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Energy supply device for explosion-proof electronic functional units

A functional unit and energy supply technology, applied in the direction of preventing/reducing unwanted electric/magnetic influences, electrical components, circuits, etc., can solve problems such as influences, and achieve the effect of enhancing formation

Inactive Publication Date: 2015-04-29
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at high packing densities the choke coils designed as air-core coils interfere with each other

Method used

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  • Energy supply device for explosion-proof electronic functional units

Examples

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Embodiment Construction

[0018] For this energy supply device, the functional units are fed with a high-frequency alternating voltage, which is fed out for each functional unit individually via a choke coil 1 . Specifically, a distribution printed circuit board 4 is provided with a plurality of choke coils 1 , and the choke coils 1 are arranged vertically on the distribution printed circuit board 4 .

[0019] Choke coil 1 is designed as interconnected, substantially overlapping conductor tracks 2 of a multilayer printed circuit board 3 . In this case, each metallization layer of the multilayer printed circuit board 3 has at least one winding of the inductor 1 .

[0020] The choke coil 1 is mechanically fixed on the distribution printed circuit board 4 and is electrically contacted. For this purpose, the distribution printed circuit board 4 has multilayer conductor tracks 2 .

[0021] The layer of the multilayer printed circuit board 3 of each choke 1 parallel to its conductor track 2 is covered over...

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Abstract

An exemplary energy supply device for explosion-proof electronic functional units, in which the functional units are supplied from a high-frequency AC voltage that is individually output for each of the functional units via an inductor. In order to supply a multiplicity of functional units with little effort, the multi-level printed circuit board of each inductor can be covered with a flat board of magnetic material. The flat board being parallel to a plane of conductor tracks of the inductors.

Description

technical field [0001] The invention relates to an energy supply device for a plurality of explosion-proof electronic functional units. Background technique [0002] Such energy supply devices are used in automation equipment for powering process-related components and communication devices associated with these components. [0003] Such an energy supply device is known from EP 1014531 A2, in which the functional units are fed with a high-frequency alternating voltage which is fed out for each functional unit individually via a choke coil. It is provided that the winding of the choke coil is formed as interconnected, substantially overlapping conductor tracks of a multilayer printed circuit board, which is known in principle from JP 62154609 A1. Furthermore, it is proposed that the inductance required for the choke is produced by means of a ferrite core which is passed through an opening in the multilayer printed circuit board. [0004] This arrangement has several disadva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J5/00
CPCH01F2027/2809H01F2027/2814H01F27/2804H01F27/36H01F27/366H01F27/24
Inventor B·文施R·克雷施曼R·谢弗T·库尔U·德罗费尼克
Owner ABB (SCHWEIZ) AG