Optical hole type radio frequency coaxial connector

Abstract

The utility model relates to an unthreaded hole type radio frequency coaxial connector comprising a first housing, a left cavity, a middle cavity and a right cavity are arranged in the first housing, a first insulator is arranged in the middle cavity, a pin is fixed in the first insulator, and the outer wall of the first housing is provided with external threads; the second shell is arranged in the right cavity, the left end of the second shell abuts against the first insulator and the first shell, and the rear end of the second shell abuts against the third shell; and the left end of the third shell extends into the right cavity of the first shell and is riveted with the first shell. A cable core wire, a cable shielding layer, a contact pin and a third shell are respectively connected, the connection of the connector and a superfine cable is ensured through the split press-fit of the three shells, a mortise shrinking structure and the assembly of the contact pin through two insulators, and the connector and the cable pass through a mounting plate together through external threads for integral installation. Through the connector, a cable with an external diameter of 1.4 mm can be matched and connected, and the requirement of through-wall installation can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of radio frequency coaxial connectors, in particular to a light hole type radio frequency coaxial connector. 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.

[0004] Therefore, it is necessary to develop an SSMP-J optical hole type RF coaxial connector that can be connected to ultra-fine cables and installed through board threads. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, to provide a light hole type radio frequency coaxial connector, and to solve the technical problem that the radio frequency coaxial connectors on the current market are difficult to match with cables with smaller outer diameters.

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

[0007] Provided is a light hole type radio frequency coaxial connector, characterized in that it includes

[0008] A first shell, wherein a left cavity, a middle cavity and a right cavity are provided in the first shell, a first insulator is provided in the middle cavity, a pin is fixed in the first insulator, and an outer wall of the first shell is provided with an external thread for connecting with a mounting plate;

[0009] a second housing, the second housing being disposed in the right cavity, the left end of the second housing abutting against the first insulator and the first housing, and the rear end of the second housing abutting against the third housing;

[0010] The third shell has a left end extending into the right cavity of the first shell and is riveted to the first shell;

[0011] The cable is inserted from the rear end of the third shell, the core wire of the cable is connected to the pin by welding, the shielding layer of the cable is welded to the third shell, a second insulator is arranged on the core wire, the second insulator is located between the pin and the shielding layer, and the second insulator is located in the second shell.

[0012] Furthermore, a riveting ring groove is provided on the outer wall of the third shell, and the right cavity opening of the first shell forms a riveting ring edge, and the riveting ring edge is riveted into the ring groove to rivet the first shell and the third shell together.

[0013] Furthermore, the left cavity of the first shell is a light hole.

[0014] Furthermore, an inner convex ring is formed at the right end of the second shell, and the second insulator is located in the inner convex ring.

[0015] Furthermore, the second shell is connected in an interference fit manner in the right cavity.

[0016] Furthermore, the pin is made of beryllium bronze material, and its surface is gold-plated; the first shell, the second shell and the third shell are all made of brass material, and their surfaces are gold-plated.

[0017] The beneficial effects of the utility model are:

[0018] The optical hole type radio frequency coaxial connector of the utility model connects the cable core wire, the cable shielding layer with the pin and the third shell respectively, and uses the split press-fit and mortise-and-tenon structure of the three shells, and the pin is assembled through two insulators to ensure the connection between the connector and the ultra-fine cable. The external thread on the first shell enables the connector and the cable to pass through the mounting plate together and be installed as a whole with the mounting plate.

[0019] This connector can be used to connect cables with an outer diameter of 1.4 mm and meet the needs of through-the-wall installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the optical hole type radio frequency coaxial connector of the utility model;

[0022] Figure 2 It is an assembly structure diagram of the first housing, the first insulator and the second housing;

[0023] Figure 3 It is the assembly structure diagram between the third housing, cable and pins;

[0024] Figure 4 It is a schematic diagram of the optical hole type radio frequency coaxial connector connecting the cable of the utility model;

[0025] Figure 5 It is a schematic diagram of the connection between the optical hole type radio frequency coaxial connector of the utility model and the mounting plate;

[0026] Among them, 1, first shell, 11, riveted ring edge, 12, external thread; 1-1, left cavity;

[0027] 2. second housing, 21. inner convex ring, 3. third housing, 31. riveted ring groove;

[0028] 41, first insulator, 42, second insulator;

[0029] 5. Insert the pin;

[0030] 6 cable, 61, core wire, 62, shielding layer;

[0031] 7. Install the plate. DETAILED DESCRIPTION

[0032] 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.

[0033] The present application provides a light hole type RF coaxial connector, 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.

[0034] In order to solve the technical problem that the radio frequency coaxial connector in the prior art is difficult to mate with a cable with a smaller outer diameter, an embodiment of the present application provides a light hole type radio frequency coaxial connector, which is described in detail below.

