CN107317414B - A kind of compound groove profile rotor and motor - Google Patents
A kind of compound groove profile rotor and motor Download PDFInfo
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- CN107317414B CN107317414B CN201710629205.XA CN201710629205A CN107317414B CN 107317414 B CN107317414 B CN 107317414B CN 201710629205 A CN201710629205 A CN 201710629205A CN 107317414 B CN107317414 B CN 107317414B
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- 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
- H02K1/26—Rotor cores with slots for windings
- H02K1/265—Shape, form or location of the slots
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of compound groove profile rotors, it is related to technical field of motors, compound groove profile rotor includes circular rotor punching ontology, several rotor slots are radially evenly distributed on the excircle of rotor punching ontology, conducting bar is equipped in rotor slot, rotor slot is to be sequentially communicated the composite slot formed by starting slot and operating slot, slot position is operated in one end close to rotor punching body central axis, start one end that slot is located remotely from the rotor punching body central axis, starting slot is round slot, it starts groove top end and offers the first notch, operating slot is approximate rectangular slot, two sides for operating slot are symmetrical ellipse shape concave surface.The present invention can be by changing the size and shape for starting slot and operating slot, and then changes motor performance, meets different running environment and performance requirement, reduces the manufacturing cost of motor rotor punching sheet, improve production efficiency.
Description
Technical field
The present invention relates to technical field of motors, and in particular to a kind of compound groove profile rotor and motor.
Background technique
At present in the production and living of people, many kinds of, different type, different capacity, the different performance of driving motor
Rotor slot shape of rotor design it is different, and the rotor of different model requires different rotor mold systems
It makes, increases the complexity of rotor punching mould manufacture, increase production cost, meanwhile, the rotor slot of existing rotor
That there are magnetic flux leakages is serious for type, and starting torque is small, and power factor is low, electric efficiency cannot being optimal, the performance of motor has
Wait improve.
Summary of the invention
The purpose of the present invention is to provide a kind of rotors with compound groove profile, to solve to deposit in above-mentioned background technique
Because motor type, power, performance difference due to the rotor punching mould that generates is excessive, manufacture is complicated technical problem, energy
The utilization rate of rotor mold is enough effectively improved, rotor parameters in rotor is improved, improves motor performance.
To achieve the goals above, this invention takes following technical solutions:
A kind of compound groove profile rotor, including circular rotor punching ontology, the outer circle of the rotor punching ontology
Radially be evenly distributed with several rotor slots on week, be equipped with conducting bar in the rotor slot, the rotor slot be by starting slot and
Operating slot is sequentially communicated the composite slot of composition, and the operating slot position is in one end close to the rotor punching body central axis, institute
It states and starts one end that slot is located remotely from the rotor punching body central axis.
Further, the starting slot is round slot, and the starting groove top end offers the first notch, and the operating slot is
Two sides of rectangular channel, the operating slot are symmetrical ellipse shape concave surface.
Further, the quantity of the operating slot is three, the first operating slot for being respectively sequentially communicated from outside to inside, the
Two operating slots, third operate slot.
Further, first notch and connection it is described start slot with it is described first operate slot the second notch, be connected to
The first operating slot operates the third notch of slot with described second, is connected to the second operating slot and third operating slot
4th notch is rectangular notch.
Further, the ratio between the depth of first notch and width are 0.3~0.5, the radius for starting slot and institute
Stating the ratio between depth of the first notch is 1.5~2.5.
Further, first notch, the second notch, third notch, the 4th notch width be equal, described first
Notch, third notch, the 4th notch depth be equal, the depth of second notch is equal with the starting radius of slot.
Further, the depth of the first operating slot and the ratio between the depth of ellipse shape concave surface of the first operating slot are 4,
The depth of the ellipse shape concave surface of the second operating slot and the ratio between the depth of ellipse shape concave surface of the first operating slot are 0.5, described
Third operates the deep equality of the depth of the ellipse shape concave surface of slot and the ellipse shape concave surface of the second operating slot.
Further, the depth of first operating slot (202) are as follows:
h1=0.4 × [(0.1~0.35) × (D2-D3)-(4.8~8) × b02],
The depth of second operating slot (203) are as follows:
h2=0.3 × [(0.1~0.35) × (D2-D3)-(4.8~8) × b02],
The depth of third operating slot (204) are as follows:
h3=0.25 × [(0.1~0.35) × (D2-D3)-(4.8~8) × b02],
The width of first operating slot (202) are as follows:
b1=π × [D2(8~14.4) × b02]/3×Z2,
The width of second operating slot (203) are as follows:
b2=π × [D2(8~14.4) × b02]/4×Z2,
The width of third operating slot (204) are as follows:
b3=π × [D2(8~14.4) × b02]/6×Z2,
Wherein, D2Indicate the outer diameter of rotor punching ontology (1), D3Indicate the internal diameter of rotor punching ontology (1), b02Indicate the
The width of two notches (302), Z2Indicate rotor slot number, π indicates pi.
Further, the width b of second notch (302)02For 1.5~2mm.
The invention further relates to a kind of motors, including such as above-mentioned compound groove profile rotor.
The invention has the advantages that: compared with traditional technology, the rotor punching mould of the compound groove profile rotor is manufactured
Simple process facilitates complete production, improves the utilization rate of mold, reduces the production cost of mold complexity and motor, benefit
In the standardization and seriation for realizing rotor groove profile；Rationally match the rotor slot being combined by single compound groove profile, it can
Optimize rotor parameters in rotor starting torque, starting current, power factor, electric efficiency, greatly improves motor performance.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 is a kind of rotor slot structure chart of compound groove profile rotor described in the embodiment of the present invention.
Fig. 2 is a kind of rotor punching structure figure of compound groove profile rotor described in the embodiment of the present invention.
Wherein: 1- rotor punching ontology；2- rotor slot；201- starts slot；The first notch of 301-；202- first operates slot；
203- second operates slot；204- third operates slot；302 second notches；303- third notch；The 4th notch of 304-.
Specific embodiment
Embodiments of the present invention are described in detail below, and the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and this may also comprise plural form.It is to be further understood that wording used in specification of the invention
" comprising " refers to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition one
Other a or multiple features, integer, step, operation, element and/or their group.It should be understood that when we claim element by " even
Connect " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be cental elements
Part.In addition, " connection " used herein or " coupling " may include being wirelessly connected or coupling.Wording "and/or" used herein
Including one or more associated any cells for listing item and whole combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology
Term and scientific term) there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Also answer
It should be appreciated that those terms such as defined in the general dictionary should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
Of the invention for ease of understanding, below in conjunction with attached drawing, with specific embodiment, the present invention will be further explained says
It is bright, and specific embodiment does not constitute the restriction to the embodiment of the present invention.Fig. 1 is compound groove profile electricity described in the embodiment of the present invention
The structure chart of the rotor slot of machine rotor, Fig. 2 are the rotor punching ontology of compound groove profile rotor described in the embodiment of the present invention
Cross-sectional view.It should be appreciated by those skilled in the art that attached drawing is the schematic diagram of embodiment, the component in attached drawing is not necessarily
Implement necessary to the present invention.
As shown in Figure 1 to Figure 2, the embodiment of the invention provides a kind of compound groove profile rotors, turn including circular
Sub- punching ontology 1 is radially evenly distributed with several rotor slots 2, the rotor on the excircle of the rotor punching ontology 1
Conducting bar is equipped in slot 2, the rotor slot 2 is to be sequentially communicated the composite slot formed, the operating slot by starting slot 201 and operating slot
Positioned at one end close to the rotor punching body central axis, the starting slot is located remotely from the rotor punching body central axis
One end.
In one particular embodiment of the present invention, the starting slot 201 is round slot, and the starting groove top end offers
First notch 301, the operating slot are rectangular channel, and two sides of the operating slot are symmetrical ellipse shape concave surface.
In one particular embodiment of the present invention, the quantity of the operating slot is three, respectively from outside to inside successively
First operating slot 202, second of connection operates slot 203, third operates slot 204.
In one particular embodiment of the present invention, first notch 301 and the connection starting slot 201 with it is described
The third notch of second notch 302 of the first operating slot 202, the connection first operating slot 202 and the second operating slot 203
303, the 4th notch 304 for being connected to the second operating slot 203 and third operating slot 204 is rectangular notch.
In one particular embodiment of the present invention, the ratio between the depth of first notch 301 and width be 0.3~
0.5, the ratio between the radius for starting slot 201 and the depth of first notch 301 are 1.5~2.5.
In one particular embodiment of the present invention, first notch 301, the second notch 302, third notch 303,
The width of four notches 304 is equal, first notch 301, third notch 303, the 4th notch 304 depth be equal, institute
The depth for stating the second notch 302 is equal with the starting radius of slot 201.
In one particular embodiment of the present invention, the depth of the first operating slot 202 and the first operating slot 202
The ratio between the depth of ellipse shape concave surface be 4, the depth of the ellipse shape concave surface of the second operating slot 203 and the first operating slot 202
The ratio between the depth of ellipse shape concave surface be 0.5, the depth of the ellipse shape concave surface of the third operating slot 204 and the second operating slot
The deep equality of 203 ellipse shape concave surface.
In one particular embodiment of the present invention,
It is described first operating slot 202 depth be
h1=0.4 × [(0.1~0.35) × (D2-D3)-(4.8~8) × b02],
It is described second operating slot 203 depth be
h2=0.3 × [(0.1~0.35) × (D2-D3)-(4.8~8) × b02],
The depth of third operating slot 204 is
h3=0.25 × [(0.1~0.35) × (D2-D3)-(4.8~8) × b02],
It is described first operating slot 202 width be
b1=π × [D2(8~14.4) × b02]/(3×Z2),
It is described second operating slot 203 width be
b2=π × [D2(8~14.4) × b02]/(4×Z2),
The width of third operating slot 204 is
b3=π × [D2(8~14.4) × b02]/(6×Z2),
Wherein, D2Indicate the outer diameter of rotor punching ontology 1, D3Indicate the internal diameter of rotor punching ontology 1, b02Indicate the second slot
The width of mouth 302, Z2Indicate rotor slot number, π indicates pi.
In one particular embodiment of the present invention, the width b of second notch 30202For 1.5~2mm.
The embodiment of the present invention further relates to a kind of motor, which includes above-mentioned compound groove profile rotor.
In practical applications, for common 7.5kW asynchronous motor, the wherein outer diameter D of rotor2For 135.20mm, turn
The internal diameter D of son3For 48mm, the slot number Z of the rotor slot 2 of rotor2Be 32, according to above-mentioned rotor parameters in rotor require processing obtain as
Motor rotor punching sheet figure shown in Fig. 2, wherein rotor yoke height hj2=(0.15~0.4) × (D2-D3)=(0.15~0.4)
× (135.20-48)=13.08mm~34.88mm, the rotor yoke height are that third operates in the bottom surface to rotor of slot 204
The distance of circumference considers original motor slot shape of rotor height, takes hj2=0.23 × (135.20-48)=20.06mm；Rotor slot 2
The value range of parameters and preferred value are as follows:
The width b of second notch 30202For 1.5mm~2mm, it is preferred that b02For 1.5mm；The depth of second notch 302
h02For (1.5~2.5) × b02=2.25mm~3.75mm, it is preferred that h02For 2.25mm；The depth h of first notch01It is (0.3
~0.5) × b02=0.45mm~0.75mm, it is preferred that h01For 0.5mm；The width b of first operating slot 2021=it is π × (D2-
4R-2h01-2h02)/(3×Z2)=π × (135.20-4 × 2.25-2 × 0.5-2 × 2.25)/(3 × 32)=3.95mm,
In, R is the radius for starting slot 201, h01For the depth of the first notch 301, and R=h02；The depth h of first operating slot 2021For
0.4×[(D2-D3)/2- hj2-2R-h01-h02]=0.4 × [(135.20-48)/2-20.06-2 × 2.25-0.5-2.25]=
6.516mm；The depth b of the ellipse shape concave surface of first operating slot 20211For b1/ 4=0.988mm.
The width b of third notch 30303Equal to the width b of the second notch02For 1.5mm；The depth h of third notch03It is equal to
The depth h of first notch01For 0.5mm；
The width b of second operating slot 2032For π × (D2-4R-2h01-2h02)/(4×Z2)=π × (135.20-4 ×
2.25-2 × 0.5-2 × 2.25)/(4 × 32)=2.96mm；
The depth h of second operating slot 2032For 0.3 × [(D2-D3)/2-hj2-2R-h01-h02]=0.3 × [(135.20-
48)/2-20.06-2 × 2.25-0.5-2.25]=4.89mm；
The depth b of the ellipse shape concave surface of second operating slot 20321=b11/ 2=0.494mm；
The width b of third operating slot 2043=π × (D2-4R-2h01-2h02)/(6×Z2)=π × (135.20-4 ×
2.25-2 × 0.5-2 × 2.25)/(6 × 32)=1.97mm；
The depth h of third operating slot 2043For 0.25 × [(D2-D3)/2-hj2-2R-h01-h02]=0.25 ×
[(135.20-48)/2-20.06-2 × 2.25-0.5-2.25]=4.07mm；
Third operates the depth b of the ellipse shape concave surface of slot 20431=b11/ 2=0.494mm.
When using traditional parallel slot rotor, electric efficiency 88.31%, starting torque multiple are 2.267, start
Electric current multiple is 6.981, power factor 0.865, and when using compound groove profile rotor of the present invention, electric efficiency is
89.32%, starting torque multiple be 2.551, starting current times 6.101, power factor 0.860.
In conclusion the compound groove profile rotor slot 2 of the embodiment of the present invention is in electric motor starting, the rotary power of rotor
It is mainly provided by starting slot 201, after rotor stability rotation, due to the effect of skin effect, starts the conducting bar electricity in slot 201
Stream is offset by induced current, and operating power is negligible, at this point, the rotary power of rotor is mainly provided by operating slot, is started
Slot 201, first operates the operating of slot 202, second slot 203, third operating slot 204 is sequentially communicated from outside to inside, improves motor
Starting torque multiple reduces starting current times, and so as to avoid being greatly reduced for motor power factor, electric efficiency is also
It is promoted, meanwhile, reduce motor mold processing and manufacturing cost.
Those of ordinary skill in the art will appreciate that: the component in device in the embodiment of the present invention can be according to embodiment
Description be distributed in the device of embodiment, corresponding change can also be carried out and be located at one or more dresses different from the present embodiment
In setting.The component of above-described embodiment can be merged into a component, can also be further split into multiple subassemblies.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (6)
1. a kind of compound groove profile rotor, the rotor punching ontology (1) including annular shape, the rotor punching ontology (1)
It is radially evenly distributed on excircle several rotor slots (2), conducting bar is equipped in the rotor slot, it is characterised in that: described
Rotor slot (2) is to be sequentially communicated the composite slot formed by starting slot (201) and operating slot, and the operating slot position turns in close to described
One end of sub- punching body central axis, described one end for starting slot (201) and being located remotely from the rotor punching body central axis；
The starting slot (201) is round slot, and the starting groove top end offers the first notch (301), and the operating slot is square
Two sides of shape slot, the operating slot are symmetrical ellipse shape concave surface；
The quantity of the operating slot is three, and first be respectively sequentially communicated from outside to inside operates slot (202), the second operating slot
(203), third operating slot (204)；
First notch (301) and connection second notch for starting slot (201) and first operating slot (202)
(302), first operating slot (202) is connected to described second to operate the third notch (303) of slot (203), be connected to described the
4th notch (304) of two operatings slot (203) and third operating slot (204) is rectangular notch；
The ratio between the depth of first notch (301) and width are 0.3~0.5, the radius for starting slot (201) and described the
The ratio between depth of one notch (301) is 1.5~2.5.
2. compound groove profile rotor according to claim 1, it is characterised in that: first notch (301), the second slot
Mouthful (302), third notch (303), the 4th notch (304) width be equal, first notch (301), third notch
(303), the depth of the 4th notch (304) is equal, the depth of second notch (302) and the half of starting slot (201)
Diameter is equal.
3. compound groove profile rotor according to claim 2, it is characterised in that: the depth of first operating slot (202)
Degree and the ratio between the depth of ellipse shape concave surface of first operating slot (202) are 4, the ellipse shape concave surface of second operating slot (203)
Depth and the ratio between depth of ellipse shape concave surface of first operating slot (202) be 0.5, third operating slot (204) it is ellipse
The deep equality of the ellipse shape concave surface of the depth of shape concave surface and second operating slot (203).
4. compound groove profile rotor according to claim 3, it is characterised in that:
It is described first operating slot (202) depth be
h1=0.4 × [(0.1~0.35) × (D2-D3)-(4.8~8) × b02],
It is described second operating slot (203) depth be
h2=0.3 × [(0.1~0.35) × (D2-D3)-(4.8~8) × b02],
The depth of third operating slot (204) is
h3=0.25 × [(0.1~0.35) × (D2-D3)-(4.8~8) × b02],
It is described first operating slot (202) width be
b1=π × [D2(8~14.4) × b02]/3×Z2,
It is described second operating slot (203) width be
b2=π × [D2(8~14.4) × b02]/4×Z2,
The width of third operating slot (204) is
b3=π × [D2(8~14.4) × b02]/6×Z2,
Wherein, D2Indicate the outer diameter of rotor punching ontology (1), D3Indicate the internal diameter of rotor punching ontology (1), b02Indicate the second slot
The width of mouth (302), Z2Indicate rotor slot number, π indicates pi.
5. compound groove profile rotor according to claim 4, it is characterised in that: the width of second notch (302)
b02For 1.5~2mm.
6. a kind of motor, it is characterised in that: including compound groove profile rotor as described in any one in claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710629205.XA CN107317414B (en) | 2017-07-28 | 2017-07-28 | A kind of compound groove profile rotor and motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710629205.XA CN107317414B (en) | 2017-07-28 | 2017-07-28 | A kind of compound groove profile rotor and motor |
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| Publication Number | Publication Date |
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| CN107317414A CN107317414A (en) | 2017-11-03 |
| CN107317414B true CN107317414B (en) | 2019-02-15 |
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| CN202565046U (en) * | 2012-03-12 | 2012-11-28 | 李学刚 | Abacus piece type motor rotor groove shape |
| CN204517526U (en) * | 2015-04-27 | 2015-07-29 | 珠海凌达压缩机有限公司 | Rotor punching, motor and compressor |
| KR101801125B1 (en) * | 2015-12-30 | 2017-12-20 | 주식회사 효성 | Structure of induction motor rotor |
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Application publication date: 20171103 Assignee: JIANGSU WELTELL MOTOR CO.,LTD. Assignor: Beijing Jiaotong University Contract record no.: X2021990000831 Denomination of invention: A composite slot motor rotor and motor Granted publication date: 20190215 License type: Exclusive License Record date: 20211229 |
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