Non-rotationally symmetrical spark gap, in particular horn spark gap with deion chamber
The invention relates to a non-rotationally symmetrical spark gap, in particular a horn spark gap with a deion chamber, a multi-part insulating material housing ( 1 ) as a support and receiving body for the horn electrodes and the deion chamber, means for conducting the gas flow related to the arc, wherein the insulating material housing ( 1 ) is divided on the plane defined by the horn electrodes and has two half shells, and plug or screw connections ( 4, 5 ) which lead out on the end face. According to the invention, with the exception of the sections of the plug or screw connections ( 4, 5 ) leading out, the insulating material housing is surrounded on all sides by a cooling surface ( 14 ) which is near the housing and lies against the housing surface, and the cooling surface ( 14 ) is at least partly supported on webs ( 8 ) which are designed to conduct the gas flow on the outer surface of the half shells.
1. A non-rotationally symmetrical horn spark gap with horn electrodes, a deion chamber and a multi-part insulating material housing as a support and receiving body ( 1 ) for the horn electrodes and the deion chamber ( 2 ), and means for conducting a gas flow related to an arc, wherein the insulating material housing is divided on a plane ( 3 ) defined by the horn electrodes and has two half shells, the half shells having an outer surface, and plug or screw connections ( 4 ; 5 ) which are lead out on an end face;
characterized in that,
with exception of sections of the plug or screw connections ( 4 ; 5 ) which are lead out, the insulating material housing is surrounded on all sides by a cooling surface ( 7 ; 14 ) formed as a sheathing which is near the housing and lies against the housing surface,
wherein the cooling surface ( 7 ; 14 ) formed as a sheathing is at least partly supported on webs ( 8 ) present on the outer surface of the half shells which are designed to conduct the gas flow on the outer surface of the half shells.
2. The non-rotationally symmetrical horn spark gap according to claim 1 ,
characterized in that
the cooling surface ( 7 ; 14 ) formed as a sheathing is jointly connected to the half shells.
3. The non-rotationally symmetrical horn spark gap according to claim 1 ,
characterized in that
the cooling surface ( 7 ; 14 ) formed as a sheathing has beads or embossings ( 13 ; 23 ) for increasing stability.
4. The non-rotationally symmetrical horn spark gap according to claim 1 ,
characterized in that
the sheathing is composed of a material that is of good heat conduction.
5. The non-rotationally symmetrical horn spark gap according to claim 1 , characterized in that, at a front-side end of the plug or screw connections ( 4 ; 5 ) which are lead out, a slip body ( 16 ) is slid upon the half shells, which overlays at least one fastening lug ( 15 ) at least in part, wherein the at least one fastening lug ( 15 ) is an integral part of the sheathing.
6. The non-rotationally symmetrical horn spark gap according to claim 5 , characterized in that in a covering area of the slip body ( 16 ) overlaying the fastening lug, bores or recesses ( 20 ; 21 ) for force-fit connecting are provided in the support and receiving body ( 1 ).
7. The non-rotationally symmetrical horn spark gap according to claim 1 ,
characterized in that
in a realization of the sheathing ( 14 ) from an electrically conductive material, an insulating layer ( 22 ) is disposed between the outer surface of the half shells and the sheathing.
8. The non-rotationally symmetrical horn spark gap according to claim 1 ,
characterized in that,
for enlarging a heat-relevant surface area, outer sides of the sheathing have a structuring ( 23 ).
9. The non-rotationally symmetrical horn spark gap according to claim 5 ,
characterized in that,
for an easier overlaying of the fastening lugs ( 15 ), the slip body ( 16 ) has a wedge inclination ( 17 ).
10. The non-rotationally symmetrical horn spark gap according to claim 1 ,
characterized in that
the sheathing is realized as a hood that is slid on.