Right angle coaxial connector
View Patent ↗A right angle coaxial connector having a construction that simplifies attachment to a coaxial cable. The coaxial connector includes an outer housing and a coupling element to which the center conductor of the coaxial cable is coupled in an environment external to the outer housing. The coupling element has spring arms resiliently insertable into a bore defined in a central pin of the coaxial connector. The spring arms provide electrical contact between the central pin and the center conductor of the coaxial cable.
1. An electrical connector for attachment to a coaxial cable having a central conductor, comprising:
an electrically-conductive outer housing having a cable passageway, an electrically-conductive central pin with a bore, and a dielectric bushing separating said central pin from said outer housing; and
a coupling element configured for joining the central conductor with said central pin, said coupling element configured to couple with the central conductor and having a plurality of spring arms, said coupling element capable of being inserted into said cable passageway for positioning said spring arms in said bore of said central pin so as to establish electrical contact therebetween.
2. The electrical connector of claim 1 wherein each of said plurality of spring arms includes a beveled surface, said beveled surfaces contacting said bore of said central pin for guiding said spring arms when inserted into said bore.
3. The electrical connector of claim 1 wherein said coupling element includes a shoulder and each of said plurality of spring arms includes one of a plurality of detent surfaces facing toward said shoulder, said central pin being captured between said shoulder and said plurality of detent surfaces.
4. The electrical connector of claim 1 wherein said outer housing includes a first housing section enclosing said cable passageway, and a second housing section enclosing said dielectric bushing and said central pin, said cable passageway aligned along a first longitudinal axis and said central pin aligned along a second longitudinal axis oriented at an angle relative to said first longitudinal axis.
5. The electrical connector of claim 4 wherein said bore of said central pin is oriented generally parallel to said first longitudinal axis.
6. The electrical connector of claim 4 wherein said first longitudinal axis is aligned substantially perpendicular to said second longitudinal axis.
7. The electrical connector of claim 4 wherein each of said plurality of spring arms includes one of a corresponding plurality of beveled surfaces, each of said plurality of beveled surfaces contacting said bore of said central pin for guiding said spring arms into said bore.
8. The electrical connector of claim 7 wherein said coupling element includes a third longitudinal axis that is substantially aligned with a center of said bore, each of said plurality of beveled surfaces being tapered at an acute angle relative to said third longitudinal axis.
9. The electrical connector of claim 8 wherein said acute angle is about 30°.
10. The electrical connector of claim 8 wherein said plurality of beveled surfaces are rotationally symmetrical about said third longitudinal axis.
11. The electrical connector of claim 1 wherein each of said plurality of spring arms includes one of a corresponding plurality of detent surfaces that cooperate for resisting removal of the coaxial cable from said cable passageway when said spring arms are positioned in said bore of said central pin.
12. The electrical connector of claim 1 wherein said coupling element further comprise a solder cup dimensioned to receive a portion of the central conductor for forming a solder joint between the central conductor and said coupling element.
13. A cable assembly comprising:
a coaxial cable having a central conductor;
an electrically-conductive outer housing having a cable passageway, an electrically-conductive central pin with a bore, and a dielectric bushing separating said central pin from said outer housing; and
a coupling element configured for joining said central conductor with said central pin, said coupling element configured to couple with said central conductor and having a plurality of spring arms, said coupling element capable of being inserted into said cable passageway for positioning said spring arms in said bore of said central pin so as to establish electrical contact therebetween.
14. The electrical connector of claim 13 wherein each of said plurality of spring arms includes a beveled surface, said beveled surfaces contacting said bore of said central pin for guiding said spring arms when inserted into said bore.
15. The electrical connector of claim 13 wherein said coupling element includes a shoulder and each of said plurality of spring arms includes one of a plurality of detent surfaces facing toward said shoulder, said central pin being captured between said shoulder and said plurality of detent surfaces.
16. The electrical connector of claim 13 wherein said outer housing includes a first housing section enclosing said cable passageway, and a second housing section enclosing said dielectric bushing and said central pin, said cable passageway aligned along a first longitudinal axis and said central pin aligned along a second longitudinal axis oriented at an angle relative to said first longitudinal axis.
17. The electrical connector of claim 16 wherein said bore of said central pin is oriented generally parallel to said first longitudinal axis.
18. The electrical connector of claim 16 wherein said first longitudinal axis is aligned substantially perpendicular to said second longitudinal axis.
19. The electrical connector of claim 16 wherein each of said plurality of spring arms includes one of a corresponding plurality of beveled surfaces, each of said plurality of beveled surfaces contacting said bore of said central pin for guiding said spring arms into said bore.
20. The electrical connector of claim 19 wherein said coupling element includes a third longitudinal axis that is substantially aligned with a center of said bore, each of said plurality of beveled surfaces being tapered at an acute angle relative to said third longitudinal axis.
21. The electrical connector of claim 20 wherein said acute angle is about 30°.
22. The electrical connector of claim 20 wherein said plurality of beveled surfaces are rotationally symmetrical about said third longitudinal axis.
23. The electrical connector of claim 13 wherein each of said plurality of spring arms includes one of a corresponding plurality of detent surfaces that cooperate for resisting removal of the coaxial cable from said cable passageway when said spring arms are positioned in said bore of said central pin.
24. The electrical connector of claim 13 wherein said coupling element further comprises a solder cup dimensioned to receive a portion of said central conductor for forming a solder joint between said central conductor and said coupling element.
25. A method of coupling a right angle coaxial connector with a coaxial cable, comprising:
coupling a coupling element with a central conductor of the coaxial cable external to an outer housing of the right angle coaxial connector;
inserting the coupling element into the outer housing; and
resiliently engaging a plurality of springs arms of the coupling element with a bore formed in a central pin provided inside the outer housing to establish electrical contact therebetween.
26. The method of claim 25 further comprising electrically coupling the central pin with a receptacle of a complementary electrical connector to create an electrical connection.
27. The method of claim 25 wherein the coupling of the coupling element and the central conductor further comprises soldering the coupling element to the central conductor.