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Auxiliary-cooled electronics assembly with extruded cooling cavity

專利號
US11071233B1
公開日期
2021-07-20
申請人
BorgWarner, Inc.（US MI Auburn Hills）
發(fā)明人
Dominique Robert; Glen Kozeli; Philippe Alain Clayton
IPC分類
H05K7/20; H05K9/00
技術(shù)領(lǐng)域
extrusion,metal,fluid,conduit,cap,cooling,can,end,electrical,cover
地域： MI MI Auburn Hills

摘要

An auxiliary-cooled electronics assembly comprises a metal extrusion that includes: one or more cooling conduits extending axially along a length of the metal extrusion with a first open end in fluid communication with the cooling conduit(s); and a second open end in fluid communication with the cooling conduit(s); a first end cap coupled to the first open end forming a fluid-tight seal between the first end cap and the metal extrusion; a second end cap coupled to the second open end forming a fluid-tight seal between the second end cap and the metal extrusion; and one or more electrical circuit components, electrically linked together to form an electrical circuit, mounted to the metal extrusion.

說明書

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
TECHNICAL FIELD

The present application relates to an assembly that houses a plurality of electrical circuit components and, more particularly, to a metal extrusion having a cooling cavity that can receive and communicate cooling fluid.

BACKGROUND

Electrical circuits can be implemented using a variety of different electrical components the selection of which can be chosen depending on the electrical system that is controlled. For example, an electrical system with an electric motor can use electrical components, such as one or more power switches, that selectively flow electrical current to the motor windings of the motor. As the power switches control the flow of electrical current to the electrical motor, heat is generated by the switches. However, heat is often undesirable to the performance of electrical components and electrical circuits. Reducing the temperature of electrical components can increase the performance of an electrical circuit.

Electrical components of electrical circuits can be cooled in a variety of ways. Sometimes, air can be forced over the surface of the electrical components to dissipate the heat given off and carry it away from the electrical circuit. However, flowing ambient air is a relatively inefficient medium for carrying heat away from the electrical components. In contrast, cooled fluid placed in close proximity to the electrical components can be used to more efficiently remove heat. But electrical components are often incompatible with fluid and cannot contact the fluid as the components could with ambient air. It would be helpful to cool electrical components with an assembly that efficiently flows cooling fluid yet maintains a leak-resistant separation between the fluid and the electrical components.

權(quán)利要求

1
What is claimed is:1. An auxiliary-cooled electronics assembly, comprising:a metal extrusion including:one or more cooling conduits extending axially along a length of the metal extrusion, including:a first open end in fluid communication with the cooling conduit(s);a second open end in fluid communication with the cooling conduit(s);a first end cap coupled to the first open end forming a fluid-tight seal between the first end cap and the metal extrusion;a second end cap coupled to the second open end forming a fluid-tight seal between the second end cap and the metal extrusion; andone or more electrical circuit components, electrically linked together to form an electrical circuit, wherein the electrical circuit components are mounted to an exterior surface of the metal extrusion.2. The auxiliary-cooled electronics assembly recited in claim 1, wherein the first end cap is coupled to the first open end and the second end cap is coupled to the second open end with welds.3. The auxiliary-cooled electronics assembly recited in claim 1, wherein the first end cap is coupled to the first open end and the second end cap is coupled to the second open end with one or more mechanical fasteners.4. The auxiliary-cooled electronics assembly recited in claim 1, further comprising a cover, attached to the metal extrusion, encapsulating the electrical circuit components between the metal extrusion and the cover.5. The auxiliary-cooled electronics assembly recited in claim 4, wherein the cover further comprises a metal cover extrusion, having a hollow cross-section that receives the electrical circuit components.6. The auxiliary-cooled electronics assembly recited in claim 4, wherein the cover includes electromagnetic shielding.7. The auxiliary-cooled electronics assembly recited in claim 4, wherein the cover is molded from a composite material.8. The auxiliary-cooled electronics assembly recited in claim 1, wherein the first end cap includes a fluid inlet, a fluid outlet, or both a fluid inlet and a fluid outlet.9. The auxiliary-cooled electronics assembly recited in claim 1, wherein the second end cap includes a fluid inlet, a fluid outlet, or both a fluid inlet and a fluid outlet.10. An auxiliary-cooled electronics assembly, comprising:a metal extrusion including:one or more cooling conduits extending axially along a length of the metal extrusion, including:a first open end in fluid communication with the cooling conduit(s);a second open end in fluid communication with the cooling conduit(s);a cover conduit, extending axially along the length of the metal extrusion, separated from the cooling conduit(s) by a mounting base extending in between the cover conduit and the cooling conduit(s);a first end cap coupled to a first end of the metal extrusion forming a fluid-tight seal between the first end cap and the first open end;a second end cap coupled to a second end of the metal extrusion forming a fluid-tight seal between the second end cap and the second open end; andone or more electrical circuit components, electrically linked together to form an electrical circuit, mounted to the metal extrusion.11. The auxiliary-cooled electronics assembly recited in claim 10, wherein the first end cap covers a first cover conduit end and the second end cap covers a second cover conduit end, thereby enclosing the electrical circuit component(s) within the metal extrusion.12. The auxiliary-cooled electronics assembly recited in claim 10, wherein the electrical circuit components are mounted directly to the mounting base.13. The auxiliary-cooled electronics assembly recited in claim 10, wherein the first end cap is coupled to the first end of the metal extrusion and the second end cap is coupled to the second end of the metal extrusion with welds.14. The auxiliary-cooled electronics assembly recited in claim 10, wherein the first end cap is coupled to the first end of the metal extrusion and the second end cap is coupled to the second end of the metal extrusion with one or more mechanical fasteners.15. The auxiliary-cooled electronics assembly recited in claim 10, wherein the metal extrusion includes electromagnetic shielding.16. An auxiliary-cooled electronics assembly, comprising:a metal extrusion including:one or more cooling conduits extending axially along a length of the metal extrusion, including:a first open end in fluid communication with the cooling conduit(s);a second open end in fluid communication with the cooling conduit(s);a first end cap coupled to a first end of the metal extrusion forming a fluid-tight seal between the first end cap and the first open end;a second end cap coupled to a second end of the metal extrusion forming a fluid-tight seal between the second end cap and the second open end;a metal cover extrusion, including a cover conduit, that couples with the metal extrusion; andone or more electrical circuit components, electrically linked together to form an electrical circuit, mounted to the metal extrusion within the cover conduit.17. The auxiliary-cooled electronics assembly recited in claim 16, wherein the metal extrusion is received within the cover conduit of the metal cover extrusion.18. The auxiliary-cooled electronics assembly recited in claim 17, further comprising a first metal cover extrusion cap and a second metal cover extrusion cap.
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