CN108843592A - A kind of blower - Google Patents
A kind of blower Download PDFInfo
- Publication number
- CN108843592A CN108843592A CN201810640133.3A CN201810640133A CN108843592A CN 108843592 A CN108843592 A CN 108843592A CN 201810640133 A CN201810640133 A CN 201810640133A CN 108843592 A CN108843592 A CN 108843592A
- Authority
- CN
- China
- Prior art keywords
- blower
- volute
- fixed
- motor
- shock
- 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
- 238000009434 installation Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of blowers, including volute of blower, wind wheel is set in volute of blower, the motor for driving wind wheel to rotate is provided with outside volute of blower, it passes through volute of blower in the conveying axis of motor to be connected with wind wheel, the radiator fan for being provided with the fixed plate for fixing motor between volute of blower and motor and being fixed on motor conveying axis；Wherein motor is fixed on fixed plate by the second fixed part, when fixed screw, which passes through the second shock-absorbing sleeve, to be connected with volute of blower, tighten fixed screw will drive the second support portion press the second shock-absorbing sleeve and volute of blower it is inconsistent, realize that fixed plate is connected by the second support portion with volute of blower, the support plate is fixed on spiral case by the first fixed part simultaneously, first shock-absorbing sleeve made of the first support portion setting rubber, first shock-absorbing sleeve and motor are inconsistent, so that motor stabilizing is reliably fixed in spiral case, its service life is improved.
Description
Technical field
The present invention relates to blower fields.
Background technique
Blower generally comprise motor, impeller, spiral case and between connection accessory.The motor modes of emplacement of blower has external
Formula and two kinds built-in.Built-in motor formula, that is, motor is placed within volute of blower, and external motor type, that is, motor is placed in volute of blower
Except.In external motor, impeller is coupled by axis and motor, and the fixation between motor and volute of blower is simply by motor
Installation plectane and the volute of blower of front end are connected and fixed, but this fixed structure and insecure, and motor is easy in use
It shakes, so that shaking in motor operation course, generates noise, while also reducing the service life.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of blower, it can be fixedly secured motor, kept away
Exempt to shake in motor operation course, generates noise.
To achieve the above object, the present invention provides following technical solutions：
A kind of blower, including volute of blower, are arranged wind wheel in volute of blower, are provided with outside volute of blower and drive wind wheel
The motor of rotation passes through volute of blower in the conveying axis of motor and is connected with wind wheel, is provided between volute of blower and motor
Radiator fan for fixing the fixed plate of motor and being fixed on motor conveying axis, the radiator fan are placed in fixed plate
Lower section；
The support plate for being used to support motor is provided in the side of fixed plate, the support plate includes first that bending is formed
Fixed part and the first support portion are fixed by screws on spiral case in the first fixed part, and rubber is used in the first support portion setting
The one end of manufactured first shock-absorbing sleeve, first shock-absorbing sleeve is fixed on the first support portion, several are arranged in the other end
Conflict block, the conflict block are distributed around the axis uniform circular of the first shock-absorbing sleeve；
The end face of the fixed plate towards motor is provided with the second fixed part for fixing motor；Outside the fixed plate
Side wall is additionally provided with several the second outwardly protruding support portions, and second support portion offers the second mounting hole, and
The second shock-absorbing sleeve is provided on second mounting hole；When fixed screw, which passes through the second shock-absorbing sleeve, to be connected with volute of blower, tighten
Fixed screw will drive the second support portion the second shock-absorbing sleeve of pressing and volute of blower is inconsistent.
The present invention is further arranged：First fixed part offers the first fixation hole and first positioning hole, the blower
The positioning convex point matched with first positioning hole is arranged in spiral case, when the first fixed part is placed in by first positioning hole and positioning convex point
On volute of blower, screw passes through the first fixation hole and is fixedly connected on volute of blower.
The present invention is further arranged：First support portion is provided with the first mounting hole, first shock-absorbing sleeve be equipped with
Inwardly protruded annular flange is arranged in the inner sidewall of the first annular groove of first mounting hole adaptation, first mounting hole, when
The one end of first shock-absorbing sleeve passes through the first mounting hole and motor is inconsistent, and the other end passes through annular groove and annular flange phase
Cooperation is fixed in the first mounting hole.
The present invention is further arranged：The two sides of the support plate are equipped with reinforcement convex ribs, and the reinforcement convex ribs are towards support
The direction protrusion of plate.
The present invention is further arranged：Two symmetrically arranged branch are arranged towards the end face of volute of blower in second support portion
Support foot, second yielding rubber are placed between two support legs.
The present invention is further arranged：Spiral case installation is inlaid at volute of blower position corresponding with the second support portion
Foot, the fixed screw pass through the second shock-absorbing sleeve and are threadedly coupled with spiral case installation foot.
The present invention is further arranged：The both ends of the surface of the fixed plate are respectively provided with reinforcing rib.
Beneficial effect of the present invention：Wherein motor is fixed on fixed plate by the second fixed part, when fixed screw passes through second
When shock-absorbing sleeve is connected with volute of blower, tightening fixed screw will drive the second support portion the second shock-absorbing sleeve of pressing and volute of blower
It is inconsistent, it realizes that fixed plate is connected by the second support portion with volute of blower, is cooperated by fixed screw and the second shock-absorbing sleeve
It uses, not only fixed plate is fixedly secured on volute of blower, to be fixedly secured motor, while being played cushioning effect, is effectively kept away
Exempt to generate noise, while the support plate is fixed on spiral case by the first fixed part, rubber is used in the first support portion setting
Manufactured first shock-absorbing sleeve, the first shock-absorbing sleeve and motor are inconsistent, and in use process, the first shock-absorbing sleeve plays support to motor and makees
With, while shock-absorbing sleeve is made of rubber and also plays cushioning effect to motor, so that motor stabilizing is reliably fixed in spiral case, is improved
Its service life.
Detailed description of the invention
Fig. 1 is a kind of top view of blower of the present invention；
Fig. 2 is a kind of cross-sectional view of blower of the present invention；
Fig. 3 is the top view of volute of blower；
Fig. 4 is the main view of support plate；
Fig. 5 is the top view of support plate；
Fig. 6 is the cross-sectional view of the first shock-absorbing sleeve；
Fig. 7 is the top view of the first shock-absorbing sleeve；
Fig. 8 is the top view of fixed plate；
Fig. 9 is the bottom view of fixed plate.
Description of symbols：1, volute of blower；11, positioning convex point；2, wind wheel；3, motor；4, fixed plate；41, second is solid
Determine portion；42, the second support portion；421, the second mounting hole；43, support leg；5, radiator fan；6, support plate；61, first is fixed
Portion；611, the first fixation hole；612, first positioning hole；62, the first support portion；621, the first mounting hole；7, the first shock-absorbing sleeve；
71, conflict block；72, first annular groove；8, the second shock-absorbing sleeve；9, spiral case installation foot.
Specific embodiment
A kind of blower embodiment of the present invention is described in further details referring to attached drawing 1 to Fig. 9.
Wind wheel 2 is arranged in volute of blower 1, is provided with and drives outside volute of blower 1 for a kind of blower, including volute of blower 1
The motor 3 that wind wheel 2 rotates passes through volute of blower 1 in the conveying axis of motor 3 and is connected with wind wheel 2, in volute of blower 1 and motor 3
Between the radiator fan 5 that is provided with the fixed plate 4 for fixing motor 3 and is fixed on 3 conveying axis of motor, the radiation air
Fan 5 is placed in the lower section of fixed plate 4, when motor 3 drives wind wheel 2 to rotate, the rotation of radiator fan 5 can be driven to play heat dissipation simultaneously and made
With.
