JP6882026B2 - Radiant panel for air conditioning - Google Patents

Description

The present invention relates to a radiant panel used in a radiant air conditioning system.

The radiant air-conditioning system manages the indoor load by exchanging heat between the fluid (medium) such as water and the radiant panel for air-conditioning, and is quieter with almost no noise compared to the blow-out type air-conditioning system. It has the advantage of being excellent in air conditioning, being friendly to people because it is not exposed to the wind, and being able to contribute to controlling running costs by effectively using groundwater, etc., and is widely used in various facilities and general housing. It's getting better.

In this radiant air conditioning system, it is effective to increase the area of the radiant surface in order to improve the air conditioning efficiency. Therefore, the applicant of the present application pierces a large number of ribs on the radiant surface in Patent Documents 1 and 2. The installed radiation panel was disclosed.

In both Patent Documents 1 and 2, the radiation panel of the embodiment is manufactured by extrusion, and in Patent Document 1, the rib is simply in the shape of a strip. Further, basically, the adjacent ribs are parallel to each other when viewed from the longitudinal axis direction thereof. However, in FIG. 14 of Patent Document 1, since the substrate is bent in a zigzag shape, the rib hanging from the corner of the substrate and the rib adjacent to the rib have an inverted C shape.

On the other hand, in Patent Document 2, most of the ribs have a vertical posture that hangs down at a right angle from the substrate, but FIGS. 14 and 15 disclose a posture that is inclined with respect to the vertical straight line. Further, in Patent Document 2, a horizontal flange is formed at the lower end of each rib.

Japanese Unexamined Patent Publication No. 2008-128624 Japanese Unexamined Patent Publication No. 2010-101603

In Patent Documents 1 and 2, the radiation area can be remarkably increased as compared with the case where the lower surface of the radiation panel is a simple flat plate surface, so that the air conditioning efficiency can be improved. In addition, since the ribs have a function of absorbing air vibrations, it can be said that a sound reduction effect of attenuating sound can be exhibited as compared with the case of a simple flat plate.

The present invention is an object of further development of Patent Documents 1 and 2 to further improve air conditioning efficiency and sound reduction effect.

The invention of the present application includes the constitution of each claim. Of these, in the invention of claim 1,
"It is provided with a flat plate structure substrate having one side as a radial surface and a pipe through which a fluid that exchanges heat with the substrate flows.
A group of plate-shaped main ribs having two side surfaces are projected in parallel on the radial surface of the substrate, and at least one of the plate-shaped main ribs located between the base and the tip of each main rib is projected on both side surfaces of the main ribs. The auxiliary branch ribs of the above are formed in an independent state so that flat surfaces exist on the base side and the tip side of the main rib with the auxiliary branch rib sandwiched between them. "
In the basic configuration
"The auxiliary branch rib on one side of the main rib and the auxiliary branch rib on the other side are arranged asymmetrically with respect to the axial direction of the main rib so as to be displaced in the protruding direction of the main rib, and the auxiliary branch rib is arranged. The protruding height of the branch ribs is larger than the plate thickness of the main ribs. "
The configuration is added.
The group of main ribs may be formed on at least a part of the wide surface.

The invention of claim 2 has the same basic configuration as that of claim 1.
"By arranging the adjacent main ribs in a C-shaped or inverted C-shaped posture in which the distance between the adjacent main ribs changes as the distance from the substrate increases, the space between the adjacent main ribs increases in width as the distance from the substrate increases. It is formed in a divergent space or a constricted space whose width narrows as the distance from the substrate increases, and a lip protruding only in the divergent space is provided at the tip of each main rib. "
The configuration is added.

The invention of claim 3 is claimed in claim 1 or 2.
"A plurality of auxiliary intermediate ribs having a height lower than that of the main ribs are projected at each portion of the radial surface of the substrate between adjacent main ribs. "
It is configured as.

The invention of claim 4 is the invention of claim 2 or 3.
"By alternately tilting the posture of the main rib, the lower constriction space and the downward spreading space are alternately arranged."
It is configured as.

The invention of claim 5 is the invention of any one of claims 1 to 4.
"The auxiliary branch rib and the auxiliary intermediate rib are formed in a chevron cross section. "
It is configured as.

