CN220797919U

CN220797919U - Insulating skeleton, motor, electromagnetic suspension and vehicle

Info

Publication number: CN220797919U
Application number: CN202322384153.8U
Authority: CN
Inventors: 靳浩宁
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2023-08-30
Filing date: 2023-08-30
Publication date: 2024-04-16
Anticipated expiration: 2033-08-30

Abstract

The utility model belongs to the technical field of motors, and particularly relates to an insulating framework, a motor, an electromagnetic suspension and a vehicle. The insulation framework comprises a first framework, a second framework and a clamping structure, the first framework and the second framework are in butt joint along the axial direction of the primary iron core of the motor to form a closed structure, and the closed structure is used for being sleeved on the primary iron core; opposite ends of the first framework and the second framework are connected through a clamping structure. According to the utility model, the first framework and the second framework are connected in a clamping way through the clamping structure, so that the connecting strength is good, the insulating framework is not easy to loosen, and the stability is good.

Description

Insulating skeleton, motor, electromagnetic suspension and vehicle

Technical Field

The utility model belongs to the technical field of motors, and particularly relates to an insulating framework, a motor, an electromagnetic suspension and a vehicle.

Background

The stator typically includes an insulating armature, a stator core, and windings. The windings are arranged on an insulating framework by adopting concentrated windings, and the insulating framework has the functions of realizing the insulation between the stator iron core and the windings and supporting the windings.

An existing insulating framework comprises two circumferentially extending groove sections, wherein the two groove sections are spliced to form the insulating framework with annular grooves, and windings are wound in the annular grooves of the insulating framework.

Above-mentioned insulating skeleton is formed through two slot segment butt splices, does not have location structure between two slot segments, and the cooperation is loose, and insulating skeleton is easy not hard up, and stability is relatively poor, and winding in-process probably can cause the winding bad.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: aiming at the problems that the existing insulating framework is easy to loosen and poor in stability, the insulating framework, the motor, the electromagnetic suspension and the vehicle are provided.

In order to solve the technical problems, in one aspect, an embodiment of the present utility model provides an insulating framework, which includes a first framework, a second framework, and a clamping structure, where the first framework and the second framework are abutted along a circumferential direction of a primary iron core of a motor to form a closed structure, and the closed structure is used to be sleeved on the primary iron core;

opposite ends of the first framework and the second framework are connected through the clamping structure.

Optionally, the clamping structure includes a first clamping piece arranged on the first framework and a second clamping piece arranged on the second framework and clamped with the first clamping piece, one of the first clamping piece and the second clamping piece is a protrusion, and the other is a groove matched with the protrusion.

Alternatively, the protrusion protrudes toward the central axis of the insulating frame, and the groove is recessed toward the central axis of the insulating frame and opens toward the protrusion.

Optionally, the clamping structure further comprises an extension part and a containing groove matched with the extension part, wherein one of the extension part and the containing groove is arranged on the first framework, and the other one of the extension part and the containing groove is arranged on the second framework;

the accommodating groove is provided with a first surface, the bulge is arranged on the first surface, the extension part is provided with an extension surface and a second surface attached to the first surface, the groove is arranged on the second surface, and the extension surface is coplanar with the inner side surface of the first framework and the inner side surface of the second framework.

Optionally, the extension portion has a first end and a second end in an extension direction thereof, the first end is connected to the first skeleton or the second skeleton, the second end is a free end, and the groove is disposed at the first end.

Optionally, the extension portion is wedge-shaped, along the extension direction of the extension portion, the distance between the extension surface and the second surface gradually decreases, the shape of the accommodating groove is adapted to the shape of the extension portion, and the depth of the accommodating groove gradually decreases.

Optionally, the first skeleton with the second skeleton is semi-annular, have at least one first semi-annular groove on the first skeleton, have at least one second semi-annular groove on the second skeleton, first skeleton with the butt joint of second skeleton, first semi-annular groove with the second semi-annular groove can enclose the ring channel that forms to be used for placing the winding.

Optionally, the first semi-annular groove and the second semi-annular groove are both provided with two, the first framework comprises a first enclosing plate, a first partition plate, a second partition plate and a third partition plate, the first enclosing plate is arranged around the primary iron core, the first clamping piece is connected to the first enclosing plate, the first partition plate, the second partition plate and the third partition plate are connected to the first enclosing plate at intervals along the axial direction of the insulating framework, the first enclosing plate, the first partition plate and the second partition plate enclose to form one first semi-annular groove, and the first enclosing plate, the second partition plate and the third partition plate enclose to form the other first semi-annular groove;

the second framework comprises a second coaming, a fourth baffle, a fifth baffle and a sixth baffle, the second coaming surrounds the primary iron core, the second clamping piece is connected to the second coaming, the fourth baffle, the fifth baffle and the sixth baffle are connected to the second coaming along the axial interval of the insulating framework, the second coaming, the fourth baffle and the fifth baffle enclose to form a second semi-annular groove, and the second coaming, the fifth baffle and the sixth baffle enclose to form another second semi-annular groove.

In another aspect, an embodiment of the present utility model provides an electric machine, including a primary assembly and a secondary assembly, where the primary assembly is disposed inside the secondary assembly, the primary assembly includes a primary core, a winding, and an insulating skeleton as described above, where the primary core is provided with a plurality of slots along an axial direction thereof, the insulating skeleton is disposed in the slots, and the winding is disposed on the insulating skeleton.

In yet another aspect, an embodiment of the present utility model provides an electromagnetic suspension comprising an electric motor as described above.

In yet another aspect, an embodiment of the present utility model provides a vehicle comprising an electromagnetic suspension as described above.

According to the insulating framework, the first framework and the second framework are connected in a clamping mode through the clamping structure, the connecting strength is good, the insulating framework is not easy to loosen, the stability is good, the first framework and the second framework are fixed through the clamping structure after being mounted on the primary iron core, the insulating framework and the primary iron core are convenient to mount, the mounting efficiency of the insulating framework can be improved, and meanwhile later maintenance and replacement are convenient.

Drawings

FIG. 1 is a schematic view of an insulating framework according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a first skeleton according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a second skeleton provided in an embodiment of the present utility model;

FIG. 4 is a schematic view of a receiving slot and a protrusion provided in one embodiment of the present utility model;

FIG. 5 is a schematic view of an extension and groove provided by an embodiment of the present utility model;

FIG. 6 is a schematic illustration of a junction of a first skeleton and a second skeleton provided in accordance with an embodiment of the present utility model;

fig. 7 is a schematic diagram of a motor according to an embodiment of the present utility model.

Reference numerals in the specification are as follows:

1. a first skeleton; 11. a first coaming; 12. a first separator; 13. a second separator; 14. a third separator; 15. a first half annular groove; 2. a second skeleton; 21. a second coaming; 22. a fourth separator; 23. a fifth separator; 24. a sixth separator; 25. a second semi-annular groove;

3. a clamping structure; 31. a protrusion; 32. a groove; 33. a receiving groove; 331. a first surface; 34. an extension; 341. an extension surface; 342. a second surface;

4. a primary component; 41. a primary iron core; 42. a winding; 43. an insulating skeleton;

5. a secondary component; 51. a secondary core; 52. and magnetic steel.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 6, an insulating framework provided in an embodiment of the present utility model includes a first framework 1, a second framework 2, and a clamping structure 3, where the first framework 1 and the second framework 2 are abutted to form a closed structure along a circumferential direction of a primary core 41 of a motor, and the closed structure is used to be sleeved on the primary core 41.

The primary core 41 is provided with a plurality of slots along its axial direction, the first and second bobbins 1 and 2 are relatively placed in the slots, and connection of the first and second bobbins 1 and 2 is achieved through a snap structure, so as to form a closed insulating bobbin 43 sleeved on the primary core 41.

The opposite ends of the first framework 1 and the second framework 2 are connected through the clamping structure 3, namely, the first end of the first framework 1 is connected with the first end of the second framework 2 through one clamping structure 3, and the second end of the first framework 1 is connected with the second end of the second framework 2 through the other clamping structure 3.

