CN207251335U - A kind of internal permanent magnet synchronous motor rotor - Google Patents
A kind of internal permanent magnet synchronous motor rotor Download PDFInfo
- Publication number
- CN207251335U CN207251335U CN201720845085.2U CN201720845085U CN207251335U CN 207251335 U CN207251335 U CN 207251335U CN 201720845085 U CN201720845085 U CN 201720845085U CN 207251335 U CN207251335 U CN 207251335U
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- Prior art keywords
- magnetic
- rotor case
- rotor
- magnetic slot
- slot group
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Abstract
The utility model describes a kind of internal permanent magnet synchronous motor rotor, including rotor case, magnetic slot group is equipped with the rotor case, the magnetic slot group has eight pairs, per a pair of magnetic slot group it is made of the magnet steel mounting groove of two distributions that are in the shape of the letter V respectively, per the v-shaped openings of a pair of magnetic slot group towards the center of rotor case；A piece of magnetic links are separately installed with each magnet steel mounting groove, the magnetic links are bonded respectively with corresponding magnet steel mounting groove and clamping；Rotor case side on the outside of adjacent two pairs of magnetic slot groups is arc-shaped structure.The utility model reduces cogging torque and cost of manufacture, improves use reliability, and service life is longer, good heat dissipation effect so that power of motor expands.
Description
Technical field
A kind of rotor structure is the utility model is related to, especially a kind of internal permanent magnet synchronous motor rotor, belongs to new energy
Source electric vehicle motor technical field.
Background technology
With the development of new energy technology, new energy electric motor vehicle has become the important development direction in market, and motor is then
It is the technology emphasis of new energy electric motor vehicle.Mostly using DC brushless motor in now current new energy electric motor vehicle, directly
The rotor of stream brushless electric machine is to be embedded in iron core surface by the permanent magnet of certain number of pole-pairs or be embedded in core interior to form.It is forever
Magnet is made using high-coercive force, the rare earth permanent-magnetic materials of hypertonic magnetic induction density such as neodymium iron borons more.This rotor it is permanent
Permanent-magnet steel effect used in the effect of magnet steel and brush motor is similar, is all that enough magnetic field is established in motor gas-gap,
Its difference is mounted in above rotor in the permanent-magnet steel in brshless DC motor, and the magnet steel of brush motor is on stator
Face.The rotor structure of now current DC brushless motor uses surface mount formula magnetic pole more, also known as shoe magnetic pole.Although this set
Meter can obtain the air gap flux density of square, and still, when the motor of this Surface Mount structure runs at high speed, magnet steel can be because of centrifugation
Steel is easily wiped in the effect of power, and motor works long hours motor quick heating, and inside is also easy to produce high temperature, and magnet steel easily demagnetizes, so that shadow
Performance and the service life of motor are rung.And traditional V-arrangement built-in motor torque pulsation is big, magnet steel the piece number is more, cost
Price is also higher.
Utility model content
For above-mentioned deficiency of the prior art, the main purpose of the utility model is that solving existing current electronics rotor
The problem of magnetic sheet is more, of high cost, heat dissipation is slow, and a kind of low cost, the internal permanent magnet synchronous motor of good heat dispersion performance are provided
Rotor.
The technical solution of the utility model：A kind of internal permanent magnet synchronous motor rotor, including rotor case, its feature exist
In, magnetic slot group is equipped with the rotor case, the magnetic slot group has eight pairs, per a pair of magnetic slot group be by two respectively
The magnet steel mounting groove of a distribution that is in the shape of the letter V is formed, per the v-shaped openings of a pair of magnetic slot group towards the center of rotor case；
A piece of magnetic links are separately installed with each magnet steel mounting groove, the magnetic links are pasted with corresponding magnet steel mounting groove respectively
Merge clamping；Rotor case side on the outside of adjacent two pairs of magnetic slot groups is arc-shaped structure.
Optimally, the magnetic slot group is symmetrical arranged both with respect to rotor center, adjacent two magnet steel mounting grooves it
Between spacing it is equal.The utility model employs mutually to be set at equal intervals, and the whole machine balancing for the magnet steel that so can be is more preferable,
Structure is also more stable.
Optimally, four locating slots are additionally provided with the rotor case center, the locating slot is arc-shaped and phase
For rotor case center symmetric setting.It can be easily installed by locating slot, while the setting of four locating slots is also more steady
It is fixed.
Optimally, a protrusion is formed respectively on the corresponding rotor case lateral surface in every a pair of magnetic slot group tip.It is logical
Setting protrusion is crossed, the lateral surface for the rotor that can be forms multiple arcs structure, so for circular configuration, has more
Security, be not easy wipe hang.
Relative to the prior art, the utility model has the advantages that：
1st, the utility model reduces cogging torque using semicircle male structure, reduces cost of manufacture, improves using reliable
Property, service life is longer, cost lower than common Surface Mount 15%.
