DE521638C - Oil switch extinguishing chamber - Google Patents

Description

5216S8

An extinguishing chamber for oil switches with a sliding chamber inside is known Piston member as the carrier of the static contact, which is normally part of separates the effective extinguishing chamber space. During the shutdown process, the movement of the piston member takes effect the resulting gas pressure automatically increases the extinguishing space and the movement of the

ίο piston link at the same time for acceleration of the movable switching bridge of the oil switch is used. The invention relates rely on an extinguishing chamber of this type, whereby the resulting gas pressure is only used for movement a piston member is used in the extinguishing chamber for the purpose of enlarging the effective extinguishing space and thereby the sudden The load on the extinguishing chamber is dampened by the gas pressure that occurs at the moment. For the application of the Invention, there is no need to change the normal position of the resting contact or the basic structure of the extinguishing chamber.

According to the invention, a one-part or multi-part annular piston is used as the piston member, which is axially displaceable against the effect of one or one energy storage mechanism. The energy store is charged during the shutdown process and takes care of it after it has ended for returning the piston to the starting position.

An embodiment of the invention is shown in the drawing, α denotes the lead-through bolt, b the extinguishing chamber cover, c a socket as a carrier of the extinguishing chamber cylinder d, in which the extinguishing chamber base e is inserted. The quenching chamber contact / is supported by suitable intermediate elements through the ring g connected to the quenching chamber cover b , h is the movable contact which is attached to the traverse. The release chamber cover also carries a cup-like housing /, which encloses the main contact and whose lower end i ' serves as a burn-off ring, i at the same time forms the guide for the annular piston k, which is supported in the rest position by a stop ring i " . K stands below the action of a spring I. Openings m allow the oil to escape from space n. Passage openings 0 serve to discharge gas from the extinguishing chamber.

If the oil switch is opened, then k, guided by i, is moved upwards under the resulting gas pressure, the tension of the spring Z being overcome and the oil being forced out through the openings m .

Claims (3)

60 claims: 1. oil switch extinguishing chamber with a displaceable piston member arranged inside, which normally separates part of the chamber from the effective extinguishing space by moving it but during the shutdown process under the effect of the resulting gas pressure Extinguishing space is automatically enlarged, characterized in that the piston member a one-part or multi-part counter to the action of one or more energy stores is axially displaceable annular piston. 2. extinguishing chamber according to claim 1, characterized in that the annular piston in the extinguishing chamber with its inner opening through that of the release chamber cover carried cup-like housing of the fixed contacts is performed. So 3. extinguishing chamber according to claim 2, characterized by such the fixed Contacts adapted shape of the housing that its lower end in a known manner the contacts as a burn-off ring serves. '·') From the patent leakage is indicated as the inventor murder. " Arthur Schäfer in Hellerau b. Dresden. 1 sheet of drawings