Manufacturing process of charging magnetic suction line

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Through the design of magnetic suction heads welded with SMD patches without shells and the use of specific materials, the complex and cost-effective magnetic suction wire structure of smart wearable electronic products is solved, and lightweight, miniaturization and high durability are achieved. , extends service life and improves safety.

CN119297698APending Publication Date: 2025-01-10HUIZHOU HEXIN ELECTRONICS CO LTD

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Patent Information

Application Number: CN202411236268.5
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-09-04
Publication Date: 2025-01-10

AI Technical Summary

Technical Problem

The charging magnetic suction wires of smart wearable electronic products pursue personalization and miniaturization, and the conventional magnetic suction heads have complex structures, resulting in increased costs and cumbersome processes, making it difficult to achieve lightweight and miniaturization.

Method used

Magnetic head design is designed without shell and PCB board SMD patch welding. Through the combination of external molding materials and internal molding materials, spring needles and magnets can reduce space occupation and improve welding precision, and combine wire cores of specific raw materials. The preparation process of the outer vessel and outer vessel material is optimized for the production process of the charging magnetic suction wire.

Benefits of technology

The magnetic suction wire is lightweight and miniaturized, reducing costs, improving service life, and enhancing safety and durability through the use of environmentally friendly materials and flame retardants.

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Abstract

The invention discloses a manufacturing process of a charging magnetic attraction wire, the charging magnetic attraction wire comprises a magnetic attraction head, an electric wire and a plug, the electric wire comprises a wire core, a wire core jacket and a jacket material, and the manufacturing process comprises the following steps: selecting a proper copper wire, carrying out wire drawing treatment on the copper wire through a wire drawing machine until the copper wire is treated to a proper diameter to be used as a conductor, wrapping the periphery of the conductor with an insulating layer to support a single conductor core, and selecting a plurality of conductor cores to be twisted together to form a wire core; manufacturing a wire core jacket and a jacket material, coating glue on the wire core jacket and the jacket material, wrapping the outer side of the wire core with the wire core jacket, and wrapping the outer side of the wire core jacket with the jacket material to complete the preparation of the wire; respectively connecting the two ends of the electric wire manufactured in the step 2 with a magnetic suction head and a plug, and pressing at the joint; and the magnetic suction head is optimized through process innovation and is changed into no-shell SMD patch welding with the PCB, so that the space is saved, the volume is reduced, and meanwhile, the welding is more precise.

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Description

Technical Field

[0001] The invention relates to the technical field of magnetic charging cable preparation, and in particular to a manufacturing process of a charging magnetic cable. Background Art

[0002] With the continuous advancement of science and technology and the continuous improvement of people's living standards, smart wearable electronic products have become an essential tool for people's lives and work. While smart wearable electronic products are constantly being updated and upgraded, products are constantly pursuing innovation, integrated and miniaturized product structures, and production and processing technologies are constantly optimizing new process innovations.

[0003] The charging magnetic cable used on smart wearable electronic products pursues personalization, miniaturization, and simple product structure. Conventional magnetic heads have shells and PCB board DIP plug-ins welded together, which makes the product structure complex, increases costs, and is complicated. It is also impossible to achieve lightweight and miniaturization. Therefore, we propose a manufacturing process for charging magnetic cables to solve the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to provide a manufacturing process of a charging magnetic wire to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A manufacturing process of a charging magnetic wire, the charging magnetic wire comprising a magnetic head, a wire and a plug, the wire comprising a wire core, a wire core sheath and a sheath material, and the manufacturing process comprises the following steps:

[0007] Step 1: Select a suitable copper wire and use a wire drawing machine to draw it until the copper wire is processed to a suitable diameter as a conductor, then wrap the conductor with an insulating layer to support a single conductor core, and select several conductor cores to twist together to form a wire core;

[0008] Step 2: Make the wire core sheath and sheath material, apply glue on the wire core sheath and sheath material, wrap the wire core sheath on the outside of the wire core, and wrap the sheath material on the outside of the wire core sheath to complete the preparation of the wire;

[0009] Step 3: Connect the two ends of the wire made in step 2 to the magnetic head and plug respectively, and press at the connection.

[0010] As a further solution of the present invention: the plug includes a PCB board assembly, an inner mold rubber is arranged on the outer side of the PCB board assembly, and an outer mold rubber is arranged on the outer side of the inner mold rubber.

[0011] As a further solution of the present invention: the magnetic suction head includes an outer mold rubber, an inner mold rubber is arranged inside the outer mold rubber, a spring pin is arranged on one side of the inner mold rubber, a magnet is arranged on one side of the spring pin, a PCB board assembly is arranged on one side of the magnet, and a bracket is arranged on one side of the PCB board assembly.

[0012] As a further solution of the present invention: Step 1: Select suitable copper wire, draw it through a wire drawing machine until the copper wire is processed to a suitable diameter as a conductor, then wrap an insulating layer around the conductor to support a single conductor core, select several conductor cores and twist them together to form a wire core, and the copper wire needs to be temperature treated when drawing it through a wire drawing machine.

[0013] As a further solution of the present invention: the temperature treatment of the copper wire includes the following steps: placing the conductor in a heating furnace for heating at a temperature of 850°C-950°C for 2.5h-3.5h, and then placing it in a quenching liquid for rapid cooling; placing the cooled conductor in the heating furnace again for heating to 300°C-550°C for 35min-50min, and then placing the conductor in a coolant for rapid cooling to room temperature for 15s-25s, taking it out, and wiping the surface.

[0014] As a further solution of the present invention: the outer sheath of the wire core comprises the following raw materials: 60-65 parts of chlorinated polyethylene, 3-4 parts of zinc oxide, 2-4 parts of white carbon black, 8-12 parts of flame retardant, 5-6 parts of sulfur powder, 3-6 parts of talcum powder, 7-10 parts of anti-aging agent, and 2-3 parts of plasticizer.

[0015] As a further solution of the present invention: the outer sheath of the wire core comprises raw materials: 60 parts of chlorinated polyethylene, 3 parts of zinc oxide, 4 parts of white carbon black, 12 parts of flame retardant, 5 parts of sulfur powder, 3 parts of talcum powder, 10 parts of anti-aging agent, and 3 parts of plasticizer.

[0016] As a further solution of the present invention: the outer sheath of the wire core comprises the following raw materials: 65 parts of chlorinated polyethylene, 3 parts of zinc oxide, 3 parts of white carbon black, 8 parts of flame retardant, 6 parts of sulfur powder, 6 parts of talcum powder, 7 parts of anti-aging agent, and 2 parts of plasticizer.

[0017] As a further solution of the present invention: the anti-aging agent comprises the following raw materials in parts by weight: 55 parts of aromatic oil, 35 parts of α-naphthylamine, 5 parts of emulsifier and 5 parts of water.

[0018] As a further solution of the present invention: the flame retardant is aluminum hydroxide powder, and the talcum powder is medical and food grade talcum powder.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The manufacturing process of the charging magnetic suction cable is that the magnetic suction head includes an outer mold rubber material, an inner mold rubber material is arranged inside the outer mold rubber material, a spring pin is arranged on one side of the inner mold rubber material, a magnet is arranged on one side of the spring pin, a PCB board assembly is arranged on one side of the magnet, and a bracket is arranged on one side of the PCB board assembly. Through process innovation and optimization, the magnetic suction head is changed to a shell-free and PCB board SMD patch welding, which saves space and reduces the volume. At the same time, the welding is also more precise, which is beneficial to extend the service life of the charging magnetic suction cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the charging magnetic wire in the present invention.

[0022] Figure 2 It is a schematic diagram of the assembly of the magnetic suction head in the present invention.

[0023] Figure 3 It is a cross-sectional schematic diagram of the wire material in the present invention.

[0024] Figure 4 It is a cross-sectional schematic diagram of the plug in the present invention.

[0025] Figure 5 It is a schematic diagram of the process of manufacturing the charging magnetic wire in the present invention.

[0026] Among them: 1. Magnetic head; 2. Electric wire; 3. Plug; 4. Wire core; 5. Wire core outer sheath; 6. Outer sheath material; 7. PCB board assembly; 8. Inner mold rubber; 9. Outer mold rubber; 10. Spring pin; 11. Magnet; 12. Bracket. DETAILED DESCRIPTION

[0027] In one embodiment, Figure 1-Figure 5 As shown, a manufacturing process of a charging magnetic wire, the charging magnetic wire includes a magnetic head 1, a wire 2 and a plug 3, the wire 2 includes a wire core 4, a wire core sheath 5 and a sheath material 6, and the manufacturing process includes the following steps:

[0028] Step 1: Select a suitable copper wire and use a wire drawing machine to draw it until the copper wire is processed to a suitable diameter as a conductor, then wrap an insulating layer around the conductor to support a single conductor core, and select a number of conductor cores to twist together to form a wire core 4;

[0029] Step 2: Make the wire core sheath 5 and the sheath material 6, apply glue on the wire core sheath 5 and the sheath material 6, wrap the wire core sheath 5 on the outside of the wire core 4, and wrap the sheath material 6 on the outside of the wire core sheath 5, to complete the preparation of the wire 2;

[0030] Step 3: Connect the two ends of the wire 2 made in step 2 to the magnetic head 1 and the plug 3 respectively, and press the connection points;

[0031] The plug 3 includes a PCB board assembly 7, an inner mold rubber material 8 is arranged on the outer side of the PCB board assembly 7, and an outer mold rubber material 9 is arranged on the outer side of the inner mold rubber material 8;

[0032] The magnetic suction head 1 includes an outer mold rubber material 9, an inner mold rubber material 8 is arranged inside the outer mold rubber material 9, a spring pin 10 is arranged on one side of the inner mold rubber material 8, a magnet 11 is arranged on one side of the spring pin 10, a PCB board assembly 7 is arranged on one side of the magnet 11, and a bracket 12 is arranged on one side of the PCB board assembly 7;

[0033] Step 1: Select a suitable copper wire, and use a wire drawing machine to draw it until the copper wire is processed to a suitable diameter as a conductor, then wrap the outer periphery of the conductor with an insulating layer to support a single conductor core, select several conductor cores and twist them together to form a wire core 4. When drawing it through a wire drawing machine, the copper wire needs to be temperature treated;

[0034] The temperature treatment of the copper wire includes the following steps: placing the conductor in a heating furnace for heating at a temperature of 850°C-950°C for 2.5h-3.5h, and then placing it in a quenching liquid for rapid cooling; placing the cooled conductor in the heating furnace again for heating to 300°C-550°C for 35min-50min, and then placing the conductor in a coolant for rapid cooling to room temperature for 15s-25s, taking it out, and wiping the surface;

[0035] The core sheath 5 includes raw materials: 60-65 parts of chlorinated polyethylene, 3-4 parts of zinc oxide, 2-4 parts of white carbon black, 8-12 parts of flame retardant, 5-6 parts of sulfur powder, 3-6 parts of talcum powder, 7-10 parts of anti-aging agent, and 2-3 parts of plasticizer;

[0036] Specifically, the core sheath 5 includes raw materials: 60 parts of chlorinated polyethylene, 3 parts of zinc oxide, 4 parts of white carbon black, 12 parts of flame retardant, 5 parts of sulfur powder, 3 parts of talcum powder, 10 parts of anti-aging agent, and 3 parts of plasticizer;

[0037] In another specific embodiment, the wire core sheath 5 comprises raw materials: 65 parts of chlorinated polyethylene, 3 parts of zinc oxide, 3 parts of white carbon black, 8 parts of flame retardant, 6 parts of sulfur powder, 6 parts of talcum powder, 7 parts of anti-aging agent, and 2 parts of plasticizer;

[0038] The anti-aging agent comprises the following raw materials in parts by weight: 55 parts of aromatic oil, 35 parts of α-naphthylamine, 5 parts of emulsifier and 5 parts of water; the flame retardant is aluminum hydroxide powder, and the talc is medical and food grade talc.

[0039] The method for preparing aluminum hydroxide powder comprises the following steps:

[0040] Select a sufficient amount of aluminum powder, filter and screen the aluminum powder using a filter sieve, weigh 20g of the filtered aluminum powder, and divide the 20g aluminum powder into two parts, aluminum powder A and aluminum powder B;

[0041] Add the dilute sulfuric acid solution into beaker a, then add aluminum powder A into beaker a in turn, and stir continuously for 10-15 minutes until the aluminum powder A completely reacts with the dilute sulfuric acid solution to obtain aluminum sulfate;

[0042] Add pure water and sodium hydroxide to beaker b in sequence, and then stir for 3-5 minutes until the sodium hydroxide is completely dissolved in the pure water to obtain a sodium hydroxide solution. Then add aluminum powder B to beaker b and stir continuously for 10-15 minutes until the aluminum powder B completely reacts with the sodium hydroxide solution to obtain sodium aluminate combined with two waters.

[0043] Add pure water to beaker c, then add the obtained aluminum sulfate and the obtained sodium aluminate combined with the two waters to beaker c in sequence, and stir for 15-20 minutes until the aluminum sulfate and the sodium aluminate combined with the two waters react completely in the pure water to obtain aluminum hydroxide precipitate and sodium sulfate solution;

[0044] Use filter paper to filter out the aluminum hydroxide precipitate, then place the filtered aluminum hydroxide precipitate on the filter paper and rinse it with pure water;

[0045] The washed aluminum hydroxide precipitate is added into a constant temperature drying oven, and dried in the constant temperature drying oven at 145°C-155°C for 15-20 minutes to obtain dried aluminum hydroxide. The dried aluminum hydroxide is then added into a double-sided grinder, and ground by the double-sided grinder. The aluminum hydroxide is then sieved by a vibrating screen to obtain aluminum hydroxide powder with a particle size of 0.08-0.4 mm.

[0046] Aluminum sulfate is first prepared by using dilute sulfuric acid and aluminum powder, and then sodium aluminate is prepared by using sodium hydroxide solution and aluminum powder to combine with two waters, and then aluminum sulfate and sodium aluminate are combined with two waters to react in pure water to obtain aluminum hydroxide precipitate and sodium sulfate solution, and then filtering, washing, drying, grinding and screening are performed in sequence to obtain aluminum hydroxide powder with a particle size of 0.08-0.4 mm. The preparation method is simple and efficient; the preparation method uses aluminum powder, sodium hydroxide and dilute sulfuric acid as raw materials, the raw materials are easy to obtain, the cost is low, and the conversion rate of aluminum hydroxide is high; at the same time, by washing the filtered aluminum hydroxide, impurities in the aluminum hydroxide can be reduced, thereby improving the purity of the aluminum hydroxide, and by grinding the dried aluminum hydroxide, the particle diameter of the aluminum hydroxide powder can be reduced, thereby achieving the purpose of increasing the surface area of the aluminum hydroxide, so that when the aluminum hydroxide is used in the flame retardant, it can play a better role.

[0047] The prepared wire core sheath 5 is environmentally friendly, has a long service life, and is highly flame retardant, which greatly reduces the probability of fire sources occurring and ensures the life safety of users.

[0048] The present invention comprises an outer mold rubber material, an inner mold rubber material is arranged inside the outer mold rubber material, a spring pin is arranged on one side of the inner mold rubber material, a magnet is arranged on one side of the spring pin, a PCB board assembly is arranged on one side of the magnet, and a bracket is arranged on one side of the PCB board assembly. Through process innovation and optimization, the magnetic suction head is changed into a shell-free and PCB board SMD patch welding, which saves space and reduces volume. At the same time, the welding is more precise, which is beneficial to prolonging the service life of the charging magnetic suction line.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A manufacturing process of a charging magnetic wire, characterized in that: The charging magnetic wire comprises a magnetic head (1), a wire (2) and a plug (3), wherein the wire (2) comprises a wire core (4), a wire core sheath (5) and a sheath material (6), and the preparation process thereof comprises the following steps: Step 1: Select a suitable copper wire and use a wire drawing machine to draw it until the copper wire is processed to a suitable diameter as a conductor, then wrap an insulating layer around the conductor to support a single conductor core, and select a plurality of conductor cores and twist them together to form a wire core (4); Step 2: Prepare the wire core sheath (5) and the sheath material (6), apply glue to the wire core sheath (5) and the sheath material (6), wrap the wire core sheath (5) around the outside of the wire core (4), and wrap the sheath material (6) around the outside of the wire core sheath (5), thereby completing the preparation of the wire (2); Step 3: Connect the two ends of the wire (2) made in step 2 to the magnetic head (1) and the plug (3) respectively, and press the connection points.

2. The manufacturing process of a charging magnetic wire according to claim 1, characterized in that: The plug (3) comprises a PCB board component (7), an inner mold rubber material (8) is arranged on the outer side of the PCB board component (7), and an outer mold rubber material (9) is arranged on the outer side of the inner mold rubber material (8).

3. The manufacturing process of a charging magnetic wire according to claim 2, characterized in that: The magnetic suction head (1) comprises an outer mold rubber (9), an inner mold rubber (8) is arranged inside the outer mold rubber (9), a spring pin (10) is arranged on one side of the inner mold rubber (8), a magnet (11) is arranged on one side of the spring pin (10), a PCB board assembly (7) is arranged on one side of the magnet (11), and a bracket (12) is arranged on one side of the PCB board assembly (7).

4. The manufacturing process of a charging magnetic wire according to claim 1, characterized in that: The step 1 is: selecting a suitable copper wire, and drawing it through a wire drawing machine until the copper wire is processed to a suitable diameter as a conductor, and then wrapping an insulating layer around the conductor to support a single conductor core, and selecting a plurality of conductor cores to twist together to form a wire core (4). When drawing it through the wire drawing machine, the copper wire needs to be subjected to temperature treatment.

5. The manufacturing process of a charging magnetic wire according to claim 4, characterized in that: The temperature treatment of the copper wire includes the following steps: placing the conductor in a heating furnace for heating at a temperature of 850°C-950°C for 2.5h-3.5h, and then placing it in a quenching liquid for rapid cooling; placing the cooled conductor in the heating furnace again for heating to 300°C-550°C for 35min-50min, and then placing the conductor in a coolant for rapid cooling to room temperature for 15s-25s, taking it out, and wiping the surface.

6. The manufacturing process of a charging magnetic wire according to claim 1, characterized in that: The core sheath (5) comprises the following raw materials: 60-65 parts of chlorinated polyethylene, 3-4 parts of zinc oxide, 2-4 parts of white carbon black, 8-12 parts of flame retardant, 5-6 parts of sulfur powder, 3-6 parts of talcum powder, 7-10 parts of anti-aging agent and 2-3 parts of plasticizer.

7. The manufacturing process of a charging magnetic wire according to claim 6, characterized in that: The wire core sheath (5) comprises the following raw materials: 60 parts of chlorinated polyethylene, 3 parts of zinc oxide, 4 parts of white carbon black, 12 parts of flame retardant, 5 parts of sulfur powder, 3 parts of talcum powder, 10 parts of anti-aging agent, and 3 parts of plasticizer.

8. The manufacturing process of a charging magnetic wire according to claim 6, characterized in that: The core sheath (5) comprises the following raw materials: 65 parts of chlorinated polyethylene, 3 parts of zinc oxide, 3 parts of white carbon black, 8 parts of flame retardant, 6 parts of sulfur powder, 6 parts of talcum powder, 7 parts of anti-aging agent and 2 parts of plasticizer.

9. The manufacturing process of a charging magnetic wire according to claim 6, characterized in that: The anti-aging agent comprises the following raw materials in parts by weight: 55 parts of aromatic oil, 35 parts of α-naphthylamine, 5 parts of emulsifier and 5 parts of water.

10. The manufacturing process of a charging magnetic wire according to claim 6, characterized in that: The flame retardant is aluminum hydroxide powder, and the talcum powder is medical and food grade talcum powder.