TWI805994B - Rf coaxial jumper and its wire end connector and assembly method - Google Patents

Abstract

The RF coaxial jumper and its wire end connector and assembly method is provided. The invention is through the structural fit of the two snapped metal shells to provide a shielding structure for the wire end connector where the coaxial cable core layer is joined to avoid the leakage of the wire end connector where the coaxial cable core layer is joined, and the shielding structure connect the exposed outer conductor layer of the coaxial cable to form a shielding loop, so as to avoid the antenna effect of the shielding structure, therefore, the invention can satisfy the millimeter wave high frequency signal transmission of 5G communication.

Description

RF coaxial jumper and its line end connector and assembly method

The present invention provides an RF coaxial jumper and its wire end connector and assembly method, especially an RF coaxial jumper capable of transmitting millimeter-wave high-frequency signals in the 28-45 GHz frequency domain or even higher than the 45 GHz frequency domain and its wire end connection device and assembly method.

Press, it has been more than 20 years since the product of ultra-thin coaxial connector came out. Because the product is thin and short and has excellent signal transmission function, it can fully meet the high-frequency signal transmission in the 0~6GHz frequency domain, so it is now widely used in mobile communication products.

Generally speaking, ultra-thin coaxial connectors can be roughly divided into board-end connectors and wire-end connectors. In application, the wire-end connectors and coaxial cables are connected to form RF coaxial jumpers. The wire-end connector at the end of the jumper wire can then snap-fit with the board-end connector to transmit the coaxial signal.

However, the traditional RF coaxial jumper on the market, due to the problem of wave leakage in the structural design and the antenna effect problem in the partial shielding area when combined with the coaxial cable, the existing conventional line-end connectors are not suitable for the transmission of high-frequency signals. The ability can only meet the transmission of high-frequency signals below the 10GHz frequency domain. In this way, although it is sufficient to meet the communication needs of 4G, it is still insufficient for the transmission of millimeter-wave high-frequency signals in the 28~45GHz frequency domain of 5G communication.

With the advent of the 5G communication era, how to provide an RF coaxial jumper that can correspond to the frequency range of 28GHz~45GHz or even above 45GHz required by 5G communication has become the goal pursued by people in the technical field.

In view of the above-mentioned shortcomings of the prior art, the present invention provides a cable-end connector for joining coaxial cables. The coaxial cable has an exposed core wire layer and an outer conductor layer. The line-end connector system includes: a central conductor, insulating colloid, a main metal shell and a secondary metal shell. The central conductor system has a joint structure, and the joint structure is used for jointing the exposed core wire layer of the coaxial cable. The insulating adhesive system combines the central conductor and exposes the bonding structure, so that the bonding structure can bond the exposed core wire layer of the coaxial cable. The main metal shell is embedded with insulating colloid and has an overlapping structure of the main metal shell, which is used to overlap the exposed outer conductor layer of the coaxial cable. The secondary metal shell is fastened to the main metal shell and has a shielding structure. The shielding structure extends to the vicinity of the bonding structure where the core wire layer is joined and has a lap joint of the secondary metal shell. The lap joint of the secondary metal shell must overlap the coaxial line. The exposed outer conductor layer of the cable, so that the shielding structure and the exposed outer conductor layer of the coaxial cable form a shielding loop to avoid the antenna effect of the shielding structure, and the shielding loop provides shielding for the joint core layer of the joint structure to avoid the joint structure Wave leakage occurs at the joint core layer.

Preferably, in the wire-end connector of the present invention, the secondary metal shell also has a crimping structure, and the crimping structure provides crimping of the overlapping portion of the secondary metal shell, so that the overlapping portion of the secondary metal shell electrically contacts the coaxial The exposed outer conductor layer of the cable, and the shielding structure has to overlap the exposed outer conductor layer of the coaxial cable.

Preferably, in the wire end connector of the present invention, the shielding structure also extends to the vicinity of the exposed core layer of the coaxial cable, and the shielding circuit provides shielding for the exposed core layer of the coaxial cable.

Preferably, in the wire end connector of the present invention, the front end of the main metal shell has a buckling structure at the front end of the main metal shell, the front end of the secondary metal shell has a buckling structure at the front end of the secondary metal shell, and the front end of the main metal shell The fastening structure cooperates structurally with the fastening structure at the front end of the secondary metal shell to complete the fastening of the front ends of the secondary metal shell and the main metal shell.

Preferably, in the wire end connector of the present invention, the rear end of the main metal shell has a buckling structure at the rear end of the main metal shell, the rear end of the secondary metal shell has a buckling structure at the rear end of the secondary metal shell, and the main metal shell has a rear end buckling structure. The fastening structure at the rear end of the metal shell is structurally matched with the fastening structure at the rear end of the secondary metal shell so as to complete the fastening of the rear ends of the secondary metal shell and the main metal shell.

In addition, the present invention also provides an RF coaxial jumper, and the RF coaxial jumper system includes: a coaxial cable and a wire end connector. The line end connector has: a central conductor, an insulating colloid, a main metal shell and a secondary metal shell. A coaxial cable system has an exposed core layer and an outer conductor layer. The center conductor has a bonding structure. The insulating glue system combines the central conductor and exposes the bonding structure, so that the bonding structure can be bonded to the exposed core wire layer of the coaxial cable. The main metal shell is embedded with insulating colloid and overlapped with the exposed outer conductor layer of the coaxial cable. The secondary metal shell is fastened to the main metal shell and has a shielding structure. The shielding structure extends to the vicinity of the bonding structure and the core wire layer, and overlaps the exposed outer conductor layer of the coaxial cable, so that the shielding structure and the exposed outer conductor layer A shielding loop is formed to prevent the shielding structure from producing an antenna effect, and the shielding loop is used to provide shielding for the bonded core wire layer of the joint structure, so as to avoid wave leakage at the bonded core wire layer of the joint structure.

Preferably, in the RF coaxial jumper of the present invention, the secondary metal shell also has a crimping structure, and the crimping structure provides a crimping joint of the secondary metal shell, so that the shielding structure can overlap the exposed part of the coaxial cable. outer conductor layer.

Furthermore, the present invention provides a method for assembling RF coaxial jumper wires. The method for assembling RF coaxial jumper wires includes: providing a central conductor and insulating colloid, making the insulating colloid combine with the central conductor, wherein the central conductor system has a joint structure, and the insulating colloid The exposed joint structure of the system; the main metal shell is provided, and the main metal shell is embedded with insulating colloid; the coaxial cable is provided, and the coaxial cable system has an exposed core wire layer and an external conductor layer; the joint structure is connected to the exposed core wire of the coaxial cable layer, and make the main metal shell overlap the exposed outer conductor layer of the coaxial cable; The structure overlaps the exposed outer conductor layer of the coaxial cable, so that the shielding structure and the exposed outer conductor layer of the coaxial cable form a shielding loop to avoid the antenna effect of the shielding structure, and the shielding loop provides shielding for the joint core layer of the bonding structure In order to avoid wave leakage at the joint core layer of the joint structure.

Compared with the conventional technology, the RF coaxial jumper and its wire-end connector and assembly method of the present invention are based on the structural cooperation of two fastened metal shells, and the wire-end connector is connected to the core wire layer of the coaxial cable. Provide a shielding structure at the place to avoid wave leakage where the wire end connector connects to the core wire layer of the coaxial cable, and let the shielding structure overlap the exposed outer conductor layer of the coaxial cable to form a shielding loop to avoid the shielding structure The antenna effect is generated, therefore, the RF coaxial jumper of the present invention can transmit millimeter-wave high-frequency signals in the 28-45GHz frequency domain or even higher than the 45GHz frequency domain, so as to meet the millimeter-wave high-frequency signal transmission of 5G communication.

The technical content of the present invention is described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various modifications and changes may be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

The present invention provides an RF coaxial jumper and its wire-end connector and assembly method. For the technical disclosure of the present invention, please refer to FIGS. 1-26 . In the present invention, the RF coaxial jumper is used for transmitting radio frequency signals, and mainly includes: a coaxial cable and a wire end connector.

For the assembly method of the RF coaxial jumper of the present invention, firstly, as shown in FIG. 1 and FIG. 15 , the central conductor 121 and the insulating colloid 122 are provided, and then the insulating colloid 122 is combined with the central conductor 121 to provide positioning for the central conductor 121. Wherein, the combination of the central conductor 121 and the insulating colloid 122 can be achieved through an assembly method or an embedded injection method.

The central conductor 121 has a bonding structure 1211 , and the insulating compound 122 combined with the central conductor 121 can expose the bonding structure 1211 to provide subsequent bonding.

Next, as shown in FIGS. 2 to 4 and FIGS. 16 to 18 , the main metal shell 123 embedded with the insulating colloid 122 is provided. Furthermore, as shown in Figure 5 and Figure 19, a coaxial cable 11 with an exposed core wire layer 111 and an outer conductor layer 112 is provided, wherein the core wire layer 111 is used to transmit high-frequency signals, and the outer conductor layer 112 is used to transmit Mask the signal. Then, as shown in FIG. 6 and FIG. 20, at the position where the insulating colloid 122 exposes the joint structure 1211, by welding, for example, the joint structure 1211 is joined to the exposed core layer 111 of the coaxial cable 11, so that the core wire of the coaxial cable 11 The high-frequency signal of the layer 111 is transmitted to the central conductor 121 .

In addition, in the present invention, the main metal shell 123 can also overlap the exposed outer conductor layer 112 of the coaxial cable 11. For example, as shown in FIG. 7 and FIG. 21, the main metal shell 123 has a main metal shell The body overlapping structure 1231 is used to overlap the exposed outer conductor layer 112 of the coaxial cable 11 by electrical overlapping methods such as resistance welding or riveting, so that the shielding signal of the outer conductor layer 112 of the coaxial cable 11 can be transmitted to The main metal shell 123 .

Next, provide a secondary metal shell 124 with a shielding structure 1241, make the secondary metal shell 124 buckle the main metal shell 123, and make the secondary metal shell 124 overlap the main metal shell 123, so that the main metal shell 123 The shielding signal is transmitted to the secondary metal shell 124 to form a shielding loop L as shown in FIG. 13 . For the fastening of the secondary metal shell 124 and the main metal shell 123, as shown in Figure 11 and Figure 25, the front end of the main metal shell 123 has a front end buckle structure 1232 of the main metal shell, correspondingly, the secondary metal shell The front end of the housing 124 has a front-end fastening structure 1242 of the secondary metal shell. It should be noted that the front-end fastening structure 1232 of the main metal shell is structurally matched with the front-end fastening structure 1242 of the secondary metal shell, so that it can be riveted by, for example, The construction method completes the fastening of the front ends of the secondary metal shell 124 and the main metal shell 123 .

Preferably, as shown in Figure 11 and Figure 25, the rear end of the main metal shell 123 has a fastening structure 1233 at the rear end of the main metal shell, and correspondingly, the rear end of the secondary metal shell 124 has a rear end of the secondary metal shell The fastening structure 1243, it should be noted that the fastening structure 1233 at the rear end of the main metal shell is structurally matched with the fastening structure 1243 at the rear end of the secondary metal shell, so that the secondary metal shell 124 and the main metal shell 124 can be completed by riveting, for example. The fastening of the rear ends of the two metal shells 123.

Then, as shown in FIG. 13 to FIG. 14 , the shielding structure 1241 is, for example, an L-shaped extension piece extending from the main body of the secondary metal shell 124. By bending the shielding structure 1241, for example, the shielding structure 1241 can be extended to the bonding structure 1211 to join the core wires. The vicinity of P at layer 111 to provide shielding. As shown in Figures 8 to 11 and Figures 22 to 26, the shielding structure 1241 also has a secondary metal shell overlapping portion 12411, wherein the secondary metal shell overlapping portion 12411 is from the body of the shielding structure 1241 to the coaxial cable The exposed outer conductor layer 112 of the coaxial cable 11 extends to overlap the exposed outer conductor layer 112 of the coaxial cable 11, so that the shielding structure 1241 can overlap the exposed outer conductor layer 112 of the coaxial cable 11, so that the coaxial cable 11 The shielding signal of the outer conductor layer 112 can be transmitted to the shielding structure 1241, so that the shielding structure 1241 and the exposed outer conductor layer 112 of the coaxial cable 11 form a shielding loop L, so as to avoid the antenna effect of the shielding structure 1241, and solve the problem of existing wire end connectors. Partially shielded areas can create problems with antenna effects when combined with coaxial cables.

