EP4186086A1 - Coupe circuit pyrotechnique - Google Patents
Coupe circuit pyrotechniqueInfo
- Publication number
- EP4186086A1 EP4186086A1 EP21743439.8A EP21743439A EP4186086A1 EP 4186086 A1 EP4186086 A1 EP 4186086A1 EP 21743439 A EP21743439 A EP 21743439A EP 4186086 A1 EP4186086 A1 EP 4186086A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circuit breaker
- plastic material
- flame retardant
- breaker according
- pyrotechnic
- 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.)
- Granted
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
-
- 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
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts
Definitions
- the present invention generally relates to a pyrotechnic circuit breaker intended to be mounted on a motor vehicle, and in particular in an electrical power circuit of a motor vehicle, for example a hybrid vehicle or an electric vehicle.
- Circuit breaker devices are known in the prior art, such as that described in document US20130175144, which proposes using an insulating material that can flow.
- this system has in particular the disadvantage of requiring a lot of insulating material which can creep, which requires large quantities, can generate leaks.
- precautions and authorizations will be necessary for automotive use (due to incompatibility with paint, for example).
- WO2020099486A1 discloses a pyrotechnic circuit breaker with an internal wall made of plastic material which may contain reinforcing fibers, such as glass fibers. With such a device, the applicant realized that the insulation resistances after operation might not be sufficient to meet specific or severe demands.
- An object of the present invention is to respond to the drawbacks of the prior art mentioned above and in particular, first of all, to propose a pyrotechnic circuit breaker that is simple to manufacture, having high cutting capacities, a fast opening when operating, and good insulation resistance after opening.
- a first 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 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
- an internal chamber receiving the part to be opened, characterized in that the internal chamber comprises or contains at least one internal surface formed by a wall formed with a plastic material comprising a flame retardant.
- the circuit breaker comprises a wall arranged in the internal chamber, that is to say facing the part to be cut, and which contains a flame retardant.
- the applicant has noticed that the insulation resistances after operation were higher than those measured on circuit breakers having the same geometric configuration, but no material with a flame retardant. In other words, provide a flame retardant in the material of one of the walls exposed to the electric arc formed during the cut makes it possible to significantly reduce leakage currents once the cut has been made.
- the internal chamber comprises or contains at least one internal surface formed by a wall formed:
- a plastic material comprising an additive chosen to be a flame retardant.
- the flame retardant additive is directly integrated or incorporated into the granules which are going to be melted in order to be used, for example, to inject the surface of the wall into the internal chamber.
- said plastic material comprising the flame retardant can be a polymer, such as a polyamide, and preferably a polyphthalamide (PA 6T/66).
- said plastic material comprising the flame retardant can be a polymer forming a matrix, and comprising a filler material, such as fibers, preferably inorganic fibers, for example glass fibers, in a proportion ranging from 10% to 70% by weight and preferably in a proportion ranging from 45% to 55% by weight.
- a filler material such as fibers, preferably inorganic fibers, for example glass fibers
- said plastic material comprising the flame retardant can self-extinguish after 10 seconds, during a flammability test according to standard UL94 (6th edition of March 28, 2013) carried out on a vertical specimen, particle losses being allowed as long as the lost particles are not ignited.
- the flame retardant can be a non-halogenated compound, selected from:
- the flame retardant may be a non-halogenated compound, selected from the following compounds and their mixtures: melamine cyanurate, melamine phosphate, melamine pyrophosphate, melamine polyphosphate, melem phosphate (i.e. i.e. 2,5,8-triaminoheptazine phosphate), melem pyrophosphate, dimelamine pyrophosphate, dimelamine phosphate, melem polyphosphate, phosphaphenanthrenes, metal hydroxides, salts of phosphinic acid, salts of diphosphinic acid.
- melamine cyanurate melamine phosphate
- melamine pyrophosphate melamine polyphosphate
- melem phosphate i.e. i.e. 2,5,8-triaminoheptazine phosphate
- melem pyrophosphate dimelamine pyrophosphate
- dimelamine phosphate dimelamine phosphate
- melem polyphosphate
- the pyrotechnic circuit breaker can comprise a base part formed by a second plastic material, and said plastic material comprising the flame retardant can be attached or overmolded on the base part.
- the opening member may comprise:
- an exposed face formed by the plastic material comprising the flame retardant overmoulded or attached to the opening body and arranged opposite the part to be opened and/or on the side of the internal chamber.
- said second material may be a polyamide, preferably a polyphthalamide (PA 6.T/XT) forming a matrix, and possibly comprising glass fibers, in a proportion ranging from 40% to 50% by weight .
- PA 6.T/XT polyphthalamide
- the second material makes it possible to provide a robust opening body which is resistant to mechanical stresses.
- the pyrotechnic circuit breaker can be arranged to generate an electric arc between the two separate conductor portions when the opening member moves between the initial position and a final position, when the circuit breaker is connected to a live electrical circuit, and the plastic material comprising the flame retardant can be arranged to be removed by ablation by the electric arc.
- the plastic material comprising the flame retardant arranged to be removed by ablation is transformed (for example sublimated) under the action of the intense heat flux of the electric arc. This material removed by ablation can then condense or deposit on the walls of the internal chamber, and this provides high insulation resistances.
- such an implementation can modify the composition of the electric arc plasma and its conductivity, and makes it possible to increase the electric arc voltage.
- Such electric arcs can be created when the circuit breaker is connected to a live electrical circuit, with voltages ranging from 0V to 1000V and currents ranging from 0A to 25000A on inductive loads of up to 2500mH (micro-Henry ) for an intensity lower than 500A and up to 5mH for an intensity of 25000A.
- the circuit breaker according to the invention makes it possible to cut the current reliably in less than 10 ms and even less than 5ms, definitively, because the circuit breaker, comprising a pyrotechnic actuator, can only be used once. When used, the circuit breaker also has good insulation resistance.
- the pyrotechnic circuit breaker may comprise at least one passage arranged to guide the electric arc between the two separate conductor portions, and the plastic material comprising the flame retardant may be arranged to form or delimit at least partially the passage.
- the plastic material comprising the flame retardant is necessarily exposed to the electric arc.
- the passage can be at least partially formed on the opening member.
- the internal chamber can comprise or contain at least one wall formed with a third plastic material comprising silicone.
- at least one other wall of the internal chamber comprises silicone.
- the pyrotechnic circuit breaker can comprise at least one support, and the third plastic material comprising silicone can be overmolded or attached to the support.
- the third plastic material comprising silicone can be overmolded or attached to the support.
- the support may comprise a portion of the electrical conductor. According to one embodiment, the support may comprise a portion of the casing.
- the support may comprise a portion of the opening member.
- the wall formed with the third plastic material comprising silicone can support a leakage current path between the two separate conductor portions after opening, and preferably the shortest leakage current path between the two separate conductor portions after opening.
- the wall formed with the third plastic material comprising silicone can cover less than 50% of a total surface of the internal chamber. Such an implementation makes it possible to limit the use or addition of silicone only where this will have a noticeable effect on the insulation resistances.
- the third plastic material comprising silicone may comprise a polymer of polyamide type, preferably a polyphthalamide of the PA6T/XT type.
- the third plastic material comprising silicone can comprise silicone and/or polysiloxane, in a proportion ranging from 3.5% to 6.5% by weight, and preferably from 4.25% to 5.75% by weight.
- an insulation resistance between the connection terminals can be greater than 30Mohms, preferably greater than SOMohms, preferably greater than 100Mohms, preferably greater than 500Mohms, and very preferably greater than IGohms.
- Another aspect of the invention relates to a method of manufacturing a circuit breaker according to the first aspect, comprising the steps consisting in:
- - providing a mobile opening member 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, - providing a pyrotechnic actuator arranged to move the opening member from the initial position to the final position,
- the method comprises a step consisting in forming the internal chamber with at least one wall formed with a plastic material comprising silicone, by adding to a first raw material, for example in granules, intended to form the internal chamber a second raw material, for example in granules, comprising between 40% and 60% by weight of silicone.
