CN203674830U - Spliced brushless motor rotor structure with built-in tangentially magnetized magnetic steel and motor - Google Patents
Spliced brushless motor rotor structure with built-in tangentially magnetized magnetic steel and motor Download PDFInfo
- Publication number
- CN203674830U CN203674830U CN201320844109.4U CN201320844109U CN203674830U CN 203674830 U CN203674830 U CN 203674830U CN 201320844109 U CN201320844109 U CN 201320844109U CN 203674830 U CN203674830 U CN 203674830U
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- rotor
- rotor punching
- brushless motor
- bracing frame
- magnet steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 50
- 239000010959 steel Substances 0.000 title claims abstract description 50
- 238000004080 punching Methods 0.000 claims abstract description 65
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 8
- 238000009827 uniform distribution Methods 0.000 claims description 5
- 230000004907 flux Effects 0.000 abstract description 6
- 230000005347 demagnetization Effects 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 238000007885 magnetic separation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000703 high-speed centrifugation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model provides a spliced brushless motor rotor structure with built-in tangentially magnetized magnetic steel, which comprises rotor punching sheet assemblies, a supporting bracket, magnetic steel, rivets, baffle plates and a rotating shaft, wherein the rotor punching sheet assemblies are mutually independent, the magnetic steel is tangentially magnetized inside the brushless motor rotor structure; the rotor punching sheet assembly is mainly formed by interpenetrating and laminating a plurality of rotor punching sheets through the rivet, the rotor punching sheets are arranged on the supporting bracket in a spliced mode under the action of the rivets, and the rotor punching sheet is provided with a flange; two sides of the magnetic steel are provided with the baffle plates respectively, and the rotating shaft is arranged in a center hole of the supporting bracket. The utility model further provides a corresponding motor. The spliced brushless motor rotor structure with the built-in tangentially magnetized magnetic steel can effectively reduce rotor magnetic flux leakage, improves the motor performance, and is firm in matching, and the magnetic steel cannot be thrown away and does not face directly to air gaps, thereby effectively improving the demagnetization resisting ability. In addition, a traditional narrow magnetic separation bridge is removed, and the manufacturability of the motor is obviously improved.
Description
Technical field
The utility model relates to motor rotor construction, relates in particular to a kind of motor rotor construction and motor of brushless, permanently Interior permanent magnet cutting orientation magnetizing.
Background technology
The structure that traditional rotor structure of brushless motor adopts Surface Mount magnet steel or built-in radial to magnetize, in actual applications, under limited motor volume, increase the rated output power of motor, the radial structure that magnetizes is subject to volume restrictions enough magnetic fluxs can not be provided, and cutting orientation magnetizing can be realized two magnet steel parallel connections magnetic flux is provided, obviously improve air-gap flux, motor rated output power is increased, but cutting orientation magnetizing is narrower every magnetic bridge size, be difficult for processing, production cost is more expensive, and the existence every magnetic bridge can cause leakage field phenomenon, motor performance is reduced.
Utility model content
For defect of the prior art, the purpose of this utility model is to provide a kind of realistic production and processing and can effectively reduces motor flux leakage, improves the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of a kind of assembled piece type of motor performance.
The rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of the assembled piece type that the utility model provides, because bracing frame adopts non-magnet material, and rotor assembly is separate, can effectively reduce rotor leakage, improves motor performance.Between rotor punching and bracing frame, adopt dovetail groove to coordinate in addition, coordinate firmly, rotor punching is provided with rib, makes rotor in the situation of running up, and magnet steel also can not throw away, and magnet steel, not just to air gap, has effectively improved anti-demagnetization capability.The utility model has been removed traditional narrow limit every magnetic bridge, has obviously improved the manufacturability of motor.
Particularly, the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of the assembled piece type providing according to the utility model, comprising: rotor punching assembly, bracing frame 2, magnet steel 3, rivet 4, dividing plate 5 and rotating shaft 6;
Rotor punching assembly is mainly interted and is overrided to form by rivet 4 by multiple rotor punchings 1, rotor punching 1 is arranged on bracing frame 2 in the mode of splicing under the effect of the rivet 4 matching with the location hole of dividing plate 5 by the location hole of dividing plate 5, on rotor punching 1, is provided with rib;
Be respectively arranged with dividing plate 5 on the both sides of magnet steel 3, dividing plate 5 adopts non-magnet material to make, and rotor punching assembly is connected location with dividing plate 5 between the dividing plate 5 on magnet steel 3 both sides and by rivet 4; Rotating shaft 6 is arranged in the centre bore of bracing frame 2.
