LED lamp strip capable of being cut at will

Abstract

The LED lamp strip capable of being cut at will comprises a lamp strip circuit board, two LED lamp bead sets and a resistor set which are connected in series are arranged on the lamp strip circuit board, each LED lamp bead set comprises a plurality of LED lamp beads connected in parallel, the resistor set comprises a plurality of resistors connected in parallel, the lamp strip circuit board is provided with a first main line and a second main line, and the first main line and the second main line are connected in parallel. 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. According to the LED lamp strip capable of being cut at will, the structure of the LED lamp strip is simple, the LED lamp strip can be cut at will, normal light emitting of other LED lamp beads cannot be affected, 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, and the situation that overall lighting of the LED lamp strip is affected due to unsoldering of the LED lamp beads when the LED lamp strip is bent is avoided. And the LED lamp beads cannot be burnt out due to short circuit.

Description

Technical Field

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

[0002] LED light strips are LEDs assembled on a strip-shaped FPC (flexible circuit board) or PCB hard board. They are named because their shape resembles a strip. With the advancement of science and technology and the improvement of people's living standards, LED light strips have become a common lighting device in people's daily lives. LED light strips are widely used and can be used for lighting and decoration. However, existing LED light strips are generally composed of multiple LED lamp beads connected in series with multiple resistors. When a lamp bead is damaged, the entire light strip will not light up, causing inconvenience to the user. When bending, the LED lamp beads are easily desoldered, affecting the overall lighting of the LED light strip. It cannot be lit in an arbitrary cross-linked manner. The LED lamp beads are easily burned due to short circuits, making subsequent maintenance inconvenient and the user experience poor. Therefore, in order to avoid the shortcomings of the existing technology, it is necessary to improve the existing technology. Utility Model Content

[0003] In order to solve the above problems, the present technical solution provides an LED light strip that can be cut arbitrarily.

[0004] To achieve the above purpose, the technical solution is as follows:

[0005] A arbitrarily cuttable LED light strip includes a light strip circuit board, wherein the light strip circuit board is provided with two groups of LED lamp beads and a resistor group connected in series, wherein 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 light strip circuit board is respectively provided with a first main line, a second main line, a third main line, and a fourth main line, wherein the first main line and the second main line are respectively connected to the positive and negative poles of the resistor group, the second main line and the fourth main line are respectively connected to the positive and negative poles of one of the LED lamp bead groups, and the third main line and the fourth main line are respectively connected to the positive and negative poles of another of the LED lamp bead groups. The light strip circuit board comprises, arranged in order from top to bottom, a front insulating layer, a front circuit layer, an intermediate insulating layer, a back circuit layer, and a back insulating layer.

[0006] In the LED light strip that can be cut arbitrarily as described above, the front insulating layer is provided with a power positive electrode soldering pad hole, a power negative electrode soldering pad hole, an LED lamp bead soldering pad hole and a resistor soldering pad hole.

[0007] In the LED light strip that can be cut arbitrarily as described above, the front circuit layer is provided with a positive electrode connecting copper foil, a negative electrode connecting copper foil, and two connecting copper foils connected to the LED lamp beads and the resistor respectively.

[0008] In the above-mentioned LED light strip that can be cut at will, the back circuit layer is provided with a positive conductive copper foil and a negative conductive copper foil.

[0009] As described above, in an LED light strip that can be cut at will, 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] As described above, in an LED light strip that can be cut at will, the positive electrode connecting copper foil is provided with a first connecting portion for connecting the resistor, the first connecting portion protrudes toward the inner side of the light strip circuit board, and the connecting copper foil is provided with a first groove corresponding to the first connecting portion.

[0011] As described above, in an LED light strip that can be cut at will, the negative electrode connecting copper foil is provided with a second connecting portion for connecting the LED lamp bead, the second connecting portion protrudes toward the inner side of the light strip circuit board, the connecting copper foil is provided with a second groove corresponding to the second connecting portion, and the other connecting copper foil is provided with a third groove corresponding to the second connecting portion.

[0012] In the above-mentioned LED light strip that can be cut at will, the resistor is a chip resistor, the light strip circuit board is a flexible circuit board, and the rated voltage of the LED light strip is 5V-24V.

[0013] In the above-mentioned LED light strip that can be cut arbitrarily, the twelve LED lamp beads and the two resistors together form a cutting and splicing unit, and the light strip circuit board is provided with a cutting and splicing interface.

[0014] In the LED light strip that can be cut arbitrarily as described above, the resistors are arranged at the front and rear sides of the cutting and splicing unit, and cutting and splicing marks are provided at both ends of the cutting and splicing unit.

