EP0280450A2 - Elektrischer Verbinder - Google Patents

Elektrischer Verbinder Download PDF

Info

Publication number
EP0280450A2
EP0280450A2 EP88301246A EP88301246A EP0280450A2 EP 0280450 A2 EP0280450 A2 EP 0280450A2 EP 88301246 A EP88301246 A EP 88301246A EP 88301246 A EP88301246 A EP 88301246A EP 0280450 A2 EP0280450 A2 EP 0280450A2
Authority
EP
European Patent Office
Prior art keywords
female
terminal
inlet opening
male
cavity
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
EP88301246A
Other languages
English (en)
French (fr)
Other versions
EP0280450A3 (en
EP0280450B1 (de
Inventor
Yuuji Yamada
Tomoaki Itoh
Sinsuke Kunishi
Yoshiyuki Mizuno
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.)
Molex LLC
Original Assignee
Molex LLC
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 Molex LLC filed Critical Molex LLC
Publication of EP0280450A2 publication Critical patent/EP0280450A2/de
Publication of EP0280450A3 publication Critical patent/EP0280450A3/en
Application granted granted Critical
Publication of EP0280450B1 publication Critical patent/EP0280450B1/de
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
    • 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
    • H01R4/028—Soldered or welded connections comprising means for preventing flowing or wicking of solder or flux in parts not desired
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/716—Coupling device provided on the PCB
    • 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
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4536—Inwardly pivoting shutter

