JP2010091231A - Cooler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the lowering of a quantity of air circulated in a heat generating component cabinet, and the deterioration of a cooling capacity of a cooler, and to improve heat exchange efficiency. <P>SOLUTION: In the cooler having a heat exchanger 16 in a middle region of a body shell 13, an outside air blower 14 in a lower region, and an inside air blower 15 and a controller storage part 18 storing a controller 17 in an upper region, the controller storage part 18 is arranged at a side of a rotary shaft of the inside air blower 15 where a rotational tangent to the inside air blower 15 is oriented toward an inside air inlet 24 of the heat exchanger 16. Air passage resistance is imparted to only a side of a smooth inflow into the inside air inlet 24 where discharge air from the inside air blower 15 is directly oriented toward the heat exchanger 16, so that the discharge air from the inside air blower 15 flows into the heat exchanger 16 uniformly throughout the inside air inlet 24. This can reduce the lowering of the quantity of air circulated in a heat generating component cabinet 4 and the deterioration of the cooling capacity of the cooler caused by the installation of the controller 17 in the cooler, and can improve the heat exchange efficiency of the heat exchanger. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is a box structure that is installed outdoors and has a heating element such as an electronic component inside, which generates a large amount of heat, requires cooling even in winter, and has a large performance and life depending on the temperature. The present invention relates to a cooling device for a heating element storage box having a precise device that is affected.

  In recent years, higher performance of electronic components and higher density of electronic components with respect to the control board have progressed, and the amount of heat generated from the control board has increased dramatically. Along with this, the temperature in the heating element storage box tends to rise, and the operation guarantee and product life of the electronic components on the control board are greatly affected by the temperature in the heating element storage box. For this reason, unless the temperature inside the heating element storage box is cooled below a certain level, reliability cannot be ensured.

  Conventionally, this type of cooling device has been controlled to keep the temperature inside the heating element storage box constant, and it is desired to achieve both sufficient cooling capacity corresponding to an increasing amount of heat generation and low input. (See, for example, Patent Document 1).

  Hereinafter, the cooling device will be described with reference to FIG.

As shown in FIG. 18, the cooling device has the following configuration, for example, in order to be attached to the wall surface of the heating element storage box. In other words, a main body outline having an outside air inlet 101 for outside air, an outside air outlet 102, an inside air inlet 105 for air in a heating element storage box 104 containing a transmitter / receiver 103, and an inside air outlet 106. 107, an outside air blower 108 for outside air in the main body shell 107, an inside air blower 109 for air in the heating element storage box 104, and outside air and air in the heating element storage box 104 in the main body casing 107. The heat exchanger 110 that performs heat exchange with the control device and the control device housing portion 112 that houses the control device 111 for controlling the outside air blower 108 and the inside air blower 109 are provided.
JP 2000-161875 A

  In recent years, in order to efficiently operate the cooling device, a cooling device having a control device for controlling the operation of the outside air blower and the inside air blower has been developed, but the cooling device control device avoids wind and rain and dust. Therefore, it must be installed near the inside air blower, and depending on the arrangement and shape of the control device, the circulation air volume in the heating element storage box may be reduced and the air flow to the heat exchanger may be biased, reducing the cooling capacity. there's a possibility that.

  Also, the control device of the cooling device is a precision device similar to the electronic components and the like in the heating element storage box, and generates heat and becomes a high temperature state. Therefore, the control device itself needs to be cooled.

  The present invention solves such a conventional problem, and can reduce a reduction in circulating air volume in the heating element storage box and a cooling capacity of the cooling device by mounting the control device in the cooling device, Another object of the present invention is to provide a cooling device that can improve the heat exchange efficiency of the heat exchanger and can also cool the control device itself of the cooling device.

  In order to achieve the above object, the cooling device of the present invention has the control device housing portion disposed on the side where the tangential direction of the rotation direction of the internal air blower faces the internal air flow inlet of the heat exchanger with respect to the rotation shaft of the internal air blower. It is a thing.

  By this means, there is no air path resistor on the side where the air discharged from the internal air blower does not go to the internal air flow inlet of the heat exchanger, and the air discharged from the internal air blower is uniformly flowed into the heat exchanger for cooling. By mounting the control device on the device, a cooling device can be obtained that can reduce a reduction in circulating air volume and a reduction in cooling capacity in the heating element storage box.

  Another means is that the control device accommodating portion is arranged with a space between the internal air flow inlet of the heat exchanger.

  By this means, the discharge air from the inside air blower can easily flow into the heat exchanger directly below the control device housing, and the entire heat transfer area of the heat exchanger can be used effectively, and the heat exchange efficiency of the heat exchanger can be improved. A cooling device that can be improved is obtained.

  Further, another means is that the outside air blower and the inside air blower are configured such that the respective rotation shafts are intermediate between the external air flow inlet and the internal air flow inlet of the heat exchanger and the surface facing the external air flow inlet and the internal air flow inlet of the main body outline. It is installed on the side farther from the heat exchanger than the surface.

  By this means, it is possible to reduce the inflow resistance when the discharged air from the inside air blower and the outside air blowing air flows into the heat exchanger, thereby reducing power consumption and noise generated from the inside air inlet and the outside air inlet. A cooling device capable of achieving the above is obtained.

