CN210040584U - Cable assembly and cable joint thereof - Google Patents

Abstract

The utility model relates to a cable subassembly and cable joint thereof. The cable joint comprises a connecting sleeve and a mounting sleeve. The connecting sleeve is a hollow structure with two open ends. The installation sleeve includes relative first installation sleeve and the second installation sleeve that sets up. First installation sleeve and second installation sleeve are used for the cover to establish and fixed heart yearn, and connecting sleeve is worn to locate by first installation sleeve and second installation sleeve to with connecting sleeve's inner wall driving fit, the mutual butt of the relative one end of first installation sleeve and second installation sleeve. The first mounting sleeve and the second mounting sleeve are conductive members. The utility model provides a cable subassembly and cable joint thereof have the electric connection reliability of preferred.

Description

Cable assembly and cable joint thereof

Technical Field

The utility model relates to an electric power tech field especially relates to a cable subassembly and cable joint thereof.

Background

In recent years, cables have been widely used in the layout of urban power grids due to their excellent insulating properties and easy manufacturing and installation. During cable installation, since the cable has a limited length, the cable is generally electrically connected using a cable connector to extend the length of the cable. However, when the cable connector in the prior art is used for connecting a cable, the cable connector and the cable are usually installed by using a crimping method, and the installation mode causes that the air tightness of the cable is weak, and external water vapor easily enters between the cables to cause cable insulation and poor reliability.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a cable assembly and a cable joint thereof with high reliability, aiming at the problem of poor reliability of the conventional cable.

A cable joint for connecting core wires of cables, the cable joint comprising:

the connecting sleeve is of a hollow structure with two open ends; and

the mounting sleeve comprises a first mounting sleeve and a second mounting sleeve which are arranged oppositely, the first mounting sleeve and the second mounting sleeve are used for sleeving and fixing the core wire, the first mounting sleeve and the second mounting sleeve penetrate through the connecting sleeve and are tightly fit with the inner wall of the connecting sleeve, and opposite ends of the first mounting sleeve and the second mounting sleeve are mutually abutted;

the first mounting sleeve and the second mounting sleeve are conductive members.

In one embodiment, the conductive layer further comprises a first conductive layer and a second conductive layer, the first conductive layer is accommodated in the first mounting sleeve and is used for sealing a gap between the core wire and the first mounting sleeve, and the second conductive layer is accommodated in the second mounting sleeve and is used for sealing a gap between the core wire and the second mounting sleeve.

In one embodiment, the first conductive layer and the second conductive layer are both metal conductive layers.

In one embodiment, the inner wall of the first and second mounting sleeves protrudes to form a tapered spike.

In one embodiment, the first mounting sleeve and the second mounting sleeve are both hollow structures with one open end and one closed end, the closed ends of the first mounting sleeve and the second mounting sleeve are oppositely arranged and abutted, and the tapered nails are respectively formed at the closed ends of the first mounting sleeve and the second mounting sleeve.

In one embodiment, the connecting sleeve comprises two sleeve units, and the two sleeve units are oppositely arranged and spliced to form the connecting sleeve.

In one embodiment, the outer walls of the first and second mounting sleeves are formed with external threads, the inner wall of the connecting sleeve is formed with internal threads, the internal threads include a first thread section and a second thread section connected to the first thread section, the first thread section is aligned with and screwed to the external threads on the first mounting sleeve, and the second thread section is aligned with and screwed to the external threads on the second mounting sleeve.

In one embodiment, the major diameter of the external threads on the first and second mounting sleeves remains constant, the minor diameter of the first thread segment decreases gradually from the end thereof remote from the second thread segment to the second thread segment, and the minor diameter of the second thread segment decreases gradually from the end thereof remote from the first thread segment to the first thread segment.

In one embodiment, the first thread segments and the second thread segments have opposite helical directions.

An electrical cable assembly comprising:

a cable including a first cable and a second cable; and

according to the cable joint, the core wire of the first cable is sleeved with the first installation sleeve, and the core wire of the second cable is sleeved with the second installation sleeve.

