LED lamp strip structure capable of reducing energy consumption
By combining flexible PCB and heat dissipation copper plate, the heat generation problem caused by high power of LED light strip is solved, resulting in reduced energy consumption and extended lifespan, ensuring stable operation and efficient lighting of the light strip.
Patent Information
- Application Number
- CN202520816168.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-27
AI Technical Summary
Traditional LED light strips generate a sharp increase in heat when used at high power or high current, which shortens their lifespan, may cause circuit aging and fire, and have high energy consumption.
The system employs a flexible PCB design, combined with independently addressable chips and a heat sink copper plate. It reduces current through a parallel hybrid circuit design, achieves separation of power supply and signal, and utilizes the heat sink copper plate to quickly dissipate heat, preventing components from overheating.
It effectively reduces energy consumption, extends the lifespan of LED light strips, maintains stable lighting effects, avoids light decay and performance degradation caused by high temperatures, and improves product quality.
Smart Images
Figure CN223939391U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED light strip technology, specifically to an energy-saving LED light strip structure. Background Technology
[0002] LED light strips are lighting fixtures that use light-emitting diodes (LEDs) as their light source. They are installed on walls and ceilings for lighting or decoration. Traditional LED light strip products typically use 12V or 24V power supplies and achieve dynamic lighting effects through segmented control. Typical solutions include: 12V / 60 LEDs / 20 segments with three-point control; 24V / 60 LEDs / 10 segments with six-point control; 24V / 64 LEDs / 16 segments with four-point control; and 12V and 24V block lights and point light sources, etc. They are widely used in projects and have long service lives, so their energy consumption remains high. When LED strip power or current is too high, such as high-power strips (above 14W per meter), especially large-size LED beads like 5050 and 5630, coupled with prolonged use in a confined environment, the high power consumption leads to a sharp increase in heat generation, severely shortening the lifespan of the LED strip, accelerating the light decay of the beads, reducing brightness, and in extreme cases, potentially causing circuit aging, insulation melting, or even fire. Therefore, there is an urgent need for a new LED strip structure that can solve the above-mentioned technical problems through chip optimization and synergistic optimization of electronic layout. Utility Model Content
[0003] This invention provides an energy-saving LED strip structure that can reduce the current input to the LED beads and quickly conduct away the heat generated by the flexible PCB, preventing the top components from being damaged due to overheating and ensuring normal and stable operation.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a low-energy LED light strip structure, comprising: a flexible PCB, wherein the flexible PCB has multiple light-emitting segments arranged horizontally in the extension direction, each light-emitting segment having a head interface and a tail interface at both ends, and any two adjacent light-emitting segments being interconnected through the head interface and the tail interface; multiple independently addressable chips, each fixed on the top of each light-emitting segment and electrically connected to the corresponding head interface; multiple LED beads, each disposed on the top of each light-emitting segment and electrically connected to the corresponding independently addressable chip; and a heat dissipation copper plate, which is overlapped on the bottom of the flexible PCB, and the heat dissipation copper plate has a cutting groove between any interconnected head interface and tail interface.
[0005] Preferably, the heat dissipation copper plate is connected to the bottom of the flexible PCB by double-sided adhesive; the cutting groove is a long groove vertically opened in the middle of the heat dissipation copper plate; the first end interface and the last end interface are both located within the cutting groove.
[0006] Preferably, any two adjacent light-emitting segments are integral structures, and the first end interface and the last end interface between the two light-emitting segments are printed circuits that are electrically connected to each other; the top of the flexible PCB is provided with a cutting mark corresponding to the cutting groove.
[0007] Preferably, the first end interface at one end of the flexible PCB is electrically connected to a 12V or 24V power supply and a segment controller.
[0008] Preferably, each of the light-emitting segments is provided with three, four, or six LED beads.
