EP3243242B1 - Kontaktanordnung für steckbare überspannungsableiter - Google Patents

Kontaktanordnung für steckbare überspannungsableiter Download PDF

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Publication number
EP3243242B1
EP3243242B1 EP15798479.0A EP15798479A EP3243242B1 EP 3243242 B1 EP3243242 B1 EP 3243242B1 EP 15798479 A EP15798479 A EP 15798479A EP 3243242 B1 EP3243242 B1 EP 3243242B1
Authority
EP
European Patent Office
Prior art keywords
contact
housing
arrangement according
contact arrangement
shape
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
EP15798479.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3243242A1 (de
Inventor
Li HONGJUN
Xu NIANSHENG
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
Priority to SI201531248T priority Critical patent/SI3243242T1/sl
Publication of EP3243242A1 publication Critical patent/EP3243242A1/de
Application granted granted Critical
Publication of EP3243242B1 publication Critical patent/EP3243242B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01T4/06—Mounting arrangements for a plurality of overvoltage arresters
    • 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
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/05—Resilient pins or blades
    • H01R13/055—Resilient pins or blades co-operating with sockets having a rectangular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • H01R9/2625—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component
    • H01R9/2641—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component with built-in overvoltage protection
    • 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
    • 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

Definitions

  • the invention relates to a contact arrangement for pluggable surge arresters, at least one overvoltage protection element being located in a housing, the housing base of which is penetrated by at least two U-shaped or V-shaped bent tab ends, and furthermore, within the housing, an electrical connection between the contact tabs and the at least one overvoltage protection element is formed, the contact tabs are designed as flat stamped and bent parts, the housing has a rectangular cross section with two opposite narrow sides and the flat stamped and bent parts run at least partially in the respective plane formed by the narrow housing side, according to the preamble of claim 1.
  • Surge arresters of the generic type are from the DE 295 19 313 U1 previously known.
  • Such surge arresters consist of a so-called base part, which is electrically connected to supply and discharge lines of the system to be protected or the device to be protected.
  • the actual overvoltage protection element is located in a plug-in part, which is held detachably and electrically connectable in the lower part by a mechanical plug-in connection.
  • a thermal disconnection device is also provided on the plug-in part in the event of inadmissible heating of the overvoltage protection element, for example a varistor.
  • the lower part or the base or base part consists of a base section and two side sections, which together form approximately the shape of a U.
  • the plug-in part, which receives the surge protection element (s) consists of a housing with at least one supporting wall and contact tabs that penetrate the bottom of the housing with a respective contact tab end.
  • the ends of the contact lugs step onto the cross-section of the ends of the contact lugs coordinated contact counterparts in operative connection, so that care is taken for the necessary electrical contact.
  • connection contacts or contact tab ends are preferably located on the lower narrow end faces of the housing of the plug-in part.
  • the plug contacts or contact tab ends of the plug-in part are loop-shaped, ie bent in a U-shape, both parts of the loop being flowed through in opposite directions by a surge current such that the resulting force effect pushes the corresponding parts of the bracket or U-shaped plug contacts apart and thus whose contact pressure in the plug openings in the base part increases.
  • the contact tabs and contact tab ends are preferably made from a metallic sheet material using a stamping and bending technique known per se.
  • an external connection contact of the pluggable surge arrester is designed as a metallic molded part, which has an integral extension leg. This extension leg has an end leading to the solder connection, that is to say the separation point, which has a U-shape.
  • the metallic molded part is under natural spring prestress, the prestressing direction coinciding with the separating movement.
  • the metallic molded part can with the Extension legs have stability-enhancing contours that can be implemented as a bead or bend.
  • the DE 195 19 785 C1 shows a pluggable surge protection for terminal strips in telecommunications technology.
  • the overvoltage protection has a housing and connection contacts for the wire to be protected or for an earth connection.
  • a ground contact there is made in one piece from metal and connects a spring-shaped section to two further molded spring contacts which, when a thermal isolating device is triggered, bear against corresponding wire contacts of the surge arrester.
  • the spring contacts are formed on a U-shaped section, a recess being formed in the base of the U-shaped section, into which a tongue of this element engages when the thermal separation element is not triggered.
  • At least one surge protection element in particular a varistor, being located in an insulating housing, the housing base of which can be penetrated by at least two U-shaped or V-shaped contact tab ends.
  • the above-mentioned contact tab ends are used to contact the surge arrester plug-in part with corresponding mating contacts, which are located in a base part, which is connected to the system to be protected.
  • the design of surge arresters as a plug-in part offers the advantage that, in the event of a fault, the overvoltage protection element which is received by the plug-in part can be easily replaced can be done without having to disconnect electrical terminals. There is also the option of connecting test and measurement devices to the base part by pulling the plug-in element in order to carry out tests on electrical systems.
  • Corresponding electrical connections can be formed between the contact lugs and the at least one overvoltage protection element within the aforementioned housing. If necessary, there is the option of integrating a thermal disconnection device in the housing in order to protect the actual surge protection element against overload, to disconnect it from the mains or to bring about a targeted short-circuit condition.
  • the contact tabs are designed as flat stamped and bent parts and preferably consist of a metallic material.
  • the housing has a rectangular cross section with two opposite narrow sides, the flat stamped and bent parts at least partially running in the respective plane formed by the narrow side of the housing.
  • At least one of the contact tabs has a section which is matched to or corresponds to the width of the narrow housing side or a housing side. This means that the available width of the housing is used as far as possible for the respective section of the contact tabs.
  • this section has a notch which is bent into the area of the respective contact tab end for reinforcement.
  • the contact tab ends usually have only a limited width, it is possible to ensure the required surge current resistance of the contact arrangement by means of the reinforcement using the notched section of the contact tabs.
  • the width of the contact lug ends can be chosen to be smaller than the width of the further sections of the contact lugs, which is advantageous with regard to the separation distances in the case of a multi-row arrangement of plug parts in a correspondingly multi-row base part.
  • the reinforcement of the contact lug ends by notching and bending a surface section not only leads to improved electrical properties of the contact arrangement, but also increases the mechanical stability of the contact lug end in the region of the U-shaped or V-shaped bend or, in the case of a J-shaped contact, the stability in the Area of the shorter J-leg. This ensures the necessary contact reliability even when the plug is pulled and reinserted several times.
  • At least one flat extension extends from the housing base in the direction of the respective contact lug end in such a way that this flat extension can penetrate into the open area of the U or V shape of the contact lug end. This ensures a further mechanical stabilization of the corresponding contact tab end. A possibly too extensive compression of the contact lug ends with an undesirable reduction in the spring forces necessary to secure the contact is prevented or excluded thereby.
  • At least one of the contact tabs can have a J shape, the notch being realized in the region of the longer leg of the J.
  • the notch in a contact lug in the form of a J is bent in the direction of the shorter leg of the J.
  • a surface section for electrical connection to the respective surge protection element is configured.
  • This electrical connection is preferably a soldered or welded contact.
  • the notch in the area of the longer leg of the J-shaped contact has the positive effect that an undesired heat dissipation with the consequence of a delayed response of a thermal separation device can be reduced when the overvoltage protection element heats up under load.
  • the largest possible area available in the housing for the contact tab is used, the effect of the corresponding contact tab as an undesirable heat sink is reduced by the notch created.
  • an increase in the thickness of the material of the flat stamped and bent part can be provided in the region of the contact lug end.
  • This can be realized in an expedient manner by a materially bonded connection with a further stamped and bent part, wherein this additional part can have additional functions, in particular in the case of the formation of this part as an element of a thermal separation device.
  • Fig. 1 shows an overvoltage protection arrangement 11, which comprises a base or base part 2 and a plug-in part 1.
  • At least one overvoltage protection element e.g. trained as a varistor.
  • the base part 2 is suitable for top hat rail mounting and has means for electrical contacting on the opposite end faces, i.e. for connection to a system to be protected.
  • the plug-in part 1 consists of an insulating housing with a housing base. Two U or V-shaped contact tabs 3 extend from the housing base in the direction of the base part 2.
  • the contact arrangement according to Fig. 2a is based on a contact lug 3 which is J-shaped in shape and is realized as a stamped and bent part.
  • the contact lug end comprises a longer end 9 and a shorter end 8, both ends being bent into a U-shape.
  • a notch 7 is bent into the area between the ends 8 and 9 and leads to mechanical and electrical reinforcement.
  • a flat extension 6 fills the remaining space between sections 8 and 9. This flat extension 6 can be formed as a part that extends from the bottom of the housing of the plug-in part 1.
  • Fig. 2b makes it clear how the corresponding contact arrangement behaves after insertion into the opening or recess 5 of the contact counterpart 4.
  • Section 8 of the contact lug end has resilient properties, the dimensions of the parts or sections 8, 6 and 9 being realized in connection with the corresponding end of the notch 7 in such a way that a firm fit in the opening or recess 5 in the contact counterpart 4 is ensured.
  • the total thickness S 'from the parts 8, 7, 6 and 9 is approximately the same or a small amount larger than the dimension S of the opening 5 in the counter-contact piece 4.
  • Fig. 3 shows again the formation of the J-contact 3 with a noticeable notch 7, bent into the section between the short leg 8 and the longer leg 9 of the contact tab end, technologically first notching and bending the part 7 and then the U-shaped bend to obtain the short leg 8 is performed.
  • the desired surge current carrying capacity results in the area of the contact lug ends, so that further possible uses of the surge arresters equipped with it open up.
  • Fig. 4 shows a further embodiment of a contact lug 31, wherein a notch 7 is also bent into the area between the short leg 8 and long leg 9 of the contact arrangement.
  • a further contact component 12 which is part of a thermal Disconnect device can be.
  • This component 12 also manufactured by stamping and bending, is cohesively connected to one of the preformed contact arrangements, an integral extension 71 of the part 12 providing the desired reinforcement in the area between the legs 8 and 9 of the contact arrangement.
  • the end of the contact lug shown opposite sections 8 and 9 has a surface section 33 which is designed for electrical connection to the respective overvoltage protection element located in plug-in part 1, in particular by soldering.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Thermistors And Varistors (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP15798479.0A 2015-01-09 2015-11-25 Kontaktanordnung für steckbare überspannungsableiter Active EP3243242B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201531248T SI3243242T1 (sl) 2015-01-09 2015-11-25 Kontaktna razporeditev za vtične prenapetostne odvodnike

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015000331.3A DE102015000331A1 (de) 2015-01-09 2015-01-09 Kontaktanordnung für steckbare Überspannungsableiter
PCT/EP2015/077615 WO2016110360A1 (de) 2015-01-09 2015-11-25 Kontaktanordnung für steckbare überspannungsableiter

Publications (2)

Publication Number Publication Date
EP3243242A1 EP3243242A1 (de) 2017-11-15
EP3243242B1 true EP3243242B1 (de) 2020-04-15

Family

ID=54697596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15798479.0A Active EP3243242B1 (de) 2015-01-09 2015-11-25 Kontaktanordnung für steckbare überspannungsableiter

Country Status (6)

Country Link
EP (1) EP3243242B1 (zh)
CN (1) CN107112656B (zh)
DE (1) DE102015000331A1 (zh)
ES (1) ES2805540T3 (zh)
SI (1) SI3243242T1 (zh)
WO (1) WO2016110360A1 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10319545B2 (en) 2016-11-30 2019-06-11 Iskra Za{hacek over (s)}{hacek over (c)}ite d.o.o. Surge protective device modules and DIN rail device systems including same
US10707678B2 (en) 2016-12-23 2020-07-07 Ripd Research And Ip Development Ltd. Overvoltage protection device including multiple varistor wafers
US10447026B2 (en) 2016-12-23 2019-10-15 Ripd Ip Development Ltd Devices for active overvoltage protection
US10340110B2 (en) 2017-05-12 2019-07-02 Raycap IP Development Ltd Surge protective device modules including integral thermal disconnect mechanisms and methods including same
US10685767B2 (en) 2017-09-14 2020-06-16 Raycap IP Development Ltd Surge protective device modules and systems including same
US11223200B2 (en) 2018-07-26 2022-01-11 Ripd Ip Development Ltd Surge protective devices, circuits, modules and systems including same
CN109625327B (zh) * 2018-12-10 2022-03-18 上海卫星装备研究所 适用于真空环境的热熔断解锁释放装置
DE102019203166A1 (de) * 2019-03-08 2020-09-10 Zf Friedrichshafen Ag Verbindung einer Stromschiene mit einem weiteren stromführenden Element
DE102019207131B4 (de) * 2019-05-16 2020-12-10 Phoenix Contact Gmbh & Co. Kg Baugruppe
US11862967B2 (en) 2021-09-13 2024-01-02 Raycap, S.A. Surge protective device assembly modules
US11723145B2 (en) 2021-09-20 2023-08-08 Raycap IP Development Ltd PCB-mountable surge protective device modules and SPD circuit systems and methods including same
US11990745B2 (en) 2022-01-12 2024-05-21 Raycap IP Development Ltd Methods and systems for remote monitoring of surge protective devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19519785C1 (de) * 1995-05-30 1996-08-29 Quante Ag Steckbarer Überspannungsschutz
EP3243209A1 (de) * 2015-01-09 2017-11-15 Dehn + Söhne GmbH + Co. KG Überspannungsschutzgerät mit im thermischen überlastfall aktivierter mechanischer abtrennvorrichtung

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FR2330159A1 (fr) * 1975-10-27 1977-05-27 Carpano & Pons Organe de serrage pour le raccordement de conducteurs electriques
DE2621101C3 (de) * 1976-05-10 1980-09-11 Krone Gmbh, 1000 Berlin Überspannungsableitervorrichtung für Kabelabschlußgeräte der Fernmeldelinientechnik
AT362005B (de) * 1976-08-18 1981-04-27 Wago Kontakttechnik Gmbh Elektrische anschluss- oder verbindungsvor- richtung
DE8113381U1 (de) * 1981-05-07 1981-09-10 Karl Lumberg GmbH & Co, 5885 Schalksmühle Anschlußklemme für elektrische Leitungsdrähte
DE9000312U1 (de) * 1990-01-12 1991-05-08 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal Lötkontakt für eine Leiterplatte
DE29519313U1 (de) 1995-12-06 1996-01-25 Dehn + Söhne GmbH + Co KG, 90489 Nürnberg Überspannungsableiter
FR2757691B1 (fr) * 1996-12-20 1999-01-22 Pouyet Sa Procede de realisation d'une reglette d'interconnexion de lignes telephoniques ou informatiques, et reglette obtenue par ce procede
DE19917142C1 (de) * 1999-04-16 2001-01-11 Broekelmann, Jaeger & Busse Gmbh & Co Schraubenlose Anschluß- oder Verbindungsklemme für elektrische Leiter
RU2396623C2 (ru) * 2005-05-04 2010-08-10 Кива Спол. С.Р.О. Устройство защиты от перенапряжения
CZ301709B6 (cs) * 2005-05-04 2010-06-02 Kiwa Spol. S R. O. Prepetová ochrana
DE102006042028B3 (de) * 2006-07-19 2007-09-27 Dehn + Söhne Gmbh + Co. Kg Abtrennvorrichtung für insbesondere steckbare Überspannungsableiter
DE102007004342A1 (de) * 2006-12-05 2008-06-19 Dehn + Söhne Gmbh + Co. Kg Steckbarer Überspannungsableiter
DE202007006934U1 (de) * 2006-12-05 2007-07-19 Dehn + Söhne Gmbh + Co. Kg Steckbarer Überspannungsableiter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19519785C1 (de) * 1995-05-30 1996-08-29 Quante Ag Steckbarer Überspannungsschutz
EP3243209A1 (de) * 2015-01-09 2017-11-15 Dehn + Söhne GmbH + Co. KG Überspannungsschutzgerät mit im thermischen überlastfall aktivierter mechanischer abtrennvorrichtung

Also Published As

Publication number Publication date
EP3243242A1 (de) 2017-11-15
ES2805540T3 (es) 2021-02-12
CN107112656B (zh) 2019-10-01
CN107112656A (zh) 2017-08-29
DE102015000331A1 (de) 2016-07-14
WO2016110360A1 (de) 2016-07-14
SI3243242T1 (sl) 2020-08-31

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