JP7096595B2 - Floor heating panel - Google Patents

Description

The present invention relates to a floor heating panel and a method for installing the floor heating panel.

Conventionally, as a method of installing a floor heating panel in an existing house, a method of peeling off an existing flooring or tatami mat, installing a floor heating panel, and reattaching the flooring or tatami mat is generally performed.

However, this method requires that everything on the flooring or tatami mats, such as furniture, be moved out of the way. Also, in recent years, the number of houses without tatami mats and only flooring is increasing. Compared to tatami mats, flooring requires more time to peel off and is difficult to reuse. In addition, especially when the floor heating panel is installed in a house with a short age, a relatively new flooring will be replaced, and the flooring may be wasted.

On the other hand, a method of installing a floor heating panel from under the floor has been studied (see, for example, Patent Document 1). According to this method, it is possible to eliminate the need to remove the existing flooring.

Japanese Unexamined Patent Publication No. 2002-257363

However, since the floor material of a house is a part that receives a load such as a person or furniture, there is a limit to reducing the thickness of the floor material. Therefore, when the floor heating panel is installed from under the floor, the heat generated by the floor heating panel is radiated through the thick floor material, so that the heating performance is lowered. Therefore, the method of installing the floor heating panel from under the floor is not widely used in reality.

An object of the present invention is to provide a floor heating panel capable of further improving the heating performance and an installation method thereof in order to improve the above-mentioned problems.

In order to achieve the above object, the floor heating panel according to one aspect of the present invention is
With the base material
A pipe attached to the substrate and forming a single flow path through which the heat medium flows,
Is a floor heating panel with
The pipe has a first meandering portion and a second meandering portion which alternately have straight portions and curved portions.
The curved portion of the first meandering portion and the curved portion of the second meandering portion are arranged so that a part of them overlap each other in a plan view.
The straight portion of the first meandering portion and the straight portion of the second meandering portion are arranged so as to be offset from each other in a plan view.

Further, in order to achieve the above object, the method of installing the floor heating panel according to one aspect of the present invention is:
The process of attaching the base material to the floor material from below,
The process of attaching a pipe that forms one flow path through which the heat medium flows to the base material,
Including
The pipe has a first meandering portion and a second meandering portion which alternately have straight portions and curved portions.
The curved portion of the first meandering portion and the curved portion of the second meandering portion are arranged so that a part of them overlap each other in a plan view.
The straight portion of the first meandering portion and the straight portion of the second meandering portion are arranged so as to be offset from each other in a plan view.

According to the floor heating panel and the installation method thereof according to one aspect of the present invention, the heating performance can be improved.

It is a top view which shows the schematic structure of the floor heating panel which concerns on embodiment of this invention. It is a cross-sectional view taken along the line A1-A1 of FIG. It is a top view which shows the positional relationship between the closed area, the 1st open area and the 2nd open area in the floor heating panel of FIG. It is a partially enlarged perspective view of the floor heating panel of FIG. It is a top view which shows the 1st modification of the floor heating panel of FIG. It is a top view which shows the 2nd modification of the floor heating panel of FIG. 6 is a cross-sectional view taken along the line A2-A2 of FIG. It is a top view which shows the 3rd modification of the floor heating panel of FIG. FIG. 8 is a sectional view taken along line A3-A3 of FIG. It is a top view which shows the 4th modification of the floor heating panel of FIG.

According to the first aspect of the present invention, the substrate and
A pipe attached to the substrate and forming a flow path through which a heat medium flows,
Is a floor heating panel with
The pipe has a first meandering portion and a second meandering portion which alternately have straight portions and curved portions.
The curved portion of the first meandering portion and the curved portion of the second meandering portion are arranged so that a part of them overlap each other in a plan view.
A floor heating panel is provided in which the straight portion of the first meandering portion and the straight portion of the second meandering portion are arranged so as to be offset from each other in a plan view.

According to the second aspect of the present invention, according to the first aspect or the second aspect, the minimum distance between the straight portion of the first meandering portion and the straight portion of the second meandering portion is equal to or less than the minimum bending radius of the pipe. The floor heating panel described is provided.

According to the third aspect of the present invention, the floor heating panel according to the first or second aspect, wherein a radiation layer having a radiance higher than that of the base material is provided on the outer surface of the base material. I will provide a.

According to the fourth aspect of the present invention, the base material provides the floor heating panel according to any one of the first to third aspects, which is a flexible sheet-like member.

According to the fifth aspect of the present invention, the pipe is in a plan view.
A closed region surrounded by a straight portion and a curved portion of the first meandering portion and a straight portion and a curved portion of the second meandering portion.
A region adjacent to the closed region and sandwiched between the straight portion of the first meandering portion and the straight portion of the second meandering portion, one end of which is the curved portion of the first meandering portion and the second meandering portion. A first open region where the other end is open while being blocked by the curved portion of the portion,
A region adjacent to the closed region and sandwiched between the straight portion of the first meandering portion and the straight portion of the second meandering portion, the other end of which is the curved portion of the first meandering portion and the second portion. A second open area where one end is open while being blocked by the curved part of the meandering part,
Provided to have
The fourth aspect is described in which the first open region and the second open region are provided so as to be alternately located via the closed region in a direction intersecting the straight portion of the first meandering portion. Provides floor heating panels.

According to the sixth aspect of the present invention, the floor heating panel according to any one of the first to fifth aspects, which has a cover member attached to the base material so as to cover at least a part of the pipe. offer.

According to one aspect of the invention
The process of attaching the base material to the floor material from below,
A step of attaching a pipe forming one flow path through which a heat medium flows to the base material,
Including
The pipe has a first meandering portion and a second meandering portion which alternately have straight portions and curved portions.
The curved portion of the first meandering portion and the curved portion of the second meandering portion are arranged so that a part of them overlap each other in a plan view.
Provided is a method of installing a floor heating panel in which the straight portion of the first meandering portion and the straight portion of the second meandering portion are arranged so as to be offset from each other in a plan view.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments.

(Embodiment)
FIG. 1 is a plan view showing a schematic configuration of a floor heating panel according to an embodiment of the present invention. FIG. 2 is a sectional view taken along line A1-A1 of FIG.

As shown in FIG. 1, the floor heating panel 1 according to the present embodiment has a heat radiating sheet 2 which is an example of a base material, a pipe 3, and a cover sheet 4 which is an example of a cover member.

The heat radiating sheet 2 is a sheet-like member having the flexibility of receiving heat from a heat medium such as hot water or hot air flowing inside the pipe 3 and radiating the heat to the outside. The outer shape of the heat radiating sheet 2 is, for example, a rectangle. The dimensions of the heat radiating sheet 2 are, for example, 800 mm × 800 mm. The heat radiating sheet 2 is made of a material having high thermal conductivity, for example, a metal such as aluminum.

As shown in FIG. 2, the outer surface 2a of the heat dissipation sheet 2 (the surface opposite to the surface on which the pipe 3 is arranged) is provided with a radiation layer 5 having an emissivity higher than that of the heat dissipation sheet 2. ing. In the present embodiment, the radiation layer 5 is composed of a black paint formed by baking coating or the like on the outer surface 2a of the heat radiation sheet 2 so that the emissivity of far infrared rays is higher than that of the heat radiation sheet 2. When the floor heating panel 1 is installed under the floor, the floor heating panel 1 is attached so that the radiation layer 5 comes into contact with the floor material.

The pipe 3 is arranged on the inner surface 2b of the heat dissipation sheet 2. Inside the pipe 3, one flow path through which a heat medium flows is formed. A heat medium inlet 3A to which a heat medium is supplied is formed at one end of the pipe 3. A heat medium outlet 3B for discharging the heat medium is formed at the other end of the pipe 3. In the present embodiment, the heat medium inlet 3A and the heat medium outlet 3B are arranged in the vicinity of the first corner portion 2A of the heat dissipation sheet 2.

The pipe 3 has a first meandering portion 31 and a second meandering portion 32. In the present embodiment, the first meandering portion 31 meanders from the first corner portion 2A of the heat dissipation sheet 2 to the second corner portion 2B located diagonally to the first corner portion 2A. It is the part that forms the "outward route" of. The second meandering portion 32 is a portion forming a “return path” meandering from the second corner portion 2B of the heat dissipation sheet 2 to the first corner portion 2A. In the present embodiment, the first meandering portion 31 and the second meandering portion 32 are connected to each other by a connection point (also referred to as a folding point) C1 located in the vicinity of the second corner portion 2B.

The first meandering portion 31 alternately has straight portions 31a and curved portions 31b. More specifically, the first meandering portion 31 includes a plurality of straight line portions 31a arranged in parallel with each other and a plurality of curved portions 31b connecting one end portions or the other end portions of the linear portions 31a adjacent to each other. It is equipped with. Here, the extending direction of the straight line portion 31a is referred to as the X direction. Further, the arrangement direction (direction intersecting the X direction) of the plurality of straight line portions 31a is referred to as the Y direction. Further, the thickness direction of the heat dissipation sheet 2 orthogonal to the X direction and the Y direction is referred to as the Z direction.

The second meandering portion 32 alternately has straight portions 32a and curved portions 32b. More specifically, the second meandering portion 32 includes a plurality of straight line portions 32a arranged in parallel with each other and a plurality of curved portions 32b connecting one end portions or the other end portions of the linear portions 32a adjacent to each other. It is equipped with.

The plurality of straight line portions 32a of the second meandering portion 32 are arranged in parallel in the Y direction. Further, the straight line portion 31a of the first meandering portion 31 and the straight line portion 32a of the second meandering portion 32 are arranged so as to be offset from each other in the Y direction in a plan view. That is, the straight line portion 31a of the first meandering portion 31 and the straight line portion 32a of the second meandering portion 32 are alternately arranged (except for a part) in the Y direction in a plan view.

The curved portion 31b of the first meandering portion 31 and the curved portion 32b of the second meandering portion 32 are portions bent in an arc shape, respectively. The bending radius R1 of the curved portions 31b and 32b is set to be equal to or larger than a predetermined minimum bending radius based on the material, diameter, and the like of the pipe 3. The pipe 3 is made of a relatively hard material so as not to be bent and damaged when an unintended external force is applied. In the present embodiment, the pipe 3 is a pipe made of a resin such as polyethylene or polybutene. The inner diameter of the pipe 3 is, for example, 7 mm. The outer diameter of the pipe 3 is, for example, 10 mm. The minimum bending radius of the pipe 3 (distance from the bending center to the center of the pipe) is, for example, 10 cm. The bending radius R1 of the curved portions 31b and 32b is 10 cm.

The straight line portion 31a of the first meandering portion 31 and the straight line portion 32a of the second meandering portion 32 are arranged so that the minimum distance P1 is equal to or less than the minimum bending radius of the pipe 3. In order to realize this arrangement, the curved portion 31b of the first meandering portion 31 and the curved portion 32b of the second meandering portion 32 are arranged so that a part of them overlap each other in a plan view. That is, as shown in FIG. 3, the curved portion 31b of the first meandering portion 31 and the curved portion 32b of the second meandering portion 32 are arranged so as to overlap each other in the Z direction.

