Heating type pedestal pan seat ring based on organic conductive polymer

Abstract

The invention relates to the technical field of pedestal pans, and discloses a heating type pedestal pan seat ring based on an organic conductive polymer. The heating type pedestal pan seat ring comprises a seat ring body and a heating device, the insulating protective layer is positioned on the upper surface of the seat ring body; and the organic conductive polymer heating layer is positioned between the seat ring body and the insulating protective layer. According to the heating type pedestal pan seat ring, the organic conductive polymer is adopted as the heating layer, the effect that the heating type pedestal pan seat ring is rapidly heated to the comfortable temperature (30 DEG C or above) within 5 s is achieved, the heating efficiency is high, and based on the self-temperature-limiting characteristic (smaller than or equal to 45 DEG C) of the organic conductive polymer, the heating type pedestal pan seat ring is not prone to falling off under the long-time heating condition. Compared with the prior art, the heating type pedestal pan seat ring has the advantages that the heating temperature can still be kept within a proper heating temperature range, high temperature and flammable safety risks are effectively avoided, safety is high, and the heating type pedestal pan seat ring is simple in structure, free of complex wiring, low in cost, low in energy consumption and capable of better meeting the requirements of consumers for high-quality products.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of toilet seats, in particular to a heating toilet seat based on organic conductive polymer. BACKGROUND

[0002] Traditional toilet seats are generally made of hard plastic materials, with smooth surfaces and a cold touch. When people use the toilet in a cold environment, their skin will directly contact the toilet, which can easily cause discomfort. The existing technology mainly solves this problem by arranging electric heating coils or electric heating tubes in the toilet cover or seat. However, this method has the following defects: ① Due to the high upper limit of resistance wire heating temperature, there is a risk of overheating or burning, so temperature threshold needs to be set for on-off control, and automatic power-off is needed to stop heating according to the environmental temperature, so as to avoid seat overheating and other potential safety problems; ② The traditional resistance seat heating method has the problems of slow heating and long preheating time, and users need to wait for a long time to feel warm; ③ The traditional heating method needs complex wiring and large-area aluminum foil assistance, resulting in complicated structure, high process cost, and inconvenient disassembly and assembly, which is not conducive to the cleaning of the seat.

[0003] CN 114847790 A discloses an energy-saving intelligent semiconductor heat pump toilet gasket, which includes a gasket body, a control module, a semiconductor refrigerating sheet, a heat exchanger, and a cooling assembly. The control module controls the working state of the semiconductor refrigerating sheet and controls the temperature of the gasket at a set temperature. The heat exchanger compensates or transfers the heat of the non-working surface of the semiconductor refrigerating sheet. This scheme needs to use semiconductor refrigerating sheets, micro-channel heat exchangers, and other elements, which have complex structure and high manufacturing cost, and are not conducive to the popularization and use of products. CN 206239321 U proposes a rapid heating physiotherapy toilet gasket based on graphene material. Based on the heating principle of graphene heating sheet, the entire gasket is heated at a low voltage (5-10V), which not only solves the problem of cold toilet in winter, but also has the function of health care through heat therapy. However, this scheme uses a large area of graphene material to ensure heating efficiency, resulting in high cost of the gasket, which does not have commercial prospects. CN 211299761 U provides a toilet heating seat, which stacks and compacts multiple carbon nanotube array films into one layer as a heating device. However, the raw material cost of the carbon nanotube film is high, and the preparation and extraction process is complex, which is not conducive to industrial production. CN 215687388 U provides a heating toilet pad, which uses superconducting alloy as a heating body, has fast heating speed and low energy consumption. However, since it cannot regulate the temperature itself, an additional control unit is needed to control the heating and temperature adjustment of the seat pad. In addition, superconducting alloy is a rare metal material with relatively high price, and its price varies with its type and purity.

[0004] Therefore, the heating toilet seat on the market cannot meet the needs of consumers for high-quality, high-performance, high-safety and low-cost products. SUMMARY

[0005] The present application aims to at least solve one of the above technical problems in the prior art. To this end, one of the objects of the present application is to provide a heating toilet seat based on organic conductive polymer.

[0006] A second object of the present application is to provide a method for preparing such a heating toilet seat based on organic conductive polymer.

[0007] To achieve the above object, the technical solution adopted by the present application is:

[0008] The first aspect of the present application provides a heating toilet seat based on organic conductive polymer, comprising:

[0009] a seat body, an insulating protective layer on the upper surface of the seat body, and an organic conductive polymer heating layer between the seat body and the insulating protective layer.

[0010] In some embodiments of the present application, the insulating protective film layer, the organic conductive polymer heating layer and the shape profile of the seat body are adapted to each other.

[0011] In some embodiments of the present application, the thickness of the insulating protective layer is 0.05-0.5mm; the thickness of the organic conductive polymer heating layer is 0.05-1.0μm.

[0012] Specifically, the present application defines the thickness of the insulating protective layer and the organic conductive polymer heating layer; if the thickness of the organic conductive polymer heating layer is too thin, it will affect the electrically conductive and thermally conductive effect of the product, and if the thickness of the organic conductive polymer heating layer is too thick, it will affect the uniformity of heat conduction and the comfort of the seat, and also increase the energy consumption and cost; if the thickness of the insulating protective layer is too thick, it will affect the heat transfer effect of the product, thereby affecting the user's experience of body temperature; if the thickness of the insulating protective layer is too thin, it will affect the comfort of the user's sitting.

