CN208094314U - A kind of rotor structure of driving motor - Google Patents
A kind of rotor structure of driving motor Download PDFInfo
- Publication number
- CN208094314U CN208094314U CN201820668076.5U CN201820668076U CN208094314U CN 208094314 U CN208094314 U CN 208094314U CN 201820668076 U CN201820668076 U CN 201820668076U CN 208094314 U CN208094314 U CN 208094314U
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- China
- Prior art keywords
- rotor
- reinforcing rib
- groove
- driving motor
- axis
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 30
- 238000004080 punching Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 238000005728 strengthening Methods 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a kind of rotor structure of driving motor, including rotor punching, annular array in several V-grooves on rotor punching, each V-groove centre position is equipped with d-axis reinforcing rib, both sides are respectively inlayed there are one rectangle magnet steel in each V-groove, open up that there are one unloading port below the d-axis reinforcing rib.The utility model designs improve rotor structure intensity through the above structure, and it can effectively obstruct armature d-axis magnetic circuit, reduce d-axis inductance, improve convex grey subset, promote reluctance torque, and the leakage field at this is reduced, promote magnet utilization rate so that be significantly improved using the efficiency and performance of the motor of the rotor.
Description
Technical field
The utility model is related to Design of PM Motor field, more particularly to a kind of rotor structure of driving motor.
Background technology
Interior permanent magnet machines are because of the advantages that its torque density is big, and weak magnetic range is wide and operational efficiency is high, extensive use
In New-energy electric vehicle.
In the prior art, the rotor of interior permanent magnet machines is typically all to be turned to ensure by magnetic bridge and quadrature axis reinforcing rib
Two blocks of magnet steel are inserted into V-groove both sides and fixed by the sub not deformation and failure by its centrifugal force；Some motors in order to further enhance
Rotor structure intensity, it will usually which the V-groove centre position of rotor punching in Fig. 1 increases a d-axis reinforcing rib, plays and carries
The effect for rising rotor rigidity and intensity, to ensure that the structural strength of rotor meets requirement when rotating at high speed.But increase
D-axis reinforcing rib can cause leakage field to increase, and d-axis reactance becomes larger, and influences motor performance.Lacking one kind in the prior art can expire
Rigidity and intensity requirement when sufficient high speed rotation are avoided that the increased technical solution of leakage field again.
Accordingly, it is desirable to provide a kind of new rotor structure solves problems of the prior art.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of rotor structure of driving motor, concrete scheme
It is as follows：
Including rotor punching, annular array in several V-grooves on rotor punching, each V-groove centre position
Equipped with d-axis reinforcing rib, both sides are respectively inlayed there are one rectangle magnet steel in each V-groove, and the d-axis reinforcing rib lower section offers one
A unloading port.
Preferably, the d-axis reinforcing rib width is the 20%-50% of quadrature axis reinforcing rib width, and the unloading hole width is straight
1.5-8 times of axis reinforcing rib width.
Preferably, the d-axis reinforcing rib width is the 35% of quadrature axis reinforcing rib width, and the unloading hole width adds for d-axis
3 times of strengthening tendons width.
Preferably, the rotor punching outer ring is equipped with magnetic bridge at each V-groove both ends.
Preferably, quadrature axis reinforcing rib there are one being respectively formed between the two neighboring V-groove.
Preferably, the V-groove number is six.
Preferably, the first lightening hole is further opened between each two adjacent V-groove on the rotor punching.
Preferably, the second lightening hole is offered above the d-axis reinforcing rib.
Using the technical solution of the utility model, have the advantages that：
While retaining d-axis reinforcing rib, unloading port is opened up below the d-axis reinforcing rib, d-axis is effectively reduced and adds
Stress concentration at strengthening tendons so that rotor maximum stress value reduces, and improves rotor structure intensity, and increase at this
Unloading port can effectively obstruct armature d-axis magnetic circuit, reduce d-axis inductance, improve convex grey subset, promote reluctance torque, and reducing should
The leakage field at place promotes magnet utilization rate so that be significantly improved using the efficiency and performance of the motor of the rotor.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
Referring to Fig.1, the utility model embodiment provides a kind of rotor structure of driving motor, including rotor punching 1, annular
Array is equipped with d-axis reinforcing rib 3, each V-groove in six V-grooves 2 on rotor punching 1,2 centre position of each V-groove
Both sides are respectively inlayed there are one rectangle magnet steel 4 in 2, and 3 lower section of the d-axis reinforcing rib is opened up there are one unloading port 5, and the rotor rushes
1 outer ring of piece is equipped with magnetic bridge 6 at 2 both ends of each V-groove, forms that there are one quadrature axis between the two neighboring V-groove
Reinforcing rib 7.
