JP5380928B2 - Heat exchange device and heating element storage device using the same - Google Patents

Description

  The present invention relates to a heat exchange device and a heating element storage device using the heat exchange device.

  For example, since a current of several tens of amperes or more flows in a mobile phone base station, it is also expressed as a heating element in a certain point. In other words, cooling is extremely important in order to stabilize the operation. Such a mobile phone base station has the following configuration in order to cool the base station. That is, this type of heating element storage device includes a cabinet that stores a transmitter / receiver serving as a heating element, and a heat exchange device that is attached to an opening of the cabinet. In addition, it is desired to reduce the installation area as the heating element storage device, and the heat exchange device is often attached to the door portion of the cabinet, so that a reduction in thickness has been desired (for example, patents). Reference 1).

  Hereinafter, the heat exchange apparatus will be described with reference to FIG.

  As shown in FIG. 6, the heat exchange device has, for example, the following configuration in order to be attached to the wall surface of the heating element storage device. That is, a main body case 107 having a first intake port 101 for outside air, a first discharge port 102 and a second intake port 105 and a second discharge port 106 for housing the cabinet 104 in which the heating element 103 is housed, and the main body case 107. A first blower 108 for outside air and a second blower 109 for inside the cabinet 104 provided inside, and a heat exchanger 110 for exchanging heat between outdoor air and air inside the cabinet 104 in the main body case 107, It was the composition with.

The first blower 108 and the second blower 109 are arranged in a direction facing each other with respect to the heat exchanger 110 arranged in the central portion in the main body case 107, and the first intake port 101 and the second intake port. The air sucked from 105 was blown into the heat exchanger 110.
JP 2000-161875 A

  In such a heat exchange device, a current of several tens of amperes or more flows through the mobile phone base station, so that the temperature rise in the interior is high. In particular, the second blower 109 that circulates the internal air to waste heat. However, in the unlikely event of a failure, there is a problem that it becomes difficult to keep the internal temperature below a predetermined temperature because the blown air volume suddenly stops.

  This invention solves such a subject, and it aims at providing the heat exchange apparatus which does not generate | occur | produce the fall of an air flow volume suddenly, and a heat generating body accommodating apparatus using the same even if a fan fails.

Therefore, heat exchange equipment of the present invention comprises a heat exchanger communicating alternately first air passage and the second air passage across the heat transfer plate, a first air blower to the first air passage, the second A second air blower is provided in the air passage, and the second air blower has two first centrifugal fans and a second one arranged diagonally on the discharge surface with the suction port opposed to the discharge surface of the heat exchanger. constituted by a centrifugal fan, and said second fan changes the direction of the second air passage for blowing the discharge surface of the heat exchanger so as to be perpendicular to the top surface of the heat exchanger, further, the first A partition wall is provided along the second air path between the centrifugal fan and the second centrifugal fan .

By this means, by constituting with two centrifugal fans, even if the second blower fails, the two centrifugal fans are less likely to fail at the same time, and the second environment side air blow does not stop suddenly. heat exchange equipment with is obtained.

Further, there is no possible to fail simultaneously by the different environments operating environment of the two centrifugal fans, heat exchange equipment that is effective in that it eliminates the blowing even failed second blower is stopped suddenly give It is done.

Another means is that the lower end of the partition wall is formed with a second blowing port leading to the second environment, and the second blowing port has an area of the blowing port of the first centrifugal fan disposed on the upper side, This is smaller than the area of the outlet of the second centrifugal fan arranged on the lower side.

By this means, by making the operating environments of the two centrifugal fans different environments, there is no failure at the same time, and even if the second blower breaks down, there is an effect that the air blowing does not stop suddenly. Is obtained.

Also, other means, the first centrifugal fan and a second centrifugal fan of, constituted by the same blades and the motor, the partition is first centrifugal fan from the position where the direction of rotation of each fan are opposed to each other If it is the extended and ash to outlet of the second centrifugal fan.

By this means, it is possible to make the operating environment of the two centrifugal fans different from each other by blowing the blowing air from different outlets, and even if the second blower breaks down, the blowing does not stop suddenly. heat exchange equipment that is effective that can be obtained.

  As another means, the partition wall is provided so as to intersect with a diagonal line connecting the rotation axis of the first centrifugal fan and the rotation axis of the second centrifugal fan.

By this means, it is possible to make the operating environment of the two centrifugal fans different from each other by blowing the blown air from different outlets, and even if the second blower breaks down, the second environment side air blows suddenly heat exchange equipment that is effective in that there is no stopping is obtained.

  Another means is that the first centrifugal fan has a side wall that communicates with the outlet along the rotation direction, and the second centrifugal fan blows out directly to the outlet.

By this means, by making the operating environment of the two centrifugal fans different environments, there is no failure at the same time, and even if the second blower fails, the blowing on the second environment side does not stop suddenly. heat exchange equipment with is obtained.

Further, the other means includes a cabinet for storing the heating element therein, a first air passage that sucks in outside air from both sides of the cabinet and blows it out from the back surface, and air in a space below the upper portion of the cabinet in a vertical plane. A second air passage that circulates upward, and a heat exchange device in which the air passage is disposed in the upper part of the cabinet so as to correspond to the first air passage and the second air passage, and cooling the inside of the cabinet; It is a thing.

By this means, the second fan having two different centrifugal fan of the operating environment, failure suddenly blown even when Ru Oh effect of preventing rapid increase in temperature in the cabinet no longer terminate fever A body storage device is obtained.

  According to the heat exchange device of the present invention and the heating element storage device using the heat exchange device, the heat exchanger having a first air passage and a second air passage sandwiching the heat transfer plate between the heat exchange device, and the first A first blower is provided in the air passage and a second blower is provided in the second air passage, and the second blower is constituted by two centrifugal fans, so that even if the second blower fails, the two centrifugal fans fail simultaneously. Therefore, it is possible to provide a heat exchanging device that has an effect that air blowing does not stop suddenly and a heating element storage device using the heat exchanging device.

The figure which shows the installation state of the heat generating body accommodating apparatus of Embodiment 1 of this invention. The figure which shows the structure of the same heating element storage device The figure which shows the inside of the same heating element storage device Diagram showing the configuration of the heat exchanger The figure which shows the structure of the 2nd air blower of the same heat exchange apparatus. The figure which shows the structure of the conventional heat exchanger

The first invention includes a heat exchanger communicating alternately first air passage and the second air passage across the heat transfer plate, a first air blower to the first air passage, the said second air passage 2 The second blower includes a first centrifugal fan and a second centrifugal fan arranged diagonally on the discharge surface with the suction port facing the discharge surface of the heat exchanger. And the second blower changes the direction of the second air path blown out from the discharge surface of the heat exchanger so as to be orthogonal to the top surface of the heat exchanger, and further, the first centrifugal fan and the By providing a partition wall along the second air path between the second centrifugal fans , the second blower has an effect of operating two centrifugal fans to blow air.

In addition, a second air outlet that leads to the second environment is formed at the lower end of the partition wall, and the area of the air outlet of the first centrifugal fan arranged on the upper side is arranged on the lower side. A heat exchanging device that is smaller than the area of the air outlet of the second centrifugal fan, wherein the area of the air outlet of the first centrifugal fan is smaller than the area of the air outlet of the second centrifugal fan. It has the effect | action which makes the operating environment of a fan operate in a different environment.

The first centrifugal fan and a second centrifugal fan of, constituted by the same blades and the motor, the partition is first centrifugal fan and a second centrifugal from the position where the rotation direction of each of the fan are opposed to each other A heat exchanging device extending to a fan outlet, wherein the first centrifugal fan and the second centrifugal fan separately blow out the blown air by the partition wall, and blow out from the outlets of different areas. Have

The partition wall is a heat exchanging device provided so as to intersect with a diagonal line connecting the rotation axis of the first centrifugal fan and the rotation axis of the second centrifugal fan, the first centrifugal fan and the second centrifugal fan. The fan blows the blown air separately from each other by the partition walls, and has an action of blowing out from the blowout ports having different areas.

The first centrifugal fan has a side wall which communicates with the opening balloon along the rotational direction, the second centrifugal fan is a heat exchanger that is configured to be blown directly to the balloon neck, the first centrifugal fan Blows out air along the side wall, and the second centrifugal fan directly blows out air.

And a first air passage that sucks outside air from both sides of the cabinet and blows it out from the back side, and a first air passage that circulates air in a space below the upper part of the cabinet on a vertical plane. A heating element storage device comprising a heat exchange device in which two air passages are formed and the air passages are arranged in the upper part of the cabinet so as to correspond to the first air passage and the second air passage, and the inside of the cabinet is cooled. And it has the effect | action which cools the inside of a cabinet provided with the heat exchange apparatus which makes the operating environment of two centrifugal fans operate differently.

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

(Embodiment 1)
1 denotes a building, and a rooftop 2 is provided with a mobile phone base station 3 as a heating element storage device. The mobile phone base station 3 is composed of a box-shaped cabinet 4, a transmission / reception device 5 provided in the cabinet 4, and a heat exchange device 6 provided above the cabinet 4. That is, the heat exchanging device 6 is installed at the upper part inside the box-shaped cabinet 4 that divides a space for housing the transmitting / receiving device 5 as the second environment with respect to the outside air as the first environment.

  As shown in FIG. 2, the cabinet 4 has a first intake port 7 for sucking air of the first environment on the side surface and a first discharge port 8 for blowing air from the back surface to the first environment, and is installed inside. A first air passage 9 communicating with the heat exchange device 6 is formed on a substantially horizontal plane.

  Further, as shown in FIG. 3, in the cabinet 4, the air in the second environment sucked from the second air inlet 10 of the heat exchanging device 6 disposed in the upper part is returned from the second outlet 11 to the second environment again. A second air passage 12 that blows out is formed. Moreover, the 2nd inlet 10 and the 2nd outlet 11 are arrange | positioned in the thickness direction of the cabinet 4, and the 2nd air path 12 forms a circulation flow path on a substantially vertical surface.

  Next, as shown in FIG. 4, the heat exchanging device 6 has two air passages that cross the air in the first air passage 9 and the second air passage 12 with each other across the heat transfer plate, and each pair corresponds to each other. The heat exchanger 13 formed with the discharge surface and the suction surface facing each other, and a first blower 14 and a second blower 15 are provided on one discharge surface adjacent to the heat exchanger 13. Is provided with a first blowout port 16 that blows out horizontally, a first suction port 17 is provided on one suction surface of the heat exchanger 13, and the first air passage 9 is formed on a horizontal plane. And it communicates with the first environment.

  Further, the second discharge surface 18 of the heat exchanger 13 has a second blow-off port 19 that blows downward to the second blower 15 in the vertical direction, and the other suction surface of the heat exchange device 6 has air from below. A second suction port 20 for suction is provided, and the second air passage 12 is formed on a vertical plane to communicate with the second environment.

  Then, as shown in FIG. 5, the second blower 15 includes a first centrifugal fan 22 and a second centrifugal fan as two centrifugal fans in which the central axis of the fan is disposed on the first diagonal line 21 of the discharge surface 18. The fan 23 is configured. The first centrifugal fan 22 is disposed above the second centrifugal fan 23. The first centrifugal fan 22 and the second centrifugal fan 23 are constituted by the same fan and motor, and the diameter of the fan is smaller than the width of the discharge surface 18 and larger than ½ of the width. It is a thing. The rotation direction of the fan is the same direction.

  Moreover, the top surface plate 24 and the side wall 25 which surround the 2nd air blower 15 are arrange | positioned in the discharge surface 18, and the 2nd blower outlet 19 is formed in the lower surface side.

  The second blowout port 19 is formed by a partition wall 26 extending from a position where the rotation directions of the fans face each other to the blowout port of the first centrifugal fan 22 and the second centrifugal fan 23, and thereby the first centrifugal fan 22. The first opening 27 as a blowout port and the second opening 28 as a blowout port of the second centrifugal fan 23 are provided. The first opening 27 is formed with a smaller opening area than the second opening 28. For example, as shown in FIG. 5, the opening widths L1 and L2 of the first opening 27 and the second opening 28 are changed so as to satisfy (L1 / L2) <1, and the blowout port of the first centrifugal fan 22 is provided. The area is made smaller than the area of the outlet of the second centrifugal fan 23.

  The first centrifugal fan 22 has a side wall 25 that communicates with the first opening 27 along the rotation direction, and the second centrifugal fan 23 blows out directly to the second opening 28.

  Further, a part of the partition wall 26 is provided so as to intersect with the first diagonal line 21 connecting the rotation axis of the first centrifugal fan 22 and the rotation axis of the second centrifugal fan 23.

  Further, a part of the partition wall 26 is located on a second diagonal line 29 intersecting the first diagonal line 21 of the discharge surface 18.

  With the above configuration, the air in the first environment is sucked into the first suction port 17 of FIG. 4 through the first intake port 7 by the action of the first blower 14 of the heat exchange device 6 shown in FIG. Then, the air is sucked into the heat exchanger 13, blown out from the first blowout port 16 by the first blower 14, and blown out again to the first environment through the first discharge port 8 of FIG. On the other hand, the air of the second environment in the cabinet 4 by the action of the second blower 15 of FIG. 3 is sucked from the second suction port 20 of FIG. 4 through the second suction port 10 and passes through the heat exchanger 13. The second blower 15 blows out from the second blowout port 19 and blows out again from the second discharge port 11 to the second environment.

  And the heat of the air sucked from the second environment passes through the heat exchanger 13 and is exchanged with the heat of the air sucked from the first environment, thereby discharging the heat of the second environment. It will be cooled. That is, the air in the second environment in the cabinet 4 can be cooled by the heat exchange device 6 disposed above the cabinet 4.

Now, in the heat exchange device 6 operating as described above, in the second environment in the cabinet 4 the heat generation of the transmission / reception device 5 is significant compared to the first environment, especially on the second air passage 12 side. the second blower 15 is arranged, will be placed under severe temperature environment, there is the life is shorter than the first fan 14 disposed in the first air passage 9 side. Therefore, when the second blower 15 is configured by the first centrifugal fan 22 and the second centrifugal fan 23 as in the present embodiment, the following operation is performed. That is, the first centrifugal fan 22 and the second centrifugal fan 23 are arranged diagonally to the discharge surface 18 of the heat exchange element, change the direction at right angles to the discharge direction from the discharge surface 18, and by the blowing direction in the same direction, the first centrifugal fan 22 two centrifugal fan of a second centrifugal fan 23 is blowing direction distance can be changed for, and thus to different resistances from each other state . The first centrifugal fan 22 and the second centrifugal fan 23 can be operated in different operating environments even if the same centrifugal fan is prepared. That is, the rotational speeds of the first centrifugal fan 22 and the second centrifugal fan 23 are also different, the load applied to the motor is also different, and no failure occurs at the same time.

  Even if one of the centrifugal fans, for example, the first centrifugal fan 22 stops, the other centrifugal fan, for example, the second centrifugal fan 23 continues to operate, and suddenly the second environment The air blowing on the side will not stop.

  As described above, first, by configuring the second blower 15 with the two centrifugal fans, the first centrifugal fan 22 and the second centrifugal fan 23, the air blowing on the second environment side does not stop suddenly. . In other words, compared to the case where it is constituted by one centrifugal fan, the probability of failure occurring at the same time is extremely low by comprising two centrifugal fans of the first centrifugal fan 22 and the second centrifugal fan 23. Therefore, even if the second blower 15 breaks down, the blowing does not stop suddenly.

  Further, by making the operating environments of the two centrifugal fans of the first centrifugal fan 22 and the second centrifugal fan 23 different from each other, it is possible to prevent the simultaneous failure and the second environment even if the second blower 15 breaks down. The air blowing on the side will not stop suddenly.

  Further, in the second outlet 19, the opening widths L 1 and L 2 of the first opening 27 and the second opening 28 in FIG. 5 are changed, and the area of the outlet of the first centrifugal fan 22 is set to the second centrifugal fan 23. By making the area smaller than the area of the blowout port, the resistance in the blowout direction of the two centrifugal fans of the first centrifugal fan 22 and the second centrifugal fan 23 is made different, and the operation environment is made different. . Therefore, even if the second blower 15 breaks down, the two centrifugal fans of the first centrifugal fan 22 and the second centrifugal fan 23 do not break down at the same time, and the blowing on the second environment side stops suddenly. Disappears.

  In addition, the first centrifugal fan 22 blows out air along the side wall 25 and the second centrifugal fan 23 blows out air directly, so that the two centrifugal fans of the first centrifugal fan 22 and the second centrifugal fan 23 are blown out. By setting the operating environment of the fans to different environments, there is no simultaneous failure, and even if the second blower 15 breaks down, the blowing on the second environment side does not stop suddenly.

  Further, the first centrifugal fan 22 and the second centrifugal fan 23 divide the blown air from each other by the partition wall 26, and can blow out efficiently from the blowout ports of different areas. The blowout air is divided and blown out from the first centrifugal fan 22 and the second centrifugal fan 23, so that the resistance on the blowout side of the two centrifugal fans can be different, and the operating environment can be different. Even if the second blower 15 breaks down, the blowing on the second environment side does not stop suddenly.

  Further, the first centrifugal fan 22 and the second centrifugal fan 23 are provided so as to intersect with a first diagonal line 21 connecting the rotation axis of the first centrifugal fan 22 and the rotation axis of the second centrifugal fan 23. By the partition wall 26, the first centrifugal fan 22 and the second centrifugal fan 23 are blown separately without interfering with the air blown out at the portion closest to the first centrifugal fan 22 and the second centrifugal fan 23. Thus, it is possible to efficiently blow out the air blown from the different outlets. And the blowing air path of the two centrifugal fans of the first centrifugal fan 22 and the second centrifugal fan 23 can be made different, and the operating environment can be made different. As a result, even if the second blower 15 breaks down, the blowing on the second environment side does not stop suddenly.

  The cabinet 4 is cooled by including the heat exchange device 6 that operates the two centrifugal fans of the first centrifugal fan 22 and the second centrifugal fan 23 in different environments. The second blower 15 provided with two different centrifugal fans will not stop suddenly even if it fails, preventing a sudden temperature rise in the cabinet 4.

  In the present embodiment, the second blower 15 is constituted by two centrifugal fans, that is, the first centrifugal fan 22 and the second centrifugal fan 23. However, the first blower 14 is similarly constituted by two centrifugal fans. In this case, when the first blower 14 breaks down, it is possible to prevent the air blow on the first environment side from abruptly stopping, and it is possible to prevent a sudden temperature rise in the cabinet 4.

  In addition, by configuring the second blower 15 as two centrifugal fans with the first centrifugal fan 22 and the second centrifugal fan 23, the apparatus can be reduced in size.

  That is, the first centrifugal fan 22 and the second centrifugal fan 23 configured by the same fan and motor are configured such that the fan diameter is smaller than the width of the discharge surface 18 and larger than ½ of the width. Since the central axis of the fan is arranged on the first diagonal line 21 of the discharge surface 18, the amount of blown air can be increased as compared with the case where one centrifugal fan is arranged on the discharge surface 18. As a result, the size of the apparatus can be reduced.

  Furthermore, by arranging a part of the partition wall 26 on the second diagonal line 29, the suction ports of the first centrifugal fan 22 and the second centrifugal fan 23 can be evenly arranged with respect to the discharge surface 18. The air flowing through the heat exchanger 13 can be made uniform, and the air can be efficiently sucked into the second blower 15 to discharge the heat in the cabinet 4.

  The present invention can be applied to uses of a heat exchange device and a heating element storage device using the same.

DESCRIPTION OF SYMBOLS 1 Building 2 Rooftop 3 Mobile phone base station 4 Cabinet 5 Transmission / reception device 6 Heat exchange device 7 First intake port 8 First discharge port 9 First air path 10 Second intake port 11 Second discharge port 12 Second wind Path 13 Heat exchanger 14 First blower 15 Second blower 16 First blowout port 17 First suction port 18 Discharge surface 19 Second blowout port 20 Second suction port 21 First diagonal 22 First centrifugal fan 23 Second Centrifugal fan 24 Top panel 25 Side wall 26 Bulkhead 27 First opening 28 Second opening

Claims (6)

A heat exchanger communicating alternately first air passage and the second air passage across the heat transfer plate,
The first air path is provided with a first blower ,
A second blower is provided in the second air passage;
The second blower is composed of two first centrifugal fans and a second centrifugal fan that are arranged diagonally on the discharge surface with the suction port facing the discharge surface of the heat exchanger ,
And the second blower changes the direction of the second air path blown out from the discharge surface of the heat exchanger so as to be orthogonal to the top surface of the heat exchanger,
Furthermore, the heat exchange apparatus which provided the partition along the 2nd air path between the said 1st centrifugal fan and the said 2nd centrifugal fan . A second outlet leading to the second environment is formed at the lower end of the partition wall,
2. The heat exchange device according to claim 1, wherein the second blowing port has an area of a blowing port of a first centrifugal fan disposed on an upper side smaller than an area of a blowing port of a second centrifugal fan disposed on a lower side. The first centrifugal fan and the second centrifugal fan are composed of the same blade and motor,
The partition wall, the heat exchange apparatus 請 Motomeko 1, wherein the extended from the position where the rotation direction of each of the fan are opposed to each other to outlet of the first centrifugal fan and a second centrifugal fan of. The heat exchanger according to claim 3 , wherein the partition wall is provided so as to intersect with a diagonal line connecting the rotation axis of the first centrifugal fan and the rotation axis of the second centrifugal fan. The heat exchanging apparatus according to claim 1, wherein the first centrifugal fan has a side wall communicating with the blowout port along the rotation direction, and the second centrifugal fan blows directly to the blowout port. Has a cabinet to store the heating element inside,
A first air passage that draws in outside air from both sides of the cabinet and blows it out from the back;
Forming a second air passage for circulating the air in the lower space on the vertical plane from an upper portion of said cabinet,
It said first air passage and in correspondence with the second air passage at the top of the cabinet with a heat exchange apparatus according claims 1-5 which is disposed an air passage, the heat generating member housing apparatus configured to perform cooling in the cabinet .

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