LED lamp strip capable of being cut at will

Abstract

The utility model discloses an LED lamp strip capable of being cut at will, which comprises a flexible lamp strip circuit board, the lamp strip circuit board is provided with an LED lamp bead group and a resistor group which are connected in series, the LED lamp bead group comprises a plurality of LED lamp beads which are connected in parallel, the resistor group comprises a plurality of resistors which are connected in parallel, and the LED lamp bead group and the resistor group are connected in series. The lamp strip circuit board is respectively provided with a first main line, a second main line and a third main line, the lamp 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 sequentially arranged from top to bottom, and the resistor is a chip resistor. The LED lamp strip is simple in structure and capable of being cut off at will, normal light emitting of the whole LED lamp strip cannot be affected when a certain LED lamp bead is damaged, light emitting is stable, installation and use are convenient, overall lighting of the LED lamp strip cannot be affected due to unsoldering of the LED lamp beads when the LED lamp strip is bent, cross lighting can be achieved at will, the LED lamp beads cannot be burnt out due to short circuit, later maintenance is convenient, and use experience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of LED strip lights, and particularly relates to an LED strip light that can be arbitrarily cut. Background Art

[0002] An LED strip light refers to an LED assembled 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 progress of technology and the improvement of people's living standards, LED strip lights have become commonly used lighting appliances in people's daily lives. The application of LED strip lights is very extensive and can be used for lighting and decoration. However, the existing LED strip lights generally consist of multiple LED beads and multiple resistors connected in series. When a certain bead is damaged, the entire strip light does not light up, which brings inconvenience to users. When bending, it is easy to affect the overall lighting of the LED strip light due to the desoldering of the LED beads. It cannot be arbitrarily cross-lit, and the LED beads are easily burned out due to short circuit, and the later maintenance is inconvenient, and the use experience is not good. Therefore, in order to avoid the disadvantages existing in the prior art, it is necessary to improve the prior art. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an LED strip light that can be arbitrarily cut with a simple structure.

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

[0005] An LED strip light that can be arbitrarily cut includes a flexible strip light circuit board. The strip light circuit board is provided with a series-connected LED bead group and resistor group. The LED bead group includes a plurality of LED beads connected in parallel, and the resistor group includes a plurality of resistors connected in parallel. The strip light circuit board is respectively provided with a first main line, a second main line, and a third main line. The first main line is used for the parallel connection of one end of the resistor, the second main line is used for the parallel connection of the other end of the resistor, the second main line is used for the parallel connection of one end of the LED bead, and the third main line is used for the parallel connection of the other end of the LED bead. The strip light 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.

[0006] Further, the front insulating layer is provided with a power supply positive pad hole, a power supply negative pad hole, an LED bead pad hole, and a resistor pad hole.

[0007] Further, the front circuit layer is provided with a positive connection copper foil, a negative connection copper foil, and a connection copper foil for connecting the LED beads and resistors.

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

[0009] Further, the intermediate insulating layer is provided with a positive conductive connection hole connecting the positive connection copper foil and the positive conductive copper foil, and the intermediate insulating layer is provided with a negative conductive connection hole connecting the negative connection copper foil and the negative conductive copper foil.

[0010] Further, the positive connection copper foil is provided with a first connection portion for connecting the resistor, the first connection portion protrudes towards the inner side of the LED strip circuit board, and the connection copper foil is provided with a first groove corresponding to the first connection portion.

[0011] Further, the negative connection copper foil is provided with a second connection portion for connecting the LED lamp beads, the second connection portion protrudes towards the inner side of the LED strip circuit board, and the connection copper foil is provided with a second groove corresponding to the second connection portion.

[0012] Further, the model of the LED lamp bead is 2835, and the resistor is a chip resistor.

[0013] Further, six of the LED lamp beads and two of the resistors form a cut-and-splice unit, and a cut-and-splice interface is provided. The rated voltage of the LED strip is 5V - 24V.

[0014] Further, the resistors are arranged on the front and back sides of the cut-and-splice unit, and cut-and-splice marks are provided at both ends of the cut-and-splice unit.

