JP2022136522A - Electric equipment housing board - Google Patents

Abstract

To provide technique capable of contributing to a housing efficiency and a cooling efficiency of an internal space in an electric equipment housing board.SOLUTION: An electric equipment housing board comprises: a space portion partition wall 16 that partitions an internal space of a board 1A into an upper stage space portion and a lower stage space portion; an upper stage partition wall 17 that partitions the upper stage space portion into an upper stage front surface-side housing chamber 21 and an upper stage back surface-side housing chamber 22; a lower stage front surface-side housing chamber 31 that is provided in a board front surface portion 11 side in the lower stage space portion; and a lower stage back surface-side duct 32 that is provided in a board back surface portion 12-side in the lower stage space portion. The space portion partition wall 16 comprises: a front surface side communication port 18 that communicates both spaces of the upper stage front surface-side housing chamber 21 and the lower stage front surface-side housing chamber 31; and a back surface side communication port 19 that communicates both spaces of the upper stage back surface-side housing chamber 22 and the lower stage back surface-side duct 32. Then, outside air is taken from an upper stage suction port 11a and a lower stage suction port 11b and is ventilated into an internal space of the board 1A by operating a ventilator 14b provided in an exhaust port 14a side of a board ceiling portion 14.SELECTED DRAWING: Figure 3

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical equipment housing panel that is applied to, for example, various power equipment and electrical equipment.

In electric equipment housing boards (for example, boards housing series multiplex inverters; hereinafter simply referred to as boards) applied in electric power equipment, electrical equipment, etc., heat-generating devices such as power semiconductors (IGBTs, etc.) Houses electrical equipment equipped with electronic components and control circuits (e.g., electronic component units such as inverter units), and appropriately cools the internal space of the panel (hereinafter simply referred to as the panel internal space) to raise the temperature. is known.

For example, Patent Document 1 discloses a box-shaped board formed by assembling a plurality of board frames (for example, panel-shaped or columnar board frames) (for example, FIG. 1 of Patent Document 1). In this board, for example, a storage room for storing electric equipment is formed on the front side of the board inside the board space, and a storage room is formed on the back side of the board inside the board space so as to extend in the vertical direction of the board. A duct (exhaust side duct) is formed in the Also, in the panel front part, the panel ceiling part, etc., an intake port and an exhaust port are provided, and a ventilator (intake fan and exhaust fan) is appropriately provided.

In the space inside the board, in addition to housing the electrical equipment as described above, low-voltage parts (electrically low-voltage parts; for example, control units, relay circuits, UPS, etc.) and high-voltage parts (electrically high-voltage parts; for example, reactors, various electrical components such as capacitors, resistors, etc.).

For example, in Patent Document 2, there is a configuration in which the internal space of the board is divided into multiple stages, and a plurality of types of electric devices are appropriately distributed and stored in each of the divided stages (hereinafter, appropriately referred to as a multistage storage configuration). is disclosed (for example, FIG. 1 of Patent Document 2).

Japanese Patent No. 5648188 Japanese Patent No. 6088157

In a multi-stage storage configuration, if a duct is simply provided on the back side of the board inner space, the storage space of each stage becomes narrow, and it may be difficult to achieve the desired storage.

From the viewpoint of improving the cooling efficiency of the internal space of the board, it is conceivable to increase the air intake efficiency (air intake area) by providing a duct (air intake side duct) also on the board front side of the internal space of the board, for example.

However, in the multistage storage structure, if ducts are simply provided on both the board back side and the board front side of the board internal space, the storage space of each stage will be further reduced. Furthermore, due to the increase in the number of parts related to the duct, the pressure loss in the space inside the panel increases, and the panel structure becomes complicated and large, resulting in the possibility that the desired cooling efficiency cannot be obtained. .

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electrical equipment storage panel that can contribute to the storage efficiency and cooling efficiency of the space inside the panel.

An electric equipment storage board according to the present invention is a creation capable of solving the above-mentioned problems, and one aspect thereof is a box-shaped board formed by assembling a plurality of board frames, and an upper space in the inner space of the board. and a partition wall that divides the upper space into an upper front storage room located on the front side of the board and an upper rear storage room located on the back side of the board. a wall, a lower front side storage chamber located on the board front side in the lower space, and a lower back side duct located on the board back side in the lower space and communicating with the lower front side storage room. and

Further, the space partition wall includes a front communication port that communicates between the upper front storage chamber and the lower front storage chamber,
and a back-side communication port communicating between the upper-stage back-side storage chamber and the lower-stage back-side duct.

The board includes an upper suction port provided on the front side of the board on the side of the upper space and communicating with the upper storage chamber, and an upper air inlet provided on the side of the lower space on the front side of the board, and the lower stage. a lower intake port communicating with the front storage chamber, an exhaust port provided on the side of the upper rear storage chamber in the panel ceiling portion and communicating with the upper rear storage chamber, and the exhaust in the panel ceiling portion and a ventilator provided on the mouth side and capable of exhausting the gas in the upper rear side storage chamber to the outer peripheral side of the board.

In the above aspect, a ventilation guide is further provided between the electrical device and the panel front part in a state where the electrical device is stored in the lower front storage chamber, and the ventilation guide It extends toward the bottom side of the board from a position closer to the front side of the space partition wall than the front side communication port, and inclines so as to approach the side of the lower back side duct as it approaches the leading end in the direction of extension. It may be characterized in that the tip portion in the extending direction is positioned at a predetermined distance from the bottom portion of the board.

The storage chamber partition wall partitioning the upper rear side storage chamber into an upper storage chamber and a lower storage chamber is further provided, and the storage chamber partition wall extends in one of the cross directions intersecting the vertical direction of the board. , a storage chamber communication port penetrating in the vertical direction may be provided.

A plurality of electrical components including low-voltage components and high-voltage components are accommodated in the upper space. Among the electrical components, the low-voltage components are arranged in the upper front storage chamber. The parts may be arranged in the upper rear storage chamber.

As described above, according to the present invention, it is possible to contribute to the storage efficiency and cooling efficiency of the internal space in the electrical equipment storage panel.

The schematic perspective view for demonstrating board 1A (or board 1B, or board 1C). The schematic block diagram which looked at the inside of board 1A in the state which removed the board front part 11. FIG. FIG. 2 is a schematic diagram showing the inside of the board 1A with the board side portion 13a removed. Schematic cross-sectional view of the board 1A (schematic cross-sectional view corresponding to the XX line cross section of FIG. 3). FIG. 2 is a schematic diagram showing the inside of the board 1B with the board front part 11 removed. FIG. 2 is a schematic diagram showing the inside of the board 1B with the board side portion 13a removed. A schematic cross-sectional view of the board 1C (a schematic cross-sectional view corresponding to the XX line cross section of FIG. 3). The schematic block diagram which looked at the inside of board 1C in the state which removed the board front part 11. FIG. FIG. 4 is a schematic perspective view for explaining a storage room partition wall 5;

In the electrical equipment storage panel of the embodiment of the present invention, the configuration in which ducts are simply provided on the back side of the panel and the front side of the panel in the inner space of the multi-stage storage configuration (hereinafter simply referred to as the conventional configuration as appropriate) They are completely different.

That is, the board of this embodiment includes a space partition wall that divides the internal space of the board into an upper space and a lower space, and an upper storage room on the front side of the board and an upper storage room on the back side of the board. An upper partition wall that separates an upper back side storage room, a lower front side storage room provided on the front side of the board in the lower space, and a lower back side duct provided on the back side of the board in the lower space and

Further, in the space partition wall, a front side communication port communicating between the upper front storage chamber and the lower front storage chamber, and a duct on the upper back side storage chamber and the lower back side storage chamber. and a back-side communication port that communicates between the two.

Then, by operating the ventilator provided on the exhaust port side of the panel ceiling, outside air can be taken in from the upper stage intake port and the lower stage intake port provided on the front surface of the panel, and ventilated into the space inside the panel. It is configured.

