CN109950709B - Connection assembly and connection method for coaxial cable and coaxial cable system - Google Patents

Abstract

The invention relates to a docking assembly for coaxial cables. The coaxial cable includes a coaxial first cable and a second cable arranged at intervals. The docking assembly includes a crimping tube, a first protective structure, a conductive connector and a The second protective structure. The inner cores of the first cable and the second cable can be coaxially connected together through a crimping tube, and the outer cores of the first cable and the second cable are connected together through a conductive connector, and the conductive connector is sleeved on the first protective structure. . The outer cores of the first cable and the second cable can be respectively arranged around the conductive connector on the outside of the conductive connector. Compared with the traditional twisting of the inner core and the outer core into two bundles, the connection point is effectively reduced. 's body shape. The inner core and the outer core do not need to be bifurcated, which reduces the difficulty of protective treatment, thereby avoiding the situation that the waterproof performance of the joint is low and easy to cause failure due to improper handling. The invention also relates to a docking method for coaxial cables and a coaxial cable system.

Description

Connection assembly for coaxial cable, connection method and coaxial cable system

technical field

The present invention relates to the technical field of high-voltage cable maintenance, in particular to a connecting assembly for coaxial cables, a connecting method and a coaxial cable system.

Background technique

High-voltage cables have a certain service life. With the increase of operating years, the failure rate of high-voltage cables will increase. For the coaxial cable, the coaxial cable is drawn from the middle joint of the high-voltage cable, and the middle joint of the high-voltage cable is not allowed to be disassembled because of the waterproof seal. Therefore, when the coaxial cable fails, the entire coaxial cable cannot be replaced. , only the faulty segment can be removed, and a new coaxial cable can be reconnected. However, the existing old and new coaxial cables have relatively high operation requirements, and it is easy to cause a failure due to improper handling, which will lead to low waterproof performance of the connection.

SUMMARY OF THE INVENTION

Based on this, it is necessary to meet the high operational requirements of the existing coaxial cable connection, which is prone to the problem of low waterproof performance and easy failure of the connection due to improper handling. Operational difficulty of cable docking A docking assembly for a coaxial cable and a docking method and a coaxial cable system.

A docking assembly for a coaxial cable, the coaxial cable includes a first cable and a second cable that are coaxially and spaced apart, and the docking assembly for the coaxial cable includes:

The crimping tube is arranged along the longitudinal direction of the coaxial cable, and the two ends of the crimping tube are respectively used for the inner core of the first cable and the inner core of the second cable to extend into, so that the The inner core of the first cable and the inner core of the second cable are fixed relative to the crimping tube;

The first protective structure is arranged along the longitudinal direction of the coaxial cable and covers the crimping tube, and the inner core of the first cable and the inner core of the second cable are located outside the crimping tube part;

a conductive connector sleeved on the first protective structure, and the outer cores of the first cable and the second cable are relatively fixedly wrapped around the conductive connector;

The second protective structure is disposed along the longitudinal direction of the coaxial cable, and covers the conductive connector and the outer cores of the first cable and the second cable.

By arranging the above-mentioned docking assembly for coaxial cables, the inner cores of the first cable and the second cable can be coaxially connected together through a crimp tube, and the outer cores of the first cable and the second cable can be connected to each other through a conductive connector. Together, the conductive connector is sleeved on the first protective structure. In this way, the outer cores of the first cable and the second cable can be respectively arranged around the conductive connecting piece on the outer side of the conductive connecting piece, so that the inner core and the outer core at the docking place are still coaxial. It is twisted into two bundles with the outer core, which effectively reduces the shape of the connection. At the same time, the inner core and the outer core are separated by the first protective structure, the outer core and the external environment are separated by the second protective structure, and neither the inner core nor the outer core need to be bifurcated, which facilitates the protection of the joint. The treatment reduces the difficulty of protective treatment, thereby avoiding the situation that the waterproof performance of the joint is low and easy to cause failure due to improper treatment.

In one of the embodiments, the docking assembly further includes a locking member, the locking member is located between the conductive connecting member and the second protective structure, and is wound around the crimping tube in the circumferential direction of the A side of the conductive connecting piece facing away from the first protective structure, and the locking piece is used for locking the outer cores of the first cable and the second electrical cable to the conductive connecting piece respectively.

In one embodiment, the locking member is a locking copper wire.

