A rapid heating heating device and an intelligent toilet
Patent Information
- Application Number
- CN202520711964.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-04-15
AI Technical Summary
然而,现有技术存在两个显著的技术瓶颈:首先,传统加热装置采用与座圈形状完全匹配的一体式环形结构,这种刚性设计导致加热装置往往只能适配特定尺寸的座圈,难以适配于不同尺寸的马桶座圈,严重制约了产品的通用性和规模化生产效益
[0023]The present invention offers the following advantages: The heating device employs an innovative dual-piece heating structure, replacing the traditional integrated ring heating device with a separate first and second heating film. By adjusting the spacing or angle between the two heating films, it achieves excellent matching with various toilet seat sizes, significantly improving the product's versatility. Furthermore, by optimizing the structure of the first and second heating films, the heat transfer efficiency of the heating device is maximized. The insulation layer effectively prevents heat transfer to non-target areas (i.e., downward transfer), allowing the heat generated by the heating device to be transferred upwards, achieving precise heating. This enables the upper surface of the toilet seat to rapidly reach the target temperature, effectively improving thermal efficiency, reducing heat loss, and significantly shortening the waiting time for the target area to reach a comfortable temperature. This fundamentally solves the technical problems of high heat loss and slow heating in traditional toilet seat heating devices.
Smart Images

Figure CN224697909U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smart toilet technology, and in particular to a rapid heating device and a smart toilet. Background Technology
[0002] Smart toilets, as a significant innovative product in the modern bathroom industry, have gradually become more widespread and are favored by consumers. Among their features, heated seat is one of the core functions of smart toilets, significantly enhancing user comfort, especially during cold seasons.
[0003] Currently, the mainstream heating solution for smart toilets on the market involves embedding a ring-shaped heating element inside the seat ring, using resistance heating to regulate temperature. However, existing technology suffers from two significant bottlenecks: First, traditional heating elements employ a one-piece ring structure perfectly matched to the seat ring shape. This rigid design often limits the heating element to specific seat ring sizes, making it difficult to adapt to toilet seats of different sizes, severely restricting product versatility and economies of scale in mass production. Second, existing heating elements primarily use linear heating wires fixed to the inner wall of the seat ring as the heat source. Heat is transferred from the inside of the seat ring to its outer surface through heat transfer, providing warmth to the user. However, during the heating process, the heat generated by the heating wire diffuses outwards, not only upwards to the contact surface requiring heating (the upper surface of the seat ring) but also diffusing to non-target areas (such as the lower surface of the seat ring). This ineffective heat dissipation leads to low thermal efficiency, resulting in a longer waiting time for the target area to reach a comfortable temperature (30-40°C), causing energy waste and negatively impacting the user experience. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to propose a rapid heating device that can quickly heat the target area of the toilet seat to the required temperature, and improve the versatility of the heating device so that it can be adapted to various sizes of toilet seats.
[0005] The purpose of this invention is also to provide an intelligent toilet that uses the aforementioned heating device to achieve rapid heating.
[0006] To solve the above-mentioned technical problems, this utility model provides a rapid heating device, including a first heating film and a second heating film, wherein the first heating film and the second heating film are symmetrically arranged and connected in series;
[0007] The first heating film and the second heating film each include an adhesive layer, a first insulating layer, a heating layer, a second insulating layer and a heat insulation layer arranged sequentially.
[0008] As an improvement to the above technical solution, the heating layer includes an adhesive material and a heating element embedded in the adhesive material, wherein the heating element is arranged in a serpentine, meandering pattern.
[0009] The first heating film and the second heating film are both arc-shaped.
[0010] As an improvement to the above technical solution, the heating element includes a first heating wire and a second heating wire, the starting end of the first heating wire and the starting end of the second heating wire are connected, and the connection point forms a first bonding area; the terminating end of the first heating wire and the terminating end of the second heating wire are connected, and the connection point forms a second bonding area.
[0011] The first heating wire and the second heating wire are arranged in a serpentine manner in the front and rear regions of the heating layer, respectively.
[0012] As an improvement to the above technical solution, the thicknesses of the first heating film and the second heating film are 0.24mm to 0.8mm, respectively.
