CN108223407A - Air blower - Google Patents
Air blower Download PDFInfo
- Publication number
- CN108223407A CN108223407A CN201711485576.1A CN201711485576A CN108223407A CN 108223407 A CN108223407 A CN 108223407A CN 201711485576 A CN201711485576 A CN 201711485576A CN 108223407 A CN108223407 A CN 108223407A
- Authority
- CN
- China
- Prior art keywords
- wind wheel
- motor body
- motor
- ring flange
- spiral case
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of air blowers, it includes spiral case, wind wheel and vibration reduction electric machine, the accommodating cavity for accommodating wind wheel is provided in spiral case, the side of spiral case is provided with the air inlet and air outlet that are connected respectively with accommodating cavity；Wind wheel is mounted in accommodating cavity, and anti-reflux mechanism is provided between spiral case and wind wheel；Shock-absorbing motor includes motor body, is sleeved on the ring flange of motor body lower end and is sleeved on motor body upper end and for motor body to be pressed on to the motor fixing sleeve in ring flange, the first Rubber shock-absorbing pad is connected between motor body and motor fixing sleeve, the second Rubber shock-absorbing pad is connected between motor body and ring flange, ring flange and motor fixing sleeve are snapped together by clip connection device.The vibration reduction electric machine of the present invention can be to the vibration of motor body into row buffering, and so as to achieve the purpose that reduce abnormal sound, mitigate resonance, spiral case wind wheel system of the invention prevents airflow reflux, and then increase air quantity by anti-return measure.
Description
Technical field
The present invention relates to a kind of air blowers.
Background technology
Existing air blower in the prevalence of air quantity is small, high energy consumption, noise is big, efficiency is low the problem of, it is impossible to meet country
Requirement to automobile industry (NVH) energy-saving and emission-reduction, and influence to drive the comfort for making personnel.
Invention content
The technical problems to be solved by the invention are the defects of overcoming the prior art, provide a kind of air blower, its vibration damping
Motor, so as to mitigate influence of the motor oscillating to cooling system, can subtract to the vibration of motor body into row buffering so as to reach
Small abnormal sound, the purpose for mitigating resonance, its spiral case wind wheel matched design anti-return measure prevent wind energy to be lost, and then increase wind
Amount.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of air blower, it includes：
Spiral case, is provided with the accommodating cavity for accommodating wind wheel in the spiral case, the side of the spiral case be provided with respectively with
The air inlet and air outlet that accommodating cavity is connected；
Wind wheel, the wind wheel are mounted in accommodating cavity, are provided with to prevent gas backstreaming between the spiral case and wind wheel
Anti-reflux mechanism；
Vibration reduction electric machine, the shock-absorbing motor include motor body, are sleeved on the ring flange of motor body lower end and are sleeved on
Motor body upper end and for motor body to be pressed on to motor fixing sleeve in ring flange, the motor body and motor are fixed
The first Rubber shock-absorbing pad is connected between set, one end of first Rubber shock-absorbing pad and motor body abut, first rubber
The other end and motor fixing sleeve of glue beam abut, and the second rubber shock-absorbing is connected between the motor body and ring flange
Pad, one end of second Rubber shock-absorbing pad and motor body abut, the other end and ring flange of second Rubber shock-absorbing pad
It abuts, the ring flange and the motor fixing sleeve are snapped together by clip connection device, and the wind wheel is mounted on shock-absorbing motor
Rotation axis on, be connected with nylon spacer between the wind wheel and the rotation axis of vibration reduction electric machine.
A kind of concrete structure of anti-reflux mechanism is further provided, the anti-reflux mechanism includes being arranged on wind wheel
Wind wheel anti-return boss and the spiral case anti-return groove for being arranged on accommodating cavity bottom, the wind wheel anti-return boss insertion spiral case are prevented
It flows back in groove.
Further for airflow reflux is better protected from, anti-return gear eaves is additionally provided on the inside of the spiral case, it is described to prevent back
Stream gear eaves is in the top of accommodating cavity.
Further for air quantity is increased to a greater extent, the wind wheel includes multiple blades, and the blade is not uniform thickness knot
Structure, the blade are spliced successively by the cambered surface that multiple radiuses do not wait.
A kind of concrete structure of clip connection device is further provided, the clip connection device includes being arranged on motor fixing sleeve
Convex block and the recess portion that is arranged on ring flange, the motor fixing sleeve interlocked by the fastening and ring flange of convex block and recess portion
It connects.
Further for damping is preferably carried out to motor, the motor body includes flexible connecting member, the motor sheet
Body lower end is provided with bottom end cover, and brush assembly of electric is provided in the motor body, and the brush assembly of electric is connected by flexible connecting member
It is connected on bottom end cover, the ring flange is sleeved on the outside of bottom end cover.
A kind of concrete structure of brush assembly of electric is further provided, the brush assembly of electric includes brush, brush box and brush holder, institute
Brushgear is stated in brush box, the brush box is assemblied on brush holder, and the brush holder is connected to by flexible connecting member on bottom end cover.
A kind of concrete structure of flexible connecting member is further provided, the flexible connecting member is dowel, described
Brush holder is connected to by dowel support arm on dowel, and connecting hole is provided on the brush holder, and the dowel support arm, which passes through, to be connected
It connects and is connected to the dowel on dowel behind hole and is connected with bottom end cover.
Further, the dowel and dowel support arm are synthesized by nylon PA66 and glass fibre GF30.
Further for brush holder is caused more firmly to be connected on bottom end cover also for preferably damping, each brush holder passes through
Two flexible connecting members are connected on bottom end cover.
After employing above-mentioned technical proposal, the present invention gives motor sheet by the first rubber damper and the second Rubber shock-absorbing pad
Body provides soft support, and then influence of the vibration of buffer motor ontology to ring flange, this Vibration Absorption Designing is in longitudinal direction and horizontal direction
Vibration damping protection all has been carried out to vibration reduction electric machine, motor body longitudinal direction and lateral impact can be reduced to the greatest extent, reduced
The motor body transmission to the vibration of ring flange at work, so as to reduce the generation of abnormal sound, vibration；Motor body is working
When, the brush in brush assembly of electric carries out face with the commutator face of rotation always and contacts, and shake can be generated due to constantly rubbing,
The bottom end cover of the present invention is connect with brush assembly of electric by flexible connecting member, and then slackens the shake generated when brush works with commutator
It is dynamic, the vibration of vibration reduction electric machine is further alleviated, influence of the vibration reduction electric machine vibration to spiral case wind wheel system is also mitigated, subtracts
Small work noise；The present invention prevents airflow reflux by anti-reflux mechanism, and increases anti-return gear in the accommodating cavity of spiral case
Eaves effectively prevents airflow reflux, and the blade of wind wheel is changed to not uniform thickness structure, and the shape of blade is changed to by multiple half
The cambered surface that diameter does not wait is spliced, so that air quantity increases by more than 10, reduces energy consumption, improves the utilization of resources
Rate, the rotating speed of wind wheel also reduced, and further reduce work noise.
Description of the drawings
Fig. 1 is the structure diagram of the air blower of the present invention；
Fig. 2 is the structure diagram of the spiral case of the present invention, wind wheel；
Fig. 3 is the front view of Fig. 2；
Fig. 4 is the vertical view of Fig. 2；
Fig. 5 is A-A sectional views of Fig. 3；
Fig. 6 is B-B sectional views of Fig. 4；
Fig. 7 is the C portions enlarged drawing of Fig. 5；
Fig. 8 is the bottom end cover of the present invention and the structure diagram of brush assembly of electric.
Specific embodiment
In order that the present invention can be more clearly and readily understood, it is right below according to specific embodiment and with reference to attached drawing
The present invention is described in further detail.
