Wire harness female head connector

Abstract

The utility model relates to the technical field of vehicle-mounted electric connection, in particular to a wire harness female head connector, which comprises an outer shell, an inner shell, a metal shell, an electric connection terminal and a fixing piece, and is characterized in that the outer shell is provided with a placement cavity, one end of the placement cavity penetrates along the length direction of the outer shell, and one end of the placement cavity is provided with a limiting step; the inner shell is arranged in the placement cavity, one end of the inner shell is provided with a limiting flange, and the limiting flange is used for being matched on the limiting step so as to limit the inner shell in the placement cavity; an insertion cavity is formed in the side, close to the limiting flange, of the inner shell, through grooves are formed in the two sides of the inner shell, one end of each through groove communicates with the insertion cavity, a fixing base is arranged at the end, located in the insertion cavity, of the inner shell, and a terminal insertion groove is formed in the fixing base. The utility model is applied to a new energy automobile, and has the advantages of small overall dimension, compact structure, space saving and convenience in installation; and the requirements of a vehicle-mounted system on a power supply and signals are met. Production is convenient, assembling is convenient, and the structural cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted electrical connection, in particular to a wiring harness female connector. 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 the prior art, the Chinese patent application number is: CN201921853570.X, which discloses an HSL horizontal high-speed connector, which solves the problem of unstable connection of existing high-speed connectors. The horizontal structure of the power terminal can enhance the bearing strength during the plug-in process, thereby ensuring the stability and reliability of the structure. However, in actual use, the overall structure is complex due to design reasons, inconvenient to assemble, and not conducive to mass production. Utility Model Content

[0004] In order to solve the above problems, the utility model is applied to new energy vehicles, with small overall dimensions, compact structure, space saving, and easy installation; it meets the power and signal requirements of the vehicle system. It is easy to produce, easy to assemble, and has a low structural cost.

[0005] The technical solution adopted by the utility model is: a wiring harness female connector, including an outer shell, an inner shell, a metal shell, an electrical terminal and a fixing piece, the outer shell is provided with a placement cavity, one end of the placement cavity penetrates along the length direction of the outer shell, and one end of the placement cavity is provided with a limiting step; the inner shell is arranged in the placement cavity, one end of the inner shell is provided with a limiting rib, and the limiting rib is used to cooperate with the limiting step to limit the inner shell in the placement cavity; a plug-in cavity is provided on one side of the inner shell close to the limiting rib, and through grooves are provided on both sides of the inner shell, and the through grooves are provided. One end of the slot is connected to the plug-in cavity, and the inner shell is provided with a fixing seat at one end of the plug-in cavity, and the fixing seat is provided with a terminal slot, and one end of the terminal slot is connected to the plug-in cavity; the metal shell is covered on the outside of the inner shell and is located between the inner shell and the placement cavity; contact springs are provided on both sides of the metal shell, and the contact ends of the contact springs extend into the plug-in cavity through the through slot; there are multiple power terminals, one end of which is inserted into the terminal slot and extends into the plug-in cavity; the fixing piece is installed at one end of the placement cavity and fixes the inner shell in the placement cavity.

[0006] A further improvement to the above scheme is that an assembly platform is provided on one side of the outer shell, and a separation groove is passed through the assembly platform along the length direction of the outer shell to form two mutually symmetrical assembly rails, and the assembly rails are provided with assembly slots for assembling and fixing the outer shell on the equipment.

[0007] A further improvement to the above solution is that an assembly buckle is provided on one side of the outer shell facing the separation groove.

[0008] A further improvement to the above scheme is that the accommodating cavity is provided with an assembly guide groove, one end of which passes through the limiting step, and assembly guide strips are provided on both sides of the limiting rib, and the inner shell is slidably assembled in the assembly guide groove through the assembly guide strips.

