KR20210049466A - Apparatus and Method for Controlling Cooling of Rack - Google Patents

Abstract

According to the present invention, disclosed are a rack cooling control device and a method thereof. The rack cooling control device comprises: a computer equipment rack including at least one accommodation space capable of accommodating computer equipment; a control device generating a control signal for regulating the temperature of the accommodation space; a cooling device capable of controlling the temperature of the accommodation space accommodated in the computer equipment rack; and an outdoor unit. Therefore, management and immediate response can be efficiently provided by individually cooling in accordance with the measured temperature.

Description

Apparatus and Method for Controlling Cooling of Rack

The present invention relates to a cooling control technology, and more particularly, to a cooling control apparatus and method for controlling the temperature of the rack.

In general, a rack refers to an international standard (IEC) box for installation of network equipment, including servers, and computer equipment, and is a rack-mount method that is stacked by floor for the configuration and installation of computer equipment such as servers and hubs. It is manufactured and is called a 19-inch rack or a 21-inch rack depending on the external size of the computer equipment, such as server rack, hub rack, communication rack, network system rack, CCTV rack, and multi-rack, depending on the computer equipment installed.

In addition, according to the functions provided, the airtight rack (a rack that blocks dust inflow), an earthquake-resistant rack (a rack with a vibration prevention function in preparation for an earthquake), EMP shielding force (electromagnetic pulses, waves generated from nuclear weapons are electronic Rack with a function to prevent such damage by causing overcurrent to cause permanent damage), EMC shielding rack (EMC reduces the noise of electronic devices and blocks them so that they do not affect the operation of other electronic devices. Racks with a function to block noise effects from equipment), EMI shielding racks (racks with electromagnetic wave blocking function), vibration-free racks (racks with a function to prevent external physical shaking for ships and vehicles), etc. It is also called as.

In the present invention, the various racks described above are collectively referred to as computer equipment racks.

Servers and computer equipment installed in the computer equipment rack may have fatal consequences such as system shutdown or failure if the heat load due to high integration and high performance is not removed.Therefore, a separate computer room is formed and cooled air through the air conditioning unit inside the rack box. In case the computer room cannot be operated due to problems such as cost and space, a fan for exhaust ventilation is provided inside the rack box to respond to the heat load.

On the other hand, in the cabinet where various information processing devices such as servers are installed, a small blowing fan is installed to save space when the information processing devices are installed. In this case, fatal damage to servers or information processing devices is caused, resulting in economic loss and loss of data information, such as inability to recover.

As described above, one of the main reasons for failure of servers and information processing devices of computer equipment racks is a problem due to overload due to temperature control failure, and in order to solve this problem, a technology for removing heat generated in the rack box as described above is required. Do.

Accordingly, in order to solve the problems of the prior art, an object of the present invention is to measure the temperature of each cabinet and individually cool according to the measured temperature to provide efficient management and immediate response.

However, the object of the present invention is not limited to the above-mentioned matters, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above objects, in the rack cooling control device of the present invention, a computer equipment rack including at least one accommodation space capable of accommodating computing equipment, for controlling the temperature of the accommodation space A control device that generates a control signal, a cooling device that adjusts the temperature of the accommodation space by adjusting the air volume based on the control signal, and a driving rate is determined based on the control signal, and a driving rate of the cooling device is determined based on the driving rate. It may include an outdoor unit that transfers the cooled air by exchanging heat with the heated air.

The computing equipment rack includes a plurality of temperature sensors measuring in real time a suction in which air is sucked into the accommodation space, an outlet through which the air passing through the accommodation space is discharged, and a temperature of the accommodation space and an external temperature of the computing equipment rack in real time. It may include a plurality of dampers forcibly introducing negative and external air to the inlet and forcibly flowing the air discharged through the outlet to the outside.

The computer equipment rack further includes a notification unit for generating a warning signal when it is determined that the cooling device is broken, and an automatic opening/closing device capable of automatically opening and closing a door provided on the front and rear surfaces of the computer equipment rack, and the automatic The opening and closing device may operate simultaneously with the warning signal to allow the external air to flow into the accommodation space.

The temperature sensor unit may include an outside temperature sensor disposed on the outer front of the computer equipment rack to measure the outside temperature, an intake air temperature sensor disposed at the inlet to measure the intake air temperature, and an exhaust air disposed at the outlet to measure the exhaust temperature. It may include a temperature sensor.

The cooling device may include at least one fan for adjusting a temperature of each of the accommodation spaces, and a driving rate of the fan may be determined based on the intake air temperature.

The control device includes a receiving unit receiving the measured temperature data, a calculation unit calculating a target value and a driving rate using the measured temperature data, and generating a control signal based on the target value and the driving rate. It may include a control signal generator.

