High-strength connector terminal

Abstract

The utility model relates to the field of connector terminals, and discloses a high-strength connector terminal which comprises a wire bunching assembly and a plugging assembly for plugging of a plugging piece, a plugging cavity for plugging of the plugging piece is formed in the plugging assembly, a plugging port is formed in one side, inserted into the plugging cavity, of the plugging piece, the plugging assembly further comprises a shell, and the shell is arranged in the plugging cavity. The shell comprises a first connecting piece and a second connecting piece, one end of the first connecting piece is provided with a tenon, one end of the second connecting piece is provided with a mortise matched with the tenon, the tenon is in joggle joint with the mortise, the terminal of the connector is provided with the mortise and the tenon, and the mortise and the tenon are in wedged joggle joint. According to the utility model, close fit between the first connecting piece and the second connecting piece can be ensured, the binding force of the shell is improved, the terminal can bear large torque and tensile force, meanwhile, force can be effectively transmitted, the tensile force is not required to be borne by a connecting bolt, and thus the stability and reliability of connection are improved.

Description

Technical Field

[0001] This application relates to the field of connector terminals, and in particular to a high-strength connector terminal. Background Technology

[0002] Terminal blocks are accessories used to achieve electrical connections. They are used to facilitate the connection of wires and are usually a metal sheet encased in insulating plastic with holes at both ends for inserting wires. Terminal blocks can be divided into plug-in terminal blocks, European-style terminal blocks, etc.

[0003] Terminals in connectors are indispensable components in electrical connections. Currently, terminal blocks on the market are usually integrally molded fixed structures. When connectors are used in environments with vibration and shock, the terminals will be subjected to different forces such as compression and tension. Over long-term use, this will reduce the strength of the terminals and affect the stability of the connector. Utility Model Content

[0004] To improve the stability of connector terminals, a high-strength connector terminal is provided.

[0005] The above-mentioned objective of this application is achieved through the following technical solution:

[0006] A high-strength connector terminal includes a wire harness assembly and a plug assembly for inserting a prong. The plug assembly has a plug cavity for inserting the prong, and a plug interface is provided on the side of the prong that inserts into the plug cavity. The plug assembly also includes a housing, which includes a first connector and a second connector. One end of the first connector is fitted with a tenon, and one end of the second connector has a mortise that matches the tenon. The tenon and the mortise are tenon-jointed.

[0007] By adopting the above technical solution, a tenon and a groove are provided on the terminal of the connector. The tenon and groove fit together to ensure a tight fit between the first connector and the second connector, improve the bonding force of the housing, enable the terminal to withstand greater torque and tension, and effectively transmit force without the need for connecting bolts to bear tension, thereby improving the stability and reliability of the connection.

[0008] Optionally, the tenon is dovetail-shaped, and the mortise is dovetail-groove-shaped.

[0009] By adopting the above technical solution, the dovetail groove and the dovetail tenon are matched in shape, which can ensure a tight fit between the first connector and the second connector even under vibration, impact and other environments, thereby improving the stability and reliability of the plug-in assembly.

[0010] Optionally, a joint is provided at the tenon-mortise joint, with a joint spacing of 0.01~0.1mm.

[0011] By adopting the above technical solution and adding a connecting seam, it is easier to insert the tenon into the mortise when installing the terminal block, reducing the difficulty of the installation process. At the same time, when the connector terminal is subjected to external forces, such as vibration or impact, stress concentration is easily generated at the tenon joint. Setting a gap can play a certain buffering role, disperse stress, reduce the risk of terminal block damage caused by stress concentration, and improve the reliability of the connector terminal.

[0012] Optionally, the housing further includes a first sidewall and a second sidewall, the first sidewall being fixedly connected to the side of the first connector away from the tenon, and the second sidewall being fixedly connected to the side of the second connector away from the mortise; the insertion assembly includes a first limiting block and a second limiting block, the first limiting block being fixedly connected to the first sidewall and located on the side facing the second sidewall, and the first limiting block abutting against the first connector; the second limiting block being fixedly connected to the second sidewall and located on the side facing the first sidewall, and the second limiting block abutting against the second connector.

