EP2768005B1 - Module à contacts mobiles rotatifs à doubles points d'ouverture - Google Patents

Module à contacts mobiles rotatifs à doubles points d'ouverture Download PDF

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Publication number
EP2768005B1
EP2768005B1 EP12840034.8A EP12840034A EP2768005B1 EP 2768005 B1 EP2768005 B1 EP 2768005B1 EP 12840034 A EP12840034 A EP 12840034A EP 2768005 B1 EP2768005 B1 EP 2768005B1
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EP
European Patent Office
Prior art keywords
hole
shaft
connection member
rod
contact bridge
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
EP12840034.8A
Other languages
German (de)
English (en)
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EP2768005A1 (fr
EP2768005A4 (fr
Inventor
Xiang Gu
Jia Li
Chuanzheng Wang
Li Li
Liangquan SUN
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.)
Zhejiang Chint Electrics Co Ltd
SEARI Electric Technology Co Ltd
Original Assignee
Zhejiang Chint Electrics Co Ltd
SEARI Electric Technology Co Ltd
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.)
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Publication date
Application filed by Zhejiang Chint Electrics Co Ltd, SEARI Electric Technology Co Ltd filed Critical Zhejiang Chint Electrics Co Ltd
Publication of EP2768005A1 publication Critical patent/EP2768005A1/fr
Publication of EP2768005A4 publication Critical patent/EP2768005A4/fr
Application granted granted Critical
Publication of EP2768005B1 publication Critical patent/EP2768005B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H01H1/205—Details concerning the elastic mounting of the rotating bridge in the rotor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts

Definitions

  • the present invention relates to contact module of circuit breaker, more particularly, relates to rotary dual breakpoint moving contact module in operation mechanism of circuit breaker.
  • Dual breakpoint structure is a trend of modern molded case circuit breakers. As an important component of the molded case circuit breaker, contact modules has drawn great attention. Modern molded case circuit breakers with high breaking ability generally use rotary dual breakpoint moving contact structures, which are of various forms. Some of the conventional rotary moving contact structures have additional functions, the additional functions mainly include automatic lock of the moving contact after opening by electrodynamic repulsion force, so as to prevent rebound of the moving contact.
  • the present invention provides a rotary dual breakpoint moving contact module having a different structure with the traditional products. A repulsion and lock apparatus with a simple structure, high reliability and less components is provided.
  • the apparatus may quickly lock the contact bridge at a limit position of a clearance distance of open contacts.
  • Another problem that must be solved by the rotary dual breakpoint moving contact structure is to keep balance of the contact pressure applied to the contacts on both sides.
  • the present invention is able to significantly improve the balance between the contact pressure on both sides, while both contact pressure satisfy the desire pressure requirements.
  • the present invention also provides a spring protection mechanism to prevent the spring from damage caused by arc or metal particles.
  • the Chinese patent application with a publication number of CN101320659A , and an application number of 200810040543.0 discloses a rotary dual breakpoint structure of a molded case circuit breaker, comprising: a rod-shaped block rotor having a shaft hole at the axial geometrical center, a plurality of centrally symmetric connection rod through holes on both axial sides, centrally symmetric linkage holes on both axial ends, a contact bridge through hole at the radial center, sidewalls on both radial sides of the rod-shaped block rotor having openings for assembling the contact bridge; a contact bridge passing through the contact bridge through hole and assembled in the openings of the rod-shaped block rotor, the contact bridge having a second through hole at the axial geometrical center, the second through aligning with the shaft hole, a second shaft going through the second through hole and the shaft hole, the contact bridge having a plurality of centrally symmetric first through holes; a set of connection rods, each having a connection hole and a convex
  • the contact bridge of the rotary dual breakpoint structure disclosed in the above patent application uses a slide block mechanism rather than a connection member.
  • the mechanical movement trajectory of the slide block mechanism and the connection member mechanism are completely different.
  • the slide block mechanism may cause sliding friction which may influence the moving flexibility.
  • the rod-shaped block rotor of the above application has a plurality of assembly holes, which may increase the complexity of the assemble procedure due to more assembly procedures.
  • the present invention discloses a rotary dual breakpoint moving contact module with a new structure, which is used in a contact module of molded case circuit breaker.
  • the present invention is able to realize large current short circuit breaking of rotary dual breakpoint moving contacts.
  • the moving contacts may open quickly and rebound of the moving contacts is prevented, and the contact pressure on two contact points is balanced.
  • a rotary dual breakpoint moving contact module as defined in appended claim 1 is provided.
  • Such a rotary dual breakpoint moving contact module comprises among other features:
  • the rod-shaped block rotor has two linkage holes and two semicircle slot holes on each axial side face, the two linkage holes are symmetric along the center of the rod-shaped rotor, the two semicircle slot holes are symmetric along the center of the rod-shaped rotor, a fixed angle is between a line connecting the geometric centers of the two linkage holes on a same axial side face and a line connecting the geometric centers of the two semicircle slot holes on the same axial side face, the linkage holes on different axial side faces are axial concentric, and the semicircle slot holes on different axial side faces are axial concentric.
  • the rod-shaped block rotor has an irregular through hole in radial direction, the width of the irregular through hole allows the contact bridge to cross through, the rod-shaped block rotor also has second recesses in radial direction, each second recess surrounds a semicircle slot hole.
  • the irregular through hole has two first curved faces which are centrally symmetric, the first curved faces match with the outer profile of the contact bridge to define an initial pressure position and a maximum open position of the contact bridge.
  • the outer profile of the contact bridge has two second curved faces which are centrally symmetric, the second curved faces match with the first curved faces.
