SU828241A1 - Knife-blade switch - Google Patents

Description

one

This invention relates to electrical engineering, in particular, to switching devices of working and control circuits.

known ruoiliki containing working fixed and movable contacts, the locking mechanism and the handle IJ.

The disadvantage of such devices is the absence of a mechanism for controlling the closing and opening of the circuits.

Knife switches containing several insulating cases are also known, in each of which there are various iodil and fixed contacts, a control shaft, a handle, a locking mechanism and a control mechanism, which includes other moving and fixed contacts and another shaft, and the shaft passes through the said insulating housings, and the handle is installed with the possibility of interaction with the locking mechanism | 2 |.

The known devices have a complex structure, low reliability of control of switching of working circuits and a large amount of precious metals is used in them.

The purpose of the invention is to simplify the design, increase the reliability of control of the switching of working circuits and reduce the consumption of precious metals.

For this purpose, in the switch, containing several insulating cases, each of which has a different moving and fixed contacts that control

a shaft, a handle, a locking mechanism, and a control mechanism including other movable and fixed contacts and another shaft, the control shaft passing through said insulating

the body, and the handle is installed with the possibility of interaction with the locking mechanism, the sub-contacts of the control mechanism are fixed on its shaft, the said shaft of the control mechanism is coupled with

the control shaft and is located on the same axis with it, and the angle of rotation of the working movable contacts is equal to the angle of rotation of the movable contacts in the control mechanism.

FIG. 1 shows a general view of the switch; in fig. 2 .-- working movable and fixed contacts and movable and fixed contacts of the control mechanism. The switch contains insulating bodies 1 with working fixed contacts 2 and working moving contacts 3, a locking mechanism 4, a control shaft 5 with a groove 6, a handle 7, a shaft of the control mechanism 8 located in the groove

6, with movable contacts 9 of the control mechanism fixed on it and impermeable contacts 10 of the control mechanism, located between the insulating elements 11. Insulating corzus I with working non-moving contacts 2 and working movable contacts 3, locking mechanism 4 and control shaft 5 stats studs 12, nuts 13 and generally form a knife switch unit with control using the handle 7. Insulating elements 11 with movable contacts 9 of the control mechanism and stationary contacts 10 of the control mechanism through the holes in the insulators are studs with studs 14. The on / off switch of the knife switch is performed by the handle 7 connected to the control shaft 5.

The switch works as follows.

To close the electrical circuit, turn the control shaft 5 with the handle 7 until the contacts are fully closed, which is accompanied by a characteristic click of the locking tab. To disconnect the electric circuit, the handle 7 is turned in the opposite direction to the stop, which is also accompanied by: pressing the lock. When the knife switch is turned on and off, the control shaft 5 rotates while simultaneously rotating the shaft of the control mechanism 8, on which the moving contacts 9 of the control mechanism are fixed, which are closed or open with the non-moving contacts 10 of the control mechanism, monitoring the state of the contacts of the knife switch ( contacts of the breaker power circuits) and

signal it. In this case, the switching of the operating and control circuits occurs simultaneously, since the angle of rotation (a) of the working movable contacts 3 of the switch of the switch is equal to the angle of rotation (a) of the movable contacts 9 of the control mechanism.

Formula is invented and

A chiller containing several insulating housings, each of which contains working mobile and non-base contacts, a control shaft, a handle, a locking mechanism and a control mechanism, including other movable and fixed contacts and another shaft, and the control shaft passes through the aforementioned insulating corus, and the handle is installed with the ability to interact with the locking mechanism, characterized in that, in order to simplify the design, increase the reliability of control of switching the working circuits and reduce Flow tim precious metals The mechanism controlling the movable contacts are fixed on its shaft, said shaft control mechanism interfaced with the control shaft and arranged them on the same axis, the angle of rotation of movable contacts working set equal to the rotation angle control mechanism of the movable contacts.

Information sources,

taken into account in the examination

1. The UK patent number 1298510, cl. P IN, 1972.

2.TU 16.525.005-74, 1974, p. 64.

FIG. 2

Claims (1)

Claim A circuit breaker comprising several insulating housings, each of which contains working movable and fixed contacts, a control shaft, a handle, a locking mechanism and a control mechanism including other movable and fixed contacts and another shaft, the control shaft passing through said insulating housings and the handle is installed with the possibility of interaction with the locking mechanism, characterized in that, in order to simplify the design, increase the reliability of control of switching of working circuits and reduce I consumption of precious metals, the movable contacts of the control mechanism are fixed on its shaft, the said shaft of the control mechanism is paired with the control shaft and is located on the same axis with it, and the angle of rotation of the working movable contacts is set equal to the angle of rotation of the movable contacts of the control mechanism.