CN203233246U - Stator iron core lamination unit, stator and induction motor - Google Patents
Stator iron core lamination unit, stator and induction motor Download PDFInfo
- Publication number
- CN203233246U CN203233246U CN 201320199233 CN201320199233U CN203233246U CN 203233246 U CN203233246 U CN 203233246U CN 201320199233 CN201320199233 CN 201320199233 CN 201320199233 U CN201320199233 U CN 201320199233U CN 203233246 U CN203233246 U CN 203233246U
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- stator
- stator core
- blade unit
- pole shoe
- arc surface
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Abstract
The utility model is suitable for the technical field of motors and provides a stator iron core lamination unit. The stator iron core lamination unit comprises a pole shoe, a yoke part and a wire winding part which connects the pole shoe and the yoke part. The bottom end of the pole shoe is provided with an arc surface facing to a motor air gap and bottom planes which are respectively arranged on both ends of the arc surface, wherein the two bottom planes are located in the same plane. According to the structure, the bottom end part of the stator pole shoe is designed into a plane structure; in the blanking process of a stator iron core lamination on a material belt, the plane is directly used as the positioning surface of the material belt; the material belt width in the process is shortened, and the material belt material is saved; and the production precision of a stamping mould is reduced, and the process cost is reduced. The utility model further provides a stator which comprises a stator iron core and a winding. The stator iron core is formed by superposing annular flaky components which are surrounded by a number of stator iron core lamination units, wherein the stator iron core lamination units are stamped on the material belt. The utility model further provides an induction motor which comprises the stator and a rotor matched with the stator.
Description
Technical field
The utility model belongs to technical field of motors, relates in particular to the improvement of electric machine iron core stator laminating structure and has this stator punching stator and induction machine.
Background technology
Motor is as one of indispensable parts of various electronic products, and technology maturity is more and more higher.Stator is the key components and parts in the motor, generally is made up of stator core, stator winding and support three parts, and it mainly acts on is to produce rotating magnetic field, and efficiency of motor is had direct influence.
In the prior art, the stator core stamping sheet in the motor is to scribble insulation from the surface or have the last punching press of silicon steel strip of oxide-film to form a plurality of punching unit, then each unit is surrounded the annular chip of formation.Though the processing of the stator core stamping sheet of this integral type shape is quick, the production efficiency height, but in the punching out process, the waste material of generation is more, the cost of manufacture height of material cost and blanking die, and because the stator air-gap surface relative with rotor is all arc surface, therefore, in the course of processing of stator core stamping sheet, the raw material that needs stamping-out to fall on some strip straight flanges could form this arc surface, cause the waste material that produces more, further increased material cost.And the structure of this arc surface is because cambered surface is longer relatively, and is higher to the processing request of blanking die, also increased the cost of Mold Making undoubtedly.
The utility model content
The purpose of this utility model at first is to provide a kind of motor stator core punching unit that reduces the stator material cost in the existing motor.
For achieving the above object, the stator core stamping blade unit that the utility model provides, comprise pole shoe, yoke portion and connect described pole shoe and the winding section of described yoke portion, described pole shoe bottom has towards the arc surface of motor gas-gap and the baseplane that links to each other with described arc surface, and described baseplane is divided into the two ends of described arc surface.
Preferably, two described baseplanes are positioned at same plane.
A kind of version as the utility model stator core stamping blade unit, described baseplane one side links to each other with described arc surface, another side links to each other the intersection rounding off of described baseplane and described arc surface and described joint face by a joint face with the end of described pole shoe.
Particularly, the arcwall face of described joint face for being inclined upwardly along junction, described baseplane and arranging.
As the another kind of version of the utility model stator core stamping blade unit, described baseplane one side links to each other with described arc surface, and another side arranges a connected inclined-plane, forms the end of described pole shoe.
Particularly, the crossing angle in described inclined-plane and described baseplane is 50～75 °.
In the design of the concrete structure of the stator core stamping blade unit that the utility model provides, described winding section is vertical mutually with the interface of described yoke portion.
In the design of the concrete structure of the stator core stamping blade unit that the utility model provides, the end face of described yoke portion is the plane.
For achieving the above object, the utility model also is a kind of stator is provided, and comprises stator core and winding, and described stator core is to be surrounded after punching press on the strip by a plurality of said stator core stampings unit that the annular slice member that forms is superimposed to be constituted.
For achieving the above object, the utility model also further provides a kind of induction machine, comprises stator described above and the rotor that cooperates with described stator.
Compared to existing technology, the beneficial effects of the utility model are: the motor stator core punching unit that provides, the stator pole shoes bottom part is designed to planar structure, can make in the stamping-out processing of stator core stamping sheet on strip, this plane directly as the locating surface on the strip, be need not this stator core stamping blade unit pole shoe baseplane is processed like this; Both can shorten and added needed strip width in man-hour, save the strip material, also can reduce the making precision of diel, reduce stator core stamping blade unit processing cost.
Adopt stator and the induction machine of said stator core stamping unit, can reduce its manufacturing cost, improve industrial competition.
Description of drawings
Fig. 1 is the structural representation of the stator core stamping blade unit embodiment one that provides of the utility model;
Fig. 2 is the processing schematic diagram of stator core stamping blade unit embodiment one on strip that the utility model provides;
Fig. 3 is the stator core construction that forms after the processing on the strip of the utility model stator core stamping blade unit embodiment one and the stator schematic diagram that is provided with winding;
Fig. 4 is the structural representation of the stator core stamping blade unit embodiment two that provides of the utility model;
Fig. 5 is the processing schematic diagram of stator core stamping blade unit embodiment two on strip that the utility model provides; And
Fig. 6 is the stator core construction schematic diagram that the utility model stator core stamping blade unit embodiment two forms after the processing on the strip.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The stator core stamping blade unit that the utility model provides, comprise pole shoe, yoke portion and connect described pole shoe and the winding section of described yoke portion in described pole shoe bottom, to have the arc surface towards motor gas-gap, the indent that can cooperate with rotor, in the two ends of this arc surface, be connected with a baseplane respectively.In the structure of said stator core stamping unit, the stator pole shoes bottom part is designed to planar structure, can make in the processing of stator core stamping sheet on strip, with this plane directly as the locating surface on the strip, namely directly with the baseplane of the lateral parts on the strip length direction as pole shoe, need not like this this stator core stamping blade unit pole shoe baseplane is processed, can shorten and add needed strip width in man-hour, thereby save the strip material, reduce the stator manufacturing cost.
The accompanying drawing that provides below in conjunction with embodiment is described in detail the utility model motor stator core punching unit.
Embodiment one
As shown in Figure 1 and Figure 2, the motor stator core punching unit 1 that the utility model embodiment one provides comprises integrated pole shoe 12, yoke portion 13 and connects the winding section 11 of pole shoe 12 and yoke portion 13, described pole shoe 12 cooperates with rotor, and described winding section 11 is used for twining winding 3(and sees Fig. 3).In the present embodiment structure, described pole shoe 12 bottoms have the arc surface 121 towards motor gas-gap (or being rotor airgap), central angle θ=α * 360/S that this arc surface is corresponding, wherein, S is the number that the stator core stamping blade unit distributes at stator, and α is form factor.For guaranteeing the length of fit between this arc surface 121 and the rotor, the value of form factor α should be: 0.4≤α≤0.7.In the two ends of described arc surface 121, be arranged with two baseplanes 122, this two baseplane 122 is in the same plane.Said structure, by the bottom at the pole shoe 12 of stator baseplane 122 is set, can make stator add man-hour at strip 2, baseplane 122 direct locating surfaces as the processing of strip 2 stamping-outs with each stator core stamping blade unit 1, because this baseplane 122 does not relate to and the cooperating of rotor, so require low to this planar processing precision, like this, also just need not the baseplane 122 of pole shoe 12 is reprocessed, can be when guaranteeing the stator performance, reduce the length of arc surface 121, carry out punching at strip 2 and add the material that only cuts away arc surface 121 parts man-hour and get final product, can save in the prior art pole shoe 12 bottoms and fall some strip materials for formation arc stamping-out, both reduced material cost, can reduce the making precision of diel again, and then reduce the production cost of stator, improve production efficiency.And, described baseplane 122 is divided into the two ends of arc surface 121, can form the symmetry to arc surface 121 and whole stator core stamping blade unit 1 center, be conducive to the location of mould, ensure the performance of stator torque.
Further referring to Fig. 1 to Fig. 2, in the concrete structural design of present embodiment, be to promote the stator torque performance, baseplane 122 1 sides link to each other with arc surface 121, and another side then passes through a joint face 123 and links to each other with the end 124 of pole shoe 12.Certainly, the setting of joint face 123 also can reduce the length as the baseplane 122 of locating surface, causes influence to arc surface 121 because of its surperficial unevenness or stress when avoiding this plane excessive.Simultaneously, rounding off is adopted with the intersection of arc surface 121 and joint face 123 in described baseplane 122.Like this, can eliminate the burr of each intersection on the one hand, on the other hand, can eliminate the stress of an intersection, avoid its stress to the influence of stator torque performance.
Please again referring to Fig. 1 to Fig. 2, in the concrete structural design of present embodiment, arcwall face or inclined-plane that described joint face 123 is inclined upwardly and arranges for 122 the junction along the baseplane.Further, when joint face 123 was set to arcwall face, this arcwall face and described baseplane 122 were tangent.This structure can form the rounding off between arc surface 121 and the joint face 123 on the one hand naturally, and this tangent structure can make the better effects if of stator torque simultaneously.
As further improvement of the utility model, in the concrete structural design of present embodiment, described winding section 11 is vertical mutually with the interface of yoke portion 13, and namely the bottom that is connected with the side plane 111 of winding section 11 in yoke portion 13 arranges one section plane 131, and this plane 131 is vertical mutually with side plane 111.Like this, both be conducive to the winding of winding 3, and with respect to existing yoke portion 13 bottoms, and reduced its arcwall face and increase the making that its straight line planar structure is conducive to mould equally, can reduce the difficulty of processing of mould, thereby further reduce the cost of manufacture of mould.
Embodiment two
Referring to Fig. 4 and Fig. 5, as the another kind of structure of motor stator core punching unit 1', in the present embodiment, described baseplane 122' one side links to each other with arc surface 121', another side arranges a connected inclined-plane 125, is directly formed the end of pole shoe 12' by this inclined-plane 125.This structure can be same with embodiment one, and the locating surface by baseplane 122' directly processes as the stamping-out of strip 2 can reduce material cost, reduces the making precision of diel, enhances productivity.And described baseplane 122' is divided into the two ends of arc surface 121', can forms the symmetry to arc surface 121 and whole stator core stamping blade unit 1' center, further guarantee the location of mould and the performance of stator torque.Simultaneously, because the structural plane that forms reduces, the machined surface in the time of also can reducing Mold Making and reduce the cost of manufacture of mould, and because inclined-plane 125 also is planar structure, compare to embodiment one, the difficulty of processing of its mould is lower, and then can reduce the processing cost of stator significantly.
In the concrete structure design of present embodiment, described inclined-plane 125 is 50～75 ° with the angle Φ that described baseplane 122' intersects, because this inclined-plane 125 is the end of pole shoe 12', the setting of this angular range can ensure the intensity of pole shoe 12' end.Further, the intersection rounding off on described baseplane 122' and this inclined-plane 125.With embodiment one, so both can eliminate the burr of its intersection, can eliminate the stress of intersection simultaneously, guarantee the torque performance of stator.
With embodiment one, as further improvement of the utility model, in the concrete structural design of present embodiment, described winding section 11' is vertical mutually with the interface of the 13' of yoke portion, namely in the bottom that the 13' of yoke portion is connected with the side plane 111' of winding section 11' one section plane 131' is set, and this plane 131' is vertical mutually with side plane 111', be convenient to the winding of winding 3, and reduce the cambered surface of yoke portion 13' bottom and increase its straight line planar structure, be conducive to the making of mould, also can reduce the cost of manufacture of mould.
Referring to Fig. 4 to Fig. 6, in the illustrated structure of present embodiment, the end face 132' of the 13' of its yoke portion also is designed to planar structure, this plane can be used as the locating surface of strip 2 length direction another sides equally, stamping-out adds man-hour this side and does not need to cut away, and only the material of 11' periphery, winding section and the 13' of yoke portion side redundance is removed to get final product.This structure, the width of strip 2' in the time of can further shortening the manufacturing stator core, the utilance of raising material makes material cost and manufacturing cost lower.
Be appreciated that ground, the end face of the yoke portion 13 of the utility model embodiment one can be designed to planar structure equally, the stator core stamping blade unit 1 of other shapes and structure is under the prerequisite that guarantees the stator torque performance, all can adopt this Design Mode, be conducive to further reduce material cost, do not repeat them here.
Referring to Fig. 3 and Fig. 6, the utility model also provides a kind of stator, comprise stator core 4(4'), and winding 3, wherein said stator core 4(4') be by a plurality of said stator core stamping unit 1(1') by surrounding the superimposed formation of annular slice member that forms after 2 punching presses of strip, the disjunctor moulding again.Be appreciated that ground, stator core 4(4') also can be by the superimposed formation of annular slice member that forms after splicing surrounds again after 2 punching presses of strip, the single moulding.Winding 3 is wound in the stator core 4(4' after superimposed) winding section 11', each stator core stamping blade unit 1(1') number and the corresponding central angle θ of arc surface can be according to stator core 4(4') external diameter and torque request determine.Employing said stator iron core 4(4') stator, its stator core stamping blade unit 1(1') from many aspects its structure is improved, can save material cost, reduce the stator manufacturing cost.
According to cherishing said stator core stamping unit 1(1') and the design of stator, the utility model also provides a kind of induction machine (not shown), comprises that stator reaches the rotor that cooperates with described stator.Adopt the induction machine of said stator, can reduce its whole manufacturing cost, improve industrial competition.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. stator core stamping blade unit, comprise pole shoe, yoke portion and connect described pole shoe and the winding section of described yoke portion, it is characterized in that, described pole shoe bottom has towards the arc surface of motor gas-gap and the baseplane that links to each other with described arc surface, and described baseplane is divided into the two ends of described arc surface.
2. stator core stamping blade unit as claimed in claim 1 is characterized in that, two described baseplanes are positioned at same plane.
3. stator core stamping blade unit as claimed in claim 1, it is characterized in that, described baseplane one side links to each other with described arc surface, and another side links to each other the intersection rounding off of described baseplane and described arc surface and described joint face by a joint face with the end of described pole shoe.
4. stator core stamping blade unit as claimed in claim 3 is characterized in that, the arcwall face of described joint face for being inclined upwardly along junction, described baseplane and arranging.
5. stator core stamping blade unit as claimed in claim 1 is characterized in that, described baseplane one side links to each other with described arc surface, and another side arranges an inclined-plane, connects the end of described pole shoe.
6. stator core stamping blade unit as claimed in claim 5 is characterized in that, the angle that intersect described inclined-plane and described baseplane is 50～75 °.
7. as each described stator core stamping blade unit of claim 1-6, it is characterized in that described winding section is vertical mutually with the interface of described yoke portion.
8. as each described stator core stamping blade unit of claim 1-6, it is characterized in that the end face of described yoke portion is the plane.
9. a stator comprises stator core and winding, it is characterized in that, described stator core is to be closed by each described stator core stamping blade unit of a plurality of claim 1-8 punching press back wall on strip that the annular slice member that forms is superimposed to be constituted.
10. an induction machine is characterized in that, comprises the stator described in the claim 9 and the rotor that cooperates with described stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320199233 CN203233246U (en) | 2013-04-18 | 2013-04-18 | Stator iron core lamination unit, stator and induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320199233 CN203233246U (en) | 2013-04-18 | 2013-04-18 | Stator iron core lamination unit, stator and induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203233246U true CN203233246U (en) | 2013-10-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320199233 Expired - Lifetime CN203233246U (en) | 2013-04-18 | 2013-04-18 | Stator iron core lamination unit, stator and induction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203233246U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160056672A1 (en) * | 2013-05-13 | 2016-02-25 | Guangdong Welling Motor Manufacturing Co., Ltd. | Permanent magnet motor |
| WO2019024688A1 (en) * | 2017-07-31 | 2019-02-07 | 广东威灵电机制造有限公司 | Core lamination of motor stator, core of motor stator, and compressor |
| CN109861479A (en) * | 2019-04-10 | 2019-06-07 | 珠海凯邦电机制造有限公司 | For improving the stator punching, stator and motor of resonance noise |
-
2013
- 2013-04-18 CN CN 201320199233 patent/CN203233246U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160056672A1 (en) * | 2013-05-13 | 2016-02-25 | Guangdong Welling Motor Manufacturing Co., Ltd. | Permanent magnet motor |
| WO2019024688A1 (en) * | 2017-07-31 | 2019-02-07 | 广东威灵电机制造有限公司 | Core lamination of motor stator, core of motor stator, and compressor |
| CN109861479A (en) * | 2019-04-10 | 2019-06-07 | 珠海凯邦电机制造有限公司 | For improving the stator punching, stator and motor of resonance noise |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |
|
| CX01 | Expiry of patent term |