Definitions

  • the present invention relates to an electrical connector, and more particularly to an electrical connector for connecting printed circuit boards together.
  • such an electrical connector comprises a male connector housing having a plurality of male terminal pins and a female connector housing having a plurality of female terminals with pin-engaging spring contact portions.
  • the male connector housing is fixed to one printed circuit board, and the female connector housing is fixed to the other printed circuit board. Then, these printed circuit boards can be detachably connected to each other by mating the male and female terminals of the male and female connector housings.
  • an automatic soldering apparatus is used to jet out melted solder against the underside of the printed circuit boards and electrically connect the male and female terminals to the printed circuit boards one after another in lots in a process commonly referred to as a wave-soldering operation.
  • flux is applied to selected portions of the printed circuit boards to provide a solder resistant protective barrier for circuitry defined on the upper connector engaging surface of the circuit boards. The flux is liable to creep up into the female terminal contact areas through the inlets provided in the female connector housings for inserting the male terminal pins.
  • the membrane barrier may be a thin closure having a cut at the center thereof. This thin closure is useful in preventing flux from creeping up to female terminals, but it has the following defects:
  • the closure must allow a male terminal pin to enter an associated female terminal when the male and female connector housings are mated with each other. During mating, the male terminal pin thrusts through the cut of the thin closure to break and open the cut wide. (1) This, however, requires an appreciable force to thrust and break the thin closure, and therefore, male terminals cannot be smoothly inserted in associated female terminals. (2)
  • the thin membrane barriers are made as an integral part of the female housings, and therefore, the material of the female housing must be selected, considering what material is easy to be ruptured when reduced to a thin wall. This reduces the degree of freedom in selecting the material of the female terminal housing.
  • small broken pieces of the membrane material may be carried by the male terminal pin when the thin closure is penetrated by the male pin, and sometimes such small fragments are attached to the contact surface of the female terminal, causing poor electrical contact in the contact area.
  • An object of the present invention is to provide an improved electrical connector for printed circuit boards which connector permits the smooth insertion of its male terminals into its female terminals.
  • the present invention provides an electrical connector for printed circuit boards which includes: a female connector housing having a plurality of female terminal springs in terminal receiving cavities or compartments, the inlet of each compartment including barrier means to prevent invasion of flux into the compartment during a flux treatment preparatory to wave soldering characterized by said barrier means including a square or rectangular flap, one side of which is integrally connected to one wall of the compartment and the other three sides of which flap are close to, but free from, the corresponding walls of the compartment, the free end side of the flap opposite to said one hinged side of the flap closure confronting the wall of the compartment against which the female terminal spring resiliently pushes itself in the direction in which its resilient force is applied, and the remaining opposite (left and right) sides extending between said hinged end and free end (front and rear) sides.
  • the central feature of the present invention resides in: using a closure flap integrally connected to the inlet of a female terminal compartment in the form of cantilever to close the inlet of the compartment, thereby preventing flux from creeping up to the female terminal in the compartment in applying flux to selected portions of an associated printed circuit board; and allowing the male terminal pin to enter the compartment by yieldingly bending the closure flap; thus assuring the smooth insertion of the male terminal pin into the female terminal.
  • a flap closure closes the inlet of each female terminal compartment to prevent flux from creeping up to the female terminal in applying flux to selected portions of a printed circuit board preparatory to wave soldering.
  • the male terminal pins are inserted into corresponding female terminals by opening the closure-­flap hinged to the inlets of the female terminal compart­ments, thus producing no broken pieces of barrier material and assuring good electrical contact between the male and female terminals when mated with each other.
  • a female connector housing is indicated at 1. It is shown as comprising a rear wall 2, left and right side walls 3 and 4 integrally connected to the opposite ends of the rear wall, a plurality of partition walls 5 arranged at regular intervals and integrally connected to the rear wall and a plurality of terminal-mount partition walls 6 each integrally connected to and extending between adjacent partition walls 5 and between the left side wall 3 and the adjacent partition walls 5 and between the right side wall 4 and the adjacent partition wall 5, thus forming, in this particular embodiment, five female terminal mounting compartments 7.
  • the number of the compartments may be selected as desired.
  • a female terminal spring 8 is mounted on each terminal-­mount partition 6. As is best shown in FIG. 3, the bent resilient portion 9 of the female terminal 8 is put in the compartment space 7 to apply its resilient force against the inside surface 12 of the rear wall 2 in the direction as indicated by arrow A.
  • the extending portion 10 of the general terminal 8 appears partly out of the bottom wall 1 of the female connector housing 1.
  • Each compartment has an opening 13 made in the bottom wall 11 in the vicinity of the inside surface 12 of the rear wall 2.
  • the compartment has a closure flap 14 integrally connected to the bottom side in the form of cantilever.
  • each terminal inlet 13 has a square opening large enough to permit insertion of a male terminal pin, which is square in section.
  • the terminal inlet 13 is defined by four inclined surfaces 15, 16, 17 and 18.
  • One side 19 of the closure flap 14 is integrally connected to the edge of the front surface 15, and the other three sides 20, 21 and 22 of the closure flap 14 are close to, but free from the back, left and right surfaces 17, 16 and 18.
  • the side 20 of the flap 14 which confronts the inside surface 12 of the rear wall 2 is cut away from the back surface 17, and the opposite sides 21 and 22 which extend from the opposite ends of the side 20, are cut away from the left and right surfaces 16 and 18.
  • closure flap 14 is inclined at approximately 30 degrees with its side 20 up.
  • the closure flap 14 holds this position until a male terminal pin 24 is inserted in the compartment, thus normally substantially closing the inlet of the compartment.
  • the material of which a female connector housing is made is not limited to a specific material, but in one example it is Nylon 66.
  • the intervals at which female terminals 9 are arranged in the terminal mounting spaces 7 can be selected as desired. In one example female terminals are arranged at intervals of 2mm, and then the thickness of the closure flap is preferably 0.1 or less mm. As a matter of course the thickness of the closure flap 14 may vary with the size, shape and material of the female connector housing, the interval between female terminals and other factors.
  • Every compartment of the female connector housing 1 is closed by an associated closure flap 14, and therefore, no flux can creep into the inside of the compartment when flux is applied to selected portions of an associated printed circuit board "M" prior to soldering the female connector housing 1 thereto with an automatic soldering apparatus.
  • a male connector housing is fixed to another printed circuit board "N". Referring to FIGS. 8 and 9, it is described how the male terminal pins 24 of the male connector housing 23 are mated with the female terminal springs 9 of the female connector housing 1.
  • the male terminal pins 24 are inserted in the inlets 13 of compartments 7 of the female connector housing 1, as shown in broken lines in FIG. 8. Then, the male terminal pins 24 are pushed in the compartments 7.
  • Their closure flaps 14 are yieldingly bent, as shown in solid line in FIG. 8, thereby allowing the male terminal pins 24 to mate with the female terminal groups 9, as shown in FIG. 9.
  • Each closure flap 14 is integrally connected to the inlet edge of each compartment in the form of cantilever. Specifically, the closure flap 14 is fixed at one side 19 thereof, and is free at the other sides 20, 21 and 22. Therefore, the closure flap 14 will allow a male terminal pin 24 to enter the compartment without substantial resistance. When the male terminal pin 24 is inserted in the compartment 7, it is pushed against the surface 12 of the rear wall of the compartment 7 by the female terminal spring 8. Thus, the two printed circuit boards "M" and "N" are mechanically and electrically connected with each other.
  • the closure flap 14 is inclined, thereby making it easy to open the closure flap, and at the same time assisting the male terminal pin 24 in moving on the inside surface 12 of the rear wall 2 of the compartment when the male terminal pin is being inserted in the compartment.
  • the electrical connector described in detail with reference to the drawings prevents flux from creeping up into the female terminal compartments when applying flux to selected portions of an associated printed circuit board prior to soldering with an automatic soldering apparatus; it allows the male terminal pins to enter the female terminal compartments without resistance thanks to the use of closure flaps in the form of canti­levers; the use of closure flaps in the form of canti­levers in place of closures which are to be broke by male terminal pins, increases the degree of freedom in selecting the material of the female connector housing; and no broken pieces of closure flap material are carried by the male terminal pins to be attached to the female terminal contacts as is the case with the conventional electrical connector using closure flaps to be broken, and therefore good electrical contact is assured between male and female terminals when mated with each other.
  • the connector does not reduce the degree of freedom in selecting the material of the female housing and the anti-wicking flux barrier feature does not liberate debris in use into the contact areas of a female terminal, thereby assuring good electrical contact between male and female terminals.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
EP88301246A 1987-02-26 1988-02-15 Elektrischer Verbinder Expired - Lifetime EP0280450B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1987028036U JPH046134Y2 (de) 1987-02-26 1987-02-26
JP28036/87U 1987-02-26

Publications (3)

Publication Number Publication Date
EP0280450A2 true EP0280450A2 (de) 1988-08-31
EP0280450A3 EP0280450A3 (en) 1989-10-18
EP0280450B1 EP0280450B1 (de) 1993-04-07

Family

ID=12237506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88301246A Expired - Lifetime EP0280450B1 (de) 1987-02-26 1988-02-15 Elektrischer Verbinder

Country Status (4)

Country Link
EP (1) EP0280450B1 (de)
JP (1) JPH046134Y2 (de)
BR (1) BR8800745A (de)
DE (1) DE3879986T2 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0486845A2 (de) * 1990-11-19 1992-05-27 Molex Incorporated Elektrischer Verbinder mit Lötmaske
US5626482A (en) * 1994-12-15 1997-05-06 Molex Incorporated Low profile surface mountable electrical connector assembly
EP0999612A2 (de) * 1998-11-05 2000-05-10 SUMITOMO WIRING SYSTEMS, Ltd. Oberflächenmontierbarer elektrischer Verbinder und metallische Kontaktklemme dazu
US6089904A (en) * 1999-04-16 2000-07-18 Hon Hai Precision Ind. Co., Ltd. FFC connector
WO2000078213A3 (en) * 1999-06-09 2001-05-10 Aspect Medical Systems Inc A smart electrophysiological sensor system with automatic authentication and validation
SG83104A1 (en) * 1997-06-25 2001-09-18 Thomas & Betts Corp Electrical connector with a releasable housing
DE10204842B4 (de) * 2001-02-06 2005-01-05 Yazaki Corp. Leiterplattensteckverbinder
FR2866484A1 (fr) * 2004-02-17 2005-08-19 Souriau Connecteur electrique muni d'au moins un insert, et procede de montage d'un connecteur sur un circuit d'interconnexion
EP3200288A1 (de) * 2016-01-29 2017-08-02 Wago Verwaltungsgesellschaft mbH Gehäuse eines elektrischen steckverbinders oder zur aufnahme eines elektrischen steckverbinders

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1830120A (zh) * 2003-08-01 2006-09-06 Fci亚洲技术有限公司 连接器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1465176A1 (de) * 1964-06-08 1969-02-20 Amp Inc Steckverbindungsteil
US4010992A (en) * 1976-01-08 1977-03-08 Aries Electronics, Inc. Low profile socket having terminal pins sealingly mounted in socket housing
US4114008A (en) * 1976-06-14 1978-09-12 Teltec, Incorporated Relay seal cap

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50118485U (de) * 1974-03-13 1975-09-27
JPS5611349U (de) * 1979-07-04 1981-01-30

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1465176A1 (de) * 1964-06-08 1969-02-20 Amp Inc Steckverbindungsteil
US4010992A (en) * 1976-01-08 1977-03-08 Aries Electronics, Inc. Low profile socket having terminal pins sealingly mounted in socket housing
US4114008A (en) * 1976-06-14 1978-09-12 Teltec, Incorporated Relay seal cap

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0486845A2 (de) * 1990-11-19 1992-05-27 Molex Incorporated Elektrischer Verbinder mit Lötmaske
EP0486845A3 (en) * 1990-11-19 1993-04-14 Molex Incorporated Electrical connector with solder mask
US5626482A (en) * 1994-12-15 1997-05-06 Molex Incorporated Low profile surface mountable electrical connector assembly
US6655997B2 (en) 1997-06-25 2003-12-02 Chua Sze Lam Electrical connector with a releasable housing
SG83104A1 (en) * 1997-06-25 2001-09-18 Thomas & Betts Corp Electrical connector with a releasable housing
EP0999612A3 (de) * 1998-11-05 2002-01-30 SUMITOMO WIRING SYSTEMS, Ltd. Oberflächenmontierbarer elektrischer Verbinder und metallische Kontaktklemme dazu
EP0999612A2 (de) * 1998-11-05 2000-05-10 SUMITOMO WIRING SYSTEMS, Ltd. Oberflächenmontierbarer elektrischer Verbinder und metallische Kontaktklemme dazu
US6089904A (en) * 1999-04-16 2000-07-18 Hon Hai Precision Ind. Co., Ltd. FFC connector
WO2000078213A3 (en) * 1999-06-09 2001-05-10 Aspect Medical Systems Inc A smart electrophysiological sensor system with automatic authentication and validation
US6298255B1 (en) 1999-06-09 2001-10-02 Aspect Medical Systems, Inc. Smart electrophysiological sensor system with automatic authentication and validation and an interface for a smart electrophysiological sensor system
DE10204842B4 (de) * 2001-02-06 2005-01-05 Yazaki Corp. Leiterplattensteckverbinder
FR2866484A1 (fr) * 2004-02-17 2005-08-19 Souriau Connecteur electrique muni d'au moins un insert, et procede de montage d'un connecteur sur un circuit d'interconnexion
EP3200288A1 (de) * 2016-01-29 2017-08-02 Wago Verwaltungsgesellschaft mbH Gehäuse eines elektrischen steckverbinders oder zur aufnahme eines elektrischen steckverbinders
CN107026347A (zh) * 2016-01-29 2017-08-08 Wago管理有限责任公司 电插塞连接器的或用于容纳电插塞连接器的壳体
CN107026347B (zh) * 2016-01-29 2020-08-18 Wago管理有限责任公司 电插塞连接器的或用于容纳电插塞连接器的壳体

Also Published As

Publication number Publication date
EP0280450A3 (en) 1989-10-18
DE3879986T2 (de) 1993-11-11
BR8800745A (pt) 1988-10-04
EP0280450B1 (de) 1993-04-07
JPS63137480U (de) 1988-09-09
JPH046134Y2 (de) 1992-02-20
DE3879986D1 (de) 1993-05-13

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