Self-winding sleeve
By designing a self-winding sleeve and utilizing the monofilament and multifilament braiding structure of color-changing material, the problems of aging and monitoring complexity of traditional sleeves at high temperatures are solved, enabling low-cost temperature display and thermal history tracing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGMEN JUNDINGDA NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional automotive wiring harness protective sleeves are prone to cable aging and oil pipe rupture under high-temperature conditions. Furthermore, existing temperature monitoring solutions rely on additional sensors, resulting in high costs, complex wiring, and an inability to trace thermal history.
The self-winding sleeve is made of monofilaments and multifilaments woven into a braided structure. The monofilaments and multifilaments are made of color-changing materials or coated with color-changing materials, which can change color at high temperatures to indicate high temperature locations, reduce the use of sensors and trace thermal history.
It enables visualization of the wiring harness usage environment at high temperatures, avoids aging or breakage issues, reduces costs, allows for tracking of thermal history, and simplifies wiring.
Smart Images
Figure CN224589080U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness protection technology, and in particular to a self-winding sleeve. Background Technology
[0002] Traditional automotive wiring harness / pipe protection sleeves only provide physical protection. Under high-temperature conditions, they are prone to problems such as cable aging and oil pipe rupture. Furthermore, faults are difficult to predict and cannot reflect the temperature status of the protected components in real time. Existing solutions rely on additional sensors for temperature monitoring, resulting in high costs, complex wiring, and the inability to trace thermal history (such as whether it has experienced overheating). Utility Model Content
[0003] Therefore, it is necessary to provide a self-winding sleeve to solve the technical problems of existing solutions, such as high cost, complex wiring, and inability to trace thermal history (e.g., whether it has experienced overheating), which rely on additional sensors for temperature monitoring.
[0004] This utility model provides a self-winding sleeve for protecting wire harnesses. The self-winding sleeve includes a sleeve body, which includes monofilaments and multifilaments. The monofilaments and multifilaments are woven into a sheet with a braided structure and then self-wound to form the sleeve body. The monofilaments are thermochromic to indicate high temperature locations.
[0005] In one embodiment, the multifilament is thermochromic to indicate high-temperature locations.
[0006] In one embodiment, the monofilament is a braided yarn made of a color-changing material, or the outer surface of the monofilament is coated with a coating layer containing a color-changing material;
[0007] The multifilament is a braided yarn made of a color-changing material, or the outer surface of the multifilament is coated with a coating layer containing a color-changing material.
[0008] In one embodiment, the monofilament and the multifilament are woven into a sheet with a twill weave structure.
[0009] In one embodiment, the monofilament and the multifilament are woven into a herringbone pattern sheet.
[0010] In one embodiment, the monofilament and the multifilament are woven into a sheet with a plain weave structure.
[0011] In one embodiment, the monofilament is a braided yarn made of polyester fiber, and the multifilament is a braided yarn made of polyester fiber.
[0012] In one embodiment, the sleeve body covers the wire harness and fixes the sleeve body to the wire harness.
[0013] In one embodiment, the sleeve body is fixed to the wire harness by external cable ties.
[0014] In one embodiment, the sleeve body is fixed to the wire harness after being attached by external Velcro.
[0015] Implementing the embodiments of this utility model will have the following beneficial effects:
[0016] The self-winding sleeve of this invention is used to protect wire harnesses. It includes a sleeve body, which comprises monofilaments and multifilaments. The monofilaments and multifilaments are woven into a braided sheet and then self-wound to form the sleeve body. Different braided structures can be applied to different wire harnesses. The monofilaments are thermochromic to indicate high-temperature locations. By enabling the monofilaments to change color at high temperatures, the sleeve body can change color in layout after reaching high temperatures, allowing for visualization of the usage environment of internal vehicle parts or wire harnesses. This avoids problems such as wire harness aging or oil pipe rupture caused by continuous high-temperature conditions. Compared with existing technologies, it reduces the use of sensors, has a lower cost, and can trace thermal history. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] in:
[0019] Figure 1 This is an isometric schematic diagram of a self-winding sleeve in one embodiment.
[0020] Figure 2 for Figure 1 The side view of the self-winding sleeve is shown.
[0021] Figure label:
[0022] 1. Sleeve body; 11. Monofilament; 12. Multifilament. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0025] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, 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, and therefore should not be construed as a limitation of this utility model.
[0026] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0027] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0028] Please combine them together Figures 1 to 2 The self-winding sleeve provided by this utility model will now be described. The self-winding sleeve is used to protect wire harnesses.
[0029] The self-winding sleeve includes: a sleeve body 1, which includes monofilament 11 and multifilament 12. The monofilament 11 and multifilament 12 are woven into a sheet with a braided structure and then self-wound into the sleeve body 1. The monofilament 11 is thermochromic to indicate the high temperature position.
[0030] Understandably, this self-winding sleeve is used to protect the wiring harness. It includes a sleeve body 1, which comprises monofilaments 11 and multifilaments 12. The monofilaments 11 and multifilaments 12 are braided into a sheet and then self-wound to form the sleeve body 1. Different braiding structures can be applied to different wiring harnesses. The monofilaments 11 are thermochromic to indicate high-temperature locations. By enabling the monofilaments 11 to be thermochromic, the sleeve body 1 can change color in layout after reaching high temperatures, allowing for visualization of the usage environment of internal vehicle parts or wiring harnesses. This avoids problems such as wiring harness aging or oil pipe rupture caused by continuous high-temperature conditions. Compared with existing technologies, it reduces the use of sensors, has a lower cost, and can trace thermal history.
[0031] It should be noted that the sleeve body 1 is itself made of weft monofilaments 11 and radial multifilaments 12 woven into a sheet in both warp and weft directions, and then formed into a stable coiled structure after being shaped at a certain temperature, thus obtaining a self-winding protective sleeve. The monofilaments 11 are used for thermochromic and shape memory, so that the monofilaments 11 change color after high temperature to indicate the high temperature environment, and can remember the shape after self-winding, so that the sleeve body 1 can always maintain its coiled shape. The multifilaments 12 provide mechanical strength, thereby enhancing the strength of the sleeve body 1.
[0032] It should be added that the sleeve body 1 itself is made of weft monofilament 11 and radial multifilament 12 woven into a sheet in the warp and weft directions. By making the monofilament 11 thermochromic, it is possible to show the high-temperature operating environment without the need for additional color-changing braided thread, thereby protecting the wire harness.
[0033] In this embodiment, the multifilament 12 is thermochromic to indicate high-temperature locations. Since both the monofilament 11 and the multifilament 12 can change color, the impact of high-temperature operating environments on the wire harness can be observed more intuitively.
[0034] Furthermore, the monofilament 11 is a braided yarn containing a color-changing material that displays different colors at different temperatures. This allows the monofilament 11 to display different colors at different temperatures in a high-temperature environment, enabling the observer to more accurately pinpoint the location of the high temperature and thus preventing the yarn bundle from being affected by high temperatures. The multifilament 12 is also a braided yarn containing a color-changing material that displays different colors at different temperatures. This allows the multifilament 12 to display different colors at different temperatures in a high-temperature environment, enabling the observer to more accurately pinpoint the location of the high temperature and thus preventing the yarn bundle from being affected by high temperatures.
[0035] Specifically, the monofilament 11 is a braided yarn made of a color-changing material, or the outer surface of the monofilament 11 is coated with a coating layer containing a color-changing material. The color-changing material can be a color-changing powder, added to the monofilament 11, or coated on the surface of the monofilament 11, so that the monofilament 11 can change color under high temperature conditions.
[0036] The multifilament 12 is a braided yarn containing a color-changing material, or the outer surface of the multifilament 12 is coated with a coating layer containing a color-changing material. The addition of a color-changing material to the multifilament 12, or the coating of a color-changing material on the surface of the multifilament 12, enables the multifilament 12 to change color under high-temperature conditions.
[0037] In one embodiment, such as Figure 1 As shown, monofilament 11 and multifilament 12 are woven into sheets with various braiding structures. Different braiding structures can be used for different wire harnesses, as detailed below:
[0038] In one embodiment, monofilament 11 and multifilament 12 are woven into a sheet with a twill weave structure. Through twill weaving at a specific angle, asymmetric residual stress is created within the sleeve body 1. When the sleeve is released from its constraints, this intrinsic stress drives it to spontaneously and predictably curl into a specific three-dimensional shape. Therefore, the twill weave can control the self-curving rate of the sleeve body 1. The twill weave structure exhibits properties between plain weave and herringbone weave, achieving a balance between flexibility, abrasion resistance, and tensile strength.
[0039] In another embodiment, monofilament 11 and multifilament 12 are woven into a herringbone pattern sheet. This sheet is extremely soft, highly elastic, fatigue-resistant, and has a small bending radius. During repeated bending and stretching movements, the herringbone pattern better disperses stress, making it less prone to deformation or damage and resulting in a longer lifespan. It is suitable for dynamic wiring harnesses.
[0040] In another embodiment, the monofilament 11 and multifilament 12 are woven into a sheet with a plain weave structure. This results in a stable and uniform structure, good abrasion resistance, and relatively strong tensile strength. The yarn interlacing points are dense, and the surface is smooth, effectively resisting friction and wear. It is suitable for environments where it frequently rubs against external objects. It is also suitable for stationary wire harnesses.
[0041] In one embodiment, continue as follows Figure 1 As shown, monofilament 11 is a braided yarn made of polyester fiber, and multifilament 12 is a braided yarn made of polyester fiber.
[0042] In one embodiment, such as Figure 1 and Figure 2 As shown, the sleeve body 1 is fitted onto the wire harness and fixed to the wire harness. In this way, the sleeve body 1 can protect the wire harness, and under high temperature conditions, it can change color to check the operating environment, prevent the wire harness from aging, and thus further protect the wire harness.
[0043] In one specific embodiment, the sleeve body 1 is fixed to the wire harness by wrapping it with external cable ties. After the sleeve body 1 is fitted onto the wire harness, the external cable ties wrap around it, so that the sleeve body 1 can be fixed to the wire harness.
[0044] In another specific embodiment, the sleeve body 1 is fixed to the wire harness after being attached with external Velcro. After the sleeve body 1 is fitted onto the wire harness, the opening of the sleeve body 1 is attached with Velcro, so that the sleeve body 1 can be fixed to the wire harness.
[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0046] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A self-winding sleeve for protecting wire harnesses, characterized in that, The self-winding sleeve includes: a sleeve body, the sleeve body comprising monofilaments and multifilaments, the monofilaments and multifilaments being woven into a woven sheet and then self-winding into the sleeve body, the monofilaments being thermochromic to indicate high temperature locations.
2. The self-winding sleeve according to claim 1, characterized in that, The multifilaments are thermochromic, which can be used to indicate high-temperature locations.
3. The self-winding sleeve according to claim 2, characterized in that, The monofilament is a braided yarn containing a color-changing material, or the outer surface of the monofilament is coated with a coating layer containing a color-changing material; The multifilament is a braided yarn made of a color-changing material, or the outer surface of the multifilament is coated with a coating layer containing a color-changing material.
4. The self-winding sleeve according to claim 1, characterized in that, The monofilaments and multifilaments are woven into a sheet with a twill weave structure.
5. The self-winding sleeve according to claim 1, characterized in that, The monofilaments and multifilaments are woven into a herringbone pattern sheet.
6. The self-winding sleeve according to claim 1, characterized in that, The monofilaments and multifilaments are woven into a sheet with a plain weave structure.
7. The self-winding sleeve according to claim 1, characterized in that, The monofilament is a braided yarn made of polyester fiber, and the multifilament is a braided yarn made of polyester fiber.
8. The self-winding sleeve according to claim 1, characterized in that, The sleeve body is fitted onto the wire harness and the sleeve body is fixed to the wire harness.
9. The self-winding sleeve according to claim 7, characterized in that, The sleeve body is fixed to the wire harness by external cable ties.
10. The self-winding sleeve according to claim 7, characterized in that, The sleeve body is fixed to the wire harness after being attached with external Velcro.