CN107231048A - Motor, embedded rotor, rotor core and its rotor punching - Google Patents
Motor, embedded rotor, rotor core and its rotor punching Download PDFInfo
- Publication number
- CN107231048A CN107231048A CN201710657084.XA CN201710657084A CN107231048A CN 107231048 A CN107231048 A CN 107231048A CN 201710657084 A CN201710657084 A CN 201710657084A CN 107231048 A CN107231048 A CN 107231048A
- Authority
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- China
- Prior art keywords
- rotor
- limiting component
- punching
- magnetic shoe
- groove
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of motor, embedded rotor, rotor core and its rotor punching, rotor punching includes punching body (1) and the magnetic shoe groove (2) being arranged on the punching body (1), in addition to multiple limiting components (3) for spacing magnetic shoe；Punching entity part between the two neighboring magnetic shoe groove (2) is connected with the limiting component (3)；The two neighboring limiting component (3) is separate.The rotor punching that the present invention is provided, limiting component is connected by the punching entity part between two neighboring magnetic shoe groove, after magnetic shoe is installed in magnetic shoe groove, by the spacing magnetic shoe of limiting component, reaches the effect of limitation magnetic shoe.Because two neighboring limiting component is separate, leakage field situation is effectively eliminated, the utilization rate of magnetic shoe is improved, and then improves the power density of motor.
Description
Technical field
The present invention relates to motor device technical field, more particularly to a kind of motor, embedded rotor, rotor core and its turn
Sub- punching.
Background technology
Ferrite magnetic materials being used traditional magneto, to obtain larger magnetic flux density, also, rotor is adopted mostly more
Use inline mode.The magnetic field of embedded rotor is provided by two neighboring magnetic pole parallel, compared to magnetic shoe surface-mounted rotor, magnetic
Flux density is bigger, can obtain bigger output torque.
As shown in Figures 1 and 2, in a kind of existing embodiment, rotor core is is superimposed by multiple rotor punchings
The magnetic shoe groove 02 for including punching body 01 into, rotor punching and being arranged on punching body 01 is constituted, and magnetic shoe groove 02 is towards punching
The side at the center of body 01 has cyclic structure, in order to play a part of spacing magnetic shoe.Wherein, cyclic structure and punching body
01 is formed in one structure, and the punching entity part between two neighboring magnetic shoe groove 02 is connected with cyclic structure, and cyclic structure
With towards the direction of magnetic shoe groove 02 projection and for the lug boss of spacing magnetic shoe.Due to the punching between two neighboring magnetic shoe groove 02
The link position and lug boss of entity part and cyclic structure are leakage field magnetic circuit, and embedded rotor can be made to have larger leakage field
Coefficient.At present, the volume of the link position of punching entity part and cyclic structure between two neighboring magnetic shoe groove 02 can be reduced,
Formed every magnetic bridge 03, reach the effect for reducing leakage field.But, can not be excessively narrower every magnetic bridge 03 in order to ensure structural strength, because
, inevitably there is leakage field situation in this so that magnetic shoe utilization rate is not high.
Therefore, leakage field situation how is eliminated, magnetic shoe utilization rate is improved, is those skilled in the art's urgent problem to be solved.
The content of the invention
In view of this, the invention provides a kind of embedded rotor, to eliminate leakage field situation, magnetic shoe utilization rate is improved.This
Invention additionally provides a kind of rotor core, embedded rotor and motor with above-mentioned rotor punching.
To achieve the above object, the present invention provides following technical scheme：
A kind of rotor punching, including punching body and the magnetic shoe groove that is arranged on the punching body, in addition to multiple use
In the limiting component of spacing magnetic shoe；
Punching entity part between the two neighboring magnetic shoe groove is connected with the limiting component；The two neighboring limit
Position part is separate.
Preferably, in above-mentioned rotor punching, the limiting component is to be used for and magnetic towards the one side inside the magnetic shoe groove
Watt medial surface coordinate mating surface.
Present invention also offers a kind of rotor core, including multiple rotor punchings, it is characterised in that the rotor punching is
Rotor punching described in any one as described above.
Present invention also offers a kind of embedded rotor, including rotor core and armature spindle, it is characterised in that the rotor
Iron core is rotor core as described above.
Preferably, in above-mentioned embedded rotor, the rotor core and the armature spindle are molded into one by injected plastics material
Body formula injection structure.
Preferably, in above-mentioned embedded rotor, the injected plastics material is BMC.
Preferably, in above-mentioned embedded rotor, any one group of edge electricity in multiple rotor punchings in the rotor core
The axially stacking limiting component of machine is respectively formed limit assembly；
The limiting component in the limit assembly has two kinds, respectively the first limiting component and the second limiting component；
There is the axially arranged injection reinforced hole along the rotor core, second limit on first limiting component
Position part has the axially arranged groove along the rotor core；The groove is connected with the injection reinforced hole.
