RF Coaxial Jumper and Its Terminal Connector and Assembly Method

Abstract

An RF coaxial jumper, its wire-end connector and assembly method. Through the structural cooperation of two buckled metal shells, a shielding structure is provided at the joint of the wire-end connector and the coaxial cable core wire layer to avoid wave leakage at the joint of the wire-end connector and the coaxial cable core wire layer, and the shielding structure overlaps the exposed outer conductor layer of the coaxial cable to form a shielding loop to avoid the antenna effect of the shielding structure. Therefore, the RF coaxial jumper of the present invention can transmit millimeter-wave high-frequency signals in the frequency range of 28-45 GHz or even higher than 45 GHz to meet the millimeter-wave high-frequency signal transmission of 5G communication.

Description

Technical Field

[0001] The present invention provides an RF coaxial jumper, its wire-end connector and an assembly method, especially an RF coaxial jumper, its wire-end connector and an assembly method that can transmit millimeter-wave high-frequency signals in the frequency range of 28 - 45 GHz or even higher than 45 GHz. Background Art

[0002] Since the ultra-thin coaxial connector products came out more than 20 years ago, due to their thin, light, short and excellent signal transmission functions, they can fully meet the high-frequency signal transmission in the frequency range of 0 - 6 GHz, so they are now widely used in mobile communication products.

[0003] Generally speaking, ultra-thin coaxial connectors can be roughly divided into two types: board-end connectors and wire-end connectors. When in use, the wire-end connector is connected to the coaxial cable to form an RF coaxial jumper, and the wire-end connector at the end of the RF coaxial jumper can be further fastened to the board-end connector to transmit coaxial signals.

[0004] However, for the traditional RF coaxial jumpers on the market, due to the wave leakage problem in the structural design and the antenna effect problem in some shielding areas when combined with the coaxial cable, the transmission capacity of the existing conventional wire-end connectors for high-frequency signals can only meet the high-frequency signal transmission below 10 GHz. Thus, although it is sufficient to meet the communication requirements of 4G, it is still insufficient for the transmission of millimeter-wave high-frequency signals in the frequency range of 28 - 45 GHz for 5G communication.

[0005] With the advent of the 5G communication era, how to provide an RF coaxial jumper corresponding to the frequency range of 28 GHz - 45 GHz or even above 45 GHz required for 5G communication has become the goal pursued by the personnel in this technical field. Summary of the Invention

[0006] In view of the disadvantages of the above-mentioned known technologies, the present invention provides a wire-end connector for joining a coaxial cable, the coaxial cable having an exposed core wire layer and an outer conductor layer. The wire-end connector includes: a central conductor, an insulating colloid, a main metal housing, and a secondary metal housing. The central conductor has a joining structure for joining the exposed core wire layer of the coaxial cable. The insulating colloid is combined with the central conductor and exposes the joining structure so that the joining structure can join the exposed core wire layer of the coaxial cable. The main metal housing is fitted with the insulating colloid and has a main metal housing overlapping structure for overlapping the exposed outer conductor layer of the coaxial cable. The secondary metal housing is fastened to the main metal housing and has a shielding structure that extends to the vicinity of the location where the joining structure joins the core wire layer and has a secondary metal housing overlapping portion that can 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 to avoid the antenna effect of the shielding structure, and provide shielding to the location where the joining structure joins the core wire layer through the shielding loop to avoid wave leakage at the location where the joining structure joins the core wire layer.

[0007] Preferably, in the wire-end connector of the present invention, the secondary metal housing further has a crimping structure that provides crimping to the secondary metal housing overlapping portion, so that the secondary metal housing overlapping portion is in electrical contact with the exposed outer conductor layer of the coaxial cable, enabling the shielding structure to overlap the exposed outer conductor layer of the coaxial cable.

[0008] Preferably, in the wire-end connector of the present invention, the shielding structure also extends to the vicinity of the exposed core wire layer of the coaxial cable, and provides shielding to the exposed core wire layer of the coaxial cable through the shielding loop.

