CN109167470A - A kind of rotor - Google Patents
A kind of rotor Download PDFInfo
- Publication number
- CN109167470A CN109167470A CN201811276816.1A CN201811276816A CN109167470A CN 109167470 A CN109167470 A CN 109167470A CN 201811276816 A CN201811276816 A CN 201811276816A CN 109167470 A CN109167470 A CN 109167470A
- Authority
- CN
- China
- Prior art keywords
- iron
- rotor core
- balance ring
- rotor
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 123
- 229910052742 iron Inorganic materials 0.000 claims abstract description 61
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229920001342 Bakelite® Polymers 0.000 claims description 4
- 239000004637 bakelite Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000004907 flux Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000004512 die casting Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- -1 i.e. Chemical compound 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/04—Balancing means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of rotors, it include a central spindle, a rotor core, two bearings and two iron-based balance rings, the rotor core, bearing and iron-based balance ring are set in the central spindle, several magnet are adhesively fixed in the rotor core, the bearing is respectively arranged on two sides of the rotor core and far from the rotor core, the iron-based balance ring is respectively arranged on two sides of the rotor core and is bonded with the rotor core, and the size of the iron-based balance ring does not cover the magnet.It replaces existing non-magnetic balance ring using iron-based balance ring, low manufacture cost and can effectively realize dynamic balancing；Simultaneously, since the size of iron-based balance ring does not cover magnet, i.e., iron-based balance ring is not contacted with magnet, when which is installed on brushless motor use, iron-based balance ring will not influence the main flux between the rotor and stator, so that motor good operating stability.
Description
Technical field
The present invention relates to brushless motor technical field more particularly to a kind of rotors.
Background technique
When rotor rotates, the centrifugal force generated because mass center deviates axis of rotation due to each micro- section of the factor all perpendicular to
Axis of rotation can synthesize centrifugal force system by the synthesis of power a small number of concentrated forces, and direction is still perpendicular to axis.Generally
It says, at least could represent original centrifugal force system with two concentrated forces being respectively acting on two cross sections, if the two
Concentrated force just forms couple, then original amount of unbalance can not be discovered and measure when rotor does not rotate；When rotation, power
It is even just to form Horizonal Disturbing and the vibration of rotor is caused to make rotor by unnecessary so as to cause the oscillation crosswise of rotor
Dynamic loading, this be unfavorable for rotor normal operation.
Therefore, in motor manufacturing or maintenance process, motor dynamic balancing is one of very important process, most of rotors
It need to carry out dynamic balancing.Currently, the duplicate removal mechanism of common brushless dc rotating machine rotor is the balance ring of non-magnetic material,
Balance ring is respectively pressed into rotor both ends by the balance ring as made of copper-based, stainless steel etc., and test rotor-support-foundation system is unbalanced
Behind position and size, make deduplication operation in balance ring, reach the accuracy class of permission, the density of these balance rings is higher
And it is non-magnetic, will not influence the main flux of electric system, motor can work normally, still, copper-based, stainless steel material cost compared with
It is high and need more complex production technology, such as machine finishing, powder compacting sintering, casting, die casting, make entire rotor system
Manufacturing cost of uniting is higher.
In consideration of it, needing to carry out certain improvement to the duplicate removal device of existing rotor, it is low to obtain a kind of manufacturing cost
And it can effectively carry out dynamically balanced rotor.
Summary of the invention
It is low and can effectively carry out dynamically balanced electricity technical problem to be solved by the present invention lies in a kind of manufacturing cost is provided
Machine rotor.
In order to solve the above-mentioned technical problem, the invention discloses following technical solutions.A kind of rotor includes an axis
Core, a rotor core, two bearings and two iron-based balance rings, the rotor core, bearing and iron-based balance ring are set in described
In central spindle, several magnet are adhesively fixed in the rotor core, the bearing is respectively arranged on two sides of the rotor core
And far from the rotor core, the iron-based balance ring be respectively arranged on two sides of the rotor core and with the rotor core
Fitting, and the size of the iron-based balance ring does not cover the magnet.
Its further technical solution are as follows: interval, which outwardly protrudes, on the periphery of the iron-based balance ring is formed with several salient points,
The salient point is pressed on the end face of the magnet.
Its further technical solution are as follows: four blocks of magnet are fixed in the rotor core, in the iron-based balance ring
Eight salient points are formed with, press two salient points on each magnet.
Its further technical solution are as follows: the contact area of each magnet and the salient point is the total of the end face of the magnet
The 1/8~1/3 of area.
Its further technical solution are as follows: a non-magnetic pressure is also folded between the rotor core and the iron-based balance ring
The radius size of piece, the non-magnetic tabletting is matched with the rotor core.
