US3533046A - Precision miniature sexless coaxial connector - Google Patents

Precision miniature sexless coaxial connector Download PDF

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Publication number
US3533046A
US3533046A US783941A US3533046DA US3533046A US 3533046 A US3533046 A US 3533046A US 783941 A US783941 A US 783941A US 3533046D A US3533046D A US 3533046DA US 3533046 A US3533046 A US 3533046A
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US
United States
Prior art keywords
connector
sexless
diameter
inner conductor
coaxial connector
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Legal status (The legal status 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 status listed.)
Expired - Lifetime
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US783941A
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English (en)
Inventor
Harmon W Banning
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Individual
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Individual
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Publication date
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Publication of US3533046A publication Critical patent/US3533046A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • a miniature sexless coaxial connector is characterized by an inner conductor sliding spring mechanism to establish coupling between like connectors while introducing negligible mismatch.
  • the present invention relates to precision sexless miniature connectors and more particularly concerns a novel miniature coaxial connector suitable for use with 3.5 millimeter lines while introducing negligible mismatch or unwanted resonances.
  • an outer conductor and an inner conductor assembly having an inside portion maintained in fixed relationship with respect to the other conductor means and an outside portion that is axially slideable and radially fixed relative to the axis of the connector.
  • the inner conductor assembly includes spring means in a region around an outside stud that is inside the circularly cylindrical cavity at the inside end of the inner conductor outside portion. The bottom of this cavity is defined by an annular shoulder or base formed with an opening of diameter slightly larger than the diameter of the stud, but slightly less than the diameter of a screwhead.
  • the stud is internally tapped to accommodate a screw having that screwhead so that the screwhead coacts with the base to limit the outward movement of the outside portion as the surrounding spring urges the inside and outside portions apart to insure good contact with the inner conductor of a like sexless coaxial connector.
  • the inside portion also includes a beveled shoulder upon which the inside surface of the outside portion rides.
  • FIG. 1 is a longitudinal sectional view through a connector according to the invention.
  • FIG. 2 is a sectional view through the inner conductor assembly according to the invention.
  • the outer conductor assembly includes a main conducting portion 11 that carries an annular-dielectric bead 12 in the inside end of the connector surrounding an inner conductor inside end portion 13 of slightly smaller diameter than the main length of the inner conductor so that the characteristic impedance of the connector along the entire length is substantially constant.
  • the inner conductor assembly includes a fixed inside portion 14 that is supported by three radial pins 15 equiangularly disposed about the connector axis between compensating pairs of holes, such as 16.
  • the outer conductor assembly also carries a crenellated alignment ring 17 at its outside end that is held in place by the internally and externally threaded collar 21.
  • An internally threaded coupling nut 22 completes the outer conductor assembly.
  • the inner conductor assembly includes a moveable outside portion 23 that is slideable along the axis of the connector but maintained in precise concentric relationship with respect to the outer conductor.
  • FIG. 2 there is shown a detailed magnified longitudinal sectional view of the inner conductor assembly near the outside end of the connector helpful in understanding the invention.
  • the unitary circularly cylindrically symmetrical conducting part 24 is formed with an outside stud 25 that fits snugly within the hollow end of assembly 14 in fixed relationship thereto. Its outside end is formed with a stud 26 having a threaded opening 27 for accommodating a screw 31.
  • a hollow conducting cylinder 32 urged away from conducting member 24 by spring 30 and limited in axial end travel by the head of screw 31, completes the inner conductor assembly.
  • a feature of the invention resides in forming the shoulder 33 of member 24 upon which the inside wall of member 32 slides slightly bevelled as shown to help reduce electrical mismatch.
  • Member 32 is formed with a central opening 34 of diameter slightly greater than that of outside stud 26 and less than the diameter of the head of screw 31 and the diameter of spring 30. Actual contact with the inner conductor of a like mating connector occurs along the annular outer surface 35 as the spring 30 urges member 32 against a like member to insure good reliable contact.
  • the invention is relatively easy and inexpensive to fabricate.
  • the member 24 may be accurately formed. Assembly is relatively easy to accomplish by putting spring 30 over stud 26, sliding member 32 over member 24, and screwing screw 31 into threaded opening 27.
  • shoulder 33 performs a dual function. It provides a means for effecting good contact with the inside wall of hollow conducting cylinder 32 over a range of relative axial displacement. It also increases slightly the effective diameter of the outer surface of cylinder 32 (this cylinder having four longitudinal slots in space quadrature to permit some expansion) to introduce an eifective capacity that compensates for the inductive effect of the gap immediately adjacent to the cylinder open end and of the slots.
  • the slight difference between the diameter of opening 34 and stud 26 allows a slight axial misalignment of inner conductors of mating connectors to insure a good connection with good electrical characteristics despite slight mechanical imperfections.
  • a precision miniature coaxial sexless connector comprising:
  • said inner conductor assembly including an outside stud of first diameter contiguous with a shoulder of second diameter" greater than said first diameter and formed with an internally threaded opening for re
  • a hollow conducting element open at one end having its inside wall axially slideable along said shoulder and having a base at the other end formed with an opening of third diameter slightly larger than said first diameter

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  • Coupling Device And Connection With Printed Circuit (AREA)
US783941A 1968-12-16 1968-12-16 Precision miniature sexless coaxial connector Expired - Lifetime US3533046A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78394168A 1968-12-16 1968-12-16
US14706671A 1971-05-26 1971-05-26

Publications (1)

Publication Number Publication Date
US3533046A true US3533046A (en) 1970-10-06

Family

ID=26844553

Family Applications (2)

Application Number Title Priority Date Filing Date
US783941A Expired - Lifetime US3533046A (en) 1968-12-16 1968-12-16 Precision miniature sexless coaxial connector
US27483D Expired USRE27483E (en) 1968-12-16 1971-05-26 Precision miniature sexless coaxial connector

Family Applications After (1)

Application Number Title Priority Date Filing Date
US27483D Expired USRE27483E (en) 1968-12-16 1971-05-26 Precision miniature sexless coaxial connector

Country Status (4)

Country Link
US (2) US3533046A (sv)
DE (1) DE1962924A1 (sv)
FR (1) FR2026204A1 (sv)
GB (1) GB1251097A (sv)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647127A (en) * 1982-06-08 1987-03-03 Neutrik Aktiengesellschaft Electrical connector assembly
US4773032A (en) * 1984-11-20 1988-09-20 Fujitsu Limited Terminal input apparatus
FR2750801A1 (fr) * 1996-07-04 1998-01-09 Smiths Industries Plc Composant pour contact electrique et appareil pourvu d'un tel composant
US20050009395A1 (en) * 2003-05-22 2005-01-13 Champion Aerospace Inc. Ignition lead with replaceable terminal contact
CN104022376A (zh) * 2014-06-27 2014-09-03 常州普纳电子科技有限公司 多联双向浮动板载射频同轴连接器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2463076C2 (de) * 1974-05-02 1985-04-18 Georg Dr.-Ing. 8152 Feldkirchen-Westerham Spinner Buchsenstecker für eine HF-Steckverbindung
JP7122116B2 (ja) * 2018-01-18 2022-08-19 株式会社フジクラ 同軸コネクタ

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2117029A (en) * 1937-02-16 1938-05-10 Ohio Brass Co Electric connecter
US2690542A (en) * 1949-11-10 1954-09-28 Albert & J M Anderson Mfg Co Electrical connector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2117029A (en) * 1937-02-16 1938-05-10 Ohio Brass Co Electric connecter
US2690542A (en) * 1949-11-10 1954-09-28 Albert & J M Anderson Mfg Co Electrical connector

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647127A (en) * 1982-06-08 1987-03-03 Neutrik Aktiengesellschaft Electrical connector assembly
US4773032A (en) * 1984-11-20 1988-09-20 Fujitsu Limited Terminal input apparatus
FR2750801A1 (fr) * 1996-07-04 1998-01-09 Smiths Industries Plc Composant pour contact electrique et appareil pourvu d'un tel composant
US20050009395A1 (en) * 2003-05-22 2005-01-13 Champion Aerospace Inc. Ignition lead with replaceable terminal contact
WO2004106730A3 (en) * 2003-05-22 2005-04-07 Champion Aerospace Inc Ignition lead with replaceable terminal contact
US7001195B2 (en) * 2003-05-22 2006-02-21 Champion Aerospace Inc. Ignition lead with replaceable terminal contact
CN104022376A (zh) * 2014-06-27 2014-09-03 常州普纳电子科技有限公司 多联双向浮动板载射频同轴连接器

Also Published As

Publication number Publication date
GB1251097A (sv) 1971-10-27
DE1962924A1 (de) 1970-09-17
USRE27483E (en) 1972-09-19
FR2026204A1 (sv) 1970-09-18

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