Low intermodulation radiofrequency coaxial connector

Abstract

A low intermodulation radiofrequency coaxial connector includes a first outer conductor and a second outer conductor matching the first outer conductor; a contact ring is provided between the first outer conductor and the second outer conductor, and the first outer conductor is elastically in contact with the second outer conductor through the contact ring. The radiofrequency coaxial connector can effectively suppress a nonlinear effect when radiofrequency signals are interconnected and ensure critical performance indicators such as low intermodulation for a radiofrequency interconnection. The low intermodulation contact ring in the radiofrequency coaxial connector is formed by connecting a head portion to a tail portion of a flexible metal material when punch molded, and has a simple structure, a reliable connection, a good workmanship, is easy to assemble, and is inexpensive.

Claims

1. A low intermodulation radiofrequency coaxial connector, comprising a first outer conductor and a second outer conductor matching the first outer conductor, wherein a contact ring is provided between the first outer conductor and the second outer conductor, and the first outer conductor is elastically in contact with the second outer conductor through the contact ring; wherein an inner contact point is provided on an inner side of the contact ring, and the inner contact point is directly in linear contact with the first outer conductor; wherein the inner contact point is provided at a same end as a positioning piece adjacent to the inner side of the contact ring.

2. The low intermodulation radiofrequency coaxial connector according to claim 1, wherein the contact ring is compressed between the first outer conductor and the second outer conductor.

3. The low intermodulation radiofrequency coaxial connector according to claim 1, wherein the first outer conductor is provided with a groove configured to limit and fix the contact ring.

4. The low intermodulation radiofrequency coaxial connector according to claim 3, wherein the contact ring is annular and has outer contact arc surfaces protruding outward.

5. The low intermodulation radiofrequency coaxial connector according to claim 4, wherein the outer contact arc surfaces are evenly distributed along a circumferential direction.

6. The low intermodulation radiofrequency coaxial connector according to claim 3, wherein one end of the inner side of the contact ring is provided with the positioning piece, and the positioning piece is mated and matched with the groove, and the groove limits an axial movement of the positioning piece.

7. The low intermodulation radiofrequency coaxial connector according to claim 1, wherein one end of the inner side of the contact ring is provided with the positioning piece, and the other end is in a free state.

8. The low intermodulation radiofrequency coaxial connector according to claim 4, wherein one end of the inner side of the contact ring is provided with the positioning piece, and the positioning piece is mated and matched with the groove, and the groove limits an axial movement of the positioning piece.

9. The low intermodulation radiofrequency coaxial connector according to claim 5, wherein one end of the inner side of the contact ring is provided with the positioning piece, and the positioning piece is mated and matched with the groove, and the groove limits an axial movement of the positioning piece.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic diagram illustrating a terminating structure of a radiofrequency coaxial connector according to the present disclosure.

(2) FIG. 2 is a partial enlarged view of a portion I in FIG. 1.

(3) FIG. 3 is a schematic diagram illustrating a matching structure of a contact ring and a first outer conductor.

(4) FIG. 4 is a schematic structure diagram of the first outer conductor in FIG. 3.

(5) FIG. 5 is a schematic structure diagram of a contact ring according to the present disclosure.

(6) FIG. 6 is a schematic perspective structure diagram illustrating that a contact ring is mounted on a first outer conductor according to the present disclosure.

DETAILED DESCRIPTION

(7) The present disclosure will be described below in conjunction with specific embodiments.

(8) FIG. 1 is a schematic diagram illustrating a terminating structure of a radiofrequency coaxial connector according to a preferred embodiment of the overall solution of the radiofrequency coaxial connector involved in the present disclosure. Of course, the overall solution of the radiofrequency coaxial connector involved in the present disclosure is not limited to the application shown in FIG. 1, but can also be applied to interconnections at various positions such as the interpolation interface, the middle portion, etc., of the connector. FIG. 2 is a partial enlarged view of a portion I in FIG. 1. The radiofrequency coaxial connector of the present disclosure includes a first outer conductor 10 and a second outer conductor 20 matching the first outer conductor 10. A contact ring 30 is provided between the first outer conductor 10 and the second outer conductor 20. The contact ring 30 is elastic, and the first outer conductor 10 is elastically in contact with the second outer conductor 20 through the contact ring 30. A natural state of the contact ring 30 is a compressed state, so that a reliable elastic contact between the first outer conductor 10 and the second outer conductor 20 can always be maintained, accordingly the electrical performance is guaranteed, and the low intermodulation elastic contact is implemented.

(9) As shown in FIG. 3, it is a schematic diagram illustrating a matching structure of the contact ring 30 and the first outer conductor 10. FIG. 4 is a schematic structure diagram of the first outer conductor 10 in FIG. 3; FIG. 5 is a schematic structure diagram of the contact ring 30 according to the present disclosure; FIG. 6 is schematic perspective structure diagram illustrating that a contact ring is mounted on a first outer conductor 10 according to the present disclosure. The first outer conductor 10 of the present disclosure is provided with a groove 11, and the groove 11 is configured to limit and fix the contact ring 30. The contact ring 30 is annular and has outer contact arc surfaces 31 protruding outward. The outer contact arc surfaces 31 are evenly distributed along a circumferential direction, so that the force on the outer contact arc surface 31 is evenly distributed, and a stable electrical performance is obtained. On an end of an inner side of the contact ring 30 is further provided a positioning piece 32 which is mated and matched with the groove 11, and the groove 11 limits the axial movement of the positioning piece 32, thereby limiting the axial movement of the contact ring 30 on the first outer conductor 10. On an end of the inner side of the contact ring 30 adjacent to the positioning piece 32 is further provided an inner contact point 33, and the inner contact point 33 is directly in linear contact with the first outer conductor 10, accordingly a reliability of the contact and the electrical performance thereof are guaranteed, and the low intermodulation elasticity contact thereof is implemented.

(10) In the contact ring 30 of the present disclosure, only on one end of the inner side is provided a positioning piece 32, and the other end is free. In such a way, when the contact ring 30 is elastically deformed, the positioning piece 32 is axially fixed and the other end is freely deformed, which is beneficial to the elastic deformation and ensures reliable contact and electrical performance.

(11) In the contact ring 30 of the present disclosure, the presence of the inner contact point 33 converts a direct contact between the contact ring 30 and the first outer conductor 10 into a direct linear contact between the inner contact point 33 and the first outer conductor 10, thereby guaranteeing the reliability of contact, guaranteeing the electrical performance thereof, and implementing the low intermodulation elastic contact thereof.

(12) In the contact ring 30 of the present disclosure, the positioning piece 32 and the inner contact point 33 are provided at the same end. Since the positioning piece 32 is fixed axially, which can fully guarantee the direct linear contact between the inner contact point 33 and the first outer conductor 10, and accordingly, the reliability of the contact and the electrical performance are guaranteed, and the low intermodulation elastic contact is implemented.

(13) In the contact ring 30 of the present disclosure, the first outer conductor 10 is provided with a groove 11, and the positioning piece 32 on the contact ring 30 is matched with the groove 11. In fact, the second outer conductor 20 is provided with the same structure to limit the axial movement of the positioning piece 32, accordingly the same function can be implemented, the reliability of the contact is guaranteed, the electrical performance thereof can be guaranteed, and the low intermodulation elastic contact thereof can be implemented. However, this belongs to another embodiment, which also does not depart from the essence of protection scope of the present disclosure.

(14) The above is a detailed description of the present disclosure in conjunction with specific embodiments. The present disclosure cannot be considered as being limited to these embodiments. Those skilled in the art to which the present disclosure belongs can make several simple deductions or replacements without departing from the concept of the present disclosure, which should be regarded as falling within the protection scope of the present disclosure.