EP2280453B1 - Steckverbinder - Google Patents

Steckverbinder Download PDF

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Publication number
EP2280453B1
EP2280453B1 EP10007730.4A EP10007730A EP2280453B1 EP 2280453 B1 EP2280453 B1 EP 2280453B1 EP 10007730 A EP10007730 A EP 10007730A EP 2280453 B1 EP2280453 B1 EP 2280453B1
Authority
EP
European Patent Office
Prior art keywords
contact pin
insertion opening
conductor
passage
pin insertion
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.)
Active
Application number
EP10007730.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2280453A1 (de
Inventor
Konrad Stromiedel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wago Verwaltungs GmbH
Original Assignee
Wago Verwaltungs GmbH
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.)
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Publication date
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Publication of EP2280453A1 publication Critical patent/EP2280453A1/de
Application granted granted Critical
Publication of EP2280453B1 publication Critical patent/EP2280453B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/50—Bases; Cases formed as an integral body
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool

Definitions

  • the invention relates to a connector having an insulating material housing, which has at least one contact pin insertion opening on a first housing side for the introduction of electrically conductive contact pins and at least one conductor insertion opening on a second housing side for the insertion of insulation-free ends of electrical conductors, wherein a pair of Contact pin insertion opening and conductor insertion is assigned in each case a common conductor connection space, the conductor insertion opening in the conductor connection space and the contact pin insertion opening has a passage to the conductor connection space, and each having a spring terminal connection in an associated conductor connection space with a spring element which has a spring force transversely to the direction of extension of a pair of contact pin insertion opening and conductor insertion opening so displaceable clamping portion that upon insertion of an insulation-free end of an elekt In the ladder insertion opening, the insulation-free end is pressed in the direction of the contact pin insertion opening.
  • Such connectors are used to contact electrical conductors without screws by means of a spring force terminal connection with the connector and to contact electrically via the spring force terminal connection with a contact pin.
  • the contact pin may be soldered, for example, in a printed circuit board or provide a connection to a mating plug connector placed on the connector.
  • WO 00/31830 discloses such a connector in the form of a printed circuit board terminal.
  • An electrical conductor is thereby using a contact spring pressed into a circuit board solderable contact pin, so that an electrically conductive contact between the electrical conductor and contact pin is provided.
  • the lower edge of the conductor insertion opening is aligned with the upper edge of the contact pin. Since the contact pin is provided to be installed in the housing prior to insertion of the electrical conductor, the contact pin and electrical conductors share a common conductor terminal space. Otherwise, the electrical conductor would be pressed by the spring force in the receiving space for the contact pin and close it so that after insertion of an electrical conductor no pin can be subsequently inserted into the connector.
  • EP 1 152 489 A2 and EP 1 622 224 A1 disclose spring-loaded terminals in which electrical conductors are pressed against each other with separate spring terminals against a common busbar piece and contacted with it.
  • FR 2 205 759 A1 shows a connector in which a busbar sheet is caulked with a bent tab in the insulating housing of the connector.
  • the busbar sheet is received in a rectangular recess in the insulating housing adjacent to the conductor receiving space in which a U-shaped bent clamping spring is arranged.
  • the free terminal end of the clamping spring rests on the contact side of the busbar sheet, so that the stripped end of an electrical conductor is pressed by the clamping spring on the busbar sheet.
  • the width of the busbar sheet and the rectangular receptacle is so large that an electrical conductor can completely immerse yourself in the rectangular recording.
  • a similar embodiment of a connector is also in the FR 2 164 027 A5 disclosed.
  • the conical surface of the busbar sheet directly adjoins the conductor receiving space.
  • a passage between the contact pin insertion opening and the conductor connection space is not present.
  • the displacement area is in this case provided above the nip in the region of the conductor insertion opening in the insulating housing and forms part of the conductor insertion opening so that seen in cross section, the conductor insertion opening together with the displacement area at the height of the displacement area on an axis of symmetry of the conductor insertion opening, the is defined by the conductor insertion opening above the displacement area.
  • the conductor terminal space and the contact pin insertion opening merge into one another such that the electrical conductor is pressed by spring force into the contact pin insertion opening when no contact pin is inserted into the connector.
  • the object of the present invention is to provide an improved connector in which the contact pin insertion opening is kept free with an unplugged contact pin of a trapped electrical conductor and still sufficient displacement of the electrical conductor against the spring force upon insertion a contact pin and connected thereto a secure electrical contacting of the electrical conductor is achieved with the contact pin.
  • the connector of the type mentioned above in that the at least one contact pin insertion opening over a length in its aligned from the first housing side to the second housing side extension direction at least in the region of the clamping portion has a width of the passage, which is less than the width is between the opposite side walls of the conductor terminal space adjacent to the transition to the contact pin insertion opening.
  • the reduced width of the passage of the contact pin insertion opening to the conductor terminal space leads to a spatial separation of the conductor terminal space and pin insertion opening and to prevent that the insulation-free end of an electrical conductor is pressed by the spring element into the contact pin insertion opening so far in that it blocks and prevents insertion of a contact pin into the contact pin insertion opening.
  • the passage of the contact pin insertion opening to the conductor connection space also serves as a displacement region for the electrical conductor, which can partially submerge in this passage to push back the electrical conductor after retraction of a contact pin against the spring force in the direction of conductor terminal space. In this way, a secure electrical contact between the contact pin and the insulation-free end of the electrical conductor is ensured.
  • the insulation-free end of the electrical conductor is pressed by the spring element against the contact pin.
  • the passage should preferably lie completely outside the contour of the conductor insertion opening which has the conductor insertion opening in the transition to the conductor connection space.
  • Connectors usually have a defined minimum permissible nominal cross section of an electrical conductor as well as a defined maximum permissible nominal cross section. It is advantageous if the width of the leading to the conductor connection space passage of the contact pin insertion direction is smaller than that defined for the connector minimum allowable nominal cross section of the electrical conductor, so that the insulation-free end, leaving a free space for a contact pin with a part of its cross section can dip into the passage if no contact pin is inserted.
  • the passage is adapted to the contact pin so that the contact pin dips into the passageway with a conductor contact portion facing the conductor connection space, thereby contacting the insulation-free end of the electrical conductor with the conductor contact portion and displacing it against the spring force of the associated spring element.
  • the passage thus has at least one region with a passage width which is smaller than the minimum permissible nominal cross section of the electrical conductor, ie the smallest permissible diameter of the insulation-free end of an electrical conductor.
  • the contact pin in turn, however, is shaped so that it can be inserted under displacement of the insulation-free end of the electrical conductor against the spring force in the contact pin insertion and thereby contacts the insulation-free end of the electrical conductor with its conductor contact portion.
  • the conductor contact portion of the contact pin may for example be a protrusion, which is adapted in its width to the minimum permissible nominal cross-section of the electrical conductor dependent minimum passage width of the passage in order to at least partially submerge in this passage can.
  • the contact pin insertion opening does not have a constant width over its entire depth, but has a reduced width compared with the width of the conductor connection space, but if the passage of the contact pin insertion opening to the conductor connection space has a region with a conductor connection space from the conductor connection space
  • Direction pin-insertion opening has decreasing passage width. This allows the insulation-free end of the electrical conductor to dive relatively far into the passageway of the pin insertion opening without obstructing it.
  • the contact pin insertion opening is namely kept free by the minimum passage width, which is arranged away from the conductor connection space due to the tapering to the contact pin insertion opening contour.
  • the passage adjacent the conductor terminal space may have a part-circularly tapered portion so that the passage of the contact pin insertion opening provides a displacement space outside the plane of symmetry of the conductor insertion opening into which a part of a conventional circular cross-section electrical conductor can dive into it.
  • the radius of the part-circular cross-section portion of the passage is adapted to a defined nominal cross-section of an electrical conductor for the connector and this preferably corresponds.
  • the passage of the at least one contact pin insertion opening has an area tapering from the contact pin insertion opening in the direction of the conductor connection space.
  • the taper can be continuous (eg conical) or discontinuous (eg with a heel).
  • the contour of the contact pin should then also be adapted to the tapered shape of the passage so that the contact portion of the contact pin for the insulation-free end of the electrical conductor is narrower than the contact pin in the region of the contact pin insertion opening outside the passage.
  • a contact pin insertion opening is associated with two opposing conductor insertion openings, which open into a respective conductor connection space.
  • the associated male pin insertion opening has two opposing passages which open into a respective conductor insertion opening.
  • the contact pin insertion opening is positioned centrally between the two opposing conductor connection spaces and conductor insertion openings.
  • the insulating housing in the region of the at least one contact pin insertion opening in each case has an insulating material grip for fixing the position of the head end of a contact pin inserted into the contact pin insertion opening.
  • the contact pin can be guided by means of the insulating material grip in the contact pin insertion opening and held in a defined position.
  • the clamping end of the spring element in the relaxed state does not project into the contact pin insertion opening without an electrical conductor inserted into the associated conductor insertion opening.
  • the immersion depth of an electrical conductor is reduced in the passage and also prevents the contact pin insertion opening is blocked by the insulation-free end of the electrical conductor.
  • the clamping end of the spring element abuts in the relaxed state without an inserted into the associated conductor insertion opening electrical conductor to a transverse wall of the conductor connection space adjacent to the contact pin insertion opening.
  • All of the above-mentioned embodiments of connectors can also additionally have an intermediate wall which can be displaced into the passage, z. B. by moving or tilting, and is provided for positioning between the contact pin and insulation-free end of the electrical conductor.
  • the intermediate wall should extend at least over the region of the clamping point at which the insulation-free end of the electrical conductor overlaps with the conductor contact section of the contact pin.
  • the intermediate wall extends over the entire length of the passage to the conductor connection space in a direction from the first side of the housing to the second side of the housing.
  • the intermediate wall is advantageous insofar as it reliably prevents the penetration of wires of stranded flexible electrical conductors into the contact pin insertion opening and guides the electrical conductor during the insertion process into the conductor connection space in the direction of its conductor axis. By this guide with the intermediate wall unwanted splicing of individual wires of a stranded flexible conductor is avoided.
  • the partition can be in the insulating z. B. be pivoted hineinschwenkbar with its upper or lower end into the passage. It is also conceivable that the partition with guides that in the pin insertion in or is mounted displaceably on the wall of the insulating material preferably parallel in the direction of the conductor connection space. It is also conceivable that the intermediate wall has stops, for example, by folded-over side edges, which cooperate with adjacent to the passage transverse walls of the conductor connection space and form a stop for limiting the displacement of the intermediate wall in the contact pin insertion into it. In the position largely displaced into the contact pin insertion opening, the stops rest on the transverse wall and prevent further immersion of the intermediate wall into the contact pin insertion opening.
  • Fig. 1 a shows a side sectional view of a first embodiment of a connector 1, which has an insulating housing 2 and a spring element 3, which is arranged in a conductor connection space 4 of the insulating housing 2.
  • a conductor insertion opening 6 extending in the longitudinal direction about a central axis M opens into the conductor connection space 4.
  • a contact pin insertion opening 8 leads with an alignment parallel to the conductor insertion opening 6 into the conductor Insulating 2 in. It can be seen that the extension direction of the conductor insertion opening 6 and the contact pin insertion opening 8 are opposite to each other.
  • the contact pin insertion opening 8 has a passage 9 to the conductor connection space 4 for an electrical conductor in an area above the nip beginning approximately from the end of the funnel-shaped taper of the conductor insertion opening 6 to below the nip to an end stop 10.
  • this passage can at least partially submerge in electrical conductors and a contact pin can also be immersed in the passage 9 from the opposite side to make electrical contact to the insulation-free end of the electrical conductor.
  • an insulating material overlap 11 is provided for fixing the position of a free upper end of an inserted contact pin.
  • Fig. 1 b leaves a section of the connector 1 from Fig. 1 a) also recognizable in cross section. It is clear that the passage 9 is arranged outside the contour of the conductor insertion opening 6 adjacent to the conductor connection space 4 and forms a transition between the contact pin insertion opening 8 and the conductor connection space 4.
  • Fig. 1 c) is a plan view sectional view of the connector Fig. 1 a) and Fig. 1b ) shows. It can be seen that the conductor insertion opening 6 is substantially wider than the contact pin insertion opening 8.
  • the width of the passage 9 increases from the width B 1 of the contact pin insertion opening 8 to the conductor connection space 4 or the conductor insertion opening 6 arranged above it towards.
  • the maximum width of the passage 9 is less than the width B 2 of the conductor connection space 4. This causes the free terminal end 12 of the spring element 3 abuts against the wall of the conductor connection space 4 or the conductor insertion opening 6 merging therein ,
  • Fig. 1 d leaves an embodiment of the connector Fig. 1 a) with a partition Z recognize. It is clear that the intermediate wall Z is slidable into the passage 9 and at its side edges has stops that cooperate with the adjoining the passage 9 transverse walls of the conductor connection space 4 to form a stop so that the intermediate wall Z upon contact of the attacks can not further dive into the contact pin insertion opening 8 on the transverse wall.
  • Partitions in the illustrated or another, z. B. pivotable or slidably mounted in guides of the contact pin insertion can not only be used in conjunction with in the Fig. 1 a) shown type of connector can be used, but are used for all conceivable embodiments of connectors with passage in the contact pin insertion and reduced width of the contact pin insertion.
  • the intermediate wall Z is an improved management of the insulation-free ends of electrical conductors preferably reaches into a conductor catching pocket in the lower end of the conductor connection space 4, which avoids undesired splicing of individual wires and immersion of individual wires of stranded flexible electrical conductors far into the contact pin insertion opening.
  • Fig. 1 e can be seen a side sectional view of the connector 1 with partition Z. It becomes clear that the intermediate wall Z dips into the passage 9 and is placed between the insulation-free end 14 of the electrical conductor 13 and the contact pin 15.
  • the intermediate wall Z has, for example, defined contact areas K 1 and K 2 for contacting the insulation-free end 14 of the electrical conductor 13 on one side and the contact pin 15 on the other side.
  • the contact areas K 1 and K 2 in the form of protrusions ensure a concentration of the contact force of the spring element 3 on the reduced contact surfaces and thus for an improvement of the contact reliability and the current transition.
  • FIG. 1 f leaves a top view sectional view of a modified connector 1 from Fig. 1 a) recognize, in which the passage 9 has a constant passage width B 1 . The passage 9 then merges with an abrupt change in width in the wider conductor connection space 4.
  • Fig. 2 a leaves a cross-sectional view of the connector 1 from Fig. 1 a) recognize with an inserted electrical conductor 13, whose stripped free end 14 protrudes into the conductor connection space 4. It is clear that the free terminal end 12 of the spring element 3 is now shifted away from the contact pin insertion opening 8.
  • the insulation-free end 14 is pressed parallel over its entire length in the passage 9 of the contact pin insertion opening 8. Due to the passage width of the passage 9, which is smaller than the minimum allowable diameter of an electrical conductor for the specific embodiment of the connector 1, it is prevented that the insulation-free end 14 of the electrical conductor 13 further into the contact pin insertion opening 8 immersed and this locked so that no contact pin can be inserted from the second side of the housing 7 in the pin insertion opening 8.
  • Fig. 2 b leaves a cutaway view of the connector Fig. 2 a) detect. It is even clearer that the electrical conductor 13 together with the insulation-free end 14 from the contour of the conductor insertion opening 6 about the central axis M of the conductor insertion opening 6 out in the passage 9 of the contact pin insertion opening 8 outside of the conductor insertion. 6 is moved into.
  • Fig. 2c lets recognize this fact again in the plan view sectional view. It is clear that the insulation-free end 14 of the electrical conductor 13 with a circular segment in the passage 9 and an adjoining part of the contact pin insertion opening 8 dives in, without blocking the contact pin insertion opening 8. The reason for this is that the maximum passage width of the passage 9 is smaller than the diameter of the insulation-free end 14 of the electrical conductor 13 and thus the chord of the circular segment undergoes a defined limitation.
  • the minimum passage width of the passage 9 is structurally adapted to the respectively for the connector 1 provided minimum allowable cross-section of an electrical conductor 13 so that the minimum passage width is smaller than the minimum allowable cross-section of an electrical conductor. In this way, it is prevented that the electrical conductor 13 completely dive into the contact pin insertion opening 8 and the contact pin insertion opening 8 can block.
  • Fig. 3 a) is a cross-sectional view of the connector 1 from Fig. 1a ) and 2a ) with the difference that both an electrical conductor 13 in a conductor insertion opening 6, and a contact pin 15 is inserted into the contact pin insertion opening 8.
  • the contact pin 15 has in the upper region a conductor contact portion 16 in the form of a Prevailing so that the protrusion protrudes slightly from the passage 9 in the conductor connection space 4.
  • the clamping force of the clamping end 12 of the spring element 3 is concentrated on the insulation-free end 14 of the electrical conductor 13 and seen in the power flow opposite protrusion (conductor contact portion 16) of the contact pin 15.
  • the contact pin 15 is fixed in position at its upper, tapered end by means of the insulating material handle 11.
  • Another fixing protrusion 17 in the lower region is applied to the end stop 10 in order to fix the contact pin 15 and in particular to prevent it from tilting.
  • Fig. 3 b leaves a cutaway view of the connector 1 on Fig. 3 a) Detect in the area of the clamping point. It is clear that the insulation-free end 14 of the electrical conductor 13 is displaced against the clamping force of the spring element 3 from the passage 9 out in the conductor connection space 4. It can also be seen that the insulation-free end 14 of the electrical conductor 13 in the region of the clamping point formed by the protrusion (conductor contact portion 16) of the contact pin 15 is not applied to the insulating material of the insulating 2, so that the spring force through the insulation-free end 14 of the electric Ladder 13 is concentrated on the protrusion of the contact pin 15. With the help of the protrusion, a defined small contact surface is created, on which the spring force of the spring element 3 is concentrated. In this way, a good electrical contact with the lowest possible contact resistance and the highest current carrying capacity is ensured.
  • Fig. 3c leaves a top view sectional view of the connector 1 from Fig. 3 a) with inserted electrical conductor 13 and pin 15 recognize. From this presentation it becomes even clearer how the insulation-free end 14 of the electrical conductor 13 is pressed by the contact pin 15 against the spring force of the spring element 3 in the direction of the conductor connection space 4. This has the consequence that the insulation-free end 14 of the electrical conductor 13 is immersed in the passage 9 only with a reduced circular segment, without touching the walls of the passage 9. The spring force of the spring element 3 is thus concentrated without cushioning by insulating material through the insulation-free end 14 on the contact pin 15.
  • Fig. 4 a leaves a cross-sectional view of the connector 1 from the Fig. 1 to 3 detect.
  • only one contact pin 15 is now inserted into the contact pin insertion opening.
  • the eg parallel to the central axis M of the conductor insertion opening 6 extending contact plane of the protrusion adjacent directly to the contact plane of the free terminal end 12 of the spring element 3, which occupies it in the relaxed position without plugged electrical conductor 13.
  • the spring element 3 is displaced as much as possible when inserting an electrical conductor 13 through the insulation-free end 14 of the electrical conductor 13. This results in an optimized clamping force of the spring element 3, which exerts the spring element 3 via the clamping end 12 on the electrical conductor 13 and the protrusion of the contact pin 15.
  • Fig. 5 lets recognize a perspective sectional view of the connector 1 described above.
  • the funnel-shaped design of the conductor insertion openings 6 recognizable, which pass into a conductor connection space 4.
  • the funnel-shaped conductor insertion opening 6 ends in a square contour with one of the width of the conductor connection space 4 corresponding width. Adjacent thereto, the width decreases toward the contact pin insertion opening 8, wherein a tapered passage 9 is provided adjacent to the transverse wall of the conductor connection space 4, to which the clamping end 12 of the spring element 3 abuts.
  • the connector 1 alternately and mirror image offset from one another has conductor insertion openings 6 with associated conductor connection space 4 and spring element 3 in order to be able to connect a maximum number of electrical conductors and assigned contact pins in the smallest possible space.
  • Fig. 6 lets a perspective view of the connector 1 in plan view in section through the upper part of the insulating material 2 recognize. It is even more evident that the passage 9 is arranged outside the (eg symmetrical) contour of the square region of the conductor insertion opening 6, in order to enable a displacement of the electrical conductor over an axial length around the nip partially into the passage 9.
  • Fig. 7 a has a cutaway view of a second embodiment of a connector 1 recognize.
  • a conductor contact portion 16 in the form of a protrusion 16 of the contact pin 15 in the passage 9 of the conductor insertion opening emerges. 8 into it.
  • the protrusion has a reduced width as compared to the adjacent center of the contact pin 15 and preferably tapered, as in the plan view sectional view of Fig. 7b) is shown.
  • the contact pin insertion opening 8 tapers in the direction of the conductor connection space 4 to the region in which the passage 9 widens again.
  • the portion of the passageway 9 tapering from the contact pin insertion opening 8 to the conductor connection space 4 conically converges, while the adjoining part of the passage 9 widens in a part-circular manner to the conductor connection space 4.
  • Fig. 8 a shows the second embodiment of the connector 1 in cross-sectional view with inserted electrical conductor 13 and pin 15 recognize. It becomes clear here that the protrusion tapering towards the free end displaces the insulation-free end 14 of the electrical conductor 13 against the spring force of the spring element 3 from the passage 9 into the conductor connection space 4. In this way, the electrical conductor 13 is displaced parallel about its longitudinal axis from the passage 9 into the conductor insertion opening 6 into it.
  • the conically tapering part of the passage 9 running from the contact pin insertion opening 8 in the direction of the conductor connection space 4 has the advantage that the passage width of the passage 9 can be further reduced without the cross section of the contact pin 15 having to be reduced too much.
  • Fig. 8b leaves a cutaway view of the connector 1 from Fig. 8 a) with inserted electrical conductor 13 and pin 15 recognize. From this and from the plan view sectional view Fig. 8c) becomes clear how the insulation-free end 14 of the electrical conductor with the help of the tapered protrusion of the contact pin 15 at least partially out of the passage 9 out against the spring force of the spring element 3 is pressed into the conductor connection space 4. The clamping force is thereby concentrated on the narrow contact end of the tapered protrusion (conductor contact portion 16), which has an improved current transition result.
  • Fig. 9 a leaves the connector 1 off Fig. 8 a) detect with plugged in electrical conductor 13 without pin. It is clear how the electrical conductor 13 is moved over its axial length with a segment partially into the passage 9 of the conductor insertion opening 8. The displacement takes place approximately parallel to the conductor axis or central axis M of the conductor insertion opening 6 by the spring force of the spring element 3.
  • Fig. 9b lets this be better understood by means of a plan view sectional view. In this case, the tapered and then part-circular contour of the passage 9 becomes clear.
  • the Fig. 10) to 18 ) show different embodiments of contact pins 15 in the plan view, side view, rear view and perspective view.
  • the protrusion 16 forming the conductor contact portion 16 has the same width as the contact pin 15 itself. The same applies to the fixing protrusion 17 in the lower area.
  • the contact pin 15 is slightly tapered in the lower end to be inserted into a hole in a circuit board and soldered there.
  • the upper free end of the contact pin 15 is also tapered and rounded in the upper end. In this way, a partially in the contact pin insertion opening 8 projecting electrical conductor 13 from the contact pin insertion opening 8 are pushed out.
  • the embodiment of the contact pin 15 already described above in connection with the second embodiment of the connector 1 can be seen with the convexity tapering towards the free contact end (conductor contact portion 16). Also, the fixing protrusion 17 is shaped correspondingly tapered.
  • Fig. 12 leaves one with the Fig. 10 ) comparable embodiment of the contact pin 15 recognize, in which the fixing protrusion 17 is not rounded, but rectangular. This improves u. U. jamming of the contact pin 15 in the insulating material of the insulating material. 2
  • Fig. 13 reveals an embodiment of a contact pin 15, in which, starting from the tapered free end of the contact pin 15, the protrusion over the entire length of the associated passage 9 in the insulating housing corresponds.
  • Fig. 14 reveals a cylindrical embodiment of a contact pin 15, which tapers conically in the upper end.
  • the passage 9 of the contact pin insertion opening 8 would also have to taper in the shape of a partial circle to the conductor connection space 4.
  • Fig. 15 can also recognize a cylindrical embodiment of a contact pin 15, the upper free end tapers triangular in position for fixing the position.
  • the free top end may be rounded.
  • Fig. 16 lets one of the Fig. 15 ) Comparable embodiment of a contact pin 15 recognize, which is oval in cross section, however. In this way, the narrow side can dive into the passage 9 of the contact pin insertion opening 8 and provide a terminal point for the adjacent electrical conductor 13.
  • Fig. 17 lets one to Fig. 16 ) recognize similar embodiment of a contact pin 15, wherein the narrow edges, however, are trapezoidal tapered.
  • Fig. 18 reveals an embodiment of a contact pin 15, in which a triangular tapering towards the free end of the end connects to a rectangular section. Below the rectangular portion of the contact pin 15 runs for insertion and soldering in a circuit board approximately in cross section square.
  • the symmetrical embodiments of the contact pins 15 according to Fig. 14) to 18 ) are particularly suitable for connector 1, in which two or possibly more conductor connection spaces 4 are provided for a contact pin 15, wherein the contact pin 15 is positioned centrally between the conductor connection spaces 4 and conductor connection spaces 4 serves as a common contact pin 15.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP10007730.4A 2009-07-31 2010-07-26 Steckverbinder Active EP2280453B1 (de)

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DE102009035716B4 (de) 2014-03-27
TWI520446B (zh) 2016-02-01
CN101989703A (zh) 2011-03-23
CN101989703B (zh) 2015-04-15
US7988504B2 (en) 2011-08-02
RU2528171C2 (ru) 2014-09-10
JP2011034972A (ja) 2011-02-17
TW201112510A (en) 2011-04-01
DE102009035716A1 (de) 2011-02-03
EP2280453A1 (de) 2011-02-02
RU2010132193A (ru) 2012-02-10
ES2523244T3 (es) 2014-11-24
BRPI1003257B1 (pt) 2019-10-15
JP5539809B2 (ja) 2014-07-02
US20110028050A1 (en) 2011-02-03
BRPI1003257A2 (pt) 2012-04-10

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