CN102377278B - Motor casing with layered long flow channels - Google Patents
Motor casing with layered long flow channels Download PDFInfo
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- CN102377278B CN102377278B CN201010252034.1A CN201010252034A CN102377278B CN 102377278 B CN102377278 B CN 102377278B CN 201010252034 A CN201010252034 A CN 201010252034A CN 102377278 B CN102377278 B CN 102377278B
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- casing
- cover
- motor
- flow channels
- compartition
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Abstract
The invention discloses a motor casing with layered long flow channels, belonging to electrical mechanical equipment of a vacuum cleaner. The motor casing with layered long flow channels comprises a built-in vacuum motor, an inner casing with air holes, a square outer casing and an outer casing cover, wherein the inner casing is formed on one side; the square outer casing is arranged outside the inner casing and separated from the inner casing for a certain spatial distance; an air inlet is formed at the top of the outer casing cover and an air outlet is formed on one side of the outer casing cover; a lower-layer flow channel and an upper-layer flow channel are formed respectively in the outer casing and in the outer casing cover by a lateral partition; an up channel is formed on the lateral partition opposite to the air outlet in direction; an air inlet channel is formed between the air inlet of the outer casing and the air inlet of the motor; and a space dividing cover on which muffling holes are formed is arranged in the upper-layer flow channel on the periphery of the motor in the outer casing cover. Because the motor casing with layered long flow channels is designed such, based on the original double-layer motor casing with a long flow channel, the limited space in the upper-layer flow channel is fully used, and the space dividing cover with muffling holes is additionally arranged, thereby further increasing the length of the upper-layer flow channel and further reducing noise.
Description
Technical field
The present invention relates to the electricapparatus equipment of dust catcher, specifically a kind of motor casing with layered long flow channels.
Background technology
Dust catcher is a kind of cleaning and sanitary electric equipment device, for removing the dust in ground, carpet, wall, furniture, clothing and various gap.
According to the form class of dust catcher, vertical type dust collector, horizontal (pot type) dust catcher and portable dust collector etc. can be divided into.
Dust catcher general structure comprises by the motor of dust collector importing electric current generation suction, forms suction nozzle, the dust pick up hose of air path system, filtering separation device, and assembles the dust collect plant of inhalation (inhalatio).
Be placed in motor box at the motor of dust collector of the generation negative-pressure sucking of inner of dust catcher body setting, and generate air discharge air-flow.
Fig. 1 is the perspective view of prior art motor casing; Fig. 2 is the vertical profile structural representation of prior art motor casing; Fig. 3 is the decomposition texture schematic diagram of prior art motor casing.
In the inside of dust catcher body (not shown), as Figure 1-3, dust sucting motor 1 is arranged on inner casing 2 li, and the center line side perisporium of inner casing 2 forms uniform air vent hole 3.The outside of inner casing 2 is also provided with the corner square shell 4 keeping with it certain space distance, shell 4 is combined into by shell body 5 and casing cover 6, casing cover 6 center of top on shell body 5 is formed with housing inlet 7, is provided with the base 8 of correspondingly-shaped bottom shell body 5.Dividing plate 9 in shell 4 forms upper strata runner and lower floor's runner in the enclosure.A sidewall in shell body 5 is formed with up exhaust passage through diaphragm plate 9, and exhaust passage is formed in in the rightabout shell 4 of exhaust outlet 10 (not shown), and through exhaust outlet 10, the air of cleaning is discharged to the outside of shell 4.
In order to make air-flow enter after shell 4 through housing inlet 7, concentrating and entering motor air inlet 11, be formed with around the air inlet 7 of casing cover 6 inner top lead to motor air inlet 11 hang tubular inlet channel 24.The diameter of inlet channel 24 is greater than the diameter of housing inlet 7 and motor air inlet 11 respectively.In order to make the pneumatic noise entering motor air inlet 11 reduce, usually muffler 12 is set on motor air inlet 11.
Four corners perpendicular to base 8 on shell body 5 and casing cover 6 form depressed part 13 respectively, and shell body 5 and casing cover 6 are combined as a whole by bolt (not shown) through recessed step 14a, 14b.
In order to strengthen the steadiness of motor location in motor casing, especially the longitudinal direction and tangential vibrations that produce when dust sucting motor 1 operates is reduced, the protuberance 15 outwardly formed in shell body 5 inner bottom surface depression, shell body 5 inner bottom surface recess is installed the conglobate axial trough of end face shape 16 and is projected upwards the square motor liner 18 of slotting projection 17.