According to the insulating framework provided by the embodiment of the utility model, the clamping connection of the first framework 1 and the second framework 2 is realized through the clamping structure 3, the insulating framework 43 is not easy to loosen and has good stability, the first framework 1 and the second framework 2 are fixed through the clamping structure 3 after being arranged on the primary iron core 41, the installation of the insulating framework 43 and the primary iron core 41 is facilitated, the installation efficiency of the insulating framework 43 can be improved, and the later maintenance and replacement are also facilitated.

In an embodiment, as shown in fig. 6, the clamping structure 3 includes a first clamping member and a second clamping member clamped with the first clamping member, where the first clamping member is disposed on the first framework 1, and the second clamping member is disposed on the second framework 2. One of the first clamping piece and the second clamping piece is a protrusion 31, the other is a groove 32 matched with the protrusion 31, the outer contour of the protrusion 31 is consistent with the inner contour of the groove 32, specifically, the first clamping piece is the protrusion 31, the second clamping piece is the groove 32, or the first clamping piece is the groove 32, and the second clamping piece is the protrusion 31. Thus, two of the first end of the first bobbin 1, the second end of the first bobbin 1, the first end of the second bobbin 2, and the second end of the second bobbin 2 are provided with the protrusions 31, and the other two are provided with the recesses 32. The two protrusions 31 are referred to as a first protrusion and a second protrusion, respectively, and the two grooves 32 are a first groove in which the first protrusion is disposed and a second groove in which the second protrusion is disposed, respectively.

When the connection between the first skeleton 1 and the second skeleton 2 is realized, the arrangement of the protrusions 31 and the grooves 32 may be such that the first clamping member at the first end of the first skeleton 1 is arranged as a first protrusion, the first clamping member at the second end of the first skeleton 1 is arranged as a second groove, and correspondingly, the second clamping member at the first end of the second skeleton 2 is arranged as a first groove, and the second clamping member at the second end of the second skeleton 2 is arranged as a second protrusion.

Or, the first clamping piece at the first end of the first framework 1 is set to be a first bulge, the first clamping piece at the second end of the first framework 1 is set to be a second bulge, and correspondingly, the second clamping piece at the first end of the second framework 2 is set to be a first groove, and the second clamping piece at the second end of the second framework 2 is set to be a second groove.

Or, the first clamping piece of the first end of the first framework 1 is set as a first groove, the first clamping piece of the second end of the first framework 1 is set as a second groove, and correspondingly, the second clamping piece of the first end of the second framework 2 is set as a first bulge, and the second clamping piece of the second end of the second framework 2 is set as a second bulge.

No matter how the setting positions of the protrusion 31 and the groove 32 are changed, the protrusion 31 is arranged in the groove 32, so that the clamping connection of the first framework 1 and the second framework 2 can be realized.

In an embodiment, as shown in fig. 4, 5 and 6, the protrusion 31 and the groove 32 extend along the axial direction of the insulating frame 43, since the insulating frame 43 is defined in the slot of the primary core 41, the movement direction of the first frame 1 and the second frame 2 is perpendicular to the central axis of the core of the primary assembly 4 during the insertion into the slot, and by arranging the protrusion 31 and the groove 32 to extend along the axial direction, the clamping connection of the first frame 1 and the second frame 2 can be realized during the process of forming the closed structure of the first frame 1 and the second frame 2, the installation is convenient, and the installation efficiency of the insulating frame 43 can be improved.

Preferably, the axial length of the protrusion 31 is identical to the axial length of the insulating frame 43, the axial length of the groove 32 is identical to the axial length of the insulating frame 43, the groove 32 can penetrate the first frame 1 in the axial direction when being arranged on the first frame 1, and the groove 32 can penetrate the second frame 2 in the axial direction when being arranged on the second frame 2.

In an embodiment, the protrusion 31 protrudes toward the central axis of the insulating frame 43, the groove 32 is recessed toward the central axis of the insulating frame 43 and the opening faces the protrusion 31, so that the connection between the protrusion 31 and the groove 32 is stable and is not easy to loosen.

