CN104979931B - A kind of stator winding structure of brushless coreless disc-type permanent magnet motor and motor with the stator winding structure - Google Patents

A kind of stator winding structure of brushless coreless disc-type permanent magnet motor and motor with the stator winding structure Download PDF

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CN104979931B
CN104979931B CN201510466512.1A CN201510466512A CN104979931B CN 104979931 B CN104979931 B CN 104979931B CN 201510466512 A CN201510466512 A CN 201510466512A CN 104979931 B CN104979931 B CN 104979931B
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invalid edges
coil
magnet
edges
strafes
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CN104979931A (en
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吕周安
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Zhejiang Enjia Intelligent Technology Co ltd
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Priority to PCT/CN2016/072714 priority patent/WO2016124108A1/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/04Windings characterised by the conductor shape, form or construction, e.g. with bar conductors

Abstract

The present invention relates to a kind of brushless coreless disc-type permanent magnet motor and its interior stator winding structures.It includes 2 groups and is staggered and angle and successively laminates the unit coil group to form closed ring structure downwards along clockwise direction, constituent parts coil group includes 3 be staggered angle and the coils that laminate upwards in turn along clockwise direction, each coil includes that the interior of outer end in when magnet is strafed is strafed while and be connected to a pair or more of magnet, outer invalid edges, the magnet of each coil strafes edge circumference arranged radially and is distributed to form anchor ring, and all magnet strafes that side is in the same plane and height is consistent in winding, each coil it is interior, outer invalid edges mutually laminate to form the interior of lower convexity, outer overlapping portion.All magnet strafes that side is arranged to be in the same plane and height is consistent in winding, and the electromagnetic field utilization rate of the tankful rate and generation that make coil is higher, substantially increases the efficiency of motor, reduces the calorific value of motor stator.

Description

A kind of stator winding structure of brushless coreless disc-type permanent magnet motor and there is the stator The motor of winding construction
Technical field
The present invention relates to a kind of component of brushless coreless disc-type permanent magnet motor more particularly to the winding knots of the stator in it Structure and motor with the stator winding structure.
Background technique
Motor stator includes ribbon core motor and two kinds of iron-core less motor now.The motor stator of ribbon core be by iron core and The coil composition being wrapped on iron core, it is in irregular shape in the top end face of iron core and the coil sections of bottom face due to exposing, Generate any obstruction when rotor is installed in stator, i.e., rotor dress is not into or generating the operation of rotor is entered in installation It influences, in addition when stator is mounted on stator casing, these expose the part in irregular shape of iron core top end face and bottom face Coil also influences stator itself installation, therefore, will carry out trimming after stator covers carefully connect the wire every time.Iron-free cored structure by In iron-core-free, power of motor can only do very little, and iron-free cored structure is called injection molding or form structure, injection molding or form one As be that will be placed in mold around the coil made, injection molding or integral molding technique is perfused, using fixed made of this technique Sub- magnetic gap is bigger, and magnetic field power density utilization rate is low, so universal efficiency is also relatively low.Such as Chinese patent: " a discharge plate The new structure (CN02132315.1) of formula motor stator ", disc type stator is made of coil windings, thermosetting material, coil around Group is solidificated in thermosetting material body, and coil windings are stacked simultaneously with the polygonal coil of one or more conducting wire coiling by several Mutually stagger several angles.But in the brushless coreless disc-type permanent magnet motor of three-phase, the coil windings in motor stator are extremely It needs 3 pairs of lead-out wires less to connect and could work normally with external circuit, therefore, coil windings need 3 positive integer times Coil overlapping could use, especially biggish in the power for needing motor since each coil itself has certain thickness In the case of, then need the coil of more number to be overlapped or increased the coiling circle number of single coil to realize, so that overlapping The thickness of the coil windings of formation is larger, so that the volume for the stator produced is larger, increases the volume of motor.Together When, at work, the two sides rotation of stator is arranged in rotor to motor, and that motor can utilize when working is the effective of each coil Section strafes magnetic field caused by side with magnet steel corresponding part, that is, magnet on rotor, due to each coil and rotor in coil windings Usually disposed in parallel, therefore, magnetic field caused by the coil far from rotor can become weaker when reaching rotor, so that motor Magnetic utilization rate it is lower, the Motor torque produced is small, and due between each coil in coil windings and the rotor of two sides Distance has differences, and technical staff is difficult accurately to design the actually required watt level of motor.In addition, since overlapping is formed The single coil of coil windings is all the ring structure of plane, i.e., it is equal to strafe side for the inside and outside invalid edges of coil and magnet, therefore The coil windings formed are overlapped after being molded into stator, the outer edge portion of coil windings can not be with the inside and outside convex shaped of stator Shape cooperation, so that the structural strength for the stator being molded into is lower.Just because of the presence of these above-mentioned defects, so that existing nothing Brush coreless disc type magneto cannot achieve the production application of heavy-duty motor.
Summary of the invention
Side is strafed the present invention provides a kind of magnet of each coil to be in the same plane and the consistent brushless iron-free of height The stator winding structure of core disc-type permanent magnet motor, so that the motor volume produced is smaller, the utilization rate in magnetic field is high, the function of motor Rate can careful design according to actual needs;Solve brushless coreless disc-type permanent magnet motor volume existing in the prior art compared with Greatly, the utilization rate in magnetic field is low and the power of motor is difficult to the technical problem of careful design etc..
The present invention additionally provides the inside and outside invalid edges of each coil a kind of simultaneously, and relatively corresponding magnet strafes side respectively The stator winding structure of bending while the brushless coreless disc-type permanent magnet motor being superimposed with each other up and down forms opposed magnet and strafes side The inside and outside overlapping portion of upper lower convexity and the inside and outside convex shape of stator cooperate, and solve brushless nothing existing in the prior art The low technical problem of the stator structure intensity of iron core disc-type permanent magnet motor.
Above-mentioned technical problem of the invention is solved by following technical proposals: a kind of brushless coreless desk permanent-magnet electricity The stator winding structure of machine, it is characterised in that: the winding include at least have 2 groups be staggered angle and along clockwise direction successively downwards Laminate the unit coil group to form closed ring structure, constituent parts coil group includes 3 angles and along clockwise direction of being staggered The coil laminated upwards in turn, each coil include that a pair or more of magnet is strafed while and is connected in when magnet is strafed Outer end makes the inside and outside invalid edges of coil composition closed ring structure, and the magnet of each coil strafes edge circumference arranged radially point Cloth forms anchor ring, and magnet all in winding strafes that side is in the same plane and height is consistent, the inside and outside nothing of each coil Effect bending setting while mutually laminating to form opposed magnet and strafe on side up and down when relatively corresponding magnet is strafed respectively The inside and outside overlapping portion of lower convexity.The present invention is mainly applied in the brushless coreless disc-type permanent magnet motor of three-phase, and the present invention is It is formed by pressing process, each coil is integrally formed, and the parameters such as shape power according to needed for motor of coil and torque are set Different polygonal coils and different magnetic field numbers of pole-pairs are counted into, all coils are first distributed into multiple groups, every 3 lines by 3 one group Circle is staggered angle and to be laminated to form one group of unit coil group along clockwise direction upwards in turn, then all unit coil groups according to Secondary be staggered and successively laminates to form closed ring structure angle downwards along clockwise direction, in pressing process, is strafed with magnet Based on side, using inside and outside invalid edges deformation will not be deformed to guarantee that each magnet strafes side, magnet is strafed side and will not be bent, thus Entanglement will not be occurred and weigh wounded by strafing when side is overlapped mutually pressing in magnet, to cause short circuit, according to above-mentioned laminated structure, be made Each coil inside and outside invalid edges laminate the inside and outside overlapping portion to be formed height it is smaller, in the inside and outside nothing for not weighing each coil wounded Under the premise of imitating side, minimum 3 times for the height in inside and outside overlapping portion being controlled in coil thickness.By in winding All magnet strafes that side is arranged to be in the same plane and height is consistent, and magnet strafes side and is equivalent to only one layer in winding Structure, the magnet of each coil strafe edge circumference arranged radially and are distributed to form anchor ring, therefore, with rotor engagement in use, Intensity is identical when the magnetic field that each pair of magnet in winding strafes side generation reaches two sides rotor, realizes that magnet magnet strafes side Strafe area maximization, thus make coil tankful rate and generation electromagnetic field utilization rate it is higher, substantially increase motor Efficiency reduces the calorific value of motor stator, the service life of the motor further increased;The inside and outside invalid edges of each coil point Relatively not corresponding magnet is strafed in bending setting up and down while mutually laminating to form lower convexity on when opposed magnet is strafed Inside and outside overlapping portion, therefore, the winding construction of formation is mutually fitted with the structure of stator, and inside and outside overlapping portion is as stator inside and outside The stator of forming skeleton, injection molding or form has preferable intensity;Each magnet in the present invention strafes side and is in same flat In face and height is consistent, the height in inside and outside overlapping portion be also far smaller than existing multiple coils it is flat it is folded made of thickness, therefore, The thickness for the stator produced using the present invention is substantially reduced, and powerful brushless coreless disc-type permanent magnet motor may be implemented Batch production and application;It is folded simultaneously as the relatively corresponding magnet of the outer invalid edges of each coil is strafed after side is bent up and down Swaging is at outer overlapping portion, and therefore, the outer diameter for laminating the winding to be formed further reduces, and is conducive to reduce utilizing its manufactured stator And the volume of corresponding motor, the relatively corresponding magnet of the interior invalid edges of each coil are strafed after side is bent up and down and laminate to be formed Interior overlapping portion, increases the internal diameter of winding, leaves greater room to the inner hole of motor stator, increases and be threaded through stator inner hole In main axe intensity, enhance the stability of rotor.
Preferably, it is straightway that the magnet, which strafes side,.Magnet strafe side be stator coil with rotor engagement work Effective section of part when making, magnet strafe side and are set as generated magnetic field strength maximum when straightway, is conducive to improve motor Power.
Preferably, being folded between adjacent windings between adjacent unit coil group in the angle overlapped and unit coil group The angle of conjunction is identical, and the angle overlapped between the adjacent windings in unit coil group is that every a pair of magnet strafes side certainly on coil The 1/3 of body angle.Therefore, the adjacent magnets two-by-two in winding strafe side formation angle be it is identical, each magnet strafes Bian Qi Arrange it is radial in the anchor ring formed be uniformly distributed, it is identical that each magnet strafes the gap between side, greatly ensure around The whole consistency of group, the area of strafing that magnet strafes side maximize, to make the tankful rate of winding and the electromagnetic field benefit of generation It is higher with rate, so that the power of motor can careful design according to actual needs.
