Wire end connector

Abstract

The invention relates to the technical field of electric connection, in particular to a wire end connector and a preparation method thereof, the wire end connector comprises a shell, a metal shell, a power connection assembly, an inner module, an outer module, a connecting wire and a lock catch assembly, the shell is provided with an insertion cavity and an injection molding cavity, one end of the injection molding cavity is communicated with the insertion cavity, and the lock catch assembly is arranged on the upper side of the shell; the metal shell is arranged in the plugging cavity, the power connection assembly is arranged in the metal shell, the metal shell is used for fixing the power connection assembly in the plugging cavity, and one end of the power connection assembly extends towards a port of the plugging cavity; one end of the connecting wire is connected with the power connection assembly, the inner module wraps one end of the metal shell through injection molding and wraps one end of the connecting wire and one end of the power connection assembly, the inner module is arranged inside the injection molding cavity, and the outer module is formed outside the injection molding cavity through injection molding and wraps the inner module and the connecting wire; according to the invention, the problems of stability and safety of the existing connector are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connection, and in particular to a wire end connector and a preparation method thereof. Background Art

[0002] The vehicle connector is an electronic component used to connect the internal and external devices of the vehicle. With the rapid development of the automobile industry. With the trend of automobile intelligence and networking, the number and types of vehicle connectors are also increasing. For example, in-vehicle entertainment systems, camera systems, navigation systems, automatic driving systems, etc. all require vehicle connectors to realize data transmission and power supply between devices. As an important part of the driving assistance system, the connector of the vehicle camera is also constantly evolving and improving. Higher requirements are put forward for the vehicle camera connector, which needs to have the characteristics of low power consumption and high efficiency.

[0003] In actual use, the existing vehicle-mounted wire end connector is prone to loosening and falling off at the power connection position, and the guide post has poor contact. Therefore, it is necessary to make new improvements to the existing vehicle-mounted wire end connector. Summary of the invention

[0004] To solve the above problems, the present invention uses an inner mold to protect the internal metal shell, power connection components and connecting wires through injection molding, and after injection molding, the stability and reliability of the connecting wires inside are ensured. The design of the outer mold covers the connecting wires and the outer shell so that the structure is integrated, and then the connector ensures durability and tensile strength during use. The wire end connector and preparation method solve the problems of stability and safety of existing connectors.

[0005] The technical solution adopted by the present invention is: a wire end connector, comprising an outer shell, a metal shell, an electrical connection component, an inner module, an outer module, a connecting wire and a locking component, wherein the outer shell is provided with a plug-in cavity and an injection molding cavity, one end of the injection molding cavity is communicated with the plug-in cavity, and the locking component is arranged on the upper side of the outer shell; the metal shell is arranged in the plug-in cavity, the electrical connection component is arranged in the metal shell, the metal shell is used to fix the electrical connection component in the plug-in cavity, and one end of the electrical connection component extends toward the port of the plug-in cavity; one end of the connecting wire is connected to the electrical connection component, the inner module is coated on one end of the metal shell by injection molding, and coats the connecting wire and one end of the electrical connection component, the inner module is arranged inside the injection molding cavity, and the outer module is outside the injection molding cavity by injection molding, and coats the inner module and the connecting wire.

[0006] A further improvement to the above scheme is that a plug connector is provided on the outside of the plug-in cavity of the shell, a plug-in guide strip is provided on the outer periphery of the plug connector, and a plug-in positioning boss is provided on the lower side of the plug connector; a reinforcement portion is provided between the plug connector and the injection cavity, and the reinforcement portion is used to separate the plug connector from the injection cavity.

[0007] A further improvement to the above solution is that a locking platform is provided on the upper side of the plug connector, and the locking assembly is provided on the locking platform.

[0008] A further improvement to the above scheme is that a limit rib is provided at the port of the plug-in cavity, the limit rib is used to block and limit the metal shell in the plug-in cavity, and an inclined chamfer is provided at the opening of the limit rib.

[0009] A further improvement to the above scheme is that the metal shell includes an upper shell and a lower shell, the upper shell and the lower shell are buckled together to form a buckling cavity, one end of the buckling cavity is used to fix the power connection component, the lower shell is provided with a contact cavity, one end of the contact cavity is communicated with the buckling cavity, one end of the power connection component extends toward the contact cavity; and a contact spring is provided on the wall of the contact cavity.

[0010] A further improvement to the above scheme is that matching buckles are provided on both sides of the upper shell, matching slots are provided on both sides of the lower shell, and the matching buckles and matching slots are engaged with each other; a fixed wire clamp is provided on the rear side of the metal shell, and the fixed wire clamp fixes the connecting wire by riveting.

[0011] A further improvement to the above scheme is that the power connection assembly includes an insulating module and a power connection element, the insulating module includes a first fixing member, a second fixing member and a wiring member, the first fixing member and the second fixing member are stacked up and down, the wiring member is arranged at the rear side of the first fixing member and the second fixing member, and connects the first fixing member with the second fixing member, and there are multiple power connection elements, and the multiple power connection elements are respectively arranged on the first fixing member and the second fixing member, and one end of the power connection element extends toward the metal shell, and the other end extends toward the wiring member.

[0012] A further improvement to the above scheme is that the first fixing member is provided with a first buckle, a first slot, a first positioning hole and a first positioning pin, and the second fixing member is provided with a second buckle, a second slot, a second positioning hole and a second positioning pin, the first buckle is used to cooperate with the second slot, the second buckle is used to cooperate with the first slot, the first positioning pin is used to cooperate with the second positioning hole, and the second positioning pin is used to cooperate with the first positioning hole.

[0013] A further improvement to the above scheme is that a first solder pad groove is provided on one side of the first fixing member, a second solder pad groove is provided on one side of the second fixing member, the wiring member is provided with a first wiring groove corresponding to the first solder pad groove, and a second wiring groove is provided corresponding to the second solder pad groove, the first solder pad groove is opposite to the first wiring groove, the second solder pad groove is opposite to the second wiring groove, the power connection element is provided with a wiring pad, the first solder pad groove and the second solder pad groove are both used to fix the wiring pad, and the connecting wire is welded to the wiring pad through the first wiring groove and the second wiring groove.

[0014] A further improvement to the above scheme is that the power connection element is provided with a fixed end and a plug-in end, a curved inclined surface is provided between the fixed end and the plug-in end, and the curved inclined surface is used to twist the plug-in end to be inclined at 45° with the fixed end; a guiding arc surface is provided at the port of the plug-in end; and the fixed end is provided on the first fixing member and the second fixing member.

[0015] A further improvement to the above scheme is that the inner mold includes an embedded part and an outer end part, the inner mold is formed by injection molding of insulating material, the embedded part is embedded in the injection molding cavity by injection molding to cover the metal shell, the connecting wire and one end of the power connection component, and one end of the outer end part abuts against the port of the injection molding cavity.

[0016] A further improvement to the above scheme is that the outer mold includes a front end and a rear end, the injection cavity is provided with an injection groove, the front end is filled with the injection groove and covers the outer end by injection molding on the outside of the injection cavity, and the rear end covers the connecting line.

[0017] A further improvement to the above scheme is that the lock assembly includes a pressing strip, a lock slide groove and a lock piece, one end of the pressing strip extends toward the lock slide groove, the pressing strip is provided with a locking slide groove, the locking slide groove is provided with a limiting buckle, the lock piece is slidably set on the lock slide groove, the lock piece includes a sliding portion, a pushing portion and a locking portion, the end of the locking portion is provided with a locking buckle, the sliding portion is used to be slidably set on the lock slide groove, the end of the sliding portion is provided with a limiting pressure buckle, the locking portion is slidably set on the locking slide groove, the pushing portion is used to push the locking portion to slide on the locking slide groove, the locking buckle is located at the front end of the limiting buckle for locking the object connector, and is located at the rear end of the locking buckle in an unlocked state.

[0018] A method for preparing a line end connector comprises the following steps: preparing an electrical connection component, riveting an electrical connection element with a fixing piece, then buckling the fixing piece to form the electrical connection component, then welding a connecting wire, welding the connecting wire with a wiring pad of the electrical connection element, performing solder joint detection after welding, then wrapping a high temperature resistant insulating tape around the connecting wire, then assembling a metal shell, placing the assembled electrical connection component in the metal shell, and fixing the connecting wire with a wire clamp of the metal shell by riveting; then injection molding the prepared iron shell, placing the metal shell in a mold, and molding the metal shell, the connecting wire and one end of the electrical connection component by injection molding, then assembling the injection molded structure into an outer shell, performing secondary injection molding, injecting an outer mold on the outside of an inner mold to cover the injection molding cavity and the connecting wire, and finally assembling a locking component, performing finished product detection, and completing the preparation.

[0019] The beneficial effects of the present invention are: Compared with the existing wire-end connector, the present invention adopts the method of inner mold injection molding and outer mold injection molding to design the connector. The inner mold is used to perform injection molding protection on the internal metal shell, power connection components and connecting wires, and the stability and reliability of the connecting wires inside are ensured after injection molding. The design of the outer mold covers the connecting wires and the outer shell, so that the structure is integrated, and the durability and tensile strength of the connector are ensured during use. The problems of stability and safety of the existing connectors are solved.

