A combined LED string light
Patent Information
- Application Number
- CN202522498988.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-25
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-11-25
AI Technical Summary
[0004]然而,现有串接式LED串灯仍存在显著技术缺陷
[0022]两个第一密封凸块、第二密封凸块与线槽的配对,形成密封屏障,进一步减少异物穿过线槽侵入发光灯体内部的风险,配合端盖遮挡部和垫圈结构,显著提升了组合式LED串灯在绝缘防护、隔档等环境中的使用安全性和防护可靠性。
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Figure CN224787014U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED lights, specifically to a combined LED string light. Background Technology
[0002] Modular LED string lights belong to the technical field of LED lighting devices, particularly decorative lighting equipment that can be modularly combined and arranged in series. These lights are widely used in landscape design, outdoor decoration, billboard lighting, and architectural outlining due to their high efficiency, energy saving, long lifespan, and environmental friendliness. For example, in commercial districts, garden landscapes, and festival celebrations, LED string lights, through flexible series connections, form continuous luminous lines or patterns, becoming an important medium for decorative lighting.
[0003] Existing modular LED string lights typically employ a modular design, using individual light source modules as a base for series connection and expansion. Taking a typical structure as an example, it consists of a light-transmitting cover, an insulating mounting frame, and built-in LED light-emitting units: the two ends of the light-transmitting cover are fixedly connected to the two ends of the insulating mounting frame, forming a closed cavity to protect the light-emitting units; the insulating mounting frame has two parallel, spaced-apart first wiring channels along its length, with axially open conductors formed by metal springs within these channels. The two conductors are electrically connected to the positive and negative terminals of the LED light-emitting units, respectively. Through the series connection structure of the conductors, multiple modules can be slidably connected and spliced together to form a continuous light-emitting body, supporting combinations of arbitrary lengths and shapes.
[0004] However, existing string LED lights still have significant technical defects. Because the conductor contacts the light-emitting element via a spring, the opening in the wire exposes the conductor directly to the external environment. This allows foreign objects (such as dust, water droplets, and debris) to easily contact the conductor surface through the wire opening, leading to short circuits, leakage, or signal interference. This severely reduces the protective effect of the lights. Furthermore, the wire opening structure affects the safety, reliability, and long-term stability of the connection between the conductor and the light-emitting element, limiting the application of combined LED string lights in complex environments. Therefore, a combined LED string light structure with high protection and safety is urgently needed. Utility Model Content
[0005] The purpose of this invention is to address the above-mentioned deficiencies by providing a modular LED string light, thereby solving the technical problems in the background art regarding how to improve the protective effect, long-term stability, and safety of modular LED string lights.
[0006] The objective of this utility model is achieved through the following means:
[0007] A combined LED string light includes a light-emitting body and a power cord for supplying power to the light-emitting body. The light-emitting body is connected in series on the power cord and can be slidably adjusted along the length of the power cord. The power cord includes two conductors and a wire body. The wire body has two grooves along its length for mounting the conductors. The light-emitting body is electrically connected to the two conductors through a conductive structure. The light-emitting body has a sleeve inside, which is a hollow tube. The two ends of the sleeve have a first threaded portion and a second threaded portion, respectively. A first end cap and a second end cap are respectively connected to the first threaded portion and the second threaded portion by threads. The first end cap and the second end cap have a first connecting hole and a second connecting hole for mating the first threaded portion and the second threaded portion, respectively. Two connecting holes are provided, and the first end cap and the second end cap are respectively provided with a first through hole and a second through hole for pairing and passing through the power cord. The ends of the first end cap and the second end cap away from the sleeve are respectively provided with a first shielding part and a second shielding part. The first through hole and the second through hole are respectively provided with a first washer and a second washer. The first washer and the second washer are respectively provided with a first wire hole and a second wire hole for passing through the wire body. The inner walls of the first wire hole and the second wire hole are respectively formed with a first sealing protrusion and a second sealing protrusion that are matched with the wire groove. The first sealing protrusion and the second sealing protrusion both extend into the interior of the wire groove. Two adjacent light lamp bodies are fitted with a retractable corrugated telescopic tube, so that the corrugated telescopic tube can be fitted to protect the power cord.