Preferably, the coil for including in the unit coil group is followed successively by first coil, the second coil from lower to upper And tertiary coil, the outer invalid edges in first coil correspond to the first outer invalid edges, the interior invalid edges in first coil correspond to Invalid edges in first, invalid edges are that whole opposed magnet strafes side into recessed setting, third in the first outer invalid edges and first Outer invalid edges on coil correspond to the outer invalid edges of third, and the interior invalid edges on tertiary coil correspond to invalid edges in third, the Invalid edges are the outer invalid edges that whole opposed magnet strafes side at convex setting, on the second coil in three outer invalid edges and third The second outer invalid edges are corresponded to, the interior invalid edges on the second coil correspond to invalid edges in second, and the second outer invalid edges are equipped with Opposed magnet strafes the exterior protrusion of lower convexity and outer lower concave part on side respectively, and the exterior protrusion is laminated on invalid outside first Bian Shang, the outer invalid edges of third are laminated on outer lower concave part, and invalid edges are equipped with opposed magnet respectively to strafe side or more convex in second The internal projection portion and interior lower concave part, the internal projection portion risen are laminated in first in invalid edges, and invalid edges are laminated in third On interior lower concave part.First inside and outside invalid edges of first coil are set as opposed magnet and strafe side into recessed structure, the second line The second outer invalid edges on circle are equipped with opposed magnet respectively and strafe the exterior protrusion of lower convexity and outer lower concave part on side, in second Invalid edges be equipped with opposed magnet respectively strafe lower convexity on side internal projection portion and interior lower concave part, outside the third on tertiary coil Invalid edges are that whole opposed magnet strafes side into convex setting, first coil, the second coil and third in invalid edges and third Coil laminates upwards in turn, and the inside and outside invalid edges of 3 coils are respectively formed height and laminate, and ensure that the magnet in 3 coils is swept It is equal to penetrate side, meanwhile, when two unit coils are stacked pressure, the tertiary coil in first group of unit coil group is laminated on second group The top of first coil in unit coil group preferably realizes and laminates linking between unit coil group, so that constituent parts Magnet in coil group is strafed side and is in same plane, thus preferably realizes magnet all in winding and strafe side and be in Sustained height, so that each coil causes magnet to strafe the influence of crust deformation on side in compression moulding due to the deformation of inside and outside invalid edges It is smaller, it ensure that magnet strafes side keeping rectilinear form, the inside and outside nothing of each coil during compression moulding to the maximum extent Effect side is not easy to be subject to crushing during compression moulding.
Preferably, invalid edges are recessed arc section, the third in the first outer invalid edges and first Invalid edges are convex arc section in outer invalid edges and third, exterior protrusion in the outer invalid edges of described second and outer recessed Portion is arc-shaped and the two is in being smoothly connected, and the internal projection portion and interior lower concave part in described second in invalid edges are circular arc Shape and the two are in be smoothly connected.Invalid edges are set as recessed arc section in first outer invalid edges and first, since coil is general As made of the metal wires coiling such as strand copper wire so that the first inside and outside invalid edges the surface of forming process coil be not easy by It damages by pressure;Similarly, invalid edges are disposed as convex arc section, the evagination in the second outer invalid edges in the outer invalid edges of third and third The portion of rising and outer lower concave part are arc-shaped and the two is in being smoothly connected, and the internal projection portion and interior lower concave part in second in invalid edges are equal It is arc-shaped and the two in being smoothly connected, is conducive to the compression moulding of winding, improves the qualification rate in production.
Preferably, the structure of first coil and the structure of tertiary coil are setting symmetrical above and below, described second is invalid outside In to equal distribution between upper exterior protrusion and outer lower concave part are when corresponding two magnet is strafed, and exterior protrusion and outer recessed Portion is distributed along the angular bisector that corresponding two magnet strafes side at axial symmetry, internal projection portion in described second in invalid edges and interior Lower concave part is strafed between side in corresponding two magnet in equal distribution, and internal projection portion and interior lower concave part are swept along corresponding two magnet The angular bisector for penetrating side is distributed at axial symmetry.The structure of first coil and the structure of tertiary coil are setting symmetrical above and below, favorably In the quantity for reducing components, production cost is reduced, the exterior protrusion and outer lower concave part in the second outer invalid edges are corresponding two Magnet is strafed in equal distribution between side, i.e. exterior protrusion and outer lower concave part is strafed occupied by the circumferencial direction on side in two magnet Angle be it is identical, exterior protrusion and outer lower concave part are distributed along the angular bisector that corresponding two magnet strafes side at axial symmetry, i.e., outer The shape that lug boss is strafed along two magnet after 180 ° of the angular bisector overturning on side is identical with the shape of outer lower concave part, because This, the exterior protrusion in the second outer invalid edges is laminated in the outer invalid edges of recessed first, and the outer invalid edges of convex third laminate On the outer lower concave part of the second outer invalid edges, be advantageously implemented magnet strafe side its arrangement formed anchor ring in it is radial It is uniformly distributed, it is high to laminate the winding precision to be formed;Similarly with the structures of the second outer invalid edges, the internal projection in second in invalid edges Portion and interior lower concave part are strafed between side in corresponding two magnet in equal distribution, and internal projection portion and interior lower concave part are along corresponding two The angular bisector that magnet strafes side is distributed at axial symmetry, is conducive to laminate with the inside and outside invalid edges of first, tertiary coil, is improved and is produced The precision of product.