Further, as shown in FIG. 4, the pipe 3 is arranged so as to have a closed region E1, a first open region E2, and a second open region E3 in a plan view. The “closed region E1” is a region shown by diagonal lines in FIG. 4, and is surrounded by a straight portion 31a and a curved portion 31b of the first meandering portion 31 and a straight portion 32a and a curved portion 32b of the second meandering portion 32. It is an area. The "first open region E2" is a region adjacent to the closed region E1 and sandwiched between the straight portion 31a of the first meandering portion 31 and the straight portion 32a of the second meandering portion 32, and one end thereof is the first. It is a region where the other end portion is open while being blocked by the curved portion 31b of the 1 meandering portion 31 and the curved portion 32b of the second meandering portion 32. The "second open region E3" is a region adjacent to the closed region E1 and sandwiched between the straight portion 31a of the first meandering portion 31 and the straight portion 32a of the second meandering portion 32, and the other end thereof is This is a region in which one end is open while being blocked by the curved portion 31b of the first meandering portion 31 and the curved portion 32b of the second meandering portion 32. The first open region E2 and the second open region E3 are provided so as to be alternately located in the Y direction via the closed region E1.

The cover sheet 4 is a sheet-like member that covers at least a part of the pipe 3. The thickness of the cover sheet 4 is set to be smaller than the diameter of the pipe 3. The outer shape of the cover sheet 4 is, for example, a rectangle. The dimensions of the cover sheet 4 are, for example, 800 mm × 650 mm. The cover sheet 4 is made of a material having high thermal conductivity, for example, aluminum.

In the present embodiment, the cover sheet 4 is provided so as to be in close contact with and cover the plurality of straight line portions 31a of the first meandering portion 31 and the plurality of straight line portions 32a of the second meandering portion 32. On the other hand, the cover sheet 4 is provided so as to expose the plurality of curved portions 31b of the first meandering portion 31 and the plurality of curved portions 32b of the second meandering portion 32. As a result, the curved portions 31b and 32b are not restricted from moving in the Y direction by the cover sheet 4, so that when the heat radiating sheet 2 and the cover sheet 4 are deformed (curved) so as to be rolled in the Y direction, the curved portions 31b and 32b are formed. Can be suppressed from inhibiting the deformation.

According to the floor heating panel 1 according to the present embodiment, the curved portion 31b of the first meandering portion 31 and the curved portion 32b of the second meandering portion 32 are arranged so that a part of them overlap each other in a plan view. There is. Further, the straight line portion 31a of the first meandering portion 31 and the straight line portion 32a of the second meandering portion 32 are arranged so as to be offset from each other in a plan view. As a result, the installation density of the pipe 3 can be improved (for example, about twice that of the conventional one), so that the heating performance can be further improved.

Since the underfloor of the house is a part that does not receive a load such as a person or furniture, the curved portion 31b of the first meandering portion 31 and the curved portion 32b of the second meandering portion 32 are arranged so as to overlap in the Z direction. However, an excessive load is not applied to the curved portions 31b and 32b. Further, since a space is usually provided under the floor of the house, the thickness of the floor heating panel 1 is obtained by overlapping the curved portion 31b of the first meandering portion 31 and the curved portion 32b of the second meandering portion 32 in the Z direction. Even when the thickness becomes thick, the influence on other members can be suppressed.

Further, according to the floor heating panel 1 according to the present embodiment, the minimum distance P1 between the straight portion 31a of the first meandering portion 31 and the straight portion 32a of the second meandering portion 32 is set to be equal to or less than the minimum bending radius of the pipe. There is. As a result, the installation density of the pipe 3 can be improved, so that the heating performance can be further improved.

Further, according to the floor heating panel 1 according to the present embodiment, the outer surface 2a of the heat radiation sheet 2 is provided with a radiation layer 5 having a radiation rate higher than that of the heat radiation sheet 2. As a result, the heat of the heat medium flowing inside the pipe 3 can be radiated to the space on the floor by the radiant effect, and the heating performance can be further improved.

Further, according to the floor heating panel 1 according to the present embodiment, since the heat radiating sheet 2 and the cover sheet 4 are sheet-like members having flexibility, they are rolled (curved) to reduce the width in a plan view. It can be made smaller. Thereby, for example, the floor heating panel 1 can be carried under the floor from the opening for the underfloor storage having a size of 600 mm × 600 mm, and the installation work can be facilitated.

Further, according to the floor heating panel 1 according to the present embodiment, the first open region E2 and the second open region E3 are provided so as to be alternately located in the Y direction via the closed region E1. Since the portion of the first open region E2 where the curved portion 31b and the curved portion 32b of the second open region E3 are not provided is easily deformed, the heat radiation sheet 2 and the cover sheet 4 are rolled (curved) to form a horizontal width in a plan view. Can be made even smaller. Thereby, for example, the floor heating panel 1 can be more easily carried under the floor from the opening for the underfloor storage having a size of 600 mm × 600 mm, and the installation work can be further facilitated.

The floor heating panel 1 can be installed under the floor as follows, for example.

First, remove the existing insulation below the flooring.
Next, the floor heating panel 1 is placed at a position where the existing heat insulating material is removed, with the radiation layer 5 facing up, and fixed to the floor material with a fastening member such as a screw.
Next, the floor heating panel 1 is covered with the removed heat insulating material from the cover sheet 4 side.

According to such an installation method, since the surface of the cover sheet 4 has irregularities depending on the thickness of the pipe 3, the contact area between the heat insulating material and the floor heating panel 1 becomes small, and a gap (air layer) between them becomes small. ) Will be formed. The gap functions as a heat insulating layer together with the heat insulating material, and the heat radiation to the lower side of the floor heating panel 1 is further suppressed. As a result, the heat radiation to the upper side of the floor heating panel 1 can be increased, and the heating performance can be further improved.

The floor heating panel 1 has a structure in which a pipe 3 is sandwiched between a heat radiating sheet 2 and a cover sheet 4. Therefore, the portion where the heat radiating sheet 2 and the cover sheet 4 are in contact with each other is thin because there is no heat insulating material or a member having rigidity. Therefore, when the portion is fixed to the floor material with a fastening member such as a screw, the fastening member may penetrate the portion. Therefore, as shown in FIG. 5, a plurality of plate members 6 may be provided in the portion of the heat radiating sheet 2 and the cover sheet 4 where the pipe 3 is not arranged. As a result, the floor heating panel 1 can be more stably fixed to the floor material with a fastening member such as a screw. The plate material 6 is preferably a lightweight and flexible member in order to facilitate the transportation of the floor heating panel 1. Examples of such a member include medium density fiberboard (MDF).

The present invention is not limited to the above embodiment, and can be carried out in various other embodiments. For example, in the above, the pipe 3 has a first meandering portion 31 and a second meandering portion 32, and the straight line portion 31a of the first meandering portion 31 and the straight line portion 32a of the second meandering portion 32 are displaced from each other in a plan view. However, the present invention is not limited to this. For example, the pipe 3 may have three or more meandering portions, and some of the curved portions thereof may be arranged so as to overlap each other in a plan view, and their straight portions may be arranged so as to be offset from each other in a plan view. According to this configuration, the installation density of the pipe 3 can be further improved, so that the heating performance can be further improved.

Further, in the above, the heat radiating sheet 2 having flexibility is used as an example of the base material, but the present invention is not limited to this. For example, a rigid member (for example, a wood material such as particle board or a metal plate) may be used as the base material. Even in this case, since the pipe 3 includes the first meandering portion 31 and the second meandering portion 32, the installation density of the pipe 3 can be improved, so that the heating performance can be further improved.

Further, in the above, the cover sheet 4 having flexibility is used as an example of the cover member, but the present invention is not limited to this. For example, a rigid member may be used as the cover member. Even in this case, since the pipe 3 includes the first meandering portion 31 and the second meandering portion 32, the installation density of the pipe 3 can be improved, so that the heating performance can be further improved.

