Color-changeable wire warning device
By installing a thermochromic conduit and an elastic thermally conductive liner on the conductor, a color-changing conductor warning device is used to solve the problem of reduced insulation performance and safety hazards caused by conductor overheating under overload, achieving immediate visual warning and improved safety.
Patent Information
- Application Number
- CN202520330289.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The problems of reduced insulation performance and safety hazards caused by overheating of conductors during power transmission have not been effectively resolved.
A color-changing wire warning device using a thermochromic conduit and an elastic thermally conductive liner provides a visual warning by transferring heat to the thermochromic conduit when the wire heats up, causing it to change color.
It improves the safety and reliability of power transmission, prevents equipment failures and safety accidents through real-time visual warnings, and reduces the need for human monitoring.
Smart Images

Figure CN223828987U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conductor protection technology, specifically a color-changing conductor warning device. Background Technology
[0002] During power transmission, if the load is too large and the current exceeds the rated carrying capacity of the conductor and its insulation sheath, significant overheating will occur. Overheating not only accelerates the aging of the conductor material and reduces its insulation performance, but may also cause the conductor insulation sheath to melt or even burn, leading to serious electrical safety hazards such as short circuits and fires.
[0003] Therefore, it is necessary to propose a color-changing wire warning device to solve the above problems. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] The purpose of this invention is to provide a color-changing wire warning device to solve the problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a color-changing wire warning device, including a thermochromic wire tube, an inlet is provided on one side of the thermochromic wire tube along its length direction, the edges of the thermochromic wire tube on both sides of the inlet extend outward to form sealing edges, a slot and a block are respectively provided on the corresponding side of the two sealing edges, the slot and the block are engaged to close the inlet, and an elastic thermally conductive liner is provided on the inner side of the thermochromic wire tube.
[0008] Preferably, the elastic thermally conductive liner includes elastic strips, and a plurality of the elastic strips are evenly distributed along the circumference of the thermochromic tube.
[0009] Preferably, the elastic thermally conductive liner includes elastic protrusions, and the interior of the thermochromic tube is uniformly provided with multiple elastic protrusions.
[0010] Preferably, the cross-section of the card block is umbrella-shaped, and the card slot is adapted to the card block.
[0011] Preferably, the thermochromic tube is a reversible thermochromic silicone tube.
[0012] Preferably, the inner diameter of the thermochromic tube is not less than the diameter of the wire to be coated.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, this utility model provides a color-changing wire warning device, which has the following beneficial effects:
[0015] 1. This color-changing conductor warning device uses a thermochromic conduit. When the conductor heats up, the heat is conducted to the thermochromic conduit through an elastic thermally conductive liner. The thermochromic conduit heats up and changes color, thus providing a visual warning and improving the safety and reliability of power transmission.
[0016] 2. This color-changing wire warning device, by setting an elastic heat-conducting liner, ensures the heat transfer effect between the wire and the thermochromic wire tube, so that the thermochromic wire tube can heat up and change color in time. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a side view of the elastic strip of this utility model;
[0019] Figure 3 This is a side view of the elastic protrusion of this utility model.
[0020] In the diagram: 1. Thermochromic conduit; 2. Elastic thermally conductive liner; 4. Elastic strip; 5. Cable inlet; 6. Slot; 7. Block; 8. Sealing edge; 9. Elastic protrusion. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Please see Figure 1-3 As shown, a color-changing wire warning device includes a thermochromic wire tube 1. An inlet 5 is provided on one side of the thermochromic wire tube 1 along its length. The edges of the thermochromic wire tube 1 on both sides of the inlet 5 extend outward to form sealing edges 8. A slot 6 and a block 7 are respectively provided on the corresponding side of the two sealing edges 8. The slot 6 and the block 7 are engaged to close the inlet 5. An elastic thermally conductive liner 2 is provided on the inner side of the thermochromic wire tube 1.
[0023] In use, the inlet 5 is opened and the thermochromic conduit 1 is fitted onto the outside of the wire. The two sealing edges 8 are pressed to make the locking block 7 snap into the slot 6. The elastic thermally conductive liner 2 is compressed and deforms elastically to fit tightly against the wire. When the wire heats up, the heat is conducted to the thermochromic conduit 1 through the elastic thermally conductive liner 2. The thermochromic conduit 1 heats up and changes color, thus providing a visual warning to help operators detect potential overheating problems in time, prevent equipment failures and safety accidents, and improve the safety and reliability of power transmission.
[0024] Specifically, the inner diameter of the thermochromic tube 1 should not be less than the diameter of the wire to be covered.
[0025] Due to the difference in wire diameter, in order to ensure the heat transfer effect between the wire and the thermochromic tube 1.
[0026] In some embodiments, the elastic thermally conductive liner 2 includes elastic strips 4, with multiple elastic strips 4 evenly distributed circumferentially along the thermochromic tube 1. After the thermochromic tube 1 is fitted over the outside of the wire, the elastic strips 4 undergo elastic deformation to fill the gap between the thermochromic tube 1 and the wire, thereby ensuring the heat transfer effect between the wire and the thermochromic tube 1 and ensuring that the thermochromic tube 1 produces accurate and timely color changes.
[0027] In some embodiments, the elastic thermally conductive liner 2 includes elastic protrusions 9, and a plurality of elastic protrusions 9 are uniformly distributed inside the thermochromic tube 1. By setting the granular elastic protrusions 9, after the thermochromic tube 1 is fitted onto the outside of the wire, the elastic strip 4 is compressed and generates elastic deformation to fill the gap between the wires, improves the fit, ensures the heat transfer effect between the wire and the thermochromic tube 1, and ensures that the thermochromic tube 1 produces color changes accurately and in a timely manner.
[0028] To ensure the stability of the connection between the two sealing edges 8, the cross-section of the locking block 7 is umbrella-shaped, and the locking groove 6 is adapted to the locking block 7. By using the locking block 7 with an umbrella-shaped cross-section, the locking block 7 is easy to insert into the locking groove 6, while making it difficult for it to fall out of the locking groove 6, thus ensuring the fastening connection effect.
[0029] Specifically, the thermochromic tube 1 is a reversible thermochromic silicone tube. When the temperature reaches a preset threshold, the color of the thermochromic tube 1 will change from its original state to another color, thus providing an immediate visual warning; it can return to its original color after the temperature drops. This means that once the temperature of the wire or equipment drops back to a safe range, the warning device will automatically return to its initial state without manual intervention, facilitating continuous monitoring of the equipment's temperature changes.
[0030] In summary, this color-changing conductor warning device is easy to install, as it can be directly attached to the surface of the conductor in question. Furthermore, this device requires minimal maintenance, needing only periodic checks to ensure the color change is normal. Due to its color-changing properties, this warning device provides an additional layer of protection for the safe operation of equipment. It reduces the need for manual monitoring, lowers the risk of equipment damage and safety accidents caused by overheating, and thus improves the safety of power transmission.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A color-changing wire warning device, characterized in that: The thermochromic cable includes a thermochromic tube (1), with an inlet (5) on one side along its length. The edges of the thermochromic tube (1) on both sides of the inlet (5) extend outward to form sealing edges (8). A groove (6) and a block (7) are provided on the corresponding side of the two sealing edges (8). The groove (6) and the block (7) are engaged to close the inlet (5). An elastic thermally conductive liner (2) is provided on the inner side of the thermochromic tube (1).
2. The color-changing wire warning device according to claim 1, characterized in that: The elastic thermally conductive liner (2) includes elastic strips (4), and multiple elastic strips (4) are evenly distributed around the thermochromic tube (1).
3. The color-changing wire warning device according to claim 1, characterized in that: The elastic thermally conductive liner (2) includes elastic bumps (9), and multiple elastic bumps (9) are evenly distributed inside the thermochromic tube (1).
4. The color-changing wire warning device according to claim 1, characterized in that: The cross-section of the card block (7) is umbrella-shaped, and the card slot (6) is adapted to the card block (7).
5. A color-changing wire warning device according to claim 1, characterized in that: The thermochromic tube (1) is a reversible thermochromic silicone tube.
6. A color-changing wire warning device according to claim 1, characterized in that: The inner diameter of the thermochromic tube (1) is not less than the diameter of the wire to be covered.