JPH0233932B2 - - Google Patents

Abstract

PURPOSE:To provide a hot water panel, which is simple in structure, light in weight, and able to mass-produce, with no fear of corrosion and excellent touch in use by a structure wherein guides to control water passage and load-carrying struts are protruded on at least one inside surface of two rubber-like elastic sheets, the peripheral edges of which are bonded each other. CONSTITUTION:The peripheral edge part 3 of a hot water panel 1 and the guides 4 to define the water passage within the panel 1 are formed in advance integral with a panel sheet 1A or 1B. Struts 5, which prevent a panel top surface sheet 1A from deforming when subjected to load and yet either of the cylindrical, square or elliptic form of which may be acceptable, are formed in advance integral with the panel sheet 1A or 1B. Six sheets of the hot water panels 1 are connected one after another by fitting hoses 6 and hose bands 7 onto the mouthpieces 2A and 2B of the respective hot water panels 1. Olefin thermoplastic resin is preferably employed as the rubber-like elastic body for said hot water panel. The sectional width of the water passage is rendered to be as wide as possible so long as no collapse occurs when load is applied to the upper and lower sheets 1A and 1B, resulting in increasing the flow rate and enabling to lower the height of the section of the water passage and consequently to make the thickness of the panel main body thinner.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hot water panel that uses hot water as a heating fluid, and in particular, it has a simple structure, is lightweight, and can be mass-produced by passing hot water directly into the panel body without using hot water pipes. The present invention relates to a hot water panel that is flexible, free from corrosion, and has an excellent feel when used.

Heating panels that use hot water as a terminal for systems that use hot water boilers or solar power are widely used for floor heating in residences, and can also be used as a heating source for wall heating or snow melting.

Conventionally, this type of hot water panel has been constructed by assembling a heat dissipation plate made of copper plate, aluminum plate, etc. and metal hot water pipes arranged on the back side of the heat dissipation plate, or by adding meandering grooves to a thick plastic plate and attaching them to the grooves. A typical configuration includes metal hot water pipes for heating. However, in the case of the former, for example, it is necessary to use a metal plate with good thermal conductivity for the panel due to its characteristics as a heat dissipation plate, so metal properties are added to the panel and it becomes a rigid body, giving it a strong rugged feel. When used as a floor panel, it has a poor feel even after surface treatment. Furthermore, since metal is used as a material, it is heavy and has the disadvantage of poor workability during installation.

In the latter case, the thermal conductivity of plastic is two to three orders of magnitude lower than that of metal, and even if meandering grooves are provided, the density of hot water pipes will vary due to processing and flow resistance constraints of the pipe length. As a result, the disadvantage is that sufficient heat dissipation cannot be obtained, and even if a satisfactory temperature is obtained near the hot water pipe, the temperature is low at a distant location, making it impossible to obtain a uniform temperature distribution. There were flaws.

In addition, in any of the above cases, the processing is complicated because the heat sink and the hot water pipe are separate bodies, and the disadvantage is that there is air with extremely poor heat conduction between the hot water pipe and the heat sink. As a result, heat conduction from the hot water pipes to the heat sink was restricted, and there were also problems with durability due to metal corrosion of the hot water pipes.

The present inventor has conducted repeated studies to solve the above-mentioned drawbacks of conventional hot water panels, and as a result, has arrived at the present invention.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a hot water panel that has a simple structure, is lightweight, can be mass-produced, is free from corrosion, and has an excellent feel when used.

That is, the present invention provides a hot water panel that uses hot water as a heating fluid, in which the panel body is formed of two rubber-like elastic sheets whose peripheral edges are joined,
The gist of the hot water panel is a hot water panel in which a weir and a load support for regulating a waterway are protruded from the inner surface of at least one of the two sheets, and a cap is provided as an entrance and exit for the waterway.

The present invention will be specifically described below with reference to the drawings.

Figures 1, 2 and 3 show embodiments of the present invention, in which Figure 1 shows the top surface of the heating hot water panel;
The figure is a sectional view from A to A' in FIG. 1, and FIG. 3 is a top view of an example in which six unit panels are connected.

In Fig. 1, 1 indicates a hot water panel, 1A in Fig. 2 is the panel top sheet and heat radiation surface, and 1B
indicates the bottom sheet of the panel. Reference numerals 2A and 2B indicate mouthpieces for supplying hot water to the hot water panel 1. Reference numeral 3 indicates the peripheral edge of the hot water panel 1, which is formed in advance to be attached to the panel sheets 1A or 1B, but in this embodiment, it is integrated with the bottom sheet 1B. 4 indicates the weir that determines the waterway inside the panel;
Although it is molded in advance to be attached to the panel sheets 1A or 1B, in this embodiment it is integrated with the bottom sheet 1B. Reference numeral 5 denotes a column that prevents deformation when the panel top sheet 1A is subjected to a load, and although it has a cylindrical shape in the example shown in FIG. 1, it may be either a prismatic column or an inert cylinder. Although it is molded in advance to be attached to 1A or 1B, in this embodiment it is integrated with the top sheet 1A.

FIG. 3 shows an example in which six bases 2A and 2B of the hot water panel 1 are connected by a hose 6 and a hose band 7.

There are various synthetic resins as rubber-like elastic bodies that can be applied to hot water panels such as those described above, but preferred ones are olefin thermoplastic resins, such as "Milastomer" (manufactured by Mitsui Petrochemical Co., Ltd.).

It is preferable to make the cross-sectional width of the flow channel as wide as possible without collapsing when a load is applied to the upper and lower panels, as this will increase the flow rate, reduce the cross-sectional height, and reduce the thickness of the panel body. Generally, the total cross-sectional width of the flow channel is 60% of the heat radiation surface width.
It is preferable to make it more than that.

When used on a place that receives a large load such as a floor panel, the support that receives the load must be made thicker, and the total cross-sectional width of the flow channel is preferably about 60% of the heat radiation surface width. For panels that do not receive much load on the panel surface, it is preferable to make the supports thinner so that the total cross-sectional width of the flow channel is around 80%.

By applying embossing or flocking to the top surface of the panel sheet, it is possible to create a carpet-like feel when used as a floor heating panel.
It is also preferable to bond polyethylene, polypropylene, or EVA foam to the bottom surface for heat insulation purposes.

Next, to explain the method for manufacturing the hot water panel of the present invention, for example, a synthetic resin sheet with a thickness of about 3 mm is placed in a heating mold with a peripheral edge and a weir patterned in advance, and is adsorbed and heated with a vacuum to form the pattern of the mold. is transferred to a resin sheet. Next, another sheet is placed in a heating mold patterned with load struts, and after this is transferred, they are joined together.
The joining method may be adhesion or fusion, and not only the peripheral portion but also the weir and support can be joined to the corresponding sheet surface. Convex patterns such as peripheral edges, weirs, pillars, etc. may be provided on either the upper surface or the lower surface, or may be provided on the upper and lower surfaces as in the above embodiment.

Since the hot water panel of the present invention has the above-mentioned configuration,
It has the following excellent advantages:

(1) Since the panel body is made of rubber-like elastic material, it has better impact resistance and feels better when used than metal panels.

(2) Since no metal water pipes are arranged, it has excellent workability and is lightweight, making it suitable for mass production. It also has no corrosion and is highly durable.

(3) Since it has a cap at the hot water inlet and outlet, it can be connected to form a panel of the desired size.

(4) Since no water pipes are used, the thickness of the panel can be made extremely thin, resulting in low heat loss.

(5) Since the panel body forms the flow path, there are fewer parts and fewer failures.

(6) The amount of water circulated in conventional hot water panels is several minutes per minute, and the diameter of the water pipe is 10 mm, taking into account flow resistance, 100 mm.
It is comparable to pitch piping, and in this case, the cross-sectional area of the hot water channel is approximately 80 mm ² with respect to the heat radiation surface width of 100 mm.

In contrast, in the case of the present invention, 40% of the cross-sectional width of 100 mm is occupied by the weir and support, and the height is set to 3.
If designed to be 2 mm, the cross-sectional area of the hot water channel will be approximately 180 mm ² , which is more leeway than conventional products.

[Brief explanation of drawings]

1 to 3 show embodiments of the present invention, in which FIG. 1 is a top view, FIG. 2 is a sectional view taken along line A-A' in FIG. 1, and FIG.
The figure is a top view showing an example in which panels are connected. 1... hot water panel, 2... base, 3... periphery, 4... weir, 5... load support.

Claims (1)

[Claims] 1. In a hot water panel that uses hot water as a heating fluid, the panel body is formed by two rubber-like elastic sheets whose peripheral edges are joined, and at least one of the two sheets has a water channel regulated on its inner surface. A hot water panel characterized in that a weir and a load support are protruded, and a mouthpiece is provided as an entrance and exit for a waterway.