WO2022003080A1 - Coupe circuit pyrotechnique - Google Patents
Coupe circuit pyrotechnique Download PDFInfo
- Publication number
- WO2022003080A1 WO2022003080A1 PCT/EP2021/068114 EP2021068114W WO2022003080A1 WO 2022003080 A1 WO2022003080 A1 WO 2022003080A1 EP 2021068114 W EP2021068114 W EP 2021068114W WO 2022003080 A1 WO2022003080 A1 WO 2022003080A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- opening member
- circuit breaker
- internal
- leakage current
- conductor portions
- Prior art date
Links
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
-
- 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
Definitions
- the present invention relates generally to a pyrotechnic circuit breaker intended to be mounted on a motor vehicle, and in particular in an electric power circuit of a motor vehicle, for example a hybrid vehicle or an electric vehicle.
- Circuit breakers are known in the prior art, such as that described in document US20130175144, which proposes to use an insulating material capable of creeping.
- this system has the particular drawback of requiring a lot of insulating material which can creep, which requires large quantities, can generate leaks.
- precautions and authorizations will be necessary for automobile use (due to incompatibility with the paint, for example).
- the Applicant has noticed that such an insulating material capable of creeping can generate longer opening times and / or degraded performance during operation of the circuit breaker (the time taken to effectively cut off the passage of a current of high power (for example at least 100 A / 100 V, or for example 800 A / 450 V)).
- a current of high power for example at least 100 A / 100 V, or for example 800 A / 450 V
- An aim of the present invention is to respond to the drawbacks of the prior art mentioned above and in particular, first of all, to provide a pyrotechnic circuit breaker that is simple to manufacture, having high cutting capacities, a long life. quick opening during operation, and good insulation resistance after opening.
- a first aspect of the invention relates to a pyrotechnic circuit breaker comprising:
- connection terminals at least two connection terminals, - an internal electrical circuit connecting the two connection terminals and formed for example by an electrical conductor
- an opening member mobile and arranged to open a part to be opened of the internal electrical circuit when moving between an initial position and a final position, so as to form at least two separate conductor portions after opening
- a pyrotechnic actuator arranged to move the opening member from the initial position to the final position
- the insulating grease is arranged on or covers at least two predetermined parts of the internal wall.
- the insulating grease is arranged on or covers at least two predetermined parts of the internal wall, to cut or cover or cross leakage current paths present on the internal wall after the operation of the. pyrotechnic actuator, even if the latter has projected conductive particles on the internal wall of the internal chamber.
- conductive particles are "embedded" in the insulating grease, and it suffices to provide this insulating grease on at least part of the leakage current path to cut any leakage current, so as to provide a resistance of high isolation. It can be noted that it suffices to provide the insulating grease on at least two predetermined parts of the internal wall, to cut or cover or cross leakage current paths present on the internal wall after the operation of the pyrotechnic actuator, this which limits the amount of fat needed to provide high insulation resistance (at least 2 to 10 seconds after operation).
- the insulating grease has no function to limit the presence of electric arcs during operation, so there is no need for a large amount. It suffices to coat the two predetermined parts of the inner wall. In particular, the insulating grease is placed mostly away from the conductor forming the part to be opened of the internal electrical circuit, so as not to be subjected to the influence of an electric arc.
- the insulating grease can be arranged at a distance from an electric arc path.
- the insulating grease can be arranged at a distance from the internal electrical circuit at the time of the opening effected by the opening member.
- the electrical conductor to be cut is free from insulating grease, which prevents any interaction between the insulating grease and an electric arc generated during the cut.
- the conductor forming the part to be opened of the internal electrical circuit may have an opening zone or a zone of weakness intended to be cut or opened by the opening member, and the opening zone or area of weakness is free of insulating grease, at least before and even during operation of the circuit breaker.
- said at least two predetermined parts of the internal wall can be arranged on either side of the cutting member, in a direction transverse to the direction of movement of the cutting member.
- said at least two predetermined parts of the internal wall can be distinct.
- the insulating grease can be arranged on or can cover only said at least two predetermined parts of the internal wall.
- the amount of insulating grease is limited to precise wall parts, which ensures a small total amount, and also low opening times, compared to the case where a large amount of insulating grease is used.
- the grease has less risk of influencing the behavior of the arc when the current is cut.
- the insulating fat may have a mass of less than 80 mg, for example 20 ⁇ 10 mg, and preferably 15 ⁇ 10 mg per predetermined area.
- the insulating fat may have a mass of less than 80 mg, for example 20 ⁇ 10 mg, and preferably 15 ⁇ 10 mg per predetermined area.
- said at least two predetermined parts of the internal wall can be arranged on or can pass through a leakage current path between the two separate conductor portions.
- said at least two predetermined parts of the internal wall can be arranged on or can pass through a shortest leakage current path between the two conductor portions. distinct.
- the shortest leakage path is understood to mean the path that a leakage current should travel on a wall of the internal chamber, the shortest between the two distinct conductor portions, and not to be confused with an arc path, which passes typically by the air contained in the internal chamber.
- the shortest escape path is the shortest continuous path along one or more walls of the internal chamber between the two separate conductor portions in contact with one or more walls of the internal chamber.
- the leakage current path may have a total length
- the part of the leakage current path over which which can be arranged or which can be covered by the insulating grease can have an isolated length
- a ratio of the isolated length to the total length can be included in a range going from 0.08 to 0.60, preferably from 0.18 to 0.48 and more preferably from 0.20 to 0.26.
- the opening member when moving from the initial position to the final position, can separate the part to be opened from the electrical conductor into at least two distinct conductor portions at the level of two internal ends forced to s '' move away from each other by the opening member when moving from the initial position to the final position, so as to be able to present, once the opening member in the final position, a free distance between the two internal ends, corresponding to an arc path, less than the total length of the leakage current path between the two separate conductor portions, and in particular less than the total length of the shortest leakage current path between the two separate driver portions.
- the movement of the opening member is sufficient to bend, bend, push, or move the two internal ends which are, in the final position, distant from each other by a sufficient distance to guarantee an extinction of. arc (in the air of the internal chamber) even if there is a strong current at the time of opening, but however less than the length of the leakage current path (on the wall (s) of the internal chamber), so that the management of an electric arc during opening is dissociated from the management of the insulation resistance after opening.
- the part of the conductor to be opened may have a width to be opened
- the opening member may have, in the direction of the width to be opened, an opening size greater than the width to be opened. This allows the leakage current path to be lengthened, increasing a perimeter of the internal chamber.
- the opening size can be 5%, 10% or even 20% greater than the width to be opened.
- an opening member movable and arranged to open a part to be opened of the internal electrical circuit during a movement between an initial position and a final position, so as to form at least two distinct conductor portions after opening
- a pyrotechnic actuator arranged to move the opening member from the initial position to the final position
- an insulating grease arranged in the internal chamber characterized in that the insulating grease is arranged on or covers at least two predetermined parts of the internal wall, at least when the opening member is in the initial position.
- the insulating grease when the opening member is in the initial position, can be collected on the path of the opening member between the initial position and the final position, and the opening member. can be arranged to move, or project, or spread at least part of the insulating grease during movement between the initial position and the final position.
- the insulating grease is deposited and / or spread in the form of a layer on the internal wall. It is possible to provide for depositing or spreading the insulating grease on the internal walls during the manufacture of the circuit breaker, but it is possible to provide for this application to be carried out during the operation of the circuit breaker.
- the opening member can perform such a removal or display operation.
- the insulating grease is placed in a housing, and when the internal electrical circuit is opened, the insulating grease is driven out of the housing to go and cover the two predetermined parts of the internal wall.
- a piston or lever system can be provided which causes the grease to be expelled from the housing: before opening, the insulating grease is confined in a dedicated housing or cavity, and after operation, the insulating grease is located on the two predetermined parts of the housing. the inner wall.
- one aspect of the invention relates to a pyrotechnic circuit breaker comprising:
- an opening member movable and arranged to open a part to be opened of the internal electrical circuit during a movement between an initial position and a final position, so as to form at least two distinct conductor portions after opening
- a pyrotechnic actuator arranged to move the opening member from the initial position to the final position
- an insulating grease arranged in the internal chamber characterized in that the insulating grease is arranged on or covers at least two predetermined parts of the internal wall, at least when the opening member is in the final position.
- a pyrotechnic circuit breaker comprising:
- connection terminals at least two connection terminals, - an internal electrical circuit connecting the two connection terminals and formed for example by an electrical conductor
- an opening member movable and arranged to open a part to be opened of the internal electrical circuit during a movement between an initial position and a final position, so as to form at least two distinct conductor portions after opening
- a pyrotechnic actuator arranged to move the opening member from the initial position to the final position
- an insulating grease arranged in the internal chamber characterized in that the insulating grease is arranged on or covers at least two predetermined parts of the internal wall, only when the opening member is in the final position.
- the pyrotechnic circuit breaker can comprise at least one guide unit with:
- the guide protuberance can be engaged in the guide groove to form the guide unit of the member of opening on the housing
- the guide groove can include at least a bottom or a side wall
- the insulating grease can be arranged on or can cover at least a part of the bottom or the side wall.
- the insulating grease is placed, spread out, arranged at the bottom of the groove, and / or in the groove, and / or on a lateral face of the groove.
- the guide unit may have a first guide part with a first clearance between the opening member and the housing, and a second guide part with a second clearance between the opening member. and the housing, greater than the first set, and the insulating grease can be arranged at the second guide part.
- the pyrotechnic circuit breaker may comprise at least one guide unit on each side of the opening member, in the direction of the width of the part to be opened of the electrical conductor.
- the guide protuberance may comprise at least one chamfer arranged to spread the insulating grease during movement between the initial position and the final position.
- the opening member can be arranged to open the part to be opened of the electrical conductor, so as to form at least three distinct conductor portions after opening, at least one of the three distinct conductor portions may form at least one central portion, two of the three distinct conductor portions may form two distinct lateral conductor portions, at least one leakage current path may from the central portion to each of the other two distinct lateral conductor portions, and once the opening member in the final position, said at least two predetermined parts can be arranged on or can pass through a part of said at least one leakage current path going from the central portion to one of the other two distinct lateral conductor portions .
- two leakage current paths can start from the central portion towards each of the two other distinct lateral conductor portions, and once the opening member is in the final position, said at least two predetermined parts can be arranged on or can cross a part of each of the two leakage current paths going from the central portion to one of the other two distinct lateral conductor portions. In other words, it suffices to cut all the leakage current paths between the central portion and one of the distinct lateral portions.
- said at least two predetermined parts can be arranged on or can pass through part of the four leakage current paths going from the central portion to the other two portions. separate driver sides.
- the leakage current path can be arranged on a wall of the internal chamber.
- the insulating grease can comprise silicone and / or polysiloxane.
- the opening member can be a cutting member, and preferably a shearing member.
- the part to be opened may be a continuous portion of an electrical conductor, to be cut by irreversible plastic deformation.
- the opening member may be a pushing member, arranged to move at least a portion of the part to be opened, in order to be able to break contact between two portions of conductors resting on one another. .
- an insulation resistance between the connection terminals may be greater than 30Mohms, preferably greater than SOMohms, preferably greater than 100Mohms, preferably greater than SOOMohms, and very preferably greater than IGohms.
- said at least part of the leakage current path covered by the insulating grease may have a length less than 13 mm, preferably less than 10 mm.
- the insulating grease when the opening member is in the initial position, can be contained in at least one closed envelope, preferably a closed envelope comprising at least two areas of weakness.
- the opening member can be arranged to break said at least one closed envelope during its displacement from the initial position to the final position.
- the grease thus remains confined in a closed volume until the device is ignited.
- the opening member may comprise a central protuberance arranged to separate two distinct volumes of the insulating grease, during its displacement from the initial position to the final position. This expels the fat to two predetermined parts of the inner wall as the cutting member moves.
- the internal wall at the level of said at least two predetermined parts, may have a roughness greater than Ra 1.6, and preferably greater than Ra 3.2.
- Another aspect of the invention relates to a motor vehicle comprising at least one circuit breaker according to the first aspect.
- FIG. 1 shows a sectional view of a pyrotechnic circuit breaker, comprising in particular a housing crossed by an electrical conductor forming an internal electrical circuit, a pyrotechnic actuator and an opening member arranged to open the internal electrical circuit when the pyrotechnic actuator is actuated or triggered;
- FIG. 2 shows a detail of the housing of the circuit breaker of FIG. 1;
- FIG. 3 shows a detail of the opening member of the circuit breaker of FIG. 1;
- FIG. 4 shows a detail of a section of the circuit breaker of FIG. 1 after actuation or triggering of the pyrotechnic actuator;
- fig. 5 schematically shows a sectional top view of the circuit breaker of Figure 1.
- FIG. 1 represents a circuit breaker comprising in particular:
- a housing 10 formed by a lower housing portion 12 and an upper housing portion 11,
- an opening member 40 movable and arranged to open a part to be opened 31A of the internal electrical circuit during a movement between an initial position (according to Figure 1) and a final position (according to Figure 4), so in forming at least two distinct conductor portions 32 and 33 (visible in FIG. 4) after opening,
- a pyrotechnic actuator 50 arranged to move the opening member 40 from the initial position to the final position
- an internal chamber 60 (comprising a lower chamber 62 and an upper chamber 61), defined by an internal wall formed in the housing 10, and receiving the part to be opened 31 A,
- Coolers 70 arranged inside the housing 10 and defined to lower the temperatures of the gases during operation and thus increase the cutting capacity of the circuit breaker.
- the circuit breaker of the figure is typically integrated in a power circuit of a motor vehicle (an electric vehicle for example) and can be used to cut the power circuit if an emergency situation arises.
- a motor vehicle an electric vehicle for example
- One of the functions of this circuit breaker is therefore to be able to cut a power circuit quickly, even if strong currents are present (more than 500 amps for example).
- Another function of this circuit breaker is to guarantee good insulation resistance between the connection terminals 21 and 22 after opening of the internal electrical circuit.
- the pyrotechnic actuator 50 (typically an electro-pyrotechnic igniter) is triggered and a high pressure is generated in the space between the pyrotechnic actuator 50 and the opening member 40, which pushes the latter upward in Figure 1, to move from the initial position shown to the final position in Figure 4.
- the opening member comes into contact with the part to be opened 31 A of the electrical conductor, and therefore opens the internal electrical circuit by cutting the electrical conductor 31, by mechanical shearing.
- the opening member 40 comprises two projections 41, separated by a groove 42, and which form knives for cutting the part to be opened 31 A.
- the part to be opened 31 A comprises a central portion supported by a return 13 of the upper housing portion 11, engaged with a bar 14 overmolded on the central portion of the part to be opened 31 A and secured to a body overmolded 15, overmolded on the electrical conductor 31.
- the projections 41 of the opening member 40 bear on the unsupported parts of the electrical conductor 31 and shear it right through. another of the bar 14 and of the return 13 (at the level of the part to be opened 31 A opposite the upper chamber 61).
- the shear of the electrical conductor 31 forms:
- Figures 2 and 3 show the mounting of the opening member 40 in the housing 10, and in particular, guide units are provided between the opening member 40 and the housing 10, at the level of the molded body 15 Indeed, the opening member ( Figure 3) is provided with side projections 43 forming guide protrusions, and the overmolded body 15 with side grooves 613 forming guide grooves, formed in side walls 611 of the superior room 61.
- the opening member 40 is therefore mounted in a sliding connection or in translation with respect to the housing 10 and slides during its displacement from the initial position to the final position, which provides an operation and a final position which are reproducible and controlled to guarantee rapid opening and arc extinction at the end of operation with a sufficient free distance.
- the operation of the pyrotechnic actuator 50 can generate numerous particles and hot gases which are projected into the internal chamber 60, and which typically cover or condense on the walls of the latter, and in particular the walls 611, the projections side 43 and side grooves 613.
- Such deposits can form a conductive or weakly conductive layer of electricity, and an insulation resistance, after opening of the electrical conductor 31, can be affected.
- Such an insulation resistance, measured after operation, between the connection terminals 21 and 22 must be high, to ensure that there is no leakage current between the connection terminals 21 and 22 after opening of the internal electrical circuit of the circuit breaker.
- Such leakage currents typically travel through leakage current paths between the separate conductor portions after opening, which travel along the internal wall of the internal chamber 60.
- FIG. 5 shows a schematic section (therefore not showing all the details of FIG. 1) of the circuit breaker of FIG. 1 after opening, in a plane passing through the upper face of the electrical conductor 31, seen from above.
- the electrical conductor 31 has therefore been opened in three distinct conductor portions, that is to say two distinct lateral portions 32 and a central portion 33.
- the central portion 33 is separated from the two distinct lateral portions 32 by the lateral projections 43. of the opening member 40.
- Detail A and detail B of Figure 5 show that a leakage current can travel a CCF leakage current path formed along the inner wall of the inner chamber, between the lower corner 32A of the side distinct portion 32 and the lower corner 33A of the central portion 33.
- the function of providing good insulation resistance is to be provided after operation, once the electrical conductor 31 has been cut or opened.
- a leakage current cannot build up along the TA arc path because the air resistivity is too great. Consequently, a leakage current can only travel along the walls of the circuit breaker, in particular the internal walls of the internal chamber 60 or the walls of the opening member 40, and that on the shortest path, which has the lowest insulation resistance.
- insulating grease 70 In order to guarantee good insulation resistance, it is proposed to position on the internal wall (and / or on the walls of the opening member 40) insulating grease 70 so as to cut the leakage current path. , and preferably the shortest leakage current path. In general, it is proposed to arrange insulating grease 70 on at least part of the CCF leakage current path. Preferably, it is proposed to arrange insulating grease on at least two predetermined parts of the internal wall of the internal chamber 60.
- insulating grease 70 is placed on the CCF leakage current path, so as to cut it over a limited portion. As a result, the leakage current can no longer pass, which guarantees good insulation resistance.
- the insulation resistance between the connection terminals is greater than 30Mohms, preferably greater than 50Mohms, preferably greater than lOOMohms, preferably greater than 500Mohms, and very preferably greater than IGohms. This is because the insulating grease 70 prevents the leakage current from building up, even if particles or condensed gases are deposited on the inner wall of the inner chamber.
- insulating grease is placed on four predetermined portions of the inner wall of the inner chamber 60 so that all CFF leakage current paths from the center portion 33 are cut at least in one. place. As shown in Figure 5, the insulating grease 70 is placed on either side of the opening member 40, in a vertical direction (transverse to the direction of travel).
- FIG. 5 a section at the level of the electrical conductor 31, contains in this example the shortest leakage path, that shown in detail B. However, it is expected that insulating grease will be placed above, below and at the top. level of the electrical conductor 31 (along an axis normal to FIG. 5 therefore) to ensure that all the leakage current paths having a length at [0%; + 15%] of the length of the shortest leakage current path are also cut off.
- the insulating grease 70 is positioned on the parts of the internal wall forming the bottom of the lateral groove 613, which allows localized and simultaneous application on the internal wall of the internal chamber and on the wall of the lateral projections 43 of the opening member 40, which guarantees an effective cut-off of all possible leakage current paths.
- the insulating grease 70 could be positioned on another surface of the lateral groove 613.
- the insulating grease 70 is placed on delimited parts of the internal wall, and not on the entire internal wall, because the Applicant has noticed that this limits the influences on the breaking times. Indeed, tests with insulating grease on the entire internal wall of the internal chamber 60 have been carried out, with a cut-out time of up to 0.3 ms, and tests with the same conditions, but with insulating grease 70 only on the predetermined parts shown in FIG. 5 have been produced, with an outage time of less than 0.2 ms. In general, the insulating grease 70 is therefore provided only at the predetermined locations described, and is not found on the rest of the walls of the chamber, nor on the electrical conductor 31 before cutting, or the separate conductor portions 33, 32 after cut.
- the areas where the electrical conductor 31 is cut by the opening member 40 are free from insulating grease 70.
- two possibilities of positioning the insulating grease 70 on the predetermined parts are offered: positioning the insulating grease 70 on the predetermined parts directly when mounting the circuit breaker, or else provide that the insulating grease 70 is placed or moved or projected onto the predetermined parts during the operation of the circuit breaker.
- FIG. 5 To identify where the insulating grease 70 is placed as soon as the circuit breaker is fitted: on the internal wall of the internal chamber 60, on either side of the opening member 40, and on either side and at the level of the driver electrical 31 (that is to say in the lower chamber 62, in the upper chamber 61, and at the level of the edge of the electrical conductor 31).
- the insulating grease 70 can be chosen from silicone greases (containing siloxanes or poly-siloxanes). A thickness of at least 0.1 mm can be provided on each predetermined part of the internal wall over a width of at least 1 mm, or 2 mm, and over a length (or height in FIG. 1) of at least 5 mm, and preferably at least 7 mm. Referring to Figures 2 and 3, one can provide insulating grease 70 on at least 80% of the bottom of the groove 613, and at least 80% of the surface of the side projection 43.
Landscapes
- Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21739319.8A EP4176458A1 (fr) | 2020-07-02 | 2021-07-01 | Coupe circuit pyrotechnique |
JP2022580288A JP2023532476A (ja) | 2020-07-02 | 2021-07-01 | 火工式回路遮断器 |
KR1020237003556A KR20230028555A (ko) | 2020-07-02 | 2021-07-01 | 불꽃 회로 차단기 |
US18/003,636 US20230260726A1 (en) | 2020-07-02 | 2021-07-01 | Pyrotechnic circuit breaker |
CN202180059165.4A CN116134575A (zh) | 2020-07-02 | 2021-07-01 | 烟火断路器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2007024 | 2020-07-02 | ||
FR2007024A FR3112235B1 (fr) | 2020-07-02 | 2020-07-02 | Coupe circuit pyrotechnique |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022003080A1 true WO2022003080A1 (fr) | 2022-01-06 |
Family
ID=72801661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/068114 WO2022003080A1 (fr) | 2020-07-02 | 2021-07-01 | Coupe circuit pyrotechnique |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230260726A1 (fr) |
EP (1) | EP4176458A1 (fr) |
JP (1) | JP2023532476A (fr) |
KR (1) | KR20230028555A (fr) |
CN (1) | CN116134575A (fr) |
FR (1) | FR3112235B1 (fr) |
WO (1) | WO2022003080A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7417884B1 (ja) | 2023-04-26 | 2024-01-19 | パナソニックIpマネジメント株式会社 | 遮断装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4852494A (en) * | 1987-11-16 | 1989-08-01 | Williams Robert A | Explosively actuated switch |
US20130175144A1 (en) | 2010-08-27 | 2013-07-11 | Auto Kabel Managementgesellschaft Mbh | Electrical Disconnecting Device and Method for the Electrical Isolation of Connecting Parts with the Aid of a Disconnecting Device |
DE102012013491B3 (de) * | 2012-07-09 | 2013-09-26 | Auto-Kabel Managementgesellschaft Mbh | Elektrische Trennvorrichtung mit Sensorüberwachung |
FR3017240A1 (fr) * | 2014-02-04 | 2015-08-07 | Ncs Pyrotechnie & Tech | Coupe-circuit pyrotechnique |
-
2020
- 2020-07-02 FR FR2007024A patent/FR3112235B1/fr active Active
-
2021
- 2021-07-01 EP EP21739319.8A patent/EP4176458A1/fr active Pending
- 2021-07-01 US US18/003,636 patent/US20230260726A1/en active Pending
- 2021-07-01 JP JP2022580288A patent/JP2023532476A/ja active Pending
- 2021-07-01 KR KR1020237003556A patent/KR20230028555A/ko unknown
- 2021-07-01 WO PCT/EP2021/068114 patent/WO2022003080A1/fr active Application Filing
- 2021-07-01 CN CN202180059165.4A patent/CN116134575A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4852494A (en) * | 1987-11-16 | 1989-08-01 | Williams Robert A | Explosively actuated switch |
US20130175144A1 (en) | 2010-08-27 | 2013-07-11 | Auto Kabel Managementgesellschaft Mbh | Electrical Disconnecting Device and Method for the Electrical Isolation of Connecting Parts with the Aid of a Disconnecting Device |
DE102012013491B3 (de) * | 2012-07-09 | 2013-09-26 | Auto-Kabel Managementgesellschaft Mbh | Elektrische Trennvorrichtung mit Sensorüberwachung |
FR3017240A1 (fr) * | 2014-02-04 | 2015-08-07 | Ncs Pyrotechnie & Tech | Coupe-circuit pyrotechnique |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7417884B1 (ja) | 2023-04-26 | 2024-01-19 | パナソニックIpマネジメント株式会社 | 遮断装置 |
Also Published As
Publication number | Publication date |
---|---|
FR3112235B1 (fr) | 2023-03-24 |
FR3112235A1 (fr) | 2022-01-07 |
EP4176458A1 (fr) | 2023-05-10 |
US20230260726A1 (en) | 2023-08-17 |
CN116134575A (zh) | 2023-05-16 |
KR20230028555A (ko) | 2023-02-28 |
JP2023532476A (ja) | 2023-07-28 |
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