Wire end connector

Abstract

The utility model relates to the technical field of electric connection, in particular to a wire end connector, which comprises a shell, a metal shell, a power connection assembly, an inner module, an outer module, a connecting wire and a lock catch assembly, and is characterized in that the shell is provided with a plugging cavity and an injection molding cavity, one end of the injection molding cavity is communicated with the plugging 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 utility model, the problems of stability and safety of the existing connector are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connection, in particular to a wire end connector. Background Art

[0002] In-vehicle connectors are electronic components used to connect devices inside and outside a vehicle. With the rapid development of the automotive industry and the trend toward intelligent and networked vehicles, the number and variety of in-vehicle connectors are also increasing. For example, in-vehicle entertainment systems, camera systems, navigation systems, and autonomous driving systems all require in-vehicle connectors to facilitate data transmission and power supply between devices. As a crucial component of driver assistance systems, in-vehicle cameras are also experiencing continuous evolution and improvement in their connectors. This places higher demands on in-vehicle camera connectors, requiring them to possess low power consumption and high performance.

[0003] In actual use, the existing vehicle-mounted cable end connectors are prone to loosening and falling off at the power connection position, and poor contact of the guide posts. Therefore, new improvements are needed for the existing vehicle-mounted cable end connectors. Utility Model Content

[0004] To address these issues, the present invention employs an internal molded component to protect the metal shell, electrical connection components, and connecting wires. This ensures the stability and reliability of the connecting wires within the molded component. The design of the external molded component encapsulates the connecting wires and the outer shell, creating a single structure and ensuring the durability and tensile strength of the connector during use. This invention addresses the stability and safety issues of existing connectors and its manufacturing method.

[0005] The technical solution adopted by the utility model 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, 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 covers 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 covers the inner module and the connecting wire.

[0006] A further improvement to the above scheme is that the shell is provided with a plug connector outside the plug-in cavity, 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 part is provided between the plug connector and the injection molding cavity, and the reinforcement part is used to separate the plug connector from the injection molding 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 solution 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 opening of the limit rib is provided with a chamfer.

[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 connected to the buckling cavity, and one end of the power connection component extends toward the contact cavity; the wall of the contact cavity is provided with a contact spring.

[0010] A further improvement to the above solution is that matching buckles are provided on both sides of the upper shell, and 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 solution 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 on the rear side of the first fixing member and the second fixing member, and connects the first fixing member and the second fixing member, and a plurality of power connection elements are provided, and the plurality of 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 clip, a first slot, a first positioning hole and a first positioning pin, and the second fixing member is provided with a second clip, a second slot, a second positioning hole and a second positioning pin, the first clip is used to cooperate with the second slot, the second clip 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 form a 45° inclination with the fixed end; a guide 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, and 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 the port of the injection molding cavity.

[0016] A further improvement to the above scheme is that the outer module 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 by injection molding on the outside of the injection cavity and covers the outer end, 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 and a lock piece, one end of the pressing strip extends toward the lock slide, the pressing strip is provided with a locking slide, the lock slide is provided with a limiting buckle, the lock piece is slidably arranged on the lock slide, and 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, the end of the sliding portion is provided with a limiting pressure buckle, the locking portion is slidably arranged on the lock slide, the pushing portion is used to push the locking portion to slide on the lock slide, and 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 wire end connector comprises the following steps: preparing an electrical connection assembly, riveting an electrical connection element and a fixing piece, then buckling the fixing piece to form the electrical connection assembly, then welding a connecting wire, welding the connecting wire to a terminal pad of the electrical connection element, performing solder joint inspection after welding, then wrapping a high-temperature resistant insulating tape around the connecting wire, then assembling a metal shell, placing the assembled electrical connection assembly inside 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 covering the metal shell, the connecting wire, and one end of the electrical connection assembly by injection molding; then assembling the completed injection molded structure into an outer shell, performing secondary injection molding, and injecting an outer mold onto the outside of the inner mold to cover the injection molding cavity and the connecting wire; finally, assembling a locking assembly, and performing finished product inspection to complete the preparation.

[0019] The beneficial effects of the utility model are:

[0020] Compared to existing wire-end connectors, this new connector utilizes both internal and external mold injection molding. The internal mold protects the metal shell, electrical components, and connecting wires, ensuring the stability and reliability of the connecting wires. The external mold design encapsulates the connecting wires and the outer shell, creating a single structure and ensuring durability and tensile strength during use. This addresses the stability and safety issues of existing connectors.

