High-voltage LED lamp strip safe and stable to use

Abstract

The utility model discloses a high voltage LED lamp band safe and stable to use, which comprises a flexible circuit board, the flexible circuit board is provided with a plurality of circuit board units which are connected in parallel, the circuit board units are provided with rectifier bridges, constant current ICs, a plurality of LED lamp bead groups and a plurality of resistors which are connected in series, each LED lamp bead group comprises two LED lamp beads which are connected in parallel, and the two LED lamp beads are connected in parallel. The flexible 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 sequentially arranged from top to bottom. An external driver is not needed for use, internal wiring is simple, manufacturing cost is low, the bridge rectifier stably controls the voltage of the high-voltage LED lamp strip, the high-voltage LED lamp strip emits light stably, the constant-current IC stably controls the current of the high-voltage LED lamp strip, the high-voltage LED lamp strip emits light evenly and is high in luminance, when a certain LED lamp bead is damaged, the whole lamp strip unit still emits light, and the whole LED lamp strip unit is not damaged. Installation and use are convenient, and consumer experience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of LED strip lights, and particularly relates to a high-voltage LED strip light with safe and stable use. Background Art

[0002] An LED strip light refers to assembling LEDs on a strip-shaped FPC (flexible printed circuit board) or a rigid PCB board, and it gets its name because its product shape is like a strip. With the improvement of people's living standards, LED strip lights have gradually become a commonly used lighting fixture for people. LED strip lights are generally divided into high-voltage LED strip lights and low-voltage LED strip lights. However, existing high-voltage LED strip lights generally need to be externally connected to a driver to be used, and some high-voltage LED strip lights also come with a step-down circuit. However, the structures of these high-voltage LED strip lights are relatively complex, with high costs. The strip light unit is generally composed of multiple LED lamp beads connected in series. When a certain lamp bead is damaged, the entire strip light unit does not light up, resulting in dark areas, which brings inconvenience to users. At the same time, the current is unstable and the brightness is not high enough, and the consumer experience is poor. Therefore, in order to avoid the disadvantages existing in the prior art, it is necessary to make improvements to the prior art. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the defects and deficiencies in the prior art, and provide a high-voltage LED strip light with safe and stable use.

[0004] The utility model is realized through the following technical solutions:

[0005] A high-voltage LED strip light with safe and stable use includes a flexible printed circuit board. The flexible printed circuit board is provided with a number of circuit board units connected in parallel. On the circuit board unit, a rectifier bridge, a constant current IC, a number of LED lamp bead groups and a number of resistors are installed in series connection. Each LED lamp bead group includes two LED lamp beads connected in parallel. The flexible printed circuit board includes 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.

[0006] Further, the front insulating layer is provided with a power positive pad hole, a power negative pad hole, a rectifier bridge pad hole, a constant current IC pad hole, a resistor pad hole and an LED lamp bead pad hole.

[0007] Further, the front circuit layer is provided with a positive connection copper foil, a negative connection copper foil, a first connection copper foil for connecting the rectifier bridge, a second connection copper foil for connecting the constant current IC, a third connection copper foil and a fourth connection copper foil for connecting the LED lamp beads, a fifth connection copper foil and a sixth connection copper foil for connecting the resistors.

[0008] Further, the back circuit layer is provided with a conductive connection copper foil.

[0009] Further, the intermediate insulating layer is provided with a first connection hole connecting the first connection copper foil and the conductive connection copper foil, and the intermediate insulating layer is respectively provided with a second connection hole connecting the third connection copper foil and the conductive connection copper foil.

[0010] Further, the rectifier bridge and the constant current IC are arranged at the start end or the end end of the circuit board unit.

[0011] Further, the outer side of the flexible circuit board is coated with a transparent insulating shell.

[0012] Further, the LED lamp beads are 2835 LED surface mount lamp beads.

[0013] Further, the model of the rectifier bridge is TL10F.

[0014] Further, the constant current IC is a 2835CRD constant current IC.

