CN206878209U - A low intermodulation radio frequency coaxial connector - Google Patents

Abstract

The utility model discloses a kind of low intermodulation radio frequency (RF) coaxial connector, it includes corrugated external conductor RF coaxial feeder line, feeder clip fitting, procapsid component, attaching nut, back casing component, and the cable clip fitting is fixed on outside corrugated external conductor RF coaxial feeder line sheath；The procapsid component includes contact A, procapsid, insulator A, O-shaped rubber ring, convex support；The convex support is located at contact A inner wall at end, to support section therewith inside fixed feeder line outer conductor and procapsid；The attaching nut is located at outside procapsid；The back casing component includes contact B, central contact, insulator B, back casing.Feeder line inner wire of the present utility model is directly realized by central contact and connected, and has been reduced the number of jack pin, has been reduced connector materials, simplified connector internal structure, has had good economic benefit.

Description

A low intermodulation radio frequency coaxial connector

technical field

The utility model relates to the technical field of communication, in particular to a low intermodulation radio frequency coaxial connector.

Background technique

The radio frequency feeder is a cable that transmits electromagnetic energy in the radio frequency range, and consists of an inner conductor, an outer conductor, an insulator and a protective sheath. According to different structures, RF feeders can be divided into RF coaxial feeders, symmetrical RF feeders and spiral RF feeders.

Wherein, the radio frequency coaxial feeder refers to a feeder in which the inner conductor of the radio frequency feeder, the outer conductor of the radio frequency feeder and the insulator of the radio frequency feeder share the same axis. RF coaxial feeders are widely used in wireless communication and broadcasting, television, radar, navigation, computer and instrumentation, etc., and are indispensable components in various radio communication systems and electronic equipment.

Radio frequency coaxial connectors (hereinafter referred to as RF connectors) are generally considered to be a component attached to a feeder or installed on an instrument. As a component for electrical connection or separation of a transmission line, it belongs to an electromechanical integration product. The processing of parts is mainly done by turning machine, and there are many manual operations for assembly, so it is difficult to carry out automatic assembly, and the product replacement is slow; the radio frequency coaxial connector is an important part of the electrical connector, which is a labor-intensive product with a certain technical content, and the product is reliable The failure modes and mechanisms are complex.

After long-term development in my country, RF coaxial connectors have already had a large scale in the industry, but they are also facing a situation of overcapacity, and the market competition is very fierce. In addition to product innovation, most companies have to deal with the issue of materials. Ensure certain economic benefits. Therefore, on the basis of ensuring the performance of the connector, structural innovation and transformation to ensure the simplification of materials is an effective way to create greater economic benefits.

Utility model content

The purpose of this utility model is to provide a low intermodulation radio frequency coaxial connector, which is used to solve the problems existing in the above-mentioned existing connectors.

In order to achieve the above object, the utility model adopts the following technical solutions:

A low intermodulation radio frequency coaxial connector, which includes a radio frequency coaxial feeder, a feeder clip, a front housing assembly, a connecting nut and a rear housing assembly, the radio frequency coaxial feeder is a corrugated tube outer conductor radio frequency coaxial The feeder line includes the inner conductor of the feeder line, the insulation layer of the feeder line, the outer conductor of the feeder line and the sheath from the inside to the outside. One end of the front housing assembly is connected, the other end of the front housing assembly is connected to the connecting nut, the radio frequency coaxial feeder extends into the inside of the front housing assembly, and the rear housing assembly includes a central contact, The contact piece B, the insulator B and the rear shell, the central contact piece is located in the center of the rear shell, and is used to tightly connect the inner conductor of the feeder through the inner ring, and the inner conductor of the feeder located inside the front shell assembly does not need to be welded The socket pin is directly connected with the rear shell assembly part through the central contact piece; the contact piece B is located outside the central contact piece, and its front end outer side is closely connected with the inner wall of the front shell, and the rear shell is connected with the outer wall thread Screw on the nut.

The front housing assembly includes a contact piece A, a front housing, an insulator A, an O-shaped rubber ring, and a convex support. The front and rear ends of the contact piece A are provided with threads, and the front end of the contact piece A is connected to the feeder clamping piece through the threads. It is fixedly connected, and its rear end is fixedly connected to the front housing through threads; the insulator A is located between the inner conductor of the feeder and the front housing; the convex support is located on the inner wall of the end of the contact piece A to fix the outer conductor of the feeder and the front housing. The interior of the housing and its supporting part.

The front housing is screwed to the outer side of the end of the contact piece A through the internal thread of the front end, and a limit step is arranged on the inside and outside of the front housing, wherein one side of the inner limit step protrudes toward the outer conductor of the feeder line, and the extension The outgoing part is in contact with the outer conductor of the feeder.

The convex support is in contact with the protruding part of one side of the limit step inside the front housing to support the protruding part, so as to ensure the tight connection between the outer conductor of the feeder and the protruding part of the front housing.

The insulator A is arranged on the inner limit step of the front housing to ensure the position of the insulator A and the tight connection between the insulator A and the contact piece B.

The connecting nut is sleeved outside the front housing, and a limiting step is provided inside one side of the connecting nut, and the limiting step fits with the limiting step outside the front housing to limit the position of the connecting nut.

The O-shaped rubber ring is located at the threaded connection, and each threaded part is provided with a waterproof O-shaped rubber ring.

The beneficial effects of the utility model are: compared with the traditional radio frequency coaxial connector, the utility model is not provided with a jack pin at the end of the inner conductor of the feeder part of the plug, and is directly connected to the socket through the central contact body. This makes the plug part, that is, the front housing assembly part, save the space required for placing the jack pins, so that the material of the entire connector is greatly reduced. At the same time, it makes the internal structure of the entire connector relatively simple, greatly reduces the manufacturing time and material costs, and greatly reduces the production cost. Improve production efficiency and have good economic benefits.

Description of drawings

Fig. 1 is a schematic structural diagram of a low intermodulation radio frequency coaxial connector provided by an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a plug portion of a low intermodulation radio frequency coaxial connector provided by an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a radio frequency coaxial feeder connected by a radio frequency coaxial connector provided by an embodiment of the present invention.

Fig. 4 is a structural schematic diagram of a radio frequency coaxial connector provided by an embodiment of the present invention after the plug and socket are combined.

In the figure: 1 is the RF coaxial feeder, 2 is the feeder clamp, 3 is the front shell assembly, 4 is the connecting nut, 5 is the rear shell assembly, 6 is the center contact, 7 is the contact B, 8 is Insulator B, 9 is the rear shell, 10 is the front shell, 11 is the insulator A, 12 is the O-shaped rubber ring, 13 is the convex support, 14 is the screw thread, 15 is the contact piece A, 16 is the outer conductor of the feeder line, 17 is the sheath, 18 is the feeder insulation layer, and 19 is the inner conductor of the feeder.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, and do not represent all of them. Example.

According to Figures 1-4, in order to achieve the purpose of the utility model, the embodiment of the utility model provides a low intermodulation radio frequency coaxial connector, including a radio frequency coaxial feeder 1, a feeder clip 2, and a front housing assembly 3 , connection nut 4, rear housing assembly 5, center contact 6, contact B7, insulator B8, rear housing 9, front housing 10, insulator A11, O-shaped rubber ring 12, convex support 13, thread 14, Contact piece A15, feeder outer conductor 16, sheath 17, feeder insulation layer 18, feeder inner conductor 19; the feeder clamp 2 is fixed outside the sheath 17 of the corrugated outer conductor radio frequency coaxial feeder, and the feeder clamp 2 It is threaded inside and fixed on the front end of the contact piece A15. The front housing assembly 3 includes a contact piece A15, a front housing 10, an insulator A11, an O-shaped rubber ring 12, and a convex support 13; the front end of the contact piece A15 is provided with threads for fixed connection with the feeder clamping piece 2 , the rear end of the contact piece A15 is also provided with threads for threaded connection with the front housing 10; the insulator A11 is located between the inner conductor 19 of the feeder and the front housing 10; the O-shaped rubber ring 12 is located between the threaded connection There are 4 parts in total; the convex support 13 is located on the inner wall of the end of the contact piece A11, and is used to fix the outer conductor 16 of the feeder and the supporting part inside the front housing 10; Connected to the outer side of the end of the contact piece A15, its inner protruding part is in contact with the outer conductor 16 of the feeder line, and both inside and outside are provided with limiting steps; the connecting nut 4 is located outside the front housing 10; the rear housing assembly 5 includes a contact piece B7, central contact piece 6, insulator B8, rear housing 9; the central contact piece 6 is located at the center of the rear housing 9, and is used to tightly connect the inner conductor 19 of the feeder through an embedded ring; the contact piece B7 is located at the central contact 6, the outside of the front end is closely connected with the inner wall of the front shell; the rear shell 9 is screwed with the connecting nut 4 through the thread of the outer wall.

The part of the front housing assembly 3 in the RF coaxial connector, that is, the inner conductor of the feeder in the plug does not need to weld the jack pin, and is directly connected to the rear housing 9 through the center contact 6, that is, the socket part remains unblocked.

The convex support 13 is located on the inner wall of the end of the contact piece A15, and is used to support the outer conductor 16 of the feeder and the protruding part on the side of the inner limit step of the front housing 10, so as to ensure the tight connection of the outer conductor 16 of the feeder.

