CN105006925A - Method for manufacturing permanent magnet rotor of motor - Google Patents
Method for manufacturing permanent magnet rotor of motor Download PDFInfo
- Publication number
- CN105006925A CN105006925A CN201510508645.0A CN201510508645A CN105006925A CN 105006925 A CN105006925 A CN 105006925A CN 201510508645 A CN201510508645 A CN 201510508645A CN 105006925 A CN105006925 A CN 105006925A
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- China
- Prior art keywords
- yoke
- unit
- permanent magnet
- motor
- groove
- Prior art date
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- Granted
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 44
- 230000005291 magnetic Effects 0.000 claims abstract description 46
- 230000001681 protective Effects 0.000 claims description 21
- 238000004080 punching Methods 0.000 claims description 17
- 239000000126 substance Substances 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000003014 reinforcing Effects 0.000 claims description 4
- 241000168254 Siro Species 0.000 claims description 3
- 230000000996 additive Effects 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000875 corresponding Effects 0.000 claims description 3
- 238000009987 spinning Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 239000004020 conductor Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001413 cellular Effects 0.000 description 1
- 108091006028 chimera Proteins 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005294 ferromagnetic Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Abstract
The invention discloses a method for manufacturing a permanent magnet rotor of a motor, and belongs to the field of motor rotor manufacturing methods. The method specifically comprises manufacturing and installation of a magnetic yoke, a rotating shaft, a holding body, a permanent magnet and a protection end plate. The permanent magnet rotor of the motor manufactured through the method disclosed by the invention combines advantages of a surface-mounted rotor and advantages of an embedded rotor, and has the advantages of reasonable structure, small vibration noise, convenient assembly, wide application range and long service life.
Description
Technical field
The present invention relates to rotor method field of manufacturing, particularly relate to a kind of manufacture method of motor permanent magnetic rotor.
Background technology
Along with the development of magneto manufacturing technology and control technology thereof, magneto especially high-power permanent magnet motor has progressively replaced asynchronous machine to be applied to widely in various industrial circle.Rotor is as the critical piece of magneto, and the manufacture, stable operation etc. on motor such as the reasonability of its structural design, the simplicity of technique have important impact.The product structure that the manufacture method of current permanent magnet machine rotor is produced mainly contains surface-mount type and embedded.
The advantage of surface-mounted permanent magnet machine rotor: surface permanent magnet structure has lower magnet and reveals magnetic flux.
The shortcoming that surface-mounted permanent magnet machine rotor exists is: 1) once the factors such as high strength glue because high temperature lost efficacy, permanent magnet comes off from rotor core, causes permanent magnet machine rotor to lose efficacy; 2) permanent magnet come off destroys the stator slot of magneto under the centrifugal action of rotor core high-speed rotary, is prone to accidents.
The advantage of built-in permanent magnetic rotor: permanent magnet is installed fixing reliable, is applicable to High Rotation Speed rotor, and applicability is strong, safe and reliable.
The shortcoming that built-in permanent magnetic rotor exists is: on the one hand, and mounting process is complicated, on the other hand, due to the metal bridge between permanent magnet, has the rotor structure embedding magnet and wastes useful magnetic flux from permanent magnet.
In addition, it is serious all to there is heating in existing permanent magnet machine rotor, noise and shake large problem.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of motor permanent magnetic rotor, it has rational in infrastructure, vibrating noise is little, easy to assembly, advantage applied widely, adopts the present invention effectively can annex the advantage of surface-mount type and embedded rotor, reduces quantity of heat production, extend motor useful life, increase economic efficiency.