- the method according to the invention comprises a step consisting in mixing, before the manufacture of the internal chamber, the first raw material, for example in granules, intended to form the internal chamber, with the second raw material, for example in granules, comprising between 40% and 60% by weight of silicone.
- the wall comprising the silicone is formed by an injection-molding process, and the manufacturing process includes a step of preparing the material to be injected by mixing two types of granules: the first raw material and the second raw material which contains silicone. There is therefore no pure silicone to provide or handle, just solid granules already comprising the silicone.
- 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 casing through which an electrical conductor passes 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 case of the circuit breaker of FIG. 1;
- FIG. 3 shows a detail of the circuit breaker opening member 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 represents a section in top view of the circuit breaker of FIG. 1. Detailed description of embodiment(s)
- 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,
- connection terminals 21 and 22 an internal electrical circuit connecting the two connection terminals 21 and 22 and formed by an electrical conductor 31,
- an opening member 40 movable and arranged to open a part to be opened 31 A of the internal electrical circuit when moving between a position initial position (according to figure 1) and a final position (according to figure 4), so as to form at least two separate conductor portions 32 and 33 (visible in figure 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 one or more internal wall(s) formed in the casing 10, and receiving the part to be opened 31 A,
- - 70 coolers arranged inside the housing 10 and defined to lower the gas temperatures during operation and thus increase the cutting capacity of the circuit breaker.
- the circuit breaker of FIG. 1 is typically integrated into a power circuit of a motor vehicle (an electric vehicle for example) and can be used to cut off 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 off 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 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 strong pressure is generated in the space between the pyrotechnic actuator 50 and the opening member 40, which pushes the latter upwards in figure 1, to go from the initial position shown to the final position in figure 4.
- the opening member 40 comes into contact with the part to be opened 31A of the electrical conductor, and therefore opens the internal electrical circuit by cutting the electrical conductor 31, by mechanical shearing. It is however possible to provide an alternative way of opening by pushing one of two strands initially distinct and in contact with each other, to separate them.
- the opening member 40 comprises two projections 45, separated by a groove 46, and which form knives to cut the part to be opened 31A.
- the part to be opened 31 A comprises a central portion supported by a return 13 of the upper casing portion 11 , engaged with a strip 14 molded onto the central portion of the part to be opened 31 A and integral with a molded body 15, molded onto the electrical conductor 31 .
- the projections 45 of the opening member 40 bear on the unsupported parts of the electrical conductor 31 and shear it from side to side. other of the bar 14 and the return 13 (at the level of the part to be opened 31 A facing the upper chamber 61). It is however possible to provide alternatively to have a single projection 45 or more than two projections 45, the number of projections 45 defining the number of cutouts made on the electrical conductor 31 during the movement of the opening member 40.
- an electric arc can form (depending on whether current crosses the electrical conductor 31 or not) between each internal end 34 and the central portion 33, at the level of an arc path TA shown in dotted lines in FIG. 4.
- the opening member 40 pushes and causes each distinct part lateral 32, so that the arc path TA "stretch” or "lengthen” to present, at the end of operation, a sufficient free distance to guarantee extinction of the electric arc and rapid breaking or opening of the internal electrical circuit.
- 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 40 (FIG. 3) is provided with lateral projections 43 forming guide protuberances, and the molded body 15 with lateral grooves 613 forming guide grooves, formed in the side walls 611 of the upper chamber 61 (visible in Figure 2).
- the opening member 40 is therefore mounted in sliding connection or in translation relative to the housing 10 and slides during its movement from the initial position to the final position, which provides reproducible and controlled operation and final position to guarantee rapid opening and arc extinction at the end of operation with 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 lateral 43 and the lateral grooves 613.
- Such deposits can form an electrically conductive or weakly conductive layer, and an insulation resistance, after opening of the electrical conductor 31, can be affected.
