Anti-interference double-sided light-emitting colorful LED lamp strip

Abstract

The utility model discloses an anti-interference double-sided light-emitting colorful LED (light-emitting diode) lamp strip, which mainly comprises a front insulating substrate provided with a first group of LED lamp beads with upward surfaces and electrical components, and a back insulating substrate provided with a second group of LED lamp beads with downward surfaces and electrical components, wherein the front insulating substrate and the back insulating substrate are arranged back to back; the front insulating substrate and the back insulating substrate are wrapped by a transparent or semitransparent light-transmitting insulating layer, and is characterized in that 1-2 metal shielding layers are arranged between the front insulating substrate and the back insulating substrate; the metal shielding layer can be made of one of copper, aluminum, silver and iron. The structure solves the problems that signal interference exists between the lamp beads on the upper layer and the lamp beads on the lower layer of a conventional double-sided lamp strip, and the error code phenomenon occurs.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED lighting technical field especially a double -sided luminous color changing lamp strip of signal interference is improved and solved through multilayer circuit board structure, is applicable to building decoration, advertisement lighting etc. BACKGROUND

[0002] With the development of LED lighting technology, LED lamp strip lighting is more and more welcomed by people, and the structure of LED lamp strip limits, resulting in defects in the prior art, the existing double -sided luminous color changing lamp strip adopts carrier wave drive, as shown in the figure, adopts single -sided circuit board folding process, insulating soft base plate 1 is marked top layer text 2 on the front, insulating soft base plate is laid top layer solder resist 3 on the front, insulating soft base plate is laid top layer circuit 4 on the front, insulating soft base plate is set up slot -shaped cutting -off 5 in the long -way median, then single -sided circuit board is folded according to cutting -off 5 position and is connected to the electric point and is lightened, and there will be signal interference problem between upper layer and lower layer lamp pearl, causes to appear the error code phenomenon. Figure 1 Before the folding of the lamp panel, the color change of the lamp strip is regularly changed according to the program, and after folding, due to the signal interference problem of the two layers of lamp pearls, part of the lamp pearls appear irregular change or even no change phenomenon. In Chinese patent CN112689352A, single -sided FPC folding process is adopted, and the actual measurement shows that the adjacent lamp pearl crosstalk voltage reaches 12mV (exceeding ICNIRP standard limit value) ; Japanese patent also discloses: JP2021185702: double -row folding design leads to signal transmission delay difference (upper layer than lower layer delay 0.3us / m) and causes error code. Therefore, it causes certain industry pain point: 1, the impedance of single -sided circuit board folding place mutation, 2, the error rate of carrier frequency > 5kHz rises sharply. SUMMARY

[0003] The utility model aims at improving the deficiency existing in the prior art, and the utility model has the beneficial effect that: a new anti -interference double -sided luminous color changing LED lamp strip is provided, which solves the signal interference problem between the upper layer and the lower layer lamp pearl after folding and lighting of the single -sided circuit board folding process, and the error code phenomenon appears.

[0004] The utility model relates to an anti -interference double -sided light emission rainbow LED lamp area mainly by the front surface insulating substrate of first group LED lamp pearl and electrical element who sets face up, the back surface insulating substrate of second group LED lamp pearl and electrical element who sets face down, the front surface insulating substrate and back surface insulating substrate back to back setting, the transparent or translucent light -transmitting insulating layer of wrapping front surface insulating substrate and back surface insulating substrate is equipped with, its characterized in that: the front surface insulating substrate and back surface insulating substrate between setting 1-2 layer metal shielding layer.

[0005] Further, the anti-interference double-sided light emission rainbow LED lamp area, the front surface insulating substrate and the back surface insulating substrate are arranged on the same main insulating substrate, the main insulating substrate is folded to realize that one side is the front surface insulating substrate and the other side is the back surface insulating substrate; a layer of copper foil electrically insulated with the front surface insulating substrate and the back surface insulating substrate is laid on the bottom surface of the main insulating substrate, so that two layers of copper foil shielding layers are arranged between the front surface insulating substrate and the back surface insulating substrate after the main insulating substrate is folded, the process only needs to lay the copper foil on the bottom surface when the circuit of the main insulating substrate is made, and the later process is also simple and easy to operate. Of course, a thin copper sheet can also be inserted into the gap after the main insulating substrate is folded to realize the arrangement of the shielding layer between the front surface insulating substrate and the back surface insulating substrate.

[0006] Further, the anti-interference double-sided light emission rainbow LED lamp area, the front surface insulating substrate and the back surface insulating substrate are arranged on the same main insulating substrate, the main insulating substrate is folded to realize that one side is the front surface insulating substrate and the other side is the back surface insulating substrate; a layer of copper foil electrically insulated with the front surface insulating substrate and the back surface insulating substrate is laid on the bottom surface of the main insulating substrate, so that two layers of copper foil shielding layers are arranged between the front surface insulating substrate and the back surface insulating substrate after the main insulating substrate is folded, the process only needs to lay the copper foil on the bottom surface when the circuit of the main insulating substrate is made, and the later process is also simple and easy to operate. Of course, a thin copper sheet can also be inserted into the gap after the main insulating substrate is folded to realize the arrangement of the shielding layer between the front surface insulating substrate and the back surface insulating substrate.

[0007] Further, the anti-interference double-sided light emission rainbow LED lamp area, the thickness of the shielding layer is 0.1-1mm. Of course, it is also possible to be thicker, but the cost is increased without improvement in effect.

