EP0746071B1 - Dispositif enfichable de protection contre les surtensions - Google Patents

Dispositif enfichable de protection contre les surtensions Download PDF

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Publication number
EP0746071B1
EP0746071B1 EP96106189A EP96106189A EP0746071B1 EP 0746071 B1 EP0746071 B1 EP 0746071B1 EP 96106189 A EP96106189 A EP 96106189A EP 96106189 A EP96106189 A EP 96106189A EP 0746071 B1 EP0746071 B1 EP 0746071B1
Authority
EP
European Patent Office
Prior art keywords
protection element
thermal protection
contact
overvoltage protector
housing
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.)
Expired - Lifetime
Application number
EP96106189A
Other languages
German (de)
English (en)
Other versions
EP0746071A1 (fr
Inventor
Johann Hajok
Klaus-Dieter Burmeister
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.)
3M Deutschland GmbH
Original Assignee
Quante GmbH
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 Quante GmbH filed Critical Quante GmbH
Publication of EP0746071A1 publication Critical patent/EP0746071A1/fr
Application granted granted Critical
Publication of EP0746071B1 publication Critical patent/EP0746071B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/08—Overvoltage arresters using spark gaps structurally associated with protected apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6666—Structural association with built-in electrical component with built-in electronic circuit with built-in overvoltage protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00—Details of spark gaps
    • H01T1/12—Means structurally associated with spark gap for recording operation thereof

Definitions

  • the present invention relates to a pluggable Surge protection for terminal strips of the Telecommunications technology.
  • a conventional surge protection is from the EP 0 471 167 and has a housing with one Connection contact for the wire to be protected and for one Earth discharge and one arranged in the housing Surge arrester on.
  • a mechanically preloaded Thermal protection element is here by heating the Surge arrester can be triggered.
  • the thermal protection element Metallic slide that is conductive with a solder joint a sheet metal part is connected. Lies on the sheet metal part contacting the surge arrester, which by a internal gas discharge surges to earth dissipates and heats up. To be longer at one sustained surge arrester warming To avoid destruction of the protective plug, the thermal protection element, that is mechanically biased by a spring is triggered and separated by the heating of the solder joint the contact of the surge arrester with one Earth sheet on.
  • Another pluggable surge protection is out of the EP 0 338 187 and consists of a one-piece, plastic housing open on one side, in which Surge arresters are arranged. With a permanent Ignition of the surge arrester melts through the resulting heat a so-called melting pill, whereby a springy shorting bar a connection with the common earth manufactures and short-circuits the surge arrester. Also here are several for the manufacture of the surge arrester Components required that are manufactured separately and need to be assembled.
  • a similar surge protector is from the EP 0 548 587 A1 and has a spacer, which is made of thermoplastic.
  • EP 0 312 729 A1 Thermal protection device known in an upward open chamber with a U-shaped bracket spring Preload is used.
  • a surge arrester Next to this chamber is in another chamber a surge arrester, where both chambers through a thin partition from one thermoplastic are separated from each other. By the heating of the surge arrester at high Temperatures this partition becomes plastic, so that the Spring arms of the bow spring pierce the partition and so the Short-circuit the surge arrester.
  • the thermal protection element by heating the Surge arrester can be triggered, made of plastic thermoplastic properties. This can the thermal protection element directly by the heat of the Surge arresters are triggered without a Heat transfer via additional components such as Legs Soldering point, a melting pill or a partition is required is. At the same time, the thermal protection element can be removed Plastic with an extremely high reproducibility Manufacture so that no manufacturing or assembly-related Fluctuations in the triggering time can occur.
  • the solution according to the invention is considerable Cost savings due to the small number of used parts and easy assembly.
  • the Thermal protection element on an insulation section which itself in the initial state between the surge arrester and an earth contact.
  • the thermal protection element is through heating of the surge arrester can be triggered and is mechanically biased so that when the Thermal protection element of the insulation section between the Surge arrester and the earth contact is moved out.
  • the surge arrester and the earth contact in electrically contacting contact with each other, so that the surge arrester against earth is short-circuited and does not heat up further.
  • the thermal protection element have a section that on the Surge arrester is present. This will turn on advantageously achieved that only a limited Part of the thermal protection element, namely the subsection, is present at the surge arrester and from there Ignition correspondingly strong when overvoltage is present is heated.
  • a Tongue the thermal protection element against the mechanical Lock the bias preferably in a recess in the Earth contact. This allows an exceptionally good one Achieve the thermal protection element, because the Trigger just removed the tongue from the recess must become. After heating the section, the melts on this molded tongue and thereby releases the lock, so that the thermal protection element is moved by the bias is and the contact between the surge arrester and releases an earth contact.
  • the thermal protection element can have a recess for material have that through the thermal contact with the Surge arrester melts. This makes it easy Way ensured that the thermal protection element reproducible triggers and not despite melting the Section jammed because the melted material itself can go into the recess. It is particularly advantageous here if the recess is in the area in the melted material during the melting process is pressed by the force of the mechanical preload.
  • the surge arrester is a three-pole arrester and the Earth contact can be applied to the surge arrester be.
  • This resilient application ensures that that when the thermal protection element is triggered reliably Contact between the earth and the surge arrester will be produced.
  • the fine protection component consists of three Suppressor diode chips on a ceramic substrate with the Advantage of higher pulse capacity, direct heat coupling of the three diode chips and small size, and two Resistances.
  • a three-pole arrester is used for a pluggable surge protection for a to be protected Twin wire advantageous.
  • the housing of the surge protection have a viewing window through that a part of the triggered thermal protection element is visible is. This makes it immediately apparent from the outside whether a thermal protection element has been triggered by the viewing window is looked at. This part is not triggered of the thermal protection element is not visible.
  • the corresponding part of the thermal protection element or also the entire thermal protection element in a striking Color are advantageously visible.
  • connection contact for the wire to be protected on one printed circuit board designed like a plug contact, on the other electronic components such as resistors and Semiconductors are contacted as fine protection.
  • a particularly space-saving embodiment of the Invention can be a resistor and a semiconductor device, for example a diode array on the circuit board be arranged one above the other. This allows the pluggable surge protection particularly space-saving produce.
  • a two-part design of the housing again facilitates assembly.
  • the Thermal protection element can be designed like a slide, wherein the tongue on a substantially U-shaped contour of the Thermal protection element is molded.
  • the tongue and the contour to the Longitudinal extension of the thermal protection element in opposite directions run at an angle. This results in a special one good, resilient contact of the contour on the surge arrester, which increases functional reliability.
  • the Surge protection according to the invention according to a further Embodiment advantageously one from the outside accessible contour, into which a pulling hook or a Screwdriver or the like can be used to to remove the surge protector from the terminal block.
  • the surge protection shown in Fig. 1 for Terminal strips of telecommunications technology is on one Printed circuit board 10, on which a diode array 12 and two resistors 14 are soldered, the resistors 14 above the diode array 12 or a hybrid module consisting of Diodes and resistors as an SMD component, are arranged to Save space.
  • a three-pole surge arrester 16 is also on the basically elongated training PCB contacted.
  • the circuit board 10 has on her lower end two parallel, plug-in trained Areas 17 on.
  • a thermal protection element 18 and an earth contact 19 are in Fig. 1 also shown and cause grounding prolonged heating of the surge arrester 16 in pluggable surge protection and the following connected components of the telecommunications system.
  • circuit board 10 is with brackets 74 provided that the middle ground connection of the Contact surge arrester 16 with spring contact.
  • the thermal protection element 18 shown in FIG. 2 exists made of plastic with thermoplastic properties and is in formed essentially slide-like. In his lower The thermal protection element 18 has two crowned areas molded areas 20 and 21, which is a partial plant of the thermal protection element 18 on the cylindrical Allow surge arrester 16. Between the crowned Areas 20, 21 have a rectangular opening 22 formed in which projects a U-shaped contour 24, the two Leg of the U-shaped contour 24 to the lower region 20 adjoin. At the base of the U-shaped contour 24, the one Forms partial area 28, a tongue 26 is in one piece molded.
  • the portion 28 can the melting material get into the recess 30 which through the contour 24 in whose interior is formed.
  • the thermal protection element shown in FIG. 2 18 is another rectangular opening 32 formed in the two guide pins 33 and 34 in Longitudinal direction of the thermal protection element are arranged.
  • the longer pin 33 and the shorter pin serve 34 to fix a spring 36 (see. Fig. 3).
  • the upper Area 38 of the thermal protection element shown in FIG. 2 is shown rasterized, is made in red color, so that it can easily be seen through a window 66 in one Housing 40 (see FIG. 3) can be recognized after the Thermal protection element has been triggered.
  • FIG. 3 shows the circuit board 10 on which the Diode array 12, the resistors 14 and the Surge arrester 16 are contacted in a two-part housing 40 inserted, only in Fig. 3 a housing half is shown.
  • the in Fig. 1st shown plug-contact-like extensions 17 of the circuit board 10 are not in a row of contacts
  • Two-row terminal block 42 shown in FIG. 3) inserted, the terminal block being inserted
  • Earth rail 44 has a C-shaped cross section is formed and openings 45 in this area has, in each case a spring-like shaped section 46 of the earth contact 19 can be inserted.
  • the earth contact 19, which can also be clearly seen in FIG. 1, is made in one piece from metal and connects the spring-shaped section 46 with two others molded spring contacts 48 and 50, which are triggered in the State of the thermal protection element 18 on the two Wire contacts 60, 61 of the surge arrester 16 are present (Fig. 3).
  • the two contacts 48 and 50 are U-shaped U-shaped section 52 is formed, at the base of the Section a recess 54 is formed in those in the non-triggered state of the thermal protection element 18 engages the tongue 26 of the thermal protection element 18 (cf. Fig. 4).
  • the thermal protection element 18 is, as shown in Fig. 3, biased by the spring 36 which over the short pin 34th and the long pin 33 is inserted. To accommodate the The spring 36 bears against a housing projection 58 and thereby exercises a vertically upward in Fig. 3 Force on the thermal protection element 18.
  • Fig. 4 shows in detail the interaction of the earth contact 19, the thermal protection element 18 and the Surge arrester 16 in the non-triggered state. How can be clearly seen, presses that not shown in Fig. 4 Spring 36 the thermal protection element 18 in FIG. 4 upwards, however, the tongue 26 in the recess 54 of the Earth contact 19 engages so that the relative position between earth contact 19 and thermal protection element 18 which in Fig. 4 is shown. In this position the Section 28 (see also Fig. 2) of the U-shaped Contour 24 resiliently on the surge arrester 16 and is by the angled formation of the contour 24 against this biased. An electrical contact between the Wire contacts 60 and 61 of the surge arrester 16 with the Spring contacts 48 and 50 of the earth contact 19 is, however avoided by insulation sections 62, 64 by the Material section of areas 21 and 20 (see FIG. 2) are formed.
  • the surge protector is usually in one Terminal block 42 of the telecommunications technology inserted, wherein the plug-in regions 17 of the Printed circuit board 10 in corresponding plug contacts Terminal block are there and only one of two Cover rows of contacts.
  • the spring-like region 46 of the Earth contact 19 is in the opening 45 of the earth rail 44 inserted.
  • the housing 40 with a graspable from the outside Provided contour 68, in which a pulling hook 70 one Wiring instrument can be used.
  • the split housing 40 is provided with corresponding detents 72 provided so that only the component shown in Fig. 1 be inserted into the housing 40 together with the spring 36 must, whereupon this can then be put together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Fuses (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Cable Accessories (AREA)

Claims (18)

  1. Dispositif enfichable de protection contre les surtensions, destiné à des barres de connexion (42) du domaine technique des télécommunications, et comprenant
    un boítier (40),
    un contact de connexion respectif (17, 46) pour le conducteur à protéger et pour une prise de terre,
    un éclateur de protection (16) disposé dans le boítier (40), et
    un élément de protection thermique (18) en une matière plastique à propriétés thermoplastiques,
    qui présente un tronçon isolant (62, 64) se trouvant à l'état initial, entre l'éclateur de protection (16) et un contact de terre (19),
    l'élément de protection thermique (18) étant susceptible d'être déclenché par un échauffement de l'éclateur de protection (16) et étant précontraint mécaniquement de façon telle,
    que lors d'un déclenchement de l'élément de protection thermique (18), le tronçon isolant (62, 64) soit extrait de sa position entre l'éclateur de protection (16) et le contact de terre (19) de sorte que ceux-ci viennent se toucher en établissant le contact.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'élément de protection thermique (18) présente un tronçon partiel (28) qui s'appuie sur l'éclateur de protection (16).
  3. Dispositif selon la revendication 2, caractérisé en ce qu'une languette (26) de l'élément de protection thermique (18) verrouille celui-ci, à l'encontre de la précontrainte, de préférence dans un évidement (54) du contact de terre.
  4. Dispositif selon la revendication 2 et 3, caractérisé en ce qu'une fusion du tronçon partiel (28), en raison d'un échauffement de l'éclateur de protection (16), produit un déverrouillage de l'élément de protection thermique (18).
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'élément de protection thermique (18) présente un évidement (30) pour du matériau (28) qui fond par contact de transmission de chaleur avec l'éclateur de protection (16).
  6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la précontrainte mécanique est effectuée par un ressort (36), qui précontraint l'élément de protection thermique (18) contre un contour de boítier (58).
  7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'éclateur de protection est un éclateur à trois pôles (16).
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le contact de terre (19) peut être appliqué de manière élastique contre le contact de conducteur (60, 61) de l'éclateur de protection (16).
  9. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le contact de terre (19) s'applique de manière élastique contre la prise de terre (74) de l'éclateur de protection (16).
  10. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le boítier (40) présente une fenêtre de visualisation (66) au travers de laquelle on peut apercevoir une partie (38) de l'élément de protection thermique (18) ayant été déclenché.
  11. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le contact de connexion (17) pour le conducteur à protéger, est prévu en tant que plaque de circuit imprimé (10) du type à contacts enfichables, sur laquelle sont implantés et connectés d'autres composants électroniques tels que des résistances (14) et des semi-conducteurs (12) en guise de protection fine.
  12. Dispositif selon la revendication 11, caractérisé en ce que la plaque de circuit imprimé (10) est déposée librement dans le boítier (40) de préférence en deux parties.
  13. Dispositif selon la revendication 11 ou 12, caractérisé en ce que l'éclateur de protection (16) est connecté sur la plaque de circuit imprimé (10).
  14. Dispositif selon la revendication 11, 12 ou 13, caractérisé en ce qu'une résistance (14) et un composant semi-conducteur (12) ou un module hybride sont disposés l'un au-dessus de l'autre sur la plaque de circuit imprimé (10).
  15. Dispositif selon l'une des revendications 1 à 14, caractérisé en ce que le contact de terre (19) comporte un tronçon (46) en forme languette de ressort, destiné à s'engager dans des ouvertures de passage (45) d'une barre de mise à la terre (46).
  16. Dispositif selon l'une des revendications 3 à 15, caractérisé en ce que l'élément de protection thermique (18) présente une configuration en forme de coulisseau, et en ce que la languette (26) est formée par moulage sur un contour (24) sensiblement en forme de U.
  17. Dispositif selon la revendication 16, caractérisé en ce que la languette (26) et le contour (24) s'étendent en étant coudés dans des sens opposés par rapport à l'étendue longitudinale de l'élément de protection thermique (18).
  18. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le boítier (40) présente un contour (68) à prise extérieure en contre-dépouille, dans lequel peut être inséré un crochet d'extraction (70) destiné à démonter le dispositif de protection contre les surtensions d'une barre de connexion (42).
EP96106189A 1995-05-30 1996-04-19 Dispositif enfichable de protection contre les surtensions Expired - Lifetime EP0746071B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19519785A DE19519785C1 (de) 1995-05-30 1995-05-30 Steckbarer Überspannungsschutz
DE19519785 1995-05-30

