EP2050105A1 - Dispositif de séparation plus particulièrement pour des déflecteurs de surtension enfichables - Google Patents

Dispositif de séparation plus particulièrement pour des déflecteurs de surtension enfichables

Info

Publication number
EP2050105A1
EP2050105A1 EP07730033A EP07730033A EP2050105A1 EP 2050105 A1 EP2050105 A1 EP 2050105A1 EP 07730033 A EP07730033 A EP 07730033A EP 07730033 A EP07730033 A EP 07730033A EP 2050105 A1 EP2050105 A1 EP 2050105A1
Authority
EP
European Patent Office
Prior art keywords
arrester
separating device
connection
solder
separation
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
Application number
EP07730033A
Other languages
German (de)
English (en)
Other versions
EP2050105B1 (fr
Inventor
Edmund ZÄUNER
Richard Daum
Georg Wittmann
Florian Gaeck
Sascha Ludewig
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.)
Dehn SE and Co KG
Original Assignee
Dehn and Soehne GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dehn and Soehne GmbH and Co KG filed Critical Dehn and Soehne GmbH and Co KG
Publication of EP2050105A1 publication Critical patent/EP2050105A1/fr
Application granted granted Critical
Publication of EP2050105B1 publication Critical patent/EP2050105B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/12—Overvoltage protection resistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
    • H01H2037/762—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts

Definitions

  • the invention relates to a separation device for in particular pluggable surge arrester, wherein the separation point is designed as a thermally triggered solder connection between an outer terminal of the arrester and a connection point of the at least one arrester element, for example a varistor disc and wherein further on the solder connection a biasing force in the separation direction acts according to the preamble of claim 1.
  • Lot connection are formed, for example, according to DE 295 19 313 Ul belong to the prior art.
  • the solder Under the influence of heating, whose heat source is preferably an overvoltage protection device to be monitored, e.g. forms a varistor, the solder is liquefied and separated as a result of thereby triggered switching movement of a specially provided part of the separating device, an electrical connection.
  • an overvoltage protection device to be monitored e.g. forms a varistor
  • the part of the separation device from which performs the switching movement is biased in the prior art by means of a spring-biased in the switching direction.
  • the switching movement reaches its absolute end point as soon as the preload force of the spring is used up.
  • EP 0 716 493 A1 discloses a parallel connection of a plurality of varistors, each with a separator device, wherein the Z ⁇ stand each of the varistors with the aid of a display device can be displayed.
  • a plurality of solder joints are to be separated as simultaneously as possible in order to cancel the electrical connection.
  • multiple solder joints require a larger amount of solder material with the result that the heat energy has a greater value to reach the melting point of this larger amount of material.
  • a delayed response of the separating device is possible.
  • the separation point is designed as a thermally triggered solder connection between an outer terminal contact of the arrester and a connection point of the at least one arrester element, such as a varistor disc and wherein a safe, fast disconnection can be realized and wherein furthermore an increased thermal sensitivity for a safe triggering of the arrester in case of failure or overload is given.
  • the separating device according to the invention can also be used for the parallel connection of several arresters, i.
  • Protective elements are designed as a common separating device, which is arranged quasi in force-free space between the arresters.
  • the separating device can be loaded with very high surge currents and the close contact with the arresters results in the desired sensitive response behavior.
  • Surge arrester designed as a metallic molded part, which has an integral extension leg.
  • This extension leg has a solder connection, i. to the separation point leading end, which has a U-shape.
  • the point of connection of the arrester element e.g. a varistor disk, is called
  • the metallic molded part is under
  • the width and the length of the finger is designed so that there is a blade-like dragging and pushing away the molten solder in Abtrennfall. Unwanted solder scratches or solder bridges are avoided by this constructive solution.
  • the solder joint can be made as a pin or rivet of a melting material, wherein the pin and the rivet penetrates both a recess in the sheet and in the U-shaped end of the molding.
  • a cotter pin made of a melting material, i. acts as a connecting solder.
  • a plurality of spaced pins or rivets can be made of a melting material, if this proves to be necessary under consideration of the surge currents to be led.
  • the respective surface piece of the arrester element extends parallel to the respective leg of the U-shaped end of the molded part and is applied to this.
  • the finger acts on the connecting portion between the U-shaped leg of the molded part and pulls this section by spring force in the separation direction, wherein the spring biasing force of the molded part with that spring force vectorially added to the finger, for example by realized a helical compression spring, acts.
  • solder joint is executed as possible as the only solder joint, in particular in the form of a solder pill, i. it does not require multiple solder joints, as is necessary in the prior art.
  • the finger may be provided with an optical display for displaying the
  • This optical display can comprise a sliding element with a correspondingly colored design, which moves in front of a window or is removed from a window area.
  • Ableiter arranged parallel and spaced from each other, wherein the respective surface pieces on opposite sides facing each other such that a U-leg of the molded part with a first surface piece and the other U-leg comes to rest with a second surface piece, wherein the separating direction and the separating movement in the distance space of the arrester elements are given in or run.
  • the metallic molded part may have a V-shaped Steckêtabwinklung at its pointing away from the solder joint end.
  • the sheet may include an angling, e.g. carried out at an angle of 90 °, having the connecting portion between the legs of the U-shaped end of the molding outside, i. at least partially surrounds at a side facing away from the separation direction. Also in this constructive variant, the distance of the mechanical contact between surface piece and molded part is secured at least over a portion by a solder material.
  • the extension leg of the metallic molding have at least one-sided or even a two-sided fold. This fold can be performed up to the U-shaped end of the molding or pass over an extension of the Abkantungsschenkel in the U-shaped end.
  • Fig. 1 is a perspective view of a module for a pluggable
  • Fig. 2 is an analogous representation of that of Figure 1, but in side view.
  • Fig. 3 is an illustration of the surge arrester according to that of Fig. 2, but with the support plate removed;
  • Figs. 6 and 7 are plan and perspective views of a first
  • FIG. 8 shows a second embodiment of the severing device with a rivet or a pin made of a melting material
  • FIG. 9 shows a representation of the single solder connection as a solder pill
  • FIG. Fig. 10 shows a third embodiment of the separating device from, wherein the
  • FIG. 11 is an illustration of an embodiment similar to that of Fig. 9 but with only one varistor; 8 shows a representation of the separation device according to FIG. 11 with finger and optical display for signaling the functional state of the separation device or the inserted arrester.
  • FIG In the illustrations according to figures is assumed by a separation device for in particular pluggable surge arrester, which as a plug-in module 1, comprising one or more arresters, e.g. in the form of varistors, can be performed.
  • the plug-in module 1 shown for example in Fig. 1 has a mechanical
  • Support member 2 which for attachment and for receiving Varistorin 3rd
  • a support plate 4 is used, inter alia, to receive a display device 5, e.g. can be realized as a slide. By a change in position of the display device 5, a colored field, which is present on the support plate 4, based on a contained in the outer housing
  • the plug-in module 1 also has external connection contacts 6, which are used for electrical contacting in conjunction with a mating contact piece of a
  • Extension leg 7 is made in one piece. The end of the extension leg facing the solder connection 8 (see FIG. 9)
  • connection point of the arrester element for example a varistor disk 3 is as
  • the metallic molding i. the extension leg 7 is under a natural spring bias.
  • FIG. 3 shows how the finger 11 is movably mounted on a guide part 12, wherein the guide member 12 receives a helical compression spring 13.
  • the helical compression spring 13 ensures that the finger 11 is biased in the image direction to the left. This biasing direction thus has the same vector as that which is characterized by the inherent spring force of the extension leg 7.
  • FIG. 3 also makes it clear that the severing device according to the invention can also be combined with a further thermally triggerable display 14 in order, for example, to signal the reaching of a first limit temperature which does not yet result in a relevant impairment of the solder joint 8 leads.
  • FIG. 3 illustrates the Z ⁇ stand of the function in connection between terminal contact 6 and surface piece 10
  • the separated Z ⁇ stand is made clear with Figs. 4 and 5, wherein it can also be seen that the display device 5 in the picture after shifted to the left.
  • the force of the helical compression spring 13 acts on the finger 11 and thus on the melting solder of the solder joint 8.
  • the spring preload of the metallic molding also generates a force in the separation direction (arrow).
  • Fig. 6 shows two spaced Varistorin, each with a patch 10 for electrical connection.
  • the U-shaped end 9 of the metallic molded part comes with its outer sides of the U-legs with an outer side of the respective surface piece 10 in contact (see also perspective view of FIG. 7).
  • a pin or a rivet 16 can be fixed from a melting material as shown in FIG. 8, which the separation point until reaching the melting point of the rivet or
  • a solder connection 8 can also be realized as a solder pill.
  • Solder 8 can be realized as a solder pill.
  • the extension leg in the third embodiment of Fig. 10, the extension leg
  • the patches 10 each have a fold 17, the
  • Extension leg 7 on the outside, i. surround away from the separation direction. Also in this embodiment, a solder joint secures the position of the
  • Extension leg 7 with respect to the location of the provided with a fold 17
  • Solder 8 immersed, so that when melting the solder by the finger 11 a
  • the metallic molded part with the extension leg 7 preferably has
  • the metallic molded part at its side facing away from the solder joint 8 end on a V-shaped Steckêtabwinklung.
  • List of Reference Numerals [0067] 1 plug-in module [0068] 2 mechanical support part [0069] 3 varistor disk [0070] 4 support plate [0071] 5 display device [0072] 6 connection contact [0073] 7 extension legs 8 solder joint

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
  • Fuses (AREA)

Abstract

L'invention concerne un dispositif de séparation, plus particulièrement pour des déflecteurs de surtension enfichables, le point de séparation étant exécuté comme une liaison soudée détachable thermiquement entre un contact de jonction externe du déflecteur et un point de jonction d'au moins un élément du déflecteur, par exemple un disque de varistance, et une force de précontrainte agissant en outre sur la liaison soudée dans le sens de séparation. Selon l'invention, au moins un contact de jonction externe est exécuté comme une pièce moulée métallique, laquelle présente une traverse de prolongation intégrale, dont l'extrémité orientée vers la liaison soudée a la forme d'un U, le point de jonction de l'élément du déflecteur est conçu en outre comme une pièce plate, laquelle, se trouvant en appui avec une section de l'extrémité en U de la pièce moulée, est fixée à cette dernière par une soudure, ainsi que la pièce moulée métallique se trouve sous la précontrainte du ressort et engage un doigt placé dans le guide sous la force de précontrainte du ressort dans l'espace formé et fermé par la forme en U de la section de la pièce moulée, afin d'entraîner, lors du détachement, une séparation électrique rapide et fiable de la liaison soudée tant par la prise en charge du mouvement de séparation de la pièce moulée que par le déplacement du matériau de soudure.
EP07730033A 2006-07-19 2007-06-11 Dispositif de séparation plus particulièrement pour des ecreteurs de surtension enfichables Expired - Fee Related EP2050105B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006033464 2006-07-19
DE102006042028A DE102006042028B3 (de) 2006-07-19 2006-09-07 Abtrennvorrichtung für insbesondere steckbare Überspannungsableiter
PCT/EP2007/055683 WO2008009513A1 (fr) 2006-07-19 2007-06-11 Dispositif de séparation, notamment pour des limiteurs de surtension enfichables

Publications (2)

Publication Number Publication Date
EP2050105A1 true EP2050105A1 (fr) 2009-04-22
EP2050105B1 EP2050105B1 (fr) 2009-11-25

Family

ID=38324077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07730033A Expired - Fee Related EP2050105B1 (fr) 2006-07-19 2007-06-11 Dispositif de séparation plus particulièrement pour des ecreteurs de surtension enfichables

Country Status (3)

Country Link
EP (1) EP2050105B1 (fr)
DE (1) DE102006042028B3 (fr)
WO (1) WO2008009513A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2009164A3 (cs) * 2009-03-16 2010-09-29 Cernicka@Jozef Zarízení pro prepetovou ochranu
CZ308826B6 (cs) * 2009-10-19 2021-06-23 KIWA sk, s.r.o Zařízení pro přepěťovou ochranu
FR2958789B1 (fr) * 2010-04-09 2012-05-11 Abb France Dispositif de protection contre les surtensions transitoires a deconnecteur thermique ameliore
CN101887790B (zh) * 2010-06-13 2012-07-04 深圳科安达电子科技股份有限公司 防雷用压敏电阻
DE102011100437B4 (de) 2010-10-29 2016-04-07 Dehn + Söhne Gmbh + Co. Kg Anordnung zur Ausbildung einer thermischen Trennstelle
DE102015000331A1 (de) * 2015-01-09 2016-07-14 DEHN + SÖHNE GmbH + Co. KG. Kontaktanordnung für steckbare Überspannungsableiter
ITUB20152327A1 (it) * 2015-07-20 2017-01-20 Zotup S R L Disconnettore perfezionato e scaricatore di sovratensioni comprendente tale disconnettore
DE102018212690A1 (de) * 2018-07-30 2020-01-30 Phoenix Contact Gmbh & Co. Kg Bauraumoptimierte Abtrennvorrichtung
FR3107781B1 (fr) * 2020-02-27 2023-06-30 Legrand France Appareil électrique contre les surtensions transitoires et un dispositif de varistances à détection d’emballement thermique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4042237A1 (de) * 1990-01-08 1991-07-11 Bettermann Obo Ohg Steckbarer ueberspannungsableiter fuer elektrische anlagen
DE9305796U1 (de) * 1993-04-17 1993-06-17 Dehn + Söhne GmbH + Co KG, 8500 Nürnberg Überspannungsschutzanordnung mit einem in einem Gehäuse untergebrachten Varistor
FR2727806A1 (fr) * 1994-12-05 1996-06-07 Soule Sa Dispositif de protection a l'encontre de surtensions transitoires a base de varistances et deconnecteurs thermiques
DE29519313U1 (de) * 1995-12-06 1996-01-25 Dehn + Söhne GmbH + Co KG, 90489 Nürnberg Überspannungsableiter
DE102004024657B4 (de) * 2004-04-02 2006-12-21 Dehn + Söhne Gmbh + Co. Kg Anordnung zum Ableiten von Überspannungen mit parallel geschalteten, in einer baulichen Einheit befindlichen überspannungsbegrenzenden Elementen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008009513A1 *

Also Published As

Publication number Publication date
EP2050105B1 (fr) 2009-11-25
DE102006042028B3 (de) 2007-09-27
WO2008009513A1 (fr) 2008-01-24

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