CN103479297A - Low-noise motor casing structure with crossed flow channel of vacuum cleaner - Google Patents
Low-noise motor casing structure with crossed flow channel of vacuum cleaner Download PDFInfo
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- CN103479297A CN103479297A CN201210190186.2A CN201210190186A CN103479297A CN 103479297 A CN103479297 A CN 103479297A CN 201210190186 A CN201210190186 A CN 201210190186A CN 103479297 A CN103479297 A CN 103479297A
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Abstract
The invention discloses a low-noise motor casing structure with a crossed flow channel of a vacuum cleaner. The low-noise motor casing structure comprises an inner shell and an outer shell, wherein a dust collecting motor is arranged in the inner shell, the outer shell is arranged outside the inner shell at a certain spatial distance, an air inlet of the outer shell is formed in the front end of the outer shell, the crossed flow channel is formed between the outer shell and the inner shell, air outlets of the inner shell are formed in the peripheral wall of the inner shell, and air outlets of the outer shell are formed in the tail end of the outer shell. When the vacuum cleaner is operated, air flow which flows through a motor is exhausted through the two air outlets in the inner shell and propagated through the crossed flow channel, after the air flow reaches a diversion baffle, the air flow is shunted and propagated to the air outlets of the outer shell above and below the diversion baffle through diversion ribs, and finally, the air flow is exhausted. By using such a motor casing structure, the length of the flow channel for exhausting the air flow is increased and maximized within limited space, the purpose of reducing noise is realized by increasing the propagation loss of the noise, and the motor casing structure has the advantages of low cost, simplicity and easiness in realization.
Description
Technical field
The invention belongs to the electric equipment field of dust catcher, particularly relate to the right-angled intersection runner low noise motor shell structure that forms the right-angled intersection runner between a kind of external shell of motor casing and inner shell.
Background technology
Dust suction is a kind of sanitation and hygiene electrical equipment, for removing the dust in ground, carpet, wall, furniture, clothing and various gaps.In general, dust catcher mainly comprises aspirator and suction line, the aspirator that the motor of take becomes as dominant shape with blower fan is arranged in dust catcher body, suction line comprises suction nozzle, dust-collection rigid tube and hose, and the air entry of the oriented under shed of suction nozzle also communicates with the air inlet of dust catcher body inner blower by dust-collection rigid tube and hose.
In dust catcher when running,, motor drives the impeller High Rotation Speed of blower fan, and the air exhausting of dust catcher inside is gone out, and in the inside of dust catcher, forms instantaneous vacuum, and forms a quite high Negative Pressure Difference between ambient atmosphere.Under the effect of this Negative Pressure Difference, near dust suction nozzle sucks in the dust bucket in dust catcher body by air entry together with air.The air that contains dust after filtering, then is discharged to the pure air after dedusting the dust catcher outside in the dust bucket of dust catcher body from gas outlet.Like this, just reach the effect of dust out, cleaning floor.The suction rate of dust catcher is divided into a plurality of class that operate control, adapts to the scope of operation of the different cleaning objects such as ground, bed surface, carpet, sofa, corner, in order to aspirate better dust everywhere.
Profile classification according to dust catcher, can be divided into vertical type dust collector, horizontal (pot type) dust catcher and portable dust collector etc.For dust catcher, no matter be vertical type dust collector, horizontal dust collector or portable dust collector, at inner of dust catcher body or the outside dust bucket of assembling dust and foreign matter that is provided with, the inner dust of assembling of dust bucket and foreign matter need regularly to remove, to guarantee the normal use of dust catcher, therefore, dust bucket can take off usually, make it to separate with dust catcher body, reinstall to again original position after removing rubbish.
During the work of dust catcher sucktion fan, near dust suction nozzle together with air by air intake duct and in air inlet is drawn into dust bucket, form swirling eddy in dust bucket, in the process of flow rotation, the part dust drops to the staving bottom, the air of inspiration simultaneously, after separating and filtering, is discharged outside dust bucket.
