KR20020043083A - Thermal exchange apparatus in outdoor casing - Google Patents

Abstract

PURPOSE: A boxy heat exchanging device for outdoors is provided to prevent damage reduction of life of equipments in a boxy body due to moisture, dust, harmful gas and salt, etc., by completely blocking inflow of outside air. CONSTITUTION: A device includes a main body(18) of a heat exchanger; a heat plate(22); a partition(24); a cover(20); an inside air circulation device; an outside air circulation device; and a control device. The heat plate is installed on a central part of an inside of the main body. The partition is installed between the heat plate and an inside surface of the main body to separate an inside air passage and an outside air passage. The cover is put on a front surface of the main body. The inside air circulation device is installed on one sides of the main body and the cover to take in air in a boxy body into the main body and discharge via the inside air passage and the heat plate to the inside of the boxy body. The outside air circulation device is installed on the other sides of the main body and the cover to take in air outside the boxy body into the main body and discharge via the outside air passage and the heat plate to the outside of the boxy body. The control device controls driving of the inside air circulation device and the outside air circulation device.

Description

Outdoor enclosure heat exchanger {THERMAL EXCHANGE APPARATUS IN OUTDOOR CASING}

The present invention relates to an outdoor enclosure heat exchanger, and in particular, by designing a structure that completely blocks the inflow of external air to solve the failure and shortening the life of equipment in the enclosure due to moisture, dust, harmful gas and salt, etc. The present invention relates to an outdoor enclosure heat exchanger that can maintain an appropriate temperature by allowing heat exchange in an enclosure to be properly performed through an efficient flow path design means.

Conventional optical repeater has a small data volume and communication is performed at low frequency with low frequency, so it has relatively low heat loss. Therefore, heat dissipation is not a problem even if it is designed as heat sink. The heat dissipation by conventional heat sinks is in a limiting condition due to the extremely high frequency of the furnace frequency and high integration and compact weight reduction of communication equipment. The techniques used are being proposed.

Referring to Figure 1 the outdoor enclosure according to the prior art as follows.

In addition to the base station internal system for providing actual service, the outdoor base station includes an external enclosure 70 for insulating the internal system and protecting it from external destructive factors, and the enclosure for maintaining the internal temperature of the system within a certain range. On the upper surface of the heat exchanger 72 and the heat exchanger 72 disposed on the upper portion of the heat exchanger 72 so that the air inside the housing 70 is discharged out and the air outside the housing 70 is sucked in. It is composed of the air suction and discharge port 74 formed.

A door 78 having a handle 76 is rotatably installed on one side of the enclosure 70 to allow maintenance and repair work inside the system, and between the heat exchanger 72 and the enclosure 70. D-Gasket (D-Gasket) (80) for the waterproof and rainproof between the system and the heat exchanger (72) is installed, the lower end of the housing 70 for laying cables (not shown) of the system Plinth 82 is installed.

Looking at the operation of the conventional technology configured as described above are as follows.

Temperature is detected using a temperature sensor (not shown) installed on one side of the enclosure 70, and when the detected temperature rises above a set temperature, an internal air discharge fan and / or an external air suction fan (not shown). And heat exchanged through a heat plate (not shown) of the heat exchanger 72 to maintain a constant temperature inside the system.

However, in the conventional technology, the fan is a forced cooling method to attach a cooling device, but in this case, the inflow of external air causes moisture, dust, harmful gas, salt, etc., depending on the use environment, causing the failure of the equipment, There is a problem of shortening the life and reducing the reliability.

Therefore, the present invention is to design a structure that completely blocks the inflow of external air to solve the failure and shorten the life of equipment in the enclosure due to moisture, dust, harmful gas and salt, etc. to further improve the quality, efficient flow path The purpose of the present invention is to properly maintain the temperature in the enclosure by making heat exchange in the enclosure appropriately through the design means.

According to an aspect of the present invention, there is provided an outdoor enclosure heat exchanger disposed on one side of a enclosure to maintain a temperature within a certain range, the main body of the heat exchanger, a heat plate provided at an inner central portion of the main body, A partition wall disposed between the heat plate and the inner surface of the main body to separate the internal air flow path and the external air flow path from each other; Internal air circulation means for sucking into the main body and then discharged back into the enclosure via the internal air flow path and the heat plate, and installed on the other side of the main body and the cover to suck the air outside the enclosure into the main body, and then to the external air flow path and External air circulation means for discharging to the outside of the enclosure again through the heat plate, the internal air circulation means and the external air circulation water A is configured to include a control means for controlling the drive.

1 is a perspective view showing an outdoor enclosure according to the prior art.

2 is a perspective view showing an outdoor enclosure according to the present invention.

Figure 3 is a perspective view showing the interior of the outdoor housing according to the present invention.

Figure 4 is a side view showing the air flow inside and outside the outdoor enclosure according to the present invention.

5 is a perspective view showing a state of the heat exchanger according to the present invention as viewed from the inner side thereof;

Figure 6 is a perspective view showing a state of the heat exchanger according to the present invention as viewed from the outer side.

7 is a perspective view showing the inside of a heat exchanger according to the present invention;

8 is a perspective view showing a heat plate of a heat exchanger according to the present invention;

9 is an exploded perspective view showing a heat plate of a heat exchanger according to the present invention.

10 is a circuit diagram showing a heat exchanger according to the present invention.

<Description of the symbols for the main parts of the drawings>

2: enclosure 4: door 6: heat exchanger

8: Flynn 10: Internal air intake 12: Internal air exhaust

14: Outside air intake 16: Outside air outlet 18: Main body

20: cover 22: heat plate 24: bulkhead

26: outside air suction space 28: outside air discharge space 30: inside air suction space

32: internal air discharge space 34: the first temperature sensor 36: the second temperature sensor

38: heater 40: fan error signal detection means 42: control panel

44: power switch 46: lamp 48: internal fan

50: external fan 52: aluminum plate 54, 56: euro guide protrusion

58: Fixed piece 60: Error signal detection part 62: Signal generating circuit part

64: controller

These objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description. In addition, this embodiment is only illustrative for the purpose of understanding and is not intended to limit the present invention.

FIG. 2 is a perspective view showing the outdoor enclosure 2 according to the present invention, and FIG. 3 is a perspective view showing the interior of the enclosure 2 by opening the door 4 of the outdoor enclosure 2 according to the present invention. As shown, the present invention is rotatable so that the internal enclosure (2) to insulate the internal system and protect it from external destructive factors, and the maintenance and repair work inside the system on the front of the enclosure (2) A door 4 installed, a heat exchanger 6 disposed vertically on an inner surface of the door 4 of the enclosure 2 to maintain an internal temperature of the system within a predetermined range, and the enclosure 2 It consists of a plinth 8 installed at the lower end of the system for laying cables (not shown) of the system.

Figure 4 shows a side view showing the internal and external air flow of the outdoor enclosure (2) according to the present invention, the air inside the outdoor enclosure (2) is an internal air intake (10) formed on the upper inner surface of the heat exchanger (6) Inhaled through), and is discharged through the internal air outlet 12 formed in the lower inner side of the heat exchanger 6, the air outside the outdoor enclosure (2) is formed outside the outer side of the heat exchanger (6) It is sucked through the air inlet 14 and is discharged through the outside air outlet 16 formed on the outer surface of the heat exchanger (6).

5 is a perspective view showing a state of the heat exchanger 6 according to the present invention as viewed from the inner side, and FIG. 6 is a perspective view showing a state of the heat exchanger 6 according to the present invention as viewed from the outer side thereof. As described above, the internal air intake port 10 is disposed at the upper right side of the inner side of the heat exchanger 6, and the internal air outlet 12 is disposed at the lower left side of the inner side of the heat exchanger 6, and the heat exchanger ( The outside air inlet 14 is disposed at the lower left side of the outer side of 6), and the outside air outlet 16 is disposed at the upper right side of the outer side of the heat exchanger 6.

On the other hand, the heat exchanger 6 may be disposed vertically on the front of the housing 2, but may be disposed horizontally on the upper surface of the housing (2).

7 is a perspective view showing the inside of the heat exchanger 6 according to the present invention. As shown in the drawing, the heat exchanger 6 includes a box-shaped body 18 and an upper portion of the body 18. It consists of a cover 20 which is overlaid on.

A heat plate 22 formed in a diamond shape is installed at an inner center of the body 18 in consideration of a heat transfer area, and the heat plate 22 is formed between the heat plate 22 and the body 18. Between the four corners of the inner surface of the body 18 and the internal air flow path and the external air flow path partition wall 24 is formed so as to separate from each other.

An external air suction opening 14 is formed at the lower right side of the main body 18, and an external air suction space 26 provided by the periphery of the lower right end of the main body 18 and the partition 24 is formed. An external air discharge port 16 is formed at the upper left of 18, and an external air discharge space 28 provided by the upper left periphery of the main body 18 and the partition 24 is formed.

Subsequently, an internal air suction space 30 provided around the upper right end of the main body 18 and the partition 24 is formed at the upper right end of the main body 18, and the main lower end of the main body 18 is formed at the lower left end of the main body 18. An inner air exhaust space 32 provided around the lower left end of the 18 and the partition 24 is formed, and first and second temperature sensors 34 and 36 are provided at one side of the inner air suction space 30. Is installed, the heater 38 is installed on one side of the internal air discharge space 32, the fan abnormal signal detection means 40 is installed in the partition 24 disposed on the right corner of the heat plate 22. do.

In addition, a control panel 42 provided with a controller 64 is disposed on an outer surface of one side of the main body 18, and the power switch 44 and a lamp connected to the controller 64 are disposed on the control panel 42. 46 is installed.

Subsequently, when the cover 20 is opened from the main body 18, the inner fan 48 is mounted at the upper left side of the cover 20, and the outer fan 50 is disposed at the lower left side of the cover 20. It is mounted, the inner air outlet 12 is formed in the lower right portion of the cover 20.

The inner fan 48 and the outer fan 50 are designed in consideration of the thickness, heat dissipation area, static pressure, wind speed, air volume, life of the heat plate 22, the voltage can be set to AC or DC fan, outdoors It can be installed as well as indoor type, and in that case, general type or waterproof type can be selected and used.

8 is a perspective view showing the heat plate 22 of the heat exchanger 6 according to the present invention, and FIG. 9 is an exploded perspective view showing the heat plate 22 of the heat exchanger 6 according to the present invention. As shown in the drawing, the heat plate 22 is manufactured in diamond shape in consideration of the heat transfer area, and is formed by stacking a thin aluminum plate 52. At this time, in accordance with the heat dissipation capacity, in consideration of the static pressure and the air flow is laminated at a constant interval, for example, 4mm, the heat transfer characteristics are determined by the size and thickness of the aluminum plate 52, the post-treatment (super-thermal coating) and the positive pressure.

In the lamination method of the heat plate 22, the internal air and the external air flow paths are separated and laminated, respectively, as shown in FIG. 9, the aluminum plate 52 having the flow path guide protrusion 54 in one direction and the flow path guide in the other direction. The aluminum plates 52 having the protrusions 56 formed thereon are alternately stacked to distinguish flow paths, and after the aluminum plates 52 are laminated, the fixing pieces 58 are fastened to the corners of the aluminum plates 52. To fix it.

10 is a circuit diagram showing the heat exchanger 6 according to the present invention. In particular, the fan abnormality signal detecting means 40 will be described. The fan abnormality signal detecting means 40 is an abnormal signal detecting part ( 60, and the signal generation circuit section 62.