The calculation unit may calculate a target value using exhaust temperature data and intake air temperature data received from the temperature sensor unit, and the target value may be calculated by a difference between the exhaust temperature data and the intake air temperature data.

The calculation unit may calculate a driving rate of the outdoor unit using at least one intake air temperature data received from the temperature sensor unit, and the driving rate may be calculated using an average of the intake air temperature data.

The control device generates the warning signal when the target value is higher than the first reference temperature, generates a control signal so that the automatic opening/closing device is operated, and if the outside temperature is maintained below the second reference temperature for a preset time, the cooling device fan It is possible to generate a control signal to reduce the driving rate of and activate the damper.

In order to achieve the above objects, in the rack cooling control method according to another embodiment of the present invention, the temperature of the storage space in which the computing equipment is accommodated in the computing equipment rack and the temperature of the outside temperature of the computing equipment rack are measured in real time. Measurement step, a control step of controlling the cooling device and the computer equipment rack by generating a control signal for adjusting the temperature of the accommodation space, a temperature control step of adjusting the temperature of the accommodation space based on the control signal, and the control The driving rate may be determined based on the signal and may include a cooling air delivery step of transferring the cooled air by exchanging heat with the air of the cooling device based on the driving rate.

The temperature measurement step may include an outside temperature measurement step of measuring the outside air temperature by being disposed on the outer front of the computer equipment rack, an intake air temperature measurement step of measuring a temperature where air cooled into the accommodation space is sucked, and the accommodation It may include an exhaust temperature measuring step of measuring a temperature of a place where air in the space is discharged.

The controlling step includes a receiving step of receiving the measured temperature data, a calculation step of calculating a target value and a driving rate using the measured temperature data, and

It may include a control signal generating step of generating a control signal based on the target value and the driving rate.

It may further include adjusting the temperature of the accommodation space using external air based on the control signal.

In order to achieve another object of the present invention, the rack cooling control method of the present invention can provide a storage medium in which a computer-readable program is recorded for execution in a computer.

According to the provision of the rack cooling control apparatus and method of the present invention, the temperature of the accommodation space in which the computing equipment is accommodated can be individually managed so that a problem due to overloading does not occur, and an immediate response can be performed.

Even if it is an effect not explicitly mentioned herein, the effect described in the following specification expected by the technical features of the present invention and the provisional effect thereof are treated as described in the specification of the present invention.

1 is a block diagram showing the components constituting the rack cooling control apparatus according to an embodiment of the present invention.
2 is a block diagram showing the components constituting a computer equipment rack according to an embodiment of the present invention.
3 is a block diagram showing components constituting a temperature sensor unit according to an embodiment of the present invention.
4 is a block diagram showing components constituting a control device according to an embodiment of the present invention.
5 is a flowchart illustrating a rack cooling control method according to another embodiment of the present invention.
6 is a flowchart illustrating a temperature measurement step according to another embodiment of the present invention.
7 is a flowchart illustrating a control step according to another embodiment of the present invention.
8 is a flowchart specifically illustrating a control step according to another embodiment of the present invention.
9 is a view showing an example for explaining a rack cooling control apparatus according to another embodiment of the present invention.
10 is a flowchart specifically illustrating a method of determining a fan driving rate according to another embodiment of the present invention.
11 is a view showing an example for explaining the location of the temperature sensor in the rack cooling control apparatus according to another embodiment of the present invention.
12 is a view showing an example for explaining the position of the damper and the outside temperature sensor in the rack cooling control apparatus according to another embodiment of the present invention.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the implementation of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by describing a preferred embodiment of the present invention with reference to the accompanying drawings. However, the present invention may be implemented in various different forms, and is not limited to the described embodiments. In addition, in order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals in the drawings indicate the same members.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components unless specifically stated to the contrary. In addition, terms such as "... unit", "... group", "module", and "block" described in the specification mean a unit that processes at least one function or operation, which is hardware, software, or hardware. And software.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, the detailed description may be omitted.

Hereinafter, a configuration of a rack cooling control apparatus according to an embodiment of the present invention will be described in detail with reference to the related drawings.

1 is a block diagram showing the components constituting the rack cooling control apparatus according to an embodiment of the present invention.

As shown in FIG. 1, the rack cooling control device 10 may include a computer equipment rack 100, a control device 200, a cooling device 300, and an outdoor unit 400.

The rack cooling control apparatus 10 of the present invention does not control the temperature of the entire computer equipment rack 100, but may individually control the temperature of the accommodation space in which the computer equipment is accommodated. For example, if the storage space of the computer equipment rack 100 is composed of five, the fan constituting the cooling device 400 is also composed of five, which is the number of accommodation spaces, so that the temperature of the accommodation space can be individually controlled.

The computing equipment rack 100 of the present invention includes a frame assembly and the above-described frame assembly It may be composed of a top plate forming an upper surface, a front plate forming a front surface, a side plate forming a side surface, and a rear plate forming a rear surface. Although not shown, an accommodation space for accommodating and storing at least one computing device may be installed inside the frame assembly, and a temperature sensor may be included in the front and rear parts of the accommodation space to measure the temperature. In addition, in order to individually control the temperature of the accommodation space, a plurality of ventilation holes may be formed on the front plate and the rear plate.

The control device 200 of the present invention may generate a control signal for adjusting the temperature of the accommodation space. The temperature measured in the accommodation space may be calculated, and a control signal for controlling the air volume of the cooling device 300 may be generated based on the calculated information. In addition, the control device 200 generates a warning signal when the difference between the exhaust temperature and the intake air temperature is greater than or equal to the first reference temperature or the intake air temperature is greater than or equal to the first reference temperature, and generates a control signal so that the automatic switching device is operated. If is maintained below the second reference temperature for a preset time, a control signal for reducing the driving rate of the cooling device fan and operating the damper may be generated. For example, when the intake air temperature is 37°C or higher, a control signal may be sent to generate a warning signal to the notification unit, and a control signal may be generated so that the automatic opening/closing device is operated simultaneously. In addition, if the outside temperature is kept below 23 degrees for 1 hour, a control signal can be generated to reduce the drive rate of the cooling unit fan to 20% and activate the damper.

A control signal for controlling the air volume of the cooling device 300 may be generated by monitoring the utilization rate of the computing equipment in real time. For example, it is possible to monitor the power usage of computer equipment accommodated in the accommodation space in real time, and generate a control signal that controls the air volume of the cooling device 300 based on the result of the real-time monitoring, but the utilization rate of the computer equipment is reduced. The real-time monitoring method is not limited thereto.

A detailed description of generating a control signal for controlling the air volume of the cooling device 300 based on information calculated using the temperature measured in the accommodation space will be described later with reference to FIGS. 8 to 10.

The cooling apparatus 300 of the present invention includes at least one fan for controlling the temperature of the accommodation space, and a driving rate of the fan may be determined based on the measured intake air temperature. Here, the air volume of the cooled air may be adjusted by the driving rate of the fan. In addition, the cooling device 300 may adjust the amount of air cooled by the compressor driving rate of the outdoor unit 400.

The outdoor unit 400 of the present invention may be connected to the cooling device 300 to exchange heat with the air of the cooling device 300 to deliver the cooled air to the cooling device 300. Specifically, the air having a higher temperature passing through the accommodation space is delivered to the cooling device 300, and the air with a higher temperature delivered to the cooling device 300 is delivered to the outdoor unit 400, and the compressor of the outdoor unit 400 and the The air having a high temperature may be cooled by the condenser and transferred to the cooling device 300.

The outdoor unit 400 of the present invention may include a compressor, a condenser, an expansion valve, and an evaporator.

2 is a block diagram showing the components constituting a computer equipment rack according to an embodiment of the present invention.

As shown in Fig. 2, the computer equipment rack 100 includes an inlet 110, a temperature sensor unit 120, a computer equipment accommodation space 130, an outlet 140, a damper 150, and a notification unit 160 And it may include an automatic opening and closing device 170.

Inlet 110 of the present invention may be formed in at least one or more on the front plate of the computer equipment rack 100 to allow the cooled air of the cooling device 300 to be sucked into the accommodation space. The suction port 110 of the present invention may be formed as many as the number of accommodation spaces.

The temperature of the accommodation space can be controlled by the cooled air entering through the inlet 110 of the present invention.

Inlet 110 of the present invention may further include a valve. Specifically, it may be a valve that opens when the damper 150 is driven and closes when the damper 150 is not driven. Since the damper 150 is opened when it is driven, external air is introduced and the temperature of the accommodation space can be adjusted to the external air. In this case, the amount of cooled air introduced through the cooling device 300 may be reduced.

In the temperature sensor unit 120 of the present invention, a plurality of temperature sensors may be formed on the front and rear portions of the accommodation space in order to measure the temperature of the accommodation space. Here, the temperature sensor may be an RTD surface bonding temperature sensor that is attached using an adhesive tie among the contact type temperature sensor and the non-contact type temperature sensor, but the temperature sensor is not limited thereto.

The computing equipment accommodation space 130 of the present invention is a space provided to accommodate the computing equipment, and each of the accommodation spaces may be independently formed. Therefore, it is possible to individually control the temperature of each of the accommodation spaces.

The discharge port 140 of the present invention may be formed in at least one on the rear plate of the computer equipment rack 100 to discharge air that has passed through the accommodation space and guide it to the cooling device 300. Specifically, air having a high temperature passing through the accommodation space may be delivered to the cooling device 300 through the outlet 140.

