Automobile front door wire harness rubber sheath structure

Abstract

The utility model discloses an automobile front door wire harness rubber sheath structure, which relates to the technical field of wire harness sheath structures, and comprises a sheath, two ends of the sheath are provided with openings, a cavity is arranged in the sheath, an outer edge part is arranged on the outer side of the sheath, the outer edge part and the sheath are integrally formed, two ends of the outer edge part are provided with thread parts, the thread parts are convex thread lines, and the thread lines are provided with threads. The automobile front door wire harness rubber sheath structure comprises a sheath, the sheath is sleeved with two limiting sleeves arranged at an interval, the limiting sleeves are arranged outside the threaded part in a sleeving mode and are in threaded connection with the threaded part, and the two ends of the sheath communicate with each other and are fixedly provided with sheath pipes. The problem of poor electrical connection or short circuit caused by looseness of the wire harness can be reduced through stable fixation, the lubricating medium is arranged in the sheath and can form a layer of lubricating film between the sheath and the wire harness, direct contact and friction between the sheath and the wire harness are effectively reduced, and therefore the abrasion process is slowed down.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness sheath structures, in particular to a rubber sheath structure for a wire harness of an automobile front door. Background Art

[0002] The rubber sheath structure of the automobile front door wiring harness, as an important cable protection component, effectively protects wires and cables from mechanical damage, wear, corrosion and external environment (such as moisture, oil, chemicals, etc.), to ensure the safe, stable and efficient operation of wires, cables and their connectors.

[0003] For example, the existing sheath and wiring harness with publication number CN104917125A specifically discloses that in the sheath for wiring harness, the increase in weight and cost can be suppressed as much as possible, and it is difficult to separate from the plate. In the sheath, the small-diameter cylindrical portion is connected to the connecting portion, and can be bundled together with the components passing through the inner side at the end. The large-diameter cylindrical portion has an inclined reduced diameter portion formed to extend obliquely inward from the portion connected to the connecting portion within the entire circumference. The small-diameter cylindrical portion has a portion opposite to the inclined reduced diameter portion and protruding more than other portions, namely, a deformation limiting portion. The deformation limiting portion limits the deformation range of the inclined reduced diameter portion toward the inner side.

[0004] The existing rubber sheath structure of the automobile front door wiring harness cannot be easily fixed to the vehicle body, and the fixing effect is unstable. If the rubber sheath is not firmly fixed, it may cause the wiring harness to loosen, thereby causing poor electrical connection or short circuit, increasing the risk of vehicle electrical system failure, such as light outage, signal failure, etc., which directly affects driving safety. For this reason, we propose a rubber sheath structure for the automobile front door wiring harness. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a rubber sheath structure for a wiring harness of an automobile front door, which solves the problems raised by the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A rubber sheath structure for a car front door wiring harness, comprising: a sheath, the sheath having openings at both ends, a cavity provided inside the sheath, an outer edge portion provided on the outside of the sheath, the outer edge portion and the sheath being integrally formed, a threaded portion provided at both ends of the outer edge portion, the threaded portion being a raised thread line, two spaced-apart limit sleeves provided on the outer sheath, the limit sleeves being arranged outside the threaded portion and threadedly connected to the threaded portion.

[0007] Both ends of the sheath are connected and fixedly installed with sheath tubes, and a corrugated structure is provided on one end of the sheath facing the sheath. The sheath tube includes an outer protective layer, and the outer protective layer is provided on the outermost layer of the sheath tube. An insulating layer is provided inside the outer protective layer, and a fire-resistant layer is provided inside the insulating layer. The outer protective layer is wrapped outside the insulating layer, and the insulating layer is wrapped outside the fire-resistant layer. A flame-retardant filling layer is provided inside the fire-resistant layer, and the fire-resistant layer is wrapped outside the flame-retardant filling layer.

[0008] As a further technical solution of the present invention, anti-slip washers are provided on opposite sides of the two limiting sleeves, and the anti-slip washers are fixedly connected to the limiting sleeves and sleeved outside the outer edge portion.

[0009] As a further technical solution of the present invention, the flame retardant filling layer is a mineral filler, and the outer protective layer is composed of a combination of polytetrafluoroethylene, Kevlar fiber and silicone rubber elastomer.

[0010] As a further technical solution of the present invention, multiple groups of reinforcement structures distributed in a circular array are arranged in the outer protective layer, and the reinforcement structure includes two reinforcement parts. The reinforcement parts are arranged in the outer protective layer, and the opposite ends of the two reinforcement parts are connected together, and the other ends of the two reinforcement parts are connected to the inner side of the outer protective layer.

[0011] As a further technical solution of the present invention, a water-absorbing filler is provided in the inner cavity of the sheath, and the water-absorbing filler is annular and wrapped around the outer wiring harness.

[0012] As a further technical solution of the present invention, a plurality of through-holes are provided at both ends of the sheath, the through-holes extend into the interior of the sheath, sealing plugs are provided in the through-holes, and the sheath is filled with a lubricating medium.

[0013] The utility model provides a rubber sheath structure for automobile front door wiring harness, which has the following beneficial effects compared with the prior art:

[0014] This design features a rubber sheath for automotive front door wiring harnesses. Two side retaining sleeves secure the sheath to the vehicle body. This stable fixation reduces the risk of poor electrical connections or short circuits caused by loose wiring harnesses, thereby lowering the risk of electrical system failure and ensuring driving safety. A lubricant is incorporated into the sheath, forming a lubricating film between the sheath and wiring harness, effectively reducing direct contact and friction between the two, thereby slowing wear.

[0015] This design features a rubber sheath structure for automotive front door wiring harnesses. This outer protective layer protects the wiring harness's internal structure from damage by resisting mechanical damage, shearing, and pulling forces. The insulation layer prevents leakage of current from the wiring harness, ensuring that current flows only within the harness, thus protecting the harness and the surrounding environment. The fire-resistant layer maintains a certain degree of stability under high temperatures or fire conditions, preventing the harness from rapidly burning and buying time for fire rescue and evacuation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a rubber sheath structure for a car front door wiring harness;

[0017] Figure 2 This is a cross-sectional view of a rubber sheath structure for a car front door wiring harness;

[0018] Figure 3 The figure is a cross-sectional schematic diagram of a sheath tube of a rubber sheath structure for a car front door wiring harness.

[0019] In the figure: sheath 1, outer edge 2, threaded portion 3, limiting sleeve 4, sheath tube 5, outer protective layer 501, insulating layer 502, fire-resistant layer 503, flame retardant filling layer 504, reinforcement 505, corrugated structure 6, water-absorbing filler 7, perforation 8, sealing plug 9, lubricating medium 10. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-3The utility model provides a technical solution for the rubber sheath structure of the wiring harness of the front door of an automobile: a rubber sheath structure of the wiring harness of the front door of an automobile, comprising: a sheath 1, with openings at both ends of the sheath 1, a cavity being provided inside the sheath 1, an outer edge portion 2 being provided on the outside of the sheath 1, the outer edge portion 2 being integrally formed with the sheath 1, a threaded portion 3 being provided at both ends of the outer edge portion 2, the threaded portion 3 being a raised thread line, two spaced-apart limit sleeves 4 being provided on the outer shell of the sheath 1, the limit sleeves 4 being sleeved on the outside of the threaded portion 3 and being threadedly connected with the threaded portion 3. Both ends of the sheath 1 are connected and fixedly installed with a sheath tube 5. A corrugated structure 6 is provided at one end of the sheath tube 5 facing the sheath 1. The sheath tube 5 includes an outer protective layer 501, and the outer protective layer 501 is arranged at the outermost layer of the sheath tube 5. An insulating layer 502 is arranged inside the outer protective layer 501, and a fire-resistant layer 503 is arranged inside the insulating layer 502. The outer protective layer 501 is wrapped around the outside of the insulating layer 502, and the insulating layer 502 is wrapped around the outside of the fire-resistant layer 503. A flame-retardant filling layer 504 is provided inside the fire-resistant layer 503, and the fire-resistant layer 503 is wrapped around the outside of the flame-retardant filling layer 504.

[0022] Among them, such as Figure 2 and Figure 3 As shown, anti-slip washers are provided on opposite sides of the two limiting sleeves 4, and the anti-slip washers are fixedly connected to the limiting sleeves 4 and sleeved on the outside of the outer edge 2. The flame retardant filling layer 504 is a mineral filler, and the outer protective layer 501 is composed of polytetrafluoroethylene, Kevlar fiber and silicone rubber elastomer. A plurality of groups of reinforcing structures distributed in a circular array are provided in the outer protective layer 501, and the reinforcing structure includes two reinforcing parts 505, and the reinforcing parts 505 are provided in the outer protective layer 501. The opposite ends of the two reinforcing parts 505 are connected together, and the other ends of the two reinforcing parts 505 are connected to the inner side of the outer protective layer 501. A water-absorbing filler 7 is provided in the internal cavity of the sheath 1. The water-absorbing filler 7 is annular and wrapped around the outside of the external wiring harness. A plurality of perforations 8 are provided at both ends of the sheath 1, and the perforations 8 extend to the inside of the sheath 1. A sealing plug 9 is provided in the perforation 8, and the sheath 1 is filled with a lubricating medium 10.

[0023] The working principle of the present invention is as follows: by passing the sheath 1 through the vehicle body, the limiting sleeves 4 on both sides of the vehicle body are rotated to squeeze the limiting sleeves 4 against the vehicle body, and the sheath 1 is fixed to the vehicle body by the limiting sleeves 4 on both sides. Stable fixation can reduce the problem of poor electrical connection or short circuit caused by loose wiring harness, thereby reducing the risk of vehicle electrical system failure and ensuring driving safety. By providing a lubricating medium 10 within the sheath 1, the lubricating medium can form a lubricating film between the sheath 1 and the wiring harness, effectively reducing direct contact and friction between the two, thereby slowing the wear process, allowing both the sheath and the wiring harness to remain in good condition for a longer period of time, extending their service life and reducing the frequency and cost of replacement.

[0024] By providing an outer protective layer 501 to resist external forces such as mechanical damage, shearing or pulling, the internal structure of the wiring harness is protected from damage. The main function of the insulating layer 502 is to prevent the wiring harness current from leaking to the outside and ensure that the current only flows inside the wiring harness, thereby protecting the safety of the wiring harness and the surrounding environment. The fire-resistant layer 503 can maintain a certain stability under high temperature or fire conditions, prevent the wiring harness from burning rapidly, and buy time for fire rescue and personnel evacuation. The flame-retardant filling layer 504 forms a flame-retardant barrier. When attacked by flames, it can effectively prevent the flame from spreading inward, thereby improving the flame retardant level of the wiring harness. The reinforcement part 505 is provided to improve the overall compressive resistance of the sheath tube 5.

[0025] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A rubber sheath structure for a car front door wiring harness, characterized in that: include: A sheath (1), wherein both ends of the sheath (1) are open, a cavity is provided inside the sheath (1), an outer edge portion (2) is provided on the outside of the sheath (1), the outer edge portion (2) and the sheath (1) are integrally formed, a threaded portion (3) is provided at both ends of the outer edge portion (2), the threaded portion (3) is a raised thread line, and the outer cover of the sheath (1) is provided with two spaced limiting sleeves (4), the limiting sleeves (4) are sleeved outside the threaded portion (3) and are threadedly connected to the threaded portion (3); Both ends of the sheath (1) are connected and fixedly mounted with a sheath tube (5); a corrugated structure (6) is provided on one end of the sheath tube (5) facing the sheath (1); the sheath tube (5) comprises an outer protective layer (501); the outer protective layer (501) is provided as the outermost layer of the sheath tube (5); an insulating layer (502) is provided inside the outer protective layer (501); a fire-resistant layer (503) is provided inside the insulating layer (502); the outer protective layer (501) is wrapped around the insulating layer (502); the insulating layer (502) is wrapped around the fire-resistant layer (503); a flame-retardant filling layer (504) is provided inside the fire-resistant layer (503); and the fire-resistant layer (503) is wrapped around the flame-retardant filling layer (504).

2. The automobile front door wiring harness rubber sheath structure according to claim 1, characterized in that: Anti-slip washers are provided on opposite sides of the two limiting sleeves (4), and the anti-slip washers are fixedly connected to the limiting sleeves (4) and sleeved outside the outer edge portion (2).

3. The automobile front door wiring harness rubber sheath structure according to claim 2, characterized in that: The flame retardant filling layer (504) is a mineral filler, and the outer protective layer (501) is composed of a combination of polytetrafluoroethylene, Kevlar fiber, and silicone rubber elastomer.

4. The automobile front door wiring harness rubber sheath structure according to claim 3, characterized in that: A plurality of reinforcement structures distributed in a circumferential array are provided in the outer protective layer (501), the reinforcement structure comprising two reinforcement parts (505), the reinforcement parts (505) being provided in the outer protective layer (501), the opposite ends of the two reinforcement parts (505) being connected together, and the other ends of the two reinforcement parts (505) being connected to the inner side of the outer protective layer (501).

5. The automobile front door wiring harness rubber sheath structure according to claim 4, characterized in that: A water-absorbing filler (7) is provided in the inner cavity of the sheath (1); the water-absorbing filler (7) is annular and wrapped around the outer wire harness.

6. The automobile front door wiring harness rubber sheath structure according to claim 5, characterized in that: A plurality of through-holes (8) are provided at both ends of the sheath (1), the through-holes (8) extending into the interior of the sheath (1), sealing plugs (9) are provided in the through-holes (8), and the sheath (1) is filled with a lubricating medium (10).

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