Coaxial adapter with filtering function

Abstract

The invention relates to the technical field of coaxial adapters, in particular to a coaxial adapter with a filtering function, which comprises a first shell, a second shell arranged on the side surface of the first shell, a second insulator arranged in the first shell, and a first inner conductor arranged in the second insulator, through cooperative use of the first shell, the second shell, the first inner conductor and the first insulator, the first shell, the second shell and the first inner conductor are made of beryllium bronze, and the first insulator is made of polytetrafluoroethylene, so that the cable has good electrical performance and certain strength, and can meet the requirements for electrical performance and working temperature; the adapter assembled by the invention can directly replace a filter, is small in size, light in weight, stable in electrical performance, free of welding and debugging, high in interchangeability and low in maintenance cost, can be simultaneously mounted in a multi-path plug-in manner, and is particularly convenient to mount and high in reliability for an integrated circuit due to multi-path plug-in among boards.

Description

Technical Field

[0001] This invention relates to the field of coaxial adapter technology, specifically a coaxial adapter with filtering function. Background Technology

[0002] Due to signal interference, the performance indicators of a key aerospace project did not meet expectations, and the overall performance of the system did not meet the design requirements. The coaxial adapter could not be replaced, and there were no coaxial adapters with filtering functions on the market. The only option was to use a special filter to filter out noise. For the spaceborne project, this not only increased the weight but also the size.

[0003] Spaceborne projects have extremely stringent requirements for weight and size. Current projects require miniaturization, integration, lightweight, superior electrical performance, and high reliability. For the electrical performance of coaxial devices, existing technologies require the addition of dedicated filters to filter out noise. This increases weight, size, and assembly complexity. With more components, electrical performance is significantly reduced. Furthermore, existing filters primarily use welding processes, which have many welding restrictions in spaceborne projects. Welding cycles are long, and the requirements for skilled workers are high. X-ray inspection of solder joints removes many defective products. Especially for small-sized devices with high frequency requirements, electrical performance debugging is very difficult, and reliability is also reduced. Summary of the Invention

[0004] The purpose of this invention is to provide a coaxial adapter with filtering function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A coaxial adapter with filtering function includes a first housing, a second housing disposed on the side of the first housing, a second insulator disposed inside the first housing, a first inner conductor disposed inside the second insulator, a first insulator disposed at the end of the first inner conductor, a second inner conductor inserted into the first housing, the first inner conductor and the second insulator being connected to the second inner conductor through the first insulator, a third inner conductor disposed at the end of the second inner conductor, a fifth insulator disposed on the outer surface of the third inner conductor, a fourth insulator disposed at the end of the fifth insulator, and the third insulator, the fourth insulator and the fifth insulator being connected to the second inner conductor through the third inner conductor.

[0006] As a preferred embodiment of the present invention, the third insulator, the fourth insulator, and the fifth insulator are located inside the second housing. The outer surface of the first housing is provided with external threads, and the inner surface wall of the second housing is provided with internal threads. The internal threads and external threads are adapted to each other. The end of the first housing extends into the second housing and is threadedly connected to the second housing.

[0007] As a preferred embodiment of the present invention, the first outer shell, the second outer shell, the first inner conductor, the second inner conductor, and the third inner conductor are all made of broken bronze, and the first inner conductor, the second inner conductor, and the third inner conductor are the same size.

[0008] As a preferred embodiment of the present invention, the first insulator, the second insulator, the third insulator, the fourth insulator, and the fifth insulator are all made of polytetrafluoroethylene, and the first insulator, the second insulator, the third insulator, the fourth insulator, and the fifth insulator are the same size.

[0009] As a preferred embodiment of the present invention, the inner walls of the first outer shell and the second outer shell are plated with gold, and the inner walls of the first inner conductor, the second inner conductor and the third inner conductor are plated with gold.

[0010] As a preferred embodiment of the present invention, a sealant is adhered at the connection between the first outer shell and the second outer shell, and both the first outer shell and the second outer shell are cylindrical in shape.

[0011] As a preferred embodiment of the present invention, the diameter of the first outer shell and the second outer shell is 5.5 mm, and the inner diameter of the first outer shell and the second outer shell is 4 mm.

[0012] As a preferred embodiment of the present invention, the inner surface walls of the first outer shell and the second outer shell are provided with steps, and the first outer shell and the second outer shell abut against the first insulator, the second insulator, the third insulator, the fourth insulator and the fifth insulator respectively through the steps.

[0013] As a preferred embodiment of the present invention, the first inner conductor, the second inner conductor, and the third inner conductor are all cylindrical in shape, and the first inner conductor, the second inner conductor, and the third inner conductor are arranged in sequence.

[0014] As a preferred embodiment of the present invention, the external and internal threads of the first and second outer shells are standard threads of M5X0.5.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the first outer shell, second outer shell, first inner conductor, and first insulator are used in combination. The first outer shell, second outer shell, and first inner conductor are all made of the same material, beryllium bronze, which has good conductivity, strength, hardness, elastic limit, and fatigue limit. The first insulator is made of polytetrafluoroethylene, which has good electrical performance and certain strength, and can meet the requirements for electrical performance and operating temperature. The adapter assembled by this invention can directly replace the filter. It is small in size, light in weight, and can be installed with multiple channels simultaneously. The electrical performance is very stable. No soldering or debugging is required. It has strong interchangeability and low maintenance cost. In particular, the multi-channel inter-board plug-in is very convenient for integrated circuit installation and has high reliability.

[0016] 2. In this invention, the first inner conductor, the second inner conductor, and the third inner conductor are limited by steps to the first insulator, the second insulator, the third insulator, the fourth insulator, and the fifth insulator. The first outer shell and the second outer shell are limited by steps on the inner side of the outer shell. The inner conductor and the outer shell cavity are radially limited by the insulator surrounding them. Thus, the inner conductor, the insulator, and the outer shell are limited in both the axial and radial directions, making the product structure reliable. Attached Figure Description

[0017] Figure 1 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the first outer shell external thread structure of the present invention; Figure 4 This is a schematic diagram of the internal thread structure of the second outer shell of the present invention; Figure 5 This is a schematic diagram of the inner conductor structure of the present invention.

[0018] In the diagram: 1. First inner conductor; 2. Second inner conductor; 3. Third inner conductor; 4. First insulator; 5. Second insulator; 6. Third insulator; 7. Fourth insulator; 8. Fifth insulator; 9. First outer shell; 10. Second outer shell. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] For examples, please refer to Figures 1-5 The present invention provides a technical solution: A coaxial adapter with filtering function includes a first housing 9, a second housing 10 disposed on the side of the first housing 9, a second insulator 5 disposed inside the first housing 9, a first inner conductor 1 disposed inside the second insulator 5, a first insulator 4 disposed at the end of the first inner conductor 1, a second inner conductor 2 inserted into the first housing 9, the first inner conductor 1 and the second insulator 5 being connected to the second inner conductor 2 through the first insulator 4, a third inner conductor 3 disposed at the end of the second inner conductor 2, a fifth insulator 8 disposed on the outer surface of the third inner conductor 3, a fourth insulator 7 disposed at the end of the fifth insulator 8, a third insulator 6, a fourth insulator 7, and a fifth insulator 8 being connected to the second inner conductor 2 through the third inner conductor 3, the third insulator 6, the fourth insulator 7, and the fifth insulator 8 being located inside the second housing 10, the outer surface of the first housing 9 having an external thread, the inner wall of the second housing 10 having an internal thread, the internal thread and the external thread being compatible, and the end of the first housing 9 extending into the second housing 10 and threadedly connected to the second housing 10.

[0021] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the first outer shell 9, the second outer shell 10, the first inner conductor 1, the second inner conductor 2, and the third inner conductor 3 are all made of broken bronze. The first inner conductor 1, the second inner conductor 2, and the third inner conductor 3 are the same size. The first insulator 4, the second insulator 5, the third insulator 6, the fourth insulator 7, and the fifth insulator 8 are all made of polytetrafluoroethylene (PTFE). The first insulator 4, the second insulator 5, the third insulator 6, the fourth insulator 7, and the fifth insulator 8 are the same size. The inner surfaces of the first outer shell 9 and the second outer shell 10 are plated with gold. The inner surfaces of the first inner conductor 1, the second inner conductor 2, and the third inner conductor 3 are plated with gold. The connection between the first outer shell 9 and the second outer shell 10 is sealed with sealant. The first outer shell 9 and the second outer shell 10 are both cylindrical in shape, with a diameter of 5.5 mm and an inner diameter of 4 mm. The inner walls of the first outer shell 9 and the second outer shell 10 are provided with steps, which abut against the first insulator 4, the second insulator 5, the third insulator 6, the fourth insulator 7, and the fifth insulator 8, respectively. The first inner conductor 1, the second inner conductor 2, and the third inner conductor 3 are all cylindrical in shape and are arranged sequentially. The external and internal threads of the first outer shell 9 and the second outer shell 10 are standard M5X0.5 threads.

[0022] The workflow of this invention is as follows: When using the coaxial adapter with filtering function designed in this scheme, first check whether the components are working properly. Cut the insulators of the third insulator 6 and the fifth insulator 8 at 3 / 4 of their radial length. Install the second inner conductor 2 and the third inner conductor 3 into the first inner conductor 1 and the second inner conductor 2 for later use. Then install the first inner conductor 1 into the second insulator 5 and the first insulator 4 into the end of the first inner conductor 1. Then push the whole assembly into the first outer shell 9 and the second outer shell 10 using a tool. Then install the first inner conductor 1 into the first outer shell 9 and the second outer shell 10 respectively. Then install the fourth insulator 7 into the first outer shell 9 and the second outer shell 10. Then install the second inner conductor 2 into the second outer shell 10. Finally, apply glue to the first outer shell 9 and the second outer shell 10 and tighten them with a wrench. The assembly is now complete.

[0023] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coaxial adapter with filtering function, comprising a first housing (9), characterized in that: A second outer shell (10) is provided on the side of the first outer shell (9). A second insulator (5) is provided inside the first outer shell (9). A first inner conductor (1) is provided inside the second insulator (5). A first insulator (4) is provided at the end of the first inner conductor (1). A second inner conductor (2) is inserted into the first outer shell (9). The first inner conductor (1) and the second insulator (5) are connected to the second inner conductor (2) through the first insulator (4). A third inner conductor (3) is provided at the end of the second inner conductor (2). A fifth insulator (8) is provided on the outer surface of the third inner conductor (3). A fourth insulator (7) is provided at the end of the fifth insulator (8). The third insulator (6), the third insulator (6), the fourth insulator (7), and the fifth insulator (8) are connected to the second inner conductor (2) through the third inner conductor (3).

2. The coaxial adapter with filtering function according to claim 1, characterized in that, The third insulator (6), the fourth insulator (7), and the fifth insulator (8) are located inside the second housing (10). The outer surface of the first housing (9) is provided with an external thread, and the inner surface wall of the second housing (10) is provided with an internal thread. The internal thread and the external thread are adapted to each other. The end of the first housing (9) extends into the second housing (10) and is threadedly connected to the second housing (10).

3. A coaxial adapter with filtering function according to claim 1, characterized in that, The first outer shell (9), the second outer shell (10), the first inner conductor (1), the second inner conductor (2) and the third inner conductor (3) are all made of broken bronze. The first inner conductor (1), the second inner conductor (2) and the third inner conductor (3) are the same size.

4. A coaxial adapter with filtering function according to claim 1, characterized in that, The first insulator (4), the second insulator (5), the third insulator (6), the fourth insulator (7), and the fifth insulator (8) are all made of polytetrafluoroethylene, and the first insulator (4), the second insulator (5), the third insulator (6), the fourth insulator (7), and the fifth insulator (8) are the same size.

5. A coaxial adapter with filtering function according to claim 1, characterized in that, The inner walls of the first outer shell (9) and the second outer shell (10) are plated with gold, and the inner walls of the first inner conductor (1), the second inner conductor (2) and the third inner conductor (3) are plated with gold.

6. A coaxial adapter with filtering function according to claim 1, characterized in that, The connection between the first outer shell (9) and the second outer shell (10) is sealed with sealant. Both the first outer shell (9) and the second outer shell (10) are cylindrical in shape.

7. A coaxial adapter with filtering function according to claim 1, characterized in that, The diameter of the first shell (9) and the second shell (10) is 5.5 mm, and the inner diameter of the first shell (9) and the second shell (10) is 4 mm.

8. A coaxial adapter with filtering function according to claim 1, characterized in that, The inner surface of the first shell (9) and the second shell (10) is provided with steps, and the first shell (9) and the second shell (10) abut against the first insulator (4), the second insulator (5), the third insulator (6), the fourth insulator (7) and the fifth insulator (8) respectively through the steps.

9. A coaxial adapter with filtering function according to claim 1, characterized in that, The first inner conductor (1), the second inner conductor (2) and the third inner conductor (3) are all cylindrical in shape, and the first inner conductor (1), the second inner conductor (2) and the third inner conductor (3) are arranged in sequence.

10. A coaxial adapter with filtering function according to claim 1, characterized in that, The external and internal threads of the first housing (9) and the second housing (10) are standard threads of M5X0.5.

Images