[0013] By adopting the above technical solution, when the mortise and tenon are matched, the limiting block makes it less likely for the mortise to be misaligned when it is inserted into the tenon, which facilitates the installation process of the mortise and tenon joint and avoids the mortise or tenon shell on the terminal being exposed alone, which would affect the current transmission effect of the terminal.

[0014] Optionally, the first limiting block is provided with a first limiting surface, which abuts against the first connecting member, and the second limiting block is provided with a second limiting surface, which abuts against the second connecting member.

[0015] By adopting the above technical solution, the first limiting surface fits and abuts against the first connecting piece, and the second limiting surface fits and abuts against the second connecting piece. The first limiting surface limits the first limiting block, and the second limiting surface limits the second limiting block, so that the mortise and tenon are relatively parallel and aligned. This avoids vertical misalignment when the mortise and tenon are joined, and improves the stability of the mortise and tenon joint.

[0016] Optionally, the first limiting block is located on the side of the first sidewall facing away from the insertion interface, and the second limiting block is located on the side of the second sidewall facing away from the insertion interface.

[0017] By adopting the above technical solution, the insert is prone to collision with the limiting block when it is frequently inserted and removed from the insertion cavity, which affects the stability of the electrical connection between the terminals. Therefore, the limiting block is fixedly connected to the side facing away from the insertion interface, making the connection of the limiting block more stable.

[0018] Optionally, a first contact spring extending toward the insertion cavity is installed on the first sidewall, and a second contact spring extending toward the insertion cavity is installed on the second sidewall. Guide plates are provided on the end of the first and second contact springs near the insertion interface, and the guide plates extend from the insertion interface toward the wire harness assembly.

[0019] By adopting the above technical solution, the contact area between the insert and the guide plate is reduced, thereby reducing the insertion and extraction force during the insertion and removal process; at the same time, the contact pressure between the insert and the first contact spring and the second contact spring is increased, the contact effect is improved, the electrical connection between the insert and the first contact spring and the second contact spring is better, and the conductivity stability of the terminal is improved.

[0020] Optionally, the thickness of the first contact spring and the second contact spring gradually increases from the insertion interface side toward the wire harness assembly.

[0021] By adopting the above technical solution, the insert can pass through the first contact spring and the second contact spring more easily when it first makes contact. As the insertion depth of the insert gradually increases, the force required to insert it is restricted.

[0022] Optionally, the plug-in assembly includes a first guide block and a second guide block. The first guide block is fixedly connected to a first sidewall on one side of the plug-in interface and is located on the side facing the second sidewall. The second guide block is fixedly connected to a second sidewall on one side of the plug-in interface and is located on the side facing the first sidewall. Both the first guide block and the second guide block are provided with guide surfaces, and the guide surfaces are inclined surfaces.

[0023] By adopting the above technical solution, the insertion direction of the insert can be guided during the insertion and removal of the insert from the first contact spring and the second contact spring, without the need for excessive alignment. At the same time, the first guide block and the second guide block also have a limiting function, which can provide stable and continuous positioning for the movement trajectory of the insert.

[0024] In summary, this application has at least the following beneficial effects:

[0025] The connector's terminal housing features a tenon and a groove, which fit together to ensure a tight fit between the first and second connectors, improving the bonding force of the plug assembly. This allows the terminals to withstand greater torque and tension, while effectively transmitting force without requiring connecting bolts to bear the tension, thus enhancing the stability and reliability of the connection. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the insert connection structure;

[0027] Figure 2This is a schematic diagram of the structure of a high-strength connector terminal;

[0028] Figure 3 for Figure 2 A magnified view of a portion at point A;

[0029] Figure 4 for Figure 2 Side view in the direction of the insertion interface;

[0030] Figure 5 for Figure 2 Side view in the direction of the wire harness assembly.

[0031] Reference numerals: 1. Insert; 2. Plug-in assembly; 21. Housing; 211. First connector; 2111. Tenon; 212. Second connector; 2211. Mortise; 213. First sidewall; 214. Second sidewall; 215. Notch; 216. Third connector; 217. Joint; 22. First contact spring; 23. Second contact spring; 24. Plug-in cavity; 241. Plug-in interface; 25. Guide piece; 26. First limiting block; 261. First limiting surface; 27. Second limiting block; 271. Second limiting surface; 28. First guide block; 29. ​​Second guide block; 3. Wire harness assembly; 31. Wire harness end with plastic shell; 32. Wire harness end. Detailed Implementation

[0032] The following section provides a more detailed description, in conjunction with the accompanying diagrams:

[0033] As attached Figure 1 As shown, a high-strength connector terminal includes a wire harness assembly 3 and a plug assembly 2 for inserting a prong 1.

[0034] As attached Figure 1 and attached Figure 2 As shown, the plug-in assembly 2 includes a housing 21, which includes a first connector 211, a second connector 212, a first sidewall 213, a second sidewall 214, and a third connector 216.

[0035] The first sidewall 213 is parallel to the second sidewall 214. The first sidewall 213 and the second sidewall 214 are respectively vertically fixed to both sides of the third connector 216, and the three together form a insertion cavity 24 for inserting the insert 1. One side of the insertion cavity 24 has an insertion interface 241 for inserting the insert 1. The side of the third connector 216 facing away from the insertion interface 241 is fixedly connected to the wire harness assembly 3.

[0036] As attached Figure 2 and attached Figure 3As shown, one side of the first connector 211 is fixedly connected to the first sidewall 213. The first connector 211 and the first sidewall 213 are formed by bending a thin metal plate or sheet, and the bending angle here is 90°. One side of the second connector 212 is fixedly connected to the second sidewall 214. The second connector 211 and the second sidewall 214 are formed by bending a thin metal plate or sheet, and the bending angle here is 90°.

[0037] The other side of the first connector 211 extends a tenon 2111, and the other end of the second connector 212 has a mortise 2211 that matches the tenon 2111. The tenon 2111 and the mortise 2211 are tenoned together. Here, the tenon 2111 is dovetail-shaped and the mortise 2211 is dovetail-groove. The structural fit between the mortise 2211 and the tenon 2111 makes the connection between the first connector 211 and the second connector 212 stable. Under environments such as vibration and impact, the tight fit between the first connector 211 and the second connector 212 can also be ensured, thereby improving the stability and reliability of the plug-in assembly 2.

[0038] A connecting seam 217 is also provided at the joint of the tenon 2111 and the mortise 2211. The spacing of the connecting seam 217 is 0.01~0.1mm, so that there is a gap allowance when the tenon 2111 and the mortise 2211 are tenoned. When assembling the first connector 211 and the second connector 212, it is easier to insert the tenon 2111 into the mortise 2211, reducing the difficulty of the assembly process. At the same time, the tenon joint is prone to stress concentration, and the connecting seam 217 can play a certain buffering role and disperse the stress.

[0039] As attached Figure 2 and attached Figure 4 As shown, the plug-in assembly 2 also includes a first limiting block 26 and a second limiting block 27, both of which are square in shape. The first limiting block 26 is located on the side of the first sidewall 213 facing away from the plug-in interface 241. The first limiting block 26 is fixedly connected to the first sidewall 213 and is located on the side facing the second sidewall 214. The first limiting block 26 is also provided with a first limiting surface 261, which abuts against one side of the first connector 211.

[0040] The second limiting block 27 is located on the side of the second side wall 214 facing away from the insertion interface 241. The second limiting block 27 is fixedly connected to the second side wall 214, and the second limiting block 27 is located on the side facing the first side wall 213. The second limiting block 27 is provided with a second limiting surface 271, and the second limiting surface 271 is in contact with one side of the second connector 212.

[0041] When the mortise 2211 and the tenon 2111 are joined together, the first limiting surface 261 limits the first limiting block 26, and the second limiting surface 271 limits the second limiting block 27, so that the mortise 2211 and the tenon 2111 are relatively parallel. This avoids misalignment when the mortise 2211 and the tenon 2111 are joined together, and facilitates the joining process of the mortise 2211 and the tenon 2111.

[0042] As attached Figure 2 and attached Figure 5 As shown, the plug-in assembly 2 also includes a first contact spring 22 and a second contact spring 23. A first contact spring 22 extending into the plug-in cavity 24 is mounted on a first sidewall 213, and a second contact spring 23 extending into the plug-in cavity 24 is mounted on a second sidewall 214. Both the first sidewall 213 and the second sidewall 214 have recesses 215. One end of the first contact spring 22 and the second contact spring 23 are respectively fixedly connected to the recesses 215 on the side facing away from the plug-in interface 241. The shapes of the first contact spring 22 and the second contact spring 23 near the plug-in interface 241 are both arc-shaped. After the insert 1 is inserted into the insertion cavity 24, it is clamped by the first contact spring 22 and the second contact spring 23, which reduces the contact area between the insert 1 and the insertion assembly 2, thereby reducing the insertion and extraction force during the insertion and removal of the insert 1. At the same time, the arc shape can guide the insert 1 and reduce the friction between the insert 1 and the first contact spring 22 and the second contact spring 23, so that the insert 1 can be inserted into the insertion assembly 2 more smoothly.

[0043] The thickness of the first contact spring 22 in the direction parallel to the first sidewall 213 gradually increases from the insertion interface 241 towards the wire harness assembly 3, and the thickness of the second contact spring 23 in the direction parallel to the second sidewall 214 gradually increases from the insertion interface 241 towards the wire harness assembly 3; this allows the insert 1 to pass through the first contact spring 22 and the second contact spring 23 more easily when inserted, while the force required for the insertion depth of the insert 1 gradually increases, thus restricting the insertion of the insert 1.

[0044] The first contact spring 22 and the second contact spring 23 are also provided with guide plates 25 near the insertion interface 241, and the guide plates 25 extend from the insertion interface 241 toward the wire harness assembly 3. When the insert 1 is inserted into the insertion cavity 24 between the first contact spring 22 and the second contact spring 23, the guide plates 25 make direct contact with the insert 1, increasing the contact pressure between the insert 1 and the first contact spring 22 and the second contact spring 23, making the contact more reliable, and improving the electrical connection between the insert 1 and the insertion assembly 2.

[0045] The plug-in assembly 2 also includes a first guide block 28 and a second guide block 29. The first guide block 28 is fixedly connected to a first sidewall 213 on one side of the plug-in interface 241, and the first guide block 28 is located on the side facing the second sidewall 214.

[0046] The second guide block 29 is fixedly connected to the second sidewall 214 on one side of the insertion interface 241, and the second guide block 29 is located on the side facing the first sidewall 213.

[0047] Both the first guide block 28 and the second guide block 29 are triangular in shape. Both the first guide block 28 and the second guide block 29 are provided with a guide surface 281, and the guide surface 281 is an inclined surface. The distance between the first guide block 28 and the second guide block 29 gradually decreases from the insertion interface 241 toward the wire harness assembly 3. This can provide a guiding insertion direction for the insert 1 during the insertion of the insert 1 and the insertion assembly 2 without requiring excessive alignment.

[0048] The wire harness assembly 3 includes a housing wire harness end 31 and a wire harness end 32.

[0049] Both the housing wire harness end 31 and the wire harness end 32 are U-shaped. One end of the wire harness end 32 is fixedly connected to the third connector 216, and the other end is fixedly connected to the housing wire harness end 31. The connection points are both arc-shaped. The wire is inserted into the wire harness assembly 3 from the housing wire harness end 31. After the wire is inserted into the wire harness assembly 3, the wire harness end 32 and the housing wire harness end 31 clamp the wire, securing it in place. The wire core is in direct contact with the wire harness end 32 for electrical connection.

[0050] The principle of this embodiment:

[0051] The first connector 211 and the second connector 212 are connected by mortise and tenon joints, which keeps the connector terminal structurally stable and undeformed when subjected to external impact, protecting the insert 1 and the insertion assembly 2 from damage. At the same time, the thickness variation of the first contact spring 22 and the second contact spring 23 makes the insert 1 stable and not easy to loosen due to vibration. Therefore, the connector terminal structure of this application is stable, has high connection strength, and is effectively adapted to use in vibration environments.

[0052] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of protection claimed in this application.

Claims

1. A high-strength connector terminal, comprising a wire harness assembly (3) and a plug assembly (2) for inserting a prong (1), wherein the plug assembly (2) has a plug cavity (24) for inserting the prong (1), and a plug interface (241) is provided on the side of the prong (1) that inserts into the plug cavity (24), characterized in that, The plug-in assembly (2) also includes a housing (21), which includes a first connector (211) and a second connector (212). One end of the first connector (211) is fitted with a tenon (2111), and one end of the second connector (212) is provided with a mortise (2211) that matches the tenon (2111). The tenon (2111) and the mortise (2211) are tenoned together.

2. The high-strength connector terminal according to claim 1, characterized in that, The tenon (2111) is dovetail shaped, and the mortise (2211) is dovetail groove shaped.

3. A high-strength connector terminal according to claim 1, characterized in that, The tenon (2111) and the mortise (2211) are joined by a joint (217), and the spacing of the joint (217) is 0.01~0.1mm.

4. A high-strength connector terminal according to claim 1, characterized in that, The housing (21) further includes a first sidewall (213) and a second sidewall (214). The first sidewall (213) is fixedly connected to the side of the first connector (211) away from the tenon (2111), and the second sidewall (214) is fixedly connected to the side of the second connector (212) away from the mortise (2211). The plug-in assembly (2) includes a first limiting block (26) and a second limiting block (27). The first limiting block (26) is fixedly connected to the first sidewall (213) and is located on the side facing the second sidewall (214). The first limiting block (26) fits and abuts against the first connector (211). The second limiting block (27) is fixedly connected to the second sidewall (214) and is located on the side facing the first sidewall (213). The second limiting block (27) fits and abuts against the second connector (212).

5. A high-strength connector terminal according to claim 4, characterized in that, The first limiting block (26) is provided with a first limiting surface (261), which is in contact with the first connecting member (211). The second limiting block (27) is provided with a second limiting surface (271), which is in contact with the second connecting member (212).

6. A high-strength connector terminal according to claim 5, characterized in that, The first limiting block (26) is located on the side of the first sidewall (213) facing away from the insertion interface (241), and the second limiting block (27) is located on the side of the second sidewall (214) facing away from the insertion interface (241).

7. A high-strength connector terminal according to claim 6, characterized in that, A first contact spring (22) extending toward the insertion cavity (24) is installed on the first sidewall (213), and a second contact spring (23) extending toward the insertion cavity (24) is installed on the second sidewall (214). Both the first contact spring (22) and the second contact spring (23) are provided with guide plates (25) at the end near the insertion interface (241), and the guide plates (25) extend from the insertion interface (241) toward the wire harness assembly (3).

8. A high-strength connector terminal according to claim 7, characterized in that, The thickness of the first contact spring (22) and the second contact spring (23) gradually increases from the side of the insertion interface (241) toward the wire assembly (3).

9. A high-strength connector terminal according to claim 1, characterized in that, The plug-in assembly (2) includes a first guide block (28) and a second guide block (29). The first guide block (28) is fixedly connected to a first sidewall (213) on one side of the plug-in interface (241) and is located on the side facing the second sidewall (214). The second guide block (29) is fixedly connected to a second sidewall (214) on one side of the plug-in interface (241) and is located on the side facing the first sidewall (213). Both the first guide block (28) and the second guide block (29) are provided with a guide surface (281), and the guide surface (281) is an inclined surface.

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