CN209282957U - A kind of rotor and the motor with it - Google Patents
A kind of rotor and the motor with it Download PDFInfo
- Publication number
- CN209282957U CN209282957U CN201822119234.4U CN201822119234U CN209282957U CN 209282957 U CN209282957 U CN 209282957U CN 201822119234 U CN201822119234 U CN 201822119234U CN 209282957 U CN209282957 U CN 209282957U
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- rotor
- punching
- core
- magnetic
- motor
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Abstract
The utility model provides a kind of rotor and the motor with it, on the one hand, the utility model relates to a kind of rotors of spoke type magnetic steel structure, it includes shaft, rotor core and multi-disc magnet steel, multi-disc magnet steel is inserted into the inside of rotor core, and rotor core is staggeredly superimposed by the first rotor punching of different shapes and the second rotor punching and is formed；On the other hand, the utility model relates to a kind of reliable operations, high-efficient motor, by the reasonable combination of two kinds of rotor punchings, so that the intensity of rotor core is big, and the leakage field of rotor can be effectively reduced.
Description
Technical field
The utility model relates to a kind of technical field of motors.More particularly to a kind of rotor and the motor with it.
Background technique
Permanent magnet brushless electromotor is mainly by synchronous motor ontology, electronic power inverter, rotor position detector and control
Device composition processed.Wherein, the rotor of synchronous motor is mainly made of permanent magnet and magnetizer etc..Permanent magnet DC brushless motor master
It to be made of permanent magnet motor ontology, rotor-position sensor and electronic commutation circuit.Either structure or control mode, permanent magnetism
DC Brushless Motor and traditional dc motor have many similarities: having brush straight with the rotor substitution equipped with permanent magnet
The magnetic pole of the stator of galvanic electricity motivation；Replace armature with the stator with polyphase windings；With by solid-state inverter and shaft position detector
The electronic commutator of composition replaces mechanical commutator and brush.
Traditional brushless, permanently excited direct current motor is magnetized magnet steel using Surface Mount magnet steel or built-in radial, in practical application
In, under limited motor volume, the output power of Yao Zeng great motor, radial magnetizes structure electric machine by motor body
Product limitation cannot provide enough magnetic fluxs.And two pieces of magnet steel parallel connections may be implemented to provide magnetic flux in spoke type magnetic steel structure rotor,
Air-gap flux is significantly improved, output power of motor is increased.Existing spoke type magnetic steel structure rotor has the disadvantage in that
Leakage field is serious, and magnet steel utilization rate is low.
Utility model content
For the defects in the prior art, the purpose of the utility model is to provide a kind of using spoke type magnetic steel structure forever
Magnetic brushless direct current motor rotor can be effectively reduced the leakage field of motor and can effectively enhance the mechanical strength of rotor.
It is provided in a kind of rotor, including shaft, rotor core and the insertion rotor core according to the utility model
Multi-disc magnet steel, the multi-disc magnet steel in spoke type be provided with along the rotor core circumferential array, the rotor core it is more
The first rotor punching and the second rotor punching that piece is staggeredly superimposed.
The first rotor punching is equipped with multiple magnetic slots along the rotor core circumferential direction, and the magnetic slot is from described
Rotor core periphery radially sequentially forms ringent first connecting portion, rectangle towards the rotor core internal stretch
Portion, second connecting portion and space part, form core portion between adjacent two magnetic slot, and the core portion is from the rotor core
Periphery is formed at relatively narrow magnetic flux saturation between the space part of adjacent two magnetic slot in such a way that circumferential width becomes narrow gradually.
Further, second rotor punching is equipped with multiple magnetic slots, the magnetic along the rotor core circumferential direction
Steel tank is in rectangle, and the magnetic slot and the rotor core periphery form silent portion, and the magnetic slot is to be open towards inside.
Further, the outer circle of the first rotor punching and the outer circle of second rotor punching are by multistage decentraction
Arc section composition.
Further, the multi-disc magnet steel is arranged in the magnetic slot, and the length of the magnetic slot long side is L1, described
The length of multi-disc magnet steel long side is h, L1≤h.
Further, second rotor punching of multi-disc is always superimposed thickness and is always superimposed thickness no more than the rotor core
50%.
Further, the first rotor punching and the second rotor punching monolithic punching with a thickness of t, t >=
0.5mm。
Further, the material of the first rotor punching and second rotor punching is silicon steel sheet, the multi-disc
The material of magnet steel is neodymium iron boron.
Further, the space part is filled with air or other non-magnet materials.
The utility model also provides a kind of motor, including motor stator and rotor, the motor stator coaxial sleeve
It is located on the outside of the rotor, the motor stator is assembled piece type or straight strip type chip connecting structure.
Compared with prior art, the utility model is with following the utility model has the advantages that rotor core is pressed by two kinds of rotor punchings
It is staggeredly superimposed composition according to certain the piece number ratio, rotor leakage can be effectively reduced, improves motor performance.In addition on rotor punching
Equipped with multiple protrusions or silent portion, so that rotor, in the case where running at high speed, magnet steel will not be thrown away.Rotor punching outer circle
It is made of the arc section of multistage decentraction, forms non-uniform gap, hence it is evident that reduced the cogging torque of motor, improve motor fortune
Capable stability.It is at least silicon steel sheet of 0.5mm or more that single-sheet thickness, which can be used, in rotor punching, it is preferred to use one-sided thickness is
The silicon steel sheet of 0.5mm greatly reduces the difficulty of processing of rotor punching, improves the service life of process equipment.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the schematic diagram of the utility model electric motor structure；
Fig. 2 is the structural schematic diagram of the utility model the first rotor punching；
Fig. 3 is the structural schematic diagram of the second rotor punching of the utility model；
Fig. 4 is the schematic perspective view of the utility model rotor.
Wherein, appended drawing reference are as follows: 1- rotor core, 1a- the first rotor punching, the second rotor punching of 1b-, 2- magnetic slot,
2a- first connecting portion, 2b- rectangular portion, 2c- second connecting portion, 2d- space part, the silent portion 2d-, 3- multi-disc magnet steel, 4- shaft,
5- magnetic core portion, at 6- magnetic flux saturation.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model a part, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered
When the range for belonging to the utility model protection.
" one embodiment " or " embodiment " referred to herein, which refers to, may be included at least one realization side of the utility model
A particular feature, structure, or characteristic in formula.In the description of the present invention, it should be understood that term " on ", "top",
"bottom", etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description this
Utility model and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " are only used
In description purpose, it is not understood to indicate or imply relative importance or implicitly indicates the number of indicated technical characteristic
Amount." first " is defined as a result, the feature of " second " can be expressed or what is implied includes one or more of the features.
Moreover, term " first ", " second " etc. are to be used to distinguish similar objects, without for describing specific sequence or successive time
Sequence.It should be understood that the data used in this way are interchangeable under appropriate circumstances, so as to the implementation of the utility model described herein
Example can be performed in other sequences than those illustrated or described herein.
Embodiment 1:
As shown in Figures 1 to 4, the embodiment of the present invention provides a kind of rotor, including shaft 4, rotor core 1 and insertion
Multi-disc magnet steel 3 in the rotor core 1, the multi-disc magnet steel 3 is in spoke type along 1 circumferential array of rotor core, described
The first rotor punching 1a and the second rotor punching 1b that multi-disc is staggeredly superimposed are provided in rotor core 1.
The rotor core 1 is punched into regulation shape by multi-disc electromagnetic steel plate and is formed.The preferred silicon steel sheet of electromagnetic steel plate,
Magnetic strength is high, iron loss is low, advantageously reduces the loss of motor.It is set on the rotor core 1 along 1 circumferential direction of rotor core
Multiple multiple magnetic slots 2 in spoke structure arrangement are equipped with, are inserted into multi-disc magnet steel 3,3 shape of magnet steel in multiple magnetic slots 2
Shape is rectangle, facilitates processing.The magnet steel 3 selects excellent neodymium iron boron class material, and the air-gap flux of motor can be improved, and improves motor
Output power.The polarity on 3 two sides of monolithic magnet steel is on the contrary, the polarity in adjacent two magnet steel 3 face facing with each other is identical, so that multi-disc
Magnet steel 3 is in parallel to provide magnetic flux, hence it is evident that improves air-gap flux, increases output power of motor.Shaft 4 is arranged in rotor core
1 central part enables rotor to rotate freely and exports electromagnetic torque.
Rotor core 1 includes the first rotor punching 1a and the second rotor punching 1b.The first rotor punching 1a is along described
1 circumferential direction of rotor core is equipped with multiple magnetic slots 2, and the magnetic slot 2 is from the periphery of the rotor core 1 radially court
Ringent first connecting portion 2a, rectangular portion 2b, ringent second prominent is sequentially formed to the internal stretch of the rotor core 1
Play portion 2c, space part 2d.The presence of the first connecting portion 2a makes rotor when rotating at high speed, and multi-disc magnet steel 3 will not be got rid of
Out, the presence of the second connecting portion 2b makes the magnet steel 3 fixed without play occurs in the position of rectangular portion 2b.
Between adjacent two magnetic slot 3 formed core portion 5, core portion 5 from 1 periphery of rotor core with circumferential width gradually
The mode to narrow formed between the space part 3c of adjacent two magnetic slot 36 at relatively narrow magnetic flux saturation, and 6 deposit at magnetic flux saturation
Magnetic flux density is being made to tend to be saturated at this.Considering from rotor leakage is reduced, the narrower 6 width the better at magnetic flux saturation, but
Narrow mechanical strength can be deteriorated, and the width for comprehensively considering at the magnetic flux saturation 6 is limited in a certain range.The presence of space part 3c
Play the role of further decreasing rotor leakage.
As shown in figure 3, the second rotor punching 1b is equipped with multiple magnetic slots 2 along the circumferential direction of the rotor core 1,
The magnetic slot 2 is in rectangle, and the magnetic slot 2 forms silent portion 2e, 2 direction of the magnetic slot with 1 periphery of rotor core
Internal rotor is opening.The silent portion 2e can enhance the mechanical strength of 1 periphery of rotor core.Second rotor punching 1b direction turns
Sub- inside is set as being open, and assumes that the length of 2 long side of rectangle magnetic slot of the second rotor punching 1b is L1, the rectangle magnetic
The length of the long side of steel 3 is h, meets L1≤h.Setting can effectively reduce the leakage that magnet steel 3 flows to the inside of rotor core 1 in this way
Magnetic.
Preferably, the second rotor punching 1b is always superimposed thickness and is always superimposed thickness no more than the rotor core 1
50%.Make at the magnetic flux saturation of rotor core 16 mechanical strength sufficiently large in this way and is unlikely to the feelings to run at high speed in rotor
It causes to be broken under condition.Meet the requirement that rotor runs at high speed to meet the mechanical strength of rotor, the second rotor punching 1b is total
Superposition thickness can be further reduced, such as be set as always being superimposed the 20% of thickness no more than the rotor core 1, such rotor core
6 mechanical strength further enhances at 1 magnetic flux saturation.
The outer circle of the first rotor punching 1a and the outer circle of the second rotor punching 1b by multistage decentraction circular arc
Duan Zucheng.Form non-uniform gap, hence it is evident that the cogging torque for reducing motor improves the stability of motor running.
The utility model embodiment also provides a kind of motor, including motor stator and rotor, the motor stator
It is coaxially set on the outside of the rotor, the rotor is freely rotated inside the motor stator, and the motor is fixed
Son is the stator core of assembled piece type or straight strip type structure.Stator punching and rotor punching can be separated in punching in this way, motor
The silicon steel sheet of single-sheet thickness t >=0.5mm can be used in rotor punching, greatly reduces the difficulty of processing of rotor punching, improves and adds
The service life of construction equipment.It is preferred that the thickness t=0.5mm of monolithic rotor punching.
In conclusion the utility model has the following beneficial effects:
Rotor core is handed over by variform multi-disc the first rotor punching and the second rotor punching according to certain the piece number ratio
Mistake superposition composition, can be effectively reduced rotor leakage, improves motor performance.In addition punching is equipped with multiple protrusions or silent
Portion, so that rotor, in the case where running at high speed, magnet steel will not be thrown away.Punching outer circle by multistage decentraction arc section group
At formation non-uniform gap, hence it is evident that the cogging torque for reducing motor improves the stability of motor running.Described first turn
It is at least silicon steel sheet of 0.5mm or more that single-sheet thickness, which can be used, in sub- punching and the second rotor punching, it is preferred to use one-sided thickness is
The silicon steel sheet of 0.5mm greatly reduces the difficulty of processing of rotor punching, improves the service life of process equipment.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of rotor, it is characterised in that: including shaft (4), rotor core (1) and be inserted into the rotor core (1)
Interior multi-disc magnet steel (3), the multi-disc magnet steel (3) is in spoke type along the rotor core (1) circumferential array, the rotor core
(1) the first rotor punching (1a) and the second rotor punching (1b) that multi-disc is staggeredly superimposed are provided in.
