Waterproof structure of a multi-strand wire harness
By using a double-layer acetate cloth and soft silicone components on the cable, the waterproofing problem of the cable in harsh environments is solved, achieving higher waterproofing performance and structural stability, and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 深圳技威时代科技有限公司
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-16
AI Technical Summary
Existing cables have poor waterproof performance in harsh environments, especially at joints and transition areas where water can easily seep in, leading to equipment malfunctions or damage.
The multi-strand wire harness is wrapped with adhesive using a double layer of acetate cloth, and the soft silicone parts fit tightly with the contoured grooves of the housing. The elastic deformation of the soft silicone achieves a seal, enhancing the waterproof performance.
It improves the waterproof performance and structural strength of the cable, enhances connection stability, reduces potential problems caused by incomplete glue curing, and extends the service life of the equipment.
Smart Images

Figure CN224367515U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable technology, and in particular to a waterproof structure for a multi-strand wire harness. Background Technology
[0002] In outdoor surveillance and security equipment, as well as other electronic devices that need to operate in harsh environments, the waterproof performance of cables is crucial. These devices typically need to operate in harsh environments such as sunlight, rain, sandstorms, and snow, thus requiring high levels of waterproofing for the cables. However, most existing cable waterproofing measures have limitations and poor waterproofing performance. Without proper sealing at the connection points between the cable and the housing, and in the transition areas between the cable and waterproof components, moisture can easily seep into the cable, leading to equipment malfunction or damage. Utility Model Content
[0003] In view of the problems existing in the prior art, this utility model provides a waterproof structure for a multi-strand wire harness.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] This utility model provides a waterproof structure for a multi-strand wire harness, comprising: an outer shell, an inner shell detachably connected to the outer shell, a cable, a soft silicone component one, and a soft silicone component two;
[0006] The cable consists of a multi-strand wire harness and a double layer of acetate cloth wrapped around the multi-strand wire harness;
[0007] The double-layer acetate cloth is coated with glue to fill the gaps in the fine pores of the double-layer acetate cloth, making the multi-strand wire bundle waterproof when wrapped around it.
[0008] The soft silicone component one and soft silicone component two are disposed at both ends of the cable. The center of each soft silicone component one and soft silicone component two is provided with a through hole for the cable to pass through. The cable passes through the through hole, and the soft silicone component one and soft silicone component two are sealed with the double-layer acetate cloth through an adhesive layer.
[0009] The outer shell and inner shell are provided with contour groove 1 and contour groove 2 that match the outer contours of soft silicone part 1 and soft silicone part 2; the soft silicone part 1 and soft silicone part 2 are pressed into the contour groove 1 and contour groove 2, so that the contact surfaces of the soft silicone part 1 and soft silicone part 2 are tightly fitted with the contact surfaces of the contour groove 1 and contour groove 2.
[0010] Preferably, the outer shell and the inner shell are detachably connected by a snap-fit mechanism.
[0011] Preferably, the outer shell is provided with a buckle, and correspondingly, the inner shell is provided with a slot that matches the buckle.
[0012] Preferably, the adhesive is an epoxy resin adhesive or a polyurethane adhesive.
[0013] Preferably, the adhesive layer is silicone sealant.
[0014] Preferably, both the outer shell and the inner shell are L-shaped, with the first contouring groove located on the horizontal part of the outer shell and the second contouring groove located on the vertical part of the inner shell.
[0015] The technical solution of this utility model has the following beneficial effects:
[0016] By wrapping the multi-strand wire harness with double-layered acetate cloth and applying adhesive, the gaps in the pores of the acetate cloth are filled with adhesive, forming a single, integrated cable that is waterproof. This design not only improves the stability and reliability of the waterproofing effect but also enhances the overall structural strength of the cable.
[0017] By utilizing the elastic deformation of soft silicone, the wire harness is passed through it. After the silicone tightens around the wire harness, adhesive is applied to seal the silicone and acetate cloth, achieving waterproofing. This design not only improves waterproofing but also reduces adhesive usage and minimizes the risk of incomplete adhesive curing.
[0018] The soft, elastic silicone material fits snugly against the contoured grooves of the housing, achieving waterproofing. This design not only improves waterproofing but also enhances the connection stability between the cable and the housing, extending the device's lifespan. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This utility model is a structural explosion Figure 1 ;
[0021] Figure 3 This utility model is a structural explosion Figure 2 ;
[0022] Figure 4 This is a schematic diagram of the installation of the cable of this utility model. Detailed Implementation
[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0028] Reference Figures 1 to 4This utility model provides a waterproof structure for a multi-strand wire harness, including: an outer shell 1, an inner shell 2 detachably connected to the outer shell 1, a cable 3, a soft silicone component 4, and a soft silicone component 5.
[0029] The cable 3 is composed of a multi-strand wire harness and a double layer of acetate cloth wrapped around the multi-strand wire harness;
[0030] The double-layer acetate cloth is coated with adhesive to fill the gaps in the fine pores of the double-layer acetate cloth, making the multi-strand wire bundle waterproof when wrapped; the adhesive is epoxy resin adhesive or polyurethane adhesive.
[0031] The adhesive can effectively fill the pores and gaps on the double-layer acetate fabric, forming a continuous waterproof membrane. This prevents moisture from seeping into the wire harness through the tiny pores of the fabric. Through the sealing effect of the adhesive, the double-layer acetate fabric can better perform its waterproof function and improve the waterproof rating of the cable.
[0032] The soft silicone component 4 and soft silicone component 5 are disposed at both ends of the cable 3. Each of the soft silicone component 4 and soft silicone component 5 has a through hole in its center for the cable 3 to pass through. The cable 3 passes through the through hole. The soft silicone component 4 and soft silicone component 5 are sealed to the double-layer acetate cloth through an adhesive layer, forming a sealed whole. This effectively prevents moisture from seeping in through the gaps between the soft silicone component and the double-layer acetate cloth, providing a good seal and ensuring the waterproof performance of the cable 3 connection. The adhesive layer is silicone sealant. The outer shell 1 and inner shell 2 are provided with contoured grooves 101 and 201 that match the outer contours of the soft silicone component 4 and soft silicone component 25. The soft silicone component 4 and soft silicone component 25 are pressed into the contoured grooves 101 and 201, ensuring a tight fit between their contact surfaces. The soft silicone material has good elasticity and can adapt to certain deformations and external forces. When subjected to external pressure or impact, soft silicone parts 4 and 5 can undergo elastic deformation and be pressed into the contour grooves 101 and 201. When soft silicone parts 4 and 5 are pressed into the contour grooves 101 and 201, the contact surfaces between them fit tightly, further enhancing the sealing effect and effectively preventing moisture from seeping in from the gaps between the soft silicone parts and the outer shell 1 and inner shell 2, ensuring the sealing performance of the entire waterproof structure and guaranteeing the waterproof performance of the equipment in harsh environments.
[0033] Furthermore, the outer shell 1 and the inner shell 2 are detachably connected by a snap-fit mechanism. The outer shell 1 is provided with a buckle, and correspondingly, the inner shell 2 is provided with a slot that matches the buckle, making disassembly and assembly convenient.
[0034] Furthermore, both the outer shell 1 and the inner shell 2 are L-shaped, the first molding groove 101 is provided on the horizontal part of the outer shell 1, and the second molding groove 201 is provided on the vertical part of the inner shell 2.
[0035] This invention utilizes double-layer acetate cloth coated with adhesive to wrap multi-strand wire harnesses: The multi-strand wire harnesses are wrapped in double-layer acetate cloth, and adhesive is applied to the cloth to fill the gaps in the fine pores, forming a unified cable and thus achieving waterproofing for the multi-strand wire harnesses. This design not only improves the stability and reliability of the waterproofing effect but also enhances the overall structural strength of the cable.
[0036] This invention utilizes the elastic deformation of soft silicone to pass the wire harness through it. After the soft silicone tightens the wire harness, adhesive is applied to seal the soft silicone against the acetate cloth, achieving waterproofing. By leveraging the elastic deformation of the soft silicone to pass the wire harness through it, and then applying adhesive to tighten the wire harness, a seal is formed between the soft silicone and the acetate cloth, further enhancing the waterproof performance. This design not only improves the waterproofing effect but also reduces the amount of adhesive used, lowering the risk of waterproofing problems caused by incomplete adhesive curing.
[0037] This invention utilizes the elasticity of soft silicone to achieve a tight fit with the contoured groove of the housing, thus providing waterproofing. This design not only improves the waterproofing effect but also enhances the connection stability between the cable and the housing, extending the service life of the equipment.
[0038] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A waterproof structure of a plurality of wire bundles, characterized by, Include: The shell, the inner shell detachably connected with the shell, the cable, the soft silicone piece one, the soft silicone piece two; The cable is composed of a plurality of wire bundles and a double-layer acetate cloth wrapped around the plurality of wire bundles; The double-layer acetate cloth is coated with glue, which is used to fill the gaps of the pores on the double-layer acetate cloth and make the plurality of wire bundles waterproof when wrapped around the plurality of wire bundles; The soft silicone piece one and the soft silicone piece two are arranged at both ends of the cable, the center of the soft silicone piece one and the soft silicone piece two is provided with a through hole for the cable to pass through, the cable passes through the through hole, and the soft silicone piece one and the soft silicone piece two are sealed by a point glue layer between the double-layer acetate cloth; The shell and the inner shell are provided with a first and second profiled groove matched with the outer contour of the soft silicone piece one and the soft silicone piece two; the soft silicone piece one and the soft silicone piece two are embedded in the first and second profiled groove under pressure, so that the soft silicone piece one and the soft silicone piece two are tightly matched with the contact surface of the first and second profiled groove.
2. The waterproof structure of a plurality of wire bundles according to claim 1, characterized by The shell and the inner shell are detachably connected by clamping.
3. The waterproof structure of a plurality of wire bundles according to claim 2, characterized by The shell is provided with a buckle, and correspondingly, the inner shell is provided with a clamping groove matched with the buckle.
4. The waterproof structure of a plurality of wire bundles according to claim 1, characterized by The glue is epoxy resin glue or polyurethane glue.
5. The waterproof structure of a plurality of wire bundles according to claim 1, characterized by The point glue layer is a silicone sealant.
6. The waterproof structure of a plurality of wire bundles according to claim 1, characterized by The shell and the inner shell are both L-shaped, the first profiled groove is arranged on the horizontal part of the shell, and the second profiled groove is arranged on the vertical part of the inner shell.