CN105099108A - Fan motor and fan - Google Patents
Fan motor and fan Download PDFInfo
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- CN105099108A CN105099108A CN201410219836.0A CN201410219836A CN105099108A CN 105099108 A CN105099108 A CN 105099108A CN 201410219836 A CN201410219836 A CN 201410219836A CN 105099108 A CN105099108 A CN 105099108A
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Abstract
The invention relates to a fan motor. The fan motor comprises a stator component and a rotor component. The stator component comprises a stator core coiling a winding. The stator component is rotatably connected with a motor rotor shaft. The rotator component comprises an inner layer magnetic sheet and an outer layer magnetic sheet. The inner layer magnetic sheet and the outer layer magnetic sheet are coaxial. The outer layer magnetic sheet sleeves the inner layer magnetic sheet. The inner layer magnetic sheet comprises a plurality of inner magnetic strips. The polarities of every two adjacent inner magnetic strips are opposite. The outer layer magnetic sheet comprises a plurality of outer magnetic strips. The polarities of every two adjacent outer magnetic strips are opposite. The same polarities of the outer layer magnetic sheet and the inner layer magnetic sheet in the radial direction are opposite to each other. The stator core is arranged between the inner layer magnetic sheet and the outer layer magnetic sheet. The magnetic lines generated by the inner layer magnetic sheet and the outer layer magnetic sheet go into the stator core vertically, and a tangential field is formed with magnetic lines in the stator core. When the fan motor rotates, the stator core does not cut magnetic lines, the magnetic lines generated by the stator core do not generate eddy current loss, and therefore the stator core iron loss value is lowered. The invention also provides a fan.
Description
Technical field
The present invention relates to fan art, particularly relate to a kind of birotor fan and fan electromotor.
Background technology
Fan motor be a class for converting electrical energy into the device of mechanical energy in fan apparatus, it is primarily of a stator winding in order to the electromagnet winding or distribution that produce magnetic field and a rotating armature or rotor composition.Motor utilizes hot-wire coil phenomenon of Forced rotation in magnetic field to make.Fan has been used in each electronic product, along with the development trend that each electronic product is compact, all constantly increases the requirement of the volume of fan and the performance of fan.Therefore, how to design a kind of energy loss little, the fan electromotor that operating efficiency is high, for industry continues the problem of research.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of fan electromotor, has energy loss little, the advantage that operating efficiency is high.To achieve these goals, embodiment of the present invention provides following technical scheme:
On the one hand, the invention provides a kind of fan electromotor, comprise stator module and rotor assembly, described stator module comprises the stator core that volume establishes winding, described rotor assembly comprises rotor axis of electric, described stator module is rotationally connected with described rotor axis of electric, described rotor assembly also comprises all tubular internal layer magnetic sheet and outer magnetic sheet, described internal layer magnetic sheet is coaxial with described outer magnetic sheet, and described outer magnetic sheet is set in described internal layer magnetic sheet outside, described rotor axis of electric is positioned at the axle center place of described internal layer magnetic sheet, described internal layer magnetic sheet comprises multiple axially extension and the interior magnetic stripe circumferentially distributed, the polarity of often adjacent two described interior magnetic stripes is contrary, described outer magnetic sheet comprises multiple axially extension and the outer magnetic stripe circumferentially distributed, often adjacent two described outer magnetic stripe polarity are contrary, homopolarity is relative in radial directions for described outer magnetic sheet and described internal layer magnetic sheet, described stator core is located between described internal layer magnetic sheet and described outer magnetic sheet, and described stator core is straight-tube shape, described internal layer magnetic sheet is vertical with the magnetic line of force that described outer magnetic sheet produces enters described stator core, and the magnetic line of force in described stator core forms the tangential magnetic field extended along described stator core circumference.
Wherein, described rotor assembly also comprises the coaxial external rotor arranged and overlaps and internal rotor cover, described external rotor cover is set in the outside of described internal rotor cover, described external rotor cover comprises the first mounting cylinder, first stiff end and the first openend, described first stiff end is located at an end face of described first mounting cylinder, described first openend is located at another end face of described first mounting cylinder, described internal rotor cover comprises the second mounting cylinder, second stiff end and the second openend, described second stiff end is located at an end face of described second mounting cylinder, described second openend is located at another end face of described second mounting cylinder, described second stiff end is fixedly connected on described first stiff end, described outer magnetic sheet is fixed on the inner surface of described first mounting cylinder, described internal layer magnetic sheet is fixed on the outer surface of described second mounting cylinder, one end of described rotor axis of electric is fixedly attached to described first stiff end, the other end of described rotor axis of electric is positioned at described second open end of described internal rotor cover.
Wherein, described rotor assembly also comprises a pair retainer ring, and described Fixing shrink ring is located at the periphery of described internal rotor cover and the described second mounting cylinder outer surface for the two ends of described internal layer magnetic sheet being fixed to described internal rotor cover.
Wherein, described multiple outer magnetic stripe is interconnected to form described outer magnetic sheet independently of one another.
Wherein, described outer magnetic sheet is integral type structure.
