A camera wiring harness assembly for a vehicle

Abstract

The application discloses a kind of vehicle camera wire harness assembly, the wire harness assembly includes composite wire, plug, sealing assembly, rubber plug and plug-in terminal, composite wire both ends are connected plug and plug-in terminal, rubber plug is set on wire, each connection is sealed using double-wall pipe heat shrinkage.The composite wire adopts the structure of twisted multiple insulated wires, and is covered with wear-resistant and temperature-resistant polyvinyl chloride protective layer;The plug is designed to prevent mistakes, with built-in metal contact;The rubber plug has elastic flange and intercepting groove, which realizes the close fit of the mounting hole;In particular, the wire harness is detachably covered with a wire harness tape having an armor layer and a medium cavity, the medium cavity is filled with self-repairing silicone rubber and oily rodent repellent, and the common side wall uses an environmentally responsive embrittlement material.When the wire harness is damaged, the side wall breaks to trigger the repair and rodent repellent mechanism, achieving active protection.The application has excellent sealing, rodent bite resistance and self-repairing performance, and is suitable for vehicle-mounted camera signal transmission in complex environments.

Description

Technical Field

[0001] This invention relates to the field of automotive electronic components technology, specifically to a vehicle camera wiring harness assembly. Background Technology

[0002] With the rapid development of new energy vehicles and intelligent driving technologies, the stability and durability of signal transmission from vehicle cameras, as core components of visual perception, are crucial. However, existing camera wiring harness assemblies still have many shortcomings in practical applications. Traditional wiring harnesses often use ordinary PVC sheaths, which are prone to insufficient wear resistance and performance degradation at high and low temperatures, leading to cracking, in harsh environments such as engine compartments or chassis. Simultaneously, the sealing at the connection between the plug and the wiring harness often relies on a single adhesive or simple plug, which is susceptible to seal failure due to vibration after long-term use, allowing moisture intrusion and short circuits. Furthermore, in outdoor wiring environments, wiring harnesses are often subjected to rodent chewing, resulting in insulation damage, exposed core wires, signal interruption, and even the risk of vehicle fire. Although some products employ metal armor or rodent-repellent coatings, these often result in increased weight, reduced flexibility, or rapid evaporation and failure of the coating. Therefore, there is an urgent need to develop a vehicle camera wiring harness assembly that combines high-reliability sealing, self-healing damage prevention, and long-lasting rodent repellency to meet the demands of complex operating conditions. Summary of the Invention

[0003] In view of the prior art, the purpose of this invention is to provide a vehicle camera power supply model connection harness assembly that achieves armored chemical rodent and ant repellency through an external casing, and can also self-heal to extend its service life after damage occurs.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a vehicle camera wiring harness assembly, the wiring harness including a composite wire, a plug, a sealing component, a rubber plug and a plug terminal, the two ends of the composite wire are respectively connected to the plug and the plug terminal, the rubber plug is sleeved on the composite wire, and a double-wall tube is also provided at the connection of each component to seal the gaps.

[0005] The composite wire is made of multiple insulated wires twisted together, and the outer layer is wrapped with a wear-resistant and high and low temperature resistant polyvinyl chloride sheath.

[0006] The plug features a foolproof design, with its outer shell made of high-strength engineering plastic injection molding and internal metal contacts that match the plug terminals.

[0007] The sealing assembly includes a sealing ring disposed on the plug, the sealing ring being made of oil-resistant rubber;

[0008] The rubber plug is an elastic rubber body with a through hole in the center that matches the outer diameter of the composite wire. When the wire harness passes through the rubber plug, the rubber plug can fit tightly against the surface of the composite wire and the mounting hole.

[0009] The plug-in terminal is used to connect to the corresponding interface of the camera or vehicle host;

[0010] The double-walled tube is heat-shrinkable. After heating, the outer wall layer can shrink tightly, while the inner wall layer melts, effectively sealing the gaps at the joints of various components. After the inner wall layer cools and solidifies, it reinforces the joints.