As shown in Fig. 1~8, a kind of air blower, it includes：
The accommodating cavity for accommodating wind wheel 2a, the side setting of the spiral case 1a are provided in spiral case 1a, the spiral case 1a
There is the air inlet 7a being connected respectively with accommodating cavity and air outlet 8a；
Wind wheel 2a, the wind wheel 2a are provided with to prevent gas between the spiral case 1a and wind wheel 2a in accommodating cavity
The anti-reflux mechanism of body reflux；
Vibration reduction electric machine, the shock-absorbing motor include motor body 1b, be sleeved on motor body 1b lower ends ring flange 2b and
It is sleeved on motor body 1b upper ends and for motor body 1b to be pressed on to the motor fixing sleeve 3b in ring flange 2b, the motor
The first Rubber shock-absorbing pad 4b, one end of the first Rubber shock-absorbing pad 4b and electricity are connected between ontology 1b and motor fixing sleeve 3b
Machine ontology 1b is abutted, and the other end and motor fixing sleeve 3b of the first Rubber shock-absorbing pad 4b abut, the motor body 1b and
The second Rubber shock-absorbing pad 5b is connected between ring flange 2b, one end of the second Rubber shock-absorbing pad 5b and motor body 1b are supported
It connects, the other end and ring flange 2b of the second Rubber shock-absorbing pad 5b abut, the ring flange 2b and the motor fixing sleeve 3b
It is snapped together by clip connection device, the wind wheel 2b is mounted in the rotation axis of shock-absorbing motor, the wind wheel 10b and vibration damping electricity
Nylon spacer 7b is connected between the rotation axis of machine.Specifically, there is gas after being connect with other devices in air outlet 8a in order to prevent
Excessive situation is flowed, the air outlet 8a is provided with air outlet sealing strip；In order to be filtered to entering the air in spiral case 1a,
The air inlet 7a is provided with sponge.
As a shown in Figure 6, the anti-reflux mechanism includes the wind wheel anti-return boss 3a and the setting that are arranged on wind wheel 2a
In spiral case anti-return the groove 4a, the wind wheel anti-return boss 3a insertion spiral case anti-return grooves 4a of accommodating cavity bottom.
As a shown in Figure 6, in order to be better protected from airflow reflux, anti-return gear eaves is additionally provided on the inside of the spiral case 1a
5a, the anti-return gear eaves 5a are in the top of accommodating cavity.
As shown in Fig. 5,7, in order to increase air quantity to a greater extent, the wind wheel 2a includes multiple blade 6a, the blade
6a is not uniform thickness structure, and the blade 6a is spliced successively by the cambered surface that multiple radiuses do not wait.
As shown in Figure 1, the clip connection device includes the convex block 31b being arranged on motor fixing sleeve 3b and is arranged on ring flange
Recess portion on 2b, the motor fixing sleeve 3b are interlockingly connected by the fastening and ring flange 2b of convex block 31b and recess portion.
As shown in figure 8, in order to preferably carry out damping to motor, the motor body 1b includes flexible connecting member, described
Motor body 1b lower ends are provided in bottom end cover 11b, the motor body 1b and are provided with brush assembly of electric, and the brush assembly of electric passes through
Flexible connecting member is connected on bottom end cover 11b, and the ring flange 2b is sleeved on the outside of bottom end cover 11b.
As shown in figure 8, the brush assembly of electric includes brush 61b, brush box 62b and brush holder 63b, the brush 61b devices exist
In brush box 62b, the brush box 62b is assemblied on brush holder 63b, and the brush holder 63b is connected to bottom end cover 11b by flexible connecting member
On.
As shown in figure 8, the flexible connecting member is dowel 8b, the brush holder 63b is connected by dowel support arm 9b
It is connected on dowel 8b, 63b is provided with connecting hole 631b on the brush holder, after the dowel support arm 9b passes through connecting hole 631b
The dowel 8b on dowel 8b is connected to bottom end cover 11b to be connected.
The dowel 8b and dowel support arm 9b are synthesized by nylon PA66 and glass fibre GF30.
As shown in figure 8, in order to enable brush holder 63b is more firmly connected on bottom end cover 11b also for preferably damping, often
A brush holder 63b is connected to by two flexible connecting members on bottom end cover 11b.
Table 1, the air quantity statistical form of existing air blower
Table 1
Table 2, the air quantity statistical form of air blower of the invention
Table 2
It can be obtained from the comparison of Tables 1 and 2, same to voltage, under hydrostatic pressure condition, the actual air volume of air blower of the invention is bright
Aobvious increase, for the present invention when static pressure is 350Pa, blower air quantity increases by 13.36%, and electric current increase 10.7% meets operating point
Electric current is less than the requirement of 10A, and wind wheel 2a rotating speeds decline 223rpm, work noise is also reduced while air quantity is increased.
The operation principle of the present invention is as follows：
The present invention provides soft support by the first rubber damper 4b and the second Rubber shock-absorbing pad 5b to motor body 1b, into
And influence of the vibration of buffer motor ontology 1b to ring flange 2b, this Vibration Absorption Designing is in longitudinal direction and horizontal direction all to vibration reduction electric machine
Vibration damping protection has been carried out, motor body 1b longitudinal directions and lateral impact can be reduced to the greatest extent, reduce motor body 1b
At work to the transmission of the vibration of ring flange 2b, so as to reduce the generation of abnormal sound, vibration；Motor body 1b is at work, electric
Brush 61b in brush assemblies carries out face with the commutator face of rotation always and contacts, and shake can be generated due to constantly rubbing, this
The bottom end cover 11b of invention is connect with brush assembly of electric by flexible connecting member, and then is slackened when brush 61b works with commutator and generated
Vibrations, further alleviate the vibration of vibration reduction electric machine, also mitigate vibration reduction electric machine vibration to the shadow of spiral case wind wheel system
It rings, reduces work noise；The present invention prevents airflow reflux by anti-reflux mechanism, and increases in the accommodating cavity of spiral case 1a and prevent
Reflux gear eaves 5a, effectively prevents airflow reflux, and the blade 6a of wind wheel 2a is changed to not uniform thickness structure, and will be outside blade 6a
Shape is changed to be spliced by the cambered surface that multiple radiuses do not wait, so that air quantity increases by more than 10, reduces energy consumption, carries
High resource utilization, the rotating speed of wind wheel 2a also reduced, and further reduce work noise.
Particular embodiments described above, pair present invention solves the technical problem that, technical solution and advantageous effect carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this
Invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair
Within bright protection domain.
Claims (10)
1. a kind of air blower, which is characterized in that it includes：
Spiral case (1a), the interior accommodating cavity being provided with for accommodating wind wheel (2a) of the spiral case (1a), the side of the spiral case (1a)
It is provided with the air inlet (7a) being connected respectively with accommodating cavity and air outlet (8a)；
Wind wheel (2a), the wind wheel (2a) in accommodating cavity, be provided between the spiral case (1a) and wind wheel (2a) to prevent
The only anti-reflux mechanism of gas backstreaming；
Vibration reduction electric machine, the shock-absorbing motor include motor body (1b), the ring flange (2b) for being sleeved on motor body (1b) lower end
Be sleeved on motor body (1b) upper end and for motor body (1b) to be pressed on to the motor fixing sleeve in ring flange (2b)
(3b) is connected with the first Rubber shock-absorbing pad (4b), first rubber between the motor body (1b) and motor fixing sleeve (3b)
One end of glue beam (4b) and motor body (1b) abut, and the other end and motor of first Rubber shock-absorbing pad (4b) are fixed
It covers (3b) to abut, is connected with the second Rubber shock-absorbing pad (5b) between the motor body (1b) and ring flange (2b), described second
One end of Rubber shock-absorbing pad (5b) and motor body (1b) abut, the other end and ring flange of second Rubber shock-absorbing pad (5b)
(2b) is abutted, and the ring flange (2b) and the motor fixing sleeve (3b) are snapped together by clip connection device, the wind wheel
(2b) in the rotation axis of shock-absorbing motor, the wind wheel (10b) is connected with nylon cushion between the rotation axis of vibration reduction electric machine
Piece (7b).
2. air blower according to claim 1, it is characterised in that：The anti-reflux mechanism includes being arranged on wind wheel (2a)
Wind wheel anti-return boss (3a) and be arranged on the spiral case anti-return groove (4a) of accommodating cavity bottom, the wind wheel anti-return boss
In (3a) embedded spiral case anti-return groove (4a).
3. air blower according to claim 1, it is characterised in that：Anti-return gear eaves is additionally provided on the inside of the spiral case (1a)
(5a), the anti-return gear eaves (5a) are in the top of accommodating cavity.
4. air blower according to claim 1, it is characterised in that：The wind wheel (2a) includes multiple blades (6a), described
Blade (6a) is not uniform thickness structure, and the blade (6a) is spliced successively by the cambered surface that multiple radiuses do not wait.
5. air blower according to claim 1, it is characterised in that：The clip connection device includes being arranged on motor fixing sleeve
Convex block (31b) on (3b) and the recess portion being arranged on ring flange (2b), the motor fixing sleeve (3b) by convex block (31b) and
The fastening and ring flange (2b) of recess portion are interlockingly connected.