  Another means is that at least one slit serving as a ventilation opening is disposed on the surface of the control device housing portion on the side of the inside air blower.

  By this means, it is possible to cool the control device of the cooling device with the discharge air from the inside air blower, and to obtain a cooling device that can stably operate the control device without using other heat radiating means.

  Another means is that a slit serving as an exhaust port is arranged on the surface of the control device housing portion on the side of the heating element housing box.

  By this means, the temperature of the air flowing into the heat exchanger becomes uniform throughout the inner airflow inlet of the heat exchanger, and a cooling device that can improve the heat exchange efficiency of the heat exchanger is obtained.

  Another means is that a slit serving as an exhaust port is provided on the surface of the control device housing portion facing the air flow inlet.

  By this means, a cooling device capable of reducing a decrease in the circulating air volume in the heating element storage box is obtained.

  Further, the other means inclines at least a part of the surface on the side of the inside air blower of the control device housing portion in a direction away from the inside air blower so that the volume of the control device housing portion decreases toward the inside air flow inlet. It is a thing.

  By this means, the discharge air from the inside air blower is likely to flow uniformly into the whole at the inside air flow inlet, the entire heat transfer area of the heat exchanger can be effectively used, and the heat exchange efficiency of the heat exchanger is improved. A cooling device is obtained.

  Another means is that at least a part of the surface of the control device housing portion facing the inside air blower is formed as a curved surface.

  By this means, the outer shell of the control device housing portion is also used as a blow assisting member that smoothly promotes the discharge air of the indoor air blower to the internal air flow inlet, so that the discharge air from the internal air blower is uniformly distributed throughout the internal air flow inlet. It becomes easy to flow in, and the entire heat transfer area of the heat exchanger can be used effectively, and a cooling device that can improve the heat exchange efficiency of the heat exchanger is obtained.

  Further, the other means is that the control device accommodating portion is arranged along the outer shell of the main body, and the tangential direction of the air discharged from the inner air blower of the outer shell of the main body with respect to the rotation direction of the inner air blower is directed to the inner air flow inlet of the heat exchanger This is divided into at least two of the above-mentioned surface, the surface facing the inside air inlet of the outer shell of the main body, and the surface facing the inner air inlet of the outer shell of the main body.

  By this means, it is possible to obtain a cooling device that can make a large gap between the control device housing portion and the inside air blower, reduce air blowing loss, and reduce power consumption.

  Another means is to provide a casing member around the inside air blower.

  By this means, since the discharge air from the inside air blower can be smoothly promoted to the inside air flow inlet of the heat exchanger, a cooling device that can reduce the air loss and reduce the power consumption can be obtained.

  Further, the other means is provided with a heat radiating member that thermally connects the control device in the control device housing section and the outer shell of the main body and radiates heat of the control device of the cooling device to the outside air environment outside the main body. .

  By this means, a cooling device that can radiate the heat of the control device of the cooling device to the outside air environment outside the main body and improve the heat exchange efficiency of the heat exchanger can be obtained.

  Another means is that the control device of the cooling device is arranged perpendicular to the rotation axis direction y of the inside air blower in the control device housing portion.

  By this means, the pressure loss in the control device housing can be reduced, so that the power consumption of the cooling device is reduced, and the air flows along the surface of the control device of the cooling device, thereby efficiently cooling the control device of the cooling device. Therefore, a cooling device that can stably perform operation of the control device of the cooling device is obtained.

  Another means is to provide a movable plate that can variably control its size at the ventilation opening.

  By this means, it is possible to minimize the air volume of the discharged air from the inside air blower introduced for cooling the control device into the control device housing section, so that the amount of circulating air in the heating element storage box can be reduced. Since the reduction can be reduced and the size of the ventilation port can be variably controlled in accordance with the operating state of the cooling device, a cooling device capable of stably operating the control device is obtained.

  Another means is to provide a louver that separates the inside air intake port and the exhaust port from the exhaust port provided on the surface of the main body outer wall on the side of the heating element storage box.

  By this means, after the discharge air of the inside air blower introduced from the ventilation port to the control device housing part is exhausted from the exhaust port into the heating element storage box, a short circuit to the inside air intake port is prevented and the exhaust air is exhausted. The cooling air of the control device housing portion exhausted from the opening is sufficiently diffused into the atmosphere inside the heating element storage box and then sucked in from the inside air intake port, so that the temperature of the air flowing into the heat exchanger is Thus, a cooling device that is uniform throughout and can improve the heat exchange efficiency of the heat exchanger is obtained.

  Another means is that an auxiliary fan is provided at the ventilation port to encourage introduction of air discharged from the inside air blower.

  By this means, cooling of the control device can be promoted, a decrease in the circulating air volume in the heating element storage box can be reduced, and a cooling device capable of stably operating the control device can be obtained.

  According to the present invention, the discharge air of the inside air blower is uniformly flown into the heat exchanger, and the control unit is mounted on the cooling device. And the cooling device which can improve the heat exchange efficiency of a heat exchanger is obtained.

  In addition, it is possible to reduce the inflow resistance when the discharged air from the inside air blower and the outside air blower flows into the heat exchanger, and the discharged air from the inside air blower and the outside air blower collides with the main body outer shell and the control device housing portion. By reducing the blowing loss caused by the above, a cooling device that can reduce power consumption and noise generated from the inside air inlet and the outside air inlet can be obtained.

