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
  • H01R12/71—Coupling devices for rigid printing circuits or like structures
  • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
  • H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
  • H01R12/724—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits containing contact members forming a right angle

Definitions

• the invention relates to a connector for electrically contacting a printed circuit board with the features contained in the preamble of claim 1.
• Printed circuit boards are usually equipped with components on one side, the so-called “component top”.
• component top For this purpose, who uses the so-called “wired components” in which existing wires are bent through holes through the printed circuit board and are contacted on the so-called “solder underside” with a printed circuit electrically conductors.
• wired components in which existing wires are bent through holes through the printed circuit board and are contacted on the so-called “solder underside” with a printed circuit electrically conductors.
• soldering side on the printed circuit board that produces the majority of the electrical connections results in a maximum component density that cannot be exceeded.
• an electrical device e.g. a programmable logic controller
• summarizing flat assemblies in a common subrack Such subracks are preferably designed in so-called ter standard assembly technology.
• the individual flat modules are inserted parallel to one another vertically into the module carrier.
• a front plate provided with inscriptions and preferably display and operating elements is attached to the front end edge of each flat module.
• At the opposite rear end edge there is at least one connector, in particular a connector. If the respective module is pushed into the module rack, this plug connector preferably engages in a connector counterpart, in particular designed as a female connector, which is attached in the interior of the module rack.
• the connector counterparts of all the flat assemblies combined in a subrack are finally connected to one another in a so-called backplane wiring in a suitable manner.
• the position of the parallel flat modules in the subrack can be preferred with standard assembly systems depending on a standardized, smallest distance dimension. In this way it is possible, depending on the current width of one of the vertical flat assemblies, to provide a precisely defined installation space for it inside the subrack between adjacent, parallel flat assemblies.
• the width of such a standard installation space advantageously corresponds to a multiple of the preferably specified, smallest distance dimension in the subrack.
• Rail-like guide and support bars which can be snapped into mounting holes in the mounting frame, are used to fix the vertical flat modules to the lower and upper longitudinal edges.
• the mutual spacing of such fastening holes defines the preferably standardized, smallest spacing dimension in a standard construction system, and thus also the possible width of each installation location for one of the parallel flat assemblies.
• the position of one of the vertical printed circuit boards within the space provided for this purpose is essentially determined by the shape and arrangement of the connectors at the rear end edge.
• Such plug connectors for the electrical contacting of printed circuit boards are attached, for example, to the top of the component and contacted there using SMT technology, or the connecting legs are guided through the printed circuit board by means of bores and contacted on the underside of the solder.
• such an arrangement results in an eccentric position of the vertical flat module within the associated installation space. If, for example, when looking at the front of a subrack, the component top of a printed circuit board equipped with components points to the right and the underside of the solder to the left, in this Fa the base plate of the printed circuit board lies in the left area of the associated installation location.
• the invention is based on the object of specifying a plug connector for electrical contacting of a flat module provided with components on both sides, in particular in hybrid assembly.
• FIG. 2 shows a further embodiment of the connector with contact pins guided on both sides of the printed circuit board assembly and receiving slots for the contact pins guided on one side
• FIG. 3 shows a two-shell embodiment of the connector according to the invention
• FIG. 1 shows an example of a mounting location SEP for a flat module LP on the right in a subrack poses. This is limited by the dash-dotted lines and marked with I or.
• a plug connector SV attached to an end face ST of the fla assembly LP serves for the supply and discharge of the electrical signals of the flat assembly.
• contact pins of the connector are guided on the printed circuit board.
• these contact pins are preferably arranged in the rows KSRI, KSR2, KSR3. Cables routed preferably in the body of the connector are used to establish contact between the contact pins and the outer, electrical connection elements of the connector.
• the plug connector SV which is shown in FIG.
• these electrical connecting elements are preferably also male contacts arranged in rows MKR1, MKR2, MKR3. These knife contacts preferably protrude from the plug connector SV in a trough-shaped knife contact opening MKO.
• a connector counterpart which is preferably designed as a female connector.
• the plug connector SV takes up almost the width of the installation space SEP provided for the printed circuit board assembly. According to the invention, this is located almost in the middle of the standard installation space. As a result, it is particularly advantageously possible not only to assemble the previous component top side BS, but also the previous solder underside LS, in particular with surface-mountable components. Due to the approximately central position of the base plate of the printed circuit board in the installation space SEP, a sufficient distance to the boundary lines I and V of the installation space assigned to the printed circuit board is ensured, despite the fact that components are fitted on both sides, in particular hybrid.
