DE500618C - Assembled automatic regulator and switch - Google Patents

Description

GERMAN EMPIRE

ISSUED ON June 27, 1930

REICH PATENT OFFICE

PATENT LETTERING

JVi 500618 CLASS 21c GROUP

B 135517 Vlllb \ 2ic * Ί 'ag of the announcement of the grant of the patent: June 5

Robert Bosch Akt-Ges. in Stuttgart

Assembled automatic regulator and switch

Patented in the German Empire on January 22, 1928

For the assembly of automatic controllers and switches for electrical systems Vehicles one has already proposed a U-shaped magnet frame, on the web of the S magnetic core is attached vertically. In order to achieve a clear overview with the narrow design achieved in this way To connect the structure of the controller switch and its various contacts is, according to the invention, on each flange of the U-frame attached at least one anchor extending approximately to the center of the web and one of this influenced contact spring on the outside of the U-frame in a known manner vertically arranged to the bridge. The clear arrangement of the contacts achieved in this way is special advantageous if the controller or the switch or both are equipped with a plurality of anchors are.

In the drawing, two Ausführungsbeiao games of the invention are illustrated.

Fig. Ι shows a longitudinal section through a regulator switch with two separate magnetic cores,

Fig. 2 the view of the same from above,
Fig. 3 the circuit diagram for

Fig. 4 is a longitudinal section through a regulator switch with a common magnetic core, Fig. 5 the view of the same from above and

Fig. 6 the circuit diagram for it.
In the example according to Fig. 1 to 3, two magnetic cores ι and 2 are attached to the web of a U-shaped iron frame 3, on each of whose two flanges two angled anchors 4, 5, 6 and 7 are suspended by leaf springs 8. The two cores 1, 2 are divided according to their anchors by a longitudinal slot 9 each. The core 1 with the anchors 4 and 5 belongs to the automatic controller and the core 2 with the anchors 6 and 7 to the automatic switch. A voltage coil 10 is wound around the core 1 and a voltage coil 11 and a current coil 12 are wound around the core 2. Each armature can influence a contact spring which is fastened in an isolated manner on the frame 3, of which 13 and 14 can be seen in FIG. These two each have a contact 15 or 16, which can work together with insulated mating contacts 17, 18 and 19, respectively. The two contact springs (not shown) each have a contact 20 and 21, which can work together with insulated counter-contacts 22, 23 and 24, respectively.

The method of operation is as follows: The three-brush machine D has two excitation windings E and F connected in parallel to the third brush. In series with these are resistors R and W, which in the rest position of the two armatures 4, 5 through the contact pairs 15, 17 and 20, 22 are short-circuited. As soon as the alternator D provides enough voltage, the core of the voltage coil 11 attracts the armature 6, which closes the switch contact pair 16, 19. As a result, the battery B is connected to the main brushes of the alternator via the current coil 12. When the alternator voltage increases to a certain extent, the armature 7 is attracted to such an extent that it closes the pair of contacts 21, 24. This causes the voltage coil 10 of the regulator

connected to the main brushes of the alternator, which can now be used. At a certain voltage of the alternator, one regulator armature 4 is now tightened so far that it can influence the contact spring 13. This first opens the pair of contacts 15, 17, whereby the resistor R in the circuit of the excitation winding E is switched on, and then closes the pair of contacts 15, 18, whereby

the excitation winding E is short-circuited. If the alternator voltage increases further, the second regulator armature 5 is tightened. This first opens the pair of contacts 20, 22, whereby the resistor W in the circuit of the field winding F is switched on, and then closes the pair of contacts 20, 23, whereby the field winding F is short-circuited. Both regulators work in a known manner in the manner of so-called dither regulators.

The example according to FIGS. 4 to 6 is simplified in several respects compared to the first. The two magnetic cores 1 and 2 according to Fig. 1 and 2 are here put together in a single core 25 around which the two coils 11 and 12 are wound. The second switch armature has been omitted and the only switch armature 26 is therefore widened. Corresponding to the three anchors 4, 5 and 26, the core 25 is divided by two slots 27 and 28 which are perpendicular to one another. The alternator L is designed as a two-brush machine. The mode of operation of the arrangement according to the second example is similar to that of the first, only the controller can easily come into operation when the alternator voltage is appropriate.
As a result of the subdivision of the field winding into several parallel field windings and the corresponding increase in the number of controller contacts, the currents at the controller contacts are relatively low, and the sparks that occur when there is an interruption cannot damage the controller contacts. The subdivision of the magnetic cores according to the associated armatures has the advantage that the magnetic circuits associated with each armature cannot influence one another.

Claims (3)

Patent claims: 1. Assembled automatic regulator and switches, especially for electrical systems on vehicles, with a U-shaped Magnetic frame, on the web of which at least one magnetic core is attached vertically, and on the flanges of which the above Magnetic core hanging regulator and switch armatures are attached, characterized that on each flange at least one extending approximately to the center of the web Anchor attached and a contact spring influenced by this on the outside of the U-frame is arranged in a manner known per se perpendicular to the web. 2. Controller and switch according to claim 1, characterized in that at least on a flange of the magnet frame attached several anchors arranged next to one another are. 3. controller and switch according to claim i, characterized in that magnetic cores to which several armatures are assigned, these are split lengthways accordingly. 1 sheet of drawings