A waterproof sealing structure for high-voltage wiring harnesses

Abstract

This utility model provides a waterproof sealing structure for high-voltage wiring harnesses, relating to the field of high-voltage wiring harness technology. It includes a collar fitted onto the outer wall of the high-voltage wiring harness, the collar being slidably connected to the harness. A rubber sleeve is provided on the inner wall of the collar, and the rubber sleeve is glued and fixed to the collar. Multiple rubber dots are provided inside the rubber sleeve, fixedly connected to the rubber sleeve with one side contacting the outer wall of the high-voltage wiring harness. A telescopic cylinder is provided on the right side of the rubber sleeve, glued and fixed to the rubber sleeve. A connecting ring is provided on the side of the telescopic cylinder away from the rubber sleeve, fixedly connected to the rubber sleeve. A flared cylinder is provided on the right side of the connecting ring, glued and fixed to the connecting ring. This utility model, through the tight fit between the rubber dots and the outer wall of the wiring harness, the wrapping of the flared cylinder with the connector, and the bonding of the adhesive layer to the mounting surface, forms a three-dimensional sealing system of "wiring harness body → connector → mounting surface," effectively blocking the path of moisture penetration.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage wiring harness technology, specifically to a waterproof sealing structure for high-voltage wiring harnesses. Background Technology

[0002] High-voltage wiring harnesses are core components of high-voltage electrical systems, used to transmit voltages above 60V (typically 300V to 1000V) and large currents, connecting high-voltage components such as battery packs and motor controllers. In harsh operating conditions such as those in commercial vehicles, the connectors of high-voltage wiring harnesses are prone to aging and delamination due to fatigue, making them highly susceptible to water ingress during rain or high-pressure car washes, posing a safety hazard. Current technology lacks a multi-layered waterproof protection structure for the wiring harness itself and its connectors, making it difficult to meet the sealing requirements of complex environments.

[0003] Therefore, a waterproof sealing structure for high-voltage wiring harnesses is proposed. Utility Model Content

[0004] The present invention aims to solve the problems mentioned in the background art by providing a waterproof sealing structure for high-voltage wiring harnesses.

[0005] The specific technical solution is as follows:

[0006] A waterproof sealing structure for a high-voltage wiring harness includes a collar fitted onto the outer wall of the high-voltage wiring harness, the collar being slidably connected to the high-voltage wiring harness; a rubber sleeve is provided on the inner wall of the collar, the rubber sleeve being glued and fixed to the collar; multiple rubber dots are provided inside the rubber sleeve, the rubber dots being fixedly connected to the rubber sleeve and having one side contacting the outer wall of the high-voltage wiring harness; a telescopic cylinder is provided on the right side of the rubber sleeve, the telescopic cylinder being glued and fixed to the rubber sleeve; a connecting ring is provided on the side of the telescopic cylinder away from the rubber sleeve, the connecting ring being fixedly connected to the rubber sleeve; a flared cylinder is provided on the right side of the connecting ring, the flared cylinder being glued and fixed to the connecting ring; a circular ring is provided on the right side of the flared cylinder, the circular ring being fixedly connected to the flared cylinder; an adhesive layer is provided on the side of the circular ring, the adhesive layer being glued and fixed to the circular ring; release paper is provided on the right side of the adhesive layer, the release paper being detachably connected to the adhesive layer.

[0007] As a preferred embodiment of this utility model, a wire harness connector is provided on the right side of the high-voltage wire harness, the wire harness connector is fixedly connected to the high-voltage wire harness, and the wire harness connector is located inside the flared cylinder.

[0008] As a preferred embodiment of this utility model, the telescopic cylinder is sleeved on the outside of the high-voltage wire harness, and the telescopic cylinder is a telescopic corrugated rubber cylinder.

[0009] In a preferred embodiment of this utility model, the connecting ring is sleeved on the right side of the outer wall of the high-voltage wire harness, and the inner diameter of the connecting ring is larger than the diameter of the high-voltage wire harness.

