Insulated superfine bare copper stranded wire for new energy automobile horn and stranded wire terminal

Abstract

The invention relates to the technical field of wires and cables, and discloses an insulating superfine bare copper stranded wire and stranded wire terminal for a new energy automobile horn, which comprises a stranded wire main body, the stranded wire main body takes an enameled wire as a center, a stranded cotton silk thread is arranged on the outer side of the enameled wire, and a conductive rubber layer is arranged on the outer side of the stranded cotton silk thread. The nanocrystalline alloy belt is embedded in the conductive rubber layer and wraps the twisted cotton silk threads through the spiral winding technology, the annular elastic sheath is arranged on the outer side of the conductive rubber layer in a sleeving mode, and the outer coating layer is arranged on the outer side of the annular elastic sheath and the outer side of the conductive rubber layer in a sleeving mode. A miniature memory alloy spring is embedded in a gap between the annular elastic sheath and the outer coating layer, and one end of the stranded wire body is fixedly connected with a connector. According to the invention, through the combined action of multiple layers of structures such as the twisted cotton silk threads, the nanocrystalline alloy belt, the conductive rubber layer, the annular elastic sheath and the outer coating layer, stable audio signal transmission is realized, and long-term reliable operation under complex working conditions of an automobile is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of wires and cables, and in particular to an insulated ultra-fine bare copper stranded wire and a stranded wire terminal for a new energy vehicle horn. Background Art

[0002] In automotive electrical systems, signal transmission and electrical connections rely on stranded wire and stranded wire terminals. Traditional insulated bare copper stranded wire used in new energy vehicle speakers mostly consists of ordinary copper wire as the conductor, with a basic plastic insulation layer wrapped around the outer layer, which can only meet basic conductivity and insulation functions. This type of stranded wire has poor flexibility and is difficult to handle the continuous vibration during vehicle driving, and is prone to problems such as conductor breakage and insulation layer damage. At the same time, it lacks an effective electromagnetic shielding structure. Electromagnetic interference generated by the vehicle's high-voltage system and motor can seriously affect the quality of audio signal transmission, causing abnormal speaker sound. Traditional stranded wire terminals mostly use simple plug-in or screw-fastening connections, which are cumbersome to install and are prone to loosening in vibrating environments. There are hidden dangers such as unstable electrical connections and increased contact resistance. This not only increases installation and maintenance costs, but also may cause safety issues.

[0003] Although traditional twisted wire and terminals have played a role in automotive electrical connections, their drawbacks are becoming increasingly prominent as new energy vehicle technology continues to innovate. With the increasing complexity of new energy vehicle power systems, the electromagnetic environment inside vehicles has become even more severe. Traditional twisted wire, lacking a multi-layer coordinated shielding structure and anti-vibration design, is unable to withstand high-frequency electromagnetic interference and mechanical vibration, making it difficult to ensure stable transmission of audio signals. Traditional twisted wire and terminal connection methods cannot achieve fast and precise docking, and long-term vibration can easily lead to connection failure, failing to meet the high reliability and easy maintenance requirements of automotive electrical systems. Therefore, the development of new twisted wire and terminals with multi-layer protection and efficient connection capabilities has become key to improving the performance of new energy vehicle electrical systems.

[0004] To address the above problems, an insulated ultra-fine bare copper stranded wire and a stranded wire terminal for new energy vehicle horns are proposed to solve the above problems. Summary of the Invention

[0005] In order to make up for the above shortcomings, the present invention provides an insulated ultra-fine bare copper stranded wire and stranded wire terminal for new energy vehicle horns, aiming to improve the problems in the existing technology of existing stranded wires and terminals for new energy vehicle horns, such as poor vibration resistance, poor shielding, low connection efficiency and insufficient stability.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An insulated, ultra-fine bare copper stranded wire for new energy vehicle horns comprises a stranded wire body, the stranded wire body being centered around an enameled wire, a stranded cotton thread disposed on the outside of the enameled wire, a conductive rubber layer disposed on the outside of the stranded cotton thread, a nanocrystalline alloy strip embedded within the conductive rubber layer, and the nanocrystalline alloy strip wrapped around the outside of the stranded cotton thread via a spiral winding process, an annular elastic sheath disposed on the outside of the conductive rubber layer, an outer cladding layer disposed between the annular elastic sheath and the outer cladding layer, a micro memory alloy spring embedded in the gap between the annular elastic sheath and the outer cladding layer, and a connector fixedly connected to one end of the stranded wire body.

