JP3239123U - Snow/ice melting device - Google Patents

Abstract

An object of the present invention is to provide a snow/ice melting device capable of efficiently and stably exhibiting a snow/ice melting function without fear of positional displacement, damage or disconnection. [Composition] A snow melting/thawing device that prevents snow accumulation/freezing, suppresses snow accumulation/freezing, or melts snow/ice by arranging it in an outdoor facility that has a flat part/exposed part that is covered with snow when it snows or freezes when it is extremely cold, The snow melting/melting device is capable of energizing a heat generating sheet formed by applying an electrically heat generating paint to at least one side of a PET sheet by screen printing, and an end portion of the heat generating sheet and a portion in contact with the electrically heat generating paint. a waterproof sheet covering both sides of the heat-generating sheet in a waterproof state; and one end of the waterproof sheet is connected to the electrode part from the outside of the waterproof sheet, and the other end is connected to the power supply part. and a power cable portion, which is laid on the back surface of the outdoor equipment. [Selection diagram] Fig. 1

Description

There is an application for application of Article 30, Paragraph 2 of the Patent Act, which is applied mutatis mutandis to Article 11 of the Utility Model Act. Date of issue: December 1, 2021, Sato Technical Research Institute Bulletin No. 46, pp. 26-33, Sato Kogyo Co., Ltd.) Melting snow" published in publication (Publication date: April 1, 2020, Technical Center Activity Report vol.7, Page 8, Sato Kogyo Co., Ltd. Technical Center)

TECHNICAL FIELD The present invention relates to a snow-melting and de-icing device, and more particularly to a snow-melting and de-icing device for preventing snow accumulation and freezing of construction scaffolds, scaffold stairs, roofs and other outdoor facilities in winter.

In the winter season, there is no end to falling accidents and falling accidents due to snow accumulation or freezing on outdoor stairs.
Snow removal and deicing work is generally done manually using a shovel or pickaxe, or by spraying snow-melting agents. . Moreover, such snow removal and deicing work must be performed frequently each time it snows or is extremely cold.

Therefore, techniques for removing snow and ice by laying sheets, mats, etc. containing electric heaters on roof surfaces and stair treads to melt snow and ice have been proposed (see, for example, Patent Documents 1 and 2). .

Patent No. 3817088 JP-A-61-156687

However, according to the technique of laying a sheet containing an electric heater on the tread surface of an outdoor staircase, as in the techniques of Patent Documents 1 and 2, the position of the electric heater may be displaced due to people walking up and down, or the electric heater may be stepped on repeatedly. In some cases, damage due to wire disconnection or surface wear may occur.

In particular, if the position is misaligned, not only will there be safety issues such as stumbling when climbing or passing, but the sheet will misalign, making it impossible to melt snow and ice on the exposed tread surface of the stairs. There was a problem.

Further, when the surface of the seat is abraded, water generated when the snow or ice melts may seep into the interior of the seat, causing a short circuit and damaging the internal electric heater.

Furthermore, when the electric heater is disconnected, not only does the sheet with the disconnection fail to function, but also all of the sheets electrically connected to this sheet become defective in conduction. For example, when all the stairs in a row are of one system of electrical connection configuration, there is a problem that the snow melting/melting function of all the stairs in this row stops.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a snow melting/melting device that can efficiently and stably perform the snow melting/ice melting function without fear of positional displacement, damage, or disconnection.

The object of the present invention is achieved by the following configuration.

1. A snow melting/melting device that prevents snow accumulation/freezing, suppresses snow accumulation/freezing, or melts snow/ice by arranging it in an outdoor facility that has a flat portion, an inclined portion, or an exposed portion that is covered with snow during snowfall or freezes during extreme cold,
The snow melting/ice melting device
a heat-generating sheet formed by applying an electrically heat-generating paint to at least one side of a support sheet made of synthetic resin by screen printing;
an electrode portion electrically conductively disposed on a portion of the heat generating sheet that contacts the electrically heat generating paint;
a waterproof sheet covering both sides of the heat generating sheet in a waterproof state;
a power cable part having one end connected to the electrode part from the outside of the waterproof sheet and the other end connected to a power supply part;
consisting of
A snow-melting/ice-melting device characterized in that the snow-melting/ice-melting device is laid on the rear surface of the outdoor equipment.

