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3M Project Status Update

3M Project Status Update. Agenda. TR600 ATOM - Next Generation TR-300 High Electromagnetic Study Bair Hugger Open Discussion. Agenda. TR600 ATOM - Next Generation TR-300 High Electromagnetic Study Bair Hugger Open Discussion. 3M TR-600 Update. Blower PQ performance.

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3M Project Status Update

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  1. 3M Project Status Update

  2. Agenda • TR600 • ATOM - Next Generation TR-300 • High Electromagnetic Study • Bair Hugger • Open Discussion

  3. Agenda • TR600 • ATOM - Next Generation TR-300 • High Electromagnetic Study • Bair Hugger • Open Discussion

  4. 3M TR-600 Update

  5. Blower PQ performance • At the same PQ performance, the blower with Delta motor show the lower power consumption than current blower • All the fan test by Delta motor drive control board at 11.1VDC

  6. Prototype Blower with Hall sensor • Pin assignment

  7. Prototype Blower with Hall sensor • Winding type • Hall signal pin should add a pull-high resistance to DC voltage • Hall IC PN: MLX92215 Hall 1 Hall 2 Hall 3 U-V V-W W-U • MOTOR PHASE SCEQUENCE

  8. MP schedule • After get the green light from 3M, we will open the tooling and pilot run • Tooling schedule: 6 – 8 weeks • Pilot run schedule: 2 – 4 weeks

  9. Packing Information Bearing Tower: Ypcs Winding Zpcs Rotor: Xpcs • There are three parts to packing separately in it’s own carton.

  10. Open Issue • Reliability and Life evaluation • As 3M feedback, 3M want blower could withstand impact well with anything over a 1m drop, Delta need the test spec/procedure from 3M to evaluate the structure strength to withstand impact. • Reliability and life test requirement from 3M • Control method : base on Delta control board or 3M specify control • Test Condition and Criteria

  11. Agenda • TR600 • ATOM - Next Generation TR-300 • Customer Requirement • Performance Design Target • Blower Proposal • Performance Result • Summary • High Electromagnetic Study • Bair Hugger • Open Discussion

  12. Customer Requirement • Blower size: • Max. scroll diameter : 115mm • Max. scroll thickness : 20mm W/O motor, up to 30.5mm including motor • Outlet size : 27mm ID and 32.5mm OD • Flow vs. Pressure curve : • Roughly match or exceed the TR-600 in the range from 160-280 LPM. • Efficiency : • Keep (or improve) the motor efficiency as TR-600

  13. Performance Design Target TR-600 TR-600 • Delta will increase the PQ performance and keep (or improve) the motor efficiency as TR-600.

  14. Blower Proposal • Scroll diameter • Scroll diameter • Scroll thickness • With motor • Blower Dimension • Scroll thickness

  15. X01 Sample Performance 3-Phase motor Mockup sample available

  16. Performance Comparison • Delta X01 sample improved the blower efficiency and better than the target TR-600.

  17. Blower Proposal • Delta X01 sample have better efficiency than TR-600 at 185 & 240LPM with different pressure

  18. Summary • Delta X01 sample could meet 3M PQ performance target with better efficiency. • We are waiting 3M next plan

  19. Agenda • TR600 • ATOM - Next Generation TR-300 • High Electromagnetic Study • Criterion & Spec • Simulation Result • Test Condition • Test Result by increasing case thickness • Test Result with High Magnetic Rotor • Summary • Bair Hugger • Open Discussion

  20. Criterion & Spec. • Criterion : • In 500 Gauss (50mT) ambient • Spec. • Fan speed reduction <5% • Fan current increase <10%

  21. Test Condition N S N S • Test in 500 Gauss (50mT) • Radial field • Axial field

  22. Test by Different Case Thickness • Increasing the iron case cannot block the influence of external magnetic fields effectively

  23. Test by Different Type Motor Si-steel Iron case ROTOR STATOR ROTOR Winding Winding STATOR Magnet Magnet Fan A motor TR300 motor • Difference between TR300 and Fan A • Relative position of rotor and stator (inner rotor vs. outer rotor) • Magnetic strength (3600 Gauss vs. 760 Gauss) • Fan A can meet target of speed and current

  24. Summary • Increasing the iron case cannot block the influence of external magnetic fields effectively • Next Step • Find out the key factor that could reduce the effects of magnetic fields

  25. Agenda • TR600 • ATOM - Next Generation TR-300 • High Electromagnetic Study • Bair Hugger • Open Discussion

  26. Customer Information • Current product using PSC blower PB249743HB2M. • On the current blower in 3M system, they are having issue with a high pitch noise. 3M is working on resolving it. • Fan can be smaller, not bigger.

  27. Customer Fan Spec • Blower size: • Max. scroll diameter : 156mm • Max. scroll thickness : 58mm W/O motor, up to 100mm including motor • Outlet size : 56mm ID

  28. Delta Proposal • Delta have no suitable existing model could use in this project • Blowers dimension (include inlet/outlet sharp and dimension) are not the same with 3M current model • Need to evaluate the materials selection as fan operation in blanket warming machine • The similar blower performance as below

  29. Project Discussion • Blower limitation • Dimension (scroll size, thickness, mounting hole, inlet and outlet sharp) • Weight limitation • Blower operation environment • Operation Point of the blower • Temperature of hot air that though the blower • Reliability • 3M requirement (Life, reliability test condition and Criteria) • Other special requirement • Current issue in 3M (high pitch noise) • Acoustic spec. for blower or system

  30. Agenda • TR600 • ATOM - Next Generation TR-300 • High Electromagnetic Study • Bair Hugger • Open Discussion

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