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Brushless DC
motors with DC drive
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Brushless DC Motors are designed with NdFeB magnets to have high power and torque density, and small
size structure. It is good for EV, Electric Vehicle and battery
power applications. High efficiency, wide speed range, low EMI and
no brush maintenance are Brushless Motor benefits. |
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1. |
Energy efficiency motor adopts the
high magnetic energy permanent magnet to have high power and
torque density, and small size structure.
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2. |
Innovating
structure to have high torque performance. |
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3. |
Electrical commutation can perform low noise, low EMI and no
brush maintenance. |
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4. |
Lower rotor inertia and good heat dissipation, windings of
Brushless DC motors are in the stator. In a brush-type motor,
the winding is in the rotor. |
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5. |
Power and torque
density are much higher than the conventional motors. |
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6. |
Without mechanical
commutation, motor speed can be over 10,000 rpm. |
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7. |
The innovating structure has an excellent feature in energy
saving during heavy-load operation, and high torque at low
speed driving. The high efficiency range is much wider than
conventional motors. |
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8. |
The drive adopts
the full functions for vehicle needs. Ex. Battery low voltage
protection, alarms, safety switch, FWD/REV, run/stop,…. |
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[ Brushless DC
Motors VS. Induction Motor Vs. Brush Motor ]
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Topic |
Brushless
DC
Motors |
Induction Motor |
DC Brush Motor |
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Compact Size, Light Weight |
◎ |
X |
△ |
Low
Rotor Inertia,
High Speed Rotation |
◎ |
△ |
X |
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No
Rotor Copper Lose |
◎ |
X |
△ |
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High
Efficiency |
◎ |
△ |
△ |
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Heat Dissipation |
◎ |
△ |
X |
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No
Carbon & Electric Flash |
◎ |
◎ |
X |
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Low
Speed Torque |
◎ |
X |
△ |
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No Brush maintenance |
◎ |
◎ |
X |
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Over
Load Capability |
◎ |
X |
△ |
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◎
Excellent
△
Acceptable
X
Poor |
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[ Driver
Functions ]
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[ Driver
protections ]
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Re-Generated braking
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Speed control / torque control
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Buzzer signals
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Key switch
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Safety switch
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Forward / Reverse
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Fault LED
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Over current protection
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Motor over heat protection
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Low voltage protection
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Stall protection
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Driver over heat protection
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Motor phase to phase short circuit protection
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Accelerator initial detection
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Specification |
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Model No. |
BM-180 |
BWM-250 |
BM-370 |
BM-600A |
BM-600B |
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24 |
36 |
24 |
48 |
48 |
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9 |
97 |
12 |
7 |
8 |
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180 |
250 |
370 |
600 |
600 |
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2000 |
250 |
3000 |
9500 |
7100 |
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9 |
8.7 |
19 |
19 |
17 |
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27 |
250 |
40 |
40 |
50 |
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280 |
350 |
650 |
2400 |
2300 |
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2500 |
310 |
3500 |
9000 |
8000 |
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25 |
15 |
50 |
61 |
57 |
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1 |
2 |
3 |
4 |
4 |
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A |
B |
A |
C |
C |
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Model No. |
BM-1000 |
BM-1000A |
BM-1500 |
BM-2200 |
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48 |
48 |
48 |
48 |
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28 |
21 |
44 |
73.2 |
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1000 |
1000 |
1500 |
2200 |
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3400 |
4800 |
3300 |
3000 |
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30 |
25 |
42 |
57 |
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100 |
110 |
115 |
145 |
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2400 |
3300 |
2600 |
2900 |
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4000 |
5500 |
4000 |
4500 |
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95 |
100 |
110 |
140 |
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6 |
5 |
6 |
7 |
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F |
E |
D |
E |
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Note: The driver
functions and protections are varied in different models.
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Motor Dimension |
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TOP
↑ |
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Driver
Dimensions |
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Driver Dimensions
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TOP - |
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