Radio frequency coaxial connector matched with superfine cable

Abstract

The utility model relates to a radio frequency coaxial connector matched with a superfine cable. The radio frequency coaxial connector comprises a first shell, a second shell, a spring, a pin, a first insulator, a second insulator and a flange plate, one side of the second shell is inserted into the first shell, the flange plate and the spring are both connected to the exterior of the first shell in a sleeving mode, and the spring is located in the flange plate; the first insulator is arranged in the second shell, and the contact pin is arranged in the first insulator in a penetrating manner; the second insulator is sleeved on a core wire of the cable; a cable is inserted from the second shell, a shielding layer of the cable is welded with the second shell, and a core wire layer of the cable is welded with the tail part of the contact pin. The core wire of the cable, the shielding layer, the contact pin of the connector and the second shell are respectively welded, connected and fixed into an integrated structure, and then the stable and reliable connection of the radio frequency connector and the superfine cable is ensured through the press fit between the second shell and the first shell.

Description

Technical Field

[0001] The utility model relates to the technical field of cable connectors, in particular to a radio frequency coaxial connector for connecting ultra-thin cables. Background Art

[0002] The RF coaxial connector is a mechanical component with electrical connection characteristics. Its main function is to provide electrical connection and signal transmission between devices and components, components and cabinets, and systems and subsystems. It is one of the essential basic components for the electrical connection of the entire circuit system.

[0003] With the continuous development of military RF coaxial connector products, the functional requirements for RF coaxial connectors are becoming more and more diversified, and there are relatively few RF coaxial connectors on the market that can be matched with cables with smaller outer diameters.

[0004] Therefore, it is necessary to develop an SMP-J optical hole retractable RF coaxial connector that is installed after being matched with an ultra-fine cable board. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, provide a radio frequency coaxial connector for connecting ultra-thin cables, and solve the problem that the previous radio frequency coaxial connectors cannot connect cables with smaller outer diameters.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] Provided is a radio frequency coaxial connector for connecting an ultra-thin cable, comprising:

[0008] A first housing, a second housing, a spring, a pin, a first insulator, a second insulator and a flange;

[0009] One side of the second housing is inserted into the first housing and is fixedly connected with the first housing. The flange and the spring are both sleeved on the outside of the first housing. The spring is located in the flange. One end of the spring abuts against the first housing and the other end abuts against the flange, so that the flange abuts against the second housing axially.

[0010] The first insulator is arranged in the second housing, and the pin is inserted into the first insulator;

[0011] The second insulator is sleeved on the core wire of the cable and is suitable for insulating the core wire of the cable and the shielding layer of the cable;

[0012] The cable is inserted from the second shell, the shielding layer of the cable is welded to the second shell, and the core wire layer of the cable is welded to the pin tail.

[0013] Furthermore, the first housing includes

[0014] A first shell, wherein a first outer retaining ring is arranged outside the first shell, and a first inner retaining ring is arranged inside the first shell, wherein the first outer retaining ring is suitable for abutting against a spring, and the first inner retaining ring is suitable for abutting against a second shell and a first insulator.

[0015] Furthermore, the second housing includes

[0016] A second shell, a second limit stop ring is arranged outside the second shell, an insulating cavity and a cable cavity are formed inside the second shell, a step is formed between the insulating cavity and the cable cavity, and the first insulator is arranged in the insulating cavity.

[0017] Furthermore, a wire hole is provided at the tail end of the pin, and the core wire of the cable is inserted into the wire hole and then fixed by welding.

[0018] Furthermore, the outer diameter of the cable is 1.4 mm.

[0019] Furthermore, the flange includes

[0020] A cylinder and a disc, wherein the disc is arranged on the cylinder, screw holes are arranged around the disc, and the disc is fixedly connected to the mounting plate via connecting screws;

[0021] The cylinder is sleeved on the first shell, and an inner rib ring is formed at one end of the cylinder, and the inner rib ring is suitable for abutting against the spring.

[0022] The beneficial effects of the utility model are:

[0023] The utility model provides a radio frequency coaxial connector for connecting an ultra-fine cable, wherein the core wire and shielding layer of the cable are respectively welded and connected with the pin and the second shell of the connector to form an integrated structure, and then the second shell is press-fitted with the first shell to ensure a stable and reliable connection between the radio frequency connector and the ultra-fine cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the radio frequency coaxial connector of the utility model;

[0026] Figure 2 It is a schematic diagram of the radio frequency coaxial connector (connecting cable) of the utility model;

[0027] Figure 3 It is the cable and pin structure diagram;

[0028] in,

[0029] 1. a first outer shell, 11. a first housing, 12. a first outer stop ring, 13. a first inner stop ring;

[0030] 2. Second shell;

[0031] 3. Spring;

[0032] 4. Insert the pin;

[0033] 5. flange, 51. cylinder, 52. plate;

[0034] 61. a first insulator, 62. a second insulator;

[0035] 7. Mounting plate, 71. Connecting screws;

[0036] 8. cable, 81. core wire, 82. shielding layer. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0038] The present application provides a radio frequency coaxial connector for connecting ultra-fine cables, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0039] In order to solve the technical problem in the prior art that the radio frequency coaxial connector cannot be matched with a cable with a smaller outer diameter, an embodiment of the present application provides a radio frequency coaxial connector for matching with an ultra-thin cable, which is described in detail below.

[0040] like Figures 1 to 3 As shown, a radio frequency coaxial connector for connecting ultra-thin cables includes

[0041] A first housing 1, a second housing 2, a spring 3, a pin 4, a first insulator 61, a second insulator 62 and a flange 5;

[0042] One side of the second housing 2 is inserted into the first housing 1 and is fixedly connected to the first housing 1. The flange 5 and the spring 3 are both sleeved on the outside of the first housing 1. The spring 3 is located in the flange 5. One end of the spring 3 abuts against the first housing 1, and the other end abuts against the flange 5, so that the flange 5 axially abuts against the second housing 2.

[0043] The first insulator 61 is disposed in the second housing 2, and the plug pin 4 is inserted into the first insulator 61;

[0044] The second insulator 62 is sleeved on the core wire 81 of the cable 8 and is suitable for insulating the core wire 81 of the cable 8 and the shielding layer 82 of the cable 8;

[0045] The cable 8 is inserted from the second housing 2 , the shielding layer 82 of the cable 8 is welded to the second housing 2 , and the core wire 81 of the cable 8 is welded to the tail of the pin 4 .

[0046] Specifically, as an optional implementation in this embodiment, Figure 1 Figure 2 As shown, the first housing 1 includes

[0047] The first shell 11 has a first outer retaining ring 12 disposed outside the first shell 11 and a first inner retaining ring 13 disposed inside the first shell 11. The first outer retaining ring 12 is suitable for abutting against the spring 3, and the first inner retaining ring 13 is suitable for abutting against the second shell 2 and the first insulator.

[0048] Specifically, as an optional implementation in this embodiment, Figure 1 Figure 2 As shown, the second housing 2 includes

[0049] A second shell, a second limit stop ring is arranged outside the second shell, an insulating cavity and a cable cavity are formed inside the second shell, a step is formed between the insulating cavity and the cable cavity, and the first insulator is arranged in the insulating cavity.

[0050] Further, specifically, as an optional implementation in this embodiment, Figure 3 As shown, a wire hole is formed at the tail end of the plug pin 4, and the core wire 81 of the cable 8 is inserted into the wire hole and then fixed by welding.

[0051] One end of the flange 5 is in contact with the second housing 2.

[0052] Specifically, as an optional implementation in this embodiment, Figure 1 As shown, the outer diameter of the cable 8 is 1.4 mm.

[0053] Specifically, as an optional implementation in this embodiment, Figure 1 Figure 2 As shown, the flange 5 includes

[0054] The cylinder 51 and the disk 52, the disk 52 is arranged on the cylinder 51, the disk 52 is provided with screw holes around, and the disk 52 is fixedly connected to the mounting plate 7 via connecting screws 71;

[0055] The cylinder 51 is sleeved on the first housing 1 , and an inner rib ring is formed at one end of the cylinder 51 . The inner rib ring is suitable for abutting against the spring 3 .

[0056] After the radio frequency coaxial connector of the utility model is fixed on the mounting plate 7 by the flange plate 5, the expansion and contraction of the radio frequency coaxial connector is achieved by relying on the elastic force of the spring 3.

[0057] In this embodiment, the pin 4 is made of brass material with gold plating on the surface; the shell is made of stainless steel material with surface passivation; while ensuring structural strength, it has good dimensional processing consistency; the insulator is polytetrafluoroethylene.

[0058] When the RF coaxial connector of the utility model is connected to the cable 8, the core wire 81 of the cable 8 is first installed into the second insulator 62 and then welded to the pin 4, and then installed together into the second shell 2, and the shielding layer 82 of the cable 8 is welded to the second shell 2. Then the second shell 2 is press-fitted with the first shell 1, and the assembly mode between the first insulator 61, the pin 4, and the second insulator 62 ensures the connection between the RF connector of the utility model and the ultra-fine cable, and the fixed installation behind the connector plate is realized through the threaded holes on the flange 5.

[0059] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0060] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0062] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0063] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0064] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0065] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A radio frequency coaxial connector for connecting ultra-fine cables, characterized in that: include A first housing (1), a second housing (2), a spring (3), a pin (4), a first insulator (61), a second insulator (62), and a flange (5); One side of the second housing (2) is inserted into the first housing (1) and is fixedly connected to the first housing (1); the flange (5) and the spring (3) are both sleeved on the outside of the first housing (1); the spring (3) is located inside the flange (5); one end of the spring (3) abuts against the first housing (1) and the other end abuts against the flange (5), so that the flange (5) is axially abutted against the second housing (2); The first insulator (61) is arranged in the second housing (2), and the plug pin (4) is inserted into the first insulator (61); The second insulator (62) is sleeved on the core wire (81) of the cable (8) and is suitable for insulating the core wire (81) of the cable (8) and the shielding layer (82) of the cable (8); The cable (8) is inserted into the second housing (2), the shielding layer (82) of the cable (8) is welded to the second housing (2), and the core wire (81) layer of the cable (8) is welded to the tail of the pin (4).

2. The radio frequency coaxial connector for connecting ultra-fine cables according to claim 1 is characterized in that: The first housing (1) comprises A first shell (11), wherein a first outer retaining ring (12) is arranged outside the first shell (11), and a first inner retaining ring (13) is arranged inside the first shell (11), wherein the first outer retaining ring (12) is suitable for abutting against a spring (3), and the first inner retaining ring (13) is suitable for abutting against a second shell (2) and a first insulator.

3. The radio frequency coaxial connector for connecting ultra-fine cables according to claim 2 is characterized in that: The second housing (2) comprises A second shell, a second limit stop ring is arranged outside the second shell, an insulating cavity and a cable cavity are formed inside the second shell, a step is formed between the insulating cavity and the cable cavity, and the first insulator is arranged in the insulating cavity.

4. The radio frequency coaxial connector for connecting ultra-fine cables according to claim 1, characterized in that: A wire hole is formed at the rear end of the plug pin (4), and the core wire (81) of the cable (8) is inserted into the wire hole and then fixed by welding.

5. The radio frequency coaxial connector for connecting ultra-fine cables according to claim 1, characterized in that: The outer diameter of the cable (8) is 1.4 mm.

6. The radio frequency coaxial connector for connecting ultra-fine cables according to claim 1, characterized in that: The flange (5) comprises A cylinder (51) and a disk (52), wherein the disk (52) is arranged on the cylinder (51), screw holes are arranged around the disk (52), and the disk (52) is fixedly connected to the mounting plate (7) via connecting screws (71); the cylinder (51) is sleeved on the first housing (1), and an inner retaining ring is formed at one end of the cylinder (51), and the inner retaining ring is suitable for abutting against the spring (3).

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