Automotive wiring harness plug-in with waterproof function

Abstract

The invention discloses an automotive wiring harness plug-in with a waterproof function. The automotive wiring harness plug-in comprises an inner core, terminals and an elastic sheet; multiple terminal mounting holes are formed in the inner core; one terminal is mounted in one corresponding terminal mounting hole; a shell is arranged on the inner core; an accommodating cavity is formed between the outer wall of the inner core and the inner wall of the shell; the elastic sheet is arranged on the top of the shell; the automotive wiring harness plug-in also comprises a sealing mechanism mounting shell; the sealing mechanism mounting shell and the inner core are coaxially arranged; a sealing ring and a back cover are mounted in the sealing mechanism mounting shell; the back cover and the sealing mechanism mounting shell are fixed in a clamping manner; and wire-passing holes which are formed in one-to-one correspondence with the corresponding terminal mounting holes are formed in both of the sealing ring and the back cover, wherein sealing needles are inserted in the corresponding wire-passing holes in the sealing ring. The automotive wiring harness plug-in can be effective in the waterproof effect.

Description

technical field [0001] The invention relates to a wire harness insert, in particular to an automobile wire harness insert with waterproof function. Background technique [0002] The automotive wiring harness plug-in is a transitional structure for current transmission, and the plug-in structure design, fixing reliability and waterproofness are crucial to the safety of the wiring harness. Common wire harness plug-ins in the prior art have the following problems: [0003] Such as figure 1 As shown, it is a cross-sectional view of a commonly used wire harness plug-in in the prior art. The plug-in includes a plug-in body 100, a terminal mounting hole 200, a terminal 300, a sealing plug 400 and a wire harness 500. In actual use, existing terminal mounting holes often appear 200 does not need to install the terminal 300, when the terminal 300 is not installed, the sealing plug 400 alone is used for waterproofing, but since the sealing plug 400 has a hole for the wire harness 500...

AI Technical Summary

Problems solved by technology

[0003] like figure 1 As shown, it is a cross-sectional view of a commonly used wire harness plug-in in the prior art. The plug-in includes a plug-in body 100, a terminal mounting hole 200, a terminal 300, a sealing plug 400 and a wire harness 500. In actual use, existing terminal mounting holes often appear 200 does not need to install the terminal 300, when the terminal 300 is not installed, the sealing plug 400 alone is used for waterproofing, but since the sealing plug 400 has a hole for the wire harness 500 to pass through, the waterproof effect is not good, and water ingress is prone to occur. question

[0004] In addition, the shrapnel of the existing plug-in is easy to break from the root. Since the movement of the shrapnel in the up and down directions is uncontrollable, the root of the shrapnel is easy to break after being pressed many times, so it can only be improved passively by strengthening the thickness of the root

In addition, the shrapnel of the wiring harness plug-in is also greatly affected by temperature, and it is easy to cause the root to break after repeated clamping

[0005] It is troublesome to replace the terminal. The traditional wire harness plug-in is fixed to the terminal through the internal clamping boss. After repeated plugging and unplugging, it is easy to cause damage to the terminal. Since the wire harness plug-in is a closed structure, it is necessary to use a pick when replacing the terminal. Very inconvenient and less efficient for terminal replacement

Images