CN109842229A - A kind of stator structure based on disc-type permanent magnet motor winding - Google Patents
A kind of stator structure based on disc-type permanent magnet motor winding Download PDFInfo
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Abstract
The invention discloses a kind of stator structures based on disc-type permanent magnet motor winding, comprising: at least 6 layers or 6N layers of pcb board and Hall sensor；Multiple groups outer end, winding setting unit and multiple groups inner end are provided on every layer of the pcb board；Three-phase windings are at least arranged in each layer on the pcb board, and winding described in each phase is correspondingly arranged two terminals respectively；The terminals are arranged on the outer end；Each phase winding coil carries out printing arrangement from the corresponding outer end；The winding coil is circumferentially uniformly printed on the winding setting unit, and the length of the winding coil radially print by laid out in parallel, and laid out in parallel and does not overlap；The winding coil described in every layer of the pcb board upper same phase being arranged pass through the outer end and and the inner end be attached；The Hall sensor is angled to be arranged on the outer end；Each layer is connected by via hole in the pcb board.
Description
Technical field
The present invention relates to motor field more particularly to a kind of stator structures based on disc-type permanent magnet motor winding.
Background technique
Disc type electric machine is different from conventional radial motor, and the rotor of disc type electric machine is axially disposed, there is single rotor list stator,
Intermediate stator, the structures such as multi-disc type.Conventional radial motor is there are some masty difficult points, such as torque pulsation, weak heat-dissipating,
Rotor core utilization rate is low etc., therefore disc type electric machine starts more and more to be paid attention in the forties in last century.Currently, disc type
Motor has a wide range of applications in fields such as flywheel energy storage system, electromechanical integration equipments.PCB stator disc type magneto is print
The combination of circuit board technology and disc type electric machine technology processed.Stator uses PCB technology, no stator core, so the production system of motor
Simple, small in size, light weight is made, power density height, torque pulsation is small, and electric machine structure is compact.
The key of PCB stator disc type Design of PM Motor is the design of PCB winding, and the design and printed circuit board of winding are raw
Production. art, motor output performance, motor gas-gap size, dosage and motor size of permanent-magnet material etc. have close relationship.It is right
For traditional wire laying mode, have due to every layer of active conductor, and outer end only has one layer, inner end only has two layers.Institute
With under same current density, general outer end is 6 times bigger than active conductor, inner end is 3 degree bigger than active conductor width, interior outer end
Portion will occupy larger space, so that the utilization rate of stator reduces, influence to contribute.For the inner radius of natively narrow space,
Can seem very " crowded ", so that wiring difficulty increases, influence to radiate, limit the promotion of electric current, especially in every extremely every phase slot
When number is more, this influence can be more significant.MgO-ZrO_2 brick is more, and end quantity is more, and the space occupied is bigger, copper loss
Bigger, efficiency is lower, so that the promotion of power density becomes difficult.
Therefore, based on the technical problem present on, the present invention provides the technical solutions for solving the above technical problem.
Summary of the invention
The object of the present invention is to provide a kind of stator structure based on disc-type permanent magnet motor winding, stator structures of the invention
Mode is substantially reduced tip lengths and the space occupied, so that inner radius wiring is convenient, is conducive to the high current that circulates, fixed
The effective rate of utilization of stator is improved in the case that sub- outer diameter is certain.
Technical solution provided by the invention is as follows:
A kind of stator structure based on disc-type permanent magnet motor winding, comprising: at least 6 layers or 6N layers of pcb board and Hall
Sensor；Multiple groups outer end, winding setting unit and multiple groups inner end are provided on every layer of the pcb board；The pcb board
On each layer three-phase windings are at least set, winding described in each phase is correspondingly arranged two terminals respectively；The terminals
It is arranged on the outer end；Each phase winding coil carries out printing arrangement from the corresponding outer end；The winding
Coil is circumferentially uniformly printed on the winding setting unit, and the length of the winding coil radially print by laid out in parallel, and
It laid out in parallel and does not overlap；The winding coil described in every layer of the pcb board upper same phase being arranged pass through the outer end and
And the inner end is attached；The Hall sensor is angled to be arranged on the outer end；Each layer is logical in the pcb board
Via hole connection.
