CN109149817A - High power DC rotor for brushless motor structure - Google Patents
High power DC rotor for brushless motor structure Download PDFInfo
- Publication number
- CN109149817A CN109149817A CN201811180498.9A CN201811180498A CN109149817A CN 109149817 A CN109149817 A CN 109149817A CN 201811180498 A CN201811180498 A CN 201811180498A CN 109149817 A CN109149817 A CN 109149817A
- Authority
- CN
- China
- Prior art keywords
- iron core
- magnetic yoke
- rotor
- interior iron
- permanent magnet
- 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.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229920003023 plastic Polymers 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 13
- 229920006351 engineering plastic Polymers 0.000 claims abstract description 11
- 238000004806 packaging method and process Methods 0.000 claims abstract description 8
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- KKEYFWRCBNTPAC-UHFFFAOYSA-N benzene-dicarboxylic acid Natural products OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 3
- -1 poly terephthalic acid diol ester Chemical class 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000397426 Centroberyx lineatus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000206 moulding compound Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 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
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses high power DC rotor for brushless motor structures, including interior iron core, magnetic yoke, permanent magnet；The interior iron core is set as concentric with magnetic yoke, and the outer round surface of interior iron core is uniformly arranged there are five strip boss a, and the distance between the cylinder body outer surface of interior iron core and magnetic yoke inner ring body are greater than 15mm；By filling tubular molding compound BMC between interior iron core and magnetic yoke for interior iron core and magnetic yoke plastic packaging into core assembly；The permanent magnet is evenly distributed on magnetic yoke outer ring, and full terephthalate (PBT) engineering plastic is filled in the cavity formed between core assembly and permanent magnet；This is reasonable in design, and mechanical rigid intensity is reliable, and electrical safety performance is met the requirements, main to reduce rotor selfcapacity amount, avoids interior outer iron core and forms the structure of similar capacitor, while can save a large amount of raw material, cost performance is high.
Description
Technical field
The present invention relates to the field of rotor more particularly to high power DC rotor for brushless motor structures.
Background technique
The brushless DC motor of permanent-magnet structure is during motor running due to the effect of induced electromotive force, rotor iron
Wicking surface can generate induced electromotive force, the imbalance that bearing causes its inside and outside circle potential difference can be conducted to by shaft, to lead
The abrasion of steel ball shape corrugate and bumps, galvano-cautery phenomenon is caused to will affect motor overall noise and service life.The prior art it is big
Power brushless dc motor rotor structure generally uses inside and outside insulating structure of iron core, is arranged between outer yoke and interior iron core
Equidistant gap, terephthalate (PBT) engineering plastic filling form the opposing insulation structure of rotor in this gap, galvano-cautery can be effectively reduced
It generates, reduces the generation of electromotive force.And since the rotor volume that heavy-duty motor uses is larger, and load when motor operating
Also very greatly, huge radial torsion and axial tension can be born when rotor startup and operating, be arranged between outer yoke and interior iron core
Equidistant gap generally will be less than 3mm, just can guarantee injection terephthalate (PBT) engineering plastic after integral rotor rigid；If setting
Gap it is excessive, molding wall thickness is difficult uniformly, and needs a large amount of engineering plastics of bolus injection, and in the market commonly use injection molding machine spiral shell
Bar storing capacity can not meet the injection molding requirement, can there is a large amount of shrinkage cavities, cold shock testing meeting the requirements inside PBT
After can crack, influence the structural strength of entire rotor；And since inside and outside iron core gap is too small, during motor running by
It will form the discharging structure of a similar capacitor between the two in the effect of induced electromotive force, cause rotor selfcapacity amount big,
To influence electric property, security performance of motor etc..
Summary of the invention
It is an object of the present invention to provide a kind of high power DC rotor for brushless motor structures, and simple and reasonable, rigidity is strong
Degree is reliable, has a safety feature, solves the above technical problem.
In order to achieve the above technical purposes, reach above-mentioned technical requirements, the technical scheme adopted by the invention is that: big function
Rate direct current rotor for brushless motor structure, including interior iron core, magnetic yoke, permanent magnet；It is characterized by: the interior iron core and magnetic yoke
It is set as with one heart, the outer round surface of interior iron core is uniformly arranged there are five strip boss a, the cylinder body outer surface of interior iron core and magnetic
The distance between yoke inner ring body is greater than 15mm；By filling tubular molding compound BMC between interior iron core and magnetic yoke for interior iron core
With magnetic yoke plastic packaging at core assembly；The permanent magnet is evenly distributed on magnetic yoke outer ring, is formed between core assembly and permanent magnet
Cavity in fill full terephthalate (PBT) engineering plastic.
Preferred: the upper end or lower end of the interior iron core are provided with flange, if being evenly arranged with around flange
Dry semicircle orifice.
Preferred: the outer round surface of the magnetic yoke is evenly arranged with several vertical dovetail grooves, convex block and dovetail groove phase
It is equipped in dovetail groove to separate permanent magnet；The inner surface of magnetic yoke is set as polygon, and is evenly distributed with eight strips
One of rectangular recess is provided between boss b, every two boss b.
It is preferred: to be provided with the reinforcing rib parallel with its end face among the core assembly, make the section of core assembly
At two H-types；The both ends of the surface of core assembly are along the circumferential direction evenly arranged with several supporting walls perpendicular with its end face, branch
Support wall is provided with the I-shaped of radian；Reinforcing rib and the supporting walls at both ends form the symmetrical cavity in both ends；Core assembly
End face position corresponding with dovetail groove is provided with trapezoidal groove.
Preferred: the terephthalate (PBT) engineering plastic is poly terephthalic acid diol ester.
Beneficial effects of the present invention；High power DC rotor for brushless motor structure, compared with traditional structure: the structure is set
Rationally, mechanical rigid intensity is reliable, and electrical safety performance is met the requirements for meter, main to reduce rotor selfcapacity amount, avoids
Interior outer iron core forms the structure of similar capacitor, while can save a large amount of raw material, cost performance height；Inside configuration uses group
Shape moulding compound BMC material replaces traditional integrated injection molding PBT rotor structure, since BMC material adapts to various moulding process, heat
Solidification rear surface finish is good, and mechanical strength, electrical property is reliable, while having the spies such as water-fast, oil resistant, heat-resisting, corrosion-resistant, fire-retardant
Property, cost performance is high；It is not only to support integral rotor structure, it primarily serves the effect of insulate interior iron core, magnetic yoke, Wo Menzhi
Road air is best insulator, and many symmetrical cavity structures of BMC core assembly design can play very good insulation
Effect；The outer diameter of interior iron core can be made to reach minimum, magnetic yoke inner ring diameter in design and reach maximum, avoid the two gap too small
The structure for generating similar capacitor, causes rotor capacitance big；The reduction induced electromotive force of energy amplitude peak is conducted to interior iron simultaneously
Core and shaft effectively prevent the generation of galvano-cautery；Magnetic yoke of the invention is due to being used for large capacity motor structure, usual magnetic yoke inner ring
It is relatively large in diameter, can then design other product inside inner ring simultaneously, realize that a mould is dual-purpose or even multi-purpose, realize stock utilization most
Bigization has saved cost.
Detailed description of the invention
Fig. 1 is the schematic perspective view of rotor of the present invention；
Fig. 2 is the cross section view of rotor of the present invention；
Fig. 3 is A-A cross-sectional view in Fig. 2 of the present invention；
Fig. 4 is iron core schematic perspective view in the present invention；
Fig. 5 is core assembly three-dimensional cutaway view of the present invention；
Fig. 6 is magnetic yoke schematic perspective view of the present invention；
In figure: iron core in 1.；2. magnetic yoke；3. core assembly；4. permanent magnet；101. cylinder body；102. boss a；103. method
Lan Bian；104. semicircle orifice；201. dovetail groove；202. convex block；203. boss b；401. reinforcing rib；402. supporting walls；403. cavity；
404. trapezoidal groove；501. hole a；502. hole b；503. hole c.
Specific embodiment
In order to be more clear goal of the invention of the invention, technical solution and its advantageous effects, below in conjunction with attached drawing
And specific embodiment, the present invention will be described in further detail；
In attached drawing 1-6: high power DC rotor for brushless motor structure, including interior iron core 1, magnetic yoke 2, permanent magnet 4；Its feature
Be: the interior iron core 1 is set as concentric with magnetic yoke 2, and the outer round surface of interior iron core 1 is uniformly arranged there are five strip boss
A102, the distance between 101 outer surface of cylinder body of interior iron core 1 and 2 inner ring body of magnetic yoke are greater than 15mm；By in interior iron core
Tubular molding compound BMC is filled between 1 and magnetic yoke 2 by interior iron core 1 and 2 plastic packaging of magnetic yoke into core assembly 3；The permanent magnet 4 is equal
It is even to be distributed in 2 outer ring of magnetic yoke, full terephthalate (PBT) engineering plastic is filled in the cavity formed between core assembly 3 and permanent magnet 4.
The upper end or lower end of the interior iron core 1 are provided with flange 103, if being evenly arranged with around flange 103
Dry semicircle orifice 104；The outer round surface of the magnetic yoke 2 is evenly arranged with several vertical dovetail grooves 201, convex block 202 and swallow
Stern notch 201, which matches, to be arranged in dovetail groove to separate permanent magnet 4；The inner surface of magnetic yoke 2 is set as polygon, and is uniformly distributed
There are eight strip boss b203, is provided with one of rectangular recess between every two boss b203；It is set among the core assembly 3
It is equipped with the reinforcing rib 401 parallel with its end face, makes the section of core assembly 3 at two H-types；The both ends of the surface of core assembly 3 are along circle
Circumferential direction is evenly arranged with several supporting walls 402 perpendicular with its end face, and supporting walls 402 are provided with the I-shaped of radian
Type；Reinforcing rib 401 and the supporting walls 402 at both ends form the symmetrical cavity 403 in both ends；The end face of core assembly 3 and dovetail groove
201 corresponding positions are provided with trapezoidal groove 404；The terephthalate (PBT) engineering plastic is poly terephthalic acid diol ester.
Specific implementation of the invention: operating procedure is as follows: interior iron core 1 is first put into togerther plastic package die type chamber with magnetic yoke 2,
Mold is equipped with several boss, and the semicircle orifice 105 on a part of boss and interior core flange side, the dovetail groove in magnetic yoke cooperate
For positioning iron core 1 in fixed, for another part boss in addition to being used to support interior iron core 1 and magnetic yoke 3, mainly making after plastic packaging can be
Effective BMC wall thickness is formed between interior iron core 1 and magnetic yoke 2, be provided with supporting the intensity of entire rotor and bear huge rotor radial,
Axial thrust load.BMC material is injected in the cavity formed between plastic package die and interior iron core 1, magnetic yoke 2 again to be heating and curing molding,
Become BMC core assembly 3 after integrated plastic packaging.Then BMC core assembly and permanent magnet 4 are put into mold filling PBT engineering plastics,
The two is closely molded and is combined into an integral rotor component.So far this rotor structure is just completed, and is finally pressed into shaft and interior
Iron core riveting, can put into assembly after magnetizing.
Interior iron core 1 is made of powdered metallurgical material, can reach 60 ° or more through Overheating Treatment hardness HRC after sintering, both save
About material in turn ensures rigid.Outer circle is symmetrically evenly equipped with several I-shaped boss support arms for bearing radial torsion
Square, one end end face are equipped with the axial thrust that certain thickness flange is used to bear motor.Flange is equipped with several semicircles
Hole, uniformly distributed three positioning pins, as fabrication hole a501, hole b502, hole c503 on plastic package die, positioning is fixed when being used for plastic packaging
Interior iron core.
2 outer ring of magnetic yoke is laid with several dovetail grooves 201, can be by the lock of permanent magnet 4 tightly in magnetic yoke 2 after PBT filling
Outer circle guarantees the stabilization of rotor overspeed test passed through with magnetic property.Plastic package die upper and lower mould is equipped with determining for identical swallowtail shape
Position pin insertion magnetic yoke dovetail groove for being accurately positioned magnetic yoke, while not making BMC material overflow into the influence of magnetic yoke dovetail groove thereafter forever
Magnet PBT coats intensity.If centre has dry plate iron core without dovetail groove, several are equipped with for separating forever in dovetail groove corresponding position
The boss of magnet, mutual gap is kept roughly the same after so that permanent magnet is directly placed into mold, guarantees the outer of entire rotor
Circle bounce, dynamic balancing and air gap flux density.Several boss support arms are arranged in magnetic yoke inner ring, are used to bear rotor after plastic packaging
Radial torque.
Certain thickness BMC reinforcing rib 401 is equipped among BMC core assembly, circumferencial direction is equipped with the I-shaped BMC of more equal parts
Support arm 402, the two have been used to support entire rotor structure.It is symmetrically several that support arm forms both ends with reinforcing rib between each other
Cavity forms air barrier for the interior outer iron core that insulate, and reduces the generation that rotor carried charge avoids galvano-cautery.The both ends end face BMC
It is laid with multiple grooves or boss, magnetic yoke outer ring is compressed when locking for plastic package die, prevents that iron core can be squeezed while flash
Gap between piece piece, can prevent because iron core tinertoy it is not tight caused by vibration noise of motor.PBT material is packed into when being molded with permanent magnet
Groove forms boss, and BMC core assembly and permanent magnet is made to be combined into an entirety, tightly locks permanent magnet and bears rotor
Radial torque.
Interior 1 outer ring of iron core and the minimum insulation gap of 2 inner ring of magnetic yoke are greater than 15mm, there is the mutual shape of BMC material between the two
At cavity for insulating, both avoid the too small structure for forming similar capacitor in gap to greatest extent, rotor capacitance dropped
To minimum level.
Because being used for large capacity motor structure, usual magnetic yoke inner ring diameter is larger for magnetic yoke of the invention, can be with inside inner ring
Other product is designed simultaneously, realizes that a mould of blanking die is dual-purpose or even multi-purpose, realizes that stock utilization maximizes, it is a large amount of to save
Cost.
Above-described embodiment is only intended to clearly illustrate description made by the present invention, and does not limit the embodiments,
To those of ordinary skill in the art, other various forms of variations or change can also be made on the basis of the above description
Dynamic, there is no necessity and possibility to exhaust all the enbodiments, and the obvious variation or change thus amplified out
It is dynamic to be still in the protection scope of this invention.
Claims (5)
1. high power DC rotor for brushless motor structure, including interior iron core (1), magnetic yoke (2), permanent magnet (4)；Its feature exists
In: the interior iron core (1) is set as concentric with magnetic yoke (2), the outer round surface of interior iron core (1) be uniformly arranged there are five strip it is convex
Platform a(102), the distance between cylinder body (101) outer surface of interior iron core (1) and magnetic yoke (2) inner ring body are greater than 15mm；It is logical
It crosses and fills tubular molding compound BMC between interior iron core (1) and magnetic yoke (2) for interior iron core (1) and magnetic yoke (2) plastic packaging into core assembly
(3)；The permanent magnet (4) is evenly distributed on magnetic yoke (2) outer ring, the cavity formed between core assembly (3) and permanent magnet (4)
It is interior to fill full terephthalate (PBT) engineering plastic.
2. high power DC rotor for brushless motor structure according to claim 1, it is characterised in that: the interior iron core
(1) upper end or lower end is provided with flange (103), and flange is evenly arranged with several semicircle orifices around (103)
(104).
3. high power DC rotor for brushless motor structure according to claim 1, it is characterised in that: the magnetic yoke
(2) outer round surface is evenly arranged with several vertical dovetail grooves (201), and convex block (202) matches setting with dovetail groove (201)
To separate permanent magnet (4) in dovetail groove；The inner surface of magnetic yoke (2) is set as polygon, and it is convex to be evenly distributed with eight strips
Platform b(203), every two boss b(203) between be provided with one of rectangular recess.
4. high power DC rotor for brushless motor structure according to claim 1, it is characterised in that: the iron core group
The reinforcing rib parallel with its end face (401) are provided among part (3), make the section of core assembly (3) at two H-types；Iron core group
The both ends of the surface of part (3) are along the circumferential direction evenly arranged with several supporting walls perpendicular with its end face (402), supporting walls
(402) it is provided with the I-shaped of radian；Reinforcing rib (401) and the supporting walls (402) at both ends form the symmetrical cavity in both ends
(403)；The end face of core assembly (3) position corresponding with dovetail groove (201) is provided with trapezoidal groove (404).
5. high power DC rotor for brushless motor structure according to claim 1, it is characterised in that: the engineering plastic
Material PBT is poly terephthalic acid diol ester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811180498.9A CN109149817B (en) | 2018-10-11 | 2018-10-11 | Rotor structure for high-power DC brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811180498.9A CN109149817B (en) | 2018-10-11 | 2018-10-11 | Rotor structure for high-power DC brushless motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109149817A true CN109149817A (en) | 2019-01-04 |
| CN109149817B CN109149817B (en) | 2024-10-01 |
Family
ID=64811433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811180498.9A Active CN109149817B (en) | 2018-10-11 | 2018-10-11 | Rotor structure for high-power DC brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109149817B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001268831A (en) * | 2000-03-21 | 2001-09-28 | Matsushita Electric Ind Co Ltd | Permanent magnet rotor |
| JP2001298887A (en) * | 2000-04-14 | 2001-10-26 | Matsushita Electric Ind Co Ltd | Motor |
| CN102611226A (en) * | 2011-12-23 | 2012-07-25 | 浙江京马电机有限公司 | Motor rotor |
| CN102611225A (en) * | 2011-12-21 | 2012-07-25 | 石泰山 | Rotor structure |
| CN103887945A (en) * | 2014-03-21 | 2014-06-25 | 深圳先进技术研究院 | Hub motor and manufacturing method thereof |
| CN203850945U (en) * | 2013-10-07 | 2014-09-24 | 江门市地尔汉宇电器股份有限公司 | Drainage pump motor equipped with connector accessory |
| CN104505963A (en) * | 2015-01-05 | 2015-04-08 | 江苏富天江电子电器有限公司 | Injection-molding shock absorption rotor |
| CN204349681U (en) * | 2015-01-29 | 2015-05-20 | 江苏富天江电子电器有限公司 | A kind ofly vibrate faint direct current machine |
| CN204794420U (en) * | 2015-06-11 | 2015-11-18 | 合肥市通得力电气制造有限公司 | Air conditioner fan motor pieces together insulating permanent magnet rotor of a piece formula |
| CN208986703U (en) * | 2018-10-11 | 2019-06-14 | 江苏富天江电子电器有限公司 | High power DC rotor for brushless motor structure |
-
2018
- 2018-10-11 CN CN201811180498.9A patent/CN109149817B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001268831A (en) * | 2000-03-21 | 2001-09-28 | Matsushita Electric Ind Co Ltd | Permanent magnet rotor |
| JP2001298887A (en) * | 2000-04-14 | 2001-10-26 | Matsushita Electric Ind Co Ltd | Motor |
| CN102611225A (en) * | 2011-12-21 | 2012-07-25 | 石泰山 | Rotor structure |
| CN102611226A (en) * | 2011-12-23 | 2012-07-25 | 浙江京马电机有限公司 | Motor rotor |
| CN203850945U (en) * | 2013-10-07 | 2014-09-24 | 江门市地尔汉宇电器股份有限公司 | Drainage pump motor equipped with connector accessory |
| CN103887945A (en) * | 2014-03-21 | 2014-06-25 | 深圳先进技术研究院 | Hub motor and manufacturing method thereof |
| CN104505963A (en) * | 2015-01-05 | 2015-04-08 | 江苏富天江电子电器有限公司 | Injection-molding shock absorption rotor |
| CN204349681U (en) * | 2015-01-29 | 2015-05-20 | 江苏富天江电子电器有限公司 | A kind ofly vibrate faint direct current machine |
| CN204794420U (en) * | 2015-06-11 | 2015-11-18 | 合肥市通得力电气制造有限公司 | Air conditioner fan motor pieces together insulating permanent magnet rotor of a piece formula |
| CN208986703U (en) * | 2018-10-11 | 2019-06-14 | 江苏富天江电子电器有限公司 | High power DC rotor for brushless motor structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109149817B (en) | 2024-10-01 |
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