Wire-to-wire connector

Abstract

The utility model relates to wire to wire connector, including female seat and male head, female seat has first insulating main part and several first terminals, first insulating main part has the socket with first guide portion, several first terminals are positioned on first insulating main part and have first contact portion press set direction to go into the socket, male head has second insulating main part and several second terminals, the shape, size of the plug -in end of second insulating main part match with socket, and the outer periphery on this plug -in end is equipped with second guide portion, for with first guide portion cooperation to guide plug -in connection, second terminal is positioned on second insulating main part and has second contact portion for with first contact portion pairing connection, the guide portion on second contact portion guides first contact portion plug -in and holds contact first contact portion together with elastic contact arm. Multi -point alignment, limit, realize accurate and stable plug -in connection between terminal, and there is enough electrical clearance between adjacent terminals, improve the transmission effect of current and signal.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a quick-connect wire-to-wire connector. Background Technology

[0002] Wire-to-wire connectors are used for connecting wires to cables or cables to cables, especially in multi-wire connections. Due to the limited space of the connector, it is necessary to consider not only electrical clearance to meet safety requirements, but also to ensure mating stability and ease of use. This is a common concern in the industry. Therefore, based on professional expertise and accumulated experience, the applicant has developed a wire-to-wire connector, which is the subject of this application. Summary of the Invention

[0003] The purpose of this invention is to provide a wire-to-wire connector that improves at least one aspect of the aforementioned problems and defects.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A wire-to-wire connector includes a female connector and a male connector that interlock. The female connector has a first insulating body and several first terminals. The first insulating body is flat and has a first plug-in end and a first wiring end that are opposite to each other. The first plug-in end has a first locking part and an axially recessed socket, and a first guide part is provided on the inner wall of the socket. The several first terminals are positioned on the first insulating body and arranged in a row. Each first terminal has a first contact part, a first wiring part, and a first fixing part. The first fixing part forms an anti-disengagement connection with the first insulating body, so that the first contact part extends into the socket in a predetermined direction, and the first wiring part is connected to a first wire in the first wiring end. The male connector has a second insulating body and several second terminals. The second insulating body is flat. The device has two opposing second plug-in terminals and two second wiring terminals. The shape and size of the second plug-in terminals match the socket. The outer periphery of the second plug-in terminals is provided with a second guide portion and a second locking portion. The second guide portion cooperates with the first guide portion to guide the second plug-in terminals to plug into the socket. The second locking portion cooperates with the first locking portion. The plurality of second terminals are positioned on the second insulating body and arranged in a row. The second terminal has a second contact portion, a second wiring portion and a second fixing portion. The second fixing portion forms an anti-disengagement connection with the second insulating body, so that the second contact portion extends into the preset plug hole of the second plug-in terminal in a set direction. The second contact portion has an elastic contact arm and a guiding portion. The second wiring portion is connected to the second wire in the second wiring terminal. When the female and male connectors are plugged in, the second plug end is inserted into the socket and an anti-disengagement relationship is established under the connection of the first locking part and the second locking part. The first contact part of the first terminal is inserted into the corresponding socket and is guided by the guide part to stick tightly to the elastic contact arm, so that the first terminal and the second terminal form an electrical connection, realizing the wire-to-wire conductive connection of the first wire and the second wire.

[0005] The above solution is further described in that the second contact portion is a cylindrical shape with a central hole, and the elastic contact arm and the guide portion are respectively disposed on the upper and lower side walls of the second contact portion. The elastic contact arm is formed by a partial tear in the second contact portion and bending inward into the second contact portion. The guide portion is formed by a partial inward protrusion in the second contact portion. The guide portion has a guide slope and a pressing surface. The guide slope guides the first contact portion toward the elastic contact arm, and the pressing surface clamps the first contact portion together with the elastic contact arm.

[0006] The above solution is further described in that the first guide part is a guide groove extending along the insertion direction, and the second guide part is a rib. The first guide part and the second guide part cooperate to guide the second insertion end into the socket while also restricting the left and right displacement of the second insertion end in the insertion direction.

[0007] The above solution is further described in that the first guide portion is respectively disposed on the upper and lower inner walls of the socket, and the corresponding second guide portion is disposed on the upper and lower outer peripheral surfaces of the second plug end.

