Cable connector and method of assembling the same

Abstract

The invention provides a cable connector and its assembling method, which comprises a plug-in seat body, a terminal set, an elastic element, a telescopic sleeve and a cable with a positioning ring and an insulating sleeve. A screw hole is arranged on the central surface of the plug-in seat body. The two sides of the plug-in seat 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. The terminal set comprises a terminal seat with a plurality of plug-in terminals arranged therethrough. The butt joint end of the terminal seat is located in the plug-in space of the plug-in seat body. The welding end is located on the outer side of the terminal seat and is welded with the conductor core of the cable. A rubber seat is arranged at the welding area between the conductor core and each welding end. A fixed sleeve is movably connected to one side of the terminal seat and is then sleeved on the outer side of the rubber seat. The elastic element and the telescopic sleeve are sequentially sleeved on the outer diameter of the plug-in part of the plug-in seat body. In this way, the plug-in seat body, the terminal seat and the cable can be fixed together, thereby achieving the effects of simple structure, stable plug-in and firm 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, thereby ensuring the overall structural stability and achieving rapid assembly and maintaining a high pass rate, thus optimizing the process and reducing costs. Background Technology

[0002] Connectors are general-purpose 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 evolved into various types depending on the products they are used in, their power rating, and the environment in which they are used. They are widely used in consumer electronics such as computers, laptops, and smartphones, as well as in home appliances, telecommunications and communication equipment, automobiles, industry, transportation, and aviation.

[0003] Furthermore, current conventional multi-core cable connectors provide multiple cores of a cable and corresponding plug terminals to form an electrical connection by soldering. For reference, there is an existing multi-core cable connector in PCT Patent Publication No. WO2009 / 133972A, while 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 existing problems, it 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, become detached, or short-circuit. Moreover, due to the large number of components, existing 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, continuously created and modified the invention patent for this cable connector and its assembly method.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A cable connector, characterized in that it comprises 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:

[0007] The connector body is formed into 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. A fixing space is formed in the hollow part of the fixing part that extends through the plug-in space.

[0008] The terminal block includes a terminal holder through which a plurality of plug terminals are positioned, and the mating end of the terminal holder is located in the plug-in space of the plug-in body. The welding ends of the plurality of plug terminals are located outside the terminal holder, and the plurality of conductor cores of the cable are welded to the welding ends of the plurality of plug terminals to form an electrical connection. A glue seat is provided at the welding area of ​​the plurality of conductor cores of the cable and the welding ends. A fixed sleeve is movably engaged with one side of the terminal holder and then fitted onto the glue seat.

[0009] 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 body. The rear side of the telescopic sleeve is movably positioned at the outer diameter of the plug-in body to form a positioning; and

[0010] After a locking element is locked into the locking hole of the fixing part of the plug-in body, it abuts against the positioning ring to form a positioning, so that the insulating sleeve covers the outside of the fixing part and the locking element.

[0011] The cable connector, wherein: the center of the plug body is a base, the plug body is provided with a downwardly curved stepped stop between the base and the plug part, and the telescopic sleeve is provided with a protruding abutment at the inner diameter of the limiting space, so that the two ends of the elastic element abut against the stop and the abutment respectively.

[0012] The cable connector wherein: the outer diameter of the side opposite to the mating end on the terminal block is integrally molded with a fixing ring piece, and the fixing element is locked into the screw hole of the base of the plug body and abuts against the fixing ring piece to form a positioning.

[0013] The cable connector, wherein: the terminal group includes the terminal block and the plurality of plug terminals, and the terminal block is provided with a plurality of through receiving holes.

[0014] The cable connector, wherein: the terminal group includes the terminal base and the plurality of plug terminals, the terminal base is provided with a plurality of through receiving holes, and a stepped surface is formed at the outer diameter of the mating end.

[0015] The cable connector, wherein: the hollow portion of the plug-in body has a plug-in space, and a plurality of axially equidistant guide blocks are provided on the outer diameter.

[0016] The cable connector, wherein: the hollow portion of the plug-in body has a plug-in space, and snap holes are provided on both sides of the outer diameter.

