CN218975975U

CN218975975U - Radio frequency coaxial filter connector

Info

Publication number: CN218975975U
Application number: CN202223412473.1U
Authority: CN
Inventors: 翟乐乐; 张少波; 郑冬侠; 张宿
Original assignee: 40th Institute Of China Electronics Technology Corp
Current assignee: 40th Institute Of China Electronics Technology Corp
Priority date: 2022-12-17
Filing date: 2022-12-17
Publication date: 2023-05-05
Anticipated expiration: 2032-12-17

Abstract

The utility model provides a radio frequency coaxial filter connector; the device comprises a shell, a first insulating layer, a second insulating layer, a first jack piece, a second jack piece, a PCB, a filter and a grounding block; the middle part of the shell is provided with a filtering cavity, the left side and the right side of the shell are respectively provided with a first assembly pipe and a second assembly pipe, the first jack piece stretches into the filtering cavity, the first insulating layer fills the area between the first jack piece and the inner wall of the first assembly pipe, the second jack piece stretches into the filtering cavity, and the second insulating layer fills the area between the second jack piece and the inner wall of the second assembly pipe; the PCB, the filter and the grounding block are all positioned in the filtering cavity of the shell, the filter is arranged on the PCB, the first jack piece and the second jack piece are electrically connected with the filter through the PCB, the PCB is fixedly connected to the grounding block, and the grounding block is connected with the shell. The connector has the functions of transmitting radio frequency signals and filtering clutter signals, and can provide flexible design choice when designing a communication system, and reduce the size of an electronic circuit.

Description

Radio frequency coaxial filter connector

Technical Field

The present utility model relates to a radio frequency connector, and more particularly, to a radio frequency coaxial filter connector.

Background

When the test finds that clutter filtering is not ideal, the filter needs to be replaced or even the electronic circuit needs to be redesigned. This design technique results in electronic circuit structures that are large in size and difficult to test and adjust.

Basic research and application research on the power resistance of the radio frequency connector are less in China, and the special technology research on the power resistance problem is carried out later. On the one hand, the component development units are not willing to develop basic research in the aspect in advance under the condition of undefined requirements, and on the other hand, the component development units are not verified under test verification conditions, so that the difference from abroad is large.

The utility model patent with the application number of CN200820096614.4 discloses a high-power radio frequency connector capable of being locked and separated quickly, wherein a plug comprises a fixed ring, a top ring, a sheath, a retainer ring, a large spring, a small spring, a screw sleeve and a shell; the socket comprises an outer conductor and a sealing ring, wherein the sealing ring is pressed on the shell, the plug is connected into a whole by the threaded sleeve, the locking steel balls are uniformly distributed in holes in the circumference of the fixed ring, the outer side of the locking steel balls are in contact with the sheath, the inner side of the locking steel balls are in contact with an inclined plane A on the top ring, the large spring is arranged on the inner side of the sealing ring, the small spring is arranged on the outer side of the sealing ring, the precompression of the large spring is larger than that of the small spring, the sheath presses the locking steel balls in the holes of the fixed ring under the extrusion of the large spring and the small spring, the front end of the top ring extrudes the locking steel balls, the locking steel balls comprise an inclined plane A and an inclined plane B, and a groove is formed in the front end face of a butt joint interface of the socket. However, the above structure cannot solve the technical problem that the connector has the functions of transmitting the radio frequency signal and filtering the clutter signal.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a radio frequency coaxial filter connector, which realizes that the connector has the functions of transmitting radio frequency signals and filtering clutter signals.

In order to solve the technical problems, the utility model provides a radio frequency coaxial filter connector;

the device comprises a shell, a first insulating layer, a second insulating layer, a first jack piece, a second jack piece, a PCB, a filter and a grounding block;

the middle part of the shell is provided with a filtering cavity, the left side and the right side of the shell are respectively provided with a first assembling pipe and a second assembling pipe, inner holes of the first assembling pipe and the second assembling pipe are respectively communicated with the filtering cavity, a first jack piece penetrates through the first assembling pipe and stretches into the filtering cavity, a first insulating layer is filled in a region between the first jack piece and the inner wall of the first assembling pipe, a second jack piece penetrates through the second assembling pipe and stretches into the filtering cavity, and a second insulating layer is filled in a region between the second jack piece and the inner wall of the second assembling pipe;

the PCB, the filter and the grounding block are all positioned in the filtering cavity of the shell, the filter is arranged on the PCB, the first jack piece and the second jack piece are electrically connected with the filter through the PCB, the PCB is fixedly connected to the grounding block, and the grounding block is connected with the shell.

As the preference of this coaxial filter connector of radio frequency, the shell includes first casing and second casing, and open flutedly in the main part right side wall of first casing, first casing left extension has first dress piping, and open in the main part left side wall of second casing has the recess that coincides with first casing main part outline, and first casing stretches into in the recess of second casing, and first casing and second casing press-rivet cooperation to the filtering cavity of shell is constituteed to the recess of first casing and the recess of second casing.

Preferably, the grounding block is connected with the first shell and the second shell respectively.

As the preferential choice of the radio frequency coaxial filter connector, the outer wall of the first shell is provided with a gas release hole communicated with the filter cavity.

Preferably, the filter is an LTCC filter.

As the preferential selection of the radio frequency coaxial filter connector, the first insulating layer and the second insulating layer are made of polytetrafluoroethylene dielectric materials.

As the preference of the radio frequency coaxial filter connector, the side walls of the first jack piece and the second jack piece are provided with a plurality of through grooves which are uniformly distributed circumferentially, and the through grooves extend to the end face of the jack piece.

As a preferable mode of the rf coaxial filter connector, the first fitting pipe of the first housing and the second fitting pipe of the second housing are both SSMA-K type rf coaxial interface structure.

Preferably, the second housing main body has a flange portion extending from an outer wall thereof.

After the structure is adopted, the LTCC filter is built in a conventional radio frequency coaxial connector, and through structural fusion design and compensation size optimization design, the connector has the functions of transmitting radio frequency signals and filtering clutter signals, and is used for solving the technical problem of overall design of users.

The radio frequency coaxial filter connector has the functions of transmitting radio frequency signals and filtering clutter signals, is small in size and excellent in performance, can provide flexible design choices when a communication system is designed, reduces the size of an electronic circuit, and is convenient to test and optimize.

Drawings

Fig. 1 is a cross-sectional view of a schematic structural diagram of an embodiment of the present rf coaxial filter connector.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.

The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1.

The radio frequency coaxial filter connector comprises a shell, a first insulating layer 4, a second insulating layer 5, a first jack piece 2, a second jack piece 3, a PCB 7, a filter 8 and a grounding block 6.

The shell comprises a first shell 11 and a second shell 12, wherein the right side wall of the main body of the first shell 11 is provided with a groove, the first shell 11 extends leftwards to form a first assembling pipe 11a, the left side wall of the main body of the second shell 12 is provided with a groove matched with the outer contour of the main body of the first shell 11, the first shell 11 stretches into the groove of the second shell 12, the first shell 11 is in press-riveting fit with the second shell 12, the groove of the first shell 11 and the groove of the second shell 12 form a filtering cavity 13 of the shell, the inner hole of the first assembling pipe 11a is coaxial with the inner hole of the second assembling pipe 12a, and the inner holes of the first assembling pipe 11a and the second assembling pipe 12a are respectively communicated with the filtering cavity 13.

The first fitting pipe 11a of the first housing 11 and the first fitting pipe 11a of the second housing 12 each adopt an SSMA-K type radio frequency coaxial interface structure.

The first jack member 2 penetrates the first fitting pipe 11a and extends into the filter chamber 13, and the first insulating layer 4 fills the region between the first jack member 2 and the inner wall of the first fitting pipe 11 a.

The second jack member 3 penetrates the second fitting tube 12a and protrudes into the filter chamber 13, and the second insulating layer 5 fills the region between the second jack member 3 and the inner wall of the second fitting tube 12 a.

The grounding block 6 is respectively connected with the first shell 11 and the second shell 12, and the outer wall of the second shell 12 is provided with a flange part 12c which is used for being connected with external equipment, and the air release hole 12b can ensure that the pressure intensity of the filtering cavity is consistent with that of the outside because the radio frequency coaxial filtering connector can be used in the aerospace field.

The side walls of the first jack component 2 and the second jack component 3 are provided with four through grooves which are uniformly distributed circumferentially and extend to the end faces of the jack components.

The PCB 7, the filter 8 and the grounding block 6 are all positioned in the filtering cavity 13 of the shell, the filter 8 is arranged on the PCB 7, the first jack piece 2 and the second jack piece 3 are electrically connected with the filter 8 through the PCB 7, the PCB 7 is welded on the grounding block 6, the grounding block 6 is in contact with the shell and is connected, the filter 8 is an LTCC filter 8, and the first insulating layer 4 and the second insulating layer 5 are made of polytetrafluoroethylene dielectric materials.

The filter 8 is fixed on the PCB 7 through electrode soldering, the structure is mature and reliable, and a large number of engineering verification is carried out. The first jack component 2 and the second jack component 3 are symmetrically designed, the first insulating layer 4, the second insulating layer 5, the first jack component 2 and the second jack component 3 are designed by adopting universal components, and the types of parts are reduced.

The foregoing is merely one embodiment of the utility model, and it should be noted that variations and modifications could be made by those skilled in the art without departing from the principles of the utility model, which would also be considered to fall within the scope of the utility model.

Claims

1. A radio frequency coaxial filter connector, characterized by:

2. The rf coaxial filter connector of claim 1, wherein:

the shell comprises a first shell and a second shell, wherein a groove is formed in the right side wall of the main body of the first shell, a first assembling pipe is extended leftwards from the first shell, a groove matched with the outer contour of the main body of the first shell is formed in the left side wall of the main body of the second shell, the first shell stretches into the groove of the second shell, the first shell is in press-riveting fit with the second shell, and the groove of the first shell and the groove of the second shell form a filtering cavity of the shell.

3. The rf coaxial filter connector of claim 2, wherein:

the grounding block is connected with the first shell and the second shell respectively.

4. The rf coaxial filter connector of claim 2, wherein:

the outer wall of the first shell is provided with a gas release hole communicated with the filtering cavity.

5. The rf coaxial filter connector of claim 1, wherein:

the filter is an LTCC filter.

6. The rf coaxial filter connector of claim 1, wherein:

the first insulating layer and the second insulating layer are made of polytetrafluoroethylene dielectric materials.

7. The rf coaxial filter connector of claim 1, wherein:

the side walls of the first jack piece and the second jack piece are provided with a plurality of through grooves which are uniformly distributed circumferentially, and the through grooves extend to the end face of the jack piece.

8. The rf coaxial filter connector of claim 2, wherein:

the first assembling pipe of the first shell and the second assembling pipe of the second shell adopt SSMA-K type radio frequency coaxial interface structures.

9. The rf coaxial filter connector of claim 2, wherein:

the outer wall of the second shell body is extended with a flange part.