Preferably, bracing frame 2 comprises dovetail groove, and rotor punching 1 comprises the location structure matching with dovetail groove.
Preferably, each pole field of described rotor structure of brushless motor is provided by two magnet steel 3 parallel connections.
Preferably, rotor punching assembly even circumferential is assembled in the multiple magnetic shoe grooves that form circumference uniform distribution on bracing frame 2, and the mode that each magnet steel 3 replaces according to the N utmost point, S utmost point position is inserted in corresponding magnetic shoe groove successively.
Preferably, magnet steel 3 be shaped as cuboid.
The assembly method of the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of the above-mentioned assembled piece type providing according to the utility model, comprises the steps:
Step 1: first rotor punching 1 is laminated into multiple rotor punching assemblies by rivet 4;
Step 2: rotor punching assembly circumference uniform distribution is pressed into the dovetail groove of bracing frame 2, rotor punching assembly is arranged on bracing frame 2, rotor punching assembly even circumferential is assembled in the multiple magnetic shoe grooves that form circumference uniform distribution on bracing frame 2;
Step 3: the one side in the both sides of rotor punching assembly is pressed into dividing plate 5 to bracing frame 2;
Step 4: the mode that each magnet steel 3 is replaced according to the N utmost point, S utmost point position is inserted in the magnetic shoe groove forming after the combination of rotor punching assembly successively, and magnet steel (3) is carried out to surface coating;
Step 5: the another side in the both sides of rotor punching assembly is pressed into dividing plate 5 to bracing frame 2;
Step 6: the dividing plate 5 that makes rivet 4 intert into rotor punching assembly and rotor punching assembly both sides, rivet 4 end faces of riveting tightly, make rotor punching 1, bracing frame 2, magnet steel 3 and dividing plate 5 install and be positioned at together under rivet 4 effects;
Step 7: the centre bore that rotating shaft 6 is pressed into bracing frame 2;
Step 8: carry out duplicate removal dynamic balance calibration on dividing plate 5, finally obtain a motor rotor component.
The brshless DC motor providing according to the utility model, described brshless DC motor comprises the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of above-mentioned assembled piece type.
Compared with prior art, the utlity model has following beneficial effect:
(1) rotor punching is provided with the location structure matching with dovetail groove, rotor punching is provided with the location hole combining with rivet, bracing frame and dividing plate adopt non-magnet material, this structure makes between each rotor punching assembly separate, remove every magnetic bridge structure, effectively reduce motor flux leakage, improved magnet steel utilance, improved motor performance.
(2) rotor punching is provided with rib, and two end caps of rotor are provided with two non-magnetic dividing plates, have effectively improved the constant intensity of magnet steel, applicable to the motor of High Rotation Speed.
(3) processing technology of each parts is simple, and assembling process is simple, and the end cap at two ends can be proofreaied and correct for balance duplicate removal in addition, realization batch production that can less expensive.
Accompanying drawing explanation
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present utility model will become:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the AA of Fig. 1 is to cross-sectional view;
Fig. 3 is explosive view of the present utility model.
In figure:
1 is rotor punching;
2 is non-magnet material bracing frame;
3 is magnet steel;
4 is rivet;
5 is dividing plate;
6 is rotating shaft.
Embodiment
Below in conjunction with specific embodiment, the utility model is elaborated.Following examples will contribute to those skilled in the art further to understand the utility model, but not limit in any form the utility model.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, can also make some distortion and improvement.These all belong to protection range of the present utility model.
Electric machine structure of the present utility model, because each pole field of rotor is provided by two magnet steel parallel connections, can obtain very high air-gap field intensity, under fixing motor volume, can reach higher power of motor; Magnet steel is fixed by rotor rib, and mechanical strength is high, can adapt to pot motor; Adopt novel assembling mode can avoid, every the narrow shortcoming that causes the bad realization of Sheet Metal Forming Technology of magnetic bridge, being convenient to realize large batch of low cost fabrication.
Particularly, as shown in Figure 1 and Figure 2, the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type described in the utility model, comprises rotor punching 1, bracing frame 2, magnet steel 3, rivet 4, dividing plate 5 and rotating shaft 6.Wherein, rotor punching 1 is silicon steel sheet, and bracing frame 2 and dividing plate 5 adopt non-magnet material (such as aluminium alloy, stainless steel, engineering plastics etc.) to make, and magnet steel 3 adopts NdFeB material to make, rivet 4 adopts mild steel permeability magnetic material to make, and rotating shaft 6 adopts mild steel material to make.
In preference, bracing frame 2 is provided with dovetail groove location structure, and as shown in Figure 2, dovetail groove quantity and motor pole number are equal, and corresponding rotor punching 1 is also provided with location structure and matches with bracing frame 2.Magnet steel 3 is built in internal rotor and cutting orientation magnetizing, magnet steel 3 be shaped as cuboid; Rotor punching 1 laminates into a rotor punching assembly under rivet 4 effects, and rotor punching assembly is separate, and magnet steel 3 is alternately distributed with rotor punching assembly even circumferential; Bracing frame 2 and dividing plate 5 adopt non-magnet material and are provided with location structure, on dividing plate 5, have location hole, rotor punching 1 is fixed on non-magnet material bracing frame 2 in the mode of splicing under the effect of rivet 4 by the location hole of non-magnet material bracing frame 2 and dividing plate 5; Magnet steel 3 can prevent from axially throwing away under the effect of two side partitions 5; On rotor punching 1, design rib, can prevent that magnet steel 3 from flying out under the effect of high speed centrifugation power.
The assembling process of the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of the assembled piece type that the utility model provides is as follows:
Step 1: first rotor punching 1 is laminated into multiple rotor punching assemblies by rivet 4;
Step 2: rotor punching assembly circumference uniform distribution is pressed into the dovetail groove of bracing frame 2, rotor punching assembly is fixed on bracing frame 2;
Step 3: the one side in the both sides of magnet steel 3 (being the both sides of rotor punching assembly) is pressed into dividing plate 5 to bracing frame 2;
Step 4: as shown in Figure 2, the mode that each magnet steel 3 is replaced according to the N utmost point, S utmost point position is inserted in the magnetic shoe groove forming after the combination of rotor punching assembly successively, week upwards the antipode between adjacent magnet steel 3 be the N utmost point or be the S utmost point, and magnet steel 3 is carried out to surface coating;
Step 5: the another side in the both sides of magnet steel 3 (being the both sides of rotor punching assembly) is pressed into dividing plate 5 to bracing frame 2;
Step 6: the dividing plate 5 that makes rivet 4 intert into rotor punching assembly and rotor punching assembly both sides, rivet 4 end faces of riveting tightly are fixed together rotor punching 1, bracing frame 2, magnet steel 3 and dividing plate 5 under rivet 4 effects;
Step 7: the centre bore that rotating shaft 6 is pressed into bracing frame 2;
Step 8: carry out duplicate removal dynamic balance calibration on dividing plate 5, finally obtain a motor rotor component.
Above specific embodiment of the utility model is described.It will be appreciated that, the utility model is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (6)
1. a rotor structure of brushless motor for the Interior permanent magnet cutting orientation magnetizing of assembled piece type, is characterized in that, comprising: rotor punching assembly, bracing frame (2), magnet steel (3), rivet (4), dividing plate (5) and rotating shaft (6);
Bracing frame (2) adopts non-magnet material to make, and is provided with multiple rotor punching assemblies and magnet steel (3) on bracing frame (2), and rotor punching assembly and magnet steel (3) are upwards evenly alternately distributed bracing frame (2) in week; Separate between rotor punching assembly, magnet steel (3) is at the inside of described rotor structure of brushless motor cutting orientation magnetizing;
Rotor punching assembly is mainly interted and is overrided to form by rivet (4) by multiple rotor punchings (1), it is upper that rotor punching (1) is arranged on bracing frame (2) in the mode of splicing by the location hole of dividing plate (5) under the effect of the rivet (4) matching with the location hole of dividing plate (5), and rotor punching is provided with rib on (1);
Be respectively arranged with dividing plate (5) on the both sides of magnet steel (3), dividing plate (5) adopts non-magnet material to make, and rotor punching assembly is positioned between the dividing plate (5) on magnet steel (3) both sides and by rivet (4) and is connected location with dividing plate (5); Rotating shaft (6) is arranged in the centre bore of bracing frame (2).
2. the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type according to claim 1, is characterized in that, bracing frame (2) comprises dovetail groove, and rotor punching (1) comprises the location structure matching with dovetail groove.
3. the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type according to claim 1, is characterized in that, each pole field of described rotor structure of brushless motor is provided by two magnet steel (3) parallel connection.
4. the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type according to claim 3, it is characterized in that, rotor punching assembly even circumferential is assembled in the upper multiple magnetic shoe grooves that form circumference uniform distribution of bracing frame (2), and the mode that each magnet steel (3) replaces according to the N utmost point, S utmost point position is inserted in corresponding magnetic shoe groove successively.
5. the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type according to claim 1, is characterized in that, magnet steel (3) be shaped as cuboid.
6. a brshless DC motor, is characterized in that, described brshless DC motor comprises the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of the assembled piece type described in any one in claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320844109.4U CN203674830U (en) | 2013-12-19 | 2013-12-19 | Spliced brushless motor rotor structure with built-in tangentially magnetized magnetic steel and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320844109.4U CN203674830U (en) | 2013-12-19 | 2013-12-19 | Spliced brushless motor rotor structure with built-in tangentially magnetized magnetic steel and motor |
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| Publication Number | Publication Date |
|---|---|
| CN203674830U true CN203674830U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320844109.4U Expired - Lifetime CN203674830U (en) | 2013-12-19 | 2013-12-19 | Spliced brushless motor rotor structure with built-in tangentially magnetized magnetic steel and motor |
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| CN (1) | CN203674830U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730969A (en) * | 2013-12-19 | 2014-04-16 | 新安乃达驱动技术(上海)有限公司 | Spliced block type tangential magnetizing brushless motor rotor structure with built-in magnetic steel and method |
| CN108631523A (en) * | 2018-07-27 | 2018-10-09 | 宣城坚腾智能传动设备有限公司 | A kind of outer rotor brushless motor bonding magnetic steel tooling |
| WO2019029109A1 (en) * | 2017-08-09 | 2019-02-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Tangential motor, tangential motor rotor and rotor iron core thereof |
| CN109510354A (en) * | 2018-12-28 | 2019-03-22 | 浙江荣捷特科技有限公司 | A kind of nonmetallic support construction of built-in magnet steel and sterlin refrigerator and generator |
| US11639592B2 (en) * | 2016-03-03 | 2023-05-02 | Husqvarna Ab | Spacer structure for a saw disc assembly and a saw disc assembly |
-
2013
- 2013-12-19 CN CN201320844109.4U patent/CN203674830U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730969A (en) * | 2013-12-19 | 2014-04-16 | 新安乃达驱动技术(上海)有限公司 | Spliced block type tangential magnetizing brushless motor rotor structure with built-in magnetic steel and method |
| CN103730969B (en) * | 2013-12-19 | 2016-04-06 | 新安乃达驱动技术(上海)有限公司 | The assembly method of the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type |
| US11639592B2 (en) * | 2016-03-03 | 2023-05-02 | Husqvarna Ab | Spacer structure for a saw disc assembly and a saw disc assembly |
| WO2019029109A1 (en) * | 2017-08-09 | 2019-02-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Tangential motor, tangential motor rotor and rotor iron core thereof |
| CN108631523A (en) * | 2018-07-27 | 2018-10-09 | 宣城坚腾智能传动设备有限公司 | A kind of outer rotor brushless motor bonding magnetic steel tooling |
| CN109510354A (en) * | 2018-12-28 | 2019-03-22 | 浙江荣捷特科技有限公司 | A kind of nonmetallic support construction of built-in magnet steel and sterlin refrigerator and generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201108 Minhang District City, Shanghai Road, No. 2060, 1-3 floor, 5 Patentee after: NEW ANANDA DRIVE TECHNIQUES(SHANGHAI) Co.,Ltd. Address before: 201108 Minhang District City, Shanghai Road, No. 2060, 1-3 floor, 5 Patentee before: NEW ANANDA DRIVE TECHNIQUES(SHANGHAI) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 201100 floor 1-2, block a, 19 Lane 133, Guangzhong Road, Minhang District, Shanghai Patentee after: Aneida drive technology (Shanghai) Co.,Ltd. Address before: 201108, Minhang District, Shanghai Garden Road No. 5, 2060, 1-3 Patentee before: NEW ANANDA DRIVE TECHNIQUES(SHANGHAI) Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
|
| CX01 | Expiry of patent term |