阅读说明：本技术 Rf同轴跳线及其线端连接器与装配方法 (RF coaxial jumper wire, wire end connector and assembling method thereof ) 是由 陈世杰 龚锦川 于 2020-04-27 设计创作，主要内容包括：一种RF同轴跳线及其线端连接器与装配方法,通过两件扣合的金属壳体的结构配合,对线端连接器接合同轴线缆芯线层处提供屏蔽结构,以避免线端连接器接合同轴线缆芯线层处产生泄波,且使屏蔽结构搭接同轴线缆外露的外部导体层以构成屏蔽回路,以避免屏蔽结构产生天线效应。因此,本发明的RF同轴跳线可以传输28～45GHz频域甚至高于45GHz频域的毫米波高频信号,以满足5G通信的毫米波高频信号传输。(A shielding structure is provided at the position of the wire end connector, which is jointed with a core wire layer of a coaxial cable, through the structural matching of two buckled metal shells, so as to prevent the position of the wire end connector, which is jointed with the core wire layer of the coaxial cable, from generating wave leakage, and enable the shielding structure to lap an exposed outer conductor layer of the coaxial cable to form a shielding loop, so as to prevent the shielding structure from generating an antenna effect. Therefore, the RF coaxial jumper wire can transmit millimeter wave high-frequency signals in the frequency domain of 28-45 GHz and even higher than the frequency domain of 45GHz so as to meet the transmission of millimeter wave high-frequency signals of 5G communication.)

1. A wire end connector for engaging a coaxial cable having an exposed core wire layer and an outer conductor layer, comprising:

a center conductor having a bonding structure;

the insulating colloid is combined with the central conductor and exposes the joint structure, so that the joint structure can be jointed with the exposed core wire layer of the coaxial cable;

the main metal shell is embedded with the insulating colloid and is provided with a main metal shell lapping structure, and the main metal shell lapping structure is used for lapping the exposed outer conductor layer of the coaxial cable; and

the secondary metal shell is buckled with the main metal shell and is provided with a shielding structure, the shielding structure extends to the joint structure joint nearby the core wire layer and is provided with a secondary metal shell lapping part, the secondary metal shell lapping part can lap the coaxial cable exposed outside conductor layer to enable the shielding structure to follow the coaxial cable exposed outside conductor layer to form a shielding loop so as to avoid the antenna effect generated by the shielding structure, and the shielding loop is right for the joint structure joint to provide shielding at the core wire layer so as to avoid the joint structure joint to generate wave leakage at the core wire layer.

2. The wire end connector of claim 1, wherein said secondary metal shell further comprises a crimp arrangement, said crimp arrangement providing a crimp to said secondary metal shell overlap portion to electrically contact said secondary metal shell overlap portion to said exposed outer conductor layer of said coaxial cable to enable said shield arrangement to overlap said exposed outer conductor layer of said coaxial cable.

3. The wire end connector of claim 1, wherein said shielding structure further extends adjacent to said exposed core wire layer of said coaxial cable, said exposed core wire layer of said coaxial cable being shielded by said shielding return.

4. The wire end connector of claim 1, wherein the front end of the main metal shell has a main metal shell front end fastening structure, the front end of the secondary metal shell has a secondary metal shell front end fastening structure, and the main metal shell front end fastening structure and the secondary metal shell front end fastening structure are mutually matched structures, so that the fastening of the front ends of the secondary metal shell and the main metal shell is completed.

5. The wire end connector of claim 4, wherein the rear end of the main metal shell has a main metal shell rear end fastening structure, the rear end of the secondary metal shell has a secondary metal shell rear end fastening structure, and the main metal shell rear end fastening structure and the secondary metal shell rear end fastening structure are mutually matched structures, so that the fastening of the rear ends of the secondary metal shell and the main metal shell is completed.

