EP0065357A1 - Low insertion force connector - Google Patents
Low insertion force connector Download PDFInfo
- Publication number
- EP0065357A1 EP0065357A1 EP82302036A EP82302036A EP0065357A1 EP 0065357 A1 EP0065357 A1 EP 0065357A1 EP 82302036 A EP82302036 A EP 82302036A EP 82302036 A EP82302036 A EP 82302036A EP 0065357 A1 EP0065357 A1 EP 0065357A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- passageway
- housing part
- housing
- cavity
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/193—Means for increasing contact pressure at the end of engagement of coupling part, e.g. zero insertion force or no friction
Definitions
- This invention relates to a connector adapted for low insertion forces so that a conductor may be connected to or released from the connector with minimal risk of damage.
- a connector adapted for low insertion or withdrawal forces on a conductor comprises a contact mounted in an insulating housing having a passageway for receipt of the conductor, the contact having a spring finger presenting a contact portion projecting into the passageway and, forwardly of the contact portion, a forward portion extending in forwardly and outwardly inclined manner from the passageway into a cavity at a side thereof is characterised by a housing part bordering the side of the passageway and moveably mounted on the housing adjacent the forward end of the passageway, the housing part being moveable into the cavity to engage the forward contact portion at a surface of the housing part facing away from the passageway to flex the spring finger and move the contact portion outwardly of. the passageway.
- the housing part is integrally formed with the housing at a hinge having an axis extending normally transversely of the passageway and spaced therefrom to allow hinge movement of the housing part into the cavity.
- the housing part is suitably secured in the cavity by interengaging resilient latch means which may comprise projections and complementary recesses, the recesses being elongated lengthwise of the passageway to accommodate the desired movement.
- resilient latch means which may comprise projections and complementary recesses, the recesses being elongated lengthwise of the passageway to accommodate the desired movement.
- the contact is suitably formed from sheet metal and comprises on a side of the passageway opposite the spring finger a tongue for receipt of the conductor between the tongue and the contact portion of the spring finger.
- the connector of Figures 1 and 2 comprises an insulating housing 1 formed with a transverse slot 2 defining a passageway for the receipt of flat cable, not shown, having a plurality of parallel conductors.
- a plurality of contacts 3 are mounted in the housing 1, each contact 3 being mounted in a respective cavity 4 communicating with the slot 2 and extending transversely from the slot at one side as seen in Figure 2.
- the contacts 3, Figure 3 are stamped and formed from sheet metal and each comprises a post portion 5 projecting through an aperture in the housing for connection to a printed circuit board.
- each contact has a tab portion 6 bordering the slot 2 on a side opposite that from which the cavities extend and a spring finger 7 on the opposite side.
- the spring finger extends from the post portion 5 transversely across the floor of the associated cavity as a base portion, then forwardly in parallel spaced relation to the tab portion to a forward bight portion 8 at which it is bent rearwardly to extend in inclined manner towards the tab portion 6 and the slot 2 where it is formed with a further bight 9 defining a contact portion projecting into the slot 2 and convex towards the tab portion 6.
- the post portion is suitably formed from a slot 51 extending across the base portion and forwardly in the forwardly extending portion but terminating short of the bight 8.
- the slot 2 On the side opposite the spring finger 7 the slot 2, forwardly of the contact portion 9, is suitably inclined forwardly and outwardly to facilitate entry of a conductor into the slot, and the tab portions 6 are bent to conform to the slot side.
- the cavities 4 adjacent the bights 8 of the contacts communicate with a common cavity.lO extending from the slot 2, and open at the conductor entry side of the housing 1.
- the housing 1 is integrally formed with a flap member 11 secured to the housing by a hinge portion 12 and adapted to close the open side of the cavity 10.
- the flap member 11 is suitably moulded in the broken-line position, but, after insertion of the contacts 3 into the housing, is hingedly moved into the full-line position.
- the flap member 11, as seen in Figure 2 is of generally L-shaped section, having a first limb 13 adapted to form a side of the slot 2 forwards of the contact portion 8.
- a cam surface 15 extends between the limbs 13, 14 in inclined manner to engage the spring fingers 7 adjacent the bights 8 before the hinge 12 is fully closed.
- the flap member 11 is formed with spigot-like projections 16 engageable in recesses 17 formed internally of end wall portions 18 of the housing.