[0009] The beneficial effects of this utility model are as follows: The flexible PCB is powered by DC through a 12V or 24V power supply. When each light-emitting segment has three, four, or six LEDs, by limiting the length of the flexible PCB, i.e., setting the number of light-emitting segments, the flexible PCB can simultaneously contain 56, 60, 64, 68, 72, 76, or 80 LEDs. Each LED has a rated voltage of 3V. Therefore, through a hybrid series and parallel circuit design, every three, four, or six LEDs share a power supply unit. By connecting the power supply units in parallel, the voltage of the 12V or 24V power supply is fully utilized, and voltage drop problems are avoided. Under the action of the segment controller, the flexible PCB is divided into light-emitting segments, i.e., each light-emitting segment has three, four, or six LEDs, i.e., one control point. Single-line serial signal control is achieved through distributed control chips such as FW1932, MT16703, etc., and independently addressed chips. Each segment is independently addressed, supporting segmented independent dimming / color adjustment. Furthermore, a power supply and signal separation design is implemented: power lines and signal lines are separated, with power lines directly connected in parallel to each power supply unit, and signal lines using single-wire cascading to reduce the number of wires. In addition, the heat dissipation copper plate at the bottom of the flexible PCB has excellent thermal conductivity, quickly dissipating the heat generated by the flexible PCB and preventing damage to top components due to overheating, ensuring normal and stable operation. Moreover, heat dissipation of the flexible PCB reduces light decay and performance degradation of the LED strip caused by high temperatures, thereby extending its lifespan and helping to maintain the stable performance of the LED strip, ensuring good lighting effects for a longer period. Using double-sided adhesive to bond the heat dissipation copper plate to the flexible PCB offers many advantages, including convenient installation, tight fit, insulation protection, shock absorption, adaptability to different shapes and sizes, and a neat and aesthetically pleasing appearance. These advantages help improve the heat dissipation performance, lifespan, and product quality of the LED strip. The cutting groove effectively reduces cutting difficulty, making cutting more convenient and labor-saving, while also effectively preventing short circuits between the cut of the heat dissipation copper plate and the printed conductors of the flexible PCB. Attached Figure Description
[0010] 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.
[0011] Figure 1 This is a schematic diagram showing the distribution of the top components of the LED strip of this utility model;
[0012] Figure 2 This is a schematic diagram of the heat dissipation copper plate structure of this utility model;
[0013] Figure 3 This is a perspective view of the present invention.
[0014] In the diagram: 1. Flexible PCB; 2. Light-emitting segment; 3. First-end interface; 4. Last-end interface; 5. Independently addressed chip; 6. LED bead; 7. Heat sink copper plate; 9. Cutting slot; 10. Double-sided adhesive; 11. Cutting mark; 12. Power supply; 13. Segment controller. Detailed Implementation
[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0016] according to Figure 1 , Figure 2 , Figure 3 As shown, an energy-saving LED light strip structure includes: a flexible PCB 1, which has multiple light-emitting segments 2 arranged horizontally in the extension direction. Each light-emitting segment 2 has a head interface 3 and a tail interface 4 at both ends, and any two adjacent light-emitting segments 2 are connected to each other through the head interface 3 and the tail interface 4; multiple independently addressable chips 5, which are respectively fixed on the top of each light-emitting segment 2 and electrically connected to the corresponding head interface 3; multiple LED beads 6, which are respectively disposed on the top of each light-emitting segment 2 and electrically connected to the corresponding independently addressable chip 5; and a heat dissipation copper plate 7, which is overlapped on the bottom of the flexible PCB 1, and the heat dissipation copper plate 7 has a cutting groove 9 between the head interface 3 and the tail interface 4 that are connected to each other.
[0017] The flexible PCB 1 has a first-end interface 3 that is electrically connected to a 12V or 24V power supply 12 and a segment controller 13. Each light-emitting segment 2 is provided with four LEDs 6. The independent addressing chip 5 communicates with the first-end interface 3 using a single-wire cascaded signal control protocol.
[0018] In the above configuration, the flexible PCB1 is powered by DC through a 12V or 24V power supply 12. When each light-emitting segment 2 has three, four, or six LED beads 6, by limiting the length of the flexible PCB1, i.e. setting the number of light-emitting segments 2, the flexible PCB1 can simultaneously contain 56, 60, 64, 68, 72, 76, or 80 LED beads 6. Each LED bead 6 has a rated voltage of 3V. Therefore, through a series and parallel hybrid circuit design, every three, four, or six LED beads 6 share a power supply unit. By connecting the power supply units in parallel, the voltage of the 12V or power supply 12 is fully utilized, and voltage drop problems are avoided. Under the control of the segment controller 13, the flexible PCB 1 is divided into light-emitting segments 2, with each segment containing three, four, or six LEDs 6, representing one control point. Single-line serial signal control is achieved through distributed control chips such as FW1932 and MT16703, as well as independently addressable chips 5. Each segment is independently addressable, supporting segmented independent dimming / color adjustment. Furthermore, a power supply and signal separation design is implemented: the 12 power supply lines are separated from the signal lines. The 12 power supply lines are directly connected in parallel to each power supply unit, while the signal lines use single-line cascading to reduce the number of wires.
[0019] Furthermore, the heat dissipation copper plate 7 at the bottom of the flexible PCB1 has excellent thermal conductivity, which can quickly conduct away the heat generated by the flexible PCB1, preventing the top components from being damaged due to overheating and ensuring its normal and stable operation. Moreover, by dissipating heat from the flexible PCB1, the light decay and performance degradation of the LED strip caused by high temperature can also be reduced, thereby extending its service life and helping to maintain the stable performance of the LED strip, allowing it to maintain good lighting effects for a longer period of time.
[0020] The heat dissipation copper plate 7 is connected to the bottom of the flexible PCB 1 via double-sided adhesive 10; the cutting groove 9 is a long groove vertically formed in the middle of the heat dissipation copper plate 7; the first end interface 3 and the last end interface 4 are both located within the cutting groove 9. Any two adjacent light-emitting segments 2 are integral structures, and the first end interface 3 and the last end interface 4 between the two light-emitting segments 2 are printed circuits electrically connected to each other; the top of the flexible PCB 1 is provided with a cutting mark 11 corresponding to the cutting groove 9.
[0021] The above-described setup offers numerous advantages for bonding the heat dissipation copper plate 7 to the flexible PCB 1 using double-sided adhesive tape 10. These advantages include convenient installation, tight adhesion, insulation protection, shock absorption, adaptability to different shapes and sizes, and a neat and aesthetically pleasing appearance. These advantages contribute to improving the heat dissipation performance, lifespan, and product quality of the LED light strip. Furthermore, the cutting groove 9 effectively reduces the difficulty of cutting, making it more convenient and labor-saving. It also effectively prevents short circuits between the cut edge of the heat dissipation copper plate 7 and the printed conductors of the flexible PCB 1.
[0022] To meet the needs of various usage scenarios, the first end interface 3 at one end of the flexible PCB1 can be electrically connected to a 12V or 24V power supply 12 and a segment controller 13, and each light-emitting segment 2 can be provided with three, four, or six LED beads 6.
[0023] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A low-energy LED light strip structure, characterized in that, include: A flexible PCB (1) is provided with multiple light-emitting segments (2) arranged horizontally in the extension direction. Each light-emitting segment (2) is provided with a head interface (3) and a tail interface (4) at both ends. Any two adjacent light-emitting segments (2) are connected to each other through the head interface (3) and the tail interface (4). Independent addressing chip (5), there are multiple independent addressing chips (5), and they are fixed on the top of each of the light-emitting segments (2) and electrically connected to the corresponding head interface (3); LED beads (6), wherein there are multiple LED beads (6) and each LED bead (6) is disposed at the top of each of the light-emitting segments (2) and electrically connected to the corresponding independent addressing chip (5); A heat dissipation copper plate (7) is stacked on the bottom of the flexible PCB (1), and the heat dissipation copper plate (7) is provided with a cutting groove (9) between the head interface (3) and the tail interface (4) that are arbitrarily connected to each other.
2. The energy-saving LED light strip structure according to claim 1, characterized in that: The heat dissipation copper plate (7) is connected to the bottom of the flexible PCB (1) by double-sided adhesive (10); the cutting groove (9) is a long groove vertically opened in the middle of the heat dissipation copper plate (7); the first end interface (3) and the last end interface (4) are both located within the cutting groove (9).
3. The energy-saving LED light strip structure according to claim 2, characterized in that: Any two adjacent light-emitting segments (2) are integral structures, and the first end interface (3) and the last end interface (4) between the two light-emitting segments (2) are printed circuits that are electrically connected to each other; the top of the flexible PCB (1) is provided with a cutting mark (11) corresponding to the cutting groove (9).
4. The energy-saving LED light strip structure according to claim 1, characterized in that: The first end interface (3) at one end of the flexible PCB (1) is electrically connected to a 12V or 24V power supply (12) and a segment controller (13).
5. The energy-saving LED light strip structure according to claim 1, characterized in that: Each of the light-emitting segments (2) is provided with three, four, or six LED beads (6).