CN109247865A - Dust catcher and its motor mould group - Google Patents
Dust catcher and its motor mould group Download PDFInfo
- Publication number
- CN109247865A CN109247865A CN201710576750.7A CN201710576750A CN109247865A CN 109247865 A CN109247865 A CN 109247865A CN 201710576750 A CN201710576750 A CN 201710576750A CN 109247865 A CN109247865 A CN 109247865A
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- China
- Prior art keywords
- shell
- mould group
- motor mould
- dust catcher
- resonant cavity
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Classifications
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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
- A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
-
- 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
-
- 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
- A47L9/22—Mountings for motor fan assemblies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Electric Suction Cleaners (AREA)
Abstract
The invention discloses a kind of dust catcher and its motor mould groups.Motor mould group includes: shell, and the front side of shell is equipped with air inlet, and the rear side of shell is equipped with air outlet；Electric machine assembly, electric wind component are set inside the shell；Silencing means, silencing means are arranged adjacent to air outlet, and silencing means sets on the shell and be equipped at least one resonant cavity, and one of side wall of resonant cavity is equipped with the trunnion being connected to resonant cavity, and trunnion is connected to air duct.Motor mould group according to an embodiment of the present invention, sound deadening is played using Helmholz resonance principle, it can have and targetedly eliminate the noise to noise main contributions frequency, solves the small bring noise optimization bottleneck of motor body size, flow losses are minimum simultaneously, it solves the problems, such as, sacrifice performance big using noise-reduction methods bring flow resistances such as acoustical cotton, blockings, solves the problems, such as that active denoising method is at high cost, real experiences are bad.
Description
Technical field
The present invention relates to cleaning applications, more particularly, to a kind of dust catcher and its motor mould group.
Background technique
The noise problem of dust catcher is the most important pain spot of consumer in recent years, to this problem mainly from noise in industry
Three source, propagation path and recipient aspects are solved.Dust catcher mainly has electric fan and the big noise source of scrubbing brush two, comes at present
It says, reducing the most important means of Sound source noise is to improve air-flow flowing, reduces the pressure pulsations (aerodynamic noise) in flow field, adds branch
The means such as support, damping (structural noise), but since motor body size is small, be difficult to do many changes in small space.
It is more special using the sound-absorbing materials such as silencing cotton absorption partial noise or using labyrinth etc. for noise transmission path
Structure slackens acoustic energy in the way of reflection, refraction or diffusion etc., but above-mentioned noise reduction mode is substantially a kind of sacrifice performance
Noise-reduction method, and it is uneconomical, and mainly high-frequency noise is acted on obviously, it is poor to the specific aim of different frequency.
In recent years, the active noise reductions measure such as noise elimination earphone continues to bring out, and still, there is cost and use for active denoising method
The problems such as family is using comfortable, convenience, application is few at present.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.
For this purpose, the present invention proposes a kind of motor mould group, sound deadening is played using Helmholz resonance principle.
The present invention also proposes a kind of dust catcher with above-mentioned motor mould group.
The motor mould group of dust catcher according to an embodiment of the present invention, comprising: the front side of shell, the shell is equipped with air inlet
Mouthful, the rear side of the shell is equipped with air outlet；Electric machine assembly, the electric wind component are located in the shell, the electric machine assembly
Cooperate with shell to limit the air duct being connected to the air inlet and the air outlet；Silencing means, the silencing means are adjacent
The nearly air outlet setting, the silencing means set on the housing and are equipped at least one resonant cavity, the resonant cavity
One of side wall is equipped with the trunnion being connected to the resonant cavity, and the trunnion is connected to the air duct.
The motor mould group of dust catcher according to an embodiment of the present invention is disappeared by the way that silencing means is arranged at neighbouring air outlet
Mixer includes that resonant cavity and trunnion can have targetedly to play sound deadening using Helmholz resonance principle
It eliminates the noise to noise main contributions frequency, solves the small bring noise optimization bottleneck of motor body size, while flowing damage
Lose it is minimum, solve the problems, such as it is big using the noise-reduction methods bring such as acoustical cotton, blocking flow resistance, sacrifice performance, and due to
The structural modification of silencing means is small, and cost is relatively low, solves the problems, such as that active denoising method is at high cost, real experiences are bad.
In a specific embodiment of the present invention, the trunnion runs through the shell, institute in the thickness direction of the housing
Stating silencing means includes the open resonant shell in front side, the resonant shell be located on the outer surface of the rear end of the shell with institute
It states and limits the resonant cavity between shell.
Preferably, the trunnion is multiple.
Further, the resonant cavity is multiple.
In specific example of the invention, each resonant cavity is correspondingly arranged multiple trunnions.
In some embodiments of the invention, the resonant shell includes fixing bracket and multiple demarcation plates, and the multiple point
Partition is located on the fixed bracket, and the outer surface of the fixed bracket and each demarcation plate respectively with the shell connects
Touching is to limit multiple resonant cavities.
Optionally, the resonant shell is integrally formed part.
In some embodiments of the invention, the inner wall of the shell is equipped with reinforcing rib, the adjacent resonant cavity pair
A reinforcing rib is equipped between the trunnion answered.
In some embodiments of the invention, the support protrusion of annular is set on the outer surface of the shell, it is described total
At least part of vibration shell is extend into the support protrusion.
In some embodiments of the invention, multiple resonant cavities are configured to frequency of noise elimination difference.
In some embodiments of the invention, sound absorber materials and parts are equipped in the resonant cavity.
In some embodiments of the invention, the air duct includes the silencers channel being located in the electric machine assembly, described
Silencing means is located at the downstream of the silencers channel.
Dust catcher according to an embodiment of the present invention, including motor mould group according to the above embodiment of the present invention.
Dust catcher according to an embodiment of the present invention utilizes Helmholz resonance principle by the way that above-mentioned motor mould group is arranged
Sound deadening is played, can have and targetedly eliminate the noise to noise main contributions frequency, it is small to solve motor body size
Bring noise optimization bottleneck, while flow losses are minimum, solve and flowed using the noise-reduction methods bring such as acoustical cotton, blocking
Resistance is big, sacrifices the problem of performance, and since the structural modification of silencing means is small, cost is relatively low, solves active denoising method
Problem at high cost, real experiences are bad.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the main view according to the motor mould group of the embodiment of the present invention；
Fig. 2 is the sectional view according to the motor mould group of the embodiment of the present invention；
Fig. 3 is the side view according to the motor mould group of the embodiment of the present invention；
Fig. 4 is the partial schematic diagram according to the motor mould group of the embodiment of the present invention；
Fig. 5 is the schematic diagram according to the rear cover of the shell of the motor mould group of some embodiments of the invention；
Fig. 6 is the schematic diagram according to the rear cover of the shell of the motor mould group of other embodiments of the invention；
Fig. 7 is the schematic diagram according to the rear cover of the shell of the motor mould group of still other embodiments of the present invention；
Fig. 8 is the schematic diagram according to the resonant shell of the silencing means of the embodiment of the present invention.
Appended drawing reference:
Motor mould group 100,
Shell 1, air inlet 10, air outlet 11, outer cover 12, front cover 13, rear cover 14, reinforcing rib 15, support protrusion 16,
Electric machine assembly 2, motor 20, motor cover 21,
Silencing means 3, resonant cavity 30, trunnion 31, resonant shell 32, fixed bracket 320, demarcation plate 321,
Air-inlet grille 4.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " axial direction ",
The orientation or positional relationship of the instructions such as " radial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.In addition, defining " first ", " second "
Feature can explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated,
The meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The motor mould group 100 of dust catcher according to an embodiment of the present invention is described below with reference to Fig. 1-Fig. 8, wherein dust catcher one
As include gathering dust component and filter element, motor mould group 100 refer to gathering dust component downstream to the upstream of filter element mould
Block ducting assembly.Specifically, the component that gathers dust can be dirt bag or dirt cup, and filter element can be HEAP filter screen.
As shown in Figure 1, motor mould group 100 according to an embodiment of the present invention, comprising: shell 1, electric machine assembly 2 and noise reduction dress
3 are set, wherein the front side of shell 1 is equipped with air inlet 10, and the rear side of shell 1 is equipped with air outlet 11.Specifically, shell 1 includes front cover
13, the rear and front end of outer cover 12 and rear cover 14, outer cover 12 is opened wide, and front cover 13 is located at the front end of outer cover 12 and is equipped with air inlet 10,
Rear cover 14 is located at the rear end of outer cover 12 and is equipped with air outlet 11.Further, it can be set at air inlet 10 positioned at silencing means 3
The air-inlet grille 4 of front side.
Electric machine assembly 2 is located in shell 1, and electric machine assembly 2 and shell 1 cooperate to limit and air inlet 10 and air outlet 11
The air duct of connection.It is understood that electric machine assembly 2 includes motor cover 21 and motor 20, motor 20 is located in motor cover 21, electricity
Machine 20 is connected to drive wheel rotation to guide in air inlet duct outside air from air inlet 10 with impeller, and by the sky in air duct
Conductance is to air outlet 11.
Silencing means 3 is arranged adjacent to air outlet 11, and silencing means 3 is located on shell 1 and is equipped at least one resonant cavity 30,
One of side wall of resonant cavity 30 is equipped with the trunnion 31 being connected to resonant cavity 30, and trunnion 31 is connected to air duct.Wherein, it resonates
30 shape of chamber can be cuboid, spherical shape or the polymorphic structure for meeting complete machine structure demand etc..
Specifically, during the air in air duct flows to air outlet 11, portion of air can by trunnion 31 into
Enter into resonant cavity 30, at this time due to following three in terms of principle can play the role of noise elimination: 1) in trunnion 31 gas as piston
Velocity perturbation caused by the same impedance sound wave effect；2) the hole neck structure that trunnion 31 is formed can generate friction and resistance to gas
Buddhist nun, sound energy consumption；3) resonant cavity 30 has the inhibition (spring-like) to pressure oscillation, while resonant cavity 30 is closed, gas
Stream energy loss is minimum.It follows that Helmholz resonance noise elimination cavity is used as using resonant cavity 30 by setting silencing means 3,
It is obvious effect can be weakened to target frequency sound pressure level.
After being determined for 30 volume of resonant cavity, in the case where guaranteeing 31 length of trunnion and sectional area unanimous circumstances, noise reduction frequency
For certain value, and number of aperture is more (31 diameter of trunnion is smaller), and noise reduction effect is better under the frequency, it is proposed that number of aperture is meeting work
Skill is more than or equal to 1, when more than one on the basis of requiring, each hole is perpendicular to uniformly distributed on air channel.
According to actual needs, (or multiple trunnions 31 are equivalent at single trunnion by the 31 diameter of section d of single trunnion of resonant cavity 30
31 diameters) with runner (air duct at trunnion 31) width L need to meet L less than or equal to 3d, need to be arranged when beyond this range it is multiple simultaneously
Join trunnion 31 until range as defined in meeting.31 middle line of trunnion is vertical with runner (air duct at trunnion 31) middle line holding, positive and negative
When deviation is more than 20 °, frequency of noise elimination formula need to be modified, need to meet angle requirement under normal circumstances.Runner short transverse
Equivalent diameter ds need to be less than or equal to 5d (single 31 diameter of trunnion or more trunnions 31 are equivalent at single 31 diameter of trunnion).
The motor mould group 100 of dust catcher according to an embodiment of the present invention passes through the setting noise reduction dress at neighbouring air outlet 11
Set 33, silencing means 33 includes resonant cavity 30 and trunnion 31, can be with to play sound deadening using Helmholz resonance principle
With targetedly eliminating the noise to noise main contributions frequency, solves the small bring noise optimization bottle of 20 body dimension of motor
Neck, while flow losses are minimum, solve, sacrifice performance big using the noise-reduction methods bring such as acoustical cotton, blocking flow resistance
The problem of, and since the structural modification of silencing means 33 is small, cost is relatively low, solves that active denoising method is at high cost, practical body
Test bad problem.
Preferably, sound absorber materials and parts are equipped in resonant cavity 30, so as to further increase the noise reduction effect of silencing means 3
Fruit.
In some embodiments of the invention, as Figure 1-Figure 8, trunnion 31 is on the thickness direction of shell 1 through outer
Shell 1, silencing means 3 include the open resonant shell 32 in front side, resonant shell 32 be located on the outer surface of the rear end of shell 1 with it is outer
Resonant cavity 30 is limited between shell 1.So that the structure of silencing means 3 is simple, convenient for the installation of silencing means 3.Specifically,
Resonant shell 32 is located on the outer surface of rear cover 14.Of course, it should be understood that the structure of silencing means 3 and setting position are unlimited
In this, such as silencing means 3 can be the shell being located on the internal perisporium of shell 1, and trunnion is located on shell, shell and shell 1
Between limit resonant cavity, as long as guaranteeing that silencing means 3 can be equipped with the resonant cavity being connected to air duct by trunnion.
Optionally, as shown in figure 4, the support protrusion 16 of the annular of support resonant shell 32 is arranged on the outer surface of shell 1,
At least part of resonant shell 32 is extend into support protrusion 16, to be not only convenient for the assembly of resonant shell 32, can also be improved
The airtightness of resonant cavity 30.Further, resonant shell 32 and support protrusion 16 are interference fitted, to further be convenient for resonant shell 32
Assembly, further increase the airtightness of resonant cavity 30, resonant shell 32 can also be disassembled and be cleaned, avoid resonant cavity
30 dust stratifications are too many and influence erasure effect.It is understood that can be matched using other between resonant shell 32 and support protrusion 16
Conjunction mode is for example clasped.
Preferably, trunnion 31 is multiple.So that the noise reduction effect of silencing means 3 is more preferable.Further, resonant cavity 30
To be multiple, each resonant cavity 30 is correspondingly arranged multiple trunnions 31.So as to the noise reduction frequency by adjusting each resonant cavity 30,
The noise reduction effect of silencing means 3 can be made more preferable.It is highly preferred that multiple resonant cavities 30 are configured to frequency of noise elimination difference.From
And the noise reduction effect of motor mould group 100 can be improved.Of course, it should be understood that when resonant cavity 30 is multiple, each resonance
Chamber 30 can be correspondingly arranged a trunnion 31 (as shown in Figure 6).
As shown in figure 8, in some examples of the invention, resonant shell 32 includes fixed bracket 320 and multiple demarcation plates
321, multiple demarcation plates 321 are located on fixed bracket 320, and fixed bracket 320 and each demarcation plate 321 are outer with shell 1 respectively
Side surface is contacted to limit multiple resonant cavities 30.That is, each resonant cavity 30 is by demarcation plate 321, fixed 320 and of bracket
Shell 1 limits, and two adjacent resonant cavities 30 are spaced apart by demarcation plate 321.So that the structure of resonant shell 32 is simple.
Optionally, resonant shell 32 is integrally formed part.
As shown in Figure 5-Figure 7, optionally, the inner wall of shell 1 is equipped with reinforcing rib 15, the adjacent corresponding larynx of resonant cavity 30
A reinforcing rib 15 is equipped between pipe 31.It thereby may be ensured that the erasure effect of each resonant cavity 30, while shell 1 can be improved
Structural strength.
In a preferred embodiment of the invention, air duct includes the silencers channel being located in electric machine assembly 2, and silencing means 3
In the downstream of silencers channel.That is, air enters in shell 1 from air inlet 10, disappearing in electric machine assembly 2 is then flowed through
Sound channel is flowed after silencers channel outflow towards air outlet 11 later, and the air flowed out from silencers channel is flowing through noise reduction dress
It can be eliminated the noise by silencing means 3 during setting 3.Consequently facilitating the assembly of silencing means 3, can also reduce and enter silencing means
3 amount of dust avoids 30 dust stratification of resonant cavity too many and influences erasure effect.
In a specific embodiment of the present invention, motor cover 21 is multilayered structure, between the periphery wall and shell 1 of motor cover 21
The flowing space being connected to air outlet 11 is limited, the outermost layer structure of motor cover 21 is equipped with the outlet being connected to the flowing space,
Noise reduction air duct is limited between the adjacent two layers structure of motor cover 21, the innermost layer structure of motor cover 21 is equipped with import, thus
Mazy silencers channel is limited in motor cover 21 to further decrease noise, the air flowed into from air inlet 10 passes through motor
It is flowed into the flowing space from outlet after the silencers channel entered in motor cover 21 after 20 by import, finally from 11 row of air outlet
Out.
Dust catcher according to an embodiment of the present invention, including motor mould group 100 according to the above embodiment of the present invention.
Dust catcher according to an embodiment of the present invention utilizes Helmholz resonance original by the way that above-mentioned motor mould group 100 is arranged
Reason plays sound deadening, can have and targetedly eliminates the noise to noise main contributions frequency, solves 20 ontology ruler of motor
Very little small bring noise optimization bottleneck, while flow losses are minimum, solve using the noise-reduction methods bring such as acoustical cotton, blocking
Flow resistance is big, sacrifices the problem of performance, and since the structural modification of silencing means 3 is small, cost is relatively low, solves active noise reduction
The problem that method is at high cost, real experiences are bad.
Other compositions such as cleaning part and traveling component of dust catcher according to an embodiment of the present invention etc. and operation pair
For those of ordinary skill in the art be all it is known, be not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (13)
1. a kind of motor mould group of dust catcher characterized by comprising
Shell, the front side of the shell are equipped with air inlet, and the rear side of the shell is equipped with air outlet；
Electric machine assembly, the electric wind component are located in the shell, the electric machine assembly and shell cooperate with limit with it is described
The air duct that air inlet is connected to the air outlet；
Silencing means, the silencing means are arranged adjacent to the air outlet, and the silencing means sets on the housing and is equipped with
At least one resonant cavity, one of side wall of the resonant cavity are equipped with the trunnion being connected to the resonant cavity, the trunnion
It is connected to the air duct.
