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US 10,763,727 B2Granted
Heat exchanger for electric machines with double end to center cooling
AssigneeSiemens Industry, Inc.
InventorsNicholas G. Lang, Rajendra Mistry
Life of this patent
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Abstract
An electric machine includes an enclosure housing multiple electrical components including a rotor assembly and a stator assembly, a heat exchanger coupled to the enclosure for cooling of the electrical components by creating an internal fluid flow circuit between the heat exchanger and the electrical components, wherein the heat exchanger comprises multiple cooling fluid inlets and a common cooling fluid outlet, wherein the multiple cooling fluid inlets are arranged so that cooling fluid enters the heat exchanger at different sections, and wherein the cooling fluid exits the heat exchanger through the common cooling fluid outlet.
Claims15
An electric machine comprising:
- an enclosure housing multiple electrical components including a rotor assembly and a stator assembly;
- and
- a heat exchanger coupled to the enclosure for cooling of the electrical components by creating an internal fluid flow circuit between the heat exchanger and the electrical components,
- wherein the heat exchanger comprises multiple cooling fluid inlets and a common cooling fluid outlet, wherein the multiple cooling fluid inlets are arranged for cooling fluid to enter the heat exchanger, and wherein the cooling fluid exits the heat exchanger through the common cooling fluid outlet, wherein the heat exchanger including:
- two modular sections that divide a series of horizontal tubes in two sections,
- a heat exchanger housing in which the two modular sections are located within,
- a blower disposed above a centric section of the heat exchanger such that the cooling fluid flows and joins in the centric section and flows in a radial direction towards or away from the common cooling fluid outlet,
- wherein the cooling fluid comprises air flowing through the series of horizontal tubes that are aligned in parallel to two cooling fluid inlets of the multiple cooling fluid inlets with openings thereof ending at both ends of the heat exchanger housing such that ambient air is drawn or absorbed directly from the both ends in the series of horizontal tubes, and
- wherein there is a first internal fluid flow circuit on one side of the blower in a first modular section of the two modular sections of the heat exchanger and there is a second internal fluid flow circuit on other side of the blower in a second modular section of the two modular sections of the heat exchanger to yield a parallel or a counter flow heat exchange arrangement.
6 more elements
A cooling system comprising:
- an electrodynamic machine comprising
- a rotor assembly comprising a lamination section positioned on a rotor shaft;
- a stator assembly defining an annular core receiving the rotor assembly, the rotor assembly rotating within the stator assembly based on electromagnetic fields generated by the stator assembly and the rotor assembly;
- and
- a heat exchanger comprising multiple cooling fluid inlets and a common cooling fluid outlet,
- wherein the heat exchanger is coupled to the electrodynamic machine creating an internal fluid flow circuit between the heat exchanger and the electrodynamic machine,
- wherein the heat exchanger comprises multiple cooling fluid inlets and a common cooling fluid outlet, wherein the multiple cooling fluid inlets are arranged for cooling fluid to enter the heat exchanger, and wherein the cooling fluid exits the heat exchanger through the common cooling fluid outlet, wherein the heat exchanger including:
- two modular sections that divide a series of horizontal tubes in two sections,
- a heat exchanger housing in which the two modular sections are located within,
- a blower disposed above a centric section of the heat exchanger such that the cooling fluid flows and joins in the centric section and flows in a radial direction towards or away from the common cooling fluid outlet,
- wherein the cooling fluid comprises air flowing through the series of horizontal tubes that are aligned in parallel to two cooling fluid inlets of the multiple cooling fluid inlets with openings thereof ending at both ends of the heat exchanger housing such that ambient air is drawn or absorbed directly from the both ends in the series of horizontal tubes, and
- wherein there is a first internal fluid flow circuit on one side of the blower in a first modular section of the two modular sections of the heat exchanger and there is a second internal fluid flow circuit on other side of the blower in a second modular section of the two modular sections of the heat exchanger to yield a parallel or a counter flow heat exchange arrangement.
9 more elements
Dependencies are inferred from the claim text.