Large for solving motor permanent magnetic rotor quantity of heat production in prior art, vibrating noise is large, poor for applicability, useful life is short, the technical problem of unreasonable structure, the manufacture method of a kind of motor permanent magnetic rotor of the present invention, motor permanent magnetic rotor comprises yoke, rotating shaft, holds body, permanent magnet and protective tip
Its manufacture method comprises the following steps:
1) the yoke unit of composition yoke is made, yoke unit circumferentially utilizes stamping machine to stamp out some draw-in grooves, the slot bottom width of draw-in groove is greater than width of rebate, described draw-in groove is distributed in yoke unit circumference, and punching press arc groove bottom draw-in groove, yoke unit center portion's punching press axis hole, and uniform some punchings and some fixing holes on yoke elemental area;
2) yoke is made, yoke unit in step 1 is superimposed as certain thickness yoke according to capacity motor, and on the one hand the punching between adjacent yoke unit is fitting to connection in additive process, on the other hand, the concave part of adjacent yoke unit is welded and fixed;
3) make rotating shaft, the yoke described in step 2 and rotating shaft are closely cooperated;
4) body unit is held in making, hold body unit and comprise interior clamping sheet and wild card contact pin and the brace being connected interior clamping sheet and wild card contact pin, described interior clamping plate shape and described draw-in groove shape similar, described wild card contact pin and brace junction are that arc is connected, and are holding body unit face upper punch pressure fixing hole;
5) make and hold body, body unit surface-coated insulating barrier will be held in step 4, will hold according to yoke thickness and after body unit is superimposed to same thickness, utilize securing member to be fixed connection;
6) draw-in groove that body is embedded in yoke in step 2 will be held in step 5, make both compact siro spinning technology;
7) make permanent magnet, make this permanent magnet just can be full of the adjacent region of holding body and yoke surfaces and surrounding, permanent magnet is embedded in and adjacently holds between body;
8) protective tip is made, axis hole is offered at protective tip central part, with yoke unit and hold fixing hole corresponding position on body unit and offer identical fixing hole, protective tip is installed in yoke two ends, and by securing member, yoke and protective tip is fastenedly connected.
Further, the manufacture method of a kind of motor permanent magnetic rotor of the present invention, wherein: punching described in step 1 forms teeth groove at an end face of yoke unit, and other end forms slide calliper rule, and this punching is for reinforcing the connection of adjacent yoke unit.
Further, the manufacture method of a kind of motor permanent magnetic rotor of the present invention, wherein: the body unit of holding in step 4 is that nonmagnetic substance manufacture forms.
Further, the manufacture method of a kind of motor permanent magnetic rotor of the present invention, wherein: the protective tip in step 8 is that nonmagnetic substance manufacture forms.
The manufacture method of motor permanent magnetic rotor of the present invention compared with prior art has the following advantages: the present invention changes direct way permanent magnet being embedded yoke in the past, indirectly adopt and hold body embedding yoke, and to hold body be that the body unit of holding being coated with insulating barrier is formed by stacking, according to good conductor, (holding body itself is nonmagnetic material, , he is generally good conductor) meeting generation current in the strong alternating electric field of radial direction, can generate heat, the direction of this current flowing is axial, in order to nip off this electric current and sheet is held between body and insulated, avoid the generation of superheating phenomenon, then permanent magnet is arranged on yoke surfaces according to surface-mount type, and permanent magnet with hold body and coordinate to be arc line shaped and be connected, reduce the slot effect of motor permanent magnetic rotor, make the rotor operation that manufactured by the method more steady, noise is less, in addition, this structure makes motor permanent magnetic rotor of the present invention possess the advantage of surface-mounted permanent magnet machine rotor on the one hand, and namely surface permanent magnet structure has lower magnet leakage magnetic flux, on the other hand, motor permanent magnetic rotor of the present invention has possessed the advantage of built-in permanent magnetic rotor, and namely permanent magnet is installed fixing reliable, and be applicable to High Rotation Speed rotor, applicability is strong, safe and reliable.
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from the accompanying drawing below combining to the description of embodiment.
