EP1658662A1 - Procede de sertissage de contact electrique et contact obtenu par ce procede - Google Patents
Procede de sertissage de contact electrique et contact obtenu par ce procedeInfo
- Publication number
- EP1658662A1 EP1658662A1 EP04720635A EP04720635A EP1658662A1 EP 1658662 A1 EP1658662 A1 EP 1658662A1 EP 04720635 A EP04720635 A EP 04720635A EP 04720635 A EP04720635 A EP 04720635A EP 1658662 A1 EP1658662 A1 EP 1658662A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crimping
- fins
- wire
- barrel
- section
- 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
Links
- 238000002788 crimping Methods 0.000 title claims abstract description 125
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000035882 stress Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
-
- 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
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
- H01R43/0488—Crimping apparatus or processes with crimp height adjusting means
-
- 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
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
Definitions
- the present invention relates to a method of crimping an electrical contact and the contact obtained by this method. It is known to make electrical contact between an electrical wire, in particular multi-strand, and a metallic contact element by a crimping operation for which the fins cut out from the metallic contact element are folded around the exposed electrical wire by a crimping tool. type anvil punch. This technique is applied for contacts made from a folded cut metal blank.
- Document US 5,561,267 relates for example to a crimp contact comprising fins of different size allowing an overlap of a crimping fin on another and a crimping process with punch-anvil adapted.
- the crimped contacts encounter reliability problems for low current and low voltage applications and more particularly micro-breaks appear over time.
- the present invention relates to a method of crimping an electrical contact on an electrical wire, the contact comprising a crimping section provided with a barrel for receiving the electrical wire, the barrel comprising a part intended to grip the wire by deformation, the method comprising a first crimping step at a first crimping height by folding a first surface of the crimping section onto the wire by a crimping tool comprising a punch and an anvil and a second crimping step at a second crimping height , lower than the first, of a localized region of the crimping section.
- the first crimping step folds up a first surface of the fins at said first height on the wire and the second crimping step folds a localized area of the fins at said second height, less than the first.
- the second crimping can be carried out on two zones separated from the fins. More particularly, the second crimping can in particular be carried out on end zones of the fins. In an alternative embodiment, the second crimping can be carried out on a central zone of the fins.
- the first crimping step can be carried out on all of the fins so as to close the fins on the wire.
- the second crimping step is carried out on a part of the surface of the fins having undergone the first crimping step.
- the method may in particular be such that the crimping tool comprises a common anvil and separable punch elements.
- the barrel can in particular be deformed during the first crimping step and keep its shape during the second crimping step.
- the invention further relates to an electrical contact element comprising a crimping section provided with an open barrel provided with crimping fins on an electric wire, the crimping section being crimped on the wire by the method described above such that, after crimping, the crimping section comprises three successive zones of crushing of the fins on the wire, two of the three zones being of reduced thickness compared to the third zone so that the wire exerts an elastic stress on the fins at the third zone.
- one of the three zones is of reduced thickness compared to the other two zones so that the wire exerts an elastic stress on the fins at the level of the two other zones.
- FIG. 1 A tool crimping according to one aspect of the invention
- Figure 2 An electrical contact element and a wire to be crimped according to the method of the invention
- FIGS. 3a and 3b a contact crimped using the method according to the invention
- Figure 4 A schematic sectional view of a crimping of electric wire obtained by a method according to the invention
- FIGS. 5a and 5b two versions of the second crimping step of the method according to the invention
- Figure 6 A schematic representation of the first crimping step of the method according to the invention.
- the crimping is carried out on electrical contacts with open barrel.
- Such contacts comprise a front part A, in particular for connection to a complementary contact traditionally known, and comprise, in an intermediate part, for connection by crimping, a crimping section 30 provided with an open barrel 3 provided with fins 4, 5 for crimping on a stripped part 12 of an electric wire 2, the crimping section being intended to be crimped on the wire to make an electrical contact between the wire 2 and the contact element 1.
- the contact 1 has an end section 31 forming a force recovery zone provided with wings 10, 11 intended to close on the insulator 13 of the wire 2.
- the front part A of the contact element may be of any type and may even possibly consist of a second connection section by crimping, for example to make a splice.
- Such contact elements are produced by cutting and folding a metal strip of small thickness of the order of 0.2 mm to a few millimeters in thickness. Due to the need for these contacts to have good rigidity and, in the case of contacts with spring contact blades, good elasticity, the material used is very little ductile and is subject to elastic return during bending operations or forming. It has been shown that this elastic return exists at the level of the crimping fins 4, 5 and that even if the variations in dimensions are only of the order of a few microns, this elastic return can cause intermittent losses of contact between the strands.
- the wire generally based on copper, has a low elastic return capacity and in particular less than that of alloys such as a cuproberyllium often used for the contact elements.
- the invention tends to modify the mechanical behavior of crimping in order to use the physical phenomenon of elastic return in a favorable direction over a particular area of the contact.
- the crimping method of a crimping section of an electrical contact element 1 on an electrical wire 2 comprises a first step of crimping the crimping section 30 on the stripped part 12 of the wire at a first height h1 by folding the fins 4, 5 onto the wire 2 by a crimping tool comprising a punch 6 and an anvil 7.
- a crimping tool comprising a punch 6 and an anvil 7.
- the punch 6 formed according to the 'example of three parts 6a, 6b, 6c, presses with its three parts on all of the fins 4 and 5 and the anvil presses under the barrel 3, the fins 4 and 5 being continuous fins.
- the crimping height h1 is obtained as a function of the dimensions of the contact and of the wire by conventional crimping so that a minimum compression ratio of the order of 5% is obtained so as to close the fins on the wire.
- This first crimping step is carried out on a major part of the surface of the fins 4, 5 see on all of these fins by the punch 6 and on a major part see all of the barrel 3 by the anvil 7.
- the method comprises a second step or crimping operation, this operation is carried out at a second height h2, lower than the first on a localized area of the fins. This step is carried out so that a compression ratio greater than 15% and typically of the order of 25 to 30% is obtained under the crimping tool.
- FIGS. 4 and 5b representing a first embodiment for which only the elements 6a, 6c of the punch 6 press on the ends 4a, 4c, 5a, 5c of the fins, the element 6b remaining in withdrawal and not coming into contact with the fins and, in FIG. 5a for a second embodiment for which only the punch element 6b presses on the fin parts 4b and 5b, the punch elements 6a and 6c remaining set back and not coming into contact with the fins.
- the second crimping step is carried out on a part of the surface of the fins having undergone the first crimping step.
- the crimped contact comprises three successive zones of crushing of the fins on the wire, two of the three zones being of reduced thickness compared to the third zone so that the wire exerts an elastic stress on the fins at the level of the third zone.
- the crimped contact comprises three successive zones of crushing of the fins on the wire, one of the three zones being of reduced thickness compared to the other two zones so that the wire exerts a stress. elastic on the fins at the two other zones.
- the double crimping reverses the elastic return to make it play a positive role, that is to say creating contact pressure between the barrel and the strands.
- the strands locally swell in the area 20b between the two tools 6a and 6c performing the second step of crimping. Consequently, while for the zones of the fins under the tools 6a and 6c, the elastic return of the fins remains greater than that of the strands of the wire, in zone 20b, it is the wire which comes to deform the wing by effect of swelling. The elasticity of the fins then has in this part 20b a positive effect because it tends to compress the wire which implies a mechanical contact pressure and therefore good electrical conduction even under mechanical or thermal stresses.
- the crimping tool shown in FIG. 1 and adapted to the method according to the invention comprises a common anvil 7 and elements 6a, 6b, 6c of separable punch.
- Such a tool can operate on a traditional automatic press by means of a separate control of the punch elements. It is of course possible to carry out the crimping operations on two separate stations, a first station comprising a first punch performing the first crimping and a second station comprising a punch suitable for performing the second crimping on a particular area of the contact.
- a first station comprising a first punch performing the first crimping
- a second station comprising a punch suitable for performing the second crimping on a particular area of the contact.
- the fact remains that the embodiment for which the punch 6 is divided into elements of movable punches which can be actuated separately makes it possible to maintain perfect alignment of the contact element with the punches and to carry out the two operations successively on the same press.
- the advantage of the common anvil is that the barrel 3 is deformed during the first crimping step and retains its shape during the second crimping step.
- the barrel thus retains good mechanical rigidity and good resistance to mechanical stress in the event of traction on the wire.
- Such a method is applicable to crimp contacts with open barrel for folded cut electrical contacts but also to closed barrel contacts such as cut cut contacts rolled on the basis of a metal strip.
- the first crimping step can be carried out by means of the single element 6b of the punch (for a final second stage result of the type shown in Figure 3a) or by using only elements 6a and 6c of this punch (for a final second stage result of the type shown in Figure 3b), this means that the elements 6a and 6c, respectively the element 6b, remains (s) during this first step in a high position without themselves coming to press force on the fins 4 and 5 of the barrel placed on the anvil.
- the fins 4 and 5 will nevertheless undergo a more or less marked folding / crimping operation over all or a very significant part of their length beyond the sole area (s) of the fin (s) on the / Which (s) element 6b, respectively, the elements 6a / 6c of the punch have come to bear.
- the first crimping height defines the crimping height on the central zone of the fins respectively the crimping height on the end zones of the fins.
- the second crimping step which follows the first step is then carried out by means of elements 6a, 6c, respectively of element 6b, according to the invention, element 6b of the punch, respectively elements 6a and 6c of this punch remaining in an end position of the first stage to keep the barrel in the shape it has at the end of the first stage.
- the first crimping step crimps at least a first zone of each fin 4 and 5 of the barrel at a first crimping height, by more or less markedly folding the fins on a surface extending beyond said at least a first zone
- the second crimping step crimps at the second crimping height at least a second zone of each fin 4 and 5, called localized region of the crimping section, complementary (s) of said at least a first zoned.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Manufacture Of Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0310011A FR2859047A1 (fr) | 2003-08-19 | 2003-08-19 | Procede de sertissage de contact electrique et contact obtenu par ce procede |
PCT/FR2004/000631 WO2005029653A1 (fr) | 2003-08-19 | 2004-03-15 | Procede de sertissage de contact electrique et contact obtenu par ce procede |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1658662A1 true EP1658662A1 (fr) | 2006-05-24 |
EP1658662B1 EP1658662B1 (fr) | 2016-07-27 |
Family
ID=34112811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04720635.4A Expired - Lifetime EP1658662B1 (fr) | 2003-08-19 | 2004-03-15 | Procede de sertissage de contact electrique et contact obtenu par ce procede |
Country Status (10)
Country | Link |
---|---|
US (1) | US20070054565A1 (fr) |
EP (1) | EP1658662B1 (fr) |
JP (1) | JP4413926B2 (fr) |
KR (2) | KR20060065696A (fr) |
CN (1) | CN100452566C (fr) |
BR (1) | BRPI0412982A (fr) |
CA (1) | CA2534403C (fr) |
FR (1) | FR2859047A1 (fr) |
MX (1) | MXPA06001829A (fr) |
WO (1) | WO2005029653A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3439111A1 (fr) * | 2017-08-01 | 2019-02-06 | VM Industries | Sertissage optimisé de deux connecteurs électriques |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102037622B (zh) * | 2008-03-20 | 2015-04-08 | 富加宜汽车控股公司 | 电端子压接方法及获得的组件 |
JP2010097781A (ja) * | 2008-10-15 | 2010-04-30 | Autonetworks Technologies Ltd | 端子金具付き電線の製造方法及び端子圧着装置 |
DE102008044064B4 (de) | 2008-11-25 | 2016-03-24 | Volkswagen Ag | Crimpvorrichtung sowie ein Verfahren zur Herstellung einer Crimpverbindung |
JP5164819B2 (ja) * | 2008-12-12 | 2013-03-21 | 矢崎総業株式会社 | 圧着バレルの圧着方法、圧着バレル及び圧着装置 |
KR200456773Y1 (ko) * | 2009-10-22 | 2011-11-21 | 주식회사 유라코퍼레이션 | 터미널 케이블 장치 |
JP5953590B2 (ja) * | 2012-03-21 | 2016-07-20 | 矢崎総業株式会社 | 圧着端子付き電線、および圧着端子を電線に圧着する方法 |
CN103458542A (zh) * | 2012-12-18 | 2013-12-18 | 上海华族实业有限公司 | 设有波纹状散热翅片的陶瓷ptc加热器 |
JP2015076238A (ja) * | 2013-10-08 | 2015-04-20 | 矢崎総業株式会社 | 圧着端子及び圧着端子の加締治具 |
JP5714749B2 (ja) * | 2014-05-15 | 2015-05-07 | 矢崎総業株式会社 | 端子圧着方法及び端子圧着装置 |
FR3033450B1 (fr) * | 2015-03-06 | 2017-02-17 | Delphi Int Operations Luxembourg Sarl | Procede de sertissage d'un contact electrique sur un cable et outil pour la mise en oeuvre de ce procede |
US9634419B2 (en) * | 2015-05-17 | 2017-04-25 | Manzhi Zhou | Cold forming method for forming power pins and power pin formed thereof |
FR3054379B1 (fr) * | 2016-07-19 | 2020-11-20 | Delphi Int Operations Luxembourg Sarl | Outil de sertissage et contact obtenu avec l'outil |
JP2018073584A (ja) * | 2016-10-27 | 2018-05-10 | 矢崎総業株式会社 | 端子圧着構造および端子圧着用金型 |
JP6720929B2 (ja) * | 2017-06-29 | 2020-07-08 | 住友電装株式会社 | 導電路及びワイヤハーネス |
DE102020105135A1 (de) | 2020-02-27 | 2021-09-02 | Komax SLE GmbH & Co. KG | Vorrichtung zum Crimpen von Kabeln |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2468169A (en) * | 1942-09-25 | 1949-04-26 | Aircraft Marine Prod Inc | Method of making electrical connectors |
US2639754A (en) * | 1945-03-03 | 1953-05-26 | Aircraft Marine Prod Inc | Tool for crimping ferrules |
US3051773A (en) * | 1959-09-23 | 1962-08-28 | Hugh W Batcheller | Wire gripping elements and method of making and crimping same |
CA1112321A (fr) * | 1978-05-30 | 1981-11-10 | Richard W. Normann | Contact electrique, et methode de faconnage connexe |
EP0085801A1 (fr) * | 1982-02-10 | 1983-08-17 | Teledyne Penn-Union | Outil à compression |
DE3921990A1 (de) * | 1988-07-08 | 1990-01-11 | Yazaki Corp | Quetschanschlussverbinder fuer leiter und verfahren zur herstellung eines quetschverbinderanschlusses |
US5532433A (en) * | 1991-11-13 | 1996-07-02 | Yazaki Corporation | Waterproof-type terminal connection structure and method of producing same |
US5414926A (en) * | 1992-10-09 | 1995-05-16 | Sumitomo Wiring Systems, Ltd. | Terminal crimping apparatus |
US5561267A (en) * | 1993-11-30 | 1996-10-01 | Sumitomo Wiring Systems, Ltd. | Crimp terminal and process for producing the same |
CH693550A5 (de) * | 1997-06-30 | 2003-09-30 | Komax Holding Ag | Krimpvorrichtung und Verfahren zu deren Betrieb. |
JP3534298B2 (ja) * | 1998-02-03 | 2004-06-07 | 矢崎総業株式会社 | 端子を形成するための金型 |
US6410853B1 (en) * | 2001-01-04 | 2002-06-25 | Emerson Electric Co. | Electrical connection and method of attaching an electric conductor to an electrically conductive terminal via a telescoping sleeve |
-
2003
- 2003-08-19 FR FR0310011A patent/FR2859047A1/fr active Pending
-
2004
- 2004-03-15 JP JP2006523645A patent/JP4413926B2/ja not_active Expired - Fee Related
- 2004-03-15 CA CA2534403A patent/CA2534403C/fr not_active Expired - Fee Related
- 2004-03-15 CN CNB2004800234795A patent/CN100452566C/zh not_active Expired - Fee Related
- 2004-03-15 EP EP04720635.4A patent/EP1658662B1/fr not_active Expired - Lifetime
- 2004-03-15 US US10/566,661 patent/US20070054565A1/en not_active Abandoned
- 2004-03-15 KR KR1020067003250A patent/KR20060065696A/ko not_active Application Discontinuation
- 2004-03-15 BR BRPI0412982-2A patent/BRPI0412982A/pt not_active IP Right Cessation
- 2004-03-15 KR KR1020117009918A patent/KR101273881B1/ko active IP Right Grant
- 2004-03-15 WO PCT/FR2004/000631 patent/WO2005029653A1/fr active Application Filing
- 2004-03-15 MX MXPA06001829A patent/MXPA06001829A/es active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2005029653A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3439111A1 (fr) * | 2017-08-01 | 2019-02-06 | VM Industries | Sertissage optimisé de deux connecteurs électriques |
FR3069965A1 (fr) * | 2017-08-01 | 2019-02-08 | VM Industries | Sertissage optimise de deux connecteurs electriques |
Also Published As
Publication number | Publication date |
---|---|
KR20110063582A (ko) | 2011-06-10 |
EP1658662B1 (fr) | 2016-07-27 |
JP2007503083A (ja) | 2007-02-15 |
JP4413926B2 (ja) | 2010-02-10 |
FR2859047A1 (fr) | 2005-02-25 |
CN1836354A (zh) | 2006-09-20 |
WO2005029653A1 (fr) | 2005-03-31 |
CA2534403C (fr) | 2013-05-07 |
CN100452566C (zh) | 2009-01-14 |
MXPA06001829A (es) | 2006-05-31 |
BRPI0412982A (pt) | 2006-10-03 |
CA2534403A1 (fr) | 2005-03-31 |
KR20060065696A (ko) | 2006-06-14 |
US20070054565A1 (en) | 2007-03-08 |
KR101273881B1 (ko) | 2013-06-17 |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ZINDINE, EL MOSTAFA Inventor name: COURTIN, THIERRY Inventor name: FANTINI, FLAVIO |
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Owner name: FCI AUTOMOTIVE HOLDING |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
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