Solar COB lamp strip

Abstract

The invention discloses a solar COB lamp strip which comprises a controller, a solar photovoltaic panel, a rechargeable battery and a COB lamp strip body, the solar photovoltaic panel is electrically connected with the controller, the controller is electrically connected with the COB lamp strip body, the controller is electrically connected with the rechargeable battery, and the rechargeable battery is electrically connected with the COB lamp strip body. The controller comprises a voltage stabilizing chip VR1, a charging chip U1, a main control chip U2, a triode Q8, a diode D7, a diode D9 and a diode D10. The LED lamp is convenient to install and use, when the LED lamp is used outdoors, the solar photovoltaic panel converts solar energy into electric energy in the daytime and stores the electric energy in the rechargeable battery, and the rechargeable battery supplies the electric energy to the COB lamp strip for use at night; a main control chip U2 of the controller controls a charging chip U1, a triode Q8, a diode D7, a diode D9 and a diode D10 to intermittently amplify current and supply the current to the COB lamp strip for use, the COB lamp strip intermittently flashes, electric energy is saved, and the use effect is good.

Description

Technical Field

[0001] This invention relates to the field of light strip technology, specifically to a solar-powered COB light strip. Background Technology

[0002] COB (Chip-on-Board) LED strips are strip-shaped LED products formed by assembling LED chips onto FPC (Flexible Printed Circuit). They offer advantages such as long lifespan and energy efficiency, leading to their increasingly widespread use in the lighting industry. However, existing COB LED strips are generally powered by a driver, which doesn't fully utilize solar energy resources when used outdoors. Furthermore, COB LED strips are completely illuminated at night, wasting energy and resulting in suboptimal performance. Therefore, to avoid these shortcomings, improvements to the existing technology are necessary. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies of the prior art and provide an energy-efficient solar COB light strip that makes full use of resources.

[0004] This invention is achieved through the following technical solution:

[0005] A solar-powered COB light strip includes a controller, a solar photovoltaic panel, a rechargeable battery, and the COB light strip. The solar photovoltaic panel is electrically connected to the controller, the controller is electrically connected to the COB light strip, and the controller is electrically connected to the rechargeable battery. The controller includes a voltage regulator chip VR1, a charging chip U1, a main control chip U2, a transistor Q8, diodes D7, D9, and D10. The second pin of the charging chip U1 is connected to the positive terminal of the rechargeable battery. The positive terminal of the diode D7 is connected to the positive terminal of the rechargeable battery. The negative terminal of the diode D7 is connected to the positive terminal of the COB light strip via a switch S1. Switch S1 is connected to the positive terminal of diode D9. The negative terminal of diode D9 is connected to the fourth pin of charging chip U1. The base of transistor Q8 is connected to the sixth pin of charging chip U1. The collector of transistor Q8 is connected to the fourth pin of charging chip U1. The emitter of transistor Q8 is connected to the positive terminal of diode D10. The negative terminal of diode D10 is connected to the negative terminal of the rechargeable battery. The eighth pin of charging chip U1 is connected to the negative terminal of the rechargeable battery. The tenth pin of main control chip U2 is connected to the fifth pin of charging chip U1. The ninth pin of main control chip U2 is connected to the seventh pin of charging chip U1.

[0006] Furthermore, the controller also includes diodes D2, D4, and D8. The first pin of the voltage regulator chip VR1 is connected to the positive terminal of the solar photovoltaic panel. The second pin of the voltage regulator chip VR1 is connected to the positive terminals of diodes D2 and D4 respectively via inductor L1 and button SB1. The positive terminals of diodes D2 and D4 are connected to the positive terminal of diode D8 respectively via inductor L2. The negative terminal of diode D8 is connected to the positive terminal of the rechargeable battery. The positive terminals of diodes D2 and D4 are connected to the first pin of the charging chip U1 respectively.

[0007] Furthermore, the controller also includes a transient voltage suppression diode D11. The second pin of the voltage regulator chip VR1 is connected to the positive terminal of the transient voltage suppression diode D11 through an inductor L1. The positive terminal of the transient voltage suppression diode D11 is connected to the eleventh pin of the main control chip U2, and the negative terminal of the transient voltage suppression diode D11 is connected to the first pin of the charging chip U1.

