CN202183658U - Magnetic tile fixing structure of permanent magnet motor rotor - Google Patents
Magnetic tile fixing structure of permanent magnet motor rotor Download PDFInfo
- Publication number
- CN202183658U CN202183658U CN2011203163888U CN201120316388U CN202183658U CN 202183658 U CN202183658 U CN 202183658U CN 2011203163888 U CN2011203163888 U CN 2011203163888U CN 201120316388 U CN201120316388 U CN 201120316388U CN 202183658 U CN202183658 U CN 202183658U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- fixing
- jump ring
- magnetic shoe
- rotor core
- 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 - Lifetime
Links
Images
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a magnetic tile fixing structure of a permanent magnet motor rotor, which belongs to the technical field of the permanent magnet motor rotor and comprises a rotor core, at least two fixing pieces and magnetic tiles which are arranged on the outer ring face of the rotor core and located between two adjacent fixing pieces. At least two semi-closed fixing grooves are arranged on the yoke portion of the rotor core. Each fixing piece is a snap spring clamp, the head portion of each fixing piece extends to form two locating clamp feet, after all the snap spring clamps are inserted in the fixing grooves, the head portions of the snap spring clamps act on the walls of the fixing grooves in tensioning mode, and the two locating clamp feet of the snap spring clamps press tightly adjacent lateral faces of adjacent magnetic tiles. By means of the structure, the snap spring clamps can be reliably fixed on the rotor core, the magnetic tiles can be easily inserted and embedded among the snap spring clamps and then obtain reliable fixing, the lateral faces of the magnetic tiles are tightly limited in the locating clamp feet of the snap spring clamps without any screws or other fastening pieces, and the motor can be ensured not to have circumferential displacement during long time working. The magnetic tile fixing structure of the permanent magnet motor rotor is ingenious in design, compact and reasonable in structure, easy to install, reliable in fixing and low in cost, and improves working efficiency of the motor.
Description
[technical field]
The utility model relates to technical field of motors, particularly relates to the permanent magnet machine rotor technical field, specifically is meant a kind of magnetic shoe fixed structure of permanent magnet machine rotor.
[background technology]
In prior art; Permanent magnet machine rotor comprises armature spindle, rotor core and is fixed on the permanent magnet on the rotor core; Several kinds of the main ferrite of permanent magnet, aluminium nickel brill, shirt brill and neodymium iron borons etc.; The secure fixation of permanent magnet is most important for the normal operation of motor, and its mounting structure then directly has influence on the efficiency of assembling of rotor, and modal installation site is that permanent magnet is installed in the outer ring surface of rotor core or is installed in the groove of the confession permanent magnet setting-in that rotor core offers.Before a kind of mode adopt the bonding agent method usually; This method exists following not enough: 1, because motor permanent magnet when high speed rotating need bear very large centrifugal force; Permanent magnet takes place to be got rid of to take off phenomenon easily, has certain potential safety hazard, influences the operate as normal of motor; 2, along with the passing of the operating time temperature rise of especially working causes the glue accelerated ageing, cause that finally permanent magnet peels off; 3, the interference from human factor of artificial gluing is big, influences the stability of batch jobs; 4, glue curing needs the time dry, and production efficiency is low.To above-mentioned variety of problems, on the basis that is adhesively fixed, the solution that adopts at present is hard magnetic body fixed cover of additional designs; It is sleeved on the permanent magnet outer surface; But the adverse effect of so bringing is to cause the stator and rotor air gap to increase, and also has securing members such as adopting screw that the method for the fastening location of permanent magnet is prevented that it from coming off, and this just increases operation and labour cost; Complex installation process, efficient is greatly affected during batch process.And some permanent magnets are embedded in the mode in each holddown groove of rotor core, and because each magnet is not close to, must keeps the technology gap of 0.5mm each other at least, thereby cause leakage field, influence electric efficiency.
Therefore, need to adopt a kind of new fixed structure, it can make permanent magnet firmly be fixed on the outer ring surface of rotor core, thereby reduces failure rate, prolongs motor useful life.
[utility model content]
The technical problem that the utility model will solve is to overcome the deficiency that above-mentioned prior art exists and a kind of simple for structure, magnetic shoe is easy for installation and fixedly reliability is high permanent magnet machine rotor magnetic shoe fixed structure is provided.
For addressing the above problem, the technical scheme of the utility model is following:
The magnetic shoe fixed structure of permanent magnet machine rotor; Comprise a rotor core, at least two fixtures and be located at the magnetic shoe between adjacent two fixtures of rotor core outer ring surface; Yoke portion at said rotor core offers two holddown grooves that are the semi-closed shape at least; Said fixture is the jump ring folder, and the jump ring folder extends two location pinches from its head, after each jump ring folder is inserted in corresponding holddown groove; Its head tension is in fixing cell wall, and its two location pinch all presses the adjacent side of adjacent magnetic shoe.
Above-mentioned jump ring folder cross sectional curve becomes approximate " Ω " shape, and the said fixing groove has and the suitable sub-circular of jump ring folder.
The low magnetic conduction jump ring folder that above-mentioned jump ring folder is processed by the low magnetic stainless steel thin plate of rubber-like.
Jump ring is clipped in material and selects to go up the low magnetic stainless steel of employing, can play the effect that reduces leakage field.
Above-mentioned magnetic shoe thick middle both sides are thin.
This magnetic shoe is designed with and is beneficial to its convenient and swift being mounted between the jump ring folder.
Compared with prior art, the beneficial effect of the utility model is following:
Because the holddown groove of semi-closed shape has been offered in the yoke portion of rotor core in novelty ground, and the supporting design of jump ring folder, makes jump ring hold to be fixed in reliably on the rotor core; And magnetic shoe is planted like a cork and is mounted to that the back obtains secure fixation between the jump ring folder, and the magnetic shoe side firmly is limited in the location pinch of jump ring folder, jump ring folder and magnetic shoe all need not any screw etc. securing member; Motor works long hours and can guarantee that circumferential displacement does not take place magnetic shoe, and design is unique, and is simple for structure reasonable; Install simple; Fixing reliable, with low cost, overcome and adopted the low drawback of poor reliability, installation effectiveness that the adhesive securement magnetic shoe is brought; Improve motor working efficiency, therefore had certain significance of application.
[description of drawings]
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of magnetic shoe;
Fig. 3 is the structural representation of jump ring folder.
[embodiment]
In order more to be expressly understood the technology contents of the utility model, to lift following examples at present and be elaborated.
See also Fig. 1～shown in Figure 3; The magnetic shoe fixed structure of the utility model permanent magnet machine rotor; It comprises a rotor core 1, at least two fixtures and is located at the magnetic shoe 3 between adjacent two fixtures of rotor core 1 outer ring surface (fixture of the utility model is a jump ring folder 2, has 6, and magnetic shoe 3 has 6); Yoke portion 11 at rotor core 1 offers two holddown grooves 12 (holddown groove 12 of the utility model has 6) that are the semi-closed shape at least; Jump ring folder 2 extends two location pinches 22 from its head 21, and after the head 21 of each jump ring folder 2 was inserted in corresponding holddown groove 12,21 tension of head were in fixing cell wall; And its two location pinch 22 all presses the adjacent side of adjacent magnetic shoe 3, adjacent pinch 22 corresponding fixedly a slice magnetic shoes 3 of promptly adjacent two jump rings folder 2.
Jump ring presss from both sides 2 cross sectional curve and becomes approximate " Ω " shape; Magnetic shoe 3 thick middle both sides are thin, and its inner surface configuration trend was suitable with the side view of magnetic shoe 3 when location pinch 22 worked, and holddown groove 12 has with jump ring and presss from both sides 2 suitable sub-circulars; Its notch is shrunk to semiclosed shape; Location pinch 22 has stronger elasticity, and location pinch 22 also has stronger elasticity with the changeover portion of head 21, after jump ring after compression presss from both sides 2 heads 21 and is positioned over holddown groove 12; The elastic force that jump ring folder 2 discharges makes its changeover portion tightly be stuck in the notch place of holddown groove 12; Locate 22 of pinches simultaneously and tightly limit magnetic shoe 3 activities, so jump ring folder 2 need not could be fixing with stator core 1 by means of screw, magnetic shoe 3 also need not could be fixing with stator core 1 by means of screw or bonding agent.
The circumferential turning power that when the motor high speed rotating, produces can make location pinch 22 that magnetic shoe 3 is tightly clamped, and the sidewall of jump ring folder 2 then tightly is affixed on holddown groove 12 sidewalls.
The low magnetic conduction jump ring folder that jump ring folder 2 is processed by the low magnetic stainless steel thin plate of rubber-like.
When the utility model is specifically installed, earlier head 21 holdings of jump ring folder 2 in holddown groove 12, planting magnetic shoe 3 to then gets final product between the two adjacent positioned pinches 22 of adjacent jump ring folder 2.
The above; It only is the preferred embodiment of the utility model; Be not to be the restriction of the utility model being made other form; Any professional and technical personnel of being familiar with should learn directly derive or associate in the disclosed content of the utility model all the distortion, every with the utlity model has identical or close technical scheme, all still belong to the protection range of the utility model.
Claims (4)
1. the magnetic shoe fixed structure of a permanent magnet machine rotor; Comprise a rotor core, at least two fixtures and be located at the magnetic shoe between adjacent two fixtures of rotor core outer ring surface; It is characterized in that: the yoke portion at said rotor core offers two holddown grooves that are the semi-closed shape at least; Said fixture is the jump ring folder, and the jump ring folder extends two location pinches from its head, after each jump ring folder is inserted in corresponding holddown groove; Its head tension is in fixing cell wall, and its two location pinch all presses the adjacent side of adjacent magnetic shoe.
2. the magnetic shoe fixed structure of permanent magnet machine rotor according to claim 1 is characterized in that: " Ω " shape that said jump ring folder cross sectional curve becomes to be similar to, the sub-circular that said holddown groove has and the jump ring folder is suitable.
3. the magnetic shoe fixed structure of permanent magnet machine rotor according to claim 1 and 2 is characterized in that: the low magnetic conduction jump ring folder that said jump ring folder is processed by the low magnetic stainless steel thin plate of rubber-like.
4. the magnetic shoe fixed structure of permanent magnet machine rotor according to claim 3 is characterized in that: said magnetic shoe thick middle both sides are thin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203163888U CN202183658U (en) | 2011-08-17 | 2011-08-17 | Magnetic tile fixing structure of permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203163888U CN202183658U (en) | 2011-08-17 | 2011-08-17 | Magnetic tile fixing structure of permanent magnet motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202183658U true CN202183658U (en) | 2012-04-04 |
Family
ID=46176679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203163888U Expired - Lifetime CN202183658U (en) | 2011-08-17 | 2011-08-17 | Magnetic tile fixing structure of permanent magnet motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202183658U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066726A (en) * | 2012-12-14 | 2013-04-24 | 杜小兵 | Motor rotor with novel magnetic source fixing structure |
| CN104158328A (en) * | 2014-09-01 | 2014-11-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and motor rotor thereof |
| CN107689697A (en) * | 2017-09-29 | 2018-02-13 | 深圳市大地和电气股份有限公司 | Brshless DC motor |
-
2011
- 2011-08-17 CN CN2011203163888U patent/CN202183658U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066726A (en) * | 2012-12-14 | 2013-04-24 | 杜小兵 | Motor rotor with novel magnetic source fixing structure |
| CN103066726B (en) * | 2012-12-14 | 2015-08-05 | 杜小兵 | With the rotor of novel magnetic source fixed structure |
| CN104158328A (en) * | 2014-09-01 | 2014-11-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and motor rotor thereof |
| CN107689697A (en) * | 2017-09-29 | 2018-02-13 | 深圳市大地和电气股份有限公司 | Brshless DC motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204168098U (en) | Permanent-magnetic synchronous motor rotor | |
| CN204089385U (en) | A kind of energy conserving motor rotor assembly | |
| CN204089544U (en) | External rotor electric machine | |
| CN202183658U (en) | Magnetic tile fixing structure of permanent magnet motor rotor | |
| CN2779708Y (en) | Permanent-magnet synchronous machine rotor | |
| CN201398102Y (en) | Rotor of permanent-magnet wind-driven generator | |
| CN202513701U (en) | Brushless driving motor rotor | |
| CN210431059U (en) | Stator and rotor core punching sheet of permanent magnet motor | |
| CN201051686Y (en) | Electromotor permanent magnetic rotor | |
| CN108832744B (en) | Surface-mounted permanent magnet motor magnetic pole structure and preparation method thereof | |
| CN105262258B (en) | A kind of rotor magnetic shoe installation fixed structure | |
| CN201813232U (en) | Permanent magnet motor rotor | |
| CN216356155U (en) | Asynchronous rotor permanent magnetization structure and motor | |
| CN107070028B (en) | Permanent magnet motor rotor with low magnetic leakage and motor | |
| CN201323479Y (en) | Brushless permanent magnet motor rotor | |
| CN210517927U (en) | Permanent magnet electric roller magnetic steel fixing structure | |
| CN208581099U (en) | A kind of higher motor of mounting stability | |
| CN210724520U (en) | Birotor disk type hub permanent magnet synchronous motor | |
| CN203014527U (en) | Brushless motor rotor device | |
| CN202997899U (en) | Stator & rotor that can be positioned and is used for direct current brushless motor | |
| CN211151641U (en) | Motor stator | |
| CN205356095U (en) | Directly drive permanent -magnet machine rotor magnet steel pressure equipment structure | |
| CN203607948U (en) | Rotor of servo motor | |
| CN211239590U (en) | Decoupling permanent magnet decoupling clutch | |
| CN201352731Y (en) | Permanent-magnetic motor rotor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120404 |
|
| CX01 | Expiry of patent term |