CN217388339U

CN217388339U - Axial switch reluctance motor rotor and axial switch reluctance motor thereof

Info

Publication number: CN217388339U
Application number: CN202123456886.5U
Authority: CN
Inventors: 岳帅
Original assignee: Jiaxing Yicheng Electromechanical Technology Co ltd
Current assignee: Jiaxing Yicheng Electromechanical Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-09-06
Anticipated expiration: 2031-12-31

Abstract

The invention provides an axial switch reluctance motor rotor and an axial switch reluctance motor thereof, belonging to the field of motors. Including rotor bearing structure, the last rotor conductive component of a plurality of groups that is provided with of rotor bearing structure, rotor conductive component include that at least one conductive structure's conductive structure sends out rotor bearing structure to in the rotor outside to rotor bearing structure bending type becomes utmost point looks, conductive structure end to end forms the closed loop, is provided with a plurality of iron cores between the conductive structure, and the iron core uses rotor bearing structure axis as central equipartition. The mode of utilizing flat electric conductor to press from both sides and establishing the iron core has greatly reduced the quality of iron core, simultaneously because flat electric conductor erects to put, but greatly increased utmost point looks quantity.

Description

Axial switch reluctance motor rotor and axial switch reluctance motor thereof

Technical Field

The invention belongs to the technical field of motors, relates to a reluctance motor, and particularly relates to an axial switch reluctance motor rotor.

Background

The switched reluctance motor is a novel speed regulating motor, and is a latest generation speed regulating system of a relay variable frequency speed regulating system and a brushless direct current motor speed regulating system.

The SRM used by the speed regulating system of the switched reluctance motor is a component for realizing electromechanical energy conversion in the SRD, and is also a main mark of the SRD which is different from other motor driving systems. The SRM is a double-pole phase variable reluctance motor, and the pole phases of a stator and a rotor are formed by laminating common silicon steel sheets. The rotor has neither winding nor permanent magnet, the stator pole is wound with concentrated winding, two diametrically opposite windings are connected together, it is called "one phase", the SR motor can be designed into various different phase number structures, and the number of poles of stator and rotor can be matched variously. The four-phase 8/6 and six-phase 12/8 structures are widely used nowadays.

The existing switched reluctance motor has the following disadvantages: the rotor core is large and only a few pole phases can be set due to space limitations.

Disclosure of Invention

The invention aims to solve the problems and provides a switched reluctance motor rotor; the technical problems in the prior art are solved.

In order to achieve the purpose, the invention adopts the following technical scheme: this axial switched reluctance motor rotor, including rotor bearing structure, rotor bearing structure on be provided with a plurality of rotor conductive component of group, rotor conductive component include at least one electrically conductive structure, electrically conductive structure send out rotor bearing structure to in the rotor outside to rotor bearing structure bending type become extremely looks, electrically conductive structure end to end form the closed loop, be provided with a plurality of iron cores between the electrically conductive structure, the iron core use rotor bearing structure axis as center equipartition.

In foretell axial switch reluctance motor rotor, the conducting structure among the same rotor conducting assembly is two at least, conducting structure send out rotor bearing structure, form the rotor bearing structure after the rotor outside and buckle, conducting structure terminal and next conducting structure head end link to each other, two conducting structures form closed loop.

In the axial switched reluctance motor rotor, the conductive structures are multiple, the conductive structures are arranged on the rotor supporting structure, the conductive structures are bent towards the rotor supporting structure after forming pole phases on the outer side of the rotor, the tail ends of the conductive structures are connected with the head end of the next conductive structure, and the conductive structures are connected in series to form a closed loop.

In the above axial switched reluctance motor rotor, the conductive structure includes at least one first conductive strip and at least one second conductive strip, the first conductive strip and the second conductive strip are flat strips, one end of the first conductive strip is connected to the rotor supporting structure, the other end is located outside the rotor, the second conductive strip is the same as or a mirror image of the first conductive strip, and the first conductive strip and the second conductive strip form a polar phase or an integrated polar phase outside the rotor through a conductive connecting piece or a welded connection.

In the above axial switched reluctance motor rotor, a distribution plane is formed between the first conductive strip and the second conductive strip, the first conductive strip is completely located above the distribution plane, and the second conductive strip is completely located below the distribution plane.

In the axial switched reluctance motor rotor, the angle formed by the head end and the tail end of the first conductive bar and the central connecting line of the rotor supporting structure is one-half of the number of conductive structures which are twice as large as those in the same rotor winding assembly with the angle of 360 degrees.

In the rotor of the axial switched reluctance motor, the first conductive bar and the second conductive bar are respectively provided with an inner connecting part and an outer connecting part, the outer connecting part of the first conductive bar is connected with the outer connecting part of the second conductive bar through a conductive connecting piece, and the inner connecting part of the second conductive bar is connected with the inner connecting part of the next first conductive bar through a conductive connecting piece;

the first conducting strip and the second conducting strip are also provided with at least one steering part;

first busbar and second busbar still be provided with the iron core installation department, be provided with the iron core between the adjacent iron core installation department.

In the axial switch reluctance motor rotor, an insulating structure is arranged outside the first conductive bar and the second conductive bar, or the rotor conductive assembly and the iron core are packaged and positioned by insulating plastic materials.

In the axial switched reluctance motor rotor, conductive structures are uniformly distributed about a rotor supporting structure, each conductive structure comprises a first conductive bar and a second conductive bar, and the conductive structures belonging to a group of rotor conductive assemblies are connected end to form a closed loop;

or the conducting structure comprises a plurality of first conducting strips and second conducting strips with the same number as the first conducting strips, the first conducting strips and the second conducting strips which belong to a group of conducting structures are connected in parallel, and the conducting structures which belong to a group of rotor conducting components are connected end to form a closed loop.

The axial switch reluctance motor adopting the axial switch reluctance motor rotor comprises a stator and the axial switch reluctance motor rotor, wherein the stator is provided with a plurality of electrifying windings which are independently controlled, and a motor shell is arranged outside the stator.

Compared with the prior art, the invention has the advantages that:

1. the mode of utilizing flat electric conductor to press from both sides and establishing the iron core has greatly reduced the quality of iron core, simultaneously because flat electric conductor erects to put, but greatly increased utmost point looks quantity.

2. The flat electric conductor cuts the magnetic induction line to form a magnetic field, so that the iron core obtains a magnetic pole, the magnetic resistance on the magnetic circuit is reduced, the magnetic flux is restrained better, and the rotor has larger torque.

3. The flat conductor has a large heat dissipation surface, a skin effect, a proximity effect, an edge effect and eddy current loss.

Drawings

FIG. 1 is a schematic view of the structure provided by the present invention;

FIG. 2 is a schematic view of the structure of the present invention after the removal of the iron core;

FIG. 3 is a schematic diagram of a conductive structure provided by the present invention;

fig. 4 is a cross-sectional view of a motor provided by the present invention.

In the figure: rotor supporting structure 1, rotor conducting component 2, conducting structure 3, pole phase 4, iron core 5, first conducting strip 6, second conducting strip 7, conducting connecting piece 8, inner connecting part 9, steering part 10, iron core mounting part 11, stator 12 and winding 13.

Detailed Description

As shown in fig. 1, the axial switched reluctance motor rotor comprises a rotor supporting structure 1, wherein a plurality of rotor conductive assemblies 2 are arranged on the rotor supporting structure 1, each rotor conductive assembly 2 comprises at least one conductive structure 3, each conductive structure 3 is arranged on the rotor supporting structure 1, and is bent towards the rotor supporting structure 1 to form a polar phase 4, the conductive structures 3 are connected end to form a closed loop, a plurality of iron cores 5 are arranged between the conductive structures 3, and the iron cores 5 are uniformly distributed by taking the axis of the rotor supporting structure 1 as the center.

As the stator field rotates, the field lines drive the rotor to rotate in order to achieve the shortest magnetic path. The closed-loop conductive structure generates current when cutting the magnetic induction lines and simultaneously generates a magnetic field corresponding to the current direction, and the magnetic field is attached to the iron core, so that the iron core has magnetic pole magnetism, the magnetic field is effectively restrained, the magnetic resistance of a magnetic circuit on the iron core is reduced, and the rotor obtains larger magnetic field force to obtain larger torque.

Preferably, the number of the conductive structures 3 in the same rotor conductive component 2 is 2 in this embodiment, which is equivalent to that the 60 conductive components 2 in this embodiment have 30 pole phases, the conductive structure 3 is sent to the rotor supporting structure 1, and is bent towards the rotor supporting structure 1 to form the pole phase 4, the tail end of the conductive structure 3 is connected with the head end of the next conductive structure 3, and the two conductive structures 3 form a closed loop. One skilled in the art can also design the number of conductive structures in one rotor lead assembly 2 to be the total number of conductive structures divided by the number of pole phases, depending on the number of pole phases desired.

Further, the conductive structure 3 is arranged on the rotor supporting structure 1, a pole phase 4 is formed on the outer side of the rotor and then bent towards the rotor supporting structure 1, the tail end of the conductive structure 3 is connected with the head end of the next conductive structure 3, and the conductive structures 3 are connected in series to form a closed loop.

Preferably, the conducting structure 3 comprises at least one first conducting strip 6 and at least one second conducting strip 7, said first conducting strip 6 and said second conducting strip 7 are in the form of flat strips, said first conducting strip 6 has one end connected to the rotor supporting structure 1 and the other end located outside the rotor, said second conducting strip 7 has the same or a mirror image shape as the first conducting strip 6, the first conducting strip 6 and the second conducting strip 7 are connected outside the rotor by means of a conducting connection element 8 or by welding to form the pole phase 4 or are integrally formed to form the pole phase.

The flat conductor has a large heat dissipation surface, a skin effect, a proximity effect, an edge effect and eddy current loss.

Between the first conductive strip 6 and the second conductive strip 7 is a distribution plane, said first conductive strip 6 being completely above the distribution plane, said second conductive strip 7 being completely below the distribution plane.

The leading and trailing ends of the first conducting strip 6 make an angle with the centre line of the rotor supporting structure 1 which is a fraction of twice the number of conducting structures in the same rotor winding assembly of 360.

The first conductive strip 6 and the second conductive strip 7 are respectively provided with an inner connecting part 9 and an outer connecting part, the outer connecting part of the first conductive strip 6 is connected with the outer connecting part of the second conductive strip 7 through a conductive connecting piece 8, and the inner connecting part 9 of the second conductive strip 7 is connected with the inner connecting part 9 of the next first conductive strip 6 through the conductive connecting piece 8;

the first conducting strip 6 and the second conducting strip 7 are also provided with at least one steering part 10;

first conducting strip 6 and second conducting strip 7 still be provided with iron core installation department 11, be provided with iron core 5 between the adjacent iron core installation department 11. The flat electric conductor cuts the magnetic induction line to form a magnetic field, so that the iron core obtains a magnetic pole, the magnetic resistance on the magnetic circuit is reduced, the magnetic flux is restrained better, and the rotor has larger torque.

The first conducting strip 6 and the second conducting strip 7 are externally provided with insulating structures or the rotor conducting assembly 2 and the core 5 are positioned encapsulated by insulating plastic materials.

The conductive structures 3 are uniformly distributed about the rotor supporting structure 1, the conductive structures 3 comprise a first conductive strip 6 and a second conductive strip 7, and the conductive structures 3 belonging to a group of rotor conductive assemblies 2 are connected end to form a closed loop;

or the conductive structure 3 comprises a plurality of first conductive strips 6 and a number of second conductive strips 7 equal to the number of the first conductive strips 6, the first conductive strips 6 and the second conductive strips belonging to a group of conductive structures 3 are connected in parallel, and the conductive structures 3 belonging to a group of rotor conductive assemblies 2 are connected end to form a closed loop.

The axial switch reluctance motor adopting the axial switch reluctance motor rotor comprises a stator and the axial switch reluctance motor rotor, wherein the stator 12 is provided with a plurality of electrifying windings 13, the electrifying windings 13 are independently controlled, and a motor shell is arranged outside the stator 12.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms rotor support structure 1, rotor conducting assembly 2, conducting structure 3, pole phase 4, core 5, first conducting strip 6, second conducting strip 7, conducting connection 8, inner connection 9, turning section 10, core mounting section 11, stator 12, winding 13, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides an axial switch reluctance motor rotor, includes rotor bearing structure (1), its characterized in that, rotor bearing structure (1) on be provided with a plurality of rotor conductive component (2) of group, rotor conductive component (2) include at least one conductive structure (3), conductive structure (3) send out rotor bearing structure (1) to in the rotor outside to rotor bearing structure (1) bending type become utmost point looks (4), conductive structure (3) end to end form the closed loop, be provided with a plurality of iron cores (5) between conductive structure (3), iron core (5) use rotor bearing structure (1) axis as the center equipartition.

2. The rotor of an axial switched reluctance motor according to claim 1, wherein the number of the conductive structures (3) in the same rotor conductive assembly (2) is at least one, the conductive structures (3) are arranged on the rotor support structure (1) and form a pole phase (4) on the outer side of the rotor and then bend towards the rotor support structure (1), the tail end of the conductive structure (3) is connected with the head end of the next conductive structure (3), and two conductive structures (3) form a closed loop.

3. The rotor of an axial switched reluctance motor according to claim 1, wherein the number of the conductive structures (3) is multiple, the conductive structures (3) are formed on the rotor support structure (1), a pole phase (4) is formed on the outer side of the rotor and then bent towards the rotor support structure (1), the tail end of the conductive structure (3) is connected with the head end of the next conductive structure (3), and the conductive structures (3) are connected in series to form a closed loop.

4. The rotor of an axial switched reluctance motor according to claim 1, wherein said conducting structure (3) comprises at least one first conducting strip (6) and at least one second conducting strip (7), said first conducting strip (6) and said second conducting strip (7) are in the form of flat strips, said first conducting strip (6) has one end connected to the rotor supporting structure (1) and the other end located outside the rotor, said second conducting strip (7) has the same or a mirror image of the shape of the first conducting strip (6), and the first conducting strip (6) and the second conducting strip (7) are connected by a conducting connector (8) or welded to form a pole phase (4) or integrally formed to form a pole phase outside the rotor.

5. The rotor according to claim 4, wherein a distribution plane is defined between the first conducting strip (6) and the second conducting strip (7), the first conducting strip (6) being located completely above the distribution plane, and the second conducting strip (7) being located completely below the distribution plane.

6. Rotor according to claim 4, characterised in that the first conducting strips (6) form an angle with the centre line of the rotor support structure (1) of a factor of two times the number of conducting structures in the same rotor winding assembly of 360 °.

7. The rotor of an axial switched reluctance motor according to claim 6, wherein the first conductive strip (6) and the second conductive strip (7) are respectively provided with an inner connecting part (9) and an outer connecting part, the outer connecting part of the first conductive strip (6) is connected with the outer connecting part of the second conductive strip (7) through a conductive connecting piece (8), and the inner connecting part (9) of the second conductive strip (7) is connected with the inner connecting part (9) of the next first conductive strip (6) through a conductive connecting piece (8);

the first conductive strip (6) and the second conductive strip (7) are also provided with at least one steering part (10);

the first conductive strips (6) and the second conductive strips (7) are further provided with iron core installation parts (11), and iron cores (5) are arranged between the adjacent iron core installation parts (11).

8. The rotor according to claim 4, characterized in that the first conducting bar (6) and the second conducting bar (7) are externally provided with an insulating structure, or the rotor conducting assembly (2) and the iron core (5) are positioned by being encapsulated by an insulating plastic material.

9. The rotor according to claim 4, characterized in that said conducting structures (3) are uniformly distributed with respect to the rotor supporting structure (1), said conducting structures (3) comprising a first conducting strip (6) and a second conducting strip (7) connected end to end with the conducting structures (3) belonging to a set of rotor conducting elements (2) to form a closed loop;

or the conducting structure (3) comprises a plurality of first conducting strips (6) and second conducting strips (7) with the same number as the first conducting strips (6), the first conducting strips (6) and the second conducting strips which belong to a group of conducting structures (3) are connected in parallel, and the conducting structures (3) which belong to a group of rotor conducting assemblies (2) are connected end to form a closed loop.

10. An axial switched reluctance motor using the rotor of the axial switched reluctance motor according to any one of claims 1 to 9, comprising a stator and the rotor of the axial switched reluctance motor, wherein the stator (12) is provided with a plurality of energized windings (13), the energized windings (13) are independently controlled, and a motor housing is arranged outside the stator (12).