It is further opened with the first lightening hole 8 between the two neighboring V-type groove group；3 top of the d-axis reinforcing rib opens up
There is the second lightening hole.
The d-axis reinforcing rib width is the 35% of quadrature axis reinforcing rib width, and the unloading hole width is d-axis reinforcing rib width
3 times.
The rotor structure working principle and beneficial effect of driving motor provided by the utility model is as follows：
While retaining d-axis reinforcing rib 3 compared with the prior art, unloading port 5 is opened up below the d-axis reinforcing rib 3,
Effectively reduce the stress concentration at d-axis reinforcing rib 3 so that rotor maximum stress value reduces, and it is strong to improve rotor structure
Degree, and increase unloading port 5 at this, armature d-axis magnetic circuit can be effectively obstructed, d-axis inductance is reduced, convex grey subset is improved, carries
Reluctance torque is risen, and reduces the leakage field at this, promotes magnet utilization rate so that obtain using the efficiency and performance of the motor of the rotor
It is improved to apparent.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
Under every utility model in the utility model is conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (6)
1. a kind of rotor structure of driving motor, it is characterised in that：If including rotor punching, annular array on rotor punching
A dry V-groove, each V-groove centre position are equipped with d-axis reinforcing rib, and both sides respectively inlay that there are one rectangles in each V-groove
Magnet steel, opens up that there are one unloading port below the d-axis reinforcing rib.
2. the rotor structure of driving motor according to claim 1, it is characterised in that：The rotor punching outer ring is in described
It is equipped with magnetic bridge at each V-groove both ends.
3. the rotor structure of driving motor according to claim 1, it is characterised in that：Between the two neighboring V-groove
Quadrature axis reinforcing rib there are one being respectively formed.
4. the rotor structure of driving motor according to claim 1, it is characterised in that：The V-groove number is six.
5. the rotor structure of driving motor according to claim 1, it is characterised in that：In two phases on the rotor punching
It is further opened with the first lightening hole between adjacent V-groove.
6. the rotor structure of driving motor according to claim 1, it is characterised in that：It is opened up above the d-axis reinforcing rib
There is the second lightening hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820668076.5U CN208094314U (en) | 2018-05-04 | 2018-05-04 | A kind of rotor structure of driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820668076.5U CN208094314U (en) | 2018-05-04 | 2018-05-04 | A kind of rotor structure of driving motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208094314U true CN208094314U (en) | 2018-11-13 |
Family
ID=64052755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820668076.5U Active CN208094314U (en) | 2018-05-04 | 2018-05-04 | A kind of rotor structure of driving motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208094314U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599416A (en) * | 2018-05-04 | 2018-09-28 | 深圳市泉胜新技术开发有限公司 | A kind of rotor structure of driving motor |
| CN109638999A (en) * | 2018-12-07 | 2019-04-16 | 中车永济电机有限公司 | A kind of low-loss, hollow shaft radiator structure p-m rotor |
| CN111293809A (en) * | 2018-12-10 | 2020-06-16 | 本田技研工业株式会社 | Rotor |
-
2018
- 2018-05-04 CN CN201820668076.5U patent/CN208094314U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599416A (en) * | 2018-05-04 | 2018-09-28 | 深圳市泉胜新技术开发有限公司 | A kind of rotor structure of driving motor |
| CN108599416B (en) * | 2018-05-04 | 2020-06-23 | 深圳市泉胜新技术开发有限公司 | Rotor structure of driving motor |
| CN109638999A (en) * | 2018-12-07 | 2019-04-16 | 中车永济电机有限公司 | A kind of low-loss, hollow shaft radiator structure p-m rotor |
| CN111293809A (en) * | 2018-12-10 | 2020-06-16 | 本田技研工业株式会社 | Rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240205 Address after: 518000 office area, 101 / F and 2 / F, fuchangsheng industrial plant (factory), No.2 Chengxin Road, Baolong community, Baolong street, Longgang District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN QUANSHENG PRECISION TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 518000 floor 2, fuchangsheng Industrial Park, No. 2, Chengxin Road, Longgang street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN QUANSHENG NEW TECHNOLOGY DEVELOPMENT CO.,LTD. Country or region before: China |
|
| TR01 | Transfer of patent right |