CN206575246U - A kind of rotor of permagnetic synchronous motor - Google Patents
A kind of rotor of permagnetic synchronous motor Download PDFInfo
- Publication number
- CN206575246U CN206575246U CN201720132380.3U CN201720132380U CN206575246U CN 206575246 U CN206575246 U CN 206575246U CN 201720132380 U CN201720132380 U CN 201720132380U CN 206575246 U CN206575246 U CN 206575246U
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- rotor
- magnetic pole
- synchronous motor
- permagnetic synchronous
- chamber group
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Abstract
The utility model discloses a kind of rotor of permagnetic synchronous motor; including rotor body; if rotor body annular array has individual magnetic pole chamber group; the magnetic pole chamber group includes two point chambers being symmetrical set; that is, the structure of described two points of chambers is in mirror image along its symmetry axis; next door is provided between described two points of chambers; magnetic pole chamber group is provided with opening in the left end of point chamber in left side on rotor body; protective case is cased with outside rotor body; the protective case covers the opening, and each point intracavitary is equipped with permanent magnet.Due to there is the setting of opening, so magnetic bridge would not be formed, and there is the protection of protective case, next door is just very thin at last, is also not in the situation of fracture.The utility model is used for permagnetic synchronous motor.
Description
Technical field
The utility model belongs to machine field, more particularly to magneto field, and in particular to a kind of permagnetic synchronous motor
Rotor.
Background technology
Permanent magnet direct-drive generator has efficiency high, highly reliable, maintenance small, small to power network impact and control is simple etc.
Outstanding advantages, thus critical role is occupied in wind-power market, belong to the wind power technology of a new generation, represent the development in future
Trend.In recent years, permanent magnet direct-drive blower fan is developed rapidly, and single-machine capacity is constantly lifted, and the large-scale permanent magnet direct-drive of 5MW and the above generates electricity
Machine is the international forward position level of current Wind turbines development.But because rated speed is low so that volume, the weight of motor are huge,
New problem is brought to the design of generator, manufacturing process and transport installation etc..Therefore the torque density of motor is improved to reduce
The weight and volume of motor, the difficulty of processing for reducing large fan is always study hotspot.
Utility model content
The technical problems to be solved in the utility model is：In view of the shortcomings of the prior art, the utility model proposes one kind
The rotor of permagnetic synchronous motor, by removing rotor magnetic bridge, solves the problem of current rotor leakage is big.
The solution that the utility model solves its technical problem is：
A kind of rotor of permagnetic synchronous motor, including rotor body, if rotor body annular array has individual magnetic pole chamber group,
The magnetic pole chamber group includes two point chambers being symmetrical set, that is, the structure of described two points of chambers along its symmetry axis is in mirror
Next door is provided between picture, described two points of chambers, magnetic pole chamber group is provided with opening in the left end of point chamber in left side on rotor body, turned
Protective case is cased with outside sub- body, the protective case covers the opening, each point intracavitary is equipped with permanent magnet.
As the further improvement of such scheme, rotor body is stacked by multiple stampings and formed.
It is arranged in parallel in two permanent magnets of same magnetic pole chamber group as the further improvement of such scheme.
As the further improvement of such scheme, same magnetic pole chamber group two permanent magnets adjacent two ends to turning
The pivot of son is approached so that described two permanent magnets are V-shaped to be laid.
As the further improvement of such scheme, the A/F of the opening is B, the thickness of protective case for 0.1B ~
0.3B。
As the further improvement of such scheme, the protective case is stainless steel or the coiling of non-metallic fibers wire rod
Into.
As the further improvement of such scheme, the magnetic induction line direction of the permanent magnet in same magnetic pole chamber group is outside
Or inwardly, the magnetic induction line direction of the permanent magnet of adjacent two magnetic pole groups is different.
