CN101951106B - Ultrathin high-power direct current magnetoelectric motor - Google Patents
Ultrathin high-power direct current magnetoelectric motor Download PDFInfo
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- CN101951106B CN101951106B CN 201010247971 CN201010247971A CN101951106B CN 101951106 B CN101951106 B CN 101951106B CN 201010247971 CN201010247971 CN 201010247971 CN 201010247971 A CN201010247971 A CN 201010247971A CN 101951106 B CN101951106 B CN 101951106B
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Abstract
The invention discloses an ultrathin high-power direct current magnetoelectric motor, comprising a transmission shaft, a discal stator component sleeved at the middle section of the transmission shaft, discal rotor components which are respectively arranged at the two sides of the stator component and rotate with the transmission shaft, and an upper end cap and a lower end cap which are respectively arranged at the two sides of the rotor components. The stator component comprises a discal stator frame, a plurality of fan-shaped grooves which are arranged on the stator frame in a ring form, fan-shaped windings arranged in the fan-shaped grooves, and inner clamping rings and outer clamping ring for fixing the fan-shaped windings. The rotor component comprises a rotor plate fixedly connected with the transmission shaft, fan-shaped grooves which are arranged on the rotor plate in a ring form, and permanent magnets fixed in the grooves. The surface of the rotor plate, which provided with the permanent magnets, faces the fan-shaped windings. The motor of the invention has the advantages of higher efficiency and energy saving, and the manufacturing, the assembling and the maintenance of the stator winding are more simple, convenient and reliable.
Description
Technical field
The present invention relates to direct current machine, especially relate to a kind of ultra-thin powerful direct current permanent magnet motor.
Background technology
Ultra-thin electric machine is disc type electric machine, and the characteristics of this type of motor are: volume is little, lightweight, compact conformation, thinner, is again dish formula motor.Disc type electric machine is generally the structure of two rotor folder a slice stators.The structure of stator has two kinds, and a kind of is metal structure, and a kind of is iron-core-free structure (injection moulding or form structure).Metal structure generally is pressed into dish with the restriction radial flux by silicon steel sheet volume, and winding is fixed on the silicon steel sheet or in the groove.This structure, in motor operation course, two rotors produce powerful alternating magnetic field vertically, metal guide is known from experience at the very large short circuit current (being commonly called as " eddy current ") of inside formation, rotor is produced magnetic resistance and stator iron loss, cause the stator heating, so that motor power consumption increases greatly; The iron-core-free structure is owing to iron-core-free, and the power of motor can only be done very littlely.Injection moulding or form generally are that the coil that coiling is good is placed in the mould, and injection moulding or perfusion are integral the technique of moulding, and the stator field air gap that adopts this technique to make is larger, and the magnetic field power density utilance is low, so general Energy Efficiency Ratio is also lower.This kind moulding process is unreasonable in addition, and operating cost is high, and production efficiency is extremely low, and maintenanceability is poor, and when the coil in the motor had one group to damage, whole motor stator must be scrapped.Such as: adopt the epoxy resin pouring and forming process, a mould once goes out a product, and heating-up temperature is about 100 ℃～160 ℃, and the shaping and drying time is 8～10 hours, and production efficiency is extremely low.
Summary of the invention
The objective of the invention is that existing disk type electric machine stator winding moulding process is unreasonable in order to solve, iron-core less motor power can not be done greatly, break through the limitation that existing iron-core-free disc motor power can only be done very littlely, provide a kind of more efficient, energy-conservation, more simply and easily ultrathin high-power direct current magnetoelectric motor is made, assembles, keeped in repair to stator winding.
For solving the problems of the technologies described above, the ultrathin high-power direct current magnetoelectric motor that the present invention proposes, is located at the upper and lower end cap on the power transmission shaft of being placed in of these rotor part both sides respectively at the disc-like rotor parts that together rotate with described power transmission shaft that it comprises power transmission shaft, be placed in the stator component of the plate-like in this power transmission shaft stage casing, be located at respectively these stator component both sides.Stator component comprises: the stator frame of plate-like, annular be located at a plurality of fan grooves on this stator frame, be located at fan-shaped winding in this fan groove, fix the inside and outside trim ring of this fan-shaped winding.Rotor part comprises: the rotor disk that is fixedly connected with power transmission shaft, be located at annular groove on this rotor disk, be fixed in the permanent magnet in this groove, be provided with the surface of rotor disk of permanent magnet towards described fan-shaped winding.
More excellent, the inner ring of described stator frame can be fixedly connected with the outer ring of pair of bearings, and this inner ring to bearing is tightly placed in the stage casing of described power transmission shaft.
