Airtight connector of TNC type nut fixing structure

Abstract

The utility model provides an airtight connector of a TNC type nut fixing structure, which relates to the field of microwave radio frequency passive devices, and comprises an insulation assembly, a conductor assembly and a sealing assembly are fixedly connected in the insulation assembly, the insulation assembly comprises a front outer conductor, one end of the front outer conductor is fixedly connected with a rear outer conductor, and the other end of the front outer conductor is fixedly connected with a rear outer conductor. The inner part of the rear outer conductor is fixedly connected with a first outer conductor, the sealing assembly comprises a first insulator, and the outer side of the first insulator is fixedly connected with the inner part of the front outer conductor, so that the connector can maintain stable performance in an extreme environment through the firm connection of the outer conductors and the central conductor and the sealing design of the insulators. And meanwhile, the pressure spring is used for uniformly applying pressure to the threaded ring, so that the threaded ring can form more stable connection during fastening, the risk of longitudinal deviation between the central conductor and the insulator is effectively reduced, and the stability, the electrical insulation performance and the connection stability of the connector are improved.

Description

Technical Field

[0001] The utility model relates to the field of microwave radio frequency passive components, in particular to an airtight connector with a TNC type nut fixing structure. Background Art

[0002] RF coaxial adapters are usually considered to be a component installed on cables or instruments, as a component for electrical connection or separation of transmission lines. With the development of the networking era, the requirements for signal input and output devices are increasing, one of which is the adaptability to various environments. For example, ordinary structural connectors can no longer meet the use requirements in vacuum, low temperature, high pressure, high mechanical stress and high temperature stress.

[0003] Among them, the TNC series products are a widely used coaxial connector with threaded connection. It has the characteristics of wide frequency band, excellent performance, high reliability and long life. It is suitable for connecting RF cables or microstrip lines in the RF circuit of microwave equipment and digital communication systems.

[0004] However, in actual use, there are still the following deficiencies, such as: the connectors made of traditional fluoroplastic or silicone materials can no longer meet the performance requirements in these extreme environments. However, when experiencing severe temperature shocks, or used in extreme temperature environments such as high or low temperatures, there may be a risk of longitudinal displacement between the center conductor and the insulator, resulting in the leakage performance of the connector failing to meet the specified standards, thereby affecting the stability and reliability of the entire system.

[0005] Therefore, the utility model provides a gas-tight connector with a TNC type nut fixing structure. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings in the prior art and provide an airtight connector with a TNC type nut fixing structure.

[0007] In order to achieve the above-mentioned object, the utility model adopts the following technical scheme: a gas-tight connector with a TNC type nut fixing structure, comprising an insulating component, a conductor component is fixedly connected inside the insulating component, a sealing component is fixedly connected inside the insulating component, and a mounting component is arranged outside the insulating component;

[0008] The insulating assembly comprises a front outer conductor, one end of the front outer conductor is fixedly connected to a rear outer conductor, and the interior of the rear outer conductor is fixedly connected to an outer conductor 1;

[0009] The sealing assembly includes an insulator 1, the outer side of the insulator 1 is fixedly connected to the inside of the front outer conductor, the inner wall of the insulator 1 is fixedly connected with glass beads, and the inside of the outer conductor 1 is fixedly connected with an insulator 2.

[0010] As a preferred embodiment, the conductor assembly includes a center conductor 1, the outer side of the center conductor 1 is installed inside the outer conductor 1, and the end of the center conductor 1 close to the front outer conductor is fixedly connected to the center conductor 2.

[0011] The technical effect of adopting the above technical solution is: whether in an extremely dry vacuum environment, under extremely low temperature conditions, or facing the challenge of high pressure, it can maintain its sealing effect and ensure that the environment is airtight and not affected by the outside world.

[0012] As a preferred implementation, the outer side of the glass bead is fixedly connected to the front outer conductor.

[0013] The technical effect of adopting the above technical solution is: the connection strength between components is strengthened, and the good sealing can effectively ensure the leakage requirements of the product.

[0014] As a preferred implementation, the inside of the second center conductor is fixedly connected to the outside of the first center conductor.

[0015] The technical effect of adopting the above technical solution is to avoid the risk of component 3 and component 4 being separated due to the meshing force when being plugged into the socket.

[0016] As a preferred embodiment, the glass beads are glass sintered structures, which are made by infiltration of glass liquid and metal oxide layer.

[0017] The technical effect of adopting the above technical solution is that such a structural design has a much greater bonding force than fluoroplastics and adhesives, and can effectively prevent thermal expansion and contraction of the insulator caused by the product during the temperature shock process.

[0018] As a preferred embodiment, the mounting assembly includes a fixing part, the inner wall of the fixing part is fixedly connected to the outer side of the rear outer conductor, the inner wall of the fixing part is slidably connected to a telescopic column, the outer side of the telescopic column is slidably connected to a threaded ring, and pressure springs are arranged inside the fixing part and the threaded ring.

[0019] The technical effect of adopting the above technical solution is: providing a preload force to ensure that the connection is tight and prevent loosening. This design is usually used to offset the effects that may be caused by vibration or loosening in the connection.

[0020] As a preferred implementation, one end of one of the pressure springs is fixedly connected to the inner wall of the fixing member, and one end of the other pressure spring is slidably connected to the inner wall of the telescopic column.

[0021] The technical effect of adopting the above technical solution is: ensuring the tightness and stability of the connection while maintaining appropriate contact force and pressure.

[0022] As a preferred implementation, adjacent ends of the two pressure springs are fixedly connected to the telescopic column.

[0023] The technical effect of adopting the above technical solution is that the pressure of the spring can be transmitted to the telescopic column.

[0024] Compared with the prior art, the advantages and positive effects of the utility model are:

[0025] The utility model sets a sealing component and an installation component structure, firstly fixes and connects the front outer conductor and the rear outer conductor to form an external frame, then installs the center conductor one in the outer conductor one, and fixes the center conductor two at one end thereof, next, fixes the insulator one on the front outer conductor, and fixes glass beads on the inner wall thereof to achieve sealed insulation, and then fixes the insulator two in the outer conductor one to enhance the electrical insulation performance, and secondly, when the thread ring is adjusted, the pressure is transmitted to the pressure spring through the threaded connection, and the reaction force of the pressure spring causes the thread ring to be subjected to uniform pressure, thereby ensuring the precise connection of the thread ring, and this design enables the connector to maintain stable performance in extreme environments through the firm connection between the outer conductor and the center conductor, and the sealing design of the insulator, and at the same time utilizes the pressure spring to uniformly press the thread ring, so that the thread ring can form a more stable connection when tightened, effectively reducing the risk of longitudinal displacement between the center conductor and the insulator, and improving the stability, electrical insulation performance and connection stability of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional diagram of a gas-tight connector with a TNC type nut fixing structure provided by the utility model;

[0027] Figure 2 A disassembled diagram of the conductor assembly structure of a gas-tight connector with a TNC type nut fixing structure provided by the utility model;

[0028] Figure 3 A schematic diagram of the sealing assembly structure of a gas-tight connector with a TNC-type nut fixing structure provided by the utility model;

[0029] Figure 4 A schematic structural diagram of an airtight connector mounting assembly with a TNC-type nut fixing structure provided by the utility model.

[0030] Legend:

[0031] 1. Insulation assembly; 11. Front outer conductor; 12. Rear outer conductor; 13. Outer conductor 1;

[0032] 2. Conductor assembly; 21. Center conductor one; 22. Center conductor two;

[0033] 3. Sealing assembly; 31. Insulator 1; 32. Glass beads; 33. Insulator 2;

[0034] 4. Installation assembly; 41. Fixing piece; 42. Telescopic column; 43. Threaded ring; 44. Pressure spring. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] like Figure 1 - Figure 3 As shown, this embodiment provides a technical solution: a gas-tight connector with a TNC type nut fixing structure, comprising an insulating component 1, a conductor component 2 is fixedly connected to the inside of the insulating component 1, a sealing component 3 is fixedly connected to the inside of the insulating component 1, and a mounting component 4 is arranged on the outside of the insulating component 1;

[0037] The insulating assembly 1 comprises a front outer conductor 11, one end of the front outer conductor 11 is fixedly connected to a rear outer conductor 12, and the interior of the rear outer conductor 12 is fixedly connected to an outer conductor 13;

[0038] The conductor assembly 2 includes a center conductor 1 21, the outer side of the center conductor 1 21 is installed inside the outer conductor 1 13, the end of the center conductor 1 21 close to the front outer conductor 11 is fixedly connected to the center conductor 2 22, and the inner side of the center conductor 22 is fixedly connected to the outer side of the center conductor 1 21;

[0039] The sealing component 3 includes an insulator 1 31, the outer side of the insulator 1 31 is fixedly connected to the inside of the front outer conductor 11, the inner wall of the insulator 1 31 is fixedly connected to a glass bead 32, the outer side of the glass bead 32 is fixedly connected to the front outer conductor 11, the glass bead 32 is a glass sintered structure, and is made by infiltration of glass liquid and metal oxide layer, the inner side of the outer conductor 13 is fixedly connected to an insulator 2 33, the front outer conductor 11 and the rear outer conductor 12, this design provides a solid external frame, effectively protecting the internal components from external physical damage and environmental factors, the center conductor 121 and the outer conductor 11 are fixedly connected to each other. The design of 3 ensures the stable positioning of the conductor component 2 inside the entire connector. The connection between the center conductor 1 21 and the center conductor 2 22 ensures the smooth transmission of the electrical signal. The insulator 1 31 and the insulator 2 33 provide a primary sealing effect to prevent the external environment from affecting the internal electrical components. The glass bead 32 is a glass-sintered structure made by infiltration of glass liquid and metal oxide layer. The bonding force of this structure is much greater than that of fluoroplastics and adhesives, which can effectively prevent the thermal expansion and contraction of the insulator caused by the product during the temperature shock process, or the core pulling of the connector conductor caused by the greater mechanical strength. It can also meet the leakage requirement of 1.01325*10-3Pa.cm3 / s, and the glass bead 32 and the front outer conductor 11 and the center conductor 1 21 and the center conductor 2 22 are all soldered at high temperature, which strengthens the connection strength between the components. The good sealing can effectively ensure the leakage requirements of the product.

[0040] In order to solve the problem that traditional threaded connections are easily loosened by external factors, such as Figure 1 and Figure 4As shown: In the present scheme, the mounting assembly 4 includes a fixing member 41, the inner wall of which is fixedly connected to the outer side of the rear outer conductor 12, the inner wall of the fixing member 41 is slidably connected to a telescopic column 42, the outer side of the telescopic column 42 is slidably connected to a threaded ring 43, and pressure springs 44 are arranged inside the fixing member 41 and the threaded ring 43, one end of one pressure spring 44 is fixedly connected to the inner wall of the fixing member 41, and one end of the other pressure spring 44 is slidably connected to the inner wall of the telescopic column 42, and the adjacent ends of the two pressure springs 44 are fixedly connected to the telescopic column 42, and the inner wall of the fixing member 41 is fixedly connected to the outer side of the rear outer conductor 12, providing a stable base to ensure that the entire assembly remains stable during operation, and the telescopic column 42 has a certain range of free movement in the fixing member 41 and the threaded ring 43 to adapt to different installation requirements and environmental changes. The outer side of the telescopic column 42 is slidably connected with a threaded ring 43. By adjusting the threaded ring 43, the telescopic column 42 device can be accurately positioned and locked, ensuring the stability and reliability of the component during installation. The adjacent ends of the two pressure springs 44 are fixedly connected to the telescopic column 42. Such double fixation ensures a uniform distribution of spring force. When the threaded connection is made, the pressure is transmitted to the pressure spring 44 in the threaded ring 43. In this way, under the pressure of the pressure spring 44, pressure can be applied to the threaded ring 43, making the threaded connection more stable and reducing the risk of loosening.

[0041] Working principle:

[0042] like Figure 1 - Figure 4 As shown:

[0043] When in use: first, the front outer conductor 11 is fixedly connected to the rear outer conductor 12 to form a solid external frame. Next, the center conductor 1 21 is installed inside the outer conductor 1 13, and the center conductor 2 22 is fixedly connected to one end of the center conductor 1 21 to ensure the stability of the conductive performance. Subsequently, the insulator 1 31 is fixedly connected to the front outer conductor 11, and the glass beads 32 are fixed to the inner wall of the insulator 1 31 to achieve sealing and insulation effects. Finally, the insulator 2 33 is fixed inside the outer conductor 13 to further enhance the electrical insulation performance of the entire connector. In the actual installation process, when the thread ring 43 is adjusted, the pressure will be transmitted to the pressure spring 44 in the thread ring 43 through the threaded connection, so that when the pressure spring 44 acts on the thread ring 43, the pressure spring 44 can generate a reaction force to apply uniform pressure to the thread ring 43. This is because the telescopic column 42 can form a movable range of motion between the fixing part 41 and the thread ring 43, so that the pressure spring 44 can act on the threaded connection of the thread ring 43 more firmly and reduce the risk of loosening.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A gas-tight connector with a TNC type nut fixing structure, comprising an insulating component (1), characterized in that: A conductor component (2) is fixedly connected inside the insulating component (1), a sealing component (3) is fixedly connected inside the insulating component (1), and a mounting component (4) is arranged outside the insulating component (1); The insulating component (1) comprises a front outer conductor (11), one end of the front outer conductor (11) is fixedly connected to a rear outer conductor (12), and the interior of the rear outer conductor (12) is fixedly connected to an outer conductor 1 (13); The sealing assembly (3) comprises an insulator 1 (31), the outer side of the insulator 1 (31) is fixedly connected to the inside of the front outer conductor (11), the inner wall of the insulator 1 (31) is fixedly connected to glass beads (32), and the inside of the outer conductor 1 (13) is fixedly connected to an insulator 2 (33).

2. The airtight connector with a TNC type nut fixing structure according to claim 1, characterized in that: The conductor assembly (2) comprises a central conductor one (21), the outer side of the central conductor one (21) being mounted inside the outer conductor one (13), and the end of the central conductor one (21) close to the front outer conductor (11) being fixedly connected to a central conductor two (22).

3. The airtight connector with a TNC type nut fixing structure according to claim 1, characterized in that: The outer side of the glass bead (32) is fixedly connected to the front outer conductor (11).

4. The airtight connector with a TNC type nut fixing structure according to claim 2, characterized in that: The interior of the second central conductor (22) is fixedly connected to the exterior of the first central conductor (21).

5. The airtight connector with a TNC type nut fixing structure according to claim 1, characterized in that: The glass beads (32) are glass-sintered structures, and are made by infiltrating glass liquid with a metal oxide layer.

6. The airtight connector with a TNC type nut fixing structure according to claim 1, characterized in that: The mounting assembly (4) comprises a fixing member (41), the inner wall of the fixing member (41) being fixedly connected to the outer side of the rear outer conductor (12), the inner wall of the fixing member (41) being slidably connected to a telescopic column (42), the outer side of the telescopic column (42) being slidably connected to a threaded ring (43), and pressure springs (44) are arranged inside the fixing member (41) and the threaded ring (43).

7. The airtight connector with a TNC type nut fixing structure according to claim 6, characterized in that: One end of one of the pressure springs (44) is fixedly connected to the inner wall of the fixing member (41), and one end of the other pressure spring (44) is slidably connected to the inner wall of the telescopic column (42).

8. The airtight connector with a TNC type nut fixing structure according to claim 6, characterized in that: The adjacent ends of the two pressure springs (44) are fixedly connected to the telescopic column (42).

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