CN106073631B - A kind of noise reduction structure of motor - Google Patents
A kind of noise reduction structure of motor Download PDFInfo
- Publication number
- CN106073631B CN106073631B CN201610648626.2A CN201610648626A CN106073631B CN 106073631 B CN106073631 B CN 106073631B CN 201610648626 A CN201610648626 A CN 201610648626A CN 106073631 B CN106073631 B CN 106073631B
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- Prior art keywords
- noise reduction
- motor
- reduction structure
- air outlet
- cavity
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- 230000009467 reduction Effects 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 29
- 230000008569 process Effects 0.000 claims abstract description 28
- 230000008030 elimination Effects 0.000 claims abstract description 25
- 238000003379 elimination reaction Methods 0.000 claims abstract description 25
- 230000030279 gene silencing Effects 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000003584 silencer Effects 0.000 description 22
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000013396 workstream Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of noise reduction structure of motor, in particular to a kind of noise reduction structure of motor of vacuum cleaner, motor cover including accommodating motor, it successively include dynamic impeller cavity and silencing cavity by air inlet to air outlet in the motor cover, the movable vane wheel is intracavitary to be equipped with movable impeller component, the first noise elimination part and/or the second noise elimination part are equipped in the silencing cavity, first noise elimination part includes oblique grid, and second noise elimination part includes the Process that the air outlet is arranged in and the quieter material being arranged on the inside of the air outlet.The present invention can be effectively reduced wind and make an uproar.
Description
Technical field
The present invention relates to a kind of noise reduction structure of motor more particularly to a kind of denoising structures of motor of dust collector.
Background technique
Dust catcher uses motor as power device driving movable impeller component work.Dust catcher can generate gas at work
Stream, air-flow can generate noise when passing through motor cover cavity, and the size of noise can be because of the difference of structure, the material of motor cover cavity etc.
And it is different.For direct current vertical type dust collector, because of its design requirement, keep its package size smaller, thus space is limited in casing,
Complicated noise-reducing structure can not be arranged keeps the operating experience of user poor, comfortably so can generate biggish noise at work
It spends not high.
For above-mentioned technical problem, the usual way of the prior art is the setting noise reduction sponge in casing.This way
It is advantageous in that structure is simple, setting is convenient, and cost is relatively low.But disadvantage is also fairly obvious, i.e., sound-absorbing effect is not ideal enough, noise reduction
Space is limited.
Therefore, it is necessory to develop a kind of novel noise reduction structure of motor, to overcome defect in the prior art.
Summary of the invention
The object of the present invention is to provide a kind of noise reduction structure of motor, can be effectively reduced the wind that motor generates at work
It makes an uproar.
For achieving the above object, the technical solution adopted by the present invention is that:
A kind of noise reduction structure of motor, the motor cover of the accommodating motor including being equipped with air inlet and air outlet, the motor cover
Inner chamber body successively includes dynamic impeller cavity and silencing cavity by the air inlet to the air outlet, and the movable vane wheel is intracavitary to be equipped with movable vane
Wheel assembly, the silencing cavity is interior to be equipped with the first noise elimination part and/or the second noise elimination part, and first noise elimination part includes oblique grid,
Second noise elimination part includes the Process that the air outlet is arranged in；The oblique grid includes oblique panel and adjacent two
The minimum widith in the narrow air duct formed between a oblique panel, the narrow air duct is not more than 3mm.
Further, the minimum widith in the narrow air duct is not exactly the same.
Further, the quantity in the narrow air duct is prime number.
Further, the aperture of the Process is not more than 3mm.
Further, the aperture of the Process is not exactly the same.
Further, the depth of the Process is not exactly the same.
Further, the Process is in the air outlet uneven distribution.
Further, second noise elimination part further includes the quieter material being filled on the inside of the air outlet.
Further, dynamic impeller cavity air outlet, the dynamic impeller cavity are equipped between the dynamic impeller cavity and the silencing cavity
Air outlet includes tangential grid.
