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Electrode and slot number matching of wheel motor and rule structure therefor

A wheel motor, the number of slots per pole, applied in the shape/pattern/structure of the motor, winding conductor, magnetic circuit shape/pattern/structure, etc. It can solve problems such as difficulty in arranging wires and ends, and achieve the effect of neat winding ends, convenient end arranging and high slot full rate.

Inactive Publication Date: 2004-11-17
SHANGHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve the low speed and large torque required by the direct drive of the motor, it is necessary to increase the number of poles of the rotor, but when the number of poles of the rotor increases, the number of slots of the stator will also increase proportionally, which will cause manufacturing difficulties such as processing and assembly
If you want to relatively reduce the number of slots under the requirement of increasing the number of poles, you need to increase the slot area to make up for it, but in this case, the cross-sectional area of ​​the coil side of the winding will also increase, causing difficulties in embedding wires and end finishing

Method used

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  • Electrode and slot number matching of wheel motor and rule structure therefor
  • Electrode and slot number matching of wheel motor and rule structure therefor
  • Electrode and slot number matching of wheel motor and rule structure therefor

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Embodiment Construction

[0009] Embodiments of the present invention are shown in the accompanying drawings. The present invention will be further described below in conjunction with accompanying drawing.

[0010] First of all, attached table 1 gives examples of some possible combinations of pole slot numbers in the present invention, where those marked with * are recommended pole slot number combinations.

[0011] Since the slot pitch in the present invention is fixed to 1, the two sides of a coil are respectively embedded in adjacent slots,

[0012] figure 1 The matching of the number of pole slots in the illustrated embodiment is 3-phase, 8-pole, 9-slot matching. As can be seen from the figure, the numbers 1, 2, 3, 4, 5, 6, 7, 8, and 9 in the figure are slot numbers, the solid line 11 indicates the starting side of the coil, the dotted line 1 2 indicates the ending side of the coil, and the top letter A, B, and C represent the phases to which the coils belong, the negative sign indicates that th...

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PUM

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Abstract

The invention is a kind of polar slot quantity mating and the line inserting structure for a kind of carriage wheel engine. The proportion of each phase and each slot is íœ 1 / 2-1 / 3, and sets the slot interval of the coil is 1, two coil sides are embedded in the same slot, one is used as the stop edge of the coil, another is the starting edge of another coil. The engine with low speed and large angular force, low torque pulse and high power density can be designed with the invention, in order to be used as the direct-driving engine for the electric automobile. The invention is convenient to be carried on with coil inserting and end arrangement; it can save the copper material and can reduce the length, volume and weight of the engine.

Description

technical field [0001] The invention belongs to motors, and relates to a pole slot number matching and an embedded wire structure of a wheel motor. Background technique [0002] In the prior art, the multi-phase stator winding of the motor usually has fewer poles of the rotor, more slots of the stator, and a larger pitch of the slots of the coil. Small torque machinery. Currently, the technology of electric vehicles using electric motors as the driving mechanism is developing rapidly, wherein the electric motors are used to directly drive the wheels of the vehicle. Because the running speed of the car changes greatly and the force of several wheels varies greatly, it is necessary for the motor to not only have high torque, flat appearance, light weight and high efficiency, but also require low speed, large torque and low torque pulsation. It can be seen that the existing high-speed and small-torque motors are not suitable for electric vehicles. In order to achieve the low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/12H02K3/12
CPCY02T10/641Y02T10/64
Inventor 黄苏融贡俊谢国栋张琪杨锟唐名钟
Owner SHANGHAI UNIV
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