CN106787395B - A kind of direct current induced-draught electric motor - Google Patents
A kind of direct current induced-draught electric motor Download PDFInfo
- Publication number
- CN106787395B CN106787395B CN201611197582.2A CN201611197582A CN106787395B CN 106787395 B CN106787395 B CN 106787395B CN 201611197582 A CN201611197582 A CN 201611197582A CN 106787395 B CN106787395 B CN 106787395B
- Authority
- CN
- China
- Prior art keywords
- ball grooves
- center
- circle
- twice
- circular arc
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of direct current induced-draught electric motor, including electric machine casing and to be set to motor casing intracorporal stator assembly and rotor assembly.Rotor assembly includes the shaft for being equipped with impeller and rotor.Electric machine casing has column type ontology, is formed with the axle hole of installation shaft in the axle center of column type ontology.The front end face outer rim of column type ontology is formed with ring-shaped step, and annular step surface is integrally formed with the guide vane and supporter being spaced apart, and impeller is located at the inside of ring-shaped step, and is surrounded by each guide vane.Electric machine casing is fixedly arranged above end cap, and end cap is formed with the installation position mutually chimeric with supporter.Edge fits on the inner wall and guide vane of end cap.It is formed with air-flow suction inlet at the center of end cap, air-flow is after impeller sucks, and wind guide channel between each guide vane is discharged between end cap outer rim and front end face outer rim.
Description
Technical field
The present invention relates to a kind of motor, specifically a kind of direct current induced-draught electric motor.
Background technique
The rotor assembly of direct current generator may include impeller, and the impeller is relative to the cover rotation being fixed in turbine.Direct current
Motor is mainly used for dust catcher, hand dryer etc. as vacuumizing driving source, the motor part revolving speed of turbine can be up to 50,000 to
100000 rpm.Very high to the required precision of rotor assembly under this high revolving speed, the bearing of rotor assembly is difficult during rotation
Exempt to have and jump, rotor assembly will lead to vibration of the impeller relative to cover since unbalanced power shakes, and generate noise.
The patent of invention that number of patent application is 201280041747.0 discloses a kind of rotor assembly, which includes
Axis, bearing assembly, impeller and cover, the impeller and bearing assembly are mounted to axis, and the cover is mounted to bearing assembly to cover
Lid impeller.It is installed in bearing assembly that will cover, impeller is rotated freely through relative to cover.Since cover forms one of rotor assembly
Point, the displacement of the impeller as caused by the vibration of rotor assembly along with cover displacement.It is not examining in gap between impeller and cover
It is kept in the case where the vibration for considering rotor assembly.As a result, less noise is generated by rotor assembly during operation.Cover is pacified
Bearing assembly is attached to also allow for establishing the gap well limited between impeller and cover.Particularly, gap can not be by turbine
The installation or alignment of rotor assembly in machine influence.
As shown in Figure 1,91 component of bearing of the patent disclosure may include a pair of bearing spaced apart surrounded by sleeve 9
91.This, which is covered in, is mounted to sleeve 9, and sleeve 9 provides relatively large surface, and covering in is to be mounted on a surface.Relatively
Good fixation can be formed between 91 component of cover and bearing.Additionally, the bearing 91 spaced apart surrounded by sleeve 9 is arranged
The rigidity for increasing rotor assembly is applied, and then leads to higher first flexure frequency.Therefore, which can make more
It is operated at high subcritical speed.
The prior art of the patent disclosure, due to inevitably there is dress between bearing inner race, bearing outer ring and ball
With gap, under tens of thousands of turns of high speed rotation, which plays very big influence to the stability of rotor.In the prior art,
In order to eliminate the influence of bearing inner race and bearing outer ring, keep stability under rotor high speed and mute, two bearings 91 in addition to
It is surrounded outside by sleeve 9, also spring 92 is assembled between two bearings 91, between the outer ring that two bearings 91 are made by spring 92
There are repulsion, to offset the power that jumps of a part.Although the prior art greatly improves the performance of rotor at high speeds, but
Assembling structure is complicated, and eliminates the influence that jumps by spring force, has certain scope of application, when load is more than spring force still
It will affect the stability of shaft.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to above-mentioned state of the art, and provide a kind of direct current air draught electricity
Machine enormously simplifies the structure of revolute pair, avoids and jumps and shake caused by bearing, greatly improves rotor assembly and turns in high speed
Stability and quietness under dynamic.