Further, the silencing cavity includes noise reduction exocoel and noise reduction inner cavity.
Further, the radius of the noise reduction exocoel is greater than the radius of the noise reduction inner cavity.
Further, the noise reduction exocoel is located at the upstream of the noise reduction inner cavity.
Further, the oblique grid is arranged between the noise reduction exocoel and the noise reduction inner cavity.
Further, the tangential grid includes the gap formed between tangential panel and two neighboring tangential panel.
Further, the quantity in the gap is prime number.
The present invention also provides a kind of dust catcher, which includes the noise reduction structure of motor of the present invention.
The present invention can be realized following the utility model has the advantages that the first noise elimination part, second noise elimination part or both combine, can be effective
It eliminates the wind that air-flow generates and makes an uproar in ground；Dynamic impeller cavity air outlet is set as tangential grid, and number of gaps is prime number, can be effectively
The generation for preventing resonance, further eliminates noise.
Detailed description of the invention
Fig. 1 is the schematic diagram of first embodiment of the invention；
Fig. 2 is the cross-sectional view of first embodiment of the invention；
Fig. 3 is the silencer cover schematic diagram of first embodiment of the invention；
Fig. 4 is another visual angle schematic diagram of silencer cover of first embodiment of the invention；
Fig. 5 is the electric machine support schematic diagram of first embodiment of the invention；
Fig. 6 is the dismounting figure of the fan housing of first embodiment of the invention, electric machine support and silencer cover；
Fig. 7 is that air-flow of the invention moves towards schematic diagram；
Fig. 8 is the cross-sectional view of second embodiment of the invention；
Fig. 9 is the cross-sectional view of third embodiment of the invention.
Wherein, 1 is motor cover, and 11 be fan housing, and 12 be silencer cover, and 2 be air inlet, and 21 be air inlet grid, and 3 be air outlet, 4
To move impeller cavity, 41 be movable impeller component, and 5 be silencing cavity, and 6 be the first noise elimination part, and 61 be oblique panel, and 62 be narrow air duct, and 7 are
Second noise elimination part, 71 be Process, and 72 be quieter material, and 8 be electric machine support, and 81 be impeller cavity air outlet, and 82 be tangential lattice
Plate, 83 be gap, and 84 be outer rim, and 85 be inner edge, and 9 be motor.
Specific embodiment
First embodiment
As shown in Figure 1 and Figure 2, a kind of noise reduction structure of motor, the motor cover 1 including accommodating motor 9, in the motor cover 1 by
Air inlet 2 successively includes dynamic impeller cavity 4 and silencing cavity 5 to air outlet 3, is equipped with movable impeller component 41, institute in the dynamic impeller cavity 4
It states and is equipped with the first noise elimination part 6 and the second noise elimination part 7 in silencing cavity 5, first noise elimination part 6 includes oblique grid, is arranged in institute
Second noise elimination part 7 for stating 6 downstream of the first noise elimination part includes that the Process 71 of the air outlet 3 is arranged in and is arranged in institute
State the quieter material 72 of 3 inside of air outlet.In the present embodiment, motor cover 1 includes fan housing 11 and is sealingly engaged with fan housing 11
Silencer cover 12 moves impeller cavity 4 and is arranged in fan housing 11, and silencing cavity 5 is arranged in silencer cover 12, and air inlet 2 is arranged in fan housing 11
Lower end, the upper end of silencer cover 12 is arranged in air outlet 3.In this embodiment, the outside of air inlet 2 is additionally provided with air inlet grid 21.
