DE102012214881A1 - Electrical fuse for use in battery e.g. lithium-ion battery in e.g. electromotive drivable motor vehicle, has magnet for deflecting light arc generated between separate melting device elements based on separation of current path - Google Patents
Electrical fuse for use in battery e.g. lithium-ion battery in e.g. electromotive drivable motor vehicle, has magnet for deflecting light arc generated between separate melting device elements based on separation of current path Download PDFInfo
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- DE102012214881A1 DE102012214881A1 DE201210214881 DE102012214881A DE102012214881A1 DE 102012214881 A1 DE102012214881 A1 DE 102012214881A1 DE 201210214881 DE201210214881 DE 201210214881 DE 102012214881 A DE102012214881 A DE 102012214881A DE 102012214881 A1 DE102012214881 A1 DE 102012214881A1
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- melting device
- current path
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- electrical fuse
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- 238000002844 melting Methods 0.000 title claims abstract description 37
- 230000008018 melting Effects 0.000 title claims abstract description 37
- 238000000926 separation method Methods 0.000 title claims abstract description 11
- 229910001416 lithium ion Inorganic materials 0.000 title claims description 9
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims description 7
- 239000012811 non-conductive material Substances 0.000 claims description 3
- 230000008016 vaporization Effects 0.000 claims 1
- 238000009834 vaporization Methods 0.000 claims 1
- 238000001704 evaporation Methods 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- 241000156302 Porcine hemagglutinating encephalomyelitis virus Species 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000009831 deintercalation Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- -1 lithium hexafluorophosphate Chemical compound 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Images
Classifications
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- 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
- H01H85/38—Means for extinguishing or suppressing arc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/375—Vent means sensitive to or responsive to temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/36—Temperature of vehicle components or parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2270/00—Problem solutions or means not otherwise provided for
- B60L2270/10—Emission reduction
- B60L2270/14—Emission reduction of noise
- B60L2270/147—Emission reduction of noise electro magnetic [EMI]
-
- 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
- H01H85/0241—Structural association of a fuse and another component or apparatus
- H01H2085/025—Structural association with a binding post of a storage battery
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
Description
Die vorliegende Erfindung betrifft eine elektrische Sicherung zur Unterbrechung eines Strompfades, eine Batterie, welche die elektrische Sicherung aufweist, sowie ein Kraftfahrzeug mit einer, die elektrische Sicherung aufweisenden, Batterie. The present invention relates to an electrical fuse for interrupting a current path, a battery having the electrical fuse, and a motor vehicle having a, the electrical fuse having, battery.
Weltweit besteht ein erheblicher Bedarf an Batterien für breite Anwendungsbereiche, beispielsweise für Fahrzeuge, stationäre Anlagen, Mobilfunktelefone, tragbare Computer, Videokameras oder MP3-Player.There is a significant worldwide demand for batteries for a wide range of applications, such as vehicles, stationary equipment, mobile phones, portable computers, video cameras or MP3 players.
Prädestiniert für ein breites Einsatzgebiet von Applikationen ist die Lithium-Ionen-Technologie. Sie zeichnet sich unter anderem durch hohe Energiedichte und eine äußerst geringe Selbstentladung aus.Predestined for a wide range of applications is lithium-ion technology. It is characterized among other things by high energy density and extremely low self-discharge.