[0008] Furthermore, the controller also includes a transistor Q6 and a polarized capacitor C8. The base of the transistor Q6 is connected to the fourteenth pin of the main control chip U2, the collector of the transistor Q6 is connected to the first pin of the charging chip U1, the emitter of the transistor Q6 is connected to the negative terminal of the COB LED strip, the fourteenth pin of the main control chip U2 is grounded through the capacitor C6, the positive terminal of the polarized capacitor C8 is connected to the collector of the transistor Q6, and the negative terminal of the polarized capacitor C8 is connected to the emitter of the transistor Q6.

[0009] Furthermore, the controller also includes a field-effect transistor Q1. The gate (G) terminal of the field-effect transistor Q1 is connected to the second pin of the voltage regulator chip VR1 through resistors R8 and R7 and a thermistor RT1. The drain (D) terminal of the field-effect transistor Q1 is connected to the second pin of the voltage regulator chip VR1 through an inductor L1. The source (S) terminal of the field-effect transistor Q1 is connected to the sixth pin of the main control chip U2 and the third pin of the charging chip U1, respectively.

[0010] Furthermore, the controller also includes a transistor Q2, a Zener diode D1, a diode D3, a diode D5, and a polarized capacitor C2. The base of transistor Q2 is connected to the cathode of Zener diode D1, the anode of Zener diode D1 is connected to pin 7 of the main control chip U2, the anode of Zener diode D1 is connected to pin 8 of the main control chip U2 through resistor R6, the collector of transistor Q2 is connected to pin 8 of the main control chip U2, and the collector of transistor Q2 is connected to the polarized capacitor C2. The negative terminal of the transistor is connected, the positive terminal of the polarized capacitor C2 is connected to the second pin of the voltage regulator chip VR1 through resistor R7 and thermistor RT1, the emitter of the transistor Q2 is connected to the negative terminal of the diode D3, the positive terminal of the diode D3 is connected to the second pin of the voltage regulator chip VR1 through thermistor RT1, the emitter of the transistor Q2 is connected to the positive terminal of the Zener diode D1, the positive terminal of the diode D5 is connected to the seventh pin of the main control chip U2, and the negative terminal of the diode D5 is grounded through capacitor C6.

[0011] Furthermore, the controller also includes LEDs D25, D26, D27, D28, and D29 connected in sequence. The negative terminal of LED D25 is grounded through capacitor C5, and the negative terminal of LED D25 is connected to the first pin of the main control chip U2 through resistor R1. The negative terminal of LED D26 is connected to the second pin of the main control chip U2 through resistor R2. The negative terminal of LED D27 is connected to the third pin of the main control chip U2 through resistor R3. The negative terminal of LED D28 is connected to the fourth pin of the main control chip U2 through resistor R4. The negative terminal of LED D29 is connected to the fifth pin of the main control chip U2 through resistor R5. The positive terminal of LED D29 is grounded through capacitor C6.

[0012] Furthermore, the voltage regulator chip VR1 has a chip model of K30P02AT, the charging chip U1 has a chip model of TA345, and the main control chip U2 is a microcontroller.

[0013] Furthermore, the COB light strip includes several light strip units connected in parallel, each light strip unit includes a flexible circuit board, the flexible circuit board is provided with several LED chips connected in series, and the flexible circuit board includes a front insulating layer, a circuit layer and a back insulating layer stacked from top to bottom.

[0014] Furthermore, the front insulating layer is provided with positive electrode pad holes, negative electrode pad holes and LED chip pad holes, and the circuit layer is provided with positive electrode conductive copper foil, negative electrode conductive copper foil, positive electrode welding copper foil and negative electrode welding copper foil for welding the LED chip. A connecting copper foil connects the positive electrode welding copper foil and the negative electrode welding copper foil. The positive electrode connecting copper foil at the beginning is connected to the positive electrode conductive copper foil through the beginning connecting copper foil, and the negative electrode connecting copper foil at the end is connected to the negative electrode conductive copper foil through the end connecting copper foil.