Preferably, in above-mentioned embedded rotor, the opening of the groove is towards the center of the rotor core.
Preferably, in above-mentioned embedded rotor, the injection reinforced hole has the hole with the groove aligning inner of the groove
Wall part.
Preferably, there is first limiting component being staggered in above-mentioned embedded rotor, on the rotor punching
With second limiting component.
Preferably, in above-mentioned embedded rotor, first limiting component and the described second limit on the limit assembly
Position part is staggered.
Preferably, in above-mentioned embedded rotor, in addition to the snap ring for rotor core described in axial limiting；
The annular groove being engaged with the snap ring is provided with the armature spindle.
Preferably, in above-mentioned embedded rotor, in addition to the positioning hole being arranged on the end face of the embedded rotor.
Present invention also offers a kind of motor, including the embedded rotor described in any one as described above.
It can be seen from above-mentioned technical scheme that, the rotor punching that provides of the present invention, by two neighboring magnetic shoe groove it
Between punching entity part connection limiting component, after magnetic shoe is installed in magnetic shoe groove, by the spacing magnetic shoe of limiting component, reach
To the effect of limitation magnetic shoe.Because two neighboring limiting component is separate, leakage field situation is effectively eliminated, magnetic shoe is improved
Utilization rate, and then improve the power density of motor.
Present invention also offers a kind of rotor core, embedded rotor and motor with above-mentioned rotor punching.Due to upper
Stating rotor punching has above-mentioned technique effect, and rotor core, embedded rotor and motor with above-mentioned rotor punching should also have
There is same technique effect, no longer tire out one by one state herein.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of rotor punching of the prior art；
Fig. 2 is the close-up schematic view of part A in Fig. 1；
Fig. 3 is the structural representation of rotor punching provided in an embodiment of the present invention；
Fig. 4 is the close-up schematic view of part B in Fig. 3；
Fig. 5 is the structural representation of rotor core provided in an embodiment of the present invention；
Fig. 6 is the close-up schematic view of C portion in Fig. 5.
Embodiment
The invention discloses a kind of rotor punching, to eliminate leakage field situation, magnetic shoe utilization rate is improved.Present invention also offers
A kind of rotor core, embedded rotor and motor with above-mentioned rotor punching.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 3 and Fig. 4 is refer to, the embodiments of the invention provide a kind of rotor punching, including punching body 1 and punching is arranged at
Magnetic shoe groove 2 on piece body 1, in addition to the limiting component 3 for spacing magnetic shoe；Limiting component 3 and two neighboring magnetic shoe groove 2 it
Between punching entity part connection；Two neighboring limiting component 3 is separate.
Rotor punching provided in an embodiment of the present invention, is connected by the punching entity part between two neighboring magnetic shoe groove 2
Limiting component 3 is connect, after magnetic shoe is installed in magnetic shoe groove 2, by the spacing magnetic shoe of limiting component 3, the work of limitation magnetic shoe is reached
With.Because two neighboring limiting component 3 is separate, leakage field situation is effectively eliminated, the utilization rate of magnetic shoe, Jin Erti is improved
The high power density of motor.
It is understood that punching entity part between two neighboring magnetic shoe groove 2 and limiting component 3 one can be made a pair
It should connect, i.e. be all connected with a limiting component 3 in the punching entity part between each two neighboring magnetic shoe groove 2.Can also
One limiting component 3 is set at interval of the punching entity part between a two neighboring magnetic shoe groove 2, i.e. first adjacent two
Punching entity part between individual magnetic shoe groove 2 sets limiting component 3, between spacing first two neighboring magnetic shoe groove 2
Magnetic shoe, the punching entity part adjacent with the punching entity part is not connected to limiting component 3, and next one punching entity part connects
Connect limiting component 3.Only need to ensure the magnetic shoe that multiple limiting components 3 can be on spacing rotor punching in whole magnetic shoe grooves 2.
Further, the cooperation that limiting component 3 is used to coordinate with the medial surface of magnetic shoe towards the one side inside magnetic shoe groove 2
Face.Pass through above-mentioned setting so that the medial surface of magnetic shoe is contacted with the mating surface of limiting component 3, effectively increase spacing magnetic shoe groove 2
The effect of interior magnetic shoe.
Preferably, the mating surface of limiting component 3 is plane.
The embodiment of the present invention additionally provides a kind of rotor core, including multiple rotor punchings, and rotor punching is to appoint as described above
A kind of rotor punching.Because above-mentioned rotor punching has above-mentioned technique effect, the rotor core with above-mentioned rotor punching also should
With similarly technique effect, no longer tire out one by one state and within protection domain herein.
The embodiment of the present invention additionally provides a kind of embedded rotor, including rotor core and armature spindle, wherein, rotor core
For any rotor core as described above.Because above-mentioned rotor core has above-mentioned technique effect, with above-mentioned rotor core
Embedded rotor should also have similarly technique effect, no longer tire out one by one state and within protection domain herein.
In order to improve the bulk strength of embedded rotor, rotor core and armature spindle are molded into integral type by injected plastics material
Injection structure.By above-mentioned setting, the bulk strength of embedded rotor is effectively increased, in order to make embedded rotor bear more
Big centrifugal force, and then suitable for high-speed electric expreess locomotive.
Injected plastics material is BMC (Bulk Molding Compound, BMC) material.Due to BMC structure
Intensity is high, can effectively improve the bulk strength of embedded rotor.
Further, in rotor core in multiple rotor punchings any one group along the axially stacking limiting component 3 of motor
It is respectively formed limit assembly 30.That is, the limiting component of any one in rotor punching 3, with correspondence position in other rotor punchings
Limiting component 3 is superimposed to form limit assembly 30 upwards in motor shaft.It is understood that two neighboring limit assembly 30 with mutually
It is independent.
As shown in Fig. 4, Fig. 5 and Fig. 6, the limiting component 3 in limit assembly 30 has two kinds, respectively the first limiting component 3a
And the second limiting component 3b；There is the axially arranged injection reinforced hole 3a1 along rotor core, second on first limiting component 3a
Limiting component 3b has the axially arranged groove 3b1 along rotor core；Groove 3b1 is connected with injection reinforced hole 3a1.Multiple
Rotor punching is superimposed to be formed after rotor core, and the injection reinforced hole 3a1 formation in limit assembly 30 is for leading to that injected plastics material passes through
Road, and groove 3b1 is connected with injection reinforced hole 3a1 so that injected plastics material can by groove 3b1 opening flow channel,
Further increase the integrally-built intensity of embedded rotor.
Preferably, groove 3b1 opening is towards the center of rotor core.By above-mentioned setting, in order to which injected plastics material can
To be flowed into by the gap between rotor core and armature spindle in injection reinforced hole 3a1.
In order to improve flow effect, injection reinforced hole 3a1 has the wall portion with groove 3b1 groove aligning inner.That is,
It is molded after reinforced hole 3a1 and groove 3b1 cooperations, internal partial wall alignment forms coherent even surface structure, in order to injected plastics material
Flowing.
In the present embodiment, because groove 3b1 opening is towards the center of rotor core, reinforced hole 3a1 dorsad rotors are molded
The outside hole wall at the center of iron core and groove 3b1 groove aligning inner.
There is the first limiting component 3a being staggered in order to ensure the stability of rotation of embedded rotor, on rotor punching
With the second limiting component 3b.That is, along in the circumferential direction of rotor, there is one second between two neighboring first limiting component 3a
Limiting component 3b.
As shown in Figures 5 and 6, the first limiting component 3a on limit assembly 30 and the second limiting component 3b is staggered.
That is, along along the axial direction of rotor, there is a second limiting component 3b between two neighboring first limiting component 3a, is molded material
Material can be entered by the second limiting component 3b groove 3b1 opening, flow into the injection reinforced hole 3a1 connected with groove 3b1
In.
In order to improve in locating effect, embedded rotor provided in an embodiment of the present invention, in addition to for axial limiting turn
The snap ring of sub- iron core；The annular groove being engaged with snap ring is provided with armature spindle.
In order to improve the locating effect in injection moulding process, in addition to the positioning hole being arranged on the end face of embedded rotor.
The embodiment of the present invention additionally provides a kind of motor, including any embedded rotor as described above.Due to above-mentioned embedded
Formula rotor has above-mentioned technique effect, and the motor with above-mentioned embedded rotor should also have similarly technique effect, herein not
Tire out one by one again and state and within protection domain.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (14)
1. a kind of rotor punching, including punching body (1) and the magnetic shoe groove (2) that is arranged on the punching body (1), its feature
It is, in addition to multiple limiting components (3) for spacing magnetic shoe；
Punching entity part between the two neighboring magnetic shoe groove (2) is connected with the limiting component (3)；It is two neighboring described
Limiting component (3) is separate.
2. rotor punching as claimed in claim 1, it is characterised in that the limiting component (3) is interior towards the magnetic shoe groove (2)
The one side in portion is for the mating surface with the cooperation of the medial surface of magnetic shoe.
3. a kind of rotor core, including multiple rotor punchings, it is characterised in that the rotor punching is such as institute of claim 1 or 2
The rotor punching stated.
4. a kind of embedded rotor, including rotor core and armature spindle, it is characterised in that the rotor core is such as claim
Rotor core described in 3.
5. embedded rotor as claimed in claim 4, it is characterised in that the rotor core and the armature spindle pass through injection
Material injection is integral type injection structure.
6. embedded rotor as claimed in claim 5, it is characterised in that the injected plastics material is BMC.
7. embedded rotor as claimed in claim 5, it is characterised in that in the rotor core in multiple rotor punchings
Any one group is respectively formed limit assembly (30) along the axially stacking limiting component of motor (3)；
The limiting component (3) in the limit assembly (30) has two kinds, and respectively the first limiting component (3a) and second limit
Position part (3b)；
There is the axially arranged injection reinforced hole (3a1) along the rotor core on first limiting component (3a), it is described
Second limiting component (3b) has the axially arranged groove (3b1) along the rotor core；The groove (3b1) and the note
Mould reinforced hole (3a1) connection.
8. embedded rotor as claimed in claim 7, it is characterised in that the opening of the groove (3b1) is towards the rotor
The center of iron core.
9. embedded rotor as claimed in claim 7, it is characterised in that the injection reinforced hole (3a1) have with it is described recessed
The wall portion of the groove aligning inner of groove (3b1).
10. embedded rotor as claimed in claim 7, it is characterised in that there is the institute being staggered on the rotor punching
State the first limiting component (3a) and second limiting component (3b).
11. the embedded rotor as described in claim any one of 7-10, it is characterised in that the institute on the limit assembly (30)
The first limiting component (3a) is stated to be staggered with second limiting component (3b).
12. embedded rotor as claimed in claim 4, it is characterised in that also including for rotor core described in axial limiting
Snap ring；
The annular groove being engaged with the snap ring is provided with the armature spindle.
13. embedded rotor as claimed in claim 4, it is characterised in that the also end including being arranged at the embedded rotor
Positioning hole on face.
14. a kind of motor, it is characterised in that including the embedded rotor as described in claim any one of 4-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710657084.XA CN107231048B (en) | 2017-08-03 | 2017-08-03 | Motor, embedded rotor, rotor core and rotor punching sheet thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710657084.XA CN107231048B (en) | 2017-08-03 | 2017-08-03 | Motor, embedded rotor, rotor core and rotor punching sheet thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107231048A true CN107231048A (en) | 2017-10-03 |
| CN107231048B CN107231048B (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710657084.XA Active CN107231048B (en) | 2017-08-03 | 2017-08-03 | Motor, embedded rotor, rotor core and rotor punching sheet thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107231048B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494127A (en) * | 2018-04-17 | 2018-09-04 | 绍兴上虞铭信电子科技有限公司 | A kind of injection molding rotor and its manufacturing method |
| CN108631469A (en) * | 2018-05-29 | 2018-10-09 | 广东威灵电机制造有限公司 | Rotor and motor with it |
| CN109286253A (en) * | 2018-11-20 | 2019-01-29 | 卧龙电气集团股份有限公司 | A kind of rotor core and rotor, motor with the iron core |
| CN109309420A (en) * | 2018-11-20 | 2019-02-05 | 卧龙电气集团股份有限公司 | A kind of rotor punching and rotor core, motor with the punching |
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| CN202524266U (en) * | 2012-02-28 | 2012-11-07 | 珠海格力电器股份有限公司 | Permanent magnet rotor and permanent magnet motor |
| JP2015119564A (en) * | 2013-12-18 | 2015-06-25 | ダイキン工業株式会社 | Rotor structure of magnet embedded motor |
| CN105978192A (en) * | 2016-05-05 | 2016-09-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor punching plate, rotor and motor |
| CN106505764A (en) * | 2016-11-18 | 2017-03-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor structure, motor and compressor |
| CN207039322U (en) * | 2017-08-03 | 2018-02-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor, embedded rotor, rotor core and its rotor punching |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202524266U (en) * | 2012-02-28 | 2012-11-07 | 珠海格力电器股份有限公司 | Permanent magnet rotor and permanent magnet motor |
| JP2015119564A (en) * | 2013-12-18 | 2015-06-25 | ダイキン工業株式会社 | Rotor structure of magnet embedded motor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494127A (en) * | 2018-04-17 | 2018-09-04 | 绍兴上虞铭信电子科技有限公司 | A kind of injection molding rotor and its manufacturing method |
| CN108631469A (en) * | 2018-05-29 | 2018-10-09 | 广东威灵电机制造有限公司 | Rotor and motor with it |
| CN109286253A (en) * | 2018-11-20 | 2019-01-29 | 卧龙电气集团股份有限公司 | A kind of rotor core and rotor, motor with the iron core |
| CN109309420A (en) * | 2018-11-20 | 2019-02-05 | 卧龙电气集团股份有限公司 | A kind of rotor punching and rotor core, motor with the punching |
| CN109309420B (en) * | 2018-11-20 | 2024-07-05 | 卧龙电气集团股份有限公司 | Rotor punching sheet, rotor iron core with same and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107231048B (en) | 2023-05-23 |
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