CN109167450A - Motor rotor positioning structure and motor - Google Patents
Motor rotor positioning structure and motor Download PDFInfo
- Publication number
- CN109167450A CN109167450A CN201811259920.XA CN201811259920A CN109167450A CN 109167450 A CN109167450 A CN 109167450A CN 201811259920 A CN201811259920 A CN 201811259920A CN 109167450 A CN109167450 A CN 109167450A
- Authority
- CN
- China
- Prior art keywords
- location structure
- positioning
- baffle
- convex platform
- rotor
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 54
- 230000004323 axial length Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 25
- 239000010959 steel Substances 0.000 abstract description 25
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000010415 tropism Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a motor rotor positioning structure and a motor. This electric motor rotor location structure includes optical axis (1), rotor core (3) on optical axis (1) are established to baffle (2) and cover, be provided with on optical axis (1) and carry out axial positioning's shaft shoulder (4) to baffle (2), rotor core (3) and baffle (2) fixed connection, still be provided with first location structure and second location structure on optical axis (1), first location structure is used for carrying out the circumference location to baffle (2), second location structure is used for fixing a position magnetizing coil. According to the motor rotor positioning structure disclosed by the invention, the magnetizing positioning of the magnetic steel and the magnetizing coil can be effectively met, the magnetizing direction is ensured to be accurate, and the magnetized rotating shaft magnetic field is in accordance with the design expectation.
Description
Technical field
The invention belongs to technical field of motors, and in particular to a kind of rotor location structure and motor.
Background technique
As shown in Figure 1, existing rotation shaft of high-speed motor structure mass optical axis 1, preceding rotor stop plate 2, rotor core 3, magnet steel 4
With rear rotor stop plate 5, existing rotation shaft of high-speed motor manufacture craft is rear rotor stop plate 5 and the heating interference of rotor core 3 to light
It on axis 1, is limited using the shaft shoulder position of optical axis 1, then the magnet steel 4 with magnetic is assembled in rotor core 3, is finally assembled
Preceding rotor stop plate 2.
This assembly method has following defect: 1. magnet steel is that band magnetic assembles, magnetic relatively strong to assembly difficulty low efficiency, and
And with the folded high increase of rotor, assembly magnet steel quantity is more, and production efficiency is lower；2. magnet steel quantity is more, assembling process is easily sent out
The anti-loaded phenomenon of magnetisation steel, if find not in time due to magnetism fixed it is anti-loaded after cause flux waveforms distort motor operation when generation
Vibration；3. shaft band magnetic correction dynamic balancing will affect dynamic balancing data, it is unable to get stability number etc..
To solve the above-mentioned problems, the manufacture craft that magnetizes after a kind of rotation shaft of high-speed motor is provided in the prior art, i.e., first
Complete preceding rotor stop plate 2, rear rotor stop plate 5, rotor core 3, (the magnet steel not carrying magnetic at this time, but with taking of magnet steel 4 not magnetized
Tropism), shaft dynamic balance check is then carried out, finally using magnetize power supply and Magnetizing coil clamp to magnetizing after shaft；The work
Skill can increase production efficiency, and product caused by avoiding magnet steel anti-loaded is bad, and shaft can first dynamic balance calibration raising correction effect
Rate and accuracy.
But since magnetizing coil after manufacturing fixed by its magnetizing direction, thus magnetize after technique when every motor turn
The relative position of magnet steel and magnetizing coil inside sub- location structure must be fixed unanimously, and the production magnetized after shaft is just able to achieve
With volume production.Otherwise since the position of orientation and magnet steel in rotor core of magnetizing of magnet steel has been fixed, it will lead to shaft and fill
Magnetic field after magnetic can completely offset from expected design.So the rotation shaft of high-speed motor that the design for positioning of magnetizing magnetizes for after is especially heavy
It wants.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that providing a kind of rotor location structure and motor, Neng Gouyou
Effect meets the positioning of magnetizing of magnet steel and magnetizing coil, guarantees that magnetizing direction is accurate, makes shaft magnetic field and expected design after magnetizing
It is consistent.
