JP2011149185A - Sound-absorbing panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sound-absorbing panel which suppresses a rise in the temperature of a provided solar battery panel. <P>SOLUTION: A sound-absorbing material 7 is internally mounted in a hollow portion between a front plate 2 with many open holes 21 and the solar battery panel 3 provided on a backside; a void portion 11 is provided between the sound absorbing material 7 and the solar battery panel 3; and a ventilation portion 12, capable of circulating air, is provided between the void portion 11 and the open hole 21. Outside air flows into the void portion 11 through the open hole 21 and the ventilation portion 12 and makes the solar battery panel 3 cool from the inside the sound-absorbing panel. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is mainly used as a soundproof wall installed along a highway or along a railway line, etc., in order to insulate and absorb noise caused by traveling of a vehicle, etc. The present invention relates to a soundproof panel that is attached as a wall to the underside, lower surface, wall surface, ceiling surface, or the like of a structure.

  2. Description of the Related Art As a sound absorbing panel used for insulating and absorbing noise associated with traveling of a vehicle or the like, there is one in which a sound absorbing material is housed in a hollow formed by a front plate and a back plate having a large number of holes.

  In recent years, in order to deal with environmental problems, efforts are being made to equip such road facilities with a solar power generation function. For example, in Patent Document 1, a rectangular frame-shaped frame, a metal plate attached to one surface of the frame and formed with a large number of slits or holes, a sound absorbing material disposed on the back surface of the metal plate, A solar cell panel-integrated sound insulation panel comprising: a rectangular and thin solar cell panel attached to the other surface of the frame with a light receiving surface facing outward.

JP-A-8-199512

  However, the solar cell panel integrated sound insulation panel as disclosed in Patent Document 1 has a problem that the temperature rises due to the reception of sunlight, and the power generation efficiency of the solar cell panel provided by this heat is reduced.

  Therefore, the present invention provides a sound absorbing panel in which the temperature rise of the solar cell panel is suppressed.

In order to achieve the above object, the present invention is configured as follows.
That is, the sound-absorbing panel according to the present invention has a sound-absorbing material housed in a hollow formed by facing a front plate having a large number of apertures and a solar cell panel provided on the back side,
A gap is provided between the sound absorbing material and the solar cell panel,
A ventilation portion through which air can flow is provided between the gap and the opening.

  According to the sound absorbing panel according to the present invention, a gap is provided between the sound absorbing material and the solar cell panel, and a ventilation part through which air can flow is provided between the gap and the opening. External air flows into the air gap through the openings and vents of the sound absorbing panel, and the solar panel heated by light reception is cooled from the inside of the sound absorbing panel to lower its temperature. Reduce the decline.

Further, the sound absorbing panel is formed in a substantially rectangular parallelepiped shape, the opening is formed in a slit shape long in the longitudinal direction of the sound absorbing panel, and a plurality of the openings are arranged in parallel in the vertical direction of the sound absorbing panel. Forming a row, and providing a plurality of rows of the aperture rows in the longitudinal direction of the sound absorbing panel;
If the end of the sound absorbing material is provided closer to the center than the row of apertures provided at the end of the sound absorbing panel and a ventilation portion is formed outward from the end of the sound absorbing material, a hole or a cut is formed in the sound absorbing material to be installed. This is preferable because the ventilation portion can be easily formed without processing such as forming a notch.

  In addition, if the ventilation part is provided outside both ends of the sound absorbing material, an air flow is formed with one ventilation part as an air inlet and the other as an outlet, thereby cooling the entire solar cell panel more efficiently. This is preferable.

  According to the sound absorbing panel of the present invention, the temperature increase of the provided solar cell panel is suppressed.

(A) which shows one Embodiment of the sound-absorbing panel which concerns on this invention is a top view, (b) is a front view, (c) is a side view, (d) is a rear view. It is a figure which shows the outline | summary of the AA cross section of FIG. It is a figure which shows the outline | summary of the BB cross section of FIG. It is CC sectional drawing of FIG. It is a figure which shows the outline | summary of the DD cross section of FIG. (B) is a front view, (b) is a side view, and (d) is a rear view showing another embodiment of the sound absorbing panel according to the present invention. . It is AA sectional drawing of FIG. It is a figure which shows the outline | summary of the BB cross section of FIG. It is sectional drawing which shows another form of implementation of the sound-absorbing panel which concerns on this invention. It is a figure which shows the outline | summary of the cross section of the sound absorption panel of FIG.

Embodiments of the present invention will be specifically described with reference to FIGS.
In the drawings, reference numeral 1 denotes a sound absorbing panel, which is formed in a substantially rectangular parallelepiped shape in which a front plate 2, a solar cell panel 3, a rear lateral cover 35, an upper frame member 4, a lower frame member 5, and a side plate 6 are fixed. Yes. The sound absorbing panel 1 includes a front plate 2 having a large number of apertures 21 made of an aluminum plate and a solar cell panel 3 behind it, and a sound absorbing material 7 such as glass wool is housed in the hollow. The noise that has entered the hollow through the opening 21 is absorbed by the sound absorbing material 7.

  The front plate 2 is provided with a slight inclination toward the inside of the sound absorbing panel 1 from the upper and lower ends of the sound absorbing panel 1 to the center, and is formed by being bent at the center of the front plate 2 in the vertical direction. It is provided by being formed by two upper and lower front plates 2.

  The front plate 2 is formed with a row of apertures 22 formed by arranging 23 elongated slit-shaped apertures 21 extending in the longitudinal direction of the sound absorbing panel 1 in the vertical direction. The aperture rows 22 of the present embodiment are formed by arranging two rows in the vertical direction across the bent portion at the center of the front plate 2, and forming 16 rows in parallel in the longitudinal direction of the front plate 2. I am letting.

  The opening 21 may be formed in the shape of an elongated slit, may be formed by punching holes, or may be formed in other shapes. As shown in FIG. 2 to be described later, an elongated notch is formed, and the upper part thereof is bent so as to project outward in the shape of a slit and formed into a slit shape. By forming in this way, the opening 21 can be easily formed, and the upper part of the opening 21 protruding outward functions as a roof, and rainwater or the like hardly enters the sound absorbing panel 1 through the opening 21. It is supposed to be.

As shown in FIG. 1 (c), a solar cell panel 3 is provided on the back surface of the sound absorbing panel 1. The solar battery panel 3 of the present embodiment is formed by surrounding four sides of a plate-like solar battery panel in which a plurality of solar battery cells are arranged side by side with a back frame 31 made of an extruded aluminum material. Reference numeral 3 denotes two sound absorber panels 1 that are arranged side by side near the center in the longitudinal direction.
Further, a back lateral cover 35 is attached to the lateral side of the two solar cell panels 3 arranged side by side, and a back lower cover 36 is attached to the lower side to close the gap on the back side of the sound absorbing panel 1. The back side cover 35 and the back lower cover 36 are formed by bending a galvanized steel sheet.

FIG. 2 is a diagram showing an outline of the AA cross section of the part provided with the solar cell panel 3 of FIG. 1, and FIG. 3 is an outline of the BB cross section of the part not provided with the solar cell panel 3 of FIG. FIG. FIG. 2 is simply drawn for easy understanding of the shape and arrangement of each member.
The upper frame material 4, the lower frame material 5, and the side plate 6 constituting the upper surface, the lower surface, and the left and right side surfaces of the sound absorbing panel 1 are formed by bending a galvanized steel plate, and are welded or riveted. They are fixed to each other.
The front plate 2 and the solar cell panel 3 are fixed to the front side and the back side, respectively, and the sound absorbing panel 1 is formed in a hollow, substantially rectangular parallelepiped shape.
In the present embodiment, as shown in FIG. 4 to be described later, the reinforcing material 16 formed by bending a galvanized steel sheet in the hollow near the center in the longitudinal direction of the sound absorbing panel 1 is used as the upper frame material 4 and the lower frame material. The sound absorbing panel 1 is improved in strength by being bridged between the two.