There is a special protruding part on one side of the internal limit step of the front housing 10 to ensure the connection of the outer conductor of the feeder; the internal limit step is used to ensure the position of the insulator A11 and ensure the tightness with the contact B8. connected. A limiting step is also provided outside the front housing 10 to limit the position of the connecting nut 4 .

The connecting nut 4 is located outside the front housing 10 , and the inside of the connecting nut is provided with a limiting step, which fits with the outer limiting step of the front housing; the inner wall of the connecting nut is also provided with threads for connecting the rear housing 9 .

The parts that need to be screwed are provided with waterproof O-shaped rubber rings 12 .

The working principle of the utility model is: when the radio frequency coaxial connector is used as a transmission line to electrically connect or separate components to connect circuits or equipment, the inner conductor of the feeder part of the plug directly communicates with the socket through the central contact body, and at the same time contacts Part B is connected to the front housing by means of plugging, so far, the outer conductor of the feeder part of the plug part is connected through the contact part A, the protruding part inside the front case and the contact part B respectively. Subsequently, adjust the position of the connecting nut to the limit step, and connect the internal thread of the connecting nut with the external thread of the rear housing. The whole connection is simple, effective, firm, easy to install and disassemble, and has good waterproof performance.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (7)

1. A low intermodulation radio frequency coaxial connector, characterized in that it includes a radio frequency coaxial feeder (1), a feeder clamp (2), a front housing assembly (3), a connecting nut (4) and a rear housing component (5), the radio frequency coaxial feeder (1) is a corrugated tube outer conductor radio frequency coaxial feeder, which sequentially includes the inner conductor of the feeder (19), the insulation layer of the feeder (18), the outer conductor of the feeder (16 ) and the sheath (17), the feeder clamp (2) is fixed outside the sheath (17) of the RF coaxial feeder (1), and the feeder clamp (2) is also connected to the One end of the front shell assembly (3) is connected, the other end of the front shell assembly (3) is connected with the connecting nut (4), and the RF coaxial feeder (1) extends into the front shell assembly (3) Inside, the rear housing assembly (5) includes a central contact (6), a contact B (7), an insulator B (8) and a rear housing (9), and the central contact (6) is located at the rear The center part of the housing (9), and is used to tightly connect the inner conductor (19) of the feeder through the inner ring. The inner conductor (19) of the feeder located inside the front housing assembly (3) does not need to weld the socket pin and directly passes through the The central contact piece (6) is kept in communication with the rear shell assembly part (5); the contact piece B (7) is located outside the central contact piece (6), and its front outer side is closely connected with the inner wall of the front shell, and the rear shell The body (9) is screwed to the connecting nut (4) through the outer wall thread. 2. A low intermodulation radio frequency coaxial connector according to claim 1, characterized in that the front housing assembly (3) includes a contact piece A (15), a front housing (10), an insulator A ( 11), O-shaped rubber ring (12) and convex support (13), the front and rear ends of the contact piece A (15) are provided with threads (14), and its front end is connected with the feeder clamping piece through the thread (14) (2) Fixed connection, the rear end of which is fixedly connected to the front housing (10) through threads (14); the insulator A (11) is located between the feeder inner conductor (19) and the front housing (10); the The convex support (13) is located on the inner wall of the end of the contact piece A (15), and is used to fix the feeder outer conductor (16) and the supporting part inside the front housing. 3. A low intermodulation radio frequency coaxial connector according to claim 2, characterized in that the front shell (10) is screwed to the outside of the end of the contact A (15) through the internal thread of the front end, and the front shell Limiting steps are arranged inside and outside the body (10), wherein one side of the inner limiting step protrudes toward the outer conductor of the feeder line, and the protruding part is in contact with the outer conductor (16) of the feeder line. 4. A low intermodulation radio frequency coaxial connector according to claim 3, characterized in that the convex support (13) is in contact with the protruding part of one side of the internal limit step of the front housing (10) , to support the protruding part, so as to ensure that the feeder outer conductor (16) is closely connected with the protruding part of the front housing. 5. A low intermodulation radio frequency coaxial connector according to claim 3, characterized in that the insulator A (11) is set on the inner limit step of the front housing (10) to ensure that the insulator A (11) and ensure that insulator A (11) is closely connected with contact B (7). 6. A low intermodulation radio frequency coaxial connector according to claim 3, characterized in that the connection nut (4) is sleeved outside the front housing (10), on one side of the connection nut (4) A limit step is provided inside, and the limit step fits with the limit step outside the front housing to limit the position of the connecting nut (4). 7. A low intermodulation radio frequency coaxial connector according to claim 2, characterized in that the O-shaped rubber ring (12) is located at the threaded connection, and each threaded part is provided with a waterproof O-shaped Rubber ring (12).