In one embodiment, the conductive connector has opposite first ends and second ends along the circumferential direction of the crimping tube, and a predetermined gap is spaced between the first end and the second end. .

In one embodiment, the length of the conductive connector along the lengthwise direction of the coaxial cable is less than the length of the crimp tube along the lengthwise direction of the coaxial cable.

A method for connecting coaxial cables, comprising the following steps:

Passing the first cable or the second cable through the conductive connector, and one end of the first cable or the second cable protrudes from the conductive connector;

Performing a wire-opening process on the first cable and the second cable respectively, so that the inner cores of the first cable and the second cable are exposed for a predetermined length;

The inner cores of the first cable and the second cable are coaxially arranged, and are respectively fixedly connected to the inner cores of the first cable and the second cable through a crimping tube;

A first protective structure is formed on the outside of the crimping pipe;

moving the conductive connector onto the first protective structure;

the outer cores of the first cable and the second cable are relatively fixedly covered on the conductive connector;

A second protective structure is formed on the outer side of the conductive connector.

In one embodiment, a side surface of the conductive connector facing away from the first protective structure has a first area and a second area opposite along the longitudinal direction of the coaxial cable;

The outer core of the first cable is relatively fixedly covered on the first area of the conductive connector, and the outer cores of the first cable are evenly spaced along the circumferential direction of the crimping tube;

The outer core of the second cable is relatively fixedly covered on the second area of the conductive connector, and the outer cores of the second cable are evenly spaced along the circumferential direction of the crimping tube.

In one embodiment, the step of relatively and fixedly wrapping the outer cores of the first cable and the second cable on the conductive connector further includes the steps of:

The outer cores of the first cable and the second cable are respectively locked to the conductive connecting member by the locking member;

The locking member, the conductive connecting member and the outer cores of the first cable and the second cable are fixedly connected together by lead welding.

In one of the embodiments, the predetermined length is 40 mm to 60 mm.

A coaxial cable system, characterized in that it includes a first cable, a second cable, and the docking assembly for coaxial cables described in the above embodiments, and one end of the docking assembly is fixedly connected to the first cable. The other end of the cable is fixedly connected to the second cable.

Description of drawings

1 is a schematic structural diagram of a docking assembly for a coaxial cable according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view at A-A of the docking assembly shown in FIG. 1;

FIG. 3 is a flowchart of a method for docking a coaxial cable according to an embodiment of the present invention.

Detailed ways

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

In order to facilitate the understanding of the technical solution of the present invention, the problems existing in the existing coaxial cable connection method are described here: when the existing coaxial cable fails, the inner core and the outer core of the old and new cables are usually directly connected to each other. Twist into a bundle to connect together, and then the two bundles are crimped through two copper crimping tubes, and then directly wrap the surface of the two copper crimping tubes with insulating tape, water blocking tape and PVC tape. This connection leads to an increase in the size of the connection, and the inner core and outer core of the cable are bifurcated and then twisted together. There are bifurcations between the inner core and the outer core at both ends of the old and new coaxial cables. , the protective treatment at these bifurcations is more complicated, and the treatment requirements are high. If the treatment is not good, the waterproof performance of the joint will be low, which is easy to cause failure.

As shown in FIG. 1 and FIG. 2 , a docking assembly 10 for coaxial cables provided by an embodiment of the present invention is used for maintenance of coaxial cables. Specifically, the coaxial cable includes a first cable and a second cable that are coaxially and spaced apart, and the docking assembly 10 for a coaxial cable is used for docking between the first cable and the second cable.

The docking assembly 10 for coaxial cables includes a crimping tube 12 , a first protective structure 14 , a conductive connector 16 and a second protective structure 18 .

The crimping tube 12 is arranged along the longitudinal direction of the coaxial cable, and the two ends of the crimping tube 12 are respectively used for the inner core 40 of the first cable 20 and the inner core 40 of the second cable 30 to be inserted, so that the The inner core 40 and the inner core 40 of the second cable 30 are fixed relative to the crimp tube 12 . The first protective structure 14 is disposed along the longitudinal direction of the coaxial cable, and covers the crimping tube 12 and the portion of the inner core 40 of the first cable 20 and the inner core 40 of the second cable 30 located outside the crimping tube 12 .

The conductive connector 16 is sleeved on the first protective structure 14 , and the outer cores 50 of the first cable 20 and the second cable 30 are relatively fixedly wrapped around the conductive connector 16 . The second protective structure 18 is disposed along the longitudinal direction of the coaxial cable, and covers the conductive connector 16 and the outer core of the first cable 20 and the outer core 50 of the second cable 30 .

By arranging the above-mentioned docking assembly for coaxial cables, the inner cores 40 of the first cable 20 and the second cable 30 can be coaxially connected together through the crimp tube 12 , and the outer cores of the first cable 20 and the second cable 30 can be connected together coaxially. 50 are connected together by the conductive connector 16 , and the conductive connector 16 is sleeved on the first protective structure 14 . In this way, the outer cores 50 of the first cable 20 and the second cable 30 can be respectively arranged around the conductive connecting member 16 on the outer side of the conductive connecting member 16, so that the inner core 40 and the outer core 50 at the docking place are still coaxial. Compared with the traditional method of twisting the inner core 40 and the outer core 50 into two bundles, the shape of the connection is effectively reduced. At the same time, the inner core 40 and the outer core 50 are separated by the first protective structure 14 , the outer core 50 is separated from the external environment by the second protective structure 18 , and neither the inner core 40 nor the outer core 50 is bifurcated. , which facilitates the protective treatment at the joint and reduces the difficulty of the protective treatment, thereby avoiding the situation that the waterproof performance of the joint is low and easy to cause failure due to improper handling.

It should be noted that the first cable 20 and the second cable 30 are two sections of cables formed after the old cable is cut off. The coaxial cable includes an inner core 40, an inner insulating layer, an outer core 50 and an outer insulating layer in sequence from the inside to the outside. Therefore, the cable needs to be opened before connecting the inner core 40 to expose the inner core 40 . In practical applications, the exposed length of the inner core 40 along the longitudinal direction of the coaxial cable is 40 mm to 60 mm. Preferably, the exposed length of the inner core 40 along the longitudinal direction of the coaxial cable is 50 mm.

At the same time, for the coaxial cable transporting high voltage, the number of inner cores 40 in each coaxial cable may be multiple, so when using the crimp tube 12 to connect the inner cores 40 of the first cable 20 and the second cable 30 The corresponding inner cores 40 are coaxially arranged and then crimped.

In addition, for the labels of the inner core 40 and the outer core 50 in FIG. 1 , since the first cable 20 and the second cable 30 are substantially two sections formed by cutting a part of the same coaxial cable, the first cable 20 and the second cable The same reference numerals are used for the inner core 40 and the outer core 50 of the cable 30 .

In some embodiments, the crimp tube 12 is a copper tube, so that the inner core 40 of the first cable 20 and the inner core 40 of the second cable 30 are electrically connected through the crimp tube 12 . Further, the length of the crimping tube 12 along the longitudinal direction of the coaxial cable is smaller than the sum of the exposed lengths of the inner cores 40 of the first cable 20 and the second cable 30, that is to say, the crimping tube 12 crimps the first cable 20 and the second cable 30. The inner core 40 of the two cables 30 , even if the inner core 40 of the first cable 20 and the inner core 40 of the second cable 30 abut in the crimping tube 12 , it is only necessary to ensure that the middle position of the crimping tube 12 is between the first cable 20 and the second cable 30 . The abutting position of the inner core 40 can prevent the two ends of the crimping tube 12 from extending to the inner insulating layer of the first cable 20 or the second cable 30 .

In practical applications, the outer diameter of the crimp tube 12 is smaller than the radial dimension of the inner insulating layer of the first cable 20 or the second cable 30 . In this way, when the first protective structure 14 is arranged on the outer side of the crimping pipe 12 , an excessively large bulge will not be formed at the crimping pipe 12 . It should be noted that, since the crimp tube 12 is also conductive, and the crimp tube 12 does not cover all the exposed inner cores 40, in order to ensure that all the inner cores 40 and the crimp tube 12 are insulated, the first protective structure 14 Both ends need to extend to the inner insulating layers of the first cable 20 and the second cable 30 , that is to say, the first protective structure 14 covers the part of the inner core 40 located outside the crimp tube 12 .

In some embodiments, the first protective structure 14 includes an insulating layer, a waterproof layer, a fireproof layer and a plastic layer in sequence from the inside to the outside, so as to ensure that the crimping tube 12 and the exposed inner core 40 are completely isolated from the outside world, that is, the outer core is realized The insulation between 50 and the inner core 40 also prevents the influence of the external environment on the inner core 40 . Further, the insulating layer is an insulating tape, the waterproof layer is a waterproof tape, the fireproof layer is a fireproof tape, and the plastic layer is a PVC tape, and the insulating tape is laid from the inner insulating layer of the first cable 20 to the inside of the second cable 30. Insulation layer, while the other layers of tape test in turn cover the insulation tape.

In practical applications, the tapes of each layer are lapped and wrapped according to one-half. Taking the wrapping of insulating tape on the crimping tube 12 as an example, the insulating tape is wound around the crimping tube 12 and then cut off, and then continue to be placed on the crimp tube 12. The crimping tube 12 is wound around, and one side edge of the insulating tape of the latter circle is located in the middle position of the insulating tape of the former circle. In this way, the inner insulation layer of the first cable 20 extends from the inner insulation layer of the second cable 30 to the inner insulation layer of the second cable 30 in a circle.

In some embodiments, the conductive connector 16 has opposite first ends and second ends along the circumferential direction of the crimp tube 12 , and a predetermined gap is spaced between the first end and the second end. Although the conductive connector 16 is sleeved on the outer side of the first protective layer, the conductive connector 16 completely surrounds the first protective layer, that is to say, if the first protective layer is annular, the conductive connector 16 is not a complete A ring structure, but a ring structure with a fracture. In this way, it is effectively avoided that after the connection is completed and powered on, the conductive connector 16 forms an eddy current, thereby avoiding energy loss and the risk of high temperature caused by the eddy current. At the same time, compared with the original method of twisting the outer cores 50 of the old and new cables into a bundle, the contact area is effectively increased, and it is not easy to generate heat, which further reduces the risk of high temperature and improves the reliability.

Further, the preset gap is at least greater than 2 mm. Of course, the preset gap can be determined according to the energized voltage in the cable, and if the preset gap is too small, eddy currents of the conductive connecting member 16 will be formed. Specifically, the cross-sectional shape of the conductive connecting member 16 perpendicular to the longitudinal direction of the coaxial cable is an arc shape. Here, the longitudinal direction of the coaxial cable is the vertical direction shown in FIG. 1 .

In some embodiments, the outer diameter of the conductive connector 16 is smaller than the radial dimension of the outer insulating layer of the first cable 20 (or the second cable 30 ), so as to ensure that the outer core 50 is wrapped around the outer side of the conductive connector 16 , That is, after the outer core 50 is wrapped on the side of the conductive connector 16 away from the first protection structure 14, the shape of the outer core 50 will not change too much.

In some embodiments, the docking assembly further includes a locking member 11 , the locking member 11 is located between the conductive connecting member 16 and the second protective structure 18 , and is located between the outer core 50 and the second protective structure 11 , which are coated on the conductive connecting member 16 . Between the protective structures 18 , the locking member 11 is wound around the outer side of the conductive connecting member 16 along the circumferential direction of the crimping tube 12 for locking the outer cores 50 of the first cable 20 and the second cable 30 to the conductive connecting member 16 respectively. .

Specifically, the locking member 11 is a locking copper wire. After wrapping the outer core 50 on the conductive connector 16 , the outer core 50 is wrapped with a locking copper wire to lock the outer core 50 on the first side and the second side of the conductive connector 16 . Due to the small cross-sectional area of the copper wire, the eddy currents generated are small, and the resulting energy loss is also very small.

In some embodiments, the docking assembly further includes a fixing layer 13 . The fixing layer 13 is located between the conductive connecting member 16 and the second protective structure 18 and is disposed along the circumferential direction of the crimping tube 12 for fixing the locking member 11 , the conductive connector 16 and the outer core 50 of the first cable 20 and the second cable 30 are fixed together, so that the outer core 50 of the first cable 20 and the second cable 30 is fixed relative to the conductive connector 16 . Further, the fixed layer 13 is a lead layer, and the cross-sectional shape of the lead layer along the longitudinal direction perpendicular to the coaxial cable is also an arc shape, so as to avoid the formation of eddy currents. Specifically, after the outer core 50 is locked on the conductive connector 16 by the locking copper wire, a lead layer is formed by conducting lead welding on the outer side of the conductive connector 16, and the locking copper wire, the outer core 50 and the conductive connection are connected Pieces 16 are fastened together.

In some embodiments, the length of the conductive connector 16 along the lengthwise direction of the coaxial cable is less than the length of the crimp tube 12 along the lengthwise direction of the coaxial cable. The conductive connector 16 is used to connect the outer core 50 of the first cable 20 and the second cable 30, and the outer core 50 is fixed on the conductive connector 16 through the locking member 11 and the fixing layer 13, so only the outer core needs to be connected The length of the conductive connector 16 along the longitudinal direction of the coaxial cable does not need to be too long.

Further, the side surface of the conductive connector 16 facing away from the first protective structure 14 has a first area and a second area opposite to each other along the longitudinal direction of the coaxial cable, and the outer core 50 of the first cable 20 is covered with the conductive connection. The outer core 50 of the second cable 30 is wrapped around the second area of the conductive connector 16 . Of course, the first area and the second area can be the area at the edge of the surface along the longitudinal direction of the coaxial cable, and the first area and the second area are not spaced apart; the first area and the second area can also be are each half of the surface, ie there is no space between the first area and the second area.

It can also be understood that the conductive connector 16 cannot be installed after the crimping tube 12 is crimped, and can only be inserted into the inner core 40 and the inner insulating layer of the first cable 20 or the second cable 30 before the inner core 40 is crimped. Sleeve it into the conductive connector 16 , and then perform the crimping of the inner core 40 . Since the outer diameter of the conductive connector 16 is smaller than the radial dimension of the outer insulating layer, after the inner core 40 is inserted into the conductive connector 16, the conductive connector 16 can only be placed between the outer insulating layers of the first cable 20 and the second cable 30. If the conductive connector 16 is too long, one end of the conductive connector 16 may abut against the outer insulating layer of the first cable 20 (or the second cable 30 ), and the other end may extend to the wrapping area of the first protective layer , affecting the formation of the first protective layer.

Further, the length of the conductive connector 16 along the lengthwise direction of the coaxial cable is at least half the length of the crimp tube 12 along the lengthwise direction of the coaxial cable. Of course, the length of the conductive connector 16 cannot be too short. If the length is too short, the length of the outer core 50 connected to the outer side of the conductive connector 16 is insufficient, which may cause the connection between the outer core 50 and the conductive connector 16 to be loose. Specifically, the middle position of the conductive connector 16 along the longitudinal direction of the coaxial cable coincides with the middle position of the crimping tube 12 along the longitudinal direction of the coaxial cable, so that both ends of the conductive connector 16 correspond to the crimp tube 12 Both ends are the same distance.

In some embodiments, the second protective structure 18 includes an insulating layer, a waterproof layer and a plastic layer in sequence from the inside to the outside to ensure that the crimping tube 12 and the exposed inner core 40 are completely isolated from the outside world, which not only achieves insulation but also prevents The influence of the external environment on the inner core 40 . Specifically, the insulating layer is insulating tape, the waterproof layer is waterproof tape, the plastic layer is PVC tape, and the insulating tape is laid from the outer insulating layer of the first cable 20 to the outer insulating layer of the second cable 30, and the other layers The tape test covers insulating tape in turn. It can be understood that the second protective structure 18 is similar to the first protective structure 14, and both are formed by wrapping the tape, so the way of overlapping and wrapping is also the same, so it is not repeated here.

Of course, the first protection structure 14 and the second protection structure 18 in the above-mentioned embodiment are not only for protection, but also for connection. Both ends of the first protection structure 14 extend to the first cable 20 and the The inner insulating layer of the second cable 30, the two ends of the second protective structure 18 extend to the outer insulating layer of the first cable 20 and the second cable 30, which not only protects but also ensures the stability of the connection.

Please refer to FIG. 3 at the same time, based on the above-mentioned docking assembly for coaxial cables, the present invention also relates to a docking method for coaxial cables, comprising the following steps:

S110 , passing the first cable 20 or the second cable 30 through the conductive connector 16 , and one end of the first cable 20 or the second cable 30 protrudes from the conductive connector 16 .

It has been explained in the above embodiment that, in order to avoid that the conductive connector 16 cannot be installed after the inner core 40 is crimped, the conductive connector 16 can only be sheathed on the first cable 20 or the second cable 30 before the inner core 40 is crimped. superior. Specifically, the end of the first cable 20 or the second cable 30 is cut open to expose the inner insulating layer, and then the conductive connector 16 is sheathed on the inner insulating layer.