2. 2. The snow melting and ice melting device according to the above 1, wherein the electrically heated paint is based on a water-based resin and uses a carbon nanomaterial.

3. 3. Snow melting according to 1 or 2 above, characterized in that the heat generation distribution is changed according to the region by setting the coating thickness of the electrically conductive heat generating paint to an arbitrary thickness according to the region of the coated surface. De-icing device.

4. 3. The snow melting and ice melting device according to the above 1 or 2, wherein the water impermeable sheet is a synthetic resin sheet, and the heat-generating sheet is covered in a water impervious state by heat-sealing the ends of the sheet.

5. 3. The snow melting and ice melting device according to the above 1 or 2, wherein a conductive material is applied to a portion in contact with the applied heat-generating paint to form the electrode portion.

6. 3. The snow-melting/ice-melting device according to the above 1 or 2, characterized in that, when the snow-melting/ice-melting device is laid on the outdoor facility, a heat insulating material is arranged on a surface that does not come into contact with the outdoor facility.

7. 2. The snow and ice melting apparatus according to 1 above, wherein the outdoor facility is any one of construction scaffolding, working scaffolding, scaffolding stairs, outdoor stairs, and roofs.

8. The energization operation of the snow melting/melting device is controlled based on information from any one or more of a snowfall sensor, temperature sensor, WEB camera, and IoT smart switch installed at or near the outdoor facility. 8. The snow/ice melting device according to the above 1 or 7, characterized by:

According to the invention shown in claim 1, it is possible to provide a snow melting/melting device that can efficiently and stably perform the snow melting/ice melting function without fear of positional displacement, damage, or disconnection.

In particular, by arranging it on the rear surface of the outdoor equipment, there is no risk of damage due to being stepped on, misalignment, or turning over due to aging. Since positional displacement and curling do not occur, it is possible to suppress or prevent overturning and injury due to stumbling, resulting in high safety.
In addition, since the entire area of the coated surface of the electrically-heat-generating paint is a current-carrying area, the entire coated area generates heat at a substantially uniform temperature without gaps. Moreover, even if the heat generating sheet is partially damaged, all the parts other than the damaged part are energized, i.e., there is no disconnection, so the snow/ice melting function is always exhibited. be able to.
In addition, since screen printing is used to apply the electrically-heatable paint to the synthetic resin sheet, the coating surface has a uniform and desired thickness that can exhibit a uniform and efficient snow-melting and ice-melting function over the entire coated area. can be easily obtained. An arbitrary power density, that is, an arbitrary heat generation distribution can be set by setting a uniform coating thickness.

According to the invention shown in claim 2, heat is generated immediately when energized, the temperature rises quickly at a low voltage, and the entire coating surface is uniformly heated without gaps. The snow melting and ice melting function can be demonstrated with energy saving.

According to the third aspect of the invention, the heat generation distribution can be changed according to the area by setting the coating thickness of the electrically heating paint to an arbitrary thickness according to the area of the coated surface.
For example, by increasing the amount of heat generated by thinning the coating thickness of the heat-generating paint toward the periphery where the temperature tends to drop due to heat dissipation, the heat generation temperature is almost uniform over the entire coated surface, so a heat-generating sheet is laid. The snow melting and ice melting function can be efficiently exhibited over the entire area.

According to the invention shown in claim 4, it is possible to obtain a waterproof structure at low cost because it can be easily produced with a simple configuration using readily available inexpensive materials.