The support plate 6 for being used to support motor 3 is provided in the side of fixed plate 4, the two sides of the support plate 6 are equipped with
Reinforce convex ribs, the convex ribs of reinforcing improve the use intensity of support plate 6 towards the direction of support plate 6 protrusion.
The support plate 6 includes the first fixed part 61 and the first support portion 62 that bending is formed, logical in the first fixed part 61
It crosses screw to be fixed on spiral case, the first shock-absorbing sleeve 7 made of the setting of the first support portion 62 rubber, first shock-absorbing sleeve
7 one end is fixed on the first support portion 62, several conflict blocks 71 are arranged in the other end, and the conflict block 71 subtracts around first
The axis uniform circular distribution of shake set 7；The fixed plate 4 is fixed on spiral case by the first fixed part 61, first support
First shock-absorbing sleeve 7 made of the setting of portion 62 rubber, the first shock-absorbing sleeve 7 and motor 3 are inconsistent, in use process, the first damping
It covers 7 pairs of motors 3 to play a supporting role, while the first shock-absorbing sleeve 7 is made of rubber and also plays cushioning effect to motor 3, so that
Motor 3 is reliable and stable to be fixed on spiral case, improves its service life.
Wherein first fixed part 61 offers the first fixation hole 611 and first positioning hole 612, the volute of blower 1
The positioning convex point 11 matched with first positioning hole 612 is set, when the first fixed part 61 passes through first positioning hole 612 and convex
On position needed for point 11 is accurately placed in volute of blower 1, screw passes through the first fixation hole 611 and is fixedly connected on volute of blower 1, mentions
The convenience of height assembly.
The first mounting hole 621 is arranged in first support portion 62, and first shock-absorbing sleeve 7 is equipped with and the first mounting hole 621
The first annular groove 72 of adaptation, when the first shock-absorbing sleeve 7 one end pass through the first mounting hole 621 and motor 3 it is inconsistent, it is another
End is fixed in the first mounting hole 621 by first annular groove 72, is easily installed shock-absorbing sleeve.
The both ends of the surface of the fixed plate 4 are respectively provided with reinforcing rib, and the use intensity of fixed plate 4, the fixed plate 4 can be improved
The end face of motor 3 is provided with the second fixed part 41 for fixing motor 3, wherein the second fixed part 41 can pass through screw
It is fixedly connected with motor 3；The lateral wall of the fixed plate 4 is additionally provided with several the second outwardly protruding support portions 42,
Second support portion 42 offers the second mounting hole 421, and the second shock-absorbing sleeve 8 is provided on the second mounting hole 421；When
When fixed screw is connected across the second shock-absorbing sleeve 8 with volute of blower 1, tightening fixed screw will drive the pressing of the second support portion 42
Second shock-absorbing sleeve 8 and volute of blower 1 are inconsistent.
When fixed screw, which passes through the second shock-absorbing sleeve 8, to be connected with volute of blower 1, tightening fixed screw will drive second
Support part 42 presses the second shock-absorbing sleeve 8 and volute of blower 1 is inconsistent, realizes that fixed plate 4 passes through the second support portion 42 and volute of blower 1
It is connected, is used cooperatively by fixed screw and the second shock-absorbing sleeve 8, is fixedly secured fixed plate 4 in volute of blower 1
On, to be fixedly secured motor 3, while cushioning effect is played, effectively avoids generating noise.
Wherein two symmetrically arranged support legs 43, institute is arranged towards the end face of volute of blower 1 in second support portion 42
It states the second shock-absorbing sleeve 8 to be placed between two support legs 43, effectively support portion is avoided to shake, improve the steady of the installation of fixed plate 4
It is qualitative.
It wherein is inlaid with spiral case installation foot 9 at the volute of blower 1 position corresponding with the second support portion 42, it is described solid
Determine screw and be threadedly coupled with spiral case installation foot 9 across the second shock-absorbing sleeve 8 so that fixed screw is stronger and volute of blower 1 on.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of blower, including volute of blower, are arranged wind wheel in volute of blower, it is provided with outside volute of blower and wind wheel is driven to turn
Dynamic motor passes through volute of blower in the conveying axis of motor and is connected with wind wheel, it is characterized in that：Between volute of blower and motor
The radiator fan for being provided with the fixed plate for fixing motor and being fixed on motor conveying axis, the radiator fan are placed in solid
The lower section of fixed board；
The support plate for being used to support motor is provided in the side of fixed plate, the support plate includes the first fixation that bending is formed
Portion and the first support portion are fixed by screws on spiral case in the first fixed part, and the first support portion setting is made of rubber
The first shock-absorbing sleeve, the one end of first shock-absorbing sleeve is fixed on the first support portion, several conflicts are arranged in the other end
Block, the conflict block are distributed around the axis uniform circular of the first shock-absorbing sleeve；
The end face of the fixed plate towards motor is provided with the second fixed part for fixing motor；The lateral wall of the fixed plate
Several the second outwardly protruding support portions are additionally provided with, second support portion offers the second mounting hole, and second
The second shock-absorbing sleeve is provided on mounting hole；When fixed screw, which passes through the second shock-absorbing sleeve, to be connected with volute of blower, fixation is tightened
Screw will drive the second support portion the second shock-absorbing sleeve of pressing and volute of blower is inconsistent.
2. a kind of blower according to claim 1, it is characterized in that：First fixed part offers the first fixation hole and
The positioning convex point matched with first positioning hole is arranged in a positioning hole, the volute of blower, when the first fixed part is fixed by first
Position hole and positioning convex point are placed on volute of blower, and screw passes through the first fixation hole and is fixedly connected on volute of blower.
3. a kind of blower according to claim 2, it is characterized in that：First support portion is provided with the first mounting hole, institute
It states the first shock-absorbing sleeve and is equipped with the first annular groove being adapted to the first mounting hole, the inner sidewall setting of first mounting hole is inside
The annular flange of protrusion, when the one end of the first shock-absorbing sleeve passes through, the first mounting hole is inconsistent with motor, and the other end passes through ring
Connected in star is matched with annular flange to be fixed in the first mounting hole.
4. a kind of blower according to claim 3, it is characterized in that：The two sides of the support plate are equipped with reinforcement convex ribs,
The convex ribs of reinforcing are towards the direction of support plate protrusion.
5. a kind of blower according to claim 1, it is characterized in that：The end face of second support portion towards the volute of blower is set
Two symmetrically arranged support legs are set, second yielding rubber is placed between two support legs.
6. a kind of blower according to claim 5, it is characterized in that：Volute of blower position corresponding with the second support portion
The place of setting is inlaid with spiral case installation foot, and the fixed screw passes through the second shock-absorbing sleeve and is threadedly coupled with spiral case installation foot.
