JP2925473B2 - Thermal storage radiant panel to prevent cold draft - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiant panel for preventing a cold draft in a perimeter zone of a building, and more particularly to an improvement in a radiant panel of a type in which heat generated by an electric heater is stored and used in a latent heat storage material. About.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. Hei 6-18052 discloses a conventional typical structure of a heat storage type radiant panel for preventing cold draft. In this prior art, a latent heat storage material is loaded into a number of recesses on one surface of a corrugated base panel, a thin plate-shaped electric heater is attached to the surface side of the latent heat storage material, and the surface of the radiation panel is covered with the electric heater. Has formed. This regenerative radiation panel is installed, for example, along the inner surface of the wall below the window opening. At that time, the back surface (the side without the latent heat storage material) of the corrugated sheet base panel is opposed to the wall surface, and the surface of the electric heater is directed toward the room. When the electric heater is energized, the heat is released directly into the room, and the latent heat storage material absorbs the heat. When the electric heater is not energized, the heat is gradually released from the latent heat storage material into the room. These heat radiations prevent cold draft in the perimeter zone.

Japanese Patent Application Laid-Open No. 6-241481 discloses a heat storage panel for heating having a similar configuration. In this prior art, a heat insulating material is provided on the floor of a building, a latent heat storage material is provided thereon, a thin electric heater is provided thereon, and the whole is covered with a mortar layer. Here, the mortar layer covering the whole forms the surface of the heat storage panel, and heat generated from the electric heater and heat from the latent heat storage material are released into the room through the mortar layer.

[0004]

Both of the above two prior arts are based on the idea that a large amount of heat is stored in a latent heat storage material using inexpensive midnight power, and that heat is used in the daytime. It is in. By the way, in the case of a general office building or the like, it is unoccupied at midnight and is not used, and the utilization time period is exclusively in the daytime. In this case, in the operation mode in which heat is stored in the latent heat storage material with inexpensive midnight power, it is better to minimize the heat radiation from the electric heater to the indoor space and to avoid waste of energy.

[0005] When the above two prior arts are evaluated from this point of view, in both cases, the electric heater is located at the near side when viewed from the indoor side, and the latent heat storage material is located behind the electric heater. Therefore, a considerable part of the heat generated from the electric heater is discharged to the room directly or via the mortar layer. In particular, in the former regenerative radiant panel for the purpose of preventing cold draft, much of the heat generated by the electric heater escapes to the indoor space even in the middle of the night when there are no people in the room, resulting in extremely large energy loss.

The present invention has been made in view of the above-mentioned conventional problems, and has as its object to unnecessarily discharge heat from an electric heater into a room in an operation mode in which latent heat storage material absorbs heat solely by the electric heater. An object of the present invention is to provide an energy-efficient regenerative radiant panel for preventing cold draft, which is prevented from being performed.

[0007]

A heat storage radiant panel for preventing cold draft according to the present invention includes a heat insulating panel formed of a heat insulating material, an electric heater thinly and widely disposed on one side of the heat insulating panel, and an electric heater. A heat dissipation concrete panel disposed at an appropriate distance from one side of the heat insulating panel on which the heater is disposed, and a latent heat storage material loaded in a space between the concrete panel and the electric heater And the whole forms an integral panel structure. Note that the material of the concrete panel for heat dissipation includes mortar.

[0008] The regenerative radiation panel is installed, for example, along the inner surface of the wall below the window opening. At that time, the side of the heat insulating panel is opposed to a wall surface, and the surface of the concrete panel for heat radiation is directed toward the room. The electric heater is disposed between the heat insulating panel on the rear surface and the latent heat storage material on the front surface, and further includes a concrete panel for heat radiation in front of the heat storage material. Therefore, when electricity is supplied to the electric heater, the amount of the heat that is released directly into the room is extremely small, and much heat is absorbed by the latent heat storage material. Heat is released.