Specifically, the outside air taken in from the upper intake port is first taken into the upper front storage chamber, and then moves to the lower front storage chamber through the front communication port, then the lower rear duct, the rear It moves in the order of the side communication port, the upper rear side storage chamber, and the exhaust port, and is exhausted to the outer peripheral side of the board.

That is, the upper front storage chamber communicates with the lower front storage chamber through the front communication port, and can function as both a storage space and a duct (air intake side duct). I can say

In addition, the outside air taken in from the lower intake port is first taken into the lower front storage chamber, then moves in the order of the lower rear duct, the rear communication port, the upper rear storage chamber, and the exhaust port. is exhausted to the outer peripheral side of the

In other words, the upper rear storage chamber communicates with the lower rear duct through the rear communication port, and can be said to function as both a storage space and a duct (exhaust side duct). .

Therefore, according to the panel of the present embodiment, the storage space in the panel interior space can be used not only to store electrical equipment, but also to function as a duct. , it is possible to obtain excellent cooling efficiency. Moreover, since it is easier to secure a desired storage space than in the conventional configuration, it is possible to obtain excellent storage efficiency. Furthermore, compared with the conventional configuration, the number of parts related to the duct can be reduced, which may contribute to the simplification and miniaturization of the panel structure.

As long as the board of this embodiment is configured so that the storage space inside the board can function as a duct as described above, the common technical knowledge of various fields (for example, the field of boards that house serial multiplex inverters, etc.) can be applied. It is possible to appropriately apply and modify the design, and examples thereof include Examples 1 to 3 shown below. In Examples 1 to 3, the same reference numerals are assigned to the same components, and detailed description thereof will be omitted as appropriate.

<<Plate 1A according to Example 1>>
<Main configuration of board 1A>
1 to 4 are schematic configuration diagrams for explaining the board 1A according to the first embodiment. In this board 1A, a plurality of panel-shaped or column-shaped board frames are assembled into a substantially box-like shape, and the board internal space 10 includes a board front part 11, a board back part 12, board side parts 13a and 13b, and a board ceiling part. 14, and is surrounded by a board bottom portion 15. As shown in FIG.

The board internal space 10 is partitioned into an upper space 2 and a lower space 3 by a flat plate-like space partition wall 16 extending in the horizontal direction of the board 1A at the center of the board internal space 10. It is Specifically, in the case of the space partition wall 16 in the drawing, it has a shape having a support portion 16a capable of supporting a reactor S31, which will be described later.

In the upper space portion 2, in the central portion of the upper space portion 2 (the central portion near the board front portion 11 in the figure), the vertical direction of the board 1A (hereinafter simply referred to as the vertical direction as appropriate) and the board side portion 13a. , 13b (hereinafter simply referred to as the side-to-side direction). The upper partition wall 17 partitions the upper space 2 into an upper front storage chamber 21 located on the board front surface 11 side and an upper rear storage chamber 22 located on the board rear surface 12 side. there is

In the lower space portion 3 , a lower front storage chamber 31 is provided on the side of the board front portion 11 in the lower space portion 3 . A lower back side duct (exhaust side duct) 32 is provided on the board back side 12 side of the lower space 3 so as to communicate with the lower front storage chamber 31 .

A front-side communication port 18 penetrating in the vertical direction is provided on the side of the space part partition wall 16 on the side of the board front part 11 . The front communication port 18 allows communication between the upper front storage chamber 21 and the lower front storage chamber 31 .

A rear-side communication port 19 is provided on the side of the space part partition wall 16 on the side of the board rear part 12 so as to penetrate in the vertical direction. Through the rear communication port 19, the upper rear storage chamber 22 and the lower rear duct 32 are communicated with each other.

