Light interference prevention LED light bar

Abstract

The utility model provides an LED light bar capable of preventing light interference. The LED light bar comprises a circuit board, a metal shielding layer and a magnetic shielding coating, wherein the metal shielding layer and the magnetic shielding coating are sequentially coated on the circuit board; the LED lamp comprises a circuit board, a plurality of lamp beads, a signal line and a power line, the lamp beads are distributed on the circuit board in an array mode, the circuit board is coated with paint to form a magnetic shielding coating and a metal shielding layer so as to protect the lamp beads located on the circuit board, the circuit board is protected against signal interference of adjacent lamp strips, signal interference between the adjacent lamp beads can also be prevented, and the lamp beads can be protected from being damaged. In addition, the signal lines and the power lines are sleeved with the sleeve shells, the same-direction arrangement is achieved, shielding isolation can be achieved through wire arrangement, signal interference is reduced, and therefore the purpose that adjacent light bar signals do not interfere with one another is achieved; a ceramic capacitor is connected in parallel between a lamp bead and a power line connector; and an inductor can be connected in series to suppress low-frequency interference, effectively filter high-frequency interference and reduce the influence of power supply fluctuation on the LED light bar.

Description

Technical Field

[0001] This utility model relates to an LED light strip that prevents light interference, belonging to the field of LED lighting. Background Technology

[0002] LED light strips are another name for light strips, and are a type of LED lighting product; they are divided into flexible light strips and rigid light strips. Currently, LED light strips are distributed in lighting fixtures in numbers of two or more. Due to the close proximity of adjacent LED light strips, the LED lights on the strips can interfere with each other.

[0003] LED light strips typically achieve multiple color displays by combining red, green, and blue (RGB) LED chips. Interference can affect the control chip's precise control over these three color chips. For example, in a smart home environment, if other wireless signals interfere with the Zigbee or Wi-Fi signals that control the color changes of the LED light strip, it may cause the light strip's color to deviate. What was originally intended to display a soft, warm white light may become cooler or have mixed colors due to interference, affecting the lighting atmosphere and decorative effect.

[0004] The existing application number is 201810484365.4, and the patent application title is "An LED Light Strip". It discloses that by setting a reflector outside each LED light point or outside a single LED light, the light from each LED light point or LED light will not cross or interfere with each other, resulting in good lighting effect. Moreover, the reflector has a certain degree of elasticity. When assembled into a display screen, it can undergo elastic deformation and make close contact with the glass panel, avoiding light interference between adjacent light strips or LED lights, which helps to improve the display effect of the display screen.

[0005] Setting a reflector on the outside of an LED light will also affect the light-emitting effect of the LED light itself, reduce its luminous efficiency, and cannot resist electromagnetic interference from adjacent light strips. Electromagnetic interference will cause the light strips to flicker or strobe, making users feel uncomfortable and causing visual fatigue over time.

[0006] In response to this, the present invention provides an LED light strip that prevents light interference. Utility Model Content

[0007] In view of this, the purpose of this utility model is to provide an LED light strip that prevents light interference.

[0008] This utility model is implemented as follows:

[0009] An LED light strip designed to prevent light interference includes a circuit board and a metal shielding layer and a magnetic shielding coating sequentially coated on the circuit board.

[0010] The circuit board contains several LED chips, signal lines, and power lines. The LED chips are arranged in an array on the circuit board, and the signal lines and power lines are arranged on both sides of the LED chips to supply power to the LED chips and transmit electrical signals.

[0011] It also includes a housing for magnetic interference, which is located on one side of the circuit board and encloses the signal lines and power lines exposed outside the circuit board.

[0012] As a further improvement, the shell includes a main body, which is a hollow cylindrical body;

[0013] The partition, the first accommodating cavity, and the second accommodating cavity are located inside the main body and divide the internal space of the main body into the first accommodating cavity and the second accommodating cavity, which accommodate signal lines or power lines.

[0014] As a further improvement, the partition is embedded with metal sheets.

[0015] As a further improvement, the thickness of the metal sheet is 0.05-0.1 cm.

[0016] As a further improvement, the body is made of plastic.

[0017] As a further improvement, the main body is a column with different diameters at both ends.

[0018] As a further improvement, the thickness L of the main body is 0.1-0.3 cm.

[0019] As a further improvement, a ceramic capacitor is connected in parallel between the LED and the power cord connector.

[0020] The beneficial effects of this utility model are:

[0021] (1) This utility model coats the circuit board with a coating to form a magnetic shielding coating and a metal shielding layer to protect the LED beads located on the circuit board, protect the circuit board from signal interference from adjacent LED strips, and prevent signal interference between adjacent LED beads. Furthermore, the signal line and power line are encased in a shell to achieve the same direction arrangement. The wire arrangement can also achieve shielding and isolation, reduce signal interference, and thus achieve the purpose of preventing signal interference between adjacent LED strips.

[0022] (2) This utility model has a ceramic capacitor connected in parallel between the LED bead and the power cord connector; it can also connect an inductor in series to suppress low-frequency interference, effectively filter out high-frequency interference, and reduce the impact of power fluctuations on LED light strips. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of an LED light strip that prevents light interference, provided by an embodiment of the present invention.

[0025] Figure 2 This utility model provides a schematic diagram of a housing structure for an LED light strip that prevents light interference. Figure 1 .

[0026] Figure 3 This is a schematic diagram illustrating the principle of an LED light strip designed to prevent light interference, provided by an embodiment of this utility model.

