CN208190374U - A kind of permanent magnet machine rotor and motor - Google Patents
A kind of permanent magnet machine rotor and motor Download PDFInfo
- Publication number
- CN208190374U CN208190374U CN201820825819.5U CN201820825819U CN208190374U CN 208190374 U CN208190374 U CN 208190374U CN 201820825819 U CN201820825819 U CN 201820825819U CN 208190374 U CN208190374 U CN 208190374U
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- permanent magnet
- rotor core
- dynamic balancing
- armature spindle
- magnet machine
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Abstract
The utility model discloses a kind of permanent magnet machine rotor and motor, which includes: an armature spindle；One rotor core is sheathed on the armature spindle periphery, is formed with multiple dovetail grooves being axially arranged on the outer surface of the rotor core；Two magnetic poles, one magnetic north pole and a south magnetic pole, two magnetic poles in the rotor core outer surface be symmetrical arranged, each magnetic pole at least by two set of permanent magnets at, the cross section of the permanent magnet and the cross section of the dovetail groove match, and permanent magnet insertion is fixed in dovetail groove；One sleeve, is sheathed on rotor core periphery, and the gap filling between the sleeve and rotor core has epoxy resin.Permanent magnet machine rotor provided by the utility model can protect permanent magnet again and can guarantee good permanent magnet heat sinking function and electric efficiency.
Description
Technical field
The utility model relates to technical field of motors more particularly to a kind of permanent magnet machine rotors and motor.
Background technique
High speed permanent magnet motor rotor generallys use sintering ferro-aluminum boron permanent magnet, which can bear biggish pressure and answer
Power, but 100MPa tensile stress below can only be born, tensile strength is generally below 1/10th of compression strength, so forever
Magnet needs safeguard measure come the powerful centrifugal force for overcoming high-speed rotary permanent magnet to generate, and protects the side of permanent magnet at present
Method is to increase the non-magnetic protective case of intensity outside permanent magnet, and permanent magnet and protective case are used and be interference fitted, but carbon fiber maintenance
Sheath is the non-conductor of heat, is unfavorable for permanent magnet and radiates, and metal mesh protective case good heat dissipation effect, but metal mesh protective case
Eddy current loss can be generated, electric efficiency is reduced.
Therefore how can guarantee good permanent magnet heat sinking function again while protecting permanent magnet and electric efficiency is for I
Technical problem urgently to be solved.
Utility model content
The technical problem to be solved by the utility model is to propose that it is good that one kind can protect permanent magnet again and can guarantee
The permanent magnet machine rotor and motor of permanent magnet heat sinking function and electric efficiency.
In order to solve the above technical problems, the utility model uses following technical scheme:
On the one hand, the utility model provides a kind of permanent magnet machine rotor, which includes:
One armature spindle；
One rotor core is sheathed on the armature spindle periphery, is formed with a plurality of axial direction on the outer surface of the rotor core
The dovetail groove of setting；
Two magnetic poles, a magnetic north pole and a south magnetic pole, two magnetic poles are symmetrical arranged in the outer surface of the rotor core,
Each magnetic pole is at least by two set of permanent magnets at the cross section of the permanent magnet and the cross section of the dovetail groove match, institute
Permanent magnet insertion is stated to be fixed in dovetail groove；
One sleeve, is sheathed on rotor core periphery, and the gap filling between the sleeve and rotor core has epoxy resin.
Wherein, the permanent magnet is arc-shaped permanent magnet, and the curvature of the permanent magnet inner arc is equal to the rotor core outer circle
Curvature.
Wherein, the curvature of the permanent magnet outer arc is equal to permanent magnet inner arc curvature, permanent magnet inner arc and permanent magnet outer arc
Eccentricity is equal to permanent magnetism body thickness.
Wherein, the every permanent magnet is divided into several segments along rotor core axial direction.
Wherein, being provided between the rotor core and the armature spindle prevents rotor core from rotating relative to the armature spindle
Anti-rotation element；The anti-rotation element is included in the strip inner convex platform that rotor core inner periphery is axially arranged and in armature spindle
Periphery axially engages the strip groove for claiming setting, or is included in strip groove that rotor core inner periphery is axially arranged and in turning
Sub- axis periphery axially engages the strip outer lug boss of setting.
Wherein, the sleeve is carbon fiber sleeve or glass fibre sleeve.
Wherein, the permanent magnet machine rotor further includes a left dynamic balancing plate, a right dynamic balancing plate, round nut stop washer
With a round nut, the armature spindle right end is provided with the fixed station that outside diameter is greater than the right dynamic balancing plate internal diameter, the right side
Dynamic balancing plate is set between the rotor core right end and the fixed station；The round nut will across the armature spindle left end
The left dynamic balancing plate is fixed on the rotor core left end, and the round nut is set to the round nut and institute with stop washer
It states between left dynamic balancing plate.
Wherein, the outside diameter of the left dynamic balancing plate and right dynamic balancing plate is equal to the interior circular diameter of the sleeve.
Wherein, the material of the left dynamic balancing plate and right dynamic balancing plate is aluminium alloy or brass.
On the other hand, the utility model additionally provides a kind of motor, which includes above-mentioned permanent magnet machine rotor.
Compared with prior art, the utility model has the following beneficial effects: the utility model passes through in rotor core excircle
Dovetail groove is set, is blocked permanent magnet using dovetail groove, so that production when permanent magnetism physical efficiency overcomes permanent magnet machine rotor high speed rotation
Raw powerful centrifugal force, and poured and be filled between rotor core and sleeve using the higher epoxy resin of thermal coefficient, make permanent magnet
The heat of generation can be passed by epoxy resin in time, avoided heat and be gathered in inside permanent magnet and lead to permanent magnet
It can reduce and irreversible demagnetization even occurs.
Detailed description of the invention
It, below will be to the utility model embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to the content of the utility model embodiment and these attached drawings.
Fig. 1 is a kind of main view for permanent magnet machine rotor that specific embodiment of the present invention provides.
Fig. 2 is the cross-sectional view of Section A-A in Fig. 1.
Fig. 3 is the cross-sectional view in the section B-O-B in Fig. 2.
Fig. 4 is a kind of schematic perspective view for rotor core that specific embodiment of the present invention provides.
Fig. 5 is a kind of left view for rotor core that specific embodiment of the present invention provides.
Fig. 6 is a kind of structural representation for rotor core for being embedded with magnetic pole that specific embodiment of the present invention provides
Figure.
Fig. 7 is a kind of structural schematic diagram for permanent magnet that specific embodiment of the present invention provides.
Wherein: 1- round nut；2- round nut stop washer；The left dynamic balancing plate of 3-；4- sleeve；5- epoxy resin；6- turns
Sub- iron core；61- dovetail groove；62- dovetail groove；63- dovetail shaped boss；64- strip inner convex platform；7- armature spindle；71- fixed station；8-
Right dynamic balancing plate；91- magnetism is the permanent magnet in the South Pole；92- magnetism is the permanent magnet of the arctic；921~925- permanent magnet segment.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
It is described in further detail below in conjunction with technical solution of the attached drawing to the utility model embodiment, it is clear that described reality
Applying example is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention,
It is practical new to belong to this for those skilled in the art's every other embodiment obtained without creative efforts
The range of type protection.
In the description of the utility model embodiment, term " on ", "lower", "left", "right", "front", "rear", "inner",
The orientation or positional relationship of the instructions such as "outside", "top", "bottom", "horizontal", "vertical" is orientation based on the figure or position
Relationship is merely for convenience of description the utility model, rather than only or to imply that signified device or element must have specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
1~7 pair of permanent magnet machine rotor work provided by the embodiment of the utility model is further retouched in detail with reference to the accompanying drawing
It states.Fig. 1 is a kind of main view for permanent magnet machine rotor that specific embodiment of the present invention provides, and Fig. 2 is that A-A is cut in Fig. 1
The cross-sectional view in face, Fig. 3 are the cross-sectional views in the section B-O-B in Fig. 2, and Fig. 4 is one kind that specific embodiment of the present invention provides
The schematic perspective view of rotor core, Fig. 5 are a kind of left views for rotor core that specific embodiment of the present invention provides
Figure, Fig. 6 are a kind of structural schematic diagram for rotor core for being embedded with magnetic pole that specific embodiment of the present invention provides, Fig. 7
It is a kind of structural schematic diagram for permanent magnet that specific embodiment of the present invention provides.It is practical new below with reference to Fig. 1~7 pair sheet
The permanent magnet machine rotor that type embodiment provides is described in further detail.
As shown in Fig. 1~7, permanent magnet machine rotor provided by the embodiment of the utility model includes: armature spindle 7, a rotor iron
6, two magnetic poles of core and a sleeve 4；Rotor core 6 is sheathed on 7 periphery of the armature spindle, on the outer surface of the rotor core 6
It is formed with a plurality of dovetail groove 62 being axially arranged, as shown in figure 5, each dovetail groove 62 is by two as an embodiment
Adjacent dovetail shaped boss 63 wide outside and narrow inside forms.Two magnetic poles, respectively a magnetic north pole and a south magnetic pole, two magnetic poles in
The outer surface of the rotor core 6 is symmetrical arranged, and each magnetic pole is at least by two set of permanent magnets at the transversal of, the permanent magnet
Face and the cross section of the dovetail groove 62 match, and the permanent magnet insertion is fixed in dovetail groove 62, it should be noted that magnetic
The arctic is made of the permanent magnet 92 that two or two or more magnetism is the arctic (N), and south magnetic pole is by two or two or more magnetic
Property for the South Pole (S) permanent magnet 91 form.Permanent magnet insertion is fixed in the dovetail groove 62, and each permanent magnet is one corresponding
Dovetail groove 62 blocks permanent magnet using dovetail shaped boss 63, so that production when permanent magnetism physical efficiency overcomes permanent magnet machine rotor high speed rotation
Raw powerful centrifugal force.Sleeve 4 is sheathed on 6 periphery of rotor core, and the gap filling between the sleeve 4 and rotor core 6 has
Epoxy resin 5,5 one side of epoxy resin are conducive to go out the heat transfer of permanent magnet, on the other hand also function to auxiliary permanent
Body overcomes the effect of centrifugal force.Outer circle and the armature spindle 7 as a preferred embodiment, after the solidification of epoxy resin 5
Coaxial inner conductor, epoxy resin 5 fills largest circumference to be advisable with the outer circle for covering the circumference where permanent magnet.
Each magnetic pole by two or two or more set of permanent magnets at, be divided into how many depend on rotor core outer diameter it is big
Small, here without limitation to the radical of the permanent magnet of magnetic pole, 6 outer diameter of rotor core is bigger, and radical is more, and outer diameter is small to be divided
At two, outer diameter it is big be divided into more this be the processing of permanent magnet for convenience, reduce processing charges, while outside rotor core 6
The quantity of dovetail shaped boss 63 on circumference is consequently increased, so that permanent magnet insertion is formed by two neighboring dovetail shaped boss 63
Dovetail groove in, the centrifugal force that generates when permanent magnet being made to overcome permanent magnet machine rotor rotation reduces what permanent magnet was thrown out of
Risk.As shown in fig. 6, each magnetic pole is by four set of permanent magnets at that is, south magnetic pole is by four magnetic as a preferred embodiment
Property for the South Pole permanent magnet 91 form, magnetic north pole by four magnetism be the arctic permanent magnet 92 form.Further, for permanent magnetism
Body is more easily processed, reduces processing cost, and every permanent magnet is divided into several segments along rotor core axial direction, can basis
The length of permanent magnet determines for permanent magnet to be divided into how many sections, here with no restrictions to number of segment.As a preferred embodiment,
Processing, reduction economic loss in order to facilitate permanent magnet, every permanent magnet are divided into five sections along rotor core axial direction, such as
Shown in Fig. 3, magnetism is that the permanent magnet 92 of the arctic is divided into five sections of permanent magnet segments (921,922,923,924 and 925), corresponding every
Root magnetism is that the permanent magnet 91 in the South Pole is also divided into five sections of permanent magnets.
In some embodiments, being provided between rotor core 6 and the armature spindle 7 prevents rotor core 6 relatively described
The anti-rotation element that armature spindle 7 rotates, anti-rotation element are included in the strip inner convex platform 64 that 6 inner periphery of rotor core is axially arranged
With the strip groove being equipped in 7 periphery of armature spindle, it is preferred that as shown in Fig. 2,4,5 and 6, in 6 inner periphery pair of rotor core
Title is provided with two strip inner convex platforms 64, corresponding, is symmetrically arranged with two strip grooves in 7 periphery cooperation of armature spindle.As another
A embodiment, anti-rotation element are included in the strip groove that 64 inner periphery of rotor core is axially arranged and in 7 peripheries of armature spindle
Axially engage the strip outer lug boss of setting.