In an embodiment, as shown in fig. 4, 5 and 6, the clamping structure 3 further includes an extension portion 34 and a receiving groove 33 adapted to the extension portion 34, the protrusion 31 is disposed in the receiving groove 33, the groove 32 is disposed on the extension portion 34, one of the extension portion 34 and the receiving groove 33 is disposed on the first skeleton 1, and the other is disposed on the second skeleton 2, that is, two of the first end of the first skeleton 1, the second end of the first skeleton 1, the first end of the second skeleton 2 and the second end of the second skeleton 2 are provided with the receiving groove 33, each of the receiving grooves 33 is provided with the protrusion 31, and the other two are provided with the extension portion 34, and each of the extension portions 34 is provided with the groove 32.

On the opposite side of the accommodation groove 33 and the extension portion 34, the accommodation groove 33 has a first surface 331, the protrusion 31 is disposed on the first surface 331, the protrusion 31 protrudes from the first surface 331 toward the central axis of the insulation skeleton 43, the extension portion 34 has an extension surface 341 and a second surface 342 attached to the first surface 331, the extension surface 341 is closer to the central axis of the insulation skeleton 43 than the second surface 342, the groove 32 is disposed on the second surface 342, the groove 32 is recessed from the second surface 342 toward the extension surface 341, the extension surface 341 is coplanar with the inner side surface of the first skeleton 1 and the inner side surface of the second skeleton 2, after the extension portion 34 is fitted in the accommodation groove 33, the extension portion 34 just fills the accommodation groove 33, so that magnetic powder can be prevented from entering the gap where the first skeleton and the second skeleton are abutted to affect the insulation performance of the insulation skeleton, and the insulation performance of the insulation skeleton can be improved by the butt joint of the extension portion 34 and the accommodation groove 33.

In one embodiment, the extension 34 has a first end and a second end in the extension direction, the first end of the extension 34 is connected to the first frame 1 or the second frame 2, the second end is a free end, and the groove 32 is disposed at the first end. At the opposite ends of the first frame 1 and the second frame 2, taking the extension portion 34 disposed on the first frame 1, and the accommodating groove 33 disposed on the second frame as an example, at this time, the first end of the extension portion is connected to the first frame 1, the groove is disposed at the first end of the extension portion 34 and located at the junction between the second surface 342 and the first frame 1, and correspondingly, the protrusion 31 is disposed on one side of the first surface 331 near the first frame 1, so that a larger groove depth can be set, so that the clamping effect between the groove and the protrusion is relatively firm.

In an embodiment, as shown in fig. 6, the extension portion 34 is wedge-shaped, along the extension direction of the extension portion 34, the distance between the extension surface 341 and the second surface 342 gradually decreases, the thickness of the extension portion 34 gradually decreases, preferably, the groove 32 is disposed on one side of the second surface 342, the other side of the second surface 342 is connected to the extension surface 341, and the second surface 342 is inclined with respect to the extension surface 341. The shape of holding groove 33 and the shape looks adaptation of extension 34, holding groove 33 are the wedge groove, and the degree of depth of holding groove 33 reduces gradually, and first surface 331 and second surface 342 are parallel to each other, and first surface 331 is the incline condition too, is provided with the wedge with extension 34, and in the joint in-process, protruding 31 can remove along second surface 342, and second surface 342 has the effect of motion direction to protruding 31 for protruding 31 gets into recess 32 smoothly. When the extension is wedge-shaped, the thickness of the first end of the extension 34 is maximum, the groove is arranged at the first end of the extension, the depth of the groove 32 can be increased, and accordingly, the height of the protrusion is increased, so that the groove 32 and the protrusion 31 are firmly clamped, and the first framework 1 and the second framework 2 are prevented from loosening.

In a preferred embodiment, as shown in fig. 2 and 3, the two ends of the first framework 1 are respectively provided with a first clamping piece, one of the two first clamping pieces is a first protrusion, the other one is a second groove, the two ends of the second framework 2 are respectively provided with a second clamping piece, one of the two second clamping pieces is a second protrusion, the other one is a first groove, the first protrusion is clamped in the first groove, and the second protrusion is clamped in the second groove, so that the structures of the first framework 1 and the second framework 2 are identical, the process manufacturing is facilitated, and only one set of die is required to be arranged during the production manufacturing, so that the production cost can be saved, and the production efficiency can be improved.

In an embodiment, as shown in fig. 2 and 3, the motor is a cylindrical linear motor, the first framework 1 and the second framework 2 are semi-annular, at least one first semi-annular groove 15 is formed on the first framework 1, at least one second semi-annular groove 25 is formed on the second framework 2, the first framework 1 and the second framework 2 are in butt joint, the first semi-annular groove 15 and the second semi-annular groove 25 can be enclosed to form an annular groove for placing the winding 42, in the linear motor of the outer rotor of the inner stator, the opening of the annular groove faces a direction away from the central axis of the insulating framework 43, in the linear motor of the outer stator of the inner stator, and the opening of the annular groove faces the central axis of the insulating framework 43.

In one embodiment, the first half annular groove 15 and the second half annular groove 25 are provided with two annular grooves, and the two annular grooves are formed in a surrounding manner. As shown in fig. 2, the first skeleton 1 includes a first shroud 11, a first separator 12, a second separator 13, and a third separator 14, the first shroud 11 is disposed around the primary core 41, first snap-fit members are connected to the first shroud 11, the first separator 12, the second separator 13, and the third separator 14 are connected to the first shroud 11 at intervals along an axial direction of the insulating skeleton 43, the first shroud 11, the first separator 12, and the second separator 13 enclose to form one first annular groove 15, the first shroud 11, the second separator 13, and the third separator 14 enclose to form another first annular groove 15, and the two first annular grooves 15 are spaced by the second separator 13.

As shown in fig. 3, the second skeleton 2 includes a second shroud 21, a fourth baffle 22, a fifth baffle 23 and a sixth baffle 24, the second shroud 21 is disposed around the primary core 41, the first shroud 11 and the second shroud 21 are both semi-annular, the first shroud 11 and the second shroud 21 are symmetrically disposed along a central axis of the primary core 41, the second clamping member is connected to the second shroud 21, the fourth baffle 22, the fifth baffle 23 and the sixth baffle 24 are connected to the second shroud 21 at intervals along an axial direction of the insulating skeleton 43, the second shroud 21, the fourth baffle 22 and the fifth baffle 23 enclose to form a second semi-annular groove 25, the second shroud 21, the fifth baffle 23 and the sixth baffle 24 enclose to form another second semi-annular groove 25, and the two second semi-annular grooves 25 are spaced by the fifth baffle 23.

The first framework 1 and the second framework 2 are made of harder insulating plastics, three-phase windings can be wound in the insulating frameworks 43, any one phase winding or two phases of windings in the three-phase windings can be placed in the insulating frameworks 43, and when only any one phase winding in the three-phase windings is placed in each insulating framework 43, the three-phase single-layer winding arrangement is adopted; when any two-phase windings of the three-phase windings are placed in each insulating skeleton 43, the three-phase double-layer winding arrangement is adopted. A three-phase double-layer winding arrangement is easier to optimize the torque ripple of the motor than a three-phase single-layer winding arrangement.

Preferably, in the axial direction of the insulating frame 43, the first frame 1 has an E-shaped cross-sectional shape, and the second frame 2 has an E-shaped cross-sectional shape.

On the other hand, as shown in fig. 7, an embodiment of the present utility model provides a motor including a primary assembly 4 and a secondary assembly 5, the motor is an inner stator and outer rotor motor, the primary assembly 4 is disposed inside the secondary assembly 5, the primary assembly 4 includes a primary core 41, a winding 42, and the insulation bobbin 43 of the above embodiment, the primary core 41 is provided with a plurality of slots along an axial direction thereof, the insulation bobbin 43 is disposed in the slots, and the winding 42 is disposed in the insulation bobbin 43.

The secondary assembly 5 includes a secondary core 51 and a magnetic steel 52, the magnetic steel 52 being disposed between an inner peripheral surface of the secondary core 51 and an outer peripheral surface of the primary core 41.

The assembly process of the motor comprises the following steps:

firstly, an insulating framework 43 mould is manufactured, insulating resin is blown into the mould by a blow molding process, a semi-annular first framework 1 and a semi-annular second framework 2 are manufactured, a protrusion 31 and a groove 32 are arranged at the joint of the first framework 1 and the second framework 2, the shape and the size of the protrusion 31 and the groove 32 are consistent, the cross section of the first framework 1 and the cross section of the second framework 2 are E-shaped, and two annular grooves are formed in the axial direction of the insulating framework 43.

