WO2017030573A1 - Connecteur électrique à verrouillage par poussée - Google Patents

Connecteur électrique à verrouillage par poussée Download PDF

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Publication number
WO2017030573A1
WO2017030573A1 PCT/US2015/045811 US2015045811W WO2017030573A1 WO 2017030573 A1 WO2017030573 A1 WO 2017030573A1 US 2015045811 W US2015045811 W US 2015045811W WO 2017030573 A1 WO2017030573 A1 WO 2017030573A1
Authority
WO
WIPO (PCT)
Prior art keywords
male
insulator insert
female
disposed
connector member
Prior art date
Application number
PCT/US2015/045811
Other languages
English (en)
Inventor
Keith A. Jozwik
Joseph F. Murphy
Original Assignee
Woodhead Industries, Inc.
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 Woodhead Industries, Inc. filed Critical Woodhead Industries, Inc.
Priority to PCT/US2015/045811 priority Critical patent/WO2017030573A1/fr
Priority to JP2018508229A priority patent/JP6533010B2/ja
Priority to EP15901847.2A priority patent/EP3338327A4/fr
Priority to CA2995197A priority patent/CA2995197A1/fr
Publication of WO2017030573A1 publication Critical patent/WO2017030573A1/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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/622—Screw-ring or screw-casing
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing
    • H01R13/6273—Latching means integral with the housing comprising two latching arms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
    • 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
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • 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
    • H01R13/64—Means for preventing incorrect coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/86—Parallel contacts arranged about a common axis

Definitions

  • This invention relates generally to quick connect/disconnect, multi-pin electrical connectors, and is particularly directed to a push-lock electrical connector incorporating metal threads, a high strength, secure seal, and an anti-vibration capability.
  • Inline electrical connectors tend to be of two basic types: the screw- type connector or the bayonet-type connector.
  • the screw-type connector incorporates mating threads on the plug and socket portions of the connector and requires rotation of one or the other to connect the sets of electrical cables together in a sealed manner.
  • Connection and disconnection are labor- intensive and require the application of a predetermined fastening torque to achieve an environmental seal or overcoming of this torque in disconnecting the pair of connector members.
  • the fastening torque may undergo unintended loosening when the connector is subject to vibration forces resulting in loss of the connector seal and interruption of the pin and socket connections.
  • Connection and disconnection of the two threaded connector members is also relatively slow and time consuming.
  • the bayonet-type connection is easily and quickly formed or disconnected.
  • the coupled members in a bayonet connection are more easily separated and the connection broken than in a threaded connector.
  • the bayonet connection is less adapted for the formation of high strength, tight seals than the threaded connection.
  • the threaded and bayonet approaches are mutually exclusive, as one cannot be connected to the other which, in some cases, is inefficient and wasteful.
  • One approach in this area utilizes plastic segmented threads that wear after a few couplings and uncouplings of the pair of connector members or lose their ability to "spring back" because the elastic limit of the plastic has been reached.
  • the present invention addresses and overcomes these limitations by providing a push-type connection resulting in full thread engagement between the two connecting members that use a standard thread.
  • Yet another object of the present invention is to provide a vibration-resistant connection between the male and female connecting members of a push-type electrical connector.
  • a further object is to provide quick and easy push-type engagement between the male and female connecting members of an inline, multi-pin electrical connector, while securely maintaining the two connecting members coupled together by means of a threaded type connecting arrangement.
  • a still further object of the present invention is to provide a sealed compartment for the contact elements of an electrical connector where the strength of the seal can be easily achieved regardless of the torque used to mate the connector members.
  • This invention is directed to an inline electrical connector adapted for quick, locked connection by merely pushing the male and female connecting members together in establishing a threaded, sealed connection between the two connecting members.
  • the push- lock electrical connector further includes an anti-vibration feature to prevent relative rotational movement between the male and female connecting members to ensure that electrical continuity is maintained.
  • the push-lock electrical connector also incorporates metal threads rather than plastic threads to increase reliability and connector operating lifetime.
  • the push-lock connector is fully compatible with traditional threaded electrical connectors such as of the M 12 threaded type.
  • An additional related embodiment of this invention contemplates an electrical connector having mating male and female connecting members, where either connecting member includes an elastic member which allows that connecting member to receive and to securely couple to the other connecting member in a secure, electrically insulated and electromagnetically shielded manner.
  • the male connector member includes a cylindrical male insulator insert having an outer peripheral lateral wall forming an open cylindrical space within which are plural elongated, spaced conductive pins.
  • the mating female connecting member includes plural spaced sockets each adapted to receive a respective connector pin when the female connecting member is inserted in male member's open cylindrical space in establishing electrical contact between the two connector members.
  • the lateral wall of the male member forming the open cylindrical space which is adapted to receive the female connector member in a tight-fitting manner includes at least one slot therein extending longitudinally from the male member's outer end inwardly Disposed on the inner surface of the male member's lateral wall and spanning the at least one slot therein is a thin layer of an elastic insulating material, such as comprised of silicone, which allows for outward lateral expansion of the male member's lateral wall, permitting the male member to receive and engage in a tight-fitting manner mating female members having a range of diameters.
  • an elastic insulating material such as comprised of silicone
  • the stretchable material may also be incorporated in the female connecting member to accommodate a range of diameter sizes and tolerances in mating male members, by elastically undergoing radially inward compression when a conductive pin-bearing male connector member is inserted over the female member's socket-bearing end portion.
  • the elastic layer may be disposed about the female connector member or the female connector member may be substantially comprised of the elastic electrically insulating material.
  • rendering the elastic insulating layer conductive allows the layer to also function as an electromagnetic interference (EMI) shield in the electrical connector.
  • EMI electromagnetic interference
  • Fig. 1 is a longitudinal sectional view of the push-lock electrical connector of the present invention mated, or engaged, with a traditional M12 threaded type electrical connector;
  • Fig. 2 is a sectional view of the push-lock electrical connector taken along site line B- B in Fig. 1 ;
  • FIG. 3 is a sectional view of the push-lock electrical connector taken along site line A- A in Fig. 1;
  • Fig. 4 is a side elevation view of the male connecting member of the push-lock electrical connector
  • FIGs. 5 and 6 are perspective views of the end portion of the male connecting member of the push-lock electrical connector
  • Figs. 7 and 8 are respectively end-on and side elevation views of the metal cylinder with resilient tabs incorporated in the inventive push-lock electrical connector;
  • Fig. 9 is a plan view of the metal cylinder with resilient tabs incorporated in the inventive push-lock electrical connector prior to being formed into a cylindrical shape;
  • Figs. 10 and 11 are respectively perspective and transverse sectional views of the male insulator incorporated in the push-lock electrical connector of the present invention, where the sectional view of Fig. 11 is taken along site line c-c in Fig. 10;
  • Fig. 12 is a perspective view of metal cylinder with anti-vibration resilient tabs incorporated in the inventive push-lock electrical connector
  • Fig. 13 is a transverse sectional view of the combination of the outer metal cylinder with resilient tabs taken along site line D-D in Fig. 12 and the inner male insulator taken along site line C-C in Fig. 10, which combination provides anti-vibration protection in the push-lock electrical connector of the present invention;
  • Fig. 14 is a longitudinal sectional view of a second embodiment of the inventive push- lock electrical connector mated to a traditional M12 threaded type electrical connector;
  • Fig. 15 is a lateral plan view of a portion of the male push-type electrical connector illustrated in Fig. 14;
  • Fig. 16 is a perspective view of the male connector portion of the push-lock electrical connector illustrated in Fig. 14;
  • Fig. 17 is a perspective view of the metal cylinder employed in the embodiment of the invention shown in Fig. 14;
  • Fig. 18 is a lateral plan view of the metal cylinder illustrated in Fig. 17;
  • Fig. 19 is an end-on view of the metal cylinder illustrated in Fig. 17;
  • FIG. 20 is another perspective view of the metal cylinder employed in the male electrical connector of Fig. 14;
  • FIG. 21 is a perspective view of the male outer coupling sleeve used with the metal cylinder illustrated in Figs 17-20;
  • Fig. 22 is a longitudinal sectional view of the combination of the metal cylinder and male outer coupling sleeve incorporated in the male electrical connector of Fig. 14;
  • Figs. 23 and 24 are respectively longitudinal sectional and end-on views of the tapered ring used in the electrical connector of Fig. 14;
  • Fig. 25 is a longitudinal sectional view of another embodiment of the male insulator insert used in the electrical connector of Fig. 14, where the male insulator insert is provided with a molded seal on an inner surface thereof;
  • Fig. 26 is a side elevation view of a push-lock electrical connector incorporating an insulator insert in the form of a thin layer of elastic material incorporated between the mated male and female connecting members in accordance with another embodiment of the present invention
  • Fig. 27 is a longitudinal sectional view of the push lock electrical connector shown in Fig. 26;
  • Fig. 28 is a perspective view of the inventive male insulator insert incorporating a pair of spaced slots disposed in a lateral wall thereof;
  • Fig. 29 is a side elevation view of the male insulator insert shown in Fig. 28;
  • Fig. 30 is a perspective longitudinal sectional view of the male insulator insert shown in Fig. 28 having disposed on a portion thereof a thin layer of elastic insulating material in accordance with this embodiment of the present invention
  • Fig. 31 is an end-on view of the inventive male insulator insert illustrating the pair of end slots therein;
  • Fig. 32 is a longitudinal sectional view of the male insulator insert taken along site line A-A in Fig. 31 illustrating a layer of electrically insulating material disposed thereon in accordance with this embodiment of the present invention
  • Figs. 33 and 34 illustrate different perspective views of the elastic electrically insulating layer applied to the open end portion of the male insulator insert in accordance with one embodiment of the present invention.
  • Fig. 35 is a longitudinal sectional view of another embodiment of the present invention, wherein the female insulator insert is adapted to receive in a tight fitting manner male insulator inserts having a range of diameters;
  • Fig. 36 is a transverse sectional view of an elastic electrically insulating layer, or ring, for use in the female insulator insert illustrated in Fig. 35;
  • Fig. 37 is a longitudinal sectional view of the inventive female insulator insert used in the embodiment of the invention illustrated in Fig. 35;
  • Figs. 38 and 39 are different perspective views of the elastic electrically insulating insert shown in Fig. 36 which is adapted for use with the female insulator insert of Fig. 37.
  • Push-lock electrical connector 10 includes a male connecting member 12 and a female connecting member 14, with the male connecting member including plural spaced male pins 24a-24d and the female connecting member 14 including plural spaced sockets 26a-26d, each adapted for receiving a respective male pin in a tight-fitting manner as shown in Fig. 1.
  • Male connecting member 12 further includes a male overmold 16 coupled on an end thereof to a male insulator insert 21.
  • Plural electrical conductors, or wires, are disposed in the first male overmold 16, with each of the wires connected to a respective one of the male pins 24a-24d.
  • Each of the male pins 24a-24d is inserted through a respective slot within the male insulator 21 and extends into an open recess in the outer end of the male insulator.
  • a metal cylinder 28 Coaxially aligned with and disposed between adjacent portions of an outer male coupling sleeve 20 and the inner male insulator insert 21 is a metal cylinder 28.
  • Female connecting member 14 includes a female overmold 18 attached on an end portion thereof to a female insulator insert 23. Disposed about and engaging an outer surface of the female insulator insert 23 is a female outer coupling sleeve 22 having threads 32 located on an inner surface thereof. Plural spaced female sockets 26a-26d are attached to an end of the female overmold 18 and are disposed in and extend through respective slots within the female insulator insert 23. Electrical leads, or wires, which are not shown in the figure for simplicity, are each connected to a respective one of the female sockets 26a-26d.
  • Each of the female sockets 26a-26d is adapted to receive in tight-fitting engagement a respective one of the male pins 24a-24d to establish electrical continuity between the plural leads in the male connecting member 12 and the plural leads in the female connecting member 14.
  • An O-ring 34 is disposed between and in contact with female insulator 23 and an end portion of the male insulator 21 to establish a sealed environment for the male pins and female sockets.
  • Male and female insulator inserts 21 and 22 are preferably comprised of plastic, or another material having high dielectric properties.
  • metal cylinder 28 is shown as having four resilient tabs 30a-30d disposed in a spaced manner about its outer periphery, although the present invention is not limited to this number of resilient tabs on the metal cylinder.
  • Each of the four resilient tabs 30a-30d is formed by stamping or otherwise deforming the lateral wall of the metal cylinder 28, with each of the resilient tabs extending outwardly in a direction away from the open end portion of male connecting member 12.
  • each of the four tabs 30a-30d allows the male connecting member 12 to be inserted, or "pushed", into the female connecting member 14, whereupon the distal ends of each of the four resilient tabs 30a-30d engage the inner threads 32 of the female outer coupling sleeve 22 as shown in Fig. 1. With the distal ends of each of the four resilient tabs 30a-30d engaging a portion of the inner threads 32 of the female outer coupling sleeve 22, the male and female connecting members 12, 14 are securely coupled together.
  • the resilience of the tabs 30a-30d allows their respective distal ends to be displaced radially inwardly upon contacting the crest portions of the threads, with the resilience of the tabs then urging the distal end of each of the tabs radially outward so as to engage an immediately adjacent thread portion during insertion of the male connecting member 12 into the female connecting member 14.
  • Male connecting member 12 is fully inserted in female connecting member 14 when the distal end portion of male insulator 21 engages O-ring 34 to form the above-described seal between the two connecting members for sealing the space in which the male pins 24a-24d and the female sockets 26a-26d are disposed.
  • first and second seals 36a and 36b Disposed on the inner surface of male insulator 21 are the aforementioned first and second seals 36a and 36b as shown in Figs. 1, 5 and 6. Seals 36a and 36b also provide a seal for the space within the push-lock electrical connector 10 in which the connected male pins 24a-24d and female sockets 26a-26d are located. In fact, the first and second seals 36a, 36b eliminate the need for O-ring 34 in providing a sealed environment for the connected male pins 24a-24d and female sockets 26a-26d.
  • first and second seals 36a, 36b disposed on an inner surface of male insulator 21
  • the aforementioned seals can also be positioned on the outer surface of the female insulator 23 so as to engage an inner surface of male insulator 21 in forming a seal.
  • two seals 36a, 36b are disclosed, the invention is not limited to two seals. For example, a higher number of seals could be provided between the male insulator 21 and female insulator 23 to increase the strength of the seal. Conversely, a single seal could be used where the application calls for a seal of reduced strength.
  • the illustrated and described embodiment of the invention includes a metal cylinder 28 with resilient tabs 30a-30d disposed in the male connecting member 12 for engaging threads 32 in the female outer coupling sleeve 22, the metal cylinder could alternatively be positioned within the female connecting member 14 for engaging inner threads provided for on the male insulator 21.
  • the present invention also contemplates the use of a pair of metal cylinders each having a respective set of resilient tabs, with one metal cylinder disposed within the male connecting member 12 and the other metal cylinder disposed within the female connecting member 14.
  • the metal cylinder disposed within the male connecting member 12 would securely engage an inner portion of the female connecting member 14, while the metal cylinder in the female connecting member would securely engage an inner portion of the male connecting member.
  • On the two metal cylinders could be disposed in mutual engagement to provide a secure, sealed coupling between the male and female connecting members 12, 14. In this latter embodiment, neither the male connecting member 12 nor the female connecting member 14 would necessarily include inner threads.
  • a plan view of metal cylinder 28 in a flat configuration which is the form of the metal cylinder as originally manufactured.
  • Metal cylinder 28 is then subjected to a rolling process to provide its cylindrical shape.
  • Formed within metal cylinder 28 are the aforementioned four resilient tabs 30a-30d.
  • the resilient tabs 30a-30d each form a portion of a thread and are adapted for engaging a threaded surface characterized with a given pitch, or slope
  • the pitch of the array of the four resilient tabs is given by the ratio A/B.
  • the pitch of each of the individual resilient tabs is given by the ratio a/b as shown in the encircled portion of Fig. 9.
  • Fig. 10 there is shown a perspective view of male insulator insert 21.
  • Fig. 11 illustrates a sectional view of the male insulator insert 21 taken along site line C-C in Fig. 10.
  • the male insulator insert 21 has an undulating outer surface 42 having a series of alternating upraised portions, or peaks, 42a and sunken portions, or valleys, 42b.
  • Fig. 12 is a perspective view of metal cylinder 28 illustrating a pair of resilient tabs 30a and 30c disposed in a spaced manner about the outer periphery of the metal cylinder. Also formed in the lateral surface of metal cylinder 28 are first and second inwardly extending arms 45a and 45b. Arms 45a and 45b may be formed in metal cylinder 28 by conventional means such as by stamping similar to the manner in which the resilient tabs 30a-30d are formed in the lateral wall of the metal cylinder.
  • the distal ends of the inwardly extending resilient arms 45a and 45b are adapted to engage respective sunken portions 42b disposed on opposed sides of an adjacent upraised portion 42a in the outer surface 42 of the male insulator 2 las shown in Fig. 13.
  • the first and second inwardly extending arms 45a and 45b prevent relative rotation between the outer metal cylinder 28 and the inner male insulator 21 caused by vibration, and thus provide an anti-rotation function in preventing a change in the relative positions of these two connector components caused by environmental vibrations or physical shock experienced by the mated connector components.
  • male insulator 21 includes an inwardly extending rib 40 on its inner periphery adapted for insertion in a generally U-shaped recessed portion 23a within female insulator 23. With inner rib 40 disposed within recessed portion 23a of female insulator 23, the four male pins 24a-24d are respectively aligned with the four female sockets 26a-26d during assembly of the connector to ensure proper electrical connections are made within the mated male and female connecting members 12, 14.
  • FIG. 14 there is illustrated a longitudinal sectional view of another embodiment of a push-lock electrical connector 50 in accordance with the principles of the present invention.
  • Connector elements common to the first embodiment of the present invention shown in FIG. 1 and the second embodiment shown in FIG. 14 are provided with the same element identifying number.
  • Components of the push-lock electrical connector 50 shown in FIG. 14 which are different than corresponding components in the push-lock electrical connector 10 shown in FIG. 1 are provided with different element identifying numbers.
  • metal cylinder 52 in the push-lock electrical connector 50 embodiment shown in FIG. 14 differs from the corresponding metal cylinder 28 in the embodiment shown in FIG. 1.
  • the male insulator insert 64 in the push-lock electrical connector 50 embodiment shown in FIG. 14 also differs from the male insulator insert 21 in the embodiment shown in FIG. 1 as described in the following paragraphs.
  • Metal cylinder 52 includes four generally linearly slots 54a-54d disposed in a spaced manner about its lateral, cylindrical surface. The space between each pair of adjacent slots defines a respective resilient arm of the metal cylinder 52.
  • adjacent slots 54a and 54b define a first resilient arm 56a
  • adjacent slots 54b and 54c define a second resilient arm 56b
  • adjacent slots 54c and 54d define a third resilient arm 56c
  • adjacent slots 54d and 54a define a fourth resilient arm 56d.
  • Disposed adjacent a respective distal end of each of the four resilient arms 56a-56d is a respective linear projection on its outer surface.
  • a first linear projection 58a is disposed on the outer surface and adjacent to the distal end of the fourth resilient arm 56d, while a second linear projection 58b is disposed on the outer surface of the first resilient arm 56a adjacent its distal end.
  • a third linear projection 58c is disposed on the outer surface of the second resilient arm 56b on its outer surface and adjacent to its distal end.
  • a fourth linear projection 58d is disposed on the outer surface of the third resilient arm 56c adjacent its distal end.
  • the four linear projections 58a-58d are each disposed on a respective outer surface of the first through fourth resilient arms 56a-56d at an inclined angle relative to a plane orthogonal to the longitudinal axis X-X as shown in FIG. 18.
  • Inclined angle a equals the inclined angle of the threads 32 disposed on the inner surface of female outer coupling sleeve 22.
  • the four linear projections 58a-58d are in common alignment about the outer periphery of a metal cylinder 52 and are disposed at the aforementioned inclined angle a. Engagement of two opposed linear projections 58a and 58c with the inner threads 32 of female outer coupling sleeve 22 is shown in the sectional view of Fig. 14.
  • the perspective view of Fig. 16 of male insulator insert 64 shows first and second molded seals 36a and 36b disposed on the inner surface of the male insulator sleeve so as to engage an outer concentric surface of female insulator insert 23 as in the previously described embodiment.
  • metal cylinder 52 includes a pair of end tabs 60a and 60b which are disposed on respective opposed end portions of the metal cylinder and extend outwardly along the length of the cylinder.
  • FIG. 21 is a perspective view of the male outer coupling sleeve 62 incorporated in the second embodiment of the push-lock electrical connector 50 shown in Fig. 14.
  • Male outer coupling sleeve 62 includes a cylindrical aperture, or slot, 66 extending therethrough. Disposed on opposed end portions of cylindrical aperture 66 are first and second opposed slots 68a and 68b.
  • each of the opposed slots 68a, 68b within the male outer coupling sleeve is adapted to receive a respective one of the opposed end tabs 60a, 60b on the end of the metal cylinder.
  • Each of the end tabs 60a, 60b is adapted for outward displacement so as to be positioned within and engage a respective one of the opposed slots 68a and 68b for securely connecting these two components together.
  • conventional means such as weldments may also be used to securely connect these two components.
  • metal cylinder 52 and male outer coupling sleeve 62 are securely coupled together so that manual engagement and rotational or linear displacement of the male outer coupling sleeve results in a corresponding rotational or linear displacement of the inner metal cylinder attached thereto.
  • a tapered ring 72 disposed about and securely attached to the outer surface of male insulator insert 64 adjacent to one end of the male insulator insert. That end of the male insulator insert 64 includes an enlarged circular flange 64a disposed about the cylindrical opening at the end of the male insulator insert.
  • a longitudinal sectional view of the tapered ring 72 is shown in FIG. 23, while an axial, or end- on, view of the tapered ring is shown in Fig. 24.
  • Tapered ring 72 includes a circular aperture 72a extending through the ring and an outer tapered surface 72b, and it is attached to the outer surface of male insulator insert 64 by conventional means such as weldments.
  • tapered ring 72 does not need to be a separate part, but could be integrated into male insulator insert 64 by conventional manufacturing methods like molding or die-casting.
  • metal cylinder 52 is disposed in cylindrical spaces formed between an outer surface of male insulator insert 64 and respective inner surfaces of male outer coupling sleeve 20 and female outer sleeve coupling 22. As described above, metal cylinder 52 is fixedly attached to the inner cylindrical surface of male outer coupling sleeve 20. In assembling push-lock electrical connector 50, metal cylinder 52 is inserted into the cylindrical spaces disposed about male insulator insert 64 as described above. When male connecting member 12 is fully inserted into female connecting member 14 and male outer coupling sleeve 20 is displaced leftward in the direction of arrow 80 shown in Fig.
  • metal cylinder 52 engages the tapered surface 72b of circular ring 72 and is urged radially outward toward threads 32 disposed on the inner surface of female outer coupling sleeve 22.
  • Disposed on the outer surface of metal cylinder 52 adjacent its distal end are the aforementioned linear projections 58a-58d, where only two of these projections 58a and 58c are shown in the sectional view of Fig. 14.
  • metal cylinder 52 With the distal end of metal cylinder 52 deflected radially outward by tapered ring 72, the metal cylinder's outer projections 58a-58d are displaced radially outward and into engagement with the inner threads 32 of female outer coupling sleeve 22, as shown for the case of linear projections 58a and 58c in Fig. 14. In this manner, all of the linear projections 58a-58d disposed on the outer lateral surface of metal cylinder 52 are inserted into the inner threads 32 of female outer coupling sleeve 22.
  • a short coiled spring 82 Disposed about male insulator insert 64 and in end-abutting contact with male overmold 16 and male outer coupling sleeve 20 is a short coiled spring 82 which urges male outer coupling sleeve leftward in the direction of arrow 80 so as to maintain the distal end of metal cylinder 52 in contact with tapered ring 72 so that the metal cylinder's distal end remains outwardly biased so as to maintain the metal cylinder's linear projections 58a-58d in secure engagement with the inner threads 52 of female outer coupling sleeve 22.
  • FIG. 25 there is shown a longitudinal sectional view of another embodiment of a male insulator insert 76, wherein the open, cylindrical end of the male insulator insert is provided with an enlarged end flange 76a and a tapered portion 76b which are formed integrally with the male insulator insert.
  • tapered portion 76b of the male insulator insert 76 shown in Fig. 25 replaces the tapered ring 72 described above and illustrated in Figs. 14, 23 and 24.
  • a molded flexible seal 78 Disposed on the inner surface of the open end portion of the male insulator insert 76 is a molded flexible seal 78 which adheres to the inner surface of the male insulator insert and includes spaced upraised ring-like portions 78a and 78b which form seals between the male insulator insert 76 and the female insulator insert which is shown as element 23 in Fig. 14. Molded flexible seal 78 is placed on, adheres to, and conforms with the contours of the inner surface of the open end portion of male insulator insert 76.
  • FIGs. 26 and 27 there are respectively shown side elevation and longitudinal sectional views of a push lock electrical connector 90 incorporating an improved male insulator insert 100 with an elastic electrically insulating layer 126 in accordance with this embodiment of the present invention.
  • Figs. 28 and 29 are respectively perspective and side elevation views of the inventive male insulator insert 100.
  • Fig. 30 is a perspective sectional view of the inventive male insulator insert incorporating the elastic insulating layer therein.
  • Figs 31 and 32 are respectively end-on and longitudinal sectional views of the inventive male insulator insert 100 in accordance with this embodiment of the present invention.
  • Figs. 33 and 34 are different perspective views of the inventive elastic insulating layer for incorporation in a male insulator insert for use in a push lock electrical connector in accordance with the present invention.
  • the inventive push lock electrical connector 90 includes a male connecting member 92 and a female connecting member 94.
  • Male connecting member 92 includes an outer male coupling sleeve 93
  • female connecting member 94 includes an outer female coupling sleeve 95.
  • Disposed within the outer male coupling sleeve 93 is a male insulator insert 100 in accordance with the present invention.
  • Disposed within the outer female coupling sleeve 95 is a female insulator insert 102 which also may be configured in accordance with the present invention in another embodiment.
  • the use of an elastic electrically insulating material may be incorporated in either the male insulator insert 100 or in the female insulator insert 102, but is not incorporated in both simultaneously.
  • the elastic electrically insulating layer disposed in the male insulator insert 100 is shown as element 126 in Fig. 27 and is described in detail in the following paragraphs.
  • Male insulator insert 100 is securely attached to a male overmold 98 by means of first and second recessed portions 101a and 101b disposed on the outer end portion of the male insulator insert.
  • female insulator insert 102 is securely attached to a female overmold 98 by means of third and fourth recessed portions 102a and 102b.
  • male insulator insert 100 is generally cylindrical and is provided with plural receptacles, or slots, three of which are shown as elements 118a, 118b and 118c and are adapted to receive and retain first, second and third conductive pins 106a, 106b and 106c, respectively.
  • male insulator insert 100 is provided with a generally cylindrical body 103 having the aforementioned spaced recessed portions 101a, 101b at a first outer end thereof, and an enlarged end flange 107 on an inner end of the cylindrical body. Disposed within male insulator insert 100 is a generally circular base 113 having five spaced apertures therein, where three of these apertures are shown as elements 115a-l 15c in Fig. 28. Each of the five apertures is adapted to receive and support a respective conductive pin as shown for three male pins 106a- 106c in the sectional view of Fig. 27.
  • male insulator insert 100 there is shown an axially positioned center aperture 115b and three of four outer apertures 115a, 115c, 115d, where the fifth outer aperture is not shown in any of the illustrated views for simplicity.
  • a metal cylinder 110 Disposed about and attached to the outer lateral wall of male insulator insert's cylindrical body 103 is a metal cylinder 110 as shown in Fig. 27.
  • outer threads Disposed on a portion of the outer surface of metal cylinder 110 are outer threads which are adapted to securely engage inner threads on the inner surface of outer female coupling sleeve 95, where the inter- engaging threads are shown as elements 122 in Fig. 27. It is in this manner that the male connecting member 92 is securely attached to female connecting member 94.
  • Female insulator insert 102 is inserted through a circular aperture within outer female coupling sleeve 95 in a tight-fitting, secure manner, which allows for free rotation of outer female coupling sleeve about the outer surface of female insulator insert 102.
  • female insulator insert 102 inserted in the open end portion of the male insulator insert 100 as shown in Fig. 27, rotation of the outer female coupling sleeve 95 about the metal cylinder 110, with their mutually engaging inter-locking threads 122, allows for secure coupling between male connecting member 92 and female connecting member 94.
  • An outer lateral portion of female insulator insert 102 is provided with a flange 102a extending radially outward from the female insulator insert's outer wall.
  • Flange 102a is adapted to engage and compress a generally circular O-ring seal 130 disposed between this flange and the aforementioned end flange 107 disposed on the inner edge portion of the male insulator insert 100 as shown in Fig. 27. Further rotation of the outer female coupling sleeve 95 relative to the male insulator insert 100 further compresses O-ring seal 130 in forming a tighter seal between the male and female connecting members 92 and 94.
  • female insulator insert 102 is adapted for tight fitting engagement with the inner surface of the open end portion of the male insulator insert 100.
  • Female insulator insert 102 is provided with plural spaced female sockets, where three of the sockets are shown as elements 124a, 124b and 124c in Fig. 27.
  • socket 124a is adapted to receive conductive pin 106a in a tight- fitting manner
  • female sockets 124b and 124c are adapted to receive conductive pins 106b and 106c, respectively. It is in this manner that the male and female connecting members 92, 94 are electrically connected to each other.
  • the cylindrical body portion 103 of male insulator insert 100 is provided in accordance with the present invention with at least one elongated, linear slot.
  • first and second elongated, linear slots 105a and 105b are shown disposed on opposed portions of the male insulator insert's cylindrical body.
  • Each of the first and second elongated slots 105a, 105b extends inwardly from the end flange 107 toward the opposite end of the cylindrical body 103 to, and slightly beyond, base member 113 which is attached to the inner surface of the cylindrical body.
  • a non-continuous, generally circular seal flange 120 is also disposed on the inner surface of cylindrical body 103 and aligned generally parallel to the opposed ends of the cylindrical body.
  • Seal flange 120 is discontinuous because of its intersection with the first and second slots 105a, 105b within the cylindrical body 103.
  • seal flange 120 is comprised of two spaced sections each forming generally a one-half circle within cylindrical body 103, with adjacent ends of the two half circles separated by either the first slot 105a or the second slot 105b.
  • the seal flange 120 is preferably formed integrally with the cylindrical body 103 such as in a molding process. Seal flange 120 forms a circumferential seal with the outer surface of the female insulator insert 102 disposed within the open end portion of male insulator insert 100.
  • first and second slots 105a, 105b within the end of the insulator insert's cylindrical body 103 allow the two semi- cylindrical portions of the cylindrical body formed by the two slots to flex outwardly to facilitate insertion of a female insulator insert 102 into the open end portion of the male insulator insert 100.
  • This flexure allows the male insulator 100 to receive female insulator inserts having a wide range of diameters. Specified tolerances in the manufacture of mating members of push lock connectors result in a range of values for various connector components, such as the male and female insulator inserts. These variations in size over an acceptable, specified range are present even in individual manufacturing runs and arise because of the precision limits inherent in the manufacturing process.
  • male insulator insert 100 Incorporating a tolerance range in size for various connector parts and components facilitates manufacture and assembly of the connectors and substantially reduces the costs of manufacture and assembly. While the cylindrical body 103 of male insulator insert 100 is described and illustrated as having first and second spaced slots 105a, 105b, the present invention is not limited to only a pair of slots, as the present invention may have additional elongated, linear slots to form additional flexible peripheral sections of the cylindrical body depending upon the type of material that the connector is comprised of and the extent of flexibility desired in the male and female insulator inserts 100. As stated above, male insulator insert 100 may also be provided with a single elongated, linear slot.
  • an elastic electrically insulating layer 126 is applied to the inner surface of the open end of the male insulator insert's cylindrical body in accordance with this embodiment of the present invention.
  • Elastic insulating layer 126 is deposited on the inner surface of the open end portion of male insulator insert 100 which terminates in end flange 107 as shown in Figs. 27, 30, 31 and 32.
  • Elastic insulating layer 106 is deposited by conventional means such as spraying, dipping or other conventional means.
  • the present invention is formed in a two mold process where a first mold is used to form the male insulated insert 100, with the second mold process involving the positioning of an insulating material in the space between a second mold's outer surface and the male insulator insert's inner surface.
  • Elastic insulating layer 126 includes an outer angled enlarged portion 126a adapted to intimately engage and be securely attached to an inner portion of the insulator insert's end flange 107.
  • Elastic insulating layer 126 further includes an enlarged intermediate circular portion 126c extending radially inward so as to securely engage and attach to the seal flange 120 disposed on the inner surface of male insulator insert 100.
  • the inner circular portion 126c of elastic insulating layer 126 serves not only to electrically insulate the electrically conductive members of the push-lock connector 90, but also serves as a seal between the male and female insulator inserts 100, 102.
  • Elastic insulating layer 126 further includes an inner flange 126d adapted for positioning within an annular slot within an inner portion of the male insulator insert's cylindrical body 103 to form an inner seal between the male insulator insert 100 and the female insulator insert 102 disposed within the open end of the male insulator insert.
  • the male and female insulator inserts 100, 102 are comprised of a semi-rigid thermoplastic material such as of polycarbonate plastic, while the elastic electrically insulating layer 126 is preferably comprised of a thermoplastic, or thermosetting, elastomer.
  • first and second elongated, linear flanges 126e and 126f Disposed on an outer portion of elastic insulating layer 126 and positioned within the first and second slots 105a and 105b of the male insulator insert 100 are first and second elongated, linear flanges 126e and 126f as shown in the perspective views of Figs. 33 and 34.
  • First and second slot-spanning flanges 126e and 126f provide an insulating layer bridging adjacent portions of the male insulator insert 100 which form the first and second slots 105a and 105b within the cylindrical body 103 of the male insulator insert.
  • the elasticity of the insulating layer 126 allows it to continue to span the first and second slots 105a and 105b as they increase in width when a female insulating insert 102 larger in its outer diameter than the male insulator insert's inner diameter is inserted in the open end portion of the male insulator insert.
  • electrical insulation is maintained around the entire periphery of the open end portion of the male insulator insert 100 which engages and encloses the female insulator insert 102.
  • the diameter of the open end portion of the male insulator insert assumes its original reduced diameter as the facing lateral portions of the cylindrical body 103 assume their original relative positions.
  • the elastic electrically insulating layer 126 is preferably comprised of silicone, but may be of virtually any electrically insulating plastic elastomer composition, such as polyurethane or a low durometer epoxy.
  • the thickness of each of the elastic insulating layer's first and second slot- spanning flanges 126e, 126f is preferably on the order of the thickness of the male insulator insert 100, which is typically in the range of .007-.008 inch. While the elastic insulating layer 126 has been described primarily in terms of being an electrical insulator, it may also be comprised of a material capable of providing electromagnetic interference (EMI) protection.
  • EMI electromagnetic interference
  • Conductivity of the elastic electrically insulating layer 126 may be provided by introducing electrically conductive particles such as of carbon powder in the elastic insulating layer to provide an EMI shielding capability. This approach for providing electrical insulating and/or EMI shielding protection could also be used between the male and female connecting members in a coaxially connector.
  • FIG. 35 there is shown a longitudinal sectional view of another embodiment of a push lock connector 138 in accordance with the present invention.
  • components of push lock connector 38 which are the same as, and perform the same function as, a corresponding component in the push lock connector 90 illustrated in Figs. 26- 34 have been provided with the same identifying numbers.
  • the difference between the embodiment of the invention illustrated in Figs. 26-34 and the embodiment now described is in the male and female insulator inserts as well as in the elastic electrically insulating layer attached to an insulator insert.
  • the female insulator insert 102 is provided with, and is attached to, the elastic electrically insulating layer, or ring, 140.
  • the embodiment of the push lock connector 138 shown in Figs. 35-39 and described in the following paragraphs is also provided with male and female connecting members 92, 94, outer male and female coupling sleeves 93and 95, and male and female overmolds 96 and 98.
  • the elastic electrically insulating layer 140 is in the form of a cylindrical ring having an inner aperture 140b as shown in Figs. 36, 38 and 39.
  • the elastic electrically ring 140 is adapted for tight-fitting positioning within an annular slot, or recess, 142 on the outer surface of the female insulator insert 102 as shown in Fig. 37.
  • the inner portion of the outer surface of the elastic electrically insulating ring 140 is provided with a radially, outwardly extending portion 140a which is adapted for tight-fitting engagement with the inner surface of the male insulator insert 132, as shown in Fig. 35.
  • the compressible and elastic composition of the electrically insulating ring 140 allows for the use of male insulator inserts 132 having a range of inner diameters, where the range arises from manufacturing tolerances in producing the various components of the push lock connector 138.
  • the elastic electrically insulating material of ring 140 is preferably comprised of a material such as silicone, a polyurethane or a low durometer epoxy, or any electrically insulating material capable of undergoing compression upon the application of an inwardly directed radial force, and is also capable of expanding outwardly to assume its original shape and size upon the removal of the radial compressive force.
  • the thickness of the elastic electrically insulating ring 140 is also similar to the previously described elastic electrically insulating layer attached to the male insulator insert, i.e., on the order or .007-.008 inch.
  • Elastic electrically insulating ring 140 is also provided with a curvilinear recessed portion 140c as shown in Figs. 38 and 39, which is adapted for tight-fitting engagement with an inwardly extending alignment rib disposed on the inner surface of female insulator insert 134.
  • the female insulator insert's alignment rib is linearly aligned with the inwardly extending alignment rib 109 of the previously described male insulator insert 100, which is illustrated in Figs. 28 and 31, to facilitate connection of the male and female connecting members.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

Selon l'invention, un connecteur multibroche à alignement comprend des éléments de connecteurs mâle et femelle cylindriques que l'on connecte électriquement ensemble en poussant les deux éléments l'un contre l'autre. L'élément de connecteur mâle ou l'élément de connecteur femelle possède un cylindre métallique disposé autour de ses broches ou prises conductrices, qui sont adaptées pour un engagement mutuel, tandis que l'autre élément de connecteur comporte des filets internes. Le cylindre métallique comprend plusieurs bras ou languettes espacés, élastiques, disposés sur sa périphérie externe et poussés de manière radiale vers l'extérieur et mis en prise avec les filets de l'autre élément afin de raccorder les deux éléments de connecteur. Des joints d'étanchéité coaxiaux sont disposés entre et en contact avec les deux éléments en tant que joints toriques compressibles. La périphérie externe de l'isolant interne cylindrique de l'élément comporte des crêtes et des creux alternés, alors que le cylindre métallique de l'autre élément comporte des bras élastiques s'étendant vers l'intérieur qui sont conçus pour se positionner dans un creux opposé respectif afin d'empêcher un désaccouplement induit par des vibrations.
PCT/US2015/045811 2015-08-19 2015-08-19 Connecteur électrique à verrouillage par poussée WO2017030573A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/US2015/045811 WO2017030573A1 (fr) 2015-08-19 2015-08-19 Connecteur électrique à verrouillage par poussée
JP2018508229A JP6533010B2 (ja) 2015-08-19 2015-08-19 プッシュロック電気コネクタ
EP15901847.2A EP3338327A4 (fr) 2015-08-19 2015-08-19 Connecteur électrique à verrouillage par poussée
CA2995197A CA2995197A1 (fr) 2015-08-19 2015-08-19 Connecteur electrique a verrouillage par poussee

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2015/045811 WO2017030573A1 (fr) 2015-08-19 2015-08-19 Connecteur électrique à verrouillage par poussée

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WO2017030573A1 true WO2017030573A1 (fr) 2017-02-23

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EP (1) EP3338327A4 (fr)
JP (1) JP6533010B2 (fr)
CA (1) CA2995197A1 (fr)
WO (1) WO2017030573A1 (fr)

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Publication number Priority date Publication date Assignee Title
US10944211B1 (en) 2019-11-15 2021-03-09 Kunshan Amphenol Zhengri Electronics Co., Ltd. Connector with quick positioning structure
WO2022053098A1 (fr) * 2020-09-09 2022-03-17 Phoenix Contact Gmbh & Co. Kg Système de connecteur enfichable doté de connexion modulaire à déconnexion rapide
US11374351B2 (en) 2018-04-06 2022-06-28 Fischer Connectors Holding S.A. Multipolar connector
US11616324B2 (en) 2018-04-06 2023-03-28 Conextivity Group Sa Multipolar connector

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US6280229B1 (en) * 1999-09-03 2001-08-28 Harting Kgaa Plug connector
US20060051999A1 (en) * 2004-06-04 2006-03-09 Frederic Allemann Connector element with quick screw connection
US20070293076A1 (en) * 2006-06-03 2007-12-20 Stefan Fehling Electrical connector having plug and socket components
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US20140134871A1 (en) * 2012-10-19 2014-05-15 Woodhead Industries, Inc. Push lock electrical connector

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EP1311035A3 (fr) * 2001-11-09 2004-01-02 Escha Bauelemente GmbH Connecteur avec collerette d'encliquetage
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US6280229B1 (en) * 1999-09-03 2001-08-28 Harting Kgaa Plug connector
US20060051999A1 (en) * 2004-06-04 2006-03-09 Frederic Allemann Connector element with quick screw connection
US20070293076A1 (en) * 2006-06-03 2007-12-20 Stefan Fehling Electrical connector having plug and socket components
US20100120282A1 (en) * 2008-11-12 2010-05-13 Tyco Electronics Corporation Push-pull connector
US20140134871A1 (en) * 2012-10-19 2014-05-15 Woodhead Industries, Inc. Push lock electrical connector

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11374351B2 (en) 2018-04-06 2022-06-28 Fischer Connectors Holding S.A. Multipolar connector
US11616324B2 (en) 2018-04-06 2023-03-28 Conextivity Group Sa Multipolar connector
US11616320B2 (en) 2018-04-06 2023-03-28 Conextivity Group Sa Multipolar connector
US10944211B1 (en) 2019-11-15 2021-03-09 Kunshan Amphenol Zhengri Electronics Co., Ltd. Connector with quick positioning structure
EP3823105A1 (fr) * 2019-11-15 2021-05-19 Kunshan Amphenol Zhengri Electronics Co., Ltd. Connecteur comportant une structure de positionnement rapide
WO2022053098A1 (fr) * 2020-09-09 2022-03-17 Phoenix Contact Gmbh & Co. Kg Système de connecteur enfichable doté de connexion modulaire à déconnexion rapide
BE1028592B1 (de) * 2020-09-09 2022-04-04 Phoenix Contact Gmbh & Co Steckverbindersystem mit modularer Schnelltrennverbindung

Also Published As

Publication number Publication date
EP3338327A4 (fr) 2019-08-21
EP3338327A1 (fr) 2018-06-27
CA2995197A1 (fr) 2017-02-23
JP6533010B2 (ja) 2019-06-19
JP2018526781A (ja) 2018-09-13

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