EP0201512B1 - Select solder slot termination method and product - Google Patents

Select solder slot termination method and product Download PDF

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Publication number
EP0201512B1
EP0201512B1 EP85904574A EP85904574A EP0201512B1 EP 0201512 B1 EP0201512 B1 EP 0201512B1 EP 85904574 A EP85904574 A EP 85904574A EP 85904574 A EP85904574 A EP 85904574A EP 0201512 B1 EP0201512 B1 EP 0201512B1
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EP
European Patent Office
Prior art keywords
solder
terminal
slot
wire
conductor
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
Application number
EP85904574A
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German (de)
English (en)
French (fr)
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EP0201512A1 (en
Inventor
John Root Hopkins
Randy Marshall Manning
Stephen Anthony Marusak
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.)
TE Connectivity Corp
Original Assignee
AMP Inc
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Publication of EP0201512A1 publication Critical patent/EP0201512A1/en
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    • 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
    • H01R4/02—Soldered or welded connections
    • 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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/2462—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the contact members being in a slotted bent configuration, e.g. slotted bight
    • 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
    • H01R4/02—Soldered or welded connections
    • H01R4/023—Soldered or welded connections between cables or wires and terminals
    • H01R4/024—Soldered or welded connections between cables or wires and terminals comprising preapplied solder
    • 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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
    • H01R4/2425—Flat plates, e.g. multi-layered flat plates
    • 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
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding
    • 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
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • 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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives

Definitions

  • the present invention relates to a method and product for terminating electrical conductors and in particular to a method and product which combine insulation piercing and solder technology.
  • IDC insulation displacement connection
  • soldering and crimping with IDC now becoming more widely used because of productivity improvement implicit in the technique.
  • the advantages of solder include a potential for excellent reliability and low cost, when performed properly and employed in large volume production utilizing sophisticated soldering equipment where the solder process can be controlled rather exactly and the parts can be readily designed to fit the process.
  • hand soldering can be and is widely utilized. It is there that the five variables in soldering become most critical and sensitive to variability.
  • Totally neutral acids which may be preferred for the foregoing reasons, may not break through the surface oxides intrinsic to the metal surfaces of the parts or those oxides intrinsic to the metal surfaces of the parts or those oxides developed in time by the environment and duration of inventory.
  • Pores and fractures in a solder joint evidence an over application of heat caused by sudden out gassing.
  • Lumpy appearance and cold joints evidence too little heat. In pot or wave solder baths, surface dross can and does plague all operations.
  • crimping is usually performed by pressure application, in a tool, on a portion of a metal terminal to inelastically deform such about a bare electrical wire.
  • the terminal/tool system assures excellent terminal/wire joints repeatedly with little skill required.
  • Crimping typically takes a great deal of energy and even with small wires/ terminal crimps can demand 80-115 cm Kg (70 to 100 inch pounds) of work with die forces frequently exceeding 450-680 Kg (1000-1500 pounds). Larger sizes of terminal/wire indeed require forces of many thousands of pounds.
  • crimping usually calls for precision displacement of dies to effect the necessary deformation and tolerances between 0.0025 and 0.0076 cm (0.001 and 0.003 inches) are not uncommon.
  • high force and close tolerance characterizes most quality crimps.
  • high forces and close tolerances mean precision die surfaces and precision tool linkages which inescapeably mean cost.
  • high forces call for tooling dies that are quite strong and capable of bearing repeated forces and frictional engagements of the metal deformation of terminals. That fact dictates a certain size limitation, width and height, beef, if you will, limiting how close terminals may be fixed in connectors and still be crimped by practical dies. It limits how many wires can be crimped simultaneously without having to have a multi- ton force mechanism such as a press.
  • high force, precision and size of crimping dies all act as major recognized limitations on crimping as a termination technology.
  • IDC The concept of IDC involves stuffing an insulated wire into a slot in a metal portion of a terminal. It has evolved in two ways for separate reasons. An early use of IDC is shown in U.S. Patent No. 3,320,345 to J. E. Marley issued May 16, 1967. There, insulation displacement was employed to essentially effect stripping so as to handle very small solid wires where removal of insulation proved difficult and time consuming.
  • a second aspect of IDC relates to the situation where, by the use of insulation displacement, improved productivity could be obtained due to the fact that relatively large multiples of wires could be terminated simultaneously, essentially because the forces of termination are relatively low, being measured in the tens of pounds for wire gages on the order of 18 to 26 AWG (0,4-1,0 mm), rather than in hundreds of pounds or thousands of pounds as in the case of crimp technology.
  • IDC use has been more spurred by increased productivity than by merely its advantage in stripping insulation.
  • Productivity improvements utilizing IDC have resulted in labor cost reductions per termination on the order of 50 to 70 percent, particularly where the IDC concept is employed in pre-loaded multiple connectors.
  • IDC The main problem with IDC is a perception that what goes in easily comes out easily. Despite efforts to allay this perception by fixes with metal or plastic insulation gripping structures, many users have refrained from employing IDC technology. The success and reliability of proven solder and crimp technology has, to some extent, inhibited the use of IDC concepts.
  • solder can be an excellent electrical terminal terminating technique but one must control the five critical factors or else suffer bad joints, crimp works well with little skill but takes high forces and precision tooling and is limited in center-to-center application and for multiple wire applications; and IDC gives productivity increases and self stripping but can come apart if one can pull or push the wire out of the slot that is the basis of the technology.
  • a method of terminating having the features acknowledged to be known from GB-A-377160, according to the invention is characterised in that the insulated conductor is driven into the slot to effect insulation displacement from a wire core portion gripped and frictionally abraided between opposite sides of the slot to effect electrical and mechanical connection therebetween, and then reflowing the solder at the slotted terminating portion to form a solder joint at the connection.
  • a preferred embodiment is characterised in that a plurality of solder coated terminals are positioned in a housing with solder coated slotted terminating portions arranged in a row, insulated conductors are driven into slots of respective terminals to effect insulation displacement from wire core portions gripped and frictionally abraided between opposite sides of said slots to effect electrical and mechanical connection therebetween, and then reflowing the solder at the slotted terminating portions to form solder joints at the connections.
  • solder reflow is effected by use of electromagnetic means to generate heat when the terminals are in the housing.
  • Eddy current heating results in "internal" heat which can cause a melting and pull back of insulation away from the slot prior to actual solder reflow, at least with certain foamed types of insulation. This provides less potential for contamination of the solder, wire, and slot area.
  • Figure 1 shows a conductor engaging portion of an electrical terminal 10 formed by an upstanding plate portion 12 defining a pair of sharp tines 14, 16 with a slot 18 therebetween and a tapering entry 20 leading to the slot.
  • the terminal can be of any known type, such as that described in U.S. Patent No. 4,040,704, the disclosure of which is incorporated herein by reference.
  • An electrical wire 22, formed by a conductor 24 covered by an insulative layer 26, is poised above slot 18. The end of the wire 22 has been stripped of the insulation 26 so that the conductor 24 is bare.
  • the conductor 24 is a solid copper conductor suitably tin plated in accordance with practice in the art of wire manufacture.
  • the terminal slotted plate portion 12 is intended to represent the conductor engaging portion of an electrical terminal 10 which is stamped and formed of conductive metallic sheet stock having spring properties such as brass, phosphor bronze, or beryllium copper.
  • the wire 22 can represent an AWG table wherein the diameter of the conductor 24 is roughly 0.000254 mm (0.010 thousands of an inch) with the outer diameter of the insulation 26 being 0.00051 mm (0.020 thousands of an inch).
  • Slotted plate structures like that shown in Figure 1 include a height H which is sufficient to define a slot 18 of depth SD allowing for the insertion of the conductor 22 as indicated in Figure 2, 3, and 4 with the conductor 22 being scrubbed by insertion in the slot 18 as it travels therealong.
  • the width dimension SW of the slot 18 can be considered in the range between 40% to 80% of the diameter of the conductor 22.
  • the beveled entry area at the top of plate portion 12 is rendered at an angle 8 which is intended to guide or center insertion of the wire 22 so that the conductor 24 ends up in the slot 18 without being cut off or unduly deformed or pinched.
  • Figure 2 shows in side elevation, partially in section a typical installation tool 28 which contains a slot 30 which fits over plate portion 12 and is arranged to press the wire 22 down into the slot 18, as shown in Figures 3 and 4.
  • the length of the slot 18 is such that the conductor 24 can be moved therealong for between 1 ' to 2) times the diameter of conductor 24 without bottoming the slot 18 so as to be unduly pinched or deformed and yet to get a good scrubbing and wiping action to remove, in the case of the embodiment heretofore discussed, oxide films on the conductor 24 by a mashing and inelastic deformation of the bulk of the conductor smearing, spearing and deforming the in coating thereon and generally scrubbing the surfaces thereof along with the inner surfaces of the slot 18.
  • Figure 4A shows a kind of permanent deformation of conductor 24 which results from proper proportioning of the width SW of the slot 18 relative to the diameter of the conductor 24.
  • the structure of plate 12 is designed to have dimensions H, T and SW such that when a conductor 24 is stuffed or forced into the slot 18, the plate 12 is elastically deformed transversally to the slot 18 to store energy and maintain a forceful engagement with the conductor 24 and the surfaces of slot 18 throughout the life of the resulting connection. What this means is that there is sufficient stored energy to accommodate the inelastic creep that results. If the plate 12 were perfectly rigid and gave not at all there would be no reserve energy and no follow up displacement to maintain the engagement with the wire or conductor 24, other than that within the conductor 24 itself which, because of its dimensions, is relatively less than could be stored in the plate 12.
  • the purpose of the slot 18 and plate .12 is to strip away insulation 26 or oxide films, to rub and scrub the relative engaging surfaces of conductor 24 and slot 18, and to fixture the conductor 24 within slot 18 in a firm manner.
  • stored energy and displacement force from plate 12 to conductor 24 and the surfaces thereof are not only not necessary, but should be limited where possible and practical.
  • the present invention relates to a solder or eutectic joint and stored energy, once this is accomplished, can only create stresses which are undesirable.
  • a coating 32 which represents a solder or eutectic coating, on at least the plate portion 12 of the terminal 10.
  • This coating may be effected in a number of ways, preferably by electro plating in a manner to keeping slot 18 clear, or reasonably clear, and the edges that define the slot sufficiently sharp to do the job of oxide and insulation film or covering displacement.
  • the coating 32 is shown in Figures 1-4 as covering the entire surface of plate portion 12 and in practice this has been done with respect to various samples. In an actual example the structure shown in Figure 1-4A had the following dimensions:
  • the material of the terminal 10 was BeCu 145, a hard. It was prepared by cleaning using standard electro plating practices and the plating applied was a 63/37 tin lead eutectic having a liquid temperature of 183°C (361°F), with no pasty range. With the foregoing dimensions a coating 32 of 0.025 mm (0.001 inches) in thickness was found to be sufficient to effect the job of soldering the conductor 22 to terminal 10. Coating of thicknesses of 0.051-0.076 mm (0.002 and 0.003 inches) were also utilized with good results. The coating of 0.025 mm (0.001 inches) was found to be enough and the coating of 0.075 mm (0.003 inches) was found to be not too much. Electro deposited tin lead eutectic of 90/10 type having a 183°-217°C (361°F-421°F) range was also tried with adequate results, but the 63/37 eutectic is preferred.
  • eutectics and solder coatings 32 which may not extend over the entire surface of terminal 10, but may be selectively applied as by masking. It is also contemplated that eutectics may be applied by laminating, molten dipping, printing, silkscreening, plating, spraying, inlaying, mechanical attachment or the like. Those skilled in the art will also appreciate that it is preferable to apply the solder after forming the terminals as normal tin lead solder will rapidly dull dies.
  • liquid temperature of the coating 32 was approximately 183°C (361°F) sufficient heat was applied to result in the soldering action in a number of different ways.
  • a jet of hot nitrogen was used to effect the solder reflow.
  • hot oil having a temperature well in excess of the phasing temperature of the eutectic, may also be employed.
  • resistance heating, infrared, laser and as will be described in detail hereinafter, a type of eddy current heating resulting from the focusing of electromagnetic alternating fields may be used.
  • FIGs 8 and 9 show an alternate terminal 34 terminating a stranded wire 36 applied in accordance with the invention.
  • This terminal has a folded slotted plate portion similar to that described in U.S. Patent No. 4,261,624, the disclosure of which is incorporated herein by reference. It has been found that the invention is particularly useful with respect to pre-tinned stranded wire. Referring back to Figure 1, the reason is that in many of the commercial IDC structures which have been used over the years the practical thickness W of the plate portion 12 is thin enough to cut strands when taken with the width SW of the slot necessary to generate stored energy onto the stranded wire to effect an IDC connection.
  • the slot width SW and the thickness T have been designed to cut through or breakthrough insulation resulting in a structure which tends to cut stranded conductors. This is particularly true with respect to multiple wire termination where the placement of the wire is less than in the application of one wire into one slotted plate.
  • Figure 9 shows that the solder coating will reflow filling the void between the folded plates of this embodiment while securing the stranded wire therein.
  • terminal embodiments shown in Figures 8 to 14 are three alternates or variations of the invention wherein the termination portion is made to receive 'an insulated wire having a conductor surrounded by insulation.
  • the slotted plate portion is folded over to include a U-shaped portion.
  • the embodiment of Figures 8 and 9 provides a redundancy of interface formed by a pair of plates 38, 40 connected by bights 42, 44, each plate defining a slot 46, 48, a much larger interface and allows for a different type of application of the coating.
  • the solder coating 50 can be applied only to the inside region between the plates 38, 40.
  • the coating 50 can be pre-applied as a stripe, or stripes, by either selective electroplating or inlaying of a solder pre-form roughly 0.025 mm (0.001 inches) thick.
  • the bights of this embodiment are closed tightly so that reflow tends to wick between the interior surfaces.
  • Figures 10 to 13 show a further embodiment of the present invention wherein the terminal 52 includes a folded over plate similarto the embodiment of Figures 8 and 9.
  • the plates 54, 56 have upper portions 58, 60 connected by bights 62, 64 and doubles over and lower portions 66, 68 which are spread apart.
  • the plates 54, 56 include slots 70, 72.
  • This embodiment is intended to be used with insulation which is either relatively thick, has heat insulating characteristics, or is of a quality which is readily split.
  • As the wire 74 is inserted, its insulation 76 will be split by the slots 70, 72 in the upper portions 58, 60 of the plates 54, 56 to then be actually pulled apart, as shown in Figure 12, as the bare conductor 78 is driven into and down the slots 70, 72.
  • the insulation 76 can be seen totally separated in Figures 12 and 13. These figures also show the skiving action of the slots 70, 72 on conductor 78. It should also be noted, from Figure 13, that the insulation 76 can be pulled back by the heat of the reflow operation and/or pushed back by the reflowed solder.
  • Figure 14 shows a further modification of the terminal of Figures 10 to 13 which includes an additional separate slotted blade portion 80 intended to be a further electrical interface with the conductor 78 forced therein.
  • this embodiment is intended for especially thick insulations requiring substantial strength in the terminal.
  • Figures 15 and 16 show a strip 79 of electrical terminals and a single terminal 81, respectively, stamped and formed to include a terminating portion 82 having dual slotted plates for redundancy and suitable coated with solder 84 and front-end contact with spring fingers 86 intended to mate with conductive portions of like terminals.
  • This terminal is of the type described in the previously mentioned U.S. Patent No. 4,040,704.
  • the terminating portion 82 includes slotted plates 88, 90 which are turned at right angles to the insertion axis of the wire 92 which tends to load the spring elements of the slotted plates in torsion giving a different clamping or fixing action relative to stripping and fixturing of the conductor 94 of the wire 92.
  • a region 98 of reduced metallic cross sectional area is formed wherein terminal locking spring elements 100 have been struck-out from the plane of the metal.
  • This region can be controlled in width to sharply limit the transfer of heat from the region of the slotted plates 88, 90 to the region of the spring fingers 86 to prevent annealing of the contact spring fingers.
  • the bulk of the metal in the region of 98 need only be thick . enough to be structurally adequate to hold the terminal together in use and, depending upon the thermal conductivity of the metal, adequate to carry current without excessive resistance.
  • Figure 17 is a perspective view of a representative electrical connector 102 containing numerous terminals 104 terminating a like number of wires 106.
  • Figure 18 shows the connector 102 proximate to a tool 108 which has ferrite magnetic pole pieces 110, 112 shaped to concentrate an electromagnetic field in the region of termination of the connector terminals 104 to the wires 106.
  • tool 108 reference is made to U.S. Patent No. 4,359,620 dated November 16, 1982, to Joseph R. Keller which shows an induction heating apparatus having shaped ferrite pole pieces which focus or concentrate a field of high flux density. An alternating field is produced, indicated by the broken lines between pole pieces 110, 112, which results in eddy current generation in the wire 106 and heating of the metal conductor thereof.
  • the surrounding plastic housing 101 of connector 102 and the wire insulation are not affected by the field, while the focus of the field concentrated in the termination zone creates intense heating of the conductor metal and solder.
  • Figures 20 to 22 show the effect of heat generation by the eddy current.
  • a termination slot of a terminal 104 is shown in section with conductor 106 in the slot and its insulation 114 split, as frequently happens with the PVC, polypropylene, or polyethylene insulation in wide use in industry.
  • Figure 21 shows the resulting melt and pull back of insulation 114 before reflow of the solder coating on the terminal 104.
  • Figure 22 shows the terminal 104 after reflow, with the insulation pulled away, and the solder joint formed.
  • This insulation pull back happens best with eddy current heating where the heat comes from the terminal 104, rather than from an external source, such as with hot nitrogen, vapor phase, resistance or infrared heating which tend to "cook" from the outside surfaces rather than generate heat in the surfaces of the metal parts.
  • Figure 18 also shows the connector 102 with wires terminated. Essentially no damage is done to the housing 101 if the application of heat is quick.
  • Keller induction heating system focused alternating electromagnetic field cycle times of a few seconds are possible. In general this time cycle is a function of the focus of field, the frequency of alternation and the properties of the material to be heated.
  • frequencies of between 20 and 200 Khz have been tried using the Keller unit and apparatus.
  • the eddy current heating approach is a preferred way when using connector housings pre-loaded with many terminals. Commercial induction machines with special coils may also be employed, as other means discussed, with results varying from barely adequate to excellent.
  • Figures 20 to 22 represent almost a classic case for effecting termination with the present invention. In most instances where the wire is not prestripped, the insulation is cut only on both sides and may remain intact above and below the conductor as shown in Figures 19 and 20. This usually, but not always, will separate during the heating cycle.
  • any of a number of fluxes can be used with the present invention.
  • a water soluble flux could be applied immediately before reflow. If it were also electrically nonconductive and noncorrosive, it could simply be washed away after reflow. It would also be possible to precoat the terminals with an oxidizing inhibitor which would act as a cleaning agent.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
EP85904574A 1984-10-17 1985-09-13 Select solder slot termination method and product Expired EP0201512B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66174484A 1984-10-17 1984-10-17
US661744 1984-10-17

Publications (2)

Publication Number Publication Date
EP0201512A1 EP0201512A1 (en) 1986-11-20
EP0201512B1 true EP0201512B1 (en) 1989-08-16

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EP85904574A Expired EP0201512B1 (en) 1984-10-17 1985-09-13 Select solder slot termination method and product

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EP (1) EP0201512B1 (es)
JP (1) JPS62500621A (es)
KR (1) KR880700479A (es)
BR (1) BR8506983A (es)
DE (1) DE3572425D1 (es)
ES (2) ES8703673A1 (es)
IE (1) IE56877B1 (es)
WO (1) WO1986002497A1 (es)

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DE10129840B4 (de) * 2001-06-21 2020-10-08 Robert Bosch Gmbh Elektrisches Gerät
JP5532083B2 (ja) * 2011-10-06 2014-06-25 株式会社デンソー 内燃機関用点火コイル
FR2983648B1 (fr) * 2011-12-01 2018-04-13 Sc2N Contact de connecteur electrique pour la connexion a un fil d'un composant electronique
JP5699949B2 (ja) * 2012-01-23 2015-04-15 Tdk株式会社 コイル部品の製造方法とワイヤの継線方法
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CN212805563U (zh) * 2020-07-20 2021-03-26 漳州立达信灯具有限公司 金属刺破端子及灯具
JP7155218B2 (ja) * 2020-10-07 2022-10-18 矢崎総業株式会社 圧接構造、端子付き電線及びその製造方法
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AU5574573A (en) * 1972-05-30 1974-11-21 Amp Inc Electrical contact elements and connectors electrical contact elements and connectors
NZ182873A (en) * 1976-01-02 1980-11-28 Amp Inc Wire slitting terminal and integral housing for same
CA1115796A (en) * 1980-07-03 1982-01-05 Northern Telecom Limited Retainer member with dual action cantilever beams

Also Published As

Publication number Publication date
ES8703673A1 (es) 1987-02-16
KR880700479A (ko) 1988-03-15
ES547905A0 (es) 1987-02-16
IE852321L (en) 1986-04-17
WO1986002497A1 (en) 1986-04-24
BR8506983A (pt) 1987-01-06
ES289644Y (es) 1986-10-01
DE3572425D1 (en) 1989-09-21
ES289644U (es) 1986-03-01
JPS62500621A (ja) 1987-03-12
IE56877B1 (en) 1992-01-15
EP0201512A1 (en) 1986-11-20

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