JP2017157614A - Ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilator capable of improving waterproofness against external jet water, when attached to a housing.SOLUTION: A ventilator 11 is installed outdoors and attached to the side S of a housing H for housing an electrical apparatus, and ventilates the housing H. The ventilator 11 includes a louver member 21 having a plurality of ventilation parts 25, and a frame 31 supporting the louver member 21 and projecting to the outside of the side S of the housing H. The louver member 21 includes an outside louver member 22, an inside louver member 23 and an intermediate louver member 24. The plurality of ventilation parts 25 in the outside louver member 22 have vanes 27 projecting farther outside than a body plate 26 constituting the outside louver member 22 and opening downward.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a ventilator used in a housing that houses electrical equipment.

  2. Description of the Related Art Conventionally, a housing that houses an electrical device has been provided with a ventilation device that ventilates the inside of the housing. As such a ventilator, a configuration having a two-layer structure of an outer louver member and an inner louver member is known (see Patent Document 1).

  Further, a ventilation structure using a side portion of a housing that houses an electric device as a louver portion is known (see Patent Document 2). In Patent Document 2, a side part of a housing for storing an electronic device is configured by a first side wall part and a second side wall part provided inside the first side wall part, and further inside the side part. The structure which provided the partition part is disclosed (refer FIG. 7 etc. of patent document 2). In this case, the first side wall, the second side wall, and the partition have a louver (blade) that covers the opening.

Japanese Utility Model Publication No. 05-23704 JP 2012-146860 A

  There is still room for improvement in the ventilator attached to the housing that houses the electrical equipment from the viewpoint of suppressing the entry of jet water from the outside. For example, as in the configuration disclosed in Patent Document 1, in the two-layer structure of the outer louver member and the inner louver member, there is a possibility that waterproofness against jet water from the outside cannot be sufficiently obtained. In addition, when the side wall part of a housing | casing is utilized as a louver part like the structure disclosed by patent document 2, there exists a possibility that the jet water from the outside may penetrate | invade comparatively much inside a housing | casing, and such water is used. It becomes difficult to discharge the battery outside the housing.

  This invention is made | formed in view of such a situation, The objective is to provide the ventilation apparatus which made it possible to improve the waterproofness with respect to the jet water from the outside by being attached to a housing | casing.

  A ventilator that solves the above problems is a ventilator that is installed outdoors and is attached to a side portion of a housing that houses electrical equipment, and ventilates the inside of the housing, and has a plurality of ventilation portions. And a frame that supports the louver member and protrudes to the outside of the side portion of the housing, and the ventilation portion includes a through hole in a body plate constituting the louver member, and the through hole The louver member comprises an outer louver member, an inner louver member, and an intermediate louver member disposed between the outer louver member and the inner louver member, and the outer louver member. The plurality of ventilation portions in the louver member have a wing plate that protrudes outward from the main body plate constituting the outer louver member and opens downward.

  According to this configuration, the jet water that has passed through the outer louver member is likely to become water droplets because its momentum is weakened by the intermediate louver member. Furthermore, the water droplets that have passed through the intermediate louver member are likely to fall because the momentum is weakened by the inner louver member. Moreover, invasion of jet water from above is suitably suppressed by the outer louver member.

  Note that Patent Document 1 does not disclose or suggest a configuration in which an intermediate louver member is disposed between an outer louver member and an inner louver member. From such Patent Document 1, the motivation to arrange the intermediate louver member cannot be obtained. Moreover, the said patent document 2 forms a louver structure in the side wall part itself of a housing | casing, and does not disclose or suggest the ventilation apparatus attached to a housing | casing.

  In the ventilator, it is preferable that the plurality of ventilation portions in the intermediate louver member have a wing plate that protrudes outward from the main body plate constituting the intermediate louver member and opens upward.

