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
  • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
  • H01R13/42—Securing in a demountable manner
  • H01R13/436—Securing a plurality of contact members by one locking piece or operation

Definitions

• the invention relates to an electrical external connector with an additional locking device for a multipole, in particular waterproof electrical coupling.
• the locking slide can only be inserted when all contact elements have been inserted into the contact chambers. In the meantime, care must be taken to ensure that the contact elements do not slip out of the chambers or slip in the chambers during assembly, so that the assembly of the plug is difficult.
• the locking slide also does not allow the contact elements to be inserted into the chambers when the locking slide is inserted, which also complicates the assembly of the plug.
• the required undercut in the housing must be from below, i.e. from the so-called mating face, are formed by slide cores.
• an outer housing with the precisely desired mating face was pushed on in order to avoid incorrect connections between the contact pins to be inserted into the connector housing and the contact elements used in the connector housing.
• the slide core opening is covered by the base plate of the surrounding housing. This effect and the external additional locking is achieved by the base plate with locking arms.
• the object of the invention is to provide an additional locking device for connector housings with contact chambers that are rotated with respect to one another or arranged in series with one another, which at the same time conceals the slide core opening in the case of square plug openings and which also enables the plug contacts to be inserted after the additional locking device has been installed.
• the outer connector 1 made of plastic essentially has the connector housing 2, the connector seal 3 and the additional locking element 4.
• the one-piece connector housing shown in particular in FIGS. 2 to 5 consists of the sealing chamber housing part 5 and the contact chamber housing part 6, which are lined up in the plugging direction 7 (FIG. 4), with a circumferential, outwardly projecting handle and / or plug limiting strip on the outside in the transition area 8 is provided.
• cylindrical chambers 9 are introduced for receiving individual line seals 10, which - as shown - can have a corrugated outer contour 11 (FIG. 3).
• the edges 12a of the chambers 12 are arranged at an angle to the plane 16 in the housing part 6.
• a smooth ring surface 17 is arranged on which the known plug seal 3 from e.g. Rubber is stored, which is pushed against the lower surface of the bar 8.
• the housing part 6 is continued via a recessed narrow annular edge 18, with rectangular recesses 19 arranged next to one another creating a passage to each chamber 12.
• the recesses 19 begin in the area of the ring edge 18 and end at a considerable distance from the bottom wall 14.
• a U-shaped locking spring clip 20 which is known per se and points in the plug-in direction 7 and overlaps the plug seal 3, is formed, which interacts with counter-locking means, not shown.
• the additional locking element 4 has a base plate 21 with the mating face of the plug, with two front edges 22 and two longitudinal edges 23. On the longitudinal edges 23 are connected vertically and parallel, spaced apart, elastically resilient locking tongues 24 are provided, which have locking lugs 25 in the upper free end region.
• the locking lugs 25 point to the interior 26 of the additional locking element 4. Under each locking lug 25, a plug opening 27 is arranged in the base plate 21 with an finding funnel pointing outwards.
• the locking lugs 25 point obliquely away from the locking tongues 24 in the exemplary embodiment shown, which corresponds to the pivoted position of the chambers 12.
• the additional locking element 4 is placed against the bottom wall 14 of the outer connector housing, so that the plug openings 27 are aligned with the plug openings 15 of the outer connector housing, the slide core openings 15a are covered and the detents 25 engage in the recesses 19. As a result, the additional locking element 4 is immovably mounted on the outer connector housing.
• the locking lugs 25 have a special spatial shape such that a locking edge 29 is oriented at right angles inwards towards the interior 26, which is longer than the thickness of the wall of a chamber 12, so that the edge 29 projects into the interior of a chamber 12 and as Additional locking edge can act. It can engage behind a corresponding edge of an electrical connector or contact element (not shown) inserted into the chamber 12 and thereby effect the additional locking.
• the locking lugs 25 have at the free end a run-on slope 30 and a subsequent abutment edge 31, the Run-up slope 30, as known per se, makes it easier to slide the additional locking element onto the outer connector housing and the abutment edge 31 can abut against the upper edge of a recess 19, so that the edges 29 and 31 can ensure the immovable mounting of the additional locking element 4, viewed in the direction of insertion 7 .
• the length of a locking lug 25 thus corresponds to the length of a recess 19.
• the locking lugs 25 end with a rounded tip 32, which protrudes from the wall of the outer connector housing and can serve to pivot the respective spring tongue 24 back by hand or with a tool, around a contact element to be able to remove from a contact chamber 12. At the same time, the plug seal 3 is supported on the tips 32 so that it cannot slip.
• contact elements can be inserted into the external connector equipped with the additional locking element, the spring tongues 24 evading and being able to spring back behind a latching or locking edge of the contact element.
• the loading of the chambers 12 with contact elements is simple and can be done by machine. Each contact element is locked individually and stored captively after insertion. It has thus been possible with simple means to create a water-sealed external connector, in particular, with a special additional locking device that requires little assembly effort and also enables additional locking device if square or rectangular chambers in the cross section are arranged in the housing rotated about their longitudinal axis with respect to the housing walls.

Landscapes

• Connector Housings Or Holding Contact Members (AREA)
• Connecting Device With Holders (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6828213

Family Applications (1)

Country Status (5)

Families Citing this family (3)

Family Cites Families (16)

• 1988
  • 1988-09-22 DE DE8812014U patent/DE8812014U1/de not_active Expired
• 1989
  • 1989-07-22 ES ES89113515T patent/ES2016777A4/es active Pending
  • 1989-07-22 EP EP19890113515 patent/EP0359938A3/fr not_active Withdrawn
  • 1989-08-18 US US07/395,641 patent/US4986770A/en not_active Expired - Fee Related
  • 1989-09-22 JP JP1247863A patent/JPH02135673A/ja active Pending

Also Published As

Similar Documents

Legal Events