6. air blower according to claim 1, it is characterised in that：The motor body (1b) includes flexible connecting member, institute
It states motor body (1b) lower end and is provided with bottom end cover (11b), brush assembly of electric, the brush are provided in the motor body (1b)
Component is connected to by flexible connecting member on bottom end cover (11b), and the ring flange (2b) is sleeved on the outside of bottom end cover (11b).
7. air blower according to claim 6, it is characterised in that：The brush assembly of electric includes brush (61b), brush box
(62b) and brush holder (63b), for brush (61b) device in brush box (62b), the brush box (62b) is assemblied in brush holder (63b)
On, the brush holder (63b) is connected to by flexible connecting member on bottom end cover (11b).
8. air blower according to claim 7, it is characterised in that：The flexible connecting member be dowel (8b), the institute
It states brush holder (63b) to be connected on dowel (8b) by dowel support arm (9b), (63b) is provided with connecting hole on the brush holder
(631b), the dowel support arm (9b) across be connected to after connecting hole (631b) on dowel (8b) dowel (8b) and
Bottom end cover (11b) is connected.
9. air blower according to claim 8, it is characterised in that：The dowel (8b) and dowel support arm (9b) by
Nylon PA66 and glass fibre GF30 synthesis.
10. air blower according to claim 7, it is characterised in that：Each brush holder (63b) is connected by two flexible connecting members
It is connected on bottom end cover (11b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711485576.1A CN108223407A (en) | 2017-12-29 | 2017-12-29 | Air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711485576.1A CN108223407A (en) | 2017-12-29 | 2017-12-29 | Air blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223407A true CN108223407A (en) | 2018-06-29 |
Family
ID=62647397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711485576.1A Pending CN108223407A (en) | 2017-12-29 | 2017-12-29 | Air blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223407A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2331907A1 (en) * | 2000-08-22 | 2002-02-22 | Wayne H. Murray | Self-regulating, axle-mounted electrical generation device |
| CN202178646U (en) * | 2011-08-25 | 2012-03-28 | 重庆华宇实业有限责任公司 | Blower brush holder connection structure |
| CN202612135U (en) * | 2012-04-24 | 2012-12-19 | 上海酷风汽车部件有限公司 | Evaporator fan for automobile air conditioner |
| CN103291661A (en) * | 2013-06-17 | 2013-09-11 | 上海贝洱热系统有限公司 | Noise-reducing blower inlet windproof ring device of vehicle air conditioner |
| CN204943688U (en) * | 2015-09-23 | 2016-01-06 | 广东美的制冷设备有限公司 | Indoor apparatus of air conditioner and air-conditioner |
| CN106877550A (en) * | 2017-03-31 | 2017-06-20 | 苏州金莱克汽车电机有限公司 | A kind of motor brush rocker and the motor using the brush holder |
| CN206723092U (en) * | 2017-04-28 | 2017-12-08 | 美的集团股份有限公司 | Blower fan and there is its dust catcher |
-
2017
- 2017-12-29 CN CN201711485576.1A patent/CN108223407A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2331907A1 (en) * | 2000-08-22 | 2002-02-22 | Wayne H. Murray | Self-regulating, axle-mounted electrical generation device |
| CN202178646U (en) * | 2011-08-25 | 2012-03-28 | 重庆华宇实业有限责任公司 | Blower brush holder connection structure |
| CN202612135U (en) * | 2012-04-24 | 2012-12-19 | 上海酷风汽车部件有限公司 | Evaporator fan for automobile air conditioner |
| CN103291661A (en) * | 2013-06-17 | 2013-09-11 | 上海贝洱热系统有限公司 | Noise-reducing blower inlet windproof ring device of vehicle air conditioner |
| CN204943688U (en) * | 2015-09-23 | 2016-01-06 | 广东美的制冷设备有限公司 | Indoor apparatus of air conditioner and air-conditioner |
| CN106877550A (en) * | 2017-03-31 | 2017-06-20 | 苏州金莱克汽车电机有限公司 | A kind of motor brush rocker and the motor using the brush holder |
| CN206723092U (en) * | 2017-04-28 | 2017-12-08 | 美的集团股份有限公司 | Blower fan and there is its dust catcher |
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