CN207819647U - A kind of noise-dampened motor - Google Patents
A kind of noise-dampened motor Download PDFInfo
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- CN207819647U CN207819647U CN201820038115.3U CN201820038115U CN207819647U CN 207819647 U CN207819647 U CN 207819647U CN 201820038115 U CN201820038115 U CN 201820038115U CN 207819647 U CN207819647 U CN 207819647U
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- noise
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- noise reduction
- engine base
- sound attenuation
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Abstract
The utility model provides a kind of noise-dampened motor, including stator, rotor and engine base（1）, the stator is fixed on engine base（1）Inside, the rotor can be rotated in stator interior, engine base（1）It is equipped with noise reduction component（2）, the noise reduction component（2）Including sound attenuation（201）, bearing rib（202）, noise reduction layer（203）With electromagnetic noise separation layer（204）, the sound attenuation（201）It is installed in engine base（1）Inner or outer side, the bearing rib（202）It is installed in sound attenuation（201）With engine base（1）Between, the engine base（1）, sound attenuation（201）And bearing rib（202）Airtight cavity is collectively formed（205）, the airtight cavity（205）Wall surface on be coated with electromagnetic noise separation layer（204）, the airtight cavity（205）Be internally provided with noise reduction layer（203）, the beneficial effects of the utility model are：Convenient for being improved to the motor produced, and noise reduction is apparent, at low cost.
Description
Technical field
The utility model is related to field of power machinery technology, more particularly, to a kind of noise-dampened motor.
Background technology
With the development of the progress and science and technology of human civilization, people propose increasingly higher demands to living environment.
Water, air and noise are the three big main pollutions in the whole world, severely compromise work, the studying and living of people, and noise is dirty
The main source of dye is electromechanical industries.
Driving force of the motor as various equipment is widely used in industry, agricultural, business and each field of communal facility.Electricity
The noise of machine and vibration are not only the one of the important signs that of evaluation motor quality, and influence the service life of motor.
At present the noise reduction mode of motor consider generally before design choose noise it is low slot number cooperation, or motor into
Noise reduction knapsack is set at air port, and erasure effect is bad.Especially to the exceeded motor of the noise produced, its noise reduction is improved
There is no square implementation formulas easy to operate or excellent noise reduction effect for processing, as in motor cover although noise reduction is played by installation anechoic chamber
Effect, a but anechoic chamber is filled outside motor, it is big that there are occupied spaces, the shortcomings of influencing motor radiating, use environment by
To limitation.
Utility model content
The technical problems to be solved in the utility model is：In view of the problems of the existing technology, a kind of noise-dampened motor is provided,
It using the noise reduction component that multilayer is arranged in base outer, is simple to manufacture, at low cost, noise reduction is apparent, has resistance to engine base vibration
Buddhist nun acts on, and does not influence motor radiating.
The technical problems to be solved in the utility model is realized using following technical scheme：A kind of noise-dampened motor, including it is fixed
Son, rotor and engine base, the stator are fixed on base inner, and the rotor can be rotated in stator interior, and engine base is equipped with noise reduction
Component, the noise reduction component include sound attenuation, bearing rib, noise reduction layer and electromagnetic noise separation layer, and the sound attenuation is solid
It is located on engine base, the bearing rib is installed between sound attenuation and engine base, and the engine base, sound attenuation and bearing rib are total
With airtight cavity is formed, it is coated with electromagnetic noise separation layer on the wall surface of the airtight cavity, the inside of the airtight cavity is set
There is noise reduction layer.
Preferably, the noise reduction layer is connect by the multilayer deadener layer of absorption different frequency sections and is formed.
Preferably, the sound attenuation is installed on the outside of engine base, and the multilayer deadener layer of the noise reduction layer is in machine
To on the direction of sound attenuation, the arrangement mode layer that material layer gradually rises according to the noise frequency absorbed connects to be formed seat.
Preferably, the sound attenuation (201) is installed on the inside of engine base (1), the multilayer noise elimination material of the noise reduction layer
On direction of the engine base to sound attenuation, the arrangement mode layer that material layer is continuously decreased according to the noise frequency absorbed connects the bed of material
It is formed.
Preferably, the noise reduction layer is by the ethylene-propylene-diene monomer glue-line of trepanning, polyurethane noise reduction layer, trepanning polyester fiber
One or more crimping of plate, polypropylene layer and neoprene layer are formed.
Preferably, the multilayer deadener layer of the noise reduction layer is by crimping or being bonded or riveted or be bolted to one
It rises.
Preferably, the external of the noise reduction layer wraps up matcoveredn, and the protective layer is made of glass fabric.
Preferably, the sound attenuation is the steel plate with punching.
Preferably, the sound attenuation is fixed on by welding or bolt on engine base.
Preferably, the noise reduction layer is fixed on by way of being bonded, being bolted or be interference fitted in airtight cavity.