  When the outer louver member of the ventilator has a slat that protrudes outward and opens downward from the main body plate constituting the outer louver member, jet water flowing from below to above enters through the outer louver member. It becomes easy to do. According to the above configuration, since the intermediate louver member of the ventilator has the slats protruding outward and opening upward, the jet water that has entered through the outer louver member collides with the outer surface of the slats of the intermediate louver member. It becomes easy. As a result, the jet water that has entered between the outer louver member and the intermediate louver member has its momentum weakened and is likely to drop as water droplets. Further, since the louver board of the intermediate louver member is configured as described above, water drops that have lost their momentum are easily guided between the inner louver member and the intermediate louver member. That is, since the momentum of the water droplets that enter between the inner louver member and the intermediate louver member is lost, such water droplets are difficult to pass through the inner louver member.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to improve the waterproofness with respect to the jet water from the outside by attaching to a housing | casing.

It is a disassembled perspective view which shows a part of ventilation apparatus and housing | casing of this embodiment. It is sectional drawing which shows the ventilation apparatus attached to the housing | casing. It is sectional drawing which shows the example of a change of the ventilation apparatus attached to the housing | casing. It is sectional drawing which shows the example of a change of the ventilation apparatus attached to the housing | casing.

Hereinafter, an embodiment of a ventilation device will be described with reference to the drawings. In the drawings, the thickness of the member may be exaggerated.
As shown in FIG.1 and FIG.2, the ventilation apparatus 11 is attached to the side part S (for example, the side wall part under the eaves of the housing | casing H) etc. which are installed outdoors and accommodates an electric equipment, It is a device for ventilating the inside of the housing H. As an example of the housing | casing H, the switchgear which accommodated the power receiving apparatus etc. is mentioned, for example.

The ventilation device 11 includes a louver member 21 and a frame 31 that supports the louver member 21 and protrudes to the outside of the side portion S of the housing H.
The louver member 21 includes an outer louver member 22, an inner louver member 23, and an intermediate louver member 24 disposed between the outer louver member 22 and the inner louver member 23. Such a louver member 21 has a plurality of ventilation portions 25.

First, a configuration common to each louver member 21 will be described.
As shown in FIG. 2, each ventilation portion 25 of the louver member 21 includes a through hole 26 a included in a main body plate 26 constituting the louver member 21, and a wing plate 27 covering the through hole 26 a. The through hole 26a of each ventilation part 25 has a shape extending in the horizontal direction. The wing plate 27 of each ventilation portion 25 protrudes from the main body plate 26 so as to open upward or downward, and has a curved shape along the shape of the through hole 26a. The plurality of ventilation portions 25 in each louver member 21 are arranged in a plurality of rows adjacent to each other in the horizontal direction. The louver member 21 includes a frame-shaped attachment portion 28 that is integrally provided around the main body plate 26.

  The shape of the louver member 21 of the present embodiment is a quadrangular shape, and is integrally formed from a metal material. The louver member 21 can be formed by punching and bending a metal plate, for example.

Next, the configuration of each louver member 21 will be described.
The wing plate 27 of each ventilation portion 25 in the outer louver member 22 protrudes outward from the main body plate 26 constituting the outer louver member 22 and opens downward. The wing plate 27 of each ventilation part 25 in the inner louver member 23 protrudes inward from the main body plate 26 constituting the inner louver member 23 and opens upward. The wing plate 27 of each ventilation portion 25 in the intermediate louver member 24 protrudes outward from the main body plate 26 constituting the intermediate louver member 24 and opens upward.

  The ventilation portions 25 of the outer louver member 22, the ventilation portions 25 of the inner louver member 23, and the ventilation portions 25 of the intermediate louver member 24 are arranged so as to face each other in the horizontal direction.

  The main body plate 26 of the outer louver member 22 and the wing plate 27 of the intermediate louver member 24 are separated from each other, and the main body plate 26 of the inner louver member 23 and the main body plate 26 of the intermediate louver member 24 are separated from each other. Such a ventilator 11 includes an outer collection chamber R1 positioned between the outer louver member 22 and the intermediate louver member 24, and an inner collection chamber R2 positioned between the inner louver member 23 and the intermediate louver member 24. Yes.

  The lower end portion of the intermediate louver member 24 (attachment portion 28) has a drainage portion 24a for draining water between the inner louver member 23 and the intermediate louver member 24 (inner collection chamber R2). Although the drainage part 24a of this embodiment is formed so that the lower end of the intermediate | middle louver member 24 may be notched, you may comprise by a single or several hole.

Each mounting portion 28 of the outer louver member 22 and the intermediate louver member 24 has a protruding portion 28a that protrudes inward.
Next, the attachment structure of the frame 31 and the louver member 21 will be described.

  As shown in FIGS. 1 and 2, the frame body 31 includes an outer frame body 32 and an inner frame body 33. The outer frame 32 includes an attached portion 32a to which the outer louver member 22 is attached, and a peripheral wall 32b provided so as to surround the periphery of the attached portion 32a. The inner frame 33 includes an attached portion 33a to which the inner louver member 23 and the intermediate louver member 24 are attached, and a peripheral wall 33b provided so as to surround the periphery of the attached portion 33a.

  An attachment portion 28 of the outer louver member 22 is fastened and fixed to the attached portion 32a of the outer frame 32 by a fastening member 41 (bolts and nuts). The attachment portion 28 of the inner louver member 23 and the intermediate louver member 24 is fastened and fixed to the attached portion 33a of the inner frame 33 by fastening members 41 (bolts and nuts).

  The frame 31 is disposed so that the inner peripheral surface of the peripheral wall 32b of the outer frame 32 overlaps the outer peripheral surface of the peripheral wall 33b of the inner frame 33, and the peripheral walls 32b and 33b are fastened by fastening members 41 (bolts and nuts). It is formed by fastening and fixing.

  The support of the intermediate louver member 24 in the ventilation device 11 will be described in detail. In the intermediate louver member 24, the protruding portion 28a of the attachment portion 28 is in contact with the attached portion 33a of the frame body 31 (inner frame body 33). Thereby, the position of the main body plate 26 of the intermediate louver member 24 between the outer louver member 22 and the inner louver member 23 is positioned. In other words, the intermediate louver member 24 has a positioning portion (projecting portion 28 a) that positions the position of the main body plate 26 of the intermediate louver member 24 between the outer louver member 22 and the inner louver member 23.

  The frame 31 of the ventilation device 11 has a drain port 31 a that communicates between the outer louver member 22 and the intermediate louver member 24 and communicates between the inner louver member 23 and the intermediate louver member 24. That is, the drain port 31a communicates with both the outer collection chamber R1 and the inner collection chamber R2 described above. Specifically, the drain port 31 a is formed at the lower end portion of the peripheral walls 32 b and 33 b of the frame body 31. The drain port 31a communicates directly with the outer collection chamber R1, and communicates with the inner collection chamber R2 via the drainage portion 24a of the intermediate louver member 24. In addition, the number of the drain outlets 31a is not specifically limited, Single may be sufficient and plural may be sufficient. Moreover, it does not specifically limit about the shape of the drain outlet 31a, For example, slit shape may be sufficient and circular shape may be sufficient.

  The ventilation device 11 is attached to the side portion S of the housing H using a fastening member 41 that fixes the inner louver member 23 and the intermediate louver member 24 to the inner frame 33. The ventilation device 11 attached in this way is configured as an exhaust port for exhausting the air in the housing H. The ventilator 11 is attached at a predetermined height away from the installation surface of the housing H so as not to hinder the discharge of water from the drain port 31a. Note that the side portion S of the housing H is provided with an intake port for taking air into the housing H as necessary. In addition, a blower mechanism that forcibly sends air from the intake port to the exhaust port may be provided in the housing H.