On the side of the upper space 2 in the board front part 11, an upper intake port 11a penetrating in the thickness direction of the board front part 11 is provided so that outside air can be taken into the upper front storage chamber 21. - 特許庁

In addition, on the side of the lower space portion 3 in the board front portion 11, a lower air intake port 11b is provided that penetrates the board front portion 11 in the thickness direction, and is configured so that outside air can be taken into the lower front storage chamber 31. there is

An exhaust port 14 a is provided through the panel ceiling portion 14 in the thickness direction thereof on the side of the upper rear storage chamber 22 in the panel ceiling portion 14 . Further, on the side of the exhaust port 14a in the panel ceiling portion 14, a ventilator 14b is provided so as to cover the exhaust port 14a, and blows the gas in the upper rear storage chamber 22 (outside air taken into the panel internal space 10). It is configured so that it can be exhausted to the outer peripheral side of the board 1A.

In the case of the lower front side storage chamber 31 in the board 1A in the figure, the electrical equipment stored in the lower front side storage room 31 and the front side portion 11 of the board extend in the vertical direction and the side-to-side direction. A flat plate mesh-like protective cover 33 is provided on the . The protective cover 33 is provided with a mesh-shaped ventilation hole 33a passing through the protective cover 33 in the thickness direction. It is configured to shield and protect the electrical equipment stored in the front storage chamber 31 .

<Example of storage configuration of board 1A>
The board 1A can accommodate various electrical devices and electrical components. For example, as indicated by the two-dot chain lines in FIGS. A series multiple inverter (hereinafter referred to as multiple inverter S as appropriate) can be accommodated.

In the case of the board 1A in the figure, a plurality of inverter units S1 (in the figure, 15 units arranged in 5 stages in the vertical direction and 3 rows in the lateral direction) are stored in the lower front storage chamber 31. there is Although the inverter unit S1 is not particularly limited, an example thereof includes a configuration including a heat-generating electronic component such as a power semiconductor (IGBT, etc.), a control circuit, and the like.

In the lower front storage chamber 31, a plurality of inverter units S1 are housed so as to be arranged (5 rows in the vertical direction and 3 rows in the horizontal direction) at predetermined intervals in the vertical direction and the lateral direction. there is

A low-voltage component S2 is accommodated in the upper front storage chamber 21 . This low-voltage component is not particularly limited, but as an example, a control unit, a relay circuit (for example, a relay circuit related to the fan 14b), an electrical low-voltage component such as a UPS (for example, compared to the high-voltage component S3) low voltage) parts.

A high-voltage component S3 is stored in the upper rear side storage chamber 22. - 特許庁The high-voltage component S3 is also not particularly limited, but as an example, an electrically high-voltage component (for example, a higher voltage than the low-voltage component S2) such as a reactor S31, a capacitor S32, a resistor S33, etc. An output filter or the like having

<Example of ventilation configuration of panel 1A>
In the board 1A, when the ventilator 14b is operated to exhaust the gas in the upper rear storage chamber 22, the pressure inside the board 10 becomes lower than the outer peripheral side of the board 1A. As a result, the outside air is taken into the upper front storage chamber 21 through the upper intake port 11a, and the outside air is taken into the lower front storage chamber 31 through the lower intake port 11b.

In this way, outside air taken in from the upper stage intake port 11a and the lower stage intake port 11b (hereinafter referred to simply as upper stage side intake outside air and lower stage side intake outside air, respectively, may be collectively referred to as intake outside air as appropriate). ) moves in the board internal space 10 as indicated by, for example, the straight arrows in the figure, and is exhausted to the outer peripheral side of the board 1 via the exhaust port 14a and the ventilator 14b. As a result, the space 10 inside the board is cooled, and the temperature rise is suppressed.

Specifically, the low-pressure components S2 stored in the upper front storage chamber 21 are cooled (absorbed heat) by the upper intake outside air.

The inverter unit S1 stored in the lower front storage chamber 31 is cooled by the lower intake outside air and the upper intake outside air moved from the upper front storage chamber 21 via the front communication port 18. It will be done.

The high-pressure parts S3 stored in the upper rear side storage chamber 22 are cooled by the intake outside air that moves from the lower front side storage chamber 31 through the lower rear side duct 32 and the rear side communication port 19 in order. It will happen.

As described above, by operating the ventilator 14b to ventilate the board 1A, the inverter unit S1, which is one of the parts with a relatively high cooling demand in the multiplex inverter S, is given priority over the high-voltage component S3. Allow to cool.

For example, in the case of a typical multiple inverter S, the high voltage component S3 may operate at a relatively higher temperature than the inverter unit S1. Therefore, even if the taken-in outside air after passing through the lower front-side storage chamber 31 (for example, the taken-in outside air that has absorbed the operating heat of the inverter unit S1), the high pressure stored in the upper-stage rear-side storage chamber 22 is reduced. It becomes possible to sufficiently cool the part S3.

<Others>
The shapes of the upper air intake port 11a, the lower air intake port 11b, the exhaust port 14a, the front side communication port 18, and the rear side communication port 19 (hereinafter collectively referred to simply as various ventilation ports as appropriate) can be appropriately set. possible and not particularly limited. One example is a mode in which one or more slit-shaped, circular, or rectangular holes are formed. In addition, by providing filters (not shown) in various vents, it is possible to prevent foreign substances from entering the space inside the board 10 (or prevent foreign substances from being discharged from the space inside the board 10). be done.

In addition, considering the storability and maintainability of the multiplex inverter S, a door structure (double door structure, single door structure, etc.) that can be opened and closed via a hinge etc. For example, the partition wall 17, the protective cover 33, and the like may be configured to be detachable.

In ventilator 14b, for example, one with rotating fan blades is applied.

According to the panel 1A as described above, the upper front side storage chamber 21 and the upper rear side storage chamber 22 of the inner space 10 of the panel can be used not only to store the low voltage component S2 and the high pressure component S3 but also to function as ducts. can be done. Moreover, compared with the conventional structure, it is easy to secure a desired storage space, and the number of parts related to the duct can be reduced.

As a result, desired storage efficiency and cooling efficiency can be easily obtained compared with the conventional configuration, and it is easy to contribute to the simplification and miniaturization of the panel structure.

<<Plate 1B according to Example 2>>
In the lower front storage chamber 31 of the board 1A, it is preferable to equalize the flow rate distribution of the taken outside air and cool each inverter unit S1 stored in the lower front storage chamber 31 in the same manner.

However, for example, if the dimension in the vertical direction becomes large (for example, if the number of storage stages of the inverter units S1 to be stored increases), the amount of outside air taken in on the upper stage side increases as the lower front storage room 31 approaches the board bottom 15 side. The flow rate decreases, and the cooling effect of the upper-stage-side intake outside air becomes smaller.

That is, each inverter unit S1 stored on the board bottom 15 side of the lower front storage chamber 31 cannot be cooled as desired (for example, each inverter unit S1 can be similarly cooled), and the operation of the multiplex inverter S is unstable. It may become

For example, by increasing the size and output of the ventilator 14b, it is conceivable to make the flow rate distribution of the outside air taken into the lower front storage chamber 31 uniform. may lead to

Therefore, in the second embodiment, by constructing the board 1B as shown in FIGS. 5 and 6, the flow rate distribution of the outside air taken into the lower front storage chamber 31 can be easily made uniform.

<Main configuration of board 1B>
The board 1B shown in FIGS. 5 and 6 is provided with a ventilation guide 4 between the inverter unit S1 in the lower front storage chamber 31 and the board front part 11 (intake duct).

The ventilation guide 4 is provided so as to hang down and extend toward the board bottom 15 from a position closer to the board front face 11 than the front communication port 18 in the space partition wall 16 .

Also, the ventilation guide 4 is in a slanted posture so as to approach the lower rear duct 32 as it approaches the tip 41 in the extending direction.

Further, the tip 41 of the ventilation guide 4 is positioned at a predetermined distance from the board bottom 15 (positioned between the inverter units S1 housed in the second and third stages from the board bottom 15 side in the figure). ing. A protective cover 33 is provided between the front end portion 41 and the bottom portion 15 (hereinafter simply referred to as a gap between the two) so as to allow passage of outside air taken in from the lower stage side.

