CN219106565U

CN219106565U - Radio frequency connector for plates

Info

Publication number: CN219106565U
Application number: CN202223460294.5U
Authority: CN
Inventors: 张景良; 陈素珍
Original assignee: Xi'an Leihang Electronic Information Technology Co ltd
Current assignee: Xi'an Leihang Electronic Information Technology Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-05-30
Anticipated expiration: 2032-12-23

Abstract

The utility model relates to an electric radio frequency connector, in particular to a radio frequency connector for plates, which solves the technical problem that after an inner conductor is connected in a traditional feed antenna, printed plate connection and modularized connection mode, an outer conductor is difficult to reliably connect, so that radio frequency leakage is caused. The radio frequency connector for the plates comprises a shell, an insulating medium, an inner conductor and a reed, wherein the shell, the insulating medium, the inner conductor and the reed are coaxially arranged between two outer plates; the axes of the shell, the insulating medium, the inner conductor and the reed are vertical to the external printed board; the insulating medium is arranged in the shell, and the outer surface of the insulating medium is matched with the inner surface of the shell; the inner conductor is inserted into the insulating medium, and both ends of the inner conductor extend out of the insulating medium and are respectively connected with the two external plates; one end of the reed is arranged between the shell and the insulating medium, and the other end of the reed extends out of the shell and the insulating medium and is used for being connected with an external plate.

Description

Radio frequency connector for plates

Technical Field

The utility model relates to an electric radio frequency connector, in particular to a radio frequency connector for plates.

Background

The development history of the radio frequency coaxial connector is only a few decades, but the radio frequency coaxial connector has a good broadband transmission characteristic and a plurality of convenient connection modes, so that the radio frequency coaxial connector is widely applied to communication equipment, instruments and appliances.

With the development of information technology, various electronic devices represented by modern wireless communication, satellite communication, ship communication and radar stealth are developing toward miniaturization and micromation, and various wireless transmission modes are putting higher and higher demands on the application of the electronic technology. Feed antennas, printed board-to-board connections, and modular connections are more important factors that must be considered by system design. After the inner conductors are connected in the traditional connection modes of feed antennas, printed board connection, modularized connection and the like, the outer conductors cannot be connected reliably due to the influences of factors such as part flatness, board height tolerance and the like, and radio frequency leakage is large.

Disclosure of Invention

The utility model aims to solve the technical problem that the outer conductor is difficult to connect reliably after the inner conductor is connected in the traditional feed antenna, printed board connection and modularized connection mode, so that radio frequency leakage is caused, and provides a radio frequency connector for boards.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the radio frequency connector for the plates is characterized by comprising a shell, an insulating medium, an inner conductor and a reed which are coaxially arranged between two external printed plates;

the axes of the shell, the insulating medium, the inner conductor and the reed are vertical to the external printed board;

the insulating medium is arranged in the shell, and the outer surface of the insulating medium is matched with the inner surface of the shell;

the inner conductor is inserted into the insulating medium, and both ends of the inner conductor extend out of the insulating medium and are respectively connected with the two external printed boards;

one end of the reed is arranged between the shell and the insulating medium, and the other end of the reed extends out of the shell and the insulating medium and is used for being connected with an external printed board.

Further, the reed comprises an annular body, a plurality of L-shaped elastic conductors connected with the annular body;

the annular body is arranged between the shell and the insulating medium;

one end of the elastic conductor is connected with the annular body, and the other end of the elastic conductor is positioned outside the shell and the insulating medium and is used for being connected with an external printed board.

Further, a first shaft shoulder and an annular bulge are arranged on the inner surface of the shell;

the outer surface of the insulating medium is provided with a first step corresponding to the first shaft shoulder position and a second step corresponding to the annular bulge position;

the first shaft shoulder is matched with the first step;

the annular protrusion is matched with the second step.

Further, protruding points are arranged on the inner surface of the annular body and used for being in abutting installation with the insulating medium.

Further, an inserting protrusion is arranged at one end, far away from the elastic conductor, of the shell, and the inserting protrusion is used for being fixedly connected with an external printed board.

Further, the plug-in protrusions are uniformly arranged along the end face of one end, far away from the elastic conductor, of the shell along the circumferential direction;

the salient points are uniformly arranged on the inner surface of the annular body along the circumferential direction.

Further, the inner conductor is an elastomer.

Further, the antenna also comprises a second shoulder arranged on the inner surface of one end of the shell, which is close to the elastic conductor, and the second shoulder is used for compensating impedance discontinuity caused by the transmission line clearance.

Further, the number of the plug-in protrusions is 4;

the number of the convex points is 4.

Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:

1. the radio frequency connector for the plates adopts the shell, the insulating medium, the inner conductor and the reed which are coaxially arranged between the external printed boards, so that the inner conductor and the outer conductor (namely the reed) of the radio frequency connector for the plates are reliably connected, and the problem of radio frequency leakage is avoided.

2. According to the radio frequency connector for the plates, the outer conductor is connected with the plurality of L-shaped elastic conductors by adopting the annular body, so that elastic connection is formed between the outer conductor and the external printed board, and when the end face of the elastic conductor is stressed, the reliable connection between the outer conductor and the external printed board can be ensured; in addition, the convex points on the annular body can form stable connection with the shell and the insulating medium.

3. The radio frequency connector for the plates is characterized in that a first shaft shoulder and an annular bulge are arranged on the inner surface of the shell; a first step corresponding to the first shaft shoulder position and a second step corresponding to the annular bulge position are arranged on the outer surface of the insulating medium; the first shaft shoulder is matched with the first step; the annular protrusion is matched with the second step. Further ensuring the stable connection between the shell and the insulating medium. One end of the shell, which is far away from the elastic sheet, can be welded with an external printed board through the inserting protrusion, so that the connection is more reliable.

4. The radio frequency connector for the plates is characterized in that the inner conductor is an elastic body, and the inner conductor and the external printed plate can be completely connected.

5. The radio frequency connector for the plates can form good radio frequency transmission by impedance matching, namely, maintaining the characteristic impedance as equal as possible to the nominal impedance on each cross section of the coaxial transmission line.

6. The radio frequency connector for the boards can be used for multi-path close arrangement among external printed boards, miniaturization and microminiaturization of components are the precondition of miniaturization of a complete machine system, and high-density installation can be realized by adopting the miniaturized components, so that more space is saved.

7. The utility model relates to a radio frequency connector for plates, which is a novel connector applicable to the fields of aviation, aerospace, communication systems and military information.

Drawings

Fig. 1 is a schematic structural view of an rf connector for use between boards according to the present utility model.

Fig. 2 is a schematic structural view of a housing in an embodiment of the inter-board rf connector of the present utility model.

Fig. 3 is a left side view of fig. 2.

Fig. 4 is a schematic diagram showing the structure of a reed in an embodiment of the inter-board rf connector of the present utility model.

Fig. 5 is a left side view of fig. 4.

Fig. 6 is a schematic diagram of a state before plugging in an embodiment of the rf connector for use between boards according to the present utility model.

Fig. 7 is a schematic diagram of a state after the board-to-board rf connector of the present utility model is plugged.

The reference numerals in the drawings are:

1-shell, 11-plug-in protrusion, 12-first shaft shoulder, 13-annular protrusion, 14-second shaft shoulder, 2-insulating medium, 21-first step, 22-second step, 3-inner conductor, 4-reed, 41-annular body, 42-elastic conductor and 43-bump.

Detailed Description

As shown in fig. 1, the radio frequency connector for the inter-board of the present utility model comprises a housing 1, an insulating medium 2, an inner conductor 3 and a reed 4 which are arranged between two external printed boards;

the shell 1, the insulating medium 2, the inner conductor 3 and the reed 4 are coaxially arranged; the insulating medium 2 is arranged inside the shell 1, and the outer surface of the insulating medium 2 is matched with the inner surface of the shell 1; the inner conductor 3 is inserted into the insulating medium 2, and both ends of the inner conductor 3 extend out of the insulating medium 2 and are connected with an external printed board, or one end of the connecting reed 4 is arranged between the shell 1 and the insulating medium 2, and the other end extends out of the shell 1 and the insulating medium 2 and is used for being connected with the external printed board.

As shown in fig. 1, 2 and 3, a first shaft shoulder 12, an annular protrusion 13 and a second shaft shoulder 14 are arranged on the inner surface of the housing 1;

a first step 21 corresponding to the position of the first shaft shoulder 12 and a second step 22 corresponding to the position of the annular bulge 13 are arranged on the outer surface of the insulating medium 2; the first shaft shoulder 12 is matched with the first step 21; the annular projection 13 is adapted to the second step 22.

As shown in fig. 1, 4 and 5, the reed 4 includes a ring-shaped body 41, a plurality of L-shaped elastic conductors 42 connected to the ring-shaped body 41; the annular body 41 is arranged between the housing 1 and the insulating medium 2; one end of the elastic conductor 42 is connected with the annular body 41, and the other end is positioned outside the shell 1 and the insulating medium 2 and is used for being connected with an external printed board; 4 protruding points 43 are uniformly arranged on the inner surface of the annular body 41, and the protruding points 43 are used for abutting against the insulating medium 2. In this embodiment, the inner conductor 3 is an elastomer. 4 plugging bulges 11 are uniformly arranged at one end of the shell 1 far away from the elastic conductor 42, and the plugging bulges 11 are used for fixedly connecting with an external printed board; the second shoulder 14 is disposed on the inner surface of the other end of the housing 1, and the second shoulder 14 is disposed near the elastic conductor 42 for compensating impedance discontinuity caused by the transmission line clearance.

In the radio frequency connector for the plates, the annular body 41 and the plurality of L-shaped elastic conductors 42 are utilized to realize the simultaneous connection of the inner conductor 3 and the outer conductor (namely, the reed 4 formed by the annular body 41 and the plurality of L-shaped elastic conductors 42), and the radio frequency connector is reliable in connection, small in leakage and applicable to the fields of aviation, aerospace, communication systems and military information. Wherein the bumps 43 on the annular body 41 form a stable connection with the housing 1 and the insulating medium 2. The housing 1 and the external printed board can be soldered by the insertion projection 11 to achieve higher reliability.

The working principle or working procedure of the above embodiment is as follows:

as shown in fig. 6 and 7, an external printed board is welded and fixed with the plugging protrusion 11 in the radio frequency connector of the present utility model, and the inner conductor 3 is welded with the microstrip line of the external printed board; the other external printed board is used as a bonding pad and is directly attached to the inner conductor 3 and the reed 4 of the connector, so that the connector is more convenient and has smaller error compared with the traditional plug-and-socket type board connection.

Claims

1. The radio frequency connector for the plates is characterized by comprising a shell (1), an insulating medium (2), an inner conductor (3) and a reed (4) which are coaxially arranged between two external printed plates;

the axes of the shell (1), the insulating medium (2), the inner conductor (3) and the reed (4) are perpendicular to the external printed board;

the insulation medium (2) is arranged inside the shell (1), and the outer surface of the insulation medium (2) is matched with the inner surface of the shell (1);

the inner conductor (3) is inserted into the insulating medium (2), and both ends of the inner conductor (3) extend out of the insulating medium (2) and are respectively connected with two external printed boards;

one end of the reed (4) is arranged between the shell (1) and the insulating medium (2), and the other end of the reed extends out of the shell (1) and the insulating medium (2) and is used for being connected with an external printed board.

2. An inter-board radio frequency connector according to claim 1, wherein:

the reed (4) comprises an annular body (41) and a plurality of L-shaped elastic conductors (42) connected with the annular body (41);

the annular body (41) is arranged between the shell (1) and the insulating medium (2);

one end of the elastic conductor (42) is connected with the annular body (41), and the other end of the elastic conductor is positioned outside the shell (1) and the insulating medium (2) and is used for being connected with an external printed board.

3. An inter-board radio frequency connector according to claim 2, wherein:

the inner surface of the shell (1) is provided with a first shaft shoulder (12) and an annular bulge (13);

a first step (21) corresponding to the position of the first shaft shoulder (12) and a second step (22) corresponding to the position of the annular bulge (13) are arranged on the outer surface of the insulating medium (2);

the first shaft shoulder (12) is matched with the first step (21);

the annular bulge (13) is matched with the second step (22).

4. A radio frequency connector for use between boards according to claim 2 or 3, wherein:

the inner surface of the annular body (41) is provided with a convex point (43), and the convex point (43) is used for being in abutting installation with the insulating medium (2).

5. An inter-board radio frequency connector according to claim 4, wherein:

one end of the shell (1) far away from the elastic conductor (42) is provided with a plug-in protrusion (11), and the plug-in protrusion (11) is used for being fixedly connected with an external printed board.

6. An inter-board radio frequency connector according to claim 5, wherein:

the splicing bulges (11) are uniformly arranged along the end face of one end, far away from the elastic conductor (42), of the shell (1) along the circumferential direction;

the salient points (43) are uniformly arranged on the inner surface of the annular body (41) along the circumferential direction.

7. An inter-board radio frequency connector according to claim 6, wherein:

the inner conductor (3) is an elastomer.

8. An inter-board radio frequency connector according to claim 7, wherein:

the antenna also comprises a second shoulder (14) arranged on the inner surface of one end of the shell (1) close to the elastic conductor (42), and the second shoulder is used for compensating impedance discontinuity caused by the transmission line clearance.

9. An inter-board radio frequency connector according to claim 8, wherein:

4 plug-in protrusions (11);

the number of the convex points (43) is 4.