JP2009144381A - Electric heating roof material for snow melting - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric heating roof material for snow melting, laid on the eaves of a roof to thereby heat snow on the part concerned. <P>SOLUTION: An object of the invention is achieved by providing the electric heating roof material for snow melting. In the electric heating roof material for snow melting, a weatherproof layer is provided on the upper surface of a metal plate installed on the upside of the eaves of the roof, an electric heating sheet taking a carbon layer as a heating material is layered on the lower surface of the metal plate, a heat insulating layer is provided on the lower surface of the electric heating sheet, and the electric heating sheet is so constructed that a carbon woven fabric or a carbon sheet made of carbon particles is held between insulating sheets made of synthetic resin made, electrode foils are layered in parallel on the carbon sheet, and a lead wire with a connector is connected to the electrode foils. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electric roof material for melting snow intended to melt on the snow on the roof of the roof eave or installed on the upper surface of the roof tile.

  Conventionally, as a snow melting roof material, a snow melting panel heater laid on the eaves of the roof is known.

  As the panel heater, for example, one in which a heating wire such as a nichrome wire is sandwiched and fixed between two insulating plates is common. When the nichrome wire is used, a uniform panel heater cannot be obtained unless appropriate wiring is provided.

Also, current control such as control of heat generation and maximum temperature is necessary, and unit panel heaters were sometimes connected.
JP-A-2005-248680 JP200112026

  The conventional panel heater has a structure in which a heating wire such as a nichrome wire is sandwiched between insulating plates, and a synthetic resin plate or a ceramic plate is used as the insulating plate, so that the insulation is large, but the heat conductivity is small. Not a few. In the case of a synthetic resin plate, there is a problem that a material having high weather resistance must be used.

  In addition, when a nichrome wire is used as a heating wire, a resistor or other voltage controller (current regulator) is required for heat generation control.

  Further, the panel heater is usually flat, and has a number of problems such as requiring a special order to lay it on a curved surface and requiring special consideration for the entire fixing.

  Also, it is necessary to melt snow in the time of snowfall, especially in the season when a lot of snow falls, for example, from November to March, and it is only 5 months at the longest. Therefore, 7 months should not interfere with the rain. It must be a structure that does not age or break even if it is installed for many years.

  Furthermore, since there is a possibility that the electricity charge becomes large, it is preferable to obtain the amount of electricity necessary for melting snow by private power generation if possible. If the amount of electricity required during snowfall can be obtained, the general electricity charge can be drastically reduced by turning the snow melting electricity into daily electricity when snow melting is unnecessary.

  The present invention solves the above-mentioned conventional problems by layering an electric heating sheet on the back surface of a metal plate that can be used for roofing to form the conventional panel heater.

  That is, according to the present invention, a weathering layer is provided on the upper surface of a metal plate installed on the top of the eaves portion of the roof, and an electric heating sheet using a carbon layer as a heating material is layered on the lower surface of the metal plate, While providing a heat insulating layer, the electric heating sheet sandwiches a carbon woven fabric or a carbon sheet made of carbon particles between insulating sheets made of synthetic resin, and electrode foil is attached in parallel to the carbon sheet. It is an electrothermal roofing material for melting snow characterized by connecting a lead wire with a connector to the foil, and the metal plate has a shape of a roofing material for roofing or a shape that can be fitted and installed on a tile. is there.

  In another aspect of the invention, the metal plate forming the roofing material for the roof is provided with an upper hook on the upper surface of one side of the rectangular plate, and the upper hook on the lower surface of the other edge. The metal plate installed on the tile is curved in a similar shape to the tile, and at least one edge of the metal plate is hung on the tile or the latch provided on the roof. A piece that can be stopped is formed.

  The carbon woven fabric is produced by, for example, weaving a Japanese paper fiber and carbonizing the woven fabric.

  In the above invention, when roofing is made with a metal plate, the metal plate is used, and when it is installed on a roof tile, it is curved in a similar shape so that it can be laid on the top surface of the roof tile. As described above, the present invention can be used without any trouble during snowing as well as during snowing. In the case of a roof that is laid with a metal plate, the electric roof material to be laid on the roof may be formed by layering an electric heating sheet on the back surface of the metal plate. Lay down.

  The electric roofing material is laid from 40 to 60 cm from the eaves. Therefore, when the width of the roofing material is 40 cm, it is used as it is, and when it is 30 cm, it is laid over two rows.

