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Fuse, fuse body, system and method

A safety device and safety seat technology, which is applied in emergency protection devices, emergency protection circuit devices, measuring devices, etc., can solve problems such as uncertain sensor reliability, and achieve the effect of a compact fuse safety device

Active Publication Date: 2020-03-06
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since relatively high temperatures also occur in the fuse, it is uncertain how reliably the sensor integrated in the pressure body of the fuse will function during the service life of the fuse

Method used

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  • Fuse, fuse body, system and method
  • Fuse, fuse body, system and method

Examples

Experimental program
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Embodiment Construction

[0046] figure 1 A schematic diagram of the basic structure of a standard NH fuse fuse, as known from the prior art, is shown. The fuse 1 has two terminal elements 3 which consist of an electrically conductive material, for example copper. The connector element 3 is in the form of a blade contact in the illustration, however this is not a point of the invention. The connector element 3 is mechanically fixed and hermetically connected to the protective housing 2 , which consists of a solid, non-conductive and as high-temperature-resistant material as possible, for example, ceramic, and serves as a pressure for the fuse 1 body. The protective housing 2 generally has a tubular or hollow-cylindrical basic shape and is closed to the outside in a gas-tight manner, for example by means of two closure caps 4 . The connector elements 3 in each case extend into the hollow space of the protective housing 2 through openings formed in the closure cover 4 . Arranged in this cavity is at ...

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Abstract

A fuse (1) according to the invention includes a protective housing (2) and a measurement device (10). Two electrical connection elements (3) of the fuse (1) are routed out of the protective housing and at least one fuse element (5) is arranged in the protective housing, the at least one fuse element electrically conductively connecting the two electrical connection elements (3) in the protectivehousing (2) to one another. The measurement device includes a sensor element (11) to detect a physical state measured value of the fuse (1) and a transmission apparatus (13) to transmit the measured value to a reception device arranged outside the fuse (1). The measurement device further includes a dedicated housing (12) in which the sensor element (11) is received and held, the dedicated housingbeing mechanically connected to the protective housing (2). An overall installation space required for the protective housing (2) and the dedicated housing (12) corresponds to an installation space ofa standardized NH fuse. The fuse (1) is usable for retrofit applications in the context of retrofitting or modernization of existing installations in the context of which a conventional fuse withouta measurement device (10) is intended to be replaced with the fuse according to the invention.

Description

technical field [0001] The invention relates to a fuse device with a protective housing from which two electrical connection elements lead out and in which at least one fuse is arranged, which fuses the The two connection elements are connected to one another in an electrically conductive manner, the fuse device also has a measuring device with sensor elements for detecting the physical state measurement value of the fuse device and for transmitting the measured value to the fuse device. A transmission device arranged on the receiving device outside the fuse device. Furthermore, the invention relates to a fuse holder for such a fuse, a system for the condition monitoring of a current circuit with at least one fuse, and a system for monitoring the current circuit with at least one such condition monitoring system method. Background technique [0002] The conductor through which the current flows heats up. In the case of impermissibly high currents, impermissibly intense he...

Claims

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Application Information

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IPC IPC(8): H01H85/30H01H85/175H02H7/26H02H3/08
CPCH01H85/30H01H85/175H02H7/26H02H3/08G01R15/207G01R15/202H01H2085/0266H01H2085/0275H01H2085/0291H01H85/0241G01K1/14
Inventor F.莫比斯A.施米德R.施米特V.西菲尔德
Owner SIEMENS AG
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