[0015] Compared with the prior art, in the present utility model, an LED lamp bead group and a resistor group connected in series are installed on the LED strip circuit board. The LED lamp bead group includes a plurality of LED lamp beads connected in parallel, and the resistor group includes a plurality of resistors connected in parallel. The LED strip circuit board is respectively provided with a first main line, a second main line, and a third main line. The first main line is used for the parallel connection of one end of the resistor, the second main line is used for the parallel connection of the other end of the resistor, the second main line is used for the parallel connection of one end of the LED lamp bead, and the third main line is used for the parallel connection of the other end of the LED lamp bead. The structure of the LED strip is simple, it can be cut arbitrarily without affecting the normal light emission of other LED lamp beads. If a certain LED lamp bead is damaged, it will not affect the normal light emission of the entire LED strip. The light emission is stable, the installation and use are convenient. When bending, it will not affect the overall lighting of the LED strip due to the desoldering of the LED lamp beads. It can be crossed and lit arbitrarily, and will not burn out the LED lamp beads due to short circuit. The later maintenance is convenient, and the use experience is good. Description of the Drawings

[0016] 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 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 Structural schematic diagram of the LED light strip that can be arbitrarily cut of the present invention;

[0018] Figure 2 Structural schematic diagram of the front insulating layer of the present invention;

[0019] Figure 3 Structural schematic diagram of the front circuit layer of the present invention;

[0020] Figure 4 Structural schematic diagram of the middle insulating layer of the present invention;

[0021] Figure 5 Structural schematic diagram of the back circuit layer of the present invention.

[0022] In the figure: 1 - cutting and splicing unit; 2 - LED lamp beads; 3 - resistor; 4 - power positive pad hole; 5 - power negative pad hole; 6 - LED lamp bead pad hole; 7 - resistor pad hole; 8 - positive connection copper foil; 9 - negative connection copper foil; 10 - connection copper foil; 11 - positive conductive copper foil; 12 - negative conductive copper foil; 13 - positive conductive connection hole; 14 - negative conductive connection hole; 15 - first connection part; 16 - second connection part; 17 - cutting and splicing mark. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with 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.

[0024] Such as Figures 1 to 5A kind of LED light strip that can be arbitrarily cut according to the present utility model includes a flexible light strip circuit board. The light strip circuit board is installed with a series-connected LED lamp bead group and a resistor group. The LED lamp bead group includes a plurality of LED lamp beads 2 connected in parallel, and the resistor group includes a plurality of resistors 3 connected in parallel. The light strip circuit board is respectively provided with a first main line, a second main line and a third main line. The first main line is used for the parallel connection of one end of the resistor 3, the second main line is used for the parallel connection of the other end of the resistor 3, the second main line is used for the parallel connection of one end of the LED lamp bead 2, and the third main line is used for the parallel connection of the other end of the LED lamp bead 3. 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. By installing a series-connected LED lamp bead group and a resistor group on the light strip circuit board, the LED lamp bead group includes a plurality of LED lamp beads 2 connected in parallel, the resistor group includes a plurality of resistors 3 connected in parallel, the light strip circuit board is respectively provided with a first main line, a second main line and a third main line, the first main line is used for the parallel connection of one end of the resistor 3, the second main line is used for the parallel connection of the other end of the resistor 3, the second main line is used for the parallel connection of one end of the LED lamp bead 2, and the third main line is used for the parallel connection of the other end of the LED lamp bead 3, the structure of the LED light strip is simple, it can be arbitrarily cut without affecting the normal light emission of other LED lamp beads, the damage of a certain LED lamp bead will not affect the normal light emission of the whole LED light strip, the light emission is stable, the installation and use are convenient, the bending will not affect the overall lighting of the LED light strip due to the desoldering of the LED lamp beads, it can be arbitrarily crossed and lit, and the LED lamp beads will not be burned out due to short circuit, the later maintenance is convenient, and the use experience is good.

[0025] The front insulating layer is provided with a power supply positive electrode pad hole 4, a power supply negative electrode pad hole 5, an LED lamp bead pad hole 6 and a resistor pad hole 7, which are convenient for the welding and installation of the power supply line, the LED lamp bead 2 and the resistor 3.

[0026] The front circuit layer is provided with a positive electrode connecting copper foil 8, a negative electrode connecting copper foil 9 and a connecting copper foil 10 for connecting the LED lamp bead 2 and the resistor 3, which is convenient for the conductive connection of the LED lamp bead 2 and the resistor 3. The positive electrode connecting copper foil 8, the connecting copper foil 10 and the negative electrode connecting copper foil 9 are respectively the first main line, the second main line and the third main line.

[0027] The back circuit layer is provided with a positive electrode conductive copper foil 11 and a negative electrode conductive copper foil 12, which is convenient for the power supply connection of the LED light strip.

[0028] The intermediate insulating layer is provided with a positive electrode conductive connection hole 13 connecting the positive electrode connecting copper foil 8 and the positive electrode conductive copper foil 11, and the intermediate insulating layer is provided with a negative electrode conductive connection hole 14 connecting the negative electrode connecting copper foil 9 and the negative electrode conductive copper foil 12, which is convenient for the positive and negative power supply connection of the LED light strip.