Specifically, the winding of the connection type used can make full use of the space of stator plate, reduce stator board size
Meanwhile the active conductor of each layer same position is connected in parallel by via hole, can increase conducting electric current, reduces winding resistance；
The resistance and copper loss of every phase winding are also reduced, efficiency and output power have been correspondingly improved.It is provided in stator plate simultaneously
Angled installation Hall sensor, can detect the position of rotor in real time, further can improve electricity according to rotor-position
Machine control, can also extend electrical machinery life and reduce cost.
It is further preferred that including: that outer diameter of the outer end along the winding setting unit is circumferentially arranged, and at radian
Setting；Internal diameter of the inner end along the winding setting unit is circumferentially arranged, and is arranged at radian.
It is further preferred that including: to be respectively provided with multiple outer end conductors on outer end described in every group, and every group of outer end is led
Body number is equal；It is respectively provided with multiple inner end conductors on inner end described in every group, and is arranged on inner end described in adjacent two groups
Inner end conductor number differ.
It is further preferred that including: that the both ends of the outer end conductor are separately connected two in the winding setting unit
Different conductors；The both ends of the inner end conductor are separately connected two conductors in the winding setting unit.
It is further preferred that including: that the winding setting unit of every layer of the pcb board is provided with multiple conductors, often
One end of a conductor is connected with the outer end conductor, and the other end is connected with the inner end conductor；Multiple conductors
It is connected by corresponding multiple outer end conductors with multiple inner end conductor correspondences, constitutes the described of same phase
Winding coil.
It is further preferred that including: the winding coil printed in the winding setting unit of every layer of the pcb board
It is different according to the number of phases of winding, successively it is staggered.
It is further preferred that including: that the conductor of the composition winding coil of the same phase of the same layer of the pcb board is in
Nonconcentric(al) helical form connection.
It is further preferred that including: the internal diameter and outer diameter upper edge that the winding setting unit is arranged in the via hole, often
A via hole is separately positioned on the both ends of the conductor；For connecting the conductor of same opposite position.
It is further preferred that including: the conductor parallel connection in the winding setting unit of the same layer of the pcb board
And/or series connection.
It is further preferred that including: that the pcb board is arranged to be round.
A kind of stator structure based on disc-type permanent magnet motor winding provided by the invention is at least brought following a kind of beneficial to effect
Fruit is as follows:
In the present invention, the active conductor of each layer same position is connected in parallel by via hole, can be increased conducting electric current, be subtracted
Small winding resistance；The wider each conductor for being used to connect coil group of winding overhang.Each coil of winding be it is whole away from, compared to
The effective rate of utilization of non-overlap concentratred winding, stator increases, and under identical air gap flux density, unloaded back-emf can be more
Greatly.
In the present invention, the winding arrangement mode of invention is distributed winding, can make full use of the space under permanent magnet, short distance
Coefficient is 1, and winding coefficient improves, and output performance can increase, and the whole copper loss of winding is lower, and corresponding efficiency and power are close
Degree can improve.
In the present invention, the not single ceoncentrically wound coil of coil group in stator plate winding is constituted, every conductor and
Nearest conductor connection therewith, allows for that end is relatively short, and loss reduces in this way, and output performance is improved.And make
The space of stator plate makes full use of, while also reducing the stator even volume of motor.The high occasion of space requirement have compared with
Big advantage.
In the present invention, which increases unloaded anti-in the case where stator outer diameter size is certain
Electromotive force, since the reduction of copper loss is so that efficiency increases, but also output power when load increases.
In the present invention, due to the space utilization of stator plate more sufficiently so that the structure of motor is more compact, in sky
Between demanding occasion have biggish advantage.
In the present invention, stator winding inner radius possesses biggish space, so that wiring herein is more convenient flexibly, this
Place's winding heat dissipation also makes moderate progress.
In the present invention, stator winding inner radius possesses biggish space, improves heat-sinking capability, facilitates outlet, end
Portion is shorter smaller, and copper loss is smaller, more efficient, is conducive to the promotion of power of motor density.
Detailed description of the invention
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, to one kind based on desk permanent-magnet electricity
Above-mentioned characteristic, technical characteristic, advantage and its implementation of the stator structure of machine winding are further described.
Fig. 1 is a kind of structure chart of stator structure one embodiment based on disc-type permanent magnet motor winding of the present invention；
Fig. 2 is a kind of circuit diagram based on another embodiment of the stator structure of disc-type permanent magnet motor winding of the present invention；
Fig. 3 is a kind of circuit diagram of another embodiment of the stator structure based on disc-type permanent magnet motor winding of the present invention；
Fig. 4 is a kind of circuit diagram of another embodiment of the stator structure based on disc-type permanent magnet motor winding of the present invention.
Specific embodiment
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, Detailed description of the invention will be compareed below
A specific embodiment of the invention.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically shown in each figure, their not generations
Its practical structures as product of table.
The present invention provides a kind of stator structures based on disc-type permanent magnet motor winding, with reference to shown in Fig. 1；It include: at least 6
Layer or 6N layers of pcb board and Hall sensor；Be provided on every layer of the pcb board multiple groups outer end, winding setting unit,
And multiple groups inner end；Three-phase windings are at least arranged in each layer on the pcb board, and winding described in each phase, which respectively corresponds, to be set
Set two terminals；The terminals are arranged on the outer end；Each phase winding coil is from the corresponding outer end
Place carries out printing arrangement；The winding coil is circumferentially uniformly printed on the winding setting unit, and the length of the winding coil
Degree radially print by laid out in parallel, and laid out in parallel and does not overlap；The winding described in every layer of the pcb board upper same phase being arranged
Coil pass through the outer end and and the inner end be attached；The Hall sensor is angled to be arranged in the outer end
In portion；Each layer is connected by via hole in the pcb board.Fig. 4 is the position view of three position sensor Hall ICs, difference
Hexagonal angle degree.7 and 8 be the power supply positive and negative terminals of three Hall ICs, and 9,10,11 be Hall H1 respectively, and the position signal of H2, H3 are defeated
Outlet.
Specifically, in embodiment in the present invention, the multiple that the number of plies of PCB circuit board is 6, in the present embodiment with 6
For layer, the lead-out wire of winding is drawn from winding setting unit respectively, and by the outer outlet and interior outlet, corresponding setting is in outer end
Portion and inner end, and the corresponding conductor that every layer of same position is arranged in is connected in parallel by via hole.Every layer of conductor point is extremely
It is less three-phase, every phase is divided into several coil groups, this several coil group is typically used in series in constitutes a phase winding together.In this reality
It applies and is for example provided with A in example on the stator, B, C three-phase is then provided with 3 phases on each layer of PCB, on 6 layers of pcb board
It is each it is corresponding link together, constitute the three-phase of stator winding, each corresponding two connecting terminals are respectively as follows:
B-, B+, A+, A-, C-, C+, the label 1,2,3,4,5,6 in corresponding diagram；The outside of outer end is arranged in terminals in the present invention,
The winding mode of winding coil is successively to be wound wiring from outer end, winding setting unit, inner end；This kind of mode makes it
The number of conductor on every group of outer end and on inner end is unequal；With reference to shown in Fig. 1；Each layer of pcb board is both provided with outer
End 3, winding setting unit 1 and inner end 2；Each phase winding coil is by outer end, winding setting unit and inner end
The conductor connection coiling of upper setting forms；It is to be connected to by via hole between adjacent layer in pcb board.In addition, the application's
It is at an angle of at the surface outer diameter of pcb board and is provided with sensor suddenly, as Hall IC.Three Hall ICs are surface-mount type, Hall IC it
Between difference hexagonal angle degree be placed in the outside of magnet steel (i.e. at winding overhang).
In the present invention, the winding of the connection type of use can make full use of the space of stator plate, reduce stator board foot
While very little, the active conductor of each layer same position is connected in parallel by via hole, can increase conducting electric current, reduces winding electricity
Resistance；The resistance and copper loss of every phase winding are also reduced, efficiency and output power have been correspondingly improved.It is arranged in stator plate simultaneously
There is angled installation Hall sensor, the position of rotor can be detected in real time, can further be improved according to rotor-position
Motor control can also extend electrical machinery life and reduce cost.
One embodiment is additionally provided in the present invention, with reference to shown in Fig. 2；The outer end 300 is set along the winding
The outer diameter for setting portion is circumferentially arranged, and is arranged at radian；Internal diameter of the inner end 200 along winding setting unit is circumferentially arranged, and
It is arranged at radian.Outer end, inner end and winding setting unit are same entirety；Constitute the same layer of pcb board.
Preferably, comprising: multiple outer end conductors 24,26 etc., and every group of outer end conductor are respectively provided on every group of outer end 3
Number is equal；It is respectively provided on inner end described in every group on multiple inner end conductors 23,22 etc. and inner end described in adjacent two groups
The inner end conductor number of setting differs.Such as inner end 100 and 200 in dotted line frame；There are 3 inner ends in inner end 100
Conductor has 2 inner end conductors in inner end 200.Since in the present invention, winding carries out the initial position of coil windings not
Together, therefore, then the number setting of adjacent inner end portion conductor is differed.
In the present invention, one embodiment of winding coil arrangement is additionally provided；With reference to shown in Fig. 2；The outer end conductor
Both ends be separately connected two different conductors in the winding setting unit；The both ends of the inner end conductor are separately connected institute
State two conductors in winding setting unit.
Preferably, comprising: the winding setting unit of every layer of the pcb board is provided with multiple conductors, each described
One end of conductor is connected with the outer end conductor, and the other end is connected with the inner end conductor；Multiple conductors pass through equal
Corresponding multiple outer end conductors are connected with multiple inner end conductor correspondences, constitute the winding wire of same phase
Circle.
Specifically, with reference to shown in Fig. 2-3；Connecting terminal A-Outer end conductor 27 starts to be wound wiring；It leads outer end
Two different conductors 130 and 115 that the both ends of body 28 are separately connected in the winding setting unit；The inner end conductor 22
Both ends are separately connected two conductors 205 and 194 in the winding setting unit.Then it is equivalent to a conducting wire one end and outer end one
End is connected, and the other end is connected with inner end.
Preferably, comprising: the winding coil printed in the winding setting unit of every layer of the pcb board according to around
The number of phases of group is different, is successively staggered.
Preferably, comprising: the conductor of the composition winding coil of the same phase of the same layer of the pcb board is in non-concentric
Helical form connection.
The not single ceoncentrically wound coil of coil group in stator plate winding is constituted, and every conductor and nearest is therewith led
Body connection, it is relatively short to allow for end in this way, and loss reduces, and output performance is improved.
Preferably, comprising: the internal diameter and outer diameter upper edge of the winding setting unit, each via hole is arranged in the via hole
It is separately positioned on the both ends of the conductor；For connecting the conductor of same opposite position.
Preferably, comprising: the conductor in the winding setting unit of the same layer of the pcb board is in parallel and/or goes here and there
Connection.
The conductor of the same phase of composition on the same layer of PCB, it is non-conterminous for after series arrangement, then the structure with adjacent layer
Pass through via hole parallel connection at the conductor of same phase；It also can also include the out of phase conductor of composition on the same layer of PCB be simultaneously
Connection.
Preferably, comprising: the pcb board is round setting.
In the present invention, the embodiment of winding coil winding；Fig. 1 is the winding schematic three dimensional views of stator plate A phase and B phase, is
Convenient for seeing the details of winding connection, A, the winding of B two-phase are shown only in Fig. 1, every phase is made of several layers coil, often
The coil of layer is made of several active conductors 13 and several interior outer ends 16 and 15, wherein connection between layers passes through via hole
14 link together.Wherein 1,2,3,4,5,6 be B-, B+, A+, A-, C-, the connecting terminal of C+ respectively.By taking A phase as an example, Fig. 2 is
The distribution schematic diagram of A phase upper layer winding, Fig. 3 are the distribution schematic diagrams of A phase lower layer winding.Electric current is flowed by A phase anode 3, is passed through
Outer end conductor 20 enters active conductor 205, flows into active conductor 194 by inner end 22, leaves A by via hole 21A later
Phase winding upper layer enters A phase winding lower layer, flows into active conductor 206 by outer end conductor 30, flows by inner end conductor 31
Enter active conductor 193, flow into active conductor 207 using outer end conductor 32, flows into active conductor by inner end conductor 33
192, it flows through outer end conductor 34 and enters active conductor 178, enter active conductor 191 by inner end conductor 37, by outer end
Portion's conductor 35 enters active conductor 179, flows through outer end conductor 36 and enters active conductor 190, forms winding coil 1.According to phase
Same connection type, active conductor 175,164,176,163,177,162,148,161,149,160 are in turn connected to form winding
Coil 2.Active conductor 145,134,146,133,147,132,118,131,119,130 is in turn connected to form winding coil 3.Have
Effect conductor 115,104,116,103,117,102,208,101,209,100 is in turn connected to form winding coil 4.Similarly A, B phase
Active conductor connection is respectively formed A phase and B phase winding.
In the present invention, the active conductor of each layer same position is connected in parallel by via hole, can be increased conducting electric current, be subtracted
Small winding resistance.The wider each conductor for being used to connect coil group of winding overhang.Each coil of winding be it is whole away from, compared to
The effective rate of utilization of non-overlap concentratred winding, stator increases, and under identical air gap flux density, unloaded back-emf can be more
Greatly.Distributed winding can make full use of the space under permanent magnet, chording factor 1, around system compared to non-overlap concentratred winding
Number improves, and output performance can increase, and the whole copper loss of winding is lower, and corresponding efficiency and power density can improve.
In the present invention, the via hole for connecting active conductor can beat several holes with radially more along active conductor circumferential direction, so as to
Bigger electric current is connected.
In the present invention, the not single ceoncentrically wound coil of coil group in stator plate winding is constituted, every conductor and
Nearest conductor connection therewith, allows for that end is relatively short, and loss reduces in this way, and output performance is improved.And make
The space of stator plate makes full use of, while also reducing the stator even volume of motor.The high occasion of space requirement have compared with
Big advantage.
It should be noted that above-described embodiment can be freely combined as needed.The above is only preferred implementations of the invention
Mode, it is noted that for those skilled in the art, without departing from the principle of the present invention, also
Several improvements and modifications can be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (10)
1. a kind of stator structure based on disc-type permanent magnet motor winding characterized by comprising at least 6 layers or 6N layers of PCB
Plate and Hall sensor；
Multiple groups outer end, winding setting unit and multiple groups inner end are provided on every layer of the pcb board；
Three-phase windings are at least arranged in each layer on the pcb board, and winding described in each phase is correspondingly arranged two wiring respectively
End；The terminals are arranged on the outer end；
Each phase winding coil carries out printing arrangement from the corresponding outer end；
The winding coil is circumferentially uniformly printed on the winding setting unit, and the length of the winding coil is radially arranged side by side
Arrangement printing, and laid out in parallel and do not overlap；
The winding coil described in every layer of the pcb board upper same phase being arranged pass through the outer end and and the inner end into
Row connection；
The Hall sensor is angled to be arranged on the outer end；
Each layer is connected by via hole in the pcb board.
2. the stator structure according to claim 1 based on disc-type permanent magnet motor winding characterized by comprising described
Outer diameter of the outer end along the winding setting unit is circumferentially arranged, and is arranged at radian；The inner end is set along the winding
The internal diameter for setting portion is circumferentially arranged, and is arranged at radian.
3. the stator structure according to claim 2 based on disc-type permanent magnet motor winding characterized by comprising every group
Multiple outer end conductors are respectively provided on the outer end, and every group of outer end conductor number is equal；
Multiple inner end conductors, and the inner end being arranged on inner end described in adjacent two groups are respectively provided on inner end described in every group
Conductor number differs.
4. the stator structure according to claim 3 based on disc-type permanent magnet motor winding characterized by comprising described
The both ends of outer end conductor are separately connected two different conductors in the winding setting unit；
The both ends of the inner end conductor are separately connected two conductors in the winding setting unit.
5. the stator structure according to claim 4 based on disc-type permanent magnet motor winding characterized by comprising described
The winding setting unit of every layer of pcb board is provided with multiple conductors, and one end and the outer end of each conductor are led
Body is connected, and the other end is connected with the inner end conductor；Multiple conductors are led by corresponding multiple outer ends
Body is connected with multiple inner end conductor correspondences, constitutes the winding coil of same phase.
6. the stator structure according to claim 5 based on disc-type permanent magnet motor winding characterized by comprising in institute
It is different according to the number of phases of winding to state the winding coil printed in the winding setting unit of every layer of pcb board, is successively handed over
Mistake arrangement.
7. the stator structure according to claim 6 based on disc-type permanent magnet motor winding characterized by comprising described
The conductor of the composition winding coil of the same phase of the same layer of pcb board is connected in nonconcentric(al) helical form.
8. according to any stator structure based on disc-type permanent magnet motor winding of claim 4-7, which is characterized in that packet
It includes:
The internal diameter and outer diameter upper edge of the winding setting unit is arranged in the via hole, and each via hole is separately positioned on described lead
On the both ends of body；
For connecting the conductor of same opposite position.
9. the stator structure according to claim 8 based on disc-type permanent magnet motor winding characterized by comprising described
The conductor in the winding setting unit of the same layer of pcb board is in parallel, and/or series connection.
10. the stator structure according to claim 9 based on disc-type permanent magnet motor winding characterized by comprising described
Pcb board is round setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910143516.4A CN109842229A (en) | 2019-02-27 | 2019-02-27 | A kind of stator structure based on disc-type permanent magnet motor winding |
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| CN201910143516.4A CN109842229A (en) | 2019-02-27 | 2019-02-27 | A kind of stator structure based on disc-type permanent magnet motor winding |
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Cited By (3)
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| CN114362411A (en) * | 2022-01-17 | 2022-04-15 | 哈尔滨工业大学 | Outer rotor type motor winding tandem device with adjustable connection sequence |
| CN114915129A (en) * | 2019-11-11 | 2022-08-16 | 英菲尼顿电气有限公司 | Stator with thermal traces |
| WO2023022751A1 (en) * | 2021-08-17 | 2023-02-23 | E-Circuit Motors, Inc. | Low-loss planar winding configurations for an axial flux machine |
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| CN114915129A (en) * | 2019-11-11 | 2022-08-16 | 英菲尼顿电气有限公司 | Stator with thermal traces |
| US12046966B2 (en) | 2019-11-11 | 2024-07-23 | Infinitum Electric Inc. | Axial field rotary energy device with PCB stator with thermal expansion capability |
| WO2023022751A1 (en) * | 2021-08-17 | 2023-02-23 | E-Circuit Motors, Inc. | Low-loss planar winding configurations for an axial flux machine |
| CN114362411A (en) * | 2022-01-17 | 2022-04-15 | 哈尔滨工业大学 | Outer rotor type motor winding tandem device with adjustable connection sequence |
| CN114362411B (en) * | 2022-01-17 | 2023-01-13 | 哈尔滨工业大学 | Outer rotor type motor winding tandem device with adjustable connection sequence |
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