As shown in Figure 3, Figure 4, be equipped with oblique grid in silencer cover 12, oblique grid along silencer cover 12 circle distribution, and
Silencing cavity 5 in silencer cover 12 is divided for silencer cover exocoel and silencer cover inner cavity, wherein the radius of silencer cover exocoel is greater than noise reduction
The radius of inner cavity is covered, and silencer cover exocoel is located at the upstream of silencer cover inner cavity.Air-flow from silencer cover exocoel by oblique grid into
Enter silencer cover inner cavity.Oblique grid includes the narrow air duct 62 formed between oblique panel 61 and two neighboring oblique panel 61, narrow
There is certain angle, the minimum widith in narrow air duct 62 is little between the extending direction in air duct 62 and the radial direction of silencer cover 12
In 3mm.Air-flow is combed into multiple stingy a fluid streams by narrow air duct 62, makes the power dissipation of air-flow in stingy a fluid stream, due to narrow wind
The minimum widith in road 62 is not more than 3mm, so stingy a fluid stream is relatively fine and closely woven, the energy of each stingy a fluid stream is relatively small, effectively
The generation of ground drop low wind noise.Simultaneously as being in certain between the extending direction in narrow air duct 62 and the radial direction of silencer cover 12
Angle, i.e., stingy a fluid stream tangentially pass through silencer cover, can be effectively reduced the frontal impact of air-flow radial direction, further decrease wind
It makes an uproar.
In some embodiments, the minimum widith in different narrow air ducts 62 is not exclusively etc..In other embodiments, different narrow wind
The minimum widith in road 62 is completely unequal；Further, in a further embodiment, the different narrow air duct 62 of any two is most
Small width is divided by not for integer, can reach better de-noising effect.In the present embodiment, the quantity in narrow air duct 62 is set as matter
Number can be effectively prevented the generation of resonance, and then enhance erasure effect.In the present embodiment, the windward side of oblique panel 61
For cambered surface, oblique panel 61 is become narrow gradually towards its leeward windward by it, i.e., oblique panel 61 is substantially in streamlined, Neng Gouyou
Effect reduces windage, enhances erasure effect.In the present embodiment, Process 71 is arranged at air outlet 3, the hole of Process 71
Diameter is not more than 3mm, and the aperture of Process 71 is not completely equivalent, and the depth of Process 71 is not completely equivalent, Process 71
Asymmetricly be distributed in the air outlet 3, and the distance between borehole of Process 71 is not completely equivalent, air-flow air outlet 3 via
Process 71 is spouting, can be effectively reduced wind and make an uproar.In other embodiments, the aperture of Process 71 not phase completely
Deng；In other embodiments, the hole depth of Process 71 is completely unequal；Further, in other embodiments, any two
The aperture of Process 71 is divided by not for integer, and it is not integer that the hole depth of any two Process 71, which is divided by,；In other implementations
In example, Process 71 is asymmetricly distributed in the air outlet 3, and its distance between borehole is completely unequal, is able to achieve more preferable
De-noising effect.Quieter material 72 is filled on the inside of air outlet 3, in the present embodiment, quieter material 72 is silencing cotton, is filled out
It fills between oblique grid and Process 71.
The noise reduction structure of motor of the present embodiment further includes as shown in Figure 5 is arranged between dynamic impeller cavity 4 and silencing cavity 5
Electric machine support 8, i.e. electric machine support 8 are mounted between fan housing 11 and silencer cover 12.Motor 9 is mounted on electric machine support 8, motor branch
Frame 8 further includes the dynamic impeller cavity air outlet 81 being arranged between its outer rim 84 and inner edge 85, and air-flow is only capable of going out by dynamic impeller cavity
81 driven impeller chamber 4 of air port enters silencing cavity 5.In the present embodiment, moving impeller cavity air outlet 81 includes tangential grid, tangential grid
Lattice include the gap 83 formed between tangential panel 82 and two neighboring tangential panel 82.The setting of tangential grid can reduce dynamic
The air resistance coefficient of impeller cavity 4 further decreases wind and makes an uproar.In the present embodiment, the quantity in gap 83 is and movable impeller component 41
The unequal prime number of blade quantity, can be effectively prevented resonance, further drop low wind noise.In the present embodiment, gap 83
Width be not completely equivalent.In a further embodiment, the width in gap 83 is completely unequal, can be realized better de-noising effect
Fruit.In a further embodiment, the width in any gap 83 and the minimum widith in any narrow air duct 62 are unequal.Further
Ground, in a further embodiment, the width in any gap 83 and the minimum widith in any narrow air duct 62 were both unequal, were also not present
Integral multiple relationship, i.e. gap 83 are a, and the width in narrow air duct 62 is b, then needing to meet a/b not is integer and b/a is not integer.
