JPH1144429A - Heating panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the heating efficiency by laminating a heating body and a regenerative body in this order downwardly from a back side of a ceiling plate in a box formed of an excellent heat transfer plate provided with at least a top plate and side plates, and approximately agreeing an upper surface of the side plate of the box with a side surface of a joist, and fixing them to each other. SOLUTION: A plate forming a box 1 is rigid like a steel plate, and the box comprises a top plate 1a, a bottom plate 1b of the same shape which is arranged parallel to the top plate, and each side plate 1c to connect therebetween by a long side part on each side. In the box 1, one side plate 1c is flush with and fixed to the side surface of a joist 4 of a crossbar to support a floor member 6, and the top plate 1a is flush with and fixed to an upper surface of the joist 4. A flat heating body of low profile using a heating wire, etc., and a regenerative material 3 are inserted in the box 1, an upper surface of the heater 2 is laminated with the heater upside so as to be brought into contact with a back side of the top plate 1a, and loaded on the bottom plate 1b. Because the box 1 is installed by stretching the fixed joist 4, no clearance is generated between the top plate 1a and the floor member 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating panel which is embedded under a floor of a house or the like to perform floor heating.

[0002]

2. Description of the Related Art A heating panel is such that a heating element such as a heater is embedded under a floor material to heat the room from under the floor. Some of the heating panels use a heat storage material that accumulates heat by using inexpensive power at midnight.

A configuration of a conventional heating panel using the midnight power will be described with reference to FIG. The heating panel includes a first heat storage material 3, a heater 2, a second heat storage material 3, and an inner surface of a housing 1 made of an iron plate having good thermal conductivity, in order from the back surface of the top plate 1 a. The heat insulating material 7 is laminated. Therefore, the heat generated from the heater 2 is temporarily stored in the upper and lower heat storage materials 3, and the heat is gradually released from these heat storage materials 3. In addition, since the heat from the heat storage material 3 is shielded below by the heat insulating material 7, the heat is mainly released only upward through the top plate 1a having good heat conductivity.

[0006] As shown in FIG. 6, the heating panel is provided on a slab 5 (concrete under the floor) by fitting the housing 1 into a space between a plurality of joists 4 laid under the floor material 6. Placed on Then, the heater 2 is energized at midnight, and the heat generated from the heater 2 is temporarily stored in the upper and lower heat storage materials 3, and the heat from these heat storage materials 3 is gradually transmitted to the floor material 6 throughout the day, thereby reducing the cost Floor heating can be performed using the electricity rate.

[0005]

However, since the above-mentioned conventional heating panel is mounted on the slab 5, if the slab 5 has a recess 5a or the like as shown in FIG. There is a problem that a large gap is opened between the top plate 1a of the housing 1 and the floor material 6 and the heat conductivity is deteriorated to deteriorate the heating efficiency. Further, in this conventional heating panel, since the heat storage material 3 sandwiches the upper and lower portions of the heater 2 with each other, the heat storage effect is enhanced. There is also a problem that it takes a long time for the effect to appear.

[0006] The present invention has been made in view of the above circumstances, while making the top plate as close as possible to the floor material,
It is an object of the present invention to provide a heating panel that has high heating efficiency and enables rapid heating by arranging a heating element directly under the top plate without using a heat storage material.

[0007]

That is, in order to solve the above-mentioned problems, a heating panel according to the present invention is provided with a ceiling panel inside a housing made of a good heat conductive plate material having at least a top plate and side plates. The heating element and the heat storage material are laminated in order from the back surface of the plate to the bottom, and the side plate of the housing is fixed to the side surface of the joist with the upper surface substantially coincident.

According to the means, the side plate of the housing is fixed to the side surface of the joist, and the top plate and the upper surface of the joist are almost flush. Almost no gap is left. Therefore, heat transmitted through the top plate of the housing can be efficiently transmitted to the floor material, so that the heating efficiency can be improved. In addition, immediately below the top plate of the housing, the heating element is arranged without the intervention of the heat storage material, so the heat from this heating element is directly transmitted to the floor material only through the top plate having good thermal conductivity, The heating effect can be made to appear in a short time.

Further, the above-mentioned housing has a rectangular top plate, a bottom plate of the same shape arranged in parallel below the top plate, and a long side portion between both sides of the top plate and the bottom plate. It is characterized by comprising both side plates to be connected.

According to the means, the housing is a frame having an opening only on the short side, so that the heating element and the heat storage material can be inserted and held securely inside.

Further, a heat insulating material is further arranged below the heating element and the heat storage material laminated inside the casing.

According to the means, since the heat insulating material is disposed below the heat storage material, it is possible to prevent the heat from the heat storage material from escaping downward and to lower the heating efficiency.

