CN206530537U - A kind of brshless DC motor noise reduction impeller - Google Patents
A kind of brshless DC motor noise reduction impeller Download PDFInfo
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- CN206530537U CN206530537U CN201720050607.XU CN201720050607U CN206530537U CN 206530537 U CN206530537 U CN 206530537U CN 201720050607 U CN201720050607 U CN 201720050607U CN 206530537 U CN206530537 U CN 206530537U
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- blade
- brshless
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- noise reduction
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- 230000007704 transition Effects 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model provides a kind of brshless DC motor noise reduction impeller, including blade and wheel hub, and the blade is forward swept, and the blade includes blade tip, blade body, Ye Ren, blade root, air inlet and air outlet；It is characterized in that：The air outlet is provided with triangular sawtooth groove away from hub portion；The blade body is arc, thin edge thick middle, the blade body includes the first arc body and the second arc body, and transition arc body is additionally provided between first arc body and the second arc body, and the torsion angle between first arc body and the second arc body is 13 ° ± 2 °；Wide, both sides are narrow in the middle of the leaf sword connection blade tip, blade body and triangular sawtooth groove, the width of the leaf sword.
Description
Technical field
The utility model belongs to brushless electric machine noise reduction technology field, refers in particular to a kind of brshless DC motor noise reduction impeller.
Background technology
Brshless DC motor has in numerous areas widely to be applied, such as automobile, instrument, industrial industry control, automation and
Aero-Space etc..
How current brshless DC motor technical problem in the urgent need to address mainly reduces the noise during use
And vibrations.The aerodynamic noise of blower fan mainly due to gas unsteady flow, that is, air-flow disturbance, gas and gas
What the interphase interaction of body and gas and solid was produced.The aerodynamic noise of blower fan is mainly made up of three parts：Impulse noise
Sound, frictional noise and eddy current crack.Common noise reduction technology is that perforate is carried out to blade surface, guiding gutter etc. is set, but this
Structure also have lost the air output and aeroperformance of fan blade, without practical value.
Utility model content
To solve above-mentioned problem, the purpose of this utility model is to propose a kind of brshless DC motor noise reduction impeller, solves
The certainly noise during blade working, and do not influence ventilation.Concrete technical scheme is as follows：
A kind of brshless DC motor noise reduction impeller, including blade and wheel hub, the blade are forward swept, the leaf packet
Include blade tip, blade body, Ye Ren, blade root, air inlet and air outlet；It is characterized in that：The blade be forward swept, one into
Type；The blade includes blade tip, blade body, Ye Ren, blade root, air inlet and air outlet；The air outlet is away from hub portion
Provided with triangular sawtooth groove；The blade body be arc, thin edge thick middle, the blade body include the first arc body and
Second arc body, is additionally provided with transition arc body, first arc body and between first arc body and the second arc body
Torsion angle between two arc bodies is 13 ° ± 2 °.
Preferably, a kind of brshless DC motor noise reduction impeller according to claim 1, it is characterised in that：It is described
Wide, both sides are narrow in the middle of Ye Ren connections blade tip, blade body and triangular sawtooth groove, the width of the leaf sword；The blade quantity
For 3, the setting angle between blade root and wheel hub is 33 ° ± 2 °.
Preferably, the wheel hub includes motor shaft mounting hole and blower fan cup；The motor shaft mounting hole and blower fan cup
Between be additionally provided with trapezoidal fixed area, being provided with the blower fan cup on motor fixed disk, the motor fixed disk has screw and solid
Fixed column, for fixing motor；Sealed groove is additionally provided with the blower fan cup opening, the blower fan bottom of cup is provided with chamfering；
The blower fan cup bottom surface is provided with injection fixing hole, and the quantity of the injection fixing hole is 9.
Preferably, the wheel hub also adds the advance fixation of spring with motor shaft using interference, and motor shaft is inserted from wheel hub rear,
Fixed by the advance mode of close winding spring.
Preferably, the expanded angle of the blade tip is 49 ° ± 2 °, and the impeller diameter is D, and blade exhibition height is H, wherein
H:D=4.2:11.
Preferably, the section of the triangular sawtooth groove is equilateral triangle, and the sawtooth quantity is 6, the triangle
The shape serrated slot length of side is a, wherein a:H=3:42.
