CN202550732U - Rotor magnetic pole structure of permanent-magnet motor - Google Patents
Rotor magnetic pole structure of permanent-magnet motor Download PDFInfo
- Publication number
- CN202550732U CN202550732U CN2012201057215U CN201220105721U CN202550732U CN 202550732 U CN202550732 U CN 202550732U CN 2012201057215 U CN2012201057215 U CN 2012201057215U CN 201220105721 U CN201220105721 U CN 201220105721U CN 202550732 U CN202550732 U CN 202550732U
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Abstract
The utility model discloses a rotor magnetic pole structure of a permanent-magnet motor. The rotor magnetic pole structure consists of a pole shoe, magnetic steel, a bottom plate, a rotor support, wall-mounted epoxy strips, epoxy block pressing bolts and inter-pole epoxy blocks. The pole shoe is of a convex structure with two ends having recessed platforms. Each inter-pole epoxy block is of a T-shaped structure with an inverted-trapezoid head. The integral magnetic pole is fixed in a manner of pressing the recessed platforms at two ends of the magnetic shoe by the T-shaped platforms of the inter-pole epoxy blocks, a step of drilling bolt holes on the pole shoe, the magnetic steel, the bottom plate and the rotor support for fixing the magnetic pole is omitted, technical procedures are simplified greatly, and cost is reduced.
Description
Technical field
The utility model relates to permanent magnet motor, permanent magnet generator field, relates in particular to a kind of rotor magnetic pole structure that is applied to low-speed permanent magnetic direct driving type aerogenerator, permanent magnetism semi-direct driving wind power generator.
Background technology
The rotor structure of common magneto has three kinds: diametrical magnetization structure, tangential magnetization configuration and axial magnetized structure.In view of technology, the diametrical magnetization structural manufacturing process realizes easily having bigger advantage; Tangential structure processing parts is many, and assembling is difficulty relatively; The axial magnetized structure is exactly so-called disc type electric machine, and application is only arranged on small machine, is difficult on the big motor, does not therefore have comparativity with the diametrical magnetization structure.
Along with the magneto capacity is increasing, the size of required magnet steel is also increasing, and the installation of magnet steel, fixing and protection seem particularly important.For large-scale magneto, because physical dimension is bigger, the size of magnet steel and thickness are also bigger; Consider present large scale permanent magnet processing technology imperfection; The magnet steel of each magnetic pole need be divided into several sections, and is very high to the installation and the fixing requirement of magnet steel, because the magnetic force of large scale magnet steel is very strong; Necessary one-time-reach-place is installed, otherwise the position is difficult to adjustment; In addition, consider the influence of centrifugal force, tangential force and the vibration of magneto in running, the installation of magnetic pole and fixing necessary reliable and safety.Above-mentioned situation is had higher requirement to the design of electrical motor personnel.
Chinese patent CN202121394U discloses a kind of rotor magnetic pole structure of magneto; This frame mode adopts the mode of punching in the middle of the magnetic pole to fix magnetic pole, causes the pole shoe difficulty of processing to strengthen, and uses also inconvenient; Make the magnet steel manufacturing procedure increase simultaneously; Rate of finished products reduces, and cost increases, and the magnetic flux of loss magnetic pole.
The utility model content
The purpose of the utility model is to overcome the shortcoming of prior art; A kind of rotor magnetic pole structure that belongs to the magneto of diametrical magnetization structure is provided; Do not need perforate in the middle of its magnet steel, do not need perforate between pole shoe and the base plate yet, rotor field spider does not need perforate yet; Thereby the simplification technological process reduces cost.
The technical scheme of the utility model is following:
A kind of rotor magnetic pole structure of magneto comprises a rotor field spider, offers a plurality of grooves on the excircle of said rotor field spider, and the magnetic pole that is formed by mutual bonding magnet steel, base plate and pole shoe is installed in each groove; Said base plate is adhered to the magnet steel below, fixes with the groove fit on the rotor field spider; Said pole shoe is adhered to the magnet steel top; Said magnet steel both sides are bonded with adherent epoxy strips respectively; Be provided with the interpolar epoxidized block between the said magnetic pole, said interpolar epoxidized block centre is offered porose, through the epoxidized block hold-down bolt interpolar epoxidized block is anchored on the rotor field spider; Said pole shoe is the convex structure that two ends have recessed table top, and said interpolar epoxidized block is the T type structure with trapezoidal head, and the T stage face of said interpolar epoxidized block is pressed on the recessed table top of said pole shoe.
Its further technical scheme is: said magnet steel is solid rectangular configuration.
Its further technical scheme is: two ends, said pole shoe bottom have groove, are buckled in said magnet steel top.
Its further technical scheme is: the groove on said base plate and the rotor field spider is trapezium structure, both matching and fixing.
The useful technique effect of the utility model is:
The convex structure that the pole shoe of the utility model adopts two ends to have recessed table top; The interpolar epoxidized block adopts head to be down trapezoidal T type structure; The mode of pushing down the sunk table top in pole shoe two ends with the T stage face of interpolar epoxidized block fixes whole magnetic pole; Save the step of on pole shoe, magnet steel, base plate and rotor field spider, beating the bolt hole fixed magnetic pole, simplified technological process greatly, reduced cost.
Description of drawings
Fig. 1 is the structure chart of the utility model.
Description of reference numerals: 1, pole shoe; 2, magnet steel; 3, base plate; 4, rotor field spider, 5, adherent epoxy strips; 6, epoxidized block hold-down bolt; 7, interpolar epoxidized block.
Embodiment
Further specify below in conjunction with the embodiment of accompanying drawing the utility model.
As shown in Figure 1, the utility model comprises pole shoe 1, magnet steel 2, base plate 3, rotor field spider 4, adherent epoxy strips 5, epoxidized block hold-down bolt 6 and interpolar epoxidized block 7.
Magnetic pole is made up of with pole shoe 1 magnet steel 2, base plate 3.At first the magnet steel 2 usefulness special toolings with segmentation bond on the trapezoidal base plate 3, then pole shoe 1 are bonded on the magnet steel 2.Magnet steel 2 is a rectangular configuration, and the centre does not need perforate, and processing is simple, and cost is low, and does not lose the magnetic flux of magnetic pole.Pole shoe 1 bottom adopts the groove shaped structure directly to be buckled in above the magnet steel 2, has not only protected magnet steel 2, and has strengthened motor properties.Pole shoe 1 top is a convex structure; This sunk table top in convex structure two ends contacts with the T stage face of interpolar epoxidized block 7; So that interpolar epoxidized block 7 is pushed down pole shoe 1; Both improved the air gap waveform, protected magnet steel 2 again, and prevented owing to reasons such as vibration cause the breakage of magnet steel 2 motor to be damaged in the motor operation course.Base plate 3 is a trapezium structure, closely cooperates with rotor field spider 4, can prevent that magnet steel 2 from throwing away.
Rotor field spider 4 is processed for ordinary steel, and cost is low, has the dovetail groove identical with motor pole number on its excircle, forms with trapezoidal base plate 3 to cooperate, to prevent that magnet steel 2 is owing to centrifugal force throws away.Bonding magnetic pole is pushed into through corresponding frock in the dovetail groove of rotor field spider 4, can prevents that magnet steel 2 from directly colliding with rotor field spider 4 and make magnet steel 2 damages.
Adherent epoxy strips 5 is bonded to the magnetic pole both sides, with epoxidized block hold-down bolt 6 the interpolar epoxidized block 7 that the centre has the hole is anchored between two adjacent magnetic poles at last, weaken the shearing force between the magnetic pole, make whole rotor structure compact, intensity is stronger.Interpolar epoxidized block 7 adopts head to be down trapezoidal T type structure; T stage face with interpolar epoxidized block 7 is pushed down pole shoe 1, plays the effect of fixed magnetic pole, has also saved the step of on pole shoe 1, magnet steel 2, base plate 3 and rotor field spider 4, beating the bolt hole fixed magnetic pole; Simplify technological process, reduce cost.
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 spirit that does not break away from the utility model and design, all should think to be included within the protection range of the utility model.
Claims (4)
1. the rotor magnetic pole structure of a magneto; Comprise a rotor field spider (4); Offer a plurality of grooves on the excircle of said rotor field spider (4), the magnetic pole that is formed by mutual bonding magnet steel (2), base plate (3) and pole shoe (1) is installed in each groove; Said base plate (3) is adhered to magnet steel (2) below, fixes with the groove fit of (4) on the rotor field spider; Said pole shoe (1) is adhered to magnet steel (2) top; Said magnet steel (2) both sides are bonded with adherent epoxy strips (5) respectively; Be provided with interpolar epoxidized block (7) between the said magnetic pole, said interpolar epoxidized block (7) centre is offered porose, through epoxidized block hold-down bolt (6) interpolar epoxidized block (7) is anchored on the rotor field spider (4); It is characterized in that: the convex structure that said pole shoe (1) has recessed table top for two ends, for to have down the T type structure of trapezoidal head, the T stage face of said interpolar epoxidized block (7) is pressed on the recessed table top of said pole shoe (1) said interpolar epoxidized block (7).
2. according to the rotor magnetic pole structure of the said magneto of claim 1, it is characterized in that: said magnet steel (2) is solid rectangular configuration.
3. according to the rotor magnetic pole structure of the said magneto of claim 1, it is characterized in that: two ends, said pole shoe (1) bottom have groove, are buckled in said magnet steel (2) top.
4. according to the rotor magnetic pole structure of the said magneto of claim 1, it is characterized in that: the groove on said base plate (3) and the rotor field spider (4) is trapezium structure, both matching and fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201057215U CN202550732U (en) | 2012-03-20 | 2012-03-20 | Rotor magnetic pole structure of permanent-magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201057215U CN202550732U (en) | 2012-03-20 | 2012-03-20 | Rotor magnetic pole structure of permanent-magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202550732U true CN202550732U (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201057215U Expired - Lifetime CN202550732U (en) | 2012-03-20 | 2012-03-20 | Rotor magnetic pole structure of permanent-magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202550732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545438A (en) * | 2012-03-20 | 2012-07-04 | 中科盛创（青岛）电气有限公司 | Rotor magnetic pole structure of permanent magnet motor |
-
2012
- 2012-03-20 CN CN2012201057215U patent/CN202550732U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545438A (en) * | 2012-03-20 | 2012-07-04 | 中科盛创（青岛）电气有限公司 | Rotor magnetic pole structure of permanent magnet motor |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |