KR102075330B1 - Air circulating type cooling apparatus - Google Patents

Abstract

An air circulation chiller is disclosed. The air circulation cooling apparatus of the present invention detects the air temperature inside the case and generates an air flow without a wing according to the air temperature inside the case to cool the printed circuit board installed in the sub-rack; And it characterized in that it comprises a user terminal for controlling the cooling unit by remotely monitoring the air temperature inside the case.

Description

Air circulation chiller {AIR CIRCULATING TYPE COOLING APPARATUS}

The present invention relates to an air circulation cooling device, and more particularly, to an air circulation cooling device for cooling a sub-rack installed in communication equipment or the like by an air circulation method.

The communication equipment is provided with a subrack. The sub-rack includes a motherboard for connecting a plurality of printed circuit boards in an upright position at the center rear, a guide rail for inserting the printed circuit boards from the front and guiding them to the connection slots of the motherboard, and a support for supporting the guide rails. It includes.

The printed circuit board may generate a large amount of heat in a portion in which the heating component is mounted. However, since the sub rack has the above-described structure, the printed circuit boards are inserted, so that it is difficult to secure a heat dissipation space for the heat generating portion of the printed circuit board. Since the sub rack has a structure in which both front, rear, left and right are closed, only the heat radiation from the bottom to the top is possible. In addition, the sub-rack is difficult to place the heat-generating components in the lower portion, it may be a limitation in the design of the printed circuit board.

Accordingly, in the related art, although a cooling fan is installed in the sub rack to dissipate heat generated in the sub rack, the volume of the sub rack may be increased by cooling the entire sub rack, and cooling of the entire sub rack is blocked when the cooling fan fails. It may be, foreign matters such as dust accumulated in the cooling fan, there was a problem such that the cooling fan is abnormally operated.

In addition, deterioration damage occurs in the cooling fan exposed to the heat, the cooling fan blocks the gentle discharge of the heat, the cooling fan is formed in a structure that is easy to accumulate foreign matters, there was a problem that the cooling efficiency due to foreign matters.

In addition, the prior art was formed in a hermetic seal was likely to cause a failure due to its own heat, there was a problem that the failure is prolonged because only the operation of the cooling fan can be confirmed only in the field.

Background art of the present invention is disclosed in the 'cooling fan unit for sub-rack' Republic of Korea Patent Publication No. 10-0934419 (2009.12.21).

The present invention has been made to improve the above-mentioned problems, an object according to an aspect of the present invention is to cool the printed circuit board of the sub-rack by using a blower for generating air flow without wings and to operate the blower and the inside of the case It is to provide an air circulation cooler to remotely manage the environment.

According to an aspect of the present invention, there is provided an air circulation cooling device including: a cooling unit configured to sense an air temperature inside a case and generate air flow without a wing according to the air temperature inside the case to cool the printed circuit board installed in the subrack; And a user terminal for remotely monitoring the air temperature inside the case to control the cooling unit.

The cooling unit of the present invention comprises a temperature sensing unit for sensing the air temperature of the case; An air amplification blower configured to cool the printed circuit board of the subrack inside the case by generating an air flow without wings; And a controller configured to cool the printed circuit board by circulating the air in the case by controlling the blower according to the air temperature sensed by the temperature sensor.

The control unit of the present invention is characterized in that for controlling the blower if the air temperature detected by the temperature sensing unit is more than a predetermined set temperature.

The control unit of the present invention is characterized in that for controlling the blower to cool the printed circuit board inside the case to generate the operation information of the blower.

The user terminal of the present invention receives the operation information of the blower and the air temperature inside the case from the control unit to determine whether or not the actual operation of the blower and to determine whether or not the blower according to the determination result It features.

The user terminal of the present invention is characterized in that if the blower does not operate despite the air temperature inside the case is higher than a predetermined set temperature, the blower unit is determined to output a failure of the blower unit .

The management server for receiving the operation information of the blower from the control unit of the present invention cumulatively stores the total operating time of the blower, and predicts the failure of the blower through the cumulative total operation time of the blower. It is characterized by including.

The present invention is characterized in that it further comprises a blower is installed in the case for discharging the heat inside the case to the outside.

The user terminal of the present invention is characterized by operating the cooling unit by transmitting a control signal to the cooling unit in accordance with a user's control command.

An air circulation cooling apparatus according to an aspect of the present invention cools a printed circuit board of a subrack and maintains the temperature of the subrack within an appropriate temperature range.

Air circulation cooling apparatus according to another aspect of the present invention can improve the cooling efficiency compared to the conventional cooling control method by the cooling fan by using a blower for generating air flow without wings.

Air cooling device according to another aspect of the present invention to reduce the possibility of failure of the printed circuit board by remotely controlling the blower that generates air flow without wings, it is possible to check the operation of the blower even at a remote location The failure of the subrack can be minimized.

1 is a block diagram of an air circulation cooling apparatus according to an embodiment of the present invention.
2 is a block diagram of a cooling unit according to an embodiment of the present invention.
3 is an exemplary view illustrating the installation of a blower according to an exemplary embodiment of the present invention.
4 is a diagram conceptually illustrating an operation of a blower according to an exemplary embodiment of the present invention.
5 is a perspective view of a case according to an embodiment of the present invention.
6 is a flowchart illustrating an operation process of an air circulator according to an embodiment of the present invention.
7 is a block diagram of a management server according to an embodiment of the present invention.
8 is a flowchart illustrating an operation process of a management server according to an embodiment of the present invention.

Hereinafter, an air circulation cooling apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

1 is a block diagram of an air circulation cooling apparatus according to an embodiment of the present invention, Figure 2 is a block diagram of an air circulator according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention 4 is an exemplary view illustrating an installation of a blower according to an embodiment of the present invention. FIG. 4 is a view conceptually illustrating an operation of the blower according to an embodiment of the present invention. A flowchart illustrating the operation of the air circulator according to an embodiment of the present invention.

Referring to Figure 1, the air circulation cooling apparatus according to an embodiment of the present invention is a subrack (Subrack) 20 provided in the communication equipment 10, such as a general-purpose computer, a digital switching system and a large capacity monitoring and control device Cool the printed circuit board.

Typically, the communication module provided in the communication equipment 10 such as a general purpose computer, a digital switching system, and a large capacity monitoring and control device is accommodated in the subrack 20 to protect it from foreign objects and external shocks.

In this case, the sub-rack 20 is equipped with a printed circuit board mounted with a component that generates a lot of heat, the sub-rack 20 is a motherboard (not shown) for connecting the plurality of printed circuit boards in an upright state at the center rear. This printed circuit board can generate a large amount of heat in the portion where the heating component is mounted.

However, since the printed circuit boards are inserted and mounted in the sub rack 20 as described above, it is difficult to secure a heat dissipation space for the heat generating portion of the printed circuit board. Since the sub rack 20 has a structure in which both front, rear, left, and right sides are closed, only the heat radiation from the bottom to the top is possible. Therefore, there is a need to cool the printed circuit board.

1, the air circulation cooling apparatus according to an embodiment of the present invention includes a cooling unit 30, the management server 40 and the user terminal 50, according to the air temperature inside the case 11 By cooling the printed circuit board by circulating the air inside the case 11 by generating an air flow without wings, the temperature inside the communication equipment 10 is effectively managed.

The cooling unit 30 senses the air temperature inside the case 11 of the communication equipment 10 and cools the printed circuit board by generating an air flow without a wing according to the air temperature inside the case 11.

Referring to FIG. 2, the cooling unit 30 includes a blower unit 31, a temperature detector 32, and a controller 33.

The temperature detector 32 is installed inside the case 11 of the communication device 10 to detect the air temperature inside the case 11.

The temperature sensing unit 32 may be installed at various positions inside the case 11, but is not particularly limited as long as the temperature sensing unit 32 may sense heat generated from the printed circuit board.

The air blowing unit 31 is an air amplification type, which applies the Bernoulli principle that speeds up when a liquid or gas passes through a narrow space, and circulates air inside the case 11 by sending wind out through a narrow narrow gap. Let's do it. Accordingly, the blower 31 may generate an air flow without a wing to cool the printed circuit board of the sub rack 20 inside the case 11 in an air circulation manner.

3 and 4, the blower part 31 is installed in the sub rack 20 or in a heat sink (not shown) on the upper part of the sub rack 20, so that air flows forward without wings exposed to the outside. By discharging the air installed in the base (not shown), the air introduced from the outside passes through the nozzle provided with the internal flow path, and discharges the air to the front coda part through the mouth part formed on the nozzle surface. 20) Or circulate air in the heat sink.

The controller 33 controls the blower 31 according to the air temperature sensed by the temperature detector 32 to cool the printed circuit board inside the case 11.

That is, the controller 33 controls the temperature detector 32 to detect the air temperature inside the case 11, and determines whether the air temperature is higher than or equal to the preset temperature by the temperature detector 32. As a result of the determination, if the air temperature is equal to or higher than the set temperature, the control unit 33 drives the blower unit 31. Accordingly, the blower unit 31 operates to cool the printed circuit board of the sub rack 20.

Here, the set temperature is an air temperature at which the printed circuit board installed in the subrack 20 may be abnormally operated.

In addition, the controller 33 transmits the sensed air temperature to the user terminal 50 or the management server 40 in real time through the communication network when the air temperature inside the case 11 is detected by the temperature detector 32. .

The control unit 33 may be connected to the user terminal 50 or the management server 40 through various communication networks, such as Ethernet, Bluetooth, infrared communication, WiFi, Long Term Evolution (LTE) and Code Division Multiple Access (CDMA). ) May be employed.

In addition, the controller 33 generates the operation information according to the operation of the blower 31 when the blower 31 operates according to the air temperature inside the case 11 sensed by the temperature detector 32.

The operation information may include whether the blower 31 is operated and the operating time of the blower 31. Such operation information may be used to determine whether the blower 31 is broken and to predict the failure of the blower 31.

That is, the controller 33 generates operation information each time the blower 31 is operated, and transmits the generated operation information to the user terminal 50 or the management server 40, thereby transmitting the user terminal 50. It is possible to output the operating state of the rich 31 in real time, and to allow the management server 40 to predict the failure of the blower 31 through the total operating time of the blower 31.

The case 11 protects the sub rack 20 from external impact or foreign matter, and the case 11 is provided with a blower opening 12 that naturally discharges heat inside the case 11 to the outside.

The tuyeres 12 may be formed in a mesh structure as shown in FIG. 5.

The air vent 12 may be provided at various positions capable of naturally discharging heat generated from the printed circuit board to the outside, but may be provided at a position at which the air blown by the air blower 31 is discharged to the outside. have. In this case, the blower 12 naturally discharges heat inside the case 11 to the outside when the blower 31 does not operate, and is generated by the blower 31 when the blower 31 operates. By discharging the wind to the outside to increase the cooling efficiency of the blower (31).

An operation of the cooling unit 30 according to an embodiment of the present invention will be described with reference to FIG. 6.

Referring to FIG. 6, first, the temperature detector 32 detects an air temperature inside the case 11 (S110).

As the air temperature inside the case 11 is sensed by the temperature detector 32, the controller 33 controls the blower 31 according to the air temperature inside the case 11 to cool the printed circuit board. (S120).

That is, the controller 33 determines whether the air temperature sensed by the temperature detector 32 is equal to or greater than the preset temperature, and if the air temperature is equal to or greater than the preset temperature, operates the blower 31 to operate the case. (11) By circulating the air inside, the printed circuit board of the subrack 20 is cooled.

Subsequently, the controller 33 generates the operation information according to the operation of the blower 31 as the blower 31 operates as described above (S130). The operation information may include whether the blower 31 is operated and the operating time of the blower 31.

Meanwhile, the controller 33 accumulates and stores the air temperature in real time as the temperature sensor 32 senses the air temperature (S140).

As described above, as the operation information of the blower 31 is generated and the air temperature is accumulated and stored, the controller 33 transmits the operation information and / or air temperature of the blower 31 to the management server 40. (S150).

When the user terminal 50 receives the operation information of the blower 31 and / or the air temperature from the controller 33 of the cooling unit 30, the user terminal 50 outputs the operating state of the blower 31 in real time. When the control command for the operation of the blower 31 is received from the user, the control signal is transmitted to the cooling unit 30.

In addition, the user terminal 50 receives the operation information of the blower 31 and the air temperature inside the case 11 from the control unit 33 of the cooling unit 30 to determine whether the blower is actually operating and the determination result. It is determined whether or not the blower 31 according to the failure. In this case, the user terminal 50 determines that a failure has occurred in the blower 31 when the blower 31 does not operate despite the air temperature inside the case 11 being higher than or equal to a preset set temperature. The output of the blower 31 may be recognized by the user.

In this case, the control unit 33 of the cooling unit 30 operates the blower unit 31 according to the control signal received from the user terminal 50.

In addition, the management server 40 predicts the failure of the blower 31 through the total operation time of the blower 31, and transmits the prediction result to the user terminal 50, thereby allowing the user to break down the blower 31. Make the prediction results recognizable.

7 is a block diagram of a management server according to an embodiment of the present invention, and FIG. 8 is a flowchart illustrating an operation process of the management server according to an embodiment of the present invention.

Referring to FIG. 7, the management server 40 according to an embodiment of the present invention includes an analysis unit 41, a database unit 42, and a control server 43.

The database unit 42 stores the air temperature in the case 11 received from the cooling unit 30 and the failure prediction result of the blower unit 31 analyzed by the analyzing unit 41.

The analyzer 41 analyzes the operation information of the blower 31 transferred from the cooler 30 to generate a failure prediction result of the cooler 30.

Since the operation information includes the operation of the blower 31 and the operation time of the blower 31, the analyzer 41 determines the operation time of the operation information of the blower 31 transferred from the cooling unit 30. In addition, the total operation time of the blower 31 is accumulated and stored, and when the cumulatively stored total operation time of the blower 31 exceeds a preset time, it is determined that a failure of the blower 31 may occur. .

The control server 43 analyzes the operation information of the blower 31 and / or the air temperature inside the case 11 to generate monitoring information for the blower 31, and the controller 33 of the cooling unit 30. The blower 31 is controlled through

That is, when the control server 43 receives the operation information of the blower 31 and / or the air temperature inside the case 11 from the cooling unit 30, the control server 43 controls the analyzer 41 to control the blower 31. Generates a failure prediction result of the, and stores the generated failure prediction result of the blower 31 in the database unit 42.

In addition, the control server 43 accumulates and stores the air temperature in the case 11 in the database unit 42.

Hereinafter, an operation process of the management server 40 according to an embodiment of the present invention will be described.

Referring to FIG. 8, first, the management server 40 collects operation information of the blower 31 and / or air temperature inside the case 11 from the cooling unit 30 (S210).

As the operation information of the blower 31 and / or the air temperature inside the case 11 is collected from the cooling unit 30, the management server 40 may operate the operation information of the blower 31 and / or the case 11. In step S220, the air temperature inside the monitor is generated to generate monitoring information on the blower 31, and the blower 31 is controlled through the controller 33 of the cooling unit 30 (S220).

That is, the management server 40 generates a failure prediction result of the blower 31 using the operation information of the blower 31 transferred from the cooling unit 30, and predicts the failure of the generated blower 31. The result is stored in the database section 42.

In addition, each time the management server 40 receives the air temperature inside the case 11 from the cooling unit 30, the management server 40 accumulates and stores the air temperature inside the case 11 in the database unit 42.

As described above, the air circulation cooling apparatus according to the embodiment of the present invention maintains the temperature of the subrack within an appropriate temperature range by cooling the printed circuit board of the subrack. To be able.

In addition, the air circulation cooling apparatus according to an embodiment of the present invention can improve the cooling efficiency compared to the conventional cooling control method using a cooling fan by using a blower that generates air flow without wings.

In addition, the air cooling apparatus according to an embodiment of the present invention can reduce the possibility of failure of the printed circuit board by remotely controlling the blower that generates air flow without wings, and can check the operation of the blower even at a remote location. Abundance and subrack disturbances can be minimized.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary and various modifications and equivalent other embodiments are possible for those skilled in the art to which the art pertains. I will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

10: communication equipment 11: case
12: blowhole 20: subrack
30: cooling part 31: blowing part
32: temperature sensing unit 33: control unit
40: management server 41: analysis unit
42: database portion 43: control server
50: user terminal

Claims (9)

A cooling unit which senses an air temperature inside the case and generates an air flow without a wing according to the air temperature inside the case to cool the printed circuit board installed in the subrack; And
It includes a user terminal for controlling the cooling unit by remotely monitoring the air temperature inside the case,
The cooling unit temperature sensing unit for sensing the air temperature of the case; An air amplification blower configured to cool the printed circuit board of the subrack inside the case by generating an air flow without wings; And a controller configured to cool the printed circuit board by circulating the air in the case by controlling the blower according to the air temperature sensed by the temperature detector.
The control unit controls the blower to cool the printed circuit board inside the case, the air circulation cooling apparatus, characterized in that for generating the operation information of the blower.
delete The air circulation cooling apparatus of claim 1, wherein the controller controls the blower unit when the air temperature sensed by the temperature detector is greater than or equal to a preset set temperature.
delete The method of claim 1, wherein the user terminal receives the operation information of the blower and the air temperature inside the case from the control unit to determine whether the blower is actually operating or not and whether or not the blower according to the determination result Air circulation cooling device characterized in that it determines.
The method of claim 5, wherein the user terminal outputs a failure of the blower by determining that a failure has occurred in the blower if the blower does not operate despite the air temperature inside the case is higher than a predetermined set temperature. Air circulation chiller characterized in that.
The management apparatus of claim 1, wherein the operation information of the blower is received from the controller to accumulate and store the total operating time of the blower, and to predict the failure of the blower based on the accumulated operating time of the blower. Air circulation cooling device further comprising a server.
The air circulation cooling apparatus of claim 1, further comprising a blower installed in the case to discharge heat inside the case to the outside.
The air circulation cooling apparatus of claim 1, wherein the user terminal operates the cooling unit by transmitting a control signal to the cooling unit according to a user's control command.

Images