  In addition, by efficiently cooling the control device of the cooling device, a cooling device that can stably operate the control device is obtained.

  The invention according to claim 1 of the present invention is a heat exchanger that is attached to a heating element storage box and that exchanges heat between the outside air and the inside air with a heat transfer plate sandwiched in the center of a box-shaped outer shell, and the heating element An inside air outlet that blows out air that has undergone heat exchange into the storage box, an outside air outlet that blows out outside air that has undergone heat exchange to the outside, an outside air inlet that sucks outside air into the lower portion of the heat exchanger, and the outside air inlet. An outside air blower for sending outside air to the heat exchanger, an inside air inlet for sucking air in the heating element storage box at the top of the heat exchanger, and an inside air for sending inside air from the inside air inlet to the heat exchanger A blower, and a control device accommodating portion that accommodates a control device that controls the operation of the inside air blower and the outside air blower, and the heat exchanger has an external air flow inlet at the bottom, an internal air flow inlet at the top, It has an outside air outlet on the surface and an inside air outlet on the surface on the heating element storage box side. Disposing from the inside air blower by disposing a control device accommodating portion serving as an air path resistor on the side where the tangential direction of the air discharged from the inside air blower faces the inside air flow inlet of the heat exchanger There is no air path resistance on the side where it is difficult for air to flow into the previous air flow inlet where the air does not go directly to the heat exchanger, and the air discharged from the internal air blower directly enters the previous air flow inlet directly toward the heat exchanger. Since it becomes an air passage having an air passage resistor only on the side where it easily flows, the discharge air from the internal air blower uniformly flows into the entire internal air flow inlet, and the control device is mounted. It is possible to reduce a decrease in circulating air volume in the heating element storage box and a decrease in cooling capacity of the cooling device.

  According to a second aspect of the present invention, a space is provided between the control device housing portion and the internal air flow inlet of the heat exchanger, and pressure loss is reduced immediately below the control device housing portion, so that the heat exchanger is provided. Therefore, the air discharged from the inside air blower can easily flow into the heat exchanger immediately below the control device housing portion, and the entire heat transfer area of the heat exchanger can be effectively used. The heat exchange efficiency of the exchanger can be improved.

  The invention according to claim 3 is the outside air blower and the inside air blower, and the respective rotary shafts face the external air flow inlet and the internal air flow inlet of the heat exchanger, and the external air flow inlet and the internal air flow inlet of the main body outline. Air that is installed on the side farther from the heat exchanger than the intermediate plane with the surface to be discharged, and is discharged from the outside air blower and the inside air blower at the uppermost end of the outside air blower and the lowermost end of the inside air blower The tangential direction is parallel to the external air flow inlet and the internal air flow inlet of the heat exchanger, and it is difficult for the air discharged from the external air blower and the internal air blower to flow into the heat exchanger. The clearance between the outside air blower and the inside air blower and the heat exchanger is increased so that the air discharged from the outside air blower and the inside air blower is transferred to the heat exchanger. In order to obtain a space that is only perpendicular to the outer airflow inlet and the inner airflow inlet before the air flows in, the inflow when the discharged air from the internal air blower and the external air blower flows into the heat exchanger Resistance can be reduced, power consumption of the cooling device can be reduced, and noise generated from the inside air inlet and the outside air inlet can be reduced.

  According to a fourth aspect of the present invention, at least one slit serving as a ventilation opening is provided on a surface of the control device housing portion on the side of the inside air blower, and the discharge air from the inside air blower is supplied to the inside of the control device housing portion. Since the cooling device controller can be cooled by the air discharged from the inside air blower, the operation of the controller of the cooling device can be stably performed without using other heat radiation means. .

  Further, the invention according to claim 5 is that a slit serving as an exhaust port is disposed on the surface of the control device housing portion on the side of the heating element housing portion, and the discharge from the inside air blower introduced into the control device housing portion. Air can be exhausted into the heating element storage box through the exhaust port, and air that has cooled the inside of the control device storage portion is prevented from flowing into the heat exchanger, so that the air discharged from the internal air blower is Since only direct inflow occurs, the temperature of the air flowing into the heat exchanger becomes uniform throughout the inner airflow inlet of the heat exchanger, so that the heat exchange efficiency of the heat exchanger can be improved.

  According to a sixth aspect of the present invention, a slit serving as an exhaust port is disposed on a surface of the control device housing portion that faces the internal air flow inlet, and the discharge air from the inside air blower introduced into the control device housing portion. Can be circulated from the exhaust port to the internal air flow inlet of the heat exchanger, so that the reduction of the circulating air volume in the heating element storage box can be reduced.

  According to a seventh aspect of the present invention, at least a part of the surface of the control device housing portion on the side of the inside air blower is arranged so that the volume of the control device housing portion decreases toward the internal airflow inlet of the heat exchanger. The discharge air from the inside air blower is inclined in a direction away from the inside air blower, and the internal airflow of the heat exchanger is also directly below the control device housing portion due to the inclination of the surface on the inside air blower side of the control device housing portion. Since it becomes easy to flow into the inlet, the discharge air from the inside air blower is likely to flow uniformly into the entire inside air flow inlet, and the entire heat transfer area of the heat exchanger can be effectively used, and heat exchange The heat exchange efficiency of the vessel can be improved.

