Cable connector and assembly method thereof

Abstract

The present invention provides a cable connector and an assembly method thereof. The cable connector includes an insertion base, a terminal set, a telescopic sleeve, an elastic element, and a cable fitted with a positioning ring sheet and an insulation sleeve. In which, the center of the insertion base is a surface configured with screw holes, and both sides of the insertion base are respectively configured with an insertion portion and a fastening portion. The outer peripheral surface on the rear side of the fastening portion is configured with locking holes. The terminal set includes a plurality of terminal blocks positioned with a plurality of insertion terminals, in which the butting ends of the terminal block are located in the insertion space of the insertion base and the welding ends are located outside the terminal base and welded with wire cores of cable. The outer periphery of the insertion portion of the insertion base is sequentially fitted with the elastic element and movably positioned with the telescopic sleeve. By the configuration that the fastening components and the locking components are fitted to the screw holes and the locking holes of the base, the insertion base and the terminal base may be respectively fastened with the insertion base and the cable, so as to achieve the effects of having a simple structure, being stable for insertion / unplugging, and reliable positioning.

Description

[Technical Field]

[0001] This invention relates to a cable connector and its assembly method, particularly to a method that uses fixing elements and locking elements to fix the plug body and terminal block and the plug body and cable together to ensure the overall structure is stable and secure, achieves rapid assembly and maintains yield, and optimizes the process to reduce costs. [Previous Technology]

[0002] Generally speaking, connectors are connecting elements and accessories used in electronic signals and power supply. Their main function is to provide connections between various electronic devices or equipment and to ensure accurate signal transmission. Connectors have developed into various types depending on the products they are used in, their power, and the environment in which they are used. They can be widely used in consumer electronics such as computers, laptops, and smartphones, as well as in home appliances, telecommunications and communication equipment, automobiles, industry, transportation, aviation and other fields.

[0003] Furthermore, conventional multi-core cable connectors provide multiple cores of a cable and corresponding plug terminals to form an electrical connection by soldering. For reference, see the conventional multi-core cable connector in PCT Patent Publication No. WO2009 / 133972A. This invention relates to an electrical connector for multi-cables. This connector effectively simplifies the connection and disconnection between the plug and socket, even in confined spaces, narrow work areas, or when the socket is fixed to the equipment. Furthermore, it ensures electrical stability by protecting the connector between the plug and cable from peeling or bending under impact, and provides quick connection and disconnection to prevent electric shock and improve electrical reliability. However, while this connector structure solves some of the conventional problems, its multi-cable connector structure is very complex, and its overall protection against rotation and terminal block retraction during insertion and removal is not perfect. This can lead to the connector and cable twisting, causing multiple core wires in the cable to break, detach, resulting in poor contact or short circuits. Moreover, due to the large number of components, conventional products suffer from structural complexity, high cost, and difficulty in assembly. Therefore, how to match the assembly and insertion / removal characteristics of electrical connectors and provide a locking structure that can be matched with mating connectors to improve service life has become a problem that those skilled in the art need to consider and solve. [Summary of the Invention]

[0004] Therefore, in view of the above-mentioned problems and deficiencies, the inventor collected relevant information, conducted multiple evaluations and considerations, and based on years of experience accumulated in this industry, through continuous creation and modification, finally designed this cable connector and its assembly method, thus giving birth to the invention patent.

[0005] The main purpose of the cable connector of the present invention is that the two sides of the plug-in body are respectively provided with a plug-in part and a fixing part. The outer diameter surface of the rear side of the fixing part is provided with a locking hole, and a plug-in space is provided in the hollow part of the plug-in part. The hollow part of the fixing part forms a fixing space that extends through to the plug-in space. The terminal group includes a terminal block with a plurality of plug-in terminals inserted and positioned. The mating end of the terminal block is located in the plug-in space of the plug-in body, and the soldering end is located outside the terminal block. Furthermore, the outer diameter of the plug-in part of the plug-in body is provided with an elastic element and a telescopic sleeve that is movably positioned. The plug-in body and the preset cable can be fixed together by means of the locking element and the locking hole of the plug-in body, so as to achieve the effects of simple structure, stable plugging and unplugging and reliable positioning.

