Homopolar linear synchronous machine

Patent metadata

Field	Value
Publication number	US-11476745-B2
Application number	US-201916576610-A
Country	US
Kind code	B2
Filing date	Sep 19, 2019
Priority date	Sep 19, 2018
Publication date	Oct 18, 2022
Grant date	Oct 18, 2022

Abstract

A moving member of a machine can include a cold plate that serves as a primary structural member for the moving member. The cold plate can have one or more cooling channels formed within the cold plate. A plurality of armature windings can be fixed to the cold plate. One or more field windings can be fixed to the cold plate. A plurality of ferromagnetic cores can be fixed to the cold plate, each ferromagnetic core positioned within a loop of at least one of the plurality of armature windings. Other embodiments are described.

First claim

What is claimed is:

1. A machine having a moving member, the moving member comprising:
a cold plate having one or more cooling channels formed within the cold plate;
a plurality of armature windings, fixed to the cold plate;
one or more field windings, fixed to the cold plate; and
a plurality of ferromagnetic cores fixed to the cold plate, each ferromagnetic core positioned within a loop of at least one of the plurality of armature windings, wherein each of the plurality of ferromagnetic cores is positioned in a respective slot formed through the cold plate.

2. The machine of claim 1 , wherein the one or more field windings is fixed to the cold plate at an outer perimeter of the cold plate.

3. The machine of claim 2 , wherein the plurality of armature windings and the plurality of ferromagnetic cores are fixed to the cold plate within the outer perimeter of the cold plate, within boundary formed by the one or more field windings.

4. The machine of claim 1 , wherein the cold plate is formed from a top plate and a base plate, the one or more cooling channels being formed in the base plate.

5. The machine of claim 1 , wherein the cold plate includes one or more of the following: aluminum, magnesium, stainless steel, titanium.

6. The machine of claim 1 , wherein the cold plate is formed from 304 stainless steel.

7. The machine of claim 1 , wherein the one or more cooling channels form a loop around at least three sides of each of the slots.

8. The machine of claim 7 , wherein a respective slit cuts through the cold plate from each of the slots to an edge of the cold plate, forming a paddle portion between each of the slots and the edge of the cold plate.

9. The machine of claim 8 , wherein the one or more cooling channels loop through each paddle portion from one of the slots to an adjacent slot.

10. The machine of claim 1 , further comprising a cooling ribbon having a cooling channel for circulating coolant, along a length of the field winding.

11. The machine of claim 1 , wherein the plurality of armature coils and the one or more field windings each have at least one flat section that is in contact with the cold plate.

12. The machine of claim 1 , wherein no additional structural members, other than the cold plate, are connected between the plurality of armature windings, the plurality of ferromagnetic cores, and the one or more field windings.

13. An article of manufacture having a moving member, the moving member comprising:
a cold plate having one or more cooling channels formed within the cold plate;
a plurality of armature windings, fixed to the cold plate;
one or more field windings, fixed to the cold plate; and
a plurality of ferromagnetic cores fixed to the cold plate, each ferromagnetic core positioned within a loop of at least one of the plurality of armature windings, wherein each of the plurality of ferromagnetic cores is positioned in a respective slot formed through the cold plate.

14. The article of manufacture of claim 13 , wherein the one or more field windings is fixed to the cold plate at an outer perimeter of the cold plate.

15. The article of manufacture of claim 13 , wherein the plurality of armature windings and the plurality of ferromagnetic cores are fixed to the cold plate within the outer perimeter of the cold plate, within boundary formed by the one or more field windings.

16. The article of manufacture of claim 13 , wherein the cold plate is formed from a top plate and a base plate, the one or more cooling channels being formed in the base plate.

Assignees

• Hyperloop Tech Inc

Inventors

• Jedinger Alexander
• Siraki Arbi Gharakhani
• Johnson Erik
• Beizaee Shahriyar
• Ozer Rachel
• Kim Ju Hyung

Classifications

• H02K11/21

  Devices for sensing speed or position, or actuated thereby (specially adapted for machines having non-mechanical commutating devices H02K29/06, H02K29/14) · CPC title

• H02K15/02

  of stator or rotor bodies · CPC title

• H02K3/28

  Layout of windings or of connections between windings (windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32) · CPC title

• H02K1/141 Primary

  consisting of C-shaped cores · CPC title

• H02K3/24

  with channels or ducts for cooling medium between the conductors · CPC title