CN203466648U - Motor rotor magnetic steel fixing structure and motor equipped with same - Google Patents
Motor rotor magnetic steel fixing structure and motor equipped with same Download PDFInfo
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- CN203466648U CN203466648U CN201320560907.4U CN201320560907U CN203466648U CN 203466648 U CN203466648 U CN 203466648U CN 201320560907 U CN201320560907 U CN 201320560907U CN 203466648 U CN203466648 U CN 203466648U
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- magnet steel
- motor
- fixed
- rotor
- steel
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
In order to reliably fix rotor magnetic steels, the utility model provides a motor rotor magnetic steel fixing structure and a motor equipped with the same. The motor rotor magnetic steel fixing structure comprises a rotor iron core, the magnetic steels, fixing supports and fixing lantern rings. Multiple blocks of the magnetic steels are alternatively distributed on an outer surface of the rotor iron core according to different polarities, the multiple blocks of the magnetic steels are separated through the fixing supports, the magnetic steels and the fixing supports are respectively provided with magnetic steel grooves for accommodating the fixing lantern rings and fixing support grooves for accommodating the fixing lantern rings, and the fixing lantern rings fix the magnetic steels on the outer surface of the rotor iron core. The motor comprises the magnetic steels, and the magnetic steels are fixed by utilizing the motor rotor magnetic steel fixing structure. According to the motor rotor magnetic steel fixing structure, the magnetic steels of the motor can be firmly fixed on the surface of the rotor iron core, and the reliability of the motor is improved; air gaps between a motor stator and the rotor is reduced, and the improvement of the motor efficiency and the effective utilization of the magnetic steels are benefited; attachments on the surface layer of the rotor are reduced by utilizing the structure, and the heat radiation of the motor is benefited; and the structure is simple, manufacturing processes can be reduced, the time is saved, and the cost is lowered.
Description
Technical field
The utility model relates to machine field, more particularly, relates to a kind of magnetic steel fixed structure of rotor.
Background technology
Existing surface permanent magnetic motor adopts bonding agent directly magnet steel to be pasted to rotor core surface mostly, this kind of fixed form exist magnet steel fixing insecure, be not suitable for the shortcomings such as high-speed cruising.The method also having be on this basis in measures such as the peripheral casting epoxy resin layer of magnet steel or winding of band-type coils to fix magnet steel, will cause like this motor manufacturing process more complicated, poor radiation and strengthen the defects such as air gap between stator and rotor, having reduced the efficiency output of motor.
Utility model content
In view of this, the utility model object is to provide a kind of magnetic steel fixed structure of effectively fixed electrical machinery rotor core magnet steel.
In order to solve the magnet steel of effective fixed electrical machinery rotor core outer surface, reduce the air gap between rotor and stator, the utility model provides a kind of motor rotor magnetic steel fixed structure to comprise rotor core, magnet steel, fixed mount and retaining collar, described in polylith, magnet steel is alternately distributed according to opposed polarity at rotor core outer surface, between described polylith magnet steel, by described fixed mount, separate, described magnet steel and described fixed mount are provided with for holding the groove of retaining collar on all, and described retaining collar is fixed on described rotor core outer surface by described magnet steel.
Further, the two ends of described fixed mount are also provided with the end cap that is distributed in two end faces magnet steel for compressing.
Further, described magnet steel is arc strip, is formed with groove described at least one on described arc strip magnet steel outer peripheral face.
Further, the width summation of the described groove on described every block of magnet steel is not more than 1/10th of described every magnet steel length.
Further, described polylith magnet steel distributes at the certain angle θ that circumferentially staggers.
Further, described polylith magnet steel is at the angle θ <2 π/4p that circumferentially staggers, and p is rotor pole logarithm.
Further, the outer surface of described retaining collar, described fixed mount and described magnet steel is concordant.
Further, described retaining collar is nonmagnetic substance.
Further, described fixed mount is provided with one and extends axially the installing hole that connects fixed mount, is provided with the fixed lever of the fixed mount running through in described installing hole, and described fixed lever is fixed on fixed mount in the rotor endcap matching with described motor rotor core.
Another one of the present utility model aspect provides a kind of motor, comprises rotor, and described rotor outer surface is provided with magnet steel, and described magnet steel adopts the motor rotor magnetic steel fixed structure described in above-mentioned any one to be fixed.
From above-mentioned technical scheme, can find out, motor rotor magnetic steel fixed structure of the present utility model can be securely fixed in the magnet steel of motor the surface of rotor core, improves the reliability of motor; Reduce the air gap between motor stator and rotor, be beneficial to the lifting of electric efficiency and effective utilization of magnet steel; And this structure is used and has been reduced rotor top layer attachment, is beneficial to motor radiating; Simple in structure, can reduce manufacturing process, save time, reduce costs.