Fig. 1 is the top view of the vacuum cleaner body of prior art; Fig. 2 is A-A cutaway view in Fig. 1; Fig. 3 is motor of dust collector shell vertical profile structure and the gas flow path schematic diagram of prior art.As shown in Figure 1 to Figure 3, the vacuum cleaner body of prior art comprises: the upper cover 4 that is arranged on body of dust collector 1 upside, the handle 6 for carrying dust catcher that upper cover 4 top center and upper cover are integrally formed, the rotatable shifting roller 5 that body of dust collector 1 both sides, rear arrange respectively.Shifting roller moves body of dust collector smoothly on the ground.In addition, the position, the place ahead, bottom surface of body of dust collector is provided with Caster, for changing the moving direction of body of dust collector.Also be provided with winder on body of dust collector, power supply be supplied to the electric wire that is arranged at the driver element in body of dust collector and roll, and the keeping electric wire.Cover the coil winder press key 7 be provided with for operating winder on body of dust collector.The place ahead of body of dust collector is provided with dismountable dust bucket 2 for storing dust, is provided with the handle 3 of dumping rubbish for carrying the fortune dust bucket on the lateral wall of dust bucket.
The anterior dust bucket of body of dust collector below is provided with the connecting portion 13 that is communicated with suction nozzle, and suction nozzle is for sucking the extraneous air that contains dust.The downside of dust bucket is formed with the air inlet 14 be communicated with connecting portion, the upper end of air inlet is communicated with the cyclone separator 9 that is arranged on the dust bucket top, the cyclone separator staving is inner is equipped with whirlwind generator 10 abreast with staving, offers on cyclone separator wall dust is discharged to the dust outlet 12 in dust bucket.Dust bucket and cyclone separator the place ahead are provided with the filter cartridge 11 of built-in sponge, and filter cartridge is connected to the opening part of the cyclone of cyclone separator, and correspondence is provided with air intake.Body of dust collector inner filtration box the place ahead is provided with electric motor units 8.Electric motor units is the driver element of dust catcher, and it produces the air attraction, and the extraneous air that contains dust is inhaled in body of dust collector by suction nozzle.
Electric motor units comprises motor casing and the dust sucting motor that is arranged on motor casing inside, and dust sucting motor is arranged on inner housing 15 inside, is formed with densely covered passage on the inner housing perisporium.The interior cap 17 that the front end of inner housing 15 is provided with, the central authorities of interior cap 17 form densely covered air admission hole.The outside of inner housing 15 is provided with the shell that keeps with it the certain space distance, and shell consists of shell body 20 and casing cover 19, in casing cover 19 central authorities of shell body 20 front ends, is formed with shell air inlet 18, and shell air inlet 18 is over against the air admission hole of interior cap 17 central authorities.The rear end of shell body 20 is formed with exhaust outlet 16, and clean air is discharged by exhaust outlet 16.
Dotted line in Fig. 2 means the air flow circuit in dust catcher, and during dust catcher work, the ground air that contains dust, will be inhaled in cyclone separator by suction nozzle, connecting portion, air inlet.Cyclone separator utilizes cyclonic principle, utilizes the difference of the centrifugal force between air and dust to isolate oarse-grained dust.The dust be separated falls in dust bucket by dust outlet, and dust bucket is for storing dust.Smaller dust enters filter cartridge by the through hole on the whirlwind wall together with air, after the sponge in box is filtered again after filtration, is inhaled into electric motor units inside, and the air outlet on body of dust collector is discharged to outside dust catcher body.
Gas communication process in the motor casing of the above-mentioned prior art of brief description: the clean shell air inlet 18 of air on casing cover 19 enters in shell body 20, and enter dust sucting motor by the air admission hole on cap in inner housing 17, and the gas of discharging via the dust sucting motor gas outlet, enter into 20 li of shell bodies by passage densely covered on inner housing 15, and the exhaust outlet 16 formed by the runner between shell body and inner housing and shell body 20 rear ends is discharged.
Motor is placed in motor casing, and purpose is to allow motor casing reduce the noise that motor rotation produces, and plays sound insulation except the effect of making an uproar.
But, there are the following problems for the motor casing structure of prior art as above: the space between shell body and inner housing is very little, the gas of being discharged by the dust sucting motor gas outlet is nearer apart from the exhaust outlet of shell body, air flow channel in shell body is too short, therefore, limited to slackening of noise, noise reduction is not obvious, can not fully solve the problem of reducing noise.
Summary of the invention
The present invention is in order to solve in prior art the too short technical problem of air flow channel in electric machine casing, and the right-angled intersection runner low noise motor shell structure that forms the right-angled intersection runner between a kind of external shell of motor casing and inner shell is provided.
The technical scheme that the present invention takes for the technical problem existed in the solution known technology is:
The right-angled intersection runner low noise motor shell structure of dust catcher of the present invention, comprise the inner shell of built-in dust sucting motor and be arranged on the outer also external shell of interval certain space distance of inner shell, the front end of external shell is formed with the shell body air inlet, form the right-angled intersection runner between external shell and inner shell, be formed with the inner housing exhaust outlet on the perisporium of inner shell, the tail end of external shell is formed with the shell body exhaust outlet.
The inner shell of described motor casing is cylindrical, and the cross section of external shell front portion is circular, and the rear portion of external shell forms orthogonal horizontal tail end and vertical tail end, the cross that the cross section at rear portion is square crossing.
The rear end central authorities of described vertical tail end are provided with flow apron, and the above and below of flow apron arranges the shell body exhaust outlet.
The front side of described flow apron is provided with many fuisw ribs along the length direction of flow apron.
The front end of described inner shell is provided with two inner housing exhaust outlets corresponding to the direction of the horizontal tail end of external shell.
Described motor casing front end and dust sucting motor junction are provided with positioning seal ring.
Be provided with fixedly damping washer between the central authorities of described dust sucting motor rear end and inner shell.
By structure, identical and symmetrically arranged upper shell and lower house form described motor casing, and upper shell and lower house all are provided with external shell and inner shell.
External shell and the inner shell of described upper shell are integrally formed, and external shell and the inner shell of lower house are integrally formed.
Advantage and good effect that the present invention has are:
The right-angled intersection runner low noise motor shell structure of dust catcher of the present invention, form the right-angled intersection runner between external shell and inner shell, the air-flow of motor two exhaust outlets on inner shell of flowing through are discharged, through the right-angled intersection runner between external shell and inner shell, propagated, arrive the flow apron place, via fuisw rib, to the shell body exhaust outlet shunting of flow apron above and below, propagate, finally discharge.Such motor casing structure has increased the flow channel length that air-flow is discharged, and has realized the maximization of airflow path length in limited space, realized reducing the purpose of noise by the propagation loss that increases noise, and cost is low, is simple and easy to realize.
The accompanying drawing explanation
Fig. 1 is the top view of the vacuum cleaner body of prior art;
Fig. 2 is A-A cutaway view in Fig. 1;
Fig. 3 is motor of dust collector shell vertical profile structure and the gas flow path schematic diagram of prior art;
Fig. 4 is the three-dimensional structure diagram of right-angled intersection runner low noise motor shell structure of the present invention;
Fig. 5 is internal structure and the gas flow schematic diagram of motor casing structure of the present invention;
Fig. 6 is the decomposition chart of right-angled intersection runner low noise motor shell structure of the present invention.
Critical piece symbol description in accompanying drawing:
1: body of dust collector 2: dust bucket 3: handle
4: upper cover 5: shifting roller 6: handle
7: coil winder press key 8: electric motor units 9: cyclone separator
10: whirlwind generator 11: filter cartridge 12: dust outlet
13: connecting portion 14: air inlet 15: inner housing
16: exhaust outlet 17: interior cap 18: air inlet
19: casing cover 20: shell body 21: motor casing
22: vertical tail end 23: horizontal tail end 24: flow apron
25: shell body exhaust outlet 26: inner shell 27: connecting portion
28: shell body air inlet 29: external shell 30: the inner housing exhaust outlet
31: fuisw rib 32: dust sucting motor 33: upper shell
34: positioning seal ring 35: fixedly damping washer 36: lower house.
The specific embodiment
Referring to drawings and Examples, the present invention will be described in detail.In the present invention, parts same as the prior art have been used identical symbol.
Fig. 4 is the three-dimensional structure diagram of right-angled intersection runner low noise motor shell structure of the present invention; Fig. 5 is the internal structure schematic diagram of motor casing structure of the present invention.As shown in Figure 4 and Figure 5, the right-angled intersection runner low noise motor shell structure of dust catcher of the present invention, be arranged in the body of body of dust collector, described body of dust collector comprises the upper cover that is arranged on the body of dust collector upside, upper cover top center and upper cover integrally formed for carrying the handle of dust catcher, both sides, body of dust collector rear arrange respectively makes body of dust collector mobile rotatable shifting roller on the ground smoothly.The place ahead of body of dust collector is provided with dismountable for storing the dust bucket of dust, is provided with the handle of dumping rubbish for carrying the fortune dust bucket on the lateral wall of dust bucket.The anterior dust bucket of body of dust collector below is provided with the connecting portion that is communicated with suction nozzle, and suction nozzle is for sucking the extraneous air that contains dust.The downside of dust bucket is formed with the air inlet be communicated with connecting portion, the upper end of air inlet is communicated with the cyclone separator that is arranged on the dust bucket top, the cyclone separator staving is inner is equipped with the whirlwind generator abreast with staving, offers on cyclone separator wall dust is discharged to the dust outlet in dust bucket.Dust bucket and cyclone separator the place ahead are provided with the filter cartridge of built-in sponge, and filter cartridge is connected to the opening part of the cyclone of cyclone separator, and correspondence is provided with air intake.Body of dust collector inner filtration box the place ahead is provided with electric motor units.Electric motor units is the driver element of dust catcher, and it produces the air attraction, and the extraneous air that contains dust is inhaled in body of dust collector by suction nozzle.