Next, main actions of the ventilator 11 will be described.
A part of the jet water directed to the ventilation device 11 attached to the side portion S of the housing H passes through the ventilation portion 25 of the outer louver member 22 of the ventilation device 11 as shown by the solid line arrow in FIG. . Here, the ventilation device 11 of the present embodiment includes an outer louver member 22, an inner louver member 23, and an intermediate louver member 24 disposed between the outer louver member 22 and the inner louver member 23. According to this configuration, the jet water that has passed through the outer louver member 22 tends to be water droplets because its momentum is weakened by the intermediate louver member 24. Further, the water droplets that have passed through the intermediate louver member 24 are likely to descend because their momentum is weakened by the inner louver member 23.

  Further, the plurality of ventilation portions 25 in the outer louver member 22 have wing plates 27 that protrude outward from the main body plate 26 constituting the outer louver member 22 and open downward. According to this configuration, intrusion of jet water from above is suitably suppressed by the outer louver member 22.

  Further, in the ventilation device 11 of the present embodiment, the plurality of ventilation portions 25 in the inner louver member 23 have wing plates 27 that protrude inward from the main body plate 26 that constitutes the inner louver member 23 and open upward. ing. According to this configuration, water droplets adhering to the slats 27 of the inner louver member 23 flow down between the inner louver member 24 and the inner louver member 23 (inner collection chamber R2) as shown by broken line arrows in FIG. To do.

  Note that water collected between the outer louver member 22 and the intermediate louver member 24 (outer collection chamber R1) and between the inner louver member 23 and the intermediate louver member 24 (inner collection chamber R2). The collected water is discharged out of the housing H through the drain port 31a of the frame 31 as shown by the broken line arrows in FIG.

Next, characteristic effects of the present embodiment will be described.
(1) The ventilation device 11 is a device for ventilating the inside of the housing H by being installed outdoors and attached to the side S of the housing H that houses electrical equipment. The ventilation device 11 includes a louver member 21 having a plurality of ventilation portions 25 and a frame body 31 that supports the louver member 21 and protrudes to the outside of the side portion S of the housing H. The ventilation part 25 is comprised from the through-hole 26a which the main body board 26 which comprises the louver member 21 has, and the wing board 27 which covers the through-hole 26a. The louver member 21 includes an outer louver member 22, an inner louver member 23, and an intermediate louver member 24 disposed between the outer louver member 22 and the inner louver member 23. The plurality of ventilation portions 25 in the outer louver member 22 have wing plates 27 that protrude outward from the main body plate 26 constituting the outer louver member 22 and open downward.

  According to this configuration, the above-described operation can be obtained. Therefore, it is possible to provide the ventilator 11 that can be attached to the housing H to improve the waterproof property against jet water from the outside. For example, it becomes possible to meet the requirements for the waterproof performance of the anti-jet type (IPX5) defined in JIS C0920.

(2) The intermediate louver member 24 of the ventilator 11 has a wing plate 27 that protrudes outward from the main body plate 26 constituting the intermediate louver member 24 and opens upward.
When the outer louver member 22 of the ventilator 11 has a wing plate 27 that protrudes outward from the main body plate 26 constituting the outer louver member 22 and opens downward, as shown by a solid arrow in FIG. The jet water flowing from the lower side to the upper side can easily enter through the outer louver member 22. According to the above configuration, since the intermediate louver member 24 has the wing plate 27 that protrudes outward and opens upward, the jet water that has entered through the outer louver member 22 is placed on the outer surface of the wing plate 27 of the intermediate louver member 24. It becomes easy to collide. Thereby, the jet water that has entered the space between the outer louver member 22 and the intermediate louver member 24 (outer collection chamber R1) is weakened and easily drops as water droplets. Further, since the wing plate 27 of the intermediate louver member 24 is configured as described above, as shown by a broken line arrow in FIG. 2, the water droplets that lost momentum are located between the inner louver member 23 and the intermediate louver member 24. It becomes easy to be guided to. That is, since the momentum of the water droplets entering between the inner louver member 23 and the intermediate louver member 24 is lost, such water droplets are difficult to pass through the inner louver member 23. Therefore, it becomes possible to further improve the waterproofness against the jet water from the outside.

