JP6225342B2 - Panel cooling device and panel cabinet with panel cooling device - Google Patents

Description

  The present invention relates to a panel cooling device for cooling an internal device such as an electronic device housed in a panel cabinet, and a panel cabinet provided with the panel cooling device.

  Board cabinets containing internal equipment such as electronic equipment have a problem that the temperature inside the board cabinet rises due to heat generated by the internal equipment. Therefore, as in Patent Document 1, an internal fan and an external fan are installed on both sides of a cooling device body having a Peltier element, and the internal fan causes the internal air to flow through the heat sink on the heat absorption side. A technology relating to a panel cooling device is disclosed in which the inside of a cabinet is cooled and the outside fan radiates heat from a heat sink on the heat radiation side to the outside.

  The in-panel fan is usually attached to the front side of the cooling device main body on the heat absorption side. However, especially when an exhaust fan is attached to the internal equipment, the cool air discharged from the internal fan interferes with the warm air exhausted by the exhaust fan of the internal equipment, thereby reducing the cooling efficiency inside the panel cabinet. There's a problem.

  In order to solve the above-mentioned problem, as shown in Patent Document 2, a panel cooling device is attached to the upper or lower part of the internal device, and the discharge direction of the cold air by the internal fan can be changed to the vertical direction. A technique for mounting is disclosed. However, depending on the arrangement of the internal equipment, it may not be possible to secure a space for mounting the panel cooling device above or below the internal equipment. In this case, the panel cooling system must be attached to the door or side panel. Even if the discharge direction of the cool air is changed to the vertical direction by the guide member, the cool air and the warm air exhausted by the exhaust fan of the internal device interfere with each other, and there is a problem that the circulation efficiency of the cool air is lowered. .

JP 2012-195567 A JP-A-2005-005651

  The object of the present invention is to solve the above-described conventional problems, and to provide a panel cooling device that can efficiently cool the inside of the panel cabinet without being affected by the arrangement of internal devices and the warming of the exhaust fan, and It is to provide a panel cabinet equipped with a panel cooling device.

The present invention made to solve the above problems is a panel cooling device that cools the inside of a panel cabinet containing internal equipment such as electronic equipment and is attached to a door or side panel of the panel cabinet, A panel fan that discharges cool air into the panel cabinet, and a guide member that can change the discharge direction of the cool air by the panel fan in a horizontal direction or a vertical direction, a front direction inside the panel of the panel cooling device And the fan in the panel is a centrifugal fan, and the centrifugal fan is attached to the inside of the guide member .

Space invention of claim 2, a board cabinet having a panel cooling system of claim 1, wherein the outlet of the cold air formed in the guide member, and the internal equipment and該盤cabinet It is characterized by having come to the department.

  According to the panel cooling device according to the present invention, the guide member that can change the discharge direction of the cold air by the panel fan to the horizontal direction or the vertical direction is attached in the front direction inside the panel of the cooling device main body. Thereby, it becomes possible to change the direction in which the cool air is discharged in accordance with the in-panel environment.

Further, according to the present invention, since the in- panel fan is a centrifugal fan, the cold air can be discharged in the centrifugal direction, and the cold air is discharged from the discharge port of the guide member without returning to the axial flow direction. It is possible to suppress the loss of the air, and it is possible to circulate the cold air inside the cabinet for the board more efficiently. In addition, by attaching the centrifugal fan to the inside of the guide member, it is possible to install the centrifugal fan by attaching the guide member even when there is no centrifugal fan attachment mechanism inside the panel of the cooling device body.

According to the second aspect of the present invention, the cold air discharge port formed in the guide member is allowed to face the space between the internal device and the panel cabinet. As a result, the cool air can be discharged into the space between the internal device and the cabinet for the cabinet, and the inside of the cabinet for the cabinet can be cooled regardless of the position of the internal device. Since the exhausted warm air does not interfere, it is possible to circulate the cool air more efficiently inside the panel cabinet.

It is a vertical section perspective view showing the board cooling device of this embodiment. It is a horizontal sectional view showing a panel cooling device of this embodiment. It is a perspective view which shows a guide member. It is a vertical cross-sectional perspective view which shows 2nd Embodiment. It is a vertical sectional view showing a second embodiment. It is a vertical cross-sectional perspective view which shows 3rd Embodiment. It is a horizontal sectional view showing a 3rd embodiment. It is a horizontal sectional view showing a 4th embodiment.

Preferred embodiments of the present invention are shown below. The arrows shown in FIGS. 2, 5, and 8 indicate the direction of cool air.
As shown in FIG. 1 and FIG. 2, an internal device 4 such as an electronic device is supported by a mount rail 5 inside a cabinet 3 for the panel surrounded by a door 1 and a side plate panel 2. The internal device 4 includes an exhaust fan 17 for exhausting heat generated in the internal device 4 itself. The warm air exhausted from the exhaust fan 17 increases the temperature in the panel. The exhaust fan 17 is attached to the door 1 side of the internal device 4, and warm air exhausted from the exhaust fan 17 flows in the direction of the door 1. As shown in FIG. 2, a space 23 is provided between the internal device 4 and the left and right side panel 2.

  In order to cool the inside of the panel cabinet 3, a panel cooling device 6 is attached to the door 1. The panel cooling device 6 has a Peltier element 7 attached to the center, a cooling device main body 8 that partitions the panel cooling device 6 into a heat absorption side and a heat radiation side, and a front side on the heat absorption side that is the inside of the cooling device main body 8. It consists of a centrifugal fan 9 as an in-panel fan attached in the direction and an out-of-board fan 10 attached to the heat radiating side of the cooling device body 8. Further, a heat absorption side heat sink 12 is attached to the heat absorption side of the Peltier element 7, and a heat dissipation side heat sink 16 is attached to the heat dissipation side. As shown in FIG. 2, the cooling device body 8 is attached to the inside of the door 1, that is, inside the panel, and an opening through which the air cooled by the heat absorption side heat sink 12 is discharged on the heat absorption side front surface of the cooling device body 8. A portion 13 is formed. Further, among the heat absorption side of the cooling device main body 8, an intake hole 11 for sucking air inside the panel cabinet 3 is formed on the front surface, the upper surface, and the side surface. Further, in this embodiment, the exhaust fan 17 of the internal device 4 is attached to the door 1 side, and the panel cooling device 6 is attached to the door 1, but the exhaust fan 17 of the internal device 4 is attached to the side plate panel 2 side. The panel cooling device 6 may be attached to the side panel 2.

  A guide member 14 is detachably attached by screwing so as to cover the opening 13 in the front direction on the heat absorption side of the cooling device main body 8. As shown in FIG. 3, the guide member 14 has a box shape, and a discharge port 15 for discharging air is formed at the edge of the front surface 19 of the guide member. A hole-shaped portion (not shown) corresponding to the opening 13 is formed on the back surface 20 of the guide member, and the centrifugal fan 9 is attached inside the guide member 14. A slope 21 is formed from the guide member back surface 20 side of the discharge port 15 toward the guide member front surface 19 side. Note that the same number of guide members 14 are preferably installed corresponding to the openings 13. In addition, the inclined surface 21 of the guide member 14 may be an arcuate surface for efficiently discharging cool air, or any other shape that efficiently discharges the cool air of the centrifugal fan 9 may be used.

  Therefore, when the centrifugal fan 9 is operated, the air in the panel is sucked by the suction holes 11 and then cooled by flowing to the heat absorption side heat sink 12, and the cooled air passes through the opening 13. Then, it is discharged into the board cabinet 3 from the discharge port 15 formed in the guide member 14 by the centrifugal fan 9. Further, the heat transferred to the heat radiation side heat sink 16 through the Peltier element 7 is released to the outside of the board by the outside fan 10. Thereby, the inside of the board cabinet 3 can be cooled.

  Since the centrifugal fan 9 attached as an in-panel fan discharges cold air in the centrifugal direction, the cold air is discharged from the discharge port 15 of the guide member 14 without returning to the axial flow direction, thereby suppressing the loss of wind power. Therefore, it is possible to circulate the cold air inside the panel cabinet 3 more efficiently. Furthermore, since the thickness of the guide member 14 can be reduced by using the centrifugal fan 9, the internal space of the board cabinet 3 can be secured more widely. In addition, when there is no place where the centrifugal fan 9 can be attached to the cooling device main body 8 due to the presence of the opening 13, the attachment mechanism of the centrifugal fan 9 can be provided across the opening 13. It is conceivable that the flow of cold air is prevented by the increase or the mounting mechanism. Therefore, in this embodiment, the centrifugal fan 9 is attached to the inside of the guide member 14, and the centrifugal fan 9 can be attached by installing the guide member 14 even when the cooling device main body 8 has no attachment mechanism. Further, as shown in FIG. 7, the in-panel fan may be used as the axial fan 22, in which case the axial fan 22 may be formed inside the guide member 14, and the front side of the cooling device body 8 on the heat absorption side. It may be attached to. By using the axial fan 22, the in-panel fan can be installed at a lower cost.

  Furthermore, in this embodiment, as shown in FIG. 2, the guide members 14 are installed side by side in the direction in which the cool air is discharged in the horizontal direction, and the cool air is discharged into the space 23 between the internal device 4 and the side plate panel 2. The discharge port 15 faces in the direction of As a result, the cool air is not affected by the position of the internal device 4, and further, the cool air and the warm air exhausted from the exhaust fan 17 of the internal device 4 do not interfere with each other, so that the inside of the panel cabinet 3 is cooled more efficiently. It becomes possible.

  As a second embodiment, as shown in FIG. 4 and FIG. 5, when there is sufficient space in the lower part of the internal device 4, the guide member 14 is attached in the direction in which cold air is discharged in the vertical direction and discharged. By arranging the outlet 15 so as to face the space 23 between the internal device 4 and the board cabinet bottom surface 18, cold air circulates in the lower part of the internal device 4 and further warm air exhausted from the exhaust fan 17 of the internal device 4. Therefore, the inside of the panel cabinet 3 can be efficiently cooled.

  Similarly, when there is a sufficient space above the internal device 4, the guide member 14 is mounted in a direction in which cool air is discharged in the vertical direction, and the discharge port 15 is a space between the internal device 4 and the cabinet ceiling surface. Can be placed facing the part. Further, when there is sufficient space in the upper part and the lower part of the internal device 4, the guide member 14 is mounted in a direction in which cold air is discharged in the vertical direction, and the one discharge port 15 is connected to the internal device 4 and the cabinet cabinet ceiling. The other discharge port 15 may be disposed so as to face the space portion 23 between the internal device 4 and the cabinet bottom surface 18 and face the space portion with the surface.

  In the case where the internal device 4 is side intake, it is desirable that the guide members 14 are mounted in a row in the direction in which the cool air is discharged in the horizontal direction, as in FIG.

  As described above, the mounting direction of the guide member 14 can be changed to the horizontal direction or the vertical direction, and the cool air is discharged into the space 23 between the internal device 4 and the panel cabinet 3, regardless of the position of the internal device 4. The inside of the board cabinet 3 can be cooled, and the cold air and the warm air exhausted by the exhaust fan 17 do not interfere with each other, so that the cold air can be circulated inside the board cabinet 3 more efficiently.

  In addition, since it is preferable that the guide member 14 is attached according to the number of the opening parts 13 as described above, when the two opening parts 13 are provided in the horizontal direction as shown in FIG. The guide member 14 is mounted in a row in the direction in which the cool air is discharged in the horizontal direction, but has two openings 13 in the vertical direction as shown in FIGS. 6 and 7 as the third embodiment. The guide member 14 can be mounted in a row in the direction in which cold air is discharged in the horizontal direction.

  Further, when the cool air discharged from the discharge port 15 collides with the warm air exhausted from the exhaust fan 17 of the internal device 4, or the position of the discharge port 15 is relative to the space 23 between the internal device 4 and the side panel 2. In the case where they are separated, as shown in FIG. 8 as the fourth embodiment, the length of the guide member 14 is extended, and the position of the discharge port 15 is made closer to the side plate panel 2 side, so that cold air is used for the board. It does not matter if it is circulated inside the cabinet 3. It goes without saying that this can also be applied when the mounting direction of the guide member 14 and the direction of the discharge port 15 are different from those of the fourth embodiment.

  The guide member 14 according to the present invention can be used not only for the Peltier-type panel cooling device 6 but also for the compressor-type panel cooling device and other panel heat exchangers.

DESCRIPTION OF SYMBOLS 1 Door 2 Side plate panel 3 Panel cabinet 4 Internal equipment 5 Mount rail 6 Panel cooling device 7 Peltier element 8 Cooling device main body 9 Centrifugal fan 10 Outboard fan 11 Intake hole 12 Heat absorption side heat sink 13 Opening part 14 Guide member 15 Discharge port 16 Heat radiation heat sink 17 Exhaust fan 18 Panel cabinet bottom 19 Guide member front surface 20 Guide member rear surface 21 Slope 22 Axial fan 23 Space

Claims (2)

A panel cooling device that cools the inside of a cabinet for housing an internal device such as an electronic device and is attached to a door or side panel of the cabinet, and discharges cool air into the cabinet for the board And a guide member capable of changing the discharge direction of the cold air by the fan in the panel to a horizontal direction or a vertical direction, and mounted in the front direction inside the panel of the panel cooling device , and the fan in the panel Is a centrifugal fan, and the centrifugal fan is mounted inside the guide member . 2. A panel cabinet comprising the panel cooling device according to claim 1, wherein a cooling air discharge port formed in the guide member faces a space between the internal device and the panel cabinet. A panel cabinet equipped with a panel cooling device.