CN101873022B - AC motor structure capable of eliminating stator core buckle slab external squirrel cage effect - Google Patents
AC motor structure capable of eliminating stator core buckle slab external squirrel cage effect Download PDFInfo
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- CN101873022B CN101873022B CN2010102042585A CN201010204258A CN101873022B CN 101873022 B CN101873022 B CN 101873022B CN 2010102042585 A CN2010102042585 A CN 2010102042585A CN 201010204258 A CN201010204258 A CN 201010204258A CN 101873022 B CN101873022 B CN 101873022B
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- stator core
- cramp
- squirrel cage
- motor structure
- cage effect
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Abstract
The invention relates to a field of an AC motor design and manufacture, in particular to an AC motor structure capable of eliminating stator core buckle slab external squirrel cage effect. Insulating layers are respectively arranged between a stator core buckle slab and a stator core and between the stator core buckle slab and a core clamping ring. Since insulation measures are taken between the stator core buckle slab and the stator core and between the stator core buckle slab and the core clamping ring, the invention has the advantages that the equivalent external squirrel cage effect formed by the stator core buckle slab, the core clamping ring and partial core stamping is fundamentally eliminated, the added losses of the motor are reduced and the energy saving effect is reached.
Description
Technical field
The invention belongs to alternating current machine and manufacture and design the field, particularly a kind of AC motor structure of eliminating stator core cramp external squirrel cage effect.
Background technology
In the conventional motors manufacturing process; Be on-insulated between stator core cramp 1 and the stator iron-core lamination; It leans on the tension force fixed stator iron-core lamination of stator core cramp toward both sides, and the stator core of lamination simultaneously relies on the adhesion of fastening between stator core cramp two ends and the trim ring to make stator core constitute an integral body.So, be between stator core cramp and the stator iron-core lamination or stator core cramp and trim ring unshakable in one's determination between do not insulate.Because the support 4 in the stator core outside is a permeability magnetic material; So magnetic field can see through stator core 2 and get into supports in rotary course, and closed through support, this part magnetic flux can cutting stator unshakable in one's determination 2 in the rotary course of magnetic field and support 4 between cramp; So between the stator iron-core lamination that stator core cramp and it are connected and and the trim ring at two ends between all constitute outer mouse cage; In the stator core cramp, produce induced potential and then produce induced current, bring corresponding supplementary load loss, as depicted in figs. 1 and 2; Fig. 1 is certain Distribution of Magnetic Field figure constantly; Can find out that the part magnetic line of force gets into the support 4 of stator core 2 outsides, so in the rotary course of magnetic field, possible cutting stator cramp 1 unshakable in one's determination; Fig. 2 is the induced current flow path sketch map in stator core cramp and the trim ring unshakable in one's determination.Along with the development of ultra high efficiency motor with apply and bring into schedule, be necessary to improve stator core cramp structure to reduce supplementary load loss.
Summary of the invention
The present invention is directed to stator core cramp in the conventional motors and can bring the problem of external squirrel cage effect, a kind of AC motor structure of eliminating stator core cramp external squirrel cage effect is provided.
The technical scheme that the present invention adopts is: between the stator core cramp of conventional AC motor and stator core and between stator core cramp and the trim ring unshakable in one's determination insulating barrier is set respectively.
Said insulating barrier is soft insulating tape, empire cloth or an insulating paper of fiber-like, for the insulating varnish through cure process, perhaps is insulation board perhaps.
Insulating barrier between said stator core cramp and the stator core is arranged on the cramp groove inner surface of stator core, perhaps coats the stator core cramp, perhaps is arranged on the cramp groove inner surface and coating stator core cramp of stator core simultaneously.
The place, both sides of the edge of said stator core cramp is for slick and sly chamfer design, in case in installation process, scratch insulating barrier.
Beneficial effect of the present invention is: the present invention has fundamentally eliminated the external squirrel cage effect of stator core cramp through stator core cramp and trim ring unshakable in one's determination are taked insulation measures, reaches the purpose that at utmost reduces the loss of electric machine.Application of the present invention also can be obtained remarkable energy saving effect for alternating current motors such as rare-earth permanent magnet motors.
Description of drawings
Fig. 1 is the Distribution of Magnetic Field sketch map of traditional structure electric machine stator iron, stator core cramp and base inner;
Fig. 2 is the position relation and the current direction sketch map of stator core cramp and trim ring unshakable in one's determination;
Fig. 3 is the fragmentary cross-sectional view after the employing insulation processing between stator core cramp and stator core and stator core cramp and the trim ring unshakable in one's determination;
Fig. 4 carries out the insulation processing sketch map for stator core cramp groove and stator core cramp;
Fig. 5 takes insulation processing measure sketch map for a-quadrant stator core cramp groove among Fig. 4;
Fig. 6 takes the insulation processing sketch map for stator core cramp itself in a-quadrant among Fig. 4.
Label among the figure:
1-stator core cramp; The 2-stator core; 3-trim ring unshakable in one's determination; The 4-support; The 5-insulating barrier.
Embodiment
The invention provides a kind of AC motor structure of eliminating stator core cramp external squirrel cage effect, through description of drawings and embodiment the present invention is further specified below.
Be to eliminate conventional AC motor stator-core cramp external squirrel cage effect, the present invention is between the stator core cramp 1 of conventional AC motor and stator core 2 and between stator core cramp 1 and the trim ring unshakable in one's determination 3 insulating barrier 5 is set respectively, like Fig. 3 and shown in Figure 4.
Embodiment 1:
As shown in Figure 5, in the cramp groove of stator core 2, insulating barrier 5 is set, this insulating barrier 5 is a high strength insulating varniss, the sclerosis back forms insulating barrier between stator core 2 and stator core cramp 1.The place, both sides of the edge of stator core cramp 1 carries out slyness and handles, and prevents in installation process, to scratch insulating barrier.
Embodiment 2:
As shown in Figure 6; Insulating barrier 5 is an insulating tape; Utilize the whole stator core cramp 1 of insulating tape wrapping, make insulation between stator core cramp 1 and stator core 2 and the trim ring unshakable in one's determination 3, the insulating tape material of employing has better intensity; In installation process, be unlikely to damage, still can bear the fastening effect of 1 pair of stator core 2 of stator core cramp and the fastening effect between stator core cramp 1 and the trim ring unshakable in one's determination 3.
Embodiment 3:
Embodiment 4:
In lamination process, adopt high-intensity empire cloth as insulating barrier between stator core cramp 1 and the trim ring unshakable in one's determination 3 and between stator core cramp 1 and the stator core 2, lean on empire cloth that between stator core cramp 1 and the trim ring unshakable in one's determination 3 and galvanic circle between stator core cramp 1 and the stator core 2 is separated.
Embodiment 5:
The scheme that insulating varnish and solid insulating material are used with, stator core cramp 1 all is coated with insulating varnish with trim ring unshakable in one's determination 3 surfaces, and in technical process, adopts insulating tape in addition or between stator core cramp 1 and trim ring unshakable in one's determination 3, add insulation board with the reinforced insulation effect.
The foregoing description can select a kind of independent use or several kinds of combinations to use according to factory's practical implementation condition.
Claims (4)
1. an AC motor structure of eliminating stator core cramp external squirrel cage effect is characterized in that, between stator core cramp (1) and the stator core (2) and between stator core cramp (1) and the trim ring unshakable in one's determination (3) insulating barrier (5) is being set respectively.
2. a kind of AC motor structure of eliminating stator core cramp external squirrel cage effect according to claim 1; It is characterized in that; Said insulating barrier (5) is soft insulating tape, empire cloth or an insulating paper of fiber-like, for the insulating varnish through cure process, perhaps is insulation board perhaps.
3. a kind of AC motor structure of eliminating stator core cramp external squirrel cage effect according to claim 1; It is characterized in that; Insulating barrier (5) between said stator core cramp (1) and the stator core (2) is arranged on the cramp groove inner surface of stator core (2); Perhaps coat stator core cramp (1), perhaps be arranged on the cramp groove inner surface and coating stator core cramp (1) of stator core (2) simultaneously.
4. a kind of AC motor structure of eliminating stator core cramp external squirrel cage effect according to claim 1 is characterized in that, the place, both sides of the edge of said stator core cramp (1) is for slick and sly chamfer design, in case in installation process, scratch insulating barrier (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102042585A CN101873022B (en) | 2010-06-21 | 2010-06-21 | AC motor structure capable of eliminating stator core buckle slab external squirrel cage effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102042585A CN101873022B (en) | 2010-06-21 | 2010-06-21 | AC motor structure capable of eliminating stator core buckle slab external squirrel cage effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101873022A CN101873022A (en) | 2010-10-27 |
| CN101873022B true CN101873022B (en) | 2012-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102042585A Expired - Fee Related CN101873022B (en) | 2010-06-21 | 2010-06-21 | AC motor structure capable of eliminating stator core buckle slab external squirrel cage effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101873022B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111064288A (en) * | 2019-12-18 | 2020-04-24 | 安徽嘀通网络科技有限公司 | Low-iron-loss automobile engine stator core and preparation process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291741Y (en) * | 1997-05-15 | 1998-09-16 | 福建省仙游电机厂 | Composite external stator core |
| CN2891457Y (en) * | 2006-04-09 | 2007-04-18 | 侯林松 | Novel motor with safety protection function |
| CN101345441A (en) * | 2007-07-13 | 2009-01-14 | 弗里茨·福尔哈贝尔博士两合公司 | Electric miniature drive and inference element and production method for same |
| CN201422033Y (en) * | 2009-04-10 | 2010-03-10 | 上海电气先锋电机有限公司 | Electromotor heat insulation stator core |
| CN201830055U (en) * | 2010-06-21 | 2011-05-11 | 华北电力大学 | Alternating-current motor structure for eliminating stator core buckle piece external squirrel-cage effect |
-
2010
- 2010-06-21 CN CN2010102042585A patent/CN101873022B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291741Y (en) * | 1997-05-15 | 1998-09-16 | 福建省仙游电机厂 | Composite external stator core |
| CN2891457Y (en) * | 2006-04-09 | 2007-04-18 | 侯林松 | Novel motor with safety protection function |
| CN101345441A (en) * | 2007-07-13 | 2009-01-14 | 弗里茨·福尔哈贝尔博士两合公司 | Electric miniature drive and inference element and production method for same |
| CN201422033Y (en) * | 2009-04-10 | 2010-03-10 | 上海电气先锋电机有限公司 | Electromotor heat insulation stator core |
| CN201830055U (en) * | 2010-06-21 | 2011-05-11 | 华北电力大学 | Alternating-current motor structure for eliminating stator core buckle piece external squirrel-cage effect |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101873022A (en) | 2010-10-27 |
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