Lamp strip

Abstract

The utility model discloses a lamp band which comprises flexible circuit boards, a sleeve and a shading strip, current-limiting resistors and three LED lamp beads are welded on the flexible circuit boards, a plurality of flexible circuit boards are connected in series, the sleeve is sleeved outside the flexible circuit boards, a through hole is arranged inside the sleeve, a dodging strip is inserted inside the through hole, the dodging strip surrounds the LED lamp beads, and the shading strip is arranged on the flexible circuit boards. The two light shading strips are fixedly connected into the sleeve and located on the left side and the right side of the LED lamp bead, the LED lamp bead is covered with the light uniformizing strip, light rays can be evenly diffused and distributed, direct and concentrated light rays emitted by the lamp bead are eliminated or reduced, and therefore light spots are reduced, and the sleeve has a certain light ray intensity weakening effect, so that the service life of the LED lamp is prolonged, and the service life of the LED lamp is prolonged. When the lamp strip is seen nearby, emitted light is soft and not dazzling, the lamp strip adopts 54-volt constant current and 55-65-volt constant voltage, the current is small, the lamp strip can be connected in series for a longer time, and compared with a 12-volt or 24-volt lamp strip, the lamp strip saves electricity by about 30% at the same brightness.

Description

Technical Field

[0001] The utility model relates to the technical field of light strips, in particular to a light strip. Background Art

[0002] LED flexible light strips generally include flexible circuit boards, lamp beads, and silicone sleeves. The light strips are placed in the silicone sleeves to provide good waterproofing, making it easier to arrange the light strips into a specified shape to form a strip-shaped lighting effect. However, when viewed from a distance, the most commonly used light strips are visually a uniformly luminous light strip, but when viewed from close up, the lamp beads will cause the light strips to have many light spots, which not only deteriorates the visual effect, but also easily causes light glare. Utility Model Content

[0003] The purpose of the utility model is to provide a light strip to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a light strip, comprising a flexible circuit board, a current limiting resistor and three LED lamp beads are welded on the flexible circuit board, the current limiting resistor limits the current to prevent the circuit from being short-circuited or the LED lamp beads from being damaged due to excessive current, and several flexible circuit boards are connected in series, and the flexible circuit boards can be cut according to needs;

[0005] The sleeve is sleeved on the outside of the flexible circuit board, and a through hole is provided inside the sleeve. A light-homogenizing strip is inserted into the through hole, and the light-homogenizing strip surrounds the outside of the LED lamp bead. The light-homogenizing strip and the sleeve play a dual light-homogenizing role on the LED lamp bead, and the light strip emits light evenly without glare;

[0006] Two shading strips are provided and fixedly connected inside the sleeve, and the two shading strips are located on the left and right sides of the LED lamp beads to avoid light leakage on the sides of the lamp strip.

[0007] Furthermore, welding points are provided at both ends of the surface of the flexible circuit board, and wires are welded on the welding points. The wires are convenient for powering the light strip, and when the flexible circuit board is cut, the welding points are also convenient for welding the wires.

[0008] Furthermore, reflective paper is provided on the lower surface of the flexible circuit board to ensure that all lamp tubes are emitted from the front of the light strip. The reflective paper is located inside the sleeve. A thermal conductive aluminum strip is fixedly connected to the bottom of the reflective paper. The thermal conductive aluminum strip is fixedly connected to the sleeve, which increases the thermal conductivity efficiency of the flexible circuit board.

[0009] Furthermore, a groove is provided on the back of the sleeve, and ventilation grooves connected to the groove are provided on both sides of the back of the sleeve. After the light strip is arranged, air can flow in the groove and the ventilation groove to dissipate heat for the light strip.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] (1) The uniform light strip covers the LED lamp beads, which can achieve uniform diffusion and distribution of light, eliminate or reduce the direct and concentrated light emitted by the lamp beads, thereby reducing the generation of light spots. In addition, the sleeve also has a certain effect of reducing the intensity of light. When looking at the light strip from a close distance, the light is soft and not dazzling.

[0012] (2) The light strip uses 54V constant current and 55V to 65V constant voltage. The current is small and can be connected in series for a longer time. Compared with 12V or 24V light strips, with the same brightness, it saves about 30% of electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the connection between the flexible circuit board and the LED lamp beads of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the back side of the sleeve of the utility model;

[0015] Figure 3 It is a cross-sectional view of the connection between the flexible circuit board and the sleeve of the utility model.

