WO2011127864A2

WO2011127864A2 - Radio frequency connector

Info

Publication number: WO2011127864A2
Application number: PCT/CN2011/074584
Authority: WO
Inventors: 罗英涛; 肖伟宏
Original assignee: 华为技术有限公司
Priority date: 2011-05-24
Filing date: 2011-05-24
Publication date: 2011-10-20
Also published as: CN102204016B; CN102204016A; WO2011127864A3

Abstract

A radio frequency connector comprises an insulating main-body (1). A cavity (7) for accommodating the inner conductor (9) of a cable (10) is arranged inside the insulating main-body. The outside wall of the insulating main-body is wrapped with an external conductive layer (2) which can transmit signals. The external conductive layer is conductively connected with the external conductor (8) of the cable. The insulating main-body also has a through-hole (4) used for the cable to pass through. The radio frequency connector is easy to manufacture and install and has high production efficiency. The radio frequency connector is composed of one structure so that it is not easy to fall off and has high reliability.

Description

RF connector technology field

The present invention relates to the field of radio frequency, and in particular to a radio frequency connector.

Background technique

The RF connector (commonly known as the junction box) is a component that is electrically connected to the transmission line and is typically used for the connection of coaxial cables. The existing RF connector includes four components of the split connection, and includes an inner conductor junction box, an inner and outer conductor insulating dielectric member, an outer conductor junction box, and a protective cover from the inside to the outside, and complicated fitting between the components. Structural connection.

In the process of implementing the present invention, the inventors have found that the prior art has at least the following problems:

The current junction box consists of four components, a large number of components, and each component is connected by a complex fitting structure.

As a result, each component has a complicated structure, and each component has the disadvantages of increased processing difficulty and high processing cost, and the four components are difficult to assemble, resulting in low production efficiency.

Summary of the invention

In order to overcome the above drawbacks of the prior art, an embodiment of the present invention provides a radio frequency connector. The technical solution is as follows:

An RF connector, the RF connector includes an insulative housing, the inside of the insulative housing is provided with a cavity, the cavity is for receiving an inner conductor of the connected cable, and an outer wall of the insulative housing is covered An outer conductive layer for signal transmission, the outer conductive layer is for communicating with an outer conductor of the connected cable, and the insulating body is provided with a through hole for allowing the connected cable to pass through.

The technical solution provided by the embodiment of the present invention has the beneficial effects that: according to the prior art, the junction box is composed of four components, and the embodiment of the present invention can provide signal transmission along the outer wall of the insulating body through an insulating body. The outer conductive layer and the simple structure of the through holes realize the connection of the cable, so the embodiment of the invention has the advantages of easy processing, low processing cost, small assembly difficulty, and high production efficiency. In addition, the embodiment of the present invention is composed of a structural member and is not easy to fall off, and has the advantages of high reliability.

DRAWINGS

1 is a connection state diagram of a radio frequency connector and a cable according to an embodiment of the present invention;

2 is a perspective view of a radio frequency connector according to an embodiment of the present invention;

Figure 3 is a plan view of Figure 2;

Figure 4 is a bottom view of Figure 2; Figure 5 is a cross-sectional view taken along line AA of Figure 2;

Figure 6 is an enlarged view of B in Figure 5;

7 is a perspective view of a radio frequency connector according to another embodiment of the present invention;

Figure 8 is an enlarged view of the C-C of Figure 7;

9 is a connection state diagram of a radio frequency connector and a cable according to another embodiment of the present invention shown in FIG. 7;

9a is a connection state diagram of a radio frequency connector and a cable according to still another embodiment of the present invention;

Figure 10 is a cross-sectional view showing a radio frequency connector according to still another embodiment of the present invention;

Figure 11 is a diagram showing the connection state of the RF connector and the cable according to still another embodiment of the present invention shown in Figure 10.

In the figure: 1 Insulating body, 2 outer conductive layer, 3 inner conductive layer, 4 through holes, 4a outer hole, 4b inner hole, 5 insulating part, 6 metal layer, 7 cavity, 8 outer conductor, 8a outer conductor insulating layer , 8b outer conductor layer, 9 inner conductor, 9a inner conductor insulation layer,

9b inner conductor layer, 10 is connected to the cable.

detailed description

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

The cable to be connected in this embodiment is exemplified by a coaxial cable, but is not limited thereto. The cable to be connected in this embodiment can be applied to the connection of all cables including an inner conductor and an outer conductor. The connected cable structure is as shown in Fig. 1, wherein the inner conductor 9 includes an inner conductor insulating layer 9a and an inner conductor layer 9b, and the outer conductor 8 includes an outer conductor insulating layer 8a and an outer conductor layer 8b.

As shown in FIG. 1 , an RF connector according to an embodiment of the present invention can also be seen in FIG. 3 , FIG. 4 and FIG. 5 . This embodiment is mainly described with reference to FIG. 1 , and the RF connector includes an insulative body. 1. The inside of the insulative housing 1 is provided with a cavity 7 for accommodating the inner conductor 9 of the cable 10 to be connected. The outer wall of the insulative housing 1 is covered with an outer conductive layer 2 for signal transmission, and the outer conductive layer 2 The outer conductor 8 for connecting the connected cable 10 is provided with a through hole 4 (shown in FIG. 2) for passing through the connected cable 10.

In the embodiment of the present invention, an external conductive layer capable of signal transmission is disposed along the outer wall of the insulating body, and a simple structure of the through hole is realized, thereby realizing the connection of the cable, so that the embodiment of the invention has the advantages of easy processing and low processing cost. , the assembly difficulty is small, and the production efficiency is high. In addition, the embodiment of the present invention is composed of one structural member and is not easy to fall off, and has the advantages of high reliability.

As shown in FIG. 2, the insulating body 1 is a box-shaped body. Of course, those skilled in the art can understand that the insulative housing 1 can also be a sleeve body, such as a sleeve or the like, and is not limited to a box-shaped body. In this example, the insulative housing 1 is a rectangular box body, so that the structure is simple and easy to process. Of course, it will be known to those skilled in the art that the insulative housing 1 can be a box-shaped body or a sleeve of any shape, such as a circular box or a circular sleeve, an elliptical box or an elliptical sleeve, while satisfying the wiring function. Positive Square box or square sleeve, diamond box or diamond sleeve, etc. Among them, the insulating body 1 has many materials, including PPS (Polyphenylene sulfide, polyphenylene sulfide), PEI (Polyetherimide, polyetherimide), ABS (Acrylonitri le Butadiene Styrene, acrylonitrile-styrene-butadiene copolymer). ), PPE (polyphenylene ether), PA (polyamide), POM (polyoxymethylene, acetal resin), PS (polystyrene), TPE (thermoplastic elastomer, rubber), PBT (polybutylece terephthalate, polypair) Butylene phthalate), LCP (liquid crystal polymer), SAN (Styrene Acrylonitri le, styrene acrylonitrile), PVC (polyvinyl chloride), CP (polycarbonate), PE (polyethylene), PP ( Polypropylene), PMMA (polymethyl methacrylate), PC (Polycarbonate, polycarbonate), PS0, PES (polyether sulfone), PVDF (vinylidene fluoride) and the like.

Specifically, as shown in FIG. 3, FIG. 4 and FIG. 5, the radio frequency connector according to an embodiment of the present invention is shown in FIG. 2, and the embodiment is mainly illustrated in FIG. 2, in this example, The conductive layer 2 is closed along the outer wall of the insulative housing 1. In this example, the outer conductive layer 2 is integrally disposed along the height direction of the outer wall of the insulating body 1, and is integrally covered and closed along the peripheral edge of the outer wall of the insulating body 1, so that it has an advantage of being easy to process. Of course, as is known to those skilled in the art, referring to FIG. 1, the outer conductive layer 2 may be partially covered along the height direction of the outer wall of the insulating body 1 under the condition that the outer conductor 8 of the cable 10 is turned on. And close the setting.

Alternatively, the outer conductive layer 2 is approximately closed along the outer wall of the insulative body 4 under the condition that the outer conductor 8 of the cable 10 is turned on. Referring to Fig. 7, the approximate closed arrangement is at the four ridges of the outer wall of the insulative housing 1, and the closed outer conductive layer of Fig. 2 is opened to leave a certain gap (see Fig. 7), which finally forms an approximately closed outer conductive. Layer 2. Due to the coupling of the electromagnetic waves, such an approximately closed outer conductive layer 2 can also conduct the outer conductors 8 (see Fig. 9) of the two sets of cables 10. It should be noted that this paragraph is merely an exemplary explanation of the term "closed arrangement", and does not indicate that the figure in Fig. 7 is really a cross-sectional view of the radio frequency connector of the present invention.