The outlet 140 of the present invention may further include a valve. Specifically, it may be a valve that opens when the damper 150 is driven and closes when the damper 150 is not driven. Since the damper 150 is opened when it is driven, internal air may flow out. In this case, the internal air delivered to the cooling device 300 may be reduced.

The damper 150 of the present invention is formed on a door provided on the front and rear surfaces of the computer equipment rack 100 to forcibly inflow outside air into the inlet 110 and force the air discharged through the outlet 140 to outflow to the outside. have. One damper 150 of the present invention is formed on each door provided on the front and rear surfaces, and the inside is composed of at least one fan. Here, the damper 150 formed on the door provided on the front may be mounted at an angle of 40 to 45 degrees compared to the door provided on the front side. Therefore, it is easy to introduce external air, and harmful substances (liquid, etc.) entering the computer equipment rack 100 through the damper 150 can be blocked.

The damper 150 of the present invention can be operated if the outside air temperature is maintained below the second reference temperature for a preset time. For example, if the outside temperature is maintained at 23 degrees or less for 1 hour, the damper 150 may be operated to adjust the temperature of the computer equipment accommodation space 130 with outside air.

Meanwhile, whether or not the damper 150 is operated may be determined according to a monitoring result of a temperature sensor provided on the front side of the computer equipment rack 100. For example, as a result of monitoring a temperature sensor provided on the front of the computer equipment rack 100, when the external temperature is maintained at 23 degrees or less for a certain period of time, the driving rate of the cooling device 300 is reduced to a minimum (e.g., normal). 20% of the driving rate), and by operating the damper 150 provided on the front and rear doors of the computer equipment rack 100, the computer equipment can be cooled to the outside temperature.

The damper 150 includes a fan mounted in a hole formed in a door provided on the front and rear surfaces of the computer equipment rack 100, and an accommodation space by introducing outside air into the accommodation space of the computer equipment rack 100 through a firewood fan. It is a device to export the heat of heat to the outside.

The damper 150 provided on the front plate of the computer equipment rack 100 may be provided so that the direction in which air is introduced through the front plate and the fan is vertical, but is not limited thereto, and has a predetermined inclination with the front plate. The damper 150 may be installed in a form having. For example, the damper 150 provided on the front plate of the computer equipment rack 100 may be mounted such that the direction in which air is introduced through the front plate and the fan is 90 degrees, but is not limited thereto. The damper 150 may be mounted in an inclined shape such that the direction in which air is introduced through the fan is 40 to 45 degrees.

Here, it is preferable that the damper 150 is mounted in an inclined shape so that external air can be introduced in a diagonal direction above the ground, but is not limited thereto. When the damper 150 is mounted in an inclined form, external air is easily introduced, and when water falls from the outside of the computer equipment rack 100, water is prevented from entering the fan or intake port of the damper 150 can do.

The notification unit 160 of the present invention is formed outside the computer equipment rack 100 and may generate a warning signal when it is determined that the cooling device is defective. Here, the warning signals are warning lights and alarm sounds.

If the intake air temperature is higher than the first reference temperature, the notification unit 160 may determine that the cooling device has failed, and may generate a warning light and an alarm sound outside the computer equipment rack 100. For example, when the intake air temperature is 37 degrees or higher, it is determined that the cooling device 300 has failed, and a warning signal may be generated.

The automatic opening/closing device 170 of the present invention is formed on the door provided on the front and rear surfaces of the computer equipment rack, so that the door can be opened and closed automatically. The automatic opening/closing device 170 of the present invention operates at the same time as the warning signal of the notification unit 160.

When the intake air temperature is higher than the first reference temperature, the automatic opening/closing device 170 determines that the cooling device is malfunctioning, and automatically opens the front and rear doors of the computer equipment rack 100 at the same time as the warning signal is generated so that outside air is Let it flow in. For example, if the intake air temperature is 37 degrees or higher, a warning signal is generated, and the automatic opening/closing device 170 operates to automatically open the door to allow external air to flow into the computer equipment accommodation space 130 to allow the computer equipment accommodation space ( 130) can be lowered.

3 is a block diagram showing components constituting a temperature sensor unit according to an embodiment of the present invention.

As shown in FIG. 3, the temperature sensor unit 120 may include an intake air temperature sensor 122 and an exhaust temperature sensor 123.

The outside temperature sensor 121 of the present invention is a sensor that is provided on a door provided in the front of the computer equipment rack 100 to measure the outside temperature of the computer equipment rack 100. That is, the outside temperature sensor 121 may measure the outside temperature.

The intake air temperature sensor 122 of the present invention is a sensor that is provided in the intake port 110 of the front portion of the accommodation space to measure the temperature of air entering the accommodation space. That is, the intake air temperature sensor 122 may measure the intake air temperature.

