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
  • H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
• • 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
  • H01R12/718—Contact members provided on the PCB without an insulating housing
• • 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
  • H01R13/10—Sockets for co-operation with pins or blades
  • H01R13/11—Resilient sockets
  • H01R13/115—U-shaped sockets having inwardly bent legs, e.g. spade type
• • 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
  • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
  • H01R43/0256—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections for soldering or welding connectors to a printed circuit board

Definitions

• Connector forming a component for surface mounting
• the present invention relates to a connector forming a surface mount component.
• CMS surface mount component
• Such a connector is known for example from WO 00/07263.
• Another connector is known from US 5,709,574.
• the latter comprises a flat base intended to be fixed on a substrate, at least two elastic tabs connected to the base, situated above the latter, and intended to form between them.
• the object of the present invention is to provide a connector whose design is adapted to the automatic cycle of gripping / placement / reflow soldering of CMS assembly lines at high speeds.
• the invention relates to a connector of the aforementioned type, characterized in that the gripping zone is located between the elastic tabs, centrally relative to the base of the connector, each opening being located laterally with respect to the zone grasping.
• This arrangement makes it possible to meet the constraints of the operations of placement of the connectors by nozzles at a high rate. Indeed, during the handling of the nozzles, they can be subjected to rotational movements with significant accelerations. he it is appropriate in these conditions that the mass of the connector is distributed in a balanced manner around the axis of rotation, which corresponds to the axis of the nozzle.
• At least one recess is formed in at least one elastic tab, allowing access of a suction nozzle to the gripping zone.
• This arrangement allows access to the gripping zone from above the connector, while maintaining lateral dimensions of the connector and a spacing limited elastic tabs.
• two lateral flanks connect the base to the two elastic tabs, the two resilient tabs converging towards the base from the upper parts of the flanks, in the direction of the clamping location.
• the elastic tabs are folded towards the base inside the two sides with an angle that brings the two walls closer to the elastic tabs vis-à-vis and allows their bending to ensure quality contacts over a large range of thicknesses of male conductive elements.
• the inner walls of the resilient tabs facing the clamping location have diverging lateral edges forming a lateral flare of the clamping position towards the outside of the connector.
• This arrangement facilitates the lateral entry of a conductive element of the male contact type. Moreover, the realization of this edge over a sufficient height and width at least partially closes the lateral tunnel formed between each elastic tab, the flank to which it is attached and the base, thus reducing the risk of entanglement of the connectors in a vibratory bowl. .
• the inner walls of the resilient tabs facing the clamping location have diverging lower edges, forming a flare towards the base of the clamping location.
• This flare makes it easier to introduce a conductive element of the male contact type from below the contactor, through an opening in the base.
• the recess extends to the lower edge of the elastic tab, separating it into two elastic portions. This arrangement allows to provide two separate clamping locations to accommodate two separate conductive elements, male contact type, simultaneously.
• the connector comprises at least one centering notch on the base or near it.
• the centering notches allow the connector to be positioned on the substrate or with respect to a suction nozzle by using positioning pins intended to penetrate at least partially into the centering notches.
• FIG. 1 represents a first embodiment of a connector according to the invention, seen in perspective.
• FIG. 1 shows the connector of Figure 1, seen from above.
• Figure 3 shows the connector of Figure 1 with a suction nozzle in contact with the gripping area.
• Figure 4 shows the connector of Figure 1, fixed on a substrate, a conductive member being inserted into the clamping location from below the substrate.
• Figure 5 shows the connector of Figure 1 attached to a substrate, a conductive member being inserted into the clamping location from above the connector.
• FIG. 6 represents the connector of FIG. 1, fixed on a substrate, a conductive element being introduced into the clamping position laterally.
• FIG. 7 shows a second embodiment of a connector, seen from below.
• FIG. 8 represents a third embodiment of a connector according to the invention, seen in perspective.
• FIG. 9 represents a fourth embodiment of a connector according to the invention, seen in perspective.
• FIG. 10 represents a fifth embodiment of a connector according to the invention, seen in perspective.
• FIG. 11 represents a sixth embodiment of a connector according to the invention, seen in perspective.
• a CMS connector 2 is made in one piece. It comprises a flat rectangular base 3 intended to be fixed on a substrate 4, two lateral flanks 5 extending substantially perpendicular to the base 3, above the base 3, from two opposite sides of the base 3. From the upper ends of the two sides 5 extend two oblique and convergent downwardly flexible tabs 6 intended to form between them a clamping position 7 for a conductive element 8.
• the inner walls of the resilient tabs 6, facing the clamping location 7 have diverging lateral edges 9 forming a lateral flare of the clamping position 7 towards the outside of the connector 2, seen in section along a plane parallel to the base 3. These inner walls also have diverging lower edges 10 forming a downward flare, from the clamping location 7, seen in section along a plane perpendicular to the base 3.
• the base 3 has lateral openings 12 made by cutting to allow the passage of a conductive element 8 entering from below, through a piercing of the substrate and intended to be clamped between the two elastic tabs 6, at the level of the clamping location 7, as shown in Figure 4. These openings 12 open on both side edges of the base 3.
• the center of the base 3 of the connector between the lateral openings 9 constitutes a grip zone 13 by suction.
• the gripping zone is accessible by a suction nozzle 14 from above the connector, between the elastic tabs 6.
• recesses 15 are formed in the elastic tabs 6, allowing access to a suction nozzle 14 to the gripping zone 13 from above the connector 2 with a sufficient clearance, as shown in FIG. 3.
• the recesses 15 extend to the free end of the elastic tabs 6, separating the latter in two sub-sections. independent elastic parts.
• the two side flanks 5 of the connector 16 having centering notches 17 formed near the base, made by cutting.
• the notches have a triangular profile, particularly suitable for centering. These notches 17 are arranged symmetrically with respect to the base 3.
• a connector 18 comprises the same elements as in the first embodiment, with the exception of the lateral flaring of the clamping location.
• a connector 19 comprises the same elements as in the third embodiment, except that the recesses 20 do not intersect the lower edge 10 of the elastic tabs 6.
• the dimensions of these recesses are variable depending on the intensity ranges required and the thicknesses of the male contacts.
• a connector 22 comprises the same elements as in the third embodiment except that it does not include recesses in the elastic tabs. This is a connector for thicker male-type conductor elements than those used with the first four embodiments of the connector.
• a connector 23 comprises the same elements as in the fifth embodiment, the sidewalls 5 however having concave lateral edges 24, so as to form a narrowing of these at the level of their median area. Such narrowing 24 promotes the elasticity of the sidewalls 5 and, therefore, elastic tabs 6 attached thereto.
• the connector is constituted by a cut piece and folded according to a cycle of successive operations to obtain the necessary angles.
• the contact surface of the connector 2, by the base 3, with the substrate 4 is important and guarantees a robust weld and the stability of the connector 2 on the substrate.
• the supply of the contacts in the automatic gripping position by the nozzles 14 is done by a specific tool placed instead of a supply by a component distributor, this tool being fed by a vibrating bowl.
• Several specific tools can be mounted to increase CMS reporting rates. Components can be striped for components
• CMS at an additional cost.
• the material of these contacts can vary according to the applications, it can be for example strip-tinned bronze, in conformity with the standards of reduction of the dangerous substances.
• the tinned finish is suitable for reflow soldering.

Landscapes

• Coupling Device And Connection With Printed Circuit (AREA)
• Multi-Conductor Connections (AREA)
• Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
• Chemically Coating (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=37264429

Family Applications (1)

Country Status (6)

Cited By (5)

Families Citing this family (10)

Citations (6)

Family Cites Families (2)

• 2006
  • 2006-03-17 FR FR0602370A patent/FR2898734B1/fr not_active Expired - Fee Related
• 2007
  • 2007-03-06 CN CN200780001236.5A patent/CN101356692B/zh active Active
  • 2007-03-06 EP EP07731095A patent/EP1997188B1/fr active Active
  • 2007-03-06 WO PCT/FR2007/000396 patent/WO2007118944A1/fr active Application Filing
  • 2007-03-06 AT AT07731095T patent/ATE515079T1/de not_active IP Right Cessation
  • 2007-03-06 ES ES07731095T patent/ES2366056T3/es active Active

Patent Citations (6)

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