More excellent, can also between the outer ring of the inner ring of stator frame and pair of bearings, be provided with a bearing pedestal, namely the inner ring of stator frame is connected with this bearing pedestal cylindrical, and this is located in the endoporus of this bearing pedestal bearing.
Wherein, described fan groove is groove, and the external arc of this fan groove and interior circular arc respectively are provided with one for the block reinforcement of holding fan-shaped winding.
End play along described power transmission shaft between described fan-shaped winding and the permanent magnet is 0.1～0.8mm.Perhaps larger, specifically decide on designing requirement.
The another kind of scheme that the present invention proposes: the ultrathin high-power direct current magnetoelectric motor that a kind of power transmission shaft does not turn, it comprises power transmission shaft, be fixedly connected on the stator component of the plate-like in this power transmission shaft stage casing, be located at respectively the disc-like rotor parts of these stator component both sides; Stator component comprises: the stator frame of the plate-like that is fixedly connected with described power transmission shaft, annular be located at a plurality of fan grooves on this stator frame, be located at fan-shaped winding in this fan groove, fix the inside and outside trim ring of this fan-shaped winding.Rotor part comprises: rotor disk, the annular that is connected with described power transmission shaft by a rolling bearing is located at groove on this rotor disk, is fixed in the permanent magnet in this groove, is provided with the surface of rotor disk of permanent magnet towards described fan-shaped winding.
Stator of the present invention adopts the iron-core-free structure, and the stator that solves existing product fully is subjected to axial action of alternating magnetic field, produces the problem of the iron loss of eddy-current heating and stator itself, so that the efficient of motor is higher.Be located at the fan-shaped winding in the stator frame groove, can by flat conductor, round conductor or other wire one coiling forms or multiple-layer stacked combines.Compare round conductor, the winding that adopts flat enamelled wire to make, the wire of winding is shorter, and resistance is less, and copper loss is less, and the efficient of motor is higher.Adopt the thread fan-shaped winding of flat enamel-cover, can realize that the wire gapless is together multilaminate coiled, make the space of winding obtain 100% utilization, the winding space of stator is also rationally utilized.Winding adopts the method that is realized the multiple-layer stacked combination by single layer winding simultaneously, so that the power of motor can do more, breaks through the limitation that existing iron-core-free disc motor power can only be done very littlely.If in the situation that power of motor is consistent, the volume of motor of the present invention can do littlely, thinner.Stator winding moulding process provided by the invention is more reasonable, and assembling, maintenance are simpler, reliable, and production efficiency is higher, solves the existing irrational problem of stator winding moulding process fully.Simultaneously the present invention also is applicable to the structure of many rotors and multiple stators.And the advantages such as volume is little because motor of the present invention possesses, compact conformation, efficient is high, power is large, the assembling maintenance is simpler and easy, reliable are specially adapted to the new energy fields such as wind power generation, electric motor car.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail, wherein:
Fig. 1 is the explosive view of preferred embodiment of the present invention;
Fig. 2 be preferred embodiment of the present invention profile;
Fig. 3 be another embodiment of the present invention profile;
Fig. 4 is the schematic diagram of the good flat enamelled wire single layer winding of coiling;
Fig. 5 is the schematic diagram of the flat enamelled wire winding of stack;
Fig. 6 is that winding is placed on the schematic diagram on the stator frame;
To be inside and outside trim ring be pressed on schematic diagram on the stator frame with winding to Fig. 7.
Embodiment
As shown in Figure 1 and Figure 2, basic structure for preferred embodiment of the present invention, this ultrathin high-power direct current magnetoelectric motor, comprise power transmission shaft 8, be placed in the stator component of the plate-like in these power transmission shaft 8 stage casings, be located at respectively the disc-like rotor parts that can together rotate with power transmission shaft 8 of these upper and lower both sides of stator component, respectively with upper end cover 11 and the bottom end cover 5 of this stator component and rotor part encapsulation, and upper end cover 11 is connected with bottom end cover and is connected with power transmission shaft 8 by a rolling bearing 7 separately.Wherein, stator component comprises: discoid stator frame 1, annular is located at nine fan grooves 16 on this stator frame 1 (quantity of fan groove can also be selected as required, as long as evenly distributed), be located at this fan groove 16 interior fan-shaped winding 2, the interior trim ring 10 of fixing this fan-shaped winding 2 and outer trim ring 12.Rotor part comprises: the round rotor dish 4 that is fixedly connected with power transmission shaft 8, rib 14, the annular of radially being located at rotor disk 4 outer surfaces are located at groove on this rotor disk 4, are fixed in the permanent magnet 3 in this groove, are provided with the fan-shaped winding 2 of surface in stator of the rotor disk 4 of permanent magnet 3.In the present embodiment, the inner ring of stator frame 1 is connected by the outward flange of bolt with a bearing pedestal 6, has pair of bearings 9 to be located in the endoporus of this bearing pedestal 6, and this inner ring to bearing 9 is tightly placed on the stage casing of power transmission shaft 8.Also can not want bearing pedestal 6, the inner ring of stator frame 1 directly is fixedly connected with this outer ring to bearing 9, and this inner ring to bearing 9 is tightly placed in the stage casing of power transmission shaft 8.
The present invention can also be designed to the ultrathin high-power direct current magnetoelectric motor that a kind of power transmission shaft 8 does not rotate, as shown in Figure 3, it comprises power transmission shaft 8, is fixedly connected on the stator component of the plate-like in these power transmission shaft 8 stage casings, is located at respectively the disc-like rotor parts of these stator component both sides; Stator component comprises: the discoid stator frame 1 that is fixedly connected with power transmission shaft 8, annular are located at a plurality of fan grooves on this stator frame 1, are located at fan-shaped winding 2, the interior trim ring 10 of fixing this fan-shaped winding 2 and outer trim ring 12 in this fan groove.Rotor part comprises: round rotor dish 4, the annular that is connected with power transmission shaft 8 by a rolling bearing 15 is located at groove on this rotor disk 4, is fixed in the permanent magnet 3 in this groove, is provided with the fan-shaped winding 2 of surface in stator of the rotor disk 4 of permanent magnet 3.The motor of this kind structure does not arrange upper and lower end cap, and power transmission shaft 8 does not rotate during work, but passes through the rotation outputting power of rotor disk 4.
As shown in Figure 1 and Figure 2, stator frame 1 is by high strength, high rigidity, heat-resisting, anti-punching resistance, aging-resistant engineering plastics precision injection molding.Fan groove 16 is groove, the external arc of this fan groove and interior circular arc respectively are provided with a block reinforcement 13, be used for holding fan-shaped winding 2, it can not fallen down on stator frame 1, see also Fig. 6, Fig. 7, after fan-shaped winding 2 is all loaded onto stator frame 1, with interior trim ring 10 and outer trim ring 12 fan-shaped winding and stator frame 1 are tightly forced together, and when having a certain group of coil to damage in the stator winding, only need pull down inside and outside trim ring, can conveniently change maintenance.Inside and outside trim ring high strength, high rigidity, heat-resisting, shock-resistant, aging-resistant engineering plastics precise injection molding type.Fan groove is arranged to through-hole structure, and throughhole portions can make fan-shaped winding 2 draw closer together with permanent magnet 3, and air gap between the two is less, and the efficient of motor is just higher.Can accomplish 0.1～0.8mm along the end play of described power transmission shaft 8 between the fan-shaped winding 2 of the present invention and the permanent magnet 3, namely minimum clearance can be accomplished 0.1mm.The air gap of this structure is unlike with epoxy resin or injection moulding integrated molding, because the winding outer surface is all encased by epoxy resin or plastic rubber material, cause the air gap of permanent magnet and winding will do very greatly, general 1～2mm or larger, so that the power density in magnetic field reduces, efficient reduces too greatly.The profile of stator frame 1 can be circular, square or other shape, specifically decides according to different use occasions.Owing to having adopted the stator frame of non-metal conductor, during electric machine rotation, stator frame 1 not can because of axial alternating magnetic field at stator frame 1 interior generation induced current, both eliminated the iron loss to magnetic resistance and the stator of rotor, thoroughly eliminated again the pyrotoxin of iron loss, when the loss of motor is reduced greatly during work temperature lower.The present invention only needs just whole stator component assembling to be finished within short a few minutes, and tool labour intensity is low, packaging technology is reliable, simple, production efficiency is high, can be easy to maintenance etc. advantage.Adopt stator structure of the present invention, solved fully that the conventional motors stator adopts epoxy resin with winding or injection moulding integrated molding technique is unreasonable, molding time is long, production efficiency is low, the problem such as maintenanceability not.
As shown in Figure 1 and Figure 2, rotor disk 4 is by metal material (iron, steel, powder metallurgy etc.) the microdiecast moulding of magnetic conduction, can be according to evenly distributed several the fan-shaped grooves of designing requirement on the rotor disk, also can make whole ring groove, the permanent magnet 3 of respective slot shape, is fixed in the groove the N utmost point and the combination of the S utmost point by some.Because rotor disk 4 adopts the metal material of magnetic conduction to make, and fluted location, after permanent magnet 3 is placed on groove, because fluted and magneticaction, permanent magnet 3 and rotor disk 4 can be fixed together on request accurately, make the permanent magnet mounting process simpler, assemble simpler and easy, reliable.In addition rotor disk 4 can according to the needs of motor heat radiation itself outside radial surface set up many ribs 14, when rotor rotates, this rib 14 can dispel the heat to motor as fan blade, takes the heat in the motor out of the motor outside by the louvre 17 of upper end cover 11 and bottom end cover 5.
As shown in Figure 4, the fan-shaped winding 2 of the flat enamelled wire of individual layer that performs for coiling of the present invention.Owing to adopting flat enamelled wire so that coiling can realize that gapless is together multilaminate coiled.And round wire is because the gap inevitably appears in the geometry of the cross section of wire rod own, the spatial joint clearance that is winding nearly 10% can not utilize, and adopt the flat wire can be with the utilization in the space 100% of winding, make the volume of winding can do littlely or the big or small constant situation of winding under, the power of motor does more.Because the wire rod of winding is wound on together closely, there is not the air gap in addition, so that winding possesses higher heat-sinking capability, can increases the electric current that winding passes through, so that the power of motor can further strengthen.Break the limitation that existing iron-core less motor power can only be done very littlely, rationally utilize the space, reasonably moulding, packaging technology economize on resources, and this is that existing iron-core less motor is not available.Such as the motor of a 1KW, the overall size of motor is maximum only need accomplish about 250mm, and generally in 20～30mm, different according to the watt level of motor, the thinnest 10mm that can accomplish of the thickness of motor is with interior even thinner for thickness.
For improving the utilance in motor stator winding space, the spy becomes fan-shaped with Winding Design, and with respect to traditional circular winding, the space utilization of fan-shaped winding improves more than 20%～30%.Fan-shaped winding 2 forms through special Winder coiling, can first coiling single layer winding, 2,4,6 be superimposed to form fan-shaped winding 2 of the present invention by multilayer (even level:, 8......N) single layer winding again.Just winding is directly turned to the method that is superimposed in the time of also can adopting coiling, just with respect to the method that superposes after the individual layer coiling, technique more complicated during latter's coiling, poor operability, making is longer man-hour.Owing to using flat enamelled wire instead, technique for coiling is simpler, and the winding surface that coiling is good is more smooth.For follow-up multiple-layer stacked provides favourable condition.After the single layer winding coiling is good, only need coat fixing glue on the surface of a winding A1, another one winding A2 is overlaped with winding A1 on request, and the binding post at A1, two winding centers of A2 linked together get final product.Adopt technique and the bilayer of multiple-layer stacked winding to be more or less the same around the technique of stack, just the number of plies is different.As shown in Figure 5, the winding schematic diagram that superposes for bilayer.
Structure of the present invention and technique, be equally applicable to brush and brushless generator, be that generator adopts structure of the present invention, when rotor disk is rotated by External Force Acting, the magnetic line of force in the magnetic field that sector (-shaped) coil side wire perpendicular cuts permanent magnet produces, in stator winding, produce induced electromotive force, cooperate the alternating current output device, thereby obtain a kind of high-power, high efficiency generator.Also applicable all machine fields, particularly wind power generation, electric motor car etc.
The embodiment that the above only designs for the present invention not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. ultrathin high-power direct current magnetoelectric motor, comprise power transmission shaft (8), be placed in the stator component of the plate-like in this power transmission shaft (8) stage casing, the disc-like rotor parts that together rotate with described power transmission shaft (8) of being located at respectively these stator component both sides, be located at respectively the upper of these rotor part both sides, bottom end cover (11,5), it is characterized in that, described stator component comprises: the stator frame of plate-like (1), annular are located at a plurality of fan grooves on this stator frame (1), be located at the fan-shaped winding (2) in this fan groove, in fixing this fan-shaped winding (2), outer trim ring (10,12); Described rotor part comprises: rotor disk (4), the annular that is fixedly connected with power transmission shaft (8) is located at groove on this rotor disk (4), is fixed in the permanent magnet (3) in this groove, is provided with the surface of rotor disk of permanent magnet (3) towards described fan-shaped winding (2); Described fan groove is groove, and the external arc of this fan groove and interior circular arc respectively are provided with a block reinforcement (13) that is used for holding fan-shaped winding (2).
2. ultrathin high-power direct current magnetoelectric motor as claimed in claim 1, it is characterized in that, the inner ring of described stator frame (1) is fixedly connected with the outer ring of pair of bearings (9), and this inner ring to bearing (9) is tightly placed in the stage casing of described power transmission shaft (8).
3. ultrathin high-power direct current magnetoelectric motor as claimed in claim 2, it is characterized in that, also be provided with a bearing pedestal (6) between the outer ring of the inner ring of described stator frame (1) and described pair of bearings (9), the inner ring that is stator frame (1) is connected with this bearing pedestal (6) cylindrical, and this is located in the endoporus of this bearing pedestal (6) bearing (9).
4. ultrathin high-power direct current magnetoelectric motor as claimed in claim 3 is characterized in that, the end play along described power transmission shaft (8) between described fan-shaped winding (2) and the permanent magnet (3) is 0.1～0.8mm.
5. ultrathin high-power direct current magnetoelectric motor as claimed in claim 4 is characterized in that, the groove of described annular array on rotor disk (4) is a plurality of fan-shaped grooves or an integral ring-shaped groove; The thickness of described permanent magnet (3) is greater than the degree of depth of described groove.
6. ultrathin high-power direct current magnetoelectric motor as claimed in claim 5, it is characterized in that, described fan-shaped winding (2) is for to be formed by stacking or directly to turn to the winding that is superimposed by the multilayer single layer winding, and this fan-shaped winding is formed by flat conductor or round conductor coiling.
7. ultrathin high-power direct current magnetoelectric motor as claimed in claim 5, it is characterized in that, described stator frame (1), interior trim ring (10) and outer trim ring (12) are by high strength, high rigidity, heat-resisting, anti-punching resistance, aging-resistant engineering plastics precision injection molding; Described rotor disk (4) is by the metal material microdiecast moulding of magnetic conduction, and the outer surface of rotor disk (4) is provided with rib (14).
8. a ultrathin high-power direct current magnetoelectric motor is characterized in that, comprises power transmission shaft (8), is fixedly connected on the stator component of the plate-like in this power transmission shaft (8) stage casing, is located at respectively the disc-like rotor parts of these stator component both sides; Described stator component comprises: the stator frame (1) of the plate-like that is fixedly connected with described power transmission shaft (8), annular are located at a plurality of fan grooves on this stator frame (1), are located at the fan-shaped winding (2) in this fan groove, the inside and outside trim ring (10,12) of fixing this fan-shaped winding (2); Described rotor part comprises: rotor disk (4), the annular that is connected with described power transmission shaft (8) by a rolling bearing (15) is located at groove on this rotor disk (4), is fixed in the permanent magnet (3) in this groove, is provided with the surface of rotor disk of permanent magnet (3) towards described fan-shaped winding (2); Described fan groove is groove, and the external arc of this fan groove and interior circular arc respectively are provided with a block reinforcement (13) that is used for holding fan-shaped winding (2).
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| CN 201010247971 CN101951106B (en) | 2010-08-06 | 2010-08-06 | Ultrathin high-power direct current magnetoelectric motor |
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| CN 201010247971 CN101951106B (en) | 2010-08-06 | 2010-08-06 | Ultrathin high-power direct current magnetoelectric motor |
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| CN101951106B true CN101951106B (en) | 2013-01-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201113739Y (en) * | 2007-07-12 | 2008-09-10 | 胡广生 | Fixed rotor interleaved superimposed and housing rotary DC motor |
| CN101267148A (en) * | 2008-02-27 | 2008-09-17 | 陈国宝 | Permanent magnetic stacking energy-saving electromotor |
| CN101689775A (en) * | 2007-06-28 | 2010-03-31 | 信越化学工业株式会社 | Axial gap type rotating machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1014188A (en) * | 1996-06-20 | 1998-01-16 | Matsushita Electric Ind Co Ltd | Capstan motor |
| JP4584626B2 (en) * | 2004-05-24 | 2010-11-24 | 日本トムソン株式会社 | Alignment stage device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101689775A (en) * | 2007-06-28 | 2010-03-31 | 信越化学工业株式会社 | Axial gap type rotating machine |
| CN201113739Y (en) * | 2007-07-12 | 2008-09-10 | 胡广生 | Fixed rotor interleaved superimposed and housing rotary DC motor |
| CN101267148A (en) * | 2008-02-27 | 2008-09-17 | 陈国宝 | Permanent magnetic stacking energy-saving electromotor |
Non-Patent Citations (1)
| Title |
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| JP特开平10-014188A 1998.01.16 |
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| CN101951106A (en) | 2011-01-19 |
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