[0017] The cable connector wherein: the plurality of conductor cores of the cable are soldered to the soldering area of ​​each of the soldering ends of the plurality of plug terminals, and the adhesive base is fixed to the soldering area by means of insulating adhesive bonding or molding.

[0018] The cable connector wherein: an axially extending guide rail is provided in the fixed space of the plug body, and an axially extending guide groove is provided at the bottom of the terminal block that can slide on the guide rail.

[0019] The cable connector wherein: the terminal block has a supporting surface formed on the outer diameter surface edge on the side opposite to the mating end, and a fastening groove is provided on the bottom guide groove; the fixing sleeve has a supporting part and a hook at the upper and lower positions on the same side, and the supporting part and the hook abut against the supporting surface and are fastened into the fastening groove of the guide groove to form a positioning.

[0020] The cable connector wherein: the positioning ring has a cross-section, and the locking element is locked into the locking hole of the fixing part of the plug body and abuts against the cross-section of the positioning ring to form a positioning.

[0021] The cable connector wherein: the screw hole on the surface of the plug body is located at the central base position, and the outer diameter of the terminal block is integrally molded with a fixing ring, and the fixing element is locked into the screw hole of the plug body and abuts against the fixing ring of the terminal block to form a positioning.

[0022] The cable connector wherein the telescopic sleeve has a through hole on its outer diameter surface.

[0023] A cable connector assembly method, characterized in that it includes a connector body, a terminal group, a telescopic sleeve, an elastic element, and a cable fitted with a positioning ring and an insulating sleeve, and the assembly steps include:

[0024] First, the multiple plug terminals of the terminal group are inserted into the receiving holes of the terminal block to form a positioning, and the multiple soldering ends are 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 ring is clamped onto the cable to form a positioning. Next, the multiple conductor cores are soldered to the soldering ends corresponding to the multiple plug terminals to form a fixation. A fixing sleeve is movably engaged on one side of the terminal block, and a glue seat is formed in the soldering area by adhesive bonding or molding. An elastic element is placed in the limiting space of the telescopic sleeve and on 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, 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. To use, continue pushing the terminal group formed by the terminal block with the assembled multiple plug terminals and the cable into the fixed space of the fixed part of the plug body for positioning, and fix the front mating end of the terminal block at the front edge of the plug space of the plug body. Then, the fixing element can be locked into the screw hole of the plug body to fix it to the terminal block for positioning. In addition, the telescopic sleeve can be moved and extended outside the plug part of the plug 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 body to form positioning. At this time, the convex fastening part of the insulating collar can be fixed to the outer diameter of the fixed part of the plug body for positioning. Through the above steps, the cable connector can be assembled into a whole.

[0025] The cable connector assembly method is described above, wherein: the center of the plug body is a base, the plug body is provided with a downwardly curved stepped stop between the base and the plug part, and the telescopic sleeve is provided with a protruding abutment at the inner diameter of the limiting space, so that the two ends of the elastic element abut against the stop and the abutment respectively.

[0026] The cable connector assembly method wherein: a fixing ring is integrally molded on the outer diameter of the terminal block opposite to the mating end, so that the fixing element is locked into the screw hole of the base of the plug body and abuts against the outer diameter of the terminal block to form a positioning.

[0027] The cable connector assembly method wherein: the positioning ring has a cross-section, and the locking element is locked into the locking hole of the fixing part of the plug-in body and abuts against the cross-section of the positioning ring to form a positioning.

[0028] The cable connector assembly method wherein the screw hole on the surface of the plug body is located at the base.

[0029] The cable connector assembly method wherein: the insulating sleeve has a ring-shaped fastening part, and the outer diameter of the fixing part of the plug body has a ring groove, so that the fastening part is fixed in the ring groove to form a fitting and positioning.

[0030] The cable connector assembly method wherein: the insulating sleeve has a ring-shaped fastening portion, and the outer diameter of the fixing portion of the plug body has a ring groove, and the outer diameter of the ring groove and the outer diameter of the cable are molded together.

[0031] The cable connector assembly method wherein: an axially extending guide rail is provided in the fixed space of the plug-in body, and an axially extending guide groove is provided at the bottom of the terminal block that can slide on the guide rail.