[0008] The first and second shielding parts form a physical barrier, which, together with the first and second sealing protrusions on the first and second washers, and the locking and matching with the wire groove, effectively reduces the intrusion of dust and foreign objects into the lamp body through the wire groove opening, significantly improving the protective effect and long-term stability of the lamp in complex environments.
[0009] Furthermore, as described above, a first gasket is provided between the first end cap and the light-emitting lamp body, and a second gasket is provided between the second end cap and the light-emitting lamp body.
[0010] The first and second gaskets enhance the sealing at the connection between the end cap and the lamp body, further blocking the path of foreign objects entering from the joint between the end cap and the lamp body. Together with the sealing protrusions on the first and second gaskets, they form a double protection, strengthening the safety and reliability of the connection between the conductor and the lamp body.
[0011] Further as described above, the light-emitting lamp body includes a lampshade, an LED light source assembly for emitting light, and a connecting bracket. The lampshade is sleeved on the outside of the connecting bracket, and a sleeve is fitted onto the connecting bracket. The LED light source assembly is fitted onto the outside of the sleeve and positioned between the lampshade and the sleeve. The connecting bracket has axially formed serial holes for mating and passing through wires inside.
[0012] The layered structure of the lampshade, LED light source components, connecting brackets, and sleeves allows the power cord to be threaded through serial holes. The serial holes enable the lamp body to slide and adjust along the power cord. At the same time, the lampshade ensures the protection of the internal LED light source components and conductors, preventing external mechanical stress from acting directly on the LED light source components, thus improving the assembly flexibility and structural durability of the lamp.
[0013] Furthermore, as described above, the conductive structure includes two conductive springs, the connecting bracket is composed of two opposing mounting frames, the two mounting frames are joined together to form a cylinder, a serial connection hole is provided between the two mounting frames, and the inner sides of the two mounting frames are provided with mounting grooves for mating and mounting the conductive springs. The two conductive springs are bent to form a retaining contact end that extends toward the axis of the serial connection hole, and the other end of the conductive spring passes through the bracket through the connecting end to be electrically connected to the LED light source assembly.
[0014] The conductive spring is fixed by mounting groove, and the retaining contact end formed by its bending extends towards the axis of the serial hole, ensuring a stable and elastic wedge-tight contact with the conductor. This solves the problem that traditional spring contacts are easily interfered with by foreign objects, and improves the long-term stability and safety of electrical connection.
[0015] Furthermore, as described above, the LED light source assembly consists of a flexible circuit board and a plurality of LED light sources uniformly distributed on the flexible circuit board. The flexible circuit board is arranged around the outer surface of the sleeve and is electrically connected to the connection end.
[0016] The LED light source assembly uses a flexible circuit board surrounding the sleeve, which ensures that the LED light source is evenly distributed and tightly fitted to the sleeve. This not only guarantees the uniformity of light emission, but also allows the flexible material to adapt to the shape of the sleeve, so that the light emission forms a circular cylindrical shape, improving the performance.
[0017] Furthermore, the corrugated telescopic tube has a first sleeve hole and a second sleeve hole at both ends for mating and sleeved connection of the first end cap and the second end cap, respectively. The inner walls of the first sleeve hole and the second sleeve hole are respectively provided with a first retaining part and a second retaining part. The outer sides of the first end cap and the second end cap are respectively provided with a first slot and a second slot for mating the first retaining part and the second retaining part.
[0018] The corrugated telescopic tube is connected to two adjacent light-emitting lamps through the first and second sets of holes respectively. At the same time, the first and second clamping parts are paired and sleeved with the first and second slots of the end cover, so that the corrugated telescopic tube forms a telescopic protection, effectively wrapping the power cord and preventing external mechanical damage. It also maintains the flexibility of adjusting the spacing between the light-emitting lamps, enhancing the protection effect of the power cord and the overall stability of the circuit.
[0019] Furthermore, as described above, the light-emitting lamps can be connected in series on the power line in any number and at any spacing.
[0020] The light-emitting lamps can be connected in series with the power cord in any number and at any spacing to meet the decoration or lighting needs of different scenarios. The standardized end cap and telescopic tube connection structure ensures the structural consistency and protection performance when multiple lamps are connected in series.
[0021] Furthermore, as described above, there are two of each of the first and second sealing protrusions, and both the first and second sealing protrusions are paired with the wire groove to reduce the intrusion of foreign objects into the lamp body.
[0022] The pairing of the two first sealing protrusions and the second sealing protrusion with the wire groove forms a sealing barrier, further reducing the risk of foreign objects penetrating the wire groove and intruding into the interior of the light-emitting lamp body. Combined with the end cover shielding part and the gasket structure, it significantly improves the safety and reliability of the combined LED string lights in environments such as insulation protection and partitioning.
[0023] The beneficial effects of this utility model are as follows: Two wire grooves are respectively installed in the power cord body to install conductors. These, along with the first and second washers inside the first and second end caps, and the first and second sealing protrusions paired with the wire grooves, effectively reduce the entry of external foreign objects such as dust and debris into the lamp body from the wire grooves. This reduces the risk of short circuits, leakage, and signal interference, and improves the protective effect of the lamp in complex environments. The two ends of the sleeve are respectively connected to the first and second end caps via the first and second threaded portions, forming a reliable physical protective barrier, improving the safety and long-term stability of the connection. The retractable corrugated telescopic tubes that fit between adjacent lamp bodies allow the lamp bodies to slide and adjust along the length of the power cord while providing protection for the power cord through the corrugated telescopic tube structure. This meets the requirements for the sliding adjustment distance of the lamp bodies, prevents damage to the power cord from external mechanical impacts or pulling, and ensures the safety and reliability of the power cord. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this embodiment;
[0025] Figure 2 This is a cross-sectional view of the connection used in this embodiment;
[0026] Figure 3 This is a schematic diagram of the internal structure of this embodiment;
[0027] Figure 4 This is a structural breakdown diagram of this embodiment;
[0028] The reference numerals in the figure are as follows:
[0029] 100-Light-emitting lamp body, 101-Sleeve, 1011-First threaded part, 1012-Second threaded part, 102-Lamp cover, 103-LED light source assembly, 104-Connecting bracket, 105-Serial hole, 106-First gasket, 107-Second gasket;
[0030] 200-Power cord, 201-Conductor, 202-Wire body, 203-Wire trough;
[0031] 300 - First end cap, 301 - First connecting hole, 302 - First slot, 303 - First through hole;
[0032] 400 - Second end cap, 401 - Second connecting hole, 402 - Second slot, 403 - Second through hole;
[0033] 500 - First washer, 501 - First wire hole, 502 - First sealing protrusion;
[0034] 600 - Second washer, 601 - Second wire hole, 602 - Second sealing protrusion;
[0035] 700-Corrugated telescopic tube, 701-First sleeve hole, 702-Second sleeve hole, 703-First retaining part, 704-Second retaining part; 800-Conductive spring. Detailed Implementation
[0036] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0037] To make the technical problem to be solved, the technical solution and the beneficial effects of this utility model clearer, the following describes the solution in further detail with reference to the accompanying drawings and embodiments.
[0038] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0039] In this embodiment, refer to Figures 1-4The present invention relates to a combined LED string light, comprising a light-emitting body 100 and a power cord 200 for supplying power to the light-emitting body 100. The light-emitting body 100 is connected in series on the power cord 200 and can be slidably adjusted along the length of the power cord 200. The power cord 200 includes two conductors 201 and a wire body 202. The wire body 202 has two grooves 203 along its length for mounting the conductors 201. The light-emitting body 100 is connected to the two conductors 201 through a conductive structure. Electrical connection: The lamp body 100 has a sleeve 101 inside, which is a hollow tube. A first threaded portion 1011 and a second threaded portion 1012 are formed at both ends of the sleeve 101. A first end cap 300 and a second end cap 400 are respectively threaded onto the first threaded portion 1011 and the second threaded portion 1012. The first end cap 300 and the second end cap 400 have first connecting holes inside for mating the first threaded portion 1011 and the second threaded portion 1012. The first end cap 300 and the second end cap 401 are respectively provided with a first through hole 303 and a second through hole 403 for mating and passing through the power cord 200. The ends of the first end cap 300 and the second end cap 400 away from the sleeve 101 are respectively provided with a first blocking part and a second blocking part. The first through hole 303 and the second through hole 403 are respectively provided with a first washer 500 and a second washer 600. The first washer 500 and the second washer 600 are respectively provided with a through hole for passing through. The first wire hole 501 and the second wire hole 601 of the wire body 202 are respectively formed with a first sealing protrusion 502 and a second sealing protrusion 602 that are engaged and matched with the wire groove 203. The first sealing protrusion 502 and the second sealing protrusion 602 extend into the interior of the wire groove 203. Two adjacent light lamp bodies 100 are fitted with a retractable corrugated telescopic tube 700 so that the corrugated telescopic tube 700 can be fitted to protect the power cord 200.
[0040] The first and second shielding parts form a physical barrier, which, together with the first sealing protrusion 502 and the second sealing protrusion 602 on the first gasket 500 and the second gasket 600, and the wire groove 203, effectively reduces the intrusion of dust, foreign objects, etc. into the interior of the light-emitting lamp body 100 through the opening of the wire groove 203, and significantly improves the protective effect and long-term stability of the lamp in complex environments.
[0041] A first gasket 106 is provided between the first end cap 300 and the light-emitting lamp body 100, and a second gasket 107 is provided between the second end cap 400 and the light-emitting lamp body 100.
[0042] The first gasket 106 and the second gasket 107 enhance the sealing at the connection between the end cap and the light-emitting lamp body 100, further blocking the path of foreign objects entering from the joint between the end cap and the lamp body. Together with the sealing protrusions on the first gasket 500 and the second gasket 600, they form a double protection, strengthening the safety and reliability of the connection between the conductor 201 and the light-emitting lamp body 100.
[0043] The light-emitting lamp body 100 includes a lampshade 102, an LED light source assembly 103 for emitting light, and a connecting bracket 104. The lampshade 102 is sleeved on the outside of the connecting bracket 104, and a sleeve 101 is sleeved on the connecting bracket 104. The LED light source assembly 103 is fitted to the outside of the sleeve 101 and is located between the lampshade 102 and the sleeve 101. The connecting bracket 104 has a serial hole 105 axially provided inside for pairing and passing through the wire body 202.
[0044] The layered structure of the lampshade 102, LED light source assembly 103, connecting bracket 104 and sleeve 101 allows the power line 200 to pass through the serial connection hole 105. The serial connection hole 105 allows the light-emitting body 100 to slide and adjust along the power line 200. At the same time, the lampshade 102 ensures the protection of the internal LED light source assembly 103 and conductor 201, avoiding external mechanical stress from acting directly on the LED light source assembly 103, thus improving the assembly flexibility and structural durability of the lamp.
[0045] The conductive structure includes two conductive springs 800. The connecting bracket 104 is composed of two opposing mounting frames. The two mounting frames are joined together to form a cylinder. A serial hole 105 is provided between the two mounting frames. The inner sides of the two mounting frames are provided with mounting grooves for mating and mounting the conductive springs 800. The two conductive springs 800 are bent to form a retaining contact end that extends toward the axis of the serial hole 105. The other end of the conductive spring 800 passes through the bracket through the connecting end and is electrically connected to the LED light source assembly 103.
[0046] The conductive spring 800 is fixed by the mounting groove. The retaining contact end formed by its bending extends towards the axis of the serial hole 105, ensuring a stable and elastic wedge-tight contact with the conductor 201. This solves the problem that traditional spring contacts are easily interfered with by foreign objects, and improves the long-term stability and safety of the electrical connection.
[0047] The LED light source assembly 103 consists of a flexible circuit board and a plurality of LED light sources uniformly distributed on the flexible circuit board. The flexible circuit board is arranged around the outer surface of the sleeve 101 and is electrically connected to the connection end.
[0048] The LED light source assembly 103 uses a flexible circuit board surrounding the sleeve 101, which makes the LED light source evenly distributed and tightly attached to the sleeve 101. This ensures the uniformity of light emission and, through the flexible material, adapts to the shape of the sleeve 101, so that the light emission forms a circular cylindrical shape, thus improving the performance.
[0049] The corrugated telescopic tube 700 has a first sleeve hole 701 and a second sleeve hole 702 at both ends for mating and sleeved connection of the first end cap 300 and the second end cap 400. The inner walls of the first sleeve hole 701 and the second sleeve hole 702 are respectively provided with a first retaining part 703 and a second retaining part 704. The outer sides of the first end cap 300 and the second end cap 400 are respectively provided with a first slot 302 and a second slot 402 for mating of the first retaining part 703 and the second retaining part 704.
[0050] The corrugated telescopic tube 700 is connected to two adjacent light-emitting lamp bodies 100 through the first set of holes 701 and the second set of holes 702 respectively. At the same time, the first retaining part 703 and the second retaining part 704 are paired and sleeved with the first retaining groove 302 and the second retaining groove 402 of the end cover, so that the corrugated telescopic tube 700 forms a telescopic protection, effectively wrapping the power cord 200 and preventing external mechanical damage, while maintaining the flexibility of adjusting the spacing of the light-emitting lamp bodies 100, enhancing the protection effect of the power cord 200 and the overall stability of the circuit.
[0051] The light-emitting lamps 100 can be connected in series on the power line 200 in any number and at any spacing. The light-emitting lamps 100 can be connected in series on the power line 200 in any number and at any spacing to adapt to the decoration or lighting needs of different scenarios. The standardized end cap and telescopic tube connection structure ensures the structural consistency and protection performance when multiple lamps are connected in series.
[0052] Two of each of the first sealing protrusion 502 and the second sealing protrusion 602 are provided, and both the first sealing protrusion 502 and the second sealing protrusion 602 are paired with the wire groove 203 to reduce the intrusion of foreign objects into the light-emitting lamp body 100. The pairing of the two first sealing protrusions 502 and the second sealing protrusion 602 with the wire groove 203 forms a sealing barrier, further reducing the risk of foreign objects passing through the wire groove 203 and intruding into the light-emitting lamp body 100. Combined with the end cover shielding part and the gasket structure, the safety and reliability of the combined LED string lights in environments with insulation protection and partitioning are significantly improved.
[0053] The specific operating principle in this embodiment is as follows:
[0054] The conductive spring 800, mounting bracket, sleeve 101, LED light source assembly 103, lampshade 102, first gasket 106, and second gasket 107 are combined to form a light-emitting body 100. The light-emitting body 100 is threaded onto the wire body 202 through the serial hole 105 and can be adjusted along the length of the wire body 202. Two wire grooves 203 are opened in the wire body 202, each with a conductor 201 installed. The conductive spring 800 is inserted into the wire groove 203 through the locking contact part to make wedge contact with the conductor 201, so as to ensure the stability and reliability of the power supply of the LED light source assembly 103 and the connection of the light-emitting body 100 to the power line 200, and to prevent the light-emitting body 100 from slipping off and falling. The first end cap 300 and the second end cap 400 are respectively connected to the first threaded part 1011 and the second threaded part 1012 of the sleeve 101. The first washer 500 and the second washer 600 are provided in the first connection hole 301 and the second connection hole 401. The first sealing protrusion 502 and the second sealing protrusion 602 are paired with the wire groove 203 to effectively reduce the entry of external foreign objects such as dust and debris into the light-emitting lamp body 100 through the inside of the wire groove 203, thereby reducing the risk of short circuit, leakage and signal interference, and improving the protective effect of the lamp in complex environments. The two ends of the sleeve 101 are connected to the first end cap 300 and the second end cap 400 respectively through the first threaded part 1011 and the second threaded part 1012, forming a reliable physical protective barrier, improving the safety and long-term stability of the connection. Adjacent light-emitting lamp bodies 100 are fitted with retractable corrugated telescopic tubes 700. While allowing the light-emitting lamp body 100 to slide and adjust along the length of the power cord 200, the corrugated telescopic tube 700 structure realizes the sleeve protection of the power cord 200 and meets the sliding adjustment distance requirements of the light-emitting lamp body 100, preventing external mechanical impact or pulling from damaging the power cord 200 and ensuring the safety and reliability of the power cord 200.
[0055] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.
Claims
1. A combined LED string light, comprising a light-emitting body and a power line for supplying power to the light-emitting body, the light-emitting body being connected in series on the power line and adjustable by sliding along the length of the power line, the power line comprising two conductors and a wire body, the wire body having two grooves along its length for mounting the conductors, the light-emitting body being electrically connected to the two conductors through a conductive structure, characterized in that: The lamp body has an internal sleeve, which is a hollow tube. The two ends of the sleeve are connected to a first end cap and a second end cap by threads. The first end cap and the second end cap have a first connecting hole and a second connecting hole respectively. The first end cap and the second end cap also have a first through hole and a second through hole for mating and threading power cords. The ends of the first end cap and the second end cap away from the sleeve have a first shielding part and a second shielding part respectively. The first through hole and the second through hole have a first washer and a second washer respectively. The first washer and the second washer have a first threading hole and a second threading hole for threading wires respectively. The inner walls of the first threading hole and the second threading hole are formed with a first sealing protrusion and a second sealing protrusion that are mated and engaged with the wire groove. The first sealing protrusion and the second sealing protrusion both extend into the wire groove. Two adjacent lamp bodies are fitted with retractable corrugated telescopic tubes, which can be used to protect the power cords.
2. The combined LED string light according to claim 1, characterized in that: A first gasket is provided between the first end cap and the light-emitting lamp body, and a second gasket is provided between the second end cap and the light-emitting lamp body.
3. The combined LED string light according to claim 1, characterized in that: The light-emitting lamp body includes a lampshade, an LED light source assembly for emitting light, and a connecting bracket. The lampshade is sleeved on the outside of the connecting bracket, and a sleeve is fitted onto the connecting bracket. The LED light source assembly is fitted onto the outside of the sleeve and positioned between the lampshade and the sleeve. The connecting bracket has axially formed serial holes for mating and passing through wires inside.
4. The combined LED string light according to claim 3, characterized in that: The conductive structure includes two conductive springs. The connecting bracket is composed of two opposing mounting frames. The two mounting frames are joined together to form a cylinder. A serial connection hole is provided between the two mounting frames. The inner side of each mounting frame is provided with a mounting groove for mating and mounting the conductive springs. The two conductive springs are bent to form a retaining contact end that extends toward the axis of the serial connection hole. The other end of the conductive spring passes through the bracket through the connecting end and is electrically connected to the LED light source assembly.
5. A combined LED string light according to claim 3, characterized in that: The LED light source assembly consists of a flexible circuit board and several LED light sources evenly distributed on the flexible circuit board. The flexible circuit board is arranged around the outer surface of the sleeve and is electrically connected to the connection end.
6. A combined LED string light according to any one of claims 1-5, characterized in that: The corrugated telescopic tube has a first sleeve hole and a second sleeve hole at both ends for mating and fitting the first end cap and the second end cap. The inner walls of the first sleeve hole and the second sleeve hole are respectively provided with a first retaining part and a second retaining part. The outer sides of the first end cap and the second end cap are respectively provided with a first slot and a second slot for mating the first retaining part and the second retaining part.
7. A combined LED string light according to any one of claims 1-5, characterized in that: The light-emitting lamps can be connected in series on the power line in any number and at any spacing.
8. A combined LED string light according to any one of claims 1-5, characterized in that: Two of each of the first and second sealing protrusions are provided, and both the first and second sealing protrusions are paired with the wire groove to reduce the intrusion of foreign objects into the lamp body.