Preferably, the connected mode of the blade and wheel hub is but is not limited to injection moulding integrated molding, welding, screw and fixes.
The utility model compared with prior art, with advantages below：
A kind of brshless DC motor noise reduction impeller that the utility model is provided, by setting triangle to saw in blade afterbody
Tooth slot structure, and blade construction is optimized, blade can be effectively reduced on the premise of the air output of fan blade is ensured
Noise.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of brshless DC motor noise reduction impeller schematic three dimensional views.
Fig. 2 be the utility model proposes a kind of brshless DC motor noise reduction impeller top view.
Fig. 3 be the utility model proposes a kind of brshless DC motor noise reduction impeller upward view.
Fig. 4 is the enlarged drawing of a-quadrant in Fig. 2.
Fig. 5 is the top view of another embodiment proposed by the present invention.
Fig. 6 is the upward view of another embodiment proposed by the present invention.
Description of reference numerals：
1- blade tips, the grooves of 2- the 3rd, the grooves of 3- first, the grooves of 4- second, 5- blade roots, the arc bodies of 6- first, 7- transition arcs
Body, 8- triangular sawtooth grooves, 9- leaf swords, 10- injection fixing holes, 11- fan blade cups, 12- chamferings, 13- motor shaft mounting holes,
14- sealed grooves, 15- screws, 16- fixed columns, the planes of 17- first, the planes of 18- second, the arc bodies of 19- second, 20- is trapezoidal solid
Determine area.
Embodiment
Such as Fig. 1, shown in 2,3,4, a kind of brshless DC motor noise reduction impeller, including blade and wheel hub, the blade is
Forward swept, the blade includes blade tip 1, blade body, Ye Ren 9, blade root 5, air inlet and air outlet；It is characterized in that：It is described
Air inlet edge is sequentially provided with the first groove 3 and the second groove 4, and second groove 4 is connected with blade body, the blade tip 1
The 3rd groove 2 is additionally provided between air inlet；The air outlet is provided with triangular sawtooth groove 8, the air-out away from hub portion
Mouth is additionally provided with the first plane 17 and the second plane 18, and the plane 18 of the first plane 17 and second is extended to three from blade root 5 respectively
Angular serrated slot 8；The blade body is arc, and thin edge thick middle, the blade body includes the first arc body 6 and second
Be additionally provided with transition arc body 7 between arc body 19, the arc body 19 of the first arc body 6 and second, first arc body 6 with
Torsion angle between second arc body 19 is 13 °；The connection of leaf sword 9 blade tip 1, blade body and triangular sawtooth groove 8, it is described
The characteristics of width of leaf sword 1 has middle width, both sides are narrow.
Preferably, the blade quantity is 3, and the setting angle between blade root 5 and wheel hub is 33 °；The wheel hub includes
Motor shaft mounting hole 13 and blower fan cup 11；Trapezoidal fixed area is additionally provided between the motor shaft mounting hole 13 and blower fan cup 11
20, the blower fan cup 11, which is provided with motor fixed disk, the motor fixed disk, screw 15 and fixed column 16, for fixed electricity
Sealed groove 14 is additionally provided with machine, the opening of blower fan cup 11, the bottom of blower fan cup 11 is provided with chamfering 12, the blower fan
Cup bottom surface is provided with injection fixing hole 10, and the quantity of the injection fixing hole is 9.
Preferably, the expanded angle of the blade tip 1 is 49 °, and the impeller diameter is D, and blade exhibition height is H, wherein H:D
=4.2:11.
Preferably, the section of the triangular sawtooth groove 8 is equilateral triangle, and the sawtooth quantity is 6, the triangle
The shape serrated slot length of side is a, wherein a:H=3:42.
Preferably, the connected mode of the blade and wheel hub is formed in one.
Embodiment 2
As it can be seen in figures 5 and 6, a kind of brshless DC motor noise reduction impeller, the present embodiment and the difference of embodiment 1 are：
The wheel hub adds the advance fixation of spring with motor shaft using interference, and motor shaft is inserted from wheel hub rear, advance by close winding spring
Mode is fixed.
The utility model preferred embodiment is explained in detail above in conjunction with accompanying drawing, but the utility model is not limited to
Above-mentioned embodiment, in the knowledge that those of ordinary skill in the art possess, can also not depart from the utility model
Made a variety of changes on the premise of objective.
Many other changes and remodeling can be made by not departing from spirit and scope of the present utility model.It should be appreciated that this reality
Specific embodiment is not limited to new, scope of the present utility model is defined by the following claims.
Claims (7)
1. a kind of brshless DC motor noise reduction impeller, including blade and wheel hub, it is characterised in that：The blade is forward swept,
It is integrally formed；The blade includes blade tip, blade body, Ye Ren, blade root, air inlet and air outlet；The air outlet is away from wheel
Hub portion is provided with triangular sawtooth groove；The blade body is arc, and thin edge thick middle, the blade body includes the first arc
Body and the second arc body, are additionally provided with transition arc body, first arc between first arc body and the second arc body
Torsion angle between body and the second arc body is 13 ° ± 2 °.
2. a kind of brshless DC motor noise reduction impeller according to claim 1, it is characterised in that：The leaf sword connects leaf
Wide, both sides are narrow in the middle of point, blade body and air outlet, the width of the leaf sword；The blade quantity is 3, blade root and wheel hub
Between setting angle be 33 ° ± 2 °.
3. a kind of brshless DC motor noise reduction impeller according to claim 1, it is characterised in that：The wheel hub includes electricity
Arbor mounting hole and blower fan cup；Trapezoidal fixed area, the blower fan are additionally provided between the motor shaft mounting hole and blower fan cup
Being provided with cup on motor fixed disk, the motor fixed disk has screw and fixed column, for fixing motor；The blower fan cup
Sealed groove is additionally provided with opening, the blower fan bottom of cup is provided with chamfering；The blower fan cup bottom surface is provided with injection fixing hole,
The quantity of the injection fixing hole is 9.
4. a kind of brshless DC motor noise reduction impeller according to claim 1, it is characterised in that：The wheel hub and motor
Axle also adds the advance fixation of spring using interference, and motor shaft is inserted from wheel hub rear, fixed by the advance mode of close winding spring.
5. a kind of brshless DC motor noise reduction impeller according to claim 1, it is characterised in that：The expansion of the blade tip
Angle is 49 ° ± 2 °, and the impeller diameter is D, and blade exhibition height is H, wherein H:D=4.2:11.
6. a kind of brshless DC motor noise reduction impeller according to claim 1, it is characterised in that：The triangular sawtooth
The section of groove is equilateral triangle, and the sawtooth quantity is 6, a length of a of triangular sawtooth trough rim, wherein a:H=3:42.
7. a kind of brshless DC motor noise reduction impeller according to claim 1, it is characterised in that：The blade and wheel hub
Connected mode be that injection moulding integrated molding or welding or screw are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720050607.XU CN206530537U (en) | 2017-01-16 | 2017-01-16 | A kind of brshless DC motor noise reduction impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720050607.XU CN206530537U (en) | 2017-01-16 | 2017-01-16 | A kind of brshless DC motor noise reduction impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530537U true CN206530537U (en) | 2017-09-29 |
Family
ID=59920532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720050607.XU Active CN206530537U (en) | 2017-01-16 | 2017-01-16 | A kind of brshless DC motor noise reduction impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206530537U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11187083B2 (en) | 2019-05-07 | 2021-11-30 | Carrier Corporation | HVAC fan |
| USD980965S1 (en) | 2019-05-07 | 2023-03-14 | Carrier Corporation | Leading edge of a fan blade |
-
2017
- 2017-01-16 CN CN201720050607.XU patent/CN206530537U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11187083B2 (en) | 2019-05-07 | 2021-11-30 | Carrier Corporation | HVAC fan |
| USD980965S1 (en) | 2019-05-07 | 2023-03-14 | Carrier Corporation | Leading edge of a fan blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A noise reducing impeller for brushless DC motors Granted publication date: 20170929 Pledgee: Bank of China Limited Zhenjiang Runzhou Branch Pledgor: JIANGSU WILLTRON TECH CO.,LTD. Registration number: Y2024980014035 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |