CN105811618A - Rotor and motor - Google Patents
Rotor and motor Download PDFInfo
- Publication number
- CN105811618A CN105811618A CN201610292412.6A CN201610292412A CN105811618A CN 105811618 A CN105811618 A CN 105811618A CN 201610292412 A CN201610292412 A CN 201610292412A CN 105811618 A CN105811618 A CN 105811618A
- Authority
- CN
- China
- Prior art keywords
- rotor
- motor
- sheath
- stator core
- stator
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention belongs to the field of a motor, and discloses a rotor and the motor. The rotor comprises a rotor iron core, magnetic tiles and a sheath. The outer arcs of the magnetic tiles are in surface contact with the inner arc of the sheath. Two ends of the inner arcs of the magnetic tiles are equipped with empty slots. The motor comprises the rotor and a stator. According to the rotor and the motor, the outer arcs of the magnetic tiles is are surface contact with the inner arc of the sheath, therefore, the structure strength of the rotor is higher, and the anti-high speed centrifugal force of the rotor is higher. Through adoption of unequal distribution, the motor can obtain electromotive force with relatively high sine degree. An air gap which becomes bigger gradually from a middle part to two ends is formed between the pole shoe of the stator and the sheath of the rotor. The length of the air gap is changed in a sine trend. The sine degree of the electromotive force is improved. The integral structure strength of the motor is improved.
Description
Technical field
The present invention relates to technical field of motors, particularly relate to a kind of rotor and motor.
Background technology
Along with making constant progress of motor technology, also more and more higher for the reliability of motor and the requirement of structural strength, existing motor is as shown in Figure 1, it includes rotor 100 and stator 101, on rotor 100, wherein it is provided with magnetic shoe 102 and the sheath 103 being set in outside magnetic shoe 102, it is provided with air gap between rotor 100 and stator 101, the counter electromotive force higher for obtaining sine degree, the outer arc of magnetic shoe 102 would generally be designed with the inner arc radius unequal of sheath 103 (namely not concentric), making magnetic shoe outer arc and sheath inner arc is linear contact lay, to obtain better motor performance, as shown in Figure 2.
But the mode of above-mentioned linear contact lay is when high speed operation of motor, stress is concentrated on the line that sheath contacts with magnetic shoe, easily cause sheath deformation, there is the hidden danger come off, and the magnet of magnetic shoe is when high speed operation of motor, the problem that can occur under the influence of centrifugal force dispersing, cause that electric machine structure intensity is not enough, occur damaging, it is therefore desirable to design one both can guarantee that counter electromotive force sine degree was high, ensure that again the motor of enough structural strengths.
Summary of the invention
It is an object of the present invention to provide a kind of rotor, be the sheath deformation that linear contact lay causes, the problem come off to solve existing rotor magnetic shoe outer arc and sheath inner arc.
Another object of the present invention is to provide a kind of motor, to solve the problem that counter electromotive force sine degree is not high, structural strength is not enough.
For reaching this purpose, on the one hand, the present invention by the following technical solutions:
A kind of rotor, including rotor core, is arranged on the magnetic shoe outside rotor core, and is set in the sheath outside magnetic shoe, and the outer arc of described magnetic shoe is that face contacts with the inner arc of sheath, and the inner arc two ends of described magnetic shoe are provided with dead slot.
As preferably, the outer arc of described magnetic shoe and the inner arc of sheath are arranged concentrically.
As preferably, the inner arc two ends being arranged on magnetic shoe that described dead slot is symmetrical.
As preferably, described dead slot is arcuate structure or square structure.
On the other hand, the present invention is also by the following technical solutions:
A kind of motor, including above-mentioned rotor.
As preferably, also including stator, described stator includes stator core and is positioned at the multiple pole shoes inside stator core, and what described rotor was concentric is placed in stator core, is formed with the air gap become larger from centre to two ends between described pole shoe and described sheath.
As preferably, it is arcwall face that described pole shoe points to the one end at stator core center, and the center eccentric setting of the center of circle of described arcwall face and stator core makes described air gap become larger from centre to two ends.
As preferably, the center of circle of the arcwall face of multiple pole shoes is collectively forming circle, and the center of circle of described circle is arranged with the centres of stator core.
As preferably, described pole shoe points to the one end at stator core center and includes median surface and centrally located two ends and the inclined-plane being obliquely installed, and one end that described inclined-plane is not connected with median surface is centrally disposed away from stator core.
It is that face contacts that the rotor of the present invention passes through the outer arc of magnetic shoe and the inner arc of sheath, making rotor structure intensity higher, anti-high speed centrifugation power is higher, and the high speed being effectively prevented magnetic shoe magnet is dispersed, and it can be avoided that sheath deforms upon, strengthen the structural strength of rotor.And the inner arc two ends of magnetic shoe are provided with dead slot, it is possible to ensure that on overall magnetic circuit, gas length total value is unequal distribution, makes motor obtain the counter electromotive force that sine degree is higher.
The motor of the present invention adopts above-mentioned rotor and stator, and by being formed with, between the pole shoe and the sheath of rotor of stator, the air gap become larger from centre to two ends, can make gas length is sinusoidal variations trend, further increase the sine degree of counter electromotive force, and improve the overall construction intensity of motor.
Accompanying drawing explanation
Fig. 1 is the mounting structure schematic diagram of the rotor of motor in prior art of the present invention and stator；
Fig. 2 is the structural representation of prior art rotor of the present invention；
Fig. 3 is the structural representation of rotor described in the embodiment of the present invention 1；
Fig. 4 is the structural representation of the magnetic shoe of rotor described in the embodiment of the present invention 1；
Fig. 5 is the mounting structure schematic diagram of the rotor of motor in the embodiment of the present invention 2 and stator；
Fig. 6 is the structural representation of stator described in the embodiment of the present invention 2；
Fig. 7 is the I place enlarged diagram of Fig. 6 of the present invention；
Fig. 8 is the mounting structure schematic diagram of the rotor of motor in the embodiment of the present invention 3 and stator；
Fig. 9 is the structural representation of stator described in the embodiment of the present invention 3；
Figure 10 is II place's enlarged diagram of Fig. 9 of the present invention.
In figure:
1, rotor core；2, magnetic shoe；21, dead slot；3, sheath；4, stator core；5, pole shoe；51, median surface；52, inclined-plane；6, air gap；7, circle；10, rotor；20, stator；100, rotor；101, stator；102, magnetic shoe；103, sheath.
Detailed description of the invention
Technical scheme is further illustrated below in conjunction with accompanying drawing and by detailed description of the invention.
Embodiment 1:
Thering is provided a kind of rotor in the present embodiment, as it is shown on figure 3, this rotor includes rotor core 1, magnetic shoe 2 and sheath 3, wherein magnetic shoe 2 is provided with some, and the outside being arranged on rotor core 1 that its circumference is uniform, sheath 3 is then set in the outside of magnetic shoe 2.Above-mentioned magnetic shoe 2 includes outer arc and inner arc, wherein magnetic shoe 2 outer arc be that face contacts setting with the inner arc of sheath 3, to improve the structural strength of rotor.And when having the motor high-speed rotation of this rotor, due to the setting of face contact, sheath 3 will not be worn appearance deformation, it is to avoid the coming off of sheath 3.The setting of above-mentioned contact simultaneously also is able to make the anti-high speed centrifugation power of rotor higher, it is possible to the magnet being effectively prevented magnetic shoe 2 occurs to disperse at a high speed, improves the service life of rotor.
In the present embodiment, preferably, the inner arc of the outer arc of magnetic shoe 2 and sheath 3 is arranged concentrically, and the outer arc of magnetic shoe 2 is identical with the radius of the inner arc of sheath 3, and then to make the extrados of magnetic shoe 2 and the intrados of sheath 3 be the state of comprehensive engagement, in order to the better performance of the structural strength of raising rotor and anti-high speed centrifugation power.
The inner arc two ends of above-mentioned magnetic shoe 2 are provided with dead slot 21, concrete as shown in Figure 4, the inner arc two ends being arranged on magnetic shoe 2 of this dead slot 21 symmetry.In the present embodiment, above-mentioned dead slot 21 can be arcuate structure or square structure.Selecting in the present embodiment is arcuate structure, and concrete is arranged for minor arc structure so that the intrados of magnetic shoe 2 is rendered as three sections of arc structures so that the circular arc of magnetic shoe 2 interlude contacts with rotor core 1, forms gap between dead slot 21 and the rotor core 1 at two ends.Setting by this dead slot 21, it is possible to ensure that on the overall magnetic circuit of rotor, gas length total value is unequal distribution, makes the motor with this rotor obtain the counter electromotive force that sine degree is higher, to improve the performance of motor.
Embodiment 2:
The present embodiment provides a kind of motor, as it is shown in figure 5, this motor it include the rotor 10 described in embodiment 1 and stator 20, concentric being placed in stator 20 of this rotor 10.
Concrete, as shown in Figure 6, including stator core 4 and be positioned at the multiple pole shoes 5 inside stator core 4, what above-mentioned rotor 10 was concentric is placed in stator core 4 stator 20 in the present embodiment, said stator iron core 4 is cylindrical structure, and pole shoe 5 is similar to T-shaped structure and arranges.The air gap 6 become larger from centre to two ends it is formed with between the sheath of pole shoe 5 and rotor 20.Pass through said structure, it is possible to the length making the air gap 6 of motor is sinusoidal variations trend, further increases the sine degree of counter electromotive force.
In the present embodiment, as it is shown in fig. 7, it is arcwall face that pole shoe 5 points to the one end at stator core 4 center (i.e. the center of circle), concrete, the center eccentric setting of the center of circle of this arcwall face and stator core 4, so that air gap 6 becomes larger from centre to two ends.Preferably, the center of circle of the arcwall face of above-mentioned multiple pole shoes 5 has been collectively forming circle 7, and the center of circle of this circle 7 is arranged with the centres of stator core 4.And then pole shoe 5 is evenly distributed so that counter electromotive force has uniform sinusoidal wave form.
Embodiment 3:
The present embodiment provides another kind of motor, as shown in Figure 8, this motor it include the rotor 10 described in embodiment 1 and stator 20, concentric being placed in stator 20 of this rotor 10.
Concrete, the motor of the present embodiment is distinctive in that from the motor of embodiment 2 structure of the pole shoe 5 of stator 20 is different, as shown in Fig. 9 and Figure 10, the pole shoe 5 of the present embodiment points to the one end at stator core 4 center and includes median surface 51 and two ends, centrally located face 51 and the inclined-plane 52 being obliquely installed, and this inclined-plane 52 is not connected with centrally disposed away from stator core 4 of one end of median surface 51.And then enable between pole shoe 5 and the sheath of rotor, form the air gap 6 become larger from centre to two ends.The present embodiment is forming median surface 51 and inclined-plane 52 by the mode of pole shoe chamfered edge, and then is capable of air gap 6 and becomes larger from centre to two ends.
Above-mentioned median surface 51 can be plane or arcwall face, and when it is arcwall face, it is centrally disposed that this arcwall face is convex to stator core 4.Median surface 51 is set to plane by the present embodiment, in order to the processing of pole shoe 5.
Obviously, the above embodiment of the present invention is only used to the clear example of the present invention that illustrates, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.All any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within the protection domain of the claims in the present invention.
Claims (9)
1. a rotor, including rotor core (1), it is arranged on the magnetic shoe (2) in rotor core (1) outside, and it is set in magnetic shoe (2) sheath (3) outward, it is characterized in that, the inner arc of the outer arc of described magnetic shoe (2) and sheath (3) is that face contacts, and the inner arc two ends of described magnetic shoe (2) are provided with dead slot (21).
2. rotor according to claim 1, it is characterised in that the inner arc of the outer arc of described magnetic shoe (2) and sheath (3) is arranged concentrically.
3. rotor according to claim 2, it is characterised in that the inner arc two ends being arranged on magnetic shoe (2) that described dead slot (21) is symmetrical.
4. rotor according to claim 3, it is characterised in that described dead slot (21) is arcuate structure or square structure.
5. a motor, it is characterised in that include as arbitrary in claim 1-4 as described in rotor (10).
6. motor according to claim 5, it is characterized in that, also include stator (20), described stator (20) includes stator core (4) and is positioned at multiple pole shoes (5) of stator core (4) inner side, what described rotor was concentric is placed in stator core (4), is formed with the air gap (6) become larger from centre to two ends between described pole shoe (5) and described sheath (3).
7. motor according to claim 6, it is characterized in that, it is arcwall face that described pole shoe (5) points to the one end at stator core (4) center, the center of circle of described arcwall face and the center eccentric setting of stator core (4), make described air gap (6) become larger from centre to two ends.
8. motor according to claim 7, it is characterised in that the center of circle of the arcwall face of multiple pole shoes (5) is collectively forming circle (7), the centres of the center of circle of described circle (7) and stator core (4) is arranged.
9. motor according to claim 6, it is characterized in that, described pole shoe (5) points to the one end at stator core (4) center and includes median surface (51) and centrally located (51) two ends and the inclined-plane (52) being obliquely installed, and one end that described inclined-plane (52) are not connected with median surface (51) is centrally disposed away from stator core (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610292412.6A CN105811618A (en) | 2016-05-05 | 2016-05-05 | Rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610292412.6A CN105811618A (en) | 2016-05-05 | 2016-05-05 | Rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105811618A true CN105811618A (en) | 2016-07-27 |
Family
ID=56456345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610292412.6A Pending CN105811618A (en) | 2016-05-05 | 2016-05-05 | Rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105811618A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508396A (en) * | 2017-08-10 | 2017-12-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor assembly and motor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0393437A (en) * | 1989-09-06 | 1991-04-18 | Hitachi Ltd | Stator for electric machinery |
| US5939809A (en) * | 1995-10-04 | 1999-08-17 | Empresa Brasileira De Compressores S/A Embraco | Rotor with permanent magnets for an electric motor |
| JP2004260960A (en) * | 2003-02-27 | 2004-09-16 | Toyoda Mach Works Ltd | Electric motor |
| CN101247055A (en) * | 2008-02-23 | 2008-08-20 | 广东美芝制冷设备有限公司 | Low-fluctuation rare earth permanent magnetic brushless motor |
| CN102801228A (en) * | 2012-08-31 | 2012-11-28 | 珠海格力电器股份有限公司 | Motor stator punching sheet |
| JP2013027240A (en) * | 2011-07-25 | 2013-02-04 | Daikin Ind Ltd | Rotary electric machine |
| CN103051135A (en) * | 2011-10-17 | 2013-04-17 | 安徽美芝精密制造有限公司 | Permanent magnet synchronous motor of rotary compressor |
| CN103259351A (en) * | 2013-05-13 | 2013-08-21 | 广东威灵电机制造有限公司 | Permanent magnet motor |
| US20150162789A1 (en) * | 2013-12-06 | 2015-06-11 | Denso Corporation | Rotor and dynamo-electric machine having the same |
| CN205725210U (en) * | 2016-05-05 | 2016-11-23 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor and motor |
-
2016
- 2016-05-05 CN CN201610292412.6A patent/CN105811618A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0393437A (en) * | 1989-09-06 | 1991-04-18 | Hitachi Ltd | Stator for electric machinery |
| US5939809A (en) * | 1995-10-04 | 1999-08-17 | Empresa Brasileira De Compressores S/A Embraco | Rotor with permanent magnets for an electric motor |
| JP2004260960A (en) * | 2003-02-27 | 2004-09-16 | Toyoda Mach Works Ltd | Electric motor |
| CN101247055A (en) * | 2008-02-23 | 2008-08-20 | 广东美芝制冷设备有限公司 | Low-fluctuation rare earth permanent magnetic brushless motor |
| JP2013027240A (en) * | 2011-07-25 | 2013-02-04 | Daikin Ind Ltd | Rotary electric machine |
| CN103051135A (en) * | 2011-10-17 | 2013-04-17 | 安徽美芝精密制造有限公司 | Permanent magnet synchronous motor of rotary compressor |
| CN102801228A (en) * | 2012-08-31 | 2012-11-28 | 珠海格力电器股份有限公司 | Motor stator punching sheet |
| CN103259351A (en) * | 2013-05-13 | 2013-08-21 | 广东威灵电机制造有限公司 | Permanent magnet motor |
| US20150162789A1 (en) * | 2013-12-06 | 2015-06-11 | Denso Corporation | Rotor and dynamo-electric machine having the same |
| CN205725210U (en) * | 2016-05-05 | 2016-11-23 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor and motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508396A (en) * | 2017-08-10 | 2017-12-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor assembly and motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205283361U (en) | Single -phase external rotor electric machine and stator thereof | |
| CN103259356B (en) | The rotor of permanent-magnet machine | |
| CN1485968A (en) | Rotor of induction starting synchronous motor | |
| CN107196478B (en) | Permanent magnet motor | |
| WO2015097767A1 (en) | Permanent magnet type rotating electrical machine | |
| WO2020125066A1 (en) | Tangential motor, motor rotor and rotor core | |
| CN205725210U (en) | A kind of rotor and motor | |
| CN106160293A (en) | A kind of asynchronous motor rotor | |
| CN106451852A (en) | Rotor and permanent magnet motor | |
| CN104753213A (en) | Permanent-magnet DC brushless motor | |
| CN105811618A (en) | Rotor and motor | |
| CN106849425B (en) | For the rotor core of motor, motor, compressor and dish-washing machine | |
| CN210957949U (en) | Inner rotor magnetic sheet structure | |
| CN104518584B (en) | Permanent magnetic electric machine rotor iron core | |
| CN109217600A (en) | For the oblique pole magnetic shoe of motor and with its rotor and motor | |
| CN206149052U (en) | Rotor and permanent -magnet machine | |
| CN112260436A (en) | Rotor core, motor and compressor | |
| JP2011172359A (en) | Split rotor and electric motor | |
| CN110611386A (en) | Motor rotor, motor and compressor | |
| CN106230153B (en) | Rotor core, rotor and self-starting permanent magnet synchronous motor | |
| CN106030988B (en) | Electric rotating machine | |
| CN110098679B (en) | Permanent magnet synchronous motor transformation structure | |
| CN210246434U (en) | Permanent magnet component of permanent magnet motor | |
| CA2774303C (en) | Magnet shaping in permanent magnet synchronous machines | |
| CN207868887U (en) | A kind of high-speed permanent magnetic body synchronous motor rotor structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160727 |