阅读说明：本技术 一种低互调射频连接器 (Low intermodulation radio frequency connector ) 是由 孔浩 王升锋 孙宝亮 党作红 金凡 钟宁 张伟 于 2019-11-06 设计创作，主要内容包括：本发明公开了一种低互调射频连接器,包括第一组件,第一组件设置第一外导体,所述的第一外导体的连接端设置径向膨大凸环；还包括与第一组件电接触的第二组件,第二组件设置第二外导体；第一外导体与第二外导体仅通过径向膨大凸环电接触；径向膨大凸环与第二外导体的内壁仅进行径向线触接。本公开结构的设置避免了第一外导体倾斜后和第二外导体产生不确定的间隙,从而影响产品互调,通过对部件结构的合理设置,使得外导体在进行插接电接触时轴向悬空、仅在一定位置进行径向线接触,不产生多余接触点。(The invention discloses a low intermodulation radio frequency connector, which comprises a first assembly, a second assembly and a third assembly, wherein the first assembly is provided with a first outer conductor, and the connecting end of the first outer conductor is provided with a radial expansion convex ring; a second component in electrical contact with the first component, the second component providing a second outer conductor; the first outer conductor is electrically contacted with the second outer conductor only through the radial expansion convex ring; the radial expanded convex ring is in contact with the inner wall of the second outer conductor only in a radial line mode. The setting of this disclosed structure has avoided first outer conductor to produce uncertain clearance with the second outer conductor after the slope to influence the product intermodulation, through the reasonable setting to the part structure, make the outer conductor axial unsettled, only carry out radial line contact in a certain position when carrying out the electrical contact of pegging graft, do not produce unnecessary contact point.)

1. A low intermodulation radio frequency connector is characterized by comprising a first component (1), wherein the first component (1) is provided with a first outer conductor (11), and the connecting end of the first outer conductor (11) is provided with a radial expansion convex ring (11 b);

further comprising a second component (2) in electrical contact with the first component (1), the second component (2) being provided with a second outer conductor (22);

the first outer conductor (11) and the second outer conductor (22) are electrically contacted only through the radial expansion convex ring (11 b); the radially expanded convex ring (11b) is in contact with the inner wall of the second outer conductor (22) only in a radial line.

2. Low intermodulation radio frequency connector according to claim 1, characterized in that the first outer conductor (11) is electrically contacted with the second outer conductor (22) after axial or radial deflection mating only by the radially enlarged collar (11 b).

3. A low intermodulation radio frequency connector as claimed in claim 1 or 2, characterized in that 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 attached at the end of the second outer conductor (22');

along the same axis, a second medium (23) is clamped in the second outer conductor (22), and a second inner conductor (24) axially penetrates through the second medium (23);

the second outer conductor (22) positioned between the insulator (21) and the second medium (23) is in contact with the radial line of the radial expansion convex ring (11 b).

4. A low intermodulation radio frequency connector as claimed in claim 3, characterized in that the second dielectric (23) is a ring plate member, at one end of which is provided a second dielectric boss (23a) surrounding the second inner conductor (24).

5. The low intermodulation radio frequency connector according to claim 1 or 2, characterized in that the first outer conductor (11) is provided with a plurality of radially deformed outer conductor pieces (11a) at the connection end along the circumferential direction, and the radially deformed outer conductor pieces (11a) are provided with radially expanded convex rings (11b) at the peripheries of the ends thereof.

6. The low intermodulation radio frequency connector according to claim 1 or 2, characterized in that the first medium (13) and the first inner conductor (12) are coaxially sleeved in sequence in the first outer conductor (11);

the first outer conductor (11) forms an annular gap with the first dielectric (13) at the connection end.

7. The low intermodulation radio frequency connector of claim 6, wherein the first inner conductor (12) is circumferentially provided with a plurality of radially deformable inner conductor members (12a) at the connection end.

8. The low intermodulation radio frequency connector of claim 6, wherein the first medium forms a radial constriction (13a) at the connecting end.

9. The low intermodulation radio frequency connector according to claim 6, wherein the first outer conductor (11) is provided with a plurality of radially deformed outer conductor members (11a) at the connection end along the circumferential direction, and the radially deformed outer conductor members (11a) are provided with radially expanded convex rings (11b) at the outer peripheries of the ends thereof.

10. The low intermodulation radio frequency connector as claimed in claim 6, characterized in that 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 same axis, a second medium (23) is clamped in the second outer conductor (22), and a second inner conductor (24) axially penetrates through the second medium (23);

the second outer conductor (22) positioned between the insulator (21) and the second medium (23) is in contact with the radial line of the radial expansion convex ring (11 b).

Technical Field

The invention belongs to the field of radio frequency connectors, and particularly relates to a low intermodulation radio frequency connector.

Background

The existing blind-mate type product, such as an SMP type radio frequency connector, is divided into three parts: the escape end, the middle switching connecting rod and the unthreaded hole end; after the middle switching connecting rod part is installed at the escapement end, the switching connecting rod can deflect to a certain extent due to the influence of machining and assembling tolerance, uncertain gaps can be formed between the outer conductor of the switching connecting rod and the outer conductor of the escapement end after the switching connecting rod part deflects, and a large number of test results show that intermodulation is poor in the state or intermodulation is unstable in the vibration state. The product eliminates the gap problem generated after the outer conductor of the transfer connecting rod is matched with the outer conductor of the escapement end, and improves the intermodulation index and the intermodulation stability of the blind-mate product.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a low intermodulation radio frequency connector, which is characterized in that by reasonably arranging the component structure, when the outer conductor is subjected to plug-in electrical contact, the outer conductor is axially suspended and is only subjected to radial line contact at a certain position, and no redundant contact point is generated.

In order to achieve the purpose, the technical scheme adopted by the invention comprises the following steps:

a low intermodulation radio frequency connector comprises a first assembly, a second assembly and a third assembly, wherein the first assembly is provided with a first outer conductor, and the connecting end of the first outer conductor is provided with a radial expansion convex ring;

a second component in electrical contact with the first component, the second component providing a second outer conductor;

the first outer conductor is electrically contacted with the second outer conductor only through the radial expansion convex ring; the radial expanded convex ring is in contact with the inner wall of the second outer conductor only in a radial line mode.

Optionally, the first outer conductor is in electrical contact with the second outer conductor only through the radially enlarged convex ring after the first outer conductor and the second outer conductor are axially or radially deflected and butted.

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 same axis, a second medium is clamped in the second outer conductor, and a second inner conductor axially penetrates through the second medium; the second outer conductor between the insulator and the second medium is contacted with the radial line of the radial expansion convex ring.

Optionally, the second dielectric is a ring disc member, and a second dielectric boss surrounding the second inner conductor is arranged at one end of the ring disc member.

Optionally, the first outer conductor is provided with a plurality of radially deformable outer conductor members along the circumferential direction at the connecting end, and the periphery of the end of each radially deformable outer conductor member is provided with a radially-expanded convex ring.

Optionally, along the same axis, a first medium and a first inner conductor are sequentially sleeved in the first outer conductor;

the first outer conductor forms an annular gap with the first medium at the connecting end.

Furthermore, a plurality of inner conductor radial deformation pieces are arranged on the first inner conductor at the connecting end along the circumferential direction.

Further, the first medium forms a radial contraction section at the connecting end.

Furthermore, the first outer conductor is provided with a plurality of outer conductor radial deformation pieces along the circumferential direction at the connecting end, and the periphery of the end part of each outer conductor radial deformation piece is provided with a radial expansion convex ring.

Furthermore, at the end part, an insulator is coaxially embedded on the inner wall of the second outer conductor or the end part of the second outer conductor is coaxially connected with the insulator; along the same axis, a second medium is clamped in the second outer conductor, and a second inner conductor axially penetrates through the second medium; the second outer conductor between the insulator and the second medium is contacted with the radial line of the radial expansion convex ring.

According to the low-intermodulation radio frequency connector, by reasonably arranging the component structure, the outer conductor is axially suspended and only radially linearly contacted at a certain position when in plug-in electric contact, and no redundant contact point is generated.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a low intermodulation rf connector of the present invention;

FIG. 2 is a schematic structural view of a second assembly shown in FIG. 1;

FIG. 3 is a schematic structural view of the first assembly of FIG. 1;

fig. 4 is a schematic structural diagram of the low intermodulation rf connector after radial deflection according to the first aspect of the present invention;

fig. 5 is a schematic structural diagram of a low intermodulation rf connector after radial deflection according to a second embodiment of the present invention;

the reference numerals in the figures denote: 1-first component, 11-first outer conductor, 11 a-outer conductor radial deformation piece, 11 b-radial expansion convex ring, 12-first inner conductor, 12 a-inner conductor radial deformation piece, 13-first medium, 13 a-radial contraction section, 2-second component, 21(21 ') -insulator, 22 (') -second outer conductor, 23-second medium, 23 a-second medium convex plate and 24-second inner conductor.

Detailed Description

The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention. In the present disclosure, unless otherwise specified, use of the directional terms "upper" and "lower" generally refer to the definition in the drawing figures of the accompanying drawings, and "inner" and "outer" refer to the inner and outer of the contours of the corresponding parts.

With reference to fig. 1-5, the low intermodulation radio frequency connector of the present invention comprises a first module 1, the first module 1 is provided with a first outer conductor 11, and the connecting end of the first outer conductor 11 is provided with a radially enlarged convex ring 11 b; further comprising a second component 2 in electrical contact with the first component 1, the second component 2 being provided with a second outer conductor 22; the first outer conductor 11 and the second outer conductor 22 are electrically contacted only by the radially enlarged convex ring 11 b; the radially enlarged collar 11b makes only radial line contact with the inner wall of the second outer conductor 22. That is, it is shown that no matter what state the first component 1 is in contact with the second component 2, such as axial insertion, for example, radial deflection, the first outer conductor 11 and the second outer conductor 22 can be ensured to be electrically connected only at the position of the radially enlarged convex ring 11b, and the enlarged convex ring here is preferably an arc ring with smooth appearance, so as to ensure radial line contact, and minimize the occurrence of unnecessary redundant contact points, and when deflection occurs, the first outer conductor 11 and the second outer conductor 22 do not have contact or electrical connection at other positions, for example, 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 other non-enlarged positions can separate the first outer conductor 11 and the second outer conductor 22 through other insulating media when radial deflection occurs. The outer conductor is axially suspended when in plug-in electric contact, and only carries out radial line contact at a certain position, so that redundant contact points are not generated, the intermodulation performance and the stability of the blind-mate product are greatly improved, and the production and the market popularization are facilitated. Evaluation results show that the intermodulation performance and the stability of the blind-mate product are improved.

In the embodiment of the present disclosure, the first outer conductor 11 and the second outer conductor 22 are axially or radially deflected and butted and then electrically contacted only by the radially enlarged convex ring 11b, that is, the structure of the present disclosure at least ensures that no matter what state the first outer conductor 11 and the second outer conductor 22 are, for example, the states of axial direct insertion, radial deflected insertion and the like may occur during axial insertion, the radially enlarged convex ring 11b can only be electrically contacted with the inner wall of the second outer conductor 22 at a specific position, and other non-enlarged positions can separate the first outer conductor 11 and the second outer conductor 22 by other insulating media during radial deflection.

In the embodiment of the present disclosure, at the end, the insulator 21 is coaxially embedded on the inner wall of the second outer conductor 22 or the insulator 21 'is coaxially embedded at the end of the second outer conductor 22', both forms can satisfy the condition that the first outer conductor 11 and the second outer conductor 22 are separated and separated, and the radially expanded convex ring 11b is only in electrical contact with the inner wall of the second outer conductor 22 at a specific position; along the same axis, a second medium 23 is clamped in the second outer conductor 22, and a second inner conductor 24 axially penetrates through the second medium 23; the second outer conductor 22 between the insulator 21 and the second dielectric 23 is in contact with the radial line of the radially enlarged convex ring 11 b. For example, the first outer conductor 11 may be suspended in the axial direction without contacting any part of other components by the structural design of the second dielectric 23.

In the embodiment of the present disclosure, for example, the second medium 23 is a ring disc member, and a second medium boss 23a surrounding the second inner conductor 24 is disposed at one end of the ring disc member, so that an axial recessed space appears at an edge of the second medium 23 close to the second outer conductor 22, which can realize axial suspension when the first outer conductor 11 and the second outer conductor 22 are axially plugged together, so that the second medium boss 23a abuts against the medium of the first assembly 1.

In the embodiment of the present disclosure, the first outer conductor 11 is provided with a plurality of radially deformable outer conductor members 11a at the connection end along the circumferential direction, and the outer circumference of the end of the radially deformable outer conductor member 11a is provided with a radially enlarged convex ring 11 b. The radially enlarged convex ring 11b of the present invention is preferably disposed on the radially deformable outer conductor member 11a, so as to allow radial elastic deformation when the first outer conductor 11 is inserted into the second outer conductor 22, thereby ensuring stable signal transmission between the first outer conductor 11 and the second outer conductor 22 while making radial line contact with each other.