The technical scheme of the invention to solve the technical problem is: a kind of direct current induced-draught electric motor, including motor casing
Body and be set to motor casing it is intracorporal stator assembly and rotor assembly.Rotor assembly includes the shaft for being equipped with impeller and rotor.
Electric machine casing has column type ontology, is formed with the axle hole of installation shaft in the axle center of column type ontology.Outside the front end face of column type ontology
Edge is formed with ring-shaped step, and annular step surface is integrally formed with the guide vane and supporter being spaced apart, and impeller is located at ring-shaped step
Inside, and surrounded by each guide vane.Electric machine casing is fixedly arranged above end cap, and end cap is formed with the peace mutually chimeric with supporter
Fill position.Edge fits on the inner wall and guide vane of end cap.It is formed with air-flow suction inlet at the center of end cap, air-flow is sucked by impeller
Afterwards, the wind guide channel between each guide vane is discharged between end cap outer rim and front end face outer rim.
To optimize above-mentioned technical proposal, the invention also includes following improved technical solutions.
Above-mentioned supporter has the fixation convex body to raise upward along electric machine casing outer wall, and prolongs to ring-shaped step internal diameter
The air guiding member stretched, there are two the wind-guiding side wall of arc, two wind-guiding side walls to constitute point close to the intersection of one end of impeller for air guiding member tool
End.
Above-mentioned impeller has bottom plate and upper cover, and the center of upper cover is formed with the air inlet to raise upward, bottom plate and upper cover it
Between be fixed with rotating vane, rotating vane is being distributed in air inlet periphery.
Above-mentioned ring-shaped step is formed with 8 to 12 guide vanes being integrally connected.The minimum interval of rotating vane and guide vane
Distance is less than or equal to 0.4mm.
The appearance face interval of above-mentioned shaft is formed with the first ball grooves of twice annular, and the outer cover of shaft, which is equipped with, surrounds twice
The installation set of first ball grooves, the inner wall interval of installation set are formed with corresponding second ball grooves of twice, in the first ball grooves and
A circle ball is equipped between two ball grooves.
Retainer is equipped between above-mentioned installation set and shaft, retainer has the interval body for separating each ball.
The first axis section of above-mentioned first ball grooves and the second axial cross section of the second ball grooves are respectively arc surface.The
The radius of the radius of one axial cross section and the second axial cross section is respectively greater than the radius of ball.
The center of circle in above-mentioned the first circular arc of any side center of circle, the second circular arc center of circle and ball interlaces out.
The first circular arc distance of center circle between above-mentioned the first ball grooves of twice is greater than the second circle between the second ball grooves of twice
Arc distance of center circle, and the second circular arc center of circle of the second ball grooves of twice is located between the first circular arc center of circle of the first ball grooves of twice.
The first circular arc distance of center circle between above-mentioned the first ball grooves of twice is less than the second circle between the second ball grooves of twice
Arc distance of center circle, and the first circular arc center of circle of the first ball grooves of twice is located between the second circular arc center of circle of the second ball grooves of twice.
Compared with prior art, a kind of direct current induced-draught electric motor of the invention, using novel electric machine casing, in electric machine casing
On be integrated with guide vane and supporter, it is equipped by electric machine casing and end cap, efficient wind guide channel is constituted between guide vane,
The air-flow of impeller sucking is discharged directly between electric machine casing and end cap, optimizes the air output in air duct, improves the work of impeller
Make efficiency, and pneumatic noise can be effectively reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of shaft in the prior art.
Fig. 2 is the structural schematic diagram of shaft in the present invention.
Fig. 3 is the B-B direction sectional view of Fig. 2.
Fig. 4 is the portion the A partial enlargement diagram in Fig. 3.
Fig. 5 is assembling decomposition diagram of the invention.
Fig. 6 is the schematic diagram of the section structure of the invention.
Fig. 7 is the C-C of Fig. 6 to sectional view.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Fig. 1 to Fig. 7 show structural schematic diagram of the invention.
Appended drawing reference therein are as follows: shaft 1, the first ball grooves 1a, first axis section 1b, the first circular arc center of circle 1c, rolling
Pearl 11, installation set 2, the second ball grooves 2a, the second axial cross section 2b, the second circular arc center of circle 2c, retainer 3, impeller 4, bottom plate 41,
Upper cover 42, air inlet 42a, rotating vane 43, electric machine casing 5, front end face 51, axle hole 51a, ring-shaped step 51b, guide vane
52, supporter 53, fixed convex body 53a, wind-guiding side wall 53b, wind guide channel 54, end cap 6, sleeve 9, bearing 91, spring 92.
A kind of direct current induced-draught electric motor of the invention, stator module including electric machine casing 5 and in electric machine casing 5 and
Rotor assembly.Rotor assembly includes the shaft 1 for being equipped with impeller 4 and rotor.
The inside of electric machine casing 5 is formed with the front end face 51 being integrally connected with electric machine casing 5, and the middle part of front end face 51 has peace
Fill the axle hole 51a of shaft 1.Shaft 1 passes through front end face 51, and is rotatably installed in the 51a of axle hole.
Impeller 4 is located at the outside of front end face 51, and the guide vane 52 around impeller 4 is integrally formed on front end face 51.
Electric machine casing 5 has column type ontology, is formed with the axle hole 51a of installation shaft 1 in the axle center of column type ontology.Column type sheet
51 outer rim of front end face of body is formed with ring-shaped step 51b, and the surface ring-shaped step 51b is integrally formed with the guide vane 52 being spaced apart and branch
Support body 53, impeller 4 is located at the inside of ring-shaped step 51b, and is surrounded by each guide vane 52.
Electric machine casing 5 is fixedly arranged above end cap 6, and end cap 6 is formed with the installation position mutually chimeric with supporter 53.End cap 6
Inner wall fits with edge on guide vane 52.It is formed with air-flow suction inlet at the center of end cap 6, air-flow is after the sucking of impeller 4, along each
Wind guide channel 54 between a guide vane 52 is discharged between 51 outer rim of 6 outer rim of end cap and front end face.
Supporter 53 has the fixation convex body 53a to raise upward along 5 outer wall of electric machine casing, and into ring-shaped step 51b
The air guiding member that diameter extends.Air guiding member tool is there are two the wind-guiding side wall 53b of arc, and two wind-guiding side wall 53b are close to one end of impeller 4
Intersection constitutes tip.
Impeller 4 has bottom plate 41 and upper cover 42, and the center of upper cover 42 is formed with the air inlet 42a to raise upward, 41 He of bottom plate
Rotating vane 43 is fixed between upper cover 42, rotating vane 43 is being distributed in the periphery air inlet 42a.Shaft 1 can be with impeller 4
With tens of thousands of rpms of high speed rotation, impeller 4 is sucked air-flow from air inlet 42a by rotating vane 43, and by air-flow to
The wind guide channel 54 of 4 periphery of impeller is discharged.
Ring-shaped step 51b is formed with 8 to 12 guide vanes 52 being integrally connected.Between rotating vane 43 and the minimum of guide vane 52
Gauge is from less than or equal to 0.4mm.Guide vane 52 is symmetrical centered on the axle center of shaft 1, and the radian of each guide vane 52 is in
Involute-type can quickly guide air-flow to be discharged from wind guide channel 54, reduce airflow noise, improve air-flow and pass through efficiency.
When 4 high speed rotation of impeller, air stream enters impeller 4 from air inlet 42a, is discharged into wind guide channel by rotating vane 43
54.Rotating vane 43 and the spacing distance of guide vane 52 are smaller, and pneumatic noise is smaller, while air mass flow can be improved.
Each guide vane 52 is equidistantly arranged in front on the outer wall of end face 51, entrance of the wind guide channel 54 close to rotating vane 43
Width is less than the exit width of wind guide channel 54.
It is formed with the first ball grooves 1a of twice annular in the appearance face interval of shaft 1, the outer cover of shaft 1, which is equipped with, surrounds two
The installation set 2 of road the first ball grooves 1a, the inner wall interval of installation set 2 are formed with the corresponding second ball grooves 2a of twice, in the first rolling
A circle ball 11 is equipped between pearl slot 1a and the second ball grooves 2a.In the present invention, shaft 1 and installation set 2 directly constitute revolute pair,
It does not need to install bearing additional between.Two circle balls 11 are separately positioned between twice the first ball grooves 1a and the second ball grooves 2a,
Since shaft 1 and installation set 2 are all rigid bodies, constrain two circle balls 11 in the stability of high-speed rotation process, greatly improve
The high speed running performance of shaft 1, and reduce noise etc. and influence.
Retainer 3 is equipped between installation set 2 and shaft 1.The ontology of retainer 3 is annular, has on annular solid and separates
The interval body of each ball 11.Retainer 3 is packed into from the both ends of installation set 2, is fixed with closing set again in the end of installation set 2.
The second axial cross section 2b of the first axis section 1b of first ball grooves 1a and the second ball grooves 2a is respectively circular arc
Face.The radius of the radius of first axis section 1b and the second axial cross section 2b are respectively greater than the radius of ball 11.
Any side the first circular arc center of circle 1c, the second circular arc center of circle 2c and ball 11 the center of circle interlace out.
In a preferred embodiment, the first circular arc distance of center circle between the first ball grooves of twice 1a is rolled greater than twice second
The second circular arc distance of center circle between pearl slot 2a, and the second circular arc center of circle 2c of the second ball grooves of twice 2a is located at the first ball of twice
Between the first circular arc center of circle 1c of slot 1a.Therefore, any the first circular arc of side center of circle 1c, the second circular arc center of circle 2c and ball 11
The center of circle is staggered.
In the present invention, since shaft 1 and installation set 2 are all an entirety, two circle balls 11 directly with shaft 1 and installation set
2 match.As shown in figure 4, the second circular arc circle of the first circular arc center of circle 1c and the second ball grooves 2a of the first ball grooves of twice 1a
Heart 2c is not overlapped.So being and the first rolling when the ball 11 on right side is packed between the first ball grooves 1a and the second ball grooves 2a
The left side of pearl slot 1a matches, while matching with the right side of the second ball grooves 2a, while the ball 11 in left side is exactly
Symmetrically.Since the center of circle at two circle balls 11 is not overlapped, meeting nature generates the restraining force to centre under high-speed rotation, with
It jumps and shakes caused by payment load or external environment.Although the radius ratio ball of the first ball grooves 1a and the second ball grooves 2a
11 radiuses are big, and there are fit-up gaps.But can still eliminate the influence of fit-up gap after the loading of ball 11, automatically with the first ball
Slot 1a and the second ball grooves 2a is fitted close.In this way, can there is two circle balls 11 when shaft 1 is relative to 2 high-speed rotation of installation set
Effect prevent shaft 1 in the axial direction jump and shaking radially.
In another preferred embodiment, the first circular arc distance of center circle between the first ball grooves of twice 1a can be less than two
The second circular arc distance of center circle between road the second ball grooves 2a, and the first circular arc center of circle 1c of the first ball grooves of twice 1a is located at twice
Between the second circular arc center of circle 2c of second ball grooves 2a.In this embodiment, the first circular arc center of circle 1c of any side, second
Circular arc center of circle 2c is same as the center of circle of ball 11 to be staggered.
Highly preferred embodiment of the present invention has illustrated, and the various change or remodeling made by those of ordinary skill in the art are not
It can depart from the scope of the present invention.
Claims (7)
1. a kind of direct current induced-draught electric motor, including electric machine casing (5) and the stator module being set in electric machine casing (5) and rotor set
Part, it is characterized in that: the rotor assembly includes the shaft (1) for being equipped with impeller (4) and rotor；The electric machine casing (5)
With column type ontology, the axle hole (51a) of installation shaft (1) is formed in the axle center of column type ontology；The front end of the column type ontology
Face (51) outer rim is formed with ring-shaped step (51b), and the surface the ring-shaped step (51b) is integrally formed with the guide vane being spaced apart
(52) and supporter (53), the impeller (4) is located at the inside of ring-shaped step (51b), and is surrounded by each guide vane (52)；
The electric machine casing (5) is fixedly arranged above end cap (6), and the end cap (6) is formed with the installation mutually chimeric with supporter (53)
Position；The inner wall of end cap (6) fits with edge on guide vane (52)；Air-flow suction inlet, the gas are formed at the center of end cap (6)
It flows after impeller (4) sucking, the wind guide channel (54) between each guide vane (52), from end cap (6) outer rim and front end face
(51) it is discharged between outer rim；The appearance face interval of the shaft (1) is formed with the first ball grooves (1a) of twice annular, the shaft
(1) outer cover is equipped with the installation set (2) for surrounding first ball grooves of twice (1a), the inner wall interval of the installation set (2)
Corresponding second ball grooves (2a) of twice are formed with, one is equipped between first ball grooves (1a) and the second ball grooves (2a)
It encloses ball (11)；The first axis section (1b) of first ball grooves (1a) and the second axial cross section of the second ball grooves (2a)
(2b) is respectively arc surface；The radius of the first axis section (1b) and the radius of the second axial cross section (2b), which are respectively greater than, to be rolled
The radius of pearl (11)；Phase is distinguished in any side the first circular arc center of circle (1c), the second circular arc center of circle (2c) and the center of circle of ball (11)
It is staggered.
2. a kind of direct current induced-draught electric motor according to claim 1, it is characterized in that: the supporter (53) has along motor
The fixation convex body (53a) that shell (5) outer wall raises upward, and the air guiding member extended to ring-shaped step (51b) internal diameter, it is described
There are two the wind-guiding side wall (53b) of arc, two wind-guiding side walls (53b) are intersected close to the one end of impeller (4) to be constituted air guiding member tool
Tip.
3. a kind of direct current induced-draught electric motor according to claim 2, it is characterized in that: the impeller (4) has bottom plate (41)
With upper cover (42), the center of the upper cover (42) is formed with the air inlet (42a) to raise upward, the bottom plate (41) and upper cover
(42) it is fixed between rotating vane (43), the rotating vane (43) is being distributed in air inlet (42a) periphery.
4. a kind of direct current induced-draught electric motor according to claim 3, it is characterized in that: the ring-shaped step (51b) is formed with one
Connected 8 to 12 guide vanes (52) of body；Rotating vane (43) and the minimum separation distances of guide vane (52) are less than or equal to
0.4mm。
5. a kind of direct current induced-draught electric motor according to claim 4, it is characterized in that: the installation set (2) and shaft (1) it
Between be equipped with retainer (3), the retainer (3), which has, separates the interval bodies of each ball (11).
6. a kind of direct current induced-draught electric motor according to claim 1, it is characterized in that: between the first ball grooves of the twice (1a)
The first circular arc distance of center circle be greater than the second circular arc distance of center circle between the second ball grooves of twice (2a), and the second ball grooves of twice
The second circular arc center of circle (2c) of (2a) is located between the first circular arc center of circle (1c) of the first ball grooves of twice (1a).