[0009] A further improvement to the above scheme is that the inner wall of the accommodating cavity is provided with a back-stop groove and a fixed card slot, the metal shell is provided with a back-stop spring sheet, one end of the back-stop spring sheet abuts against the back-stop groove, the fixing piece is provided with a fixed buckle, and the fixing piece is engaged with the fixed card slot through the fixed buckle.

[0010] A further improvement to the above scheme is that the plug-in cavity is provided with a plug-in guide strip and a plug-in guide groove, the plug-in cavity is provided with a plug-in card slot on one side of the plug-in guide strip, and the plug-in cavity is provided with a contact pressure platform on one side of the through groove; an assembly sliding groove is provided on one side of the through groove, and the assembly sliding groove is used to contact the spring sheet to guide the assembly toward the through groove.

[0011] A further improvement to the above solution is that a front stop groove is provided on the lower side of the assembly slide-in groove, and a front stop spring piece is provided on the metal shell, and the front stop spring piece is used to cooperate with the front groove to fix the inner shell.

[0012] A further improvement to the above scheme is that a clamping groove is provided at one end of the inner shell body, the clamping groove is provided with a clamping buckle, one end of the clamping buckle extends to the terminal slot, and the power terminal is provided with a clamping platform, one end of the clamping buckle abuts against the clamping platform to fix the power terminal in the terminal slot.

[0013] A further improvement to the above solution is that the clamping buckle is provided with an extension portion, the extension portion extends toward the outer side surface of the inner shell and is relatively flush with the outer side surface of the inner shell, and a partition groove is provided between the extension portion and a wall surface of the clamping groove.

[0014] A further improvement to the above scheme is that the terminal slot includes a terminal jack, a tight-fitting portion and a wire clamp portion which are connected in sequence, and the power terminal includes a terminal pin, a tight-fitting end and a terminal wire clamp, one end of the terminal pin is inserted into the terminal jack and extends into the plug-in cavity, the tight-fitting end is arranged in the tight-fitting portion, and the terminal wire clamp is arranged in the wire clamp portion.

[0015] A further improvement to the above solution is that a harness clamping portion is provided at one end of the metal shell, a connecting harness is provided at the harness clamping portion, and one end of the connecting harness is connected to the power terminal.

[0016] A further improvement to the above scheme is that the fixing member is provided with a clamping column, a wire clamping cavity is provided on the lower side of the clamping column, the wire harness clamping portion is used to fix the connecting wire harness in the wire clamping cavity, one end of the clamping column clamps the inner shell, and a wiring groove is provided on one side of the wire clamping cavity, and the wiring groove is used to lead out one end of the connecting wire harness.

[0017] The beneficial effects of the utility model are:

[0018] Compared with the existing connectors, the utility model is applied to new energy vehicles, with small overall dimensions, compact structure, space saving, and easy installation; it meets the power and signal requirements of the vehicle system, is easy to produce, easy to assemble, and has low structural cost.

[0019] The utility model connector adopts a design in which a metal shell covers an inner shell, and the contact springs arranged on the metal shell can reliably contact the electrical terminals, ensuring a good electrical connection. At the same time, the limiting ribs arranged on the inner shell cooperate with the limiting steps of the placement cavity to firmly limit the inner shell in the placement cavity, avoiding the problem of the electrical terminals loosening and falling off, and greatly improving the reliability of the connection.

[0020] One end of the outer shell is designed to penetrate along the length direction, so that the cable can pass freely from one end of the outer shell, avoiding the problem of the cable being damaged due to excessive bending. At the same time, the metal shell's sheathing design can effectively isolate external electromagnetic interference and improve the anti-interference performance of the entire connector system. In addition, the metal shell can also provide good dust and water protection, greatly improving the reliability of the connector in harsh environments.

[0021] The connector adopts a design of multiple structural parts such as inner shell, metal shell and fixing parts, and the various components cooperate with each other to form a compact and integrated overall structure. This not only improves the overall strength and rigidity of the connector, but also greatly reduces the size and weight of the connector, making it easier to install and use in a small space.

