CN108223457A - A kind of cooling denoising device of household fan motor - Google Patents
A kind of cooling denoising device of household fan motor Download PDFInfo
- Publication number
- CN108223457A CN108223457A CN201711357010.0A CN201711357010A CN108223457A CN 108223457 A CN108223457 A CN 108223457A CN 201711357010 A CN201711357010 A CN 201711357010A CN 108223457 A CN108223457 A CN 108223457A
- Authority
- CN
- China
- Prior art keywords
- motor
- chamber
- impeller
- air inlet
- axle sleeve
- 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.)
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
-
- 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
-
- 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
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
-
- 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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of cooling denoising devices of household fan motor, including motor cover, air inlet, air inlet grid, gas flow, enter the wind chamber, wheel chamber, noise reduction chamber, screens, impeller, impeller outer circle rack, impeller inner circle rack, guiding rib, wheel rotation axis, internal axle sleeve, bottom bracket axle, outer shaft, protrusion, axle sleeve part, integrated disc portions, motor, motor rack, demarcation strip, bloop, arc panel, air outlet, outlet grid, cooling jacket, the side of motor cover is provided with air inlet, air inlet is provided with air inlet grid, gas flow is formed between two adjacent air inlet grids, air inlet chamber is provided in motor cover, wheel chamber and noise reduction chamber, air inlet chamber is connected with wheel chamber, wheel chamber and noise reduction chamber, the opposite side of motor cover is provided with air outlet；Cooling device is provided on motor.The present invention can effectively reduce noise and the vibration of electric fan, cool down motor.
Description
Technical field
The cooling denoising device of of the invention and a kind of household fan motor.
Background technology
While cooling fan of engine increases load, fan noise can also increase.Usually in the slow-speed of revolution, fan is made an uproar
Sound is not obvious, but in high rotating speed, and fan noise often becomes maximum noise source.Interference rest and sleep influence work
Efficiency, long term can make corticocerebral excited and inhibit imbalance, conditioned reflex is abnormal, goes out in the central nervous system of people
Symptoms, the severe patient such as existing dizziness, headache, tinnitus, dreaminess, insomnia, nervous, failure of memory, absent minded can generate essence
Amentia.
Invention content
The technical problem to be solved in the present invention is to provide a kind of cooling denoising devices of household fan motor.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of cooling denoising device of household fan motor, including motor cover, air inlet, air inlet grid, gas flow, air-inlet cavity
Room, wheel chamber, noise reduction chamber, screens, impeller, impeller outer circle rack, impeller inner circle rack, guiding rib, wheel rotation axis, inner shaft
Set, bottom bracket axle, outer shaft, protrusion, axle sleeve part, integrated disc portions, motor, motor rack, demarcation strip, bloop, arc panel, outlet air
Mouth, outlet grid, cooling jacket, the side of motor cover are provided with air inlet, and air inlet is provided with air inlet grid, and adjacent two
Gas flow is formed between a air inlet grid, air inlet chamber, wheel chamber and noise reduction chamber are provided in motor cover, enters the wind chamber
It is connected with wheel chamber, wheel chamber and noise reduction chamber, the opposite side of motor cover are provided with air outlet；It is provided on motor
Cooling device.
Further, the screens are arranged between air inlet chamber and wheel chamber, and impeller is arranged in wheel chamber,
Screens are arranged on the front side of impeller, and the inner wall of motor cover is fixedly installed impeller outer circle rack, impeller outer circle rack setting impeller cavity
Interior, impeller outer circle rack are internally provided with impeller inner circle rack, and impeller is fixed between impeller outer circle rack and impeller inner circle rack, impeller
Guiding rib is provided on inner circle rack, guiding rib is extended from impeller inner circle rack to impeller outer circle rack direction, and wheel rotation axis passes through leaf
Wheel inner circle rack is connect with impeller, and wheel rotation axial direction noise reduction chamber direction extension, noise reduction axle sleeve is set on wheel rotation axis.
