JPH0447531Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a soft floor heating mat that is used by laying a heating fluid such as hot water on the floor surface of a room as a heating medium. This has been improved to quickly detect nail driving at the point where it flows through the conduit, and to prevent accidents in advance where the heat medium leaks from the nail driven part.

[Conventional technology]

Flexible soft floor heating mats that use heating fluid such as hot water as a heat medium have piping grooves formed in a meandering pattern on a base sheet made of thermoplastic resin foam that serves as the insulation layer of the mat. It is generally known to have a structure in which a conduit is laid through which the heat medium flows, and a coating material is applied to the surface of the conduit (for example, the structure of the
(See Publication No. 60608).

[Problem that the idea aims to solve]

Soft floor heating mats that require flexibility need to be formed with a thin wall thickness, and woven or non-woven fabrics are used as the surface covering material to protect the conduits laid on the base sheet. It lacks functionality. Then, lay soft floor heating mats on the floor,
To lay and fix flooring material on top of it, nailing is usually used, but
This fixing work often involves the risk of accidentally driving the nail into the conduit. When a gap is created between the conduit and the nail due to this nail driving, the heat medium flowing in the conduit leaks from the gap and flows out of the pine, causing an accident. The soft floor heating mats in 2017 do not have measures against heat medium leakage by driving nails into the conduits. Therefore, the purpose of this invention is to quickly detect the nail driving by electrical means when a nail or the like is driven into a conduit and there is a risk of heat medium leakage, thereby preventing the risk of heat medium leaking out of the pipe. An object of the present invention is to provide a soft floor heating mat which is improved so as to eliminate the problem in advance. Another purpose of the present invention is that when a nail or the like is driven into a conduit, the location of the nail can be easily detected, and when multiple mats are installed, the abnormal mat can be replaced. It is an object of the present invention to provide a flexible floor heating mat that is improved and convenient.

[Means to solve the problem]

In order to achieve the above object, the soft floor heating mat, which is a feature of the present invention, has piping grooves arranged in a meandering manner on a base sheet made of thermoplastic resin foam, which is a heat insulating layer. A conduit through which the medium flows is laid, and the starting end of the conduit is connected to the inlet of the header, and the terminal end of the conduit is connected to the return port of the header. In the floor heating mat, the conduit and the covering material are formed of an electrically insulating material, and the header is formed of a conductive material, and a conductive layer is provided on the covering material directly above the conduit, and a conductive layer is formed on the covering material. A detection circuit, which is normally electrically insulated, is formed between one end and a portion of the header via a conductive heat medium flowing in the conduit. The detection circuit is connected to a detection device that detects electrical continuity. In the present invention, the detection device is configured as an alarm such as a buzzer or a flashing lamp, or as a converter that converts the electrical resistance measured by the detection circuit into distance.

[Effect]

If a conductive object such as a nail is driven into the conduit, when a conductive heat medium flows through the conduit, the detection circuit will be immediately connected through the heat medium, reducing the risk of leakage of the heat medium from the conduit. The alarm instantly detects that something is happening, and the electrical resistance measured by the detection circuit is converted into distance by the converter, so if there is a nail or other object from one end of the conductive layer, which is the starting point of detection, The distance to the driving location can be known and the driving location can be easily confirmed.

【Example】

Embodiments of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, a base sheet 1 which is a heat insulating layer is formed of a thermoplastic resin foam,
Three to five piping grooves 2 are provided in a meandering manner in parallel to each other on the surface side of the base sheet 1. The illustrated case is an embodiment in which three piping grooves 2 are provided, and each piping groove 2 gathers at a portion where both ends face the peripheral edge 1a of the base sheet 1, and this gathering portion 3
A header 4 made of a conductive material such as a copper alloy is provided. Each piping groove 2 has a conduit 5 through which a conductive heat medium such as hot water flows separately.
A, 5b, 5c are laid respectively, and these conduits 5
While connecting the starting end and the ending end of a to 5c to the inlet port 4a and return port 4b of the header 4, respectively,
A covering material 6 is applied to the front side of the base sheet 1 to constitute a soft floor heating mat. And base sheet 1
As the thermoplastic resin foam material, it is preferable to use, for example, a cross-linked low-density polyethylene foam with an expansion ratio of 10 to 40 times and a heat resistance of 3 to 20 mm.
The conduit 5 is formed of an electrically insulating material, and for example, when the thickness of the base sheet 1 is 10 mm, the outer diameter is 8 mm.
It is preferable to use a crosslinked product of low density polyethylene having an inner diameter of 5 mm. Further, the covering material 6 is formed of an electrically insulating material such as a thermoplastic resin film, its foam, woven fabric, or nonwoven fabric. Next, in the soft floor heating mat with the above configuration,
On the coating material path 6, as shown in FIGS. 3 and 4, a conductive layer 7 formed by a coating film of conductive paint or the like is continuously provided directly above each of the conduits 5a to 5c. The conductive layer 7 is connected to the covering material 6 at a distance (5 to 10 mm) from the header 4 so as not to come into contact with the header 4.
Form on top. One end 8a of the conductive layer 7 facing the starting end side of the conduit 5a and the grounded header 4
A detection circuit, which is normally electrically insulated, is formed between the part 8b and the part 8b via a heat medium flowing in the conduits 5a to 5c, and 9 is a lead wire for connection thereto. . Note that the other end 8c of the conductive layer 7 is electrically cut off. The detection circuit also includes an alarm device 11 such as a buzzer or a flashing lamp (shown by a phantom line in FIG. 3), and a converter 12 that converts the electrical resistance measured by the detection circuit into distance. If a detecting device is connected to the transducer 12 and the detecting device is constituted by a converter 12, one end 8a of the conductive layer 7 described above is connected to the converter 12.
A distance indicator 13 from the starting point is connected. Note that 14 is a lead wire for connecting the converter 12 and the display 13. According to the above configuration, when a conductive object such as a nail is driven into any of the conduits 5a to 5c, the alarm 11 or the converter 12 is installed at the point when the conductive heat medium flows through the conduit. The detection circuit immediately becomes conductive, and the alarm 11 detects that there is a risk of leakage of the heat medium from the conduit, and the converter 1
2, one end 8a of the conductive layer 7 is the starting point of detection.
The distance from the location to the place where the nail or the like is driven can be automatically displayed on the display.

[Effect of the idea]

The present invention is as described above, and if a nail or the like is accidentally driven into the conduit when the mat is laid on the floor and the flooring material is fixed on it, when the heat medium flows through the conduit, Because the detection circuit becomes conductive immediately and the detection device can be activated,
The risk of leakage can be prevented in advance by, for example, stopping the supply of heat medium, which is extremely effective in increasing the safety of soft floor heating mats. By using an alarm or a converter that can convert electrical resistance into distance as a detection device, it is possible to instantly detect the driving of a nail, etc., and also to detect the location of nail driving. It has great practical value, such as being convenient for replacing abnormal mats.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view of a soft floor heating mat to which the present invention is applied, with the covering material partially peeled off, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3. 4 is a schematic configuration diagram showing an embodiment in which the present invention is applied to the above-mentioned soft floor heating mat, and FIG. 4 is a partial sectional view of FIG. 3. In the figure, 1 is a base sheet, 2 is a piping groove, 4 is a header, 4a is an introduction port, 4b is a return port 5a, 5
b, 5c are conduits, 6 is a covering material, 7 is a conductive layer, 8a
is one end, 8b is one part, 11 is an alarm, 12
is a converter.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Piping grooves are provided in a meandering manner on a base sheet made of thermoplastic resin foam that is a heat insulating layer, and a conduit for circulating a heat medium is laid in the piping grooves. ,
The starting end of the conduit is connected to the inlet port of the header, and the terminal end is connected to the return port of the header, and the conduit and the covering material are connected to the soft floor heating mat in which the covering material is applied to the surface side of the base sheet. A header is formed of an electrically insulating material and a header is formed of a conductive material, and a conductive layer is provided on the covering material directly above the conduit, and between one end of the conductive layer and a portion of the header. for,
A detection circuit that is normally electrically insulated is formed via a conductive heat medium flowing in the conduit, and detects that the detection circuit is electrically connected to the detection circuit. A soft floor heating mat characterized by being connected to a detection device. (2) The soft floor heating mat according to claim (1), wherein the detection device is an alarm such as a buzzer or a flashing lamp. (3) The soft floor heating mat according to claim (1), wherein the detection device is a converter that converts the electrical resistance measured by the detection circuit into distance.