[0006] Another main objective of the cable connector of the present invention is that the two sides of the plug-in body are respectively provided with a plug-in part and a fixing part. The outer diameter surface of the rear side of the fixing part is provided with a locking hole, and a plug-in space is formed in the hollow part of the plug-in part. The fixing part is formed with a fixing space that extends through the plug-in space. The terminal group includes a terminal seat with a plurality of plug-in terminals inserted and positioned. The mating end of the terminal seat is located in the plug-in space of the plug-in body, and the soldering end is located outside the terminal seat. The plurality of conductor cores of the cable are soldered to the soldering ends of the corresponding plug-in terminals to form a fixation. In addition, the outer diameter of the plug-in part of the plug-in body is provided with an elastic element and a telescopic sleeve that is movably positioned. By using the locking element in conjunction with the locking hole of the plug-in body, the plug-in body and the cable can be fixed together. This can effectively prevent the cable from being displaced when pulled by external force, thereby avoiding the occurrence of breakage or peeling at the soldering position of each plug-in terminal and the corresponding conductor core.

[0007] A secondary objective of the cable connector of the present invention is that a screw hole is provided on the outer diameter of the plug body, so that the plug body and the terminal block can be fixed together by means of a fixing element in conjunction with the screw hole of the plug body. When the mating connector and the cable connector of the present invention are plugged and unplugged, the terminal block will not cause rotation or backward movement in the plugging space and fixing space of the plug body due to repeated plugging and unplugging.

[0008] The main objective of the cable connector assembly method of the present invention is to provide an assembly process comprising: firstly, inserting a plurality of plug terminals of the terminal group into the receiving holes of the terminal block to form a positioning, with the soldering end located outside the terminal block; then, sequentially fitting the positioning ring and insulating sleeve onto the outer diameter of the cable, and clamping the positioning ring on the cable for positioning; next, soldering a plurality of conductor cores onto the soldering ends of the corresponding plug terminals to form a fixation, and fixing them with insulating adhesive or molding to form a glue seat in the soldering area; furthermore, placing an elastic element into the limiting space of the telescopic sleeve and the outer diameter of the plug-in portion of the plug-in body, and positioning the rear side of the telescopic sleeve on the outer diameter of the plug-in body for positioning, so that the two ends of the elastic element abut against the outer diameter of the plug-in body and the inner diameter of the telescopic sleeve to form an elastic support state; and finally, assembling the terminal block with the plurality of plug terminals. The formed terminal group and cable are pushed into the fixed space of the fixed part of the plug-in body for positioning, and the front mating end of the terminal block is fixed at the front edge of the plug-in space of the plug-in body. The fixing element can be locked into the screw hole of the plug-in body to fix it at the terminal block for positioning. The telescopic sleeve can be moved and stretched outside the plug-in part of the plug-in body by the elastic support of the elastic element. Then, another locking element is locked into the positioning ring on the cable through the locking hole of the plug-in body for positioning. At this time, the convex fastening part of the insulating collar can be fixed on the outer diameter of the fixed part of the plug-in body for positioning. Through the above steps, the cable electrical connector can be assembled into a whole, thereby reducing the processing steps, assembly procedures and costs. Its advantages are simple structure, stable insertion and removal, reliable positioning, low cost and no twisting and breakage of electrical connector and cable.

[0009] Another object of the present invention is that a positioning ring with a cross section is sleeved and clamped on the cable, and can be locked into the locking hole of the plug-in body fixing part by the locking element and held against the cross section of the positioning ring to form a stable positioning, so that the plug-in body and the cable are locked to the position of the positioning ring by the locking element, which can effectively prevent the cable from being displaced when pulled by external force, and thus avoid the occurrence of breakage or peeling at the welding position of each plug-in terminal and the corresponding conductor core. [Simplified Explanation of the Diagram]

[0010] [Figure 1] is a perspective view of the present invention.

[0010] [Figure 2] is an exploded perspective view of the present invention.

[0010] [Figure 3] is an exploded perspective view of the present invention.

[0010] [Figure 4] is an exploded perspective view of the present invention during assembly.

[0010] [Figure 5] is an exploded perspective view of the present invention during the assembly of the insulating sleeve.

[0010] [Figure 6] is a side cross-sectional view of the present invention.

Implementation Method

[0011] In order to achieve the above-mentioned objectives and effects, the technical means, structure, and implementation methods adopted by the present invention are described in detail below with reference to the preferred embodiments of the present invention, so as to facilitate a complete understanding.

[0012] Please refer to Figures 1, 2, 3, and 4. As can be clearly seen from the figures, the cable connector of the present invention includes a plug-in body 1, a terminal group 2, a telescopic sleeve 3, an elastic element 4, and a cable 5 fitted with a positioning ring 6 and an insulating sleeve 7, wherein:

[0013] The connector body 1 is formed as a hollow tube with a base 11 at its center. The base 11 has a connector 12 and a fixing part 13 on its two sides. The outer diameter surface of the base 11 is provided with a screw hole 110. A stepped stop 1101 with a downward bend is formed between the base 11 and the connector 12. A connector space 120 is provided in the hollow part of the connector 12. A plurality of guide blocks 121 with axial equidistant protrusions are formed on the outer diameter and buckle holes 122 are provided on both sides. It is used for guiding and engaging positioning when the docking connector is used with the cable connector of the present invention for plugging and unplugging. The hollow part of the fixing part 13 forms a fixing space 130 that extends through the plugging space 120. The fixing space 130 has an axially extending guide rail 1301 protruding inside, and a locking hole 131 is provided at the outer diameter. An annular groove 132 is formed between the base 11 and the locking hole 131, and the locking hole 131 is for locking the locking element 133.

[0014] The terminal assembly 2 includes a terminal block 21 and a plurality of plug-in terminals 22. The terminal block 21 has a plurality of through-holes 210 and a stepped surface 2111 is formed on the outer diameter of its mating end 211. A groove 212 is formed on the outer diameter surface of the other side of the mating end 211. A metal fixing ring 214 with upper and lower retaining parts 2141 is integrally molded on the outer diameter of the terminal block 21 at the position of the groove 212. The fixing ring 214 has a cut surface 2142 that is flush with the groove 212 for fixing. The ring plate 214 structure further increases the overall strength after locking. Additionally, a guide groove 213 with an axial extension is provided at the bottom, which can slide on the guide rail 1301. The plug ends 221 of the multiple plug terminals 22 are inserted and positioned in the receiving hole 210, and the solder ends 222 are exposed outside the groove 212 near the terminal base 21. This allows the multiple conductors 51 of the cable 5 to be soldered to the solder ends 222 of the plug terminals 22 to form an electrical connection and be fixed as one piece. The solder base 23 is then glued to the soldering area with insulating glue.

[0015] The telescopic sleeve 3 is a hollow tube, and the rear side of the through hole 31 of the telescopic sleeve 3 is positioned on the rear edge of the base 11. A limiting space 30 is formed in the hollow part, and a protruding stop part 301 is formed in the inner diameter of the limiting space 30. A through hole 31 is provided on the outer diameter surface. The through hole 31 allows the fixing element 32 to pass through and lock into the screw hole 110 of the base 11 of the plug-in seat 1, and then abut against the cut surface 2142 of the groove 212 of the terminal seat 21 to form a positioning. An elastic element 4 can be placed in the limiting space 30 of the telescopic sleeve 3 and the outer diameter of the plug-in part 12 of the plug-in seat 1, so that the two ends of the elastic element 4 abut against the stop part 1101 of the base 11 and the inner stop part 301 of the telescopic sleeve 3 to form an elastic support state for use.

[0016] Please refer to Figures 2, 5, and 6. The positioning ring 6 has a cross-section 61. The positioning ring 6 is sleeved and clamped on the cable 5 for positioning. It can be locked into the locking hole 131 of the fixing part 13 of the plug-in body 1 by the locking element 133 and then abutted against the cross-section 61 of the positioning ring 6 to form a positioning. This allows the plug-in body 1 and the cable 5 to be locked to the position of the cross-section 61 of the positioning ring 6 by the locking element 133, which can effectively prevent the cable 5 from being displaced when pulled by external force. This can also avoid the occurrence of breakage or peeling at the welding position of each plug-in terminal 22 and the corresponding wire core 51.

[0017] Please refer to Figures 1, 5, and 6. The insulating sleeve 7 is fitted onto the outer diameter of the cable 5 and is fixed in the annular groove 132 on the outer diameter of the fixing part 13 of the plug-in body 1 by the annular protrusion fastening part 71 for positioning.

[0018] Please refer to Figures 1, 2, 3, 4, and 6. As can be clearly seen from the figures, the assembly steps of the present invention include: first, inserting a plurality of plug-in terminals 22 of the terminal group 2 into the receiving holes 210 of the terminal base 21 to form a positioning, and making the soldering ends 222 exposed outside the adjacent grooves 212 of the terminal base 21; then, sequentially fitting the positioning ring 6 with a cross-section 61 and the insulating sleeve 7 onto the outer diameter of the cable 5, and clamping the positioning ring 6 on the cable 5 to form a positioning; and then soldering a plurality of conductor cores 51 to the corresponding plug-in terminals 22. A fixing point is formed on the welding end 222, and an insulating adhesive is used to bond it to the welding area to form an adhesive base 23. An elastic element 4 is placed in the limiting space 30 of the telescopic sleeve 3 and on the outer diameter of the insertion part 12 of the insertion seat 1. The rear side of the through hole 31 of the telescopic sleeve 3 is positioned on the rear edge of the base 11, so that the two ends of the elastic element 4 abut against the stop part 1101 of the base 11 and the stop part 301 at the inner diameter of the telescopic sleeve 3, forming an elastic support state. Please refer to Figures 1, 4, 5, and 6. Continue to assemble the multiple insertion parts... The terminal group 2 and cable 5 formed by the terminal base 21 of terminal 22 are pushed into the fixing space 130 of the fixing part 13 of the plug-in body 1 for positioning. This causes the guide groove 213 of the terminal base 21 to be aligned and pushed along the guide rail 1301 in the fixing space 130 of the plug-in body 1, and the front mating end 211 of the terminal base 21 is fixed at the front edge of the plug-in space 120 of the plug-in body 1. The fixing element 32 can then pass through the through hole 31 of the telescopic sleeve 3 and be locked in through the screw hole 110 of the plug-in body 1, thereby abutting and fixing it at the groove 212 of the terminal base 21. Positioning is formed on the cross-section 2142 of the fixing ring 214. The telescopic sleeve 3 can be in a movable telescopic state outside the plug-in part 12 of the plug-in body 1 by the elastic support of the elastic element 4. Then, another locking element 133 is locked into the cross-section 61 of the positioning ring 6 on the cable 5 through the locking hole 131 of the plug-in body 1 to form a positioning. At this time, the convex buckling part 71 of the insulating sleeve 7 can be fixed in the annular groove 132 on the outer diameter of the fixing part 13 of the plug-in body 1 to form a set positioning. Through the above steps, the cable electrical connector can be assembled into a whole.

[0019] Please refer to Figures 2, 4, and 6. Because the present invention fixes both the plug-in body 1 and the terminal block 21 together through the fixing element 32, when the docking connector is used to plug and unplug the cable connector of the present invention, the terminal block 21 will not cause rotation or backward movement in the plugging space 120 and fixing space 130 within the plug-in body 1 due to repeated plugging and unplugging.

[0020] Please refer to Figures 4 and 6. As can be clearly seen from the figures, the plurality of conductor cores 51 of the present invention are fixed on the welding ends 222 of each plug terminal 22 and are glued to the welding area to form a glue seat 23. The present invention can also be made by molding together at the outer diameter of the annular groove 132 of the fixing part 13 of the plug seat body 1 and the outer diameter of the cable 5. However, the above embodiments are not intended to limit the scope of the patent application of the present invention. All other equivalent changes and modifications made without departing from the spirit of the technology disclosed in the present invention should be included in the patent scope covered by the present invention.

[0021] Please refer to Figures 5 and 6. As can be clearly seen from the figures, the insulating sleeve 7 of the present invention can be directly fixed in the annular groove 132 on the outer diameter of the fixing part 13 of the plug-in body 1 with the fastening part 71 to form a fitted positioning. Alternatively, it can be molded together with the outer diameter of the annular groove 132 of the fixing part 13 of the plug-in body 1 and the outer diameter of the cable 5. If it is molded as a single piece, the outer diameter of the fixing part 13 will form a high and low step difference, causing the insulating sleeve 7 to form an up and down turning state at its inner diameter after the single piece is formed, which can effectively solve the problem. When the cable 5 is pulled away from or rotated from the plug terminal 22, the solder joint will peel off and break, which strengthens the overall pull-out fixing force. In addition, since the insulating sleeve 7 covers the outside of the fixing part 13 and the locking element 133, it can further prevent the locking element 133 from being accidentally loosened or falling off due to vibration. However, the above embodiments are not intended to limit the scope of the patent application of this invention. All other equivalent changes and modifications made without departing from the spirit of the technology disclosed in this invention should be included in the patent scope covered by this invention.

[0022] The above detailed description is only a preferred embodiment of the present invention. However, this embodiment is not intended to limit the scope of the patent application of the present invention. All other equivalent changes and modifications made without departing from the spirit of the art disclosed in the present invention should be included in the patent scope covered by the present invention.

[0023] In summary, the cable connector and its assembly method described above in this invention can indeed achieve their effects and purposes. Therefore, this invention is indeed a highly practical invention and meets the application requirements for an invention patent. Therefore, this application is filed in accordance with the law, and we hope that the Examination Board will grant this application as soon as possible to protect the inventor's hard work. If the Board has any questions, please do not hesitate to write to us for guidance. The inventor will do his best to cooperate. Thank you for your help.

Claims

1. A cable connector, comprising a socket body, a terminal group, a telescopic sleeve, and a resilient element, wherein: The connector body is formed as a hollow tube. The two sides of the connector body are a plug-in part and a fixing part, respectively. The outer diameter surface of the rear side of the fixing part is provided with a locking hole, and there is a plug-in space in the hollow part of the plug-in part. The hollow part of the fixing part is formed with a fixing space that extends through the plug-in space. A locking element is provided that can be locked into the locking hole of the fixing part of the connector body and abut against the preset cable to form a positioning. The terminal block includes a terminal holder with a plurality of plug-in terminals positioned therethrough, wherein the mating end of the terminal holder is located in the plug-in space of the plug-in body, and the soldering ends of each of the plurality of plug-in terminals on one side are located outside the terminal holder; and The telescopic sleeve has a limiting space in its hollow part, and is provided with an elastic element located between the limiting space of the telescopic sleeve and the outer diameter of the plug-in part of the plug-in body, and the rear side of the telescopic sleeve is movably positioned at the outer diameter of the plug-in body to form a positioning.

2. A cable connector, comprising a socket body, a terminal group, a telescopic sleeve, an elastic element, and a cable fitted with a positioning ring and an insulating sleeve, wherein: The connector body is formed as a hollow tube. The two sides of the connector body are a plug-in part and a fixing part, respectively. The outer diameter surface of the rear side of the fixing part is provided with a locking hole, and there is a plug-in space in the hollow part of the plug-in part. The hollow part of the fixing part is formed with a fixing space that extends through the plug-in space. The terminal block includes a terminal block with a plurality of plug terminals positioned through it, and the mating end of the terminal block is located in the plug space of the plug body, while the soldering ends on one side of the plurality of plug terminals are located outside the terminal block, and the plurality of conductor wires of the cable are soldered to each of the soldering ends of the plurality of plug terminals to form an electrical connection. The telescopic sleeve has a limiting space formed in its hollow part, and is provided with an elastic element located between the limiting space of the telescopic sleeve and the outer diameter of the insertion part of the plug-in seat, thereby positioning the rear side of the telescopic sleeve movably at the outer diameter of the plug-in seat; and The cable, fitted with the positioning ring and the insulating sleeve, is locked in the locking hole of the fixing part of the plug-in body by the locking element and is held against the positioning ring to form a positioning, so that the insulating sleeve covers the outside of the fixing part and the locking element.

3. The cable connector as described in claim 1 or 2, wherein the plug body has a base at its center, the plug body has a stepped stop portion that curves downward between the base and the plug portion, and the telescopic sleeve has a protruding abutment portion at the inner diameter of the limiting space, so that the two ends of the elastic element abut against the stop portion and the abutment portion respectively.

4. The cable connector as described in claim 3, wherein the outer diameter of the mating end of the terminal block is integrally molded with a retaining ring, so that the retaining element is locked into the screw hole of the base of the plug body and abuts against the retaining ring to form a positioning.

5. The cable connector as claimed in claim 1 or 2, wherein the terminal group includes the terminal block and the plurality of plug terminals, the terminal block having a plurality of through-hole receiving holes.

6. The cable connector as claimed in claim 1 or 2, wherein the terminal group includes the terminal base and the plurality of plug terminals, the terminal base having a plurality of through-hole receiving holes and a stepped surface formed at the outer diameter of the mating end.

7. The cable connector as described in claim 1 or 2, wherein the hollow portion of the plug body has a plugging space and a plurality of axially equidistant guide blocks are provided on the outer diameter.

8. The cable connector as described in claim 1 or 2, wherein the hollow portion of the plug body has a plugging space and snap holes are provided on both sides of the outer diameter.

9. The cable connector as claimed in claim 2, wherein the adhesive base is provided at the welding area of ​​each of the welding ends of the plurality of conductors of the cable being soldered to the plurality of plug terminals, and the adhesive base is fixed to the welding area by means of insulating adhesive bonding or molding.

10. The cable connector as claimed in claim 1 or 2, wherein the fixed space of the plug body is provided with an axially extending guide rail, and the bottom of the terminal block is provided with an axially extending guide groove that can slide on the guide rail.

11. The cable connector as claimed in claim 2, wherein the positioning ring has a cross-section such that the locking element, after being locked into the locking hole of the fixing portion of the plug body, abuts against the cross-section of the positioning ring to form a positioning.

12. The cable connector as claimed in claim 1 or 2, wherein the telescopic sleeve has a through hole on its outer diameter surface.

13. A cable connector assembly method, comprising a socket body, a terminal group, a telescopic sleeve, an elastic element, and a cable fitted with a positioning ring and an insulating sleeve, the assembly steps including: First, the multiple plug terminals of the terminal group are inserted into the receiving holes of the terminal block to form a positioning, with the multiple soldering ends located outside the terminal block. Then, the positioning ring and the insulating sleeve are sequentially fitted onto the outer diameter of the cable, and the positioning ring is clamped onto the cable for positioning. Next, the multiple conductor cores are soldered to the soldering ends corresponding to the multiple plug terminals to form a fixation, and an insulating adhesive is used to fix or mold a base in the soldering area. An elastic element is then placed in the limiting space of the telescopic sleeve and on the outer diameter of the plug-in portion of the plug-in body. The rear side of the telescopic sleeve is movably positioned at the rear edge of the outer diameter of the plug-in body to form a positioning, so that the two ends of the elastic element abut against the outer diameter of the plug-in body and the inner diameter of the telescopic sleeve to form an elastic support state for use. The terminal group and the cable, formed by the terminal block with the assembled multiple plug terminals, are pushed into the fixed space of the fixed part of the plug body and positioned. The front mating end of the terminal block is fixed at the front edge of the plug space of the plug body. The fixing element can be locked into the screw hole of the plug body and fixed at the terminal block. The telescopic sleeve can be moved and extended outside the plug part of the plug body by the elastic support of the elastic element. Another locking element is locked into the locking hole of the plug body and fixed at the positioning ring on the cable. At this time, the convex fastening part of the insulating collar can be fixed on the outer diameter of the fixed part of the plug body. Through the above steps, the cable connector can be assembled into a whole.

14. The cable connector assembly method as described in claim 13, wherein the plug body has a base at its center, the plug body has a stepped stop portion that curves downward between the base and the plug portion, and the telescopic sleeve has a protruding abutment portion at the inner diameter of the limiting space, so that the two ends of the elastic element abut against the stop portion and the abutment portion respectively.

15. The cable connector assembly method as described in claim 13, wherein the outer diameter surface of the mating end of the terminal block is formed with a groove.

16. The cable connector assembly method as described in claim 15, wherein the outer diameter of the terminal block is integrally molded with a retaining ring, so that the retaining element is locked into the screw hole of the plug body and abuts against the retaining ring to form a positioning.

17. The cable connector assembly method as described in claim 13, wherein the locking element is engaged in the locking hole of the fixing portion of the plug body and abuts against the positioning ring to form a positioning.

18. The cable connector assembly method as described in claim 14, wherein the screw hole provided on the surface of the plug body is located at the base position.

19. The cable connector assembly method as described in claim 13, wherein the insulating sleeve has an annular protrusion of the fastening portion, and the outer diameter of the fixing portion of the plug body has an annular groove, so that the fastening portion is fixed in the annular groove for a fitting and positioning.

20. The cable connector assembly method as described in claim 13, wherein the insulating sleeve has an annular protrusion of the fastening portion, and the outer diameter of the fixing portion of the plug body has an annular groove, and the outer diameter of the annular groove and the outer diameter of the cable are molded together.

21. The cable connector assembly method as described in claim 13, wherein the fixed space of the plug body is provided with an axially extending guide rail, and the bottom of the terminal block is provided with an axially extending guide groove that can slide on the guide rail.

22. The cable connector assembly method as described in claim 13, wherein the telescopic sleeve has a through hole on its outer diameter surface, the through hole being for the passage of a fixing element.

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