Floor heating system special for toilet
The three-layer structure design of the bathroom-specific underfloor heating system solves the problem of bathroom waterproofing, achieving effective waterproofing and efficient heating in humid environments, and improving the stability and comfort of the underfloor heating system.
Patent Information
- Application Number
- CN202423169211.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Traditional underfloor heating cannot be installed in bathrooms due to waterproofing issues, resulting in poor heating performance and the risk of leaks, affecting comfort and the stability of the underfloor heating system.
It adopts a three-layer structure design, including a base layer, a wiring layer, a heat-conducting layer and an outer shell. A polyurethane filling layer provides thermal insulation and moisture barrier, and the outer shell has water-proof grooves and through holes to allow moisture to drain out. Combined with a sealant layer, it ensures waterproof performance.
It effectively prevents water leakage in humid environments, improves the stability and service life of the underfloor heating system, and provides a comfortable heating effect. It is easy to install and has a low cost.
Smart Images

Figure CN223768968U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bathroom insulation and waterproofing technology, and in particular to a special floor heating system for bathrooms. Background Technology
[0002] As people become more aware of underfloor heating and pursue greater home comfort, many families choose to install it for home heating. The technology for installing underfloor heating in areas such as the living room, dining room, bedroom, and study is already mature. However, the bathroom (especially the shower area), which most needs heating, often cannot have underfloor heating installed due to unresolved waterproofing issues. Given the inability to resolve waterproofing problems, the conventional approach is to install water-based underfloor heating in the living room, dining room, bedroom, and study, electric underfloor heating in the dry area of the bathroom, and no underfloor heating in the wet area (shower area), instead using auxiliary heating measures such as bathroom heaters or fan heaters.
[0003] Using auxiliary heating methods can create a baking sensation, with the head hot and the feet cold, resulting in poor comfort. Furthermore, in damp environments such as bathrooms, traditional underfloor heating systems and auxiliary heating equipment are prone to reduced heating efficiency due to moisture penetration. Additionally, traditional water-based heating methods are prone to pipe leaks, affecting the normal use of the underfloor heating system and potentially causing damage to the building structure. Utility Model Content
[0004] In order to address the technical deficiencies mentioned in the background section, the purpose of this utility model is to provide a special floor heating system for bathrooms. Through a special three-layer structure design, it effectively solves the problem of water leakage in the floor heating system in the humid environment of the bathroom and improves the waterproof performance of the floor heating system.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A bathroom-specific underfloor heating system includes a concrete base layer, a wiring layer laid on the base layer, and a heat-conducting layer laid on the wiring layer. A polyurethane filling layer is filled between the wiring layer and the heat-conducting layer, and the wiring layer and the heat-conducting layer are wrapped with an outer shell. Multiple water-proof grooves are formed on the surface of the outer shell, and a through hole is formed between two adjacent water-proof grooves. The water-proof grooves are connected to the bathroom drainage groove through the through hole.
[0007] Preferably, the outer casing is made of stainless steel, and the outer surface of the outer casing is coated with a hydrophobic layer.
[0008] Preferably, the outer shell is further covered with a layer of floor tiles, and the joint between the floor tile layer and the outer shell is coated with a sealant layer.
[0009] Preferably, the cable layer is connected to a temperature limiter for temperature control, and the maximum heating temperature of the temperature limiter does not exceed 60°C.
[0010] Preferably, the wiring layer uses a heating wire with heating function, the heating wire is coiled in a serpentine shape, and one end of the heating wire is connected to the power supply.
[0011] Preferably, the thickness of the polyurethane filler layer is 10-30 mm.
[0012] Preferably, the heat-conducting layer is made of stainless steel, and the thickness of the heat-conducting layer is set to 5-8 mm.
[0013] Preferably, the sealant layer is silicone sealant, and the silicone sealant is evenly applied to the gaps at the joints of the floor tiles.
[0014] In summary, the beneficial effects of this utility model are as follows:
[0015] This utility model of a bathroom-specific underfloor heating system utilizes electric heating, which is not only simple to install and requires no pipe maintenance, but also heats up quickly and is cost-effective. Furthermore, its three-layer waterproof structure effectively prevents leaks in the humid bathroom environment, improving the stability and lifespan of the underfloor heating system. Simultaneously, this design also boasts advantages such as simple structure and convenient installation, meeting the needs of both wet and dry areas of the bathroom. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of the bathroom-specific floor heating system of this utility model;
[0017] Figure 2 This is an exploded view of the utility model of a bathroom-specific underfloor heating system;
[0018] Figure 3 yes Figure 2 Enlarged view of the inner shell structure;
[0019] Figure 4 This is a cross-sectional view of the bathroom-specific floor heating system of this utility model.
[0020] Explanation of the reference numerals in the figure:
[0021] 1. Base layer; 2. Cable layer; 3. Thermal conductive layer; 4. Polyurethane filling layer; 5. Outer shell; 51. Waterproof groove; 52. Through hole; 6. Floor tile layer; 7. Temperature limiter. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0023] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.
[0024] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.
[0025] The following is in conjunction with the appendix Figure 1-4 The present invention provides a more detailed description of an embodiment of a bathroom-specific floor heating system.
[0026] A bathroom-specific floor heating system includes a concrete base layer 1, a wiring layer 2 laid on the base layer 1, and a heat-conducting layer 3 laid on the wiring layer 2. A polyurethane filling layer 4 is filled between the wiring layer 2 and the heat-conducting layer 3. The wiring layer 2 and the heat-conducting layer 3 are covered with an outer shell 5. Multiple water-proof grooves 51 are formed on the surface of the outer shell 5. A through hole 52 is formed between two adjacent water-proof grooves 51. The water-proof grooves 51 are connected to the bathroom drainage groove through the through hole 52.
[0027] Specifically, during bathroom use, since bathrooms are generally divided into dry and wet areas, moisture generated in the wet area can easily seep into the underfloor heating system, causing it to become damp and affecting its heating function. Therefore, in this invention, when laying the underfloor heating, the wiring layer 2 is installed on the base layer 1 using electric heating. At the same time, a polyurethane filling layer 4 is used to fill the space between the wiring layer 2 and the heat-conducting layer 3, and the outer shell 5 is used to wrap the wiring layer 2 and the heat-conducting layer 3, providing double protection. The heat insulation and moisture-proofing effect of the polyurethane filling layer 4 ensures the thermal efficiency of the underfloor heating system and provides a comfortable heating environment. Meanwhile, multiple water-proof grooves 51 are opened on the surface of the outer shell 5, so that when the floor tiles are laid on the outer shell 5, a hollow state is formed between the floor tiles and the water-proof grooves 51. When water seeps in along the floor tiles, the water-proof grooves 51 can collect the water and discharge it through the through holes 52 along the bathroom drain. This allows the underfloor heating system to maintain good waterproof performance even in a humid bathroom environment, effectively preventing water leakage.
[0028] In this embodiment, the outer shell 5 is made of stainless steel, and the outer surface of the outer shell 5 is coated with a hydrophobic layer.
[0029] Specifically, the outermost protective layer 5 not only supports the entire weight but also acts as a barrier to prevent moisture intrusion. Made of stainless steel, its robustness and waterproofness are significantly enhanced. To further improve its waterproofing, a hydrophobic layer is coated on the outer surface of the outer shell 5. This hydrophobic layer is made of one of the following materials: polyolefin, polycarbonate, polyamide, or polyacrylonitrile. All of these materials have hydrophobic properties, preventing moisture from penetrating into the wiring layer 2. Thus, the outer shell 5, as the outermost protective layer of the underfloor heating system, not only enhances the overall structural strength but also possesses excellent corrosion resistance, resisting the dampness and chemical erosion of the bathroom environment.
[0030] In this embodiment, the outer shell 5 is also covered with a floor tile layer 6, and a sealant layer is applied to the connection between the floor tile layer 6 and the outer shell 5.
[0031] Specifically, in order to prevent moisture from seeping in along the gaps between the floor tiles, a sealant layer is installed at the connection between the floor tile layer 6 and the outer shell 5. This sealant layer can quickly fill and seal the area, thereby preventing moisture from entering the underfloor heating system.
[0032] In this embodiment, a temperature limiter 7 for temperature control is connected to the ribbon cable layer 2. The maximum temperature heated by the temperature limiter 7 does not exceed 60°C. The ribbon cable layer 2 uses a heating wire with heating function. The heating wire is coiled in a serpentine shape, and one end of the heating wire is connected to the power supply.
[0033] Specifically, since the underfloor heating in this utility model uses electric heating, a heating wire is used in the wiring layer 2 for heating. In order to better control the heating temperature of the heating wire, a thermostat 7 is connected to regulate the heating temperature, so that the heating temperature can be adjusted according to the actual needs of the user. The thermostat 7 can control the heating temperature of the heating wire to not exceed 60°C. The purpose of this setting is to prevent the heating wire from continuously heating and causing the underfloor heating temperature to be too high, which could easily cause burns to the user.
[0034] In this embodiment, the filling thickness of the polyurethane filling layer 4 is 10-30 mm.
[0035] Specifically, the polyurethane filling layer 4 has good thermal insulation and moisture insulation properties, which can effectively isolate the ground moisture from eroding the heating wire. At the same time, the thickness of the polyurethane filling is set to 10-30mm. At this thickness, the polyurethane filling layer 4 can ensure sufficient thermal insulation and moisture insulation effect, and avoid affecting the heat conduction function of the heating wire.
[0036] In this embodiment, the heat-conducting layer 3 is made of stainless steel, and the thickness of the heat-conducting layer 3 is set to 5-8 mm.
[0037] Specifically, the stainless steel heat-conducting layer 3 can prevent rust caused by moisture immersion, thus affecting its heat conduction function. At the same time, setting the thickness of the heat-conducting layer 3 to 5-8mm ensures strength without excessively increasing the weight of the entire underfloor heating system.
[0038] In this embodiment, the sealant layer is silicone sealant, and the silicone sealant is evenly applied to the gaps at the joints of the floor tile layers 6.
[0039] Specifically, in order to seal the gap between the floor tile layer 6 and the outer shell layer 5 and prevent moisture penetration, a high-temperature resistant and aging-resistant silicone sealant should be selected to ensure a long-term sealing effect, thereby improving the waterproof effect of the underfloor heating.
[0040] The working principle of this utility model:
[0041] First, lay heating wires on the bathroom floor. The arrangement of the heating wires can be reasonably arranged according to the design drawings and heat dissipation requirements, such as evenly spaced or coiled into a serpentine structure. A certain distance should be maintained between the wires to avoid mutual vibration when energized, and to ensure uniform heat distribution. Next, fill the heating wires with a polyurethane filling layer 4. The polyurethane filling layer 4 can be injected by pumping to ensure uniform filling without gaps. The thickness of the polyurethane filling layer 4 should be adjusted according to the actual situation to achieve the best heat insulation and moisture-proof effect. Then, install the heat-conducting layer 3. The heat-conducting layer 3 can be fixed to the polyurethane filling layer 4 by welding or riveting to ensure a firm connection with the underlying structure. At the same time, install the outer shell 5 on the outside of the heat-conducting layer 3 and the wiring layer 2. The edges of the outer shell 5 should be flat to avoid sharp edges scratching the floor tile layer 6 or causing water leakage. Finally, apply silicone sealant between the floor tile layer 6 and the outer shell 5. The sealant should be applied evenly to cover the entire contact surface to ensure a good sealing effect. After the sealant dries, the underfloor heating system is installed.
[0042] This utility model of a bathroom-specific underfloor heating system achieves effective waterproofing against the humid environment of the bathroom through a three-layer structure design: a bottom layer (wiring layer 2), a middle layer (heat-conducting layer 3), and an outer shell 5. This design not only improves the comfort of the bathroom but also provides additional waterproof protection for the building, making it of significant practical value.
[0043] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A floor heating system for a bathroom, comprising a base layer made of concrete, a wire layer laid on the base layer, and a heat conducting layer laid on the wire layer, characterized in that, The polyurethane filling layer is filled between the wire arranging layer and the heat conducting layer, and the wire arranging layer and the heat conducting layer are wrapped by the shell, a plurality of water separation grooves are arranged on the surface of the shell, a through hole is arranged between two adjacent water separation grooves, and the water separation grooves are communicated with the drain groove of the bathroom through the through hole.
2. The floor heating system for a bathroom according to claim 1, wherein The shell is made of stainless steel, and the outer surface of the shell is coated with a hydrophobic layer.
3. The floor heating system for a bathroom according to claim 2, wherein The shell is further covered with a floor tile layer, and the joint between the floor tile layer and the shell is coated with a sealant layer.
4. The floor heating system for a bathroom according to claim 3, wherein A temperature limiter for temperature control is connected to the wire arranging layer, and the maximum temperature of the temperature limiter after heating is not more than 60℃.
5. The floor heating system for a bathroom according to claim 4, wherein The wire arranging layer adopts a heating wire with a heating function, the heating wire is arranged in a serpentine shape, and one end of the heating wire is connected to a power supply.
6. The floor heating system for a bathroom according to claim 5, wherein The filling thickness of the polyurethane filling layer is 10-30mm.
7. The floor heating system for a bathroom according to claim 6, wherein The heat conducting layer is made of stainless steel, and the thickness of the heat conducting layer is set to 5-8mm.
8. The floor heating system for a bathroom according to claim 7, wherein The sealant layer is silicone sealant, and the silicone sealant is evenly applied in the gap between the floor tile layers.