CN206628911U - Built-in permanent magnetic rotor and motor - Google Patents
Built-in permanent magnetic rotor and motor Download PDFInfo
- Publication number
- CN206628911U CN206628911U CN201720334149.2U CN201720334149U CN206628911U CN 206628911 U CN206628911 U CN 206628911U CN 201720334149 U CN201720334149 U CN 201720334149U CN 206628911 U CN206628911 U CN 206628911U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- flexure strip
- built
- trough
- permanent magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of built-in permanent magnetic rotor and motor, rotor includes rotor body, the permanent magnet trough of configuration permanent magnet is provided with the inside of rotor body, flexure strip is left on the base and/or side of permanent magnet trough, one end of the flexure strip connects as one with trough rim, and the other end is in trough rim disconnection can free movement state.When installing permanent magnet, permanent magnet is squeezed between flexure strip top and permanent magnet trough top margin, and permanent magnet itself is closely adhered into permanent magnet trough top margin using elastic force caused by the elastic deformation of flexure strip.The utility model easily fixed permanent magnet, reduction can even cancel the use of filler, mitigate the vibration that permanent magnet is subject to, avoid permanent magnet from demagnetizing.
Description
Technical field
Technical field of motors is the utility model is related to, particularly a kind of built-in permanent magnetic rotor and motor.
Background technology
Embedded actuator is integrally mainly made up of stator and rotor.Stator is fixed, by 3 groups of stator body 2 and winding
Into stator body 2 is overrided to form by stator lasmination, and winding 3 is wrapped in stator body teeth portion.Rotor rotates, by rotor
Body 1 and permanent magnet 4 are formed, and rotor body 1 is overrided to form by rotor pack.Permanent magnet trough is configured with the inside of rotor body, forever
Magnet 4 is fixed in permanent magnet trough.
Existing built-in permanent magnetic motor peace, which turns permanent magnet 4, mainly two ways.A kind of mode is using resin, viscose glue
Permanent magnet 4 is set to be fixed in permanent magnet trough Deng filler, as shown in figure 1, the problem of which is present is：Filler because aging,
Heated wait influences, and may come off, lose viscosity, cause permanent magnet 4 to loosen, so as to cause motor to be not normally functioning.
Another way is in punching rotor body lamination, as shown in Fig. 2 permanent magnet trough rim is provided with projection 5, using forever
Cooperation between magnet 4 and permanent magnet trough, and the fillers such as resin, viscose glue, which are used in combination, makes permanent magnet 4 be fixed on permanent magnet trough
It is interior.The problem of existing be：Fit precision between permanent magnet 4 and permanent magnet trough is poor, and permanent magnet can in motor operation course
Larger movement can be had, influences motor normal operation.
Utility model content
The purpose of this utility model is to provide a kind of built-in permanent magnetic rotor and motor, to solve in the prior art
The problem of permanent magnet loosens is easily caused using filler.
The technical scheme for realizing the utility model purpose is：A kind of built-in permanent magnetic rotor, including rotor body, turn
The permanent magnet trough of configuration permanent magnet is provided with the inside of sub- body, flexure strip is left on the base and/or side of permanent magnet trough, it is described
One end of flexure strip connects as one with trough rim, and the other end is in trough rim disconnection can free movement state.
Further, the flexure strip is integrally formed with permanent magnet trough.
Further, the flexure strip is circular arc or polygon.
Further, when not installing permanent magnet, the distance of flexure strip top and permanent magnet trough top margin is less than the thickness of permanent magnet
Degree.
Further, more than one bossing is left on the base of the permanent magnet trough, and flexure strip is arranged on lug boss
The one or both sides divided.
Further, the flexure strip arranges with single arrangement side by side or side by side in pairs.
Further, the movable extreme direction of the freedom of each two flexure strip is in the same direction or reversely.
Further, flexure strip width is identical.
Further, flexure strip width is different.
The utility model also provides a kind of magneto, including the built-in permanent magnetic rotor described in any of the above-described.
