CN106533009A - Novel permanent-magnet rotor and motor - Google Patents
Novel permanent-magnet rotor and motor Download PDFInfo
- Publication number
- CN106533009A CN106533009A CN201611148622.4A CN201611148622A CN106533009A CN 106533009 A CN106533009 A CN 106533009A CN 201611148622 A CN201611148622 A CN 201611148622A CN 106533009 A CN106533009 A CN 106533009A
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- China
- Prior art keywords
- rotor
- permanent magnetic
- novel permanent
- short
- magnet steel
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- 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.)
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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
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
- H02K15/165—Balancing the rotor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides a novel permanent-magnet rotor and a motor. The novel permanent-magnet rotor comprises a rotor core, a rotor rotation shaft, magnetic steel, a magnetic steel protection sleeve, short-circuit rings and a fastening nut. When the magnetic steel is needed to be replaced or power is adjusted, the fastening nut on the rotor rotation shaft can be directly disassembled, the corresponding short-circuit ring is pulled out, the magnetic steel protection sleeve is pressed out, and thus, the magnetic steel can be replaced; and after replacement is completed, the magnetic steel protection sleeve is assembled, the corresponding short-circuit ring and the fastening nut are installed, and thus, magnetic steel maintenance operation of the permanent-magnet rotor is achieved. The novel permanent-magnet rotor is more convenient to maintain, and permanent magnetization of a built-in motor of a centrifugal refrigerating machine becomes possible.
Description
Technical field
The present invention relates to technical field of motors, in particular to a kind of novel permanent magnetic rotor and motor.
Background technology
Due to permagnetic synchronous motor magnet steel Surface Mount method it is not high with the requirement on machining accuracy of yoke to magnetic pole, low cost, method
It is easy；Can simplify the structure of some parts, or even the structure of whole motor can be simplified, and because the stress distribution ratio of weld
Mode connects for screw is more uniformly distributed, therefore motor can be made reliably to work under vibration and impact load.
Magnet steel Surface Mount technique is mostly adopted at present, wraps up in shield latitude band (micromachine) using the thin stainless steel sheet| of rotor outsourcing or glue
Affected by centrifugal force to reduce magnet steel, major part is the bag stainless sheet steel argon arc welding spot welding after rotor posts magnet steel
Form, due to welding gap and short-circuited conducting sleeve seam, under special operation condition：Such as centrifugal chilling unit motor, in motor electronic coil
There is refrigerant to run；Direct-connected oil lubrication, water lubrication air compressor machine are installed because of axle envelope, the factor such as aging causes coolant to enter stator leaching
Bubble rotor, such longtime running cause the Nd-Fe-B magnet steel corrosion of rotor and shorten the life-span of adhesive, maintaining inconvenience.
The content of the invention
In view of this, the invention provides a kind of novel permanent magnetic rotor and motor, can solve the problem that the problems referred to above.
The technical scheme that the present invention is provided is as follows：
A kind of novel permanent magnetic rotor, including：Rotor core, rotor shaft, magnet steel, magnet steel protective case, short-circuited conducting sleeve, fastening spiral shell
Cap and grounding carbon brush, wherein：
The rotor core is set in outside the rotor shaft, and the magnet steel is set in outside the rotor core, the magnetic
Steel protective case is set in outside the magnet steel, and the two ends of the magnet steel protective case are respectively arranged with end cap；The rotor shaft two ends
Dismountable short-circuited conducting sleeve is arranged with respectively, and the short-circuited conducting sleeve is arranged on the end cap two ends, and the short-circuited conducting sleeve is by the fastening
Nut is fixed with the rotor shaft；The grounding carbon brush be that the rotor shaft is connected, for eliminating shaft current.
Further, the rotor shaft two ends are provided with external screw thread, and the short-circuited conducting sleeve inwall is provided with and the outer spiral shell
The internal thread that line matches, the short-circuited conducting sleeve passes through the internal thread and external screw thread cooperation is set in the two of the rotor shaft
End.
Further, sealing ring is provided between the short-circuited conducting sleeve and the rotor shaft.
Further, the sealing ring is fluororubber O-type ring.
Further, the novel permanent magnetic rotor realizes dynamic balancing using duplicate removal mode.
Further, the magnet steel protective case is prefabricated stainless sheet steel.
Further, the grounding carbon brush is arranged on the drive end or anti-drive end of the novel permanent magnetic rotor.
Further, the short-circuited conducting sleeve is connected with the magnet steel, and the machinery for suppressing the novel permanent magnetic rotor shakes
Swing.
Further, the short-circuited conducting sleeve is copper ring.
Present invention also provides a kind of motor, including novel permanent magnetic rotor recited above.
The novel permanent magnetic rotor that the embodiment of the present application is provided, by arranging magnet steel protective case, is needing to change or is keeping in repair magnetic
Fastening nut on rotor shaft directly can be disassembled, short-circuited conducting sleeve is extracted by steel or when carrying out power and adjusting, then by magnetic
Steel protective case is extruded, you can carry out the replacing of magnet steel.After the completion of replacing, magnet steel protective case suit is completed, by short-circuited conducting sleeve and tightly
Gu nut installation, that is, realize the magnet steel attended operation of p-m rotor, maintaining is more convenient, makes in centrifugal chilling unit
The permanent magnetism chemical conversion of formula motor is put in order to possible.The novel permanent magnetic rotor provided using the embodiment of the present application, demolition and maintenance are convenient, peace
Dress is easy, without the operating mode for affecting other equipment.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by to be used attached needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is a kind of structural representation of novel permanent magnetic rotor provided in an embodiment of the present invention.
Fig. 2 is the generalized section of novel permanent magnetic rotor provided in an embodiment of the present invention.
Icon：100- novel permanent magnetic rotors；101- rotor cores；102- magnet steel；103- rotor shafts；104- magnet steel is protected
Set；105- short-circuited conducting sleeves；106- fastening nuts.
Specific embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground description, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Generally exist
The component of the embodiment of the present invention described and illustrated in accompanying drawing can be arranged and be designed with a variety of configurations herein.Cause
This, the detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit claimed invention below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then in subsequent accompanying drawing which further need not be defined and is explained.Meanwhile, the present invention's
In description, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relative importance.
Electric system is widely used in each field such as industrial production, daily life, and electric system power consumption accounts for various countries
60% of power consumption or so, is the primary content of various countries' energy conservation.The Chinese government pays much attention to electrical machine energy-saving work, always will
Energy-saving of motor system engineering as one of state key energy conservation project, by promulgating a series of electrical machine energy-saving policies and supporting arranging
Apply, using high efficiency motor, improve China's motor efficiency level.Poorly efficient motor is substituted using high efficiency motor merely to produce
1%～2% energy saving space, and the efficiency level of the current electric system of China is with 10%～30% room for promotion.Improve
Electric system efficiency, greatly develops the important step that energy-saving of motor system technology is China's energy-saving and emission-reduction policy execution, and promotees
Enter using energy source to it is efficient, clean the committed step that direction is developed.
To carry out the related content such as " propulsion resources conservation intensive utilization " in " 13 " planning, it is to coordinate to promote
《The notice of plan (2013-2015) is lifted with regard to organizing and implementing motor efficiency》(Ministry of Industry and Information's interlink (2013) 226),《Energy
Effect " leader " system embodiment》(send out and change ring money (2014) 3001),《In-depth standardization effort reform scheme》(promulgated by the State Council
(2015) No. 13),《Suggestion with regard to strengthening energy conservation standardization work》(Office of the State Council sends out (2015) No. 16),《Mandatory standard is integrated
Simplify programme of work》The enforcement of energy-conservations such as (Office of the State Council send out (2016) No. 3), standardization policy, propulsion China electric system efficiency water
Flat raising, promotes energy-conserving product to promote, and on May 26th, 2016, Chinese energy-conservation association criterion special commission, Evaluation on Energy Saving are specially entrusted
The working conference in 2016 of meeting --- high efficiency motor system and energy-saving benefit assessment joint working group is smoothly held in Beijing.
