CN103169422B - There is the small size motor of dust collector storehouse of noise reduction function - Google Patents
There is the small size motor of dust collector storehouse of noise reduction function Download PDFInfo
- Publication number
- CN103169422B CN103169422B CN201110430494.3A CN201110430494A CN103169422B CN 103169422 B CN103169422 B CN 103169422B CN 201110430494 A CN201110430494 A CN 201110430494A CN 103169422 B CN103169422 B CN 103169422B
- Authority
- CN
- China
- Prior art keywords
- motor
- noise
- elimination cavity
- noise elimination
- dust collector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a kind of small size motor of dust collector storehouse with noise reduction function, including motor cover, electric machine assembly, fore filter, motor casing, exhaust filter core and lower raft, the top of motor cover is provided with suction inlet, between motor casing and lower raft and be positioned at the outside of exhaust filter core and be formed with discharge chamber, on lower raft, it is positioned at discharge chamber position and is provided with L-type silencing cavity and cylindrical shape noise elimination cavity and collectively form broadband muffler.It is little that L-type silencing cavity in Broad Band Muffler in the present invention has the size that takes up room, and can reasonably utilize the confined space of motor casing, and for single-frequency noise good muffling effect, its acting frequency is from 4kHz to 10kHz.It addition, make full use of the segment space that motor casing geometry is formed, setting up baffle muffler on motor shell wall, utilize the contraction noise elimination cavity that dividing plate is formed, the sound pressure level that can reduce is 7dB, and overall sound pressure level reduces 3.8dB.
Description
Technical field
The present invention relates to a kind of vacuum cleaner, particularly relate to the motor of a kind of vacuum cleaner.
Background technology
In general, dust catcher is by being arranged on the fan electromotor of body interior generation suction, utilizing above-mentioned suction to suck ash
The device of dirt.Dust catcher is the electrical equipment that ground or carpet etc. are carried out dust cleaning by said process.Motor of dust collector is
The heart of dust catcher, the main species of motor of dust collector has: dry suction motor of dust collector, dry and wet motor of dust collector.Dust catcher electricity
Machine is made up of two parts: motor part and fan section, owing to motor of dust collector is the highest to rotation speed requirements, typically exists
20000-30000 rev/min, therefore motor mainly uses series excitation class motor, is also called series machine, series machine is
Stator excitation winding and armature (rotor) winding are series connection, not only can lead to direct current but also can indirect current, there is commutator commutation
Motor, series machine mainly has stator, rotor, forward and backward end cap (cover) and cooling wind blade composition, and stator has stator
Iron core and the winding composition being enclosed within pole shoe, its effect is to produce magnetic flux, covers before and after magnetic conduction and support；Rotor has rotor
Iron core, axle, armature winding and commutator composition, its effect is to ensure that and produces continuous print electromagnetic torque, driven by rotating shaft
Load acting, converts electrical energy into mechanical energy；Front and back cover support armature, stator and rotor linked the effect being integrally fixed,
Its shaft, forward and backward cover to have enough intensity, in case armature and cover generation covibration, cause and vibrate and dangerous, and one
As have rolling or sliding bearing in forward and backward cover.Fan section mainly has two critical pieces, and movable vane is taken turns and determines impeller, movable vane
Wheel mainly produces wind, when movable vane is taken turns with when being carried out at high speed rotation of 20000-30000 rev/min, and air inlet can be produced
Raw negative pressure shape becomes vacuum, and then forms suction；Determining impeller, also known as inducer, Main Function is so that the wind that movable vane wheel produces
What amount more smoothed out discharges, and determines the quality in impeller air channel, directly affects the efficiency of motor of dust collector.
Dust catcher is the good assistant of life, but the noise of dust catcher but makes us worried.The noise of dust catcher is broadly divided into three
Big class, i.e. vibration noise, aerodynamic noise and electromagnetic noise, wherein: the vibration of solid causes generation and the radiation of acoustic energy, belong to
In structural member noise category；Electromagnetic noise is the pulsation due to electromagnetic field, the interaction of alternating magnetic field power and the noise that produces,
The electromagnetic force wave mainly caused by each air gap flux density harmonic wave during electrical power acts on caused by electric machine structure；By turbulent flow and non-
The fluid flow-induction noise that the pressure oscillation of steady motion of a fluid induction causes, belongs to aerodynamic noise category.
