Junqi 24V 26M³/H Airflow Brushless DC Blower Fan OWB7050 For
Medical Device
Brushless DC Micro Air Blower Features :
1: High speed, specialized high-speed ball bearing offering long
service life and lower noise
2: High pressure and airflow output by compact size design
3: High efficiency, much more efficient than brush motor blower
4: High reliability, specialized controller make the working more
reliable
5: High intelligent, PWM speed regulation, positive inversion, PG
signal feedback, intelligent controlling
2: Blower Technical Parameters
| Model | OWB7050-24V |
| Rated Voltage | 24VDC |
| Outlet Open |
| Current | 1.8A |
| Rated Speed | 33000rpm |
| Air Flow | 28m³/h |
| Outlet Sealed |
| Current | 1.0A |
| Speed | 37000rpm |
| Air Pressure | 5.0Kpa |
| Resistance/Phase | 1.6 Ohm |
| Induction/Phase | 0.5~0.6mH |
| Motor Pole pairs | 2 |
| Noise | 70dB(A) |
| Blower Fan Motor Parameters |
| Motor Type | Three Phase Brushless DC Motor |
| Bearing Type | NMB Ball Bearing |
| Insulation Class | Class F |
| Protect Class | IP54 |
| Operating Temperature range | -20℃~+50℃(No Condensation) |
| Hall Effect Sensor | 120° |
| Speed@hall sensor frequency | 1Hz=30r/min |
| Service Life MTTF(25℃ Rated Operation Point) | 15000 hours |
| Weight | 220g |
| Matched Driver | BLDC2403 |
3: OWB7040AL DC Blower P-Q Curve:
4: Overall dimensions
5: Wiring diagram
| HX25002-5Y |
| Pin 1 | 26AWG | Red | +5V |
| Pin 2 | 26AWG | Purle | Hall A |
| Pin 3 | 26AWG | Green | Hall B |
| Pin 4 | 26AWG | Grey | Hall C |
| Pin 5 | 26AWG | Black | GND |
| HX39600-3Y |
| Pin 1 | 20AWG | Yellow | Phase A |
| Pin 2 | 20AWG | Blue | Phase B |
| Pin 3 | 20AWG | White | Phase C |
6: Attentions
1: Do not working under the max air pressure, the air flow is too
small at max air pressure, and it's not safe for using.
2: Add a filter attach to the intake makes the blower bearing
longer service life.
3: The correct rotation direction is CCW
4: Do not use the blower in High temperature ,high humidity, high
magnetic fields
5: Please use suitable power supply for the blower.
FAQ:
Q: Can you design a new blower fan if we give you target
performance?
A: Yes, we offer ODM service for both blower fan and
controller board
Q: Can we connect this centrifugal air blower directly onto
power source?
A: This blower fan is with BLDC motor inside and it needs a
controller board to run.
Q: What kind of power source shall we use to drive this
blower fan?
A: Generally, our customers use 24vdc switching power supply
or Li-on battery.
Q: Do you also sell controller board for this blower fan?
A: Yes, we can supply adapted controller board for this
blower fan.
Q: How to change impeller speed if we use your controller
board?
A: You can use 0~5v or PWM to change speed. Our standard
controller board is also
with a potentiometer to change speed
conveniently.
Q: What is the MTTF of this centrifugal air blower?
A: MTTF of this centrifugal air blower is 20,000+ hours
under 25 C degree.
Q: Can we use this centrifugal air blower to suct water?
A: This blower fan can not be used to suck water. If you need
to suck water, you can ask us to
choose proper item for this special working
condition.
Q: Can we use this centrifugal air blower to suck dust
directly?
A: This blower fan can not be used to suck dust directly.If
you need to suck dust, you can ask
us to choose proper item for this special
working condition.
