CN106073634A - Floor brush of dust collector and the vacuum cleaner with it - Google Patents
Floor brush of dust collector and the vacuum cleaner with it Download PDFInfo
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- CN106073634A CN106073634A CN201610669546.5A CN201610669546A CN106073634A CN 106073634 A CN106073634 A CN 106073634A CN 201610669546 A CN201610669546 A CN 201610669546A CN 106073634 A CN106073634 A CN 106073634A
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- guide face
- dust collector
- floor brush
- air
- clearance
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
The invention discloses a kind of floor brush of dust collector and there is its vacuum cleaner, described floor brush of dust collector includes: body, described internal limiting has the pump orifice connected with described air channel on air channel and front underside, described body covers and forms bubble-tight space when surface for clearance between described air channel and described surface for clearance, and the front end of described body has the nose air intake connected with described air channel；Diversion division, described diversion division is located at the front end of described body and neighbouring described nose air intake setting, and described diversion division has guide face so that outside air enters described air channel by described guide face and described nose air intake.Floor brush of dust collector according to the present invention, be there is the diversion division of guide face by setting, to improve the flow regime of air-flow entrance floor brush of dust collector, reduce the energy loss of air-flow, simultaneously, the guiding of air-flow is made air current flow more steady by guide face, reduces the turbulivity of air current flow, thus reduces aerodynamic noise.
Description
Technical field
The present invention relates to household electrical appliances clean technologies field, especially relate to a kind of floor brush of dust collector and there is its vacuum cleaner.
Background technology
Vacuum cleaner is the household electrical appliance reaching cleaning effect by producing the negative pressure suction foreign material such as dust, hair, and it is main
Parts are produced the main frame of suction motor, filter, dust collect plant etc. by being made up of, and contact the suction drawing foreign material with surface for clearance
Dirt device scrubbing brush and connect main frame and the flexible pipe of floor brush of dust collector.
The performance of vacuum cleaner depends primarily on two factors: high suction and low noise.High suction depends primarily on motor
Can, the motor of current vacuum cleaner can meet the suction needed for vacuum cleaner substantially, and noise problem is then that current vacuum cleaner is anxious
The problem that need to improve.The noise of vacuum cleaner is mainly derived from main frame and floor brush of dust collector.Main frame is transported due to the high speed of motor internal
Turning and mechanical vibration produce noise, floor brush of dust collector is mainly the gas that air draught (hereinafter referred to as " air-flow ") flow at high speed produces
Dynamic noise.In correlation technique, the noise of floor brush of dust collector is suitable with the noise of its main frame, even above main frame.
Summary of the invention
Present invention seek to address that one of technical problem present in prior art.To this end, it is an object of the present invention to
A kind of floor brush of dust collector is proposed, this floor brush of dust collector can reduce its when table general work for clearance air-flow on vacuum cleaner ground
The noise that in brush, flow at high speed produces.
Further object is that a kind of vacuum cleaner with above-mentioned floor brush of dust collector of proposition.
According to the floor brush of dust collector of the present invention, including: body, described internal limiting has on air channel and front underside
Have a pump orifice connected with described air channel, described body cover when surface for clearance described air channel and described surface for clearance it
Between form bubble-tight space, the front end of described body has the nose air intake connected with described air channel；Diversion division, described water conservancy diversion
Portion is located at the front end of described body and neighbouring described nose air intake setting, and described diversion division has guide face so that outside air leads to
Cross described guide face and described nose air intake enters described air channel.
According to the floor brush of dust collector of the present invention, be there is the diversion division of guide face by setting, at outside air along guide face
When being inhaled into floor brush of dust collector, air-flow can be improved and enter the flow regime of floor brush of dust collector so that air current flow is more steady, fall
The tubulence energy of low air current flow and turbulence level, thus reduce aerodynamic noise.
It addition, also can have a following additional technical feature according to the floor brush of dust collector of the present invention:
According to one embodiment of present invention, described guide face is positioned at the lower surface of described diversion division, and described guide face
Including at least one in front guide face and rear guide face, described front guide face is the most downward-sloping, described rear guide face
It is inclined upwardly from front to back.
Alternatively, in described front guide face and described rear guide face described at least one be formed as at least one cambered surface,
At least one plane or at least one cambered surface and the combination of at least one plane.
Alternatively, described front guide face is configured to the folder between the tangent line of any point on it and described surface for clearance
Angle α ＜ 60 °.
Further, described rear guide face is configured between the tangent line of any point on it and described surface for clearance
Angle β ＜ 20 °.
According to one embodiment of present invention, direction before and after the projection on described surface for clearance of the described front guide face
Length L1 ＞ 2mm；When described guide face includes described rear guide face, described rear guide face is on described surface for clearance
The length L2 ＞ 6mm in direction before and after projection.
According to one embodiment of present invention, described floor brush of dust collector also includes: front dust bar, and described front dust bar is located at
The front end of described body, wherein said nose air intake is located on described front dust bar.
According to one embodiment of present invention, when described guide face includes described front guide face and described rear guide face,
Described front dust bar is between described front guide face and described rear guide face.
According to one embodiment of present invention, on described diversion division between described front guide face and described rear guide face
Be formed in part with upwardly recessed groove, the upper end of described front dust bar is stretched in described groove and lower end is downwards beyond water conservancy diversion
Portion is to support described scrubbing brush on described surface for clearance.
According to one embodiment of present invention, vertical dimension between upper end and the described guide face of described nose air intake
Minima C is less than or equal to 2mm.
According to one embodiment of present invention, described nose air intake is multiple and is spaced to turn up the soil and is located at described front dust
On bar.
According to one embodiment of present invention, floor brush of dust collector also includes: support steamboat, and described support steamboat is located at described
The left side of front dust bar and/or right side, described support steamboat and described front dust bar fit, or described support steamboat with described before
Packing matcrial part between dust bar.
According to one embodiment of present invention, described air channel has the first wall and the second wall, described first wall with
The rear end of described guide face connects and the most upwards extends back, and described second wall is oppositely arranged with described first wall.
Alternatively, described first wall becomes angle γ 1, described angle γ 1 to meet 90≤γ 1 with described guide face junction
≤130°。
According to one embodiment of present invention, minimum range D1 between described second wall and described surface for clearance,
The relation of ultimate range D2 between described rear guide face and described surface for clearance meets: D1≤D2.
Alternatively, on described second wall, the angle between tangent line and the described surface for clearance of any point is γ 2, described
Angle γ 2 meets 0 ＜ γ 2≤50 °.
According to one embodiment of present invention, at least side of described body also has the side air inlet connected with described air channel
Mouthful.
Vacuum cleaner according to a second aspect of the present invention, including body with according to the vacuum cleaner of the present invention above-mentioned first aspect ground
Brush.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from combining the accompanying drawings below description to embodiment and will become
Substantially with easy to understand, wherein:
Fig. 1 is the schematic diagram of floor brush of dust collector according to embodiments of the present invention；
Fig. 2 is the part sectioned view at the pump orifice of floor brush of dust collector according to embodiments of the present invention；
Fig. 3 is the sectional view of floor brush of dust collector according to embodiments of the present invention；
Fig. 4 is the sectional view of floor brush of dust collector in accordance with another embodiment of the present invention；
Fig. 5 is the sectional view of floor brush of dust collector according to embodiments of the present invention；
Fig. 6 is the sectional view of the floor brush of dust collector according to further embodiment of the present invention；
Fig. 7 is the schematic diagram of another angle of the floor brush of dust collector shown in Fig. 1；
Fig. 8 is the front view for testing the noise of floor brush of dust collector noise test system；
Fig. 9 is the top view of the noise test system shown in Fig. 8；
Figure 10 is the test knot of the third-octave of the noise of floor brush of dust collector according to embodiments of the present invention and reference scrubbing brush
Really comparison diagram.
Reference:
100: floor brush of dust collector；101: with reference to scrubbing brush；102: mike；
1: body；11: side-inlet；12: pump orifice；
2: diversion division；21: guide face；22: groove；
211: front guide face；212: rear guide face；2121: the first planes；2122: the second planes；
3: air channel；31: the first walls；32: the second walls；33: outlet；
4: front dust bar；41: nose air intake；
5: support steamboat；6: adapter；7: surface for clearance；8: rear dust bar.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " middle ", " on ", the orientation of the instruction such as D score or position
Relation is based on orientation shown in the drawings or position relationship, is for only for ease of the description present invention and simplifies description rather than refer to
Show or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not manage
Solve as limitation of the present invention.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
The floor brush of dust collector 100 of embodiment according to a first aspect of the present invention is described below with reference to Fig. 1-Figure 10.Vacuum cleaner ground
Brush 100 may be used for vacuum cleaner such as vacuum cleaner.In the application explained below, with floor brush of dust collector 100 for true
Illustrate as a example by vacuum cleaner.Certainly, those skilled in the art are appreciated that floor brush of dust collector 100 can be also used for
Other type of vacuum cleaner, and it is not limited to this vacuum cleaner.
As shown in Fig. 1-Fig. 7, the floor brush of dust collector 100 of embodiment includes according to a first aspect of the present invention: body 1 and water conservancy diversion
Portion 2.
Limit in body 1 and there is on air channel 3, and the front underside of body 1 pump orifice 12 connected with air channel 3, take out
Suction inlet 12 is positioned at the arrival end in air channel 3, and body 1 covers and forms gas when surface 7 for clearance between air channel 3 and surface for clearance 7
The space of close property, the front end of body 1 has the nose air intake 41 connected with air channel 3.When floor brush of dust collector 100 is for vacuum cleaner example
During such as vacuum cleaner, vacuum cleaner such as vacuum, the front underside of body 1 contacts with surface 7 for clearance, treats
Pump orifice 12 is substantially closed on cleaning surface 7, and the airtight volume now constituted between air channel 3 and surface for clearance 7 is the most airtight,
The motor of vacuum cleaner produces negative pressure at airtight volume so that outside air can only enter from nose air intake 41, by front air inlet
The air-flows that mouth 41 enters can take up the foreign material such as the dust on surface 7 for clearance, hair during flowing through pump orifice 12, thus
The foreign material such as the dust taken up, hair are made to enter air channel 3 with air-flow, to realize the cleaning to surface 7 for clearance.
Diversion division 2 is located at the front end of body 1 and diversion division 2 is arranged adjacent to nose air intake 41, and diversion division 2 has guide face 21
So that outside air enters air channel 3 by guide face 21 and nose air intake 41.Thus, be there is the water conservancy diversion of guide face 21 by setting
Portion 2, outside air can be dirty to air channel 3 in the guide functions of the guide face 21 of diversion division 2, improves air-flow at floor brush of dust collector
Mobility status in 100, such that it is able to reduce the air-flow aerodynamic noise that flow at high speed produces in floor brush of dust collector 100.
For verifying the anti-acoustic capability of the floor brush of dust collector 100 according to the present invention, the special vacuum cleaner ground used according to the present invention
The structure fabrication of brush 100 becomes palm (equal proportion model), and represents a suction of floor brush of dust collector performance general level on market
Dirt device scrubbing brush (hereinafter referred to as " with reference to scrubbing brush 101 ") carries out noise and efficiency of dust collection test comparison.
The test procedure of the airborne noise that inventor's reference standard IEC60704-1 domestic and similar applications electrical equipment send, adopts
Layouting with hemisphere face as illustrated in figs. 8-9 the position of method cloth microphone 102, such as, spherical radius r=1.5m, to dust suction
When device scrubbing brush 100 carries out noise test, floor brush of dust collector 100 is placed at the centre of sphere of sphere, and makes an uproar to reference to scrubbing brush 100
During sound test, the most also will be placed at the centre of sphere of sphere with reference to scrubbing brush 101.Through repeatedly noise experiment test, test result such as figure
Shown in 10, noise test result shows: with compared with scrubbing brush 101, use the vacuum cleaner of the floor brush of dust collector 100 of the present invention to make an uproar
Value declines 7dB (decibel), especially at low-frequency range (<200HZ) and medium-high frequency section (>800HZ) level of noise declines to a great extent, drops
Effect of making an uproar is notable.
Wherein, the reason that above-mentioned low-frequency range level of noise declines, for being provided with guide face 21, eliminates air-flow and enters air-tightness
Sharply changing section during space, reduces the generation of air-flow separation maelstrom.The reason that high band noise declines is similarly guide face
The setting of 21 so that air current flow is the most steady, reduces tubulence energy and the turbulence level of flowing.
Additionally, 5.1 parts in inventor reference standard IEC60312, through repeatedly efficiency of dust collection experiment test, test result
Showing, the efficiency of dust collection of reference scrubbing brush 101 is about 94.5%, and the efficiency of dust collection of the floor brush of dust collector 100 according to the present invention
About 96%, efficiency of dust collection has promoted.Its reason is that the floor brush of dust collector 100 according to the present invention optimizes air channel 3, reduces
Air current flow resistance, improves efficiency of dust collection.
As shown in Fig. 1-Fig. 7, when vacuum cleaner such as vacuum, motor works, and forms negative pressure in air channel 3
(pressure is less than atmospheric pressure), outside air will be inhaled into air channel 3 along guide face 21 from nose air intake 41, treat clear simultaneously
Hair, dust and other impurities on reason surface 7 are also followed air and are together drawn in air channel 3, reach cleaning effect.Wherein, by
In the setting of guide face 21, so during air is inhaled into floor brush of dust collector 100 along guide face 21, air will be along water conservancy diversion
Face 21 smooth flow, reduces air-flow and clashes into, with surface 7 for clearance, the vortex produced, eliminate the big whirlpool of separation that sharply changing section causes
Whirlpool, thus reduce the energy loss of air-flow, and energy is conservation, flowed energy loss is low, then the energy being converted to acoustic energy is low,
Thus can reduce aerodynamic noise.Meanwhile, guide face 21 can guide air-flow, makes air current flow more steady, reduces air-flow
The tubulence energy of flowing and turbulence level, reduce aerodynamic noise the most further.
Floor brush of dust collector 100 according to embodiments of the present invention, has the diversion division 2 of guide face 21, in the external world by setting
Air along guide face 21 be inhaled into floor brush of dust collector 100 time, can improve air-flow enter floor brush of dust collector 100 flow regime,
Reduce air-flow and clash into, with surface 7 for clearance, the vortex produced, eliminate the separation Maelstrom that sharply changing section causes, thus reduce gas
The energy loss of stream, reduces aerodynamic noise.Meanwhile, the guiding of air-flow is made air current flow more steady by guide face 21, reduces
The turbulivity of air current flow, thus reduces aerodynamic noise.
In one embodiment of the invention, guide face 21 is positioned at the lower surface of diversion division 2, and guide face 21 includes leading
At least one in stream interface 211 and rear guide face 212, front guide face 211 is the most downward-sloping, and rear guide face 212 is in the past
It is inclined upwardly after to.Such as, as Figure 2-Figure 5, guide face 21 includes front guide face 211 and rear guide face 212, outside air
Guide face 211 before first flowing through when flowing through guide face 21, pass through after guide face 212, along the direction of air current flow, guide face 21
First reduce with the gap on surface 7 for clearance, increase again.By front guide face 211 is arranged to the most downward-sloping so that
During air-flow flows through front guide face 211 from front to back, a tapered import can be formed, air-flow and above-mentioned import can be reduced
Clash into the vortex produced, reduce the energy loss of air-flow, reduce aerodynamic noise.Rear guide face 212 is inclined upwardly from front to back, makes
Obtaining air-flow after flowing through during guide face 212, gas channel is flaring, according to Coanda effect (when fluid flows with its
When there is mantle friction between the body surface crossed, as long as the curvature of body surface is little, fluid can flow along body surface,
Also known as attached wall effect), air-flow can be attached on rear guide face 212 flowing, eliminates owing to the sudden change of gas channel cross-sectional area is led
The separation vortex caused, reduces the turbulivity of air current flow, and then reduces aerodynamic noise.After additionally, due to, guide face 212 arrives in the past
After be inclined upwardly so that fraction enters air channel 3 rather than along parallel along the tangential direction of rear guide face 212 rear end
Entrance air channel, direction 3 in surface 7 for clearance.
Or, guide face 21 only includes rear guide face 212 (not shown).Front guide face 211 will not be to rear guide face 212
Coanda effect have a significant effect, thus, air-flow can be attached on rear guide face 212 flowing, can eliminate due to air-flow lead to
The separation vortex that road cross-sectional area sudden change causes, reduces the turbulivity of air current flow, and then reduce aerodynamic noise.
Certainly, guide face 21 can also only include front guide face 211, now by the air channel 3 that is connected with guide face 21
The angle of inclination of wall is arranged to less angle (not shown), and now, the premenstrual guide face of air-flow 211 is through above-mentioned less inclination
The guiding of the wall of angle is directly entered air channel 3, and thus the turbulivity of air current flow is little, can reduce aerodynamic noise equally.
Alternatively, at least one in front guide face 211 and rear guide face 212 be formed as at least one cambered surface, at least one
Individual plane or at least one cambered surface and the combination of at least one plane.It is to say, when the most front guide face of guide face 21
When 211, front guide face 211 is formed as at least one cambered surface, at least one plane or at least one cambered surface and at least one is put down
The combination in face；When guide face 21 only after guide face 212 time, rear guide face 212 is formed as at least one cambered surface, at least one puts down
Face or at least one cambered surface and the combination of at least one plane；When guide face 21 include simultaneously front guide face 211 and after water conservancy diversion
During face 212, front guide face 211 and rear guide face 212 can be respectively formed as at least one cambered surface, at least one plane or,
Front guide face 211 and rear guide face 212 are collectively formed by least one cambered surface and at least one plane respectively.May be appreciated
It is that the concrete shape of front guide face 211 and rear guide face 212 specifically can be arranged according to actual requirement, real preferably to meet
Border requirement.Such as, when floor brush of dust collector 100 is restricted by size, front guide face 211 and rear guide face 212 are unsuitable for being designed as
During arc surface, front guide face 211 and rear guide face 212 can be designed as the combination of several planes and cambered surface.
Specifically, as shown in Figure 2 and Figure 4, guide face 21 includes front guide face 211 and rear guide face 212, front guide face
211 is one section of cambered surface, and rear guide face 212 is the first plane 2121 and combination of the second plane 2122, the first plane 2121 and
Smoothly transitted connection by circular arc between two planes 2122.Thus, it is ensured that air-flow, along guide face 21 smooth flow, reduces air-flow
Flow resistance, reduce air-flow energy loss, reduce aerodynamic noise.Front guide face 211 is cambered surface so that the premenstrual water conservancy diversion of air-flow
The tapered import that face 211 enters floor brush of dust collector 100 by nose air intake 41 is rounder and more smooth, reduces air-flow and nose air intake 41
Clash into the vortex produced, reduce the energy loss of air-flow, then reduce aerodynamic noise.Rear guide face 212 is the first plane 2121
Connect with the faying face of the second plane 2122, the first plane 2121 and the second plane 2122 rounding off so that air is by front
The flaring passage in the air channel 3 that air inlet 41 enters floor brush of dust collector 100 is the roundest and the most smooth, and air-flow can be attached to rear guide face
Flow on 212, eliminate the separation vortex caused due to the sudden change of gas channel cross-sectional area, reduce the turbulivity of air current flow,
And then reduction aerodynamic noise.
Certainly, front guide face 211 and rear guide face 212 can also be arc surface, as it is shown on figure 3, thus, air-flow is along front
Guide face 211 and rear guide face 212 smooth flow, can reduce the flow resistance of air-flow, meanwhile, front guide face 211 and after lead
Stream interface 212 is prone to processing.
Alternatively, when guide face 21 includes front guide face 211, front guide face 211 is configured to any point on it
Angle α ＜ between tangent line and surface for clearance 7 60 °.When current guide face 211 is at least one cambered surface, all above-mentioned cambered surfaces
Angle α between tangent line and the surface for clearance 7 of upper any point is satisfied by α ＜ 60 °.Current guide face 211 is at least one
During plane, in the most all above-mentioned planes, the tangent line of any point is parallel with above-mentioned plane, thus all above-mentioned planes with treat clear
Angle α between reason surface 7 is satisfied by α ＜ 60 °.Current guide face 211 is the knot of at least one plane and at least one cambered surface
During conjunction, in front guide face 211, the angle α between all planes and surface for clearance 7 is satisfied by α ＜ 60 °, in front guide face 211
In all cambered surfaces, the angle α between tangent line and the surface for clearance 7 of any point is satisfied by α ＜ 60 °.
Such as, as in figure 2 it is shown, front guide face 211 is one section of cambered surface, and the tangent line of any point in above-mentioned cambered surface with treat
Angle α between cleaning surface 7 is respectively less than 60 °.Thus, it is possible to reduce the air-flow impact to front guide face 211 front end, reduce gas
The energy loss of stream, thus reduce impact noise, air-flow also can be played the effect of water conservancy diversion by the arc shape of the most front guide face 211
Really, reduce the turbulivity of air current flow, and then aerodynamic noise can be reduced.
Further, when guide face 21 includes rear guide face 212, rear guide face 212 is configured to any point on it
Tangent line and surface for clearance 7 between angle β ＜ 20 °.When rear guide face 212 is at least one cambered surface, all above-mentioned arcs
On face, the angle β between tangent line and the surface for clearance 7 of any point is satisfied by β ＜ 20 °.After when, guide face 212 is at least one
During individual plane, in the most all above-mentioned planes, the tangent line of any point is parallel with above-mentioned plane, and all above-mentioned planes are with for clearance
Angle β between surface 7 is satisfied by β ＜ 20 °.After when, guide face 212 is the combination of at least one plane and at least one cambered surface
Time, in rear guide face 212, the angle β between all planes and surface for clearance 7 is satisfied by β ＜ 20 °, institute in rear guide face 212
The angle β between the tangent line of any point in cambered surface and surface for clearance 7 is had to be satisfied by β ＜ 20 °.
Such as, as shown in Figure 2 and Figure 4, rear guide face 212 is the first plane 2121 and combination of the second plane 2122, the
Smoothly transitted connection by circular arc between one plane 2121 and the second plane 2122, and the second plane 2122 and surface 7 for clearance
Between angle more than angle between the first plane 2121 and surface for clearance 7, the second plane 2122 and surface 7 for clearance it
Between angle β meet β ＜ 20 °, now, the angle between the first plane 2121 and surface for clearance 7 in rear guide face 212 is also
Less than 20 °.Thus, air-flow in entered the flaring passage in air channel 3 of floor brush of dust collector 100 by nose air intake 41, air-flow meeting
It is attached on rear guide face 212, and air current flow is more stable, eliminate due to dividing that the sudden change of gas channel cross-sectional area causes
From vortex, reduce the turbulivity of air current flow, and then reduce aerodynamic noise.
In one embodiment of the invention, as in figure 2 it is shown, when guide face 21 includes front guide face 211, front guide face
The length L1 ＞ 2mm in direction before and after 211 projections on surface 7 for clearance, when guide face 21 includes rear guide face 212,
The length L2 ＞ 6mm in direction before and after the projection on surface 7 for clearance of the rear guide face 212.Thereby it is ensured that it is above-mentioned tapered or gradually
The length of the gas channel expanded.
In further embodiment of the present invention, as described in figures 1 and 5, floor brush of dust collector 100 also includes: front dust bar 4,
Front dust bar 4 is located at the front end of body 1, and wherein nose air intake 41 is located on front dust bar 4.Such as, as it is shown in figure 5, front air inlet
Before mouth 41 can be formed by a part for the lower surface of front dust bar 4 is upwardly recessed, and nose air intake 41 runs through along the longitudinal direction
The front surface of dust bar 4 and rear surface.When air-flow is by nose air intake 41, gas channel cross-sectional area reduces, and air-flow is added
Speed, enters in air channel 3 with the foreign material on surface 7 for clearance, reaches cleaning effect.
Alternatively, front dust bar 4 is the lath being made up of plastics or plastics hair, but is not limited to this.
Alternatively, nose air intake 41 is rectangle, trapezoidal or semicircle aperture.
In one embodiment of the invention, when guide face 21 includes front guide face 211 and rear guide face 212, front collection
Dirt bar 4 is between front guide face 211 and rear guide face 212, and as shown in Figure 2 and Figure 5, guide face 21 is separated by front dust bar 4
Become front guide face 211 and rear guide face 212, say, that front guide face 211 and surface 7 for clearance are formed by front dust bar 4
The flaring passage that tapered channels and rear guide face 212 and surface 7 for clearance are formed separates, i.e. before dust bar 4 be positioned at tapered channels
And between flaring passage, and above-mentioned tapered channels is connected by the nose air intake 41 being formed on front dust bar 4 with flaring passage,
Air-flow is when by nose air intake 41, and flow velocity is accelerated, and thus, air-flow is easier to drive surface for clearance, nose air intake 41 front 7
Upper heavier foreign material, cleaning effect is more preferable.
In one embodiment of the invention, portion between leading stream interface 211 and rear guide face 212 on diversion division 2
Point formed in having upwardly recessed groove 22, the upper end of front dust bar 4 to stretch into groove 22 and lower end downwards beyond diversion division 2 with
Floor brush of dust collector 100 is supported on surface 7 for clearance.Such as, as shown in Figure 2 and Figure 5, the cross section of front dust bar 4 can be substantially
T-shaped, its upper end is stuck in groove 22, and its lower end extends downward the guide face 21 exceeding diversion division 2, to play support dust suction
The effect of device scrubbing brush 100, now guide face 21 separates between the upper and lower with surface 7 for clearance, thus air-flow can be preferably at water conservancy diversion
The guide functions in face 21 is dirty to air channel 3, simultaneously by before and after the surface for clearance 7 on front side of airtight volume and front dust bar 4 every
Leave.Thus, during vacuum cleaner such as vacuum, airtight volume forms negative pressure, and outside air is along front guide face
211 premenstrual dust bars 4 flow to after guide face 212, subsequently into air channel 3, in the process, front dust bar 4 front for clearance
Foreign material on surface 7 can be followed air and together be sucked air channel 3, expand the cleaning area of vacuum cleaner, improve cleaning effect
Rate.
Alternatively, the removable front dust bar 4 of floor brush of dust collector 100.Now without arranging groove 22 so that guide face 21 light
Slipping over and cross, and the clearance D apart from surface 7 for clearance is less, such as this gap D meets: D≤2mm, as shown in Figure 6.In the present invention
An embodiment in, minima C of the vertical dimension between upper end and the guide face 21 of nose air intake 41 be less than or equal to 2mm,
I.e. C meets: C≤2mm, as shown in Figure 2.Thereby it is ensured that during airflow passes guide face 21, the gas that nose air intake 41 is forward and backward
Circulation road is tapered, flaring state, does not haves the sudden change of gas channel cross-sectional area, eliminates due to dividing that sharply changing section causes
From vortex, reduce the turbulivity of air current flow, and then reduce aerodynamic noise.
In one embodiment of the invention, nose air intake 41 is multiple, and multiple nose air intake 41 is spaced and turns up the soil
It is located on front dust bar 4.Preferably, multiple nose air intakes 41 are located on front dust bar 4 in uniform way.The most in the example of fig. 1,
Nose air intake 41 is 5, and 5 nose air intakes 41 are uniformly distributed at the length direction of front dust bar 4.
Or, multiple nose air intakes 41 can also non-be located on front dust bar 4 (not shown) in uniform way.Such as, multiple
Nose air intake 41 is symmetrically arranged along front dust bar 4, and the distance between adjacent two nose air intakes 41 is not uniform,
Such as, the distance between adjacent two nose air intakes 41 at front dust bar 4 length direction center is little, away from front dust bar 4
Distance between adjacent two nose air intakes 41 at length direction center is big, i.e. in the past its two ends centrally directed of dust bar 4
Direction, the distance between adjacent two nose air intakes 41 is gradually increased.Thus, due near front dust bar 4 length direction center
Nose air intake 41 relative with the outlet 33 in air channel 3 so that can directly be flowed by its air-flow flowing forwardly into floor brush of dust collector 100
To the outlet 33 in air channel 3, reduce the impact with the left and right sides, air channel 3 wall, reduce impact noise.
In one embodiment of the invention, floor brush of dust collector 100 also includes: support steamboat 5, before support steamboat 5 is located at
The left side of dust bar 4 and/or right side, support steamboat 5 and fit with front dust bar 4, or fill out between support steamboat 5 and front dust bar 4
Fill sealing material workpiece.Such as, as it is shown in fig. 7, support steamboat 5 have two, it is separately positioned on the left and right two ends of front dust bar 4, rises
To supporting the effect of floor brush of dust collector 100, two support steamboats 5 are all fitted in the rear side of front dust bar 4 simultaneously, when air-flow is from side
In time entering air channel 3, can only flow into from the rear side supporting steamboat 5, eliminate support steamboat 5 and do not fit with front dust bar 4 and cause
Bilateral streams the Karman vortex street of formation, thus reduces air-flow and enter the turbulivity in air channel 3, supports steamboat 5 only single sided entry simultaneously
Also reduce the interference to nose air intake 41 air-flow of the air inlet herein, make air current flow steady, and then reduce aerodynamic noise.Wherein,
" Karman vortex street " refer under certain condition permanent come stream when walking around some object, object both sides can periodically come off
Direction of rotation is contrary, the dual-array line vortex of queueing discipline, after nonlinear interaction, forms Karman vortex street, and Karman vortex street is alternately
Can produce vibration when coming off, and send sound effect, this sound is the fluid owing to causing when Karman vortex street periodically comes off
In the sound wave that caused of Pressure fluctuation.
