Submerged heating coil
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2026-02-09
- Publication Date
- 2026-08-13
Smart Images
Figure US2026014482_13082026_PF_FP_ABST
Abstract
Description
SUBMERGED HEATING COILCROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is related to and claims priority benefit of U. S Provisional Application No. 63 / 756,337, entitled “SUBMERGED HEATING COIL” filed February 10, 2024, the contents of which are hereby incorporated by reference in their entirety into the present disclosure.FIELD OF THE DISCLOSURE
[0002] Embodiments of the present disclosure relate generally to heating systems for sanitary fixtures and, more particularly, to submerged heating element systems for heating water within toilet seats.BACKGROUND OF THE DISCLOSURE
[0003] Toilet seats may include bidets that commonly incorporate water heating functionality to provide warm cleansing water for user comfort. Conventional water heating approaches in bidet systems typically fall into two categories: inline heaters and storage tank heaters. Inline heaters, such as ceramic heating elements, heat water as it flows through the system. These heaters require high instantaneous power input to raise water temperature sufficiently during flow. Storage tank systems maintain a volume of preheated water but must operate continuously to keep the water at temperature, resulting in constant power consumption.
[0004] Both approaches present limitations. Inline heaters typically require access to household electrical power due to their high instantaneous power demands. In many bathrooms, electrical outlets are not conveniently located near toilets, making installation difficult without electrical modifications. Storage tank systems, while using lower1PH4342WO01instantaneous power, continuously consume energy to maintain water temperature even when the bidet is not in use, making them poorly suited for operation.
[0005] Additionally, conventional bidet systems employ separate heating elements for water heating and seat heating functions. This dual-heater approach increases system complexity, raises manufacturing costs, and results in higher overall power consumption. The separation of heating functions also creates challenges in thermal management and temperature control.
[0006] Current solutions have not adequately addressed the need for efficient combined water and seat heating. As bidet functionality becomes increasingly desired in locations without convenient access to electrical power, improved heating solutions that can operate effectively on battery power while maintaining both water and seat temperature are needed.
[0007] Improvements in the foregoing are desired.BRIEF SUMMARY OF THE DISCLOSURE
[0008] In conventional toilet and bidet systems, water heating and seat heating are typically achieved through separate heating mechanisms requiring significant power input. Storage tank heaters must maintain water temperature continuously, while inline heaters demand high instantaneous power to heat water during flow. These approaches make battery-powered operation challenging, particularly in bathrooms lacking convenient electrical outlets. Additionally, the use of separate heating systems for water and seat heating increases complexity and power consumption.
[0009] Embodiments of the present disclosure provide various systems that cure many of the above noted defects and difficulties. In this regard, various embodiments of the present disclosure provide an efficient, integrated heating solution that enables both water and seat heating using a single submerged heating element. The system achieves rapid water heating through optimized surface area contact between the heating element and water, while simultaneously conducting heat to the seat body. In some embodiments, the system can operate on battery power by maximizing thermal transfer efficiency through2PH4342WO01configurations of internal channels and heating elements. Multiple heating configurations may be utilized to accommodate different power and performance requirements.
[0010] In an example embodiment, a heating system for a toilet seat is provided. The system comprises a seat body comprising an internal channel configured to contain water a heating element disposed within the internal channel. The heating element comprises a conductive wire, wherein the conductive wire has an exterior surface area and the internal channel has a water volume. A water inlet is also coupled to the internal channel and configured to receive water from a water supply; and a water outlet coupled to the internal channel and configured to discharge heated water. The heating element is configured to heat both the water within the internal channel and the seat body.
[0011] In some embodiments, the internal channel comprises a plurality of passageways configured to maximize contact between the heating element and the water volume; and wherein the passageways define a flow path optimized for thermal transfer efficiency.
[0012] In some embodiments, the internal channel comprises a heating section proximate to the water inlet; and a distribution section configured to direct heated water to the water outlet.
[0013] In some embodiments, the conductive wire is formed into a coil configuration, wherein the coil configuration comprises a plurality of heating segments; wherein each of the plurality of heating segments is configured within a corresponding channel section to maintain a minimum surface contact area with the water volume; and wherein the heating segments are arranged to provide uniform heat distribution throughout the internal channel.
[0014] In some embodiments, the water inlet comprises a connection to a water supply; and a flow control mechanism configured to regulate water flow through the internal channel.
[0015] In some embodiments, the internal channel is configured to store a predetermined volume of water for heating prior to discharge.3PH4342WO01
[0016] In some embodiments, the system further comprises a power supply configured to deliver a controlled electrical input to the heating element; and wherein the power supply is configured to maintain consistent heating performance.
[0017] In some embodiments, the heating segments are configured to achieve a predetermined temperature.
[0018] In some embodiments, the heating element is configured to heat water within the internal channel to a target temperature.
[0019] In some embodiments, the system further comprises a temperature monitoring system configured to measure water temperature within the internal channel; and regulate power delivery to the heating element based on the measured temperature.