Further, another heating element is arranged below the heating element and the heat storage material laminated inside the above-mentioned housings.

According to the means, the first heating element is disposed immediately below the top plate of the housing, so that the quick heating effect can be enhanced, and the second heating element can be provided below the heat storage material. Are arranged, the heat storage effect on the heat storage material can be increased.

Further, a heat reflecting material is disposed between the heating element laminated inside the above-mentioned housing and the back surface of the top plate above the heating element.

According to the means, since the heat from the heating element immediately below the top plate is reflected to some extent downward by the heat reflecting material, the rapid effect of heating is somewhat impaired, but the heat storing effect on the heat storing material is increased. Can be done.

Further, the heating panel according to the present invention comprises:
A heat storage material and a heating element are sequentially stacked downward from the back surface of the top plate inside a housing made of a good heat conductive plate material having a top plate, a bottom plate, and a side plate connecting them, and The side plate of the housing is fixed to the side surface of the joist so that the upper surface thereof is substantially aligned.

According to the means, the side plate of the housing is fixed to the side surface of the joist and the top plate and the upper surface of the joist are substantially flush. Almost no gap is left. Therefore, heat from the heating element and the heat storage material can be efficiently transmitted to the floor material via the top plate of the housing, so that the heating efficiency can be improved. In addition, a heat storage material is disposed above the heating element as in the past, and the slab located below the heating element via the bottom plate has a certain heat storage effect when the heating panel is installed. It can also be increased.
In addition, the heat from the heating element is stored in these heat storage materials and slabs, and also directly heats the bottom plate of the housing. Can be improved to some extent.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a first embodiment of the present invention. FIG. 1 is a perspective view showing a configuration of a heating panel, and FIG. 2 shows a state where the heating panel is installed under a floor. FIG. 3 is a perspective view showing a configuration of a heating panel in which a heat insulating material is arranged in the lowermost layer. FIG.
7 having the same functions as those of the conventional example shown in FIG.

The heating panel of this embodiment is shown in FIG.
As shown in FIG. 1, a housing 1 in which a plate material is formed in a frame shape is used. As a plate material forming the housing 1, a material having good thermal conductivity and a certain degree of rigidity, such as an iron plate, is used. When a metal plate such as an iron plate is used, it is preferable to perform a rust prevention treatment such as plating the surface or forming an oxide film. This plate material is subjected to bending or welding to form a rectangular top plate 1a, a bottom plate 1b of the same shape arranged in parallel below the top plate 1a, and a top plate 1a.
And a bottom plate 1b are formed in a housing 1 composed of both side plates 1c connecting the long sides of both sides.

In the case 1, one side plate 1c is fixed to the side surface of the joist 4 with a wood screw. At this time, the housing 1 is
The top plate 1a and the joist 4 are fixed so that the top surfaces thereof are flush with each other. Since the joist 4 is a crosspiece passed under the floor to support the floor material, it is optimal to use a wood screw to fix the housing 1 made of a metal plate or the like, but other fixing means may be used. If possible, this is not necessarily the case.

A heater 2 and a heat storage material 3 are inserted into the housing 1. Since the heater 2 has no space for accommodating a very thick heater, it is preferable to use a thin planar heating element. Examples of such a planar heating element include a sheet in which a heater wire is meandered between heat-resistant sheet materials and a sheet material, and a sheet of a PTC heating element (positive temperature coefficient heating element) formed of a heat-resistant sheet. There are those formed between materials and plate materials. When a normal heater wire is used, temperature control by a closed loop is necessary. When a PTC heating element is used, temperature control by an open loop is possible. Further, instead of the heater 2 generating heat by the electric heating action, another heating element using induction heating or the like can be used. The heat storage material 3 only needs to temporarily accumulate the heat generated by the heater 2 and gradually release the heat. Therefore, the heat storage material 3 may simply have a large heat capacity. Since it is preferable to use a material that can accumulate heat, a paraffin-based material that accumulates heat using heat of fusion is used here. The heater 2 and the heat storage material 3 are stacked with the heater 2 facing upward, and mounted on the bottom plate 1 b in the housing 1. At this time, the dimensions of each member of the heater 2 are determined such that the upper surface is in contact with the back surface of the top plate 1a. Therefore, the heat generated from the heater 2 is stored in the lower heat storage material 3 and is directly discharged upward through the top plate 1a having good heat conductivity.

The heater 2 and the heat storage material 3 can be easily inserted from the opening on the short side of the housing 1. And
The inserted heater 2 and heat storage material 3 are securely held by the bottom plate 1b of the housing 1 and the side plates 1c on both sides. In addition, this housing | casing 1 can also be made into the box shape which also covered the opening part of the short side with the board | plate material. The housing 1 has at least a top plate 1a.
The bottom plate 1b and the other side plate 1c are not necessarily required as long as the heater 2 and the heat storage material 3 can be held by some means. These heaters 2
The housing 1 in which the heat storage material 3 is inserted and the top plate 1 is fixedly supported on one side surface by the joist 4 due to the rigidity of the plate material.
a can be kept substantially horizontal.

