SU38817A1 - Corresponding training device to demonstrate the occurrence of electric current in the winding of the core - Google Patents

Description

Known training devices that serve to clarify the occurrence of electric current in the core winding are known. In the proposed preliminary training device to demonstrate the occurrence of electric current in the core winding, the instrument boxes moved in the grooves are simultaneously in opposite directions, two plates with knitted strips ; These plates are located under the ear with an image on it of a core with a winding having a number of narrow transverse cuts through which the shading of the said plates, which, when moved, create the impression of current flow in the winding of the core.

In FIG. 1 shows a view of the training device from above; FIG. 2 is the same in cross section; fkg 3 and 4-plate with-o shtrihovkoy.

The training device consists of plane 1, which shows an iron ring core 2 of an electric current generator with a wire winding 3, and the winding in the parts shown by shading is made either transparent or cut out so that the shaded surfaces of plates 6 and 7 can be seen , found (313)

under the plane 1 and able to move in the grooves 8 and 9, and the plates are provided with shaded (or otherwise marked) surfaces visible through the winding 3. The plate 6 is limited to the ABCG figure, and the 7 plate by the MLSF pattern. In FIG. 3 and 4 these plates are also depicted

individually, in a reduced form.

The indicated plates are supplied except

In addition, the grooves of the Kli are protrusions 13, 14, 12 and 15 and slots 10 and 11, the purpose of which is explained below.

Plate 4 depicts a magnet with poles N and S and mounted on a rod 5 equipped with a lever 18 with ends 16 and 17. This plate can be rotated with its rod 5 (as with an axis) and lever 18; when the plate 4 rotates, it can hit the ends 16 and 17 of the lever 18 into the grooves or protrusions 13, 14, 12 and 15, made on the plates 6 and 7, and therefore move the plates itself in the slots 8 and 9. These grooves or projections made in such a way that they are caught by the ends 16 and 17 of the lever 18 only when the images of the magnetic poles N and S pass near the turns of the winding a, b, ",

g, d, g, 3, and, k; at another time

when the poles pass near those places of the iron core 2 that are not provided with windings, the grooves or protrusions are not caught by the ends of the lever.

The combination of a magnet and an iron core with a winding is a model of a magnetic electric current source.

Rotation (movement) of the magnetic poles near the winding, according to the laws of electrical engineering, excites (induces) c. The current flow is obvious and is shown in this manual as follows. While the poles N and S of magnet 4 rotate the latter, for example clockwise, pass near the winding, the lever 18 with its ends 16 and 17 falls into the grooves or protrusions 13, 14, 12 and 15 so that the end 17 enters the groove or protrusion 14 of the plate 7 and moves the sheet up (from the observer), and the end 16 falls into the groove or protrusion 12 of the plate 6 and moves this plate down (from the observer). The movement of the plate 7 will be visible (in its shaded surface) through the winding parts e, a, b, a, d, d, l, the movement of the same plate 6 will be visible through the winding parts w, h, and K. The motion of the plates, visible in this way through the winding, gives the student an idea of the movement of electric current. Upon further movement (rotation) of the magnet, when its poles move away from the winding and move near the iron core 2 devoid of winding, the ends 16 and 17 of the lever 18 exit from their grooves or projections 14 and 12, thus terminating the movement of the plates 6 and 7 The immobility of the scarred portions of the plates visible through the winding gives the student the impression that at this time the current in the winding is not induced. When,

when the magnet continues to rotate, its.; | poles N and S begin to pass the forge near the winding, but with reverse polarity, then the end 17 of the lever 18 falls into the groove or the protrusion 13 of the plate 7 and moves it in opposite direction (from the observer), as well as the end 16, falling into the groove or the protrusion 15 of the plate 6, it moves this last one also in the reverse direction; 1 the event (upward from the observer). Movement in the reverse directions of the plates 6 and 7, also visible (in their shaded surfaces) through the winding, gives the student an impression of the reverse movement of the electric current. Finally, the further rotation of the magnet, when its N and S poles pass near the part of the core 2 devoid of winding, again depicts the absence of current induction.

When the magnet rotates in the opposite direction (counterclockwise), all the phenomena also occur in the opposite direction of the electric current.

The subject matter of the invention.

An advanced training device for demonstrating the occurrence of an electric current in the winding of the core, characterized by the use of the instrument boxes moved in the grooves 8-9 simultaneously to the opposite sides of the plates 6, 7 (Fig. 1 and 2), with shaded bands (Fig. 3 and 4) and located under the lid 1 with the image on it of a core 2 with a winding 3 having transverse slots through which the shading of the said plates is visible, for which the lever 18 for the projections or grooves in them 12-15 mounted on the rod 5, is used L guide integrally with the rotatable plate 4, showing a magnet.

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