A floor heating insulation board

Abstract

The utility model belongs to building thermal insulation technical field, concretely relates to a floor heating insulation board, including upper layer support board and lower layer insulation board, the upper layer support board adopts cavity structure, and phase change material is injected in the cavity, and the surface of upper layer support board is reserved with groove, the groove is used to lay metal heating cable, the upper layer support board is connected with lower layer insulation board through binder or mortise and tenon structure fixedly connected. Compared with prior art, the utility model has the advantages of simple structure, convenient operation and maintenance, and high energy utilization rate, low operating cost, and is suitable for popularization and application.

Description

Technical Field

[0001] This utility model belongs to the field of building insulation technology, specifically, it relates to a floor heating insulation board. Background Technology

[0002] Underfloor heating is a heating method that uses radiant heat from the floor, offering advantages such as high comfort, energy efficiency, environmental friendliness, and easy maintenance. Based on the heating method, underfloor heating can be divided into electric underfloor heating, water-based underfloor heating, and dry underfloor heating. It involves heating hot water or a heat transfer medium, which then radiates heat into the room through the floor material, causing the indoor temperature to rise evenly.

[0003] Traditional underfloor heating systems suffer from low energy efficiency during operation, failing to effectively store and utilize electricity generated during off-peak hours at night. Existing underfloor heating insulation boards only provide basic insulation and lack thermal energy storage technology. Some products that combine phase change materials (PCMs) with insulation boards often use a pre-fabricated filling method, resulting in an integrated structure of PCMs and insulation boards. This leads to uneven distribution of PCMs and difficulties in replacement, making it difficult to meet the demands for high-efficiency and energy-saving heating.

[0004] Therefore, there is an urgent need to improve the existing structure of underfloor heating insulation boards. Utility Model Content

[0005] The purpose of this invention is to propose a floor heating insulation board that combines the heat storage function of phase change material with the heat insulation function of the insulation board through a layered structure design. It utilizes off-peak electricity at night to heat the phase change material, thereby achieving continuous heating during the day, thus improving energy efficiency and reducing heating costs.

[0006] To achieve the above objectives, the technical solution proposed by this utility model is as follows: A floor heating insulation board includes an upper support board and a lower insulation board. The upper support board has a cavity structure, and the cavity is filled with a phase change material. The surface of the upper support board has grooves for laying metal heating cables. The upper support board and the lower insulation board are fixedly connected by adhesive or tenon joint to ensure the overall structural stability.

[0007] Preferably, the cavity of the upper support plate adopts a box structure with four sides sealed, and has a filling port at the top to facilitate the injection and replenishment of phase change material. The filling port is equipped with a sealing plug to prevent leakage of phase change material.

[0008] Preferably, the grooves are arranged in a grid pattern, and their depth and width are adapted to the size of the metal heating cable. The metal heating cable can be flexibly wound in the grooves in the horizontal or vertical direction, making the arrangement more flexible. For square-structured floor heating insulation boards, during installation, it is only necessary to align the adjacent sides of the floor heating insulation board to ensure the alignment of the grooves, which helps to improve installation efficiency. Preferably, the grooves are transverse grooves and are evenly distributed along the longitudinal direction of the upper support plate. During installation, the grooves between transversely adjacent floor heating insulation boards must be aligned, and the metal heating cables can only be arranged along the transverse direction of the grooves. Compared with grid-like grooves, this will increase the workload of installing the floor heating insulation boards to some extent.

[0009] Preferably, the grooves are longitudinal grooves and are evenly distributed along the transverse direction of the upper support plate. During installation, the grooves between longitudinally adjacent floor heating insulation boards must be aligned, and the metal heating cables can only be arranged along the longitudinal direction of the grooves. Compared with grid-like grooves, this will increase the workload of installing the floor heating insulation boards to some extent.

[0010] Preferably, the lower insulation board is made of polystyrene foam board or polyurethane foam board, which has good thermal insulation performance and can effectively reduce heat loss downward.

[0011] Preferably, the phase change material is No. 48 paraffin wax. This phase change material has a low melting point, making it suitable for low-temperature energy storage scenarios where the phase change temperature requirement is not high. It can be used in underfloor heating systems where heat storage and release occur at around 40-50°C.

[0012] This utility model also includes other components that enable its normal use, all of which are conventional means in the field. In addition, devices or components not limited in this utility model, such as phase change materials, metal heating cables, mortise and tenon structures, all adopt existing technologies in the field.

[0013] The working principle of this invention is as follows: When in use, the floor heating insulation board is laid beneath the indoor floor, and the metal heating cables are electrically connected to the indoor power supply via a controller. During production, a lower layer of ordinary insulation board is first manufactured and cut to the designed dimensions. Then, the upper support board's box structure is fabricated, with pre-reserved injection ports and grooves. After the upper and lower layers are fixedly connected, phase change material is injected through the injection ports, which are then sealed. During the installation of the floor heating system, the metal heating cables are laid in the grooves and connected to the power supply. The system is turned on during off-peak electricity hours at night, and the heating cables cause the phase change material to absorb heat and undergo a phase change, storing thermal energy. During the day, the phase change material releases heat, providing warmth to the room through the floor.

[0014] Compared with the prior art, this application has the following beneficial effects: 1. The design of injecting phase change material into the cavity of the upper support plate allows for flexible control of the filling amount of phase change material according to actual needs, and facilitates later replacement and maintenance.

[0015] 2. The grooves reserved in the upper support plate facilitate the laying of metal heating cables, ensuring a neat cable layout, while optimizing the heat conduction path so that the heat generated by the cable is quickly absorbed and stored by the phase change material.

