A low intermodulation RF connector

Abstract

The present invention discloses a low intermodulation radio frequency connector, which includes a first component. The first component is provided with a first outer conductor, and a radially enlarged convex ring is arranged at the connecting end of the first outer conductor. It further includes a second component that is in electrical contact with the first component, and the second component is provided with a second outer conductor. The first outer conductor and the second outer conductor are in electrical contact only through the radially enlarged convex ring; the radially enlarged convex ring and the inner wall of the second outer conductor are in radial line contact only. The setting of the structure in this disclosure avoids the generation of uncertain gaps between the first outer conductor and the second outer conductor after the first outer conductor is tilted, thereby affecting the intermodulation of the product. Through the reasonable setting of the component structure, the outer conductor is axially suspended during plug-in electrical contact and only makes radial line contact at certain positions, without generating redundant contact points.

Description

Technical Field

[0001] The present invention belongs to the field of radio frequency connectors, and particularly relates to a low intermodulation radio frequency connector. Background Art

[0002] Existing blind plug-in products, such as SMP type radio frequency connectors, are divided into three parts: a detent end, an intermediate transfer link, and a light hole end; after the intermediate transfer link part is installed in the detent end, due to the influence of processing and assembly tolerances, the transfer link will have a certain deflection. After deflection, there will be an uncertain gap between the outer conductor of the transfer link and the outer conductor of the detent end. A large number of test results show that the intermodulation is not good in this state, or the intermodulation is unstable under vibration. The product of this invention eliminates the gap problem generated after the outer conductor of the transfer link and the outer conductor of the detent end are mated, and improves the intermodulation index and intermodulation stability of the blind plug-in product. Summary of the Invention

[0003] In view of the above problems, the object of the present invention is to provide a low intermodulation radio frequency connector. Through reasonable setting of the component structure, when the outer conductors are inserted and in electrical contact, they are axially suspended and only have radial line contact at certain positions, without generating redundant contact points.

[0004] To achieve the above object, the technical solutions adopted by the present invention include:

[0005] A low intermodulation radio frequency connector includes a first component, the first component is provided with a first outer conductor, and a radially enlarged convex ring is provided at the connection end of the first outer conductor;

[0006] It further includes a second component in electrical contact with the first component, and the second component is provided with a second outer conductor;

[0007] The first outer conductor and the second outer conductor are only in electrical contact through the radially enlarged convex ring; the radially enlarged convex ring and the inner wall of the second outer conductor only have radial line contact.

[0008] Optionally, after the first outer conductor and the second outer conductor are axially or radially deflected and docked, they are only in electrical contact through the radially enlarged convex ring.

[0009] Optionally, at the end, an insulator is coaxially embedded in the inner wall of the second outer conductor or an insulator is coaxially connected to the end of the second outer conductor; along the coaxial direction, a second dielectric is clamped in the second outer conductor, and a second inner conductor is axially penetrated through the second dielectric; the second outer conductor between the insulator and the second dielectric has radial line contact with the radially enlarged convex ring.

[0010] Optionally, the second dielectric is a ring plate member, and a second dielectric boss surrounding the second inner conductor is provided at one end of the ring plate member.

[0011] Optionally, a plurality of outer conductor radial deformation members are arranged circumferentially at the connection end of the first outer conductor, and a radially enlarged convex ring is arranged on the outer periphery of the end of the outer conductor radial deformation member.

[0012] Optionally, along the coaxial direction, a first dielectric and a first inner conductor are sequentially sleeved in the first outer conductor;

[0013] An annular gap is formed between the first outer conductor and the first dielectric at the connection end.

[0014] Furthermore, a plurality of inner conductor radial deformation members are arranged circumferentially at the connection end of the first inner conductor.

[0015] Furthermore, a radially contracting section is formed at the connection end of the first dielectric.

[0016] Furthermore, a plurality of outer conductor radial deformation members are arranged circumferentially at the connection end of the first outer conductor, and a radially enlarged convex ring is arranged on the outer periphery of the end of the outer conductor radial deformation member.

