Cooling element for an electric motor, electric motor and method for cooling the motor
AssigneeZiehl-Abegg Automotive GmbH & Co. KG
InventorsSebastian Martens, Natale Cosmo BIFANO, Sascha KLETT, Maximilian MUNZ
Life of this patent
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Abstract
Heat sink for an electric motor, in particular for a wheel hub drive of a commercial vehicle, with a channel which connects a first connection of the heat sink and a second connection of the heat sink, wherein the channel winds around the heat sink in a spiral. With such a heat sink, a flow condition of coolant within the channel can be generated in which secondary vortices are formed, and the cooling capacity is significantly improved.
Claims18
1-14. (canceled)
A heat sink for an electric motor, comprising:
- a channel extending between a first connection of the heat sink and a second connection of the heat sink, wherein the channel wraps around the heat sink in a spiral.
An electric motor, comprising:
- a heat sink, the electric motor having a channel extending between a first connection of the heat sink and a second connection of the heat sink, wherein the channel comprises a spiral that wraps around the heat sink.
A method for cooling an electric motor with a heat sink having a channel extending between a first connection of the heat sink and a second connection of the heat sink, comprising the steps of:
- guiding coolant within the channel at a flow rate which is sufficiently high enough to yield a Dean number in the channel that is greater than or equal to 50, wherein the channel wraps around the heat sink in a spiral.
The method of claim 31, wherein the flow rate is sufficiently high to yield a Dean number greater than 54.
Dependencies are inferred from the claim text.