[0013] In some embodiments of the present application, the material of the insulating protective layer is selected from an insulating polymer film or a paint layer; the insulating polymer film includes at least one of polyethylene terephthalate film, polycarbonate film, polymethyl methacrylate film, polyimide film, polyolefin film; the paint layer includes at least one of varnish layer, varnish layer, acrylic paint layer, polyurethane paint layer, epoxy resin paint layer.

[0014] In some embodiments of the present application, the insulating polymer film is selected from a film material or a sheet material.

[0015] In some embodiments of the present invention, the softening temperature of the insulating polymer film is greater than 60°C.

[0016] In some embodiments of the present invention, the organic conductive polymer heating layer comprises at least one organic conductive polymer selected from PEDOT:PSS, polyacetylene and its derivatives, polythiophene and its derivatives, polypyrrole and its derivatives, polyaniline and its derivatives, para-polyphenylene and its derivatives, poly(p-phenylene)ethylene and its derivatives, and polydiacetylene and its derivatives.

[0017] In some preferred embodiments of the present invention, the organic conductive polymer heating layer comprises an organic conductive polymer that is PEDOT:PSS (poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) mixture).

[0018] Specifically, the main chain of organic conductive polymers contains alternating single and double bonds, forming a large conjugated π system. The flow of π electrons creates the possibility of conductivity. Undoped organic conductive polymers have very low conductivity and are insulators because they have a wide band gap (due to the instability of one-dimensional semiconductors). At room temperature, the antibonding orbitals (empty bands) are essentially devoid of electrons. However, through oxidation doping (causing the main chain to lose electrons) or reduction doping (causing the main chain to gain electrons), new polarons, bipolarons, or soliton energy levels are generated in the original band gap, which can increase the conductivity to 10-10000 S / cm. 2 This invention achieves conductivity levels comparable to those of semiconductors or conductors. The preferred organic conductive polymer is a mixture of poly(3,4-ethylenedioxythiophene) and poly(styrene sulfonate). Poly(3,4-ethylenedioxythiophene) (PEDOT) is a polythiophene derivative. Because the side groups have replaced the 3- and 4-positions of the monomer 3,4-ethylenedioxythiophene (EDOT), the polymerization reaction is limited to the 2- and 5-positions. The resulting PEDOT exhibits a linear structure with fewer conjugated defects, ensuring the polymer's stability during doping and dedoping. PEDOT possesses excellent conductivity and good thermal stability, allowing for rapid heat conduction during heating. PEDOT:PSS, prepared by incorporating polystyrene sulfonate (PSS), exhibits good stability, film-forming properties, flexibility, conductivity, and water solubility, while also enhancing photostability and electrochemical activity. Due to its high conductivity, PEDOT:PSS can rapidly conduct current during heating, thus achieving rapid heating.

[0019] In some embodiments of the present invention, the organic conductive polymer heating layer further comprises conductive filler; the conductive filler includes at least one of metal powder, metal oxide, metal nanowire, carbon black, graphite, carbon fiber, carbon nanotube, graphene, and graphene oxide.

[0020] In some preferred embodiments of the present invention, the metal powder includes at least one of silver powder, copper powder, nickel powder, and aluminum powder.

[0021] In some preferred embodiments of the present invention, the metal oxide includes at least one of indium tin oxide and zinc oxide.

[0022] In some preferred embodiments of the present invention, the metal nanowires include at least one of silver nanowires and copper nanowires.

[0023] In some embodiments of the present invention, the amount of the conductive filler is 0.2%-5% of the mass of the organic conductive polymer.

[0024] Specifically, the present invention can further improve the conductivity of the organic conductive polymer heating layer by selectively adding conductive fillers, thereby improving the heating efficiency.

[0025] In some embodiments of the present invention, the organic conductive polymer heating layer further comprises a dopant; the dopant includes at least one selected from ethylene glycol, polyethylene glycol, dimethyl sulfoxide, dimethylformamide, tetramethylene sulfone, tetrahydrofuran, sorbitol, glycerol, acetonitrile, sulfuric acid, formic acid, acetic acid, ionic liquid, and surfactant.

[0026] In some embodiments of the present invention, the amount of the dopant is 0.2%-5% of the mass of the organic conductive polymer.

[0027] Specifically, the present invention can further improve the conductivity of the organic conductive polymer heating layer by selectively adding dopants.

[0028] In some embodiments of the present invention, the organic conductive polymer heating layer further comprises an electrochromic metal oxide; the electrochromic metal oxide includes at least one of copper oxide, iron oxide, titanium dioxide, and tungsten trioxide.

[0029] In some embodiments of the present invention, the amount of the electrochromic metal oxide is 0.2%-5% of the mass of the organic conductive polymer.

[0030] Specifically, the electrochromic properties of a polymer heating layer can be improved by selectively adding electrochromic metal oxides.

[0031] In some embodiments of the present invention, the heated toilet seat ring based on organic conductive polymer may further include an insulating protective layer between the seat ring body and the organic conductive polymer heating layer.

[0032] Specifically, this invention adds an insulating protective layer between the seat ring body and the organic conductive polymer heating layer, forming a multi-layer structure of seat ring body - inner insulating protective layer - organic conductive polymer heating layer - outer insulating protective layer. The outer insulating protective layer prevents users from touching the conductive layer and causing electric shock, while the inner insulating protective layer isolates the organic conductive polymer heating layer from the seat ring body, avoiding the risk of leakage and thus improving product safety. In addition, the inner insulating protective layer helps to evenly distribute the heat of the organic conductive polymer heating layer, preventing local overheating of the seat ring body, and the outer insulating protective layer further buffers the heat, making the surface temperature distribution of the seat ring more uniform and improving comfort.

[0033] In some embodiments of the present invention, the surface of the insulating protective layer may further include a self-cleaning layer; the material of the self-cleaning layer includes TPX release film.

[0034] Specifically, the present invention adds a self-cleaning layer on the surface of the insulating protective layer, which can form a multi-layer structure of seat body - organic conductive polymer heating layer - insulating protective layer - self-cleaning layer. The self-cleaning layer material, represented by TPX release film, has transparent and heat-resistant properties, which can play a self-cleaning role on the surface of the seat, improving the hygiene and safety of the product.

[0035] In some embodiments of the present invention, the seat ring body is provided with terminals, electrode wires, sensing devices, and sensing wires; the terminals are combined with electrode wires and sensing wires and are used to connect to a power supply group; the electrode wires are connected to an organic conductive polymer heating layer; and the sensing wires are connected to a sensing device.

[0036] In some embodiments of the present invention, the sensing device is selected from temperature sensing devices or mechanical travel devices.

[0037] In some embodiments of the present invention, the rear end of the seat ring body is provided with an assembly interface; the assembly interface connects the heated toilet seat ring based on organic conductive polymer to the toilet.

[0038] In some embodiments of the present invention, the terminal is composited with electrode wires, induction wires and other possible circuit groups for connecting to a power supply group; the circuit groups are composited on a suitable carrier to form the terminal, the suitable carrier including a plastic material carrier.

[0039] In some embodiments of the present invention, the electrode wire includes a positive electrode wire and a negative electrode wire; the positive electrode wire and the negative electrode wire are respectively connected to the power supply group and the organic conductive polymer heating layer to form a heating path.

[0040] In some embodiments of the present invention, the electrode wire is made of stainless steel wire, copper wire, silver wire, aluminum wire, nickel wire, tungsten wire, molybdenum wire, titanium wire, and alloy or combination wires of the aforementioned metals.

[0041] In some embodiments of the present invention, the alloy wire includes titanium-tungsten alloy wire, copper-aluminum alloy wire, copper-tungsten alloy wire, and silver-tungsten alloy wire.

[0042] In some embodiments of the present invention, the composite wire comprises a steel-cored aluminum electrode wire.

[0043] In some embodiments of the present invention, the electrode wire is made of carbon materials, metal oxides, or polymers.

[0044] In some embodiments of the present invention, the carbon material includes graphite, carbon fiber, and carbon nanotubes.

[0045] In some embodiments of the present invention, the metal oxide includes iridium oxide and tin oxide.

[0046] In some embodiments of the present invention, the polymer includes polyaniline and polypyrrole.

[0047] In some preferred embodiments of the present invention, the electrode wire is selected from at least one of copper wire, silver wire, and nickel wire.

[0048] In some embodiments of the present invention, the distribution and wiring of the electrode lines are not specifically limited, as long as a reasonable path can be formed so that the organic conductive polymer heating layer can be heated uniformly and well.

[0049] In some embodiments of the present invention, the temperature sensing device includes a sensor that can sense temperature and convert it into a usable output signal; it can be divided into two main categories according to the measurement method: contact type and non-contact type; and into two categories according to the characteristics of sensor materials and electronic components: resistance temperature detectors (RTDs) and thermocouples, including but not limited to temperature sensors commonly used in the field of toilets.

[0050] Specifically, in this invention, by installing a temperature-sensing device, the seat temperature can be precisely controlled and monitored in real time. The data is then fed back to the toilet control system, which adjusts the power of the heating element accordingly to maintain the seat at a suitable temperature, providing a comfortable user experience. At the same time, the temperature-sensing device also ensures that the temperature of all parts of the seat is even, avoiding local overheating or undercooling. When the heating element inside the toilet malfunctions and causes an abnormal temperature rise, the temperature-sensing device can quickly detect it and transmit the signal to the control system. The control system will automatically cut off the power to prevent safety accidents such as fires.

[0051] In some embodiments of the present invention, the mechanical travel device includes, but is not limited to, pressure sensors and vibration sensors commonly used in the field of toilets.

[0052] Specifically, mechanical stroke devices utilize the collision of mechanical moving parts to cause their contacts to move, thereby connecting or disconnecting the control circuit and achieving a certain control purpose.

[0053] A second aspect of the present invention provides a method for preparing a heated toilet seat ring based on an organic conductive polymer, wherein the preparation method is selected from any one of the following methods:

[0054] Method 1: Take an organic conductive polymer solution, apply it to the surface of the seat ring body to form an organic conductive polymer heating layer, and then apply a paint layer to the surface of the organic conductive polymer heating layer to obtain the heated toilet seat ring.

[0055] Method 2: Take an organic conductive polymer solution, composite it onto the surface of an insulating polymer film to form an organic conductive polymer heating layer, and then composite it with the seat ring body to obtain the heated toilet seat ring.

[0056] In some embodiments of the present invention, the organic conductive polymer solution includes a commercial organic conductive polymer solution, or an organic conductive polymer solution prepared by mixing an organic conductive polymer with a solvent.

[0057] In some embodiments of the present invention, the process of mixing the organic conductive polymer with the solvent is supplemented by heating and stirring.

[0058] In some embodiments of the present invention, the process of mixing the organic conductive polymer with the solvent further includes adding an acidic electrolyte to adjust the pH of the solution.

[0059] In some embodiments of the present invention, the acidic electrolyte includes nitric acid and sulfuric acid.

[0060] In some embodiments of the present invention, the organic conductive polymer is completely dissolved, followed by a filtration process.

[0061] Specifically, when preparing an organic conductive polymer solution by mixing an organic conductive polymer with a solvent, heating and stirring can promote the dissolution of the organic conductive polymer, and filtration after dissolution can ensure the homogeneity and stability of the solution.

[0062] In some embodiments of the present invention, the concentration of the organic conductive polymer solution is 0.1-1.0 mg / mL.

[0063] Specifically, this invention defines the concentration range of the organic conductive polymer solution. The concentration of the organic conductive polymer solution has an important impact on its performance and application. Too low a concentration may lead to insufficient conductivity, while too high a concentration may affect the uniformity and stability of the material. This concentration range can ensure the stability and effectiveness of the organic conductive polymer in application.

[0064] In some embodiments of the present invention, the solvent is selected from water or organic solvents.

[0065] In some preferred embodiments of the present invention, the organic solvent is selected from at least one of acetone, methanol, ammonium chloride, chloroform, isopropanol, cyclohexane, toluene, tetrahydrofuran, dimethyl sulfoxide, N-methylpyrrolidone, and acetonitrile.

[0066] In some preferred embodiments of the present invention, the solvent is water.

[0067] Specifically, the present invention preferably uses PEDOT:PSS as an organic conductive polymer. PEDOT:PSS has good water solubility, and using water as a solvent to prepare the solution can avoid the pollution caused by the use of organic solvents and their corrosion to the polymer film. The aqueous solution of PEDOT:PSS has low density, good transparency, compatibility, flexibility, thermal stability, and low cost.

[0068] In some embodiments of the present invention, conductive fillers, dopants, or electrochromic metal oxides are added to the solution of the organic conductive polymer.

[0069] In some embodiments of the present invention, in method 1, the composite method of the organic conductive polymer solution and the seat body is selected from spraying, inkjet printing, coating or transfer printing; the composite method of the paint layer is selected from spraying or baking paint.

[0070] In some embodiments of the present invention, in method 2, the composite method of the organic conductive polymer solution and the insulating polymer film is selected from spraying, inkjet printing, coating or transfer printing; the composite method of the seat ring body is selected from bonding, hot molding or in-mold injection molding.

[0071] In some embodiments of the present invention, the spraying includes using a spray gun or disc atomizer to disperse the organic conductive polymer solution into uniform and fine droplets by means of pressure or centrifugal force, and applying it to the surface of the seat body or the surface of the insulating polymer film.

[0072] In some preferred embodiments of the present invention, the spraying method includes air spraying, airless spraying, and electrostatic spraying.

[0073] In some embodiments of the present invention, the spraying process parameters include at least one of the following parameters: spraying pressure of 0.1-0.5 MPa; spraying speed of 1-10 mL / min; substrate temperature of 40-80℃; spraying thickness of 0.1-1 μm / time; drying temperature of 60-120℃; and drying time of 10-30 min.

[0074] Specifically, the spraying pressure needs to balance the atomization effect and the solution evaporation rate; too fast a spraying speed can easily lead to unevenness, while too slow a speed may result in excessive deposition; preheating the substrate to 40-80℃ can promote solvent evaporation and reduce defects; the drying method is natural air drying or hot air drying.

[0075] In some embodiments of the present invention, the inkjet printing includes using a fine nozzle to spray the organic conductive polymer solution onto the surface of the seat body or the surface of the insulating polymer film at a certain speed to form the desired shape.

[0076] In some embodiments of the present invention, the inkjet printing process parameters include at least one of the following parameters: driving voltage of 20-100V; pulse frequency of 1-20kHz; droplet volume of 1-50pL; substrate temperature of 40-60℃; drying temperature of 80-120℃; and drying time of 5-15min.

[0077] In some embodiments of the present invention, the coating includes uniformly coating an organic conductive polymer solution onto the surface of the seat body or the surface of the insulating polymer film using a coating machine to form a desired pattern.

[0078] In some embodiments of the present invention, the coating method includes brush coating, spin coating, roller coating, and scraping coating.

[0079] In some embodiments of the present invention, the spin coating process parameters include at least one of the following parameters: ambient temperature of 20-25°C; humidity of less than 50%RH; acceleration from 1000rpm to 3000rpm and holding for 30-60s.

[0080] In some embodiments of the present invention, the process parameters for the scraping coating include at least one of the following parameters: ambient temperature of 20-25°C; humidity of less than 50%RH; blade angle of 30-60°; and speed of 10-20mm / s.