[0011] As a further feature of the above solution, the rubber stopper includes a stopper sleeve, an integrated baffle, and a locking part, wherein the locking part is provided with an elastic buckle and an intercepting groove.

[0012] As a further feature of the above solution, the elastic buckle includes a guide slope, an outward-turned ring edge, and an inner ring edge, wherein the outward-turned ring edge and the inner ring edge form a buckle groove for fitting into the inner wall of the mounting hole.

[0013] As a further provision of the above scheme, the outer layer of the composite wire can also be detachably covered with a wire harness wrapping tape. The inner layer of the wire harness wrapping tape is provided with a sponge pad layer, the middle layer is provided with an armor layer, and a soft adhesive layer is provided on the outer layer of the armor layer. A medium cavity is provided on the inner side of the soft adhesive layer near the armor layer, and the medium cavities are filled with a soft adhesive layer.

[0014] As a further provision of the above scheme, the armor layer is a thin metal sheet that extends spirally over the sponge pad layer, and soft rubber fillers are arranged between the media cavities in an axially stacked manner outside the armor layer.

[0015] As a further provision of the above scheme, the media cavity includes a healing cavity filled with self-healing silicone rubber and a chemical agent cavity, wherein the common sidewall of the healing cavity and the chemical agent cavity is made of an environmentally responsive embrittlement material.

[0016] As a further provision of the above scheme, the environmentally responsive embrittlement material is selected from one of the following: oxidatively degradable rubber containing unsaturated double bonds, hygroscopic and swelling polymer film, or hydrolyzable polyester film; the environmentally responsive embrittlement material remains chemically inert when not in contact with air to isolate the oily rodent repellent (peppermint oil, capsaicin oil, camphor oil, etc.) in the chemical agent cavity; after the chemical agent cavity is broken and exposed to air, it becomes embrittled, swollen, or disintegrates due to oxidation or moisture; and breaks under external extrusion or internal stress to connect the healing cavity with the damaged area.

[0017] Beneficial Effects: This invention significantly improves the sealing reliability of the wiring harness under high and low temperature and vibration environments by setting up a composite wire and a double-walled tube heat-shrink sealing structure; the use of elastic rubber plugs combined with the clamping part and interception groove design effectively prevents loose installation and moisture infiltration; the introduction of a detachable wiring harness wrapping tape with an integrated spiral armor layer provides mechanical protection, while the medium cavity is filled with self-healing silicone rubber and oily rodent repellent, and an environmentally responsive embrittlement material realizes a "damage-response" intelligent protection mechanism—when the outer layer of the wiring harness is damaged, the embrittlement material rapidly disintegrates upon contact with air, releasing the rodent repellent to form an odor barrier, while the self-healing silicone rubber flows out to seal the damaged area and prevent further damage. The overall structure combines high sealing performance, rodent resistance, self-healing, and easy maintenance, greatly extending the service life of the wiring harness and improving the operational stability of the vehicle camera system. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automotive camera wiring harness assembly structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the rubber stopper of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the wire harness wrapping tape of the present invention.

[0021] Reference numerals: 1. Composite wire; 2. Plug; 3. Sealing assembly; 4. Rubber plug; 41. Plug sleeve; 42. Integrated baffle; 43. Clip-on part; 44. Elastic snap-on edge; 441. Guide slope; 442. Outwardly flared ring edge; 443. Inner ring edge; 444. Snap-on groove; 45. Interception groove; 5. Insert terminal; 6. Double-walled tube; 8. Wire harness wrapping tape; 81. Sponge pad layer; 82. Armor layer; 83. Medium cavity; 84. Soft rubber layer; 85. Self-healing silicone rubber; 86. Chemical agent cavity; 87. Healing cavity; 9. Mounting hole. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0023] like Figure 1-3 The image shows a vehicle camera wiring harness assembly, which includes a composite wire 1, a plug 2, a sealing component 3, a rubber plug 4, and a plug terminal 5. The two ends of the composite wire 1 are respectively connected to the plug 2 and the plug terminal 5. The rubber plug 4 is sleeved on the composite wire 1. A double-wall tube 6 is also provided at the connection points of each component to seal the gaps.