[0021] 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 parts, and ensures the stability and safety of the electrical connection. Secondly, the metal shell, as a key structural component, firmly supports the power connection components in the plug-in cavity, 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 components 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 due to external force, 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 and visual effect, meeting the aesthetic requirements in different application scenarios.

[0022] The method used to manufacture the wire-end connector uses a sophisticated riveting process to tightly bond the electrical connection element to the fixings, forming a stable electrical connection assembly and ensuring a reliable electrical connection. Precise welding of the connecting wires to the terminal pads of the connecting wires, followed by subsequent solder joint inspection, further enhances the stability and safety of the electrical connection. Wrapping the connecting wires with high-temperature insulating tape effectively isolates electrical risks in high-temperature environments, improving the product's insulation performance and long-term safety. The use of a metal shell and its riveted attachment to the connecting wires not only enhances the overall strength of the structure but also provides additional physical protection. The initial injection molding process encapsulates the metal shell, connecting wires, and one end of the electrical connection assembly, achieving excellent sealing and protection while also enhancing the product's appearance. The application of secondary injection molding to the outer mold further enhances the product's environmental adaptability, such as waterproofing and dustproofing, while also protecting the integrity of the internal structure. Finally, assembly of the locking components and finished product inspection ensure the assembly accuracy and functional integrity of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional schematic diagram of the wire end connector of the utility model;

[0024] Figure 2 for Figure 1 A three-dimensional diagram of the midline connector from another perspective;

[0025] Figure 3 for Figure 1 Schematic diagram of the main view of the center line connector;

[0026] Figure 4 for Figure 1 Exploded view of the midline connector;

[0027] Figure 5 for Figure 1 Exploded view of the midline connector from another perspective;

[0028] Figure 6 for Figure 1 An exploded diagram of the midline connector structure;

[0029] Figure 7 for Figure 1 An exploded diagram of the midline connector structure;

[0030] Figure 8 for Figure 1 A schematic diagram of the structure of the locking assembly of the midline connector;

[0031] Figure 9 The figure is a schematic diagram of the preparation process of the wire end connector of the utility model.

[0032] 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;

[0033] 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;

[0034] Power connection assembly 3, insulation module 31, power connection element 32, connection pad 321, fixed end 322, plug end 323, curved inclined surface 324, guide arc surface 325, first fixing member 33, first buckle 331, first slot 332, first positioning hole 333, first positioning pin 334, first pad slot 335, second fixing member 34, second buckle 341, second slot 342, second positioning hole 343, second positioning pin 344, second pad slot 345, connection member 35, first wiring groove 351, second wiring groove 352;

[0035] Inner mold 4, inner embedded portion 41, outer end portion 42;

[0036] Outer module 5, front end portion 51, rear end portion 52;

[0037] Connecting line 6;

[0038] The locking assembly 7, the pressing bar 71, the locking slide 711, the limiting buckle 712, the locking slide 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

[0039] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.

[0040] 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 referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit this invention. Figures 1 to 9 As shown, in one embodiment of the present invention, a wire end connector is provided, comprising an outer 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. The outer shell 1 is provided with an inserting cavity 11 and an injection molding cavity 12, one end of the injection molding cavity 12 is communicated with the inserting cavity 11, and the locking component 7 is arranged on the upper side of the outer shell 1; the metal shell 2 is arranged in the inserting 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 inserting cavity 11, and one end of the electrical connection component 3 extends toward the port of the inserting 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 covers the connecting wire 6 and one end of the electrical connection component 3, the inner module 4 is arranged inside the injection molding cavity 12, and the outer module 5 is outside the injection molding cavity 12 by injection molding, and covers the inner module 4 and the connecting wire 6. This embodiment utilizes both internal and external injection molding to design the connector. The internal metal shell 2, electrical connection assembly 3, and connecting wire 6 are protected by the internal mold 4, ensuring the stability and reliability of the connecting wire 6. The external mold 5 encapsulates the connecting wire 6 and the outer shell 1, forming a single structure and ensuring durability and tensile strength during use. This addresses the stability and safety issues of existing connectors.

[0042] In this embodiment, the structure of the plug cavity 11 and the injection molding cavity 12 designed in the shell 1 is separated and connected. This 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 12, effectively preventing the external environment from corroding the internal electrical connection parts, and ensuring the stability and safety of the electrical connection. Secondly, the metal shell 2, as a key structural component, firmly supports the power connection component 3 in the plug cavity 11, not only providing the necessary mechanical support, but also ensuring the efficient transmission of electrical signals through its conductive properties. At the same time, the design of the power connection component 3 extending toward the end of the plug cavity 11 facilitates quick and accurate docking with external devices and reduces the insertion and removal 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 fixation of the connecting wire 6 and prevents the risk of disconnection due to external pulling, but also improves the insulation performance and weather resistance of the connector through the selection of materials and control of the injection molding process, thereby extending 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.

[0043] 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 outer 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 significantly enhances the structural strength of the plug connector 13, thereby extending the service life of the connector.

[0044] A limiting rib 111 is provided at the port of the plug-in cavity 11. The limiting rib 111 is used to block and limit the metal shell 2 in the plug-in cavity 11. A bevel 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 stable connection and signal transmission reliability of the connector during long-term use. The bevel 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.

[0045] The metal shell 2 comprises an upper shell 21 and a lower shell 22. The upper and lower shells 21 and 22 interlock to form a snap-fit ​​cavity 23, one end of which is used to secure the power supply assembly 3. The lower shell 22 is provided with a contact cavity 24, one end of which communicates with the snap-fit ​​cavity 23, and one end of the power supply assembly 3 extends toward the contact cavity 24. The walls of the contact cavity 24 are provided with contact springs 241. In this embodiment, the precise snap-fit ​​mechanism of the upper and lower shells 21 and 22 not only ensures the stable formation of the snap-fit ​​cavity 23, providing a solid installation foundation for the power supply assembly 3, but also enhances the structural strength of the connector, effectively resisting potential damage caused by external environmental factors such as vibration and impact. The ingenious design of the contact cavity 24 enables the power supply assembly 3 to seamlessly connect to the internal circuit. Furthermore, the contact springs 241 arranged on the walls, through their excellent elasticity and conductivity, ensure a stable and efficient electrical connection, reducing 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 usability of the connector.

[0046] Mating buckles 211 are provided on both sides of the upper shell 21, and mating slots 221 are provided on both sides of the lower shell 22. The mating buckles 211 and the mating slots 221 are engaged with each other; a fixed wire clamp 25 is provided on the rear side of the metal shell 2, and the fixed wire clamp 25 fixes the connecting wire 6 by riveting. In this embodiment, by providing 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, not only the assembly process is simplified and the assembly efficiency is improved, but also the stable connection of the shell is ensured, loosening due to vibration or external force is effectively prevented, and the overall structural strength of the connector is enhanced. Secondly, the fixed wire clamp 25 integrated on the rear side of the metal shell 2 is designed to fix the connecting wire 6 by riveting. 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.

[0047] See Figure 6-Figure 7As shown, the electrical connection assembly 3 includes an insulating module 31 and an electrical connection element 32. The insulating module 31 includes a first fixing member 33, a second fixing member 34, and a connecting member 35. The first fixing member 33 and the second fixing member 34 are stacked one above the other. The connecting member 35 is disposed behind the first fixing member 33 and the second fixing member 34 and connects the first fixing member 33 and the second fixing member 34. Multiple electrical connection elements 32 are provided, one end of each of the first fixing member 33 and the second fixing member 34 extending toward the metal shell 2 and the other end toward the connecting member 35. In this embodiment, the stacked structure of the insulating module 31, consisting of the first fixing member 33 and the second fixing member 34, effectively enhances the overall structural stability. Furthermore, the connecting member 35 cleverly connects the two at their rear sides, ensuring a stable and efficient signal or current transmission path. The distributed layout of the multiple electrical connection elements 32 not only optimizes current distribution but also reduces the thermal effects caused by single-point concentration, thereby extending the service life of the connector. The design in which both ends of the electrical connection element 32 extend toward the metal shell 2 and the terminal 35 respectively increases the contact area with the external components, reduces the contact resistance, and improves the conductive efficiency.

[0048] 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. 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 configured to engage with the second slot 342, the second buckle 341 is configured to engage with the first slot 332, the first positioning pin 334 is configured to engage with the second positioning hole 343, and the second positioning pin 344 is configured to engage with the first positioning hole 333. In this embodiment, the clever docking of the first buckle 331 with the second slot 342, and the second buckle 341 with the first slot 332, not only simplifies the installation process but also significantly improves the reliability of the connection, effectively preventing loosening or falling off due to external forces. At the same time, the precise matching of the first positioning pin 334 and the second positioning hole 343, as well as 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 thus guarantees the transmission efficiency and stability of signals or currents.

[0049] A first solder pad groove 335 is provided on one side of the first fixing member 33, and a second solder pad groove 345 is provided on one side of the second fixing member 34. The connecting member 35 is provided with a first routing groove 351 corresponding to the first solder pad groove 335, and a second routing groove 352 corresponding to the second solder pad groove 345. The first solder pad groove 335 is opposite the first routing groove 351, and the second solder pad groove 345 is opposite the second routing groove 352. The power connection element 32 is provided with a connection pad 321. The first solder pad groove 335 and the second solder pad groove 345 are both used to fix the connection pad 321. 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 precisely designed first and second solder pad grooves 345 can firmly fix the connection pad 321, ensuring the accurate positioning of the pad during the welding process and reducing welding defects caused by positional 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.

[0050] The electrical connection element 32 is provided with a fixed end 322 and a plug end 323. A curved bevel 324 is provided between the fixed end 322 and the plug end 323. The curved bevel 324 is used to twist the plug end 323 to form a 45-degree inclination with the fixed end 322. A guide arc 325 is provided at the end of the plug end 323. The fixed end 322 is provided on the first fixing member 33 and the second fixing member 34. In this embodiment, the carefully designed curved bevel 324 between the fixed end 322 and the plug end 323 ensures natural guidance and 45-degree tilt locking during the plugging process. This innovation not only simplifies the installation process, but also significantly enhances the stability of the connection, effectively resisting the tendency to loosen under vibration and external impact. The design of the guide arc 325 at the end of the plug end 323 further optimizes the smoothness of the plugging action, reduces friction and resistance during the plugging and unplugging process, extends the service life of the component, and improves the user experience. This design detail also promotes uniform contact across the electrical interface, optimizing current transmission efficiency and reducing heat loss and safety hazards caused by poor contact. The fixing end 322 is cleverly positioned above the first and second fixing members 33 and 34, forming a stable support structure. This provides a solid mounting foundation for the entire electrical connection element 32 and further enhances the overall strength and stability of the connector.

[0051] 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 an 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 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 isolating the metal shell 2, the connecting wire 6 and the power connection component 3 from direct contact with the external environment, significantly enhancing the electrical insulation performance, and preventing the risk of short circuit and leakage. Secondly, the embedded portion 41 is precisely 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, thereby extending the service life of the connector. The outer end portion 42 precisely abuts against the port of the injection molding 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.

[0052] 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 covered on the outside of the injection molding cavity 12 by injection molding to fill the injection molding groove 121 and cover the outer end 42. The rear end 52 covers the connecting line 6. In this embodiment, the front end 51 tightly covers 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 covering design of the front end 51 further strengthens the stability of the interface between the injection molding cavity 12 and the connecting line 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 and texture of the connector, and enhances 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.

[0053] See 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 latch is in the closed position, the latch has the key 730 disposed in the closed position, and the latch has the key 730 disposed in the closed position, and the latch has the key 730 disposed in the closed position, and the latch has the key 730 disposed in the closed position. In this embodiment, the design of the pressure bar 71 allows the user to trigger the locking mechanism with a simple press. This user-friendly design not only simplifies the operation process but also enhances the user experience. The limit buckle 712 on the locking groove 711 acts as a safety barrier, ensuring precise positioning and stability during the locking process, and preventing the locking member 73 from accidentally falling off or misaligning during the sliding process. The locking member 73 includes a sliding portion 731, a pushing portion 732, and a locking portion 733. The sliding portion 731 slides smoothly within the locking groove 72, ensuring the overall stability and response speed of the locking member 73. The pushing portion 732 acts as a power source, and through the action of an external force (such as the pressure bar 71), it pushes the locking portion 733 to move precisely within the locking groove 711, achieving a tight fit or separation between the locking buckle 734 and the target connector. The design of the locking buckle 734 can 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 unlocked state, which facilitates quick separation of the connector and improves the efficiency of maintenance or replacement.

[0054] See Figures 1 to 9As shown, a method for preparing a wire end connector includes the following steps: preparing an electrical connection component 3, riveting the electrical connection element 32 with a fixing piece, then buckling the fixing piece to form the electrical connection component 3, then welding the connecting wire 6, welding the connecting wire 6 to the terminal pad 321 of the electrical connection element 32, performing solder joint inspection after welding, then wrapping the connecting wire 6 with a high-temperature resistant insulating tape, then assembling the metal shell 2, and placing the assembled electrical connection component 3 in the metal shell 2, and fixing the connecting wire 6 to the 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 covering the metal shell 2, the connecting wire 6 and one end of the electrical connection component 3 by injection molding, then assembling the completed injection molded structure into the shell 1, performing secondary injection molding, and injecting the outer module 5 on the outside of the inner module 4 to cover the injection molding cavity 12 and the connecting wire 6, finally assembling the locking component 7, and performing finished product inspection to complete the preparation. In this embodiment, a sophisticated riveting process tightly bonds the electrical connection element 32 to the fixings, forming a stable electrical connection assembly 3 and ensuring the reliability of the electrical connection. The precise welding of the connecting wire 6 to the terminal pads 321 of the electrical connection element 32, and the subsequent solder joint inspection, further enhance the stability and safety of the electrical connection. Wrapping the connecting wire 6 with high-temperature-resistant insulating tape effectively isolates electrical risks in high-temperature environments, improving the product's insulation performance and long-term safety. The use of the metal shell 2 and its riveted fixation to the connecting wire 6 not only enhances the overall strength of the structure but also provides additional physical protection. The initial injection molding process encapsulates the metal shell 2, the connecting wire 6, and one end of the electrical connection assembly 3, achieving excellent sealing and protection while also improving the product's appearance. The application of secondary injection molding to the outer mold 5 further enhances the product's environmental adaptability, such as waterproofing and dustproofing, while also protecting the integrity of the internal structure. Finally, assembly of the locking assembly 7 and finished product inspection ensures the assembly accuracy and functional integrity of the final product.

[0055] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A line end connector, characterized in that: It includes an outer shell, a metal shell, an electrical connection component, an inner module, an outer module, 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, and 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.

2. The wire end connector according to claim 1, wherein: The housing is provided with a plug connector outside the plug cavity, a plug guide strip is provided on the periphery of the plug connector, and a plug 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; 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. The opening of the limit rib is provided with a chamfered bevel.

3. The wire end connector according to claim 1, wherein: 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 connected to the buckling cavity, and one end of the power connection component extends toward the contact cavity; the wall of the contact cavity is provided with a contact spring; Matching buckles are provided on both sides of the upper shell, and 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.

4. The wire end connector according to claim 1, wherein: 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 on the rear side of the first fixing member and the second fixing member and connects the first fixing member and 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, wherein: 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 solder pad groove is provided on one side of the first fixing member, and 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, and the second solder pad groove is opposite to the second wiring groove. The power connection element is provided with a wiring pad, and the first solder pad groove and the second solder pad groove are both used to fix the wiring pad. The connecting wire is welded to the wiring pad through the first wiring groove and the second wiring groove.

6. The wire 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 form a 45° inclination with the fixed end; a guide arc surface is provided at the port of the plug-in end; the fixed end is provided on the first fixing member and the second fixing member.

7. The wire end connector according to claim 1, wherein: 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 the port of the injection molding cavity.

8. The wire end connector according to claim 7, wherein: 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.

9. The wire end connector according to claim 1, wherein: The locking assembly includes a pressing bar, a locking slot and a locking piece. One end of the pressing bar extends toward the locking slot. The pressing bar is provided with a locking slot. A limiting buckle is provided on the locking slot. The locking piece is slidably provided on the locking slot.

10. The wire end connector according to claim 9, wherein: The locking part includes a sliding portion, a pushing portion and a locking portion, a locking buckle is provided at the end of the locking portion, the sliding portion is used to be slidably set on the locking buckle slide groove, and a limiting pressure buckle is provided at the end of the sliding portion. The locking portion is slidably set on the locking slide groove, and 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.

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