CN202550739U - Magnetic steel end part fastening structure of permanent magnet motor rotor - Google Patents
Magnetic steel end part fastening structure of permanent magnet motor rotor Download PDFInfo
- Publication number
- CN202550739U CN202550739U CN2012201057234U CN201220105723U CN202550739U CN 202550739 U CN202550739 U CN 202550739U CN 2012201057234 U CN2012201057234 U CN 2012201057234U CN 201220105723 U CN201220105723 U CN 201220105723U CN 202550739 U CN202550739 U CN 202550739U
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- magnet steel
- stainless steel
- magnetic steel
- steel
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Abstract
The utility model provides a magnetic steel end part fastening structure of a permanent magnet motor rotor. The structure comprises magnetic steel, a heat expansibility glass felt, a stainless steel pressing plate, a stainless steel fastener, a rotor core pressing ring and a rotor core, wherein the magnetic steel is divided into multiple sections in the axial direction and inserted in magnetic steel grooves of the rotor core; the rotor core pressing ring is pressed on the end face of the rotor core; the stainless steel pressing plate is pressed on the magnetic steel and the rotor core pressing ring and connected with the rotor core pressing ring through the stainless steel fastener; and the heat expansibility glass felt is positioned between the stainless steel pressing plate and the magnetic steel. According to the structure, the high expansibility rate of the heat expansibility glass felt is utilized, the axial thickness is freely adjusted, flexible fixation of the magnetic steel is realized, and problems caused by manufacture errors are solved. Due to the adoption of independent fastening devices, a tool is eliminated, the magnetic steel end part fastening structure is convenient to manufacture, and looseness of the magnetic steel caused by removing the tool is avoided.
Description
Technical field
The utility model relates to the permanent magnet machine rotor field, is specifically related to a kind of novel structure, the embedded magnet steel end axis of permanent magnet machine rotor that performance is good, easy for installation to fastening structure.
Background technology
The embedded magnet steel end axis of existing magneto generally all is that the full circle trim ring that adopts material such as stainless steel to process compresses the magnet steel of all numbers of poles simultaneously simultaneously to fastening structure.Every utmost point magnet steel is divided into the n section in the axial direction and inserts the magnet steel groove; Because foozle; There is certain deviation in the axial length sum of the axial length of magnet steel groove and n section magnet steel; Therefore this fastening means has following some problem: 1, if the axial long magnet steel groove that stretches out of the final stage magnet steel of two ends of rotor, can cause then that end rigidity trim ring is directly stressed on magnet steel, it to be damaged by pressure; If the final stage magnet steel of two ends of rotor is too short recessed magnet steel groove axially, then the rigidity trim ring is directly stressed on the iron core face, and magnet steel does not have axial compression; 2, there is deviation in the total axial length of magnet steel in each utmost point magnet steel groove, and the full circle trim ring can not cooperate with the magnet steel end face of all utmost points and compresses the while; Need the magnet steel of the same utmost point all be installed when 3, installing next utmost point is installed again owing to magnet steel; Must on technology, make again like this and compress frock; Interim with every extremely fixing; After treating that all utmost point magnet steel have been adorned, remove frock again, change on the magnet steel end face that a full circle trim ring is pressed in all utmost points.This complex process, operation is very inconvenient, and when removing frock, causes possibly and compressed in the groove and not completely crued magnet steel is loosening with the epoxy glue bonding.
The utility model content
The purpose of the utility model is to provide a kind of permanent-magnetic electric machine rotor magnet steel end fastening structure, and performance is good, easy for installation, can effectively avoid the problem of existing embedded magnet steel end compressing structure.
The technical scheme of the utility model is following:
A kind of permanent-magnetic electric machine rotor magnet steel end fastening structure comprises magnet steel, thermal expansivity glass felt, stainless steel platen, stainless steel support, rotor core trim ring and rotor core; Magnet steel is divided into multistage in the axial direction and inserts in the magnet steel groove of rotor core, and the rotor core trim ring is pressed on the end face of rotor core; Stainless steel platen is pressed on magnet steel and the rotor core trim ring and through stainless steel support and is connected with the rotor core trim ring; The thermal expansivity glass felt is between stainless steel platen and magnet steel.
Its further technical scheme is: be inserted with multipole magnet steel on the said rotor core, every utmost point magnet steel place has one group of independently thermal expansivity glass felt, stainless steel platen and stainless steel support.
And its further technical scheme is: said thermal expansivity glass felt is the flexible material with high expansion rate.
The useful technique effect of the utility model is:
(1) both prevented that the final stage at two ends stretched out the magnet steel groove, causes that magnet steel damages damaging problem by pressure because the rotor magnetic steel that foozle causes is axially long; Prevent that again the final stage at two ends is recessed into the magnet steel groove, causes compressing loosening problem because the rotor magnetic steel that foozle causes is axially too short.(2) one of every utmost point hold down gag independently than existing full circle magnet steel end clamp plate, has been removed technology and pattern assembly from, greatly facilitate manufacture process, and it is loosening to have avoided frock to remove the magnet steel that causes.
Description of drawings
Fig. 1 is the cross-sectional view of the axial length overall of magnet steel the utility model when long.
Fig. 2 is the stereogram of parts 2 among Fig. 1, parts 3, parts 4.
Fig. 3 is the cross-sectional view of the axial length overall of magnet steel the utility model when too short.
Fig. 4 is the stereogram of parts 2 among Fig. 3, parts 3, parts 4.
Fig. 5 is the left view of Fig. 1, Fig. 2.
Description of reference numerals: 1, magnet steel; 2, thermal expansivity glass felt; 3, stainless steel platen; 4, stainless steel support; 5, rotor core trim ring; 6, rotor core.
Embodiment
Further specify below in conjunction with the embodiment of accompanying drawing the utility model.
Like Fig. 1, shown in Figure 3, the utility model is made up of magnet steel 1, thermal expansivity glass felt 2, stainless steel platen 3, stainless steel support 4, rotor core trim ring 5 and rotor core 6.Magnet steel 1 (only showing a utmost point wherein among the figure) branch plurality of sections in the axial direction inserts in the magnet steel groove of rotor core 6, and rotor core trim ring 5 is pressed on the end face of rotor core 6.Stainless steel platen 3 is pressed on magnet steel 1 and the rotor core trim ring 5, and is fastened on the rotor core trim ring 5 with stainless steel support 4 (bolt).
As depicted in figs. 1 and 2, if the final stage magnet steel 1 axial long magnet steel groove that stretches out at rotor core 6 two ends, the part that then contacts with magnet steel 1 in the flexible thermal dilatancy glass felt 2 is compressed recessed.Then thermal expansivity glass felt 2 solidifies behind vacuum encapsulation epoxy resin, not redeformation or loosening.
Like Fig. 3 and shown in Figure 4, if the final stage magnet steel 1 axial too short recessed magnet steel groove at rotor core 6 two ends, the part that then contacts with magnet steel 1 in the flexible thermal dilatancy glass felt 2 is inflated protrusion and compresses magnet steel 1.Then thermal expansivity glass felt 2 solidifies behind vacuum encapsulation epoxy resin, not redeformation or loosening.
Thermal expansivity glass felt 2 absorb epoxy resin and when being heating and curing expansion rate reach 100%, and and magnet steel 1 and corrosion resistant plate 3 between tight bond be integral.The thermal expansivity glass felt can freely adjust the axial width size because its high expansion rate, prevents that constraint or thrust from crossing 1 crushing of senior general's magnet steel, also avoids magnet steel 1 recessed pockets interior and may not compress, and realization is fixed the flexibility of magnet steel 1.Thereby remedy owing to foozle the problem that the axial length sum of the axial length of magnet steel groove and n section magnet steel 1 exists certain deviation to bring.
Shown in Figure 5, there is an independently fastener end of every utmost point magnet steel groove, whenever installs a utmost point magnet steel, just the magnet steel of this utmost point is fixed.After the hold down gag of the magnet steel of all utmost points all installs, overall vacuum epoxy resin-impregnated, baking and curing.Install more convenient.
Above-described only is the preferred implementation of the utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite of the basic design that does not break away from the utility model, all should think to be included within the protection range of the utility model.
Claims (3)
1. a permanent-magnetic electric machine rotor magnet steel end fastening structure is characterized in that: comprise magnet steel (1), thermal expansivity glass felt (2), stainless steel platen (3), stainless steel support (4), rotor core trim ring (5) and rotor core (6); Magnet steel (1) is divided into multistage in the axial direction and inserts in the magnet steel groove of rotor core (6), and rotor core trim ring (5) is pressed on the end face of rotor core (6); Stainless steel platen (3) is pressed on magnet steel (1) and rotor core trim ring (5) upward and through stainless steel support (4) is connected with rotor core trim ring (5); Thermal expansivity glass felt (2) is positioned between stainless steel platen (3) and the magnet steel (1).
2. according to the said permanent-magnetic electric machine rotor magnet steel of claim 1 end fastening structure; It is characterized in that: be inserted with multipole magnet steel (1) on the said rotor core (6), every utmost point magnet steel (1) locates to have one group of independently thermal expansivity glass felt (2), stainless steel platen (3) and stainless steel support (4).
3. according to claim 1 or 2 said permanent-magnetic electric machine rotor magnet steel end fastening structures, it is characterized in that: the flexible material of said thermal expansivity glass felt (2) for having high expansion rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201057234U CN202550739U (en) | 2012-03-20 | 2012-03-20 | Magnetic steel end part fastening structure of permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201057234U CN202550739U (en) | 2012-03-20 | 2012-03-20 | Magnetic steel end part fastening structure of permanent magnet motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202550739U true CN202550739U (en) | 2012-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201057234U Expired - Lifetime CN202550739U (en) | 2012-03-20 | 2012-03-20 | Magnetic steel end part fastening structure of permanent magnet motor rotor |
Country Status (1)
| Country | Link |
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| CN (1) | CN202550739U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611228A (en) * | 2012-03-20 | 2012-07-25 | 中科盛创（青岛）电气有限公司 | Magnetic steel end fastening structure of permanent magnet motor rotor |
| CN103633802A (en) * | 2013-11-29 | 2014-03-12 | 南阳防爆集团股份有限公司 | Flameproof permanent magnetic synchronous power generator |
| CN105226859A (en) * | 2015-11-03 | 2016-01-06 | 中科盛创（青岛）电气股份有限公司 | A kind of rotor structure of the oblique pole of magneto V-arrangement |
| US11692856B1 (en) | 2022-06-03 | 2023-07-04 | Nidec Motor Corporation | Rotary encoder shaft clamp |
-
2012
- 2012-03-20 CN CN2012201057234U patent/CN202550739U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611228A (en) * | 2012-03-20 | 2012-07-25 | 中科盛创（青岛）电气有限公司 | Magnetic steel end fastening structure of permanent magnet motor rotor |
| CN103633802A (en) * | 2013-11-29 | 2014-03-12 | 南阳防爆集团股份有限公司 | Flameproof permanent magnetic synchronous power generator |
| CN105226859A (en) * | 2015-11-03 | 2016-01-06 | 中科盛创（青岛）电气股份有限公司 | A kind of rotor structure of the oblique pole of magneto V-arrangement |
| US11692856B1 (en) | 2022-06-03 | 2023-07-04 | Nidec Motor Corporation | Rotary encoder shaft clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 266071 Shandong province Qingdao Xinye High-tech Industrial Development Zone of Qingdao Road No. 18 Patentee after: Zhongke Sheng Chuang (Qingdao) electric Limited by Share Ltd Address before: 266071 318-59, Pioneer Center, hi tech Industrial Development Zone, Shandong, Qingdao, Qingdao Patentee before: Zhongke Sheng Chuang (Qingdao) Electric Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |