CN207184202U - A kind of ultrahigh speed three-phase axial fan - Google Patents
A kind of ultrahigh speed three-phase axial fan Download PDFInfo
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- CN207184202U CN207184202U CN201721207467.9U CN201721207467U CN207184202U CN 207184202 U CN207184202 U CN 207184202U CN 201721207467 U CN201721207467 U CN 201721207467U CN 207184202 U CN207184202 U CN 207184202U
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- ball cover
- axial fan
- ultrahigh speed
- rotor assembly
- phase axial
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Abstract
The utility model discloses a kind of ultrahigh speed three-phase axial fan, it includes：Stator module, for internally connecting rotor assembly and the rotation of supporting rotor component；Rotor assembly, for producing torque and rotating generation turning moment；Impeller, for producing high velocity air, driven and rotated by rotor assembly；Stator module includes shell, and housing center has been arranged concentrically a retainer ring, and retainer ring inwall is fixedly connected with a layer line circle, and the both ends of retainer ring are respectively arranged with upper ball cover and lower ball cover；Rotor assembly includes being socketed on the rotary shaft of upper ball cover and lower ball cover, is socketed with magnetic core in the middle part of rotary shaft, the both ends of magnetic core are equipped with counterweight.The utility model has reasonable in design, and stability is good, and operational efficiency is high, small volume, the advantages that good heat dissipation.
Description
Technical field
The present invention relates to a kind of blower fan, specially a kind of ultrahigh speed three-phase axial fan.
Background technology
With lithium battery technology maturation apply, dust catcher from original bulky form to light and handy form, by Alternating Current Power Supply
Develop to direct current supply mode.Hand held cleaner, mobility is good, easy to carry, is not limited by power supply, light, operation
Flexibly.Therefore, high-end handheld dust catcher requires that motor volume is small, and high rotating speed produces big negative pressure.Will to the rotating speed of motor
Ask and can reach more than 50,000 turns.
Hand held cleaner motor is synchronous using brush direct current motor, DC brushless motor, Permanent-magnets mono-phase in the market
Motor drives, and is all to have teeth groove motor.Phase between permanent magnet and stator core when cogging torque is magneto winding no power
Torque caused by interaction, it is caused by the tangential component of Interaction Force as permanent magnet Yu armature tooth.Cogging torque meeting
Cause torque ripple, reduce the control characteristic and operational reliability of magneto servo drive system, influence the control essence of system
The problems such as spending, and causing vibration, noise.
Actually cogging torque is the magnetostatic energy rate of change in motor when rotor rotates.Due to quiet in permanent magnet and iron core
Magnetic energy, which varies less, to be ignored.Therefore the magnetostatic energy of motor is approximately equal to the magnetostatic energy in air gap.When iron core has teeth groove, magnetic field
Energy changes with the relative position of stator and rotor.And the direction to diminish towards magnetic energy product produces torque, i.e. cogging torque.
It is the tangential component of magnetic field of permanent magnet and teeth groove intermolecular forces in essence.Cogging torque always attempts to turn
Son is positioned at a certain position.Cogging torque causes the torque and velocity perturbation of magneto, motor is produced vibration and noise, when
Pulsating torque
Frequency it is consistent with armature supply resonant frequency when, resonance can be produced, will certainly amplify cogging torque vibration and
Noise, has a strong impact on the positioning precision and servo performance of motor, is especially influenceed in low speed even more serious.
In the case of superfast, the commutation loss of carbon brush is excessive, and carbon brush produces big commutation spark, superfast situation
Lower carbon brush abrasion accelerates, and Duration is all very low, and existing brush motor can not be transported safely under ultrahigh speed operating mode for a long time
OK.
Existing DC brushless motor shortcoming：It is big to rotate pulsation, cogging torque is big, and it is big that motor rotates noise；Existing permanent magnetism list
Be synchronised motor shortcoming：It is big to rotate pulsation, motor rotation noise is big, and efficiency is relatively low.
The content of the invention
In order to overcome above mentioned problem, the present invention is intended to provide a kind of pass through coreless coil winding, there is provided a kind of ultrahigh speed, fortune
Line efficiency is high, the ultrahigh speed three-phase axial fan of small volume.The blower fan can be applied on hand held cleaner, hair-dryer.
The technical scheme is that providing a kind of ultrahigh speed three-phase axial fan, it includes：
Stator module, for internally connecting rotor assembly and the rotation of supporting rotor component；
Rotor assembly, for producing torque and rotating for producing turning moment；
Impeller, the front end of rotary shaft is socketed on, is driven and rotated by rotor assembly, for producing high velocity air；
The stator module includes shell, and the housing center has been arranged concentrically a retainer ring, the retainer ring inwall
A layer line circle is fixedly connected with, the both ends of the retainer ring are respectively arranged with upper ball cover and lower ball cover；The rotor assembly
Rotary shaft including being socketed on the upper ball cover and the lower ball cover, magnetic core is socketed with the middle part of the rotary shaft, it is described
The both ends of magnetic core are equipped with counterweight.
Further, the impeller is interior located at the shell and is socketed on the front end of the rotary shaft.
Further, the coil is made up of iron-less core coil winding.
Further, the magnetic core is the permanent magnet for having S/N magnetic poles.
Further, bearing is provided with the upper ball cover and lower ball cover, the rotary sleeve is connected to two bearings
It is interior and can be with the bearing rotary.
Further, wherein corresponding one end of the upper ball cover and the lower ball cover stretches out formed with connection
Portion, it is corresponding in the connecting portion to offer screwed hole, M2 screws are connected with the screwed hole.
Further, the wind chamber formed with insertion between the shell and the retainer ring.
The beneficial effects of the invention are as follows：The ultrahigh speed three-phase axial fan of the present invention passes through stator module, rotor assembly
And impeller composition, the retainer ring that the outer Sales that stator module includes includes concentric are formed, on blower fan after electricity, air passes through outer Sales
The wind chamber penetrated between retainer ring forms axle stream, while takes away heat caused by coil electricity, so blower fan revolves in ultrahigh speed
The problem of not overheated when turning.The coil that the present invention is set is fixed in inside retainer ring, when on coil apply three phase sine electric current,
A rotating excitation field is formed, magnetic core produces turning moment, guiding magnetic core rotation, so as to rotor driven group in this rotating excitation field
Part and wheel rotation；Coil is iron-less core coil winding, by a coil braid into cage form, be the advantages of this blower fan
In light weight, small volume (iron-core-free), rotary inertia are greatly reduced and respond fast (slotless), energy conversion efficiency more than 70%
(no iron loss).The present invention has reasonable in design, and stability is good, and operational efficiency is high, small volume, the advantages that good heat dissipation.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the three-dimensional cross section structure schematic diagram of the present invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
As depicted in figs. 1 and 2, a kind of ultrahigh speed three-phase axial fan of the invention, it includes：Stator module 1, rotor
Component 4 and the impeller 5 to be linked with rotor assembly 4；
Stator module 1, for internally connecting rotor assembly 4 and supporting rotor component 4 rotates；
Rotor assembly 4, produce torque and rotate for producing turning moment；
Impeller 5, air-flow is produced for rotating, is arranged in stator pack, for ganged rotor component 4, and by rotor assembly 4
Drive rotation；
Stator module 1 includes shell 11, and the center of shell 11 has been arranged concentrically a retainer ring 12, and the inwall of retainer ring 12 is fixed
A layer line circle 13 is connected with, coil 13 is made up of the winding of iron-less core coil 13, and retainer ring 12 and shell 11 are arranged concentrically, and makes to turn
Sub-component 4 can be rotated smoothly, and the both ends of retainer ring 12 are respectively arranged with upper ball cover 14 and lower ball cover 15 is used for
Bearing 43 is provided with the connection of the rotary shaft 41 of rotor assembly 4, upper ball cover 14 and lower ball cover 15, rotary shaft 41 is socketed
It can rotate in two bearings 43 and with bearing 43, the middle part of rotary shaft 41 is socketed with magnetic core 6, and the both ends of magnetic core 6, which are equipped with, matches somebody with somebody
42 are weighed, magnetic core 6 is the permanent magnet for having S/N magnetic poles, applies three phase sine electric current on coil 13, forms a rotating excitation field,
Magnetic core 6 produces turning moment in this rotating excitation field, and guiding magnetic core 6 rotates, so as to rotor driven component and wheel rotation；Match somebody with somebody
The effect for weighing 42 is that axle maintains dynamic equilibrium when high speed rotates.
