High durability tail wire seal structure and vehicle end connector applying same

Abstract

The utility model discloses a kind of high durability tail part line sealing structure and the vehicle end connector applied to it. The line sealing structure of the vehicle end connector includes: pedestal and at least one line sealing ring;Pedestal includes shell portion and at least one guiding support portion, at least one drain hole is equipped on the subsidence cavity lateral wall upper end of shell portion tail end, guiding support portion is connected in shell portion and its tail end is located in subsidence cavity, guiding support portion has the accommodating cavity of axial both ends open and its tail end lateral wall is equipped with at least one flow guide groove, accommodating cavity, flow guide groove, subsidence cavity and drain hole are sequentially communicated to form drainage passage;Line sealing ring elastic interference sleeve joint accommodating cavity tail end, the center hole of line sealing ring is elastically sheathed and seals the tail part of cable, the tail end face of line sealing ring is higher than flow guide groove and it has a distance A between the tail end face of accommodating cavity. The utility model has the effect that line sealing is reliable and durable, and product service life is high.

Description

Technical Field

[0001] This utility model relates to the field of vehicle end connectors, and in particular to a high-durability tail wire sealing structure and a vehicle end connector using the same. Background Technology

[0002] Connectors are widely used in vehicle electrical connections. The cable tail of the vehicle-end connector usually requires a sealing ring connection. In applications, there are situations where the cable is subjected to right-angle tension, causing the tension to be directly transmitted to the sealing ring in a 90° direction, which greatly reduces the sealing reliability. To improve this situation, the sealing ring is usually set down to greatly reduce the angle between the cable and the sealing ring. The drawback is that water can accumulate in the downsized area. Long-term water accumulation will significantly reduce the durability of the tail sealing ring, and may cause sealing failure before the connector reaches its lifespan. Water molecules can enter the connector and cause electronic components to fail, thereby reducing the service life of the connection product. Utility Model Content

[0003] To address one or more of the aforementioned problems, this invention provides a highly durable tail wire sealing structure and a vehicle-end connector using the same.

[0004] According to one aspect of the present invention, a high-durability tail wire seal structure includes: a base and at least one wire seal ring;

[0005] The base includes an outer shell and at least one guide support. The outer shell has a recessed cavity at its tail end, and at least one drain hole is provided on the upper end of the side wall of the recessed cavity. The guide support is connected to the inner shell and its tail end is located in the recessed cavity. The guide support has a receiving cavity with open ends in the axial direction and at least one flow channel is provided on the side wall of its tail end. The receiving cavity, flow channel, recessed cavity and drain hole are connected in sequence to form a drainage passage.

[0006] The wire seal ring is elastically interference-fitted into the end of the receiving cavity. The center hole of the wire seal ring elastically encloses and seals the end of the cable. The end face of the wire seal ring is higher than the guide groove and there is a distance A between it and the end face of the receiving cavity.

[0007] The advantages of this high-durability tail wire seal structure are: it has a new drainage channel that quickly drains water accumulated in the tail of the receiving cavity, eliminating water accumulation due to the sinking area of ​​the tail. It is suitable for specific working conditions prone to water accumulation, effectively reducing the contact time between the wire seal and the liquid, ensuring the durability of the wire seal, preventing premature failure of the wire seal, and improving the sealing ability and salt spray resistance of the connector product throughout its life cycle, thereby ensuring the product's service life and performance.

[0008] In some implementations, the tail end face of the wire seal is higher than the head end of the guide groove, meaning that the wire seal is in complete contact with the receiving cavity but not with the guide groove.

[0009] In some embodiments, the guide groove is an open groove that penetrates the tail end wall of the guide support, and the depth of the guide groove is B, where B≤A.

[0010] In some implementations, the guide channel is any one of a U-shaped channel, a rectangular channel, and a V-shaped channel.

[0011] In some implementations, the inner wall of the guide channel contacts the cable sheath, and the outline of its inner wall is rounded for a smooth finish.

[0012] In some embodiments, the drain hole is located away from the tail end wall of the outer casing, and the upper edge of the drain hole is flush with or slightly higher than the upper end wall of the recessed cavity.

[0013] In some embodiments, the drainage hole is any one of a circular hole, an oblong hole, or a rectangular hole that horizontally penetrates the sidewall of the sinking cavity.

[0014] In some implementations, the upper wall of the sinking cavity is higher than the head end of the guide channel, and the drainage hole is higher than the guide channel.