As shown in FIG. 2, the heating panel having the above structure is installed by passing a joist 4 to which the housing 1 is fixed above a slab 5 under the floor. Therefore, the heating panel is composed of the housing 1 containing the heater 2 and the heat storage material 3.
Is constructed together with the joists 4, so that the labor of the construction can be reduced. A floor material 6 is mounted on the joist 4. Since the top plate 1a of the housing 1 is flush with the joist 4 and the upper surface, there is almost no gap between the top plate 1a and the floor material 6.

The heating panel energizes the heater 2 at midnight, transfers the heat generated from the heater 2 to the floor material 6 via the top plate 1a, and temporarily stores the heat in the heat storage material 3 below. By gradually transmitting the heat from the heat storage material 3 to the floor material 6 throughout the day, it is possible to perform floor heating using a low power rate. Moreover, since there is almost no gap between the top plate 1a of the housing 1 and the floor material 6, FIG.
As shown in the above, even when the slab 5 has the concave portion 5a or the like, the heat from the heater 2 and the heat storage material 3 is directly transmitted to the floor material 6 without being interrupted by the air layer having high heat insulation, and the heating efficiency is improved. Can be enhanced.

The heating panel is provided in the housing 1
Since the heater 2 is disposed immediately below the top plate 1a, the heat of the heater 2 is directly transmitted to the flooring 6 via the top plate 1a having good heat conductivity. Conventionally, the heat of the heater 2 is first absorbed by the heat storage materials 3 arranged above and below, and after these heat storage materials 3 absorb latent heat, the temperature further rises and then the floor material 6 is indirectly warmed. Therefore, even when the heater 2 was energized, the heating effect could not be obtained immediately. However, according to the heating panel of the present embodiment, a heating effect can be obtained immediately by energizing the heater 2, so that the floor temperature is particularly lowered or the room needs to be specially heated. In such a case, it is possible to respond quickly. However, since the heat storage material 3 is not arranged on the heater 2, even at the time of energization at midnight, heat escapes upward and the heat storage effect is somewhat impaired. However, if the space under the floor is the same as that of the related art, the volume of the heat storage material 3 below the heater 2 can be increased to the same level as that of the related art, so that the decrease in the heat storage effect can be suppressed to some extent.

In the above-described embodiment, only the heat storage material 3 is disposed below the heater 2. However, as shown in FIG. 3, in order to prevent the heat from the heat storage material 3 from escaping downward, the heat storage material 3 is further provided. The heat insulating material 7 may be arranged on the lower side. As the heat insulating material 7, it is optimal to use urethane foam or glass wool containing a large amount of air having low thermal conductivity.

Further, in the above embodiment, the heater 2 is arranged only on the heat storage material 3, but another heater 2 can be stacked under the heat storage material 3. In the above embodiment, since the heat storage material 3 is heated only from above, the heat storage effect is somewhat impaired. However, if another heater 2 is disposed below as described above, the heat storage effect of the heat storage material 3 is enhanced, and Electricity can be effectively used. Moreover, in this case, if the heaters 2 arranged above and below the heat storage material 3 have a heater capacity half that of the heater 2 used in the above-described embodiment, the power consumption does not increase. However, the immediate effect of heating is slightly lower than in the case of the above embodiment.

Further, in the above embodiment, the heater 2 is disposed immediately below the top plate 1a of the housing 1, but a heat reflecting material may be disposed between the top plate 1a and the heater 2. The heat reflecting material is made by coating a resin sheet or the like with aluminum coating or the like so as to reflect radiant heat (radiant heat), and has little heat insulating effect. Heat conduction can be suppressed.
When this heat reflecting material is arranged, the heat from the heater 2 is reflected downward to some extent, so that the rapid effect of heating is somewhat impaired, but the heat storing effect on the heat storage material 3 can be increased. These two layers of heaters 2 and heat reflecting materials disposed above and below the heat insulating material 7 and the heat storage material 3 can be used in an appropriate combination.

FIG. 4 shows a second embodiment of the present invention and is a perspective view showing a state where a heating panel is installed under a floor. Note that the same reference numerals are given to constituent members having the same functions as those of the first embodiment shown in FIGS. 1 to 3.

The heating panel of this embodiment is shown in FIG.
As shown in (1), the point that one side plate 1c of the housing 1 is fixed to the side surface of the joist 4 so that the top plate 1a and the upper surface of the joist 4 are flush with each other is the same as in the first embodiment. However, this housing 1 has at least a top plate 1a and one side plate 1c,
It is necessary to always have the bottom plate 1b. In addition, a heat storage material 3 and a heater 2 having the same configuration as in the first embodiment are inserted into the inside of the housing 1. However, in the heating panel of this embodiment, the heat storage material 3 is placed on the heater 2. The heaters 2 are stacked, and the heater 2 is placed on the bottom plate 1b. Therefore, the heat generated from the heater 2 is stored in the upper heat storage material 3 and directly heats the bottom plate 1b having good heat conductivity.

The heating panel having the above structure is installed by passing a joist 4 to which the housing 1 is fixed above the slab 5 under the floor. Therefore, similarly to the first embodiment, the heating panel according to the present embodiment can also reduce the labor for construction. Further, since the floor material 6 is mounted on the joist 4, there is almost no gap between the top plate 1 a of the housing 1 and the floor material 6.

The heating panel energizes the heater 2 at midnight and temporarily stores heat generated from the heater 2 in the upper heat storage material 3. Further, since the slab 5 is made of concrete having a large heat capacity and has a certain heat storage effect, the heat of the heater 2 is also stored in the slab 5 via the bottom plate 1 b of the housing 1. Then, the heat released from the heat storage material 3 and the slab 5 is gradually transmitted to the floor material 6 throughout the day, so that floor heating can be performed using a low power rate. Moreover, since there is almost no gap between the top plate 1a of the housing 1 and the floor material 6, the heating efficiency can be increased.

Further, in the heating panel, since the heater 2 is disposed immediately above the bottom plate 1b of the housing 1,
The heat of the heater 2 is transferred from the bottom plate 1 b having good heat conductivity to the side plate 1.
c and the floor material 6 via the top plate 1a. Therefore, when the heater 2 is energized, the heat is quickly transmitted to the floor material 6 and the heating effect can be obtained quickly, though not so much as in the first embodiment. Moreover, this heater 2
Since it is arranged between the upper heat storage material 3 and the lower slab 5 having a heat storage function, a higher heat storage effect can be obtained than in the first embodiment.

[0036]

As is clear from the above description, according to the heating panel of the present invention, since the housing is fixed to the joist and the top plate and the upper surface of the joist are almost flush with each other, the surface of the slab is Even in the case where there is a recess or the like, the case is not inclined to form a gap between the top plate and the floor material, and the heating efficiency can be improved. Further, since the heat from the heating element is transmitted to the flooring material without passing through the heat storage material, the flooring material can be heated in a short time even when sudden heating is required. Furthermore, if a heat insulating material, a two-layer heating element or a heat reflecting material is used, the heat storage effect can be enhanced.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a configuration of a heating panel according to a first embodiment of the present invention.

FIG. 2, showing the first embodiment of the present invention, is a perspective view illustrating a state where a heating panel is installed under a floor.

FIG. 3, showing the first embodiment of the present invention, is a perspective view illustrating a configuration of a heating panel in which a heat insulating material is disposed in a lowermost layer.

FIG. 4 is a perspective view showing a second embodiment of the present invention and showing a state where a heating panel is installed under a floor.

FIG. 5 is a perspective view showing a conventional example and showing a configuration of a heating panel.

FIG. 6 is a perspective view showing a conventional example, in which a heating panel is installed under a floor.

FIG. 7 is a perspective view showing a conventional example and showing a state in which a heating panel is installed under a floor when a slab has a concave portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 1a Top plate 1c Side plate 2 Heater 3 Heat storage material 4 Joist 7 Insulation material

Claims (6)

[Claims] 1. A heating element and a heat storage material are laminated in order from the back surface of the top plate downward inside a housing made of a good heat conductive plate material provided with at least a top plate and a side plate. A heating panel characterized in that a side plate of a housing is fixed to a side surface of a joist so that an upper surface thereof is substantially aligned. 2. The housing has a rectangular top plate, a bottom plate of the same shape arranged in parallel below the top plate, and connects the top plate and the bottom plate with long sides on both sides. The heating panel according to claim 1, wherein the heating panel comprises both side plates. 3. The heating panel according to claim 1, wherein a heat insulating material is further disposed below the heating element and the heat storage material stacked inside the housing. 4. The heating device according to claim 1, wherein another heating element is disposed below the heating element and the heat storage material stacked inside the housing. Heating panel. 5. A heat reflecting material is disposed between the heating element laminated inside the housing and the back surface of the top plate above the heating element. The heating panel according to 1. 6. A heat storage material and a heating element are sequentially arranged from the back surface of the top plate to the inside of a housing made of a good heat conductive plate material having a top plate, a bottom plate, and a side plate connecting them. A heating panel which is laminated, and has a side plate of the housing fixed to a side surface of a joist with an upper surface substantially in agreement.