CN216672772U

CN216672772U - Noise reduction structure of high-speed motor

Info

Publication number: CN216672772U
Application number: CN202122830237.0U
Authority: CN
Inventors: 佘建辉
Original assignee: Hunan Changjincheng Electric Appliance Co ltd
Current assignee: Hunan Changjincheng Electric Appliance Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-06-03
Anticipated expiration: 2031-11-18

Abstract

The utility model relates to a noise reduction structure of a high-speed motor, which comprises a shell, a motor shaft and a motor shaft, wherein the shell comprises a bearing chamber at one side in the shell; the stator chamber is arranged on the other side in the shell and is coaxial and communicated with the bearing chamber; the first glue storage groove is arranged on the inner periphery of the bearing chamber; the second glue storage groove is arranged on the inner periphery of the stator chamber; and the damping colloid is respectively filled in the first glue storage groove and the second glue storage groove. Through store up gluey inslot packing at first glue storage tank and second and store up the damping colloid that the inslot was filled and is higher than bearing room and stator room inner peripheral surface, inseparable butt bearing and stator module's periphery plays the effect of restraining, absorbing the vibrations that the rotor subassembly transmitted on the casing, effectively reduces the motor running noise that high frequency vibrations brought, improves and uses experience.

Description

Noise reduction structure of high-speed motor

Technical Field

The utility model relates to the technical field of household appliances, in particular to a noise reduction structure of a high-speed motor.

Background

Present high-speed air-blowing motor mainly is applied to the domestic appliance that the air demand is big such as dust catcher and hand dryer, because multi-purpose interference inlays the mode of dress and connects between each accessory, wherein does not have buffer structure, leads to high-speed motor when the operation, and the vibrations of its rotor subassembly can produce the vibrations of high frequency in the motor, and the vibrations of high frequency can make the motor produce great running noise to the influence uses experience.

SUMMERY OF THE UTILITY MODEL

The utility model provides a noise reduction structure of a high-speed motor, which aims to solve at least one technical problem in the prior art.

The technical scheme of the utility model is that the noise reduction structure of the high-speed motor comprises a shell, wherein the shell comprises: the bearing chamber is arranged on one side in the shell and communicated with the outside of the shell; a stator chamber disposed on the other side of the housing; a first glue storage groove formed on the inner periphery of the bearing chamber; the second glue storage groove is formed on the inner periphery of the stator chamber; and the damping colloid is filled in the first glue storage groove and the second glue storage groove respectively.

Further, the first glue storage groove comprises at least one annular glue storage groove which is annularly arranged on the inner periphery of the bearing chamber.

Further, the second glue storage groove comprises at least one annular glue storage groove which is annularly arranged on the inner periphery of the stator chamber.

And the stator assembly is embedded in the stator chamber and corresponds to the notch of the second glue storage groove.

Further, still include the rotor subassembly, the rotor subassembly includes: the bearing is embedded in the bearing chamber and corresponds to the notch of the first glue storage groove; the motor shaft is rotatably connected with the bearing chamber through inserting the bearing; the wind impeller is fixedly connected to one end of the motor shaft and is positioned on the outer side of the bearing chamber; the permanent magnet ring is sleeved on the periphery of the other end of the motor shaft and is positioned in the stator assembly; the third glue storage groove is formed on the periphery of the other end of the motor shaft and is positioned in the inner ring surface of the permanent magnet ring; and the damping colloid is filled between the third glue storage groove and the inner ring of the permanent magnet ring.

Further, the third glue storage tank comprises at least one annular glue storage tank annularly arranged on the periphery of the motor shaft.

And the vibration damping device further comprises a vibration damping spring which is abutted between every two bearings, and the vibration damping spring is sleeved on the periphery of the motor shaft.

Further, a metal gasket is arranged between the vibration suppression spring and the bearing.

Further, a damping rubber ring is arranged between the metal gasket and the vibration suppression spring.

Furthermore, the air-cooled generator further comprises an air channel which is arranged in the shell and positioned at the periphery of the bearing chamber and the stator chamber, and a plurality of air deflectors are arranged in the air channel in a spiral manner.

The utility model has the following beneficial effects. According to the noise reduction structure of the high-speed motor, the damping colloid higher than the inner peripheral surfaces of the bearing chamber and the stator chamber is filled in the first glue storage groove and the second glue storage groove, when the bearing is embedded in the bearing chamber and the stator module is embedded in the stator chamber, the damping colloid is pressed and deformed and is tightly abutted to the periphery of the bearing and the periphery of the stator module, when the stator module excites and drives the rotor module to rotate at a high speed, the effect of restraining and absorbing vibration transmitted to the shell by the rotor module is achieved, the running noise of the motor caused by high-frequency vibration is effectively reduced, and the use experience is improved.

Drawings

FIG. 1 is a longitudinal sectional view of the present invention.

Fig. 2 is an exploded schematic view of the present invention.

Fig. 3 is a perspective view showing one direction of the housing of the present invention.

Fig. 4 is a perspective view showing another direction of the housing of the present invention.

In the above figures, 100, motor shaft; 110. a third glue storage tank; 200. a wind impeller; 300. a shock absorbing colloid; 400. a first bearing; 500. a second bearing; 600. a housing; 610. a bearing chamber; 611. a first glue storage tank; 620. a stator chamber; 621. a second glue storage tank; 630. an air duct; 631. an air deflector; 700. a stator assembly; 800. a permanent magnet ring; 900. a shock suppression spring; 1000. a metal gasket; 1100. shock attenuation rubber ring.

Detailed Description

The conception, the specific structure and the technical effects produced by the present invention will be clearly and completely described in conjunction with the embodiments and the attached drawings, so as to fully understand the objects, the schemes and the effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the descriptions of upper, lower, left, right, top, bottom, etc. used in the present invention are only relative to the mutual positional relationship of the components of the present invention in the drawings.

Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any combination of one or more of the associated listed items.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.

Referring to fig. 1 to 4, a technical solution of the present invention is a noise reduction structure of a high-speed motor, including a housing 600, where the housing 600 includes a bearing chamber 610 disposed at one side inside the housing 600 and communicated to the outside of the housing 600; a stator chamber 620 provided at the other side in the housing 600, and the stator chamber 620 is coaxial and communicated with the bearing chamber 610; a first glue reservoir 611 formed on the inner periphery of the bearing chamber 610; the second glue storage groove 621 formed on the inner periphery of the stator chamber 620 further comprises a stator assembly 700, and the stator assembly 700 is embedded in the stator chamber 620 and corresponds to a notch of the second glue storage groove 621; the damping rubber body 300 is filled in the first rubber storage groove 611 and the second rubber storage groove 621 respectively. According to the noise reduction structure of the high-speed motor, the first glue storage groove 611 and the second glue storage groove 621 are filled with the damping glue 300 which is higher than the inner peripheral surfaces of the bearing chamber 610 and the stator chamber 620, when the bearing chamber 610 is embedded with the bearing and the stator chamber 620 is embedded with the stator assembly 700, the damping glue 300 is pressed to deform and tightly abuts against the periphery of the bearing and the stator assembly 700, when the stator assembly 700 is excited to drive the rotor assembly to rotate at a high speed, the effect of restraining and absorbing the vibration transmitted to the shell 600 by the rotor assembly is achieved, the running noise of the motor caused by high-frequency vibration is effectively reduced, and the use experience is improved.

Referring to fig. 3 and 4, in order to achieve balance between cost control and vibration suppression through a reasonable number of the first glue storage groove 611 and the second glue storage groove 621, both the first glue storage groove 611 and the second glue storage groove 621 can be implemented by means of a cross mesh groove or a plurality of wave grooves, but in order to facilitate processing of the glue storage grooves and filling of the vibration-damping glue 300, the first glue storage groove 611 includes at least one annular glue storage groove annularly arranged on the inner periphery of the bearing chamber 610, and the second glue storage groove 621 is preferably an annular glue storage groove annularly arranged on the inner periphery of the stator chamber 620.

