CN203883573U - Motor rotor and permanent-magnet synchronous motor using same - Google Patents
Motor rotor and permanent-magnet synchronous motor using same Download PDFInfo
- Publication number
- CN203883573U CN203883573U CN201420270084.6U CN201420270084U CN203883573U CN 203883573 U CN203883573 U CN 203883573U CN 201420270084 U CN201420270084 U CN 201420270084U CN 203883573 U CN203883573 U CN 203883573U
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- rotor
- draw
- rotor core
- grooves
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 19
- 238000004080 punching Methods 0.000 claims abstract description 15
- 238000001746 injection moulding Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a motor rotor and a permanent-magnet synchronous motor using the same. The motor rotor comprises a rotor core which is formed by laminating a plurality of rotor punching sheets, and a plurality of permanent magnets, wherein the center of the rotor core is provided with a shaft hole, the outer side edge of the rotor core is provided with a plurality of clamping grooves, the permanent magnets are embedded in the clamping grooves, and a plurality of lightening holes are formed between the shaft hole and the clamping grooves and in the rotor core circumferentially. The motor rotor is characterized in that an insulating sleeve is embedded and sleeved in each lightening hole. The structure of the motor rotor is simple, the weight of the motor rotor can be reduced to the maximum on the premise of ensuring the strength and magnetic performance of the motor rotor, the rotor punching sheets are laminated more tightly, the sheet wrapping problem of the rotor punching sheets is effectively solved, the manufacturing and processing are convenient, and the cost is low.
Description
Technical field:
The utility model relates to the permagnetic synchronous motor of a kind of rotor and application thereof.
Background technology:
Along with haze increases the weight of, the application of new-energy automobile is more and more in widespread attention, and pure electric automobile is especially paid close attention to especially.But pure electric automobile is due to battery capacity and efficiency at present, and flying power is generally not long.Before battery problems is not resolved, force the construction weight of pure electric automobile own effectively to alleviate, to improve flying power.Therefore proposed pure electric automobile to drive the loss of weight requirement with permagnetic synchronous motor.
As shown in Figure 1, the rotor that permagnetic synchronous motor is used at present offers axis hole A1 in centre at rotor core A, on the outer ledge of rotor core A, offer the draw-in groove A2 that some symmetrical V fonts are arranged, but the quality of rotor of motor weight of this structure, increase the weight of pure electric automobile, affect its flying power, and the cost of rotor core is higher.Also have at present and on rotor core, offer some lightening holes to reduce the weight of rotor, but this motor rotor construction intensity and torsional strength are poor, easily infringement, and in the place of offering lightening hole, easily there is the phenomenon of fin in rotor core, the poor reliability of motor performance.
Summary of the invention:
The purpose of this utility model is to provide the permagnetic synchronous motor of a kind of rotor and application thereof, this motor rotor construction is simple, is ensureing, under the prerequisite of rotor intensity and magnetic property, to reduce to greatest extent the weight of rotor, and rotor punching is stacked tightr, effectively solve the problem of rotor punching fin, manufacture easy to processly, cost is low, this permanent magnetic synchronous motor structure is simple, lightweight, flying power is strong, and the Performance And Reliability of motor is high.
The purpose of this utility model is achieved by following technical proposals.
A kind of rotor, comprise the rotor core and the some permanent magnets that are laminated by some rotor punchings, in the middle of rotor core, offer axis hole, on the outer ledge of rotor core, offer some draw-in grooves, permanent magnet embeds and is arranged on draw-in groove the inside, between axis hole and draw-in groove, on rotor core, circumferentially offering some lightening holes, it is characterized in that: at the nested insulating case that is provided with in lightening hole the inside.
Insulating case described above is that injection moulding is arranged on lightening hole the inside.
Lightening hole described above is circumferentially evenly arranged on rotor core, and the distance of adjacent two lightening hole roots is greater than 1.5mm.
On the outer ledge of rotor core described above, offer some through holes.
Some draw-in grooves described above comprise some draw-in grooves of arranging to being in the shape of the letter V, and described through hole is opened in and is in the shape of the letter V between two draw-in grooves of arranging.
A kind of permagnetic synchronous motor, comprise rotating shaft, rotor assembly, stator module, casing and end cap, rotor assembly is arranged in rotating shaft, stator module and casing are installed together and are nested in rotor assembly outside, end cap is arranged on casing two ends, shaft support is on the bearing of two end cap, described rotor assembly comprises the rotor core and the some permanent magnets that are laminated by some rotor punchings, in the middle of rotor core, offer axis hole, on the outer ledge of rotor core, offer some draw-in grooves, permanent magnet embeds and is arranged on draw-in groove the inside, between axis hole and draw-in groove, on rotor core, circumferentially offer some lightening holes, it is characterized in that: at the nested insulating case that is provided with in lightening hole the inside.
Insulating case described above is that injection moulding is arranged on lightening hole the inside.
Lightening hole described above is circumferentially evenly arranged on rotor core, and the distance of adjacent two lightening hole roots is greater than 1.5mm.
On the outer ledge of rotor core described above, offer some through holes.
