SU502403A1 - Contact system - Google Patents

Description

(54) CONTACT SYSTEM

The invention relates to a contact system, in particular for a voltage regulator applied in automotive generators. Contact systems for voltage regulators are known, having two fixed contacts and one moving contact, mounted on the electromagnet cortex in such a way that the moving contact is between the fixed contacts. The aim of the invention is to simplify the device, improving the manufacturability and quality of self-cleaning. This goal is achieved by the fact that in the proposed system a movable contact mounted on the electromagnet core and located between two fixed contacts contains two contacts fixed separately from one another on two elastic plates located at a predetermined distance from both sides of the core and one end rigidly fixed on it with the help of remote shields. Thus, each contact of the movable unit can move independently when in contact with the corresponding fixed contact. This movement, limited by the bark, provides the necessary slip and self-cleaning. FIG. 1 shows a side contact system; in fig. 2 - the same plan view; in fig. 3-5 - system options. The contact system contains measles 1 and two elastic plates 2 and 3 located parallel on both sides of the core. On one end of the plates 2 and 3, pins 4 and 5 are rigidly fixed, the other ends of plates 2 and 3 are rigidly fixed on the bark 1 via spacers with a rivet 6. The contact block formed in this way is placed between the fixed contacts 7 and 8. In case of contact, for example In the upper position of the movable contact 4 with the fixed contact 7, the bark 1 continues its movement in the same direction, while the plate 2 is pressed against the bark. During this movement, sliding and rolling of the moving contact 4 with respect to the fixed contact 7 occurs. As a result, the initial contact point is moved. In this way, the contact sticking is eliminated and the contacts are self-cleaned. In the lower position, the system works similarly.

The contacts are self-cleaned in the described contact system with greater force than the elastic force of the plates, since the latter abut the measles, with the result that the electromagnetic force moving the measles moves to the corresponding contact pair.

In the contact systems shown in FIG. 3-5, elastic plates 2 and 3 are not parallel to bark 1. They are bent so that the axes of the contact pairs 4, 7 and 5, 8 form an angle to the direction of movement of the core. This gives you the opportunity to increase the slip contacts.

Subject invention

A contact system, for example, for a voltage regulator, containing two stationary contacts and a movable contact element interposed between them, fixed at one end on the electromagnet cortex, characterized in that, in order to simplify the design and increase reliability

work, the movable element is made in the form of two elastic contact holders with contacts arranged symmetrically on both sides of the core and fixed on it with a gap.

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