[0035] like Figures 1 to 4 As shown, a light hole type radio frequency coaxial connector includes

[0036] A first shell 1, wherein a left cavity 1-1, a middle cavity and a right cavity are provided in the first shell 1, a first insulator 41 is provided in the middle cavity, a pin 5 is fixed in the first insulator 41, and an outer wall of the first shell 1 is provided with an external thread 12 for connecting with a mounting plate;

[0037] A second housing 2, which is disposed in the right cavity, with its left end abutting against the first insulator 41 and the first housing 1, and its rear end abutting against the third housing 3;

[0038] The third housing 3 has its left end extending into the right cavity of the first housing 1 and is riveted to the first housing 1 .

[0039] In this embodiment, the middle cavity is a stepped hole, and the first insulator 41 is placed in the middle cavity, with the left end thereof blocked by the step.

[0040] Specifically, as an optional implementation in this embodiment, Figures 1 to 3 As shown, a riveting ring groove 31 is provided on the outer wall of the third shell 3 , and a riveting ring edge 11 is formed at the right cavity opening of the first shell 1 . The riveting ring edge 11 is riveted into the ring groove 31 to rivet the first shell 1 and the third shell 3 together.

[0041] The right end of the first housing 1 is riveted by the riveting ring edge 11, and the riveting edge enters the riveting ring groove 31.

[0042] Specifically, as an optional implementation in this embodiment, Figure 1 Figure 2 As shown, the left cavity 1 - 1 of the first housing 1 is a light hole.

[0043] Specifically, as an optional implementation in this embodiment, Figure 1 Figure 2 As shown, an inner convex ring 21 is formed at the right end of the second housing 2 , and the second insulator 42 is located in the inner convex ring 21 .

[0044] In this embodiment, the second housing 2 is connected by interference fit in the right cavity.

[0045] In this embodiment, the pin 5 is made of beryllium bronze material, and its surface is gold-plated; the first shell 1, the second shell 2 and the third shell 3 are all made of brass material, and their surfaces are gold-plated, which can ensure structural strength and have good dimensional processing consistency.

[0046] The cable 6 includes a sheath, a shielding layer 62, an insulating layer and a core wire 61 from the outside to the inside. The core wire 61 and the insulating layer are respectively connected by spot welding.

[0047] When the cable 6 is connected to the optical hole type RF coaxial connector of the utility model, the cable 6 is inserted from the rear end of the third shell 3, the core wire 61 of the cable 6 is welded to the pin 5, the shielding layer 62 of the cable 6 is welded to the third shell 3, and a second insulator 42 is arranged on the core wire 61, the second insulator 42 is located between the pin 5 and the shielding layer 62, and the second insulator 42 is located in the second shell 2, and finally the first shell 1 is riveted to the third shell 3 to ensure the connection between the connector and the ultra-fine cable.

[0048] like Figure 5 As shown, the optical hole type RF coaxial connector of the utility model is arranged on a mounting plate, a threaded hole is provided on the mounting plate, and the threaded hole is connected to the external thread 12 of the first housing 1, so that the connector and the cable 6 pass through the mounting plate together and are installed as a whole with the mounting plate.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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 light hole type radio frequency coaxial connector, characterized in that: include A first shell (1), wherein a left cavity (1-1), a middle cavity and a right cavity are provided in the first shell (1), a first insulator (41) is arranged in the middle cavity, a pin (5) is fixed in the first insulator (41), and an outer wall of the first shell (1) is provided with an external thread (12) for connecting to a mounting plate (7); A second shell (2), the second shell (2) being arranged in the right cavity, with its left end abutting against the first insulator (41) and the first shell (1), and its rear end abutting against the third shell (3); A third housing (3), the left end of which extends into the right cavity of the first housing (1) and is riveted to the first housing (1); The cable (6) is inserted from the rear end of the third housing (3); the core wire (61) of the cable (6) is connected to the plug pin (5) by welding; the shielding layer (62) of the cable (6) is welded to the third housing (3); a second insulator (42) is arranged on the core wire (61); the second insulator (42) is located between the plug pin (5) and the shielding layer (62); and the second insulator (42) is located in the second housing (2).

2. The optical hole type radio frequency coaxial connector according to claim 1, characterized in that: A riveting ring groove (31) is provided on the outer wall of the third shell (3), and a riveting ring edge (11) is formed at the right cavity opening of the first shell (1). The riveting ring edge (11) is riveted into the ring groove (31) to rivet the first shell (1) and the third shell (3) together.

3. The optical hole type radio frequency coaxial connector according to claim 1, characterized in that: The left cavity (1-1) of the first housing (1) is a light hole.

4. The optical hole type radio frequency coaxial connector according to claim 1, characterized in that: An inner convex ring (21) is formed at the right end of the second housing (2), and the second insulator (42) is located inside the inner convex ring (21).

5. The optical hole type radio frequency coaxial connector according to claim 1, characterized in that: The second housing (2) is connected by interference fit in the right cavity.

6. The optical hole type radio frequency coaxial connector according to claim 1, characterized in that: The plug pin (5) is made of beryllium bronze material, and its surface is plated with gold; the first shell (1), the second shell (2) and the third shell (3) are all made of brass material, and their surfaces are plated with gold.

Images