Impeller 5 is interior located at shell 11 and is socketed on the front end of rotary shaft 41.Upper ball cover 14 and lower ball cover 15 are wherein
Corresponding one end stretches out formed with connecting portion 2, corresponding in connecting portion 2 to offer screwed hole 21, is spun in screwed hole 21
There are M2 screws 22.Coil 13 is anchored in the outer Sales inwall of retainer ring 12, and rotary shaft 41 and magnetic core 6 are assembled, after the completion of two
Counterweight 42 passes through rotary shaft 41, is respectively implanted magnetic stamen both ends, and bearing 43 is respectively pressed into upper ball cover 14 and lower ball cover 15, upper axle
Hold lid 14 and lower ball cover 15 is individually placed to the both ends of rotary shaft 41, M2 screws 22 lock upper ball cover 14 and lower ball cover 15.
Wind chamber 3 formed with insertion between shell 11 and retainer ring 12, on blower fan after electricity, air passes through wind chamber 3 and forms axle
Stream, while take away coil 13 and be powered caused heat, so the problem of blower fan does not overheat when ultrahigh speed rotates.
The coil 13 that the present invention is set is fixed in inside retainer ring 12, applies three phase sine electric current on coil 13, is formed
One rotating excitation field, magnetic core 6 produce turning moment in this rotating excitation field, and guiding magnetic core 6 rotates, so as to rotor driven component
And wheel rotation；Coil 13 is the winding of iron-less core coil 13, and the cage being woven into by a coil 13 forms, and coil 13 is solid
Fixed connection, coil 13 do not rotate with magnetic core 6, and this set advantage is that in light weight, small volume (iron-core-free), rotary inertia significantly drop
It is low and respond fast (slotless), energy conversion efficiency more than 70% (no iron loss).The present invention has reasonable in design, stability
Good, operational efficiency is high, small volume, the advantages that good heat dissipation.
A kind of above example only present invention embodiment therein, its description is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. a kind of ultrahigh speed three-phase axial fan, it is characterised in that it includes：
Stator module, for internally connecting rotor assembly and the rotation of supporting rotor component；
Rotor assembly, for producing torque and rotating generation turning moment；
Impeller, the front end of rotary shaft is socketed on, is driven and rotated by rotor assembly, for producing high velocity air；
The stator module includes shell, and the housing center has been arranged concentrically a retainer ring, and the retainer ring inwall is fixed
A layer line circle is connected with, the both ends of the retainer ring are respectively arranged with upper ball cover and lower ball cover；The rotor assembly includes
The rotary shaft of the upper ball cover and the lower ball cover is socketed on, magnetic core, the magnetic core are socketed with the middle part of the rotary shaft
Both ends be equipped with counterweight.
A kind of 2. ultrahigh speed three-phase axial fan according to claim 1, it is characterised in that：The impeller is located at described
Shell is interior and is socketed on the front end of the rotary shaft.
A kind of 3. ultrahigh speed three-phase axial fan according to claim 1, it is characterised in that：The coil is iron-core-free
Coil windings are made.
A kind of 4. ultrahigh speed three-phase axial fan according to claim 1, it is characterised in that：The magnetic core is with S/
The permanent magnet of N magnetic poles.
A kind of 5. ultrahigh speed three-phase axial fan according to claim 1, it is characterised in that：The upper ball cover and under
Bearing is provided with bearing cap, the rotary sleeve is connected in two bearings and can be with the bearing rotary.
A kind of 6. ultrahigh speed three-phase axial fan according to claim 1, it is characterised in that：The upper ball cover and institute
The wherein corresponding one end for stating lower ball cover stretches out formed with connecting portion, corresponding in the connecting portion to offer screw thread
Hole, M2 screws are connected with the screwed hole.
A kind of 7. ultrahigh speed three-phase axial fan according to claim 1, it is characterised in that：The shell and described solid
Determine the wind chamber formed with insertion between ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721207467.9U CN207184202U (en) | 2017-09-20 | 2017-09-20 | A kind of ultrahigh speed three-phase axial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721207467.9U CN207184202U (en) | 2017-09-20 | 2017-09-20 | A kind of ultrahigh speed three-phase axial fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207184202U true CN207184202U (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721207467.9U Active CN207184202U (en) | 2017-09-20 | 2017-09-20 | A kind of ultrahigh speed three-phase axial fan |
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| CN (1) | CN207184202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425634A (en) * | 2017-09-20 | 2017-12-01 | 昆山雅力康电子科技有限公司 | A kind of ultrahigh speed three-phase axial fan |
-
2017
- 2017-09-20 CN CN201721207467.9U patent/CN207184202U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425634A (en) * | 2017-09-20 | 2017-12-01 | 昆山雅力康电子科技有限公司 | A kind of ultrahigh speed three-phase axial fan |
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