7. a kind of direct current induced-draught electric motor according to claim 1, it is characterized in that: between the first ball grooves of the twice (1a)
The first circular arc distance of center circle be less than the second circular arc distance of center circle between the second ball grooves of twice (2a), and the first ball grooves of twice
The first circular arc center of circle (1c) of (1a) is located between the second circular arc center of circle (2c) of the second ball grooves of twice (2a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611197582.2A CN106787395B (en) | 2016-12-22 | 2016-12-22 | A kind of direct current induced-draught electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611197582.2A CN106787395B (en) | 2016-12-22 | 2016-12-22 | A kind of direct current induced-draught electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106787395A CN106787395A (en) | 2017-05-31 |
| CN106787395B true CN106787395B (en) | 2019-10-18 |
Family
ID=58899372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611197582.2A Active CN106787395B (en) | 2016-12-22 | 2016-12-22 | A kind of direct current induced-draught electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106787395B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107276315A (en) * | 2017-08-01 | 2017-10-20 | 安徽达来电机有限公司 | A kind of asynchronous ac motor |
| JP6708701B2 (en) * | 2018-06-13 | 2020-06-10 | ファナック株式会社 | Fringe with noise reduction structure and electric motor with the flinger |
| CN113555989B (en) * | 2021-07-13 | 2022-08-02 | 珠海格力电器股份有限公司 | Guiding device, motor and compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201771833U (en) * | 2010-08-23 | 2011-03-23 | 湖北飞剑泵业有限公司 | Water-proof coupling bearing for water pump |
| CN203933219U (en) * | 2014-06-12 | 2014-11-05 | 莱克电气股份有限公司 | A kind of end cap of motor of dust collector |
| CN105587773A (en) * | 2016-02-23 | 2016-05-18 | 安徽省宁国顺昌机械有限公司 | High-hardness bearing |
| CN206575273U (en) * | 2016-12-22 | 2017-10-20 | 宁波纽新克电机股份有限公司 | A kind of direct current induced-draught electric motor |
-
2016
- 2016-12-22 CN CN201611197582.2A patent/CN106787395B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201771833U (en) * | 2010-08-23 | 2011-03-23 | 湖北飞剑泵业有限公司 | Water-proof coupling bearing for water pump |
| CN203933219U (en) * | 2014-06-12 | 2014-11-05 | 莱克电气股份有限公司 | A kind of end cap of motor of dust collector |
| CN105587773A (en) * | 2016-02-23 | 2016-05-18 | 安徽省宁国顺昌机械有限公司 | High-hardness bearing |
| CN206575273U (en) * | 2016-12-22 | 2017-10-20 | 宁波纽新克电机股份有限公司 | A kind of direct current induced-draught electric motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106787395A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106787395B (en) | A kind of direct current induced-draught electric motor | |
| AU2016317805B2 (en) | Suction unit | |
| US20090233780A1 (en) | Separator with direct drive | |
| CN102782333A (en) | Centrifugal blower assembly | |
| CN206575273U (en) | A kind of direct current induced-draught electric motor | |
| KR102330551B1 (en) | Vacuum suntion unit | |
| US9568020B2 (en) | Blower | |
| US20180180063A1 (en) | Axial flow fan | |
| JP2009225554A (en) | Engine-driven power generator | |
| JP6507723B2 (en) | Axial fan and fan unit | |
| US10851792B2 (en) | Diagonal fan | |
| CN109477496B (en) | Electric blower and electric equipment | |
| CN108350899A (en) | Air-supply arrangement and dust catcher | |
| CN103307030A (en) | Centrifugal fan | |
| CN206211737U (en) | A kind of Miniature digital direct current generator | |
| US7478992B2 (en) | Heat-dissipating device | |
| CN106374671B (en) | A kind of rotor assembly of direct current generator | |
| CN106411026B (en) | A kind of Miniature digital direct current generator | |
| CN206211734U (en) | A kind of DC micromotor | |
| US11626772B2 (en) | Suction motor and vacuum cleaner having same | |
| EP3663589B1 (en) | Electric blower, vacuum cleaner, and hand drying device | |
| CN106340994B (en) | A kind of miniature DC motor | |
| WO2018193530A1 (en) | Electric blower, vacuum cleaner, and hand drying apparatus | |
| CN206481170U (en) | A kind of rotor assembly of direct current generator | |
| JP2020073802A (en) | Electric blower and electric appliance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315100 Zhejiang city of Ningbo province Yinzhou District Jingu Road No. 219 Patentee after: Ningbo Newark Electric Co., Ltd Address before: 315100 Zhejiang city of Ningbo province Yinzhou District Jingu Road No. 219 Patentee before: Ningbo new G motor Limited by Share Ltd |