[0081] In some embodiments of the present invention, the transfer method includes water transfer printing, air transfer printing, screen transfer printing, and heat transfer printing.

[0082] In some embodiments of the present invention, the bonding includes applying an adhesive to the surface of the seat ring body to bond the insulating polymer film to the seat ring body.

[0083] In some embodiments of the present invention, the adhesive includes silicone sealant, epoxy resin sealant, polyurethane sealant, acrylic sealant, acrylate sealant, polypropylene sealant, and chlorinated polypropylene sealant.

[0084] In some embodiments of the present invention, the hot molding process includes placing the seat body plastic granules in a mold, then heating and pressing them to form the desired shape and bonding them with the insulating polymer film. Adhesives may be added during this process to assist in the molding.

[0085] In some embodiments of the present invention, the in-mold injection molding includes color material surface treatment technology (CMF), thermoplastic molding process technology (NMF), in-mold decoration process technology (IMD), and out-of-mold decoration process technology (MOD).

[0086] In some embodiments of the present invention, the surface treatment technology for the color material includes vacuum electroplating, electroplating, electrolytic polishing, anodizing, and spraying.

[0087] In some embodiments of the present invention, the thermoforming process technology includes hot pressing and vacuum forming.

[0088] In some embodiments of the present invention, the in-mold decoration process technology includes in-mold transfer technology (IMR), in-mold insert technology (IML), in-mold hot pressing technology (IMF), and flexible printed circuit technology (IME).

[0089] In some embodiments of the present invention, the external decoration process technology includes external membrane transfer (OMR) technology and external decoration technology (OMF).

[0090] Compared with the prior art, the beneficial effects of the present invention are:

[0091] 1) The heated toilet seat ring based on organic conductive polymer provided by this invention uses organic conductive polymer as the heating layer, which can quickly heat up to a comfortable temperature (above 30°C) in 5 seconds. It has high heating efficiency. Based on the self-limiting temperature characteristics (≤45°C) of organic conductive polymer, the heated toilet seat ring can still maintain a suitable heating temperature range under long-term heating, effectively avoiding the safety risks of high temperature and flammability. It has high safety. Moreover, the heated toilet seat ring has a simple structure, does not require complicated wiring, has low cost and low energy consumption, and can better meet consumers' demand for high-quality products.

[0092] 2) The method for preparing a heated toilet seat ring based on organic conductive polymer provided by the present invention can achieve low-cost mass production through processes such as spraying and transfer printing, and can be expanded with intelligent functions such as electrochromic color change, which has industrial and commercial prospects. Attached Figure Description

[0093] Figure 1 This is a schematic diagram of the layered structure of the heated toilet seat ring based on organic conductive polymer in this invention.

[0094] Figure 2 This is a schematic diagram of the structural distribution of a heated toilet seat ring based on an organic conductive polymer in this invention.

[0095] Figure 3 This is a schematic diagram of the electrode distribution of a heated toilet seat ring based on organic conductive polymer in this invention.

[0096] Figure 4 These are thermal images of the insulating polymer film with an organic conductive polymer heating layer composited in Embodiment 1 of the present invention under different heating durations.

[0097] Figure 5 These are thermal images of the heated toilet seat ring obtained in Embodiment 2 of the present invention under different heating durations.

[0098] Figure 6 The thermal imaging temperature comparison curves of heated toilet seat rings in Embodiments 1, 3, 5, and 8 of the present invention and Comparative Example 1 under different heating times are shown.

[0099] In the diagram: 1-Seat ring body, 2-Organic conductive polymer heating layer, 3-Insulating protective layer, 4-Terminal, 5-Electrode wire, 6-Sensing device, 7-Sensing wire, 8-Assembly interface. Detailed Implementation

[0100] The present invention will be further described in detail below through specific embodiments. Unless otherwise specified, the raw materials, reagents, or apparatus used in the embodiments and comparative examples are all available from conventional commercial sources or can be obtained by existing technical methods. Unless otherwise specified, the test or experimental methods are conventional methods in the art.

[0101] Figure 1 This is a schematic diagram of the layered structure of the heated toilet seat ring based on organic conductive polymer in this invention. Figure 1 In order to better demonstrate the hierarchical structure of the seat ring body 1, the organic conductive polymer heating layer 2, and the insulating protective layer 3, the structure was disassembled in the vertical direction. In the actual product, the three are closely attached together, and the organic conductive polymer heating layer 2 and the insulating protective layer 3 are sequentially composited on the upper surface of the seat ring body 1.

[0102] Figure 2 This is a schematic diagram illustrating the structural distribution of a heated toilet seat ring based on an organic conductive polymer, as described in this invention. Figure 2In order to better show the distribution of each component on the seat ring, a partial perspective view is used, by... Figure 2 It is known that the electrode wire 5 and the organic conductive polymer heating layer 2 are located sequentially on the upper surface of the seat ring body 1, the terminal 4, the sensing device 6, and the sensing wire 7 are located inside the seat ring body 1, and the terminal 4 is preferably installed inside the assembly interface 8, which is located at the rear end of the seat ring body 1.

[0103] Figure 3 This is a schematic diagram of the electrode distribution of a heated toilet seat ring based on an organic conductive polymer according to the present invention. Figure 3 The invention demonstrates one distribution of the electrode wires 5, wherein the positive electrode wire is located on the outer ring of the organic conductive polymer heating layer 2 and the negative electrode wire is located on the inner ring of the organic conductive polymer heating layer 2. The present invention does not impose specific restrictions on the distribution and wiring of the electrode wires, as long as a reasonable path can be formed so that the organic conductive polymer heating layer can be heated uniformly and well.

[0104] Example 1

[0105] This embodiment provides a heated toilet seat ring based on an organic conductive polymer, specifically:

[0106] A commercially available PEDOT:PSS aqueous solution is used as the organic conductive polymer solution and is coated onto an insulating polymer film using a spraying process to form an organic conductive polymer heating layer. The insulating polymer film with the organic conductive polymer heating layer is then bonded to the seat body using a conventional bonding process. Terminals, electrode wires, sensing devices, and sensing wires are then installed inside the seat body. After wiring is completed, a heated toilet seat based on organic conductive polymer is obtained.

[0107] The commercially available PEDOT:PSS aqueous solution was purchased from Sigma-Aldrich in the United States, under the brand name Orgacon. TM The ICP 1050 has an organic conductive polymer heating layer with a thickness of approximately 0.2 μm; the insulating polymer film is a polyethylene terephthalate film with a softening temperature greater than 60℃ and a thickness of approximately 0.5 μm; the spraying process parameters are: spraying pressure 0.3 MPa, spraying speed 5 mL / min, substrate temperature 50℃, spraying thickness 0.1 μm / batch, drying temperature 80℃, and drying time 20 min; the adhesive used for conventional bonding is silicone sealant; and the electrode wire is copper wire.

[0108] Example 2

[0109] This embodiment provides a heated toilet seat ring based on an organic conductive polymer, specifically:

[0110] A commercially available PEDOT:PSS aqueous solution is used as the organic conductive polymer solution and is coated onto the surface of the seat ring body to form an organic conductive polymer heating layer. Then, a clear varnish is applied to the composite organic conductive polymer heating layer as an insulating protective layer using a spray painting process. A TPX release film is then applied to the surface of the insulating protective layer. Finally, terminals, electrode wires, sensing devices, and sensing wires are installed inside the seat ring body. After completing the wiring, a heated toilet seat ring based on organic conductive polymer is obtained.

[0111] The commercially available PEDOT:PSS aqueous solution was purchased from Sigma-Aldrich in the United States, under the brand name Orgacon. TM The ICP 1050 has an organic conductive polymer heating layer with a thickness of approximately 0.8 μm. The coating process parameters are as follows: blade coating is used, the ambient temperature is 25℃, the humidity is less than 50%RH, the blade angle is 45°, the speed is 15 mm / s, and the electrode wire is copper wire.

[0112] Example 3

[0113] This embodiment provides a heated toilet seat ring based on an organic conductive polymer, specifically:

[0114] An organic conductive polymer, polypyrrole, is dissolved in acetone to prepare a solution with a concentration of 0.8 mg / mL. This solution is then coated onto an insulating polymer film using a spraying process to form an organic conductive polymer heating layer. The insulating polymer film with the organic conductive polymer heating layer is then bonded to the seat body using a conventional bonding process. Terminals, electrode wires, sensing devices, and sensing wires are then installed inside the seat body. After completing the wiring, a heated toilet seat based on an organic conductive polymer is obtained.

[0115] The organic conductive polymer heating layer has a thickness of approximately 0.5 μm; the insulating polymer film is a polyethylene terephthalate film with a softening temperature greater than 60℃ and a thickness of approximately 0.1 mm; the parameters of the spraying process are: spraying pressure 0.3 MPa, spraying speed 5 mL / min, substrate temperature 50℃, spraying thickness 0.1 μm / time, drying temperature 80℃, and drying time 20 min; the adhesive used for conventional bonding is epoxy resin; and the electrode wire is silver wire.

[0116] Example 4

[0117] This embodiment provides a heated toilet seat ring based on an organic conductive polymer, specifically:

[0118] An organic conductive polymer, polyaniline, is dissolved in N-methylpyrrolidone to prepare a solution with a concentration of 1 mg / mL. This solution is then coated between two insulating polymer films to form a three-layer structure. The insulating polymer film with the organic conductive polymer heating layer is then bonded to the seat body using an in-mold injection molding process. Terminals, electrode wires, sensing devices, and sensing wires are then installed inside the seat body. After wiring is completed, a heated toilet seat based on organic conductive polymer is obtained.

[0119] The organic conductive polymer heating layer has a thickness of approximately 1 μm; the insulating polymer film is a polymethyl methacrylate film with a softening temperature greater than 60℃ and a thickness of approximately 0.5 mm; the parameters of the spraying process are: spraying pressure 0.3 MPa, spraying speed 5 mL / min, substrate temperature 50℃, spraying thickness 0.1 μm / time, drying temperature 80℃, and drying time 20 min; the electrode wire is a silver wire.

[0120] Example 5

[0121] This embodiment provides a heated toilet seat ring based on an organic conductive polymer, specifically:

[0122] A commercially available PEDOT:PSS aqueous solution was used as the organic conductive polymer solution. 2% ethylene glycol (by mass of PEDOT:PSS) was added as a dopant. The mixture was stirred and stirred until homogeneous. Then, it was laminated onto the surface of the seat ring body using an inkjet printing process to form an organic conductive polymer heating layer. A clear varnish was then laminated onto the surface of the organic conductive polymer heating layer as an insulating protective layer using a baking process. A TPX release film was then laminated onto the upper surface of the insulating protective layer. Finally, terminals, electrode wires, sensing devices, and sensing wires were installed inside the seat ring body. After wiring was completed, a heated toilet seat ring based on organic conductive polymer was obtained.

[0123] The commercially available PEDOT:PSS aqueous solution is a PEDOT / PSS aqueous dispersion purchased from Zhengzhou Aikem Chemical Co., Ltd., and the thickness of the organic conductive polymer heating layer is about 0.1 μm; the electrode wire is silver wire.

[0124] Example 6

[0125] This embodiment provides a heated toilet seat ring based on an organic conductive polymer, specifically:

[0126] A commercially available PEDOT:PSS aqueous solution is used as the organic conductive polymer solution. 1% tungsten trioxide (by mass of PEDOT:PSS) is added as an electrochromic metal oxide. The mixture is ultrasonically mixed and then laminated onto the surface of an insulating polymer film using inkjet printing to form an organic conductive polymer heating layer. The insulating polymer film with the organic conductive polymer heating layer is then bonded to the seat body using in-mold injection molding. Terminals, electrode wires, sensing devices, and sensing wires are then installed inside the seat body. After wiring is completed, a heated toilet seat based on an organic conductive polymer is obtained.

[0127] The commercially available PEDOT:PSS aqueous solution is a PEDOT / PSS aqueous dispersion purchased from Zhengzhou Aikem Chemical Co., Ltd. The thickness of the organic conductive polymer heating layer is about 0.2 μm; the insulating polymer film is a polyethylene terephthalate film with a softening temperature greater than 60℃ and a thickness of about 0.1 mm; the electrode wire is nickel wire.

[0128] Example 7

[0129] This embodiment provides a heated toilet seat ring based on an organic conductive polymer, specifically:

[0130] A commercially available PEDOT:PSS aqueous solution is used as the organic conductive polymer solution. It is laminated onto an insulating polymer film through a thermal transfer process to form an organic conductive polymer heating layer. The insulating polymer film with the organic conductive polymer heating layer is then bonded to the seat body through a hot molding process. Terminals, electrode wires, sensing devices, and sensing wires are then installed inside the seat body. After wiring is completed, a heated toilet seat based on organic conductive polymer is obtained.

[0131] The commercially available PEDOT:PSS aqueous solution was purchased from Xi'an Qiyue Biotechnology Co., Ltd., model PH1000. The thickness of the organic conductive polymer heating layer is approximately 0.05 μm. The insulating polymer film is a polyimide film with a softening temperature greater than 60℃ and a thickness of approximately 0.05 mm. The electrode wire is a nickel wire.

[0132] Example 8

[0133] This embodiment provides a heated toilet seat ring based on an organic conductive polymer, specifically:

[0134] Commercially available PEDOT:PSS aqueous solution is used as the organic conductive polymer solution. 3% sorbitol by mass of PEDOT:PSS is added as a dopant. The mixture is stirred and mixed evenly, and then laminated onto the surface of the seat ring body through a thermal transfer process to form an organic conductive polymer heating layer. A clear varnish is then laminated onto the surface of the organic conductive polymer heating layer through a baking process as an insulating protective layer. A TPX release film is then laminated onto the upper surface of the insulating protective layer. Terminals, electrode wires, sensing devices, and sensing wires are then installed inside the seat ring body. After wiring is completed, a heated toilet seat ring based on organic conductive polymer is obtained.

[0135] The commercially available PEDOT:PSS aqueous solution was purchased from Xi'an Qiyue Biotechnology Co., Ltd., model PH1000. The thickness of the organic conductive polymer heating layer is approximately 0.1 μm. The electrode wire is nickel wire.

[0136] Comparative Example 1

[0137] This comparative example uses a commercially available brand of smart toilet heated seat as a comparison.

[0138] Performance testing

[0139] Thermal imaging tests were conducted using an infrared thermal imager (FLIR C3-X, Treda Filer Co., Ltd.) on the insulating polymer film with an organic conductive polymer heating layer in Example 1, the commercially available smart toilet heated seat ring of a certain brand in Comparative Example 1, and the heated toilet seats prepared in Examples 1, 2, 3, 5, and 8. In Example 1, the insulating polymer film with an organic conductive polymer heating layer was heated by a 24V power supply (A-BF / SS305S, Dongguan Bufan Electronics Co., Ltd.), with the time the seat ring was energized as the starting heating time point.

[0140] Figure 4 These are thermal images of the insulating polymer film with an organic conductive polymer heating layer composited in Embodiment 1 of the present invention under different heating durations. Figure 4 In the image, A, B, C, D, E, and F are thermal images taken after heating for 0s, 1s, 2s, 3s, 4s, and 5s, respectively. Figure 4 It can be seen that the organic conductive polymer heating layer used in this invention has a fast heating rate, with the local temperature rising to above 25°C within 1 second (Figure B), and the overall temperature reaching 30°C within 5 seconds. Moreover, the thermal imaging color distribution is uniform, with no local hot spots, which reflects the self-limiting temperature characteristics of the conductive polymer.

