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Injection-molded external-cone bushing

A technology of insulating sleeves and insulators, applied in the direction of insulators, lead-in/through-type insulators, electrical components, etc., to achieve high airtightness

Inactive Publication Date: 2011-04-20
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Causes leakage currents between high-voltage contact pins and housing walls at ground potential during operation

Method used

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  • Injection-molded external-cone bushing
  • Injection-molded external-cone bushing
  • Injection-molded external-cone bushing

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0029] figure 1 The insulating bushing 1 according to the invention is shown in cross section. The insulating bushing 1 comprises a high voltage contact pin 2 and an insulator 3 , the insulator 2 comprising an inner wall region 4 and an outer wall region 5 . The inner wall region 4 is connected to the outer wall region 5 via a connecting section 6 . The outer wall region 5 extends from the flange 7 to the connecting section 6 substantially in a forward direction, which is in the figure 1 is shown by the arrow marked with x. The inner wall zone 4 extends from the connecting section 6 to the flange section in a rearward direction opposite to said forward direction, so that the outer wall zone 5, the connecting section 6 and the inner wall zone 4 define a cavity 8 which One side opens in the direction of the flange 7 .

[0030] In addition to increasing the mechanical strength, the insulating body 3 has reinforcing ribs 9 extending radially over the entire length of the insul...

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PUM

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Abstract

In order to provide a bushing (1) for energy distribution and transmission having an insulating body (3) in which a high-voltage contact bolt (2) is at least partially embedded, and having a flange (7), which is connected to the insulating body (3), for fixing the bushing (1) in a through-opening of a container wall at ground potential, which bushing can be produced in a cost-effective manner andat the same time provides the required dielectric strength, the invention proposes that the insulating body (3) has an inner wall region (4), which, owing to the injection-molding, bears flat againstthe high-voltage contact bolts, and an outer wall region (5), which is connected to the flange (7) and is connected to the inner wall region (4) via a connecting section (6), wherein the outer wall region (5) extends from the flange (7) to the connecting section (6); in a forward direction and the inner wall region (4) extends from the connecting section to the flange (7) in a rearward direction,with the result that a cavity is formed which is delimited by the inner wall region, the outer wall region and the connecting section and which is open on one side towards the flange.

Description

technical field [0001] The invention relates to an insulating bushing for power distribution and transmission, which has an insulator in which a high-voltage contact pin is at least partially buried and a flange connected to the insulator, the flange for fixing the insulating bushing to the ground Potential in the through hole on the vessel wall. [0002] In addition, the invention also relates to an airtight container with such an insulating bushing for the installation of electrical components originating in the field of power distribution and transmission. Background technique [0003] Such an insulating bushing and such a container are known from DE 9300777.9. The insulating bushing disclosed there has a solid insulating body made of cast resin, in which the high-voltage contact pins are embedded. The insulator is connected to a flange which is a circular structure in plan view. In order to fit the insulating bushing into the through-opening on the medium-voltage swit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/30H01B17/36
CPCH01B17/36H01B17/305
Inventor 罗尔夫·德克斯斯蒂芬·霍曼乔尔格·泰克曼
Owner SIEMENS AG