[0010] As a preferred embodiment of this utility model, the release paper is polyethylene release paper, and its surface is coated with a release silicone oil layer, which can be peeled off without leaving any adhesive residue.

[0011] As a preferred embodiment of this utility model, the rubber dots are evenly distributed on the inner wall of the rubber sleeve, and the material is the same as that of the rubber sleeve, which is flexible rubber. The surface of the rubber dots that contacts the outer wall of the high-voltage wire harness has an arc surface structure.

[0012] As a preferred embodiment of this utility model, the flared cylinder has a trumpet-shaped structure with an inner diameter that gradually increases from left to right, adapting to the outer contour of the wire harness connector.

[0013] In a preferred embodiment of this utility model, the annular piece is fixedly connected to the flared cylinder by a hot pressing process to form an integrated sealing structure.

[0014] As a preferred embodiment of this utility model, the adhesive layer is a silicone rubber adhesive layer with a thickness of 0.3-0.5mm, which has water resistance and aging resistance properties.

[0015] As a preferred embodiment of this utility model, the collar, the connecting ring, and the circular ring are all made of engineering plastic, which has vibration resistance and high pressure resistance characteristics.

[0016] This utility model has the following beneficial effects:

[0017] 1. Multi-layered waterproof barrier:

[0018] By tightly fitting the rubber dots to the outer wall of the wire harness, wrapping the flared tube connector, and bonding the adhesive layer to the mounting surface, a three-dimensional sealing system of "wire harness body → connector → mounting surface" is formed, effectively blocking the path of moisture penetration.

[0019] 2. Strong adaptability to working conditions:

[0020] The telescopic cylinder's expandable characteristics, the gap design of the connecting ring, and the elasticity of the rubber material enable the structure to adapt to complex working conditions such as changes in wire harness length and bending vibration, avoiding sealing failure caused by rigid contact.

[0021] 3. Easy installation and long-lasting protection:

[0022] The release paper design facilitates quick on-site installation without the need for additional tools; the silicone rubber adhesive layer, combined with engineering plastic components such as collars and rings, provides water resistance, aging resistance, and vibration resistance, extending the lifespan of the wiring harness and reducing safety risks caused by water ingress.

[0023] 4. Modular integrated design:

[0024] The components, such as collars, flared tubes, and circular rings, are integrated through processes such as bonding and hot pressing, resulting in a compact structure that can be adapted to wire harnesses of different specifications, improving versatility and ease of maintenance. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0027] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle.

[0028] In the diagram: 1. High-voltage wiring harness; 2. Collar; 3. Telescopic cylinder; 4. Connecting ring; 5. Flared cylinder; 6. Circular ring plate; 7. Rubber dot; 8. Rubber sleeve; 9. Wiring harness connector; 10. Release paper; 11. Adhesive layer. Detailed Implementation

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0031] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Example

[0034] The high-voltage wiring harness waterproof sealing structure provided in this embodiment, such as Figures 1-3 As shown, the device includes a collar 2 fitted onto the outer wall of a high-voltage wiring harness 1, which is slidably connected to the harness 1; a rubber sleeve 8 is provided on the inner wall of the collar 2, which is glued to the collar 2; multiple rubber points 7 are provided inside the rubber sleeve 8, which are fixedly connected to the rubber sleeve 8 and have one side in contact with the outer wall of the high-voltage wiring harness 1; a telescopic cylinder 3 is provided on the right side of the rubber sleeve 8, which is glued to the rubber sleeve 8; a connecting ring 4 is provided on the side of the telescopic cylinder 3 away from the rubber sleeve 8, which is fixedly connected to the rubber sleeve 8; a flared cylinder 5 is provided on the right side of the connecting ring 4, which is glued to the connecting ring 4; a circular ring 6 is provided on the right side of the flared cylinder 5, which is fixedly connected to the flared cylinder 5; an adhesive layer 11 is provided on the side of the circular ring 6, which is glued to the circular ring 6; and release paper 10 is provided on the right side of the adhesive layer 11, which is detachably connected to the adhesive layer 11.

[0035] The sliding connection between the collar 2 and the high-voltage harness 1 allows the sealing structure to move flexibly along the harness, adapting to different installation positions. The rubber sleeve 8 and rubber point 7 work together to form a first waterproof barrier by using flexible materials to tightly adhere to the outer wall of the harness, preventing moisture from penetrating along the harness surface. The telescopic cylinder 3's extendable elastic structure adapts to the protection needs of harnesses of different lengths, improving structural compatibility. The connecting ring 4 and flared cylinder 5 work together to construct a transitional sealing path from the harness body to the connector. The flared cylinder 5 wraps around the harness connector 9 to prevent moisture from entering the connector area. The circular ring 6 and adhesive layer 11 work together to fix the circular ring to the installation plane, filling the gap between the harness and the plane to form a terminal seal. The release paper 10 is designed for quick peeling during installation.

[0036] Specifically, in this embodiment, a wire harness connector 9 is provided on the right side of the high-voltage wire harness 1. The wire harness connector 9 is fixedly connected to the high-voltage wire harness 1 and is located inside the flared cylinder 5. By placing the wire harness connector 9 inside the flared cylinder 5, the physical shielding characteristics of the flared cylinder 5 are used to completely cover the wire harness connector 9, specifically protecting this water-prone part of the connector and preventing rainwater from directly washing over the connector connection.

[0037] Specifically, in this embodiment, the telescopic cylinder 3 is sleeved on the outside of the high-voltage wire harness 1, and the telescopic cylinder 3 is a telescopic corrugated rubber cylinder. The telescopic cylinder 3 is a telescopic corrugated rubber cylinder: the corrugated structure enhances the elasticity of the telescopic movement, and can adaptively adjust with the bending or length change of the wire harness to maintain the continuity of the seal. At the same time, the rubber material has both waterproof and vibration-resistant properties.

[0038] Specifically, in this embodiment, the connecting ring 4 is sleeved on the right side of the outer wall of the high-voltage wire harness 1, and the inner diameter of the connecting ring 4 is larger than the diameter of the high-voltage wire harness 1. The inner diameter of the connecting ring 4 being larger than the diameter of the high-voltage wire harness 1 ensures that the connecting ring 4 fits the wire harness while allowing for a certain gap to permit small displacement or thermal expansion and contraction of the wire harness, thus avoiding damage to the sealing structure due to rigid compression.

[0039] Specifically, in this embodiment, the release paper 10 is polyethylene release paper with a release silicone oil layer coated on its surface. Coating the polyethylene release paper 10 with a release silicone oil layer can ensure that the adhesive layer 11 is clean before installation, and there is no residual adhesive residue when peeling it off, thereby improving installation efficiency and avoiding contamination of the sealing surface, and ensuring the effective adhesion of the adhesive layer.

[0040] Specifically, in this embodiment, the rubber dots 7 are evenly distributed on the inner wall of the rubber sleeve 8, and the material is the same as that of the rubber sleeve 8, both being flexible rubber. The surface of the rubber dots 7 in contact with the outer wall of the high-voltage wire harness 1 has an arc-shaped structure. The even distribution of the rubber dots 7 and the arc-shaped surface enhance the tightness of the fit with the outer wall of the wire harness. The even distribution design ensures consistent circumferential sealing force, eliminates local gaps, and improves the overall waterproof reliability.

[0041] The reason for using rubber point 7 instead of rubber ring in this embodiment is as follows:

[0042] I. The rationality of rubber dot design

[0043] 1. Enhances fit and sealing reliability

[0044] Rubber dots are evenly distributed on the inner wall of the rubber sleeve, and the surface in contact with the outer wall of the high-voltage harness has an arc-shaped structure. This arc-shaped structure better conforms to the curved surface of the harness's outer wall, increasing the contact area; the evenly distributed design ensures consistent circumferential sealing force, avoiding gaps caused by uneven local pressure, thus improving overall waterproof reliability. If rubber rings were used, they might not fit completely when the harness is bent or has an uneven surface, creating gaps and allowing moisture to penetrate.

[0045] 2. Adaptable to complex working conditions

[0046] High-voltage wiring harnesses may shift or deform during operation due to vibration, thermal expansion and contraction, etc. Rubber dots, being independent point structures, allow each point to undergo independent elastic deformation, better adapting to the subtle undulations and vibrations of the wiring harness and maintaining tight contact with its outer wall. In contrast, rubber rings, being continuous structures, have relatively limited elastic deformation. Under changing operating conditions, they may fail to adapt to the harness's deformation in a timely manner, potentially leading to seal failure.

[0047] 3. Reduce material costs and weight

[0048] Compared to rubber rings, rubber dots use less rubber material, which reduces material costs and lightens the weight of the entire sealing structure. This is advantageous for applications where weight is a concern (such as commercial vehicles).

[0049] II. Ensuring Sealing

[0050] 1. Synergistic effect of multi-layered waterproof barriers

[0051] This sealing structure forms a three-dimensional sealing system: "wire harness body → connector → mounting surface". The rubber dots adhere tightly to the outer wall of the wire harness, forming the first waterproof barrier and preventing moisture from penetrating along the wire harness surface. The flared cylinder wraps around the wire harness connector, preventing moisture from entering the connector area. The adhesive layer bonds to the mounting surface, filling the gap between the wire harness and the surface, forming a terminal seal. These multi-level seals work together to effectively block moisture penetration paths. Even if the sealing effect of a single rubber dot is slightly insufficient, the other levels of sealing can compensate, ensuring overall airtightness.

[0052] 2. Optimization of materials and structure

[0053] The rubber dots are made of flexible rubber, possessing excellent elasticity and water resistance, allowing them to fit snugly against the outer wall of the wire harness. Simultaneously, the rubber dots are fixedly connected to the rubber sleeve, forming a unified whole, ensuring they will not detach or shift during use, further guaranteeing sealing. Furthermore, the telescopic nature of the telescopic cylinder and the gap design of the connecting ring also help maintain tight contact between the rubber dots and the wire harness, improving sealing performance.

[0054] In conclusion, using rubber rings instead of rubber dots may not necessarily improve the sealing effect; on the contrary, the structural characteristics may limit the sealing reliability under complex operating conditions. Therefore, using rubber dots is reasonable. Through reasonable structural design (such as uniform distribution and curved surface contact), material selection (flexible rubber), and synergy with other components, sealing performance can be guaranteed, effectively meeting the waterproofing requirements of high-voltage wiring harnesses under harsh operating conditions.

[0055] Specifically, in this embodiment, the flared tube 5 has a trumpet-shaped structure with an inner diameter that gradually increases from left to right, adapting to the outer contour of the wire harness connector 9. The flared tube 5, with its trumpet-shaped structure and gradually increasing inner diameter from left to right, adapts to the stepped or enlarged shape of the wire harness connector 9, forming a tight enclosure and guiding water flow to drip along the outside of the flare, reducing the path of water penetration into the connector area.

[0056] Specifically, in this embodiment, the annular piece 6 is fixedly connected to the flared cylinder 5 by a hot-pressing process to form an integrated sealing structure. Hot-pressing the annular piece 6 and the flared cylinder 5 together eliminates the seams and gaps of traditional bonding processes, forming a seamless sealing structure, improving overall rigidity and waterproof performance, and avoiding the risk of water leakage due to component separation.

[0057] Specifically, in this embodiment, the adhesive layer 11 is a silicone rubber adhesive layer with a thickness of 0.3-0.5mm. The water resistance and aging resistance of the silicone rubber adhesive layer 11 can adapt to complex outdoor environments. The 0.3-0.5mm thickness provides moderate bonding strength and elasticity, which can fill the small depressions on the installation surface and ensure reliable sealing.

[0058] Specifically, in this embodiment, the collar 2, connecting ring 4, and circular ring 6 are all made of engineering plastic. By making the collar 2, connecting ring 4, and circular ring 6 of engineering plastic, they have both rigid support and vibration resistance, can withstand mechanical stress and environmental impact during the operation of high-voltage wire harnesses, extend the service life of the sealing structure, and provide a stable installation foundation for rubber flexible components.

[0059] In summary, the high-voltage wiring harness waterproof sealing structure provided in this embodiment has the following advantages:

[0060] 1. Multi-layered waterproof barrier:

[0061] By tightly fitting the rubber point 7 to the outer wall of the wire harness, wrapping the flared tube 5 around the connector 9, and bonding the adhesive layer 11 to the mounting surface, a three-dimensional sealing system of "wire harness body → connector → mounting surface" is formed, effectively blocking the path of moisture penetration.

[0062] 2. Strong adaptability to working conditions:

[0063] The telescopic characteristics of the telescopic cylinder 3, the gap design of the connecting ring 4, and the elasticity of the rubber material enable the structure to adapt to complex working conditions such as changes in wire harness length and bending vibration, avoiding sealing failure caused by rigid contact.

[0064] 3. Easy installation and long-lasting protection:

[0065] The release paper 10 is designed for quick on-site installation without the need for additional tools; the silicone rubber adhesive layer 11 is combined with components such as the engineering plastic collar 2 and the circular ring 6, which have water resistance, aging resistance and vibration resistance, extending the service life of the wiring harness and reducing the safety risks caused by water ingress.

[0066] 4. Modular integrated design:

[0067] The components, such as the collar 2, the flared tube 5, and the circular ring 6, are integrated through processes such as bonding and hot pressing, resulting in a compact structure that can be adapted to wire harnesses of different specifications, improving versatility and ease of maintenance.

[0068] Working principle

[0069] 1. Wiring harness body sealing:

[0070] The collar 2 is fitted onto the outer wall of the high-voltage harness 1 and slidably connected. The rubber sleeve 8 on its inner side is fixed to the collar 2 by adhesive. The rubber dots 7 on the inner wall of the rubber sleeve 8 are tightly attached to the outer wall of the harness. The elastic deformation of the flexible material fills the gaps on the surface of the harness, forming the first waterproof barrier.

[0071] 2. Protection of the joint area:

[0072] The telescopic cylinder 3 on the right side of the rubber sleeve 8 is made of rubber and can be extended to fit outside the wire harness. It can adaptively adjust with changes in the length or curvature of the wire harness to extend the protection range. The telescopic cylinder 3 is connected to the flared cylinder 5 via the connecting ring 4. The flared cylinder 5 wraps around the wire harness connector 9 and uses physical shielding to prevent moisture from directly penetrating the connector.

[0073] 3. Terminal plane seal:

[0074] The annular piece 6 on the right side of the flared cylinder 5 is fixedly connected to the flared cylinder 5 by a hot pressing process. The adhesive layer 11 on the side of the annular piece 6 can be pasted onto the wire harness connector mounting surface after the release paper 10 is removed, filling the gap between the wire harness and the surface and forming a terminal seal.

[0075] 4. Dynamic adaptation mechanism:

[0076] The inner diameter of the connecting ring 4 is larger than the diameter of the wire harness, allowing for small displacements or thermal expansion and contraction of the wire harness; the corrugated structure of the telescopic cylinder 3 enhances elasticity, adapts to wire harness vibration or deformation, and maintains continuous sealing.

[0077] The application process for the waterproof sealing structure of high-voltage wiring harnesses is as follows:

[0078] I. Preparations before installation

[0079] 1. Confirm the integrity of the components:

[0080] Check that the following components are complete and undamaged: collar 2, rubber sleeve 8, rubber dot 7, telescopic cylinder 3, connecting ring 4, flared cylinder 5, circular ring 6, adhesive layer 11, release paper 10, etc.

[0081] 2. Clean the wiring harness and mounting surface:

[0082] Wipe the outer wall of the high-voltage harness 1 and the surface of the harness connector 9 with alcohol or cleaning agent to remove oil and dust; clean the mounting surface of the harness connector to ensure that no debris affects the adhesion of the adhesive layer 11.

[0083] II. Installation Process

[0084] 1. Loop positioning and sliding installation:

[0085] Slide the collar 2 along the outer wall of the high-voltage harness 1 to the target position, ensuring that the rubber sleeve 8 covers the section of the harness that needs protection, and that the rubber point 7 fits tightly against the outer wall of the harness.

[0086] 2. Protection of the joint area:

[0087] Push the collar 2 to extend the telescopic cylinder 3, align the flared cylinder 5 with the wire harness connector 9, and slowly move the collar 2 until the flared cylinder 5 completely covers the wire harness connector 9, ensuring that the connector 9 is inside the flared cylinder 5.

[0088] 3. Secure the circular ring with adhesive:

[0089] After confirming that the position of the flared tube 5 is fixed, peel off the release paper 10 on the right side of the ring piece 6, align the adhesive layer 11 with the mounting surface of the wire harness connector, such as the surface of the equipment housing, and press the ring piece 6 evenly to make it stick tightly, ensuring that the adhesive layer 11 is in complete contact with the surface without air bubbles or gaps.

[0090] 4. Adjustment of the telescopic cylinder:

[0091] Depending on the actual length or curvature of the wire harness, manually stretch or compress the telescopic cylinder 3, adjust the relative position of the collar 2 and the flared cylinder 5, and ensure that the telescopic cylinder 3 is not excessively tight or loose, maintaining a natural elastic state.

[0092] III. Functional Verification

[0093] 1. Waterproof test:

[0094] Spray water mist onto the wiring harness and connector area, and observe whether there are any signs of water penetration on the mounting surface, the contact surface between the collar 2 and the wiring harness, and the edge of the flared cylinder 5, to ensure that there is no visible water intrusion.

[0095] 3. Mechanical stability check:

[0096] Gently shake the high-voltage harness 1 to check whether the collar 2 has slipped or shifted and whether the circular ring 6 has detached from the installation plane. Ensure that all components are firmly connected and that the telescopic cylinder 3 does not deform abnormally with the vibration of the harness.

[0097] IV. Maintenance and Replacement

[0098] 1. Regular inspections:

[0099] Check the adhesion of the adhesive layer 11 at regular intervals, such as during vehicle maintenance. If the edge of the ring piece 6 is found to be raised or leaking water, the surface needs to be cleaned again and the release paper 10 or adhesive layer 11 needs to be replaced.

[0100] 2. Component replacement:

[0101] If rubber components such as rubber sleeve 8 and telescopic cylinder 3 show signs of aging or cracking, the entire collar 2 can be replaced. If the wire harness connector 9 needs repair, the circular ring 6 can be peeled off first, and the sealing structure can be reinstalled after the repair is completed.

[0102] V. Precautions

[0103] 1. Environmentally Adaptable Operation:

[0104] In low-temperature environments, it is recommended to preheat rubber components such as telescopic cylinder 3 to room temperature to avoid installation difficulties or reduced sealing performance due to material hardening.

[0105] 2. Avoid excessive stretching:

[0106] The elongation of the telescopic cylinder 3 must be controlled within the design range to avoid exceeding the elastic limit and causing structural damage.

[0107] 3. Release paper preservation:

[0108] When not installed, ensure that the release paper 10 completely covers the adhesive layer 11 to avoid dust contamination affecting the bonding effect.

[0109] Summarize

[0110] This standardized process, involving sliding positioning, connector wrapping, flat pasting, and flexible adjustment, enables rapid sealing of high-voltage wiring harnesses and connectors. Combined with a regular maintenance mechanism, it effectively addresses waterproofing requirements under harsh operating conditions, enhancing the safety and reliability of high-voltage electrical systems.

[0111] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof sealing structure for high-voltage wiring harnesses, characterized in that: The system includes a collar (2) fitted onto the outer wall of a high-voltage wire harness (1), the collar (2) being slidably connected to the high-voltage wire harness (1); a rubber sleeve (8) is provided on the inner wall of the collar (2), the rubber sleeve (8) being glued and fixed to the collar (2); multiple rubber points (7) are provided inside the rubber sleeve (8), the rubber points (7) being fixedly connected to the rubber sleeve (8) and one side contacting the outer wall of the high-voltage wire harness (1); a telescopic cylinder (3) is provided on the right side of the rubber sleeve (8), the telescopic cylinder (3) being glued and fixed to the rubber sleeve (8); the telescopic cylinder (3) is located away from the rubber sleeve (8). A connecting ring (4) is provided on one side, and the connecting ring (4) is fixedly connected to the rubber sleeve (8); a flared cylinder (5) is provided on the right side of the connecting ring (4), and the flared cylinder (5) is glued and fixed to the connecting ring (4); a circular ring piece (6) is provided on the right side of the flared cylinder (5), and the circular ring piece (6) is fixedly connected to the flared cylinder (5); an adhesive layer (11) is provided on the side of the circular ring piece (6), and the adhesive layer (11) is glued and connected to the circular ring piece (6); a release paper (10) is provided on the right side of the adhesive layer (11), and the release paper (10) is detachably connected to the adhesive layer (11).

2. The high-voltage wiring harness waterproof sealing structure according to claim 1, characterized in that: A wire harness connector (9) is provided on the right side of the high-voltage wire harness (1). The wire harness connector (9) is fixedly connected to the high-voltage wire harness (1), and the wire harness connector (9) is located inside the flared cylinder (5).

3. The high-voltage wiring harness waterproof sealing structure according to claim 1, characterized in that: The telescopic cylinder (3) is sleeved on the outside of the high-voltage wire harness (1), and the telescopic cylinder (3) is a telescopic corrugated rubber cylinder.

4. The high-voltage wiring harness waterproof sealing structure according to claim 1, characterized in that: The connecting ring (4) is sleeved on the right side of the outer wall of the high voltage harness (1), and the inner diameter of the connecting ring (4) is larger than the diameter of the high voltage harness (1).

5. The high-voltage wiring harness waterproof sealing structure according to claim 1, characterized in that: The release paper (10) is polyethylene release paper with a release silicone oil layer coated on its surface. It can be peeled off without leaving any adhesive residue.

6. The high-voltage wiring harness waterproof sealing structure according to claim 1, characterized in that: The rubber dots (7) are evenly distributed on the inner wall of the rubber sleeve (8), and the material is the same as that of the rubber sleeve (8), which is flexible rubber. The surface of the rubber dots (7) that contacts the outer wall of the high voltage wire harness (1) is an arc surface structure.

7. The high-voltage wiring harness waterproof sealing structure according to claim 2, characterized in that: The flared tube (5) has a trumpet-shaped structure with an inner diameter that gradually increases from left to right, adapting to the outer contour of the wire harness connector (9).

8. The high-voltage wiring harness waterproof sealing structure according to claim 1, characterized in that: The annular piece (6) is fixedly connected to the flared cylinder (5) by a hot pressing process to form an integrated sealing structure.

9. The high-voltage wiring harness waterproof sealing structure according to claim 1, characterized in that: The adhesive layer (11) is a silicone rubber adhesive layer with a thickness of 0.3-0.5 mm, and has water resistance and aging resistance properties.

10. The high-voltage wiring harness waterproof sealing structure according to any one of claims 1-9, characterized in that: The collar (2), the connecting ring (4), and the circular ring (6) are all made of engineering plastics, which have vibration resistance and high pressure resistance.

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