  • the first connection member is mounted within the two semicircle slot holes which are axial concentric, the first connection member slides within the second recesses using the semicircle slot hole as the rotation center, the angle of rotation of the first connection member is limited by the length of the second recess.
  • the first connection member has a second through hole and a convex short shaft on both sides, the short shaft matches with the semicircle slot hole, the second through hole matches with the second shaft.
  • a plane thickness of the first connection member is not larger than a depth of the second recess.
  • the second connection member has a third through hole and a fourth through hole on both ends, the third through hole matches with the second shaft, the fourth through hole matches with the third shaft.
  • the contact bridge has two fifth through holes which are centrally symmetric, the third shaft is mounted within the fifth holes.
  • the contact bridge has a slotted hole at the center, the first shaft passed through the slotted hole and is able to slide within the slotted hole along the longitudinal direction, the longitudinal direction of the slotted hole has a fixed angle to a contact welding surface of the contacts welded on the contact bridge.
  • the contact spring is suspended on two second shafts which are centrally symmetric, and moves within the first recess on the rod-shaped block rotor.
  • the rotary dual breakpoint moving contact module of the present invention is able to realize large current short circuit breaking of rotary dual breakpoint moving contacts.
  • the moving contacts may open quickly and rebound of the moving contacts is prevented, and the contact pressure on two contact points is balanced.
  • the present invention discloses a rotary dual breakpoint moving contact module.
  • Figs. 1 ⁇ 10 illustrate a rotary dual breakpoint moving contact module according to an embodiment of the present invention.
  • the rotary dual breakpoint moving contact module comprises a rod-shaped block rotor 101, a first connection member 102, a second connection member 103, a contact bridge 104, a first shaft 105, second shafts 106, a third shaft 107 and contact springs 108.
  • the rod-shaped block rotor 101 is single-phase independent.
  • the rod-shaped block rotor 101 has a first through hole 110 at the center.
  • the first shaft 105 is mounted in the first through hole 110.
  • the rod-shaped block rotor 101 has a first recess 111 on each axial side face.
  • the contact spring 108 is mounted in each first recess 111.
  • the contact spring 108 is able to move within a range defined by the first recess 111.
  • the first connection member 102 is mounted on the rod-shaped block rotor 101.
  • the second shaft 106 goes through the first connection member 102.
  • the second shaft 106 and the third shaft 107 goes through the second connection member 103 respectively.
  • the contact bridge 104 crosses through the rod-shaped block rotor 101.
  • the outer profile of the contact bridge 104 is centrally symmetric.
  • the first shaft 105 and the third shaft 107 go through the contact bridge 104 respectively.
  • Contacts are welded to the end points on both sides of the contact bridge 104.
  • Figs. 3a, 3b, 3c and 3d illustrate the rod-shaped block rotor of the rotary dual breakpoint moving contact module according to an embodiment of the present invention.
  • the two linkage holes 112 are symmetric along the center of the rod-shaped rotor, and the two semicircle slot holes 113 are also symmetric along the center of the rod-shaped rotor.
  • a fixed angle is between a line connecting the geometric centers of the two linkage holes 112 on a same axial side face and a line connecting the geometric centers of the two semicircle slot holes 113 on the same axial side face.
  • the linkage holes 112 on different axial side faces are axial concentric, and the semicircle slot holes 113 on different axial side faces are also axial concentric.
  • the rod-shaped block rotor 101 has an irregular through hole 114 in radial direction. The width of the irregular through hole 114 allows the contact bridge 104 to cross through.
  • the irregular through hole 114 has two first curved faces 116 which are centrally symmetric.
  • the first curved faces 116 match with the outer profile of the contact bridge 104 to define an initial pressure position and a maximum open position of the contact bridge 104.
  • the rod-shaped block rotor 101 also has second recesses 115 in radial direction. Each second recess 115 surrounds a semicircle slot hole 113. The total number of the second recesses 115 is also four.
  • Figs. 2a and 2b illustrate the contact bridge of the rotary dual breakpoint moving contact module according to an embodiment of the present invention.
  • the contact bridge 104 has two fifth through holes 140 which are centrally symmetric.
  • the third shaft 107 is mounted within the fifth holes 140.
  • the third shaft 107 fits in the fifth holes 140 with small clearance.
  • the contact bridge 104 has a slotted hole 141 at the center.
  • the first shaft 105 passes through the slotted hole 141.
  • the first shaft 105 fits in the slotted hole 141 with small clearance and is able to slide within the slotted hole 141 along the longitudinal direction.
  • the longitudinal direction of the slotted hole 141 has a fixed angle to a contact welding surface of the contacts welded on the contact bridge 104.
  • the angle may be optimized by calculation so as to keep balance of contact pressure applied to the contacts on both sides.
  • the outer profile of the contact bridge 104 has two second curved faces 142 which are centrally symmetric.
  • the second curved faces 142 match with the first curved faces 116 on the irregular through hole 114, the first curved face 116 fits in the second curved face 142 with small clearance.
  • Figs 4a, 4b and 4c illustrate the first connection member of the rotary dual breakpoint moving contact module according to an embodiment of the present invention.
  • the first connection member 102 is mounted within the two semicircle slot holes 113 which are axial concentric.
  • the first connection member 112 slides within the second recesses 115 using the semicircle slot hole 113 as the rotation center.
  • the angle of rotation of the first connection member 102 is limited by the length of the second recess 115.
  • the first connection member 102 has a second through hole 121 and a convex short shaft 120 on both sides.
  • the short shaft 120 matches with the semicircle slot hole 113.
  • the second through hole 121 matches with the second shaft 106.
  • a plane thickness of the first connection member 102 is not larger than a depth of the second recess 115, so that the second recesses 115 can effectively limit the movement range of the first connection member 102.
  • the outer profile of the first connection member 102 does not influence the rotation of itself within a range.
  • Figs. 5a and 5b illustrate the second connection member of the rotary dual breakpoint moving contact module according to an embodiment of the present invention.
  • the second connection member 103 has a third through hole 130 and a fourth through hole 131 on both ends, the third through hole 130 matches with the second shaft 106, the fourth through hole 131 matches with the third shaft 107.
  • the first shaft 105 crosses through the first through hole 110 of the rod-shaped block rotor 101 and the slotted hole 141 of the contact bridge 104 along the axial direction of the rod-shaped block rotor 101.
  • the first shaft 105 fits in the first through hole 110 and the slotted hole 141 with small clearance.
  • Two second shafts 106 which are disposed in a centrally symmetric manner, cross through the second though hole 121 of the first connection member 102 and the third through hole 130 of the second connection member 103 along the axial direction of the rod-shaped block rotor 101.
  • the contact spring 108 is suspended on two second shafts 106 which are centrally symmetric.
  • the contact spring 108 moves within the first recess 111 on both axial sides of the rod-shaped block rotor 101.
  • the third shafts 107 are disposed in a centrally symmetric manner and cross through the fourth through hole 131 of the second connection member 103 and the fifth through hole 140 of the contact bridge 104 along the axial direction of the rod-shaped block
  • Figs. 6 ⁇ 10 illustrate the working process of the rotary dual breakpoint moving contact module according to an embodiment of the present invention.
  • Fig. 6 illustrates the structural view at an opening position or a tripping position
  • Fig. 7 illustrates the structural view at a closing position
  • Fig. 8 illustrates the structural view at a dead point
  • Fig. 9 illustrates the structural view at a maximum open position
  • Fig. 10 illustrates the structural view at an imbalanced stress position.
  • connection members perform counterclockwise rotation under the action of the spring force of the contact springs.
  • the force is transferred to the first connection member through the first shaft and drives the first connection member to perform counterclockwise rotation.
  • the first connection member, the second connection member and the contact bridge form a four-member connection mechanism, which enables the force to further drive the contact bridge to perform counterclockwise rotation.
  • the second curved faces of the contact bridge touch and rely on the first curved faces of the rod-shaped block rotor finally.
  • the rotary dual breakpoint moving contact module maintains the status as show in Fig. 6 .
  • connection members perform counterclockwise rotation under the action of the spring force of the contact springs.
  • the force is transferred to the first connection member through the first shaft and drives the first connection member to perform counterclockwise rotation.
  • the first connection member, the second connection member and the contact bridge form a four-member connection mechanism, which enables the force to further drive the contact bridge to perform counterclockwise rotation.
  • the moving contacts on the contact bridges touch the static contacts finally, the rotary dual breakpoint moving contact module maintains the status as show in Fig. 7 .
  • the rotary dual breakpoint moving contact module of the present invention is able to realize large current short circuit breaking of rotary dual breakpoint moving contacts, the moving contacts may open quickly and rebound of the moving contacts is prevented, and the contact pressure on two contact points is balanced.

Landscapes

  • Breakers (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Fuses (AREA)

Claims (6)

  1. Module rotatif à contacts mobiles à doubles points de rupture, comprenant :
    un rotor monophasé à blocs en forme de tiges indépendantes (101) présentent un premier trou traversant (110) au centre de celui-ci, une première cavité (111) et deux trous en forme de fentes semi-circulaires (113) sur chaque face latérale axiale de celle-ci, et une deuxième cavité (115) dans une direction radiale, les deux trous en forme de fentes semi-circulaires (113) étant symétriques le long du centre du rotor en forme de tiges (10), et les trous en forme de fentes semi-circulaires (113) sur des faces latérales axiales différentes étant alignés axialement, et chaque deuxième cavité (115) entourant un trou en forme de fente semi-circulaire (113) ;
    un premier arbre (105) monté dans le premier trou traversant (110) ;
    un ressort de contact (108) monté dans chaque première cavité (111), le ressort de contact (108) étant capable de se déplacer dans une plage définie par la première cavité (111) ;
    un premier élément de connexion (102) monté sur le rotor à blocs en forme de tiges (101),
    le premier élément de connexion (102) étant monté dans les deux trous en forme de fentes semi-circulaires (113) qui sont alignés axialement, le premier élément de connexion (102) étant configuré pour coulisser dans la deuxième cavité (115) à l'aide du trou en forme de fente semi-circulaire (113) comme centre de rotation, et l'angle de rotation du premier élément de connexion (102) étant limité par la longueur de la deuxième cavité (115),
    le premier élément de connexion (102) présentant un deuxième trou traversant (121), un arbre court convexe (120) de chaque côté du premier élément de connexion (102) et une épaisseur de plan, l'arbre court (120) coïncidant avec le trou en forme de fente semi-circulaire (113), le deuxième trou traversant (121) coïncidant avec un deuxième arbre (106), et l'épaisseur de plan n'étant pas plus grande qu'une profondeur de la deuxième cavité (115), de sorte que la deuxième cavité (115) peut limiter efficacement une plage de mouvement de la première cavité de connexion (102) ;
    le deuxième arbre (106) traversant le premier élément de connexion (102) pour suspendre le ressort de contact (108) ;
    un troisième arbre (107) ;
    un deuxième élément de connexion (103) présentant un troisième trou traversant (130) et un quatrième trou traversant (131) aux deux extrémités du deuxième élément de connexion (103), le troisième trou traversant (130) coïncidant avec le deuxième arbre (106) et le quatrième trou traversant (131) coïncidant avec le troisième arbre (107) ;
    le deuxième arbre (106) et le troisième arbre (107) traversant le deuxième élément de connexion (103) respectivement ; et
    un pont de contact (104) traversant le rotor à blocs en forme de tiges (101), le profil extérieur du pont de contact (104) présentant une symétrie centrale,
    le premier arbre (105) et le troisième arbre (107) traversant le pont de contact (104) respectivement, et des contacts étant soudés à des points d'extrémité des deux côtés du pont de contact (104).
  2. Module rotatif à contacts mobiles à doubles points de rupture selon la revendication 1, dans lequel
    le rotor à blocs en forme de tiges (101) comporte en outre deux trous de liaison (112) sur chaque face latérale axiale de celui-ci, les deux trous de liaison (112) étant symétriques le long du centre du rotor en forme de tiges (101), dans lequel un angle fixe est prévu entre une ligne reliant les centres géométriques des deux trous de liaison (112) sur une même face latérale axiale et une ligne reliant les centres géométriques des deux trous en forme de fentes semi-circulaires (113) sur la même face latérale axiale, dans lequel les trous de liaison (112) sur des faces latérales axiales différentes sont alignés axialement ; et
    le rotor à blocs en forme de tiges (101) présente un trou traversant irrégulier (114) dans la direction radiale, la profondeur du trou traversant irrégulier (114) permettant au pont de contact (104) de s'étendre à travers.
  3. Module rotatif à contacts mobiles à doubles points de rupture selon la revendication 2, dans lequel
    le trou traversant irrégulier (114) présente deux premières faces courbes (116) à symétrie centrale, et les premières faces courbes (116) coïncident avec le profil extérieur du pont de contact (104) pour définir une position de pression initiale et une position ouverte maximale du pont de contact (104).
  4. Module rotatif à contacts mobiles à doubles points de rupture selon la revendication 3, dans lequel
    le profil extérieur du pont de contact (104) présente deux deuxièmes faces courbes (142) à symétrie centrale, et les deuxièmes faces courbes (142) coïncident avec les premières faces courbes (116).
  5. Module rotatif à contacts mobiles à doubles points de rupture selon la revendication 1, dans lequel
    le pont de contact (104) présente deux cinquièmes trous traversants (140) à symétrie centrale, et le troisième arbre (107) est monté dans les cinquièmes trous ; et
    le pont de contact (104) présente un trou en forme de fente (141) au centre, le premier arbre (105) traverse le trou en forme de fente (141) et peut coulisser dans le trou en forme de fente (141) le long de la direction longitudinale, et la direction longitudinale du trou en forme de fente (141) présente un angle fixe par rapport à une surface de soudage des contacts soudés sur le pont de contact (104).
  6. Module rotatif à contacts mobiles à doubles points de rupture selon la revendication 1, dans lequel
    le ressort de contact (108) est suspendu à deux deuxièmes arbres (106) à symétrie centrale, et peut se déplacer dans la première cavité (111) sur le rotor à blocs en forme de tiges (101).
EP12840034.8A 2011-10-13 2012-09-24 Module à contacts mobiles rotatifs à doubles points d'ouverture Active EP2768005B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110310339.8A CN103050344B (zh) 2011-10-13 2011-10-13 旋转双断点动触头模块
PCT/CN2012/081807 WO2013053283A1 (fr) 2011-10-13 2012-09-24 Module à contacts mobiles rotatifs à doubles points d'ouverture

Publications (3)

Publication Number Publication Date
EP2768005A1 EP2768005A1 (fr) 2014-08-20
EP2768005A4 EP2768005A4 (fr) 2015-08-05
EP2768005B1 true EP2768005B1 (fr) 2016-12-21

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Application Number Title Priority Date Filing Date
EP12840034.8A Active EP2768005B1 (fr) 2011-10-13 2012-09-24 Module à contacts mobiles rotatifs à doubles points d'ouverture

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EP (1) EP2768005B1 (fr)
CN (1) CN103050344B (fr)
BR (1) BR112014008569B1 (fr)
ES (1) ES2619710T3 (fr)
MY (1) MY170441A (fr)
WO (1) WO2013053283A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104465254A (zh) * 2013-09-24 2015-03-25 上海电科电器科技有限公司 旋转双断点触头
CN108648969B (zh) * 2018-06-28 2023-12-01 美高电气科技有限公司 一种双断点小型断路器
CN110176367B (zh) * 2019-05-15 2021-06-22 深圳市泰永电气科技有限公司 双断点转换开关及其动触头模组
CN114464507A (zh) * 2022-01-28 2022-05-10 江苏辉能电气有限公司 双断点触头旋转装置和断路器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6114641A (en) * 1998-05-29 2000-09-05 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
US6084489A (en) * 1998-09-08 2000-07-04 General Electric Company Circuit breaker rotary contact assembly locking system
US6403909B1 (en) * 2000-03-13 2002-06-11 General Electric Company Trip override for rotary breaker
DE102004059407B4 (de) * 2004-12-09 2007-02-08 Ge Power Controls Gmbh & Co. Kg Schaltwelleneinheit für einen Schalter
CN101114556B (zh) * 2007-04-29 2010-06-09 上海电科电器科技有限公司 断路器旋转双断点触头系统及其弹簧保护结构
CN101320659B (zh) * 2008-07-14 2012-03-28 上海电科电器科技有限公司 塑壳断路器的旋转双断点结构
CN201397785Y (zh) * 2009-05-11 2010-02-03 江苏辉能电气有限公司 低压断路器触头旋转双断点结构
CN102103948A (zh) * 2009-12-16 2011-06-22 上海电器股份有限公司人民电器厂 一种塑壳断路器的动触头组件

Also Published As

Publication number Publication date
MY170441A (en) 2019-07-31
EP2768005A1 (fr) 2014-08-20
WO2013053283A1 (fr) 2013-04-18
CN103050344B (zh) 2015-01-21
BR112014008569A2 (pt) 2017-04-18
CN103050344A (zh) 2013-04-17
BR112014008569B1 (pt) 2020-12-15
ES2619710T3 (es) 2017-06-26
EP2768005A4 (fr) 2015-08-05

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