EP3920331B1 - Dispositif de protection et véhicule ferroviaire doté d'un dispositif de protection - Google Patents

Dispositif de protection et véhicule ferroviaire doté d'un dispositif de protection Download PDF

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Publication number
EP3920331B1
EP3920331B1 EP21175050.0A EP21175050A EP3920331B1 EP 3920331 B1 EP3920331 B1 EP 3920331B1 EP 21175050 A EP21175050 A EP 21175050A EP 3920331 B1 EP3920331 B1 EP 3920331B1
Authority
EP
European Patent Office
Prior art keywords
rib
base plate
protection apparatus
layer
edge
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.)
Active
Application number
EP21175050.0A
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German (de)
English (en)
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EP3920331A1 (fr
Inventor
André BIALOSCEK
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.)
Alstom Holdings SA
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Alstom Holdings SA
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Filing date
Publication date
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Publication of EP3920331A1 publication Critical patent/EP3920331A1/fr
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Publication of EP3920331B1 publication Critical patent/EP3920331B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H01Q1/422—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising two or more layers of dielectric material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • B61C17/04—Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/10—Floors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle

Definitions

  • the invention relates to a protective device and a rail vehicle with a protective device.
  • ECS European Train Control System
  • the publication EP 3 462 535 A1 describes a protective element for an antenna that is attached to an underbody of a rail vehicle.
  • the protective element is frame-shaped and has a front wall and a rear wall, which protect the antenna, for example, from flying gravel.
  • a frame-shaped lower wall surrounding an opening is also provided.
  • the antenna is held on the underframe of the rail vehicle by the protective element.
  • the protective element is made, for example, from a glass fiber reinforced polyester. The disadvantage here is that if a crack occurs, the progression of the crack cannot be stopped.
  • the publication CN 208001001 U discloses an antenna protection housing that surrounds the antenna in a trough shape.
  • the antenna protection housing is made of fiber-reinforced plastic.
  • the publication CN 209766639 U discloses an antenna unit for use on high-speed rail vehicles that can be exposed to adverse environmental conditions. This is what an antenna is for arranged between two shells and the remaining cavities filled with a polyester foam.
  • the invention is therefore based on the object of creating a protective device and a rail vehicle with a protective device with which the progression of cracks within the protective device can be stopped.
  • An advantage of the invention is that the intermediate layer with the honeycombs stops crack progression.
  • the first cover layer and the second cover layer stabilize the intermediate layer. Additive manufacturing enables the protective device to be designed in one piece.
  • a rib is arranged on the second cover layer, with four ribs in particular being arranged parallel to one another on the second cover layer.
  • the rib gives the base plate a high level of stability.
  • the sandwich structure may be thinner than when no rib is present. This means that material and costs can be saved with the sandwich structure.
  • a first rib is arranged on a first edge of the base plate and/or a second rib is arranged on a second edge of the base plate. This mechanically reinforces the first edge and the second edge. A damage to the first Edge and/or the second edge would be particularly critical and could lead to the base plate breaking.
  • an intermediate rib is arranged between the first rib and the second rib, which in particular has a second width that is larger than a first width of the first rib and the second rib and/or has the same thickness as the first rib and the second rib .
  • the intermediate rib increases the mechanical security of the base plate between the first rib and the second rib.
  • the geometry of the intermediate rib is therefore variable compared to the geometry of the first rib and the second rib.
  • a third rib can be arranged on a third edge of the base plate and / or a fourth rib on a fourth edge of the base plate, wherein the third rib and / or the fourth rib is arranged perpendicular to the first rib and the second rib.
  • the third edge and/or the fourth edge are also mechanically reinforced.
  • first rib, the second rib, the third rib and the fourth rib can have the same second thickness and/or the same first width. This achieves uniform stability of the base plate and simplifies the production of the protective device.
  • the base plate can have elongated holes which are arranged between the first rib and the intermediate rib and/or between the second rib and the intermediate rib, the elongated holes being arranged in particular in a row and parallel to the intermediate rib.
  • the elongated holes enable drainage and pressure equalization.
  • the intermediate layer follows a radius on the fastening strip and/or a radius on a fastening support and extends at least partially into the fastening strip and/or into the fastening support. This means that crack progression can also be stopped in the fastening strip and/or a fastening support.
  • the honeycombs are preferably polygonal, in particular at least square. Square honeycombs can be produced quickly and are therefore inexpensive. Polygonal honeycombs are particularly stable and stop the progression of cracks particularly well.
  • the honeycombs can be hexagonal, for example.
  • the protective device is formed from a thermoplastic material, i.e. both the first cover layer and the second cover layer as well as the intermediate layer are formed from the same thermoplastic material.
  • the thermoplastic material is a high-performance material and is particularly suitable for the protective device.
  • the first cover layer and the second cover layer are each 2 to 3 mm thick, including a predetermined tolerance range, and/or the intermediate layer is 4 to 5 mm thick, including a predetermined tolerance range.
  • the intermediate layer with the honeycomb structure is therefore thicker than the first cover layer and the second cover layer.
  • the honeycomb structure also contributes to the stability of the base plate.
  • first cover layer and the second cover layer can each comprise at least three sub-layers, in particular five sub-layers, and/or the intermediate layer can comprise at least five sub-layers, in particular thirteen sub-layers. With these numbers of partial layers, the specified thicknesses can be produced particularly well using additive manufacturing.
  • a partial layer can preferably have a layer thickness of 0.1 to 0.5 mm, including a predetermined tolerance range. This layer thickness enables precise production of the protective device during additive manufacturing.
  • a thickness of the rib and/or the intermediate rib can be 5 to 7 mm, including a predetermined tolerance range
  • a width of the rib and/or the intermediate rib may be 10 to 50 mm, including a predetermined tolerance range.
  • a rib with this width is particularly suitable for stabilizing the base plate.
  • the geometry of the rib and/or the intermediate rib is also variable.
  • the Fig. 1 and 2 show a protective device 10, which includes a base plate 30, a fastening strip 20, a first fastening support 21 and a second fastening support 22.
  • the protection device 10 is intended to protect an ETCS antenna on a rail vehicle, not shown.
  • the protective device 10 is attached to an underbody, not shown, of the rail vehicle by means of the fastening strip 20, the first fastening support 21 and the second fastening support 22.
  • the base plate 30 has a first rib 51 which is arranged on a first edge 41.
  • the base plate 30 has a second rib 52 which is arranged on a second edge 42.
  • a third rib 53 is arranged on a third edge 43 of the base plate, and a fourth rib 54 is arranged on a fourth edge 44.
  • a first intermediate rib 61 and a second intermediate rib 62 are arranged between the first rib 51 and the second rib 52.
  • the first rib 51, the first intermediate rib 61, the second intermediate rib 62 and the second rib 52 are aligned parallel to each other.
  • the third rib 53 and the fourth rib 54 are aligned perpendicular to the first rib 51, the first intermediate rib 61, the second intermediate rib 62 and the second rib 52.
  • the first intermediate rib 61 and the second intermediate rib 62 are wider than the first rib 51 and the second rib 52 (cf. Fig. 3 ).
  • the third rib 53 and the fourth rib 54 are the same width as the first rib 51 and the second rib 52.
  • Elongated holes 70 are arranged between the first rib 51 and the first intermediate rib 61. Further elongated holes 70 are arranged between the first intermediate rib 61 and the second intermediate rib 62. In addition, elongated holes 70 are also arranged between the second intermediate rib 62 and the second rib 52.
  • Fig. 3 is a sectional view through the base plate 30 of the protective device 10 along the line AA in Fig. 1 shown.
  • the base plate 30 has the first edge 41 and the second edge 42.
  • the base plate 30 includes a first cover layer 31, a second cover layer 32 and an intermediate layer 33, which together represent a sandwich structure.
  • the intermediate layer 33 has a large number of honeycombs 34.
  • individual honeycombs 34 are provided with reference numbers only as an example.
  • the honeycombs 34 have a square structure.
  • the honeycombs 34 can also be pentagonal or hexagonal, for example.
  • the honeycombs 34 are hollow, that is, they are free of filler. Only air is trapped inside the honeycombs 34.
  • the intermediate layer 33 ends in front of the edge 41 and in front of the edge 42.
  • the intermediate layer 33 ends in particular in the area of the first rib 51 and in the area of the second rib 52.
  • the intermediate layer 33 is preferably arranged centrally within the base plate 30.
  • the first cover layer 31 and the second cover layer 32 are each thinner than the intermediate layer 33, with the first cover layer 31 and the second cover layer 32 being the same thickness.
  • the first cover layer 31, the second cover layer 32 and the intermediate layer 33 together have a first thickness D1.
  • the first rib 51, the second rib 52, the first intermediate rib 61 and the second intermediate rib 62 each have an equal second thickness D2, which is smaller than the first thickness D1 of the first cover layer 31, the second cover layer 32 and the intermediate layer 33 combined .
  • the first rib 51, the second rib 52, the first intermediate rib 61 and the second intermediate rib 62 are each arranged on the second cover layer 32 and are made in one piece with the second cover layer 32, the intermediate layer 33 and the first cover layer 31.
  • the first rib 51 and the second rib 52 have the same width B1.
  • the first intermediate rib 61 and the second intermediate rib 62 have an equal width B2, which is larger than the first width B1.
  • the sandwich structure with the first cover layer 31, the second cover layer 32 and the intermediate layer 33 each follows a first radius R1 of the fastening strip 20, a second radius R2 of the first fastening support 21 and a third radius R3 of the second fastening support 22.
  • the first radius R1 , the second radius R2 and the third radius R3 are in particular in the Fig. 2 shown.
  • a crack can occur in the protective device, for example due to flying gravel or ice formation.
  • the progression of cracks can be stopped using the intermediate layer.
  • the base plate is mechanically reinforced by means of the first rib 51, the second rib 52, the first intermediate rib 61, the second intermediate rib 62, the third rib 53 and/or the fourth rib 54.
  • the elongated holes 70 serve to equalize pressure while the rail vehicle is traveling and to provide drainage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Remote Sensing (AREA)
  • Laminated Bodies (AREA)

Claims (15)

  1. Dispositif de protection (10) pour une antenne du système européen de contrôle des trains (European Train Control System), ETCS, dans lequel le dispositif de protection (10) comprend :
    - une baguette de fixation (20),
    - deux supports de fixation (21, 22) et
    - une plaque de base (30)
    et dans lequel
    - la plaque de base (30) comprend une structure en sandwich comportant une première couche de couverture (31), une seconde couche de couverture (32) et une couche intermédiaire (33),
    - la couche intermédiaire (33) présente des alvéoles (34) et
    - le dispositif de protection (10) est réalisé d'une seule pièce et fabriqué de manière additive.
  2. Dispositif de protection (10) selon la revendication 1,
    caractérisé en ce qu'une nervure de la plaque de base (30) est disposée sur la seconde couche de couverture (32), dans lequel en particulier quatre nervures (51, 52, 61, 62) de la plaque de base (30) sont disposées parallèlement les unes aux autres sur la seconde couche de couverture (32).
  3. Dispositif de protection (10) selon la revendication 2,
    caractérisé en ce qu'une première nervure (51) de la plaque de base (30) est disposée sur un premier bord (41) de la plaque de base (30) et/ou qu'une deuxième nervure (52) de la plaque de base (30) est disposée sur un deuxième bord (42) de la plaque de base (30).
  4. Dispositif de protection (10) selon la revendication 3,
    caractérisé en ce qu'une nervure intermédiaire (61, 62) de la plaque de base (30) est disposée entre la première nervure (51) et la deuxième nervure (52), laquelle nervure intermédiaire présente en particulier une seconde largeur (B2) qui est supérieure à une première largeur (B1) de la première nervure (51) et de la deuxième nervure (52) et/ou présente une épaisseur (D2) identique à celle de la première nervure (51) et de la deuxième nervure (52).
  5. Dispositif de protection (10) selon la revendication 3 ou 4,
    caractérisé en ce qu'une troisième nervure (53) de la plaque de base (30) est disposée sur un troisième bord (43) de la plaque de base (30) et/ou qu'une quatrième nervure (54) de la plaque de base (30) est disposée sur un quatrième bord (44) de la plaque de base (30), dans lequel la troisième nervure (53) et/ou la quatrième nervure (54) sont disposées perpendiculairement à la première nervure (51) et à la deuxième nervure (52).
  6. Dispositif de protection (10) selon la revendication 5,
    caractérisé en ce que la première nervure (51), la deuxième nervure (52), la troisième nervure (53) et la quatrième nervure (54) présentent une seconde épaisseur (D2) identique et/ou une première largeur (B1) identique.
  7. Dispositif de protection (10) selon l'une des revendications 4 à 6,
    caractérisé en ce que la plaque de base (30) présente des trous oblongs (70) qui sont disposés entre la première nervure (51) et la nervure intermédiaire (61, 62) et/ou entre la deuxième nervure (52) et la nervure intermédiaire (61, 62), dans lequel les trous oblongs (70) sont disposés en particulier en rangée et parallèlement à la nervure intermédiaire (61, 62).
  8. Dispositif de protection (10) selon l'une des revendications précédentes,
    caractérisé en ce que la couche intermédiaire (33) suit un rayon (R1) sur la baguette de fixation (20) et/ou un rayon (R2, R3) sur un support de fixation (21, 22) et pénètre au moins partiellement dans la baguette de fixation (20) et/ou dans le support de fixation (21, 22).
  9. Dispositif de protection (10) selon l'une des revendications précédentes,
    caractérisé en ce que les alvéoles (34) sont polygonales, en particulier sont au moins quadrangulaires.
  10. Dispositif de protection (10) selon l'une des revendications précédentes,
    caractérisé en ce que le dispositif de protection (10) est formé en un matériau thermoplastique.
  11. Dispositif de protection (10) selon l'une des revendications précédentes,
    caractérisé en ce que la première couche de couverture (31) et la seconde couche de couverture (32) ont respectivement une épaisseur allant de 2 à 3 mm, en incluant une plage de tolérance prédéfinie, et/ou en ce que la couche intermédiaire (33) a une épaisseur allant de 4 à 5 mm, en incluant une plage de tolérance prédéfinie.
  12. Dispositif de protection (10) selon l'une des revendications précédentes,
    caractérisé en ce que la première couche de couverture (31) et la seconde couche de couverture (32) comprennent respectivement au moins trois couches partielles, en particulier cinq couches partielles, et/ou en ce que la couche intermédiaire (33) comprend au moins cinq couches partielles, en particulier treize couches partielles.
  13. Dispositif de protection (10) selon la revendication 12,
    caractérisé en ce qu'une couche partielle présente une épaisseur de couche allant de 0,1 à 0,5 mm, en incluant une plage de tolérance prédéfinie.
  14. Dispositif de protection (10) selon l'une des revendications 2 à 13,
    caractérisé en ce qu'une épaisseur de la nervure (51, 52, 53, 54) et/ou de la nervure intermédiaire (61, 62) va de 5 à 7 mm, en incluant une plage de tolérance prédéfinie
    et/ou en ce qu'une largeur de la nervure (51, 52, 53, 54) et/ou de la nervure intermédiaire (61, 62) va de 10 à 50 mm, en incluant une plage de tolérance prédéfinie.
  15. Véhicule ferroviaire comportant un dispositif de protection (10) selon l'une des revendications 1 à 14.
EP21175050.0A 2020-06-03 2021-05-20 Dispositif de protection et véhicule ferroviaire doté d'un dispositif de protection Active EP3920331B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020114776.7A DE102020114776A1 (de) 2020-06-03 2020-06-03 Schutzvorrichtung und Schienenfahrzeug mit einer Schutzvorrichtung

Publications (2)

Publication Number Publication Date
EP3920331A1 EP3920331A1 (fr) 2021-12-08
EP3920331B1 true EP3920331B1 (fr) 2024-01-31

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ID=76034560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21175050.0A Active EP3920331B1 (fr) 2020-06-03 2021-05-20 Dispositif de protection et véhicule ferroviaire doté d'un dispositif de protection

Country Status (3)

Country Link
EP (1) EP3920331B1 (fr)
DE (1) DE102020114776A1 (fr)
ES (1) ES2977649T3 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632128A1 (de) 1986-09-22 1988-04-07 Siemens Ag Dielektrische schutzhaube zur abdeckung von mikrowellenantennen
DE102013212436B4 (de) 2013-06-27 2015-02-12 Siemens Aktiengesellschaft Schienenfahrzeug mit vor Schotterflug zu schützender Komponente
CN105992471A (zh) * 2015-02-09 2016-10-05 深圳富泰宏精密工业有限公司 浮力装置及应用该浮力装置的便携式电子装置组件
FR3071673B1 (fr) 2017-09-27 2020-11-06 Alstom Transp Tech Element de protection d'une antenne prevue sous le plancher d'un vehicule ferroviaire
CN208001001U (zh) 2018-03-07 2018-10-23 北京瑞德尚复合材料有限公司 一种机车应答天线保护壳
US11135763B2 (en) * 2018-05-02 2021-10-05 Northrop Grumman Systems Corporation Assemblies formed by additive manufacturing, radar absorbing structures, and related methods
CN208900342U (zh) * 2018-09-26 2019-05-24 广州凯士比流体技术有限公司 一种基于3d打印的泵壳及泵
CN209766639U (zh) 2019-06-30 2019-12-10 沈阳铁路信号有限责任公司 一种动车组用抗恶劣环境btm天线单元

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Publication number Publication date
EP3920331A1 (fr) 2021-12-08
DE102020114776A1 (de) 2021-12-09
ES2977649T3 (es) 2024-08-28

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