CN102710042B - Rotator with permanent magnets - Google Patents
Rotator with permanent magnets Download PDFInfo
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- CN102710042B CN102710042B CN201210124123.7A CN201210124123A CN102710042B CN 102710042 B CN102710042 B CN 102710042B CN 201210124123 A CN201210124123 A CN 201210124123A CN 102710042 B CN102710042 B CN 102710042B
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- permanent magnet
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- utmost point
- claw
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Abstract
A rotator with permanent magnets comprises a shaft. A front claw pole, an excitation coil, a back claw pole and a collecting ring are sleeved sequentially on the shaft, claw-shaped magnetic poles of the front claw pole and the back claw pole are in staggered arrangement to form a containing chamber, and permanent magnets are arranged between each two adjacent claw-shaped magnetic poles. The rotator with the permanent magnets is characterized in that a limiter is arranged on a concave portion of the same claw pole and used for sealing the claw pole. The limiters are arranged to clamp the permanent magnets, so that the shape of a cross section of the containing chamber does not need to strictly conform to cross sections of the permanent magnets, and processing difficulty is lowered, processing cost is low, mounting is simple and convenient and consumed time is short; and when assembly of the rotator is completed, a front fan and a back fan are mounted on the front claw pole and the back claw pole respectively, the limiters are positioned on the concave portions of the claw poles, and the front and back fans provide clamping force for the limiters, so that firm clamping is realized, and damages to the motor caused by the detached permanent magnets when the rotator rotates at a high speed are avoided.
Description
Technical field
The present invention relates to the band permanent magnet rotor in alternator for vehicle.
Background technology
Rotor is for realizing mechanical energy to the part of electric energy conversion in motor, in CN102315711 A, disclose a kind of first current generator rotor, this rotor consists of axle, permanent magnet and the forefan, the fore paw utmost point, magnetizing coil, the rear solid end utmost point, aft-fan, the collector ring that are sleeved on successively on axle.The claw-like magnetic pole of the described front and back pawl utmost point is staggered, between two adjacent claw-like magnetic poles, is provided with container cavity, and described permanent magnet is positioned at container cavity.The shape strict conformance of the shape of container cavity cross section and permanent magnet cross section, its requirement on machining accuracy is high, so container cavity processing difficulties, and processing cost is high, and difficulty, length consuming time are installed; In addition, container cavity only relies on the movement of location block body restriction permanent magnet on rotor radial, and rotor is often in rotating rapidly, increase deceleration regime and hot environment, very easily there are deformation or wearing and tearing in location block body, once location block body cannot provide spacing for permanent magnet, permanent magnet is thrown out of, and will cause motor to be smashed.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of handling ease, processing cost low, short, clamping convenient, consuming time be installed be firmly with permanent magnet rotor.
The present invention is achieved in that
A kind of band permanent magnet rotor, comprise axle, on axle, be set with successively the fore paw utmost point, magnetizing coil, the rear solid end utmost point, collector ring, the described fore paw utmost point and the staggered formation container cavity of the claw-like magnetic pole of the rear solid end utmost point, between two adjacent claw-like magnetic poles, be provided with permanent magnet, its special character is: the indentation at the same pawl utmost point is provided with limit body, by limit body by pawl utmost point involution.
The described pawl utmost point and limit body are integrated.
The material of described limit body is non-magnet material, to reduce the leakage field of pawl interpolar.
Between described limit body and claw-like magnetic pole for Split type structure and therebetween convex-concave coordinate, to reduce leakage field.
The outer of described limit body is provided with blend stop, makes permanent magnet more firm.
Described limit body inner surface is respectively equipped with a through hole and a blind hole, is positioned at through hole and respectively corresponding two the adjacent container cavities of blind hole on same limit body, and described through hole is consistent with the shape of the shape of blind hole and permanent magnet cross section, to hold permanent magnet.
Same container cavity two ends are corresponding through hole and blind hole respectively, and arranging of the through hole on the extremely corresponding limit body of fore paw, blind hole is contrary with the distributing order of through hole on the extremely corresponding limit body of rear solid end, blind hole.
The periphery that described through hole and blind hole change at claw-like magnetic pole tilts, and incline direction is with consistent with the incline direction of its corresponding container cavity.
In described through hole, be provided with guide vane end stop.
Described permanent magnet and limit body glued joint.