To solve the above-mentioned problems, the present invention provides a kind of rotor location structure, including optical axis, baffle and is set in
Rotor core on optical axis is provided with the shaft shoulder that axially position is carried out to baffle on optical axis, and rotor core is fixedly connected with baffle,
The first location structure and the second location structure are additionally provided on optical axis, the first location structure is circumferentially positioned for carrying out to baffle,
Second location structure is used to position magnetizing coil.
Preferably, the first location structure includes the positioning convex platform being arranged on the shaft shoulder, and positioning convex platform is convex to baffle along axial direction
Out, the positioning groove matched with positioning convex platform is provided on baffle.
Preferably, clearance fit between positioning convex platform and positioning groove.
Preferably, positioning convex platform is rectangular block, and the shape of positioning groove and positioning convex platform matches, the radial direction of positioning convex platform
Height is less than the radial height of positioning groove, and the axial length of positioning convex platform is less than the axial length of positioning groove；And/or it is fixed
The circumferential width of position boss is less than the circumferential width of positioning groove.
Preferably, positioning convex platform is multiple, and multiple positioning convex platforms are uniformly distributed along the circumferential direction of the shaft shoulder.
Preferably, the first location structure includes the positioning groove being arranged on the shaft shoulder, is provided on baffle towards the shaft shoulder and is stretched out
Positioning convex platform, positioning convex platform matches with positioning groove.
Preferably, the location hole axially penetrated through is correspondingly arranged on baffle and rotor core.
Preferably, the second location structure includes the positioning spline that separate shaft shoulder one end of optical axis is arranged in.
Preferably, the second location structure includes the positioning key block that separate shaft shoulder one end of optical axis is arranged in.
According to another aspect of the present invention, a kind of motor, including rotor location structure are provided, the rotor is fixed
Bit architecture is above-mentioned rotor location structure.
Rotor location structure provided by the invention, including optical axis, baffle and the rotor core being set on optical axis, light
The shaft shoulder that axially position is carried out to baffle is provided on axis, rotor core is fixedly connected with baffle, and first is additionally provided on optical axis
Location structure and the second location structure, the first location structure be used for baffle carry out it is circumferentially positioned, the second location structure for pair
Magnetizing coil positioning.The knot positioned respectively to baffle and magnetizing coil is provided on the optical axis of the rotor location structure
Structure, thus magnetize after progress technique when, the installation site of baffle and magnetizing coil can be positioned on the basis of optical axis,
Since baffle is to be fixedly connected with rotor core, and magnet steel is fixedly disposed on rotor core, therefore work as baffle phase
After determining for the position of optical axis, magnet steel is also accordingly determined relative to the position of optical axis, namely passes through optical axis with can be convenient
It is accurately positioned the relative position of magnet steel and magnetizing coil, guarantees that magnetizing direction is accurate, make the shaft magnetic field after magnetizing and design
It is expected that being consistent；Since magnetizing coil volume is big, quality is heavy and coil easy damaged etc., this programme simultaneously can also be to avoid biographies
System rotation magnetizing coil caused coil damage and working hour waste when being positioned, improve the production effect of rotor location structure
Rate and reliability.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the rotor location structure of the prior art；
Fig. 2 is the decomposition texture schematic diagram of the rotor location structure of the embodiment of the present invention；
Fig. 3 is the schematic perspective view of the optical axis of the rotor location structure of the embodiment of the present invention；
Fig. 4 is the enlarged structure schematic diagram at the Q of Fig. 3；
Fig. 5 is the structural schematic diagram of the optical axis of the rotor location structure of the embodiment of the present invention；
Fig. 6 is the side structure schematic view of the optical axis of the rotor location structure of the embodiment of the present invention；
Fig. 7 is the schematic cross-sectional view of the baffle of the rotor location structure of the embodiment of the present invention；
Fig. 8 is the overlooking structure diagram of the baffle of the rotor location structure of the embodiment of the present invention.
Appended drawing reference indicates are as follows:
1, optical axis；2, baffle；3, rotor core；4, the shaft shoulder；5, positioning convex platform；6, positioning groove；7, location hole；8, it positions
Keyway.
Specific embodiment
In conjunction with referring to fig. 2 to shown in Fig. 8, according to an embodiment of the invention, rotor location structure includes optical axis 1, gear
Plate 2 and the rotor core 3 being set on optical axis 1 are provided with the shaft shoulder 4 that axially position is carried out to baffle 2, rotor iron on optical axis 1
Core 3 is fixedly connected with baffle 2, and the first location structure and the second location structure are additionally provided on optical axis 1, and the first location structure is used for
Baffle 2 is carried out it is circumferentially positioned, the second location structure be used for magnetizing coil position.
It is provided with the structure positioned respectively to baffle 2 and magnetizing coil on the optical axis 1 of the rotor location structure,
When the technique that therefore magnetizes after progress, the installation site of baffle 2 and magnetizing coil can be positioned on the basis of optical axis 1,
Since baffle 2 is to be fixedly connected with rotor core 3, and rotor punching after design fix by magnet steel groove profile and relative position,
So the positioning of rotor core 3 and magnet steel is not necessarily to special solution, therefore after baffle 2 is determined relative to the position of optical axis 1, magnetic
Steel is also accordingly determined relative to the position of optical axis 1, namely magnet steel and magnetizing coil is accurately positioned by optical axis 1 with can be convenient
Relative position, eventually by rotor core 3 and magnet steel positioning, rotor core 3 and baffle 2 positioning, baffle 2 and optical axis 1 positioning,
Optical axis 1 and Magnetizing coil clamp position, to realize (not magnetizing) magnet steel and magnetizing coil phase inside every rotation shaft of high-speed motor
It is fixed to position consistent, guarantee that magnetizing direction is accurate, the shaft magnetic field after magnetizing is made to be consistent with expected design；Due to the line that magnetizes
Circle body product is big, quality is heavy and coil easy damaged etc., therefore this programme can also be determined simultaneously to avoid conventional rotary magnetizing coil
Caused coil damage and working hour waste, improve the production efficiency and reliability of rotor location structure when position.
In the present embodiment, the first location structure includes the positioning convex platform 5 being arranged on the shaft shoulder 4, and positioning convex platform 5 is along axial direction
It is protruded to baffle 2, is provided with the positioning groove 6 matched with positioning convex platform 5 on baffle 2.Determine to baffle 2 and optical axis 1
When position, it is only necessary to be aligned the positioning groove 6 on baffle 2 with the positioning convex platform 5 on optical axis 1, and positioning groove 6 is made to be stuck in positioning
On boss 5, while axially position is carried out to baffle 2 by the shaft shoulder 4, it will be able to complete the circumferential direction and axis between optical axis 1 and baffle 2
To positioning.
Preferably, clearance fit between positioning convex platform 5 and positioning groove 6, so as to conveniently realize positioning convex platform 5 with
Installation cooperation between positioning groove 6, reduces assembly difficulty, improves installation effectiveness.
Positioning convex platform 5 is rectangular block, and positioning groove 6 and the shape of positioning convex platform 5 match, the radial height of positioning convex platform 5
The radial height L2 that L1 is less than positioning groove 6 is spent, the axial length H1 of positioning convex platform 5 is less than the axial length H2 of positioning groove 6.
By the way that above-mentioned size relationship is arranged, the size design that can be avoided positioning convex platform 5 is excessive, and rotor hot jacket is caused to lose
It loses, or axial assembly is not in place leads to the unsaturation that magnetizes.
Preferably, the circumferential width S1 of positioning convex platform 5 is less than the circumferential width S2 of positioning groove 6, so that 5 He of positioning convex platform
Positioning groove 6 forms small―gap suture cooperation in circumferential direction, can facilitate circumferentially positioned between realization rotor core 3 and optical axis 1.
