Tel: +86-13922909212   |  Email: wst01@winsharethermal.com
Inverter Heat Sink Manufacturer
Inverter cooling solution
Variable-frequency drives (VFD) use variable frequency techniques andthe microelectronic technology to control the electric power control equipment of AC motors by a way of changing the working voltage and frequency of the motor. A VFD is composed of a rectifier (AC to DC),

Cooling solutions for variable-frequency drives (VFD)

Variable-frequency drives (VFD) use variable frequency techniques andthe microelectronic technology to control the electric power control equipment of AC motors by a way of changing the working voltage and frequency of the motor. A VFD is composed of a rectifier (AC to DC), filter, inverter (DC to AC), activating unit, driving unit, detective unit, and micro-processing unit. The on/off of the IGBT inside a VFD is used to adjust the voltage and frequency of the output power. The required power voltage can be adjusted according to the motor's actual requirements so as to achieve the purpose of saving energy and adjusting speed.
VFD cooling is critical to the performance and service life of a VFD. It is no doubt that a good cooling for a VFD is essential, especially under the condition of fierce competitions since good cooling can enhance the quality of a VFD and enhance its competitiveness. For many years, Winshare Thermal has been providing various VFD manufacturers with advance cooling techniques and services. We supply tailor-made cooling solutions to our clients' VFDs along with effective technical supports on thermal simulation, thermal testing, etc. We safeguard the stability of the performanceof our VFD products.
Below figure on the left is the figure of the InfineonFF600R17 internal structure and the schematic of heat-dissipating elements. The total power is 660W. We assume the thermal interface material as Thermal grease 7762 with a thickness of 0.2mm.

 

 H.S
Max Temp

 H.S Max DT

Diode case temp
(⁰C)

Maximum node temperature of
IGBT internal core device (⁰C)

Max Junction Temp.

NTC temp.
#1

NTC temp.
#2

NTC DT

#1

#2

H.S. with H.P.

91.6

41.6

89
88.7
84.8

88.9

90.1

1.2

107.7

108.9

Ambient temperature: 50⁰C; assuming Thermal grease 7762 with a thickness of 0.2mm.

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Tel: +86-13922909212 ( Mr·Li )
Email: wst01@winsharethermal.com
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