[0015] Compared with the prior art, the utility model has several circuit board units connected in parallel on the flexible circuit board. A rectifier bridge, a constant current IC, several LED lamp bead groups and several resistors connected in series are installed on the circuit board unit. The LED lamp bead group includes two LED lamp beads connected in parallel, so that the high-voltage LED light strip does not need an external driver, the internal wiring is simple, and the manufacturing cost is low. The bridge rectifier stably controls the voltage of the high-voltage LED light strip, the high-voltage LED light strip emits light stably, the constant current IC stably controls the current of the high-voltage LED light strip, the high-voltage LED light strip emits light evenly, and the light-emitting brightness is high. When a certain LED lamp bead is damaged, the whole light strip unit is still on, which is convenient for installation and use, and the consumer experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model 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 following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of a high-voltage LED light strip with safe and stable use of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of the front insulating layer of the present utility model;

[0019] Figure 3 It is a schematic structural diagram of the front circuit layer of the present utility model;

[0020] Figure 4 It is a schematic structural diagram of the intermediate insulating layer of the present utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the back circuit layer of the present utility model.

[0022] In the figure: 1 - circuit board unit; 2 - rectifier bridge; 3 - constant current IC; 4 - LED lamp bead group; 5 - resistor; 6 - LED lamp bead; 7 - power positive pad hole; 8 - power negative pad hole; 9 - rectifier bridge pad hole; 10 - constant current IC pad hole; 11 - resistor pad hole; 12 - LED lamp bead pad hole; 13 - positive connection copper foil; 14 - negative connection copper foil; 15 - first connection copper foil; 16 - second connection copper foil; 17 - third connection copper foil; 18 - fourth connection copper foil; 19 - fifth connection copper foil; 20 - sixth connection copper foil; 21 - conductive connection copper foil; 22 - first connection hole; 23 - second connection hole. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] As Figures 1 to 5 shown, a high-voltage LED light strip with safe and stable use of the present utility model includes a flexible circuit board. The flexible circuit board is provided with a plurality of circuit board units 1 connected in parallel. A rectifier bridge 2, a constant current IC 3, a plurality of LED lamp bead groups 4 and a plurality of resistors 5 connected in series are installed on the circuit board unit 1. The LED lamp bead group 4 includes two LED lamp beads 6 connected in parallel. The flexible circuit board includes a front insulating layer, a front circuit layer, a middle insulating layer, a back circuit layer and a back insulating layer arranged in sequence from top to bottom. By providing a plurality of circuit board units 1 connected in parallel on the flexible circuit board, a rectifier bridge 2, a constant current IC 3, a plurality of LED lamp bead groups 4 and a plurality of resistors 5 connected in series are installed on the circuit board unit 1, and the LED lamp bead group 4 includes two LED lamp beads 6 connected in parallel, the high-voltage LED light strip does not need to be externally connected to a driver for use, the internal wiring is simple, the manufacturing cost is low, the bridge rectifier stably controls the voltage of the high-voltage LED light strip, the high-voltage LED light strip emits light stably, the constant current IC stably controls the current of the high-voltage LED light strip, the high-voltage LED light strip emits light evenly, the luminous brightness is high. When a certain LED lamp bead 6 is damaged, the entire light strip unit still lights up, and the installation and use are convenient, and the consumer experience is good.

[0025] The front insulating layer is provided with a power supply positive pad hole 7, a power supply negative pad hole 8, a rectifier bridge pad hole 9, a constant current IC pad hole 10, a resistor pad hole 11 and an LED lamp bead pad hole 12, which facilitate the positioning and soldering of the power cord, the rectifier bridge 2, the constant current IC 3, the resistor 5 and the LED lamp bead 6.