Be provided with between shell body 5 bottom surface and base 8 respectively with the partiting polarization rubber pad 19 of the two positioning combination, round rubber pad 19 end face forms the Silencing groove 20 that combine corresponding to shell body 5 bottom surface protuberance 17, and rubber blanket 19 bottom surface forms the rubber column 22 that intercalation groove 21 bikini is combined on base 8 end face.
Screw pole 23 and shell body 5 bottom surface that base 8 end face four angles are formed respectively are combined as a whole.
Below the situation in the motor of dust collector shell work of above-mentioned prior art is described.Dust sucting motor 1 On current brings into operation, the suction nozzle (not shown) of negative pressure suction force through dust catcher body bottom surface produced sucks the gas containing foreign substances such as dusts, and the negative pressure pure air after the cyclone dust removal of internal body, filtration, control of dust finally discharges body.The housing inlet 7 of the air-flow that vacuum suction enters first on casing cover 6 enters shell 4, and enters motor air inlet 11 by inlet channel 24, muffler 12.And through motor discharge air-flow, the lower floor's runner in shell body 5 is entered into by uniform air vent hole 3 on the perisporium of inner casing 2 side, and arrive in the upper strata runner in casing cover 6 by the up exhaust passage that diaphragm plate 9 side, shell body 5 top is formed, the periphery of pile warp inlet channel 24, and the exhaust outlet 8 by being formed with up exhaust passage rightabout, the air of cleaning is discharged to outside dust catcher body.
Although, motor casing of the prior art has been provided with relatively long double-layer channel, and obtain good noise reduction, but, still certain utilized space is there is in the casing cover 6 particularly forming upper strata runner in motor casing, make full use of this segment space and increase runner, can better realize noise reduction object.
Summary of the invention
The present invention is exactly to solve the motor casing noise reduction problem existed in prior art, and provides a kind of motor casing with layered long flow channels.
The present invention realizes by following technical scheme.
A kind of motor casing with layered long flow channels, comprise built-in dust sucting motor and be formed with the inner casing of air vent hole in side, be arranged on inner casing outside and the casing cover that air inlet is formed on the square shell body of interval certain space distance and top, a side forms exhaust outlet, in shell body, lower floor's runner is formed respectively through diaphragm plate, upper strata runner is formed in casing cover, with the data feedback channel that formed on the rightabout diaphragm plate of exhaust outlet, and the inlet channel formed between housing inlet and motor air inlet; And in casing cover motor periphery upper strata runner in be provided with and form the compartition cover of bloop.
The present invention of such design, flow on the basis of double-layer electric casing in original length, make full use of the confined space of upper strata runner, add the compartition cover being formed with bloop, not only increase the flow channel length of upper strata runner further, further, again utilize bloop noise reduction, thus reach the object reducing noise further.
Accompanying drawing explanation
Fig. 1 is the perspective view of prior art motor casing;
Fig. 2 is the vertical profile structural representation of prior art motor casing;
Fig. 3 is the decomposition texture schematic diagram of prior art motor casing;
Fig. 4 is the perspective view of motor casing cross-section of the present invention;
Fig. 5 is the perspective view of compartition cover in the present invention;
Fig. 6 is the perspective view of another embodiment of compartition cover in the present invention;
Fig. 7 is vertical profile structural representation of the present invention;
Fig. 8 is decomposition texture schematic diagram of the present invention;
Fig. 9 is the decomposition texture schematic diagram of another embodiment of the present invention;
Figure 10 is low frequency noise spectrum peak contrast figure;
Figure 11 is high frequency noise frequency spectrum contrast figure.
In figure: 1. motor 2. inner casing
3. air vent hole 4. shell
5. shell body 6. casing cover
7. housing inlet 8. base
9. diaphragm plate 10. exhaust outlet
11. motor air inlet 12. mufflers
13. depressed part 14a.14b. recessed step
15. protuberance 16. axial troughs
17. insert projection 18. motor liner
19. rubber blanket 20. Silencing groove
21. intercalation groove 22. rubber columns
23. screw pole 24. inlet channels
25a.25b. bloop 26a.26b. splits cover
27. central circular hole 28. opening port
29a.29b. end face 30. annular groove
31. legs.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be described in detail.
Fig. 7 is vertical profile structural representation of the present invention; Fig. 8 is decomposition texture schematic diagram of the present invention; Fig. 9 is the decomposition texture schematic diagram of another embodiment of the present invention.