Before supporting steamboat 5 and not being fitted in when the left side of dust bar 4 and/or right side, steamboat 5 and front dust can supported
Packing matcrial part (not shown) between bar 4, with realize air-flow only from support steamboat 5 backside flow enter air channel 3, equally may be used
Support steamboat 5 and front dust bar 4 do not fit the Karman vortex street causing bilateral to stream formation to eliminate, reduce air-flow and enter air channel 3
Turbulivity, reduce the interference to the air-flow of nose air intake 41, make air current flow steady, reduce aerodynamic noise.
In one particular embodiment of the present invention, air channel 3 has the first wall 31 and the second wall 32, the first wall 31
Being connected with the rear end of guide face 21 and the most upwards extend back, the second wall 32 is oppositely arranged with the first wall 31.Such as,
As it is shown in figure 5, the first wall 31 and the second wall about 32 are toward each other, limit between the first wall 31 and the second wall 32
Air channel 3, the front end of the first wall 31 is connected with the rear end of guide face 21, and the first wall 31 can be the roundest and the most smooth
Extending, the second wall 32 can be the cambered surface and/or plane smoothly transitted, and the most upwards extends back.Thus, part
Air-flow is when tilting upward entrance air channel 3 along the rear end tangential direction of rear guide face 212, due to the second wall 32 the most backward
Tilt so that this fraction directly flows out from the outlet 33 in air channel 3, decreases air-flow and the shock of the second wall 32, thus
Decrease the generation of vortex, reduce pneumatic noise and impact noise.Meanwhile, air-flow is without too much hindering, the most swimmingly
Carry foreign material to be flowed out by air channel 3, improve the efficiency of dust collection on surface 7 for clearance when floor brush of dust collector 100 cleans.
Alternatively, as in figure 2 it is shown, the first wall 31 become with guide face 21 junction angle γ 1, angle γ 1 meet 90≤
γ1≤130°.Thus, air-flow can be made steadily to enter air channel 3, ensure that the space size in air channel 3, it is to avoid because of air channel 3 mistake
The little air channel 3 caused blocks.
In one embodiment of the invention, minimum range D1 between the second wall 32 and surface for clearance 7, rear water conservancy diversion
The relation of ultimate range D2 between face 212 and surface for clearance 7 meets: D1≤D2, as shown in Figure 2 and Figure 5, thus, and part
Air-flow, when not being to tilt upward entrance air channel 3 along the rear end tangential direction of rear guide face 212, reduces air-flow and the second wall
The shock of 32 front ends, thus decrease the generation of vortex, reduce pneumatic noise and impact noise.
Alternatively, on the second wall 32, the angle between tangent line and the surface for clearance 7 of any point is γ 2, and angle γ 2 is full
Foot 0 ＜ γ 2≤50 °.When the second wall 32 is at least one plane, and can smoothly transit between all above-mentioned planes, and
In all above-mentioned planes, the tangent line of any point is parallel with above-mentioned plane, now, between all above-mentioned planes and surface for clearance 7
Angle γ 2 be satisfied by 0 ＜ γ 2≤50 °.When the second wall 32 is at least one cambered surface, and can between all above-mentioned cambered surfaces
To smoothly transit, now, in all above-mentioned cambered surfaces, angle γ 2 between tangent line and the surface for clearance 7 of any point is satisfied by 0 ＜
γ2≤50°.Such as, as shown in Figure 6, the second wall 32 is one section of plane, now the second wall 32 and the folder on surface 7 for clearance
Angle γ 2 meets 0 ＜ γ 2≤50 °, thus, can reduce the air-flow shock to the second wall 32, reduces the generation of air-flow vortex, fall
Low impact noise.
In one embodiment of the invention, at least side of body 1 also has the side-inlet 11 connected with air channel 3.
Preferably, all there is the side-inlet 11 connected with air channel 3 both sides of body 1, as shown in Fig. 1, Fig. 5 and Fig. 7, work as floor brush of dust collector
During 100 work, lateral airflow is mingled with the foreign material on surface 7 for clearance in side-inlet 11 enters air channel 3, thus, and can be clear
The foreign material that reason floor brush of dust collector 100 is lateral, improve efficiency of dust collection.
Further, as it is shown in fig. 7, floor brush of dust collector 100 also includes adapter 6 and rear dust bar 8, adapter 6 is used for
Connecting the flexible pipe (not shown) of floor brush of dust collector 100 and motor of dust collector, rear dust bar 8 is fine hair shape lath, fine by plastics
Dimension is made, but is not limited to this, and rear dust bar 8 plays the effect of sealing air flue 3, improves the suction force of above-mentioned airtight volume.
The vacuum cleaner of embodiment according to a second aspect of the present invention, implements including body with according to the above-mentioned first aspect of the present invention
The floor brush of dust collector 100 of example.
Vacuum cleaner according to embodiments of the present invention, by using above-mentioned floor brush of dust collector 100, it is possible to decrease vacuum cleaner works
Time noise, at the same time it can also be improve vacuum cleaner efficiency of dust collection.
Other of vacuum cleaner according to embodiments of the present invention constitute and operate for those of ordinary skills
It is all known, is not detailed herein.
In the description of this specification, reference term " embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " concrete example " or " some examples " etc. means to combine this embodiment or the specific features of example description, knot
Structure, material or feature are contained at least one embodiment or the example of the present invention.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or spy
Point can combine in any one or more embodiments or example in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
Embodiment can be carried out multiple change in the case of departing from the principle of the present invention and objective, revise, replace and modification, the present invention
Scope limited by claim and equivalent thereof.
Claims (18)
1. a floor brush of dust collector, it is characterised in that including:
Body, described internal limiting has the pump orifice connected with described air channel on air channel and front underside, described
Body covers and forms bubble-tight space when surface for clearance between described air channel and described surface for clearance, before described body
End has the nose air intake connected with described air channel；
Diversion division, described diversion division is located at the front end of described body and neighbouring described nose air intake setting, and described diversion division has
Guide face is so that outside air enters described air channel by described guide face and described nose air intake.
Floor brush of dust collector the most according to claim 1, it is characterised in that described guide face is positioned at the following table of described diversion division
Face, and described guide face includes that at least one in front guide face and rear guide face, described front guide face dip down from front to back
Tiltedly, described rear guide face is inclined upwardly from front to back.
Floor brush of dust collector the most according to claim 2, it is characterised in that in described front guide face and described rear guide face
Described at least one be formed as at least one cambered surface, at least one plane or at least one cambered surface and at least one plane
In conjunction with.
Floor brush of dust collector the most according to claim 3, it is characterised in that when described guide face includes described front guide face
Time, described front guide face is configured to the angle α ＜ 60 ° between the tangent line of any point on it and described surface for clearance.
Floor brush of dust collector the most according to claim 3, it is characterised in that when described guide face include described after guide face
Time, described rear guide face is configured to the angle β ＜ 20 ° between the tangent line of any point on it and described surface for clearance.
Floor brush of dust collector the most according to claim 2, it is characterised in that when described guide face includes described front guide face
Time, the length L1 ＞ 2mm in direction before and after the projection on described surface for clearance of the described front guide face；When described water conservancy diversion bread
When including described rear guide face, the length L2 ＞ 6mm in direction before and after the projection on described surface for clearance of the described rear guide face.
Floor brush of dust collector the most according to claim 2, it is characterised in that also include: front dust bar, described front dust bar sets
In the front end of described body, wherein said nose air intake is located on described front dust bar.
Floor brush of dust collector the most according to claim 7, it is characterised in that when described guide face include described front guide face and
During described rear guide face, described front dust bar is between described front guide face and described rear guide face.
Floor brush of dust collector the most according to claim 8, it is characterised in that be positioned on described diversion division described front guide face and
Be formed in part with upwardly recessed groove between described rear guide face, in described groove is stretched in the upper end of described front dust bar and
Lower end exceeds downwards diversion division to support described scrubbing brush on described surface for clearance.
Floor brush of dust collector the most according to claim 9, it is characterised in that the upper end of described nose air intake and described water conservancy diversion
Minima C of the vertical dimension between face is less than or equal to 2mm.
11. floor brush of dust collector according to claim 7, it is characterised in that described nose air intake is multiple and is spaced
Turn up the soil and be located on described front dust bar.
12. floor brush of dust collector according to claim 7, it is characterised in that also include:
Supporting steamboat, described support steamboat is located at left side and/or the right side of described front dust bar, described support steamboat with described before
Dust bar is fitted, or packing matcrial part between described support steamboat and described front dust bar.
13. according to the floor brush of dust collector according to any one of claim 1, it is characterised in that described air channel has the first wall
With the second wall, described first wall is connected with the rear end of described guide face and the most upwards extends back, described second wall
Face is oppositely arranged with described first wall.
14. according to the floor brush of dust collector described in claim 1-13, it is characterised in that described first wall is with described guide face even
The place of connecing becomes angle γ 1, described angle γ 1 to meet 90≤γ 1≤130 °.
15. floor brush of dust collector according to claim 13, it is characterised in that described second wall and described surface for clearance
Between minimum range D1, described rear guide face and described surface for clearance between ultimate range D2 relation meet: D1≤
D2。
16. according to the floor brush of dust collector described in claim 1-13, it is characterised in that the tangent line of any point on described second wall
And the angle between described surface for clearance is γ 2, described angle γ 2 meets 0 ＜ γ 2≤50 °.
17. floor brush of dust collector according to claim 1, it is characterised in that at least side of described body also has and institute
State the side-inlet of air channel connection.
18. 1 kinds of vacuum cleaners, it is characterised in that including:
Body；
According to the floor brush of dust collector according to any one of claim 1-17, described scrubbing brush is by connecting tube with described body even
Logical.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610669546.5A CN106073634B (en) | 2016-08-15 | 2016-08-15 | Dust collector floor brush and dust collector with same |
| PCT/CN2016/104126 WO2018032616A1 (en) | 2016-08-15 | 2016-10-31 | Floor brush of dust collector and dust collector having same |
| ES16913371T ES2861522T3 (en) | 2016-08-15 | 2016-10-31 | Dust collector and dust collector floor brush having the same |
| EP16913371.7A EP3461385B1 (en) | 2016-08-15 | 2016-10-31 | Floor brush of dust collector and dust collector having same |
| US16/233,127 US11071424B2 (en) | 2016-08-15 | 2018-12-27 | Floor brush for cleaning appliance and cleaning appliance having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610669546.5A CN106073634B (en) | 2016-08-15 | 2016-08-15 | Dust collector floor brush and dust collector with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106073634A true CN106073634A (en) | 2016-11-09 |
| CN106073634B CN106073634B (en) | 2020-04-03 |
Family
ID=58069188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610669546.5A Active CN106073634B (en) | 2016-08-15 | 2016-08-15 | Dust collector floor brush and dust collector with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106073634B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106889942A (en) * | 2017-04-24 | 2017-06-27 | 江苏美的清洁电器股份有限公司 | Air guide structure and dust catcher before the motor of dust catcher |
| CN108903806A (en) * | 2018-08-17 | 2018-11-30 | 莱克电气股份有限公司 | Air duct fast switching structure for HEPA self-cleaning type dust collector |
| CN110495821A (en) * | 2019-09-05 | 2019-11-26 | 北京石头世纪科技股份有限公司 | Cleaning robot and control method thereof |
| CN110680237A (en) * | 2018-07-04 | 2020-01-14 | 夏普株式会社 | Electric vacuum cleaner |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007282768A (en) * | 2006-04-14 | 2007-11-01 | Matsushita Electric Ind Co Ltd | Vacuum cleaner |
| CN101313830A (en) * | 2007-05-28 | 2008-12-03 | 三星光州电子株式会社 | Suction brush for vacuum cleaner |
| CN201861563U (en) * | 2010-11-23 | 2011-06-15 | 莱克电气股份有限公司 | Pneumatic floor brush for dust collector |
| EP2457481A1 (en) * | 2010-11-26 | 2012-05-30 | Seb S.A. | Vacuum cleaner nozzle |
| FR2999410A1 (en) * | 2012-12-19 | 2014-06-20 | Seb Sa | TRAPPER FOR VACUUM SUCKER |
| CN103919508A (en) * | 2014-05-05 | 2014-07-16 | 苏州双荣橡塑有限公司 | Ground brush of dust collector |
| CN104703524A (en) * | 2012-12-21 | 2015-06-10 | 伊莱克斯公司 | Passive vacuum cleaner nozzle with an air intake aperture |
| CN105167713A (en) * | 2015-09-25 | 2015-12-23 | 江苏美的清洁电器股份有限公司 | Ground brush and dust remover with same |
| CN105615768A (en) * | 2016-01-28 | 2016-06-01 | 江苏美的清洁电器股份有限公司 | Ground brush assembly of dust collector and dust collector with ground brush assembly |
| CN205411083U (en) * | 2016-03-01 | 2016-08-03 | 江苏美的清洁电器股份有限公司 | Scrubbing brush and dust catcher |
| CN206044534U (en) * | 2016-07-11 | 2017-03-29 | 江苏美的清洁电器股份有限公司 | Ground brush assemblies and vacuum cleaner |
| CN206443652U (en) * | 2016-08-15 | 2017-08-29 | 美的集团股份有限公司 | Floor brush of dust collector and the dust catcher with it |
-
2016
- 2016-08-15 CN CN201610669546.5A patent/CN106073634B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007282768A (en) * | 2006-04-14 | 2007-11-01 | Matsushita Electric Ind Co Ltd | Vacuum cleaner |
| CN101313830A (en) * | 2007-05-28 | 2008-12-03 | 三星光州电子株式会社 | Suction brush for vacuum cleaner |
| CN201861563U (en) * | 2010-11-23 | 2011-06-15 | 莱克电气股份有限公司 | Pneumatic floor brush for dust collector |
| EP2457481A1 (en) * | 2010-11-26 | 2012-05-30 | Seb S.A. | Vacuum cleaner nozzle |
| FR2999410A1 (en) * | 2012-12-19 | 2014-06-20 | Seb Sa | TRAPPER FOR VACUUM SUCKER |
| CN104703524A (en) * | 2012-12-21 | 2015-06-10 | 伊莱克斯公司 | Passive vacuum cleaner nozzle with an air intake aperture |
| CN103919508A (en) * | 2014-05-05 | 2014-07-16 | 苏州双荣橡塑有限公司 | Ground brush of dust collector |
| CN105167713A (en) * | 2015-09-25 | 2015-12-23 | 江苏美的清洁电器股份有限公司 | Ground brush and dust remover with same |
| CN105615768A (en) * | 2016-01-28 | 2016-06-01 | 江苏美的清洁电器股份有限公司 | Ground brush assembly of dust collector and dust collector with ground brush assembly |
| CN205411083U (en) * | 2016-03-01 | 2016-08-03 | 江苏美的清洁电器股份有限公司 | Scrubbing brush and dust catcher |
| CN206044534U (en) * | 2016-07-11 | 2017-03-29 | 江苏美的清洁电器股份有限公司 | Ground brush assemblies and vacuum cleaner |
| CN206443652U (en) * | 2016-08-15 | 2017-08-29 | 美的集团股份有限公司 | Floor brush of dust collector and the dust catcher with it |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106889942A (en) * | 2017-04-24 | 2017-06-27 | 江苏美的清洁电器股份有限公司 | Air guide structure and dust catcher before the motor of dust catcher |
| CN106889942B (en) * | 2017-04-24 | 2019-08-30 | 江苏美的清洁电器股份有限公司 | Air guide structure and dust catcher before the motor of dust catcher |
| CN110680237A (en) * | 2018-07-04 | 2020-01-14 | 夏普株式会社 | Electric vacuum cleaner |
| CN108903806A (en) * | 2018-08-17 | 2018-11-30 | 莱克电气股份有限公司 | Air duct fast switching structure for HEPA self-cleaning type dust collector |
| CN108903806B (en) * | 2018-08-17 | 2023-08-22 | 莱克电气股份有限公司 | Air duct quick switching structure for self-cleaning type HEPA dust collector |
| CN110495821A (en) * | 2019-09-05 | 2019-11-26 | 北京石头世纪科技股份有限公司 | Cleaning robot and control method thereof |
| CN110495821B (en) * | 2019-09-05 | 2023-11-28 | 北京石头世纪科技股份有限公司 | Cleaning robot and control method thereof |
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| CN106073634B (en) | 2020-04-03 |
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Effective date of registration: 20201225 Address after: 528311 4 Global Innovation Center, industrial road, Beijiao Town, Shunde District, Foshan, Guangdong, China Patentee after: GUANGDONG MEIDI WHITE HOUSEHOLD ELECTRICAL APPLIANCE TECHNOLOGY INNOVATION CENTER Co.,Ltd. Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528311, 26-28, B District, Mei headquarters building, 6 Mei Road, Beijiao Town, Shunde District, Foshan, Guangdong. Patentee before: MIDEA GROUP Co.,Ltd. |