[0008] As a further description of the above technical solution:

[0009] The enameled wire, twisted cotton wire, nanocrystalline alloy strip, conductive rubber layer, annular elastic sheath, and outer layer are coaxially arranged in sequence from the inside to the outside, and each layer is connected by an adapted wrapping, twisting, or sleeve process;

[0010] As a further description of the above technical solution:

[0011] The twisted cotton yarn is made of 7 single strands of yarn twisted together by twisting 49 strands of insulated, very fine bare copper wire;

[0012] As a further description of the above technical solution:

[0013] The annular elastic sheath is nested in the "twisted contact area" of the twisted cotton threads;

[0014] A stranded wire terminal adapted for the aforementioned insulated, very fine bare copper stranded wire for use in new energy vehicle horns, comprising a terminal body, the terminal body comprising a base, an outer shell provided on the outside of the base, an insulating pad mounted on the inside of the outer shell, a trigger member provided inside the outer shell, locking members provided at both the upper and lower ends of the trigger member, a locking member provided at the adjacent end of the locking member, an external interface provided on the top of the base, and a connector for connecting the insulated, very fine bare copper stranded wire to the terminal body;

[0015] As a further description of the above technical solution:

[0016] The trigger member includes a contact column, a return spring and a follower plate. The contact column is provided in the outer shell. One end of the return spring abuts against the inner wall of the outer shell, and the other end of the return spring is connected to the contact column. The two follower plates are respectively fixedly connected to the upper and lower sides of the contact column.

[0017] As a further description of the above technical solution:

[0018] The locking member includes a horizontal clamping column, a vertical clamping column, a touch plate and a compression spring. The horizontal clamping column is fixedly connected to the follower plate, and the vertical clamping column is slidably connected to the inside of the outer shell. The outer sides of the vertical clamping column and the horizontal clamping column are both provided with a clamping groove. The far ends of the two sets of vertical clamping columns are fixedly connected to the touch plate, and a compression spring is provided between the touch plate and the outer shell. The compression spring is sleeved on the outer side of the vertical clamping column.

[0019] As a further description of the above technical solution:

[0020] The clamping member includes an elastic clamping ring, an L-shaped metal spring, a docking seat and a slot. The elastic clamping ring is fixedly connected to the other end of the vertical clamping column, the L-shaped metal spring is fixedly installed on the inner side of the elastic clamping ring, and the docking seat is correspondingly arranged on the connecting head. The docking seat has a slot inside, and the slot is adapted to the L-shaped metal spring.

[0021] As a further description of the above technical solution:

[0022] The elastic clamping ring can realize radial contraction or expansion under the drive of the vertical clamping column, and the L-shaped metal spring moves with the elastic clamping ring to engage or separate with the docking seat and the clamping groove on the connector.

[0023] The present invention has the following beneficial effects:

[0024] 1. In this invention, the insulated ultra-fine stranded bare copper wire, with enameled wire as the core, is encased in a multi-layered structure consisting of twisted cotton thread, nanocrystalline alloy ribbon, conductive rubber layer, annular elastic sheath, and outer cladding, all in a synergistic manner with a micro-memory alloy spring. The twisted cotton thread imparts flexibility and fatigue resistance; the nanocrystalline alloy ribbon and conductive rubber layer form a dual electromagnetic shield, effectively attenuating high-frequency interference; the annular elastic sheath and memory alloy spring enhance vibration resistance, protecting against vehicle vibrations; and the outer cladding provides insulation against complex environmental corrosion. This multi-layered structure works together to achieve stable audio signal transmission, ensuring long-term, reliable operation under complex automotive operating conditions.

[0025] 2. In the present invention, the stranded wire terminal realizes efficient connection through the precise linkage design of the trigger, locking part and locking part. When the connector squeezes the contact column, the reset spring is triggered to compress, driving the follower plate and the horizontal clamping column to move, so that the horizontal and vertical clamping column clamping grooves correspond, and then triggering the compression spring to push the vertical clamping column to close, driving the elastic clamping ring and L-shaped metal spring to snap into the docking seat slot to complete a stable connection. During disassembly, the touch plate opens to drive the vertical clamping column to separate, realizing quick unlocking. This structure realizes the fast and reliable connection and convenient disassembly of the stranded wire and the terminal, significantly improves the installation efficiency and maintenance convenience, and ensures the long-term stability of the electrical connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic diagram of the assembly of an insulated ultra-fine bare copper stranded wire and stranded wire terminal for a new energy vehicle horn proposed by the present invention;

[0027] Figure 2 This is a schematic structural diagram of the stranded wire body of an insulated ultra-fine bare copper stranded wire for new energy vehicle horns proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of a twisted cotton wire of an insulated ultra-fine bare copper stranded wire for a new energy vehicle horn proposed by the present invention;

[0029] Figure 4 This is a cross-sectional schematic diagram of an insulated ultra-fine bare copper stranded wire for new energy vehicle speakers proposed by the present invention;

[0030] Figure 5 This is a three-dimensional schematic diagram of an insulated ultra-fine bare copper stranded wire terminal for a new energy vehicle horn proposed by the present invention;

[0031] Figure 6 This is a schematic structural diagram of a trigger component of an insulated ultra-fine bare copper stranded wire terminal for a new energy vehicle horn proposed by the present invention;

[0032] Figure 7 This is a schematic structural diagram of a locking member of an insulated ultra-fine bare copper stranded wire terminal for a new energy vehicle horn proposed by the present invention;

[0033] Figure 8 This is a schematic structural diagram of a connector for an insulated ultra-fine bare copper stranded wire and a stranded wire terminal for use with a new energy vehicle horn, as proposed by the present invention;

[0034] Figure 9 for Figure 8 Enlarged view of point A in the middle.

[0035] Legend:

[0036] 1. Stranded wire body; 101. Enameled wire; 102. Twisted cotton thread; 103. Conductive rubber layer; 104. Nanocrystalline alloy strip; 105. Annular elastic sheath; 106. Outer layer; 107. Micro memory alloy spring; 2. Connector; 3. Terminal body; 31. Base; 32. Outer shell; 33. Insulating pad; 34. Trigger; 341. Contact post; 342. Return spring; 343. Follow-up plate; 35. Locking part; 351. Horizontal clamping post; 352. Vertical clamping post; 353. Touch plate; 354. Compression spring; 36. Clamping part; 361. Elastic snap ring; 362. L-shaped metal spring; 363. Docking seat; 364. Card slot; 37. External interface. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] Example 1: Reference Figures 1 to 4 An insulated ultra-fine bare copper stranded wire for new energy vehicle horns includes a stranded wire body 1, with an enameled wire 101 as the center. The enameled wire 101 is made of high-purity oxygen-free copper. The insulating varnish coated on the surface achieves electrical isolation and provides a support foundation for the outer structure, serving as the core conductor for signal transmission; a stranded cotton wire 102 is twisted and wrapped around the outside of the enameled wire 101. The stranded cotton wire 102 is composed of 7 single strands of 49 insulated ultra-fine bare copper strands. The multi-strand twisting design gives the stranded wire flexibility and fatigue resistance. The conductive rubber layer 103 is arranged on the outside of the twisted cotton wire 102, and the nanocrystalline alloy strip 104 is embedded in the conductive rubber layer 103. The nanocrystalline alloy strip 104 is wrapped around the outside of the twisted cotton wire through a spiral winding process. The nanocrystalline alloy strip 104 uses high magnetic permeability to absorb high-frequency electromagnetic waves generated by the high-voltage system and motor of the car, thereby weakening electromagnetic interference. The conductive rubber layer 103 is composed of a silicone rubber matrix filled with silver powder, which fills the winding gap of the nanocrystalline alloy strip 104 to form a continuous The electromagnetic shielding layer is continued, and at the same time, the flexibility and temperature resistance of silicone rubber are used to isolate water vapor and dust to achieve insulation and preliminary protection; the annular elastic sheath 105 is set on the outside of the conductive rubber layer 103, and the annular elastic sheath 105 is nested in the "twisted contact area" of the twisted cotton thread 102. It absorbs and buffers external forces through elastic deformation, prevents the twisted monofilament from breaking due to vibration, and improves the vibration resistance of the twisted wire; the outer layer 106 is wrapped around the annular elastic sheath 105 and the outside of the conductive rubber layer 103, and uses weather-resistant materials to resist high temperature and oil pollution inside the car. , ultraviolet rays and other complex environmental erosion, providing the outermost layer of protection for the stranded wire; the micro-memory alloy spring 107 is embedded in the gap between the annular elastic sheath 105 and the outer layer 106, and uses the shape memory effect and superelasticity of the memory alloy to assist the annular elastic sheath 105 in resetting, thereby enhancing the stranded wire's ability to resist deformation and adapt to temperature changes and external forces; one end of the stranded wire body 1 is fixedly connected to a connector 2, the material of which matches the stranded cotton wire 102, and electrical conductivity is ensured by a fusion welding process, providing an interface for connecting the stranded wire to the terminal;

[0039] The enameled wire 101, twisted cotton thread 102, nanocrystalline alloy strip 104, conductive rubber layer 103, annular elastic sheath 105, and outer layer 106 are coaxially arranged from the inside to the outside, and each layer is connected by an adapted wrapping, twisting or sleeve process to form a multi-layer coordinated system of "conductivity-shielding-vibration resistance-protection".

[0040] Example 2: Reference Figures 5 to 9 , a stranded wire terminal adapted for the above-mentioned insulated ultra-fine bare copper stranded wire for the new energy vehicle horn, comprising a terminal body 3, the terminal body 3 including a base 31, the base 31 serving as the mounting base of the terminal body 3, providing stable support for the entire structure; an outer shell 32 is provided on the outside of the base 31, the outer shell 32 wraps the outer side of the base 31, providing mechanical support and protection for the internal trigger 34, locking member 35, etc., and forming a guide structure for the insertion of the connector 2; an insulating pad 33 is installed on the inner side of the outer shell 32, isolating the electrical connection between the base 31 and the outer shell 32, avoiding short circuit and improving the insulation performance of the terminal; a trigger 34 is provided inside the outer shell 32, and locking members 35 are provided at the upper and lower ends of the trigger 34, and a snap-fit ​​member 36 is provided at the adjacent end of the locking member 35, and an external interface 37 is provided on the top of the base 31, which is used for electrical connection of the terminal body 3 with the car horn or other external circuit systems to realize signal transmission; the connector 2 is used to connect the insulated ultra-fine bare copper stranded wire to the terminal body 3;

[0041] The trigger member 34 includes a contact post 341, a return spring 342, and a follower plate 343. The contact post 341 is inserted into the outer shell 32. When the connector 2 is inserted, it is squeezed and the return spring 342 is compressed, thereby driving the follower plate 343 to move. One end of the return spring 342 abuts the inner wall of the outer shell 32, and the other end is connected to the contact post 341. When the contact post 341 is squeezed, it stores elastic potential energy and pushes the contact post 341 back to its original position when the external force disappears. The two follower plates 343 are fixedly connected to the upper and lower sides of the contact post 341, and move with the movement of the contact post 341, driving the horizontal clamping post 351 to move.

[0042] The locking member 35 comprises a horizontal clamping post 351, a vertical clamping post 352, a touch plate 353 and a compression spring 354. The horizontal clamping post 351 is fixedly connected to the follower plate 343. As the follower plate 343 moves, its own clamping groove corresponds to the clamping groove of the vertical clamping post 352; the vertical clamping post 352 is slidably connected to the interior of the outer shell 32, and the outer sides of the vertical clamping post 352 and the horizontal clamping post 351 are both provided with a clamping groove. The far ends of the two groups of vertical clamping posts 352 are fixedly connected to the touch plate 353. A compression spring 354 is provided between the touch plate 353 and the outer shell 32. The compression spring 354 is sleeved on the outer side of the vertical clamping post 352. When the clamping grooves of the horizontal and vertical clamping posts 352 correspond to each other, the compression spring 354 pushes the vertical clamping post 352 to close and lock. When the touch plate 353 is operated, the vertical clamping post 352 is separated and unlocked.

[0043] The engaging member 36 includes an elastic snap ring 361, an L-shaped metal spring 362, a docking seat 363, and a slot 364. The elastic snap ring 361 is fixedly connected to the other end of the vertical clamping column 352 and radially contracts or expands as the vertical clamping column 352 closes or separates. The L-shaped metal spring 362 is fixedly mounted on the inner side of the elastic snap ring 361 and engages or disengages from the slot 364 of the docking seat 363 as the elastic snap ring 361 moves. The docking seat 363 is correspondingly provided on the connector 2, and a slot 364 is formed inside the docking seat 363. The slot 364 is adapted to the L-shaped metal spring 362 to achieve mechanical and electrical connection and fixation between the stranded wire and the terminal.

[0044] Driven by the vertical clamping column 352, the elastic clamping ring 361 can realize radial contraction or expansion. The L-shaped metal spring 362 moves with the elastic clamping ring 361, and adapts to the docking seat 363 and the clamping groove 364 on the connector 2 to engage or separate, realizing quick plugging and unplugging and reliable locking through the "trigger-lock-engagement" linkage mechanism.

[0045] Working Principle: This insulated, ultra-fine bare copper stranded wire for new energy vehicle speakers features enameled wire 101 as its core. The insulating varnish on its surface provides electrical isolation and foundational support. 49 bare copper strands are twisted into 7 strands, which are then twisted again into stranded cotton wire 102, tightly wrapped around enameled wire 101. Precisely controlled stranding tension ensures uniform strand alignment, imparting flexibility and fatigue resistance to the stranded wire, dissipating vehicle vibration and providing mechanical strength.

[0046] A nanocrystalline alloy ribbon 104 is spirally wrapped around the outside of the twisted cotton thread 102, using its high magnetic permeability to absorb high-frequency electromagnetic waves generated by the vehicle's high-voltage system and motor, thereby reducing electromagnetic interference. A conductive rubber layer 103 is used to cover the gaps in the nanocrystalline alloy ribbon 104, leveraging the flexibility and temperature resistance of silicone rubber and the conductivity of silver powder to achieve continuous electromagnetic shielding, while also isolating water vapor and dust, achieving insulation and preliminary protection.

[0047] An annular elastic sheath 105 is nested within the stress concentration area of ​​the twisted cotton yarn 102. It absorbs and cushions external forces through elastic deformation, preventing single-filament breakage and improving the yarn's vibration resistance. Wrapped around the outside is an outer sheath 106, made of weather-resistant material to withstand the complex automotive environment. Micro-memory alloy springs 107 are embedded in the gaps, leveraging their shape memory effect and superelasticity to assist in resetting the sheath and enhance its resistance to deformation.

[0048] Each layer is coaxially connected through twisting, winding, extrusion and other processes, and a connector 2 is welded at one end of the twisted wire to ensure electrical conductivity, ultimately forming a complete structure that can stably transmit audio signals, withstand complex working conditions of the car, and adapt to the needs of new energy vehicle speakers.

[0049] When connecting an insulated, ultra-fine stranded copper wire to the terminal body 3, first align the stranded wire connector 2 with the corresponding interface on the terminal body 3. At this point, the connector 2 contacts the contact post 341 of the trigger member 34. Under the action of the horizontal insertion force, the connector 2 presses the contact post 341 backward. This compression compresses the return spring 342 connected to it, simultaneously causing the follower plates 343 on either side of the contact post 341 to move backward. As the follower plates 343 move, they also move the horizontal clip posts 351 fixed to them, gradually aligning the clip grooves on the horizontal clip posts 351 with the clip grooves on the vertical clip posts 352. Once the clip grooves align, the previously compressed compression spring 354 begins to recover, pushing the vertical clip posts 352 toward the center. As the vertical clip posts 352 move, they also cause the elastic snap ring 361, fixed to their other ends, to close toward the center. Under the continuous action of this horizontal insertion, the L-shaped metal spring 362 on the inner side of the elastic clamp 361 moves with the elastic clamp 361 and is accurately snapped into the corresponding docking seat 363 on the connector 2, and the L-shaped metal spring 362 is adapted to engage with the slot 364 opened inside the docking seat 363 to complete the snap-fit ​​fixation of the stranded wire and the terminal body 3.

[0050] If you need to pull out the cable, operate the touch plate 353 to open the two contact plates 353, and the touch plate 353 drives the vertical clamping column 352 to move to both sides, and the elastic clamping ring 361 opens accordingly, and the L-shaped metal spring 362 separates from the docking seat 363 and the clamping groove 364. At the same time, the horizontal clamping column 351 moves in the opposite direction, and the contact column 341 is reset under the restoring force of the reset spring 342, and the stranded wire can be pulled out from the terminal body 3.

[0051] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An insulated ultra-fine bare copper stranded wire for a new energy vehicle horn, comprising a stranded wire body (1), characterized in that: The stranded wire body (1) is centered on the enameled wire (101); a twisted cotton thread (102) is arranged on the outside of the enameled wire (101); a conductive rubber layer (103) is arranged on the outside of the twisted cotton thread (102); a nanocrystalline alloy strip (104) is embedded in the conductive rubber layer (103); and the nanocrystalline alloy strip (104) is wrapped around the outside of the twisted cotton thread (102) through a spiral winding process; an annular elastic sheath (105) is sleeved on the outside of the conductive rubber layer (103); an outer layer (106) is sleeved on the outside of the annular elastic sheath (105) and the conductive rubber layer (103); a micro memory alloy spring (107) is embedded in the gap between the annular elastic sheath (105) and the outer layer (106); and one end of the stranded wire body (1) is fixedly connected to a connector (2).

2. The insulated ultra-fine bare copper stranded wire for new energy vehicle horns according to claim 1, characterized in that: The enameled wire (101), twisted cotton thread (102), nanocrystalline alloy strip (104), conductive rubber layer (103), annular elastic sheath (105), and outer layer (106) are coaxially arranged in sequence from the inside to the outside, and each layer is connected by an adapted wrapping, twisting, or sleeve connection process.

3. The insulated ultra-fine bare copper stranded wire for new energy vehicle horn according to claim 1, characterized in that: The twisted cotton thread (102) is formed by twisting 7 monofilaments formed by twisting 49 strands of insulated extremely fine bare copper strands.

4. The insulated ultra-fine bare copper stranded wire for new energy vehicle horn according to claim 1, characterized in that: The annular elastic sheath (105) is nested in the "twisted contact area" of the twisted cotton thread (102).

5. A stranded wire terminal adapted for an insulated ultra-fine bare copper stranded wire for a new energy vehicle horn according to any one of claims 1 to 4, comprising a terminal body (3), characterized in that: The terminal body (3) includes a base (31), an outer shell (32) is provided on the outer side of the base (31), an insulating pad (33) is installed on the inner side of the outer shell (32), a trigger (34) is provided inside the outer shell (32), a locking member (35) is provided at both the upper and lower ends of the trigger (34), a locking member (36) is provided at the adjacent end of the locking member (35), an external interface (37) is provided on the top of the base (31), and a connector (2) is used to connect the insulated ultra-fine bare copper stranded wire to the terminal body (3).

6. The stranded wire terminal of the insulated ultra-fine bare copper stranded wire for the new energy vehicle horn according to claim 5, characterized in that: The trigger member (34) comprises a contact column (341), a return spring (342) and a follower plate (343). The contact column (341) is provided in the outer shell (32). One end of the return spring (342) abuts against the inner wall of the outer shell (32), and the other end of the return spring (342) is connected to the contact column (341). The two follower plates (343) are respectively fixedly connected to the upper and lower sides of the contact column (341).

7. The stranded wire terminal of the insulated ultra-fine bare copper stranded wire for the new energy vehicle horn according to claim 6, characterized in that: The locking member (35) comprises a horizontal clamping column (351), a vertical clamping column (352), a touch plate (353) and a compression spring (354). The horizontal clamping column (351) is fixedly connected to the follower plate (343). The vertical clamping column (352) is slidably connected to the interior of the outer shell (32). The outer sides of the vertical clamping column (352) and the horizontal clamping column (351) are both provided with clamping grooves. The far ends of the two groups of vertical clamping columns (352) are both fixedly connected to the touch plate (353). A compression spring (354) is provided between the touch plate (353) and the outer shell (32). The compression spring (354) is sleeved on the outer side of the vertical clamping column (352).

8. The stranded wire terminal of the insulated ultra-fine bare copper stranded wire for the new energy vehicle horn according to claim 7, characterized in that: The engaging member (36) comprises an elastic snap ring (361), an L-shaped metal spring (362), a docking seat (363) and a slot (364). The elastic snap ring (361) is fixedly connected to the other end of the vertical clamping column (352). The L-shaped metal spring (362) is fixedly installed on the inner side of the elastic snap ring (361). The docking seat (363) is correspondingly arranged on the connector (2). A slot (364) is provided inside the docking seat (363). The slot (364) is adapted to fit the L-shaped metal spring (362).

9. The stranded wire terminal of the insulated ultra-fine bare copper stranded wire for the new energy vehicle horn according to claim 8, characterized in that: The elastic snap ring (361) can realize radial contraction or expansion under the drive of the vertical snap-connecting column (352), and the L-shaped metal spring (362) moves with the elastic snap ring (361) to engage or disengage with the docking seat (363) and the snap groove (364) on the connector (2).

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