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EP2178174A1 - Structure améliorée de terminaux de prise à gradins et son procédé de production - Google Patents

Structure améliorée de terminaux de prise à gradins et son procédé de production Download PDF

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Publication number
EP2178174A1
EP2178174A1 EP09250606A EP09250606A EP2178174A1 EP 2178174 A1 EP2178174 A1 EP 2178174A1 EP 09250606 A EP09250606 A EP 09250606A EP 09250606 A EP09250606 A EP 09250606A EP 2178174 A1 EP2178174 A1 EP 2178174A1
Authority
EP
European Patent Office
Prior art keywords
terminal body
cavity
connector
stepped
linkage part
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.)
Withdrawn
Application number
EP09250606A
Other languages
German (de)
English (en)
Inventor
Peng-Cheng Tiao
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2178174A1 publication Critical patent/EP2178174A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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
    • 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
    • H01R2103/00—Two poles

Definitions

  • the present invention relates generally to the technical field of electrical plugs, and more particularly to the plug terminals used in electrical plugs and its production method.
  • Terminals for electrical plugs are roughly divided into four categories according to the countries where they are used: USA-Japan-Canada system, Europe Union System, Great Britain System and China System.
  • FIG. 1 and FIG. 2 there are electrical plugs 1 with two terminals and three terminals.
  • This kind of plug terminals is comprised of a terminal body 10, a linkage part 20, and a connector 30.
  • the terminal body 10 is comprised of a front section 11 and a neck 12.
  • the linkage part 20 is located between the neck 12 of the terminal body 10 and the connector 20.
  • plug terminals of this kind of structure are produced using such methods as turning and milling. During production, a considerable amount of raw materials are wasted. As the major raw material is copper, which is very costly, the production cost of such plug terminals has always been too high. When there is currently no way to acquire raw materials with lower cost, how to reduce the production cost of plug terminals is a problem to be improved.
  • stepped plug terminals are produced using such production methods as turning and milling, to facilitate machining, the material to make the terminals must be added with a percentage up to 1.8 ⁇ 3.7% of lead, which is heavy metal.
  • lead is a major source of pollution to underground water, and may jeopardize the central nervous system and blood circulation system of the human body. Hence, it is not environment-friendly.
  • the main objective of the present invention is to provide an improved structure of stepped plug terminals and its production method based on the shortcomings of prior art.
  • This type of plug terminals has the features of simplified production processes, faster processing speed, lower production cost, and environmentally friendliness.
  • the improved structure of stepped plug terminals disclosed in the present invention consists of a terminal body, a linkage part, and a connector, wherein, the terminal body is comprised of a front section and a neck, and the linkage part is located between the neck of the terminal body and the connector. Said terminal body, linkage part, and connector are formed integrally through extrusion.
  • Said terminal body, linkage part, and connector can be cylindrical, prismatic, or flat.
  • the plug terminals of the present invention are produced using the following technical method: firstly, a stepped terminal body is made out using a forming machine; then, the neck of the terminal body is fixed by a mould with stepped cavity; and then, extrude the part of the neck extending to the rear of the cavity, making it distorted to form into the linkage part at the rear end of the cavity, while the part out of the cavity constitutes the connector.
  • extrusions can be carried out for multiple times, with the sizes of the rear end of the mould cavity reducing one by one.
  • the difference between the size of the rear end of the mould cavity adopted in the last extrusion and the expected size of the linkage part is within an allowance.
  • the beneficial effect of the present invention is as follows: as the terminal body, linkage part, and connector are formed integrally through extrusion, the production process is simplified, processing speed is enhanced and no waste will be generated. Hence, the production cost of the plug terminals is considerably reduced.
  • no heavy metal of lead needs to be purposely added into the raw material, and the content of heavy metal of lead in the raw material can be as low as 0.5%. Hence, the environment-friendliness of the terminals is greatly improved.
  • FIG. 3 and FIG. 4 show two types of plug terminals. Plug terminals in other shapes are not represented one by one.
  • the plug terminal comprises a terminal body 10, a linkage part 20, and a connector 30, wherein, the terminal body 10 is comprised of a front section 11 and a neck 12, the linkage part 20 is located between the neck 12 of the terminal body 10 and the connector 30, and the terminal body 10, linkage part 20, and connector 30 are formed integrally through extrusion.
  • the structures and shapes of the stepped plug terminal are not limited to the ones shown in FIG. 5 and FIG. 6 . Manufacturers can make changes as necessary according to the actual market demand.
  • the production method of the present invention is as follows: firstly, make the stepped terminal body 10 using copper material and a forming machine, then, the neck 12 of the terminal body 10 is fixed by the upper bolster and lower bolster of a mould 40 with stepped cavity 41, and then, extrude the part of the neck 12 extending out of the rear end of the cavity 41, making it distorted to form into the linkage part 20 at the rear end of the cavity 41, while the part out of the cavity 41 constitutes the connector 30.
  • extrusions can be carried out in multiple times, with the sizes of the rear end of the cavity 41 of the mould 40 reducing one by one.
  • the difference between the size of the rear end of the cavity 41 of the mould 40 adopted in the last extrusion and the expected size of the linkage part 20 is within an allowance.
  • the width and height of the linkage part 20 is 6.3mm and 4mm respectively, the allowance is +0.0/-0.05mm, and extrusions are carried out in three times, then, during the first extrusion, the width and height of the rear end of the cavity 41 of the mould 40 is 6.1mm and 3.8mm respectively; during the second extrusion, the width and height of the cavity 41 of the mould 40 is 6.2mm and 3.9mm respectively; and during the last extrusion, the width and height of the cavity 41 of the mould 40 is 6.3+0/-0.05mm and 4.0+0.0/-0.05mm respectively. In this way, the product obtained at last is a finished product meeting the accuracy requirements.

Landscapes

  • Manufacturing Of Electrical Connectors (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP09250606A 2008-10-14 2009-03-03 Structure améliorée de terminaux de prise à gradins et son procédé de production Withdrawn EP2178174A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200810167590 CN101364677B (zh) 2008-10-14 2008-10-14 一种改良型阶梯状插头端子的生产方法

Publications (1)

Publication Number Publication Date
EP2178174A1 true EP2178174A1 (fr) 2010-04-21

Family

ID=40390917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09250606A Withdrawn EP2178174A1 (fr) 2008-10-14 2009-03-03 Structure améliorée de terminaux de prise à gradins et son procédé de production

Country Status (2)

Country Link
EP (1) EP2178174A1 (fr)
CN (1) CN101364677B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20100192A1 (it) * 2010-06-18 2011-12-19 Bonaiti S P A Procedimento, particolarmente per la produzione di terminali per resistenze elettriche, e terminale ottenuto
CN103715585A (zh) * 2013-12-23 2014-04-09 杭州安费诺嘉力讯连接技术有限公司 一种端子产品的加工工艺

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8021183B2 (en) * 2008-10-31 2011-09-20 Apple Inc. Cold headed electric plug arm
US8934261B2 (en) 2008-12-23 2015-01-13 Apple Inc. Compact device housing and assembly techniques therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB734796A (en) * 1951-12-27 1955-08-10 Alfred Kreidler A combined die-pressing and extrusion process and apparatus for the production of hollow bodies having protuberances on their outer face and one or more extensions at one end
US20020185027A1 (en) * 2001-06-08 2002-12-12 Udo Drager Process for manufacturing a sleeve
EP1331696A2 (fr) * 2002-01-28 2003-07-30 FRIWO Gerätebau GmbH Tige de connection électrique pour insertion à force et procédé de fabrication

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538625A1 (fr) * 1982-12-23 1984-06-29 Cemrep Fiche a broches pour prise de courant electrique
GB2186747B (en) * 1986-02-18 1989-11-01 On Tat Bakelite Electric Works Manufacturing method for insulated pins for electric plugs
DE3840140C2 (de) * 1988-11-29 1994-10-06 Taller Gmbh Steckerstift für elektrische Anschlußstecker
CN2101945U (zh) * 1991-08-17 1992-04-15 建通精密工业股份有限公司 电器插头之新结构

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB734796A (en) * 1951-12-27 1955-08-10 Alfred Kreidler A combined die-pressing and extrusion process and apparatus for the production of hollow bodies having protuberances on their outer face and one or more extensions at one end
US20020185027A1 (en) * 2001-06-08 2002-12-12 Udo Drager Process for manufacturing a sleeve
EP1331696A2 (fr) * 2002-01-28 2003-07-30 FRIWO Gerätebau GmbH Tige de connection électrique pour insertion à force et procédé de fabrication

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20100192A1 (it) * 2010-06-18 2011-12-19 Bonaiti S P A Procedimento, particolarmente per la produzione di terminali per resistenze elettriche, e terminale ottenuto
EP2398113A1 (fr) * 2010-06-18 2011-12-21 Bonaiti S.P.A. Procédé pour fabriquer des terminaux pour résistances électriques et terminal obtenu
US8410894B2 (en) 2010-06-18 2013-04-02 Bonaiti S.P.A. Method, particularly for manufacturing terminals for electric resistors, and the terminal obtained
CN103715585A (zh) * 2013-12-23 2014-04-09 杭州安费诺嘉力讯连接技术有限公司 一种端子产品的加工工艺

Also Published As

Publication number Publication date
CN101364677A (zh) 2009-02-11
CN101364677B (zh) 2013-10-02

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