- the recesses 17 are elongated in a direction parallel to the slot and the spigots 16 are suitably engageable in the recesses 17 in a snap fit by resilient outward flexure of the end wall portions 18 to retain the flap member 11 in the closed, full-line position against resilience of the hinge 12.
- the spigots 16 are suitably chamfered at 19.
- the housing 1 is so formed with flanges 20 as to enable mounting on a printed circuit board with the slot 2 inclined relative to the board and the posts 5 at 45 degrees.
- the flap member 11 In use, to connect a flat cable, not shown, having exposed conductive foils, the flap member 11 is depressed, manually, to flex the spring fingers 7 and displace the contact portions 9 away from the tab portions 6, and out of the slot 2, to admit the cable end with minimal insertion resistance. Inclined stop surfaces 21 on the flap are suitably arranged to engage complementary abutments 22 within the housing to limit closure of the flap member 11 and protect against overstress of the spring fingers 7. The flap member 11 is then released to resile under the influence of hinge 12 and of the spring fingers 7, the contact portions 9 being urged against conductive portions of the cable.
- the particular connector disclosed is intended for use with flat conductors but is usable with discrete wires, in which case the tab portion 6 would be suitably serrated on its inner face.
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Description
- This invention relates to a connector adapted for low insertion forces so that a conductor may be connected to or released from the connector with minimal risk of damage.
- It is known to provide so called zero or low insertion force connectors having this facility, but generally these comprise complex structures having several relatively moveable parts including cams or wedges and which are intrinisically expensive to produce.
- It is an object of the invention to provide a connector of this kind which is of simple structure and economic to produce.
- According to the invention, a connector adapted for low insertion or withdrawal forces on a conductor comprises a contact mounted in an insulating housing having a passageway for receipt of the conductor, the contact having a spring finger presenting a contact portion projecting into the passageway and, forwardly of the contact portion, a forward portion extending in forwardly and outwardly inclined manner from the passageway into a cavity at a side thereof is characterised by a housing part bordering the side of the passageway and moveably mounted on the housing adjacent the forward end of the passageway, the housing part being moveable into the cavity to engage the forward contact portion at a surface of the housing part facing away from the passageway to flex the spring finger and move the contact portion outwardly of. the passageway.
- Suitably the housing part is integrally formed with the housing at a hinge having an axis extending normally transversely of the passageway and spaced therefrom to allow hinge movement of the housing part into the cavity.
- The housing part is suitably secured in the cavity by interengaging resilient latch means which may comprise projections and complementary recesses, the recesses being elongated lengthwise of the passageway to accommodate the desired movement.
- The contact is suitably formed from sheet metal and comprises on a side of the passageway opposite the spring finger a tongue for receipt of the conductor between the tongue and the contact portion of the spring finger.
- The invention will now be described by way of example with reference to the accompanying partly diagrammatic drawings in which:-
- Figure 1 is a side elevation of a connector;
- Figure 2 is a section taken on the line 2-2 of Figure 1, and
- Figure 3 is a perspective view of a contact of the connector.
- The connector of Figures 1 and 2 comprises an insulating housing 1 formed with a
transverse slot 2 defining a passageway for the receipt of flat cable, not shown, having a plurality of parallel conductors. A plurality ofcontacts 3 are mounted in the housing 1, eachcontact 3 being mounted in arespective cavity 4 communicating with theslot 2 and extending transversely from the slot at one side as seen in Figure 2. - The
contacts 3, Figure 3, are stamped and formed from sheet metal and each comprises apost portion 5 projecting through an aperture in the housing for connection to a printed circuit board. Within thecavities 4, each contact has atab portion 6 bordering theslot 2 on a side opposite that from which the cavities extend and aspring finger 7 on the opposite side. The spring finger extends from thepost portion 5 transversely across the floor of the associated cavity as a base portion, then forwardly in parallel spaced relation to the tab portion to a forward bight portion 8 at which it is bent rearwardly to extend in inclined manner towards thetab portion 6 and theslot 2 where it is formed with afurther bight 9 defining a contact portion projecting into theslot 2 and convex towards thetab portion 6. The post portion is suitably formed from aslot 51 extending across the base portion and forwardly in the forwardly extending portion but terminating short of the bight 8. - On the side opposite the
spring finger 7 theslot 2, forwardly of thecontact portion 9, is suitably inclined forwardly and outwardly to facilitate entry of a conductor into the slot, and thetab portions 6 are bent to conform to the slot side. - The
cavities 4 adjacent the bights 8 of the contacts communicate with a common cavity.lO extending from theslot 2, and open at the conductor entry side of the housing 1. The housing 1 is integrally formed with a flap member 11 secured to the housing by a hinge portion 12 and adapted to close the open side of thecavity 10. The flap member 11 is suitably moulded in the broken-line position, but, after insertion of thecontacts 3 into the housing, is hingedly moved into the full-line position. The flap member 11, as seen in Figure 2, is of generally L-shaped section, having afirst limb 13 adapted to form a side of theslot 2 forwards of the contact portion 8. - A
cam surface 15 extends between thelimbs spring fingers 7 adjacent the bights 8 before the hinge 12 is fully closed. At opposite ends the flap member 11 is formed with spigot-like projections 16 engageable inrecesses 17 formed internally ofend wall portions 18 of the housing. Therecesses 17 are elongated in a direction parallel to the slot and thespigots 16 are suitably engageable in therecesses 17 in a snap fit by resilient outward flexure of theend wall portions 18 to retain the flap member 11 in the closed, full-line position against resilience of the hinge 12.. To this end thespigots 16 are suitably chamfered at 19. - For convenience of cable lead out either parallel to or normally from a printed circuit board, the housing 1 is so formed with
flanges 20 as to enable mounting on a printed circuit board with theslot 2 inclined relative to the board and theposts 5 at 45 degrees. - In use, to connect a flat cable, not shown, having exposed conductive foils, the flap member 11 is depressed, manually, to flex the
spring fingers 7 and displace thecontact portions 9 away from thetab portions 6, and out of theslot 2, to admit the cable end with minimal insertion resistance. Inclinedstop surfaces 21 on the flap are suitably arranged to engagecomplementary abutments 22 within the housing to limit closure of the flap member 11 and protect against overstress of thespring fingers 7. The flap member 11 is then released to resile under the influence of hinge 12 and of thespring fingers 7, thecontact portions 9 being urged against conductive portions of the cable. - The reverse procedure may be followed for release of the cable from the connector with minmal withdrawal forces.
- It will be understood that damage to the cable during insertion and withdrawal is avoided by the simple structural features of the connector assembly.
- The particular connector disclosed is intended for use with flat conductors but is usable with discrete wires, in which case the
tab portion 6 would be suitably serrated on its inner face.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82302036T ATE14811T1 (en) | 1981-05-09 | 1982-04-21 | CONNECTORS WITH A WEAK INSERT. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8114235 | 1981-05-09 | ||
GB8114235 | 1981-05-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0065357A1 true EP0065357A1 (en) | 1982-11-24 |
EP0065357B1 EP0065357B1 (en) | 1985-08-07 |
Family
ID=10521691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82302036A Expired EP0065357B1 (en) | 1981-05-09 | 1982-04-21 | Low insertion force connector |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0065357B1 (en) |
JP (1) | JPS57194469A (en) |
AR (1) | AR228310A1 (en) |
AT (1) | ATE14811T1 (en) |
AU (1) | AU549633B2 (en) |
BR (1) | BR8202510A (en) |
CA (1) | CA1183918A (en) |
DE (1) | DE3265193D1 (en) |
ES (1) | ES272783Y (en) |
MX (1) | MX152065A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3514098A1 (en) * | 1985-04-16 | 1986-10-23 | WAGO Verwaltungsgesellschaft mbH, 4950 Minden | Method for producing and installing electrical terminals, and a terminal of this type |
EP0398473A1 (en) * | 1989-03-17 | 1990-11-22 | E.I. Du Pont De Nemours And Company | Separable, surface-mating electrical connector and assembly |
DE4023072A1 (en) * | 1990-07-20 | 1992-01-23 | Lumberg Karl Gmbh & Co | ELECTRIC CONNECTOR |
DE9414939U1 (en) * | 1994-09-14 | 1995-02-09 | Siemens AG, 80333 München | Terminal block with screwless terminals |
DE19823519C1 (en) * | 1998-05-26 | 2000-01-05 | Framatome Connectors Int | Clamp connection with a U-shaped spring |
DE19855050A1 (en) * | 1998-11-28 | 2000-05-31 | Wuerth Adolf Gmbh & Co Kg | Plug-in terminal |
DE10153170C1 (en) * | 2001-10-27 | 2003-02-20 | Phoenix Contact Gmbh & Co | Electrical spring clamp for connecting electrical conductor with printed circuit board has bearing arm provided with integral solder pins for direct mounting on latter |
DE102004045026B3 (en) * | 2004-09-15 | 2006-02-16 | Phoenix Contact Gmbh & Co. Kg | Electrical connecting clamp for mobile and fixed functions, with clamping spring and metal part in insulating housing with inserting aperture for conductor to be inserted |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4652607B2 (en) * | 2001-04-27 | 2011-03-16 | パナソニック電工株式会社 | Connection terminal block and quick connection terminal |
DE102005048972B4 (en) * | 2005-10-13 | 2010-08-12 | Phoenix Contact Gmbh & Co. Kg | Spring terminal with clamping spring and current bar |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3980375A (en) * | 1975-11-10 | 1976-09-14 | Sheldahl, Inc. | Connector for flexible circuitry |
FR2310060A1 (en) * | 1975-04-28 | 1976-11-26 | Molex Inc | CONNECTOR DEVICE FOR FLEXIBLE CIRCUITS |
-
1982
- 1982-04-19 AU AU82803/82A patent/AU549633B2/en not_active Ceased
- 1982-04-21 AT AT82302036T patent/ATE14811T1/en not_active IP Right Cessation
- 1982-04-21 EP EP82302036A patent/EP0065357B1/en not_active Expired
- 1982-04-21 DE DE8282302036T patent/DE3265193D1/en not_active Expired
- 1982-04-23 CA CA000401548A patent/CA1183918A/en not_active Expired
- 1982-04-28 AR AR289247A patent/AR228310A1/en active
- 1982-04-28 ES ES1982272783U patent/ES272783Y/en not_active Expired
- 1982-04-30 BR BR8202510A patent/BR8202510A/en unknown
- 1982-05-07 MX MX192597A patent/MX152065A/en unknown
- 1982-05-10 JP JP57078069A patent/JPS57194469A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2310060A1 (en) * | 1975-04-28 | 1976-11-26 | Molex Inc | CONNECTOR DEVICE FOR FLEXIBLE CIRCUITS |
US3980375A (en) * | 1975-11-10 | 1976-09-14 | Sheldahl, Inc. | Connector for flexible circuitry |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3514098A1 (en) * | 1985-04-16 | 1986-10-23 | WAGO Verwaltungsgesellschaft mbH, 4950 Minden | Method for producing and installing electrical terminals, and a terminal of this type |
EP0398473A1 (en) * | 1989-03-17 | 1990-11-22 | E.I. Du Pont De Nemours And Company | Separable, surface-mating electrical connector and assembly |
DE4023072A1 (en) * | 1990-07-20 | 1992-01-23 | Lumberg Karl Gmbh & Co | ELECTRIC CONNECTOR |
DE9414939U1 (en) * | 1994-09-14 | 1995-02-09 | Siemens AG, 80333 München | Terminal block with screwless terminals |
DE19823519C1 (en) * | 1998-05-26 | 2000-01-05 | Framatome Connectors Int | Clamp connection with a U-shaped spring |
DE19855050A1 (en) * | 1998-11-28 | 2000-05-31 | Wuerth Adolf Gmbh & Co Kg | Plug-in terminal |
DE10153170C1 (en) * | 2001-10-27 | 2003-02-20 | Phoenix Contact Gmbh & Co | Electrical spring clamp for connecting electrical conductor with printed circuit board has bearing arm provided with integral solder pins for direct mounting on latter |
DE102004045026B3 (en) * | 2004-09-15 | 2006-02-16 | Phoenix Contact Gmbh & Co. Kg | Electrical connecting clamp for mobile and fixed functions, with clamping spring and metal part in insulating housing with inserting aperture for conductor to be inserted |
Also Published As
Publication number | Publication date |
---|---|
MX152065A (en) | 1985-05-27 |
AR228310A1 (en) | 1983-02-15 |
ATE14811T1 (en) | 1985-08-15 |
JPS57194469A (en) | 1982-11-30 |
ES272783Y (en) | 1984-04-16 |
BR8202510A (en) | 1983-04-12 |
EP0065357B1 (en) | 1985-08-07 |
ES272783U (en) | 1983-11-01 |
AU549633B2 (en) | 1986-02-06 |
DE3265193D1 (en) | 1985-09-12 |
AU8280382A (en) | 1982-11-18 |
CA1183918A (en) | 1985-03-12 |
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