DE7342490U - Magnetic core composed of sheet metal - Google Patents

Description

I ·

.! .. ι. ■■■ ·.: ■ if.

Licentia Patent-Verwaltungs-Gwbll

6 Frankfurt / Main, Theodor-Stern-Kai 1

SGN-73/2 Frankfürt / Main, 11.10.73 Wei / hs

Magnetic core composed of sheet metal

The innovation relates to a magnetic core composed of sheet metal for multi-phase converters, in particular 4-leg converter with a diagonal dividing line in the * 'legs carrying the coils.

In the case of jacket transformers, it is known to use two-part core sheets for the production of the magnetic cores, which core sheets can be plugged together during assembly to form a jacket transformer core. The dividing line of the

SGN-73/2 - 2 -

longitudinally divided middle leg diagonally through the middle leg plate. In addition, appropriate approaches and recesses can be provided that the two core parts when Snap into one another. Furthermore, the core sheet silc se built so that they are in their "sweeter dimensions." are identical, so that only a single sheet metal shape is required (see DT-PS 1 23Q 90I, 1 638 9 ^ 6, 1 638 965).

The task of the present innovation is, in the case of a magnetic core composed of sheet metal, for multiphase converters to make the arrangement so that on the one hand you get by with as few sheet metal forms as possible, on the other hand but the coils are assembled in the same way as in the known devices when assembling the core parts can «To achieve this, according to the innovation, there are two H-shaped core parts at each end, each with a U-shaped one Core part and plugged together at the other ends. Both the primary coils and the Secondary coils with their bobbins each on the Longitudinally divided core legs are placed. Appropriately, the legs of the U-shaped core part are outside and the corresponding legs of the H-shaped core part beveled on the inside, while the other legs of the H-shaped one Core part are beveled in the same direction. This measure makes it possible to use only two for a 4-leg converter use identical H-shaped core parts and two identical U-shaped core parts. The nesting of different Sheet metal shapes, as is the case with the cores for other 4-leg converters is known, is completely omitted here. There are always only the same sheet metal shapes in one package. The beveled Legs are also provided in a known manner with recesses and approaches that when plugged together the parts snap into place. As a result, a bracket and a connection are provided during assembly simply by plugging them together.

Reference is made to the drawing in which

734241811 s. H.

SGN-73/2 - 3 -

the sectional view of a core for a k -shank »converter is shown as an exemplary embodiment.

As can be seen from the drawing, the core consists of two H-shaped core sheet metal cuts and two U-shaped core sheet metal cutters. The two H-shaped and U-shaped core sheet metal sections are identical to one another, only the sheets are each rotated by 180 ° in relation to one another in the plane of the drawing. The legs 5 and 6 of the H-shaped core 1 and the legs 7 and 8 of the H-shaped core 2 are beveled on the inside. The legs 9 and 10 of the U-shaped core 3 and the legs 11 and 12 of the U-shaped core 4 are beveled on the outside and can be plugged together with the legs 5 and 6 of the core part 1 and 7 and 8 of the core part 2. The legs 13 and 14 of the core part 1 and the legs 15 and of the core part 2 are beveled in the same direction and, as can be seen from the illustration, the core parts 1 and 2 can be inserted into one another with these legs. The diagonal division of the legs gives a large contact surface and the windings indicated by 17 are held by these legs. At the ends of some of the legs, lugs 18 are provided which snap into corresponding recesses 19 on the corresponding legs. As a result, an automatic connection between the individual core parts is achieved without the need for additional connecting elements. For the production of such a transducer core β only two sheet metal cuts are necessary, so that it is easy to manufacture.

Claims (3)

Licentia Patent-Verwaltungs-GmbH 6 Frankfurt / Main, Theodor-Stern-Kai 1 SGN-73/2 Frankfurt / Main, II.IO.1973 - Wei / hs protection claims 1. Magnetic core composed of sheet metal for multiphase converters, in particular 4-leg Waitdler, with a diagonal dividing line in the legs carrying the coils, characterized in that two H-shaped core parts (1,2) at: one end each with yes one U-shaped core part (3 »4)
and snap together at the other ends. 2. Magnetic core according to claim 1, characterized in that
the legs (9,10; 11,12) of the U-shaped core parts (3,4) on the outside and the corresponding legs (5 »6; 7j8) of the H-shaped core parts (1,2) are beveled on the inside, while the other legs of the H-shaped core parts are beveled in the same direction. 3. Magnet system according to claim 1 and 2, characterized in that the beveled legs of the core parts (1,2,3,4) in a manner known per se with recesses (l8) and
Lugs (19) are stranded when they are put together
click into place. , ι. "