A heat conducting structure for a floor heating system

Abstract

The utility model discloses a kind of heat conduction structures for floor heating system, comprising: hot water pipe, first heat conduction plate, pipeline locking structure, heat preservation plate and second heat conduction plate, first heat conduction plate is provided with embedding groove, embedding groove extends along the laying path of hot water pipe, hot water pipe is housed in embedding groove, first heat conduction plate is heat-conducting connected with hot water pipe;Pipeline locking structure is located in embedding groove, and hot water pipe is locked in first heat conduction plate;Heat preservation plate is provided with housing groove, and first heat conduction plate is housed in housing groove;Second heat conduction plate is located above hot water pipe, first heat conduction plate and heat preservation plate, and is supported by first heat conduction plate and heat preservation plate;Second heat conduction plate is connected with first fastener and second fastener, and first fastener fixedly connects second heat conduction plate and first heat conduction plate;Second fastener fixedly connects second heat conduction plate and heat preservation plate.It can improve the connection stability and fixed reliability of each component in hot water pipe system under thermal expansion and contraction environment.

Description

Technical Field

[0001] This utility model relates to the field of heat-conducting structure technology, and in particular to a heat-conducting structure for underfloor heating systems. Background Technology

[0002] In heating projects for various buildings such as residential buildings, commercial complexes, and office buildings, water-based underfloor heating systems have become the mainstream choice for indoor heating in modern buildings due to their advantages of uniform heating, comfortable feel, and relatively low energy consumption. The heat-conducting structure used in the underfloor heating system, as the core medium between the hot water pipe and the floor decoration layer, must not only achieve efficient heat transfer from the hot water pipe to the room, but also undertake the function of fixing and limiting the hot water pipe, and coordinate the connection stability between the layers. It directly determines the heating efficiency, service life, and safety of the underfloor heating system.

[0003] Current underfloor heating heat conduction structures on the market have significant technical shortcomings: the temperature of the hot water pipes rises when water is flowing and falls when it is not in use, and this repeated alternation causes the materials to expand and contract due to thermal expansion and contraction. This leads to gaps between the layers due to thermal expansion and contraction, resulting in uneven heating in certain areas. Furthermore, the fasteners, heat conduction structures, and hot water pipes expand and contract differently with temperature changes, making them prone to loosening and further weakening the overall stability. Existing underfloor heating heat conduction structures struggle to simultaneously meet the dual requirements of efficient heat transfer and reliable component connection under conditions of thermal expansion and contraction. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a heat-conducting structure for underfloor heating systems, which can improve the connection stability and fixing reliability of various components in hot water pipe systems under the environment of thermal expansion and contraction.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A heat-conducting structure for a floor heating system, comprising:

[0007] Hot water pipe, the hot water pipe being used to transport heat-conducting fluid and dissipate heat to the surroundings;

[0008] A first heat-conducting plate is provided with a embedding groove, which extends along the laying path of the hot water pipe. The hot water pipe is housed in the embedding groove, and the first heat-conducting plate is thermally connected to the hot water pipe.

[0009] A pipe locking structure is provided in the buried trench and locks the hot water pipe to the first heat-conducting plate;

[0010] The insulation board has a receiving groove, and the first heat-conducting plate is received in the receiving groove;

[0011] The second heat-conducting plate is disposed above the hot water pipe, the first heat-conducting plate, and the insulation plate, and is supported by the first heat-conducting plate and the insulation plate; the second heat-conducting plate is connected to a first fastener and a second fastener, the first fastener fixing the second heat-conducting plate and the first heat-conducting plate together; the second fastener fixing the second heat-conducting plate and the insulation plate together.

[0012] Furthermore, the pipe locking structure includes multiple positioning seats and multiple elastic cover members; the multiple positioning seats are arranged sequentially at intervals along the laying path of the hot water pipe; the positioning seats are provided with positioning grooves, the hot water pipe is accommodated in the multiple positioning grooves, each positioning seat is respectively hinged to at least one elastic cover member, and cooperates with the corresponding elastic cover member to cover the hot water pipe, the elastic cover member is squeezed by the second heat-conducting plate.

[0013] Furthermore, the second heat-conducting plate includes multiple unit plates. Each of the two ends of the unit plate along its length is provided with a first overlapping structure and a second overlapping structure. The first overlapping structure is provided with a first overlapping groove, and the second overlapping structure is provided with a first overlapping protrusion. The first overlapping groove is recessed along the thickness direction of the unit plate, and the first overlapping protrusion is protruding along the thickness direction of the unit plate. The multiple unit plates are distributed sequentially along the length direction of the unit plate, and in two adjacent unit plates, the first overlapping groove of one of them is engaged with the first overlapping protrusion of the other.