Wherein, described stator core comprises multiple ring-shaped silicon steel sheet, described multiple silicon steel sheet laminates mutually, described stator core is made to be straight tube shape, described winding distributes along the circumferencial direction of described stator core, and being wound in surfaces externally and internally and the both ends of the surface of described stator core, the magnetic direction that described winding produces is the tangential direction of described ring-shaped silicon steel sheet.
Wherein, described stator module also comprises the both ends of the surface and all ringwise upper head plate and bottom plate that are individually fixed in described stator core, described upper head plate establishes the upper winding slot of multiple spaced setting, described bottom plate establishes the lower winding slot of multiple spaced setting, is wound around the described winding of described stator core by described multiple upper winding slot and described multiple lower winding slot.
Wherein, described stator module also comprises iron core base and stator seat, described iron core base ringwise, described bottom plate is fixedly connected with described iron core base, described stator seat comprises fixed charge method end plate and connecting cylinder, described fixed charge method end plate is based in the periphery of one end of described connecting cylinder, described iron core base is sheathed on the periphery of described connecting cylinder together with the described stator core being wound around described winding, and described iron core base is fixedly attached to described fixed charge method end plate, described internal layer magnetic sheet is contained between described stator core and described connecting cylinder, described rotor axis of electric stretches into described connecting cylinder and is rotationally connected with described connecting cylinder.
Wherein, described fan electromotor also comprises the bearing assembly be located between described rotor axis of electric and described stator module, by described bearing assembly, described stator module is rotationally connected to described rotor axis of electric, described bearing assembly comprises coaxially isometric internal magnetic ring and outer magnetic ring, described internal magnetic ring is fixedly attached to described rotor axis of electric, described outer magnetic ring is fixedly attached to described stator module, and stacked setting and axially aligning inside and outside described outer magnetic ring and described internal magnetic ring, be provided with the working clearance between described internal magnetic ring and described outer magnetic ring.
Wherein, described bearing assembly also comprises fixed cover and locating ring, described fixed cover is sheathed on described rotor axis of electric and is fixedly connected with described rotor axis of electric, one end of described fixed cover radially projects baffle ring in direction, described internal magnetic ring is sheathed on described fixed cover and is fixedly connected with described fixed cover, described locating ring is sheathed on one end away from described baffle ring of described fixed cover, and described locating ring and described baffle ring are limited in the two ends of described internal magnetic ring respectively.
Wherein, described bearing assembly also comprises a pair mechanical bearing, described described rotor axis of electric is sheathed on to mechanical bearing, and lay respectively at the both sides of described fixed cover, describedly be installed between described rotor axis of electric and described stator module to mechanical bearing, be connected and radial location with the rotating shaft realized between described rotor axis of electric with described stator module.
Wherein, described bearing assembly also comprises pair of bearings cover and a pair elastic washer, described bearing holder (housing, cover) is located at respectively described between mechanical bearing and described stator module, described elastic washer is located in respectively described to bearing holder (housing, cover) and described between mechanical bearing.
Wherein, described stator module also comprises stator seat, described stator seat comprises fixed charge method end plate and connecting cylinder, described fixed charge method end plate is based in the periphery of one end of described connecting cylinder, volume establishes the described stator core of described winding be sheathed on described connecting cylinder periphery and be fixed on described fixed charge method end plate, it is inner that described rotor axis of electric is contained in described connecting cylinder together with described bearing assembly, and described bearing holder (housing, cover) to be fixedly connected with described connecting cylinder inwall, bearing holder (housing, cover) described in one of them is positioned at one end near described fixed charge method end plate of described connecting cylinder, bearing holder (housing, cover) described in another is positioned at one end away from described fixed charge method end plate of described connecting cylinder.
Wherein, the described bearing holder (housing, cover) and the described connecting cylinder that are positioned at one end near described fixed charge method end plate of described connecting cylinder are integral type structure; The described bearing holder (housing, cover) being positioned at the opening part of described connecting cylinder is fixed on described connecting cylinder removably.
Wherein, the quantity of described internal magnetic ring is multiple and coaxially overlaps, the quantity of described outer magnetic ring is multiple and coaxially overlaps, and each described internal magnetic ring and each described outer magnetic ring are axial charging, the polarity of the both ends of the surface of same internal magnetic ring is contrary, the polarity of the both ends of the surface of same outer magnetic ring is also contrary, the end face polarity bonded to each other of two adjacent described internal magnetic rings is identical, the end face polarity bonded to each other of two adjacent described outer magnetic rings is also identical, and described internal magnetic ring corresponding on same radial direction is contrary with the polarity of described outer magnetic ring.
On the other hand, the present invention also provides a kind of fan, comprises blade and for driving the fan electromotor described in described blade, described blade is set in the periphery of the described rotor assembly of described fan electromotor.
Because the fan electromotor of the present invention comprises birotor, namely in internal layer magnetic sheet and outer magnetic sheet are formed respectively, external rotor, described internal layer magnetic sheet is vertical with the magnetic line of force that described outer magnetic sheet produces enters described stator core, to produce effective torque, and the magnetic line of force in described stator core forms tangential magnetic field, because tangential magnetic field is consistent with fan electromotor direction of rotation, that is when fan electromotor rotates, stator core can not cutting magnetic line, the magnetic line of force that stator core produces can not produce eddy current loss, thus the numerical value of described stator core iron loss is declined, thus fan electromotor energy loss is reduced, improve the operating efficiency of fan electromotor.。
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in execution mode below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained 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 fan electromotor in one embodiment of the present invention.
