CN102457131A - Vibration-attenuating and noise-reducing structure of motor shell - Google Patents
Vibration-attenuating and noise-reducing structure of motor shell Download PDFInfo
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- CN102457131A CN102457131A CN2010102520337A CN201010252033A CN102457131A CN 102457131 A CN102457131 A CN 102457131A CN 2010102520337 A CN2010102520337 A CN 2010102520337A CN 201010252033 A CN201010252033 A CN 201010252033A CN 102457131 A CN102457131 A CN 102457131A
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Abstract
The invention discloses a vibration-attenuating and noise-reducing structure of a motor shell and belongs to the electric mechanical equipment of a dust collector. The vibration-attenuating and noise-reducing structure of the motor shell comprises an inner shell, an outer shell, an air outlet, an air inlet and a base, wherein a ventilation hole is formed in the inner shell, and a dust-collecting motor is accommodated in the inner shell; the outer shell is arranged at the periphery of the inner shell and keeps a certain distance away from the inner shell to form an air flow channel; the air outlet is formed on one side of an outer shell cover; the air inlet is formed at the top of the outer shell cover; and the base is used for supporting an outer shell body and an inner motor of the outer shell body. The vibration-attenuating and noise-reducing structure of the motor shell is characterized in that: tangential and longitudinal vibration-attenuating mechanisms are arranged between a bottom surface of the outer shell body and the base; and a noise-reducing cavity structure is formed between the air inlet at the top of the outer shell cover and a silencer. By adoption of the vibration-attenuating and noise-reducing structure, a motor and the motor shell can be well fixed and limited, and vibrations in the tangential direction and the longitudinal direction during operation of the motor are reduced; and the noise-reducing cavity structure is used as a resistant silencer, so that the speed of an air flow which enters the dust-collecting motor is reduced, noise is reduced, and the user satisfaction of products is improved.
Description
Technical field
The present invention relates to the electricapparatus equipment of dust catcher, specifically is a kind of vibration and noise reducing structure of motor casing.
Background technology
Dust catcher is a kind of cleaning and sanitary electric equipment device, is used for removing the dust in ground, carpet, wall, furniture, clothing and various slits.
Profile classification according to dust catcher can be divided into vertical type dust collector, horizontal (pot type) dust catcher and portable dust collector etc.
The dust catcher general structure comprises by the motor of dust collector that imports electric current generation suction, forms suction nozzle, the dust pick up hose of air path system, filter, and the dust collect plant of assembling inhalation (inhalatio).
Motor of dust collector at the generation negative-pressure sucking of inner of dust catcher body setting is placed in the motor box, and generates air and discharge air-flow.
Fig. 1 is the perspective view of prior art motor casing; As shown in Figure 1; In the inside of dust catcher body (not shown), dust sucting motor 1 is installed in (not shown) in the circular inner casing, and said inner casing is crossed and formed the air vent hole (not shown) that gathers on the perisporium of center of circle center line one side.Also be provided with four jiaos the square shell 2 that keeps the certain space distance with inner casing in the outside of inner casing and motor 1; Shell 2 is made up of shell body 3 and casing cover 4; Be formed with the circular slot (not shown) of settling airtight inner casing lower edge at shell body 3 inner bottom surfaces; Casing cover 4 center of top are formed with shell air inlet 5, and corresponding motor air inlet (not shown); Be provided with base 6a with shell body 3 correspondingly-shaped in shell body 3 bottoms.Sidewall in the shell body 3 is formed with up exhaust passage after diaphragm plate 7 parts are separated, and makes clean air be discharged to the outside of shell 2 through exhaust outlet 8.The exhaust passage is formed in the shell body 3 with exhaust outlet 8 opposite location.
In order to reduce the noise that gets into the motor air-flow, on the motor air inlet, be provided with the muffler (not shown) of noise-decreasing.
Situation in the motor of dust collector shell work of the above-mentioned prior art of brief description.Dust sucting motor 1 conducting electric current brings into operation; The negative pressure suction force that produces sucks the gas that contains foreign substances such as dust through the suction nozzle (not shown) of dust catcher body bottom surface, and the negative pressure pure air behind the cyclone dust removal of internal body, filtration, control of dust is discharged body at last.The air-flow that vacuum suction gets into the at first shell air inlet on casing cover 45 gets into, and gets into the motor air inlet through muffler.And through the air-flow that motor is discharged, enter in the shell body 3 through the air vent hole that gathers on the inner casing one side perisporium, and the up runner and the exhaust outlet 8 that form through diaphragm plate 7 one sides in the shell body 3 are discharged to the air of cleaning outside the dust catcher body.
But four corners after square shell body 3 fastens with casing cover 4 form the depressed part 9 of drift bolt respectively, and join together through bolt (not shown) and flat base 6a are rigid.Therefore, the vibration that produces during machine operation is passed to base 6a and shell 2 greatly, and to outdiffusion, vibration has produced very big noise.
In addition, the vacuum suction air communication is crossed casing cover 4 center of top shell air inlets 5 and is directly got into the motor air inlet through muffler, and stream is very short, and air-flow is rapid, also is one of big reason of noise.Therefore bigger noise brings puzzlement to the user, influences the credit worthiness of product.
Summary of the invention
The present invention is exactly the above-mentioned deficiency that exists in the prior art in order to solve, and a kind of vibration and noise reducing structure of motor casing is provided.
The present invention realizes by following technical scheme.
A kind of vibration and noise reducing structure of motor casing; Comprise that a side perisporium forms air vent hole and accommodates the inner casing of dust sucting motor; Muffler on the motor air inlet is arranged on the inner casing periphery and keeps a determining deviation with inner casing and be formed with the shell of gas channel, the air outlet that casing cover one side forms; The air inlet at casing cover top; The base of supporting housing body and interior dust sucting motor thereof, and between shell body bottom surface and base, be provided with tangential and longitudinal damping mechanism, be formed with the noise reduction cavity structure between the air inlet at casing cover top and the muffler.
The present invention of design like this owing between shell body bottom surface and base, be provided with damper mechanism, not only plays well fixing and position-limiting action to motor and motor casing, and tangential and the vibration that vertically produces when having reduced motor rotation; And between the air inlet at casing cover top and muffler, be formed with the noise reduction cavity structure, and promptly become the resistant noise-reducing device, therefore, slowed down the air velocity that gets into dust sucting motor, reduced noise, improved the credit worthiness of user to product.
Description of drawings
Fig. 1 is the perspective view of prior art motor casing;
Fig. 2 is the perspective view that the present invention partly cuts open;
Fig. 3 is a vertical profile structural representation of the present invention;
Fig. 4 is that the part of casing cover of the present invention is cut structural representation open;
Fig. 5 is the three-dimensional decomposition texture sketch map of damping of the present invention;
Fig. 6 is the top plan view structural representation of shell body of the present invention;
Fig. 7 is the vertical profile plane decomposition texture sketch map of damping of the present invention;
Fig. 8 is a decomposition texture sketch map of the present invention;
Fig. 9 is a low frequency noise spectrum peak map;
Figure 10 is a high frequency noise frequency spectrum map.
Among the figure: 1. motor 2. shells
3. shell body 4. casing covers
5. shell air inlet 6a.6b. base
7. diaphragm plate 8. exhaust outlets
9. depressed part 10. air vent holes
11. inner casing 12. motor air inlets
13. muffler 14. protuberances
15. motor liner 16. rubber blankets
17. damper mechanism 18. cavity structures
19. axial trough 20. end differences
21. vibration damping groove 22. rubber columns
23. bolt column 24. convexes
25. scarfing slot 26. screw holes
27. through hole 28. transverse frame plates
29. slot 30. is inserted projection.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed explanation.
Go up tops at horizontal dust collector body (not shown) and be provided with loam cake handle, loam cake button and coil winder press key, the rear end of loam cake is connected through concentric hinge with body through the turnover arm.Press the loam cake button and then open loam cake, dust bucket is installed; Fasten loam cake, the motor air inlet that is provided with on the air outlet that then makes dust bucket and the body next door is connected, and After-Body is provided with the filter to the discharge of the pure air after the dedusting.The rear portion, next door also forms the back space that air is discharged through filter after electric components such as being provided with winder, dust sucting motor and the dedusting.
The vibration and noise reducing structure of following motor casing according to the invention; Comprise that a side perisporium forms air vent hole 10 and holds the inner casing 11 of dust sucting motor 1, in order to reduce the air inlet noise, the muffler 13 that on motor air inlet 12, is provided with; Be arranged on inner casing 11 peripheries and keep a determining deviation with inner casing and be formed with the shell 2 of gas channel; The air outlet 8 that casing cover 4 one side lower edges form, the air inlet 5 at casing cover 4 tops, the base 6b of supporting housing body 3 and interior dust sucting motor thereof; And between shell body 3 bottom surfaces and base 6b, be provided with the damper mechanism 17 of tangential and longitudinal damping, be formed with noise reduction cavity structure 18 between the air inlet 5 at casing cover 4 tops and the muffler 13.
Four corners after square shell body 3 fastens with casing cover 4 form the depressed part 9 of drift bolt respectively, and therefore, after shell body 3 fastened with casing cover 4, each corner bolt (not shown) of respectively hanging oneself was combined as a whole.
The vibration and noise reducing structure of said motor casing, its damper mechanism 17 comprise that shell body 3 bottom surfaces form the motor liner 15 of the protuberance 14 interior setting-ins of evagination; Be provided with respectively partiting polarization rubber pad 16 between shell body 3 bottom surfaces and the base 6b with the two positioning combination.
The vibration and noise reducing structure of said motor casing; The motor liner 15 of setting-in is square in its protuberance 14; Motor liner 15 end faces are formed with the motor axial trough 19 and slotting projection 30 of circular depressed, and motor liner 15 bottom periphery are formed with the end difference 20 that is placed in 14 li of protuberances.The bottom of said slotting projection 30 diagonal angle settings and embedding dust sucting motor 1, thus motor 1 is combined firmly with motor liner 15.
The vibration and noise reducing structure of said motor casing; Its partiting polarization rubber pad 16 is rounded; End face is formed with end difference 20 shapes, the corresponding vibration damping groove 21 of size with motor liner 15, and partiting polarization rubber pad 16 bottom surface peripheries are combined with the vibration damping support rubber post 22 by 3 settings of equilateral triangle.
The vibration and noise reducing structure of said motor casing; Four jiaos are formed with the bolt column 23 that combines with shell body 3 bottom surfaces respectively on its base 6b end face, are formed with the scarfing slot of rabbeting with the rubber column 22 corresponding location of rubber blanket 16 bottom surfaces 25 on the convex 24 that base 6b end face middle part forms.Thereby guarantee the vibration realizing tangential of motor generation and the effect of longitudinal damping.
In the present invention, the screw hole 26 that forms respectively of shell body 3 bottom surfaces be with base 6b end face on four jiaos of bolt columns that form respectively 23 support and combine.
The vibration and noise reducing structure of said motor casing, its noise reduction cavity structure 18 are integrally formed tubular structures that hang with one heart between casing cover 4 inner top air inlets 5 and motor air inlet 12 and muffler 13.Be that noise reduction cavity structure 18 is that the space that makes full use of between casing cover 4 inner top air inlets 5 and the motor air inlet 12 forms.
The vibration and noise reducing structure of said motor casing, by-level is formed with the transverse frame plate 28 of through hole 27 in its noise reduction cavity structure 18, and the space diameter of transverse frame plate more than 28 is greater than the diameter of air inlet 5 and through hole 27.The present invention of above-mentioned design, the through hole 27 on the air inlet 5 at its casing cover 4 tops, motor air inlet 12 and the transverse frame plate 28 is a concentric structure.