To promote motor efficiently to remanufacture, improve motor and remanufacture standard rush system level evaluation method, promotion remanufactures row
Industry sound development, the efficient re-manufacturing technology of propulsion electric machine and product, fully implement《Recycling economy promotion law》, promote resources conservation
Type, pro-environmental society, China Institute of Standardization have been held motor in Shanghai on July 20th, 2016 and have efficiently been made again
Make forum.Grind from Energy Labeling administrative center of China Institute of Standardization, Shanghai Energy Conservation supervision center, Shanghai electrical science
Study carefully institute, International Copper Association and domestic high efficiency motor manufacturer representative and more than 30 people of welcome guest has attended this meeting, set up efficient electric
Machine remanufactures joint working group, promotes energy-saving of motor system to transform the fusion and development remanufactured with motor, and old motor in synchrony is forever
Magnetization remanufactures the development fast traffic lane for also putting on national recycling economy.
In view of this, the embodiment of the present application provides a kind of novel permanent magnetic rotor 100, as depicted in figs. 1 and 2, including：Turn
Sub- iron core 101, rotor shaft 103, magnet steel 102, magnet steel protective case 104, short-circuited conducting sleeve 105, fastening nut 106 and grounding carbon brush.
The rotor core 101 is set in outside the rotor shaft 103, and the magnet steel 102 is set in the rotor core
Outside 101, the magnet steel protective case 104 is set in outside the magnet steel 102, and the two ends of the magnet steel protective case 104 are respectively arranged with
End cap；103 two ends of the rotor shaft are arranged with dismountable short-circuited conducting sleeve 105 respectively, and the short-circuited conducting sleeve 105 is arranged on the end
Lid two ends, the short-circuited conducting sleeve 105 are fixed with the rotor shaft 103 by the fastening nut 106；The grounding carbon brush be
The rotor shaft 103 connects, for eliminating shaft current.
Specifically, the magnet steel protective case 104 in the embodiment of the present application can adopt the stainless sheet steel of 3 to 5mm to make, root
According to the size of rotor, the concrete size of magnet steel protective case 104 is determined.
Specifically, the rotor shaft 103 is provided with external screw thread, and 105 inwall of the short-circuited conducting sleeve is provided with and the outer spiral shell
The internal thread that line matches, the short-circuited conducting sleeve 105 passes through the internal thread and external screw thread cooperation is set in the rotor shaft 103
Near the two ends of the magnet steel protective case 104.
Put into excitation in motor, during the rotating speed that pulls in, novel permanent magnetic rotor 100 can produce vibration.It is i.e. new
P-m rotor 100 is acted on by electromagnetic force, and its magnetic field center occurs the magnetic field center for being ahead of stator, or delayed
In the situation of the magnetic field center of stator.The oscillation amplitude of novel permanent magnetic rotor 100 can be gradually decreased, until stable.New
In the oscillatory process of p-m rotor 100, the fluctuation of stator and exciting current will be caused, as the Damper Winding of rotor has suppression to shake
The effect swung, arranging short-circuited conducting sleeve 105 can strengthen the suppression to current fluctuation phenomenon, it is ensured that the normal startup of motor.Short-circuited conducting sleeve
105 can adopt copper ring or other materials.
Further, sealing ring is provided between the short-circuited conducting sleeve 105 and the rotor shaft 103.The sealing ring can be with
Using fluororubber O-type ring.The quantity of short-circuited conducting sleeve 105 can be two, be separately positioned on the two ends of rotor shaft 103, short-circuited conducting sleeve
The sealing ring arranged in 105 is also corresponding two, and is fixed in rotor shaft 103 by two fastening nuts 106.
The end cap at 104 two ends of magnet steel protective case can arrange cooling fan blade, and then conveniently carry out dynamically balanced operation, application
Rotor on refrigerator can also make smooth nose circle face due to being operated in low temperature filling, end cap, mitigate motor load and enter
And improve the operating efficiency of motor.
In the embodiment of the present application, by causing needing to novel permanent magnetic rotor using prefabricated magnet steel protective case 104
When magnet steel 102 in 100 carries out changing with repair operation, can carry out after magnet steel protective case 104 is dismantled, magnet steel protective case
104 easy accessibility, operates beneficial to maintenance and repair, and magnet steel protective case 104 can be reused, and reduces maintenance cost.