Further, the noise reduction axle sleeve includes internal axle sleeve, bottom bracket axle and outer shaft, and internal axle sleeve is hollow cylindrical shape,
Internal axle sleeve is set in the outside of wheel rotation axis, and internal axle sleeve is fitted tightly on wheel rotation axis, is set on the lateral surface of internal axle sleeve
Groove is equipped with, the medial surface of bottom bracket axle, which is provided with, to be set in the corresponding protrusion of groove, bottom bracket axle on the lateral surface of internal axle sleeve,
Bottom bracket axle is stuck in the groove of internal axle sleeve by protrusion and is connect with internal axle sleeve, and bottom bracket axle has axle sleeve part and integrated disc portions, outside
Axle sleeve is fixed at the upper surface of the integrated disc portions of bottom bracket axle, and the axis of internal axle sleeve, bottom bracket axle and outer shaft is same center
Line.
Further, the internal axle sleeve and outer shaft are made of rubber material, and bottom bracket axle is made of porous metal material.
Further, motor is provided in the silencing cavity room, the other end of wheel rotation axis passes through demarcation strip and motor
Connection, demarcation strip separate the wheel chamber in motor cover and noise reduction chamber, and motor is fixed on motor rack, and motor rack is fixed
On demarcation strip, bloop is horizontally arranged between motor rack and motor cover, noise reduction material is filled between bloop and motor rack
Material, the cover body of the motor cover where noise reduction chamber is arc panel, and the side wall of motor cover is provided with air outlet, air outlet and bloop
It is vertically arranged, outlet grid is provided at air outlet, outlet grid is obliquely installed.
Further, the cooling device is cooling jacket, and cooling jacket is arranged on the outside of motor, and cooling jacket is in spiral shell
Rotation shape is looped around the lateral surface of motor, and cooling jacket is made of inner sleeve and housing, and inner sleeve has identical ripple, ripple with housing
It is formed by arc-shaped wave crest and trough, condensed water is provided between inner sleeve and housing.
Further, the windward side of the air inlet grid is arc surface.
Further, the air inlet grid is in streamlined.
Beneficial effects of the present invention：Gas flow is formed between the air inlet grid of the present invention to disperse air-flow, it can be effective
Reduce windage.Screens can effectively reduce the aerodynamic noise of impeller.The internal axle sleeve of noise reduction axle sleeve being arranged on wheel rotation axis
It is made with outer shaft of rubber material, cushioning effect is played to the effect of external force, bottom bracket axle is made of porous metal material, absorbs
Impact energy, has cushioning effect, and noise reduction axle sleeve can reduce noise and vibration.Inside the cooling jacket of the outside setting of motor
Condensation flow is connected with, condensation flow takes away the heat that motor generates so that motor cools down.
Description of the drawings
It, below will be to needed in the embodiment in order to more clearly illustrate the technical solution in the embodiment of the present invention
Attached drawing is simply introduced, it should be apparent that, the accompanying drawings in the following description is only some embodiments described in the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structure diagram of impeller.
Fig. 3 is the structure diagram of noise reduction axle sleeve.
Fig. 4 is the structure diagram of cooling jacket.
Fig. 5 is the structure diagram that cooling jacket is connect with motor.
Specific embodiment
Technical scheme of the present invention will be clearly and completely described by specific embodiment below.
A kind of cooling denoising device of household fan motor, including motor cover 1, air inlet 2, air inlet grid 3, gas flow
4th, it enters the wind chamber 5, wheel chamber 6, noise reduction chamber 7, screens 8, impeller 9, impeller outer circle rack 10, impeller inner circle rack 11, be oriented to
Muscle 12, wheel rotation axis 13, internal axle sleeve 14, bottom bracket axle 15, outer shaft 16, protrusion 17, axle sleeve part 18, integrated disc portions 19, electricity
Machine 20, motor rack 21, demarcation strip 22, bloop 23, arc panel 24, air outlet 25, outlet grid 26, cooling jacket 27, inner sleeve
28 with housing 29.
As shown in Figure 1, the side of motor cover 1 is provided with air inlet 2, be provided with air inlet grid 3 at air inlet 2, air-flow from
Air inlet enters by air inlet grid in motor cover, and the windward side of air inlet grid 3 is arc surface, and air inlet grid 3 is in streamlined, phase
Gas flow 4 is formed between two adjacent air inlet grids 3, gas flow 4 disperses air-flow, can effectively reduce windage.
Air inlet chamber 5, wheel chamber 6 and noise reduction chamber 7 are provided in motor cover 1, air inlet chamber 5 connects with wheel chamber 6
Logical, wheel chamber 6 is connected with noise reduction chamber 7.
Screens 8 are arranged between air inlet chamber 5 and wheel chamber 6, and screens 8 are arranged on the front side of impeller 9, screens
8 can effectively reduce the aerodynamic noise of impeller.Impeller 9 is provided in wheel chamber 6.As shown in Fig. 2, the inner wall of motor cover 1 is consolidated
Surely impeller outer circle rack 10 is provided with, impeller outer circle rack 10 is set in wheel chamber 6, and impeller 9 is fixed on impeller outer circle rack 10 and leaf
Between wheel inner circle rack 11.It is provided with guiding rib 12 on impeller inner circle rack 11, guiding rib 12 is from impeller inner circle rack 11 to impeller outer ring
10 direction of frame extends, and guiding rib 12 has guide functions, and guiding rib 12 has remarkable effect to the raising of impeller performance, reduces
The noise that impeller 9 rotates.
Wheel rotation axis 13 is connect across impeller inner circle rack 11 with impeller 9, and wheel rotation axis 13 prolongs to noise reduction chamber direction
It stretches, noise reduction axle sleeve is set on wheel rotation axis 13.As shown in figure 3, noise reduction axle sleeve includes internal axle sleeve 14, bottom bracket axle 15 and outer shaft
Set 16.Internal axle sleeve 14 is hollow cylindrical shape, and internal axle sleeve 14 is set in the outside of wheel rotation axis 13, the lateral surface of internal axle sleeve 14
Upper setting is fluted, and the medial surface of bottom bracket axle 15 is provided with protrusion 17 corresponding with groove, and bottom bracket axle 15 is arranged on internal axle sleeve
14 outside, bottom bracket axle 15 are stuck in the groove of internal axle sleeve 14 by protrusion 17 and are connect with internal axle sleeve 14.Bottom bracket axle 15 is axle sleeve
Part 18 and the combination of integrated disc portions 19, outer shaft 16 are fixed at 19 upper surface of integrated disc portions of bottom bracket axle 15, inner shaft
Cover 14, bottom bracket axle 15, the axis of outer shaft 16 is same center line.Internal axle sleeve 14 and outer shaft 16 are made of rubber material, tool
There is preferable elasticity, internal axle sleeve 14 is fitted tightly on wheel rotation axis 13.Bottom bracket axle 15 is made of porous metal material, porous
The mechanics features such as metal material has lightweight, high rigidity, wear-resisting, impact energy absorbability is strong, play the effect of external force slow
Punching acts on, and has cushioning effect.Noise reduction axle sleeve can reduce noise and vibration.
Motor 20 is provided in noise reduction chamber 7, the other end of wheel rotation axis 13 is connect across demarcation strip 22 with motor 20,
Motor 20 is fixed on motor rack 21, and motor rack 21 is fixed on demarcation strip 22, and demarcation strip 22 is by the wheel chamber in motor cover 1
6 and noise reduction chamber 7 separate.Bloop 23 is provided between motor rack 21 and motor cover 1, between bloop 23 and motor rack 21
Filled with quieter material.The cover body of motor cover 1 where noise reduction chamber 7 is arc panel 24, arc panel 24 to the sound wave of noise into
Row reflection and weakening, effectively reduce noise.
The side wall of motor cover 1 is provided with air outlet 25, and outlet grid 26 is provided at air outlet 25.Outlet grid 26 tilts
Setting, the tilt angle ranges of outlet grid 26 are between 30-45 degree.
As shown in Figure 4,5, it is provided with cooling device on motor 20, cooling device is cooling jacket 27, the outside of motor 20
Cooling jacket 27 is provided with, cooling jacket 27 is made of inner sleeve 28 and housing 29, and inner sleeve 28 has identical ripple with housing 29,
Ripple is formed by arc-shaped wave crest 30 and trough 31, and the cooling jacket 27 of composition is corrugated.Between inner sleeve 28 and housing 29
Condensed water is provided with, cooling jacket 27 is looped around the lateral surface of motor 20, condensed water is connected with inside cooling jacket 27 in the shape of a spiral
Stream, condensation flow take away the heat that motor 20 generates, and complete the cooling procedure of motor 20.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the design of the present invention
It is defined with range, under the premise of design concept of the present invention is not departed from, ordinary skill technical staff is to this hair in this field
The all variations and modifications that bright technical solution is made should all fall into protection scope of the present invention, claimed skill of the invention
Art content is all documented in technology claim.
Claims (8)
1. a kind of cooling denoising device of household fan motor, it is characterised in that：Including motor cover（1）, air inlet（2）, air inlet
Grid（3）, gas flow（4）, air inlet chamber（5）, wheel chamber（6）, noise reduction chamber（7）, screens（8）, impeller（9）, leaf
Take turns outer circle rack（10）, impeller inner circle rack（11）, guiding rib（12）, wheel rotation axis（13）, internal axle sleeve（14）, bottom bracket axle（15）、
Outer shaft（16）, protrusion（17）, axle sleeve part（18）, integrated disc portions（19）, motor（20）, motor rack（21）, demarcation strip（22）、
Bloop（23）, arc panel（24）, air outlet（25）, outlet grid（26）, cooling jacket（27）, motor cover（1）Side set
It is equipped with air inlet（2）, air inlet（2）Place is provided with air inlet grid（3）, adjacent two air inlet grids（3）Between form gas
Runner（4）, motor cover（1）Inside it is provided with air inlet chamber（5）, wheel chamber（6）With noise reduction chamber（7）, enter the wind chamber（5）With leaf
Take turns chamber（6）Connection, wheel chamber（6）With noise reduction chamber（7）Connection, motor cover（1）Opposite side be provided with air outlet（25）；
Motor（20）On be provided with cooling device.
2. a kind of cooling denoising device of household fan motor according to claim 1, it is characterised in that：The screens
（8）It is arranged on air inlet chamber（5）With wheel chamber（6）Between, impeller（9）It is arranged on wheel chamber（6）It is interior, screens（8）If
It puts in impeller（9）Front side, motor cover（1）Inner wall be fixedly installed impeller outer circle rack（10）, impeller outer circle rack（10）Setting
Wheel chamber（6）It is interior, impeller outer circle rack（10）It is internally provided with impeller inner circle rack（11）, impeller（9）It is fixed on impeller outer circle rack
（10）With impeller inner circle rack（11）Between, impeller inner circle rack（11）On be provided with guiding rib（12）, guiding rib（12）By in impeller
Coil（11）To impeller outer circle rack（10）Direction extends, wheel rotation axis（13）Across impeller inner circle rack（11）With impeller（9）Even
It connects, wheel rotation axis（13）To noise reduction chamber（7）Direction extends, and noise reduction axle sleeve is set in wheel rotation axis（13）On.
3. a kind of cooling denoising device of household fan motor according to claim 2, it is characterised in that：The noise reduction axis
Set includes internal axle sleeve（14）, bottom bracket axle（15）And outer shaft（16）, internal axle sleeve（14）For hollow cylindrical shape, internal axle sleeve（14）Set
It is located at wheel rotation axis（13）Outside, internal axle sleeve（14）It is fitted tightly over wheel rotation axis（13）On, internal axle sleeve（14）It is outer
Fluted, bottom bracket axle is set on side（15）Medial surface be provided with and the corresponding protrusion of groove（17）, bottom bracket axle（15）Set
It is located at internal axle sleeve（14）Lateral surface on, bottom bracket axle（15）Pass through protrusion（17）It is stuck in internal axle sleeve（14）Groove in and internal axle sleeve
（14）Connection, bottom bracket axle（15）With axle sleeve part（18）With integrated disc portions（19）, outer shaft（16）It is fixed at bottom bracket axle
（15）Integrated disc portions（19）Upper surface, internal axle sleeve（14）, bottom bracket axle（15）And outer shaft（16）Axis be same center
Line.
4. a kind of cooling denoising device of household fan motor according to claim 3, it is characterised in that：The inner shaft
Set（14）And outer shaft（16）It is made of rubber material, bottom bracket axle（15）It is made of porous metal material.
5. a kind of cooling denoising device of household fan motor according to claim 2, it is characterised in that：The silencing cavity
Room（7）Inside it is provided with motor（20）, wheel rotation axis（13）The other end pass through demarcation strip（22）With motor（20）Connection separates
Plate（22）By motor cover（1）In wheel chamber（6）With noise reduction chamber（7）It separates, motor（20）It is fixed on motor rack（21）
On, motor rack（21）It is fixed on demarcation strip（22）On, motor rack（21）With motor cover（1）Between be horizontally arranged with bloop
（23）, bloop（23）With motor rack（21）Between filled with quieter material, noise reduction chamber（7）The motor cover at place（1）Cover
Body is arc panel（24）, motor cover（1）Side wall be provided with air outlet（25）, air outlet（25）With bloop（23）Vertically set
It puts, air outlet（25）Place is provided with outlet grid（26）, outlet grid（26）It is obliquely installed.