  In the case of roof tiles, the object can be achieved by laying over two or three rows. In the case of roof tiles, there is a case where rainwater is allowed to flow with a gap of about 2 cm to 3 cm between the top surface of the roof tile, and that rainwater flows on a metal plate by being bonded to the roof surface. You can also.

  As mentioned above, if a snow melting material is laid from 40 to 60 cm from the eaves, the snow during this time melts and slides down, so the snow from the eaves to the building can slide down and drop all from the eaves. it can.

  As for power generation, the electricity charges related to the power supply during the melting of snow can be obtained by using the currently known solar cells, wind power generation, or electricity generated using the heat generated when burning waste. The problem of increase can be solved.

  As a metal plate that can be used for roofing, for example, a weather-resistant coating is applied to the surface of a rectangular steel plate or aluminum plate to form a weather-resistant layer, and on the upper surface side of the one edge of the metal plate, an upper hook is provided, An electric heating sheet is provided on the lower surface of the other edge, and an electric heating sheet is layered on the lower surface of the metal plate, and a heat insulating layer is provided on the lower surface of the electric heating sheet. Constructed roofing material.

  In addition, in the case of an electric roofing material laid on the upper surface of the tile, the rectangular metal plate is curved and formed in a shape similar to the upper surface of the tile, and an electric heating sheet is layered on the lower surface of the metal plate, On the upper edge side, a protrusion that hooks on the upper side surface of the roof tile is provided so that the metal plate can be fixed onto the roof tile.

  The above is an example, and a metal plate to be laid on the roof can be appropriately used with a stop structure in order to secure the installation state.

  According to this invention, since the electric heating sheet is layered on the back surface of the metal plate and the heat insulating layer is provided on the lower surface thereof, if the electric heating sheet is energized, heat is generated at a predetermined temperature (for example, 60 ° C.). It has the effect of transferring heat and melting snow on the metal plate efficiently. However, since it becomes a surface heater, the snow in contact with the metal plate is evenly heated and melted. Since at least the snow on the metal plate does not freeze, the snow piled up to some extent (for example, 20 cm) flows down successively and falls from the eaves to the ground. In this way, if the snow on the eaves melts, the snow from the top to the ridge slides down on the roof by its own weight and falls sequentially, so that it is not necessary to pile up snow on the roof excessively, and therefore it is not necessary to scrape snow.

  Further, according to the roofing material of the present invention, rainwater flows down without resistance, so that it can be laid all year round without any trouble during rainfall. Further, in the case of a roof with a metal plate, it is only necessary to layer the electric heating sheet only on the metal plate at the eaves and cover it with a heat insulating material.

  An upper ridge is provided on the upper edge, a rust-resistant paint is applied to the surface of a rectangular steel plate having a lower ridge on the lower edge, an electric heating sheet is layered on the rear surface, and a heat insulating material is layered on the lower surface of the electric heating sheet. Wear to make up the snow melting material.

  The electric heating sheet is a square (for example, a dimension smaller by about 5 cm) than the steel sheet, and is an integral electric heating sheet in which a carbon layer and an electrode foil are sandwiched and sealed by an insulating sheet, and the electrode A lead wire is connected to the lead wire, and a connector is connected to the lead wire. Therefore, the electric heating sheet is connected every time the snow melting material is laid on the roof. Each electric heating sheet is connected in parallel to the power source. Accordingly, even if one electric heating sheet is not energized for some reason and does not generate heat, the other electric heating sheets generate heat without any trouble.

  The power source of the electric heating sheet in this invention is based on local power generation in principle. Therefore, solar thermal power generation and wind power generation can be considered. Solar thermal power generation is disadvantageous in the winter due to sunshine, but if it generates power in spring, summer, autumn, etc., and sells surplus power, it will assist in the winter. In addition, wind power generation depends on regional topography, such as wind direction and volume. Next, the power generation that burns waste and uses the heat is a plan that is possible in local governments.

  As mentioned above, power distribution through local procurement should be considered.

  An embodiment of the electric heating roof material of the present invention will be described with reference to FIGS. An upper hook 2 is provided on the upper edge of the aluminum plate 1 having a thickness of 3 mm, a length of 50 cm and a width of 40 cm provided with a weather-resistant paint layer 4 on the upper surface, and the upper hook 2 on the lower edge. And the bottom plate of the aluminum plate 1 is provided with an electric heating sheet 5 and the electric heating sheet 5 is provided with a heat insulating plate 6 made of foamed urethane. The material 10 is configured.