Due to current permagnetic synchronous motor, especially large-scale permagnetic synchronous motor is typically monitored using the Wen Yi that shakes, due to
The factor major part enterprise of cost is simultaneously provided without antistatic professional bearing, along with the difference of frequency converter brand, performance is possible to
Motor shaft electrolytic corrosion can be produced
It is understood that in the embodiment of the present application, grounding carbon brush is using advising with 103 diameter of axle identical of rotor shaft
Lattice, the length that the concrete mounting means of grounding carbon brush can be according to motor with the installation situation of equipment, rotor shaft 103 come true
Fixed, grounding carbon brush may be mounted at drive end or anti-drive end.The earthing of casing of grounding carbon brush, after rotor produces shaft current
Just shaft current can be eliminated by the grounding carbon brush being grounded.
The effect of grounding carbon brush mainly has：As air gap may be uneven in generator is installed, during coil is installed in addition
Impedance is also not near identical, can induce shaft voltage in generator operation on generator amature.Due to the presence of shaft voltage, operation
In the shaft voltage oil film row can be punctured into shaft current by two ends of rotor bearing, occur burning out the situation of bearing shell.In order to prevent here
Phenomenon is planted, is grounded with grounding carbon brush, to eliminate shaft current.
It is understood that the novel permanent magnetic rotor 100 can be realizing dynamic balancing using duplicate removal mode.Through dynamic balancing
Rotor operation afterwards is more steady, and mechanical energy consumption is also less.
The novel permanent magnetic rotor 100 provided using the embodiment of the present application, is being needed to change or keep in repair magnet steel 102 or is carrying out work(
When rate is adjusted, directly the fastening nut 106 on rotor shaft 103 can be disassembled, short-circuited conducting sleeve 105 is extracted, then by magnetic
Steel protective case 104 is extruded, you can carry out the replacing of magnet steel 102.After the completion of replacing, the suit of magnet steel protective case 104 is completed, will be short
106 installation of road ring 105 and fastening nut, that is, realize 102 attended operation of magnet steel of novel permanent magnetic rotor 100, safeguards and protects
Support more convenient, the permanent magnetism of centrifugal chilling unit built-in motor is melted in order to possible.In sum, using the embodiment of the present application
The novel permanent magnetic rotor 100 of offer, demolition and maintenance are convenient, simple installation, without the operating mode for affecting other equipment.
In view of this, the embodiment of the present application additionally provides a kind of motor, including novel permanent magnetic rotor recited above 100.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.It should be noted that：Similar label and letter exist
Similar terms is represented in figure below, therefore, once being defined in a certain Xiang Yi accompanying drawing, then it is not required in subsequent accompanying drawing
Which is further defined and is explained.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of novel permanent magnetic rotor, it is characterised in that include：Rotor core, rotor shaft, magnet steel, magnet steel protective case, short circuit
Ring, fastening nut and grounding carbon brush, wherein：
The rotor core is set in outside the rotor shaft, and the magnet steel is set in outside the rotor core, and the magnet steel is protected
Sheath is set in outside the magnet steel, and the two ends of the magnet steel protective case are respectively arranged with end cap；The rotor shaft two ends difference
Dismountable short-circuited conducting sleeve is arranged with, the short-circuited conducting sleeve is arranged on the end cap two ends, and the short-circuited conducting sleeve passes through the fastening nut
Fix with the rotor shaft；The grounding carbon brush be that the rotor shaft is connected, for eliminating shaft current.
2. novel permanent magnetic rotor according to claim 1, it is characterised in that the rotor shaft two ends are provided with outer spiral shell
Line, the short-circuited conducting sleeve inwall are provided with the internal thread matched with the external screw thread, the short-circuited conducting sleeve by the internal thread and
External screw thread coordinates the two ends for being set in the rotor shaft.
3. novel permanent magnetic rotor according to claim 1, it is characterised in that set between the short-circuited conducting sleeve and the rotor shaft
It is equipped with sealing ring.
4. novel permanent magnetic rotor according to claim 3, it is characterised in that the sealing ring is fluororubber O-type ring.
5. novel permanent magnetic rotor according to claim 1, it is characterised in that the novel permanent magnetic rotor adopts duplicate removal mode
Realize dynamic balancing.
6. novel permanent magnetic rotor according to claim 1, it is characterised in that the magnet steel protective case is prefabricated Thin Stainless Steel
Plate.
7. novel permanent magnetic rotor according to claim 1, it is characterised in that the grounding carbon brush be arranged on it is described it is new forever
The drive end or anti-drive end of magnet rotor.
8. novel permanent magnetic rotor according to claim 1, it is characterised in that the short-circuited conducting sleeve is connected with the magnet steel,
For suppressing the mechanical oscillation of the novel permanent magnetic rotor.
9. novel permanent magnetic rotor according to claim 1, it is characterised in that the short-circuited conducting sleeve is copper ring.
10. a kind of motor, it is characterised in that including the novel permanent magnetic rotor described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611148622.4A CN106533009B (en) | 2016-12-13 | 2016-12-13 | A kind of p-m rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611148622.4A CN106533009B (en) | 2016-12-13 | 2016-12-13 | A kind of p-m rotor and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106533009A true CN106533009A (en) | 2017-03-22 |
| CN106533009B CN106533009B (en) | 2018-11-23 |
Family
ID=58343277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611148622.4A Active CN106533009B (en) | 2016-12-13 | 2016-12-13 | A kind of p-m rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106533009B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245451A (en) * | 2018-11-29 | 2019-01-18 | 成都先进功率半导体股份有限公司 | A kind of motor disassembling fixture and method for dismounting |
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| CN102510145A (en) * | 2011-11-03 | 2012-06-20 | 中国石油天然气股份有限公司 | Force-dividing rotor of underground cylindrical linear motor |
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| CN205489858U (en) * | 2016-01-28 | 2016-08-17 | 宁波安信数控技术有限公司 | Rotor structure of built -in permanent magnet motor |
| CN205647076U (en) * | 2016-03-17 | 2016-10-12 | 成都华川电装有限责任公司 | Brushless motor rotor |
| CN206226155U (en) * | 2016-12-13 | 2017-06-06 | 江苏瑞斯曼节能技术有限公司 | A kind of novel permanent magnetic rotor and motor |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202103502U (en) * | 2011-07-06 | 2012-01-04 | 奉化市溪口名鑫电机科技有限公司 | Brushless motor rotor with sheath |
| CN102290896A (en) * | 2011-08-22 | 2011-12-21 | 无锡杰尔压缩机有限公司 | Fixed structure of high-speed motor magnetic tile |
| CN102510145A (en) * | 2011-11-03 | 2012-06-20 | 中国石油天然气股份有限公司 | Force-dividing rotor of underground cylindrical linear motor |
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| CN205489858U (en) * | 2016-01-28 | 2016-08-17 | 宁波安信数控技术有限公司 | Rotor structure of built -in permanent magnet motor |
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| CN206226155U (en) * | 2016-12-13 | 2017-06-06 | 江苏瑞斯曼节能技术有限公司 | A kind of novel permanent magnetic rotor and motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245451A (en) * | 2018-11-29 | 2019-01-18 | 成都先进功率半导体股份有限公司 | A kind of motor disassembling fixture and method for dismounting |
| CN109245451B (en) * | 2018-11-29 | 2019-07-19 | 成都先进功率半导体股份有限公司 | A kind of motor disassembling fixture and method for dismounting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106533009B (en) | 2018-11-23 |
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Effective date of registration: 20230506 Address after: Zhashang village, Xinjian Town, Yixing City, Wuxi City, Jiangsu Province Patentee after: Wuxi Ruizhu Energy Saving Technology Co.,Ltd. Address before: 215000 West Side of 9th Floor, R&D Building, China Automotive Parts Industry Base, Weitang Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: JIANGSU RISEMAN ENERGY CONSERVATION TECH CO.,LTD. |