An electric wire plug structure

Abstract

This utility model proposes a wire plug structure to improve the production efficiency and ensure the quality of wire plugs. It includes a plug bracket with a wire core channel extending through its front and rear ends. The key feature is that a mating groove is provided at the front end of the plug bracket, and a wire harness end is fitted onto the groove opening. The wire harness end has an annular groove for the edge of the groove opening to be inserted. A wire passes through the wire harness channel of the wire harness end, with its core passing through the mating groove into the wire core channel. A plug shell is formed on the assembled plug bracket and wire harness end. A silicone gasket is provided inside the mating groove to seal the opening of the wire harness channel. The silicone gasket has several through-holes, through which the wire cores pass into the wire core channel of the plug bracket.

Description

Technical Field

[0001] This utility model relates to a wire plug structure. Background Technology

[0002] The existing method involves installing the wires on a bracket (inner mold), applying waterproof adhesive, and then injection molding the outer shell (outer mold) to encase the inner mold bracket after the adhesive has dried. Because the existing inner mold lacks a structure conducive to adhesion between the inner mold and the adhesive application area, the outer mold and inner mold are prone to detachment during injection molding, leading to an increased defect rate. Furthermore, since the waterproof adhesive often requires more than 24 hours to dry completely, this results in excessively long waiting times in the production process, hindering production efficiency. Utility Model Content

[0003] This utility model proposes a wire plug structure, aiming to improve the production efficiency and ensure the quality of wire plugs. The specific technical details are as follows:

[0004] A wire plug structure includes a plug bracket with a wire core channel passing through its front and rear ends. A mating groove is provided at the front end of the plug bracket, and a wire harness end is assembled on the groove opening. The wire harness end has an annular groove for the edge of the groove opening of the mating groove to be inserted. The wire passes through the wire harness channel of the wire harness end, with its wire core passing through the mating groove into the wire core channel. A plug shell is formed on the assembled plug bracket and wire harness end.

[0005] Preferably, a silicone gasket is provided in the mating groove to seal the opening of the wire harness channel. The silicone gasket has several through-holes that penetrate the gasket body, and the wire cores of the wires pass through the through-holes to enter the wire core channel of the plug bracket.

[0006] Preferably, the core channel is provided with a wire clamp, which includes a plurality of elastic wire clamping bodies located at the center of the core channel and extending toward the inner wall of the core channel, and the elastic wire clamping bodies cooperate with the inner wall to form a plurality of single core channels.

[0007] Preferably, the bottom of the docking groove is provided with a through hole corresponding to the single wire core channel, and the branch hole on the silicone pad is opposite to the through hole of the docking groove.

[0008] Preferably, the outer shell of the wire harness end narrows from one end where the annular groove is located to the other end, thereby forming several slopes on the surface of the outer shell.

[0009] Compared with the prior art, the advantages of this utility model include at least the following: the mating groove of the plug bracket and the annular groove of the wire harness end are interlocked; wherein, a silicone gasket is set in the mating groove to achieve the first layer of waterproofing, and quick-drying adhesive is applied to the joint after the plug bracket and the wire harness end are assembled to achieve the second layer of waterproofing, and the quick-drying adhesive can be applied for about 10 minutes before injection molding, with a short waiting time, and the outer mold (plug shell) and inner mold (plug bracket and wire harness end) will not separate during injection molding, resulting in high production efficiency and stable quality. Attached Figure Description

[0010] Figure 1 A schematic diagram of the external structure after the plug bracket and cable tie end are assembled.

[0011] Figure 2 A cross-sectional view of the assembled plug bracket and cable tie end.

[0012] Figure 3 This is a schematic diagram of the external structure of the plug bracket and cable tie end after disassembly.

[0013] Figure 4 This is a cross-sectional view of the plug bracket and cable tie end in disassembled condition.

[0014] Figure 5 This is a schematic diagram of the front end structure of the wire harness.

[0015] Figure 6 This is a schematic diagram of the rear structure of the wire harness end.

[0016] Figure 7 This is a schematic diagram of the front orthographic projection of the plug bracket.