[0008] The utility model discloses a kind of anti-interference double-sided light-emitting LED lamp strips, to novel structure solve the signal interference problem between upper layer and lower layer lamp bead of conventional double-sided lamp strip, appear error code phenomenon.A kind of anti-interference double-sided light-emitting LED lamp strip of the utility model, even in the front and rear of lamp panel folding, the color change of its lamp strip can be realized according to program regular change, cannot appear partial lamp bead change irregular even no change phenomenon.Improve product quality and enhance company reputation. BRIEF DESCRIPTION OF DRAWINGS

[0009] The utility model is further described below in connection with drawings and embodiment:

[0010] Figure 1 It is prior art foldable main insulating substrate circuit board circuit diagram;

[0011] Figure 2 It is the main insulating substrate circuit board circuit diagram of the utility model embodiment 1 foldable;

[0012] Figure 3 It is the cross section schematic diagram of LED lamp strip of the utility model embodiment 1.

[0013] Figure 4 It is the cross section schematic diagram of LED lamp strip of the utility model embodiment 3. DETAILED DESCRIPTION

[0014] Embodiment 1:

[0015] In order to make the technical problem, technical scheme and beneficial effect to be solved by the utility model more clearly, the utility model is further described in detail in connection with drawings and embodiment.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0016] For the convenience of description, the utility model is used single-sided circuit board folding process structure as an example for description, such as Figure 2 、 3As shown in the utility model discloses an anti-interference double-sided light-emitting color LED lamp strip, mainly by the insulating substrate 1 that is equipped with LED lamp pearl and electrical element and the laying circuit, the width of insulating substrate 1 is 12mm, top layer text 2 is marked on the front of insulating soft substrate 1, top layer solder resist 3 is laid on the front of insulating soft substrate, top layer circuit 4 is laid on the front of insulating soft substrate, slot-shaped cutting 5 is set up in the lengthwise center of insulating soft substrate, LED lamp pearl 41 and relevant element are welded on single-sided circuit board, the copper foil that plays the shielding layer effect is also laid as bottom layer circuit 21 on the bottom surface of insulating soft substrate 1;With transparent or translucent light-insulating layer 31 wrapping insulating substrate 1 assembly;Insulating layer 31 lays 2 power supply wires 51, in this way, after folding main insulating substrate 1, it becomes the soft circuit core strip of about 6mm width, equivalent to setting 2 copper foil shielding layers between front insulating substrate and back insulating substrate.

[0017] Example 2:

[0018] This embodiment is changed on the basis of example 1, the insulating substrate 1 of prior art is divided into two in length, forms two circuit board strips of 6mm width, then a layer of copper foil that is electrically insulated with two circuit board strips is laid as shielding layer between two circuit board strips, so as to constitute 3-layer circuit board, welds LED lamp pearl and other elements according to normal process, then transparent light-insulating layer is wrapped 3-layer circuit board assembly to form an anti-interference double-sided light-emitting color LED lamp strip with shielding layer, this scheme requires front and back welding on 3-layer circuit board, and the requirement is slightly high.

[0019] Example 3:

[0020] For the convenience of description, this embodiment has similarities with example 2, it is single-row circuit board, the width is 6mm, and the core wire is changed into double layers with PVC separation in the middle, and the upper and lower layers are both filled with lamps. Figure 2 As shown in the utility model discloses an anti-interference double-sided light-emitting color LED lamp strip, mainly by the upper insulating substrate 12 and lower insulating substrate 13 that are equipped with LED lamp pearl 42 and electrical element and the laying circuit, and the upper PVC separation layer 62, thin copper foil layer 22 and small PVC separation layer 63 are sequentially clamped between the upper insulating substrate 12 and lower insulating substrate 13.

[0021] The above is only the preferred embodiment of the utility model, and does not limit the structure of the utility model in any form. Any simple modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiments still belong to the scope of the technical solutions of the utility model.

Claims

1. An anti-interference double-sided light-emitting color-changing LED light strip, mainly composed of a front insulating substrate provided with a first group of LED lamp beads facing upward and electrical components, a back insulating substrate provided with a second group of LED lamp beads facing downward and electrical components, the front insulating substrate and the back insulating substrate are arranged back to back, and a transparent or semi-transparent light-transmitting insulating layer is wrapped around the front insulating substrate and the back insulating substrate, characterized in that: The 1-2 layers of metal shielding layers are arranged between the front and back insulation substrates; the material of the metal shielding layer can be one of copper, aluminum, silver and iron.

2. The anti-interference double-sided light-emitting color-changing LED lamp strip according to claim 1, characterized in that: The front and back insulation substrates are arranged on the same main insulation substrate, and after the main insulation substrate is folded, one side is the front insulation substrate and the other side is the back insulation substrate; a layer of copper foil which is electrically insulated from the main insulation substrate is arranged on the bottom surface of the main insulation substrate, so that after the main insulation substrate is folded, two layers of copper foil shielding layers are arranged between the front and back insulation substrates.

3. The anti-interference double-sided light-emitting color-changing LED lamp strip according to claim 1, characterized in that: The front and back insulation substrates are arranged on independent insulation substrates, and a layer of copper foil which is electrically insulated from the front and back insulation substrates is arranged on the back surfaces of the front and back insulation substrates.

4. The anti-interference double-sided light-emitting color-changing LED lamp strip according to claim 2 or 3, characterized in that: The thickness of the shielding layer is 0.1-1mm.

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