WO1999040599A1 - Electric fuse-link and an indicator for an electric fuse-link - Google Patents
Electric fuse-link and an indicator for an electric fuse-link Download PDFInfo
- Publication number
- WO1999040599A1 WO1999040599A1 PCT/EP1999/000812 EP9900812W WO9940599A1 WO 1999040599 A1 WO1999040599 A1 WO 1999040599A1 EP 9900812 W EP9900812 W EP 9900812W WO 9940599 A1 WO9940599 A1 WO 9940599A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- leg
- fuse
- indicator
- link
- housing
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
- H01H85/303—Movable indicating elements
Definitions
- the invention relates to an electrical fuse link according to the preamble of claim 1 and a detector for an electrical fuse link.
- the invention relates in particular to an NH fuse link, consisting of a fuse housing provided on both ends with cover plates and filled with an extinguishing agent, through which the main fusible conductor and an indicator fusible conductor extend, which lie on the contact knives projecting over the cover plates, with one Axially parallel through the housing shell extending bore or opening and a viewing opening extending from the circumference of the fuse housing, which runs out into the bore at a distance from the end faces of the housing and with a filling opening, which can be added with a plug, in at least one of the cover plates, with one in the bore in the casing of the fuse housing with a protrusion over the access-side cover plate, extending against the spring force in its initial position beyond the viewing opening, penetrating through the plug closing the filling opening of the corresponding cover plate ends of the indicator fuse, which is attached to its angled projection, fixed in its starting
- Identifiers forming part of NH fuse-links have the task of indicating that the fuse has failed.
- the failure indicator on the front side of the fuse visible to the surveillance personnel or on its scope is required.
- both display options have already been implemented on one and the same NH fuse link (DE-B-1 034 751).
- a bore extending from an end face of the housing is provided in the jacket of the fuse housing, into which a view opening extending from the periphery of the housing opens at a distance from the end face.
- a band-shaped indicator is guided in this bore, which in the initial situation extends beyond the viewing opening into the bore and is fixed with an angled cover plate, which bears against the insert-side cover plate, through the wire-shaped display fuse element extending through the fuse housing.
- a spring which is braced in the starting situation on a shoulder formed in the bore and which, after the fuse element has melted, is moved by a publisher.
- the object of the present invention is to provide an electrical fuse link of the type mentioned at the outset, which is simple and inexpensive in terms of both display areas.
- the above-mentioned object is achieved according to the invention in the case of an electrical fuse link of the type mentioned at the outset by the characterizing features of patent claim 1.
- the indicator according to the invention itself is designed according to the features of claim 2.
- the elongated leg of the indicator which extends in the bore or opening formed in the jacket of the security housing and in its starting position extends beyond the viewing opening in the jacket of the security housing into a protrusion beyond the access side Cover plate with at least two legs, in particular angled in the same direction, of which the end region has a passage for the stopper which closes the filling opening in the cover plate and, in connection therewith, fixes the indicator with respect to the cover plate, which is penetrated by the fuse element which angled the indicator , in the state of security against the leg of the detector which rests against one another.
- the invention provides a one-piece indicator, which is preferably equipped with integrated spring properties, but can also be acted upon by at least one separate spring element, via which the failure of the NH safety insert both on the circumference and on one of the end faces of the NH -Safety insert is displayed.
- This solution proves to be extremely advantageous for the manufacture of such NH safety inserts.
- the indicator according to the invention per se is ultimately a correspondingly angled strip, preferably with a stopper attached to it, for fixing the indicator on the fuse link and a fuse element already attached to it, so that the result is an easy-to-use structural unit.
- Embodiments of the invention result from subclaims 2 to 10.
- a multiple bending of the indicator overhang results in a correspondingly large overhang of the indicator over the cover plate when the fuse has blown, ie has failed.
- the new indicator can also be provided with the stopper that fixes it to the cover plate of the security housing and, if necessary, with the fuse element.
- a memory metal indicator makes it easier to install the NH safety insert.
