SU390593A1 - SWITCH - Google Patents

Description

one

Known switches include a housing, a terminal block, a slider with brushes, and an axis.

In order to simplify the manufacture of "operating conditions, as well as increase the service life in the proposed switch, the terminal block is made in the form of sections, each of which is arranged around the circumference of one row of conductive uncoupled wire terminals, shorted from the end by conductive half rings, and parallel to another current collector hardened wire terminals so that both rows of wire terminals are closed by a pair of wire brushes sliding along the terminals orienting the slider with the brush holders performing contacts for prison.

FIG. 1 shows the described switch with a perspective view; in fig. 2 - the same section; in fig. 3 - one section of a contact block, a section; in fig. 4 - slider with brush holders, in two projections.

The switch consists of case 1, on which three contact pads 2 of drum type are attached. Collected from the three sections of the contact pads pressed to the body with a cover 3 with the bearing. Movement to the switch is externally transmitted through a pair of

2

conical wheels 4, from which movement is transmitted to axis 5. At the other end of the axis, slider 6 is fixed with holders 7 of brushes 8. The contact block has two rows of wire contacts 9 and two half-rings 10. On the opposite side of the body there is a block 11. From above pad // is closed by a cover 12, and terminals 13 of the external circuit are inserted inside the pad. Wires M and 15 current collector and current lead, respectively, are connected to the terminals.

To protect against mechanical surfaces, the switch is closed by a cup 16, which is pressed against the body by a spring 17. The switch operates automatically, receiving movement from a synchronous motor.

The holders 7 of the brushes 8, when fastened to the slider 6, can be rotated at any angle around the axis and thereby create the desired pressure of the brushes on the contacts, and then in this position, press the nut holder. One row of contacts 9 from the end is shorted by soldering to two half rings 10, to which voltage is supplied via wire 15, the other row of contacts on the block is connected by wires 14 to sensors. Each brush holder has two brushes which, when the engine rotates, slides the corresponding kJOBs along the respective rows (at the contacts short-circuited by semicircles under voltage and contacts connected to the sensor). From brushes that slide along a short-circuited row of contacts, current flows through the holder to the next brush, which slides over the row of contacts connected to the sensors.

When the engine rotates, the contacts, which touch the brushes, are simultaneously closed in all three pads. Such an implementation of the switch makes it possible to supply different voltages if necessary. The switch can operate simultaneously with two, three or more different voltages, using simultaneously the contacts of all three rows connected to the consumer.

Subject invention

A switch comprising a housing, a terminal block, a slider with brushes and an axis, characterized in that, in order to simplify production and operating conditions, as well as increase the service life, the contact block is made in the form of sections, each of which has one p around d current-carrying uncoupled wire terminals, shorted from the end of the current-carrying semirings, and parallel to another series of current-collecting hardened wire terminals so that both the thirds of the wire terminals

Closed by a pair of wire brushes that slide along the terminals, while rotating: Izh1ka with brush holders, which switches contacts.

Fig 1