The abnormal signal detection unit 60 detects an overload current by a current sensor. When the fan is shorted or forcibly stopped by an external factor, the abnormal signal detection unit 60 detects this current when an overcurrent flows due to an overload condition. Will be sent). This signal provides a control power supply and an abnormal signal to the signal generating circuit portion 62 composed of an OP-amp, a resistor, a capacitor, and the like, and the signal generating circuit portion 62 outputs the abnormal signal to DC 8 to 9V. It is possible to provide a signal in (遠方).

Referring to the operation and effect of the outdoor enclosure heat exchanger according to the present invention configured as described above are as follows.

First, when the power switch 44 configured in the control panel unit 42 is turned on by a user's operation, the controller 64 determines whether the power switch 44 is turned on based on the transmitted information, and drives power. The inner fan 48 is continuously driven by being supplied to the inner fan 48.

Accordingly, the internal air of the housing 2 having the elevated temperature is sucked into the internal air suction space 30 through the internal air suction port 10, and the sucked internal air passes through the internal air flow path of the heat plate 22. The heat of the internal air is absorbed, and the cooled air is discharged to the internal air outlet 12 through the internal air discharge space 32, so that the air temperature inside the enclosure 2 is displaced within an appropriate temperature range of 10 ° C-20. It is maintained appropriately within the ℃. (In other words, when the ambient temperature is about 40 ℃, the internal air temperature is maintained at 50 ℃ -60 ℃.)

On the other hand, when the internal temperature of the enclosure 2 is increased by the heat absorbed by the heat plate 22 or in the summer when the temperature rises sharply, the second temperature sensor 36 detects the internal temperature. When detected at -40 ° C. or higher, the second temperature sensor 36 is turned on to drive the external fan 50 by supplying driving power to the external fan 50.

Accordingly, the outside air is sucked into the outside air intake space 26 through the outside air intake 14, and the sucked air passes through the outside air flow path of the heat plate 22, and the outside air is heated by the heat plate ( By absorbing the heat conducted in 22) and discharging it to the external air discharge port 16 through the external air discharge space 28, the temperature inside the enclosure 2 can be appropriately within the displacement amount within 10 ° C-20 ° C. And the second temperature sensor 36 is turned off so that the external fan 50 stops driving (ie, when the ambient temperature is about 40 ° C, the internal air temperature is 50 ° C-60 ° C). Is maintained.)

On the other hand, when the temperature inside the enclosure 2 detected by the first temperature sensor 34 is 4 ° C. or less due to a rapid temperature drop in winter, the first temperature sensor 34 is turned on to drive the driving power. 38) and heat is generated by operating the heater 38 at the same time.

In addition, the inner air of the enclosure 2 is absorbed by the driving of the inner fan 48 through the inner air suction opening 10 to the inner air suction space 30, and the endothermic air is transferred to the heat plate 22. By passing through, an appropriately elevated temperature is discharged to the internal air discharge port 12 through the internal air discharge space 32 so that the temperature in the enclosure 2 is maintained at 10 ° C-20 ° C.

At this time, the first temperature sensor 34 is turned off to cut off the power supply to the heater 38.

Meanwhile, referring to the circuit diagram shown in FIG. 10, when the power switch 44 is turned on, driving power is supplied to connect the internal fan 48 to be driven, and the first temperature sensor 34 is connected to the enclosure 2. ) When the internal temperature is detected to be 4 ° C. or lower, the heater 38 is turned on to operate the heater 38.

In addition, the second temperature sensor 36 is connected to the power switch 44 so that when the internal temperature of the enclosure 2 is detected at 30 ° C.-40 ° C. or more, the power switch 44 is turned on so that the external fan 50 is operated.

