JPH0750512Y2 - Base material for heating - Google Patents

Description

[Detailed Description of the Invention] << Industrial Application Field >> The present invention relates to a base material to be installed on the back surface of a building interior material such as a decorative flooring material and a wall surface decorative material, and more particularly to a heating base material having a heating effect.

<< Prior Art >> In recent years, floor heating has attracted attention because it is an effective heating method in Japan where the living area is small. Although various proposals have been made for this floor heating, it is general that a heating wire heater is embedded in a wooden decorative material like a hot carpet.

However, in the above-described floor heating, since the set temperature as a whole is maintained by intermittently energizing the thermostat, the floor surface may be temporarily heated above the set temperature. It is presumed that this is a factor causing the so-called low temperature burn which has become a problem recently. In addition, the thermostat has a limit of 100,000 contact life due to mechanical contact.

In addition, the floor is often subject to unexpected shocks or mechanical loads, and if a failure occurs due to heater disconnection due to these, remove all floor material to repair it and remove the disconnection point. It was very troublesome to look into.

In addition, a floor heating panel (Japanese Patent Laid-Open No. 63-131932) in which the entire circumference of a laminated body composed of a plate-shaped heating element and a plate-shaped building material is integrally surrounded by a metal plate, and there is no fear of disconnection, and self-temperature A heater for floor heating that uses a heating element with a control function (Shokai 59
-94214) has also been developed, but it is not intended to be used as a base material that can be finished by placing a decorative plate such as a veneer on it, and is not suitable for such applications. It was a thing. Especially in the former case,
Since the entire circumference of the laminate is integrally surrounded by a metal plate, not only is it expensive but also the panel becomes heavy and the workability is poor, and even when it is used as a floor base material, it does not have a real part Therefore, there is a defect that workability and workability are poor.

Further, in the latter case, since the uppermost part is the surface cloth member, it cannot be used as it is as a base material for a wooden flooring material, and naturally, it does not have a real part either. .

Therefore, as a result of intensive studies to solve the above-mentioned drawbacks, the present inventors stopped using metal as a heat conductive plate and embedded a self-temperature control type heater in a lightweight inorganic plate, and plied them together. When it is laminated on top of it and the real part is provided, it can be a heating base material that is safe and lightweight and has excellent workability and workability, and a decorative plate such as a veneer should be attached to the surface. Can easily form wood flooring, etc., and, in particular, when a self-temperature control type heater having a large number of self-controlling resistors connected in parallel between two conductors is used. The inventors have found that the heater function does not disappear even if a part of the resistor is broken, and therefore, the durability and safety can be further improved, and the present invention was achieved. .

<< Problems to be Solved by the Invention >> Therefore, a first object of the present invention is to provide a base material for heating which is light in weight, excellent in workability and workability, and excellent in thermal efficiency.

A second object of the present invention is to provide a base material suitable for a wood heating floor material.

Further, a third object of the present invention is to provide a heating base material which is particularly excellent in safety and durability.

<< Means for Solving the Problems >> The above objects of the present invention are to provide at least plywood, an inorganic plate (6) having a self-temperature control type heater embedded in the upper surface of the plywood, and the inorganic plate (6). ), Which is a laminated body comprising a heat conductive plate (7) disposed on the upper surface of the laminated body, and a male base portion and a female solid portion are provided on both end faces in the longitudinal direction of the laminated body, respectively. Achieved by

Hereinafter, the present invention will be described in detail based on embodiments.

FIG. 1 is a cross-sectional view when the heating base material of the present invention is used for floor heating.

In FIG. 1, reference numeral (1) is a heating base material (hereinafter, simply referred to as “base material”) of the present invention laid under the decorative surface material (2).
It is). The base material (1) was arranged on the plywood body (5), the inorganic plate (6) in which the heating element (10) was embedded, which was arranged on the upper surface of the plywood (5), and the upper surface of the inorganic plate (6). It is a laminated body composed of a heat conduction plate (7). The heating element (10) used in the present invention is a self-temperature control type heater having a special resistance-temperature characteristic in which the resistance value is small at low temperature and increases with increasing temperature. That is, when this self-temperature control type heater is used for floor heating, when the room temperature is low, the resistance value of the self-temperature control type heater is small, so the floor surface is quickly heated with a large output, As the temperature rises, the resistance value of the self-temperature control type heater gradually increases and the output decreases, and the floor surface is not temporarily heated above the margin setting temperature.
In addition, a large number of self-temperature control type resistors made of conductive plastic in which carbon fine particles and carbon fibers are dispersed in a heat-deformable synthetic resin are connected in parallel between two conductors. When used, some of them do not lose their function even if they cause a current failure, so they do not cause a fatal failure like the conventional heating wire heater, and have particularly excellent durability.

In the above-mentioned self-temperature control type conductive plastic, the temperature aging characteristics of the heat-deformable type synthetic resin are poor, and conventionally, stability and safety were difficult, but in the present invention, in the plate made of an inorganic material, Since it is buried, sufficient safety can be secured.

Whatever the synthetic resin used for the conductive plastic of the self-temperature control type heater, it is possible to take a stable three-dimensional structure that is resistant to thermal aging by crosslinking with a crosslinking agent or irradiating with an electron beam. However, in this case, the stability of the conductive plastic becomes higher, and in combination with the inorganic plate, it has excellent safety.

The inorganic plate (6) used in the present invention is made of an inorganic binder such as cement and gypsum, and is appropriately selected from known ones having excellent fire resistance. In order to insulate heat, it is preferable to use a material containing artificial lightweight aggregate. The thickness is preferably about 5 to 20 m / m in consideration of weight reduction, durability and heat insulation.

The heat conduction plate (7) used in the present invention can be appropriately selected from known metal plates, but an aluminum plate (preferably a thickness of 0.05 to 0.1 mm) having particularly good heat conductivity is used. Is preferred.

Since the heating base material of the present invention has the male and female parts at both ends, the base materials can be integrated by joining the base materials facing each other.

When the base material is fixed to the joist of the floating floor structure, it is preferable to previously provide a fixing hole in the base material and fix the base material with a wood screw or the like because the impact at the time of construction can be mitigated. Further, when laying directly on the floor slab, it is preferable to attach a cushioning material to the lower surface of the base material in order to absorb unevenness of the floor slab and form a flush floor surface. As the cushioning material, for example, elastic foam made of glass wool mat or synthetic resin material can be used.

INDUSTRIAL APPLICABILITY The heating base material of the present invention can be used for walls and the like without being predicated on floors as in the above embodiment. The effect of the heating base material of the present invention will be described below together with the operation.

<Effects> With the above configuration, if the heating base material of the present invention is used, when the floor surface temperature is low such as in the morning of winter, the resistance value of the heater is low, so a large output can be provided for quick heating as soon as the power is turned on. Starting, and as the floor temperature rises, the resistance value of the heater increases, so the output gradually decreases,
Unlike conventional electric heaters, the floor surface is not temporarily heated above the set temperature, so the initial heating is quick and there is no danger of low temperature burns, and heating efficiency is good.

In particular, when the self-temperature control type heaters in which a large number of two conducting wires are connected in parallel in a matrix form are used, even if a part of the heaters fails to conduct electricity, the overall effect is extremely low. It has excellent durability.

Further, since the heat from the heater is transmitted to the heat conducting plate provided on the upper surface thereof and diffused evenly over the entire floor surface, the entire floor surface can be uniformly heated.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view when the heating base material according to the present invention is used for a floor. 1 ... Base material for heating 2 ... Decorative surface material 5 ... Plywood 6 ... Inorganic plate 7 ... Heat conduction plate 10 ... Self-temperature control type heater

Claims (2)

[Scope of utility model registration request] 1. A plywood (5), an inorganic plate (6) having a self-temperature control type heater embedded therein, which is arranged on the upper surface of the plywood (5), and arranged on the upper surface of the inorganic plate (6). A heating base material comprising a heat conductive plate (7), wherein a male portion and a female portion are respectively provided on both end surfaces in the longitudinal direction of the laminated body. 2. The heating base material according to claim 1, wherein the self-temperature control type heater comprises a plurality of self-temperature control resistors connected in parallel between two conducting wires.