JP5829992B2 - Electrical equipment storage device - Google Patents

Description

  The present invention relates to an electric equipment storage device, and more particularly to an apparatus for storing a plurality of electric equipments in a multistage stack inside a housing.

  Regarding a cooling structure for a panel that houses a power conversion device, a configuration in which a box body that houses a semiconductor switch element is tilted and housed in the board has been disclosed (for example, see Patent Document 1). Moreover, the structure which forms the ventilation path which runs up and down in a housing | casing between the back surface of the unit tray which unitized the power converter device, and the backplate of a housing | casing is disclosed (for example, refer patent document 2).

JP-A-6-62574 JP 2006-311679 A

  When air-cooled module type power converters are stacked and housed in a panel, as the number of stages increases, the exhaust air from the lower module is obstructed by the exhaust from the upper module, making it difficult to exhaust the ceiling. For this reason, conventionally, measures have been taken such as mounting a large fan on the ceiling and exhausting, or ensuring a sufficiently large exhaust space on the back side of the housing. However, when a large fan is provided, there are problems such as an increase in the cost of the apparatus and an increase in power cost. If the rear exhaust space is increased, the depth dimension of the apparatus increases, resulting in a problem that the apparatus becomes large.

  The present invention has been made in view of the above problems, and a main object of the present invention is to provide an electrical equipment storage device that enables downsizing of the device and downsizing of an exhaust fan.

  An electrical equipment storage device according to the present invention includes a hollow box-shaped housing having a ceiling surface and a pair of side surfaces, a plurality of electrical equipment modules arranged in a stack in the housing, and a ceiling surface. And a fan for ventilating from the inside to the outside. By disposing the electric device module in one side of the side surface inside the housing, a ventilation path extending in the vertical direction is formed on the other side of the side surface inside the housing.

  Preferably, in the electric device storage device, the fan is disposed over the electric device module and over the air passage. Preferably, the fan is disposed on the back side of the housing.

  According to the electric equipment storage device of the present invention, the device can be downsized, and the exhaust fan can be downsized.

It is the schematic diagram which looked at the electric equipment storage apparatus from the front. It is the schematic diagram which planarly viewed the electric equipment storage apparatus. It is the schematic diagram which looked at the electric equipment module from the side. It is the schematic diagram which looked back at the electric equipment storage apparatus.

  Embodiments of the present invention will be described below with reference to the drawings. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

  FIG. 1 is a schematic view of the electrical equipment storage device 1 as viewed from the front. FIG. 2 is a schematic view of the electric device storage device 1 in plan view. As shown in FIGS. 1 and 2, the electrical device storage apparatus 1 includes a housing 10. The housing | casing 10 is formed in the hollow box shape, and the hollow space is formed in the inside. The electric device storage device 1 is provided in the space so as to be able to store the electric device module 20, another electric device, or any other device. The casing 10 has a substantially rectangular outer shape, and includes a ceiling surface 12, a front surface 14, a pair of side surfaces 15 and 16, and a back surface 18.

  A plurality of electrical device modules 20 are housed in a hollow space inside the housing 10. The plurality of electrical device modules 20 are arranged in a state of being stacked in the housing 10. For example, the interior of the housing 10 is partitioned into a plurality of module housing chambers by partitioning with a plurality of shelf plates (not shown), and the electrical device module 20 is mounted on each shelf plate and housed in each module housing chamber. The device module 20 may be stored in the housing 10.

  An opening / closing door may be provided on the front surface 14 side of the housing 10, and in that case, a door that opens and closes the entire housing 10 may be provided, or a door that opens and closes for each module housing chamber may be provided. Good. A part of the opening / closing door may be formed of a reticulated mesh member so that outside air can flow into the housing 10. Further, for example, an opening may be formed in a part of the side surfaces 15 and 16 of the housing 10, and outside air may be sucked into the housing 10 through the opening.

  The electric device module 20 is disposed so as to be offset toward one side of the pair of side surfaces 15 and 16 inside the housing 10. In the present embodiment, the electric device module 20 is unevenly distributed on the side surface 16 side. Therefore, there is a space where the electrical device module 20 is not disposed on the side surface 15 side inside the housing 10. The space extends up and down in the housing 10 and reaches the ceiling surface 12. Part or all of the space between the electrical device module 20 and the side surface 15 of the housing 10 where the electrical device module 20 is not disposed functions as a ventilation path 11 that allows air to flow in the vertical direction. .

  Although FIG. 1 illustrates an example in which eight electrical device modules 20 are stacked, the present invention is not limited to this example, and the number of electrical device modules 20 may be arbitrary. The electric equipment storage apparatus 1 of this Embodiment can be used more suitably with respect to the structure by which the electric equipment module 20 was accommodated in multiple stages. The electrical device module 20 is provided so as to be freely inserted into and removed from the housing 10 from the front surface 14 side of the housing 10.

  A fan storage case 30 is attached on the ceiling surface 12 of the housing 10, and three fans 32 are arranged in the fan storage case 30. An exhaust port is formed in the ceiling surface 12 of the housing 10, and the fan 32 is provided in the exhaust port. When the fan 32 is operated, the air is vented from the inside of the housing 10 to the outside, and the air inside the housing 10 is discharged outside the housing 10.

  The electric equipment module 20 is an arbitrary electric equipment such as an uninterruptible power supply or a power converter, and is a heating element that generates heat when energized. Since it is difficult to suppress the temperature rise in the housing 10 by natural ventilation alone due to the heat generated by the electrical device module 20, the fan 10 is provided to cool the housing 10 forcibly. . By rotating the fan 32, a flow of cooling air is generated. The cooling air passes through the electric device module 20, cools through the electric device module 20, and is then exhausted outside the housing 10.

  As shown in FIG. 1, the fan 32 is disposed over the electrical device module 20 and over the ventilation path 11. Further, as shown in FIG. 2, the fan 32 is disposed on the back surface 18 side of the housing 10. By disposing the fan 32 in this way, the heat generated by the electric device module 20 can be efficiently transferred to the outside of the housing 10 via the back surface 18 side of the internal space of the housing 10 or the air passage 11. Since heat can be dissipated, the inside of the housing 10 can be suitably cooled by ventilation.

  FIG. 3 is a schematic view of the electric device module 20 as viewed from the side. The electrical equipment module 20 has a front surface 24 and a back surface 28. When the electrical device module 20 is mounted in the housing 10, the front surface 24 of the electrical device module 20 faces the front surface 14 of the housing 10 and the back surface 28 of the electrical device module 20 faces the back surface 18 of the housing 10. The electric device module 20 is arranged.

  The electrical device module 20 has openings on the front surface 24 and the back surface 28, and a fan 22 is provided on the back surface 28 side. When the fan 22 is operated, air flows in from the front surface 24 side of the electric device module 20, and the electric device module 20 is cooled by the air that flows in. By generating an air flow that flows through the electrical device module 20 from the front surface 24 side to the back surface 28 side, heat generated during operation of the electrical device module 20 is removed and heat is radiated from the back surface 28 side.

  Each of the plurality of electric device modules 20 has the above-described configuration described with reference to FIG. 3, and separately sucks air from the front surface 24 side and exhausts air to the back surface 28 side for each of the electric device modules 20. Air flow is generated. The air heated by the heat exchange when cooling the electric device module 20 flows to the back surface 28 side of the electric device module 20, and further rises inside the housing 10 by the operation of the fan 32. Is discharged.

  FIG. 4 is a schematic view of the electrical equipment storage device 1 as viewed from the back. In FIG. 4, the flow of air inside the housing 10 that is generated in accordance with the operation of the fan 32 is illustrated by white arrows. By operation of the fan 22 provided in each electric device module 20, air flows through the electric device module 20. At this time, the air takes heat from the electric device module 20 which is a heating element, and cools the electric device module 20. The air whose temperature has increased due to heat transfer from the electric device module 20 reaches the back surface 18 side of the housing 10.

  Thereafter, the air rises in the housing 10 toward the ceiling surface 12 by the operation of the fan 32. At this time, the air that has circulated through the upper-side electrical device module 20 among the plurality of stacked electrical device modules 20 rises as it is inside the housing 10 and is exhausted from the upper-side electrical device module 20. Is discharged out of the housing 10. On the other hand, it is difficult for the air that has circulated through the lower electric device module 20 to be disturbed by the exhaust of the upper electric device module 20 and to flow upward in the housing 10 as it is.

  Therefore, in the electrical equipment storage apparatus 1 of the present embodiment, the air passage 11 is formed as another route in which the air that has circulated through the lower electrical equipment module 20 rises toward the ceiling surface 12. As shown in FIG. 4, the air that has reached the back surface 18 side through the lower electric device module 20 does not rise as it is and flows into the air passage 11 on the side surface 15 side. The air ascends in the ventilation path 11 extending in the vertical direction, reaches the ceiling surface 12 and is exhausted from the ceiling, and the exhaust heat of the lower electric device module 20 is exhausted outside the housing 10. The air passage 11 may be appropriately provided with a rectifying plate for rectifying the air flow inside the housing 10.

  As a result, it is possible to prevent the air that has received heat from the lower-side electrical device module 20 from staying near the floor surface inside the housing 10. The temperature rise of the electric device module 20 on the side can be suppressed. The temperature of the lower electric device module 20 can be kept low, the temperature difference between the upper electric device module 20 and the lower electric device module 20 can be reduced, and the temperature distribution inside the housing 10 can be improved. It becomes possible.

  A flow of cooling air that flows through the inside of the housing 10 is always formed, and the electric device module 20 accommodated in the housing 10 can be satisfactorily cooled, so that the inside of the housing 10 can be reliably prevented from becoming high temperature. Can do. Moreover, since the temperature rise of the cooling fans 22 and 32 is suppressed, the lifetime of the fans 22 and 32 can be extended. There is no need to increase the size of the fan 32 in order to reliably and sufficiently cool all of the plurality of multi-stacked electrical equipment modules 20, and there is no need for a large exhaust space on the back surface 18 side inside the housing 10. Therefore, the electrical equipment storage apparatus 1 can be reduced in size, and in addition, the exhaust fan 32 can be reduced in size.

  In the electrical device storage device 1 in which the electrical device modules 20 are stacked, the peripheral circuit of the electrical device module 20 is often disposed inside the housing 10. At this time, the peripheral circuit is placed in the electrical device module 20. Adjacent to each other. As shown in FIGS. 1 and 4, when the electric device module 20 is arranged so as to be offset toward the side surface 16, a peripheral circuit can be arranged in a space between the electric device module 20 and the side surface 15.

  If the space provided on the side surface side of the electric device module 20 for the arrangement of the peripheral circuit is used as the air passage 11, it is not necessary to provide a space for forming the air passage 11 in the housing 10, and the electric device is accommodated. The enlargement of the apparatus 1 can be suppressed more reliably. That is, it is not necessary for the entire space between the electric device module 20 and the side surface 15 to be hollow. As long as the function as the air passage 11 is not impaired, another electric device may be arranged in the space.

  Although the embodiment of the present invention has been described as above, the embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Electrical equipment storage apparatus, 10 Case, 11 Air passage, 12 Ceiling surface, 14 Front surface, 15, 16 Side surface, 18 Rear surface, 20 Electrical equipment module, 22 Fan, 24 Front surface, 28 Rear surface, 30 Fan storage case, 32 Fan .

Claims (1)

A hollow box-shaped housing having a ceiling surface and a pair of side surfaces;
A plurality of electrical equipment modules , arranged in a stack and having a module exhaust fan provided on the back side ;
A ceiling fan provided on the ceiling surface and ventilating from the inside of the housing to the outside,
In the interior of the housing, the electrical device module is disposed so as to be offset toward one side of the side surface, thereby forming a ventilation path extending in the vertical direction on the other side of the side surface inside the housing ,
The ceiling fan, and above the electrical equipment module, the over and above the air passage, wherein Ru is disposed on the rear side of the housing, an electrical equipment storage device.

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