  In the invention according to claim 8, at least a part of the surface of the control device housing portion facing the inside air blower is formed as a curved surface, and the outer shell of the control device housing portion draws the discharge air of the inside air blower. Since it is also used as a blow assisting member that smoothly promotes to the internal airflow inlet of the heat exchanger, it becomes easy to flow into the internal airflow inlet of the heat exchanger even immediately under the control device housing part. Therefore, the discharge air from the internal air blower However, it becomes easy to uniformly flow into the whole air flow inlet, and the entire heat transfer area of the heat exchanger can be used effectively, and the heat exchange efficiency of the heat exchanger can be improved.

  According to the ninth aspect of the present invention, the control device accommodating portion is arranged along the outer shell of the main body, and the tangential direction of the discharged air from the inner air blower of the outer shell of the main body is in the direction of the internal air flow of the heat exchanger It is divided into at least two surfaces of a surface facing the inlet, a surface facing the inside air inlet of the main body outer shell, and a surface facing the inner air flow inlet of the main body outer shell, Since the degree of freedom of the shape of the control device housing portion is increased, a gap between the control device housing portion and the inside air blower can be made large, and the discharged air from the inside air blower collides with the main body outline and the control device housing portion. The ventilation loss which arises by this can be reduced, and the power consumption of a cooling device can be reduced.

  The invention according to claim 10 is the one in which a casing member is provided around the inside air blower, and the air discharged from the inside air blower is heat exchanged along the tangential direction of the air discharged from the inside air blower. Because the air flow from the inside air blower collides with the outer shell of the main body and the control device housing part, it is possible to reduce the air loss and reduce the power consumption of the cooling device. .

  According to an eleventh aspect of the present invention, there is provided a heat dissipating member that thermally connects the control device in the control device housing portion and the outer shell of the main body and dissipates heat of the control device of the cooling device to the outside air environment outside the main body. The heat radiation member can radiate the heat generated from the control device to the outside air environment outside the main body through the outer shell of the main body, so that the cooling capacity required for cooling the control device of the cooling device It is possible to reduce the decrease in cooling capacity for cooling the air in the heating element storage box.

  According to a twelfth aspect of the present invention, the control device of the cooling device is arranged perpendicular to the rotation axis direction of the inside air blower in the control device housing portion, and is introduced into the control device housing portion from the ventilation port. Since the flow direction of the discharge air from the inside air blower is parallel to the control device, it is possible to reduce the air loss caused by the collision between the discharge air from the inside air blower and the control device. Power consumption can be reduced, and cooling air can flow efficiently along the surface of the control device, so that the control device can be efficiently cooled. be able to.

  According to the thirteenth aspect of the present invention, a movable plate whose size can be variably controlled is provided at the vent of the control device housing portion, and the amount of heat generated by the control device varies depending on the operating conditions of the outside air blower and the inside air blower. The discharge from the inside air blower introduced for cooling the control device into the control device accommodating portion by variably controlling the size of the vent according to the air volume of the discharge air from the inside air blower. Since the air volume of the air can be reduced to the minimum necessary, it is possible to reduce a decrease in the circulating air volume in the heating element storage box and to stably operate the control device.

  According to a fourteenth aspect of the present invention, a louver that separates the inside air intake port from the exhaust port is provided on the exhaust port provided on the surface of the main body outer wall on the side of the heating element storage box. For this reason, after the discharged air from the inside air blower introduced into the control device housing portion is exhausted from the exhaust port into the heating element storage box, it does not sufficiently diffuse into the atmosphere inside the heating element storage box. By short-circuiting to the inside air intake port, a part of the circulating air volume in the heating element storage box is prevented from becoming a circulating air volume for cooling in the control device storage section, and the cooling capacity is reduced. The temperature of the air flowing into the heat exchanger when the cooling air of the control device housing part exhausted from the exhaust port is sufficiently diffused into the atmosphere inside the heating element storage box and then sucked from the inside air intake port At the inner airflow inlet One next, thereby improving the heat exchange efficiency of the heat exchanger.

  Further, the invention described in claim 15 is provided with an auxiliary fan for encouraging the introduction of the discharge air from the inside air blower at the ventilation opening of the control device accommodating portion, and the discharge air from the inside air blower is the ventilation air. It is urged to be introduced into the control device housing portion through the mouth, and the size of the ventilation port can be reduced without impairing the cooling of the control device, thereby reducing the reduction in the circulating air volume in the heating element storage box. In addition, the operation of the control device can be performed stably.

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

(Embodiment 1)
In FIG. 1, a mobile phone base station 3 is provided on a roof 2 of a building 1. The mobile phone base station 3 includes a box-shaped heating element storage box 4, a transmitter / receiver 5 provided in the heating element storage box 4, and a cooling device 6 provided in front of the heating element storage box 4. ing.

