Constant current IC light strip

Abstract

The utility model discloses a constant current IC lamp area, including the flexible circuit board, the flexible circuit board includes a plurality of spliced circuit board unit, be equipped with the shear mark between the circuit board unit, install the control element group and LED lamp pearl group of series connection on the flexible circuit board, the control element group includes a plurality of parallel connection's constant current IC, the LED lamp pearl group includes a plurality of all parallel connection's LED lamp pearl, the utility model discloses simple structure, and the production cost is low, and the lamp area unit is short, and the convenient shear can realize one lamp one shear, reduces the waste, and constant current IC carries out stable processing to the voltage current of input, and the control is stable, and the input voltage range is wide, and the LED lamp pearl luminous intensity is consistent, and the LED lamp pearl luminous intensity is high, and the normal luminous of other LED lamp pearl will not be affected when a certain LED lamp pearl is damaged, and the installation and use are convenient, and the constant current IC lamp area head and tail luminance is consistent, does not need to make up electricity and uses, and the decorative illumination effect is good, and the user experience is good.

Description

Technical Field

[0001] This utility model relates to the field of LED strip technology, specifically to a constant current IC LED strip. Background Technology

[0002] With the improvement of people's living standards, constant current IC light strips have gradually become a commonly used type of lighting fixture. Constant current IC light strips can be cut at the connection points of the light strip units, making installation and use convenient. Two-wire five-color or two-wire dual-color constant current IC light strips are a type of light strip, frequently used for decorative ambient lighting and main lighting. However, existing constant current IC light strips have a relatively complex structure, high manufacturing cost, and long light strip units that are inconvenient to cut. Damage to one LED can affect the normal operation of other LEDs, making installation and use inconvenient. Inconsistent brightness at the beginning and end requires additional power, resulting in poor decorative lighting effects and a poor user experience. Therefore, to avoid the shortcomings of existing technology, it is necessary to improve it. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and provide a constant current IC light strip that is low in manufacturing cost and easy to install and use.

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

[0005] A constant current IC light strip includes a flexible circuit board, which comprises several spliced ​​circuit board units. Cutting marks are provided between the circuit board units. A control element group and an LED bead group connected in series are mounted on the flexible circuit board. The control element group includes several constant current ICs connected in parallel. The LED bead group includes several LED beads connected in full parallel. The rated voltage of the LED beads is 9V or 18V.

[0006] Furthermore, the flexible circuit board includes a front insulating layer, a front circuit layer, an intermediate insulating layer, a bottom copper circuit layer, and a back insulating layer arranged sequentially from top to bottom. The width of the flexible circuit board is 5mm to 15mm, the length of the flexible circuit board is 5m to 30m, the thickness of the front circuit layer is 15um to 35um, and the thickness of the bottom copper circuit layer is 15um to 150um.

[0007] Furthermore, the front insulating layer is provided with a power positive pad hole, a middle pad hole, a power negative pad hole, a constant current IC pad hole, and an LED lamp bead pad hole.

[0008] Furthermore, the front circuit layer is provided with a positive electrode connecting copper foil, an intermediate connecting copper foil, and a negative electrode connecting copper foil.

[0009] Furthermore, the bottom copper circuit layer is provided with positive conductive copper foil and negative conductive copper foil.

[0010] Furthermore, the intermediate insulating layer is provided with a first connecting hole connecting the positive electrode connecting copper foil and the positive electrode conductive copper foil, and the intermediate insulating layer is provided with a second connecting hole connecting the negative electrode connecting copper foil and the negative electrode conductive copper foil.

[0011] Furthermore, the constant current IC is a CRD constant current IC or a CRD stepless constant current IC, the current of the constant current IC is 15mA to 60mA, the number of constant current ICs per meter of the constant current IC light strip is 2 to 48, and the LED beads are stepless bicolor LED beads.

[0012] Furthermore, the circuit board unit has one or two LED beads, and the constant current IC light strip has 120 to 240 LED beads per meter.

[0013] Furthermore, the rated voltage of the constant current IC light strip is 12V to 24V, the length of the constant current IC light strip is 5 meters or 15 meters, the total power of the constant current IC light strip is 18W to 120W, and the power per meter of the constant current IC light strip is 3W to 12W.

[0014] Furthermore, the rated voltage of the constant current IC light strip is 24V, the length of the constant current IC light strip is 10 meters or 30 meters, the total power of the constant current IC light strip is 50W to 200W, and the power per meter of the constant current IC light strip is 4W to 12W.

[0015] Compared to existing technologies, this utility model features a series-connected control element group and LED bead group mounted on a flexible circuit board. The control element group includes several constant current ICs connected in parallel, and the LED bead group includes several LED beads connected in full parallel. This simplifies the structure of the constant current IC light strip, reduces manufacturing costs, shortens the light strip unit, facilitates cutting, and allows for one-lamp-one-cut operation, reducing waste. The constant current IC stabilizes the input voltage and current, ensuring stable control and a wide input voltage range. The LED beads emit consistent brightness from beginning to end, resulting in high brightness. The failure of one LED bead will not affect the normal operation of other LED beads. Installation and use are convenient. The constant current IC light strip has consistent brightness from beginning to end, eliminating the need for additional power. It provides good performance for both ambient lighting and main lighting, resulting in a better user experience. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the structure of the constant current IC LED strip circuit board unit of this utility model when one LED bead is provided;

[0018] Figure 2 A schematic diagram of the front insulating layer of the constant current IC LED strip circuit board unit of this utility model when an LED bead is provided;

[0019] Figure 3 This is a schematic diagram of the front circuit layer of the constant current IC LED strip circuit board unit of this utility model when an LED bead is provided;

[0020] Figure 4 This is a schematic diagram of the structure of the intermediate insulating layer when an LED bead is provided in the constant current IC LED strip circuit board unit of this utility model;

[0021] Figure 5 This is a schematic diagram of the bottom copper circuit layer structure of the constant current IC LED strip circuit board unit of this utility model when an LED bead is provided;

[0022] Figure 6 This is a schematic diagram of the structure of the constant current IC LED strip circuit board unit of this utility model when it has two LED beads;

[0023] Figure 7 This is a schematic diagram of the front insulating layer of the constant current IC LED strip circuit board unit of this utility model when it has two LED beads;

[0024] Figure 8 This is a schematic diagram of the front circuit layer of the constant current IC LED strip circuit board unit of this utility model when it has two LED beads;

[0025] Figure 9 This is a schematic diagram of the structure of the middle insulating layer when the constant current IC light strip circuit board unit of this utility model has two LED beads;

[0026] Figure 10 This is a schematic diagram of the bottom copper circuit layer of the constant current IC LED strip circuit board unit of this utility model, which has two LED beads.

[0027] In the diagram: 1-Circuit board unit; 2-Cut mark; 3-Constant current IC; 4-LED bead; 5-Positive power supply pad hole; 6-Intermediate pad hole; 7-Negative power supply pad hole; 8-Constant current IC pad hole; 9-LED bead pad hole; 10-Positive connection copper foil; 11-Intermediate connection copper foil; 12-Negative connection copper foil; 13-Positive conductive copper foil; 14-Negative conductive copper foil; 15-First connection hole; 16-Second connection hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1 to 10 This utility model discloses a constant current IC light strip, comprising a flexible circuit board, which includes several spliced ​​circuit board units 1. Cutting marks 2 are provided between the circuit board units 1. A series-connected control element group and an LED bead group are mounted on the flexible circuit board. The control element group includes several parallel-connected constant current ICs 3, and the LED bead group includes several fully parallel-connected LED beads 4. The rated voltage of the LED beads 4 is 9V or 18V. This utility model's constant current IC light strip has a simple structure, low manufacturing cost, short light strip units for easy cutting, allowing for one-lamp-one-cut operation, reducing waste. The constant current IC 3 stabilizes the input voltage and current, providing stable control and a wide input voltage range. The LED beads 4 emit consistent brightness from beginning to end, have high brightness, and the failure of one LED bead 4 will not affect the normal operation of other LED beads 4. Installation and use are convenient. The constant current IC light strip has consistent brightness from beginning to end, eliminating the need for additional power. It provides good performance for both ambient lighting and main lighting, resulting in a good user experience.

[0030] In practice, the flexible circuit board includes a front insulating layer, a front circuit layer, an intermediate insulating layer, a bottom copper circuit layer, and a back insulating layer arranged sequentially from top to bottom. This five-layer circuit structure facilitates wiring, simplifies manufacturing, and provides good safety. Specifically, the width of the flexible circuit board is 5mm to 15mm, the length is 5m to 30m, the thickness of the front circuit layer is 15um to 35um, and the thickness of the bottom copper circuit layer is 15um to 150um.

[0031] The front insulating layer has power positive pad hole 5, middle pad hole 6, power negative pad hole 7, constant current IC pad hole 8 and LED lamp bead pad hole 9, which facilitates the connection of power cord and the positioning and soldering of constant current IC 3 and LED lamp bead 4.

[0032] The front circuit layer has a positive terminal connecting copper foil 10, an intermediate connecting copper foil 11 and a negative terminal connecting copper foil 12, which facilitates the soldering of the constant current IC 3 and the LED lamp bead 4.

[0033] The bottom copper circuit layer has a positive conductive copper foil 13 and a negative conductive copper foil 14 to facilitate the power supply connection of the constant current IC LED strip.

[0034] The intermediate insulating layer has a first connection hole 15 for connecting the positive electrode connecting copper foil 10 and the positive electrode conductive copper foil 13, and a second connection hole 16 for connecting the negative electrode connecting copper foil 12 and the negative electrode conductive copper foil 14, which facilitates the power supply connection of the constant current IC 3 and the LED lamp bead 4.