  (3) The plurality of ventilation portions 25 in the inner louver member 23 have wing plates 27 that protrude inward from the main body plate 26 constituting the inner louver member 23 and open upward. Thereby, since the effect | action mentioned above is acquired, it becomes possible to further improve the waterproofness with respect to the jet water from the outside.

  (4) As disclosed in Patent Document 2, in the configuration in which the slats of the inner louver part and the slats of the intermediate louver part protrude in a direction in which they approach each other, the side wall portion increases the distance between the slats. It is possible to improve waterproofness by widening the distance between the two. However, in this case, the thickness dimension of the ventilation portion becomes larger, and for example, the influence on the design other than the ventilation portion tends to increase. In this respect, in the ventilator 11 of the present embodiment, the direction in which the slats 27 of the inner louver member 23 protrude and the direction in which the slats 27 of the intermediate louver member 24 protrude are directions away from each other. It becomes possible to secure the space | interval of mutual slats 27, keeping down the thickness dimension of this. Thereby, it becomes possible to provide the ventilation apparatus 11 which exhibits more compact and suitable waterproofness.

(5) The intermediate louver member 24 is fixed to the frame body 31 with a fastening member 41 common to the inner louver member 23. In this case, the structure of the ventilation device 11 can be simplified.
(6) The intermediate louver member 24 has a positioning portion (protrusion 28 a) that positions the main body plate 26 of the intermediate louver member 24 between the outer louver member 22 and the inner louver member 23. In this case, by positioning the intermediate louver member 24, the position of the main body plate 26 of the intermediate louver member 24 can be stabilized so that the outer collection chamber R1 and the inner collection chamber R2 have a predetermined size. Therefore, the predetermined waterproof performance is easily exhibited. In addition, although the protrusion part 28a of the intermediate | middle louver member 24 in this embodiment is a structure protruded inside the main body board 26, you may change into the structure protruded outside the main body board 26. FIG. Even in this case, the same effect can be obtained.

In addition, you may change the said embodiment as follows.
The intermediate louver member 24 is fixed to the frame 31 with a fastening member 41 common to the inner louver member 23, but as shown in FIG. 3, the frame 31 is secured to the fastening member 41 common to the outer louver member 22. It can also be fixed to.

The intermediate louver member 24 may be fixed to the frame body 31 with a fastening member 41 that is different from any of the inner louver member 23 and the outer louver member 22.
The ventilation device 11 is attached to the side portion S of the housing H by a fastening member 41 that fastens the outer louver member 22 to the frame body 31. It can also be attached.

The attachment of the louver member 21 to the frame body 31 and the attachment of the ventilation device 11 to the side portion S of the housing H may use, for example, welding without using the fastening member 41.
As shown in FIG. 3, the intermediate louver member 24 can be changed to an intermediate louver member 29 having a plurality of ventilation portions 25 projecting inward from the main body plate 26 and having a wing plate 27 opening downward. . Note that the lower end portion of the intermediate louver member 29 also has a drainage portion 29 a as in the case of the intermediate louver member 24. However, when changed in this way, the jet water that has entered through the outer louver member 22 easily collides with the inner surface of the intermediate louver member 29, not the outer surface, as indicated by the solid line arrow in FIG. Thereby, there is a possibility that a relatively strong water droplet may enter the inner collection chamber R2, or the amount of water entering the inner collection chamber R2 may temporarily increase. In other words, the ventilator 11 according to the above embodiment is preferable to the ventilator 11 shown in FIG.

  In the intermediate louver member 24, the blades 27 of the plurality of ventilation portions 25 may be changed to blades that open downward, or in the intermediate louver member 29 shown in FIG. 27 may be changed to a slat opening upward.