  As shown in FIG. 2, the cooling device 6 is provided with an outside air inlet 8 for sucking outside air and an outside air outlet 9 for discharging outside air on the outside surface 7 facing the outside air, and is positioned opposite to the outside surface 7. A main body shell 13 provided with an inside air inlet 11 for sucking air in the heating element storage box 4 into an indoor surface 10 facing the heating element storage box 4 and an inside air outlet 12 for discharging air in the heating element storage box 4. The outside air blower 14 for outside air and the inside air intake port 11 are provided so as to face the outside air blower 14 and the inside air intake port 11 constituted by a centrifugal fan that is provided in the main body outer shell 13 and that faces the outside air intake port 8. An internal air blower 15 for air in the heating element storage box 4 constituted by a centrifugal fan, a heat exchanger 16 for exchanging heat between the outside air and the air in the heating element storage box 4 in the main body outer shell 13, and an external air blower 14 And a control device 17 for controlling the inside air blower 15 And a control device accommodation portion 18.

  The heat exchanger 16 has a configuration in which a rectangular heat exchanger plate 19 is stacked and a part of the outside air passage 20 and a part of the inside air passage 21 are formed so as to intersect with each other with the heat transfer plate 19 interposed therebetween. It is said. In addition, the heat exchanger 16 is in the outside air passage 20 and has an outside air inlet 22 through which outside air discharged from the outside air blower 14 located on the lower surface side flows and an outside air outlet 23 that blows out air to the outdoor surface 7 side. The outside air outlet 23 communicates with the outside air outlet 9. Moreover, in the internal air flow path 21, the internal air flow inlet 24 into which the air in the heat generating body storage box 4 discharged from the internal air blower 15 located in the upper surface side flows in, and the internal air outlet which blows off air to the indoor surface 10 side 25 and the inside air outlet 25 is configured to communicate with the inside air outlet 12.

  As described above, the outside air passage 20 allows air to flow from the outside air inlet 8 for outside air to the outside air again through the outside air blower 14, the outside air inlet 22 and outside air outlet 23 of the heat exchanger 16, and the outside air outlet 9. Forms a circulating air passage. Further, the inside air air passage 21 passes again from the inside air inlet 11 for the air in the heating element storage box 4 through the inside air blower 15, the inside air inlet 24 and the inside air outlet 25 of the heat exchanger 16, and the inside air outlet 12. An air path for circulating air into the heating element storage box 4 is formed.

  The outside air duct 20 is configured to communicate outside air from the outside air intake port 8 through the heat exchanger 16 and the outside air discharge port 9 by the action of the outside air blower 14 provided inside the outer shell 13 of the outside air inlet port 8. To do. Further, the inside air air passage 21 is provided in the heating element storage box 4 from the inside air intake port 11 through the heat exchanger 16 and the inside air discharge port 12 by the action of the inside air blower 15 provided inside the outer body 13 of the inside air intake port 11. It is configured to allow air to communicate.

  Further, as shown in FIG. 3, the position of the control device accommodating portion 18 is tangential to the tangential direction s of the discharged air of the inside air blower 15 with respect to the rotation direction r of the inside air blower 15 disposed above the heat exchanger 16. Is disposed on the side of the heat exchanger 16 facing the internal air flow inlet 24.

  With the above configuration, the control device accommodating portion 18 serving as an air path resistor is arranged in a direction in which the tangential direction s of the discharge air from the inside air blower 15 is directed to the inside air flow inlet 24 of the heat exchanger 16, thereby There is no airflow resistance on the side where it is difficult for air discharged from the blower 15 to flow into the internal airflow inlet 24 where it does not directly go to the heat exchanger 16, and the air discharged from the internal air blower 15 goes directly to the heat exchanger 16. Since the airflow resistance is provided only on the side where it easily flows into the internal airflow inlet 24, the discharged air from the internal air blower 15 can uniformly flow into the entire internal airflow inlet 24, and the control device 17 is mounted. It is possible to reduce the decrease in the circulating air volume in the heating element storage box 4 and the cooling capacity of the cooling device 6 due to the above.

(Embodiment 2)
The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the second embodiment of the present invention, as shown in FIG. 4, the surface of the heat exchanger 16 on the side of the internal air flow inlet 24 of the control device housing portion 18 is located above the lowermost end of the internal air blower 15. Thus, a space t is provided between the control device accommodating portion 18 and the internal air flow inlet 24.

  With the above-described configuration, the discharge air from the inside air blower 15 has a space corresponding to the gap t immediately below the control device housing portion 18, thereby reducing pressure loss and facilitating flow into the heat exchanger 16. Since the entire heat transfer area of the heat exchanger 16 can be used effectively, the heat exchange efficiency of the heat exchanger 16 can be improved.

  Here, the gap t is applied in a range in which the surface on the inner airflow inlet 24 side of the control device housing portion 18 is below the rotational axis of the internal air blower 15 and above the inner airflow inlet 24.

  The range of t is, for example, when the outside diameter of the inside air blower 15 is 300 mm and the distance from the inside air flow inlet 24 to the surface facing the inside air flow inlet of the main body outline is 350 mm, the lower limit value is that the inside air blower is connected to the heat exchanger 16. The upper limit is 190 mm because the distance between the inner air inlet and the rotating shaft of the inner air blower is 190 mm at the limit where the inside air blower can be separated from the heat exchanger. More preferably, the pressure loss when the discharge air from the inside air blower flows into the heat exchanger is reduced in the range of the required volume of the control device housing portion, and the discharge air from the inside air blower is reduced to the control device housing portion. The air blow loss caused by colliding with the surface of the inside air blower is such a range that does not affect the decrease in the cooling capacity of the cooling device and the increase in power consumption. According to the experiment, the optimum range is 50 to 100 mm.