The beneficial effects of the utility model are：In a kind of rotor of permagnetic synchronous motor, including rotor body, rotor body
If circular array shows individual magnetic pole chamber group, the magnetic pole chamber group includes two point chambers being symmetrical set, that is, described two points
The structure of chamber is in that next door is provided between mirror image, described two points of chambers along its symmetry axis, left end of the magnetic pole chamber group in point chamber in left side
It is provided with rotor body outside opening, rotor body and is cased with protective case, the protective case covers the opening, each divides intracavitary
It is equipped with permanent magnet.Due to there is the setting of opening, so magnetic bridge would not be formed, and there is a protection of protective case, next door is just at last
It is very thin, be also not in the situation of fracture.The utility model is used for permagnetic synchronous motor.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment
The accompanying drawing to be used is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present utility model, rather than entirely
Portion's embodiment, those skilled in the art on the premise of not paying creative work, can also obtain it according to these accompanying drawings
His design and accompanying drawing.
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 assumes that magnetic induction line distribution map when not setting the opening；
Fig. 3 is the magnetic induction line distribution map of the utility model embodiment.
Embodiment
The technique effect of design of the present utility model, concrete structure and generation is carried out below with reference to embodiment and accompanying drawing
Clearly and completely describe, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of embodiment of the present utility model, rather than whole embodiments, based on embodiment of the present utility model, the skill of this area
The other embodiment that art personnel are obtained on the premise of not paying creative work, belongs to the model of the utility model protection
Enclose.In addition, all connection/annexations being previously mentioned in text, not singly refer to component and directly connect, and refer to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to constitute more excellent draw bail.Each technology in the utility model creation
Feature, can be with combination of interactions on the premise of not conflicting conflict.
Referring to figs. 1 to Fig. 3, this is embodiment of the present utility model, specifically：
A kind of rotor of permagnetic synchronous motor, including rotor body, if rotor body annular array has individual magnetic pole chamber group,
The magnetic pole chamber group includes two point chambers 11 being symmetrical set, that is, the structure of described two points of chambers 11 is in along its symmetry axis
Next door 111 is provided between mirror image, described two points of chambers 11, magnetic pole chamber group is set in the left end of point chamber 11 in left side on rotor body
Have and protective case 12 is cased with outside opening, rotor body, the protective case 12 covers the opening, be each equipped with forever in point chamber 11
Magnet.Due to there is the setting of opening, so magnetic bridge would not be formed, and there is the protection of protective case, next door is just very thin at last, also not
The situation of fracture occurs.
As can be seen from Figure 2, if being not provided with opening, the position of adjacent magnetic pole chamber group is made up due to it of metal material, therefore its
Easy magnetic conduction, causes many magnetic induction lines all to enter in rotor body, so the magnetic induction line of this part cannot be cut, and be caused
Waste.And as can be seen from Figure 3, the magnetic induction line of the position of adjacent magnetic pole chamber group is very uniform, and the magnetic induction line that this dissipates outward is just
Dissipate outward, the magnetic induction line of this part diverging can just participate in acting, lift the efficiency of rotor.
Existing rotor body have plenty of by multiple stampings stack forms, but the utility model for the ease of manufacture with
And the size of opening is controlled, rotor body is stacked by multiple stampings and formed.
The present embodiment is approached at the adjacent two ends of two permanent magnets of same magnetic pole chamber group to the pivot of rotor,
Laid so that described two permanent magnets are V-shaped.The overall torque of such rotor is all very big.What V-arrangement was laid uses permanent magnet
There is a benefit, just overall inertia is smaller so that the stress of next door 111 and protective case is relatively small.And same magnetic
Two permanent magnets of pole chamber group are two-by-two to repulsion, and the adjacent permanent magnet of adjacent magnetic pole chamber group can reduce guarantor two-by-two to attraction
Sheath and the load in next door.
It is of course also possible to two permanent magnets in same magnetic pole chamber group are arranged in parallel, the moment of torsion of such rotor
It is comparatively steady.
The A/F of the opening of the present embodiment is B, and the thickness of protective case is 0.1B ~ 0.3B.For normal, opening
Width is smaller, and the power that next door and protective case are subject to is bigger, but A/F is smaller, then proves the V-arrangement folder of two points of chambers 11
Angle is bigger, then two mutual angles of permanent magnet are bigger, then the external magnetic force of permanent magnet is comparatively than more uniform, institute
With if necessary to the more uniform stator of magnetic force, it is only necessary to which just, vice versa for relatively thin protective case, so working as to obtain
The more uniform stator of magnetic force, can allow protective case thickness be 0.1B ~ 0.3B.Thicker not magnetic conductor can allow magnetic force to become
It is more uniform, but protective case is thicker, then magnetic force can be caused to decline, so it is new according to this practicality that protective case, which is 0.1B ~ 0.3B,
Type structure is made, the feature of specific special technique implication.
For the ease of processing and manufacturing, the protective case 12 is that stainless steel or non-metallic fibers wire rod coiling are formed.
The magnetic induction line direction of permanent magnet of the present embodiment in same magnetic pole chamber group inwardly or outwardly, adjacent two
The magnetic induction line direction of the permanent magnet of individual magnetic pole group is different.This feature that can be just laid well using permanent magnet V-arrangement, increases rotor
Moment of torsion.
Better embodiment of the present utility model is illustrated above, but the utility model is created and is not limited to
The embodiment, those skilled in the art can also make a variety of etc. on the premise of without prejudice to the utility model spirit
With modification or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (7)
1. a kind of rotor of permagnetic synchronous motor, including rotor body, it is characterised in that：If rotor body annular array has individual
Magnetic pole chamber group, the magnetic pole chamber group includes two point chambers being symmetrical set（11）, that is, described two points of chambers（11）Knot
Structure is in mirror image, described two points of chambers along its symmetry axis（11）Between be provided with next door（111）, point chamber of the magnetic pole chamber group in left side（11）
Left end opening is provided with rotor body, be cased with protective case outside rotor body（12）, the protective case（12）Cover described
Opening, each divides chamber（11）Inside it is equipped with permanent magnet.
2. a kind of rotor of permagnetic synchronous motor according to claim 1, it is characterised in that：Rotor body is by multiple punching presses
Piece is stacked and formed.
3. a kind of rotor of permagnetic synchronous motor according to claim 1, it is characterised in that：In same magnetic pole chamber group
Two permanent magnets are arranged in parallel.
4. a kind of rotor of permagnetic synchronous motor according to claim 1, it is characterised in that：In same magnetic pole chamber group
The adjacent two ends of two permanent magnets are approached to the pivot of rotor so that described two permanent magnets are V-shaped to be laid.
5. a kind of rotor of permagnetic synchronous motor according to claim 1, it is characterised in that：The A/F of the opening
For B, protective case（12）Thickness be 0.1B ~ 0.3B.
6. a kind of rotor of permagnetic synchronous motor according to claim 1, it is characterised in that：The protective case（12）For not
Rust steel matter or non-metallic fibers wire rod coiling are formed.
7. a kind of rotor of permagnetic synchronous motor according to claim 1, it is characterised in that：In same magnetic pole chamber group
Permanent magnet magnetic induction line direction inwardly or outwardly, the magnetic induction line direction of the permanent magnet of adjacent two magnetic pole groups is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720132380.3U CN206575246U (en) | 2017-02-14 | 2017-02-14 | A kind of rotor of permagnetic synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720132380.3U CN206575246U (en) | 2017-02-14 | 2017-02-14 | A kind of rotor of permagnetic synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206575246U true CN206575246U (en) | 2017-10-20 |
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ID=60058813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720132380.3U Active CN206575246U (en) | 2017-02-14 | 2017-02-14 | A kind of rotor of permagnetic synchronous motor |
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| Country | Link |
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| CN (1) | CN206575246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749678A (en) * | 2017-11-27 | 2018-03-02 | 北京交通大学 | A kind of permanent magnet machine rotor sheath cooling structure device |
-
2017
- 2017-02-14 CN CN201720132380.3U patent/CN206575246U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749678A (en) * | 2017-11-27 | 2018-03-02 | 北京交通大学 | A kind of permanent magnet machine rotor sheath cooling structure device |
| CN107749678B (en) * | 2017-11-27 | 2019-12-03 | 北京交通大学 | A kind of permanent magnet machine rotor sheath cooling structure device |
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