A driverless high-voltage light strip

Abstract

This invention provides a driverless high-voltage LED strip. Each strip uses a one-meter unit as an independent power supply unit. Each strip has several sets of identical units. Each unit includes a substrate, an AC power supply line, several cutting units, and two rectifier bridges. Each cutting unit has several identical LED light-emitting elements. The two rectifier bridges are respectively installed at the beginning and end of the cutting units within each unit. The input terminals of both rectifier bridges are connected to the AC power supply line, and their output terminals are connected in parallel. The parallel output circuit provides rectified power to all LED light-emitting elements in the cutting units within the basic unit. This driverless high-voltage LED strip, using a one-meter unit as an independent power supply unit, only requires one rectifier bridge at each end of the strip, significantly reducing the number of rectifier bridges needed, simplifying the production process, and lowering production costs.

Description

Technical Field

[0001] This invention relates to the field of LED strip manufacturing technology, specifically a driverless high-voltage LED strip. Background Technology

[0002] Currently, existing driverless high-voltage LED strips use a separate rectifier bridge for each cutting unit. Following this manufacturing method, a standard one-meter LED strip would have dozens of cutting units arranged along its length. Numerous rectifier bridges are scattered and soldered around each cutting unit on the LED strip's PCB board, resulting in complex surface mount soldering processes and a huge number of rectifier bridge components, directly increasing the overall material and production costs. Furthermore, the rectifier bridge itself has a certain physical volume, and each dispersed bridge forms an independent light-shielding area on the LED strip's luminous surface. With dozens of bridges distributed along the strip's length, this results in a large number of dark areas, a large total light-shielding area, and poor LED light uniformity. Summary of the Invention

[0003] The purpose of this invention is to provide a driverless high-voltage light strip to solve the technical problems in the background art.

[0004] To achieve the aforementioned objectives, the present invention provides the following technical solution:

[0005] A driverless high-voltage LED strip is disclosed, wherein each strip is powered independently by a one-meter unit. Each strip has several sets of identical units. Each set of units includes a substrate, an AC power supply line, several sets of cutting units, and two rectifier bridges. Each set of cutting units has several identical LED light-emitting elements. The two rectifier bridges are respectively installed at the first and last cutting units of each set of units. The input terminals of both rectifier bridges are connected to the AC power supply line, and the output terminals of both rectifier bridges are connected in parallel. The output circuit after parallel connection provides rectified power to all LED light-emitting elements on all cutting units within the basic unit.

[0006] The AC power supply line includes an L-pole line layer and an N-pole line layer arranged along the length of the substrate. The L-pole line layer and the N-pole line layer are arranged in parallel at the top and bottom ends of the substrate. The input terminals of the two rectifier bridges are connected to the L-pole line layer and the N-pole line layer. The positive terminals of the rectified DC output terminals of the two rectifier bridges are connected to each other, and the negative terminals are connected to each other to complete the parallel output, which powers all the LED light-emitting components in the basic unit.

[0007] At least one resistor element is connected in series at the output terminal of the rectifier bridge on one side.

[0008] Between the L-type circuit layer and the N-type circuit layer, several first soldering positions for assembling LED light-emitting components are arranged at equal intervals along the length of the substrate. Adjacent first soldering positions are connected end to end through copper foil traces to form light-emitting branches. The light-emitting branches have a "Z" shaped structure, and adjacent light-emitting branches are arranged alternately vertically.

[0009] The L-polar circuit layer, N-polar circuit layer, and light-emitting branch lines are all square strip structures.

[0010] Compared with existing technologies, the driverless high-voltage light strip of this application uses one meter as an independent power supply unit and sets only one rectifier bridge at each end of the light strip, replacing the traditional structure of one bridge rectifier per cutting unit. This greatly reduces the number of rectifier bridges used, simplifies the production process of the light strip and reduces its production cost. The reduction in the number of rectifier bridges also reduces the dark areas caused by their obstruction, leaving the middle of the light strip unobstructed by bridge rectifiers, and making the light emission of the entire light strip more uniform. Attached Figure Description

[0011] Figure 1 : A schematic diagram of the basic unit structure of the light strip in this application;

[0012] Figure 2 Single-unit cutting structure diagram;

[0013] Figure 3 : The structural diagram of the beginning and end of the basic unit;

[0014] Figure 4 : Structural diagram of the tail end of the basic unit. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0016] Specific Implementation Example 1: Please refer to Figures 1 to 4 In this embodiment of the invention, a driverless high-voltage light strip is provided. Each light strip is powered independently by a basic unit of one meter. Each light strip has several sets of basic units of the same specifications. Each set of basic units includes a substrate 1, an AC power supply line, several sets of cutting units A, and two rectifier bridges 4. Each set of cutting units A has several LED light-emitting elements 8 of the same specifications. The two rectifier bridges 4 are respectively installed at the first and last cutting units A of a single set of basic units. The input terminals of the two rectifier bridges 4 are connected to the AC power supply line. The output terminals of the two rectifier bridges 4 are connected in parallel. The output circuit after parallel connection is uniformly rectified and powered on all LED light-emitting elements 8 on all cutting units A in the basic unit.

[0017] The AC power supply line includes an L-pole line layer 2 and an N-pole line layer 3 arranged along the length of the substrate 1. The L-pole line layer 2 and the N-pole line layer 3 are arranged in parallel at the top and bottom ends of the substrate 1. The input terminals of the two rectifier bridges 4 are connected to the L-pole line layer 2 and the N-pole line layer 3. The positive terminals of the rectified DC output terminals of the two rectifier bridges 4 are connected to each other, and the negative terminals are connected to each other to complete the parallel output, which powers all the LED light-emitting components 8 in the basic unit.

[0018] At least one resistor element is connected in series at the output terminal of the single-sided rectifier bridge 4. In this embodiment, two resistor elements are connected in series at the first end of the basic unit, namely the first resistor element 5 and the second resistor element 6. A resistor element is connected in series at the tail end of the basic unit, namely the third resistor element 7. All resistor elements are connected in series at the output terminal of the rectifier bridge 4 to play the role of current limiting and voltage regulation.

[0019] Between the L-type circuit layer 2 and the N-type circuit layer 3, several first soldering positions for assembling LED light-emitting components 8 are arranged at equal intervals along the length of the substrate 1. Each first soldering position is used to solder one LED light-emitting component. Adjacent first soldering positions are connected end to end through copper foil traces to form light-emitting branch lines 9. The light-emitting branch lines 9 have a "Z" shaped structure, and adjacent light-emitting branch lines 9 are arranged alternately vertically.

[0020] The L-polar circuit layer 2, N-polar circuit layer 3, and light-emitting branch line 9 are all square strip structures. This simple shape makes it easy to punch and arrange the circuits in a standardized manner.

[0021] Working principle: External AC power is sent to L-terminal circuit layer 2 and N-terminal circuit layer 3 through the input pad at the end of substrate 1, and is simultaneously delivered to the first and last rectifier bridge 4 to complete rectification; after the DC output of the two bridge rectifiers is connected in parallel and combined, the current is stabilized by the series current limiting resistor, and then sent to multiple sets of Z-shaped staggered light-emitting branches 9, so that all LED light-emitting components of cutting unit A emit light synchronously and uniformly.

[0022] In this embodiment, two rectifier bridges 4 are arranged at the beginning and end of the light strip with a basic unit of one meter, and there are no additional bridges in the middle to block the light, which greatly reduces the overall dark area. At the same time, the number of bridges used is greatly reduced, the production cost is significantly reduced, and the spacing of the cutting unit A and the cutting distance are completely consistent with the traditional light strip, without the need to change the existing production equipment process.

[0023] Compared with existing technologies, the driverless high-voltage light strip of this application uses one meter as an independent power supply unit and sets only one rectifier bridge at each end of the light strip, replacing the traditional structure of one bridge rectifier per cutting unit. This greatly reduces the number of rectifier bridges used, simplifies the production process of the light strip and reduces its production cost. The reduction in the number of rectifier bridges also reduces the dark areas caused by their obstruction, leaving the middle of the light strip unobstructed by bridge rectifiers, and making the light emission of the entire light strip more uniform.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A driverless high-voltage LED strip, characterized in that: Each light strip is powered independently by a one-meter unit. Each light strip has several sets of identical units. Each set of units includes a substrate, an AC power supply line, several sets of cutting units, and two rectifier bridges. Each set of cutting units has several identical LED light-emitting elements. The two rectifier bridges are installed at the first and last cutting units of each set of units. The input terminals of both rectifier bridges are connected to the AC power supply line. The output terminals of both rectifier bridges are connected in parallel. The output circuit after parallel connection provides rectified power to all LED light-emitting elements on all cutting units within the basic unit.

2. The driverless high-voltage LED strip according to claim 1, characterized in that: The AC power supply line includes an L-pole line layer and an N-pole line layer arranged along the length of the substrate. The L-pole line layer and the N-pole line layer are arranged in parallel at the top and bottom ends of the substrate. The input terminals of the two rectifier bridges are connected to the L-pole line layer and the N-pole line layer. The positive terminals of the rectified DC output terminals of the two rectifier bridges are connected to each other, and the negative terminals are connected to each other to complete the parallel output, which powers all the LED light-emitting components in the basic unit.

3. The driverless high-voltage LED strip according to claim 2, characterized in that: At least one resistor element is connected in series at the output terminal of the rectifier bridge on one side.

4. The driverless high-voltage LED strip according to claim 3, characterized in that: Between the L-type circuit layer and the N-type circuit layer, several first soldering positions for assembling LED light-emitting components are arranged at equal intervals along the length of the substrate. Adjacent first soldering positions are connected end to end through copper foil traces to form light-emitting branches. The light-emitting branches have a "Z" shaped structure, and adjacent light-emitting branches are arranged alternately vertically.

5. The driverless high-voltage LED strip according to claim 4, characterized in that: The L-polar circuit layer, N-polar circuit layer, and light-emitting branch lines are all square strip structures.

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