Referring to fig. 1 and 2, in order to reduce the self-generated high-frequency vibration when the motor rotor rotates, the motor rotor further comprises a rotor assembly, wherein the rotor assembly comprises at least one bearing, is embedded in the bearing chamber 610, and corresponds to a notch of the first glue storage tank 611; a motor shaft 100 rotatably coupled to the bearing housing 610 through a cartridge bearing; the wind impeller 200 is fixedly connected to one end of the motor shaft 100 and is positioned outside the bearing chamber 610; a permanent magnet ring 800 sleeved on the outer circumference of the other end of the motor shaft 100, and the permanent magnet ring 800 is located in the stator assembly 700; a third glue storage tank 110 formed on the outer circumference of the other end of the motor shaft 100 and located in the inner annular surface of the permanent magnet ring 800; wherein, the damping rubber body 300 is filled between the third rubber storage tank 110 and the inner ring of the permanent magnet ring 800. The third glue storage groove 110 is filled with the damping glue 300 higher than the outer peripheral surface of the motor shaft 100, so that when the permanent magnet ring 800 is sleeved on the motor shaft 100, the damping glue 300 deforms under pressure and tightly abuts against the inner annular surface of the permanent magnet ring 800, and when the stator assembly 700 excites the driving rotor structure to rotate at a high speed, the damping glue plays a role in restraining and absorbing the vibration transmitted to the motor shaft 100 by the permanent magnet ring 800.

Referring to fig. 1 and 2 again, the number of bearings may be one long bearing or three or more bearings, but it is disadvantageous to assembly or cost-prohibitive, and in the embodiment of the present invention, the number of bearings is preferably two, including the first bearing 400 and the second bearing 500 respectively fitted in both ends of the bearing chamber 610, and the annular first glue reservoir 611 is preferably two, specifically, the two first glue reservoirs 611 are respectively provided on the inner circumference of the bearing chamber 610 corresponding to the first bearing 400 and the second bearing 500, and have an effect of absorbing and suppressing the vibration transmitted from the bearings by the cushion rubber body 300.

Referring to fig. 2, in order to achieve balance in controlling cost and suppressing vibration through a reasonable number of third glue storage tanks 110, the glue storage tanks may be implemented in the above mentioned cross mesh grooves or multiple wave grooves, but also in order to facilitate processing of the third glue storage tanks 110 and filling of the damping glue 300, in an embodiment of the present invention, the third glue storage tanks 110 include three annular glue storage tanks annularly arranged on the outer periphery of the motor shaft 100, specifically, the three glue storage tanks are uniformly distributed in the inner annular surface of the permanent magnet ring 800, so that the damping glue 300 in each glue storage tank is uniformly stressed, and the damping and noise reduction effects are excellent.

Specifically, the damping rubber 300 may be implemented by injecting and filling a high elastic soft rubber, or may be implemented by embedding a high temperature resistant silicone ring and/or a high temperature resistant rubber ring in order to improve the assembly efficiency.

In order to further reduce the vibration generated by the first bearing 400 and the second bearing 500 when the motor shaft 100 rotates, the vibration suppressing spring 900 is abutted between the first bearing 400 and the second bearing 500, and the vibration suppressing spring 900 is sleeved on the outer periphery of the motor shaft 100, so that the resonance generated by the first bearing 400 and the second bearing 500 when the motor shaft 100 rotates is buffered, and the problem of large noise caused by the resonance is solved.

Referring to fig. 1 and 2, a metal gasket 1000 is disposed between the damping spring 900 and the bearing, so as to support and abut against the damping spring 900, and prevent the damping spring 900 from wearing the first bearing 400 and the second bearing 500 when the rotor structure rotates.