The exhaust temperature sensor 123 of the present invention is a sensor that is provided in the exhaust port 140 of the rear portion of the accommodation space to measure the temperature of air that has passed through the accommodation space and has increased temperature. That is, the exhaust temperature sensor 123 may measure the exhaust temperature.

4 is a block diagram showing components constituting a control device according to an embodiment of the present invention.

As shown in FIG. 4, the control device 200 may include a receiving unit 210, a calculating unit 220, and a control signal generating unit 230.

The receiving unit 210 of the present invention may receive temperature data measured by the temperature sensor unit 120.

The calculation unit 220 of the present invention may calculate a target value and a driving rate based on the measured temperature data. Here, the target value may be calculated by a difference between the measured exhaust temperature data and the measured intake air temperature data.

To calculate the target value, Equation 1 may be used.

Where T _out is the target value, T _o (n+1<o<n+n, n is a natural number greater than 1) is the exhaust temperature, and T _i (1<i<n, n is a natural number greater than 1) is the intake air temperature to be. n is proportional to the number of accommodation spaces, the target value is compared with a preset value, and the driving rate of the fan of the cooling device 300 may be determined using the comparison result value. A specific method will be described later in FIG. 10.

The calculation unit 220 of the present invention may calculate the driving rate of the outdoor unit compressor based on the average value of the measured data of at least one intake air temperature.

In order to calculate the driving rate of the outdoor unit compressor, Equation 2 may be used.

Here, T _a is an average value of the intake air temperature data, and a driving rate of the outdoor unit compressor may be determined by comparing the average value of the intake air temperature data with a threshold value. For example, if there are three accommodation spaces _{, the average value of T 1} , T ₂ , and T ₃ can be obtained, and the average value and the threshold value can be compared. If the average value is less than 22 degrees, the driving rate of the outdoor unit compressor is determined as 20%, and if the average value is more than 22 degrees and less than 24 degrees, the driving rate of the outdoor unit compressor is determined as 40%, and the average value is more than 24 degrees. If it is less than 26 degrees, the driving rate of the outdoor unit compressor is determined as 60%, and if the average value is 26 degrees or more and less than 28 degrees, the driving rate of the outdoor unit compressor is determined 80%, and if the average value is more than 28 degrees, the outdoor unit compressor is driven. The rate can be determined as 100%. As the driving rate of the outdoor unit compressor increases, the rate at which cooled air is generated increases proportionally.

The control signal generator 230 of the present invention may generate a control signal for controlling the cooling device 300 based on a target value and a driving rate. When the driving rate of the fan of the cooling device 300 is determined by the calculation unit 220 using the comparison result value of the target value and the preset value, the control signal generation unit 230 controls the determined driving rate of the fan. A signal may be generated and transmitted to the cooling device 300. In addition, when the driving rate of the outdoor unit compressor is determined by the calculation unit 220, the control signal generation unit 230 may generate a control signal for controlling the determined driving rate of the outdoor unit compressor and transmit the generated control signal to the outdoor unit 400.

5 is a flowchart illustrating a rack cooling control method according to another embodiment of the present invention.

As shown in FIG. 5, in the rack cooling control method, the temperature of the accommodation space in which the computing equipment is accommodated may be measured in real time in step S510. Specifically, the temperature of the accommodation space may be measured in real time using the intake air temperature sensor and the exhaust temperature sensor.

Next, in step S520, the cooling device may be controlled by generating a control signal for adjusting the temperature of the accommodation space. Specifically, a control signal capable of controlling the cooling device may be generated using temperature data obtained through the intake air temperature sensor and the exhaust temperature sensor.

Next, in step S530, the air volume of the cooled air for controlling the temperature of the accommodation space may be adjusted based on the control signal. Specifically, based on the control signal, the driving rate of the fan and the driving rate of the compressor of the outdoor unit are controlled to adjust the air volume of the cooled air.

Next, in step S540, the cooled air may be transferred to the cooling device by exchanging heat with air whose temperature is increased based on the driving rate determined based on the control signal.

Next, in step S550, if the target value is higher than the first reference temperature based on the control signal, a warning signal is generated to the notification unit 160 and the automatic opening/closing device 170 is operated so that outside air is transferred to the computer equipment accommodation space 130. It is introduced to control the temperature, and if the outside air temperature is below the second reference temperature and is maintained for a preset time, the damper 150 is operated to allow the outside air to flow into the computer equipment accommodation space 130 to control the temperature. have.

6 is a flowchart illustrating a temperature measurement step according to another embodiment of the present invention.

As shown in FIG. 6, in the temperature measurement step, the outside temperature may be measured through an outside temperature sensor disposed on the outer front part of the computer equipment rack in step S511.

Next, in step S511, the temperature of the place where the air cooled into the accommodation space is sucked may be measured. That is, the temperature of the air sucked into the accommodation space can be measured using the suction temperature sensor.

Next, in step S512, the temperature at which the air that has passed through the accommodation space is discharged may be measured. That is, the temperature of the air passing through the accommodation space can be measured using the exhaust temperature sensor.

7 is a flowchart illustrating a control step according to another embodiment of the present invention.

As shown in FIG. 7, in the control step, temperature data measured in the temperature measurement step in step S521 may be first received.

Next, the target value and the driving rate may be calculated using the temperature measured in step S522. Here, the target value may be calculated by a difference between the exhaust temperature data and the intake air temperature data, and the driving rate of the fan of the cooling device 300 may be determined using a result obtained by comparing the target value with a preset value. In addition, the compressor driving rate of the outdoor unit 400 may be determined by using the average value of the intake air temperature data.

Next, in step S523, a control signal for controlling the air volume of the cooled air may be generated based on the target value and the driving rate.

8 is a flowchart specifically illustrating a control step according to another embodiment of the present invention.

As shown in FIG. 8, in the control step, a target value and a preset value may be compared in step S810. Here, the preset value may be 5 degrees, 7 degrees, 9 degrees, or 11 degrees, but the preset value may be changed by a user or a developer. After comparing the target value with the preset value, step S820 may be performed.

In step S820, the intake air temperature and the reference value may be compared. Here, the reference value may be set to 25 degrees, but the set reference value may be changed by a user or a developer.

Next, in step S830, the driving rate of the fan of the cooling device 300 may be determined. The driving rate of the fan of the cooling device 300 may be determined based on the result value compared in step S810 and the result value compared in step S820. The fan drive rate can be determined as one of six: 20%, 40%, 60%, 80%, 90%, and 100%. The higher the fan drive rate, the higher the air volume.

Next, in step S840, the driving rate of the compressor of the outdoor unit may be determined by comparing the average value of the intake air temperature with a preset value. For a specific method of determining the compressor driving rate of the outdoor unit, refer to the calculation unit 220 of FIG. 4.

Next, the air volume of the cooled air may be determined based on the compressor driving rate in step S850. The air volume of the cooled air may be controlled by using a control signal generated based on the driving rate of the cooling device 300 and the driving rate of the compressor of the outdoor unit 400.

9 is a view showing an example for explaining a rack cooling control apparatus according to another embodiment of the present invention.

As shown in Fig. 9, the rack cooling control device includes five accommodation spaces in which five servers are accommodated, five intake air temperature sensors 910, five exhaust temperature sensors 920, an outside temperature sensor 930, and a front surface. A secondary damper 940, a rear damper 950, an automatic opening/closing device 960, a computer equipment rack including a notification unit, a cooling device including five fans, an outdoor unit connected to the cooling device, and a control device. Specifically, the computer equipment rack includes _{a storage space consisting of an intake air temperature sensor T 1} (911) and an exhaust temperature sensor T ₆ (921), a storage space consisting of T ₂ (912) and exhaust temperature sensor T ₇ (922), and T ₃ An accommodation space consisting of (913) and exhaust temperature sensor T ₈ (923), an accommodation space consisting of T ₄ (914) and exhaust temperature sensor T ₉ (924), T ₅ (915) and exhaust temperature sensor T ₁₀ (925) It may include a receiving space consisting of. Here, each of the accommodation spaces is independently connected to the cooling device fan so that temperature control can be performed individually. For example, the accommodation space composed of the intake air temperature sensor T ₁ 911 and the exhaust temperature sensor T ₆ 921 may be connected to Fan 1 to control temperature. Specifically, _{by using the difference between the value measured at T 6} (921) and the value measured at T ₁ (911), the control device obtains a target value, compares the target value and a preset value, and T ₁ (911) The driving rate of Fan 1 can be determined by comparing the value measured at and the reference value of 25 degrees. In addition, the average value of the intake air temperature values measured by the intake air temperature sensor 910 may be obtained, and the average value and the threshold value may be compared to determine a compressor driving rate of the outdoor unit.

In addition, if the difference between the exhaust temperature sensor and the intake air temperature sensor in the control device or if the intake air temperature sensor is 37 degrees or more, it is determined that the cooling device has failed, and a warning signal is generated from the notification unit and the control signal so that the automatic switching device A 960 is operated If the outside temperature measured by the outside temperature sensor 930 is maintained at 23 degrees or less for 1 hour, the front damper D ₁ 940 and the rear damper D ₂ 950 are operated, and the cooling device 300 ) A control signal can be generated to make the fan drive rate 20%.

10 is a flowchart specifically illustrating a method of determining a fan driving rate according to another embodiment of the present invention.

As shown in FIG. 10, the method of determining the fan driving rate of the cooling device 300 may first compare whether the target value is less than a preset value of 5 degrees (S1010).

Here, if the target value is less than the preset value of 5 degrees, it may be compared whether the intake air temperature value is less than the reference value of 25 degrees (S1020).

Here, if the intake air temperature value is less than the reference value of 25 degrees, the fan driving rate may be determined as 20% (s1030).

If the intake air temperature value is not less than the reference value of 25 degrees, the fan driving rate may be determined as 40% (S1032).

If the target value is not less than the preset value of 5 degrees, it may be compared whether the target value is less than the preset value of 7 degrees (S1012).

Here, if the target value is less than the set value of 7 degrees, it may be compared whether the intake air temperature value is less than the reference value of 25 degrees (S1022).

Here, if the intake air temperature value is less than the reference value of 25 degrees, the fan driving rate may be determined as 40% (s1032).

If the intake air temperature value is not less than the reference value of 25 degrees, the fan driving rate may be determined to be 60% (S1034).

If the target value is not less than the preset value of 7 degrees, it may be compared whether the target value is less than the preset value of 9 degrees (S1014).

Here, if the target value is less than the set value of 9 degrees, it may be compared whether the intake air temperature value is less than the reference value of 25 degrees (S1024).

Here, if the intake air temperature value is less than the reference value of 25 degrees, the fan driving rate may be determined as 60% (s1034).

If the intake air temperature value is not less than the reference value of 25 degrees, the fan driving rate may be determined as 80% (S1036).

If the target value is not less than the preset value of 9 degrees, it is possible to compare whether the target value is less than the preset value of 11 degrees (S1016).

Here, if the target value is less than the set value of 11 degrees, it may be compared whether the intake air temperature value is less than the reference value of 25 degrees (S1026).

Here, if the intake air temperature value is less than the reference value of 25 degrees, the fan driving rate may be determined as 80% (s1036).

If the intake air temperature value is not less than the reference value of 25 degrees, the fan driving rate may be determined to be 90% (S1036).

If the target value is not less than the preset value of 11 degrees, it is possible to compare whether the intake air temperature value is less than the reference value of 25 degrees (S1028).

Here, if the intake air temperature value is less than the reference value of 25 degrees, the fan driving rate may be determined to be 90% (s1038).

If the intake air temperature value is not less than the reference value of 25 degrees, the fan driving rate may be determined as 100% (S1040).

When the fan driving rate is determined, the step of determining the compressor driving rate of the outdoor unit may be performed (S840).

11 is a view showing an example for explaining the location of the temperature sensor in the rack cooling control apparatus according to another embodiment of the present invention.

Figure 11 (a) is a front view of the computer equipment rack 100, Figure 11 (b) is a front cross-sectional view of the computer equipment rack 100, Figure 11 (c) is a side cross-sectional view of the computer equipment rack 100 It is a drawing.

As shown in (b) of FIG. 11, the temperature sensor may be located on the right side when viewed from the front.

As shown in (c) of FIG. 11, the intake air temperature sensor 1120 may be located on the front side and the exhaust temperature sensor 1110 may be located on the rear side.

12 is a view showing an example for explaining the position of the damper and the outside temperature sensor in the rack cooling control apparatus according to another embodiment of the present invention.

Figure 12 (a) is a side view of the computer equipment rack 100, Figure 12 (b) is a front view of the computer equipment rack 100.

As shown in (a) of Figure 12, the front damper 1220 is formed at the bottom of the door provided in the front of the computer equipment rack 100, the rear damper 1210 is the rear of the computer equipment rack 100 It is formed on the top of the door provided in.

As shown in (b) of FIG. 12, the outside temperature sensor 1230 is formed on the top of the door provided in the front of the computer equipment rack 100 to measure the outside temperature.

12 shows that the front damper 1220 is provided so that the direction in which air is introduced through the front plate and the fan is vertical, but is not necessarily limited thereto, and the front portion has a shape having a predetermined inclination with the front plate. A damper 1220 may be installed. For example, the front damper 1220 may be mounted in an inclined shape such that the direction in which air is introduced through the front plate and the fan is 40 to 45 degrees. Here, it is preferable that the front damper 1220 is mounted in an inclined shape so that external air can be introduced in a diagonal direction above the ground, but is not limited thereto. When the front damper 1220 is mounted in an inclined form, external air is easily introduced, and when water falls from the outside of the computer equipment rack 100, water is transferred to the fan or intake port of the front damper 1220. It can be prevented from entering.

Even if all components constituting the embodiments of the present invention described above are described as being combined into one or operating in combination, the present invention is not necessarily limited to these embodiments. That is, as long as it is within the scope of the object of the present invention, one or more of the components may be selectively combined and operated. In addition, although all of the components may be implemented as one independent hardware, a program module that performs some or all functions combined in one or more hardware by selectively combining some or all of the components. It may be implemented as a computer program having In addition, such a computer program is stored in a computer readable media such as a USB memory, a CD disk, a flash memory, etc., and is read and executed by a computer, thereby implementing an embodiment of the present invention. The recording medium of the computer program may include a magnetic recording medium, an optical recording medium, and the like.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the technical field to which the present invention pertains can make various modifications, changes, and substitutions within the scope not departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. . The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10: rack cooling throttling device
100: computing equipment rack
200: control device
300: cooling system
400: outdoor unit

Claims (14)

In the rack cooling control device,
A computer equipment rack including at least one accommodation space capable of accommodating computer equipment;
A control device generating a control signal for adjusting the temperature of the accommodation space;
A cooling device that adjusts the temperature of the accommodation space by adjusting the air volume based on the control signal; And
An outdoor unit that transmits the cooled air by determining a driving rate based on the control signal and exchanging heat with air whose temperature of the cooling device has increased based on the driving rate
Rack cooling control device comprising a. The method of claim 1,
The computing equipment rack,
A suction port through which air is sucked into the accommodation space;
An outlet through which the air passing through the receiving space is discharged;
A plurality of temperature sensor units that measure the temperature of the accommodation space and the external temperature of the computer equipment rack in real time; And
A plurality of dampers forcibly introducing external air into the inlet and forcibly outflowing the air discharged through the outlet to the outside
Rack cooling control device comprising a. The method of claim 2,
The computing equipment rack,
A notification unit for generating a warning signal when it is determined that the cooling device is malfunctioning; And
Further comprising an automatic opening and closing device capable of automatically opening and closing the door provided on the front and rear surfaces of the computer equipment rack,
The automatic opening and closing device,
The rack cooling control device, characterized in that by operating simultaneously with the warning signal to allow the outside air to flow into the accommodation space. The method of claim 2,
The temperature sensor unit,
An outside temperature sensor disposed on the outer front side of the computer equipment rack to measure the outside temperature;
An intake air temperature sensor disposed at the intake port to measure an intake air temperature; And
Exhaust temperature sensor disposed at the outlet and measuring exhaust temperature
Rack cooling control device comprising a. The method of claim 4,
The cooling device,
And at least one fan for controlling a temperature of each of the accommodation spaces, and a driving rate of the fan is determined based on the intake air temperature. The method of claim 1,
The control device,
A receiving unit receiving the measured temperature data;
A calculation unit that calculates a target value and a driving rate using the measured temperature data; And
A control signal generator that generates a control signal based on the target value and the driving rate
Rack cooling control device comprising a. The method of claim 6,
The calculation unit,
A target value is calculated using the exhaust temperature data and the intake air temperature data received from the temperature sensor unit,
The target value is calculated based on a difference between the exhaust temperature data and the intake air temperature data. The method of claim 6,
The calculation unit,
The driving rate of the outdoor unit is calculated using at least one intake air temperature data received from the temperature sensor unit,
The driving rate is calculated using an average of the intake air temperature data. The method of claim 1,
The control device,
If the target value is higher than the first reference temperature, the warning signal is generated and a control signal is generated so that the automatic switching device is operated, and if the outside temperature is maintained below the second reference temperature for a preset time, the driving rate of the cooling unit fan is reduced. A rack cooling control device, characterized in that it generates a control signal for operating the damper. In the rack cooling control method,
A temperature measuring step of measuring in real time a temperature of an accommodation space in which the computing equipment is accommodated in a computing equipment rack and an external temperature of the computing equipment rack;
A control step of controlling a cooling device and the computer equipment rack by generating a control signal for adjusting the temperature of the accommodation space;
A temperature control step of adjusting the temperature of the accommodation space based on the control signal; And
A cooling air delivery step of determining a driving rate based on the control signal and transferring the cooled air by exchanging heat with the air of the cooling device based on the driving rate
Rack cooling control method comprising a. The method of claim 10,
The temperature measuring step,
An outside temperature measurement step of measuring the outside temperature by being disposed on the outer front part of the computer equipment rack;
An intake air temperature measuring step of measuring a temperature where air cooled into the accommodation space is sucked; And
Exhaust temperature measurement step of measuring the temperature at which air in the accommodation space is discharged
Rack cooling control method comprising a. The method of claim 10,
The control step,
A receiving step of receiving the measured temperature data;
A calculation step of calculating a target value and a driving rate using the measured temperature data; And
Control signal generation step of generating a control signal based on the target value and the driving rate
Rack cooling control method comprising a. The method of claim 11,
Adjusting the temperature of the accommodation space using external air based on the control signal
Rack cooling control method comprising a further. A computer-readable recording medium storing a program for executing the rack cooling control method according to any one of claims 10 to 13 through execution by a processor.

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