[0015] Compared to existing technologies, this invention, by setting up a controller, a solar photovoltaic panel, a rechargeable battery, and a COB light strip, includes a voltage regulator chip VR1, a charging chip U1, a main control chip U2, a transistor Q8, and diodes D7, D9, and D10. When used outdoors, the solar photovoltaic panel converts solar energy into electrical energy during the day and stores it in the rechargeable battery. At night, the rechargeable battery supplies electrical energy to the COB light strip. Simultaneously, the main control chip U2 of the controller controls the charging chip U1, transistor Q8, diodes D7, D9, and D10 to intermittently amplify the current to supply the COB light strip. The COB light strip flashes intermittently, saving energy and providing a better performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the control circuit for the solar COB light strip of the present invention;

[0018] Figure 2 This is a schematic diagram of the COB light strip of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the front insulating layer of the present invention;

[0020] Figure 4 This is a schematic diagram of the circuit layer structure of the present invention.

[0021] In the diagram: 1-LED strip unit; 2-LED chip; 3-positive electrode pad hole; 4-negative electrode pad hole; 5-LED chip pad hole; 6-positive electrode conductive copper foil; 7-negative electrode conductive copper foil; 8-positive electrode welding copper foil; 9-negative electrode welding copper foil; 10-connecting copper foil; 11-starting end connecting copper foil; 12-end connecting copper foil. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0023] like Figures 1 to 4 The present invention discloses a solar-powered COB light strip, comprising a controller, a solar photovoltaic panel, a rechargeable battery, and a COB light strip. The solar photovoltaic panel is electrically connected to the controller, the controller is electrically connected to the COB light strip, and the controller is electrically connected to the rechargeable battery. The controller includes a voltage regulator chip VR1, a charging chip U1, a main control chip U2, a transistor Q8, diodes D7, D9, and D10. The second pin of the charging chip U1 is connected to the positive terminal of the rechargeable battery, the positive terminal of diode D7 is connected to the positive terminal of the rechargeable battery, and the negative terminal of diode D7 is connected to the positive terminal of the COB light strip via a switch S1. The negative terminal of D7 is connected to the positive terminal of diode D9 through switch S1. The negative terminal of diode D9 is connected to the fourth pin of charging chip U1. The base of transistor Q8 is connected to the sixth pin of charging chip U1. The collector of transistor Q8 is connected to the fourth pin of charging chip U1. The emitter of transistor Q8 is connected to the positive terminal of diode D10. The negative terminal of diode D10 is connected to the negative terminal of the rechargeable battery. The eighth pin of charging chip U1 is connected to the negative terminal of the rechargeable battery. The tenth pin of main control chip U2 is connected to the fifth pin of charging chip U1. The ninth pin of main control chip U2 is connected to the seventh pin of charging chip U1. By configuring a controller, solar photovoltaic panels, rechargeable batteries, and COB light strips, the controller includes a voltage regulator chip VR1, a charging chip U1, a main control chip U2, a transistor Q8, and diodes D7, D9, and D10. When used outdoors, the solar photovoltaic panels convert solar energy into electrical energy during the day and store it in the rechargeable battery. At night, the rechargeable battery supplies electrical energy to the COB light strips. Simultaneously, the main control chip U2 controls the charging chip U1, transistor Q8, diodes D7, D9, and D10 to intermittently amplify the current to supply the COB light strips. The COB light strips flash intermittently, saving energy and providing good performance.

[0024] The controller also includes diodes D2, D4, and D8. The first pin of the voltage regulator chip VR1 is connected to the positive terminal of the solar photovoltaic panel. The second pin of the voltage regulator chip VR1 is connected to the positive terminals of diodes D2 and D4 respectively through inductor L1 and button SB1. The positive terminals of diodes D2 and D4 are connected to the positive terminal of diode D8 respectively through inductor L2. The negative terminal of diode D8 is connected to the positive terminal of the rechargeable battery. The positive terminals of diodes D2 and D4 are connected to the first pin of the charging chip U1, which improves the current stability of the charging battery and ensures the flatness of the charging current.