• the subrack receiving the flat assembly is made using standard construction technology, there is the option of attaching guide and support strips for fixing the inserted flat assembly LP in the assembly supports to the dash-dotted lines marked II, III and IV in FIG. These positions are separated from one another in the manner described above by the smallest distance dimension KRM which characterizes the respective standard construction system.
• the advantageous embodiment of a connector S according to the invention shown in FIG. 1 has the particular advantage that the central position of the flat module in the SEP slot precisely corresponds to the standardized position III in the rack.
• the advantageous embodiment of the connector according to the invention shown in FIG. 1 furthermore has a contact side AU and an angled guide side FS.
• the connector SV is advantageously placed with the guide side FS on one side of the printed circuit board, in the example of FIG. 1 on the previous component upper side BS, while the front edge ST of the printed circuit board bears against the support side A of the connector.
• a connector constructed in this way a mechanically high-strength connection to the printed circuit board assembly LP can be established.
• the contact pins of the connector which are preferably arranged in the rows KSR1, KSR2, KSR3, are guided through the upper area SVO onto one side of the printed circuit board.
• this is the previous component top side BS.
• the contact pins are in a known manner by means of through the flat modules to the previous soldering side LS and there, for example electrically contacted with a conductor track LB. Since the contact pins in the embodiment shown in FIG. 1 are held by the upper area SVO of the connector SV according to the invention, the electrical contacting of the contact pins on the conductor tracks on the printed circuit board can also be achieved by means of pressing.
• the contact pins are an extension of the knife contacts MKR1 MKR2, MKR3 from the contact side AU of the connector to the previous soldering underside LS of the printed circuit board assembly LP.
• the contact pins are located outside the body of the connector SV and thus in particular not supported by the upper part SVO of the connector. It is particularly advantageous here if the contact pins e.g. In the manner shown in FIG. 4, they are guided to the underside of the soldering unit d flat module such that they can be contacted in an electrically conductive manner there in the manner known from SMT surface mounting technology.
• Such an embodiment has the particular advantage that no holes have to be provided on the circuit board. Rather, the connector according to the invention can be used together with SMD components in one work step in surface mounting technology, e.g. be contacted on the previous soldering underside.
• the contact pins of the connector arranged in particular in the rows KSR1, KSR2, KSR3 are guided on both sides of the printed circuit board assembly LP.
• the row of contact pins KSRI is guided out of the support side AU of the plug connector SV onto the previous underside of the LS solder.
• the contact pin rows KSR2 and KSR3 are in the previous way through the upper area SVO of the connector to the previous component top side BS of the printed circuit board.
• these two rows of contact pins are to be electrically contacted with the printed circuit board by press-in, it is particularly advantageous for reasons of assembly technology to include receiving slots for the contact pin of the KSRI series, which is led from the other side to the printed circuit board, on the contact side AU of the plug in particular to see connector facing end ST of the printed circuit board.
• a receiving slot AS is shown as an example in FIG.
• FIG. 3 shows a further, advantageous, two-shell embodiment of the connector according to the invention.
• the first row of MKR knife contacts and, in extension, the first row of contact pins KSRl led to the underside of the solder are accommodated in a first half SVl of the connector.
• the rows MKR2, MKR3 of the knife contacts and the associated rows KSR2, KSR3 of the contact pins guided on the top of the component are accommodated in a second half SV2 of the plug connector according to the invention.
• Such a two-shell embodiment has the advantage in comparison to the embodiment shown in FIG. 2 that no receiving slots have to be provided for the contact pins guided on one of the sides of the flat module.
• first row of contact pins KSRI in the first connector half SV1 and the row of contact pins KSR2, KSR3 in the second connector half SV2 can be contacted in an electrically conductive manner, for example by surface mounting, with the printed circuit board assembly. 3, the contact pins in both connector halves, in particular by the respective
• such a plate-shaped cover AB is shown as an example for the previous underside LS, which is preferably provided with surface-mounted components.
• the connector according to the invention thus has means for holding at least one such cover.
• this holding center is designed in the form of a holding slot HS which is present, for example, in the upper region SV10 of the first half SV1 of the two-shell connector.
• the surface of the plug connector SV on which the cover plate AB is held, for example by means of gluing, is used particularly advantageously as the holding means.
• a further cover which is held on the second half SV2 of the plug connector, can be provided for the previous component side BS of the printed circuit board assembly.

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• Coupling Device And Connection With Printed Circuit (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6828102

Family Applications (1)

Country Status (3)

Families Citing this family (9)

Citations (4)

• 1988
  • 1988-09-19 DE DE8811877U patent/DE8811877U1/de not_active Expired
• 1989
  • 1989-03-15 WO PCT/EP1989/000271 patent/WO1990003672A1/de unknown
  • 1989-03-15 EP EP89104647A patent/EP0359895A1/de not_active Withdrawn

Patent Citations (4)

Non-Patent Citations (3)

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