[0009]

1 and 2 show the structure of a heat storage radiant panel for preventing cold draft and its installed state according to an embodiment of the present invention. The wide back of this radiant panel consists of a heat insulating panel 1 made of hard urethane,
A sheet-like electric heater 2 is attached to one side (the right side in the figure) of the heat insulating panel 1. The concrete panel 3 for heat radiation is a PC panel, and is in the form of a shallow box-shaped container with four sides slightly rising up in a wall shape. The concave side of the concrete panel 3 is joined to and integrated with one side of the heat insulating panel 1 provided with the electric heater 2, but the concave surface of the panel 3 allows the thin main surface 3 a of the panel 3 and the heat insulating panel 1 to be interposed. A space is formed. The latent heat storage material 4 is loaded in the space. The latent heat storage material 4 is sandwiched between the heat insulating panel 1 and the concrete panel 3, and one side is in contact with the electric heater 2, and the other side is the panel main surface 3.
a is in contact with the inner surface. These are joined together by, for example, appropriate fasteners to form an integral panel structure. Further, a sub heat insulation panel 5 also made of hard urethane is applied to and joined to the narrow bottom surface of the integrated heat storage type radiation panel, and the heat insulation type radiation panel is also integrated.

The heat storage radiant panel 100 for preventing cold draft shown in FIG. 2 is configured as described above. The building in Fig. 2 is a steel concrete structure, 6 is a girder,
7 is a small beam, 8 is a concrete floor, 9 is a curtain wall, 10 is a window glass, 11 is a window sill also serving as a duct decorative panel, 12 is an air conditioning duct hidden under the window sill 11, and 13 is a window sill 11 It is the lower wall of the lower window.

In this embodiment, as shown in detail in FIG. 1, a regenerative radiant panel 100 is mounted via a suitable bracket 14 or the like so as to be applied to a window lower wall portion 13. Of course, the side of the heat insulating panel 1 faces the window lower wall portion 13 and the surface of the heat dissipation concrete panel 3 faces the room. A perimeter cover 15 made of punched metal or the like is attached to the front of the main panel 100 to hide the main panel 100.

As described above, the electric heater 2 is disposed between the heat insulating panel 1 on the rear side and the latent heat storage material 4 on the front side, and the heat dissipation concrete panel 3 is located in front of the heat storage material 4. Therefore, when the electric heater 2 is energized, the amount of the heat that is released directly into the room is extremely small, and a large amount of heat is absorbed by the latent heat storage material 4. Heat is gradually released into the room through the surface 3a.

[0013]

When the heat storage radiant panel for preventing cold draft according to the present invention is installed in the perimeter zone as intended, when viewed from the room side, there is a concrete panel for heat dissipation in front of the panel, and the latent heat panel is located immediately inside. There is a heat storage material, the electric heater is located on the back, and the back is composed of heat insulating panels. Therefore, when the electric heater is energized, the amount of the heat that is released directly into the room is extremely small, and much heat is absorbed by the latent heat storage material,
When the electricity is not supplied, heat is gradually released from the latent heat storage material into the room through the concrete panel. Therefore, in the operation mode in which the latent heat storage material exclusively absorbs the heat by the electric heater using the inexpensive midnight power, the heat from the electric heater is not unnecessarily released into the room, thereby reducing energy waste.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an internal structure of a heat storage radiant panel for preventing cold draft according to an embodiment of the present invention.

FIG. 2 is a schematic view showing an installed state of the thermal storage type radiation panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulation panel 2 Electric heater 3 Heat dissipation concrete panel 3a Main surface 4 Latent heat storage material 5 Sub-insulation panel 6 Large beam 7 Small beam 8 Concrete floor 9 Curtain wall 10 Window glass 11 Window stand also serving as duct decorative board 12 Window stand 11 Air conditioning duct hidden underneath 13 Window lower wall under window sill 11 Bracket 15 Perimeter cover

Continuation of the front page (72) Inventor Tsutomu Ninomiya 2-3-3 Kandaji-cho, Chiyoda-ku, Tokyo Obayashi Corporation Tokyo Head Office (56) References JP-A-6-18052 (JP, A) JP-A-6-241481 (JP, A) JP-A-3-20536 (JP, A) JP-A-6-69613 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F24D 11/00 F24D 13 / 02 F24H 7/06 F28D 20/02

Claims (1)

(57) [Claims] 1. A heat insulating panel formed of a heat insulating material, an electric heater thinly and widely disposed on one side of the heat insulating panel,
A heat dissipation concrete panel disposed at an appropriate distance from one side of the heat insulation panel on which the electric heater is disposed; and a latent heat loaded in a space between the concrete panel and the electric heater. A heat storage radiant panel for preventing cold draft, comprising: a heat storage material; and an entire panel structure.