CN205265394U - Rotor core and motor comprising same - Google Patents
Rotor core and motor comprising same Download PDFInfo
- Publication number
- CN205265394U CN205265394U CN201521139776.8U CN201521139776U CN205265394U CN 205265394 U CN205265394 U CN 205265394U CN 201521139776 U CN201521139776 U CN 201521139776U CN 205265394 U CN205265394 U CN 205265394U
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- rotor core
- steel groove
- diameter end
- main paragraph
- 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
Links
Abstract
The utility model provides a rotor core and motor comprising same. Rotor core includes: iron core body, a plurality of magnet steel slot set up on iron core body and set up along iron core body's circumference direction interval, and every magnet steel slot extends along iron core body's radial direction, and magnet steel slot has near the first end at rotor core center and the second end of keeping away from the rotor core center, a plurality of magnet steel, one -to -one set up in a plurality of magnet steel slot, wherein, having the spacing distance between the partly magnet steel slot's among a plurality of magnet steel slot the first end and forming the connection bridge, another part magnet steel slot's first end is connected. The position magnetic leakage of connecting the bridge can be followed in magnetic field, and in the technical scheme provide by the utility model, partly magnet steel slot's first end is connected rather than have the spacing distance and forms the connection bridge, and the connection bridge between the magnet steel has reduced, and leak magnetic phenomena and also reduce thereupon, the utility model discloses a rotor core and motor comprising same can reduce the magnetic leakage, the improve equipment performance.
Description
Technical field
The utility model relates to power-equipment, in particular to a kind of rotor core and have its motor.
Background technology
As shown in Figure 1, conventional tangential rotor structure comprises iron core body 10 ', magnet steel groove 20 ' and magnet steel 30 '. In order to reduceLeakage field conventionally need to be the attenuate of trying one's best of the width between magnetic pole, to reach the effect of restriction leakage field. But width is thinner between magnetic pole, magneticInterelectrode magnetic leakage is less, and every utmost point magnetic flux is higher, can improve power of motor density. But high-speed electric expreess locomotive reaches 1～20,000 when its rotating speedWhile turning, the high speed centrifugation power that its rotor core and magnet steel produce can cause rotor core edge weakness (between magnetic pole) fracture. AndAnd having rotor core part between magnetic pole is connecting bridge, and the leakage field of connecting bridge cannot reduce again, affect performance and the efficiency of motor.
Utility model content
Main purpose of the present utility model is to provide a kind of motor that can reduce the rotor core of leakage field and have it.
To achieve these goals, according to an aspect of the present utility model, provide a kind of rotor core, having comprised: iron core originallyBody; Multiple magnet steel grooves, are opened on iron core body and along the circumferential direction interval of iron core body and arrange, and each magnet steel groove is along iron coreThe radial direction of body is extended, and magnet steel groove has the first end at close rotor core center and the second end away from rotor core center;Multiple magnet steel, correspondence is arranged in multiple magnet steel grooves one by one; Wherein, the first end of a part of magnet steel groove in multiple magnet steel grooves itBetween have spacing distance form connecting bridge, the first end of another part magnet steel groove is connected.
Further, multiple magnet steel grooves form many group magnet steel groove groups, and every group of magnet steel groove group comprises two magnet steel grooves of adjacent setting,Between the first end of the magnet steel groove of two adjacent groups, form connecting bridge, the first end of two magnet steel grooves of every group of magnet steel groove group is connected.
Further, between the outer wall of magnet steel and the inwall of magnet steel groove, be provided with capsulation material.
Further, each magnet steel groove comprises: main paragraph, and magnet steel is arranged in main paragraph; The first positioning section, is arranged at main bodyThe outer edge of section is also connected with main paragraph.
Further, the first positioning section have first miner diameter end at close rotor core center and near the outer rim of rotor core theOne bigger diameter end, the first miner diameter end is connected with the outer edge of main paragraph, and the width of the first miner diameter end is less than the width of magnet steel to formThe first stopper section.
Further, the first positioning section is symmetrical arranged along the radial direction of iron core body.
Further, each magnet steel groove also comprises: the second positioning section, and be arranged at the interior acies of main paragraph and be connected with main paragraph,The second positioning section of two magnet steel grooves of every group of magnet steel groove group is connected, and the cell wall of the magnet steel groove at the first end place of two magnet steel groovesBe connected.
Further, the second positioning section have second miner diameter end at close rotor core center and near the outer rim of rotor core theTwo bigger diameter ends, the second bigger diameter end is connected with the interior acies of main paragraph, and the second miner diameter end is towards the direction shape of the outer rim of rotor coreBecome jut butt to the outer wall of magnet steel to form the second stopper section.
Further, the second miner diameter end has the inside rim of the both sides that are positioned at the second stopper section, and inside rim is and the axle of rotor coreThe circular arc that hole arranges with one heart.
Further, the second positioning section is symmetrical arranged along the radial direction of iron core body.
Further, the second stopper section comprises circular arc contact-making surface or straight flange contact-making surface.
According to an aspect of the present utility model, a kind of motor is provided, comprise rotor core, rotor core is above-mentioned rotorIron core.
Application the technical solution of the utility model, rotor core comprises iron core body, multiple magnet steel groove and multiple magnet steel. Multiple magneticSteel one by one correspondence is arranged in multiple magnet steel grooves. Magnet steel groove has the first end at close rotor core center and away from rotor coreThe second end of the heart, has spacing distance and forms connecting bridge, another portion between the first end of a part of magnet steel groove in multiple magnet steel groovesDivide the first end of magnet steel groove to be connected. Magnetic field can be from the position leakage field of connecting bridge, and in the technical solution of the utility model, oneThe first end of part magnet steel groove is connected instead of has spacing distance and forms connecting bridge, and it is magnetic pole that the connecting bridge between magnet steel has reducedBetween connecting bridge reduced, leakage field phenomenon also reduces thereupon, therefore rotor core of the present utility model and there is its motor canReduce leakage field, improve equipment performance.
Brief description of the drawings
The Figure of description that forms the application's a part is used to provide further understanding of the present utility model, of the present utility modelSchematic description and description is used for explaining the utility model, does not form improper restriction of the present utility model. In the accompanying drawings:
Fig. 1 shows according to the structural representation of the rotor core of prior art;
Fig. 2 shows the structural representation according to rotor core of the present utility model;
Fig. 3 shows the A place partial enlarged drawing of Fig. 2;
Fig. 4 shows according to the structural representation of magnet steel groove of the present utility model embodiment; And
Fig. 5 shows according to the structural representation of another embodiment of magnet steel groove of the present utility model.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10, iron core body; 20, magnet steel groove; 20a, connecting bridge; 21, main paragraph; 22, the first positioning section; 23, first onlyStopper; 24, the second positioning section; 25, the second stopper section; 30, magnet steel; 40, capsulation material; 50, the axis hole of rotor core.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As shown in Figures 2 and 3, the utility model provides a kind of rotor core.
Particularly, rotor core comprises iron core body 10, multiple magnet steel groove 20 and multiple magnet steel 30. Wherein, multiple magnet steel grooves20 are opened on iron core body 10, and multiple magnet steel grooves 20 arrange along the circumferential direction interval of iron core body 10, each magnet steel groove20 radial direction along iron core body 10 are extended. Magnet steel groove 20 has the first end at close rotor core center and away from rotor ironSecond end at core center, the first end of magnet steel groove 20 and the second end. Multiple magnet steel 30 one by one correspondence are arranged at multiple magnet steel grooves 20In, in each magnet steel groove 20, arrange in a magnet steel 30. Wherein, a part of magnet steel groove 20 in multiple magnet steel grooves 20Between first end, have spacing distance and form connecting bridge 20a, the first end of another part magnet steel groove 20 is connected. That is to say,Among multiple magnet steel grooves 20, between some adjacent magnet steel grooves 20, there is connecting bridge 20a, also have some adjacent magnet steel grooves 20First end i.e. two the magnet steel grooves 20 that are connected communicate with each other.