At present, vibration noise noise reduction measure specifically includes that the modes such as dynamic absorber, isolating technique, damping vibration attenuation reduce vibration,
And reduce, by sound absorption and sound insulating method, the noise caused by vibration further.Electromagnetic noise noise reduction measure mainly has: rationally set
Pawl pole, forms sinusoidal excitation field, reduces Resonance Wave Composition；Select suitable air gap flux density, in order to avoid waste material；It is suitable to select
Slot fit, it is to avoid low order Reeb occurs；Stator and rotor touch road symmetrically and evenly, repeatedly compress close, and particularly stator coil is with fixed
Between son fixed.And pneumatic sound source is the most easy to identify, significant region typically in self inside of fluid flowing, and
And comprise sound source.These noise sources are constantly generating or with flowing in convection current.
Owing to the motor casing size of existing dust catcher is relatively big, therefore, it can by setting up annular space in machine cavity periphery, to decline
Powered down thermomechanical components produces and to the external communication noise of motor housing；It addition, between this annular space and electric machine assembly suction inlet
Setting up connection stream, under the suction of electric machine assembly, the air in annular space will suck by connecting stream, make annular space be formed very
Dummy status, so that the medium for borne noise thins out, improves the attenuating of noise.This noise reducing efforts is suitable for
In the motor casing with larger space.
Along with constantly reducing of dust catcher overall volume, wherein motor housing reduces the most therewith, therefore, there is presently no one
For the noise-reducing design of small size motor, during as it is shown in figure 1, wherein direction shown in arrow is motor driving, air-flow (namely
The propagation of sound wave) direction.
Summary of the invention
For above-mentioned prior art, the present invention provides a kind of small size motor of dust collector storehouse with noise reduction function, present invention electricity
Machine makes full use of the confined space of motor casing, increases L-type noise elimination cavity at motor casing exhaust position, arranges many in position, gas outlet
The broadband silencer with drum type brake noise elimination cavity of resonance point superposition.
In order to solve above-mentioned technical problem, the present invention has the technology that the small size motor of dust collector storehouse of noise reduction function is achieved
Scheme is: include motor cover, electric machine assembly, partiting polarization rubber pad, motor casing, exhaust filter core and lower raft, described motor
The top of cover is provided with suction inlet, between described motor casing and lower raft and be positioned at the outside of exhaust filter core and be formed with discharge chamber,
On described lower raft, being positioned at discharge chamber position and be provided with Broad Band Muffler, described Broad Band Muffler includes main body, institute
Stating main body and be provided with multiple L-type noise elimination cavity being arranged side by side, the plane of symmetry of described L-type noise elimination cavity is put down with Acoustic Wave Propagation direction
OK.
Further, the present invention has the small size motor of dust collector storehouse of noise reduction function, wherein, described Broad Band Muffler
Being additionally provided with multiple cylinder noise elimination cavity in main body, the axis of described cylinder noise elimination cavity is perpendicular to Acoustic Wave Propagation direction.
It addition, the present invention has the small size motor of dust collector storehouse of noise reduction function, wherein, the plurality of L being arranged side by side
Type noise elimination cavity is positioned in main body the side near exhaust filter core, and the plurality of cylinder noise elimination cavity is positioned in main body away from exhaust filter core
Side.
Further, the present invention has the small size motor of dust collector storehouse of noise reduction function, wherein, on described motor casing sidewall, and position
Intersection in described exhaust filter core Yu discharge chamber is provided with baffle muffler, in described baffle muffler by multiple from upper and
The dividing plate of lower layout defines multiple contraction noise elimination cavity.
Compared with prior art, the invention has the beneficial effects as follows:
It is little that L-type silencing cavity in Broad Band Muffler in the present invention has the size that takes up room such that it is able to reasonably utilizes
The confined space of motor casing, and for single-frequency noise good muffling effect, collectively form broadband with cylindrical shape noise elimination cavity and disappear
Sound device, its acting frequency is from 4kHz to 10kHz.It addition, make full use of the segment space that motor casing geometry is formed,
Setting up baffle muffler on motor shell wall, utilize the contraction noise elimination cavity that dividing plate is formed, the sound pressure level that can reduce is
7dB.The motor of the present invention can effectively reduce sound pressure level, and overall sound pressure level reduces 3.8dB.
Accompanying drawing explanation
Fig. 1 is a small size electric machine structure schematic diagram in prior art；
Fig. 2 is the schematic diagram that the present invention has the small size motor of dust collector storehouse of noise reduction function；
Fig. 3 is the upward view after motor bin takes away lower raft shown in Fig. 2；
Fig. 4 is the exploded view of motor bin described in Fig. 2；
Fig. 5 is the schematic diagram of the noise elimination cavity of Broad Band Muffler L-type shown in Fig. 4；
Fig. 6 is baffle muffler structural representation shown in Fig. 4；
Fig. 7 is the three-dimensional cutaway view of Fig. 5 A-A slice location；
Fig. 8 is the operation principle schematic diagram of L-type noise elimination cavity shown in Fig. 7；
Fig. 9 is to motor bin noise testing result curve of the present invention.
In figure:
1 motor cover 2 electric machine assembly 3 fore filter
4 motor casing 5 exhaust filter core 6 Broad Band Mufflers
61 main body 62 L-type noise elimination cavity 63 cylindrical shape noise elimination cavities
7 baffle muffler 71 dividing plates 72 shrink noise elimination cavity
8 lower raft 10 suction inlet 20 discharge chambers
Detailed description of the invention
The detailed process of the present invention is told about below, it is provided that embodiment is for the convenience understood, is in no way intended to limit with an embodiment
The present invention.
As shown in Figures 2 and 3, the present invention have the small size motor of dust collector storehouse of noise reduction function mainly include motor cover 1,
Electric machine assembly 2, fore filter 3, motor casing 4, exhaust filter core 5 and lower raft 8, the top of described motor cover 1 sets
There is suction inlet 10, between described motor casing 4 and lower raft 8 and be positioned at the outside of exhaust filter core 5 and be formed with discharge chamber 20.
On described lower raft 8, it is positioned at discharge chamber 20 position and is provided with Broad Band Muffler 6, as shown in Figure 3 and Figure 4
Described Broad Band Muffler 6 includes that main body 61, described main body 61 are provided with multiple L-type noise elimination cavity 62 being arranged side by side,
The plane of symmetry of described L-type noise elimination cavity 62 is parallel with Acoustic Wave Propagation direction.As shown in figure 5 and figure 7, described broadband is eliminated the noise
Being additionally provided with multiple cylinder noise elimination cavity 63 in the main body 61 of device, the axis of described cylinder noise elimination cavity 63 is perpendicular to Acoustic Wave Propagation side
To.The plurality of L-type noise elimination cavity 62 being arranged side by side is positioned in main body 61 side near exhaust filter core 5, described many
Individual cylinder noise elimination cavity 63 is positioned at the side in main body 61 away from exhaust filter core 5.Fig. 8 shows that in the present invention, L-type is eliminated the noise
The operation principle can eliminated the noise in chamber.
As shown in Figure 4 and Figure 6, on described motor casing 4 sidewall, it is positioned at the friendship of described exhaust filter core 5 and discharge chamber 20
It is provided with baffle muffler 7 at remittance, described baffle muffler 7 is defined by multiple dividing plates 71 arranged from top to bottom
Multiple contraction noise elimination cavities 72.
It is little that L-type silencing cavity in Broad Band Muffler in the present invention has the size that takes up room such that it is able to reasonably utilizes
The confined space of motor casing, and for single-frequency noise good muffling effect, collectively form broadband with cylindrical shape noise elimination cavity and disappear
Sound device, its acting frequency is from 4kHz to 10kHz.It addition, make full use of the segment space that motor casing geometry is formed,
Setting up baffle muffler on motor shell wall, utilize the contraction noise elimination cavity that dividing plate is formed, the sound pressure level that can reduce is
7dB.The motor of the present invention can effectively reduce sound pressure level, and overall sound pressure level reduces 3.8dB.Fig. 9 shows the present invention
The noise testing curve of motor bin, wherein, dotted line represents the noise spectrum before improving, and solid line represents noise spectrum after improving.
Although above in conjunction with figure, invention has been described, but the invention is not limited in above-mentioned detailed description of the invention,
Above-mentioned detailed description of the invention is only schematic rather than restrictive, and those of ordinary skill in the art is in the present invention
Enlightenment under, without deviating from the spirit of the invention, it is also possible to make many variations, these belong to the guarantor of the present invention
Within protecting.
Claims (4)
1. there is a small size motor of dust collector storehouse for noise reduction function, including motor cover (1), electric machine assembly (2), vibration isolation
Rubber blanket (3), motor casing (4), exhaust filter core (5) and lower raft (8), the top of described motor cover (1) is provided with
Suction inlet (10), between described motor casing (4) and lower raft (8) and be positioned at the outside of exhaust filter core (5) and be formed
Discharge chamber (20), it is characterised in that:
On described lower raft (8), it is positioned at discharge chamber (20) position and is provided with Broad Band Muffler (6), described wideband
Band silencer (6) includes that main body (61), described main body (61) are provided with multiple L-type noise elimination cavity (62) being arranged side by side,
The plane of symmetry of described L-type noise elimination cavity (62) is parallel with Acoustic Wave Propagation direction.
The small size motor of dust collector storehouse with noise reduction function the most according to claim 1, it is characterised in that described width
Multiple cylinder noise elimination cavity (63), the axis of described cylinder noise elimination cavity (63) it is additionally provided with in the main body (61) of frequency band silencer
It is perpendicular to Acoustic Wave Propagation direction.
The small size motor of dust collector storehouse with noise reduction function the most according to claim 2, it is characterised in that described many
The individual L-type noise elimination cavity (62) being arranged side by side is positioned at the upper side near exhaust filter core (5) of main body (61), the plurality of
Cylinder noise elimination cavity (63) is positioned at the side in main body (61) away from exhaust filter core (5).
The small size motor of dust collector storehouse with noise reduction function the most according to claim 1, it is characterised in that described
On motor casing (4) sidewall, the intersection being positioned at described exhaust filter core (5) and discharge chamber (20) is provided with baffle muffler
(7), described baffle muffler (7) is defined multiple contraction by multiple dividing plates (71) arranged from top to bottom to eliminate the noise
Chamber (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110430494.3A CN103169422B (en) | 2011-12-20 | 2011-12-20 | There is the small size motor of dust collector storehouse of noise reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110430494.3A CN103169422B (en) | 2011-12-20 | 2011-12-20 | There is the small size motor of dust collector storehouse of noise reduction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103169422A CN103169422A (en) | 2013-06-26 |
| CN103169422B true CN103169422B (en) | 2016-09-07 |
Family
ID=48629945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110430494.3A Expired - Fee Related CN103169422B (en) | 2011-12-20 | 2011-12-20 | There is the small size motor of dust collector storehouse of noise reduction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103169422B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12004701B2 (en) | 2016-03-31 | 2024-06-11 | Lg Electronics Inc. | Cleaner |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104414588B (en) * | 2013-09-06 | 2017-02-08 | 江苏美的清洁电器股份有限公司 | Dust collector and exhaust device of dust collector |
| US11166607B2 (en) | 2016-03-31 | 2021-11-09 | Lg Electronics Inc. | Cleaner |
| WO2017171496A1 (en) | 2016-03-31 | 2017-10-05 | 엘지전자 주식회사 | Cleaning apparatus |
| TWI743104B (en) | 2016-03-31 | 2021-10-21 | 南韓商Ｌｇ電子股份有限公司 | Cleaner |
| WO2017171495A1 (en) | 2016-03-31 | 2017-10-05 | 엘지전자 주식회사 | Cleaning apparatus |
| KR102560970B1 (en) * | 2016-03-31 | 2023-07-31 | 엘지전자 주식회사 | Cleaner |
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259129Y (en) * | 1995-09-22 | 1997-08-13 | 林进源 | Silencing device for suction cleaner |
| JP2005066309A (en) * | 2003-08-26 | 2005-03-17 | Suzhou Kingclean Floorcare Co Ltd | Vacuum cleaner silencer |
| KR20050115962A (en) * | 2004-06-04 | 2005-12-08 | 주식회사 대우일렉트로닉스 | Noise reduction device of vacuum cleaner |
| US7225504B2 (en) * | 2002-12-12 | 2007-06-05 | Suzhou Kingclean Floorcare Co., Ltd. | Noise suppressor for use with vacuum air cleaner |
| CN101057763A (en) * | 2007-04-28 | 2007-10-24 | 金日清洁设备(苏州)有限公司 | Vacuum cleaner |
| CN101771306A (en) * | 2010-02-22 | 2010-07-07 | 莱克电气股份有限公司 | Noise reduction structure of motor of vacuum cleaner |
| CN102025215A (en) * | 2009-09-22 | 2011-04-20 | 乐金电子(天津)电器有限公司 | Motor cover for dust collector |
-
2011
- 2011-12-20 CN CN201110430494.3A patent/CN103169422B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259129Y (en) * | 1995-09-22 | 1997-08-13 | 林进源 | Silencing device for suction cleaner |
| US7225504B2 (en) * | 2002-12-12 | 2007-06-05 | Suzhou Kingclean Floorcare Co., Ltd. | Noise suppressor for use with vacuum air cleaner |
| JP2005066309A (en) * | 2003-08-26 | 2005-03-17 | Suzhou Kingclean Floorcare Co Ltd | Vacuum cleaner silencer |
| KR20050115962A (en) * | 2004-06-04 | 2005-12-08 | 주식회사 대우일렉트로닉스 | Noise reduction device of vacuum cleaner |
| CN101057763A (en) * | 2007-04-28 | 2007-10-24 | 金日清洁设备(苏州)有限公司 | Vacuum cleaner |
| CN102025215A (en) * | 2009-09-22 | 2011-04-20 | 乐金电子(天津)电器有限公司 | Motor cover for dust collector |
| CN101771306A (en) * | 2010-02-22 | 2010-07-07 | 莱克电气股份有限公司 | Noise reduction structure of motor of vacuum cleaner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12004701B2 (en) | 2016-03-31 | 2024-06-11 | Lg Electronics Inc. | Cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103169422A (en) | 2013-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103169422B (en) | There is the small size motor of dust collector storehouse of noise reduction function | |
| JP2012237219A (en) | Electric blower, and vacuum cleaner using the same | |
| CN205622460U (en) | Brushless dust catcher electric wind machine | |
| CN103169423B (en) | A kind of motor bin with variable frequency resonator | |
| CN102562657A (en) | Fan for direct-current motors | |
| CN205618393U (en) | Adopt axial flux brushless motor's dust collector fan | |
| JP2007146746A (en) | Electric blower and electric vacuum cleaner using same | |
| CN102090863B (en) | De-noising structure of dust collector motor | |
| CN104753254A (en) | Permanent magnet synchronous motor and screw rod compressor containing permanent magnet synchronous motor | |
| CN214742208U (en) | Centrifugal fan driven by squirrel-cage disc type self-starting permanent magnet synchronous motor | |
| CN203081811U (en) | Traction fan for high-power internal combustion locomotive | |
| CN202707622U (en) | Double source system electric locomotive traction fan | |
| CN105827079B (en) | Using the blower of cleaner of axial magnetic flux brushless motor | |
| CN213574748U (en) | Air suspension blower capable of cooling and radiating air | |
| CN212875592U (en) | A stabilize protection device for brushless motor | |
| CN104675753A (en) | Flow guidance and noise reduction centrifugal fan | |
| CN202069538U (en) | Noise reduction structure for motor of dust collector | |
| JP2006288708A (en) | Motor-driven blower and vacuum cleaner including the same | |
| JP2010216364A (en) | Electric blower and vacuum cleaner using the same | |
| CN209856058U (en) | High-low temperature resistant shaded pole fan | |
| CN202560631U (en) | Fan for direct current (DC) motor | |
| CN206452243U (en) | A kind of motor of dust collector cooling noise-decreasing device | |
| CN205618394U (en) | Adopt axial flux brushless motor's dust collector fan | |
| JP2005207235A (en) | Electric blower and vacuum cleaner using the same | |
| JP2013136980A (en) | Electric blower and electric vacuum cleaner using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160517 Address after: 210014 Yongfeng Road, Qinhuai District, Jiangsu, No. 28, No. Applicant after: Nanjing LG Panda Appliances Co., Ltd. Address before: 300402 Beichen District, Tianjin Jin Wai Road, No. 9 Applicant before: Lejin Electronic and Electric Appliance Co., Ltd. (Tianjin) |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20171220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |