WO2008016329A1 - Connecteur électrique - Google Patents

Connecteur électrique Download PDF

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Publication number
WO2008016329A1
WO2008016329A1 PCT/SG2006/000221 SG2006000221W WO2008016329A1 WO 2008016329 A1 WO2008016329 A1 WO 2008016329A1 SG 2006000221 W SG2006000221 W SG 2006000221W WO 2008016329 A1 WO2008016329 A1 WO 2008016329A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
sub
electrical connector
slot
conductive terminals
Prior art date
Application number
PCT/SG2006/000221
Other languages
English (en)
Inventor
Lothar Berghoff
Original Assignee
Logicom Industrial Holding Pte Ltd
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
Application filed by Logicom Industrial Holding Pte Ltd filed Critical Logicom Industrial Holding Pte Ltd
Priority to PCT/SG2006/000221 priority Critical patent/WO2008016329A1/fr
Priority to TW096128742A priority patent/TW200818612A/zh
Publication of WO2008016329A1 publication Critical patent/WO2008016329A1/fr

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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
    • H01R12/57—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
    • 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
    • H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures

Definitions

  • the following invention relates to the field of electrical connectors for electrically connecting printed circuit boards (PCBs); in particular, to an electrical connector that is durable, provides a reliable electrical connection and prevents solder wicking.
  • PCBs printed circuit boards
  • Electrical connectors are used in a variety of applications and typically, provide an electrical connection between two printed circuit boards (PCBs).
  • PCBs printed circuit boards
  • One example of electrical connectors commonly used is known as a board to board connector.
  • a typical board to board connector includes two components, a male connector and a female connector, each connector being mounted on the respective boards to be electrically connected to together.
  • the male and female connectors are designed such that one engages the other (and vice versa) during insertion. Although the male connector is typically inserted into the female connector, the reverse may also be applicable.
  • the female connector usually includes a housing having a slot in which the male connector mates with, typically via insertion.
  • the female connector includes a plurality of conductive terminals.
  • the conductive terminals electrically connect the PCB, on which the female connector is mounted on, to the male connector, and therefore, to the corresponding PCB on which the male connector is mounted on.
  • the plurality of conductive terminals in the case of the female connector, is typically arranged on either side and distributed along a substantial length of the slot. The spacing between each successive conductive terminal is known as the pitch, or terminal to terminal spacing.
  • Each conductive terminal typically includes a tail section and a contact section.
  • the tail section of the terminal connects the connector, both electrically and physically, to its respective PCB mount.
  • the contact section on the other hand, establishes the electrical and physical connection between the female connector and the inserted male connector.
  • the tail section is typically fixed to the PCB by solder.
  • solder wicking is the creeping up of the solder alloy along the tail section of the terminal and up to the contact section. The occurrence of solder wicking causes damage to the housing and possibly also creates short circuits within the connector.
  • patent 6,010,370 discloses an electrical connector fabricated via insert-molding having a housing, said housing having a pair of side walls and end walls to define a groove.
  • a plurality of contact terminals are mounted within each housing, each terminal having a solder section and a contact section and a housing engagement section.
  • the solder section extends out of the bottom of the housing for connection to a PCB.
  • the contact portion which follows the solder portion, is aligned vertically upwards and extends from the bottom, along the height of the inner surface of the sidewall, and terminates with the housing engagement section.
  • the housing engagement section is secured to the top of the sidewall and secures the terminal in position.
  • U.S. patent 6,155,886 also discloses an electrical connector manufactured by insert-molding.
  • the electrical connector described in this U.S. patent includes an insulative housing having an elongate groove extending along a substantial length of the housing. Also along the length of an upper portion of the groove is a plurality of holes, each adapted to receive a terminal.
  • Each terminal has a tail section, an end section and a contact section therebetween. The tail section protrudes from the bottom of the housing while the contact section is aligned along an inner wall of the groove.
  • Each hole accommodates the end section of the terminal such that said end portion protrudes vertically upwards and away from the contact section.