Stand der TechnikState of the art
Lithium-Ionen-Zellen besitzen mindestens eine positive und eine negative Elektrode (Kathode beziehungsweise Anode), die Lithium-Ionen (Li+) reversibel ein-(Interkalation) oder wieder auslagern (Deinterkalation) können. Damit die Interkalation von Lithium-Ionen beziehungsweise die Deinterkalation von Lithium-Ionen stattfindet, ist die Anwesenheit einer Elektrolytkomponente (ein sogenanntes Lithium-Leitsalz) notwendig. Praktisch bei allen derzeitigen Lithium-Ionen-Zellen, sowohl im Consumer-Bereich (zum Beispiel Mobil-Telefon, MP3-Player oder Powertools) als auch im automotiven Bereich (HEV, hybrid electric vehicle; PHEV, plug-in hybrid electric vehicle; EV, electro vehicle; Micro-Hybrid), wird als Lithium-Leitsalz das Lithiumhexafluorophosphat (LiPF6) eingesetzt. Dieses LiPF6 ist gegenüber Feuchtigkeit äußerst reaktiv, und es erfolgt in mehreren Stufen Hydrolyse bis hin zu Fluorwasserstoff (HF). Lithium-ion cells have at least one positive and one negative electrode (cathode or anode), the lithium-ion (Li + ) reversible on (intercalation) or outsource (deintercalation) can. In order for the intercalation of lithium ions or the deintercalation of lithium ions takes place, the presence of an electrolyte component (a so-called lithium-conducting salt) is necessary. Practical for all current lithium-ion cells, both in the consumer sector (eg mobile phone, MP3 player or power tools) and in the automotive sector (HEV, hybrid electric vehicle, PHEV, plug-in hybrid electric vehicle, EV , electro-vehicle, micro-hybrid), lithium hexafluorophosphate (LiPF 6 ) is used as the lithium conducting salt. This LiPF 6 is highly reactive to moisture and undergoes hydrolysis up to hydrogen fluoride (HF) in several stages.
Insbesondere in Elektro- bzw. Hybridfahrzeugen besteht die Notwendigkeit, die zum Antrieb des Fahrzeuges vorgesehene Batterie vor Kurzschlüssen und Überströmen zu schützen. Dies lässt sich am sichersten durch eine vollständige elektrische Trennung der Batterie vom Bordnetz realisieren. Allerdings können insbesondere in Havariefällen derart hohe Ströme bzw. Spannungen auftreten, dass sich ein Lichtbogen beim Trennen der Sicherung ausbildet. Der Grund für die Lichtbogenausbildung ist, dass bei einer Trennung eines Leiters Leitungsinduktivitäten entstehen, so dass im Moment der Trennung des Strompfades ein Strom weiter fließt, wodurch zum Beispiel elektrisch isolierend wirkende Umgebungsluft stark erhitzt wird und dadurch ionisiert wird, so dass die Ionen den Lichtbogen bewirken. Dieser Lichtbogen kann eine Explosion der Sicherung und/oder einen Brand der Sicherung bzw. umliegender Bauteile bewirken.In particular, in electric or hybrid vehicles, there is a need to protect the intended for driving the vehicle battery from short circuits and overcurrents. This can be most safely realized by a complete electrical separation of the battery from the electrical system. However, such high currents or voltages can occur, in particular in case of an accident, that an arc is formed when the fuse is disconnected. The reason for the arc formation is that in a separation of a conductor line inductances arise, so that at the moment of the separation of the current path, a current continues to flow, for example, electrically insulating ambient air is strongly heated and thereby ionized, so that the ions the arc cause. This arc can cause an explosion of the fuse and / or a fire of the fuse or surrounding components.
Im Automobilbereich werden oftmals Schmelzsicherungen verwendet, bei denen, auf Grund der widerstandsbedingten Erwärmung des stromführenden Materials, dieses schmilzt und somit den Strompfad unterbricht. In the automotive sector fuses are often used in which, due to the resistance-related heating of the current-carrying material, this melts and thus interrupts the current path.
Beispielhaft dafür sei die
Weitere Ausführungsformen zur Löschung eines Lichtbogens an Sicherungselementen sind aus der
So werden zur Unterbrechung von Lichtbögen zum Beispiel Trennbleche angeordnet. Alternativ können in der Nähe der Lichtbogenentstehung Spulen angeordnet werden, die bei Bestromung ein Magnetfeld erzeugen, durch welches der Lichtbogen abgelenkt wird. For example, separating plates are arranged to interrupt arcs. Alternatively, coils can be arranged in the vicinity of the arc generation, which generate a magnetic field when energized, through which the arc is deflected.
Außerdem sind Ansätze bekannt, elektrisch isolierende Materialien anzuordnen, um den Lichtbogen zu unterbrechen, wie es zum Beispiel der
Weiterhin ist es bekannt, zur Beeinflussung von Lichtbögen Magnete zu verwenden, die, auf Grund der Ausbildung des magnetischen Feldes, den Lichtbogen ablenken können, wie es zum Beispiel aus der
Offenbarung der ErfindungDisclosure of the invention
Erfindungsgemäß wird eine elektrische Sicherung zur Unterbrechung eines Strompfades zur Verfügung gestellt, die eine im Strompfad angeordnete Schmelzeinrichtung umfasst, mit welcher bei elektrischer Überlast durch Schmelzung und/oder Verdampfung automatisch der Strompfad trennbar ist. Weiterhin weist die elektrische Sicherung wenigstens einen Magnet zur Ablenkung eines Lichtbogens auf, der zwischen, auf Grund der Trennung des Strompfades, voneinander getrennten Schmelzeinrichtungselementen entsteht.According to the invention, an electrical fuse for interrupting a current path is provided which comprises a melting device arranged in the current path with which the current path can be automatically separated by electrical overload by melting and / or evaporation. Furthermore, the electrical fuse has at least one magnet for deflecting an arc, which arises between, due to the separation of the current path, separate melting device elements.
Die Sicherung ist somit zur automatischen Trennung des Strompfades eingerichtet. Das heißt, dass sie dafür eingerichtet ist, bei Erreichung einer bestimmten Überlast den Strompfad automatisch zu trennen. The fuse is thus set up to automatically disconnect the current path. This means that it is set up to achieve one certain overload to automatically disconnect the current path.
Die Schmelzeinrichtung umfasst dazu wenigstens ein bei Überlast schmelzendes und/oder verdampfendes Bauteil, welches bei elektrischer Überlast schmilzt und dadurch den Strompfad trennt.For this purpose, the melting device comprises at least one component which melts and / or evaporates when overloaded, which component melts in the event of electrical overload and thereby disconnects the current path.
Der Vorteil der Erfindung liegt insbesondere darin, dass ein Lichtbogen, der sich bei Schmelzung der Schmelzeinrichtung ausbildet, von dem so genannten Blasmagnet abgelenkt wird, so dass der Lichtbogen abreißt. Die mechanisch voneinander getrennten Enden des Strompfades sind somit auch vollständig elektrisch voneinander getrennt. The advantage of the invention is, in particular, that an arc, which forms when the melting device melts, is deflected by the so-called blowing magnet, so that the arc breaks off. The mechanically separated ends of the current path are thus also completely electrically separated from each other.
Dadurch wird eine Sicherung zur Verfügung gestellt, die in einfacher, kostengünstiger und gewichts- sowie volumensparender Bauweise die sichere Trennung eines Strompfades bei Überlast gewährleistet. As a result, a fuse is provided, which ensures the safe separation of a current path in case of overload in a simple, cost-effective and weight and volume-saving design.
Die Trennung auf Grund von Überlast erfolgt vorzugsweise bis zu einer Spannung von 450V und/oder einer Stromstärke von 200A bis 10.000A.The separation due to overload is preferably up to a voltage of 450V and / or a current of 200A to 10,000A.
Das Material der Schmelzeinrichtung ist vorzugsweise Kupfer oder Aluminium bzw. eine geeignete Legierung, die eines der beiden Materialien aufweist. The material of the melting device is preferably copper or aluminum or a suitable alloy comprising one of the two materials.
Der Magnet ist bevorzugt in seiner Nord-Süd-Ausrichtung im Wesentlichen parallel zur, in der Schmelzeinrichtung bestehenden, Stromflussrichtung angeordnet.The magnet is preferably arranged in its north-south orientation substantially parallel to the, in the melting device existing, current flow direction.
Demzufolge ist der Magnet in seiner Nord-Süd-Ausrichtung auch parallel zu einem Lichtbogen, der sich zwischen den beiden Kontaktenden einer aufgeschmolzenen Schmelzeinrichtung ausbildet, angeordnet. Vorzugsweise sind mehrere Magnete in der gleichen Ausrichtung angeordnet. As a result, the magnet in its north-south orientation is also arranged parallel to an arc that forms between the two contact ends of a fused melting device. Preferably, a plurality of magnets are arranged in the same orientation.
In einer weiteren vorteilhaften Ausgestaltung ist vorgesehen, dass der Magnet in oder an einem Grundkörper aus einem im Wesentlichen elektrisch nicht-leitfähigen Material angeordnet ist und die Schmelzeinrichtung elektrisch leitfähig mit in Stromflussrichtung vor und hinter der Schmelzeinrichtung angeordneten Kontaktelementen verbunden ist.In a further advantageous embodiment, it is provided that the magnet is arranged in or on a base body of a substantially electrically non-conductive material and the melting device is electrically conductively connected in front of and behind the melting device arranged in the direction of current flow contact elements.
Die Kontaktelemente können z.B. Stromschienen sein, die die Schmelzeinrichtung kontaktieren. Die Schmelzeinrichtung kann in einem keramischen Grundkörper aufgenommen sein, wobei der Magnet in dem Grundkörper eingebettet sein kann. Vorzugsweise ist das Material des Grundkörpers nicht elektrisch leitfähig.The contact elements may e.g. Busbars that contact the melting device. The melting device can be accommodated in a ceramic base body, wherein the magnet can be embedded in the base body. Preferably, the material of the base body is not electrically conductive.
In oder an der Sicherung kann eine Kammer ausgebildet sein, in der sich ein Gas befindet, wobei die Sicherung derart eingerichtet ist, dass das Gas bei Trennung der Schmelzeinrichtung automatisch freisetzbar ist.In or on the fuse may be formed a chamber in which a gas is located, wherein the fuse is set up such that the gas is automatically releasable upon separation of the melting device.
Die Kammer kann dabei in oder am Grundkörper der Sicherung ausgebildet sein.The chamber may be formed in or on the main body of the fuse.
Das Gas kann z.B. ein kühlendes Gas sein, welches durch die Senkung der Umgebungstemperatur der Ausbildung eines Lichtbogens entgegenwirkt. Alternativ oder hinzukommend kann es die Eigenschaft haben, eine Ionisierung der Umgebungsluft chemisch zu verhindern bzw. zu verringern und dadurch einer Lichtbogenausbildung entgegenzuwirken. Das Gas kann z.B. Wasserstoff sein. Vorzugsweise ist der Gasdruck in der Kammer höher als ein normaler Umgebungsdruck, so dass das Gas bei Öffnung der Kammer automatisch entweicht.The gas may e.g. be a cooling gas, which counteracts by lowering the ambient temperature of the formation of an arc. Alternatively or additionally, it may have the property of chemically preventing or reducing an ionization of the ambient air and thereby counteract arcing. The gas may e.g. Be hydrogen. Preferably, the gas pressure in the chamber is higher than a normal ambient pressure, so that the gas escapes automatically when opening the chamber.
Dabei kann vorgesehen sein, dass eine Wand der Kammer durch einen Abschnitt der Schmelzeinrichtung realisiert ist, welcher bei Überlast getrennt wird, so dass bei Trennung des Strompfades die Kammer automatisch öffnet und das Gas freisetzbar ist.It can be provided that a wall of the chamber is realized by a portion of the melting device, which is disconnected in case of overload, so that upon separation of the current path, the chamber automatically opens and the gas is releasable.
Der Magnet ist ein Permanentmagnet oder ein Elektromagnet.The magnet is a permanent magnet or an electromagnet.
Des Weiteren wird erfindungsgemäß eine Batterie zur Verfügung gestellt, die wenigstens eine Batteriezelle, insbesondere eine Lithium-Ionen-Batteriezelle, sowie eine erfindungsgemäße elektrische Sicherung umfasst, wobei die elektrische Sicherung elektrisch leitfähig mit der Batteriezelle verbunden ist. Furthermore, according to the invention, a battery is provided which comprises at least one battery cell, in particular a lithium-ion battery cell, as well as an electrical fuse according to the invention, wherein the electrical fuse is electrically conductively connected to the battery cell.
Vorzugsweise umfasst die Batterie mehrere Batteriezellen, an die die elektrische Sicherung angeschlossen ist. Durch die Sicherung können die Batteriezellen vor Kurzschlussströmen sowie Überströmen geschützt werden.Preferably, the battery comprises a plurality of battery cells to which the electrical fuse is connected. By securing the battery cells can be protected against short-circuit currents and overcurrents.
Ergänzt wird die vorliegende Erfindung durch ein Kraftfahrzeug, insbesondere ein elektromotorisch antreibbares Kraftfahrzeug, welches wenigstens eine erfindungsgemäße Batterie aufweist, wobei die Batterie mit einem Antriebsystem des Kraftfahrzeuges verbunden ist. The present invention is supplemented by a motor vehicle, in particular an electric motor driven motor vehicle, which has at least one battery according to the invention, wherein the battery is connected to a drive system of the motor vehicle.
Zeichnungendrawings
Ein Ausführungsbeispiel der Erfindung wird anhand der Zeichnung und der nachfolgenden Beschreibung näher erläutert. Es zeigt:An embodiment of the invention will be explained in more detail with reference to the drawing and the description below. It shows:
Es ist in der einzigen
Das heißt, dass zum Beispiel der zentrale Bereich der Schmelzeinrichtung
In weiterer Ausgestaltung kann die elektrische Sicherung
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 19705242 A1 [0007] DE 19705242 A1 [0007]
- DE 102007033180 A1 [0008] DE 102007033180 A1 [0008]
- AT 086791 E [0008] AT 086791 E [0008]
- US 7924137 B2 [0010] US 7924137 B2 [0010]
- DE 10117346 A1 [0011] DE 10117346 A1 [0011]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210214881 DE102012214881A1 (en) | 2012-08-22 | 2012-08-22 | Electrical fuse for use in battery e.g. lithium-ion battery in e.g. electromotive drivable motor vehicle, has magnet for deflecting light arc generated between separate melting device elements based on separation of current path |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210214881 DE102012214881A1 (en) | 2012-08-22 | 2012-08-22 | Electrical fuse for use in battery e.g. lithium-ion battery in e.g. electromotive drivable motor vehicle, has magnet for deflecting light arc generated between separate melting device elements based on separation of current path |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102012214881A1 true DE102012214881A1 (en) | 2014-02-27 |
Family
ID=50069557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201210214881 Granted DE102012214881A1 (en) | 2012-08-22 | 2012-08-22 | Electrical fuse for use in battery e.g. lithium-ion battery in e.g. electromotive drivable motor vehicle, has magnet for deflecting light arc generated between separate melting device elements based on separation of current path |
Country Status (1)
Country | Link |
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DE (1) | DE102012214881A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016153875A1 (en) * | 2015-03-23 | 2016-09-29 | Cooper Technologies Company | High voltage compact fuse assembly with magnetic arc deflection |
US9552951B2 (en) | 2015-03-06 | 2017-01-24 | Cooper Technologies Company | High voltage compact fusible disconnect switch device with magnetic arc deflection assembly |
US10636607B2 (en) | 2017-12-27 | 2020-04-28 | Eaton Intelligent Power Limited | High voltage compact fused disconnect switch device with bi-directional magnetic arc deflection assembly |
CN111403249A (en) * | 2020-04-03 | 2020-07-10 | 建达电气有限公司 | Fuse with spare module |
US10854414B2 (en) | 2016-05-11 | 2020-12-01 | Eaton Intelligent Power Limited | High voltage electrical disconnect device with magnetic arc deflection assembly |
US11967817B2 (en) | 2019-07-19 | 2024-04-23 | Milwaukee Electric Tool Corporation | Resettable electronic fuse for high-power devices |
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ATE86791T1 (en) | 1987-01-10 | 1993-03-15 | Merlin Gerin Ltd | AC POWER CIRCUIT AND FUSE THEREOF. |
DE19705242A1 (en) | 1997-02-12 | 1998-08-13 | Wilhelm Pudenz Gmbh Elektrotec | High voltage vehicle fuse used e.g. for floor guided vehicles |
DE10117346A1 (en) | 2001-04-06 | 2002-11-07 | Siemens Ag | Electrical overload protection switch has arc extinguishing unit with magnetic field control |
DE102007033180A1 (en) | 2007-07-13 | 2009-01-15 | Auto-Kabel Management Gmbh | Current breaker for motor vehicle electrical supply wires, especially power wires or battery cables, has first and second connector elements and a disconnecting unit |
US7924137B2 (en) | 2007-09-10 | 2011-04-12 | Cooper Technologies Company | Battery fuse assembly |
-
2012
- 2012-08-22 DE DE201210214881 patent/DE102012214881A1/en active Granted
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ATE86791T1 (en) | 1987-01-10 | 1993-03-15 | Merlin Gerin Ltd | AC POWER CIRCUIT AND FUSE THEREOF. |
DE19705242A1 (en) | 1997-02-12 | 1998-08-13 | Wilhelm Pudenz Gmbh Elektrotec | High voltage vehicle fuse used e.g. for floor guided vehicles |
DE10117346A1 (en) | 2001-04-06 | 2002-11-07 | Siemens Ag | Electrical overload protection switch has arc extinguishing unit with magnetic field control |
DE102007033180A1 (en) | 2007-07-13 | 2009-01-15 | Auto-Kabel Management Gmbh | Current breaker for motor vehicle electrical supply wires, especially power wires or battery cables, has first and second connector elements and a disconnecting unit |
US7924137B2 (en) | 2007-09-10 | 2011-04-12 | Cooper Technologies Company | Battery fuse assembly |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9552951B2 (en) | 2015-03-06 | 2017-01-24 | Cooper Technologies Company | High voltage compact fusible disconnect switch device with magnetic arc deflection assembly |
US9881761B2 (en) | 2015-03-06 | 2018-01-30 | Cooper Technologies Company | High voltage compact fusible disconnect switch device with magnetic arc deflection assembly |
US10224169B2 (en) | 2015-03-06 | 2019-03-05 | Eaton Intelligent Power Limited | High voltage compact fusible disconnect switch device with magnetic arc deflection assembly |
US10381186B2 (en) | 2015-03-06 | 2019-08-13 | Eaton Intelligent Power Limited | High voltage compact fusible disconnect switch device with magnetic arc deflection assembly |
WO2016153875A1 (en) * | 2015-03-23 | 2016-09-29 | Cooper Technologies Company | High voltage compact fuse assembly with magnetic arc deflection |
US9601297B2 (en) | 2015-03-23 | 2017-03-21 | Cooper Technologies Company | High voltage compact fuse assembly with magnetic arc deflection |
CN107430966A (en) * | 2015-03-23 | 2017-12-01 | 库珀技术公司 | High voltage compact fuse assembly with the deflection of magnetic arc |
US10854414B2 (en) | 2016-05-11 | 2020-12-01 | Eaton Intelligent Power Limited | High voltage electrical disconnect device with magnetic arc deflection assembly |
US10636607B2 (en) | 2017-12-27 | 2020-04-28 | Eaton Intelligent Power Limited | High voltage compact fused disconnect switch device with bi-directional magnetic arc deflection assembly |
US11967817B2 (en) | 2019-07-19 | 2024-04-23 | Milwaukee Electric Tool Corporation | Resettable electronic fuse for high-power devices |
CN111403249A (en) * | 2020-04-03 | 2020-07-10 | 建达电气有限公司 | Fuse with spare module |
CN111403249B (en) * | 2020-04-03 | 2022-02-01 | 建达电气有限公司 | Fuse with spare module |
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