[0017] Furthermore, at the end, an insulator is coaxially embedded in the inner wall of the second outer conductor or an insulator is coaxially connected to the end of the second outer conductor; along the coaxial direction, a second dielectric is clamped in the second outer conductor, and a second inner conductor is axially penetrated through the second dielectric; the second outer conductor between the insulator and the second dielectric is in radial line contact with the radially enlarged convex ring.

[0018] For the low-intermodulation RF connector of the present invention, through the reasonable setting of the component structure, the outer conductor is axially suspended during the plug-in electrical contact and only makes radial line contact at a certain position, without generating redundant contact points. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification, and are used together with the following specific embodiments to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0020] Figure 1 is a schematic structural diagram of the low-intermodulation RF connector of the present invention;

[0021] Figure 2 is Figure 1 a schematic structural diagram of the second component in

[0022] Figure 3 is Figure 1 a schematic structural diagram of the first component in

[0023] Figure 4 is a schematic structural diagram of the low-intermodulation RF connector after radial deflection under the first solution of the present invention;

[0024] Figure 5Schematic diagram of the structure of the low-intermodulation RF connector after radial deflection under the second solution of the present invention;

[0025] Each label in the figure is represented as follows: 1 - first component, 11 - first outer conductor, 11a - radially deformed part of the outer conductor, 11b - radially enlarged convex ring, 12 - first inner conductor, 12a - radially deformed body of the inner conductor, 13 - first dielectric, 13a - radially contracted section, 2 - second component, 21(21’) - insulator, 22(’) - second outer conductor, 23 - second dielectric, 23a - second dielectric boss, 24 - second inner conductor. Detailed implementation mode

[0026] The present invention will be further described in detail below with reference to the accompanying drawings. The following is an explanation of the present invention rather than a limitation. In the present disclosure, unless otherwise stated, the orientation terms such as "upper" and "lower" generally refer to those defined based on the plane of the corresponding drawing, and "inner" and "outer" refer to the inside and outside of the contour of the corresponding component.

[0027] Combined with Figures 1-5 , the low-intermodulation RF connector of the present invention includes a first component 1. The first component 1 is provided with a first outer conductor 11, and a radially enlarged convex ring 11b is provided at the connection end of the first outer conductor 11; it further includes a second component 2 in electrical contact with the first component 1, and the second component 2 is provided with a second outer conductor 22; the first outer conductor 11 and the second outer conductor 22 are only in electrical contact through the radially enlarged convex ring 11b; the radially enlarged convex ring 11b and the inner wall of the second outer conductor 22 are only in radial line contact. That is to say, no matter in what state the first component 1 and the second component 2 are in contact, such as axial direct insertion or radial deflection, it can be ensured that the first outer conductor 11 and the second outer conductor 22 are only electrically connected at the radially enlarged convex ring 11b, and the enlarged convex ring here is preferably a smooth arc ring on the outer surface to ensure radial line contact and minimize the appearance of unnecessary redundant contacts. When deflection occurs, there will be no contact or electrical connection at other parts between the first outer conductor 11 and the second outer conductor 22. For example, when the first outer conductor 11 is axially inserted into the second outer conductor 22, the radially enlarged convex ring 11b is only in electrical contact with the inner wall of the second outer conductor 22 at a specific position, and for other non-enlarged parts, when radial deflection occurs, the first outer conductor 11 and the second outer conductor 22 can be isolated by other insulating dielectrics. This makes the outer conductors axially suspended when making plug-in electrical contact and only in radial line contact at a certain position, without generating redundant contact points, greatly improving the intermodulation performance and stability of blind plug products, and being more conducive to production and market promotion. After evaluation, the intermodulation performance and stability of blind plug products have been improved.

[0028] In an embodiment of the present disclosure, after the first outer conductor 11 and the second outer conductor 22 are axially or radially deflected and docked, they are in electrical contact only through the radially enlarged convex ring 11b. That is, the structure of the present disclosure should at least ensure that, regardless of the state of the first outer conductor 11 and the second outer conductor 22, such as axial insertion with states like axial straight insertion and radially deflected insertion, the radially enlarged convex ring 11b can achieve electrical contact only with the inner wall of the second outer conductor 22 at a specific position. For other non-enlarged parts, when radially deflected, the first outer conductor 11 and the second outer conductor 22 can be isolated and separated by other insulating media.

[0029] In an embodiment of the present disclosure, at the end, an insulator 21 is coaxially embedded in the inner wall of the second outer conductor 22 or an insulator 21' is coaxially connected to the end of the second outer conductor 22'. Both of these two forms can satisfy the isolation and separation of the first outer conductor 11 and the second outer conductor 22, and the radially enlarged convex ring 11b is in electrical contact only with the inner wall of the second outer conductor 22 at a specific position; along the coaxial direction, a second medium 23 is clamped in the second outer conductor 22, and a second inner conductor 24 is axially penetrated through the second medium 23; the second outer conductor 22 located between the insulator 21 and the second medium 23 is in radial line contact with the radially enlarged convex ring 11b. For example, through the structural design of the second medium 23, the first outer conductor 11 can be axially suspended without contacting any part of other components.

[0030] In an embodiment of the present disclosure, for example, the second medium 23 is a ring plate member, and a second medium boss 23a surrounding the second inner conductor 24 is provided at one end of the ring plate member. In this way, an axial recessed space appears at the edge of the second medium 23 close to the second outer conductor 22, which can achieve the axial suspension when the first outer conductor 11 and the second outer conductor 22 are axially inserted, and make the second medium boss 23a in medium abutment with the first component 1.

[0031] In an embodiment of the present disclosure, a plurality of outer conductor radial deformation members 11a are circumferentially arranged at the connection end of the first outer conductor 11, and a radially enlarged convex ring 11b is provided on the outer periphery of the end of the outer conductor radial deformation member 11a. The radially enlarged convex ring 11b of the present invention is preferably provided on the outer conductor radial deformation member 11a. In this way, when the first outer conductor 11 and the second outer conductor 22 are inserted, radial elastic deformation is also allowed, so that while the first outer conductor 11 and the second outer conductor 22 are in radial line contact, stable signal transmission between the two is ensured.

[0032] Embodiment 1:

[0033] Combined with Figures 1-5, for the low intermodulation RF connector of the present invention, a first component 1 is provided. The first component 1 is provided with a first outer conductor 11, and a radially enlarged convex ring 11b is provided at the connecting end of the first outer conductor 11. A second component 2 in electrical contact with the first component 1 is also provided, and the second component 2 is provided with a second outer conductor 22. The first outer conductor 11 and the second outer conductor 22 are in electrical contact only through the radially enlarged convex ring 11b. The radially enlarged convex ring 11b and the inner wall of the second outer conductor 22 are in radial line contact only.

[0034] Along the coaxial direction, a first dielectric 13 and a first inner conductor 12 are sequentially sleeved inside the first outer conductor 11. An annular gap is formed between the first outer conductor 11 and the first dielectric 13 at the connecting end. For example, the first dielectric forms a radially contracted section 13a at the connecting end. The first inner conductor 12 is provided with a plurality of inner conductor radial deformation members 12a along the circumferential direction at the connecting end. Specifically, the first outer conductor 11 is provided with a plurality of outer conductor radial deformation members 11a along the circumferential direction at the connecting end, and a radially enlarged convex ring 11b is provided on the outer periphery of the end of the outer conductor radial deformation member 11a. This makes the first outer conductor 11 not only axially suspended at the plugging end, but also forms an annular gap radially at the plugging end, achieving the effect of not contacting other components to a certain extent.

[0035] At the end, an insulator 21 is coaxially embedded on the inner wall of the second outer conductor 22 or an insulator 21' is coaxially connected to the end of the second outer conductor 22'. Along the coaxial direction, a second dielectric 23 is clamped inside the second outer conductor 22, and a second inner conductor 24 is axially penetrated through the second dielectric 23. The second outer conductor 22 between the insulator 21 and the second dielectric 23 is in radial line contact with the radially enlarged convex ring 11b. The second dielectric 23 is a ring disc member, and a second dielectric boss 23a surrounding the second inner conductor 24 is provided at one end of the ring disc member.

[0036] The present invention first designs the contact mode between the first outer conductor 11 and the second outer conductor 22, realizing that the first outer conductor 11 and the second outer conductor 22 are in electrical contact only through the radially enlarged convex ring 11b. The radially enlarged convex ring 11b and the inner wall of the second outer conductor 22 are in radial line contact only. In addition, by providing a non-conductive insulator 21 or insulator 21' from the dielectric isolation end face to the port part of the second component 2 and the dielectric support between the inner and outer conductors, the contact part of the first outer conductor 11 is axially suspended, avoiding the uncertain gap generated between the first outer conductor 11 and the second outer conductor 22 after the first outer conductor 11 is tilted, thus affecting the intermodulation of the product. This makes the outer conductor at the jack end axially suspended, without generating redundant contact points, greatly improving the intermodulation performance and stability of the blind plug type product, and being more conducive to production and market promotion. After evaluation, the intermodulation performance and stability of the blind plug type product are improved.

[0037] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0038] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination manners.

[0039] Furthermore, any combination can be made among various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content invented by the present disclosure.

Claims

1. A low intermodulation RF connector, characterized in that, It includes a first component (1). The first component (1) is provided with a first outer conductor (11), and a radially enlarged convex ring (11b) is provided at the connection end of the first outer conductor (11). It further includes a second component (2) in electrical contact with the first component (1). The second component (2) is provided with a second outer conductor (22). The first outer conductor (11) is in electrical contact with the second outer conductor (22) only through the radially enlarged convex ring (11b); the radially enlarged convex ring (11b) is in only radial line contact with the inner wall of the second outer conductor (22). After the first outer conductor (11) and the second outer conductor (22) are axially or radially deflected and docked, they are in electrical contact only through the radially enlarged convex ring (11b). At the end, an insulator (21) is coaxially embedded on the inner wall of the second outer conductor (22) or an insulator (21') is coaxially connected to the end of the second outer conductor (22'); along the coaxial direction, a second dielectric (23) is clamped in the second outer conductor (22), and a second inner conductor (24) is axially penetrated through the second dielectric (23); the second outer conductor (22) between the insulator (21) and the second dielectric (23) is in radial line contact with the radially enlarged convex ring (11b). The second dielectric (23) is an annular disc member, and a second dielectric boss (23a) surrounding the second inner conductor (24) is provided at one end of the annular disc member. The first outer conductor (11) is provided with a plurality of outer conductor radial deformation members (11a) along the circumferential direction at the connection end, and a radially enlarged convex ring (11b) is provided on the outer periphery of the end of the outer conductor radial deformation member (11a).

2. The low intermodulation radio frequency connector according to claim 1, wherein, Along the coaxial direction, a first dielectric (13) and a first inner conductor (12) are sequentially sleeved in the first outer conductor (11). The first outer conductor (11) forms an annular gap with the first dielectric (13) at the connection end.

3. The low intermodulation RF connector according to claim 2, wherein The first inner conductor (12) is provided with a plurality of inner conductor radial deformation members (12a) along the circumferential direction at the connection end.

4. The low intermodulation radio frequency connector according to claim 2, wherein The first dielectric forms a radially contracted section (13a) at the connection end.

5. The low intermodulation radio frequency connector according to claim 2, wherein The first outer conductor (11) is provided with a plurality of outer conductor radial deformation members (11a) along the circumferential direction at the connection end, and a radially enlarged convex ring (11b) is provided on the outer periphery of the end of the outer conductor radial deformation member (11a).

6. The low intermodulation RF connector according to claim 2, wherein At the end, an insulator (21) is coaxially embedded on the inner wall of the second outer conductor (22) or an insulator (21') is coaxially connected to the end of the second outer conductor (22'). Along the coaxial direction, a second dielectric (23) is clamped in the second outer conductor (22), and a second inner conductor (24) is axially penetrated through the second dielectric (23). The second outer conductor (22) between the insulator (21) and the second dielectric (23) is in radial line contact with the radially enlarged convex ring (11b).

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