EP0224559B1 - Leitungsverbindung für gedruckte schaltungen - Google Patents

Leitungsverbindung für gedruckte schaltungen Download PDF

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Publication number
EP0224559B1
EP0224559B1 EP86903814A EP86903814A EP0224559B1 EP 0224559 B1 EP0224559 B1 EP 0224559B1 EP 86903814 A EP86903814 A EP 86903814A EP 86903814 A EP86903814 A EP 86903814A EP 0224559 B1 EP0224559 B1 EP 0224559B1
Authority
EP
European Patent Office
Prior art keywords
contact
contact portion
section
electrical terminal
terminal
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
EP86903814A
Other languages
English (en)
French (fr)
Other versions
EP0224559A1 (de
Inventor
Akira Kawaguchi
Takinori Sasaki
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
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
Priority claimed from JP60110632A external-priority patent/JPS61271765A/ja
Priority claimed from JP8399985U external-priority patent/JPH02862Y2/ja
Application filed by AMP Inc filed Critical AMP Inc
Publication of EP0224559A1 publication Critical patent/EP0224559A1/de
Application granted granted Critical
Publication of EP0224559B1 publication Critical patent/EP0224559B1/de
Expired 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
    • 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
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/05—Resilient pins or blades
    • H01R13/052—Resilient pins or blades co-operating with sockets having a circular transverse section

Definitions

  • the present invention relates to an electrical terminal for interconnecting a circuit board with a power supply section, and more particularly to an electrical terminal which occupies minimal space and requires no tools for connection to the circuit board or the power supply.
  • Electrical terminals for transmitting current from a power supply section to circuit elements on a circuit board are known in the industry.
  • the electrical terminal shown in Figure 1 is one such terminal.
  • the power supply is connected to the connector through the use of a screw requiring the use of tools for proper installation. This is particularly labor intensive when the circuit board has a large current capacity which requires a plurality of terminals, each of which must have the power supply individually secured by a screw. Further, this type of design occupies a relatively large area on the circuit board which causes problems when high density circuit elements are required.
  • the contact pins cannot be arranged at equal intervals corresponding with the holes of the circuit board because the width of the terminal must be relatively large in order to allow for insertion of the screw and to provide for a flat power supply receiving surface having a width at least equal to the width of the power supply source. Consequently, the rows of contact pins must be spaced from each other more than an optimal amount.
  • the press-fit type contact pins used in terminals of this type are disclosed in US Patent No. 4 186 982. It is essential that the material of the contact pin have a thickness sufficient to withstand the large elastic force which is applied thereto. In order for easy manufacture of terminals using this contact pin, the thickness required for the contact pin must be maintained throughout the terminal. This can be done in devices such as the above-described electrical terminal which require hardware for installation. However, if the thick metal plate is bent to form a smaller diameter tubular male contact, eliminating the need for hardware, cracks are created on the tubular surface because of the small radius of curvature of the tubular portion.
  • An object of the present invention is to provide a compact electrical terminal having a plurality of press-fit type contact pins at one end thereof and a contact portion engageable with a matable contact at the other end.
  • the terminal may be easily manufactured and ensures reliable electrical connection while reducing the area needed by the terminal on the circuit board.
  • the contact pins include a mounting portion which is resiliently press-fitted into the holes of the circuit board and fixed therein.
  • the contact portion is provided with a noncylindrical contact section having a thickness identical with that of the contact pins.
  • the contact portion is also provided with a resilient contact arm stamped and formed from a part of the contact portion. Lances are provided so that the terminals may be enclosed in a housing if necessary.
  • Figure 2 shows an electrical power terminal 10 of the present invention which is stamped and formed from a metal sheet having desirable conductive and spring characteristics.
  • Terminal 10 has a rectangular annular base 11 and a male contact section 18 extending upwardly from base 11.
  • Base 11 has a plurality of contact pins 14 which project downward from lower end surfaces of opposed walls 12 and 13. Contact pins 14 are spaced such that pins 14 correspond with the spacing of holes 30 provided on circuit board 50. Although terminal 10 shown in Figure 2 has four contact pins 14, the number of pins 14 varies depending on the current to be transmitted to circuit board 50. The more current transmitted will require more contact pins 14to accommodate the increased current. Contact pins 14 are of the type disclosed in US Patent No. 4 186 982, the disclosure of which is incorporated herein by reference.
  • Each contact pin 14 has a mounting portion 15 which is press-fitted in holes 30 of circuit board 50 and fixed therein as discussed below.
  • Mounting portion 15 has at least two legs 15a and 15b which have resilient characteristics defining a compliant section. A lateral distance between outside walls of legs 15a, 15b is designed to be greater than the diameter of the holes 30 of circuit board 50.
  • Male contact section 18 is integral with base 11 end extends upward from an upper end surface of wall portion 13 of base 11.
  • Male contact section 18 is comprised of a vertical portion 19 extending from wall portion 13 of base 11, an inclined portion 17 extending from vertical portion 19 and an essentially triangular tip portion 20 extending from inclined portion 17.
  • Vertical portion 19 extends in the same plane as wall portion 13.
  • Vertical portion 19 has radiussed side edges 19a, as best shown in Figure 3.
  • Tip portion 20 extends from inclined portion 17 such that tip portion 20 is parallel to the plane encompassing vertical portion 19.
  • a projection 55 is provided on tip portion 20 to allow a female contact section 35 to be easily inserted onto male section 18, as discussed below.
  • Tongue 21 is stamped from contact section 18 and extends from a central area of vertical portion 19 to projection 55 on tip portion 20.
  • Tongue 21 has a fixed end portion 54 attached to vertical portion 19, a center portion 53 attached to portion 54 and a free end portion 52 attached to portion 53.
  • Tongue 21 is bent such that central portion 53 is essentially parallel to vertical portion 19.
  • Fixed end portion 54 and free end portion 52 are inclined from central portion 54toward vertical portion 19.
  • a contact surface 21 a is provided on central portion 53 and is arcuate to allow female contact section 35 to be easily inserted onto male section 18, as will be discussed.
  • Free end portion 52 is provided with laterally projected portions 23 which extend from each side of free end portion 52.
  • Lances 24 are provided on either side of vertical portion 19. Lances 24 are attached at one end to vertical section 19, proximate fixed end portion 54 of tongue 21. Opposite ends of lances 24 are curved inward toward wall portion 12 of base 11. A lance 25 is stamped from a section of vertical portion 19 and a section of base 11. Lance 25 is in alignment with tongue 21. A free end of lance 25 extends outward in the opposite direction from that of lances 24.
  • Terminal 10 is positioned on circuit board 50 such that holes 30 of circuit board 50 are aligned with contact pins 14. Terminal 10 is then forced downward onto circuit board 50 causing contact pins 14 to engage holes 30. As contact pins 14 are inserted legs 15a, 15b of pins 14 engage wall surfaces of holes 30 causing legs 15a, 15b to be forced inwardly thereby frictionally engaging the wall surfaces of holes 30. This results in terminal 10 being frictionally secured in place on circuit board 50.
  • cylindrical female contact section 35 of the power supply is brought into engagement with male contact section 18 of terminal 10.
  • Contact section 35 is inserted over tip portion 20 of section 18 such that projection 55 guides female contact section 35 over free end portion 52 of tongue 21.
  • an inner wall of section 35 is slid along arcuate contact surface 21 a of tongue 21 and radiussed edges 19a of vertical portion 19. This causes tongue 21 to be biased toward vertical portion 19.
  • Projected portions 23 of portion 52 engage inclined portion 17 preventing tongue 21 from further inward movement.
  • Radiussed edges 19a and contact surface 21 a enable section 35 to be more easily inserted and also provide an increased contact surface between section 18 and section 35.
  • each terminal 10 of the present invention is provided with lances 24 for retaining terminal 10 in housing 40.
  • base 11 in order to align contact pins 14 of terminals 10 with holes 30 of circuit board 50 and maintain the required spacing of terminals 10 in housing 40, base 11 must be oriented in different directions as shown by terminals 10 and 10' of Figure 4.
  • Housing 40 may have three terminals 10 therein, as shown in Figure 4, or any other number of terminals 10 as is required.
  • Eachter- minal 10 is inserted into housing 40 from its lower end into a substantially T-shaped lower bottom opening 31 as shown in Figure 5. As insertion occurs, tongue 21 passes through portion 31 a while the rest of section 18 passes through portion 31 b having a larger width than portion 31 a.
  • Lances 24 engage side walls 33 of portion 31 b as insertion occurs, forcing lances 24 to assume a stressed position. Upon full insertion, lances 24 move beyond side walls 33 of portion 31 b allowing lances 24 to return to their original unstressed position in engagement with bottom wall 32. Simultaneously, the upper surface of base 11 engages a recess 60 of a bottom section of housing 40. Lances 25, however, remains in contact with side wall 33a. This positioning of lances 24 and base 11 with respect to bottom wall 32 prevents vertical movement of terminals 10 relative to housing 40.
  • a resilient support projection 34 is provided to each opening 31 of bottom wall 32. Each projection 34 engages a back surface of vertical portion 19 of terminal 10. Projections 34 and lances 25 cooperate to prevent horizontal movement of terminals 10 in housing 40.
  • FIGS. 6 and 7 show alternative embodiments depicting a male contact 18a and a female contact 18b to be combined with a female contact 35a and a male contact 35b, respectively.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (11)

1. Elektrischer Anschluß, der dazu dient, einen Stromversorgungskontakt (35) mit einer Schaltungsplatine (50) elektrisch zu verbinden, und der einen Körperabschnitt (11) mit Montagestiften (14), die sich Wänden (12, 13) des Körperabschnitts (11) erstrecken, und einen Kontaktteil (18) umfaßt, wobei die Montagestifte (14) nachgebende Abschnitte (15a, 15b) aufweisen, die mit Löchern (30) der Schaltungsplatine (50) in Reibeingriff treten, und wobei der Kontaktteil (18) die Stromzuführung (35) mit dem Anschluß verbindet, so daß hierdurch eine feste elektrische Verbindung bewirkt wird, dadurch gekennzeichnet, daß der Körperabschnitt (11) eine rechtwinkelig-ringförmige Konfiguration besitzt, bei der sich die Montagestifte (14) von den unteren Kanten der Wände (12, 13) erstrecken, und sich der Kontaktteil (18) von einer oberen Kante der Wand (13) auf der anderen Seite der Montagestifte (14) erstreckt.
2. Elektrischer Anschluß nach Anspruch 1, dadurch gekennzeichnet, daß der Anschluß aus einem Metallblech gestanzt und geformt wird, das wünschenswerte Leit- und Federeigenschaften besitzt.
3. Elektrischer Anschluß nach Anspruch 2, dadurch gekennzeichnet, daß der Kontaktteil (18) einen senkrechten Abschnitt (19) aufweist, der eine sich von ihm aus erstreckende elastische Zunge (21 ) besitzt, wobei der senkrechte Abschnitt (19) und die Zunge (21) zusammenwirken, um in eleastischer Weise mit einem zylindrischen Stromversorgungskontakt (35) in Eingriff zu treten.
4. Elektrischer Anschluß nach Anspruch 3, dadurch gekennzeichnet, daß der senkrechte Abschnitt (19) gerundete Kanten (19a) besitzt und daß die Zunge (21) eine gebogene Kontaktoberfläche (21 a) aufweist, die sowohl ein einfacheres Aufschieben des Kontaktes (35) auf den Kontaktteil (18) ermöglicht als auch eine vergrößerte Kontaktfläche zwischen dem Kontaktteil (18) und dem Stromversorgungsabschnitt (35) liefert.
5. Elektrischer Anschluß nach Anspruch 4, gekennzeichnet, daß die Zunge (21) so gebogen ist, daß die gebogene Kontaktoberfläche (21a) im wesentlichen parallel zum senkrechten Abschnitt (19) ist.
6. Elektrischer Anschluß nach Anspruch 5, dadurch gekennzeichnet, daß ein freies Ende der Zunge (21) Vorsprünge (23) aufweist, die sich von ihr aus senkrecht erstrecken, um mit dem senkrechten Abschnitt (19) in Eingriff zu treten, wodurch verhindert wird, daß die Zunge (21) aufgrund einer Überlastung der Zunge (21) eine bleibende Verbiegung erfährt.
7. Elektrischer Anschluß nach Anspruch 6, dadurch gekennzeichnet, daß ein Vorsprung (55) am senkrechten Abschnitt (19) in der Nähe des freien Endes der Zunge (21) vorgesehen ist, wobei der Vorsprung (55) den Kontakt zu einer äußeren Oberfläche der Zunge (21) führt, wodurch ein ordnungsgemäßes Aufschieben des Kontaktes (35) sichergestellt wird.
8. Elektrischer Anschluß nach Anspruch 1, dadurch gekennzeichnet, daß obere Lanzen (4) in der Nähe des Kontaktteils (18) vorgesehen sind, die es ermöglichen, Anschlüsse (10) in einem dielektrischen Gehäuse (40) anzuordnen, das eine Bodenwand (32) besitzt, wobei die Bodenwand (32) eine Öffnung (31) aufweist, die es ermöglicht, die Anschlüsse so einzusetzen, daß die Lanzen (24) in elastischer Weise mit der Bodenwand (32) in Eingriff treten, während die Körperabschnitte (11) mit Ausnehmungen (60) eines Bodenabschnittes des Gehäuses (40) in Eingriff treten, wodurch eine senkrechte Bewegung der Anschlüsse verhindert wird.
9. Elektrischer Anschluß nach Anspruch 8, dadurch gekennzeichnet, daß eine untere Lanze (25) an den Anschlüssen unterhalb der oberen Lanzen (24) vorgeschoben ist, wobei die Lanze (25) mit einer Seitenwand (33a) der Öffnung (31) in Berührung tritt, während ein Vorsprung (34) des Gehäuses (40) mit dem Kontaktteil (18) in elastischer Weise in Eingriff tritt, und wobei das Zusammenwirken der Lanze (25) und des Vorsprungs (34) eine seitliche Bewegung des Anschlusses verhindert.
10. Elektrischer Anschluß nach Anspruch 2, dadurch gekennzeichnet, daß der Kontaktteil (18) die Form eines flachen streifenförmigen eindringenden Kontaktteils (18a) zur Aufnahme eines aufnehmenden Abschnittes (35a) aufweist.
11. Elektrischer Anschluß nach Anspruch 2, dadurch gekennzeichnet, daß der Kontaktteil (18) die Form eines aufnehmenden Kontaktteils (18b) zur Aufnahme eines flachen streifenförmigen eindringenden Abschnittes (35b) besitzt.
EP86903814A 1985-05-24 1986-05-14 Leitungsverbindung für gedruckte schaltungen Expired EP0224559B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP60110632A JPS61271765A (ja) 1985-05-24 1985-05-24 電気コネクタ
JP110632/85 1985-05-24
JP8399985U JPH02862Y2 (de) 1985-06-05 1985-06-05
JP83999/85 1985-06-05

Publications (2)

Publication Number Publication Date
EP0224559A1 EP0224559A1 (de) 1987-06-10
EP0224559B1 true EP0224559B1 (de) 1989-09-27

Family

ID=26425032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86903814A Expired EP0224559B1 (de) 1985-05-24 1986-05-14 Leitungsverbindung für gedruckte schaltungen

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EP (1) EP0224559B1 (de)
DE (1) DE3665964D1 (de)
WO (1) WO1986007201A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4586410A1 (de) * 2024-01-12 2025-07-16 Honeywell International Inc. Elektrische anschlussklemme für ein elektronisches gerät

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2763751B1 (fr) * 1997-05-26 2002-11-29 Proner Comatel Sa Contact electrique demontable, a pression
DE10223382A1 (de) * 2002-05-25 2003-12-04 Conti Temic Microelectronic Einpresskontakt
DE102008064590B3 (de) * 2008-12-19 2010-07-15 Tyco Electronics Amp Gmbh Kontaktanordnung zur Verbindung mit einer polygonalen Buchse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2028631A5 (de) * 1969-01-08 1970-10-09 Comp Generale Electricite
US4186982A (en) * 1973-08-01 1980-02-05 Amp Incorporated Contact with split portion for engagement with substrate
US4219251A (en) * 1978-12-08 1980-08-26 Litton Systems, Inc. Power connector
JPS57123669A (en) * 1980-12-15 1982-08-02 Amp Inc Power distribution block

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4586410A1 (de) * 2024-01-12 2025-07-16 Honeywell International Inc. Elektrische anschlussklemme für ein elektronisches gerät

Also Published As

Publication number Publication date
DE3665964D1 (en) 1989-11-02
EP0224559A1 (de) 1987-06-10
WO1986007201A1 (en) 1986-12-04

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