Publications (2)

Publication Number Publication Date
EP0746071A1 EP0746071A1 (fr) 1996-12-04
EP0746071B1 true EP0746071B1 (fr) 1998-08-05

Family

ID=7763207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96106189A Expired - Lifetime EP0746071B1 (fr) 1995-05-30 1996-04-19 Dispositif enfichable de protection contre les surtensions

Country Status (4)

Country Link
EP (1) EP0746071B1 (fr)
AT (1) ATE169429T1 (fr)
DE (2) DE19519785C1 (fr)
ES (1) ES2122738T3 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19722580C1 (de) * 1997-05-30 1998-10-15 Krone Ag Überspannungsschutzstecker mit Fail-Safe
DE29805313U1 (de) 1998-03-17 1998-06-10 Elmeg Gmbh Kommunikationstechnik, 31228 Peine Telekommunikationsanlage
DE29909701U1 (de) * 1999-06-02 1999-09-09 Quante Ag, 42109 Wuppertal Schutzstecker für eine Einrichtung der Telekommunikationstechnik
DE10029650A1 (de) * 2000-06-15 2002-01-03 Krone Ag Sammelerde und Schutzstecker für eine Schalt- oder Trennleiste in der Telekommunikations- und Datentechnik
DE10125941B4 (de) * 2001-03-13 2009-09-17 Dehn + Söhne Gmbh + Co. Kg Kompaktanordnung für mehrpolige stoßstromfeste Überspannungsableiter
DE20203911U1 (de) * 2002-03-11 2003-07-17 3M Innovative Properties Co., St. Paul, Minn. Kontaktfeld, Messanordnung mit einem Kontaktfeld und Anschluss-, Trenn- oder Zusatzmodul der Telekommunikationstechnik mit einem Kontaktfeld oder einer Messanordnung
US20060256931A1 (en) 2002-03-11 2006-11-16 Udo Bendig Contact bank measurement arrangement including a contact bank telecommunications module provided with contact bank or a measurement arrangement and telecommunications assembly including plural modules
DE10247871A1 (de) * 2002-10-14 2004-04-22 Ccs Technology Inc., Wilmington Verteilereinrichtung einer Telekommunikationsanlage sowie Schutzeinrichtung für eine Verteilereinrichtung
DE102007042989A1 (de) * 2007-05-29 2008-12-04 Dehn + Söhne Gmbh + Co. Kg Kurzschließeinrichtung für Überspannungsableiter
DE102015000331A1 (de) * 2015-01-09 2016-07-14 DEHN + SÖHNE GmbH + Co. KG. Kontaktanordnung für steckbare Überspannungsableiter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820272C1 (fr) * 1987-10-20 1989-04-06 Krone Ag, 1000 Berlin, De
DE3813889C1 (fr) * 1988-04-20 1989-04-06 Krone Ag, 1000 Berlin, De
DE4026004A1 (de) * 1990-08-14 1992-02-20 Krone Ag Schutzschaltung und schutzstecker in telekommunikationsanlagen
CH683048A5 (de) * 1991-12-24 1993-12-31 Cerberus Ag Ueberspannungsschutzvorrichtung.

Also Published As

Publication number Publication date
ATE169429T1 (de) 1998-08-15
ES2122738T3 (es) 1998-12-16
EP0746071A1 (fr) 1996-12-04
DE59600399D1 (de) 1998-09-10
DE19519785C1 (de) 1996-08-29

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