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Rotor assembly and motor

A technology of rotors and components, applied in the direction of magnetic circuit rotating parts, electrical components, electromechanical devices, etc., can solve problems affecting the stability of rotor components 100', unstable torque, easy cracking of rubber layers, etc.

Pending Publication Date: 2022-03-18
WELLING WUHU MOTOR MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When transmitted to the inner rotor 120', the locally unstable torque will affect the stability of the rotor assembly 100' and cause the rubber layer to crack easily

Method used

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  • Rotor assembly and motor
  • Rotor assembly and motor
  • Rotor assembly and motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Such as Figure 4 to Figure 11 As shown, an embodiment of the present invention proposes a rotor assembly 100, including: a first rotor 110, a second rotor 120 and a vibration damping part.

[0060] Wherein, the first rotor 110 is provided with a first through hole 112 and at least one first tooth portion 114, the first tooth portion 114 is arranged on the inner wall of the first rotor 110; the second rotor 120 is provided with at least one groove 118, the groove 118 is the same as the number of the first tooth portion 114, that is, one first tooth portion 114 is located in one groove 118, and a gap is formed between the second rotor 120 and the first rotor 110, and the part of the vibration damping part is arranged in the first between the rotor 110 and the second rotor 120 to fill the gap.

[0061] In the rotor assembly 100 provided by the present invention, during operation, the rotor assembly 100 is driven by magnetic force to rotate relative to the stator assembly...

Embodiment 2

[0066] Such as Figure 5 , Figure 7 , Figure 8 and Figure 10 As shown, an embodiment of the present invention proposes a rotor assembly 100, including: a first rotor 110, a second rotor 120 and a vibration damping part.

[0067] Wherein, the first rotor 110 is provided with a first through hole 112 and at least one first tooth portion 114, the first tooth portion 114 is arranged on the inner wall of the first rotor 110; the second rotor 120 is provided with at least one groove 118, the groove 118 is the same as the number of the first tooth portion 114, that is, one first tooth portion 114 is located in one groove 118, and a gap is formed between the second rotor 120 and the first rotor 110, and the part of the vibration damping part is arranged in the first between the rotor 110 and the second rotor 120 to fill the gap.

[0068] Further, a section of the first rotor 110 is taken in a direction perpendicular to the axis of the first rotor 110 , and in the section, the o...

Embodiment 3

[0072] Such as Figure 5, Figure 7 , Figure 9 and Figure 10 As shown, an embodiment of the present invention proposes a rotor assembly 100, including: a first rotor 110, a second rotor 120 and a vibration damping part.

[0073] Wherein, the first rotor 110 is provided with a first through hole 112 and at least one first tooth portion 114, the first tooth portion 114 is arranged on the inner wall of the first rotor 110; the second rotor 120 is provided with at least one groove 118, the groove 118 is the same as the number of the first tooth portion 114, that is, one first tooth portion 114 is located in one groove 118, and a gap is formed between the second rotor 120 and the first rotor 110, and the part of the vibration damping part is arranged in the first between the rotor 110 and the second rotor 120 to fill the gap.

[0074] Further, the first tooth portion 114 includes: a head portion 1144 . The head 1144 is arranged opposite to the groove 118, and the first rotor...

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Abstract

The invention provides a rotor assembly and a motor, the rotor assembly is used for the motor, the rotor assembly comprises a first rotor, the first rotor is provided with a first through hole and at least one first tooth part, and the first tooth part protrudes into the first through hole; the second rotor is arranged in the first through hole, a gap is formed between the first rotor and the second rotor, the second rotor is provided with at least one groove, the first tooth part is arranged in the groove, the second rotor is sectioned in the direction perpendicular to the axis of the second rotor, and on the section, the bottom of the groove is in a curve shape; and at least part of the vibration reduction part is arranged in the gap. According to the rotor assembly provided by the invention, the bottom of the groove is set to be curved, so that the force applied by the vibration reduction part to the second rotor can be dispersed, the stress concentration is avoided, the cracking of the vibration reduction part is avoided, and the service life of the vibration reduction part is prolonged.

Description

technical field [0001] The invention relates to the field of motors, in particular to a rotor assembly and a motor. Background technique [0002] In the related technology, compared with the traditional non-vibration-absorbing rotor, the vibration-damping rubber rotor has improved the vibration-damping performance, and greatly improved the noise characteristics of the corresponding complete machine product. However, during the operation of the rotor, due to the impact of the outer rotor on the rubber layer The force of the rubber layer is prone to cracking and other problems. [0003] Specifically, such as figure 1 As shown, the rotor assembly 100' consists of an outer rotor 110', an inner rotor 120' and a rubber layer 130' injection molded between the outer rotor 110' and the inner rotor 120', wherein the groove of the inner rotor 120' is consistent with the outer rotor 110' The convex teeth adopt excessive corners. [0004] Such as figure 2 As shown, the surface where...

Claims

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Application Information

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IPC IPC(8): H02K1/22H02K16/02H02K1/27
CPCH02K1/22H02K16/02H02K1/27
Inventor 刘承通唐剑武
Owner WELLING WUHU MOTOR MFG