- the electric arc can remove by ablation material from the opening member 40 and/or from the housing 10 (return 13 or bar 14 in particular), which can generate gases or particles which will also cover and /or condense on the walls of the internal chamber 60 and also affect the insulation resistance.
- connection terminals 21 and 22 Such an insulation resistance, measured after operation, between the connection terminals 21 and 22 must be high, to guarantee the absence of leakage current between connection terminals 21 and 22 after opening of the internal electrical circuit of the circuit breaker.
- leakage currents typically travel through leakage current paths between the separate conductor portions after opening, which travel along the inner wall of the inner chamber 60.
- Figure 5 shows a schematic section (thus not showing all the details of Figure 1) of the circuit breaker of Figure 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 into 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 45 of the opening member 40.
- Detail A and detail B of Figure 5 show that leakage current can travel along a CCF leakage current path formed along the inner wall of inner chamber 60, particularly between lower corner 32A of portion distinct side 32 and the lower corner 33A of the central portion 33 which is the shortest leakage current path.
- the function of providing good insulation resistance is to be ensured after operation, once the electrical conductor 31 has been cut or opened.
- a leakage current cannot be established along the arc path TA because the resistivity of the air is too high. 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 this preferably on the path most short, which has the lowest insulation resistance.
- the CCF leakage current path travels or extends along the wall of the internal chamber 60.
- the insulation resistance between the connection terminals is greater than 30Mohms, preferably greater than SOMohms, preferably greater than 100Mohms, preferably greater than SOOMohms, and very preferably greater than IGohms, even if particles or condensed gases have deposited on the internal wall of the internal chamber.
- a wall formed with a plastic material comprising a flame retardant in order to guarantee good insulation resistance, it can be, in a first alternative, proposed to provide in the internal chamber 60 a wall formed with a plastic material comprising a flame retardant.
- a flame retardant in particular in a wall forming a surface exposed to the electric arc during the operation of the circuit breaker, makes it possible to significantly increase the resistances of isolation after operation.
- the plastic material comprising the flame retardant may typically be a polyamide, and preferably a polyphthalamide (such as PA 6T/66). It is possible to provide reinforcing fibers, for example glass fibers in a ratio of 45% to 55% by weight.
- the flame retardant is typically a non-halogenated compound, selected from the following materials and their mixtures:
- the flame retardant can be a non-halogenated compound, selected from the following compounds and their mixtures: melamine cyanurate, melamine phosphate, melamine pyrophosphate, melamine polyphosphate, melem phosphate, melem pyrophosphate, dimelamine pyrophosphate, dimelamine phosphate, melem polyphosphate, phosphaphenanthrenes, metal hydroxides, salts of phosphinic acid, salts of diphosphinic acid.
- a non-halogenated compound selected from the following compounds and their mixtures: melamine cyanurate, melamine phosphate, melamine pyrophosphate, melamine polyphosphate, melem phosphate, melem pyrophosphate, dimelamine pyrophosphate, dimelamine phosphate, melem polyphosphate, phosphaphenanthrenes, metal hydroxides, salts of phosphinic acid, salts of diphosphinic acid.
- the plastic material comprising the flame retardant can comprise the flame retardant between 2% and 30% by mass, and preferably between 5% and 30% by mass and more preferentially between 8% and 25% by mass.
- the flame retardant may also comprise at least one synergist (or synergistic compound, which further improves the resistance to ignition), said at least one synergist being chosen from the group consisting of compounds containing nitrogen, compounds containing nitrogen and phosphorus, metal borates, metal carbonates, metal hydroxides, metal hydroxyoxides, metal nitrides, metal oxides, metal phosphates, metal sulphides, metal stannates, metal hydroxystannates, silicates, zeolites, basic zinc silicates, silicic acids and their combinations, in particular triazine derivatives, melamine, guanidine, guanidine derivatives, biuret, triuret, tartrazine, glycoluril, acetoguanamine, butyroguanamine, caprinoguanamine, benzoguanamine, melamine derivatives of cyanuric acid, melamine derivatives of acid isocyanuric acid, melamine cyanurate, melamine condensates, mel
- the plastic material comprising the flame retardant extinguishes itself after 10 seconds, during a flammability test conducted according to the UL94 standard (6th edition of March 28, 2013) and carried out on a test specimen.
- vertical particle losses being allowed as long as the lost particles are not ignited.
- the length of the sample is 5" (127 mm) and its width is 0.5" (12.7 mm). Its thickness must not exceed 0.5' (12.7mm). It is fixed at 1/4 of its upper end in a vertical position.
- a wire mesh covered with surgical cotton is placed 12" (305 mm) below the sample.
- the burner is set to form a 3/4" (19 mm) blue flame. This flame is directed from below onto the lower edge of the plastic sample at a distance of 3/8" (9.5 mm).
- the tested material is classified UL 94 V-0 if:
- the opening member 40 can be provided with an opening body 41 (forming a base part), over which is molded an exposed face 42, formed with the plastic material comprising the flame retardant.
- the plastic material comprising the flame retardant could be provided at another wall opening into the internal chamber, such as on the casing 10 or on the molded body 15.
- the base part that is to say here the opening body 41 can be a second plastic material, such as a polyamide, preferably a polyphthalamide such as PA 6.T/XT forming a matrix, and comprising glass fibers, in a proportion ranging from 40% to 50% by weight.
- a second plastic material such as a polyamide, preferably a polyphthalamide such as PA 6.T/XT forming a matrix, and comprising glass fibers, in a proportion ranging from 40% to 50% by weight.
- the insulation resistances after opening are significantly higher with parts whose chamber internal comprises a surface exposed to the electric arc formed by the material comprising the flame retardant, than on the reference parts not comprising the flame retardant.
- the plastic material containing the flame retardant is positioned as close as possible to the arc path TA, and for this purpose there is provided a passage 44 on the opening member 40 to guide the electric arc. , the passage 44 being formed directly in the plastic material containing the flame retardant.
- the passage 44 is a small-sized groove (a few tenths of a millimeter in width and/or depth) made in the plastic material containing the flame retardant, to provide a free space even when the opening member 40 is in the final position in abutment on the return 13, so that an electric arc will preferentially pass through this passage 44 and will remove by ablation the plastic material containing the flame retardant.
- the third plastic material comprising silicone comprises a polymer of polyamide type, preferably a polyphthalamide, such as PA6T/XT.
- the third plastic material comprising silicone comprises silicone and/or polysiloxane, in a proportion ranging from 3.5% to 6.5% by weight, and preferably from 4.25% to 5.75% by weight.
- the third plastic material comprising the silicone
- circuit breakers with a wall of the internal chamber comprising flame retardant (the exposed face 42 of the opening member 40) and another wall comprising silicone (in the overmolded body 15), and the results are reported in Table 5.
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- Compositions Of Macromolecular Compounds (AREA)
- Fuses (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2007814A FR3112888B1 (fr) | 2020-07-24 | 2020-07-24 | Coupe circuit pyrotechnique |
| PCT/EP2021/069262 WO2022017841A1 (fr) | 2020-07-24 | 2021-07-12 | Coupe circuit pyrotechnique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4186086A1 true EP4186086A1 (fr) | 2023-05-31 |
| EP4186086B1 EP4186086B1 (fr) | 2026-05-06 |
Family
ID=74125277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21743439.8A Active EP4186086B1 (fr) | 2020-07-24 | 2021-07-12 | Coupe circuit pyrotechnique et véhicule automobile comprenant un tel coupe-circuit |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US12278068B2 (fr) |
| EP (1) | EP4186086B1 (fr) |
| JP (1) | JP2023534994A (fr) |
| KR (1) | KR20230039743A (fr) |
| CN (1) | CN116075916A (fr) |
| FR (1) | FR3112888B1 (fr) |
| WO (1) | WO2022017841A1 (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3112889A1 (fr) * | 2020-07-24 | 2022-01-28 | Ncs Pyrotechnie Et Technologies Sas | Coupe circuit pyrotechnique |
| JP7558817B2 (ja) * | 2021-01-08 | 2024-10-01 | 株式会社ダイセル | 電気回路遮断装置 |
| JP2023118589A (ja) * | 2022-02-15 | 2023-08-25 | 株式会社ダイセル | 電気回路遮断装置 |
| FR3154537B1 (fr) * | 2023-10-20 | 2025-12-12 | Ncs Pyrotechnie Et Tech | Coupe-circuit pyrotechnique |
| WO2025131748A1 (fr) * | 2023-12-20 | 2025-06-26 | Solvay Specialty Polymers Usa, Llc | Coupe-circuit pyrotechnique comprenant une composition polymère à base d'un polyphtalamide |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20140011925A1 (en) * | 2012-07-03 | 2014-01-09 | E I Du Pont De Nemours And Company | Halogen free flame retardant polyamide composition |
| FR3017240B1 (fr) * | 2014-02-04 | 2016-01-29 | Ncs Pyrotechnie Et Tech Sas | Coupe-circuit pyrotechnique |
| JP6344281B2 (ja) * | 2015-03-26 | 2018-06-20 | 豊田合成株式会社 | 導通遮断装置 |
| AT517872B1 (de) * | 2015-10-19 | 2017-08-15 | Hirtenberger Automotive Safety Gmbh & Co Kg | Pyrotechnische Trennvorrichtung |
| US10424448B2 (en) * | 2016-02-04 | 2019-09-24 | Tesla, Inc. | Pyrotechnic disconnect with arc splitter plates |
| DE102016124176A1 (de) * | 2016-12-13 | 2017-01-26 | Peter Lell | Elektrisches Unterbrechungsschaltglied, insbesondere zum Unterbrechen von hohen Strömen bei hohen Spannungen |
| WO2018117834A1 (fr) * | 2016-12-22 | 2018-06-28 | Dsm Ip Assets B.V. | Compositions de résine thermoplastique résistantes à la chaleur et à l'électricité améliorées |
| WO2019154463A1 (fr) * | 2018-02-09 | 2019-08-15 | Peter Lell | Élément de disjoncteur doté d'un circuit principal et un circuit de courant auxiliaire |
| EP3546510A1 (fr) * | 2018-03-26 | 2019-10-02 | LANXESS Deutschland GmbH | Compositions de polyamide |
| FR3088592B1 (fr) * | 2018-11-15 | 2022-03-25 | Livbag Sas | Dispositif de securite pour circuit-electrique de vehicule |
| FR3088772B1 (fr) * | 2018-11-16 | 2020-11-06 | Livbag Sas | Dispositif pyrotechnique avec boitier plastique |
| FR3098006B1 (fr) * | 2019-06-25 | 2021-07-09 | Mersen France Sb Sas | Coupe-circuit électrique |
-
2020
- 2020-07-24 FR FR2007814A patent/FR3112888B1/fr active Active
-
2021
- 2021-07-12 KR KR1020237006260A patent/KR20230039743A/ko active Pending
- 2021-07-12 US US18/006,102 patent/US12278068B2/en active Active
- 2021-07-12 CN CN202180055487.1A patent/CN116075916A/zh active Pending
- 2021-07-12 EP EP21743439.8A patent/EP4186086B1/fr active Active
- 2021-07-12 JP JP2023504127A patent/JP2023534994A/ja active Pending
- 2021-07-12 WO PCT/EP2021/069262 patent/WO2022017841A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3112888A1 (fr) | 2022-01-28 |
| WO2022017841A1 (fr) | 2022-01-27 |
| EP4186086B1 (fr) | 2026-05-06 |
| CN116075916A (zh) | 2023-05-05 |
| US12278068B2 (en) | 2025-04-15 |
| JP2023534994A (ja) | 2023-08-15 |
| FR3112888B1 (fr) | 2023-03-24 |
| US20230290596A1 (en) | 2023-09-14 |
| KR20230039743A (ko) | 2023-03-21 |
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