  • European patent EP 0 693 802 B1 also discloses an insert-molded connector.
  • This connector has a housing which has a longitudinal slot.
  • the slot extends substantially along the length of the housing and extends to the base of the housing.
  • the connector also includes terminals arranged in parallel along the length of the slot, each having a tail section, an end section and a contact section therebetween.
  • the tail section extends from a lower portion of the housing for attachment to a PCB, while the contact section is arranged to be exposed along the longitudinal inner wall of the slot.
  • the contact section terminates with the end section, where said end section is bent to be substantially convex and into a recess located at an upper portion of the slot.
  • insert-molding overcomes the problem of solder wicking, it raises another problem of ensuring that the insert-molded terminals within a housing are suitably secured such that they remain durable and are not subject to deformation, or peel-off when a force is applied to them. Instances of deformation and peel-off may take place over time with the insertion and removal of a male connector from the slot of a female connector.
  • an electrical connector that includes terminals that are securely fastened therein and is capable of withstanding deformation or peel-off during use.
  • an electrical connector as defined in the appended claims is capable of overcoming the above- mentioned difficulties.
  • One embodiment of the electrical connector of the present invention includes an insulative housing.
  • the insulative housing has two opposing side walls and two opposing end walls wherein the side walls and end walls each have an inner surface.
  • the arrangement of the side walls and end walls is such that they define a slot.
  • the slot is capable of receiving a complementary electrical connector. Accordingly, electrical connectors having a slot are typically also known as female electrical connectors.
  • the female electrical connector also includes a plurality of conductive terminals.
  • the conductive terminals are arranged in a spaced-apart relationship along the length of each side wall.
  • the spaced apart relationship is also known as the pitch and is typically less than 1.0mm. While it is also possible to have a pitch greater than 1.0mm, the present trend in the industry appears to be heading towards smaller pitches. In any case, the conductive terminals of any embodiment of the present invention are not excluded from having a pitch of
  • Each conductive terminal includes a tail-end section and a contact section, wherein the tail-end section and the contact section are both integrally formed as a single piece.
  • the tail-end section extends outwards from a base region of the slot for affixation to a circuit board.
  • the contact section creates a contact surface between the electrical connector and its complementary electrical connector and includes a first sub-section and a second sub-section.
  • the first sub-section is located in between the tail-end section and second sub-section.
  • the first sub-section at least contacts the side wall and extends at least substantially vertically upwards through the base of the housing of the female connector, along the height of the side wall in a first direction.
  • the second sub-section is bent towards or into the slot such that a generally U- shaped flexural spring is defined by the first and second sub-sections or more specifically, by the bend of the first and second sub-sections.
  • one arm of the U-shape is formed by the first sub-section and the other arm is formed by the second sub-portion.
  • the middle portion of the U-shape may be formed entirely by either the first sub-section, second sub-section or a combination thereof.
  • the second sub-section (which forms one arm of the U-shaped flexural spring) further extends at least substantially vertically downwards along the height of the inner surface of the side wall, in a second direction and terminates with a free end.
  • the second direction is one taken to be substantially opposite to the first.
  • the first sub-section of each of the plurality of conductive terminals is embedded within the side walls. This is typically achieved via an insert-molding process, which will be described in detail later on.
  • the first sub-section extends substantially along the height of the side wall such that it is at least substantially coplanar to the side wall.
  • the second sub-section tends to be adjacent or in contact with the inner surface of the side wall after being bent into the slot, over the top lateral surface of the side wall.
  • the first subsection of each of the plurality of conductive terminals is formed in abutment to the side walls.
  • the first sub-section extends along the height of the inner surface of the side wall and is also at least substantially parallel to the height of the side wall.
  • the first sub-section may adhere to the inner surface of the side wall or it may just be in contact but not affixed thereto.
  • the first sub-section is not embedded within the side wall, it may still be formed via insert-molding as long as at least the tail-end section of the conductive terminal is insert-molded within a region of the side wall near the base of the slot, for example.
  • the second sub-section after being bent to form the generally U-shaped flexural spring, tends to be adjacent or even in contact with the first sub-section as the second sub-section extends downwards towards the base of the slot.
  • the U-shaped flexural spring formed by the first and second sub-sections of the contact section allows the second sub-section to flex between a compressed state and a released state.
  • the compressed state is attained when the complementary electrical connector is inserted into the slot of the electrical connector. Accordingly, the default state of the second sub-section is in a released state.
  • the compressed state typically results in the second sub-section being nearer, or even in contact with the inner surface of the side wall.
  • the released state of the second sub-section in this embodiment is therefore at least slightly adrift of the inner surface of the side wall of the slot although portions of the second sub-section may still retain contact with the inner surface of the side wall.
  • the compressed state of the second sub-section tends to be nearer to the inner surface of the side wall, but not contacting it.
  • the second sub-section in one exemplary embodiment, may contact the first sub-section when in a compressed state.
  • second sub-section may flex such that it is nearer to the inner surface of the side wall but does not contact the first subsection. Accordingly, the compressed state of the second sub-section may also vary between the above-mentioned examples, if said examples are taken to be the limits between which the compressed and released states are defined.
  • the inner surfaces of the side walls include a plurality of recesses or grooves adapted to accommodate and/or engage the bent second sub-section of the plurality of conductive terminals.
  • the recesses may, for example be tapered or saw-tooth in design. This is to assist and provide guiding means when the second sub-section is bent into the slot.
  • the recesses may be adapted to accommodate and/or engage either the first sub-section, second sub-section or both the first and second subsection therein.
  • the base of the slot may also include a pair of grooves (i.e. two). Each groove typically extends along the length of the slot and is located adjacent to the side walls. The grooves are adapted to secure the free end of the bent second sub-section therein.
  • the base of the slot may have a plurality of recesses designed to accommodate therein the free end of the second sub-section of the conductive terminal. As with the grooves, the plurality of recesses may typically span the length of the slot.
  • each conductive terminal includes a tail-end section.
  • the tail-end section extends outwards from the base region of the slot, i.e. from the area under the slot or around the areas of the side wall substantially near the base of the slot.
  • the tail-end section may extend from the base of the slot either parallel to the side wall or perpendicular thereto.
  • the tail-end section may extend outwards from the base of the side wall and in a direction substantially perpendicular to said side wall, i.e. substantially parallel to the plane of the base.
  • each of the plurality of conductive terminals on a first side wall has a corresponding conductive terminal on a second side wall, and said corresponding conductive terminal being orientated as a mirror image thereof. Accordingly, the same description applies to all aspects of the invention for the second side wall and to the corresponding conductive terminals present there.
  • the female electrical connector has a complementary electrical connector known as a male electrical connector, which is described here below.
  • the male electrical connector includes an insulative mating portion having a top surface and at least two mating surfaces adapted to mate with the slot of the female electrical connector. The mating surfaces are typically substantially perpendicular to the top surface.
  • the male electrical connector also includes a plurality of conductive terminals. The conductive terminals are arranged in a spaced-apart relationship along each of the mating surfaces and correspond to an arrangement of conductive terminals in the slot of the female electrical connector.
  • the arrangement of conductive terminals in the male connector is such that each conductive terminal along the length of the mating surfaces at least contacts its corresponding conductive terminal (of the female electrical connector) when the mating portion mates with the slot of the female electrical connector.
  • the pitch of the male connector corresponds to the pitch of the conductive terminals in the female connector
  • Each of the plurality of conductive terminals of the mating portion includes a tail-end section and a contact section, both integrally formed.
  • the tail- end section extends outwards from the top surface region for affixation to a circuit board.
  • the contact section has a first sub-section and a second subsection such that the first sub-section is located in between the tail-end section and second sub-section. The contact section creates a contact surface between the electrical connector and the slot.
  • the first sub-section contacts and extends at least substantially vertically in a first direction along the height of the mating surfaces and away from the top section; and the second sub-section is bent in a manner, at least substantially transverse to the length of the mating surfaces. This results in a generally U- shaped flexural spring being defined by the first and second sub-sections.
  • the second sub-section also extends at least substantially vertically in a second direction opposite to the first, and along the height of the mating portion to terminate with a free end.
  • the tail-end section typically extends outwards from the top surface region (either directly from the top surface of from areas of the mating surfaces substantially near the top surface) of the mating portion in a similar fashion as the tail-end section associated with the female connector.
  • the tail-end section of the male connector may extend from the top surface.
  • the tail-end section may extend from the mating surfaces in a direction substantially perpendicular to said mating surfaces, i.e. parallel to the plane of the top surface.
  • the first sub-section is embedded within the mating portion.
  • the first sub-section extends at least substantially vertically in a first direction from the top surface along the height of the mating portion or mating surfaces.
  • the first sub-section of each of the plurality of conductive terminals is formed in abutment to the mating portion.
  • the first sub-section extends at least substantially vertically from the top surface in a first direction, and along the height of the mating portion or mating surfaces.
  • connec or o , e genera -sna c flexural spring-like portion allows the second sub-section to flex between a compressed state and a released state.
  • the compressed state and released state for the male connector are also defined similarly as that for the female connector above.
  • the mating portion of the male connector may also include a plurality of recesses or grooves.
  • the recesses or grooves may be located along each of the mating surfaces and are adapted to accommodate and/or engage each of the bent second sub-sections of the plurality of conductive terminals.
  • the insulative housing, insulative mating portion and conductive terminals may be fabricated from any suitable material.
  • suitable materials for fabricating the insulative housing and insulative mating portion include, but are not limited to, plastic, hard rubber and composites thereof.
  • suitable materials for fabricating the conductive terminals include, but are not limited to, alloys such as nickel-plated phosphor bronze, mild steel or nickel-plated beryllium copper.
  • a layer of gold (Au) may also be deposited on the conductive terminals to improve their conductivity.
  • Figure 1 shows a perspective view of an exemplary embodiment of the present invention
  • Figures 2A - 2C show a cross-sectional view about the line X-X of the smbodiment of Figure 1 and a method of fabrication of the exemplary mbodiment of Figure 1 ;
  • Figures 3A - 3C show method of fabrication of an exemplary embodiment of a male interconnector according to the present invention
  • Figures 4A - 4B show an assembly of the exemplary embodiments of Figure 2 and Figure 3;
  • Figure 5A shows an embodiment of a terminal housing
  • Figure 5B shows a further embodiment of a terminal housing
  • Figure 6 shows a carrier strip with a plurality of conductive terminals
  • Figures 7A - 7B show a top view and a cross-sectional view about the line Y-Y of an exemplary embodiment of the invention, respectively.
  • Figure 1 shows a perspective view of an exemplary embodiment of the invention.
  • This exemplary embodiment is a female connector having a pair of side walls 17 and a pair of end walls 3, which in combination with each other, define a housing 1 and a slot 7.
  • the slot 7 is adapted to receive a complementary connector (not shown).
  • a plurality of conductive terminals is arranged in a spaced apart relationship along the length of each side wall 7.
  • Each conductive terminal includes a contact section 19 and a tail-end section 11.
  • the conductive terminals are insert- molded within the side walls 17 of the housing such that the tail-end section 11 extends outwards, in a perpendicular direction, from the base of the side wall 17.
  • the contact section of the conductive terminal extends vertically along the height of the side wall 17 and protrudes from the top lateral surface of the side wall 17.
  • the protruding portion of the contact section is then bent into the slot 7 such that a substantially U-shaped flexural spring is formed.
  • the substantially U-shaped flexural spring will be discussed later in greater detail.
  • the protruding portion of the contact section bent into the slot 7 terminates with a free end which is received into a recess 9 in the base of the slot 7.
  • Figures 2A - 2C show a cross-section (about the line X-X of Figure 1) of the exemplary embodiment of a female interconnector according to Figure 1.
  • the connector female
  • the side walls 17 define a slot therebetween, along with a base 11 , which is adapted to accommodate a complementary electrical connector, i.e. a male connector.
  • the electrical connector also includes a plurality of conductive terminals, each of which comprise a tail-end section 11 and a contact section 19 (for the sake of clarity only a pair of conductive terminals is illustrated here).
  • the contact section 19 is made up of a first sub-section 13 and a second sub-section 15.
  • the tail-end section 11 of the conductive terminal extends perpendicularly through the lower region of the side wall 17.
  • the tail-end may extend directly downwards such that it extends perpendicularly from the base (not shown).
  • the tail section is principally used to secure the female connector to its respective PCB via soldering, for example.
  • the first sub-section 13 may be considered to begin at the point at which the conductive terminal extends vertically upwards, along the height of the side wall 17.
  • the second sub-section 15 may be considered to begin at the point when the contact section 19 is no longer embedded within the side wall 17.
  • FIG. 2A shows the connector at a point in the manufacturing process just after the conductive terminals have been insert-molded within the housing. Details pertaining to the manufacturing process will be described below in Figure 5A and 5B.
  • the second sub-section 15 is bent into the slot such that a generally U- shaped flexural spring 12 is defined by both the first and second sub-sections 13, 15.
  • the bending, and therefore definition of the generally U-shaped flexural spring 12, is achieved in two steps.
  • the first step is when the second sub-section 15 is bent at about ninety degrees such that it is at least substantially parallel to the base of the slot, as shown in Figure 2B.
  • the conductive terminals are typically chamfered or rounded at the portions that undergo bending, even if this is not clearly illustrated in the attached drawings.
  • the second step involves the bending of the second sub-section 15 in the directions indicated by the arrows, i.e. about a further ninety degrees as shown in Figure 1B, such that the U-shape is completed.
  • the second sub-section does not typically contact the side wall 17. Rather, it flexes outwards at an angle theta ( ⁇ ) and is held in place by recess 9.
  • one arm of the U-shape is formed by the first sub-section 13 and the other arm by the second sub-section 15.
  • the middle portion of the U-shape may be defined by portions of the first sub subsection 13, by the second sub-section 15, or combination of thereof with the second sub-section 15 terminating with a free end, which as mentioned, is received into groove 9.
  • Figures 3A - 3C show a method of fabrication of an exemplary embodiment of a male interconnector according to the present invention.
  • the male connector includes an insulative mating portion having a top surface 27 and at least two mating surfaces 28.
  • the mating surfaces 28 of the mating portion are adapted to mate with the slot of a complementary electrical connector, such as that shown in Figure 2, for example.
  • the male connector also includes a plurality of conductive terminals.
  • each of the plurality of conductive terminals of the mating portion include a tail-end section 21 that extends outwards from the top surface region for affixation to a circuit board and a contact section 29 having a first subsection 23 and a second sub-section 25.
  • the first sub-section 23 is in between the tail-end section 21 and second sub-section 25.
  • the contact section 29 and tail-end section 21 of the conductive terminal are integrally formed as a single part.
  • the first sub-section 23 contacts and extends at least substantially vertically in a first direction (downwards, towards the lower end of the mating portion) along the height of the mating surfaces 28 and away from the top section.
  • the formation of the complementary electrical connector for the female connector of Figure 2 is achieved via a two-step manipulation of the second sub-section 25 where the second sub-section is bent in a convex manner.
  • the second sub-section 25 is bent about ninety degrees as indicated by the arrows to contact the mating surfaces 28 transversely.
  • Figure 3B shows that the second sub-section 25 is substantially parallel to the top surface of the mating portion, i.e. substantially perpendicular to the first subsection 23.
  • the second sub-section 25 is further bent about ninety degrees such that is forms a generally U-shaped flexural spring. Similar to the flexural spring of the female connector of Figure 2, the second sub-section 25 also does not adhere to the mating surface 28, but rather, extends outwards by an angle phi ( ⁇ ) as shown.
  • the U-shaped flexural spring is defined by the first and second sub-sections.
  • one arm of the U-shape is formed by the first sub-section 23 and the other arm by the second subsection 25.
  • the middle portion of the U-shape 22 may be formed by portions of the first sub sub-section 23, portions of the second sub-section 25, or any combinations thereof, with the second sub-section 25 terminating with a free end.
  • Figures 4A - 4B show an assembly of a male and female interconnector of exemplary embodiments of Figure 2 and Figure 3.
  • the tail-end sections 11 and 21 of the respective electrical connectors are soldered onto PCBs.
  • solder has a tendency to creep up along the tail and if permitted, into the housing and up to the contact section 19 and 29.
  • the creep of the solder is prevented by the housing (side walls 17 and mating surfaces 27 and 28) of the respective electrical connectors.
  • the complementary electrical connectors are affixed to their respective PCBs, they may be mated together to electrically connect the two
  • the end walls 3 of the female connector may include a locking mechanism.
  • the locking mechanism may have a simple under-cut designed to receive and hold the male connector in place.
  • an additional means of securing the male and female connectors together is provided by the opposing spring forces.
  • a spring force is exerted by the second sub-section 15 of the contact section on the second sub-section 25 of the male connector and vice versa.
  • both the second sub-sections 15 and 25 are pressing against each other to enhance the connectivity and secure fitting of the male and female connector.
  • the second sub-sections 15 and 25 of the respective electrical connectors are in physical (and therefore electrical contact) with each other.
  • Figure 5A shows an exemplary embodiment of a housing and Figure 5B shows the housing of the exemplary embodiment of Figure 1.
  • the housing may include, due to the insert-molding process, a plurality of openings 43 in which the first sub-section 13 is embedded in. Additionally, the housing may also include a plurality of recesses 41 along the length of the slot to accommodate the second sub-section 15 when it is bent into the slot. Upon being bent into the slot, the free end of the second sub-section is engaged by a groove 44 extending along the length of the slot, and adjacent to either side wall 17.
  • the housing shown in Figure 5B is essentially the same as that of Figure 5A with the exception that the base 49 of the slot formed by the side walls 17 and end walls 3 includes a plurality of cavities 48 instead of a groove as in Figure 5A.
  • Each cavity 48 is adapted to engage the free end of the second sub-section of the conductive terminal when it is bent into the slot as previously described.
  • Figure 6 shows a carrier strip with a plurality of conductive terminals.
  • the conductive terminals are stamped and formed from stock metal sheets.
  • the conductive terminals, prior to insert-molding are each formed to have a tail-end section 47, and contact sections made up of a first sub-section 46 and a second sub-section 45.
  • the various sections and sub-sections of the conductive terminal are formed as a single integral part as shown in Figure 6 and may be mounted symmetrically onto either side of a carrier strip 48.
  • the shape of the conductive terminal prior to insert molding is substantially L-shaped.
  • the carrier strip 48 is used to position the conductive terminals such that when a suitable mold assembly, having an upper mold assembly and a lower mold assembly, is utilized, a housing, in the case of a female electrical connector, is formed around the conductive terminals, as illustrated in the exemplary embodiment of Figure 2.
  • the housing includes a pair of side walls 17, each bounded by a pair of end walls 3 at opposing ends thereof to form the slot having a base 49.
  • Figures 7A - 7B show a top view and a cross-sectional view about the line Y-Y of an exemplary embodiment of the invention, respectively.
  • Figure 6A is similar to Figure 5A except that it includes the conductive terminals which are insert-molded during the production of the housing, as described earlier.
  • the housing is formed by the side walls 52 and end walls 59, which define the slot and the groove 58 along the length of the slot.
  • the groove 58 in this exemplary embodiment, is defined between a base 54 and the respective side walls 52.
  • the conductive terminals each have a tail-end section 51 extending outwards, substantially perpendicular to the side wall 52 and a contact section (defined by first and second sub-sections 53 and 55) extending vertically upwards from the base of the housing, and along the height of the respective side walls 52.
  • the second sub-section 55 is bent, as described in Figure 2B and 2C to form the generally U-shaped flexural spring.
  • the U-shaped flexural spring is defined by both the first and second subsections 53 and 55 respectively.
  • One arm of the U-shape is formed by the first sub-section 53 and the other arm by the second sub-section 55.
  • the middle portion of the U-shape 56 is formed by portions of the first sub sub-section 53 and substantially by portions of the second sub-section 55.
  • the second sub- section 55 terminates with a free end that is engaged by the groove 58.

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Abstract

L'invention concerne un connecteur électrique comportant un logement isolant présentant deux parois latérales se faisant face et deux parois d'extrémités se faisant face, les parois latérales et les parois d'extrémité présentant chacune une surface intérieure qui définit une fente pouvant recevoir un connecteur électrique complémentaire. Le connecteur électrique inclut également une pluralité de bornes conductrices disposées en relation d'espacement sur toute la longueur de chaque paroi latérale. Chaque borne conductrice inclut une section de queue qui s'étend vers l'extérieur depuis une zone de base de la fente ainsi qu'une section de contact qui crée une surface de contact, la section de queue et la section de contact étant formées en une seule pièce. La section de contact comporte une première sous-section et une seconde sous-section telles que la première sous-section se trouve entre la section de queue et la seconde sous-section et entre en contact et s'étend au moins sensiblement verticalement sur toute la hauteur de la paroi latérale dans un premier sens. La seconde sous-section est pliée dans la fente de telle sorte qu'un ressort de flexion en forme générale de U est défini par les première et seconde sous-sections et s'étend au moins sensiblement verticalement sur toute la hauteur de la surface intérieure de la paroi latérale dans un second sens, ledit second sens étant sensiblement opposé au premier.
PCT/SG2006/000221 2006-08-03 2006-08-03 Connecteur électrique WO2008016329A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/SG2006/000221 WO2008016329A1 (fr) 2006-08-03 2006-08-03 Connecteur électrique
TW096128742A TW200818612A (en) 2006-08-03 2007-08-03 Electrical connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG2006/000221 WO2008016329A1 (fr) 2006-08-03 2006-08-03 Connecteur électrique

Publications (1)

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WO2008016329A1 true WO2008016329A1 (fr) 2008-02-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010005956A1 (fr) * 2008-07-07 2010-01-14 Molex Incorporated Connecteur de carte

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022068976A (ja) * 2020-10-23 2022-05-11 住友電装株式会社 コネクタ構造

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5842875A (en) * 1993-12-14 1998-12-01 Molex Incorporated Electric connector assembly for use in coupling two printed boards
JP2004059724A (ja) * 2002-07-29 2004-02-26 Dainippon Ink & Chem Inc 塗料組成物
US6793506B1 (en) * 2003-08-27 2004-09-21 Molex Incorporated Board-to-board electrical connector assembly
JP2004281364A (ja) * 2002-11-01 2004-10-07 Molex Inc 基板対基板型コネクタ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5842875A (en) * 1993-12-14 1998-12-01 Molex Incorporated Electric connector assembly for use in coupling two printed boards
JP2004059724A (ja) * 2002-07-29 2004-02-26 Dainippon Ink & Chem Inc 塗料組成物
JP2004281364A (ja) * 2002-11-01 2004-10-07 Molex Inc 基板対基板型コネクタ
US6793506B1 (en) * 2003-08-27 2004-09-21 Molex Incorporated Board-to-board electrical connector assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010005956A1 (fr) * 2008-07-07 2010-01-14 Molex Incorporated Connecteur de carte
US8827724B2 (en) 2008-07-07 2014-09-09 Molex Incorporated Board connector

Also Published As

Publication number Publication date
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