Accompanying drawing explanation
Fig. 1 is the yoke cellular construction schematic diagram that motor permanent magnetic rotor manufacture method of the present invention manufactures;
Fig. 2 is the magnetic yoke structure schematic diagram that motor permanent magnetic rotor manufacture method of the present invention manufactures;
Fig. 3 is the pivot structure schematic diagram that motor permanent magnetic rotor manufacture method of the present invention manufactures;
Fig. 4 be motor permanent magnetic rotor manufacture method of the present invention manufacture hold body unit structural representation;
Fig. 5 be motor permanent magnetic rotor manufacture method of the present invention manufacture hold body structure schematic diagram;
Fig. 6 is yoke, the rotating shaft of motor permanent magnetic rotor manufacture method of the present invention manufacture and holds body assembly structure schematic diagram;
Fig. 7 is the magnet structure schematic diagram that motor permanent magnetic rotor manufacture method of the present invention manufactures;
Fig. 8 is the set of permanent magnets assembling structure schematic diagram that motor permanent magnetic rotor manufacture method of the present invention manufactures;
Fig. 9 is the protective tip structural representation that motor permanent magnetic rotor manufacture method of the present invention manufactures;
Figure 10 is the motor permanent magnet rotor structure schematic diagram that motor permanent magnetic rotor manufacture method of the present invention manufactures.
Wherein: 1, yoke; 1a, yoke unit; 100, draw-in groove; 101, punching; 2, rotating shaft; 3, body is held; 3a, hold body unit; 300, interior clamping sheet; 301, wild card contact pin; 302, brace; 4, permanent magnet; 5, protective tip.
Embodiment
Below in conjunction with accompanying drawing, explanation is explained in detail to structure of the present invention.
As shown in Figures 1 to 10, the manufacture method of a kind of motor permanent magnetic rotor of the present invention, motor permanent magnetic rotor comprises yoke 1, rotating shaft 2, holds body 3, permanent magnet 4 and protective tip 5,
Its manufacture method comprises the following steps:
1) the yoke unit 1a of composition yoke 1 is made, yoke unit 1a circumferentially utilizes stamping machine to stamp out some draw-in grooves 100, the slot bottom width of draw-in groove 100 is greater than width of rebate, draw-in groove 100 is distributed in yoke unit 1a circumference, and the bottom punching press arc groove of draw-in groove 100, yoke unit 1a central part punching press axis hole, and uniform some punchings 101 and some fixing holes on yoke elemental area;
2) yoke 1 is made, yoke unit 1a in step 1 is superimposed as certain thickness yoke 1 according to capacity motor, and on the one hand the punching 101 between adjacent yoke unit 1a is fitting to connection in additive process, on the other hand, the concave part of adjacent yoke unit 1a is welded and fixed;
3) make rotating shaft 2, the yoke 1 in step 2 is closely cooperated with rotating shaft 2;
4) body unit 3a is held in making, hold body unit 3a and comprise interior clamping sheet 300 and wild card contact pin 301 and the brace 302 being connected interior clamping sheet 300 and wild card contact pin 301, interior clamping sheet 300 shape and draw-in groove 100 shape similar, wild card contact pin 301 and brace 302 junction are that arc is connected, and are holding body unit 3a face upper punch pressure fixing hole;
5) make and hold body 3, body unit 3a surface-coated insulating barrier will be held in step 4, will hold according to the thickness of yoke 1 and after body unit 3a is superimposed to same thickness, utilize securing member to be fixed connection;
6) draw-in groove 100 that body 3 is embedded in yoke 1 in step 2 will be held in step 5, make both compact siro spinning technology;
7) make permanent magnet 4, make this permanent magnet 4 just can be full of the adjacent region of holding body 3 and yoke 1 surface and surrounding, permanent magnet 4 is embedded in and adjacently holds between body 3;
8) protective tip 5 is made, axis hole is offered at protective tip 5 central part, with yoke unit 1a and hold fixing hole corresponding position on body unit 3a and offer identical fixing hole, protective tip 5 is installed in yoke 1 two ends, and by securing member, yoke 1 and protective tip 5 is fastenedly connected.
Structural principle of the present invention and beneficial effect are: the present invention changes direct way permanent magnet 4 being embedded yoke 1 in the past, indirectly employing is held body 3 and is embedded yoke 1, and hold body 3 for the body unit 3a that holds being coated with insulating barrier and be formed by stacking, according to good conductor, (holding body itself is nonmagnetic material, , he is generally good conductor) meeting generation current in the strong alternating electric field of radial direction, can generate heat, the direction of this current flowing is axial, in order to nip off this electric current and sheet is held between body unit 3a and insulated, body unit 3a insulation will be held come, thus avoid the generation of superheating phenomenon, then permanent magnet 4 is arranged on yoke 1 surface according to surface-mount type, and permanent magnet 4 with hold body 3 cooperation place and be arc line shaped and be connected, reduce the slot effect of motor permanent magnetic rotor, make the rotor operation that manufactured by the method more steady, noise is less, in addition, this structure makes motor permanent magnetic rotor of the present invention possess the advantage of surface-mounted permanent magnet machine rotor on the one hand, and namely surface permanent magnet structure has lower magnet leakage magnetic flux, on the other hand, motor permanent magnetic rotor of the present invention has possessed the advantage of built-in permanent magnetic rotor, and namely permanent magnet is installed fixing reliable, and be applicable to High Rotation Speed rotor, applicability is strong, safe and reliable.
Concrete, in step 1, punching 101 forms teeth groove at an end face of yoke unit 1a, and other end forms slide calliper rule, and this punching 101 is for reinforcing the connection of adjacent yoke unit 1a.
Adopt the connection of the assembled chimeric reinforcing of the structure of punching 101 adjacent yoke unit 1a in the present embodiment, structure is simple, connects reliable and practical.
As further prioritization scheme, the body unit 3a that holds in step 4 is that nonmagnetic substance manufacture forms.
Meanwhile, the protective tip 5 in step 8 forms for nonmagnetic substance manufacture.
Nonmagnetic substance does not inhale magnetic, and magnetic inhaled by magnetic material; If holding body 3 is magnetic materials, this permanent magnet 4 is in magnet short-cut path state (permanent magnet 4 is in short-circuit condition because holding the existence of body 3), if holding body 3 is nonmagnetic substances, this permanent magnet 4 is not be in magnet short-cut path state, and it does not affect the magnetic circuit of permanent magnet 4; In like manner, if protective tip 5 is ferromagnetic, so it just has magnet short-cut path phenomenon.
Above embodiment is only the description carried out the preferred embodiment of the present invention; the restriction not request protection range of the present invention carried out; under the prerequisite not departing from design principle of the present invention and spirit; the various forms of distortion that this area engineers and technicians make according to technical scheme of the present invention, all should fall in protection range that claims of the present invention determine.
Claims (4)
1. a manufacture method for motor permanent magnetic rotor, is characterized in that: described motor permanent magnetic rotor comprises yoke, rotating shaft, holds body, permanent magnet and protective tip;
Its manufacture method comprises the following steps:
1) the yoke unit of composition yoke is made, yoke unit circumferentially utilizes stamping machine to stamp out some draw-in grooves, the slot bottom width of draw-in groove is greater than width of rebate, described draw-in groove is distributed in yoke unit circumference, and punching press arc groove bottom draw-in groove, yoke unit center portion's punching press axis hole, and uniform some punchings and some fixing holes on yoke elemental area;
2) yoke is made, yoke unit in step 1 is superimposed as certain thickness yoke according to capacity motor, and on the one hand the punching between adjacent yoke unit is fitting to connection in additive process, on the other hand, the concave part of adjacent yoke unit is welded and fixed;
3) make rotating shaft, the yoke described in step 2 and rotating shaft are closely cooperated;
4) what make that composition holds body holds body unit, hold body unit and comprise interior clamping sheet and wild card contact pin and the brace being connected interior clamping sheet and wild card contact pin, described interior clamping plate shape and described draw-in groove shape similar, described wild card contact pin and brace junction are that arc is connected, and are holding body unit face upper punch pressure fixing hole;
5) make and hold body, body unit surface-coated insulating barrier will be held in step 4, will hold according to yoke thickness and after body unit is superimposed to same thickness, utilize securing member to be fixed connection;
6) draw-in groove that body is embedded in yoke in step 2 will be held in step 5, make both compact siro spinning technology;
7) make permanent magnet, make this permanent magnet just can be full of the adjacent region of holding body and yoke surfaces and surrounding, permanent magnet is embedded in and adjacently holds between body;
8) protective tip is made, axis hole is offered at protective tip central part, with yoke unit and hold fixing hole corresponding position on body unit and offer identical fixing hole, protective tip is installed in yoke two ends, and by securing member, yoke and protective tip is fastenedly connected.
2. the manufacture method of motor permanent magnetic rotor according to claim 1, is characterized in that: punching described in step 1 forms teeth groove at an end face of yoke unit, and other end forms slide calliper rule, and this punching is for reinforcing the connection of adjacent yoke unit.
3. the manufacture method of motor permanent magnetic rotor according to claim 1, is characterized in that: the body unit of holding in step 4 is that nonmagnetic substance manufacture forms.
4. the manufacture method of motor permanent magnetic rotor according to claim 1, is characterized in that: the protective tip in step 8 is that nonmagnetic substance manufacture forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510508645.0A CN105006925B (en) | 2015-08-19 | 2015-08-19 | A kind of manufacture method of motor permanent magnetic rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510508645.0A CN105006925B (en) | 2015-08-19 | 2015-08-19 | A kind of manufacture method of motor permanent magnetic rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105006925A true CN105006925A (en) | 2015-10-28 |
| CN105006925B CN105006925B (en) | 2017-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510508645.0A Active CN105006925B (en) | 2015-08-19 | 2015-08-19 | A kind of manufacture method of motor permanent magnetic rotor |
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| Country | Link |
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| CN (1) | CN105006925B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647055A (en) * | 2012-04-25 | 2012-08-22 | 东元总合科技（杭州）有限公司 | Assembly method of large-power permanent magnetic motor rotor |
| US20130106207A1 (en) * | 2011-10-31 | 2013-05-02 | Wei Song | Permanent magnet rotors and methods of assembling the same |
| CN204012987U (en) * | 2014-06-26 | 2014-12-10 | 日立电梯电机（广州）有限公司 | A kind of internal rotor permanent-magnetic body fixed structure and permagnetic synchronous motor |
-
2015
- 2015-08-19 CN CN201510508645.0A patent/CN105006925B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130106207A1 (en) * | 2011-10-31 | 2013-05-02 | Wei Song | Permanent magnet rotors and methods of assembling the same |
| CN102647055A (en) * | 2012-04-25 | 2012-08-22 | 东元总合科技（杭州）有限公司 | Assembly method of large-power permanent magnetic motor rotor |
| CN204012987U (en) * | 2014-06-26 | 2014-12-10 | 日立电梯电机（广州）有限公司 | A kind of internal rotor permanent-magnetic body fixed structure and permagnetic synchronous motor |
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| Publication number | Publication date |
|---|---|
| CN105006925B (en) | 2017-11-24 |
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Effective date of registration: 20220624 Address after: 075700 No. 6, jingdai Road, Yu County Economic Development Zone, Zhangjiakou City, Hebei Province Patentee after: Hebei Zhangqing Technology Co.,Ltd. Address before: 157000 Room 401, 4th floor, Baofeng office building, the intersection of xiyitiao road and Aimin street, Mudanjiang City, Heilongjiang Province Patentee before: Li Mingshan |