EP1331696B1 - Procédé de fabrication d'une tige de connection électrique pour insertion à force - Google Patents

Procédé de fabrication d'une tige de connection électrique pour insertion à force Download PDF

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Publication number
EP1331696B1
EP1331696B1 EP03001620A EP03001620A EP1331696B1 EP 1331696 B1 EP1331696 B1 EP 1331696B1 EP 03001620 A EP03001620 A EP 03001620A EP 03001620 A EP03001620 A EP 03001620A EP 1331696 B1 EP1331696 B1 EP 1331696B1
Authority
EP
European Patent Office
Prior art keywords
electrically conductive
conductive core
contact
plug
electrical
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
EP03001620A
Other languages
German (de)
English (en)
Other versions
EP1331696A2 (fr
EP1331696A3 (fr
Inventor
Thomas Steiert
Michael Bothe
Kay Van Gen Hassend
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.)
Friwo Geraetebau GmbH
Original Assignee
Friwo Geraetebau 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
Priority claimed from DE2002103171 external-priority patent/DE10203171B4/de
Application filed by Friwo Geraetebau GmbH filed Critical Friwo Geraetebau GmbH
Publication of EP1331696A2 publication Critical patent/EP1331696A2/fr
Publication of EP1331696A3 publication Critical patent/EP1331696A3/fr
Application granted granted Critical
Publication of EP1331696B1 publication Critical patent/EP1331696B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R13/40—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
    • 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
    • H01R13/44—Means for preventing access to live contacts
    • 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
    • H01R13/6658—Structural association with built-in electrical component with built-in electronic circuit on printed circuit board
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable

Definitions

  • the present invention relates to a method for producing an electrical plug pin which can be inserted into a mains socket and which has an electrically conductive core with a contact region for electrically contacting the mains socket and a connection region for contacting an electrical component.
  • Such pins such as those from the DE 41 41 726 C1 are known, according to the prior art, metallic turned parts, which are used both in electrical power plugs as well as in power supply for contacting the power outlet.
  • plug-in power supplies such as power adapters to power electrical appliances with a low voltage or plug chargers.
  • plug-in power supply units consist of a housing which contains the electrical assembly, which is required for the power supply of a connectable via a cable electrical device, or which is required to charge plug-in batteries, and at least one arranged on the housing pin, which in the power outlet can be inserted and connected to a holding the electrical assembly circuit board.
  • Such a power supply for supplying electrical equipment with a low voltage is from the DE 43 22 087 C2 known.
  • FIG FIG. 6 Another example of such a contact spring 111 is shown in FIG. 6 shown.
  • the associated in the Figures 5 and 7 Conventional so-called Euro plugs 110 are usually manufactured as a turned part and have a contact region 112 for electrically contacting the power socket, an insulated region 116 in which the plug pin 110 is surrounded by an insulating sheath, and a connection region 114 which is connected to the contact spring 111 , on.
  • the insulated area 116 has a knurl 117 which serves to anchor securely in the insulating sheath.
  • a circumferential detent projection 128 in the connection region 114 cooperates with spring projections 126 on the contact spring 111 such that the connector pin 110 is mechanically secured in the contact spring 111.
  • British patent specification GB 937 579 A discloses a method for the production of wire-wrap pins, in which first a metal plate is patterned with corresponding projections by means of an extrusion method and this is subsequently cut by means of a sawing technique into individual connector pins with a rectangular cross-section.
  • the design of the pins according to this document with sharp edges is important so that the pin can be used as a wire-wrap pin, as on a rounded cross-section of the wire can not be fixed.
  • German Offenlegungsschrift DE 32 02 747 A1 discloses a power plug with plug pins, which are constructed as usual European plug pins and mounted in a base body, which allows easier installation of the plug.
  • French patent application FR 1 386 635 A discloses electrical connectors for wire-wrap connections made by sheet metal stamping and bending.
  • the British Patent Application GB 2 186 747 A discloses the production of plug pins with rectangular cross-section, which have a recess which is filled with an insulator.
  • the recess is made by a machining process.
  • German Offenlegungsschrift DE 38 40 140 A1 discloses a plug pin for electrical connector, which is provided with an annular groove and a surface roughening, here a knurling.
  • British patent specification GB 818,006 discloses a method for producing extruded wire connector pins by means of a cold forging method. A subsequent post-processing step is used to remove the burrs generated during forging.
  • the present invention is therefore an object of the invention to provide an improved manufacturing method of a male pin, whereby the production of such connector pins and thus also the power plug and plug power supplies containing it is simplified and cheapened.
  • the invention is based on the finding that a substantially simplified production process can be achieved by replacing the rotation as a production method for such connector pins.
  • the fact that it is a non-cutting production process no waste, but the raw material can be used to 100%.
  • Extrusion is a faster process than turning because, depending on the size and intensity, up to 1000 parts per minute are possible, and it can Thus, the production can be significantly accelerated.
  • the pin is made in a non-forming technique, the material is compacted and the pin has improved tensile strength over similarly shaped turned parts.
  • the production by the extrusion process has the advantage that the production tools are worn much less heavily during production than when turning.
  • the electrically conductive core has an insulated region between the contact region and the connection region, in which region it is surrounded by an electrically insulating sheath, preferably a plastic sheath.
  • the electrical core can be secured against twisting in the electrically insulating sheath in a particularly simple and inexpensive manner (so-called anti-rotation protection).
  • this knurl is integrated into the extrusion process.
  • a knurl of the knurl which can be produced particularly well by the extrusion process is a knurl with axially parallel grooves according to DIN 82 RAA.
  • the terminal portion has a circumferential latching projection over which the connector pin can be latched with a contact spring of the electrical component comprises.
  • this locking projection can be attached by transverse rollers to the electrically conductive core.
  • the advantageous properties of the plug pin according to the invention can be used particularly effectively in an electrical power plug, in which the electrical component is correspondingly an electrical connection cable.
  • a power plug can be designed, for example, to the European standard, but can also correspond to any other country standard.
  • the advantageous properties of the electrical connector pin according to the invention can also be effective in a plug-in power supply, in which the electrical component is a printed circuit board with an electrical assembly use.
  • connection region is made so that it can be directly connected to a direct contacting of the printed circuit board, then additional parts, such as the conventional contact spring, can be dispensed with. This simplifies the manufacturing process and saves material. The fact that the contact spring is eliminated, also increases the safety of the electrical connection, for example, in harsh environmental conditions with respect to temperature or mechanical stress.
  • connection region of the plug pin is designed U-shaped and the printed circuit board is embraced in the inserted state so that it is electrically contacted.
  • the contact region and a cylindrical shaft of the electrically conductive core connected thereto are produced by means of an extrusion process.
  • extrusion molding a blank or billet in a die is reshaped by a die which exerts the high pressure necessary for the flow and forms the caliber together with the die walls.
  • This method has the advantage that the raw material is used to 100% and no waste is generated, that the process is much faster than the conventional turning, because depending on the forming intensity up to 1000 parts per minute can be produced, and that the pull-out protection and the anti-rotation can be integrated into the extrusion process, for example, by cross rolling and the attachment of a knurl.
  • a special case of extrusion is the so-called cold flow, in which the deformation is carried out at comparatively low temperatures.
  • FIG. 1 an electrically conductive core 109 of a connector pin 110 produced by extrusion molding is shown.
  • the electrically conductive core 109 has a contact region 112 and a connection area 114. About the contact portion 112 of the pin 110 is connected to a power outlet, not shown in the figure.
  • an insulated region 116 the electrically conductive core 109 is surrounded by an insulating sheath, preferably a plastic sheath, which is not shown in this drawing. This ensures increased mechanical stability and electrical safety.
  • the illustrated electrically conductive core 109 corresponds to the European standard, but can be designed according to any country standard.
  • the electrically conductive core 109 has a knurl 117 that can be produced during extrusion.
  • a circumferential latching projection 128 can be attached by means of correspondingly shaped transverse rolling rolls. This latching projection 128 can then interact with a contact spring 111 for contacting an electronic component such as a stranded wire or a printed circuit board.
  • the contact area 112 is bevelled at its end facing the socket to reduce the risk of injury during handling and to facilitate insertion into the mains socket.
  • FIG. 2 An alternative embodiment of an electrically conductive core 109 is shown in FIG FIG. 2 shown.
  • the terminal portion 114 is U-shaped, so that it forms a fork contact, in which, for example, a printed circuit board can be inserted directly.
  • FIG. 3 a mains plug 200 according to the European standard is shown, in which two plug pins 110 according to the invention are used to establish the electrical connection between a (not shown) power outlet and an electrical connection cable 202.
  • FIG. 4 is a section of a plug-in power supply 100 with plug pins 110 shown in a sectional view according to an advantageous embodiment.
  • a printed circuit board (PCB) 104 is arranged, which carries electronic components 106.
  • These components 106 provide the functions required for the particular embodiment of the plug-in power supply.
  • the electrical components 106 serve to generate low voltage for the power supply of a connectable via a connecting cable electrical device, if the plug-in power supply unit 100 is a plug-in power supply for the power supply of electrical appliances with a low voltage.
  • the electronic components 106 required for the charging of rechargeable batteries or batteries are arranged on the printed circuit board 104 when the plug-in power supply 100 is a plug-in charger.
  • the circuit board 104 on its top and / or bottom pads to 108, which are to be connected to the mains voltage.
  • two plug pins 110 are connected via contact springs 111 to the pads 108 according to the invention.
  • the plug pins 110 can be plugged into a mains socket, not shown in the figure, and can be connected to the mains voltage via their contact region 112.
  • the plug pins 110 are formed in the embodiment shown according to the European standard, but may be designed according to any country standard.
  • the printed circuit board 104 is inserted in the embodiment shown perpendicular to the longitudinal axis of the plug pin 110 and thus perpendicular to the insertion in the power socket in the contact spring 111.
  • the plug pin 110 is surrounded by an insulating sheath 124, preferably a plastic sheath. This ensures increased mechanical stability and electrical safety.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Claims (8)

  1. Procédé de fabrication d'une tige de connexion qui peut être introduite dans une prise secteur et qui présente un noyau (109) électriquement conducteur avec une zone de contact (112) pour la mise en contact électrique de la prise secteur et avec une zone de connexion (114) pour la mise en contact d'un composant électrique (104, 202), la tige de connexion étant constituée de telle sorte que la zone de contact (112) peut être introduite dans une prise secteur normalisée,
    caractérisé en ce que
    la zone de contact (112) du noyau (109) électriquement conducteur a une constitution cylindrique arrondie et est fabriquée en même temps que le noyau (109) électriquement conducteur dans un procédé d'extrusion.
  2. Procédé selon la revendication 1, caractérisé en ce que le procédé comprend également l'étape suivante : mise en place d'une molette sur le fût cylindrique pour la fixation mécanique du noyau (109) électriquement conducteur dans une enveloppe électriquement isolante.
  3. Procédé selon la revendication 2, caractérisé en ce que l'étape de la mise en place de la molette est intégrée dans le procédé d'extrusion.
  4. Procédé selon la revendication 2 ou 3, caractérisé en ce que la molette est une molette avec des cannelures parallèles à l'axe selon la norme DIN 82 RAA.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que le procédé comprend également l'étape suivante : laminage transversal du noyau (109) électriquement conducteur pour la mise en place d'une saillie crantée périphérique, par le biais de laquelle la tige de connexion peut être encliquetée avec un ressort de contact, dans la zone de connexion.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que, sur le noyau (109) électriquement conducteur, entre la zone de contact (112) et la zone de connexion (114), il est mis en place une zone isolée (116) avec laquelle il est isolé par une enveloppe (124) électriquement isolante, de préférence une enveloppe en matière plastique.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que la zone de connexion (114) est réalisée de sorte que, pour la mise en contact directe d'une plaquette de circuit imprimé (104), elle peut être raccordée directement à cette dernière.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que la tige de connexion (110) correspond, en ce qui concerne ses dimensions, ses intervalles et ses caractéristiques, à une norme européenne régissant les tiges de connexion secteur.
EP03001620A 2002-01-28 2003-01-24 Procédé de fabrication d'une tige de connection électrique pour insertion à force Expired - Lifetime EP1331696B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10203171 2002-01-28
DE10203173 2002-01-28
DE2002103171 DE10203171B4 (de) 2002-01-28 2002-01-28 Elektrischer Steckerstift mit elektrisch leitendem Kern in Fließpresstechnik und Verfahren zu seiner Herstellung
DE10203173 2002-01-28

