Wire harness with terminal anti-drop function

Abstract

The embodiment of the utility model provides a wire harness with a terminal anti-falling function, and the wire harness comprises a wire which is used for transmitting electric energy or signals; the insulating sleeve is coated outside the wire and provides insulation protection; the terminal is arranged at one end of the wire and is used for being connected with external electrical equipment; the anti-drop lock catch is arranged between the terminal and the insulating sleeve, comprises a buckle structure and is used for preventing the terminal from dropping from the wire harness; the fixing clamp is fixed on the insulating sleeve; wherein the terminal is provided with a groove, the anti-drop lock catch is provided with a bulge, and the bulge and the groove are embedded with each other; the multiple protrusions are distributed in the circumferential direction of the anti-disengaging lock catch, and the heights of the protrusions are gradually reduced to form a gradual embedded structure. Through the scheme of the embodiment of the invention, the problems of failure of the terminal anti-falling structure and falling of the wire harness caused by long-time vibration and temperature change influence can be solved.

Description

Technical Field

[0001] The present application relates to the field of electrical engineering technology, and in particular to a wiring harness with a terminal anti-detachment function. Background Art

[0002] Wiring harnesses with terminal locks are designed to prevent connector terminals from accidentally falling off during use, ensuring a stable and reliable electrical connection. However, these harnesses can encounter some issues in practice. For example, due to prolonged vibration and temperature fluctuations, the terminal locks can fatigue or deform, ultimately causing the lock to fail and causing the harness to fall off, impacting the normal operation of the equipment. Summary of the Invention

[0003] In view of this, an embodiment of the present disclosure provides a wiring harness with a terminal anti-detachment function, which at least partially solves the problems existing in the prior art.

[0004] The present invention provides a wiring harness with a terminal anti-drop function, comprising:

[0005] Wires, used to transmit electrical energy or signals;

[0006] Insulation sleeve, covering the outside of the wire to provide insulation protection;

[0007] A terminal is provided at one end of a wire and is used to connect to an external electrical device;

[0008] An anti-drop lock, provided between the terminal and the insulating sleeve, including a snap structure, is used to prevent the terminal from falling off the wiring harness;

[0009] A fixing clip is fixed on the insulating sleeve;

[0010] The terminal is provided with a groove, and the anti-drop lock is provided with a protrusion, and the protrusion and the groove are embedded in each other;

[0011] There are multiple protrusions distributed in the circumferential direction of the anti-drop lock, and the height of the protrusions gradually decreases to form a progressive interlocking structure.

[0012] Preferably, reinforcing ribs are provided inside the conductor, and the reinforcing ribs are distributed along the length direction of the conductor to increase the mechanical strength of the conductor.

[0013] Preferably, the insulating sleeve comprises an outer layer of high-temperature crack-resistant material and an inner layer of flexible insulating material.

[0014] Preferably, an expansion filler is provided in the insulating sleeve.

[0015] Preferably, a wear-resistant coating is provided in the groove.

[0016] Preferably, the anti-drop lock buckle is formed by splicing two semi-annular structures, and the two semi-annular structures are connected by a buckle.

[0017] Preferably, the fixing clamp comprises two opposite clamping arms, and the fixing clamp is provided with corresponding adjustment holes so as to adjust the tension of the clamping arms through the adjustment holes.

[0018] Preferably, the clamping arm is fixed to the insulating sleeve by means of bolts passing through adjustment holes, and the adjustment holes are arranged in a spiral.

[0019] Preferably, a rubber pad is provided at the end of the clamping arm.

[0020] The embodiment of the present disclosure provides a wiring harness with a terminal anti-detachment function, comprising: a conductor for transmitting electrical energy or signals; an insulating sleeve, covering the outside of the conductor to provide insulation protection; a terminal, arranged at one end of the conductor, for connecting to an external electrical device; an anti-detachment lock, arranged between the terminal and the insulating sleeve, comprising a snap structure for preventing the terminal from falling off from the wiring harness; a fixing clip, fixed to the insulating sleeve; wherein the terminal is provided with a groove, and the anti-detachment lock is provided with a protrusion, and the protrusion and the groove are interlocked; the protrusion is multiple and distributed in the circumferential direction of the anti-detachment lock, and the height of the protrusion gradually decreases to form a progressive interlocking structure. Through the solution of the embodiment of the present disclosure, the problem of failure of the terminal anti-detachment structure and falling off of the wiring harness due to long-term vibration and temperature changes can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the exemplary implementation methods of the embodiments of the present disclosure, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the axial side structure of the insulating sleeve of the present utility model;