[0016] 3. The upper and lower layers have a clear division of labor: the upper support plate stores heat energy, while the lower insulation plate provides insulation and heat protection, effectively improving the energy efficiency of the underfloor heating system and reducing operating costs.

[0017] In summary, this utility model has the advantages of simple structure, convenient operation and maintenance, high energy utilization rate and low operating cost, and is suitable for widespread application. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention in Embodiment 1.

[0019] Figure 2 This is a top view of the structure of the present invention after the metal heating cable is laid in Example 1.

[0020] Figure 3 This is a three-dimensional structural diagram of the present invention in Embodiment 2.

[0021] Figure 4 This is a top view of the structure of the present invention after the metal heating cable is laid in Example 2.

[0022] Figure 5 This is a three-dimensional structural diagram of the present invention in Embodiment 3.

[0023] Figure 6 This is a three-dimensional structural diagram of the present invention in Example 4.

[0024] Figure 7 This is a three-dimensional structural diagram of the present invention in Example 5. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1 like Figures 1-2 As shown in the figure, this embodiment proposes a floor heating insulation board, including an upper support board 1 and a lower insulation board 2. The upper support board adopts a cavity structure, and the cavity is filled with a phase change material (not shown in the figure). The surface of the upper support board has a groove 3, which is used to lay metal heating cables 5. The upper support board and the lower insulation board are fixedly connected by an adhesive (not shown in the figure) to ensure the overall structural stability.

[0027] Specifically, the cavity of the upper support plate adopts a box structure with four sides sealed, and there is a filling port 4 at the top to facilitate the injection and replenishment of phase change material. The filling port is equipped with a sealing plug (not shown in the figure) to prevent leakage of phase change material. The lower insulation board is made of polystyrene foam board or polyurethane foam board, which has good thermal insulation performance and can effectively reduce heat loss downward.

[0028] In this embodiment, the trenches are grid-like, and each trench has a rectangular cross-section, the depth and width of which are adapted to the dimensions of the metal heating cable. The metal heating cable can be flexibly wound in the trenches in either the horizontal or vertical direction. For square-structured floor heating insulation boards, during installation, it is only necessary to align the adjacent sides of the floor heating insulation board to ensure the alignment of the trenches, which helps to improve installation efficiency.

[0029] The phase change material in this invention is No. 48 paraffin wax, which has a low melting point and is suitable for low-temperature energy storage scenarios where the phase change temperature requirement is not high. It can be used in underfloor heating systems that store and release heat at around 40~50℃.

[0030] Example 2 like Figures 3-4 As shown, the difference between this embodiment and embodiment 1 is only that: the groove 3 is a rectangular groove arranged longitudinally and evenly distributed transversely. When the floor insulation wall panel is laid, an installation gap needs to be left between the rectangular groove of the floor insulation wall panel near the wall and the wall so that the metal heating cable 5 can be wound around to the next rectangular groove.

[0031] Example 3 like Figure 5 As shown, the only difference between this embodiment and embodiment 2 is that the groove is a semi-circular groove arranged longitudinally.

[0032] Example 4 like Figure 6 As shown, the only difference between this embodiment and embodiment 3 is that the groove is a semi-circular groove arranged in the transverse direction and evenly distributed in the longitudinal direction.

[0033] Example 5 like Figure 7 As shown, the only difference between this embodiment and Embodiment 1 is that the upper support plate 1 and the lower insulation plate 2 are fixedly connected by a mortise and tenon structure to ensure the overall structural stability.

[0034] The working principle of this invention is as follows: When in use, the floor heating insulation board is laid beneath the indoor floor, and the metal heating cable is electrically connected to the indoor power supply via a controller. During production, a lower layer of ordinary insulation board is first manufactured and cut to the designed dimensions. Then, the upper support board's box structure is fabricated, with pre-reserved injection ports and grooves. After the upper and lower layers are fixedly connected, phase change material is injected through the injection port, which is then sealed. During the installation of the floor heating system, the metal heating cable is laid in the groove and connected to the power supply. The system is turned on during off-peak electricity hours at night, and the metal heating cable heats up, causing the phase change material to absorb heat and undergo a phase change to store thermal energy. During the day, the phase change material releases heat, providing warmth to the room through the floor.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A floor heating insulation board, comprising an upper support board and a lower insulation board, characterized in that: The upper support plate adopts a cavity structure, the cavity is filled with phase change material, and the surface of the upper support plate has grooves for laying metal heating cables. The upper support plate and the lower insulation plate are fixedly connected by adhesive or tenon and mortise structure.

2. The underfloor heating insulation board according to claim 1, characterized in that: The cavity of the upper support plate adopts a box structure with four sides sealed, and there is a filling port at the top, which is equipped with a sealing plug.

3. The underfloor heating insulation board according to claim 1, characterized in that: The grooves are arranged in a grid pattern, and their depth and width are adapted to the size of the metal heating cable.

4. The underfloor heating insulation board according to claim 1, characterized in that: The groove is a transverse groove, and it is evenly distributed along the longitudinal direction of the upper support plate. Its depth and width are adapted to the size of the metal heating cable.

5. The underfloor heating insulation board according to claim 1, characterized in that: The grooves are longitudinal grooves and are evenly distributed along the transverse direction of the upper support plate. Their depth and width are adapted to the size of the metal heating cable.

6. The underfloor heating insulation board according to claim 1, characterized in that: The lower insulation board is made of polystyrene foam board or polyurethane foam board.

7. A floor heating insulation board according to any one of claims 1 to 6, characterized in that: The phase change material used is No. 48 paraffin.

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