CN105099108B - Fan electromotor and fan - Google Patents
Fan electromotor and fan Download PDFInfo
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- CN105099108B CN105099108B CN201410219836.0A CN201410219836A CN105099108B CN 105099108 B CN105099108 B CN 105099108B CN 201410219836 A CN201410219836 A CN 201410219836A CN 105099108 B CN105099108 B CN 105099108B
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Abstract
A kind of fan electromotor of the present invention is included stator assembly and rotor assembly, stator module includes the stator core that volume sets winding, stator module is rotationally connected with rotor axis of electric, rotor assembly includes internal layer magnetic sheet and outer layer magnetic sheet, internal layer magnetic sheet and outer layer magnetic sheet are coaxial, and outer layer magnetic sheet is enclosed on the outside of internal layer magnetic sheet, internal layer magnetic sheet includes multiple interior magnetic stripes, per two adjacent interior magnetic stripe opposite polarities, outer layer magnetic sheet includes multiple outer magnetic stripes, per two adjacent outer magnetic stripe opposite polarities, homopolarity is relative in radial directions with internal layer magnetic sheet for outer layer magnetic sheet, stator core is located at interior, between outer layer magnetic sheet, internal layer magnetic sheet is with the magnetic line of force caused by outer layer magnetic sheet vertically into stator core, and the magnetic line of force in stator core forms tangential magnetic field.During fan electromotor of the present invention rotation, stator core will not cutting magnetic line, the magnetic line of force will not produce eddy-current loss caused by stator core, so that the numerical value of the stator core iron loss declines.The present invention also provides a kind of fan.
Description
Technical field
The present invention relates to fan art, more particularly to a kind of birotor fan and fan electromotor.
Background technology
Fan is a kind of device for being used in fan apparatus convert electrical energy into mechanical energy with motor, and it is mainly by a use
Formed with producing the electromagnet winding in magnetic field or the stator winding of distribution and a rotating armature or rotor.Motor uses the power on
Coil in magnetic field the phenomenon of Forced rotation and it is manufactured.Fan has been used in each electronic product, with each electron-like
The compact development trend of product, the requirement of the performance of volume and fan to fan are continuously increased.Therefore, how to design
A kind of energy loss is small, the high fan electromotor of operating efficiency, the problem persistently studied for industry.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of fan electromotor, small with energy loss, operating efficiency
The advantages of high.To achieve these goals, embodiment of the present invention provides following technical scheme：
On the one hand, the present invention provides a kind of fan electromotor, including stator assembly and rotor assembly, the stator module includes
Volume sets the stator core of winding, and the rotor assembly includes rotor axis of electric, and the stator module is rotationally connected with the motor
Armature spindle, the rotor assembly also include tubular internal layer magnetic sheet and outer layer magnetic sheet, the internal layer magnetic sheet and the outer layer
Magnetic sheet is coaxial, and the outer layer magnetic sheet is set in outside the internal layer magnetic sheet, and the rotor axis of electric is located at the internal layer magnetic sheet
Axle center at, the internal layer magnetic sheet includes multiple axially extending and circumferentially distributed interior magnetic stripe, it is described per adjacent two in
The opposite polarity of magnetic stripe, the outer layer magnetic sheet include multiple axially extending and circumferentially distributed outer magnetic stripe, per adjacent two
The outer magnetic stripe opposite polarity, homopolarity is relative in radial directions with the internal layer magnetic sheet for the outer layer magnetic sheet, the stator iron
Core is located between the internal layer magnetic sheet and the outer layer magnetic sheet, and the stator core is in straight-tube shape, the internal layer magnetic sheet and institute
The magnetic line of force caused by outer layer magnetic sheet is stated vertically into the stator core, and the magnetic line of force in the stator core forms edge
The tangential magnetic field of the stator core circumferentially extending.
Wherein, the rotor assembly also includes the outer rotor set being coaxially disposed and internal rotor set, the outer rotor set are arranged
In the outside of internal rotor set, outer rotor set includes the first mounting cylinder, the first fixing end and the first openend, and described the
One fixing end is located at an end face of first mounting cylinder, and first openend is located at another of first mounting cylinder
End face, the internal rotor set include the second mounting cylinder, the second fixing end and the second openend, and second fixing end is located at described
One end face of the second mounting cylinder, second openend are located at another end face of second mounting cylinder, and described second is solid
Fixed end is fixedly connected on first fixing end, and the outer layer magnetic sheet is fixed on the inner surface of first mounting cylinder, described interior
Layer magnetic sheet is fixed on the outer surface of second mounting cylinder, and one end of the rotor axis of electric is fixedly attached to described first and fixed
End, the other end of the rotor axis of electric are located at second openend of internal rotor set.
Wherein, the rotor assembly also includes a pair of retainer rings, and the Fixing shrink ring is located at the periphery of internal rotor set
And for the both ends of the internal layer magnetic sheet to be fixed to the second installation tube outer surface of the internal rotor set.
Wherein, the multiple outer magnetic stripe is interconnected to form the outer layer magnetic sheet independently of one another.
Wherein, the outer layer magnetic sheet is integral type structure.
Wherein, the stator core includes multiple ring-shaped silicon steel sheets, and the multiple silicon steel sheet mutually laminates so that described fixed
Sub- iron core is in straight tube shape, and circumferencial direction of the winding along the stator core is distributed, and is wound in the stator core
Surfaces externally and internally and both ends of the surface, magnetic direction caused by the winding are the tangential direction of the ring-shaped silicon steel sheet.