[0023] Figure 2 For this utility model Figure 1 Schematic diagram of the cross-sectional structure of the middle insulating sleeve;

[0024] Figure 3 For this utility model Figure 1 Enlarged cross-section of the middle insulating sleeve;

[0025] Figure 4 For this utility model Figure 1 Schematic diagram of the cross section of the middle groove;

[0026] Figure 5 For this utility model Figure 1 Schematic diagram of the cross section of the middle anti-drop lock;

[0027] Figure 6 For this utility model Figure 1 Schematic diagram of the cross section of the middle fixing clamp.

[0028] Figure: 1. Wire; 2. Insulation sleeve; 3. Terminal; 4. Anti-drop lock; 5. Fixing clip; 6. Reinforcement rib; 7. High-temperature crack-resistant material layer; 8. Flexible insulation material layer; 9. Expansion filler; 10. Groove; 11. Protrusion; 12. Wear-resistant coating; 13. Semi-annular structure; 14. Buckle; 15. Clamp arm; 16. Adjustment hole; 17. Bolt; 18. Rubber pad DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure more clear, the embodiments of the present disclosure are further described in detail below in combination with the embodiments and drawings. The schematic implementation methods of the embodiments of the present disclosure and their descriptions are only used to explain the embodiments of the present disclosure and are not intended to limit the embodiments of the present disclosure.

[0030] like Figure 1 As shown in the figure, a wiring harness with terminal anti-disconnection function in the present application includes the following main parts: wire 1, insulation sleeve 2, terminal 3, anti-disconnection lock 4 and fixing clamp 5. These components together ensure the connection reliability of the wiring harness, especially in applications under harsh environments such as long-term vibration and temperature fluctuations.

[0031] The wires 1 in the wiring harness are used to transmit electrical energy or signals. To ensure electrical performance and safety, the wires 1 are typically composed of multiple strands of fine copper wire to increase their flexibility and conductivity. The outer surface of the wires 1 is covered with an insulating sleeve 2, which not only provides the necessary electrical insulation but also protects against external physical damage. The insulating sleeve 2 is typically made of a flexible and weather-resistant material, such as polyvinyl chloride (PVC) or thermoplastic elastomer (TPE).

[0032] Terminal 3 is located at one end of the wiring harness, providing a reliable electrical connection to external electrical equipment. Terminal 3 is typically made of a highly conductive metal (such as copper or brass), and its contact surface is plated with an anti-oxidation material (such as tin or silver) to enhance conductivity and corrosion resistance. Terminal 3 is typically designed as a standard jack or pin, facilitating quick connection to other electrical interfaces.

[0033] The anti-drop lock 4 is arranged between the terminal 3 and the insulating sleeve 2 to prevent the terminal 3 from falling off from the wiring harness during use. The anti-drop lock 4 mainly includes an elastically deformable buckle 14 structure. When the terminal 3 is inserted into the target interface, the buckle 14 is firmly buckled between the terminal 3 and the target interface through its own elastic deformation, thereby increasing the stability of the connection. Specifically, the buckle 14 structure can be designed with a barb. When the terminal 3 is inserted, the barb will cling to the interface wall, forming a physical lock, effectively preventing the terminal 3 from loosening.

[0034] The wiring harness also includes a retaining clip 5, which is mounted on the insulating sleeve 2. The primary function of the retaining clip 5 is to further secure the connection between the terminal 3 and the wire 1 through clamping force, thereby enhancing the mechanical strength and vibration resistance of the entire wiring harness. The retaining clip 5 is typically made of spring steel or a highly elastic plastic material and is designed in a U- or C-shape. It tightly wraps around the insulating sleeve 2 and secures the terminal 3 in a stable position.

[0035] Through the dual protection mechanism of the above-mentioned anti-drop lock 4 and the fixing clamp 5, the wiring harness of the present application can effectively cope with the influence of long-term vibration and temperature changes. First, the anti-drop lock 4 uses its elastic deformation characteristics to form a physical lock when the terminal 3 is inserted, and it can ensure that the terminal 3 will not loosen easily even in a high-frequency vibration environment. Secondly, the fixing clamp 5 maintains the mechanical connection strength between the terminal 3 and the wire 1 through its continuous clamping action, so that stable electrical performance can be maintained at high or low temperatures. Combining these two protective measures, the present application greatly improves the service life and reliability of the wiring harness, and is particularly suitable for fields such as automobiles, industrial equipment, and aerospace. The equipment in these fields often faces harsh working environments and has extremely high requirements for the reliability of the wiring harness.

[0036] In one embodiment, a wiring harness with a terminal anti-detachment function according to the present application includes a wire 1 having reinforcing ribs 6 disposed therein. These ribs 6 are distributed along the length of the wire 1 to enhance its mechanical strength and prevent breakage under conditions of long-term vibration and temperature fluctuations. This structural design effectively extends the life of the wiring harness and ensures its stability and reliability in harsh environments.

[0037] The reinforcing ribs 6 can be made of a high-toughness material, such as metal wire or high-strength fiber. The choice of these materials depends on the specific use environment and application requirements. The reinforcing ribs 6 are evenly distributed inside the wire 1, arranged along the axial direction of the wire 1, and in close contact with the insulation layer of the wire 1. This ensures that consistent support is provided throughout the entire length of the wire 1, thereby enhancing the overall rigidity of the wire 1. In addition, the reinforcing ribs 6 can also be embedded in the wire 1 in a spiral winding manner. This method not only further improves the mechanical strength, but also increases the flexibility of the wire 1, making it less susceptible to damage when bent.

[0038] In practice, the process begins by selecting a suitable high-toughness material for the reinforcing rib 6. Next, the material is processed into a desired shape, such as a strip or spiral. The processed rib 6 is then embedded into the center or outer layer of the conductor 1, ensuring a tight bond with the insulation layer. Finally, the conductor 1, with the embedded rib 6, undergoes final assembly and testing to ensure it meets the expected technical specifications and requirements.

[0039] In one embodiment, Figure 2 As shown, the insulating sleeve 2 of a wiring harness with a terminal-preventing function of the present application is made of a multi-layer composite material. The outer layer is a high-temperature crack-resistant material layer 7, which can effectively prevent cracks in high-temperature environments, thereby ensuring the integrity of the insulating sleeve 2. The inner layer is a flexible insulating material layer 8, which maintains flexibility and good wrapping properties in low-temperature environments, effectively protecting the internal cables from external environmental influences.

[0040] Specifically, the multi-layer composite material design ensures that the outer layer of the insulating sleeve 2 possesses high-temperature resistance, preventing material performance degradation or structural damage due to temperature increases. Simultaneously, the flexible material of the inner layer adapts to contraction and deformation in low-temperature conditions, maintaining good wrapping and softness. For example, high-performance materials such as ceramic fiber and silicone rubber can be used for high-temperature crack-resistant materials, while polyurethane, nitrile rubber, and the like can be used for flexible insulating materials.

[0041] In one embodiment, the outer and inner layers of the insulating sleeve 2 are tightly bonded together through a thermal compression process to form a single unit. Specifically, the high-temperature crack-resistant material on the exterior provides excellent temperature resistance and mechanical strength, while the flexible insulating material on the interior ensures flexibility and electrical insulation. This combination not only enhances the overall performance of the sleeve but also simplifies production and assembly.

[0042] In one embodiment, see Figure 3The insulating sleeve 2 of a wiring harness with a terminal-unplugging prevention function of the present application is provided with an expandable filler 9. The expandable filler 9 is capable of expanding at high temperatures, filling the gaps within the insulating sleeve 2, and further enhancing the sealing performance and mechanical strength of the insulating sleeve 2. The material of the expandable filler 9 is generally selected from a high-temperature resistant, expandable polymer to ensure that it can effectively expand and fill any tiny gaps in a high-temperature environment.

[0043] In one embodiment, the expansion filler 9 can be placed within the insulating sleeve 2 by pre-placing the filler on the inner wall of the insulating sleeve 2 or by directly mixing it into the material of the insulating sleeve 2 and molding it during the production process. This ensures that when the wiring harness is exposed to high temperatures, the expansion filler 9 can quickly respond, expanding and filling any gaps that may arise. Specifically, the expansion filler 9 can be fixed to the inner wall of the insulating sleeve 2 using an adhesive or directly embedded within the insulating sleeve 2 through an injection molding process, thereby forming an integrated structure. For example, a polyolefin-based expansion material can be used, and its expansion characteristics can be adjusted by controlling the production process parameters to meet the needs of specific applications.

[0044] In one embodiment, Figure 4 As shown, a wiring harness with a terminal anti-drop function of the present application involves a design of a terminal 3 and an anti-drop lock 4 to improve its anti-drop performance in a vibration and temperature change environment. A groove 10 is provided on the terminal 3, and a protrusion 11 is provided on the anti-drop lock 4. The protrusion 11 and the groove 10 are interlocked with each other, thereby ensuring that the terminal 3 is not easy to fall off in a long-term vibration and temperature change environment. A wear-resistant coating 12 is also provided inside the groove 10. The nano-ceramic material is used. This coating has high hardness and low friction coefficient, which can effectively prevent wear and loosening caused by long-term vibration and temperature changes.

[0045] In one embodiment, protrusions 11 are distributed circumferentially around the anti-dropout latch 4, forming multiple progressively interlocking structures. This design not only enhances the anti-dropout effect but also facilitates installation and removal. Specifically, the height of these protrusions 11 gradually decreases, allowing them to gradually fit into the groove 10 during insertion of the terminal 3, avoiding excessive resistance and damage.

[0046] For example, in actual application, the wear-resistant coating 12 can be sprayed or coated in the groove 10 first, and then the terminal 3 is installed on the wiring harness connector. Finally, the anti-drop lock 4 with the protrusion 11 is pressed into the terminal 3 to complete the installation process. This design is not only simple and efficient, but also reliable and durable.

[0047] In one embodiment, Figure 5As shown, the anti-detachment lock 4 of a wiring harness with a terminal anti-detachment function of the present application is composed of two semi-annular structures 13 spliced ​​together. The two semi-annular structures 13 are connected by a buckle 14, so that the anti-detachment lock 4 can be easily opened and closed. Specifically, each semi-annular structure 13 is designed to have the same shape and size to ensure that they can fit tightly when connected to form a complete circular or oval lock. When the terminal 3 needs to be inserted or pulled out, the user can easily unfasten the buckle 14, open the anti-detachment lock 4, and then close it and re-fasten the buckle 14 to ensure that the terminal 3 remains firmly fixed during transmission. The design of the buckle 14 not only simplifies the installation and disassembly process, but also improves the adaptability and flexibility of the wiring harness in various application scenarios.

[0048] In one embodiment, the semi-annular structure 13 can be manufactured by injection molding or other methods. A buckle 14 and a slot are then provided at each end of one semi-annular structure 13, and a matching buckle 14 or slot is provided at the corresponding position of the semi-annular structure 13 on the other side. Thus, when the two semi-annular structures 13 are aligned, the buckle 14 and the slot engage with each other, ensuring the stability and reliability of the anti-drop lock 4. Furthermore, the buckle 14 should be designed to provide sufficient elasticity and strength to withstand multiple opening and closing operations. For example, the buckle 14 can be made of a plastic material with good elasticity so that it can maintain good mechanical properties after repeated opening and closing.

[0049] In one embodiment, Figure 6 As shown, a wiring harness retaining clamp 5 with a terminal anti-dropout function according to the present application includes two opposing clamping arms 15. The retaining clamp 5 is provided with corresponding adjustment holes 16, through which the tension of the clamping arms 15 can be adjusted to ensure the stability of the terminal 3 under different vibration environments. The clamping arms 15 are fixed to the insulating sleeve 2 via bolts 17. The adjustment holes 16 are arranged in a spiral pattern, allowing the tension of the clamping arms 15 to be precisely adjusted, thereby preventing failure due to overtightening or loosening.

[0050] In one embodiment, the end of the clamp arm 15 of the fixing clamp 5 of the present application is provided with a rubber pad 18. This rubber pad 18 increases friction with the insulating sleeve 2, preventing the clamp arm 15 from loosening under prolonged vibration and temperature fluctuations. This design ensures that the terminal 3 maintains a secure connection even in harsh environments, ensuring the reliability and safety of the circuit.

[0051] Specifically, by adjusting the adjustment hole 16 on the fixing clamp 5, the tension of the clamp arm 15 can be precisely adjusted according to actual needs. For example, in an environment with high vibration, the clamp arm 15 can be tightened, while in an environment with low vibration, it can be loosened appropriately. This ensures the stability of the wiring harness while preventing damage caused by overtightening. Furthermore, the design of the rubber pad 18 enhances the friction between the clamp arm 15 and the insulating sleeve 2, further improving the wiring harness's ability to prevent loosening under complex working conditions.

[0052] During actual operation, when this device is in use, wire 1 transmits electrical energy or signals. An insulating sleeve 2 wraps around wire 1, ensuring insulation during transmission and preventing leakage or short circuits caused by external factors. Terminal 3 is installed at one end of wire 1 for connection to external electrical equipment, enabling effective transmission of electrical signals. An anti-drop lock 4, located between terminal 3 and insulating sleeve 2, utilizes an elastically deformable snap 14. This snap 14 securely holds terminal 3 in place, preventing it from accidentally falling off due to external vibration or other mechanical forces. Simultaneously, a retaining clip 5 is securely fastened to insulating sleeve 2, further securing and stabilizing terminal 3 through its clamping force. The synergistic effect between anti-drop lock 4 and retaining clip 5 is particularly important when the system is exposed to harsh environments such as long-term vibration and temperature fluctuations. The anti-drop lock 4 provides immediate clamping force, ensuring that terminal 3 does not become loose, while the retaining clip 5 provides additional physical support, ensuring a more robust connection. This dual protection mechanism greatly enhances the reliability of the wiring harness in complex environments and effectively prevents system failures caused by the loss of terminal 3. Therefore, this wiring harness design not only improves connection security but also extends the service life of the system, providing strong support for a variety of demanding application scenarios.

[0053] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of this application.

Claims

1. A wiring harness with a terminal anti-drop function, characterized in that: include: Wire (1), used for transmitting electrical energy or signals; An insulating sleeve (2) is wrapped around the outside of the wire (1) to provide insulation protection; A terminal (3) is provided at one end of the wire (1) and is used for connecting to an external electrical device; An anti-drop lock buckle (4) is provided between the terminal (3) and the insulating sleeve (2), and includes a snap-fit ​​structure for preventing the terminal (3) from falling off from the wiring harness; A fixing clip (5) is fixed on the insulating sleeve (2); wherein The terminal (3) is provided with a groove (10), and the anti-drop lock (4) is provided with a protrusion (11), and the protrusion (11) and the groove (10) are interlocked; There are multiple protrusions (11) distributed in the circumferential direction of the anti-drop lock buckle (4), and the height of the protrusions (11) gradually decreases to form a progressive interlocking structure.

2. The wiring harness with terminal anti-detachment function according to claim 1, characterized in that: Reinforcing ribs (6) are provided inside the conductor (1), and the reinforcing ribs (6) are distributed along the length direction of the conductor (1) and are used to increase the mechanical strength of the conductor (1).

3. The wiring harness with terminal anti-detachment function according to claim 1, characterized in that: The insulating sleeve (2) comprises an outer high-temperature crack-resistant material layer (7) and an inner flexible insulating material layer (8).

4. The wiring harness with terminal anti-detachment function according to claim 3, characterized in that: An expansion filler (9) is provided in the insulating sleeve (2).

5. The wiring harness with terminal anti-detachment function according to claim 1, characterized in that: A wear-resistant coating (12) is provided in the groove (10).

6. The wiring harness with terminal anti-detachment function according to claim 1, characterized in that: The anti-drop lock buckle (4) is formed by splicing two semi-annular structures (13), and the two semi-annular structures (13) are connected via a buckle (14).

7. The wiring harness with terminal anti-detachment function according to claim 1, characterized in that: The fixing clamp (5) comprises two opposite clamp arms (15), and corresponding adjustment holes (16) are provided on the fixing clamp (5) so as to adjust the tension of the clamp arms (15) through the adjustment holes (16).

8. The wiring harness with terminal anti-detachment function according to claim 7, characterized in that: The clamping arm (15) is fixed to the insulating sleeve (2) by means of a bolt (17) passing through an adjustment hole (16), and the adjustment holes (16) are arranged in a spiral.

9. The wiring harness with terminal anti-detachment function according to claim 7, characterized in that: A rubber pad (18) is provided at the end of the clamping arm (15).

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