As shown in Figure 6, Figure 7, arrow indicates airflow direction in figure.Air-flow enters the movable vane wheel in fan housing 11 from air inlet 2
Chamber 4, after movable impeller component 41, then through the dynamic impeller cavity air outlet 81 on electric machine support 8, into disappearing in silencer cover 12
Sound chamber 5 passes sequentially through oblique grid and quieter material, finally spouting by the Process 71 of air outlet 3 is arranged in.
The present embodiment further includes a kind of dust catcher, and the head section of the dust catcher includes above-mentioned noise reduction structure of motor.
Second embodiment
As shown in figure 8, the noise reduction structure of motor of the present embodiment and the structure of first embodiment are essentially identical, difference is noise reduction
It is provided only with the first noise elimination part 6 in cover 12, that is, is provided only with oblique grid.
3rd embodiment
As shown in figure 9, the noise reduction structure of motor of the present embodiment and the structure of first embodiment are essentially identical, difference is noise reduction
It is provided only with the second noise elimination part 7 in cover 12, that is, be provided only with the Process 71 being arranged at air outlet 3 and is arranged in air outlet 3
The quieter material 72 of side.
It is pointed out that the technical concepts and features of above-mentioned preferred embodiment only to illustrate the invention, its object is to
Those skilled in the art can understand the contents of the present invention and implements accordingly, and protection of the invention can not be limited with this
Range.Any equivalent change or modification in accordance with the spirit of the invention should be covered by the protection scope of the present invention.
Claims (13)
1. a kind of noise reduction structure of motor, the motor cover of the accommodating motor including being equipped with air inlet and air outlet, in the motor cover
Cavity successively includes dynamic impeller cavity and silencing cavity by the air inlet to the air outlet, and the movable vane wheel is intracavitary to be equipped with movable vane wheel
Component, characterized in that the first noise elimination part and/or the second noise elimination part are equipped in the silencing cavity, first noise elimination part includes oblique
To grid, the oblique grid includes the narrow air duct formed between oblique panel and two neighboring oblique panel, the narrow air duct
Minimum widith be not more than 3mm；Second noise elimination part includes the Process that the air outlet is arranged in, the Process
Aperture be not completely equivalent or the depth of the Process is not completely equivalent or the Process is in the air outlet
Uneven distribution.
2. noise reduction structure of motor according to claim 1, characterized in that the incomplete phase of minimum widith in the narrow air duct
Deng.
3. noise reduction structure of motor according to claim 1, characterized in that the quantity in the narrow air duct is prime number.
4. noise reduction structure of motor according to claim 1, characterized in that the aperture of the Process is not more than 3mm.
5. noise reduction structure of motor according to claim 1, characterized in that second noise elimination part further include be filled in it is described
Quieter material on the inside of air outlet.
6. noise reduction structure of motor according to claim 1, characterized in that the silencing cavity includes in noise reduction exocoel and noise reduction
Chamber.
7. noise reduction structure of motor according to claim 6, characterized in that the radius of the noise reduction exocoel is greater than the noise reduction
The radius of inner cavity.
8. noise reduction structure of motor according to claim 6, characterized in that the noise reduction exocoel is located at the noise reduction inner cavity
Upstream.
9. noise reduction structure of motor according to claim 6, characterized in that the oblique grid is arranged in the noise reduction exocoel
Between the noise reduction inner cavity.
10. noise reduction structure of motor described in any one according to claim 1~9, characterized in that the dynamic impeller cavity and described
Dynamic impeller cavity air outlet is equipped between silencing cavity, the dynamic impeller cavity air outlet includes tangential grid.
11. noise reduction structure of motor according to claim 10, characterized in that the tangential grid includes tangential panel and phase
The gap formed between adjacent two tangential panels.
12. noise reduction structure of motor according to claim 11, characterized in that the quantity in the gap is prime number.
13. a kind of dust catcher, including noise reduction structure of motor as described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610648626.2A CN106073631B (en) | 2016-08-10 | 2016-08-10 | A kind of noise reduction structure of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610648626.2A CN106073631B (en) | 2016-08-10 | 2016-08-10 | A kind of noise reduction structure of motor |
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| Publication Number | Publication Date |
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| CN106073631A CN106073631A (en) | 2016-11-09 |
| CN106073631B true CN106073631B (en) | 2019-01-11 |
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| CN201610648626.2A Active CN106073631B (en) | 2016-08-10 | 2016-08-10 | A kind of noise reduction structure of motor |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119409B (en) * | 2016-11-28 | 2024-08-13 | 天佑电器（苏州）有限公司 | Suction fan motor |
| CN109247865A (en) * | 2017-07-14 | 2019-01-22 | 美的集团股份有限公司 | Dust catcher and its motor mould group |
| CN109247877B (en) | 2017-07-14 | 2020-09-04 | 美的集团股份有限公司 | Dust collector and motor module thereof |
| CN111166236A (en) * | 2018-11-09 | 2020-05-19 | 北京奇虎科技有限公司 | Sweeping robot, its gas circulation parts and air outlet structure |
| CN110051246B (en) * | 2019-04-09 | 2021-04-30 | 浙江理工大学 | Energy-saving noise-proof soybean milk maker cup and noise-proof method thereof |
| CN110652252A (en) * | 2019-10-31 | 2020-01-07 | 珠海格力电器股份有限公司 | Dust collector and air outlet filtering piece thereof |
| CN111520365B (en) | 2020-06-18 | 2024-04-19 | 追觅创新科技(苏州)有限公司 | A wind hood and a fan having the same |
| WO2021254463A1 (en) * | 2020-06-18 | 2021-12-23 | 追觅创新科技(苏州)有限公司 | Fan cover, fan, and cleaning device |
| CN111835130B (en) * | 2020-06-29 | 2021-12-10 | 添可智能科技有限公司 | Motor element and cleaning equipment |
| CN113541347B (en) * | 2021-07-15 | 2023-03-24 | 广东金霸智能科技股份有限公司 | Dust collector and dust collector motor assembly |
| CN116406996A (en) * | 2021-12-31 | 2023-07-11 | 苏州欧圣电气股份有限公司 | Vacuum cleaner |
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| CN2407708Y (en) * | 2000-01-12 | 2000-11-29 | 刘银桃 | Exhaust damper silencer device for vacuum cleaner |
| EP1325702A2 (en) * | 2002-01-03 | 2003-07-09 | Lg Electronics Inc. | Centrifugal blower for vacuum cleaner |
| CN1437300A (en) * | 2002-02-07 | 2003-08-20 | 德昌电机股份有限公司 | Blowing machine motor |
| CN201370537Y (en) * | 2009-02-17 | 2009-12-30 | 沈锦焕 | Dust collector with motor noise-eliminating cover |
| EP2436295A2 (en) * | 2010-09-29 | 2012-04-04 | BSH Bosch und Siemens Hausgeräte GmbH | Domestic appliance with motor damping |
| CN206151366U (en) * | 2016-08-10 | 2017-05-10 | 天佑电器（苏州）有限公司 | Structure of making an uproar falls in motor |
-
2016
- 2016-08-10 CN CN201610648626.2A patent/CN106073631B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2407708Y (en) * | 2000-01-12 | 2000-11-29 | 刘银桃 | Exhaust damper silencer device for vacuum cleaner |
| EP1325702A2 (en) * | 2002-01-03 | 2003-07-09 | Lg Electronics Inc. | Centrifugal blower for vacuum cleaner |
| CN1437300A (en) * | 2002-02-07 | 2003-08-20 | 德昌电机股份有限公司 | Blowing machine motor |
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| CN106073631A (en) | 2016-11-09 |
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