EP3485554A2 - Coupe-circuit, destiné en particulier à un consommateur - Google Patents

Coupe-circuit, destiné en particulier à un consommateur

Info

Publication number
EP3485554A2
EP3485554A2 EP17740725.1A EP17740725A EP3485554A2 EP 3485554 A2 EP3485554 A2 EP 3485554A2 EP 17740725 A EP17740725 A EP 17740725A EP 3485554 A2 EP3485554 A2 EP 3485554A2
Authority
EP
European Patent Office
Prior art keywords
fuse
characteristic
electrical
holder
contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17740725.1A
Other languages
German (de)
English (en)
Inventor
Andreas HAMMA
Matthias Reckermann
Robert Hasenfratz
Michael Günther ZEYEN
Dietmar Bytzek
Günter Uhl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vancom Gmbh&co KG
Marquardt GmbH
Original Assignee
Vancom Gmbh&co KG
Marquardt GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vancom Gmbh&co KG, Marquardt GmbH filed Critical Vancom Gmbh&co KG
Publication of EP3485554A2 publication Critical patent/EP3485554A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • 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
    • H01H85/0039—Means for influencing the rupture process of the fusible element
    • H01H85/0047—Heating means
    • 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
    • H02H3/093—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 with timing means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • H01M2200/103—Fuse

