Self-Regulating Instant Heat Module: Micro-Channel Ceramic Heater For Smart Toilets

SZH's smart toilet control board PCBA is designed for premium electronic bidets, integrating seat heating, energy-saving algorithms, and multi-layer safety protection for enhanced user experience. With over 10 years of expertise, we provide ODM/OEM solutions for global brands, leveraging advanced R&D in precision molds and vertically integrated supply chains for fast delivery and cost efficiency. Annual production capacity exceeds 2 million units, SZH provide flexible customization, empowering clients to lead the smart bathroom market.

  • SZH
  • China
  • Information

I. Product Overview

       This instant water heater is the core heating component of smart bathroom systems, utilizing next-generation flash-heating technology to deliver second-level hot water response. As illustrated, the product consists of a high-density circuit control system and a high-efficiency heating module, featuring CNI-certified industrial-grade design to provide stable and continuous hot water supply for smart toilets. Its compact structure (white housing in illustration) integrates waterway control, temperature regulation, and safety protection into a complete functional module, meeting modern bathroom systems' demands for energy efficiency, high performance, and precise temperature control.


II. Core System Analysis

Circuit Control System

  • Main Control Board:

    • 32-bit microprocessor architecture

    • Precision SMD component layout (capacitor/resistor arrays)

Heating Module

  • Core Components:

    • 316L stainless steel heating tube (inside housing)

    • Ceramic heat exchanger

    • Dual-channel water flow design

  • Performance Parameters:

    • Instant power: 3000W

    • Thermal conversion efficiency: ≥96%

    • Water temperature fluctuation: ±0.5°C


III. Key Technical Parameters

Heating Performance

  • Heat-up Curve:

    • 25°C → 40°C in ≤3 sec

    • Max. output temperature: 55°C

  • Flow Characteristics:

    • Operating flow rate: 200–800ml/min

    • Minimum activation flow: 50ml/min

Electrical Safety

  • Insulation Properties:

    • Insulation resistance: ≥100MΩ

    • Withstand voltage: 1500V/1min

  • Protection System:

    • Leakage current cutoff: 6mA

    • Overload protection response: <0.1s


IV. Intelligent Control System

Temperature Management

Triple-Sensor System:

  • Inlet temperature monitoring

  • Heating tube temperature tracking

  • Outlet temperature closed-loop feedback
    Control Algorithm:

  • Adaptive PID 3.0

  • Dynamic power compensation

  • Low-temperature preheat strategy

Safety Protection

5-Layer Protection:

  1. Double insulation (basic + supplementary)

  2. Water-electric separation (isolated chamber in illustration)

  3. Fuse-based overheat protection

  4. Flow anomaly auto-shutdown

  5. Pressure relief valve (1.8MPa)


V. Product Advantages

Technological Innovations

? Energy Efficiency Breakthroughs:

  • Standby power <0.5W

  • 35% energy savings vs. traditional heaters
    ? Smart Features:

  • Usage frequency learning

  • Off-peak power mode

  • Self-diagnostic error codes

Reliability Assurance

? Durability Tests:

  • 100,000 on/off cycles

  • 5,000 hours continuous operation

  • -30°C cold-start validation


VI. Maintenance & Lifespan

Professional maintenance recommended every 12 months or 3,000 operating hours, including:

  • Pipe descaling

  • Circuit inspection



Custom Smart Toilet Mainboard PCBA

Self-Regulating Heaters

Modular Function Design

Core Functions (Rapid Integration)

Heating

Cleaning

Control

 Hygiene  

Seat heat

Bidet wash

Power-off flush

Nozzle clean

Dry heat

Feminine wash

Foot-sense flush

Foam shield

Temp adjust

Massage spray

Auto flush  

 

Advanced Customization

- Electronic Extensions:  

  IoT Control: APP/Wireless remote  

  HMI: Smart display + Voice feedback  

  Health: urinalysis (interface reserved)  

- Mechanical Synergy:  

  Auto-lid motor drive optimization  

  Precision foam generator control  

 

End-to-End Development

 Vertical Manufacturing Advantage:  

  Mold R&D: fast structural development (solves deformation/leaks)  

  Electro-mechanical integration: Unified PCBA & heating module design  

  Pilot to mass production: in-house SMT+assembly to ensure fast production


Competitive Benchmarking


Traditional Development Pain Points

Our Solutions

Technical Support

slow development due to excessive feature integration

Modular design + pre-reserved interfaces

patent portfolio

Electro-mechanical design misalignment

Parallel electro-mechanical co-development

In-house mold center + SMT production lines

Lengthy certification cycles

Pre-validated architecture (50% test time reduction)

10-year ODM empirical database 

Transform your smart toilet concept into a market-ready product. Welcome to contact with us today for a personalized proposal with functional prototypes, BOM optimization analysis, and turnkey delivery schedule.


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