Sealing protection structure of engine wire harness

Abstract

The utility model discloses a sealing protection structure of an engine wire harness. The sealing protection structure comprises a protection joint. The protection connector is closed in the circumferential direction, openings are formed in the two ends of the protection connector, a sealing sleeve connected with a metal plate in a clamped mode is arranged at one end of the protection connector in a clamped mode, and a wire harness channel for the engine wire harness to pass through is formed in the protection connector and the sealing sleeve in a penetrating mode. The sealing sleeve comprises a sealing section, a buffering section and a limiting section which are sequentially connected, the sealing section is cylindrical, a hole groove matched with the protection connector is formed in the side end of the sealing section, the buffering section is in a circular truncated cone shape, the hole diameter of the side, facing the sealing section, of the buffering section is gradually reduced, and the limiting section is located on the outer side of the metal plate. The utility model belongs to the technical field of wire harnesses, and particularly provides a wire harness used for solving the problems that in the prior art, the wire harness is not firm in fixation and easy to fall off, and the service life is affected due to poor wear resistance and no high temperature resistance.

Description

Technical Field

[0001] This utility model belongs to the field of wiring harness technology, specifically referring to a sealed and protective structure for an engine wiring harness. Background Technology

[0002] The engine wiring harness is a core component of a vehicle's electrical system, responsible for transmitting power and signals. However, inside the engine compartment, the wiring harness is constantly exposed to harsh environments such as high temperatures, oil, dust, and vibration, leading to the following problems:

[0003] 1. Since some wiring harnesses need to pass through sheet metal for routing, it's necessary to consider the protection of the harnesses and the sealing of the through-holes. Using rubber components to seal the wiring harness through-holes is a common practice. However, under vibration, the rubber components rub against the surrounding sheet metal and undergo minor, unpredictable displacement. Over time, this affects the lifespan of the rubber components, and they are prone to detachment, thus impacting the wiring harness's usability. 2. Friction between the wiring harness sheath and other components in the engine compartment, especially at the connectors, can easily cause wear. Furthermore, the high temperature inside the engine compartment causes ordinary materials to age prematurely, further affecting the wiring harness's lifespan. Utility Model Content

[0004] The technical problems to be solved by this utility model are the problems of loose fixing leading to easy detachment, poor wear resistance, and poor high temperature resistance affecting service life in the prior art.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model proposes a sealed and protective structure for engine wiring harnesses, including a protective connector;

[0007] The protective connector is circumferentially closed and has openings at both ends. One end of the protective connector is fitted with a sealing sleeve that engages with the sheet metal. The interior of the protective connector and the sealing sleeve is provided with a wiring harness channel for the engine wiring harness to pass through.

[0008] The sealing sleeve includes a sealing section, a buffer section, and a limiting section connected in sequence. The sealing section is cylindrical and has a slot on its side that matches the protective connector. The buffer section is frustum-shaped and has a gradually decreasing diameter on the side facing the sealing section. The limiting section is located on the outside of the sheet metal.

[0009] Preferably, the protective connector includes an integrally formed protective section and a snap-fit ​​section, the protective section and the snap-fit ​​section are combined in a convex shape, the small-diameter snap-fit ​​section is inserted into the groove of the sealing section, a positioning section is provided between the protective section and the snap-fit ​​section, and the positioning section and the protective section are located outside the sealing sleeve.

[0010] Preferably, the limiting segment has a symmetrical flat disc-shaped structure, with a through-hole in the small-diameter connecting part at its center, and a smooth arc transition at the outer edge. One end of the limiting segment is fixedly connected to the outer side of the buffer segment.

[0011] Preferably, the sealing sleeve is made of high-temperature resistant rubber material to ensure high-temperature resistance.

[0012] Preferably, the wire harness channel is arranged along the vertical central axis of the sealing sleeve and the protective connector.

[0013] Preferably, the outer side of the snap-fit ​​section is provided with a fixing member, which includes, but is not limited to, fixing structures such as nuts and cable ties.

[0014] The beneficial effects of this utility model by adopting the above structure are as follows:

[0015] 1. The use of a sealing sleeve, with the buffer section and sheet metal limiting the position, and the addition of a limiting section to prevent easy detachment, effectively prevents oil, dust and moisture from entering the wiring harness.

[0016] 2. By combining the sealing sleeve with the protective connector, the wire harness connector is protected, effectively reducing wear at the wire harness connection.

[0017] 3. High-temperature resistant materials are used to ensure the wiring harness operates stably in the engine compartment for extended periods. Additionally, the rubber material absorbs vibrations and impacts within the engine compartment, reducing damage to the wiring harness. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of a sealing and protective structure for an engine wiring harness provided by this utility model;

[0019] Figure 2 Another angle structural schematic diagram of a sealing and protective structure for an engine wiring harness provided by this utility model;

[0020] Figure 3 for Figure 2 Internal structural sectional view;

[0021] Figure 4 for Figure 1 Side view.

[0022] Among them, 1. Protective connector, 2. Sealing sleeve, 3. Wire harness channel, 4. Fixing component;

[0023] 11. Protective section; 12. Clip-on section; 13. Positioning section;

[0024] 21. Sealing section; 22. Buffer section; 23. Limiting section;

[0025] 201. Hole and groove.

[0026] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Example 1

[0031] refer to Figure 1 and Figure 2 As shown, the present invention proposes a sealing and protective structure for an engine wiring harness, including a protective connector 1. The protective connector 1 is circumferentially closed and has openings at both ends. The protective connector 1 includes an integrally formed protective section 11 and a snap-fit ​​section 12. The protective section 11 and the snap-fit ​​section 12 are combined in a convex shape. A positioning section 13 is provided between the protective section 11 and the snap-fit ​​section 12.

[0032] One end of the protective connector 1 is fitted with a sealing sleeve 2 that engages with the sheet metal. A wiring harness channel 3, through which the engine wiring harness passes, is provided between the protective connector 1 and the sealing sleeve 2. The wiring harness channel 3 is positioned along the vertical central axis of the sealing sleeve 2 and the protective connector 1. The combination of the sealing sleeve 2 and the protective connector 1 protects the wiring harness connector, effectively reducing wear at the wiring harness connection.

[0033] Among them, the protective section 11 can be provided with a cavity larger than the wire harness on the side near the snap-fit ​​section 12, so that the wire harness connector has a certain storage space.

[0034] refer to Figure 3 As shown, the sealing sleeve 2 includes a sealing section 21, a buffer section 22, and a limiting section 23 connected in sequence. The sealing section 21 is cylindrical and has a groove 201 on its side that matches the protective connector 1. The buffer section 22 is frustoconical and its diameter tapers towards the sealing section 21. The limiting section 23 is located on the outside of the sheet metal. The small-diameter snap-fit ​​section 12 is inserted into the groove 201 of the sealing section 21, and the positioning section 13 and the protective section 11 are located on the outside of the sealing sleeve 2.

[0035] In addition, a fixing member 4 is provided on the outer side of the snap-fit ​​section 12. The fixing member 4 includes, but is not limited to, fixing structures such as nuts and cable ties. The fixing member 4 is used to fix the outside of the protective section 11 and the sealing section 21, which serves to limit and fix the position. When using nuts for fixing, a gasket can be provided on the inner side to prevent slippage.

[0036] During assembly, after the wire harness passes through the wire harness channel 3, anti-slip tape is wrapped around the outside of the snap-fit ​​section 12. The snap-fit ​​section 12 of the protective connector 1 is inserted into the sealing section 21 of the sealing sleeve 2 to achieve a stable connection between the two. The buffer section 22 of the sealing sleeve 2 is used to snap onto the sheet metal. After the buffer section 22 and the sheet metal are limited, a limiting section 23 is added to prevent easy detachment and effectively prevent oil, dust and moisture from entering the wire harness.

[0037] like Figure 2 and Figure 4 As shown, the limiting segment 23 has a symmetrical flat disc-shaped structure. A through-hole is provided inside the small-diameter connecting portion at its center, and a smooth arc transition is adopted at the outer edge. One end of the limiting segment 23 is fixedly connected to the outer side of the buffer segment 22. The limiting segment 23 is made of rubber, which has a certain degree of elasticity and can be compressed and deformed.

[0038] As a preferred embodiment:

[0039] The sealing sleeve 2 is made of high-temperature resistant rubber to ensure high-temperature resistance. The use of high-temperature resistant materials ensures the wiring harness operates stably for extended periods within the engine compartment. Furthermore, the rubber material absorbs vibrations and impacts within the engine compartment, reducing damage to the wiring harness.

[0040] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sealing protection for an engine wiring harness comprising a protection connector (1), characterized in that: The protective joint (1) is circumferentially closed and has openings at both ends, one end of the protective joint (1) is clamped with a sealing sleeve (2) clamped with sheet metal, and the inside of the protective joint (1) and the sealing sleeve (2) is provided with a wire harness channel (3) for the engine wire harness to pass through; The sealing sleeve (2) comprises a sealing section (21), a buffer section (22) and a limiting section (23) connected in sequence, the sealing section (21) is cylindrically arranged and has a hole slot (201) at the side end matched with the protective joint (1), the buffer section (22) is arranged in a circular truncated cone shape and the hole diameter gradually decreases towards the side of the sealing section (21), and the limiting section (23) is located outside the sheet metal.

2. An engine harness seal guard structure according to claim 1, characterized by: The protective joint (1) comprises an integrally formed protective section (11) and a clamping section (12), the protective section (11) and the clamping section (12) are combined in a convex shape, the clamping section (12) with a small diameter is inserted into the hole slot (201) of the sealing section (21), a positioning section (13) is transitionally arranged between the protective section (11) and the clamping section (12), and the positioning section (13) and the protective section (11) are arranged outside the sealing sleeve (2).

3. An engine harness seal guard structure according to claim 2, characterized by: The limiting section (23) is a symmetrical flat disc structure, a wire hole is arranged in the center small diameter connecting part, a smooth arc transition is adopted at the outer edge, and one end of the limiting section (23) is fixedly connected with the outside of the buffer section (22).

4. The sealed harness protection structure of claim 1 or 3, wherein: The sealing sleeve (2) is made of rubber material.

5. The sealed harness protection structure of claim 1, wherein: The wire harness channel (3) is arranged along the vertical central axis direction of the sealing sleeve (2) and the protective joint (1).

6. The sealed harness protection structure of claim 2, wherein: A fixing member (4) is arranged on the outside of the clamping section (12).

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