DE2717081A1 - REEL BODY - Google Patents

Description

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j ^Kf.07; {J, ί, Ο / ΰίΗ L CiL ■ ΑΚΪΠ MG LCILLSCi! AFT | ; ; ■■,

j MAiiiiüEi;.: Bf.UAi / bOVini

j Mp No. 559/77 Mannheim, April 15, 1977

J ZFE / P4-Kk / Mr.

! Bobbin

j _C

The invention relates to a bobbin, deissen the winding

j receiving bobbin is limited by flanges, wherein a flange opening designed as an inlet and outlet is provided on one of the flanges.

j The invention also relates to a bobbin with preference * i have a rectangular cross-section, the winding of which is formed with rounded corners and accommodating the winding

I is limited by flanges, with one of the flanges being a flange breakthrough designed as an inlet and outlet is provided.

Such winding bodies are already in different! constructive variants known. They are designed so I that they have the task of machine and manual winding i of the bobbin with suitable winding wire production- ' to simplify technically, to fulfill, i.e. that through the

809845/0012

7081

suitable arrangement of outlet and inlet channels for the winding wire the time-consuming isolation of the beginning and end of the winding wire or the sticking or insertion of an insulating strip practically omitted in the area of the channel after inserting the beginning of the wire and before winding the bobbin. Farther the channels ensure a constant position of both the winding wire beginning and the end. In some cases they are the channels are used to guide the beginning and end of the winding and are almost tangential to the winding body and delimiting it Flange arranged. However, this has various disadvantages, which can be seen in the fact that the changing room limiting and the winding wire beginning and the winding wire end receiving flange in a suitable V / eise thicker dimensioned must be so that only a few layers of winding wire can be wound onto the bobbin. In the case of several resistance windings arranged one above the other (bifilar winding) on such a bobbin but the existing flange surface is sufficient for tangentialcs Leading out the winding wires of the different layers, which are guided in pairs, does not work.

But if a bobbin constructed in this way requires a lot of space due to its dimensions, but only for a few layers is suitable, then the application options are severely restricted and such a solution is very much unsatisfactory.

The present invention was therefore based on the object of improving a coil former of the type mentioned at the outset in such a way that that a less labor-intensive isolation of the led out by a simple structural design Winding wire beginning with regard to the layers of the coil lying one above the other on the flange or none correspondingly expensive Design of the flange is required, although the insulation of the lead-out winding wire opposite the windings in the changing room is efficient and inexpensive.

809845/0012

zrr./r* F 1 w7 (; p.ooo'KC)

According to the invention, this object is achieved with a bobbin, whose winding body accommodating the winding is limited by flanges, with one of the flanges being an input and Outlet formed flange breakthrough is provided, solved in that the flange breakthrough as having undercuts Form breakthrough is formed and runs tangentially to the winding receiving outer surface of the winding body, and that the undercuts are suitable for fixing an insulating slide.

Thanks to this design of the bobbin, it is possible that after placing the Wiokeldrahts start the labor-intensive - In the meantime automated - covering process of the Winding wire start in the area of the channel, i.e. the entire flange height and a partial area of the winding body surface using a suitable insulating film is not necessary before wrapping.

The insulation security and electrical influence between the lead-out winding wire start and the coil is through achieved a self-locking iso slide insertable into the undercut of the shaped opening.

Due to the configuration of the mold opening and isoslide the beginning of the winding wire, without having to lead it to a soldering support point, can only be done with the Deformable lips provided self-locking Iso slide can be set in the form breakthrough. The edge length ratio Isoslider and shape opening are selected in such a way that the isoslider can be inserted with any edge is.

According to the invention, the same task continues with one Coil body with a preferably rectangular cross-section, the winding of which is designed with rounded corners The winding body is limited by flanges, with a flange designed as an inlet and outlet on one of the flanges.

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break is provided, solved in that the Flanachausbruch is designed as a shaped opening having undercuts and is tangential to an axjfnahmenden the winding large outer surface of the bobbin runs, wherein the Form breakthrough in a winding space formed on the first flange outside a winding space formed by the winding body and the flanges Contact carrier boom opens, and the undercuts are suitable as a means of fixing an Iscschiebers.

This ensures that the start of the winding is guided exactly in a straight line over a long distance after you leave the forrad breakthrough, so that when layer or pile winding is used, the adjacent windings are firmly seated within the winding space on aera bobbin, whereby the forces acting in the winding cannot become active when a current is flowing, ie weaken or destroy the insulation of the winding wire of the windings through relative movement. Certainly these forces cancel each other out at most points, but not at the essential points, namely on the inner and outer layers of the winding and in the area of the flange surface, i.e. the edge zones. As is known, the forces in the turns of a coil grow with the coil current and can therefore lead to a destruction of the insulation of the winding wire if the essential areas of the coil body are not designed appropriately - here especially the winding wire run-in kanol in the flange and winding body area; In addition, the coil current flows in the stray field of the magnetic circuit surrounding the coil body, which, in conjunction with this scatter and the current flow, forms an angle in contrast to the main field, i.e. additional forces arise that accelerate destruction in the endangered winding area.

809845/0012

Λ I 1 (G7'jHOOn / Ktl

BATH ORIGINAL

In a Lwock-like further development of the invention, it is therefore proposed to design the shape break as a T-shaped slot running parallel to the coil axis, the base of which has an outlet bevel rising from the outer edge in the first flange and into a recess in the area of an end face of the coil body uen flange of angled contoured beam boom enters.

As a result, it is achieved, on the one hand - as already mentioned above - that the winding wire stop is guided in a straight line over a long distance and through the isoslide made of Flr-chnaterir bottom of the T-shape slit Weihend strength can be fixed without hanging up before the Uickeldrahtarifank a irn or at Kontaktträgeraus'l.eger arranged contact carrier (solder terminals), and that on the other by ö.cn selbsthemvienden I so the slide-Tsolations Schwr. ohstclle between V.'ickoldrahtnn C -: ng and coil winding in the flange is permanently and effectively closed, since the plastically lei-c /.- ΐ deforinable stepping tongue of the insulating slide encloses the winding wire and creates a line support in the base of the T-shaped slot.

In a further expedient embodiment of the invention i the recess is in direct): connection with a; n the; Contact carrier cantilever receiving part of a pocket for the contact carrier (solder base) and serves as a Poricbtete guide for the coil wire. Through this invention

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Forming the bobbin it is possible to keep the beginning of the winding wire relatively long. This means that the Kompcnsationsspielraum vorden is considerably enlarged for öe.n winding wire beginning, wherein the V / ickeldrahtanfang between Isoschieber and Lötzstützpunkt by an outflow incline Einrnündungsradius between the T-shaped slot and _the: is cut into two Teilkorapensationslärigen. ■

809845/0012

/ IL /! »«! (I (fi / 'jliO!' F!. 'KI'l

BATH ORIGINAL

In addition, the start of the thread, which is only insulated with lacquer, is therefore is protected against direct mechanical influence.

It is also proposed that at least expediently two contact carrier cantilevers pointing away from an abscissa axis are formed on the first flange in such a way that their functional areas point diametrically away from each other and the Pocket each of a contact carrier arm extends perpendicular to the coil body axis.

A bobbin designed in this way according to the invention can easily be produced as a cast or injection-molded part with precise shape and dimensional stability with only minimal mass volume to be flawless Manufacturing is required. The one in the contact carrier boom The pocket provided is designed in such a way that a contact carrier (soldering support point) without any special or costly preparation can be inserted in a simple manner in a less labor-intensive manner, both by hand and by machine, with this contact carrier is fixed there in a self-locking manner before the beginning of the winding wire is placed.

So if a fully automated production is carried out should be, then · is due to the constructive training of the in the contact carrier arm arranged pocket ensures that during the winding vorgongs not yet with a winding wire start or the end of the occupied contact carrier remains fixed in the pocket.

Advantageous configurations of the subject matter according to the invention can be found in the further subclaims.

The particular advantage of the present invention can now be seen in the fact that the design of the inventive Bobbin a safe and effective insulation of the winding wire beginning and end is always guaranteed, since the Iso-slide can also be inserted after winding the bobbin is. On the other hand, if this is the case at the beginning of the. - 7 -

809845/0012

BAP ORIGINAL

27J7081

Duty cycle was not used due to a mechanical defect, these coils are not counted as scrap, wow it is the loss of winding wire material and coil formers!) Thus minimized, wrong. Contrast with the well-known coil formers;!, Where the possibility of an after- |

Insulation of the beginning of the winding wire against -j

ί

via the turns of the windings of the Spulo is not gtjgebcvi, so that due to such a coil

ι the missing Isolotion is to be regarded as scrap. j

Further details of the invention and expedient developments v / ground below using one shown in the drawing / execution example described and explained in more detail.

He. shows:

Fig. 1 is a plan view of a small winding surface ! a bobbin with the he inventionv / e side Sub-areas;

j Fig. 2 a? Sectional view along the line F-F in of Fig. 1;

3 shows a view in the direction of the coil axis on the I.

Face of the first flange. I.

The bobbin is attached to the narrow sides of a flange; formed contact carrier cantilevers pointing diametrically away from each other is a one-piece bobbin 30, which in the area I of the winding body and thus also of the flanges bordering the winding space has a rectangular cross-sectional shape and;

i is used in particular as a magnetic coil in electromagnetic drives j. The choice of the rectangular cross-sectional shape j of the coil body is justified by the fact that such a j Coil body offers a larger heat-emitting surface and the Creates conditions for a low copper weight. '

j - 8 -

809845/0012

The coil body designated 30 in FIG. 1 has two flanges 32, 33 delimiting a winding body 31, which together form a winding space 31? form. ^{The contour support arms 32b, 32h 1 formed} on the narrow sides 32a of the first flange 32 protrude beyond the coil body 30 in the direction of the coil axis Z by a multiple d of the flange thickness 32c. In contrast, a length and width dimension of the contact carrier arms 32b, 32b ^{1, which are} identical in the essential functional area 3 '+, is determined by the electrical system. A difference / between the contact carrier extensions 32b, 32b * formed diametrically on the end face of the first flange 32 is to be seen in the fact that that contact carrier extension 32b into which a T-shaped slot 35 opens is located at its facing away from a large active body area 31b. free end 36 has a flag 37 for receiving Spulend uteri. The flag 37 is directed to an ordinate axis Y under an angle of incidence on the winding axis 7 and runs with its edges 37b, 37b 1 delimiting a fish 37a in the direction of the edges 37b, 37b ^1, parallel to the axis of the abscissa X «j ParaD IeI yvr bobbin axis Z and Abs / usseriaobse X also passes the T-shaped slot 35 according to the invention in the first flange 32 and the Kontokttr & ger & uolegcr 32b, which formed by a transverse edge 35a reason is deeper than a the large and the small V / i ekel surface 31b , 31c connecting curvature

As can be seen in FIG. 1, the contact

trägercucleger 32b in its functional area 3 ^ a vertical '.

to the bobbin axis Z running pocket 39, with whose:

Help a not shown in the drawing Kontsktträger-Löt-!

support point for the beginning of the winding wire on a free side j

and screw or plug contact for a lead on a j

other free side is fixable. j

In the embodiment shown in the drawing j the pocket 39 has the shape of a gutter holder and is arranged in such a position that a first leg

809845/0012

/ Ff / ι ι Γ ι Μ / ..!> C.r. κί ι

BATH L

runs parallel to the T-shaped slot. A second
Leg 39b is arranged perpendicular to the ground and a
third leg 39c takes a tube to / wide leg 39b
obtains an obtuse angle and ends in a partial area surface A ¹ O.
The sub-area area 40 runs under your surface
/ Adjusting angle S to the first spool flange 3? and is through
eimm a bobbin opening ¹ A tangent web 42 is limited. The pier 4? serves his \ 3C? it.s at the same time as a carrier * of the | Flag 37, which is thus trumpet-shaped to the area area AO; is arranged. j

An indentation A3 j visible in the partial area AO has the task of providing one on a contact carrier ^!

{see B] ecb pass-through to be recorded in a form-fitting manner. j

j In the T-shaped slot 35 is ? \ n · Reception and fixation j

j of an iso-slide valve AA a Hinterorsohne.idimg 45 is provided which is designed in such a way that avr wf increasing iso-slide type AA

ι it is self-sufficient "imend ^and thus held captive. The- • j

Hjntorschrjcidur.g 45 is ^ with the crossbar of the T but in the; negative sense: -u. previous, but from konf.igu.rativen

For reasons, different spacing ratios should be considered i

The cross web, the free end and the longitudinal web are counted. The I

Kinterrchncidimg A5 v;. Is therefore based on the flange thickness 32c and the S

Contact support bracket 32b formed thereon on the stirric side;

forms, so that a weakening of the j

Flange 32 by one in this figure only on the contact carrier:

boom 32b 'visible rib AG rnasccinaßig excluded again \

is like. Between the winding space 31a and the undercut h ^r j j

only a minimal remains of the flange 32 but not j

statically weakening flange thickness 32c ¹ , so that the i

Winding of the bobbin 30 thereby no mechanical ^!

Disadvantages for individual or all turns of the winding wire j

i of the coil. The one running with a broad side 32a ^{1 of} the flange j 32, so eccentrically perpendicular to the coil! Undercut 45 directed towards the body axis Z has egg guide j

- 10 -

809845/0012

/ rr / r » r ι ic.7i iorri.!

BATH ORIGINAL

rise 45a and their depth falls below a maximum flange height, calculated from a small area 31c of the winding body 31, so that an isolating slide kk ( not shown in the drawing) closes the slot 35 exactly. The undercut 45 can of course also be provided with notch-like noses, so that once inserted

Iso slide neither by vibrations nor by applying a * minimal force from its location is to be spent.

The j corresponding to the longitudinal web of the T in the negative sense

i essential part of the slot 3Γ> expands from winding space 31a pointing away, so that the winding wire with corresponding! Degrees of freedom can be moved both to the one and to the other side in the direction of an ordinate axis Y. A conical shaped pin, centered on the small surface 31c of the winding body 31 from the contact carrier extension 32b, is used to receive the winding wire start during the beginning of the winding process, but this does not rule out the possibility that the winding wire catch also directly into the Pocket of the Kontaktträgerouslegers 32b inserted contact carrier can be placed.

On the flange 33 are central to the small surface 31c both in the direction of the coil body axis Z ice and in the direction of X axis of the abscissa cam 48 formed, the task of which is the Coil body 30 in the application, for example in one electromagnetic system to fix this positively.

As can be seen from FIG. 2, the cams 48 formed on the flange 33 in the direction of the AbsEissen axis X are congruent with a partial area 49 of the Kontaktti-ägerauslegers 32b, 32b ^{1 , while the cams 48 f} extending in the direction of the coil body axis Z, which also the Tangent bobbin opening 41, are much narrower. For the purpose of avoiding a reversed use of the coil

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/ I I I '1 I i K./ι ..- Ί'ίΓ.'ΚΓ ι

BATH ORIGINAL

body 30, for example in a housing of an electromagnetic contactor, this has a further, but eccentrically formed cam 48 ″ on the flange 33, which extends parallel to the abscissa axis X and thus perpendicular to the contact carrier arm 32b ¹ .

The contact carrier arm 32b differs from the »contact ^{carrier arm 32b 1} by the flag 37 formed over the web 43 and the T-shaped slot 35 designed as an outlet slope 50; all other essential functional areas 34 are included. the contact carrier arms 32b, 32b ¹ pointing diametrically away from one another are identical. The flag 37 is directed perpendicular to the ordinate axis Y, that is, it runs parallel to the broad side 32a ^{1 of} the flange 32. A longitudinal edge 35b of the slot 35 adjacent to the sub-area 49 touches a large area 31b of the bobbin, which is used for the turns of the bobbin 31 to be applied Winding wire is given a perfect and full support, ie by this measure a relative movement is reduced to a minimum from the outset due to the ordered directional relationships of individual turns to one another when a current flows. The course and the dimensions of the undercut 45 can also be seen from this figure.

As can be seen in FIG. 3, the run-out bevel 50 of the T-shaped slot 35 opens in the functional area 34 of the contact carrier arm 32b in a recess 34a pointing towards the pocket 39. The recess 34a forms a directional guide for the beginning of the winding wire to be placed on the contact carrier and at the same time serves as mechanical protection for the winding wire, which is only insulated with enamel. The contact carrier arm 32b, apart from the run-out bevel 50, also has an equally dimensioned recess 3 ^ a 'and a conical shaped pin 47'. As can also be seen, a flank 34b, 34b ¹ is tangent to the recess 34a, 34a ¹ in an imaginary

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BATH ORIGINAL

Extension of the conical shaped pin 47, 47 ', ie that the beginning of the winding wire to be temporarily fixed is not significantly deflected from its directed path before the beginning and after the end of the winding process. A flank 34b ^{11 of} the recess 34a ¹ lies above an edge 32a ^{11 of} the narrow side 32a of the flange 32, v / o through which the winding wire end is inevitably guided to the contact carrier in a protected manner after leaving the winding space 31a. The contact carrier arm 32b, 32b ¹ furthermore has in the area of the recess A3 an opening 43a penetrating the same in the direction of the angle of attack S and at the free end 36 of the same, humps 40a belonging to the subarea 40. The opening 43a and hump 40a fulfill different tasks, which consist in the fact that the opening 43a is used to receive a clamping screw, not shown in the drawing, for the supply and discharge, while the humps 40a fix the contact carrier and when the to- or Discharge brakes occurring transverse forces and thus effectively prevents the same from being held out of the pocket 39.

809845/0012

7H./P 4! 1 tr.70 '.00OZiT)

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Claims (15)

ί? Γ, OVV; -i, BüVri'it ο. C ir ■ AK Πί-NGEStI.! SCHAR \ Mp.no. 559/77 Mannheim, April 15, 1977 ZFE / P4-Kk / Mr. ι claims © Bobbin, whose winding receiving the winding ! body is limited by flanges, with one of the Flanges a flange opening designed as an inlet and outlet is provided, characterized in that the flange opening is designed as a shaped opening (35) having undercuts (45) and runs tangentially to the outer surface (31d) of the winding body (31) receiving the winding, and that the Undercuts for Fixierxmg an ISO slide (44) are suitable. 2. coil formers with a preferably rectangular cross-section, whose winding takes up, with rounded corners 809845/001? _ _____ H ¹ Z ⁰⁸ A trained winding body is limited by flanges, with one of the flanges as an inlet and outlet formed paddling breakthrough is provided, characterized in that the flange breakthrough as undercuts (45) having shaped opening (35) is formed and is tangential to a winding on I taking large outer surface (31b) of the winding body (31) S runs, wherein the shaped opening opens into a contact carrier bracket (32b) crimped on the first flange (32) outside of a winding space (31a) formed by the winding body and the flanges (32, 33) , and that the undercuts are suitable as a means for fixing an ISO 'slide (44). 3. bobbin according to claim 1 and 2, characterized in that ¹ that the shaped opening is designed as a T-shaped slot (35) running parallel to the coil body axis (Z) the base of which is an outlet slope (50) rising from a transverse edge (35a) in the first flange (32) and in the area of an end face (32d) of the coil body (30) in a recess (34a) of the first Flange (32) molded contact carrier bracket.α (32b) comes in. 4. bobbin according to one or more of the preceding claims, characterized in that the recess (34a) is in direct connection with one of the contact carrier arms (32b) receiving portion of a pocket (39) and j 809845/0012 ΖΓΕ / Ρ * F 1 (OViifiOOO / KE! serves as a directional guide for the vetch! wire start. 5. Spool according to one or more of the preceding claims, characterized in that at least two of an abscissa axis (X) ^{pointing away contact support arms (32b, 32b 1} ) are formed on the first flange, such that their functional areas (34) point diametrically away from each other, and that the pocket (39) of each contact carrier arm extends perpendicular to the coil body axis (Z). 6. bobbin according to one of the preceding claims, characterized in that the pockets (39) formations and Undercuts to fix a contact carrier in its essential functional areas for positive locking Have fixation. 7. bobbin according to one of the preceding claims, characterized in that the pocket (39) in its course of The shape of a gutter bracket. 8. bobbin according to one or more of the preceding claims, characterized in that at least a portion of the pocket (39) is at a defined angle of attack (S) runs to the first flange (32), the partial area surface (40) of which extends through a bobbin opening ( ι (41) tangential web (42) is limited. _ 4 -809845/0012 ZFl / P-Jf 1 (C7'i'iOO'J / i: l 1 9. Bobbin according to one or more of the previous ones Claims, characterized in that a flag (37) to at least one contact carrier arm (352b) Recording of the coil data is formed. 10. Spool according to one or more of the preceding claims, characterized in that the flag (37) arranged at a defined setting angle (L) to the coil body axis (Z) and by means of webs (42, 42 ') stabilizes i3t. 11. bobbin according to one of the preceding claims, characterized in that the part forming the surface area (40) at least one recess (43) and one! the same perpendicular to the defined angle of attack (S); penetrating opening (43a) for receiving drafts having. 12. Spool according to one of the preceding claims, characterized characterized in that the flag (37) and the surface (40) next to one another in the form of a staircase at the same height but are arranged at different distances from the coil body axis (Z). 13. Bobbin according to one or more of the preceding claims, characterized in that the contact j support arms (32b, 32b ¹ ) parallel to the small winding surface (31c) in the direction of an ordinate axis (Y) ver - 5 - 809845/0012 zrr / p '. ι ι (n7htioofi / Kr ( to run. 14. Bobbins according to one or more of the previous ones Claims, characterized in that on a second the
/ Flange (33) delimiting the winding space (31a), projections (48, 48 ', 48 ^ft ) are provided for positively locking the bobbin. 15. Bobbins according to one or more of the previous ones Claims, characterized in that the coil body ι (30) is a one-piece plastic injection-molded or molded part j is. 809845/0012