EP2179479A2 - Fiche de raccordement formee par un procede de compression a l'etat fondu - Google Patents

Fiche de raccordement formee par un procede de compression a l'etat fondu

Info

Publication number
EP2179479A2
EP2179479A2 EP08801133A EP08801133A EP2179479A2 EP 2179479 A2 EP2179479 A2 EP 2179479A2 EP 08801133 A EP08801133 A EP 08801133A EP 08801133 A EP08801133 A EP 08801133A EP 2179479 A2 EP2179479 A2 EP 2179479A2
Authority
EP
European Patent Office
Prior art keywords
plug
pin according
pin
connector
extrusion
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
EP08801133A
Other languages
German (de)
English (en)
Other versions
EP2179479B1 (fr
Inventor
Michael Taller
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.)
TALLER, MICHAEL
Original Assignee
Global Genius (Hong Kong) 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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40244976&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2179479(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE200710038219 external-priority patent/DE102007038219B3/de
Priority claimed from DE200710062500 external-priority patent/DE102007062500A1/de
Application filed by Global Genius (Hong Kong) Ltd filed Critical Global Genius (Hong Kong) Ltd
Publication of EP2179479A2 publication Critical patent/EP2179479A2/fr
Application granted granted Critical
Publication of EP2179479B1 publication Critical patent/EP2179479B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting

Definitions

  • the present invention relates to the Oberansprifflflieh claimed and thus deals with connector pins, their manufacture and use.
  • Pins are known per se. They are used in plugs of electrical equipment to allow contact between the electrically conductive wire of the power cord to the live contacts in a power outlet.
  • Plug pins are typically fixed in connector bridges, in which they are cast in geometrically correct distance from each other and with the correct supernatant in electrically insulating plastic material.
  • the plug bridge may include earth spring clips, as well as filter elements and the like in certain applications.
  • the strands of a mains connection cable are then first stripped of insulation and subsequently firmly connected to the connection ends of the connector pins. After striking the strands, the handle body is formed around the connection area, typically with injection molded PVC. The handle body isolates the contacts from contact and may provide strain relief, etc.
  • the electrical connector pin should be inserted into a power outlet and an electrically conductive core with a contact area for electrically contacting the power outlet and a connection area for contacting an electrical Component should have. It is stated in DE 102 03 171 Al that the electrically conductive core is produced in an extrusion molding process.
  • the electrically conductive core should serve in particular for a European plug and be encased in a central area with an electrically insulating sheath.
  • An electrical connector essentially consisting of two identically directed plug contact parts or of a plug contact part and a rectified to the latter connection part, wherein in the region of the transition of the two parts in communication with each other vorste- Hender, at least approximately over the entire circumference of the connector extending, ending in sharp edges, flange-like position stop is provided, is known from DE 103 23 850 C2. It is stated that the position stop should be formed by an annular outer region of a circular end element integrally formed on one end of one of the two parts or of a circular separating element located between the two parts. Although a non-cutting production is stated, it does not explicitly address extrusion press forming.
  • Extrusion forming is also mentioned in DE 100 41 516 A1, which, however, relates to an electrical connection device for high currents with a receptacle for an electrical conductor, to which the connection device is permanently attached, and a resilient plug contact for connection to a mating connector.
  • the resilient ends shown make the arrangement for power plugs unsuitable.
  • a multi-part arrangement is shown.
  • a deformation of a metal alloy by extrusion for the production of electrical brush contacts is known from US-PS 4,597,281.
  • brush contacts are to be manufactured with different diameter at opposite ends in a multi-stage process.
  • the object of this invention is to provide new products for commercial use.
  • the present invention thus proposes, in a first aspect, a connector pin having a connection end for connection to a power cord and a molded with the extrusion forming leading from the connection end to a socket contact side contact end central region, wherein it is provided that the connection end as a crimp end and the central region at least in Is essentially hollow.
  • a first essential aspect of the present invention is the recognition that the pin can be substantially improved by providing hollow shaping of the central portion simultaneously with the creation of a crimp end.
  • the center region even when hollowed, receives a change in material properties through extrusion molding. This is especially true when the pin is made of solid material, which is possible, but not mandatory.
  • the change in the characteristic of the middle region occurring during extrusion molding surprisingly leads to an improvement in the mechanical stability thereof, so that no kinking or other deformation is to be expected even with a comparatively thin wall formation of the central region and thus a high material saving, as is the case for example Trummelfall bathen may occur, which plug bridges are regularly subjected to obtain a license.
  • a heat treatment can be provided. This can take the form of a thermal after-treatment of pre-fabricated or partially manufactured connector pins or by hot extrusion forming, that is, extrusion molding of a preheated material.
  • the cavity in the central region toward the plug handle body can also be closed by a suitable crimping, namely, with proper execution of the crimping, as achieved on an industrial scale without further ado. bar, plastic fluid-tight, neither penetration of PVC into the cavity to be feared, nor a concomitant additional material consumption. It is also not necessary to isolate the connection area by additional material. This not only reduces the cost of the overall connector by saving on material, but also saves transport weight, which is of increasing importance in the global transport, for example when connector bridges, Metztent and electrical appliances are made in other places and then the finished electrical appliances to the consumer long distances should be spent.
  • connection end is widened network connection slot side. This facilitates the striking, ie feeding the power cord.
  • the superior plastic funnel can be integral with a Stecker viten ground- body, in which the pin is potted, and / or to attach to this.
  • connection end may also depend on which country the respective pin is intended, since with certain connector pins geometries in the base plate different feeds of the power cord can be preferred. Reference is made in this respect to differences between about plugs for Germany and plugs for Great Britain. It should be mentioned, moreover, that the plug pin can be intended for connection to a neutral or phase conductor as well as for contacting a ground or ground connection. As a pin in the present case also understood a pin, which is not only intended for the conventional 240 or 120 volt AC power, but also such a pin, as it is used for plug in three-phase networks.
  • connection end With a funnel-shaped preferred extension of the connection end, an extension can be given to a degree in which the introduction of forming means from the connection end is possible.
  • forming means can - in particular multi-stage acting - punches are used, as well as (hydrostatic) active fluids. It should be noted that the present invention allows both possibilities, but the multi-stage forward extrusion forming is particularly preferred.
  • the earthing contact plug as already stated, preferably be dimensioned for power plugs and in particular for double protection or safety contact plug European standard.
  • the pin Since the pin is intended and suitable for use in plug bridges, it is preferred if, close to the connection end in that area which is wrapped in the plug bridge formation of plastic, a shaping is made, the pin against torsion or free rotation in the connector bridge plastic mass and / or protects against undressing.
  • a shaping is made, the pin against torsion or free rotation in the connector bridge plastic mass and / or protects against undressing.
  • recesses or impressions have proven, ie Shapes that break a circular symmetry of the plug pin in the region of the plug bridge plastic mass or in the area that is provided for wrapping by plug bridge plastic mass. Shaping may be done during extrusion molding, for example by pressing material against an external extrusion die, and / or subsequently.
  • the pin can be formed of solid material. In this case, it is provided with the hollow central area by a suitable ram or pressing fluid. This can be done by means of a pressed stamp or by pumping in fluid. Alternatively, it is also possible to start from a hollow element, i. to subject a pipe section of suitable length to extrusion molding. In the extrusion molding and / or in a different step, the contact-side end can be reshaped to give a standard rounding. Such can be closed without problems to the extent that penetration of foreign bodies is prevented, so that there is no danger that a user by touching a trapped at the top and introduced with this into the socket to a phase conductor, e.g. moisture or an intrinsically conductive object such as a thin strand of copper.
  • a phase conductor e.g. moisture or an intrinsically conductive object such as a thin strand of copper.
  • the plug pin is not or not completely hollow shaped at its socket insertion end, but there remains solid material.
  • This can offer advantages when a plug bridge formed with the plug pin has to undergo pull-out tests to test how the plug behaves when it is repeatedly pulled out of a socket under full load. In such tests, arcing during the extraction phase can cause damage to the connector pin. By leaving a thickened end portion to the socket, the resistance under such conditions is then significantly increased.
  • the end region is to be selected at least in such a way that the regions to be contacted in a socket or socket are fully contacted.
  • the dimensioning of the hollow region can be selected so that the weight of the center region considered in isolation is a maximum of 70%, preferably less than, in particular preferred, a maximum of 40% of a full part of the same dimensions in the outer dimensions.
  • the advantages obtained with the connector pin of the present invention in particular the saving of expensive metal material, become smaller.
  • the stability of the plug pin is impaired.
  • weight reductions of the central region which are greater than those specified here as preferred are also possible. In principle, the weight reduction should be as great as possible, but the required stability tests such as fall drum tests and the like still have to be passed. In this respect, the above statements are areas where a problem-free implementation can be assumed without the invention is to be regarded as limited thereto.
  • the pin is preferably made of brass or stainless steel. It will be appreciated that the materials used can be chosen to withstand extrusion molding of the required extent without cracking or other damage.
  • the invention with brass as a starting material is well usable, especially if its copper content is sufficiently high. Practical experiments with a Cu content of 85% have been very satisfactory and it can be estimated that brass species with a lower Cu content can also be used, for example brass grades with only about 70% by weight Cu. It is not necessary to add lead (Pb), so that lead-free connector pins are obtained. Moreover, the stated copper percentages are not limited by the above information limiting down, but only preferred. Optionally, a raw material heat pretreated for extrusion purposes in a suitable known manner is used. This also applies to non-brass starting materials.
  • Protection is also claimed for a connector bridge having at least one pin according to the present invention, a power cord with such a connector bridge, and an electrical device having such a power cord. Furthermore, protection is claimed for a method for producing an arrangement according to the invention.
  • FIG. 1a shows a connector pin according to the invention in the state cast into a plug bridge base plate in longitudinal section
  • Fig. Ib cross sections in different heights through the pin connector;
  • Fig. 2 shows an inventive pin with less far vorgetriebenem cavity.
  • a connector pin 1 generally designated 1
  • a connection end 2 for connection to a power cord, not shown, and having an extrusion-molded middle portion 4 leading from the connection end 2 to a socket-side contact end 3, with the center portion 4 as through cavity 4a shown, is hollow and the connecting end 2 is formed as a crimp end 2a.
  • the plug pin 1 is determined in the present example for a double safety plug and is poured in use in a direction indicated at 5 plug bridge base plate 5 made of plastic material. It is made of a suitable electrically conductive material, here the preferably usable brass. The usability with other metals, especially stainless steel, is explicitly mentioned and disclosed.
  • a funnel-shaped extension is provided at 2b, which is intended to facilitate the insertion of the power cord as from the direction indicated by arrow S, without protruding strands can affect the safety of the finished power plug.
  • the extension funnel 2b belonging to the plug bridge base plate 5 plastic insertion funnel may be prefixed and / or the exclusive use of plastic funnels without extension of the connecting end is possible.
  • various arrangements for the formation of superior funnels and their training to the connector pin towards are known and that such prior art arrangements can be used with the connector pin of the present invention.
  • Width in the funnel region 2b is significantly greater than the clear width in the cavity 4a of the central region 4, see Figure Ib below.
  • a crimping area 2 a is formed, which extends as far as between the surface of the mains lead strand stop side 5 a of the plug bridge main body 5 and the funnel-shaped opening at 2 b, so that an inserted strand can be crimped without danger of destruction or damage to the main body 5. This is indicated by the double arrow 2d. The appropriate dimensioning of this area is used for the
  • the area in which the crimping tools engage in the manufacture of the power plug will not extend all the way to the plug bridge base plate 5a, and that also, not necessarily, the feed hopper will be deformed.
  • a preferred inside width can be seen, for example, in FIG. 1 b in the second illustration from above. It can also be seen that enough wall material is left by extrusion molding to safely accomplish the crimping without tearing the connector pin or the like.
  • the wall thickness is chosen so that a denser, in particular gas-tight, but at least PVC fluid-tight seal can be obtained towards the strand.
  • the contact end 3 is completely closed in the present example, which is already here due to the manufacture of the illustrated plug pin made of solid material, i. Round wire happens.
  • cut to length pipe sections other ways to close the contact end sufficiently feasible.
  • the front, so plug-side contact end is not completely hollowed out, but has at the front end an area in which solid material is left.
  • This area of solid material is dimensioned such that, in the case of pull-out tests under full load, destruction of the tip by spark erosion or other disadvantageous effects of arcing is not destroyed.
  • the thickness of the non-hollow formed tip portion may vary depending on the geometry of the socket-pin-pair pairings prescribed in a particular country.
  • a sufficiently large thickness of the front end as shown in Fig. Ia not only helps to provide so much material that even after considerable spark erosion, etc., the integrity of the plug pin is still maintained; rather, a sufficiently massive tip also contributes to a better dissipation of the thermal energy introduced into the material during arcing.
  • the central region 4 is initially formed hollow and in particular in the area between the contact end 3 and in the use of the power plug to the outlet side toward.
  • This is shown in Figure Ib by the cross section at the bottom. It can be seen that a majority of the illustrated cross-sectional area is hollow. It is therefore immediately obvious that this saves considerable weight and material compared to a solid material.
  • the wall thickness is chosen such that, on the one hand, the intended current easily meets the required minimum cross-section even in the area of the thin wall and, on the other hand, both the plug pin and the plug pin cast in a plug bridge can survive falling drum tests and the like without problems.
  • the annular wall in the region of the hollow central region is still somewhat thinner than in the crimping region, but this is not mandatory.
  • the plug pin is thickened, as in FIG. 1b, third cross section from above, and can be seen in FIG.
  • the thickening causes shoulders 4 c, which may be slightly sloping, so do not have to protrude perpendicularly from the remaining Steckerstattwandung, but this can, are formed, which fix the pin against pulling in the connector bridge body 5. That the thickening is not mandatory, is mentioned by the way.
  • an outer shape is selected which is not circular, but has a shape deviating from a round shape and, moreover, may be toothed or serrated or has a profiling provided along the surface circumference, which may be provided at least partially, for example in a partial region 4d.
  • the arrangement is formed and processed as follows.
  • a piece of solid material is cut to length and an extrusion mold is provided in which the cut piece is formed into the desired shape by a single extrusion forming step. Then, an extrusion die is introduced into the extrusion matrix loaded with the cut-to-size blank to form the pin.
  • an extrusion die is introduced into the extrusion matrix loaded with the cut-to-size blank to form the pin.
  • the plug pin is readily processed further.
  • it can be cast in per se conventional manner in a connector bridge body and then the formed connector bridge are provided with a power cord. After hitting the mains connection wire, the plug body can then be formed by encapsulation with PVC material. There is no risk that PVC material penetrates into the cavity, since the hollow central area is sufficiently secured by the crimping against the ingress of material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

L'invention concerne une fiche de raccordement dotée d'une extrémité de liaison destinée à assurer la liaison avec un câble de raccordement au réseau et une partie centrale formée par façonnage par compression à l'état fondu et s'étendant de l'extrémité de raccordement à une extrémité de contact située du côté contact de la prise de raccordement. L'invention prévoit que l'extrémité de liaison soit formée comme extrémité sertie et la partie centrale comme partie creuse.
EP08801133.3A 2007-08-13 2008-08-12 Fiche de raccordement formee par un procede de compression a l'etat fondu Revoked EP2179479B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200710038219 DE102007038219B3 (de) 2007-08-13 2007-08-13 im Fließpressverfahren geformter Steckerstift
DE200710062500 DE102007062500A1 (de) 2007-12-20 2007-12-20 Im Fließpressverfahren geformter Steckerstift
PCT/DE2008/001300 WO2009021491A2 (fr) 2007-08-13 2008-08-12 Fiche de raccordement formée par un procédé de compression à l'état fondu

Publications (2)

Publication Number Publication Date
EP2179479A2 true EP2179479A2 (fr) 2010-04-28
EP2179479B1 EP2179479B1 (fr) 2013-12-11

Family

ID=40244976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08801133.3A Revoked EP2179479B1 (fr) 2007-08-13 2008-08-12 Fiche de raccordement formee par un procede de compression a l'etat fondu

Country Status (6)

Country Link
EP (1) EP2179479B1 (fr)
CN (2) CN103178372A (fr)
CZ (1) CZ21837U1 (fr)
DE (2) DE112008002761A5 (fr)
ES (1) ES2448425T3 (fr)
WO (1) WO2009021491A2 (fr)

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Publication number Priority date Publication date Assignee Title
DE202007017752U1 (de) * 2007-08-23 2009-01-02 Kazmierczak, Udo Steckerbrücke mit Steckerhohlstift
DE102009041919A1 (de) * 2009-09-17 2011-03-31 Tyco Electronics Amp Gmbh Elektrisches Kontaktelement für Hochstromsteckverbinder und Herstellungsverfahren
DE102010025728A1 (de) 2010-07-01 2012-01-05 Thomas Waible Steckerkontaktstift und Stecker mit zumindest einem Steckerkontaktstift
KR200453891Y1 (ko) 2010-09-30 2011-06-02 이완규 220ｖ 전원플러그용 핀단자 구조
DE102012002350A1 (de) 2011-07-20 2013-01-24 Bals Elektrotechnik Gmbh & Co. Kg Kontaktelement für eine elektrische Steckverbindervorrichtung
DE202013101939U1 (de) 2013-05-03 2013-05-15 Taller Gmbh Teil-massiver Hohlstift
DE102013208171B4 (de) * 2013-05-03 2022-09-08 Taller Gmbh Teil-massiver Hohlstift
DE102013016814A1 (de) * 2013-10-10 2015-04-16 Yamaichi Electronics Deutschland Gmbh Elektrisches Kontaktelement, Steckverbinder und Herstellungsverfahren
CN106532311B (zh) * 2016-12-22 2018-09-25 虞东升 圆柱形插脚及其插头
BE1026016B1 (de) 2018-02-14 2019-09-16 Phoenix Contact Gmbh & Co Verfahren zum Herstellen eines Kontaktsteckers und Kontaktstecker
CN109742573A (zh) * 2018-12-12 2019-05-10 中山市木林森光电有限公司 一种空心导电柱、应用该导电柱的电源及导电柱生产工艺
CN111740257A (zh) * 2020-06-28 2020-10-02 慈溪市寅升电器有限公司 空心圆柱形电源插脚、插头内架及电源插头

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See references of WO2009021491A3 *

Also Published As

Publication number Publication date
WO2009021491A2 (fr) 2009-02-19
CZ21837U1 (cs) 2011-02-28
CN101816106A (zh) 2010-08-25
DE112008002761A5 (de) 2010-07-15
CN101816106B (zh) 2013-01-30
DE202008014774U1 (de) 2009-03-05
EP2179479B1 (fr) 2013-12-11
CN103178372A (zh) 2013-06-26
ES2448425T3 (es) 2014-03-13
WO2009021491A3 (fr) 2009-04-02

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