CN201854103U - Stator core and motor - Google Patents

Stator core and motor Download PDF

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Publication number
CN201854103U
CN201854103U CN2010206145849U CN201020614584U CN201854103U CN 201854103 U CN201854103 U CN 201854103U CN 2010206145849 U CN2010206145849 U CN 2010206145849U CN 201020614584 U CN201020614584 U CN 201020614584U CN 201854103 U CN201854103 U CN 201854103U
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CN
China
Prior art keywords
stator
driving
pull bar
coil
punching
Prior art date
Application number
CN2010206145849U
Other languages
Chinese (zh)
Inventor
石永进
钟绍辉
崔皓
俞文斌
Original Assignee
永济新时速电机电器有限责任公司
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Application filed by 永济新时速电机电器有限责任公司 filed Critical 永济新时速电机电器有限责任公司
Priority to CN2010206145849U priority Critical patent/CN201854103U/en
Application granted granted Critical
Publication of CN201854103U publication Critical patent/CN201854103U/en

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Abstract

The utility model discloses a stator core and a motor. The stator core comprises a plurality of stator punching pieces, a driving end motor base plate, a non-driving end motor base plate, a stator pressure washer and a stator draw bar, wherein each stator punching piece is respectively provided with a coil notch and a fixed orifice; the stator draw bar is fixed between the driving end motor base plate and the non-driving end motor base plate, the stator punching pieces are buckled with the stator draw bar via the fixed orifices and are laminated along the axial direction of the stator draw bar, the coil notches arranged on each stator punching piece form a coil groove, and the fixed orifices arranged on each stator punching piece form a fixed groove; and the inclination angle of the stator draw bard is as the same as that of the coil groove. The technical scheme disclosed by the utility model adopts the location structure of a diagonal member, and thereby ensuring the lamination quality of a chute iron core, simplifying the lamination technology of the stator punching piece, and having a low punching cost and a high production efficiency.

Description

Stator core and motor

Technical field

The utility model relates to the technology that laminates in the motor stator core, particularly relates to a kind of stator core and motor.

Background technology

Stator core is the important composition member in the motor, generally is that a plurality of stator punchings are laminated, and then the stator punching two ends after laminating are fixed by stator pressing ring with driving end support former and non-transmision end support former, as stator core.Be connected with the stator pull bar between two formers, a plurality of stator punchings specifically are to laminate fixing along the stator pull bar.

Usually, the inboard of stator core is provided with the coil groove that is used to place coil, for weakening the slot ripples electromotive force, generally adopts the flume structure of coil groove with respect to the vertical axis inclination certain angle of stator core.When adopting the stator punching laminated structure, just need be offset an angle [alpha] (α determines according to the concrete relevant parameter of motor) with respect to radial centre lines at the coil notch of each stator punching.

The outside of stator core also is provided with the holddown groove that is used to locate.When a plurality of stator punchings are laminated, the fixing hole on each stator punching engaged along the stator pull bar laminate stator punching, a plurality of fixing holes constitute holddown grooves, can lock engaging to each stator punching.

But, the defective that prior art exists is, the coil groove of stator core has certain angle of inclination, require angle of stator punching radial centre lines skew of the stator punching every layer of relative front of stator punching radial centre lines one deck when punching out, and each layer punching will be piled up by laminating the order label, can not be chaotic.Therefore, blanking equipment requires to have the numerical control notching press of precision round subsection, involves great expense stamping-out cost height; Stator punching must laminate successively by stamping-out label order when laminating, and useless sheet occurring can not in time replenish, and production efficiency is low.

The utility model content

The utility model provides a kind of stator core and motor, laminates and punching process with simplification.

The utility model provides a kind of stator core, comprises a plurality of stator punchings, driving end support former, non-transmision end support former, stator pressing ring and stator pull bar, wherein:

Be respectively arranged with coil notch and fixing hole on each described stator punching;

Described stator pull bar is fixed between described driving end support former and the non-transmision end support former, described stator punching by fixing hole with engaging of stator pull bar along described stator pull rod shaft to laminating, constitute the coil groove by the coil notch that is provided with on each stator punching, constitute holddown groove by the fixing hole that is provided with on each stator punching;

The angle of inclination of described stator pull bar is identical with the angle of inclination of described coil groove.

Aforesaid stator core, preferably: described stator pull bar passes the through hole of stator pressing ring on described driving end support former and the non-transmision end support former respectively and fixes by nut, be provided with lock washer between described nut and each former, and the coupling of the gap width between the thickness of lock washer and nut and the former.

Aforesaid stator core, preferably: described driving end support former and described stator pressing ring are provided with anti-rotation groove at a side surface place of described through hole, and the scope of described anti-rotation groove exceeds the scope of described through hole; Described lock washer is placed in the described anti-rotation groove, with the contour shape coupling of described anti-rotation groove.

The utility model also provides a kind of motor, comprises rotor assembly, wherein: also comprise the stator core that the utility model any embodiment is provided.

Stator core provided by the utility model and electrode adopt pull bar sloped position skewed slot, and it is simple to laminate technology; The stator punching size is consistent with structure, only needs can finish stamping-out on common punch press, and the stamping-out cost is low; Occur useless sheet when laminating and in time to replenish the production efficiency height.

Description of drawings

Fig. 1 is the structural representation of stator punching in the utility model embodiment stator core;

The structural representation of the stator core that Fig. 2 is provided for the utility model embodiment;

Fig. 3 is the structure for amplifying schematic diagram in the circle among Fig. 2.

Reference numeral:

1-driving end support former; The 2-stator punching; 3-non-transmision end support former;

The 4-stator pressing ring; The 5-lock washer; The 6-nut;

7-stator pull bar; The 8-alignment pin; The 9-anti-rotation groove;

21-coil notch; The 22-fixing hole; 10-coil groove;

The 11-holddown groove.

Embodiment

Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.

The structural representation of the stator core that Fig. 2 provides for the utility model embodiment comprises a plurality of stator punchings 2, driving end support former 1, non-transmision end support former 3, stator pressing ring 4 and stator pull bar 7.Fig. 1 is the structural representation of stator punching in the utility model embodiment stator core.

Be illustrated in figure 1 as a stator punching 2 in the present embodiment, its shape can be for fan-shaped, perhaps can also for circular or other can laminate into the shape of iron core.Be respectively arranged with coil notch 21 and fixing hole 22 on each stator punching 2.So-called coil notch 21 can constitute the coil groove to place the notch of coil by laminating stator punching 2.So-called fixing hole promptly is used for each stator punching 2 is locked the structure of engaging with respect to stator pull bar 7 when laminating stator punching 2, as shown in Figure 2.

In stator core, stator pull bar 7 is fixed between driving end support former 1 and the non-transmision end support former 3, specifically can be fixed on two formers by stator pressing ring 4.Stator punching 2 axially laminates along stator pull bar 7 with engaging of stator pull bar 7 by fixing hole 22, constitutes coil groove 10 by the coil notch 21 that is provided with on each stator punching 2, constitutes holddown groove 11 by the fixing hole 22 that is provided with on each stator punching 2.The angle of inclination of stator pull bar 7 is identical with the angle of inclination of stator core coil groove 10.

The stator core that present embodiment provided, employing is obliquely installed the stator pull bar, be that the mode of brace is located and laminated stator punching, stator punching laminates along the stator pull bar, because the angle of inclination of stator pull bar is identical with the angle of inclination of coil groove, be that fixing hole is identical with the relative position of coil notch on each stator punching, but the therefore manufacturing dimension stator punching consistent with structure can be met the coil groove that the angle of inclination requires after laminating.Because the size of each stator punching is consistent with structure, so can produce in batches, has reduced production required precision and cost.And in assembling process, also need not to laminate in proper order, thereby improved packaging efficiency according to the setting of different structure stator punching.

On the basis of technique scheme, stator pull bar 7 can pass the through hole (being tie rod hole) of stator pressing ring 4 on driving end support former 1 and the non-transmision end support former 3 and fix by nut 6.Because stator pull bar 7 tilts, so when if the non-leaning thread of stator pull bar 7 ends is connected with nut 6, have a side between nut 6 and driving end support former of being fixed 1 or the non-transmision end support former 3 big gap is arranged, preferably be provided with lock washer 5, lock washer 5 is arranged between nut 6 and the driving end support former 1, and be arranged between nut 6 and the non-transmision end support former 3, and the coupling of the gap width between the thickness of lock washer 5 and nut 6 and the former, thereby nut 6 is fixed, can be guaranteed the angle of inclination of stator pull bar 7.

Further, driving end support former 1 and non-transmision end support former 3 are provided with anti-rotation groove 9 with stator pressing ring 4 at a side surface place of through hole, or can be described as anti-lock washer and rotate kidney slot, the scope of this anti-rotation groove 9 exceeds the scope of through hole, as shown in Figure 3, Fig. 3 is the structure for amplifying schematic diagram of circled among Fig. 2; Lock washer 5 can be placed in the anti-rotation groove 9, with the contour shape coupling of anti-rotation groove 9.Thereby can lock washer 5 be fixed by the edge of anti-rotation groove 9.

The U type that is shaped as of preferred lock washer 5.Lock washer 5 is placed on 9 li of anti-rotation grooves, by having increased anti-rotation groove 9, has increased the stop moment of lock washer 5, thereby has prevented that lock washer 5 is loosening in motor rotation.

When assembling, make through hole on driving end support former 1 and the non-transmision end support former 3 spatially differ the deviation angle of a coil groove 10 by adjustment.When laminating, through hole on through hole on the stator pressing ring 4 and corresponding driving end support former 1 and the non-transmision end support former 3 is fixed with alignment pin 8, guarantee that the driving end support former 1 and the through hole of stator pressing ring 4 spatially differ the deviation angle of a coil groove 10, be that stator core coil groove 10 requires the angle of inclination, the angle of inclination of stator pull bar 7 is δ at this moment, and its size equates with angle [alpha] (being that iron core line ring recess 10 requires the angle of inclination) or be close.When laminating, only need direction that stator punching 2 is tilted along stator pull bar 7, promptly laminate successively and get final product along the direction of the fixing hole 22 of stator punching 2, it is neat with grooved at notch to pass through stator pull bar 7 at last.

The stator core that the utility model embodiment is provided, the consistent size of used stator punching when laminating, only need on common punch press, get final product by stamping-out, saved to use and had the eccentric high precision numerical control notching press stamping-out of adjusting function, and each stator punching need not be piled up by laminating the order label, has reduced the cost of stamping-out and has simplified the technology that laminates; Occurring useless sheet when laminating can in time replenish, and has improved production efficiency.

The utility model embodiment also provides a kind of motor, comprises rotor assembly, also comprises the stator core that the utility model any embodiment is provided.Laminate stator punching owing to adopted brace to assemble, constitute stator core, can effectively enhance productivity, reduce product cost.

It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.

Claims (4)

1. a stator core comprises a plurality of stator punchings, driving end support former, non-transmision end support former, stator pressing ring and stator pull bar, it is characterized in that:
Be respectively arranged with coil notch and fixing hole on each described stator punching;
Described stator pull bar is fixed between described driving end support former and the non-transmision end support former, described stator punching by fixing hole with engaging of stator pull bar along described stator pull rod shaft to laminating, constitute the coil groove by the coil notch that is provided with on each stator punching, constitute holddown groove by the fixing hole that is provided with on each stator punching;
The angle of inclination of described stator pull bar is identical with the angle of inclination of described coil groove.
2. stator core according to claim 1, it is characterized in that: described stator pull bar passes the through hole of stator pressing ring on described driving end support former and the non-transmision end support former respectively and fixes by nut, be provided with lock washer between described nut and each former, and the coupling of the gap width between the thickness of lock washer and nut and the former.
3. stator core according to claim 2 is characterized in that: described driving end support former and described stator pressing ring are provided with anti-rotation groove at a side surface place of described through hole, and the scope of described anti-rotation groove exceeds the scope of described through hole; Described lock washer is placed in the described anti-rotation groove, with the contour shape coupling of described anti-rotation groove.
4. a motor comprises rotor assembly, it is characterized in that: also comprise the arbitrary described stator core of claim 1~3.
CN2010206145849U 2010-11-17 2010-11-17 Stator core and motor CN201854103U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN2010206145849U CN201854103U (en) 2010-11-17 2010-11-17 Stator core and motor

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CN201854103U true CN201854103U (en) 2011-06-01

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102510182A (en) * 2011-11-19 2012-06-20 中电电机股份有限公司 Auxiliary laminating device for segmental stator iron core
CN102891570A (en) * 2011-07-22 2013-01-23 日特机械工程株式会社 Manufacturing device of stator with skewed slots
CN103872813A (en) * 2012-12-11 2014-06-18 上海电气集团上海电机厂有限公司 Motor rotor skewed slot iron core and processing method thereof
CN104760868A (en) * 2015-03-18 2015-07-08 苏州发源地科技发展有限公司 Novel inner rotor permanent magnet synchronizing gearless driving machine structure
CN105162295A (en) * 2015-10-29 2015-12-16 王欣 Motor stator assembly structure and airflow generator with same
CN107276333A (en) * 2017-07-11 2017-10-20 重庆市昊飞机电有限公司 A kind of electric machine iron core processes installation method
CN107516982A (en) * 2017-09-14 2017-12-26 合肥恒大江海泵业股份有限公司 A kind of large-size machine stator punching laminates technique

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102891570A (en) * 2011-07-22 2013-01-23 日特机械工程株式会社 Manufacturing device of stator with skewed slots
CN102891570B (en) * 2011-07-22 2015-01-21 日特机械工程株式会社 Manufacturing device of stator with skewed slots
CN102510182A (en) * 2011-11-19 2012-06-20 中电电机股份有限公司 Auxiliary laminating device for segmental stator iron core
CN102510182B (en) * 2011-11-19 2014-04-09 中电电机股份有限公司 Auxiliary laminating device for segmental stator iron core
CN103872813A (en) * 2012-12-11 2014-06-18 上海电气集团上海电机厂有限公司 Motor rotor skewed slot iron core and processing method thereof
CN104760868A (en) * 2015-03-18 2015-07-08 苏州发源地科技发展有限公司 Novel inner rotor permanent magnet synchronizing gearless driving machine structure
CN105162295A (en) * 2015-10-29 2015-12-16 王欣 Motor stator assembly structure and airflow generator with same
CN107276333A (en) * 2017-07-11 2017-10-20 重庆市昊飞机电有限公司 A kind of electric machine iron core processes installation method
CN107516982A (en) * 2017-09-14 2017-12-26 合肥恒大江海泵业股份有限公司 A kind of large-size machine stator punching laminates technique

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110601

Termination date: 20161117

CF01 Termination of patent right due to non-payment of annual fee