Brief description has the working condition of the motor casing of characteristic of the present invention.
Dust catcher body conducting electric current; Dust sucting motor 1 brings into operation; The negative pressure suction force that dust sucting motor 1 produces sucks the gas that contains foreign substances such as dust through the suction nozzle (not shown) of dust catcher body bottom surface, and pending behind the cyclone dust collector of internal body, filter, control of dust.And clean air is discharged body at last.The air-flow that the process vacuum suction gets into the at first shell air inlet on casing cover 45 gets in the shells 2; At first transverse frame plate more than 28 spacious relatively 18 li pressure of noise reduction cavity structure die-off; Form the resistant noise-reducing effect, slowed down air velocity, reduce the noise that gets in the shell 2.The through hole 27 of air-flow on transverse frame plate 28 gets into the muffler 13 of transverse frame plate 28 belows, gets into motor air inlet 12 again, and noise generated by air flow is further reduced.
And the air-flow of discharging through dust sucting motor 1; Air vent hole 10 through gathering on the inner casing 11 1 side perisporiums enters in the shell body 3; Because the shutoff of diaphragm plate 7 is arranged at inner casing 11 tops that are furnished with air vent hole 10 1 sides, air-flow must be at the lower floor's runner in the shell body 3, and process shell body 3 interior diaphragm plates 7 are the formed up runner of shutoff opposite side not; Detour upper strata runner to the casing cover on diaphragm plate 7 tops 4 finally is discharged to outside the dust catcher body through the air of exhaust outlet 8 with cleaning.
In addition; Because the damper mechanism 17 that forms in shell body 3 bottoms; Make the vibration of motor generation in service; Be placed in 21 li of the vibration damping grooves of rubber blanket 16 end face correspondingly-shaped through end difference 20, not only play matching and fixing and position-limiting action, and can reduce the rotation of tangential motor liner 15 bottom surfaces; In addition, because partiting polarization rubber pad 16 supported at three point dust sucting motors 1 have cushioned the extensional vibration of motor and shell thereof.
Fig. 9 is a low frequency noise spectrum peak map; Figure 10 is a high frequency noise frequency spectrum map.
Can find out that by Frequency spectrum ratio structure after the improvement can be good at suppressing the low frequency peak noise that is caused by vibration, and wide band high-frequency noise.Through test, improving front motor shell noise is 68.9dB, and improvement of the present invention back noise is 65.05dB, and noise reduction is obvious.
Claims (7)
1. the vibration and noise reducing structure of a motor casing; Comprise that a side perisporium forms air vent hole (10) and accommodates the inner casing (11) of dust sucting motor (1); Muffler (13) on the motor air inlet (12) is arranged on inner casing (11) periphery and keeps a determining deviation with inner casing and be formed with the shell (2) of gas channel, the air outlet (8) that casing cover (4) one sides form; The air inlet (5) at casing cover (4) top; The base (6b) of supporting housing body (3) and interior dust sucting motor thereof is characterized in that: be provided with tangential and longitudinal damping mechanism (17) between shell body (3) bottom surface and the base (6b), be formed with noise reduction cavity structure (18) between the air inlet (5) at casing cover (4) top and the muffler (13).
2. according to the vibration and noise reducing structure of the said motor casing of claim 1, it is characterized in that: said damper mechanism (17) comprises that shell body (3) bottom surface forms the motor liner (15) of the interior setting-in of protuberance (14) of evagination; Be provided with respectively partiting polarization rubber pad (16) between shell body (3) bottom surface and the base (6b) with the two positioning combination.
3. according to the vibration and noise reducing structure of the said motor casing of claim 2; It is characterized in that: the motor liner (15) of the interior setting-in of protuberance (14) is square; Motor liner (15) end face is formed with the motor axial trough (19) and the slotting projection (30) of circular depressed, and motor liner (15) bottom periphery is formed with the end difference (20) that is placed in protuberance (14) lining.
4. according to the vibration and noise reducing structure of the said motor casing of claim 2; It is characterized in that: partiting polarization rubber pad (16) is rounded; And end face is formed with and shell (3) bottom surface protuberance (13) shape, the corresponding vibration damping groove (21) of size, and partiting polarization rubber pad (16) bottom surface periphery is combined with the rubber column (22) that is provided with by equilateral triangle.
5. according to the vibration and noise reducing structure of claim 2 or 4 said motor casings; It is characterized in that: four jiaos are formed with the bolt column (23) that combines with shell body (3) respectively on base (6b) end face, are formed with the scarfing slot of rabbeting with the corresponding location of rubber column (22) of rubber blanket (16) bottom surface (25) on the convex (24) that base (6b) end face middle part forms.
6. according to the vibration and noise reducing structure of the said motor casing of claim 1, it is characterized in that: noise reduction cavity structure (18) is the integrally formed tubular structure that hangs with one heart between casing cover (4) inner top air inlet (5) and motor air inlet (12) and muffler (13).
7. according to the vibration and noise reducing structure of the said motor casing of claim 6; It is characterized in that: said cavity structure (18) bosom level is formed with the transverse frame plate (28) of through hole (27), and the space diameter more than the transverse frame plate (28) is greater than the diameter of air inlet (5) and through hole (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102520337A CN102457131A (en) | 2010-10-29 | 2010-10-29 | Vibration-attenuating and noise-reducing structure of motor shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102520337A CN102457131A (en) | 2010-10-29 | 2010-10-29 | Vibration-attenuating and noise-reducing structure of motor shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102457131A true CN102457131A (en) | 2012-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102520337A Pending CN102457131A (en) | 2010-10-29 | 2010-10-29 | Vibration-attenuating and noise-reducing structure of motor shell |
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| CN (1) | CN102457131A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377278A (en) * | 2010-08-12 | 2012-03-14 | 乐金电子(天津)电器有限公司 | Motor casing with layered long flow channels |
| CN103595175A (en) * | 2012-08-17 | 2014-02-19 | 乐金电子(天津)电器有限公司 | Intelligent dust collector motor damping washer and intelligent dust collector |
| CN110236449A (en) * | 2019-07-22 | 2019-09-17 | 珠海格力电器股份有限公司 | Vibration damping piece, equipment with vibration damping piece and dust collector |
| CN110477807A (en) * | 2019-09-17 | 2019-11-22 | 珠海格力电器股份有限公司 | Vibration absorber and dust catcher with it |
| CN112072821A (en) * | 2020-09-03 | 2020-12-11 | 李楠楠 | Voice-operated direct-current brushless motor |
-
2010
- 2010-10-29 CN CN2010102520337A patent/CN102457131A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377278A (en) * | 2010-08-12 | 2012-03-14 | 乐金电子(天津)电器有限公司 | Motor casing with layered long flow channels |
| CN102377278B (en) * | 2010-08-12 | 2015-06-10 | 乐金电子(天津)电器有限公司 | Motor casing with layered long flow channels |
| CN103595175A (en) * | 2012-08-17 | 2014-02-19 | 乐金电子(天津)电器有限公司 | Intelligent dust collector motor damping washer and intelligent dust collector |
| CN110236449A (en) * | 2019-07-22 | 2019-09-17 | 珠海格力电器股份有限公司 | Vibration damping piece, equipment with vibration damping piece and dust collector |
| CN110477807A (en) * | 2019-09-17 | 2019-11-22 | 珠海格力电器股份有限公司 | Vibration absorber and dust catcher with it |
| CN112072821A (en) * | 2020-09-03 | 2020-12-11 | 李楠楠 | Voice-operated direct-current brushless motor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |