High-voltage-resistant radio frequency coaxial connector

Abstract

The utility model discloses a high voltage resistant radio frequency coaxial connector. The insulator comprises an inner conductor, an inner shell, an outer shell, an inner insulator between the inner conductor and the inner shell, and an outer insulator between the inner shell and the outer shell. The inner conductor is pressed in the inner insulator to form an inner conductor assembly, the inner conductor assembly is embedded in an inner cavity of the inner shell to form an inner shell assembly, the inner shell assembly is pressed in the outer insulator to form an insulator assembly, and the insulator assembly is embedded in an inner cavity of the outer shell. The electric connector has the advantages that the inner and outer conductive parts improve the withstand voltage value of the connector while ensuring the electrical performance through the inner insulator arranged between the inner conductor and the inner shell and the outer insulator arranged between the inner shell and the outer shell, can stably work in an extreme voltage environment, and ensures the safety and reliability of a circuit.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coaxial connector, especially a high-voltage resistant radio frequency coaxial connector. BACKGROUND

[0002] A connector is an electronic component widely used in the connection between a circuit board and a cable, and is an indispensable part of modern electronic equipment. The voltage resistance of a connector refers to the maximum voltage that can be withstood during the design and manufacturing process, usually referring to the highest voltage that can be withstood between two reliably isolated conductors. This performance is mainly divided into two parameters: short-time voltage resistance (the maximum instantaneous voltage that an electrical appliance can withstand) and arc breakdown voltage resistance (the ability of an electrical appliance to prevent gas discharge perforation phenomenon).

[0003] Voltage resistance is an important indicator of the safety and reliability of a connector. In actual application, a connector may face various extreme environments and abnormal conditions, such as overvoltage or overcurrent, and therefore needs to have sufficient voltage resistance to protect the circuit from damage. As one of the key parameters of a connector, voltage resistance is directly related to its function and safety, so the evaluation of connector voltage resistance and the formulation of related standards are particularly important.

[0004] The existing radio frequency coaxial connector generally has only one shell, one insulator and one inner conductor, which limits the voltage resistance value of the connector and cannot achieve higher voltage resistance. With the continuous development of the communication industry, the requirements for communication systems are becoming higher and higher, and higher requirements are also put forward for the radio frequency coaxial connectors installed on the antenna system. SUMMARY

[0005] The utility model wants to solve the technical problem of providing a high-voltage resistant radio frequency coaxial connector with higher voltage resistance, more stable structure and better safety performance.

[0006] In order to solve the above technical problems, the high-voltage resistant radio frequency coaxial connector of the utility model comprises an inner conductor, an inner shell, a shell, an inner insulator for isolating between the inner conductor and the inner shell, and an outer insulator for isolating between the inner shell and the outer shell; the inner conductor is press-fitted in the inner insulator to form an inner conductor assembly, the inner conductor assembly is embedded in the inner cavity of the inner shell to form an inner shell assembly, the inner shell assembly is press-fitted in the outer insulator to form an insulator assembly, and the insulator assembly is embedded in the inner cavity of the shell.

[0007] The inner cavity of the inner shell has an inner shell stepped groove, and the contact surface of the inner insulator and the inner shell stepped groove are matched.

[0008] The inner cavity of the shell has an outer shell stepped groove, and the contact surface of the outer insulator and the outer shell stepped groove are matched.

[0009] The outer surface of the inner shell is arranged as a stepped surface, and the inner surface of the outer insulator matches the stepped surface.

[0010] The stepped surface and the shell stepped groove limit the outer insulator.

[0011] The outer surface of the inner shell and the inner surface of the outer shell are both provided with barb structures.

[0012] The barb structure is a ring-shaped cone.

[0013] The advantages of the utility model are:

[0014] (1) The inner and outer conductive parts are provided with the inner insulator between the inner conductor and the inner shell and the outer insulator between the inner shell and the outer shell, so that the voltage resistance value of the joint is improved while the electrical performance is ensured, the joint can work stably in an extreme voltage environment, and the safety and reliability of the circuit are ensured.

[0015] (2) The stepped matching design between the inner insulator and the inner shell, the inner shell and the outer insulator, and the outer insulator and the outer shell enhances the limiting function between the parts and improves the convenience of installation.

[0016] (3) The barb structure design of the inner shell and the outer shell further realizes the precise matching between the components, avoids the situation of loose assembly, and improves the structural stability of the connector.

[0017] (4) Each component is designed as an independent module and connected through press fitting, nesting and other assembly methods, which simplifies the processing technology and is convenient for maintenance and replacement. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the high-voltage resistant radio frequency coaxial connector of the utility model;

[0019] Figure 2 It is an assembly process diagram of the inner conductor and the inner insulator in the high-voltage resistant radio frequency coaxial connector of the utility model;

[0020] Figure 3 It is an assembly process diagram of the inner conductor, the inner insulator and the inner shell in the high-voltage resistant radio frequency coaxial connector of the utility model;

[0021] Figure 4 It is an assembly process diagram of the inner conductor, the inner insulator, the inner shell and the outer insulator in the high-voltage resistant radio frequency coaxial connector of the utility model. DETAILED DESCRIPTION

[0022] The high-voltage resistant radio frequency coaxial connector of the utility model will be further described in detail in combination with the drawings and specific embodiments.

[0023] For example, Figure 1As shown, the high-voltage RF coaxial connector of this utility model includes an inner conductor 1, an inner shell 3, and an outer shell 5, an inner insulator 2 between the inner conductor 1 and the inner shell 3, and an outer insulator 4 between the inner shell 3 and the outer shell 5. Both the inner shell 3 and the outer shell 5 are made of conductive metal. Both the inner insulator 2 and the outer insulator 4 are annular structures with inner holes, and both the inner shell 3 and the outer shell 5 are cylindrical structures with inner cavities. The inner conductor 1 is press-fitted into the inner hole of the inner insulator 2 to form an inner conductor assembly. The outer surface of the inner insulator 2 and the inner cavity of the inner shell 3 are mutually matched in a stepped shape. The inner conductor assembly is embedded in the inner cavity of the inner shell 3 to form an inner shell assembly. The inner shell assembly is press-fitted into the outer insulator 4 to form an insulator assembly. The insulator assembly is embedded in the outer shell 5.

[0024] The inner shell 3 has an inner shell stepped groove in its inner cavity, and the contact surface between the inner insulator 2 and the inner shell 3 matches the inner shell stepped groove. The outer shell 5 has an outer shell stepped groove in its inner cavity, and the inner surface of the outer insulator 4 matches the outer shell stepped groove. The outer surface of the inner shell 3 has a stepped surface, and the contact surface between the outer insulator 4 and the inner shell 3 matches the stepped surface. The stepped surface and the outer shell stepped groove limit the movement of the outer insulator 4. Both the outer surface of the inner shell 3 and the inner surface of the outer shell 5 have barbed structures 6, and the inner and outer surfaces of the outer insulator 4 have structures that match the shape of the barbed structures 6.

[0025] The assembly steps of the high-voltage resistant radio frequency coaxial connector of this utility model are as follows:

[0026] ① First, press the inner conductor 1 into the inner insulator 2, such as... Figure 2 As shown;

[0027] ② Next, press the pressed inner conductor assembly, inner conductor 1 and inner insulator 2, into the inner shell 3, as follows: Figure 3 As shown;

[0028] ③Then, press the assembled inner shell 3 into the outer insulator 4, as shown. Figure 4 As shown;

[0029] ④ Finally, press the pressed outer insulator 4 assembly into the outer casing 5, as shown. Figure 1 The present invention relates to a high-voltage RF coaxial connector.

[0030] Verification has shown that this structure, consisting of an inner shell, an outer shell, and two insulators, increases the withstand voltage to three times that of the original structure, significantly improving the connector's performance and providing a safety guarantee for the entire communication system.

Claims

1. A high voltage RF coaxial connector, characterized by: The inner conductor (1), the inner shell (3), the outer shell (5), the inner insulator (2) for isolating between the inner conductor (1) and the inner shell (3), and the outer insulator (4) for isolating between the inner shell (3) and the outer shell (5) are included; the inner conductor (1) is press-fitted in the inner insulator (2) to form an inner conductor assembly, the inner conductor assembly is embedded in the inner shell (3) to form an inner shell assembly, the inner shell assembly is press-fitted in the outer insulator (4) to form an insulator assembly, and the insulator assembly is embedded in the outer shell (5).

2. The high pressure RF coaxial connector of claim 1, wherein: The inner cavity of the inner shell (3) has an inner shell step groove, and the contact surface of the inner insulator (2) and the inner shell (3) matches the inner shell step groove.

3. The high pressure RF coaxial connector of claim 2, wherein: The inner cavity of the outer shell (5) has an outer shell step groove, and the contact surface of the outer insulator (4) and the outer shell (5) matches the outer shell step groove.

4. The high pressure RF coaxial connector of claim 3, wherein: The outer surface of the inner shell (3) is provided as a stepped surface, and the inner surface of the outer insulator (4) matches the stepped surface.

5. The high pressure RF coaxial connector of claim 4, wherein: The stepped surface and the outer shell step groove limit the outer insulator (4).

6. The high pressure RF coaxial connector of claim 1, wherein: The outer surface of the inner shell (3) and the inner surface of the outer shell (5) are both provided with barb structures (6).

7. The high pressure RF coaxial connector of claim 6, wherein: The barb structure (6) is annular and conical.

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