack and calculates the power consumption of the entire equipment mounted in the smart rack, wherein the air conditioner is a pressure sensor. Alternatively, an infrared sensor can be used to detect the equipment mounted on the frame.

In another embodiment of the present invention, the power amount determination process may be omitted in step S4, and the air conditioner may stop the cooling operation in step S5 as soon as power is supplied from the UPS in step S3. have.

In this way, the air conditioner of the present embodiment prevents the electrical energy of the UPS from being rapidly consumed by stopping the cooling operation, and secures power for the operation of the equipment mounted in the smart rack.

And the air conditioner adjusts the output of the fan according to the temperature inside the smart rack to perform the cooling operation for the interior of the smart rack (S6).

The fan that the air conditioner adjusts the output in step (S6) may include an air suction fan for introducing the outside air into the smart rack, or an air discharge fan for discharging the air inside the smart rack to the outside, wherein The air conditioner can increase cooling efficiency by gradually increasing fan output as the temperature inside the smart rack increases.

In this way, the air conditioner uses a cooling operation using a cooling cycle with a relatively high power consumption and a relatively high cooling efficiency, and a cooling operation using both a fan with a relatively low power consumption and a relatively low cooling efficiency. By performing a constant temperature function inside the smart rack, but only if it is determined that the amount of power remaining in the UPS is large, by discharging the cool air to perform the cooling operation inside the smart rack, otherwise the cooling operation only by using a fan, UPS According to the amount of power can be adaptive cooling.

Since the air conditioner when the temperature inside the smart rack reaches a certain value, the door of the smart rack is forcibly opened (S8).

That is, the air conditioner of step S8 controls the door of the smart rack to open when the temperature inside the smart rack rises by a predetermined value even while performing the cooling operation inside the smart rack by using the fan, so that the outside air is Cooling operation is performed by being introduced into the smart rack. When the door of the smart rack is opened, cooling is performed as the outside air enters the inside to prevent further temperature rise, and the equipment mounted in the smart rack can be prevented from malfunctioning or being damaged by the high temperature. In this case, the air conditioner may open the door of the smart rack by checking whether the temperature inside the smart rack maintains a predetermined value or more for a predetermined time.

Thereafter, the air conditioner transmits the information related to the door opening of the smart rack to an external management terminal or outputs it through a screen, a lamp, a speaker, and the like, so that the administrator can confirm it (S9).

In addition, the air conditioner may receive power from the commercial power supply, not the UPS, and perform air conditioning when the commercial power is restored from a power failure.

The air conditioning method according to an embodiment of the present invention may be implemented in a program form readable by various computer means and recorded on a computer readable recording medium.

On the other hand, the embodiments disclosed in the specification and drawings are merely presented specific examples to aid understanding, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein. Furthermore, although specific terms are used in this specification and the drawings, they are used in a generic sense only to facilitate the description of the invention and to facilitate understanding of the invention, and are not intended to limit the scope of the invention.

1: smart rack 2: door
3: hinge 4: equipment
5: case 6: air outlet
7: air intake port 8: air outlet port
9: frame 10: power supply
11: commercial power 12: UPS
13: voltage / current sensor 20: temperature measuring part
30: cooling unit 31: evaporator
32: compressor 33: condenser
34: expansion valve 40: sensor
50: fan 51: air suction fan
52: air discharge fan 60: communication unit
70: expression unit 80: control unit
100: air conditioner

Claims (23)

A supply stage in which the air conditioner of the smart rack is supplied with power from an uninterruptible power supply (UPS) in case of a power failure of commercial power;
Stopping the cooling operation of the air conditioner supplying cool air into the smart rack through a cooling cycle;
Adjusting an output of a fan for cooling the inside of the smart rack according to the temperature of the air conditioner;
Opening the door of the smart rack as the air conditioner reaches a predetermined temperature in the smart rack;
Air conditioning method of the smart rack using an uninterruptible power supply, characterized in that it comprises a. The method of claim 1,
The stopping step,
The air conditioner of the smart rack using an uninterruptible power supply, characterized in that the air conditioner stops the cooling operation when the amount of power remaining of the UPS is less than a predetermined value. 3. The method of claim 2,
The stopping step,
The air conditioner accumulates the amount of power supplied from the UPS to the load, and stops the cooling operation when the ratio of the amount of remaining power of the UPS is less than or equal to the maximum amount of power or the absolute value of the amount of remaining power of the UPS is less than or equal to the predetermined value. Air conditioning method of a smart rack using an uninterruptible power supply, characterized in that. 3. The method of claim 2,
The stopping step,
The air conditioner accumulates the amount of power supplied from the UPS to the load, and the air conditioner stops the cooling operation when the amount of power remaining of the UPS is less than a predetermined value compared to the power consumption of the equipment mounted in the smart rack. Smart rack air conditioning method using an uninterruptible power supply. 5. The method of claim 4,
The stopping step,
The air conditioner detects how many frames of the plurality of frames located inside the smart rack, and calculates the amount of power consumption of the entire equipment mounted on the smart rack smart rack using an uninterruptible power supply Air conditioning method. 6. The method of claim 5,
The stopping step,
The air conditioner of the smart rack using the uninterruptible power supply, characterized in that the air conditioner detects the equipment mounted on the frame using a pressure sensor or an infrared sensor. The method of claim 1,
Wherein the adjusting comprises:
The air conditioning method of the smart rack using an uninterruptible power supply, characterized in that for controlling the output of the air suction fan for supplying the outside air into the smart rack or the air discharge fan for discharging the air inside the smart rack to the outside. The method of claim 1,
Wherein the adjusting comprises:
The air conditioner of the smart rack using the uninterruptible power supply, characterized in that the air conditioner gradually increases the output of the fan as the temperature inside the smart rack increases. The method of claim 1,
The opening step,
The air conditioning method of the smart rack using the uninterruptible power supply, characterized in that for opening the door of the smart rack when the temperature inside the smart rack measured by the air conditioner maintains a predetermined value or more for a predetermined time or more. The method of claim 1,
The opening step,
Smart using the uninterruptible power supply, characterized in that the air conditioner transmits the information related to the door opening of the smart rack to the external management terminal through a wired or wireless communication, or by using a screen, a lamp or a speaker Air conditioning method of the rack. The method of claim 1,
The air conditioner receiving power from the commercial power source instead of the UPS as the power failure situation ends;
Air conditioning method of the smart rack using the uninterruptible power supply, characterized in that it further comprises. A computer-readable recording medium having recorded thereon a program for performing the method according to any one of claims 1 to 10. A power supply unit receiving electric power from a commercial power source or a UPS;
A temperature measuring unit measuring a temperature inside the smart rack;
A cooling unit configured to supply cooling air into the smart rack through a cooling cycle to perform a cooling operation;
A fan for cooling the inside of the smart rack;
The power supply unit receives power from the UPS when the commercial power outage, the cooling unit to stop the cooling operation, adjust the output of the fan according to the temperature inside the smart rack measured by the temperature measuring unit, A control unit which opens the door of the smart rack as the temperature inside the smart rack measured by the temperature measuring unit reaches a predetermined value;
Smart rack air conditioner using an uninterruptible power supply, characterized in that it comprises a. 14. The method of claim 13,
The control unit,
The air conditioner of the smart rack using an uninterruptible power supply, characterized in that the cooling unit to stop the cooling operation when the amount of power remaining of the UPS is less than a predetermined value. 15. The method of claim 14,
The control unit,
Accumulating the amount of power supplied from the UPS to the load, the cooling unit to stop the cooling operation when the ratio of the remaining amount of power of the UPS is less than a certain value to the maximum amount of power, or the absolute value of the remaining amount of power of the UPS is less than a certain value Smart rack air conditioner using an uninterruptible power supply, characterized in that. 15. The method of claim 14,
The control unit,
Accumulating the amount of power supplied from the UPS to the load, the uninterruptible power supply to the cooling unit to stop the cooling operation when the amount of power remaining of the UPS compared to the power consumption of the equipment mounted in the smart rack is less than a predetermined value. Air conditioner of smart rack using. 17. The method of claim 16,
The smart rack has a plurality of frames for mounting the equipment therein,
The control unit,
The air conditioner of the smart rack using an uninterruptible power supply, characterized in that by detecting how many frames of the plurality of frames the equipment is mounted, the power consumption of the entire equipment mounted in the smart rack. 18. The method of claim 17,
A sensor unit detecting the equipment mounted on the frame;
Further comprising:
The control unit,
Smart rack air conditioner using an uninterruptible power supply, characterized in that for detecting the equipment mounted on the frame using a pressure sensor or an infrared sensor included in the sensor unit. 14. The method of claim 13,
The control unit,
An air conditioner of a smart rack using an uninterruptible power supply, characterized in that for controlling the output of the air suction fan for supplying outside air into the smart rack or the air discharge fan for discharging the air inside the smart rack to the outside. 14. The method of claim 13,
The control unit,
The air conditioner of the smart rack using an uninterruptible power supply, characterized in that the output of the fan is gradually increased as the temperature inside the smart rack measured by the temperature measuring unit increases. 14. The method of claim 13,
The control unit,
The air conditioner of the smart rack using an uninterruptible power supply, characterized in that for opening the door of the smart rack when the temperature inside the smart rack measured by the temperature measuring unit maintains a predetermined value or more for a predetermined time or more. 14. The method of claim 13,
Communication unit for transmitting and receiving information through wired or wireless communication; or
A representation unit for representing information;
Further comprising:
The controller may control the information related to the opening of the door of the smart rack to be transmitted to an external management terminal through the communication unit, or to be output by using a screen, a lamp, or a speaker of the expression unit. Air conditioner of smart rack using. 14. The method of claim 13,
The control unit,
The air conditioner of the smart rack using an uninterruptible power supply, characterized in that the power supply unit receives power from the commercial power supply as the power outage is terminated.

Images