[0017] Figure 8 This is a schematic diagram of the overall cross-sectional structure of the electrical plug. Detailed Implementation

[0018] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution:

[0019] See appendix Figures 1 to 8The plug structure includes a plug bracket 1 and a wire harness end 2. The plug bracket 1 has a wire core channel 10 passing through its front and rear ends. A wire clamp 3 is provided in the wire core channel 10. The wire clamp 3 includes a plurality of elastic wire clamping bodies 31 located at the center of the wire core channel 10 and extending towards the inner wall of the wire core channel 10. The elastic wire clamping bodies 31 cooperate with the inner wall to form a plurality of single wire core channels 100. When the wire core passes through the single wire core channel 100, it is clamped by the elastic wire clamping bodies 31 and the inner wall, providing a certain constraint force. A docking groove 11 is provided at the front end of the plug bracket 1. A through hole 12 is provided at the bottom of the docking groove 11, which communicates with the wire core channel 10 and is opposite to each single wire core channel 100. A silicone gasket 4 is provided in the docking groove 11 to achieve the first layer of waterproofing. A plurality of wire splitting holes 40 are provided on the silicone gasket 4, which correspond one-to-one with the through holes 12 of the docking groove 11.

[0020] The cable harness end 2 is assembled on the groove of the docking groove 11. It has an annular groove 21 for the edge of the groove of the docking groove 11 to be inserted. The wire 5 passes through the cable harness channel 20 of the cable harness end 2 and its core 51 enters each single core channel 100 through the branch hole 40 of the silicone gasket 4 and the through hole 12 of the docking groove 11. Each core 51 extends out of the rear end of the plug bracket 1 and connects to the pin (not shown in the figure). Then the cable harness end 2 is docked with the plug bracket 1, and the silicone gasket 4 seals the opening of the cable harness channel 20. Quick-drying adhesive is applied at the docking point to achieve a second layer of waterproofing. After applying the quick-drying adhesive for about 10 minutes, it can be injection molded. A plug shell 6 is formed on the outside of the plug bracket 1 and the cable harness end 2.

[0021] Based on the above structure, it not only meets the requirements of rapid assembly and waterproofing, but also has a good sealing performance and adhesive adhesion structure at the connection between the plug bracket 1 and the wire harness end 2, so quick-drying adhesive can be used instead of traditional waterproof adhesive. The waiting time is short, and the outer mold (plug housing 6) and the inner mold (plug bracket 1 and wire harness end 2) will not separate during injection molding, resulting in high production efficiency and stable quality.

[0022] As a preferred embodiment, the outer shell of the wire harness end 2 narrows from one end where the annular groove 21 is located to the other end, and then forms several slopes 22 on the surface of the outer shell. When the plug shell 6 is injection molded, the slopes 22 are subjected to force, causing the wire harness end 2 to be squeezed towards the plug bracket 1, thereby making the connection between the two tighter and more secure.

[0023] The above preferred embodiments should be regarded as illustrative examples of the embodiments of the present application. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present application should be considered within the scope of protection of this patent.

Claims

1. A wire plug structure, comprising a plug bracket having a wire core channel extending through its front and rear ends, characterized in that, A mating groove is provided at the front end of the plug bracket. A wire harness end is assembled on the groove opening. The wire harness end has an annular groove for the edge of the groove opening of the mating groove to be inserted. The wire passes through the wire harness channel of the wire harness end and its core passes through the mating groove into the core channel. A plug shell is formed on the outside of the assembled plug bracket and wire harness end.

2. The electrical plug structure according to claim 1, characterized in that, A silicone gasket is provided in the docking groove to seal the opening of the wire harness channel. Several branch holes penetrating the gasket are provided on the silicone gasket, and the wire cores of the wires pass through the branch holes to enter the wire core channel of the plug bracket.

3. The electrical plug structure according to claim 2, characterized in that, The core channel is equipped with a wire clamp, which includes several elastic wire clamping bodies located at the center of the core channel and extending towards the inner wall of the core channel. The elastic wire clamping bodies cooperate with the inner wall to form several single core channels.

4. The electrical plug structure according to claim 3, characterized in that, The bottom of the docking groove is provided with a through hole corresponding to the single wire core channel, and the branch hole on the silicone pad is opposite to the through hole of the docking groove.

5. The electrical plug structure according to any one of claims 1-4, characterized in that, The outer shell of the wire harness end narrows from one end where the annular groove is located to the other end, and then forms several slopes on the surface of the outer shell.

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