The invention has the beneficial effects as follows:
Owing to being provided with limit body clamping permanent magnet, the shape of container cavity cross section is without the shape strict conformance with permanent magnet cross section, reduced that difficulty of processing, processing cost are low, simple installation, consuming time short; After rotor has assembled, at forward and backward pawl, forward and backward fan is installed on extremely, because limit body is positioned at the indentation of the pawl utmost point, forward and backward fan provides clamping force for limit body, and clamping firmly, has been avoided being smashed motor because permanent magnet gets rid of to take off when rotor high-speed rotate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the assembling schematic diagram (corresponding embodiment 1) of the forward and backward pawl utmost point and permanent magnet in Fig. 1;
Fig. 3 is the structural representation of limit body in Fig. 2;
Fig. 4 is the assembling schematic diagram (corresponding embodiment 2) of the forward and backward pawl utmost point and permanent magnet in Fig. 1;
Fig. 5 is the structural representation of guide vane end stop in Fig. 2, Fig. 4;
Fig. 6 is the assembling schematic diagram (corresponding embodiment 3) of the forward and backward pawl utmost point and permanent magnet in Fig. 1;
Fig. 7 is the structural representation of limit body in Fig. 6;
Fig. 8 is the assembling schematic diagram (corresponding embodiment 5) of the forward and backward pawl utmost point and permanent magnet in Fig. 1.
In figure: axle 1, collector ring 2, the rear solid end utmost point 3, permanent magnet 4, magnetizing coil 5, the fore paw utmost point 6, limit body 7, through hole 701, blind hole 702, blend stop 703, projection 704, guide vane end stop 8.
Embodiment
Embodiment 1
As shown in Fig. 1～Fig. 3, Fig. 5, this band permanent magnet rotor comprises axle 1, on axle 1, be set with successively the fore paw utmost point 6, magnetizing coil 5, the rear solid end utmost point 3, collector ring 2, the described fore paw utmost point 6 and the staggered formation container cavity of claw-like magnetic pole of the rear solid end utmost point 3, in container cavity, be provided with permanent magnet 4, at same pawl, extremely go up between the root of every two claw-like magnetic poles and be provided with limit body 7, the material of described permanent magnet 4 is the non-ceramic material of leading, and take in the present embodiment rigid plastics as example.Root at claw-like magnetic pole is provided with groove, on limit body 7, is provided with projection 704 with groove corresponding position, and described projection 704 be able to be inserted in groove.Limit body 7 inner surfaces are provided with a through hole 701 and a blind hole 702, the two ends of same container cavity are corresponding through hole 701 and blind hole 702 respectively, and arranging of the through hole 701 on the limit body 7 connected with the fore paw utmost point 6, blind hole 702 is contrary with the distributing order of through hole 701 on the limit body 7 being connected with the rear solid end utmost point 3, blind hole 702.Described through hole 701 is consistent with the shape of the shape of blind hole 702 and permanent magnet 4 cross sections, and through hole 701 tilts along axis direction at rotor with blind hole 702, and its incline direction is with consistent with the incline direction of the corresponding container cavity in their positions.In through hole 701, be provided with guide vane end stop 8, between described guide vane end stop 8, limit body 7, permanent magnet 4, by viscose glue, connect.
As shown in Figure 4, described limit body 7 is consistent with the material of the forward and backward pawl utmost point 6,3, and limit body 7 is integrated with the forward and backward pawl utmost point 6,3 respectively, the other the same as in Example 1.
As shown in Figure 6, Figure 7, this band permanent magnet rotor comprises axle 1, on axle 1, be set with successively the fore paw utmost point 6, magnetizing coil 5, the rear solid end utmost point 3, collector ring 2, the described fore paw utmost point 6 and the staggered formation container cavity of claw-like magnetic pole of the rear solid end utmost point 3, between two adjacent claw-like magnetic poles, be provided with permanent magnet 4, at same pawl, extremely go up between the root of every two claw-like magnetic poles and be provided with limit body 7, the material of described permanent magnet 4 is the non-ceramic material of leading, and take in the present embodiment aluminium as example.Root at claw-like magnetic pole is provided with groove, on limit body, is provided with projection 704 with groove corresponding position, and described projection 704 be able to be inserted in groove.In limit body 7 outers, be provided with blend stop 703.
Between described permanent magnet 4 and limit body 7, by viscose glue, be connected the other the same as in Example 3.
