Wire harness integrated anti-vibration locking structure and connector applying same

Abstract

The utility model discloses a kind of harness integrated anti-vibration locking structure and the connector applied to it.The anti-vibration locking structure of the connector includes: at least one tail cover and the base detachably connected tail cover rear end;The edge of the wire hole of tail cover is integrally connected with the cantilever elastic tooth of several circumferential arrays, the outside of cantilever end of elastic tooth is equipped with toothed claw, the first guide inclined plane that the outside surface of claw forms is inwardly inclined, and harness gap is worn through wire hole and forms preassembly component;Preassembly component is pressed into the high-pressure pipe hole of base along assembly direction, the first guide inclined plane slides along the second guide inclined plane of high-pressure pipe hole, and the second guide inclined plane radially extrudes all claw to move inwardly to make elastic tooth inwardly elastically bent deformation, and the oblique locking surface and the conical wire locking hole formed are engaged and resist tightly harness.The utility model has harness locking reliable firm, high anti-vibration performance, few parts, assembly simplification speed-up, the effect of cost reduction.

Description

Technical Field

[0001] This utility model relates to the field of wire harness fixing technology, and in particular to an integrated anti-vibration locking structure for wire harnesses and a connector using the same. Background Technology

[0002] Wire harnesses are crucial components in electrical connections. The ends of wire harnesses typically require tail attachments for locking and securing. When used in connectors or device ports, traditional wire harness tail attachments usually require multiple independent parts (such as clamps, screws, clips, sealing rings, and individual locking components) to clamp and secure the wire harness. This approach has several drawbacks: firstly, the large number of parts and assembly steps in these attachments leads to low assembly efficiency and high overall cost; secondly, in vibrating environments (such as automotive, aerospace, and industrial equipment), wire harnesses are prone to shifting, wear, or even detachment due to insecure fixing or structural loosening, resulting in unstable signal transmission or connection failure. Traditional wire harness tail attachments are ill-suited to meet the requirements of vibrating environments. Utility Model Content

[0003] To address one or more of the aforementioned problems, this utility model provides an integrated anti-vibration locking structure for wire harnesses and a connector using the same.

[0004] According to one aspect of the present invention, the integrated anti-vibration locking structure for a wire harness includes: at least one tail cap and a base detachably connected to the rear end of the tail cap;

[0005] The tail cap includes at least one wire passage hole. The edge of the wire passage hole is integrally connected with several cantilevered spring teeth arranged in a circular array. The inner side of the spring teeth is a locking surface. Several locking surfaces surround and form an elastically deformable locking hole. The outer side of the cantilever end of the spring teeth is provided with a toothed claw. The outer side of the claw forms an inwardly inclined first guide slope. The wire harness gap passes through the wire passage hole and the locking hole to form a pre-assembled component.

[0006] The base includes at least one high-pressure pipe hole, and the port of the high-pressure pipe hole is provided with a second guide slope that is inclined in the same way as the first guide slope.

[0007] The pre-assembled components are pressed into the high-pressure pipe hole along the assembly direction. The first guide slope slides along the second guide slope. The second guide slope radially squeezes all the claws to move inward, causing the spring teeth to bend and deform inward elastically, forming an inclined locking surface that bites and abuts the outer sheath of the wire harness and a conical locking hole, thereby firmly clamping the wire harness.

[0008] In some embodiments, the edge of the wire hole is also integrally connected with several cantilevered limiting pillars arranged in a circular array. Each limiting pillar is located between two spring teeth, the outer wall of the pawl is located outside the limiting pillar, adjacent limiting pillars surround to form a limiting hole, and a gap is formed between the limiting pillar and each spring tooth.

[0009] In some embodiments, the tail cap includes at least one cable guide tube, each cable guide tube having a small opening through which the cable passes through the outer sheath, and the rear end of the cable guide tube having several gap openings forming a circumferential array of alternating spring teeth and limiting supports.

[0010] In some embodiments, the tail cap is an integral injection molded part, and the tail cap also includes a vertical cover body. Each cover body is integrally connected to the front end of the outer peripheral wall of the axial conduit. The cover body is provided with a plurality of arc holes in a circumferential array, and each arc hole is integrally connected to a spring tooth.

[0011] The cover also includes several outer sleeves, which are coaxially arranged outside the conduit. The outer sleeves and the outer wall of the high-pressure pipe hole are fitted together with the same diameter.

[0012] In some embodiments, a sealing body is also provided in the middle of the high-pressure pipe hole, and the sealing body is fitted into the outer sheath.

[0013] In some embodiments, the tail cap is any one of engineering plastics, spring steel sheets, and copper alloys;

[0014] Alternatively, the inclination angles of the first guide ramp and the second guide ramp can both be 5°-20°.

[0015] In some implementations, the base and tail cap are snap-fit ​​or threaded.

[0016] In some embodiments, there is one tail cap, which includes multiple wire passage holes, and the base includes the same number of high-voltage pipe holes as the wire passage holes, so as to achieve a firm clamping of multiple wire harnesses.

[0017] Alternatively, there may be multiple tail caps, each tail cap including a wire passage hole, and the base including the same number of high-voltage pipe holes as the tail caps. Multiple tail caps can be detachably connected to the front end of the base to achieve secure clamping of multiple wire harnesses.

[0018] The advantages of this integrated anti-vibration locking structure for wire harnesses are as follows: First, the structure consists only of a tail cap and a base, directly integrating the wire harness locking function into the mating structure of the tail cap and base. This simplifies the structure, eliminating multiple independent locking / pressing parts found in traditional solutions, significantly reducing the number of parts and material costs. The reduced number of parts and simplified structure also lower mold and manufacturing costs. Second, the assembly process is simplified to a single step (usually direct pressing or simple rotation of the tail cap), significantly improving assembly efficiency and greatly saving assembly time and labor costs. Third, during vibration, the structure transfers the wire harness tension through the interaction of the spring teeth and the inclined plane. The structure utilizes a self-locking / wedge-tightening effect that transforms into enhanced clamping force or prevents springback. Under vibration, it can dynamically maintain or even enhance clamping force, effectively preventing wire harness loosening, improving connection reliability, and exhibiting excellent vibration resistance. Fourth, the tail cap of this structure is an integrated design, incorporating elastic spring teeth and a first guide slope that mates with the base. This integrated design reduces failure points, resulting in a compact, reliable, and more robust and durable overall structure. Fifth, the locking mechanism of this structure directly clamps the wire harness by deforming the spring teeth under the pressure of the slope during assembly. The elasticity of the spring teeth allows it to adapt to wire harnesses of a certain diameter and provides continuous clamping force, thus exhibiting good wire harness adaptability.

[0019] A connector comprising: a plurality of wire harnesses and a locking structure according to any one of the claims, and a plurality of wire harness fastening bushing locking structures.

[0020] In some embodiments, the connector further includes multiple shields and multiple adapter copper plates, the shields being located at the end of the high-voltage port, the wire harness entering the end of the high-voltage port and located inside the shields, and the connection terminals of the wire harness being soldered to the adapter copper plates.

[0021] The advantages of this connector are: reliable and secure wire harness locking, high vibration resistance, fewer overall parts, simplified and faster assembly, and effective cost reduction. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a wire harness integrated anti-vibration locking structure according to one embodiment of the present invention;

[0023] Figure 2 for Figure 1 The figure shows a cross-sectional schematic diagram of a wire harness integrated anti-vibration locking structure;

[0024] Figure 3 for Figure 1 A three-dimensional schematic diagram of the tail cap shown;

[0025] Figure 4 for Figure 3 The diagram shows the front view of the tail cover;

[0026] Figure 5 for Figure 4 AA section view of the tail cap shown;

[0027] Figure 6 for Figure 5 A partially enlarged schematic diagram of the tail cap shown;

[0028] Figure 7 for Figure 1 A three-dimensional schematic diagram of the base shown;

[0029] Figure 8 For having Figure 1 A three-dimensional schematic diagram of the connector with the locking structure shown.

[0030] Locking structure 00, tail cap 1, cable guide tube 10, cable guide hole 100, spring tooth 11, locking surface 110, pawl 12, first guide slope 13, limiting support 14, gap opening 15, cover body 16, arc hole 161, outer sleeve 162, first through hole 17, receiving groove 18; base 2, high pressure pipe hole 20, second guide slope 21, first screw hole 22, positioning tube 23, first screw 3, sealing body 4;

[0031] Wire harness 01, outer sheath 010, connecting terminal 011, shielding cover 5, adapter copper sheet 6;

[0032] Pre-installed component 02. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, while the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0034] Figures 1 to 8 The diagram schematically illustrates an integrated anti-vibration locking structure for a wire harness according to one embodiment of the present invention and a connector using the same.

[0035] like Figures 1 to 7 As shown, the integrated anti-vibration locking structure for a wire harness includes: at least one tail cap 1 and a base 2 detachably connected to the rear end of the tail cap 1. The detachable connection between the base 2 and the tail cap 1 is preferably a snap-fit ​​or a threaded fit.

[0036] The tail cap 1 includes at least one wire passage hole 100. The edge of the wire passage hole 100 is integrally connected to a plurality of cantilevered spring teeth 11 arranged in a circumferential array. Each spring tooth 11 has a certain pre-tightening rebound force. The inner surface of each spring tooth 11 is a locking surface 110. The plurality of locking surfaces 110 surround and form an elastically deformable locking hole. A toothed claw 12 is provided on the outer side of the cantilever end of each spring tooth 11. The outer surface of each claw 12 forms an inwardly inclined first guide slope 13. In a preferred configuration of the tail cap, the edge of the wire passage hole 100 is also integrally connected to a plurality of cantilevered limiting supports 14 arranged in a circumferential array. Each limiting support 14 is located between two spring teeth 11. The outer wall of the claw 12 is located outside the limiting support 14. The diameter of the outer wall of the claw 12 is larger than the diameter of the outer wall of the limiting support 14. Adjacent limiting supports 14 surround and form a limiting hole. A gap 15 is formed between the limiting support 14 and each spring tooth 11.

[0037] The wire harness 01 passes through the wire hole 100 and the locking hole to form the pre-assembled component 02.

[0038] The base 2 includes at least one high-pressure pipe hole 20, and the port of the high-pressure pipe hole 20 is provided with a second guide slope 21 that is inclined in the same way as the first guide slope 13;

[0039] The pre-assembled component 02 is pressed into the high-pressure pipe hole 20 along the assembly direction. The first guide slope 13 slides along the second guide slope 21. The second guide slope 21 radially presses all the claws 12 inward, causing the spring teeth 11 to bend and deform inward, forming the inclined locking surface 110 of the outer sheath 010 of the wire harness 01 and the conical locking hole, thereby firmly clamping the wire harness 01.

[0040] The assembly process of this integrated anti-vibration locking structure for wire harnesses is as follows:

[0041] First, the wire harness 01 is passed through the wire hole 100 and the locking hole to form a pre-assembled component 02;

[0042] Next, the pre-assembled component 02 is pressed into the high-pressure pipe hole 20 along the assembly direction. During the pressing process, the first guide slope 13 of the spring tooth 11 on the tail cover 1 first contacts the second guide slope 21 of the base 2. As the tail cover 1 continues to advance, under the squeezing action of the slope, the spring tooth 11 undergoes elastic bending deformation, and its end is forced to move in the radial direction of the wire harness 01. When the tail cover 1 is fully assembled, the end of the spring tooth 1 is at the end of the second guide slope 21. At this time, the spring tooth 11 is subjected to the combined action of the rebound force generated by the elastic deformation and the normal constraint force of the second guide slope 21 on the spring tooth 11. The spring tooth 11 is pressed tightly on the outer sheath 010 of the wire harness 01 to achieve firm clamping.

[0043] The vibration-resistant working mechanism of this wire harness is as follows: When external vibration attempts to pull wire harness 01 outward, wire harness 01 is subjected to an outward force F. pullThe spring tooth 11 of the tail cover 1 will be subjected to the reaction force F' of the wire harness. pull This reaction force can be decomposed into two components: a normal force Fn perpendicular to the second guide slope 21 or the first guide slope 13, and a tangential force Ft parallel to the slope. When the slope angle is within the range where the generated Ft > frictional force, the tangential force Ft tends to drive the end of the spring tooth (11) to slide further inward along the slope, or when the slope angle is within the range where the generated Ft < frictional force, the self-locking condition is reached, preventing the spring tooth 11 from rebounding and releasing. Therefore, in any case, the result is that the vibration load will not only not weaken the clamping force, but will also cause the spring tooth 11 to apply a greater clamping force to the wire harness 010 or maintain the original high clamping force, thereby achieving excellent anti-vibration loosening performance.

[0044] The advantages of this integrated anti-vibration locking structure for wire harnesses are as follows: First, the structure consists only of a tail cap 1 and a base 2, directly integrating the wire harness locking function into the mating structure of the tail cap 1 and the base 2. This simplifies the structure, eliminating multiple independent locking / pressing parts found in traditional solutions, significantly reducing the number of parts and material costs. The reduced number of parts and simplified structure also lower mold and manufacturing costs. Second, the assembly process is simplified to a single step (usually direct pressing or simple rotation of the tail cap), significantly improving assembly efficiency and greatly saving assembly time and labor costs. Third, during vibration, the structure converts the wire harness tension into… The self-locking / wedge-tightening effect enhances clamping force or prevents springback, dynamically maintaining or even enhancing clamping force under vibration, effectively preventing wire harness loosening, improving connection reliability, and exhibiting excellent vibration resistance. Fourth, the tail cap 1 of this structure is an integrated design, which integrates elastic spring teeth 11 and a first guide slope 13 that cooperates with the base 2. The integrated design reduces failure points, and the overall structure is compact, reliable, and more robust and durable. Fifth, the locking mechanism of this structure is to directly clamp the wire harness 01 by the deformation of the spring teeth 11 under the pressure of the slope during assembly. The elasticity of the spring teeth 11 allows it to adapt to wire harnesses of a certain range of wire diameters and provides continuous clamping force, thus exhibiting good wire harness adaptability.

[0045] Furthermore, the tail cap 1 includes at least one cable guide tube 10, each cable guide tube 10 having a cable guide hole 100 that passes through a small gap with the outer sheath 010. The rear end of the cable guide tube 10 has several gap openings 15 forming a circumferential array of alternately distributed spring teeth 11 and limiting supports 14. Its advantages are: the structure is simple, and the formed spring teeth 11 have high elasticity.

[0046] Preferably, the tail cap 1 is an integral injection molded part. The tail cap 1 also includes a vertical cover body 16. Each cover body 16 is integrally connected to the front end of the outer peripheral wall of the axial through-tube 10. The cover body 16 is provided with a plurality of arc holes 161 in a circumferential array. Each arc hole 161 is integrally connected to the outside of a spring tooth 11. Its beneficial effect is that this setting is convenient for processing and manufacturing, and further improves the elastic performance of the spring tooth 11.

[0047] The cover 16 also includes several outer sleeves 162, which are coaxially arranged outside the conduit 10. The outer sleeves 162 and the outer wall of the high-pressure pipe hole 20 are fitted together with the same diameter. The beneficial effect is that the outer sleeves 162 can improve the installation accuracy.

[0048] Furthermore, a sealing body 4 is also provided in the middle of the high-voltage pipe hole 20, and the sealing body 4 is interference-fitted to the outer sheath 010. The beneficial effect of this setting is that it further improves the locking effect of the wire harness 01.

[0049] Preferably, the tail cap 1 is an integral injection molded part made of engineering plastic with good elasticity and strength, or the tail cap 1 is a spring steel sheet or copper alloy. Its beneficial effect is that the spring teeth 11 of the tail cap 1 made of this material have high elasticity.

[0050] Furthermore, the inclination angles of the first guide slope 13 and the second guide slope 21 are both 5°-20°. Preferably, the inclination angles of the first guide slope 13 and the second guide slope 21 are both 10°. The beneficial effect is that the slopes designed with this angle must ensure that they can effectively guide the spring tooth 11 to deform inward and generate sufficient clamping force, while ensuring smooth assembly.

[0051] Furthermore, when the base 2 and the tail cap 1 are threaded together, the base 2 is provided with multiple first threaded holes 22, each first threaded hole 22 having a protruding positioning tube 23 on its edge. The tail cap 1 is provided with multiple first through holes 17, each first through hole 17 having a receiving groove 18. The positioning tube 23 is sleeved inside the first through hole 17, and the first screw 3 is located inside the receiving groove 18 and screwed into the first threaded hole 22. The advantages of this arrangement are: it facilitates connection and provides high positioning accuracy.

[0052] Furthermore, the tail cap 1 is a single unit, and the tail cap 1 includes multiple wire passage holes 100. The base 2 includes the same number of high-voltage pipe holes 20 as the wire passage holes 100, thereby achieving a secure clamping of multiple wire harnesses 01.

[0053] Furthermore, there are multiple tail caps 1, each tail cap 1 including a wire passage hole 100, and the base 2 including the same number of high-voltage pipe holes 20 as the tail caps 1. Multiple tail caps 1 are detachably connected to the front end of the base 2 to achieve secure clamping of multiple wire harnesses 01. The beneficial effect is that the above two tail cap structures are suitable for various application environments.

[0054] like Figure 8As shown, the connector includes: several wire harnesses 01 and a locking structure 00, wherein the several wire harnesses 01 are fastened to the bushing locking structure 00. Preferably, the connector also includes multiple shielding covers 5 and multiple adapter copper plates 6. The shielding covers 5 are located at the end of the high-pressure port 20, the wire harnesses 01 enter the end of the high-pressure port 20 and are located inside the shielding covers 5, and the connecting terminals 011 of the wire harnesses 01 are soldered to the adapter copper plates 6. Its advantages are: the wire harnesses 01 of this connector are reliably and securely locked, have high vibration resistance, fewer overall parts, simplified and accelerated assembly, and effectively reduced costs.

[0055] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A wire harness integrated anti-vibration locking structure, characterized in that, Includes: at least one tail cap (1) and a base (2) detachably connected to the rear end of the tail cap (1); The tail cap (1) includes at least one wire hole (100). The edge of the wire hole (100) is integrally connected with several cantilevered spring teeth (11) arranged in a circular array. The inner surface of the spring teeth (11) is a locking surface (110). Several locking surfaces (110) surround and form an elastically deformable locking hole. The outer side of the cantilever end of the spring teeth (11) is provided with a toothed claw (12). The outer surface of the claw (12) forms an inwardly inclined first guide slope (13). The wire harness (01) passes through the wire hole (100) and the locking hole to form a pre-assembled component (02). The base (2) includes at least one high-pressure pipe hole (20), and the port of the high-pressure pipe hole (20) is provided with a second guide slope (21) that is inclined in the same way as the first guide slope (13); The pre-assembled component (02) is pressed into the high-pressure pipe hole (20) along the assembly direction. The first guide slope (13) slides along the second guide slope (21). The second guide slope (21) radially squeezes all the claws (12) to move inward, causing the spring teeth (11) to bend and deform inward, forming an inclined locking surface (110) and a conical locking hole that bites and abuts the outer sheath (010) of the wire harness (01), thereby firmly clamping the wire harness (01).

2. The wire harness integrated anti-vibration locking structure according to claim 1, characterized in that, The edge of the wire hole (100) is also integrally connected with several cantilevered limiting pillars (14) arranged in a circular array. Each limiting pillar (14) is located between two spring teeth (11). The outer wall of the claw (12) is located outside the limiting pillar (14). Adjacent limiting pillars (14) surround each other to form a limiting hole. A gap (15) is formed between the limiting pillar (14) and each spring tooth (11).

3. The wire harness integrated anti-vibration locking structure according to claim 2, characterized in that, The tail cap (1) includes at least one cable tube (10), each cable tube (10) has a cable hole (100) that passes through the outer sheath (010) with a small gap, and the rear end of the cable tube (10) has several gap openings (15) forming a circumferential array of alternating spring teeth (11) and limiting support (14).

4. The wire harness integrated anti-vibration locking structure according to claim 3, characterized in that, The tail cap (1) is an integral injection molded part. The tail cap (1) also includes a vertical cover body (16). Each cover body (16) is integrally connected to the front end of the outer peripheral wall of the axial through-tube (10). The cover body (16) is provided with a plurality of arc holes (161) in a circumferential array. Each arc hole (161) is integrally connected to the outside of a spring tooth (11). The cover (16) also includes several outer tubes (162), which are coaxially arranged outside the conduit (10). The outer tubes (162) and the outer wall of the high-pressure pipe hole (20) are fitted together with the same diameter.

5. The wire harness integrated anti-vibration locking structure according to any one of claims 1 to 4, characterized in that, The high-pressure pipe hole (20) is also provided with a sealing body (4) in the middle, and the sealing body (4) is fitted with the outer sheath (010).

6. The wire harness integrated anti-vibration locking structure according to any one of claims 1 to 4, characterized in that, The tail cap (1) is any one of engineering plastic, spring steel sheet and copper alloy; The inclination angles of the first guide slope (13) and the second guide slope (21) are both 5°-20°.

7. The wire harness integrated anti-vibration locking structure according to any one of claims 1 to 4, characterized in that, The base (2) and the tail cap (1) are either snap-fit ​​or threaded.

8. The wire harness integrated anti-vibration locking structure according to any one of claims 1 to 4, characterized in that, The tail cap (1) is one, and the tail cap (1) includes multiple wire passage holes (100). The base (2) includes the same number of high-voltage pipe holes (20) as the wire passage holes (100), so as to realize the firm clamping of multiple wire harnesses (01). Alternatively, there may be multiple tail caps (1), each tail cap (1) including a wire hole (100), and the base (2) including the same number of high-pressure pipe holes (20) as the tail caps (1). Multiple tail caps (1) can be detachably connected to the front end of the base (2) to achieve a firm clamping of multiple wire harnesses (01).

9. A connector, characterized in that, include: A plurality of wire harnesses (01) and a locking structure (00) as described in any one of claims 1 to 8, wherein the plurality of wire harnesses (01) fasten the bushing locking structure (00).

10. The connector according to claim 9, characterized in that, It also includes multiple shielding covers (5) and multiple adapter copper plates (6). The shielding covers (5) are located at the end of the high-voltage hole (20). The wire harness (01) enters the end of the high-voltage hole (20) and is located inside the shielding cover (5). The connecting terminals (011) of the wire harness (01) are welded to the adapter copper plates (6).

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