Magnetic field can be from the position leakage field of connecting bridge 20a, and in the technical solution of the utility model, of a part of magnet steel groove 20One end is connected instead of has spacing distance and forms connecting bridge 20a. It is between magnetic pole that the connecting bridge 20a that magnet steel is 30 has reducedConnecting bridge 20a has reduced, and leakage field phenomenon also reduces thereupon, and therefore rotor core of the present utility model and the motor with it can subtractFew leakage field, improves equipment performance.
Meanwhile, in the above-described embodiments, connecting bridge 20a reduces, rotor core weight reducing, reduction motor production cost.
Multiple magnet steel grooves 20 form many group magnet steel groove groups, and every group of magnet steel groove group comprises two magnet steel grooves 20 of adjacent setting, adjacent twoBetween the first end of the magnet steel groove 20 of group, form connecting bridge 20a, the first end of two magnet steel grooves 20 of every group of magnet steel groove group is connected.As shown in Figures 2 and 3, between the magnet steel groove 20 of two adjacent groups, there is spacing distance and be not connected each other, the magnet steel of two adjacent groupsBetween the first end of groove 20, form connecting bridge 20a, the adjacent magnet steel groove 20 in two, connecting bridge 20a interval. In every group of magnet steel groove groupTwo magnet steel grooves 20 be communicated with each other, the first end of these two magnet steel grooves 20 is connected to each other to make two magnet steel grooves 20Be connected.
As shown in Figure 2, between the outer wall of magnet steel 30 and the inwall of magnet steel groove 20, be provided with capsulation material 40. Capsulation material 40 canTo select non-magnet material, owing to being provided with for example non-leading of capsulation material 40 between the outer wall of magnet steel 30 and the inwall of magnet steel groove 20Magnetic material, has realized fixing in the radial direction of rotor core. Improved the overall degree of magnet steel 30 with rotor core, structure moreFor stable and firm.
Two magnet steel grooves 20 in every group of magnet steel groove group are communicated with each other, and the first end of these two magnet steel grooves 20 is connected to each otherSo that two magnet steel grooves 20 are connected. Two magnet steel grooves 20 are connected and have reduced connecting bridge 20a, the connecting bridge 20a of minimizingPart use non-magnet material plastic packaging to strengthen structural strength, further reduce leakage field, the performance of for example motor of lifting means.
As shown in Figure 4 and Figure 5, each magnet steel groove 20 comprises main paragraph 21 and the first positioning section 22. Wherein, main paragraph 21 leans onOne end of nearly rotor core is interior acies, and main paragraph 21 is outer edge away from one end of rotor core. Magnet steel 30 is arranged at main bodyIn section 21, magnet steel 30 is suitable with main paragraph 21. The first positioning section 22 is arranged at outer edge and the main paragraph of main paragraph 2121 are connected, and the first positioning section 22 is between main paragraph 21 and the outer rim of rotor core. The first positioning section 22 is interior to magnet steelBetween 30, fill capsulation material 40, to fix diametrically magnet steel 30 and to reduce leakage field.
Preferably, the first positioning section 22 have first miner diameter end at close rotor core center and near the outer rim of rotor core theOne bigger diameter end, the first miner diameter end is connected with the outer edge of main paragraph 21, and the width of the first miner diameter end is less than the width of magnet steel 30To form the first stopper section 23. The first stopper section 23 is two that are oppositely arranged. The first stopper section 23 is for fixing magnet steel 30,Overall structure is stablized more, reliable and safety. The first stopper section 23 is top shoulder structure, adopts the magnet steel of such top shoulder structureDisconnecting prevention structure, adaptive high-speed electric expreess locomotive.