Specifically, as shown in FIG. 1 , the radio frequency connector according to an embodiment of the present invention, in this example, the outer conductive layer 2 is preferably an outer metal plating layer or an outer metal coating layer, and the structure is convenient for being integrated with the insulating body 1 . . The outer conductive layer 2 is preferably realized by a surface plating process on the insulating body 1. It can be understood that the outer conductive layer 2 may also be coated with conductive particles on the insulating body by spraying, wherein the conductive particles may be metal particles such as copper, aluminum, alloy or non-metal particles such as graphite particles. Silicon carbide, etc.

Specifically, as shown in FIG. 2, the radio frequency connector according to an embodiment of the present invention, in this example, the inner wall of the insulative housing 1 is covered with an inner conductive layer 3 for signal transmission, and the inner conductive layer 3 is used for communication. Connecting the inner conductor 9 (see Fig. 1) of the cable 10 (see Fig. 1), the inner conductive layer 9 (see Fig. 1) is insulated from the outer conductive layer 2 by the insulating body 1.

In this example, the inner conductive layer 3 is closed along the inner wall of the insulative housing 1.

Of course, it will be apparent to those skilled in the art that the inner conductive layer 3 satisfies the inner conductor of the cable 10 that conducts more than two.

Under the condition of 9, the inner conductive layer 3 is approximately closed along the inner wall of the insulative housing 1. Specifically, in this example, the inner conductive layer 3 is preferably an inner metal plating layer or an inner metal coating layer. In this example, the inner conductive layer 3 is preferentially plated, so that it has the advantage of easy processing.

Specifically, as shown in FIG. 5, the radio frequency connector according to an embodiment of the present invention has four through holes 4, and is divided into two groups symmetrically disposed on opposite walls of the insulative housing 1, so that the cable is realized. 10 straight lines. Of course, those skilled in the art can know that the number of the through holes 4 can also be two, three, six or the like, and two or more through holes 4 can also be disposed on the adjacent wall of the insulating body 1. Upper, thereby achieving an angular connection of the cable 10 (see Figure 1). For example, if two through holes 4 in any one of the groups in FIG. 4 are respectively disposed on any two adjacent walls of the rectangular insulative housing 1, two sets of cables 10 (see FIG. 1) can be realized. Degree angle connection.

Further, as shown in FIG. 5, in the radio frequency connector according to an embodiment of the present invention, the four through holes 4 are stepped holes, and both are arranged in an outer large inner and a small. In this example, the larger diameter hole is the outer hole 4a, and the smaller diameter hole is the inner hole 4b, wherein the stepped hole outer hole 4a is for accommodating and positioning the outer conductor 8 of the cable 10 (see Fig. 1) (see Figure 1), the inner hole 4b of the stepped hole is for receiving and passing through the inner conductor 9 of the cable 10 (see Fig. 1) (see Fig. 1), so the present embodiment is advantageous for the outer conductor 8 of the cable 10 (see Fig. 1). (See Figure 1) for positioning.

Further, as shown in the enlarged view of FIG. 6, the inner wall of the larger diameter hole in the stepped hole is provided with a metal layer 6, that is, a metal layer 6 is provided on the inner periphery of the outer hole 4a to facilitate the cable 10 (see FIG. 1). The outer conductor 8 (see Figure 1) is soldered and fixed.

Further, as shown in FIG. 3, the insulative housing 1 is a rectangular box-shaped body, and the bottom surface of the insulative housing 1 is provided with an insulating portion 5, and the insulating portion 5 is formed by the bottom of the insulative housing 1. Extending outwards. Specifically, the insulating portion 5 is disposed integrally or partially along the bottom surface of the insulative housing 1. Since the surface of the insulating portion 5 has no metal layer, the RF connector is insulated from other objects, and the prior art is affected by vibration, the protective cover is easily detached, and the reliability is poor.

Specifically, as shown in FIG. 3, the RF connector according to an embodiment of the present invention, in this example, the insulating portion 5 includes two, and the two insulating portions 5 are arranged in parallel and symmetrically.

Of course, those skilled in the art can understand that the above-mentioned insulating structure of the radio frequency connector is not limited to the above structure, and an insulating protective cover can be disposed outside the insulating body.

As shown in FIG. 7, the radio frequency connector according to another embodiment of the present invention can also be seen in FIG. 8. This example is mainly described with reference to FIG. 7. The difference between this embodiment and the embodiment shown in FIG. 2 is as follows: The RF connector is not provided with an inner conductive layer 3 (see Fig. 2). In this example, two or more inner conductors 9 of the connected cable 10 are soldered (see Fig. 9); the outer conductive layer 2 is along the insulating body 1 The height direction is partially and approximately closed (see also FIG. 8); the four through holes 4 are all cylindrical holes, and the inner wall of the through hole 4 is provided with a metal 6. The rest are the same, and will not be repeated in this example.

The radio frequency connector according to another embodiment of the present invention as shown in FIG. 9a, the embodiment and the area of the embodiment described in FIG. The other is that: the metal layer 6 is not provided on the inner periphery of the through hole 4 (see FIG. 7), and the structure can also realize the basic connection function of the radio frequency connector. The rest are the same, and will not be repeated in this example.

As shown in FIG. 10, the radio frequency connector according to another embodiment of the present invention can also be seen in FIG. 11. The present embodiment is mainly described with reference to FIG. 10. The difference between this embodiment and the embodiment shown in FIG. 1 is: The inner wall of the outer hole 4a of the hole is not provided with a metal 6 (see Fig. 6), and this structure can also realize the basic connection function of the radio frequency connector. The rest are the same, and will not be repeated in this example.

Referring to FIG. 1, the embodiment of the present invention binds energy between the outer conductive layer 2 and the inner conductive layer 3, and adjusts the distance between the outer conductive layer 2 and the inner conductive layer 3 on the same wall of the insulating body 1. Sensual, thus achieving the adjustment of standing waves.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

Claim

An RF connector, the RF connector includes an insulative housing, the inside of the insulative housing is provided with a cavity, and the cavity is configured to receive an inner conductor of the connected cable, the insulative body The outer wall is coated with an outer conductive layer for signal transmission, the outer conductive layer is for connecting the outer conductor of the connected cable, and the insulating body is provided with a through hole for the said Connect the cable through.

2. The RF connector of claim 1, wherein the outer conductive layer is closed along an outer wall of the insulative housing.

3. The radio frequency connector according to claim 1, wherein the outer conductive layer is approximately closed along an outer wall of the insulative housing.

The radio frequency connector according to any one of claims 1 to 3, wherein an inner wall of the insulative housing is coated with an inner conductive layer capable of signal transmission, and the inner conductive layer is used for communication. The inner conductor of the connected cable, the inner conductive layer and the outer conductive layer are insulated by the insulating body.

The radio frequency connector according to claim 4, wherein the inner conductive layer is closed along an inner wall of the insulative housing.

The radio frequency connector according to claim 4, wherein the inner conductive layer is approximately closed along an inner wall of the insulative housing.

The radio frequency connector according to any one of claims 1 to 3, wherein the inner conductor of the connected cable is soldered.

The radio frequency connector according to any one of claims 1 to 7, wherein the through hole is a stepped hole, and the stepped holes are all arranged in an outer large inner and a small.

The radio frequency connector according to claim 8, wherein a periphery of an inner wall of the larger diameter hole in the stepped hole is provided with a metal layer.

The radio frequency connector according to any one of claims 1 to 9, wherein the insulative housing is a box-shaped body, and the bottom surface of the insulative housing is provided with an insulating portion, and the insulating portion is provided by The bottom surface of the insulating body extends outward.

The radio frequency connector according to claim 10, wherein the insulating portion is disposed integrally or partially along a bottom surface of the insulative housing.

The radio frequency connector according to any one of claims 1 to 9, wherein an outer surface of the radio frequency connector is provided with an insulating protective cover.

The radio frequency connector according to any one of claims 1 to 12, wherein the insulating body is a rectangular shape, the through holes are four and are symmetrically disposed on opposite walls of the insulating body.