In the inside of horizontal dust collector body (not shown), dust sucting motor 1 is arranged on inner casing 2 li, and crossing on the perisporium of center line side, the center of circle of inner casing 2 forms uniform air vent hole 3.The outside of inner casing 2 is also provided with the corner square shell 4 keeping with it certain space distance, and shell 4 is combined into by shell body 5 and casing cover 6.Four corners perpendicular to base 8 on shell body 5 and casing cover 6 form depressed part 13 respectively, on recessed step 14a, 14b, shell body 5 and casing cover 6 are combined as a whole by bolt (not shown).
Casing cover 6 center of top on shell body 5 is formed with housing inlet 7, is provided with the base 8 of correspondingly-shaped bottom shell body 5.Dividing plate 9 in shell 4 forms upper strata runner and lower floor's runner in the enclosure.A sidewall in shell body 5 is formed with up exhaust passage through diaphragm plate 9, exhaust passage is formed in in the rightabout shell 4 of exhaust outlet 10 (not shown), and through exhaust outlet 10, the air of cleaning is discharged shell 4, be finally discharged to the outside of dust catcher body.
The air-flow be separated to make dedusting enters after shell 4 through housing inlet 7, concentrates and enters motor air inlet 11, be formed with around the air inlet 7 of casing cover 6 inner top lead to motor air inlet 11 hang tubular inlet channel 24.The diameter of inlet channel 24 is greater than the diameter of housing inlet 7 and motor air inlet 11 respectively.In order to make the pneumatic noise entering motor air inlet 11 reduce, usually on motor air inlet 11, be also provided with muffler 12.
In order to strengthen the steadiness of motor location in motor casing, especially the longitudinal direction and tangential vibrations that produce when dust sucting motor 1 operates is reduced, the protuberance 15 outwardly formed in shell body 5 inner bottom surface depression, shell body 5 inner bottom surface recess is installed the conglobate axial trough of end face shape 16 and is projected upwards the square motor liner 18 of slotting projection 17.
Be provided with between shell body 5 bottom surface and base 8 respectively with the partiting polarization rubber pad 19 of the two positioning combination, round rubber pad 19 end face forms the Silencing groove 20 that combine corresponding to shell body 5 bottom surface protuberance 17, and rubber blanket 19 bottom surface forms the rubber column 22 that intercalation groove 21 bikini is combined on base 8 end face.
Screw pole 23 and shell body 5 bottom surface that base 8 end face four angles are formed respectively are combined as a whole.
As Fig. 5, shown in Fig. 7, a kind of motor casing with layered long flow channels, comprise built-in dust sucting motor 1 and be formed with the inner casing 2 of air vent hole 3 in side, housing inlet 7 is formed on the square shell body 5 and the top that are arranged on the outside also interval certain space distance of inner casing 2, one side forms the casing cover 6 of exhaust outlet 10, in shell body 5, lower floor's runner is formed respectively through diaphragm plate 9, upper strata runner is formed in casing cover 6, with the data feedback channel that formed on the rightabout diaphragm plate 9 of exhaust outlet 10, with the inlet channel 24 formed between housing inlet 7 and motor air inlet 11, the compartition cover 26a forming bloop 25a is provided with in the upper strata runner being characterized in casing cover 6 li of motor 1 peripheries.
Fig. 6 is the perspective view of a compartition cover embodiment in the present invention; As shown in the figure,
Described motor casing with layered long flow channels, its compartition cover 26a bottom surface opened, fusiformis end face 29a central authorities form the central circular hole 27 appearing motor air inlet 11, uniform bloop 25a on the end face 29a of central circular hole 27 periphery, compartition cover 26a length direction respective side leg 31a forms planar open mouth 28, and is closed by casing cover 6 inwall that exhaust outlet 10 is adjacent.
Described motor casing with layered long flow channels, bloop 25 uniform on its end face 29a is with the outside radial arrangement in the center of circle of central circular hole 27.
Described motor casing with layered long flow channels, the periphery of its compartition cover 26a end face central circular hole 27 is formed and docks annular groove 30 with inlet channel 24 end mouth.Air-flow in the air-flow of upper strata runner and inlet channel 24 is separated completely.
Described motor casing with layered long flow channels, its compartition cover fusiformis end face 29a major axis is consistent with the corresponding inwall spacing of casing cover 6 liang.
Fig. 4 is the perspective view of motor casing cross-section of the present invention; Fig. 5 is the perspective view of compartition cover in the present invention.
As shown in the figure, described motor casing with layered long flow channels, its compartition cover 26b bottom surface opened, square fillet end face 29b central authorities form the central circular hole 27 appearing motor air inlet 11, uniform bloop 25a on the end face of central circular hole periphery, compartition cover 26b respective side leg 31b forms the bloop 25b of dot matrix distribution.
Described motor casing with layered long flow channels, in compartition cover leg 31b both sides adjacent with exhaust outlet 10 casing cover 6 of its formation dot matrix distribution bloop 25b, an ancient piece of jade, round, flat and with a hole in its centre keeps a determining deviation.For the air-flow of upper strata runner provides the flowing space.
Below the present invention's situation is at work described.Dust sucting motor 1 On current brings into operation, the suction nozzle (not shown) of negative pressure suction force through dust catcher body bottom surface produced sucks the gas containing foreign substances such as dusts, and the negative pressure pure air after the cyclone dust removal of internal body, filtration, control of dust finally discharges body.The housing inlet 7 of the air-flow that vacuum suction enters first on casing cover 6 enters shell 4, when entering motor air inlet 11 by inlet channel 24, is abated the noise by muffler 12.And through the air-flow that dust sucting motor 1 is discharged, enter into the lower floor's runner in shell body 5 by uniform air vent hole 3 on the perisporium of inner casing 2 side, and arrived in the upper strata runner in casing cover 6 by the up exhaust passage that diaphragm plate 9 side, shell body 5 top is formed.
With reference to Fig. 4, Fig. 7, Fig. 8, enter air-flow in the runner of upper strata by being formed before the contrary exhaust outlet in direction 10 discharges with up exhaust passage, have to pass through the compartition cover 26b be arranged in the runner of upper strata, namely could discharge from exhaust outlet 10 through the leg 31b of compartition cover 26b and square fillet end face 29b, bloop 25a, 25b on leg 31b and end face 29b slacken the noise of air-flow in the runner of upper strata.
Finally, by the exhaust outlet 8 formed with up exhaust passage rightabout, the air of cleaning is discharged to outside motor casing 4 and even dust catcher body.
With reference to Fig. 6, Fig. 9.Enter air-flow in the runner of upper strata direction contrary exhaust outlet (not shown) discharges by being formed with up exhaust passage, but, leg 31b due to fusiformis end face 29b two ends is formed as planar open mouth 28 and is combined with casing cover 6 inwall of exhaust outlet 10 both sides, therefore, air-flow has to pass through the compartition cover 26a be arranged in the runner of upper strata, and the bloop 25a namely more on compartition cover 26a and end face 29b thereof could discharge from exhaust outlet (not shown).Like this, not only make upper strata runner lengthen, and the bloop 25a on leg 31a and end face 29b slacken the noise of air-flow in the runner of upper strata.
Finally, by the exhaust outlet 10 formed with up exhaust passage rightabout, the air of cleaning is discharged to outside motor casing 4 and even dust catcher body.
Figure 10 is low frequency noise spectrum peak contrast figure; Figure 11 is high frequency noise frequency spectrum contrast figure.
Comparatively can find out that the structure after improvement has certain reduction to low frequency noise by Frequency spectrum ratio, this is because the orifice plate on passage reduces air-flow velocity to a certain extent, be that low frequency noise produces decay.
After tested, improving front motor shell noise is 66.3dB, and after improvement of the present invention, noise is 65.55dB, and noise reduction is obvious.
Claims (7)
1. a motor casing with layered long flow channels, comprise built-in dust sucting motor (1) and be formed with the inner casing (2) of air vent hole (3) in side, air inlet (7) is formed on the square shell body (5) and the top that are arranged on the outside also interval certain space distance of inner casing (2), one side forms the casing cover (6) of exhaust outlet (10), in shell body (5), lower floor's runner is formed respectively through diaphragm plate (9), upper strata runner is formed in casing cover (6), at the data feedback channel that formed upper with exhaust outlet (10) rightabout diaphragm plate (9), and the inlet channel (24) formed between casing cover air inlet (7) and motor air inlet (11), it is characterized in that: in the upper strata runner of casing cover (6) inner motor (1) periphery, be provided with the compartition cover forming bloop.
2. according to motor casing with layered long flow channels described in claim 1, it is characterized in that compartition cover (26a) bottom surface opened, fusiformis end face (29a) central authorities form the central circular hole (27) appearing motor air inlet (11), the upper uniform bloop (25a) of end face (29a) of central circular hole (27) periphery, compartition cover (26a) length direction respective side leg (31a) forms planar open mouth (28), and is closed by casing cover (6) inwall that exhaust outlet (10) is adjacent.
3., according to motor casing with layered long flow channels described in claim 2, it is characterized in that the upper uniform bloop of end face (29a) is with the outside radial arrangement in the center of circle of central circular hole (27).
4. motor casing with layered long flow channels according to claim 1 or 2, the periphery that it is characterized in that compartition cover (26a) end face central circular hole (27) is formed and docks annular groove (30) with inlet channel (24) end mouth.
5. motor casing with layered long flow channels according to claim 1 or 2, is characterized in that compartition cover fusiformis end face (29a) major axis is consistent with the corresponding inwall spacing of casing cover (6) two.
6. according to motor casing with layered long flow channels described in claim 1, it is characterized in that compartition cover (26b) bottom surface opened, square fillet end face (29b) central authorities form the central circular hole (27) appearing motor air inlet (11), uniform bloop (25a) on the end face of central circular hole periphery, compartition cover (26b) respective side leg (31b) forms the bloop (25b) of dot matrix distribution.
7., according to motor casing with layered long flow channels described in claim 1, it is characterized in that the compartition cover leg (31b) forming dot matrix distribution bloop (25b) keeps a determining deviation with exhaust outlet (10) adjacent both sides casing cover (6) interior ancient piece of jade, round, flat and with a hole in its centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010252034.1A CN102377278B (en) | 2010-08-12 | 2010-08-12 | Motor casing with layered long flow channels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010252034.1A CN102377278B (en) | 2010-08-12 | 2010-08-12 | Motor casing with layered long flow channels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102377278A CN102377278A (en) | 2012-03-14 |
| CN102377278B true CN102377278B (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010252034.1A Expired - Fee Related CN102377278B (en) | 2010-08-12 | 2010-08-12 | Motor casing with layered long flow channels |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381080A (en) * | 2012-05-02 | 2013-11-06 | 乐金电子(天津)电器有限公司 | Low-noise motor box of dust collector |
| CN104771114B (en) * | 2014-01-10 | 2017-05-10 | 天佑电器（苏州）有限公司 | Dust collector |
| CN104760869A (en) * | 2015-04-07 | 2015-07-08 | 李立群 | Lifter damping silent engine |
| CN109247877B (en) * | 2017-07-14 | 2020-09-04 | 美的集团股份有限公司 | Dust collector and motor module thereof |
| CN109951939B (en) * | 2019-04-24 | 2024-03-08 | 伟通工业设备（江苏）有限公司 | Multilayer kuppe and UV solidification antifog dust collector for coating line thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196195A (en) * | 2006-12-06 | 2008-06-11 | 三星光州电子株式会社 | Fan motor case assembly for noise reduction |
| CN201370537Y (en) * | 2009-02-17 | 2009-12-30 | 沈锦焕 | Dust collector with motor noise-eliminating cover |
| CN101721181A (en) * | 2008-10-31 | 2010-06-09 | 乐金电子(天津)电器有限公司 | Motor exhausting and denoising structure of dust catcher |
| CN102457131A (en) * | 2010-10-29 | 2012-05-16 | 乐金电子(天津)电器有限公司 | Vibration-attenuating and noise-reducing structure of motor shell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100003762A (en) * | 2008-07-02 | 2010-01-12 | 엘지전자 주식회사 | Dust separation apparatus of vacuum cleamer |
-
2010
- 2010-08-12 CN CN201010252034.1A patent/CN102377278B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196195A (en) * | 2006-12-06 | 2008-06-11 | 三星光州电子株式会社 | Fan motor case assembly for noise reduction |
| CN101721181A (en) * | 2008-10-31 | 2010-06-09 | 乐金电子(天津)电器有限公司 | Motor exhausting and denoising structure of dust catcher |
| CN201370537Y (en) * | 2009-02-17 | 2009-12-30 | 沈锦焕 | Dust collector with motor noise-eliminating cover |
| CN102457131A (en) * | 2010-10-29 | 2012-05-16 | 乐金电子(天津)电器有限公司 | Vibration-attenuating and noise-reducing structure of motor shell |
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| CN102377278A (en) | 2012-03-14 |
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Granted publication date: 20150610 Termination date: 20160812 |