Radio frequency coaxial connector capable of being matched with superfine cable for through-wall installation

Abstract

The utility model relates to a wall-penetrating radio frequency coaxial connector capable of being matched with a superfine cable. The wall-penetrating radio frequency coaxial connector comprises an outer shell assembly and an inner shell assembly, a through-wall mounting structure is arranged on the shell assembly; the inner shell assembly comprises an inner shell part, a first insulator, a second insulator and a contact pin, the cable penetrates through the inner shell part, a shielding layer of the cable is welded and fixed with the inner shell part, a core wire of the cable is welded and fixed with the contact pin, the first insulator is sleeved on the contact pin, and the second insulator is sleeved on the core wire, so that the contact pin is separated from the shielding layer and the inner shell part; the first insulator, the second insulator and the inner shell piece of the inner shell assembly are pressed into the outer shell assembly together to be fixedly connected. The shielding layer and the core wire of the cable are directly welded and fixed with the inner shell assembly, and then the outer shell piece, the first insulator, the second insulator and the contact pin in the inner shell assembly are made into a combined piece to be in press fit with the outer shell assembly, so that the connector can be stably connected with the superfine cable.

Description

Technical Field

[0001] The utility model relates to the technical field of cable connectors, in particular to a radio frequency coaxial connector which can be matched with ultra-thin cables and installed through walls. 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 diverse. In addition, there are relatively few RF coaxial connectors on the market that can be used with cables with smaller outer diameters. Therefore, it is necessary to develop an SMA-K RF coaxial connector that can be used with ultra-thin cables for through-wall installation. Utility Model Content

[0004] 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 that can be matched with ultra-thin cables for through-wall installation, and solve the problem that the current radio frequency coaxial connector is difficult to match with cables with smaller outer diameters.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Provided is a radio frequency coaxial connector that can be matched with ultra-thin cables and installed through walls, including

[0007] An outer shell component and an inner shell component; the outer shell component is provided with a through-wall mounting structure;

[0008] The inner shell assembly includes an inner shell, a first insulator, a second insulator and a plug pin. The cable passes through the inner shell, and its shielding layer is welded and fixed to the inner shell, and its core wire is welded and fixed to the plug pin. The first insulator is sleeved on the plug pin, and the second insulator is sleeved on the core wire to separate the plug pin from the shielding layer and the inner shell.

[0009] The first insulator, the second insulator and the inner shell component of the inner shell component are pressed together into the outer shell component for fixed connection.

[0010] Furthermore, the housing assembly includes

[0011] The outer shell is provided with an external thread and an external rib on its outer surface. The external rib is integrally arranged at the end of the outer shell body. A locking nut is arranged on the external thread. A clamping cavity matched with the wall is formed between the locking nut and the external rib.

[0012] Furthermore, an internal tooth washer is provided on the outer shell, and the internal tooth washer is located between the locking nut and the outer rib.

[0013] Furthermore, a first limiting ring is arranged in the inner cavity of the outer shell, and the first limiting ring is adapted to abut against the front end of the first insulator to limit the axial forward movement of the first insulator;

[0014] A second limiting ring is arranged at the tail of the plug pin, and the second limiting ring is suitable for abutting against the rear end of the first insulator to limit the axial forward movement of the plug pin.

[0015] Furthermore, the pin is made of beryllium bronze material.

[0016] Furthermore, the first insulator and the second insulator are made of polytetrafluoroethylene.

[0017] Furthermore, the outer diameter of the cable is 1.4 mm.

[0018] The beneficial effects of the utility model are:

[0019] The radio frequency coaxial connector of the utility model directly welds the shielding layer and the core wire of the cable to the inner shell component, and then makes the outer shell component, the first insulator, the second insulator and the pin in the inner shell component into an assembly to be press-fitted with the outer shell component, so as to ensure that the connector can be stably connected to the ultra-fine cable.

[0020] The second limiting ring at the rear end of the plug pin can be axially abutted against the first insulator to prevent the plug pin from axially moving during the plugging process with the mating cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the radio frequency coaxial connector of the utility model;

[0023] Figure 2 This is a schematic diagram of the radio frequency coaxial connector of the utility model (when connecting a cable);

[0024] Figure 3 is a schematic diagram of the housing assembly;

[0025] Figure 4 is a schematic diagram of the inner shell assembly;

[0026] Figure 5 It is a cable schematic diagram;

[0027] Among them, 1, cable, 11, shielding layer, 12, core wire;

[0028] 2. housing assembly, 21. housing member, 211. first limiting ring, 22. outer rib, 23. locking nut, 24. inner tooth washer;

[0029] 3. Inner shell assembly, 31. Inner shell component, 32. First insulator, 33. Second insulator, 34. Pin, 341. Second limiting ring. DETAILED DESCRIPTION

[0030] 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.

[0031] The present application provides a radio frequency coaxial connector that can be connected to an ultra-thin cable for through-wall installation, 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.

[0032] In order to solve the technical problem in the prior art that RF coaxial connectors are difficult to mate with cables with smaller outer diameters, an embodiment of the present application provides a RF coaxial connector that can be mate with ultra-thin cables for through-wall installation.

[0033] like Figures 1 to 4 As shown, a radio frequency coaxial connector that can be matched with ultra-thin cables for through-wall installation includes

[0034] An outer shell component 2 and an inner shell component 3; the outer shell component 2 is provided with a through-wall mounting structure;

[0035] The inner shell assembly 3 includes an inner shell 31, a first insulator 32, a second insulator 33 and a plug 34. The cable 1 passes through the inner shell 31, and its shielding layer 11 is fixed to the inner shell 31 by welding, and its core wire 12 is fixed to the plug 34 by welding. The first insulator 32 is sleeved on the plug 34, and the second insulator 33 is sleeved on the core wire 12 to separate the plug 34 from the shielding layer 11 and the inner shell 31.

[0036] The first insulator 32 , the second insulator 33 and the inner shell component 31 of the inner shell component 3 are pressed together into the outer shell component 2 for fixed connection.

[0037] Specifically, as an optional implementation in this embodiment, Figure 3As shown, the housing assembly 2 includes

[0038] The outer shell 21 is provided with an external thread and an external rib 22 on its outer surface. The external rib 22 is integrally arranged at the end of the outer shell. A locking nut 23 is arranged on the external thread. A clamping cavity matched with the wall is formed between the locking nut 23 and the external rib 22.

[0039] Specifically, as an optional implementation in this embodiment, Figure 1 Figure 2 As shown, an inner tooth washer 24 is provided on the outer shell 21 , and the inner tooth washer 24 is located between the locking nut 23 and the outer rib 22 .

[0040] Both sides of the inner-tooth washer 24 are provided with teeth, and the inner-tooth washer 24 can prevent the locking nut 23 from loosening through the teeth on both sides.

[0041] Specifically, as an optional implementation in this embodiment, Figure 1 Figure 3 As shown, a first limiting ring 211 is disposed in the inner cavity of the outer shell 21, and the first limiting ring 211 is adapted to abut against the front end of the first insulator 32 to limit the axial forward movement of the first insulator 32;

[0042] A second limiting ring 341 is disposed at the tail of the plug pin 34 , and the second limiting ring 341 is adapted to abut against the rear end of the first insulator 32 to limit the axial forward movement of the plug pin 34 .

[0043] In this embodiment, a ring groove for cooperating with the first limiting ring 211 is formed at the front end of the first insulator 32 .

[0044] The first limiting ring 211 limits the forward movement of the first insulator 32, thereby limiting the forward movement of the pin 34, and ultimately limiting the forward movement of the core wire 12. The front end of the pin 34 is frequently plugged in and out during the connection process of the external cable plug. When the cable is pulled out, the plug will be subjected to an outward pulling force. Now, the pulling force is directly applied to the outer shell through two limiting rings to ensure that the pin 34 is structurally stable in the connector.

[0045] In this embodiment, the plug pin 34 is made of beryllium bronze material, and the surface of the plug pin 34 is gold-plated;

[0046] In this embodiment, the outer shell 21 is made of brass with gold plating on the surface; it can ensure structural strength and have good dimensional processing consistency;

[0047] In this embodiment, the first insulator 32 and the second insulator 33 are made of polytetrafluoroethylene.

[0048] In this embodiment, the outer diameter of the ultra-fine cable 1 is 1.4 mm.

[0049] In this embodiment, the specific welding structure of the core wire 12 and the pin 34 is as follows: a wire hole is opened at the tail of the pin 34, the core wire 12 is inserted into the wire hole, and then a solder hole is radially opened at the tail of the pin 34, and the solder enters the wire hole through the solder hole, thereby welding and fixing the core wire 12 and the pin 34.

[0050] In this embodiment, the cross section of the second insulator 33 is an L-shaped structure. The second insulator 33 separates the first insulator 32 and the outer shell 21 , and the second insulator 33 also separates the pin 34 and the shielding layer 11 .

[0051] When assembling the cable 1, first assemble the inner shell component 3, the second insulating member is sleeved on the core wire 12, the shielding layer 11 is inserted into the inner shell component 31 and then welded, the core wire 12 is inserted into the pin 34 and then welded, and finally the first insulating member is installed on the pin 34. At this time, the inner shell component 3 is assembled as a whole, and then the entire inner shell component 3 is inserted into the outer shell component 21, and the outer shell component 21 passes through the installation hole on the wall, and finally the internal tooth washer 24 and the locking nut 23 are installed. The locking nut 23 is tightened to fix the outer shell component 2 on the wall.

[0052] 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.

[0053] 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.

[0054] 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 a limitation on 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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 that can be connected to ultra-thin cables and installed through walls. Its characteristics are: include An outer shell component and an inner shell component; the outer shell component is provided with a through-wall mounting structure; The inner shell assembly includes an inner shell, a first insulator, a second insulator and a plug pin. The cable passes through the inner shell, and its shielding layer is welded and fixed to the inner shell, and its core wire is welded and fixed to the plug pin. The first insulator is sleeved on the plug pin, and the second insulator is sleeved on the core wire to separate the plug pin from the shielding layer and the inner shell. The first insulator, the second insulator and the inner shell component of the inner shell component are pressed together into the outer shell component for fixed connection.

2. The radio frequency coaxial connector that can be connected to an ultra-thin cable and installed through a wall according to claim 1, Its characteristics are: The housing assembly includes The outer shell is provided with an external thread and an external rib on its outer surface. The external rib is integrally arranged at the end of the outer shell body. A locking nut is arranged on the external thread. A clamping cavity matched with the wall is formed between the locking nut and the external rib.

3. The radio frequency coaxial connector that can be connected to an ultra-thin cable and installed through a wall according to claim 2, Its characteristics are: An inner tooth washer is arranged on the outer shell component, and the inner tooth washer is located between the locking nut and the outer rib.

4. The radio frequency coaxial connector that can be connected to an ultra-thin cable and installed through a wall according to claim 2, Its characteristics are: A first limiting ring is arranged in the inner cavity of the outer shell, and the first limiting ring is adapted to abut against the front end of the first insulator to limit the axial forward movement of the first insulator; A second limiting ring is arranged at the tail of the plug pin, and the second limiting ring is suitable for abutting against the rear end of the first insulator to limit the axial forward movement of the plug pin.

5. The radio frequency coaxial connector capable of being connected to an ultra-thin cable and installed through a wall according to claim 1, Its characteristics are: The pin is made of beryllium copper material.

6. The radio frequency coaxial connector capable of being connected to an ultra-thin cable and installed through a wall according to claim 1, Its characteristics are: The first insulator and the second insulator are made of polytetrafluoroethylene.

7. The radio frequency coaxial connector capable of being connected to an ultra-thin cable and installed through a wall according to claim 1, Its characteristics are: The outer diameter of the cable is 1.4 mm.

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