6. An RF coaxial jumper, comprising:

a coaxial cable having an exposed core wire layer and an outer conductor layer;

a wire end connector having:

a center conductor having a bonding structure;

the insulating colloid is combined with the central conductor and exposes the joint structure, so that the joint structure can be jointed with the exposed core wire layer of the coaxial cable;

the main metal shell is embedded with the insulating colloid and is lapped with the exposed outer conductor layer of the coaxial cable; and

the secondary metal shell is buckled with the main metal shell and is provided with a shielding structure, the shielding structure extends to the position near the core wire layer jointed by the jointing structure and is lapped with the external conductor layer exposed by the coaxial cable, so that the shielding structure and the external conductor layer exposed form a shielding loop to prevent the shielding structure from generating an antenna effect, and the shielding loop is used for shielding the joint structure jointed by the core wire layer to prevent the jointing structure jointed by the core wire layer from generating wave leakage.

7. The RF coaxial jumper of claim 6, wherein the secondary metal shell further has a crimp structure that provides a crimp to the secondary metal shell overlap to enable the shielding structure to overlap the exposed outer conductor layer of the coaxial cable.

8. An RF coaxial jumper assembly method, comprising:

providing a central conductor and an insulating colloid, and combining the insulating colloid with the central conductor, wherein the central conductor is provided with a joint structure, and the joint structure is exposed out of the insulating colloid;

providing a main metal shell, and embedding the insulating colloid in the main metal shell;

providing a coaxial cable having 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 main metal shell with the exposed outer conductor layer of the coaxial cable; and

providing a secondary metal shell, wherein the secondary metal shell is provided with a shielding structure, so that the secondary metal shell is buckled with the main metal shell and is used for overlapping the shielding structure with the external conductor layer exposed by the coaxial cable, so that the shielding structure and the external conductor layer exposed by the coaxial cable form a shielding loop to prevent the shielding structure from generating an antenna effect, and the shielding loop is used for shielding the joint structure joint at the core wire layer to prevent the joint structure joint at the core wire layer from generating wave leakage.

Technical Field

The invention provides an RF coaxial jumper, a wire end connector and an assembling method thereof, and particularly relates to an RF coaxial jumper capable of transmitting millimeter wave high-frequency signals in a frequency domain of 28-45 GHz and even in a frequency domain higher than 45GHz, a wire end connector and an assembling method thereof.

Background

The ultra-thin coaxial connector product has been produced for more than 20 years, and is light, thin, short and superior in signal transmission function, and can completely meet the requirement of high-frequency signal transmission in a frequency domain of 0-6 GHz, so that the ultra-thin coaxial connector product is widely applied to mobile communication products.

Generally, the micro coaxial connector is roughly classified into a board-side connector and a cable-side connector, and when the micro coaxial connector is used, the cable-side connector is connected to a coaxial cable to form an RF coaxial jumper, and the cable-side connector at the end of the RF coaxial jumper is further engaged with the board-side connector to transmit a coaxial signal.

However, the conventional RF coaxial jumper in the market has a wave leakage problem in structural design and an antenna effect problem in a partial shielding region when being combined with a coaxial cable, so that the transmission capability of the conventional line end connector for high-frequency signals can only meet the transmission of high-frequency signals below a 10GHz frequency domain, and thus, although the transmission capability of the conventional line end connector can meet the communication requirement of 4G, the transmission capability of the conventional line end connector for millimeter-wave high-frequency signals in a frequency domain of 28-45 GHz for 5G communication is still insufficient.

With the advent of the 5G communication era, how to provide an RF coaxial jumper wire capable of responding to the frequency domain of 28GHz to 45GHz and even above 45GHz required by 5G communication has become an objective of pursuing efforts by those skilled in the art.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention provides a wire end connector for connecting coaxial cables, which have exposed core wire layer and outer conductor layer. The line end connector includes: the cable comprises a central conductor, an insulating colloid, a main metal shell and a secondary metal shell. The center conductor has a bonding structure for bonding exposed core wire layers of the coaxial cable. The insulating glue is combined with the central conductor and exposes the joint structure, so that the joint structure can be jointed with the exposed core wire layer of the coaxial cable. The main metal shell is embedded with the insulating colloid and is provided with a main metal shell lapping structure, and the main metal shell lapping structure is used for lapping an exposed outer conductor layer of the coaxial cable. The secondary metal shell is buckled with the main metal shell and is provided with a shielding structure, the shielding structure extends to the position near the joint structure joint core wire layer and is provided with a secondary metal shell lapping part, the secondary metal shell lapping part can lap the exposed external conductor layer of the coaxial cable, so that the shielding structure and the exposed external conductor layer of the coaxial cable form a shielding loop, the shielding structure is prevented from generating an antenna effect, the joint structure joint core wire layer is shielded through the shielding loop, and the joint structure joint core wire layer is prevented from generating wave leakage.

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

Preferably, in the terminal connector of the present invention, the shielding structure further extends to the vicinity of the exposed core wire layer of the coaxial cable, and the shielding is provided to the exposed core wire layer of the coaxial cable by the shielding loop.

Preferably, in the cable end connector of the present invention, the front end of the main metal shell has a main metal shell front end fastening structure, the front end of the secondary metal shell has a secondary metal shell front end fastening structure, and the main metal shell front end fastening structure and the secondary metal shell front end fastening structure are structures that are matched with each other, so that the fastening of the front ends of the secondary metal shell and the main metal shell is completed.

Preferably, in the cable end connector of the present invention, the rear end of the main metal shell has a main metal shell rear end fastening structure, the rear end of the secondary metal shell has a secondary metal shell rear end fastening structure, and the main metal shell rear end fastening structure and the secondary metal shell rear end fastening structure are structures that are matched with each other, so that the fastening of the rear ends of the secondary metal shell and the main metal shell is completed.

In addition, the present invention also provides an RF coaxial jumper, comprising: coaxial cable and terminal connector. The wire end connector comprises: the cable comprises a central conductor, an insulating colloid, a main metal shell and a secondary metal shell. The coaxial cable has an exposed core wire layer and an outer conductor layer. The center conductor has a junction structure. The insulating glue is combined with the central conductor and exposes the joint structure, so that the joint structure can be jointed with the exposed core wire layer of the coaxial cable. The main metal shell is embedded with the insulating colloid and is lapped with the exposed outer conductor layer of the coaxial cable. The secondary metal shell is buckled with the main metal shell and is provided with a shielding structure, the shielding structure extends to the position near the joint structure joint core wire layer, and is overlapped with the exposed external conductor layer of the coaxial cable, so that the shielding structure and the exposed external conductor layer form a shielding loop to avoid the antenna effect of the shielding structure, and the joint structure joint core wire layer is shielded through the shielding loop to avoid the wave leakage at the joint structure joint core wire layer.

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

Furthermore, the invention also provides an RF coaxial jumper wire assembling method, which comprises the following steps: providing a central conductor and an insulating colloid, and combining the insulating colloid with the central conductor, wherein the central conductor is provided with a joint structure, and the insulating colloid exposes out of the joint structure; providing a main metal shell, and embedding an insulating colloid in the main metal shell; providing a coaxial cable having 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 main metal shell with the exposed outer conductor layer of the coaxial cable; and providing a secondary metal shell, wherein the secondary metal shell is provided with a shielding structure, the secondary metal shell is buckled with the main metal shell, the shielding structure is lapped with the exposed outer conductor layer of the coaxial cable, the shielding structure and the exposed outer conductor layer of the coaxial cable form a shielding loop to prevent the shielding structure from generating an antenna effect, and the shielding loop is used for shielding the joint core wire layer of the joint structure to prevent the joint core wire layer of the joint structure from generating wave leakage.