A tip portion 41 in the drawing has a bent portion 42 that is bent from the tip portion 41 toward the lower rear duct 32 side.

According to the board 1B as described above, the following can be said in addition to the same effects as those of the board 1A. That is, the movement path of the upper-stage outside air taken in the lower-stage front-side storage chamber 31 is restricted so as to be narrowed toward the space partition wall 16 side of the lower-stage front-side storage chamber 31 (in the figure, the third stage from the board bottom 15 side). , the storage area of the inverter units S1 stored in the fourth and fifth stages. As a result, a desired flow rate can be easily obtained in the upper-stage-side intake outside air that moves along the space partition wall 16 side of the lower-stage front-side storage chamber 31 .

On the other hand, the movement path of the lower-stage outside air taken in the lower-stage front storage chamber 31 is restricted so as to be narrowed toward the board bottom 15 side of the lower-stage front-side storage chamber 31 (in the figure, the first and second stages from the board bottom 15 side). can be limited to the storage area of the inverter unit S1 stored in the storage area. As a result, a desired flow rate can be easily obtained in the lower-stage-side intake outside air moving on the board bottom 15 side of the lower-stage front-side storage chamber 31 .

Therefore, for example, by appropriately setting the extension direction dimension of the ventilation guide 4 (that is, corresponding to the dimension of the gap between the two), the tilted posture, etc., the flow rate distribution of the intake outside air in the lower front storage chamber 31 can be made uniform. becomes possible.

In addition, in the case of the ventilation guide 4 in the figure, since it is configured to have a bent portion 42 , the upper and lower intake outside air in the lower front storage chamber 31 is rectified in the direction of the lower rear duct 32 . easier to be

<<Plate 1C according to Example 3>>
When the operating heat of the plurality of high-pressure components S3 stored in the upper rear storage chambers 22 of the boards 1A and 1B is different, even if the ventilator 14b is properly operated, some of the high-pressure components S3 ( Insufficient cooling of high-pressure components S3), which generate relatively high operating heat, may occur.

For example, if the high-voltage component S3 in the drawing is an output filter, the reactor S31 is likely to generate relatively high operating heat, and cooling may be insufficient.

Therefore, in the present embodiment 3, by constructing the board 1C as shown in FIGS. In the figure, the reactor S31), which can generate relatively high operating heat, is compared with the rest (capacitor S32, resistor S33, which can generate relatively low operating heat in the figure), so that it is easier to intensively cool it. did.

<Main configuration of board 1C>
The board 1C shown in FIGS. 7 to 9 is provided with a flat storage room partition wall 5 extending in the horizontal direction of the board 1C at the center of the upper rear side storage room 22 . The storage chamber partition wall 5 divides the upper storage chamber 22 into an upper storage chamber 51 and a lower storage chamber 52 .

Further, the storage room partition wall 5 is provided with a storage room communication port 50 penetrating in the vertical direction on the side of the board side portion 13b of the storage room partition wall 5 .

In the case of the upper rear storage chamber 22 in the figure, a capacitor S32 is arranged on the board side surface portion 13a side of the upper storage chamber 51, and a resistor S33 is arranged on the board side surface portion 13a side of the lower storage chamber 52. . In addition, the reactor S31 is arranged in a posture in which the reactor S31 is inserted into the communication port 50 of the storage chamber on the board side portion 13b side of the upper rear storage chamber 22 .

According to the board 1C as described above, in addition to the same effects as the board 1A, the following can be said. That is, in the intake air that has moved from the lower front storage chamber 31 to the upper rear storage chamber 22 via the lower rear duct 32 and the rear communication port 19 in order, the movement path of the intake outside air is stored. The air is restricted to pass through the chamber communication port 50, and the flow velocity increases near the storage chamber communication port 50 (that is, the flow rate of the taken-in outside air increases).

