SU1332407A1 - Vacuum switch - Google Patents

Abstract

The invention relates to electrical engineering, in particular to vacuum switches. The purpose of the invention is to increase the resource, simplify the design, reduce the size and weight. The device is stationary, the electrodes 3 of the arc-suppressing chambers 2 are installed in the housing 5, and the movable electrodes 6 are connected to the electromagnetic drive 1 through the hinges 9, which are mounted in the rotary lever 8. In the lever 8, the grooves are radially perpendicular to the axis of the hinge 9 installed springs. The springs at one end abut against the outer surface of the hinge 9, and the other end at the end of the grooves about the hinge 9 is set so that between the outer surface of the hinge 9 and the cylindrical bore there is a gap equal to 5-15% of the outer diameter of the hinge 9. When power is applied to the coils The drive 1 lever 8 rotates, the movable electrode 6 moves up and closes with the stationary electrode 3 under the action of atmospheric pressure. 4 il. (L fil1

Description

 13

The invention relates to the field of electrical engineering, specifically to vacuum switches.

The purpose of the invention is to increase the resource, simplify the design, reduce the size and weight.

FIG. 1 shows a vacuum switch, side view; in fig. 2 — node I in FIG. one; in fig. 3 shows sections A-A in FIG. 2 (swivel joint with coil springs in the slots of the rotating lever, top view); in fig. A - section A-A in FIG. 2 (swivel with flat springs in the slots of the pivot arm, top view).

The vacuum switch (Fig. 1) contains an electromagnetic actuator 1 and vacuum arcing chambers 2,

The stationary electrodes 3 of which are connected to the turning torque of the driver tires 4 to cause rotation of the movable electrode 6, the switch 5, and the movable electrodes 6 of the vacuum arcing chambers 2 are connected to the output tires 7

as well as the displacement of the hinge 9. The hinge 9 due to the gap formed between the pivoting rachag 8 and the hinge 9, with the pivoting lever 8, the electromagnet 5 moves by compressing the springs 17, expanding the drive 1 through the hinges 9 (Fig. 2). placed in the grooves 16 of the pivot arm 8. The force opposing the spring 17, returns the hinge 9 to its original position when the switch is turned off, ensuring the coaxiality of the movable 6 and the stationary 3 electrons at the end of the movable electrode 6 is a spring 10 for adjusting the contact pressure, which is fixed nuts 11 and 12. Between the pivot arm 8 and the bracket 13, on which

childbirth as when they are closed, and when opened.

40

Electromagnetic actuator 1 is fixed, the stop 14 is installed with a return spring 15.

In the pivot arm 8 perpendicular to the axis of the hinge 9 radially located switching wear-resistant grooves 16, in which are mounted with bone and a simplified design, helical springs 17 (Fig. 2 and 3). At one end, the coil springs 17 abut against the outer surface 18 of the hinge 9, and the other end at the ends 19 of the grooves 16. The hinges 9 are installed in the swiveling rachag so that between the outer surface 18 of each of the hinges 9 and the cylindrical holes 20 in the swivel lever 8, which are installed hinges 9, formed a gap (Fig. 3), equal to 5-15% of the diameter of the outer surface 18 of the hinge 9.

The grooves 16 are closed by plates 21 and 22, attached to the pivot arm 8 50 with screws 23. Between the movable lever 8 and the vacuum interrupter chamber 2, the output busbar 7 with the fastener 24 is installed.

For devices operating in the enlarged radial grooves, excellent operating modes and having a shaft that is perpendicular to the axis, 55 are reduced, the size of the swiveling recess in which the springs 8 are installed, the lever 8 and the hinge diameter 9, are abutted at one end outdoor

45

Vacuum switch possesses

reduced dimensions and weight due to the possibility of compensating the tangential forces arising during the operation of the drive.

Claims (1)

Invention Formula Vacuum switch containing vacuum arcing chambers with fixed electrodes installed in the housing and movable electrodes connected to an electromagnetic drive by means of hinges mounted in a pivoting lever, characterized in that, in order to increase resource, simplify construction, reduce dimensions and weight , the pivot arm is supplied, in a manner similar to the grooves 16 of the cylindrical bore 20 of the pivot arm 9, to install flat springs 25, which abut against the outer surface of the curved part 18, the hinge 9, and the ends of the groove -to end 19 of the cylindrical bore 20 of the pivot arm 8 (FIG. 4). Vacuum switch operates as follows. When power is applied to the coils of the electromagnetic actuator 1, the pivoting lever 8 rotates, the movable electrode 6 moves up and closes with the fixed electrode 3 under the action of atmospheric pressure. When the movement of the pivot arm 8, tangential forces arise, creating childbirth as when they are closed, and when opened. good switching durability and simplified design, Vacuum switch possesses high switching durability and simplified design reduced dimensions and weight due to the possibility of compensating the tangential forces arising during the operation of the drive. Invention Formula Vacuum switch containing vacuum arcing chambers with fixed electrodes installed in the housing and movable electrodes connected to an electromagnetic drive by means of hinges mounted in a pivoting lever, characterized in that, in order to increase life, simplify installation, reduce size, and assy the swivel arm is provided with en to 31332407 the surface of the hinge, and the other, in a hinge, is installed in the direction () of the lever of the slots of the pivoting lever, and with a clearance. .t T 72 FIG. 2 20 25 FIG.