Automotive door-to-body electrical connector

Abstract: An electrical connector assembly is comprised of an insulating housing (2) for fixed mounting within an automotive body behind panel walls (20). A mating connector (4) has a housing portion (30) and a peripheral shroud (32). The shroud has integral latches 860) which retain the shroud and housing (30) together, and the shroud includes latches (46) which retain the shroud (32) to the panel (20). Actuating lugs (14) are positioned on the front of the housing portion (30) and are profiled for receipt within a groove (16) on a camming slide (8). The latches (60) hold the shroud (32) and housing (30) together during the actuation of the lugs (14) and the camming slide (16). When the latches (46) are locked behind the panel wall (20b), the shroud inner surface (38) contacts the panel wall (20b), whereby the latches (60) break free of the corresponding lugs (70) on the housing (30). Continued actuation of the U-shaped camming slide (8) moves the connector housing (30) into fully locked position, leaving the shroud positioned against the wall (20b).

Description: The subject invention relates to an electrical connector assembly including complementary actuating members positioned on first and second electrical connectors for making the electrical engagement between the two connectors, according to the preamble of claim 1 as it is, for example, disclosed in GB 2 239 566 A. It is quite common in automotive applications to provide electrical connectors within the pillar posts or in the frame section where one connector member is fixed within the frame, and a second connector member carries electrical cable into the door, to operate electric devices from the driver's or passenger's door. Such electronics would include electric window openers, electric mirrors, electric door locks, and the like. The cable which extends into the door must be weather protected as this cable is exposed to the exterior elements upon opening the door, as this cable is the electrical "hinge" between the car body and the door. It is typical then that the connector which provides cabling into the door carries a corrugated sealing member or boot in surrounding relationship to the cable and extends into an opening in the door. In previous designs of such automotive connectors, the connector which extends into the door is separated from the sealing boot, by pulling the sealing boot rearwardly, and the connector is first positioned in place through an opening in the car body and into a first position aligning the two mating connectors, but not providing full electrical connection between the two connectors. The insulating boot is then moved relative to the first connector and is snapped into engagement with the panel opening into the car body. Subsequently an actuating member between the two connectors is activated bringing the two connector halves into a fully connected position. Given the small distance in which to work between the end of the door and the car body, and due to the stiffness of the cable extending into the door and the number of cables required, this has heretofore been a difficult assembly process. A previously known actuation system is shown in EP 0 273 999-A2. A connector for wiring in a vehicle is disclosed in EP 486 313-A2. The connector comprises: a connector body attached to a terminal end of a harness, engagement projections formed on the periphery of the connector body and engaging with at least the two side edges of a hole in a vehicle panel. The peripherally extending shroud moves into a final abutting position against the panel. It is therefore an object of the invention to provide a connector assembly offering an easier assembly method than the previous mentioned connector system described in EP 273 999-A2. It is a further object of the invention to provide a connector assembly whereby the actuation provided between the connector housings also moves the sealing boot into sealing engagement with the car body. The objects of the invention were accomplished by providing a panel mounted electrical connector assembly with the features of claim 1. The second connector is comprised of a housing member and a peripherally extending shroud, the housing member carrying a plurality of electrical terminals for engagement with the mating contacts of the first connector. The housing member is profiled for receipt within the opening and has complementary actuating members adjacent to the front of the housing for interaction with the first connector, while the peripherally extending shroud remains exterior to the opening adjacent to the panel. The housing member and the shroud member have first cooperating latching mechanisms retaining them together, and the shroud member has second latches profiled for engagement with the panel opening to retain the shroud of the panel. The latches are profiled such that the retaining forces of the first latches retain the housing and shroud together during the activation of the complementary actuating members, until the second latch member is latched to the panel, whereby continued activation of the actuating members causes the first latches to release the housing from the shroud moving the second connector housing independently into connection with the first connector. The detailed description of the preferred embodiment of the invention will now be described with relation to the drawing figures, where: Figure 1 is a side view in partial section showing the first and second connector members of the assembly poised for electrical engagement; Figure 2 shows the beginning actuation between the two connector halves showing the latches on the peripheral shroud member beginning to deflect; Figure 3 shows the peripheral shroud member fully positioned against the panel opening; Figure 4 shows the connector assembly fully inserted; Figure 5 shows a cross-sectional view through lines 5-5 of Figure 1; Figure 6 shows a cross-sectional view similar to that of Figure 5 although in the position coinciding to that of