Waterproof automobile wire harness structure

Abstract

The utility model discloses a waterproof automobile wire harness structure relates to automobile wire harness field, including wire harness, one end of wire harness is provided with male joint, the other end of wire harness is provided with female joint, male joint and female joint are connected through the mode of inserting, the left side of male joint is connected with sealing cylinder, the left side of sealing cylinder is provided with the insertion cylinder, the connection mode of insertion cylinder and female joint is interference fit, the outside of male joint is provided with annular groove, and the annular groove is provided with two sliding blocks, the outside of male joint is provided with connecting cylinder, and the connecting cylinder is connected with sliding block through bolt, the left side inner wall of connecting cylinder is provided with internal thread, the outside of female joint is provided with external thread, and the connecting cylinder is detachably connected with female joint through thread. The utility model passes through four stage sealing and promotes waterproof performance, and the thread is matched with sliding block and realizes convenient installation, is applicable to all kinds of waterproof automobile wire harness scene.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harnesses, and in particular to a waterproof automotive wiring harness structure. Background Technology

[0002] Automotive wiring harnesses are the main network of automotive circuits, responsible for transmitting electrical signals and power between various electronic components of the vehicle. Their working environment is complex, and they often face the problems of rain and moisture corrosion. In particular, if the sealing performance of the wiring harness connectors is not good, rainwater can easily seep into the interior, causing short circuits, electronic component failures, and even affecting the vehicle's driving safety. Existing automotive wiring harness connectors mostly use a single sealing ring or a simple plug-in structure, which has a low sealing level and is difficult to meet the requirements of harsh environments such as humidity and water immersion. Some connectors use interference fits to improve sealing performance, but interference fits require force to insert and remove, making the installation process laborious. After long-term use, the insertion and removal operations can easily damage the connector or sealing ring, further reducing the sealing performance.

[0003] Therefore, it is necessary to invent a waterproof automotive wiring harness structure to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof automotive wiring harness structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof automotive wiring harness structure, comprising a wiring harness, one end of which is provided with a male connector, and the other end of which is provided with a female connector. The male connector and the female connector are connected by a plug-in connection. A sealing cylinder is connected to the left side of the male connector, and a plug cylinder is provided to the left side of the sealing cylinder. The plug cylinder and the female connector are connected by an interference fit. An annular groove is provided on the outer side of the male connector, and two sliders are provided in the annular groove. A connecting cylinder is provided on the outer side of the male connector, and the connecting cylinder is connected to the sliders by bolts. An internal thread is provided on the left inner wall of the connecting cylinder, and an external thread is provided on the outer side of the female connector. The connecting cylinder and the female connector are detachably connected by threads.

[0006] Preferably, a first sealing groove is provided on the outer side of the sealing cylinder, and a first O-ring is provided in the first sealing groove, and a slot corresponding to the sealing cylinder is provided on the right side of the female connector.

[0007] Preferably, the male connector and the female connector are respectively connected to a first stationary ring and a second stationary ring on opposite sides.

[0008] Preferably, the surface of the insert is provided with a Morse taper, and the Morse taper is 1.5°.

[0009] Preferably, a second O-ring is provided in the annular groove, and a second sealing groove corresponding to the second O-ring is provided on the inner side of the slider.

[0010] Preferably, a rotating block is fixedly connected to the outer wall of the connecting cylinder, and the outer wall of the rotating block is provided with anti-slip texture.

[0011] The technical effects and advantages of this utility model are as follows: 1. Through a four-level sealing design, multiple waterproof lines are formed from the outside to the inside, with a waterproof rating of IP67, which can effectively resist rainwater and water vapor erosion and prevent short circuits.

[0012] 2. By combining the connecting cylinder, slider, and thread, the traditional interference fit is transformed into a rotating assembly, making installation easier. The rotating block has anti-slip texture, further improving ease of operation and making it suitable for installation in confined spaces. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 This is a schematic diagram of the male connector of this utility model; Figure 4 This utility model Figure 2 A magnified structural diagram of part A; Figure 5 This utility model Figure 2 A magnified structural diagram of part B.

[0014] In the diagram: 1. Wire harness; 2. Male connector; 3. Female connector; 4. Sealing cylinder; 5. Insert cylinder; 6. Annular groove; 7. Slider; 8. Connecting cylinder; 9. First sealing groove; 10. First O-ring seal; 11. Slot; 12. First stationary ring; 13. Second stationary ring; 14. Second O-ring seal; 15. Second sealing groove; 16. Rotating block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model provides, for example Figure 1-5The illustrated waterproof automotive wiring harness structure includes a wiring harness 1, with a male connector 2 at one end and a female connector 3 at the other end. The male connector 2 and female connector 3 are connected by a plug-in connection. A sealing cylinder 4 is connected to the left side of the male connector 2, and a plug cylinder 5 is located on the left side of the sealing cylinder 4. The plug cylinder 5 and the female connector 3 are connected by an interference fit, with the plug cylinder 5 and the internal insertion hole of the female connector 3 also being interference-fitted. The interference fit creates a tight seal, forming a fourth level of sealing as the last line of defense against moisture penetration, ensuring the dryness of the core conductive parts of the wiring harness 1 connector. An annular groove 6 is formed on the outer side of the male connector 2, and two... The slider 7 and the male connector 2 are provided with a connecting cylinder 8 on their outer side. The connecting cylinder 8 is connected to the slider 7 by bolts. The inner left wall of the connecting cylinder 8 is provided with internal threads, and the outer side of the female connector 3 is provided with external threads. The connecting cylinder 8 and the female connector 3 are detachably connected by threads. An interference fit requires a lot of force to insert and pull, which is inconvenient. However, by using the connecting cylinder 8, which is connected to the slider 7 in the annular groove 6 by bolts, and the connecting cylinder 8 and the female connector 3 are connected by threads, when the connecting cylinder 8 is rotated, the connecting cylinder 8 connects to the female connector 3 through the principle of threaded movement. In this process, the connecting cylinder 8 pulls the male connector 2 to insert into the female connector 3.

[0017] To solve the problem of laborious installation of traditional interference fits, this structure achieves convenient insertion through the connection of the connecting cylinder 8, the slider 7 and the threaded connection. The connecting cylinder 8 is fixed to the slider 7 in the annular groove 6 by bolts. The slider 7 can slide circumferentially along the annular groove 6 but cannot be axially disengaged. When the connecting cylinder 8 is rotated, the connecting cylinder 8 moves axially along the female connector 3 through the transmission action of the internal thread and the external thread of the female connector 3. At the same time, it drives the slider 7 to slide along the annular groove 6, and the slider 7 pulls the male connector 2 towards the female connector 3, so that the male connector 2 and the female connector 3 are slowly inserted without the need for forceful insertion and removal.

[0018] A first sealing groove 9 is provided on the outer side of the sealing cylinder 4, and a first O-ring 10 is provided in the first sealing groove 9. A slot 11 corresponding to the sealing cylinder 4 is provided on the right side of the female connector 3. By fitting the first O-ring 10 into the first sealing groove 9 on the outer side of the sealing cylinder 4, when the male connector 2 and the female connector 3 are connected, the sealing cylinder 4 is inserted into the slot 11. The inner wall of the slot 11 squeezes the first O-ring 10, so that it fits tightly against the outer wall of the sealing cylinder 4 and the inner wall of the slot 11, forming a third-level seal, which greatly improves the sealing performance of the middle part of the connector.

[0019] The male connector 2 and the female connector 3 are respectively connected to the first stationary ring 12 and the second stationary ring 13 on opposite sides. Both the first stationary ring 12 and the second stationary ring 13 are made of nitrile rubber. When the male connector 2 and the female connector 3 are inserted, the first stationary ring 12 and the second stationary ring 13 fit tightly together to form a second-level seal, which further prevents water vapor from penetrating into the interior of the connector.

[0020] The surface of the insert 5 is provided with a Morse taper of 1.5°. The interference fit between the diameter of the insert 5 and the diameter of the female connector 3 is 0.05-0.1 mm, ensuring the sealing and assemblability of the interference fit connection.

[0021] A second O-ring seal 14 is provided in the annular groove 6, and a second sealing groove 15 corresponding to the second O-ring seal 14 is opened on the inner side of the slider 7. The first-level seal is formed by the fit and sealing of the second O-ring seal 14 and the sealing of the thread, which prevents external moisture from seeping in from the gap between the connecting cylinder 8 and the male connector 2 and the female connector 3.

[0022] A rotating block 16 is fixedly connected to the outer wall of the connecting cylinder 8. The outer wall of the rotating block 16 is provided with anti-slip texture. By rotating the rotating block 16, the connecting cylinder 8 can be easily rotated.

[0023] The working principle of this utility model is as follows: The first O-ring 10 is embedded in the first sealing groove 9 of the sealing cylinder 4, and the second O-ring 14 is embedded in the annular groove 6 of the male connector 2. The connecting cylinder 8 is fitted onto the male connector 2, and the slider 7 is aligned with the annular groove 6. The slider 7 is fixed to the connecting cylinder 8 by bolts. The rotating block 16 is held by hand, and the insertion cylinder 5 of the male connector 2 is aligned with the insertion hole of the female connector 3. The connecting cylinder 8 is rotated, and the connecting cylinder 8 moves towards the female connector 3 through the cooperation of the internal and external threads. At the same time, the male connector 2 is pulled to insert into the female connector 3 until the first stationary ring 12 and the second stationary ring 13 are completely fitted.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof automotive wiring harness structure, comprising a wiring harness, wherein one end of the wiring harness is provided with a male connector and the other end of the wiring harness is provided with a female connector, the male connector and the female connector being connected by a plug-in method, characterized in that: A sealing cylinder is connected to the left side of the male connector, and an insert is provided on the left side of the sealing cylinder. The insert and the female connector are connected by an interference fit. An annular groove is provided on the outer side of the male connector, and two sliders are provided in the annular groove. A connecting cylinder is provided on the outer side of the male connector. The connecting cylinder is connected to the sliders by bolts. The inner left wall of the connecting cylinder is provided with internal threads, and the outer side of the female connector is provided with external threads. The connecting cylinder and the female connector are detachably connected by threads.

2. The waterproof automotive wiring harness structure according to claim 1, characterized in that: The outer side of the sealing cylinder is provided with a first sealing groove, and a first O-ring is provided in the first sealing groove. The right side of the female connector is provided with a slot corresponding to the sealing cylinder.

3. The waterproof automotive wiring harness structure according to claim 1, characterized in that: The male and female connectors are respectively connected to a first stationary ring and a second stationary ring on opposite sides.

4. The waterproof automotive wiring harness structure according to claim 1, characterized in that: The surface of the insert is provided with a Morse taper, and the Morse taper is 1.5°.

5. A waterproof automotive wiring harness structure according to claim 1, characterized in that: A second O-ring is provided in the annular groove, and a second sealing groove corresponding to the second O-ring is opened on the inner side of the slider.

6. The waterproof automotive wiring harness structure according to claim 1, characterized in that: A rotating block is fixedly connected to the outer wall of the connecting cylinder, and the outer wall of the rotating block is provided with anti-slip texture.

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