Wire harness insert

Abstract

The application provides a wire harness plug-in. The wire harness plug-in comprises a plug-in, a sealing plug and a positioning tool. The end of the plug-in is provided with a plurality of insertion holes, and the sealing plug is inserted into part of the insertion holes. The positioning tool comprises a top plate, a limiting plate and side plates located at both ends of the top plate, the limiting plate is arranged between the top plate and the sealing plug, and the side plates are in clamping cooperation with the side walls of the plug-in. The limiting plate pushes the sealing plug into the insertion hole through the clamping cooperation of the positioning tool and the side walls of the plug-in, which fundamentally prevents the sealing plug from being pushed out or displaced during the wire harness assembly process, and significantly improves the waterproof and dustproof performance of the plug-in.

Description

Technical Field

[0001] This application relates to the field of wire harness technology, and more particularly to a wire harness plug. Background Technology

[0002] In the current design and application of wire harness connectors, sealing plugs (also known as waterproof plugs or waterproof sealants) are widely used as a key sealing component. Their main function is to isolate the gap between the connector connection and the outer wall of the wire from the external environment, providing protection and sealing, and are particularly important in dustproofing, moisture-proofing, and waterproofing.

[0003] However, existing sealing plugs are prone to displacement or even complete ejection during wire harness splicing operations, leading to seal failure. This problem allows external media such as moisture and dust to penetrate the connector, causing serious malfunctions such as short circuits, corrosion, and abnormal signal transmission, severely impacting the reliability and lifespan of the wire harness assembly.

[0004] Therefore, it is necessary to design a wire harness plug-in to solve the above-mentioned technical problems. Utility Model Content

[0005] This application provides a wire harness insert that prevents the sealing plug from falling off.

[0006] According to an embodiment of this specification, a wire harness plug is provided, which includes a plug, a sealing plug, and a positioning fixture; the plug has a plurality of insertion holes at its end, and the sealing plug is inserted into some of the insertion holes; the positioning fixture includes a top plate, a limiting plate, and side plates located at both ends of the top plate, the limiting plate being disposed between the top plate and the sealing plug, and the side plates engaging with the side walls of the plug respectively.

[0007] Furthermore, the side plate has a protrusion extending toward the connector at one end away from the top plate, and the connector has a groove that matches the protrusion.

[0008] Furthermore, the side plate is provided with a first stop extending to the other side plate at one end away from the top plate, and the side wall of the connector is provided with an outwardly protruding positioning block, the first stop abutting against the bottom wall of the positioning block.

[0009] Furthermore, the first stop block has a second stop block extending toward the insertion hole at one end away from the side plate, and the second stop block abuts against the side wall of the positioning block.

[0010] Furthermore, there are two positioning blocks, which are arranged opposite to each other about the connector.

[0011] Furthermore, the top plate includes an upper top plate and a lower top plate, the upper top plate being stacked on top of the lower top plate and partially overlapping it, the size of the upper top plate being larger than the size of the lower top plate, the end of the upper top plate away from the lower top plate being connected to one of the side plates, and the end of the lower top plate away from the upper top plate being connected to another of the side plates.

[0012] Furthermore, the sealing plug has a cylindrical structure, and the limiting plate has an arc-shaped structure.

[0013] Furthermore, the side plate is arranged parallel to the limiting plate.

[0014] Furthermore, multiple limiting plates are provided, with intervals between the multiple limiting plates and intervals between the limiting plates and the side plates.

[0015] Furthermore, the sealing plug is made of soft rubber or a hard plastic rod.

[0016] This application has the following beneficial effects: By engaging the positioning fixture with the side wall of the connector, the limiting plate pushes the sealing plug into the socket, fundamentally preventing the sealing plug from being pushed out or displaced during the wire harness assembly process, and significantly improving the waterproof and dustproof performance of the connector.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0019] Figure 1 This is a schematic diagram of the structure of the wire harness plug-in in the embodiments of this application;

[0020] Figure 2 This is a schematic diagram of the wire harness plug-in from another perspective in the embodiments of this application;

[0021] Figure 3 This is a schematic diagram of the positioning tooling in the embodiments of this application;

[0022] Figure 4 This is a schematic diagram of the structure of the connector and sealing plug in the embodiment of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10-Connector; 11-Groove; 12-Positioning block;

[0025] 20 - Sealing plug;

[0026] 30-Positioning fixture; 31-Top plate; 311-Upper top plate; 312-Lower top plate; 32-Side plate; 321-Protrusion; 322-First stop block; 323-Second stop block; 33-Limiting plate. Detailed Implementation

[0027] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0028] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0029] The embodiments described in this specification will now be described in detail.

[0030] Reference Figure 1 and Figure 2 As shown, this application discloses a wire harness plug, which includes a connector 10, a sealing plug 20, and a positioning fixture 30. The sealing plug 20 is fixed to the connector 10 by the positioning fixture 30, thereby fundamentally preventing the sealing plug 20 from being pushed out or displaced during the assembly process of the wire harness, and significantly improving the waterproof and dustproof performance of the connector 10.

[0031] The end of the connector 10 is provided with several holes (not shown in the figure), including through holes for inserting the wiring harness and sealing holes for installing the sealing plug 20. The specific through holes and sealing holes need to be adjusted according to the actual situation of the wiring harness insertion, and no specific restrictions are imposed here.

[0032] When some sockets on the connector 10 are not connected to wire harnesses, a sealing plug 20 is typically inserted into those sockets to prevent water and dust from entering and affecting the practical safety of the connector 10. In some embodiments, the sealing plug 20 is made of soft rubber or a hard plastic rod to suit the sealing requirements of different sockets. Soft rubber plugs are suitable for dynamic sealing of wire sockets, while hard plastic rods are suitable for permanent sealing of unused sockets.

[0033] Please refer to the reference again. Figure 3 and Figure 4As shown, the positioning fixture 30 includes a top plate 31, a limiting plate 33, and side plates 32 located at both ends of the top plate 31. The limiting plate 33 is disposed between the top plate 31 and the sealing plug 20, and the side plates 32 on both sides are respectively engaged with the side walls of the connector 10.

[0034] The top plate 31 includes an upper top plate 311 and a lower top plate 312. The upper top plate 311 is stacked on top of the lower top plate 312 and partially overlaps with it. The size of the upper top plate 311 is larger than that of the lower top plate 312. The end of the upper top plate 311 away from the lower top plate 312 is connected to a side plate 32, and the end of the lower top plate 312 away from the upper top plate 311 is connected to another side plate 32.

[0035] The upper top plate 311 is larger, especially its extended portion, which provides the operator with a wide and comfortable gripping area. This facilitates finger gripping and force application, making the operation more effortless and stable when installing or removing the positioning fixture 30, greatly improving assembly efficiency and ergonomics.

[0036] Furthermore, the stacked structure creates a stepped limiting surface on the top plate 31 in the vertical direction. This structure can more effectively resist lateral torsion or deformation, enhance the overall rigidity and stability of the positioning fixture 30, and ensure that it can maintain the correct position when subjected to uneven forces, thereby guaranteeing the reliability of the limiting function.

[0037] The side plate 32, away from the top plate 31, has a protrusion 321 extending towards the connector 10, and the connector 10 has a groove 11 that matches the protrusion 321. Thus, on the one hand, the protrusion 321 serves as a guide structure, guiding the side plate 32 and the connector 10 to quickly align, ensuring that the limiting plate 33 can accurately move to the predetermined position on the sealing plug 20, greatly improving the convenience and accuracy of assembly. On the other hand, after the protrusion 321 is embedded in the groove 11, it effectively restricts the movement or shaking of the positioning fixture 30, preventing the limiting mechanism from failing due to displacement of the positioning fixture 30, and enhancing the connection rigidity and stability of the overall structure of the positioning fixture 30.

[0038] The side plate 32, away from the top plate 31, has a first stop 322 extending towards the other side plate 32. The side wall of the connector 10 has an outwardly protruding positioning block 12, and the first stop 322 abuts against the bottom wall of the positioning block 12. In this way, the upward movement of the positioning fixture 30 can be restricted to prevent it from disengaging from the connector 10, thereby avoiding the positioning failure between the limiting plate 33 and the sealing plug 20 caused by the displacement of the positioning fixture 30.

[0039] The first stop 322 has a second stop 323 extending towards the insertion hole at its end away from the side plate 32. The second stop 323 abuts against the side wall of the positioning block 12. Thus, the second stop 323 and the first stop 322 together form an L-shaped or approximately L-shaped snap-fit ​​structure, effectively restricting the horizontal movement of the positioning fixture 30, enhancing the connection strength and stability between the positioning fixture 30 and the insertion piece 10, and ensuring that the sealing plug 20 is reliably held in the predetermined position. Here, the horizontal direction can refer to the plane where the positioning block 12 is located.

[0040] In this embodiment, two positioning blocks 12 are provided. The connector 10 has an approximately square structure, with two side plates 32 respectively disposed on the outer sides of the two opposite short sides of the square structure. The two positioning blocks 12 are disposed opposite to the connector 10 on the two long sides. The opposite distribution of the two positioning blocks 12 ensures that the connection force between the positioning fixture 30 and the connector 10 is uniformly balanced, effectively preventing the positioning fixture 30 from tilting, lifting, or shaking due to uneven force on one side. This ensures that the limiting plate 33 can always stably apply uniform pressure to the sealing plug 20, resulting in a more reliable sealing effect.

[0041] In the above embodiments, the side plates 32 at both ends of the top plate 31 employ different positioning structures to lock the positioning fixture 30 and the connector 10 together. In other embodiments, the side plates 32 at both ends of the top plate 31 can also employ the same positioning structure to lock the positioning fixture 30 and the connector 10 together. In other words, the locking structure on the side plate 32 can be flexibly adjusted according to the locking structure on the connector 10, and therefore is not limited here.

[0042] Considering that the socket is generally circular, the corresponding sealing plug 20 is cylindrical to fit the socket. The corresponding positioning plate is set as an arc-shaped structure to fit the outer wall of the sealing plug 20. The arc-shaped limiting plate 33 can contact the outer peripheral wall of the cylindrical sealing plug 20 with a larger curved surface, significantly increasing the contact area compared to a planar structure. This allows the limiting plate 33 to more evenly and firmly abut against the sealing plug 20, effectively distributing the force applied to the sealing plug 20 and preventing deformation or damage due to excessive local stress, thereby greatly improving the sealing reliability of the sealing plug 20.

[0043] Furthermore, the arc-shaped limiting plate 33 prevents sharp edges or planar corners from cutting, squeezing, or abrading the sealing plug 20 and the adjacent wiring harness, thus better protecting the integrity of the sealing plug 20 and the wiring harness. In addition, compared to the cylindrical limiting plate 33, the arc-shaped limiting plate 33 can effectively reduce the weight and manufacturing cost of the limiting plate 33 itself.

[0044] In this embodiment, the side plate 32 and the limiting plate 33 are arranged parallel to each other. This parallel arrangement makes the force transmitted from the side plate 32 to the limiting plate 33 more uniform and perpendicular. When the positioning fixture 30 is engaged with the connector 10 via the side plate 32, the limiting plate 33 can resist the sealing plug 20 with the largest area and the most positive force, thereby more effectively and reliably preventing the sealing plug 20 from being pushed backward during subsequent wire harness insertion, ensuring absolute reliability of the seal.

[0045] Multiple limiting plates 33 are provided, with intervals between them, and intervals between the limiting plates 33 and the side plates 32. This allows for precise application of force and independent deformation in different zones. The multiple spaced limiting plates 33 can correspond to and abut against the sealing plugs 20 at different positions or in different rows, achieving independent and precise limiting of the multiple sealing plugs 20.

[0046] This design allows each limiting plate 33 to undergo small elastic deformation independently according to the thrust applied to its corresponding sealing plug 20, avoiding the torsion or uneven stress that may occur when a single plate is subjected to force. This ensures that the sealing plug 20 of each socket can obtain a reliable and consistent holding force, greatly improving the reliability of the overall seal.

[0047] Furthermore, the gaps between the side plate 32 and the limiting plate 33, as well as between two adjacent limiting plates 33, can be used to accommodate the connection between the remaining sockets on the connector 10 and the wire harness. The height of the limiting plate 33 can be adjusted according to the number of cables to improve the versatility of the positioning fixture 30.

[0048] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A wire harness plug-in, characterized in that, It includes a connector, a sealing plug, and a positioning fixture; the connector has several insertion holes at its end, and the sealing plug is inserted into some of the insertion holes; the positioning fixture includes a top plate, a limiting plate, and side plates located at both ends of the top plate, the limiting plate is disposed between the top plate and the sealing plug, and the side plates are engaged with the side walls of the connector.

2. The wire harness plug-in according to claim 1, characterized in that, The side plate has a protrusion extending toward the connector at one end away from the top plate, and the connector has a groove that matches the protrusion.

3. The wire harness plug-in according to claim 1, characterized in that, The side plate is provided with a first stop block extending to the other side plate at one end away from the top plate, and the side wall of the connector is provided with an outwardly protruding positioning block, with the first stop block abutting against the bottom wall of the positioning block.

4. The wire harness plug-in according to claim 3, characterized in that, The first stop block has a second stop block extending toward the insertion hole at one end away from the side plate, and the second stop block abuts against the side wall of the positioning block.

5. The wire harness plug-in according to claim 4, characterized in that, There are two positioning blocks, which are arranged opposite to each other about the connector.

6. The wire harness plug-in according to claim 1, characterized in that, The top plate includes an upper top plate and a lower top plate. The upper top plate is stacked on top of the lower top plate and partially overlaps with it. The size of the upper top plate is larger than that of the lower top plate. The end of the upper top plate away from the lower top plate is connected to one of the side plates, and the end of the lower top plate away from the upper top plate is connected to another side plate.

7. The wire harness plug-in according to claim 1, characterized in that, The sealing plug has a cylindrical structure, and the limiting plate has an arc-shaped structure.

8. The wire harness plug-in according to claim 1, characterized in that, The side plate is arranged parallel to the limiting plate.

9. The wire harness plug-in according to claim 8, characterized in that, The limiting plate is provided in multiple ways, and the multiple limiting plates are spaced apart. The limiting plate and the side plate are spaced apart.

10. The wire harness plug-in according to claim 1, characterized in that, The sealing plug is made of soft rubber or a hard plastic rod.

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