JP2013021046A - Outdoor apparatus exhaust louver corrosion prevention cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an exhaust louver corrosion prevention cover which utilizes wind force of an exhaust fan to blow off and evaporate collected water droplets and thereby preventing corrosion of a louver integrally provided with a side surface of a metal housing of an outdoor apparatus.SOLUTION: In an outdoor apparatus, a louver provided at an exhaust port for exhaust air of an exhaust fan is integrally provided with a side surface of a metal housing. The outdoor apparatus includes: a cover part for covering the louver having a curved line member in which a recessed part is formed at a position where wind force of the exhaust fan is strong, a frame member for supporting an end part of the curved line part, and an enclosure wall which is extended at an upper end part and both side end parts of the frame member so as to bend to the housing side; and an attachment part for attaching a tip of the enclosure wall of the cover part to an outer wall surface of the housing in such a close contact manner.

Description

The present invention relates to a cover attached to the outside of a casing of an outdoor device such as an electric motor, and more particularly to prevention of corrosion of an outdoor device exhaust louver capable of preventing corrosion of a louver provided integrally with a casing of a metal outdoor device. Regarding the cover.

  Conventionally, as shown in FIG. 6, an outdoor device 100 such as an electric motor or an outdoor unit installed outdoors is provided with an exhaust fan 101 for radiating heat generated inside, and a housing 102 is exhausted. A louver 103 is integrally provided so as not to hinder the exhaust of the fan 101 and to prevent rainwater or the like from entering the housing 102.

As such an outdoor device, for example, Japanese Patent Laid-Open No. 10-31638, “Cabinet-type communication device for outdoor installation” in Patent Document 1 has been proposed.
This "Outdoor Installation Cabinet Type Communication Device" is a cabinet-shaped main body provided with a louver for an outside air exhaust fan to efficiently exhaust the heat of the electronic equipment it contains. Is disclosed.

JP-A-10-311638

  However, the casing 102 of the outdoor device 100 in which the louver 103 is integrally provided is often made of metal from the viewpoint of durability and heat resistance. Since the louver 103 is installed facing the outside, water droplets due to rainwater or the like are likely to stay at the tip of the louver 103 and are likely to corrode. If the louver 103 is corroded, the exhaust and exhaust heat are hindered by rust, and it becomes impossible to prevent water droplets from entering the motor of the exhaust fan 101. In order to repair the corroded louver 103, since the louver 103 is provided integrally with the casing 102, it is necessary to remove the casing 102 from the equipment housed therein, which makes the repair large. There was a problem. In addition, there is a problem that an economic burden increases when the entire casing 102 is exchanged.

  The present invention has been proposed to solve the above-described problems. That is, the object of the present invention is not only to prevent rainwater or the like from splashing on the louver 103, but also by providing a curved member having a recess in the strong wind portion of the exhaust fan 101 to promote dripping and transpiration of water droplets. An object of the present invention is to provide an exhaust louver corrosion prevention cover that prevents the louver 103 from corroding.

  In the first exhaust louver corrosion prevention cover of the present invention for achieving the above object, the louver (103) provided at the exhaust port of the exhaust fan (101) is integrally provided on the side surface of the metal casing (102). In the outdoor device (100), the curved fan member (12, 13, 14) in which a concave portion is formed at a position where the wind force of the exhaust fan (101) is strong, and a frame member that supports the end of the curved member member (16) and a cover that covers the louver (103) having the frame member (16) and an enclosure wall (20) extending so as to bend toward the casing (102) at the upper end and both side ends of the frame member (16). And an attachment portion (70) for attaching the tip portion of the enclosure wall (20) of the cover portion (50) so as to be in close contact with the outer wall surface of the housing (102). It is characterized by that.

  The curvilinear member extends from a slat (12, 13) having a substantially U shape and / or a slat (14) having a substantially W shape in a vertical cross section perpendicular to the rotation axis of the exhaust fan (101). The slat may be inclined such that the housing (102) side is obliquely upward.

The cover part (50) may further include a water guide part (90) disposed so as to contact the front surface of the concave portion of the curved members (12, 14) and extend in a substantially vertical direction.
Moreover, you may attach to the said housing | casing (102) so that attachment or detachment is possible by the said attaching part (70).

  The exhaust louver corrosion prevention cover of the present invention includes a cover portion having a curved member formed with a recess so as to collect water droplets at a position where the wind force of the exhaust fan is strong, thereby preventing water droplets such as rainwater from being applied to the louver. At the same time, the dripping and transpiration of water droplets attached to the exhaust louver corrosion prevention cover can be promoted, the humidity around the louver can be lowered, and the louver can be prevented from corroding.

FIG. 3 is a schematic perspective view of the exhaust louver corrosion prevention cover according to the first embodiment viewed from obliquely above the front. It is the schematic at the time of attaching the exhaust louver corrosion prevention cover of Example 1 to a housing | casing, (a) is a right view, (b) is sectional drawing of the XX part of FIG. It is sectional drawing of the YY part of Fig.2 (a) of the exhaust louver corrosion prevention cover of Example 1. FIG. It is explanatory drawing which shows the correspondence of the position of the recessed part of the curved member of the ventilation hole part of the exhaust louver corrosion prevention cover of Example 1, and the wind force of an exhaust fan. It is the schematic of the exhaust louver corrosion prevention cover of Example 2, Comprising: (a) is the schematic perspective view visually recognized from front diagonally upward, (b) at the time of attaching an exhaust louver corrosion prevention cover to a housing | casing (a). It is sectional drawing of a ZZ part. It is the schematic which shows a part of structure of the conventional outdoor apparatus.

Embodiments of an exhaust louver corrosion prevention cover according to the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic perspective view of an exhaust louver corrosion prevention cover 1 according to the first embodiment as viewed from the front obliquely upward. 2A and 2B are schematic views when the exhaust louver corrosion prevention cover 1 according to the first embodiment is attached to the housing 102. FIG. 2A is a right side view, and FIG. 2B is a cross-sectional view taken along the line XX in FIG. is there. FIG. 3 is a cross-sectional view of the YY portion of FIG. 2A of the exhaust louver corrosion prevention cover 1 of the first embodiment.
As shown in FIGS. 1 and 2, the exhaust louver corrosion prevention cover 1 according to the first embodiment is arranged to be substantially perpendicular to the rotation axis of the exhaust fan 101 so as to face the louver 103 of the exhaust fan 101. A cover portion 50 that covers the louver 103, and includes a cover portion 50 that covers the louver 103, and includes a cover portion 50 that surrounds the upper end portion and both side end portions of the ventilation portion 10 so as to bend toward the housing 102. In order to be attached to 102, the cover portion 50 includes an attachment portion 70 that is fixed to the wall surface of the front end portion of the enclosure wall 20.

The ventilation portion 10 includes a plurality of curved members 12 (12a to 12c), 13, 14 (14a to 14e) and a frame member 16 that supports these curved members 12 to 14.
As shown in FIGS. 1 and 2, the curved members 12 to 14 are formed by bending a substantially rectangular plate having the same length in the short direction, and a cross section parallel to the longitudinal direction is substantially U. It consists of the slats 12 and 13 which are letter-shaped, and the slat 14 which is substantially W-shaped. As shown in FIG. 1, the substantially U-shaped slat 12a, the substantially W-shaped slats 14a to 14e, and the substantially U-shaped slat 13 are provided so that the centers thereof are arranged in the vertical direction in order from the top. The substantially U-shaped slats 12b and 12c are provided so as to be arranged side by side so as to fill the space between the substantially U-shaped slat 12a and the substantially W-shaped slat 14a.
Further, as shown in FIG. 2, each of the slats 12 to 14 is provided so as to be inclined such that the short side direction thereof is substantially parallel to the short side direction of the louver 103 and the casing 102 side is vertically upward. ing. And each wing board 12-14 is provided in the position of equal intervals from the outer wall surface of the housing | casing 102. FIG.

As shown in FIGS. 2B and 3, the frame-shaped member 16 has a substantially rectangular plate shape, and a substantially circular ventilation hole 16 x is provided at the center thereof. As shown in FIG. 2B, the vent hole 16 x has a parallelogram shape in a side view and has a shape obtained by obliquely crushing a cylinder, and its center line is substantially parallel to the short direction of the louver 103.
As shown in FIGS. 2 and 3, the substantially U-shaped slat 12a and the substantially W-shaped slats 14a to 14e are supported by the inner wall surface of the vent hole 16x on the side of the casing 102 at both ends in the longitudinal direction. Has been. In the substantially U-shaped slats 12b and 12c, of the both ends in the longitudinal direction, the end on the center side of the vent hole 16x is on the lower wall surface of the substantially U-shaped slat 12a and the outer end casing. The body 102 side portion is supported by the inner wall surface of the vent hole 16x in the same manner as the substantially U-shaped slat 12a. Further, the substantially U-shaped wing plate 13 is supported by the lower wall surface of the substantially W-shaped wing plate 14e at both ends in the longitudinal direction.
Moreover, the lower end side part of the short direction of the curved members 12-14 is formed so that it may protrude from the front surface of the frame-shaped member 16, as shown in FIG.