[0014] Furthermore, the two ends of the unit plate in the width direction are respectively provided with a third overlapping structure and a fourth overlapping structure. The third overlapping structure is provided with a second overlapping groove, and the fourth overlapping structure is provided with a second overlapping protrusion. The second overlapping groove is recessed along the thickness direction of the unit plate, and the second overlapping protrusion is protruding along the thickness direction of the unit plate. Multiple unit plates are distributed sequentially along the width direction of the unit plate, and in two adjacent unit plates, the second overlapping groove of one of them is engaged with the second overlapping protrusion of the other.

[0015] Furthermore, both the inner walls of the first and second overlapping grooves are provided with sealing strips, which seal the fitting gap between two adjacent unit plates.

[0016] Furthermore, the second heat-conducting plate has an elongated hole, through which the first fastener passes and is fixedly connected to the first heat-conducting plate; the elongated hole is used to provide compensation space for the first fastener to wobble due to the thermal expansion and contraction of the second and first heat-conducting plates.

[0017] Furthermore, the second fastener includes a bolt and a heat insulation sleeve. The bolt passes through the heat insulation sleeve, the second heat-conducting plate, and the insulation plate sequentially along the thickness direction of the second heat-conducting plate. The heat insulation sleeve is fitted around the shank of the bolt and is used to prevent the heat of the second heat-conducting plate from being lost through the insulation plate.

[0018] Furthermore, the heat insulation sleeve is made of nylon.

[0019] Furthermore, the insulation board also includes an elastic positioning strip, which is disposed on the wall of the receiving groove and extends along the length of the insulation board; the elastic positioning strip is held by the first heat-conducting plate and the receiving groove.

[0020] Furthermore, the burial trench includes a straight section and a corner transition section. The straight section extends along the straight laying path of the hot water pipe. The corner transition section is located at the corner of the hot water pipe. The inner wall of the corner transition section is provided with an elastic buffer layer, which is attached to the outer wall of the corner of the hot water pipe.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. Based on the fact that hot water pipes are used to transport heat-conducting fluids and dissipate heat to the surroundings, hot water pipes can continuously provide a stable heat source for the underfloor heating system. Through the outward transfer of fluid heat, initial energy is provided for the heat conduction of the subsequent first and second heat-conducting plates.

[0023] 2. An embedded groove is provided on the first heat-conducting plate, which extends along the laying path of the hot water pipe. The hot water pipe is housed in the embedded groove, and the first heat-conducting plate is thermally connected to the hot water pipe. This allows the embedded groove to fully fit the outer wall of the hot water pipe, greatly increasing the thermal contact area between the two and reducing heat loss during the transfer process. At the same time, the embedded groove provides a precise laying track and support for the hot water pipe, preventing misalignment of the hot water pipe due to laying deviation or its own weight, and ensuring that heat can be stably conducted from the hot water pipe to the first heat-conducting plate.

[0024] 3. Based on the pipe locking structure being installed in the burial trench, the hot water pipe is locked to the first heat-conducting plate. This allows the pipe locking structure to prevent the hot water pipe from rolling or sliding axially due to thermal expansion and contraction through close contact with the inner wall of the burial trench and the outer wall of the hot water pipe. This avoids the hot water pipe coming off the burial trench and causing the heat conduction connection to be interrupted, ensuring that the hot water pipe and the first heat-conducting plate always maintain a close heat conduction relationship and maintain the stability of the heat conduction efficiency.

[0025] 4. The insulation board has a receiving groove, and the first heat-conducting plate is housed in the receiving groove. This allows the receiving groove to wrap around and limit the first heat-conducting plate. The heat insulation properties of the insulation board prevent the heat from the first heat-conducting plate from dissipating towards the ground base, and concentrate the heat to the second heat-conducting plate above, reducing energy waste. In addition, the receiving groove provides a stable mounting base for the first heat-conducting plate, preventing the first heat-conducting plate from tilting or shifting due to uneven ground, and ensuring the horizontal laying state of the first heat-conducting plate.

[0026] 5. Since the second heat-conducting plate is located above the hot water pipe, the first heat-conducting plate, and the insulation plate, and is supported by the first heat-conducting plate and the insulation plate, the second heat-conducting plate can receive the heat diffused from the first heat-conducting plate and the small amount of heat directly transferred from the hot water pipe. This evenly diffuses the local heat that was originally concentrated around the hot water pipe to the entire plate surface, avoiding uneven heating of the ground. At the same time, the supporting effect of the first heat-conducting plate and the insulation plate ensures that the second heat-conducting plate can maintain a horizontal and stable laying state, providing structural guarantee for uniform heat transfer.

[0027] 6. The second heat-conducting plate is connected to a first fastener and a second fastener. The first fastener fixes the second heat-conducting plate and the first heat-conducting plate together, and the second fastener fixes the second heat-conducting plate and the insulation plate together. This allows the first fastener to eliminate the gap between the second heat-conducting plate and the first heat-conducting plate, ensuring that the two are in close contact to maintain the continuity of heat conduction and avoiding the obstruction of heat transfer due to the existence of gaps.

[0028] The second fastener can limit the warping or displacement of the second heat-conducting plate caused by thermal expansion and contraction. At the same time, the double fixing makes the second heat-conducting plate, the first heat-conducting plate, and the insulation plate form an integrated structure, preventing the components from loosening and ensuring the long-term stable operation of the entire heat-conducting structure.

[0029] 7. Based on the sequential heat-conducting connection of the first heat-conducting plate, the insulation plate, the second heat-conducting plate, and the hot water pipe, and the first heat-conducting plate and the second heat-conducting plate are fixedly connected by the first fastener, and the second heat-conducting plate and the insulation plate are fixedly connected by the second fastener, the separation phenomenon between the heat-conducting structures caused by thermal expansion and contraction is weakened. Attached Figure Description

[0030] Figure 1 This is an isometric side view of a heat-conducting structure for a floor heating system according to the present invention;

[0031] Figure 2 for Figure 1 The isometric side view of the unit plate shown;

[0032] Figure 3 for Figure 1 The bottom view of the unit panel shown.

[0033] In the diagram: 1. Hot water pipe; 2. First heat-conducting plate; 201. Embedded groove; 202. Straight section; 203. Corner transition section; 3. Pipe locking structure; 301. Positioning seat; 302. Elastic cover; 303. Positioning groove; 4. Insulation board; 401. Receiving groove; 5. Second heat-conducting plate; 501. First fastener; 502. Second fastener; 503. Unit plate; 504. First overlapping structure; 505. Second overlapping structure; 506. First overlapping groove; 507. First overlapping protrusion; 508. Third overlapping structure; 509. Fourth overlapping structure; 511. Second overlapping groove; 512. Second overlapping protrusion; 513. Bolt; 514. Insulation sleeve. Detailed Implementation

[0034] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0035] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] See Figures 1-3 A preferred embodiment of the present invention provides a heat-conducting structure for a floor heating system, comprising: a hot water pipe 1, a first heat-conducting plate 2, a pipe locking structure 3, an insulation plate 4, and a second heat-conducting plate 5.

[0038] The hot water pipe 1 is configured to convey heat-conducting fluid and dissipate heat to the surroundings. According to the actual application scenario of the heat conduction system in the floor heating system, the heat-conducting fluid is preferably hot water. Considering that floor heating pipes need to withstand a certain temperature for a long time and adapt to the laying path with multiple corners, materials with good temperature resistance and strong flexibility are preferred. There are usually several common laying methods for the floor heating hot water pipe 1: for example, inline flat laying, that is, the pipes are laid in parallel along the length or width direction of the room with uniform spacing, and the overall arrangement is linear, which is suitable for large-area square spaces such as living rooms and bedrooms, and can ensure uniform heat diffusion; another example is the Hui-shaped layout, that is, the pipes start from one side of the room, extend along the wall and then turn inward, forming a closed loop similar to the Chinese character "Hui", which adapts to square rooms and can reduce heat loss in corner areas; another example is the spiral layout, that is, the pipes are laid in a spiral diffusion from the center of the room to the surroundings, which is suitable for small-area areas such as bathrooms and toilets, and can quickly increase the local temperature to meet the rapid heating demand. Different laying methods shall be selected comprehensively in combination with the space shape, heating demand and furniture placement, so as to ensure that the pipe path not only meets the requirements of heat dissipation efficiency, but also adapts to the laying scene with multiple corners.

[0039] The first heat-conducting plate 2 is preferably an aluminum alloy plate. Aluminum alloy has high thermal conductivity and good ductility, which can quickly receive the heat transferred by the hot water pipe 1 and diffuse it efficiently. Meanwhile, its lightweight characteristic facilitates installation and is not prone to deformation due to self-weight. The first heat-conducting plate 2 is provided with an embedding groove 201, the embedding groove 201 extends along the laying path of the hot water pipe 1, the hot water pipe 1 is accommodated in the embedding groove 201, and the first heat-conducting plate 2 is in heat-conducting connection with the hot water pipe 1. Wherein, the contour of the embedding groove 201 is preferably matched with the outer wall contour of the hot water pipe 1, so that the hot water pipe 1 can be embedded into the groove to form a fitting assembly. This groove structure not only provides a supporting foundation for the hot water pipe 1, but also increases the contact area between the two to improve the heat conduction efficiency, and meanwhile forms lateral restraint on the hot water pipe 1 through the groove wall.

[0040] The pipe locking structure 3 is arranged in the embedding groove 201, the contact surface between the pipe locking structure 3 and the hot water pipe 1 abuts against the outer wall of the hot water pipe 1, and both sides of the pipe locking structure 3 are attached to the inner wall of the embedding groove 201, so as to fix the hot water pipe 1 through close contact with both. The pipe locking structure 3 locks the hot water pipe 1 on the first heat-conducting plate 2. Through the mechanical cooperation between the structure itself, the groove body and the pipe, the displacement of the hot water pipe 1 in the embedding groove 201 is limited, ensuring that the hot water pipe 1 and the first heat-conducting plate 2 always maintain a fitted heat conduction relationship.

[0041] The insulation board 4 is preferably extruded polystyrene (XPS) board. XPS board has low thermal conductivity, high compressive strength, and can withstand ground loads such as furniture and foot traffic without deformation. It also has excellent moisture resistance, preventing damp ground conditions from affecting the insulation effect, making it suitable for residential homes and other scenarios with conventional loads. The insulation board 4 has a receiving groove 401, in which the first heat-conducting plate 2 is housed. It should be noted that the insulation board 4 is a plate-like structure with a certain thickness. Its upper surface has a receiving groove 401 extending along its length. The size of the receiving groove 401 is adapted to the shape of the first heat-conducting plate 2, allowing the first heat-conducting plate 2 to be fully embedded within the receiving groove 401. The groove wall of the receiving groove 401 fits against the side of the first heat-conducting plate 2, forming a wrapping constraint on the first heat-conducting plate 2. Simultaneously, the bottom surface of the insulation board 4 contacts the ground substrate, providing bottom support for the entire structure.

[0042] The second heat-conducting plate 5 is positioned above the hot water pipe 1, the first heat-conducting plate 2, and the insulation plate 4, and is supported by the first heat-conducting plate 2 and the insulation plate 4. It should be noted that the second heat-conducting plate 5 is a cover-type plate structure, with its lower surface fitting against the upper surfaces of the hot water pipe 1, the first heat-conducting plate 2, and the insulation plate 4, forming a fully covered assembly. The second heat-conducting plate 5 is preferably made of aluminum alloy. The high thermal conductivity of aluminum alloy allows it to form a matching heat conduction path with the first heat-conducting plate 2, ensuring consistent heat transfer efficiency. Simultaneously, its good structural strength allows it to cover a large area without easily warping. The second heat-conducting plate 5 is connected by a first fastener 501 and a second fastener 502. The first fastener 501 securely connects the second heat-conducting plate 5 and the first heat-conducting plate 2; the second fastener 502 securely connects the second heat-conducting plate 5 and the insulation plate 4. It is understandable that the connection with the first heat-conducting plate 2 ensures that there is no gap between the two to guarantee the continuity of heat conduction, while the connection with the insulation plate 4 restricts the warping or displacement of the second heat-conducting plate 5.

[0043] Before installation, the subfloor of the underfloor heating area should be cleaned and leveled, removing debris and repairing cracks to ensure there are no obvious protrusions or depressions to avoid affecting the fit of the components. Then, proceed with the installation: first, lay the insulation board 4 flat on the subfloor with the receiving groove 401 facing upwards; then, place the first heat-conducting plate 2 into the receiving groove 401, adjusting its position to align the embedding groove 201 with the pre-set path of the hot water pipe 1; next, embed the hot water pipe 1 into the embedding groove 201, and install the pipe locking structure 3 within the embedding groove 201 to ensure tight contact between the pipe locking structure 3 and the hot water pipe 1 and the groove wall; then, cover the insulation board 4, the first heat-conducting plate 2, and the hot water pipe 1 with the second heat-conducting plate 5, securing the second heat-conducting plate 5 to the first heat-conducting plate 2 using the first fastener 501, and securing the second heat-conducting plate 5 to the insulation board 4 using the second fastener 502; finally, check that all components fit tightly and are not loose, and complete the installation after confirming everything is correct. The heat transfer path of the entire structure is as follows: First, the heat-conducting fluid in the hot water pipe 1 transfers heat to the pipe wall of the hot water pipe 1; since the hot water pipe 1 is tightly attached to the embedded groove 201 of the first heat-conducting plate 2, the heat of the pipe wall is quickly conducted to the first heat-conducting plate 2, and the first heat-conducting plate 2 can evenly diffuse the local heat to the entire plate surface; at the same time, the insulation board 4 wraps the first heat-conducting plate 2 through the receiving groove 401, blocking the heat loss to the ground base layer, so that the heat of the first heat-conducting plate 2 is concentrated and transferred upward; the second heat-conducting plate 5 covering above is tightly attached to the first heat-conducting plate 2 and the upper surface of the hot water pipe 1, on the one hand receiving the heat diffused by the first heat-conducting plate 2, and on the other hand directly receiving a small amount of heat transferred by the hot water pipe 1, and then through the large area plate structure of the second heat-conducting plate 5, the heat is evenly transferred to the ground decoration layer, and finally the ground decoration layer radiates the heat to the indoor space to achieve floor heating.

[0044] The hot water pipe 1 is used to transport the heat-conducting fluid and dissipate heat to the surroundings, enabling it to continuously provide a stable heat source for the underfloor heating system. Through the outward transfer of heat from the fluid, it provides initial energy for the subsequent heat conduction of the first heat-conducting plate 2 and the second heat-conducting plate 5. The first heat-conducting plate 2 has a recessed groove 201 that extends along the laying path of the hot water pipe 1. The hot water pipe 1 is housed within the recessed groove 201, and the first heat-conducting plate 2 is thermally connected to the hot water pipe 1. This allows the recessed groove 201 to fully fit against the outer wall of the hot water pipe 1, significantly increasing the thermal contact area and reducing heat loss during transmission. Simultaneously, the recessed groove 201 provides a precise laying track and support for the hot water pipe 1, preventing misalignment due to laying deviation or its own weight, ensuring stable heat conduction from the hot water pipe 1 to the first heat-conducting plate 2. The pipe locking structure 3 is installed in the burial trench 201 and locks the hot water pipe 1 to the first heat-conducting plate 2. This allows the pipe locking structure 3 to prevent the hot water pipe 1 from rolling or sliding axially due to thermal expansion and contraction by making close contact with the inner wall of the burial trench 201 and the outer wall of the hot water pipe 1. This prevents the hot water pipe 1 from falling out of the burial trench 201 and causing the heat conduction connection to be interrupted, ensuring that the hot water pipe 1 and the first heat-conducting plate 2 always maintain a close heat conduction relationship and maintain the stability of the heat conduction efficiency. The insulation board 4 has a receiving groove 401, and the first heat-conducting plate 2 is housed in the receiving groove 401. This allows the receiving groove 401 to wrap around and limit the first heat-conducting plate 2. The heat insulation properties of the insulation board 4 prevent the heat of the first heat-conducting plate 2 from dissipating towards the ground base layer, and concentrate the heat to the second heat-conducting plate 5 above, reducing energy waste. In addition, the receiving groove 401 provides a stable mounting base for the first heat-conducting plate 2, preventing the first heat-conducting plate 2 from tilting or shifting due to uneven ground, and ensuring the horizontal laying state of the first heat-conducting plate 2. The second heat-conducting plate 5 is positioned above the hot water pipe 1, the first heat-conducting plate 2, and the insulation plate 4, and is supported by the first heat-conducting plate 2 and the insulation plate 4. This allows the second heat-conducting plate 5 to receive the heat diffused from the first heat-conducting plate 2 and the small amount of heat directly transferred from the hot water pipe 1, thus evenly dispersing the localized heat that was originally concentrated around the hot water pipe 1 to the entire plate surface, avoiding uneven heating of the ground. At the same time, the supporting effect of the first heat-conducting plate 2 and the insulation plate 4 ensures that the second heat-conducting plate 5 can maintain a horizontal and stable laying state, providing structural protection for uniform heat transfer.The second heat-conducting plate 5 is connected by a first fastener 501 and a second fastener 502. The first fastener 501 fixes the second heat-conducting plate 5 and the first heat-conducting plate 2, and the second fastener 502 fixes the second heat-conducting plate 5 and the insulation plate 4. The first fastener 501 can eliminate the gap between the second heat-conducting plate 5 and the first heat-conducting plate 2, ensuring that the two are in close contact to maintain the continuity of heat conduction and avoid the obstruction of heat transfer due to the existence of gaps. The second fastener 502 can limit the warping or displacement of the second heat-conducting plate 5 caused by thermal expansion and contraction. At the same time, the double fixation makes the second heat-conducting plate 5, the first heat-conducting plate 2, and the insulation plate 4 form an integrated structure, preventing the components from loosening and ensuring the long-term stable operation of the entire heat-conducting structure. The first heat-conducting plate 2, the insulation plate 4, the second heat-conducting plate 5, and the hot water pipe 1 are connected in sequence for heat conduction. Moreover, the first heat-conducting plate 2 and the second heat-conducting plate 5 are fixedly connected by the first fastener 501, and the second heat-conducting plate 5 and the insulation plate 4 are fixedly connected by the second fastener 502, so that the separation phenomenon between the heat-conducting structures caused by thermal expansion and contraction is weakened.

[0045] Preferably, the pipe locking structure 3 includes multiple positioning seats 301 and multiple elastic cover members 302. The multiple positioning seats 301 are arranged sequentially and at intervals along the laying path of the hot water pipe 1. The positioning seats 301 have positioning grooves 303 adapted to the outer wall of the hot water pipe 1. The hot water pipe 1 is accommodated in the multiple positioning grooves 303 to form multi-point support. Each positioning seat 301 is hinged to at least one elastic cover member 302, and together with the corresponding elastic cover member 302, it covers the hot water pipe 1. The free end of the elastic cover member 302 can be flipped towards the positioning groove 303 to cooperate with the positioning seat 301 to cover the outer wall of the hot water pipe 1. When the second heat-conducting plate 5 is covered above, the elastic cover member 302 is squeezed by the second heat-conducting plate 5 and tightly fits the hot water pipe 1. It should be noted that this structure provides stable support for the hot water pipe 1 through the spaced positioning seats 301. The positioning groove 303 and the elastic cover 302 work together to form a circumferential constraint, which facilitates the embedded installation of the hot water pipe 1 and adapts to the dimensional changes of the hot water pipe 1 due to thermal expansion and contraction through the extrusion deformation of the elastic cover 302, avoiding pipe damage caused by rigid fixation. At the same time, it ensures that the hot water pipe 1 is always in close contact with the wall of the embedded groove 201 of the first heat-conducting plate 2, maintaining efficient heat conduction.

[0046] Preferably, the second heat-conducting plate 5 includes multiple unit plates 503. The two ends of the unit plate 503 along its length are respectively provided with a first overlapping structure 504 and a second overlapping structure 505. The first overlapping structure 504 is provided with a first overlapping groove 506, and the second overlapping structure 505 is provided with a first overlapping protrusion 507. The first overlapping groove 506 is recessed along the thickness direction of the unit plate 503, and the first overlapping protrusion 507 is protruding along the thickness direction of the unit plate 503. The multiple unit plates 503 are distributed sequentially along the length direction of the unit plate 503, and the first overlapping groove 506 of one of two adjacent unit plates 503 is engaged with the first overlapping protrusion 507 of the other. Understandably, this design allows the unit panels 503 to be flexibly combined to cover different areas of the laying area. When splicing, the tight fit between the first overlapping groove 506 and the first overlapping protrusion 507 can eliminate gaps and prevent heat from forming a transmission discontinuity at the splice. At the same time, the overlapping structure can enhance the connection strength between the unit panels 503, prevent relative displacement due to thermal expansion and contraction, and ensure the overall heat conduction uniformity of the second heat-conducting plate 5.

[0047] Preferably, the two ends of the unit panel 503 in the width direction are respectively provided with a third overlapping structure 508 and a fourth overlapping structure 509. The third overlapping structure 508 is provided with a second overlapping groove 511, and the fourth overlapping structure 509 is provided with a second overlapping protrusion 512. The second overlapping groove 511 is recessed along the thickness direction of the unit panel 503, and the second overlapping protrusion 512 is protruding along the thickness direction of the unit panel 503. Multiple unit panels 503 are distributed sequentially along the width direction of the unit panel 503, and in two adjacent unit panels 503, the second overlapping groove 511 of one of them is engaged with the second overlapping protrusion 512 of the other. The unit panels 503 are spliced ​​by the engagement of the second overlapping groove 511 and the second overlapping protrusion 512, which not only facilitates flexible assembly when laying large-area underfloor heating, but also eliminates splicing gaps through the close contact of the overlapping edges in the width direction, avoids the formation of heat transfer discontinuity at the splicing point, and ensures uniform heat distribution of the second heat-conducting plate 5.

[0048] Preferably, the inner walls of the first overlapping groove 506 and the second overlapping groove 511 are both provided with sealing strips. The sealing strips seal the interlocking gap between two adjacent unit plates 503, preventing heat loss from the splicing gap and avoiding localized low ground temperature due to the existence of the gap. They also prevent dust and moisture from entering the gap, preventing the accumulation of dirt in the gap after long-term use from affecting the heat conduction contact. At the same time, the elastic deformation of the sealing strips can adapt to the slight displacement of the unit plate 503 during thermal expansion and contraction, preventing damage at the splice due to rigid friction, and ensuring the overall heat conduction continuity and structural stability of the second heat conduction plate 5.

[0049] Preferably, the second heat-conducting plate 5 has an elongated hole, through which the first fastener 501 passes and is fixedly connected to the first heat-conducting plate 2. The elongated hole extends along the direction of thermal expansion and contraction of the second heat-conducting plate 5, and its length is greater than the diameter of the first fastener 501. This provides compensation space for the first fastener 501 to wobble due to thermal expansion and contraction of the second heat-conducting plate 5 and the first heat-conducting plate 2. It should be noted that the elongated hole provides displacement space for the first fastener 501 along its length, preventing the fastener from bending or breaking due to tensile forces caused by plate deformation, while not affecting the fixing effect of the first fastener 501 on the second heat-conducting plate 5 and the first heat-conducting plate 2, thus ensuring the long-term stability of the thermally conductive connection.

[0050] Preferably, the second fastener 502 includes a bolt 513 and a heat insulation sleeve 514. The bolt 513 passes through the heat insulation sleeve 514, the second heat-conducting plate 5, and the insulation plate 4 sequentially along the thickness direction of the second heat-conducting plate 5. The heat insulation sleeve 514 is fitted around the shank of the bolt 513 and is used to block the heat from the second heat-conducting plate 5 from being transferred to the insulation plate 4 through the bolt 513. The bolt 513 is used to fix the second heat-conducting plate 5 to the insulation plate 4, while the heat insulation sleeve 514 is made of high-temperature resistant heat-insulating material, which can block the direct heat conduction between the second heat-conducting plate 5 and the bolt 513, reducing the heat loss from being transferred to the insulation plate 4 through the metal bolt 513. At the same time, the heat insulation sleeve 514 can buffer the force on the bolt 513 when the plate expands and contracts with temperature, preventing the bolt 513 from loosening, thus balancing the fixing effect and energy saving requirements.

[0051] Preferably, the insulation sleeve 514 is made of nylon. It is understood that nylon possesses multiple characteristics suitable for underfloor heating systems: firstly, its low thermal conductivity effectively blocks the heat from the second heat-conducting plate 5 from being transferred to the insulation board 4 through the metal bolts 513, preventing heat loss and meeting the energy-saving requirements of the underfloor heating system; secondly, nylon has good temperature resistance, can withstand the ambient temperature during underfloor heating operation, and has moderate mechanical strength. When fitted over the bolts 513, it buffers the force exerted on the bolts 513 by the thermal expansion and contraction of the second heat-conducting plate 5, preventing the bolts 513 from loosening. Simultaneously, nylon's corrosion resistance resists slight moisture erosion from the ground, preventing material aging from affecting the insulation effect and ensuring the long-term stable function of the insulation sleeve 514.

[0052] Preferably, the insulation board 4 further includes an elastic positioning strip, which is disposed on the wall of the receiving groove 401 and extends along the length direction of the insulation board 4 to form a continuous elongated structure adapted to the length of the receiving groove 401. When the first heat-conducting plate 2 is placed in the receiving groove 401, the elastic positioning strip is clamped by the first heat-conducting plate 2 and the receiving groove 401, and undergoes elastic deformation due to the clamping force of the two.

[0053] Preferably, the embedding trench 201 includes a straight section 202 and a corner transition section 203, adapting to complex laying scenarios with multiple corners in underfloor heating pipes and extending the service life of the pipes. The straight section 202 extends along the straight laying path of the hot water pipe 1, and its trench wall fits against the outer wall of the straight section 202 of the hot water pipe 1, providing stable support for the hot water pipe 1 in the straight direction. The corner transition section 203 is located at the corner of the hot water pipe 1, and its inner wall is arc-shaped to match the curvature of the corner of the hot water pipe 1, ensuring that the corner of the hot water pipe 1 can be naturally embedded in the trench. The inner wall of the corner transition section 203 is provided with an elastic buffer layer, which is made of heat-resistant elastic material, has a uniform thickness, and fits against the outer wall of the corner of the hot water pipe 1.

[0054] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A heat-conducting structure for a floor heating system, characterized in that, include: Hot water pipe (1), the hot water pipe (1) is used to transport heat-conducting fluid and dissipate heat to the surroundings; The first heat-conducting plate (2) has a buried groove (201) which extends along the laying path of the hot water pipe (1). The hot water pipe (1) is housed in the buried groove (201), and the first heat-conducting plate (2) is thermally connected to the hot water pipe (1). Pipe locking structure (3) is provided in the buried groove (201) and locks the hot water pipe (1) to the first heat-conducting plate (2); The insulation board (4) is provided with a receiving groove (401), and the first heat-conducting plate (2) is received in the receiving groove (401); The second heat-conducting plate (5) is disposed above the hot water pipe (1), the first heat-conducting plate (2) and the insulation plate (4), and is supported by the first heat-conducting plate (2) and the insulation plate (4); the second heat-conducting plate (5) is connected to a first fastener (501) and a second fastener (502), the first fastener (501) fixes the second heat-conducting plate (5) and the first heat-conducting plate (2) together; the second fastener (502) fixes the second heat-conducting plate (5) and the insulation plate (4) together.

