PCBA Consumer Electronics UV Sanitizer Box SMT Printed Circuit Board Assembly

PCBA Images

About TECircuit

Found: TECircuit has been operating since 2004.

Location: An electronics manufacturing service(EMS) provider located in Shenzhen China.

Item: Customizable EMS PCB, offers a full range of one-stop shop services.

Service: Printed Circuit Board (PCB)and Printed Circuit Board Assembly(PCBA), Flexible Printed Circuit Board(FPC), Components Sourcing, Box-Building, Testing.

Quality Assurance: UL,ISO 9001, ISO 14001, ISO 13485, ITAF 16949 andcomplied with ROHS and REACH.

Factory Pictures:
Company's own plant : 50,000 sqm; Employees : 930+; Monthly production capacity : 100,000 m2

PCBA Applications

• Personal Electronics and Small Item Sanitization: The PCBA automates the disinfection cycle for frequently touched personal items such as smartphones, watches, earphones, keys, and masks. It provides a hands-free, chemical-free method to reduce germs on surfaces.
• Infant Care and Toy Sterilization: Used to sanitize baby bottles, pacifiers, teething toys, and small plastic toys. The PCBA ensures a controlled, timed UV-C exposure to help eliminate bacteria and molds without using heat or chemicals, which is crucial for infant safety.
• Travel and Portable Hygiene: Serves as a compact solution for travelers to sanitize personal items like toothbrushes, razors, and jewelry in hotel rooms, addressing hygiene concerns while on the go.
• Medical and Dental Instrument Sanitation (Non-Critical): Employed in clinics or home-care settings for the supplementary sanitation of non-critical, heat-sensitive items such as dental retainers, nail clippers, or certain small tools, following proper medical guidelines.
• Beauty and Personal Care Tool Maintenance: Provides a method for sanitizing makeup brushes, razors, tweezers, and hair clippers, helping to maintain tool hygiene and prevent skin issues caused by bacterial buildup.
• Household and Office Use: Offers a convenient way to disinfect shared or high-touch items in common areas, such as remote controls, stationery, or office badges, contributing to a cleaner environment.

PCBA Features

1. UV-C LED Driver and Control Circuitry: The PCBA integrates a constant-current driver circuit specifically designed to power and control high-output UV-C LEDs. This circuit ensures the LEDs operate at their optimal wavelength (typically 260-280nm) and intensity for effective germicidal action while managing their lifespan.
2. Precision Timing and Cycle Management Microcontroller: At its heart, a microcontroller manages the entire sanitization cycle. It controls the exact duration of UV exposure (e.g., 3, 5, or 10 minutes), manages user-selected modes, and drives the display or indicator lights to show cycle status and completion.
3. Safety Interlock and Lid Sensor System: A critical safety feature involves a sensor (often a reed switch or hall-effect sensor) that detects if the box's lid is securely closed. The PCBA's logic is designed to immediately cut power to the UV-C LEDs if the lid is opened during a cycle, preventing accidental exposure to harmful UV-C radiation.
4. Reflective Chamber Optimization: The PCBA design often includes simple circuits to control optional supplemental LEDs (like white light for visibility) within a chamber lined with reflective aluminum to maximize UV light distribution and ensure even exposure to all item surfaces.
5. User Interface and Status Indication: Features interfaces for control buttons (power, timer selection) and drivers for LEDs or a simple digital display. It provides clear visual feedback about the operating mode, cycle countdown, and safety lock status.
6. Advanced Power Management (PMIC): Utilizes a Power Management IC (PMIC) to efficiently handle power conversion from an AC adapter or a built-in battery (for portable models). It provides stable voltage to the microcontroller and the high-current UV-LED driver, often incorporating charging management for battery-powered units.
7. Durable and Safe Enclosure Integration: The PCBA is designed to fit securely within a light-sealed enclosure. Its layout considers the placement of safety sensors and is constructed with materials resistant to prolonged UV exposure to ensure long-term reliability.

FAQ

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