Therefore, in the case of the board 1C in the figure, the reactor S31 arranged near the storage chamber communication port 50 is cooled more easily than the capacitor S32 and the resistor S33. That is, even when the operating heat of the plurality of high-voltage components S3 stored in the upper rear storage chamber 22 is different, it becomes easy to sufficiently cool the respective high-voltage components S3.

In the case of the board 1B, as in the case of the board 1C, it is possible to provide the storage room partition wall 5 in the upper rear side storage room 22, thereby providing the same effects as those of the board 1C.

Although the present invention has been described in detail only with respect to the specific examples described above, it is obvious to those skilled in the art that various modifications can be made within the scope of the technical idea of the present invention. It goes without saying that such changes and the like belong to the scope of claims.

For example, the board frames used for the boards 1A to 1C, the space part partition wall 16 provided in the board internal space, the upper stage partition wall 17, the protective cover 33, the ventilation guide 4, the storage room partition wall 5, etc. are variously used. Materials can be used, and examples thereof include those made by appropriately selecting a metal material, a resin material, or the like.

1A, 1B, 1C... Board 10... Board internal space 11, 12, 13a, 13b, 14, 15... Board frame (board front part, board back part, board side part, board side part, board ceiling part, board bottom part)
11a, 11b . . . intake ports (upper stage intake port, lower stage intake port)
DESCRIPTION OF SYMBOLS 14a... Exhaust port 14b... Ventilator 16... Spatial part partition wall 17... Upper stage partition wall 18, 19, 50... Communication port (front side communication port, back side communication port, storage chamber communication port)
21, 22, 31 ... storage chambers (upper front storage chamber, upper rear storage chamber, lower front storage chamber)
32... Lower back side duct 4... Ventilation guide 5... Storage room partition wall

Claims (4)

a box-shaped board formed by assembling a plurality of board frames;
a space partition wall that divides the internal space of the board into an upper space and a lower space;
an upper partition wall that partitions the upper space into an upper front storage chamber located on the board front side and an upper back storage room located on the board back side;
a lower-stage front-side storage room positioned on the board-front-side in the lower-stage space;
a lower rear duct located on the board rear side in the lower space and communicating with the lower front storage chamber;
with
The space partition wall is
a front communication port that communicates between the upper front storage chamber and the lower front storage chamber;
a back side communication port communicating between the upper back side storage chamber and the lower back side duct;
with
The board is
an upper intake port provided on the side of the upper space portion in the front face of the board and communicating with the upper front storage chamber;
a lower intake port provided on the side of the lower space portion in the panel front portion and communicating with the lower front storage chamber;
an exhaust port provided on the side of the upper rear storage chamber in the ceiling portion of the board and communicating with the upper rear storage chamber;
a ventilator provided on the side of the exhaust port in the ceiling of the board and capable of exhausting the gas in the upper rear side storage chamber to the outer peripheral side of the board;
An electrical equipment storage panel, comprising: further comprising a ventilation guide interposed between the electrical equipment and the panel front part in a state where the electrical equipment is stored in the lower front storage room,
The ventilation guide is
It extends from a position closer to the board front side than the front side communication port in the space part partition wall toward the board bottom side, and as it approaches the leading end in the extending direction, it approaches the lower stage back side duct side. provided at an angle,
2. The electrical equipment storage board according to claim 1, wherein the tip portion in the extending direction is positioned at a predetermined distance from the bottom of the board. further comprising a storage room partition wall that divides the upper rear side storage room into an upper storage room and a lower storage room,
3. The storage chamber partition wall according to claim 1, wherein the storage chamber partition wall is provided with a storage chamber communication port penetrating in the vertical direction on one side of a cross direction intersecting the vertical direction of the board. Electrical equipment storage board. The upper space accommodates a plurality of electrical components including low-voltage components and high-voltage components,
Among the electrical components, low-voltage components are arranged in the upper front storage chamber,
4. The electrical equipment storage panel according to claim 1, wherein high voltage components among said electrical components are arranged in said upper rear side storage chamber.

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