As shown in FIGS. 1 and 2, the enclosure wall 20 includes a substantially rectangular plate-like flange portion 22 and a substantially parallelogram-like side wall portion 24 facing each other.
As shown in FIG. 2, the flange portion 22 is provided so as to extend obliquely upward from the upper end edge of the frame-like member 16 of the main body portion 10 toward the housing 102. Further, the side wall portion 24 extends downward from both end portions of the flange portion 22 and rises from the side end portion of the main body portion 10.

  The inclination of the collar part 22 is substantially the same as the inclination of the louver 103 as shown in FIG. The length in the short direction of the collar portion 22 is longer than the length in the short direction of the louver 103 protruding from the housing 102, and the horizontal distance between the lower end portion of the collar portion 22 and the housing 102 is This is the same as the length of the side wall 24 in the short direction. This distance prevents the main body 10 from being too far from the exhaust fan 101 so that the main body 10 does not contact the tip of the louver 103 and the wind power of the exhaust fan 101 can be used (details will be described later). It is a big size.

  The material of the cover part 50 is not limited and may be made of metal or resin. Since the temperature of the exhausted gas differs depending on the equipment accommodated in the housing 102, for example, when hot air is emitted like an electric motor, it is made of metal, and when it is hot air like an outdoor unit, it is made of resin Also good.

  As shown in FIGS. 1 and 2, the attachment portion 70 is a substantially U-shaped resin magnet that is fixed to the entire front end wall surface of the enclosure wall 20 facing the surface of the housing 102. The surface of the resin magnet of the mounting portion 70 is formed smoothly, and a cover made up of the main body portion 10 and the surrounding wall 20 can be brought into close contact with the housing 102. With this attachment portion 70, the exhaust louver corrosion prevention cover 1 can be detachably attached so as to cover the louver 103 of the metallic housing 102.

FIG. 4 is a diagram illustrating the correspondence between the positions of the concave portions of the curved members 12 to 14 and the wind force of the exhaust fan 101 in the casing 102 side portion of the vent hole 16x of the exhaust louver corrosion prevention cover 1 of the first embodiment. FIG.
Although the wind force of the exhaust fan 101 depends on the shape of the rotating blades, generally the central portion where the rotation axis is located and the outer portion of the blade are weak (light gray portion in FIG. 4), and the outer portion from the center of the blade is It becomes stronger (the donut-shaped part colored dark gray in FIG. 4).
In the exhaust louver corrosion prevention cover 1, as shown in FIG. 4, the shape of the slats 12 to 14 is a substantially U-shaped or substantially W-shaped curved member, corresponding to a strong wind portion (dark gray portion). The recessed part of each slat 12-14 is formed in the position to do. In addition, since the direction and wind force of the exhaust fan 101 are slightly changed by the louver 103, considering the change, the exhaust fan 101 is adapted to the exhaust fan 101 to be used so that the concave portion comes in a stronger position of the wind force. It is preferable to form a curved member.

According to the exhaust louver corrosion prevention cover 1 of the first embodiment, it is possible to prevent the louver 103 provided in the metal casing 102 from being splashed with rainwater or dust.
Not only the slats 12 to 14 can be tilted forward, but they can be bent to collect water droplets in the recesses and dropped, so that the water droplets are less likely to stay. Further, by collecting the water droplets in the curved concave portion, even when the amount of collected water is small, it is difficult to be affected by the surface tension and the water droplets are less likely to stay. Therefore, it is possible to prevent the humidity around the louver 103 from increasing.

  Further, as described above, the concave portion is formed in the strong part of the wind force of the exhaust fan 101 and collected in the water droplets. Therefore, the water droplets are blown off using the wind, or the water droplets are evaporated by the hot air or the hot air by the exhaust fan 101. Is possible. Thus, by using the wind of the exhaust fan 101, the humidity around the louver 103 can be effectively reduced.

  Since the attachment portion 70 of the exhaust louver corrosion prevention cover 1 is a resin magnet, it can be easily attached to the housing 102 in a detachable manner, and the surface of the housing 102 is hardly damaged. The exhaust louver corrosion prevention cover 1 can be attached to protect the louver 103 during rainy weather, and can be removed during fine weather to improve the ventilation around the louver 103. Therefore, corrosion of the louver 103 can be further effectively prevented, and the state of the louver 103 can be easily inspected visually when it is removed. In addition, since it is removable, it can be wiped off even if water droplets or dust adheres to the back of the exhaust louver corrosion prevention cover 1. If the exhaust louver corrosion prevention cover 1 corrodes, it can be easily replaced with a new one. it can.

