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Smart Humidifier Display and Actuator PCBA Set
An FCC-photo reference showing an H7149 fan or airflow sub-board and a main display board with dual-digit indication, humidity and wireless icons, and four spring-touch electrodes.
Project context
How this product is typically engineered
An FCC-photo reference showing an H7149 fan or airflow sub-board and a main display board with dual-digit indication, humidity and wireless icons, and four spring-touch electrodes.
System architecture
Typical architecture
A representative low-voltage system reads humidity, water-level, temperature, and touch inputs, then coordinates a fan, display, lighting, and a protected humidification power stage; the exact atomization and radio implementations remain configuration-dependent.
Engineering risks to resolve
Decisions to close before release
- Shut down safely for low water, abnormal resonance, fan stall, over-temperature, or sensor disagreement.
- Keep mist, condensation, scale, and cleaning agents away from connectors, touch nodes, power electronics, and sensing surfaces.
- Prevent high-frequency drive noise and wet-hand touch events from disturbing humidity readings or control stability.
Validation plan
Checks to define before production
- Inject low-water, overfill, tilt, leak, fan-stall, atomizer open or short, temperature, and humidity-sensor faults.
- Measure humidity accuracy, control hysteresis, cold-condensation recovery, wet-hand touch behavior, noise, and 24-hour cycling.
- Run scale and cleaning-agent exposure, corrosion, low-voltage startup, ESD, EFT, emissions, and interrupted-update tests.
What to put in the RFQ
Files and records to agree before quoting
Use this list to agree the build inputs and release records for a similar product. The final set depends on the project.
Design baseline
Released schematic or block diagram, interface table, power states, critical constraints, and revision owner.
Manufacturing release
Gerber or ODB++, stack-up, centroid data, assembly drawings, approved DFM dispositions, and panel assumptions.
Material control
Released BOM revision, manufacturer part numbers, AVL or alternate rules, no-substitute lines, MSL handling, and exception approvals.
Validation record
Test method, acceptance criteria, sample or serial identity, measured result fields, and disposition. Example scope: Inject low-water, overfill, tilt, leak, fan-stall, atomizer open or short, temperature, and humidity-sensor faults.
Production release
First-article status plus the agreed SPI, AOI, X-ray, ICT, FCT, programming, rework, OQA, labeling, and packing records.
During RFQ review, we confirm the required fields, sampling, limits, approvals, and record-retention period. Confidential project information stays within the agreed access rules.
Development and production controls
Typical manufacturing scope
- Humidity and water-state control.
- Display and spring-touch HMI.
- Fan and humidification-stage coordination.
Technical image review
Board-level evidence
White-background views are published to make component placement, interfaces and assembly boundaries easier to inspect.