[0022] The connector uses a fixing to fix the inner shell in the outer shell, so that the internal components can be easily disassembled and replaced. This not only facilitates debugging and maintenance during the production process, but also greatly improves the maintenance convenience of the connector during use and significantly reduces maintenance costs.

[0023] The utility model realizes many technical advantages such as reliable connection performance, excellent protection performance, outstanding structural compactness, excellent maintainability and good compatibility through ingenious structural design of inner and outer shells, metal shells, power terminals and fixings, and provides a high-performance and high-reliability connection solution for various electrical systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the wiring harness female connector of the utility model;

[0025] Figure 2 for Figure 1 A three-dimensional schematic diagram of the center harness female connector from another perspective;

[0026] Figure 3 for Figure 1 An exploded view of the center harness female connector;

[0027] Figure 4 for Figure 1 Exploded diagram of the center harness female connector from another angle;

[0028] Figure 5 for Figure 1 Schematic diagram of the main view of the center harness female connector;

[0029] Figure 6 for Figure 5 Sectional view of AA in the middle;

[0030] Figure 7 for Figure 1Schematic diagram of the internal structure of the center harness female connector;

[0031] Figure 8 for Figure 1 A schematic diagram of the structure of the outer shell of the center harness female connector;

[0032] Fig. 9 for Figure 1 A schematic diagram of the structure of the inner housing of the center harness female connector;

[0033] Fig.10 for Figure 1 A schematic diagram of the structure of the inner housing of the center harness female connector from another perspective;

[0034] Fig.11 for Figure 1 Schematic diagram of the structure of the metal shell of the center harness female connector.

[0035] Description of reference numerals: outer shell 1, placement cavity 11, assembly guide groove 111, stop groove 112, fixing groove 113, limiting step 12, assembly platform 13, partition groove 131, assembly guide rail 132, assembly groove 133, assembly buckle 134;

[0036] Inner housing 2, limiting retaining edge 21, assembly guide strip 211, plug-in cavity 22, plug-in guide strip 221, plug-in guide groove 222, plug-in card slot 223, abutment pressing platform 224, through slot 23, assembly sliding slot 231, front stop slot 232, fixing seat 24, terminal slot 25, terminal jack 251, tight fitting portion 252, wire clamp portion 253, clamping groove 26, clamping buckle 261, extension portion 262;

[0037] Metal shell 3, contact spring 31, stop spring 32, stop spring 33, wire harness clamping part 34, connecting wire harness 35;

[0038] Power terminal 4, clamping platform 41, terminal pin 42, tight fitting end 43, terminal wire clamp 44;

[0039] The fixing part 5 , the fixing buckle 51 , the pressing column 52 , the wire clamping cavity 53 , and the wire routing groove 54 . DETAILED DESCRIPTION

[0040] 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.

[0041] 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.

[0042] 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 the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Figure 1 to Figure 11 As shown, in one embodiment of the utility model, a wiring harness female connector is involved, including an outer shell 1, an inner shell 2, a metal shell 3, an electrical terminal 4 and a fixing member 5, the outer shell 1 is provided with a placement cavity 11, one end of the placement cavity 11 passes through along the length direction of the outer shell 1, and one end of the placement cavity 11 is provided with a limiting step 12; the inner shell 2 is arranged in the placement cavity 11, and one end of the inner shell 2 is provided with a limiting rib 21, and the limiting rib 21 is used to cooperate with the limiting step 12 to limit the inner shell 2 in the placement cavity 11; the inner shell 2 is provided with a plug-in cavity 22 on one side close to the limiting rib 21, and through grooves 23 are provided on both sides of the inner shell 2, and the through grooves 2 3 is connected to the plug-in cavity 22, and the inner shell 2 is provided with a fixing seat 24 at one end of the plug-in cavity 22, and the fixing seat 24 is provided with a terminal slot 25, and one end of the terminal slot 25 is connected to the plug-in cavity 22; the metal shell 3 is covered on the outside of the inner shell 2 and is located between the inner shell 2 and the placement cavity 11; contact springs 31 are provided on both sides of the metal shell 3, and the contact end of the contact spring 31 extends into the plug-in cavity 22 from the through groove 23; the power connection terminal 4 is provided with multiple terminals, and one end of the power connection terminal 4 is inserted into the terminal slot 25 and extends into the plug-in cavity 22; the fixing member 5 is installed at one end of the placement cavity 11, and the inner shell 2 is fixed in the placement cavity 11. This embodiment is applied to new energy vehicles, with small overall dimensions, compact structure, space saving, and easy installation; it meets the power supply and signal requirements of the vehicle-mounted system. It is easy to produce, easy to assemble, and has a low structural cost.

[0043] The connector of this embodiment adopts a design in which the metal shell 3 covers the inner shell 2. The contact spring 31 provided on the metal shell 3 can reliably contact the power terminal 4, ensuring a good electrical connection. At the same time, the limiting rib 21 provided on the inner shell 2 cooperates with the limiting step 12 of the placement cavity 11 to firmly limit the inner shell 2 in the placement cavity 11, avoiding the problem of the power terminal 4 loosening and falling off, and greatly improving the reliability of the connection.

[0044] In the above embodiment, one end of the outer shell 1 is designed to penetrate along the length direction, so that the cable can freely pass through one end of the outer shell 1, avoiding the problem of the cable being damaged due to excessive bending. At the same time, the sheathing design of the metal shell 3 can effectively isolate external electromagnetic interference and improve the anti-interference performance of the entire connector system. In addition, the metal shell 3 can also play a good role in dust and water protection, greatly improving the reliability of the connector in harsh environments.

[0045] In the above embodiment, the connector adopts a design of multiple structural parts such as the inner housing 2, the metal housing 3 and the fixing part 5, and the various components cooperate with each other to form a compact and integrated overall structure. This not only improves the overall strength and rigidity of the connector, but also greatly reduces the volume and weight of the connector, making it convenient to install and use in a small space.

[0046] In the above embodiment, the connector uses a fixing member 5 to fix the inner housing 2 in the outer housing 1, so that the internal components can be easily disassembled and replaced. This not only facilitates debugging and maintenance during the production process, but also greatly improves the maintenance convenience of the connector during use, and greatly reduces the maintenance cost.

[0047] The above embodiment achieves many technical advantages such as reliable connection performance, excellent protection performance, outstanding structural compactness, excellent maintainability and good compatibility through the ingenious structural design of the inner and outer shells 1, the metal shell 3, the power terminals 4 and the fixing parts 5, and provides a high-performance and high-reliability connection solution for various electrical systems.

[0048] See also Figure 8 As shown, an assembly platform 13 is provided on one side of the outer shell 1, and the assembly platform 13 is penetrated with a separation groove 131 along the length direction of the outer shell 1 to form two mutually symmetrical assembly rails 132, and the assembly rails 132 are provided with an assembly card slot 133 for assembling and fixing the outer shell 1 on the device; specifically, an assembly buckle 134 is provided on the side of the outer shell 1 facing the separation groove 131. In this embodiment, the two assembly rails 132 provided on the assembly platform 13 and the assembly card slot 133 on the rails provide a simple and reliable fixing method for the installation of the connector. The user only needs to align the assembly rail 132 of the connector with the fixed card slot on the device, and then easily snap the connector in and fix it, without other complicated installation steps. At the same time, the assembly buckle 134 on the outer shell 1 can further strengthen the fixation between the connector and the device, and improve the overall installation stability. The symmetrical design of the assembly rail 132 enables the connector to be quickly positioned and aligned with the fixed card slot on the device. The user only needs to simply insert the connector without cumbersome adjustment and alignment processes. This rapid positioning and alignment capability greatly improves connector installation efficiency, which is particularly important on the production line.

[0049] The placement cavity 11 is provided with an assembly guide groove 111, one end of which passes through the limiting step 12, and assembly guide strips 211 are provided on both sides of the limiting rib 21, and the inner housing 2 is slidably assembled in the assembly guide groove 111 through the assembly guide strips 211. In this embodiment, the assembly guide groove 111 passes through the limiting step 12, and cooperates with the guide strips on both sides to provide accurate positioning and guiding functions for the installation of the inner housing 2. The inner housing 2 can accurately slide into the placement cavity 11 along the guide groove and the guide strip, which greatly improves the installation alignment accuracy between the inner housing 2 and the outer housing 1. This precise positioning helps to ensure the matching degree between the internal structural parts and improves the assembly quality of the entire connector. The design of the guide groove and the guide strip makes the installation of the inner housing 2 simple and efficient. The user only needs to align the inner housing 2 with the guide groove, and then easily slide it into the placement cavity 11 along the guide groove and the guide strip. This convenient assembly process greatly shortens the assembly time of the connector and improves production efficiency. At the same time, it also reduces the difficulty of operation and reduces assembly errors caused by human factors. The limiting step 12 cooperates with the limiting rib 21 on the inner housing 2 to reliably limit the inner housing 2 in the placement cavity 11. The sliding design of the assembly guide groove 111 and the guide bar ensures the stability and positioning accuracy of the inner housing 2 during the placement process. This reliable limiting and fixing mechanism ensures the stable cooperation between the internal structural parts and improves the overall reliability of the connector.

[0050] The inner wall of the placement cavity 11 is provided with a stop groove 112 and a fixed card slot 113, the metal shell 3 is provided with a stop spring 32, one end of the stop spring 32 abuts against the stop groove 112, and the fixing member 5 is provided with a fixing buckle 51, and the fixing member 5 is engaged with the fixing card slot 113 through the fixing buckle 51. In this embodiment, the stop groove 112 and the fixed card slot 113 provided on the inner wall of the placement cavity 11, and the stop spring 32 provided on the metal shell 3, constitute a set of reliable fixing and protection mechanisms. The stop spring 32 abuts against the stop groove 112, which can effectively prevent the connector from moving and loosening due to external impact or vibration during use. The fixing member 5 is engaged with the fixing card slot 113 through the fixing buckle 51, which further enhances the fixation and stability of the connector and ensures the safe and reliable operation of the connector in harsh environments. The fixing member 5 adopts the design of double-sided fixing buckles 51, which can effectively enhance the fixing stability of the connector. Whether in a vibrating environment or in harsh working conditions, the connector can maintain a stable and reliable connection state, thereby improving the stability and reliability of the entire system. At the same time, the design of the fixing member 5 can also effectively prevent the connector from accidentally falling off due to external impact or vibration, thereby improving the durability and service life of the connector.

[0051] See also Figure 9~Figure 10As shown, the plug-in cavity 22 is provided with a plug-in guide strip 221 and a plug-in guide groove 222; the plug-in cavity 22 is provided with a plug-in slot 223 on one side of the plug-in guide strip 221; the plug-in cavity 22 is provided with a contact pressing platform 224 on one side of the through groove 23; one side of the through groove 23 is provided with an assembly sliding groove 231, and the assembly sliding groove 231 is used to contact the spring piece 31 to guide the assembly toward the through groove 23; specifically, the lower side of the assembly sliding groove 231 is provided with a front stop groove 232, and the metal shell 3 is provided with a front stop spring piece 33, and the front stop spring piece 33 is used to cooperate with the front groove to fix the inner shell 2. In this embodiment, the plug-in cavity 22 is provided with a plug-in guide strip 221 and a plug-in guide slot 222. The plug-in cavity 22 is provided with a plug-in card slot 223 on one side of the plug-in guide strip 221, and the plug-in cavity 22 is provided with a contact pressure platform 224 on one side of the through slot 23; one side of the through slot 23 is provided with an assembly slide-in slot 231, and the assembly slide-in slot 231 is used to guide the assembly of the contact spring 31 toward the through slot 23; specifically, the lower side of the assembly slide-in slot 231 is provided with a front stop slot 232, and the metal shell 3 is provided with a front stop spring 33, and the front stop spring 33 is used to cooperate with the front slot to fix the inner shell 2. The plug-in card slot 223 provided in the plug-in cavity 22 can cooperate with the buckle on the power terminal 4 to form a reliable plug-in fixing mechanism. This can not only prevent the power terminal 4 from accidentally falling off during use, but also ensure the stability of the plug connection, thereby improving the reliability of the entire system. At the same time, the abutting pressing platform 224 in the plug-in cavity 22 can also apply a certain pressure to the butt electrical terminal 4, further enhancing the firmness of the plug-in connection. The assembly sliding groove 231 provided on one side of the through groove 23 provides a simple and efficient guide channel for the assembly of the contact spring 31. The contact spring 31 can accurately enter the predetermined position by simply assembling along the sliding groove toward the through groove 23, which greatly improves the convenience and efficiency of assembly. At the same time, the design of the front stop groove 232 and the front stop spring 33 can also reliably fix the inner shell 2 in the metal shell 3, ensuring the stability of the entire connector structure. The assembly sliding groove 231 provided on one side of the through groove 23 makes full use of the spatial layout inside the connector. This not only improves the assembly efficiency of the contact spring 31, but also optimizes the internal structure design of the entire connector, reduces the overall size of the connector, and improves the space utilization rate. This is particularly important for occasions that need to be installed in a small space. Accurate plug-in positioning, stable plug-in fixation, and reliable internal structure fixation together ensure the high reliability and durability of the entire connector during use. Even in harsh working environments, the connector can maintain a stable and reliable connection state, greatly improving the service life of the system.

[0052] One end of the inner housing 2 is provided with a clamping groove 26, and the clamping groove 26 is provided with a clamping buckle 261, one end of the clamping buckle 261 extends to the terminal slot 25, and the power terminal 4 is provided with a clamping platform 41, and one end of the clamping buckle 261 abuts against the clamping platform 41 to fix the power terminal 4 in the terminal slot 25. Specifically, the clamping buckle 261 is provided with an extension portion 262, and the extension portion 262 extends toward the outer side surface of the inner housing 2 and is relatively flush with the outer side surface of the inner housing 2, and a partition groove is provided between the extension portion 262 and a wall surface of the clamping groove 26. In this embodiment, the clamping buckle 261 provided in the clamping groove 26 cooperates with the clamping platform 41 of the power terminal 4, so that the power terminal 4 can be firmly fixed in the terminal slot 25. Through the abutment of the clamping buckle 261, a reliable mechanical connection is formed between the power terminal 4 and the inner housing 2, preventing the terminal from loosening or falling off under vibration or external force, and ensuring the stability and reliability of the connector. The design of the clamping buckle 261 allows one end of it to extend into the terminal slot 25 and contact the clamping platform 41 of the power terminal 4. By reasonably adjusting the structure and material of the clamping buckle 261, the size of the clamping force can be accurately controlled. This precise clamping force control can ensure good electrical contact between the power terminal 4 and the connector, and improve the stability and conduction performance of the connection. The extension 262 of the clamping buckle 261 extends toward the outer side of the inner housing 2 and is relatively flush with the outer side of the inner housing 2, and is provided with a partition groove. Such a design enables the connector to adapt to power terminals 4 of different specifications and shapes. Whether it is a terminal of different thickness or a terminal of special shape, it can find a suitable position in the clamping groove 26 to ensure the firm fixation of the terminal. The design of the clamping groove 26 and the clamping buckle 261 provided on the inner housing 2 of the connector makes it more convenient to assemble and repair the power terminal 4. The user only needs to insert the power terminal 4 into the terminal slot 25, and then abut the clamping buckle 261 on the clamping platform 41 to quickly complete the assembly of the connector. When the power terminal 4 needs to be repaired or replaced, the user only needs to loosen the clamping buckle 261 to easily disassemble and replace the power terminal 4.

[0053] The terminal slot 25 includes a terminal jack 251, a tight-fitting portion 252 and a wire clamp portion 253 which are connected in sequence. The power terminal 4 includes a terminal pin 42, a tight-fitting end 43 and a terminal wire clamp 44. One end of the terminal pin 42 is inserted into the terminal jack 251 and extends into the plug-in cavity 22. The tight-fitting end 43 is arranged in the tight-fitting portion 252, and the terminal wire clamp 44 is arranged in the wire clamp portion 253. In this embodiment, the terminal pin 42 is inserted into the terminal jack 251 and extends into the plug-in cavity 22, which can achieve good electrical contact with the corresponding connector, ensuring reliable electrical conductivity between the terminals inside the connector. This precise electrical connection helps to improve the transmission performance and stability of the entire system. The tight-fitting end 43 is arranged in the tight-fitting portion 252, which can cooperate with the compression structure of the inner housing 2 to reliably fix the power terminal 4 in the terminal slot 25. This mechanical fixation can not only prevent the power terminal 4 from loosening or falling off during use, but also ensure stable contact between the power terminal 4 and the inner housing 2, thereby improving the reliability of the connector. The terminal wire clamp 44 is arranged in the wire clamp portion 253, and can reliably fix the connecting wire on the power terminal 4. This reliable cable connection mechanism ensures that the wires of the entire connector system will not accidentally fall off during use, thereby improving the stability and service life of the connection. The three-section design of the terminal slot 25 (the socket, the tight-fitting portion 252, and the wire clamp portion 253) makes full use of the spatial layout inside the connector and realizes the organic integration of key structural parts such as terminals and cables. This optimized internal structure design not only improves the overall reliability of the connector, but also reduces the size of the connector and improves the space utilization efficiency.

[0054] See also Fig.11As shown, a wire harness clamping portion 34 is provided at one end of the metal shell 3, and the wire harness clamping portion 34 is provided with a connecting wire harness 35, and one end of the connecting wire harness 35 is connected to the power terminal 4. Further, the fixing member 5 is provided with a clamping column 52, and a clamping cavity 53 is provided on the lower side of the clamping column 52. The wire harness clamping portion 34 is used to fix the connecting wire harness 35 in the clamping cavity 53, and one end of the clamping column 52 clamps the inner shell 2, and a wiring groove 54 is provided on one side of the clamping cavity 53, and the wiring groove 54 is used to lead out one end of the connecting wire harness 35. In this embodiment, the wire harness clamping portion 34 is provided at one end of the metal shell 3, and the connecting wire harness 35 can be firmly fixed in the clamping cavity 53. This reliable wire harness fixing mechanism can not only prevent the wire harness from accidentally moving or falling off during use, but also ensure the stable connection between the wire harness and the power terminal 4, thereby improving the reliability of the entire connector system. The clamping column 52 provided on the fixing member 5 can reliably clamp the inner housing 2 in the metal housing 3, forming a compact internal structure layout. At the same time, the design of the wire clamping cavity 53 provides a dedicated fixing space for the connecting wire harness 35, effectively utilizing the space resources inside the connector and optimizing the overall structural design. This optimized internal layout not only improves the reliability of the connector, but also reduces its overall size and improves the space utilization efficiency.

[0055] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A wiring harness female connector, characterized in that: include An outer shell, wherein the outer shell is provided with a placement cavity, one end of the placement cavity penetrates along the length direction of the outer shell, and one end of the placement cavity is provided with a limited step; An inner housing, the inner housing is arranged in the placement cavity, one end of the inner housing is provided with a limit rib, the limit rib is used to cooperate with the limit step to limit the inner housing in the placement cavity; a plug-in cavity is provided on one side of the inner housing close to the limit rib, through grooves are provided on both sides of the inner housing, one end of the through groove is connected to the plug-in cavity, a fixing seat is provided at one end of the inner housing located in the plug-in cavity, the fixing seat is provided with a terminal slot, one end of the terminal slot is connected to the plug-in cavity; A metal shell, which is coated on the outside of the inner shell and is located between the inner shell and the placement cavity; contact springs are arranged on both sides of the metal shell, and the contact ends of the contact springs extend into the plug-in cavity through the through slots; An electrical terminal, wherein a plurality of electrical terminals are provided, one end of the electrical terminal is inserted into the terminal slot and extends into the plug-in cavity; the terminal slot comprises a terminal jack, a tight-fitting portion and a wire clamp portion which are connected in sequence, the electrical terminal comprises a terminal pin, a tight-fitting end and a terminal wire clamp, one end of the terminal pin is inserted into the terminal jack and extends into the plug-in cavity, the tight-fitting end is arranged in the tight-fitting portion, and the terminal wire clamp is arranged in the wire clamp portion; as well as A fixing member is installed at one end of the placement cavity and fixes the inner shell in the placement cavity.

2. The wiring harness female connector according to claim 1, characterized in that: An assembly platform is provided on one side of the outer shell, and a separation groove is passed through the assembly platform along the length direction of the outer shell to form two mutually symmetrical assembly rails, and the assembly rails are provided with assembly slots for assembling and fixing the outer shell on the equipment; A assembling buckle is arranged on one side of the outer shell facing the dividing groove.

3. The wiring harness female connector according to claim 1, characterized in that: The placement cavity is provided with an assembly guide groove, one end of which passes through the limiting step, and both sides of the limiting retaining edge are provided with assembly guide strips, and the inner shell is slidably assembled in the assembly guide groove through the assembly guide strips.

4. The wiring harness female connector according to claim 1, characterized in that: The inner wall of the accommodating cavity is provided with a back-stop groove and a fixing slot, the metal shell is provided with a back-stop spring sheet, one end of the back-stop spring sheet abuts against the back-stop groove, the fixing member is provided with a fixing buckle, and the fixing member is engaged with the fixing slot through the fixing buckle.

5. The wiring harness female connector according to claim 1, characterized in that: The plug-in cavity is provided with a plug-in guide strip and a plug-in guide groove. The plug-in cavity is provided with a plug-in card slot on one side of the plug-in guide strip, and the plug-in cavity is provided with a contact pressure platform on one side of the through groove; an assembly sliding groove is provided on one side of the through groove, and the assembly sliding groove is used to contact the spring sheet to guide the assembly toward the through groove.

6. The wiring harness female connector according to claim 5, characterized in that: A front-stop groove is arranged at the lower side of the assembly sliding groove, and a front-stop spring piece is arranged on the metal shell. The front-stop spring piece is used to cooperate with the front-stop groove to fix the inner shell.

7. The wiring harness female connector according to claim 1, characterized in that: A clamping groove is provided at one end of the inner shell, a clamping buckle is provided in the clamping groove, one end of the clamping buckle extends to the terminal slot, and a clamping platform is provided in the power terminal, one end of the clamping buckle abuts against the clamping platform to fix the power terminal in the terminal slot.

8. The wiring harness female connector according to claim 7, characterized in that: The clamping buckle is provided with an extension portion, which extends toward the outer side surface of the inner shell and is relatively flush with the outer side surface of the inner shell. A partition groove is provided between the extension portion and a wall surface of the clamping groove.

9. The wiring harness female connector according to claim 1, characterized in that: A harness clamping portion is provided at one end of the metal shell, a connecting harness is provided at the harness clamping portion, and one end of the connecting harness is connected to the power terminal.

10. The wiring harness female connector according to claim 9, characterized in that: The fixing member is provided with a clamping column, a wire clamping cavity is provided at the lower side of the clamping column, the wire harness clamping portion is used to fix the connecting wire harness in the wire clamping cavity, one end of the clamping column clamps the inner shell, and a wiring groove is provided on one side of the wire clamping cavity, and the wiring groove is used to lead out one end of the connecting wire harness.

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