[0035] In practice, the constant current IC 3 is a CRD constant current IC or a CRD stepless constant current IC, which has stable current, low power, small size, low price, and is easy to use, extending the life of the constant current IC light strip. In practice, the current of the constant current IC 3 is 15mA to 60mA, and the number of constant current IC 3 per meter of constant current IC light strip is 2 to 48. The LED beads 4 are stepless dual-color LED beads, which have long working life, low power consumption, are easy to dim and color adjust, have high controllability, and have good performance.

[0036] In practice, the circuit board unit has one or two LED beads 4, the rated voltage of the LED beads 4 is 9V or 18V, and the number of LED beads 4 is 120 to 240.

[0037] Circuit board unit 1 is equipped with one LED bead 4, realizing one LED per cutter, which is convenient for installation and use.

[0038] Circuit board unit 1 is equipped with two LED beads 4. The constant current IC light strip emits light in a concentrated and uniform manner, resulting in good performance.

[0039] As a specific implementation method, the rated voltage of the constant current IC light strip is 12V to 24V, the length of the constant current IC light strip is 5 meters or 15 meters, the total power of the constant current IC light strip is 18W to 120W, and the power per meter of the constant current IC light strip is 3W to 12W.

[0040] As another specific implementation, the rated voltage of the constant current IC light strip is 24V, the length of the constant current IC light strip is 10 meters or 30 meters, the total power of the constant current IC light strip is 50W to 200W, and the power per meter of the constant current IC light strip is 4W to 12W.

[0041] Using 120 to 240 9V LED beads to make a 12V to 24V constant current IC light strip, the 12V to 24V wide voltage range can be used to achieve the same brightness at the beginning and end.

[0042] Using 120 to 240 18V LED beads to make a 24V constant current IC light strip, the brightness can be the same from beginning to end for 10 to 30 meters.

[0043] Constant current IC LED strips (12V-24V bare boards) can be manufactured into finished silicone extruded LED strips, PVC extruded LED strips, silicone tubing LED strips, and PVC tubing LED strips. Each LED strip requires only one cutter, making them convenient to use. All of these are included within the protection scope of this utility model.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A constant current IC LED strip, characterized in that: The device includes a flexible circuit board, which comprises several spliced ​​circuit board units. Cutting marks are provided between the circuit board units. A series-connected control element group and an LED lamp bead group are mounted on the flexible circuit board. The control element group includes several constant current ICs connected in parallel. The LED lamp bead group includes several LED lamp beads connected in full parallel. The rated voltage of the LED lamp beads is 9V or 18V.

2. The constant current IC LED strip according to claim 1, characterized in that: The flexible circuit board includes, from top to bottom, a front insulating layer, a front circuit layer, an intermediate insulating layer, a bottom copper circuit layer, and a back insulating layer. The width of the flexible circuit board is 5mm to 15mm, the length of the flexible circuit board is 5m to 30m, the thickness of the front circuit layer is 15um to 35um, and the thickness of the bottom copper circuit layer is 15um to 150um.

3. The constant current IC LED strip according to claim 2, characterized in that: The front insulating layer is provided with a power positive pad hole, a middle pad hole, a power negative pad hole, a constant current IC pad hole, and an LED lamp bead pad hole.

4. The constant current IC LED strip according to claim 2, characterized in that: The front circuit layer is provided with positive electrode connecting copper foil, intermediate connecting copper foil and negative electrode connecting copper foil.

5. The constant current IC LED strip according to claim 4, characterized in that: The bottom copper circuit layer is provided with positive conductive copper foil and negative conductive copper foil.

6. The constant current IC LED strip according to claim 5, characterized in that: The intermediate insulating layer is provided with a first connecting hole connecting the positive electrode connecting copper foil and the positive electrode conductive copper foil, and the intermediate insulating layer is provided with a second connecting hole connecting the negative electrode connecting copper foil and the negative electrode conductive copper foil.

7. The constant current IC LED strip according to claim 1, characterized in that: The constant current IC is a CRD constant current IC or a CRD stepless constant current IC. The current of the constant current IC is 15mA to 60mA. The number of constant current ICs per meter of the constant current IC light strip is 2 to 48. The LED beads are stepless bicolor LED beads.

8. The constant current IC LED strip according to claim 1, characterized in that: The circuit board unit has one or two LED beads, and the constant current IC light strip has 120 to 240 LED beads per meter.

9. The constant current IC LED strip according to claim 1, characterized in that: The rated voltage of the constant current IC light strip is 12V to 24V, the length of the constant current IC light strip is 5 meters or 15 meters, the total power of the constant current IC light strip is 18W to 120W, and the power per meter of the constant current IC light strip is 3W to 12W.

10. The constant current IC LED strip according to claim 1, characterized in that: The rated voltage of the constant current IC light strip is 24V, the length of the constant current IC light strip is 10 meters or 30 meters, the total power of the constant current IC light strip is 50W to 200W, and the power per meter of the constant current IC light strip is 4W to 12W.

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