Terminal convenient to disassemble and replace

Abstract

The utility model relates to a terminal convenient to disassemble and replace, which comprises a conductor, the conductor is provided with a plugging end at the front end, a wiring end at the rear end and a mounting shaft section, and the periphery of the mounting shaft section is provided with a raised arc-shaped elastic part and a limiting table; the arc-shaped elastic parts are close to the inserting end and are annularly distributed on the periphery of the mounting shaft section at intervals, each arc-shaped elastic part is provided with a first slope facing the inserting end and a second slope back to the inserting end, the axial length of the first slope is larger than that of the second slope, and the oblique angle of the first slope is smaller than that of the second slope; the insulating main body is provided with a terminal hole which is adaptive to implantation and assembly of a conductor, and the terminal hole is provided with a first step and a second step which are back to back; after the conductor is implanted into the terminal hole, the first step is used for supporting the second slope of the arc-shaped elastic part to prevent the conductor from falling off; and the second step is used for supporting and limiting the limiting table and limiting the implantation depth of the conductor. Dismounting, replacement and maintenance are achieved, the use cost is reduced, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to terminals on electric connectors. Background Art

[0002] An electrical connector is a component used to complete electrical connections between circuits or electronic devices, and plays the role of connecting or disconnecting current or signals. It generally includes an insulating body and terminals. In addition to meeting general performance requirements, an especially important requirement for electrical connectors is that they must have good contact, reliable operation, and easy maintenance. In existing electrical connectors, the terminals and the insulating body cannot be separated after assembly and cannot be disassembled and replaced for maintenance. For occasions with high maintenance frequency, the entire electrical connector can only be replaced together, resulting in waste and high operating costs. Summary of the invention

[0003] The purpose of the utility model is to provide a terminal that is easy to disassemble and replace, has the advantages of easy disassembly and maintenance, reduces the use cost, and improves the assembly quality and maintenance convenience through effective structural design.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A terminal that is easy to disassemble and replace, comprising a conductor, wherein the conductor has a plug-in end at the front end, a wiring end at the rear end, and a mounting shaft section that extends straight backward from the plug-in end and connects to the wiring end, and a raised arc-shaped elastic part and a limit platform are provided on the outer periphery of the mounting shaft section;

[0006] The limit platform is close to the wiring terminal and is used for assembly limit;

[0007] The arc-shaped elastic part is close to the plug-in end and is distributed at annular intervals on the outer periphery of the mounting shaft section, the arc-shaped elastic part has a first slope facing the plug-in end and a second slope facing away from the plug-in end, the axial length of the first slope is greater than the axial length of the second slope, and the angle of the first slope is smaller than the angle of the second slope; and a matching insulating body,

[0008] The insulating body is provided with a terminal hole adapted for conductor implantation and assembly, and the terminal hole is provided with a first step and a second step facing back to back to each other; after the conductor is implanted into the terminal hole, the first step is used to prevent it from falling off with the second slope support top of the arc-shaped elastic part; the second step is used to limit the position with the limit platform support top to limit the implantation depth of the conductor.

[0009] The above scheme is further that the terminal hole passes through the front end and the rear end of the insulating body, the conductor is implanted into the terminal hole from the rear end of the insulating body to the front, the plug-in end of the conductor is hidden in the terminal hole, and the wiring end of the conductor is exposed outside the rear end of the insulating body; a widened countersunk hole is provided on the outer periphery of the front port of the terminal hole, the widened countersunk hole extends along the axial direction of the terminal hole and ends at the inside of the insulating body, and the first step is the inner bottom of the widened countersunk hole.

[0010] The above scheme is further that the conductor is a solid cylindrical body, a spring clip is sleeved on the outer periphery of the mounting shaft section, and the arc-shaped elastic portion is a corrugated spring formed by a local protrusion of the spring clip.

[0011] The above scheme is further characterized in that the plug-in end of the conductor is provided with an axially concave plug hole, and a claw spring is embedded in the plug hole.

[0012] The utility model implants the conductor into the terminal hole of the insulating body, and provides a raised arc-shaped elastic part and a limit platform on the periphery of the installation shaft section of the conductor, the arc-shaped elastic part is close to the plug-in end and is distributed in an annular interval on the periphery of the installation shaft section, and the arc-shaped elastic part has a first slope facing the plug-in end and a second slope facing away from the plug-in end; after the conductor is implanted into the terminal hole, the first step of the terminal hole and the second slope of the arc-shaped elastic part support top to prevent falling off, and the second step of the terminal hole and the limit platform support top limit to limit the implantation depth of the conductor, thereby achieving the front and rear limit of the conductor assembly, meeting the conductor assembly use and being stable; at the same time, the structure of the arc-shaped elastic part is effectively designed, so that the axial length of the first slope is greater than the axial length of the second slope, and the angle of the bevel of the first slope is smaller than the angle of the bevel of the second slope, so that the conductor assembly insertion force is smaller than the pull-out force, that is, the conductor implantation assembly is easy, but has a strong anti-falling performance, ensuring the implementation of terminal assembly. When disassembly is required, one only needs to squeeze the arc-shaped elastic part hard to make the second slope and the first step of the terminal hole withdraw from the support top, and then the conductor can be pulled out for repair or replacement. The terminal of the utility model can be used in products with long plug-in life, harsh application environment, and high maintenance frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 This is a schematic diagram of the structure of a preferred embodiment of the utility model;

[0014] Attached Figure 2 for Figure 1 A schematic diagram of the structural decomposition of an embodiment;

[0015] Attached Figure 3 for Figure 1 A cross-sectional view of the internal structure;

[0016] Attached Figure 4 for Figure 1 Schematic diagram of the terminal structure;

[0017] Attached Figure 5 for Figure 4 Schematic diagram of the terminal structure breakdown. DETAILED DESCRIPTION

[0018] The concept, specific structure and technical effects of the utility model will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the utility model.

[0019] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] See also Figures 1 to 5 As shown, it is a schematic diagram of a preferred embodiment of the utility model. The utility model is related to a terminal that is easy to disassemble and replace, which includes a conductor 1, the conductor 1 has a plug-in terminal 11 at the front end, a wiring terminal 12 at the rear end, and a mounting shaft section 13 that extends straightly backward from the plug-in terminal and connects to the wiring terminal. The outer periphery of the mounting shaft section 13 is provided with a raised arc-shaped elastic portion 14 and a limit platform 15; the limit platform 15 is close to the wiring terminal 12 and is used for assembly limit, which is convenient for terminal assembly positioning. The arc-shaped elastic portion 14 is close to the plug-in terminal 11 and is distributed in an annular interval on the outer periphery of the mounting shaft section 13, so that multiple points work together, increase the clamping force, and improve the plug-in and pull-out usability of the connector. The arc-shaped elastic portion 14 has a first slope 141 facing the plug-in terminal 11 and a second slope 142 facing away from the plug-in terminal 11. The axial length of the first slope 141 is greater than the axial length of the second slope 142, and the angle of the bevel of the first slope 141 is smaller than the angle of the bevel of the second slope 142. And a matching insulating body 2, the insulating body 2 is provided with a terminal hole 21 adapted for implanting and assembling the conductor 1, and the terminal hole 21 is provided with a first step 211 and a second step 212 facing each other. After the conductor 1 is implanted into the terminal hole 21, the first step 211 is used to support and prevent the conductor 1 from falling off with the second slope 142 of the arc-shaped elastic part 14; the second step 212 is used to support and limit the position of the limit platform 15 to limit the implantation depth of the conductor 1.

[0021] During assembly, the cable 5 is first connected to the terminal 12 of the conductor 1 by welding or riveting. Figure 1 , 2As shown in Figure 3, the cable 5 is welded to the terminal 12 of the conductor 1. The terminal 12 of the conductor 1 is designed in the form of a tray, which is convenient for overlapping the cable 5 and tinning and welding, thereby increasing the connection firmness and conductivity. Subsequently, the conductor 1 is implanted into the terminal hole 21 of the insulating body 2. During the implantation process, the arc-shaped elastic part 14 is squeezed and contracted. When assembled in place, the arc-shaped elastic part 14 is naturally popped open after being freed from squeezing, thereby realizing the second slope 142 and the first step 211 to support and prevent the top from falling off. At the same time, the second step 212 is used to support and limit with the limit platform 15 to form front and rear restrictions to complete the assembly. At the same time, the structure of the arc-shaped elastic part 14 is effectively designed, so that the axial length of the first slope 141 is greater than the axial length of the second slope 142, and the angle of the bevel of the first slope 141 is smaller than the angle of the bevel of the second slope 142. In this way, the conductor assembly insertion force is less than the pull-out force, that is, the conductor implantation and assembly are easy, but it has a strong anti-falling performance to ensure the implementation of terminal assembly. When disassembly is required, the arc-shaped elastic part only needs to be squeezed hard to make the second slope and the first step of the terminal hole withdraw from the support top, and the conductor can be pulled out for maintenance or replacement.

[0022] Figure 3 As shown, in this embodiment, the terminal hole 21 passes through the front and rear ends of the insulating body 2 and is in the form of a straight hole; the conductor 1 is implanted into the terminal hole 21 from the rear end of the insulating body 2, the plug-in end 11 of the conductor 1 is hidden in the terminal hole 21, and the wiring end 12 of the conductor 1 is exposed outside the rear end of the insulating body 2; a widened countersunk hole 22 is provided on the outer periphery of the front end of the terminal hole 21, the widened countersunk hole 22 extends along the axial direction of the terminal hole 21 and stops at the inside of the insulating body 2, the first step 211 is the inner bottom of the widened countersunk hole 22, the structure is simple, and it is easy to make. With this design, when it is necessary to withdraw the conductor 1, a tool (such as a small ejector pin) is used to press hard in the direction of withdrawing the conductor 1, and the arc-shaped elastic part 14 is squeezed and then contracts, and then the conductor 1 can be withdrawn from the terminal hole, which is easy to operate.

[0023] Figure 2 , 3 As shown in Figures 4 and 5, in this embodiment, the conductor 1 is a solid cylindrical body, which meets the corresponding rigidity and conduction requirements; the spring clip 3 is sleeved on the outer periphery of the mounting shaft section 13, and the arc-shaped elastic portion 14 is a corrugated spring piece constructed by the local protrusion of the spring clip 3. Specifically, the spring clip 3 is rolled up by a sheet and partially cut off in the middle section, and the remaining connecting piece is bent and raised to construct the arc-shaped elastic portion 14, and the required elasticity and the structural features of the first slope 141 and the second slope 142 with distinction are obtained, and the structure is simple and easy to manufacture. Figure 2 , 3As shown in , 4 and 5, after the spring clip tube 3 is sleeved, the front and rear ends are supported by the preset shoulders on the mounting shaft section 13, so as to obtain axial limit, and the assembly is simple and the conductor 1 is also removable. In this embodiment, the plug-in end 11 of the conductor 1 is provided with an axially concave plug hole 111, and a claw spring 4 is embedded in the plug hole 111, which is convenient for plugging and conducting with an external connection element and increasing contact conductivity.

[0024] The terminal of the utility model is detachable and replaceable, and can be used in scenarios where the product has a long plug-in life and is in a harsh application environment and requires high maintenance frequency.

[0025] Although the preferred specific embodiments of the present invention are described above in conjunction with the accompanying drawings, the present invention should not be limited to the structures and operations that are exactly the same as the above description and the accompanying drawings. For those skilled in the art, many equivalent improvements and changes can be made to the above embodiments through logical analysis, reasoning or limited experiments without exceeding the concept and scope of the present invention, but these improvements and changes should all fall within the scope of protection required by the present invention.

Claims

1. A terminal that is easy to disassemble and replace, characterized in that: The conductor (1) comprises a plug-in end (11) at the front end, a wiring end (12) at the rear end, and a mounting shaft section (13) extending straight backward from the plug-in end and connected to the wiring end, and a raised arc-shaped elastic portion (14) and a limit platform (15) are provided on the outer periphery of the mounting shaft section (13); The limiting platform (15) is close to the wiring terminal (12) and is used for assembly limiting; The arc-shaped elastic portion (14) is close to the plug-in end (11) and is distributed in an annular interval on the outer periphery of the installation shaft section (13); the arc-shaped elastic portion (14) has a first slope (141) facing the plug-in end (11) and a second slope (142) facing away from the plug-in end (11); the axial length of the first slope (141) is greater than the axial length of the second slope (142), and the angle of the bevel of the first slope (141) is smaller than the angle of the bevel of the second slope (142); and a matching insulating body (2), The insulating body (2) is provided with a terminal hole (21) adapted for implanting and assembling the conductor (1), and the terminal hole (21) is provided with a first step (211) and a second step (212) facing each other; after the conductor (1) is implanted into the terminal hole (21), the first step (211) is used to support and prevent the conductor (1) from falling off with the second slope (142) of the arc-shaped elastic part (14); the second step (212) is used to support and limit the position of the limiting platform (15) to limit the implantation depth of the conductor (1).

2. The terminal that is easy to disassemble and replace according to claim 1, characterized in that: The terminal hole (21) passes through the front and rear ends of the insulating body (2); the conductor (1) is inserted into the terminal hole (21) from the rear end of the insulating body (2) to the front; the plug-in end (11) of the conductor (1) is hidden in the terminal hole (21), while the connection end (12) of the conductor (1) is exposed outside the rear end of the insulating body (2); a widened countersunk hole (22) is provided on the outer periphery of the front end of the terminal hole (21); the widened countersunk hole (22) extends along the axial direction of the terminal hole (21) and ends inside the insulating body (2); the first step (211) is the inner bottom of the widened countersunk hole (22).

3. A terminal that is easy to disassemble and replace according to claim 1 or 2, characterized in that: The conductor (1) is a solid cylindrical body, and a spring clip (3) is sleeved on the outer periphery of the mounting shaft section (13). The arc-shaped elastic portion (14) is a corrugated spring formed by a local protrusion of the spring clip (3).

4. The terminal that is easy to disassemble and replace according to claim 1, characterized in that: The plug-in end (11) of the conductor (1) is provided with an axially concave plug hole (111), and a claw spring (4) is embedded in the plug hole (111).

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