Positioning convex platform 5 or semicolumn, triangular prism either other shapes of convex block.In the present embodiment, it positions
Boss 5 extends to the periphery wall of the shaft shoulder 4 from the periphery wall of optical axis 1 along radial direction, guarantees positioning convex platform 5 in radial directions
There is enough length, to provide enough structural strengths.
Preferably, positioning convex platform 5 is multiple, and multiple positioning convex platforms 5 are uniformly distributed along the circumferential direction of the shaft shoulder 4, can make axis
Active force of the shoulder 4 suffered by circumferential direction is more balanced, avoids causing to determine individually due to each 5 unbalance stress of positioning convex platform
The position larger damage that deforms of 5 stress of boss.
In another unshowned embodiment, the first location structure includes the positioning groove 6 being arranged on the shaft shoulder 4, gear
The positioning convex platform 5 stretched out towards the shaft shoulder 4 is provided on plate 2, positioning convex platform 5 is matched with positioning groove 6.
The location hole 7 axially penetrated through is correspondingly arranged on baffle 2 and rotor core 3.It can between rotor core 3 and baffle 2
To be achieved a fixed connection by the screw rod etc. being threaded through in location hole 7.The positioning on location hole 7 and rotor core 3 on baffle 2
Hole 7 is located on the same circumference centered on the central axis of rotor core 3, and the distribution position in the circumferential direction of the circumference
Set it is identical, so as to facilitate the secure fit realized between rotor core 3 and baffle 2.
In the present embodiment, the second location structure includes the positioning spline 8 that 4 one end of the separate shaft shoulder of optical axis 1 is arranged in.
In another unshowned embodiment, the second location structure includes 4 one end of the separate shaft shoulder that optical axis 1 is arranged in
Position key block.
By the way that the second location structure is arranged on optical axis 1, it can process on Magnetizing coil clamp and be tied with the second positioning
Structure carries out the structure of location fit, finally ensures that magnetizing direction is accurate with the location structure on optical axis 1 using magnetizing coil.
Since rotor punching after design fix by magnet steel groove profile and relative position, so rotor core 3 and magnet steel are determined
Position is not necessarily to special solution.When assembly, baffle 2 is assembled together with rotor core 3, is then fitted on optical axis 1, utilizes optical axis 1
Positioning is realized in positioning between baffle 2, and the final positioning spline 8 using on optical axis 1 determines that magnetizing coil is opposite with optical axis 1
Position.
According to an embodiment of the invention, motor includes rotor location structure, which is above-mentioned
Rotor location structure.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.Above only
It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair
Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as guarantor of the invention
Protect range.
Claims (10)
1. a kind of rotor location structure, which is characterized in that including optical axis (1), baffle (2) and be set in the optical axis (1)
On rotor core (3), be provided with the shaft shoulder (4) that the baffle (2) are carried out with axially position on the optical axis (1), described turn
Sub- iron core (3) is fixedly connected with the baffle (2), and the first location structure and the second positioning knot are additionally provided on the optical axis (1)
Structure, first location structure is circumferentially positioned for carrying out to the baffle (2), and second location structure is used for the line that magnetizes
Draw a circle to approve position.
2. rotor location structure according to claim 1, which is characterized in that first location structure includes setting
Positioning convex platform (5) on the shaft shoulder (4), the positioning convex platform (5) are protruded along axial direction to the baffle (2), the baffle
(2) positioning groove (6) matched with the positioning convex platform (5) is provided on.
3. rotor location structure according to claim 2, which is characterized in that the positioning convex platform (5) with it is described fixed
Clearance fit between position groove (6).
4. rotor location structure according to claim 3, which is characterized in that the positioning convex platform (5) is rectangular block,
The positioning groove (6) and the shape of the positioning convex platform (5) match, and the radial height of the positioning convex platform (5) is less than institute
The radial height of positioning groove (6) is stated, the axial direction that the axial length of the positioning convex platform (5) is less than the positioning groove (6) is long
Degree；And/or the circumferential width of the positioning convex platform (5) is less than the circumferential width of the positioning groove (6).
