CN202931055U - Motor rotor and motor - Google Patents
Motor rotor and motor Download PDFInfo
- Publication number
- CN202931055U CN202931055U CN201220526943.4U CN201220526943U CN202931055U CN 202931055 U CN202931055 U CN 202931055U CN 201220526943 U CN201220526943 U CN 201220526943U CN 202931055 U CN202931055 U CN 202931055U
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- Prior art keywords
- iron core
- rotor
- boss
- described iron
- magnetic shoe
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 230
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical group [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000004907 flux Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides an electric motor rotor and motor, this electric motor rotor has rotor shaft and rotor body, rotor body includes at least one iron core unit, each iron core unit has two the same and iron cores that set up in opposite directions of shape, each iron core has iron core body and from the iron core body outer peripheral edges along a plurality of iron core bosss of the radial outside extension of iron core, a plurality of iron core bosss are evenly distributed in the week of iron core unit, each iron core boss is higher than the iron core body in the axial of iron core, the iron core boss of two iron cores is at the interval arrangement in the week of iron core unit, and form the magnetic shoe groove between two adjacent iron core bosss, the magnetic shoe is installed to each magnetic shoe inslot, the shaft hole has been seted up at the middle part of each iron core body, the rotor shaft. The motor is provided with a stator and the rotor. The utility model discloses can reduce the magnetic leakage phenomenon, add the magnetic ring that has axial magnetic field simultaneously inside the iron core, can effectively improve rotor magnetic flux density and simple structure.
Description
Technical field
The utility model relates to machine field, the motor that especially relates to a kind of rotor and have this rotor.
Background technology
Motor is widely used in the various electric equipments of industrial production and life, referring to Fig. 1, the end cap 11,12 that existing motor has housing 10 and is positioned at housing 10 two ends, housing 10 and end cap 11,12 surround a cavity, stator 15 and rotor 18 are installed in cavity, and stator 15 has stator core 16 and is embedded into winding coil 17 on stator core 16.Rotor 18 is arranged in stator 15, and can be with respect to stator 15 rotations.Armature spindle 19 is arranged in rotor 18, and with rotor 18 interference fit, armature spindle 19 rotates under the drive of rotor 18, thus outside outputting power.
More existing motors adopt built-in type permanent-magnet rotors, and namely rotor has iron core, and permanent magnet is set on iron core, as magnetic shoe etc.Structure by p-m rotor is divided, existing p-m rotor can be divided into radial permanent magnet rotor and tangential permanent magnetic rotor.Although the p-m rotor leakage field of tangential is greater than the p-m rotor of radial, tangential permanent magnetic rotor flux area is larger, and larger power output can be provided, so the p-m rotor of tangential uses more extensive.
But, because p-m rotor is subject to built-in structural limitations, need to carry out every magnetic treatment the magnetic shoe two ends that are arranged in iron core, reduce as far as possible leakage field.Therefore, existing tangential permanent magnetic rotor often needs to arrange every magnetic bridge, but this structure will cause formation leakage field loop between rotor pole, reduce the magnetic flux utilance.
Therefore, notification number is that the Chinese utility model patent of CN202455179U discloses the innovation and creation of a kind of " built-in tangential permanent magnetic rotor " by name, axle sleeve and rotor core that this p-m rotor has armature spindle, made by non-magnet_conductible material, rotor core is put together by polylith iron core sub-block, iron core sub-block adjacent in polylith iron core sub-block forms the magnetic shoe groove to each other, and magnetic shoe is arranged in the magnetic shoe groove.And the magnetic shoe groove is along the trapezoidal shape that is inner wide and outer narrow on rotor radial, and the shape of magnetic shoe and magnetic shoe groove are complementary.Because rotor core, the magnetic shoe of this rotor is assemblied on non-magnetic axle sleeve, what this rotor can suppress that interpolar is communicated with directly contacts and makes formation leakage field loop between rotor pole, the leakage field of reduction rotor every magnetic bridge, magnetic shoe with armature spindle.
Yet because the rotor core of this structure need to be put together by polylith iron core sub-block, during the rotor assembling, technique is comparatively complicated, and the production efficiency of rotor is lower, thereby affects the production efficiency of motor.
Summary of the invention
Main purpose of the present utility model is to provide and a kind ofly effectively reduces leakage field and strengthen magnetic field intensity and assemble simple rotor.
Another purpose of the present utility model is to provide the motor that a kind of rotor structure is simple, magnetic field intensity is higher and leakage field is less.
for realizing main purpose of the present utility model, the rotor that the utility model provides comprises armature spindle and is sleeved on the outer rotor body of armature spindle, wherein, rotor body comprises at least one iron core unit, each iron core unit has the identical and iron core that arrange in opposite directions of two shapes, a plurality of iron core boss that each iron core has the iron core body and extends radially outwardly along iron core from iron core body outer peripheral edges, a plurality of iron core boss upwards evenly distributed in the week of iron core unit, each iron core boss iron core axially on higher than the iron core body, the iron core boss of two iron cores is arranged at the interval that makes progress in the week of iron core unit, namely the iron core boss of an iron core is between two adjacent iron core boss of another iron core, and form the magnetic shoe groove between two adjacent iron core boss, in each magnetic shoe groove, magnetic shoe is installed, the middle part of each iron core body offers axis hole, armature spindle passes axis hole.
By such scheme as seen, iron core unit has two iron cores, and the both sides iron core boss of each magnetic shoe lays respectively on two different iron cores, do not need on rotor to arrange every magnetic bridge, can avoid the formation in leakage field loop like this, reduce the generation of rotor leakage, and rotor is simple in structure, easy to assembly, the production cost of reduction rotor and motor.
A preferred scheme is, form the gap between the iron core body internal surface of two iron cores, one magnet ring is arranged in this gap, two sidewalls of magnet ring respectively with the abutment of two iron core bodies, and the polarity of the iron core boss of the iron core body that is adjacent of the polarity of magnet ring sidewall is identical.
This shows, every pole field of rotor unit is formed in parallel by the sidewall of two magnetic shoes and magnet ring respectively, compares common built-in structure, and this structure is reducing to strengthen again magnetic field intensity on the basis of leakage field simultaneously.
Further scheme is, each iron core boss is near being equipped with the projection that circumferentially extends along iron core from sidewall outside the two side of outer wall.
As seen, the projection that is arranged on the iron core boss makes the magnetic shoe groove form the shape of inner wide and outer narrow, is conducive to magnetic shoe is fixed in the magnetic shoe groove, avoids magnetic shoe to come off in the magnetic shoe groove.
for realizing another purpose of the present utility model, the motor that the utility model provides has stator and rotor, rotor comprises armature spindle and is sleeved on the outer rotor body of armature spindle, wherein, rotor body comprises at least one iron core unit, each iron core unit has the identical and iron core that arrange in opposite directions of two shapes, a plurality of iron core boss that each iron core has the iron core body and extends radially outwardly along iron core from iron core body outer peripheral edges, a plurality of iron core boss upwards evenly distributed in the week of iron core unit, each iron core boss iron core axially on higher than the iron core body, the iron core boss of two iron cores is arranged at the interval that makes progress in the week of iron core unit, and form the magnetic shoe groove between two adjacent iron core boss, in each magnetic shoe groove, magnetic shoe is installed, the middle part of each iron core body offers axis hole, armature spindle passes axis hole.
By such scheme as seen, the rotor of motor comprises more than one iron core unit, each iron core unit comprises two iron cores, and the iron core projection of two iron cores arranges and forms thus the magnetic shoe groove alternately, therefore two iron core pieces of the both sides of magnetic shoe lay respectively on two different iron cores, thereby partition leakage field loop reduces the rotor leakage phenomenon.
And because iron core unit only comprises two iron cores, so rotor is easy to assembly.In addition, rotor body can be made of one or more rotor units, can increase and decrease the quantity of iron core unit according to the actual needs of motor when making motor, and the production of motor is flexible.
Description of drawings
Fig. 1 be existing motor partly cut open figure.
Fig. 2 is the structure chart of the utility model rotor embodiment.
Fig. 3 is the structure enlarged drawing of an iron core unit in the utility model rotor embodiment.
Fig. 4 is the structure enlarged drawing of iron core in the utility model rotor embodiment.
Fig. 5 is the partial structurtes enlarged drawing of iron core unit in the utility model rotor embodiment.
