Dimming LED lamp strip
By setting the input positive electrode and multiple input negative electrodes on the LED light strip circuit board and adjusting the current using parallel resistors, the problem of unadjustable brightness of the existing LED light strip is solved, and flexible adjustment of the light strip power and brightness is achieved, reducing the cost of use and improving the use effect.
Patent Information
- Application Number
- CN202510524472.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2025-06-10
AI Technical Summary
The light brightness of existing LED light strips cannot be adjusted, resulting in the need to install light strips of different powers in different time periods and scenarios, which increases the cost and complexity of consumers.
Adjusting the power and brightness of the lamp belt is achieved by setting the input positive electrode and multiple input negative electrodes at the beginning of the lamp belt circuit board, and adjusting the current through the resistor connected in parallel.
It realizes flexible adjustment of light strip power and brightness, and is suitable for lighting needs in different time periods and scenarios, reducing consumer usage costs and improving usage effects.
Smart Images
Figure CN120120529A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of light strip, and particularly to a dimmable LED light strip. Background Art
[0002] With the progress of technology and the improvement of people's living standards, LED light strips have become lighting tools in people's lives. However, the light brightness of existing LED light strips cannot be adjusted. For home lighting, people generally need to use lights with different intensities at different time periods. At the same time, light strips with different powers need to be installed for different scenarios, and the light strips are not universal, increasing the usage cost of consumers and resulting in poor usage effects for consumers. Therefore, in order to avoid the disadvantages in the prior art, it is necessary to improve the prior art. Summary of the Invention
[0003] The purpose of the present invention is to overcome the disadvantages and deficiencies in the prior art and provide a dimmable LED light strip with a simple structure.
[0004] The present invention is achieved by the following technical solutions:
[0005] A dimmable LED light strip includes a light strip circuit board. At the starting end of the light strip circuit board, there are several resistors connected in parallel. The light strip circuit board includes several light strip units connected in parallel. Each light strip unit includes several lamp beads connected in series. The resistors are connected in series with the lamp beads. At the starting end of the light strip circuit board, there is an input positive electrode. The positive electrode of the lamp bead group is connected to the input positive electrode. At the starting end of the light strip circuit board, there are several input negative electrodes. The negative electrode of the lamp bead group is connected to the input negative electrode of the light strip circuit board through the resistor.
[0006] Further, there are 4 input negative electrodes at the starting end of the light strip circuit board.
[0007] Further, several of the resistors are arranged horizontally in a row.
[0008] Further, several of the lamp beads are arranged vertically in a column.
[0009] Further, a negative electrode connection circuit is provided on the back surface of the light strip circuit.
[0010] Further, the lamp beads are surface-mounted LED lamp beads.
[0011] Further, the resistors are surface-mounted resistors.
[0012] Further, the light strip circuit board includes a front insulating layer, a front circuit layer, an intermediate insulating layer, a back circuit layer, and a back insulating layer arranged in sequence from top to bottom.
[0013] Further, the strip circuit board includes a front insulating layer, a circuit layer, and a back insulating layer which are arranged in sequence from top to bottom.
[0014] Further, a positive connection pad and a negative connection pad are provided at the end of the strip unit.
[0015] Compared with the prior art, in the present invention, an input positive electrode is provided at the starting end of the strip circuit board, the positive electrode of the lamp bead group is connected to the input positive electrode, several input negative electrodes are provided at the starting end of the strip circuit board, and the negative electrode of the lamp bead group is connected to the input negative electrode of the strip circuit board through a resistor. By connecting different input negative electrodes individually or in combination, since the resistance values after different resistors are connected in parallel are different, the current directly passes through the positive electrode, and the single wattage of the negative electrode is adjusted through the resistor, or the multiple wattages of the negative electrode are adjusted through the combination of multiple circuits. The power of the strip is easy to adjust, and the light brightness is easy to adjust. It is suitable for home lighting. People can connect different input negative electrodes at different time periods to obtain different intensities of light for lighting. At the same time, only different input negative electrodes need to be connected for different scenarios to obtain strip lighting with different powers. The strip is universal, reducing the use cost of consumers, and the use effect of consumers is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0017] Figure 1 It is a schematic structural diagram of the dimmable LED strip of the present invention;
[0018] Figure 2 It is a circuit control schematic diagram of the dimmable LED strip of the present invention.
[0019] In the figure: 1 - strip circuit board; 2 - resistor; 3 - strip unit; 4 - lamp bead; 5 - input positive electrode; 6 - input negative electrode; 7 - positive connection pad; 8 - negative connection pad. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0021] Such as Figure 1 And Figure 2A dimmable LED light strip according to the present invention is shown, including a light strip circuit board 1. At the starting end of the light strip circuit board 1, there are several resistors 2 connected in parallel. The light strip circuit board 1 includes several light strip units 3 connected in parallel. Each light strip unit 3 includes several lamp beads 4 connected in series. The resistor 2 is connected in series with the lamp bead 4. At the starting end of the light strip circuit board 1, there is an input positive electrode 5. The positive electrode of the lamp bead 4 is connected to the input positive electrode 5. At the starting end of the light strip circuit board 1, there are several input negative electrodes 6. The negative electrode of the lamp bead 3 is connected to the input negative electrode 6 of the light strip circuit board 1 through the resistor 2. When in use, by connecting different input negative electrodes 6 separately or in combination, due to the different resistance values after different resistors 2 are connected in parallel, the current directly passes through the positive electrode, and the power of the negative electrode per unit is adjusted through the resistor, or the power of the negative electrode in multiple ways is adjusted through the combination of multiple circuits. The power of the light strip is easy to adjust, and the light brightness is easy to adjust. It is suitable for home lighting. People can connect different input negative electrodes 6 at different time periods to obtain different intensities of light for lighting. At the same time, in different scenarios, only by connecting different input negative electrodes 6, different power light strip illuminations can be obtained. The light strip is universal, reducing the usage cost of consumers, and the consumers have a good usage effect.
[0022] The resistor combination can change the current and can be adjusted to 13 powers from 2W to 14W.
[0023] As a specific implementation manner, there are 4 input negative electrodes 6 at the starting end of the light strip circuit board 1. The 4 input negative electrodes 6 can be combined into 15 different power and different brightness light strip illuminations, with strong universality, reducing the usage cost of consumers, and the consumers have a good usage effect.
[0024] Several resistors 3 are arranged horizontally in a row, which is convenient for the layout and electrical connection control of the input negative electrode 6.
[0025] Several lamp beads 4 are arranged vertically in a column, making the illumination of the dimmable LED light strip more uniform and the lighting effect better.
[0026] There is a negative electrode connection circuit on the back of the light strip circuit 1, which is convenient for connecting the negative electrodes of different light strip units 3.
[0027] As a specific implementation manner, the lamp bead 4 is a surface-mounted LED lamp bead, with low cost and convenient installation.
[0028] As a specific implementation manner, the resistor 2 is a surface-mounted resistor, with low cost and convenient installation.
[0029] As a specific implementation manner, the light strip circuit board includes a front insulating layer, a front circuit layer, an intermediate insulating layer, a back circuit layer, and a back insulating layer arranged in sequence from top to bottom, which is a five-layer structure light strip circuit board and is suitable for LED light strips with relatively complex circuit structures.
[0030] As another specific embodiment, the strip circuit board includes a front insulating layer, a circuit layer, and a back insulating layer arranged in sequence from top to bottom, which is a strip circuit board with a three-layer structure and is suitable for use in LED strips with relatively simple circuit structures.
[0031] The end of the strip unit 3 is provided with a positive connection pad 7 and a negative connection pad 8, which is convenient for supplementary soldering of the strip unit 3.
[0032] The dimmable LED strip can be connected to a DIP switch for use. By connecting different input negatives 6, different power controls can be achieved.
[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
Claims
1. A dimming LED light strip, characterized in that: It includes a light strip circuit board, a plurality of resistors connected in parallel are provided at the starting end of the light strip circuit board, the light strip circuit board includes a plurality of light strip units connected in parallel, the light strip unit includes a plurality of lamp beads connected in series, the resistors are connected in series with the lamp beads, an input positive pole is provided at the starting end of the light strip circuit board, the positive pole of the lamp bead group is connected to the input positive pole, a plurality of input negative poles are provided at the starting end of the light strip circuit board, the negative pole of the lamp bead group is connected to the input negative pole of the light strip circuit board through the resistors.
2. The dimming LED light strip according to claim 1, characterized in that: The beginning of the light strip circuit board is provided with four input negative electrodes.
3. The dimming LED light strip according to claim 1, characterized in that: A plurality of the resistors are arranged in a row transversely.
4. The dimming LED light strip according to claim 1, characterized in that: A plurality of the lamp beads are arranged in a row vertically.
5. The dimming LED light strip according to claim 1, characterized in that: A negative electrode connection circuit is provided on the back side of the light strip circuit.
6. The dimming LED light strip according to claim 1, characterized in that: The lamp beads are SMD LED lamp beads.
7. The dimming LED light strip according to claim 1, characterized in that: The resistor is a chip resistor.
8. The dimming LED light strip according to claim 1, characterized in that: The light strip circuit board comprises a front insulating layer, a front circuit layer, a middle insulating layer, a back circuit layer and a back insulating layer which are arranged in sequence from top to bottom.
9. The dimming LED light strip according to claim 1, characterized in that: The light strip circuit board comprises a front insulating layer, a circuit layer and a back insulating layer which are arranged in sequence from top to bottom.
10. The dimming LED light strip according to claim 1, characterized in that: The ends of the light strip unit are provided with a positive electrode connection pad and a negative electrode connection pad.