[0029] The positive connection copper foil 8 is provided with a first connection portion 15 for connecting the resistor 3. The first connection portion 15 protrudes inwardly towards the LED strip circuit board. The connection copper foil 10 is provided with a first groove corresponding to the first connection portion 15, making the installation of the resistor 3 more convenient and reducing the width of the LED strip.

[0030] The negative connection copper foil 9 is provided with a second connection portion 16 for connecting the LED lamp beads 2. The second connection portion 16 protrudes inwardly towards the LED strip circuit board. The connection copper foil 10 is provided with a second groove corresponding to the second connection portion 16, making the installation of the LED lamp beads 2 more convenient and reducing the width of the LED strip.

[0031] In a specific implementation, the model of the LED lamp beads 2 is 2835, the resistor 3 is a chip resistor, and the width of the LED strip is smaller, saving materials and reducing production costs.

[0032] Six LED lamp beads 2 and two resistors 3 form a cut-and-splice unit 1, which is provided with a cut-and-splice interface. The rated voltage of the LED strip is 5V - 24V. The cut-and-splice unit 1 is short, easy to splice and replace, and more convenient to use.

[0033] The resistors 3 are arranged on the front and back sides of the cut-and-splice unit 1. Both ends of the cut-and-splice unit 1 are provided with cut-and-splice marks 17, which facilitate the cutting and splicing of the LED strip. It can also be cut arbitrarily without marks. After cutting, the light emission is stable and the use effect is good.

[0034] 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 principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An LED light strip that can be arbitrarily cut, characterized in that: It includes a flexible strip circuit board, on which an LED lamp bead group and a resistor group are connected in series. The LED lamp bead group includes a plurality of LED lamp beads connected in parallel, and the resistor group includes a plurality of resistors connected in parallel. The strip circuit board is respectively provided with a first main line, a second main line and a third main line. The first main line is used for the parallel connection of one end of the resistor, the second main line is used for the parallel connection of the other end of the resistor, the second main line is used for the parallel connection of one end of the LED lamp bead, and the third main line is used for the parallel connection of the other end of the LED lamp bead. The 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 which are arranged in sequence from top to bottom.

2. The arbitrarily cuttable LED light strip according to claim 1, characterized in that: The front insulating layer is provided with a power supply positive electrode pad hole, a power supply negative electrode pad hole, an LED lamp bead pad hole and a resistor pad hole.

3. The arbitrarily cuttable LED light strip according to claim 1, characterized in that: The front circuit layer is provided with a positive electrode connecting copper foil, a negative electrode connecting copper foil and a connecting copper foil for connecting the LED lamp beads and resistors.

4. The arbitrarily cuttable LED light strip according to claim 3, wherein: The back circuit layer is provided with a positive electrode conductive copper foil and a negative electrode conductive copper foil.

5. The arbitrarily cuttable LED light strip according to claim 4, characterized in that: The intermediate insulating layer is provided with a positive electrode conductive connection hole connecting the positive electrode connecting copper foil and the positive electrode conductive copper foil, and the intermediate insulating layer is provided with a negative electrode conductive connection hole connecting the negative electrode connecting copper foil and the negative electrode conductive copper foil.

6. The arbitrarily cuttable LED light strip according to claim 3, characterized in that: The positive electrode connecting copper foil is provided with a first connecting portion for connecting the resistor. The first connecting portion protrudes towards the inner side of the strip circuit board, and the connecting copper foil is provided with a first groove corresponding to the first connecting portion.

7. The arbitrarily cuttable LED light strip according to claim 3, wherein: The negative electrode connecting copper foil is provided with a second connecting portion for connecting the LED lamp bead. The second connecting portion protrudes towards the inner side of the strip circuit board, and the connecting copper foil is provided with a second groove corresponding to the second connecting portion.

8. The arbitrarily cuttable LED light strip according to claim 1, wherein: The model of the LED lamp bead is 2835, and the resistor is a chip resistor.

9. The arbitrarily cuttable LED light strip according to claim 1, wherein: Six of the LED lamp beads and two of the resistors form a cut-and-splice unit, and a cut-and-splice interface is provided. The rated voltage of the LED strip is 5V - 24V.

10. The arbitrarily cuttable LED light strip according to claim 9, characterized in that: The resistors are arranged on the front and back sides of the cut-and-splice unit, and cut-and-splice marks are provided at both ends of the cut-and-splice unit.

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