In some embodiments, the permanent magnet is arc-shaped permanent magnet, and the curvature of the permanent magnet inner arc is equal to described turn
Sub- 7 outer circle curvature of iron core.In some embodiments, as shown in fig. 7, the curvature of permanent magnet outer arc is equal to permanent magnet inner arc curvature,
The eccentricity L2 of permanent magnet inner arc and permanent magnet outer arc is equal to permanent magnetism body thickness L1.
In some embodiments, shown sleeve 4 is carbon fiber set or glass fibre sleeve.
As shown in Fig. 2, permanent magnet machine rotor further includes a left dynamic balancing plate 3, a right dynamic balancing plate 8, round nut stop
Washer 2 and a round nut 1,7 right end of armature spindle are provided with the fixed station that outside diameter is greater than the right dynamic balancing plate internal diameter
71, the right dynamic balancing plate 8 is set between 6 right end of rotor core and the fixed station；The round nut 1 passes through described
The left dynamic balancing plate 3 is fixed on 6 left end of rotor core by 7 left end of armature spindle, and the round nut is arranged with stop washer 2
Between the round nut 1 and the left dynamic balancing plate 3, rotor core 6 is locked using round nut 1.It is preferred real as one
Example is applied, left dynamic balancing plate 3 is equal to the interior circular diameter of sleeve 4 with the outside diameter of right dynamic balancing plate 8, that is, is equal to epoxy resin 5
Outside diameter after solidification.In some embodiments, the material of left dynamic balancing plate 3 and right dynamic balancing plate 8 is aluminium alloy or brass
Etc. non-magnetic metal.
When preparing permanent magnet machine rotor, first right dynamic balancing plate 8 is pressed on armature spindle 7, then rotor core 6 is pressed into
On armature spindle 7, rotor core 6 is made to compress right dynamic balancing plate 8, permanent magnet is embedded in dovetail groove 62, with right 8 outer circle of dynamic balancing plate
On the basis of, it is covered outside rotor core 6 with stainless steel sleeve, stainless steel inner circle release agent spraying, encapsulated epoxy resin 5, it will entirely partly
Finished product permanent magnet machine rotor is dried at 100 DEG C in vacuum environment, is pressed sleeve 4 in 5 periphery of epoxy resin, in semi-finished product permanent magnetism
The left end of rotor is pressed left dynamic balancing plate 3, installs round nut stop washer 2 and round nut 1, tightens round nut 1 and lock
Tight round nut stop washer 2 is to prevent tight round nut 1 from loosening；Dynamic balancing measurement and duplicate removal dynamic balancing are done, entire permanent magnetism is completed
The preparation of rotor.
The utility model embodiment additionally provides a kind of motor, which includes above-mentioned permanent magnet machine rotor.
Permanent magnet is blocked permanent magnetism using dovetail groove by the way that dovetail groove is arranged in rotor core excircle by the utility model
Body, so that permanent magnetism physical efficiency overcomes the powerful centrifugal force generated when permanent magnet machine rotor high speed rotation, and higher using thermal coefficient
Epoxy resin pour and be filled between rotor core and sleeve, the heat for enabling permanent magnet to generate is passed out by epoxy resin in time
It goes, avoids heat and be gathered in inside permanent magnet and cause permanent magnet performance to reduce and irreversible demagnetization even occurs.
Technical principle of the utility model has been described above with reference to specific embodiments.These descriptions are intended merely to explain this reality
With novel principle, and it cannot be construed to the limitation to scope of protection of the utility model in any way.Based on the explanation herein,
Those skilled in the art, which does not need to pay for creative labor, can associate with other specific implementation modes of this utility model,
These modes are fallen within the protection scope of the utility model.
Claims (10)
1. a kind of permanent magnet machine rotor, which is characterized in that the permanent magnet machine rotor includes:
One armature spindle；
One rotor core is sheathed on the armature spindle periphery, a plurality of axial setting is formed on the outer surface of the rotor core
Dovetail groove；
Two magnetic poles, a magnetic north pole and a south magnetic pole, two magnetic poles are symmetrical arranged in the outer surface of the rotor core, each
Magnetic pole at least by two set of permanent magnets at, the cross section of the permanent magnet and the cross section of the dovetail groove match, it is described forever
Magnet insertion is fixed in dovetail groove；
One sleeve, is sheathed on rotor core periphery, and the gap filling between the sleeve and rotor core has epoxy resin.
2. permanent magnet machine rotor according to claim 1, which is characterized in that the permanent magnet is arc-shaped permanent magnet, described
The curvature of permanent magnet inner arc is equal to the rotor core outer circle curvature.
3. permanent magnet machine rotor according to claim 2, which is characterized in that the curvature of the permanent magnet outer arc is equal to permanent magnetism
The eccentricity of internal curved rate, permanent magnet inner arc and permanent magnet outer arc is equal to permanent magnetism body thickness.
4. permanent magnet machine rotor according to claim 1, which is characterized in that the every permanent magnet is along rotor core axial direction
Direction is divided into several segments.
5. permanent magnet machine rotor according to claim 1, which is characterized in that between the rotor core and the armature spindle
It is provided with the anti-rotation element for preventing rotor core from rotating relative to the armature spindle；The anti-rotation element is included in rotor core
The strip inner convex platform and the strip groove for claiming setting is axially engaged in armature spindle periphery that inner periphery is axially arranged, or be included in and turn
The strip groove and axially engage the strip outer lug boss of setting in armature spindle periphery that sub- iron core inner periphery is axially arranged.
6. permanent magnet machine rotor according to claim 1, which is characterized in that the sleeve is carbon fiber sleeve or glass fibers
Tie up sleeve.
7. permanent magnet machine rotor according to claim 1, which is characterized in that the permanent magnet machine rotor further includes one left dynamic
Balance plate, a right dynamic balancing plate, round nut stop washer and a round nut, it is big that the armature spindle right end is provided with outside diameter
In the fixed station of the right dynamic balancing plate internal diameter, the right dynamic balancing plate is set to the rotor core right end and the fixed station
Between；The round nut passes through the armature spindle left end and the left dynamic balancing plate is fixed on the rotor core left end, described
Round nut is set between the round nut and the left dynamic balancing plate with stop washer.
8. permanent magnet machine rotor according to claim 7, which is characterized in that the left dynamic balancing plate and right dynamic balancing plate
Outside diameter is equal to the interior circular diameter of the sleeve.
9. permanent magnet machine rotor according to claim 7, which is characterized in that the left dynamic balancing plate and right dynamic balancing plate
Material is aluminium alloy or brass.
10. a kind of motor, which is characterized in that the motor includes that magneto as claimed in any one of claims 1 to 9 turns
Son.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820825819.5U CN208190374U (en) | 2018-05-30 | 2018-05-30 | A kind of permanent magnet machine rotor and motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820825819.5U CN208190374U (en) | 2018-05-30 | 2018-05-30 | A kind of permanent magnet machine rotor and motor |
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| CN208190374U true CN208190374U (en) | 2018-12-04 |
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| CN201820825819.5U Active CN208190374U (en) | 2018-05-30 | 2018-05-30 | A kind of permanent magnet machine rotor and motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494131A (en) * | 2018-05-30 | 2018-09-04 | 深圳派赛科技有限公司 | A kind of permanent magnet machine rotor and motor |
| CN109599958A (en) * | 2018-12-20 | 2019-04-09 | 江苏大学 | A kind of high reliability, high power density novel permanent-magnet motor |
| CN110836190A (en) * | 2019-09-28 | 2020-02-25 | 金华市东大泵业有限公司 | Internal mesh-shaped two-state heat-conducting permanent magnet shielding tube pump |
| CN111555489A (en) * | 2019-02-08 | 2020-08-18 | 株式会社日立产业机器 | Rotating electrical machine and elevator hoist system |
-
2018
- 2018-05-30 CN CN201820825819.5U patent/CN208190374U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494131A (en) * | 2018-05-30 | 2018-09-04 | 深圳派赛科技有限公司 | A kind of permanent magnet machine rotor and motor |
| CN109599958A (en) * | 2018-12-20 | 2019-04-09 | 江苏大学 | A kind of high reliability, high power density novel permanent-magnet motor |
| CN111555489A (en) * | 2019-02-08 | 2020-08-18 | 株式会社日立产业机器 | Rotating electrical machine and elevator hoist system |
| CN110836190A (en) * | 2019-09-28 | 2020-02-25 | 金华市东大泵业有限公司 | Internal mesh-shaped two-state heat-conducting permanent magnet shielding tube pump |
| CN110836190B (en) * | 2019-09-28 | 2021-06-01 | 金华市东大泵业有限公司 | Internal mesh-shaped two-state heat-conducting permanent magnet shielding tube pump |
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