PTC Instant Heating Assembly: Dual-Power Smart Bidet Hot Water System For Smart Bidet

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 a core heating component for smart bathroom systems, featuring a high-density PCB design (illustrated green circuit board) integrated with a high-efficiency heating module. Utilizing precision temperature control, it achieves millisecond-level hot water response, while its compact structure seamlessly fits modern smart toilet installations.


II. Core System Analysis

Circuit Control System

  • 4-Layer PCB Design (illustrated green substrate)

  • Key Components:

    • 32-bit ARM processor

    • Precision SMD resistor/capacitor arrays

    • Power driver module

Heating Module System

  • Core Components:

    • 316L stainless steel heating tube

    • Ceramic heat exchanger

    • Dual-waterway design

  • Performance Parameters:

    • Instant Power: 2800W

    • Thermal Efficiency: ≥95%

    • Temperature Control Accuracy: ±0.3°C


III. Key Technical Parameters

Heating Performance

  • Heat-up Time: 25°C → 38°C in ≤2 sec

  • Max. Safe Temp.: 55°C (auto-limited)

Flow Control

  • Flow Rate Range: 150–800ml/min

  • Min. Activation Flow: 30ml/min

Protection System

Dual Leakage Protection
Overcurrent Protection
Overvoltage Protection

Insulation Performance

  • Insulation Resistance: ≥100MΩ

  • Withstand Voltage: 2000V/1min


IV. Product Advantages

Innovations

? Smart Pre-Heating:

  • Usage-pattern learning algorithm

  • Low-power standby (0.5W)
    ? Durability:

  • 100,000 on/off cycles tested

  • -30°C cold-start capability

  • IPX4 waterproof rating

  • 500-hour salt spray test

Reliability

  • Gold-Plated Terminals (illustrated gold contacts)

  • Vibration-Resistant (5–500Hz random vibration tested)

  • 10-Year Lifespan or 20,000 cycles


V. Recommendations

For optimal performance, pair with OEM smart toilet systems.



Custom Smart Toilet Mainboard PCBA

PTC Instant 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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