Cable marker sign and method of making same

Abstract

The application provides a cable sign indicating board and a manufacturing method thereof. The cable sign indicating board is arranged on a cable body. The cable sign indicating board comprises a silicon steel sheet, a first coil circuit, a second coil circuit, an LED light-emitting film and a character cover plate. The silicon steel sheet is arranged between the first coil circuit and the second coil circuit. The LED light-emitting film is provided with the second coil circuit on one side, and is provided with the character cover plate on the other side. The first coil circuit, the second coil circuit and the LED light-emitting film are electrically connected. The magnetic field generated by the cable is used for induction power generation, so that the cable sign indicating board can maintain a long-term self-luminous state in a dark environment.

Description

Technical Field

[0001] This invention relates to the field of cable maintenance, and more specifically to cable marking signs and their manufacturing methods. Background Technology

[0002] During cable maintenance, numerous cable markers are needed to indicate basic cable information such as cable line name, phase, and length. This facilitates verification of cable information by maintenance personnel, thus simplifying the maintenance process. Apart from directly buried cables, most cables are installed inside cable trenches or tunnels. Since these trenches or tunnels are typically dark, maintenance personnel must rely on their own light sources or the self-illuminating nature of the cable markers to clearly see the cable information.

[0003] Currently, self-illuminating cable signs mainly use luminescent resins with added luminescent agents or coatings with added fluorescent powder. These methods store light energy in advance and then slowly emit light as fluorescence after the light source is removed. The duration of this luminescence ranges from a few hours to over ten hours. However, because the amount of light received inside cable trenches or tunnels is extremely limited, and the internal lighting systems are often shut down or poorly maintained, cable signs relying on luminescent agents or fluorescent powder cannot be used reliably for extended periods. Summary of the Invention

[0004] Based on this, the present invention provides a cable sign and its manufacturing method, which generates electricity through magnetic field induction generated by the cable, thereby enabling the cable sign to maintain a long-term self-illuminating state in a dark environment.

[0005] In a first aspect, the present invention provides a cable marking sign, which is disposed on the cable body and includes: a silicon steel sheet, a first coil circuit, a second coil circuit, an LED light-emitting film, and a text cover plate;

[0006] The silicon steel sheet is disposed between the first coil circuit and the second coil circuit;

[0007] The second coil circuit is provided on one side of the LED light-emitting film, and a text cover plate is provided on the other side of the LED light-emitting film;

[0008] The first coil circuit and the second coil circuit are electrically connected to the LED light-emitting film.

[0009] Furthermore, the cable indicator also includes a battery, which is electrically connected to the first coil circuit and the second coil circuit.

[0010] Furthermore, rectifier circuits are provided in both the first and second coil circuits.

[0011] Furthermore, the cable indicator also includes a charge / discharge control circuit, which is electrically connected to the first coil circuit, the second coil circuit, and the battery.

[0012] Furthermore, the text cover plate is printed with cable information.

[0013] Secondly, the present invention also provides a method for manufacturing a cable sign, comprising:

[0014] Silicon steel sheets are treated with a dip-coating process to obtain plasticized silicon steel sheets;

[0015] The plasticized silicon steel sheet is etched to obtain an inductive circuit board.

[0016] An LED light-emitting film is disposed on one side of the electro-inductive circuit board, and the electro-inductive circuit board is electrically connected to the LED light-emitting film to obtain a preliminary indicator sign;

[0017] Lead wires are installed in the initial indicator to connect the battery and the charging / discharging control circuit, thus obtaining the cable indicator.

[0018] Furthermore, the method for manufacturing the cable sign further includes:

[0019] A text cover plate with cable information is provided on the light-emitting side of the LED light-emitting film.

[0020] Furthermore, the etching process performed on the plasticized silicon steel sheet to obtain the inductive circuit board specifically involves:

[0021] The plasticized silicon steel sheet is etched to create a coil circuit on each side of the silicon steel sheet, resulting in an inductive circuit board.

[0022] Furthermore, the coil circuit includes a rectifier circuit.

[0023] Furthermore, the lead wire is disposed on the side of the sign.

[0024] The beneficial effects of adopting the above technical solution are as follows: by using a coupling energy harvesting method combined with a battery, energy is harvested when there is a load on the cable line, thereby realizing the self-illumination of the cable sign. Furthermore, the energy storage and release process of the battery enables the cable sign to operate normally even without an induced electric field, achieving long-term illumination of the cable sign. Moreover, the material of the cable sign will not cause environmental pollution. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0026] Figure 1 This is a schematic diagram of a cable marking sign in one embodiment of this application;

[0027] Figure 2 This is a schematic diagram of a method for manufacturing a cable marker sign according to one embodiment of this application. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. To describe the present invention in more detail, the cable marking sign and its manufacturing method provided by the present invention will be specifically described below with reference to the accompanying drawings.

[0029] During cable maintenance, numerous cable markers are needed to indicate basic cable information such as cable line name, phase, and length. This facilitates verification of cable information by maintenance personnel, thus simplifying the maintenance process. Apart from directly buried cables, most cables are installed inside cable trenches or tunnels. Since these trenches or tunnels are typically dark, maintenance personnel must rely on their own light sources or the self-illuminating nature of the cable markers to clearly see the cable information.

[0030] In this regard, in conjunction with the appendix Figure 1 The diagram shown illustrates a cable marking sign. This invention provides a cable marking sign.

[0031] The cable marking sign is affixed to the cable body, and the cable marking sign includes:

[0032] Silicon steel sheet 101, first coil circuit 102, second coil circuit 103, LED light-emitting film 104, and text cover plate 105;

[0033] in,

[0034] The silicon steel sheet 101 is disposed between the first coil circuit 102 and the second coil circuit 103;

[0035] The second coil circuit 103 is provided on one side of the LED light-emitting film 104, and the text cover plate 105 is provided on the other side of the LED light-emitting film 104;

[0036] The first coil circuit 102 and the second coil circuit 103 are electrically connected to the LED light-emitting film 104.

[0037] Furthermore, the cable indicator also includes a battery 106, which is electrically connected to the first coil circuit 102 and the second coil circuit 103.

[0038] Specifically, rectifier circuits are provided in the first coil circuit 102 and the second coil circuit 103.

[0039] Specifically, the cable indicator also includes a charge / discharge control circuit, which is electrically connected to the first coil circuit 102, the second coil circuit 103, and the battery 106.

[0040] Specifically, the text cover plate 105 is printed with cable information. The cable information includes, but is not limited to, cable line name, phase, and cable length.

[0041] The working principle of the cable marking sign of this application is as follows: The cable marking sign is attached to the cable body by pasting or bundling. When the cable is running normally, the alternating magnetic field generated by the cable forms an alternating current in the first coil circuit 102 and the second coil circuit 103. After being converted into a DC circuit by the rectifier circuits in the first coil circuit 102 and the second coil circuit 103, part of the current powers the LED light-emitting film 104, and the other part of the current charges the battery 106 through the charge and discharge control circuit. When the cable stops running, the charge and discharge control circuit schedules the battery 106 to power the LED light-emitting film 104 to ensure that the cable marking sign continues to illuminate. In actual operation, the energized time of the cable line is much longer than the power outage time for maintenance, therefore the cable marking sign of this invention can always be in an illuminated state.

[0042] On the other hand, combined with the appendix Figure 2 The schematic diagram shown illustrates a method for manufacturing cable markers. This invention also provides a method for manufacturing the aforementioned cable markers, comprising:

[0043] Step S201: The silicon steel sheet is processed by dip coating process to obtain plasticized silicon steel sheet.

[0044] Silicon steel refers to silicon alloy steel with a silicon content of 1.0%-4.5% and a carbon content of less than 0.08%. It has characteristics such as high magnetic permeability, low coercivity, and large resistivity, resulting in relatively small hysteresis loss and eddy current loss.

[0045] Dip coating is a plastic coating process. According to the raw materials used in dip coating, it is divided into liquid dip coating and powder dip coating. It utilizes the properties of thermoplastic coatings, which can be softened by preheating and then cured into a film after cooling, to cover the silicon steel sheet with plastic.

[0046] Step S202: The plasticized silicon steel sheet is etched to obtain an inductive circuit board.

[0047] The etching process employs PCB etching technology, etching coil circuits onto a plasticized silicon steel sheet. This allows alternating current to be generated through the alternating magnetic field induced by the cable during operation.

[0048] Step S203: An LED light-emitting film is disposed on one side of the inductive circuit board, and the inductive circuit board is electrically connected to the LED light-emitting film to obtain a preliminary indicator.

[0049] Specifically, the electrical connection between the inductive circuit board and the LED light-emitting film is equivalent to the electrical connection between the coil circuit inside the inductive circuit board and the LED light-emitting film.

[0050] Step S204: Set leads in the preliminary indicator to connect the battery and the charge / discharge control circuit to obtain the cable indicator.

[0051] The battery stores electrical energy during cable operation and supplies power to the LED light-emitting film when the cable is not in operation. The charge / discharge control circuit controls the coil circuit to supply power to the LED light-emitting film while the cable is in operation, simultaneously supplying the stored electrical energy to the battery. When the cable is not in operation, the circuit switches to the battery supplying power to the LED light-emitting film.

[0052] Furthermore, the method for manufacturing the cable sign also includes step S205, which involves setting a text cover plate with cable information on the light-emitting side of the LED light-emitting film.

[0053] Specifically, the cable information on the text overlay includes, but is not limited to, cable line name, phase, and cable length.

[0054] In step S202, the plasticized silicon steel sheet is etched to obtain an inductive circuit board. Specifically, the plasticized silicon steel sheet is etched to generate a coil circuit on each side of the silicon steel sheet to obtain the inductive circuit board.

[0055] Furthermore, the coil circuit includes a rectifier circuit. The rectifier circuit is used to convert the alternating current into a direct current applicable to the LED light-emitting film.

[0056] Furthermore, to reduce the impact of the lead wires on the appearance of the cable marking sign, the lead wires are placed on the side of the sign.

[0057] The working principle of the cable marker produced by this method is as follows: The cable marker is attached to the cable body by pasting or bundling. When the cable is running normally, the alternating magnetic field generated by the cable forms an alternating current in the coil circuit. After being converted into a DC circuit by the rectifier circuit in the coil circuit, part of the current powers the LED light-emitting film 104, and the other part of the current charges the battery 106 through the charge-discharge control circuit. When the cable stops running, the charge-discharge control circuit schedules the battery 106 to power the LED light-emitting film 104 to ensure that the cable marker continues to illuminate. In actual operation, the energized time of the cable line is much longer than the power outage time for maintenance, so the cable marker of this invention can always be illuminated. Furthermore, no environmentally polluting materials are used in the manufacturing process, making the cable marker environmentally friendly.

[0058] The above 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.

Claims

1. A cable marking sign, characterized in that, The cable marking sign is installed on the cable body, and the cable marking sign includes: silicon steel sheet, first coil circuit, second coil circuit, LED light-emitting film and text cover plate; The silicon steel sheet is disposed between the first coil circuit and the second coil circuit; The second coil circuit is provided on one side of the LED light-emitting film, and a text cover plate is provided on the other side of the LED light-emitting film; The first coil circuit and the second coil circuit are electrically connected to the LED light-emitting film; It also includes a battery, which is electrically connected to the first coil circuit and the second coil circuit; A rectifier circuit is provided in both the first coil circuit and the second coil circuit. The cable indicator also includes a charge / discharge control circuit, which is electrically connected to the first coil circuit, the second coil circuit, and the battery.

2. The cable marking sign as described in claim 1, characterized in that, The text overlay plate is printed with cable information.

3. A method for manufacturing a cable marker sign, characterized in that, include: Silicon steel sheets are treated with a dip-coating process to obtain plasticized silicon steel sheets; The plasticized silicon steel sheet is etched to obtain an inductive circuit board. An LED light-emitting film is disposed on one side of the electro-inductive circuit board, and the electro-inductive circuit board is electrically connected to the LED light-emitting film to obtain a preliminary indicator sign; A lead wire is installed in the preliminary indicator to connect the battery and the charge / discharge control circuit, thus obtaining a cable indicator; The process of etching the plasticized silicon steel sheet to obtain the inductive circuit board specifically involves: The plasticized silicon steel sheet is etched to create a coil circuit on each side of the silicon steel sheet, thus obtaining an inductive circuit board. The coil circuit includes a rectifier circuit.

4. The method for manufacturing cable marker signs as described in claim 3, characterized in that, Also includes: A text cover plate with cable information is provided on the light-emitting side of the LED light-emitting film.

5. The method for manufacturing cable markers as described in claim 3, characterized in that, The lead wire is located on the side of the sign.

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