Low-temperature soldering tin type polyurethane enameled round copper wire for multi-strand stranded wire

Abstract

The utility model discloses a low-temperature soldering tin type polyurethane enameled round copper wire for a multi-strand stranded wire, which comprises a wire body and a fixing sleeve sleeved on the outer wall of the wire body, and further comprises a tensile mechanism arranged in the wire body, a conductor is arranged in the wire body, the outer wall of the conductor is connected with an elastic layer, and the elastic layer is arranged on the outer wall of the wire body. A plurality of equidistantly distributed fiber bodies are embedded in the elastic layer; and the insulating mechanism is arranged on the outer wall of the elastic layer. The low-temperature soldering tin type polyurethane enameled round copper wire for the multi-strand stranded wire has the effect of improving the tensile property and the electrical insulation property of the wire body.

Description

Technical Field

[0001] The utility model relates to the technical field of enameled round wires, in particular to a low-temperature solder-type polyurethane enameled round copper wire for multi-strand twisted wires. Background Art

[0002] Multi-strand stranded wire is a wire made by simply winding multiple wires. It has no insulation layer and only one or more layers of conductors, while low-temperature solderable polyurethane enameled copper round wire is a copper round wire with a specific coating.

[0003] Patent document No. 201020246687.4 discloses a low-temperature direct-welding, residue-free, environmentally friendly enameled copper round wire, which is characterized in that it includes a copper round wire coated with a first insulating layer and a second insulating layer, the second insulating layer is coated on the outside of the first insulating layer, and the first insulating layer is a 180-grade polyurethane paint.

[0004] However, traditional multi-strand twisted wires use low-temperature solder-type polyurethane enameled copper round wires, which are easily broken or damaged when stretched or twisted by external forces. They have poor tensile strength and durability, and the insulation effect is not ideal. Current leakage to the external environment may lead to a decline in electrical performance and poor safety. Utility Model Content

[0005] The utility model discloses a low-temperature solderable polyurethane enameled copper round wire for multi-strand twisted wires, aiming to solve the technical problems of easy breakage or damage when stretched or twisted by external force, poor tensile strength and durability, unsatisfactory insulation effect, current leakage to the external environment, possible degradation of electrical performance, and poor safety.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A low-temperature solderable polyurethane enameled copper round wire for a multi-strand twisted wire comprises a wire body and a fixing sleeve sleeved on the outer wall of the wire body, and further comprises:

[0008] Tensile mechanism: The tensile mechanism is arranged inside the wire body, a conductor is arranged inside the wire body, an elastic layer is connected to the outer wall of the conductor, and a plurality of equidistantly distributed fiber bodies are embedded in the elastic layer;

[0009] Insulation mechanism: The insulation mechanism is arranged on the outer wall of the elastic layer.

[0010] In this case, by connecting an elastic layer to the outer wall of the conductor and embedding equidistantly distributed fiber bodies inside the elastic layer, stress can be dispersed more effectively, breakage can be prevented, and the tensile strength of the overall structure can be enhanced, thereby improving the service life and reliability of the cable. The presence of the elastic layer allows the cable to maintain sufficient strength while also having a certain degree of flexibility, which enables the cable to maintain stable performance in complex environments such as bending and twisting and is not easily damaged. The embedding of the fiber body can further fix the shape of the conductor and prevent the conductor from deforming or shifting when subjected to external force, thereby ensuring the stability of the cable's electrical performance.

[0011] In a preferred solution, the insulating mechanism includes a first insulating layer, the outer wall of the first insulating layer is wavy, and the inner wall of the first insulating layer is connected to a second insulating layer.

[0012] The design of two layers of insulation provides double electrical isolation for the cable, ensuring that the current flows inside the conductor and does not leak into the external environment, thereby improving the electrical safety of the cable. The wavy design of the outer wall of the first insulation layer improves the mechanical strength of the cable. When the cable is subjected to external force, it can better disperse the stress and prevent the insulation layer from breaking or being damaged. At the same time, it increases the contact area between the wires, making the wires more tightly twisted and the structure more stable.