[0008] The above solution is further described as follows: the first locking part has an elastic hook that extends into the socket and a pressing head that protrudes from the outside of the first insulating body; the second locking part is a protrusion on the outer periphery of the second plug end. After the second plug end is inserted into the socket, the elastic hook automatically engages with the second locking part. When the engagement is to be released, the pressing head is operated to drive the elastic hook to exit the engagement with the second locking part.

[0009] Furthermore, the cross-sectional shape of the first contact portion is square, and the central hole of the second contact portion is also square.

[0010] The above-mentioned solution is further described as follows: the first insulating body is provided with a first terminal hole that passes through the first plug-in end and the first wiring end. The first terminal is inserted and assembled along the first terminal hole. While the first fixing part and the first insulating body form an insertion depth limit, the first fixing part is also provided with a first barb. The first barb is engaged with the first insulating body to establish an anti-disconnection connection. The second insulating body is provided with a second terminal hole that passes through the second plug-in end and the second wiring end. The second terminal is inserted and assembled along the second terminal hole. While the second fixing part of the second terminal and the second insulating body form an insertion depth limit, the second fixing part is also provided with a second barb. The second barb is engaged with the second insulating body to establish an anti-disconnection connection. The first barb and the second barb are respectively provided on the upper and lower sides of the female and male plug-in directions.

[0011] A further aspect of the above solution is that after the first terminal is inserted into the first terminal hole, the first wiring portion of the first terminal is also inserted into the first terminal hole. The first wiring portion is a U-shaped structure with symmetrically arranged first rivet tabs. The first wiring portion is riveted to the first wire, and the riveted first wiring portion forms a tight contact connection with the inner wall of the first terminal hole.

[0012] The above solution is further described in that, after the second terminal is inserted into the second terminal hole, the second wiring portion of the second terminal is also hidden in the second terminal hole. The second wiring portion is a U-shaped structure with symmetrically arranged second rivet plates. The second wiring portion is riveted to the second wire, and the riveted second wiring portion forms a tight contact connection with the inner wall of the second terminal hole.

[0013] The wire-to-wire connector provided by this invention, through its designed structure, achieves accurate and stable insertion connection between the terminals on the female and male connectors by multi-point alignment and limiting. Simultaneously, it ensures sufficient electrical clearance between adjacent terminals, meeting the safety requirements for electrical clearance in small-sized electrical connectors. Furthermore, the inserted terminals maintain stable coaxial pairing, ensuring good contact conductivity and improving the transmission of current and signals. This invention features a simple structure, low investment cost, convenient manufacturing and assembly, and is also compact and easy to operate. Attached Figure Description

[0014] Appendix Figure 1 This is a schematic diagram of a preferred embodiment of the present invention; Appendix Figure 2 for Figure 1 Schematic diagram of the exploded structure of the embodiment; Appendix Figure 3 for Figure 1 Another perspective view of the structural breakdown of the male and female connectors in the embodiment; Appendix Figure 4 This is a schematic diagram of the structure of the female and male connectors after they are plugged in (excluding the wires). Appendix Figure 5 for Figure 4 Internal structural cross-section Appendix Figure 6 for Figure 4 A schematic diagram of the female connector and male connector being separated; Appendix Figure 7 for Figure 6 Another perspective illustration of the embodiment; Appendix Figure 8 This is a schematic diagram of the second terminal structure of this utility model; Appendix Figure 9 for Figure 8 Another perspective structural diagram. Detailed Implementation

[0015] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model.

[0016] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These terms are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] See Figures 1-9 The diagram shown is a preferred embodiment of the present invention. The present invention relates to a wire-to-wire connector, which includes a female connector and a male connector that are mutually mated and plugged in. The female connector is pre-connected to a first wire 801, and the male connector is pre-connected to a second wire 802. The plugging of the female connector and the male connector enables the first wire 801 and the second wire 802 to be electrically connected.

[0018] The female connector has a first insulating body 1 and several first terminals 2. The first insulating body 1 is flat and has a first plug-in end 11 and a first wiring end 12 facing each other. The first plug-in end 11 is provided with a first locking part 15 and an axially recessed socket 13, and a first guide part 14 is provided on the inner wall of the socket 13. The several first terminals 2 are positioned on the first insulating body 1 and arranged in a row at intervals. The arrangement direction of the several first terminals 2 is consistent with the flat direction of the first insulating body 1, so that the several first terminals 2 are evenly arranged in a small space. The first terminal 2 has a first contact part 21, a first wiring part 22 and a first fixing part 23. The first fixing part 23 forms an anti-detachment connection with the first insulating body 1, so that the first contact part 21 extends into the socket 13 in a set direction. The first wiring part 22 is connected to the first wire 801 in the first wiring end 12. The first wire 801 is a continuous ribbon cable or a combination of multiple single wires. The male connector has a second insulating body 3 and several second terminals 4. The second insulating body 3 is flat and has two oppositely facing second insertion ends 31 and second wiring ends 32. The shape and size of the second insertion ends 31 match the socket 13, and the outer periphery of the second insertion ends 31 is provided with a second guide part 33 and a second locking part 34. The second guide part 33 cooperates with the first guide part 14 to guide the second insertion end 31 to connect with the socket 13, while the second locking part 34 cooperates with the first locking part 15 to prevent the second insertion end 31 from arbitrarily exiting the socket 13, thus providing good shock resistance and anti-dislodgement effect. The several second terminals 4 are positioned on the second insulating body 3 and arranged in a row at intervals. The arrangement direction of the several second terminals 4 is consistent with the flat direction of the second insulating body, so that the several second terminals are evenly distributed in a small space, and the number and arrangement of the second terminals 4 match the first terminals 2. The second terminal 4 has a second contact portion 41, a second wiring portion 42, and a second fixing portion 43. The second fixing portion 43 forms an anti-detachment connection with the second insulating body 3, so that the second contact portion 41 extends into the preset socket 311 of the second plug-in end 31 in a set direction. The second contact portion 41 has an elastic contact arm 411 and a guiding portion 412. The second wiring portion 42 is connected to the second wire 802 in the second wiring end 32. The second wire 802 is a continuous ribbon cable or a combination of multiple single wires.

[0019] When the female and male connectors are plugged in, the second plug end 31 is inserted into the socket 13 and an anti-disengagement relationship is established under the connection of the first locking part 15 and the second locking part 34. The first contact part 21 of the first terminal 2 is inserted into the corresponding socket 311 and is guided by the guide part 412 to stick tightly to the elastic contact arm 411, so that the first terminal 2 and the second terminal 4 form an electrical connection, realizing the wire-to-wire conductive connection of the first wire and the second wire. The second insertion end 31, in cooperation with the first guide part 14 through the second guide part 33, guides the insertion into the socket 13, improving the accuracy and stability of the insertion. The first contact part 21 is inserted into the corresponding socket 311 and is guided by the guide part 412 to fit tightly against the elastic contact arm 411, achieving multi-level guidance. This ensures that the first contact part 21 and the second contact part 41 are coaxially connected and can make stable contact and conduction, improving the electrical connection performance. It achieves accurate and stable insertion connection between the terminals on the female and male connectors, while leaving sufficient electrical clearance between adjacent terminals to meet the safety requirements of electrical clearance for small-sized electrical connectors. The terminals that are inserted into each other maintain stable coaxial pairing, good contact and conduction, and improve the transmission effect of current and signal.

[0020] Figure 5 , 8 As shown in Figure 9, in this embodiment, the second contact portion 41 is a cylindrical shape with a central hole. The elastic contact arm 411 and the guide portion 412 are respectively disposed on the upper and lower sidewalls of the second contact portion, forming a vertically opposite relationship. The elastic contact arm 411 is formed by a partial tear in the second contact portion 41 and bending inwards towards the interior of the second contact portion. The guide portion 412 is formed by a partial inward protrusion of the second contact portion 41. The guide portion 412 has a guide slope 4121 and a pressing surface 4122. The guide slope 4121 guides the first contact portion 21 towards the elastic contact arm 411, while the pressing surface 4122, together with the elastic contact arm 411, clamps the first contact portion 21, increasing the contact area and improving conductivity. Further in this embodiment, the cross-sectional shape of the first contact portion 21 is square, and the central hole of the second contact portion 41 is also square, providing insertion directionality and facilitating the interaction between the guide portion 412 and the elastic contact arm 411 with the first contact portion 21.

