Constant power heating mat

Abstract

The utility model discloses a constant power heating mat, including heating mat body, constant power heating unit and control unit, and heating mat body is composed of the laying layer and insulating layer who sets up from the lower to the upper laminated, and constant power heating unit includes at least one heating wire, and heating wire is along the serpentine path of preset and is arranged between laying layer and insulating layer, and is provided with fixed structure between laying layer and heating wire, and one end of heating wire is electrically connected with the lead wire for connecting external power supply, and control unit is electrically connected with lead wire, the utility model discloses through the integration of structure, and the heating mat of product delivery is finished product, only needs to be laid in the floor under the expansion of it, saves the step of on -the -spot assembly heating element, realizes just to use, and the overall thermal resistance of heating wire is small, and the heat is directly transmitted upward, and the heating mat can make the ground reach comfortable temperature quickly, avoids the energy loss in the traditional floor heating preheating process.

Description

Technical Field

[0001] This utility model relates to the field of electric heating technology, specifically to a constant power heating mat. Background Technology

[0002] Radiant floor heating systems are widely used in modern buildings due to their advantages such as comfort, health benefits, and space-saving design. Electric floor heating, as an important branch of this system, has evolved through stages such as heating cables and electric heating films.

[0003] Traditional electric underfloor heating systems typically need to be embedded within the building structure. Construction involves laying an insulation layer, installing heating elements, backfilling with a cement mortar heat storage layer, and finally laying the floor covering. This process is complex, requires highly skilled installers, and involves waiting for the cement to cure, resulting in a long overall construction period. Furthermore, due to the thick cement heat storage layer, the system needs to heat the cement before transferring heat to the room, with preheating times often lasting several hours. This fails to meet immediate heating needs, necessitating the design of a constant-power heating system to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a constant power heating mat to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A constant power heating mat includes a heating mat body, a constant power heating unit, and a control unit. The heating mat body is composed of a laying layer and an insulation layer stacked from bottom to top. The constant power heating unit includes at least one heating wire, which is arranged along a preset meandering path between the paving layer and the insulation layer. A fixing structure is provided between the paving layer and the heating wire. One end of the heating wire is electrically connected to a lead wire for connecting to an external power source. The control unit is electrically connected to the lead wire.

[0006] Furthermore, the insulating layer includes a PE insulating film layer covering the top of the heating wire and a plurality of metal foil reflective strips disposed within the PE insulating film layer, wherein the plurality of metal foil reflective strips correspond to the heating wire.

[0007] Furthermore, the paving layer is a high-temperature resistant glass fiber mesh cloth, which is used for long-term use at high temperatures of 200°C.

[0008] Furthermore, the fixing structure includes multiple high-temperature resistant double-sided adhesive tapes, which are spliced ​​together in a cross shape, and are respectively located at the top and bottom of the paving layer.

[0009] Furthermore, a hot and cold connector is provided between the heating wire and the lead wire, and the hot and cold connector is made using an ultrasonic welding process.

[0010] Furthermore, the control unit includes a control panel with adjustment buttons and a temperature display, and multiple temperature sensors disposed within the paving layer, the temperature sensors being electrically connected to the control unit.

[0011] Furthermore, the heating wire, from the inside out, comprises a heating core made of copper-nickel alloy wire stranded together, a fluoroplastic insulation layer sleeved around the heating core, a metal shielding layer disposed outside the fluoroplastic insulation layer, and a fluoroplastic sheath layer sleeved around the fluoroplastic insulation layer.

[0012] Furthermore, the metal shielding layer is a tin-plated copper wire braided layer, which is located within the fluoroplastic sheath layer and integrally formed.

[0013] In the above technical solution, the constant power heating mat provided by this utility model has the following beneficial effects: By integrating the structure, the heating mat is a finished product shipped directly from the factory. Simply unfold it and lay it under the floor, eliminating the need for on-site assembly of heating elements. It is ready to use immediately after installation. The heating wire has low overall thermal resistance, allowing heat to be transferred directly upwards. The heating mat can quickly bring the floor to a comfortable temperature, avoiding the energy loss during the preheating process of traditional underfloor heating. Through the design of the installation layer, insulation layer, and fixing structure, as well as the wiring design and multi-layer protection of the heating wire structure, it ensures uniform heat distribution and long-term electrical safety. The overall thickness is ultra-thin and flexible, with almost no impact on the indoor ceiling height, and can adapt to slight unevenness of the ground. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the heating mat structure provided in an embodiment of the constant power heating mat of this utility model.

