FR3071657B1 - PYROTECHNICAL CUTTING DEVICE - Google Patents

PYROTECHNICAL CUTTING DEVICE Download PDF

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Publication number
FR3071657B1
FR3071657B1 FR1758890A FR1758890A FR3071657B1 FR 3071657 B1 FR3071657 B1 FR 3071657B1 FR 1758890 A FR1758890 A FR 1758890A FR 1758890 A FR1758890 A FR 1758890A FR 3071657 B1 FR3071657 B1 FR 3071657B1
Authority
FR
France
Prior art keywords
cut
relief
pyrotechnical
cutting device
separating
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.)
Expired - Fee Related
Application number
FR1758890A
Other languages
French (fr)
Other versions
FR3071657A1 (en
Inventor
Frederic Marlin
Alexandre Mathieu
Romain Lorenzon
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.)
ArianeGroup SAS
Original Assignee
ArianeGroup SAS
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 ArianeGroup SAS filed Critical ArianeGroup SAS
Priority to FR1758890A priority Critical patent/FR3071657B1/en
Publication of FR3071657A1 publication Critical patent/FR3071657A1/en
Application granted granted Critical
Publication of FR3071657B1 publication Critical patent/FR3071657B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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

Landscapes

  • Fuses (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

L'invention concerne un dispositif de coupure pyrotechnique (1) comprenant une première (41a) et une deuxième (41b) bornes électriques destinées à être reliées à un premier circuit électrique (111) à couper, et une troisième (42a) et une quatrième (42b) bornes destinées à être reliées à un deuxième circuit électrique (112) à couper, le dispositif comprenant : un initiateur pyrotechnique (20), une chambre (15) dans laquelle sont présentes une première (41) et une deuxième (42) portions conductrices, et un piston (30) comprenant une face inférieure (33) à partir de laquelle font saillie un premier (34) et un deuxième (35) reliefs situés respectivement en regard de la première et de la deuxième portions conductrices, la distance (dl) séparant le relief de la première portion conductrice étant inférieure à la distance (d2) séparant le relief de la deuxième portion conductrice.The invention relates to a pyrotechnic cut-off device (1) comprising a first (41a) and a second (41b) electrical terminals intended to be connected to a first electrical circuit (111) to be cut, and a third (42a) and a fourth (42b) terminals intended to be connected to a second electrical circuit (112) to be cut, the device comprising: a pyrotechnic initiator (20), a chamber (15) in which are present a first (41) and a second (42) conductive portions, and a piston (30) comprising a lower face (33) from which protrude a first (34) and a second (35) relief located respectively facing the first and the second conductive portions, the distance (dl) separating the relief from the first conductive portion being less than the distance (d2) separating the relief from the second conductive portion.

FR1758890A 2017-09-26 2017-09-26 PYROTECHNICAL CUTTING DEVICE Expired - Fee Related FR3071657B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1758890A FR3071657B1 (en) 2017-09-26 2017-09-26 PYROTECHNICAL CUTTING DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1758890 2017-09-26
FR1758890A FR3071657B1 (en) 2017-09-26 2017-09-26 PYROTECHNICAL CUTTING DEVICE

Publications (2)

Publication Number Publication Date
FR3071657A1 FR3071657A1 (en) 2019-03-29
FR3071657B1 true FR3071657B1 (en) 2020-11-13

Family

ID=61521544

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1758890A Expired - Fee Related FR3071657B1 (en) 2017-09-26 2017-09-26 PYROTECHNICAL CUTTING DEVICE

Country Status (1)

Country Link
FR (1) FR3071657B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19616994A1 (en) * 1996-04-27 1997-10-30 Dynamit Nobel Ag Pyrotechnic fuse element for circuits
FR3014594B1 (en) * 2013-12-09 2016-01-01 Ncs Pyrotechnie & Tech PYROTECHNIC CIRCUIT BREAKER
FR3045204B1 (en) * 2015-12-15 2019-06-21 Arianegroup Sas CUTTING DEVICE FOR EQUIPPING A THREE-PHASE CIRCUIT

Also Published As

Publication number Publication date
FR3071657A1 (en) 2019-03-29

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Legal Events

Date Code Title Description
PLSC Publication of the preliminary search report

Effective date: 20190329

PLFP Fee payment

Year of fee payment: 3

PLFP Fee payment

Year of fee payment: 4

ST Notification of lapse

Effective date: 20220505