CN207766048U - The rotor and magneto of magneto - Google Patents
The rotor and magneto of magneto Download PDFInfo
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- CN207766048U CN207766048U CN201721767872.6U CN201721767872U CN207766048U CN 207766048 U CN207766048 U CN 207766048U CN 201721767872 U CN201721767872 U CN 201721767872U CN 207766048 U CN207766048 U CN 207766048U
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Abstract
The utility model provides a kind of rotor and magneto of magneto, has centered on the axis of rotor on the rotor of magneto, and along the circumferentially evenly arranged magnetic pole slot of rotor, magnetic pole slot includes magnetic slot；Magnetic slot has first end face and second end face, periphery wall the first magnetic bridge of formation of first end face and rotor, periphery wall the second magnetic bridge of formation of second end face and rotor close to one end of rotor outer periphery wall；On the section perpendicular to rotor axial, first end face and second end face are connected with each other and are formed the angle being open towards rotor axis direction, so that the first magnetic bridge and the second magnetic bridge is connected with each other, and form angle bridge.The utility model has reasonable design, simple in structure, the advantages of intensity of rotor can be improved under the premise of reducing leakage magnetic flux.
Description
Technical field
The utility model is related to technical field of motors, more particularly to the rotor machine magneto of a kind of magneto.
Background technology
With being constantly progressive for science and technology, the application of magneto is also more and more extensive.
Existing permanent magnet machine rotor is both provided with the magnetic slot that can accommodate permanent magnet, shape between the magnetic slot and the outer wall of rotor
At magnetic bridge.Usual magnetic bridge length is slightly larger than magnet thickness, will produce in rotor high speed rotation directly act on entirely every
The centrifugal force of magnetic bridge section keeps magnetic bridge position stress deformation very big, haves the shortcomings that rotor structure intensity is low.
Utility model content
The main purpose of the utility model is to provide a kind of rotor machine magneto of magneto, not only design is closed
Reason, it is simple in structure, and the structural strength of rotor can be made to be improved.
The utility model provides a kind of rotor of magneto, in having on the rotor and being with the axis of the rotor
The heart, and along the circumferentially evenly arranged magnetic pole slot of the rotor, the magnetic pole slot includes magnetic slot；
The magnetic slot close to one end of the rotor outer periphery wall have first end face and second end face, the first end face with
The periphery wall of the rotor forms the first magnetic bridge, and the second end face and the periphery wall of the rotor form the second magnetic bridge；
On the section of the rotor axial, the first end face and the second end face are connected with each other and are formed
The angle being open towards rotor axis direction makes first magnetic bridge and second magnetic bridge be connected with each other, and forms angle.
More preferably, the position on the periphery wall of the rotor, between corresponding two adjacent magnetic pole slots is provided with
The groove extended along the axial direction of the rotor, enables shape between the inner wall of the groove and the first end face of the magnetic slot
At first magnetic bridge.
More preferably, along the rotor, radially, the minimum widith of first magnetic bridge is less than second magnetic bridge
Minimum widith.
More preferably, the quantity of magnetic slot described in the same magnetic pole slot is two, and two magnetic slots are symmetrical arranged, and shape
At the angle gradually opened towards rotor outer periphery wall direction；
Two magnetic slots in the magnetic pole slot are respectively the first magnetic slot and the second magnetic slot；
On the section of the rotor axial, the second magnetic slot in the first magnetic slot and adjacent pole slot
Between form angle α, and α≤20 °.
More preferably, the magnetic pole slot includes connectivity slot, and the both ends of the connectivity slot are connect with two magnetic slots respectively, is used
Two magnetic slots to be connected to；
On the section of the rotor axial, the connectivity slot is with described close to the inner wall of the rotor axis
The axis of rotor is the circular arc in the center of circle.
More preferably, the magnetic pole slot includes the lattice being arranged between two magnetic slots, to by two magnetic
Slot separates.
More preferably, it is provided with the first permanent magnet that shape matches be magnetic slot in the magnetic slot tool.
More preferably, on the section of the rotor axial, the shape of first permanent magnet is rectangle.
More preferably, for first permanent magnet along being W from the length of the rotor radial, the width along the rotor is H,
In, 0.2≤H/W≤0.35.
More preferably, on the section of the rotor axial, the shape of first permanent magnet is to turn towards described
Sub- periphery wall is gradually opened or is reduced and is trapezoidal.