[0013] As can be seen from the above, a low-temperature solderable polyurethane enameled copper round wire for multi-strand twisted wire includes a wire body and a fixed sleeve sleeved on the outer wall of the wire body. It also includes: a tensile resistance mechanism disposed within the wire body, a conductor disposed within the wire body, an elastic layer connected to the outer wall of the conductor, and a plurality of equidistantly distributed fiber bodies embedded within the elastic layer; and an insulating mechanism disposed on the outer wall of the elastic layer. The low-temperature solderable polyurethane enameled copper round wire for multi-strand twisted wire provided by this utility model has the technical effect of improving the tensile resistance and electrical insulation performance of the wire body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a schematic diagram of the overall structure of a low-temperature solderable polyurethane enameled round copper wire for multi-strand twisted wires.

[0015] Figure 2 The utility model provides a schematic cross-sectional structure diagram of a low-temperature solderable polyurethane enameled round copper wire for multi-strand twisted wires.

[0016] Figure 3 The utility model provides a schematic diagram of the partial structure of a low-temperature solderable polyurethane enameled round copper wire for multi-strand twisted wires.

[0017] In the accompanying drawings: 1. fixing sleeve; 2. wire body; 3. conductor; 5. first insulating layer; 6. elastic layer; 7. fiber body; 8. coating layer; 9. solder layer; 10. second insulating layer. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work fall within the scope of protection of the present application.

[0019] The utility model discloses a low-temperature solder-type polyurethane enameled copper round wire for multi-strand twisted wire, which is mainly used in scenarios where the wire is easily broken or damaged when stretched or twisted by external force, has poor tensile strength and durability, and has an unsatisfactory insulation effect. Current leaks to the external environment, which may lead to a decline in electrical performance and poor safety.

[0020] Reference Figure 1 and Figure 3 A low-temperature solderable polyurethane enameled copper round wire for a multi-strand stranded wire, comprising a wire body 2 and a fixing sleeve 1 sleeved on the outer wall of the wire body 2, and further comprising:

[0021] Tensile mechanism: The tensile mechanism is arranged inside the wire body 2, and a conductor 3 is arranged inside the wire body 2. The outer wall of the conductor 3 is connected to an elastic layer 6, and a plurality of equidistantly distributed fiber bodies 7 are embedded inside the elastic layer 6;

[0022] Insulation mechanism: The insulation mechanism is arranged on the outer wall of the elastic layer 6 .

[0023] During the specific implementation process, by connecting the elastic layer 6 to the outer wall of the conductor 3 and embedding the fiber bodies 7 distributed at equal distances inside the elastic layer 6, the stress can be dispersed more effectively, fracture can be prevented, and the tensile strength of the overall structure can be enhanced, thereby improving the service life and reliability of the cable. The presence of the elastic layer 6 allows the cable to maintain sufficient strength while also having a certain flexibility, which enables the cable to maintain stable performance in complex environments such as bending and twisting and is not easily damaged. The embedding of the fiber body 7 can further fix the shape of the conductor 3, preventing the conductor 3 from being deformed or shifted when subjected to external force, thereby ensuring the stability of the electrical performance of the cable.

[0024] Reference Figure 2In a preferred embodiment, the conductor 3 is made of electrolytic copper and the elastic layer 6 is made of silicone.

[0025] Electrolytic copper has extremely high conductivity, which can ensure efficient and stable transmission of current in the cable and reduce energy loss. In addition, electrolytic copper has good ductility and plasticity, making it suitable for the production of multi-strand twisted wires. Silicone has excellent elasticity and can resist extrusion and stretching of external forces to a certain extent, providing effective protection for conductor 3. At the same time, silicone can maintain stable performance at higher temperatures and is not easy to deform or melt, which enables the cable to work normally in high temperature environments.

[0026] Reference Figure 3 In a preferred embodiment, the fiber bodies 7 are all made of glass fibers. Adding the fiber bodies 7 made of glass fibers to the silicone can further enhance the wear resistance, tensile resistance, tear resistance, compression resistance and impact resistance of the silicone pad, thereby improving the mechanical strength and anti-aging performance of the silicone product.

[0027] Reference Figure 1 and Figure 3 In a preferred embodiment, the insulating structure includes a first insulating layer 5 , the outer wall of the first insulating layer 5 is wavy, and the inner wall of the first insulating layer 5 is connected to the second insulating layer 10 .

[0028] The design of two layers of insulation provides double electrical isolation for the cable, ensuring that the current flows inside the conductor 3 and does not leak into the external environment, thereby improving the electrical safety of the cable. The wavy design of the outer wall of the first insulation layer 5 improves the mechanical strength of the cable. When the cable is subjected to external force, it can better disperse stress and prevent the insulation layer from breaking or being damaged. At the same time, it increases the contact area between the wire bodies 2, making the wire bodies 2 more tightly twisted and the structure more stable.

[0029] Reference Figure 3 In a preferred embodiment, the first insulating layer 5 is made of polyurethane, and the second insulating layer 10 is made of polyester.

[0030] Polyurethane and polyester are both excellent insulating materials. Their high resistivity can ensure that the current flows inside the conductor 3, effectively preventing the current from leaking to the external environment, and ensuring the electrical safety of the cable. Moreover, polyurethane and polyester have certain complementarity in performance. Polyurethane has better wear resistance and tear resistance, while polyester has better chemical corrosion resistance and processing performance. Using these two materials for the first insulating layer 5 and the second insulating layer 10 respectively can give full play to their advantages and improve the overall performance of the cable.

[0031] Reference Figure 2 and Figure 3In a preferred embodiment, a coating layer 8 is connected to the outer wall of the elastic layer 6, and the coating layer 8 is made of polyimide material.

[0032] Polyimide material has good electrical insulation properties and can effectively isolate the conductor 3 from the external environment, preventing electrical faults such as current leakage and short circuit, thereby further enhancing the electrical safety of the cable.

[0033] Reference Figure 3 In a preferred embodiment, a solder layer 9 is provided between the elastic layer 6 and the second insulating layer 10 , and the solder layer 9 is made of tin-silver alloy.

[0034] Tin-silver alloy is a high-quality soldering material with a low melting point, which enables reliable soldering connections at lower temperatures. This feature allows for convenient and quick soldering of cables when soldering is required, improving work efficiency.

[0035] Working principle: When in use, multiple strands of wire 2 are twisted together. After twisting, a fixing sleeve 1 is installed on the outermost layer to further ensure the stability of the overall structure.

[0036] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacements described may be partial structures, devices, or method steps, or they may be complete technical solutions. Any equivalent replacements or modifications based on the technical solution and the concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A low-temperature solder-type polyurethane enameled copper round wire for multi-strand twisted wire, comprising a wire body (2) and a fixing sleeve (1) sleeved on the outer wall of the wire body (2), characterized in that: Also includes: Tensile resistance mechanism: the tensile resistance mechanism is arranged inside the wire body (2), a conductor (3) is arranged inside the wire body (2), an elastic layer (6) is connected to the outer wall of the conductor (3), and a plurality of equidistantly distributed fiber bodies (7) are embedded inside the elastic layer (6); Insulation mechanism: the insulation mechanism is arranged on the outer wall of the elastic layer (6).

2. The low-temperature solderable polyurethane enameled round copper wire for multi-stranded wire according to claim 1, characterized in that: The conductor (3) is made of electrolytic copper, and the elastic layer (6) is made of silicone.

3. The low-temperature solderable polyurethane enameled round copper wire for multi-stranded wire according to claim 2, characterized in that: The fiber bodies (7) are all made of glass fibers.

4. The low-temperature solderable polyurethane enameled round copper wire for multi-stranded wire according to claim 1, characterized in that: The insulating structure comprises a first insulating layer (5), the outer wall of the first insulating layer (5) is wavy, and the inner wall of the first insulating layer (5) is connected to a second insulating layer (10).

5. The low-temperature solderable polyurethane enameled round copper wire for multi-strand twisted wire according to claim 4, characterized in that: The first insulating layer (5) is made of polyurethane material, and the second insulating layer (10) is made of polyester material.

6. The low-temperature solderable polyurethane enameled round copper wire for multi-stranded wire according to claim 5, characterized in that: The outer wall of the elastic layer (6) is connected to a coating layer (8), and the coating layer (8) is made of a polyimide material.

7. The low-temperature solderable polyurethane enameled round copper wire for multi-strand twisted wire according to claim 6, characterized in that: A solder layer (9) is provided between the elastic layer (6) and the second insulating layer (10), and the solder layer (9) is made of a tin-silver alloy.

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