Further, in the above description, the radiation layer 5 is provided on the outer surface 2a of the heat radiation sheet 2, but the present invention is not limited to this. The radiation layer 5 does not necessarily have to be provided. When the heat radiating sheet 2 is a metal sheet, it is difficult to fix the paint on the metal sheet. Therefore, it is preferable that the black paint constituting the radiation layer 5 is mixed with the resin. Thereby, even when the heat radiating sheet 2 is a metal sheet, it is possible to easily fix the black paint on the metal sheet. In this case, the heat transfer performance is deteriorated because the resin has a heat insulating effect, but since the radiant layer 5 is for radiating heat to the space on the floor by the radiant effect, the influence on the improvement of the heating performance is exerted. Few. Further, if the heat transfer performance of the floor heating panel 1 is excessively high and the temperature difference between the front surface and the back surface of the floor material becomes large, the floor material may warp and the fixing member may come off. As described above, by mixing the resin with the black paint, it is possible to prevent the heat transfer performance of the floor heating panel 1 from becoming excessively high.

Further, in the above, the pipe 3 is arranged on the flat inner surface 2b of the heat radiating sheet 2, and the cover sheet 4 is arranged so as to cover the entire straight portion 31a and the straight portion 32a of the pipe 3. Not limited to. For example, as shown in FIGS. 6 and 7, a groove 21 for accommodating the pipe 3 is provided on the inner surface 102b of the heat dissipation sheet 102, and a plurality of cover sheets 104 are attached so that the pipe 3 does not come out from the groove 21. You may. In this case, the groove 21 is provided so as to be recessed from the inner surface 102b side of the heat radiating sheet 102 toward the outer surface 102a. The shape of the groove 21 substantially matches the shape of the first meandering portion 31 and the second meandering portion 32 of the pipe 3 in a plan view. The cover sheet 104 is, for example, an adhesive tape. The cover sheet 104 is attached to the heat radiating sheet 102 so as to cover the straight portion 31a of the first meandering portion 31 or the straight portion 32a of the second meandering portion 32 in the pipe 3 arranged in the groove 21. According to this configuration, the size of the cover sheet 104 can be reduced, and the manufacturing cost can be reduced.

In FIG. 6, the cover sheet 104 is attached to the heat radiating sheet 102 so as to cover the entire length of the straight portion 31a or the straight portion 32a, but the present invention is not limited to this. The floor heating panel according to the present invention is installed under the floor, and it is not usually assumed that an external force is applied to the floor heating panel after installation. Therefore, the cover sheet 104 may prevent the pipe 3 from coming out of the groove 21 of the heat dissipation sheet 2. For example, the cover sheet 104 may be attached to the heat radiating sheet 102 so as to cover a part or a plurality of places of the straight line portion 31a or the straight line portion 32a. According to this configuration, the size of the cover sheet 104 can be further reduced, and the manufacturing cost can be further reduced.

Further, the pipe 3 may be held by the heat radiating sheets 2, 102 without using the cover sheets 4, 104. For example, as shown in FIGS. 8 and 9, on the side surface near the opening of the groove 21, a plurality of pairs of protrusions 21a are provided at intervals in the X direction, and the pipe 3 is a heat dissipation sheet at the plurality of pairs of protrusions 21a. It may be configured so as to prevent it from coming out of the groove 21 of 2. In this case, the gap between the pair of protrusions 21a may be narrower than the diameter of the pipe 3. By pushing the pipe 3 into the groove 21 through the gap between the pair of protrusions 21a, the pipe 3 is held in the groove 21. According to this configuration, the cover sheet can be eliminated, so that the number of components of the floor heating panel can be reduced. The protrusions 21a do not need to be arranged in pairs, and may be provided, for example, on only one side surface of the groove 21.

Further, for example, the pipe 3 may be attached to the groove 21 of the heat dissipation sheet 102 with an adhesive.

Further, for example, as shown in FIG. 10, a plurality of notches 22 are provided in the heat radiating sheet 2 so as to intersect the straight line portion 31a and the straight line portion 31a, and the heat radiating sheet 2 is sewn through the plurality of notches 22. The pipe 3 may be attached. According to this configuration, the cover sheet can be eliminated, so that the number of components of the floor heating panel can be reduced.

Further, in the above description, the method of installing the assembled floor heating panel 1 under the floor has been described, but the present invention is not limited to this. For example, the floor heating panel 1 may be installed while assembling under the floor as shown below.

First, remove the existing insulation below the flooring.
Next, the heat radiating sheet 2 is arranged at the position where the existing heat insulating material is removed, and the heat radiating sheet 2 is attached to the floor material from below with a fastening member such as a screw.
Next, the pipe 3 is arranged on the heat dissipation sheet 2 so as to have the first meandering portion 31 and the second meandering portion 32.
Next, the cover sheet 4 is placed so as to cover at least a part of the pipe 3. If the cover sheet 4 is not provided, this step is omitted.
Next, the floor heating panel 1 is covered with the removed heat insulating material.

Before attaching the heat radiating sheet 2 to the floor material from below, the pipe 3 may be attached to the heat radiating sheet 2 in advance.

Although the present invention has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various modifications and modifications are obvious to those skilled in the art. It should be understood that such modifications and modifications are included within the scope of the invention as long as it does not deviate from the scope of the invention according to the appended claims.

According to the floor heating panel according to the present invention, the heating performance can be further improved, which is particularly useful as a floor heating panel installed under the floor.

1: Floor heating panel, 2,102: Radiation sheet (base material), 2A: First corner, 2B: Second corner, 2a, 102a: Outer surface, 2b, 102b: Inner surface, 3: Pipe, 3A: Heat Medium inlet, 3B: Thermal medium outlet, 4,104: Cover sheet (cover member), 5: Radiant layer, 6: Plate material, 21: Groove, 21a: Protrusion, 22: Notch, 31: First meandering part, 31a : Straight part, 31b: Curved part, 32: Second meandering part, 32a: Straight part, 32b: Curved part, C1: Connection point (folding point), E1: Closed area, E2: First open area, E3: First 2 open area, P1: minimum interval, R1: bending radius

Claims (8)

With the base material
A pipe attached to the substrate and forming a flow path through which a heat medium flows,
Is a floor heating panel with
The pipe has a first meandering portion and a second meandering portion, which are provided with linear portions and curved portions alternately.
The curved portion of the first meandering portion and the curved portion of the second meandering portion are arranged so that a part of them overlap each other in a plan view.
The straight portion of the first meandering portion and the straight portion of the second meandering portion are arranged so as to be offset from each other in a plan view .
The base material is a sheet-like member having thermal conductivity and flexibility.
Floor heating panel. The floor heating panel according to claim 1 , wherein the base material is a metal sheet . According to claim 1 or 2, a radiation layer having a radiance higher than that of the base material is provided on the outer surface of the base material, which is a surface opposite to the surface on which the pipe is arranged . The floor heating panel described. The floor heating panel according to claim 3 , wherein the radiant layer is made of a black paint mixed with a resin . It has a flexible sheet-like cover member attached to the substrate so as to cover at least a part of the pipe .
The floor heating panel according to any one of claims 1 to 4 , wherein the thickness of the cover member is set to be smaller than the diameter of the pipe . The cover member closely covers the straight portion of the first meandering portion and the straight portion of the second meandering portion, while the curved portion of the first meandering portion and the curved portion of the second meandering portion are covered with each other. The floor heating panel according to claim 5, which is attached to the substrate so as to be exposed . According to claim 5 or 6, a plurality of plate members are provided on the outer surface of the cover member, which is a surface opposite to the surface in contact with the base material, at a position deviated from the pipe in a plan view. The floor heating panel described. The substrate has multiple notches and is
The floor heating panel according to any one of claims 1 to 5, wherein the pipe is attached so as to sew the base material through the plurality of notches.

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