According to the invention shown in claim 5, since the electrode part is formed by applying a conductive material to the part that contacts the electrically heated paint by screen printing paint, soldering defects that occur in the electrode part due to soldering or screwing are reduced. Reliable energization is possible without the risk of contact failure or wire breakage due to loose screws or rust.

According to the invention shown in claim 6, by suppressing or preventing heat radiation from the surface that does not come into contact with the outdoor equipment, it is possible to efficiently exhibit the function of melting snow and ice on the outdoor equipment.

According to the invention shown in claim 7, it can be applied to outdoor facilities that conventionally required manual snow removal and ice removal work.

According to the eighth aspect of the invention, it is possible to efficiently melt snow and ice by remote control without going to the location of the outdoor equipment.

Schematic configuration diagram showing an embodiment of the snow melting/ice melting device according to the present invention Schematic explanatory diagram showing a configuration example in which the snow melting/ice melting device shown in FIG. 1 is installed on the scaffold stairs (for one step) Schematic configuration diagram of main parts showing a state in which the snow melting/melting device shown in FIG. 1 is installed on the scaffold stairs (for one step) Schematic explanatory plan view for explaining an example of heat generation distribution of a heat generating sheet Schematic explanatory plan view for explaining an example of the coating thickness of the electrically heated paint Graph showing an example of experimental results when applied to scaffold stairs (power density 200 (W/m ² )) Graph showing an example of experimental results when applied to scaffold stairs (power density 300 (W/m ² )) Graph showing an example of experimental results when applied to scaffold stairs (power density 350 (W/m ² )) Graph showing the relationship between set temperature and power density on the surface of scaffold stairs Graph showing the relationship between the set temperature and power density on the top surface of the heating sheet

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. FIG.

The snow melting/ice melting device (hereinafter also simply referred to as the device) 1 of the present invention is
In a configuration that prevents snow accumulation/freezing, suppresses snow accumulation/freezing, or melts snow/ice by arranging it in an outdoor facility that has a flat portion, an inclined portion, or an exposed portion that snows during snowfall or freezes during intense cold,
The device 1
a heat-generating sheet 2 formed by applying an electrically heat-generating paint 21 to at least one side of a support sheet 20 made of synthetic resin by screen printing;
an electrode portion 22 disposed so as to be electrically conductive at the end portion of the heat generating sheet 2 and in contact with the heat generating paint 21;
a waterproof sheet 3 covering both surfaces of the heat generating sheet 2 in a waterproof state;
a power cable portion 5 having one end connected to the electrode portion 22 from the outside of the waterproof sheet 3 and having the other end connected to the power supply portion 4;
consisting of
It is mainly configured to be used by laying it on the back surface of the outdoor equipment.

The electrically-heating paint 21 is preferably based on a water-based resin and has a structure using a carbon nanomaterial. For example, a particularly preferable electrically-heating paint is Carbo e-Therm manufactured by Thermoheld GmbH. Incidentally, the base material is not limited to being water-based, and may be oil-based.
By using the heat-generating paint 21 as a heat-generating substance, heat is immediately generated when electricity is applied, the temperature rises quickly, and the entire area of the coated surface is uniformly heated without any gaps, so that the snow-melting and ice-melting functions can be exhibited. Moreover, since it exhibits performance equal to or higher than that of an electric heater at a lower voltage, it has the advantage of being highly efficient and energy-saving, as well as being highly safe.

The support sheet 20 to which the electrically heated paint is applied is preferably a synthetic resin sheet or film from the viewpoint of insulation and handling (not only during manufacturing but also during construction). Examples of resins include those commonly used as synthetic resins for forming sheets or films such as polyethylene, polycarbonate, and vinyl chloride. It is most preferable in terms of easiness (suitable for screen printing) and shape conformability (for example, it can be applied to curved surfaces such as tanks and hoppers). Further, the specific thickness of the support sheet is preferably 50 to 300 μm, more preferably 100 to 200 μm. In particular, by making the support sheet 20 made of a synthetic resin, it is possible to obtain the insulation of the coating base, which is essential in the application of the electrically-heatable paint 21 .