The first positioning section 22 is symmetrical arranged along the radial direction of iron core body 10. Simple in structure and stable, be also easy to realize.
Further, each magnet steel groove 20 also comprises: the second positioning section 24, be arranged at main paragraph 21 interior acies and and main bodySection 21 is connected, and the second positioning section 24 of two magnet steel grooves 20 of every group of magnet steel groove group is connected, and two magnet steel grooves 20The cell wall of the magnet steel groove 20 at first end place is connected. In the second positioning section 24, fill capsulation material 40 between magnet steel 30, withFootpath is upwards fixed magnet steel 30 and is reduced leakage field.
The second positioning section 24 has the second largest footpath of second miner diameter end at close rotor core center and the outer rim of close rotor coreEnd, the second bigger diameter end is connected with the interior acies of main paragraph 21, and the second miner diameter end forms prominent towards the direction of the outer rim of rotor coreRise portion's butt to the outer wall of magnet steel 30 to form the second stopper section 25. The second positioning section 24 has the second miner diameter end and second largest footpathEnd, the second miner diameter end is near rotor core center, and the second bigger diameter end is near the outer rim of rotor core. Wherein, the second bigger diameter end withThe interior acies of main paragraph 21 is connected, and the second miner diameter end is between the first bigger diameter end and the center of rotor core. The second miner diameter endDirection towards the outer rim of rotor core forms jut, jut butt to the outer wall of magnet steel 30 to form the second stopper section 25,The second stopper section 25 is towards the inner projection of magnet steel groove 20. The second stopper section 25 is for fixing magnet steel 30, and overall structure moreStable, reliable and safety. The two ends of magnet steel 30 and perisporium are fixed by the mode of capsulation material, have reduced for top magnet steel 30Established angle width, has also reduced the leakage field at magnet steel 30 two ends.
In above-described embodiment, the first stopper section 23 and the second stopper section 25 are salient point location, and the first stopper section 23 and second onlyLocation, fixed structure that stopper 25 is projection. Use salient point location, ensures arranging evenly of magnet steel 30, makes Distribution of Magnetic Field moreAdd evenly, while preventing that magnet steel 30 from magnetizing, occur displacement simultaneously when the stressed or injection moulding of magnet.
The second miner diameter end has the inside rim of the both sides that are positioned at the second stopper section 25, and inside rim is same with the axis hole 50 of rotor coreThe circular arc that the heart arranges, structure is easy to realize and is stable.
Preferably, the second positioning section 24 is symmetrical arranged along the radial direction of iron core body 10. Simple in structure and stable, be also easy toRealize.
And then ground, the second stopper section 25 comprises circular arc contact-making surface or straight flange contact-making surface. Such contact face structure is simple, pushes againstThe effect of magnet steel 30 is also better.
According to an aspect of the present utility model, a kind of motor is provided, comprise rotor core, rotor core is above-mentioned rotorIron core. The connecting bridge part reducing is used non-magnet material plastic packaging to strengthen structural strength, further reduces leakage field, lifting motorEnergy. Connecting bridge 20a reduces, and magnetic interelectrode magnetic leakage further reduces, and lifting motor performance improves power of motor density. Such machineReliable when structure can ensure at a high speed (up to ten thousand turning) rotation, also ensure that motor is in the time running up simultaneously, have higher power because ofNumber, performance is better.
Rotor punching structure of the present utility model, builds up iron core after punching press, between adjacent two rotor cores, rotate 45 degree. To be manyIn the alternate magnet steel groove 20 being embedded in successively on rotor core of individual magnet steel 30, form rotor unit. By the rotor after mounting magnetic steel,Carry out integral molded plastic. Finally, by good integral molded plastic means such as plastic package die for rotor, implement to magnetize, make rotor unit, uniform N,S。
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
Magnetic field can be from the position leakage field of connecting bridge 20a, and in the technical solution of the utility model, of a part of magnet steel groove 20One end is connected instead of has spacing distance and forms connecting bridge 20a. It is between magnetic pole that the connecting bridge 20a that magnet steel is 30 has reducedConnecting bridge 20a has reduced, and leakage field phenomenon also reduces thereupon, and therefore rotor core of the present utility model and the motor with it can subtractFew leakage field, improves equipment performance.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for this areaTechnical staff, the utility model can have various modifications and variations. All within spirit of the present utility model and principle, instituteDo any amendment, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (12)
1. a rotor core, is characterized in that, comprising:
Iron core body (10);
Multiple magnet steel grooves (20), are opened in described iron core body (10) upper and along the circumferential side of described iron core body (10)Arrange to interval, each described magnet steel groove (20) extends along the radial direction of described iron core body (10), described magnet steelGroove (20) has the first end at close rotor core center and the second end away from described rotor core center;
Multiple magnet steel (30), correspondence is arranged in multiple described magnet steel grooves (20) one by one;
Wherein, described in the part in described multiple magnet steel grooves (20), between the described first end of magnet steel groove (20), haveSpacing distance forms connecting bridge (20a), and the described first end of magnet steel groove (20) is connected described in another part.
2. rotor core according to claim 1, is characterized in that, described multiple magnet steel grooves (20) form many group magnet steel groovesGroup, described in every group, magnet steel groove group comprises two described magnet steel grooves (20) of adjacent setting, the described magnet steel groove (20) of two adjacent groupsDescribed first end between form described connecting bridge (20a), two of magnet steel groove group described magnet steel grooves (20) described in every groupDescribed first end is connected.
3. rotor core according to claim 2, is characterized in that, the outer wall of described magnet steel (30) and described magnet steel groove (20)Inwall between be provided with capsulation material (40).
4. rotor core according to claim 3, is characterized in that, each described magnet steel groove (20) comprising:
Main paragraph (21), described magnet steel (30) is arranged in described main paragraph (21);
The first positioning section (22), is arranged at the outer edge of described main paragraph (21) and is connected with described main paragraph (21).
5. rotor core according to claim 4, is characterized in that, described the first positioning section (22) have near described in turnThe first miner diameter end of sub-core center and near the first bigger diameter end of the outer rim of described rotor core, described the first miner diameter end withThe outer edge of described main paragraph (21) is connected, and the width of described the first miner diameter end is less than the width of described magnet steel (30)To form the first stopper section (23).
6. according to the rotor core described in claim 4 or 5, it is characterized in that, described the first positioning section (22) is along described iron coreThe radial direction of body (10) is symmetrical arranged.
7. rotor core according to claim 4, is characterized in that, each described magnet steel groove (20) also comprises:
The second positioning section (24), is arranged at the interior acies of described main paragraph (21) and is connected with described main paragraph (21),Described in every group, described second positioning section (24) of two of magnet steel groove group described magnet steel grooves (20) is connected, and two institutesThe cell wall of stating the described magnet steel groove (20) at the described first end place of magnet steel groove (20) is connected.
8. rotor core according to claim 7, is characterized in that, described the second positioning section (24) have near described in turnThe second miner diameter end of sub-core center and near the second bigger diameter end of the outer rim of described rotor core, described the second bigger diameter end withThe interior acies of described main paragraph (21) is connected, and described the second miner diameter end is towards the direction shape of the outer rim of described rotor coreBecome jut butt to the outer wall of described magnet steel (30) to form the second stopper section (25).
9. rotor core according to claim 8, is characterized in that, described the second miner diameter end has and is positioned at described the second backstopThe inside rim of the both sides of portion (25), described inside rim is and the circular arc of the concentric setting of axis hole (50) of described rotor core.
10. according to the rotor core described in any one in claim 7 to 9, it is characterized in that described the second positioning section (24) edgeThe radial direction of described iron core body (10) is symmetrical arranged.
11. rotor cores according to claim 8, is characterized in that, described the second stopper section (25) comprises circular arc contactFace or straight flange contact-making surface.
12. 1 kinds of motors, comprise rotor core, it is characterized in that, described rotor core is in claim 1 to 11 described in any oneRotor core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139776.8U CN205265394U (en) | 2015-12-29 | 2015-12-29 | Rotor core and motor comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139776.8U CN205265394U (en) | 2015-12-29 | 2015-12-29 | Rotor core and motor comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205265394U true CN205265394U (en) | 2016-05-25 |
Family
ID=56006898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521139776.8U Expired - Fee Related CN205265394U (en) | 2015-12-29 | 2015-12-29 | Rotor core and motor comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205265394U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471140A (en) * | 2015-12-29 | 2016-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor iron core and motor equipped with same |
| CN109104013A (en) * | 2017-06-21 | 2018-12-28 | 发那科株式会社 | Rotor and rotating electric machine |
| CN112953056A (en) * | 2021-01-25 | 2021-06-11 | 格力电器（武汉）有限公司 | Rotor subassembly and have its motor |
-
2015
- 2015-12-29 CN CN201521139776.8U patent/CN205265394U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471140A (en) * | 2015-12-29 | 2016-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor iron core and motor equipped with same |
| CN109104013A (en) * | 2017-06-21 | 2018-12-28 | 发那科株式会社 | Rotor and rotating electric machine |
| CN109104013B (en) * | 2017-06-21 | 2020-03-03 | 发那科株式会社 | Rotor and rotating electrical machine |
| CN112953056A (en) * | 2021-01-25 | 2021-06-11 | 格力电器（武汉）有限公司 | Rotor subassembly and have its motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105471140A (en) | Rotor iron core and motor equipped with same | |
| CN104882978B (en) | A kind of low torque ripple high efficiency permanent magnet motor stator and rotor structure | |
| CN204030755U (en) | A kind of rotor and apply its plastic packaging motor | |
| CN108110980A (en) | Mid-series type has the adjustable flux electric machine of hybrid permanent magnet of passive adjustable magnetic magnetic barrier | |
| CN205265394U (en) | Rotor core and motor comprising same | |
| CN203942346U (en) | A kind of rotor | |
| CN107994702A (en) | Rotor and magneto | |
| CN204089558U (en) | The stator of magnetoresistance transformer and magnetoresistance transformer | |
| CN205304437U (en) | Rotor core and motor comprising same | |
| CN104753213B (en) | Non-brush permanent-magnet DC motor | |
| CN205407444U (en) | Surface mosaic formula selfstarting permanent magnet synchronous motor rotor | |
| CN107231048A (en) | Motor, embedded rotor, rotor core and its rotor punching | |
| CN105305685A (en) | Permanent magnet synchronous direct-drive motor | |
| CN103501067B (en) | The rotor of motor | |
| CN206149052U (en) | Rotor and permanent -magnet machine | |
| CN207117335U (en) | Built-in permanent magnet motor rotor and magneto | |
| CN202524195U (en) | Same-polarity type rotor of rotary motor | |
| CN108768026A (en) | Rotor and magneto | |
| CN214205130U (en) | Permanent magnet synchronous motor rotor | |
| CN105790465B (en) | P-m rotor and motor | |
| CN107332405A (en) | The manufacture method of skewed pole rotor | |
| CN204681182U (en) | A kind of Novel servo permanent-magnetic synchronous motor rotor | |
| CN209170078U (en) | Flat type permanent-magnet servo motor built in a kind of low inertia | |
| CN106549521A (en) | A kind of high torque density durface mounted permanent magnet reluctance-synchronous machine rotor structure | |
| CN206250867U (en) | A kind of rotor structure of switched reluctance motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20211229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |