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Motor noise reduction structure

A technology of motors and motor brackets, applied in the field of electric motors, can solve problems such as equipment noise, vibration generated by motor operation, unbalanced load quality, etc., to achieve the effect of eliminating noise and avoiding direct rigid contact

Pending Publication Date: 2019-03-29
孙新年
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the production process of the motor, absolute precision cannot be guaranteed between the bearing and the motor shaft and other accessories, resulting in vibration when the motor is running, which in turn generates noise during the operation of the equipment
[0004] At the same time, the load driven by the motor may have mass imbalance, or there may be external shocks, which will also transmit vibration to the motor and the entire equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] figure 1 It shows a specific embodiment 1 of a motor noise reduction structure of the present invention, which mainly includes a motor, a load 5, a motor bracket 6, and a flexible isolation assembly. The flexible isolation assembly at least includes a reinforced flexible connection part 7 and a flexible deformation part 71 .

[0036] The motor of this embodiment includes a stator 1 , an inner rotor 2 , a rotating shaft 3 and a bearing 4 .

[0037] The inner rotor 2 is sheathed and fixed on the rotating shaft 3, and the two ends of the rotating shaft 3 are fixedly connected with the stator 1 through a bearing 4 respectively.

[0038] See attached figure 2 , the enhanced flexible connector 7 has two independent parts, one of which is fixed on the stator 1 through a connecting bolt 1 72, and the other part is fixed on the motor bracket 6 through a connecting bolt 2 73, the The flexible deformation member 71 is fixedly connected between the two parts. Wherein, in order...

Embodiment approach

[0041] in the attached figure 1 , as another preferred embodiment of the present invention, the flexible isolation assembly further includes a load-bearing flexible isolation sleeve / cap 51 made of a flexible material. The load flexible isolation sleeve / cap 51 is sleeved on the power output end of the rotating shaft 3 of the motor, and the load 5 is sleeved on the load flexible isolation sleeve / cap 51 with an interference fit. The load flexible isolation sleeve / cap 51 has at least two functions: one of them is used to isolate the vibration generated when the load 5 rotates, so as to avoid transmission to the rotating shaft 3; The center is elastically deformed by the extrusion of the centrifugal force of the load, and the auxiliary load 5 automatically realizes the dynamic balance adjustment. That is to say, the use of the load flexible isolation sleeve / cap 51 of the present invention can save the dynamic balance debugging process in the product manufacturing process. The latt...

Embodiment 2

[0045] attached image 3 It shows the second specific embodiment of a motor noise reduction structure of the present invention, which mainly includes a motor, a load 5, a motor bracket 6, a motor fixing member 8, and a flexible isolation assembly. The flexible isolation assembly at least includes a bracket connector 61 and a flexible connector 62 .

[0046] The motor of this embodiment includes a stator (not shown in the figure), an outer rotor 21 and a rotating shaft 3 .

[0047] The outer rotor 21 is sheathed and fixed on the rotating shaft 3, and supported on the stator and the motor fixing member 8 through bearings (not shown in the figure) respectively.

[0048] Two bracket connecting parts 61 are provided between the motor bracket 6 and the motor fixing part 8 . The cross-section of the support connector 61 is roughly "L"-shaped, a protrusion or flange is provided on one extension of the "L" shape, and the flexible connector 62 is provided on both sides of the other exte...

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Abstract

The invention discloses a motor noise reduction structure. The structure mainly comprises a motor, a load, a motor bracket and a flexible isolation assembly; the flexible isolation assembly at least includes a reinforced flexible connection piece and a flexible deformation piece; the motor includes a stator, an inner rotor, a rotating shaft and bearings; and the reinforced flexible connection piece is provided with two independent parts, one of the parts is fixed to the stator, the other of the parts is fixed to the motor bracket, and the flexible deformation piece is fixedly connected betweenthe two parts. The structure employs a flexible isolation connection piece to fix a motor to the motor bracket, so that direct rigid contact between the motor and the bracket is avoided, and silent operation of the motor is basically achieved.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a motor noise reduction structure. Background technique [0002] Motors are widely used in production and life, especially the application of small and micro motors is the most common in life. [0003] During the production process of the motor, absolute precision cannot be guaranteed between the bearing and the motor shaft and other accessories, resulting in vibration when the motor is running, which in turn generates noise during the operation of the equipment. [0004] At the same time, the load driven by the motor may have mass imbalance or external impact, which will also transmit vibration to the motor and the entire equipment. [0005] Noise has brought environmental pollution to people's production and life, making people feel uncomfortable for a long time. Contents of the invention [0006] The purpose of the present invention is to eliminate or reduce the...

Claims

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Application Information

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IPC IPC(8): H02K5/24H02K5/16H02K7/14
CPCH02K5/16H02K5/24H02K7/14
Inventor 孙新年
Owner 孙新年
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