In addition, the shielding loop L can also provide shielding to the joint structure 1211 of the central conductor 121 at the joint core wire layer 111 in multiple directions, so as to avoid the generation of wave leakage at the joint structure 1211 joint core wire layer 111 P. Therefore, the present invention RF coaxial jumper 1 can transmit millimeter-wave high-frequency signals in the 28-45GHz frequency domain or even higher than the 45GHz frequency domain, so as to meet the millimeter-wave high-frequency signal transmission of 5G communication. Preferably, in the present invention, the shielding structure 1241 can also extend to the vicinity of the exposed core layer 111 of the coaxial cable 11, so that the exposed core layer 111 of the coaxial cable 11 can be shielded by the shielding loop L, so as to avoid the coaxial cable 11 The high-frequency signal transmission of the exposed core wire layer 111 is affected.

Preferably, as shown in FIG. 11 , the secondary metal shell 124 also has, for example, a sheet-shaped crimping structure 1244. The crimping structure 1244 provides a crimping sub-metal shell overlapping portion 12411, so that the secondary metal shell overlaps The portion 12411 is in electrical contact with the exposed outer conductor layer 112 of the coaxial cable 11 to ensure that the shielding structure 1241 can overlap the exposed outer conductor layer 112 of the coaxial cable 11 to form a shielding loop L.

To sum up, the RF coaxial jumper and its wire-end connector and assembly method of the present invention are based on the structural cooperation of the two snap-fit metal shells, so that at least one of the two snap-fit metal shells The shielding structure of one can overlap the exposed outer conductor layer of the coaxial cable to form a shielding loop, so as to avoid the antenna effect of the shielding structure, and connect the core wire layer of the coaxial cable to the line end connector through the shielding loop Shielding is provided at the place to avoid wave leakage at the line-end connector connected to the core layer of the coaxial cable. Therefore, the RF coaxial jumper of the present invention can transmit millimeter-wave high-frequency signals in the 28-45GHz frequency domain or even higher than the 45GHz frequency domain. To meet the millimeter wave high frequency signal transmission of 5G communication.

The above-mentioned embodiments are only illustrative to illustrate the principles and functions of the present invention, and are not intended to limit the present invention. Anyone skilled in the art can make modifications and changes to the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the rights of the present invention should be listed in the scope of the patent application described later.

1: RF coaxial jumper 11: coaxial cable 111: core wire layer 112: Outer conductor layer 12: Wire end connector 121: center conductor 1211: joint structure 122: insulating colloid 123: Main metal shell 1231: Lap joint structure of the main metal shell 1232: The front buckle structure of the main metal shell 1233: Buckle structure at the rear end of the main metal shell 124: sub-metal shell 1241: shielding structure 12411: Lap joint of secondary metal shell 1242: Front buckle structure of sub-metal shell 1243: Buckle structure at the rear end of the secondary metal shell 1244: Crimp structure L: shielded circuit P: where the center conductor connects to the core wire layer of the coaxial cable

1 to 14 are schematic diagrams of the assembly of the RF coaxial jumper and its line end connector according to the first embodiment of the present invention.

15 to 26 are schematic diagrams of the assembly of the RF coaxial jumper and its wire-end connector according to the second embodiment of the present invention.

11: coaxial cable

1232: The front buckle structure of the main metal shell

1233: Buckle structure at the rear end of the main metal shell

1241: shielding structure

12411: Lap joint of secondary metal shell

1242: Front buckle structure of sub-metal shell

1243: Buckle structure at the rear end of the secondary metal shell

P: where the center conductor connects to the core wire layer of the coaxial cable

Claims (8)

A wire end connector is used for joining a coaxial cable, the coaxial cable has an exposed core wire layer and an outer conductor layer, the wire end connector includes: a center conductor having a bonding structure; an insulating glue, the insulating glue system combines with the central conductor and exposes the bonding structure, so that the bonding structure can bond the exposed core wire layer of the coaxial cable; A main metal shell, the main metal shell is embedded with the insulating colloid and has a main metal shell lapping structure, and the main metal shell lapping structure is used to lap the exposed outer conductor layer of the coaxial cable ;as well as a primary metal shell, the secondary metal shell is fastened to the primary metal shell and has a shielding structure, the shielding structure extends to the vicinity of where the joint structure joins the core wire layer and has an overlapping portion of the primary metal shell, the The overlapping portion of the sub-metal shell may overlap the exposed outer conductor layer of the coaxial cable, so that the shielding structure and the exposed outer conductor layer of the coaxial cable form a shielding loop, so as to avoid the antenna effect of the shielding structure, And the shielding circuit provides shielding to the joint structure where the core wire layer is joined, so as to avoid the generation of wave leakage at the joint structure where the core wire layer is joined. The wire end connector as described in item 1 of the scope of the patent application, wherein, the secondary metal shell also has a crimping structure, and the crimping structure is provided to crimp the overlapping part of the secondary metal shell, so that the secondary metal shell The overlapping portion of the housing electrically contacts the exposed outer conductor layer of the coaxial cable, so that the shielding structure overlaps the exposed outer conductor layer of the coaxial cable. The wire end connector as described in item 1 of the scope of the patent application, wherein, the shielding structure also extends to the vicinity of the exposed core layer of the coaxial cable, and the exposed core layer of the coaxial cable is provided by the shielding loop. shield. The wire-end connector described in item 1 of the scope of the patent application, wherein the front end of the main metal shell has a front end snap-fit structure of the main metal shell, and the front end of the secondary metal shell has a front end snap-fit structure of the primary metal shell Structure, the fastening structure at the front end of the main metal shell is structurally matched with the fastening structure at the front end of the secondary metal shell, so as to complete the fastening of the front ends of the secondary metal shell and the main metal shell. The wire-end connector described in item 4 of the scope of the patent application, wherein the rear end of the main metal shell has a snap-fit structure at the rear end of the main metal shell, and the rear end of the secondary metal shell has a primary metal shell The rear-end fastening structure, the rear-end fastening structure of the main metal shell is structurally matched with the rear-end fastening structure of the secondary metal shell, so as to complete the fastening of the rear ends of the secondary metal shell and the main metal shell . An RF coaxial jumper, the RF coaxial jumper system includes: A coaxial cable, the coaxial cable has an exposed core wire layer and an outer conductor layer; A wire-end connector having: a center conductor having a bonding structure; an insulating glue, the insulating glue system combines with the central conductor and exposes the bonding structure, so that the bonding structure can bond the exposed core wire layer of the coaxial cable; a main metal shell, the main metal shell is embedded with the insulating colloid and overlaps the exposed outer conductor layer of the coaxial cable; and A primary metal shell, the secondary metal shell is fastened to the main metal shell and has a shielding structure, the shielding structure extends to the vicinity of where the joint structure joins the core wire layer, and overlaps the exposed part of the coaxial cable The outer conductor layer, so that the shielding structure and the exposed outer conductor layer form a shielding loop to prevent the shielding structure from producing an antenna effect, and the shielding loop provides shielding at the bonding structure where the core wire layer is joined to avoid the shielding loop. The joint structure joints the core wire layer to generate wave leakage. The RF coaxial jumper as described in item 6 of the scope of the patent application, wherein, the secondary metal shell also has a crimping structure, and the crimping structure is provided to crimp the overlapping part of the secondary metal shell, so that the shielding structure It is necessary to overlap the exposed outer conductor layer of the coaxial cable. An RF coaxial jumper assembly method, the RF coaxial jumper assembly method includes: providing a central conductor and an insulating gel, making the insulating gel bond the central conductor, wherein the central conductor has a joint structure, and the insulating gel system exposes the joint structure; providing a main metal shell, so that the main metal shell is fitted with the insulating colloid; A coaxial cable is provided, the coaxial cable has an exposed core wire layer and an outer conductor layer; making the joint structure engage the exposed core wire layer of the coaxial cable, and making the main metal shell overlap the exposed outer conductor layer of the coaxial cable; and A primary metal shell is provided, wherein the secondary metal shell has a shielding structure, the secondary metal shell is fastened to the main metal shell and the shielding structure overlaps the exposed outer conductor layer of the coaxial cable, so that The shielding structure and the exposed outer conductor layer of the coaxial cable form a shielding loop to prevent the shielding structure from producing an antenna effect, and the shielding loop provides shielding to the bonding structure where the core wire layer is bonded to avoid the bonding. The structure joins the core layer to generate wave leakage.

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