Circuit panel connector, panel system using the connector, and method for making the panel system

• US 4,645,278 A
• Filed: 09/09/1985
• Issued: 02/24/1987
• Est. Priority Date: 09/09/1985
• Status: Expired due to Term

• Current Assignee: Texas Instruments, Inc.
• Original Assignee: Texas Instruments, Inc.
• Inventors: Yevak, Harold M. Jr., Johnson, Larry K., O'Malley, Austin S.
• Primary Examiner(s): Abrams, Neil
• Application Number:
  US06/773,904
• Time in Patent Office: 533 Days
• Field of Search: 339/17 R, 339/17 C, 339/17 CF, 339/17 D, 339/17 T, 339/36, 339/38, 339/44 R, 339/210 R, 339/210 M, 339/275 B, 29/837, 29/838, 29/839, 29/840, 29/843, 29/841, 228/212
• US Class Current: 439/83
• CPC Class Codes: H01R 12/7005 Guiding, mounting, polarizing or locking means; Extractors for printed circuit boards H05K
• CPC Class Codes: H01R 12/716 Coupling device provided on the PCB
• CPC Class Codes: H01R 13/447 Shutter or cover plate
• CPC Class Codes: H05K 3/34 by soldering
• CPC Class Codes: Y10S 439/936 Potting material or coating, e.g. grease, insulative coating, sealant or, adhesive
• CPC Class Codes: Y10T 29/49139 by inserting component lead or terminal into base aperture
• CPC Class Codes: Y10T 29/49146 with encapsulating, e.g., potting, etc.

Abstract

An improved circuit panel connector comprises an electrically insulating body having a plurality of openings extending through the body and has electrical contacts such as screw machine contact assemblies movably mounted in the respective body openings so that posts extend from the openings at one side of the body and terminal entry portions of the contacts are accessible at an opposite side of the body. A plate having a plurality of protuberances formed therein is disposed over the opposite connector body side with the protuberances fitted into the terminal entry portions of the contacts for spacing the movably mounted contacts relative to each other in the connector body openings. A polyimide tape is adhesively and detachably secured to the body over the plate for holding the plate on the body and for sealing the body openings. The contact posts are inserted into corresponding openings in a circuit panel and soldered to circuit paths on the panel. If desired, conformal coating materials are applied to the circuit panel over the connector, the tape serving to exclude such coating materials from the contact members in the connector body openings. The tape is then detached for permitting insertion of component terminals into the terminal entry portions of the connector contacts for mounting the component on the connector.

Claims

1. A connector for mounting a component and for electrically connecting component terminals to circuit paths on a circuit panel comprising an electrically insulating body having a plurality of through openings, and electrical contact members mounted in the respective openings having respective post portions at one end extending from the openings at one side of the body to be soldered to selected circuit paths on the circuit panel and having respective terminal entry portions at an opposite end accessible from an opposite side of the body for receiving and resiliently, electrically engaging respective components terminals, characterized in that the contact members are movably disposed in the respective openings, a plate is disposed over the opposite body side and has a plurality of portions disposed in selected spaced relation to each other engaging the respective contact members for positioning the movable contact members relative to each other at said selected spacing in the body openings and retaining the contact members in the openings with said spacing, and means detachably securing the plate to the body for positioning the contact members relative to each other in the body openings until the contact members are soldered to circuit paths on the circuit panel in said selected spaced relation and for permitting removal of the plate after such soldering to permit insertion of component terminals into terminal entry portions of the respective contact members.

2. A connector for mounting a component and for electrically connecting component terminals to circuit paths on a circuit panel comprising an electrically insulating body having a plurality of openings extending through the body, and electrical contact members mounted in the respective openings having respective post portions at one end extending from the openings at one side of the body to be soldered to selected circuit paths on the circuit panel and having respective terminal entry portions at an opposite end to be accessible from an opposite side of the body for receiving and resiliently, electrically engaging respective components terminals, characterized in that the contact members are movably disposed in the respective openings, a plate having a plurality of protuberances formed in selected spaced relation to each other thereon is disposed in a selected disposition over the opposite body side with the protuberances fitted into respective terminal entry portions of the contact members for positioning and spacing the movably mounted contact members at said selected spacing relative to each other in the body openings, and adhesive means detachably securing the plate to the body in said selected disposition for retaining the contact members with said selected spacing in the body openings until the contact members are soldered to circuit paths on the circuit panel and for permitting subsequent removal of the plate to allow insertion of the component terminals into the terminal entry portions of the respective contact members.