On the other hand, when the internal fan 48 and the external fan 50 are shorted due to long use or forced to stop due to external factors, the abnormal signal detection means 40 detects an abnormal signal. As shown in FIG. 10, the abnormal signal detection unit 60 detects an overcurrent input through the internal fan 48 and the external fan 50, and rectifies the AC overcurrent input from the abnormal signal detection unit 60 to rectify the signal. Is transmitted to the signal generation circuit unit 62 to output the abnormal signal at a level of DC 8-9V. At this time, the controller 64 continuously checks the output state of the abnormal signal detection unit 60 while the power switch 44 is turned on, and when the abnormal signal is generated, the central control system remotely monitors the abnormal signal. A sensing or monitoring system can sense and be found through the signal of lamp 46.

The central control system is a system for supporting a user to form a call line using a mobile communication terminal.

The present invention by designing a structure that completely blocks the inflow of external air, to solve the failure and shortening the life of equipment in the enclosure due to moisture, dust, harmful gas and salt, etc. to improve the product further, through an efficient flow path design means By appropriately performing heat exchange in the enclosure, it is possible to maintain an appropriate temperature in the enclosure.

Claims (10)

In the outdoor enclosure heat exchanger disposed on one side of the enclosure to maintain the temperature inside the enclosure to a certain range, A main body of the heat exchanger, A heat plate installed at an inner center of the main body, A partition wall disposed between the heat plate and the inner surface of the main body to separate the internal air flow path and the external air flow path from each other; A cover covered on the front of the main body, An internal air circulation means installed at one side of the main body and the cover to suck the air inside the main body into the main body and discharge the air back into the main body through the internal air flow path and the heat plate; An external air circulation means installed on the other side of the main body and the cover to suck the air outside the enclosure into the main body and then discharge the external air through the external air flow path and the heat plate to the outside of the enclosure; Outdoor enclosure heat exchanger comprising a control means for controlling the operation of the internal air circulation means and the external air circulation means. The method of claim 1, wherein the heat plate Aluminum sheet is laminated in several layers, Between the aluminum sheet is formed by alternately arranging the flow path guide projection of the one direction forming the internal air flow path and the flow path guide projection of the other direction forming the external air flow path, An outdoor enclosure heat exchanger, characterized in that the fixing piece is fastened to the edge of the laminated aluminum sheet to fix the aluminum sheet. The method of claim 1, wherein the partition wall, The upper, lower and upper and lower inner surfaces of the heat plate are connected to each other, Both sides of the heat plate and the inner surface of the both sides of the main body is connected to each other, characterized in that the internal air flow path and the external air flow path is formed in a diagonal direction. According to claim 1, wherein the internal air circulation means, An internal air suction port formed at one side of the upper portion of the cover and communicating with an upper portion of the internal air passage; An internal fan installed at a rear side of the internal air suction port and forcibly sucking air in the enclosure; And an inner air discharge port formed at the other side of the lower portion of the cover and communicating with a lower portion of the inner air flow path. The outdoor heat exchanger of claim 4, wherein a temperature sensor connected to a control means is installed at one side of the internal air passage. 5. The outdoor heat exchanger of claim 4, wherein a heater connected to a control means is mounted at one side of the internal air passage. According to claim 1, wherein the external air circulation means, An external air intake port formed at one lower side of the main body and communicating with a lower portion of the external air flow path; An outer fan installed at one side of the lower portion of the cover to forcibly suck air from the outside of the enclosure through the outer air inlet; An outdoor air box heat exchanger formed on an upper side of the main body and configured to include an external air discharge port communicating with an upper portion of the external air flow path. The outdoor enclosure heat exchanger according to claim 1, wherein a fan abnormality signal detecting means connected to a control means is installed at one side of the main body. The method of claim 8, wherein the fan error signal detecting means An abnormal signal detector for detecting an overcurrent in an overload state by a current sensor; An outdoor enclosure heat exchanger comprising: a signal generation circuit unit for outputting the detected abnormal signal to provide a signal in a distant direction. The method of claim 1, wherein the control means A control panel unit provided with a controller on one side of the main body, A power switch installed at one side of the control panel unit; An outdoor enclosure heat exchanger is installed on the other side of the control panel unit and comprises a lamp which is controlled to flash by a controller.