S120 , performing wire-opening processing on the first cable 20 and the second cable 30 respectively, so that the inner cores 40 of the first cable 20 and the second cable 30 are exposed for a predetermined length.

Further, for the cable covered with the conductive connector 16, only the inner insulating layer needs to be slashed, while for another cable without the conductive connector 16, the entire end needs to be slashed to expose the inner core. 40. Specifically, the preset length is 40 mm to 60 mm, preferably 50 mm.

S130 , coaxially disposing the first cable 20 and the inner core 40 of the second cable 30 , and fixedly connecting them to the inner core 40 of the first cable 20 and the second cable 30 respectively through the crimping tube 12 .

S140 , forming the first protective structure 14 on the outer side of the crimping tube 12 .

Specifically, insulating tape, waterproof tape, fireproof tape and PVC tape are wound around the outside of the crimping pipe 12 in sequence to form the first protective structure 14 .

S150 , moving the conductive connector 16 onto the first protective structure 14 .

Specifically, the conductive connector 16 is moved to the middle position of the crimping tube 12 , and the distances from both ends of the conductive connector 16 to the corresponding ends of the crimping tube 12 are the same.

S160, the outer core 50 of the first cable 20 and the outer core 50 of the second cable 30 are relatively fixedly covered on the conductive connecting member 16.

Further, the outer cores 50 of the first cable 20 and the second cable 30 are evenly spaced along the circumferential direction of the crimp tube 12 on the side surface of the conductive connector 16 away from the first protective structure 14, and the first cable 20 is The outer core 50 is arranged in the first area, and the outer core 50 of the second cable 30 is arranged in the second area; the outer core 50 of the first cable 20 and the outer core 50 of the second cable 30 are respectively locked to the conductive connector 16 by the locking member 11 . Then, the locking member 11 , the conductive connecting member 16 and the outer core 50 of the first cable 20 and the second cable 30 are fixedly connected together by lead welding.

It can be understood that the conductive connector 16 is an annular structure with a fracture, so the above-mentioned evenly spaced arrangement should be understood that the outer core 50 is first arranged on the conductive connector 16, and then the outer core 50 is placed on the conductive connector 16. Evenly spaced. Of course, the spacing between the outer cores 50 may be zero.

Specifically, the outer core 50 is overlapped on the first area and the second area of the conductive connector 16 respectively, and then wrapped and locked with locking screws, and finally lead soldering is performed on the outer side of the conductive connector 16 to form a lead layer. In this way, the outer core 50 and the conductive connector 16 are stably connected together.

S170 , forming the second protection structure 18 on the outer side of the conductive connection member 16 .

Further, the second protective structure 18 covers the conductive connector 16 and the outer cores of the first cable 20 and the second cable 30 .

Specifically, the insulating tape, waterproof tape and PVC tape are wound around the outer side of the lead layer in turn, and the bottom insulating tape is extended to the outer insulating layers of the first cable 20 and the second cable 30 to connect with the first cable 20 and the second cable 30. The second cable 30 is connected and completely seals the conductive connecting member 16 , the locking member 18 , the fixing layer 19 and the outer core 50 .

By adopting the above-mentioned docking method for coaxial cables, the inner cores 40 of the first cable 20 and the second cable 30 can be coaxially connected together through the crimping tube 12 , and the outer cores of the first cable 20 and the second cable 30 can be coaxially connected together. 50 are connected together by the conductive connector 16, and the outer cores 50 of the first cable 20 and the second cable 30 can be respectively arranged around the conductive connector 16 on the outer side of the conductive connector 16. The outer cores 50 are respectively twisted into two bundles, which effectively reduces the size of the connection. At the same time, the inner core 40 and the outer core 50 do not need to be bifurcated, which facilitates the protection treatment at the joint and reduces the difficulty of protection treatment, thereby avoiding the situation that the waterproof performance of the joint is easy to be low and easy to cause failure due to improper handling. High reliability. In addition, the production time is fast by adopting the docking method, and the emergency repair time is saved.

A coaxial cable system, comprising a first cable, a second cable and the docking assembly for the coaxial cable in the above embodiment, one end of the docking assembly is fixedly connected to the first cable, and the other end is fixedly connected to the second cable , so as to realize the connection between the first cable and the second cable.

Compared with the prior art, the docking assembly for coaxial cable, the docking method and the coaxial cable system provided by the present invention have at least the following advantages:

1) The inner cores of the first cable and the second cable can be coaxially connected together by a crimping tube, and the outer cores can be connected by a substantially annular conductive connector, and the shape of the connection is small;

2) There is no bifurcation between the inner core and the outer core, which facilitates the protection treatment at the joint and reduces the difficulty of protection treatment, thus avoiding the situation that the waterproof performance of the joint is low and easy to cause failure due to improper handling, and the reliability is high. ;

3) The contact area between the outer core and the conductive connector is large, which reduces the risk of high temperature and improves reliability;

4) The production time is fast, saving the repair time.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are more specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (9)

1. A docking assembly for a coaxial cable, the coaxial cable comprising a first cable and a second cable that are coaxially and spaced apart, wherein the docking assembly for the coaxial cable comprises: The crimping tube is arranged along the longitudinal direction of the coaxial cable, and the two ends of the crimping tube are respectively used for the inner core of the first cable and the inner core of the second cable to extend into, so that the The inner core of the first cable and the inner core of the second cable are fixed relative to the crimping tube; The first protective structure is arranged along the longitudinal direction of the coaxial cable and covers the crimping tube, and the inner core of the first cable and the inner core of the second cable are located outside the crimping tube part; a conductive connector sleeved on the first protective structure, and the outer cores of the first cable and the second cable are relatively fixedly wrapped around the conductive connector; a second protective structure, disposed along the longitudinal direction of the coaxial cable, and covering the conductive connector and the outer cores of the first cable and the second cable; The conductive connector has opposite first ends and second ends along the circumferential direction of the crimping tube, and a predetermined gap is spaced between the first end and the second end. 2 . The docking assembly for coaxial cables according to claim 1 , wherein the docking assembly further comprises a locking member, and the locking member is located between the conductive connecting member and the second protective structure. 3 . between and around the crimping tube on the side of the conductive connecting piece away from the first protective structure, the locking piece is used to separate the first cable and the first protective structure. The outer cores of the two cables are locked to the conductive connector. 3. The docking assembly for coaxial cables according to claim 2, wherein the locking member is a locking copper wire. 4 . The docking assembly for coaxial cables according to claim 1 , wherein the length of the conductive connector along the longitudinal direction of the coaxial cable is smaller than that of the crimping tube along the coaxial cable. 5 . The length of the cable in the longitudinal direction. 5. a connection method for coaxial cable, is characterized in that, comprises the following steps: Passing the first cable or the second cable through the conductive connector, and one end of the first cable or the second cable protrudes from the conductive connector; Performing a wire-opening process on the first cable and the second cable respectively, so that the inner cores of the first cable and the second cable are exposed for a predetermined length; The inner cores of the first cable and the second cable are coaxially arranged, and are respectively fixedly connected to the inner cores of the first cable and the second cable through a crimping tube; A first protective structure is formed on the outside of the crimping pipe; moving the conductive connector onto the first protective structure; the outer cores of the first cable and the second cable are relatively fixedly covered on the conductive connector; forming a second protective structure on the outer side of the conductive connector; The conductive connector has opposite first ends and second ends along the circumferential direction of the crimping tube, and a predetermined gap is spaced between the first end and the second end. 6 . The method for docking a coaxial cable according to claim 5 , wherein a side surface of the conductive connecting member facing away from the first protective structure has a length along the longitudinal direction of the coaxial cable. 7 . Opposite first area and second area; The outer core of the first cable is relatively fixedly covered on the first area of the conductive connector, and the outer cores of the first cable are evenly spaced along the circumferential direction of the crimping tube; The outer core of the second cable is relatively fixedly covered on the second area of the conductive connector, and the outer cores of the second cable are evenly spaced along the circumferential direction of the crimping tube. 7 . The method for docking a coaxial cable according to claim 5 , wherein the outer cores of the first cable and the second cable are relatively and fixedly covered on the conductive connecting member. 8 . Include steps: The outer cores of the first cable and the second cable are respectively locked to the conductive connecting member by the locking member; The locking member, the conductive connecting member and the outer cores of the first cable and the second cable are fixedly connected together by lead welding. 8. The docking method for coaxial cables according to claim 5, wherein the preset length is 40 mm to 60 mm. 9. A coaxial cable system, characterized by comprising a first cable, a second cable and the docking assembly for coaxial cables according to any one of claims 1-4, one end of the docking assembly It is fixedly connected to the first cable, and the other end is fixedly connected to the second cable.

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