[0009] Preferably, in the wire-end connector of the present invention, the front end of the main metal housing has a main metal housing front-end fastening structure, and the front end of the secondary metal housing has a secondary metal housing front-end fastening structure. The main metal housing front-end fastening structure and the secondary metal housing front-end fastening structure are mutually cooperating structures, enabling the fastening of the front ends of the secondary metal housing and the main metal housing to be completed.

[0010] Preferably, in the wire-end connector of the present invention, the rear end of the main metal housing has a main metal housing rear-end fastening structure, and the rear end of the secondary metal housing has a secondary metal housing rear-end fastening structure. The main metal housing rear-end fastening structure and the secondary metal housing rear-end fastening structure are mutually cooperating structures, enabling the fastening of the rear ends of the secondary metal housing and the main metal housing to be completed.

[0011] In addition, the present invention further provides an RF coaxial jumper, which includes a coaxial cable and a terminal connector. The terminal connector has a center conductor, an insulating colloid, a main metal housing, and a secondary metal housing. The coaxial cable has an exposed core wire layer and an outer conductor layer. The center conductor has a joining structure. The insulating colloid combines with the center conductor and exposes the joining structure, enabling the joining structure to join the exposed core wire layer of the coaxial cable. The main metal housing fits into the insulating colloid and overlaps the exposed outer conductor layer of the coaxial cable. The secondary metal housing is fastened to the main metal housing and has a shielding structure. The shielding structure extends to the vicinity of the joining point of the joining 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 form a shielding loop to avoid the antenna effect of the shielding structure, and provide shielding to the joining point of the joining structure and the core wire layer through the shielding loop to avoid wave leakage at the joining point of the joining structure and the core wire layer.

[0012] Preferably, in the RF coaxial jumper of the present invention, the secondary metal housing further has a crimping structure, and the crimping structure provides crimping to the overlapping part of the secondary metal housing, enabling the shielding structure to overlap the exposed outer conductor layer of the coaxial cable.

[0013] Furthermore, the present invention also provides an assembly method for an RF coaxial jumper. The assembly method for the RF coaxial jumper includes: providing a center conductor and an insulating colloid, combining the insulating colloid with the center conductor, wherein the center conductor has a joining structure and the insulating colloid exposes the joining structure; providing a main metal housing, fitting the main metal housing into the insulating colloid; providing a coaxial cable, the coaxial cable having an exposed core wire layer and an outer conductor layer; joining the joining structure to the exposed core wire layer of the coaxial cable, and making the main metal housing overlap the exposed outer conductor layer of the coaxial cable; and providing a secondary metal housing, wherein the secondary metal housing has a shielding structure, fastening the secondary metal housing to the main metal housing and making the shielding structure 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 to avoid the antenna effect of the shielding structure, and provide shielding to the joining point of the joining structure and the core wire layer through the shielding loop to avoid wave leakage at the joining point of the joining structure and the core wire layer.

[0014] Compared with the prior art, the RF coaxial jumper, its terminal connector and the assembly method of the present invention, through the structural cooperation of two fastened metal housings, provide a shielding structure to the joining point of the terminal connector and the core wire layer of the coaxial cable to avoid wave leakage at the joining point of the terminal connector and the core wire layer of the coaxial cable, and make the shielding structure overlap the exposed outer conductor layer of the coaxial cable to form a shielding loop to avoid the antenna effect of the shielding structure. Therefore, the RF coaxial jumper of the present invention can transmit millimeter-wave high-frequency signals in the frequency range of 28 - 45 GHz or even higher than 45 GHz to meet the transmission of millimeter-wave high-frequency signals in 5G communication. Description of the Drawings

[0015] Figures 1 to 14 It is an assembly schematic diagram of the RF coaxial jumper and its wire-end connector according to the first embodiment of the present invention.

[0016] Figures 15 to 26 It is an assembly schematic diagram of the RF coaxial jumper and its wire-end connector according to the second embodiment of the present invention.

[0017] 1 RF coaxial jumper

[0018] 11 Coaxial cable

[0019] 111 Core wire layer

[0020] 112 Outer conductor layer

[0021] 12 Wire-end connector

[0022] 121 Center conductor

[0023] 1211 Joining structure

[0024] 122 Insulating colloid

[0025] 123 Main metal housing

[0026] 1231 Main metal housing overlapping structure

[0027] 1232 Main metal housing front-end fastening structure

[0028] 1233 Main metal housing rear-end fastening structure

[0029] 124 Sub-metal housing

[0030] 1241 Shielding structure

[0031] 12411 Sub-metal housing overlapping part

[0032] 1242 Sub-metal housing front-end fastening structure

[0033] 1243 Sub-metal housing rear-end fastening structure

[0034] 1244 Crimping structure

[0035] L Shielding loop

[0036] P At the joint of the center conductor and the core wire layer of the coaxial cable Detailed implementation manners

[0037] The technical content of the present invention will be described below through specific embodiments. 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 details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0038] The present invention provides an RF coaxial jumper, its cable end connector, and an assembly method. For the technical disclosure of the present invention, please refer to Figures 1 to 26 . In the present invention, the RF coaxial jumper is used to transmit radio frequency signals and mainly includes: a coaxial cable and a cable end connector.

[0039] Regarding the assembly method of the RF coaxial jumper of the present invention, first, as Figure 1 、 Figure 15 shown, a center conductor 121 and an insulating colloid 122 are provided. Then, the insulating colloid 122 is combined with the center conductor 121 to provide positioning for the center conductor 121. Among them, the combination of the center conductor 121 and the insulating colloid 122 can be achieved through an assembly method or an in-mold injection method.

[0040] As Figure 5 、 Figure 19 shown, the center conductor 121 has a joint structure 1211, and the insulating colloid 122 combined with the center conductor 121 can expose the joint structure 1211 to provide subsequent jointing.

[0041] Next, as Figures 2 to 4 and Figures 16 to 18 shown, a main metal housing 123 for fitting the insulating colloid 122 is provided. Furthermore, as Figure 5 、 Figure 19 shown, a coaxial cable 11 with an exposed core wire layer 111 and an external conductor layer 112 is provided. Among them, the core wire layer 111 is used to transmit high-frequency signals, and the external conductor layer 112 is used to transmit shielding signals. Then, as Figure 6 、 Figure 20 shown, at the position where the insulating colloid 122 exposes the joint structure 1211, the joint structure 1211 is joined to the exposed core wire layer 111 of the coaxial cable 11 through, for example, a welding method, so that the high-frequency signals of the core wire layer 111 of the coaxial cable 11 can be transmitted to the center conductor 121.

[0042] In addition, in the present invention, the main metal housing 123 can also overlap the exposed external conductor layer 112 of the coaxial cable 11. For example, as Figure 7 、 Figure 21As shown, the main metal housing 123 has a main metal housing overlapping structure 1231 for overlapping the exposed outer conductor layer 112 of the coaxial cable 11 by means of electrical overlapping such as resistance welding or riveting. In this way, the shielding signal of the outer conductor layer 112 of the coaxial cable 11 is transmitted to the main metal housing 123.

[0043] Next, a secondary metal housing 124 with a shielding structure 1241 is provided. The secondary metal housing 124 is snapped onto the main metal housing 123, and the secondary metal housing 124 is overlapped with the main metal housing 123. In this way, the shielding signal of the main metal housing 123 is transmitted to the secondary metal housing 124 to form a shielding loop L as shown in Figure 13 For the snap fit between the secondary metal housing 124 and the main metal housing 123, as shown in Figure 11 and Figure 25 shown, the front end of the main metal housing 123 has a main metal housing front end snap fit structure 1232. Correspondingly, the front end of the secondary metal housing 124 has a secondary metal housing front end snap fit structure 1242. It should be noted that the main metal housing front end snap fit structure 1232 and the secondary metal housing front end snap fit structure 1242 are mutually cooperating structures, so that the snap fit of the front ends of the secondary metal housing 124 and the main metal housing 123 can be completed by means of, for example, a riveting process.

[0044] Preferably, as shown in Figure 11 and Figure 25 shown, the rear end of the main metal housing 123 has a main metal housing rear end snap fit structure 1233. Correspondingly, the rear end of the secondary metal housing 124 has a secondary metal housing rear end snap fit structure 1243. It should be noted that the main metal housing rear end snap fit structure 1233 and the secondary metal housing rear end snap fit structure 1243 are mutually cooperating structures, so that the snap fit of the rear ends of the secondary metal housing 124 and the main metal housing 123 can be completed by means of, for example, a riveting process.

[0045] Then, as shown in Figures 13 to 14 and Figures 22 to 25 shown, the shielding structure 1241 is, for example, an L-shaped extension piece extending from the body of the secondary metal housing 124. The shielding structure 1241 can be bent, for example, so that the shielding structure 1241 extends to the vicinity of point P where the bonding structure 1211 bonds the core wire layer 111 to provide shielding. As shown in Figures 8 to 11 and Figures 22 to 26As shown, the shielding structure 1241 also has a secondary metal housing overlapping portion 12411. Among them, the secondary metal housing overlapping portion 12411 extends from the body of the shielding structure 1241 towards the exposed outer conductor layer 112 of the coaxial cable 11, and is used 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. In this way, the shielding signal of the outer conductor layer 112 of the coaxial cable 11 can be transmitted to the shielding structure 1241, and 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 shielding structure 1241 from generating an antenna effect, thereby solving the problem that part of the shielding area will generate an antenna effect when the existing wire-end connector is combined with the coaxial cable.

[0046] In addition, through the shielding loop L, three-dimensional shielding can also be provided to the joint structure 1211 of the central conductor 121 at the joint of the core wire layer 111 at multiple orientations in three-dimensional space to avoid wave leakage at the joint of the joint structure 1211 and the core wire layer 111 at P. Therefore, the RF coaxial jumper 1 of the present invention can transmit millimeter-wave high-frequency signals in the frequency range of 28 - 45 GHz or even higher than 45 GHz to meet the transmission of millimeter-wave high-frequency signals in 5G communication. Preferably, in the present invention, the shielding structure 1241 can also extend to the vicinity of the exposed core wire layer 111 of the coaxial cable 11, so that the exposed core wire layer 111 of the coaxial cable 11 is shielded through the shielding loop L to avoid the high-frequency signal transmission of the exposed core wire layer 111 of the coaxial cable 11 from being affected.

[0047] Preferably, as Figure 11 shown, the secondary metal housing 124 also has a crimping structure 1244, such as a sheet-like one. The crimping structure 1244 provides crimping to the secondary metal housing overlapping portion 12411, making the secondary metal housing overlapping portion 12411 electrically contact the exposed outer conductor layer 112 of the coaxial cable 11, thereby ensuring that the shielding structure 1241 can overlap the exposed outer conductor layer 112 of the coaxial cable 11 to form a shielding loop L.

[0048] In summary, for the RF coaxial jumper, its wire-end connector and the assembly method of the present invention, through the structural cooperation of two buckled metal housings, the shielding structure of at least one of the two buckled metal housings can overlap the exposed outer conductor layer of the coaxial cable to form a shielding loop, so as to avoid the shielding structure from generating an antenna effect, and provide shielding to the joint of the wire-end connector and the coaxial cable core wire layer through the shielding loop to avoid wave leakage at the joint of the wire-end connector and the coaxial cable core wire layer. Therefore, the RF coaxial jumper of the present invention can transmit millimeter-wave high-frequency signals in the frequency range of 28 - 45 GHz or even higher than 45 GHz to meet the transmission of millimeter-wave high-frequency signals in 5G communication.

[0049] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Those skilled in the art can modify and change the above embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of the protection of the rights of the present invention shall be as set forth in the following claims.

Claims

1. A wire-end connector, characterized in that, For connecting a coaxial cable, the coaxial cable having an exposed core layer and an outer conductor layer, the cable end connector comprising: A center conductor having a joining structure; An insulating colloid that joins the center conductor and exposes the joining structure, enabling the joining structure to join the exposed core layer of the coaxial cable; A main metal housing that fits over the insulating colloid and has a main metal housing overlapping structure for overlapping the exposed outer conductor layer of the coaxial cable; and A secondary metal housing that snaps onto the main metal housing and has a shielding structure and a crimping structure. The shielding structure extends to near the location where the joining structure joins the core layer and has a secondary metal housing overlapping portion that extends from the body of the shielding structure towards the outer conductor layer, and the crimping structure provides a crimp to the secondary metal housing overlapping portion, enabling the secondary metal housing overlapping portion to overlap the exposed outer conductor layer of the coaxial cable, to provide shielding between the location where the joining structure joins the core layer and the crimping structure, and to form a shielding loop between the shielding structure and the exposed outer conductor layer of the coaxial cable to avoid the antenna effect of the shielding structure, and to provide shielding to the location where the joining structure joins the core layer through the shielding loop to avoid wave leakage at the location where the joining structure joins the core layer.

2. The wire end connector according to claim 1, characterized in that, The shielding structure also extends to near the exposed core layer of the coaxial cable and provides shielding to the exposed core layer of the coaxial cable through the shielding loop.

3. The wire-end connector according to claim 1, characterized in that, The front end of the main metal housing has a main metal housing front end snapping structure, and the front end of the secondary metal housing has a secondary metal housing front end snapping structure. The main metal housing front end snapping structure and the secondary metal housing front end snapping structure are mutually cooperating structures, enabling the snapping of the front ends of the secondary metal housing and the main metal housing.

4. The wire end connector according to claim 3, characterized in that, The rear end of the main metal housing has a main metal housing rear end snapping structure, and the rear end of the secondary metal housing has a secondary metal housing rear end snapping structure. The main metal housing rear end snapping structure and the secondary metal housing rear end snapping structure are mutually cooperating structures, enabling the snapping of the rear ends of the secondary metal housing and the main metal housing.

5. An RF coaxial jumper, characterized in that, The RF coaxial jumper comprises: A coaxial cable having an exposed core layer and an outer conductor layer; A cable end connector having: A center conductor having a joining structure; An insulating colloid that joins the center conductor and exposes the joining structure, enabling the joining structure to join the exposed core layer of the coaxial cable; A main metal housing that fits over the insulating colloid and overlaps the exposed outer conductor layer of the coaxial cable; and A secondary metal housing that snaps onto the primary metal housing and has a shielding structure and a crimping structure. The shielding structure extends to near the location where the bonding structure bonds the core wire layer and has a secondary metal housing overlapping portion. The secondary metal housing overlapping portion extends from the body of the shielding structure towards the outer conductor layer, and the crimping structure provides a crimp to the secondary metal housing overlapping portion, enabling the secondary metal housing overlapping portion to overlap the exposed outer conductor layer of the coaxial cable, so as to provide shielding between the location where the bonding structure bonds the core wire layer and the crimping structure, and enabling the shielding structure and the exposed outer conductor layer to form a shielding loop to avoid the shielding structure from generating an antenna effect, and providing shielding to the location where the bonding structure bonds the core wire layer through the shielding loop to avoid wave leakage at the location where the bonding structure bonds the core wire layer.

6. A method for assembling an RF coaxial jumper, characterized in that, The RF coaxial jumper assembly method includes: Providing a center conductor and an insulating colloid, and bonding the insulating colloid to the center conductor. Among them, the center conductor has a bonding structure, and the insulating colloid exposes the bonding structure; Providing a primary metal housing and fitting the primary metal housing onto the insulating colloid; Providing a coaxial cable that has an exposed core wire layer and an outer conductor layer; Bonding the bonding structure to the exposed core wire layer of the coaxial cable, and overlapping the primary metal housing with the exposed outer conductor layer of the coaxial cable; and Providing a secondary metal housing. Among them, the secondary metal housing has a shielding structure and a crimping structure. The shielding structure extends to near the location where the bonding structure bonds the core wire layer and has a secondary metal housing overlapping portion. The secondary metal housing overlapping portion extends from the body of the shielding structure towards the outer conductor layer. Snapping the secondary metal housing onto the primary metal housing, and providing a crimp to the secondary metal housing overlapping portion through the crimping structure, enabling the secondary metal housing overlapping portion to overlap the exposed outer conductor layer of the coaxial cable, so as to provide shielding between the location where the bonding structure bonds the core wire layer and the crimping structure, and enabling the shielding structure and the exposed outer conductor layer of the coaxial cable to form a shielding loop to avoid the shielding structure from generating an antenna effect, and providing shielding to the location where the bonding structure bonds the core wire layer through the shielding loop to avoid wave leakage at the location where the bonding structure bonds the core wire layer.

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