Distributed electric film heating system

Abstract

The present invention provides a distributed electric film heating system, which includes: an entrance electric box; electric film heating components arranged in at least two rooms, each of which includes a distribution box and a plurality of electric heating films, wherein: in each of the heating components, the input end of the distribution box is electrically connected to the output end of the entrance electric box via a first circuit, and the output end of the distribution box is electrically connected to each of the electric heating films via a second circuit to realize the power supply to each of the electric heating films, and the electric heating film is at least laid on one of the floor, wall and floor of the room, and the electric heating film converts electrical energy into far-infrared radiation or convection heat energy to emit heat. In the distributed electric film heating system provided by the present invention, an independent distribution box is arranged in each room, and each distribution box converts the alternating current diverted to the corresponding room into direct current and then provides it to the electric heating film in the room through the direct current line arranged in the room.

Description

Technical Field

[0001] The invention relates to the field of heating, in particular to a distributed electric heating film heating system. Background Art

[0002] The current heating systems on the market are generally of a total-split structure. For example, the warm air of central air conditioners comes from the external unit, and the heat source of water floor heating and radiators comes from the wall-mounted boiler. In other words, the heat of the current heating system comes from the same heat source. This heating system has at least the following defects: when the heat source fails, the entire heating system is paralyzed.

[0003] In view of this, a heating system based on electric heating film technology has been proposed and gradually promoted. The main structure of the heating system based on electric heating film includes a power supply mechanism and an electric heating film, wherein the electric heating film is directly attached to the room, and the power supply mechanism is used to energize the electric heating film to trigger the electric heating film to radiate far infrared rays, thereby heating the space in the room. In other words, the electric heating film as a heat source is separately attached to the room that needs heating, so as to achieve independent heating of the indoor space of the corresponding room.

[0004] The electric film heating system in the prior art has a power supply mechanism including a household electrical box and a unified main distribution box. The household electrical box supplies 220V AC mains power to the main distribution box, which converts the 220V AC mains power into DC power (generally 36V) and distributes it to the electric heating films distributed in each room through a DC line.

[0005] The technical problems existing in the electric heating film heating system in the prior art include at least:

[0006] 1. The DC line has a long wiring distance (i.e. from the main distribution box to the electric heating film in each room), which results in large line loss of current and increases the energy consumption of the heating system.

[0007] 2. The main distribution box distributes electricity in a unified manner, which can easily cause tripping failure due to excessive power consumption, thus causing the entire heating system to fail.

[0008] In view of the above technical problems existing in the electric heating film heating system in the prior art, it is necessary to propose an improved distributed electric heating film heating system. Summary of the invention

[0009] In view of the above technical problems existing in the electric heating film heating system in the prior art, the present invention provides a distributed electric heating film heating system, and its specific technical solution is as follows:

[0010] A distributed electric heating film heating system, comprising:

[0011] Household electrical box;

[0012] The electric heating film heating components are arranged in at least two rooms, each of which comprises a distribution box and a plurality of electric heating films, wherein:

[0013] In each of the heating components, the input end of the distribution box is electrically connected to the output end of the household power box via a first line, and the output end of the distribution box is electrically connected to each of the electric heating films via a second line to realize power supply to each of the electric heating films. The electric heating film is laid on at least one of the floor, wall and floor of the room, and the electric heating film converts electrical energy into far-infrared radiation or convection heat energy to emit heat.

[0014] In some embodiments, each of the heating components also includes a thermostat electrically connected to the distribution box.

[0015] In some embodiments, the electric heating film includes a far-infrared heating film, which has a first surface and a second surface corresponding to the first surface, the first surface is sequentially bonded with a first hot melt adhesive layer, a first PET film layer and a first fiber cloth layer, the second surface is sequentially bonded with a second hot melt adhesive layer, a second PET film layer and a second fiber cloth layer, and the first copper foil strips and the second copper foil strips are bonded in pairs between the two side edges of the first hot melt adhesive layer and the two side edges of the first PET film layer.

[0016] In some embodiments, the far-infrared heating film includes one or more of a wet-process carbon fiber heating film, a chopped carbon fiber heating film, a graphene heating film, and a graphene oxide heating film.

[0017] In some embodiments, the distribution box includes a box body and a transformer, wherein:

[0018] The box body comprises:

[0019] Base plate;

[0020] A left side plate and a right side plate are symmetrically arranged on the bottom plate, a plurality of left side heat dissipation fins perpendicular to the left side plate are arranged on the outer wall of the left side plate, a plurality of right side heat dissipation fins perpendicular to the right side plate are arranged on the outer wall of the right side plate, the front ends of the left side plate and the right side plate are both vertically flipped outward to form a front end connecting lip plate, and the rear ends of the left side plate and the right side plate are both vertically flipped outward to form a rear end connecting lip plate;

[0021] A front end plate, the two ends of which are respectively mounted on the front end connecting lips of the left side plate and the right side plate, and the front end plate is provided with a circuit through hole;

[0022] A rear end plate, the two ends of which are respectively attached to the rear end connecting lip plates of the left side plate and the right side plate;

[0023] The transformer is accommodated in the box, the input end of the transformer is electrically connected to the output end of the household power box via the first line passing through the line through hole, and the output end of the transformer is electrically connected to each of the electric heating films via the second line passing through the line through hole to realize power supply to each of the electric heating films.

[0024] In some embodiments, the distribution box also includes a cover plate covering the box body.

[0025] In some embodiments, the circuit through hole includes a first circuit through hole and a second circuit through hole, the output end of the transformer is electrically connected to the output end of the household electrical box via the first circuit passing through the first circuit through hole, and the output end of the transformer is electrically connected to each of the electric heating films via the second circuit passing through the second circuit through hole to realize power supply to each of the electric heating films.

[0026] In some embodiments, a mounting bracket is disposed at the bottom of the base plate.

[0027] In some embodiments, the left heat dissipation fins are integrally formed with the left plate, and the right heat dissipation fins are integrally formed with the right plate.

[0028] In some embodiments, the left side panel and the right side panel are detachably connected to the bottom panel via a first screw; the two ends of the front end panel are detachably attached to the front end connecting lip panels of the left side panel and the right side panel via a second screw; the two ends of the rear end panel are detachably attached to the rear end connecting lip panels of the left side panel and the right side panel via a third screw.

[0029] Compared with the electric heating film heating system in the art, the distributed electric heating film heating system provided by the present invention has an independent distribution box in each room. Each distribution box converts the AC power diverted to the corresponding room into DC power and then supplies it to the electric heating film in the room through the DC line arranged in the room. In this way, at least the following technical effects can be produced:

[0030] 1. The routing distance of the DC line is significantly shortened, the line loss of the current is smaller, and the energy consumption of the heating system is reduced.

[0031] 2. Each distribution box only converts the voltage of the AC power diverted to the corresponding room, avoiding tripping failure caused by excessive power.

[0032] 3. Even if a distribution box fails, it will only affect the heating in the corresponding room, and will not cause the entire heating system to fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for practical use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them,

[0034] Figure 1 A schematic structural diagram of a distributed electric film heating system provided in the first embodiment of the present invention;

[0035] Figure 2 A schematic diagram of the planar structure of an electric heating film provided in a second embodiment of the present invention;

[0036] Figure 3 A schematic cross-sectional view of an electric heating film provided in a second embodiment of the present invention;

[0037] Figure 4 A schematic diagram of the structure of a distribution box provided in a third embodiment of the present invention;

[0038] Figure 5 A schematic diagram of an electric heating film top heating installation structure provided in a fourth embodiment of the present invention;

[0039] Figure 6 A schematic diagram of a partial structure of an electric heating film top heating installation structure provided in a fourth embodiment of the present invention;

[0040] Figure 7 A schematic structural diagram of a fastening mechanism in an electric heating film top heating installation structure provided in a fourth embodiment of the present invention;

[0041] Figure 8 A schematic diagram of a partial structure of an electric heating film wall heating installation structure provided in a fifth embodiment of the present invention;

[0042] Fig. 9 A schematic diagram of a partial structure of an electric heating film wall heating installation structure provided in a fifth embodiment of the present invention;

[0043] Fig.10 A schematic diagram of a partial structure of an electric heating film floor heating installation structure provided in a sixth embodiment of the present invention;

[0044] Fig.11 A schematic diagram of the local structure of the electric heating film floor heating installation structure provided in the sixth embodiment of the present invention. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] Introduction of Distributed Electric Film Heating System

[0047] The electric film heating system in the prior art has a power supply mechanism including an entry box and a unified main distribution box. The entry box supplies 220V AC mains electricity to the main distribution box, which converts the 220V AC mains electricity into DC (generally 36V) and distributes it to the electric heating films distributed in each room through a DC line. The technical problems existing in the electric film heating system in the prior art include at least: 1. The DC line has a long routing distance (i.e., from the main distribution box to the electric heating films in each room), resulting in large line losses of current and increasing the energy consumption of the heating system. 2. The main distribution box distributes electricity in a unified manner, and the transformer inside it is prone to tripping failure due to excessive electricity, thereby causing the overall failure of the heating system.

[0048] In order to solve the technical problems existing in the electric heating film heating system in the prior art, the first embodiment of the present invention provides a distributed electric heating film heating system, which realizes heating through electric heating films laid on the floor, walls and ground of the room.

[0049] like Figure 1 As shown, the distributed electrothermal film heating system includes an entry electrical box 200 and electrothermal film heating components arranged in at least two rooms. Figure 1 The embodiment includes four rooms, namely room A, room B, room C and room D, and each of the four rooms is provided with a set of electric film heating components. Of course, in other embodiments, a corresponding number of electric film heating components can be provided according to other numbers of rooms.

[0050] Each set of electric heating film heating components includes a distribution box 300 and a plurality of electric heating films 100, wherein:

[0051] In each electric film heating component, the input end of the distribution box 300 is electrically connected to the output end of the household electrical box 200 via the first line 500 (AC line), and the output end of the distribution box 300 is electrically connected to each electric heating film 100 via the second line 600 (DC line) to realize the power supply of each electric heating film 100. The electric heating film 100 is laid on at least one of the floor, wall and floor of the room. The electric heating film 100 converts electrical energy into far-infrared radiation or convection heat energy to emit heat.

[0052] Optionally, the working principle of the distributed electric film heating system in this embodiment is as follows:

[0053] The household electrical box 200 supplies 220V AC power (mains power) supplied by the external power grid to the distribution boxes 300 of each electric film heating component via the first line 500 .

[0054] The distribution box 300 converts 220V AC power into 36V DC power, and the corresponding second circuit 600 transmits the 36V DC power to the corresponding electrothermal films 100 .

[0055] After being powered on, the electric heating film 100 radiates far infrared rays with a wavelength ranging from 8 to 15 μm, thereby achieving heating.

[0056] Continue to refer Figure 1 As shown, optionally, in the distributed electric heating film heating system in this embodiment, each heating component further includes a thermostat 400 electrically connected to the distribution box 300. The thermostat 400 can adjust the heating power of the electric heating film 100, thereby achieving temperature adjustment in the room.

[0057] It can be seen that in the electric film heating system provided by the present embodiment, an independent distribution box is arranged in each room, and each distribution box converts the alternating current diverted to the corresponding room into direct current and then provides it to the electric heating film in the room through the second line 600 (direct current line) arranged in the room. In this way, at least the following technical effects can be produced: 1. The routing distance of the direct current line is significantly shortened, the line loss of the current is small, and the energy consumption of the heating system is reduced. 2. Each distribution box only performs voltage conversion on the alternating current diverted to the corresponding room, avoiding the tripping failure of the transformer therein due to excessive power. 3. Even if a distribution box fails, it only affects the heating in the corresponding room, and will not cause the failure of the entire heating system.

[0058] Introduction to electric heating film

[0059] The second embodiment of the present invention provides a specific electric heating film structure, which can convert electrical energy into far-infrared radiation or convection heat energy after being powered on to achieve heating of the surrounding environment. The electric heating film is very suitable for use in the distributed electric heating film heating system in the first embodiment of the present invention.

[0060] For details, please continue to refer to Figure 2 and Figure 3 As shown, the electric heating film 100 in this embodiment includes a far-infrared heating film 101, and the far-infrared heating film 101 has a first surface and a second surface corresponding to the first surface, and a first hot melt adhesive layer 102, a first PET film layer 104 and a first fiber cloth layer 106 are sequentially adhered to the first surface, and a second hot melt adhesive layer 103, a second PET film layer 105 and a second fiber cloth layer 107 are sequentially adhered to the second surface, and a first copper foil strip 108 and a second copper foil strip 109 are adhered in pairs between the two side edges of the first hot melt adhesive layer 102 and the two side edges of the first PET film layer 104.

[0061] The first copper foil strip 108 and the second copper foil strip 109 constitute the power connection electrode of the electric heating film 100. Figure 1The first copper foil strip 108 and the second copper foil strip 109 of the electric heating film 100 are connected to the distribution box 300 via the second line 600, so that the electric heating film 100 can be powered on. After the far-infrared heating film 101 is powered on, it can convert the electrical energy into far-infrared radiation or convection heat energy to achieve heating of the surrounding environment.

[0062] The first hot melt adhesive layer 102 and the second hot melt adhesive layer 103 are made of known hot melt adhesives, such as EVA, PUR, etc.

[0063] The far-infrared heating film 101 adopts various known types of far-infrared heating films, such as wet carbon fiber heating film, chopped carbon fiber heating film, graphene heating film, graphene oxide heating film, etc. In specific implementation, one of the above-mentioned film materials can be used as the far-infrared heating film 101, or two or more film materials can be stacked as the far-infrared heating film 101.

[0064] After the far-infrared heating film 101 is powered on, it can radiate far-infrared rays with a wavelength range of 8 to 15 μm (called "life rays"). After being absorbed by the human body, the far-infrared rays of this wavelength can promote mitochondrial metabolism in the cytoplasm, improve blood microcirculation, indirectly reduce inflammation and relieve pain, and improve the regulatory ability of the neurohumoral system. Therefore, when the human body is bathed in this light, it can not only feel warm, but also be healthier. Because far-infrared rays have the function of activating human cells, they can promote mitochondrial metabolism in the cytoplasm, improve blood microcirculation, indirectly reduce inflammation and relieve pain, and improve the regulatory ability of the neurohumoral system.

[0065] The overall thickness of the electric heating film 100 in this embodiment is only 0.4 mm, which is very suitable for being directly attached to walls, floors and floors as a film material.

[0066] In some specific embodiments, the thickness of the heating functional film 101 is 1-3 μm, the thickness of the first hot melt adhesive layer 102 and the second hot melt adhesive layer 103 is 8-12 μm, the thickness of the first PET film layer 104 and the second PET film layer 105 is 85-90 μm, the thickness of the first fiber cloth layer 106 and the second fiber cloth layer 107 is 50-70 μm, and the thickness of the first copper foil strip 108 and the second copper foil strip 109 is 15-25 μm. The width of the first copper foil strip 108 and the second copper foil strip 109 is 20 mm, and the distance between the first copper foil strip 108 and the second copper foil strip 109 is 500 mm.

[0067] In some preferred embodiments, the electric heating film 100 is densely covered with circular holes penetrating the electric heating film 100. Since the electric heating film 100 is densely covered with circular holes, in some specific embodiments, the total area of ​​the circular holes reaches about 80% of the total area of ​​the electric heating film 100.

[0068] This embodiment also provides a method for preparing the above-mentioned electric heating film 100, which comprises the following steps:

[0069] (1) Apply glue uniformly on the first surface and the second surface of the heat-generating functional film 101 to form a first hot-melt adhesive layer 102 and a second hot-melt adhesive layer 103. Optionally, the glue application temperature is 130-160°C.

[0070] (2) The first copper foil strip 108 and the second copper foil strip 109 are respectively attached to the two side edges of the first hot melt adhesive layer 102 .

[0071] (3) The first PET film layer 104 and the second PET film layer 105 are respectively attached to the first hot melt adhesive layer 102 and the second hot melt adhesive layer 103 .

[0072] (4) The first fiber cloth layer 106 and the second fiber cloth layer 107 are respectively hot pressed onto the first PET film layer 104 and the second PET film layer 105. Optionally, the hot pressing temperature is 200-270°C.

[0073] After the electrothermal film 100 is formed, holes are densely punched on the electrothermal film 100 to form circular holes that are densely distributed on the electrothermal film 100 and penetrate the electrothermal film 100 .

[0074] Introduction to distribution box

[0075] As described in the first embodiment, in the distributed electric heating film heating system provided therein, an independent distribution box is provided in each room. The ordinary distribution boxes on the market are large in size, and the transformers therein have high power, and need to be equipped with high-power cooling fans. Considering the factors of space and noise, the traditional distribution boxes are difficult to meet the practical requirements of the distributed electric heating film heating system described in the first embodiment.

[0076] In view of this, the third embodiment of the present invention provides a distribution box 300 with a compact structure and without using a fan for heat dissipation, which is very suitable for application in the distributed electric film heating system in the first embodiment of the present invention.

[0077] Specifically, Figure 4 As shown, the distribution box 300 provided in this embodiment includes a box body and a transformer 307 .

[0078] The box body includes a bottom plate (not shown), a left side plate 301, a right side plate 302, a front end plate 305 and a rear end plate 306, wherein: the left side plate 301 and the right side plate 302 are symmetrically arranged on the two side edges of the bottom plate, a plurality of left side cooling fins 303 perpendicular to the left side plate 301 are arranged on the outer wall of the left side plate 301, and a plurality of right side cooling fins 304 perpendicular to the right side plate 302 are arranged on the outer wall of the right side plate 302.

[0079] The front ends of the left plate 301 and the right plate 302 are both turned vertically outward to form a front connecting lip plate, and the rear ends of the left plate 301 and the right plate 302 are both turned vertically outward to form a rear connecting lip plate.

[0080] The two ends of the front end plate 305 are respectively mounted on the front end connecting lip plates of the left side plate 301 and the right side plate 302 , and a circuit through hole is provided on the front end plate 305 .

[0081] The two ends of the rear end plate 306 are respectively attached to the rear end connecting lips of the left side plate 301 and the right side plate 302 .

[0082] The transformer 307 is housed in the box, and the input end of the transformer 307 is electrically connected to the output end of the external household electrical box via a first line passing through the line through hole, and the output end of the transformer 307 is electrically connected to the external electric heating film via a second line passing through the line through hole to realize power supply to the electric heating film.

[0083] Combined with reference Figure 1 The household electrical box 200 supplies 220V AC power (mains power) supplied by the external power grid to the transformer 307 in the distribution box 300 via the first line 500. The transformer 307 converts the 220V AC power into 36V DC power, and transmits the 36V DC power to the corresponding electric heating film 100 via the second line 600.

[0084] Since the left side heat dissipation fins 303 and the right side heat dissipation fins 304 are respectively provided on the outer walls of the left side plate 301 and the right side plate 302 of the distribution box 300, the heat generated by the transformer 307 can be quickly dissipated from the box to prevent the transformer 307 from being burned.

[0085] Optionally, in order to facilitate preparation and reduce production costs, the left heat dissipation fin 303 is integrally formed with the left plate 301 , and the right heat dissipation fin 304 is integrally formed with the right plate 302 .

[0086] Optionally, in order to protect components such as the transformer 307 in the box, the distribution box 300 in this embodiment also includes a cover plate (not shown) covering the box.

[0087] In order to facilitate the wiring of the first circuit and the second circuit, optionally, the circuit through hole includes a first circuit through hole 3051 and a second circuit through hole 3052, and the output end of the transformer 307 is electrically connected to the output end of the household electrical box 200 via the first circuit 500 that runs through the first circuit through hole 3051, and the output end of the transformer 307 is electrically connected to the electric heating film 100 via the second circuit 600 that runs through the second circuit through hole 3052 to realize the power supply to the electric heating film 100.

[0088] Considering the space saving and aesthetics, the distribution box 300 is generally hidden and installed on the keel frame of the ceiling of the room. Therefore, in order to realize the fixed connection between the distribution box 300 and the keel frame, a mounting bracket 308 matching the keel frame is provided on the bottom plate of the box body.

[0089] Optionally, in order to realize the assembly and maintenance of the distribution box 300, the box body of the distribution box 30 is set to a detachable structure. Specifically, the left side plate 301 and the right side plate 302 are detachably connected to the bottom plate by a first screw. The two ends of the front end plate 305 are detachably attached to the front end connecting lip plates of the left side plate 301 and the right side plate 302 by a second screw. The two ends of the rear end plate 306 are detachably attached to the rear end connecting lip plates of the left side plate 301 and the right side plate 302 by a third screw.

[0090] In addition, in order to further improve the heat dissipation performance of the box, optionally, the box body and cover plate of the distribution box 30 are both made of aluminum sheet metal.

[0091] Since the distribution box in this embodiment only performs voltage conversion on the AC power diverted to the corresponding room, it only needs to be equipped with a small power transformer. Therefore, the size of the distribution box is relatively small. For example, in one embodiment, the length, width and height of the distribution box are only 300 mm, 240 mm and 120 mm.

[0092] Introduction to the installation method of electric heating film

[0093] As described in the first embodiment, in the distributed electric heating film heating system provided therein, the electric heating film 100 is laid on the wall, floor or floor of the room.

[0094] Next, we will introduce the specific installation methods of the electric heating film 100 on the floor, wall and floor through three embodiments.

[0095] Electric heating film ceiling heating installation structure

[0096] like Figures 5 to 7 As shown, the fourth embodiment of the present invention provides an electric heating film ceiling heating installation structure 700, which includes a floor 701 and an insulation layer 702, a gypsum board layer 703, an electric heating film 100 and a coating layer 705 arranged on the floor from the inside to the outside, wherein:

[0097] The gypsum board layer 703 is fixedly connected to the floor slab 701 via fasteners 706 and an installation gap is reserved between the gypsum board layer 703 and the floor slab 701 . The insulation layer 702 is filled in the installation gap. The electric heating film 100 is bonded to the gypsum board layer 703 via adhesive. The coating layer 705 is coated on the electric heating film 100 .

[0098] The insulation layer 702 generally uses insulation cotton, which can block and insulate the heat radiation of the electric heating film 100 and reduce the heat lost through the floor 701. The gypsum board layer 703 and the paint layer 705 can be made of various known suitable building materials, and the present invention does not specifically limit them.

[0099] The electric heating film 100 is electrically connected to the external distribution box via the line 600 (i.e., the second line 600 in the first embodiment). The electric heating film 100 directly adopts the electric heating film 100 provided in the second embodiment of the present invention. Since the specific structure and preparation method of the electric heating film 100 have been described in detail above, they will not be repeated here.

[0100] Optional, such as Figure 7 As shown, the fastener 706 includes a U-shaped hanger 7061, a light steel keel 7062, an expansion screw 7063, a first screw 7064 and a second screw 7065, wherein: the U-shaped hanger 7061 is fixedly connected to the floor slab 701 via the expansion screw 7063, the light steel keel 7062 is fixedly connected to the U-shaped hanger 7061 via the first screw 7064, and the gypsum board layer 703 is fixedly connected to the light steel keel 7062 via the second screw 7065.

[0101] Optionally, in order to facilitate the routing of line 600, as Figure 6 As shown, the electric heating film ceiling heating installation structure 70 in this embodiment also includes a PVC wire pipe 707, and the circuit 600 is installed in the PVC wire pipe 707.

[0102] Electric film wall heating installation structure

[0103] like Figures 8 to 9 As shown, the fifth embodiment of the present invention provides an electric heating film wall heating installation structure 800, which includes a wall 801 and an insulation layer 802, a gypsum board layer 803, an electric heating film 100 and a coating layer 805 arranged on the wall 801 from the inside to the outside, wherein:

[0104] The gypsum board layer 803 is fixedly connected to the wall 801 via fasteners 806 and maintains an installation gap with the wall 801 . The insulation layer 802 is filled in the installation gap. The electric heating film 100 is bonded to the gypsum board layer 803 via adhesive. The coating layer 805 is coated on the electric heating film 100 .

[0105] The insulation layer 802 generally uses insulation cotton, which can block and insulate the heat radiation of the electric heating film 100 and reduce the heat lost to the outside through the wall 801. The gypsum board layer 803 and the paint layer 705 can be made of various known suitable building materials, and the present invention does not specifically limit them.

[0106] The electric heating film 100 is electrically connected to the external distribution box via the line 600 (i.e., the second line 600 in the first embodiment). Similarly, the electric heating film 100 directly adopts the electric heating film 100 provided in the second embodiment of the present invention. Since the specific structure and preparation method of the electric heating film 100 have been described in detail above, they will not be repeated here.

[0107] Optional, such as Fig. 9 As shown, the fastener 806 includes a wooden keel 8061 and an expansion screw 8062. The first side surface of the wooden keel 8061 is attached to the wall 801, and the second side surface of the wooden keel 801 is attached to the gypsum board layer 803. The expansion end of the expansion screw 8062 passes through the gypsum board layer 803 and the wooden keel 801 and is inserted into the wall 801 and fixed.

[0108] Similarly, optionally, in order to facilitate the routing of the line 600, the electric heating film wall heating installation structure 80 in this embodiment may also include a PVC wire pipe, and the line 600 is installed in the PVC wire pipe.

[0109] Electric film floor heating installation structure

[0110] like Figure 10 to Figure 11 As shown, the sixth embodiment of the present invention provides an electric heating film floor heating installation structure 90, which includes a floor 901 and an insulation layer 902, an electric heating film 100, a moisture-proof layer 904 and a floor arranged on the floor 901 from the inside to the outside, wherein the insulation layer 902 is bonded to the floor 901 by an adhesive, the electric heating film 100 is bonded to the insulation layer 902 by an adhesive, the moisture-proof layer 904 is bonded to the electric heating film 100 by an adhesive, and the floor is laid on the moisture-proof layer.

[0111] The heat-insulating layer 902 is generally made of a heat-insulating board, which can block and insulate the heat radiation of the electric heating film 100 and reduce the heat lost to the outside through the floor 901. The moisture-proof layer 904 can provide moisture-proof protection for the electric heating film 100.

[0112] The electric heating film 100 is electrically connected to the external distribution box via the line 600 (i.e., the second line 600 in the first embodiment). Similarly, the electric heating film 100 directly adopts the electric heating film 100 provided in the second embodiment of the present invention. Since the specific structure and preparation method of the electric heating film 100 have been described in detail above, they will not be repeated here.

[0113] Similarly, optionally, in order to facilitate the routing of the line 600, the electric heating film floor heating installation structure 90 in this embodiment may also include a PVC wire pipe, and the line 600 is installed in the PVC wire pipe.

[0114] The present invention has been described in sufficient detail with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present invention should fall within the scope of protection of the present invention. The scope of protection claimed by the present invention is defined by the claims, rather than by the above description in the embodiments.

Claims

1. A distributed electric film heating system, characterized in that: It includes: Household electrical box; The electric heating film heating components are arranged in at least two rooms, each of which comprises a distribution box and a plurality of electric heating films, wherein: In each of the heating components, the input end of the distribution box is electrically connected to the output end of the household power box via a first line, and the output end of the distribution box is electrically connected to each of the electric heating films via a second line to realize power supply to each of the electric heating films, and the electric heating film is laid on at least one of the floor, wall and floor of the room, and the electric heating film converts electrical energy into far-infrared radiation or convection heat energy to emit heat; The distribution box includes a box body and a transformer, wherein: The box body comprises: Base plate; A left side plate and a right side plate are symmetrically arranged on the bottom plate, a plurality of left side heat dissipation fins perpendicular to the left side plate are arranged on the outer wall of the left side plate, a plurality of right side heat dissipation fins perpendicular to the right side plate are arranged on the outer wall of the right side plate, the front ends of the left side plate and the right side plate are both vertically turned outward to form a front end connecting lip plate, and the rear ends of the left side plate and the right side plate are both vertically turned outward to form a rear end connecting lip plate; the left side heat dissipation fin is integrally formed with the left side plate, and the right side heat dissipation fin is integrally formed with the right side plate; A front end plate, the two ends of which are respectively mounted on the front end connecting lips of the left side plate and the right side plate, and the front end plate is provided with a circuit through hole; A rear end plate, the two ends of which are respectively attached to the rear end connecting lip plates of the left side plate and the right side plate; The transformer is accommodated in the box, the input end of the transformer is electrically connected to the output end of the household power box via the first line passing through the line through hole, and the output end of the transformer is electrically connected to each of the electric heating films via the second line passing through the line through hole to realize power supply to each of the electric heating films; The first line is an AC line, and the second line is a DC line.

2. The distributed electric film heating system according to claim 1, characterized in that: Each of the heating components also includes a temperature controller electrically connected to the distribution box.

3. The distributed electric film heating system according to claim 1, characterized in that: The electric heating film includes a far-infrared heating film, which has a first surface and a second surface corresponding to the first surface, wherein a first hot-melt adhesive layer, a first PET film layer and a first fiber cloth layer are sequentially adhered to the first surface, and a second hot-melt adhesive layer, a second PET film layer and a second fiber cloth layer are sequentially adhered to the second surface, and first copper foil strips and second copper foil strips are adhered in pairs between the two side edges of the first hot-melt adhesive layer and the two side edges of the first PET film layer.

4. The distributed electric film heating system according to claim 3, characterized in that: The far-infrared heating film includes one or more of a wet carbon fiber heating film, a chopped carbon fiber heating film, a graphene heating film, and a graphene oxide heating film.

5. The distributed electric film heating system according to claim 1, characterized in that: The distribution box also includes a cover plate covering the box body.

6. The distributed electric film heating system according to claim 1, characterized in that: The circuit through hole includes a first circuit through hole and a second circuit through hole. The output end of the transformer is electrically connected to the output end of the household electrical box via the first circuit passing through the first circuit through hole. The output end of the transformer is electrically connected to each of the electric heating films via the second circuit passing through the second circuit through hole to realize power supply to each of the electric heating films.

7. The distributed electric film heating system according to claim 1, characterized in that: A mounting bracket is arranged at the bottom of the base plate.

8. The distributed electric film heating system according to claim 1, characterized in that: The left side plate and the right side plate are detachably connected to the bottom plate via first screws; The two ends of the front end plate are detachably attached to the front end connecting lip plates of the left side plate and the right side plate respectively through second screws; Both ends of the rear end plate are detachably attached to the rear end connecting lip plates of the left side plate and the right side plate through third screws respectively.

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