3. A connector according to claim 2 further characterized in that the plate comprises a flat sheet having dimples formed therein to provide said protuberances and the contact members comprise generally cylindrical sleeves disposed around outer perimeters of the terminal entry portions of the contact members, the sleeves being open at one end for receiving component terminals therein, and the protuberances are received in said open sleeve ends to center the movably mounted contact members thereon for facilitating positioning and spacing of the contact members relative to each other in the connector body openings.

4. A connector according to claim 3 further characterized in that the adhesive means comprises a tape adhesively and detachably secured to the body over the plate and over the body openings for sealing the openings at the opposite body side, whereby, when conformal coating materials are applied to a circuit panel over the connector after soldering of the contact members to circuit paths on the circuit panel, the tape excludes the conformal coating materials from the body openings and is adapted to be subsequently removed to permit component terminals to be inserted into the terminal entry portions of the contact members.

5. A connector for mounting an electrical component on a circuit panel and electrically connecting component terminals to circuit paths on the circuit panel comprising an electrically insulating body having a plurality of openings extending through the body, and a plurality of electrical contact members mounted in the respective body openings, the contact members having respective post portions at one end extending from the body openings at one side of the body to be the circuit panel, characterized in that each body opening has a first portion of selected size and has a relatively larger portion adjacent the opposite body side forming a shoulder between said portions of the opening within the opening, the contact members are movably mounted in the openings and have the terminal entry portions thereof disposed in the relatively larger portions of the body openings to engage said shoulders within the openings and each comprise a generally cylindrical sleeve fitted around the outer perimeter of the terminal entry portion of the contact member, the sleeve being open at one end for receiving a component terminal therein, a flat metal plate has a plurality of dimples forming protuberances in selected spaced relation to each other thereon and is disposed over the opposite body side with the protuberances fitted into the open sleeve ends for centering the contact members thereon to space the contact members at said selected spacing relative to each other within the body openings, the plate bearing against the contact members for normally holding the contact members against said shoulders, and a polyimide tape is adhesively and detachably secured to the body over the plate for removably holding the plate in said assembled relation so that the plate member holds the contact members in said selected spacing relative to each other against said shoulders during soldering of the contact members to circuit paths on a circuit panel for precisely locating the contact members on the circuit panel with said selected spacing and securing the connector body in a fixed location on the circuit panel, for sealing the body openings at the opposite connector body side and excluding conformal coating materials from the body openings when such coatings are applied to the circuit panel and connector after soldering the contact members to circuit paths on the circuit panel, and for permitting the tape and plate to be thereafter removed for permitting insertion of components terminals into the terminal entry portions of the contact members for mounting the component on the connector.

6. A connector according to claim 5 further characterized in that an additional, flexible, heat-curable adhesive sealing means is provided on said one body side to be sealingly engaged with a circuit panel during soldering of the contact members to circuit paths on the circuit panel and the sealing means is adapted to be cured during soldering of the contact members to circuit paths on the circuit panel for excluding entry of conformal coating materials from the body openings at said one body side.

7. A circuit panel system for mounting a component and for electrically connecting component terminals in an electrical circuit comprising a circuit panel having circuit paths defined thereon and have a plurality of openings disposed in selected locations relative to the circuit paths, an electrically insulating connector body having a plurality of openings extending through the body aligned with respective openings in the circuit panel, a plurality of electrical contact members movably disposed in the connector body openings in selected spaced relation to each other each having a post portion extending from a connector body opening at one side of the body into a corresponding circuit panel opening and soldered to a selected circuit path on the circuit panel and each having a terminal entry portion to be accessible in the body opening from an opposite side of the body for receiving and resiliently, electrically engaging a component terminal therein for mounting the component on the circuit panel, characterized in that a plate which has a plurality of protuberances formed in selected spaced relation to each other thereon is disposed over the opposite body side with the protuberances fitted into respective terminal entry portions of the contact members for spacing the contacts with said selected spacing relative to each other in the body openings, and tape means are adhesively and detachably secured to the connector body over the plate and over the body openings for sealing the connector body openings at the opposite body side, so that when conformal coating materials are applied to the circuit panel system, the tape excludes the conformal coating materials from the connector body openings and the tape and plate are adapted to be subsequently removed to permit component terminals to be inserted into the terminal entry portions of the contact members.

8. A circuit panel system for mounting a component and for electrically connecting component terminals in an electrical circuit comprising a circuit panel having circuit paths defined thereon and have a plurality of openings disposed in selected locations relative to the circuit paths, an electrically insulating connector body having a plurality of openings extending through the body aligned with respective openings in the circuit panel, a plurality of electrical contact members movably disposed in the connector body openings each having a post portion extending from a connector body opening at one side of the body into a corresponding circuit panel opening and soldered to a selected circuit path on the circuit panel and each having a terminal entry portion to be accessible in the body opening from an opposite side of the body for receiving and resiliently, electrically engaging a component terminal therein for mounting the component on the circuit panel, characterized in that a plate having a plurality of protuberances formed thereon is disposed over the opposite body side with the protuberances fitted into respective terminal entry portions of the contact members spacing the contacts relative to each other in the body openings, and tape means are adhesively and detachably secured to the connector body over the plate and over the body openings for sealing the connector body openings at the opposite body side, a conformal coating covers the circuit panel system, and the tape and plate are adapted to be removed to permit the component terminals to be inserted into the terminal entry portions of the contact members, whereby, when the conformal coating materials are applied to the circuit panel system, the tape excludes the conformal coating materials from the connector body openings.

9. A circuit panel system as set forth in claim 8 further characterized in that the connector body carries a sealing means on said one connector side sealingly engaging the circuit panel beneath said conformal coating.

10. A method for making a circuit panel system comprising the steps of providing a circuit panel having circuit paths defined thereon and having a plurality of openings disposed in selected locations relative to the circuit paths;

providing a connector comprising an electrically insulating body having a plurality of openings extending through the body, a plurality of contact members movably disposed in the respective body openings, the contact members having respective post portions at one end extending from the body openings at one side of the body and having respective terminal entry portions to be accessible from an opposite side of the body, a plate having a plurality of protuberances formed in selected spaced relation to each other therein disposed over the opposite connector body side with the protuberances fitted into respective terminal entry portions of the contact members spacing the contact members at said selected spacing relative to each other in the body openings, and a tape adhesively and detachably secured to the body over the plate and over the connector body openings at the opposite connector body side for sealing the openings;

inserting the post portions of the contact members of the connector in corresponding openings in the circuit panel;

soldering the post portions of the contact members in the circuit panel openings at said selected spacing to selected circuit paths on the circuit panel;

removing the tape and plate members from the connector;

inserting terminals of an electrical component into the terminal entry portions of the contact member to be received and resiliently and electrically engaged by the contact members for mounting the component on the connector and electrically connecting the component terminals to said selected circuit paths on the circuit panel.

11. A method for making a circuit panel system comprising the steps of providing a circuit panel having circuit paths defined thereon and having a plurality of openings disposed in selected locations relative to the circuit paths;

providing a connector comprising an electrically insulating body having a plurality of openings extending through the body, a plurality of contact members disposed in the respective body openings, the contact members having respective post portions at one end extending from the body openings at one side of the body and having respective terminal entry portions to be accessible from an opposite side of the body, a plate having a plurality of protuberances formed therein disposed over the opposite connector body side with the protuberances fitted into respective terminal entry portions of the contact members spacing the contact members relative to each other in the body openings, and a tape adhesively and detachably secured to the body over the plate and over the connector body openings at the opposite connector body side for sealing the openings;

inserting the post portions of the contact members of the connector in corresponding openings in the circuit panel;

soldering the post portions of the contact members in the circuit panel openings to selected circuit paths on the circuit panel;

applying a conformal coating material is applied to the circuit panel and connector for moisture sealing the circuit paths and connector on the circuit panel prior to removing the tape and plate from the connector to receive insertion of component terminals so that the tape excludes such conformal coating materials from the connector body openings removing the tape and plate members from the connector;

inserting terminals of an electrical component into the terminal entry portions of the contact member to be received and resiliently and electrically engaged by the contact members for mounting the component on the connector and electrically connecting the component terminals to said selected circuit paths on the circuit panel.

12. A method according to claim 11 further characterized in that the connector has a flexible, heat-curable adhesive sealing means secured to said one side of the connector body and the flexible heat sealing means is heat-treated for sealingly securing the flexible sealing means to the circuit panel.

13. A method as set forth in claim 12 wherein said heat-treating of the flexible sealing means is performed during said soldering.