Referring to fig. 1 and 2, a damping rubber ring 1100 is disposed between the metal gasket 1000 and the shock suppressing spring 900, so as to buffer the wear between the shock suppressing spring 900 and the metal gasket 1000 and prolong the service life.

Referring to fig. 1 and 3, the wind turbine further includes a wind channel 630 disposed in the casing 600 and located at the periphery of the bearing chamber 610 and the stator chamber 620, the wind channel 630 corresponds to the wind outlet end of the wind turbine 200, and a plurality of wind deflectors 631 are spirally disposed in the wind channel 630, so that the wind channel 630 and the wind deflectors 631 are designed to collect wind and pressurize the wind.

The present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present disclosure should be included in the scope of the present disclosure as long as the technical effects of the present invention are achieved by the same means. Are intended to fall within the scope of the present invention. The utility model is capable of other modifications and variations in its technical solution and/or its implementation, within the scope of protection of the utility model.

Claims

1. A noise reduction structure of a high speed motor, comprising a case (600), characterized in that the case (600) comprises:

a bearing chamber (610) arranged at one side in the shell (600) and communicated to the outside of the shell (600);

a stator chamber (620) provided at the other side in the housing (600);

a first glue reservoir groove (611) formed on the inner periphery of the bearing chamber (610);

a second glue storage groove (621) formed on the inner periphery of the stator chamber (620);

and the shock absorption colloid (300) is respectively filled in the first glue storage groove (611) and the second glue storage groove (621).

2. The noise reduction structure of a high-speed motor according to claim 1,

the first glue storage groove (611) comprises at least one annular glue storage groove annularly arranged on the inner periphery of the bearing chamber (610).

3. The noise reduction structure of a high-speed motor according to claim 1,

the second glue storage tank (621) comprises at least one annular glue storage tank annularly arranged on the inner periphery of the stator chamber (620).

4. The noise reduction structure of a high-speed motor according to claim 1, further comprising:

and the stator assembly (700) is embedded in the stator chamber (620) and corresponds to the notch of the second glue storage groove (621).

5. The noise reduction structure of a high-speed motor according to claim 4, further comprising:

a rotor assembly, the rotor assembly comprising:

at least one bearing, which is embedded in the bearing chamber (610) and corresponds to the notch of the first glue storage tank (611);

a motor shaft (100) rotatably connected to the bearing chamber (610) by inserting the bearing;

the wind impeller (200) is fixedly connected to one end of the motor shaft (100) and is positioned outside the bearing chamber (610);

the permanent magnet ring (800) is sleeved on the periphery of the other end of the motor shaft (100) and is positioned in the stator assembly (700);

the third glue storage groove (110) is formed in the periphery of the other end of the motor shaft (100) and is positioned in the inner ring surface of the permanent magnet ring (800);

the shock absorption colloid (300) is filled between the third colloid storage groove (110) and the inner ring of the permanent magnet ring (800).

6. The noise reduction structure of a high-speed motor according to claim 5,

the third glue storage tank (110) comprises at least one annular glue storage tank annularly arranged on the periphery of the motor shaft (100).

7. The noise reduction structure of a high-speed motor according to claim 5, further comprising:

and the vibration suppression spring (900) is abutted between every two bearings, and the vibration suppression spring (900) is sleeved on the periphery of the motor shaft (100).

8. The noise reduction structure of a high-speed motor according to claim 7,

and a metal gasket (1000) is arranged between the shock suppression spring (900) and the bearing.

9. The noise reduction structure of a high-speed motor according to claim 8,

and a damping rubber ring (1100) is arranged between the metal gasket (1000) and the shock restraining spring (900).

10. The noise reduction structure of a high-speed motor according to claim 1, further comprising:

and the air duct (630) is arranged in the shell (600) and is positioned at the peripheries of the bearing chamber (610) and the stator chamber (620), and a plurality of air deflectors (631) are arranged in the air duct (630) in a spiral manner.