6. a kind of cooling denoising device of household fan motor according to claim 1, it is characterised in that：The cooling dress
It is set to cooling jacket（27）, cooling jacket（27）It is arranged on motor（20）Outside, cooling jacket（27）It is looped around in the shape of a spiral
Motor（20）Lateral surface, cooling jacket（27）By inner sleeve（28）With housing（29）It forms, inner sleeve（28）With housing（29）Have
Identical ripple, ripple is by arc-shaped wave crest（30）And trough（31）It is formed, inner sleeve（28）With housing（29）Between be provided with
Condensed water.
7. a kind of cooling denoising device of household fan motor according to claim 1, it is characterised in that：The air inlet grill
Lattice（3）Windward side be arc surface.
8. a kind of cooling denoising device of household fan motor according to claim 1, it is characterised in that：The air inlet grill
Lattice（3）In streamlined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711357010.0A CN108223457A (en) | 2017-12-16 | 2017-12-16 | A kind of cooling denoising device of household fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711357010.0A CN108223457A (en) | 2017-12-16 | 2017-12-16 | A kind of cooling denoising device of household fan motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223457A true CN108223457A (en) | 2018-06-29 |
Family
ID=62652225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711357010.0A Withdrawn CN108223457A (en) | 2017-12-16 | 2017-12-16 | A kind of cooling denoising device of household fan motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223457A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111835130A (en) * | 2020-06-29 | 2020-10-27 | 添可智能科技有限公司 | Motor element and cleaning equipment |
| CN113915235A (en) * | 2021-09-29 | 2022-01-11 | 安庆帝伯格茨缸套有限公司 | Motor end cover shaft sleeve and preparation method thereof |
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| CN101105190A (en) * | 2006-07-12 | 2008-01-16 | 株式会社日立工业设备技术 | Multi stage diffuser pump |
| CN101349291A (en) * | 2008-03-04 | 2009-01-21 | 浙江亿利达风机有限公司 | Noise reducing fan |
| CN201582145U (en) * | 2009-11-09 | 2010-09-15 | 镇江正汉泵业有限公司 | Deep well brine extracting submersible pump |
| CN102374178A (en) * | 2010-08-12 | 2012-03-14 | 施乐百股份公司 | Ventilator |
| CN102996462A (en) * | 2011-08-30 | 2013-03-27 | 株式会社不二工机 | Drain pump |
| CN204458543U (en) * | 2014-12-30 | 2015-07-08 | 重庆水泵厂有限责任公司 | A kind of shaft seal cooling structure for high temperature pump |
| CN107339259A (en) * | 2017-04-11 | 2017-11-10 | 宁波方太厨具有限公司 | A kind of multi-wing centrifugal fan |
-
2017
- 2017-12-16 CN CN201711357010.0A patent/CN108223457A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105190A (en) * | 2006-07-12 | 2008-01-16 | 株式会社日立工业设备技术 | Multi stage diffuser pump |
| CN101349291A (en) * | 2008-03-04 | 2009-01-21 | 浙江亿利达风机有限公司 | Noise reducing fan |
| CN201582145U (en) * | 2009-11-09 | 2010-09-15 | 镇江正汉泵业有限公司 | Deep well brine extracting submersible pump |
| CN102374178A (en) * | 2010-08-12 | 2012-03-14 | 施乐百股份公司 | Ventilator |
| CN102996462A (en) * | 2011-08-30 | 2013-03-27 | 株式会社不二工机 | Drain pump |
| CN204458543U (en) * | 2014-12-30 | 2015-07-08 | 重庆水泵厂有限责任公司 | A kind of shaft seal cooling structure for high temperature pump |
| CN107339259A (en) * | 2017-04-11 | 2017-11-10 | 宁波方太厨具有限公司 | A kind of multi-wing centrifugal fan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111835130A (en) * | 2020-06-29 | 2020-10-27 | 添可智能科技有限公司 | Motor element and cleaning equipment |
| CN113915235A (en) * | 2021-09-29 | 2022-01-11 | 安庆帝伯格茨缸套有限公司 | Motor end cover shaft sleeve and preparation method thereof |
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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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180629 |