2nd, good heat dissipation effect：The utility model employs built-in magnetic steel structure, therefore rotor and magnet steel contact area
Greatly, there is good cooling effect.
3rd, the protection of centrifugal force when the built-in structure of the utility model is to reducing the demagnetization of armature-reaction and running at high speed
All have a clear superiority, which is applicable in the weak magnetic control of motor, can improve the velocity interval of motor invariable power so that power of motor
Expand.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of internal permanent magnet synchronous motor rotor of the utility model.
In figure, 1-rotor case, 2-magnet steel mounting groove, 3-magnetic links, 4-locating slot, 5-raised.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of internal permanent magnet synchronous motor rotor of the utility model, including rotor case 1, described
Magnetic slot group is equipped with rotor case 1, the magnetic slot group there are eight pairs, and it by two is in V words to be respectively per a pair of of magnetic slot group
The magnet steel mounting groove 2 of shape distribution is formed, per the v-shaped openings of a pair of magnetic slot group towards the center of rotor case 1.Described
Magnetic slot group is symmetrical arranged both with respect to rotor center, and the spacing between adjacent two magnet steel mounting grooves 2 is equal.In every a pair
A protrusion 5 is formed respectively on corresponding 1 lateral surface of rotor case in magnetic slot group tip.Divide in each magnet steel mounting groove 2
A piece of magnetic links 3 are not installed, the magnetic links 3 are bonded respectively with corresponding magnet steel mounting groove 2 and clamping；Adjacent two pairs of magnetic
1 side of rotor case on the outside of steel tank group is arc-shaped structure.Four locating slots are additionally provided with 1 center of rotor case
4, the locating slot 4 is arc-shaped and relative to 1 center symmetric setting of rotor case.
The electronics rotor operation principle of the utility model is identical with the principle of existing rotor, but due to structure design more
With specific aim, therefore global reliability and stability are more preferable, are not easy to wipe cylinder, service life also greatly prolongs.
It should be noted that above example is only to illustrate technical solutions of the utility model rather than restriction technologies scheme,
Although applicant is explained in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art should manage
Solution, those to technical solutions of the utility model carry out modification or equivalent substitution, it is impossible to depart from the technical program objective and
Scope, should all cover among the utility model claims scope.
Claims (4)
1. a kind of internal permanent magnet synchronous motor rotor, including rotor case（1）, it is characterised in that in the rotor case（1）
Interior to be equipped with magnetic slot group, the magnetic slot group has eight pairs, is by the magnetic of two distributions that are in the shape of the letter V respectively per a pair of magnetic slot group
Steel mounting groove（2）Form, per the v-shaped openings of a pair of magnetic slot group towards rotor case（1）Center；In each magnet steel
Mounting groove（2）Inside it is separately installed with a piece of magnetic links（3）, the magnetic links（3）Respectively with corresponding magnet steel mounting groove（2）Patch
Merge clamping；Rotor case on the outside of adjacent two pairs of magnetic slot groups（1）Side is arc-shaped structure.
A kind of 2. internal permanent magnet synchronous motor rotor according to claim 1, it is characterised in that the magnetic slot group
It is symmetrical arranged both with respect to rotor center, adjacent two magnet steel mounting grooves（2）Between spacing it is equal.
3. a kind of internal permanent magnet synchronous motor rotor according to claim 2, it is characterised in that in the rotor case
（1）Center is additionally provided with four locating slots（4）, the locating slot（4）It is arc-shaped and relative to rotor case（1）Center pair
Claim to set.
4. a kind of internal permanent magnet synchronous motor rotor according to claim 3, it is characterised in that in every a pair of of magnetic slot
The corresponding rotor case in group tip（1）A protrusion is formed on lateral surface respectively（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720845085.2U CN207251335U (en) | 2017-07-13 | 2017-07-13 | A kind of internal permanent magnet synchronous motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720845085.2U CN207251335U (en) | 2017-07-13 | 2017-07-13 | A kind of internal permanent magnet synchronous motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207251335U true CN207251335U (en) | 2018-04-17 |
Family
ID=61878465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720845085.2U Expired - Fee Related CN207251335U (en) | 2017-07-13 | 2017-07-13 | A kind of internal permanent magnet synchronous motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207251335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302032A (en) * | 2018-12-14 | 2019-02-01 | 重庆迈兴新能源科技有限公司 | A kind of battery-operated motor cycle permanent-magnet synchronous driving motor |
-
2017
- 2017-07-13 CN CN201720845085.2U patent/CN207251335U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302032A (en) * | 2018-12-14 | 2019-02-01 | 重庆迈兴新能源科技有限公司 | A kind of battery-operated motor cycle permanent-magnet synchronous driving motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20190713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |