CN107453495A - A kind of iron-core-free axial-flux electric machine stator and its manufacture method - Google Patents
A kind of iron-core-free axial-flux electric machine stator and its manufacture method Download PDFInfo
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- CN107453495A CN107453495A CN201710835397.XA CN201710835397A CN107453495A CN 107453495 A CN107453495 A CN 107453495A CN 201710835397 A CN201710835397 A CN 201710835397A CN 107453495 A CN107453495 A CN 107453495A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000004804 winding Methods 0.000 claims abstract description 161
- 239000002861 polymer material Substances 0.000 claims abstract description 15
- 230000002787 reinforcement Effects 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 238000005538 encapsulation Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 7
- 239000004020 conductor Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
- H02K15/0435—Wound windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/12—Transversal flux machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides a kind of iron-core-free axial-flux electric machine stator and its manufacture method, including interlocking type and ring-type type and its manufacture method.The three-phase coil winding formed after coil is connected is put into encapsulating mould, when encapsulating mould matched moulds, because the arrangement mode of coil is different, so as to realize the manufacture of interlocking type and ring-type type iron-core-free axial-flux electric machine stator.Invention removes iron core and PCB substrate, saves production cost；Need not be to the preposition integer of coil, but the one-shot forming in compacting, technique are simpler；Reinforcement, through hole are automatically generated, the power of big motor can be done；By inside and outside locating dowel to its positioning action of coil, the accuracy of form and position of coil is ensure that, ensure that batch uniformity of production product.Poured by the limited block and high polymer material of encapsulating mould, coil surface is generated high polymer material coating, winding coil is not drawn out by during axial force in the running.
Description
Technical field
The present invention relates to disc type electric machine field, more particularly to a kind of iron-core-free axial-flux electric machine stator and its manufacturer
Method.
Background technology
According to electromagnetic induction principle, phase current can produce rotating mmf by coil around it so that permanent magnet
Rotor rotated by the direction of rotating excitation field, so as to realize motor operating purpose.In the prior art, for disc type electric machine
Stator is cored mostly or iron-free cored structure.
Application for a patent for invention（Publication No.：CN103887904A）Disclose a kind of stator of axle stream motor and its manufactured
Journey, belong to cored axial-flux electric machine stator, be made up of iron core and the coil being wrapped on iron core.In installation electronics rotor
When, it is in irregular shape due to exposing coil sections in iron core top end face and bottom face, coordinate installation motor to turn with motor stator
The period of the day from 11 p.m. to 1 a.m can produce certain obstruction, i.e. rotor installation is not entered, or even if installation is entered, rotor is run also by shadow
Ring.When other motor stator assembles with motor housing, the coil in irregular shape for exposing iron core top end face and bottom face also can shadow
Ring the installation of motor stator itself.Therefore, after motor stator covers connect coil every time, it is necessary to carry out integer process, program compared with
To be cumbersome, the requirement to technique is also higher.
Application for a patent for invention（Publication No.：CN103001426A）A kind of printed circuit board (PCB) iron-core-free disc motor is disclosed,
Belong to iron-core-free axial-flux electric machine stator.Motor stator disk at least by two it is layer printed circuit board laminated add into, every layer printing electricity
Some radial straight wires are uniformly covered with the circumferential surface of road plate, the both ends of part straight wire are covered with by printed circuit board (PCB)
Arc wire be sequentially connected in series, form the winding of a multinomial motor wherein phase.This technical scheme employs PCB printed circuit board (PCB)s,
It is higher to produce cost, and the motor stator disk heat dispersion according to said method produced is bad, power of motor is difficult to do greatly.
Application for a patent for invention（Publication No.：CN104734389A）Disclose a kind of stator disc and axial flux permanent magnet kinetic energy dress
Put, belong to iron-core-free axial-flux electric machine stator.Motor stator includes PCB substrate, multiple windings, at least one connection conductor and
Current interruption connects conductor；The substrate has axis hole；The connection conductor is formed in PCB substrate；Multiple windings all or
Part is independent, and in PCB substrate, independent winding is completely or partially connected by the connection conductor in PCB with each other；Electric current
Terminal connection conductor is formed in PCB substrate, and winding is connected with phase current.The motor stator manufacturing process of this technical scheme is answered
It is miscellaneous, due to adding the thickness of stator using PCB substrate, cause motor gas-gap to increase, the increase of magnet steel dosage is caused, so as to increase
Production cost.
Utility model patent（Authorization Notice No.：CN201821170U）Disclose a kind of axial magnetic field disk motor electromagnetism battle array
Row, by the special-shaped coil of multiple smooth fitting coils equivalent amounts, along the circumferential direction interlocking arranges, after arrangement, the electricity of whole coils
Magnetic active section is uniformly distributed in circumferencial direction, forms circular electromagnetic array.Using the high polymer material of addition heat carrier by electricity
Magnetic array entirety sealing, the stator of axial magnetic field disk motor is used as using the electromagnetic array.Special-shaped wire in this technical scheme
Circle could be installed after needing specific integer, and motor stator manufacturing process is complicated.
To sum up, the major defect of prior art is：
First, technique is complex.The coil of cored motor stator needs to carry out integer technique, and program is relatively complicated.
Second, power is difficult to do greatly.The heat dispersion of printed circuit board (PCB) iron-core-free disc motor is bad, and power of motor is difficult to
Do big.
3rd, production cost is higher.The stator disc of PCB substrate adds the thickness of stator, and motor gas-gap increases and causes magnetic
Steel dosage increase, so as to add production cost.
4th, it is necessary to preposition integer.Using the technical scheme of smooth coil and special-shaped coil along the circumferential direction interlocking arrangement
When, special-shaped coil could be installed after needing specific integer.
The content of the invention
In view of this, the purpose of the present invention is overcome in existing disc type electric machine iron-core-free or cored stator disc technical scheme
Existing above mentioned problem, there is provided a kind of iron-core-free axial-flux electric machine stator and its manufacture method, based on same design, tool
Body is divided into two kinds of stators of interlocking type and ring-type type and its manufacture method.Concrete technical scheme is：
A kind of iron-core-free axial-flux electric machine stator, including：Three-phase coil winding, i.e.,：A phase coils winding, B phase coils winding, C
Phase coil winding；Three-phase coil winding is the cascaded structure of at least four coils respectively, respectively with an exit and one
Connection end；A phase coils winding, the coil of C phase coil windings are smooth coil, and the coil of B phase coil windings is smooth coil
The special-shaped coil of disposal molding after encapsulated mould compacting；Three-phase coil winding is by axially around axle center, stacking is handed in a manner of interlocking
For arrangement, two sides of the cutting magnetic line of A phase coil windings are respectively positioned on bottom, a cutting magnetic line of B phase coil windings
Side be located at bottom, the side of another cutting magnetic line is located at top layer, the equal position in two sides of the cutting magnetic line of C phase coil windings
In top layer；Three-phase coil winding in the coating of high polymer material, forms motor stator by sealing, and motor stator surface has interior
Through hole and accessibke porosity.
Further, the shape of coil is one kind in following shape：It is sector, rectangle, trapezoidal or circular.
Further, there are interior reinforcement and external reinforcing ribs in motor stator annular shape inner and outer rings edge.
A kind of iron-core-free axial-flux electric machine stator, including：Three-phase coil winding, i.e.,：A phase coils winding, B phase coils around
Group, C phase coil windings；Three-phase coil winding is the cascaded structure of at least four coils respectively, respectively with an exit and
One connection end；The coil of three-phase coil winding is smooth coil；Three-phase coil winding is by axially with ring style around axle center
Stacking is alternately arranged, wherein, A1 and the A3 coils of A phase coil windings is located at bottom, A2 and A4 coils are located at top layer, B phase coils
B1 and the B3 coil of winding are located at top layer, B2 and B4 coils are located at bottom, C1 and the C3 coils of C phase coil windings be located at bottom,
C2 is located at top layer with C4 coils；Three-phase coil winding in the coating of high polymer material, forms motor stator, motor by sealing
Stator surface has inner via hole and accessibke porosity.
Further, the shape of coil is one kind in following shape：It is sector, rectangle, trapezoidal or circular.
Further, there is reinforcement at motor stator annular shape inner and outer rings edge.
