High frequency miniature connectors with canted coil springs and related methods
View Patent ↗Coaxial connecting devices used for transmitting high frequency electrical signals having two connector elements of generally cylindrical profile, and wherein each of the connector elements has an inner conductor, an insulator, and an outer conductor. In one of the two connector elements that may be of a male or a female orientation has two canted coil spring contacts where at least one of a first spring contact can be retained within at least one first spring groove within a second inner conductor and at least one of a second spring contact is retained within at least one second spring groove within a second outer conductor. The at least one second spring contact can be used as a simultaneous EMI shielding contact and latching, locking, or both latching and locking device.
1. A high frequency connecting apparatus comprising:
a first connector element comprising an inner conductor, an outer conductor and an insulator separating the inner conductor from the outer conductor; said insulator fitted radially in between the inner conductor and the outer conductor, wherein said inner conductor comprises a male tip;
a second connector element comprising an inner conductor, an outer conductor, and an insulator separating the inner conductor from the outer conductor, said insulator fitted radially in between the inner conductor and the outer conductor, wherein the inner conductor comprises a female tip comprising a bore for receiving the male tip;
a groove on the outer conductor of the first connector element and a groove on the outer conductor of the second connector element capturing a canted coil spring contact therebetween to provide simultaneous EMI shielding and engagement structure to engage the first connector element to the second connector element; and
wherein the female tip comprises a slotted socket or a groove holding a spring contact.
2. The high frequency connecting apparatus of claim 1 , wherein the male tip comprises a tapered end and the inner conductor comprises a flange.
3. The high frequency connecting apparatus of claim 1 , wherein the canted coil spring contact is mounted to the groove of the outer conductor of the second connector element prior to engaging the first connector element to the second connector element.
4. The high frequency connecting apparatus of claim 3 , wherein the engagement with the canted coil spring contact is a latching connection or a locking connection.
5. The high frequency connecting apparatus of claim 3 , wherein the canted coil spring contact is retained to the groove by a metal handling ring.
6. The high frequency connecting apparatus of claim 1 , wherein the spring contact of the female tip is a canted coil spring contact.
7. The high frequency connecting apparatus of claim 6 , wherein at least one of the canted coil spring contacts has a configuration with alternating coils with different dimensions.
8. The high frequency connecting apparatus of claim 6 , wherein at least one of the canted coil spring contacts is retained within at least one metal spring handling ring.
9. The high frequency connecting apparatus of claim 8 , wherein the at least one metal spring handling ring is made from a copper alloy.
10. A method of manufacturing a high frequency connecting apparatus comprising:
forming a first connector element, said first connector element comprising an inner conductor, an outer conductor and an insulator separating the inner conductor from the outer conductor; said outer conductor comprising a base and an annular side extending from the base; said insulator fitted radially in between the inner conductor and the outer conductor, wherein said inner conductor comprises a male tip;
forming a second connector element, said second connector element comprising an inner conductor, an outer conductor, and an insulator separating the inner conductor from the outer conductor, said insulator fitted radially in between the inner conductor and the outer conductor, wherein the inner conductor comprises a female tip comprising a bore for receiving the male tip;
forming a groove on the outer conductor of the first connector element and a groove on the outer conductor of the second connector element;
placing a canted coil spring contact in one of the two grooves to provide simultaneous EMI shielding and engagement structure to engage the first connector element to the second connector element when engaging the two connector elements;
wherein said insulator of the first connector element comprises an insulator base and an insulator wall extending from the insulator base and along the annular side of the outer conductor of the first connector element to define a cavity for receiving the female tip; and
wherein the female tip comprises a slotted socket or a groove with a canted coil spring contact.
11. The method of claim 10 , wherein the canted coil spring contact is mounted to the groove of the outer conductor of the second connector element prior to engaging the first connector element to the second connector element.
12. The method of claim 10 , engaging the first connector element to the second connector element and wherein the engagement is a latching connection or a locking connection.
13. The method of claim 10 , wherein at least one of the canted coil spring contacts has a configuration with alternating coils with different dimensions.
14. The method of claim 13 , wherein at least one of the canted coil spring contacts is retained within at least one metal spring handling ring.
15. A high frequency connecting apparatus comprising:
a first connector element comprising an inner conductor, an outer conductor and an insulator separating the inner conductor from the outer conductor; said insulator fitted radially in between the inner conductor and the outer conductor, wherein said inner conductor comprises a male tip;
a second connector element comprising an inner conductor, an outer conductor, and an insulator separating the inner conductor from the outer conductor, said insulator fitted radially in between the inner conductor and the outer conductor, wherein the inner conductor comprises a female tip comprising a bore for receiving the male tip;
a groove on the outer conductor of the first connector element and a groove on the outer conductor of the second connector element capturing a first spring contact therebetween to provide simultaneous EMI shielding and engagement structure to engage the first connector element to the second connector element; and
wherein a second spring contact is located between and in contact with the female tip and the male tip.
16. The high frequency connecting apparatus of claim 15 , wherein the male tip comprises a tapered end and the inner conductor comprises a flange.
17. The high frequency connecting apparatus of claim 15 , wherein the female tip comprises a groove having the second spring contact received in said groove.
18. The high frequency connecting apparatus of claim 15 , wherein the first spring contact is a canted coil spring contact mounted to the groove of the outer conductor of the second connector element prior to engaging the first connector element to the second connector element.
19. The high frequency connecting apparatus of claim 18 , wherein the engagement with the first spring contact is a latching connection or a locking connection.