Radiant panels

Abstract

To provide a radiation panel capable of efficiently performing air conditioning by reliably preventing heat sinks from rising from a panel main body.SOLUTION: A radiation panel 1 includes a panel body 10, a plurality of heat sinks 20 arranged in parallel on the panel body 10, a pipe 30 through which a heat medium fluid passes, and a crosspiece member 40 fixed to the panel body 10 so as to cross the plurality of heat sinks 30. The heat sink 20 includes a belt-like substrate 21, a mounting part 22 to which the pipe 30 is mounted, and a pair of standing members 23, 24 provided on both sides in a width direction of the mounting part 22 in the substrate 21. The pair of standing members 23, 24 stand in a direction orthogonal to the substrate 21 and extend above an upper end of the pipe 30 attached to the mounting part 22. A lower edge part 41 of the crosspiece member 40 is formed in a linear shape along a transverse direction of the heat sink, and abuts on upper ends of the pair of standing members.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a radiation panel.

Background Art

[0002] Conventionally, a radiation panel has been installed on a ceiling or the like for indoor heating and cooling. For example, Patent Document 1 discloses a radiation panel including a panel body, a heat sink, and a heat transfer pipe, in which a straight pipe portion of the heat transfer pipe is attached to the heat sink. The heat sink is adhered to the panel body by a double-sided tape or an adhesive material, etc. However, when maintaining the state of placing a weight or the like on the heat sink for a long time to increase the adhesion, the manufacturing efficiency is likely to decrease. On the other hand, if the adhesion between the heat sink and the panel body is insufficient, there is a risk that the heat sink may lift off from the panel body, resulting in a decrease in heat transfer efficiency.

[0003] Therefore, in the radiation panel of Patent Document 1, a cross member is provided so as to cross the straight pipe portion of the heat transfer pipe, thereby preventing the heat sink from lifting off from the panel body.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, since the above conventional radiation panel is configured such that the cross member abuts against and locally presses the exposed portion of the heat transfer pipe attached to the heat sink, when the pressing direction of the heat transfer pipe is deviated from the vertical direction, a shearing force may act between the heat sink and the panel body, leading to the risk of the heat sink lifting off.

[0006] Therefore, the present invention aims to provide a radiant panel that can efficiently perform air conditioning by reliably preventing the heat sink from lifting away from the panel body. [Means for solving the problem]

[0007] The object of the present invention is a radiant panel comprising a panel body, a plurality of heat sinks arranged in parallel on the panel body, a pipe through which a heat transfer fluid passes, and a crossbar member fixed to the panel body so as to traverse the plurality of heat sinks, wherein the heat sink comprises a strip-shaped substrate, a mounting portion provided in the center of the width direction of the substrate so as to extend along the longitudinal direction and to which the pipe is mounted, and a pair of upright members provided on both sides of the mounting portion on the substrate in the width direction, the pair of upright members standing upright in a direction perpendicular to the substrate and extending above the upper end of the pipe mounted on the mounting portion, and the lower edge of the crossbar member being formed in a straight line along the transverse direction of the heat sink and abutting against the upper end of the pair of upright members The panel body has a peripheral wall formed along its edge, and the peripheral wall comprises a flange portion formed to protrude outward from the upper end, and a pair of upright walls that rise from the tip edge of the flange portion and face each other, and both ends of the crossbar member are fixed to the pair of upright walls respectively. This is achieved by radiant panels.

[0008] In this radiating panel, it is preferable that the upright member has an enlarged portion that increases the contact area with the crossbar member.

[0009] It is preferable that the upright member is positioned with a gap between it and the widthwise edge of the substrate. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a radiant panel that can reliably prevent the heat sink from lifting away from the panel body and can perform air conditioning efficiently. [Brief explanation of the drawing]

[0011] [Figure 1] This is a plan view of a radiation panel relating to one embodiment of the present invention. [Figure 2] This is an enlarged view of the main part of section AA in Figure 1. [Figure 3] Figure 1 is an enlarged view of the main part of the BB cross section. [Figure 4] Figure 1 is an exploded view of the radiation panel. [Figure 5] Cross-sectional view of a main part of a radiation panel according to another embodiment of the present invention. [Figure 6] This is a cross-sectional view of a main part of a radiation panel according to yet another embodiment of the present invention. [Modes for carrying out the invention]

[0012] Embodiments of the present invention will now be described with reference to the accompanying drawings. Figure 1 is a plan view of a radiant panel according to one embodiment of the present invention. The radiant panel 1 shown in Figure 1 is a radiant panel for heating and cooling that is installed on the ceiling of an indoor building, and comprises a panel body 10, a plurality of (six in this embodiment) heat sinks 20 arranged in parallel on the upper surface of the panel body 10, pipes 30 attached to the heat sinks 20, and a plurality of (two in this embodiment) cross members 40 that fix the heat sinks 20 to the panel body 10.

[0013] The panel body 10 is a flat plate-shaped member formed in a square shape in plan view, made of a metal material with high thermal conductivity such as aluminum, and a peripheral wall 11 is formed along the edge of the panel body 10. The peripheral wall 11 includes a flange portion 12 formed to protrude outward from the upper end, and a pair of upright walls 13a and 13b that rise from the tip edge of the flange portion 12 and face each other, and both ends of the batten member 40 are fixed to the pair of upright walls 13a and 13b, respectively. In this embodiment, the lower surface of the panel body 10 is formed to be flat, but multiple ribs or curved portions may be provided. The panel body 10 may have a number of small holes as needed. The panel body 10 can be attached to a ceiling or the like using hooks (not shown) attached to the peripheral wall 11, but is not limited to this, and for example, the flange portion 12 may be locked to a grid-shaped ceiling frame, or suspension bolts (not shown) attached to the batten member 40 may be used.

[0014] The heat sink 20 is a metal component with high thermal conductivity and comprises a strip-shaped substrate 21, a mounting portion 22 provided in the center of the substrate 21 in the width direction so as to extend along the longitudinal direction, and a pair of upright members 23, 24 provided on both sides of the mounting portion 22 in the width direction on the substrate 21, and is manufactured, for example, by extrusion molding. Multiple heat sinks 20 are arranged parallel to each other at a certain interval. Each heat sink 20 may be attached to the panel body 10 with double-sided tape or adhesive, or it may simply be placed on the panel body 10 without being attached.

[0015] The pipe 30 is configured such that the flow path meanders, with the ends of adjacent straight sections 31 connected via curved sections 32, and the heat transfer fluid passes through the interior from one end 33 to the other end 34. The mounting section 22 of each heat sink 20 is formed in a semi-cylindrical shape with an open top, and the straight section 31 of the pipe 30 is mounted on each, with the upper end of the pipe 30 exposed from the mounting section 22. The material of the pipe 30 is not particularly limited, but heat transfer tubes made of materials with high thermal conductivity such as aluminum, copper, or graphite can preferably be used as the pipe 30. The configuration of the pipe 30 is also not particularly limited, and in addition to a single-layer heat transfer tube, it may be a double-layer tube in which only the inner surface of the heat transfer tube is covered with a resin coating layer such as polyethylene, or a triple-layer tube in which both the inner and outer surfaces of the heat transfer tube are covered with a resin coating layer.

[0016] The crossbar member 40 is a cylindrical body formed in a U-shape with an open bottom cross-section, and is arranged to traverse multiple heat sinks 20, with both ends fixed to the upright walls 13a and 13b of the panel body 10. The two crossbar members 40 are spaced apart from each other so as to cover directly above both ends in the longitudinal direction of the heat sinks 20. The shape of the crossbar member 40 is not limited to the shape of the lower edge 41 being formed in a straight line along the transverse direction of the heat sink 20, and may be other than the shape of this embodiment, for example, a rectangular tube, cylindrical, prismatic, or cylindrical shape. Furthermore, the fixing points of the crossbar member 40 to the panel body 10 are not particularly limited, and for example, projections such as ribs can be formed on the panel body 10 and the panel body 10 can be fixed to these projections.

[0017] FIG. 2 is an enlarged view of the main part of the A-A cross-section of FIG. 1, and FIG. 3 is an enlarged view of the main part of the B-B cross-section of FIG. 1. As shown in FIGS. 2 and 3, each of the upright members 23, 24 is formed in a flat plate shape, and is provided so as to stand upright in a direction orthogonal to the substrate 21 from the upper surface of the substrate 21 with a gap from the edge in the width direction of the substrate 21. The upper ends of the upright members 23, 24 extend above the upper end of the pipe 30 mounted on the mounting portion 22. The upright members 23, 24 of the present embodiment are provided over the entire length in the longitudinal direction of the substrate 21, but may be divided into a plurality along the longitudinal direction of the substrate 21, or may be provided only at the locations where the cross members 40 abut.

[0018] At the upper ends of the upright members 23, 24, enlarged portions 23a, 24a are formed so as to be wider than the lower end side. The enlarged portions 23a, 24a are formed in a strip shape extending in the longitudinal direction of the substrate 21, and increase the contact area with the cross member 40.

[0019] The cross member 40 has a lower edge portion 41 which is a U-shaped tip portion formed linearly along the transverse direction of the heat sink 20, and abuts against the upper ends of the pair of upright members 23, 24. Since the upper ends of the upright members 23, 24 are located above the upper end of the pipe 30 mounted on the mounting portion 22, a slight gap is formed between the upper end of the pipe 30 and the cross member 40. Note that the upper end of the pipe 30 and the cross member 40 may be in contact with each other without providing a gap between the upper end of the pipe 30 and the cross member 40.

[0020] As shown in FIG. 4, the radiation panel 1 having the above configuration arranges two cross members 40, 40 so as to cross both longitudinal ends of a plurality of heat sinks 20 arranged in parallel at a predetermined position of the panel body 10, and presses the heat sink 20 against the panel body 10 by each cross member 40, and by attaching both ends of the cross member 40 to the panel body 10 with fasteners 50, the cross member 40 can be fixed to the panel body 10 in a state where the lower edge portion 41 abuts against the heat sink 20.

[0021] In the radiant panel 1 of this embodiment, the heat sink 20 is provided with a pair of upright members 23 and 24 arranged on both sides in the width direction of the mounting portion 22. The lower edge 41 of the crossbar member 40 is formed linearly along the transverse direction of the heat sink 20 and abuts against the upper ends of the pair of upright members 23 and 24. This allows a vertical pressing force to be applied to the substrate 21 on both sides in the width direction of the mounting portion 22, thereby ensuring that the heat sink 20 is in contact with the panel body 10. Therefore, good heat transfer between the panel body 10 and the heat sink 20 can be maintained, and air conditioning can be performed efficiently. The position where the crossbar member 40 abuts against the pair of upright members 23 and 24 is preferably at both ends in the longitudinal direction of the heat sink 20, as in this embodiment, but it is not necessarily limited to this position.

[0022] In this embodiment, the pair of upright members 23 and 24 are provided with enlarged portions 23a and 24a that increase the contact area with the crossbar member 40, thereby ensuring contact between the panel body 10 and the heat sink 20. However, as shown in Figure 5(a), the pair of upright members 23 and 24 may be configured to contact the crossbar member 40 without having enlarged portions at their upper ends. Alternatively, as shown in Figure 5(b), the cross-sections of the pair of upright members 23 and 24 may be formed to gradually increase in size from the lower end to the upper end, or as shown in Figure 5(c), the cross-sections of the pair of upright members 23 and 24 may be formed to gradually decrease in size from the lower end to the upper end.

[0023] In this embodiment, the pair of upright members 23 and 24 are positioned with a gap between them and the widthwise edge of the substrate 21 to facilitate contact of the entire substrate 21 with the panel body 10. However, as shown in Figure 6(a), the pair of upright members 23 and 24 can also be formed in a bent shape so as to stand up from the widthwise edge of the substrate 21. In this configuration, as shown in Figure 6(b), the upper ends of the pair of upright members 23 and 24 may be bent outward to form enlarged portions 23a and 24a, or as shown in Figure 6(c), the upper ends of the pair of upright members 23 and 24 may be bent inward to form enlarged portions 23a and 24a. Note that in Figures 5 and 6, the same reference numerals are used for components that are the same as those in Figure 2. [Explanation of Symbols]

[0024] 1 Radiation Panel 10 Panel Body 20 Heatsinks 21 circuit boards 22 Mounting part 23,24 Erecting member 23a, 24a Enlarged section 30 pipes 40 Crossbar members 41 Lower edge 50 Fasteners

Claims

1. A radiant panel comprising a panel body, a plurality of heat sinks arranged in parallel on the panel body, a pipe through which a heat transfer fluid passes, and a crossbar fixed to the panel body so as to traverse the plurality of heat sinks, The heat sink comprises a strip-shaped substrate, a mounting portion provided in the center of the substrate in the width direction so as to extend along the longitudinal direction and to which the pipe is attached, and a pair of upright members provided on both sides of the mounting portion on the substrate in the width direction. The pair of upright members stand upright in a direction perpendicular to the substrate and extend above the upper end of the pipe attached to the mounting portion. The lower edge of the crossbar member is formed in a straight line along the transverse direction of the heat sink and abuts against the upper ends of the pair of upright members. The panel body has a peripheral wall formed along its edge, The peripheral wall comprises a flange portion formed to protrude outward from the upper end, and a pair of upright walls that rise from the leading edge of the flange portion and face each other. A radiating panel in which both ends of the aforementioned crossbar member are fixed to a pair of the aforementioned upright walls.

2. The radiant panel according to claim 1, wherein the upright member comprises an enlarged portion that increases the contact area with the crossbar member.

3. The radiant panel according to claim 1 or 2, wherein the upright member is arranged with a gap between it and the widthwise edge of the substrate.

4. A radiant panel comprising a panel body, a plurality of heat sinks arranged in parallel on the panel body at intervals, a pipe through which a heat transfer fluid passes, and a crossbar fixed to the panel body so as to traverse the plurality of heat sinks, The heat sink comprises a strip-shaped substrate, a single mounting portion provided in the center of the substrate in the width direction so as to extend along the longitudinal direction and to which the pipe is attached, and a pair of upright members provided on both sides of the mounting portion on the substrate in the width direction. The pair of upright members stand upright in a direction perpendicular to the substrate and extend above the upper end of the pipe attached to the mounting portion. The lower edge of the crossbar member is formed in a straight line along the transverse direction of the heat sink and is a radiating panel that abuts against the upper ends of the pair of upright members.

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