A kind of manufacture method of iron-core-free axial-flux electric machine stator, i.e. interlocking type, are manufactured in accordance with the following steps：
Step 1：By enamel-covered wire continuous coiling, the structure that four coils are connected, as coil windings, coil windings tool are formed
There are an exit and a connection end；
Step 2：By the method for step 1, three-phase coil winding, i.e. A phase coils winding, B phase coils winding, C phase lines are formed altogether
Enclose winding；
Step 3：By four hollow coils of A phase coil windings to be put into mould under encapsulating mould in a manner of 90 degree of ring-like spacer, lead to
Cross the interior locating dowel of mould, outer locating dowel under encapsulating mould to position coil, the exit of A phase coil windings is put into encapsulation
The corresponding exit notch of mould, connection end are put into the connection end notch of encapsulating mould；
Step 4：Four hollow coils of B phase coil windings are put into Encapsulation Moulds in a manner of biasing 30 degree with A phase coils winding
The lower mould of tool, by axially stacking on A phase coils, coil is carried out by the interior locating dowel of mould, outer locating dowel under encapsulating mould
Positioning, the exit of B phase coil windings is put into the corresponding exit notch of encapsulating mould, connection end is put into the company of encapsulating mould
Connect end slot mouth；
Step 5：Four hollow coils of C phase coil windings are put into Encapsulation Moulds in a manner of biasing 30 degree with B phase coils winding
The lower mould of tool, by axially stacking on B phase coils, coil is carried out by the interior locating dowel of mould, outer locating dowel under encapsulating mould
Positioning, the exit of C phase coil windings is put into the corresponding exit notch of encapsulating mould, connection end is put into the company of encapsulating mould
Connect end slot mouth；
Step 6：One word slice is respectively put into a word slice and places notch；
Step 7：The lower mould matched moulds of the upper mould and encapsulating mould of encapsulating mould, the coil of wherein B phase coils winding is disposable
Special-shaped coil is pressed into, three-phase coil winding automatically forms the structure of interlocking arrangement in pressing process；
Step 8：By high polymer material by injecting mould, by three-phase coil winding sealing；
Step 9：By encapsulating mould from push rod post holes ejection device；
Step 10：The connection end of three-phase coil winding is welded together, forms interlocking type iron-core-free axial-flux electric machine stator,
Motor stator surface with the corresponding position of locating dowel, outer locating dowel automatically forms inner via hole and accessibke porosity in mould under encapsulating mould.
A kind of manufacture method of iron-core-free axial-flux electric machine stator, i.e. ring-type type, are manufactured in accordance with the following steps：
Step 1：By enamel-covered wire continuous coiling, the structure that four coils are connected, as coil windings, coil windings tool are formed
There are an exit and a connection end；
Step 2：By the method for step 1, three-phase coil winding, i.e. A phase coils winding, B phase coils winding, C phase lines are formed altogether
Enclose winding；
Step 3：The coil sections of three groups of coil windings are biased to 60 degree of mode successively clockwise in the following order and are put into encapsulation
Lower mould bottom：A1, B4, C3, A3, B2, C1, coil is carried out by the interior locating dowel of mould, outer locating dowel under encapsulating mould
Positioning；
Step 4：Remaining coil of three groups of coil windings is biased to 60 degree of mode successively clockwise in the following order and is put into encapsulation
Lower mould top layer：B1, C4, A4, B3, C2, A2, coil is carried out by the interior locating dowel of mould, outer locating dowel under encapsulating mould
Positioning, top layer coil and bottom coil are staggered；
Step 5：The exit of three-phase coil winding is respectively put under encapsulating mould exit notch, connection end corresponding to mould
It is put into the connection end notch of mould under encapsulating mould；
Step 6：One word slice is respectively put into a word slice and places notch；
Step 7：By the lower mould matched moulds of the upper mould and encapsulating mould of encapsulating mould, form coil configuration and be divided into bottom, top layer ring-type
The structure of arrangement；
Step 8：High polymer material is injected into mould by hand-hole, by three-phase coil winding sealing；
Step 9：By encapsulating mould from push rod post holes ejection device；
Step 10：The connection end of three-phase coil winding is welded together, forms ring-type type iron-core-free axial-flux electric machine stator,
Motor stator surface with the corresponding position of locating dowel, outer locating dowel automatically forms inner via hole and accessibke porosity in mould under encapsulating mould.
The technical scheme of iron-core-free axial-flux electric machine stator provided by the invention and its manufacture method, generate has as follows
Beneficial effect：First, iron core and PCB substrate are eliminated, saves production cost；Second, without carrying out preposition integer work to coil,
But the one-shot forming in pressing process, technique are more simple；3rd, reinforcement, thermal vias are automatically generated, is using process
Coil is not easy to be drawn out, it may have preferable heat sinking function, can do the power of big motor；4th, pass through inside and outside positioning
Post ensure that the accuracy of form and position of coil, ensure that batch uniformity of production product to its positioning action of coil.5th, winding coil
On when having the coating of certain high polymer material to ensure motor work, winding is not by being subjected to displacement change during axial tension.
Brief description of the drawings
Fig. 1 is the schematic diagram of the coil cascaded structure of the phase coil winding of motor stator one of the present invention；
Fig. 2 is the schematic diagram that three-phase coil winding of the present invention is staggeredly superimposed arrangement；
Fig. 3 is the arrangement schematic diagram of iron-core-free axial-flux electric machine three-phase stator winding of the present invention, i.e. interlocking type, wherein：A1、
Four coils of A2, A3, A4 expression A phase coil windings, four coils of B1, B2, B3, B4 expression B phase coil windings, C1, C2,
C3, C4 represent four coils of C phase coil windings；
Fig. 4 is the arrangement schematic diagram of iron-core-free axial-flux electric machine three-phase stator winding of the present invention, i.e. ring-type type, wherein：A1、
Four coils of A2, A3, A4 expression A phase coil windings, four coils of B1, B2, B3, B4 expression B phase coil windings, C1, C2,
C3, C4 represent four coils of C phase coil windings；
Fig. 5 is mould schematic diagram under encapsulating mould used in the present invention, wherein：Locating dowel in 1-, the outer locating dowels of 2-, 3,4,5- draw
Going out end slot, 6- connection end slots, the word slice standing grooves of 7- mono- play the boss of position-limiting action under 8- in mould, reinforcement groove in mould under 9-,
Mould external reinforcing ribs groove under 10-, 11- push rod post holes top；
Fig. 6 is mould schematic diagram on encapsulating mould used in the present invention, wherein：1 '-interior positioning hole, 7 '-one word slice standing grooves,
Play the boss of position-limiting action in 8 '-upper mould, reinforcement groove in 9 '-upper mould, 10 '-upper mould external reinforcing ribs groove, 12- hand-holes；
Fig. 7 is encapsulating mould matched moulds view used in the present invention；
Fig. 8 is iron-core-free axial-flux electric machine stator schematic diagram of the present invention, wherein：1 ' '-inner via hole, 2 ' '-accessibke porosity, 9 ' '-interior
Reinforcement, 10 ' '-external reinforcing ribs.
Embodiment
To become apparent the purpose of the present invention, feature, the embodiment of the present invention is made below in conjunction with the accompanying drawings
Further instruction.Drawings in the following description are only the accompanying drawing of some embodiments of the present invention.For the common skill in this area
For art personnel, on the premise of not paying creative work, other embodiment party can also be obtained according to these embodiments
Formula.
The interlocking type iron-core-free axial-flux electric machine stator of embodiment one and its manufacture method
As shown in figure 1, by enamel-covered wire continuous coiling, the structure that four coils are connected, as coil windings are formed, there is one and draw
Go out end and a connection end, manufacture three-phase coil winding altogether using this method, i.e.,：A phase coils winding, B phase coils winding, C phases
Coil windings.
As shown in Fig. 2, Fig. 5, by three-phase coil winding, by axial direction, around axle center, stacking is alternately arranged under encapsulating mould on mould,
I.e.：
By four hollow coils of A phase coil windings to be put into mould under encapsulating mould in a manner of 90 degree of ring-like spacer, pass through encapsulation
Interior locating dowel, the outer locating dowel of lower mould are positioned to coil, and the exit of A phase coil windings is put into encapsulating mould
Corresponding exit notch, connection end are put into the connection end notch of encapsulating mould；
Four hollow coils of B phase coil windings are put into mould under encapsulating mould in a manner of biasing 30 degree with A phase coils winding,
By axially stacking on A phase coils, coil is positioned by the interior locating dowel of mould, outer locating dowel under encapsulating mould, by B
The exit of phase coil winding is put into the corresponding exit notch of encapsulating mould, connection end is put into the connection end slot of encapsulating mould
Mouthful；
Four hollow coils of C phase coil windings are put into mould under encapsulating mould in a manner of biasing 30 degree with B phase coils winding,
By axially stacking on B phase coils, coil is positioned by the interior locating dowel of mould, outer locating dowel under encapsulating mould, by C
The exit of phase coil winding is put into the corresponding exit notch of encapsulating mould, connection end is put into the connection end slot of encapsulating mould
Mouthful.
As shown in figure 5, three word slices are respectively put into a word slice places notch.
As shown in Figure 6, Figure 7, by the lower mould matched moulds of the upper mould and encapsulating mould of encapsulating mould, wherein B phase coils winding
Coil is disposably pressed into special-shaped coil, and three-phase coil winding automatically forms interlocking row as shown in Figure 3 in pressing process
Array structure.
As shown in fig. 7, high polymer material is injected into mould by hand-hole, by three-phase coil winding sealing, by Encapsulation Moulds
Have from push rod post holes ejection device.
The connection end of three-phase coil winding is welded together, iron-core-free axial-flux electric machine as shown in Figure 8 is formed and determines
Son, motor stator surface with the corresponding position of locating dowel, outer locating dowel automatically forms inner via hole and outer logical in mould under encapsulating mould
Hole.
The ring-type type iron-core-free axial-flux electric machine stator of embodiment two and its manufacture method
As shown in figure 1, four hollow coils is connected, a phase coil winding is formed, there is an exit and a connection end,
Manufacture three-phase coil winding altogether using this method, i.e.,：A phase coils winding, B phase coils winding, C phase coil windings.
As shown in Figure 2, Figure 4 shows, by three-phase coil winding, by axial direction, around axle center, stacking is alternately arranged under encapsulating mould on mould,
I.e.：
By four hollow coils of A phase coil windings to be put into mould under encapsulating mould in a manner of 90 degree of ring-like spacer, pass through encapsulation
Interior locating dowel, the outer locating dowel of lower mould are positioned to coil, and the exit of A phase coil windings is put into encapsulating mould
Corresponding exit notch, connection end are put into the connection end notch of encapsulating mould；
Four hollow coils of B phase coil windings are put into mould under encapsulating mould in a manner of biasing 30 degree with A phase coils winding,
By axially stacking on A phase coils, coil is positioned by the interior locating dowel of mould, outer locating dowel under encapsulating mould, by B
The exit of phase coil winding is put into the corresponding exit notch of encapsulating mould, connection end is put into the connection end slot of encapsulating mould
Mouthful；
Four hollow coils of C phase coil windings are put into mould under encapsulating mould in a manner of biasing 30 degree with B phase coils winding,
By axially stacking on B phase coils, coil is positioned by the interior locating dowel of mould, outer locating dowel under encapsulating mould, by C
The exit of phase coil winding is put into the corresponding exit notch of encapsulating mould, connection end is put into the connection end slot of encapsulating mould
Mouthful.
As shown in figure 5, three word slices are respectively put into a word slice places notch.
As shown in Figure 6, Figure 7, the lower mould matched moulds of the upper mould and encapsulating mould of encapsulating mould, three-phase coil winding are being suppressed
During automatically form annular arrangement structure as shown in Figure 4.
As shown in fig. 7, high polymer material is injected into mould by hand-hole, by three-phase coil winding sealing, by Encapsulation Moulds
Have from ejection device.
The connection end of three-phase coil winding is welded together, iron-core-free axial-flux electric machine as shown in Figure 8 is formed and determines
Son, motor stator surface with the corresponding position of locating dowel, outer locating dowel automatically forms through hole in mould under encapsulating mould.
In the above two embodiments, the shape of coil is fan-shaped that can also select rectangle, the trapezoidal or shape such as circular
Shape, reinforcement groove is provided with encapsulating mould, the reinforcement at motor stator annular shape inner and outer rings edge can be formed, use
Cheng Zhong, increase the intensity of motor stator, coil is not easy to be drawn out in use.Upper and lower encapsulating mould is provided with limited block
Boss, when making to have on winding coil the coating of certain high polymer material to ensure motor work, winding by during axial tension not
It is subjected to displacement change.
Although the present invention is disclosed above with preferred embodiment, so it is not limited to the present invention, any affiliated technology
Has usually intellectual in field, without departing from the spirit and scope of the present invention, when various variation and retouching can be made, therefore
Protection scope of the present invention should be defined by those as defined in claim.
Claims (8)
- A kind of 1. iron-core-free axial-flux electric machine stator, it is characterised in that including：Three-phase coil winding, i.e.,：A phase coils winding, B phase coils winding, C phase coil windings；The three-phase coil winding is the cascaded structure of at least four coils respectively, is connected respectively with an exit and one End；The A phase coils winding, the coil of C phase coil windings are smooth coil, and the coil of the B phase coils winding is smooth The special-shaped coil of disposal molding after the encapsulated mould compacting of coil；By axial direction, around axle center, stacking is alternately arranged the three-phase coil winding in a manner of interlocking, the cutting magnetic force of A phase coil windings Two sides of line are respectively positioned on bottom, and the side of a cutting magnetic line of B phase coil windings is located at bottom, another cutting magnetic line Side be located at top layer, two sides of the cutting magnetic line of C phase coil windings are respectively positioned on top layer；The three-phase coil winding in the coating of high polymer material, forms motor stator, motor stator surface has by sealing Inner via hole and accessibke porosity.
- 2. iron-core-free axial-flux electric machine stator according to claim 1, it is characterised in thatThe shape of the coil is one kind in following shape：It is sector, rectangle, trapezoidal or circular.
- 3. iron-core-free axial-flux electric machine stator according to claim 1 or 2, it is characterised in thatThere are interior reinforcement and external reinforcing ribs in the motor stator annular shape inner and outer rings edge.
- A kind of 4. iron-core-free axial-flux electric machine stator, it is characterised in that including：Three-phase coil winding, i.e.,：A phase coils winding, B phase coils winding, C phase coil windings；The three-phase coil winding is the cascaded structure of at least four coils respectively, is connected respectively with an exit and one End；The coil of the three-phase coil winding is smooth coil；The three-phase coil winding by axial direction with ring style around axle center stacking be alternately arranged, wherein, the A1 of A phase coil windings with A3 coils are located at bottom, A2 and A4 coils are located at top layer, and B1 and the B3 coil of B phase coil windings are located at top layer, B2 and B4 coils Positioned at bottom, C1 and the C3 coils of C phase coil windings is located at bottom, C2 and C4 coils are located at top layer；The three-phase coil winding in the coating of high polymer material, forms motor stator, motor stator surface has by sealing Inner via hole and accessibke porosity.
- 5. iron-core-free axial-flux electric machine stator according to claim 4, it is characterised in thatThe shape of the coil is one kind in following shape：It is sector, rectangle, trapezoidal or circular.
- 6. the iron-core-free axial-flux electric machine stator according to claim 4 or 5, it is characterised in thatThere are interior reinforcement and external reinforcing ribs in the motor stator annular shape inner and outer rings edge.
- A kind of 7. method of the iron-core-free axial-flux electric machine stator described in manufacturing claims 1, it is characterised in thatStep 1：By enamel-covered wire continuous coiling, the structure that four coils are connected, as coil windings, coil windings tool are formed There are an exit and a connection end；Step 2：By the method for step 1, three-phase coil winding, i.e. A phase coils winding, B phase coils winding, C phase lines are formed altogether Enclose winding；Step 3：By four hollow coils of A phase coil windings to be put into mould under encapsulating mould in a manner of 90 degree of ring-like spacer, lead to Cross the interior locating dowel of mould, outer locating dowel under encapsulating mould to position coil, the exit of A phase coil windings is put into encapsulation The corresponding exit notch of mould, connection end are put into the connection end notch of encapsulating mould；Step 4：Four hollow coils of B phase coil windings are put into Encapsulation Moulds in a manner of biasing 30 degree with A phase coils winding The lower mould of tool, by axially stacking on A phase coils, coil is carried out by the interior locating dowel of mould, outer locating dowel under encapsulating mould Positioning, the exit of B phase coil windings is put into the corresponding exit notch of encapsulating mould, connection end is put into the company of encapsulating mould Connect end slot mouth；Step 5：Four hollow coils of C phase coil windings are put into Encapsulation Moulds in a manner of biasing 30 degree with B phase coils winding The lower mould of tool, by axially stacking on B phase coils, coil is carried out by the interior locating dowel of mould, outer locating dowel under encapsulating mould Positioning, the exit of C phase coil windings is put into the corresponding exit notch of encapsulating mould, connection end is put into the company of encapsulating mould Connect end slot mouth；Step 6：One word slice is respectively put into a word slice and places notch；Step 7：The lower mould matched moulds of the upper mould and encapsulating mould of encapsulating mould, the coil of wherein B phase coils winding is disposable Special-shaped coil is pressed into, three-phase coil winding automatically forms the structure of interlocking arrangement in pressing process；Step 8：High polymer material is injected into mould by hand-hole, by three-phase coil winding sealing；Step 9：By encapsulating mould from push rod post holes ejection device；Step 10：The connection end of three-phase coil winding is welded together, forms iron-core-free axial-flux electric machine stator, motor is fixed Sublist face with the corresponding position of locating dowel, outer locating dowel automatically forms inner via hole and accessibke porosity in mould under encapsulating mould.
- A kind of 8. method of the iron-core-free axial-flux electric machine stator described in manufacturing claims 4, it is characterised in thatStep 1：By enamel-covered wire continuous coiling, the structure that four coils are connected, as coil windings, coil windings tool are formed There are an exit and a connection end；Step 2：By the method for step 1, three-phase coil winding, i.e. A phase coils winding, B phase coils winding, C phase lines are formed altogether Enclose winding；Step 3：The coil sections of three groups of coil windings are biased to 60 degree of mode successively clockwise in the following order and are put into encapsulation Lower mould bottom：A1, B4, C3, A3, B2, C1, coil is carried out by the interior locating dowel of mould, outer locating dowel under encapsulating mould Positioning；Step 4：Remaining coil of three groups of coil windings is biased to 60 degree of mode successively clockwise in the following order and is put into encapsulation Lower mould top layer：B1, C4, A4, B3, C2, A2, coil is carried out by the interior locating dowel of mould, outer locating dowel under encapsulating mould Positioning, top layer coil and bottom coil are staggered；Step 5：The exit of three-phase coil winding is respectively put under encapsulating mould exit notch, connection end corresponding to mould It is put into the connection end notch of mould under encapsulating mould；Step 6：One word slice is respectively put into a word slice and places notch；Step 7：By the lower mould matched moulds of the upper mould and encapsulating mould of encapsulating mould, form coil configuration and be divided into bottom, top layer ring-type The structure of arrangement；Step 8：High polymer material is injected into mould by hand-hole, by three-phase coil winding sealing；Step 9：By encapsulating mould from push rod post holes ejection device；Step 10：The connection end of three-phase coil winding is welded together, forms iron-core-free axial-flux electric machine stator, motor is fixed Sublist face with the corresponding position of locating dowel, outer locating dowel automatically forms inner via hole and accessibke porosity in mould under encapsulating mould.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710835397.XA CN107453495A (en) | 2017-09-15 | 2017-09-15 | A kind of iron-core-free axial-flux electric machine stator and its manufacture method |
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| CN201710835397.XA CN107453495A (en) | 2017-09-15 | 2017-09-15 | A kind of iron-core-free axial-flux electric machine stator and its manufacture method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020139090A1 (en) * | 2018-12-28 | 2020-07-02 | Universidad César Vallejo S.A.C. | Three-phase axial-flow electric motor |
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| CN103795214A (en) * | 2012-10-31 | 2014-05-14 | 常州乐士雷利电机有限公司 | Coreless disc type motor |
| CN104638851A (en) * | 2015-02-03 | 2015-05-20 | 吕周安 | Molding tool for coils of motor |
| CN204451051U (en) * | 2015-02-03 | 2015-07-08 | 吕周安 | A kind of mould of stator injection-compression molding |
| CN104779728A (en) * | 2015-02-12 | 2015-07-15 | 吕周安 | Stator winding structure of disc type coreless permanent magnet motor and disc type coreless permanent magnet motor |
| CN207251321U (en) * | 2017-09-15 | 2018-04-17 | 江苏和晖电动工具有限公司 | A kind of iron-core-free axial-flux electric machine stator |
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- 2017-09-15 CN CN201710835397.XA patent/CN107453495A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795214A (en) * | 2012-10-31 | 2014-05-14 | 常州乐士雷利电机有限公司 | Coreless disc type motor |
| CN104638851A (en) * | 2015-02-03 | 2015-05-20 | 吕周安 | Molding tool for coils of motor |
| CN204451051U (en) * | 2015-02-03 | 2015-07-08 | 吕周安 | A kind of mould of stator injection-compression molding |
| CN104779728A (en) * | 2015-02-12 | 2015-07-15 | 吕周安 | Stator winding structure of disc type coreless permanent magnet motor and disc type coreless permanent magnet motor |
| CN207251321U (en) * | 2017-09-15 | 2018-04-17 | 江苏和晖电动工具有限公司 | A kind of iron-core-free axial-flux electric machine stator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020139090A1 (en) * | 2018-12-28 | 2020-07-02 | Universidad César Vallejo S.A.C. | Three-phase axial-flow electric motor |
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