(Embodiment 3)
The same parts as those in the first or second embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the third embodiment of the present invention, as shown in FIG. 5, the horizontal plane FL of the rotating shaft of the inside air blower 15 is opposed to the inside air inlet 24 of the heat exchanger 16 and the inside air inlet 24 of the main body outer shell 13. It arrange | positions so that it may become the side far from a heat exchanger rather than the intermediate | middle plane CL with a surface, The clearance gap between the internal air blower 15 and the heat exchanger 16 becomes large.

  With the above configuration, the tangential direction of the discharge air from the internal air blower 15 is parallel to the internal air flow inlet 24 of the heat exchanger 16 at the lowermost end of the internal air blower 15, and the discharge air from the internal air blower 15 is heated. It is difficult to flow into the exchanger 16 by increasing the gap between the inside air blower 15 and the heat exchanger 16 until the discharged air from the inside air blower 15 flows into the heat exchanger 16. Since a space that is only perpendicular to the internal air flow inlet 24 is obtained, the inflow resistance when the discharged air from the internal air blower 15 flows into the heat exchanger 16 can be reduced, and the power consumption of the cooling device 6 can be reduced and the cooling can be reduced. Noise generated from the inside air inlet 11 of the device 6 can be reduced.

(Embodiment 4)
The same parts as those in the first to third embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the fourth embodiment of the present invention, as shown in FIG. 6, a slit serving as a vent hole 26 is provided on the surface of the control device accommodating portion 18 on the inside air blower 15 side, and the slit has the same width as the control device 17. Thus, the entire control device 17 is an opening that is invisible from the slit.

  With the above configuration, the control device 17 can be cooled by the discharge air from the inside air blower 15 by introducing the discharge air from the inside air blower 15 into the control device accommodating portion 18 from the air outlet 26, and other heat radiating means. The operation of the control device 17 can be performed stably without using.

(Embodiment 5)
The same parts as those in the first to fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the fifth embodiment of the present invention, as shown in FIG. 7, the air discharged from the inside air blower 15 introduced into the control device housing portion 18 from the vent 26 on the indoor surface 10 of the main body outer shell 13 is generated as a heating element. An exhaust port 27 for exhausting into the storage box 4 is provided.

  With the above configuration, the air discharged from the inside air blower 15 introduced into the control device housing portion 18 can be exhausted into the heating element storage box 4 from the exhaust port 27, and the air cooled in the control device housing portion 18 is heat exchanged. By preventing the air from flowing into the heat exchanger 16, only the air discharged from the internal air blower 15 directly flows into the heat exchanger 16, and the temperature of the air flowing into the heat exchanger 16 is changed at the internal air flow inlet 24. It becomes uniform as a whole, and the heat exchange efficiency of the heat exchanger 16 can be improved.

(Embodiment 6)
The same parts as those in the first to fifth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the sixth embodiment of the present invention, as shown in FIG. 8, the control device housing portion 18 is introduced into the control device housing portion 18 from the ventilation port 26 on the surface of the heat exchanger 16 facing the internal air flow inlet 24. Further, an exhaust port 27 for circulating the discharged air from the inside air blower 15 to the heat exchanger 16 is provided.

  With the above configuration, the discharge air from the inside air blower 15 introduced into the control device housing portion 18 can be circulated from the exhaust port 27 to the internal air flow inlet 24 of the heat exchanger 16, so that the heating element storage box 4 can reduce the reduction of the circulating air volume.

(Embodiment 7)
The same parts as those in the first to sixth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the seventh embodiment of the present invention, as shown in FIG. 9, the surface of the control device housing portion 18 on the side of the inside air blower 15 so that the volume of the control device housing portion 18 becomes smaller toward the inner airflow inlet 24. At least a part of which is inclined away from the inside air blower 15.

  With the above configuration, the discharge air from the inside air blower 15 is directed to the inside air flow inlet 24 of the heat exchanger 16 even immediately below the control device housing portion due to the inclination of the surface of the control device housing portion 18 on the inside air blower 15 side. Since it becomes easy to flow in, the discharge air from the inside air blower 15 easily flows uniformly into the whole air flow inlet 24, and the entire heat transfer area of the heat exchanger 16 can be effectively used. The heat exchange efficiency of can be improved.

  In addition, the shape of the control apparatus accommodating part 18 shown by this Embodiment is an example, and as shown in FIG. 10, at least one part of the surface facing the internal air blower 15 of the control apparatus accommodating part 18 is formed in a curved surface. In this way, the same effect can be obtained.

(Embodiment 8)
The same parts as those in the first to seventh embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the eighth embodiment of the present invention, as shown in FIG. 11, the control device accommodating portion 18 is arranged along the main body outer shell 13, and the tangent line of the discharged air from the inside air blower 15 with respect to the rotation direction r of the inside air blower 15. The direction s is divided into at least two of the surface facing the internal air flow inlet 24 of the heat exchanger 16, the surface facing the internal air intake port 11, and the surface facing the internal air flow inlet 24. is there.

  With the above configuration, since the degree of freedom of the shape of the control device housing portion 18 is increased, a gap between the control device housing portion 18 and the inside air blower 15 can be increased, and the discharge air from the inside air blower 15 is accommodated in the control device housing. The blower loss caused by the collision with the unit 18 can be reduced, and the power consumption of the cooling device 6 can be reduced.