- Fig. 3 is a representation of the blown corresponding to Fig. 1
- FIG. 4 shows a representation of the situation in FIG. 3 corresponding to FIG. 2,
- Fig. 7 shows the new display element in a relaxed state. - 4 -
- an NH safety insert 1 which has a fuse housing 11 closed by cover plates 12, 12 'and a main fuse element 14 which extends through the fuse housing 11 filled with extinguishing agent and which has contact blades 13 penetrating the cover plates 12, 12' at the end , 13 'is provided.
- a so-called indicator fusible conductor 17, which extends through the fuse housing 11, is provided, which is wire-shaped and which penetrates the plug 122 which closes the filling opening 121 in the cover plate 12 (FIG. 5), with which a plug which bears against the cover plate 12 or which a signal element, a so-called indicator 18, which is inserted in a recess in the cover plate 12 against spring pressure, is fixed relative to the cover plate 12.
- the indicator 18 which is initially fixed by the indicator fuse element 17 with respect to the cover plate 12, moves out of the recess in the cover plate 12, indicating the failure of the safety insert 1. It is therefore a status indicator of the fuse link 1 on one of its end faces.
- an elongated leg 181 of the indicator 18 which in turn is fixed against spring pressure in its initial position by the display fuse element 17 (FIG. 5) passing through the filling opening 121 in the cover plate 12, in which the free end of the indicator overlaps the viewing opening 113 in the sheath 111 of the fuse housing 11 also extends and thus indicates the functionality of the NH fuse link.
- the failure indicator on the front side is caused by the protrusion of the elongated leg 181 of the indicator 18 resulting from the displacement of the indicator 18 leading in the bore 1 12 formed in the casing of the security housing 11, over the on-site cover plate 12 of the security housing 11.
- the indicator designed as a one-piece element is for the circumferential display and for the front display or control of NH fuse links 1
- the detector 18 shown in a relaxed state in FIG. 7 consists of a spring steel strip with an elongated leg 181, which is followed by a first leg 182 angled at a substantially right angle, followed by a second leg 183 angled in the same direction at an acute angle , on which is followed by a third leg 184, which is angled in the opposite direction at a corresponding acute angle in the direction of the region 183, with a passage 186 for the plug 122 which closes the filling opening 121 in the cover plate 12.
- the elongated leg 181 of the indicator 18 of the display element 18 extends into the longitudinal bore or opening 112 formed in the casing 111 of the fuse housing 11, specifically when the indicator 18 is tensioned (FIGS. 1, 2 and 5) with an overlap of the circumference of the security housing 1 1 outgoing viewing opening 1 13 resulting insertion depth.
- the legs 182, 183 and 184 which are angled in sequence, close to this elongated leg 181 with the projection 181 ′ remaining in the tensioned state of the display element 18 over the cover plate 12 or the base of the recess 123 formed in the plate, namely the legs 182 and 183 in the same direction and the area 184 angled in the opposite direction, which, by means of the fusible conductor 17 passing through the filling opening 121 in the cover plate 12, forms a tensioned spring (FIGS. 1 and 5) resulting in the initial situation.
- the starting situation indicating the functionality of the NH security insert 1 is thus characterized in that the free end 181 "of the indicator 18 leading with its elongated leg 181 in the longitudinal bore 112 in the casing 111 of the security housing 11 extends over the one in the longitudinal bore 1 12 opening viewing opening 1 13 extends and the parts of the protrusion of the indicator 18 over the corresponding cover plate 12 forming legs 182, 183 and 184 pressed together in the intended recess formed in the cover plate 12 recess 123.
- a one-piece indicator with integrated spring properties is provided for checking the security of its functionality or for indicating its failure both on the circumference and on one of its end faces, a solution which has an advantageous effect on production, which is particularly advantageous in the case of mass products, and such a mass product involves NH safety interventions, which then also results in lower production costs.
Landscapes
- Fuses (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT99907520T ATE220475T1 (en) | 1998-02-06 | 1999-02-08 | ELECTRICAL FUSE LINKS AND INDICATOR FOR AN ELECTRICAL FUSE LINKS |
AU27242/99A AU2724299A (en) | 1998-02-06 | 1999-02-08 | Electric fuse-link and an indicator for an electric fuse-link |
EP99907520A EP1051719B1 (en) | 1998-02-06 | 1999-02-08 | Electric fuse-link and an indicator for an electric fuse-link |
DE59901990T DE59901990D1 (en) | 1998-02-06 | 1999-02-08 | ELECTRICAL FUSE INSERT AND DETECTOR FOR AN ELECTRICAL FUSE INSERT |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19804777.0 | 1998-02-06 | ||
DE19804777A DE19804777A1 (en) | 1998-02-06 | 1998-02-06 | NH fuse link with indicator |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999040599A1 true WO1999040599A1 (en) | 1999-08-12 |
Family
ID=7856865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/000812 WO1999040599A1 (en) | 1998-02-06 | 1999-02-08 | Electric fuse-link and an indicator for an electric fuse-link |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1051719B1 (en) |
AT (1) | ATE220475T1 (en) |
AU (1) | AU2724299A (en) |
DE (2) | DE19804777A1 (en) |
WO (1) | WO1999040599A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10005145A1 (en) * | 1999-12-23 | 2001-07-19 | Sicherungen Bau Gmbh | Fuse insert has indicator melting lead passing through cover plate holes, fixed to cover plate by conducting cap region, flange with contact opening section protruding into cover plate opening |
EP1403893A1 (en) * | 2002-09-27 | 2004-03-31 | Jean Müller GmbH Elektrotechnische Fabrik | Cartridge fuse particularly for low-voltage high-power fuses |
EP1403894A1 (en) * | 2002-09-27 | 2004-03-31 | Jean Müller GmbH Elektrotechnische Fabrik | Cartridge fuse particularly for low-voltage high-power fuses |
DE10066075B4 (en) * | 1999-12-23 | 2005-09-29 | Siba Fuses Gmbh & Co. Kg | Fuse insert has indicator melting lead passing through cover plate holes, fixed to cover plate by conducting cap region, flange with contact opening section protruding into cover plate opening |
EP1345247B2 (en) † | 2002-03-12 | 2010-10-13 | Cooper Technologies Company | Fuse assembly |
WO2011114176A1 (en) | 2010-03-18 | 2011-09-22 | Kopcic Nikola | Fuse link status indicator for a low-voltage high -power fuse |
EP4099358A1 (en) | 2021-06-01 | 2022-12-07 | SALTEK s.r.o. | Overcurrent protection device, particularly for the protection of surge arresters |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ300923B6 (en) * | 2002-03-25 | 2009-09-09 | Oez S.R.O. | Knife-edge fuse contact and process for producing thereof |
DE102004004674B4 (en) * | 2004-01-29 | 2006-07-27 | Weber Holding B.V. | Electric fuse link, in particular for a low-voltage high-performance fuse |
EP1560245B1 (en) * | 2004-01-29 | 2013-09-18 | Weber Ag | Cartridge fuse particularly for a low-voltage high-power fuse |
CZ299300B6 (en) * | 2004-11-10 | 2008-06-11 | Oez S. R. O. | Electric fuse link with dual indication of operational status |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1183227A (en) * | 1956-09-29 | 1959-07-03 | Voigt & Haeffner Ag | Safety fuse cartridge |
EP0044997A2 (en) * | 1980-07-25 | 1982-02-03 | Siemens Aktiengesellschaft | Low voltage-high power fuse with spring blade indicator |
DE4236212C1 (en) * | 1992-10-27 | 1993-12-09 | Sicherungen Bau Gmbh | Fuse element with fuse condition display spring - has spring tensioned via fuse wire attached to end cap at point above filling opening aperture receiving spring |
WO1998007172A1 (en) * | 1996-08-08 | 1998-02-19 | Siemens Aktiengesellschaft | Fuse link |
DE29807928U1 (en) * | 1997-06-05 | 1998-09-24 | Lindner GmbH, 91330 Eggolsheim | Electrical fuse link |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE522214A (en) * | 1952-08-21 | |||
DE19723540B4 (en) * | 1997-06-05 | 2009-06-04 | Ferraz Shawmut Gmbh | Electric fuse link |
-
1998
- 1998-02-06 DE DE19804777A patent/DE19804777A1/en not_active Withdrawn
-
1999
- 1999-02-08 AU AU27242/99A patent/AU2724299A/en not_active Abandoned
- 1999-02-08 DE DE59901990T patent/DE59901990D1/en not_active Expired - Lifetime
- 1999-02-08 EP EP99907520A patent/EP1051719B1/en not_active Expired - Lifetime
- 1999-02-08 AT AT99907520T patent/ATE220475T1/en active
- 1999-02-08 WO PCT/EP1999/000812 patent/WO1999040599A1/en active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1183227A (en) * | 1956-09-29 | 1959-07-03 | Voigt & Haeffner Ag | Safety fuse cartridge |
EP0044997A2 (en) * | 1980-07-25 | 1982-02-03 | Siemens Aktiengesellschaft | Low voltage-high power fuse with spring blade indicator |
DE4236212C1 (en) * | 1992-10-27 | 1993-12-09 | Sicherungen Bau Gmbh | Fuse element with fuse condition display spring - has spring tensioned via fuse wire attached to end cap at point above filling opening aperture receiving spring |
WO1998007172A1 (en) * | 1996-08-08 | 1998-02-19 | Siemens Aktiengesellschaft | Fuse link |
DE29807928U1 (en) * | 1997-06-05 | 1998-09-24 | Lindner GmbH, 91330 Eggolsheim | Electrical fuse link |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10005145A1 (en) * | 1999-12-23 | 2001-07-19 | Sicherungen Bau Gmbh | Fuse insert has indicator melting lead passing through cover plate holes, fixed to cover plate by conducting cap region, flange with contact opening section protruding into cover plate opening |
DE10005145C2 (en) * | 1999-12-23 | 2002-11-07 | Sicherungen Bau Gmbh | Fuse link, especially NH fuse link |
DE10066075B4 (en) * | 1999-12-23 | 2005-09-29 | Siba Fuses Gmbh & Co. Kg | Fuse insert has indicator melting lead passing through cover plate holes, fixed to cover plate by conducting cap region, flange with contact opening section protruding into cover plate opening |
EP1345247B2 (en) † | 2002-03-12 | 2010-10-13 | Cooper Technologies Company | Fuse assembly |
EP1403893A1 (en) * | 2002-09-27 | 2004-03-31 | Jean Müller GmbH Elektrotechnische Fabrik | Cartridge fuse particularly for low-voltage high-power fuses |
EP1403894A1 (en) * | 2002-09-27 | 2004-03-31 | Jean Müller GmbH Elektrotechnische Fabrik | Cartridge fuse particularly for low-voltage high-power fuses |
WO2011114176A1 (en) | 2010-03-18 | 2011-09-22 | Kopcic Nikola | Fuse link status indicator for a low-voltage high -power fuse |
US20130002393A1 (en) * | 2010-03-18 | 2013-01-03 | Nikola Kopcic | Fuse link status indicator for a low-voltage high-power fuse |
CN103003908A (en) * | 2010-03-18 | 2013-03-27 | 尼古拉·考培科 | Fuse link status indicator for a low-voltage high-power fuse |
EP4099358A1 (en) | 2021-06-01 | 2022-12-07 | SALTEK s.r.o. | Overcurrent protection device, particularly for the protection of surge arresters |
Also Published As
Publication number | Publication date |
---|---|
AU2724299A (en) | 1999-08-23 |
EP1051719B1 (en) | 2002-07-10 |
DE59901990D1 (en) | 2002-08-14 |
ATE220475T1 (en) | 2002-07-15 |
EP1051719A1 (en) | 2000-11-15 |
DE19804777A1 (en) | 2000-02-24 |
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