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Stator winding structure of coreless permanent magnet motor and motor having the stator winding structure

A technology of stator winding and permanent magnet motor, which is applied to the shape/style/structure of the winding conductor, can solve the problems of low power density and poor motor space utilization, and achieves high magnetic field utilization, high power density and simple structure. Effect

Pending Publication Date: 2015-10-21
浙江鼎安机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a stator winding structure of an iron-core permanent magnet motor with high motor power density and better space utilization; solves the problems of low power density and poor space utilization of the motor in the prior art

Method used

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  • Stator winding structure of coreless permanent magnet motor and motor having the stator winding structure
  • Stator winding structure of coreless permanent magnet motor and motor having the stator winding structure
  • Stator winding structure of coreless permanent magnet motor and motor having the stator winding structure

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Effect test

Embodiment 1

[0026] Example 1: see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5, a stator winding structure of an ironless permanent magnet motor, including 12 closed toroidal coils 1, of course, in practical applications, the access end of the motor is usually three-phase, so the number of toroidal coils is not necessarily 12, as long as it is a multiple of 3. The toroidal coil 1 includes a pair of equal-length radial effective segments 11 and a pair of transverse effective segments 12 respectively arranged at the ends of the same side of the radial effective segments. An upper ineffective segment 13 is connected between the two transverse effective segments 12. Of course, The upper invalid section 13 and the two transverse effective sections 12 can be directly connected or indirectly connected. For example, a section of straight line section parallel to the radial effective section 11 is arranged at the end of the transverse effective section 12. The upper invalid section ...

Embodiment 2

[0033] Example 2: see Figure 6 , Figure 7 , Figure 8 , Figure 9 , the transverse effective section 12 on the ring coil 1 is arranged to extend inwardly of the radially effective section 11 . After the annular coils 1 are superimposed on each other, the transverse effective sections 12 have the same height and are evenly arranged and distributed radially inward along the circumference to form a torus.

[0034] See Figure 9 , the upper invalid section 13 includes a first upper invalid section 13a and a second upper invalid section 13b, the first upper invalid section 13a is located on the same cylindrical surface, and the first upper invalid section 13a is concave relative to the radial effective section 11 arc segment. The second upper invalid section 13b is on the same cylindrical surface as the first upper invalid section 13a, and the second upper invalid section 13b is a circular arc segment that is convex relative to the radially effective section 11, and the seco...

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Abstract

The invention relates to a stator winding structure of a coreless permanent magnet motor and a motor having the stator winding structure. The stator winding structure comprises a plurality of enclosed annular coils. Each annular coil comprises a pair of equilong radial effective segments and a pair of horizontal effective segments respectively arranged on the same side end parts of the radial effective segments. An upper ineffective segment is connected between the two horizontal effective segments. The other ends of the two radial effective segments are connected with a lower ineffective segment. The annular coils are staggered in a way to have the same included angle and further respectively laminated through the respective upper ineffective segment and the lower ineffective segment to form an upper overlapping part and a lower overlapping part. The radial effective segments of each annular coil are arranged in parallel and located in the same cylindrical surface. The horizontal effective segments on each annular coil have the same height and are arranged and distributed radially along a circumference to form an annular face. Compared with the stator windings of a radial coreless permanent magnet motor and a disc type coreless permanent magnet motor, the stator winding structure has an internal ineffective end part and an external ineffective part removed. A high magnetic field utilization rate is realized.

Description

technical field [0001] The invention relates to a motor, in particular to a stator winding structure of an ironless permanent magnet motor and a motor with the stator winding structure. Background technique [0002] Existing coreless permanent magnet motors mainly include radial motors and disc motors. However, whether it is a radial coreless permanent magnet motor or a disc coreless permanent magnet motor, the wiring structure of the motor winding wires cannot The maximum utilization of the magnetic field and the low power density are reflected in the fact that the characteristics of the motor are very soft, so it cannot be used as a motor, and usually can only be used as a wind turbine. At the same time, the space utilization rate of the motor is also poor. Contents of the invention [0003] The invention provides a stator winding structure of an iron-core permanent magnet motor with high motor power density and better space utilization, and solves the problems of low p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/28H02K3/04
Inventor 吕周安
Owner 浙江鼎安机械制造有限公司