Active cooling of specially coated ecu/pcba in electric transmission oil pump
AssigneeHanon Systems EFP Canada Ltd.
InventorsHarpreet Singh, Matthew Williamson
Life of this patent
Estimating the term…
Abstract
A liquid pump includes a pumping mechanism configured to pump a liquid, a housing assembly housing the pumping mechanism therein while defining a wet cavity through which at least a portion of the liquid pumped by the pumping mechanism flows during operation thereof, and an electronic control unit of the liquid pump disposed within the wet cavity of the housing assembly and in fluid communication with the at least the portion of the liquid flowing therethrough. At least a portion of the electronic control unit is coated with a protective coating to prevent direct exposure of the at least the portion of the electronic control unit to the at least the portion of the liquid flowing through the wet cavity.
Claims20
A liquid pump comprising:
- a pumping mechanism configured to pump a liquid;
- a housing assembly housing the pumping mechanism therein, the housing assembly defining a wet cavity through which at least a portion of the liquid pumped by the pumping mechanism flows during operation thereof;
- an electronic control unit of the liquid pump disposed within the wet cavity of the housing assembly and in fluid communication with the at least the portion of the liquid flowing therethrough, wherein at least a portion of the electronic control unit is coated with a protective coating to prevent direct exposure of the at least the portion of the electronic control unit to the at least the portion of the liquid flowing through the wet cavity.
A liquid pump comprising:
- a pumping mechanism configured to pump a liquid;
- a housing assembly housing the pumping mechanism therein, the housing assembly defining a wet cavity through which at least a portion of the liquid pumped by the pumping mechanism flows during operation thereof;
- an electric motor assembly of the liquid pump disposed within the wet cavity of the housing assembly and in fluid communication with the at least the portion of the liquid flowing therethrough;
- and
- an electronic control unit of the liquid pump disposed within the wet cavity of the housing assembly and in fluid communication with the at least the portion of the liquid therein, the electronic control unit including one or more electrolytic capacitors, wherein at least a portion of each of the one or more electrolytic capacitors is coated with a protective coating to prevent exposure of an internal element of each of the one or more electrolytic capacitors to the at least the portion of the liquid flowing through the wet cavity.
Dependencies are inferred from the claim text.