Some draw-in grooves described above comprise some draw-in grooves of arranging to being in the shape of the letter V, and described through hole is opened in and is in the shape of the letter V between two draw-in grooves of arranging.
The utility model compared with prior art, there is following effect: 1) at the nested insulating case that is provided with in lightening hole the inside, this motor rotor construction is simple, ensureing under the prerequisite of rotor intensity and magnetic property, can reduce to greatest extent the weight of rotor, and rotor punching is stacked tightr, effectively solves the problem of rotor punching fin, manufacture easy to processly, cost is low; 2) distance of adjacent two lightening hole roots is greater than 1.5mm, effectively ensures the structural strength of rotor; 3) on the outer ledge of rotor core, offer some through holes, further reduce the weight of rotor; 4) this permanent magnetic synchronous motor structure is simple, lightweight, and flying power is strong, and the Performance And Reliability of motor is high.
Brief description of the drawings:
Fig. 1 is the stereogram of existing rotor;
Fig. 2 is the stereogram of the utility model rotor;
Fig. 3 is the exploded view of the utility model rotor;
Fig. 4 is the vertical view of the utility model rotor;
Fig. 5 is A-A cutaway view in Fig. 4;
Fig. 6 is the stereogram of the utility model permagnetic synchronous motor;
Fig. 7 is the cutaway view of the utility model permanent-magnet synchronous synchronous machine.
Embodiment:
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Embodiment mono-: as shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the utility model is a kind of rotor, comprise the rotor core 1 and the some permanent magnets 2 that are laminated by some rotor punchings, in the middle of rotor core 1, offer axis hole 11, on the outer ledge of rotor core 1, offer some draw-in grooves 12, permanent magnet 2 embeds and is arranged on draw-in groove 12 the insides, between axis hole 11 and draw-in groove 12, on rotor core 1, circumferentially offer some lightening holes 13, the nested insulating case 3 that is provided with in lightening hole 13 the insides.Insulating case 3 is that injection moulding is arranged on lightening hole 13 the insides.
Lightening hole 13 is circumferentially evenly arranged on rotor core 1, and the distance L of adjacent two lightening hole 13 roots is greater than 1.5mm.On the outer ledge of rotor core 1, offer some through holes 14.Some draw-in grooves 12 comprise some draw-in grooves of arranging to being in the shape of the letter V 12, and described through hole 14 is opened in and is in the shape of the letter V between two draw-in grooves 12 of arranging.
Principle of the present utility model is: the nested insulating case 3 that is provided with in lightening hole 13 the insides, this is simple in structure, ensureing under the prerequisite of rotor intensity and magnetic property, can reduce to greatest extent the weight of rotor, and rotor punching is stacked tightr, effectively solve the problem of rotor punching fin, manufacture easy to processly, cost is low.
Embodiment bis-: as shown in Figures 2 to 7, the utility model is a kind of permagnetic synchronous motor, comprise rotating shaft 4, rotor assembly 5, stator module 6, casing 7 and end cap 8, rotor assembly 5 is arranged in rotating shaft 4, stator module 6 and casing 7 are installed together and are nested in rotor assembly 5 outsides, end cap 8 is arranged on casing 7 two ends, rotating shaft 4 is bearing on the bearing of two end cap 8, rotor assembly 5 comprises the rotor core 1 and the some permanent magnets 2 that are laminated by some rotor punchings, in the middle of rotor core 1, offer axis hole 11, on the outer ledge of rotor core 1, offer some draw-in grooves 12, permanent magnet 2 embeds and is arranged on draw-in groove 12 the insides, between axis hole 11 and draw-in groove 12, on rotor core 1, circumferentially offer some lightening holes 13, the nested insulating case 3 that is provided with in lightening hole 13 the insides.Insulating case 3 is that injection moulding is arranged on lightening hole 13 the insides.Lightening hole 13 is circumferentially evenly arranged on rotor core 1, and the distance L of adjacent two lightening hole 13 roots is greater than 1.5mm.On the outer ledge of rotor core 1, offer some through holes 14.Some draw-in grooves 12 comprise some draw-in grooves of arranging to being in the shape of the letter V 12, and described through hole 14 is opened in and is in the shape of the letter V between two draw-in grooves 12 of arranging.
Above embodiment is preferred embodiments of the present invention; but embodiments of the present invention are not limited to this; other are any does not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitute, combination, simplify; be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (10)
1. a rotor, comprise the rotor core (1) and the some permanent magnets (2) that are laminated by some rotor punchings, in the middle of rotor core (1), offer axis hole (11), on the outer ledge of rotor core (1), offer some draw-in grooves (12), permanent magnet (2) embeds and is arranged on draw-in groove (12) the inside, between axis hole (11) and draw-in groove (12), on rotor core (1), circumferentially offer some lightening holes (13), it is characterized in that: at the nested insulating case (3) that is provided with in lightening hole (13) the inside.
2. a kind of rotor according to claim 1, is characterized in that: described insulating case (3) is that injection moulding is arranged on lightening hole (13) the inside.
3. a kind of rotor according to claim 1 and 2, it is characterized in that: it is upper that lightening hole (13) is circumferentially evenly arranged in rotor core (1), and the distance (L) of adjacent two lightening holes (13) root is greater than 1.5mm.