  The electric heating sheet 5 has a carbon woven fabric 8 stacked on the upper surface of a heat-resistant synthetic resin sheet (for example, nylon sheet 7), and strip-like electrode foils 9a and 9b made of aluminum foil are brought into contact with the upper surface of the carbon woven fabric 8. The nylon sheet 7 was adhered onto the carbon woven fabric 8 and the electrode foils 9a, 9b, and the watertight electrothermal sheet 5 was constituted by heat-sealing the four circumferences of the upper and lower nylon sheets 7, 7. In the figure, 11a and 11b are lead wires, and 12 is a connector.

  As shown in FIG. 3, the connector 12 has a contact plate 14 in which a copper plate is bent in a synthetic resin housing 13, and lead wires are connected to the contact pieces 14 a and 14 b of the contact plate 14. 11a and 11b are contacted and connected. In the figure, 11c is a ground wire. The end edges of the electrode foils 9a and 9b are fixed to the lead wires 11a and 11b using the solder 15.

  In the above description, for example, as shown in FIG. 1A, if the connector 12 is connected to the four sides of the rectangular electric heating sheet, the electric heating sheet can be freely connected to increase the electric heating area.

  In the above example, a carbon woven fabric was used as the electrothermal layer, but the same applies even when carbon particles are applied to the surface of the insulating sheet.

  In the above description, if power is supplied from the lead wire, electricity flows from the electrode foil 9a as indicated by an arrow 21 and flows through the electrode foil 9b as indicated by an arrow 22, for example.

  Since the carbon layer emits infrared rays by electric heat, it can improve snow melting efficiency and can regulate the maximum temperature during production. For example, the upper limit of the temperature is set to 80 ° C. or 60 ° C. By doing so, it is possible to prevent an unexpected accident due to overheating or ignition.

  Another embodiment of the present invention will be described with reference to FIG. 4. The roofing material 16 can be installed on the tile 17 by laminating the electric heating sheet 5 on the lower surface of the steel plate 15 curved to the surface shape of the tile. is there. The roofing material 16 is bonded onto the tile 17 or is fixed by being hooked on the tile by a hooking piece 18 provided on the steel plate 15. In the figure, 19 is a heat insulating plate.

  According to the said Example, there exists a characteristic which can be laid freely also in the existing tile roof. In the above embodiment, the latching piece 18 of the roofing material 16 is latched on the roof tile 17, but it can also be fixed to a latching rod (not shown) installed on the roof.

(A) The top view of the electrothermal sheet of this invention, (b) Similarly vertical side view, (c) The same partially expanded view, (d) Also the partially expanded sectional view of another example. (A) The partial top view of the Example of the laying state similarly, (b) Sectional drawing which similarly shows a latching state. (A) The enlarged plan view which abbreviate | omitted a part of the connector similarly, (b) The enlarged front view which abbreviate | omitted a part, (c) The enlarged plan view of a connection part similarly, (d) Similarly sectional drawing. The perspective view of another Example similarly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Aluminum plate 2 Upper collar 3 Lower collar 4 Paint layer 5 Electric heating sheet 6 Heat insulation board 7 Nylon sheet 8 Carbon woven fabric 9a, 9b Electrode 10 Roofing material 11a, 11b Roofing material 12 Connector 13 Housing 14 Contacting plate 15 Metal Board 16 Roofing material

Claims (4)

  A weatherproof layer is provided on the upper surface of the metal plate installed on the top of the eaves of the roof, an electric heating sheet having a carbon layer as a heating material is applied to the lower surface of the metal plate, and a heat insulating layer is provided on the lower surface of the electric heating sheet. The electric heating sheet is formed by sandwiching a carbon woven fabric or a carbon sheet made of carbon grains between insulating sheets made of synthetic resin, and attaching an electrode foil in parallel to the carbon sheet, and the electrode foil has a connector. An electric roofing material for melting snow, characterized by connecting lead wires.   The electric roof material for melting snow according to claim 1, wherein the metal plate has a shape of a roofing material for a roof gutter or a shape that can be fitted and installed on a tile.   The metal plate that forms the roofing material for the roof gutter is provided with an upper hanger bar on the upper surface side of one side of the rectangular plate, and a lower hanger shape that is hung on the lower surface side of the other edge with the upper hanger bar. The electric roofing material for melting snow according to claim 1, further comprising a stop rod.   3. The metal plate installed on the tile is curved in a similar shape to the tile, and at least one edge of the metal plate is formed with a hook piece that can be hooked to a latch provided on the tile or the roof. Electric roofing material for melting snow.

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