  In the inner louver member 23, the blades 27 of the plurality of ventilation portions 25 may be changed so as to protrude outward from the main body plate 26 of the inner louver member 23, or may be changed so as to open downward. Also good. In the ventilation device 11 of the above-described embodiment, in the modified example in which the wing plate 27 in the inner louver member 23 is changed to a configuration projecting outward from the main body plate 26 of the inner louver member 23, the following operational effects are obtained. First, since the slats 27 of the outer louver member 22 and the slats 27 of the intermediate louver member 24 protrude outward as well, as described in the above section (4), while keeping the thickness dimension of the ventilator small, It becomes possible to ensure the space | interval of mutual slats. As a result, it is possible to provide a ventilating apparatus that exhibits more compact and suitable waterproofness. Further, by changing the wing plate 27 of the inner louver member 23 so as to protrude outward from the main body plate 26 of the inner louver member 23 and to open downward, water droplets on the inner side of the wing plate 27 of the inner louver member 23. Since it becomes difficult to penetrate, waterproofness can be further improved.

  -Although the external shape of the said louver member 21 is square shape, you may change into other shapes, such as circular shape, for example. In this case, the frame body 31 can also be changed according to the shape of the louver member 21.

  -As shown in FIG. 4, you may arrange | position the foreign material penetration | invasion suppression member 51 of at least one of a filter and an insect net between the inner louver member 23 and the intermediate | middle louver member 24. FIG. In this case, the drain 31a of the frame 31 is configured to communicate between the foreign matter intrusion suppressing member 51 and the intermediate louver member 24 and not to communicate between the foreign matter intrusion suppressing member 51 and the outer louver member 22. . According to this configuration, even if outside air flows in from the drain port 31a, the outside air passes through the foreign matter intrusion suppressing member 51, so that foreign matters that enter the housing H can be reduced appropriately. For example, even if a filter having a relatively high air permeability is adopted as the foreign matter intrusion suppressing member 51, the intermediate louver member 24 can enhance the waterproofness against jet water from the outside.

  The intermediate louver member 24 has a protruding portion 28a as a positioning portion. However, the intermediate louver member 24 can be positioned by using a positioning member such as a spacer separate from the intermediate louver member 24.

  -Although the said ventilator 11 is used as an exhaust port which exhausts the air in the housing | casing H, in the housing | casing H, it provides in side parts S, such as a lower part of a door and side walls other than a door, for example. Thus, it may be used as an intake port for taking air into the housing H. In addition, when applying the ventilator 11 to the intake port which takes in air in the housing | casing H, in order to suppress the penetration | invasion of the foreign material into the housing | casing H from the outside, the foreign material penetration | invasion suppression member 51 mentioned above may be provided. preferable.

  DESCRIPTION OF SYMBOLS 11 ... Ventilator, 21 ... Louver member, 22 ... Outer louver member, 23 ... Inner louver member, 24, 29 ... Intermediate louver member, 25 ... Ventilation part, 26 ... Body plate, 26a ... Through-hole, 27 ... Blade 31 ... Frame body, 51 ... Foreign matter intrusion suppressing member, H ... Housing, S ... Side part.

Claims (2)

A ventilator for ventilating the inside of the housing, which is installed outdoors and is attached to a side portion of the housing that houses electrical equipment,
A louver member having a plurality of ventilation portions, and a frame body that supports the louver member and protrudes to the outside of the side portion of the housing,
The ventilation portion is constituted by a through hole of a main body plate constituting the louver member, and a slat covering the through hole,
The louver member is
An outer louver member, an inner louver member, and an intermediate louver member disposed between the outer louver member and the inner louver member,
The ventilator characterized in that the plurality of ventilation portions in the outer louver member have wing plates that protrude outward and open downward from the main body plate constituting the outer louver member. The ventilator according to claim 1,
The ventilator characterized in that the plurality of ventilation portions in the intermediate louver member have wing plates that protrude outward and open upward from the main body plate constituting the intermediate louver member.

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