2. the motor mould group of dust catcher according to claim 1, which is characterized in that thickness of the trunnion in the shell
Side extends upward through the shell, and the silencing means includes the open resonant shell in front side, and the resonant shell is located at the shell
To limit the resonant cavity between the shell on the outer surface of rear end.
3. the motor mould group of dust catcher according to claim 2, which is characterized in that the trunnion is multiple.
4. the motor mould group of dust catcher according to claim 3, which is characterized in that the resonant cavity is multiple.
5. the motor mould group of dust catcher according to claim 4, which is characterized in that each resonant cavity is correspondingly arranged more
A trunnion.
6. the motor mould group of dust catcher according to claim 4, which is characterized in that the resonant shell include fixed bracket and
Multiple demarcation plates, the multiple demarcation plate are located on the fixed bracket, the fixed bracket and each demarcation plate difference
It is contacted with the outer surface of the shell to limit multiple resonant cavities.
7. the motor mould group of dust catcher according to claim 6, which is characterized in that the resonant shell is integrally formed part.
8. the motor mould group of dust catcher according to claim 3, which is characterized in that the inner wall of the shell, which is equipped with, to be reinforced
Muscle is equipped with a reinforcing rib between the corresponding trunnion of the adjacent resonant cavity.
9. the motor mould group of dust catcher according to claim 2, which is characterized in that be arranged on the outer surface of the shell
The support protrusion of annular, at least part of the resonant shell are extend into the support protrusion.
10. motor mould group according to claim 4, which is characterized in that multiple resonant cavities are configured to frequency of noise elimination
It is different.
11. motor mould group according to claim 1, which is characterized in that be equipped with sound absorber materials and parts in the resonant cavity.
12. the motor mould group of dust catcher described in any one of -11 according to claim 1, which is characterized in that the air duct includes
The silencers channel being located in the electric machine assembly, the silencing means are located at the downstream of the silencers channel.
13. a kind of dust catcher, which is characterized in that including motor mould group described according to claim 1 any one of -12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576750.7A CN109247865A (en) | 2017-07-14 | 2017-07-14 | Dust catcher and its motor mould group |
| PCT/CN2018/095570 WO2019011314A1 (en) | 2017-07-14 | 2018-07-13 | Vacuum cleaner and motor module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576750.7A CN109247865A (en) | 2017-07-14 | 2017-07-14 | Dust catcher and its motor mould group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109247865A true CN109247865A (en) | 2019-01-22 |
Family
ID=65001035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710576750.7A Pending CN109247865A (en) | 2017-07-14 | 2017-07-14 | Dust catcher and its motor mould group |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109247865A (en) |
| WO (1) | WO2019011314A1 (en) |
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| CN101084819B (en) * | 2006-06-08 | 2010-12-22 | 乐金电子(天津)电器有限公司 | Vacuum cleaner |
| CN103381080A (en) * | 2012-05-02 | 2013-11-06 | 乐金电子(天津)电器有限公司 | Low-noise motor box of dust collector |
| CN103385676A (en) * | 2012-05-10 | 2013-11-13 | Lg电子株式会社 | Appliance with noise reduction device |
| CN104712472A (en) * | 2013-12-17 | 2015-06-17 | 曼胡默尔滤清器（上海）有限公司 | Noise elimination device integrated on outer surface of air filter shell |
| CN204192515U (en) * | 2014-10-10 | 2015-03-11 | 江苏美的春花电器股份有限公司 | The dirt cup assembly of dust catcher and there is its dust catcher |
| CN205306900U (en) * | 2016-01-15 | 2016-06-15 | 江西怡杉环保股份有限公司 | Silencer for dust collector |
| CN205893747U (en) * | 2016-06-30 | 2017-01-18 | 无锡小天鹅股份有限公司 | Direct vent dryer |
| CN206285057U (en) * | 2016-08-31 | 2017-06-30 | 江苏美的清洁电器股份有限公司 | Motor cover for dust catcher, the motor with it and dust catcher |
| CN106593961A (en) * | 2017-01-03 | 2017-04-26 | 奥克斯空调股份有限公司 | Silencer and air conditioner with same |
| CN106901656A (en) * | 2017-04-24 | 2017-06-30 | 江苏美的清洁电器股份有限公司 | The motor cover body and dust catcher of dust catcher |
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| Publication number | Publication date |
|---|---|
| WO2019011314A1 (en) | 2019-01-17 |
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