Figure 2; Figure 7 is a cross-sectional view similar to that of Figure 1 coinciding with the position shown in Figure 3; Figure 8 is a cross-sectional view similar to that of Figure 5 showing the position coinciding with that of Figure 4; Figure 9 shows an alternative embodiment similar to that of Figure 1 showing a peripheral seal integrally connected to the boot member; Figure 10 is a view similar to that of Figure 9 showing the connector assemblies in fully engaged position; Figure 11 shows the latching assembly between the shroud and the connector housing in greater detail; and Figure 12 is a view similar to that of Figure 11 showing the connector housing breaking free of the latches which are integral with the shroud member. With reference now to Figure 1, an electrical connector system is shown comprising a fixed connector portion 2 and a moveable connector portion 4 mateable with the connector portion 2. The connector pair comprised of electrical connectors 2 and 4 are generally of the type shown in European Patent Publication 0 273 999, carrying a camming slide and locking lug arrangement. More particularly the electrical connector 2 includes a fixed housing portion 6 and a slidable actuator portion 8 which carries an integral rack portion 10 operable by way of a pinion at 12. Electrical connector 4 includes complementary locking lugs 14 which are co-operable with camming tracks 16 on the connector 2 for moving the electrical connectors 2 and 4 in an axial mating direction relative to each other. In the preferred embodiment of the invention, the camming slide 8 is moveable in the direction A which is parallel to the major axis of the camming slide under influence of the pinion 12 and the integral rack teeth 18. As the rack member 8 is moveable along the transverse axis A, yet is fixed in the axial direction movement of the rack member 8 in the direction A, once the camming lugs 14, located on the sidewalls of the housing 4, are located within the camming tracks 16, actuation of the camming slide 8 moves the connector housings 2 and 4 into mated engagement. In the preferred embodiment of the invention, electrical connector 2 is located on the back side of a mounting wall shown best as 20, comprised of two parallel wall sections 20a and 20b where the wall sections 20a and 20b form an opening at 22 for the receipt of the connector assembly 4. In the preferred embodiment of the invention, the connector assembly 4 is comprised of an electrical connector housing portion 30, an insulating shroud portion 32 and a sealing boot shown generally at 34 which in the preferred embodiment is formed integrally with a flange portion 32. As shown in Figure 1, the flange member 32 includes a flange ring shown generally at 36, and in the preferred embodiment is rectangular in nature including a front surface 38 which can be abutted against the front surface of the panel 20b, and further includes a rear surface shown generally at 40 for carrying the boot member 34 therewith. The shroud member 32 further includes a rectangular peripheral wall at 44 which partially surrounds the electrical connector housing 30 as shown in Figure 1. The shroud member 32 includes three latching members 46 which are integrally moulded with the shroud member 32 being pivotable about a root portion at 48 and being free at side sections 50. In the preferred embodiment one latch portion 46 is integrally formed with an upper side wall 44 whereas as shown best in Figure 1 and 5 two latch members 46 extend integrally with opposite side walls 48. Each of the latching elements 46 includes a camming surface at 52 and a locking surface at 54, as best shown in Figure 5. The shroud member 32 further includes four latching elements shown generally at 60 in Figure 1 extending integrally with the side walls 48 of the shroud member 32. As shown best in Figure 5, the members 60 include cantilever beam portions at 62 which are profiled to be received within the opening 22 of the panel 20. The latch members 60 further include latching projections at 64 including latching surfaces at 66. These latching projections 64 are profiled to engage a complementary surface 70 of a projection 72 located on the side wall 74 of the housing 30. As best shown in Figures 1 and 5, the electrical connector body 30 is terminated to a plurality of insulated conductors (not shown) which extend out of the lead-out section 80 (Figure 1) of the connector body portion 30, and through a corrugated sealing tube connected to the boot 34. These wires would be contained in a strain relief manner to the housing body portion 30 by way of conventional means such as a tie-rap around the member 80. It should be appreciated that the electrical connector housing 30 includes a plurality of electrical terminals electrically terminated to insulated conductors which extend through the lead-out section 80. The electrical terminals positioned in the connector housing 30 are electrically connectable with a plurality of electrical terminals in the housing portion 6 (Figure 1) for making electrical interconnection between the two connection members 2,4. As presented, the electrical housing 30 is snapped to the shroud member 32 as shown in Figures 1 and 5 which maintains the connector housing 30 and the insulating boot portion 34 together. As shown in Figure 1, the connector portion 30 can be positioned with the integral camming lugs 14 into the alignment slots 90 of the camming slots 16 for precise registration between the connector member 30 and the connector member 6. When in this position, the pinion can be rotated which moves the camming lugs 14 along the camming slot portion 92 bringing the connector housing portion 30 and shroud portion 32 inwardly towards the connector member 2. It should be understood that the resistance to overcome the latch member 46 within the double wall backpanel 20 is less than the resistance to overcome the latch arms 60 with their complementary latch members 72. Thus as shown in Figure 2 and 6, as the camming lugs 14 progress into the camming slot portion 92 the latch members 46 begin to resile against the walled portion 20b whereas the latching arms 62 remain fixed to the connector housing portion 30, as shown in Figure 2 or 6 thereby pulling the flange portion 32 inwardly. Continued movement of the pinion portion 12 moves the latch element 46 into locked engagement as shown in Figures 3 and 7. Further rotation of the pinion portion 12 causes the lugs 14 to cooperate with the slot portion 94, and pulls the flange portion 32 against the wall portion 20b, causing the connector portion 30 to break away from the associated latching arms 60, as shown in Figures 8 and 12, to move the connector housing portion 30 into mating relation with the connector housing portion 6. As shown in Figure 4 and 8, the shroud portion 32 is fully seated against the panel portion 20 and the connector housing portion 30 is in full electrical connection with the housing portion 6. It should be appreciated that the camming slot portion 92 is steep relative to the mating face 7 of the housing portion 6. This allows quick axial takeup of the housing 30 with small movement of the U-shaped slide 2. The slot portion 94 however, is relatively shallow as compared to the mating face 7 of housing 6, this providing for increased mechanical advantage to break the latches 60 free from the associated locking lugs 70 on the housing 30, as well as to overcome the insertion force between the two connectors 2,4. With reference now to Figures 9-11, an alternative embodiment is shown which is identical to the embodiment of Figure 1-8, except for peripheral seal 100 formed directly with the boot portion 34. The seal 100 has a lip 102 which engages the wall 20b upon movement of the shroud 36 forwardly, as best shown in Figure 10. In either case, the assemblies as shown herein have overcome the problem existing in the prior art, that is, having to separately handle both the shroud portion as well as the connector portion. Rather, the shroud and connector portion can be assembled to the connector housing 6 independently, and actuation of the camming slide, seats the shroud 32 as well as fully mates the connector housing 30 with the mating component 6.

Claims: A panel mounted electrical connector assembly comprising first and second connectors (2,4), said first and second connectors having complementary actuating members (14,16) for drawing the two connectors (2,4) together, the second connector (4) being insertable through a panel opening (22) into engagement with the first connector (2), the second connector (4) having a plurality of electrical terminals for engagement with mating contacts in the first connector (2), and a housing member (30) being profiled for receipt through the opening (22) and having the complementary actuating member (14) adjacent to the front of the housing (30) for interaction with the first connector (2), -the assembly being characterized in that the second connector (4) has a peripherally extending shroud (32) that is latched with the housing (30), the shroud (32) having latches (46) adapted to latch the shroud (32) to the panel (20) where the shroud (32) remains exterior to the opening (22) adjacent to the panel (20), the actuating members (14,16) causing the shroud (32) with said housing to move into a final abutting position against the panel (20) and latched thereto by the latches (46) of the shroud (32) and in that the actuating members (14) are profiled such that when the housing (4) and shroud (32) are brought into latched engagement with the panel, continued activation of the actuating members (14) causes the housing (4) to break free of the shroud (32) and continue forwardly into connection with the first connector. The connector assembly of claim 1, characterized in that the housing (4) and the shroud (32) have latching members (60, 70) cooperable therebetween, to retain the housing and shroud together. The connector assembly of claim 2, characterized in that the latching members (60, 70) have a greater retaining force than the latches (46). The connector assembly of any of claims 1-3, characterized in that the shroud member (31) includes a peripheral seal (100) facing the panel (20), and the actuation members (14,16) moves the shroud (32) and seal (100) into sealing engagement with said panel (20). The assembly of any of the preceeding claims, characterized in that an insulating boot (34) extends from said shroud (72) rearwardly, thereby sealing cable connected to the terminals in the second connector (4). The assembly of claim 5, characterized in that the seal (100) and insulating boot (34) are integrated into one piece. The assembly of any of claims 1-6, characterized in that the actuating members (14,16) comprise a U-shaped slide (8) moveable transversely relative to the first connector (2), the U-shaped slide (8) carrying camming slots (16) having openings (90) adjacent to forward edges thereof, which receive the complementary actuating member (14) on the first housing. The assembly of claim 7, wherein the complementary actuating member on the first housing (30) is a lug (14) which is receivable in the camming slot (16), whereby, transverse movement of the U-shaped slide (8) moves the housing (30) in the axial direction. The assembly of either of claims 7 or 8, characterized in that the camming slot (16) is separated into separate camming sections, the first section (92) being relatively steep relative to the mating face of the first connector, providing quick movement of the shroud into its locked position, and a second camming section (16) which has a less incline relative to the mating face of the first connector (2), whereby the mechanical advantage of the camming slot is increased to release the first latching members free, and to overcome the insertion force between the first and second connectors.

Inventors: HILSER PETER HEINZ, WOLLER JOSEPH, HILSER, PETER HEINZ, WOLLER, JOSEPH
Applicants: WHITAKER CORP, THE WHITAKER CORPORATION
Application year: 1993
Main classification: H01R13
IPC codes: H01R13