Adopt the motor of the fixing structure of above-mentioned magnet steel equally also to there is identical useful technique effect, again repeat no more.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 motor rotor magnetic steel fixed structure described in the utility model overall schematic
Magnet steel schematic diagram in Fig. 2 motor rotor magnetic steel fixed structure described in the utility model
Magnet steel outer surface structure schematic diagram in Fig. 3 motor rotor magnetic steel fixed structure described in the utility model
The circumferential schematic diagram of Fig. 4 a motor rotor magnetic steel fixed structure described in the utility model magnet steel dislocation angle theta
The axial schematic diagram of Fig. 4 b motor rotor magnetic steel fixed structure described in the utility model magnet steel dislocation angle theta
Retaining collar schematic diagram in Fig. 5 motor rotor magnetic steel fixed structure described in the utility model
The fixed mount schematic diagram of Fig. 6 motor rotor magnetic steel fixed structure described in the utility model.
The rotor endcap schematic diagram of Fig. 7 motor rotor magnetic steel fixed structure described in the utility model.
Description of reference numerals:
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the fixed structure of motor rotor magnetic steel, mainly comprises main shaft 1, rotor core 2, magnet steel 3, retaining collar 4 and fixed mount 5, and magnet steel 3 was upwards evenly alternately distributed by opposed polarity along the week of rotor core 2 external diameters; On the outer arc surface of magnet steel 3, have magnet steel groove 30, retaining collar 4 is fixed on magnet steel 3 on the surface of rotor core 2 through magnet steel groove 30 and the fixed mount groove 8 on fixed mount on magnet steel 3; Fixed mount 5, along arranging between described adjacent opposed polarity magnet steel 3, slides along rotor core 2 outer surfaces with antimagnetic steel 3; The both ends of the surface of described fixed mount 5 are respectively equipped with for compressing the end cap 9 of magnet steel 3 two sides, and magnet steel 3 is carried out to axial restraint.
As shown in Figure 2 and Figure 3, described magnet steel 3 is arc list structure, and the outer arc surface of magnet steel 3 is provided with magnet steel groove 30 along circumferential direction, so that retaining collar 4 is through magnet steel 3 being fixed on to the surface of rotor core 2.As one of optimal way of this programme, each magnet steel in this enforcement is done as a whole covering on rotor core outer peripheral face, in the case, in order to make fixing more reliable of magnet steel, on magnet steel, be formed with two or more magnet steel groove (301,302).
For the impact on motor harmonic wave of the magnet steel groove 30 that reduces magnet steel 3, magnet steel groove 301,302 width in this example are for being respectively W1 and W2, magnet steel groove 301 and magnet steel groove 302 overall width W(W=W1+W2) 1/10th (L/10) of≤magnet steel total length L.
As shown in Fig. 4 a, 4b, for to reduce the torque pulsation of motor and to be beneficial to motor radiating.Preferably, described magnet steel 3 can be arranged to more, for the object of giving an example, in this enforcement, along the axial magnet steel 3 of rotor core, be divided into three layers of setting, every one deck has some little magnet steel to form, and at the axial direction magnet steel 3 of rotor core 2, is designed to hierachical structure, each layer comprises respectively the first magnet steel 31, the second magnet steel 32, the 3rd magnet steel 33, each magnet steel layer is upwards dislocatedly distributed by certain angle theta at rotor core for 2 weeks, and angle theta is less than 2 π/4p, and p is rotor pole logarithm.On each magnet steel, be formed with respectively magnet steel groove, on the first magnet steel, be formed with on the first magnet steel groove 310, the second magnet steel and be formed with on the second magnet steel groove 320, the 3rd magnet steel and be formed with the 3rd magnet steel groove 330.Retaining collar is fixed it by the groove of every one deck magnet steel.
For can be by firm being fixed on rotor core of magnet steel, preferably, described retaining collar 4 is non magnetic material, as shown in Figure 5, and the magnet steel groove 30 along rotor core 2 circumferential direction through magnet steel 3, the outer surface 41 of retaining collar 4 does not exceed magnet steel outer surface, the indent plane-plane contact of retaining collar inner surface 42 and magnet steel groove 30, fixed mount 5 back to the outer surface of rotor core 2 not outside super described magnet steel 3 extrados, be provided with the groove 8 that described retaining collar 4 passes above, be more conducive to fix magnet steel 3.Retaining collar 4 neither affects the gap between stator and rotor like this, magnet steel 3 can be fixedly secured to the surface at rotor core 2 again.
As Fig. 6, preferably, described fixed mount 5 is provided with one and extends axially the installing hole 6 that connects fixed mount, in described installing hole 6, be provided with the fixed lever of the fixed mount running through, fixed mount fixed lever is fixed on fixed mount 5 in rotor endcap 9 by screw or other fixtures, and rotor endcap 9 is fixed on rotor core 2 both ends of the surface by screw or rivet.
As Fig. 7, preferably, for magnet steel 3 being carried out to axial restraint and tightening up fixed mount 5, rotor core 2 two ends are provided with end cap 9, described end cap 9 is provided with the first fixing hole 91 coordinating with fixed lever, and the second fixing hole 92 coordinating with the iron core fixing hole 21 of rotor core 2; Screw is fixed together by the first fixing hole 91 fixed lever and the rotor endcap 9 that run through fixed mount 5, and screw or rivet are fixed together rotor core 2 and end cap 9 with iron core fixing hole 21 through the second fixing hole 92.
From above-mentioned technical scheme, can find out, motor rotor magnetic steel fixed structure of the present utility model can be securely fixed in the magnet steel of motor 3 surface of rotor core 2, improves the reliability of motor; Reduce the air gap between motor stator and rotor, be beneficial to the lifting of electric efficiency and effective utilization of magnet steel; And this structure is used and has been reduced rotor top layer attachment, is beneficial to motor radiating; Simple in structure, can reduce manufacturing process, save time, reduce costs.
Magnet steel of the present utility model is fixing uses various Surface Mount permanent-magnetic electric machines, and art technology person, under instruction of the present utility model, can make concrete structure of the present utility model on the rotor of the analog structure that adaptive modification is applied to.
In this specification, technical scheme emphasis is described utility model point, and all the other parts same as the prior art, referring to prior art.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can be in the situation that do not depart from the spirit or scope of the utility model embodiment, realization in other embodiments.Therefore, the utility model embodiment will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a motor rotor magnetic steel fixed structure, comprise rotor core, magnet steel, fixed mount and retaining collar, described in polylith, magnet steel is alternately distributed according to opposed polarity at rotor core outer surface, between described polylith magnet steel, by described fixed mount, separate, it is characterized in that, on described magnet steel and described fixed mount, be respectively arranged with for holding magnet steel groove and the fixed mount groove of retaining collar, described retaining collar is fixed on described rotor core outer surface by magnet steel groove and fixed mount groove by described magnet steel.
2. motor rotor magnetic steel fixed structure according to claim 1, is characterized in that, the two ends of described fixed mount are also provided with the end cap that is distributed in two end faces magnet steel for compressing.
3. motor rotor magnetic steel fixed structure according to claim 1, is characterized in that, described magnet steel is arc strip, is formed with magnet steel groove described at least one on described arc strip magnet steel outer peripheral face.
4. motor rotor magnetic steel fixed structure according to claim 3, is characterized in that, the width summation of the described groove on described every block of magnet steel is not more than 1/10th of described every magnet steel length.
5. motor rotor magnetic steel fixed structure according to claim 1, is characterized in that, described polylith magnet steel distributes at the certain angle θ that circumferentially staggers in axial stratification distribution and each layer of magnet steel.
6. motor rotor magnetic steel fixed structure according to claim 5, is characterized in that, the described angle θ <2 π/4p that circumferentially staggers, and p is rotor pole logarithm.
7. according to the motor rotor magnetic steel fixed structure described in claim 1 to 6 any one, it is characterized in that, the outer surface of described retaining collar, described fixed mount and described magnet steel is concordant.
8. motor rotor magnetic steel fixed structure according to claim 7, is characterized in that, described retaining collar is nonmagnetic substance.
9. motor rotor magnetic steel fixed structure according to claim 8, it is characterized in that, described fixed mount is provided with one and extends axially the installing hole that connects fixed mount, in described installing hole, be provided with the fixed lever of the fixed mount running through, described fixed lever is fixed on fixed mount in the rotor endcap matching with described motor rotor core.
10. a motor, comprises rotor, and described rotor outer surface is provided with magnet steel, it is characterized in that, described magnet steel adopts the motor rotor magnetic steel fixed structure described in claim 1 to 9 any one to be fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560907.4U CN203466648U (en) | 2013-09-10 | 2013-09-10 | Motor rotor magnetic steel fixing structure and motor equipped with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560907.4U CN203466648U (en) | 2013-09-10 | 2013-09-10 | Motor rotor magnetic steel fixing structure and motor equipped with same |
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| Publication Number | Publication Date |
|---|---|
| CN203466648U true CN203466648U (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320560907.4U Expired - Fee Related CN203466648U (en) | 2013-09-10 | 2013-09-10 | Motor rotor magnetic steel fixing structure and motor equipped with same |
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| Country | Link |
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| CN (1) | CN203466648U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426264A (en) * | 2013-09-10 | 2015-03-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor magnetic steel fixing structure and motor with same |
| CN108418326A (en) * | 2018-05-10 | 2018-08-17 | 邹跃洲 | Magnet steel is equally spaced locating piece, rotor and motor |
-
2013
- 2013-09-10 CN CN201320560907.4U patent/CN203466648U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426264A (en) * | 2013-09-10 | 2015-03-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor magnetic steel fixing structure and motor with same |
| CN108418326A (en) * | 2018-05-10 | 2018-08-17 | 邹跃洲 | Magnet steel is equally spaced locating piece, rotor and motor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 |