[0020] In some embodiments, the internal channel comprises a cross-sectional area configured to optimize both water volume and heating element contact area.
[0021] In some embodiments, the water outlet comprises a discharge nozzle,
[0022] In some embodiments, the heating element is further configured to maintain heated water temperature during discharge through the discharge nozzle at a predetermined flow rate
[0023] In some embodiments, the system further comprises a thermal isolation system configured to maintain temperature differential between the heated internal channel and external surfaces of the seat body.
[0024] In some embodiments, wherein the coil configuration is arranged to provide a first heating zone proximate to the water inlet; and a second heating zone proximate to the water outlet. Where the first and second heating zones are configured to provide uniform temperature distribution.
[0025] In some embodiments, the temperature monitoring system is configured to maintain water temperature between ambient temperature and 104 degrees Fahrenheit; and prevent water temperature from exceeding a predetermined maximum temperature threshold.4PH4342WO01
[0026] In some embodiments, the heating system further comprises comprising an electrical connection system configured to deliver power to the heating element, and maintain watertight seal where the heating element enters and exits the internal channel.
[0027] In some embodiments, the power supply may be a battery source or an electrical connection to an outlet.
[0028] In some embodiments, the internal channel is configured to store a predetermined volume of water sufficient for a complete cleaning cycle.
[0029] In some embodiments, the heating system further comprises a bidet assembly configured to be mounted on a toilet.
[0030] In some embodiments, the bidet assembly comprises a battery power source and the heating element is configured to operate using power from the battery power source.
[0031] In some embodiments, the internal channel comprises a network of passageways integrated within the seat body and the heating element is configured to simultaneously heat both the water within the passageways and the seat body.
[0032] In some embodiments, the heating system further comprises a control system configured to monitor power consumption of the heating element; regulate power delivery from the battery power source; and adjust heating element operation based on available battery capacity.
[0033] In some embodiments, the water inlet is configured to connect to a water supply line; and the internal channel is configured to maintain the water under pressure from the water supply line while heating.
[0034] In some embodiments, the heating element comprises a safety isolation system configured to electrically isolate the heating element from the water, and maintain thermal conductivity between the heating element and the water.
[0035] In some embodiments, the heating system further comprises a thermal management system configured to monitor temperature of the water within the internal5PH4342WO01channel, regulate power delivery to the heating element, and maintain water temperature within a predetermined range.
[0036] In some embodiments, the water outlet comprises a bidet nozzle assembly and the coil configuration of the heating element is arranged to provide uniform heating along a water flow path from the inlet to the nozzle assembly.
[0037] In some embodiments, the heating system further comprises an energy conservation mode wherein the heating element operates at reduced power, maintains minimum required water temperature, and extends battery life during periods of low usage.
[0038] In some embodiments, the internal channel and heating element are configured to heat a predetermined volume of water to a target temperature, and maintain heated water temperature during discharge through the bidet nozzle assembly.
[0039] In some embodiments, a ratio between the exterior surface area of the conductive wire and the water volume is configured to provide water heating.
[0040] In another example embodiment a bidet assembly is provided wherein the bidet assembly comprises the heating system as shown in the preceding embodiments.BRIEF DESCRIPTION OF THE DRAWINGS
[0041] Having thus described embodiments of the present disclosure in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
[0042] FIG. 1A illustrates a top-down view of a toilet seat with a bidet, in accordance with some embodiments disclosed herein;
[0043] FIG. 1B is a detailed top-down view of the interior of the toilet seat of FIG. 1A illustrating a heating element positioned within internal channels, in accordance with some embodiments discussed herein; and6PH4342WO01
[0044] FIG. 1C illustrates a cross-sectional side view of the toilet seat of FIG. 1A showing the spatial relationship between the heating element, water channel, and seat body, in accordance with some embodiments discussed herein.DETAILED DESCRIPTION
[0045] Exemplary embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the present disclosure are shown. Indeed, the present disclosure may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like reference numerals refer to like elements throughout.
[0046] FIG. 1A illustrates toilet seat 100 incorporating internal channels 122 configured with an integrated water heating system. Toilet seat 100 comprises a seat body configured to mount on a standard toilet fixture, where internal channels 122 formed within seat body serve as fluid passageways for water heating and distribution. The integration of fluid channels directly within toilet seat 100 enables simultaneous heating of both water and seat surfaces through a single heating element system.
[0047] Bidet 120 is positioned above toilet bowl 150 and incorporates the control and monitoring systems for the water and heating functionality. Unlike conventional bidet attachments that require separate heating units, bidet 120 may work in conjunction with the integrated channels in toilet seat 100 to provide efficient water and seat heating through a unified system. Bidet 120 houses the electronic control components, user interface elements, and water management systems necessary for operation of the heating system.
[0048] Water inlet 104 serves as the water supply interface, receiving ambient temperature water and routing it through bidet 120 into internal channels 122 of toilet seat 100. Water inlet 104 connects to a standard water supply line, as the system is configured to heat water directly within toilet seat 100 rather than requiring a pre-heated water source.7PH4342WO01The positioning of water inlet 104 enables water flow distribution throughout internal channels 122 while maintaining the structural integrity of toilet seat 100.
[0049] A mixing valve 108 is positioned downstream of water inlet 104 to regulate water flow into internal channels 122. Mixing valve 108 controls flow rates through the system while maintaining consistent pressure distribution. During operation, mixing valve 108 modulates water flow based on signals from control device 106 to maintain desired output conditions through nozzle assembly 124. Mixing valve 108 comprises a valve body containing flow control elements that provide adjustment of water volume entering internal channels 122. In some embodiments, mixing valve 108 incorporates a solenoid-actuated configuration that enables electronic flow control. The solenoid valve responds to signals from control device 106 to adjust flow rates based on user input and system demands. In some embodiments a motorized valve assembly is utilized that provides variable position control for precise flow adjustment. In some embodiments mixing valve 108 may include pressure-compensating features that maintain consistent flow rates despite variations in supply pressure. Through these various valve configurations, water flow is controlled before entering the heating system within internal channels 122.
[0050] Internal channels 122 formed within toilet seat 100 contain a submerged heating element. These channels follow a predetermined path through toilet seat 100, configured to house both water volume and heating elements while maintaining structural integrity. Internal channels 122 can serve multiple purposes such as providing a flow path for water to reach nozzle assembly 124 while also creating a sealed environment for the heating elements to contact water directly. A conductive wire heating element is positioned within internal channels 122, formed into a coil configurations that optimize surface area contact with surrounding water. The heating element is electrically isolated through an insulated coating that prevents conductivity through water while maintaining thermal transfer properties. This configuration enables direct water heating through conductive heat transfer between the heating element surface and water volume.
[0051] The heating element arrangement within internal channels 122 utilizes surface area to water volume ratios that promote efficient thermal transfer. A higher ratio of heating element surface area to surrounding water volume reduces the time and power required to8PH4342WO01raise water temperature. The coil configuration of the heating element increases effective surface area while maintaining compact channel dimensions. Details regarding the heating element will be discussed further in FIG. 1B.
[0052] Temperature sensor 112 comprises multiple sensing elements positioned strategically throughout internal channels 122 and toilet seat 100. A primary sensor monitors water temperature within internal channels 122, while secondary sensors may track heating element surface temperatures and seat body temperatures. This distributed sensing arrangement provides comprehensive temperature data throughout the system. Sensor data enables real-time monitoring of temperature changes, with multiple sensor locations ensuring uniform heating while preventing localized hot spots.
[0053] Control device 106 housed within bidet 120 processes the sensor inputs to manage system operation. When water temperature deviates from user-selected settings, control device 106 adjusts power delivery to the heating elements based on temperature sensor 112 feedback. Control device 106 may also incorporate safety monitoring functions that deactivate heating elements upon detecting temperature anomalies or low water conditions. An interlock system may also be implemented to de-energize heating elements when nozzle assembly 124 is activated, providing additional safety during water dispensing.
[0054] User interface 116 mounted on bidet 120 works in conjunction with control device 106 to enable system adjustments. Through user interface 116, users select water temperature settings within a predetermined range, typically between ambient temperature and 104°F (40°C). A pressure control dial enables selection between multiple flow rates, typically ranging from 50 milliliters per minute to 2 liters per minute. Control device 106 manages these settings through modulation of nozzle valve 130, maintaining consistent pressure regardless of selected temperature. Visual indicators display current temperature, system status, and when operating on battery power, remaining battery capacity. User interface 116 may also provide programmable presets that store preferred combinations of temperature and pressure settings. These presets enable quick recall of user preferences without requiring individual adjustment of multiple parameters. Control device 1069PH4342WO01maintains these stored settings and applies appropriate power and flow control parameters when presets are selected.
[0055] Nozzle assembly 124 positioned at the middle of bidet 120 incorporates nozzle 126 for water delivery. Nozzle 126 extends during operation to direct heated water flow, then may retract to a protected position when not in use. Nozzle valve 130 regulates water flow from internal channels 122 through nozzle assembly 124, maintaining pressure control during operation. Nozzle assembly 124 maintains water temperature from internal channels 122 through to final dispensing. Nozzle 126 may incorporate multiple outlet ports configured for different spray patterns and flow characteristics. The spray pattern delivers a focused stream of heated water, while secondary patterns may provide wider coverage areas. Nozzle 126 extends during operation through an actuated mechanism that positions the spray outlets for optimal coverage. Upon completion of the cleaning cycle, nozzle 126 automatically retracts behind a protective cover to prevent contamination when not in use.
[0056] Nozzle valve 130 controls water flow from internal channels 122 to nozzle assembly 124. Unlike basic shut-off valves, nozzle valve 130 incorporates progressive opening characteristics that prevent pressure spikes during activation. A seal assembly within nozzle valve 130 can prevent water backflow into internal channels 122 when the system is not in use. The valve body may also include internal channels configured to maintain water temperature during flow while preventing heat loss during standby periods.
[0057] Toilet seat 100 may also incorporate a power management system that enables operation through multiple power sources. Bidet 120 and toilet seat 100 may work in battery-powered operation, where the system draws power from a rechargeable battery pack that can be removably coupled to bidet 120. The battery pack may be magnetically attached to an underside of bidet 120, enabling for easy removal when recharging is required. A charging dock positioned away from toilet seat 100 enables convenient battery charging without requiring direct connection to toilet seat 100.
[0058] The power management system may also regulate electrical input to the heating elements based on available power capacity. When operating on battery power, the system may employ adaptive control algorithms that balance heating performance with power10PH4342WO01consumption. These algorithms monitor battery charge state and adjust heating cycles to maintain optimal temperature while extending operational duration.
[0059] Power delivery to the heating elements may vary based on operating conditions. During initial heating of static water within internal channels 122, the system may draw higher power levels to achieve rapid temperature rise. Once target temperature is reached, power input reduces to maintain temperature while conserving energy. This variable power delivery enables efficient operation while preventing excessive battery drain.
[0060] The creation of Toilet seat 100 may employ different injection molding techniques that create internal channels 122 with controlled dimensional tolerances. The molding process may utilize a tool that forms channel geometries while maintaining consistent wall thickness throughout the seat body. The dimensions including channel width and depth are maintained within ±0.1mm tolerance to ensure optimal heating element placement and water flow characteristics. The material composition of toilet seat 100 may also include antimicrobial additives that ensure long-term performance in bathroom environments.
[0061] In some embodiments, toilet seat 100 may operate using standard household electrical power rather than battery power. An electrical connection port on bidet 120 enables direct connection to household power through a conventional power cord and transformer assembly. The electrical connection incorporates safety features including ground fault protection and moisture protection to prevent electrical hazards in the bathroom environment. When operating through direct electrical connection, the power management system maintains consistent power delivery to the heating elements without requiring battery monitoring or charge state management. The electrical connection may include an AC / DC converter to provide appropriate power characteristics for heating element operation. This converter steps down household voltage to safe operating levels while providing electrical isolation from the main power supply. In some embodiments, the converter incorporates surge protection and voltage regulation to maintain stable power delivery despite fluctuations in household power.11PH4342WO01
[0062] In some embodiments, toilet seat 100 incorporates a hybrid power system supporting both battery and direct electrical connection. This configuration enables standard operation through household power while maintaining battery capability for backup operation. The power management system automatically switches between power sources based on availability and system demands.
[0063] In some embodiments, smart charging systems may be utilized that optimize battery life. These systems monitor battery temperature and charge state to prevent overcharging while maintaining battery capacity. Charging profiles adjust based on battery age and usage patterns to maximize long-term battery performance.
[0064] In some embodiments, energy harvesting capabilities may be incorporated to supplement battery power. These systems may capture energy from water flow or temperature differentials to provide supplemental charging during normal operation. The harvested energy extends battery life between charging cycles while reducing overall power consumption.
[0065] In some embodiments, nozzle assembly 124 incorporates multiple nozzles 126 for different cleaning functions. Each nozzle 126 may feature different spray patterns optimized for specific use cases. The nozzles can operate independently or in combination depending on user selection through user interface 116.
[0066] In some embodiments interchangeable nozzle tips may be utilized that enable customization of spray patterns. These nozzle tips attach to nozzle 126 through a sealed connection that maintains pressure during operation. Various tip configurations provide different flow rates and spray patterns while maintaining consistent water temperature delivery.
[0067] In some embodiments, toilet seat 100 operates in multiple heating modes depending on available power sources. When connected to battery power, the system may enter an energy conservation mode that optimizes heating cycles to extend battery life. This mode maintains water temperature through controlled heating intervals rather than continuous heating. When connected to a standard power connection, the system may operate at a normal level and continuously heat the water.12PH4342WO01
[0068] In some embodiments variable heating zones may be incorporated within internal channels 122. These zones can be independently controlled to provide different temperature profiles across toilet seat 100. Such zoning enables focused heating of water volumes closest to nozzle assembly 124 while maintaining lower temperatures in other regions.
[0069] In some embodiments a hybrid heating approach may be utilized where the system can operate on either battery power or household electrical supply. This configuration provides backup heating capability during power outages while enabling standard operation when grid power is available.
[0070] In some embodiments pressure-sensing capability may be incorporated within internal channels 122. These sensors monitor water pressure to prevent operation without adequate water supply and ensure proper heating element submersion. Pressure monitoring also enables detection of potential blockages or flow restrictions within the system.
[0071] In some embodiments, adaptive control algorithms may be incorporated that learn user preferences over time. The system monitors frequently selected settings and adjusts default parameters to match usage patterns. Control device 106 applies these learned parameters while still enabling manual adjustment through user interface 116.
[0072] FIG. IB illustrates a detailed view of internal channels 122 formed within toilet seat 100, showing the arrangement of heating element 123 configured to heat both water and the surrounding seat body. Internal channels 122 comprise dimensioned fluid passageways that house both heating element 123 and a water volume. These channels follow predetermined pathways through toilet seat 100 while maintaining structural integrity of the seat body. Internal channels 122 are configured with cross-sectional dimensions optimized for both water flow and heat transfer characteristics. The channel width provides sufficient space for water flow while minimizing total water volume to enable rapid heating and the channel depth accommodates heating element 123 while enabling complete water submersion during operation.
[0073] Heating element 123 comprises a conductive wire formed into a coil pattern within internal channels 122. The wire follows a serpentine path through channels 122,13PH4342WO01creating multiple parallel heating segments that distribute heat evenly throughout the water volume. Each segment of heating element 123 maintains consistent spacing from channel walls to provide uniform heat transfer to both water and the surrounding seat material. The coil configuration of heating element 123 maximizes surface area contact between the heating element and surrounding water. Each coil creates a defined heating surface that transfers thermal energy into water volume through direct conduction. The spacing between each coil enables water circulation while maintaining continuous thermal contact along the entire length of heating element 123. When electrical current passes through heating element 123, electrical resistance in the conductive wire generates thermal energy. The wire material's electrical resistance properties enable efficient conversion of electrical power to heat energy.
[0074] Power delivery to heating element 123 through electrical connections creates uniform heating along the entire length of the coiled wire configuration. As current flows through the conductive wire, electrical energy converts to thermal energy, raising the temperature of heating element 123. The heated coil surfaces then transfer this thermal energy directly to the surrounding water through conduction. Water in direct contact with heating element 123 surfaces absorbs thermal energy and begins circulating within internal channels 122 through natural convection, creating uniform water heating throughout the system. This direct thermal transfer from heating element 123 to water enables efficient temperature rise while the coil configuration ensures even heat distribution. Simultaneously, thermal energy conducts through the walls of internal channels 122 into the surrounding seat body material. This dual heat transfer pathway enables heating element 123 to warm both the water volume and seat surfaces using a single heating system. The channel wall thickness and material properties are selected to provide effective heat transfer to the seat while maintaining water temperature control. This integrated heating approach eliminates the need for separate water and seat heating elements.
[0075] The ratio between heating element 123 surface area and water volume within internal channels 122 determines heating efficiency. A higher surface area to volume ratio enables more rapid temperature rise while requiring less power input. The coil configuration of heating element 123 achieves this through wire diameter selection and coil14PH4342WO01spacing - smaller diameter wire provides increased surface area per unit length while tighter coil spacing creates more heating surface within a given channel volume. Multiple configurations of heating element 123 enable optimization for different operating conditions. Variations in wire diameter, coil diameter, and coil spacing create different surface area ratios while maintaining consistent water volume. Temperature distribution within internal channels 122 varies based on the different heating element 123 configurations. Smaller diameter coils provide more uniform heating through increased surface area density, while larger diameter coils create broader heating zones. The selected configuration balances heating uniformity with manufacturing and assembly requirements while maintaining consistent performance.
[0076] Internal channels 122 maintain dimensional relationships that optimize heating performance. Channel cross-sectional area balances water volume requirements with heating element contact area. A water volume of 300-400 milliliters distributed through internal channels 122 may provide sufficient capacity for cleaning cycles while enabling efficient heating. The channel dimensions may maintain water layer around heating element 123 within 2-8 millimeters to promote uniform heat distribution.
[0077] Water volume surrounds heating element 123 within internal channels 122 and the ratio between heating element surface area and water volume directly influences heating efficiency and response time. Internal channels 122 maintain consistent water volume around heating element 123 through controlled dimensional tolerances, enabling predictable thermal transfer characteristics throughout the system. An electrically insulated coating applied to heating element 123 provides electrical isolation while enabling thermal conductivity. The coating material maintains dielectric strength when submerged while minimizing thermal resistance between heating element 123 and water volume. This coating extends along the entire length of heating element 123, including regions where the wire enters and exits internal channels 122. Water flow through internal channels 122 influences heat transfer from heating element 123. During static heating periods when water remains stationary in channels 122, thermal transfer occurs through conduction and natural convection within water volume. When flow initiates through nozzle assembly 124,15PH4342WO01forced convection increases heat transfer rates, requiring adjustment of power input to maintain temperature.
[0078] Power delivered to heating element 123 can also vary based on the surface area to volume configuration. Higher ratios enable lower power input while achieving desired temperature rise. Power input can be adjusted automatically through control device 106 based on the specific heating element configuration installed.
[0079] Temperature rise rates within the water volume can also depend on several parameters controlled through the system configuration. The coil density of heating element 123 influences local heat transfer rates, while channel geometry affects water circulation patterns around the heating surfaces. These factors combine to determine overall system response to power input, with higher surface area configurations providing more rapid heating with improved temperature uniformity.
[0080] Control device 106 may also manage power delivery to heating element 123 based on the specific surface area and volume characteristics of the installed configuration. Temperature feedback from multiple sensor locations enables power modulation to maintain target temperatures. The control algorithm can account for thermal mass of both water volume and surrounding channel materials when adjusting power levels.
[0081] The relationship between heating element 123 surface area and water volume may also enable variable temperature control ranges. Control device 106 adjusts power delivery to maintain water temperatures between ambient and 104°F (40°C) based on user input through user interface 116. The surface area configuration enables stable temperature maintenance while preventing localized heating that could exceed maximum temperature limits.
[0082] The arrangement of internal channels 122 may also create heating zones within toilet seat 100. There may be different heating zones such as a primary heating zone that positions heating element 123 to rapidly heat water volume near nozzle assembly 124. Secondary zones may be created that maintain temperature in regions farther from the discharge point while contributing to overall seat heating, In some embodiments, the coil spacing of heating element 123 creates different thermal zones within internal channels16PH4342WO01122. Primary heating zones near nozzle assembly 124 utilize tighter coil spacing to provide rapid heating of water immediately before discharge. Secondary zones with wider coil spacing maintain background heating while contributing to seat warming. This zoned approach enables efficient power utilization while ensuring consistent output temperature.
[0083] Channel geometry influences water circulation patterns around heating element 123 and internal channels 122 may incorporate flow features that promote uniform water movement during both static and flowing conditions. These features prevent stagnant zones while maintaining consistent water layer thickness around heating element 123 surfaces.
[0084] There may also be sealed entry points where heating element 123 enters and exists the heating channels. These entry and exit points may incorporate strain relief features that prevent wire movement and maintain seal integrity during thermal cycling. Electrical connections at entry points and exit points may utilize sealed terminal blocks that maintain water-tight seal while enabling power delivery to heating element 123. The terminal blocks may incorporate compression fittings and multiple sealing surfaces to prevent water ingress / egress along wire paths. Waterproof electrical connectors outside the sealed area are also used and a secondary sealing chamber around electrical connections provides additional protection against water exposure during long-term operation.
[0085] In some embodiments, internal channels 122 incorporate multiple parallel paths with independent heating elements. These configurations enable selective activation of heating zones based on water demand while maintaining overall temperature control. Independent zone control provides enhanced efficiency during low-flow operations.
[0086] In some embodiments varied channel cross-sections are utilized along the flow path. Channel dimensions may increase or decrease to modify local water velocity and heat transfer characteristics. These geometric variations optimize thermal transfer while maintaining consistent output temperature.
[0087] In some embodiments, enhanced surface features are incorporated on heating element 123. Wire surfaces may include micro-texturing or specific coating properties that increase effective surface area while maintaining electrical isolation. These surface17PH4342WO01modifications increase thermal transfer efficiency without changing overall system dimensions.
[0088] In some embodiments, dynamic coil spacing is employed that varies along the flow path. Coil density increases in regions requiring higher heat transfer rates while decreasing in other heating zones. This variable spacing optimizes power utilization while maintaining desired temperature profiles.
[0089] In some embodiments, internal channels 122 include flow directing features that enhance water circulation around heating element 123. Channel walls may incorporate guides or baffles that promote uniform water contact with heating surfaces while preventing flow stagnation.
[0090] In some embodiments, dual-layer heating arrangements may be utilized within internal channels 122. Multiple heating elements operate at different power levels to provide both rapid initial heating and stable temperature maintenance. This layered approach enables efficient power utilization across varying operating conditions.
[0091] In some embodiments, supplemental heating zones are incorporated and dedicated to seat warming. These zones position heating element 123 to optimize heat transfer to seat surfaces while maintaining water heating capability. Supplemental zones operate at lower power levels optimized for seat temperature maintenance.
[0092] FIG. 1C illustrates a cross-sectional view of toilet seat 100, showing the spatial relationship between top portion 131, heating element 123, internal channels 122 containing water volume 135, and bottom portion 133. This view demonstrates the integration of water heating and seat warming functionality through a unified system.
[0093] Top portion 131 and bottom portion 133 form the external surfaces of toilet seat 100, with internal channels 122 contained between these surfaces. The channel walls maintain structural integrity while enabling heat transfer from water volume 135 to seat surfaces. The material and thickness of top portion 131 promotes thermal conductivity for seat warming while maintaining surface temperature within ranges suitable for user contact.18PH4342WO01
[0094] Internal channels 122 create flow paths for water through toilet seat 100, with water volume 135 completely surrounding heating element 123. Water enters channels 122 through water inlet 104, flows past heating element 123, and exits through nozzle assembly 124. The channel geometry maintains water volume around heating element 123 during both static and flow conditions.
[0095] Heating element 123 positioned within internal channels 122 generates thermal energy through electrical resistance when powered. Electrical current supplied through sealed terminal blocks creates uniform heating along the coiled wire configuration. The coil pattern of heating element 123 maintains consistent spacing from channel walls while remaining fully submerged in water volume 135.
[0096] Power delivery to heating element 123 may come from a battery source mounted to bidet 120 or through direct connection to household electrical supply. Control device 106 regulates current flow through heating element 123 based on temperature inputs from temperature sensor 112 and user settings selected through user interface 116.
[0097] Thermal energy generated by heating element 123 transfers through simultaneous pathways. Primary heat transfer occurs directly into water volume 135 through conduction and convection within internal channels 122. Heat transfer also conducts through channel walls into top portion 131 and bottom portion 133, creating seat warming effects. This dual heating pathway enables single heating element 123 to provide both water and seat heating functions.
[0098] Water volume 135 within internal channels 122 circulates around heating element 123 through natural convection during static conditions. When nozzle assembly 124 activates, forced convection from water flow enhances heat transfer from heating element 123 surfaces. The channel geometry promotes uniform water circulation while preventing stagnant zones that could affect heating performance.
[0099] The distance between heating element 123 and channel walls may influence heat distribution through toilet seat 100. Spacing from channel walls to heating element 123 balances water heating efficiency with seat warming effectiveness. This spacing19PH4342WO01remains consistent throughout internal channels 122 to maintain uniform thermal characteristics.
[0100] Control device 106 adjusts power input to heating element 123 based on multiple temperature measurements. Temperature sensor 112 monitors water volume 135 temperature while additional sensors track seat surface temperatures. This data enables control device 106 to maintain both water and seat temperatures within user-selected ranges. User interface 116 enables adjustment of both water and seat temperature settings. Through interface controls, users select desired temperatures between ambient and 104°F (40°C) for water delivery while also setting seat warming preferences from a selection of low, medium, high settings. Visual indicators display current temperature settings and system status during operation.
[0101] Water heated within internal channels 122 discharges through nozzle assembly 124 when activated by user controls. Nozzle valve 130 modulates flow rate based on user input, enabling adjustment of water pressure while maintaining selected temperature. The discharge temperature remains stable through control of heating element 123 power and water flow rate.
[0102] In some embodiments, a mobile application interfaces with control device 106 through wireless communication. The application provides remote control of temperature settings, enables custom program creation, and displays system status. Users may create individual profiles with preferred settings for both water and seat temperatures, which automatically activate upon user selection.
[0103] In some embodiments, scheduled operation modes are incorporated through the mobile interface. Users program specific times for seat warming activation, enabling the system to pre- warm before normal usage periods while conserving energy during inactive periods. The application monitors system status and provides notifications for maintenance requirements or unusual operating conditions.
[0104] In some embodiments adaptive control algorithms are utilized to learn user preferences over time. The system monitors commonly selected settings and usage patterns, automatically adjusting default parameters to match user habits. These learned20PH4342WO01preferences store in system memory while remaining adjustable through user interface 116 or mobile application controls.
[0105] In some embodiments, internal channels 122 incorporate varying cross-sectional geometries along the flow path. Channel dimensions may change to modify water velocity and heat transfer characteristics while maintaining complete submersion of heating element 123.
[0106] In some embodiments, internal channels 122 incorporate multiple parallel paths with independent heating elements 123. Each channel section contains separate heating elements that can be individually controlled, enabling zone-specific temperature adjustment. These zones may operate at different power levels based on proximity to nozzle assembly 124 or seat surface areas requiring focused heating.
[0107] In some embodiments varied channel depths may be utilized along the flow path. Channel depth may increase in regions requiring higher water volume while decreasing in areas focused on seat warming. This variable depth configuration maintains heating element 123 submersion while optimizing thermal transfer for specific channel sections.
[0108] In some embodiments different wire configurations may be employed for heating element 123 based on channel location. Primary heating zones may utilize tighter coil spacing for rapid water heating, while secondary zones incorporate wider spacing for sustained seat warming. Wire gauge selection varies based on zone requirements, with thinner wire providing increased surface area for water heating and thicker wire offering durability in high-flow regions.
[0109] In some embodiments, flow directing features may be incorporated within internal channels 122. Channel walls may include contoured surfaces or flow guides that direct water movement around heating element 123 coils. These features may enhance thermal transfer efficiency by maintaining consistent water contact with heating surfaces during flow conditions.
[0110] In some embodiments, toilet seat 100 may employ dual-layer heating element arrangements within internal channels 122. Primary heating elements provide rapid21PH4342WO01temperature rise while secondary elements maintain steady-state conditions. The layered configuration enables efficient power utilization across varying demand conditions while ensuring temperature stability.
[0111] In some embodiments, toilet seat 100 incorporates comprehensive failure protection systems that monitor multiple operational parameters. The protection system may comprise primary and secondary temperature monitoring that independently track heating element 123 temperature, with redundant sensors positioned at points along internal channels 122. A dedicated microcontroller may also be included and constantly compares temperature readings against predetermined safety thresholds, typically maintaining maximum surface temperatures below 122°F (50°C). Upon detecting temperature reading that trigger safety thresholds, the system executes a rapid shutdown sequence that immediately terminates power to heating element 123 while simultaneously activating a drain sequence. The failure protection system may also incorporate multi-stage leak detection capabilities. Moisture sensors positioned at heating element 123 entry points and along internal channels 122 provide early warning of seal degradation or channel compromise. Upon detecting moisture outside the sealed water pathways, the system enters a lockout mode that prevents power application to heating element 123 until service is performed.
[0112] In some embodiments, a dedicated float sensor system monitors water levels within internal channels 122, preventing heating element activation when water volumes fall below minimum submersion thresholds. This protection layer maintains heating element longevity while preventing conditions that could damage the system. The system may also have ground fault detection to monitor electrical isolation between heating element 123 and water volume 135. The detection system employs high-sensitivity current monitoring that can detect ground faults exceeding standard safety requirements. Upon detecting current leakage, the protection circuit triggers an interrupt that disconnects power. The ground fault system may also incorporate periodic self-test functionality that verifies protection circuit operation, displaying system status through user interface 116.22PH4342WO01Conclusion
[0113] Many modifications and other embodiments of the disclosures set forth herein will come to mind to one skilled in the art to which these present disclosures pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the embodiments of the present disclosure are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the present disclosure. Moreover, although the foregoing descriptions and the associated drawings describe example embodiments in the context of certain example combinations of elements and / or functions, it should be appreciated that different combinations of elements and / or functions may be provided by alternative embodiments without departing from the scope of the present disclosure. In this regard, for example, different combinations of elements and / or functions than those explicitly described above are also contemplated within the scope of the present disclosure. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.23PH4342WO01
Claims
CLAIMS1. A heating system for a toilet seat comprising:a seat body comprising an internal channel configured to contain water;a heating element disposed within the internal channel, the heating element comprising:a conductive wire, wherein the conductive wire has an exterior surface area and the internal channel has a water volume;a water inlet coupled to the internal channel and configured to receive water from a water supply; anda water outlet coupled to the internal channel and configured todischarge heated water;wherein the heating element is configured to heat both the water within the internal channel and the seat body.
2. The heating system of claim 1, wherein the internal channel comprises a plurality of passageways configured to maximize contact between the heating element and the water volume; and wherein the passageways define a flow path optimized for thermal transfer efficiency.
3. The heating system of claim 1, wherein the internal channel comprises aheating section proximate to the water inlet; and a distribution section configured to direct heated water to the water outlet.
4. The heating system of claim 1, wherein the conductive wire is formed into a coil configuration, wherein the coil configuration comprises a plurality of heating segments; wherein each of the plurality of heating segments is configured within a corresponding channel section to maintain a minimum surface contact area with the water volume; and wherein the heating segments are arranged to provide uniform heat distribution throughout the internal channel.24PH4342WO015. The heating system of claim 1, wherein the water inlet comprises a connection to a water supply; and a flow control mechanism configured to regulate water flow through the internal channel.
6. The heating system of claim 1, wherein the internal channel is configured to store a predetermined volume of water for heating prior to discharge.
7. The heating system of claim 4, wherein the heating segments are configured to achieve a predetermined temperature.
8. The heating system of claim 1, wherein the heating element is configured to heat water within the internal channel to a target temperature.
9. The heating system of claim 1, further comprising a temperature monitoring system configured to measure water temperature within the internal channel; and regulate power delivery to the heating element based on the measured temperature.
10. The heating system of claim 1, further comprising a thermal isolation system configured to maintain temperature differential between the heated internal channel and external surfaces of the seat body.
11. The heating system of claim 4, wherein the coil configuration is arranged to provide: a first heating zone proximate to the water inlet; anda second heating zone proximate to the water outlet;wherein the first and second heating zones are configured to provide uniform temperature distribution.
12. The heating system of claim 9, wherein the temperature monitoring system is configured to maintain water temperature between ambient temperature and 104 degrees25PH4342WO01Fahrenheit; and prevent water temperature from exceeding a predetermined maximum temperature threshold.
13. The heating system of claim 1, further comprising a bidet assembly configured to be mounted on a toilet, wherein the bidet assembly comprises a bidet nozzle configured for water discharge.
14. The heating system of claim 13, wherein the bidet assembly comprises a battery power source; and the heating element is configured to operate using power from the battery power source.
15. The heating system of claim 14, wherein the internal channel comprises a network of passageways integrated within the seat body and the heating element is configured to simultaneously heat both the water within the passageways and the seat body.
16. The heating system of claim 14, further comprising a control system configured to:monitor power consumption of the heating element;regulate power delivery from the battery power source; andadjust heating element operation based on available battery capacity.
17. The heating system of claim 14, wherein the water inlet is configured to connect to a water supply line; and the internal channel is configured to maintain the water under pressure from the water supply line while heating.
18. The heating system of claim 14, wherein the heating element comprises a safety isolation system configured to:electrically isolate the heating element from the w'ater: andmaintain thermal conductivity between the heating element and the water.
19. The heating system of claim 14, further comprising a thermal management system26PH4342WO01configured to:monitor temperature of the water within the internal channel;regulate power delivery to the heating element; andmaintain water temperature within a predetermined range.
20. The heating system of claim 14, wherein the internal channel and heating element are configured to:heat a predetermined volume of water to a target temperature; andmaintain heated water temperature during discharge through the bidet nozzle.27PH4342WO01