Vernier motor or generator with centralized winding or magnetic slot wedge or semi-closed slot

Abstract

A vernier motor or generator is widely concerned due to low copper consumption, the end parts of all phases of windings of a conventional distributed winding are overlapped, the process is complicated, and the required investment of coil inserting equipment is large, the vernier motor or generator with the centralized winding comprises a stator and a rotor (mover) with the centralized winding, the number P of pole pairs of the stator winding is equal to Z1-Z2, Z1 is the number of pole pairs of the stator, and Z2 is the number of pole pairs of the rotor. And the rotor Z2 is the number of pole pairs of the rotor. The motor is mainly characterized in that each winding on the stator is wound in two adjacent winding grooves. In addition, due to the fact that the magnetic density fluctuation range of a notch winding area caused by rotor magnetic steel is too large, the winding generates large alternating current copper loss, the winding even alternating current resistance is far larger than direct current resistance, and a vernier motor or a generator with a magnetic slot wedge or a stator iron core semi-closed slot at the winding notch position is specially developed. After the magnetic slot wedge is used, harmonic waves can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of vernier motors or generators. Background Art

[0002] Vernier motors or generators have received widespread attention due to their relatively high efficiency. Conventional distributed windings have overlapping ends of each phase winding, complex processes, and require large investments in wire embedding equipment. Therefore, a centralized winding vernier motor or generator has been developed. The centralized winding has much simpler interphase insulation processing than the distributed winding and has much better reliability.

[0003] Since the rotor magnetic steel (6) causes the magnetic density fluctuation range of the slot winding phase A (1), winding phase B (2), and winding phase C (3) to be too large, the windings (1, 2, 3) generate relatively large AC copper loss, and even the AC resistance of phase A (1), winding phase B (2), and winding phase C (3) is much greater than the DC resistance. A vernier motor or generator with a magnetic slot wedge (8) at the winding slot position is specially developed. After the use of this magnetic slot wedge (8), harmonics can be reduced.

[0004] Since the rotor magnetic steel (6) causes a large fluctuation range of magnetic flux density in the slot winding area, the winding A phase (1), the winding B phase (2), and the winding C phase (3) generate relatively large AC copper loss, and the AC resistance of the winding A phase (1), the winding B phase (2), and the winding C phase (3) is even much greater than the DC resistance. Therefore, a vernier meter motor or generator with a semi-closed stator core is specially developed. This structure can also position the stator magnetic steel (7) and allow the winding A phase (1), the winding B phase (2), and the winding C phase (3) to be better wound in the slot of the stator core (4). Summary of the invention

[0005] A concentrated winding vernier motor or generator comprises a stator (9) and a rotor (10), wherein the stator comprises a winding A phase (1), a winding B phase (2), a winding C phase (3), a stator iron core (4), a magnetic slot wedge, and a stator magnetic steel (7); the rotor (10) comprises a rotor iron core (5), a rotor magnetic steel (6), and the number of stator winding pole pairs P=|Z1-Z2|, where Z1 is the number of stator pole pairs and Z2 is the number of rotor pole pairs. The main feature of the motor is that each winding on the stator is wound in two adjacent winding slots.

[0006] The vernier motor or generator according to claim 1, characterized in that two adjacent windings (1, 2, 3) with different phases share one slot.

[0007] The vernier motor or generator according to claim 1, characterized in that the number of windings (1, 2, 3) per phase is the number of stator winding pole pairs or the number of stator winding pole pairs.

[0008] The vernier motor or generator according to claim 1 is characterized in that the spatial difference between two adjacent phases is 360 degrees divided by (number of phases*number of windings per phase).

[0009] The vernier motor or generator according to claim 1 is characterized in that it can be a radial flux motor, an axial flux motor, a hybrid flux motor, or a linear motor.

[0010] A vernier motor or generator with a magnetically conductive slot wedge (8) for a slot, the main feature of which is that the magnetically conductive slot wedge (8) is used for a stator slot with a winding.

[0011] The vernier motor or generator according to claim 6 is characterized in that it can be a radial flux motor, an axial flux motor, a hybrid flux motor, or a linear motor.

[0012] A vernier motor or generator with a stator core (4) having a closed or semi-closed slot, the main feature of which is that the stator slot is in a semi-closed or closed state.

[0013] The vernier motor or generator according to claim 8 is characterized in that it can be a radial flux motor, an axial flux motor, a hybrid flux motor, or a linear motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

Claims

1. A concentrated winding vernier motor or generator, comprising a stator (9) and a rotor (10), wherein each winding A phase (1), winding B phase (2), and winding C phase (3) on the stator (9) is wound in two adjacent winding slots.

2. The vernier motor or generator according to claim 1, characterized in that: Two adjacent windings (1, 2, 3) with different phases share one slot.

3. The vernier motor or generator according to claim 1, characterized in that: The number of windings per phase (1, 2, 3) is the number of stator winding pole pairs or the number of stator winding pole pairs.

4. The vernier motor or generator according to claim 1, characterized in that: The spatial difference between two adjacent phases is 360 degrees divided by (number of phases * number of windings per phase).

5. The vernier motor or generator according to claim 1, characterized in that: It can be a radial flux motor, an axial flux motor, a hybrid flux motor, or a linear motor.

6. A vernier motor or generator with a magnetically conductive slot wedge (8) for a slot, the main feature of which is that the magnetically conductive slot wedge is used for the stator slot with a winding.

7. The vernier motor or generator according to claim 6, characterized in that: It can be a radial flux motor, an axial flux motor, a hybrid flux motor, or a linear motor.

8. A vernier motor or generator with a stator core (4) having a closed or semi-closed slot, wherein the stator core (4) has a main feature of being semi-closed or closed.

9. The vernier motor or generator according to claim 8, characterized in that: It can be a radial flux motor, an axial flux motor, a hybrid flux motor, or a linear motor.

Images