As shown in Figure 8, described limit body 7 is consistent with the material of the forward and backward pawl utmost point 6,3, and limit body 7 is integrated with the forward and backward pawl utmost point 6,3 respectively, the other the same as in Example 3.
Claims (9)
1. be with permanent magnet rotor for one kind, comprise axle, on axle, be set with successively the fore paw utmost point, magnetizing coil, the rear solid end utmost point, collector ring, the described fore paw utmost point and the staggered formation container cavity of the claw-like magnetic pole of the rear solid end utmost point, between two adjacent claw-like magnetic poles, be provided with permanent magnet, it is characterized in that: the indentation at the same pawl utmost point is provided with limit body, by limit body by pawl utmost point involution; Described limit body inner surface is respectively equipped with a through hole and a blind hole, is positioned at through hole and respectively corresponding two the adjacent container cavities of blind hole on same limit body, and described through hole is consistent with the shape of the shape of blind hole and permanent magnet cross section.
2. band permanent magnet rotor according to claim 1, is characterized in that: the described pawl utmost point and limit body are integrated.
3. band permanent magnet rotor according to claim 1, is characterized in that: the material of described limit body is non-magnet material.
4. band permanent magnet rotor according to claim 1, is characterized in that: between described limit body and claw-like magnetic pole for Split type structure and therebetween convex-concave coordinate.
5. according to the band permanent magnet rotor described in claim 1 or 4, it is characterized in that: the outer of described limit body is provided with blend stop.
6. band permanent magnet rotor according to claim 1, it is characterized in that: same container cavity two ends are corresponding through hole and blind hole respectively, arranging of the through hole on the extremely corresponding limit body of fore paw, blind hole is contrary with the distributing order of through hole on the extremely corresponding limit body of rear solid end, blind hole.
7. band permanent magnet rotor according to claim 1, is characterized in that: the periphery that described through hole and blind hole change at claw-like magnetic pole tilts, and incline direction is with consistent with the incline direction of its corresponding container cavity.
8. band permanent magnet rotor according to claim 1, is characterized in that: in described through hole, be provided with guide vane end stop.
9. band permanent magnet rotor according to claim 1, is characterized in that: described permanent magnet and limit body glued joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210124123.7A CN102710042B (en) | 2012-04-26 | 2012-04-26 | Rotator with permanent magnets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210124123.7A CN102710042B (en) | 2012-04-26 | 2012-04-26 | Rotator with permanent magnets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102710042A CN102710042A (en) | 2012-10-03 |
| CN102710042B true CN102710042B (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210124123.7A Active CN102710042B (en) | 2012-04-26 | 2012-04-26 | Rotator with permanent magnets |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545957B (en) * | 2013-09-25 | 2015-10-14 | 锦州汉拿电机有限公司 | Rotor structure in electric generater of vehicle |
| CN104184234B (en) * | 2014-08-19 | 2017-10-10 | 东菱技术有限公司 | A kind of composite excitation double air gaps claw-pole motor |
| JP6684447B2 (en) * | 2016-09-15 | 2020-04-22 | 株式会社デンソー | Rotating electric machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289472A (en) * | 1998-11-30 | 2001-03-28 | 瓦莱奥电机设备公司 | Motor vehicle alternator with interpolar magnets |
| CN102210086A (en) * | 2008-11-10 | 2011-10-05 | 三菱电机株式会社 | Dynam-electric machine and method for manufacturing rotor thereof |
| CN102265482A (en) * | 2008-10-24 | 2011-11-30 | 罗伯特·博世有限公司 | Device for fixing magnets |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4837074B2 (en) * | 2009-06-23 | 2011-12-14 | 三菱電機株式会社 | Rotating electric machine |
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2012
- 2012-04-26 CN CN201210124123.7A patent/CN102710042B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289472A (en) * | 1998-11-30 | 2001-03-28 | 瓦莱奥电机设备公司 | Motor vehicle alternator with interpolar magnets |
| CN102265482A (en) * | 2008-10-24 | 2011-11-30 | 罗伯特·博世有限公司 | Device for fixing magnets |
| CN102210086A (en) * | 2008-11-10 | 2011-10-05 | 三菱电机株式会社 | Dynam-electric machine and method for manufacturing rotor thereof |
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| Publication number | Publication date |
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| CN102710042A (en) | 2012-10-03 |
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