[0141] Figure 5 These are thermal images of the heated toilet seat ring prepared in Embodiment 2 of the present invention under different heating durations, wherein... Figure 5In the image, A, B, C, D, E, and F are thermal images taken after heating for 5 seconds, 30 seconds, 1 minute, 5 minutes, 15 minutes, and 30 minutes, respectively. Figure 5 It can be seen that the heated toilet seat ring has reached 32°C after 5 seconds of heating (Figure A), and 35.4°C after 5 minutes of heating (Figure D). Furthermore, it can remain stable at this temperature at 15 minutes and 30 minutes (Figures E and F). This indicates that the heated toilet seat ring based on organic conductive polymer provided by the present invention has a certain heating upper limit. Under long-term heating, the temperature can still be maintained within a suitable heating temperature range, effectively avoiding the safety risks of high temperature and flammability.

[0142] Figure 6 These are thermal imaging temperature comparison curves of the heated toilet seat rings in Embodiments 1, 3, 5, and 8 of the present invention and Comparative Example 1 under different heating durations. Figure 6 As can be seen, compared with a commercially available smart toilet heated seat ring, the toilet seat rings in Embodiments 1, 3, 5, and 8 of this invention exhibit a highly efficient heating rate. In an 8-second heating time, the seat ring temperature reached above 30°C. Among them, the seat ring using PEDOT:PSS as the organic conductive polymer heating layer has superior heating efficiency, reaching above 30°C in a 5-second heating time. In contrast, the commercially available smart toilet heated seat ring, as a comparison, only reached about 25°C in an 8-second heating time, exhibiting problems such as slow sensing, slow heating, slow heat conduction, and long preheating time. Consumers often have to wait a long time to feel the temperature when using the toilet. To overcome this problem, commercially available products use a continuous heating method to heat the heating module without interrupting power, resulting in huge energy consumption. Furthermore, in Embodiments 5 and 8, the addition of conductive dopants to the organic conductive polymer heating layer significantly improved the heating efficiency.

Claims

1. A heated toilet seat ring based on an organic conductive polymer, characterized in that, include: Seat ring body; an insulating protective layer located on the upper surface of the seat ring body; and an organic conductive polymer heating layer located between the seat ring body and the insulating protective layer.

2. The heated toilet seat ring according to claim 1, characterized in that, The thickness of the insulating protective layer is 0.05-0.5 mm; the thickness of the organic conductive polymer heating layer is 0.05-1.0 μm.

3. The heated toilet seat ring according to claim 1, characterized in that, The material of the insulating protective layer is selected from an insulating polymer film or a paint layer; the insulating polymer film includes at least one of polyethylene terephthalate film, polycarbonate film, polymethyl methacrylate film, polyimide film, and polyolefin film; the paint layer includes at least one of varnish layer, clear varnish layer, acrylic paint layer, polyurethane paint layer, and epoxy resin paint layer.

4. The heated toilet seat ring according to claim 1, characterized in that, The organic conductive polymer heating layer contains at least one organic conductive polymer selected from PEDOT:PSS, polyacetylene and its derivatives, polythiophene and its derivatives, polypyrrole and its derivatives, polyaniline and its derivatives, para-polyphenylene and its derivatives, poly(p-phenyleneethylene) and its derivatives, and polydiacetylene and its derivatives.

5. The heated toilet seat ring according to claim 4, characterized in that, The organic conductive polymer heating layer may also contain conductive fillers; the conductive fillers include at least one of metal powder, metal oxide, metal nanowires, carbon black, graphite, carbon fiber, carbon nanotubes, graphene, and graphene oxide.

6. The heated toilet seat ring according to claim 4, characterized in that, The organic conductive polymer heating layer also contains a dopant; the dopant includes at least one of ethylene glycol, polyethylene glycol, dimethyl sulfoxide, dimethylformamide, tetramethylene sulfone, tetrahydrofuran, sorbitol, glycerol, acetonitrile, sulfuric acid, formic acid, acetic acid, ionic liquid, and surfactant.

7. The heated toilet seat ring according to claim 4, characterized in that, The organic conductive polymer heating layer also contains an electrochromic metal oxide; the electrochromic metal oxide includes at least one of copper oxide, iron oxide, titanium dioxide, and tungsten trioxide.

8. The method for preparing a heated toilet seat ring based on an organic conductive polymer according to any one of claims 3-7, characterized in that, The preparation method is selected from any one of the following methods: Method 1: Take an organic conductive polymer solution, apply it to the surface of the seat ring body to form an organic conductive polymer heating layer, and then apply a paint layer to the surface of the organic conductive polymer heating layer to obtain the heated toilet seat ring. Method 2: Take an organic conductive polymer solution, composite it onto the surface of an insulating polymer film to form an organic conductive polymer heating layer, and then composite it with the seat ring body to obtain the heated toilet seat ring.

9. The preparation method according to claim 8, characterized in that, In Method 1, the composite method of the organic conductive polymer solution and the seat body is selected from spraying, inkjet printing, coating or transfer printing; the composite method of the paint layer is selected from spraying or baking paint.

10. The preparation method according to claim 8, characterized in that, In Method 2, the composite method of the organic conductive polymer solution and the insulating polymer film is selected from spraying, inkjet printing, coating or transfer printing; the composite method of the seat ring body is selected from bonding, hot molding or in-mold injection molding.

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