CN202550727U - Rotor structure of variable frequency speed control permanent magnet synchronous motor - Google Patents

Rotor structure of variable frequency speed control permanent magnet synchronous motor Download PDF

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Publication number
CN202550727U
CN202550727U CN2012200797104U CN201220079710U CN202550727U CN 202550727 U CN202550727 U CN 202550727U CN 2012200797104 U CN2012200797104 U CN 2012200797104U CN 201220079710 U CN201220079710 U CN 201220079710U CN 202550727 U CN202550727 U CN 202550727U
Authority
CN
China
Prior art keywords
permanent magnet
rotor
rotor core
ring
variable frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012200797104U
Other languages
Chinese (zh)
Inventor
王严
何敏
肖文明
周福兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN FELLER MAGTECH Corp
Original Assignee
SHENZHEN FELLER MAGTECH Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENZHEN FELLER MAGTECH Corp filed Critical SHENZHEN FELLER MAGTECH Corp
Priority to CN2012200797104U priority Critical patent/CN202550727U/en
Application granted granted Critical
Publication of CN202550727U publication Critical patent/CN202550727U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a rotor structure of a variable frequency speed control permanent magnet synchronous motor. The rotor structure comprises a revolving shaft, a rotor core and a permanent magnet, wherein the rotor core is arranged on the revolving shaft; and the permanent magnet is placed into the rotor core. The rotor structure is characterized in that two ends of the rotor core are respectively provided with end cover structures for shielding parts of the permanent magnet; each end cover structure comprises a peripheral circular check ring and a press plate of an inner ring; U-shaped grooves are arranged on the press plate, so that the imbedded permanent magnet can be arranged and dismantled as long as the check rings are taken out while the press plates for tightly pressing the rotor core do not need to be taken out; and the rotor core is clamped by a firmly welded circular key, so that the rotor structure is firmly and stably fixed; and the check rings are drilled with weight removing holes, and therefore rotor dynamic balancing can be carried out.

Description

Variable frequency speed-adjusting permanent magnet synchronous electric motor rotor structure
[technical field]
The utility model relates to the variable frequency speed-adjusting permanent magnet synchronous machine, relates in particular to the rotor structure design of variable frequency speed-adjusting permanent magnet synchronous machine.
[background technology]
Variable frequency speed-adjusting permanent magnet synchronous electric motor rotor structure has screw rod tension formula and trim ring compression type at present.Screw rod tension formula only is applicable to the low-speed running operating mode, though and the trim ring compression type is applicable at a high speed at present, operation is numerous and diverse, need laminate rotor core earlier, unclamps then to press circle, reinstalls permanent magnet, compresses rotor core with pressing to enclose again at last.Before the permanent magnet of packing into, need unclamp earlier and press circle; In a single day press circle and unclamped, rotor punching from loose condition (of surface), does not utilize packing into of permanent magnet yet; And come again at last with pressing circle when compressing rotor core, exist hydraulic press to weigh the risk of permanent magnet in the rotor wounded.The secondary press-fitting iron core needs handling back and forth in addition, and in this process, the rotor that contains permanent magnet is prone to absorption ironware or other foreign matter, is difficult to remove.
[summary of the invention]
It is more convenient that the utility model has proposed a kind of dismounting to above problem, when the dress permanent magnet, need not become flexible the motor rotor construction of iron core.
The technical scheme of the utility model is: a kind of variable frequency speed-adjusting permanent magnet synchronous electric motor rotor structure; Comprise rotating shaft; Be contained in the rotor core in the rotating shaft and be encased in the permanent magnet in the rotor core, it is characterized in that the end cover structure that shelters from the part permanent magnet is arranged at the rotor core two ends; Said end cover structure comprises the peripheral circular back-up ring and the pressing plate of inner ring, and U type groove is arranged on pressing plate.
In rotating shaft, place, said rotor core location is blocked with annulus key location.
On said back-up ring, be useful on dynamically balanced boring.
U type groove on said pressing plate adapts to the permanent magnet size, when the periphery does not have back-up ring to push down, can hold permanent magnet and from U type groove, pass through.
Said back-up ring and pressing plate are on the same circle plane, and the end cover structure integral body of formation is pressed on the rotor core.
The benefit of the utility model is: as long as take off back-up ring; Need not take off the permanent magnet that the pressing plate that compresses rotor core just can installing/dismounting embeds, and also have an annulus key that welds to block iron core, fixing more firm, stable; On back-up ring, be drilled with repeated hole, can carry out rotor dynamic balancing.
[description of drawings]
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of the utility model back-up ring and pressing plate;
Fig. 3 is rotor core and magnet structure sketch map.
Wherein: 1, rotating shaft; 2, annulus key; 3, rotor core; 4, back-up ring; 5, pressing plate; 6, boring; 7, permanent magnet; 8, U type groove.
[embodiment]
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.
Embodiment 1: a kind of variable frequency speed-adjusting permanent magnet synchronous electric motor rotor structure; Comprise rotating shaft 1; Be contained in the rotor core 3 in the rotating shaft 1 and be encased in the permanent magnet 7 in the rotor core 3, it is characterized in that the end cover structure that shelters from the part permanent magnet being arranged at rotor core 3 two ends; Said end cover structure comprises the pressing plate 5 of peripheral circular back-up ring 4 and inner ring, and U type groove 8 is arranged on pressing plate 5.
In rotating shaft 1, place, said rotor core 3 location is blocked with annulus key 2 location.
On said back-up ring 4, be useful on dynamically balanced boring 6.
U type groove 8 on said pressing plate 5 adapts to permanent magnet 7 sizes, when the periphery does not have back-up ring 4 to push down, can hold permanent magnet 7 and from U type groove 8, pass through.
Said back-up ring 4 is on the same circle plane with pressing plate 5, and the end cover structure integral body of formation is pressed on the rotor core 3.
In assembling with the rotating shaft of packing into of first block pressur plate, next with the rotor punching rotating shaft of packing into, again with the rotating shaft of packing into of the 2nd block pressur plate; Block with the annulus key after with forcing press iron core being pressed onto assigned address then, prevent that iron core from flicking, with electric welding machine the annulus key is welded in rotating shaft more afterwards; At last just through the U type groove permanent magnet of packing into; And then with on the back-up ring on pressing plate, back-up ring welds on pressing plate, on back-up ring, bores and goes repeated hole to carry out rotor dynamic balancing.
The benefit of the utility model is: as long as take off back-up ring; Need not take off the permanent magnet that the pressing plate that compresses rotor core just can installing/dismounting embeds, and also have an annulus key that welds to block iron core, fixing more firm, stable; On back-up ring, be drilled with repeated hole, can carry out rotor dynamic balancing.

Claims (5)

1. variable frequency speed-adjusting permanent magnet synchronous electric motor rotor structure; Comprise rotating shaft; Be contained in the rotor core in the rotating shaft and be encased in the permanent magnet in the rotor core, it is characterized in that the end cover structure that shelters from the part permanent magnet is arranged at the rotor core two ends; Said end cover structure comprises the peripheral circular back-up ring and the pressing plate of inner ring, and U type groove is arranged on pressing plate.
2. according to the said variable frequency speed-adjusting permanent magnet synchronous electric motor rotor of claim 1 structure, it is characterized in that in rotating shaft, place, said rotor core location is blocked with annulus key location.
3. according to the said variable frequency speed-adjusting permanent magnet synchronous electric motor rotor of claim 1 structure, it is characterized in that the U type groove on said pressing plate adapts to the permanent magnet size, when the periphery does not have back-up ring to push down, can hold permanent magnet and from U type groove, pass through.
4. according to the said variable frequency speed-adjusting permanent magnet synchronous electric motor rotor of claim 3 structure, it is characterized in that said back-up ring and pressing plate are on the same circle plane, the end cover structure integral body of formation is pressed on the rotor core.
5. according to claim 3 or 4 said variable frequency speed-adjusting permanent magnet synchronous electric motor rotor structures, it is characterized in that, on said back-up ring, be useful on dynamically balanced boring.
CN2012200797104U 2012-07-20 2012-07-20 Rotor structure of variable frequency speed control permanent magnet synchronous motor Expired - Fee Related CN202550727U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200797104U CN202550727U (en) 2012-07-20 2012-07-20 Rotor structure of variable frequency speed control permanent magnet synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200797104U CN202550727U (en) 2012-07-20 2012-07-20 Rotor structure of variable frequency speed control permanent magnet synchronous motor

Publications (1)

Publication Number Publication Date
CN202550727U true CN202550727U (en) 2012-11-21

Family

ID=47171294

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012200797104U Expired - Fee Related CN202550727U (en) 2012-07-20 2012-07-20 Rotor structure of variable frequency speed control permanent magnet synchronous motor

Country Status (1)

Country Link
CN (1) CN202550727U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103545960A (en) * 2013-11-04 2014-01-29 合肥荣事达三洋电器股份有限公司 Permanent magnet motor rotor and manufacturing method thereof
WO2016132061A1 (en) * 2015-02-19 2016-08-25 Valeo Equipements Electriques Moteur Electrical rotating machine with optimised cooling
CN106208451A (en) * 2016-08-31 2016-12-07 安徽安凯汽车股份有限公司 A kind of magneto composite fabricated rotor end plate
DE112013006948B4 (en) 2013-04-15 2021-09-30 Mitsubishi Electric Corporation Rotor of a lathe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112013006948B4 (en) 2013-04-15 2021-09-30 Mitsubishi Electric Corporation Rotor of a lathe
CN103545960A (en) * 2013-11-04 2014-01-29 合肥荣事达三洋电器股份有限公司 Permanent magnet motor rotor and manufacturing method thereof
CN103545960B (en) * 2013-11-04 2015-12-23 惠而浦(中国)股份有限公司 A kind of permanent magnet machine rotor and manufacture method thereof
WO2016132061A1 (en) * 2015-02-19 2016-08-25 Valeo Equipements Electriques Moteur Electrical rotating machine with optimised cooling
FR3033098A1 (en) * 2015-02-19 2016-08-26 Valeo Equip Electr Moteur ROTATING ELECTRIC MACHINE WITH OPTIMIZED COOLING
CN106208451A (en) * 2016-08-31 2016-12-07 安徽安凯汽车股份有限公司 A kind of magneto composite fabricated rotor end plate

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121121

Termination date: 20140720