Above-mentioned cable assembly and cable joint thereof, when needs are connected two cables, the heart yearn of one of them cable end is located to first installation sleeve cover and is fixed with this heart yearn, and the heart yearn of another cable end is located to second installation sleeve cover and is fixed with this heart yearn. During the installation, because first installation sleeve and second installation sleeve are electrically conductive member, the connecting sleeve is worn to locate from the one end opening part of connecting sleeve by first installation sleeve, and the connecting sleeve is worn to locate from the opening part of the other end of connecting sleeve by second installation sleeve, and first installation sleeve and second installation sleeve set up and butt relatively for the electric connection is realized to first installation sleeve of cable accessible and second installation sleeve. And because first installation sleeve and second installation sleeve wear to locate the connecting sleeve to with the inner wall driving fit of connecting sleeve, so can prevent that external steam from getting into and leading to cable insulation from the gap of heart yearn and connecting sleeve, thereby make cable subassembly and cable joint have better reliability.

Drawings

Fig. 1 is a schematic view of the overall structure of a cable assembly according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the overall construction of a first cable of the cable assembly of FIG. 1;

FIG. 3 is a schematic view of the overall construction of a second cable of the cable assembly of FIG. 1;

fig. 4 is a schematic view of an overall structure of a connecting sleeve according to an embodiment of the present invention;

fig. 5 is a schematic view of the overall structure of a connecting sleeve according to another embodiment of the present invention;

FIG. 6 is an exploded view of the alternative embodiment of the coupling sleeve shown in FIG. 5;

fig. 7 is a schematic view of the overall structure of the first mounting sleeve according to an embodiment of the present invention;

FIG. 8 is a structural view illustrating the first core wire sleeved with the first mounting sleeve in the embodiment shown in FIG. 7;

fig. 9 is a schematic view of the overall structure of a first mounting sleeve according to another embodiment of the present invention;

FIG. 10 is a schematic structural view illustrating the first core wire sleeved with the first mounting sleeve in the alternative embodiment shown in FIG. 9;

fig. 11 is a schematic view of the overall structure of the second mounting sleeve according to an embodiment of the present invention;

FIG. 12 is a schematic structural view illustrating the second core wire sleeved with the second mounting sleeve in the embodiment shown in FIG. 11;

fig. 13 is a schematic view of the overall structure of a second mounting sleeve according to another embodiment of the present invention;

fig. 14 is a schematic structural view illustrating the second core wire sleeved with the second mounting sleeve in the other embodiment shown in fig. 13.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, 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 terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, 2 and 3, the present invention provides a cable assembly 10 and a cable connector 100 thereof. The cable assembly 10 includes a cable 200 and a cable connector 100.

The cable 200 is made by covering a core wire with an insulating layer 212. Specifically, the core wire is a conductive member of the cable 200. The insulating layer 212 has an insulating function. The insulating layer 212 covers the surface of the core wire to form the cable 200. Insulation layer 212 prevents current on the core from leaking out and affecting the serviceability and installability of cable 200.

The cable 200 includes a first cable 210 and a second cable 220. The cable connector 100 is used to connect and fix the first cable 210 and the second cable 220 to extend the length of the cable 200, so that the cable 200 has a better applicability.

Specifically, the end of the first cable 210 has the insulation layer 212 removed so that the core wires inside the first cable 210 are exposed. The exposed core of the first cable 210 is designated as the first core 211. An end portion of the second cable 220 removes the insulation layer 212 so that the core wires inside the second cable 220 are exposed. The exposed core of the second cable 220 is designated as the second core 221. The cable joint 100 can be used to fix the first core wire 211 and the second core wire 221, and electrically connect the first core wire 211 and the second core wire 221, so as to achieve the electrical conduction function of the cable 200.

Referring to fig. 4, 5 and 6, the cable connector 100 includes a connecting sleeve 110 and a mounting sleeve 120.

The connection sleeve 110 is a hollow structure with both ends open. A connecting sleeve 110 is located on the exterior of the cable connector 100 for receiving and connecting other components within the cable assembly 10. To ensure that the cable connector 100 is safe to install and use, the connecting sleeve 110 is made of an insulating material. The connecting sleeve 110 may be cylindrical, cubic conical, or other shape.

Specifically, the connection sleeve 110 may be an integrally formed sleeve structure, or may be formed by splicing a plurality of sleeve units 113. In one embodiment, the connection sleeve 110 is a one-piece structure, and in another embodiment, the connection sleeve 110 includes two sleeve units 113, and the two sleeve units 113 are oppositely disposed and spliced to form the connection sleeve 110.

By arranging the two sleeve units 113, when the element in the connecting sleeve 110 needs to be mounted, the element is firstly carried on one of the sleeve units 113, and then the other sleeve unit 113 is buckled on one of the sleeve units 113, so that the element can be accommodated. When disassembling, the other sleeve unit 113 is removed first, and the component can be easily taken out.

Therefore, by providing two sleeve units 113, it is possible to facilitate an operator to mount and dismount the components located in the connection sleeve 110, thereby facilitating an improvement in mounting efficiency.

In one embodiment, an installation groove 114 is formed on an inner wall of one of the sleeve units 113, a convex pillar 115 is formed by protruding the inner wall of the other sleeve unit 113, and the convex pillar 115 is matched with the installation groove 114.

Through setting up projection 115 and mounting groove 114, projection 115 and mounting groove 114 joint, two sleeve units 113 can splice and form connecting sleeve 110. The arrangement of the protruding columns 115 and the mounting grooves 114 enables the two sleeve units 113 to be detachably connected, thereby facilitating the connection sleeve 110 to be reused.

In addition, the arrangement of the protruding columns 115 and the installation grooves 114 can also improve the stability of the connection sleeve 110.

Referring to fig. 7, 8 and 9, the mounting sleeve 120 is disposed through the connecting sleeve 110.

Referring to fig. 10, 11 and 12, the mounting sleeve 120 includes a first mounting sleeve 121 and a second mounting sleeve 122 disposed opposite to each other. The first mounting sleeve 121 and the second mounting sleeve 122 are used for sleeving and fixing the core wires. In the cable assembly 10, the first mounting sleeve 121 is disposed around the core of the first cable 210, and the second mounting sleeve 122 is disposed around the core of the second cable 220. Namely, the first installation sleeve 121 is sleeved on the first core wire 211, and the second installation sleeve 122 is sleeved on the second core wire 221.

Specifically, since the first core wire 211 and the second core wire 221 are generally cylindrical when installed, the coupling sleeve 110, the first mounting sleeve 121, and the second mounting sleeve 122 are also provided to be cylindrical. When the shapes of the first core wire 211 and the second core wire 221 are changed, the shapes of the connection sleeve 110, the first mounting sleeve 121, and the second mounting sleeve 122 are also changed accordingly.

The inner diameter of the first installation sleeve 121 is matched with the outer diameter of the first core wire 211, so that when the first installation sleeve 121 is sleeved on the first core wire 211, the first core wire 211 is clamped with the first installation sleeve 121, and the first core wire 211 and the first installation sleeve 121 can be fixed. The fixing mode is simple and easy to implement, and the working efficiency is convenient to improve.

Specifically, the length of the first mounting sleeve 121 may be greater than, equal to, or less than the length of the first core wire 211, and the length of the second mounting sleeve 122 may be greater than, equal to, or less than the length of the second core wire 221.

It should be noted that the second core 221 and the second mounting sleeve 122 are disposed in the same manner as the first core 211 and the first mounting sleeve 121, and therefore, the description thereof is omitted here.

The first mounting sleeve 121 and the second mounting sleeve 122 are disposed through the connection sleeve 110, and are closely fitted to the inner wall of the connection sleeve 110.

Specifically, the first mounting sleeve 121 and the second mounting sleeve 122 may be sealed by disposing a sealant layer between the first mounting sleeve 121 and the inner wall of the connecting sleeve 110, and between the second mounting sleeve 122 and the inner wall of the connecting sleeve 110, or may be connected by disposing a sealing ring, a sealing gasket, or a sealing thread between the first mounting sleeve 121 and the inner wall of the connecting sleeve 110, and between the second mounting sleeve 122 and the inner wall of the connecting sleeve 110.

The first and second mounting sleeves 121 and 122 have external threads formed on outer walls thereof, and the connecting sleeve 110 has internal threads (not shown) formed on an inner wall thereof, the internal threads including first thread segments 111 and second thread segments 112 connected to the first thread segments 111. The first thread segments 111 are aligned with and threadably engage external threads on the first mounting sleeve 121. The second thread segments 112 are aligned with and threadably engage external threads on the second mounting sleeve 122.

Specifically, the external threads on the first mounting sleeve 121 are set to first external threads 1212, and the external threads on the second mounting sleeve 122 are set to second external threads 1222. In one aspect, the first external thread 1212 and the first threaded segment 111, and the second external thread 1222 and the second threaded segment 112 are threaded structures with high sealing performance, so that the first external thread 1212 is screwed with the first threaded segment 111 to achieve sealing between the first mounting sleeve 121 and the connection sleeve 110, and the second external thread 1222 is screwed with the second threaded segment 112 to achieve sealing between the second mounting sleeve 122. Further, it is prevented that the external moisture enters between the first core wire 211 and the second core wire 221 from the gaps between the first core wire 211 and the connection sleeve 110 and between the second core wire 221 and the connection sleeve 110, so as to cause insulation between the first core wire 211 and the second core wire 221, and thus the connection of the cable 200 has better reliability.

