High voltage linear lighting LED soft strip

Abstract

This utility model discloses a high-voltage linear lighting LED flexible light strip, comprising several LED lighting units, a diffuser silicone shell layer, a light-shielding silicone shell layer, a transparent silicone layer, a PC cover layer, and a tensile strength layer. The light-shielding silicone shell layer has grooves for fixing the LED lighting units. The tensile strength layer is located on the back of the LED lighting units, the PC cover layer is located on top of the LED lighting units, and the transparent silicone layer covers the LED lighting units and the PC cover layer. The diffuser silicone shell layer, the light-shielding silicone shell layer, and the transparent silicone layer are co-extruded together. The LED lighting units are powered by a linear constant current parallel power supply, which achieves a small difference in brightness between the first and second ends of the light strip. The damage of one LED bead or unit does not affect the normal operation of other units, and it can be cut or spliced ​​according to the minimum unit length for use.

Description

Technical Field

[0001] This utility model relates to the field of LED light strip lighting technology, and in particular to a high-voltage linear lighting LED flexible light strip. Background Technology

[0002] Currently, most conventional LED light strips are constant voltage LED light strips, which suffer from a large voltage difference between the beginning and end, resulting in significantly higher brightness and temperature at the beginning compared to the end, affecting product consistency and lifespan. Due to the significant voltage drop, the cascade length is limited (5-10 meters), and the fully series-connected design of the LED chips in the light strip poses a risk of single-point failure and cannot be cut. Furthermore, high-voltage light strips, being directly connected to the mains power without protection devices, are susceptible to surge impacts (>1000V) and short-circuit safety hazards. The lack of a thermistor in the light strip makes it prone to overheating and damage. Ordinary high-pressure extruded light strips on the market are generally made of PVC or ordinary silicone, with poor heat dissipation, weak UV resistance, prone to yellowing, and generally poor sealing. Ordinary flexible LED light strips on the market are generally extruded directly after surface mounting, with no protection for the LED chips, resulting in poor resistance to torsion and bending. Since ordinary extruded light strips on the market are either directly extruded or have a PET film added to the back, the tensile strength of extruded products is limited, relying solely on the reinforcement of the PET film on the back. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model provides a high-voltage linear lighting LED flexible light strip, which achieves small brightness differences between the first and second ends of the light strip, and ensures that the damage of one LED bead or unit does not affect the normal operation of other units. Furthermore, it can be cut or spliced ​​according to the minimum unit length for use.

[0004] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0005] A high-voltage linear LED flexible light strip includes several LED lighting units, a diffuser silicone shell layer, a light-shielding silicone shell layer, a transparent silicone layer, a PC cover layer, and a tensile strength layer. The light-shielding silicone shell layer has grooves for fixing the LED lighting units. The tensile strength layer is located on the back of the LED lighting units. The PC cover layer is located on top of the LED lighting units. The transparent silicone layer covers the LED lighting units and the PC cover layer. The diffuser silicone shell layer, the light-shielding silicone shell layer, and the transparent silicone layer are co-extruded together. The LED lighting units are powered by a linear constant current parallel power supply, achieving a small difference in brightness between the first and second ends of the light strip.

[0006] Optionally, the materials used to make the diffusion silicone shell layer, the light-shielding silicone shell layer, and the transparent silicone layer include weather-safe silicone.

[0007] Optionally, a PC cover is provided at the LED beads in the LED lighting unit to protect the LED beads.

[0008] Optionally, a lens layer for focusing or diffusing light is provided between the PC cover and the LED beads in the LED lighting unit.

[0009] Optionally, the tensile layer is composed of a PEF sheet with copper foil.

[0010] Furthermore, the LED lighting unit includes a capacitor C1, a resistor R1, an LED series circuit, a rectifier bridge circuit, and a linear IC circuit. The positive AC input terminal of the rectifier bridge circuit is connected to the L terminal of the AC power supply, the negative AC input terminal of the rectifier bridge circuit is connected to the N terminal of the AC power supply, the positive DC output terminal of the rectifier bridge circuit is connected to the positive terminal of the LED series circuit, the negative DC output terminal of the rectifier bridge circuit is connected to one end of the capacitor C1, one end of the resistor R1, and the GND pin of the chip U1B in the linear IC circuit, respectively. The REXT pin of the chip U1B in the linear IC circuit is connected to the other end of the resistor R1, and the OUT pin of the chip U1B in the linear IC circuit is connected to the other end of the capacitor C1 and the negative terminal of the LED series circuit, respectively.