[0026] The front circuit layer is provided with a positive connection copper foil 13, a negative connection copper foil 14, a first connection copper foil 15 for connecting the rectifier bridge 2, a second connection copper foil 16 for connecting the constant current IC 3, a third connection copper foil 17 and a fourth connection copper foil 18 for connecting the LED lamp bead 6, and a fifth connection copper foil 19 and a sixth connection copper foil 20 for connecting the resistor 5, which is beneficial to the conductive connection of the rectifier bridge 2, the constant current IC 3, the LED lamp bead 6 and the resistor 5.

[0027] The back circuit layer is provided with a conductive connection copper foil 21, which facilitates the conductive connection of the output negative pole of the rectifier bridge 2.

[0028] The middle insulating layer is provided with a first connection hole 22 connecting the first connection copper foil 15 and the conductive connection copper foil 21, and the middle insulating layer is respectively provided with a second connection hole 23 connecting the third connection copper foil 17 and the conductive connection copper foil 21, which facilitates the power supply connection of the output negative pole of the rectifier bridge 2.

[0029] The rectifier bridge 2 and the constant current IC 3 are arranged at the beginning or the end of the circuit board unit 1 to avoid affecting the overall light emission of the high-voltage LED light strip.

[0030] The outer side of the flexible circuit board is coated with a transparent insulating shell to protect the high-voltage LED light strip and improve the use safety.

[0031] As a specific implementation manner, the LED lamp bead 6 is a 2835 LED patch lamp bead, which has low cost, small volume and saves production cost.

[0032] As a specific implementation manner, the model of the rectifier bridge 2 is TL10F, which has low cost, small volume and saves production cost.

[0033] As a specific implementation manner, the constant current IC 3 is a 2835CRD constant current IC, which has low cost, small volume and saves production cost.

[0034] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-voltage LED strip with safe and stable use, characterized in that: It includes a flexible printed circuit board, and several circuit board units are connected in parallel on the flexible printed circuit board. A rectifier bridge, a constant current IC, several LED lamp bead groups and several resistors are installed on the circuit board unit in series connection. Each LED lamp bead group includes two LED lamp beads connected in parallel. The flexible printed circuit board includes a front insulating layer, a front circuit layer, an intermediate insulating layer, a back circuit layer and a back insulating layer which are arranged in sequence from top to bottom.

2. The high-voltage LED light strip with safe and stable use according to claim 1, wherein: The front insulating layer is provided with a power supply positive pad hole, a power supply negative pad hole, a rectifier bridge pad hole, a constant current IC pad hole, a resistor pad hole and an LED lamp bead pad hole.

3. The high-voltage LED light strip with safe and stable use according to claim 1, wherein: The front circuit layer is provided with a positive connection copper foil, a negative connection copper foil, a first connection copper foil for connecting the rectifier bridge, a second connection copper foil for connecting the constant current IC, a third connection copper foil and a fourth connection copper foil for connecting the LED lamp beads, and a fifth connection copper foil and a sixth connection copper foil for connecting the resistors.

4. The high-voltage LED light strip with safe and stable use according to claim 3, characterized in that: The back circuit layer is provided with a conductive connection copper foil.

5. The high-voltage LED light strip with safe and stable use according to claim 4, characterized in that: The intermediate insulating layer is provided with a first connection hole connecting the first connection copper foil and the conductive connection copper foil, and the intermediate insulating layer is respectively provided with a second connection hole connecting the third connection copper foil and the conductive connection copper foil.

6. The high-voltage LED light strip with safe and stable use according to claim 1, wherein: The rectifier bridge and the constant current IC are arranged at the start end or the end of the circuit board unit.

7. The high-voltage LED light strip with safe and stable use according to claim 1, characterized in that: The outer side of the flexible printed circuit board is coated with a transparent insulating shell.

8. The high-voltage LED strip with safe and stable use according to claim 1, wherein: The LED lamp beads are 2835 LED surface mount lamp beads.

9. The high-voltage LED light strip with safe and stable use according to claim 1, wherein: The model of the rectifier bridge is TL10F.

10. The high-voltage LED light strip with safe and stable use according to claim 1, characterized in that: The constant current IC is a 2835CRD constant current IC.

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