Bending-resistant double-layer insulation protection Christmas lamp string wire

Abstract

The utility model provides a bending-resistant double-layer insulation protection Christmas lamp string wire, which comprises a power supply lead, lamp beads, an inner insulation layer, an enhanced protection cable, a connection node and an outer insulation layer, and is characterized in that the lamp beads are welded on the power supply lead, the inner insulation layer wraps the outer side of the power supply lead, and the lamp beads are exposed; the enhanced protection cable is located on the outer side of the power supply wire, and the power supply wire and the enhanced protection cable are connected and fixed through a connection node. The power supply wires, the lamp beads, the inner insulation layer, the enhanced protection cable and the connection nodes are wrapped with the outer insulation layer. Due to the arrangement of the enhanced protection cable, the connection nodes and the outer insulating layer, the tensile strength is high, the cable cannot be damaged in a long-time bending state, and the cable can be used in a relatively severe environment.

Description

Technical Field

[0001] This utility model relates to the technical field of Christmas light string wires, and in particular to a double-insulated Christmas light string wire that is resistant to bending. Background Technology

[0002] In modern society, Christmas string lights, as a widely used holiday decoration, have become an important element in celebrating the festive atmosphere. With the development of technology and the increasing demands of consumers for safety, aesthetics, and durability, traditional string light products face many technical challenges. In order to improve the safety, lifespan, and user experience of the products, it is particularly important to develop more advanced string light wires.

[0003] Traditional Christmas light strings typically use a single layer of insulation material to wrap the power supply wires. While this provides some electrical insulation, its protective performance and tensile strength are often insufficient. In outdoor environments, the light strings are easily damaged by wind, rain, or human pulling, posing safety hazards such as short circuits and bulb extinguishing.

[0004] In addition, traditional string lights are prone to aging and breakage of wires when subjected to temperature changes or frequent bending, which greatly affects the product's lifespan.

[0005] Therefore, it is essential to invent a bend-resistant, double-insulated protective wire for Christmas light strings. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a double-insulated, bend-resistant Christmas light string wire, solving the issues that existing Christmas light string wires still suffer from poor tensile strength, are prone to damage under prolonged bending, and cannot be used in harsh environments. The bend-resistant, double-insulated Christmas light string wire includes a power supply conductor, LED beads, an inner insulation layer, a reinforcing cable, a connecting node, and an outer insulation layer. The LED beads are soldered onto the power supply conductor, and the inner insulation layer wraps around the outside of the power supply conductor, exposing the LED beads. The reinforcing cable is located outside the power supply conductor, and the power supply conductor and the reinforcing cable are connected and fixed via a connecting node. The outer insulation layer wraps around the power supply conductor, LED beads, inner insulation layer, reinforcing cable, and connecting node.

[0007] The connection node includes a connection body, an anti-slip outer pad, a cable connection port, and a wire connection port. The anti-slip outer pad is fixedly installed on the outside of the connection body. The cable connection port is located on one side of the connection body, and a reinforced protective cable is fixedly installed inside it. The wire connection port is located on the other side of the connection body, and a power supply wire and an inner insulation layer are fixedly installed inside it.

[0008] The reinforcing cable uses a single steel wire, and its overall length is less than that of the power supply conductor. When the reinforcing cable is taut, the power supply conductor is bent. The reinforcing cable is wrapped with a layer of varnish, which serves the following purposes: ① Increased tensile strength: The steel wire used in the reinforcing cable has extremely high tensile strength. Compared to traditional Christmas light strings that only use the power supply conductor as the main load-bearing structure, the reinforcing cable can bear the main tensile force when the wire is stretched, keeping the power supply conductor relaxed and preventing the internal metal core from directly bearing the tensile force, thus extending the wire's lifespan; ② Improved bending resistance: Due to the presence of the reinforcing cable, the entire wire can effectively distribute stress when bent or repeatedly bent, reducing losses in the power supply conductor at bends. This design... More durable than a single conductor structure, especially suitable for environments requiring frequent movement or bending, such as the installation and decoration of Christmas lights; ③ Effectively prevents tensile damage: In existing technologies, when the wire is stretched, the power supply conductor directly bears the tensile force, which can easily lead to conductor breakage. However, the reinforced protective cable is connected to the power supply conductor through a joint. During the stretching process, the reinforced protective cable straightens first and bears the tensile force, while the power supply conductor is not subjected to any tensile force as long as the reinforced protective cable remains unbroken. This effectively avoids the problem of conductor breakage due to stretching; ④ Prevents conductor damage due to bending: The reinforced protective cable has good structural strength and can support the overall structure of the wire when the light string is bent or compressed, reducing fatigue damage to the power supply conductor caused by repeated bending. Compared with traditional technology, this design significantly enhances the durability and stability of the wire.

[0009] Several sets of connection nodes are used to connect the reinforcing cable and the power supply conductor, forming several nodes on both. Within each connection node, a section of the reinforcing cable is of a different length than the power supply conductor, and the length of the reinforcing cable within the connection node is shorter than the length of the power supply conductor. When the reinforcing cable within the connection node is taut, the power supply conductor will not be stressed. This design serves the following purposes: ① Stress dispersion: The connection nodes connect the reinforcing cable and the power supply conductor, forming multiple nodes. This multi-node structure can disperse the stress on the power supply conductor and the reinforcing cable when the wire is bent or stretched. In existing technologies, a single conductor is prone to breakage at points of concentrated stress. However, through the design of multiple connection nodes, the overall mechanical performance of the wire is improved, reducing the risk of breakage. ② Anti-slip design: Through the anti-slip outer pad on the connection body, the connection node can effectively prevent slippage or loosening at the connection point. This is especially important in scenarios where the wire is moved or pulled repeatedly, ensuring that the reinforcing cable and the power supply conductor remain firmly connected during long-term use, avoiding functional failure caused by loose connections.

[0010] The outer insulation layer uses a hollow heat-shrinkable wrapping tape, which shrinks under heat until it completely and securely covers the power supply wires, LED beads, inner insulation layer, reinforcing cable, and connection nodes. This serves the following purposes: ① Resistance to mechanical damage: The outer insulation layer is made of robust materials, effectively resisting mechanical damage such as physical impacts, scratches, and abrasions. This design significantly improves the durability of the wire, reduces the risk of insulation damage caused by external forces, and protects the internal power supply wires and reinforcing cable; ② Prevention of light blockage: The outer insulation layer is made of transparent material, preventing light blockage and allowing light from the LED beads to fully diffuse outwards.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The reinforced protective cable of this utility model has the following functions: ① Increased tensile strength:

[0013] The reinforced protective cable uses steel wire, which has extremely high tensile strength. Compared to traditional Christmas light strings that only use the power supply conductor as the main load-bearing structure, the reinforced protective cable can bear the main tensile force when the wire is stretched, keeping the power supply conductor in a relaxed state and preventing the metal core inside the conductor from directly bearing the tensile force, thus extending the service life of the wire; ② Improved bending resistance: Due to the presence of the reinforced protective cable, the entire wire can effectively disperse stress when bent or repeatedly bent, reducing the loss of the power supply conductor at the bending point. This design is more durable than a single conductor structure and is particularly suitable for environments that require frequent movement or bending, such as the installation and decoration of Christmas light strings; ③ Effectively prevents tensile stress. ④ Prevents damage from stretching: In existing technologies, when the power supply conductor is stretched, it directly bears the tensile force, which can easily lead to conductor breakage. However, the reinforced protective cable is connected to the power supply conductor through a joint. During the stretching process, the reinforced protective cable first straightens and bears the tensile force, while the power supply conductor is not subjected to any tensile force as long as the reinforced protective cable remains unbroken. This effectively avoids the problem of conductor breakage due to stretching. ⑤ Prevents conductor damage due to bending: The reinforced protective cable has good structural strength. When the light string is bent or compressed, it can support the overall structure of the wire, reducing fatigue damage to the power supply conductor caused by repeated bending. Compared with traditional technology, this design significantly enhances the durability and stability of the wire.

[0014] 2. The connection node of this utility model has the following functions: ① Stress dispersion function: The connection node connects the reinforcing cable and the power supply conductor together to form multiple nodes. This multi-node structure can disperse the stress on the power supply conductor and the reinforcing cable when the wire is bent or stretched. In the prior art, a single conductor is prone to breakage at the stress concentration point. However, through the design of multiple connection nodes, the mechanical performance of the entire wire is improved, reducing the risk of breakage; ② Anti-slip design: Through the anti-slip outer pad on the connection body, the connection node can effectively prevent the connection from sliding or loosening. This is especially important in scenarios where the wire is moved or pulled repeatedly, ensuring that the reinforcing cable and the power supply conductor remain firmly connected during long-term use, avoiding functional failure caused by loose connection.