[0011] Furthermore, the LED lighting unit also includes a protection circuit, which includes a fuse F1 and a varistor RV1. One end of the fuse F1 is connected to the L terminal of the AC power supply, and the other end of the fuse F1 is connected to the positive AC input terminal of the rectifier bridge circuit and one end of the varistor RV1. One end of the varistor RV1 is connected to the negative AC input terminal of the rectifier bridge circuit and the N terminal of the AC power supply. The interaction between the fuse F1 and the varistor RV1 helps to solve the problems of surge impact and short circuit of the lamp strip.

[0012] Furthermore, the protection circuit also includes a thermistor RT1, which is connected in series between the LED beads in the LED series circuit. When the circuit temperature rises, the thermistor RT1 senses the temperature and increases its resistance, thereby reducing the current and lowering the temperature, thus achieving the purpose of protecting the circuit.

[0013] Furthermore, a high-voltage linear lighting LED flexible light strip also includes an auxiliary fixing component and a long rope component. The auxiliary fixing component has a ring for the long rope component to pass through. The auxiliary fixing component is fixed to the outer shell of the flexible light strip. The long rope component is connected to the ring of the auxiliary fixing component. By combining the auxiliary fixing component and the long rope component, the flexible light strip can be suspended and applied in various scenarios, avoiding problems such as breakage and damage to the internal circuit of the flexible light strip due to its own weight.

[0014] Furthermore, a high-voltage linear lighting LED flexible light strip also includes a protective cover component. The protective cover component has a groove that matches the end of the flexible light strip. The protective cover component is fixedly connected to the end of the flexible light strip, so as to prevent the risk of electric shock from accidentally touching the core wire of the LED flexible light strip during use.

[0015] The beneficial effects of this application are as follows: By adopting a linear constant current parallel power supply method for the LED lighting units, the brightness difference between the first and second parts of the light strip is small. The failure of a certain LED bead or unit does not affect the normal operation of other units. Furthermore, it can be cut or spliced ​​according to the minimum unit length. When the light strip is powered by AC120V-AC230V or AC120V, the cascade length of the light strip can reach 50-100 meters.

[0016] The interaction between fuse F1 and varistor RV1 helps to solve problems such as surge impact and short circuit of the LED strip. By connecting thermistor RT1 in series between the LED beads in the LED series circuit, when the circuit temperature rises, thermistor RT1 senses it and increases its resistance, thereby reducing the current and lowering the temperature, achieving the purpose of protecting the circuit.

[0017] By using high-performance weather-resistant silicone to create a diffusion silicone shell layer, a light-shielding silicone shell layer, and a transparent silicone layer, the product features excellent sealing, high temperature resistance, and strong UV resistance, thereby greatly enhancing its performance.

[0018] By placing a PC cover layer on the LED beads in the LED lighting unit, the LED beads are protected and their lifespan is extended, thereby enhancing the reliability of the LED lighting unit.

[0019] By setting a tensile strength layer made of PEF sheet with copper strips on the back of the LED lighting unit, the tensile strength is greatly improved. On the other hand, the copper strip contacts the L and N electrode copper foils on the back of the lamp board, which reduces the voltage drop of the lamp strip and increases the heat dissipation effect.

[0020] By combining auxiliary fixing components and long rope components, the flexible LED strip can be suspended and applied in various scenarios, avoiding problems such as breakage or damage to the internal circuitry of the flexible LED strip due to its own weight. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1This is a structural schematic diagram of a high-voltage linear lighting LED flexible light strip according to this utility model.

[0023] Figure 2 This is a schematic diagram of the circuit structure of the LED lighting unit of this utility model;

[0024] Figure 3 This is a structural schematic diagram of the LED flexible light strip, auxiliary fixing component, long rope component, and protective cover component of this utility model.

[0025] Attached image labels:

[0026] 1-Diffusing silicone shell layer, 2-Transparent silicone layer, 3-PC cover layer, 4-LED lamp bead, 5-Light-shielding silicone shell layer, 6-Tension layer, 7-Flexible light strip, 8-Auxiliary fixing component, 9-Long rope component, 10-Protective cover component. Detailed Implementation

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. This utility model can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] A high-voltage linear LED flexible light strip includes several LED lighting units, a diffuser silicone shell layer, a light-shielding silicone shell layer, a transparent silicone layer, a PC cover layer, and a tensile strength layer. The light-shielding silicone shell layer has grooves for fixing the LED lighting units. The tensile strength layer is located on the back of the LED lighting units. The PC cover layer is located on top of the LED lighting units. The transparent silicone layer covers the LED lighting units and the PC cover layer. The diffuser silicone shell layer, the light-shielding silicone shell layer, and the transparent silicone layer are co-extruded together. The LED lighting units are powered by a linear constant current parallel power supply, achieving a small difference in brightness between the first and second ends of the light strip.

[0030] Optionally, the materials used to make the diffusion silicone shell layer, the light-shielding silicone shell layer, and the transparent silicone layer include weather-safe silicone. By using high-performance weather-safe silicone to make the diffusion silicone shell layer, the light-shielding silicone shell layer, and the transparent silicone layer, they have the characteristics of good sealing performance, high temperature resistance, and strong UV resistance, thereby greatly enhancing the performance of the product.

[0031] Optionally, a PC cover layer is disposed at the LED chips in the LED lighting unit to protect them. By disposing of the PC cover layer at the LED chips in the LED lighting unit, the LED chips are protected, their lifespan is extended, and the reliability of the LED lighting unit is enhanced. Optionally, a lens layer for focusing or diffusing light is disposed between the PC cover layer and the LED chips in the LED lighting unit. It should be noted that the coverage area of ​​the PC cover layer can be set according to actual usage, and all instances where the PC cover layer is used to protect the LED lighting unit fall within the protection scope of this application.

[0032] The back of the LED lighting unit is provided with a tensile strength layer, which can optionally be composed of a PEF sheet with copper strips. By setting a tensile strength layer composed of a PEF sheet with copper strips on the back of the LED lighting unit, the tensile strength is greatly improved. On the other hand, the copper strips are in contact with the L and N electrode copper foils on the back of the lamp board, which reduces the voltage drop of the lamp strip and also increases the heat dissipation effect.

[0033] like Figure 2 As shown, the LED lighting unit includes a capacitor C1, a resistor R1, an LED series circuit, a rectifier bridge circuit, and a linear IC circuit. The positive AC input terminal of the rectifier bridge circuit is connected to the L terminal of the AC power supply, the negative AC input terminal of the rectifier bridge circuit is connected to the N terminal of the AC power supply, the positive DC output terminal of the rectifier bridge circuit is connected to the positive terminal of the LED series circuit, the negative DC output terminal of the rectifier bridge circuit is connected to one end of the capacitor C1, one end of the resistor R1, and the GND pin of the chip U1B in the linear IC circuit, respectively. The REXT pin of the chip U1B in the linear IC circuit is connected to the other end of the resistor R1, and the OUT pin of the chip U1B in the linear IC circuit is connected to the other end of the capacitor C1 and the negative terminal of the LED series circuit, respectively.

[0034] Furthermore, the LED lighting unit also includes a protection circuit, which comprises a fuse F1 and a varistor RV1. One end of the fuse F1 is connected to the low (L) terminal of the AC power supply, and the other end is connected to both the positive input terminal of the rectifier bridge circuit and one end of the varistor RV1. One end of the varistor RV1 is connected to both the negative input terminal of the rectifier bridge circuit and the neutral (N) terminal of the AC power supply. The interaction between the fuse F1 and the varistor RV1 helps to mitigate surge damage and short circuits in the LED strip. Additionally, the protection circuit includes a thermistor RT1, connected in series between the LEDs in the LED series circuit. When the circuit temperature rises, the thermistor RT1 senses this and increases its resistance, thereby reducing the current and lowering the temperature, thus protecting the circuit.

[0035] To improve the safety of LED flexible light strips, a high-voltage linear lighting LED flexible light strip is provided, which also includes an auxiliary fixing component and a long rope component. The auxiliary fixing component has a ring for the long rope component to pass through. The auxiliary fixing component is fixed to the outer shell of the flexible light strip. The long rope component is connected to the ring of the auxiliary fixing component. By combining the auxiliary fixing component and the long rope component, the flexible light strip can be suspended and applied in various scenarios, avoiding problems such as breakage and damage to the internal circuit of the flexible light strip due to its own weight.

[0036] To further improve the safety of LED flexible light strips, a high-voltage linear lighting LED flexible light strip also includes a protective cover component. The protective cover component has a groove that matches the end of the flexible light strip. The protective cover component is fixedly connected to the end of the flexible light strip, so as to prevent the risk of electric shock from accidentally touching the core wire of the LED flexible light strip during use.

[0037] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A high-voltage linear lighting LED flexible light strip, characterized in that, The device includes several LED lighting units, a diffuser silicone shell layer, a light-shielding silicone shell layer, a transparent silicone layer, a PC cover layer, and a tensile strength layer. The light-shielding silicone shell layer has grooves for fixing the LED lighting units. The tensile strength layer is located on the back of the LED lighting units. The PC cover layer is located on top of the LED lighting units. The transparent silicone layer covers the LED lighting units and the PC cover layer. The diffuser silicone shell layer, the light-shielding silicone shell layer, and the transparent silicone layer are co-extruded together. The LED lighting units are powered by a linear constant current parallel power supply to achieve a small difference in brightness between the first and second ends of the light strip.

2. The high-voltage linear lighting LED flexible strip according to claim 1, characterized in that, The materials used to manufacture the diffusion silicone shell layer, the light-shielding silicone shell layer, and the transparent silicone layer include weather-safe silicone.

3. The high-voltage linear lighting LED flexible light strip according to claim 1, characterized in that, The PC cover is disposed on the LED beads in the LED lighting unit to protect the LED beads.

4. The high-voltage linear lighting LED flexible strip according to claim 1, characterized in that, A lens layer for focusing or diffusing light is provided between the PC cover and the LED beads in the LED lighting unit.

5. The high-voltage linear lighting LED flexible strip according to claim 1, characterized in that, The tensile strength layer is composed of a PEF sheet with copper foil.

6. The high-voltage linear lighting LED flexible strip according to claim 1, characterized in that, The LED lighting unit includes a capacitor C1, a resistor R1, an LED series circuit, a rectifier bridge circuit, and a linear IC circuit. The positive AC input terminal of the rectifier bridge circuit is connected to the L terminal of the AC power supply, the negative AC input terminal of the rectifier bridge circuit is connected to the N terminal of the AC power supply, the positive DC output terminal of the rectifier bridge circuit is connected to the positive terminal of the LED series circuit, the negative DC output terminal of the rectifier bridge circuit is connected to one end of the capacitor C1, one end of the resistor R1, and the GND pin of the chip U1B in the linear IC circuit, respectively. The REXT pin of the chip U1B in the linear IC circuit is connected to the other end of the resistor R1, and the OUT pin of the chip U1B in the linear IC circuit is connected to the other end of the capacitor C1 and the negative terminal of the LED series circuit, respectively.

7. The high-voltage linear lighting LED flexible strip according to claim 6, characterized in that, The LED lighting unit also includes a protection circuit, which includes a fuse F1 and a varistor RV1. One end of the fuse F1 is connected to the L terminal of the AC power supply, and the other end of the fuse F1 is connected to the positive AC input terminal of the rectifier bridge circuit and one end of the varistor RV1. One end of the varistor RV1 is connected to the negative AC input terminal of the rectifier bridge circuit and the N terminal of the AC power supply.

8. The high-voltage linear lighting LED flexible light strip according to claim 7, characterized in that, The protection circuit also includes a thermistor RT1, which is connected in series between the LED beads in the LED series circuit. When the circuit temperature rises, the thermistor RT1 senses the temperature and increases its resistance, thereby reducing the current and lowering the temperature, thus achieving the purpose of protecting the circuit.

9. The high-voltage linear lighting LED flexible strip according to claim 8, characterized in that, It also includes an auxiliary fixing component and a long rope component. The auxiliary fixing component is provided with a ring for the long rope component to pass through. The auxiliary fixing component is fixed to the outer shell layer of the flexible light strip, and the long rope component is connected to the ring of the auxiliary fixing component.

10. The high-voltage linear lighting LED flexible light strip according to claim 9, characterized in that, It also includes a protective cover component, which has a groove adapted to the end of the flexible LED strip, and the protective cover component is fixedly connected to the end of the flexible LED strip.

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