Motor casing is the housing of electric motor units outside, comprise the inner shell 26 of built-in dust sucting motor and be arranged on the outer also external shell 29 of interval certain space distance of inner shell 26, the front end of external shell 29 is formed with shell body air inlet 28, forms the right-angled intersection runner between external shell and inner shell.The inner shell 26 of motor casing is cylindrical, the front end outward of inner shell 26 forms the connecting portion 27 perpendicular to cylindrical shell, connecting portion 27 is anchor ring, and periphery is connected with external shell 29 and forms one, therefore also can say that external shell 29 and inner shell 26 are integrally formed.The cross section of external shell 29 front portions is circular, and the rear portion of external shell forms orthogonal horizontal tail end 23 and vertical tail end 22, the cross that the cross section at rear portion is square crossing, and it is interface that above-mentioned front and rear be take the plane at connecting portion place.
Laterally the length of tail end 23 is less than the length of vertical tail end 22, and vertically the rear end of tail end 22 protrudes from horizontal tail end 23.The front end of inner shell 26 is provided with two inner housing exhaust outlets 30 corresponding to the direction of external shell 29 horizontal tail ends 23.
Vertically the rear end central authorities of tail end 22 are provided with flow apron 24, and the above and below of flow apron 24 is respectively arranged with shell body exhaust outlet 25.Flow apron 24 both sides are width with the direction that vertically sidewall of tail end 22 is connected, and the direction that both sides form shell body exhaust outlet 25 is length direction.The front side of flow apron 24, the length direction of flow apron 24 towards a side of inner shell 26 and dust sucting motor 32 along flow apron 24 is provided with many fuisw ribs 25.Fuisw rib 25 is discharged the shell body exhaust outlet 25 of the above and below of the stream of the air-flow boot wizard in the middle part of being gathered in baffle plate 24.
Fig. 6 is the decomposition chart of right-angled intersection runner low noise motor shell structure of the present invention.As shown in Figure 6, by structure, identical and symmetrically arranged upper shell 33 and lower house 36 form above-mentioned motor casing, and upper shell 33 and lower house 36 all are provided with external shell and inner shell.External shell and the inner shell of upper shell are integrally formed, and the external shell of lower house and inner shell are also integrally formed.Section in the middle of upper shell 33 and lower house 36 interconnects the integral body of common composition motor casing.Dust sucting motor 32 front ends are connected to shell body air inlet 28 places of external shell 29 front ends, and junction is provided with positioning seal ring 34.Be provided with fixedly damping washer 35 between the central authorities of dust sucting motor 32 rear ends and inner shell 26.Fixedly damping washer 35 is fixed together dust sucting motor and inner shell, and can reduce the vibration of motor.
During dust catcher work, under the effect of motor suction, the ground air that contains dust, will be inhaled in cyclone separator by suction nozzle, connecting portion, the air inlet in the ground contact.Cyclone separator utilizes cyclonic principle, utilizes the difference of the centrifugal force between air and dust to isolate oarse-grained dust.The dust be separated falls in dust bucket by dust outlet, and dust bucket is for storing dust.Smaller dust enters filter cartridge by the through hole on the whirlwind wall together with air, and after the filtration sponge in box is filtered again after filtration, the air outlet of box and the shell body air inlet on motor casing enter electric motor units inside after filtration.
The air-flow of motor two exhaust outlets on inner shell of flowing through are discharged, the flow through horizontal tail end inside of external shell, arrive the flow apron place at inner shell rear, under the effect of fuisw rib, shell body exhaust outlet shunting to the flow apron above and below is propagated, be that air-flow is propagated at the rear of inner shell formation right-angled intersection runner, discharge finally by the shell body exhaust outlet of drainage baffle plate above and below.Such motor casing structure has increased the flow channel length that air-flow is discharged, and has realized the maximization of airflow path length in limited space, has increased the propagation loss of noise, and then has reduced noise.
Claims (9)
1. the right-angled intersection runner low noise motor shell structure of a dust catcher, comprise the inner shell of built-in dust sucting motor and be arranged on the outer also external shell of interval certain space distance of inner shell, the front end of external shell is formed with the shell body air inlet, it is characterized in that: form the right-angled intersection runner between external shell (29) and inner shell (26), be formed with inner housing exhaust outlet (30) on the perisporium of inner shell (26), the tail end of external shell (29) is formed with shell body exhaust outlet (25).
2. the right-angled intersection runner low noise motor shell structure of dust catcher according to claim 1, it is characterized in that: the inner shell of motor casing (26) is cylindrical, the anterior cross section of external shell (29) is circular, the rear portion of external shell forms orthogonal horizontal tail end (23) and vertical tail end (22), the cross that the cross section at rear portion is square crossing.
3. the right-angled intersection runner low noise motor shell structure of dust catcher according to claim 2, it is characterized in that: vertically the rear end central authorities of tail end (22) are provided with flow apron (24), and the above and below of flow apron (24) arranges shell body exhaust outlet (25).
4. the right-angled intersection runner low noise motor shell structure of dust catcher according to claim 3, it is characterized in that: the front side of flow apron (24) is provided with many fuisw ribs (31) along the length direction of flow apron.
5. the right-angled intersection runner low noise motor shell structure of dust catcher according to claim 3, it is characterized in that: the front end of inner shell (26) is provided with two inner housing exhaust outlets (30) corresponding to the direction of the horizontal tail end of external shell.
6. the right-angled intersection runner low noise motor shell structure of dust catcher according to claim 1, it is characterized in that: motor casing front end and dust sucting motor junction are provided with positioning seal ring (34).
7. the right-angled intersection runner low noise motor shell structure of dust catcher according to claim 1, is characterized in that: be provided with fixedly damping washer between the central authorities of dust sucting motor rear end and inner shell.
8. the right-angled intersection runner low noise motor shell structure of dust catcher according to claim 1, it is characterized in that: motor casing is identical and symmetrically arranged upper shell (33) and lower house (36) formation by structure, and upper shell and lower house all are provided with external shell and inner shell.
9. the right-angled intersection runner low noise motor shell structure of dust catcher according to claim 8, it is characterized in that: external shell and the inner shell of upper shell are integrally formed, and external shell and the inner shell of lower house are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210190186.2A CN103479297A (en) | 2012-06-11 | 2012-06-11 | Low-noise motor casing structure with crossed flow channel of vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210190186.2A CN103479297A (en) | 2012-06-11 | 2012-06-11 | Low-noise motor casing structure with crossed flow channel of vacuum cleaner |
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| Publication Number | Publication Date |
|---|---|
| CN103479297A true CN103479297A (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210190186.2A Pending CN103479297A (en) | 2012-06-11 | 2012-06-11 | Low-noise motor casing structure with crossed flow channel of vacuum cleaner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280577A (en) * | 2016-03-31 | 2017-10-24 | 康塔有限公司 | Vacuum cleaner |
| CN110169733A (en) * | 2019-06-17 | 2019-08-27 | 宁波兰花电器制造有限公司 | A kind of dust collector host and dust catcher |
| CN110477798A (en) * | 2019-09-23 | 2019-11-22 | 小狗电器互联网科技（北京）股份有限公司 | A kind of electric machine assembly of dust catcher, gas deflation assembly, method for exhausting and dust catcher |
-
2012
- 2012-06-11 CN CN201210190186.2A patent/CN103479297A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280577A (en) * | 2016-03-31 | 2017-10-24 | 康塔有限公司 | Vacuum cleaner |
| CN110169733A (en) * | 2019-06-17 | 2019-08-27 | 宁波兰花电器制造有限公司 | A kind of dust collector host and dust catcher |
| CN110169733B (en) * | 2019-06-17 | 2024-01-23 | 宁波兰花电器制造有限公司 | Dust collector host and dust collector |
| CN110477798A (en) * | 2019-09-23 | 2019-11-22 | 小狗电器互联网科技（北京）股份有限公司 | A kind of electric machine assembly of dust catcher, gas deflation assembly, method for exhausting and dust catcher |
| CN110477798B (en) * | 2019-09-23 | 2023-11-28 | 北京小狗吸尘器集团股份有限公司 | Motor assembly of dust collector, exhaust assembly, exhaust method and dust collector |
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Application publication date: 20140101 |