CN-122001131-A - Flat wire motor stator winding and motor

CN122001131ACN 122001131 ACN122001131 ACN 122001131ACN-122001131-A

Abstract

The invention discloses a flat wire motor stator winding and a motor, wherein the stator winding comprises a first coil group and a second coil group, the first coil group and the second coil group have the same structure, the first coil group and the second coil group are combined to form a new stator winding, the first coil group and the second coil group are mutually independent and are not connected, the first coil group and the second coil group are arranged in a mixed mode in a groove, the electric phase angles differ by 0 degree, conductors of the two coils in the groove are arranged circumferentially according to UUWWVV in a mixed mode, U1, V1 and W1 are three phases of the first coil group, and U2, V2 and W2 are three phases of the second coil group. According to the invention, the coil group I and the coil group II are combined, the wire outlet positions of the coil group I and the coil group II are close, the phase difference is 0 degree, and the two groups can be controlled independently or in parallel.

Inventors

LIU YUE
ZHAI LIPENG
LI JIABIN

Assignees

陕西法士特松正电驱系统股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260202

Claims (4)

1. A flat wire motor stator winding is characterized by comprising a first coil group and a second coil group, wherein the first coil group and the second coil group have the same structure, the first coil group and the second coil group are combined to form a new stator winding, the first coil group and the second coil group are independent of each other and are not connected, the first coil group and the second coil group are arranged in a mixed mode in a groove, the electric phase angles are different by 0 degree, conductors of the two coils in the groove are arranged circumferentially according to UUWWVV in a mixed mode, U1, V1 and W1 are three phases of the first coil group, and U2, V2 and W2 are three phases of the second coil group.
2. A flat wire motor stator winding according to claim 1 wherein the first coil assembly comprises crown ends and weld ends, and U1a, U1b, U1c, U1d of the first coil assembly are connected in parallel as the U phase of the first coil assembly.
3. A flat wire motor stator winding according to claim 1, wherein the second coil assembly comprises a crown end and a welding end, and U2a, U2b, U2c and U2d of the second coil assembly are connected in parallel to form a U phase of the second winding.
4. An electric machine comprising a flat wire electric machine stator winding as claimed in any one of claims 1 to 3.

Description

Flat wire motor stator winding and motor Technical Field The invention belongs to the technical field of flat wire motors, and particularly relates to a stator winding of a flat wire motor and the motor. Background The electric drive system is integrated, the motor is flattened, the main technical route for realizing light weight and miniaturization, the flat wire winding motor adopts a flat copper wire with larger sectional area in the stator winding, the winding is firstly made into a shape similar to a hairpin, the winding penetrates into a stator slot, and the end part of the hairpin is welded at the other end. However, the conventional flat wire motor has a problem of a plurality of types of hairpins, so a stator winding of the flat wire motor and the motor are provided to solve the problem. Disclosure of Invention The invention mainly aims to provide a stator winding of a flat wire motor and the motor, which solve the problem of more card issuing types of the existing flat wire motor. In order to achieve the purpose, the technical scheme adopted by the invention is that the flat wire motor stator winding comprises a first coil group and a second coil group, the first coil group and the second coil group are identical in structure, the first coil group and the second coil group are combined to form a new stator winding, the first coil group and the second coil group are independent of each other and are not connected, the first coil group and the second coil group are arranged in a mixed mode in a groove, the electric phase angles differ by 0 degree, conductors of the two coils in the groove are arranged in a mixed circumferential mode according to UUWWVV, U1, V1 and W1 are three phases of the first coil group, and U2, V2 and W2 are three phases of the second coil group. Further, the first coil set comprises a crown end and a welding end, and U1a, U1b, U1c and U1d of the first coil set are connected in parallel to form a U phase of the first winding. Further, the second coil group comprises a crown end and a welding end, and U2a, U2b, U2c and U2d of the second coil group are connected in parallel to form a U phase of the second winding. Further, the scheme also provides a motor which comprises the flat wire motor stator winding. Compared with the prior art, the invention has the beneficial effects that the coil group I and the coil group II are combined into the novel stator winding, the coil group I and the coil group II are mutually independent and are not connected, the conductors of the coil group I and the coil group II share the grooves, are arranged in a mixed mode, the electric phase angles are different by 0 degree, the conductors of the two coils in the grooves are arranged circumferentially according to UUWWVV, U1, V1 and W1 are three phases of the coil group I, and U2, V2 and W2 are three phases of the coil group II. According to the invention, the coil group I and the coil group II are combined, the wire outlet positions of the coil group I and the coil group II are close, the phase difference is 0 degree, and the two groups can be controlled independently or in parallel. Drawings FIG. 1 is a schematic diagram of a first coil assembly according to the present invention; FIG. 2 is a schematic diagram of a second coil assembly according to the present invention; fig. 3 is a schematic structural diagram of the first coil assembly and the second coil assembly of the present invention after being combined. Detailed Description The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Referring to fig. 1,2 and 3, the invention discloses a flat wire motor stator winding, which comprises a first coil group and a second coil group, wherein the first coil group and the second coil group are combined to form a new stator winding, the first coil group and the second coil group have the same structure, referring to fig. 1, a solid line in the first coil group is a crown end, a dotted line is a welding end, U1a, U1b, U1c and U1d are connected in parallel to form a U phase of the first coil group, referring to fig. 2, a solid line in the second coil group is a crown end, a dotted line is a welding end, U2a, U2b, U2c and U2d are connected in parallel to form a U phase of the second coil group, referring to fig. 3, a stator winding structure schematic diagram after the first coil group and the second coil group are combined, U1a, U1b, U1c and U1d are connected in parallel to form a U phase of the first coil group, and U2a U2b, U2c and U2d are connected in parallel to form a U phase of th