More preferably, it when the magnetic pole slot includes connectivity slot, is provided in the connectivity slot and is connected to groove shape with described
The second permanent magnet to match.
The another aspect of the utility model provides a kind of magneto, includes turn of the magneto of any of the above technical characteristic
Son.
The rotor of the magneto of the offer of the utility model, using on the section of the rotor axial, institute
It states first end face and the second end face is connected with each other and is formed the angle being open towards rotor axis direction, make first magnetic
Bridge and second magnetic bridge are connected with each other, and form the technical solution of angle, and not only reasonable design, simple in structure, and can
The structural strength of rotor is set to be improved.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model
Point, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the utility model
Improper restriction.In the accompanying drawings：
Fig. 1 is an embodiment (permanent magnet is not arranged) schematic diagram of the permanent magnet machine rotor of the utility model；
Fig. 2 is the first setting permanent magnet status diagram of Fig. 1；
Fig. 3 is second of setting permanent magnet status diagram of Fig. 1；
Fig. 4 is second of schematic shapes of the magnetic slot in Fig. 2；
Fig. 5 is the third schematic shapes of the magnetic slot in Fig. 2；
In figure：1, magnetic pole slot；11, magnetic slot；111, the first inner wall；112, the second inner wall；12, first end face；13, second end
Face；14, the first magnetic bridge；15, the second magnetic bridge；16, the first magnetic slot；17, the second magnetic slot；18, connectivity slot；2, groove；3, first forever
Magnet；4, the second permanent magnet.
Specific implementation mode
It is specific below in conjunction with the utility model to keep the purpose of this utility model, technical solution and advantage clearer
Technical solutions of the utility model are clearly and completely described in embodiment and corresponding attached drawing.Obviously, described embodiment
Only it is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field
The every other embodiment that those of ordinary skill is obtained without making creative work, belongs to the utility model
The range of protection.
It should be noted that term " first " in the specification and claims of the utility model and above-mentioned attached drawing,
" second " etc. is for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that in this way
The data used can be interchanged in the appropriate case, so that the embodiments of the present invention described herein can be in addition at this
In illustrate or description those of other than sequence implement.
As shown in Figure 1, 2, a kind of rotor of magneto has centered on the axis of rotor on rotor, and along rotor
Circumferential evenly arranged magnetic pole slot 1, magnetic pole slot 1 include magnetic slot 11.Magnetic slot 11 has first end close to one end of rotor outer periphery wall
The periphery wall of face 12 and second end face 13, first end face 12 and rotor forms the first magnetic bridge 14, and second end face 13 is outer with rotor
Peripheral wall forms the second magnetic bridge 15；On the section perpendicular to rotor axial, first end face 12 and second end face 13 are connected with each other simultaneously
The angle being open towards rotor axis direction is formed, so that the first magnetic bridge 14 and the second magnetic bridge 15 is connected with each other, and form angle.It adopts
With such technical solution, when the rotor rotates, the centrifugal force that magnetic slot 11 is born close to one end of rotor sidewall can be distinguished
Component is formed in first end face 12 and second end face 13, the first magnetic bridge 14 and the second magnetic bridge 15 is made to be solely subjected to point of the centrifugal force
Power, therefore the deformation of the first magnetic bridge 14 and the second magnetic bridge 15 can be reduced, and then the structural strength of rotor is made to be improved.Such as figure
It, can be remote by the one end of first end face 12 far from second end face 13 and second end face 13 when permanent magnet is arranged in magnetic slot 11 shown in 2
It is limited jointly to the permanent magnet in magnetic slot 11 is arranged from 12 side of first end face, while in first end face 12 and second end face
Air gap is formed between 13.
Further, as shown in Figure 1, 2, the position setting on rotor outer periphery wall, between corresponding two adjacent pole slots 1
The groove 2 for having the axial direction extension along rotor enables to be formed the between the inner wall of groove 2 and the first end face 12 of magnetic slot 11
One magnetic bridge 14, so that width of first magnetic bridge 14 on rotor radial narrows.In actual fabrication, along rotor radially,
The minimum widith of first magnetic bridge 14 is less than the minimum widith of the second magnetic bridge 15.The width that the first magnetic bridge 14 can be reduced in this way, from
And reduce the magnetic leakage flux between two adjacent magnetic slots 11 in two neighboring magnetic pole slot 1.It can ensure rotor strength
Under the premise of reduce adjacent pole between magnetic leakage flux, and then improve electric efficiency.
In actual use, can be as shown in Figure 2, the first permanent magnetism that shape matches with magnetic slot 11 is provided in magnetic slot 11
Body, and on the section perpendicular to rotor axial, the shape of the first permanent magnet 3 is rectangle.It is specific when making, as same in figure
The quantity of magnetic slot 11 is two in magnetic pole slot 1, two magnetic slots 11 are symmetrical arranged, and is formed and gradually opened towards rotor outer periphery wall direction
Angle.And it is respectively the first magnetic slot 16 and the second magnetic slot 17 by two magnetic slots 11 in magnetic pole slot 1, perpendicular to armature spindle
To section on, form angle α, and α≤20 ° between the second magnetic slot 17 in the first magnetic slot 16 and adjacent pole slot 1.Using
Such proportionate relationship for being designed with the length and width conducive to the first permanent magnet 3 of optimization.When specific design, perpendicular to rotor
Axial section, the first permanent magnet 3 is W along the length extended from internal rotor towards rotor sidewall direction, from the first inner wall 111
The width extended to 112 direction of the second inner wall is H, wherein 0.2≤H/W≤0.35.
The cross sectional shape of first permanent magnet 3 is not limited in being rectangle.Second of shape as shown in Figure 4 can also be used
Shape or as shown in Figure 5 the third shape, i.e., on the section perpendicular to rotor axial, the shape of the first permanent magnet 3 is court
It gradually opens or reduces to rotor outer periphery wall and is trapezoidal.
Based on the considerations of rotor structure intensity and leakage field between rotor and shaft is avoided, can be as shown in fig. 1, magnetic pole slot 1
Including connectivity slot 18, the both ends of connectivity slot 18 are connect with two magnetic slots 11 respectively, to be connected to two magnetic slots 11.Perpendicular to
On the section of rotor axial, inner wall of the connectivity slot 18 close to rotor axis direction is using the axis of rotor as the circular arc in the center of circle.This
Sample can make the first permanent magnet 3 along from internal rotor court in the case where connectivity slot 18 and rotor inner circle have the limitation of minimum safe distance
The length extended to rotor sidewall direction designs maximization for W, increases magnetic flux area, and then promote motor performance.Permanent magnetism at this time
The second way as shown in Figure 3 can be used in the setting of body, i.e., is provided in connectivity slot 18 and matches with 18 shape of connectivity slot
The second permanent magnet 4.Such first permanent magnet 3 can be in parallel magnetization, and the second permanent magnet 4 being capable of radial magnetizing.In practical system
In work, the material of the first permanent magnet 3 and the second permanent magnet 4 can be ferrite or Agglutinate neodymium-iron-boron.It should be noted that same
In one magnetic pole slot 1, the first permanent magnet 3 is identical with the polarity of the second permanent magnet 4.
As another embodiment, magnetic pole slot 1 is (not shown including the lattice being arranged between two magnetic slots 11
Go out), two magnetic slots 11 to be separated.Since lattice is connect with rotor core, it can both ensure that motor leaked in this way
Magnetic reduces, while can increase rotor strength again, improves motor reliability.
A kind of magneto is provided for the realization another aspect of goal of the invention the utility model, including described by above example
Magneto rotor.
Above example makes the utility model have reasonable design, simple in structure, can be under the premise of reducing leakage magnetic flux
The advantages of improving the intensity of rotor.
The above description is only the embodiments of the present invention, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the right of the utility model.
Claims (12)
1. a kind of rotor of magneto, it is characterised in that：
Have centered on the axis of the rotor on the rotor, and along the circumferentially evenly arranged magnetic pole slot (1) of the rotor,
The magnetic pole slot (1) includes magnetic slot (11)；
The magnetic slot (11) has first end face (12) and a second end face (13) close to one end of the rotor outer periphery wall, and described the
End face (12) and the periphery wall of the rotor form the first magnetic bridge (14), the periphery of second end face (13) and the rotor
Wall forms the second magnetic bridge (15)；
On the section of the rotor axial, the first end face (12) and the second end face (13) are connected with each other simultaneously
The angle being open towards rotor axis direction is formed, first magnetic bridge (14) and second magnetic bridge (15) is made to be connected with each other,
And form angle.
2. rotor according to claim 1, it is characterised in that：
Position on the periphery wall of the rotor, between corresponding two adjacent magnetic pole slots (1) is provided with along described turn
The groove (2) that the axial direction of son extends, enables the first end face (12) of the inner wall and the magnetic slot (11) of the groove (2)
Between form first magnetic bridge (14).
3. rotor according to claim 2, it is characterised in that：
Along the rotor, radially, the minimum widith of first magnetic bridge (14) is less than the minimum of second magnetic bridge (15)
Width.
4. rotor according to claim 1, it is characterised in that：
The quantity of magnetic slot (11) described in the same magnetic pole slot (1) is two, and two magnetic slots (11) are symmetrical arranged, and shape
At the angle gradually opened towards rotor outer periphery wall direction；
Two magnetic slots (11) in the magnetic pole slot (1) are respectively the first magnetic slot (16) and the second magnetic slot (17)；
On the section of the rotor axial, described second in the first magnetic slot (16) and adjacent pole slot (1)
Magnetic slot forms angle α, and α≤20 ° between (17).
5. rotor according to claim 4, it is characterised in that：
The magnetic pole slot (1) further includes connectivity slot (18), the both ends of the connectivity slot (18) respectively with two magnetic slots (11)
Connection, to be connected to two magnetic slots (11)；
On the section of the rotor axial, the connectivity slot (18) is with described close to the inner wall of the rotor axis
The axis of rotor is the circular arc in the center of circle.
6. rotor according to claim 4, it is characterised in that：
The magnetic pole slot (1) includes that lattice between two magnetic slots (11) is arranged, to by two magnetic slots
(11) it separates.
7. according to the rotor described in claim 1 to 6 any one, it is characterised in that：
The first permanent magnet (3) that shape matches with the magnetic slot (11) is provided in the magnetic slot (11).
8. rotor according to claim 7, it is characterised in that：
On the section of the rotor axial, the shape of first permanent magnet (3) is rectangle.
9. rotor according to claim 8, it is characterised in that：
First permanent magnet (3) is W along the length of the rotor radial, and the width along rotor circumferential direction is H, wherein 0.2
≤H/W≤0.35。
10. rotor according to claim 7, it is characterised in that：
On the section of the rotor axial, the shape of first permanent magnet (3) is towards the rotor outer periphery wall
That gradually opens or reduce is trapezoidal.
11. rotor according to claim 7, it is characterised in that：
When the magnetic pole slot (1) includes connectivity slot (18), it is provided with and the connectivity slot (18) in the connectivity slot (18)
The second permanent magnet (4) that shape matches.
12. a kind of magneto, it is characterised in that：
Include the rotor of the magneto described in claim 1 to 11 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721767872.6U CN207766048U (en) | 2017-12-14 | 2017-12-14 | The rotor and magneto of magneto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721767872.6U CN207766048U (en) | 2017-12-14 | 2017-12-14 | The rotor and magneto of magneto |
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| Publication Number | Publication Date |
|---|---|
| CN207766048U true CN207766048U (en) | 2018-08-24 |
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ID=63186771
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721767872.6U Active CN207766048U (en) | 2017-12-14 | 2017-12-14 | The rotor and magneto of magneto |
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| Country | Link |
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| CN (1) | CN207766048U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023420A (en) * | 2017-12-14 | 2018-05-11 | 珠海格力节能环保制冷技术研究中心有限公司 | The rotor and magneto of magneto |
| CN113839490A (en) * | 2020-06-24 | 2021-12-24 | 莱克电气股份有限公司 | Rotor, efficient low-noise motor and application thereof |
| CN114039435A (en) * | 2021-11-04 | 2022-02-11 | 广东美芝精密制造有限公司 | Rotor structure, motor structure, compressor structure and refrigeration plant |
-
2017
- 2017-12-14 CN CN201721767872.6U patent/CN207766048U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023420A (en) * | 2017-12-14 | 2018-05-11 | 珠海格力节能环保制冷技术研究中心有限公司 | The rotor and magneto of magneto |
| CN113839490A (en) * | 2020-06-24 | 2021-12-24 | 莱克电气股份有限公司 | Rotor, efficient low-noise motor and application thereof |
| CN113839490B (en) * | 2020-06-24 | 2023-05-30 | 莱克电气股份有限公司 | High-efficiency low-noise motor and application thereof |
| CN114039435A (en) * | 2021-11-04 | 2022-02-11 | 广东美芝精密制造有限公司 | Rotor structure, motor structure, compressor structure and refrigeration plant |
| CN114039435B (en) * | 2021-11-04 | 2023-10-03 | 广东美芝精密制造有限公司 | Rotor structure, motor structure, compressor structure and refrigeration equipment |
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