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Three-phase double row concentrated winding permanent magnet motor

A technology of concentrated windings and permanent magnet motors, applied to synchronous motors with stationary armatures and rotating magnets, the shape/style/structure of winding conductors, synchronous machine parts, etc., can solve problems such as limiting the rated output power of motors , to achieve the effect of high rated output power, expanding application range and wide application range

Active Publication Date: 2019-03-08
SHANGHAI ZHONGCHEN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rated output power of the motor is determined by the temperature rise limit of the motor, and the internal loss value of the motor determines the temperature rise of the motor, which limits the rated output power of the motor

Method used

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  • Three-phase double row concentrated winding permanent magnet motor
  • Three-phase double row concentrated winding permanent magnet motor
  • Three-phase double row concentrated winding permanent magnet motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A three-phase double-row concentrated winding permanent magnet motor, including a motor shaft 1 as a motor rotor yoke, a radiation ring 2, a motor stator core 3 and a motor armature winding 4, such as Figure 1 to Figure 4 As shown, the specific structure is:

[0046] The radiation ring 2 is composed of 10 radiation magnetic tiles 21 sequentially. The magnetic poles of the two adjacent radiation magnetic tiles 21 at the same end are different. The central angle of each radiation magnetic tile 21 is 36°. The radiation ring 2 It is a ring type, the radiation ring 2 is hooped outside the motor shaft 1, the motor stator core 3 is set outside the radiation ring 2, there is a gap between the motor stator core 3 and the radiation ring 2, the motor shaft 1, the radiation ring 2 and the motor stator The central axes of the three cores 3 coincide, and the inner side wall of the motor stator core 3 is provided with winding slots 31 parallel to the central axis of the motor stator ...

Embodiment 2

[0076] A three-phase double-row concentrated winding permanent magnet motor, including a motor shaft 1 as a motor rotor yoke, a radiation ring 2, a motor stator core 3 and a motor armature winding 4,

[0077] A three-phase double-row concentrated winding permanent magnet motor, including a motor shaft 1 as a motor rotor yoke, a radiation ring 2, a motor stator core 3 and a motor armature winding 4, such as Figure 1 to Figure 4 Shown, also comprise sensor 7, sensor 7 selects incremental encoder for use in the present embodiment, as Figure 5 As shown, the sensor 7 is arranged in the casing 5, and the rotating shaft of the sensor 7 is fixedly connected with the motor shaft 1 in a manner that the central axis coincides, and the outer side of the sensor 7 is covered by an outer cover plate 71. Other structures are all the same as in Embodiment 1.

[0078] When this embodiment is used, when the motor is running, some operating parameters of the motor can be obtained through the s...

Embodiment 3

[0080] A three-phase double-row concentrated winding permanent magnet motor, including a motor shaft 1 as a motor rotor yoke, a radiation ring 2, a motor stator core 3 and a motor armature winding 4, and also includes a sensor 7, which is selected in this embodiment For the absolute encoder, the sensor 7 is arranged in the casing 5, and the rotating shaft of the sensor 7 is fixedly connected with the motor shaft 1 in a manner that the central axis coincides, and the outer side of the sensor 7 is covered by an outer cover plate 71. Other structures are all the same as in Embodiment 1.

[0081] When this embodiment is used, when the motor is running, some operating parameters of the motor can be obtained through the signal output by the signal line of the incremental encoder as the sensor 7 . Other usage methods are all the same as embodiment 1.

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Abstract

The invention relates to the field of permanent magnet containing synchronous motors, and particularly relates to a three-phase double-row concentrated winding permanent magnet motor. The three-phase double-row concentrated winding permanent magnet motor comprises a motor shaft (1), a radiation ring (2), a motor stator core (3), and motor armature windings (4). The three-phase double-row concentrated winding permanent magnet motor is characterized in that the radiation ring (2) is formed by sequentially splicing 10 radiation magnetic tiles (21), the radiation ring (2) is circular and hoops the motor shaft (1), the motor stator core (3) sleeves the radiation ring (2), a gap is left between the motor stator core (3) and the radiation ring (2), the central axes of the motor shaft (1), the radiation ring (2) and the motor stator core (3) coincide, and a wire is wound inside winding slots (31) turn by turn to form 12 motor armature windings (4). The three-phase double-row concentrated winding permanent magnet motor has the advantages of high rated output power, high degree of automation in the production process, high production efficiency, and wide range of application.

Description

technical field [0001] The invention relates to the field of synchronous motors with permanent magnets, in particular to a three-phase double-row concentrated winding permanent magnet motor. Background technique [0002] Permanent magnet motors belong to the category of three-phase synchronous motors. The rotor magnetic field is not established by the DC excitation windings, but is directly provided by high energy product permanent magnet materials. It has the advantages of simple structure, small size, light weight, low loss, high efficiency, and high power factor. Advantages, mainly used in high-performance servo drive systems that require fast response, wide speed range, and accurate positioning. The design of the permanent magnet motor follows the design method of the conventional three-phase synchronous motor, and adopts a multi-slot distributed winding design in which the number of slots per pole and each phase q is an integer, so as to reduce the additional eddy curre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K21/14H02K21/02H02K3/28
Inventor 王海彬吴春年周绍宗
Owner SHANGHAI ZHONGCHEN ELECTRONICS TECH
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