Fig. 6 is the structure enlarged drawing of magnetic shoe in the utility model rotor embodiment.
Fig. 7 is the structure enlarged drawing of the utility model rotor embodiment middle magnetic ring.
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
The end cap that the motor of the present embodiment has housing and is positioned at the housing both sides, housing and end cap surround a cavity, and stator and rotor are installed in cavity, and stator has stator core and is embedded into winding coil on stator core, rotor is arranged in stator, and can rotate with respect to stator.
Referring to Fig. 2, the rotor of the present embodiment has armature spindle 20 and is sleeved on the outer rotor body of armature spindle 20, rotor body is made of three iron core unit 21,22,23, therefore, armature spindle 20 is arranged in rotor body, and with the rotor body interference fit, armature spindle rotates under the drive of rotor body, and outside outputting power.
In the present embodiment, the quantity of the iron core unit of rotor body can be according to the structure of motor, the increase and decrease of actual operating position.The structure of each iron core unit is identical, and is sleeved on successively outside armature spindle 20, two adjacent iron core unit adjacency.
Referring to Fig. 3, iron core unit 21 has two iron cores 30,40, and the shape of iron core 30 is identical with the shape of iron core 40, and two iron cores 30,40 arrange in opposite directions.As shown in Figure 4, the middle part of iron core 30 is iron core body 31, and it is laminated by the multi-disc silicon steel sheet.The outer peripheral edges that the periphery of iron core body 31 is provided with from iron core body 31 upwards evenly distribute in the week of iron core 30 along 33, four iron core boss 33 of four iron core boss that iron core 30 extends radially outwardly, and the shape of each iron core boss 33 is identical.
On iron core body 30 the polarity of cored boss 33 identical, iron core boss polarity all on iron core body 40 is also identical, but the polarity of the iron core boss on the polarity of iron core boss 33 and iron core body 40 is different.
Be provided with the circumferential outward extending projection 34 along iron core 30 from sidewall 36 near outer wall 37 places on each sidewall 36, and each sidewall 36 is being provided with the circumferential outward extending projection 38 along iron core 30 from sidewall 36 near inwall 35 places.
The middle part of iron core body 31 offers a columniform through hole, and this through hole is axis hole 39, and after iron core 21 was installed on armature spindle, armature spindle passed axis hole 39.On the axial direction of iron core 30, the height of iron core boss 33 is higher than the height of iron core body 31, and iron core body 31 is inner surface 32 near the one side of iron core boss 33, and the one side relative with inner surface 32 is the outer surface of iron core body 31.
Referring to Fig. 5, two iron cores 30,40 of iron core unit arrange in opposite directions, the iron core boss 43 that iron core 40 also has iron core body 41 and extends radially outwardly along iron core 40 from iron core body 41 outer peripheral edges, the sidewall of each iron core boss 43 is provided with projection 44 near the outer wall place.The iron core boss 33 of iron core 30 arranges at the interval that makes progress in the week of iron core unit 21 with the iron core boss 43 of iron core 40, each iron core boss 33 is between two adjacent iron core boss 43, and each iron core boss 43 is also between two adjacent iron core boss 33.
Iron core boss 33 forms a magnetic shoe groove with adjacent iron core boss 43, and a magnetic shoe 51 is installed in each magnetic shoe groove, and as shown in Figure 6, each magnetic shoe 51 is square, and the pair of sidewalls of magnetic shoe 51 is the opposite wall of magnetic.Because iron core boss 33,43 all arranges projection 34,44, avoid magnetic shoe 51 in the magnetic shoe groove, radial motion to occur, thereby avoid magnetic shoe 51 to come off in the magnetic shoe groove.Certainly, two sidewalls 52,53 of magnetic shoe 51 respectively with two inwall adjacency of magnetic shoe groove, circumferential movement occur in magnetic shoe 51 when avoiding rotor.
Review Fig. 5, form air gap 60 between the periphery wall 59 of magnet ring 55 and iron core boss 33,43 inwall 35,45, namely magnet ring 55 can directly not contact with iron core boss 33,43 inwall 35,45.
During assemble rotor, at first an iron core 30 is sleeved on armature spindle, then magnet ring 55 is sleeved on armature spindle, make magnet ring 55 be positioned at the inwall 35 of iron core boss 33 and inner surface 32 adjacency of the sidewall of magnet ring 55 and iron core body 31.Then, another iron core 40 is sleeved on armature spindle, iron core 30 arranges in opposite directions with iron core 40, and the iron core boss 33 on iron core 30 need to be arranged at the interval that makes progress in the week of iron core unit 21 with the iron core boss 43 of iron core 40.At last, fill in magnetic shoe 55 between adjacent iron core boss 33 and iron core boss 43, complete the assembling of an iron core unit 21, on the rear iron core unit 21 of assembling, polarity of the magnetic field is as shown in the mark of Fig. 5.
Certainly, if rotor need to be exported larger power, can increase the quantity that is sleeved on the iron core unit on armature spindle, so the quantity of iron core unit can increase and decrease according to the actual use needs of motor, the manufacturing of motor is more flexible.In addition, after completing the assembling to rotor body, can also be at the two ends of rotor by the non-magnetic end ring is set or with the rotor integral molded plastic to improve the intensity of rotor.
Because the iron core boss of two of each magnetic shoes of rotor lays respectively on two different iron cores, can effectively deaden the leakage field loop of rotor, greatly reduce the generation of leakage field phenomenon.In addition, because each iron core unit only comprises two iron cores, assemble simple and conveniently, reduce the production cost of rotor.
Certainly, above-described embodiment is only the preferred embodiment of the utility model, in actual application, more change can also be arranged, and for example, armature spindle uses non-magnetic material to make, and further intercepts the leakage field loop; Perhaps, be set with insulating case outside armature spindle, iron core unit is sleeved on outside insulating case, and such change also can realize the purpose of this utility model.
It is emphasized that at last the utility model is not limited to above-mentioned execution mode, also should be included in the protection range of the utility model claim as the change of each iron core upper core boss quantity, the variations such as change of iron core boss shape.
Claims (10)
1. rotor, comprise
Armature spindle and be sleeved on the outer rotor body of described armature spindle;
It is characterized in that:
Described rotor body comprises at least one iron core unit, each described iron core unit has the identical and iron core that arrange in opposite directions of two shapes, a plurality of iron core boss that each described iron core has the iron core body and extends radially outwardly along described iron core from described iron core body outer peripheral edges, a plurality of described iron core boss upwards evenly distributed in week of described iron core unit, each described iron core boss described iron core axially on higher than described iron core body;
The described iron core boss of two described iron cores is arranged at the interval that makes progress in the week of described iron core unit, and formation magnetic shoe groove between two adjacent described iron core boss, in each described magnetic shoe groove, magnetic shoe is installed;
The middle part of each described iron core body offers axis hole, and described armature spindle passes described axis hole.
2. rotor according to claim 1 is characterized in that:
Form the gap between the iron core body internal surface of two described iron cores, one magnet ring is arranged in described gap, two sidewalls of described magnet ring respectively with two described iron core body internal surface adjacency, and the polarity of the iron core boss of the described iron core body that is adjacent of the polarity of described magnet ring sidewall is identical.
3. rotor according to claim 2 is characterized in that:
Form air gap between the inwall of the periphery wall of described magnet ring and described iron core boss.
4. the described rotor of according to claim 1 to 3 any one is characterized in that:
Each described iron core boss is near being equipped with the projection that circumferentially extends along described iron core from described sidewall outside the two side of outer wall.
5. the described rotor of according to claim 1 to 3 any one is characterized in that:
The inwall adjacency of the sidewall of described magnetic shoe and described magnetic shoe groove.
6. motor, comprise
Stator and rotor, described rotor have armature spindle and are sleeved on the outer rotor body of described armature spindle;
It is characterized in that:
Described rotor body comprises at least one iron core unit, each described iron core unit has the identical and iron core that arrange in opposite directions of two shapes, a plurality of iron core boss that each described iron core has the iron core body and extends radially outwardly along described iron core from described iron core body outer peripheral edges, a plurality of described iron core boss upwards evenly distributed in week of described iron core unit, each described iron core boss described iron core axially on higher than described iron core body;
The described iron core boss of two described iron cores is arranged at the interval that makes progress in the week of described iron core unit, and formation magnetic shoe groove between two adjacent described iron core boss, in each described magnetic shoe groove, magnetic shoe is installed;
The middle part of each described iron core body offers axis hole, and described armature spindle passes described axis hole.
7. motor according to claim 6 is characterized in that:
Form the gap between the iron core body internal surface of two described iron cores, one magnet ring is arranged in described gap, two sidewalls of described magnet ring respectively with two described iron core body internal surface adjacency, and the polarity of the iron core boss of the described iron core body that is adjacent of the polarity of described magnet ring sidewall is identical.
8. motor according to claim 7 is characterized in that:
Form air gap between the inwall of the periphery wall of described magnet ring and described iron core boss.
9. the described motor of according to claim 6 to 8 any one is characterized in that:
Each described iron core boss is near being equipped with the projection that circumferentially extends along described iron core from described sidewall outside the two side of outer wall.
10. the described motor of according to claim 6 to 8 any one is characterized in that:
The inwall adjacency of the sidewall of described magnetic shoe and described magnetic shoe groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220526943.4U CN202931055U (en) | 2012-10-15 | 2012-10-15 | Motor rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220526943.4U CN202931055U (en) | 2012-10-15 | 2012-10-15 | Motor rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202931055U true CN202931055U (en) | 2013-05-08 |
Family
ID=48220965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220526943.4U Expired - Fee Related CN202931055U (en) | 2012-10-15 | 2012-10-15 | Motor rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202931055U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762958A (en) * | 2016-05-06 | 2016-07-13 | 浙江希尔富电气有限公司 | Rotor iron core for brushless electric machine |
| CN106341019A (en) * | 2016-09-26 | 2017-01-18 | 威灵（芜湖）电机制造有限公司 | Self-starting motor rotor, self-starting permanent magnet motor and household appliance |
| CN106374724A (en) * | 2016-11-28 | 2017-02-01 | 范文杰 | Antigravity engine |
| CN106451981A (en) * | 2016-09-26 | 2017-02-22 | 威灵（芜湖）电机制造有限公司 | Self-starting motor rotor, self-starting permanent magnet motor and household appliance |
| CN106712348A (en) * | 2016-12-27 | 2017-05-24 | 威灵（芜湖）电机制造有限公司 | Rotor core, rotor and motor with same |
| CN107591914A (en) * | 2017-10-09 | 2018-01-16 | 浙江三星机电股份有限公司 | A kind of rotor core and motor |
| CN112671137A (en) * | 2020-12-28 | 2021-04-16 | 江苏沃尔森电子科技有限公司 | Brushless motor |
-
2012
- 2012-10-15 CN CN201220526943.4U patent/CN202931055U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762958A (en) * | 2016-05-06 | 2016-07-13 | 浙江希尔富电气有限公司 | Rotor iron core for brushless electric machine |
| CN106341019A (en) * | 2016-09-26 | 2017-01-18 | 威灵（芜湖）电机制造有限公司 | Self-starting motor rotor, self-starting permanent magnet motor and household appliance |
| CN106451981A (en) * | 2016-09-26 | 2017-02-22 | 威灵（芜湖）电机制造有限公司 | Self-starting motor rotor, self-starting permanent magnet motor and household appliance |
| CN106341019B (en) * | 2016-09-26 | 2019-11-22 | 威灵（芜湖）电机制造有限公司 | Self-starting rotor, self-starting magneto and household electrical appliance |
| CN106451981B (en) * | 2016-09-26 | 2020-04-03 | 威灵（芜湖）电机制造有限公司 | Self-starting motor rotor, self-starting permanent magnet motor and household appliance |
| CN106374724A (en) * | 2016-11-28 | 2017-02-01 | 范文杰 | Antigravity engine |
| CN106712348A (en) * | 2016-12-27 | 2017-05-24 | 威灵（芜湖）电机制造有限公司 | Rotor core, rotor and motor with same |
| CN107591914A (en) * | 2017-10-09 | 2018-01-16 | 浙江三星机电股份有限公司 | A kind of rotor core and motor |
| CN107591914B (en) * | 2017-10-09 | 2024-03-29 | 浙江三星机电股份有限公司 | Rotor core and motor |
| CN112671137A (en) * | 2020-12-28 | 2021-04-16 | 江苏沃尔森电子科技有限公司 | Brushless motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20211015 |