2. The heat-conducting structure for a floor heating system according to claim 1, characterized in that, The pipe locking structure (3) includes multiple positioning seats (301) and multiple elastic cover members (302); the multiple positioning seats (301) are arranged sequentially at intervals along the laying path of the hot water pipe (1); the positioning seats (301) are provided with positioning grooves (303), the hot water pipe (1) is accommodated in the multiple positioning grooves (303), each positioning seat (301) is hinged to at least one elastic cover member (302), and cooperates with the corresponding elastic cover member (302) to cover the hot water pipe (1), the elastic cover member (302) is squeezed by the second heat-conducting plate (5).

3. The heat-conducting structure for a floor heating system according to claim 1, characterized in that, The second heat-conducting plate (5) includes multiple unit plates (503). Each end of the unit plate (503) along its length is provided with a first overlapping structure (504) and a second overlapping structure (505). The first overlapping structure (504) is provided with a first overlapping groove (506), and the second overlapping structure (505) is provided with a first overlapping protrusion (507). The first overlapping groove (506) is recessed along the thickness direction of the unit plate (503), and the first overlapping protrusion (507) is protruding along the thickness direction of the unit plate (503). The multiple unit plates (503) are distributed sequentially along the length direction of the unit plate (503), and in two adjacent unit plates (503), the first overlapping groove (506) of one of them is engaged with the first overlapping protrusion (507) of the other.

4. A heat-conducting structure for a floor heating system according to claim 3, characterized in that, The unit plate (503) has a third overlapping structure (508) and a fourth overlapping structure (509) at both ends in the width direction. The third overlapping structure (508) has a second overlapping groove (511) and the fourth overlapping structure (509) has a second overlapping protrusion (512). The second overlapping groove (511) is recessed along the thickness direction of the unit plate (503) and the second overlapping protrusion (512) is protruding along the thickness direction of the unit plate (503). Multiple unit plates (503) are distributed sequentially along the width direction of the unit plate (503), and the second overlapping groove (511) of one of two adjacent unit plates (503) is engaged with the second overlapping protrusion (512) of the other.

5. A heat-conducting structure for a floor heating system according to claim 4, characterized in that, The inner walls of the first overlapping groove (506) and the second overlapping groove (511) are both provided with sealing strips, which seal the fitting gap between two adjacent unit plates (503).

6. A heat-conducting structure for a floor heating system according to claim 1, characterized in that, The second heat-conducting plate (5) has an elongated hole, and the first fastener (501) passes through the elongated hole and is fixedly connected to the first heat-conducting plate (2); the elongated hole is used to provide compensation space for the first fastener (501) to shake due to the thermal expansion and contraction of the second heat-conducting plate (5) and the first heat-conducting plate (2).

7. A heat-conducting structure for a floor heating system according to claim 1, characterized in that, The second fastener (502) includes a bolt (513) and a heat insulation sleeve (514). The bolt (513) passes through the heat insulation sleeve (514), the second heat-conducting plate (5), and the insulation plate (4) in sequence along the thickness direction of the second heat-conducting plate (5). The heat insulation sleeve (514) is sleeved around the shank of the bolt (513). The heat insulation sleeve (514) is used to block the heat of the second heat-conducting plate (5) from being lost through the insulation plate (4).

8. A heat-conducting structure for a floor heating system according to claim 7, characterized in that, The heat insulation sleeve (514) is made of nylon.

9. A heat-conducting structure for a floor heating system according to claim 1, characterized in that, The insulation board (4) also includes an elastic positioning strip, which is disposed on the groove wall of the receiving groove (401) and extends along the length direction of the insulation board (4); the elastic positioning strip is held by the first heat-conducting plate (2) and the receiving groove (401).

10. A heat-conducting structure for a floor heating system according to claim 1, characterized in that, The burial trench (201) includes a straight section (202) and a corner transition section (203). The straight section (202) extends along the straight laying path of the hot water pipe (1). The corner transition section (203) is located at the corner of the hot water pipe (1). The inner wall of the corner transition section (203) is provided with an elastic buffer layer, which is attached to the outer wall of the corner of the hot water pipe (1).

Images