Its further technical solution are as follows: the non-magnetic tabletting is a bakelite piece, a stainless steel tabletting or a sheet rubber.
Its further technical solution an are as follows: side of the rotor core is further fixed on a cooling wind blade.
The method have the benefit that: the rotor includes a central spindle, a rotor core, two bearings and two iron
Base balance ring, rotor core, bearing and iron-based balance ring are set in central spindle, and several magnetic are adhesively fixed in rotor core
Iron, bearing are respectively arranged on two sides of rotor core and far from rotor cores, and iron-based balance ring is respectively arranged on the two of rotor core
It side and is bonded with rotor core, and the size of iron-based balance ring does not cover magnet.It is replaced existing using iron-based balance ring
Non-magnetic balance ring, low manufacture cost and can effectively realize dynamic balancing；Simultaneously as the size of iron-based balance ring does not cover magnetic
Iron, i.e., iron-based balance ring are not contacted with magnet, which is installed on brushless motor in use, iron-based balance ring will not shadow
The main flux between the rotor and stator is rung, so that motor good operating stability.
Detailed description of the invention
Fig. 1 is the structure sectional view of one embodiment of the invention；
Fig. 2 is the left view of one embodiment of the invention；
Fig. 3 is the iron-based gimbals structure enlarged drawing of one embodiment of the invention；
Fig. 4 is the structure sectional view that non-magnetic tabletting is equipped in one embodiment of the invention；
Fig. 5 is the structure sectional view of another embodiment of the present invention；
Fig. 6 is the left view of another embodiment of the present invention；
Fig. 7 is the iron-based gimbals structure enlarged drawing of another embodiment of the present invention.
Specific embodiment
It is further to technical solution of the present invention below with reference to schematic diagram in order to more fully understand technology contents of the invention
It introduces and illustrates, but not limited to this.
As shown in Figures 1 to 7, in the present invention, which includes a central spindle 1, a rotor core 2, two bearings 4
And two iron-based balance rings 5, rotor core 2, bearing 4 and iron-based balance ring 5 are set in central spindle 1, bonding is solid in rotor core 2
Surely there are several magnet 3, bearing 4 is respectively arranged on two sides of rotor core 2 and far from rotor core 2, and iron-based balance ring 5 is set respectively
In rotor core 2 two sides and be bonded with rotor core 2, and the size of iron-based balance ring 5 does not cover magnet 3.
In the present invention, which is substituted existing non-magnetic balance ring, wherein iron-based balance ring 5 is usually adopted
It is stacked with Dies ' Blanking or die casting forms, compared to balance ring made of copper-based, stainless steel material, manufacturing process is more simple
Single, manufacturing cost is lower.Meanwhile so that the size of iron-based balance ring 5 is not covered magnet 3 by structure design, in this way, the motor turns
Son is applied to the stator of brushless motor in use, iron-based balance ring 5 will not influence the main flux between the rotor and stator,
Motor dynamic balancing can be effectively realized again, so that motor the operation is stable.
In the present embodiment, as shown in Figures 1 to 3, iron-based balance ring 5 is annular in shape, and radius is less than magnet 3 apart from central spindle
The distance of 1 central point causes leakage field in this way, it will not cover magnet 3 when iron-based balance ring 5 is installed on central spindle 1.
In another embodiment, as shown in Figures 5 to 7, four blocks of magnet 3, iron-based balance ring 5 are fixed in rotor core 2
Interval, which outwardly protrudes, on periphery is formed with eight salient points 50, and two salient points 50, each magnet 3 and salient point 50 are pressed on each magnet 3
Contact area be the magnet 3 end face the gross area 1/8~1/3.In this way, even if iron-based balance ring 5 is with magnet 3, there are one
Fixed contact, but since contact area is smaller, iron-based balance ring 5 does not influence the main flux between rotor and stator.
Certainly, in some other embodiment, more or fewer magnet 3, correspondingly, iron are fixed in rotor core 2
Interval, which outwardly protrudes, on the periphery of base balance ring 5 is formed with several salient points 50, and salient point 50 is pressed on the end face of magnet 3, in general,
The contact area of each magnet 3 and salient point 50 is the 1/8~1/3 of the gross area of the end face of the magnet 3.
In addition, the motor for being equipped with the rotor may be applied to certain environment for being easy to produce the magnetisable materials such as iron filings
In, such as angle grinder, when operation, being ground iron workpiece has iron filings generation, these iron filings may be adsorbed onto the magnet 3 of rotor
On, motor is influenced for a long time to be worked normally, in order to avoid the appearance of this situation, in the present embodiment, and as shown in Figure 1 and Figure 4, rotor
A non-magnetic tabletting 7, the radius size and rotor core 2 of non-magnetic tabletting 7 are also folded between iron core 2 and iron-based balance ring 5
Matching.In this way, tabletting can cover in the magnet 3 in rotor core 2, so that the magnetisable material in environment is difficult to contact with magnet 3
And be adsorbed, avoiding, which influences motor, runs well.It certainly, can nothing in some environment that will not generate the magnetisable materials such as iron filings
It need to the non-magnetic tabletting 7 of sandwiched between rotor core 2 and iron-based balance ring 5.
Normally, non-magnetic tabletting 7 is a bakelite piece, a stainless steel tabletting or a sheet rubber, bakelite piece, stainless steel pressure
The magnetic conductions ability such as piece and sheet rubber is weak, the magnet 3 in rotor core 2 will not be caused to generate leakage field, while can effectively prevent the external world
Magnetisable material contacted with magnet 3 and cause leakage field, ensure that the normal operation of motor.
In addition, temperature can be increased constantly when rotor runs at high speed, long-time high temperature will cause the damage of motor,
In order to facilitate heat dissipation, as shown in Figure 1 and Figure 5, a side of rotor core 2 is further fixed on a cooling wind blade 6, cooling wind blade 6 with
The rotation of central spindle 1 and rotate, so that ground is that rotor and stator coil radiate.
In the solution of the present invention, which, which is usually assemblied in brushless motor, is used, and is taken using iron-based balance ring 5
For existing non-magnetic balance ring, the manufacturing cost for significantly reducing balance ring is low；Meanwhile the size of iron-based balance ring 5 is not
Magnet 3 is covered, i.e., iron-based balance ring 5 is not contacted with magnet 3, which is installed on brushless motor in use, iron-based flat
Weighing apparatus ring 5 will not influence the main flux between the rotor and stator, so that motor good operating stability, passes through material and structure
Cooperation change so that the iron-based balance ring 5 is to realize the dynamic balancing of electronics rotor, and can guarantee the steady operation of motor, it is full
The demand of foot production.
It is that above-mentioned preferred embodiment should be regarded as application scheme embodiment for example, all with application scheme thunder
Same, approximate or technology deduction, replacement, improvement for making based on this etc., are regarded as the protection scope of this patent.
Claims (7)
1. a kind of rotor, which is characterized in that include a central spindle, a rotor core, two bearings and two iron-based balance rings, institute
It states rotor core, bearing and iron-based balance ring to be set in the central spindle, several magnetic is adhesively fixed in the rotor core
Iron, the bearing are respectively arranged on two sides of the rotor core and far from the rotor core, the iron-based balance ring difference
Set on the rotor core two sides and be bonded with the rotor core, and the size of the iron-based balance ring do not cover it is described
Magnet.
2. rotor according to claim 1, which is characterized in that be spaced convex on the periphery of the iron-based balance ring
It is formed with several salient points out, the salient point is pressed on the end face of the magnet.
3. rotor according to claim 2, which is characterized in that be fixed with four blocks of magnetic in the rotor core
Iron is formed with eight salient points in the iron-based balance ring, presses two salient points on each magnet.
4. rotor according to claim 2 or 3, which is characterized in that the contact of each magnet and the salient point
Area is the 1/8~1/3 of the gross area of the end face of the magnet.
5. rotor according to claim 1 or 2, which is characterized in that the rotor core and the iron-based balance ring
Between be also folded with a non-magnetic tabletting, the radius size of the non-magnetic tabletting is matched with the rotor core.
6. rotor according to claim 5, which is characterized in that the non-magnetic tabletting is a bakelite piece, one stainless
Steel tabletting or a sheet rubber.
7. rotor according to claim 1 or 2, which is characterized in that a side of the rotor core is further fixed on
One cooling wind blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811276816.1A CN109167470A (en) | 2018-10-30 | 2018-10-30 | A kind of rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811276816.1A CN109167470A (en) | 2018-10-30 | 2018-10-30 | A kind of rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109167470A true CN109167470A (en) | 2019-01-08 |
Family
ID=64876120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811276816.1A Pending CN109167470A (en) | 2018-10-30 | 2018-10-30 | A kind of rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109167470A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5256037A (en) * | 1992-06-24 | 1993-10-26 | Chatelain Michael R | Self balancing motor |
| CN2483885Y (en) * | 2001-05-15 | 2002-03-27 | 建准电机工业股份有限公司 | Balance ring of motor |
| TW200535342A (en) * | 2004-04-29 | 2005-11-01 | Sunonwealth Electr Mach Ind Co | Rotational balance structure for a motor |
| CN1866674A (en) * | 2005-05-18 | 2006-11-22 | 建准电机工业股份有限公司 | Motor structure |
| CN102537186A (en) * | 2012-01-31 | 2012-07-04 | 江南大学 | Magnetorheological fluid balance ring |
| DE102012100782A1 (en) * | 2012-01-31 | 2013-08-01 | Hofmann Mess- Und Auswuchttechnik Gmbh & Co. Kg | Apparatus and method for balancing rotors |
| CN203365063U (en) * | 2013-01-29 | 2013-12-25 | 深圳大学 | Online dynamic balance compensation device for high-speed motorized spindles |
| CN203416062U (en) * | 2013-08-02 | 2014-01-29 | 宁波安信数控技术有限公司 | Permanent magnetic motor rotor structure |
| CN105827037A (en) * | 2016-03-17 | 2016-08-03 | 成都华川电装有限责任公司 | Brushless motor rotor |
| 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 |
| WO2016207023A1 (en) * | 2015-06-25 | 2016-12-29 | C. & E. Fein Gmbh | Rotor for an electronically commutated electric motor and method for producing such a rotor |
| CN106787303A (en) * | 2016-12-23 | 2017-05-31 | 威灵（芜湖）电机制造有限公司 | Rotor assembly and the direct current generator with it |
| CN106787304A (en) * | 2016-12-29 | 2017-05-31 | 广州凯耀资产管理有限公司 | A kind of medium-to-high grade motor component structure |
| CN107565725A (en) * | 2017-09-14 | 2018-01-09 | 哈尔滨高精电机技术有限公司 | A kind of flux compensation formula Surface Mount oblique pole rotor structure |
| CN208862682U (en) * | 2018-10-30 | 2019-05-14 | 东昌电机(深圳)有限公司 | A kind of rotor |
-
2018
- 2018-10-30 CN CN201811276816.1A patent/CN109167470A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5256037A (en) * | 1992-06-24 | 1993-10-26 | Chatelain Michael R | Self balancing motor |
| CN2483885Y (en) * | 2001-05-15 | 2002-03-27 | 建准电机工业股份有限公司 | Balance ring of motor |
| TW200535342A (en) * | 2004-04-29 | 2005-11-01 | Sunonwealth Electr Mach Ind Co | Rotational balance structure for a motor |
| CN1866674A (en) * | 2005-05-18 | 2006-11-22 | 建准电机工业股份有限公司 | Motor structure |
| CN102537186A (en) * | 2012-01-31 | 2012-07-04 | 江南大学 | Magnetorheological fluid balance ring |
| DE102012100782A1 (en) * | 2012-01-31 | 2013-08-01 | Hofmann Mess- Und Auswuchttechnik Gmbh & Co. Kg | Apparatus and method for balancing rotors |
| CN203365063U (en) * | 2013-01-29 | 2013-12-25 | 深圳大学 | Online dynamic balance compensation device for high-speed motorized spindles |
| CN203416062U (en) * | 2013-08-02 | 2014-01-29 | 宁波安信数控技术有限公司 | Permanent magnetic motor rotor structure |
| WO2016207023A1 (en) * | 2015-06-25 | 2016-12-29 | C. & E. Fein Gmbh | Rotor for an electronically commutated electric motor and method for producing such a rotor |
| 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 |
| CN105827037A (en) * | 2016-03-17 | 2016-08-03 | 成都华川电装有限责任公司 | Brushless motor rotor |
| CN106787303A (en) * | 2016-12-23 | 2017-05-31 | 威灵（芜湖）电机制造有限公司 | Rotor assembly and the direct current generator with it |
| CN106787304A (en) * | 2016-12-29 | 2017-05-31 | 广州凯耀资产管理有限公司 | A kind of medium-to-high grade motor component structure |
| CN107565725A (en) * | 2017-09-14 | 2018-01-09 | 哈尔滨高精电机技术有限公司 | A kind of flux compensation formula Surface Mount oblique pole rotor structure |
| CN208862682U (en) * | 2018-10-30 | 2019-05-14 | 东昌电机(深圳)有限公司 | A kind of rotor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200211 Address after: 518000 Guangtian green decoration industrial base Park, building 2, No. 86 Xiangyang Road, Yanchuan community, Yanluo street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: Dongxingchang Technology (Shenzhen) Co., Ltd Address before: 518000, Shenzhen, Guangdong, Baoan District manhole street, Whampoa community, hung Tian Road, hung Tian, Jin Yuan Industrial Zone, building D, A24 third Applicant before: DONGCHANG MOTOR (SHENZHEN) Co.,Ltd. |