A back plate floor heating module with prefabricated heat conduction grooves and a construction structure thereof
Patent Information
- Application Number
- CN202522481916.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-11-24
AI Technical Summary
此类做法不仅施工工序繁琐、周期较长，而且砂浆层厚度难以均匀控制，易形成局部“热阻层”，影响热量传导效率，进而导致能耗增加
本实用新型采用挤塑聚苯板为芯材、聚合物砂浆复合网格布为面层，并在表面预制兼具收窄段与加宽段的导热槽，可适配电热或水热系统。该结构摒弃传统厚层水泥回填工艺，显著减薄整体厚度、缩短热传导路径，提升散热均匀性与热效率（约20%）；模块化设计实现快速平铺安装，减少湿作业，施工效率提高约30%；同时兼具轻质节能、环保减碳、兼容性强及饰面平整美观等优势，适用于住宅、办公及公共建筑等多种场景，具有突出的技术经济性和推广应用价值。
Smart Images
Figure CN224769745U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of floor heating technology, and in particular relates to a floor heating module with a prefabricated heat conduction groove and its construction structure. Background Technology
[0002] In traditional underfloor heating construction, heating cables or water pipes are typically laid on the floor, followed by backfilling with cement mortar. This method is not only cumbersome and time-consuming, but also makes it difficult to control the thickness of the mortar layer evenly, easily forming localized "thermal resistance layers" that affect heat transfer efficiency and thus increase energy consumption. In addition, large-area wet work can easily lead to common quality problems such as hollow spots and cracks in the floor.
[0003] Although some dry underfloor heating panels have appeared on the market and can shorten the construction period to some extent, their structural design is relatively simple, and they are mostly based on ordinary extruded boards or simple composite boards, which makes it difficult to meet multiple performance requirements such as reliable cable fixing, uniform heat conduction, and firm bonding with the decorative layer at the same time.
[0004] Therefore, there is an urgent need to develop a backing plate underfloor heating module with a reasonable structure, convenient construction, and excellent thermal conductivity, as well as its construction structure, to overcome the shortcomings in current practical applications. Utility Model Content
[0005] The purpose of this utility model is to provide a backing plate floor heating module with prefabricated heat conduction grooves and its construction structure, aiming to solve the problems mentioned in the background art.
[0006] This utility model is implemented as follows: a backing board floor heating module with prefabricated heat-conducting grooves includes a backing board body; the core material of the backing board body is extruded polystyrene board, and the upper surface of the backing board body is composited with a polymer mortar layer and an alkali-resistant fiberglass mesh fabric layer; the surface of the polymer mortar layer is provided with prefabricated heat-conducting grooves along a preset path, and the prefabricated heat-conducting grooves are used to lay heating pipe layers; the prefabricated heat-conducting grooves are alternately provided with narrowing sections and widening sections along the laying path, the narrowing sections are used to limit and fix the heating pipe layers, and the widening sections are used to fill polymer mortar to form heat-conducting channels.
[0007] In a further technical solution, the overall thickness of the underfloor heating module with prefabricated heat-conducting grooves is 20-40mm.
[0008] In a further technical solution, the cross-section of the prefabricated heat-conducting groove is U-shaped or semi-circular.
[0009] In a further technical solution, the bottom of the prefabricated heat-conducting groove is provided with a micro-concave structure, which is used to increase the contact area between the heating pipeline layer and the mortar layer.
[0010] In a further technical solution, the thickness of the polymer mortar layer is 2-4 mm.
[0011] A further technical solution is that the surface of the backing plate floor heating module with prefabricated heat conduction grooves is provided with repeating matching planar patterns. The planar patterns are used for alignment when adjacent modules are laid flat and connected, so as to realize the continuous arrangement of heating lines.
[0012] Another objective of this utility model is to provide a construction structure for a backing plate underfloor heating module with prefabricated heat-conducting grooves, which, from top to bottom, includes a finishing layer, a first tile adhesive layer, a heating pipe layer, the aforementioned backing plate underfloor heating module with prefabricated heat-conducting grooves, a second tile adhesive layer, and the original floor; the heating pipe layer is laid along the prefabricated heat-conducting grooves on the surface of the backing plate underfloor heating module with prefabricated heat-conducting grooves, and the widened section of the prefabricated heat-conducting grooves is filled with polymer mortar.
[0013] A further technical solution is to fill the joints between adjacent floor heating modules with prefabricated heat-conducting grooves using tile adhesive.
[0014] In a further technical solution, the thickness of both the first tile adhesive layer and the second tile adhesive layer is 3mm.
[0015] In a further technical solution, the heating pipeline layer includes electric heating cables or hot water pipes.
[0016] The present invention provides a backing plate floor heating module with prefabricated heat-conducting grooves and its construction structure, which has the following beneficial effects: This invention uses extruded polystyrene board as the core material and polymer mortar composite mesh as the surface layer, with pre-fabricated heat-conducting grooves on the surface that combine narrowing and widening sections, making it suitable for electric or hydrothermal systems. This structure eliminates the traditional thick-layer cement backfilling process, significantly reducing the overall thickness, shortening the heat conduction path, and improving heat dissipation uniformity and thermal efficiency (approximately 20%). The modular design enables rapid flat installation, reducing wet work and increasing construction efficiency by approximately 30%. It also boasts advantages such as lightweight energy saving, environmental protection and carbon reduction, strong compatibility, and a smooth and aesthetically pleasing finish, making it suitable for various scenarios including residential, office, and public buildings, and possessing outstanding technical and economic value and application potential.
[0017] In summary, this utility model provides a prefabricated heat-conducting groove backing plate floor heating module with reasonable structure, convenient construction, high thermal conductivity, and compatibility with both electric and hydrothermal systems. It significantly improves construction efficiency and thermal energy utilization, and has the advantages of energy saving, environmental protection, and broad application prospects. Attached Figure Description
[0018] Figure 1 A schematic diagram of the construction structure of the underfloor heating module with prefabricated heat-conducting grooves in the underfloor heating system provided in this embodiment of the utility model.
[0019] Figure 2 This is a schematic diagram of the structure of the underfloor heating module with prefabricated heat-conducting grooves provided in an embodiment of the present invention.
[0020] In the diagram: 1-Surface layer, 2-First tile adhesive layer, 3-Heating pipeline layer, 4-Backing board body, 5-Second tile adhesive layer, 6-Original flooring, 7-Heat conduction groove. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0023] Example 1
[0024] like Figure 2 As shown, an embodiment of the present invention provides a backing board floor heating module with prefabricated heat conduction grooves, including a backing board body 4. The core material of the backing board body 4 is extruded polystyrene board (XPS), which has excellent thermal insulation performance and lightweight characteristics. Its upper surface is composited with a polymer mortar layer and an alkali-resistant fiberglass mesh fabric layer to enhance surface strength and adhesion performance.
[0025] A prefabricated heat-conducting groove 7 is provided on the surface of the polymer mortar layer along a preset path for laying the heating pipeline layer 3 (i.e., electric heating cable or hot water pipe). The heat-conducting groove 7 is alternately provided with locally narrowed sections and widened sections along the laying path, wherein: The narrowing section is used to limit and fix the electric heating cable 3; The widened section is used to fill polymer mortar during construction, forming a highly efficient heat conduction channel and improving overall heat dissipation performance. Furthermore, the widened groove area can also be used for laying water pipes in hydronic heating systems, achieving multi-functional compatibility between electric and hydronic heating systems.
[0026] The overall thickness of the underfloor heating module with prefabricated heat-conducting grooves is 20-40mm, and the appropriate specifications can be flexibly selected according to different heat load requirements.
[0027] In a preferred embodiment of this utility model, the heat conduction groove 7 has a U-shaped or semi-circular arc cross-section, which facilitates cable positioning and mortar filling.
[0028] The bottom of the heat conduction groove is provided with a micro-concave structure to increase the contact area between the heating pipeline layer 3 and the mortar layer and enhance the heat conduction effect.
[0029] As a preferred embodiment of this utility model, the surface of the backing plate floor heating module with prefabricated heat conduction grooves is provided with repeating and matching planar patterns. Adjacent modules are laid flat and aligned by relying on the patterns to achieve continuous and orderly arrangement of heating lines, avoiding the occurrence of pipeline obstruction or misalignment.
[0030] In a preferred embodiment of this utility model, the thickness of the polymer mortar layer is 2-4 mm. After the electric heating cable 3 is laid, the heat conduction groove 7 is filled with polymer mortar to form a continuous heat conduction layer, on which the first tile adhesive layer 2 and the rock slab or tile (i.e., the finishing layer 1) are laid in sequence to form a complete dry underfloor heating system.
[0031] Example 2
[0032] like Figure 1 As shown, one embodiment of this utility model also provides a construction structure for a backing board underfloor heating module with prefabricated heat-conducting grooves, which includes, from top to bottom, a finishing layer 1 (ceramic tile or rock slab), a first ceramic tile adhesive layer 2, a heating pipe layer 3, a backing board underfloor heating module with prefabricated heat-conducting grooves, a second ceramic tile adhesive layer 5, and the original floor 6.
[0033] Among them, the heating pipeline layer 3 is laid along the prefabricated heat conduction groove 7 on the surface of the backing plate floor heating module with prefabricated heat conduction groove. The widened section of the heat conduction groove 7 is filled with polymer mortar to form a high-efficiency heat conduction channel.
[0034] The joints between adjacent underfloor heating modules with prefabricated heat-conducting grooves are filled with tile adhesive to reduce thermal bridging, prevent heat loss, and improve overall structural stability.
[0035] The heating pipeline layer 3 includes electric heating cables or hot water pipes, i.e., it adopts electric heating or water heating.
[0036] Compared to traditional underfloor heating systems that use thick layers of cement mortar for backfilling, this solution can improve construction efficiency by more than 30% and heat transfer efficiency by more than 20%.
[0037] In a preferred embodiment of this utility model, the thickness of the first tile adhesive layer 2 and the second tile adhesive layer 5 is 3mm.
[0038] During construction, the original floor slab 6 is first cleaned and leveled. Then, the underfloor heating modules are laid flat on the original floor slab 6, and precise alignment and continuous wiring are achieved through the alignment patterns on the module surface. Next, the electric heating cables are embedded in the heat conduction grooves 7, and polymer mortar is filled in the widened sections. After the mortar has cured, tile adhesive is applied to the module surface, and a tile or slab finishing layer is laid to form a complete dry underfloor heating system.
[0039] The floor heating module with prefabricated heat-conducting grooves and its construction structure provided by this utility model can be widely used in electric or water floor heating systems in residential, office, and public buildings.
[0040] The modular prefabrication design requires only laying and connecting the pipes on site, embedding the pipelines, and filling the mortar in some areas. It eliminates the need for traditional thick cement backfilling and large-area wet work, improving construction efficiency by about 30%, significantly shortening the construction period, and reducing labor and material costs.
[0041] After the widened section of the heat conduction groove 7 is filled with polymer mortar, it forms a continuous heat conduction channel. Combined with the precise limiting of the pipeline by the narrowed section, it effectively shortens the heat conduction path, improves the uniformity of heat distribution, and increases the overall thermal efficiency by about 20%.
[0042] Using lightweight, high-insulation extruded polystyrene board (XPS) as the core material significantly reduces the amount of backfill material used, lowers the structural load, and reduces energy consumption, achieving energy saving, carbon reduction, and green construction.
[0043] The module can be used to lay electric heating cables or to adapt to water heating pipes. By adjusting the width of the heat conduction groove 7, it can flexibly switch between electric heating and water heating systems to meet diverse engineering needs.
[0044] The module surface features alignment patterns to ensure continuous and smooth heating during splicing, resulting in a flat and consistent overall surface. This provides a good base for subsequent tile or slab finishing, enhancing the decorative effect and project quality.
[0045] In summary, through structural innovation and process optimization, this utility model has achieved a comprehensive improvement in the construction efficiency, thermal performance, environmental protection, and applicability of the underfloor heating system, and has significant technical advantages and broad prospects for promotion and application.
[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0047] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A backing plate floor heating module with prefabricated heat-conducting grooves, comprising a backing plate body (4), characterized in that, The core material of the backing board body (4) is extruded polystyrene board, and the upper surface of the backing board body (4) is composite with a polymer mortar layer and an alkali-resistant fiberglass mesh fabric layer. The surface of the polymer mortar layer is provided with a prefabricated heat-conducting groove (7) along a preset path. The prefabricated heat-conducting groove (7) is used to lay the heating pipeline layer (3). The prefabricated heat-conducting groove (7) has alternating narrowing and widening sections along the laying path. The narrowing section is used to limit and fix the heating pipeline layer (3), and the widening section is used to fill polymer mortar to form a heat-conducting channel.
2. The underfloor heating module with prefabricated heat-conducting grooves as described in claim 1, characterized in that, The overall thickness of the underfloor heating module with prefabricated heat-conducting grooves is 20-40mm.
3. The underfloor heating module with prefabricated heat-conducting grooves as described in claim 2, characterized in that, The cross-section of the prefabricated heat-conducting groove (7) is U-shaped or semi-circular.
4. The underfloor heating module with prefabricated heat-conducting grooves as described in claim 3, characterized in that, The bottom of the prefabricated heat-conducting groove (7) is provided with a micro-concave structure, which is used to increase the contact area between the heating pipeline layer (3) and the mortar layer.
5. The underfloor heating module with prefabricated heat-conducting grooves according to claim 4, characterized in that, The thickness of the polymer mortar layer is 2-4 mm.
6. The underfloor heating module with prefabricated heat-conducting grooves as described in claim 5, characterized in that, The surface of the underfloor heating module with prefabricated heat-conducting grooves is provided with repeating and matching planar patterns. These planar patterns are used for alignment when adjacent modules are laid flat and joined together, so as to achieve continuous arrangement of heating lines.
7. A construction structure for a floor heating module with a prefabricated heat-conducting groove backing plate, characterized in that, From top to bottom, it includes a finishing layer (1), a first tile adhesive layer (2), a heating pipeline layer (3), a backing board floor heating module with prefabricated heat conduction grooves as described in any one of claims 1-6, a second tile adhesive layer (5), and the original floor (6). The heating pipeline layer (3) is laid along the prefabricated heat conduction groove (7) on the surface of the backing plate floor heating module with prefabricated heat conduction groove, and the widened section of the prefabricated heat conduction groove (7) is filled with polymer mortar.
8. The construction structure of the underfloor heating module with prefabricated heat-conducting grooves as described in claim 7, characterized in that, The joints between adjacent floor heating modules with prefabricated heat-conducting grooves are filled with tile adhesive.
9. The construction structure of the underfloor heating module with prefabricated heat-conducting grooves as described in claim 8, characterized in that, The thickness of the first tile adhesive layer (2) and the second tile adhesive layer (5) is 3mm.
10. The construction structure of the underfloor heating module with prefabricated heat-conducting grooves as described in claim 9, characterized in that, The heating pipeline layer (3) includes electric heating cables or hot water pipes.