A sound-absorbing material 7 is housed in the hollow of the sound-absorbing panel 1, and the thickness of the sound-absorbing material 7 of this embodiment is formed to be less than half the thickness of the sound-absorbing panel 1 as shown in FIG.
The sound absorbing material 7 is supported by a belt-like support fitting 15 provided between the upper frame material 4 and the lower frame material 5 and attached to the front plate 2 side in the hollow of the sound absorbing panel 1. . By being attached in this way, a gap 11 is formed between the sound absorbing material 7 and the solar cell panel 3.
Although the sound absorbing material 7 of the present embodiment is formed by covering the surface of glass wool formed in a plate shape with a glass fiber sheet, the present invention is not limited to this, and the glass wool is made of another member such as a resin film. It may be coated with a material other than glass wool.

4 is a cross-sectional view taken along the line CC in FIG. 1, and FIG. 5 is a schematic view showing a cross-section taken along the line DD in FIG. FIG. 5 is drawn simply for easy understanding of the shape and arrangement of each member.
The sound absorbing material 7 of the present embodiment is formed so that the size in the vertical direction is substantially the same as the hollow portion of the sound absorbing panel 1, and the two sound absorbing materials 7 are interposed between the reinforcing materials 16 and the sound absorbing panel. They are lined up in the longitudinal direction.
Further, the ends of the sound absorbing materials 7 near both ends of the sound absorbing panel 1 are formed so as to be located closer to the center than the endmost opening row 22 provided in the front plate 1. A gap corresponding to at least one opening row 22 is formed between the side plate 6 and the side plate 6.
Further, each sound absorbing material 7 is also formed between each sound absorbing material 7 and the reinforcing material 16 so as to form a gap corresponding to at least one opening row 22, and there is an opening between each sound absorbing material 7. A gap corresponding to two rows of rows 22 is formed.
By arranging the sound-absorbing material 7 as described above, the ventilation portion 12 is formed in the hollow of the sound-absorbing panel 1 so that the air communicating from the opening 21 of the opening row 22 to the gap portion 11 can flow therethrough.

  Many of the sound absorbing materials used in the sound absorbing panel have a cotton-like structure containing air inside, like the glass wool of the sound absorbing material 7 of the present embodiment, and have high heat insulating performance. For this reason, when the solar cell panel 3 is provided on the back surface of the sound absorbing panel 1, even if the solar cell panel 3 receives light and the temperature rises, the heat is insulated by the sound absorbing material 7 and hardly escapes to the front plate 2 side. The heat generation efficiency of the solar cell panel 3 may be reduced by this heat, or problems such as deterioration and damage of the solar cell panel may occur. However, by providing the ventilation portion 12, the heat of the solar cell panel 3 can be obtained. Is exhausted by the air flowing through the ventilation portion 12 and the gap portion 11, and the temperature rise is suppressed.

  The rectangular parallelepiped-shaped sound absorbing panel 1 as in the present embodiment is used as a soundproof wall by mounting a plurality of vertically stacked columns vertically extending mainly along a road. For this reason, vehicle-driven air is often blown along the longitudinal direction by a vehicle traveling in the vicinity of the front side of the sound absorbing panel. In the sound absorbing panel 1 of the present embodiment, since the opening row 22 at both ends in the longitudinal direction communicates with the ventilation portion 12, the vehicle-passing wind flows into the sound absorption panel 1 from the opening row 22 on the upstream side, and the ventilation portion 12 and the gap 11 to cool the solar cell panel 3, and the air flow as shown in W of FIG. The temperature of the battery panel 3 can be lowered.

Next, FIG. 6 shows another embodiment of the sound absorbing panel according to the present invention. (A) is a plan view, (B) is a front view, (C) is a side view, (D) FIG. 7 is a rear view, FIG. 7 is a cross-sectional view taken along line AA in FIG. 6, and FIG. 8 is a view showing an outline of a cross section taken along line BB in FIG. FIG. 8 is drawn in a simplified manner for easy understanding of the shape and arrangement of each member.
The sound absorbing panel 1 of the present embodiment is formed to have a smaller size in the longitudinal direction than the embodiment shown in FIG. 1, one solar cell panel 3 is attached, and a reinforcing material 16 is attached in the hollow. Absent. Also, two sound absorbing materials 7 are housed in the sound absorbing panel 1, and the shape and arrangement thereof are the main matters different from the embodiment shown in FIG.

The sound absorbing material 7 of the present embodiment is formed so that the length in the longitudinal direction is substantially the same as the hollow portion of the sound absorbing panel 1, and two sound absorbing materials 7 are housed in the sound absorbing panel side by side. Further, the size of each sound absorbing material 7 in the vertical direction is less than half the size of the hollow portion of the sound absorbing panel 1 and is supported by the support bracket 15 by being brought close to the upper frame material 4 and the lower frame material 5 respectively. Has been attached. For this reason, between each sound-absorbing material 7, the ventilation part 12 which leads to the space | gap part 11 from the opening 21 of the front plate 2 is formed in the center of the up-down direction along the longitudinal direction of the sound-absorbing panel 1.
Since the ventilation part 12 of this embodiment is formed long along the longitudinal direction of the sound absorbing panel 1, the solar cell panel 3 is more uniformly cooled by the air flowing in through the ventilation part 12 as shown in W of FIG.

FIG. 9 is a sectional view showing another embodiment of the sound absorbing panel according to the present invention, and FIG. 10 is a view showing an outline of a section of the sound absorbing panel of FIG. FIG. 10 is simplified for easy understanding of the shape and arrangement of each member.
The external appearance of the sound absorbing panel 1 of this embodiment is the same as that of the embodiment shown in FIG. 6, and FIGS. 9 and 10 respectively correspond to the AA cross section and the BB cross section of FIG. FIG.
The main point different from the embodiment shown in FIG. 6 is that one sound absorbing material 7 is housed in the sound absorbing panel 1 of the present embodiment.

  The sound absorbing material 7 of the present embodiment is formed so that the length in the longitudinal direction is substantially the same as the hollow portion of the sound absorbing panel 1, and the size in the vertical direction is smaller than the size of the hollow portion of the sound absorbing panel 1. Is formed. The sound absorbing material 7 is attached to the sound absorbing panel 1 so as to be supported by the support metal fitting 15 in the vertical direction of the sound absorbing panel 1, and between the upper frame material 4 and the lower frame material 5 and the sound absorbing material 7, the front plate 2. Ventilation portions 12 communicating from the opening 21 to the gap portion 11 are formed on both ends in the vertical direction along the longitudinal direction of the sound absorbing panel 1.

  As in the embodiment of FIG. 6, the ventilation portion 12 of the present embodiment is formed longer along the longitudinal direction of the sound absorbing panel 1, so that the solar cell panel 3 can be cooled more uniformly. Further, as described above, since the sound absorbing panel 1 is attached with the longitudinal direction thereof being stacked in the horizontal direction, each ventilation portion 12 of the present embodiment has the openings 21 formed in the upper and lower portions of the front plate 2. It is formed so that it may lead to. For this reason, the air in the gap portion 11 heated by the solar cell panel 3 expands and becomes light, flows out from the sound absorbing panel 1 through the upper ventilation portion 12, and external air flows in through the lower ventilation portion 12. An air flow as shown by W in FIG. 10 is easily formed, and the solar cell panel 3 is cooled more efficiently.

  In the embodiment shown in FIGS. 1, 6, and 9, there is shown a configuration in which the ventilation portions 12 are provided at the longitudinal end and center of the sound absorbing panel 1, the vertical center, and the vertical end, respectively. However, the present invention is not limited to this, and a combination thereof may be formed. Moreover, in the said embodiment, the magnitude | size of the up-down direction and a longitudinal direction of the sound-absorbing material 7 is formed smaller than the magnitude | size of the hollow part in the sound-absorbing panel 1, and it leads to the opening 21 without giving a special process. Although the ventilation part 12 is formed, it is not restricted to this, You may form the ventilation part 12 by providing a notch and a hole in the sound-absorbing material 7. FIG.

  In the sound absorbing panel 1 of the embodiment described above, the gap portion 11 is formed without attaching other members between the solar cell panel 3 and the sound absorbing material 7, but the present invention is not limited to this. These members may be attached. As an example, a plate material may be provided between the sound absorbing material 7 and the solar cell panel 3, a reinforcing beam may be provided across the upper frame material 4 and the lower frame material 5, and the upper frame material 4 An end portion on the back side may be extended downward and formed integrally with the lower frame member 5. When a plate-like member is provided between the sound absorbing material 7 and the solar cell panel 3, a hole or a gap through which the plate-like member can be vented so that air from the gap 11 can directly contact the solar cell panel 3. Is preferably provided.

  Further, the sound absorbing panel 1 of the embodiment described above is installed as a soundproof wall mainly along a road or the like by stacking a plurality of stages in the vertical direction. Some of such soundproof walls are provided vertically in the vertical direction, and others are provided so as to be curved so as to cover the road. Unlike the soundproof wall provided vertically, the sound absorbing panel constituting the soundproof wall provided curved as described above is attached with its back surface inclined obliquely upward rather than horizontally. For this reason, when the solar cell panel 3 is provided on the back side as in the sound absorbing panel 1 of the present invention, the light receiving surface is provided toward the sun so that power generation is performed more efficiently.

  Further, like the sound absorbing panel 1 shown in the above embodiment, the sound absorbing panel 1 is formed by providing the front plate 2 in a U-shape so that the center in the vertical direction of the sound absorbing panel 1 is directed to the inside of the sound absorbing panel 1. Thus, when the soundproof wall provided in a curved shape is configured, the surface formed by the front plate 2 is formed in a smooth shape that is closer to a curved surface.

DESCRIPTION OF SYMBOLS 1 Sound absorption panel 11 Cavity part 12 Ventilation part 15 Support metal fitting 16 Reinforcement material 2 Front plate 21 Opening hole 22 Opening row 3 Solar cell panel 31 Rear frame body 35 Rear side cover 36 Rear lower cover 4 Upper frame material 5 Lower frame material 6 Side plate 7 Sound absorbing material

Claims (3)

A sound absorbing material is housed in a hollow formed by facing a front plate having a large number of apertures and a solar cell panel provided on the back side,
A gap is provided between the sound absorbing material and the solar cell panel,
A sound-absorbing panel, wherein a ventilation portion through which air can flow is provided between the gap and the opening. The sound absorbing panel is formed in a substantially rectangular parallelepiped shape,
The opening is formed in a slit shape long in the longitudinal direction of the sound absorbing panel,
The opening is formed with a plurality of opening rows arranged in parallel in the vertical direction of the sound absorbing panel,
The aperture rows are arranged in a plurality of rows in the longitudinal direction of the sound absorbing panel, and
The end of the sound absorbing material is provided closer to the center than the row of holes provided at the end of the sound absorbing panel, and the ventilation portion is formed outward from the end of the sound absorbing material. The sound absorbing panel according to 1.   The sound-absorbing panel according to claim 1 or 2, wherein the ventilation portions are respectively provided outside the both ends of the sound-absorbing material.

Images