Definitions

  • the invention relates to a fuse according to the preamble of patent claim 1.
  • Such fuses are used in particular in the power supply for an electrical consumer.
  • the electrical load is connected to its power supply via an electrical
  • a fuse is arranged, wherein the fuse comprises a securing element and a holder for the securing element.
  • the fuse is used to protect the voltage source and / or the connected consumer. In unfavorable situations and / or unfavorable conditions, however, conditions may arise in which the fuse can no longer react within the required time, so that the reliability is impaired. There is then the risk of impairment and / or destruction of the voltage source and / or the consumer, for example by a fire in the voltage source and / or in the supply line and / or in the consumer.
  • the invention has for its object to further develop the backup such that the reliability is improved. This object is achieved in a generic fuse by the characterizing features of claim 1.
  • a means for changing the characteristic and / or influencing the tripping characteristic for the fuse element is provided.
  • it may be at the fuse element to a
  • the fuse may in turn comprise a fuse wire.
  • the securing element can be configured as a component with end-side electrical connection elements.
  • the component may be cylindrical, cuboidal, prismatic or the like, and / or the connection elements to be designed in the manner of connection caps.
  • the holder may have a contact element for receiving the connection element and a connection to the electrical supply line.
  • Fuse element in the holder the contact element resiliently, screwed o.
  • the means for changing the characteristic curve and / or for influencing the tripping characteristic can comprise a heat source in thermal connection with the fuse element.
  • the fuse element can be acted upon by thermal energy.
  • the fuse can be acted upon by the introduced into the molten wire heat with thermal energy.
  • the heat source may expediently comprise an electrical heating element arranged on the contact element.
  • the fuse can be acted upon by the introduced into the molten wire heat with thermal energy. For this can
  • the heat source comprise a built-in fuse element electric heating wire.
  • a built-in fuse element electric heating wire Such a configuration is characterized by special
  • the means for changing the characteristic and / or for influencing the tripping characteristic comprise a cold source which is in thermal connection with the fuse element and / or arranged in the fuse element.
  • the fuse element can be acted upon with cold.
  • the fuse can be cooled by the introduced into the fuse wire cooling.
  • the heat and / or cold source may be a Peltier element.
  • the fuse element may be operable as a shunt resistor.
  • the electrical current flowing in the supply line can be determined on the basis of a measurement of the electrical voltage drop across the shunt resistor. This can be a
  • the contacting element for measuring the electrical voltage drop across the shunt resistor with the connection element in electrical contact.
  • the contacting element can be arranged in the region of the contact element as well as electrically insulated relative to the contact element.
  • the state of the fuse element can be diagnosed on the basis of the voltage drop measured at the shunt resistor and / or the holder. In particular, depending on the measured voltage drop, the state of the fuse can be determined. For example, hereby the quality of the Fuse of the fuse and / or the quality of the contact can be determined by means of the contact elements. Consequently, the securing means offers a further extension of the functionality without additional costs.
  • a temperature sensor can be arranged on the fuse element and / or on the holder. Conveniently, the temperature sensor in the
  • Temperature sensor the temperature of the fuse element measurable.
  • the temperature sensor as an NTC resistor, as a PTC sensor, as a semiconductor temperature sensor o. The like.
  • Battery system systems are protected against line and / or consumer fire.
  • the protection can be done with known security elements.
  • the fuses must be operated safely as long as the energy source can supply sufficient energy.
  • the idea is to equip the fuse with a heat source. This means that one initiates targeted heat in the fuse wire. As a result, a heat accumulation in the fuse can be achieved even under unfavorable conditions, whereby a melting of the securing thread is achieved. Unfavorable condition means that the energy source can not provide the required energy. This measure directly influences the fuse characteristic. This influence has effects on the downstream systems.
  • the fuse may also be equipped with a cold source for introducing cold into the fuse wire.
  • the fuse is also operated as a shunt resistor. This means you measure the voltage drop across this shunt resistor and can thus determine the flowing electrical current. Depending on this current value, it is possible to infer the condition of the fuse
  • fuse holder for a fuse in particular for a high-current fuse, having the following properties:
  • the fuse holder for a replaceable fuse in particular a high-current Sclimelz rejoin should be designed so that even over long periods of operation, especially with high currents, ensures that there is no critical contact resistance, which otherwise cause massive heating of the arrangement between the Securing element and the contacts of the fuse holder comes.
  • the fuse function of the fuse element is identical to the function of a fuse according to the prior art with all the known properties. Among other things, these fuses have very long tripping times at low overcurrents, for example at 1 10% of the rated fuse current. In addition, the fuse element by an external heating in the contact elements of the
  • Fuse holder integrated heating elements for triggering, i. to be melted.
  • the heating elements are preferably activated when through
  • Monitoring devices for example via a measurement of the load current
  • the fuse element is designed to have a defined and known behavior of its electrical resistance. This can be determined by measuring the voltage drop across the fuse element flowing through the fuse current. In addition, a poor contact of the fuse element in the fuse holder can be detected in this way.
  • the current measurement can be implemented with the fuse as a shunt element.
  • the diagnosis of the fuse can be implemented with the fuse shunt element.
  • Fig. 1 is a consumer system with a fuse in a schematic view
  • Fig. 2 shows the fuse in front and in side view
  • Fig. 3 shows the electrical circuit arrangement for the fuse.
  • a consumer system 1 with an electrical load 4 can be seen.
  • the consumer 4 is connected via a supply line 5 with an electrical voltage source 2 in electrical connection.
  • an electrical voltage source 2 As an electrical voltage source 2, a battery 3 is shown by way of example. Of course, the voltage source 2 may also be the mains voltage or the like.
  • a fuse 6 is arranged in the supply line 5, a fuse 6 is arranged.
  • the fuse 6 comprises a securing element 6 'and a holder 6 "for the securing element 6'
  • the fuse element 6 ' is in a further embodiment to a
  • the fuse 6 ' has a fuse wire 7, as shown schematically in FIG. 1.
  • the means 8 for changing the characteristic comprises a heat source 10 which is in thermal connection with the securing element 6 '. As a result, the securing element 6' is driven by corresponding activation of the means 8
  • the fuse 6 can be acted upon by heat introduced into the melting wire 7 with heat energy.
  • the fuse 6 even then functionally reliable operation, if the residual energy remaining in the battery 3 would not be sufficient for this purpose.
  • the fuse 6 in the manner of acceleration can be influenced, so that their missing and / or creeping off is prevented.
  • the securing element 6 ' as a cylindrical component with end-side electrical connection elements 12 in the manner of Connection caps designed.
  • the holder 6 has a resilient contact element 13 for receiving the connection element 12 and a connection 14 to the electrical supply line 5.
  • the securing element 6 ' is arranged in the holder 6" by clamping, so that the securing element 6 'is easily replaceable.
  • the electrical voltage is thereby from the terminal 14 via the contact element 13 to the holder 6 "to
  • Connection element 12 of the fuse element 6 ' is supplied. If desired, the securing element 6 'can also be screwed or the like can be fastened in the holder 6 ".
  • the heat source 10 comprises an electrical heating element 10 arranged on the holder 6 "or on the contact element 13.
  • the heating element 10 is located directly on the
  • Thermal energy includes.
  • Fuse element 6 'built-in electric heating wire include, but this is not shown.
  • Compound 9 standing cold source include.
  • the fuse element 6 ' is then acted upon with cold, and indeed the fuse 6' can be cooled by the introduced into the fuse wire 7 cold.
  • the fuse 6 can be influenced in the manner of a delay, so that their premature release is prevented.
  • a Peltier element is particularly suitable.
  • a Peltier element can be operated in the desired manner for heating and / or for cooling.
  • the fuse element 6 ' as a shunt resistor operable.
  • the electric current flowing in the supply line 5 is determined by means of a measurement 1 1 of the electrical voltage drop across the shunt resistor 6 'can be determined.
  • a contacting element 15 with the connection element 12 in electrical contact is arranged in the region of the contact element 13 and electrically insulated relative to the contact element 13 by passing the contacting element 15 through an opening 16 in the contact element 13 and at a distance from the contact element 13.
  • the state of the fuse element 6 'diagnosed In particular, depending on the measured voltage drop, the state of the fuse 6 ', namely the quality of the fuse filament 7 of the fuse 6' and / or the quality of the contact elements 13 of the fuse 6 'can be determined.
  • a temperature sensor 17 may be arranged on the securing element 6 'so that the temperature of the securing element 6' can be measured by means of the temperature sensor 17. Taking into account the current temperature of the fuse element 6 'is then a sensitive control of the means 8 for changing the characteristic and / or the
  • the temperature sensor 17 may be configured as an NTC resistor, a PTC sensor, a semiconductor temperature sensor, or the like.
  • the fuse (Si) 6 ' is preferably as a cylindrical component with the electrical connection caps 12 at the two ends of the
  • the fuse can also be a cuboidal component having a rectangular cross-section of, for example, 50 mm ⁇ 50 mm and a length of, for example, 100 be designed mm.
  • the fuse also another suitable design, such as a prismatic shape, with appropriate
  • the fuse wire 7 of the fuse element 6 ' is optimized in its electrical resistance Rsi (see Fig. 3) to this as a measuring shunt to
  • the fuse holder 6 "consists of metallic, resilient contact elements 13 with terminals (AI, A2) 14 to the load circuit (load current II), wherein the contact elements 13, the securing element (Si) 6 'engage around the terminal caps 12 and so the electrical contact between fuse holder and securing element 6 ', similar to the fuse holder for the known fuses described above.
  • electrical heating elements (Hei, He2) 10 are fixed, which are connected for example electrically in series.
  • the fuse holder 6 "additionally contains two further contacting elements 15, which likewise touch the terminal caps 12 of the fuse element 6 '. These contacting elements 15 are arranged spatially in the area of the contact elements 13, but are electrically insulated from them For example, the voltage drop across the actual fuse element 6 'can be measured in the sense of a sense connection.
  • a temperature sensor (Ts) 17 for example configured as an NTC, is integrated into the fuse holder 6 ", via which the temperature of the NTC
  • Fuse element 6 ' can be detected.
  • the electrical circuit diagram for the fuse 6 is shown in more detail in FIG.
  • the load current II flows via the terminal (AI) 14 through the resistor Rio, which represents the electrical contact resistance between the first contact element 13 and the fuse element 6 ', through the resistor Rsi of the fuse element 6' and then through the resistor R, the electrical Contact resistance between the second
  • Contact element 13 and the fuse element 6 ' represents the connection (A2) 14.
  • the voltage drop Usi on the fuse element 6' can be measured.
  • the contact resistance RKI and RK2 of the contacting can then be determined from the total voltage drop UGes.
  • the optional temperature sensor (Ts) 17 the temperature of the fuse element 6 'and a temperature increase can be determined by the flowing load current II.
  • the resistance RTS at the terminals Tsl and Ts2 of the temperature sensor 17 is measured.
  • Household appliances in machine tools o. The like. Are used as well as in
  • Connection element on securing element
  • Connection cap 3 Contact element (on the holder)

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Fuses (AREA)

Abstract

L'invention concerne un coupe-circuit (6) destiné à être installé sur une ligne d'alimentation électrique (5) d'un consommateur (4), le coupe-circuit (6) comprenant un élément de protection et un support pour l'élément de protection. Un moyen (8) est en outre destiné à faire varier la courbe caractéristique et/ou à influer sur la caractéristique de déclenchement de l'élément de protection.
EP17740725.1A 2016-07-15 2017-07-13 Coupe-circuit, destiné en particulier à un consommateur Withdrawn EP3485554A2 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102016008500 2016-07-15
DE102016008499 2016-07-15
DE102016008599 2016-07-19
DE102016008600 2016-07-19
PCT/EP2017/067750 WO2018011364A2 (fr) 2016-07-15 2017-07-13 Coupe-circuit, destiné en particulier à un consommateur

Publications (1)

Publication Number Publication Date
EP3485554A2 true EP3485554A2 (fr) 2019-05-22

Family

ID=59325317

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17740725.1A Withdrawn EP3485554A2 (fr) 2016-07-15 2017-07-13 Coupe-circuit, destiné en particulier à un consommateur
EP17739280.0A Withdrawn EP3485553A1 (fr) 2016-07-15 2017-07-13 Système de batterie

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP17739280.0A Withdrawn EP3485553A1 (fr) 2016-07-15 2017-07-13 Système de batterie

Country Status (3)

Country Link
EP (2) EP3485554A2 (fr)
DE (2) DE102017006520A1 (fr)
WO (2) WO2018011364A2 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT383697B (de) * 1983-09-15 1987-08-10 Wickmann Werke Gmbh Schutzvorrichtung zum unterbrechen eines stromkreises von elektrischen geraeten, maschinen etc.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255383A (en) * 1963-01-29 1966-06-07 Westinghouse Electric Corp Fuse containing means responsive to large fault currents and means responsive to small continuous overloads
DE2652495C3 (de) * 1976-11-18 1980-09-25 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Elektrische Schmelzsicherung
DE19735546A1 (de) * 1997-08-16 1999-02-18 Daimler Benz Ag Sicherungselement für elektrische Anlagen
JP2001006518A (ja) * 1999-04-23 2001-01-12 Sony Chem Corp 過電流保護装置
JP3692042B2 (ja) * 2001-02-06 2005-09-07 ソニーケミカル株式会社 保護回路付き二次電池
US7812704B2 (en) * 2003-07-08 2010-10-12 Cooper Technologies Company Fuse with fuse state indicator
US20160099459A1 (en) * 2013-05-24 2016-04-07 Super B B.V. Battery with integrated fuse

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT383697B (de) * 1983-09-15 1987-08-10 Wickmann Werke Gmbh Schutzvorrichtung zum unterbrechen eines stromkreises von elektrischen geraeten, maschinen etc.

Also Published As

Publication number Publication date
DE102017006519A1 (de) 2018-01-18
DE102017006520A1 (de) 2018-01-18
WO2018011364A3 (fr) 2018-04-05
EP3485553A1 (fr) 2019-05-22
WO2018011365A1 (fr) 2018-01-18
WO2018011364A2 (fr) 2018-01-18

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