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Stator assembly and motor

A component and stator technology, applied in the field of stator components and motors, can solve the problems of insufficient payload of drones, low power density of motors, and elevated operating temperature

Pending Publication Date: 2022-08-02
THE UNIV OF NOTTINGHAM NINGBO CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a stator assembly with heat dissipation effect, so that the stable temperature rise of the motor using the technical solution is greatly reduced during operation, and the power density and reliability are greatly improved, so as to solve the existing problems. Under the technology, the excessive temperature rise of this type of motor and the low power density of the motor cause the problem of insufficient payload of the drone, thereby improving the payload, endurance and reliability of the drone

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] like Figure 1-5 As shown, the present invention provides a stator assembly, comprising a stator core 1 with 24 stator slots, the stator core 1 is provided with a bracket 5 for supporting the stator core 1, and the bracket 5 is an interference fit on the stator core 1. In the installation through slot 11 of the stator core 1, the bracket 5 is provided with ribs 51, each of the stator slots is provided with two layers of windings 2, and there is a gap 3 between the two layers of the windings 2. , the stator assembly also includes a heat dissipation part 4 for heat dissipation of the winding 2, the heat dissipation part 4 includes 24 heat pipes 41, and the 24 heat pipes 41 include 18 first heat pipes 411 and 6 second heat pipes 412 , one end of the 18 first heat pipes 411 is connected to a heat dissipation plate group 42 and the other end is inserted into the gap 3 of the corresponding stator slot. The heat dissipation plate group 42 is evenly distributed on the stator co...

Embodiment 2

[0037] like Image 6 As shown, the difference between this embodiment and the first embodiment is that the first connecting portion of the heat dissipation plate group 42 includes a connecting plate 423, and a plurality of the heat dissipation fins 421 are arranged on one side of the connecting plate 423, The other side of the connecting plate 423 is bonded to the first heat pipe 411 through thermal conductive silicone grease.

Embodiment 3

[0039] The difference between this embodiment and the first embodiment is that the 24 heat pipes 41 of the heat dissipation part 4 of the stator assembly are all first heat pipes 411 , and one end of the first heat pipes 411 away from the winding 2 is connected to one of the first heat pipes 411 . The heat dissipation plate group 42 .

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Abstract

The invention provides a stator assembly and a motor, the stator assembly comprises a stator core with a plurality of stator slots, each stator slot is internally provided with two layers of windings, a gap is arranged between the two layers of windings, the stator assembly further comprises a heat dissipation part used for heat dissipation of the windings, the heat dissipation part comprises a heat conduction pipe and a heat dissipation element, and the heat conduction pipe is arranged in the heat dissipation element. One end of the heat conduction pipe is connected with the heat dissipation element, the other end of the heat conduction pipe is inserted into the gap and conducts heat with the winding through contact, the gap is filled with heat conduction silicone grease with electrical insulation, and the heat conduction silicone grease is used for transferring heat generated by the winding to the heat conduction pipe. According to the stator assembly and the motor in the technical scheme, the stable temperature rise of the motor applying the technical scheme is greatly reduced during operation, and the power density and the reliability are greatly improved, so that the problem of insufficient effective load of an unmanned aerial vehicle caused by overhigh operation temperature rise and low motor power density of the motor in the prior art is solved; therefore, the effective load, the endurance time and the reliability of the unmanned aerial vehicle are improved.

Description

technical field [0001] The present invention relates to the technical field of motors, and in particular, to a stator assembly and a motor. Background technique [0002] The development trend of large and heavy-duty UAVs puts forward higher requirements on the power density, torque density and reliability of the motors. At this stage, the main bottleneck restricting the improvement of motor performance is the thermal management system of the motor. Therefore, improving the heat dissipation conditions of the motor is of great significance for improving the performance of the motor and promoting the development of the industry. [0003] The current density and thermal load of high power density motors are usually relatively large, so the motor generates a lot of heat during operation, and the temperature rise of the motor is relatively high. The UAV drive motor has high requirements on power-to-weight ratio and reliability, so air-cooled heat dissipation is usually adopted. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/24H02K3/14H02K1/20H02K9/22
CPCH02K3/24H02K3/14H02K1/20H02K9/225H02K9/227Y02T50/60
Inventor 张晓晨赵韩李静张何
Owner THE UNIV OF NOTTINGHAM NINGBO CHINA
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