CN104638782A

CN104638782A - Plate bundle for manufacturing stator

Info

Publication number: CN104638782A
Application number: CN201410858220.8A
Authority: CN
Inventors: D·格雷梅尔; S·迪德拉; L·托特
Original assignee: Robert Bosch GmbH
Current assignee: SEG Automotive Germany GmbH
Priority date: 2013-11-07
Filing date: 2014-11-05
Publication date: 2015-05-20
Anticipated expiration: 2034-11-05
Also published as: MX2014013540A; ES2547631R1; DE102013222643A1; CN104638782B; ES2547631A2; HU230563B1; ES2547631B1; MX341251B; HUP1400524A2

Abstract

The invention relates to a flat package for preparing a cylindrically curved stator (6) of an electrical machine, consisting of a plurality of lamellae (2) with successive grooves (3) and teeth (4) with tooth tips (5), and in which grooves (3) the winding wires (14) of a stator (10) arranged. Overhang wires (9) of the stator winding (10) protrude from one end (12) of the flat package, and are disposed inside overhang grooves (11) of the other end (13) of the flat packet on the case of ready-bent stator (6). The tooth tips (5.1) of the overhang grooves (11) adjacent teeth (4) have the training broadened slot openings narrower than the remaining tooth tips (5) of the flat package.

Description

For the manufacture of the flat packaging of stator

Technical field

The present invention relates to the flat packaging for the manufacture of stator of preamble according to claim 1.

Background technology

For the stator manufacturing motor can use the thin slice become from thin plate punching, first they be assembled into a so-called flat packaging.Each thin slice has groove and the tooth of the arrangement that follows one another, and makes also to form corresponding groove and denture in flat packaging.The wire of stator winding can be put in groove, make the flat packaging with the stator winding put into bend to columnar stator with bending method subsequently.

The stator winding putting into groove can be configured to, and making has five wire turns to stretch out as pendency wire in one end of flat packaging, and when flat packaging being bent to columnar stator, this pendency wire is placed in corresponding groove at the other end of flat packaging.

From US 7,366,000 B1 knows a kind of motor, and it has a columnar stator manufactured by flat packaging.For reducing magnetic noise, the tooth of stator is equipped with the tooth head of different in width.

Summary of the invention

The flat packaging with the stator for the manufacture of cylindrical bend of claim 1 feature constructed according to the invention has advantage: when flat packaging being bent to columnar stator and being connected to each other at the two ends of this flat packaging, successfully the pendency wire stretched out in one end of flat packaging of stator winding can be put into corresponding pendency groove.

The channel opening limited by tooth head in both sides of pendency groove has such A/F respectively, and it is greater than the width comprising pendency wire that surround the insulant of pendency wire, that will put into pendency groove.Putting into of pendency wire is made to become easy especially by this large A/F.Particularly advantageously dangling the A/F of groove can than the A/F large 4% to 8% of other groove.Easily can put into pendency groove for pendency wire on the one hand thus, reliably pendency wire be remained in pendency groove under the state that stator cylinder shape bends on the other hand.That is by the columnar bending A/F also reduced at pendency groove place of flat packaging, the pendency wire reliably keeping putting in pendency groove is made.

Have in the flat packaging of the A/F of 2.09mm in its groove routine, for pendency groove provides the A/F of 2.19mm respectively.Can simplify the assembling of pendency wire thus significantly, pendency wire successfully can put into pendency groove when manufacturing columnar stator.Realize thus, pendency wire reliably remains in pendency groove in the stator completed simultaneously.

Particularly advantageously, the groove that dangles has from bottom land to tooth head configuration than height larger when remaining groove.Thus can with a upward opening, cross section be C shape insulant surround to introduce pendency groove pendency wire, wherein can use insulating paper as insulant.Because pendency wire together with it on the downside of it around insulant be placed on be positioned at pendency groove winding conducting wire on, so for winding conducting wire pendency groove in layout obtain than height larger in remaining groove.Upward opening, relative to the insulant under shed, there is advantage around the insulant of pendency wire: the pendency wire with the insulant of upward opening obviously more easily can put into pendency groove.Therefore, for obtaining this assembling advantage, pendency groove is configured to have larger height between bottom land and tooth head.

In order to realize larger height between the bottom land and tooth head at pendency groove place, the height of the tooth head at pendency groove place is especially less relative to remaining tooth head, but the total tine length comprising tooth head keeps equal for all teeth.The shortening of tooth head successfully can realize and not produce about any noticeable change of magnetic characteristic in the region of pendency groove.

Accompanying drawing explanation

The present invention is described in detail according to embodiment illustrated in the accompanying drawings.

In accompanying drawing:

Fig. 1 shows the vertical view by multiple laminar flat packaging,

Fig. 2 shows the end-view of the flat packaging of Fig. 1,

Fig. 3 shows by the end-view being similar to completely bending stator according to the flat packaging of Fig. 1,

Fig. 4 shows the enlarged drawing of the stub area that the flat packaging that is bent contacts when bending to stator,

Fig. 5 shows the enlarged drawing of the end-view of Fig. 2, has the pendency wire shown.

Embodiment

Have many single thin slices 2 as the thin plate encapsulation 1 shown in flat packaging in FIG, this thin slice such as can be made from the steel plate stamping that 0.5mm is thick.The thin slice 2 of the side of the thin plate encapsulation 1 of Fig. 1 can be seen in the end-view of Fig. 2.

Each thin slice 2 has groove 3 and tooth 4.At the upper end of tooth 4 structure tooth head 5, the width of this tooth head is selected like this, makes to produce suitable A/F between tooth head 5.

In groove 3, put into the wire of stator winding, but this is not shown in fig. 1 and 2.

Illustrate how from the stator manufacturing cylindrical bend according to the flat packaging of Fig. 1 and Fig. 2 according to Fig. 3 and Fig. 4 now.

Show simplifiedly in the end-view of Fig. 3 and almost complete bending stator 6, this stator 7 has the groove 3 and tooth 4 that radially-inwardly point within it.Show groove 3 and tooth 4 in region for the sake of simplicity only below stator 6 in figure 3, two ends of the flat packaging of Fig. 1 will be assembled into a closed track ring 8 there.The so-called pendency wire 9 of stator winding 10 is placed in corresponding pendency groove 11 in this case.This point can be seen significantly in the diagram according to the figure of the amplification in the region of two ends 12,13 of bending flat packaging 1.

Fig. 4 shows the winding conducting wire 14 put in groove 3, this winding conducting wire by insulating paper 15 around, insulating paper 15 surrounds multiple winding conducting wire 14 with cross section C shape upward opening.Pendency groove 11 also not fully is filled by winding conducting wire 14, because also must put into pendency wire 9 from above in pendency groove 11.For putting into of pendency wire 9 as far as possible successfully can be carried out, they are bent upwards a low-angle α.In addition, pendency groove 11 forms and has larger A/F in the region of tooth head 5, as it is shown specifically according to Fig. 5.

Can also see in the diagram, pendency wire 9 by upward opening, cross section become the form of C shape be insulating paper 16 insulant around.The insulation arranged by this way at pendency wire 9 place needs a little spatial accommodation increased in pendency groove 11, more Specifically increases the degree of the material thickness of about insulating paper 16.

The end-view of flat packaging of the present invention is enlargedly show, the size of groove and tooth head can be found out better in Fig. 5.It stretches out otherwise the pendency wire 9 of the stator winding here do not illustrated at the left end 12 of flat packaging, as can be seen in the diagram equally.As shown in Figure 4, before flat packaging being bent to as shown in Figure 3 a columnar stator 6, pendency wire 9 can be bent upwards an angle [alpha].

When such as in figs. 3 and 4 shown in flat packaging is bent to a columnar stator 6 time, pendency wire 9 put into dangle groove 11.Tooth head 5.1 its width in the region of pendency groove 11 reduces relative to remaining tooth head 5, makes to obtain the A/F w2 larger relative to other A/F w1 for pendency groove 11.Can also see, at the region internal tooth head 5.1 of pendency groove 11, there is the height less than remaining tooth head 5 in Figure 5.Thus at the height h2 obtained from bottom land 17 to tooth head 5.1 in groove 11 than larger when tooth head 5 in routine that dangles, conventional tooth head 5 has highly h1 from bottom land 17 to tooth head 5.In the stator manufactured, the pendency wire 9 of stator winding is positioned at position represented by dashed line in pendency groove 11.

Claims

1. for the manufacture of the flat packaging of the stator (6) of the cylindrical bend of motor, this flat packaging is made up of multiple thin slice (2), described thin slice has the groove (3) that follows one another and the tooth (4) with tooth head (5), the winding conducting wire (14) of stator winding (10) is positioned at the groove (3) of described flat packaging and the pendency wire (9) of stator winding (10) stretches out at end (12) place of described flat packaging, described pendency wire (9) is placed in the pendency groove (11) of another end (13) of described flat packaging when completing bending stator (6), it is characterized in that, the tooth head (5.1) of the described tooth (4) adjacent with described pendency groove (11) has the width less than remaining tooth head (5) of described flat packaging to form the channel opening widened.

2. flat packaging according to claim 1, it is characterized in that, the channel opening limited by tooth head (5.1) in both sides of described pendency groove (11) has A/F (w2) respectively, and this A/F is equal to, or greater than the width with the pendency wire (9) of affiliated insulant will putting into pendency groove (11).

3. flat packaging according to claim 2, is characterized in that, the A/F (w2) of described pendency groove (11) is than the A/F (w1) large 4% to 8% of other groove (3).

4. the flat packaging according to any one of the claims, it is characterized in that, described pendency groove (11) has the height (h2) larger than remaining groove (3) from bottom land (17) to tooth head (5.1).

5. flat packaging according to claim 4, is characterized in that, less relative to remaining tooth head (5) at the height of the tooth head (5.1) at described pendency groove (11) place.

6. the flat packaging according to any one of the claims, it is characterized in that, pendency wire (9) in described pendency groove (11) be positioned at be made up of the insulating material of paper or other film-form, cross section is the insulant of C shape, the open side of this insulant is pointed to towards channel opening.