Preferably, the outer invalid edges of the first outer invalid edges, the second outer invalid edges and third are located at identical annulus On face, invalid edges in described first, invalid edges are located on identical anchor ring in invalid edges and third in second.First outer nothing Effect side, the second outer invalid edges and the outer invalid edges of third are located on identical anchor ring, so that manufactured stator outer diameter minimizes, have Conducive to reduce motor volume, meanwhile, manufactured motor at work, outside the first outer invalid edges, the second outer invalid edges and third Magnetic field caused by invalid edges is substantially invalid, and the magnetic interference for strafing side generation to magnet is less;Invalid edges, second in first Invalid edges are located on identical anchor ring in interior invalid edges and third, so that manufactured diameter of stator bore maximizes, it is strong to improve main shaft Degree, meanwhile, the magnetic interference for strafing side generation to magnet is less, so that the motor accuracy designed is higher.
Preferably, the height in the inside and outside overlapping portion is that magnet strafes the three of the formed annulus face thickness in side respectively Again or more than three times.Due to laminating the outer invalid edges there are two different coils in the outer invalid edges of each coil, in order to Guarantee to damage by pressure when the outer invalid edges of each coil are not laminated because each magnet strafe while thickness and magnet strafe while institute's shape All be at annulus face thickness it is identical, need the height outer overlapping portion be set as magnet strafe while or magnet strafe while formed It is more than the three times or three times of annulus face thickness;Similarly, the height in interior overlapping portion is set as magnet and strafes the formed anchor ring thickness in side It is more than the three times or three times of degree.
A kind of brushless coreless disc-type permanent magnet motor includes stator and rotor, and the stator includes stator winding, It is characterized by: the stator winding is the winding construction of above-mentioned brushless coreless disc-type permanent magnet motor.Due to above-mentioned Winding construction has above-mentioned technical effect, and the brushless coreless disc-type permanent magnet motor with the winding construction is also having the same Technical effect.
Therefore, the stator winding structure of brushless coreless disc-type permanent magnet motor of the invention has following advantages: winding In all magnet strafe that side is arranged to be in the same plane and height is consistent, magnet strafes side and is equivalent to only one in winding Layer structure, the magnet of each coil strafe edge circumference arranged radially and are distributed to form anchor ring, realize that magnet magnet strafes sweeping for side Penetrate area maximization, thus make coil tankful rate and generation electromagnetic field utilization rate it is higher;The inside and outside invalid edges of each coil point Relatively not corresponding magnet is strafed in bending setting up and down while mutually laminating to form lower convexity on when opposed magnet is strafed Inside and outside overlapping portion, forming skeleton of the inside and outside overlapping portion as stator inside and outside, injection molding or form stator have compared with Good intensity;Each magnet strafes that side is in same plane and height is consistent, and the height in inside and outside overlapping portion is also far smaller than existing Multiple coils it is flat folded made of thickness, therefore, the thickness for the stator produced using the present invention is substantially reduced, and may be implemented big The batch production and application of the brushless coreless disc-type permanent magnet motor of power;The relatively corresponding magnetic of the outer invalid edges of each coil Iron sweep is penetrated after side is bent up and down and laminates to form outer overlapping portion, and the outer diameter for laminating the winding to be formed is further reduced, is made using it Stator and corresponding motor small volume, the relatively corresponding magnet of the interior invalid edges of each coil strafe side up and down bend After laminate to form interior overlapping portion, increase the internal diameter of winding, leave greater room to the inner hole of motor stator, increase and wear Main axe intensity in stator inner hole.
Detailed description of the invention
Fig. 1 is a schematic structural view of Embodiment 1 of the present invention;
Fig. 2 is the main view of Fig. 1;
Fig. 3 is the bottom view of Fig. 1;
Fig. 4 is the structural schematic diagram after embodiment 1 is decomposed;
Fig. 5 is the structural schematic diagram of unit coil group in embodiment 1;
Fig. 6 is the structural schematic diagram of first coil in embodiment 1;
Fig. 7 is the main view of Fig. 6;
Fig. 8 is the right view of Fig. 6;
Fig. 9 is the structural schematic diagram of the second coil in embodiment 1;
Figure 10 is the main view of Fig. 9;
Figure 11 is the right view of Fig. 9;
Figure 12 is the structural schematic diagram of tertiary coil in embodiment 1;
Figure 13 is the main view of Figure 12;
Figure 14 is the right view of Figure 12;
Figure 15 is the main view of embodiment 1 and magnetic steel of stator cooperation;
Figure 16 is the structural schematic diagram of magnetic steel of stator;
Figure 17 is a schematic structural view of Embodiment 2 of the present invention;
Figure 18 is the structural schematic diagram of first coil in embodiment 2;
Figure 19 is the main view of Figure 18;
Figure 20 is the structural schematic diagram of the second coil in embodiment 2;
Figure 21 is the structural schematic diagram of tertiary coil in embodiment 2.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solution to invention is described in further detail.
Embodiment 1: as Figure 1 and Figure 4, a kind of stator winding structure of brushless coreless disc-type permanent magnet motor, the winding Structure includes four groups and is staggered and angle and successively laminates the unit coil group to form closed ring structure downwards along clockwise direction 1, constituent parts coil group 1 includes 3 be staggered angle and the coils that laminate upwards in turn along clockwise direction, as shown in figure 5, This 3 coils are followed successively by first coil 11, the second coil 12 and tertiary coil 13 from lower to upper, and each coil includes a pair of of magnetic Iron sweep, which is penetrated, makes the inside and outside invalid edges of coil composition closed ring structure, each line with outer end in 2 when magnet is strafed is connected to while 2 The angle degree that two magnet of circle strafe side formation is identical setting.Outer nothing as shown in Fig. 6, Fig. 7, Fig. 8, in first coil 11 Effect side corresponds to the first outer invalid edges 111, and the interior invalid edges in first coil 11 correspond to invalid edges 112 in first, outside first Invalid edges 112 are that whole opposed magnet strafes side 2 into recessed setting in invalid edges 111 and first;Such as Figure 12, Figure 13, Figure 14 Shown, the outer invalid edges on tertiary coil 13 correspond to the outer invalid edges 131 of third, and the interior invalid edges on tertiary coil 13 correspond to Invalid edges 132 in third, invalid edges 132 are that whole opposed magnet strafes side 2 at convex in the outer invalid edges 131 of third and third Setting;As shown in Fig. 9, Figure 10, Figure 11, the outer invalid edges on the second coil 12 correspond to the second outer invalid edges 121, the second coil Interior invalid edges on 12 correspond to invalid edges 122 in second, and the second outer invalid edges 121 are equipped with opposed magnet respectively and strafe side 2 The exterior protrusion 121a of upper lower convexity and outer lower concave part 121b;As shown in Fig. 1, Fig. 3, Fig. 5, exterior protrusion 121a is laminated on first In outer invalid edges 111, the outer invalid edges 131 of third are laminated on outer lower concave part 121b, and invalid edges 122 are equipped with phase respectively in second The internal projection portion 122a and interior lower concave part 122b of lower convexity on side 2 are strafed to magnet, internal projection portion 122a is laminated on nothing in first It imitates on side 112, invalid edges 132 are laminated on interior lower concave part 122b in third.The first inside and outside invalid edges setting of first coil Side 2 is strafed into recessed structure for opposed magnet, and the second outer invalid edges on the second coil are equipped with opposed magnet respectively and strafe The exterior protrusion of lower convexity and outer lower concave part on side, invalid edges are equipped with opposed magnet respectively and strafe lower convexity on side in second Internal projection portion and interior lower concave part, invalid edges are that whole opposed magnet is strafed in the outer invalid edges of third and third on tertiary coil While first coil, the second coil and tertiary coil laminate upwards in turn at convex setting, the inside and outside invalid edges difference of 3 coils It forms height to laminate, it is equal to ensure that the magnet in 3 coils strafes side, meanwhile, when two unit coils are stacked pressure, first group Tertiary coil in unit coil group is laminated on the top of the first coil in second group of unit coil group, preferably realizes Linking is laminated between unit coil group, remaining unit coil group laminates mode by this and successively laminates, so that constituent parts coil group Interior magnet is strafed side and is in same plane, thus preferably realizes magnet all in winding and strafe side and be in same height Degree, so that the influence of crust deformation that each coil causes magnet to strafe side in compression moulding due to the deformation of inside and outside invalid edges is smaller, It ensure that magnet strafes side and keeps rectilinear form during compression moulding to the maximum extent, the inside and outside invalid edges of each coil exist It is not easy to be subject to crushing during compression moulding.The magnet of each coil strafes side and the cross sectional shape size of inside and outside invalid edges is Identical, as shown in Figure 2 and Figure 3, the magnet of each coil strafes side 2, and circumferentially arranged radially is distributed to form anchor ring, and institute in winding Some magnet strafes that side 2 is in the same plane and height is consistent, and the inside and outside invalid edges of each coil are relatively corresponding respectively Magnet strafes about 2 bending setting while mutually laminating to form on when opposed magnet is strafed the interior overlapping portion 3 of lower convexity and outside Overlapping portion 4.The present invention is mainly applied in the brushless coreless disc-type permanent magnet motor of three-phase, and the present invention is to pass through pressing process Molding, each coil is integrally formed, and the parameter designings such as shape power according to needed for motor of coil and torque are at different more All coils are first distributed into multiple groups by 3 one group by linea angulata circle and different magnetic field numbers of pole-pairs, every 3 coils be staggered angle and It laminates to form one group of unit coil group 1 upwards in turn along clockwise direction, then all unit coil groups are staggered successively angle And successively laminate to form closed ring structure downwards along clockwise direction, it in pressing process, is strafed based on side, is used with magnet Inside and outside invalid edges deformation will not be deformed to guarantee that each magnet strafes side, magnet is strafed side and will not be bent, to strafe in magnet It is weighed wounded while will not occur entanglement when being overlapped mutually pressing, to cause short circuit, according to above-mentioned laminated structure, so that each coil The height that inside and outside invalid edges laminate the inside and outside overlapping portion to be formed is smaller, in the premise for the inside and outside invalid edges for not weighing each coil wounded Under, minimum 3 times for the height in inside and outside overlapping portion being controlled in coil thickness.Certainly, the present invention can also be according to every The shape of a coil is compressed individually, then is overlapped together and formed.It is arranged to by the way that magnet all in winding is strafed side It is in the same plane and height is consistent, magnet, which strafes side and is equivalent to only one layer of structure, the magnet of each coil, in winding strafes Edge circumference arranged radially is distributed to form anchor ring, therefore, with rotor engagement in use, as shown in figure 15, it is every in winding Intensity is identical when reaching two sides rotor magnetic steel 5 to the magnetic field that magnet strafes side generation, realizes that magnet magnet strafes sweeping for side Penetrate area maximization, thus make coil tankful rate and generation electromagnetic field utilization rate it is higher, substantially increase the efficiency of motor, The calorific value for reducing motor stator further improves the service life of motor;The inside and outside invalid edges of each coil are opposite respectively Corresponding magnet is strafed in bending setting up and down while mutually laminating to form the inside and outside of lower convexity on when opposed magnet is strafed Overlapping portion, therefore, the winding construction of formation are mutually fitted with the structure of stator, molding bone of the inside and outside overlapping portion as stator inside and outside The stator of frame, injection molding or form has preferable intensity;Each magnet in the present invention strafe side be in same plane and Height is consistent, the height in inside and outside overlapping portion be also far smaller than existing multiple coils it is flat it is folded made of thickness, especially overlap Coil, therefore, the thickness for the stator produced using the present invention are substantially reduced, and powerful brushless coreless disc type may be implemented The batch production and application of magneto;Simultaneously as the relatively corresponding magnet of the outer invalid edges of each coil is strafed on side It laminates to form outer overlapping portion after lower bending, therefore, the outer diameter for laminating the winding to be formed further reduces, and is conducive to reduce utilizing it The volume of manufactured stator and corresponding motor, after the relatively corresponding magnet of the interior invalid edges of each coil strafes side or more bending It laminates to form interior overlapping portion, increases the internal diameter of winding, leave greater room to the inner hole of motor stator, increase and be threaded through Main axe intensity in stator inner hole.
Wherein, it is straightway that magnet, which strafes side 2,.It is that stator coil is effective when working with rotor engagement that magnet, which strafes side, Section part, effective section part can be arc line shaped or at dog-ear shapes, and still, magnet strafes side and is set as being produced when straightway Raw magnetic field strength is maximum, is conducive to the power for improving motor, meanwhile, the magnet of straightway strafes side processing most convenient.
The angle overlapped between adjacent windings between adjacent unit coil group 1 in the angle overlapped and unit coil group 1 Spend it is identical, and the angle overlapped between the adjacent windings in unit coil group 1 be coil on every a pair of magnet strafe side 2 itself folder The 1/3 of angle.As shown in Figure 1, Figure 2, Figure 5, the second coil 12 in unit coil group 1 is laminated in first coil 11, third Coil 13 is laminated on the second coil 12, and the inside and outside invalid edges of respective coil are formed to be laminated up and down, first coil 11, the second coil 12 strafe side formation with the magnet of tertiary coil 13 angle it is identical, and be that two magnet of first coil 11 itself strafe side folder The 1/3 of angle.The angle phase that the angle overlapped between adjacent unit coil group 1 is overlapped with first coil 11 and the second coil 12 Together.Therefore, the adjacent magnets two-by-two in winding strafe side 2 formation angle be it is identical, each magnet strafe side 2 its arrangement formed Anchor ring in it is radial be uniformly distributed, each magnet strafes that the gap between side is identical, greatly ensures that winding is whole Consistency, magnet strafe side strafe area maximization, thus make winding tankful rate and generation electromagnetic field utilization rate it is higher, So that the power of motor can careful design according to actual needs.
As shown in fig. 6, invalid edges 112 are recessed arc section in the first outer invalid edges 111 and first, such as Figure 12 institute Show, invalid edges 132 are convex arc section in the outer invalid edges 131 of third and third, as shown in figure 9, the second outer invalid edges 121 On exterior protrusion 121a and outer lower concave part 121b be arc-shaped and the two is in being smoothly connected, in second in invalid edges 122 Internal projection portion 122a and interior lower concave part 122b is arc-shaped and the two is in be smoothly connected.It is invalid in first outer invalid edges and first While be set as recessed arc section, since coil is generally as made of the metal wires coiling such as strand copper wire, so that the first inside and outside nothing Effect side is not easy to be subject to crushing on the surface of forming process coil;Similarly, invalid edges are disposed as in the outer invalid edges of third and third Convex arc section, exterior protrusion and outer lower concave part in the second outer invalid edges are arc-shaped and the two is in being smoothly connected, the Internal projection portion and interior lower concave part in two in invalid edges are arc-shaped and the two is in being smoothly connected, and are conducive to being pressed into for winding Type improves the qualification rate in production.
As shown in Fig. 6, Figure 12, the structure of first coil 11 and the structure of tertiary coil 13 are setting symmetrical above and below, such as Fig. 9 Shown, exterior protrusion 121a and outer lower concave part 121b in the second outer invalid edges 121 are strafed between side 2 in corresponding two magnet is in To equal distribution, and exterior protrusion 121a and outer lower concave part 121b strafe the angular bisector on side 2 into axial symmetry along corresponding two magnet It is distributed, it is in pair that the internal projection portion 122a and interior lower concave part 122b in second in invalid edges are strafed between side 2 in corresponding two magnet Equal distribution, and internal projection portion 122a and interior lower concave part 122b strafes the angular bisector on side 2 into axial symmetry point along corresponding two magnet Cloth.The structure of first coil and the structure of tertiary coil are setting symmetrical above and below, advantageously reduce the quantity of components, reduce life Cost is produced, the exterior protrusion and outer lower concave part in the second outer invalid edges 121 are strafed between side in corresponding two magnet in equal part Cloth, i.e. exterior protrusion and outer lower concave part two magnet strafe angle occupied by the circumferencial direction on side be it is identical, exterior protrusion and Outer lower concave part is distributed along the angular bisector that corresponding two magnet strafes side at axial symmetry, i.e., exterior protrusion strafes side along two magnet Shape after angular bisector overturns 180 ° is identical with the shape of outer lower concave part, therefore, the evagination in the second outer invalid edges The portion of rising is laminated in the outer invalid edges of recessed first, and the outer invalid edges of convex third are laminated on the outer lower concave part of the second outer invalid edges On, be advantageously implemented magnet strafe side its arrangement formed anchor ring in it is radial be uniformly distributed, laminate the winding to be formed Precision is high;Similarly with the structures of the second outer invalid edges, the internal projection portion and interior lower concave part in second in invalid edges are corresponding two Magnet is strafed between side in equal distribution, and internal projection portion and interior lower concave part along corresponding two magnet strafe the angular bisector on side at Axial symmetry distribution, is conducive to laminate with the inside and outside invalid edges of first, tertiary coil, improves the precision of product.
As shown in Fig. 2, Fig. 7, Figure 10, Figure 13, the outer invalid edges of the first outer invalid edges 111, the second outer invalid edges 121 and third 131 are located on identical anchor ring, and invalid edges 132 are located at phase in invalid edges 122 and third in invalid edges 112, second in first On same anchor ring.First outer invalid edges, the outer invalid edges of the second outer invalid edges and third are located on identical anchor ring, due to the The outer relatively respective magnet of invalid edges of one outer invalid edges, the second outer invalid edges and third is strafed side and is bent up and down, so that manufactured Stator outer diameter becomes smaller, and is conducive to the volume for reducing motor, when invalid edges phase outside the first outer invalid edges, the second outer invalid edges and third When strafing side or more 90-degree bent to respective magnet, the minimum outer diameter of manufactured stator.Meanwhile manufactured motor is at work, Magnetic field caused by the outer invalid edges of first outer invalid edges, the second outer invalid edges and third is substantially invalid, strafes side to magnet and produces Raw magnetic interference is less;Invalid edges in first, invalid edges 132 are located at identical anchor ring in invalid edges and third in second On, so that manufactured diameter of stator bore maximizes, main axe intensity is improved, meanwhile, the magnetic interference for strafing side generation to magnet is less, So that the motor accuracy designed is higher.
As shown in Figure 1, Figure 3, the height in inside and outside overlapping portion 3,4 is that magnet strafes the formed annulus face thickness in side 2 respectively It is more than three times or three times.Due to laminating the outer invalid edges there are two different coils in the outer invalid edges of each coil, be The outer invalid edges of each coil of guarantee are damaged by pressure when not laminated because each magnet strafe while thickness and magnet strafe while institute Formed annulus face thickness be all it is identical, need the height outer overlapping portion be set as magnet strafe while or magnet strafe while institute's shape More than the three times or three times of annulus face thickness;Similarly, the height in interior overlapping portion is set as magnet and strafes the formed anchor ring in side It is more than the three times or three times of thickness.
In addition to the stator winding structure of above-mentioned brushless coreless disc-type permanent magnet motor, the present invention also provides a kind of brushless Coreless disc type magneto includes stator and rotor, and stator includes stator winding, and stator winding is nothing described above The winding construction of brush coreless disc type magneto, refer to the prior art for remaining structure, and repeats no more herein.
Embodiment 2: as shown in figure 17, each coil includes that four pairs of magnet are strafed and 2 and are being connected in 2 when magnet is strafed Outer end makes the inside and outside invalid edges of coil composition closed ring structure, and the outer end that each pair of magnet strafes side is arranged in outer invalid edges Portion strafes the connection of side outer end to magnet for this, and the inner end that magnet strafes side is arranged in interior invalid edges, is used for adjacent magnetic Iron sweep penetrates the connection of side inner end, and 3 coils for strafing side with four pairs of magnet is only needed to overlap in the present embodiment, and this 3 Coil is followed successively by first coil 11, the second coil 12 and tertiary coil 13 from lower to upper, such as Figure 18, Figure 19, Figure 20, Tu21Suo Show, every a pair of magnet on first coil 11, the second coil 12 and tertiary coil 13 strafes the angle that side is formed and adjacent two pairs Magnet strafe that the angle between side is identical, the outer invalid edges in first coil 11 correspond to the first outer invalid edges 111, First Line Interior invalid edges on circle 11 correspond to invalid edges 112 in first, and invalid edges 112 are whole in the first outer invalid edges 111 and first Body opposed magnet strafes side 2 into recessed setting;Outer invalid edges on tertiary coil 13 correspond to the outer invalid edges 131 of third, third Interior invalid edges on coil 13 correspond to invalid edges 132 in third, and invalid edges 132 are in the outer invalid edges 131 of third and third Whole opposed magnet strafes side 2 into convex setting;Outer invalid edges on second coil 12 correspond to the second outer invalid edges 121, the Interior invalid edges on two coil 12 correspond to invalid edges 122 in second, and the second outer invalid edges 121 are equipped with opposed magnet respectively and sweep The exterior protrusion 121a and outer lower concave part 121b of lower convexity on side 2 are penetrated, invalid edges 122 are equipped with opposed magnet respectively and sweep in second Penetrate the internal projection portion 122a and interior lower concave part 122b of lower convexity on side 2;Rest part is same as Example 1.

