EP3541651A1 - Commutateur pyrotechnique et système de décharge à circuit intermédiaire - Google Patents

Commutateur pyrotechnique et système de décharge à circuit intermédiaire

Info

Publication number
EP3541651A1
EP3541651A1 EP17803820.4A EP17803820A EP3541651A1 EP 3541651 A1 EP3541651 A1 EP 3541651A1 EP 17803820 A EP17803820 A EP 17803820A EP 3541651 A1 EP3541651 A1 EP 3541651A1
Authority
EP
European Patent Office
Prior art keywords
electrical conductor
pyrotechnic switch
link
pyrotechnic
switch
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Withdrawn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
EP17803820.4A
Other languages
German (de)
English (en)
Inventor
Thomas HAMMERSCHMIDT
Wladislaw Waag
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP3541651A1 publication Critical patent/EP3541651A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0007—Measures or means for preventing or attenuating collisions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H39/006—Opening by severing a conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H2039/008—Switching devices actuated by an explosion produced within the device and initiated by an electric current using the switch for a battery cutoff
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H39/004—Closing switches

Definitions

  • the present invention relates to a pyrotechnic switch for switching off electrical circuits according to the preamble of claim 1 and a DC link discharge system according to the preamble of claim 10 and a vehicle according to the preamble of claim 16.
  • Electric or hybrid vehicles have a high voltage network in which voltages ranging between 60 volts and several hundred volts (e.g., 400 volts) may be present.
  • the high-voltage network usually includes a high-voltage battery, which is coupled to the rest of the high-voltage network via a so-called intermediate circuit, which contains at least one intermediate circuit capacitor.
  • the high-voltage network may pose a potential hazard to vehicle occupants, other road users or rescue workers.
  • the high-voltage network must therefore be reliably switched off, i.
  • the high-voltage battery must be reliably decoupled from the high-voltage network.
  • the high-voltage battery may e.g. be separated from the high-voltage network via so-called battery contactors.
  • the high-voltage intermediate circuit in particular the or the intermediate circuit capacitors arranged therein, should be discharged as quickly as possible to a relatively harmless voltage level of, for example, less than 60V (within a period of, for example, less than 5 seconds).
  • the discharge of the high-voltage DC link can be controlled via the power electronics.
  • a discharge circuit can be provided.
  • the discharge duration can be controlled via a switch in conjunction with an ohmic resistance. Since, according to the current state of technology, the energy of the high-voltage DC link can only be discharged slowly in the range of seconds, eg 5 to 40 seconds, the energy could also lead to a security risk.
  • the high-voltage components are provided with a passive and an active discharge branch in the intermediate circuit.
  • the passive discharge is used to discharge the DC link.
  • the active discharge is at the transition to hibernation or in the event of an error, e.g. Crash, switched on to reduce the existing energy in the DC link.
  • energy in the range of seconds e.g., 5-40 seconds is dissipated. The longer the unloading process takes in the DC link, the greater the security risk.
  • Pyrotechnic switches also referred to as pyro-fuses, are used to selectively and safely interrupt an electrical circuit when certain conditions occur. Pyrotechnic switches have a fast separation behavior, which makes it possible to safely disconnect the high-voltage battery from the high-voltage network of a vehicle after a vehicle crash within a very short time.
  • a pyrotechnic switch for switching off which has a body in which two conductor regions and a predetermined separation point arranged therebetween are provided. A cavity in the body encloses an ignition device. After the triggering of the ignition device, the predetermined separation point is broken down into small fragments and thus the two conductor regions are separated from one another.
  • a pyrotechnic switch can only serve to switch off a circuit.
  • the object of the present invention is to provide a pyrotechnic switch which is suitable for reliably reliably disconnecting a high-voltage battery of an electric or hybrid vehicle from the high-voltage battery. Separate electrical system and also has an additional functionality. The object of the invention is also to provide a DC link discharge system with such a pyrotechnic switch.
  • the pyrotechnic switch comprises a first electrical conductor, a second electrical conductor and an ignition element.
  • the first electrical conductor and the second electrical conductor are electrically connected to each other.
  • a predetermined separation point is provided between the first and the second electrical conductor.
  • the target separation point is separated, i. the first electrical conductor is disconnected from the second electrical conductor as soon as the ignition element is triggered.
  • the ignition or triggering of the ignition element thus causes a separation of the predetermined breaking point and thus an interruption of the previously existing electrical connection between the first and the second electrical conductor.
  • the pyrotechnic switch according to the invention has a third electrical conductor.
  • the third electrical conductor In the first state of the pyrotechnic switch, the third electrical conductor is electrically isolated from the first electrical conductor and from the second electrical conductor.
  • the third electrical conductor In a second state of the pyrotechnic switch according to the invention, i. after triggering or igniting the ignition element, the third electrical conductor is electrically connected to the second electrical conductor. In the second state, however, the third electrical conductor is still electrically isolated from the first electrical conductor.
  • Such a pyrotechnic switch can be used in its first state as an "electrical connection" between a high-voltage battery and a high-voltage vehicle electrical system
  • the pyrotechnic switch according to the invention changes to its second state, in which the second and the third electrical conductors intercommunicate what is meant for targeted unloading of capacity, ie targeted Dismantling of electrical voltages (eg in a DC link of the high voltage vehicle electrical system) can be used.
  • the pyrotechnic switch preferably has a housing with a cavity in which the ignition element is arranged.
  • the ignition element can generate a pressure rise for the separation of the predetermined separation point as soon as the ignition element is triggered.
  • the second electrical conductor and the third electrical conductor are connected to one another in such a way that the second electrical conductor is pressed against the third electrical conductor after cutting through the predetermined separation point, or vice versa, i. that the third electrical conductor is pressed against the second electrical conductor after the severing of the predetermined separation point.
  • the triggering of the ignition element thus causes a mechanical movement of the second or third electrical conductor relative to each other, so that touch the second and the third electrical conductor and are electrically connected to each other.
  • the first electrical conductor is not only separated from the second electrical conductor, but also separated from the third electrical conductor.
  • the pyrotechnic switch may have a separating bolt, which may be electrically insulating, when in the second state of the pyrotechnic switch, the second and the third electrical conductor are directly electrically connected to each other.
  • an end face of the separating bolt has a tapered, e.g. cone-shaped part, wherein the separating bolt separates the predetermined separation point such that after triggering of the ignition element, the tip of the conical part presses the second electrical conductor away from the first electrical conductor and interrupts the predetermined separation point.
  • the ignition element is arranged in the first electrical conductor or integrated into the first electrical conductor.
  • the predetermined separation point is disconnected and the second electrical conductor is pushed away from the first electrical conductor, whereby the electrical connection between the first and the second electrical conductor is interrupted.
  • the pyrotechnic switch on a viscous material which serves for the separation of the predetermined separation point. The viscous material presses after triggering the ignition element, the second electrical conductor away from the first electrical conductor and interrupts the predetermined separation point.
  • the invention proposes a DC link discharge system in which the above pyrotechnic switch is used.
  • the intermediate circuit discharge system in particular for an electric or hybrid vehicle, has the above-described pyrotechnic switch and an intermediate circuit of a high-voltage network of the vehicle, wherein the intermediate circuit has a DC link capacity.
  • the first electrical conductor of the pyrotechnic switch is connected to a high-voltage battery.
  • the second electrical conductor of the pyrotechnic switch is connected to a first terminal of the DC link capacitance and the third electrical conductor of the pyrotechnic switch is connected to a second terminal of the DC link capacitance.
  • the pyrotechnic switch In the first state of the pyrotechnic switch connects the pyrotechnic switch via the first and the second electrical conductor a high-voltage battery to the intermediate circuit of the high-voltage network of the electric or hybrid vehicle.
  • the pyrotechnic switch In the second state of the pyrotechnic switch, connects the first terminal of the DC link capacitance to the second terminal of the DC link capacitance, whereby a discharge circuit is closed, via which the DC link capacitance is discharged.
  • the DC link discharge system has a discharge resistor, wherein the third electrical conductor of the pyrotechnic switch is connected via the discharge resistor to the second terminal of the DC link capacitance.
  • the discharge circuit is dimensioned such that the voltage at the DC link capacitance is reduced to a voltage of less than 60 volts in a time period of less than 100 milliseconds.
  • the pyrotechnic switch can be triggered by a trigger signal of the electric vehicle.
  • the trigger signal can be, for example, a crash signal generated by a crash sensor, which indicates that the electric or hybrid vehicle is in a crash involved or was involved. in which a predetermined degree of deformation and / or a predetermined acceleration value has been exceeded.
  • the DC link capacitance has a value of 0.5 mF up to 4 mF. If this value is less than 4mF, the capacity is relatively inexpensive. If this value is greater than 0.5mF, there will be few high frequency ripple, which may affect the electromagnetic compatibility (EMC).
  • EMC electromagnetic compatibility
  • the discharge resistor has a value of 0.2 ohms to 10 ohms. If this value is greater than 15 ohms, the discharge time becomes comparatively long. If this value is less than 0.1 ohm, the flowing current becomes comparatively large.
  • the present invention also proposes an electric vehicle or a hybrid vehicle having an above-mentioned DC link discharge system.
  • high-voltage battery can be disconnected in the millisecond range after release from the vehicle electrical system.
  • the discharge circuit is connected by making the pyrotechnic switch, after tripping, a new electrical connection, i. a connection of the second and third electrical conductor.
  • the energy stored in the intermediate circuit can be completely or at least reduced so much by means of the DC link discharge system with the pyrotechnic switch according to the invention within a very short period of time (for example 1 to 10 milliseconds after the triggering of the pyrotechnic switch) that dangers for rescue workers are precluded.
  • the time required for the discharge of the DC link can be reduced by a factor of 1000 compared to the prior art (milliseconds instead of seconds), without increasing the costs and the installation space for the discharge circuit.
  • Basis of the invention is the use of a pyrotechnic switch as a separator in the high-voltage storage.
  • the pyrotechnic switch can safely disconnect both the high-voltage battery from the rest of the high-voltage electrical system and after the triggering of the pyrotechnic switch, a new connection can be formed so that a discharge circuit can be formed, which discharges the energy stored in the DC link capacitors of the high-voltage components is. Due to the comparatively massive contacts (first, second electrical conductor) of the pyrotechnic switch, high currents can be transmitted, which allow unloading of the DC link in the millisecond range.
  • the electro-mechanical switches shown in Fig. 1 may be replaced by a pyrotechnic switch according to the invention.
  • a pyrotechnic switch is cheaper than an electro-mechanical switch.
  • the pyrotechnic switch according to the invention enables a faster discharge of the intermediate circuit and is a cost-effective, reliable and space-saving solution.
  • a pyrotechnic switch according to a first embodiment of the invention in normal operation
  • FIG. 3 shows the pyrotechnic switch of FIG. 2 after triggering
  • FIG. 5 shows the pyrotechnic switch of FIG. 4 after tripping
  • FIG. 6 shows a schematic representation of a DC link discharge system according to the invention in normal operation
  • a pyrotechnic switch 10 for switching off and connecting electrical circuits according to a first embodiment of the invention is shown.
  • the pyrotechnic switch 10 includes a first electrical conductor 1 1, a second electrical conductor 12 and a third electrical conductor 13.
  • the electrical conductors 1 1, 12 and 13 are arranged in a housing 17 of the pyrotechnic switch 10.
  • the housing 17 has a cavity in which an ignition element 16 is arranged.
  • a normal operating state of the pyrotechnic switch 10 In a normal operating state of the pyrotechnic switch 10 (shown in Fig. 1 state), the first electrical conductor 1 1 and the second electrical conductor 12 are electrically connected together.
  • a predetermined breaking point 14 of the pyrotechnic switch 10 connects one end of the first electrical conductor 11 to one end of the second electrical conductor 12.
  • the third electrical conductor 13 is electrically isolated from the second electrical conductor 12 and the third electrical conductor in the normal operating state of the pyrotechnic switch 10 13.
  • currents can flow between the first electrical conductor 11 and the second electrical conductor 12 via the predetermined separation point 14.
  • the pyrotechnic switch 10 has a separating bolt 15, which can sever the predetermined separation point 14 between the first electrical conductor 11 and the second electrical conductor 12 after triggering the ignition element 16.
  • the separating bolt 15 is electrically insulating.
  • An end face of the separating bolt 15 comprises a conical part.
  • the ignition element 16 As soon as the ignition element 16 is triggered by the control unit 18, the ignition element 16 generates a pressure. The pressure causes the separating pin 15 moves upward and the first electrical conductor 1 1 separated at the predetermined separation point 14 from the second electrical conductor 12.
  • the electrical conductors 1 1, 12 and 13 are made of metal, such as copper, which can be deformed under pressure or force.
  • the tip of the cone-shaped part of the separating bolt 15 presses the end of the second electrical conductor 12 away from the end of the first electrical conductor 11, so that the predetermined breaking point 14 is interrupted after the triggering of the ignition element 16.
  • the pyrotechnic switch 10 of Figure 2 is shown in a tripped condition.
  • the ignition element 16 has a squib with the pyrotechnic ignition material and two control contacts. When a current is supplied through the control line in the squib, the squib ignites the ignition material.
  • the separation pin 15 pushes the end of the second electrical conductor 12 away from the end of the first electrical conductor 11. Since the material of the electrical conductor 12 is deformed by release pin 15, ie bent upward, the predetermined separation point 14 is severed. The current flowing between the electrical conductors 1 1 and 12 is therefore interrupted.
  • the separating pin 15 pushes the second electrical conductor 12 further in the direction of the third electrical conductor 13, so that after the triggering of the pyrotechnic switch 10, the second electrical conductor 12 and the third electrical conductor 13 are interconnected.
  • the release pin 15 pushes the end of the first electrical conductor 1 1 away from the predetermined separation point 14.
  • the first electrical conductor 1 1 is electrically isolated from the second electrical conductor 12 and the third electrical conductor 13. Because of the irreversibility of the pyrotechnic switch 10, the connection between the first electrical conductor 11 and the second electrical conductor 12 can not be restored.
  • the second electrical conductor 12 is connected to the third electrical conductor 13. In this state, a current may flow between the second electrical conductor 12 and the third electrical conductor 13.
  • the separation pin 15 may be formed, for example, by a viscous material, e.g. Gel or oil, with one
  • the viscous material therefore pushes the predetermined separation point 14, so that the second electrical conductor 12 is pushed away from the first electrical conductor 1 1 and the
  • Solltrennstelle 14 is interrupted by the viscous material. After cutting the Solltrennstelle 14 presses the viscous material, the second electrical conductor 12 in the direction of the third electrical conductor 13, so that after the triggering of the pyrotechnic switch 10, the second electrical conductor 12 and the third electrical conductor 13 are interconnected.
  • the high-voltage accumulator can be disconnected from the vehicle in the millisecond range after triggering. Furthermore, after triggering, the pyrotechnic switch 10 establishes a new connection between the second electrical conductor 12 and the third electrical conductor 13.
  • FIGS. 4 and 5 show a pyrotechnic switch 20 according to a second embodiment of the invention.
  • the pyrotechnic switch 20 according to the second embodiment of the invention is shown in a normal operating condition.
  • the pyrotechnic switch 20 comprises a first electrical conductor 21, a second electrical conductor 22 and a third electrical conductor 23.
  • the first electrical conductor 21 has a cavity in which an ignition element 26 is arranged.
  • a predetermined separation point 24 of the pyrotechnic switch 20 connects one end of the first electrical conductor 21 to one end of the second electrical conductor 22.
  • the third electrical conductor 23 is in the normal operating state of the pyrotechnic switch 20 electrically isolated from the second electrical conductor 22 and the third electrical conductor 23. In a normal operating condition, currents may flow between the first electrical conductor 21 and the second electrical conductor
  • the ignition element 26 As soon as the ignition element 26 is triggered, the ignition element 26 generates a pressure rise.
  • the second electrical conductor 22 is pressed away from the first electrical conductor 21 because of the pressure rise.
  • the electrical conductor 22 can by a force exerted on it
  • the ignition element 26 has a squib with the pyrotechnic ignition material and two control contacts, and if a squib is supplied via the control line, the squib ignites The first electrical conductor 21 pushes the end of the second electrical conductor 22 away from the end of the first electrical conductor 21. Since the part 28 of the electrical conductor 12 is displaced or compressed or folded, the predetermined separation point 24 is severed Connection between the electrical conductors 21 and 22 is therefore interrupted.
  • the part 28 of the second electrical conductor 12 is folded away from the electrical conductor 21 by the pressure generated by the explosion of the pyrotechnic ignition material of the ignition element 26 in the longitudinal direction of the second electrical conductor 22, so that after the triggering of the pyrotechnic Switch 20 of the second electrical conductor 22 and the third electrical conductor 23, as shown in Fig. 5, are electrically connected together.
  • the first electrical conductor 21 is electrically separated from the second electrical conductor 22 and the third electrical conductor 23. Because of the irreversibility of the pyrotechnic switch 20, the connection between the first electrical conductor 21 and the second electrical conductor 22nd not be restored.
  • the second electrical conductor 22 is connected to the third electrical conductor 23. In this condition, a current may flow between the second electrical conductor 22 and the third electrical conductor 23.
  • the cavity in which the ignition element 26 is disposed is provided in the first electrical conductor 21, and a separator pin for the pyrotechnic switch 20 is not required, the cost and installation space of the pyrotechnic switch 20 can be further reduced.
  • FIG. 6 shows a DC link discharge system 100 which has one of the pyrotechnic switches 110 described above and a DC link with a DC link capacitance 104.
  • the DC link discharge system 100 is connected between a high-voltage battery 105 and a high-voltage component 106.
  • the pyrotechnic switch 1 10 serves to sever the connection between the high-voltage battery 105 and the intermediate circuit or the high-voltage component 106 and - in an emergency or in an accident of the vehicle - to close a discharge circuit 104th
  • the first electrical conductor of the pyrotechnic switch 110 is connected to a high-voltage battery 105.
  • the second electrical conductor of the pyrotechnic switch 110 is connected to a first terminal of the DC link capacitance 104.
  • the third electrical conductor of the pyrotechnic switch 110 is connected to a second terminal of the DC link capacitance 104.
  • the DC link discharge system 100 has a discharge resistor 103.
  • the third electrical conductor of the pyrotechnic switch 110 is connected via the discharge resistor 103 to a second terminal of the DC link capacitance 104.
  • the DC link capacitance 104 has a value of 0.5 mF up to 4 mF. If this value is greater than 4 mF, the DC link capacity becomes significantly more expensive. If this value is less than 0.5 mF, more high-frequency fins will be produced, which may affect the electromagnetic compatibility (EMC).
  • EMC electromagnetic compatibility
  • the DC link capacitance 104 has a value of 1.5 mF up to 3 mF.
  • the discharge resistor 103 has a value of 0.2 ohms to 10 ohms. If this value is greater than 10 ohms, the discharge becomes comparatively slow. If this value is less than 0.2 ohms, the flowing current becomes comparatively large.
  • the discharge resistor 103 has a value of 1 ohm up to 6 ohms.
  • the pyrotechnic switch 1 10 connects the high-voltage battery 105 to the intermediate circuit or the high-voltage component 106.
  • the circuit between the high-voltage battery 105 and the intermediate circuit is short-circuited, so that the high-voltage battery 105 supplies the high-voltage component 106.
  • the pyrotechnic switch 1 10 is activated by a trigger signal 102.
  • the pyrotechnic switch 110 then disconnects the connection between the high voltage battery 105 and the high voltage component 106.
  • the DC link capacitance 104 may still store a significant amount of energy that must be dissipated for safety reasons, i. the DC link capacitance 104 must be discharged.
  • Fig. 7 shows the DC link discharge system 100 with the pyrotechnic switch 1 10 in a tripped state.
  • the pyrotechnic switch 1 10 closes the DC link capacitance 104 with the discharge resistor 103 after severing the connection between the high-voltage battery 105 and the high-voltage component 106, ie in the tripped state of the pyrotechnic switch 1 10, the first terminal of the DC link capacitance 104 is connected to the second terminal of the DC link capacitance 104 via the discharge resistor 103. Therefore, a discharge circuit 101 is closed, so that the energy stored in the DC link capacitor 104 can be discharged via the discharge resistor 103 by means of the discharge circuit 101.
  • the energy stored in the intermediate circuit can be detected by means of the DC link discharge system 100 with the pyrotechnic switch according to the invention within e.g. 1 - 10 milliseconds after the triggering of the pyrotechnic switch.
  • the electric vehicle can thus be safely touched after a few milliseconds after the triggering of the pyrotechnic switch.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Fuses (AREA)
  • Air Bags (AREA)

Abstract

La présente invention concerne un commutateur pyrotechnique (10, 20) destiné à mettre hors-circuit et à produire des circuits électriques, comprenant : un premier conducteur électrique (11, 21), un deuxième conducteur électrique (12, 22) et un élément d'allumage (16, 26), dans un premier état du commutateur pyrotechnique (10, 20), le premier conducteur électrique (11, 21) et le deuxième conducteur électrique (12, 22) étant connectés électriquement l'un à l'autre, un point de séparation de consigne (14, 24) étant disposé entre le premier conducteur électrique (11, 21) et le deuxième conducteur électrique (12, 22), le point de séparation de consigne (14, 24) étant séparé dès que l'élément d'allumage (16, 26) est déclenché, le commutateur pyrotechnique (10, 20) comportant un troisième conducteur électrique (13, 23), dans le premier état du commutateur pyrotechnique (10, 20), le troisième conducteur électrique (13, 23) étant électriquement isolé du deuxième conducteur électrique (12, 22) et du troisième conducteur électrique (13, 23) et dans un deuxième état du commutateur pyrotechnique (10, 20), le troisième conducteur électrique (13, 23) étant connecté électriquement au deuxième conducteur électrique (12, 22).
EP17803820.4A 2016-11-15 2017-11-07 Commutateur pyrotechnique et système de décharge à circuit intermédiaire Withdrawn EP3541651A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016222339.9A DE102016222339A1 (de) 2016-11-15 2016-11-15 Pyrotechnischer schalter und zwischenkreis-entladungssystem
PCT/EP2017/078400 WO2018091307A1 (fr) 2016-11-15 2017-11-07 Commutateur pyrotechnique et système de décharge à circuit intermédiaire

Publications (1)

Publication Number Publication Date
EP3541651A1 true EP3541651A1 (fr) 2019-09-25

Family

ID=60450600

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17803820.4A Withdrawn EP3541651A1 (fr) 2016-11-15 2017-11-07 Commutateur pyrotechnique et système de décharge à circuit intermédiaire

Country Status (5)

Country Link
US (1) US10661656B2 (fr)
EP (1) EP3541651A1 (fr)
CN (1) CN109641528B (fr)
DE (1) DE102016222339A1 (fr)
WO (1) WO2018091307A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016124176A1 (de) * 2016-12-13 2017-01-26 Peter Lell Elektrisches Unterbrechungsschaltglied, insbesondere zum Unterbrechen von hohen Strömen bei hohen Spannungen
DE102017111652A1 (de) * 2017-05-29 2018-11-29 Hoppecke Advanced Battery Technology Gmbh Sicherungssystem zum Schutz eines Batteriesystems
DE102017125208B4 (de) * 2017-10-27 2021-08-12 Auto-Kabel Management Gmbh Elektrisches Sicherungselement sowie Verfahren zum Betreiben eines elektrischen Sicherungselementes
DE102018201995A1 (de) * 2018-02-08 2019-08-08 Volkswagen Aktiengesellschaft Pyrotechnischer Schalter
GB2577347A (en) 2018-09-24 2020-03-25 Eaton Intelligent Power Ltd Switch with pyrotechnic actuator
FR3098006B1 (fr) * 2019-06-25 2021-07-09 Mersen France Sb Sas Coupe-circuit électrique
GB2593943A (en) * 2020-04-10 2021-10-13 Eaton Intelligent Power Ltd Power source and method for providing an activating current
DE102020111765B4 (de) * 2020-04-30 2023-09-07 Auto-Kabel Management Gmbh Elektrische Sicherungsvorrichtung, Verfahren zur Herstellung einer Sicherungsvorrichtung und ein Verfahren zum Betrieb einer elektrischen Sicherungsvorrichtung
DE102020112918B4 (de) * 2020-05-13 2023-10-05 Auto-Kabel Management Gmbh Elektrische Trennvorrichtung, System mit einer Trennvorrichtung sowie Verfahren zur Herstellung einer Trennvorrichtung
US11721988B2 (en) * 2020-11-13 2023-08-08 Dana Automotive Systems Group, Llc Methods and systems for an emergency response unit
AT524425B1 (de) * 2021-01-20 2022-06-15 Miba Emobility Gmbh Vorrichtung zum sicheren Trennen eines Hochvoltstromspeichers
CN113258541A (zh) * 2021-06-28 2021-08-13 西安中熔电气股份有限公司 一种控制电路由常开切换常闭的激励保护装置
CN113258540A (zh) * 2021-06-28 2021-08-13 西安中熔电气股份有限公司 一种控制电路断开及使储能元器件释能的电路控制装置
DE102021116831A1 (de) 2021-06-30 2023-01-05 Bayerische Motoren Werke Aktiengesellschaft Mechanisch aktivierbare Abschalteinrichtung sowie Kraftfahrzeug
FR3124886A1 (fr) * 2021-06-30 2023-01-06 Airbus Operations Ensemble coupe-circuit pyrotechnique pour aeronef, et aeronef comprenant un tel ensemble.
WO2023028634A1 (fr) 2021-09-03 2023-03-09 Miba Emobility Gmbh Dispositif de séparation sécurisée d'un accumulateur de courant haute tension
US11858354B2 (en) * 2022-04-11 2024-01-02 GM Global Technology Operations LLC Emergency disconnect circuit for high-voltage battery electric system and motor vehicle having the same

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5793275A (en) * 1995-10-23 1998-08-11 Iversen; Arthur H. Exothermically assisted arc limiting fuses
DE19712387B4 (de) * 1996-04-27 2005-12-08 Delphi Technologies, Inc., Troy Pyrotechnisches Schaltelement für elektrische Stromkreise
DE19819662A1 (de) * 1997-05-02 1998-11-12 Ellenberger & Poensgen Elektrischer Schalter zum Unterbrechen der Stromversorgung eines Kraftfahrzeuges
DE19817133A1 (de) * 1998-04-19 1999-10-28 Lell Peter Powerswitch
DE10205369B4 (de) * 2002-02-10 2004-03-25 Lell, Peter, Dr.-Ing. Elektrische Sicherung, insbesondere pyrotechnische Sicherung für das Unterbrechen hoher Stromstärken in elektrischen Schaltkreisen
DE10209627A1 (de) 2002-03-05 2003-10-02 Mbb Airbag Systems Gmbh Pyrotechnischer Schalter
US7498923B2 (en) * 2004-09-08 2009-03-03 Iversen Arthur H Fast acting, low cost, high power transfer switch
CN2802703Y (zh) * 2005-06-22 2006-08-02 陕西蓝河电气工程有限公司 ***切割式高速开关
DE102008013831B4 (de) * 2008-03-12 2012-01-26 Auto-Kabel Management Gmbh Trennvorrichtung zum Trennen von zumindest zwei elektrischen Stromkreisen sowie Kraftfahrzeug mit dieser
EP2216849B1 (fr) * 2009-02-10 2011-10-05 Autoliv Development AB Agencement de sécurité pour véhicule à moteur
JP5359982B2 (ja) * 2009-06-29 2013-12-04 豊田合成株式会社 車両の電気回路遮断装置
DE102009056865A1 (de) * 2009-12-03 2011-06-09 Daimler Ag Sicherungsschalter für eine Fahrzeugbatterie
JP4858607B2 (ja) * 2009-12-14 2012-01-18 トヨタ自動車株式会社 電源装置
DE102010011150B4 (de) * 2010-03-11 2012-03-29 Auto-Kabel Managementgesellschaft Mbh Elektrische Sicherung für Kraftfahrzeugenergieleitungen und Herstellungsverfahren für eine solche Sicherung
DE102010035684A1 (de) * 2010-08-27 2012-03-01 Auto-Kabel Managementgesellschaft Mbh Elektrische Trennvorrichtung sowie Verfahren zum elektrischen Trennen von Anschlussteilen mit Hilfe einer Trennvorrichtung
JP4985871B1 (ja) * 2010-12-27 2012-07-25 ダイキン工業株式会社 切断装置
CN102390279A (zh) * 2011-09-21 2012-03-28 奇瑞汽车股份有限公司 一种电动汽车的安全控制回路
DE102013003075A1 (de) * 2013-02-23 2014-08-28 Leoni Bordnetz-Systeme Gmbh Trennvorrichtung zur Schnellabkopplung einer Energiequelle von einer Verbraucherseite
EP2811549B1 (fr) * 2013-06-07 2018-09-19 Autoliv Development AB Dispositif sensible à la surintensité
CN203623390U (zh) * 2013-12-19 2014-06-04 观致汽车有限公司 用于车辆的连接装置以及包括该装置的车辆
CN203739667U (zh) * 2013-12-26 2014-07-30 比亚迪股份有限公司 电动汽车的放电装置及具有其的电动汽车
DE102015114894B4 (de) * 2015-09-04 2021-05-27 Peter Lell Zwei Verfahren zum gezielten Kurzschließen einer Sekundärbatterie sowie zwei elektrische Schaltkreise mit einer Sekundärbatterie und einer Überbrückungseinheit

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US20190184834A1 (en) 2019-06-20
CN109641528A (zh) 2019-04-16
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US10661656B2 (en) 2020-05-26
CN109641528B (zh) 2022-05-13

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