Water Cooled Outrunner Motor

Overview

Based on our high torque frameless motors this water cooled PMSM outrunner was developed. A high efficiency motor with a very high power density of >1.2 kW/kg is obtained by implementing water cooling in combination with an optimized electromechanical design. The sensor-less motor can be driven with off the shelve inverters suitable to support PMSM motors. This configuration provides a cost efficient overall solution.

Furthermore the motor can be adapted to customer specific mechanical and electrical requirements.

Features

Key features:

•  High torque density
•  High efficiency
•  Transmission not required
•  High reliability and lifetime
•  Maintenance free
•  Quiet operation

Specs

Technical Data

 

Kt  [Nm/Apk]

0.94

  

Kemf [Vpk/rad/s]

1.09

  

R phase @ 20°C [Ω]

0.133

  

L phase [mH]

0.87

  

Dimensions [mm]

Ø113 x 192

(excluding shaft)

Mass [kg]

7.8

  

Rpm

Torque [Nm]

Mech. Power [W]

Elect. Power [W]

V line-line [V_pk]

I line [A_pk]

Efficiency [%]

0

50.0

0

3012

36.2

96.0

0.0%

500

50.0

2618

5740

103.4

97.3

45.6%

1000

45.0

4712

6912

160.9

81.1

68.2%

1500

40.0

6283

7815

210.9

66.6

80.4%

2000

35.0

7330

8403

255.9

54.0

87.2%

2500

30.0

7854

8628

298.7

43.2

91.0%

3000

30.0

9425

10253

355.7

43.3

91.9%

3400

25.0

8901

9541

385.1

34.1

93.3%

3840

25.0

10053

10748

433.5

34.1

93.5%

Publications
water cooled outrunner motor , Wassergekühlter Außenläufermotor