CN112927842A

CN112927842A - Transmission line and manufacturing process

Info

Publication number: CN112927842A
Application number: CN202110227839.9A
Authority: CN
Inventors: 朱寿平; 肖国良; 杨长春; 钟先梁
Original assignee: Guangdong Quanjie Technology Co Ltd
Current assignee: Guangdong Quanjie Technology Co Ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-06-08

Abstract

The invention discloses a transmission line and a manufacturing process, which comprises a cable body, a metal support ring, a conducting ring and a connecting end, wherein the cable body comprises a conductor layer, a braided layer and a sheath which are sequentially sleeved from inside to outside, the metal support ring is sleeved on the sheath, the conducting ring is sleeved on the support ring, a clamping gap is formed between the inner side wall of the conducting ring and the outer side wall of the support ring, part of the braided layer extends from one end of the cable body and is arranged in the clamping gap, the connecting end comprises a metal shell and a pin assembly connected with the shell, the conductor layer is electrically connected with the pin assembly, and one end of the shell is sleeved on the conducting ring.

Description

Transmission line and manufacturing process

Technical Field

The invention relates to the technical field of transmission lines, in particular to a transmission line and a manufacturing process thereof.

Background

The traditional transmission line generally comprises a cable body and a connecting end arranged at one end of the cable body, wherein the cable body is sequentially sleeved with a conductor layer, a braided layer and a sheath from inside to outside, the sheath is generally made of rubber or resin materials and has certain elasticity, the braided layer can provide the effect of shielding external interference for the conductor layer, the requirement of the transmission line on shielding external signals is not high in the past, the requirement on the accuracy and the stability of signal transmission is improved along with the increasing development of science and technology, in order to enhance the overall shielding effect of the transmission line, when the cable body is butted with the connecting end, the conductor layer is required to be electrically connected with a pin component of the connecting end, the braided layer is required to be connected with a shell of the connecting end, the sheath and the shell are used for clamping and fixing, so that the braided layer is contacted with the shell, but in the using process, the crust is easy ageing for the centre gripping is not hard up, leads to the resistance improvement on the connecting path, and shielding effect descends by a wide margin.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the transmission line provided by the invention has the advantages of firm and compact connection, better signal shielding performance and accurate and stable signal transmission.

The invention also provides a manufacturing process of the transmission line, and the manufactured transmission line is firm and compact in connection, has better signal shielding performance, and is accurate and stable in signal transmission.

A transmission line according to an embodiment of a first aspect of the present invention includes: the cable comprises a cable body and a cable core, wherein the cable body comprises a conductor layer, a braid layer and a sheath which are sequentially sleeved from inside to outside; the metal support ring is sleeved on the outer skin; the conducting ring is sleeved on the supporting ring, a clamping gap is formed between the inner side wall of the conducting ring and the outer side wall of the supporting ring, and a part of the braided layer extends from one end of the cable body and is arranged in the clamping gap; the connecting end comprises a metal shell and a pin assembly connected with the shell, the conductor layer is electrically connected with the pin assembly, and one end of the shell is sleeved on the conducting ring.

The transmission line according to the embodiment of the invention has at least the following beneficial effects:

according to the transmission line, the metal support ring is annularly sleeved on the outer sheath, and the metal material has a stable characteristic and has certain toughness, so that the metal support ring is not easy to be over-stressed and shrink, and can maintain a constant perimeter for a long time, so that the conductive ring sleeved on the support ring is matched to tightly clamp the braided layer, the connection is firm and tight, the braided layer is fully contacted with the conductive ring, the internal resistance between the braided layer and the conductive ring is greatly reduced, the internal resistance is not easy to increase due to the increase of the service time, in addition, the conductive ring is firstly tightly contacted with the braided layer and then is connected with the outer shell through the annular structure, a larger conductive area is provided, the internal resistance between the braided layer and the outer shell is correspondingly reduced, and therefore the transmission line.

According to some embodiments of the present invention, the lead assembly includes a terminal shell, a lead base, and a plurality of lead bodies disposed on the lead base, the terminal shell is sleeved on the lead base, the other end of the housing is connected to the terminal shell, the conductor layer is electrically connected to the lead bodies, a potting layer is disposed in the housing, and the potting layer wraps connection positions of the conductor layer and the lead bodies.

According to some embodiments of the invention, a conductive layer is disposed between the potting layer and the housing, the terminal shell is made of a metal material, and the conductive layer is connected to the conductive ring and the terminal shell respectively.

According to some embodiments of the invention, the conductive layer is wrapped on an outer side wall of the potting layer.

According to some embodiments of the invention, the conductive layer is integrally formed with the conductive ring.

According to some embodiments of the invention, the support ring is constructed of an iron or iron alloy material; the conducting ring is made of copper material.

According to the second aspect of the invention, the manufacturing process of the transmission line comprises a cable body and a connecting end, wherein the cable body comprises a conductor layer, a braid layer and a sheath which are sequentially sleeved from inside to outside, the connecting end comprises a metal shell and a pin assembly, and the manufacturing process comprises the following steps: sleeving a metal support ring on the outer skin at one end of the cable body; turning the braided layer outwards from one end of the cable body and laying the braided layer on the support ring; connecting the pin assembly with the conductor layer of the cable body; sleeving the conducting ring on the supporting ring and clamping the braided layer paved on the supporting ring; the shell is sleeved and pressed on the conducting ring, and the shell is connected with the pin assembly.

The manufacturing process of the transmission line provided by the embodiment of the invention at least has the following beneficial effects:

the manufacturing process of the transmission line of the invention comprises the steps of sleeving a metal support ring on the sheath, outwards turning and laying the braided layer on the support ring, clamping and fixing the braided layer by using the conducting ring, because the metal material has stable characteristic and certain toughness, is not easy to strain and shrink, can maintain constant perimeter for a long time, thereby the weaving layer is tightly clamped by matching with the conducting ring sleeved on the supporting ring, the connection is firm and tight, the weaving layer is fully contacted with the conducting ring, the internal resistance between the weaving layer and the conducting ring is greatly reduced, and the internal resistance is not easy to increase due to the increase of the service time, in addition, the conductive ring is firstly in close contact with the braid and then is connected with the shell through the annular structure, a larger conductive area is provided, the internal resistance between the braid and the shell is correspondingly reduced, so that the transmission line has better signal shielding performance, and the signal transmission is accurate and stable.

According to some embodiments of the invention, the lead assembly comprises a lead base and a plurality of lead bodies disposed on the lead base; connecting the pin assembly with the conductor layer of the cable body comprises connecting the conductor layer with one end of the pin body, and injecting or extruding the conductor layer and the pin body to form an adhesive filling layer wrapping the connecting position of the conductor layer and the pin body.

According to some embodiments of the invention, the pin assembly further includes a terminal shell, the terminal shell is sleeved on the pin base, the conductive ring is sleeved on the support ring and clamps the braid laid on the support ring, the conductive layer and the conductive ring are integrally formed by casting or stamping, the conductive layer is wrapped on the outer side wall of the potting layer, the conductive layer is connected with the terminal shell, and the conductive ring clamps the braid laid on the support ring.

According to some embodiments of the invention, the support ring is formed by casting or stamping.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of a cable body of one embodiment of a transmission line according to the present invention;

FIG. 2 is a schematic structural diagram of a support ring of one embodiment of the transmission line of the present invention;

FIG. 3 is a schematic diagram of a conductive ring of one embodiment of a transmission line according to the present invention;

FIG. 4 is a schematic diagram of a connection terminal according to one embodiment of the transmission line of the present invention;

FIG. 5 is a schematic structural diagram of a glue filling layer according to an embodiment of the transmission line of the present invention;

fig. 6 is a schematic structural diagram of a conductive layer of one embodiment of a transmission line according to the present invention.

Reference numerals:

cable body 100, conductor layer 110, braid layer 120, sheath 130, support ring 200, conductive ring 300, connection tip 400, shell 410, pin assembly 420, tip shell 421, pin base 422, pin body 423, conductive layer 500, and potting compound layer 600.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the positional or orientational descriptions referred to, for example, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the positional or orientational relationships shown in the drawings and are for convenience of description and simplicity of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 6, a transmission line according to an embodiment of the first aspect of the invention includes a cable body 100, a metal support ring 200, a conductive ring 300, and a connection terminal 400, wherein the cable body 100 includes a conductive layer 110, a braided layer 120, and a sheath 130, which are sequentially sleeved from inside to outside, the metal support ring 200 is sleeved on the sheath 130, the conductive ring 300 is sleeved on the support ring 200, a clamping gap is formed between an inner sidewall of the conductive ring 300 and an outer sidewall of the support ring 200, a portion of the braided layer 120 extends from one end of the cable body 100 and is disposed in the clamping gap, the connection terminal 400 includes a metal shell 410 and a pin assembly 420 connected to the shell 410, the conductive layer 110 is electrically connected to the pin assembly 420, and one end of the shell 410 is sleeved on.

Wherein, the braid 120 is woven by aluminum-magnesium alloy wires or copper-clad steel wires, and the support ring 200 is made of iron or iron alloy materials, but not limited thereto; the conductive ring 300 is made of copper, but not limited thereto, and may be made of silver; the iron or iron alloy material has good strength, ductility and stability, and the cost is relatively low, even if the sheathed sheath 130 is aged and shrunk, the support ring 200 can maintain a ring shape for a long time, while the copper material also has good stability, and the copper material has strong conductive capability, reduces the connection resistance, and improves the shielding capability.

In the transmission line of the present invention, the metal support ring 200 is annularly sleeved on the sheath 130, and since the metal material has a stable characteristic, has a certain toughness, is not easy to be over-strained, and can maintain a constant perimeter for a long time, the conductive ring 300 sleeved on the support ring 200 is matched to tightly clamp the braid 120, the connection is firm and tight, so that the braid 120 is fully contacted with the conductive ring 300, the internal resistance between the braid 120 and the conductive ring 300 is greatly reduced, and the internal resistance is not easy to increase due to the increase of the service time, in addition, the conductive ring 300 is firstly tightly contacted with the braid 120, and then is connected with the shell 410 through the annular structure, a larger conductive area is provided, so that the internal resistance between the braid 120 and the shell 410 is correspondingly reduced, and thus the transmission line has a better signal shielding performance.

In some embodiments of the present invention, as shown in fig. 5, the pin assembly 420 includes a terminal shell 421, a pin base 422, and a plurality of pin bodies 423 disposed on the pin base 422, the terminal shell 421 is sleeved on the pin base 422, the other end of the outer shell 410 is connected to the terminal shell 421, the conductive layer 110 is electrically connected to the pin bodies 423, an encapsulating layer 600 is disposed in the outer shell 410, and the encapsulating layer 600 encapsulates the connecting positions of the conductive layer 110 and the pin bodies 423.

Offer a plurality of mounting grooves in the pin base 422, the pin body 423 one-to-one wears to establish in the mounting groove, thereby the end shell 421 cover is established and is established the notch of closed mounting groove on pin base 422, the both ends of the pin body 423 expose from the mounting groove both ends respectively separately, the one end of the pin body 423 is used for being connected with outside electronic equipment, the other end and the conductor layer 110 of the pin body 423 are connected, conductor layer 110 can comprise a plurality of wires, come mutual isolation through the insulation cover between the different wires, the wire can weld each other with the pin body 423, then set up encapsulating layer 600, can place outside aqueous vapor or gray layer and corrode hookup location, encapsulating layer 600 makes wire and pin body 423 firm in connection stable simultaneously.

In some embodiments of the present invention, as shown in fig. 4 and 6, a conductive layer 500 is disposed between the potting layer 600 and the housing 410, the terminal housing 421 is made of a metal material, the conductive layer 500 is connected to the conductive ring 300 and the terminal housing 421, the conductive layer 500 is disposed on the potting layer 600 by using the shape formed by the potting layer 600, so as to further shield intrusion of external interference signals, and the conductive layer 500 can contact with an inner wall surface of the housing 410, so as to further reduce connection internal resistance and improve overall shielding performance, specifically, the conductive layer 500 may be made of a copper or silver material, meanwhile, a conventional transmission line is in contact conductive connection with the terminal housing by using the housing 410, but is easy to loosen and has weak shielding performance, whereas in embodiments of the present invention, the conductive layer 500 is connected to the conductive ring 300 and the terminal housing 421 respectively, and the conductive layer 500 partially covers the terminal housing 421, the housing 410 further tightly presses the conductive layer 500 on the conductive ring 300 and the terminal housing 421, the conductive layer 500 is in close contact with the conductive ring 300 and the terminal housing 421 for conduction, thereby improving shielding performance.

In some embodiments of the present invention, the conductive layer 500 is wrapped on the outer sidewall of the glue filling layer 600, so that the conductive layer 500 forms a side ring, which can prevent the intrusion of external interference signals in all directions and improve the shielding capability.

In some embodiments of the present invention, the conductive layer 500 and the conductive ring 300 are integrally formed, the conductive layer 500 and the conductive ring 300 can be made of the same material, the integrally formed conductive layer 500 and the conductive ring 300 are more tightly connected, and the conductive ring 300 and the conductive layer 500 are both connected to the housing 410, so that the current-guiding path between the conductive ring 300, the conductive layer 500 and the housing 410 is greatly widened, the internal resistance is greatly reduced, and the shielding capability is further improved.

A process for fabricating a transmission line according to an embodiment of the second aspect of the present invention, as shown in fig. 1 to 4, includes: sleeving a metal support ring 200 on the outer skin 130 at one end of the cable body 100; everting the braid 120 from one end of the cable body 100 and laying it on the support ring 200; connecting the pin assembly 420 with the conductor layer 110 of the cable body 100; sleeving the conductive ring 300 on the support ring 200 and clamping the braid 120 laid on the support ring 200; the housing 410 is placed over and pressed against the conductive ring 300, connecting the housing 410 to the lead assembly 420.

The manufacturing process of the transmission line of the invention, the metal support ring 200 is sleeved on the outer skin 130, the braid 120 is turned over and laid on the support ring 200, and then is clamped and fixed by the conductive ring 300, because the metal material has stable characteristic, has certain toughness, is not easy to shrink too much, can maintain constant perimeter for a long time, thereby the braid 120 is tightly clamped by the conductive ring 300 sleeved on the support ring 200, the connection is firm and tight, the braid 120 is fully contacted with the conductive ring 300, the internal resistance between the braid 120 and the conductive ring 300 is greatly reduced, and the internal resistance is not easy to be increased because of the increase of the service time, in addition, the conductive ring 300 is tightly contacted with the braid 120 firstly, and then is connected with the shell 410 through the annular structure, a larger conductive area is provided, the internal resistance between the braid 120 and the shell 410 is also correspondingly reduced, thereby the transmission line has better, the signal transmission is accurate and stable.

In some embodiments of the present invention, as shown in fig. 5, the lead assembly 420 includes a lead base 422 and a plurality of lead bodies 423 disposed on the lead base 422; connecting the pin assembly 420 with the conductor layer 110 of the cable body 100 includes connecting the conductor layer 110 with one end of the pin body 423, and forming the potting layer 600 wrapping the connecting position of the conductor layer 110 and the pin body 423 by injection molding or extrusion at the connecting position of the conductor layer 110 and the pin body 423, wherein the potting layer 600 may be resin or rubber, and after the pin body 423 and the conductor layer 110 are welded, the potting layer 600 is placed into an injection mold or a stamping mold to be injection molded or extrusion molded.

In some embodiments of the present invention, as shown in fig. 6, the pin assembly 420 further includes a terminal shell 421, the terminal shell 421 is sleeved on the pin seat 422, the conductive ring 300 is sleeved on the support ring 200 and clamps the braid 120 laid on the support ring 200, the conductive layer 500 and the conductive ring 300 are integrally formed by casting or stamping, the conductive layer 500 is wrapped on the outer sidewall of the potting layer 600, the conductive layer 500 is connected to the terminal shell 421, the conductive ring 300 clamps the braid 120 laid on the support ring 200, the shell 410 can be welded or fastened to the terminal shell 421, the conductive layer 500 is also connected to the terminal shell 421, and the conductive layer 500 can also be in contact with the shell 410, so as to greatly widen the flow guiding path among the terminal shell 421, the conductive ring 300, the conductive layer 500, and the shell 410, so that the internal resistance is greatly reduced, and the shielding capability is further improved.

In some embodiments of the present invention, the support ring 200 is formed by casting or stamping, for example, in the stamped embodiment, the support ring 200 may be stamped into a ring on the outer skin 130 by a metal strip, so that the support ring 200 is tightly sleeved on the outer skin 130 and is not easy to fall off.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A transmission line, comprising:

the cable comprises a cable body and a cable core, wherein the cable body comprises a conductor layer, a braid layer and a sheath which are sequentially sleeved from inside to outside; the metal support ring is sleeved on the outer skin;

the conducting ring is sleeved on the supporting ring, a clamping gap is formed between the inner side wall of the conducting ring and the outer side wall of the supporting ring, and a part of the braided layer extends from one end of the cable body and is arranged in the clamping gap;

the connecting end comprises a metal shell and a pin assembly connected with the shell, the conductor layer is electrically connected with the pin assembly, and one end of the shell is sleeved on the conducting ring.

2. A transmission line according to claim 1, characterized in that: the pin assembly comprises an end shell, a pin base and a plurality of pin bodies arranged on the pin base, wherein the end shell is sleeved on the pin base, the other end of the shell is connected with the end shell, the conductor layer is electrically connected with the pin bodies, an encapsulating layer is arranged in the shell, and the encapsulating layer wraps the connecting positions of the conductor layer and the pin bodies.

3. A transmission line according to claim 2, characterized in that: a conducting layer is arranged between the glue filling layer and the shell, the end shell is made of metal materials, and the conducting layer is respectively connected with the conducting ring and the end shell.

4. A transmission line according to claim 3, characterized in that: the conducting layer wraps the outer side wall of the glue filling layer.

5. A transmission line according to claim 3 or 4, characterized in that: the conductive layer and the conductive ring are integrally formed.

6. A transmission line according to claim 1, characterized in that: the support ring is made of iron or iron alloy material; the conducting ring is made of copper material.

7. The utility model provides a manufacturing process of transmission line, includes cable body and connection end, and the cable body includes from interior to conductor layer, weaving layer and the crust that the cover was established in proper order outward, connects the end and includes the shell and the pin subassembly of metal, its characterized in that includes:

sleeving a metal support ring on the outer skin at one end of the cable body;

turning the braided layer outwards from one end of the cable body and laying the braided layer on the support ring;

connecting the pin assembly with the conductor layer of the cable body;

sleeving the conducting ring on the supporting ring and clamping the braided layer paved on the supporting ring; the shell is sleeved and pressed on the conducting ring, and the shell is connected with the pin assembly.

8. The process of claim 7, wherein: the pin assembly comprises a pin seat and a plurality of pin bodies arranged on the pin seat; connecting the pin assembly with the conductor layer of the cable body comprises connecting the conductor layer with one end of the pin body, and injecting or extruding the conductor layer and the pin body to form an adhesive filling layer wrapping the connecting position of the conductor layer and the pin body.

9. The process of claim 8, wherein: the pin assembly further comprises a terminal shell, the terminal shell is sleeved on the pin base, the conducting ring is sleeved on the support ring, the weaving layer clamped and laid on the support ring comprises a conducting layer and a conducting ring which are integrally formed through casting or stamping, the conducting layer is wrapped on the outer side wall of the glue pouring layer, the conducting layer is connected with the terminal shell, and the weaving layer clamped and laid on the support ring is arranged on the conducting ring.

10. The process of claim 7, wherein: the support ring is formed by casting or stamping.