Compared with prior art, the utility model has the beneficial effects that：Using in the outside of electric machine stand or inside installation
Sound attenuation assembly can effectively reduce noise, and also have certain damping/damping action, since sound attenuation assembly is absorbed not by multilayer
The deadener lamination composition of same frequency, meanwhile, the external of deadener layer wraps up glass fibre, on the shell of noise elimination shell
Multiple through-holes are offered, to enhance the decaying to noise under the premise of protecting deadener layer, realize noise elimination electric machine structure letter
The features such as list has deadening frequency band range wide, cushioning effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the A partial enlarged views of the utility model.
Fig. 3 is the A partial enlarged views of the engine base and sound attenuation of the utility model.
Token name claims in figure：1- engine bases, 2- noise reduction components, 201- sound attenuations, 202- bearing ribs, 203- noise reduction layers,
204- electromagnetic noise separation layers, 205- airtight cavities, 206- protective layers.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with the accompanying drawings and specifically
The utility model is described in detail in embodiment.It should be appreciated that specific embodiment described herein is only used to explain this
Utility model is not used to limit the utility model.
As shown in Figure 1, a kind of noise-dampened motor, including engine base 1 and noise reduction component 2, the inside of the engine base 1, which is fixedly mounted, determines
The internal sleeve of son, stator is equipped with rotor, and the both ends of rotor are mounted on the end of engine base 1 by bearing.After stator is powered, rotor is opened
Begin to rotate in stator interior, unavoidably will produce the noise of multiple frequency bands, which is mainly airborne noise, electromagnetic noise
And mechanical noise.The noise reduction component 2 can be mounted on the inside wall surface or external wall surface of engine base 1 to reduce above-mentioned noise, this
Embodiment is mounted on the outside of engine base 1.
As shown in Figures 2 and 3, noise reduction component 2 includes sound attenuation 201, bearing rib 202, noise reduction layer 203 and electromagnetism
Noise isolation layer 204, noise elimination shell 201 can be welded on engine base 1 or are bolted on engine base 1, noise elimination shell
201 are made of steel plate, and in order to mitigate the weight of sound attenuation assembly while ensure the noise reduction of sound attenuation assembly, more preferably mode is
Noise elimination shell 201 is made of the stainless steel plate with uniform punching.Support has been equipped between noise elimination shell 201 and engine base 1
With the bearing rib 202 for increasing sound attenuation assembly intensity, one end of bearing rib 202 is welded on noise elimination shell 201, the other end with
Engine base 1 contacts.When sound attenuation assembly 2 is welded or is bolted on engine base 1, engine base 1, noise elimination shell 201 and bearing rib
202 define airtight cavity 205, and the surface of the airtight cavity 205 coats one layer of electromagnetic noise separation layer 204.It is described closed
The inside of cavity 205 is filled with noise reduction layer 203, and the noise reduction layer 203 is consolidated by way of being bonded, being bolted or be interference fitted
It is scheduled in airtight cavity 205, the quieter material that noise reduction layer 203 is absorbed different frequency range by multilayer forms, the noise reduction layer of the present embodiment
203 are made for the acoustic damping materials bonding of multilayer different frequency range, and the noise frequency range that noise reduction layer 203 is absorbed is gradual outward by internal layer
Increased arrangement is to absorb the material layer of low frequency range noise close to engine base 1 noise reduction layer, 203 groups of stratification（Such as the ternary second of trepanning
Third rubber）, secondly outside group stratification is to absorb the material layer of Mid Frequency noise（Such as polyurethane sponge）, then outside group stratification
To absorb the material layer of high band noise（Such as the polyester fiber board of trepanning）, in addition to above-mentioned three layers, 203 outermost layer of noise reduction layer may be used also
It is laid with the material layer for absorbing electromagnetic noise.Also the composition number of plies of noise reduction layer 203 can be increased or decreased according to needs of production,
The bonding sequence between layers of the noise situations adjustment noise reduction layer 203 generated when can be worked according to real electrical machinery, i.e. noise reduction
The middle part of layer 203 is the material layer for absorbing low frequency range noise, and the both sides of the material layer are relatively high frequency range absorption of noise material
Material, preferably arrangement mode are preferably to filter out relatively low-frequency noise, relatively high frequency using macropore deadener layer
The noise of rate is filtered using aperture deadener layer.In order to ensure that noise reduction layer 203 will not be because squeezing or colliding generation table when installation
Face is damaged and influences the effect of its noise reduction, therefore wraps up one layer of protective layer 206 in the external of noise reduction layer 203, and the protective layer 206 can
It preferably and with the material of excellent toughness is made using sound translative performance, such as glass fabric or carbon cloth, to not influence
Under the premise of noise reduction, there is certain protective action to noise reduction layer 203.Another embodiment sound attenuation 201 is fixed
In the inside of engine base 1, the multilayer deadener layer of the noise reduction layer 203 in engine base 1 on the direction of sound attenuation 201, material
The arrangement mode layer that layer is continuously decreased according to the noise frequency absorbed connects to be formed, the fixed form of the present embodiment and the choosing of material
Select with noise reduction component 2 be mounted on the embodiment of outside of engine base 1 it is consistent, by change noise reduction layer 203 layer connect sequence, preferably
Relatively low-frequency noise is filtered out using macropore deadener layer.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, and should refer to
Go out, all any modification, equivalent and improvement made within the spirit and principle of the present invention etc. should all include
It is within the protection scope of the utility model.