Fig. 5 is the three-dimensional exploded view of the rotor assembly of fan electromotor in one embodiment of the present invention.
Fig. 6 is the stator core of fan electromotor, the three-dimensional exploded view of winding, up and down end plate and iron core base in one embodiment of the present invention.
Fig. 7 is the schematic perspective view of the stator seat in the stator module of 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 fan electromotor in one embodiment of the present invention.
Fig. 9 is the interface schematic diagram of single internal magnetic ring in the bearing assembly of fan electromotor in one embodiment of the present invention or outer magnetic ring.
Figure 10 be fan electromotor in one embodiment of the present invention internal layer magnetic sheet, form the schematic diagram in magnetic field between outer magnetic sheet and stator core.
Figure 11 is the schematic diagram of winding a kind of canoe on stator core of fan electromotor in one embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.
Refer to Fig. 1, Fig. 2 and Fig. 3, the present invention relates to a kind of fan 100 and fan electromotor 200, fan 100 comprises blade 102 and for driving the described fan electromotor 200 of described blade 102.
Fan electromotor 200 comprises stator module 10 and rotor assembly 20, and described stator module 10 comprises the stator core 12 that volume establishes winding 14, and described rotor assembly 20 comprises rotor axis of electric 22, and described stator module 10 is rotationally connected with described rotor axis of electric 22.Described rotor assembly 20 also comprises all tubular internal layer magnetic sheet 24 and outer magnetic sheet 26, described internal layer magnetic sheet 24 is coaxially arranged with described outer magnetic sheet 26, and described outer magnetic sheet 26 is set in described internal layer magnetic sheet 24 outside, described rotor axis of electric 22 is positioned at the axle center place of described internal layer magnetic sheet 24 and described outer magnetic sheet 26, rotor axis of electric 22, internal layer magnetic sheet 24 and outer magnetic sheet 26 are fixedly connected with, jointly to rotate, internal layer magnetic sheet 24 and outer magnetic sheet 26 form dual-rotor structure.Described internal layer magnetic sheet 24 comprises multiple axially extension and the interior magnetic stripe 242 circumferentially distributed, often adjacent two interior magnetic stripe 242 polarity are contrary, described outer magnetic sheet 26 comprises multiple axially extension and the outer magnetic stripe 262 circumferentially distributed, often adjacent two outer magnetic stripe 262 polarity are contrary, homopolarity is relative in radial directions for described outer magnetic sheet 26 and described internal layer magnetic sheet 24, as shown in Figure 10, the polarity of such as one interior magnetic stripe 242 is N pole, and the polarity being the outer magnetic stripe 262 of magnetic stripe 242 on same Radius in N pole with this is also N pole.The direction of the magnetic line of force that described interior magnetic stripe 242 produces with described outer magnetic stripe 262 all radially extends.Interior magnetic stripe 242 is even number with the quantity of outer magnetic stripe 262.
Refer to Figure 10, described stator core 12 is located between described internal layer magnetic sheet 24 and described outer magnetic sheet 26, and described stator core 12 is in straight-tube shape, described internal layer magnetic sheet 24 is vertical with the magnetic line of force that described outer magnetic sheet 26 produces enters described stator core 12, and the magnetic line of force in described stator core 12 forms the tangential magnetic field that the circumference along described stator core 12 extends.Specifically, the magnetic line of force direction of the polarity of diametrically answering to be interior magnetic stripe 242 and the polarity of N pole the be outer magnetic stripe 262 of N pole is all vertical enters stator core 12, after entering stator core 12, the magnetic line of force is circumferentially that in S pole, magnetic stripe 242 and polarity are that the outer magnetic stripe 262 of S pole extends towards adjacent polarity in described stator core 12, and then radially direction extends to polarity from stator core 12 to the magnetic line of force is respectively that in S pole, magnetic stripe 242 and polarity are the outer magnetic stripe 262 of S pole.
When the winding 14 on stator core 12 is energized, air gap between described stator module 10 and described rotor assembly 20 produces rotating magnetic field, namely the magnetic force line cutting rotating magnetic field that described rotor assembly 20 produces produces induced electromotive force and induced current, induced current and rotating magnetic field interact and produce electromagnetic force, thus described rotor assembly 20 is rotated.Described blade 102 is set in the periphery of the rotor assembly 20 of described fan electromotor 200, while rotating, rotates to be with moving vane 102 with rotor assembly 20.
Because the fan electromotor 200 of the present invention comprises birotor, namely in internal layer magnetic sheet 24 and outer magnetic sheet 26 are formed respectively, external rotor, described internal layer magnetic sheet 24 is vertical with the magnetic line of force that described outer magnetic sheet 26 produces enters described stator core 12, to produce effective torque, and the magnetic line of force in described stator core 12 forms tangential magnetic field, because tangential magnetic field is consistent with fan electromotor 200 direction of rotation, that is when fan electromotor 200 rotates, stator core 12 can not cutting magnetic line, stator core 12 would not generation current, namely stator core 12 can not produce eddy current loss, thus the numerical value of described stator core 12 iron loss is declined.
Installation and the location structure of described internal layer magnetic sheet 24 and outer magnetic sheet 26 are specific as follows, please refer to Fig. 4 and Fig. 5.
Described rotor assembly 20 also comprises coaxial setting and mutually nested external rotor cover 25 and internal rotor cover 23, described external rotor cover 25 comprises the first mounting cylinder 252, first stiff end 254 and the first openend 256, described first stiff end 254 is located at an end face of described first mounting cylinder 252, described first openend 256 is located at another end face of described first mounting cylinder 252, external rotor overlaps the barrel shaped structure of 25 similar one end open, specifically, first stiff end 254 is shaped in one end of the first mounting cylinder 252, and the first mounting cylinder 252 is in drum-shaped structure, first stiff end 254 is in disc.Described internal rotor cover 23 comprises the second mounting cylinder 232, second stiff end 234 and the second openend 236, described second stiff end 234 is located at an end face of described second mounting cylinder 232, described second openend 236 is located at another end face of described second mounting cylinder 232, specifically, second stiff end 234 is annular and radially extends towards the center of the second mounting cylinder 232 from one end of the second mounting cylinder 232, and the second mounting cylinder 232 is in drum-shaped structure.Described second stiff end 234 is fixedly connected on described first stiff end 254, described outer magnetic sheet 26 is fixed on the inner surface of described first mounting cylinder 252, described internal layer magnetic sheet 24 is fixed on the outer surface of described second mounting cylinder 232, one end of described rotor axis of electric 22 is fixedly attached to the center of described first stiff end 254, and the other end of described rotor axis of electric 22 stretches out described second openend 236.In present embodiment, internal layer magnetic sheet 24 and outer magnetic sheet 26 is fixed as carrier by inside and outside mutually nested internal rotor cover 23 and external rotor cover 25, the size that internal layer magnetic sheet 24 and outer magnetic sheet 26 are set can be needed according to fan electromotor 200, the material of inner and outer Rotator cover 25 is permeability magnetic material, steel can be selected, described inner and outer Rotator cover 25 can increase magnetosonic intensity, reduces leakage field.In other execution mode, also inside and outside layer magnetic sheet 24,26 structure also can be made the magnet ring of whole cylindrical shape, magnet ring be circumferentially processed as multiple magnetic pole respectively, two adjacent magnetic poles are contrary, directly inside and outside layer magnetic sheet 24,26 is fixedly connected on rotor axis of electric 22, so just can omits the structural design of inner and outer Rotator cover 23,25.
In the present embodiment, the fixed form that internal layer magnetic sheet 24 and internal rotor overlap between 23 is: described rotor assembly 20 also comprises a pair retainer ring 28, described retainer ring 28 is sheathed on the periphery of described internal rotor cover 23 and overlaps 23 outer surfaces for the two ends of described internal layer magnetic sheet 24 are fixed to described internal rotor, the two ends of internal layer magnetic sheet 24 are fixed to internal rotor cover 23 by a pair retainer ring 28, namely the fixing of internal layer magnetic sheet 24 is achieved, in order to strengthen fixed effect, can between retainer ring 28 and internal layer magnetic sheet 24 and internal rotor overlap 23 standby glue.In other embodiment, also directly internal layer magnetic sheet 24 can be fixed to internal rotor cover 23 by the mode of viscose glue, cancel the structure of retainer ring 28.
The fixed form that outer magnetic sheet 26 and external rotor overlap between 25 inner surfaces can be fixed by the mode of viscose glue, also 25 close-fitting modes can be overlapped by outer magnetic sheet 26 with external rotor, namely the diameter of outer magnetic sheet 26 is a bit larger tham the internal diameter of external rotor cover 25, outer magnetic sheet 26 is pressed in external rotor cover 25, the two is seamlessly fitted tightly.
In a kind of execution mode, described multiple outer magnetic stripe 262 is interconnected to form described outer magnetic sheet 26 independently of one another, the manufacturing cost of outer magnetic stripe 262 independent of each other is lower, working (machining) efficiency is high, first outer magnetic stripe 262 can be connected into outer magnetic sheet 26, again outer magnetic sheet 26 is fixed to external rotor cover 25, also directly outer magnetic stripe 262 can be fixed to external rotor and overlaps 25 inner surfaces, overlap 25 inner surfaces at external rotor and form outer magnetic sheet 26.Concrete connected mode can be connected by the mode of viscose glue, also by the mode of other physical connection, such as, can increase a fixed mount, fixed mount comprises the slot of the outer magnetic stripe 262 of multiple collecting, outer magnetic stripe 262 is snapped in corresponding slot inner, to form outer magnetic sheet 26.
In another kind of execution mode, described outer magnetic sheet 26 is integral type structure, forms described multiple outer magnetic stripe 262, the Stability Analysis of Structures of the outer magnetic sheet 26 of integral type by the mode magnetized, and is easy to install.
Please refer to Fig. 6, described stator core 12 comprises multiple ring-shaped silicon steel sheet, described multiple silicon steel sheet laminates mutually, make described stator core 12 in straight tube shape, inner surface and the outer surface of described stator core 12 are the smooth face of cylinder, described winding 14 distributes along the circumferencial direction of described stator core 12, and be wound in surfaces externally and internally and the both ends of the surface of described stator core 12, the magnetic direction that described winding 14 produces is the tangential direction of described ring-shaped silicon steel sheet, the tangential direction of ring-shaped silicon steel sheet is just perpendicular to the direction of the radius of annular silicon silicon steel sheet, as shown in Figure 10, it is exactly the direction of the tangential magnetic field that stator core 12 internal circumferential extends.Because stator core 12 adopts silicon steel sheet, silicon steel sheet can not be magnetized, and does not have remaining remanent magnetism, therefore, it is possible to suppress the loss of stator core 12 surface eddy, and the magnetic line of force of stator core 12 inside is consistent with fan electromotor 200 direction of rotation, does not produce eddy current loss.So the iron loss of fan electromotor 200 of the present invention compared with conventional motors, numerically decline to a great extent, and to be at the winding 14 (i.e. coil) of stator core 12 surfaces externally and internally and axially to extend, in the process that fan electromotor 200 moves, winding 14 all perpendicular cuts magnetic lines of force of stator core 12 surfaces externally and internally, institute is magnetic field force induced is all tangential direction, all for generation of winding 14 moment, does not have other component.
Please refer to Figure 11, in a kind of execution mode, described winding 14 is three-phase windings, comprises U phase winding, V phase winding and W phase winding, and three is uniformly distributed along the circumference of described stator core 12 by 120 degree of electrical degrees.Described U phase winding, described V phase winding and described W phase winding form three-phase absolute coil winding, or the mid point of described U phase winding, described V phase winding and described W phase winding is connected and forms Y type connected mode, wye connection refers to that three-phase windings respectively has a common port to connect together, one end connection control circuit in addition, similar " Y " word.
Described stator module 10 also comprises the both ends of the surface and all ringwise upper head plate 15 and bottom plate 16 that are individually fixed in described stator core 12, described upper head plate 15 establishes the upper winding slot 152 of multiple spaced setting, described bottom plate 16 establishes the lower winding slot 162 of multiple spaced setting, is wound around the described winding 14 of described stator core 12 by described multiple upper winding slot 152 and described multiple lower winding slot 162.Make in the process of stator module 10, first upper head plate 15 and bottom plate 16 are fixed to two end faces of stator core 12, be wound around described winding 14 again, upper winding slot 152 is consistent with lower winding slot 162 quantity and keep relation one to one, upper winding slot 152 overlaps with the projection of lower winding slot 162 in the plane perpendicular to described stator core 12, be wound around in the process of described winding 14, carry out interval that winding 14 is wound around and location by upper winding slot 152 and lower winding slot 162.
Please refer to Figure 11, (a) figure in Figure 11 is depicted as the schematic diagram being only wound with U phase winding on stator core 12, and (b) figure in Figure 11 is depicted as the schematic diagram that described U phase winding, described V phase winding and described W phase winding distribute on stator core 12.Specifically, described U phase winding, described V phase winding and the concrete canoe of described W phase winding on described stator core 12 are: be first wrapped on stator core 12 by U phase winding, U phase winding all in axial direction extends at the coil of the surfaces externally and internally of stator core 12, and at the two ends of stator core 12, the coil of U phase winding is wrapped in winding slot 152 and lower winding slot 162 respectively, and two upper and lower winding slots 152,162 of being separated by between the coil of adjacent U phase winding, that is, U phase winding is to be wound around across the mode of two grooves.Described V phase winding is identical with described U phase winding with the canoe of described W phase winding, and be also to be wound around across the mode of two grooves, the coil of V phase winding and the coil of W phase winding are arranged between the coil of adjacent U phase winding according to the order of sequence.Illustrate that the Winding theory of winding of the present invention in upper winding slot 152 is as follows, upper winding slot 152 is numbered according to the order of sequence the first groove, the second groove, the 3rd groove ... after U phase winding is wound around the first groove, stride across second and third groove, then continuous winding the 4th groove, the 7th groove, the tenth groove ... V phase winding is wound around from the second groove, stride across the 3rd, the 4th groove, then continuous winding the 5th groove, the 8th groove, the 11 groove ... W phase winding is wound around from the 3rd groove, stride across the 4th, the 5th groove, then continuous winding the 6th groove, the 9th groove, the 12 groove ...The canoe of winding 14 of the present invention is not limited to above-mentioned form.
Described stator module 10 also comprises iron core base 17 and stator seat 18, described iron core base 17 ringwise, described bottom plate 16 is fixedly connected with described iron core base 17, and the fixed form between described bottom plate 16 and described iron core base 17 can be fixed for viscose glue, screw is fixed, buckle structure is fixed.Described stator seat 18 comprises fixed charge method end plate 182 and connecting cylinder 184, described fixed charge method end plate 182 is based in the periphery of one end of described connecting cylinder 184, in present embodiment, connecting cylinder 184 and fixed charge method end plate 182 are by one-body molded formation integral structure, in other execution mode, also separate type can be arranged to, then it is fixing the two to be carried out assembling.Described iron core base 17 is sheathed on the periphery of described connecting cylinder 184 together with the described stator core 12 being wound around described winding 14, and described iron core base 17 is fixedly attached to described fixed charge method end plate 182, in present embodiment, iron core base 17 conforms to the surface of described fixed charge method end plate 182, and passes fixed charge method end plate 182 by screw and secure in iron core base 17.Described internal layer magnetic sheet 24 is contained between described stator core 12 and described connecting cylinder 184, and described rotor axis of electric 22 stretches into described connecting cylinder 184 and is rotationally connected with described connecting cylinder 184.Specifically, internal layer magnetic sheet 24 is fixed to by a pair retainer ring 28 outer surface that described internal rotor overlaps 23, triplicity is integral, internal rotor cover 23 is contained between stator core 12 and connecting cylinder 184 together with internal layer magnetic sheet 24 and retainer ring 28, and leaving gap between the inner surface of internal rotor cover 23 and connecting cylinder 184, internal rotor overlaps when gap between 23 inner surfaces and connecting cylinder 184 mainly prevents rotor from operating and interferes.Also leave gap between the inner surface of internal layer magnetic sheet 24 and stator core 12, internal layer magnetic sheet 24 mainly will ensure coil windings 14 space with the gap of the inner surface of stator core 12, and reserved certain interval prevents running from interfering.
The fan electromotor 200 of the present invention also comprises the bearing assembly 30 be located between described rotor axis of electric 22 and described stator module 10, by described bearing assembly 30, described stator module 10 is rotationally connected to described rotor axis of electric 22, please refer to Fig. 8, described bearing assembly 30 comprises coaxially isometric internal magnetic ring 32 and outer magnetic ring 34, described internal magnetic ring 32 is fixedly attached to described rotor axis of electric 22, described outer magnetic ring 34 is fixedly attached to described stator module 10, and stacked setting and axially aligning inside and outside described outer magnetic ring 34 and described internal magnetic ring 32, working clearance G is provided with between described internal magnetic ring 32 and described outer magnetic ring 34.Working clearance G mainly determines according to assembling, spare part machining accuracy, guaranteeing in not interference situation, little as far as possible.The internal magnetic ring 32 of the bearing assembly 30 of the present invention and outer magnetic ring 34 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 generation state that tends towards stability vertically, the restoring force axially aligned can autobalance, in the process that fan electromotor 200 works, produce axial blast, magnetic suspension bearing can overcome axial blast, bearing assembly 30 is made to be in Light Condition, fan electromotor 200 is moved and reaches stable state, when interior, when outer magnetic ring 34 is owing to being subject to external force generation axial dipole field, in, by mutual magnetic field force between outer magnetic ring 34, counteracting offsets from each other fan electromotor 200.
The quantity of described internal magnetic ring 32 is multiple and coaxially overlaps, the quantity of described outer magnetic ring 34 is multiple and coaxially overlaps, and each described internal magnetic ring 32 is axial charging with each described outer magnetic ring 34, as shown in Figure 9, the polarity of the both ends of the surface of same internal magnetic ring 32 is contrary, the polarity of the both ends of the surface of same outer magnetic ring 34 is also contrary, the end face polarity bonded to each other of adjacent two described internal magnetic rings 32 is identical, the end face polarity bonded to each other of adjacent two described outer magnetic rings 34 is also identical, on same radial direction, corresponding described internal magnetic ring 32 is contrary with the polarity of described outer magnetic ring 34.Described internal magnetic ring 32 is identical with the closed assembly mode of described outer magnetic ring 34, but order is contrary, and as shown in Figure 8, in Fig. 8, internal magnetic ring 32 is the magnetic direction of its inside with the direction of the arrow of outer magnetic ring 34 inside.
Described bearing assembly 30 also comprises fixed cover 36 and locating ring 38, described fixed cover 36 is sheathed on described rotor axis of electric 22 and is fixedly connected with described rotor axis of electric 22, one end of described fixed cover 36 radially projects baffle ring 362 in direction, described internal magnetic ring 32 is sheathed on described fixed cover 36 and is fixedly connected with described fixed cover 36, described locating ring 38 is sheathed on one end away from described baffle ring 362 of described fixed cover 36, and described locating ring 38 and described baffle ring 362 are limited in the two ends of described internal magnetic ring 32 respectively.
Described bearing assembly 30 also comprises a pair mechanical bearing 39, described described rotor axis of electric 22 is sheathed on to mechanical bearing 39, and lays respectively at the both sides of described fixed cover 36, that is, in the axial direction, fixed cover 36 and internal magnetic ring 32 described to mechanical bearing 39 between.Describedly be installed between described rotor axis of electric 22 and described stator module 10 to mechanical bearing 39, be connected and radial location with the rotating shaft realized between described rotor axis of electric 22 with described stator module 10.
Described bearing assembly 30 also comprises pair of bearings cover 37 and a pair elastic washer 372, described bearing holder (housing, cover) 37 is located at respectively described between mechanical bearing 39 and described stator module 10, described elastic washer 372 is located in respectively described to bearing holder (housing, cover) 37 and described between mechanical bearing 39.Described to elastic washer 372 for carrying out mechanical bearing 39 vibration damping, improve the effect of mechanical bearing 39 reliability.In present embodiment, described 1 ~ 5mm is to elastic washer 372 thickness.
Specifically, the connecting cylinder 184 that described rotor axis of electric 22 is contained in described stator module 10 together with described bearing assembly 30 is inner, and described bearing holder (housing, cover) 37 to be fixedly connected with described connecting cylinder 184 inwall, bearing holder (housing, cover) 37 described in one of them is positioned at one end near described fixed charge method end plate 182 of described connecting cylinder 184, and bearing holder (housing, cover) 37 described in another is positioned at the opening part of one end away from described fixed charge method end plate 182 of described connecting cylinder 184.
The described bearing holder (housing, cover) 37 being positioned at one end near described fixed charge method end plate 182 of described connecting cylinder 184 is integral type structure with described connecting cylinder 184, that is, the structure of bearing holder (housing, cover) 37 is designed at the inner surface of connecting cylinder 184, there is the function of bearing holder (housing, cover) 37, during installation, directly elastic washer 372 and one of them mechanical bearing 39 are arranged in the bearing holder (housing, cover) 37 being integrally formed at connecting cylinder 184 inner surface, have saved the cost of a bearing holder (housing, cover) 37, ease of assembly simultaneously, saves man-hour.The described bearing holder (housing, cover) 37 being positioned at the opening part of described connecting cylinder 184 is fixed on described connecting cylinder 184 removably, can be fixed by close-fitting mode, also can fix by viscose glue, the described bearing holder (housing, cover) 37 being certainly positioned at the opening part of described connecting cylinder 184 also can make integral structure with connecting cylinder 184.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (16)
1. a fan electromotor, comprise stator module and rotor assembly, described stator module comprises the stator core that volume establishes winding, described rotor assembly comprises rotor axis of electric, described stator module is rotationally connected with described rotor axis of electric, it is characterized in that, described rotor assembly also comprises all tubular internal layer magnetic sheet and outer magnetic sheet, described internal layer magnetic sheet is coaxial with described outer magnetic sheet, and described outer magnetic sheet is set in described internal layer magnetic sheet outside, described rotor axis of electric is positioned at the axle center place of described internal layer magnetic sheet, described internal layer magnetic sheet comprises multiple axially extension and the interior magnetic stripe circumferentially distributed, the polarity of often adjacent two described interior magnetic stripes is contrary, described outer magnetic sheet comprises multiple axially extension and the outer magnetic stripe circumferentially distributed, often adjacent two described outer magnetic stripe polarity are contrary, homopolarity is relative in radial directions for described outer magnetic sheet and described internal layer magnetic sheet, described stator core is located between described internal layer magnetic sheet and described outer magnetic sheet, and described stator core is straight-tube shape, described internal layer magnetic sheet is vertical with the magnetic line of force that described outer magnetic sheet produces enters described stator core, and the magnetic line of force in described stator core forms the tangential magnetic field extended along described stator core circumference.
2. fan electromotor as claimed in claim 1, it is characterized in that, described rotor assembly also comprises the coaxial external rotor arranged and overlaps and internal rotor cover, described external rotor cover is set in the outside of described internal rotor cover, described external rotor cover comprises the first mounting cylinder, first stiff end and the first openend, described first stiff end is located at an end face of described first mounting cylinder, described first openend is located at another end face of described first mounting cylinder, described internal rotor cover comprises the second mounting cylinder, second stiff end and the second openend, described second stiff end is located at an end face of described second mounting cylinder, described second openend is located at another end face of described second mounting cylinder, described second stiff end is fixedly connected on described first stiff end, described outer magnetic sheet is fixed on the inner surface of described first mounting cylinder, described internal layer magnetic sheet is fixed on the outer surface of described second mounting cylinder, one end of described rotor axis of electric is fixedly attached to described first stiff end, the other end of described rotor axis of electric is positioned at described second open end of described internal rotor cover.
3. fan electromotor as claimed in claim 2, it is characterized in that, described rotor assembly also comprises a pair retainer ring, and described Fixing shrink ring is located at the periphery of described internal rotor cover and the described second mounting cylinder outer surface for the two ends of described internal layer magnetic sheet being fixed to described internal rotor cover.
4. fan electromotor as claimed in claim 1, it is characterized in that, described multiple outer magnetic stripe is interconnected to form described outer magnetic sheet independently of one another.
5. fan electromotor as claimed in claim 1, it is characterized in that, described outer magnetic sheet is integral type structure.
6. fan electromotor as claimed in claim 1, it is characterized in that, described stator core comprises multiple ring-shaped silicon steel sheet, described multiple silicon steel sheet laminates mutually, described stator core is made to be straight tube shape, described winding distributes along the circumferencial direction of described stator core, and is wound in surfaces externally and internally and the both ends of the surface of described stator core, and the magnetic direction that described winding produces is the tangential direction of described ring-shaped silicon steel sheet.
7. fan electromotor as claimed in claim 6, it is characterized in that, described stator module also comprises the both ends of the surface and all ringwise upper head plate and bottom plate that are individually fixed in described stator core, described upper head plate establishes the upper winding slot of multiple spaced setting, described bottom plate establishes the lower winding slot of multiple spaced setting, is wound around the described winding of described stator core by described multiple upper winding slot and described multiple lower winding slot.
8. fan electromotor as claimed in claim 7, it is characterized in that, described stator module also comprises iron core base and stator seat, described iron core base ringwise, described bottom plate is fixedly connected with described iron core base, described stator seat comprises fixed charge method end plate and connecting cylinder, described fixed charge method end plate is based in the periphery of one end of described connecting cylinder, described iron core base is sheathed on the periphery of described connecting cylinder together with the described stator core being wound around described winding, and described iron core base is fixedly attached to described fixed charge method end plate, described internal layer magnetic sheet is contained between described stator core and described connecting cylinder, described rotor axis of electric stretches into described connecting cylinder and is rotationally connected with described connecting cylinder.
9. fan electromotor as claimed in claim 1, it is characterized in that, also comprise the bearing assembly be located between described rotor axis of electric and described stator module, by described bearing assembly, described stator module is rotationally connected to described rotor axis of electric, described bearing assembly comprises coaxially isometric internal magnetic ring and outer magnetic ring, described internal magnetic ring is fixedly attached to described rotor axis of electric, described outer magnetic ring is fixedly attached to described stator module, and stacked setting and axially aligning inside and outside described outer magnetic ring and described internal magnetic ring, the working clearance is provided with between described internal magnetic ring and described outer magnetic ring.
10. fan electromotor as claimed in claim 9, it is characterized in that, described bearing assembly also comprises fixed cover and locating ring, described fixed cover is sheathed on described rotor axis of electric and is fixedly connected with described rotor axis of electric, one end of described fixed cover radially projects baffle ring in direction, described internal magnetic ring is sheathed on described fixed cover and is fixedly connected with described fixed cover, described locating ring is sheathed on one end away from described baffle ring of described fixed cover, and described locating ring and described baffle ring are limited in the two ends of described internal magnetic ring respectively.
11. fan electromotors as claimed in claim 10, it is characterized in that, described bearing assembly also comprises a pair mechanical bearing, described described rotor axis of electric is sheathed on to mechanical bearing, and lay respectively at the both sides of described fixed cover, describedly be installed between described rotor axis of electric and described stator module to mechanical bearing, be connected and radial location with the rotating shaft realized between described rotor axis of electric with described stator module.
12. fan electromotors as claimed in claim 11, it is characterized in that, described bearing assembly also comprises pair of bearings cover and a pair elastic washer, described bearing holder (housing, cover) is located at respectively described between mechanical bearing and described stator module, described elastic washer is located in respectively described to bearing holder (housing, cover) and described between mechanical bearing.
13. fan electromotors as claimed in claim 12, it is characterized in that, described stator module also comprises stator seat, described stator seat comprises fixed charge method end plate and connecting cylinder, described fixed charge method end plate is based in the periphery of one end of described connecting cylinder, volume establishes the described stator core of described winding be sheathed on described connecting cylinder periphery and be fixed on described fixed charge method end plate, it is inner that described rotor axis of electric is contained in described connecting cylinder together with described bearing assembly, and described bearing holder (housing, cover) to be fixedly connected with described connecting cylinder inwall, bearing holder (housing, cover) described in one of them is positioned at one end near described fixed charge method end plate of described connecting cylinder, bearing holder (housing, cover) described in another is positioned at one end away from described fixed charge method end plate of described connecting cylinder.
14. fan electromotors as claimed in claim 13, is characterized in that, the described bearing holder (housing, cover) and the described connecting cylinder that are positioned at one end near described fixed charge method end plate of described connecting cylinder are integral type structure; The described bearing holder (housing, cover) being positioned at the opening part of described connecting cylinder is fixed on described connecting cylinder removably.
15. fan electromotors as claimed in claim 9, it is characterized in that, the quantity of described internal magnetic ring is multiple and coaxially overlaps, the quantity of described outer magnetic ring is multiple and coaxially overlaps, and each described internal magnetic ring and each described outer magnetic ring are axial charging, the polarity of the both ends of the surface of same internal magnetic ring is contrary, the polarity of the both ends of the surface of same outer magnetic ring is also contrary, the end face polarity bonded to each other of two adjacent described internal magnetic rings is identical, the end face polarity bonded to each other of two adjacent described outer magnetic rings is also identical, described internal magnetic ring corresponding on same radial direction is contrary with the polarity of described outer magnetic ring.
16. 1 kinds of fans, comprise blade, it is characterized in that, described fan also comprises the fan electromotor as described in claim 1-15 any one for driving described blade, and described blade is set in the periphery of the described rotor assembly of described fan electromotor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410219836.0A CN105099108B (en) | 2014-05-22 | 2014-05-22 | Fan electromotor and fan |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410219836.0A CN105099108B (en) | 2014-05-22 | 2014-05-22 | Fan electromotor and fan |
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| CN105099108B CN105099108B (en) | 2017-11-17 |
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| CN108696036A (en) * | 2018-06-27 | 2018-10-23 | 深圳市道通智能航空技术有限公司 | A kind of motor, power plant and unmanned vehicle |
| 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 |
| 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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| CN110224518A (en) * | 2019-07-16 | 2019-09-10 | 宋振明 | A kind of fan motor and centrifugal blower |
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| CN105099108B (en) | 2017-11-17 |
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