CN107689697A - Brshless DC motor - Google Patents
Brshless DC motor Download PDFInfo
- Publication number
- CN107689697A CN107689697A CN201710910587.3A CN201710910587A CN107689697A CN 107689697 A CN107689697 A CN 107689697A CN 201710910587 A CN201710910587 A CN 201710910587A CN 107689697 A CN107689697 A CN 107689697A
- Authority
- CN
- China
- Prior art keywords
- chock
- magnet steel
- shaped
- rotor
- brshless
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 230000000712 assembly Effects 0.000 claims abstract description 45
- 238000000429 assembly Methods 0.000 claims abstract description 45
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims description 17
- 230000001070 adhesive effect Effects 0.000 claims description 17
- 239000000696 magnetic material Substances 0.000 claims 1
- 230000035699 permeability Effects 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
-
- 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 present invention relates to a kind of brshless DC motor, the brshless DC motor includes rotor core and is arranged at intervals at multiple magnet steel on the external peripheral surface of the rotor core along the axial direction of the rotor core;Wherein, multiple rotor pseudodonts are distributed with the external peripheral surface of the rotor core, a set of cleat assemblies are set on each rotor pseudodont, each magnet steel is arranged between two sets of adjacent cleat assemblies.Brushless DC motor structure proposed by the present invention is simple, cost is low, magnet steel is solid and reliable, motor performance is good.
Description
Technical field
The present invention relates to electrical connection technical field, more particularly to a kind of brshless DC motor.
Background technology
One of traditional fixed installation mode of inner-rotor brushless DC motor rotor upper magnetic steel is direct using adhesive
The outer surface of rotor core is pasted onto, magnet steel is evenly distributed in rotor core outer surface, for the higher internal rotor of rotating speed
Motor, also it can increase rotor steel bushing or rotor band in rotor surface, the defects of this fixed installation mode of magnet steel is present is:
This directly gluing mounting means is unfavorable for magnet steel positioning, in addition, the presence of rotor steel bushing can increase the loss of motor, and is turning
The technique that sublist face is wrapped with band is also extremely complex, and having twined will also be post-processed after band coats adhesive, it is necessary to by rotor
The adhesive of excess surface is removed, and is also needed the as far as possible smooth of rotor surface car with lathe, and to be ensured between rotor
Air gap is consistent with design air gap, and as caused heat during energy converting between mechanical and motor are transported at a high speed during due to operation
Caused heat in turning, not only reduces the impact resistance of magnet steel, and make adhesive that magnet steel can usually be occurred by thermal failure
Obscission.
Another mounting means of traditional inner-rotor brushless DC motor rotor upper magnetic steel is installed on rotor pseudodont
Magnet steel fixed support, as the first mounting means, magnet steel be evenly distributed on rotor core it is cylindrical on, unlike rotor iron
Rotor pseudodont is designed between heart pole and pole, by rotor pseudodont and magnet steel support Design into the structure type of tongue and groove, is easy to magnetic
Steel bracket is enclosed on rotor pseudodont, after between magnet steel two magnet steel supports of insertion, chock is inserted, for fixing magnet steel.This magnetic
Steel, which is fixedly mounted mode the defects of existing, is:The parts needed are too many, and the manufacturing procedure of magnet steel support is complicated, installation procedure
More, so for motor complete machine, manufacturing cost is big, takes time and effort.
In view of above-mentioned technical problem, it is necessary to propose that one kind is simple in construction, cost is low, magnet steel is solid and reliable, motor
The solution of excellent performance.
The content of the invention
The present invention proposes a kind of brshless DC motor, it is intended to simplify structure, reduce cost, reduce motor eddy-current loss and
Leakage field between magnetic pole, improve motor performance.
To achieve the above object, the present invention is achieved in that the present invention provides a kind of brshless DC motor, including rotor
Iron core and it is arranged at intervals at multiple magnet steel on the external peripheral surface of the rotor core along the axial direction of the rotor core;
Wherein, multiple rotor pseudodonts are distributed with the external peripheral surface of the rotor core, a set of wedge is set on each rotor pseudodont
Sub-component, each magnet steel are arranged between two sets of adjacent cleat assemblies.
The present invention further technical scheme be, the rotor pseudodont be both sides indent T-type structure, the T junction
The bottom of the rotor pseudodont of structure is fixedly connected with the periphery of the rotor core.
The further technical scheme of the present invention is often to cover cleat assemblies to include the first chock of Z-shaped, anti-Z-shaped
The rotor that second chock, the first chock of the Z-shaped and the second chock of anti-Z-shaped are arranged in the T-type structure respectively is false
The both sides of tooth.
The further technical scheme of the present invention is, the cross section of the magnet steel is arc, the two of the magnet steel of the arc
End is provided with step-like structure, and two sets of adjacent cleat assemblies include first set cleat assemblies and second set of cleat assemblies,
The magnet steel is arranged between the first set cleat assemblies and second set of cleat assemblies, and one end of the magnet steel is arranged in institute
The side of the first chock of the Z-shaped in first set cleat assemblies is stated, the other end of the magnet steel is arranged in second set of wedge
The side of second chock of the anti-Z-shaped in sub-component.
The further technical scheme of the present invention is the first chock of the Z-shaped, the second chock difference of anti-Z-shaped
It is Nian Jie using adhesive with the both sides of the rotor pseudodont of the T-type structure.
The further technical scheme of the present invention is one end of the magnet steel and the Z-shaped in the first set cleat assemblies
The side of first chock of type is bonded using adhesive, the other end of the magnet steel and the anti-Z in second set of cleat assemblies
The side of second chock of font is bonded using adhesive.
The further technical scheme of the present invention is, the first chock of the Z-shaped, the second chock of anti-Z-shaped it is outer
Surface and the outer surface of the magnet steel are located at same arcwall face.
The further technical scheme of the present invention is that first chock and the second chock are non-magnet material.
The beneficial effects of the invention are as follows:The present invention passes through in axial direction side of the external peripheral surface along rotor core of rotor core
To the multiple rotor pseudodonts of interval setting, wherein, a set of cleat assemblies are set on each rotor pseudodont, in two sets of adjacent chocks
Magnet steel is set between component, thereby simplify the mounting structure of magnet steel, reduces cost, and magnet steel be more firmly mounted it is reliable,
Motor performance is more preferably.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram for the brshless DC motor that present pre-ferred embodiments propose;
Fig. 2 is rotor core structure schematic diagram in the brshless DC motor that present pre-ferred embodiments propose;
Fig. 3 is the structural representation of chock in the brshless DC motor that present pre-ferred embodiments propose;
Fig. 4 is magnetic steel structure schematic diagram in the brshless DC motor that present pre-ferred embodiments propose.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
At present, the fixed form of brushless DC motor rotor upper magnetic steel is affixed directly to rotor core using adhesive
Outer surface or the mounting magnetic steel fixed support on rotor pseudodont, magnet steel is inserted between two magnet steel supports.Wherein the first is solid
When determining mode due to motor operation with during energy converting between mechanical caused heat and motor run at high speed in caused heat
Amount, not only reduces the impact resistance of magnet steel, and make adhesive that magnet steel obscission can usually be occurred by thermal failure.The
The parts that two kinds of fixed forms need are too many, and the manufacturing procedure of magnet steel support is complicated, and installation procedure is more, so to motor complete machine
For, manufacturing cost is big, takes time and effort.
In view of above-mentioned technical problem, the present invention proposes that a kind of square structure is simple, cost is low, magnet steel is solid and reliable, electric
The brshless DC motor of machine excellent performance.
The present invention primary solutions be:At axial direction interval of the external peripheral surface along rotor core of rotor core
Multiple rotor pseudodonts are set, wherein, a set of cleat assemblies are set on each rotor pseudodont, two sets of adjacent cleat assemblies it
Between magnet steel is set, thereby simplify the mounting structure of magnet steel, reduce cost, and magnet steel is more firmly mounted reliable, motor
Can be more preferably.
Specifically, reference picture 1- Fig. 4, Fig. 1 are the assembling signals for the brshless DC motor that present pre-ferred embodiments propose
Figure;Fig. 2 is rotor core structure schematic diagram in the brshless DC motor that present pre-ferred embodiments propose;Fig. 3 be the present invention compared with
The structural representation of chock in the brshless DC motor that good embodiment proposes;Fig. 4 is the brushless of present pre-ferred embodiments proposition
Magnetic steel structure schematic diagram in direct current generator.
As shown in Figures 1 to 4, present pre-ferred embodiments propose a kind of brshless DC motor, the brshless DC motor bag
Include rotor core 1 and be arranged at intervals at along the axial direction of the rotor core 1 on the external peripheral surface of the rotor core 1
Multiple magnet steel 4;Wherein, multiple rotor pseudodonts 2 are distributed with the external peripheral surface of the rotor core 1, each rotor pseudodont 2
Upper to set a set of cleat assemblies 3, each magnet steel 4 is arranged between two sets of adjacent cleat assemblies 3.
Thus, relative to prior art, the mounting structure of magnet steel 4 is not only simplify, cost is reduced and reduces motor
Eddy-current loss and magnetic pole between leakage field, so as to improve motor performance.
As a kind of embodiment, the rotor pseudodont 2 is the T-type structure of both sides indent, and the rotor of the T-type structure is false
The bottom of tooth 2 is fixedly connected with the periphery of the rotor core 1.
As a kind of embodiment, often covering cleat assemblies 3 includes the first chock 301, the second wedge of anti-Z-shaped of Z-shaped
Son 302, the first chock 301 of the Z-shaped and the second chock 302 of anti-Z-shaped are arranged in the rotor of the T-type structure respectively
The both sides of pseudodont 2.
As a kind of embodiment, the cross section of the magnet steel 4 is arc, and the magnet steel 4 of the arc is provided at both ends with
Step-like structure, two sets of adjacent cleat assemblies 3 include first set cleat assemblies 3 and second set of cleat assemblies 3, the magnetic
Steel 4 is arranged between the first set cleat assemblies 3 and second set of cleat assemblies 3, and one end of the magnet steel 4 be arranged in it is described
The side of first chock 301 of the Z-shaped in first set cleat assemblies 3, the other end of the magnet steel 4 are arranged in described second set
The side of second chock 302 of the anti-Z-shaped in cleat assemblies 3.
As a kind of embodiment, the first chock 301 of the Z-shaped, the second chock 302 of anti-Z-shaped respectively with institute
The both sides for stating the rotor pseudodont 2 of T-type structure are bonded using adhesive.
As a kind of embodiment, one end of the magnet steel 4 and first of the Z-shaped in the first set cleat assemblies 3
The side of chock 301 is bonded using adhesive, the other end of the magnet steel 4 and the anti-Z-shaped in second set of cleat assemblies 3
The second chock 302 side using adhesive be bonded.
As a kind of embodiment, the first chock 301 of the Z-shaped, the outer surface of the second chock 302 of anti-Z-shaped
It is located at same arcwall face with the outer surface of the magnet steel 4.
Understanding can be used, due to the outer surface of the first chock 301 of the Z-shaped, the second chock 302 of anti-Z-shaped
It is located at same arcwall face with the outer surface of the magnet steel 4, therefore together constitutes the rotor outer circle of no notch.
As a kind of embodiment, the chock 302 of the first chock 301 and second is non-magnet material.
Because the chock 302 of the first chock 301 and second is non-magnet material, reduced thus relative to prior art
Leakage field between magnetic pole, improve the performance of motor.
The installation instructions for the brshless DC motor that the present embodiment proposes are as follows:
First by the first chock 301 of the Z-shaped of first set cleat assemblies 3, the second chock 302 of anti-Z-shaped, second set
The face that first chock 301 of the Z-shaped of cleat assemblies 3, the second chock 302 of anti-Z-shaped are in contact with rotor pseudodont 2 applies gluing
Stick, and be installed on the rotor pseudodont 2 of T-type structure;Then first set cleat assemblies 3 anti-Z-shaped the second wedge
The face coated with adhesive that first chock 301 of the Z-shaped of sub 302, second sets of cleat assemblies 3 is in contact with magnet steel 4, in magnet steel 4
With the phase of the first chock 301 of the Z-shaped of second 302, second sets of cleat assemblies 3 of chock of the anti-Z-shaped of first set cleat assemblies 3
The face coated with adhesive of contact, magnet steel 4 is finally inserted to the second chock 302, second of the anti-Z-shaped of first set cleat assemblies 3
Between the first chock 301 for covering the Z-shaped of cleat assemblies 3.
The advantages of brshless DC motor proposed by the present invention is:By the way of magnet steel is engaged with chock tongue and groove, increase
Big stressed magnetic steel area, it is more firm that magnet steel is fixed, and can largely reduce windage loss;Because chock is
Non-magnet material, the leakage field between magnetic pole is largely reduced, ensure that motor performance;It is convenient that magnet steel is placed, and manufactures
Cost is low.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, every utilization
Equivalent structure or the flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (8)
- A kind of 1. brshless DC motor, it is characterised in that:Axial direction interval including rotor core and along the rotor core The multiple magnet steel being arranged on the external peripheral surface of the rotor core;Wherein, divide on the external peripheral surface of the rotor core Multiple rotor pseudodonts are furnished with, a set of cleat assemblies are set on each rotor pseudodont, each magnet steel is arranged at adjacent two sets Between cleat assemblies.
- 2. brshless DC motor according to claim 1, it is characterised in that:The rotor pseudodont is T-shaped for both sides indent Structure, the bottom of the rotor pseudodont of the T-type structure are fixedly connected with the periphery of the rotor core.
- 3. brshless DC motor according to claim 2, it is characterised in that:Often set cleat assemblies include the first of Z-shaped Second chock of chock, anti-Z-shaped, the first chock of the Z-shaped and the second chock of anti-Z-shaped are arranged in the T respectively The both sides of the rotor pseudodont of type structure.
- 4. brshless DC motor according to claim 3, it is characterised in that:The cross section of the magnet steel is arc, described The magnet steel of arc is provided at both ends with step-like structure, and two sets of adjacent cleat assemblies include first set cleat assemblies and the Two sets of cleat assemblies, the magnet steel is arranged between the first set cleat assemblies and second set of cleat assemblies, and the magnet steel One end be arranged in Z-shaped in the first set cleat assemblies the first chock side, the other end card of the magnet steel sets The side of second chock of the anti-Z-shaped in second set of cleat assemblies.
- 5. brshless DC motor according to claim 3, it is characterised in that:The first chock, the anti-Z-shaped of the Z-shaped The second chock it is Nian Jie using adhesive with the both sides of the rotor pseudodont of the T-type structure respectively.
- 6. brshless DC motor according to claim 4, it is characterised in that:One end of the magnet steel and the first set wedge The side of first chock of the Z-shaped in sub-component is bonded using adhesive, the other end of the magnet steel and second set of wedge The side of second chock of the anti-Z-shaped in sub-component is bonded using adhesive.
- 7. brshless DC motor according to claim 4, it is characterised in that:The first chock, the anti-Z-shaped of the Z-shaped The outer surface of the second chock and the outer surface of the magnet steel be located at same arcwall face.
- 8. brshless DC motor according to claim 3, it is characterised in that:First chock and the second chock are non- Permeability magnetic material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710910587.3A CN107689697A (en) | 2017-09-29 | 2017-09-29 | Brshless DC motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710910587.3A CN107689697A (en) | 2017-09-29 | 2017-09-29 | Brshless DC motor |
Publications (1)
Publication Number | Publication Date |
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CN107689697A true CN107689697A (en) | 2018-02-13 |
Family
ID=61153806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710910587.3A Pending CN107689697A (en) | 2017-09-29 | 2017-09-29 | Brshless DC motor |
Country Status (1)
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CN (1) | CN107689697A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111614174A (en) * | 2019-02-25 | 2020-09-01 | 中车株洲电力机车研究所有限公司 | Surface-mounted motor rotor |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1954474A (en) * | 2004-05-17 | 2007-04-25 | 格伦德福斯联合股份公司 | Lamination stack made by segments |
CN201374596Y (en) * | 2009-01-15 | 2009-12-30 | 姜卫亮 | Brushless motor rotor |
CN202183658U (en) * | 2011-08-17 | 2012-04-04 | 浙江迪贝电气股份有限公司 | Magnetic tile fixing structure of permanent magnet motor rotor |
US20130285482A1 (en) * | 2011-01-18 | 2013-10-31 | Mitsubishi Electric Corporation | Rotor of electric motor, mold motor, air conditioner, and method of manufacturing the mold motor |
CN104728133A (en) * | 2013-12-20 | 2015-06-24 | 日本电产株式会社 | Fan |
CN106130225A (en) * | 2016-08-30 | 2016-11-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and magnetic steel fixed structure, motor |
CN206195499U (en) * | 2016-11-25 | 2017-05-24 | 深圳市大地和电气股份有限公司 | Be applied to electric bicycle's external rotor |
CN207368772U (en) * | 2017-09-29 | 2018-05-15 | 深圳市大地和电气股份有限公司 | Brshless DC motor |
-
2017
- 2017-09-29 CN CN201710910587.3A patent/CN107689697A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1954474A (en) * | 2004-05-17 | 2007-04-25 | 格伦德福斯联合股份公司 | Lamination stack made by segments |
CN201374596Y (en) * | 2009-01-15 | 2009-12-30 | 姜卫亮 | Brushless motor rotor |
US20130285482A1 (en) * | 2011-01-18 | 2013-10-31 | Mitsubishi Electric Corporation | Rotor of electric motor, mold motor, air conditioner, and method of manufacturing the mold motor |
CN202183658U (en) * | 2011-08-17 | 2012-04-04 | 浙江迪贝电气股份有限公司 | Magnetic tile fixing structure of permanent magnet motor rotor |
CN104728133A (en) * | 2013-12-20 | 2015-06-24 | 日本电产株式会社 | Fan |
CN106130225A (en) * | 2016-08-30 | 2016-11-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and magnetic steel fixed structure, motor |
CN206195499U (en) * | 2016-11-25 | 2017-05-24 | 深圳市大地和电气股份有限公司 | Be applied to electric bicycle's external rotor |
CN207368772U (en) * | 2017-09-29 | 2018-05-15 | 深圳市大地和电气股份有限公司 | Brshless DC motor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111614174A (en) * | 2019-02-25 | 2020-09-01 | 中车株洲电力机车研究所有限公司 | Surface-mounted motor rotor |
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