CN103078433B - Plug-in rotor coil and forming device - Google Patents
Plug-in rotor coil and forming device Download PDFInfo
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- CN103078433B CN103078433B CN201210584333.4A CN201210584333A CN103078433B CN 103078433 B CN103078433 B CN 103078433B CN 201210584333 A CN201210584333 A CN 201210584333A CN 103078433 B CN103078433 B CN 103078433B
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Abstract
The invention discloses a plug-in rotor coil, which comprises a lower-layer coil, wherein the circular arc edge of the lower-layer coil is positioned on an ellipse; the ellipse equation of the ellipse is that X<2>/R<2> + Y<2>sin<2>alpha/R<2> =1, wherein R is a radius of a rotor pressing ring used for installing the lower-layer coil; and alpha is an included angle between a straight-line edge and a bevel edge in the slot of the lower-layer coil, and is more than 90 degrees and less than 180 degrees. The preforming of the plug-in rotor coil before insulation wrapping can be realized, the rotor coil does not need to be bent in field, the production efficiency and the reliability of the plug-in rotor coil are improved, the labor intensity is lowered, and the forming device is suitable for the mass production of a factory and is suitable for manufacturing the big-size plug-in rotor coil.
Description
Technical field
The present invention relates to technical field of generators, particularly a kind of plug-in type rotor coil, the invention still further relates to a kind of shaped device for processing above-mentioned plug-in type rotor coil.
Background technology
In order to improve the reliability of motor, many large wound formula rotor electric machine stators adopt shaping winding, and rotor adopts plug in construction.
At present, rotor coil is mostly adopt plug in construction, and the one end namely from iron core after rotor coil is wrapped is inserted in iron core.And then on iron core, press relative dimensions on-the-spot bending on rotor field spider of rotor field spider, make operation easier large, labour intensity is high, is unfavorable for producing in enormous quantities.
It is shaping that some coil forming machine often takes the curvilinear equation that is similar to carry out end to rotor coil.These approximate curvilinear equations often only could be applicable at some specific occasion such as large-scale and motor of multipole, do not have versatility.Some forming machines then can not realize the preforming of rotor coil completely, as rotor coil and the preforming etc. of head position straight line, need to and the on-the-spot bending of head position straight line, make operation easier large, labour intensity is high, is unfavorable for producing in enormous quantities
Therefore, how solution must not realize the preformed problem of rotor coil, is those skilled in the art's technical issues that need to address.
Summary of the invention
The object of this invention is to provide a kind of plug-in type rotor coil, the preforming of rotor coil can be realized.Another object of the present invention is to provide a kind of shaped device.
For solving the problem, the invention provides a kind of plug-in type rotor coil, comprising inner coil, the arc-shaped edges of described inner coil is positioned on ellipse, and the elliptic equation of described ellipse is
Wherein:
R is the radius of the rotor pressing ring for installing described inner coil;
α be described inner coil groove in the angle of straight line and its hypotenuse, and 90 ° of < α < 180 °.
Preferably, in described groove, the intersection point starting point of straight line and described arc-shaped edges is the minor axis starting point of described elliptic equation, and straight line and the tangent transition of described arc-shaped edges in described groove.
Preferably, described inner coil and head position straight line is parallel with straight line in described groove, and transition crossing with described arc-shaped edges.
Preferably, when seeing along direction that is described and head position straight line, in the described and line in the center of circle of head position straight line and described arc-shaped edges and described groove, the line angle in the center of circle of straight line and described arc-shaped edges is A=180y/z, wherein:
Y is the span of described rotor coil;
Z is the rotor number for placing described rotor coil.
The present invention also provides a kind of shaped device for processing plug-in type rotor coil described above, comprise pressure arc mould and the bending module making straight line in described groove become described α angle with described hypotenuse, the end surface shape of described pressure arc mould is identical with the shape of described arc-shaped edges.
Preferably, when described A angle is formed by described inner coil transition, described shaped device also comprises the inclined-plane module becoming (1/2) described A angle with the vertical plane of described hypotenuse.
Relative to above-mentioned background technology, plug-in type rotor coil provided by the present invention comprises lower floor Xia Quan, and the arc-shaped edges of inner coil is positioned on ellipse, and elliptic equation is
wherein, R is the radius of the rotor pressing ring arranging inner coil, and α is the straight line of described inner coil and the angle of its hypotenuse, 90 ° of < α < 180 °.Add and first can process arc-shaped edges according to elliptic equation man-hour, then straight line and and head position straight line in the groove processing inner coil on the basis of arc-shaped edges.The preforming of plug-in type rotor coil before insulating wrapping can be realized, improve production efficiency and the reliability of plug-in type rotor coil.
Accompanying drawing explanation
Fig. 1 is the position view of the hypotenuse of plug-in type rotor coil provided by the present invention;
Fig. 2 be plug-in type rotor coil provided by the present invention groove in straight line with and head position straight line angle schematic diagram;
Fig. 3 is the upper coil of plug-in type rotor coil provided by the present invention and the position view of inner coil.
In Fig. 1-Fig. 3:
Upper coil-1, inner coil-2.
Embodiment
Core of the present invention is to provide a kind of plug-in type rotor coil, to realize the preforming of rotor coil.Another core of the present invention is to provide a kind of shaped device.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
In motor, rotor coil comprises upper coil 1 and inner coil 2.Upper coil 1 and inner coil 2 include and head position straight line, arc-shaped edges and groove in straight line.Because the rotor pressing ring for arranging inner coil 2 is a cylinder, and the hypotenuse of inner coil 2 tilts crossing with rotor pressing ring, and its intersecting lens is one section of arc-shaped edges, and arc-shaped edges is positioned on ellipse.In fact the equation of requirement arc-shaped edges is exactly obtain elliptic equation.
As shown in Figure 1, if the radius of rotor pressing ring is R, the straight line of inner coil 2 and the angle of hypotenuse are α, 90 ° of < α < 180 °, angle β=the α-90 ° of the oval plane at place and the end face of rotor pressing ring, and make the oval center of circle on the center line of rotor pressing ring.Can try to achieve oval major axis radius is R/cos (β)=R/sin (α), and minor axis radius is R, and therefore the elliptic equation at arc-shaped edges place is
the straight line of inner coil 2 and the axis being parallel of rotor pressing ring.The line rod rotor coil introduced in " alternating current machine design manual " that the length of arc-shaped edges is worked out for Xiangtan Electrical Machinery Plant calculate single in coil hypotenuse launch long.
Relative to prior art, advantage of the present invention is: can realize the preforming of plug-in type rotor coil before insulating wrapping, do not need again at the scene to rotor coil bending, improve production efficiency and the reliability of plug-in type rotor coil, reduce labour intensity, and the production in enormous quantities of applicable factory, be applicable to the manufacture of large-sized plug-in type rotor coil.
In groove, the intersection point of straight line and arc-shaped edges is the end points of the minor axis of above-mentioned elliptic equation, and tangent with arc-shaped edges.
And head position straight line is crossing with arc-shaped edges and head position straight line parallels with straight line in groove, is in the outer round surface of the rotor field spider for support rotor trim ring together, therefore.
As shown in Figure 2, along and the direction of head position straight line, in groove straight line with and head position straight line is approximate is positioned on same circle, and in groove straight line and and head position straight line be all positioned in the normal direction of arc-shaped edges.And in the line in the center of circle of head position straight line and arc-shaped edges and groove the center of circle of straight line and arc-shaped edges connection formed by angle be A=180y/z.Wherein y is the span of rotor coil, and z is the rotor number for placing rotor coil.
A angle namely can by inner coil 2 transition formed, also can directly by straight line in groove with and head position straight line directly formed.If when A angle is formed by inner coil 2 transition, straight line in groove is then made to become B angle with the vertical plane of hypotenuse, then make also head position straight line become (A-B) angle with the vertical plane of hypotenuse, finally make also head position straight line become the angle of A angle with straight line in groove.If directly by straight line in groove with and head position straight line directly formed, then only need to make and head position straight line becomes A angle with the vertical plane of hypotenuse.
As shown in Figure 3, for upper coil 1, during an arc equation of the computationally hypotenuse of layer line circle, the cylinder crossing with the hypotenuse of upper coil is the cylinder that rotor pressing ring is formed together with inner coil 2, other computational methods are identical with the computational methods of inner coil 2, repeat no more herein.
The invention has the beneficial effects as follows: the forming method being deduced plug-in type rotor coil from principle, resolved into three separate processes by shaping for the end of rotor coil.Both being applicable to small business adopts two to three moulds simple and hydraulic press can complete the preforming of rotor coil, is also applicable to large enterprise and manufactures the preforming that corresponding plug-in type rotor coil shaped device once completes rotor coil.
Certainly, the design process of elliptic equation also can adopt other an arc equation or linear equation to carry out matching, and straight line also can adopt additive method processing and manufacturing in head position straight line or groove, or by the independently process that three separate procedure decomposition are more than three, repeat no more herein.
The present invention also provides a kind of shaped device for processing above-mentioned plug-in type rotor coil, comprises pressure arc mould, bending module and aid.The end surface shape of pressure arc mould is identical with the shape of arc-shaped edges, and bending module makes straight line in groove become α angle with hypotenuse, and aid has spanner, holder etc.
When A angle is formed by inner coil 2 transition, in order to reduce straight line in groove with and head position straight line forms the difficulty of A angle, when arranging bending module, one becomes (1/2) A angle inclined-plane module with the vertical plane of hypotenuse is also set.Process and head position straight line time, due to straight line in groove with and head position straight line be symmetric relation, bending module also can be adopted to process.
The corresponding processing step of processing rotor coil is: first preformation arc-shaped edges; Again straight line in hypotenuse and groove is carried out bending processing, make hypotenuse become α angle with straight line in groove, make straight line in groove become (1/2) A angle with the vertical plane of hypotenuse simultaneously; Finally also head position straight line and hypotenuse will carry out bending processing, and make straight line in groove become α angle with hypotenuse, and make also head position straight line become (1/2) A angle with the vertical plane of hypotenuse simultaneously.
Above plug-in type rotor coil provided by the present invention and shaped device are described in detail.Apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection range of the claims in the present invention.
Claims (6)
1. a plug-in type rotor coil, comprises inner coil, it is characterized in that, the arc-shaped edges of described inner coil is positioned on ellipse, and for the preforming before insulating wrapping of described plug-in type rotor coil, the elliptic equation of described ellipse is
wherein:
R is the radius of the rotor pressing ring for installing described inner coil;
α be described inner coil groove in the angle of straight line and its hypotenuse, and 90 ° of < α < 180 °
。
2. plug-in type rotor coil according to claim 1, is characterized in that, in described groove, the intersection point of straight line and described arc-shaped edges is the end points of the minor axis of described elliptic equation, and in described groove straight line and described arc-shaped edges tangent.
3. plug-in type rotor coil according to claim 2, is characterized in that, described inner coil and head position straight line is parallel with straight line in described groove, and crossing with described arc-shaped edges.
4. plug-in type rotor coil according to claim 3, it is characterized in that, along direction that is described and head position straight line, in the described and line in the center of circle of head position straight line and described arc-shaped edges and described groove, the line angle in the center of circle of straight line and described arc-shaped edges is A=180y/z, wherein:
Y is the span of described rotor coil;
Z is the rotor number for placing described rotor coil.
5. one kind for processing the shaped device of plug-in type rotor coil according to claim 4, it is characterized in that, comprise pressure arc mould and the bending module making straight line in described groove become described α angle with described hypotenuse, the end surface shape of described pressure arc mould is identical with the shape of described arc-shaped edges.
6. shaped device according to claim 5, is characterized in that, when described A angle is formed by described inner coil transition, described shaped device also comprises the inclined-plane module becoming (1/2) described A angle with the vertical plane of described hypotenuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210584333.4A CN103078433B (en) | 2012-12-28 | 2012-12-28 | Plug-in rotor coil and forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210584333.4A CN103078433B (en) | 2012-12-28 | 2012-12-28 | Plug-in rotor coil and forming device |
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| Publication Number | Publication Date |
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| CN103078433A CN103078433A (en) | 2013-05-01 |
| CN103078433B true CN103078433B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210584333.4A Active CN103078433B (en) | 2012-12-28 | 2012-12-28 | Plug-in rotor coil and forming device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477763A (en) * | 2002-07-18 | 2004-02-25 | ��ʽ�����װ | Method for making rotary motor stator winding |
| JP2008048488A (en) * | 2006-08-11 | 2008-02-28 | Hitachi Ltd | Dynamo-electric machine and method of forming winding of dynamo-electric machine |
| JP4539263B2 (en) * | 2003-09-25 | 2010-09-08 | 株式会社デンソー | Motor stator and coil forming method thereof |
| CN201750304U (en) * | 2010-06-30 | 2011-02-16 | 中船重工电机科技股份有限公司 | Coil radian molding device |
| JP2011120356A (en) * | 2009-12-02 | 2011-06-16 | Toyota Motor Corp | Stator and method of manufacturing stator |
| CN201975888U (en) * | 2011-01-21 | 2011-09-14 | 湖南汉龙水电设备股份有限公司 | Miniature rotor clamping ring structure for brushless exciter |
-
2012
- 2012-12-28 CN CN201210584333.4A patent/CN103078433B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477763A (en) * | 2002-07-18 | 2004-02-25 | ��ʽ�����װ | Method for making rotary motor stator winding |
| JP4539263B2 (en) * | 2003-09-25 | 2010-09-08 | 株式会社デンソー | Motor stator and coil forming method thereof |
| JP2008048488A (en) * | 2006-08-11 | 2008-02-28 | Hitachi Ltd | Dynamo-electric machine and method of forming winding of dynamo-electric machine |
| JP2011120356A (en) * | 2009-12-02 | 2011-06-16 | Toyota Motor Corp | Stator and method of manufacturing stator |
| CN201750304U (en) * | 2010-06-30 | 2011-02-16 | 中船重工电机科技股份有限公司 | Coil radian molding device |
| CN201975888U (en) * | 2011-01-21 | 2011-09-14 | 湖南汉龙水电设备股份有限公司 | Miniature rotor clamping ring structure for brushless exciter |
Non-Patent Citations (1)
| Title |
|---|
| 圈式定子成型线圈端部弧形的计算;盛兆年;《中小型电机》;19970831(第4期);22-23 * |
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