CN219227952U

CN219227952U - Integrated coupling structure

Info

Publication number: CN219227952U
Application number: CN202223587539.0U
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: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-20
Anticipated expiration: 2032-12-30

Abstract

The utility model provides an integrated coupling structure which is used for solving the technical problems of complex coupling structure, high cost, limited application range and the like in the prior art. The integrated coupling structure comprises a first connector, a second connector and a coupler arranged between the first connector and the second connector, wherein the coupler comprises a shell, an inner conductor and a printed board, a coupling cavity is defined between the shell and the printed board, the inner conductor is positioned in the coupling cavity, and two ends of the inner conductor are respectively connected with the first connector and the second connector.

Description

Integrated coupling structure

Technical Field

The utility model relates to a coupling printed board, in particular to an integrated coupling structure.

Background

With the rapid development of wireless communication technology, demands for wireless communication devices are increasing, and various devices are layered endlessly, which has prompted the development of wireless communication devices toward conformality. With the continuous upgrade of wireless communication electronic devices, higher and higher requirements are also put on the performance of antennas. Antennas are an important component of phased array radar, whose function is to convert the waveguide field generated by the transmitter into a spatial radiation field and to receive the spatial echoes emitted by the target, the performance and cost of the antenna determining to a large extent the overall performance and cost of the radar.

With the increasing requirements of wireless communication on antennas, higher requirements are also put on signal monitoring/coupling, and two or more wireless communication services are generally required to be supported by one antenna in a wider frequency range, so that the signal coupling structure is required to be simple, convenient and easy to adjust, and further multi-band services can be realized. The existing coupling printed board is used for directly connecting the printed board and the connector, the connection mode is complex, the cost is high, and the coupling degree cannot be adjusted at the same time, if one connector is replaced, the coupling degree cannot be suitable.

Disclosure of Invention

The utility model aims to provide an integrated coupling structure which is used for solving the technical problems of complex coupling structure, high cost, limited application range and the like in the prior art.

In order to achieve the above object, the technical solution of the present utility model is as follows:

an integrated coupling structure, includes first connector, second connector and sets up the coupler between first connector and second connector, its characterized in that:

the coupler comprises a shell, an inner conductor and a printed board;

the shell is connected with the printed board, a coupling cavity is defined between the shell and the printed board, the inner conductor is positioned in the coupling cavity, and two ends of the inner conductor are respectively connected with the first connector and the second connector;

the shell is characterized in that a plurality of connector mounting holes are respectively formed in two sides of the shell, and the first connector and the second connector are respectively fixed on the shell through the connector mounting holes and fastening screws.

Further, the printed circuit board comprises a cover plate, and the cover plate is positioned on the outer side of the printed circuit board and connected with the printed circuit board.

Further, the coupling cavities are rectangular cavities or semicircular cavities, the number of the coupling cavities is one or more, and each coupling cavity is internally provided with an inner conductor.

Further, a medium is filled in the coupling cavity, and the medium is polytetrafluoroethylene.

Further, the shell is also provided with a printed board mounting hole, and the printed board is fixed on the shell through the printed board mounting hole and the fastening screw.

Further, the printed board is connected with the shell through welding or pressing.

Further, the printed board and the cover plate are connected in a welding or screw fastening mode.

Further, the printed board comprises a basal layer, an intermediate layer and a surface layer which are sequentially arranged from inside to outside; the substrate layer is close to the coupling cavity and is abutted with the shell; the surface layer is abutted with the cover plate.

Further, the shell is gold-plated on the surface close to the basal layer.

Compared with the prior art, the utility model has the following beneficial effects:

1. the integrated coupling structure comprises a first connector, a second connector and a coupler arranged between the first connector and the second connector, wherein the coupler comprises a shell, an inner conductor and a printed board, a coupling cavity is defined between the shell and the printed board, the inner conductor is positioned in the coupling cavity, and two ends of the inner conductor are respectively connected with the first connector and the second connector. The integrated coupling structure can adjust the coupling degree by adjusting the mounting gap between the printed board and the shell, increases the bandwidth, further improves the application range of the coupling structure, has simple integral structure and lower production cost, and can be popularized and used in batches.

2. The integrated coupling structure is different from the traditional multi-layer printed board coupling structure, and the input impedance level is easier to control.

3. Compared with the existing printed board structure, the integrated coupling structure has small volume, is integrally designed, has relatively simple manufacturing process and high integration level, and meets the requirement of miniaturization of modern equipment.

Drawings

FIG. 1 is a schematic diagram of an embodiment of an integrated coupling structure according to the present utility model;

FIG. 2 is a schematic view of a part of a housing of an embodiment of an integrated coupling structure according to the present utility model;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic diagram of a coupling portion of an embodiment of an integrated coupling structure according to the present utility model;

fig. 5 is a bottom view of fig. 4.

Reference numerals:

1-first connector, 2-second connector, 3-casing, 31-connector mounting hole, 32-printed board mounting hole, 33-coupler fixed orifices, 4-inner conductor, 5-printed board, 6-coupling chamber, 7-apron.

Detailed Description

In the following detailed description of the embodiments of the present utility model, reference is made to the accompanying drawings and examples, in which it is to be noted that the terms "first," "second," etc. are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.

As shown in fig. 1 to 5, the present utility model provides an integrated coupling structure, which comprises a first connector 1, a second connector 2, and a coupler disposed between the first connector 1 and the second connector 2, wherein the coupler comprises a housing 3, an inner conductor 4, and a printed board 5, the housing 3 and the printed board 5 are connected, a coupling cavity 6 is defined between the housing 3 and the printed board 5, the inner conductor 4 is located in the coupling cavity 6, and two ends of the inner conductor 4 are respectively connected with the first connector 1 and the second connector 2. The size of the coupling cavity 6 can be adjusted according to practical situations, and the coupling performance of the coupler can be adjusted in an installation stage by adjusting the installation gap between the printed board 5 and the shell 3.

In this embodiment, a plurality of connector mounting holes 31 are respectively provided on both sides of the housing 3, and the first connector 1 and the second connector 2 are respectively fixed to the housing 3 through the connector mounting holes 31 and the fastening screws. The shell 3 is also provided with a plurality of printed board mounting holes 32, and the printed board 5 is fixed on the shell 3 through the printed board mounting holes 32 and the fastening screws; as a preferred option, the printed board 5 may also be connected to the housing 3 by welding or press-fitting. The structure of the housing 3 is not limited, and the sizes of the connector mounting hole 31 and the printed board mounting hole 32 are not limited, so that the connector can be suitable for various types of connectors, and wireless communication services in different frequency ranges can be realized.

The housing 3 is further provided with a plurality of coupler fixing holes 33 for fixing the mounted coupler to other devices, thereby improving applicability thereof.

The integrated coupling structure of the utility model further comprises a cover plate 7, wherein the cover plate 7 is positioned at the outer side of the printed board 5 and is connected with the printed board 5, and is used for grounding and protecting the printed board 5, so that the working stability of the printed board 5 is improved.

In this embodiment, the printed board 5 has a three-layer structure, including a base layer, an intermediate layer and a surface layer sequentially disposed from inside to outside, where the base layer of the printed board 5 is close to the housing 3 and abuts against the housing 3. The side of the housing 3 close to the substrate layer is gold plated, whereby better electrical properties are obtained. The surface layer of the printed board 5 is connected to the cover plate 7, typically by welding or screw fastening. The structure of the printed board 5 can also be set to be a multi-layer (such as two-layer, four-layer, five-layer and the like) structure according to actual requirements, so that the coupling degree of the coupling structure is improved.

In this embodiment, the coupling cavities 6 are rectangular cavities or semicircular cavities, or cavities with other structures, the number of the coupling cavities 6 is one or more, and each coupling cavity 6 is provided with an inner conductor 4. The coupling cavity 6 can be filled with no medium, so that air coupling is realized; the medium can also be filled, and medium coupling is realized by filling medium such as polytetrafluoroethylene or engineering plastic.

As shown in fig. 4 and 5, a is a coupling portion, B is a microstrip line of the printed board 5, and the coupling degree can be adjusted by adjusting the relative position of the inner conductor 4 and the printed board 5 or adjusting the width of the inner conductor 4, so as to increase the bandwidth and improve the application range of the coupling structure.

The integrated coupling structure is different from the traditional multi-layer printed board coupling structure, and the input impedance level is easy to control. In addition, compared with the existing printed board structure, the coupling structure is of an integrated design, the manufacturing process is relatively simple, the integration level is high, the production cost is low, the requirement of miniaturization of modern equipment is met, and the coupling structure can be popularized and used in batches.

Although embodiments of the present utility model have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model.

Claims

1. An integrated coupling structure comprising a first connector (1), a second connector (2), and a coupler arranged between the first connector (1) and the second connector (2), characterized in that:

the coupler comprises a shell (3), an inner conductor (4) and a printed board (5);

the shell (3) is connected with the printed board (5), a coupling cavity (6) is formed between the shell and the printed board, the inner conductor (4) is positioned in the coupling cavity (6), and two ends of the inner conductor (4) are respectively connected with the first connector (1) and the second connector (2);

a plurality of connector mounting holes (31) are respectively formed in two sides of the shell (3), and the first connector (1) and the second connector (2) are respectively fixed on the shell (3) through the connector mounting holes (31) and fastening screws.

2. An integrated coupling structure according to claim 1, wherein:

the printed circuit board also comprises a cover plate (7), wherein the cover plate (7) is positioned at the outer side of the printed circuit board (5) and is connected with the printed circuit board (5).

3. An integrated coupling structure according to claim 2, wherein:

the coupling cavities (6) are rectangular cavities or semicircular cavities, the number of the coupling cavities (6) is one or more, and each coupling cavity (6) is internally provided with an inner conductor (4).

4. An integrated coupling structure according to claim 3, wherein:

the coupling cavity (6) is filled with a medium, and the medium is polytetrafluoroethylene.

5. An integrated coupling structure according to claim 4, wherein:

the shell (3) is also provided with a plurality of printed board mounting holes (32), and the printed board (5) is fixed on the shell (3) through the printed board mounting holes (32) and the fastening screws.

6. An integrated coupling structure according to claim 4, wherein:

the printed board (5) is connected with the shell (3) in a welding or pressing mode.

7. An integrated coupling structure according to claim 5 or 6, characterized in that:

the printed board (5) is connected with the cover board (7) through welding or screw fastening.

8. An integrated coupling structure according to claim 7, wherein:

the printed board (5) comprises a basal layer, an intermediate layer and a surface layer which are sequentially arranged from inside to outside; the basal layer is close to the coupling cavity and is abutted with the shell (3); the surface layer is in contact with the cover plate (7).

9. An integrated coupling structure according to claim 8, wherein:

one surface of the shell (3) close to the basal layer is plated with gold.