[0013] As an improvement to the above technical solution, the thickness of the adhesive layer is 0.05mm to 0.15mm;
[0014] The thickness of the first insulating layer is 0.03 mm to 0.15 mm;
[0015] The thickness of the heating layer is 0.08–0.2 mm;
[0016] The thickness of the second insulating layer is 0.03–0.15 mm;
[0017] The thickness of the insulation layer is 0.05 to 0.15 mm.
[0018] As an improvement to the above technical solution, the thicknesses of the first heating film and the second heating film are 0.4mm to 0.5mm, respectively.
[0019] As an improvement to the above technical solution, the material of the heat insulation layer is one of nano-aerogel film, microporous polyimide film and porous vacuum silicon film.
[0020] As an improvement to the above technical solution, the material of the heating element is one of graphene, elemental metal, and metal alloy.
[0021] As an improvement to the above technical solution, the materials of the first insulating layer and the second insulating layer are PET film or PI film, respectively.
[0022] Accordingly, this utility model also provides a smart toilet with the aforementioned rapid heating device.
[0023] The present invention offers the following advantages: The heating device employs an innovative dual-piece heating structure, replacing the traditional integrated ring heating device with a separate first and second heating film. By adjusting the spacing or angle between the two heating films, it achieves excellent matching with various toilet seat sizes, significantly improving the product's versatility. Furthermore, by optimizing the structure of the first and second heating films, the heat transfer efficiency of the heating device is maximized. The insulation layer effectively prevents heat transfer to non-target areas (i.e., downward transfer), allowing the heat generated by the heating device to be transferred upwards, achieving precise heating. This enables the upper surface of the toilet seat to rapidly reach the target temperature, effectively improving thermal efficiency, reducing heat loss, and significantly shortening the waiting time for the target area to reach a comfortable temperature. This fundamentally solves the technical problems of high heat loss and slow heating in traditional toilet seat heating devices. Attached Figure Description
[0024] Figure 1 This is an etched image of the heating layer of a heating device according to an embodiment of this utility model;
[0025] Figure 2 yes Figure 1 A schematic diagram of the circuit connection of the heating device in the embodiment shown.
[0026] Figure 3 yes Figure 1 A cross-sectional view of the first heating film in the heating device of the illustrated embodiment;
[0027] In the figure: First heating film 1, Second heating film 2, Adhesive layer 3, First insulation layer 4, Heating layer 5, Second insulation layer 6, Heat insulation layer 7, Adhesive material 51, Heating element 52, First heating wire 521, Second heating wire 522, First bonding area 523, Second bonding area 524. Detailed Implementation
[0028] 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. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "front", "rear", 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, they should not be construed as limitations on this utility model.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] like Figures 1 to 3 As shown, this embodiment discloses a rapid heating device, including a first heating film 1 and a second heating film 2, wherein the first heating film 1 and the second heating film 2 are symmetrically arranged and connected in series;
[0032] The first heating film 1 and the second heating film 2 each include an adhesive layer 3, a first insulating layer 4, a heating layer 5, a second insulating layer 6 and a heat insulation layer 7 arranged sequentially.
[0033] This invention's heating device employs an innovative dual-piece heating structure, replacing the traditional integrated ring heating device with a separate first heating film 1 and a second heating film 2. During actual assembly, the first heating film 1 and the second heating film 2 can be independently installed on the left and right sides inside the toilet seat. The dual-piece structure can be flexibly adjusted according to the specific dimensions of different toilet seat models. By adjusting the spacing or angle between the two heating films, it achieves a good match with various seat sizes, significantly improving the product's versatility. Furthermore, the separate design simplifies the installation process and reduces assembly difficulty, making it particularly suitable for standardized production line operations of different seat sizes. In addition, if a single heating film malfunctions, only the corresponding module needs to be replaced, eliminating the need for overall replacement and significantly reducing maintenance costs. This dual-piece heating structure effectively solves the technical problems of poor adaptability and low versatility of traditional integrated ring heating devices, providing a more flexible solution for intelligent toilet seat heating systems.
[0034] During actual assembly, the first heating film 1 and the second heating film 2 are firmly fixed to the upper inner walls of the left and right sides of the toilet seat using the adhesive layer 3. This installation method ensures that the heating film and the seat contact surface are tightly fitted, maximizing heat conduction efficiency. Furthermore, since both the first heating film 1 and the second heating film 2 have a heat insulation layer 7 at their bottom, the heat insulation layer 7 effectively blocks heat transfer to non-target areas (i.e., downward transfer), allowing the heat generated by the first heating film 1 and the second heating film 2 to be transferred upwards, achieving precise heating. This allows the upper surface of the toilet seat to quickly heat up to the target temperature, effectively improving thermal efficiency, reducing heat loss, and significantly shortening the waiting time for the target area to reach a comfortable temperature (30℃~40℃). This fundamentally solves the technical problems of large heat loss and slow heating in traditional toilet seat heating devices.
[0035] By connecting the first heating film 1 and the second heating film 2 in series, the series structure ensures that the current passing through the two heating films is the same, which can improve the heat uniformity of the two heating films. In addition, the series structure increases the total resistance of the heating device, which can further improve the heating speed of the heating device.
[0036] Preferably, the heating device is further provided with a fuse, a temperature detector and a temperature protector (not shown in the figure).
[0037] In one embodiment, the heating layer 5 includes an adhesive material 51 and a heating element 52 embedded within the adhesive material 51. Utilizing the properties of the adhesive material 51, not only can the heating element 52 be securely fixed, but a tight connection can also be effectively achieved between the heating layer 5, the first insulating layer 4, and the second insulating layer 6. After the adhesive material 51 has cured, the first insulating layer 4, the heating layer 5, and the second insulating layer 6 together form a sealed and highly insulating sandwich structure, which can significantly prevent external moisture from contacting the heating element 52, while greatly enhancing the overall insulation performance, thereby ensuring the safe and stable operation of the heating device.
[0038] Preferably, the adhesive material 51 is selected from materials with good thermal stability and insulating properties. In some embodiments, the adhesive material 51 may be a high-temperature resistant epoxy resin, but it is not limited thereto.
[0039] In one embodiment, the first heating film 1 and the second heating film 2 are respectively arc-shaped; the symmetrical and double arc design not only allows the first heating film 1 and the second heating film 2 to better fit the shape of the toilet seat, but also allows the first heating film 1 and the second heating film 2 to more accurately match the human contact area after being installed inside the toilet seat, so that the human contact area on the toilet seat is heated quickly, reducing heat loss and improving heating efficiency.
[0040] In one embodiment, the heating element 52 is arranged in a serpentine, meandering pattern on the heating layer 5. This serpentine (S-shaped) arrangement ensures uniform heating of the heating device and avoids localized overheating.
[0041] In one embodiment, the heating element 52 includes a first heating wire 521 and a second heating wire 522. The starting end of the first heating wire 521 and the starting end of the second heating wire 522 are connected, and a first bonding area 523 is formed at the connection. The terminating end of the first heating wire 521 and the terminating end of the second heating wire 522 are connected, and a second bonding area 524 is formed at the connection.
[0042] The first heating wire 521 and the second heating wire 522 are arranged in a serpentine manner in the front and rear regions of the heating layer 5, respectively.
[0043] The first heating wire 521 and the second heating wire 522 are arranged in a serpentine pattern at different locations on the heating layer 5, covering the entire heating layer 5. This arrangement enables rapid and uniform heating over a large area, distributing heat evenly across the area covered by the heating layer 5. It avoids localized overheating or underheating, improving the uniformity and stability of heating, and enhancing the overall performance and reliability of the heating device. The serpentine arrangement allows for increased heating wire length within a limited space, thereby increasing heating power and heating speed without significantly increasing volume. It also effectively utilizes space, resulting in a more compact heating element structure. Furthermore, this arrangement increases the contact area between the heating element 52 and the inner wall of the seat ring, facilitating rapid heat dissipation and improving heat dissipation efficiency, thus enabling the upper surface of the seat ring to quickly reach the target temperature.
[0044] In one embodiment, the thicknesses of the first heating film 1 and the second heating film 2 are 0.24 mm to 0.8 mm, respectively. This thickness range allows for rapid heat conduction, enabling the heat generated by the first heating film 1 and the second heating film 2 to be quickly transferred to the upper surface of the toilet seat, further shortening the heating waiting time and avoiding the heating lag caused by excessive thickness. Furthermore, this thickness range maintains sufficient mechanical strength, ensuring that the heating films do not deform or crack during long-term use, while also maintaining good flexibility to adapt to the curved surface of the toilet seat.
