Floating type cable connector

Abstract

The utility model relates to a floating type cable connector which comprises a contact assembly at the front end, a welding assembly at the rear end and a connecting assembly in the middle. The contact assembly comprises a first shell, a first insulator and a first inner conductor; the welding assembly comprises a second shell, a second insulator and a second inner conductor; the rear end of the connecting assembly is fixedly connected with the front end of the second shell, the front end of the connecting assembly is axially and elastically matched with the first shell, and the contact assembly axially and elastically moves at the front end of the welding assembly through the connecting assembly. According to the floating type cable connector provided by the utility model, the contact assembly at the front end can perform axial and radial floating relative to the welding assembly at the rear end, so that the plugging requirement of multiple connectors is met, and high-quality and high-reliability radio frequency signal transmission is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cable connectors, in particular to a floating cable connector. Background Art

[0002] A connector is a mechanical component with electrical connection characteristics. Its main function is to provide electrical connection and signal transmission between various interfaces. 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 connector products, the degree of modularization, integration and density of products is getting higher and higher. Microstrip connectors, push-in connectors and floating connectors are widely used in the modular interconnection of subsystems in the whole system of electronics, communications and other fields.

[0004] At present, as one of the commonly used connectors on the market, SMP connector has the characteristics of wide frequency band, large power capacity, suitable for blind mating, fast separation or connection, etc. It is suitable for small space, high-density installation, modularization and other usage occasions.

[0005] When SMP connectors are used for inter-board interconnection, the fixed-end mounting board usually adopts the SMP-J interface, and the movable-end mounting board adopts the SMP-K interface. To ensure the reliability of electrical connection, the accuracy of the installation distance between the mounting boards and the flatness of the mounting boards are very high. Therefore, it is necessary to develop an SMP-K floating cable connector. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a floating cable connector to solve the problems of low transmission quality and unreliability of the previous cable connectors when connecting with paper parts of the mounting plate.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A floating cable connector is provided, comprising:

[0009] The contact component at the front end, the welding component at the rear end, and the connecting component in the middle;

[0010] The contact assembly comprises a first housing, a first insulator and a first inner conductor, wherein the first inner conductor is fixed in the first housing via the first insulator;

[0011] The welding assembly comprises a second outer shell, a second insulator and a second inner conductor, wherein the second inner conductor is fixed in the second outer shell via the second insulator;

[0012] The first inner conductor and the rear end of the first outer shell respectively form an axial sliding plug-in fit with the second inner conductor and the front end of the second outer shell;

[0013] The rear end of the connecting component is fixedly connected to the front end of the second shell, the front end of the connecting component forms an axial elastic fit with the first shell, and the contact component moves axially elastically at the front end of the welding component through the connecting component.

[0014] Furthermore, the connecting assembly includes a connecting tube, a spring and an elastic collar;

[0015] The second outer shell is sleeved at the rear end of the connecting tube to form a fixed connection, an inner limiting ring is formed at the front end of the connecting tube, the rear end of the first outer shell is inserted into the connecting tube, and the inner limiting ring is suitable for limiting the axial movement of the first outer shell out of the connecting tube;

[0016] The elastic clamp ring is arranged in the connecting tube, and the front and rear ends of the spring are respectively in contact with the first shell and the elastic clamp ring to axially tighten the first shell and the inner limit ring.

[0017] Furthermore, a radial floating gap is provided between the connecting tube and the first housing;

[0018] A split-groove elastic hole is formed at the contact portion at the rear end of the first shell, so that when the first shell floats radially, its contact portion is always in a meshing contact state with the first shell.

[0019] Furthermore, the first inner conductor is provided with a plug hole, a barb ring, a limit ring and a plug pin in sequence from front to back;

[0020] The second inner conductor is provided with a plug hole, a barb ring, a positioning surface and a welding hole in sequence from front to back.

[0021] Furthermore, both the front and rear ends of the first shell are provided with split-groove elastic holes, and an outer limiting ring is provided on the first shell, and the outer limiting ring is suitable for axially abutting with the inner limiting ring.

[0022] Furthermore, the second shell is in an L-shaped structure, which includes a transverse shell and a vertical shell. An operation hole is provided at the rear end of the transverse shell, and a rear insulator and a rear cover plate are arranged in the operation hole.

[0023] The beneficial effects of the utility model are:

[0024] The utility model provides a floating cable connector, wherein a front contact component can float axially and radially relative to a rear welding component, thereby meeting the plug-in requirements of multi-channel connectors and ensuring high-quality and high-reliability radio frequency signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] Figure 1 This is a half-section view of the floating cable connector of the utility model;

[0027] Figure 2 This is a front view of the floating cable connector of the utility model;

[0028] Figure 3 is a plug-in fit diagram between a first inner conductor and a second inner conductor;

[0029] Figure 4 is a plug-in fit diagram between a first outer conductor and a second outer conductor;

[0030] Figure 5 is a diagram of the coordination between the first outer conductor, the second outer conductor and the connection assembly;

[0031] in,

[0032] 11. first housing, 111. split groove elastic hole, 112. outer limiting ring, 113. rear abutting end surface;

[0033] 12. first insulator, 13. first inner conductor; 131. first plug hole, 132. first barb ring, 133. first limit ring, 134. plug pin;

[0034] 21. second housing, 211. transverse housing, 2111. front abutting end surface, 212. vertical housing;

[0035] 22. second insulator, 23. second inner conductor, 231. second plug hole, 232. second barb ring, 233. positioning surface, 234. welding hole;

[0036] 3. Connecting assembly, 31. Connecting tube, 311. Internal limiting ring, 312. Flange, 32. Spring, 33. Elastic clamping ring;

[0037] 41. Rear insulator, 42. Rear cover. DETAILED DESCRIPTION

[0038] 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.

[0039] The present application provides a floating cable 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.

[0040] In order to solve the technical problem that the cable connector in the prior art has low transmission quality and is unreliable when connecting the mounting plate and paper parts, an embodiment of the present application provides a floating cable connector, which is described in detail below.

[0041] like Figures 1 to 5 As shown, a floating cable connector includes

[0042] A contact component at the front end, a welding component at the rear end, and a connecting component 3 in the middle;

[0043] The contact assembly comprises a first housing 11, a first insulator 12 and a first inner conductor 13, wherein the first inner conductor 13 is fixed in the first housing 11 via the first insulator 12;

[0044] The welding assembly includes a second outer shell 21, a second insulator 22 and a second inner conductor 23, wherein the second inner conductor 23 is fixed in the second outer shell 21 via the second insulator 22;

[0045] The first inner conductor 13 and the rear end of the first outer shell 11 respectively form an axial sliding plug-in fit with the second inner conductor 23 and the front end of the second outer shell 21;

[0046] The rear end of the connecting component 3 is fixedly connected to the front end of the second shell 21, and the front end of the connecting component 3 forms an axial elastic fit with the first shell 11. The contact component moves axially elastically at the front end of the welding component through the connecting component 3.

[0047] In this embodiment, the first outer shell 11, the first inner conductor 13, the second outer shell 21 and the second inner conductor 23 are made of beryllium copper as elastic parts.

[0048] The axial floating clearance between the first housing 11 and the second housing 21 is controlled by the distance between the front and rear end surfaces of the two housings. Figure 4 As shown, the rear end of the first shell 11 is provided with a rear abutting end surface 113, and the front end of the second shell 21 is provided with a front abutting end surface 2111. The floating clearance between the rear abutting end surface 113 and the front abutting end surface 2111 is controlled within ±0.4 mm.

[0049] The first insulator 12 and the second insulator 22 are made of polytetrafluoroethylene material and serve as insulating medium support members.

[0050] Specifically, as an optional implementation in this embodiment, Figures 1 to 5 As shown, the connecting assembly 3 includes a connecting cylinder 31, a spring 32 and an elastic collar 33;

[0051] The rear end of the connecting tube 31 is sleeved with the second housing 21 to form a fixed connection, and the front end of the connecting tube 31 forms an inner stop ring 311. The rear end of the first housing 11 is inserted into the connecting tube 31, and the inner stop ring 311 is suitable for limiting the axial movement of the first housing 11 out of the connecting tube 31.

[0052] The elastic collar 33 is disposed in the connecting tube 31 , and the front and rear ends of the spring 32 are respectively in contact with the first housing 11 and the elastic collar 33 to axially press the first housing 11 against the inner limit ring 311 .

[0053] In this embodiment, the elastic collar 33 is a C-shaped collar. The elastic collar 33 has an opening, and the outer circle can be elastically contracted.

[0054] In this embodiment, the spring 32 and the elastic collar 33 are made of conductive materials.

[0055] In this embodiment, the second housing 21 at the rear end of the connecting tube 31 is fixed by interference fitting.

[0056] Specifically, as an optional implementation in this embodiment, both front and rear ends of the first shell 11 are provided with split-groove elastic holes 111, and an outer limiting ring 112 is provided on the first shell 11, and the outer limiting ring 112 is suitable for axial abutment cooperation with the inner limiting ring 311.

[0057] Specifically, as an optional implementation in this embodiment, a radial floating gap is provided between the connecting tube 31 and the first housing 11;

[0058] A split-groove elastic hole 111 is formed at the contact portion at the rear end of the first housing 11 so that the contact portion is always in a meshing contact state with the first housing 11 when the first housing 11 floats radially.

[0059] In this embodiment, by increasing the radial floating gap, a radial floating space is provided for the first shell 11 at the front end of the connector, and the radial floating gap is ±0.1 mm; the floating gap is controlled by the distance between the inner ring of the inner limit ring 311 and the outer ring of the first shell 11, and the outer ring of the outer limit ring 112 and the inner wall of the connecting tube 31.

[0060] Specifically, as an optional implementation in this embodiment, the first inner conductor 13 is provided with a first plug hole 131, a first barb ring 132, a first limit ring 133 and a plug pin 134 in sequence from front to back;

[0061] The second inner conductor 23 is provided with a second insertion hole 231 , a second barb ring 232 , a positioning surface 233 and a welding hole 234 in sequence from front to back.

[0062] The first plug hole 131 is used to be plugged into an external cable connector, and the first barb ring 132 and the first limiting ring 133 cooperate with the first insulator 12 to limit the position of the first inner conductor 13 in the first insulator 12;

[0063] The second inner conductor 23 cooperates with the second barb ring 232 , the positioning surface 233 and the second insulator 22 to limit the position of the second inner conductor 23 in the second insulator 22 .

[0064] Specifically, as an optional implementation in this embodiment, the second shell 21 is L-shaped, including a transverse shell 211 and a vertical shell 212. An operation hole is provided at the rear end of the transverse shell 211, and a rear insulator 41 and a rear cover plate 42 are arranged in the operation hole.

[0065] Specifically, as an optional implementation in this embodiment, a flange 312 is provided on the connecting tube 31 .

[0066] When the floating cable connector of the utility model is used to connect cables, the rear cover plate 42 and the rear insulator 41 are opened.

[0067] The vertical shell 212 is used to be welded to the shielding layer of the cable, and then the core wire of the cable extends into the welding hole 234 on the second inner conductor 23, the rear cover 42 and the rear insulator 41 are opened, the core wire is welded to the second inner conductor 23, and then the rear insulator 41 and the rear cover 42 are installed.

[0068] The L-shaped second housing allows the connector to be used in environments where the spacing between mounting plates is low, avoiding interference with the tail cables.

[0069] The split groove elastic hole 111 is used to be plugged with a standard interface SMP-J type pin to form an internal contact surface connection.

[0070] In the floating cable connector, the first inner conductor 13 and the second inner conductor 23 are always conductively plugged together and axially slidably matched. After the slotted elastic hole 111 at the rear end of the first shell 11 is inserted into the inner hole of the second shell 21, it is always in a meshing state to maintain conductive connection.

[0071] The floating cable connector of the utility model is fixed on a movable mounting plate by flange positioning and screw connection, and is plugged into a corresponding mounting plate on which an SMP-J type connector is fixedly installed, so as to provide a radial floating effect of ±0.1mm and an axial floating effect of ±0.4mm, meet the plug-in requirements of multi-channel connectors, and ensure high-quality and high-reliability radio frequency signal transmission.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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 floating cable connector, characterized in that it includes The contact component at the front end, the welding component at the rear end, and the connecting component in the middle; The contact assembly comprises a first housing, a first insulator and a first inner conductor, wherein the first inner conductor is fixed in the first housing via the first insulator; The welding assembly comprises a second outer shell, a second insulator and a second inner conductor, wherein the second inner conductor is fixed in the second outer shell via the second insulator; The first inner conductor and the rear end of the first outer shell respectively form an axial sliding plug-in fit with the second inner conductor and the front end of the second outer shell; The rear end of the connecting component is fixedly connected to the front end of the second shell, the front end of the connecting component forms an axial elastic fit with the first shell, and the contact component moves axially elastically at the front end of the welding component through the connecting component.

2. The floating cable connector according to claim 1, characterized in that: The connecting assembly comprises a connecting tube, a spring and an elastic collar; The second outer shell is sleeved at the rear end of the connecting tube to form a fixed connection, an inner limiting ring is formed at the front end of the connecting tube, the rear end of the first outer shell is inserted into the connecting tube, and the inner limiting ring is suitable for limiting the axial movement of the first outer shell out of the connecting tube; The elastic clamp ring is arranged in the connecting tube, and the front and rear ends of the spring are respectively in contact with the first shell and the elastic clamp ring to axially tighten the first shell and the inner limit ring.

3. The floating cable connector according to claim 2, characterized in that: A radial floating gap is provided between the connecting tube and the first housing; A split-groove elastic hole is formed at the contact portion at the rear end of the first shell, so that when the first shell floats radially, its contact portion is always in a meshing contact state with the first shell.

4. The floating cable connector according to claim 1, characterized in that: The first inner conductor is provided with a plug hole, a barb ring, a limit ring and a plug pin in sequence from front to back; The second inner conductor is provided with a plug hole, a barb ring, a positioning surface and a welding hole in sequence from front to back.

5. The floating cable connector according to claim 2, characterized in that: The front and rear ends of the first shell are both provided with split slot elastic holes, and the first shell is provided with an outer limiting ring, which is suitable for axially abutting with the inner limiting ring.

6. The floating cable connector according to claim 1, characterized in that: The second shell is in an L-shaped structure, comprising a transverse shell and a vertical shell. An operation hole is provided at the rear end of the transverse shell, and a rear insulator and a rear cover plate are arranged in the operation hole.

7. The floating cable connector according to claim 2, characterized in that: A flange is arranged on the connecting tube.

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