[0025] The controller also includes a transient voltage suppression diode D11. The second pin of the voltage regulator chip VR1 is connected to the positive terminal of the transient voltage suppression diode D11 through the inductor L1. The positive terminal of the transient voltage suppression diode D11 is connected to the eleventh pin of the main control chip U2, and the negative terminal of the transient voltage suppression diode D11 is connected to the first pin of the charging chip U1 to prevent the voltage from being too high at any moment and effectively protect the normal operation of the charging chip U1 and the main control chip U2.

[0026] The controller also includes a transistor Q6 and a polarized capacitor C8. The base of transistor Q6 is connected to the fourteenth pin of the main control chip U2, the collector of transistor Q6 is connected to the first pin of the charging chip U1, and the emitter of transistor Q6 is connected to the negative terminal of the COB LED strip. The fourteenth pin of the main control chip U2 is grounded through capacitor C6. The positive terminal of polarized capacitor C8 is connected to the collector of transistor Q6, and the negative terminal of polarized capacitor C8 is connected to the emitter of transistor Q6, ensuring the safety and stability of the power supply to the COB LED strip.

[0027] The controller also includes a field-effect transistor (FET) Q1. The gate (G) terminal of FET Q1 is connected to the second pin of the voltage regulator chip VR1 through resistors R8 and R7 and the thermistor RT1. The drain (D) terminal of FET Q1 is connected to the second pin of the voltage regulator chip VR1 through inductor L1. The source (S) terminal of FET Q1 is connected to the sixth pin of the main control chip U2 and the third pin of the charging chip U1, respectively, to improve the stability of the voltage input and effectively protect the normal operation of the main control chip U2 and the charging chip U1.

[0028] The controller also includes transistor Q2, Zener diodes D1, D3, and D5, and polarized capacitor C2. The base of transistor Q2 is connected to the cathode of Zener diode D1, the anode of Zener diode D1 is connected to pin 7 of main control chip U2, the anode of Zener diode D1 is connected to pin 8 of main control chip U2 through resistor R6, the collector of transistor Q2 is connected to pin 8 of main control chip U2, and the collector of transistor Q2 is connected to the cathode of polarized capacitor C2. The anode of polarized capacitor C2 is connected to... Thermistor RT1 is connected to the second pin of voltage regulator chip VR1. The emitter of transistor Q2 is connected to the negative terminal of diode D3. The positive terminal of diode D3 is connected to the second pin of voltage regulator chip VR1 through thermistor RT1. The emitter of transistor Q2 is connected to the positive terminal of Zener diode D1. The positive terminal of diode D5 is connected to the seventh pin of the main control chip U2. The negative terminal of diode D5 is grounded through capacitor C6, which improves the stability of voltage input, effectively protects the normal operation of main control chip U2, and improves the stability of charging control.

[0029] The controller also includes LEDs D25, D26, D27, D28, and D29 connected in sequence. The negative terminal of LED D25 is grounded through capacitor C5, and the negative terminal of LED D25 is connected to the first pin of the main control chip U2 through resistor R1. The negative terminal of LED D26 is connected to the second pin of the main control chip U2 through resistor R2, the negative terminal of LED D27 is connected to the third pin of the main control chip U2 through resistor R3, the negative terminal of LED D28 is connected to the fourth pin of the main control chip U2 through resistor R4, and the negative terminal of LED D29 is connected to the fifth pin of the main control chip U2 through resistor R5. The positive terminal of LED D29 is grounded through capacitor C6. LEDs D25, D26, D27, D28, and D29 indicate the charging status, reflecting whether charging is in progress and the amount being charged.

[0030] As a specific implementation method, the voltage regulator chip VR1 has the chip model K30P02AT, the charging chip U1 has the chip model TA345, and the main control chip U2 is a microcontroller that can write control programs to control the COB light strip. It has low production cost and stable control.