[0045] In one embodiment, the thickness of the adhesive layer 3 is 0.05 mm to 0.15 mm;
[0046] The thickness of the first insulating layer 4 is 0.03 mm to 0.15 mm;
[0047] The thickness of the heating layer 5 is 0.08–0.2 mm;
[0048] The thickness of the second insulating layer 6 is 0.03–0.15 mm;
[0049] The thickness of the heat insulation layer 7 is 0.05–0.15 mm;
[0050] The thickness of each layer is set within a specific range, which is conducive to rapid heat conduction, allowing heat to be quickly transferred to the upper surface of the toilet seat, and ensuring the safe and stable operation of the heating device.
[0051] In one embodiment, the thicknesses of the first heating film 1 and the second heating film 2 are 0.4 mm to 0.5 mm, respectively.
[0052] In one embodiment, the material of the heat insulation layer 7 is one of nano-aerogel film, microporous polyimide film, and porous vacuum silicon film. These all have good heat insulation and temperature resistance properties, and also have a certain degree of flexibility to adapt to curved seat rings.
[0053] In one embodiment, the heating element 52 is made of graphene, a metallic element, or a metal alloy. In some embodiments, the metallic element may be copper, and the metal alloy may be a nickel-chromium alloy, an iron-chromium-aluminum alloy, a copper-nickel alloy, etc.
[0054] In one embodiment, both the first insulating layer 4 and the second insulating layer 6 are made of PET film or PI film. PI film, or polyimide film, is a high-performance film material with excellent high-temperature resistance, radiation resistance, chemical corrosion resistance, and electrical insulation properties, and can be used for a long time in a temperature range of -269°C to 400°C.
[0055] In some embodiments, the material of the adhesive layer 3 is double-sided adhesive.
[0056] Accordingly, this embodiment also discloses a smart toilet, including the aforementioned rapid heating device.
[0057] Specifically, the smart toilet also includes a seat ring, and a heating element is installed inside the seat ring. Preferably, the heating element is attached to the upper inner wall of the seat ring.
[0058] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.
Claims
1. A rapid heating device, characterized in that, It includes a first heating film and a second heating film, which are symmetrically arranged and connected in series; The first heating film and the second heating film each include an adhesive layer, a first insulating layer, a heating layer, a second insulating layer and a heat insulation layer arranged sequentially.
2. The rapid heating device according to claim 1, characterized in that, The heating layer includes an adhesive material and a heating element embedded in the adhesive material, wherein the heating element is arranged in a serpentine, meandering pattern. The first heating film and the second heating film are both arc-shaped.
3. The rapid heating device according to claim 2, characterized in that, The heating element includes a first heating wire and a second heating wire. The starting ends of the first heating wire and the second heating wire are connected to form a first bonding area at the connection point. The ending ends of the first heating wire and the second heating wire are connected to form a second bonding area at the connection point. The first heating wire and the second heating wire are arranged in a serpentine manner in the front and rear regions of the heating layer, respectively.
4. The rapid heating device according to claim 1, characterized in that, The thicknesses of the first heating film and the second heating film are 0.24 mm and 0.8 mm, respectively.
5. The rapid heating device according to claim 4, characterized in that, The thickness of the adhesive layer is 0.05mm to 0.15mm; The thickness of the first insulating layer is 0.03mm to 0.15mm; The thickness of the heating layer is 0.08~0.2mm; The thickness of the second insulating layer is 0.03~0.15mm; The thickness of the insulation layer is 0.05~0.15mm.
6. The rapid heating device according to any one of claims 1-5, characterized in that, The thicknesses of the first heating film and the second heating film are 0.4 mm and 0.5 mm, respectively.
7. The rapid heating device according to claim 1, characterized in that, The material of the heat insulation layer is one of nano-aerogel film, microporous polyimide film, and porous vacuum silicon film.
8. The rapid heating device according to claim 2, characterized in that, The heating element is made of one of the following materials: graphene, elemental metal, and metal alloy.
9. The rapid heating device according to claim 1, characterized in that, The materials of the first insulating layer and the second insulating layer are PET film or PI film, respectively.
10. A smart toilet, characterized in that, Including the rapid heating device as described in any one of claims 1-9.