Machining the cylindrical primary iron core 41, machining a plurality of tooth grooves along the axial direction on the outer circumferential surface of the primary iron core 41, taking a plurality of first frameworks 1 and second frameworks 2, fixing the primary iron core 41, embedding the first frameworks 1 and the second frameworks 2 into the tooth grooves through the clamping structure 3 to realize the fixation of an insulating framework 43, and finally winding copper wires on the insulating framework 43 to form a winding 42, thereby completing the manufacture of the primary assembly 4.

And (3) making a circular cylindrical secondary iron core 51 and a magnetic steel 52, wherein the diameter of the outer surface of the magnetic steel 52 is equal to the inner diameter of the secondary iron core 51, the diameter of the inner surface of the magnetic steel 52 is larger than the outer diameter of the primary iron core 41, fixing glue is coated on the outer diameter of the magnetic steel 52, and then the magnetic steel 52 is inserted into the secondary iron core 51, so that the secondary assembly 5 is manufactured. The primary assembly 4 is inserted inside the secondary assembly 5, i.e. the assembly of the primary assembly 4 and the secondary assembly 5 is completed.

In yet another aspect, an embodiment of the present utility model provides an electromagnetic suspension including the motor of the above embodiment.

In yet another aspect, an embodiment of the present utility model provides a vehicle including the electromagnetic suspension of the above embodiment.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The insulation framework is characterized by comprising a first framework, a second framework and a clamping structure, wherein the first framework and the second framework are in butt joint along the circumferential direction of a primary iron core of a motor to form a closed structure, and the closed structure is used for being sleeved on the primary iron core;

2. The insulating frame of claim 1, wherein the clamping structure comprises a first clamping member disposed on the first frame and a second clamping member disposed on the second frame and clamped with the first clamping member, one of the first clamping member and the second clamping member being a protrusion, and the other being a groove adapted to the protrusion.

3. The insulating frame of claim 2, wherein the protrusions protrude toward a central axis of the insulating frame, and the grooves are recessed toward the central axis of the insulating frame and open toward the protrusions.

4. The insulating frame of claim 3, wherein the snap-fit structure further comprises an extension and a receiving slot adapted to the extension, one of the extension and the receiving slot being disposed on the first frame and the other being disposed on the second frame;

5. The insulating frame of claim 4, wherein said extension has a first end and a second end in an extension direction thereof, said first end being connected to said first frame or said second frame, said second end being a free end, said recess being provided at said first end.

6. The insulating frame of claim 4, wherein said extension portion has a wedge shape, a distance between said extension surface and said second surface is gradually reduced along an extension direction of said extension portion, a shape of said receiving groove is adapted to a shape of said extension portion, and a depth of said receiving groove is gradually reduced.

7. The insulating frame of claim 2, wherein the first frame and the second frame are semi-annular, the first frame has at least one first semi-annular groove thereon, the second frame has at least one second semi-annular groove thereon, the first frame and the second frame are in butt joint, and the first semi-annular groove and the second semi-annular groove can enclose an annular groove for placing a winding.

8. The insulating skeleton of claim 7, wherein the first semi-annular groove and the second semi-annular groove are both provided with two, the first skeleton comprises a first enclosing plate, a first partition plate, a second partition plate and a third partition plate, the first enclosing plate is arranged around the primary iron core, the first clamping piece is connected to the first enclosing plate, the first partition plate, the second partition plate and the third partition plate are connected to the first enclosing plate at intervals along the axial direction of the insulating skeleton, the first enclosing plate, the first partition plate and the second partition plate enclose one first semi-annular groove, and the first enclosing plate, the second partition plate and the third partition plate enclose the other first semi-annular groove;

9. An electric machine characterized by comprising a primary assembly and a secondary assembly, wherein the primary assembly is arranged in the secondary assembly, the primary assembly comprises a primary iron core, a winding and the insulation framework of any one of claims 1-8, the primary iron core is axially provided with a plurality of tooth grooves, the insulation framework is arranged in the tooth grooves, and the winding is arranged on the insulation framework.

10. An electromagnetic suspension comprising the motor of claim 9.

11. A vehicle comprising the electromagnetic suspension of claim 10.