  Thus, according to the exhaust louver corrosion prevention cover 1 of the first embodiment, corrosion of the louver 103 can be prevented, and the repair cost of the housing 102 can be reduced. Since the exhaust louver corrosion prevention cover 1 has a simple structure and can be easily manufactured, it is economical. Desorption is easy and does not cost much.

The shape, material, configuration, size, and the like of the ventilation portion 10 and the enclosure wall 20 are not limited to those described above, and the curved members 12 to 14 of the ventilation portion 10 collect water droplets in the portion where the wind force of the exhaust fan 101 is strong. Any structure that does not hinder the exhaust of the exhaust fan 101 may be used.
For example, the curvilinear member may be composed of only a substantially W-shaped slat member or only a substantially U-shaped slat member. A structure in which the curvature of the concave portions of the curved members 12 to 14 as the slats is increased so as not to hinder the exhaust by the exhaust fan 101, and the water droplets are collected so that the flow velocity of the water droplets becomes faster and more easily dropped. It is good.
In addition, the curved members 12 to 14 of the main body 10 are slats, but as a substantially U-shaped and / or substantially W-shaped linear member, they are arranged in a mesh pattern at narrow intervals so that water droplets can enter. It is also possible to prevent dripping and transpiration of water droplets.

The shape of the vent hole 16 of the vent portion 10 is not limited to a circle like the exhaust louver corrosion prevention cover 1 of the first embodiment, and may be a rectangle, for example.
The side wall 24 of the exhaust louver corrosion prevention cover 1 has a flat plate shape, but a louver or the like may be provided, for example, in order to improve exhaust and ventilation. The shape of the cover 50 is not limited to a box shape like the exhaust louver corrosion prevention cover 1, and can be adapted to the shape of the exhaust fan 101 or the louver 103 of the outdoor device 100.

The shape, material, configuration, size, and the like of the attachment portion 70 are not limited to those described above, and it is sufficient that the exhaust louver corrosion prevention cover 1 can be retrofitted to the housing 102.
A resin magnet is used for the mounting portion 70 of the exhaust louver corrosion prevention cover 1, but when the equipment accommodated in the housing is affected by magnetic force, another mounting method is used. For example, a connecting portion may be provided on the main body of the casing 102 and attached by a sliding method, or may be fixed to the exhaust louver corrosion prevention cover 1 using the upper surface or the side surface of the main body of the casing 102. The exhaust louver corrosion prevention cover 1 is preferably provided in close contact with the outer wall surface of the housing 102.
When the cover portion 50 is made of resin, it is preferable that the cover portion 50 is transparent so that the state of the back surface of the exhaust louver corrosion prevention cover 1 and the louver 103 can be grasped visually while the cover portion 50 is attached.

FIGS. 5A and 5B are schematic views of the exhaust louver corrosion prevention cover 2 according to the second embodiment. FIG. 5A is a schematic perspective view of the exhaust louver corrosion prevention cover 2 viewed from obliquely above the front, and FIG. It is sectional drawing of the (a) ZZ part at the time of attachment.
As shown in FIG. 5, the exhaust louver corrosion prevention cover 2 of the second embodiment is further provided with a water guiding portion 90 on the exhaust louver corrosion prevention cover 1 of the first embodiment. Further, the exhaust louver corrosion prevention cover 2 is the same as the first embodiment except that the length of the protruding portion of the curved member 12a of the exhaust louver corrosion prevention cover 1 is different. The description is omitted.

  As shown in FIG. 5, the water guide section 90 includes a water flow material 92 and a water collection material 94. Further, the curved member 12a ′ of the exhaust louver corrosion prevention cover 2 of the second embodiment has a shorter protruding portion than the curved member 12a of the first embodiment.

  The flowing water member 92 is a column member having a thin linear upper end rounded, and the back upper part of the column member is fixed to the front surface of the recessed portion of the substantially U-shaped slat 12a ', and the bottom surface of the column member is the slat It is fixed on the upper surface of the convex portion of the substantially W-shaped slat 14a just below 12a '. Further, the upper end portion of the flowing water material 92 is provided so as to protrude slightly above the upper curved surface of the curved member 12.

  The water collecting material 94 is two columnar members that are thin and curved with rounded upper and lower ends. The two columnar members are respectively a front surface of the recessed portion of the substantially U-shaped wing plate 12b, a front surface of the left recessed portion of each of the curved members 14a to 14e, a front surface of the recessed portion of the substantially U-shaped wing plate 12c, and the curved members 14a. It is constructed in contact with the front surface of the right side recess of ~ e. The upper end portion of the water collecting material 94 is also provided so as to protrude slightly above the upper curved surface of the uppermost curved member 14, like the flowing water material 92. Moreover, the lower end part of the water collecting material 94 protrudes below from the lower curved surface of the lowermost curved member 14e, and is provided so as to extend to the front surface of the frame-shaped member 16 of the main body 10 in a front view.