[0021] In this embodiment, the first guide portion 14 is a guide groove extending along the insertion direction, and the second guide portion 33 is a raised rib. Both the guide groove and the raised rib have linear properties. The first guide portion 14 and the second guide portion 33 cooperate to guide the second insertion end 31 into the socket 13 while also restricting the left and right displacement of the second insertion end 31 in the insertion direction, which is the insertion direction of the female and male connectors. Further, the first guide portion 14 is respectively disposed on the upper and lower inner walls of the socket 13, and the corresponding second guide portion 33 is disposed on the upper and lower outer peripheral surfaces of the second insertion end 31. In this embodiment, the first guide portion on the upper inner wall of the socket 13 and the first guide portion on the lower inner wall are offset vertically, increasing the guiding and limiting functions.

[0022] In this embodiment, the first locking part 15 has an elastic hook 151 that extends into the socket 13 and a pressing head 152 that protrudes from the outside of the first insulating body 1. The first insulating body 1 has a pre-reserved clearance hole to accommodate the insertion and movement of the elastic hook 151. The second locking part 34 is a protrusion on the outer periphery of the second plug end 31. After the second plug end 31 is inserted into the socket 13, the elastic hook 151 automatically engages with the second locking part 34. To release the engagement, the pressing head 152 is operated to drive the elastic hook 151 to exit the engagement with the second locking part 34. In this embodiment, the first locking part 15 is integrally injection molded with the first insulating body 1. The first locking part 15 is in the shape of a seesaw. Under normal conditions, the elastic hook 151 remains inserted into the socket 13 and forms a locking posture. The second locking part 34 is inserted into the socket 13 along with the second plug end 31. After the elastic hook 151 elastically avoids the second plug end 31, it returns to its original position and locks the second locking part 34. To pull out the second plug end 31, the pressing head 152 is pressed to drive the elastic hook 151 to exit the locking part 34. The locking and unlocking operations are simple.

[0023] In this embodiment, the first insulating body 1 is provided with a first terminal hole 16 that passes through the first plug-in end 11 and the first wiring end 12. The number and distribution of the first terminal holes 16 match the first terminals, enabling the first terminals to be assembled one-to-one into the corresponding first terminal holes, and ensuring that the first terminals are evenly spaced to prevent crosstalk between them. The diameter of the first terminal hole 16 matches the outer diameter of the first terminal 2, so that the first terminal 2 can be inserted and assembled along the first terminal hole 16. The outer contour of the first terminal 2 can be used to support and abut against the inner wall of the first terminal hole 16, increasing the assembly positioning and accuracy, ensuring that the first contact part protrudes into a cantilevered pin shape along the set axis, and improving the subsequent insertion accuracy. While the first fixing part 23 forms an insertion depth limit with the first insulating body 1, the first fixing part 23 is also provided with a first barb 231. The first barb 231 is used to engage with the first insulating body 1 to establish an anti-detachment connection, so that the first terminal is stable in the first insulating body. Furthermore, after the first terminal 2 is inserted into the first terminal hole 16, the first wiring portion 22 of the first terminal is also inserted into the first terminal hole 16. The first wiring portion 22 is a U-shaped structure with symmetrically arranged first rivet tabs 221. The first wiring portion 22 is riveted to the first wire, and the riveted first wiring portion 22 forms a tight contact connection with the inner wall of the first terminal hole 16. During assembly, the first terminal 2 is first riveted to the first wire, and then inserted into the first terminal hole 16 from the first wiring end. The first contact portion extends into the socket 13 and is in the form of a cantilevered pin. The first terminal 2 establishes an anti-detachment connection by engaging with the first insulating body 1 through the first barb 231, and the cooperation between the first terminal 2 and the first terminal hole 16 ensures that several first terminals 2 can be arranged in a row on the same plane after assembly, ensuring the subsequent insertion quality.

[0024] The second insulating body 3 is provided with a second terminal hole 35 that passes through the second plug-in end 31 and the second wiring end 32. The number and distribution of the second terminal holes match the second terminals, so that the second terminals can be assembled one-to-one into the corresponding second terminal holes, and the second terminals can be evenly spaced to prevent crosstalk between the second terminals. The diameter of the second terminal hole 35 matches the outer diameter of the second terminal, so that the second terminal can be inserted and assembled along the second terminal hole. The outer contour of the second terminal can be used to support and abut against the inner wall of the second terminal hole, so as to achieve full insertion assembly, increase assembly positioning and accuracy. One end of the second terminal hole 35 is axially connected to the insertion hole 311 on the second insertion end 31, so that after the second terminal 4 is inserted and assembled along the second terminal hole 35, the central hole of the second contact part 41 connects with the insertion hole 311 to meet the insertion requirements; while the second fixing part 43 of the second terminal and the second insulating body 3 form an insertion depth limit, a second barb 431 is also provided on the second fixing part 43. The second barb 431 engages with the second insulating body 3 to establish an anti-disengagement connection, so that the second terminal is stable in the second insulating body. The first barb 231 and the second barb 431 are respectively provided on the upper and lower sides of the female and male connectors in the insertion direction to increase the insertion and extraction force of the connector. Furthermore, after the second terminal 4 is inserted into the second terminal hole 35, the second wiring portion 42 of the second terminal is also inserted into the second terminal hole 35. The second wiring portion 42 is a U-shaped structure with symmetrically arranged second rivet tabs 421. The second wiring portion 42 is riveted to the second wire, and the riveted second wiring portion 42 forms a tight contact connection with the inner wall of the second terminal hole. During assembly, the second terminal 4 is first riveted to the second wire, and then inserted into the second terminal hole 35 from the second wiring end. The central hole of the second contact portion is coaxially aligned with the insertion hole 311 of the second insertion end. The second terminal establishes an anti-detachment connection by engaging with the second insulating body through the second barb 431. The cooperation between the second terminal 4 and the second terminal hole 35 ensures that several second terminals can be arranged in a row on the same plane after assembly, ensuring the quality of subsequent insertion.

[0025] The wire-to-wire connector provided by this invention, through its designed structure, ensures that several first terminals and several second terminals are neatly arranged, and utilizes the mating insertion between the first insulating body and the second insulating body. The insertion is guided by the cooperation of the second guide part 33 and the first guide part 14, improving insertion accuracy and stability. The first contact part 21 is inserted into the corresponding socket 311 and guided by the guide part 412 to tightly adhere to the elastic contact arm 411. Multi-level alignment and limiting ensure that the first contact part 21 and the second contact part 41 are coaxially connected and can maintain stable contact and conduction, improving electrical connection performance. It achieves accurate and stable insertion connection between the terminals on the female and male connectors, while maintaining sufficient electrical clearance between adjacent terminals, meeting the safety requirements for electrical clearance in small-sized electrical connectors. The interlocking terminals maintain stable coaxial pairing, good contact and conduction, and improved current and signal transmission. This invention has a simple structure, low investment cost, convenient manufacturing and assembly, and is compact and easy to operate.

[0026] The wire-to-wire connector provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A wire-to-wire connector, comprising a female and a male connector that mate and interlock, characterized in that: The female connector has a first insulating body (1) and several first terminals (2). The first insulating body (1) is flat and has a first plug-in end (11) and a first wiring end (12) facing each other. The first plug-in end (11) is provided with a first locking part (15) and an axially recessed socket (13), and a first guide part (14) is provided on the inner wall of the socket (13). The several first terminals (2) are positioned on the first insulating body (1) and arranged in a row. The first terminal (2) has a first contact part (21), a first wiring part (22) and a first fixing part (23). The first fixing part (23) forms an anti-disconnection connection with the first insulating body (1), so that the first contact part (21) extends into the socket (13) in a set direction, and the first wiring part (22) is connected to the first wire in the first wiring end (12). The male connector has a second insulating body (3) and several second terminals (4). The second insulating body (3) is flat and has a second plug-in end (31) and a second terminal (32) facing each other. The shape and size of the second plug-in end (31) match the socket (13). The outer periphery of the second plug-in end (31) is provided with a second guide part (33) and a second locking part (34). The second guide part (33) cooperates with the first guide part (14) to guide the second plug-in end (31) to plug into the socket (13). The second locking part (34) cooperates with the first locking part (15). Connection; the plurality of second terminals (4) are positioned on the second insulating body (3) and arranged in a row. The second terminal (4) has a second contact part (41), a second wiring part (42) and a second fixing part (43). The second fixing part (43) forms an anti-disengagement connection with the second insulating body (3), so that the second contact part (41) extends into the preset socket (311) of the second plug-in end (31) in a set direction. The second contact part (41) has an elastic contact arm (411) and a guiding part (412). The second wiring part (42) is connected to the second wire in the second wiring end (32). When the female and male connectors are plugged in, the second plug end (31) is inserted into the socket (13) and an anti-dislodgement relationship is established under the connection of the first locking part (15) and the second locking part (34). The first contact part (21) of the first terminal (2) is inserted into the corresponding socket (311) and is guided by the guide part (412) to stick to the elastic contact arm (411), so that the first terminal (2) and the second terminal (4) form an electrical connection, realizing the wire-to-wire conductive connection of the first conductor and the second conductor.

2. The wire-to-wire connector according to claim 1, characterized in that: The second contact portion (41) is a cylindrical shape with a central hole. The elastic contact arm (411) and the guide portion (412) are respectively disposed on the upper and lower side walls of the second contact portion. The elastic contact arm (411) is formed by partially tearing the second contact portion (41) and bending it inward. The guide portion (412) is formed by partially protruding inward from the second contact portion (41). The guide portion (412) has a guide slope (4121) and a pressing surface (4122). The guide slope (4121) guides the first contact portion (21) to approach the elastic contact arm (411), and the pressing surface (4122) clamps the first contact portion (21) together with the elastic contact arm (411).

3. The wire-to-wire connector according to claim 1, characterized in that: The first guide part (14) is a guide groove extending along the insertion direction, and the second guide part (33) is a rib. The first guide part (14) and the second guide part (33) cooperate to guide the second insertion end (31) to be inserted into the socket (13) while also restricting the left and right displacement of the second insertion end (31) in the insertion direction.

4. The wire-to-wire connector according to claim 3, characterized in that: The first guide portion (14) is respectively disposed on the upper and lower inner walls of the socket (13), and the corresponding second guide portion (33) is disposed on the upper and lower outer peripheral surfaces of the second plug end (31).

5. The wire-to-wire connector according to claim 1, characterized in that: The first locking part (15) has an elastic hook (151) that extends into the socket (13) and a pressing head (152) that protrudes from the outside of the first insulating body (1); the second locking part (34) is a protrusion on the outer periphery of the second plug end (31). After the second plug end (31) is inserted into the socket (13), the elastic hook (151) automatically engages with the second locking part (34). When the engagement is to be released, the pressing head (152) is operated to drive the elastic hook (151) to exit the engagement of the second locking part (34).

6. The wire-to-wire connector according to claim 2, characterized in that: The cross-sectional shape of the first contact part (21) is square, and the central hole of the second contact part (41) is also square.

7. The wire-to-wire connector according to claim 1, characterized in that: The first insulating body (1) is provided with a first terminal hole (16) through the first plug-in end (11) and the first wiring end (12). The first terminal (2) is inserted and assembled along the first terminal hole (16). The first fixing part (23) and the first insulating body (1) form an insertion depth limit. At the same time, the first fixing part (23) is also provided with a first barb (231). The first barb (231) is engaged with the first insulating body (1) to establish an anti-detachment connection. The second insulating body (3) is provided with a second plug-in end (12) through the first terminal hole (13). 31) The second terminal hole (35) of the second terminal (32) is inserted and assembled along the second terminal hole (35). The second fixing part (43) of the second terminal and the second insulating body (3) form an insertion depth limit. At the same time, the second fixing part (43) is also provided with a second barb (431). The second barb (431) is engaged with the second insulating body (3) to establish an anti-detachment connection. The first barb (231) and the second barb (431) are respectively provided on the upper and lower sides of the female and male plug-in directions.

8. The wire-to-wire connector according to claim 7, characterized in that: After the first terminal (2) is inserted into the first terminal hole (16), the first wiring part (22) of the first terminal is then hidden in the first terminal hole (16). The first wiring part (22) is a U-shaped structure with symmetrically arranged first rivet plates (221). The first wiring part (22) is riveted to the first wire, and the riveted first wiring part (22) forms a tight contact connection with the inner wall of the first terminal hole (16).

9. The wire-to-wire connector according to claim 7, characterized in that: After the second terminal (4) is inserted into the second terminal hole (35), the second wiring part (42) of the second terminal is then hidden in the second terminal hole (35). The second wiring part (42) is a U-shaped structure with symmetrically arranged second rivet plates (421). The second wiring part (42) is riveted to the second wire, and the riveted second wiring part (42) forms a tight contact connection with the inner wall of the second terminal hole.

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