WO1999009575A2 - Element fusible pour installations electriques - Google Patents
Element fusible pour installations electriques Download PDFInfo
- Publication number
- WO1999009575A2 WO1999009575A2 PCT/EP1998/004683 EP9804683W WO9909575A2 WO 1999009575 A2 WO1999009575 A2 WO 1999009575A2 EP 9804683 W EP9804683 W EP 9804683W WO 9909575 A2 WO9909575 A2 WO 9909575A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuse
- reaction
- current
- fuse element
- reaction element
- 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
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/055—Fusible members
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications
-
- 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
- H01H85/46—Circuit arrangements not adapted to a particular application of the protective device
- H01H2085/466—Circuit arrangements not adapted to a particular application of the protective device with remote controlled forced fusing
-
- 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
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/055—Fusible members
- H01H85/06—Fusible members characterised by the fusible material
-
- 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
- H01H85/46—Circuit arrangements not adapted to a particular application of the protective device
Definitions
- the invention relates to a fuse element for electrical systems, in particular for vehicles.
- Fuses are used in particular in motor vehicles to protect electrical lines. Fusing with fuses has the disadvantage that optimal fuses cannot be achieved with these fuses.
- the electrical current through the fuse is measured and a thyristor is connected in parallel with the line to be protected, which can be switched on in the event of an overcurrent. As soon as a threshold value is exceeded, the thyristor switches on and generates an additional, high overcurrent in the fuse, which should trigger the fuse.
- the disadvantage of this arrangement is that large thyristors with nominal currents of a few hundred amperes or multiple thyristors must be used in parallel for large fuse values with high nominal tripping currents. It is not ensured that the necessary nominal currents for triggering the corresponding thyristors can be applied by a battery in a vehicle.
- the invention is based on the object of specifying a fuse which has a defined tripping current and which is also suitable for high tripping nominal currents.
- the invention consists in that the securing element has a fuse element which is at least partially formed by a reaction element in which an ignition signal leads to an exothermic reaction in which the melting temperature of the reaction element and / or the fuse element is at least locally exceeded.
- the reaction element preferably has aluminum and / or nickel and / or iron.
- the reaction element preferably consists of a welding foil, which consists of a layer sequence of a plurality of alternately arranged, very thin metal foils.
- the advantage here is that a reaction of the metal foils to one another can be triggered by an ignition signal, the welding foil melting and permanently interrupting the circuit very quickly.
- a preferred embodiment is that the reaction element is formed at least in regions by a fine-grain powder.
- the heating element can preferably be switched on in a controlled manner in that an ignition signal can be triggered as a function of undesired operating states in the vehicle electrical system and / or a vehicle.
- a particularly advantageous embodiment consists in connecting the securing element to a control unit for controlling the ignition pulses. This makes it possible to simulate different characteristics and also different nominal tripping currents with the same fuse element, so that the triggering curve of the fuse element can be changed dynamically.
- fuses consist of a defined shaped electrical conductor with a defined resistance.
- the current is used to heat the conductor, preferably in a specially prepared area, hereinafter referred to as the fusible conductor, and, depending on the fuse type, reaches its melting point between 420 ° C and over 1000 ° C.
- the melting of the fuse leads to an interruption in the circuit.
- a tin pill is often applied to the fuse element, which melts above 230 ° C. and enters into a reaction with the fuse element material, which results in a lowering of the melting point of the fuse element.
- a fuse element according to the invention has a fusible conductor which at least partially consists of a material which carries out a self-sustaining exothermic reaction as soon as this is triggered by an ignition pulse.
- An advantage of the solution according to the invention is that the requirements for the original securing element with regard to design tolerances can be reduced.
- a great advantage of the invention is the possibility of simulating different characteristics and / or different nominal tripping currents with the same fuse element.
- the triggering time of the safety element can advantageously be changed dynamically by a suitable intelligent control unit. This has the favorable consequence that the same securing element can be used for different loads on an electrical conductor, particularly in the case of different vehicles or vehicle variants. This makes it possible to operate different vehicles with a relatively uniform electrical see protective equipment, which simplifies production and brings cost advantages.
- fuse elements according to the invention can preferably be controlled via multiple switches.
- a preferred exothermic reaction element consists in particular of a welding foil, which triggers a strongly exothermic reaction through the action of an ignition pulse and reaches very high temperatures in a very short time.
- the welding foil preferably consists of a series of very thin metal foils, in particular aluminum and nickel foils and / or iron foils, which are alternately stacked on top of one another.
- a typical layer thickness of the individual foils is in the range from a few atomic layers to 100 atomic layers.
- the metal foil constituents react with each other and typically heat up from 25 ° C to over 1000 ° C in a few milliseconds.
- reaction elements can surround the fusible conductor, in particular a powdery reaction material can surround the fusible conductor in a capsule or be arranged adjacent to the fusible conductor in a capsule.
- the grain size of the powder is preferably in the submicron range.
- a preferred ignition method is to apply a transistor or a current surge from a capacitor to the reaction element.
- a further preferred ignition method is to apply the reaction element by means of optical excitation, in particular with ultraviolet radiation, and / or external thermal heating. It is sufficient to heat the reaction element locally in order to start the reaction there.
- Another suitable ignition method is to subject the reaction element to an ignition spark from a battery or an arc.
- a battery 1 in an on-board electrical system supplies a consumer 10.
- a fuse element is arranged between the battery 1 and the consumer 10, which has a consumer-side connection 3, a battery-side connection 2 and an intermediate fuse element 12.
- the fuse element is formed entirely from the reaction element.
- the fuse element 12 is connected to a component 7, in particular to the drain connection of a MOSFET which is connected to ground on the source side.
- the component 7 is connected to the reaction element 12 via a contact point 13 designed as a control connection.
- the component 7, which is controlled as a function of a fault can, depending on the ignition method used, also comprise a capacitor, a heat source, a battery, a high-voltage element or a light source, which provide or switch the triggering energy in the event of a fault.
- the current in a line 11 can be determined, which leads from the fuse element 2, 3, 12 to the consumer 10.
- a triggering curve of the securing element is stored in the evaluation unit 8. In the simplest case, this can be a threshold value and / or a current / time behavior of the fuse element.
- unit 8 switches component 7 on, so that a start or ignition pulse is generated and the reaction element, which acts as a fusible conductor, ignites. This heats up very quickly due to the exothermic heating of its material and melts, as a result of which the circuit is interrupted safely and in a short time.
- the MOSFET used as a switch in the event of a fault, is controlled by the trigger unit 8 in the conductive state, so that in addition a short-circuit current flows to the fault current through the fuse element 2, 3, 12 to ground, and the additional heating of the fuse element 12 which is triggered in this way initiates its exothermic self-destruction.
- the evaluation unit 8 can also be controlled by an impact sensor which, in the event of an accident in the vehicle equipped with it, e.g. fuse element 2, 3, 12 or other fuse elements used as the main fuse.
- an impact sensor which, in the event of an accident in the vehicle equipped with it, e.g. fuse element 2, 3, 12 or other fuse elements used as the main fuse.
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98942631A EP1004131A2 (fr) | 1997-08-16 | 1998-07-25 | Element fusible pour installations electriques |
JP2000510153A JP2001516126A (ja) | 1997-08-16 | 1998-07-25 | 電気設備のための安全装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19735552.8 | 1997-08-16 | ||
DE1997135552 DE19735552A1 (de) | 1997-08-16 | 1997-08-16 | Sicherungselement für elektrische Anlagen |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999009575A2 true WO1999009575A2 (fr) | 1999-02-25 |
WO1999009575A3 WO1999009575A3 (fr) | 1999-05-27 |
Family
ID=7839169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/004683 WO1999009575A2 (fr) | 1997-08-16 | 1998-07-25 | Element fusible pour installations electriques |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1004131A2 (fr) |
JP (1) | JP2001516126A (fr) |
DE (1) | DE19735552A1 (fr) |
WO (1) | WO1999009575A2 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7630180B2 (en) | 2006-04-28 | 2009-12-08 | Danfoss Compressors Gmbh | Motor starter circuit |
US7777992B2 (en) | 2006-11-07 | 2010-08-17 | Danfoss Compressors Gmbh | Motor start circuit |
US7777438B2 (en) | 2006-07-19 | 2010-08-17 | Danfoss Compressors Gmbh | Motor start circuit |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11250790A (ja) | 1998-03-03 | 1999-09-17 | Yazaki Corp | 強制溶断ヒューズおよび電流遮断装置 |
JPH11329189A (ja) * | 1998-03-12 | 1999-11-30 | Yazaki Corp | 電流遮断装置 |
JP3568817B2 (ja) * | 1999-03-10 | 2004-09-22 | 矢崎総業株式会社 | 回路遮断装置 |
JP2000260281A (ja) * | 1999-03-10 | 2000-09-22 | Yazaki Corp | 回路遮断装置 |
JP2001006518A (ja) * | 1999-04-23 | 2001-01-12 | Sony Chem Corp | 過電流保護装置 |
DE10049071B4 (de) * | 2000-10-02 | 2004-12-16 | Micronas Gmbh | Sicherungsvorrichtung für einen Stromkreis insbesondere in Kraftfahrzeugen |
DE10245393A1 (de) * | 2002-09-28 | 2004-04-08 | Wickmann-Werke Gmbh | Mittels Lichtbogen selbst-konfigurierendes Bauelement |
DE10328184B3 (de) * | 2003-06-24 | 2004-11-18 | Martin Klose | Vorrichtung mit integrierter Hochstrom-Schmelzsicherung zum Spannungsfreischalten von Starterbatterien |
DE102005036174A1 (de) * | 2005-08-02 | 2007-02-15 | Daimlerchrysler Ag | Vorrichtung und Verfahren zur Auslösung von Batterieabtrennungen in Kraftfahrzeugen |
US7969275B2 (en) * | 2007-11-14 | 2011-06-28 | Enerdel, Inc. | Fuse assembly with integrated current sensing |
JP5646214B2 (ja) * | 2010-05-27 | 2014-12-24 | 三洋電機株式会社 | 電源装置 |
JPWO2014109067A1 (ja) * | 2013-01-08 | 2017-01-19 | 日立オートモティブシステムズ阪神株式会社 | 内燃機関用点火装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1952799A1 (de) * | 1969-10-20 | 1971-04-29 | Gv Trudogowo Nautschhno I T I | Schaltungsanordnung zur Messung und Registrierung der Daten von Schwingungssignalen |
US3958206A (en) * | 1975-06-12 | 1976-05-18 | General Electric Company | Chemically augmented electrical fuse |
US4107758A (en) * | 1977-05-16 | 1978-08-15 | Sprague Electric Company | Fused oil filled capacitor |
GB2166010A (en) * | 1984-10-16 | 1986-04-23 | Brush Fusegear Ltd | Electrical fuse |
US5208575A (en) * | 1992-01-10 | 1993-05-04 | General Electric Company | Apparatus for coordinated triggering of chemically augmented electrical fuses |
US5406438A (en) * | 1992-01-15 | 1995-04-11 | General Electric Company | Apparatus for triggering chemically augmented electrical fuses |
-
1997
- 1997-08-16 DE DE1997135552 patent/DE19735552A1/de not_active Withdrawn
-
1998
- 1998-07-25 WO PCT/EP1998/004683 patent/WO1999009575A2/fr not_active Application Discontinuation
- 1998-07-25 EP EP98942631A patent/EP1004131A2/fr not_active Withdrawn
- 1998-07-25 JP JP2000510153A patent/JP2001516126A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1952799A1 (de) * | 1969-10-20 | 1971-04-29 | Gv Trudogowo Nautschhno I T I | Schaltungsanordnung zur Messung und Registrierung der Daten von Schwingungssignalen |
US3958206A (en) * | 1975-06-12 | 1976-05-18 | General Electric Company | Chemically augmented electrical fuse |
US4107758A (en) * | 1977-05-16 | 1978-08-15 | Sprague Electric Company | Fused oil filled capacitor |
GB2166010A (en) * | 1984-10-16 | 1986-04-23 | Brush Fusegear Ltd | Electrical fuse |
US5208575A (en) * | 1992-01-10 | 1993-05-04 | General Electric Company | Apparatus for coordinated triggering of chemically augmented electrical fuses |
US5406438A (en) * | 1992-01-15 | 1995-04-11 | General Electric Company | Apparatus for triggering chemically augmented electrical fuses |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7630180B2 (en) | 2006-04-28 | 2009-12-08 | Danfoss Compressors Gmbh | Motor starter circuit |
US7777438B2 (en) | 2006-07-19 | 2010-08-17 | Danfoss Compressors Gmbh | Motor start circuit |
US7777992B2 (en) | 2006-11-07 | 2010-08-17 | Danfoss Compressors Gmbh | Motor start circuit |
Also Published As
Publication number | Publication date |
---|---|
WO1999009575A3 (fr) | 1999-05-27 |
DE19735552A1 (de) | 1999-02-18 |
EP1004131A2 (fr) | 2000-05-31 |
JP2001516126A (ja) | 2001-09-25 |
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