Claims (6)

1. a kind of stator winding structure of brushless coreless disc-type permanent magnet motor, it is characterised in that: the winding, which includes at least, 2 groups It is staggered and angle and successively laminates the unit coil group to form closed ring structure, constituent parts coil group packet downwards along clockwise direction 3 be staggered angle and the coils that laminate upwards in turn along clockwise direction are included, each coil includes a pair or more of Outer end in when magnet is strafed is strafed while and be connected to magnet makes the inside and outside invalid edges of coil composition closed ring structure, each line The magnet of circle strafes edge circumference arranged radially and is distributed to form anchor ring, and magnet all in winding strafes side and is located at same put down In face and highly consistent, relatively corresponding magnet strafes side or more bending setting together to the inside and outside invalid edges of each coil respectively When mutually laminate to form the inside and outside overlapping portion that opposed magnet strafes lower convexity on side, the line for including in the unit coil group Circle is followed successively by first coil, the second coil and tertiary coil from lower to upper, and the outer invalid edges in first coil correspond to outside first Invalid edges, the interior invalid edges in first coil correspond to invalid edges in first, and invalid edges are in the first outer invalid edges and first Whole opposed magnet strafes side into recessed setting, and the outer invalid edges on tertiary coil correspond to the outer invalid edges of third, tertiary coil On interior invalid edges correspond to invalid edges in third, invalid edges are that whole opposed magnet is strafed in the outer invalid edges of third and third While the outer invalid edges on the second coil correspond to the second outer invalid edges at convex setting, the interior invalid edges on the second coil are corresponding For invalid edges in second, the second outer invalid edges are equipped with opposed magnet respectively and strafe on side the exterior protrusion of lower convexity and outer recessed Portion, the exterior protrusion are laminated in the first outer invalid edges, and the outer invalid edges of third are laminated on outer lower concave part, invalid in second While it is upper be equipped with that opposed magnet is strafed respectively while on lower convexity internal projection portion and interior lower concave part, the internal projection portion be laminated on the In one in invalid edges, invalid edges are laminated on interior lower concave part in third, and invalid edges are equal in the outer invalid edges of described first and first For recessed arc section, invalid edges are convex arc section in the outer invalid edges of the third and third, outside described second Exterior protrusion and outer lower concave part in invalid edges are arc-shaped and the two is in be smoothly connected, in described second in invalid edges Internal projection portion and interior lower concave part are arc-shaped and the two is in being smoothly connected, and the height in the inside and outside overlapping portion is magnetic respectively Iron sweep penetrates the three times or three times of the formed annulus face thickness in side or more.
2. a kind of stator winding structure of brushless coreless disc-type permanent magnet motor according to claim 1, it is characterised in that: It is straightway that the magnet, which strafes side,.
3. a kind of stator winding structure of brushless coreless disc-type permanent magnet motor according to claim 2, it is characterised in that: The angle overlapped between the angle overlapped between adjacent unit coil group and the adjacent windings in unit coil group is identical, and single The angle overlapped between adjacent windings in the coil group of position is that every a pair of magnet strafes the 1/3 of side itself angle on coil.
4. a kind of stator winding structure of brushless coreless disc-type permanent magnet motor according to claim 1, it is characterised in that: The structure of first coil and the structure of tertiary coil are setting symmetrical above and below, exterior protrusion in the second outer invalid edges and outside Lower concave part is strafed between side in corresponding two magnet in equal distribution, and exterior protrusion and outer lower concave part are swept along corresponding two magnet The angular bisector for penetrating side is distributed at axial symmetry, and the internal projection portion and interior lower concave part in described second in invalid edges are in corresponding two magnetic Iron sweep is penetrated between side in equal distribution, and internal projection portion and interior lower concave part strafe the angular bisector on side into axis along corresponding two magnet It is symmetrical.
5. a kind of stator winding structure of brushless coreless disc-type permanent magnet motor according to claim 1, it is characterised in that: The outer invalid edges of the outer invalid edges of described first, the second outer invalid edges and third are located on identical anchor ring, in described first Invalid edges, invalid edges are located on identical anchor ring in invalid edges and third in second.
6. a kind of brushless coreless disc-type permanent magnet motor includes stator and rotor, the stator includes stator winding, Be characterized in that: the stator winding is the stator of brushless coreless disc-type permanent magnet motor described in any one of claim 1 to 5 Winding construction.
CN201510466512.1A 2015-02-03 2015-07-31 A kind of stator winding structure of brushless coreless disc-type permanent magnet motor and motor with the stator winding structure Active CN104979931B (en)

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CN104638795A (en) * 2015-02-03 2015-05-20 吕周安 Stator winding structure of brushless coreless disk permanent magnetic motor and motor with the stator winding structure
CN106411012A (en) * 2015-07-14 2017-02-15 上海鸣志电器股份有限公司 Coreless winding of reducing distribution coefficient
CN105186748B (en) * 2015-07-31 2023-09-19 浙江鼎安机械制造有限公司 Stator winding structure of radial coreless permanent magnet motor and motor
CN108242860A (en) * 2016-12-27 2018-07-03 维尔纳(福建)电机有限公司 A kind of stator without iron core and motor
CN106849437A (en) * 2017-04-14 2017-06-13 厦门威而特动力科技有限公司 A kind of armature winding and radial magnetic field permanent magnet iron coreless synchronous motor
CN109586451A (en) * 2018-11-28 2019-04-05 华中科技大学 Axial magnetic flux iron-core-free winding, preparation process and the magneto with the winding
CN110011449B (en) * 2019-04-02 2022-07-12 上海大学 Ultrathin disc winding

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