CN103078433A - Plug-in rotor coil and forming device - Google Patents
Plug-in rotor coil and forming device Download PDFInfo
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- CN103078433A CN103078433A CN2012105843334A CN201210584333A CN103078433A CN 103078433 A CN103078433 A CN 103078433A CN 2012105843334 A CN2012105843334 A CN 2012105843334A CN 201210584333 A CN201210584333 A CN 201210584333A CN 103078433 A CN103078433 A CN 103078433A
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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 characterized in that 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 be used to 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 the moulding winding, and rotor adopts plug in construction.
At present, rotor coil mostly is to adopt plug in construction, and namely the end from iron core inserts in iron core after rotor coil is wrapped.And then press relative dimensions on-the-spot bending on rotor field spider of rotor field spider at iron core, and make operation easier large, labour intensity is high, is unfavorable for producing in enormous quantities.
The curvilinear equation that some coil forming machine is often taked to be similar to carries out the end moulding to rotor coil.These approximate curvilinear equations often only could be fit in some specific occasion such as large-scale and multipole motor, do not have versatility.Some forming machines then can not be realized the preforming of rotor coil fully, such as preforming rotor coil and head position straight line etc., 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 purpose of this invention is to provide a kind of plug-in type rotor coil, can realize the preforming of rotor coil.Another object of the present invention provides a kind of shaped device.
For addressing the above problem, the invention provides a kind of plug-in type rotor coil, comprise inner coil, the arc-shaped edges of described inner coil is positioned on the ellipse, and the elliptic equation of described ellipse is
Wherein:
R is the radius for the rotor pressing ring that described inner coil is installed;
α is the angle of straight line and its hypotenuse in the groove of described inner coil, and 90 °＜α＜180 °.
Preferably, the intersection point starting point of straight line and described arc-shaped edges is the minor axis starting point of described elliptic equation in the described groove, and straight line and the tangent transition of described arc-shaped edges in the described groove.
Preferably, the also head position straight line of described inner coil is parallel with straight line in the described groove, and intersects transition with described arc-shaped edges.
Preferably, when seeing along direction described and head position straight line, the line angle in the line in described and head position straight line and the center of circle of described arc-shaped edges and the center of circle of the interior straight line of described groove and described arc-shaped edges is A=180y/z, wherein:
Y is the span of described rotor coil;
Z is for being used for placing the rotor number of described rotor coil.
The present invention also provides a kind of shaped device be used to processing plug-in type rotor coil described above, comprise and press the arc mould and make the interior straight line of described groove become the bending module of 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 was formed by described inner coil transition, described shaped device also comprised the inclined-plane module that becomes (1/2) described A angle with the vertical plane of described hypotenuse.
With respect to the above-mentioned background technology, plug-in type rotor coil provided by the present invention comprises the Xia Quan of lower floor, and the arc-shaped edges of inner coil is positioned on the ellipse, and elliptic equation is
Wherein, R is the radius that the rotor pressing ring of inner coil is set, and α is the straight line of described inner coil and the angle of its hypotenuse, 90 °＜α＜180 °.Add and to process arc-shaped edges according to elliptic equation first man-hour, again straight line and and head position straight line in the groove of the basis of arc-shaped edges processing inner coil.Can realize the preforming of plug-in type rotor coil before insulating wrapping, improve production efficiency and the reliability of plug-in type rotor coil.
Description of drawings
Fig. 1 is the position view of the hypotenuse of plug-in type rotor coil provided by the present invention;
Fig. 2 be in the groove of plug-in type rotor coil provided by the present invention 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.
Among Fig. 1-Fig. 3:
Upper coil-1, inner coil-2.
Embodiment
Core of the present invention provides a kind of plug-in type rotor coil, to realize the preforming of rotor coil.Another core of the present invention provides a kind of shaped device.
In order to make those skilled in the art person understand better the present invention program, below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the 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 the interior straight line of groove.Because being used for arranging the rotor pressing ring of inner coil 2 is a cylinder, and that the hypotenuse of inner coil 2 and rotor pressing ring tilt is crossing, and its intersecting lens is one section arc-shaped edges, and arc-shaped edges is positioned on the ellipse.Requiring the equation of arc-shaped edges in fact is exactly to 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 °＜α＜180 °, the plane at oval place and the end face of rotor pressing ring angle β=α-90 °, and the center of circle that makes ellipse is 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, so the elliptic equation at arc-shaped edges place is
The straight line of inner coil 2 is parallel with the axis of rotor pressing ring.The length of arc-shaped edges is that the coil hypotenuse in the line rod rotor coil calculating list of introducing in " the alternating current machine design manual " of Xiangtan Electrical Machinery Plant's establishment launches long.
With respect 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 the rotor coil bending, production efficiency and the reliability of plug-in type rotor coil have been improved, reduced labour intensity, and the production in enormous quantities of suitable factory, be fit to the manufacturing of large-sized plug-in type rotor coil.
The intersection point of straight line and arc-shaped edges is the end points of the minor axis of above-mentioned elliptic equation in the groove, and tangent with arc-shaped edges.
And a head position straight line parallels with straight line in the groove, is in the outer round surface for the rotor field spider of support rotor trim ring together, and therefore, and head position straight line and arc-shaped edges are crossing.
As shown in Figure 2, along and the direction of head position straight line, in the groove straight line with and approximate being positioned on the same circle of a head position straight line, and in the groove straight line and and a head position straight line all be positioned on the normal direction of arc-shaped edges.And head position straight line and the line in the center of circle of arc-shaped edges be connected the angle that is connected in straight line and the center of circle of arc-shaped edges with groove be A=180y/z.Wherein y is the span of rotor coil, and z is for being used for placing the rotor number of rotor coil.
The A angle namely can form by inner coil 2 transition, also can be directly by straight line in the groove with and a head position straight line directly form.When if the A angle forms by inner coil 2 transition, then make the interior straight line of groove become the B angle with the vertical plane of hypotenuse, then make and a head position straight line becomes (A-B) angle with the vertical plane of hypotenuse, finally make and a head straight line becomes the angle of A angle with the interior straight line of groove.If directly by straight line in the groove with and a head position straight line directly form, then only need make and a head position straight line becomes the A angle to get final product with the vertical plane of hypotenuse.
As shown in Figure 3, for upper coil 1, when an arc equation of the hypotenuse that calculates upper coil, the cylinder that intersects with the hypotenuse of the upper coil cylinder that to be rotor pressing ring consist of with inner coil 2, other computational methods are identical with the computational methods of inner coil 2, and this paper repeats no more.
The invention has the beneficial effects as follows: derived the forming method of plug-in type rotor coil from principle, three separate processes have been resolved in the end moulding of rotor coil.Both adopted simple two to three moulds and hydraulic press can finish the preforming of rotor coil applicable to small business, and also be applicable to large enterprise and make the preforming that corresponding plug-in type rotor coil shaped device is once finished rotor coil.
Certainly, the design process of elliptic equation also can adopt other an arc equation or linear equation to come match, and straight line also can adopt the additive method processing and manufacturing in head position straight line or the groove, perhaps be the independently process more than three with three separate Process Decompositions, this paper repeats no more.
The present invention also provides a kind of shaped device be used to processing above-mentioned plug-in type rotor coil, comprises pressing arc mould, bending module and aid.Press the end surface shape of arc mould identical with the shape of arc-shaped edges, the bending module makes the interior straight line of groove become the α angle with hypotenuse, and aid has spanner, holder etc.
When the A angle is formed by inner coil 2 transition, for reduce straight line in the groove with and head position straight line form the difficulty of A angle, when the bending module is set, an inclined-plane module that becomes (1/2) A angle with the vertical plane of hypotenuse is set also.When processing and head position straight line and since in the groove straight line with and a head position straight line be symmetric relation, also can adopt the processing of bending module.
The corresponding processing step of processing rotor coil is: first preformation arc-shaped edges; Again straight line in hypotenuse and the groove is carried out bending processing, make the interior straight line of hypotenuse and groove become the α angle, make simultaneously the interior straight line of groove become (1/2) A angle with the vertical plane of hypotenuse; At last will and head position straight line and hypotenuse carry out bending processing, make that straight line becomes the α angle in the groove with hypotenuse, make simultaneously and a head straight line becomes (1/2) A angle with the vertical plane of hypotenuse.
Above plug-in type rotor coil provided by the present invention and shaped device are described in detail.Used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection range of claim of 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 the ellipse, and the elliptic equation of described ellipse is
Wherein:
R is the radius for the rotor pressing ring that described inner coil is installed;
α is the angle of straight line and its hypotenuse in the groove of described inner coil, and 90 °＜α＜180 °.
2. plug-in type rotor coil according to claim 1 is characterized in that, straight line is the end points of the minor axis of described elliptic equation with the intersection point of described arc-shaped edges in the described groove, and the interior straight line of described groove and described arc-shaped edges are tangent.
3. plug-in type rotor coil according to claim 2 is characterized in that, the also head position straight line of described inner coil is parallel with straight line in the described groove, and intersects with described arc-shaped edges.
4. plug-in type rotor coil according to claim 3, it is characterized in that, along direction described and head position straight line, the line angle in the line in described and head position straight line and the center of circle of described arc-shaped edges and the center of circle of the interior straight line of described groove and described arc-shaped edges is A=180y/z, wherein:
Y is the span of described rotor coil;
Z is for being used for placing the rotor number of described rotor coil.
5. shaped device that is used for processing plug-in type rotor coil claimed in claim 4, it is characterized in that, comprise and press the arc mould and make the interior straight line of described groove become the bending module of 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 was formed by described inner coil transition, described shaped device also comprised the inclined-plane module that becomes (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 true CN103078433A (en) | 2013-05-01 |
| CN103078433B 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 |
|---|
| 盛兆年: "圈式定子成型线圈端部弧形的计算", 《中小型电机》, no. 4, 31 August 1997 (1997-08-31) * |
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