Laminated type stator of brushless DC motor and wire unloading method thereof
A DC motor and stator technology, applied in the manufacture of motor generators, electric components, electrical components, etc., can solve the problems of loose windings at the end of the stator, large dimensions, and difficult to get off the wire, etc. Small size and improved manufacturability
Pending Publication Date: 2018-11-23
沈阳兴华航空电器有限责任公司
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Problems solved by technology
Since the embedded stator winding has a blocking effect on the unfinished wire slot, it is difficult to remove the last embedded C-phase winding, and the actual slot fullness rate of the motor stator is generally low
The windings of each phase are arranged crosswise, the windings at the end of the stator are loose, and the overall size is large, which increases the difficulty of shaping the end
Method used
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[0020] refer to figure 1 , a brushless DC motor laminated stator, the brushless DC motor stator is a three-phase winding structure, including the stator core 100, stator slot 100-1, slot insulation 100-2, slot wedge 200, A phase winding, B phase winding, phase C winding; the stator core 100 is provided with 12 stator slots 100-1, starting from the stator slot on the right side of the positioning gap 100-3 on the outer circumference of the stator core 1, all the stator slots are marked counterclockwise as 1 to 12, the A-phase winding has 4 coils A 300, the B-phase winding has 4 coils B 400, and the C-phase winding has 4 coils C 500. The pitches of coil A 300, coil B 400 and coil C 500 are respectively 12 / number of poles, coil A300 is installed in stator slot 1 and stator slot 4, coil B400 is installed in stator slot 2 and stator slot 5, and coil B400 is installed in stator slot 3 and stator slot 6 C500, the coil A300 is installed in the No. 4 stator slot and the No. 7 stator s...
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The invention discloses a laminated type stator of a brushless DC motor and a wire unloading method thereof, which solves the technical problems in the prior art that the actual slot full rate of thestator of the motor is generally low, the winding at the end of the stator is loose, the external dimension is large, and the shaping difficulty of the end is increased. The laminated stator of the invention comprises a stator iron core, a slot insulation, a slot wedge, an A-phase winding, a B-phase winding and a C-phase winding; the stator core is provided with n stator slots, and the coils A, Band C are laminated and installed in the stator slots, and two coils are embedded in each stator slot. The invention additionally provides a wire unloading method of the laminated stator. The ends ofthe laminated stator windings of the invention are arranged in an orderly manner, no additional shaping process is required, and the end size of the laminated stator winding is small. By embedding stator windings slot by slot, each winding coil is tightly fitted with the previous slot coil, thereby reducing the shielding to the subsequent stator slot, improving the stator embedding technicality, and improving the stator slot fullness ratio of the motor.
Description
technical field [0001] The invention relates to the technical field of brushless direct current motor stators, and in particular provides a laminated stator and an off-line method thereof. Background technique [0002] Brushless DC motors have many advantages such as small size, high speed, high efficiency, and easy control, and are widely used in aerospace, rail transit, electric locomotives, precision machine tools and other fields. The stator of the brushless DC motor in the prior art generally adopts a three-phase winding structure. When the stator is offline, it is generally embedded in the stator core in the order of A, B, and C phases, that is, after the A phase is embedded, the B phase is completed. Embedded. Since the embedded stator winding has a blocking effect on the unfinished wire slot, it is difficult to remove the last embedded C-phase winding, and the actual slot fullness rate of the motor stator is generally low. The windings of each phase are arranged cr...
Claims
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IPC IPC(8): H02K1/16H02K3/12H02K3/28H02K3/487H02K15/085
CPCH02K1/165H02K3/12H02K3/28H02K3/487H02K15/085
Inventor 乔春雨范正鑫周宇楠
Owner 沈阳兴华航空电器有限责任公司