On the other hand, the arrangement of the first external thread 1212 and the first thread section 111, and the arrangement of the second external thread 1222 and the second thread section 112 also enable the connection of the cable 200 to have the characteristics of simple operation and convenient use.

In a conventional connection between the first core wire 211 and the second core wire 221, a fixing sleeve is sleeved on the first core wire 211 and the second core wire 221, and the first core wire 211 and the second core wire 221 are crimped to fix the first core wire 211 and the second core wire 221. The crimping method complicates the operation of connecting the first core 211 and the second core 221, and is inconvenient to use.

In this embodiment, the connecting sleeve 110 is provided with the first threaded section 111 and the second threaded section 112, the first mounting sleeve 121 is provided with the first external thread 1212, the second mounting sleeve 122 is provided with the second external thread 1222, when mounting, the first mounting sleeve 121 sleeved on the first core wire 211 penetrates through the connecting sleeve 110 from the opening at one end of the connecting sleeve 110, and the first external thread 1212 is matched with the first threaded section 111; the second installation sleeve 122 sleeved on the second core wire 221 is disposed through the connection sleeve 110 from the opening at the other end of the connection sleeve 110, and the second external thread 1222 is matched with the second thread segment 112, so that the connection between the first core wire 211 and the second core wire 221 can be realized. Therefore, compared with the traditional crimping mode, the cable connector has the characteristics of simplicity in operation and convenience in use.

Further, in one embodiment, the major diameter of the external threads on the first and second mounting sleeves 121, 122 remains constant. The minor diameter of the first thread segments 111 decreases progressively in a direction from the end thereof remote from the second thread segments 112 to the second thread segments 112. The minor diameter of the second thread segments 112 decreases in a direction from the end thereof remote from the first thread segments 111 to the first thread segments 111.

In particular, major diameter refers to the diameter of an imaginary cylinder or cone tangent to the crest in the external thread. Minor diameter refers to the diameter of an imaginary cylinder or cone tangent to the crest of the internal thread.

Therefore, during installation, under the action of external force striking, the first thread section 111 and the second thread section 112 can be gradually tightened with the inner wall of the connection sleeve 110, and the gradually tightened arrangement mode can further reduce the gaps between the first installation sleeve 121, the second installation sleeve 122 and the inner wall of the connection sleeve 110, so as to further improve the sealing performance of the cable assembly 10, and thus the cable assembly 10 has better electrical connection reliability.

Furthermore, the connection of the first and second mounting sleeves 121, 122 to the connecting sleeve 110 is also made tighter.

It should be noted that the small diameter of the first thread segment 111 and the second thread segment 112 should be within a proper range, so as to ensure that the first external thread 1212 and the first thread segment 111 are in close contact when they are mated, but the threads of the first external thread 1212 and the first thread segment 111 are not damaged. The second external threads 1222 mate with the second thread segments 112 more closely, but the threads of the second external threads 1222 and the second thread segments 112 are not damaged.

Further, in one embodiment, the first thread segments 111 and the second thread segments 112 are threaded in opposite directions.

The first and second mounting sleeves 121 and 122 abut against each other at opposite ends thereof. The first mounting sleeve 121 and the second mounting sleeve 122 are conductive members.

Therefore, the first core wire 211 and the second core wire 221 can be electrically connected through the mounting sleeve 121 and the second mounting sleeve 122, thereby achieving the electrical connection of the cable 200.

Therefore, the cable joint 100 has better sealing performance when connecting the cables 200, so that the cables 200 can be prevented from being insulated due to the fact that external moisture enters between the cables 200, and the connection of the cables 200 has better reliability.

In one embodiment, the first thread segments 111 and the second thread segments 112 are internal threads and have opposite threading directions. If the position where the first thread segments 111 are connected to the second thread segments 112 is defined as the middle portion of the connecting sleeve 110. The first thread segments 111 are located between one open end and a middle portion of the connecting sleeve 110. The second thread segments 112 are located between the other open end and the middle portion of the connecting sleeve 110. Correspondingly, the first external thread 1212 and the second external thread 1222 are opposite in thread direction. When the first external thread 1212 is screwed into the middle portion from one end of the connection sleeve 110, if the first mounting sleeve 121 continues to move, the first mounting sleeve cannot advance due to the change of the screw direction inside the connection sleeve 110. The second mounting sleeve 122 also cannot continue to move while threaded into the middle. Therefore, by arranging the first thread section 111 and the second thread section 112 with opposite screw directions, when the first mounting sleeve 121 and the second mounting sleeve 122 move to the middle and abut against each other, the movement can be forced to stop, so that the first mounting sleeve 121 or the second mounting sleeve 122 can be prevented from moving continuously and being squeezed and deformed between the first mounting sleeve 121 and the second mounting sleeve 122, and the connection of the cable 200 has better sealing performance.

Specifically, the first mounting sleeve 121 and the second mounting sleeve 122 may be hollow structures with two open ends, or hollow structures with one open end and one closed end, and only needs to ensure that the first mounting sleeve 121 can be sleeved on the first core wire 211, and the second mounting sleeve 122 can be sleeved on the second core wire 221. Specifically, in the embodiment, when the first mounting sleeve 121 is sleeved on the first core 211, the first core 211 is completely covered in the first mounting sleeve 121. When the second installation sleeve 122 is sleeved on the second core wire 221, the second core wire 221 is completely covered in the second installation sleeve 122. First mounting sleeve 121 abuts against the end face of the insulating layer of first cable 210 at the end provided with first core wire 211, and second mounting sleeve 122 abuts against the end face of the insulating layer of second cable 220 at the end provided with second core wire 221. Therefore, external moisture cannot enter between the first core wire 211 and the first mounting sleeve 121 from the gap between the first core wire 211 and the first mounting sleeve 121, and cannot enter between the second core wire 221 and the second mounting sleeve 122 from the gap between the second core wire 221 and the second mounting sleeve 122, so that the whole cable assembly 10 has better sealing performance. In addition, since the insulating layer 212 is generally made of a rubber material having elasticity, when the first mounting sleeve 121 and the second mounting sleeve 122 are abutted to the insulating layer 212, the insulating layer 212 may deform, so as to have better sealing performance with the end of the first mounting sleeve 121 and the end of the second mounting sleeve 122 abutted to the insulating layer 212.

In an embodiment, the first mounting sleeve 121 and the second mounting sleeve 122 are hollow structures with two open ends, and when the first mounting sleeve 121 is sleeved on the first core wire 211, the end of the first core wire 211 may be flush with an end surface of one end of the first mounting sleeve 121, or may be located in the first mounting sleeve 121. When the second core wire 221 is sleeved by the second mounting sleeve 122, the end of the second core wire 221 is flush with an end face of the second mounting sleeve 122, or is located in the second mounting sleeve 122.

When the end of the first core wire 211 is flush with the end face of the first mounting sleeve 121 and the end of the second core wire 221 is flush with the end face of the second mounting sleeve 122, the end face of the first core wire 211 abuts against the end face of the second core wire 221, so that the first core wire 211 and the second core wire 221 can be electrically connected.

At this time, the end surface of the first mounting sleeve 121 and the end surface of the second mounting sleeve 122 also abut against each other. Since the first and second mounting sleeves 121 and 122 are conductive members, the first and second cores 211 and 221 may be electrically conducted directly through the cores, or may be electrically conducted through the first and second mounting sleeves 121 and 122, so that the electrical conduction between the first and second cores 211 and 221 is more stable.

When the end of the first core wire 211 is located in the first mounting sleeve 121 and the end of the second core wire 221 is located in the second mounting sleeve 122, the first core wire 211 and the second core wire 221 are electrically connected by abutting the end face of the first mounting sleeve 121 with the end face of the second mounting sleeve 122.

Specifically, it is preferable that the length of the first mounting sleeve 121 is equal to the length of the first core wire 211, the length of the second mounting sleeve 122 is equal to the length of the second core wire 221, the end of the first core wire 211 is flush with the end face of one end of the first mounting sleeve 121, and the end of the second core wire 221 is flush with the end face of one end of the second mounting sleeve 122. Thus, the first core wire 211 may be completely received within the first mounting sleeve 121 and the second core wire 221 may be completely received within the second mounting sleeve 122. On the one hand, the first core 211 and the second core 221 can be protected inside the first installation sleeve 121 and the second installation sleeve 122, respectively, so as to prevent the first core 211 and the second core 221 from being damaged under the action of the external environment. On the other hand, in this case, the electrically conductive paths of the first core wire 211 and the second core wire 221 may be various. For example, the first core wire 211 is electrically conducted by being in contact with the second core wire 221, or by being in contact with one end surfaces of the first mounting sleeve 121 and the second mounting sleeve 122. Therefore, when one of the electrically conductive paths fails, other operable electrically conductive paths are provided, so that the electrical connection between the first core wire 211 and the second core wire 221 has better electrical connection reliability.

Moreover, with this arrangement, the first core 211 and the second core 221 can be completely sealed in the sealed channel formed by the insulating layer 212 of the first cable 210, the first mounting sleeve 121, the second mounting sleeve 122 and the insulating layer 212 of the second cable 220, so that the connected cable assembly 10 has better connection reliability.

The shapes of the first mounting sleeve 121 and the second mounting sleeve 122 are not limited to the shapes with openings at both ends, and in another embodiment, the first mounting sleeve 121 and the second mounting sleeve 122 may be hollow structures with openings at one end and closed at one end.

In another embodiment, when the first installation sleeve 121 is sleeved on the first core wire 211, the first core wire 211 is completely accommodated and clamped in the first installation sleeve 121; when the second installation sleeve 122 is sleeved on the second core wire 221, the second core wire 221 is completely accommodated and clamped in the second installation sleeve 122. In connection, the closed end surface of the first mounting sleeve 121 abuts against the closed end surface of the second mounting sleeve 122, and the first core wire 211 and the second core wire 221 are electrically connected by electrical conduction through the first mounting sleeve 121 and the second mounting sleeve 122.

In one embodiment, cable connector 100 further includes a conductive layer. The conductive layer includes a first conductive layer 131 and a second conductive layer 132. The first conductive layer 131 is accommodated in the first mounting sleeve 121 and is used for sealing a gap between the first core wire 211 and the first mounting sleeve 121. The second conductive layer 132 is received in the second mounting sleeve 122 and is used to seal the gap between the second core 221 and the second mounting sleeve 122.

In one embodiment, in order to prevent the first core wire 211 and the second core wire 221 from loose connection due to gaps between the first mounting sleeve 121 and the first core wire 211 and between the second mounting sleeve 122 and the second core wire 221, and further prevent the electrical connection between the first core wire 211 and the second core wire 221 from being failed, a conductive layer is provided.

The first conductive layer 131 may seal the gap between the first mounting sleeve 121 and the first core 211, and the second conductive layer 132 may seal the gap between the second mounting sleeve 122 and the second core 221. Therefore, the first mounting sleeve 121 and the first core wire 211, and the second mounting sleeve 122 and the second core wire 221 are firmly mounted, and the reliability of the electrical connection is stronger.

During mounting, the first conductive layer 131 covers the surface of the first core wire 211 and abuts against the inner wall of the first mounting sleeve 121. The second conductive layer 132 covers the surface of the second core wire 221 and abuts against the inner wall of the second mounting sleeve 122.

Preferably, when the first core wire 211 abuts against the end face of the second core wire 221, the first conductive layer 131 also abuts against the second conductive layer 132. The first conductive layer 131 and the second conductive layer 132 are both conductive. Accordingly, the first core wire 211 may be electrically connected with the second core wire 221 through various conductive paths. For example, the first core wire 211 is electrically connected to the second core wire 221 through the first conductive layer 131, the first mounting sleeve 121, the second mounting sleeve 122, and the second conductive layer 132, or may be connected to the second core wire 221 through the first conductive layer 131 and the second conductive layer 132, and so on. Thereby allowing more electrical conduction paths between the first core 211 and the second core 221. When one of the paths fails, there are also a plurality of paths for electrically connecting the first core 211 and the second core 221, thereby making the electrical connection between the first core 211 and the second core 221 more reliable.

In addition, the first conductive layer 131 and the second conductive layer 132 also have a sealing function, so that moisture from the outside can be prevented from entering between the first core wire 211 and the second core wire 221, and the first core wire 211 and the second core wire 221 are insulated.

Specifically, the first conductive layer 131 and the second conductive layer 132 may be a conductive adhesive layer, a non-metal conductive layer, and a metal conductive layer. Specifically, in one embodiment, the first conductive layer 131 and the second conductive layer 132 are both metal conductive layers.

The metal conductive layer has better chemical stability and mechanical strength. Since the first mounting sleeve 121 and the first core wire 211, and the second mounting sleeve 122 and the second core wire 221 are engaged with each other, the pressing force is generally large.

The first conductive layer 131 and the second conductive layer 132 are both made of metal conductive layers, so that after the first conductive layer 131 and the second conductive layer 132 are mounted, the first conductive layer 131 and the second conductive layer 132 can be prevented from being deformed and damaged under the action of a squeezing force due to better mechanical strength, and therefore, the reliability is better.

Specifically, the metal conductive layer may be prepared by pouring molten metal between the first mounting sleeve 121 and the first core wire 211 and between the second mounting sleeve 122 and the second core wire 221, and forming the metal conductive layer by solidification. For example, the metal may be tin or the like.

Referring to fig. 13 and 14, in one embodiment, the inner walls of the first and second mounting sleeves 121 and 122 are protruded to form a tapered nail 140. Specifically, the tapered nail 140 on the first mounting sleeve 121 may be integrally formed with the first mounting sleeve 121 or may be separately formed. The tapered spikes 140 on the second mounting sleeve 122 may be integrally formed with the second mounting sleeve 122 or may be separately formed.

When the first mounting sleeve 121 and the first core wire 211, and the second mounting sleeve 122 and the second core wire 221 are fixed, the taper nails 140 may be driven into the first core wire 211 and the second core wire 221, so that the first mounting sleeve 121 and the first core wire 211, and the second mounting sleeve 122 and the second core wire 221 are in contact more firmly, thereby facilitating to enhance the reliability of the electrical connection between the first core wire 211 and the second core wire 221.

When the first mounting sleeve 121 and the second mounting sleeve 122 are hollow structures with openings at both ends, mounting openings may be formed on the inner walls of the first mounting sleeve 121 and the second mounting sleeve 122, and the conical nails 140 may be driven into the first core wire 211 and the second core wire 221 by external force striking.

When the first mounting sleeve 121 and the second mounting sleeve 122 are hollow structures with one open end and one closed end, the tapered nail 140 may be mounted by striking, or, in another embodiment, the closed ends of the first mounting sleeve 121 and the second mounting sleeve 122 are disposed opposite to each other and abutted against each other, and the tapered nail 140 is formed at the closed ends of the first mounting sleeve 121 and the second mounting sleeve 122, respectively.

When the first mounting sleeve 121 is mounted on the first core 211, the first core 211 is gradually close to the closed end, so that the first core 211 is fixed to the first mounting sleeve 121. In the approaching process, the taper pin 140 gradually contacts the first core 211 and can be driven completely into the first core 211 when the first core 211 abuts against the inner end surface of the closed end. The second core wire 221 and the tapered nail 140 on the second mounting sleeve 122 are mounted in the same manner as the first core wire 211 and the tapered nail 140 on the first mounting sleeve 121, and therefore, the description thereof is omitted.

Therefore, in this embodiment, by disposing the tapered pins 140 at the closed ends of the first and second mounting sleeves 121 and 122, the tapered pins 140 can be mounted during the operation of accommodating the first core wire 211 in the first mounting sleeve 121 and accommodating the second core wire 221 in the second mounting sleeve 122, thereby facilitating the improvement of the mounting efficiency.

In one embodiment, the first mounting sleeve 121, the second mounting sleeve 122, the first core 211 and the second core 221 each have a length half that of the connecting sleeve 110. The external thread on the first mounting sleeve 121 and the external thread on the second mounting sleeve 122 are also provided to have a length half that of the coupling sleeve 110.

Therefore, when the first mounting sleeve 121 and the second mounting sleeve 122 are inserted into the connecting sleeve 110, the first mounting sleeve 121 and the second mounting sleeve 122 can be completely accommodated in the connecting sleeve 110, and two opposite ends of the connecting sleeve 110 are respectively abutted to the end surface of the insulating layer 212 on the first cable 210 and the end surface of the insulating layer 212 on the second cable 220, so as to form the cable assembly 10 with strong sealing property and a smooth and flat surface, thereby effectively preventing external water vapor from entering the connecting sleeve 110 and affecting the operational reliability of the cable assembly 10. This arrangement also ensures that the end faces of the first core wire 211 and the second core wire 221 can be preferably abutted.

When the entire cable assembly 10 is assembled, there are two ways of installation. The first installation mode is as follows:

the first installation sleeve 121 is firstly sleeved on the first core wire 211, the second installation sleeve 122 is sleeved on the second core wire 221, and then the first installation sleeve 121 and the second installation sleeve 122 are screwed into the connection sleeve 110 simultaneously or sequentially.

The second mounting method is to first sleeve the first mounting sleeve 121 on the first core wire 211, sleeve the second mounting sleeve 122 on the second core wire 221, and then screw the first mounting sleeve 121 and the second mounting sleeve 122 to one of the sleeve units 113, respectively, and then fasten the other sleeve unit 113 to one of the sleeve units 113.

When two cables 200 need to be connected, the first mounting sleeve 121 is sleeved on and fixed to the core wire at one end of one of the cables 200, and the second mounting sleeve 122 is sleeved on and fixed to the core wire at one end of the other cable 200. During installation, because the first installation sleeve 121 and the second installation sleeve 122 are conductive members, the first installation sleeve 121 penetrates through the connection sleeve 110 from an opening at one end of the connection sleeve 110, the second installation sleeve 122 penetrates through the connection sleeve 110 from an opening at the other end of the connection sleeve 110, and the first installation sleeve 121 and the second installation sleeve 122 are oppositely arranged and abutted, so that the cable 200 can be electrically connected through the first installation sleeve 121 and the second installation sleeve 122. Since the first mounting sleeve 121 and the second mounting sleeve 122 are disposed through the connection sleeve 110 and tightly fit to the inner wall of the connection sleeve 110, the cable 200 can be prevented from being insulated due to external moisture entering from the gap between the core wire and the connection sleeve 110, so that the cable assembly 10 and the cable joint 100 thereof have better reliability.

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.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A cable joint for connecting core wires of cables, the cable joint comprising:

the connecting sleeve is of a hollow structure with two open ends; and

the mounting sleeve comprises a first mounting sleeve and a second mounting sleeve which are arranged oppositely, the first mounting sleeve and the second mounting sleeve are used for sleeving and fixing the core wire, the first mounting sleeve and the second mounting sleeve penetrate through the connecting sleeve and are tightly fit with the inner wall of the connecting sleeve, and opposite ends of the first mounting sleeve and the second mounting sleeve are mutually abutted;

the first mounting sleeve and the second mounting sleeve are conductive members.

2. The cable joint of claim 1, further comprising a conductive layer including a first conductive layer and a second conductive layer, the first conductive layer being received within the first mounting sleeve and being adapted to seal a gap between the core and the first mounting sleeve, the second conductive layer being received within the second mounting sleeve and being adapted to seal a gap between the core and the second mounting sleeve.

3. The cable joint according to claim 2, wherein the first conductive layer and the second conductive layer are both metal conductive layers.

4. The cable fitting of claim 1, wherein the inner wall projections of the first and second mounting sleeves form tapered spikes.

5. The cable joint as claimed in claim 4, wherein the first and second mounting sleeves are hollow structures with one open end and one closed end, the closed ends of the first and second mounting sleeves are oppositely disposed and abutted, and the tapered nails are respectively formed at the closed ends of the first and second mounting sleeves.

6. A cable splice as claimed in claim 1, in which the jointing sleeve comprises two sleeve units which are arranged in opposition and are spliced to form the jointing sleeve.

7. The cable joint according to any one of claims 1 to 6, wherein the outer walls of the first and second mounting sleeves are formed with external threads, and the inner wall of the connecting sleeve is formed with internal threads, the internal threads comprising a first thread segment and a second thread segment connected to the first thread segment, the first thread segment being aligned with and threadedly engaged with the external threads on the first mounting sleeve, and the second thread segment being aligned with and threadedly engaged with the external threads on the second mounting sleeve.

8. The cable fitting of claim 7, wherein the major diameter of the external threads on the first and second mounting sleeves remains constant, the minor diameter of the first thread segment decreases in a direction from the end thereof remote from the second thread segment to the second thread segment, and the minor diameter of the second thread segment decreases in a direction from the end thereof remote from the first thread segment to the first thread segment.

9. The cable joint according to claim 8, wherein the first thread section and the second thread section are oppositely threaded.

10. An electrical cable assembly, comprising:

a cable including a first cable and a second cable; and

the cable joint of any one of the preceding claims 1 to 9, wherein the first mounting sleeve is sleeved on the core wire of the first cable, and the second mounting sleeve is sleeved on the core wire of the second cable.

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