[0015] The beneficial effects of this application are:

[0016] The utility model provides an LED light strip that can be cut arbitrarily, so that the structure of the LED light strip is simple, and it can be cut arbitrarily without affecting the normal lighting of other LED lamp beads. Damage to a certain LED lamp bead will not affect the normal lighting of the entire LED light strip. The light emission is stable and the installation and use are convenient. When bending, the overall lighting of the LED light strip will not be affected by the desoldering of the LED lamp beads. The LED light strip can be lit in an arbitrary cross-lighting manner without burning the LED lamp beads due to short circuit. The later maintenance is convenient and the user experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 Schematic diagram of the structure of the front insulation layer;

[0020] Figure 3 Schematic diagram of the structure of the front circuit layer;

[0021] Figure 4 Schematic diagram of the structure of the middle insulation layer;

[0022] Figure 5 Schematic diagram of the structure of the back circuit layer;

[0023] Figure 6 Schematic diagram of the structure of the back insulation layer. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] A arbitrarily cuttable LED light strip includes a light strip circuit board, wherein the light strip circuit board is provided with two groups of LED lamp beads and a resistor group connected in series, wherein 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 21, a second main line 22, a third main line 23 and a fourth main line 24, wherein the first main line 21 and the second main line 22 are respectively connected to the positive and negative poles of the resistor group, the second main line 22 and the fourth main line 24 are respectively connected to the positive and negative poles of one of the LED lamp bead groups, and the third main line 23 and the fourth main line 24 are respectively connected to the positive and negative poles of another of the LED lamp bead groups. The light strip circuit board includes, from top to bottom, a front insulating layer 25, a front circuit layer 26, an intermediate insulating layer 27, a back circuit layer 28 and a back insulating layer 29, which are sequentially arranged.

[0026] The utility model provides an LED light strip that can be cut at will, making the structure of the LED light strip simple. It can be cut at will without affecting the normal lighting of other LED beads. Damage to a single LED bead will not affect the normal lighting of the entire LED light strip. The light emission is stable and easy to install and use. The LED beads will not become desoldered when bent, affecting the overall lighting of the LED light strip. The LED beads can be lit in any cross-linking manner without burning out due to short circuits. Later maintenance is convenient and the user experience is excellent. In this embodiment, the color temperatures of the two groups of LED beads can be the same or different.

[0027] Furthermore, as a preferred embodiment of this solution but not limiting, the front insulating layer 25 is provided with a power positive electrode soldering hole 4, a power negative electrode soldering hole 5, an LED lamp bead soldering hole 6, and a resistor soldering hole 7. This facilitates the soldering and installation of the power cord, LED lamp bead 2, and resistor 3.

[0028] Furthermore, as a preferred embodiment of this solution but not limiting, the front circuit layer 26 is provided with a positive electrode connection copper foil 8, a negative electrode connection copper foil 9, and two connection copper foils 10 connected to the LED lamp bead 2 and the resistor 3, respectively. To facilitate the conductive connection of the LED lamp bead 2 and the resistor 3, the positive electrode connection copper foil 8 and the negative electrode connection copper foil 9 are the first main line and the third main line, respectively, and the two connection copper foils 10 are the second main line and the fourth main line, respectively.

[0029] Furthermore, as a preferred embodiment of this solution but not limiting, the back wiring layer 28 is provided with a positive conductive copper foil 11 and a negative conductive copper foil 12. In this embodiment, two negative conductive copper foils are provided. The back wiring layer is provided with positive conductive copper foil 11 and negative conductive copper foil 12 to facilitate the power supply connection of the LED light strip.

[0030] Furthermore, as a preferred embodiment of this solution but not limiting, the intermediate insulating layer 27 is provided with a positive conductive connection hole 13 connecting the positive connection copper foil 8 and the positive conductive copper foil 11, and the intermediate insulating layer 27 is provided with a negative conductive connection hole 14 connecting the negative connection copper foil 9 and the negative conductive copper foil 12. This facilitates the positive and negative power supply connections of the LED light strip.

[0031] Furthermore, as a preferred embodiment of this solution but not limiting, the positive electrode connecting copper foil 8 is provided with a first connecting portion 15 for connecting to the resistor 3. The first connecting portion 15 protrudes toward the inside of the light strip circuit board, and the connecting copper foil 10 is provided with a first groove 31 corresponding to the first connecting portion 15. This makes installation of the resistor 3 more convenient and reduces the width of the LED light strip.

[0032] Furthermore, as a preferred embodiment of this solution but not limiting, the negative electrode connecting copper foil 9 is provided with a second connecting portion 16 for connecting the LED lamp bead 2, the second connecting portion 16 protruding toward the inside of the light strip circuit board, the connecting copper foil 10 is provided with a second groove 32 corresponding to the second connecting portion 16, and the other connecting copper foil 10 is provided with a third groove 33 corresponding to the second connecting portion 16. This makes the installation of the LED lamp bead 2 more convenient and the width of the LED light strip is smaller.

[0033] Furthermore, as a preferred embodiment of this solution but not a limitation, resistor 3 is a chip resistor, the light strip circuit board is a flexible circuit board, and the rated voltage of the LED light strip is 5V-24V. In a specific implementation, the model of LED lamp bead 2 is 2835, and resistor 3 is a chip resistor. This reduces the width of the LED light strip, saves materials, and reduces production costs.

[0034] Furthermore, as a preferred embodiment of this solution but not a limitation, the twelve LED lamp beads 2 and the two resistors 3 together form a shear splicing unit 1, and the light strip circuit board is provided with a shear splicing interface 18. The shear splicing unit 1 is short, easy to splice and replace, and more convenient to use.

[0035] Furthermore, as a preferred embodiment of this solution but not a limitation, the resistor 3 is provided on the front and rear sides of the cutting and splicing unit 1, and both ends of the cutting and splicing unit 1 are provided with cutting and splicing marks 17. This facilitates the cutting and splicing of the LED light strip, and it can be cut arbitrarily without marks. After cutting, the light is stable and the use effect is good.

[0036] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application. Other embodiments whose principles and basic structures are the same or similar to those of the present application are within the scope of protection of the present application.

Claims

1. An LED light strip that can be cut arbitrarily, characterized by: The invention comprises a light strip circuit board, wherein two groups of LED lamp beads and a resistor group are provided on the light strip circuit board, wherein the LED lamp bead group comprises a plurality of LED lamp beads (2) connected in parallel, and the resistor group comprises a plurality of resistors (3) connected in parallel. The light strip circuit board is respectively provided with a first main line (21), a second main line (22), a third main line (23) and a fourth main line (24), wherein the first main line (21) and the second main line (22) are respectively connected to the positive and negative poles of the resistor group, the second main line (22) and the third main line (23) are respectively connected to the positive and negative poles of one of the LED lamp bead groups, and the second main line (22) and the fourth main line (24) are respectively connected to the positive and negative poles of another of the LED lamp bead groups. The light strip circuit board comprises a front insulating layer (25), a front circuit layer (26), an intermediate insulating layer (27), a back circuit layer (28) and a back insulating layer (29) which are sequentially arranged from top to bottom.

2. The LED light strip that can be arbitrarily cut according to claim 1, characterized in that: The front insulating layer (25) is provided with a power supply positive electrode welding pad hole (4), a power supply negative electrode welding pad hole (5), an LED lamp bead welding pad hole (6), and a resistor welding pad hole (7).

3. The LED light strip that can be arbitrarily cut according to claim 1, characterized in that: The front circuit layer (26) is provided with a positive electrode connecting copper foil (8), a negative electrode connecting copper foil (9), and two connecting copper foils (10) respectively connected to the LED lamp bead (2) and the resistor (3).

4. The LED light strip that can be arbitrarily cut according to claim 3, characterized in that: The back circuit layer (28) is provided with a positive electrode conductive copper foil (11) and a negative electrode conductive copper foil (12).

5. The LED light strip that can be arbitrarily cut according to claim 4, characterized in that: The intermediate insulating layer (27) is provided with a positive electrode conductive connection hole (13) connecting the positive electrode connection copper foil (8) and the positive electrode conductive copper foil (11), and the intermediate insulating layer (27) is provided with a negative electrode conductive connection hole (14) connecting the negative electrode connection copper foil (9) and the negative electrode conductive copper foil (12).

6. The LED light strip that can be cut to size according to claim 3, characterized in that: The positive electrode connecting copper foil (8) is provided with a first connecting portion (15) for connecting the resistor (3), the first connecting portion (15) protruding toward the inner side of the light strip circuit board, and the connecting copper foil (10) is provided with a first groove (31) corresponding to the first connecting portion (15).

7. The LED light strip that can be cut to size according to claim 3, characterized in that: The negative electrode connecting copper foil (9) is provided with a second connecting portion (16) for connecting the LED lamp bead (2), the second connecting portion (16) protruding toward the inner side of the light strip circuit board, the connecting copper foil (10) is provided with a second groove (32) corresponding to the second connecting portion (16), and the other connecting copper foil (10) is provided with a third groove (33) corresponding to the second connecting portion (16).

8. The LED light strip that can be cut to size according to claim 1, characterized in that: The resistor (3) is a chip resistor, the light strip circuit board is a flexible circuit board, and the rated voltage of the LED light strip is 5V-24V.

9. The LED light strip that can be cut to size according to claim 1, characterized in that: The twelve LED lamp beads (2) and the two resistors (3) together form a shearing and splicing unit (1), and a shearing and splicing interface (18) is provided on the light strip circuit board.

10. The LED light strip that can be cut to size according to claim 9, characterized in that: The resistors (3) are arranged at the front and rear sides of the shearing and splicing unit (1), and both ends of the shearing and splicing unit (1) are provided with shearing and splicing marks (17).

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