The exhaust louver corrosion prevention cover 2 according to the second embodiment is provided with a water guide portion 90, gathers in the concave portions of the slats 12 to 14, and the water droplets flowing forward travel down the side surface of the water guide portion 90 and flow down due to their own weight. It has become. Therefore, corrosion of the louver 103 can be prevented more effectively than the exhaust louver corrosion prevention cover 1.
Specifically, the flowing water material 92 plays a role of transporting water droplets flowing in front of the concave portion of the slat 12a 'to the upper surface of the slat 14a provided below. Further, the water collecting material 94 collects water droplets flowing in front of the concave portions of the slats 12b, 12c, and 14a to e in order from the upper side, and drops them from the lower end of the water collecting material 94 onto the ground below. Take on.
The flowing water material 92 and the water collecting material 94 also serve as a reinforcing material for preventing the blades 12 and 14 from being deformed by hitting something.

The shape, material, configuration, size, and the like of the cover portion 50 and the attachment portion 70 are not limited to those described above, as in the first embodiment. Further, the shape, material, configuration, size, and the like of the water guiding portion 90 are not limited to those described above, and the water droplets collected in the concave portions of the curved members 12 and 14 of the ventilation portion 10 help to flow down by their own weight. I just need it.
For example, the horizontal cross section of the projecting portion at the upper end of the water guide section 90 may have a drop shape in plan view. Further, grooves may be provided in the longitudinal direction of both side surfaces of the water guide section 90 so that water droplets are easily transmitted. Further, for example, a bar-shaped support member is disposed on the back side of the portion of the water collecting material 94 that protrudes below the curved member 14 e and the front surface of the frame-like member 16, and is reinforced by the water collecting material 94. It is good also as a structure which heightens the effect.

  Note that the present invention is not limited to the above-described embodiment of the present invention, and if water droplets such as rainwater hanging on the exhaust louver corrosion prevention cover can be collected in the strong wind portion of the exhaust fan, and dripping and transpiration of water droplets can be promoted, Of course, the present invention is not limited to the configuration shown in the drawings, and various modifications can be made without departing from the scope of the present invention.

  The outdoor device exhaust louver corrosion prevention cover of the present invention is not limited to the cover of the louver, and the configuration of the ventilation portion can be used as the shape of the louver of the housing body of the outdoor device. In addition, the configuration of the curved member or the water guide portion that promotes the dripping of water droplets according to the present invention can be used not only for the exhaust portion but also for the intake portion.

1, 2 Outdoor equipment exhaust louver corrosion prevention cover 10 Ventilation parts 12, 13, 14 Curved member 16 Vent hole 20 Enclosure wall 22 Gutter part 24 Side wall part 50 Cover part 70 Mounting part 90 Water conveyance part 92 Water flow part 94 Water collection part 100 Outdoor equipment 101 Exhaust fan 102 Housing 103 Louver

Claims (4)

In the outdoor device (100) in which the louver (103) provided at the exhaust port of the exhaust fan (101) is integrally provided on the side surface of the metal casing (102),
A curved member (12, 13, 14) in which a concave portion is formed at a position where the wind force of the exhaust fan (101) is strong, a frame member (16) that supports an end of the curved member, and the frame member (16) And a cover portion (50) covering the louver (103) having a surrounding wall (20) extending so as to be bent toward the housing (102) at the upper end portion and both side end portions thereof.
An attachment portion (70) for attaching the front end portion of the enclosure wall (20) of the cover portion (50) so as to be in close contact with the outer wall surface of the housing (102). Exhaust louver corrosion prevention cover.   The curvilinear member extends from a slat (12, 13) having a substantially U shape and / or a slat (14) having a substantially W shape in a vertical cross section perpendicular to the rotation axis of the exhaust fan (101). The exhaust louver corrosion prevention cover according to claim 1, wherein the slats are inclined so that the casing (102) side is obliquely upward.   The said cover part (50) is further provided with the water guide part (90) arrange | positioned so that it may contact the front surface of the recessed part of the said curvilinear member (12,14) and may extend in a substantially perpendicular direction, Item 3. The exhaust louver prevention cover according to Item 1 or 2. The exhaust louver corrosion prevention cover according to any one of claims 1 to 3, wherein the exhaust louver corrosion prevention cover is detachably attached to the housing (102) by the attachment portion (70).