[0016] Figure 2 This is a schematic diagram of the paving layer structure provided for an embodiment of a constant power heating mat according to this utility model.

[0017] Figure 3 This is a schematic diagram of the control unit structure provided in an embodiment of a constant power heating mat according to the present invention.

[0018] Figure 4This is a schematic diagram of the heating wire structure provided in an embodiment of a constant power heating mat according to this utility model.

[0019] 1. Heating mat body; 2. Constant power heating unit; 3. Control unit; 4. Laying layer; 5. Insulation layer; 6. Heating wire; 7. Fixing structure; 8. Lead wire; 9. PE insulation film layer; 10. Metal foil reflective strip; 11. High temperature resistant double-sided tape; 12. Heating core; 13. Fluoroplastic insulation layer; 14. Metal shielding layer; 15. Fluoroplastic sheath layer; 16. Hot and cold joint. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-4 As shown in the figure, this utility model provides a constant power heating mat.

[0022] It includes a heating mat body 1, a constant power heating unit 2 and a control unit 3. The heating mat body 1 is composed of a laying layer 4 and an insulation layer 5 stacked from bottom to top. The constant power heating unit 2 includes at least one heating wire 6, which is arranged along a preset meandering path between the paving layer 4 and the insulation layer 5. A fixing structure 7 is provided between the paving layer 4 and the heating wire 6. One end of the heating wire 6 is electrically connected to a lead wire 8 for connecting to an external power source. The control unit 3 is electrically connected to the lead wire 8.

[0023] Reference Figure 1 In this embodiment, the insulation layer 5 includes a PE insulating film layer 9 covering the top of the heating wire 6 and multiple metal foil reflective strips 10 disposed within the PE insulating film layer 9, with the multiple metal foil reflective strips 10 corresponding to the heating wire 6. The PE insulating film layer 9 has good toughness, tensile strength, and wear resistance, which can protect the relatively fragile metal foil reflective strips and heating wire below. During installation and use, it prevents scratches, punctures, or wear from sharp corners or uneven areas of the floor decoration material, ensuring the long-term integrity of the product structure. It also has a certain degree of moisture-proof and water vapor-blocking performance. The metal foil reflective strips 10 can efficiently reflect radiated heat energy back, allowing the heating wire 6 to heat up faster. After heating up, most of the heat is forced towards the ground, reducing heat loss and thus significantly improving heating efficiency and achieving energy-saving effects.

[0024] Reference Figure 2In this embodiment, the laying layer 4 is a high-temperature resistant fiberglass mesh fabric, designed for long-term use at 200°C. Fiberglass itself is an inorganic non-metallic material, exhibiting stable performance under long-term operating conditions at 200°C without melting, deforming, or shrinking. This ensures the heating pad maintains a solid and reliable structural foundation during long-term, repeated heating cycles. The mesh structure provides a precise positioning reference for the S-shaped, meandering laying of the heating wires 6. Its rigidity is sufficient to resist stress generated during transportation, curling, and laying, preventing the heating wire paths from becoming disordered.

[0025] Reference Figure 2 In this embodiment, the fixing structure 7 includes multiple high-temperature resistant double-sided adhesive tapes 11, which are spliced ​​together in a cross shape. These tapes are located at the top and bottom of the laying layer 4. The adhesive used in the high-temperature resistant double-sided adhesive tapes 11 is typically silicone, capable of withstanding temperatures of 200°C and above for extended periods without failure. This ensures that the heating wire will not detach or shift due to tape failure throughout its entire lifespan. The cross-shaped bonding method acts like a grid-like restraint for the heating wire, ensuring that regardless of the direction of stress the heating wire 6 experiences, it is constrained by tape perpendicular to or intersecting with it.

[0026] Reference Figure 2 In this embodiment, a hot-cold joint 16 is provided between the heating wire 6 and the lead wire 8. The hot-cold joint 16 is made using ultrasonic welding. Ultrasonic welding does not melt metal. It uses high-frequency vibration energy to break down the oxide layer on the metal surface under pressure, allowing the atoms of the two metals to diffuse and penetrate each other in the solid state, forming a pure metallurgical bond. The joint formed in this way has a resistance almost identical to that of the raw material, fundamentally eliminating the risk of local overheating caused by excessive contact resistance.

[0027] Reference Figure 3 In this embodiment, the control unit 3 includes a control panel with adjustment buttons and a temperature display, and multiple temperature sensors disposed within the paving layer 4. The temperature sensors are electrically connected to the control unit 3. After the user sets the desired temperature via the adjustment buttons, the control unit 3 will precisely control the current flow based on feedback from the temperature sensors and a built-in algorithm to maintain the surface temperature of the heating pad within the set range. The control panel and temperature display constitute an intuitive human-machine interface.

[0028] Reference Figure 4In this embodiment, the heating wire 6, from the inside out, includes a heating core 12 made of copper-nickel alloy wire stranded together, a fluoroplastic insulation layer 13 surrounding the heating core 12, a metal shielding layer 14 disposed outside the fluoroplastic insulation layer 13, and a fluoroplastic sheath layer 15 surrounding the fluoroplastic insulation layer 13. The metal shielding layer 14 is a tin-plated copper wire braided layer, located inside the fluoroplastic sheath layer 15 and integrally formed. The heating core 12 made of copper-nickel alloy wire stranded together can maintain a stable resistance value at high temperatures, thereby ensuring constant heating power. Fluoroplastic is a top-grade insulating material with a long-term operating temperature of up to 200°C, perfectly matching the working conditions of the heating core, and will not melt or age due to high temperatures. The metal braided layer can form a Faraday cage, effectively absorbing and leaking away most of the electromagnetic radiation, making the electromagnetic radiation intensity of the heating pad far below international safety standards, eliminating users' concerns about health effects.

[0029] Working principle: When using, first determine the size of the heating mat body 1 according to the room size. Multiple heating mat bodies 1 can be used in parallel. Lay the heating mat body 1 flat on a flat ground, so that the laying layer 4 is unfolded and fits the ground. The heating wire 6 is laid out along the winding path, and the lead wire 8 is connected to the external power supply. Then, cover it with the floor for decoration and fixation. The control unit 3 is activated for stable control, so that the heating wire 6 heats up and conducts the heat upward, which can quickly bring the ground to a comfortable temperature.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A constant power heating mat, comprising a heating mat body (1), a constant power heating unit (2), and a control unit (3), characterized in that, The heating mat body (1) is composed of a plywood layer (4) and an insulation layer (5) stacked from bottom to top; The constant power heating unit (2) includes at least one heating wire (6), which is arranged along a preset meandering path between the paving layer (4) and the insulation layer (5). A fixing structure (7) is provided between the paving layer (4) and the heating wire (6). One end of the heating wire (6) is electrically connected to a lead wire (8) for connecting to an external power source. The control unit (3) is electrically connected to the lead wire (8).

2. The constant power heating mat according to claim 1, characterized in that, The insulating layer (5) includes a PE insulating film layer (9) covering the top of the heating wire (6) and a plurality of metal foil reflective strips (10) disposed in the PE insulating film layer (9), the plurality of metal foil reflective strips (10) corresponding to the heating wire (6).

3. A constant power heating mat according to claim 1, characterized in that, The paving layer (4) is a high-temperature resistant glass fiber mesh cloth, which is used for long-term use at a high temperature of 200℃.

4. A constant power heating mat according to claim 1, characterized in that, The fixing structure (7) includes multiple high-temperature resistant double-sided tapes (11), which are spliced ​​together in a cross shape, and are located at the top and bottom of the paving layer (4) respectively.

5. A constant power heating mat according to claim 1, characterized in that, A hot-cold connector (16) is provided between the heating wire (6) and the lead wire (8), and the hot-cold connector (16) is made by ultrasonic welding.

6. A constant power heating mat according to claim 1, characterized in that, The control unit (3) includes a control panel with adjustment buttons and a temperature display, and multiple temperature sensors disposed in the paving layer (4), the temperature sensors being electrically connected to the control unit (3).

7. A constant power heating mat according to claim 1, characterized in that, The heating wire (6) consists of, from the inside out, a heating core (12) made of copper-nickel alloy wire twisted together, a fluoroplastic insulation layer (13) sleeved around the heating core (12), a metal shielding layer (14) set outside the fluoroplastic insulation layer (13), and a fluoroplastic sheath layer (15) sleeved around the fluoroplastic insulation layer (13).

8. A constant power heating mat according to claim 7, characterized in that, The metal shielding layer (14) is a tin-plated copper wire braided layer, and the metal shielding layer (14) is located inside the fluoroplastic sheath layer (15) and is integrally formed.

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