VERSATILE COOLING HOUSING FOR AN ELECTRICAL MOTOR

• US 20150145356A1
• Filed: 11/28/2014
• Published: 05/28/2015
• Est. Priority Date: 11/27/2013
• Status: Active Grant

• Current Assignee: ABet SKF
• Original Assignee: SKF Magnetic Mechatronics, SAS (ABet SKF)
• Inventors: SOULIER, Nicolas, FERRARI, Sebastien, LAFON, Stephane, MOUREAUD, Alexandre
• Granted Patent: US 9,755,474 B2
• Time in Patent Office: Days
• US Class Current: 310/54
• CPC Class Codes: H02K 5/18 with ribs or fins for improving heat transfer
• CPC Class Codes: H02K 5/203 specially adapted for liquids, e.g. cooling jackets
• CPC Class Codes: H02K 9/14 wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle

Abstract

An electrical device comprising a housing having cooling fins located in a central portion along an exterior surface of the housing and a laminated magnetic stack disposed within the housing and interfacing with an interior surface of the housing at the central portion. The cooling fins are configured alternatively higher and smaller on an inlet manifold and in opposition on an outlet manifold.

Claims

1. A housing for an electrical device, comprising:

an interior surface configured to interface in a central portion with a laminated magnetic stack of the electrical device; and

an exterior surface comprising in the central portion cooling fins, wherein the cooling fins are alternatively higher and smaller on an inlet manifold and in opposition on an outlet manifold.

2. The housing of claim 1, further comprising a cover plate having an inlet hole and an outlet hole and which rests on the higher cooling fins in order to create a liquid cooling path between higher and smaller cooling fins from the inlet hole to the outlet hole.

3. The housing of claim 2, wherein the cover plate is affixed to the housing by a fixing element and seals are fitted between the cover plate and the housing for isolating the liquid cooling.

4. The housing of claim 1, wherein the cooling fins are realized by sand casting such that the surface roughness of the exterior surface is well adapted for heat exchanges.

5. A electrical device, comprising:

a housing having cooling fins located in a central portion along an exterior surface of the housing; and

a laminated magnetic stack disposed within the housing and interfacing with an interior surface of the housing at the central portion,

wherein the cooling fins are alternatively higher and smaller on an inlet manifold and in opposition on an outlet manifold.

6. The electrical device of claim 5, the housing further comprising a cover plate having an inlet hole and an outlet hole and which rests on the higher cooling fins in order to create a liquid cooling path between higher and smaller cooling fins from the inlet hole to the outlet hole.

7. The electrical device of claim 5, wherein the housing is directly connected with the inlet manifold and the outlet manifold for creating a gas cooling flow.

8. The electrical device of claim 5, further comprising one of the following devices:

a motor, a generator, a starter, and an alternator.