DEVICE FOR COOLING A COMPONENT OF AN ELECTRICAL MACHINE USING COOLING COILS

• US 20140102685A1
• Filed: 10/11/2013
• Published: 04/17/2014
• Est. Priority Date: 10/12/2012
• Status: Abandoned Application

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Gadelmeier, Michael-Adolf, Lefrank, Heinrich
• Application Number:
  US14/051,974
• Publication Number:
  US 20140102685A1
• Time in Patent Office: Days
• US Class Current: 165/177
• CPC Class Codes: H02K 1/20 with channels or ducts for flow of cooling medium
• CPC Class Codes: H02K 5/20 with channels or ducts for flow of cooling medium

Abstract

A device for cooling a component includes first and second cooling cons for circulation of a coolant. The first and second cooling coils have serpentine sections and distance sections connecting neighboring ones of the serpentine sections to each other for cooling individual non-neighboring component areas. Each distance section is configured to bridge a component area which is cooled by a one of the serpentine-shaped sections of the first and second cooling coils.

Claims

1. A device for cooling a component, comprising first and second cooling coils, said first and second cooling coils having serpentine sections and distance sections connecting neighboring ones of the serpentine sections to each other for cooling individual non-neighboring component areas, each said distance section being configured to bridge a component area which is cooled by a one of the serpentine-shaped sections of the first and second cooling coils.

2. The device of claim 1, wherein the component is a laminated core of a dynamoelectric machine.

3. The device of claim 1, wherein each of the first and second cooling coils has at least two of said serpentine sections interconnected by a one of the distance sections, said distance section of the first cooling coil being configured to bridge a component area which is cooled by the serpentine-shaped sections of the second cooling coil, and said distance section of the second cooling coil being configured to bridge a component area which is cooled by the serpentine-shaped sections of the first cooling coil.

4. The device of claim 1, wherein the first cooling coil has a single serpentine-shaped section configured to cool a component area, said second cooling coil having at least two serpentine-shaped sections configured to cool component areas which are not cooled by the first cooling coil.

5. The device of claim 1, wherein the first and second cooling coils are each made of a piece of pipe.

6. The device of claim 1, wherein coolant flows through the first cooling coil in one direction of flow, and coolant flows through the second cooling coil in a direction of flow which is different than the direction of flow through the first cooling coil.

7. The device of claim 1, wherein neighboring component areas cooled by serpentine-shaped sections of the first and second cooling coils, respectively, overlap.

8. The device of claim 1, wherein each serpentine-shaped section of the first and second cooling coils have parallel cooling pipes defined by a diameter and spaced from one another by a spacing, said diameter and said spacing being variable.

9. The device of claim 1, wherein one of the neighboring serpentine-shaped sections has six turns and, following the distance section, the other one of the neighboring serpentine-shaped section has a maximum of five turns.

10. The device of claim 1, wherein the component is a member selected from the group consisting of a stator and a rotor.

11. The device of claim 10, wherein at least one member selected from the group consisting of the rotor and the stator forms part of a dynamoelectric machine.

12. The device of claim 11, wherein the dynamoelectric machine is constructed in the form of a torque motor or a linear motor.

13. A method for cooling a component, comprising form-fittingly fitting cooling pipes into prefabricated recesses of the component to produce first and second cooling coils having serpentine sections and distance sections connecting neighboring ones of the serpentine sections to each other for cooling individual non-neighboring component areas, each said distance section being configured to bridge a component area which is cooled by a one of the serpentine-shaped sections of the first and second cooling coils.

14. The method of claim 13 for cooling especially a laminated core of a dynamoelectric machine.