[0032] The cable connector assembly method wherein: a supporting surface is formed on the outer diameter surface edge of the terminal block opposite to the mating end, and a fastening groove is provided on the bottom guide groove; a supporting part and a hook are provided on the upper and lower positions on the same side of the fixing sleeve, and the supporting part and the hook abut against the supporting surface and are fastened into the fastening groove of the guide groove to form a positioning.

[0033] The cable connector assembly method wherein: the telescopic sleeve has a through hole on its outer diameter surface, and the through hole allows a fixing element to pass through.

[0034] The main advantage of the cable connector of this invention lies in the fact that the connector body has a plug-in part and a fixing part on both sides. The fixing part has a locking hole on the outer diameter surface of the rear side, and a plug-in space is formed in the hollow part of the plug-in part. The fixing part has a fixing space that extends through the plug-in space. The terminal group includes a terminal holder with a plurality of plug-in terminals inserted and positioned therethrough. The mating end of the terminal holder is located in the plug-in space of the connector body, while the soldering end is located outside the terminal holder. A plurality of conductor cores of the cable are soldered to the soldering ends of the corresponding plug-in terminals to form a fixation. Multiple conductor cores are soldered to multiple plug terminals. Each soldering area has a rubber seat, and a fixed sleeve is movably engaged with one side of the terminal block and then fitted onto the rubber seat. Elastic elements and a telescopic sleeve are sequentially fitted on the outer diameter of the plug-in part of the plug-in body. 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 effectively prevents the cable from shifting when pulled by external force, thereby avoiding the occurrence of breakage or peeling at the soldering position of each plug terminal and the corresponding conductor core.

[0035] A secondary advantage of the cable connector of the present invention is that the plug-in body can be fixed together with the terminal block by means of the fixing element and the screw hole of the plug-in 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-in body due to repeated plugging and unplugging.

[0036] The main advantage of the cable connector assembly method of the present invention lies in providing 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 ends located outside the terminal block; then, sequentially fitting a positioning ring and an insulating sleeve onto the outer diameter of the cable, clamping the ring on the cable for positioning; next, soldering a plurality of conductor cores to the soldering ends of the corresponding plug terminals to form a fixation, and forming a glue base in the soldering area by adhesive bonding or molding; then, movably engaging a fixing sleeve on one side of the terminal block and fitting it onto the glue base; furthermore, placing an elastic element into the limiting space of the telescopic sleeve and on 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 continuing to assemble the cable connector. The terminal group formed by the terminal block with multiple plug terminals and the cable are pushed into the fixed space of the fixed part of the plug body for positioning, and the front mating end of the terminal block is fixed at the front edge of the plug space of the plug body. Then, the fixing element can be locked into the screw hole of the plug body to fix it at the terminal block for positioning. The telescopic sleeve can be moved and extended outside the plug part of the plug body by the elastic support of the elastic element. Then, the locking element can be locked into the cable through the locking hole of the plug 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 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.

[0037] Another advantage 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 abutted against the cross section of the positioning ring to form a stable positioning. 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 terminal and the corresponding conductor core. Attached Figure Description

[0038] Figure 1 This is a perspective view of the present invention.

[0039] Figure 2 This is an exploded perspective view of the present invention.

[0040] Figure 3 This is an exploded perspective view of the terminal assembly of the present invention.

[0041] Figure 4 This is an exploded perspective view of the present invention during assembly.

[0042] Figure 5 This is an exploded perspective view of the present invention during the assembly of the insulating sleeve.

[0043] Figure 6 This is a side cross-sectional view of the present invention.

[0044] Explanation of reference numerals in the attached drawings: 1-Plug-in body; 11-Base; 110-Screw hole; 1101-Stop part; 12-Plug-in part; 120-Plug-in space; 121-Guide block; 122-Snap hole; 13-Fixing part; 130-Fixing space; 1301-Guide rail; 131-Locking hole; 132-Annular groove; 133-Locking element; 2-Terminal group; 21-Terminal seat; 210-Accommodation hole; 211-Mating end; 2111-Stepped surface; 212-Groove; 213-Guide groove; 2131- 214-Fitting groove; 215-Fixing ring; 2151-Holding part; 2152-Cut surface; 22-Plug-in terminal; 221-Plug-in end; 222-Welding end; 23-Glue base; 24-Fixing sleeve; 241-Hook; 242-Fitting part; 3-Telescopic sleeve; 30-Limiting space; 301-Stopping part; 31-Through hole; 32-Fixing element; 4-Elastic element; 5-Cable; 51-Conductor core; 6-Positioning ring; 61-Cut surface; 7-Insulating sleeve; 71-Fitting part. Detailed Implementation

[0045] To achieve the above objectives and effects, the technical means, construction, 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 provide a complete understanding.

[0046] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown in the figure, 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:

[0047] The connector 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 has a screw hole 110. A downwardly curved stepped stop 1101 is formed between the base 11 and the connector 12. A connector space 120 is formed in the hollow part of the connector 12. A plurality of axially equidistant guide blocks 121 are formed on the outer diameter, and buckle holes 122 are provided on both sides for use with... The connector is used for guiding and positioning during insertion and removal of the cable connector of the present invention. The fixed part 13 has a fixed space 130 that extends through the insertion space 120. The fixed 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. The locking hole 131 is used for locking the locking element 133.

[0048] 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 formed on the outer diameter of its mating end 211. On the opposite side of the mating end 211, a groove 212 and a retaining surface 214 extending outward to the edge are formed on the outer diameter surface of the terminal block 21. At the location of the groove 212, a metal fixing ring 215 with upper and lower retaining portions 2151 is integrally molded on the outer diameter of the terminal block 21. The fixing ring 215 has a cut surface 2152 flush with the groove 212. This fixing ring 215 structure further increases the overall strength after locking. In addition, a guide groove 213 is axially extended at the bottom and can slide on the guide rail 1301. The groove 213 is provided with a fastening groove 2131, and the plug ends 221 of a plurality of plug terminals 22 are inserted and positioned in the receiving hole 210, with the welding ends 222 exposed on the outside of the groove 212 adjacent to the terminal base 21. This allows the plurality of conductor cores 51 of the cable 5 to be welded to the welding ends 222 of the plug terminals 22 to form an electrical connection and be fixed as one piece. The cable is then glued to the welding area with insulating glue to form a glue base 23. A fixing sleeve 24 is provided on the outside of the glue base 23. On the same side of the fixing sleeve 24, there are abutment parts 242 and hooks 241 at the upper and lower positions. The abutment parts 242 and the hooks 241 are respectively abutted against the abutment surface 214 and fastened into the fastening groove 2131 of the guide groove 213 for positioning.

[0049] The telescopic sleeve 3 is a hollow tube, with the rear side of the through hole 31 of the telescopic sleeve 3 positioned at 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 is for 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 2152 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.

[0050] Please see Figure 2 , Figure 5 , Figure 6 As shown, the positioning ring 6 has a cross-section 61, and 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. The plug-in body 1 and the cable 5 are 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, and thus avoid the loss of the welding position of each plug terminal 22 and the corresponding conductor core 51.

[0051] Please see Figure 1 , Figure 5 , Figure 6 As shown, 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 a ring-shaped fastening part 71 for positioning.

[0052] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6As shown in the figure, 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 exposing the soldering ends 222 on the outside of 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; next, soldering a plurality of conductor cores 51 to the soldering ends 222 of the corresponding plug-in terminals 22 to form a fixation, and using insulating adhesive to fix them to the soldering area to form an adhesive base 23, and then attaching the fixing sleeve 24. The abutment portion 242 and the hook 241 on the same side abut against the abutment surface 214 and are respectively engaged in the fastening groove 2131 of the guide groove 213 for positioning. Then, the fixing sleeve 24, which has been assembled on the terminal block 21, is fitted onto the outside of the rubber 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 portion 12 of the insertion base 1. The rear side of the through hole 31 of the telescopic sleeve 3 is positioned on the rear edge of the base 11 for positioning. The two ends of the elastic element 4 abut against the stop portion 1101 of the base 11 and the stop portion 301 at the inner diameter of the telescopic sleeve 3 to form an elastic support state for use. Please refer to Figure 1 , Figure 4 , Figure 5 , Figure 6 As shown, the terminal group 2, which is formed by the terminal block 21 with multiple plug terminals 22 and fixing sleeves 24, and the cable 5 are pushed into the fixing space 130 of the fixing part 13 of the plug body 1. This causes the guide groove 213 of the terminal block 21 to be aligned and pushed along the guide rail 1301 in the fixing space 130 of the plug body 1, and the front mating end 211 of the terminal block 21 is fixed at the front edge of the plug space 120 of the plug 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 body 1, thereby holding and fixing the terminal block. Positioning is formed on the cross-section 2152 of the fixing ring 215 at the groove 212 of the seat 21. 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.

[0053] Please see Figure 2 , Figure 4 , Figure 6As shown, because the present invention fixes both the plug-in body 1 and the terminal block 21 together with 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 the problem of rotation or backward movement in the plugging space 120 and fixing space 130 in the plug-in body 1 due to repeated plugging and unplugging.

[0054] Please see Figure 4 , Figure 6 As shown in the figure, it can be clearly seen that the welding ends 222 of the multiple conductor cores 51 of the present invention are fixed on the welding ends 222 of each plug terminal 22, and are fixed to the welding area with insulating glue 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. Therefore, since the glue seat 23 is fitted on the outside with a fixing sleeve 24 and movably engaged with the terminal seat 21 for positioning, the fixing sleeve 24 can hold and position it at the hollow inner diameter wall of the plug seat body 1, thereby making the overall assembly of the terminal group 2, cable 5 and plug seat body 1 more stable and without gaps. However, the above specific 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.

[0055] Please see Figure 5 , Figure 6 As shown in the figure, it can be clearly seen that 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 set for 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, so that the insulating sleeve 7 will form an up and down turning state at its inner diameter after being integrally molded. This can effectively solve the problem of the welding point peeling and breaking when the cable 5 and the plug-in terminal 22 are pulled apart or rotated, thereby strengthening 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.

[0056] The above description is illustrative only and not restrictive of the present invention. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the claims, and all such modifications, variations or equivalents will fall within the protection scope of the present invention.

Claims

1. A cable connector, characterized in that: Includes a connector body, terminal block, telescopic sleeve, elastic element, and cable fitted with a positioning ring and insulating sleeve, wherein: The connector body is formed into 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. A fixing space is formed in the hollow part of the fixing part that extends through the plug-in space. The terminal block includes a terminal holder through which a plurality of plug terminals are positioned, and the mating end of the terminal holder is located in the plug-in space of the plug-in body. The welding ends of the plurality of plug terminals are located outside the terminal holder, and the plurality of conductor cores of the cable are welded to the welding ends of the plurality of plug terminals to form an electrical connection. A glue seat is provided at the welding area of ​​the plurality of conductor cores of the cable and the welding ends. A fixed sleeve is movably engaged with one side of the terminal holder and then fitted onto the glue seat. 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 body. The rear side of the telescopic sleeve is movably positioned at the outer diameter of the plug-in body to form a positioning; and After a locking element is locked into the locking hole of the fixing part of the plug-in body, it abuts against the positioning ring to form a positioning, so that the insulating sleeve covers the outside of the fixing part and the locking element.

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

3. The cable connector as described in claim 2, characterized in that: The outer diameter of the terminal block opposite to the mating end is integrally molded with a fixing ring. The outer diameter surface of the base is provided with a screw hole. A fixing element is locked into the screw hole of the base of the plug body and abuts against the fixing ring to form a positioning.

4. The cable connector as described in claim 1, characterized in that: The terminal block includes the terminal block and the plurality of plug terminals, and the terminal block is provided with a plurality of through receiving holes.

5. The cable connector as described in claim 1, characterized in that: The terminal block includes the terminal block and the plurality of plug terminals. The terminal block has a plurality of through-hole receiving holes and a stepped surface is formed at the outer diameter of the mating end.

6. The cable connector as described in claim 1, characterized in that: The socket has a socket space in the hollow part of the socket body, and a plurality of guide blocks are provided at axial equidistant distances on the outer diameter.

7. The cable connector as described in claim 1, characterized in that: The plug-in portion of the connector has a plug-in space in its hollow part, and fastening holes are provided on both sides of its outer diameter.

8. The cable connector as described in claim 1, characterized in that: The cable has multiple conductor cores welded to the welding area of ​​each of the multiple plug terminals, and the adhesive base is fixed to the welding area by means of insulating adhesive bonding or molding.

9. The cable connector as described in claim 1, characterized in that: The fixed space of the connector 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.

10. The cable connector as claimed in claim 1, characterized in that: The terminal block has a supporting surface formed on the outer diameter surface edge on the side opposite to the mating end, and a fastening groove is provided on the bottom guide groove. The fixing sleeve has a supporting part and a hook at the upper and lower positions on the same side, and the supporting part and the hook abut against the supporting surface and are fastened into the fastening groove of the guide groove to form a positioning.

11. The cable connector as claimed in claim 1, characterized in that: The positioning ring has a cross-section, and the locking element is locked into the locking hole of the fixing part of the plug-in body and abuts against the cross-section of the positioning ring to form a positioning.

12. The cable connector as described in claim 2, characterized in that: The screw hole on the surface of the connector is located at the central base. The outer diameter of the terminal block is integrally molded with a fixing ring. A fixing element is locked into the screw hole of the connector and abuts against the fixing ring of the terminal block to form a positioning.

13. The cable connector as claimed in claim 1, characterized in that: The telescopic sleeve has a perforation on its outer diameter surface.

14. A method for assembling a cable connector, characterized in that: The assembly process includes the following steps: (1) A connector body, a terminal block, a telescopic sleeve, an elastic element, and a cable fitted with a positioning ring and an insulating sleeve. First, the multiple plug terminals of the terminal group are inserted into the receiving holes of the terminal block to form a positioning, and the multiple soldering ends are 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 to form a positioning. Next, the multiple conductor cores of the cable are soldered to the soldering ends corresponding to the multiple plug terminals to form a fixation. A fixing sleeve is movably engaged on one side of the terminal block, and a glue seat is formed in the soldering area by adhesive bonding or molding. An elastic element is placed in the limiting space of the telescopic sleeve and on 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, 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. In the anti-collision state, the terminal group formed by the terminal block with the multiple plug terminals and the cable 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 to fix it to the terminal block and form a positioning. In addition, the telescopic sleeve can be moved and extended outside the plug part of the plug 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 body to form a positioning. At this time, the convex fastening part of the insulating collar can be fixed to the outer diameter of the fixed part of the plug body to form a positioning. Through the above steps, the cable connector can be assembled into a whole.

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

16. The cable connector assembly method as described in claim 14, characterized in that: A fixing ring is integrally molded on the outer diameter of the terminal block opposite to the mating end, so that the fixing element is locked into the screw hole of the plug body and abuts against the outer diameter of the terminal block to form a positioning.

17. The cable connector assembly method as described in claim 14, characterized in that: The positioning ring has a cross-section, and the locking element is locked into the locking hole of the fixing part of the plug-in body and abuts against the cross-section of the positioning ring to form a positioning.

18. The cable connector assembly method as described in claim 15, characterized in that: The screw holes on the surface of the connector are located at the base.

19. The cable connector assembly method as described in claim 14, characterized in that: The insulating sleeve has a ring-shaped fastening part, and the outer diameter of the fixing part of the plug-in body has a ring groove, so that the fastening part is fixed in the ring groove to form a fitting and positioning.

20. The cable connector assembly method as described in claim 14, characterized in that: The insulating sleeve has a ring-shaped fastening part, and the outer diameter of the fixing part of the plug-in body has a ring groove, and the outer diameter of the ring groove and the outer diameter of the cable are molded together.

21. The cable connector assembly method as described in claim 14, characterized in that: The fixed space of the connector 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 14, characterized in that: The terminal block has a supporting surface formed on the outer diameter edge opposite to the mating end, and a fastening groove is provided on the bottom guide groove. Supporting parts and hooks are provided on the upper and lower positions on the same side of the fixing sleeve, and the supporting parts and the hooks are respectively abutted against the supporting surface and fastened into the fastening groove of the guide groove to form a positioning.

23. The cable connector assembly method as described in claim 14, characterized in that: The telescopic sleeve has a through hole on its outer diameter surface, through which a fixing element can pass.

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