[0020] The structure of the plug-in cavity and the injection molding cavity of the shell design of the present invention is separated and connected, which not only facilitates the installation and positioning of internal components, but also enhances the sealing and protection level of the connector through the design of the injection molding cavity, effectively prevents the external environment from corroding the internal electrical connection part, and ensures the stability and safety of the electrical connection. Secondly, as a key structural component, the metal shell firmly carries the power connection component in the plug-in cavity, which not only provides the necessary mechanical support, but also ensures the efficient transmission of electrical signals through its conductive properties. At the same time, the design of the power connection component extending to the plug-in cavity port facilitates quick and accurate docking with external equipment and reduces the plug-in and pull-out force. The inner module tightly covers one end of the metal shell and the connecting wire and the power connection component through the injection molding process. This design not only enhances the fixity of the connecting wire and prevents the risk of disconnection caused by external force pulling, but also improves the insulation performance and weather resistance of the connector through the selection of materials and the control of the injection molding process, thereby extending the service life. The injection molding of the outer module not only achieves comprehensive coverage of the internal components, further improving the compactness and protection capabilities of the overall structure, but also gives the connector a good appearance texture and visual effect, meeting the aesthetic requirements in different application scenarios.

[0021] The method for preparing the wire end connector closely combines the power connection element and the fixing part through a fine riveting process to form a stable power connection assembly, ensuring the reliability of the electrical connection. The precise welding of the connecting wire and the connection pad of the power connection element, and the subsequent solder joint inspection, further enhance the stability and safety of the electrical connection. Wrapping the high temperature resistant insulating tape on the connecting wire effectively isolates the electrical risks in the high temperature environment, improves the insulation performance of the product and the safety of long-term use. The use of the metal shell and its riveting fixation with the connecting wire not only enhances the overall strength of the structure, but also provides additional physical protection. The first injection molding covers the metal shell, the connecting wire and one end of the power connection assembly, achieving good sealing and protection, while improving the appearance quality of the product. The application of secondary injection molding on the outer module further enhances the environmental adaptability of the product, such as waterproofing and dustproofing, while protecting the integrity of the internal structure. Finally, by assembling the lock assembly and testing the finished product, the assembly accuracy and functional integrity of the final product are ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the line end connector of the present invention; Figure 2 for Figure 1 A three-dimensional schematic diagram of the midline connector from another perspective; Figure 3 for Figure 1 A schematic diagram of the front view of the midline end connector; Figure 4 for Figure 1 An exploded view of the midline connector; Figure 5 for Figure 1 An exploded view of the midline connector from another perspective; Figure 6 for Figure 1 An exploded diagram of the structure of the midline connector; Figure 7 for Figure 1 An exploded diagram of the structure of the midline connector; Figure 8 for Figure 1 A schematic diagram of the structure of the locking assembly of the midline connector; Fig. 9 The figure is a schematic diagram of the preparation process of the wire end connector of the present invention.

[0023] Description of reference numerals: housing 1, plug-in cavity 11, limiting rib 111, chamfer 112, injection cavity 12, injection groove 121, plug connector 13, plug-in guide strip 131, plug-in positioning boss 132, reinforcement portion 133, locking platform 134; Metal shell 2, upper shell 21, matching buckle 211, lower shell 22, matching slot 221, buckle cavity 23, contact cavity 24, contact spring 241, fixed wire clip 25; The power connection component 3, the insulating module 31, the power connection element 32, the wiring pad 321, the fixed end 322, the plug end 323, the curved inclined surface 324, the guide arc surface 325, the first fixing member 33, the first buckle 331, the first slot 332, the first positioning hole 333, the first positioning pin 334, the first pad slot 335, the second fixing member 34, the second buckle 341, the second slot 342, the second positioning hole 343, the second positioning pin 344, the second pad slot 345, the wiring member 35, the first wiring slot 351, and the second wiring slot 352; Inner mold 4, inner embedded portion 41, outer end portion 42; Outer module 5, front end portion 51, rear end portion 52; Connecting line 6; The locking component 7, the pressing strip 71, the locking slide groove 711, the limiting buckle 712, the locking slide groove 72, the locking member 73, the sliding portion 731, the pushing portion 732, the locking portion 733, the locking buckle 734, and the limiting pressing buckle 735. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Figure 1 to Figure 9As shown, in one embodiment of the present invention, a wire end connector is involved, including a shell 1, a metal shell 2, an electrical connection component 3, an inner module 4, an outer module 5, a connecting wire 6 and a locking component 7, wherein the shell 1 is provided with a plug-in cavity 11 and an injection cavity 12, one end of the injection cavity 12 is communicated with the plug-in cavity 11, and the locking component 7 is arranged on the upper side of the shell 1; the metal shell 2 is arranged in the plug-in cavity 11, the electrical connection component 3 is arranged in the metal shell 2, the metal shell 2 is used to fix the electrical connection component 3 in the plug-in cavity 11, and one end of the electrical connection component 3 extends toward the port of the plug-in cavity 11; one end of the connecting wire 6 is connected to the electrical connection component 3, the inner module 4 is coated on one end of the metal shell 2 by injection molding, and coats the connecting wire 6 and one end of the electrical connection component 3, the inner module 4 is arranged inside the injection cavity 12, and the outer module 5 is outside the injection cavity 12 by injection molding, and coats the inner module 4 and the connecting wire 6. This embodiment adopts the method of inner mold injection molding and outer mold injection molding to design the connector. The inner mold 4 is used to perform injection molding protection on the internal metal shell 2, the power connection component 3 and the connecting wire 6. After injection molding, the stability and reliability of the connecting wire 6 inside are ensured. The design of the outer mold 5 covers the connecting wire 6 and the outer shell 1, so that the structure is integrated, and the durability and tensile strength of the connector are ensured during use. The stability and safety problems of the existing connector are solved.

[0027] In this embodiment, the structure of the plug-in cavity 11 and the injection cavity 12 of the shell 1 is separated and connected, which not only facilitates the installation and positioning of the internal components, but also enhances the sealing and protection level of the connector through the design of the injection cavity 12, effectively prevents the external environment from corroding the internal electrical connection part, and ensures the stability and safety of the electrical connection. Secondly, as a key structural part, the metal shell 2 firmly carries the power connection component 3 in the plug-in cavity 11, which not only provides the necessary mechanical support, but also ensures the efficient transmission of electrical signals through its conductive properties. At the same time, the design of the power connection component 3 extending to the port of the plug-in cavity 11 facilitates quick and accurate docking with external equipment and reduces the plug-in and pull-out force. The inner mold 4 tightly covers one end of the metal shell 2 and the connecting wire 6 and the power connection component 3 through the injection molding process. This design not only enhances the fixity of the connecting wire 6 and prevents the risk of disconnection caused by external force pulling, but also improves the insulation performance and weather resistance of the connector through the selection of materials and the control of the injection molding process, and prolongs the service life. The injection molding of the outer module 5 not only achieves comprehensive coverage of the internal components, further improving the compactness and protection capabilities of the overall structure, but also gives the connector a good appearance texture and visual effect, meeting the aesthetic requirements in different application scenarios.

[0028] The housing 1 is provided with a plug connector 13 outside the plug cavity 11, and a plug guide strip 131 is provided on the periphery of the plug connector 13, and a plug positioning boss 132 is provided on the lower side of the plug connector 13; a reinforcement portion 133 is provided between the plug connector 13 and the injection cavity 12, and the reinforcement portion 133 is used to separate the plug connector 13 from the injection cavity 12. In this embodiment, the plug guide strip 131 effectively guides the plugging process, ensures the correct plugging direction, reduces misplugging and wear, and improves user experience. The plug positioning boss 132 achieves precise locking, enhances the stability and reliability of the connection, and prevents accidental detachment due to external force or vibration. The provision of the reinforcement portion 133 separates the plug connector 13 from the injection cavity 12, effectively avoiding direct stress transfer between the two, and also significantly enhances the structural strength of the plug connector 13, extending the service life of the connector.

[0029] A limiting rib 111 is provided at the port of the plug-in cavity 11, and the limiting rib 111 is used to block and limit the metal shell 2 in the plug-in cavity 11, and a chamfer 112 is provided at the opening of the limiting rib 111. In this embodiment, the limiting rib 111 limits the metal shell 2 in the plug-in cavity 11, effectively preventing the shell from loosening or shifting due to vibration or misoperation, thereby ensuring the reliability of the stable connection and signal transmission of the connector during long-term use. The chamfer 112 provided at the opening of the limiting rib 111 not only optimizes the insertion path of the metal shell 2, reduces the insertion resistance, avoids scratches or jamming that may occur during the plug-in process, but also improves the user experience. It ensures the smoothness and safety of the connector during rapid plugging and unplugging.

[0030] The metal shell 2 includes an upper shell 21 and a lower shell 22. The upper shell 21 and the lower shell 22 are buckled together to form a buckle cavity 23. One end of the buckle cavity 23 is used to fix the power connection component 3. The lower shell 22 is provided with a contact cavity 24. One end of the contact cavity 24 is connected to the buckle cavity 23. One end of the power connection component 3 extends toward the contact cavity 24. The wall of the contact cavity 24 is provided with a contact spring 241. In this embodiment, the precise buckle mechanism of the upper shell 21 and the lower shell 22 not only ensures the stable formation of the buckle cavity 23 and provides a solid installation foundation for the power connection component 3, but also enhances the structural strength of the connector and effectively resists potential damage caused by external environmental factors such as vibration and impact. The ingenious design of the contact cavity 24 enables the power connection component 3 to be seamlessly connected to the internal circuit. At the same time, the contact spring 241 arranged on the wall ensures the stability and efficiency of the electrical connection through its excellent elasticity and conductivity, and reduces the risk of signal attenuation or circuit breakage caused by poor contact. In addition, the adaptive characteristics of the contact spring 241 can tolerate slight deviations during the docking process to a certain extent, thereby improving the compatibility and ease of use of the connector.

[0031] The upper shell 21 is provided with a mating buckle 211 on both sides, and the lower shell 22 is provided with a mating slot 221 on both sides, and the mating buckle 211 and the mating slot 221 are engaged with each other; the rear side of the metal shell 2 is provided with a fixed wire clamp 25, and the fixed wire clamp 25 fixes the connecting wire 6 by riveting. In this embodiment, by providing the mating buckles 211 on both sides of the upper shell 21 and engaging with the corresponding mating slots 221 on both sides of the lower shell 22, it not only simplifies the assembly process and improves the assembly efficiency, but also ensures the stable connection of the shell, effectively prevents loosening caused by vibration or external force, and enhances the overall structural strength of the connector. Secondly, the fixed wire clamp 25 design integrated on the rear side of the metal shell 2 uses riveting to fix the connecting wire 6. This innovation not only improves the stability of the connecting wire 6, but also prevents the cable from falling off due to long-term use or environmental factors.

[0032] See also Figure 6~Figure 7 As shown, the power connection assembly 3 includes an insulating module 31 and a power connection element 32. The insulating module 31 includes a first fixing member 33, a second fixing member 34 and a wiring member 35. The first fixing member 33 and the second fixing member 34 are stacked up and down. The wiring member 35 is arranged at the rear side of the first fixing member 33 and the second fixing member 34, and connects the first fixing member 33 with the second fixing member 34. There are multiple power connection elements 32, and the multiple power connection elements 32 are respectively arranged on the first fixing member 33 and the second fixing member 34. One end of the power connection element 32 extends toward the metal shell 2 and the other end extends toward the wiring member 35. In this embodiment, the insulating module 31 effectively enhances the stability of the overall structure through the stacked structure of the first fixing member 33 and the second fixing member 34. At the same time, the wiring member 35 cleverly connects the rear sides of the two to ensure that the transmission path of the signal or current is both stable and efficient. The distributed layout of multiple power connection elements 32 not only optimizes the current distribution, but also reduces the thermal effect caused by single-point concentration, thereby improving the working life of the connector. The design that the two ends of the electrical connection element 32 extend toward the metal shell 2 and the connection piece 35 respectively increases the contact area with the external components, reduces the contact resistance, and improves the conduction efficiency.

[0033] The first fixing member 33 is provided with a first buckle 331, a first slot 332, a first positioning hole 333 and a first positioning pin 334, and the second fixing member 34 is provided with a second buckle 341, a second slot 342, a second positioning hole 343 and a second positioning pin 344. The first buckle 331 is used to match the second slot 342, the second buckle 341 is used to match the first slot 332, the first positioning pin 334 is used to match the second positioning hole 343, and the second positioning pin 344 is used to match the first positioning hole 333. In this embodiment, the ingenious docking of the first buckle 331 and the second slot 342, and the second buckle 341 and the first slot 332 not only simplifies the installation process, but also greatly improves the reliability of the connection, and effectively prevents loosening or falling off due to external force. At the same time, the precise matching between the first positioning pin 334 and the second positioning hole 343, and between the second positioning pin 344 and the first positioning hole 333, realizes the precise positioning of the connector in three-dimensional space, ensures the alignment accuracy between the connecting components, and further ensures the transmission efficiency and stability of signals or currents.

[0034] A first pad groove 335 is provided on one side of the first fixing member 33, a second pad groove 345 is provided on one side of the second fixing member 34, a first routing groove 351 is provided on the connection member 35 corresponding to the first pad groove 335, a second routing groove 352 is provided on the connection member 35 corresponding to the second pad groove 345, the first pad groove 335 is opposite to the first routing groove 351, the second pad groove 345 is opposite to the second routing groove 352, the power connection element 32 is provided with a connection pad 321, the first pad groove 335 and the second pad groove 345 are both used to fix the connection pad 321, and the connecting wire 6 is welded to the connection pad 321 through the first routing groove 351 and the second routing groove 352. In this embodiment, the connection pad 321 can be firmly fixed by the precisely designed first and second pad grooves 345, ensuring that the pad position is accurate during the welding process, and reducing the problem of poor welding caused by position offset. At the same time, the corresponding arrangement of the first and second wiring grooves 352 provides a clear and smooth wiring path for the connecting line 6, effectively avoiding line cross interference and improving the stability and anti-interference ability of signal transmission.

[0035] The electrical connection element 32 is provided with a fixed end 322 and a plug end 323, and a curved bevel 324 is provided between the fixed end 322 and the plug end 323, and the curved bevel 324 is used for the plug end 323 to be twisted and tilted at 45 degrees with the fixed end 322; a guide arc surface 325 is provided at the port of the plug end 323; and the fixed end 322 is provided on the first fixing member 33 and the second fixing member 34. In this embodiment, the natural guidance and 45° tilt locking during the plugging process are ensured by the carefully designed curved bevel 324 between the fixed end 322 and the plug end 323. This innovation not only simplifies the installation steps, but also significantly enhances the stability of the connection and effectively resists the tendency to loosen under vibration and external force impact. The design of the guide arc surface 325 at the port of the plug end 323 further optimizes the smoothness of the plugging action, reduces the friction and resistance during the plugging and unplugging process, prolongs the service life of the component, and improves the user experience. This design detail also promotes uniform contact of the electrical contact surface, optimizes current transmission efficiency, and reduces heat loss and safety hazards caused by poor contact. The fixed end 322 is cleverly arranged on the first fixing member 33 and the second fixing member 34, forming a stable support structure, providing a solid installation foundation for the entire power connection element 32, and further enhancing the overall strength and stability of the connector.

[0036] The inner mold 4 includes an embedded portion 41 and an outer end portion 42. The inner mold 4 is formed by injection molding of insulating material. The embedded portion 41 is embedded in the injection molding cavity 12 by injection molding to cover the metal shell 2, the connecting wire 6 and one end of the power connection component 3. One end of the outer end portion 42 abuts against the port of the injection molding cavity 12. In this embodiment, the injection molding of the insulating material ensures that the inner mold 4 accurately wraps the embedded portion 41 and the outer end portion 42, effectively isolates the metal shell 2, the connecting wire 6 and the power connection component 3 from direct contact with the external environment, significantly enhances the electrical insulation performance, and prevents the risk of short circuit and leakage. Secondly, the embedded portion 41 is accurately embedded in the injection molding cavity 12, tightly covering one end of the key component, which not only enhances the stability of the structure, but also improves the heat dissipation efficiency through the close combination of materials, and extends the service life of the connector. The outer end portion 42 is precisely abutted against the port of the injection cavity 12, forming a solid barrier to prevent the intrusion of harmful substances such as external moisture and dust, thereby ensuring the purity and stability of the internal environment of the connector.

[0037] The outer module 5 includes a front end 51 and a rear end 52. The injection molding cavity 12 is provided with an injection molding groove 121. The front end 51 is coated on the outside of the injection molding cavity 12 by injection molding to fill the injection molding groove 121 and coat the outer end 42. The rear end 52 coats the connecting wire 6. In this embodiment, the front end 51 tightly coats the outside of the injection molding cavity 12 through the injection molding process, which not only accurately fills the injection molding groove 121, but also enhances the structural integrity and sealing of the connector body, effectively prevents the intrusion of adverse factors such as dust and moisture in the external environment, and improves the durability and reliability of the connector. Secondly, the coating design of the front end 51 further strengthens the stability of the interface between the injection molding cavity 12 and the connecting wire 6, reduces the risk of loosening due to vibration or external force, and ensures the stability of signal transmission and the firmness of the connection. At the same time, the design also optimizes the appearance texture of the connector, and improves the overall aesthetics and market competitiveness of the product. The covering treatment of the connecting wire 6 at the rear end portion 52 not only simplifies the assembly process and reduces the number of components in the assembly process, but also provides additional mechanical protection and insulation isolation, reduces the risk of short circuit or electric shock caused by exposed wires, and ensures the safety of users.

[0038] See also Figure 8As shown, a locking platform 134 is provided on the upper side of the plug connector 13 , and the locking assembly 7 is provided on the locking platform 134 . When the locking cam 73 is in the state of being moved, the locking cam 734 is in the state of being moved forward, and the locking cam 734 is in the state of being moved forward, and the locking cam 734 is in the state of being moved forward, and the locking cam 734 is in the state of being moved forward, and the locking cam 734 is in the state of being moved forward, and the locking cam 734 is in the state of being moved In this embodiment, the design of the pressing bar 71 allows the user to trigger the locking mechanism by a simple pressing action. This humanized design not only simplifies the operation process, but also enhances the user experience. The limit buckle 712 on the locking slide 711 acts as a safety barrier to ensure the precise positioning and stability during the locking process, and prevents the lock member 73 from accidentally falling off or misaligning during the sliding process. The lock member 73 includes a sliding portion 731, a pushing portion 732 and a locking portion 733. The smooth sliding of the sliding portion 731 in the locking slide 72 ensures the overall stability and response speed of the lock member 73; the pushing portion 732 acts as a power source, and through the action of external force (such as the pressing bar 71), it pushes the locking portion 733 to move precisely in the locking slide 711, so as to achieve a close fit or separation between the locking buckle 734 and the object connector. The locking buckle 734 is designed to automatically adjust the locking state according to the position: when it is located at the front end of the limit buckle 712, the locking buckle 734 firmly locks the object connector, effectively preventing accidental loosening due to vibration or external force; and when it moves to the rear end of the locking buckle, it automatically enters the unlocking state, which is convenient for quick separation of the connector and improves the efficiency of maintenance or replacement.

[0039] See also Figure 1 to Figure 9As shown, a method for preparing a line end connector includes the following steps: preparing an electrical connection component 3, riveting an electrical connection element 32 with a fixing piece, then buckling the fixing piece to form an electrical connection component 3, then welding a connecting wire 6, welding the connecting wire 6 with a terminal pad 321 of the electrical connection element 32, performing a solder joint inspection after welding, then wrapping a high temperature resistant insulating tape around the connecting wire 6, then assembling a metal shell 2, placing the assembled electrical connection component 3 in the metal shell 2, and fixing the connecting wire 6 with a wire clamp of the metal shell 2 by riveting; then injection molding the prepared iron shell, placing the metal shell 2 in a mold, and molding the metal shell 2, the connecting wire 6 and one end of the electrical connection component 3 by injection molding, then assembling the injection molded structure into the housing 1, performing secondary injection molding, and injecting an outer mold 5 on the outside of the inner mold 4 to cover the injection molding cavity 12 and the connecting wire 6, and finally assembling a locking component 7, performing a finished product inspection, and completing the preparation. In this embodiment, the power connection element 32 is tightly combined with the fixing part through a fine riveting process to form a stable power connection component 3, thereby ensuring the reliability of the electrical connection. The precise welding of the connecting wire 6 and the wiring pad 321 of the power connection element 32, and the subsequent solder joint detection, further enhance the stability and safety of the electrical connection. Wrapping the high temperature resistant insulating tape on the connecting wire 6 effectively isolates the electrical risks in a high temperature environment, and improves the insulation performance of the product and the safety of long-term use. The use of the metal shell 2 and its riveting fixation with the connecting wire 6 not only enhances the overall strength of the structure, but also provides additional physical protection. The first injection molding covers the metal shell 2, the connecting wire 6 and one end of the power connection component 3, achieving good sealing and protection, while improving the appearance quality of the product. The application of secondary injection molding on the outer module 5 further enhances the environmental adaptability of the product, such as waterproofing and dustproofing, while protecting the integrity of the internal structure. Finally, by assembling the lock assembly 7 and testing the finished product, the assembly accuracy and functional integrity of the final product are ensured.

[0040] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A line end connector, characterized in that: It comprises an outer shell, a metal shell, an electrical connection component, an inner mold, an outer mold, a connecting wire and a locking component. The outer shell is provided with a plug-in cavity and an injection molding cavity. One end of the injection molding cavity is communicated with the plug-in cavity. The locking component is arranged on the upper side of the outer shell; the metal shell is arranged in the plug-in cavity, the electrical connection component is arranged in the metal shell, the metal shell is used to fix the electrical connection component in the plug-in cavity, and one end of the electrical connection component extends toward the port of the plug-in cavity; one end of the connecting wire is connected to the electrical connection component, the inner mold is coated on one end of the metal shell by injection molding, and coats the connecting wire and one end of the electrical connection component, the inner mold is arranged inside the injection molding cavity, the outer mold is outside the injection molding cavity by injection molding, and coats the inner mold and the connecting wire.

2. The line end connector according to claim 1, characterized in that: The shell is provided with a plug connector outside the plug cavity, a plug connector guide strip is provided on the outer periphery of the plug connector, and a plug connector positioning boss is provided on the lower side of the plug connector; a reinforcement part is provided between the plug connector and the injection cavity, and the reinforcement part is used to separate the plug connector from the injection cavity; A locking platform is provided on the upper side of the plug connector, and the locking assembly is provided on the locking platform; A limit rib is provided at the port of the plug-in cavity, and the limit rib is used to block and limit the metal shell in the plug-in cavity. An opening of the limit rib is provided with a chamfer.

3. The line end connector according to claim 1, characterized in that: The metal shell includes an upper shell and a lower shell, the upper shell and the lower shell are buckled together to form a buckling cavity, one end of the buckling cavity is used to fix the power connection component, the lower shell is provided with a contact cavity, one end of the contact cavity is communicated with the buckling cavity, and one end of the power connection component extends toward the contact cavity; the wall surface of the contact cavity is provided with a contact spring; The upper shell is provided with matching buckles on both sides, and the lower shell is provided with matching slots on both sides, and the matching buckles and the matching slots are engaged with each other; the rear side of the metal shell is provided with a fixed wire clamp, and the fixed wire clamp fixes the connecting wire by riveting.

4. The wire end connector according to claim 1, characterized in that: The power connection assembly includes an insulating module and a power connection element. The insulating module includes a first fixing member, a second fixing member and a wiring member. The first fixing member and the second fixing member are stacked up and down. The wiring member is arranged at the rear side of the first fixing member and the second fixing member and connects the first fixing member with the second fixing member. There are multiple power connection elements, and the multiple power connection elements are respectively arranged on the first fixing member and the second fixing member. One end of the power connection element extends toward the metal shell, and the other end extends toward the wiring member.

5. The wire end connector according to claim 4, characterized in that: The first fixing member is provided with a first buckle, a first slot, a first positioning hole and a first positioning pin, and the second fixing member is provided with a second buckle, a second slot, a second positioning hole and a second positioning pin, the first buckle is used to match the second slot, the second buckle is used to match the first slot, the first positioning pin is used to match the second positioning hole, and the second positioning pin is used to match the first positioning hole; A first pad groove is provided on one side of the first fixing member, a second pad groove is provided on one side of the second fixing member, a first wiring groove is provided on the wiring member corresponding to the first pad groove, and a second wiring groove is provided corresponding to the second pad groove, the first pad groove is opposite to the first wiring groove, the second pad groove is opposite to the second wiring groove, the power connection element is provided with a wiring pad, the first pad groove and the second pad groove are both used to fix the wiring pad, and the connecting wire is welded to the wiring pad through the first wiring groove and the second wiring groove.

6. The line end connector according to claim 5, characterized in that: The power connection element is provided with a fixed end and a plug-in end, a curved inclined surface is provided between the fixed end and the plug-in end, and the curved inclined surface is used to twist the plug-in end to be inclined at 45 degrees with the fixed end; a guiding arc surface is provided at the port of the plug-in end; the fixed end is arranged on the first fixing member and the second fixing member.

7. The wire end connector according to claim 1, characterized in that: The inner mold includes an embedded part and an outer end part. The inner mold is formed by injection molding of insulating material. The embedded part is embedded in the injection molding cavity by injection molding to cover the metal shell, the connecting wire and one end of the power connection component. One end of the outer end part abuts against the port of the injection molding cavity.

8. The wire end connector according to claim 7, characterized in that: The outer mold comprises a front end and a rear end, the injection cavity is provided with an injection groove, the front end is filled with the injection groove and covers the outer end by injection molding on the outside of the injection cavity, and the rear end covers the connecting wire.

9. The wire end connector according to claim 1, characterized in that: The lock assembly includes a pressing strip, a lock slide groove and a lock piece, one end of the pressing strip extends toward the lock slide groove, the pressing strip is provided with a locking slide groove, the locking slide groove is provided with a limiting buckle, the lock piece is slidably arranged on the lock slide groove, the lock piece includes a sliding portion, a pushing portion and a locking portion, the end of the locking portion is provided with a locking buckle, the sliding portion is used to be slidably arranged on the lock slide groove, the end of the sliding portion is provided with a limiting pressing buckle, the locking portion is slidably arranged on the locking slide groove, the pushing portion is used to push the locking portion to slide on the locking slide groove, the locking buckle is located at the front end of the limiting buckle for locking the object connector, and is located at the rear end of the locking buckle in an unlocked state.

10. A method for preparing the wire end connector according to any one of claims 1 to 9, characterized in that: The invention comprises the following steps: preparing a power connection component, riveting a power connection element and a fixing piece, then buckling the fixing piece to form a power connection component, then welding a connecting wire, welding the connecting wire to a wiring pad of the power connection element, performing solder joint detection after welding, then winding a high temperature resistant insulating tape on the connecting wire, then assembling a metal shell, placing the assembled power connection component in the metal shell, and fixing the connecting wire to a wire clamp of the metal shell by riveting; then injection molding the prepared iron shell, placing the metal shell in a mold, and molding the metal shell, the connecting wire and one end of the power connection component by injection molding, then assembling the injection molded structure into an outer shell, performing secondary injection molding, injection molding an outer module on the outside of the inner module to cover the injection molding cavity and the connecting wire, and finally assembling a locking component, performing finished product detection, and completing the preparation.

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