DE437070C - DC transformer - Google Patents

Description

GERMAN EMPIRE

ISSUED NOVEMBER 13, 1926

REICH PATENT OFFICE

PATENT LETTERING

- M 437070 CLASS 21 g GROUP 15

(R 60999 VlIIJ2ig)

Gyrorector G. m. B. H. in Berlin.

DC transformer. Patented in the German Empire on April 29, 1924.

The subject of the invention is a device that provides changing contacts, on the one hand the

the purpose of which is to provide some primary flow of the gear to be transformed

mary direct current is reversed into direct current from a j current continued, so that one this

to transform other tension. The I for excitation of an alternating current transformer

The intended purpose is by using an electroma- jor ₃ but also on the other hand

magnetically excited and self-regulating corresponding and in a particular

Achieved pendulum device which, by making inversions of the rhythm

in the secondary winding of the transformer caused current in such a way that the secondary alternating current is converted back into direct current.

DC transformers, in which synchronously oscillating, electromagnetically excited Pendulum devices in the primary and secondary circuits and an AC transformer are already known. before

ίο these, however, the invention is characterized by that here two mutually controlling and mutually interacting pendulums are provided are. Namely, it should be noted that when the excitation of an AC transformer comes about through alternating contacts which cause continued inversions of a direct current, as well as tearing off the one contact and the closing of the other contact rectified current surges generate in the secondary transformer winding, while on the other hand again the secondary Electric surges caused by closing and interrupting one and the same Contact arise, must be directed in the opposite direction. Since, however, if you want to avoid unnecessary power losses, it is very important it is important that the breaking off of the contact as well as the closing is exploited, from this results again the necessity of a definite succession of Contact processes. Such a sequence would e.g. B. when you look at every pendulum distinguishes a left and a right contact, expressed by the following period be:

1. Closing the left contact of the first pendulum,

2. Tearing off the left contact of the second pendulum,

3. Closing the right contact of the second pendulum,

4. Tearing off the left contact of the first pendulum,

5. Closing the right contact of the first pendulum,

6. Tearing off the right contact of the second pendulum,

7. Closing the left contact of the second pendulum,

8. Breaking off the right contact of the first pendulum.

The purpose of the following description is to show that such an eight-stroke is easy to reach with the help of two mutually controlling magnetic pendulums, as provided in the present invention.

An embodiment of the invention is shown in the drawing. The magnetic bars δ and c are suspended in a pendulum manner on the base plate and the horseshoe-shaped electromagnets d and e are arranged below them in such a way that the lower pole ends of the magnets b and c can oscillate back and forth between their pole ends. The contact pins / and § · move with the pendulum b , the contact pins h, i and k with the pendulum. The contact pin / are the contact pins I and m, the contact pin g the contact pins ti and -o, the contact pin h the contact pins ρ and q, the contact pin i the contact pins r and s, the contact pin k the contact pins t and ti . Above the pendulums b and c , an alternating current transformer with the primary winding ν and with the secondary winding w is shown, to the left of the pendulum 6 the power source λ: is indicated schematically. The positive wire of the power source λ: leads to the contact pin / of the pendulum b and the contact pin i of the pendulum c, the negative wire to the contact pin £ · of the pendulum b and to the center of the winding of the electromagnet d, while again the free ends of this winding are connected to the contact pins r and s. In addition, the contact pins I and η on the one hand, m and 0 on the other hand with the free ends of the winding of the electromagnet ^ and the primary transformer winding ν and also the contact pins ρ and t on the one hand, q and α on the other hand with the free ends of the secondary transformer winding are electrically connected w.

The mode of operation of the device just described is as follows: As long as both pendulums are in the exact center between the contact pins that limit their oscillation angle, they are magnetodynamically in unstable equilibrium. A small shock, however, would be enough to trigger an automatically continuing pendulum process. In this case one would have to distinguish between two different processes. Once the process of mutual. Pendulum control, secondly, the process of alternating current migrations taking place in the transformer with the end result that the transformed alternating current must always be supplied to the terminal poles h and k in the form of rectified current surges.

As far as the mutual pendulum control is concerned, this results from the following consideration: If, under the effect of any kind of shock, the pendulum c executes such a vibration that it presses the contact pin / against the contact pin r , then the one emanating from the power source χ becomes Circuit closed in the sense of xirdx andi thereby

the magnetic pendulum b is forced, depending on its polarity, to swing out to one side or the other, be it e.g. B. set the case to swing open in the sense that the Kontaktbolzen./ and g are pressed against the contact pins / undo. The consequence must then be that one of the current source λ; generated second current via xfleogx also excite the electromagnet e and with the corresponding

to polarity of the pendulum magnet c will force it to carry out a retrograde oscillation after the contact pin s. So, one after the other, the following circuits, which alternately set the pendulums b and c in oscillation, must be closed:

1. xisdx,

2. xfmengx,

3. xirdx,

^{4- x} -H- ^e - ° -g- ^x '

5. xisdx,

which would start the game all over again. In other words, that would mean that between the closing and the breaking of a contact, the one Pendulum comes about, always tearing off and closing with the other pendulum must lie.

Having said this, the directions of the current impulses that must follow one another in the transformer windings ν and w can easily be determined. If you start z. B. with the contact closure through which the current path xfmengx specified under 2. is made accessible, the primary current impulse traveling through the winding ν must cover the path xfmvngx, i.e. have the direction of the arrow y , which again has the opposite current direction in the secondary effect would mean. The secondary current impulse running from one end pole to the other would, since h and k are connected to one another via the connected direct current consumer , thus run via hqwtk.

If, however, a contact closure of the pendulum & in the secondary winding w triggers a current impulse in the direction of the arrow line 2, the subsequent interruption of contact of the pendulum b must generate a secondary impulse which has the opposite direction y . The next secondary current surge would therefore have to go through hpw-ii-k .

If one continues this consideration, one obtains the following period of the secondary Stream hikes:

ι. hqwtk (due to contact closure at f-nt, ng),

2. hpwuk (- - contact break at f-ni, ng),

3. hpwuk (- - contact closure at fl, go),

4. hqwtk {- - interruption of contact with fl, go).

It follows from this that the transformed current at poles h and k can be drawn off in the form of rectified current surges, i.e. direct current.

As the illustration given shows, the invention just described offers two advantages. On the one hand, the two secondary current surges that arise when the contacts of the first pendulum b are closed and interrupted are used in the same way, and secondly, the secondary circuit on the second pendulum must always be closed during these current surges, so that losses caused by sparks the contact pins h and k could arise are excluded.

Claims (1)

Patent claim: Direct current transformer, consisting of an alternating current transformer and electromagnetically driven pole reversers. For primary and secondary circuit, characterized in that the two magnetic pendulums (ö and C) control each other alternately with the help of special contact groups in such a way that the erne pendulum is caused by every oscillation it executes , always brings about a contact closure, through which the polarity of the electromagnet that sets the other pendulum in motion is reversed. For this purpose ι sheet of drawings.