[0015] 3. The outer insulation layer of this utility model has the following functions: ① Resistance to mechanical damage: The outer insulation layer is made of a sturdy material, which can effectively resist mechanical damage such as physical impact, scratch and wear. This design significantly improves the durability of the wire, reduces the risk of insulation layer damage caused by external forces, and protects the internal power supply wires and reinforces the protective cable; ② Prevention of light blocking: The outer insulation layer is made of a transparent material, which can prevent light from being blocked, so that the light emitted by the lamp can be fully emitted outward. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a structural schematic diagram of the connecting node of this utility model.

[0018] Figure 3 This is an enlarged view of section A of this utility model.

[0019] In the picture:

[0020] 1. Power supply wire; 2. LED bead; 3. Inner insulation layer; 4. Reinforced protective cable; 5. Connecting node; 51. Connecting body; 52. Anti-slip outer pad; 53. Cable connection port; 54. Wire connection port; 6. Outer insulation layer. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. 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 should fall within the protection scope of the present invention.

[0022] As attached Figure 1 To be continued Figure 3As shown.

[0023] This utility model provides a double-insulated Christmas light string wire with bend resistance, comprising a power supply conductor 1, LED beads 2, an inner insulation layer 3, a reinforcing protective cable 4, a connecting node 5, and an outer insulation layer 6. The LED beads 2 are soldered onto the power supply conductor 1, and the inner insulation layer 3 wraps around the outside of the power supply conductor 1, exposing the LED beads 2. The reinforcing protective cable 4 is located outside the power supply conductor 1, and the power supply conductor 1 and the reinforcing protective cable 4 are connected and fixed through the connecting node 5. The outer insulation layer 6 wraps around the power supply conductor 1, LED beads 2, inner insulation layer 3, reinforcing protective cable 4, and connecting node 5.

[0024] The connecting node 5 includes a connecting body 51, an anti-slip outer pad 52, a cable connection port 53, and a wire connection port 54. The anti-slip outer pad 52 is fixedly installed on the outside of the connecting body 51. The cable connection port 53 is located on one side of the connecting body 51, and a reinforced protective cable 4 is fixedly installed inside it. The wire connection port 54 is located on the other side of the connecting body 51, and a power supply wire 1 and an inner insulation layer 3 are fixedly installed inside it.

[0025] The reinforcing protective cable 4 is made of a single steel wire, and the overall length of the reinforcing protective cable 4 is less than the length of the power supply conductor 1. When the reinforcing protective cable 4 is taut, the power supply conductor 1 is in a bent state. The reinforcing protective cable 4 is wrapped with a layer of varnish.

[0026] Several sets of connection nodes 5 are used to connect the reinforcing protective cable 4 and the power supply wire 1, forming several nodes on the reinforcing protective cable 4 and the power supply wire 1. The length of a section of the reinforcing protective cable 4 inside the connection node 5 is different from that of the power supply wire 1, and the length of the reinforcing protective cable 4 inside the connection node 5 is shorter than the length of the power supply wire 1. When the reinforcing protective cable 4 inside the connection node 5 is taut, the power supply wire 1 will not be under stress.

[0027] The outer insulation layer 6 is made of a hollow heat-shrinkable wrapping tape, and the outer insulation layer 6 will shrink under the participation of heat until it completely and firmly wraps the outside of the power supply wire 1, the lamp bead 2, the inner insulation layer 3, the reinforced protective cable 4 and the connecting node 5.

[0028] The following is a detailed description of the working principle of a double-insulated Christmas light string wire that is resistant to bending:

[0029] Working principle

[0030] The working principle of this type of double-insulated, bend-resistant Christmas light string wire involves its structural design, material properties, and electrical safety assurance. It can be mainly divided into the following aspects:

[0031] Power transmission:

[0032] The power supply wire 1 serves as the main current transmission channel, connecting the power supply and the LED bead 2. When the power supply is turned on, the current flows through the power supply wire 1 to the LED bead 2, causing it to emit light.

[0033] The inner insulation layer 3 is wrapped around the outside of the power supply wire 1 to prevent current leakage and ensure electrical safety. The use of the inner insulation layer 3 ensures that the power supply wire 1 is insulated from the surrounding environment under normal working conditions, thus avoiding the risk of electric shock.

[0034] 2. LED beads emit light:

[0035] The LED bead 2 is soldered onto the power supply wire 1 and exposed outside the inner insulation layer 3. When current reaches the LED bead 2 through the power supply wire 1, the LED bead 2 starts to emit light. This design allows the LED bead 2 to effectively contact the outside light and achieve a good lighting effect.

[0036] 3. Enhance protection:

[0037] The reinforced protective cable 4 is located outside the power supply conductor 1 and provides physical protection. This steel wire enhances the cable's tensile and bending resistance, preventing damage caused by external forces during use.

[0038] Since the overall length of the reinforcing cable 4 is less than that of the power supply conductor 1, the reinforcing cable 4 remains taut during use, while the power supply conductor 1 is bent, thereby effectively reducing the tension and bending stress on the power supply conductor and extending its service life.

[0039] 4. Connection and fixation:

[0040] Connection node 5 securely connects the power supply wire 1 to the reinforced protective cable 4, ensuring their stability and safety during operation. The connection node is designed with multiple connections, further enhancing the overall connection strength and reducing the risk of loosening due to vibration or pulling.

[0041] The anti-slip outer pad 52 increases the friction at the joint, ensuring a secure connection and helping to prevent the joint from loosening due to friction.

[0042] 5. Outer insulation protection:

[0043] The outer insulation layer 6 uses hollow heat-shrinkable tape, which shrinks when heated and tightly wraps around the power supply wire 1, LED bead 2, inner insulation layer 3, reinforced protective cable 4, and connection node 5. This design not only provides additional insulation protection but also ensures a tight fit of all components, preventing moisture and external contaminants from affecting the wires.

[0044] Application scenarios

[0045] This type of double-insulated, bend-resistant Christmas light string wire is widely used in indoor and outdoor holiday decorations. Its design allows the strings to operate safely in various climatic conditions, and its tensile and bending resistance ensures long-term use without easy damage, meeting the high safety and durability requirements of modern home and commercial environments.

[0046] in conclusion

[0047] Through reasonable structural design and material selection, this double-insulated Christmas light string wire, which is resistant to bending, provides strong physical protection and reliable luminous effect while ensuring electrical safety, making it an ideal solution for modern holiday lighting.

[0048] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A double-insulated, bend-resistant Christmas light string wire, characterized in that: The device includes a power supply wire (1), an LED bead (2), an inner insulation layer (3), a reinforced protective cable (4), a connecting node (5), and an outer insulation layer (6). The LED bead (2) is soldered onto the power supply wire (1), and the inner insulation layer (3) wraps around the outside of the power supply wire (1), exposing the LED bead (2). The reinforced protective cable (4) is located outside the power supply wire (1), and the power supply wire (1) and the reinforced protective cable (4) are connected and fixed through the connecting node (5). The outer insulation layer (6) wraps around the outside of the power supply wire (1), the LED bead (2), the inner insulation layer (3), the reinforced protective cable (4), and the connecting node (5).

2. The double-insulated Christmas light string wire with bending resistance as described in claim 1, characterized in that: The connecting node (5) includes a connecting body (51), an anti-slip outer pad (52), a cable connection port (53), and a wire connection port (54). The anti-slip outer pad (52) is fixedly installed on the outside of the connecting body (51). The cable connection port (53) is opened on one side of the connecting body (51), and an enhanced protective cable (4) is fixedly installed inside it. The wire connection port (54) is opened on the other side of the connecting body (51), and a power supply wire (1) and an inner insulation layer (3) are fixedly installed inside it.

3. The double-insulated Christmas light string wire with bending resistance as described in claim 1, characterized in that: The reinforced protective cable (4) is made of a single steel wire, and the overall length of the reinforced protective cable (4) is less than the length of the power supply conductor (1). When the reinforced protective cable (4) is taut, the power supply conductor (1) is bent. The reinforced protective cable (4) is wrapped with a layer of varnish.

4. The double-insulated Christmas light string wire with bending resistance as described in claim 3, characterized in that: The connecting nodes (5) are in several groups. While connecting the reinforcing cable (4) and the power supply wire (1) together, several nodes are formed on the reinforcing cable (4) and the power supply wire (1). The length of a section of the reinforcing cable (4) inside the connecting node (5) is different from that of the power supply wire (1), and the length of the reinforcing cable (4) inside the connecting node (5) is shorter than the length of the power supply wire (1). When the reinforcing cable (4) inside the connecting node (5) is taut, the power supply wire (1) will not be under stress.

5. The double-insulated Christmas light string wire with bending resistance as described in claim 1, characterized in that: The outer insulation layer (6) is made of a hollow heat-shrinkable wrapping tape, and the outer insulation layer (6) will shrink under the participation of heat until it completely and firmly wraps the outside of the power supply wire (1), the lamp bead (2), the inner insulation layer (3), the reinforced protective cable (4) and the connecting node (5).

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