CN205377478U - Stator punching sheet - Google Patents
Stator punching sheet Download PDFInfo
- Publication number
- CN205377478U CN205377478U CN201620069452.XU CN201620069452U CN205377478U CN 205377478 U CN205377478 U CN 205377478U CN 201620069452 U CN201620069452 U CN 201620069452U CN 205377478 U CN205377478 U CN 205377478U
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- CN
- China
- Prior art keywords
- stator
- groove
- slot
- stopper slot
- punching
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a stator punching sheet, its technical scheme main points are including towards the piece body, have a plurality of stator tooths towards the even interval distribution of interior circumference of piece body, form the wire winding groove between two adjacent stator tooths, be equipped with a plurality of spacing grooves that distribute along wire winding cell wall length direction on the both sides wall in wire winding groove, every the notch department of spacing groove all is equipped with the arch to one side extension of spacing groove blind end. To wire winding groove when wire winding, arch to extend spacing groove blind end one side has the characteristic as the fishhook, has not only made things convenient for the copper line can enter into the spacing groove by smooth inlay card when the coiling to when motor vibration produced the torsion of circumference, the copper line can be lived by inlay card firmly to the arch, avoids the copper line to break away from on the spacing groove, used the coiling intensity that has improved the copper line with the spacing groove cooperation.
Description
Technical field
This utility model relates to technical field of motors, more specifically, it relates to a kind of stator punching.
Background technology
Stator is the actionless part of motor.Stator is made up of stator core, stator winding and support three part.The Main Function of stator is to produce rotating excitation field, and the Main Function of rotor is by magnetic force line cutting and then generation (output) electric current in rotating excitation field.
At present, application number be 201520196533.1 Chinese patent disclose a kind of stator punching, it includes punching body, and punching body excircle is provided with some cramp grooves, described punching body inner periphery is provided with some winding slots, and the distribution of described winding slot two side has some locking projections.Although this stator punching can strengthen copper cash to a certain extent at stator punching anti-loosing effect in the radial direction, but motor runs under the factor effects such as startup, jerk, copper cash is by the impact of electromagnetic force, heat effect and mechanical stress, motor produces vibration, stator punching is made to be subject to multi-faceted power, the fastening effect of locking projection is good not, and vibration and impact that motor occurs make copper cash be likely to occur deformation or displacement in winding slot.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is in that to provide a kind of stator punching, has the advantages that copper cash fastening is locking.
For achieving the above object, this utility model provides following technical scheme: a kind of stator punching, including punching body, the inner periphery uniform intervals distribution of punching body has multiple stator tooth, winding slot is formed between adjacent two stator tooths, the two side of described winding slot is provided with some stopper slots along the distribution of coiling cell wall length direction, and the notch place of each described stopper slot is all provided with the projection that oriented stopper slot blind end side extends.
Pass through technique scheme, when being wound around full copper cash in winding slot, stopper slot improves and the contact area of copper cash Yu winding slot sidewall, effectively raise the frictional force between winding slot and copper cash, can stop that copper cash rocks in winding slot, global copper wire-wound line group is played good positioning action, it is to avoid copper wire coiling group produces displacement or deformation；By equally distributed stopper slot, when copper cash is wrapped on winding slot, make adjacent between stopper slot copper cash be wound around the number of turns and keep consistent, it is ensured that the intensity that copper cash is wound around, it is to avoid localization difference occurs in copper cash coiling group；When to winding slot coiling, the projection extended to stopper slot blind end side, there is the characteristic as fish hook, not only facilitate copper cash and can enter in stopper slot by inlay card smoothly when coiling, and when motor oscillating produces the torsion of circumference, projection can live copper cash by inlay card firmly, it is to avoid copper cash departs from stopper slot, with stopper slot with the use of the coiling intensity that improve copper cash.
Preferably, each described stopper slot is all u-shaped.
By technique scheme, the blind end of U-shaped is that arc is arranged, and is absent from corner angle, when copper wire clamp is embedded in stopper slot, it is to avoid copper cash is caused damage by the blind end of stopper slot.
Preferably, the notch of each described stopper slot all adopts circular arc excessive.
Pass through technique scheme, when copper cash is wrapped on stopper slot, copper cash certainly will contact with the notch of stopper slot, when motor runs generation vibration, copper cash constantly rubs on notch, the mode that circular arc is excessive, it is to avoid copper cash is caused damage by the corner angle of adjacent notch, thus affecting the properly functioning of motor.
Preferably, the two side of each described stopper slot is equipped with some arcuate grooves.
Pass through technique scheme, when copper cash forms copper cash coiling group in coiling group, copper cash is wrapped on stopper slot, and entering in arcuate groove by inlay card, when motor operational vibration, coiling group bears multi-faceted power, existence due to arcuate groove, add copper cash fastening effect in stopper slot, it is to avoid copper cash is wrapped on stopper slot and produces sliding friction, thus copper cash is caused damage.