Claims (10)
1. a kind of noise-dampened motor, including stator, rotor and engine base（1）, the stator is fixed on engine base（1）Inside, the rotor
It can be rotated in stator interior, it is characterised in that：Engine base（1）It is equipped with noise reduction component（2）, the noise reduction component（2）Including noise reduction
Shell（201）, bearing rib（202）, noise reduction layer（203）With electromagnetic noise separation layer（204）, the sound attenuation（201）Gu
It is located at engine base（1）On, the bearing rib（202）It is installed in sound attenuation（201）With engine base（1）Between, the engine base（1）、
Sound attenuation（201）And bearing rib（202）Airtight cavity is collectively formed（205）, the airtight cavity（205）Wall surface on apply
It is covered with electromagnetic noise separation layer（204）, the airtight cavity（205）Be internally provided with noise reduction layer（203）.
2. a kind of noise-dampened motor according to claim 1, it is characterised in that：The noise reduction layer（203）It is different by absorbing
The multilayer deadener layer of frequency band connects to be formed.
3. a kind of noise-dampened motor according to claim 2, it is characterised in that：The sound attenuation (201) is installed in machine
On the outside of seat (1), the noise reduction layer（203）Multilayer deadener layer in engine base（1）To sound attenuation（201）Direction on,
The arrangement mode layer that material layer gradually rises according to the noise frequency absorbed connects to be formed.
4. a kind of noise-dampened motor according to claim 2, it is characterised in that：The sound attenuation (201) is installed in machine
On the inside of seat (1), the noise reduction layer（203）Multilayer deadener layer in engine base（1）To sound attenuation（201）Direction on,
The arrangement mode layer that material layer is continuously decreased according to the noise frequency absorbed connects to be formed.
5. a kind of noise-dampened motor according to claim 3 or 4, it is characterised in that：The noise reduction layer（203）By trepanning
One or more pressures of ethylene-propylene-diene monomer glue-line, polyurethane noise reduction layer, trepanning polyester fiber board, polypropylene layer and neoprene layer
It connects to be formed.
6. a kind of noise-dampened motor according to claim 5, it is characterised in that：The noise reduction layer（203）Multilayer eliminate the noise
Material layer is by crimping or being bonded or riveted or be bolted together.
7. a kind of noise-dampened motor according to claim 6, it is characterised in that：The noise reduction layer（203）External package
Matcoveredn（206）, the protective layer（206）It is made of glass fabric.
8. a kind of noise-dampened motor according to claim 7, it is characterised in that：The sound attenuation（201）To carry punching
The steel plate in hole.
9. a kind of noise-dampened motor according to claim 8, it is characterised in that：The sound attenuation（201）Pass through welding
Or bolt is fixed on engine base（1）On.
10. a kind of noise-dampened motor according to claim 9, it is characterised in that：The noise reduction layer（203）By being bonded,
The mode for being bolted or being interference fitted is fixed on airtight cavity（205）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820038115.3U CN207819647U (en) | 2018-01-10 | 2018-01-10 | A kind of noise-dampened motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820038115.3U CN207819647U (en) | 2018-01-10 | 2018-01-10 | A kind of noise-dampened motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207819647U true CN207819647U (en) | 2018-09-04 |
Family
ID=63325622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820038115.3U Active CN207819647U (en) | 2018-01-10 | 2018-01-10 | A kind of noise-dampened motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207819647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242770A (en) * | 2019-07-16 | 2021-01-19 | 比亚迪股份有限公司 | Motor casing, motor and have its vehicle |
-
2018
- 2018-01-10 CN CN201820038115.3U patent/CN207819647U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242770A (en) * | 2019-07-16 | 2021-01-19 | 比亚迪股份有限公司 | Motor casing, motor and have its vehicle |
| CN112242770B (en) * | 2019-07-16 | 2022-03-18 | 比亚迪股份有限公司 | Motor casing, motor and have its vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210817 Address after: 618000 No. 19-12, building 21, phase I, Yinxin Wuzhou Plaza, No. 733, Section 2, Taishan South Road, Deyang City, Sichuan Province Patentee after: Dongfang Electric (Deyang) Motor Technology Co.,Ltd. Patentee after: DEC DONGFANG ELECTRIC MACHINERY Co.,Ltd. Address before: 188 Huanghe West Road, Jingyang District, Deyang City, Sichuan Province Patentee before: DEC DONGFANG ELECTRIC MACHINERY Co.,Ltd. |