Compared with prior art, its remarkable advantage is the utility model：(1) can easily fixed permanent magnet, avoid electricity
Permanent magnet moves in permanent magnet trough in machine running；(2) it can reduce or even cancel magneto when installing permanent magnet
The use of filler, avoid because the factor such as filler aging, heated causes to come off, loses the problems such as viscosity；(3) flexure strip can be inhaled
Receiving portions vibrate, and reduce permanent magnet and are demagnetized because of caused by vibration risk；(4) utilization rate of rotor body laminate is improved；
(5) convenient installation and fixed permanent magnet, reduce manufacturing cost；When disassembling motor, permanent magnet can be in the presence of external force, more
Permanent magnet trough is simply removed, improves the recycling rate of waterused of permanent magnet and other materials, saves the use of the scarce resources such as rare earth
Amount.
The utility model is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the partial sectional view of existing built-in permanent magnetic motor.
Fig. 2 is the existing built-in permanent magnetic motor partial sectional view with bossing.
Fig. 3 is the flexure strip operating diagram in the utility model embodiment 1.
Fig. 4 is built-in permanent magnetic motor sectional view in the utility model embodiment 1.
Fig. 5 (a) is flexure strip schematic diagram when not installing permanent magnet, and Fig. 5 (b) is flexure strip schematic diagram after installation permanent magnet.
Fig. 6 is flexure strip position view in the utility model embodiment 2.
Fig. 7 is that flexure strip arranges schematic diagram in the utility model embodiment 3.
Fig. 8 is elastic plate shape schematic diagram in the utility model embodiment 4.
Fig. 9 is the schematic diagram that permanent magnet trough base is provided with bossing in the utility model embodiment 5.
Embodiment
Illustrate the side of being preferable to carry out for the built-in permanent magnetic rotor and motor that the utility model is related to below in conjunction with the accompanying drawings
Formula.Embodiment 1
Fig. 3 is the flexure strip operating diagram in embodiment 1, and Fig. 4 is built-in permanent magnetic motor section view in embodiment 1
Figure.
The built-in permanent magnetic rotor of present embodiment includes rotor body, has configuration permanent magnet on the inside of rotor body
4 permanent magnet trough, the side of permanent magnet trough are provided with projection, the side of opposite side and the base of permanent magnet trough be provided with one with
On width identical flexure strip 6, the flexure strip 6 is integrally formed with permanent magnet trough, the trough rim connection of one end and permanent magnet trough
It is integrated, the trough rim disconnection of the other end and permanent magnet trough is in can free movement state.
The cross section of the flexure strip 6 is circular arc, and the flexure strip 6 on base is set up in parallel with single, per two neighboring
The movable extreme direction of freedom of flexure strip 6 is in the same direction.The 6 free movable end of flexure strip of side is upward.
In punching rotor body lamination, this section of flexure strip 6, the one end of flexure strip 6 are reserved with the permanent magnet trough rim of lamination
Connected as one with trough rim, the other end is in trough rim disconnection can free movement state.As shown in Fig. 5 (a) and Fig. 5 (b), flexure strip
6 when not being squeezed, and the distance of flexure strip top and permanent magnet trough top margin is less than the thickness of permanent magnet 4.Permanent magnet 4 is installed
When, permanent magnet 4 is squeezed between flexure strip top and permanent magnet trough top margin, and utilizes elastic force caused by the elastic deformation of flexure strip 6
Permanent magnet 4 itself is closely adhered to permanent magnet trough top margin.
The magneto of the present embodiment is the motor using above-mentioned built-in permanent magnetic rotor.
Embodiment 2
Fig. 6 is the flexure strip operating diagram of present embodiment.In present embodiment two sides of permanent magnet trough and
Base is provided with flexure strip 6, and the flexure strip 6 on base is is arranged side by side in the same direction.Present embodiment other structures and embodiment party
Formula 1 is identical.
Embodiment 3
As shown in fig. 7, the flexure strip 6 on permanent magnet trough base is set up in parallel in pairs in present embodiment, two paired bullets
Property piece 6 is in opposite direction.Other structures are identical with embodiment 2.
Embodiment 4
As shown in figure 8, the flexure strip 6 on permanent magnet trough base is shaped as polygon in present embodiment, it is preferred that using ladder
Shape structure, trapezoidal top margin are bonded with the bottom of permanent magnet 4.Present embodiment other structures are identical with embodiment 2.Embodiment
5
As shown in figure 9, being provided with bossing 7 for permanent magnet trough base in present embodiment, flexure strip 6 is arranged on projection
The both sides of part 7.When not being pressed into permanent magnet 4, the height of flexure strip 6 is slightly above bossing height, after being pressed into permanent magnet 4,
Flexure strip 6 can compress permanent magnet 4.
Air gap between permanent magnet 4 and permanent magnet trough base can increase the magnetic resistance in magnetic circuit, prevent permanent magnet 4 from abundant
Utilize.Base sets bossing 7, is turned on beneficial to magnetic circuit, reduces magnetic resistance, avoids reducing the utilization rate of permanent magnet 4.
Although the utility model is disclosed above with preferred embodiment, so it is not limited to the utility model.This reality
With new those of ordinary skill in the art, do not departing from spirit and scope of the present utility model, it is each when that can make
The change and retouching of kind.Therefore, the scope of protection of the utility model is worked as and is defined depending on those as defined in claim.
Claims (10)
1. a kind of built-in permanent magnetic rotor, including rotor body, rotor body inner side is provided with the permanent magnetism of configuration permanent magnet
Body groove, it is characterised in that flexure strip is left on the base and/or side of permanent magnet trough, one end and the trough rim of the flexure strip connect
One is connected in, the other end is in trough rim disconnection can free movement state.
2. built-in permanent magnetic rotor according to claim 1, it is characterised in that the flexure strip and permanent magnet trough one
It is body formed.
3. built-in permanent magnetic rotor according to claim 1, it is characterised in that the flexure strip is circular arc or more
Side shape.
4. built-in permanent magnetic rotor according to claim 1, it is characterised in that when permanent magnet is not installed, flexure strip
The distance of top and permanent magnet trough top margin is less than the thickness of permanent magnet.
5. built-in permanent magnetic rotor according to claim 1, it is characterised in that leave on the base of the permanent magnet trough
More than one bossing, flexure strip are arranged on the one or both sides of bossing.
6. built-in permanent magnetic rotor according to claim 1, it is characterised in that the flexure strip is with single peace side by side
Row arranges side by side in pairs.
7. built-in permanent magnetic rotor according to claim 1, it is characterised in that the freely activity of each two flexure strip
Extreme direction is in the same direction or reversely.
8. built-in permanent magnetic rotor according to claim 1, it is characterised in that flexure strip width is identical.
9. built-in permanent magnetic rotor according to claim 1, it is characterised in that flexure strip width is different.
10. a kind of magneto, it is characterised in that turn including the built-in permanent magnetic motor any one of claim 1-9
Son.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720334149.2U CN206628911U (en) | 2017-03-31 | 2017-03-31 | Built-in permanent magnetic rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720334149.2U CN206628911U (en) | 2017-03-31 | 2017-03-31 | Built-in permanent magnetic rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206628911U true CN206628911U (en) | 2017-11-10 |
Family
ID=60207833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720334149.2U Expired - Fee Related CN206628911U (en) | 2017-03-31 | 2017-03-31 | Built-in permanent magnetic rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206628911U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667175A (en) * | 2017-03-31 | 2018-10-16 | 南京理工大学 | Built-in permanent magnetic rotor and motor |
| CN109980819A (en) * | 2019-05-06 | 2019-07-05 | 哈尔滨理工大学 | A kind of inner rotator of permanent magnet synchronous motor |
| WO2019179863A1 (en) * | 2018-03-21 | 2019-09-26 | Zf Friedrichshafen Ag | Rotor of a permanent-magnet-excited electric machine |
-
2017
- 2017-03-31 CN CN201720334149.2U patent/CN206628911U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667175A (en) * | 2017-03-31 | 2018-10-16 | 南京理工大学 | Built-in permanent magnetic rotor and motor |
| WO2019179863A1 (en) * | 2018-03-21 | 2019-09-26 | Zf Friedrichshafen Ag | Rotor of a permanent-magnet-excited electric machine |
| CN109980819A (en) * | 2019-05-06 | 2019-07-05 | 哈尔滨理工大学 | A kind of inner rotator of permanent magnet synchronous 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: 20171110 Termination date: 20200331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |