WELL-15 · Wellness Electronics
Back Kneading Massager Main Control PCBA
A representative low-voltage kneading platform for a geared motor, controlled reversal, current-based jam detection, local indication, optional warming, rechargeable power, and wireless interaction.
Project context
A representative engineering program
A representative low-voltage kneading platform for a geared motor, controlled reversal, current-based jam detection, local indication, optional warming, rechargeable power, and wireless interaction.
System architecture
How the electronics are organized
A battery or low-voltage input feeds an H-bridge and logic supply; an MCU sequences soft start, forward and reverse kneading, current monitoring, NTC input, light rings, a button sub-board, and optional wireless control.
Engineering risks to close
What must be resolved before release
- Separate normal startup and kneading load from a trapped-fabric or mechanical jam.
- Reverse the geared mechanism without bridge shoot-through or damaging torque shock.
- Maintain connector, antenna, and sensor integrity beside a vibrating gear train.
Validation plan
Evidence expected before production
- Measure direction, speed, current, reversal dead time, noise, and controlled-stall shutdown.
- Test battery sag, bridge faults, NTC faults, fabric ingress, and wireless operation under motor noise.
- Run loaded direction cycling, gear and bearing endurance, harness vibration, and optional heat-surface mapping.
Decision-ready evidence packet
What a comparable RFQ should define
This checklist turns the technical story into reviewable inputs and release records. It describes what buyers and manufacturers should agree—not a claim that every listed record applies to every build.
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: Measure direction, speed, current, reversal dead time, noise, and controlled-stall shutdown.
Production release
First-article status plus the agreed SPI, AOI, X-ray, ICT, FCT, programming, rework, OQA, labeling, and packing records.
Project-specific fields, retention periods, sampling rules, measured limits, and customer approvals are confirmed during RFQ and protected under the applicable confidentiality agreement.
Development and production controls
Manufacturing scope represented here
- Bidirectional geared-motor control.
- Current-based overload detection.
- Light, button, NTC, and wireless interfaces.
Technical image review
Board-level evidence
White-background views are published to make component placement, interfaces and assembly boundaries easier to inspect.
