A high-reliability sealed radio frequency connector and assembly method thereof

Abstract

The present invention provides a high-reliability sealed radio frequency connector and an assembly method thereof, wherein the radio frequency connector comprises a shell, a rear insulator, a potting compound, a front insulator, a positioning ring, a transfer jack, a pin, an insulating pad, and a welding ring. The present invention also provides an assembly method for the high-reliability sealed radio frequency connector. The radio frequency connector structure of the present invention does not need to be sintered to meet the requirements of airtightness. In addition, the jack and the wire are transferred with a pin, the assembly process is simple, and the jack does not need to be made very long, which is easy to achieve in terms of machining process. The connector can be used in conjunction with a radio frequency connector with the same interface to realize the transmission function of high-frequency signals, can meet the requirements of use in environments such as high impact and strong vibration, and can also meet the requirements of airtightness.

Description

Technical Field

[0001] The present invention belongs to the technical field of radio frequency connectors, and in particular provides a high-reliability sealed radio frequency connector and an assembly method thereof, which are applied to the fields of communication equipment, aviation, aerospace, outdoor wireless transmission systems, etc. Background Art

[0002] In order to be able to use a highly reliable RF interconnection system on through-wall devices in field communication systems, it is necessary to provide an RF connector with a sealing function.

[0003] The RF connectors commonly used nowadays cannot achieve traditional airtight processes such as sintering, inlaying and plastic pressing because the elastic jacks of the elastic connectors will lose their elasticity after being heated to high temperatures. In addition, the pin-mounted connectors cannot be directly connected to the wires, so the pin-mounted connectors (adapters) after sintering must be used in combination with two plugs, which takes up a large space and is relatively expensive. Summary of the invention

[0004] In order to solve the above technical problems, an object of the present invention is to provide a highly reliable sealed RF connector and an assembly method thereof which can meet the airtight requirements, have a simple assembly process and can achieve high-frequency transmission.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a highly reliable sealed radio frequency connector, which includes a shell, a rear insulator, a potting compound, a front insulator, a positioning ring, a transfer jack, a pin, an insulating pad, and a welding ring; the rear insulator is installed in the shell by interference fit, and the transfer jack is axially installed in the hole cavity of the rear insulator, the front insulator is sleeved on the outer periphery of the front end of the transfer jack, and the potting compound is used to pot between the outer periphery of the transfer jack between the front insulator and the rear insulator and the shell, and a positioning ring is sleeved on the front insulator, and the positioning ring is installed with an interference fit with the shell to limit the front insulator. When the transfer jack is connected to the wire, the wire shielding layer is welded to the welding ring, and the wire core is welded to the pin after being sleeved with the insulating pad, and the welded pin is sent into the transfer jack to realize the termination of the wire and the connector.

[0006] Furthermore, the insulating pad contacts the end surface of the adapter jack and is placed inside the rear insulator.

[0007] Furthermore, the front end surface of the welding ring contacts the rear end surface of the rear insulator and is placed inside the shell.

[0008] Furthermore, the adapter jack includes a cylindrical jack body, a first cavity and a second cavity are axially opened inwardly at the front and rear ends of the jack body, the first cavity is a plug hole, and the second cavity is a adapter hole for inserting a pin, and a first annular surface, a second annular surface, a third annular surface and a fourth annular surface are sequentially arranged on the outer periphery of the jack body from front to back, the outer diameter of the fourth annular surface is smaller than the outer diameter of the first annular surface and smaller than the outer diameter of the third annular surface, the outer diameter of the second annular surface is larger than the outer diameter of the fourth annular surface and smaller than the outer diameter of the first annular surface, and the outer diameter of the second annular surface is larger than the outer diameter of the fourth annular surface and smaller than the outer diameter of the first annular surface. The outer diameter of the socket body is as follows: the rear insulator is in the shape of a hollow cylinder and is sleeved on the outer periphery of the fourth annular surface; the potting glue is placed on the outer periphery of the third annular surface; the front insulator comprises a hollow cylindrical body; an annular boss extending toward the outer periphery is provided at one end of the cylindrical body; the hollow cylindrical body is sleeved on the outer peripheries of the first annular surface and the second annular surface of the socket body; the end face of the annular boss contacts the front end face of the third annular surface of the socket body; and the front end face of the hollow cylindrical body is flush with the front end face of the socket body.