Publications (3)

Publication Number Publication Date
EP1331696A2 EP1331696A2 (fr) 2003-07-30
EP1331696A3 EP1331696A3 (fr) 2004-10-13
EP1331696B1 true EP1331696B1 (fr) 2012-05-30

Family

ID=26010977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03001620A Expired - Lifetime EP1331696B1 (fr) 2002-01-28 2003-01-24 Procédé de fabrication d'une tige de connection électrique pour insertion à force

Country Status (2)

Country Link
EP (1) EP1331696B1 (fr)
ES (1) ES2384702T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1583181A1 (fr) * 2004-03-09 2005-10-05 AKE-ATALAY Kalip Elektrik Sanayi ve Ticaret Ltd. Perfectionnement concernant les broches terminales de fiche électrique
CN101291024B (zh) * 2007-04-17 2010-07-07 李世煌 一种插头端子及其制作方法
WO2008067726A1 (fr) * 2006-12-04 2008-06-12 Shihuang Li Borne de prise
CN101359786B (zh) * 2008-10-07 2013-10-02 濠玮精密科技（深圳）有限公司 一种改良式插头端子及其生产方法
CN101364677B (zh) * 2008-10-14 2013-10-02 濠玮精密科技（深圳）有限公司 一种改良型阶梯状插头端子的生产方法
IT1400606B1 (it) * 2010-06-18 2013-06-14 Bonaiti S P A Procedimento, particolarmente per la produzione di terminali per resistenze elettriche, e terminale ottenuto.
CN204190032U (zh) * 2014-10-10 2015-03-04 王安 一种插头的插脚安装结构
CN104607883B (zh) * 2015-02-13 2019-08-09 乐清市恒通电气有限公司 一种工业用插头的插芯制造工艺

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB818006A (en) * 1955-08-25 1959-08-12 Burndy Corp Improvements relating to electrical pin connectors

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB937579A (en) * 1961-08-18 1963-09-25 Oxley Robert Frederick Improvements in or relating to metal pins
FR1386635A (fr) * 1963-02-18 1965-01-22 Amp Inc élément de jonction électrique et son procédé de fabrication
DE3202747C3 (de) * 1982-01-28 1995-03-23 Krups Fa Robert Netzstecker
GB2186747B (en) * 1986-02-18 1989-11-01 On Tat Bakelite Electric Works Manufacturing method for insulated pins for electric plugs
DE8633492U1 (fr) * 1986-12-15 1987-02-19 Li, Huo-Li, Hsinchu, Tw
DE3840140C2 (de) * 1988-11-29 1994-10-06 Taller Gmbh Steckerstift für elektrische Anschlußstecker
FR2683953B1 (fr) * 1991-11-15 1995-06-09 Possehl Electronic France Sa Contact connecteur pour circuits hybrides utilises en micro-electronique assurant une liaison entre un substrat et un support.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB818006A (en) * 1955-08-25 1959-08-12 Burndy Corp Improvements relating to electrical pin connectors

Also Published As

Publication number Publication date
ES2384702T3 (es) 2012-07-11
EP1331696A2 (fr) 2003-07-30
EP1331696A3 (fr) 2004-10-13

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