The coating thickness of the electrically heating paint 21 screen-printed on one side of the support sheet 20 is preferably 50 to 200 μm from the viewpoint of the amount of heat required for melting snow and ice.

According to screen printing, which is a means for applying the electrically heated paint 21, uniform coating thickness, arbitrary shape (design, pattern, etc.) coating, arbitrary coating thickness setting, and coating for each divided area are possible. Coating with a set film thickness is possible, and an arbitrary heat generation distribution can be set. It is possible to set the corresponding heating amount (heating distribution) according to the heat radiation amount of the thickness, position (for example, corners, etc.), and shape (for example, protrusions, etc.) of the portion to be heated.

By setting the coating film thickness, the resistance and current in the coating film can be set, so it is possible to set the power density according to the predetermined power source. That is, when using a conventional electric heater or the like, it was necessary to adjust the voltage in order to set a predetermined amount of heat generation. The power density can be set according to the battery, etc.), eliminating the need for a voltage regulator. The number of heat generating sheets 2 and the coating thickness corresponding to the area of each heat generating sheet 2 can eliminate the need for a voltage regulator.

The electrode portions 22 are formed by applying a conductive material to the portions (for example, both ends of the support sheet 20) in contact with the electrically-heating paint 21 applied to the support sheet 20. FIG. Examples of the conductive material include paste-like conductive pastes of gold, silver, copper, carbon, etc. (preferably silver in terms of electrode uniformity, handleability, etc.). It is preferable to form an electrode portion. According to the configuration in which the electrode portion 22 is formed by coating the conductive paste, there is no risk of poor contact or disconnection due to poor soldering, loosening of the screw, or rust, which are likely to occur in the electrode portion configured by soldering or screwing. Reliable energization becomes possible.

As the waterproof sheet 3 which makes the device 1 have a waterproof structure by covering both sides of the heat generating sheet 2, a synthetic resin sheet can be preferably mentioned, and the synthetic resin used is the same as the support sheet 20. General synthetic resins for forming sheets or films such as polyethylene, polycarbonate, vinyl chloride, etc. can be mentioned, among which polyethylene terephthalate (PET) is most preferable.

The specific thickness of the impermeable sheet 3 is preferably thicker than the support sheet 20 constituting the heat generating sheet 2, preferably 0.3 mm (300 μm) to 2.0 mm, more preferably 0.5 mm to 1.0 mm. 0 mm is more preferred.
It is preferable that the heat-generating sheet 2 is covered in a water-impermeable state by heat-sealing the ends of the water-impervious sheet 3 .

According to the impermeable sheet 3 configured as described above, the impermeable structure can be obtained at a low cost because it can be easily produced with a simple structure using readily available inexpensive materials.

Examples of outdoor facilities to which the device 1 of the present invention having the above configuration is applied include construction scaffolding, working scaffolding, scaffolding stairs, outdoor stairs, and roofs. By applying it to these outdoor facilities, it is no longer necessary to manually remove snow and ice every time it snows. In addition, according to the device 1 of the present invention, in the case of equipment having a simple structure such as construction scaffolding, work scaffolding, outdoor stairs, etc., it is possible not only to apply it to existing equipment by retrofitting, but also to use it. It is extremely easy to reuse later and divert to other equipment.

2 and 3 show an embodiment in which the device 1 of the present invention is installed on the back surface of a scaffolding staircase (for one step) 6 as outdoor equipment.

When laying on the outdoor equipment (scaffold stairs (one step) 6 in FIGS. 2 and 3), it is preferable to dispose the heat insulating material 7 on the side not in contact with the outdoor equipment. By arranging the heat insulating material 7, it is possible to suppress or prevent heat radiation from the surface that does not come into contact with the outdoor equipment. The heat insulating material 7 is preferably a mat material that exhibits a heat insulating function and protects the lower surface of the device 1. Examples thereof include an aluminum mat and urethane foam. can be mentioned.

2 and 3 as outdoor equipment, in the case of construction equipment whose bottom side is exposed, when working tools and various materials are used and transported, they may be damaged by hitting the bottom side of the device 1. In order to prevent this, it is preferable to dispose a cover plate member 8 made of hard synthetic resin or metal (for example, stainless steel or aluminum) on the lower surface side. Preferably, the cover plate member 8 not only protects the lower surface side of the device 1, but also has a function of preventing the device 1 from falling off from the outdoor facility.

The device 1 of the present invention preferably has a configuration in which the energization operation is controlled based on information from one or more of a snowfall sensor, an air temperature sensor, and a WEB camera installed at or near the outdoor facility. . According to this configuration, it is possible to efficiently melt snow and ice by remote control (IoT smart switch) without going to the location of the outdoor equipment. In particular, by using a commercially available smart switch or the like, ON/OFF control at many locations can be easily and inexpensively controlled remotely by radio or wire, which is excellent in convenience.

According to the snow melting/ice melting device 1 according to the present invention having the above configuration, there is no risk of damage due to stepping on, misalignment, or turning over due to aging, etc., by arranging it on the back surface of the outdoor equipment. Since positional displacement and curling do not occur, it is possible to suppress or prevent overturning and injury due to stumbling, resulting in high safety.
In addition, since the entire coated surface of the electrically heat generating paint 21 is a conductive area, the entire coated area generates heat at a substantially uniform temperature without gaps. Moreover, even if the heat generating sheet 2 is partially damaged, all parts other than the damaged part are energized. can do.
Furthermore, since screen printing is used to apply the electrically-heating paint 21 to the support sheet 20, the uniform and desired thinness can be achieved so that uniform and efficient snow-melting and ice-melting functions can be exhibited over the entire coated area. A coating surface can be easily obtained.

Furthermore, by forming the support sheet 20 and the impervious sheet 3 into sheets made of synthetic resin, it is possible to flexibly cope with an undulating surface instead of a flat surface.
In addition, the shape is not limited to the quadrangle shown in FIGS. It can be formed into a wide variety of shapes.

Although the embodiments of the snow melting and ice melting apparatus of the present invention have been described above, the present invention is not limited to the above embodiments, and other aspects can be adopted within the scope of the present invention.

In the above embodiment, the coating thickness of the electrically-heating paint 21 is uniform over the entire coating surface, but the coating thickness of the electrically-heating paint 21 is set to an arbitrary thickness according to the area of the coating surface by screen printing. By doing so, the heat distribution can be changed according to the region.
For example, by increasing the amount of heat generated by thinning the coating thickness of the heat-generating paint toward the periphery where heat is greatly dissipated and the temperature tends to drop, the heat-generating sheet is laid so that the heat-generating temperature is almost uniform over the entire coated surface. Snow melting and ice melting functions can be efficiently exhibited over the entire area.

Not only the conventional electric heating sheet but also the heat generating sheet 2 of the device 1 of the present invention, the temperature of the periphery of the sheet is lowered by heat dissipation. In the heat generating sheet 2 shown in FIG. , the temperature will drop due to heat dissipation.

Therefore, as shown in FIG. 5, regarding the coating thickness of the electrically heated paint 21, the reference numeral 21A portion is the thickest, the reference numeral 21B portion is thinner than the reference numeral 21A portion, and the reference numeral 21C portion is thinner than the reference numeral 21B portion, The portion 21D is made the thinnest. With such a configuration, the amount of heat generated increases from the center toward the periphery, so that the heat generation temperature can be substantially uniform over the entire coating surface. Therefore, the snow melting/ice melting function can be efficiently exhibited over the entire area where the heat generating sheet 2 is laid.
In addition to the contour line distribution configuration shown in FIG. 5, as a configuration for partially changing the coating thickness, a configuration in which a plurality of tile-shaped subdivided sections with different coating thicknesses are mixed to achieve pseudo uniformity is adopted. can also In this case, the power supply may be configured to collectively supply power to the whole, or may be configured to individually supply power to each subdivided section. In the case of the individual power supply configuration, if ON/OFF control is performed for each section, more detailed temperature control becomes possible.

Further, a protective sheet (not shown) may be interposed between the heat generating sheet 2 and the waterproof sheet 3 to protect the heat generating sheet 2 . The protective sheet preferably has a thickness of about 0.5 to 2.0 mm from the viewpoint of protection, and is preferably made of the same material as the support sheet 20 and the waterproof sheet 3 .
In addition, it is preferable to interpose a protective sheet between the surface of the heat-generating sheet 2 and the waterproof sheet 3 so as not to impede the snow-melting and ice-melting effects due to the heat generated by the heat-generating sheet 2 .

Furthermore, applicable outdoor facilities include outdoor water treatment facilities (preventing freezing of treated water in tanks and pipes), aggregate hoppers for shotcrete (preventing freezing of aggregates), concrete formwork in cold regions, etc. can also be mentioned.

Next, an experiment using the device 1 of the present invention having the configuration shown in FIGS. 1 to 3 will be described.

[Test conditions]
The apparatus 1 was laid on the back surface of the scaffold stairs (for one step) 6, and an experiment was conducted in an ultra-low temperature constant temperature and humidity bath.
Area of heat generating sheet: 0.144 m ² Thickness of PET sheet: 100 μm Thickness of application of heat generating paint: 50 μm Power density: 3 levels of 200 W/m ² , 300 W/m ² , and 350 W/m 2 Set temperature: ± There were three stages of 0°C, -10°C, and -20°C.
As the heating conditions, the area of the heating sheet and the coating thickness of the heat-generating paint were fixed as described above, so the above power density was obtained by adjusting the applied voltage and current value. For example, to obtain a power density of 200 W/m ² , the applied voltage is 60 V, the voltage is 0.5 A, and power (W)=voltage (V)×current (A) is 30 W. The power density can be calculated by dividing this by 0.144 m ² , which is the area of the heating sheet.
Power density = 30W/0.144m2 = ^208W / ^m2
The temperature measurement time was 30 minutes during which the exothermic temperature became constant.
Thermocouples for temperature measurement were installed on the upper surface of the scaffolding stairs (for one step) 6 and between the lower surface of the scaffolding stairs (for one step) 6 and the upper surface of the apparatus 1, respectively. The thermocouple was attached directly without being insulated.

Graphs of the measurement results under the temperature condition of −20° C. in the ultra-low temperature constant temperature and humidity chamber are shown in FIGS. 6, 7 and 8. FIG.

From FIGS. 6 to 8, it can be seen that the higher the power density, the higher the upper surface temperature of the scaffolding stairs (for one step) 6. FIG.

From the results of FIG. 6, when the power density is 200 W/m2, the temperature on the upper surface of the scaffolding stairs (for one step) 6 does not reach 0°C, and it is judged from this data that snow cannot be melted. Since the pair was not installed in an adiabatic state, it is assumed that the temperature (-20°C) in the ultra-low temperature constant temperature and humidity chamber affected it. Therefore, when the snow actually accumulates outdoors, the temperature becomes higher than under the experimental conditions due to the heat retention effect of the snow situation due to the accumulated snow, so snow melting is sufficiently possible.

Table 1 shows the maximum temperature and power density of the upper surface of the scaffolding staircase (for one step) 6 and the upper surface of the device 1 under each temperature condition of the ultra-low temperature constant temperature and humidity chamber. Graphs organized similarly are shown in FIGS. 9 and 10. FIG.