[0031] COB LED strips include several LED strip units 1 connected in parallel. Each LED strip unit 1 includes a flexible circuit board. The flexible circuit board has several LED chips 2 connected in series. The flexible circuit board includes a front insulating layer, a circuit layer and a back insulating layer stacked from top to bottom. It has good light-emitting effect, simple structure and low manufacturing cost.

[0032] The front insulating layer has positive electrode pad holes 3, negative electrode pad holes 4 and LED chip pad holes 5. The circuit layer has positive electrode conductive copper foil 6, negative electrode conductive copper foil 7, positive electrode welding copper foil 8 and negative electrode welding copper foil 9 for welding LED chip 2. A connecting copper foil 10 connects the positive electrode welding copper foil 8 and the negative electrode welding copper foil 9. The positive electrode connecting copper foil 8 at the beginning is connected to the positive electrode conductive copper foil 6 through the beginning connecting copper foil 11, and the negative electrode connecting copper foil 9 at the end is connected to the negative electrode conductive copper foil 7 through the end connecting copper foil 12. The wiring is simple, which facilitates the welding of power cords and LED chip 2, and facilitates the stable power supply of COB light strip.

[0033] LED chip 2 is a flip-chip LED chip, which has a simpler connection process. LED chip 2 is coated with fluorescent colloid, which makes the COB light strip emit light more evenly and can effectively prevent glare.

[0034] Both ends of the LED strip unit 1 are marked for easy cutting of the COB LED strip.

[0035] The COB light strip is covered with waterproof adhesive on the outside, which improves its waterproofness and weather resistance, making it convenient for outdoor use.

[0036] As one specific implementation method, the rated voltage of the COB LED strip is 24V.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A solar-powered COB light strip, characterized in that: The device includes a controller, a solar photovoltaic panel, a rechargeable battery, and a COB LED strip. The solar photovoltaic panel is electrically connected to the controller, the controller is electrically connected to the COB LED strip, and the controller is electrically connected to the rechargeable battery. The controller includes a voltage regulator chip VR1, a charging chip U1, a main control chip U2, a transistor Q8, diodes D7, D9, and D10. The second pin of the charging chip U1 is connected to the positive terminal of the rechargeable battery. The positive terminal of the diode D7 is also connected to the positive terminal of the rechargeable battery. The negative terminal of the diode D7 is connected to the positive terminal of the COB LED strip via switch S1. The anode of diode D9 is connected to the positive terminal, the cathode of diode D9 is connected to the fourth pin of charging chip U1, the base of transistor Q8 is connected to the sixth pin of charging chip U1, the collector of transistor Q8 is connected to the fourth pin of charging chip U1, the emitter of transistor Q8 is connected to the anode of diode D10, the cathode of diode D10 is connected to the cathode of the rechargeable battery, the eighth pin of charging chip U1 is connected to the cathode of the rechargeable battery, the tenth pin of main control chip U2 is connected to the fifth pin of charging chip U1, and the ninth pin of main control chip U2 is connected to the seventh pin of charging chip U1.

2. The solar-powered COB light strip according to claim 1, characterized in that: The controller also includes diodes D2, D4, and D8. The first pin of the voltage regulator chip VR1 is connected to the positive terminal of the solar photovoltaic panel. The second pin of the voltage regulator chip VR1 is connected to the positive terminals of diodes D2 and D4 respectively via inductor L1 and button SB1. The positive terminals of diodes D2 and D4 are connected to the positive terminal of diode D8 respectively via inductor L2. The negative terminal of diode D8 is connected to the positive terminal of the rechargeable battery. The positive terminals of diodes D2 and D4 are connected to the first pin of the charging chip U1 respectively.

3. The solar-powered COB light strip according to claim 1, characterized in that: The controller also includes a transient voltage suppression diode D11. The second pin of the voltage regulator chip VR1 is connected to the positive terminal of the transient voltage suppression diode D11 through an inductor L1. The positive terminal of the transient voltage suppression diode D11 is connected to the eleventh pin of the main control chip U2. The negative terminal of the transient voltage suppression diode D11 is connected to the first pin of the charging chip U1.

4. The solar-powered COB light strip according to claim 1, characterized in that: The controller also includes a transistor Q6 and a polarized capacitor C8. The base of transistor Q6 is connected to the fourteenth pin of the main control chip U2, the collector of transistor Q6 is connected to the first pin of the charging chip U1, the emitter of transistor Q6 is connected to the negative terminal of the COB LED strip, the fourteenth pin of the main control chip U2 is grounded through capacitor C6, the positive terminal of polarized capacitor C8 is connected to the collector of transistor Q6, and the negative terminal of polarized capacitor C8 is connected to the emitter of transistor Q6.

5. The solar-powered COB light strip according to claim 1, characterized in that: The controller also includes a field-effect transistor Q1. The gate (G) terminal of the field-effect transistor Q1 is connected to the second pin of the voltage regulator chip VR1 through resistors R8 and R7 and the thermistor RT1. The drain (D) terminal of the field-effect transistor Q1 is connected to the second pin of the voltage regulator chip VR1 through inductor L1. The source (S) terminal of the field-effect transistor Q1 is connected to the sixth pin of the main control chip U2 and the third pin of the charging chip U1.

6. The solar-powered COB light strip according to claim 1, characterized in that: The controller also includes a transistor Q2, a Zener diode D1, a diode D3, a diode D5, and a polarized capacitor C2. The base of transistor Q2 is connected to the cathode of Zener diode D1, the anode of Zener diode D1 is connected to pin 7 of the main control chip U2, the anode of Zener diode D1 is connected to pin 8 of the main control chip U2 through resistor R6, the collector of transistor Q2 is connected to pin 8 of the main control chip U2, and the collector of transistor Q2 is connected to the cathode of polarized capacitor C2. The polarized capacitor C2 is connected to the second pin of the voltage regulator chip VR1 via resistor R7 and thermistor RT1. The emitter of transistor Q2 is connected to the cathode of diode D3. The anode of diode D3 is connected to the second pin of the voltage regulator chip VR1 via thermistor RT1. The emitter of transistor Q2 is connected to the anode of Zener diode D1. The anode of diode D5 is connected to the seventh pin of the main control chip U2. The cathode of diode D5 is grounded via capacitor C6.

7. The solar-powered COB light strip according to claim 1, characterized in that: The controller further includes LEDs D25, D26, D27, D28, and D29 connected in sequence. The negative terminal of LED D25 is grounded through capacitor C5. The negative terminal of LED D25 is connected to the first pin of the main control chip U2 through resistor R1. The negative terminal of LED D26 is connected to the second pin of the main control chip U2 through resistor R2. The negative terminal of LED D27 is connected to the third pin of the main control chip U2 through resistor R3. The negative terminal of LED D28 is connected to the fourth pin of the main control chip U2 through resistor R4. The negative terminal of LED D29 is connected to the fifth pin of the main control chip U2 through resistor R5. The positive terminal of LED D29 is grounded through capacitor C6.

8. The solar-powered COB light strip according to claim 1, characterized in that: The voltage regulator chip VR1 has a chip model of K30P02AT, the charging chip U1 has a chip model of TA345, and the main control chip U2 is a microcontroller.

9. The solar-powered COB light strip according to claim 1, characterized in that: The COB light strip includes several light strip units connected in parallel. Each light strip unit includes a flexible circuit board. The flexible circuit board has several LED chips connected in series. The flexible circuit board includes a front insulating layer, a circuit layer and a back insulating layer stacked from top to bottom.

10. The solar-powered COB light strip according to claim 9, characterized in that: The front insulating layer is provided with positive electrode pad holes, negative electrode pad holes and LED chip pad holes. The circuit layer is provided with positive electrode conductive copper foil, negative electrode conductive copper foil, positive electrode welding copper foil and negative electrode welding copper foil for welding the LED chip. A connecting copper foil connects the positive electrode welding copper foil and the negative electrode welding copper foil. The positive electrode connecting copper foil at the beginning is connected to the positive electrode conductive copper foil through the beginning connecting copper foil, and the negative electrode connecting copper foil at the end is connected to the negative electrode conductive copper foil through the end connecting copper foil.

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