Wherein, the stator module also includes being individually fixed in the both ends of the surface of the stator core and upper end in a ring
Plate and bottom plate, the upper head plate set the upper winding slot of multiple spaced settings, and the bottom plate sets multiple spaced set
The lower winding slot put, the winding for winding the stator core pass through the multiple upper winding slot and the multiple lower coiling
Groove.
Wherein, the stator module also includes iron core base and stator seat, the iron core base in a ring, the bottom plate and institute
State iron core base to be fixedly connected, the stator seat includes fixed charge method end plate and connecting cylinder, and the fixed charge method end plate is based in the connecting cylinder
One end periphery, the iron core base is sheathed on the periphery of the connecting cylinder together with the stator core for winding the winding,
And the iron core base is fixedly attached to the fixed charge method end plate, the internal layer magnetic sheet is contained in the stator core and the connecting cylinder
Between, the rotor axis of electric stretches into the connecting cylinder and is rotationally connected with the connecting cylinder.
Wherein, the fan electromotor is also included located at the bearing group between the rotor axis of electric and the stator module
Part, be rotatablely connected the stator module by the bearing assembly includes same to the rotor axis of electric, the bearing assembly
Axle isometric internal magnetic ring and outer magnetic ring, the internal magnetic ring are fixedly attached to the rotor axis of electric, and the outer magnetic ring is fixedly connected
To the stator module, and the outer magnetic ring is with being stacked and axially aligning inside and outside the internal magnetic ring, the internal magnetic ring and institute
State and be provided with the working clearance between outer magnetic ring.
Wherein, the bearing assembly also includes fixed cover and locating ring, and the fixed cover is sheathed on the rotor axis of electric
And be fixedly connected with the rotor axis of electric, one end of the fixed cover projects baffle ring, the internal magnetic ring set along radial direction
It is fixedly connected located at the fixed cover and with the fixed cover, the locating ring is sheathed on the remote baffle ring of the fixed cover
One end, the locating ring and the baffle ring are respectively limited by the both ends of the internal magnetic ring.
Wherein, the bearing assembly also includes a pair of mechanical bearings, described that the rotor is sheathed on to mechanical bearing
Axle, and it is located at the both sides of the fixed cover respectively, it is described that the rotor axis of electric and the stator pack are installed on to mechanical bearing
Between part, to realize rotating shaft connection and the radial positioning between the rotor axis of electric and the stator module.
Wherein, the bearing assembly also includes a pair of bearings set and a pair of elastic washers, described that bearing holder (housing, cover) is respectively arranged on
It is described between mechanical bearing and the stator module, it is described elastic washer is located in respectively it is described to bearing holder (housing, cover) with it is described right
Between mechanical bearing.
Wherein, the stator module also includes stator seat, and the stator seat includes fixed charge method end plate and connecting cylinder, the fixation
End plate is based in the periphery of one end of the connecting cylinder, and the stator core that volume sets the winding is sheathed on outside the connecting cylinder
Enclosing and be fixed on the fixed charge method end plate, the rotor axis of electric is contained in inside the connecting cylinder together with the bearing assembly, and
Described that bearing holder (housing, cover) is fixedly connected with the connecting cylinder inwall, one of them described bearing holder (housing, cover) is located at the close institute of the connecting cylinder
One end of fixed charge method end plate is stated, another described bearing holder (housing, cover) is located at one end away from the fixed charge method end plate of the connecting cylinder.
Wherein, the bearing holder (housing, cover) close to one end of the fixed charge method end plate positioned at the connecting cylinder is with the connecting cylinder
Integral structure；The bearing holder (housing, cover) positioned at the opening of the connecting cylinder is removably fixed on the connecting cylinder.
Wherein, the quantity of the internal magnetic ring is multiple and coaxially overlapped, and the quantity of the outer magnetic ring is multiple and same
Axle overlaps, and each internal magnetic ring and each outer magnetic ring are axial charging, the both ends of the surface of same internal magnetic ring
Opposite polarity, the polarity of the both ends of the surface of same outer magnetic ring is also on the contrary, adjacent two internal magnetic rings are bonded to each other
End face polarity is identical, and the end face polarity being bonded to each other of adjacent two outer magnetic rings is also identical, in same radial direction
The opposite polarity of the upper corresponding internal magnetic ring and the outer magnetic ring.
On the other hand, the present invention also provides a kind of fan, including blade and the described fan for driving the blade
Motor, the blade are set in the periphery of the rotor assembly of the fan electromotor.
Because the fan electromotor of the present invention includes birotor, i.e. internal layer magnetic sheet forms inner and outer Rotator respectively with outer layer magnetic sheet,
The magnetic line of force caused by the internal layer magnetic sheet and the outer layer magnetic sheet is vertically into the stator core, to produce effective torque,
And the magnetic line of force in the stator core forms tangential magnetic field, because tangential magnetic field is consistent with fan electromotor direction of rotation,
That is fan electromotor rotate when, stator core will not cutting magnetic line, the magnetic line of force will not produce whirlpool caused by stator core
Stream loss, so that the numerical value of the stator core iron loss declines, so that fan electromotor energy loss reduces, improve fan
The operating efficiency of motor..
Brief description of the drawings
In order to illustrate more clearly of technical scheme, the required accompanying drawing used in embodiment will be made below
Simply introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained such as these accompanying drawings.
Fig. 1 is the profile of the fan in one embodiment of the present invention.
Fig. 2 is the three-dimensional exploded view of the fan in one embodiment of the present invention.
Fig. 3 is the three-dimensional assembly diagram of the fan in one embodiment of the present invention.
Fig. 4 is the three-dimensional assembly diagram of the rotor assembly of the fan electromotor in one embodiment of the present invention.
Fig. 5 is the three-dimensional exploded view of the rotor assembly of the fan electromotor in one embodiment of the present invention.
Fig. 6 is stator core, winding, upper and lower end plate and the iron core base of the fan electromotor in one embodiment of the present invention
Three-dimensional exploded view.
Fig. 7 is the schematic perspective view of the stator seat in the stator module of the fan electromotor in one embodiment of the present invention.
Fig. 8 is the structural representation of the interior outer magnetic ring in the bearing assembly of the fan electromotor in one embodiment of the present invention
Figure.
Fig. 9 is single internal magnetic ring or outer magnetic ring in the bearing assembly of the fan electromotor in one embodiment of the present invention
Interface schematic diagram.
Figure 10 is between the internal layer magnetic sheet, outer layer magnetic sheet and stator core of the fan electromotor in one embodiment of the present invention
Form the schematic diagram in magnetic field.
Figure 11 be the fan electromotor in one embodiment of the present invention winding on stator core a kind of canoe
Schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is carried out clear
Chu, it is fully described by.
Fig. 1, Fig. 2 and Fig. 3 are referred to, the present invention relates to a kind of fan 100 and fan electromotor 200, fan 100 includes blade
102 and for driving the fan electromotor 200 of the blade 102.
Fan electromotor 200 includes stator module 10 and rotor assembly 20, and the stator module 10 includes volume and sets winding 14
Stator core 12, the rotor assembly 20 include rotor axis of electric 22, and the stator module 10 is rotationally connected with the motor and turned
Sub- axle 22.The rotor assembly 20 also includes tubular internal layer magnetic sheet 24 and outer layer magnetic sheet 26, the internal layer magnetic sheet 24 with
The outer layer magnetic sheet 26 is coaxially disposed, and the outer layer magnetic sheet 26 is set in outside the internal layer magnetic sheet 24, the rotor
Axle 22 is located at the axle center of the internal layer magnetic sheet 24 and the outer layer magnetic sheet 26, rotor axis of electric 22, internal layer magnetic sheet 24 and outer layer
Magnetic sheet 26 is fixedly connected, and to rotate jointly, internal layer magnetic sheet 24 forms dual-rotor structure with outer layer magnetic sheet 26.The internal layer magnetic sheet 24
It is described outer per two adjacent interior opposite polarities of magnetic stripe 242 including multiple axially extending and circumferentially distributed interior magnetic stripe 242
Layer magnetic sheet 26 includes multiple axially extending and circumferentially distributed outer magnetic stripe 262, per two adjacent outer polarity phases of magnetic stripe 262
Instead, homopolarity is relative in radial directions with the internal layer magnetic sheet 24 for the outer layer magnetic sheet 26, as shown in Figure 10, such as an interior magnetic
The polarity of bar 242 is N poles, and the polarity with the outer magnetic stripe 262 of interior magnetic stripe 242 that this is N poles on same Radius is also N poles.
The direction of the interior magnetic stripe 242 and the magnetic line of force caused by the outer magnetic stripe 262 extends in a radial direction.Interior magnetic stripe 242 with
The quantity of outer magnetic stripe 262 is even number.
Referring to Fig. 10, the stator core 12 is located between the internal layer magnetic sheet 24 and the outer layer magnetic sheet 26, and institute
It is in straight-tube shape to state stator core 12, and the internal layer magnetic sheet 24 is with the magnetic line of force caused by the outer layer magnetic sheet 26 vertically into described
Stator core 12, and the magnetic line of force in the stator core 12 is formed along the tangential of the circumferentially extending of the stator core 12
Magnetic field.Specifically, the magnetic line of force for the outer magnetic stripe 262 that the polarity diametrically answered is the interior magnetic stripe 242 of N poles and polarity is N poles
Direction is vertically into stator core 12, and into after stator core 12, the magnetic line of force is circumferentially in the stator core 12
It is interior to extend towards the interior magnetic stripe 242 that adjacent polarity is S poles and outer magnetic stripe 262 that polarity is S poles, then the magnetic line of force respectively along
Radial direction extends to the interior magnetic stripe 242 that polarity is S poles and the outer magnetic stripe 262 that polarity is S poles from stator core 12.
When the winding 14 on stator core 12 is powered, the air gap between the stator module 10 and the rotor assembly 20
Rotating excitation field is produced, magnetic force line cutting rotating excitation field caused by the rotor assembly 20 produces induced electromotive force and induced electricity
Stream, induced-current produces electromagnetic force with rotating excitation field interaction, so that the rotor assembly 20 rotates.The leaf
Piece 102 is set in the periphery of the rotor assembly 20 of the fan electromotor 200, while rotation with rotor assembly 20, with band movable vane
Piece 102 rotates.
Because the fan electromotor 200 of the present invention includes birotor, i.e., internal layer magnetic sheet 24 and outer layer magnetic sheet 26 is formed respectively it is interior,
Outer rotor, the magnetic line of force caused by the internal layer magnetic sheet 24 and the outer layer magnetic sheet 26 vertically into the stator core 12, with
Effective torque is produced, and the magnetic line of force in the stator core 12 forms tangential magnetic field, due to tangential magnetic field and fan electromotor
200 direction of rotation are consistent, that is to say, that fan electromotor 200 rotate when, stator core 12 will not cutting magnetic line, stator core 12
Electric current would not be produced, i.e. stator core 12 will not produce eddy-current loss, so that under the numerical value of the iron loss of the stator core 12
Drop.
Installation and location structure of the internal layer magnetic sheet 24 with outer layer magnetic sheet 26 are specific as follows, please refer to Fig. 4 and figure
5。
The rotor assembly 20 also includes being coaxially disposed and mutually nested outer rotor set 25 and internal rotor set 23, described outer
Rotor set 25 includes the first mounting cylinder 252, the first fixing end 254 and the first openend 256, and first fixing end 254 is located at
One end face of first mounting cylinder 252, first openend 256 are located at another end of first mounting cylinder 252
Face, outer rotor set 25 is similar to the barrel shaped structure of one end open, and specifically, the first fixing end 254 is shaped in the first installation
One end of cylinder 252, and the first mounting cylinder 252 is in drum-shaped structure, the first fixing end 254 is in disk form.The internal rotor set 23
Including the second mounting cylinder 232, the second fixing end 234 and the second openend 236, second fixing end 234 is located at described second
One end face of mounting cylinder 232, second openend 236 are located at another end face of second mounting cylinder 232, it is specific and
Speech, the second fixing end 234 is in annular and the center from one end of the second mounting cylinder 232 radially toward the second mounting cylinder 232
Extension, the second mounting cylinder 232 is in drum-shaped structure.Second fixing end 234 is fixedly connected on first fixing end 254,
The outer layer magnetic sheet 26 is fixed on the inner surface of first mounting cylinder 252, and the internal layer magnetic sheet 24 is fixed on second peace
The outer surface of fitted tube 232, one end of the rotor axis of electric 22 are fixedly attached at the center of first fixing end 254, institute
The other end for stating rotor axis of electric 22 stretches out second openend 236.In present embodiment, by it is inside and outside it is mutually nested in
Rotor set 23 and outer rotor set 25 fix internal layer magnetic sheet 24 and outer layer magnetic sheet 26 as carrier, can be according to fan electromotor 200
The size of setting internal layer magnetic sheet 24 and outer layer magnetic sheet 26 is needed, the material of inner and outer Rotator set 25 is permeability magnetic material, can select steel
Material, the inner and outer Rotator set 25 can increase magnetosonic intensity, reduce leakage field., can also be by inside and outside layer in other embodiment
Magnetic sheet 24,26 structures can also make the magnet ring of whole cylindrical shape, and multiple magnetic poles, phase are processed as respectively on the circumferencial direction of magnet ring
Adjacent two magnetic poles can be thus omitted on the contrary, inside and outside layer magnetic sheet 24,26 directly is fixedly connected on into rotor axis of electric 22
Inner and outer Rotator covers 23,25 structure design.
In the present embodiment, the fixed form between internal layer magnetic sheet 24 and internal rotor set 23 is：The rotor assembly 20 also wraps
A pair of retainer rings 28 are included, the retainer ring 28 is sheathed on the periphery of the internal rotor set 23 and is used for the internal layer magnetic sheet 24
Both ends are fixed to the internal rotor and cover 23 outer surfaces, and the both ends of internal layer magnetic sheet 24 are fixed to internal rotor set by a pair of retainer rings 28
23, that is, the fixation of internal layer magnetic sheet 24 is realized, can be in retainer ring 28 and internal layer magnetic sheet 24 and interior turn in order to strengthen fixed effect
Standby glue between sub-set 23.In other embodiments, internal layer magnetic sheet 24 directly can also be fixed to internal rotor by way of viscose glue
Set 23, cancel the structure of retainer ring 28.
The fixed form that outer layer magnetic sheet 26 and outer rotor are covered between 25 inner surfaces can be fixed by way of viscose glue, also may be used
By by outer layer magnetic sheet 26 and outer rotor set 25 it is close-fitting in a manner of, i.e., the diameter of outer layer magnetic sheet 26 slightly larger than outer rotor set 25
Internal diameter, by outer layer magnetic sheet 26 be pressed into outer rotor set 25 in so that the two is seamlessly brought into close contact.
In a kind of embodiment, the multiple outer magnetic stripe 262 is interconnected to form the outer layer magnetic sheet 26 independently of one another, that
The manufacturing cost of this independent outer magnetic stripe 262 is high in machining efficiency than relatively low, outer magnetic stripe 262 first can be connected into outer layer magnetic sheet
26, then outer layer magnetic sheet 26 is fixed to outer rotor set 25, outer magnetic stripe 262 directly can also be fixed to table in outer rotor set 25
Face, cover 25 inner surfaces in outer rotor and form outer layer magnetic sheet 26.Specific connected mode can be connected by way of viscose glue, also may be used
In a manner of by other physical connections, such as one fixed mount of increase, fixed mount include the groove of the outer magnetic stripe 262 of multiple collectings
Position, outer magnetic stripe 262 is caught in inside corresponding groove position, to form outer layer magnetic sheet 26.
In another embodiment, the outer layer magnetic sheet 26 is integral type structure, is formed by way of magnetizing described more
Individual outer magnetic stripe 262, the Stability Analysis of Structures of the outer layer magnetic sheet 26 of integral type, is easily installed.
Please refer to Fig. 6, the stator core 12 includes multiple ring-shaped silicon steel sheets, and the multiple silicon steel sheet is mutually folded
Pressure so that the stator core 12 is in straight tube shape, and the inner surface of the stator core 12 and outer surface are the smooth face of cylinder,
The winding 14 along the stator core 12 circumferencial direction distribution, and be wound in the stator core 12 surfaces externally and internally and
Both ends of the surface, magnetic direction caused by the winding 14 be the ring-shaped silicon steel sheet tangential direction, ring-shaped silicon steel sheet it is tangential
Direction is just perpendicular to the direction of the radius of annular silicon silicon steel sheet, is exactly the extension of the internal circumferential of stator core 12 as shown in Figure 10
Tangential magnetic field direction.Because stator core 12 uses silicon steel sheet, silicon steel sheet will not be magnetized, and not have remaining remanent magnetism, because
This can suppress the surface eddy of stator core 12 and be lost, and the magnetic line of force inside stator core 12 and the side of rotation of fan electromotor 200
To consistent, eddy-current loss is not produced.So the iron loss of fan electromotor 200 of the present invention compared with conventional motors, numerically have big
Width declines, and is to axially extend in the winding 14 (i.e. coil) of the surfaces externally and internally of stator core 12, in fan electromotor 200
During motion, the equal perpendicular cuts magnetic line of force of winding 14 of the surfaces externally and internally of stator core 12, the magnetic field force induced all tangent lines of institute
Direction, it is completely used for producing the torque of winding 14, without other component.
Please refer to Figure 11, in a kind of embodiment, the winding 14 is three-phase windings, including U phase windings, V phases around
Group and W phase windings, and circumference of the three along the stator core 12 is uniformly distributed by 120 degree of electrical angles.The U phase windings, institute
State V phase windings and the W phase windings form three-phase absolute coil winding, or the U phase windings, the V phase windings and the W
The midpoint of phase winding is connected to form Y type connected modes, and wye connection refers to that three-phase windings respectively have a common port to connect together, separately
Outer one end connection control circuit, similar " Y " word.
The stator module 10 also includes being individually fixed in the both ends of the surface of the stator core 12 and upper end in a ring
Plate 15 and bottom plate 16, the upper head plate 15 set the upper winding slot 152 of multiple spaced settings, and the bottom plate 16 sets multiple
The lower winding slot 162 of spaced setting, the winding 14 for winding the stator core 12 pass through the multiple upper winding slot
152 and the multiple lower winding slot 162.During making stator module 10, first upper head plate 15 and bottom plate 16 are fixed to
Two end faces of stator core 12, then the winding 14 is wound, upper winding slot 152 is consistent with the lower quantity of winding slot 162 and keeps
One-to-one relation, projection phase of the upper winding slot 152 with lower winding slot 162 in the plane perpendicular to the stator core 12
Mutually overlap, during winding the winding 14, between being wound by upper winding slot 152 and lower winding slot 162 progress winding 14
Every and positioning.
Please refer to Figure 11, (a) figure in Figure 11 show the signal that U phase windings are only wound with stator core 12
Scheme, (b) figure in Figure 11 show the U phase windings, the V phase windings and the W phase windings and is distributed on stator core 12
Schematic diagram.Specifically, the tool of the U phase windings, the V phase windings and the W phase windings on the stator core 12
The canoe of body is：First U phase windings are wrapped on stator core 12, surfaces externally and internally of the U phase windings in stator core 12
Coil in axial direction extends, and is respectively wound around winding slot 152 in the both ends of stator core 12, the coil of U phase windings
Be separated by two upper and lower winding slots 152,162 in lower winding slot 162, and between the coil of adjacent U phase windings, i.e. U phases around
Group is wound in a manner of across two grooves.The canoe of the V phase windings and the W phase windings is identical with the U phase windings, and
Wound in a manner of across two grooves, the coil of V phase windings and the coil of W phase windings are sequentially arranged on the coil of adjacent U phase windings
Between.It is as follows to illustrate Winding theory of the winding of the present invention in upper winding slot 152, upper winding slot 152 is sequentially numbered is
First groove, the second groove, the 3rd groove ..., after U phase windings wind the first groove, across second and third groove, then continuous winding the 4th
Groove, the 7th groove, the tenth groove ..., V phase windings are wound since the second groove, across the three, the 4th grooves, then continuous winding the 5th
Groove, the 8th groove, the 11st groove ..., W phase windings are wound since the 3rd groove, across the four, the 5th grooves, then continuous winding
Six grooves, the 9th groove, the 12nd groove ....The canoe of winding 14 of the present invention is not limited to above-mentioned form.
The stator module 10 also includes iron core base 17 and stator seat 18, the iron core base 17 in a ring, the bottom plate
16 are fixedly connected with the iron core base 17, and the fixed form between the bottom plate 16 and the iron core base 17 can be consolidated for viscose glue
Determine, screw is fixed, buckle structure is fixed.The stator seat 18 includes fixed charge method end plate 182 and connecting cylinder 184, the fixing end
Plate 182 is based in the periphery of one end of the connecting cylinder 184, and in present embodiment, connecting cylinder 184 passes through with fixed charge method end plate 182
It is integrally formed to form integral structure, in other embodiment, separate structure can also be arranged to, then the two is assembled
It is fixed.The iron core base 17 is sheathed on the periphery of the connecting cylinder 184 together with the stator core 12 for winding the winding 14,
And the iron core base 17 is fixedly attached to the fixed charge method end plate 182, in present embodiment, iron core base 17 conforms to the fixing end
The surface of plate 182, and through fixed charge method end plate 182 and secured to by screw in iron core base 17.The internal layer magnetic sheet 24 houses
Between the stator core 12 and the connecting cylinder 184, the rotor axis of electric 22 stretches into the connecting cylinder 184 and the company of rotation
It is connected to the connecting cylinder 184.Specifically, internal layer magnetic sheet 24 is fixed to the outer of the internal rotor set 23 by a pair of retainer rings 28
Surface, triplicity is integral, and internal rotor set 23 is contained in stator core 12 with being connected together with internal layer magnetic sheet 24 and retainer ring 28
Between cylinder 184, and gap is left between the inner surface and connecting cylinder 184 of internal rotor set 23, internal rotor covers 23 inner surfaces and company
Gap mainly prevents from interfering when rotor from operating between connect cylinder 184.The inner surface of internal layer magnetic sheet 24 and stator core 12 it
Between also leave gap, the gap of internal layer magnetic sheet 24 and the inner surface of stator core 12 is mainly to ensure that the space of coil windings 14,
And reserved certain interval prevents operating from interfering.
The fan electromotor 200 of the present invention is also included located at the axle between the rotor axis of electric 22 and the stator module 10
Bearing assembly 30, the stator module 10 is rotatablely connected to the rotor axis of electric 22 by the bearing assembly 30, please simultaneously
Refering to Fig. 8, the bearing assembly 30 includes coaxial isometric internal magnetic ring 32 and outer magnetic ring 34, and the internal magnetic ring 32 is fixedly attached to
The rotor axis of electric 22, the outer magnetic ring 34 are fixedly attached to the stator module 10, and the outer magnetic ring 34 with it is described interior
It is stacked and axially aligns inside and outside magnet ring 32, working clearance G is provided between the internal magnetic ring 32 and the outer magnetic ring 34.Work
Clearance G mainly determines according to assembling, spare part machining accuracy, as small as possible in the case of ensuring not interfere.The axle of the present invention
The internal magnetic ring 32 and outer magnetic ring 34 of bearing assembly 30 complement each other to form axial permanent magnetic ripple magnetic suspension bearing, internal magnetic ring 32 and outer magnetic ring
34 axially align the restoring force of the state that tends towards stability vertically of generation, the restoring force axially aligned can autobalance, fan
During motor 200 works, axial blast is produced, magnetic suspension bearing can overcome axial blast, be in bearing assembly 30
Light Condition so that fan electromotor 200 moves the state for reaching stable, when inside and outside magnet ring 34 by external force due to being occurred axially
During skew, fan electromotor 200 is offset from each other by mutual magnetic field force, counteracting between inside and outside magnet ring 34.
The quantity of the internal magnetic ring 32 is multiple and coaxially overlapped that the quantity of the outer magnetic ring 34 is multiple and coaxial
Overlap, and each internal magnetic ring 32 and each outer magnetic ring 34 are axial charging, as shown in figure 9, in same
The opposite polarity of the both ends of the surface of magnet ring 32, the polarity of the both ends of the surface of same outer magnetic ring 34 is also on the contrary, adjacent two are described interior
The end face polarity being bonded to each other of magnet ring 32 is identical, the end face polarity being bonded to each other of two adjacent outer magnetic rings 34 also phase
Together, on same radial direction, the opposite polarity of the corresponding internal magnetic ring 32 and the outer magnetic ring 34.The internal magnetic ring 32
It is identical with the closed assembly mode of the outer magnetic ring 34, but order is on the contrary, as shown in figure 8, in Fig. 8 inside internal magnetic ring 32 and outer magnetic ring 34
The direction of arrow be its internal magnetic direction.
The bearing assembly 30 also includes fixed cover 36 and locating ring 38, and the fixed cover 36 is sheathed on the rotor
Axle 22 and it is fixedly connected with the rotor axis of electric 22, one end of the fixed cover 36 projects baffle ring 362, institute along radial direction
State internal magnetic ring 32 to be sheathed on the fixed cover 36 and be fixedly connected with the fixed cover 36, the locating ring 38 is sheathed on described solid
Surely one end away from the baffle ring 362 of set 36, the locating ring 38 are respectively limited by the internal magnetic ring 32 with the baffle ring 362
Both ends.
The bearing assembly 30 also includes a pair of mechanical bearings 39, described to be sheathed on the rotor to mechanical bearing 39
Axle 22, and it is located at the both sides of the fixed cover 36 respectively, that is to say, that in the axial direction, fixed cover 36 and internal magnetic ring 32
In described between mechanical bearing 39.It is described that the rotor axis of electric 22 and the stator module 10 are installed on to mechanical bearing 39
Between, to realize rotating shaft connection and the radial positioning between the rotor axis of electric 22 and the stator module 10.
The bearing assembly 30 also includes a pair of bearings set 37 and a pair of elastic washers 372, described that bearing holder (housing, cover) 37 is distinguished
Located at described between mechanical bearing 39 and the stator module 10, it is described elastic washer 372 is located in respectively it is described to axle
Bearing sleeve 37 and described between mechanical bearing 39.It is described that elastic washer 372 is used to carry out the vibration damping of mechanical bearing 39, improve machinery
The reliability of bearing 39 acts on.In present embodiment, described is 1~5mm to the thickness of elastic washer 372.
Specifically, the rotor axis of electric 22 is contained in the connection of the stator module 10 together with the bearing assembly 30
Cylinder 184 inside, and it is described bearing holder (housing, cover) 37 is fixedly connected with the inwall of connecting cylinder 184, one of them described bearing holder (housing, cover) 37
It is located at the connecting cylinder close to one end of the fixed charge method end plate 182, another described bearing holder (housing, cover) 37 in the connecting cylinder 184
The opening of 184 one end away from the fixed charge method end plate 182.
The bearing holder (housing, cover) 37 and the connection positioned at one end of the close fixed charge method end plate 182 of the connecting cylinder 184
Cylinder 184 is integral type structure, that is to say, that designs the structure of bearing holder (housing, cover) 37 in the inner surface of connecting cylinder 184, has bearing holder (housing, cover)
37 function, during installation, directly elastic washer 372 and one of mechanical bearing 39 are arranged on and are integrally formed at connecting cylinder
In the bearing holder (housing, cover) 37 of 184 inner surfaces, the cost of a bearing holder (housing, cover) 37, while ease of assembly have been saved, has saved man-hour.Positioned at described
The bearing holder (housing, cover) 37 of the opening of connecting cylinder 184 is removably fixed on the connecting cylinder 184, can be by close-fitting
Mode is fixed, can also viscose glue fix, certainly positioned at the connecting cylinder 184 opening the bearing holder (housing, cover) 37 can also with even
Connect cylinder 184 is formed integrally formula structure.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (15)
1. a kind of fan electromotor, including stator assembly and rotor assembly, the stator module includes the stator core that volume sets winding,
The rotor assembly includes rotor axis of electric, and the stator module is rotationally connected with the rotor axis of electric, it is characterised in that institute
Stating rotor assembly also includes tubular internal layer magnetic sheet and outer layer magnetic sheet, and the internal layer magnetic sheet and the outer layer magnetic sheet are coaxial,
And the outer layer magnetic sheet is set in outside the internal layer magnetic sheet, the rotor axis of electric is located at the axle center of the internal layer magnetic sheet,
The internal layer magnetic sheet includes multiple axially extending and circumferentially distributed interior magnetic stripe, the polarity per two adjacent interior magnetic stripes
On the contrary, the outer layer magnetic sheet includes multiple axially extending and circumferentially distributed outer magnetic stripe, per two adjacent outer magnetic stripes
Opposite polarity, homopolarity is relative in radial directions with the internal layer magnetic sheet for the outer layer magnetic sheet, and the stator module also includes solid
Due to the bottom plate, iron core base and stator seat of the end of the stator core, the iron core base in a ring, the bottom plate and institute
State iron core base to be fixedly connected, the stator seat includes fixed charge method end plate and connecting cylinder, and the fixed charge method end plate is based in the connecting cylinder
One end periphery, the iron core base is sheathed on the periphery of the connecting cylinder together with the stator core for winding the winding,
And the iron core base is fixedly attached to the fixed charge method end plate, the internal layer magnetic sheet is contained in the stator core and the connecting cylinder
Between, the rotor axis of electric stretches into the connecting cylinder and is rotationally connected with the connecting cylinder；The stator core is located at described
Between internal layer magnetic sheet and the outer layer magnetic sheet, and the stator core is in straight-tube shape, the internal layer magnetic sheet and the outer layer magnetic sheet
The caused magnetic line of force is vertically into the stator core, and the magnetic line of force in the stator core is formed along the stator
The tangential magnetic field of iron core circumferentially extending.
2. fan electromotor as claimed in claim 1, it is characterised in that the rotor assembly also includes the outer rotor being coaxially disposed
Set and internal rotor set, the outer rotor set are set in the outside of internal rotor set, the outer rotor set include the first mounting cylinder,
First fixing end and the first openend, first fixing end are located at an end face of first mounting cylinder, and described first opens
Mouthful end is located at another end face of first mounting cylinder, and the internal rotor set includes the second mounting cylinder, the second fixing end and the
Two openends, second fixing end are located at an end face of second mounting cylinder, and second openend is located at described the
Another end face of two mounting cylinders, second fixing end are fixedly connected on first fixing end, and the outer layer magnetic sheet is fixed
In the inner surface of first mounting cylinder, the internal layer magnetic sheet is fixed on the outer surface of second mounting cylinder, and the motor turns
One end of sub- axle is fixedly attached to first fixing end, and the other end of the rotor axis of electric is located at the institute of internal rotor set
State at the second openend.
3. fan electromotor as claimed in claim 2, it is characterised in that the rotor assembly also includes a pair of retainer rings, described
Fixing shrink ring by the both ends of the internal layer magnetic sheet located at the periphery of internal rotor set and for being fixed to the internal rotor set
The second installation tube outer surface.
4. fan electromotor as claimed in claim 1, it is characterised in that the multiple outer magnetic stripe is interconnected to form independently of one another
The outer layer magnetic sheet.
5. fan electromotor as claimed in claim 1, it is characterised in that the outer layer magnetic sheet is integral type structure.
6. fan electromotor as claimed in claim 1, it is characterised in that the stator core includes multiple ring-shaped silicon steel sheets, institute
State multiple silicon steel sheets mutually to laminate so that the stator core is in straight tube shape, circumference of the winding along the stator core
Directional spreding, and the surfaces externally and internally and both ends of the surface of the stator core are wound in, magnetic direction caused by the winding is institute
State the tangential direction of ring-shaped silicon steel sheet.
7. fan electromotor as claimed in claim 6, it is characterised in that the stator module is also described fixed including being individually fixed in
The both ends of the surface of sub- iron core and upper head plate in a ring, the upper head plate sets the upper winding slot of multiple spaced settings, described
Bottom plate sets the lower winding slot of multiple spaced settings, wind the winding of the stator core by the multiple around
Wire casing and the multiple lower winding slot.
8. fan electromotor as claimed in claim 1, it is characterised in that also include located at the rotor axis of electric and the stator
Bearing assembly between component, the stator module is rotatablely connected to the rotor axis of electric, institute by the bearing assembly
Stating bearing assembly includes coaxial isometric internal magnetic ring and outer magnetic ring, and the internal magnetic ring is fixedly attached to the rotor axis of electric, institute
State outer magnetic ring and be fixedly attached to the stator module, and the outer magnetic ring inside and outside the internal magnetic ring with being stacked and axially right
Together, the working clearance is provided between the internal magnetic ring and the outer magnetic ring.
9. fan electromotor as claimed in claim 8, it is characterised in that the bearing assembly also includes fixed cover and locating ring,
The fixed cover is sheathed on the rotor axis of electric and is fixedly connected with the rotor axis of electric, one end of the fixed cover along
Radial direction projects baffle ring, and the internal magnetic ring is sheathed on the fixed cover and is fixedly connected with the fixed cover, the locating ring
One end away from the baffle ring of the fixed cover is sheathed on, the locating ring is respectively limited by the internal magnetic ring with the baffle ring
Both ends.
10. fan electromotor as claimed in claim 9, it is characterised in that the bearing assembly also includes a pair of mechanical bearings, institute
State and the rotor axis of electric is sheathed on to mechanical bearing, and be located at the both sides of the fixed cover respectively, it is described that mechanical bearing is pacified
Loaded between the rotor axis of electric and the stator module, to realize between the rotor axis of electric and the stator module
Rotating shaft connection and radial positioning.
11. fan electromotor as claimed in claim 10, it is characterised in that the bearing assembly also includes a pair of bearings set and one
To elastic washer, it is described bearing holder (housing, cover) is respectively arranged on it is described between mechanical bearing and the stator module, it is described to cushion
Circle is located in described to bearing holder (housing, cover) and described between mechanical bearing respectively.
12. fan electromotor as claimed in claim 11, it is characterised in that the stator module also includes stator seat, described fixed
Stroma includes fixed charge method end plate and connecting cylinder, and the fixed charge method end plate is based in the periphery of one end of the connecting cylinder, volume set it is described around
The stator core of group is sheathed on the connecting cylinder periphery and is fixed on the fixed charge method end plate, and the rotor axis of electric is together with institute
Bearing assembly is stated to be contained in inside the connecting cylinder, and it is described bearing holder (housing, cover) is fixedly connected with the connecting cylinder inwall, wherein one
The individual bearing holder (housing, cover) is located at one end of the close fixed charge method end plate of the connecting cylinder, and another described bearing holder (housing, cover) is located at the company
One end away from the fixed charge method end plate of connect cylinder.
13. fan electromotor as claimed in claim 12, it is characterised in that positioned at the connecting cylinder close to the fixed charge method end plate
The bearing holder (housing, cover) and the connecting cylinder of one end be integral type structure；Positioned at the bearing holder (housing, cover) of the opening of the connecting cylinder
Removably it is fixed on the connecting cylinder.
14. fan electromotor as claimed in claim 8, it is characterised in that the quantity of the internal magnetic ring is multiple and coaxial overlapping
Set, the quantity of the outer magnetic ring is multiple and coaxially overlapped, and each internal magnetic ring and each outer magnetic ring are equal
For axial charging, the opposite polarity of the both ends of the surface of same internal magnetic ring, the polarity of the both ends of the surface of same outer magnetic ring is also on the contrary, phase
The end face polarity being bonded to each other of two adjacent internal magnetic rings is identical, the end being bonded to each other of two adjacent outer magnetic rings
Face polarity is also identical, the opposite polarity of the corresponding internal magnetic ring and the outer magnetic ring on same radial direction.
15. a kind of fan, including blade, it is characterised in that the fan also include be used for drive the blade as right will
The fan electromotor described in 1-14 any one is sought, the blade is set in the periphery of the rotor assembly of the fan electromotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410219836.0A CN105099108B (en) | 2014-05-22 | 2014-05-22 | Fan electromotor and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410219836.0A CN105099108B (en) | 2014-05-22 | 2014-05-22 | Fan electromotor and fan |
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| Publication Number | Publication Date |
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| CN105099108A CN105099108A (en) | 2015-11-25 |
| CN105099108B true CN105099108B (en) | 2017-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410219836.0A Active CN105099108B (en) | 2014-05-22 | 2014-05-22 | Fan electromotor and fan |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109155563A (en) * | 2017-12-29 | 2019-01-04 | 深圳市大疆创新科技有限公司 | Motor and its manufacturing method, power suit and unmanned vehicle |
| CN108696036B (en) * | 2018-06-27 | 2024-06-14 | 深圳市道通智能航空技术股份有限公司 | Motor, power device and unmanned vehicles |
| CN109944819A (en) * | 2019-04-17 | 2019-06-28 | 深圳市赫瑞科技有限公司 | A kind of anticorrosion fan |
| CN110224518A (en) * | 2019-07-16 | 2019-09-10 | 宋振明 | A kind of fan motor and centrifugal blower |
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| EP1879283A1 (en) * | 2006-04-20 | 2008-01-16 | Matsushita Electric Industrial Co., Ltd. | Motor |
| CN101956760A (en) * | 2009-07-20 | 2011-01-26 | 唐建一 | Magnetic suspension bearing for horizontal axis wind driven generator |
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| CN102290936A (en) * | 2011-08-11 | 2011-12-21 | 国电联合动力技术有限公司 | Large double-rotor permanent magnet generator directly driven by wind and generating set consisting of same |
| CN102943811A (en) * | 2012-11-19 | 2013-02-27 | 上海大学 | Industrial application type radial permanent magnet suspension bearing |
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|---|---|---|---|---|
| EP1879283A1 (en) * | 2006-04-20 | 2008-01-16 | Matsushita Electric Industrial Co., Ltd. | Motor |
| CN101956760A (en) * | 2009-07-20 | 2011-01-26 | 唐建一 | Magnetic suspension bearing for horizontal axis wind driven generator |
| CN102025238A (en) * | 2010-11-05 | 2011-04-20 | 中国船舶重工集团公司第七0七研究所 | Novel limited rotating angle direct-current moment motor |
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| CN105099108A (en) | 2015-11-25 |
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