Compared with the prior art, the RF coaxial jumper wire, the terminal connector and the assembling method thereof provide the shielding structure at the position where the terminal connector is jointed with the core wire layer of the coaxial cable through the structural matching of the two buckled metal shells, so as to prevent the wave leakage at the position where the terminal connector is jointed with the core wire layer of the coaxial cable, and the shielding structure is lapped with the exposed outer conductor layer of the coaxial cable to form a shielding loop so as to prevent the shielding structure from generating an antenna effect, so that the RF coaxial jumper wire can transmit millimeter wave high-frequency signals in a frequency domain of 28-45 GHz or even higher than the frequency domain of 45GHz, and can meet the transmission of millimeter wave high-frequency signals of 5G communication.

Drawings

Fig. 1 to 14 are schematic assembly views of an RF coaxial jumper and a terminal connector thereof according to a first embodiment of the present invention.

Fig. 15 to 26 are assembly views of an RF coaxial jumper and its terminal connector according to a second embodiment of the present invention.

1 RF coaxial jumper

11 coaxial cable

111 core wire layer

112 outer conductor layer

12 wire end connector

121 center conductor

1211 coupling structure

122 insulating colloid

123 main metal shell

1231 main metal casing lapping structure

Front end buckling structure of 1232 main metal shell

Rear end buckling structure of 1233 main metal shell

124 times metal shell

1241 Shielding Structure

12411 times metal case lap joint part

1242-time metal shell front end buckling structure

1243-time metal shell rear end buckling structure

1244 crimping structure

L-shaped shielding loop

Where the P center conductor joins the core layer of the coaxial cable

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the description herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways. Various modifications and alterations may be made in the details of this description without departing from the spirit of the invention, from its aspects and applications.

The present invention provides an RF coaxial jumper, a terminal connector thereof and an assembling method thereof, and refer to fig. 1 to 26 for technical disclosure of the present invention. In the present invention, the RF coaxial jumper is used for transmitting radio frequency signals, and mainly includes: coaxial cable and terminal connector.

For the assembling method of the RF coaxial patch cord of the present invention, as shown in fig. 1 and fig. 15, first, 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 a positioning for the central conductor 121, wherein the combination of the central conductor 121 and the insulating colloid 122 can be achieved by an assembling method or a flush-type injection method.

As shown in fig. 5 and 19, the central conductor 121 has a joint structure 1211, and the insulating encapsulant 122 combined with the central conductor 121 can expose the joint structure 1211 for providing a subsequent joint.

Next, as shown in fig. 2 to 4 and 16 to 18, a main metal housing 123 for embedding the insulating colloid 122 is provided. As shown in fig. 5 and 19, a coaxial cable 11 having an exposed core wire layer 111 and an outer conductor layer 112 is provided, in which the core wire layer 111 is used for transmitting a high-frequency signal and the outer conductor layer 112 is used for transmitting a shielding signal. Then, as shown in fig. 6 and 20, at the position where the joint structure 1211 is exposed out of the insulating colloid 122, the joint structure 1211 is joined to the exposed core wire layer 111 of the coaxial cable 11 by, for example, a welding method, so that the high-frequency signal of the core wire layer 111 of the coaxial cable 11 is transmitted to the central conductor 121.

In addition, in the present invention, the main metal shell 123 may also overlap the exposed outer conductor layer 112 of the coaxial cable 11, for example, as shown in fig. 7 and 21, the main metal shell 123 has a main metal shell overlapping structure 1231 for overlapping the exposed outer conductor layer 112 of the coaxial cable 11 by an electrical overlapping manner such as resistance welding or riveting, so that the shielding signal of the outer conductor layer 112 of the coaxial cable 11 is transmitted to the main metal shell 123.

Next, providing the secondary metal shell 124 with the shielding structure 1241, so that the secondary metal shell 124 is fastened to the primary metal shell 123, and the secondary metal shell 124 is overlapped with the primary metal shell 123, so that the shielding signal of the primary metal shell 123 is transmitted to the secondary metal shell 124 to form the shielding loop L shown in fig. 13. For the engagement between the secondary metal shell 124 and the main metal shell 123, as shown in fig. 11 and 25, the front end of the main metal shell 123 has a main metal shell front end engagement structure 1232, and correspondingly, the front end of the secondary metal shell 124 has a secondary metal shell front end engagement structure 1242, it should be noted that the main metal shell front end engagement structure 1232 and the secondary metal shell front end engagement structure 1242 are mutually engaged structures, so that the engagement between the front ends of the secondary metal shell 124 and the main metal shell 123 can be accomplished by, for example, a riveting method.

Preferably, as shown in fig. 11 and 25, the rear end of the main metal shell 123 has a main metal shell rear end fastening structure 1233, and correspondingly, the rear end of the secondary metal shell 124 has a secondary metal shell rear end fastening structure 1243, it should be noted that the main metal shell rear end fastening structure 1233 and the secondary metal shell rear end fastening structure 1243 are mutually matched structures, so that the fastening of the rear ends of the secondary metal shell 124 and the main metal shell 123 can be completed by, for example, a riveting method.

Then, as shown in fig. 13 to 14 and 22 to 25, the shielding structure 1241 is, for example, an L-shaped extension piece extending from the body of the secondary metal shell 124, and the shielding structure 1241 may be extended to the vicinity of the position P where the joint structure 1211 is jointed with the core wire layer 111 by bending the shielding structure 1241, for example, to provide shielding. As shown in fig. 8 to 11 and fig. 22 to 26, the shielding structure 1241 further has a sub-metal housing overlapping portion 12411, wherein the sub-metal housing overlapping portion 12411 extends from the body of the shielding structure 1241 to the exposed outer conductor layer 112 of the coaxial cable 11 for overlapping 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, and thus, the shielding signal of the outer conductor layer 112 of the coaxial cable 11 is 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 to avoid the antenna effect generated by the shielding structure 1241, thereby solving the problem that a part of the shielding area of the conventional cable end connector generates the antenna effect when being combined with the coaxial cable.

In addition, the shielding loop L can also provide three-dimensional shielding for the joint structure 1211 of the central conductor 121 at the joint position P with the core wire layer 111 in a plurality of orientations in three-dimensional space so as to avoid wave leakage generated at the joint position P with the core wire layer 111 by the joint structure 1211, therefore, the RF coaxial jumper wire 1 can transmit millimeter wave high-frequency signals in the frequency domain of 28-45 GHz and even higher than 45GHz, and millimeter wave high-frequency signal transmission of 5G communication is met. Preferably, in the present invention, the shielding structure 1241 may also extend to the vicinity of the exposed core wire layer 111 of the coaxial cable 11, so that the shielding loop L provides shielding for the exposed core wire layer 111 of the coaxial cable 11 to prevent the high-frequency signal transmission of the exposed core wire layer 111 of the coaxial cable 11 from being affected.

Preferably, as shown in fig. 11, the secondary metal shell 124 further has a crimping structure 1244, such as a sheet shape, and the crimping structure 1244 provides a crimping to the secondary metal shell overlapping part 12411, so that the secondary metal shell overlapping part 12411 electrically contacts 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 the shielding loop L.

In summary, according to the RF coaxial jumper, the terminal connector and the assembling method thereof of the present invention, the two buckled metal shells are matched to each other, so that the shielding structure of at least one of the two buckled metal shells can overlap the exposed outer conductor layer of the coaxial cable to form a shielding loop, so as to prevent the shielding structure from generating an antenna effect, and the shielding loop shields the position where the terminal connector is joined to the core layer of the coaxial cable, so as to prevent the terminal connector from generating a wave leakage at the position where the terminal connector is joined to the core layer of the coaxial cable, and therefore, the RF coaxial jumper of the present invention can transmit millimeter wave high frequency signals in a frequency domain of 28 to 45GHz, even higher than 45GHz, so as to satisfy the transmission of millimeter wave high frequency signals of 5G communication.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Those skilled in the art may make modifications and variations to the above-described embodiments without departing from the spirit and scope of the present invention. Accordingly, the scope of the invention should be determined from the following claims.