[0015] In some embodiments, the base is an injection molded part, and a rectangular recessed cavity is provided at the tail end of the base. The middle section of the two guide supports is integrally connected to the upper cavity wall of the recessed cavity. The tail end of each receiving cavity has a round hole with an elastic interference sleeve and a sealing ring. A flow guide groove is provided on the side wall of the tail end of the guide support, and a drainage hole is provided on the upper end of the side wall of the recessed cavity.

[0016] According to one aspect of this utility model, a vehicle-end connector includes any of the above-described line sealing structures. Its advantages are: the vehicle-end connector exhibits no water accumulation at the tail end, provides a reliable and durable tail-end line seal, and offers high sealing capability and salt spray resistance throughout its lifespan, effectively guaranteeing service life and performance. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a high-durability tail line sealing structure according to one embodiment of the present invention.

[0018] Figure 2 for Figure 1 A top view of the tail line seal structure shown.

[0019] Figure 3 for Figure 2 A schematic AA cross-sectional view of the tail line seal structure shown;

[0020] Figure 4 for Figure 1 A three-dimensional schematic diagram of the base shown;

[0021] Base 1, outer shell 10, recessed cavity 100, drain hole 101, guide support 11, receiving cavity 110, flow channel 111, rounded corner 112, TPA locking piece 12;

[0022] Wire sealing ring 2, center hole 20; cable 3;

[0023] Lead insertion hole 4, open clamp end 41, front lead hole 42. Detailed Implementation

[0024] 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.

[0025] Figures 1 to 4 A high-durability tail wire seal structure according to one embodiment of the present invention is schematically shown. As shown, the high-durability tail wire seal structure includes: a base 1 and at least one wire sealing ring 2;

[0026] The base 1 includes an outer shell 10 and at least one guide support 11. The outer shell 10 has a recessed cavity 100 at its tail end. The upper end of the side wall of the recessed cavity 100 has at least one drain hole 101. The guide support 11 is connected to the inner shell 10 and its tail end is located in the recessed cavity 100. The guide support 11 has a receiving cavity 110 with open ends in the axial direction and at least one guide groove 111 on the side wall of its tail end. The receiving cavity 110, the guide groove 111, the recessed cavity 100 and the drain hole 101 are connected in sequence to form a drainage passage.

[0027] The wire seal ring 2 is elastically interference-fitted into the tail end of the receiving cavity 110. The center hole 20 of the wire seal ring 2 elastically encloses and seals the tail end of the cable 3. The tail end face of the wire seal ring 2 is higher than the guide groove 111 and there is a distance A between it and the tail end face of the receiving cavity 110.

[0028] The advantages of this high-durability tail wire seal structure are: it has a novel drainage channel that quickly drains water accumulated in the tail of the receiving cavity 110, eliminating water accumulation due to the sinking area of ​​the tail. It is suitable for specific working conditions prone to water accumulation, effectively reducing the contact time between the wire seal and the liquid, ensuring the durability of the wire seal, preventing premature failure of the wire seal, and improving the sealing ability and salt spray resistance of the connector product throughout its life cycle, thereby ensuring the product's service life and performance.

[0029] Furthermore, the tail end face of the line sealing ring 2 is higher than the head end of the guide groove 11, meaning that the line sealing ring 2 is in complete contact with the receiving cavity 110 without contacting the guide groove 11. Preferably, the guide groove 111 is an open groove penetrating the tail end wall of the guide support portion 11, and the depth of the guide groove 111 is B, where B≤A. The beneficial effect is that this arrangement ensures good drainage while maintaining the sealing performance of the line sealing ring 2.

[0030] Preferably, the guide channel 111 is any one of a U-shaped channel, a rectangular channel, and a V-shaped channel. Its advantages are: this design facilitates processing and manufacturing, and provides excellent drainage.

[0031] Furthermore, the inner wall of the guide groove 111 contacts the cable sheath, and the contour lines of its inner wall are all rounded 112 for a smooth finish. The beneficial effect is that the rounded corners 112 prevent sharp edges from scratching the cable seal ring 2 during installation, ensuring the reliability of the cable seal.

[0032] Furthermore, the drain hole 101 is located away from the tail end wall of the outer casing 10, and the upper edge of the drain hole 101 is flush with or slightly higher than the upper end wall of the recessed cavity 100. Preferably, the drain hole 101 is any one of a circular hole, an oblong hole, and a rectangular hole that horizontally penetrates the side wall of the recessed cavity 100. Preferably, the upper cavity wall of the recessed cavity 100 is higher than the head end of the guide channel 11, and the drain hole 100 is higher than the guide channel 11. Its beneficial effect is that this arrangement has good drainage performance and can be used in various placement scenarios.

[0033] Furthermore, the base 1 is an injection molded part, and the tail end of the base 1 is provided with a rectangular recessed cavity 100. The middle section of the two guide support parts 11 is integrally connected to the upper cavity wall of the recessed cavity 100. The tail end of each cavity 100 is provided with an elastic interference sleeve for the sealing ring 2. The tail end side wall of the guide support part 11 is provided with a flow channel 111, and the upper end of the side wall of the recessed cavity 100 is provided with a drain hole 101.

[0034] Figures 1 to 3 A vehicle-end connector according to one embodiment of the present invention is schematically shown. As shown, the vehicle-end connector includes: the aforementioned wire sealing structure and at least one lead socket 4. The head end of the receiving cavity 100 is fixedly connected to the lead socket 4. The cable 3 passes through the wire sealing ring 2 and is fixedly connected to the open clamping end 41 of the lead socket 4. The pin passes through the head end of the receiving cavity 100 and is inserted into the front lead hole 42 of the lead socket 4. A TPA locking plate 12 is also installed on the outer peripheral wall of the outer shell 10. Preferably, the cable 3 is a small-diameter cable. Its advantages are: no water accumulation at the tail end of the vehicle-end connector, reliable and durable tail end wire seal, high sealing capability and salt spray resistance throughout the product's lifespan, and effective guarantee of service life and performance.

[0035] 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 high-durability tail line sealing structure, characterized in that, Includes: a base (1) and at least one wire seal (2); The base (1) includes an outer shell (10) and at least one guide support (11). The outer shell (10) has a recessed cavity (100) at its tail end. The upper end of the side wall of the recessed cavity (100) has at least one drain hole (101). The guide support (11) is connected to the inner shell (10) and its tail end is located in the recessed cavity (100). The guide support (11) has a receiving cavity (110) with open ends in the axial direction and at least one guide groove (111) on the side wall of its tail end. The receiving cavity (110), the guide groove (111), the recessed cavity (100) and the drain hole (101) are connected in sequence to form a drainage passage. The line sealing ring (2) is elastically interference-fitted to the tail end of the receiving cavity (110), and the center hole (20) of the line sealing ring (2) elastically wraps around and seals the tail end of the cable (3). The tail end face of the line sealing ring (2) is higher than the guide groove (111) and there is a distance A between it and the tail end face of the receiving cavity (110).

2. The line sealing structure according to claim 1, characterized in that, The tail end face of the line sealing ring (2) is higher than the head end of the guide groove (11), that is, the line sealing ring (2) is in complete contact with the receiving cavity (110) but not with the guide groove (11).

3. The line sealing structure according to claim 2, characterized in that, The guide groove (111) is an open groove that penetrates the tail end wall of the guide support part (11). The depth of the guide groove (111) is B, and B≤A.

4. The line sealing structure according to claim 3, characterized in that, The guide groove (111) can be any one of a U-shaped groove, a rectangular groove, or a V-shaped groove.

5. The line-sealing structure according to claim 1, characterized in that, The inner wall of the guide groove (111) is in contact with the cable sheath, and the outline of its inner wall is rounded (112) for smoothing.

6. The line sealing structure according to claim 1, characterized in that, The drain hole (101) is away from the tail end wall of the outer shell (10), and the upper edge of the drain hole (101) is flush with or slightly higher than the upper end wall of the sinking cavity (100).

7. The line sealing structure according to claim 6, characterized in that, The drainage hole (101) is any one of a circular hole, a waist-shaped hole, or a rectangular hole that horizontally penetrates the side wall of the sunken cavity (100).

8. The line sealing structure according to claim 6, characterized in that, The upper wall of the sinking cavity (100) is higher than the head end of the guide channel (11), and the drain hole (100) is higher than the guide channel (11).

9. The line sealing structure according to claim 1, characterized in that, The base (1) is an injection molded part. The base (1) has a rectangular recessed cavity (100) at its tail end. The middle section of the two guide support parts (11) is integrally connected to the upper cavity wall of the recessed cavity (100). The end hole of each receiving cavity (100) is fitted with an elastic interference sleeve and a sealing ring (2). The side wall of the tail end of the guide support part (11) is provided with a flow guide groove (111), and the upper end of the side wall of the recessed cavity (100) is provided with a drain hole (101).

10. A vehicle-end connector, characterized in that, include: The line sealing structure according to any one of claims 1 to 9.

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