4. a kind of rotor according to claim 1 and 2, is characterized in that: on the outer ledge of rotor core (1), offer some through holes (14).
5. a kind of rotor according to claim 4, it is characterized in that: some draw-in grooves (12) comprise some draw-in grooves of arranging to being in the shape of the letter V (12), described through hole (14) is opened in and is in the shape of the letter V between two draw-in grooves (12) of arranging.
6. a permagnetic synchronous motor, comprise rotating shaft (4), rotor assembly (5), stator module (6), casing (7) and end cap (8), rotor assembly (5) is arranged in rotating shaft (4), stator module (6) and casing (7) are installed together and are nested in rotor assembly (5) outside, end cap (8) is arranged on casing (7) two ends, rotating shaft (4) is bearing on the bearing of two end cap (8), described rotor assembly (5) comprises the rotor core (1) and the some permanent magnets (2) that are laminated by some rotor punchings, in the middle of rotor core (1), offer axis hole (11), on the outer ledge of rotor core (1), offer some draw-in grooves (12), permanent magnet (2) embeds and is arranged on draw-in groove (12) the inside, between axis hole (11) and draw-in groove (12), on rotor core (1), circumferentially offer some lightening holes (13), it is characterized in that: at the nested insulating case (3) that is provided with in lightening hole (13) the inside.
7. a kind of permagnetic synchronous motor according to claim 6, is characterized in that: described insulating case (3) is that injection moulding is arranged on lightening hole (13) the inside.
8. according to a kind of permagnetic synchronous motor described in claim 6 or 7, it is characterized in that: it is upper that lightening hole (13) is circumferentially evenly arranged in rotor core (1), and the distance (L) of adjacent two lightening holes (13) root is greater than 1.5mm.
9. according to a kind of permagnetic synchronous motor described in claim 6 or 7, it is characterized in that: on the outer ledge of rotor core (1), offer some through holes (14).
10. a kind of permagnetic synchronous motor according to claim 9, it is characterized in that: some draw-in grooves (12) comprise some draw-in grooves of arranging to being in the shape of the letter V (12), described through hole (14) is opened in and is in the shape of the letter V between two draw-in grooves (12) of arranging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270084.6U CN203883573U (en) | 2014-05-26 | 2014-05-26 | Motor rotor and permanent-magnet synchronous motor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270084.6U CN203883573U (en) | 2014-05-26 | 2014-05-26 | Motor rotor and permanent-magnet synchronous motor using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203883573U true CN203883573U (en) | 2014-10-15 |
Family
ID=51684039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420270084.6U Expired - Lifetime CN203883573U (en) | 2014-05-26 | 2014-05-26 | Motor rotor and permanent-magnet synchronous motor using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203883573U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186818A (en) * | 2015-09-14 | 2015-12-23 | 常州市普世汽车电动系统有限公司 | Permanent magnet synchronous motor with hybrid magnetic circuit arrangement |
| CN105958767A (en) * | 2016-05-11 | 2016-09-21 | 山东理工大学 | Built-in radial rare earth permanent magnet steel drive motor for electric automobiles |
| CN105978252A (en) * | 2016-05-11 | 2016-09-28 | 山东理工大学 | Production method for driving motor rotor internally provided with radial magnetic-field rare-earth permanent magnet steel |
| CN107482809A (en) * | 2017-09-19 | 2017-12-15 | 安徽沃弗电力科技有限公司 | A kind of PM rotor of magnetic coupling |
| CN109217512A (en) * | 2018-10-12 | 2019-01-15 | 南京越博电驱动系统有限公司 | Permanent magnet synchronous motor lightweight rotor assembly |
-
2014
- 2014-05-26 CN CN201420270084.6U patent/CN203883573U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186818A (en) * | 2015-09-14 | 2015-12-23 | 常州市普世汽车电动系统有限公司 | Permanent magnet synchronous motor with hybrid magnetic circuit arrangement |
| CN105958767A (en) * | 2016-05-11 | 2016-09-21 | 山东理工大学 | Built-in radial rare earth permanent magnet steel drive motor for electric automobiles |
| CN105978252A (en) * | 2016-05-11 | 2016-09-28 | 山东理工大学 | Production method for driving motor rotor internally provided with radial magnetic-field rare-earth permanent magnet steel |
| CN107482809A (en) * | 2017-09-19 | 2017-12-15 | 安徽沃弗电力科技有限公司 | A kind of PM rotor of magnetic coupling |
| CN109217512A (en) * | 2018-10-12 | 2019-01-15 | 南京越博电驱动系统有限公司 | Permanent magnet synchronous motor lightweight rotor assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230330 Address after: 201100 No. 322, Lane 953, Jianchuan Road, Minhang District, Shanghai Patentee after: SHANGHAI EDRIVE Co.,Ltd. Address before: Room 101, Building 2, No. 5 Yongfeng Road, Haidian District, Beijing 100089 Patentee before: BROAD-OCEAN MOTOR EV Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |
|
| CX01 | Expiry of patent term |