WO2020000638A1

WO2020000638A1 - Communication connection structure

Info

Publication number: WO2020000638A1
Application number: PCT/CN2018/103861
Authority: WO
Inventors: 黄克猛; 梁国; 徐可; 陈伟
Original assignee: 吴通控股集团股份有限公司
Priority date: 2018-06-27
Filing date: 2018-09-03
Publication date: 2020-01-02
Also published as: CN108808377A; CN108808377B

Abstract

Disclosed in the present invention is a communication connection structure, comprising an integrated ground conductor, the ground conductor has a metal frame structure and comprises abutment members on left and right sides; a plurality of cavities are provided in the ground conductor; inner conductor male terminals are provided in the cavities, on one side of the ground conductor, and inner conductor female terminals are provided in the cavities, on the other side of the ground conductor; each inner conductor female terminal is a sleeve internally provided with a through hole; the inner conductor male terminals are inserted into the through holes and extend out of the through holes; and the inner conductor male terminals and the inner conductor female terminals are connected, so as to realize electrical connection of the ground conductor on the left and right sides. By means of the connection structure of the present invention, standardization of large-scale antennas and convenience in equipment mounting are facilitated, realizing large-scale blind mating, and improving the reliability of system connection.

Description

Communication connection structure

Technical field

The invention relates to the technical field of electrical connections, and in particular to a communication connection structure.

Background technique

As communication enters the 5G era, base station equipment is gradually expanding to large-scale array antennas and integrated and integrated. The interconnection of antennas and RF front-ends has become an important factor limiting the integration of products, which is mainly reflected in the antenna and AAU part through the board. The connection part of the board connector. In actual use, the board-to-board connector mainly includes three components, two sockets distributed on two PCB boards or modules, and one adapter connected to two sockets. The current antenna and AAU parts are often completed by different manufacturers. After the antenna part and the AAU part are designed, they are connected by board-to-board connectors. In order to deal with large-scale arrays, many board-to-board connectors are often connected in structure. Device array, such that the cumulative tolerance of the product is concentrated on the board-to-board connector that requires blind insertion, and the board-to-board connector must have a strong tolerance. Therefore, how to solve the above problems is what existing engineers need to study. direction.

Summary of the invention

The object of the present invention is to provide a communication connection structure. By using the connection structure, the multiple connections of large-scale antennas and large-scale RF front-ends are converted into the overall connection of ground conductors, and the positions of accumulated tolerances are changed to realize the integration of the product. It is conducive to the standardization of large-scale antennas and the convenience of equipment installation to achieve large-scale blind insertion. At the same time, it is convenient to quickly and efficiently detect the accuracy of insertion and improve the reliability of system connection.

In order to achieve the above object, the technical solution adopted by the present invention is: a communication connection structure including an integrated ground conductor, the ground conductor is a metal frame structure, and is divided into left and right abutting pieces, and the ground conductor A plurality of cavities are provided on the one side, a male end of the inner conductor is provided in the grounding conductor cavity on one side, and a female end of the inner conductor is provided in the cavity on the other side of the grounding conductor. Through-hole, the male end of the inner conductor is inserted into the through-hole and exposed outside the through-hole, and the male end of the inner conductor is mated with the female end of the inner conductor to realize the ground conductors on the left and right sides. Electrical connection.

In the above technical solution, the cavities are arranged in an M × N array on the ground conductor, where M> 1 and N> 1.

In the above technical solution, the male end of the inner conductor includes a needle, a guide, a joint, and a tail end. The total length of the needle, the guide, and the joint is greater than the length of the female end of the inner conductor. After the end is inserted into the female end of the inner conductor, the needle is located outside the female end sleeve of the inner conductor.

In the above technical solution, the outer diameter of the guide portion is smaller than the outer diameter of the joint portion, a gap is provided between the outer edge surface of the guide portion and the inner wall of the through hole, and a transition portion is provided between the guide portion and the joint portion. The transition portion constitutes a guide slope.

In the above technical solution, the male end of the internal conductor and the female end of the internal conductor are fixed in the cavity through an insulating medium, and the male end of the internal conductor, the female end of the internal conductor and the cavity form a radio frequency signal transmission channel.

In the above technical solution, the cavity is circular, square, triangular, or other machinable shapes.

In the above technical solution, a positioning device is provided on the ground conductor, and the positioning device is composed of a positioning pin provided on one ground conductor and a positioning hole provided on the other ground conductor.

In the above technical solution, a conductive rubber layer is provided between the left and right ground conductors.

In the above technical solution, the left ground conductor is a PCB reflecting plate, the right ground conductor is a shielding cavity of an active antenna unit or the left ground conductor is a shielding cavity of an active antenna unit, and the right ground conductor is a PCB reflecting plate.

Another technical solution is that the cavities are arranged in a vertical array on the ground conductor.

Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art:

1. In the present invention, the ground conductor is a metal frame structure, which is divided into two parts on the left and right sides. A positioning pin is provided on one side of the ground conductor, and a positioning hole is provided on the other side of the ground conductor. The male end of the inner conductor and the female end of the inner conductor are accurately positioned, the location of the accumulated tolerance is changed, the complexity of the product is reduced, and blind insertion is achieved.

2. A plurality of cavities are provided on the grounding conductor, and the cavities are arranged in an M × N array or vertical arrangement on the grounding conductor, which is conducive to the standardization of large-scale antennas and the convenience of equipment installation. Large-scale blind insertion.

3. An inner conductor male end is provided in one side of the ground conductor cavity, and an inner conductor female end is provided in the other side of the ground conductor cavity. The inner conductor female end is a sleeve, and a through hole is provided in the inside. The male end of the inner conductor is inserted into the through hole and exposed outside the through hole. The simple structural design allows the male end of the inner conductor to be inserted into the through hole of the female end of the inner conductor, and the needle is exposed to the through hole. Outside the hole, it is convenient to quickly and efficiently detect whether the insertion is accurate, to avoid the entire system from being damaged due to the blind insertion force during blind insertion, and to improve the reliability of the system connection.

4. The outer diameter of the guide portion is smaller than the outer diameter of the joint portion, and a gap is provided between the outer edge surface of the guide portion and the inner wall of the through hole, so as to ensure that The male pin of the conductor and the guide are not subject to force in the through hole.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a ground conductor provided with a male end of an inner conductor in Embodiment 1 of the present invention;

FIG. 2 is a partially enlarged view of A in FIG. 1; FIG.

3 is a schematic structural diagram of a ground conductor provided with an inner conductor female end according to the first embodiment of the present invention;

4 is a schematic diagram of a communication connection structure in Embodiment 1 of the present invention;

5 is a schematic diagram of a male end of an inner conductor in Embodiment 1 of the present invention;

6 is a schematic diagram of a female end of an inner conductor in Embodiment 1 of the present invention;

FIG. 7 is a schematic diagram of a male terminal of an inner conductor and a female terminal of the inner conductor according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic diagram of a frame structure in Embodiment 2 of the present invention.

Among them: 1. Ground conductor; 2. Cavity; 3. Male end of inner conductor; 4. Female end of inner conductor; 5. Through hole; 6. Needle; 7. Guide; 8. Joint; 9. Tail end ; 10, positioning pin; 11, positioning hole.

detailed description

The invention is further described below with reference to the drawings and embodiments:

First Embodiment: As shown in FIGS. 1 to 7, a communication connection structure includes an integrated grounding conductor 1. The grounding conductor 1 is a metal frame structure and is divided into left and right butt joints. The conductor 1 is provided with a plurality of cavities 2. The inner conductor male end 3 is disposed in the cavity 2 on one side of the ground conductor 1 and the inner conductor female end 4 is disposed in the cavity 2 on the other side. 4 is a sleeve, which is provided with a through hole 5 inside, the inner conductor male end 3 is inserted into the through hole 5 and exposed outside the through hole 5, and the inner conductor male end 3 and The butt joint of the inner conductor female end 4 realizes the electrical connection of the ground conductors 1 on the left and right sides, and the inner conductor male end 3 and the inner conductor female end 4 are connected by a plug connection or a touch connection.

In order to achieve the standardization of large-scale antennas and the convenience of equipment installation and large-scale blind insertion, as shown in FIGS. 1 to 4, the cavities 2 are arranged in an M × N array on the ground conductor 1, where M > 1, N> 1.

In order to be able to quickly and efficiently detect whether the insertion is accurate and avoid damage to the entire system due to blind insertion force during blind insertion, the male end 3 of the inner conductor includes a needle 6, a guide 7, a joint 8, and a tail 9 The total length of the needle 6, the guide 7, and the joint 8 is greater than the length of the inner conductor female end 4. After the inner conductor male end 3 and the inner conductor female end 4 are mated, the needle 6 is located in the The outer sleeve of the inner conductor female end 4 is shown in Figs. 5-7.

5, the outer diameter of the guide portion 7 is smaller than the outer diameter of the joint portion 8. A gap is provided between the outer edge surface of the guide portion 7 and the inner wall of the through hole 5. The guide portion 7 and the joint portion 8 A transition portion is provided between the transition portion, and the transition portion constitutes a guide inclined surface. A closing structure is provided at a position where the inner wall of the through hole 5 is in contact with the joint portion. The closing structure is formed by an inclined surface inclined toward the center line of the through hole 5. There are several notches on the wall of the closing structure, forming elastic claws, to ensure that the male end 3 of the inner conductor 3 and the lead 6 and the guide part before the joint 8 contacts the inner wall of the through hole 5 of the inner conductor female end 4 7 There is no force in the through hole 5.

1 to 7, the inner conductor male end 3 and the inner conductor female end 4 are fixed in the cavity 2 through an insulating medium. The inner conductor male end 3, the inner conductor female end 4 and the air cavity The cavity 2 constitutes a radio frequency signal transmission channel.

As shown in FIGS. 1 to 4, the cavities 2 are circular, square, triangular, or other machinable shapes. The spacing between the cavities 2 is λn / 2, λ is the operating wavelength of the interface system, and n> 0.

A positioning device is provided on the ground conductor 1. The positioning device is composed of a positioning pin 10 provided on one side of the ground conductor 1 and a positioning hole 11 provided on the other side of the ground conductor 1. Position the inner conductor male end 3 and the inner conductor female end 4 precisely, change the position where the tolerance accumulates, reduce the complexity of the product, and achieve blind insertion, as shown in FIG. 4.

As shown in FIGS. 1 to 4, a conductive rubber layer is provided between the ground conductors 1 on the left and right sides.

1 to 4, the left ground conductor 1 is a PCB reflecting plate, the right ground conductor 1 is an active antenna unit shield cavity or the left ground conductor 1 is an active antenna unit shield cavity, and the right ground conductor 1 is PCB reflector.

Second embodiment: See FIG. 8 for a communication connection structure. In this embodiment, the structure is similar to the first embodiment, except that the cavities 2 are arranged in a vertical array on the ground conductor 1 The positioning pin 10 includes a plurality of positioning pins 10 having different lengths and forming a step shape.

The above embodiments are only for explaining the technical concept and features of the present invention, and the purpose thereof is to enable persons familiar with the technology to understand the contents of the present invention and implement them accordingly, and shall not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered by the protection scope of the present invention.

Claims

A communication connection structure is characterized in that it includes an integrated ground conductor, the ground conductor is a metal frame structure, and is divided into left and right abutting pieces. A plurality of cavities are provided on the ground conductor. An inner conductor male end is provided in the side ground conductor cavity, and an inner conductor female end is provided in the other side ground conductor cavity. The inner conductor female end is a sleeve, and a through hole is provided in the inner conductor male end. It is inserted into the through hole and is exposed outside the through hole. The male end of the inner conductor and the female end of the inner conductor are butted to realize the electrical connection of the left and right ground conductors.
The communication connection structure according to claim 1, wherein the cavities are arranged in an M × N array on the ground conductor, where M> 1, N> 1.
The communication connection structure according to claim 1, wherein the cavities are arranged in a vertical array on the ground conductor.
The communication connection structure according to claim 1, wherein the male end of the inner conductor includes a needle, a guide, a joint, and a tail end, and a total length of the needle, the guide, and the joint is longer than the inner The length of the female end of the conductor. After the male end of the internal conductor is mated with the female end of the internal conductor, the needle is located outside the sleeve of the female end of the internal conductor.
The communication connection structure according to claim 4, wherein the outer diameter of the guide portion is smaller than the outer diameter of the coupling portion, a gap is provided between the outer edge surface of the guide portion and the inner wall of the through hole, and the guide portion and the A transition portion is provided between the joint portions, and the transition portion constitutes a guide slope.
The communication connection structure according to claim 1, wherein the inner conductor male end and the inner conductor female end are fixed in the cavity through an insulating medium, and the inner conductor male end, the inner conductor female end, and the The cavity constitutes a radio frequency signal transmission channel.
The communication connection structure according to claim 1, wherein the cavity is circular, square, triangular, or other machinable shape.
The communication connection structure according to claim 1, wherein a positioning device is provided on the ground conductor, and the positioning device includes a positioning pin provided on one side of the ground conductor and a positioning pin provided on the other side of the ground conductor. Composition of positioning holes.
The communication connection structure according to claim 1, wherein a conductive rubber layer is provided between the left and right ground conductors.
The communication connection structure according to claim 1, characterized in that: the left ground conductor is a PCB reflection plate, the right ground conductor is a shield cavity of the active antenna unit, or the left ground conductor is a shield cavity of the active antenna unit, and the right side The ground conductor is a PCB reflector.