GB2341280A - Terminal connectors - Google Patents

Terminal connectors Download PDF

Info

Publication number
GB2341280A
GB2341280A GB9818809A GB9818809A GB2341280A GB 2341280 A GB2341280 A GB 2341280A GB 9818809 A GB9818809 A GB 9818809A GB 9818809 A GB9818809 A GB 9818809A GB 2341280 A GB2341280 A GB 2341280A
Authority
GB
United Kingdom
Prior art keywords
printed circuit
circuit board
invention according
cross
receiving aperture
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Withdrawn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
GB9818809A
Other versions
GB9818809D0 (en
Inventor
Geoffrey Edward Russell
Paul Gerald Aston
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.)
MILES PLATTS Ltd
Original Assignee
MILES PLATTS Ltd
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 MILES PLATTS Ltd filed Critical MILES PLATTS Ltd
Priority to GB9818809A priority Critical patent/GB2341280A/en
Publication of GB9818809D0 publication Critical patent/GB9818809D0/en
Priority to EP99941778A priority patent/EP1027754A1/en
Priority to AU55271/99A priority patent/AU5527199A/en
Priority to PCT/GB1999/002856 priority patent/WO2000013263A1/en
Publication of GB2341280A publication Critical patent/GB2341280A/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the 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
    • 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
    • H01R13/41—Securing in non-demountable manner, e.g. moulding, riveting by frictional grip in grommet, panel or base
    • 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
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/304—Clamped connections, spring connections utilising a screw or nut clamping member having means for improving contact

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

A terminal connector for use in mounting an electrical component such as the frame (6) of an inductance winding bobbin, on a printed circuit board (9), is formed by a pressing operation, such as from brass. The terminal connector comprises a first portion (8) in the form of a toothed finger, which may be inserted securely into a receiving aperture (7) of the electrical component, and a second portion (10) for insertion into the receiving aperture (16) of a printed circuit board (8). The second portion (10) is resiliently compressible in one cross-sectional dimension, and is initially oversized in relation to the dimensions of the aperture (16), such that on insertion of the portion (10) into the aperture (16), the portion (10) is radially compressed, and by virtue of the resilience of the material from which it is formed, maintains good contact with the soldered walls bounding the aperture (16). In this way it has been found that a connection may be made with the printed circuit board without the requirement subsequently to solder the terminal connector to the printed circuit board.

Description

1 2341280
Title: Terminal Connectors Description of Invention
This invention relates to terminal connectors for electrical components, particularly but not exclusively for inductance winding bobbins.
When it is desired to secure an electrical component such as an in inductance winding bobbin to a printed circuit board, it is necessary, to provide terminals connected interiorally of the component, for the exterior connection by eg. soldering to the printed circuit board.
Conventionally the frame of the bobbin is provided with a plurality,. of receiving apertures into which wire is inserted by a pressing operation: on completion of insertion, the wire is cropped to an appropriate length, and is formed as desired to provide a protruding pin for a convenient connection to a printed circuit board, and to provide a ten-ninal portion to ",lilcli electrical wiring (eg.) may be secured, again conveniently by soldering.
For con-nection of the bobbin to the printed circuit board, the pins are inserted from the front through appropriate receiving apertures in the printed circuit board, so that the pins protrude marginally fl.om the back, and are secured in position by soldering.
The soldering operation is time consuming and requires that the back of the printed circuit board be cleaned, notwithstanding a number of components may already be mounted thereon.
According to this invention there is provided a method of connecting an electrical component to a printed circuit board involving the use of a terminal connector formed by a pressing operation to provide a first portion and a second portion, and the steps a) pressing the first portion into a receiving aperture of the electrical component; b) pressing the second portion into a receiving aperture of a printed circuit board, such that the second portion enters into acceptable conductive contact with the printed circuit board without the necessity, for subsequent soldering.
Preferably said second portion is resiliently compressible in crosssection, and is compressed in cross-section in consequence of being inserted into the receiving aperture of the printed circuit board.
According to this invention there is also provided a terminal connector for securing an electrical component to a printed circuit board, comprising a first portion for location in a receiving apei-ture of the electrical component, and a second portion for location in a receiving aperture of a printed circuit board, characterised in that said second portion is deformable in cross-section in consequence of being inserted into the receiving aperture of the printed circuit board.
Thus conveniently, the second portion is made oversized in one crosssectional dimension in comparison with the size of the receiving aperture of the printed circuit board, being reduced in said crosssectional dimension in consequence of being pressed into said receiving aperture.
Preferably the second portion is of stretched cross-section, having lobes which extend on opposite sides of a narrower central region.
Preferably means is provided to assist partial folding of the crosssection during insertion. Thus conveniently,' two lines which extend from the centre of the cross-section centrally through each lobe subtend an angle of less an 180', whereby when a compressive force is exerted on the lobes, they, may move towards one another in a folding operation.
Preferably the terminal connector is formed, such as by a pressing operation, of a material which provides resilience when deformed, and thus causes a reaction force to be exerted against the walls of the aperture of the printed circuit board, thus ensuring good conductive contact therewith. For example, the terminal connector may be stamped from brass, preferably being plated with nickel and/or tin/lead.
Conveniently the terminal connector provides a shoulder which limits the distance of insertion of the second portion into the aperture. Preferably the first portion is serrated, enabling it to be securely received within the receiving aperture of the component.
Preferably the first and second portions are generally in line, and preferably a connection portion protrudes generally at right angles to a line passing through the first and second portions.
Preferably the second portion is provided with a lead of smaller crosssection, ensuring a correct alignment of the second portion with the receiving aperture of the printed circuit board on insertion therein.
There will now be given a detailed description, to be read with reference to the accompanying drawings, of a terminal connector which is a preferred embodiment of this invention, having been selected for the purposes of illustrating the invention by way of example.
In the accompanying drawings:
FIGURE I is an elevational view showing the terminal connector in use in connecting an electrical component to a printed circuit board, and FIGURE 2 is a sectional view through a second portion of the terminal connector, taken on the line 11-11 of Figure 1.
The terminal connector which is the preferred embodiment of this invention is specifically for use in connecting an electrical component, such as the frame 6 of an inductance winding bobbin, to a printed circuit board 9, and is formed by a pressing operation from brass, coated with con-",ement materials for assisting conductive contact with additional electrical components.
The terminal connector comprises a first portion 8, in the form of a toothed finger, which may be press-fitted into a receiving aperture 7 of the 4 component 6, and substantially in line with the first portion 8, a second portion 10 from which extends a tapered lead 12.
Extending from the first portion 8 is a connection portion 14, extending generally at right angles to the line extending through the first and second portions, to which electrical wiring or the like may be connected by soldering.
The terminal connector which is the preferred embodiment of this invention is for use with a printed circuit board of the kind provided with a plurality of receiving apertures 16, which in conventional manner are soldered on the interior walls bounding the aperture 16. The second portion 10 is compressible in cross-section in consequence of insertion into the aperture, and is thus marginally, oversized in relation to the cross-sectional dimensions of the aperture. In particular, the crosssectional dimension A is marginally bigger than the diameter of the receiving aperture 16, shown in dotted lines in Figure 2.
In cross-section the second portion is of stretched configuration, comprising an elongate central section 20 which is relatively! narrow in crosssection, from which lobes 22a, 22h extend. Additionally the central section is so formed that the angle a, subtended by two lines passing from the central section through the centres of the two lobes 22a and 22b, is less than 180', whereby, as radial compressive forces are exerted against the second portion 10, the two lobes move in the directions X,Y (Figure 2) in a folding operation, as they become accommodated within the aperture 16.
Being of a resilient material, the lobes by, virtue primarily of the springiness of the central section 20. exert a significant continuous force against the walls 16 of the receiving aperture, thus ensuring, a good conductive contact with the layer of solder provided on the walls 16.
It has been found that by the use of the present invention sufficient force is exerted by the second portion on the walls of the receiving aperture 16 to ensure a retention of the terminal connector therein throughout the normal vibration testing. Notwithstanding, it is possible after completion of assembly to remove the component 6 from the printed circuit board, involving pulling of the terminal connector from the aperture 16, and allowing subsequent reinsertion of the portion 10 into the aperture 16, without any subsequent problem.
The features disclosed in the foregoing description, or the following claims, or the accompanying drawings, expressed in their specific forms or in terms of a means for performing the disclosed function, or a method or process for attaining the disclosed result, as appropriate, may, separately, or in any combination of such features, be utilised for realising the invention in diverse fornis thereof

Claims (1)

  1. 6 CLAIMS
    1 A method of connecting an electrical component to a printed circuit board involving the use of a terminal connector formed by a pressing operation to provide a first portion and a second portion, and the steps a) pressing the first portion into a receiving aperture of the electrical component; and b) pressing the second portion into a receiving aperture of a printed circuit board, such that the second portion enters into acceptable conductive contact with the printed circuit boA.d "'Ithout the necessity for subsequent soldenrig.
    2 A method according to Claim 1 wherein the second portion is resiliently compressible in cross-section, and is compressed in cross-section in consequence of being inserted into the recevving aperture of the printed circuit board.
    A terminal connector for securing an electrical component to a printed circuit board comprising a first portion for location in a receivin -c of C g) apertui the electrical component, and a second portion for location in a receiving aperture of a printed circuit board.
    characterised in that said second portion is deforinable in cross-section in consequence of being inserted into the receiving aperture of the printed circuit board.
    4 The invention according to any, one of the preceding claims wherein the c second portion is made oversized in one cross-sectional dimension in comparison with the size of the receivino aperture of the printed circuit board, 7 being reduced in said cross-sectional dimension in consequence of being pressed into said receiving aperture.
    The invention according to any one of the preceding claims wherein the second portion is of stretched cross-section, having lobes which extend on opposite sides of a narrower central region.
    6 The invention according to any one of the preceding claims wherein means is provided to assist partial folding of the cross-section of the second portion during insertion into the receiving aperture of the printed circuit board.
    7 The invention according to Claim 5 wherein t,,,o lines which extend from the centre of the cross-section centrally through each lobe subtend an angle of less than 180'.
    8 The invention according to any one of the preceding., claims wherein the :1 terminal is formed of a material which provides resilience when deformed.
    9 The invention according to any one of the preceding claims wherein the terminal is stamped from brass.
    The invention according to any one of the preceding claims wherein the terminal connector provides a shoulder which limits the distance of insertion of the second portion into the receiving aperture of the printed circuit board.
    11 The invention according to any one of the preceding, claims wherein the C.
    first portion is serrated, enabling it securely to be received within the receiving aperture of the component.
    8 12 The invention according to any one of the preceding claims wherein the first and second portions are generally in line, and the terminal comprises a connection portion which protrudes generally at right angles to a line passing through the first and second portions.
    13 The invention according to any one of the preceding claims wherein the second portion is provided witli a lead of smaller cross-section.
    14 Any novel feature or novel combination of features described herein and/or in the accompanying drawings.
    1 0
GB9818809A 1998-08-29 1998-08-29 Terminal connectors Withdrawn GB2341280A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9818809A GB2341280A (en) 1998-08-29 1998-08-29 Terminal connectors
EP99941778A EP1027754A1 (en) 1998-08-29 1999-08-31 Terminal connector
AU55271/99A AU5527199A (en) 1998-08-29 1999-08-31 Terminal connectors
PCT/GB1999/002856 WO2000013263A1 (en) 1998-08-29 1999-08-31 Terminal connectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9818809A GB2341280A (en) 1998-08-29 1998-08-29 Terminal connectors

Publications (2)

Publication Number Publication Date
GB9818809D0 GB9818809D0 (en) 1998-10-21
GB2341280A true GB2341280A (en) 2000-03-08

Family

ID=10837999

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9818809A Withdrawn GB2341280A (en) 1998-08-29 1998-08-29 Terminal connectors

Country Status (4)

Country Link
EP (1) EP1027754A1 (en)
AU (1) AU5527199A (en)
GB (1) GB2341280A (en)
WO (1) WO2000013263A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010034790A1 (en) * 2010-08-18 2012-02-23 Erni Electronics Gmbh Device for contact of electric guard of cable with strip guard of circuit board, has locking element that is provided in surface of contact carrier in opposite to press contacts for lock in contact carrier
WO2012080839A1 (en) * 2010-12-16 2012-06-21 Fci Contact pin, header connector and connector assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359258A (en) * 1980-01-14 1982-11-16 Trw Inc. Electrical connector
US5743769A (en) * 1995-08-08 1998-04-28 Ddk Ltd. Press-in contact and a method for manufacturing the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521827A (en) * 1981-10-23 1985-06-04 Thermalloy, Inc. Heat sink mounting
DE3241061C2 (en) * 1982-11-06 1986-04-10 Erni Elektroapparate Gmbh, 7321 Adelberg Elastic press-fit pin for the solderless connection of the winding posts of electrical connectors or the like. with through-plated printed circuit boards and processes for its manufacture
GB8908411D0 (en) * 1989-04-13 1989-06-01 Amp Holland Surface mount electrical connector
GB8914987D0 (en) * 1989-06-29 1989-08-23 Amp Gmbh Connecting device for use with fine wire
JPH0697620B2 (en) * 1990-07-26 1994-11-30 ヒロセ電機株式会社 Electric contact terminal and manufacturing method thereof
DE29700703U1 (en) * 1997-01-16 1998-05-14 Robert Bosch Gmbh, 70469 Stuttgart Device for contacting electrical components

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359258A (en) * 1980-01-14 1982-11-16 Trw Inc. Electrical connector
US5743769A (en) * 1995-08-08 1998-04-28 Ddk Ltd. Press-in contact and a method for manufacturing the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010034790A1 (en) * 2010-08-18 2012-02-23 Erni Electronics Gmbh Device for contact of electric guard of cable with strip guard of circuit board, has locking element that is provided in surface of contact carrier in opposite to press contacts for lock in contact carrier
DE102010034790B4 (en) 2010-08-18 2018-04-26 Erni Production Gmbh & Co. Kg Contact carrier for at least one device for contacting an electrical conductor with a conductor track
WO2012080839A1 (en) * 2010-12-16 2012-06-21 Fci Contact pin, header connector and connector assembly
US9190774B2 (en) 2010-12-16 2015-11-17 Fci Contact pin, header connector and connector assembly

Also Published As

Publication number Publication date
GB9818809D0 (en) 1998-10-21
AU5527199A (en) 2000-03-21
EP1027754A1 (en) 2000-08-16
WO2000013263A1 (en) 2000-03-09

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)