CN107872108A - Motor and its rotor - Google Patents
Motor and its rotor Download PDFInfo
- Publication number
- CN107872108A CN107872108A CN201610844809.1A CN201610844809A CN107872108A CN 107872108 A CN107872108 A CN 107872108A CN 201610844809 A CN201610844809 A CN 201610844809A CN 107872108 A CN107872108 A CN 107872108A
- Authority
- CN
- China
- Prior art keywords
- lamination
- core body
- rotor
- bearing
- central opening
- 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
- 238000003475 lamination Methods 0.000 claims abstract description 63
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic 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
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- 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
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
-
- 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
-
- 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
-
- 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
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Disclosure motor and its rotor.The middle part of multiple first laminations of axial one end of rotor core has central opening, and armature spindle passes through central opening with not contacting the first lamination.Rotor bearing is at least partially situated in the central opening of the first lamination.Rotor has the space that can accommodate bearing.Light-duty and miniaturization product can be produced according to the scheme of the application.
Description
Technical field
The application is related to motor and its rotor, more particularly to the technology for the core body for forming rotor is superimposed by multiple laminations.
Background technology
Motor is widely used in electrical equipment or various machineries and is used as power source.Motor includes the parts such as housing, stator and rotor,
Stator is fixed on housing, and multiple ferromagnetic laminates are superimposed the core body to form rotor, with bearings rotor on housing.However, by
In the demand of the performances such as desired driving torque, the size of the part such as bearing and rotor must be sufficiently large, therefore causes to be difficult contracting
The overall dimensions of small machine, it is difficult to meet the requirement of motor miniaturization.
Therefore, it is necessary to improve to overcome technical problem present in prior art.
The content of the invention
The application mainly solves the problems, such as motor miniaturization.
In order to solve the above technical problems, one side the application provides rotor, it includes core body and is fixed in the core body
Armature spindle, the core body includes being superimposed multiple laminations for being fixed together vertically, and the multiple lamination includes multiple first
Lamination, first lamination are located at the first end in the axial both ends of the core body, and the middle part of each first lamination has
The central opening penetrated vertically, the armature spindle pass through the central opening with not contacting first lamination.
Another aspect the application provides motor, and it includes housing, stator, bearing and foregoing rotor, and the stator is fixed
In the housing, the bearing is installed on the housing, and the armature spindle of the rotor can be relative to the housing freely
It is pivotally mounted on the bearing, the bearing is at least partially situated in the central opening of first lamination.
Because the first lamination has central opening, it not only reduces the quality of the first lamination, and allows its of motor
He enters in the central opening and forms compact arrangement part.Even if bearing rotor is also will not interfere with into central opening
Operating.Therefore, motor can carry out arrangement closely in the axial direction.
Brief description of the drawings
The detailed description of detailed description below is referred to reference to accompanying drawing, the application will be more fully appreciated.Wherein：
Fig. 1 is shown according to a kind of schematic cross-sectional view of the motor of embodiment of the application；
Fig. 2 shows the schematic diagram of the rotor core of motor shown in Fig. 1；
Fig. 3 shows the elevational schematic view of the rotor core of motor shown in Fig. 1；
Fig. 4 shows the schematic cross-sectional view of the rotor core along line A-A shown in Fig. 3；
Fig. 5 shows the schematic diagram of the first lamination of core body shown in Fig. 2；
Fig. 6 shows the schematic diagram of the second lamination of core body shown in Fig. 2；And
Fig. 7 shows the schematic diagram of the 3rd lamination of core body shown in Fig. 2.
Embodiment
The embodiment of the application is described in detail below in conjunction with the accompanying drawings.
Refer to shown in Fig. 1, housing 3, stator 4, rotor are included according to a kind of motor 100 of embodiment of the application
10 and clutch shaft bearing 51 and second bearing 52.Stator 4 is fixed on housing 3, and clutch shaft bearing 51 and second bearing 52 are installed on housing 3
Between rotor 10.In embodiment as depicted, clutch shaft bearing 51 and second bearing 52 are ball bearing.
Housing 3 includes pedestal 31 and lid 32, and pedestal 31 is stamped and formed out top by sheet metal has the container of opening, extremely
Few most of core body 1 is located in pedestal 31.In embodiment as shown in Figure 1, the iron core of whole stators 4 and rotor 10
All it is contained in pedestal 31, that is to say, that core body 1 is all contained in pedestal 31.The bodily form of Sheet Metal Forming Technology one is passed through in the bottom of pedestal 31
Into with first bearing seat 36, first bearing seat 36 be stamped technique from bottom to pedestal 31 inside be drawn and formed, pedestal 31
Bottom is internally recessed by outside, therefore the bottom of pedestal 31 will not increase the outside rear sight of axle because first bearing seat 36 is set
It is very little.Clutch shaft bearing 51 is installed in first bearing seat 36.Lid 32 is manufactured by die casting or injection molding, and lid 32 is matched with
In the opening of pedestal 31.Second bearing seat 37 is set through the middle part of lid 32, second bearing 52 is installed on the second axle of lid 32
In bearing 37, armature spindle 2 can be freely pivotally installed on relative to housing 3 on two bearings 51,52, and the rotor of rotor 10
Axle 2 extends out through lid 32, can outputting rotary power from the armature spindle 2.
Please refer to shown in Fig. 2 to 7, rotor 10 includes core body 1 and the armature spindle 2 being fixed in core body 1, core body 1 wrap
Include and be superimposed multiple first laminations 11 being fixed together, multiple second laminations 12 and the 3rd lamination 13 vertically.In core body 1
On be molded to form secure component 14 to cover molding mode, secure component 14 include at least two integrally formed end blocks 141 and
Multiple connection straps 142, the axial both ends of core body 1 have at least one end block 141 respectively, and each end block 141 is at least connected with two
Individual connection strap 142, in embodiment as depicted, each end block 141 connects whole connection straps 142.Each connect
Narrow bars 142 connect an end block 141 respectively through whole laminations 11,12,13 and both ends.Core body 1 sets multiple accepting grooves, each
Accepting groove runs through whole laminations 11,12,13, installs permanent magnet 15 in each accepting groove, each connection strap 142 at least passes through
Wear an accepting groove.
Running through in embodiment as depicted, in each accepting groove has three connection straps 142.It is for example, each
Accepting groove runs through lamination 11,12,13 at pocket 105, and the pocket 105 of each lamination 11,12,13 is in elongated, and it includes
Two long sides being substantially parallel to one another.Two connection straps 142 are close to longitudinal both ends of pocket 105, also a connection strap
142 are located at the middle part of a long side close to rotating shaft.The one of foot position in the embodiment shown in Fig. 5 to Fig. 7
A magnet 15 is schematically illustrated in individual pocket 105, and three connection straps in pocket 105 are indicated with dotted line
142 position.In other embodiments, the number of connection strap can also be reduced, for example, only close to pocket
Two connection straps 142 at 105 longitudinal both ends, without a connection strap positioned at the middle part of a long side close to rotating shaft
142。
The also integrally formed flexure strip 106 of second lamination 12, the distal end interference fit magnet 15 of flexure strip 106.As shown in the figure
Ground, groove is set at the middle part of a long side of the close rotating shaft of pocket 105, flexure strip 106, flexure strip are set in the groove
There is gap, flexure strip 106 has the freedom of activity when installing magnet 15, is formed in injection tight between 106 both sides and groove
Gu during part 14, the plastics of flowing can fill the gap between the both sides of flexure strip 106 and groove, and form connection strap after hardening
142.Flexure strip 106 can be set in each pocket 105, only folded second in embodiment as depicted
Two symmetric positions in six pockets 105 of piece 12 set flexure strip 106.By periodically changing second in superposition
The angle of lamination 12 so that every 4 laminations 12 have a flexure strip 106 to touch magnet 15.On the one hand such arrangement simplifies
The structure of second lamination 12, on the other hand, magnet 15 need not contact with the flexure strip 106 of each lamination 12,
Under the conditions of partial flexure strip 106 ensure that the fixed force to magnet 15, and so that need not be too big when installing magnet 15
Insertion force.
Nine first laminations 11 are located at the first end in the axial both ends of core body 1（As shown in Figure 4, under first end is
End）, the middle part for penetrating the first lamination 11 vertically is provided with central opening 111, and armature spindle 2 does not contact the ground of the first lamination 11 and passed through
Central opening 111.Each second lamination 12 has multiple material-dropping holes 121, and material-dropping hole 121 eliminates the material of lamination 12 and reduced
The quality of rotor.Material-dropping hole 121 between armature spindle 2 and magnet 15, and material-dropping hole 121 respectively with armature spindle 2 and magnet 15
Separately.The radial dimension R1 of material-dropping hole 121 is more than 0.4 times of radial distance R2 between armature spindle 2 and magnet 15, i.e. R1>
0.4*R2.The lamination majority of core body 1 is second lamination 12, and the lamination 12,13 of at least 90% quantity is second in addition to the first lamination 11
Lamination 12.3rd lamination 13 is located at the second end in the axial both ends of core body 1（Upper end i.e. as shown in Figure 4）, the 3rd lamination 13
Cover the material-dropping hole 121 of second lamination 12 at least in part with less hole.
Clutch shaft bearing 51 is positioned partially in the central opening 111 of the first lamination 11, and the external diameter of clutch shaft bearing 51 is less than
The central opening 111 of first lamination 11.That is, clutch shaft bearing 51 partly overlaps with core body 1 in axial location, but first axle
Hold 51 and do not contact core body 1.Further, first bearing seat 36 is also positioned partially in the central opening 111 of the first lamination 11,
And its external diameter is less than the central opening 111 of the first lamination 11.Namely, core body 1 does not contact clutch shaft bearing not only in the axial direction
31 and do not contact first bearing seat 36.Therefore motor 100 has small axial dimension.
Above embodiment is merely to illustrate the application, and is not the limitation to the application, relevant technical field
Those of ordinary skill, in the case where not departing from scope of the present application, it can also make a variety of changes and modification.Therefore it is all etc.
Same technical scheme falls within the category of the application, and the scope of patent protection of the application should be defined by the claims.
Claims (10)
1. rotor（10）, it includes core body（1）And it is fixed on the core body（1）In armature spindle（2）, the core body（1）Including
The multiple laminations being fixed together are superimposed vertically（11、12、13）, it is characterised in that the multiple lamination（11、12、13）Bag
Include multiple first laminations（11）, first lamination（11）Positioned at the core body（1）Axial both ends in first end, Mei Gesuo
State the first lamination（11）Middle part there is the central opening that penetrates vertically（111）, the armature spindle（2）Described first is not contacted
Lamination（11）Ground passes through the central opening（111）.
2. rotor according to claim 1（10）, it also includes being formed at the core body to cover molding mode injection（1）On
Secure component（14）, the secure component（14）Including at least two integrally formed end blocks（141）And multiple connection straps
（142）, the core body（1）Axial both ends there is at least one end block respectively（141）, each connection strap
（142）Through the multiple lamination（11、12、13）And both ends connect an end block respectively（141）.
3. rotor according to claim 2（10）, wherein, the core body（1）Multiple accepting grooves are set, each accepting groove
Through multiple laminations（11、12、13）, permanent magnet each is installed in the accepting groove（15）, each connection
Bar（142）At least run through an accepting groove.
4. rotor according to claim 3（10）, wherein, each accepting groove runs through the lamination（11、12、13）And divide
Not in the lamination（11、12、13）It is upper to form elongated pocket（105）, the connection strap（142）Close to the pocket
（105）Longitudinal both ends.
5. rotor according to claim 4（10）, wherein, at least partly described pocket（105）Long side in the middle part of set
Flexure strip（106）, the flexure strip（106）It is integrally formed at the lamination（11、12、13）And its distal end is interference fitted the magnetic
Body（15）.
6. rotor according to claim 1（10）, wherein, the multiple lamination（11、12、13）Including multiple second laminations
（12）, each second lamination（12）With multiple material-dropping holes（121）, the material-dropping hole（121）It is spaced on described turn
Sub- axle（2）With the magnet（15）Between, the material-dropping hole（121）Radial dimension（R1）More than the armature spindle（2）With institute
State magnet（15）Between radial distance（R2）0.4 times.
7. rotor according to claim 1（10）, wherein, except first lamination（11）At least 90% quantity is described more outside
Individual lamination（12、13）For second lamination（12）.
8. motor（100）, it is characterised in that it includes housing（3）, stator（4）, bearing（51）And according in claim 1 to 7
Rotor described in any one（10）, the stator（4）And the bearing（51）It is installed on the housing（3）, the rotor（10）
The armature spindle（2）Can be relative to the housing（3）Freely it is pivotally mounted to the bearing（51）On, the bearing
（51）It is at least partially situated at first lamination（11）The central opening（111）In.
9. motor according to claim 8（100）, wherein, the housing（3）Including pedestal（31）And lid（32）, it is described
Pedestal（31）Being stamped and formed out top by sheet metal has the container of opening, and integrally formed has bearing block（36）, at least
Most of core body（1）Positioned at the pedestal（31）In, the lid（32）It is matched with the pedestal（31）Opening on, institute
State bearing（51）It is installed on the bearing block（36）In.
10. motor according to claim 8（100）, wherein, the bearing block（36）It is folded to be at least partially situated at described first
Piece（11）The central opening（111）In.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610844809.1A CN107872108A (en) | 2016-09-23 | 2016-09-23 | Motor and its rotor |
| DE102017216548.0A DE102017216548A1 (en) | 2016-09-23 | 2017-09-19 | Electric motor and its rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610844809.1A CN107872108A (en) | 2016-09-23 | 2016-09-23 | Motor and its rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107872108A true CN107872108A (en) | 2018-04-03 |
Family
ID=61564105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610844809.1A Pending CN107872108A (en) | 2016-09-23 | 2016-09-23 | Motor and its rotor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107872108A (en) |
| DE (1) | DE102017216548A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008092748A1 (en) * | 2007-02-01 | 2008-08-07 | Robert Bosch Gmbh | Electrical machine |
| CN101490934A (en) * | 2005-12-08 | 2009-07-22 | A.O.史密斯公司 | Rotor assembly for an electric machine including a vibration damping member and method of manufacturing same |
| CN101553971A (en) * | 2006-08-14 | 2009-10-07 | 博泽汽车部件有限公司及两合公司,乌茨堡 | Rotor for an electric motor |
| CN202602439U (en) * | 2012-05-19 | 2012-12-12 | 浙江利欧股份有限公司 | Novel motor with compact structure |
| CN105553127A (en) * | 2016-02-16 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor, motor, compressor and fabrication method of motor rotor |
| CN206164235U (en) * | 2016-09-23 | 2017-05-10 | 博世汽车部件(长沙)有限公司 | Motor and rotor thereof |
-
2016
- 2016-09-23 CN CN201610844809.1A patent/CN107872108A/en active Pending
-
2017
- 2017-09-19 DE DE102017216548.0A patent/DE102017216548A1/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101490934A (en) * | 2005-12-08 | 2009-07-22 | A.O.史密斯公司 | Rotor assembly for an electric machine including a vibration damping member and method of manufacturing same |
| CN101553971A (en) * | 2006-08-14 | 2009-10-07 | 博泽汽车部件有限公司及两合公司,乌茨堡 | Rotor for an electric motor |
| WO2008092748A1 (en) * | 2007-02-01 | 2008-08-07 | Robert Bosch Gmbh | Electrical machine |
| CN202602439U (en) * | 2012-05-19 | 2012-12-12 | 浙江利欧股份有限公司 | Novel motor with compact structure |
| CN105553127A (en) * | 2016-02-16 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor, motor, compressor and fabrication method of motor rotor |
| CN206164235U (en) * | 2016-09-23 | 2017-05-10 | 博世汽车部件(长沙)有限公司 | Motor and rotor thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017216548A1 (en) | 2018-03-29 |
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