[0024] The composite wire 1 is composed of multiple insulated wires of different colors twisted together, and is covered with a wear-resistant and high / low temperature resistant polyvinyl chloride sheath to ensure that the wiring harness has good mechanical and electrical insulation properties in the complex environment of the vehicle. The plug 2 adopts a foolproof design. Its shell is injection molded from high-strength engineering plastic, and its interior has metal contacts that match the plug terminal 5. The surface of the contacts is gold-plated to reduce contact resistance and improve conductivity and oxidation resistance.

[0025] The sealing assembly 3 includes a sealing ring disposed at the connection between the plug 2 and the composite wire 1. The sealing ring is made of oil-resistant rubber material, which can effectively prevent water, dust and other impurities from entering the interior and ensure the reliability of the circuit connection.

[0026] The rubber plug 4 is an elastic rubber body with a through hole in the center that matches the outer diameter of the composite wire 1. When the wire harness passes through the rubber plug 4, the rubber plug 4 can fit tightly against the surface of the composite wire 1 and the mounting hole, further enhancing the overall sealing effect.

[0027] The plug-in terminal 5 is used to connect to the corresponding interface of the camera or vehicle host. Its structural design conforms to relevant industry standards, ensuring smooth plugging and unplugging and stable connection.

[0028] The double-walled tube 6 is heat-shrinkable, which can shrink and melt tightly after heating. It not only effectively seals the gaps at the joints of various components, but also reinforces the joints to prevent the wire harness from loosening or being damaged due to vehicle vibration or other reasons. The double-walled tube 6 is also used to wrap and shrink the two ends of the wire harness wrapping tape 8 for fixation.

[0029] Preferably, the rubber stopper 4 provided in this invention includes a stopper sleeve 41, an integrated baffle 42, and a locking part 43. The locking part 43 is provided with an elastic buckle 44 and an intercepting groove 45. The elastic buckle 44 includes a guide slope 441, an outwardly turned ring edge 442, and an inner ring edge 443. The outwardly turned ring edge 442 and the inner ring edge 443 form a buckle groove 444 for fitting into the inner wall of the mounting hole 9.

[0030] Preferably, the outer layer of the composite wire 1 in this embodiment can also be detachably covered with a wire harness wrapping tape 8. The inner layer of the wire harness wrapping tape 8 is provided with a sponge pad layer 81, the middle layer is provided with an armor layer 82, a soft adhesive layer 84 is provided on the outer layer of the armor layer 82, and a medium cavity 83 is provided on the inner side of the soft adhesive layer 84 near the armor layer 82, and the medium cavities 83 are filled with the soft adhesive layer 84.

[0031] Preferably, the armor layer 82 is a spirally extended metal sheet covering the sponge pad layer 81, and soft rubber fillers are arranged in an axially stacked manner outside the armor layer 82 between the media cavities 83. The media cavities 83 include a healing cavity 87 filled with self-healing silicone rubber 85 and a chemical agent cavity 86. The common sidewall of the healing cavity 87 and the chemical agent cavity 86 is made of an environmentally responsive embrittlement material.

[0032] Preferably, the environmentally responsive embrittlement material used in this invention is selected from one of the following: oxidatively degradable rubber containing unsaturated double bonds, hygroscopic and swelling polymer film, or hydrolyzable polyester film. The environmentally responsive embrittlement material remains chemically inert when not in contact with air to isolate the oily rodent repellent (peppermint oil, capsaicin oil, camphor oil, etc.) in the chemical agent cavity 86. After the chemical agent cavity 86 is broken and exposed to air, it becomes embrittled, swollen, or disintegrates due to oxidation or moisture. Under external extrusion or internal stress, it breaks to connect the healing cavity 87 with the damaged area.

[0033] Referring to the above structural setup, when the outer soft rubber layer 84 of the wire harness wrapping tape 8 is damaged by external force, causing the healing cavity 87 to rupture, the self-healing silicone rubber 85 filled inside will quickly flow out. After contact with air, the self-healing silicone rubber 85 will begin to undergo a cross-linking reaction within 3-5 minutes and will be completely cured within 1-2 hours, thereby forming a sealed rubber film at the damaged area to prevent moisture, dust and other impurities from entering the wire harness.

[0034] The chemical agent cavity 86 is filled with an oily rodent repellent. When a rat bites and damages the outer soft adhesive layer 84, the chemical agent cavity 86 is damaged, and the rodent repellent inside will also take effect to drive it away. At the same time, the damaged chemical agent cavity 86 and the healing cavity 87 share a side wall based on a special material structure, which can be exposed to air to create a connection between the chemical agent cavity 86 and the healing cavity 87. One of them allows the rodent repellent to take effect, and after a delay, the self-healing silicone rubber 85 in the healing cavity 87 will seal the rupture.

[0035] Furthermore, the self-healing silicone rubber 85 itself has a certain irritant effect and a partial rodent-repelling ability. Therefore, even if only the healing cavity 87 is ruptured, the self-healing silicone rubber 85 blocking the common sidewall can still play a certain rodent-repelling role.

[0036] An embodiment based on the above scheme: The media chamber 83 includes a healing chamber 87 with a volume of 0.8 mL and a chemical agent chamber 86 with a volume of 0.5 mL. They share a common sidewall made of a moisture-absorbing, swelling polyvinyl alcohol film with a thickness of 0.05 mm. The healing chamber is filled with a two-component self-healing silicone rubber (A / B mass ratio 10:1). The chemical agent chamber is encapsulated with a mixture of capsaicin oil and peppermint oil rodent repellent (volume ratio 3:1). When the outer sheath of the harness is damaged, moisture enters, causing the sidewall film to swell and rupture within 30 seconds. The rodent repellent evaporates, forming a repellency zone with a radius of 1 m. Simultaneously, the silicone rubber flows out and solidifies within 10 minutes, completing the self-repair of the damaged area. In this embodiment, all materials comply with RoHS environmental standards, the entire line passes the IP67 waterproof test, and after a rodent gnawing test (referring to GB / T 2423.52), no obvious bite marks were found within 7 days, demonstrating excellent comprehensive protective performance.

[0037] Preferably, the sponge pad 81 is made of high-density closed-cell sponge material with a thickness of 0.5-1mm. It has good cushioning and shock absorption performance and can effectively absorb the vibration generated during vehicle operation, thus preventing the composite wire 1 from breaking internal wires or wearing of insulation due to long-term vibration.

[0038] Preferably, the metal sheet used in the armor layer 82 is a stainless steel strip with a thickness of 0.1-0.2mm. Through a precise spiral winding process, the edges of adjacent metal sheets overlap to form a continuous and rigid tubular structure. This structure can not only resist the puncture of external sharp objects, but also resist the tensile and torsional forces on the wire harness to a certain extent, protecting the structural integrity of the internal composite wire 1.

[0039] Preferably, the media cavities 83 are made of aging-resistant nitrile rubber and are arranged in a ring array on the outside of the armor layer 82. The volume of each media cavity 83 is about 0.5-1.5ml. The soft rubber filling material between the cavities is silicone rubber with a Shore hardness of 30-40. This filling method not only ensures the independent working space of the media cavities 83, but also enhances the overall flexibility of the wire harness wrapping 8.

[0040] As a further feature of the above scheme, the wrapping length of the double-walled tube 6 to both ends of the wire harness wrapping tape 8 is not less than 20mm. After heating and shrinking, the hot melt adhesive on the inner wall layer of the double-walled tube 6 will melt, and the outer wall layer will shrink and squeeze, causing the hot melt adhesive to be pressed into the soft adhesive layer 84 covering the wire harness wrapping tape 8 and the polyvinyl chloride sheath of the composite wire 1 and tightly bonded, forming a firm and sealed transition connection, effectively preventing the wire harness wrapping tape 8 from loosening or shifting during use.

[0041] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A vehicle camera wiring harness assembly, characterized in that: The wiring harness includes a composite wire (1), a plug (2), a sealing component (3), a rubber plug (4), and a plug terminal (5). The two ends of the composite wire (1) are connected to the plug (2) and the plug terminal (5) respectively. The rubber plug (4) is fitted onto the composite wire (1). A double-walled tube (6) is also provided at the connection of each component to seal the gap. The composite wire (1) is made of multiple insulated wires twisted together and is wrapped with a wear-resistant and high-low temperature resistant polyvinyl chloride sheath. The plug (2) adopts a foolproof design. Its outer shell is made of high-strength engineering plastic injection molding and has metal contacts that match the plug terminal (5) inside. The sealing assembly (3) includes a sealing ring set on the plug (2), which is made of oil-resistant rubber; the rubber plug (4) is an elastic rubber body with a through hole in the center that matches the outer diameter of the composite wire (1). When the wire harness passes through the rubber plug (4), the rubber plug (4) can fit tightly against the surface of the composite wire (1) and the mounting hole; the plug terminal (5) is used to connect to the corresponding interface of the camera or vehicle host; the double wall tube (6) is heat-shrinkable. After heating, the outer wall layer can shrink tightly and the inner wall layer melts, which can effectively seal the gaps at the connection of each component. After the inner wall layer cools and solidifies, it reinforces the connection.

2. The automotive camera wiring harness assembly according to claim 1, characterized in that: The rubber stopper (4) includes a stopper sleeve (41), an integrated baffle (42), and a locking part (43). The locking part (43) is provided with an elastic buckle (44) and an intercepting groove (45).

3. The automotive camera wiring harness assembly according to claim 2, characterized in that: The elastic buckle (44) includes a guide slope (441), an outward-turned ring edge (442), and an inner ring edge (443). The outward-turned ring edge (442) and the inner ring edge (443) form a buckle groove (444) for fitting into the inner wall of the mounting hole (9).

4. The automotive camera wiring harness assembly according to claim 1, characterized in that: The outer layer of the composite wire (1) can also be detachably covered with a wire harness wrapping tape (8). The inner layer of the wire harness wrapping tape (8) is provided with a sponge pad layer (81), and the middle layer is provided with an armor layer (82). A soft adhesive layer (84) is provided on the outer layer of the armor layer (82), and a medium cavity (83) is provided on the inner side of the soft adhesive layer (84) near the armor layer (82). The medium cavities (83) are filled with the soft adhesive layer (84).

5. The automotive camera wiring harness assembly according to claim 4, characterized in that: The armor layer (82) is a spirally extended metal sheet covering the sponge pad layer (81), and soft rubber fillers are arranged between the media cavities (83) and are axially stacked on the outside of the armor layer (82).

6. The automotive camera wiring harness assembly according to claim 5, characterized in that: The media cavity (83) includes a healing cavity (87) filled with self-healing silicone rubber (85) and a chemical agent cavity (86), the common sidewall of the healing cavity (87) and the chemical agent cavity (86) being made of an environmentally responsive embrittlement material.

7. The automotive camera wiring harness assembly according to claim 6, characterized in that: The environmentally responsive embrittlement material is selected from one of the following: oxidatively degradable rubber containing unsaturated double bonds, hygroscopic and swelling polymer film, or hydrolytic polyester film. The environmentally responsive embrittlement material remains chemically inert when not in contact with air to isolate the oily rodent repellent in the chemical agent cavity (86). After the chemical agent cavity (86) is broken and comes into contact with air, it becomes embrittled, swollen, or disintegrates due to oxidation or moisture. Under external extrusion or internal stress, it breaks to connect the healing cavity (87) with the damaged area.

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