Brushless coolant pump and cooling system
First Claim
1. A system to cool a plurality of electronic components comprising:
- a reservoir containing a supply of a coolant;
a pump having a brushless motor driving a pumping assembly constructed and arranged to draw the coolant from the reservoir into the pump and to discharge the coolant therefrom under pressure, the brushless motor having a stator, a rotor received in the stator and connected to the pump, and an annular space between the rotor and stator, an electronic control circuit electrically connected to the pump motor and responsive to a control signal to drive the motor and thereby drive the pumping assembly to discharge the coolant under pressure to flow through the annular space in direct contact with the stator and rotor and over the control circuit in contact therewith; and
at least one manifold receiving the coolant under pressure downstream of the pump, stator, rotor, and control circuit and supplying the coolant under pressure to a plurality of outlets through which the coolant is discharged onto the electronic components.
21 Assignments
0 Petitions
Accused Products
Abstract
A liquid pump with a brushless motor constructed to be received within a liquid reservoir of a cooling system to deliver liquid coolant under pressure to a manifold assembly through which the coolant is discharged onto various electronic components to cool them. The pump has a pumping assembly, a rotor, a stator and an electronic control circuit which controls the operation of the pump and each of which is immersed in liquid coolant in the pump housing to cool them as the coolant flows through the pump. Further, because each component within the pump can be exposed to the liquid in the pump, no sealed enclosures are needed for the pump as a whole or for any component therein and the pump can be received directly in the reservoir.
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Citations
26 Claims
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1. A system to cool a plurality of electronic components comprising:
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a reservoir containing a supply of a coolant;
a pump having a brushless motor driving a pumping assembly constructed and arranged to draw the coolant from the reservoir into the pump and to discharge the coolant therefrom under pressure, the brushless motor having a stator, a rotor received in the stator and connected to the pump, and an annular space between the rotor and stator, an electronic control circuit electrically connected to the pump motor and responsive to a control signal to drive the motor and thereby drive the pumping assembly to discharge the coolant under pressure to flow through the annular space in direct contact with the stator and rotor and over the control circuit in contact therewith; and
at least one manifold receiving the coolant under pressure downstream of the pump, stator, rotor, and control circuit and supplying the coolant under pressure to a plurality of outlets through which the coolant is discharged onto the electronic components. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A liquid pump comprising:
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a housing;
a stator with plurality of stator windings received in the housing;
a magnetic rotor received in the stator between the stator windings and with an annular space between the rotor and stator;
a pumping assembly received in the housing and constructed and arranged to draw fluid therein and to discharge the fluid therefrom under pressure, the rotor being operably connected with the pumping assembly to drive it; and
an electronic control circuit electrically connected to the stator windings and responsive to an electric current to selectively sequentially energize the stator windings and create a rotating magnetic field whereby the rotating magnetic field causes the rotor to rotate and drive the pumping assembly and the fluid discharged under pressure flows through the annular space in direct contact with both the rotor and stator and over the control circuit and in contact therewith. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A liquid pump comprising:
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a housing;
a stator with a plurality of stator windings received in the housing;
a magnetic rotor received in the stator between the stator windings;
a pumping assembly received in the housing and constructed and arranged to draw fluid therein and to discharge the fluid therefrom under pressure, the rotor being operably connected with the pumping assembly to drive it;
an electronic control circuit electrically to the stator windings and responsive to an electric current to selectively sequentially energize the stator windings and create a rotating magnetic field whereby the rotating magnetic field causes the rotor to rotate and drive the pumping assembly and the rotor, stator and control circuit are each in contact with the fluid in the housing; and
wherein the fluid is dielectric fluid and the control circuit is uncoated and is in direct contact with the dielectric fluid.
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Specification