Contact protection system for electrical connectors

• US 4,842,543 A
• Filed: 06/03/1988
• Issued: 06/27/1989
• Est. Priority Date: 06/03/1988
• Status: Expired due to Fees

• Current Assignee: AMP Limited
• Original Assignee: AMP Limited
• Inventors: Davis, Wayne S.
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): Zagrobelny, Stephen
• Application Number:
  US07/202,075
• Time in Patent Office: 389 Days
• Field of Search: 439/350, 439/374, 439/376, 439/378, 439/380, 439/674, 439/677, 439/678, 439/679, 439/680, 439/681, 439/362, 439/712, 439/713, 439/715, 439/901, 439/902, 439/903, 439/904 , 439/906, 439/34, 439/246-248
• US Class Current: 439/378
• CPC Class Codes: H01R 13/645 by exchangeable elements on case or base
• CPC Class Codes: Y10S 439/904 Multipart shell

Abstract

A connector (12) or a pair of connectors (10,12) having a removable post (105) for reception in a channel (51) in an electrical connector (12) wherein the channel (51) has a wider first region (54) and a narrower second region (56), with the narrower second region (56) opening both onto the wider first region (54) and an exterior surface (57) of the connector (12). The post (105) has an elongate body section (106) that is an enlarged retaining portion adapted to be slidingly received in the wider first region (54) of channel (51). Elongate body section (107) has a first portion (108) and an extended portion (110). First portion (108) is typically narrower than extended portion (110), is adjacent to and extends from the enlarged body section (106) and is adapted to extend through the narrower region (56) of channel (51) to interconnect the enlarged body section (106) with extended portion (110). Extended portion (110) is received axially in a passage of a complementary connector (10) when properly aligned therewith for mating of the connectors. Posts (105) function as spacers to prevent contacts of one connector from moving across and impinging against features extending from the mating face of the complementary connector, thereby avoiding damage to the contacts.

Claims

1. A contact protection system for electrical connectors, comprising:

a cable terminating connector having a pair of generally T-shaped slots extending into a lower back shell from a mating face thereof, each of said slots including an enlarged first slot portion and a second slot portion of reduced size extending from said enlarged slot portion to the mating face of said cable terminating connector;

a second connector, said second connector complementary with said cable terminating connector and having a plurality of passageways extending thereinto from a mating face thereof and a plurality of female contacts which are adapted to engage a plurality of male pin contacts of said cable terminating connector when said connectors are mated, said generally T-shaped slots being aligned with said plurality of passageways when said connectors are aligned for mating;

an elongate generally T-shaped post adapted to be removably mounted in each of said T-shaped slots, each of said T-shaped posts includes an enlarged body section of generally rectangular shape adapted to be received within said first enlarged slot portion, and a second elongated body section of generally cylindrical cross-section, said second elongated body section including a first portion adapted to be received within said second slot portion and a second extended portion adapted to extend out of said slot beyond said mating face of said cable terminating connector, said second extended portion being adapted to be received within an aligned passageway in said second connector during mating of said connectors to permit said connectors to be mated, and wherein said posts function as spacers to space the male pin contacts from features extending from the mating face of said second connector to prevent said male pin contacts from moving across and impinging against said features extending from the mating face of said second connector durig mating of said connectors; and

a cover for said lower back shell, said cover having a pair of projections extending from the inner face thereof and adapted to extend into said pair of slots when said cover is mounted to said lower back shell, said projections cooperating with said posts for locking said posts in said slots of said cable terminating connector.

2. The contact protection system of claim 1 wherein said first portion of said elongated body section of said posts is of a slightly reduced diameter for cooperating with said projections on said cover for locking said posts in said cable terminating connector.

3. An electrical connector comprising:

a housing having a channel therein, said channel having a wider first region and a narrower second region, said narrower second region opening onto the wider first region and an exterior surface of the housing; and

a removable alignment and spacer post defining an axis, said post having an enlarged body section and an elongate body section, said enlarged body section adapted to be slidingly received transverse of said axis in the wider first region of said channel to retain said post in said channel, said elongate body section extending from said enlarged body section, through said narrower second region of said channel and beyond said exterior surface of said housing to space contacts in said connector from features proximate a mating face of a complementary connector when improperly aligned therewith, and adapted to be received in passages of said complementary connector when properly aligned therewith for mating.

4. An electrical connector as recited in claim 3, wherein said elongate body section comprises a narrower first portion for passing through said narrower second region of said channel, and an extended portion for extending beyond said exterior surface.

5. An electrical connector as recited in claim 3, further comprising means for securing said post in said channel.

6. An electrical connector as recited in claim 5, wherein said means for securing the post in said channel comprises a protrusion on a cover, said protrusion adapted to extend into said channel to prevent said post from being removed therefrom when said cover is mounted on the connector housing.

7. An electrical connector as recited in claim 3, wherein said wider first region further comprises opposed side walls which are adapted to cooperate with said enlarged body section of said post to prevent rotation of said post within said channel.

8. An electrical connector as recited in claim 3, wherein said first and second channel regions include lower side wall portions which are substantially parallel to one another, said lower side wall portions of said first region cooperating with opposite sides of said enlarged body section of said post to prevent rotation of said post within said channel.

9. An electrical connector as recited in claim 3, wherein said channel includes curved surface portions for assisting in positioning said post in said channel.

10. An electrical connector as recited in claim 3, wherein said connector includes a pair of spaced channels for receiving a pair of posts therein.

11. An electrical connector, comprising:

a housing having a channel therein, said channel having a wider first region and a narrower second region, said narrower second region opening onto the wider first region and an exterior surface of the housing; and

a removable alignment and spacer post defining an axis, said post having an enlarged body section and an elongate body section, said enlarged body section adapted to be slidingly received in the wider first region of said channel, said post axially retained in said channel by engagement of said enlarged body section with opposing wall means of said channel, said elongate body section extending from said enlarged body section, through said narrower second region of said channel and beyond said exterior surface of said housing to space contacts in said connector from features proximate a mating face of a complementary connector when improperly aligned therewith, and adapted to be received in passages of said complementary connector when properly aligned therewith for mating.

12. An electrical connector as recited in claim 11, wherein said elongate body section comprises a narrower first portion for passing through said narrower second region of said channel, and an extended portion for extending beyond said exterior surface.

13. An electrical connector as recited in claim 11, further comprising means for securing said post in said channel.

14. An electrical connector as recited in claim 13, wherein said means for securing the post in said channel comprises a protrusion on a cover, said protrusion adapted to extend into said channel to prevent said post from being removed therefrom when said cover is mounted on the connector housing.

15. An electrical connector as recited in claim 11, wherein said wider first region further comprises opposed side walls which are adapted to cooperate with said enlarged body section of said post to prevent rotation of said post within said channel.

16. An electrical connector as recited in claim 11, wherein said first and second channel regions include lower side wall portions which are substantially parallel to one another, said lower side wall portions of said first region cooperating with opposite sides of said enlarged body section of said post to prevent rotation of said post within said channel.

17. An electrical connector as recited in claim 11, wherein said channel includes curved surface portions for assisting in positioning said post in said channel.

18. An electrical connector as recited in claim 11, wherein said connector includes a pair of spaced channels for receiving a pair of posts therein.