Preferably, described stator tooth includes rectangular portion, vertical portion, arc sections from the notch of winding slot successively to bottom land side, has the first fillet between described rectangular portion and vertical portion.
Pass through technique scheme, coil is wrapped on winding slot, produce rotating excitation field, wire is wound around in winding slot conflicts on the winding slot the first fillet with stator tooth junction, carry out rounding off, and when motor runs, the rotation of rotor causes that motor entirety produces vibrations, avoid producing between the insullac of copper cash and winding slot friction, it is to avoid the copper cash exposing damage causes electric motor short circuit.
Preferably, there is the second fillet between described rectangular portion and punching body inner periphery.
Pass through technique scheme, the combination of rectangular portion and the second fillet, enable to magnetic induction line draw in the second fillet uniformly, and cancel out each other at the second fillet place, reduce the tangential component of permanent magnet and the Interaction Force of stator tooth, effectively reduce the rectangular portion suppression advantage to winding slot torque.
Preferably, described rectangular portion is provided with some teeth groove along the distribution of rectangular portion length direction away from the end of vertical portion.
By technique scheme, forming double wedge between adjacent sheaves, the setting of double wedge ensure that electromechanics can even be changed, and improving motor performance, reducing the loss of motor, thus improve the efficiency of motor, it is to avoid motor temperature raises；Additionally teeth groove is rectangular, and rectangle teeth groove can effectively suppress the effect of cogging torque best.
Preferably, between described punching body and winding slot, distribution has several radiating grooves, and described radiating groove is equidistantly distributed along punching body circumferential direction.
By technique scheme, radiating groove adds the contact area of stator and air, is effectively increased the heat dispersion of stator；And radiating groove is arranged between punching body and winding slot, it is to avoid magnetic flux is produced impact by radiating groove.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment；
Fig. 2 is the enlarged drawing of A in Fig. 1；
Fig. 3 is the enlarged drawing of B in Fig. 2.
Accompanying drawing labelling: 1, punching body；2, winding slot；3, stator tooth；31, rectangular portion；32, vertical portion；33, arc sections；4, the first fillet；5, the second fillet；6, stopper slot；7, radiating groove；8, protruding；9, arcuate groove；10, teeth groove.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, this utility model stator punching is done describe clearly and completely further below with reference to accompanying drawings.Obviously, described embodiment is section Example of the present utility model, rather than whole embodiments.Based on described embodiment of the present utility model, the every other embodiment that those of ordinary skill in the art obtain under the premise without creative work, broadly fall into the scope of this utility model protection.
As depicted in figs. 1 and 2, a kind of stator punching, including punching body 1, the inner periphery of punching body 1 is evenly distributed with multiple stator tooth 3, stator tooth 3 is provided with 16, winding slot 2 is formed between adjacent stators tooth 3, described stator tooth 3 includes rectangular portion 31 from the notch of winding slot 2 successively to bottom land side, vertical portion 32 and arc sections 33 and both sides are symmetrical set, the first fillet 4 is had between described rectangular portion 31 and vertical portion 32, the length of vertical portion 32 is more than the radius of arc sections 33, it is wrapped in arc sections 33 at copper cash, large-area copper cash is wound around and produces extremely strong upwardly power, vertical portion 32 length is longer, and stopper slot 6 plays the effect that well restriction is anti-skidding, copper cash is avoided to depart from winding slot 2 and go out, the rectangular portion 31 coordinating winding slot 2 provides triple protective capacities.
Wherein, the excircle of punching body 1 is equidistantly distributed four cramp grooves, cramp groove is provided with four, cramp groove is arranged towards punching body 1 outer rim side, the bottom land of cramp groove and notch are equipped with the circular arc that radius is 0.2mm, and the cell wall of cramp groove is obliquely installed, and the width that the width of notch compares bottom land is little, reach tabletting to passing through the fixing groove fixing purpose to punching, it is to avoid tabletting drops from punching.
Wherein, rectangular portion 31 on winding slot 2 is positioned on notch, and it is projecting, the width making notch is 2mm, the copper cash of coil is wound in winding slot 2, copper cash is served the purpose of limit slippage, copper cash is avoided to come off from winding slot 2, and the junction between winding slot 2 and vertical portion 32 is provided with the first fillet 4 that radius is 0.2mm, when copper cash is wound on winding slot 2, it is placed in the first fillet 4 place, first fillet 4 can perfectly be conflicted with wire, copper cash is produced friction of conflicting by the corner angle avoiding junction, thus the insullac scraped on copper cash, when insullac on copper cash drops, motor is very easily made to produce short circuit, thus burning out motor.
As depicted in figs. 1 and 2, the second fillet 5 is had between rectangular portion 31 and punching body 1 inner periphery, the combination of rectangular portion 31 and the second fillet 5, enable to magnetic induction line draw in the second fillet 5 uniformly, and cancel out each other at the second fillet 5 place, reduce the tangential component of permanent magnet and the Interaction Force of stator tooth 3, effectively reduce the rectangular portion 31 suppression advantage to winding slot 2 torque.