[0027] Figure 4 This utility model provides a schematic diagram of a housing structure for an LED light strip that prevents light interference. Figure 2 . Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] Reference Figures 1-4As shown, this embodiment provides a specific implementation of an LED light strip for preventing light interference, including a circuit board 10 and a metal shielding layer 20 and a magnetic shielding coating 30 sequentially coated on the circuit board 10;

[0031] The circuit board 10 includes LED beads 40, signal lines 50, and power lines 60. The LED beads 40 are arranged in an array on the circuit board 10, and the signal lines 50 and power lines 60 are arranged on both sides of the LED beads 40 to supply power to the LED beads 40 and transmit electrical signals.

[0032] It also includes a housing 70 for magnetic interference, which is located on one side of the circuit board 10 and encloses the signal lines 50 and power lines 60 exposed outside the circuit board 10.

[0033] The magnetic shielding coating 30 is made by applying magnetic shielding paint, which includes, but is not limited to, electromagnetic shielding paint. It can effectively reduce electromagnetic interference and radiation and protect LED light strips.

[0034] The metal shielding layer 20 is a conductive material layer used to prevent electromagnetic interference and radio frequency interference (RFI). Its working principle is based on electromagnetic induction and electrostatic shielding.

[0035] In other words, this utility model coats the circuit board 10 with a coating to form a magnetic shielding coating 30 and a metal shielding layer 20 to protect the LED beads 40 located on the circuit board 10, protect the circuit board 10 from signal interference from adjacent LED strips, and also prevent signal interference between adjacent LED beads. Furthermore, the signal line 50 and the power line 60 are fitted with a housing 70 to achieve a unidirectional arrangement, and the wire arrangement can also achieve shielding and isolation, reducing signal interference, thereby achieving the purpose of preventing signal interference between adjacent LED strips.

[0036] The casing 70 includes a main body 701, which is a hollow columnar body.

[0037] The partition 702, the first accommodating cavity 703, and the second accommodating cavity 704 are located inside the main body 701 and divide the internal space of the main body 701 into the first accommodating cavity 703 and the second accommodating cavity 704. The first accommodating cavity 703 and the second accommodating cavity 704 accommodate signal lines 50 or power lines 60.

[0038] Furthermore, the partition 702 is embedded with a metal sheet 721, which can reflect and absorb electromagnetic interference signals from the signal line 50 or the power line 60, just like an electromagnetic barrier, thereby achieving and strengthening the purpose of the shielding barrier.

[0039] Furthermore, the main body 701 is made of plastic, which has strong plasticity and good flexibility after shaping, and can be bent, thus better protecting the signal line 50 or the power line 60.

[0040] In one specific embodiment, the metal sheet 721 has a thickness of 0.05-0.1cm, is bendable, and can bend and recover along with the main body 701.

[0041] In one specific embodiment, the main body 701 is a column with different diameters at both ends. When the signal line 50 or the power line 60 passes through the first accommodating cavity 703 or the second accommodating cavity 704 inside the main body 701, the end with the smaller diameter can be tightly attached to the end of the light strip, stably fixing the solder joint of the signal line 50 or the power line 60 to the circuit board, making it difficult to fall off. It can be detached from the light strip with just a little force.

[0042] In one specific embodiment, the thickness L of the main body 701 is 0.1-0.3cm, allowing the main body 701 to be easily bent and separated, adapting to different usage environments.

[0043] In some other embodiments, a ceramic capacitor 80 is connected in parallel between the LED bead 40 and the power line 60 connector; there are several ceramic capacitors 80, and an inductor can be connected in series to suppress low-frequency interference, effectively filter out high-frequency interference, and reduce the impact of power fluctuations on the LED light strip.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An LED light strip designed to prevent light interference, characterized in that, Includes a circuit board (10) and a metal shielding layer (20) and a magnetic shielding coating (30) sequentially coated on the circuit board (10); The circuit board (10) contains several LED beads (40), signal lines (50) and power lines (60). The LED beads (40) are arranged in an array on the circuit board (10), and the signal lines (50) and power lines (60) are arranged on both sides of the LED beads (40) to supply power to the LED beads (40) and transmit electrical signals. It also includes a housing (70) for magnetic interference, which is located on one side of the circuit board (10) and encloses the signal lines (50) and power lines (60) exposed outside the circuit board (10).

2. The LED light strip for preventing light interference according to claim 1, characterized in that, The casing (70) includes a main body (701), which is a hollow columnar body; The partition (702), the first accommodating cavity (703), and the second accommodating cavity (704) are located inside the main body (701) and divide the internal space of the main body (701) into the first accommodating cavity (703) and the second accommodating cavity (704). The first accommodating cavity (703) and the second accommodating cavity (704) accommodate signal lines (50) or power lines (60).

3. The LED light strip for preventing light interference according to claim 2, characterized in that, The partition (702) is embedded with a metal sheet (721).

4. The LED light strip for preventing light interference according to claim 3, characterized in that, The thickness of the metal sheet (721) is 0.05-0.1cm.

5. The LED light strip for preventing light interference according to claim 2, characterized in that, The main body (701) is made of plastic.

6. The LED light strip for preventing light interference according to claim 2, characterized in that, The main body (701) is a column with different diameters at both ends.

7. The LED light strip for preventing light interference according to claim 2, characterized in that, The thickness L of the main body (701) is 0.1-0.3cm.

8. The LED light strip for preventing light interference according to claim 2, characterized in that, A ceramic capacitor (80) is connected in parallel between the lamp bead (40) and the power cord (60) connector.

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