2. a kind of rotor according to claim 1, it is characterised in that: the first rotor punching (1a) is along described turn
Sub- iron core circumferential direction be equipped with multiple magnetic slots (2), the magnetic slot (2) from the rotor core (1) periphery radially
Ringent first connecting portion (2a), rectangular portion (2b), second connecting portion are sequentially formed towards the rotor core (1) internal stretch
(2c) and space part (2d) forms core portion (5) between adjacent two magnetic slot (2), and the core portion (5) is from the rotor
Iron core (1) periphery forms between the space part (2d) of adjacent two magnetic slot (2) relatively narrow in such a way that circumferential width becomes narrow gradually
Magnetic flux saturation at (6).
3. a kind of rotor according to claim 1, it is characterised in that: second rotor punching (1b) is along described turn
Sub- iron core (1) circumferential direction be equipped with multiple magnetic slots (2), the magnetic slot (2) be in rectangle, the magnetic slot (2) with described turn
Sub- iron core (1) periphery forms silent portion, and the magnetic slot (2) is to be open towards inside.
4. a kind of rotor according to claim 1, it is characterised in that: the outer circle of the first rotor punching (1a) and
The outer circle of second rotor punching (1b) is made of the arc section of multistage decentraction.
5. a kind of rotor according to claim 3, it is characterised in that: the multi-disc magnet steel (3) is arranged in the magnetic
In steel tank (2), the length of magnetic slot (2) long side is L1, and the length of multi-disc magnet steel (3) long side is h, L1≤h.
6. a kind of rotor according to claim 1, it is characterised in that: second rotor punching of multi-disc (1b) is always folded
It adds thickness and is always superimposed the 50% of thickness no more than the rotor core (1).
7. a kind of rotor according to claim 1, it is characterised in that: the first rotor punching (1a) and described
Two rotor punchings (1b) monolithic punching with a thickness of t, t >=0.5mm.
8. a kind of rotor according to claim 1, it is characterised in that: the first rotor punching (1a) and described
The material of two rotor punchings (1b) is silicon steel sheet, and the material of the multi-disc magnet steel (3) is neodymium iron boron.
9. a kind of rotor according to claim 2, it is characterised in that: the space part (2d) filled with air or its
Its non-magnet material.
10. a kind of motor, it is characterised in that: the motor includes any one of motor stator and claim 1 to 9 institute
The rotor stated, the motor stator are coaxially set on the outside of the rotor, and the motor stator is for assembled piece type or directly
Formula chip connecting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119234.4U CN209282957U (en) | 2018-12-17 | 2018-12-17 | A kind of rotor and the motor with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119234.4U CN209282957U (en) | 2018-12-17 | 2018-12-17 | A kind of rotor and the motor with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209282957U true CN209282957U (en) | 2019-08-20 |
Family
ID=67611784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822119234.4U Active CN209282957U (en) | 2018-12-17 | 2018-12-17 | A kind of rotor and the motor with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209282957U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350694A (en) * | 2019-08-21 | 2019-10-18 | 苏州金莱克汽车电机有限公司 | A kind of low noise and the strong permanent magnet synchronous AC motor of fan-out capability |
| CN112039237A (en) * | 2020-09-03 | 2020-12-04 | 珠海格力电器股份有限公司 | Rotor core, rotor and motor |
| CN113659746A (en) * | 2021-10-18 | 2021-11-16 | 天津众科科技发展有限公司 | Rotor punching sheet group, rotor iron core, rotor and motor |
-
2018
- 2018-12-17 CN CN201822119234.4U patent/CN209282957U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350694A (en) * | 2019-08-21 | 2019-10-18 | 苏州金莱克汽车电机有限公司 | A kind of low noise and the strong permanent magnet synchronous AC motor of fan-out capability |
| CN112039237A (en) * | 2020-09-03 | 2020-12-04 | 珠海格力电器股份有限公司 | Rotor core, rotor and motor |
| CN113659746A (en) * | 2021-10-18 | 2021-11-16 | 天津众科科技发展有限公司 | Rotor punching sheet group, rotor iron core, rotor and motor |
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