(Embodiment 9)
The same parts as those in the first to eighth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the ninth embodiment of the present invention, a casing member 28 is provided around the inside air blower 15 as shown in FIG.

  With the above configuration, the air blown from the inside air blower 15 can be smoothly promoted to the inside air flow inlet 24 of the heat exchanger 16 along the tangential direction s of the air discharged from the inside air blower 15. The blower loss caused when the discharged air collides with the main body outer shell 13 and the control device housing portion 18 can be reduced, and the power consumption of the cooling device 6 can be reduced.

(Embodiment 10)
The same parts as those in the first to ninth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the tenth embodiment of the present invention, as shown in FIG. 13, a heat radiating member 29 that thermally connects the control device 17 and the main body shell 13 and radiates the heat of the control device 17 to the outside air environment outside the main body is provided. It is provided.

  With the above configuration, the heat radiating member 29 can thermally connect the control device 17 and the main body outer shell 13, and heat generated from the control device 17 can be radiated to the outside air environment outside the main body through the main body outer shell 13. Therefore, the cooling capacity necessary for cooling the control device of the cooling device 6 is small, and the decrease in the cooling capacity for cooling the air in the heating element storage box 4 can be reduced.

(Embodiment 11)
The same parts as those in Embodiments 1 to 10 are denoted by the same reference numerals, and detailed description thereof is omitted. In the eleventh embodiment of the present invention, as shown in FIG. 14, the control device 17 is arranged perpendicular to the rotational axis direction y of the inside air blower 15 in the control device housing portion 18.

  With the above configuration, the flow direction of the discharge air from the inside air blower 15 introduced from the vent 26 into the control device housing portion 18 is parallel to the control device 17, so that the discharge air from the inside air blower 15 and Since the air loss caused by the collision with the control device 17 can be reduced, the power consumption of the cooling device 6 can be reduced, and the cooling air flows along the surface of the control device 17 to cool the control device 17. Thus, the operation of the control device 17 can be performed stably.

(Embodiment 12)
The same parts as those in Embodiments 1 to 11 are denoted by the same reference numerals, and detailed description thereof is omitted. In the twelfth embodiment of the present invention, as shown in FIG. 15, a movable plate 30 capable of variably controlling the size is provided at the ventilation opening 26.

  With the above configuration, the size of the vent 26 is variably controlled according to the amount of heat generated by the control device 17 and the amount of air discharged from the inside air blower 15 depending on the operating conditions of the outside air blower 14 and the inside air blower 15. By reducing the air volume of the discharged air from the inside air blower 15 introduced into the control device housing portion 18 for cooling the control device 17 to the minimum necessary amount, the circulation air volume in the heating element storage box 4 is reduced. The operation of the control device 17 can be performed stably.

(Embodiment 13)
The same parts as those in Embodiments 1 to 12 are denoted by the same reference numerals, and detailed description thereof is omitted. In the thirteenth embodiment of the present invention, as shown in FIG. 16, a louver 31 that separates the inside air intake port 11 and the exhaust port 27 is provided on the exhaust port 27 provided on the surface of the main body outer shell 13 on the side of the heating element storage box 4. It is provided.

  With the above configuration, the discharge air from the inside air blower 15 introduced into the control device housing portion 18 for cooling the control device 17 is exhausted from the exhaust port 27 into the heat generating body storage box 4 and then the heat generating body is stored. By short-circuiting to the inside air intake port 11 without sufficiently diffusing into the atmosphere inside the box 4, a part of the circulating air volume of the air inside the heating element storage box 4 is used for cooling inside the control device housing portion 18. The cooling capacity is prevented from lowering due to the circulation air volume, and the cooling air of the control device housing portion 18 exhausted from the exhaust port 27 is sufficiently diffused into the atmosphere inside the heating element storage box 4 and then sucked from the inside air intake port 11. As a result, the temperature of the air flowing into the heat exchanger 16 becomes uniform throughout the inner airflow inlet 24, and the heat exchange efficiency of the heat exchanger 16 can be improved.

(Embodiment 14)
The same parts as those in Embodiments 1 to 13 are denoted by the same reference numerals, and detailed description thereof is omitted. In the fourteenth embodiment of the present invention, as shown in FIG. 17, an auxiliary fan 32 is provided at the vent hole 26.

  With the above configuration, the discharge air from the inside air blower 15 is urged to be introduced into the control device housing portion 18 through the ventilation port 26, and the size of the ventilation port 26 is not impaired without impairing the cooling of the control device 17. By reducing the length, it is possible to reduce a decrease in the circulating air volume in the heating element storage box 4 and to stably operate the control device 17.

  As described above, the present invention is a box structure that is installed outdoors such as a mobile telephone base station, a simple radio station, etc., and has a heating element such as a communication device inside. Control device and control device that needs to be installed near the inside air blower in a heating element storage box having precision equipment that requires cooling and temperature, humidity, dust, wind and rain etc. affect performance and life Improves the heat exchange efficiency by improving the arrangement and shape of the storage section, reducing the reduction in circulating air volume in the heating element storage box, and making the air flow to the heat exchanger uniform. It is useful as a cooling device that can also cool down.

The perspective view which shows the example of installation of Embodiment 1 of this invention A perspective view of the cooling device ((a) a schematic perspective view of the cooling device (b) a schematic perspective view of a heat exchanger) Schematic plan view showing the cooling device Schematic front view showing Embodiment 2 of the present invention Schematic front view showing Embodiment 3 of the present invention Schematic front view showing Embodiment 4 of the present invention Schematic front view showing Embodiment 5 of the present invention Schematic front view showing Embodiment 6 of the present invention Schematic front view showing Embodiment 7 of the present invention Schematic front view showing Embodiment 7 of the present invention Schematic front view showing Embodiment 8 of the present invention Schematic front view showing Embodiment 9 of the present invention Schematic front view showing Embodiment 10 of the present invention The figure which shows Embodiment 11 of this invention ((a) schematic front view (b) schematic plan view) Schematic front view showing Embodiment 12 of the present invention The figure which shows Embodiment 13 of this invention ((a) schematic front view (b) schematic plan view) Schematic front view showing Embodiment 14 of the present invention Schematic sectional view showing a conventional cooling device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building 2 Rooftop 3 Mobile phone base station 4 Heating element storage box 5 Transmitter / receiver 6 Cooling device 7 Outdoor surface 8 Outside air intake port 9 Outside air outlet port 10 Indoor surface 11 Inside air inlet port 12 Inside air outlet port 13 Main body outer shell 14 Outside air Air blower 15 Inside air blower 16 Heat exchanger 17 Control device 18 Control device housing part 19 Heat transfer plate 20 Outside air flow path 21 Inside air flow path 22 Outside air flow inlet 23 Outside air blowing outlet 24 Inside air flow inlet 25 Inside air blowing outlet 26 Ventilation opening 27 Exhaust opening 28 Casing member 29 Heat dissipation member 30 Movable plate 31 Louver 32 Auxiliary fan

Claims (15)

A heat exchanger attached to the heating element storage box, and a heat exchanger for exchanging heat between the outside air and the air in the heating element storage box with a heat transfer plate sandwiched in the center of the box-shaped outer body, and in the heating element storage box Inside air outlet for discharging heat exchanged air, outside air outlet for discharging air after heat exchange to the outside, outside air inlet for sucking outside air at the lower part of the heat exchanger, and heat exchange from the outside air inlet An outside air blower for sending outside air to the heat exchanger, an inside air inlet for sucking air in the heating element storage box at the top of the heat exchanger, and air in the heating element storage box from the inside air inlet to the heat exchanger An internal air blower, a control device accommodating portion for accommodating a control device for controlling the operation of the internal air blower and the external air blower, and the heat exchanger has an external air flow inlet for allowing external air to flow into the lower portion, and an upper portion Inside air flow inlet for the air inside the heating element storage box to flow in, outdoor side In the cooling device having an outside air outlet for blowing outside air on the surface, and an inside air outlet for blowing air in the heating element storage box on the surface on the heating element storage box side, the control device accommodating portion is connected to the inside air blower. A cooling device, wherein a tangential direction of a rotation direction of the internal air blower is arranged on a side of the heat exchanger toward the internal air flow inlet with respect to a rotation shaft. The cooling device according to claim 1, wherein a space is provided between the control device housing portion and the internal air flow inlet of the heat exchanger. The rotation axis of the outside air blower and the inside air blower is more than the intermediate plane between the outside air flow inlet and the inside air flow inlet of the heat exchanger and the surface of the main body outer wall facing the outside air flow inlet and the inside air flow inlet. The cooling device according to claim 1, wherein the cooling device is installed on a side away from the cooling device. The cooling device according to any one of claims 1 to 3, further comprising at least one ventilation port for introducing the discharge air from the inside air blower into the control device housing portion. The cooling device according to any one of claims 1 to 4, further comprising an exhaust port for air introduced from the ventilation port on a surface of the outer shell of the main body on the heating element storage box side. The cooling device according to any one of claims 1 to 4, further comprising an exhaust port for air introduced from the ventilation port, on a surface of the control device housing portion that faces the internal air flow inlet. At least a part of a surface of the control device housing portion on the side of the inside air blower is inclined in a direction away from the inside air blower toward the inside air flow inlet of the heat exchanger. A cooling device according to claim 1. The cooling device according to any one of claims 1 to 6, wherein at least a part of a surface on the inside air blower side of the control device housing portion is formed as a curved surface. The cooling device according to any one of claims 1 to 7, wherein the control device storage portion is arranged along at least two surfaces along the outer shell of the main body. The cooling device according to claim 1, wherein a casing member is provided around the inside air blower. The heat dissipation member which thermally connects the control apparatus in the said control apparatus accommodating part and the said main body outline is provided in the surface at the side of the main body outline of a control apparatus accommodating part, The Claim 1 characterized by the above-mentioned. Cooling system. The cooling device according to any one of claims 1 to 10, wherein the control device is arranged perpendicular to the rotation axis direction of the inside air blower in the control device housing portion. The cooling device according to claim 4, wherein the size of the ventilation port can be variably controlled according to the operating state. 6. The cooling device according to claim 5, wherein a louver is provided at an exhaust port provided on the side of the heating element storage box surface of the main body outline. The cooling device according to claim 4, wherein an auxiliary fan is provided at the ventilation port.

Images