As shown in Table 1, FIG. 9, and FIG. 10, when viewed from the top of the scaffold stairs (for one step) 6, the power density is 300 W/m ² under the condition of -20° C., and the maximum temperature is 1.0. °C, which is above the boundary temperature (0 °C) at which snow and ice melt, so snow melting is possible.

Next, power consumption will be described.
Power consumption is determined by setting heat generation area (m ² ) x power density (W/m ² ) x number of stairs to be laid (n) x operating time (h). electricity charges.
Therefore, when the set heat generation area = 0.144 m ² , the power density = 300 W/m ² , and the target power to be set is 43 W (applied voltage 70 V, current value 0.6 A), it is 0.043 Kwh, and if it is operated for 12 hours , the power consumption is about 0.5 kW.

If the number of steps of the scaffold stairs to be laid is set to 10, the electricity cost will be about 5 kW = 150 yen for 12 hours of operation.
In comparison with an electric heater using AC 100V as a power supply, according to the apparatus 1 of the present invention, the electricity cost can be roughly reduced to about one-fifth.

From the above experiments, it was found that the snow/ice melting apparatus of the present invention is economical because the temperature of the heating sheet rises quickly and uniform heating can be obtained, and a sufficient heat generation temperature can be obtained at a low voltage.

1 Snow melting/melting device 2 Heat generating sheet 20 Support sheet 21 Electric heat generating paint 22 Electrode part 3 Waterproof sheet 30 Heat seal part 4 Power supply part 5 Power cable 6 Scaffold stairs (one step)
7 heat insulating material 8 cover plate material

Claims (8)

A snow melting/melting device that prevents snow accumulation/freezing, suppresses snow accumulation/freezing, or melts snow/ice by arranging it in an outdoor facility that has a flat portion, an inclined portion, or an exposed portion that is covered with snow during snowfall or freezes during extreme cold,
The snow melting/ice melting device
a heat-generating sheet formed by applying an electrically heat-generating paint to at least one side of a support sheet made of synthetic resin by screen printing;
an electrode portion electrically conductively disposed on a portion of the heat generating sheet that contacts the electrically heat generating paint;
a waterproof sheet covering both sides of the heat generating sheet in a waterproof state;
a power cable part having one end connected to the electrode part from the outside of the waterproof sheet and the other end connected to a power supply part;
consisting of
A snow-melting/ice-melting device characterized in that the snow-melting/ice-melting device is laid on the rear surface of the outdoor equipment. 2. The snow/ice melting device according to claim 1, wherein the electrically-heatable paint is based on a water-based resin and uses a carbon nanomaterial. 3. The snow melting according to claim 1 or 2, wherein the coating thickness of the electrically-heatable paint is set to an arbitrary thickness according to the area of the coating surface, thereby changing the heat generation distribution according to the area. - De-icing device. 3. The snow melting and ice melting device according to claim 1, wherein the water impermeable sheet is a sheet made of synthetic resin, and is configured to cover the heat generating sheet in a water impermeable state by heat-sealing the ends of the sheet. . 3. The snow and ice melting device according to claim 1, wherein a conductive material is applied to a portion in contact with the applied heat-generating paint to form an electrode portion. 3. The snow-melting/ice-melting device according to claim 1 or 2, wherein when the snow-melting/ice-melting device is laid on the outdoor facility, a heat insulating material is disposed on a surface that does not come into contact with the outdoor facility. 2. The snow and ice melting apparatus according to claim 1, wherein the outdoor facility is any one of construction scaffolding, working scaffolding, scaffolding stairs, outdoor stairs, and a roof. The energization operation of the snow melting/melting device is controlled based on information from any one or more of a snowfall sensor, temperature sensor, WEB camera, and IoT smart switch installed at or near the outdoor facility. The snow/ice melting device according to claim 1 or 7, characterized in that there is a

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