5. rotor location structure according to claim 2, which is characterized in that the positioning convex platform (5) be it is multiple, it is more
A positioning convex platform (5) is uniformly distributed along the circumferential direction of the shaft shoulder (4).
6. rotor location structure according to claim 1, which is characterized in that first location structure includes setting
Positioning groove (6) on the shaft shoulder (4) is provided with the positioning convex platform stretched out towards the shaft shoulder (4) on the baffle (2)
(5), the positioning convex platform (5) matches with the positioning groove (6).
7. rotor location structure according to any one of claim 1 to 6, which is characterized in that the baffle (2) and
The location hole (7) axially penetrated through is correspondingly arranged on the rotor core (3).
8. rotor location structure according to any one of claim 1 to 6, which is characterized in that second positioning
Structure includes positioning spline (8) of the setting in the separate shaft shoulder (4) one end of the optical axis (1).
9. rotor location structure according to any one of claim 1 to 6, which is characterized in that the second location structure
Including the positioning key block in the separate shaft shoulder (4) one end of the optical axis (1) is arranged.
10. a kind of motor, including rotor location structure, which is characterized in that the rotor location structure is wanted for right
Rotor location structure described in asking any one of 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259920.XA CN109167450A (en) | 2018-10-26 | 2018-10-26 | Motor rotor positioning structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259920.XA CN109167450A (en) | 2018-10-26 | 2018-10-26 | Motor rotor positioning structure and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109167450A true CN109167450A (en) | 2019-01-08 |
Family
ID=64875973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811259920.XA Pending CN109167450A (en) | 2018-10-26 | 2018-10-26 | Motor rotor positioning structure and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109167450A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698053A (en) * | 2019-03-14 | 2019-04-30 | 常州富兴机电有限公司 | A kind of high-precision magnetizes positioning tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201887635U (en) * | 2010-12-20 | 2011-06-29 | 中山大洋电机股份有限公司 | P-m rotor structure |
| US20120017426A1 (en) * | 2010-07-20 | 2012-01-26 | Mike Bonilla Lopez | Structure for post-assembly magnetization of a permanent magnet rotor, field keyed to a rotating shaft |
| CN104426263A (en) * | 2013-08-26 | 2015-03-18 | 苏州奥宝杰电机科技有限公司 | Rotor and brushless motor adopting same |
| CN105186741A (en) * | 2014-05-27 | 2015-12-23 | 比亚迪股份有限公司 | Motor rotor and motor therewith |
| CN207819581U (en) * | 2017-12-25 | 2018-09-04 | 珠海格力电器股份有限公司 | Rotor shaft and motor |
| CN208806673U (en) * | 2018-10-26 | 2019-04-30 | 珠海格力电器股份有限公司 | Motor rotor positioning structure and motor |
-
2018
- 2018-10-26 CN CN201811259920.XA patent/CN109167450A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120017426A1 (en) * | 2010-07-20 | 2012-01-26 | Mike Bonilla Lopez | Structure for post-assembly magnetization of a permanent magnet rotor, field keyed to a rotating shaft |
| CN201887635U (en) * | 2010-12-20 | 2011-06-29 | 中山大洋电机股份有限公司 | P-m rotor structure |
| CN104426263A (en) * | 2013-08-26 | 2015-03-18 | 苏州奥宝杰电机科技有限公司 | Rotor and brushless motor adopting same |
| CN105186741A (en) * | 2014-05-27 | 2015-12-23 | 比亚迪股份有限公司 | Motor rotor and motor therewith |
| CN207819581U (en) * | 2017-12-25 | 2018-09-04 | 珠海格力电器股份有限公司 | Rotor shaft and motor |
| CN208806673U (en) * | 2018-10-26 | 2019-04-30 | 珠海格力电器股份有限公司 | Motor rotor positioning structure and motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698053A (en) * | 2019-03-14 | 2019-04-30 | 常州富兴机电有限公司 | A kind of high-precision magnetizes positioning tool |
| CN109698053B (en) * | 2019-03-14 | 2024-04-30 | 常州富兴机电有限公司 | High-precision magnetizing and positioning tool |
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