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safety device

A technology of safety devices and contacts, applied in the direction of emergency protection devices, circuits, electrical components, etc.

Inactive Publication Date: 2017-07-18
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is problematic here that, when replacing fuse fuses, the fuse fuses can be detached individually from the composite structure of conductors electrically connected in parallel and can be replaced.
In this case, it can happen that although a damaged fusion fuse is replaced, other fusion fuses which may have been pre-damaged remain in the composite structure

Method used

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Examples

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Embodiment Construction

[0024] exist Figures 1A to 1D A first exemplary embodiment of the safety device 10 - 1 according to the invention is shown schematically in several views. The first fuse fuse 11 and the second fuse fuse 12 are combined into a structural unit by means of the closing plate 14 - 1 . The two safety locks 11 and 12 have a cuboid safety lock body and are connected mechanically fixedly to the closing plate 14 - 1 . The first fuse mechanism 11 has a first contact piece 21 and a second contact piece 31 . Likewise, the second fuse mechanism 12 has a first contact piece 22 and a second contact piece 32 . The first contact pieces 21 and 22 pass here through correspondingly formed openings in the closure plate 14 - 1 . In order to realize the fixed connection between the closure plate 14-1 and the first fusion safety mechanism 11 and the second fusion safety mechanism 12, these fusion safety mechanisms can be glued together with the closure plate 14-1, for example. .

[0025] The firs...

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PUM

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Abstract

The invention relates to a safety device (10), which has a first melting safety mechanism (11) and a second melting safety mechanism (12), and the second melting safety mechanism (12) is electrically identical to the first melting safety mechanism (11) )in parallel. Furthermore, the safety device ( 10 ) has a closing plate ( 14 ), which is mechanically coupled to the first melting safety device ( 11 ) and the second melting safety device ( 12 ) in such a way that a structural unit. Due to the provision of the structural unit, only one of the two fuse fuses ( 11 , 12 ) is effectively prevented from being dismantled and thus replaced. In addition, the electrical parallel connection of the two fusion fuses ( 11 , 12 ) doubles the maximum amperage of the fuse ( 10 ) or—while the maximum amperage remains the same—significantly reduces the required structure space.

Description

technical field [0001] The invention relates to a safety device for a melting safety mechanism. Background technique [0002] Fusible fuses are overcurrent protection devices which interrupt an electrical circuit by fusing one or more molten conductors when the current intensity exceeds a certain value over a certain duration. The fuse fuse comprises an insulating body which has two electrical connections which are connected to one another inside the insulating body via the fuse conductor. The molten conductor is heated and melted by the current flowing through it when the critical rated current of the fuse is significantly exceeded for a certain period of time. [0003] Such fusion fuses are used especially in so-called electrical equipment distributors in the field of electrical equipment. Since the installation space in electrical system distributors is mostly limited, in existing electrical systems the line to be protected is divided into a plurality of conductors conn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H85/04H01H85/143
CPCH01H85/12H01H85/153H01H85/22H01H85/24
Inventor M.法尔特迈尔R.赫廷格T.洛尔A.施密德
Owner SIEMENS AG
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