Wherein, it is provided with some teeth groove 10 along the distribution of rectangular portion 31 length direction in rectangular portion 31 away from the end of vertical portion 32, between adjacent teeth groove 10, forms double wedge, teeth groove 10 is provided with three, thus forming two double wedges, all rectangular setting of teeth groove 10 and double wedge, it is possible to effective suppression torque effect.
As shown in Figures 2 and 3, vertical portion 32 is provided with stopper slot 6, stopper slot 6 is equidistantly distributed along the length direction of winding slot 2 sidewall, stopper slot 6 is u-shaped and blind end is arc-shaped, circular arc can well be fitted the surface of copper cash, adapt to the winding mode of copper cash, wherein, the both sides cell wall of each stopper slot 6 is provided with the arcuate groove 9 of some semi-circular shapes, arcuate groove 9 is equidistantly distributed along the length direction of stopper slot 6 sidewall, the projection 8 extended to stopper slot 6 closed section side it is provided with at the notch place of stopper slot 6, the end of protruding 8 adopts circular arc excessive, avoid copper cash is caused damage, the setting of protruding 8, stopper slot 6 is made to have the characteristic of fish hook, copper wire clamp is embedding enters into convenience in stopper slot 6, and copper cash departs from difficulty in stopper slot 6.
As shown in Figure 1, radiating groove 7 is square, the length of radiating groove 7 is 6mm, and width is 1mm, and lateral symmetry distribution, not only increase the aesthetic property of stator, and the setting that the forward and backward sidewall of radiating groove 7 is concavo-convex, not only increase the air flow area of stator surface, it is provided that the heat-sinking capability of stator, being also convenient for when stator punching is suppressed, upper and lower two panels stator effectively connects and fixes.
The above is only exemplary embodiment of the present utility model, and not for limiting protection domain of the present utility model, protection domain of the present utility model is determined by appended claim.
Claims (8)
1. a stator punching, including punching body (1), the inner periphery uniform intervals distribution of punching body (1) has multiple stator tooth (3), winding slot (2) is formed between adjacent two stator tooths (3), it is characterized in that: the two side of described winding slot (2) is provided with some stopper slots (6) along the distribution of winding slot (2) wall length direction, and the notch place of each described stopper slot (6) is all provided with the projection (8) that oriented stopper slot (6) blind end side extends.
2. stator punching according to claim 1, is characterized in that: each described stopper slot (6) is all u-shaped.
3. stator punching according to claim 2, is characterized in that: the notch of each described stopper slot (6) all adopts circular arc excessive.
4. stator punching according to claim 3, is characterized in that: be equipped with some arcuate grooves (9) on the two side of each described stopper slot (6).
5. stator punching according to claim 1, it is characterized in that: described stator tooth (3) includes rectangular portion (31), vertical portion (32), arc sections (33) from the notch of winding slot (2) successively to bottom land side, has the first fillet (4) between described rectangular portion (31) and vertical portion (32).
6. stator punching according to claim 4, is characterized in that: have the second fillet (5) between described rectangular portion (31) and punching body (1) inner periphery.
7. stator punching according to claim 5, is characterized in that: described rectangular portion (31) is provided with some teeth groove (10) along the distribution of rectangular portion (31) length direction away from the end of vertical portion (32).
8. stator punching according to claim 1, is characterized in that: between described punching body (1) and winding slot (2), distribution has several radiating grooves (7), and described radiating groove (7) is equidistantly distributed along punching body (1) circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620069452.XU CN205377478U (en) | 2016-01-23 | 2016-01-23 | Stator punching sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620069452.XU CN205377478U (en) | 2016-01-23 | 2016-01-23 | Stator punching sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205377478U true CN205377478U (en) | 2016-07-06 |
Family
ID=56268568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620069452.XU Expired - Fee Related CN205377478U (en) | 2016-01-23 | 2016-01-23 | Stator punching sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205377478U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100171A (en) * | 2016-08-24 | 2016-11-09 | 天津东方兴泰工业科技股份有限公司 | A kind of Novel motor stator |
| CN114244020A (en) * | 2021-12-13 | 2022-03-25 | 陕西航空电气有限责任公司 | Air-cooled aviation permanent magnet motor with high power density |
-
2016
- 2016-01-23 CN CN201620069452.XU patent/CN205377478U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100171A (en) * | 2016-08-24 | 2016-11-09 | 天津东方兴泰工业科技股份有限公司 | A kind of Novel motor stator |
| CN114244020A (en) * | 2021-12-13 | 2022-03-25 | 陕西航空电气有限责任公司 | Air-cooled aviation permanent magnet motor with high power density |
| CN114244020B (en) * | 2021-12-13 | 2023-12-22 | 陕西航空电气有限责任公司 | High-power-density air-cooled aviation permanent magnet motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20180123 |