In the present inventions, since the auxiliary branch rib is formed on the main ribs, the compared with the case of forming the same height at the same pitch as Patent Documents 1 and 2 the main ribs, Ru can increase the area of the radiating surface.

Therefore, in either case, the area of the radiating surface can be increased to improve the air conditioning efficiency (heat exchange efficiency). Alternatively, it can be made compact while maintaining the same air conditioning efficiency. In particular, it is more preferable to form both the auxiliary branch rib and the auxiliary intermediate rib as in claim 3, because the effect of increasing the radial surface is improved.

In addition, sound is transmitted through the air as vibration of air, and if the radiation panel is a simple flat plate, the sound is reflected in the room with almost no attenuation of its energy, but as in the present invention, the auxiliary branch rib is attached to the main rib. When the shape is formed, the side surface of the main rib becomes a complicated shape, so that the sound wave (vibration of air) is disturbed or diffusely reflected by the auxiliary branch rib, and it can be said that the kinetic energy is greatly attenuated. Therefore, it can be said that the sound reduction effect can be improved.

In the configuration of claim 2, since the adjacent main ribs are in a substantially C-shaped or inverted C-shaped posture in the cross section, they are excellent in the function of destroying the vibration of air and in cooperation with the substrate. , The damping function of the vibration energy due to diffused reflection is also high, and therefore, it can be said that the sound reduction function is further enhanced.

Further, when the main ribs of adjacent are reversed V-shape, since the space between the main ribs which are arranged in the reverse V-shape is bag-shaped tapered-off space, sound not reflected into the room tapered-off and diffuse in space appears a phenomenon that would consume the kinetic energy, be said sound-absorbing function is exerted more strongly.

Further, when the auxiliary intermediate rib is formed on the substrate as in claim 3, the diffused reflection of sound becomes more complicated and the vibration of air is effectively attenuated, so that it can be said that the sound reduction function is further enhanced. In addition, the provision of auxiliary intermediate ribs also contributes to the improvement of air conditioning efficiency by increasing the radiation area .

As in claim 4, if the posture of the main rib is changed alternately to form the lower constriction space and the downward spreading space alternately, for example, in the case of a radiant panel for the ceiling, the sound generated directly underneath is also reversed. It can be said that the sound generated in the room can be absorbed evenly because it can be confined in the space between the main ribs in the character posture.

The auxiliary branch rib and the auxiliary intermediate rib can adopt a shape having a square cross section (square), but if a shape having a chevron cross section as in claim 5 is adopted, the function of diffusely reflecting sound is excellent, so that the sound absorption performance is improved. It can be said that it can contribute to.

It is a front view of the 1st Embodiment. It is an enlarged view for demonstrating sound absorption property. It is a partial front view of the 2nd to 6th embodiments. It is a partial front view of the 7th Embodiment and the reference example.

(1). Structure of First Embodiment Next, an embodiment of the present invention will be described with reference to the drawings. First, the first embodiment shown in FIGS. 1 and 2 will be described. The radiation panel of the present embodiment is arranged on the ceiling, and the basic structure is the same as that described in Patent Document 2. That is, the radiation panel is configured as one unit by arranging a plurality of unit panels 1 formed in a band shape in parallel (the entire radiation panel may be formed into a single structure).

In the figure, the entire radiation panel is not displayed, but a state (front view) of one unit panel 1 viewed from the longitudinal axis direction thereof is displayed. In the following, the front-back and left-right wordings are used to specify the direction, but the longitudinal axis direction of the unit panel 1 is defined as the front-back direction, and the horizontal direction orthogonal to this is defined as the left-right direction.

Each unit panel 1 is manufactured by extruding a metal such as aluminum, and includes, for example, a flat substrate 2 having a thickness of about 2 mm. Since the radiant panel is arranged on the ceiling, the lower surface of the substrate 2 is a radiant surface, and a pipe through which a heat medium (for example, water) flows in the left and right intermediate portions (intermediate portion in the width direction of the unit panel 1) of the upper surfaces. 3 pipe holder 4 for holding the can is formed integrally so as to extend along the longitudinal centerline. The entire pipe holder portion 4 is located on the upper side of the substrate 2, and the upper end thereof is slightly narrowed so that the pipe 3 can be forcibly fitted. The pipe 3 is bent in a zigzag manner in a plan view, and one straight line portion is fitted in the pipe holder portion 4 of one unit panel 1.

Each unit panel 1 is connected to a horizontal bar 5 for suspension arranged in a posture orthogonal to the unit panel 1. The horizontal bar 5 has a U-shaped opening downward in a side view having front and rear side plates 6, and upward locking ridges 7 are integrally formed on the left and right longitudinal side edges of the substrate 2, and the locking ridges 7 are integrally formed. The locking claw 8 formed at the upper end of the 7 is locked to the engaging receiving portion 9 formed on the horizontal bar 5. Further, on the left and right longitudinal side edges of the substrate 2, the polymerization step portions 10 and 11 are formed so that the longitudinal side edges of the adjacent substrates 2 are vertically overlapped with each other. Therefore, the substrates 2 adjacent to each other on the left and right are held in a state like a single plate.

Substrate 2 constituting the unit panel 1, the upper and lower surfaces from being disposed in a horizontal position (both sides) are turned wide surface, the group of main ribs 12 on the lower surface, extending over the entire length before and after , It is formed in parallel in the left-right direction (width direction). In the present embodiment, the main ribs 12 are arranged at a constant pitch P, but the adjacent main ribs 12 are alternately inclined in opposite directions with respect to the perpendicular line of the substrate 2 in the front view, and The inclination angle θ with respect to the perpendicular line orthogonal to the lower surface of the substrate 2 is the same.

Therefore, the adjacent main ribs 12 alternately change their postures into a C-shaped posture and an inverted C-shaped posture when viewed from the front. Further, since the adjacent main ribs 12 are alternately arranged in the C-shaped posture and the inverted C-shaped posture, the downward spreading space sandwiched between the main ribs 12 in the C-shaped posture below the substrate 4 (the tip). The expansive space) 13 and the lower constricted space (tip constricted space) 14 sandwiched between the main ribs 12 in an inverted C-shaped posture are alternately arranged. Then, the lower end of each main ribs 12, that form a horizontal-shaped lip 15 which protrudes toward the lower spreading space 13. The tip of the lip 15 is located just below the base of the main rib 12.

In addition, the middle height position of the right and left sides of the main ribs 12 (front and back sides), the auxiliary branch rib 16 of triangular cross section extending over the entire length of the main ribs 12, one article (by one step) to form .. Therefore, each auxiliary branch rib 16 projects toward the downward spreading space 13 and the lower constriction space 14.
In the main rib 12 of the first row, the heights of the auxiliary branch ribs 16 on the left and right sides are different, and therefore each main rib 12 is asymmetrical in front view. Further, as is clearly shown in FIG. 2, the protruding height of the auxiliary branch rib 16 is larger than the plate thickness of the main rib 12. The auxiliary branch ribs 16 may be plural rows formed by changing the respective height on the left and right sides of the main ribs 12 (both sides) may have different number of threads in the right and left sides.

An auxiliary intermediate rib 17 having a triangular cross section is formed on the lower surface of the substrate 2. Three auxiliary intermediate ribs 17 are formed at the location of the downward spreading space 13, and two are formed at the location of the lower constriction space 14, but the number of the auxiliary intermediate ribs 17 can be arbitrarily set. It is also possible to form the lower surface of the substrate 2 in a serrated shape by making the auxiliary intermediate ribs 17 continuous. Whether the auxiliary branch rib 16 or the auxiliary intermediate rib 17 has a cross-sectional shape such as a trapezoid or a semicircle as another example of the cross-sectional chevron shape, a cross-sectional shape other than the chevron shape can be adopted.

(2). Operation of the first embodiment In this way, when the auxiliary branch rib 16 is formed on the main rib 12 and the auxiliary intermediate rib 17 is formed on the substrate 2, the surface area of the lower surface of the unit panel 1 is remarkably increased. The radiation area is significantly increased as compared with the case where the main rib 12 has the same pitch and the same height as the ribs of Patent Documents 1 and 2.

As a result, the efficiency of heat exchange between the heat medium passing through the pipe 3 and the room can be improved, and the air conditioning efficiency (heat transfer efficiency) can be improved. Alternatively, even if the pitch P of the main rib 12 is reduced or the height is reduced, the radiation area equivalent to that of Patent Documents 1 and 2 can be secured, so that the radiation panel for air conditioning (unit) does not reduce the air conditioning efficiency. Panel 1) can be made compact (thinner).

The sound generated in the room reaches the lower surface of the unit panel 1 as vibration of air, is reflected by the unit panel 1 and returns to the room, but the vibration (wave) of the sound is oblique to the left and right with respect to the unit panel 1. When hit from the direction, as shown in FIG. 2 (A), the sound wave (vibration of air) is generated by the side surface of the main rib 12 (wide surface on the left and right), the surface of the auxiliary branch rib 16, the surface of the auxiliary intermediate rib 17, and the like. It collides with and reflects intricately.

For this reason, the energy of the sound wave is greatly attenuated as the reflection is repeated, and the sound becomes smaller. That is, the sound reduction effect is exhibited. In particular, since the lower constriction space 14 has a bag shape, the sound wave is in a state of being confined in the lower constriction space 14 and can be efficiently attenuated. As a result, it can be said that high sound reduction performance can be ensured.

FIG. 2B shows the case where the sound is generated directly below, and in this case as well, the sound wave is temporarily reflected by the auxiliary intermediate rib 17, and is secondarily reflected by the main rib 12 and the auxiliary branch. Since the sound is diffusely reflected by the rib 16, the sound reduction performance can be improved. Further, when the sound wave comes from directly below, the sound wave tends to move toward the inner side surface of the spaces 13 and 14 due to the diffraction phenomenon shown by the arrow 18 in FIG. 2 (B), so that the sound wave is moved to the spaces 13 and 14. The effect of confining and consuming energy is exhibited (this point is also the same when the sound wave hits the unit panel 1 from diagonally below).

It can be said that sounds of various frequencies can be efficiently reduced by devising the height and pitch P of the main rib 12, the number of steps and protrusion height of the auxiliary branch rib 16, the height of the auxiliary intermediate rib 17, the left and right pitch, and the like.

(3). Other Embodiments Next, other embodiments and reference examples shown in FIGS. 3 and 4 will be described. The second embodiment shown in FIG. 3 (A) is basically the same as the first embodiment, and the difference from the first embodiment is that the auxiliary branch rib 16 and the auxiliary intermediate rib 17 have a square cross section ( It is a point formed in a quadrangle). In this embodiment, one of the auxiliary branch rib 16 and the auxiliary intermediate rib 17 can be formed into a triangular cross section.

The third embodiment shown in FIG. 3B is a modification of the second embodiment, and the height of the main rib 12 is made higher than that of the second embodiment, and the auxiliary branch ribs 16 are provided in two stages (two rows each). ) Forming. In this case, it can be said that the radiation effect and the sound reduction effect are further enhanced.

In the first reference example shown in FIG. 3C, the main rib 12 does not have a lip at the lower end, and auxiliary branch ribs 16 having a plurality of stages are formed on the left and right side surfaces (front and back side surfaces), and the lower surface of the substrate 2 is formed. Auxiliary intermediate rib 17 is formed in the. The auxiliary intermediate rib 17 has a triangular cross section, and the auxiliary branch rib 16 has a quadrangular cross section. The second reference example shown in FIG. 3D is a modification of the first reference example, and the auxiliary branch rib 16 is also formed in a triangular cross section.

The fourth embodiment shown in FIG. 3 (E) is similar to the first reference example of (C), but in this embodiment, the auxiliary branch rib 16 is formed in a horizontal posture, and the lower end of the main rib 12 is formed. The lip 15 is formed so as to project toward the downward spreading space 13. The auxiliary intermediate rib 17 is formed to have a square cross section.

Fifth shown in FIG. 4A is a modification of the first embodiment, in which the pipe holder portion 4 is projected below the substrate 2. In this embodiment, since the heat is less dissipated to the ceiling, it can be said that it is preferable for improving the air conditioning efficiency.

In the fifth embodiment shown in FIG. 4B, the main rib 12 is the first main rib 12a parallel to the perpendicular line of the substrate 2, the second main rib 12b inclined to one side with respect to the perpendicular line of the substrate 2, and the substrate. It is composed of a third main rib 12c inclined to the other side with respect to the perpendicular line of 2, and the first main rib 12a is arranged in the order of the first main rib 12a, the second main rib 12b, the first main rib 12a, and the third main rib 12c. The second main rib 12b and the third main rib 12c are arranged on both sides of the sandwich.

In FIG. 4B, the auxiliary branch rib 16, the auxiliary intermediate rib 17, and the lip 15 are omitted . In this embodiment, the downward spreading space 13 and the lower constriction space 14 appear alternately in pairs.

In the seventh embodiment shown in FIG. 4C, two types of main ribs 12d and 12e that are inclined in the same direction with respect to the perpendicular line of the substrate 2 but have different inclination angles are alternately formed in the left-right direction. Auxiliary branch rib 16 and the auxiliary intermediate rib 17 in this embodiment that have been omitted.

In the fourth reference example shown in FIG. 4 (D) and the fifth reference example shown in FIG. 4 (E), each main rib 12 is in a posture parallel to the perpendicular line of the substrate 2. Therefore, the adjacent main ribs 12 project from the substrate 2 in a parallel posture when viewed from the front.

Then, in FIG. 4 (D), flaky (fin-shaped) auxiliary branch ribs 16 are formed in multiple stages on the left and right side surfaces of each main rib 12, and in (E), the auxiliary branch ribs 16 having a triangular cross section are formed by 1. It is formed step by step. In FIG. 4D, each auxiliary branch rib 16 may be formed in a chevron shape such as a triangle. Further, when the auxiliary branch ribs 16 are formed in multiple stages, the left-right width can be reduced or increased as the distance from the substrate increases.

Although the embodiments of the present invention have been described above, the present invention can be embodied in various ways. For example, it is possible to alternately form main ribs of different heights.

The invention of the present application can be actually embodied in a radiant panel for air conditioning. Therefore, it can be used industrially.

1 Unit panel 2 Substrate 3 Pipe through which heat medium flows 4 Pipe holder 12, 12a to 12h Main rib 13 Downward expansion space (tip expansion space)
14 Lower constriction space (tip constriction space)
15 Lip 16 Auxiliary branch rib 17 Auxiliary intermediate rib

Claims (5)

It is provided with a flat plate structure substrate having one side as a radial surface and a pipe through which a fluid that exchanges heat with the substrate flows.
A group of plate-shaped main ribs having two side surfaces are projected in parallel on the radial surface of the substrate, and at least one of the plate-shaped main ribs located between the base and the tip of each main rib is projected on both side surfaces of the main ribs. The auxiliary branch ribs of the above are formed in an independent state so that flat surfaces exist on the base side and the tip side of the main rib with the auxiliary branch rib sandwiched therein.
The auxiliary branch rib on one side of the main rib and the auxiliary branch rib on the other side are arranged asymmetrically with respect to the axial direction of the main rib so as to be displaced in the protruding direction of the main rib, and the auxiliary branch is arranged. The protruding height of the rib is larger than the plate thickness of the main rib.
Radiant panel for air conditioning. It is provided with a flat plate structure substrate having one side as a radial surface and a pipe through which a fluid that exchanges heat with the substrate flows.
A group of plate-shaped main ribs having two side surfaces are projected in parallel on the radial surface of the substrate, and at least one of the plate-shaped main ribs located between the base and the tip of each main rib is projected on both side surfaces of the main ribs. The auxiliary branch ribs of the above are formed in an independent state so that flat surfaces exist on the base side and the tip side of the main rib with the auxiliary branch rib sandwiched therein.
By arranging the adjacent main ribs in a C-shaped or inverted C-shaped posture in which the distance between the adjacent main ribs changes as the distance from the substrate increases, the space between the adjacent main ribs expands as the distance from the substrate increases. It is formed in an expansive space or a constricted space whose width narrows as the distance from the substrate increases, and a lip protruding only in the expansive space is provided at the tip of each main rib.
Radiant panel for air conditioning. A plurality of auxiliary intermediate ribs having a height lower than that of the main ribs are projected from each portion of the radial surface of the substrate between adjacent main ribs.
The radiant panel for air conditioning according to claim 1 or 2. By alternately tilting the posture of the main rib, the lower constriction space and the downward spreading space are alternately arranged.
The radiant panel for air conditioning according to claim 2 or 3. The auxiliary branch rib and the auxiliary intermediate rib are formed in a chevron cross section.
The radiant panel for air conditioning according to any one of claims 1 to 4.

Images