[0009] The present invention further provides an assembly method of the high-reliability sealed RF connector, which is achieved by the following steps:

[0010] Step 1: Insert the rear insulator into the housing by interference fit;

[0011] Step 2, axially install the fourth annular surface of the adapter jack in the rear insulator;

[0012] Step 3: Fill the potting glue between the outer periphery of the third annular surface of the adapter jack and the shell;

[0013] Step 4: Sleeve the front insulator onto the adapter jack, sleeve the positioning ring onto the annular boss of the front insulator and install it with the shell through interference fit to limit the front insulator;

[0014] Step 5. Wire connection: First, weld the welding ring and the wire shielding layer together, then put the insulating pad on the wire core, and then weld the wire core and the pin to fix it. Finally, put the welded pin into the second hole cavity of the adapter jack to achieve the termination of the wire.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the RF connector structure of the present invention can meet the requirements of airtightness without sintering treatment, and the jack and the wire are connected by pins, the assembly process is simple, and the jack does not need to be made very long, which is easy to achieve in machining process. The connector can be used in conjunction with RF connectors with the same interface to realize the transmission function of high-frequency signals, can meet the requirements of use in high-impact, strong vibration and other environments, and can also meet the requirements of airtightness.

[0016] The positioning ring of the present invention is interference fit with the shell, which can limit the movement of the front insulator on the one hand, and achieve a better electromagnetic shielding effect on the other hand, so that it can play a role of better shielding continuity. In addition, the welding ring can limit the position of the wire to prevent excessive force from damaging the rear insulator during assembly.

[0017] In summary, the high-reliability sealed RF connector of the present invention has the properties of high precision, airtightness, simple operation process, anti-electromagnetic interference, resistance to extreme environments, high reliability, etc. Especially under airtight conditions, it can not only ensure excellent signal transmission, but also improve the life of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 for Figure 1 Schematic diagram of the appearance structure;

[0020] Figure 3 It is a structural schematic diagram of the adapter jack of the present invention;

[0021] In the figure: 1-shell; 2-rear insulator; 3-potting glue; 4-front insulator; 4-1-cylindrical body; 4-2-annular boss; 5-positioning ring; 6-adapter jack; 6-1-first hole cavity; 6-2-second hole cavity; 6-3-first annular surface; 6-4-second annular surface; 6-5-third annular surface; 6-6-fourth annular surface; 7-pin; 8-insulating pad; 9-welding ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Reference Figure 1-Figure 2A high-reliability sealed radio frequency connector, the radio frequency connector comprises a shell 1, a rear insulator 2, a potting glue 3, a front insulator 4, a positioning ring 5, a transfer jack 6, a pin 7, an insulating pad 8, and a welding ring 9; the rear insulator 2 is installed in the shell 1 by interference fit, the transfer jack 6 is axially installed in the hole cavity of the rear insulator 2, the front insulator 4 is sleeved on the outer periphery of the front end of the transfer jack 6, the potting glue 3 is used to pot between the outer periphery of the transfer jack 6 between the front insulator 4 and the rear insulator 2 and the shell 1, a positioning ring 5 is sleeved on the front insulator 4, the positioning ring 5 is installed with an interference fit with the shell 1, the front insulator 4 is limited, when the transfer jack 6 is connected to the wire, the wire shielding layer is welded to the welding ring 9, the wire core is welded to the pin 7 after the insulating pad 8 is sleeved, and the welded pin 7 is sent into the transfer jack 6 to realize the termination of the wire and the connector.

[0024] The insulating pad 8 contacts the end surface of the adapter jack 6 and is placed inside the rear insulator 2 .

[0025] The front end surface of the welding ring 9 contacts the rear end surface of the rear insulator 2 and is placed inside the housing 1 .

[0026] Reference Figure 3 The adapter jack 6 comprises a cylindrical jack body, wherein a first cavity 6-1 and a second cavity 6-2 are axially opened inwardly at the front and rear ends of the jack body, wherein the first cavity 6-1 is a plug hole, and the second cavity 6-2 is a adapter hole for inserting a pin 7, and a first annular surface 6-3, a second annular surface 6-4, a third annular surface 6-5 and a fourth annular surface 6-6 are sequentially arranged on the outer periphery of the jack body from front to back, wherein the outer diameter of the fourth annular surface 6-6 is smaller than the outer diameter of the first annular surface 6-3 and smaller than the outer diameter of the third annular surface 6-5, and the outer diameter of the second annular surface 6-4 is larger than the outer diameter of the fourth annular surface 6-6 and smaller than the outer diameter of the first annular surface 6 -3 in outer diameter, the rear insulator 2 is in the shape of a hollow cylinder and is sleeved on the outer periphery of the fourth annular surface 6-6, the potting glue 3 is placed on the outer periphery of the third annular surface 6-5, the front insulator 4 includes a hollow cylindrical body 4-1, and an annular boss 4-2 extending toward the outer periphery is provided at one end of the cylindrical body 4-1, the hollow cylindrical body 4-1 is sleeved on the outer periphery of the first annular surface 6-3 and the second annular surface 6-4 of the jack body, the end face of the annular boss 4-2 is in contact with the front end face of the third annular surface 6-5 of the jack body, and the front end face of the hollow cylindrical body 4-1 is flush with the front end face of the jack body.

[0027] The present invention further provides an assembly method of the high-reliability sealed RF connector, which is achieved by the following steps:

[0028] Step 1: Insert the rear insulator 2 into the housing 1 by interference fit;

[0029] Step 2: axially install the fourth annular surface 6 - 6 of the adapter jack 6 in the rear insulator 2;

[0030] Step 3: pour the potting glue 3 between the outer periphery of the third annular surface 6 - 5 of the adapter jack 6 and the housing 1 ;

[0031] Step 4: The front insulator 4 is mounted on the adapter jack 6 and fits tightly with the potting glue 3. The positioning ring 5 is mounted on the annular boss of the front insulator 4 and installed with interference fit with the housing 1 to limit the front insulator 4;

[0032] Step 5, wire connection: first weld the welding ring 9 and the wire shielding layer together, then put the insulating pad 8 on the wire core, and then weld the wire core and the pin 7 to fix them, and finally send the welded pin 7 into the second cavity 6-2 of the adapter jack 6 to achieve the termination of the wire.

[0033] The radio frequency connector structure of the present invention does not need to be sintered. The airtight requirement can be met through the overall structural design and the use of potting glue in the shell for potting treatment. In addition, the jack and the wire are connected by pins, the assembly process is simple, the cost is reduced, and the jack does not need to be made very long (the overall length of the jack is shorter than that of the prior art), and the machining process is easy to implement. The connector can be used in conjunction with the radio frequency connector of the same interface to realize the transmission function of high-frequency signals, can meet the use requirements of high impact, strong vibration and other environments, and can also meet the airtight requirements.

[0034] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A high-reliability sealed radio frequency connector, characterized in that: The radio frequency connector comprises a shell, a rear insulator, a potting glue, a front insulator, a positioning ring, a transfer jack, a pin, an insulating pad, and a welding ring; the rear insulator is installed in the shell by interference fit, the transfer jack is axially installed in the hole cavity of the rear insulator, the front insulator is sleeved on the outer periphery of the front end of the transfer jack, the outer periphery of the transfer jack between the front insulator and the rear insulator and the shell are potted with potting glue, a positioning ring is sleeved on the front insulator, the positioning ring is installed with an interference fit with the shell, the front insulator is limited, when the transfer jack is connected to the wire, the wire shielding layer is welded to the welding ring, the wire core is welded to the pin after the insulating pad is sleeved, and the welded pin is sent into the transfer jack to realize the termination of the wire and the connector; The insulating pad is in contact with the end surface of the adapter jack and is placed inside the rear insulator; The adapter jack includes a cylindrical jack body, a first cavity and a second cavity are axially opened inward at the front and rear ends of the jack body, the first cavity is a plug hole, and the second cavity is a adapter hole for inserting a pin, and a first annular surface, a second annular surface, a third annular surface and a fourth annular surface are arranged in sequence from front to back on the outer periphery of the jack body, the outer diameter of the fourth annular surface is smaller than the outer diameter of the first annular surface and smaller than the outer diameter of the third annular surface, the outer diameter of the second annular surface is larger than the outer diameter of the fourth annular surface and smaller than the outer diameter of the first annular surface, the rear insulator is in the shape of a hollow cylinder and is sleeved on the outer periphery of the fourth annular surface, the potting glue is placed on the outer periphery of the third annular surface, the front insulator includes a hollow cylindrical body, an annular boss extending toward the outer periphery is provided at one end of the cylindrical body, the hollow cylindrical body is sleeved on the outer periphery of the first annular surface and the second annular surface of the jack body, the end face of the annular boss is in contact with the front end face of the third annular surface of the jack body, and the front end face of the hollow cylindrical body is flush with the front end face of the jack body.

2. A high-reliability sealed RF connector as claimed in claim 1, characterized in that: The front end surface of the welding ring contacts the rear end surface of the rear insulator and is placed inside the shell.

3. The method for assembling a high-reliability sealed RF connector according to claim 1 or 2, wherein the method is implemented by the following steps: Step 1: Insert the rear insulator into the housing by interference fit; Step 2, axially install the fourth annular surface of the adapter jack in the rear insulator; Step 3: Fill the potting glue between the outer periphery of the third annular surface of the adapter jack and the shell; Step 4: Sleeve the front insulator onto the adapter jack, sleeve the positioning ring onto the annular boss of the front insulator and install it with the shell through interference fit to limit the front insulator; Step 5. Wire connection: First, weld the welding ring and the wire shielding layer together, then put the insulating pad on the wire core, and then weld the wire core and the pin to fix it. Finally, put the welded pin into the second hole cavity of the adapter jack to achieve the termination of the wire.

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