EP1083634A2 - Connecteurs pour circuit souple - Google Patents
Connecteurs pour circuit souple Download PDFInfo
- Publication number
- EP1083634A2 EP1083634A2 EP00118229A EP00118229A EP1083634A2 EP 1083634 A2 EP1083634 A2 EP 1083634A2 EP 00118229 A EP00118229 A EP 00118229A EP 00118229 A EP00118229 A EP 00118229A EP 1083634 A2 EP1083634 A2 EP 1083634A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- flexible circuit
- contacts
- wall
- cover
- housing
- 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- Withdrawn
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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
- 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
- H01R12/82—Coupling devices connected with low or zero insertion force
- H01R12/85—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures
- H01R12/89—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures acting manually by moving connector housing parts linearly, e.g. slider
-
- 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
- H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/771—Details
- H01R12/772—Strain relieving means
Definitions
- the present invention relates to a connection device for flexible circuits and more particularly a connector for flexible circuit.
- Flexible circuits are generally consisting of a first sheet of flexible insulating material on which are arranged conductive tracks for example in copper, these tracks being themselves covered either by a second sheet of insulating material either by an insulating varnish. These circuits are widely used in industry electrical and several connection methods exist to connect them to electrical contacts or electronic components.
- Document US 4,749,368 relates to a device for connection of a component to one or more tracks of a flexible circuit by staples fitted with crowns piercing teeth driven into the flexible circuit and then crimped onto the flexible circuit.
- Connecting flexible circuits to connectors requires special attention at the level of connection of flexible circuit and contacts as well as connector output level. It is notably necessary to protect the flexible circuit interface and of the connector against possible tearing.
- the invention proposes to improve this interface and in particular to make the flexible circuit more resistant to lateral traction and / or vibration forces at level of its connection to the contacts and at the connector outlet as well as avoiding any bending or tearing perpendicular to the runways risking cut the conductive tracks.
- the present invention relates in particular to a connector for flexible circuit comprising a housing provided with at least one row of longitudinal cells of receiving contacts, an operable cover element between a pre-insertion position of the contacts and a contact locking position, cover element comprising at least one support element putting the circuit flexible in constraint.
- the support element may be a contact pin, this pin coming into the locking position press the connection part of the contact with the flexible circuit.
- the contacts can have two aligned crimping rings, the pawns coming to rest between these crowns.
- the cells are, in the part of the housing intended for receive the flexible circuit, separated by ribs such as when the contacts are in position full insertion, the flexible circuit comes to bear on these ribs under the action of the hood pins coming from stress the connection parts of contacts with the flexible circuit.
- the cover element can be separated from the housing and maneuverable in a direction perpendicular to the direction of insertion of the contacts.
- the housing comprises a notch, in at least one of its lateral faces at level of its rear part for receiving contacts and of the flexible circuit, this notch allowing a overflow of the flexible circuit, while the element support stressing the flexible circuit, includes at least one side wall of the cover, this wall lateral deforming the flexible circuit at its area inserted in the housing when the hood is in position locking contacts.
- Figure 1 shows a connector for flexible circuit of the type comprising a first insulating sheet, tracks (100) one of which is shown in dotted lines and comprising a second insulating sheet covering the tracks.
- To this flexible circuit are connected by a crimping operation of the contacts (6). These contacts are inserted into cells made in a housing which is visible in Figure 3. In known manner, these cells have an insertion end of the contacts and one end with an opening connection of contacts to additional contacts.
- Figure 8 shows a section of such a cell equipped of his contact 6.
- the connector further comprises a cover element (5) or cover, this cover element being operable between two positions called insertion position of contacts and contact locking position.
- the cover is maneuverable vertically i.e. in one direction perpendicular to the horizontal plane formed by the alveoli.
- the contact insertion position is achieved by inserting the cover on the housing up to latching of the wall of one of the windows (60) on the side faces of the cover between a lug (61) of hood retainer and lug (62) on the side faces of the case.
- the contact locking position is obtained by pushing the hood until the window wall (60) snap behind the lugs (62) as visible in figure 5.
- the invention can also be applied to a connector for which the cover is an element of cover hinged to the housing, this cover element closing the rear part of the case as described in the document US 4082402. In this case, only a lug of final locking is required on the side faces of the case.
- the contact (6) visible in Figure 8 for connection flexible circuit is provided with a termination (20) of connection to a complementary contact, of a part elongated central unit (21) forming a floor and a part insulation piercing connection (22).
- Termination connection can in particular be, as shown, of female type and consisting of a cage provided with one or several elastic contact blades.
- the insulating piercing part (22), of the contact (6) is, in the example shown in FIG. 7, of the type comprising at least one crown of teeth (23) intended to pierce the flexible circuit and be crimped into the circuit flexible to make contact with a track 100 of the flexible circuit 10.
- Other configurations such as piercing blades are possible without leaving the framework of the invention, such configurations being well known in the field of circuit connection flexible.
- Figure 1 gives a general view a connector for a flexible circuit according to the invention comprising contacts (6), a housing (1), provided of cells (2) for receiving the contacts (6).
- the contacts are in the pre-insertion position. This pre-insertion position allows delivery of connectors fitted with their contacts and allows, in a suitable tool, position the flexible circuit and crimping in one operation all the elements of drilling and crimping (23, 23 ') on the tracks (100).
- FIG. 2 shows the connector with the contacts inserted, the cover being always in the pre-insertion position, and Figures 5 and 8, the connector with the contacts inserted, cover (5) being in position locking.
- the cover (5) can be operated in a direction perpendicular to the cells between a position pre-insertion of the contacts and an insertion position complete and locking contacts.
- the invention applies in the same way to a configuration of connector for which the cover is an element connected to the case by a hinge.
- the cover When the contacts are fully inserted, the cover is pushed vertically into the locked position.
- the the hood is locked by snapping on the window (60) on a second lug (62).
- the pins (31) press on the connection part (22) of the contact with the circuit flexible.
- This support constrains and flexes the crimping part which in its natural position is raised relative to the bottom wall of the housing.
- These pins then constitute the support element putting the flexible circuit under stress. So the pawns constitute a first means of constraining the connection area by crimping allowing better holding of this vibration connection area.
- the wall lower (35) of the housing (1) has ribs (40) separating the cells (2). These ribs are located under the part of the flexible circuit inserted in the housing.
- the bending of the crimping part (22) brings the flexible circuit in contact with the framing ribs the contacts and, by adjusting the height of the ribs by relative to the height of the pins (31) it is possible to constrain the flexible circuit and give it a profile wavy as visible in Figure 9 under this support effect staggered opposites.
- This constraint significantly stiffens the flexible circuit connection area (10) making it more able to withstand vibrations in particular encountered in automotive applications and making it more resistant to possible bending forces applied at the connector outlet.
- Pawns and ribs thus form support means and of counter support.
- the contact may include a stop (30) for example constituted by a folded flap of the termination (20) or by the termination cage itself, the cover comprising a retaining finger (4) complementary to the contact cooperating with the stop (30) to lock the contact (6) in the cell, the cover being in the closed position.
- Fingers (4) are visible in FIG. 4, these fingers being able to pass through holes in the housing or, as shown here, a notch (3) on the upper face of the housing (1). This constitution also makes it possible to prohibit the closing and locking the hood when the contacts are not fully inserted, fingers (4) abutting in this case against the upper part of the termination (20).
- the cover element may include in addition to a rear wall (16) closing the rear of the housing.
- the cover element may have side walls, the rear (11) constitutes an area intended to deform the flexible circuit.
- the wall (11) ends above the plane corresponding to the insertion of the flexible circuit in the housing.
- the case for its part includes elements of rear side walls (13, 14) separated by a notch (8), this notch 8 allowing a overflow of the flexible circuit, the flexible circuit being thus deformed on at least one of its corners inserted in the housing by a shearing effect between the wall (13) of the housing and the wall (11) of the cover.
- These side walls (11) also form a support element putting the flexible circuit under stress, the wall (13) of the case forming against support element.
- This deformation of at least one side of the end of the flexible circuit stiffens the flexible circuit connection and of the case and stiffens the flexible circuit locally by stress and warping making it more resistant to possible pull-out efforts.
- the edge of the wall (11) of the element of cover has a profile inclined relative to the axis of the contacts and flexible circuit.
- This inclination that we see in Figure 5 is such that the stress applied to the flexible circuit is maximum at the end of the flexible circuit and decreases in the direction of the housing exit which amounts to reducing the curvature of the flexible circuit by out of the housing and increase it at the end of the flexible circuit.
- the flexible circuit thus takes a profile warped with maximum curvature at the end of the flexible circuit.
- the edge of the lower half-wall (13) of the housing may have an inclination slope opposite the slope of the edge of the wall of the element cover so as to reduce the stress on the circuit flexible at the outlet of the housing.
- the upper half-wall may overflow laterally with respect to the lower half-wall thus forming a bearing surface for the walls sides of the hood and thus give a precise width to the area in which the deformed part is housed of the flexible circuit.
- the invention is not limited to the example described on the figures and, as previously indicated, a configuration for which the cover consists of an element connected to the case by a hinge and maneuverable in rotation is possible while remaining within the framework of the invention.
Landscapes
- Multi-Conductor Connections (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Description
- En figure 1, une vue en perspective de côté d'un dispositif selon l'invention monté en position de pré-insertion des contact, circuit souple serti sur les contacts,
- en figure 2, une vue en perspective de côté d'un dispositif selon l'invention monté en position contacts insérés, circuit souple serti sur les contacts, et capot en position de réception des contacts,
- en figure 3, une vue en perspective du boítier isolant,
- en figure 4, une vue en perspective de dessous d'un capot selon l'invention,
- en figure 5, une vue en perspective de côté d'un dispositif selon l'invention monté en position contacts insérés, circuit souple serti sur les contacts, et capot en position de verrouillage des contacts,
- en figure 6, un détail en vue arrière du dispositif selon la figure 5,
- en figure 7, un détail en vue en perspective de l'arrière du dispositif,
- en figure 8, la vue de la figure 5 avec coupe au niveau d'un alvéole.
- en figure 9, une coupe partielle de l'arrière du connecteur au niveau des zones de raccordement du circuit souple avec les contacts, capot en position verrouillée
Claims (12)
- Connecteur pour circuit souple (10), comportant un boítier (1) muni d'au moins une rangée d'alvéoles (2) longitudinales de réception de contacts (6), un élément de capot (5) manoeuvrable entre une position de pré-insertion des contacts et une position de verrouillage des contacts, caractérisé en ce que l'élément de capot (5) comporte au moins un élément d'appui venant mettre le circuit souple en contrainte.
- Connecteur selon la revendication 1 caractérisé en ce que l'élément d'appui comporte au moins un pion (31) par contact, ce pion (31) venant dans la position de verrouillage appuyer sur la partie de connexion (22) du contact avec le circuit souple.
- Connecteur selon la revendication 2 caractérisé en ce que les contacts comportant deux couronnes de sertissage (23, 23') alignées, les pions (31) viennent s'appuyer entre ces couronnes.
- Connecteur selon l'une des revendication 2 ou 3 caractérisé en ce que les alvéoles (2) sont, dans la partie du boítier destinée à recevoir le circuit souple, séparées par des nervures (40) telles que lorsque les contacts sont en position d'insertion complète, le circuit souple vient en appui sur ces nervures sous l'action des pions (31) du capot.
- Connecteur selon la revendication 4 caractérisé en ce que les parties de connexion (22) des contacts avec le circuit souple fléchissent sous l'action des pions (31) dans un sens contraire à l'appui du circuit souple sur les nervures (40), le circuit souple prenant ainsi une conformation ondulée.
- Connecteur selon l'une quelconque des revendications précédentes caractérisé en ce que l'élément de capot et le boítier comportent des moyens complémentaires de retenue (60, 62) en position de verrouillage.
- Connecteur selon l'une quelconque des revendications précédentes caractérisé en ce que l'élément de capot comporte une paroi arrière (16) refermant l'arrière du boítier.
- Connecteur selon l'une quelconque des revendications précédentes caractérisé en ce que le contact comprend une butée (30) constituée par un volet rabattu de la terminaison (20), le capot comprenant un doigt 4 de retenue complémentaire du contact coopérant avec la butée (30) pour effectuer un verrouillage du contact (6) dans l'alvéole, le capot étant en position fermée.
- Connecteur selon l'une des revendications précédentes caractérisé en ce que le boítier comporte, dans au moins une de ses faces latérales (7), au niveau de sa partie arrière de réception des contacts et du circuit souple, une échancrure (8) permettant un débordement du circuit souple (10), et en ce que l'élément d'appui comporte au moins une paroi latérale (11) du capot destinée à déformer le circuit souple au niveau de sa zone insérée dans le boítier, lorsque l'élément de capot est en position de verrouillage des contacts.
- Connecteur selon la revendication 9 caractérisé en ce que l'échancrure (8) comporte un profil en V ouvert vers l'arrière.
- Connecteur pour circuit souple selon l'une des revendications 9 ou 10 caractérisé en ce que la paroi latérale (11) de l'élément de capot a une arête inclinée (12) de telle sorte que la déformation du circuit souple comporte un profil gauchi (15) dont la courbure soit maximale à l'extrémité du circuit souple inséré dans le boítier.
- Connecteur pour circuit souple selon l'une des revendications 9 à 11 caractérisé en ce que la paroi latérale du boítier au niveau de l'échancrure forme une demi-paroi supérieure (14) et une demi-paroi inférieure (13), la demi-paroi supérieure débordant latéralement par rapport à la demi-paroi inférieure formant ainsi une surface d'appui pour une paroi latérale de l'élément de capot.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9911323 | 1999-09-07 | ||
FR9911325A FR2798230B1 (fr) | 1999-09-07 | 1999-09-07 | Connecteur pour circuit souple |
FR9911325 | 1999-09-07 | ||
FR9911323A FR2798229B1 (fr) | 1999-09-07 | 1999-09-07 | Perfectionnement aux connecteurs pour circuit souple |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1083634A2 true EP1083634A2 (fr) | 2001-03-14 |
EP1083634A3 EP1083634A3 (fr) | 2002-03-27 |
Family
ID=26235104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00118229A Withdrawn EP1083634A3 (fr) | 1999-09-07 | 2000-09-01 | Connecteurs pour circuit souple |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1083634A3 (fr) |
FR (2) | FR2798230B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017080952A1 (fr) * | 2015-11-13 | 2017-05-18 | Eurofeedback | Piece a main pour dispositif ipl comportant un connecteur electrique a fente |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4749368A (en) * | 1986-04-03 | 1988-06-07 | E. I. Du Pont De Nemours And Company | Contact strip terminal |
EP0592101A1 (fr) * | 1992-10-07 | 1994-04-13 | The Whitaker Corporation | Connecteur électrique ayant des moyens de décharge de traction améliorés |
WO1998033246A1 (fr) * | 1997-01-29 | 1998-07-30 | Ut Automotive Dearborn, Inc. | Procede de connexion d'un cable plat flexible et d'un connecteur |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4341430A (en) * | 1980-11-05 | 1982-07-27 | Amp Incorporated | Flat cable connector |
JP3308809B2 (ja) * | 1996-04-16 | 2002-07-29 | 株式会社山武 | ケーブル分岐コネクタ |
US5893773A (en) * | 1997-05-30 | 1999-04-13 | The Whitaker Corporation | Electrical connector having a cover with pre-stage positioning |
-
1999
- 1999-09-07 FR FR9911325A patent/FR2798230B1/fr not_active Expired - Fee Related
- 1999-09-07 FR FR9911323A patent/FR2798229B1/fr not_active Expired - Fee Related
-
2000
- 2000-09-01 EP EP00118229A patent/EP1083634A3/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4749368A (en) * | 1986-04-03 | 1988-06-07 | E. I. Du Pont De Nemours And Company | Contact strip terminal |
EP0592101A1 (fr) * | 1992-10-07 | 1994-04-13 | The Whitaker Corporation | Connecteur électrique ayant des moyens de décharge de traction améliorés |
WO1998033246A1 (fr) * | 1997-01-29 | 1998-07-30 | Ut Automotive Dearborn, Inc. | Procede de connexion d'un cable plat flexible et d'un connecteur |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017080952A1 (fr) * | 2015-11-13 | 2017-05-18 | Eurofeedback | Piece a main pour dispositif ipl comportant un connecteur electrique a fente |
FR3043541A1 (fr) * | 2015-11-13 | 2017-05-19 | Eurofeedback Sa | Piece a main pour dispositif ipl comportant un connecteur electrique a fente |
Also Published As
Publication number | Publication date |
---|---|
FR2798229A1 (fr) | 2001-03-09 |
EP1083634A3 (fr) | 2002-03-27 |
FR2798229B1 (fr) | 2001-10-12 |
FR2798230A1 (fr) | 2001-03-09 |
FR2798230B1 (fr) | 2001-10-12 |
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