JPS5828818B2 - rotor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotor, and aims to facilitate manufacture and extend the life of the rotor.

The basic principle of this invention is shown in FIG.

In the figure, E is a silicon steel plate for the iron core, and P is a dielectric.

That is, the dielectric P is held between silicon steel plates.

A capacitor using the silicon steel plate E as an electrode is then formed.

A loaf iron core is constructed by stacking dozens of these.

FIGS. 2 and 3 are explanatory diagrams of an assembly procedure of an embodiment of the present invention.

First, as shown in FIG. 2, dielectrics P are placed between six silicon steel plates E, and electrodes 1 to
Derive 3.

As a result, a capacitor c1 (not shown) is installed between electrodes 1 and 2.
, capacitor c2 (not shown) between electrodes 2 and 3, electrode 3
, 1, a capacitor C3 (not shown) is formed between them.

In addition, these electrodes 1 to 3 are connected to a commutator plate S shown in FIG.
The commutator segments S1 and 83 are connected to each other.

Between the commutator pieces S1 to S3, there are slits t1 to t1, respectively.
t3 is formed.

In this way, the rotor shown in FIG. 4 is constructed.

In the figure, O is the rotating shaft and Q is the winding coil.

An equivalent circuit diagram of this rotor is shown in FIG.

That is, a capacitor c1 is connected in parallel to the coil L1, and capacitors C2 and C2 are connected to the coils L2, L3, respectively.
C3 is connected in parallel.

FIG. 6 is an explanatory diagram of the operation.

The rotor rotates in the direction of the arrow shown in the figure, and the brush B1. When B2 crosses the slits t1 to t3, the brushes B1. Although sparks tend to occur between B2 and commutator segments S1 to 83, they are absorbed by the capacitors 01 to C3, so the generation of sparks is suppressed.

Therefore, the rotor has a long life. In this way, according to this embodiment, since the generation of sparks is suppressed, the life of the rotor is extended, and the occurrence of radio wave interference is prevented.

Furthermore, since there is no need to consider dynamic balance, the capacitor installation becomes easier.

FIG. 7 and FIG. 8 are main part configuration diagrams of other embodiments, respectively.

That is, three dielectrics P, -P3 are arranged on one silicon steel plate E1, and 1. Electrode 11 facing these ~■
There are 3.

A rotor is obtained by stacking these.

This embodiment also has the same effects as the previous embodiment.

As described above, since the rotor of the present invention has a spark absorbing capacitor formed by inserting a dielectric between the magnetic plates of the iron core, it has a long life and can prevent the occurrence of radio wave interference.

Further, unlike in the past, there is no need to attach a capacitor in consideration of dynamic balance, which facilitates manufacturing.

[Brief explanation of drawings]

Fig. 1 is a diagram of the basic principle of this invention, Figs. 2 and 3 are explanatory diagrams of the assembly procedure of a rotor according to an embodiment of this invention, Fig. 4 is a completed side view, and Fig. 5 is Fig. 4. Equivalent circuit diagram of 6th
This figure is an explanatory diagram of the operation of FIG. 4, and FIGS. 7 and 8 are main part configuration diagrams of other embodiments, respectively. E...Silicon steel plate, ...Capacitor. P...Dielectric material, 01~C3°°.

Claims (1)

[Claims] 1. A rotor characterized in that a dielectric material is inserted between magnetic plates of an iron core to form a spark absorption capacitor.