High-power self-locking radio frequency coaxial connector

Abstract

The utility model relates to a high-power self-locking radio frequency coaxial connector, which comprises a male end connector provided with a circle of annular outer teeth. The female end connector comprises a female end body and a sleeve, annular inner teeth are arranged on one side in the sleeve, a guide lock block is arranged on the other side in the sleeve, an L-shaped guide lock groove is formed in the female end body, the sleeve is connected to the female end body in a sleeving mode, the guide lock block is located in the guide lock groove, and the sleeve is connected to the female end body in a sleeving mode and does axial elastic movement. And finally, the annular inner teeth enter the annular outer teeth, and the inner teeth and the outer teeth are meshed, so that the male end connector is self-locked. Through the structural design of the connector, the product is constructed to resist a breakdown phenomenon at a high place, especially under a low air pressure condition, so that the power resistance of the product is greatly improved; and meanwhile, a self-locking structure is used, so that the product can be screwed to prevent loosening during use, and the reliability of the product is improved.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a high-power self-locking radio frequency coaxial connector. Background Technology

[0002] Radio frequency coaxial connectors are typically components that are attached to cables or mounted on instruments to achieve electrical connection or disconnection of transmission lines. In microwave transmission, they serve as a link between transmission lines, microstrip circuits, and printed circuit boards. They have advantages such as wide operating bandwidth and convenient connection, and are therefore widely used in aerospace systems, microwave communication engineering, and military weaponry.

[0003] With the continuous advancement of military and communication equipment, the requirements for power and connection reliability are becoming increasingly stringent in special environments. Air gaps may appear at the end face of traditional RF connectors, which may lead to arcing when the power is too high. At the same time, traditional threaded RF connectors rely on the preload of the threads to prevent the threads from loosening. However, with the development of military technology, the tightness requirements for threaded connectors are becoming increasingly stringent, and there is a trend towards integrated and densely packed installations.

[0004] In summary, traditional threaded connectors still have drawbacks and shortcomings in terms of fastening reliability and installation in small spaces, such as the risk of thread loosening, inability to be tightly packed, and ease of disassembly and assembly. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-power self-locking radio frequency coaxial connector, which solves the technical problems of loose threads, inability to be closely spaced, and inconvenient disassembly and assembly in the previous radio frequency coaxial connectors during fastening reliability and installation and use in small spaces.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A high-power self-locking RF coaxial connector is provided, including...

[0008] A male connector, wherein the male connector is provided with a ring of external teeth;

[0009] A female connector, comprising a female body and a sleeve, wherein an annular internal tooth is provided on one side of the sleeve and a guide locking block is provided on the other side, and an L-shaped guide locking groove is provided on the female body, the sleeve is sleeved on the female body and the guide locking block is located in the guide locking groove, and the sleeve sleeved on the female body can perform axial elastic movement.

[0010] When the male connector and the female connector are mated, the female body is rotated, the guide locking block is unlocked from the guide locking groove, the sleeve is outwardly ejected and axially moved, and finally the annular inner teeth enter the annular outer teeth, so that the male connector and the female connector are self-locked.

[0011] Further, the female body comprises a female shell, a pin, a first insulator, a second insulator, a compression ring, a bushing, a nut and a sleeve;

[0012] The pin is arranged in the female shell through the first insulator, and the pin is connected with the cable core wire;

[0013] The second insulator is mounted on the cable insulation layer, and the front end of the second insulator abuts against the first insulator and the pin;

[0014] The compression ring is arranged outside the second insulator, and the front end of the compression ring abuts against the first insulator;

[0015] The bushing is welded on the cable shielding layer, and the front end of the bushing abuts against the second insulator and the compression ring;

[0016] The nut is connected to the rear end of the female shell, and the front end of the nut abuts against the bushing;

[0017] The sleeve is sleeved outside the female shell through the snap ring, and the sleeve is sleeved outside the sleeve.

[0018] Further, a spring is arranged in the sleeve, the front end of the spring abuts against the sleeve, and the rear end of the spring abuts against the sleeve.

[0019] Further, the male connector comprises a plug, a third insulator and a male shell, and the plug is arranged in the male shell through the third insulator.

[0020] Further, an inner tapered hole is formed in the first insulator, and an outer tapered surface is arranged on the third insulator, and the outer tapered surface is matched with the inner tapered hole;

[0021] When the male connector and the female connector are assembled, the outer tapered surface and the inner tapered hole are in sealing cooperation.

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

[0023] Through the structural design of the connector, the product is constructed for resisting breakdown phenomenon under high place, especially under low pressure condition, and the power resistance of the product is greatly improved; meanwhile, the self-locking structure is used, so that the product can be tightened and prevented from loosening when being used, and the reliability of the product is improved.

[0024] The female connector is matched with the male connector through the annular inner teeth and the annular outer teeth of the male connector, without the safety hole structure, and through the design of the sleeve and the matched screw sleeve, the screw sleeve locking and unlocking functions can be quickly realized during the plugging process, thereby the screw sleeve rotation prevention and thread anti-loosening functions are realized, the fastening reliability of the product is improved, the installation and dismounting speed of the product is greatly improved, the work efficiency is improved, and the product is very convenient to use.

[0025] The cable and the connector are combined with an insulating medium wrapping structure to ensure that the inner and outer conductors are isolated from air.

[0026] The interface air section is combined by the taper surfaces of the first and third insulators to prevent the interface end from being in pure air medium and ensure that the connector normally works in a high-power environment. BRIEF DESCRIPTION OF DRAWINGS

[0027] The utility model will be further described below in combination with the drawings.

[0028] Figure 1 is female connector schematic diagram;

[0029] Figure 2 is male connector schematic diagram;

[0030] Figure 3 is high-power self-locking radio frequency coaxial connector schematic diagram of the utility model;

[0031] Among them, 1, male connector, 11, jack piece, 12, third insulator, 13, male outer shell, 14, annular outer tooth;

[0032] 2, female connector, 21, female outer shell, 22, pin piece, 23, first insulator, 24, second insulator, 25, compression ring, 26, bushing, 27, nut, 28, screw sleeve, 29, snap ring;

[0033] 3, sleeve, 31, annular inner tooth, 32, spring;

[0034] 4, lock groove. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0036] The application provides a high-power self-locking radio frequency coaxial connector, which is described in detail below. It should be noted that the description order of the following embodiments is not limited as the preferred order of the embodiments of the application. In the following embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0037] To solve the technical problems of thread loosening, inability to be densely arranged, and inability to be conveniently disassembled of the radio frequency coaxial connector in the prior art during the process of fastening reliability and small space installation and use, an embodiment of the application provides a high-power self-locking radio frequency coaxial connector. The following is described in detail.

[0038] As shown in Figures 1 to 3 , a high-power self-locking radio frequency coaxial connector includes

[0039] a male connector 1, which is provided with a ring-shaped outer tooth 14;

[0040] a female connector 2, which includes a female body and a sleeve 3, the sleeve 3 is provided with a ring-shaped inner tooth 31 on one side and a guide locking block on the other side, the female body is provided with an L-shaped guide locking groove 4, the sleeve 3 is sleeved on the female body, and the guide locking block is located in the guide locking groove 4, and the sleeve 3 is axially elastically movable on the female body;

[0041] When the male connector 1 and the female connector 2 are formed in a plug-in manner, the female body is rotated, the guide locking block is unlocked from the guide locking groove 4, the sleeve 3 is axially moved outward, and finally the ring-shaped inner tooth 31 enters the ring-shaped outer tooth 14, so that the inner and outer teeth are engaged to form self-locking of the male connector 1.

[0042] Specifically, as an optional implementation manner in the embodiment, as shown in Figure 1 , the female body includes a female shell 21, a pin piece 22, a first insulator 23, a second insulator 24, a compression ring 25, a bushing 26, a nut 27, and a sleeve 28;

[0043] The pin piece 22 is arranged in the female shell 21 through the first insulator 23, and the pin piece 22 is connected with a cable core wire;

[0044] The second insulator 24 is installed on a cable insulation layer, and the front end of the second insulator 24 abuts against the first insulator 23 and the pin piece 22;

[0045] The compression ring 25 is arranged outside the second insulator 24, and the front end of the compression ring 25 abuts against the first insulator 23;

[0046] The bushing 26 is welded on a cable shielding layer, and the front end of the bushing 26 abuts against the second insulator 24 and the compression ring 25;

[0047] The nut 27 is connected at the rear end of the female end shell 21, and the front end abuts against the bushing 26.

[0048] The screw sleeve 28 is sleeved outside the female end shell 21 through the snap ring 29, and the sleeve 3 is sleeved outside the screw sleeve 28.

[0049] Generally, the cable is used in a high-power environment, and the insulation layer will shrink, resulting in a pure air medium between the inner and outer conductors. The insulator wraps the insulation layer, thereby avoiding the sparking phenomenon of the inner and outer conductors.

[0050] In this embodiment, the insulator is made of a high-temperature-resistant insulating material and is used to isolate the inner and outer conductors. It is assembled on the cable insulation medium and is used to isolate the pin and the shell. In a high-power use environment, the power requirement is increased.

[0051] Specifically, as an optional implementation manner in this embodiment, as shown in Figure 1 The sleeve 3 is provided with a spring 32, the front end of the spring 32 abuts against the sleeve 3, and the rear end of the spring 32 abuts against the screw sleeve 28.

[0052] Specifically, as an optional implementation manner in this embodiment, as shown in Figure 2 The male end connector 1 includes a jack 11, a third insulator 12, and a male end shell 13. The jack 11 is arranged in the male end shell 13 through the third insulator 12.

[0053] Specifically, as an optional implementation manner in this embodiment, as shown in Figures 1 to 3 The first insulator 23 is provided with an inner tapered hole, the third insulator 12 is provided with an outer tapered surface, and the outer tapered surface is matched with the inner tapered hole. When the male end connector 1 and the female end connector 2 are assembled, the outer tapered surface and the inner tapered hole form a sealing fit. The interface end is completely covered by the medium, and there is no air medium, which ensures that it meets the high-power use requirement.

[0054] The assembly process of the female end connector 2 is as follows: the first insulator 23 is pressed into the female end shell 21, the bushing 7 is welded and fixed on the cable, the second insulator 24 is arranged on the cable insulation layer, the pin 22 is welded on the cable core wire, the compression ring 25 is arranged in the female end shell 21, the first sealing ring and the third sealing ring are arranged on the female end shell 21, the second sealing ring is arranged on the nut 27, the snap ring 29 and the spring 32 are arranged on the female end shell 21, and finally the sleeve 3 is arranged.

[0055] The utility model discloses a high -power self -locking radio frequency coaxial connector, and the female end connector 2 is matched with the ring outer tooth 14 of the male end connector 1 through the ring inner tooth 31, and the male and female heads are matched, do not need safety hole structure, through the design of sleeve 3 and the screw sleeve 28 matched with it, can realize the function that screw sleeve 28 locks and unlocks in the process of inserting fast, thereby play screw sleeve 28 anti -rotation, thread anti -loosening's function, improve the fastening reliability of product, greatly improve the installation, dismounting speed of product, improve work efficiency, use very convenient.

[0056] The connector and the cable connection meet the requirement of high power, and the insulation medium completely wraps the structure, ensures that the inner and outer conductors are free of pure air medium, solves the problem that air medium is easy to ionize and affects the power capacity of the product, and the product is prone to sparking in a high-power environment, thereby improving the safety of the product.

[0057] The various devices (components without specific structure) selected in the application are general standard components or components known to those skilled in the art, and their structure and principle can be known by technical personnel through a technical manual or through conventional experimental methods.

[0058] In the description of the embodiments of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, and can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0059] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0060] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. The described device embodiments are merely schematic, for example, the division of the units is only a logical function division, and there can be another division manner in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between the units can be indirect couplings or communication connections through some interfaces, devices or units, and can be electrical, mechanical or in other forms.

[0061] The units described as separated components can or can not be physically separated, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments.

[0062] In addition, each functional unit in the various embodiments of the present application can be integrated into one processing unit, or each unit can exist physically, or two or more units can be integrated into one unit.

[0063] With the above ideal embodiments according to the present application as the inspiration, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents in the specification, and must be determined according to the scope of claims.

Claims

1. A high power self-locking RF coaxial connector, characterized in that, Comprising A male connector (1) is provided with a ring of annular external teeth (14); A female connector (2) includes a female body and a sleeve (3), the sleeve (3) is provided with annular internal teeth (31) on one side and a guide locking block on the other side, the female body is provided with an L-shaped guide locking groove (4), the sleeve (3) is sleeved on the female body, and the guide locking block is located in the guide locking groove (4), the sleeve (3) is axially elastically movable on the female body; When the male connector (1) and the female connector (2) are inserted, the female body is rotated, the guide locking block is unlocked from the guide locking groove (4), the sleeve (3) is axially moved outward, and finally the annular internal teeth (31) enter the annular external teeth (14), the internal and external teeth are engaged to form a self-locking male connector (1).

2. The large-power self-locking RF coaxial connector according to claim 1, characterized in that The female body includes a female shell (21), a pin (22), a first insulator (23), a second insulator (24), a compression ring (25), a bushing (26), a nut (27), and a sleeve (28); The pin (22) is arranged in the female shell (21) through the first insulator (23), and the pin (22) is connected with a cable core wire; The second insulator (24) is installed on a cable insulation layer, and the front end of the second insulator (24) abuts against the first insulator (23) and the pin (22); The compression ring (25) is arranged outside the second insulator (24), and the front end of the compression ring (25) abuts against the first insulator (23); The bushing (26) is welded on a cable shielding layer, and the front end of the bushing (26) abuts against the second insulator (24) and the compression ring (25); The nut (27) is connected to the rear end of the female shell (21), and the front end of the nut (27) abuts against the bushing (26); The sleeve (28) is sleeved outside the female shell (21) through a snap ring (29), and the sleeve (3) is sleeved outside the sleeve (28).

3. The large-power self-locking RF coaxial connector according to claim 2, characterized in that A spring (32) is arranged in the sleeve (3), the front end of the spring (32) abuts against the sleeve (3), and the rear end of the spring (32) abuts against the sleeve (28).

4. The large-power self-locking RF coaxial connector according to claim 2, characterized in that The male connector (1) includes a socket (11), a third insulator (12), and a male shell (13), and the socket (11) is arranged in the male shell (13) through the third insulator (12).

5. The large-power self-locking RF coaxial connector according to claim 4, characterized in that An inner tapered hole is formed in the first insulator (23), and an outer tapered surface is arranged on the third insulator (12), and the outer tapered surface is matched with the inner tapered hole; When the male connector (1) and the female connector (2) are assembled, a sealing fit is formed between the outer tapered surface and the inner tapered hole.

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