Electroluminescent cable
By winding a magnetic induction coil around the cable core and using the magnetic field to generate an induced electromotive force for power supply, the problem of traditional electroluminescent cables failing to light up in the absence of power is solved, enabling the cable to be visualized in low-light environments and preventing damage.
Patent Information
- Application Number
- CN202511332813.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2025-12-30
AI Technical Summary
Traditional electroluminescent cables cannot light up in the absence of voltage, making them difficult for workers to notice in low-light environments and easily damaged.
By winding a magnetic induction coil around the power core, control core, or auxiliary core of a cable, an induced electromotive force is generated by the cutting of a magnetic field to power the LED light-emitting unit, enabling it to emit light in low-light environments.
It enables the visualization of cables in the absence of power, reduces damage caused by insufficient light, and extends the service life of cables.
Smart Images
Figure CN121237502A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cable technology, specifically to an electroluminescent cable. Background Technology
[0002] With the continuous improvement of technology, the service life of cables has been greatly extended. However, in some special environments, such as open-pit coal mines, underground coal mines, port machinery, and some nighttime operation sites, dragged and moved cables are often exposed to the external environment. At night or in dim light, the cables are difficult for workers to notice, leading to frequent damage such as being run over by construction vehicles or collided with machinery, thus shortening the cable's service life and greatly increasing the cost of use. Based on this, luminous cables have emerged.
[0003] Traditional electroluminescent cables often require a low-voltage DC power supply through an electrical cabinet to light up the cable. However, electrical cabinets in typical outdoor applications often lack the appropriate voltage to light up the cable, preventing traditional electroluminescent cables from being illuminated. Summary of the Invention
[0004] In view of this, this application provides an electroluminescent cable that can generate an induced electromotive force by cutting a magnetic field through a coil to power an LED light-emitting unit, making the electroluminescent cable visible in low-light environments and preventing damage to the electroluminescent cable.
[0005] To achieve the above objectives, this application adopts the following technical solution:
[0006] This application provides an electroluminescent cable, including an LED light-emitting unit, a cable core, and an outer sheath. The outer sheath covers the cable core and the LED light-emitting unit. The cable core includes a power cable core, a grounding cable core, and an auxiliary cable core or a control cable core. The cable core also includes magnetic induction wires. The outer sheath is made of a transparent or semi-transparent polymer material.
[0007] The magnetic induction line includes a first magnetic induction coil, which is disposed on the outermost layer of the power wire core. The positive and negative terminals of the LED light-emitting unit are connected to the two ends of the first magnetic induction coil. When the power wire core is energized, the first magnetic induction coil generates an induced electromotive force to power the LED light-emitting unit; or...
[0008] The magnetic induction line includes a second magnetic induction coil, which is disposed on the outermost layer of the auxiliary wire core. The positive and negative terminals of the LED light-emitting unit are connected to the two ends of the second magnetic induction coil. After the auxiliary wire core is energized, the second magnetic induction coil generates an induced electromotive force to power the LED light-emitting unit; or...
[0009] The magnetic induction line includes a third magnetic induction coil, which is disposed on the outermost layer of the control wire core. The positive and negative poles of the LED light-emitting unit are connected to the two ends of the third magnetic induction coil. After the control wire core is energized, the third magnetic induction coil generates an induced electromotive force to power the LED light-emitting unit.
[0010] In some embodiments, the number of power cores is two or more, and the outermost layer of each power core is provided with the first magnetic induction coil, or the outermost layer of at least one power core is provided with the first magnetic induction coil.
[0011] In some embodiments, the power core includes, from the inside out, a power conductor, a power conductor shielding layer, a power core insulation layer, an insulation shielding layer, and the first magnetic induction coil. The first magnetic induction coil is formed by multiple wires wound in parallel outside the insulation shielding layer, or by multiple wires wound inside the insulation shielding layer.
[0012] In some embodiments, the LED light-emitting unit includes an LED light strip and a transparent polymer protective layer, the transparent polymer protective layer being wrapped around the LED light strip; the LED light-emitting unit is placed in the gap between the power cores, or placed together with the auxiliary cores or control cores, and a protective layer is extruded around it.
[0013] In some embodiments, the LED light strip includes a plurality of sequentially connected light-emitting sub-units, each light-emitting sub-unit corresponding to a wire of the first magnetic induction coil, and the positive and negative poles of each light-emitting sub-unit are respectively connected to the two ends of the corresponding wire.
[0014] In some embodiments, the number of power wire cores is one, the number of LED light-emitting units is one, and the positive and negative terminals of the LED light-emitting unit are respectively connected to the two ends of the first magnetic induction coil; or,
[0015] The number of power wire cores is one, and the number of LED light-emitting units is two or more, with the positive and negative terminals of each LED light-emitting unit connected to both ends of the first magnetic induction coil; or,
[0016] The number of power wire cores is two or more, the number of LED light-emitting units is one, and both ends of the first magnetic induction coil of each power wire core are connected to the positive and negative terminals of the LED light-emitting unit; or,
[0017] The number of power wire cores is two or more, and the number of LED light-emitting units is two or more. When the number of power wire cores is greater than the number of LED light-emitting units, the positive and negative poles of each LED light-emitting unit are connected to the two ends of the first magnetic induction coil of at least one power wire core. When the number of power wire cores is less than the number of LED light-emitting units, the two ends of the first magnetic induction coil of each power wire core are connected to at least one positive and negative pole of each LED light-emitting unit. When the number of power wire cores is equal to the number of LED light-emitting units, the two ends of the first magnetic induction coil of each power wire core are connected to one positive and one negative pole of each LED light-emitting unit.
[0018] In some embodiments, the number of power wires is three, the number of LED light-emitting units is three, and each LED light-emitting unit corresponds to one power wire.
[0019] In some embodiments, the power core further includes a steel wire disposed inside the power conductor, and the power conductor is wrapped around the steel wire.
[0020] In some embodiments, the auxiliary core comprises, from the inside out, a reinforcing steel wire, an auxiliary core conductor, an auxiliary core insulation layer, and a second magnetic induction coil. The second magnetic induction coil is formed by multiple wires wound in parallel around the auxiliary core insulation layer, or by multiple wires wound around the auxiliary core insulation layer.
[0021] In some embodiments, the control core comprises, from the inside out, a reinforcing steel wire, a control core conductor, a control core insulation layer, and a third magnetic induction coil. The third magnetic induction coil is formed by multiple wires wound in parallel around the control core insulation layer, or by multiple wires wound around the control core insulation layer.
[0022] The beneficial effects of the embodiments of this application compared with the prior art include:
[0023] When the above-mentioned electroluminescent cable is used for power supply, the power core, control core, or auxiliary core generates a magnetic field after being energized. The magnetic induction wires are wound around the power core, control core, or auxiliary core, which can cut the magnetic field to generate an induced electromotive force. The two ends of the magnetic induction wires are connected to the positive and negative poles of the LED light-emitting unit, so that the induced electromotive force supplies power to the LED light-emitting unit, thereby lighting up the LED light-emitting unit. Therefore, in environments with insufficient light, the electroluminescent cable can be clearly noticed by the staff, thereby preventing damage to the electroluminescent cable. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the structure of an electroluminescent cable provided in an embodiment of this application;
[0026] Figure 2 This is a schematic diagram of the structure of another electroluminescent cable provided in the embodiments of this application;
[0027] Figure 3 This is a schematic diagram of the structure of the power conductor provided in the embodiments of this application;
[0028] Figure 4 This is a schematic diagram of the structure of the LED light-emitting unit provided in the embodiments of this application. Detailed Implementation
[0029] The present application will be described more clearly below with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the function of the present application, but do not limit the present application in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application. These all fall within the protection scope of the present application.
[0030] To make the objectives, technical solutions, and advantages of this application clearer, the following description will be provided in conjunction with the accompanying drawings and specific embodiments.
[0031] See Figure 1 and Figure 2 The electroluminescent cable provided in this application embodiment may include an LED (Light Emitting Diode) light-emitting unit 10, a cable core (not shown in the figure), and an outer sheath 30. The outer sheath 30 covers the cable core and the LED light-emitting unit 10. The cable core includes a power cable core 21, a grounding cable core 22, and an auxiliary cable core or a control cable core 23. The power cable core also includes magnetic induction wires. The outer sheath is made of transparent or semi-transparent material.
[0032] The magnetic induction line includes a first magnetic induction coil, which is disposed on the outermost layer of the power wire core 21. The positive and negative poles of the LED light-emitting unit 10 are connected to the two ends of the first magnetic induction coil. After the power wire core 21 is energized, the first magnetic induction coil generates an induced electromotive force to power the LED light-emitting unit 10.
[0033] Alternatively, the magnetic induction line includes a second magnetic induction coil, which is disposed on the outermost layer of the auxiliary wire core. The positive and negative poles of the LED light-emitting unit 10 are connected to the two ends of the second magnetic induction coil. After the auxiliary wire core is energized, the second magnetic induction coil generates an induced electromotive force to power the LED light-emitting unit 10.
[0034] Alternatively, the magnetic induction line may include a third magnetic induction coil, which is disposed on the outermost layer of the control wire core, and the positive and negative terminals of the LED light-emitting unit 10 are connected to the two ends of the third magnetic induction coil. After the control wire core is energized, the third magnetic induction coil generates an induced electromotive force to power the LED light-emitting unit 10.
[0035] When the above-mentioned electroluminescent cable is used for power supply, the power core, control core, or auxiliary core generates a magnetic field after being energized. The magnetic induction wires are wound around the power core, control core, or auxiliary core, which can cut the magnetic field to generate an induced electromotive force. The two ends of the magnetic induction wires are connected to the positive and negative poles of the LED light-emitting unit, so that the induced electromotive force supplies power to the LED light-emitting unit, thereby lighting up the LED light-emitting unit. Therefore, in environments with insufficient light, the electroluminescent cable can be clearly noticed by the staff, thereby preventing damage to the electroluminescent cable.
[0036] For example, the magnetic induction coil can be made of copper, with no less than 50 turns per meter, generating an induced electromotive force of about 5V-10V and a current of about 70mA-120A. The operating voltage required by the LED light-emitting unit is usually 5V, and the induced electromotive force generated by the magnetic induction coil can light up the LED light-emitting unit.
[0037] in, Figure 1 and Figure 2 23 in the figure represents either an auxiliary core or a control core. Additionally, the aforementioned electroluminescent cable may include both auxiliary and control cores simultaneously.
[0038] Optionally, the number of power cores 21 is two or more, and the outermost layer of each power core is provided with the first magnetic induction coil, or the outermost layer of at least one power core is provided with the first magnetic induction coil.
[0039] For example, there can be one power core 21. The outermost layer of the power core is provided with a first magnetic induction coil, and a metal shielding wire is also provided inside the first magnetic induction coil. The first magnetic induction coil and the metal shielding wire are located in the same layer. When the power core 21 is energized, it generates a magnetic field. The first magnetic induction coil cuts the magnetic field to generate an induced electromotive force, which powers the LED light-emitting unit 10.
[0040] For example, the number of power cores 21 can be two or more, with a first magnetic induction coil disposed on the outermost layer of one of the power cores. A metal shielding wire is also disposed within the first magnetic induction coil, and the first magnetic induction coil and the metal shielding wire are located on the same layer. When the power core 21 is energized, it generates a magnetic field. The first magnetic induction coil cuts the magnetic field to generate an induced electromotive force, which powers the LED light-emitting unit 10.
[0041] For example, the number of power cores 21 can be two or more, and each power core has a first magnetic induction coil on its outermost layer. A metal shielding wire is also provided in the first magnetic induction coil, and the first magnetic induction coil and the metal shielding wire are located in the same layer. When the power core 21 is energized, it generates a magnetic field. The first magnetic induction coil cuts the magnetic field to generate an induced electromotive force, which together power the LED light-emitting unit 10.
[0042] See Figure 3 In some embodiments, the power core 21 comprises, from the inside out, a power conductor 211, a power conductor shielding layer 212, a power core insulation layer 213, an insulation shielding layer 214, and a first magnetic induction coil 215. The first magnetic induction coil 215 is formed by multiple wires wound in parallel around the insulation shielding layer 214. When the power core 21 is energized, it generates a magnetic field. The first magnetic induction coil, wound around the outside of the power core 21, cuts the magnetic field to generate an induced electromotive force, thus supplying power to the LED light-emitting unit 10.
[0043] Optionally, the power core 21 may further include a steel wire 216, which is disposed inside the power conductor 211, and the power conductor 211 is wrapped around the steel wire 216. The steel wire 216 disposed inside the power conductor 211 can improve the tensile strength of the power core 21.
[0044] See Figure 1 , Figure 2 and Figure 4 In some embodiments, the LED light-emitting unit 10 may include an LED light strip 11 and a transparent polymer protective layer 12. The transparent polymer protective layer 12 is wrapped around the LED light strip 11. The LED light-emitting unit 10 is placed in the gap between the power cores 21 near the edge of the cable, or placed together with the auxiliary cores or control cores 23, and a protective layer is extruded.
[0045] For example, Figure 1 In the middle, the LED light-emitting unit 10 is attached to the power wire core 21, partially wrapped around the power wire core 21, or located in the gap between the power wire cores 21 near the edge of the cable. Figure 2 In the middle, the LED light-emitting unit 10 is attached to the auxiliary wire core or control wire core 23 and is partially wrapped around the auxiliary wire core or control wire core 23.
[0046] Optionally, the LED light strip 11 includes a plurality of light-emitting sub-units connected in sequence, each light-emitting sub-unit corresponding to a wire of the first magnetic induction coil, and the positive and negative poles of each light-emitting sub-unit are respectively connected to the two ends of the corresponding wire.
[0047] For example, the LED light strip 11 may include multiple LED beads connected in series, and each light-emitting sub-unit may include at least one LED bead. The first magnetic induction coil may be composed of multiple wires, with each light-emitting sub-unit corresponding to one wire, and the positive and negative poles of each light-emitting sub-unit connected to the two ends of the corresponding wire. Alternatively, the first magnetic induction coil may be divided into multiple segments along the length of the power core, with each light-emitting sub-unit corresponding to one segment of the coil, and the positive and negative poles of each light-emitting sub-unit connected to the two ends of the corresponding coil.
[0048] In some scenarios, there is one power wire core 21 and one LED light-emitting unit 10, with the positive and negative poles of the LED light-emitting unit connected to the two ends of the first magnetic induction coil, respectively.
[0049] In some other scenarios, there is one power core 21 and two or more LED light-emitting units 10. The positive and negative poles of each LED light-emitting unit are connected to both ends of the first magnetic induction coil, and one first magnetic induction coil supplies power to all LED light-emitting units at the same time.
[0050] In some other scenarios, there are two or more power cores 21 and one LED light-emitting unit 10. Both ends of the first magnetic induction coil of each power core are connected to the positive and negative terminals of the LED light-emitting unit, and all the first magnetic induction coils simultaneously power one LED light-emitting unit.
[0051] In some other scenarios, the number of power wire cores 21 is two or more, and the number of LED light-emitting units 10 is two or more.
[0052] When the number of power cores 21 is greater than the number of LED light-emitting units 10, the positive and negative poles of each LED light-emitting unit are connected to the two ends of the first magnetic induction coil of at least one of the power cores. In this case, each LED light-emitting unit can correspond to one coil, that is, one first magnetic induction coil supplies power to one LED light-emitting unit; or there can be multiple coils corresponding to LED light-emitting units, that is, multiple first magnetic induction coils supply power to one LED light-emitting unit.
[0053] When the number of power cores 21 is less than the number of LED light-emitting units 10, the two ends of the first magnetic induction coil of each power core are connected to at least one positive and negative pole of each LED light-emitting unit. In this case, for a portion of the power cores, each power core can correspond to one LED light-emitting unit, meaning the first magnetic induction coil of each power core powers one corresponding LED light-emitting unit; for the remaining power cores, each power core can correspond to multiple LED light-emitting units, meaning the first magnetic induction coil of each power core powers multiple corresponding LED light-emitting units.
[0054] When the number of power cores 21 equals the number of LED light-emitting units 10, the two ends of the first magnetic induction coil of each power core are connected to the positive and negative terminals of each LED light-emitting unit. In this case, there is a one-to-one correspondence between the power cores and LED light-emitting units, and the first magnetic induction coil of each power core supplies power to the corresponding LED light-emitting unit.
[0055] See Figure 1 In some embodiments, the number of power cores 21 is three, and the number of LED light-emitting units 10 is three, with each LED light-emitting unit 10 corresponding to one power core 21. The three power cores are connected in pairs, and the three LED light-emitting units are partially wrapped around the three power cores. The three power cores are evenly distributed around the axis of the electroluminescent cable, ensuring that the three LED light-emitting units are evenly distributed around the axis of the electroluminescent cable. By providing one LED light-emitting unit for each power core, and ensuring that the three LED light-emitting units are evenly distributed around the axis of the electroluminescent cable, the electroluminescent cable can emit light at all angles. This makes the electroluminescent cable more noticeable to users in low-light environments and better prevents damage to the electroluminescent cable.
[0056] In some embodiments, the auxiliary core includes, from the inside out, a reinforcing steel wire, an auxiliary core conductor, an auxiliary core insulation layer, and a second magnetic induction coil. The second magnetic induction coil is formed by multiple wires wound in parallel around the auxiliary core insulation layer, or by multiple wires wound around the auxiliary core insulation layer.
[0057] In some embodiments, the control core comprises, from the inside out, a reinforcing steel wire, a control core conductor, a control core insulation layer, and a third magnetic induction coil. The third magnetic induction coil is formed by multiple wires wound in parallel around the control core insulation layer, or by multiple wires wound around the control core insulation layer.
[0058] In this embodiment, the outer protective layer 30 is made of a transparent or semi-transparent polymer material, and the transparent protective layer 12 is made of a transparent or semi-transparent polymer material.
[0059] In this embodiment, the LED light-emitting unit can be equipped with a power connector, and the two ends of the coil can be connected to the positive and negative terminals of the power connector. When the LED light-emitting unit comprises multiple sequentially connected light-emitting sub-units, each light-emitting sub-unit can have an external power connector connected to its positive and negative terminals, and the two ends of each wire of the coil can be connected to the corresponding positive and negative terminals of the power connector. Alternatively, the LED light-emitting unit can comprise multiple sequentially connected light-emitting sub-units, and the coil can be divided into multiple segments along the length of the power core, with each light-emitting sub-unit corresponding to one segment of the coil, and the positive and negative terminals of the power connector of each light-emitting sub-unit connected to the two ends of the corresponding coil.
[0060] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.
Claims
1. An electroluminescent cable, characterized by The cable comprises an LED light unit, a cable core and an outer sheath, the outer sheath is wrapped outside the cable core and the LED light unit, the cable core comprises a power cable core and a ground cable core as well as an auxiliary cable core or a control cable core, the cable core further comprises a magnetic induction wire, and the outer sheath is made of transparent or semi-transparent polymer material; The magnetic induction wire comprises a first magnetic induction coil, the first magnetic induction coil is arranged at the outermost layer of the power cable core, the positive and negative electrodes of the LED light unit are connected to the two ends of the first magnetic induction coil, and the first magnetic induction coil generates an induced electromotive force to supply power to the LED light unit after the power cable core is electrified; or The magnetic induction wire comprises a second magnetic induction coil, the second magnetic induction coil is arranged at the outermost layer of the auxiliary cable core, the positive and negative electrodes of the LED light unit are connected to the two ends of the second magnetic induction coil, and the second magnetic induction coil generates an induced electromotive force to supply power to the LED light unit after the auxiliary cable core is electrified; or The magnetic induction wire comprises a third magnetic induction coil, the third magnetic induction coil is arranged at the outermost layer of the control cable core, the positive and negative electrodes of the LED light unit are connected to the two ends of the third magnetic induction coil, and the third magnetic induction coil generates an induced electromotive force to supply power to the LED light unit after the control cable core is electrified.
2. The electroluminescent cable according to claim 1, characterized in that, The number of the power cable cores is two or more, and the outermost layer of each power cable core is provided with the first magnetic induction coil, or the outermost layer of at least one power cable core is provided with the first magnetic induction coil.
3. The electroluminescent cable of claim 2, wherein, The power cable core comprises, from inside to outside, a power cable conductor, a power cable core conductor shielding layer, a power cable core insulation layer, an insulation shielding layer and the first magnetic induction coil, the first magnetic induction coil is formed by parallel winding of a plurality of wires outside the insulation shielding layer or by winding of a plurality of wires in the insulation shielding layer.
4. The electroluminescent cable of claim 3, wherein, The LED light unit comprises an LED light strip and a transparent polymer protective layer, and the transparent polymer protective layer is wrapped outside the LED light strip; the LED light unit is placed in a gap between the power cable cores close to the edge of the cable or together with the auxiliary cable core or the control cable core and is extruded with a protective layer.
5. The electroluminescent cable of claim 4, wherein, The LED light strip comprises a plurality of sequentially connected light emitting subunits, each light emitting subunit corresponds to one wire of the first magnetic induction coil, and the positive and negative electrodes of each light emitting subunit are connected to the two ends of the corresponding wire.
6. The electroluminescent cable of claim 3, wherein, The number of the power cable cores is one, and the number of the LED light units is one, the positive and negative electrodes of the LED light unit are connected to the two ends of the first magnetic induction coil; or The number of the power cable cores is one, and the number of the LED light units is two or more, the positive and negative electrodes of each LED light unit are connected to the two ends of the first magnetic induction coil; or The number of the power cable cores is two or more, and the number of the LED light units is one, the two ends of the first magnetic induction coil of each power cable core are connected to the positive and negative electrodes of the LED light unit; or The number of the power line core is two or more, and the number of the LED light emitting unit is two or more, when the number of the power line core is greater than the number of the LED light emitting unit, the positive and negative poles of each LED light emitting unit are connected to the two ends of the first magnetic induction coil of at least one power line core; when the number of the power line core is less than the number of the LED light emitting unit, the two ends of the first magnetic induction coil of each power line core are connected to the positive and negative poles of at least one LED light emitting unit; When the number of the power line core is equal to the number of the LED light emitting unit, the two ends of the first magnetic induction coil of each power line core are connected to the positive and negative poles of one LED light emitting unit.
7. The electroluminescent cable of claim 3, wherein, The number of the power line core is three, and the number of the LED light emitting unit is three, and each LED light emitting unit corresponds to one power line core.
8. The electroluminescent cable of claim 3, wherein, The power line core further comprises a steel wire, and the steel wire is arranged inside the power line conductor, and the power line conductor is wrapped outside the steel wire.
9. The electroluminescent cable of claim 1, wherein, The auxiliary line core comprises, from inside to outside, a reinforcing steel wire, an auxiliary line core conductor, an auxiliary line core insulation layer and the second magnetic induction coil, the second magnetic induction coil is formed by parallel winding a plurality of wires outside the auxiliary line core insulation layer or by winding a plurality of wires in the auxiliary line core insulation layer.
10. The electroluminescent cable of claim 1, wherein, The control line core comprises, from inside to outside, a reinforcing steel wire, a control line core conductor, a control line core insulation layer and the third magnetic induction coil, the third magnetic induction coil is formed by parallel winding a plurality of wires outside the control line core insulation layer or by winding a plurality of wires in the control line core insulation layer.