7. a kind of blower according to claim 6, it is characterized in that：The both ends of the surface of the fixed plate are respectively provided with reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640133.3A CN108843592A (en) | 2018-06-20 | 2018-06-20 | A kind of blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640133.3A CN108843592A (en) | 2018-06-20 | 2018-06-20 | A kind of blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108843592A true CN108843592A (en) | 2018-11-20 |
Family
ID=64203056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640133.3A Pending CN108843592A (en) | 2018-06-20 | 2018-06-20 | A kind of blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108843592A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404339A (en) * | 2018-12-18 | 2019-03-01 | 南京磁谷科技有限公司 | A kind of spiral case component for the straight drive centrifugal fan of high speed electricity |
| CN113374706A (en) * | 2021-06-22 | 2021-09-10 | 铁善奎 | Multistage centrifugal blower |
| CN114076107A (en) * | 2020-08-18 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Fan assembly and range hood |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH248935A (en) * | 1945-08-23 | 1947-05-31 | Ditting Adolf | Electric motor mounted on an oscillating axis to absorb noise and vibrations. |
| FR2461836A1 (en) * | 1979-07-20 | 1981-02-06 | Aero Plast | Centrifugal ventilator with two-part volute - comprising dished half receiving turbine and cover plate supporting turbine and drive motor |
| CN1341939A (en) * | 2000-08-11 | 2002-03-27 | Lg电子株式会社 | Anti-viberating device for disk drive |
| CN1382097A (en) * | 2000-05-26 | 2002-11-27 | 三菱电机株式会社 | Elevator device |
| CN201439762U (en) * | 2009-07-21 | 2010-04-21 | 中山大洋电机股份有限公司 | a blower |
| CN201705729U (en) * | 2009-12-25 | 2011-01-12 | 中山大洋电机股份有限公司 | A blower structure |
| CN204099245U (en) * | 2014-09-03 | 2015-01-14 | 中山大洋电机制造有限公司 | A kind of blower |
| CN205001225U (en) * | 2015-07-31 | 2016-01-27 | 中山大洋电机股份有限公司 | a fan |
| CN205401188U (en) * | 2016-03-11 | 2016-07-27 | 广州市鑫风风机有限公司 | Vertical fan with motor supporting frame and heat abstractor |
| CN208348121U (en) * | 2018-06-20 | 2019-01-08 | 温州市爱光机电设备有限公司 | A kind of blower |
-
2018
- 2018-06-20 CN CN201810640133.3A patent/CN108843592A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH248935A (en) * | 1945-08-23 | 1947-05-31 | Ditting Adolf | Electric motor mounted on an oscillating axis to absorb noise and vibrations. |
| FR2461836A1 (en) * | 1979-07-20 | 1981-02-06 | Aero Plast | Centrifugal ventilator with two-part volute - comprising dished half receiving turbine and cover plate supporting turbine and drive motor |
| CN1382097A (en) * | 2000-05-26 | 2002-11-27 | 三菱电机株式会社 | Elevator device |
| CN1341939A (en) * | 2000-08-11 | 2002-03-27 | Lg电子株式会社 | Anti-viberating device for disk drive |
| CN201439762U (en) * | 2009-07-21 | 2010-04-21 | 中山大洋电机股份有限公司 | a blower |
| CN201705729U (en) * | 2009-12-25 | 2011-01-12 | 中山大洋电机股份有限公司 | A blower structure |
| CN204099245U (en) * | 2014-09-03 | 2015-01-14 | 中山大洋电机制造有限公司 | A kind of blower |
| CN205001225U (en) * | 2015-07-31 | 2016-01-27 | 中山大洋电机股份有限公司 | a fan |
| CN205401188U (en) * | 2016-03-11 | 2016-07-27 | 广州市鑫风风机有限公司 | Vertical fan with motor supporting frame and heat abstractor |
| CN208348121U (en) * | 2018-06-20 | 2019-01-08 | 温州市爱光机电设备有限公司 | A kind of blower |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404339A (en) * | 2018-12-18 | 2019-03-01 | 南京磁谷科技有限公司 | A kind of spiral case component for the straight drive centrifugal fan of high speed electricity |
| CN109404339B (en) * | 2018-12-18 | 2023-09-22 | 南京磁谷科技有限公司 | Volute assembly for high-speed electric direct-drive centrifugal fan |
| CN114076107A (en) * | 2020-08-18 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Fan assembly and range hood |
| CN114076107B (en) * | 2020-08-18 | 2023-12-26 | 佛山市顺德区美的洗涤电器制造有限公司 | Fan assembly and range hood |
| CN113374706A (en) * | 2021-06-22 | 2021-09-10 | 铁善奎 | Multistage centrifugal blower |
| CN113374706B (en) * | 2021-06-22 | 2024-05-24 | 徐春青 | Multistage centrifugal blower |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181120 |