KR20170099497A

KR20170099497A - Air conditioning system of rack

Info

Publication number: KR20170099497A
Application number: KR1020160021614A
Authority: KR
Inventors: 김성진
Original assignee: (주) 지트시스템
Priority date: 2016-02-24
Filing date: 2016-02-24
Publication date: 2017-09-01

Abstract

The present invention discloses a cooling and heating system for a housing. The present invention relates to a cooling and heating system, which cools or heats the inside of the housing equipped with a generating device such as hydrogen fuel cell in a front cooling method in a regular time when supplying commercial power (AC power), and which rapidly cools the inside of the housing during blackout when emergency power (DC power) is supplied. Accordingly, the present invention effectively protects devices within the housing and prevents malfunction of the device to maximize the reliability of the housing operation.

Description

Air conditioning system of rack

More particularly, the present invention relates to a cooling / heating technology of a housing, and more particularly, to a cooling / heating system for cooling / heating the interior of a housing in which power generating equipment such as a hydrogen fuel cell is mounted, And to provide a cooling / heating system for the enclosure which is capable of protecting the equipment in the enclosure,

Generally, a computer room, which is a closed space, is provided with a plurality of enclosures such as a rack structure, and a computer or communication device (e.g., a network device, a server, a communication exchange, etc.) is installed inside the enclosure.

Equipment installed in the above-mentioned housing generates considerable heat when it is in operation, so that if such heat is not properly cooled, there is a fear of malfunction of the equipment due to overheating.

Conventionally, the internal temperature of the computer room is appropriately maintained by using an air conditioner such as an air conditioner or a constant temperature and humidity device to effectively cool the heat generated inside the enclosure.

On the other hand, in the case of a hull which is equipped with a hydrogen fuel cell, which is a power generating equipment, and which is installed outdoors, there is a limit to install the air conditioner as described above. Thus, in the case of a hull installed outside the vehicle, I could not help it.

However, since the cooling and heating system of the outdoor enclosure as described above is cooled and heated only on one side of the enclosure, the cooling and heating efficiency of the equipment installed in the enclosure is inferior.

In addition, in the case of the conventional outdoor installation enclosure, emergency cooling is not achieved in case of power failure.

Patent Registration No. 10-0240352 (registered on October 27, 1999)

Patent Registration No. 10-1444714 (Registered on Apr. 19, 2014)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a fuel cell system, , And a cooling / heating system in which cooling is rapidly performed by a rear cooling method during a power failure in which an emergency power source (DC power source) is supplied, thereby effectively protecting the equipment in the cabin .

In order to achieve the above object, the present invention provides a cooling and heating system for a housing, comprising: a housing having an opening formed in front and rear front and rear sides, the housing and the emergency power being supplied; A cooling / heating processor driven in accordance with a commercial power source supplied to the housing and operating in an operation mode of cooling or heating when a temperature difference within the housing is compared with a reference temperature; And a cooling processing unit driven in accordance with an emergency power source supplied to the enclosure and operating in an operation mode of cooling when a temperature of the enclosure is compared with a reference temperature to generate a deviation; .

The cooling / heating unit may include a first temperature sensor formed in the housing and receiving the commercial power, and sensing a temperature inside the housing; A first controller receiving the commercial power and performing a control operation of cooling or heating according to a temperature sensed by the first temperature sensor; And a second control unit for controlling the operation of the first control unit and the second control unit so that the first and second control units are connected to the first control unit and the second control unit, A first cooling part for cooling the first cooling part; And a heater unit which is formed in the housing and is supplied with the commercial power and heats the temperature of the housing by a heating operation according to a control operation of the first controller; .

In addition, the cooling processing unit may include: a second temperature sensor formed in the housing and receiving the emergency power, and sensing a temperature in the housing; A second controller receiving the emergency power and performing control of cooling according to a temperature sensed by the second temperature sensor; A second control unit for controlling the first control unit and the second control unit so that the first control unit controls the first control unit and the second control unit, A second cooling unit; And an opening formed on the front and rear front portions of the housing, respectively, the opening portions being formed at the front and rear front sides of the housing to receive the emergency power, and the opening portions are opened when the second cooling portion is operated An opening / closing unit for allowing inflow and outflow of outside air; .

The first cooling unit may include a first driving fan formed at the lower ends of the front and rear sides of the housing and driving the outside air to be sucked into the housing; And a second driving fan which is formed at the upper and lower ends of the front and rear sides of the housing and discharges the air sucked in accordance with the driving of the first driving fan and heat-exchanged with heat generated in the equipment to the outside of the housing; As shown in FIG.

In addition, the first and second driving fans are constructed such that a first filter for removing foreign substances is mounted adjacently.

The first control unit may include a control program for comparing the temperature detected by the first temperature sensor with the set reference temperature and increasing / decreasing the driving speed of the first and second driving fans in accordance with the comparison deviation Respectively.

In addition, the opening / closing portion may include a damper that is closed to block an opening formed in front and rear front portions of the housing, and is opened when the second cooling portion is operated; And a motor which is supplied with an emergency power source and drives the damper to rotate; .

Further, the opening portion is provided with a limit switch for detecting the open or closed state of the damper and outputting it to the second control unit.

The second control unit may include a control program for controlling driving of the second cooling unit when a temperature inside the vessel detected by the first temperature sensor and an open state of the damper from the limit switch are sensed.

The second cooling unit may include a plurality of second cooling units formed on a rear side of the housing and driving the first cooling unit to suck outside air from a front side front surface of the housing and discharge the outside air to the outside of the housing through a rear side front surface, 3 drive fan.

In addition, the third driving fan is constructed such that a second filter for removing foreign substances is mounted adjacently.

The first control unit is connected to the first communication module and mounted on the control board. The second control unit is connected to the second communication module and is mounted on the control board. The first and second control units are connected to the first communication module, , And 2 communication modules.

In addition, the control board on which the second control unit is mounted is equipped with a DC-DC converter for converting an emergency power supply of the supplied DC into a DC voltage of a certain level and outputting the DC voltage.

As described above, according to the present invention, the interior of a housing in which power generating equipment such as a hydrogen fuel cell is mounted is cooled or heated by a front cooling method when a commercial power (AC power) is supplied, The cooling and heating system can be rapidly cooled by the rear cooling method. Therefore, it is possible to prevent the malfunction of the equipment while maximizing the reliability of the operation of the housing while effectively protecting the equipment in the housing through the cooling and heating system.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing the structure of a cooling / heating system of a housing according to an embodiment of the present invention; FIG.
2 is a rear view showing the structure of a cooling / heating system of a housing according to an embodiment of the present invention.
3 is a side schematic view showing the structure of a cooling / heating system of a housing according to an embodiment of the present invention.
4 is an enlarged view of a portion A of Fig. 3 as an embodiment of the present invention.
Figure 5 is a schematic plan view of Figure 3 for an embodiment of the present invention.
6 is a schematic block diagram of an air-conditioning system according to an embodiment of the present invention.
7 is a flowchart of a cooling operation mode at the time of supplying commercial power as an embodiment of the present invention.
8 is a flow chart of a heating operation mode at the time of supplying commercial power as an embodiment of the present invention.
9 is a flow chart of a cooling operation mode at the time of supplying emergency power as an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, it should be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It will be understood by those of ordinary skill in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification.

In this specification, the terms "comprises" or "having ", and the like, specify that the presence of stated features, integers, steps, operations, elements, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

In addition, the embodiments described herein will be described with reference to cross-sectional views and / or plan views, which are ideal illustrations of the present invention. In the drawings, the thicknesses of the films and regions are exaggerated for an effective description of the technical content. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but may include variations in shapes that are created or required according to the manufacturing process. For example, the area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have schematic attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the apparatus and are not intended to limit the scope of the invention.

Like reference numerals refer to like elements throughout the specification. Accordingly, although the same reference numerals or similar reference numerals are not mentioned or described in the drawings, they may be described with reference to other drawings. Further, even if the reference numerals are not shown, they can be described with reference to other drawings.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a front view showing a structure of a cooling and heating system of a housing according to an embodiment of the present invention, FIG. 2 is a rear view showing a structure of a cooling and heating system of a housing according to an embodiment of the present invention, and FIG. For example, a side schematic view showing a structure of a cooling / heating system of a housing.

3 is an enlarged view of a portion A of FIG. 3 according to an embodiment of the present invention. FIG. 5 is a schematic plan view of FIG. 3 as an embodiment of the present invention. In block diagram.

Referring to FIGS. 1 to 6, the cooling / heating system of the enclosure according to the embodiment of the present invention is provided with a commercial power source (AC 220V) and an emergency power source (DC 48V) The first temperature sensor 20 and the second control unit 30 receive the commercial power. The first temperature sensor 20, the second temperature sensor 30, and the second temperature sensor 30 are installed in the housing 10, A first cooling unit 40 and a heater unit 50. The second temperature sensor 60 receives a supply of the emergency power, a second control unit 70, and a second cooling unit 80, and an opening / closing unit 90, as shown in FIG.

The first temperature sensor 20 is formed in the housing 10 so that it senses the temperature in the housing 10 and outputs the sensing information to the first controller 30. [

Here, the temperature sensed by the first temperature sensor 20 is a temperature difference between the first cooling unit 40 and the heater unit 50 when the deviation is +/- 3 degrees based on a set reference temperature (e.g., 30 degrees) The operation of the first cooling unit 40 and the heater unit 50 can be performed according to the control operation of the first control unit 30 when the deviation exceeds the predetermined value, 10 can be kept constant at all times.

The first controller 30 is configured to perform a control operation of cooling or heating according to the temperature sensed by the first temperature sensor 20. [

That is, the first control unit 30 compares the temperature in the housing 10 sensed by the first temperature sensor 20 with the set reference temperature, and determines the temperature of the first cooling unit 40 And a control program for performing a control operation to increase or decrease the driving speed.

The first control unit 30 is mounted on the control board and the control board is provided with a first communication module 315 for communicating with the second control unit 70 And is connected to the first control unit 30 in a circuit connection manner.

The first cooling unit 40 is formed on the front, rear, and bottom sides of the housing 10, and forcibly sucks the outside air in accordance with the control operation of the first control unit 30, And the first and second driving fans 41 and 42 are provided to cool the heat generated by the operation of the apparatus 100. [

The first driving fan 41 is formed at the lower ends of the front and rear sides of the housing 10 so as to drive the outside air to be sucked into the housing 10.

The second driving fan (42) is disposed at the upper and lower ends of the housing (10), and sucks air in accordance with driving of the first driving fan (41) And is discharged to the outside of the housing 10.

The first and second driving fans 41 and 42 are disposed adjacent to each other with a first filter 43 for removing foreign substances and are connected to the inside of the housing 10 by the first driving fan 41, And the air that has been heat-exchanged by the second driving fan 42 is filtered to filter the foreign substances contained in the discharged air when the air is discharged to the outside, So as to prevent dust and the like from being scattered in addition to the heat exchanged air.

The heater unit 50 is formed in the housing 10 so that the heating unit 50 is heated by the control operation of the first control unit 30 to heat the inside of the housing 10.

That is, in order to prevent the equipment 100 mounted in the housing 10 from being affected by the outside air when the housing 10 is installed outside, the heater unit 50 performs a heating operation And the heat generated in the housing 10 is circulated in the housing 10.

The second temperature sensor 60 is formed in the housing 10 so that the second temperature sensor 60 senses the temperature in the housing 10 and outputs the sensed information to the second controller 70.

Here, if the temperature sensed by the second temperature sensor 60 is ± 3 degrees based on a reference temperature (for example, 30 degrees) set the same as the first temperature sensor 20, The operation of the second cooling unit 80 can be performed according to the control operation of the second control unit 70 so that the operation of the second cooling unit 80 can be performed, So that the temperature can be kept constant at all times.

The second control unit 70 performs a control operation of cooling in an emergency situation according to the temperature sensed by the second temperature sensor 60.

That is, the second controller 70 compares the temperature in the housing 10 sensed by the second temperature sensor 60 with the set reference temperature, and controls the temperature of the second cooling unit 80 And a control program for performing a control operation to increase or decrease the driving speed.

The second control unit 70 is mounted on the control board and a second communication module (e.g., 485 communication module) 71 that enables communication with the first control unit 30 is mounted on the control board A DC-DC converter 72 (e.g., a DC-DC converter) that is configured to be connected to the second control unit 70 in a circuit connection and converts an emergency power supply (e.g., 48V) of the supplied DC into a DC voltage ).

The second cooling unit 80 is formed on the rear side of the housing 10. The second cooling unit 80 is configured to forcibly suck the outside air in accordance with the control operation of the second control unit 70, The heat generated by the operation of the apparatus 100 is cooled.

That is, the second cooling unit 80 is formed on the rear side of the housing 10, and sucks the outside air from the front side front surface of the housing 10, And a second filter 82 for removing foreign substances is installed adjacent to the third driving fan 81. The second driving fan 81 is driven by the third driving fan 81 to drive the third driving fan 81 to the outside will be.

Here, the second filter 82 filters the foreign substances contained in the air discharged when the external air is sucked into the enclosure 10 by the third driving fan 81, Dust and the like other than the heat-exchanged air to the outside of the housing 10 can be prevented from scattering.

The opening and closing portions 90 are respectively formed on the front and back side front surfaces of the housing 10 and when the normal power is supplied, the opening portions 11 formed on the front and rear front portions of the housing 10 However, when the emergency power is supplied due to a power failure due to a power failure, the opening 11 may be opened when the second cooling unit 80 is operated to allow inflow and outflow of external air And includes a damper 91, a motor 92, and a limit switch 93. [0033]

The damper 91 is closed to block the opening 11 formed in the front and rear front portions of the housing 10 when the commercial power is supplied. However, when the emergency power is supplied due to the power failure, 2 cooling section 80 is operated.

The motor 92 is driven to rotate the damper 91 in accordance with the control operation of the second control unit 70.

The limit switch 93 is provided on the side of the opening 11 so as to detect the open or closed state of the damper 91 and output the detection information to the second control unit 70.

Accordingly, the second control unit 70 can check the open or closed state of the damper 91 according to the information detected by the limit switch 93. When the damper 91 is open, And the third driving fan 81 constituting the second cooling unit 80 can be driven and controlled.

As shown in FIGS. 1 to 9, when a commercial power source (AC 220V) is normally supplied to the housing 10 on which the equipment 100 is mounted, the cooling and heating system of the housing according to the embodiment of the present invention, The first temperature sensor 20 senses the temperature in the housing 10 and outputs the sensing information to the first controller 30. [

Then, the second controller 30 compares the sensed temperature with the reference temperature (30 degrees) to determine whether the deviation is within an allowable tolerance range (+/- 3 degrees), and as a result of the determination, The first cooling unit 40 or the heater unit 50 is operated to keep the temperature in the housing 10 constant at all times.

That is, when the temperature in the housing 10 rises above the reference temperature while heat is generated due to the operation of the equipment 100, the first driving fan 41 included in the first cooling unit 40 is operated The driving speed is variable according to the control operation of the first control unit 30 so that the outside air is forcibly sucked from the lower end side of the housing 10 and the forcibly sucked outside air is heat exchanged in the housing 10, Thereby cooling the hot air in the heat exchanger 10.

The second driving fan 42 provided at the upper end of the housing 10 forcibly discharges the heat-exchanged air in the housing 10 to the outside of the housing 10, The heat generated from the operation of the equipment 100 installed in the inside of the heat exchanger 10 can always be maintained at a constant temperature.

On the other hand, when the temperature of the housing 10 is lowered to the reference temperature or lower due to the external temperature, the heater unit 50 is operated to generate heat, Thereby raising the internal temperature of the heat exchanger 100.

On the other hand, when a power failure occurs, which interrupts the supply of commercial power normally supplied to the enclosure 10, the emergency power of DC is supplied to the enclosure 10.

The first control unit 30 stops the driving of the first cooling unit 40 and the second control unit 70 having the second communication module 71 through the first communication module 31, Communication is performed.

Then, the second controller 70 receives the sensed temperature information in the housing 10 from the second temperature sensor 60 while the emergency power is supplied.

In this case, when it is necessary to cool the inside of the housing 10 according to the temperature information sensed by the second temperature sensor 60, the second controller 70 preferably controls the opening / The motor 92 is driven and controlled so that the damper 91 rotates in the opening direction and the opening 11 formed on the front and rear front surfaces of the housing 10 is opened .

The opened state of the opening 11 is transmitted to the second control unit 70 by the limit switch 93 so that the second control unit 70 can control the third driving fan 81 as shown in FIG.

The external air is forcibly sucked from the front side front face of the housing 10 from the driving of the third driving fan 81 and then forcedly discharged to the outside through the rear side front face of the housing 10, The cooling of the equipment 100 in the enclosure 10 from the flow of the outside air can be performed quickly.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

10; Housing 11; Opening
20; A first temperature sensor 30; [0035]
31; A first communication module 40; The first cooling section
41, 42; A first and a second driving fan 43; The first filter
50; Heater portion 60; The second temperature sensor
70; A second control unit 71; The second communication module
72; DC-DC converter 80; The second cooling section
81; A third drive fan 82; The second filter
90; An opening / closing part 91; Damper
92; A motor 93; Limit switch
100; equipment

Claims

The main power source and the emergency power source are supplied, the equipment is installed inside, and the front and rear fronts are provided with openings;
A cooling / heating processor driven in accordance with a commercial power source supplied to the housing and operating in an operation mode of cooling or heating when a temperature difference within the housing is compared with a reference temperature; And
A cooling processing unit driven in accordance with an emergency power source supplied to the housing and operating in an operation mode of cooling when a temperature difference within the housing is compared with a reference temperature; And a cooling / heating unit for cooling / heating the enclosure.

The air conditioner according to claim 1,
A first temperature sensor formed in the housing for receiving the commercial power and sensing a temperature inside the housing;
A first controller receiving the commercial power and performing a control operation of cooling or heating according to a temperature sensed by the first temperature sensor;
And a second control unit for controlling the operation of the first control unit and the second control unit so that the first and second control units are connected to the first control unit and the second control unit, A first cooling part for cooling the first cooling part; And
A heater unit which is formed in the housing and is supplied with the commercial power and heats the housing in a heating operation according to a control operation of the first controller; And a cooling / heating unit for cooling / heating the enclosure.

The air conditioner according to claim 2,
A second temperature sensor formed in the housing for receiving the emergency power source and sensing a temperature inside the housing;
A second controller receiving the emergency power and performing control of cooling according to a temperature sensed by the second temperature sensor;
A second control unit for controlling the first control unit and the second control unit so that the first control unit controls the first control unit and the second control unit, A second cooling unit; And
And an opening formed in front and rear front portions of the housing are blocked, and when the second cooling portion is in operation, the opening is opened to open the outside air An opening / closing unit for allowing the inflow and outflow of the refrigerant; And a cooling / heating unit for cooling / heating the enclosure.

The refrigerator according to claim 2,
A first driving fan formed at the lower ends of the front and rear sides of the housing for driving the outside air to be sucked into the housing; And
A second driving fan formed at an upper end of a front side and a rear side of the housing and discharging air sucked by driving of the first driving fan and heat-exchanged with heat generated in the equipment to the outside of the housing; And the air conditioning system is configured to include the air conditioning system.

The cooling / heating system of claim 4, wherein the first and second driving fans are disposed adjacent to each other with a first filter for removing foreign substances.

5. The apparatus of claim 4, wherein the first controller compares a temperature of the inside of the vehicle, sensed by the first temperature sensor, with a set reference temperature, and increases / decreases a driving speed of the first and second driving fans And a control program is mounted on the housing.

The apparatus of claim 3, wherein the opening /
A damper for closing the openings formed in the front and rear front portions of the housing and performing an opening rotation when the second cooling portion is operated; And
A motor which is supplied with an emergency power source and drives the damper to rotate; And a cooling / heating unit for cooling / heating the enclosure.

8. The cooling / heating system of claim 7, wherein the opening portion is provided with a limit switch for detecting the open or closed state of the damper and outputting the limit switch to the second control unit.

4. The control apparatus according to claim 3, wherein the second control unit controls the second cooling unit to perform a control program for controlling the temperature of the inside of the vehicle and the open state of the damper from the limit switch when the second temperature is sensed by the first temperature sensor And the air conditioner is mounted on the housing.

The vehicle air conditioner according to claim 3, wherein the second cooling unit is formed on a rear side of the housing, and sucks outside air from a front side front surface of the housing and drives the air to be discharged to the outside of the housing through a rear side front surface And a plurality of third driving fans.

The cooling / heating system of claim 10, wherein a second filter for removing foreign substances is installed adjacently to the third driving fan.

The method of claim 3,
Wherein the first control unit is connected to the first communication module and mounted on the control board, the second control unit is connected to the second communication module and mounted on the control board,
Wherein the first and second control units are configured to communicate through the first and second communication modules.

13. The cooling / heating system of claim 12, wherein the control board on which the second controller is mounted is equipped with a DC-DC converter that converts the DC power supplied to the emergency power supply to a DC voltage of a predetermined level and outputs the DC voltage.