[0016] In the figure: 1. Flexible circuit board; 2. LED lamp beads; 3. Current limiting resistor; 4. Welding point; 5. Wire; 6. Vent groove; 7. Groove; 8. Sleeve; 9. Through hole; 10. Light uniformity strip; 11. Shading strip; 12. Reflective paper; 13. Thermal conductive aluminum strip. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0018] See also Figure 1-3 , the utility model provides a technical solution: a light strip, comprising a flexible circuit board 1, a current limiting resistor 3 and three LED lamp beads 2 are welded on the flexible circuit board 1, and a plurality of flexible circuit boards 1 are connected in series;

[0019] For example, 11 flexible circuit boards 1 are connected in series, with a total of 33 lamp beads, 11 current-limiting resistors 3, and the light strip uses a 54V constant current and a 55V to 65V constant voltage. In this case, the power of a conventional 12V or 24V light strip with a length of one meter is 10 watts. At the same brightness, the power of the light strip with 11 flexible circuit boards 1 in series is 7 watts, but the light intensity is consistent, which is more energy-saving.

[0020] The sleeve 8 is sleeved on the outside of the flexible circuit board 1. A through hole 9 is provided inside the sleeve 8. A light-homogenizing strip 10 is inserted into the through hole 9. The light-homogenizing strip 10 surrounds the outside of the LED lamp bead 2. The sleeve 8 is supported by silicone. Transparent silicone or white translucent silicone can be used according to needs. The luminous intensity of transparent silicone is greater than that of white translucent silicone. The light of white translucent silicone is softer.

[0021] The shading strips 11 are provided with two shading strips 11 and fixedly connected inside the sleeve 8, and the two shading strips 11 are located on the left and right sides of the LED lamp bead 2. The shading strips 11 can prevent light leakage from the side of the light strip, thereby improving the quality of the light strip.

[0022] In this embodiment, if Figure 1 As shown, welding points 4 are provided at both ends of the surface of the flexible circuit board 1, and wires 5 are welded on the welding points 4. A cutting line is provided in the middle of the welding points 4, so that the flexible circuit board 1 can be cut open and the wires 5 can be fixed to the welding points 4 by soldering.

[0023] In this embodiment, if Figure 3 As shown, a reflective paper 12 is provided on the lower surface of the flexible circuit board 1. The reflective paper 12 is located inside the sleeve 8. The reflective paper 12 reflects light onto the light-uniforming strip 10, so that the light strip only emits light on the front side.

[0024] In this embodiment, if Figure 3 As shown, a heat-conducting aluminum strip 13 is fixedly connected to the bottom of the reflective paper 12, and the heat-conducting aluminum strip 13 is fixedly connected to the sleeve 8. The heat-conducting aluminum strip 13 can conduct heat to the flexible circuit board 1 and the LED lamp beads 2 to avoid heat accumulation inside the light strip, which helps to extend the life of the LED lamp beads 2.

[0025] In this embodiment, if Figure 2 and Figure 3 As shown, a groove 7 is provided on the back of the sleeve 8, and ventilation grooves 6 connected to the groove 7 are provided on both sides of the back of the sleeve 8. Air can flow in the groove 7 and the ventilation groove 6. The heat-conducting aluminum strip 13 conducts heat to the sleeve 8, and the sleeve 8 dissipates heat through air flow.

[0026] Specifically, when in use, a DC power supply is connected to the wire 5, the DC power supply supplies power to the flexible circuit board 1, the LED lamp beads 2 on the flexible circuit board 1 emit light, and when the light is irradiated to the uniform light strip 10, the uniform light strip 10 scatters the light, and can evenly diffuse the point light source emitted by the LED lamp beads 2, and turn it into a divergent light source, thereby effectively reducing the light spot phenomenon and making the light more uniform. When the light strip is viewed from close up, the light will be soft and spotless.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A light strip, characterized in that: include: A flexible circuit board (1), a current limiting resistor (3) and three LED lamp beads (2) are welded on the flexible circuit board (1), and a plurality of flexible circuit boards (1) are connected in series; A sleeve (8), the sleeve (8) being sleeved on the outside of the flexible circuit board (1), the sleeve (8) being provided with a through hole (9) inside, a light homogenizing strip (10) being inserted into the through hole (9), and the light homogenizing strip (10) being surrounded on the outside of the LED lamp bead (2); Light shielding strips (11), wherein two light shielding strips (11) are provided and fixedly connected inside the sleeve (8), and the two light shielding strips (11) are located on the left and right sides of the LED lamp bead (2).

2. A light strip according to claim 1, characterized in that: Welding points (4) are provided at both ends of the surface of the flexible circuit board (1), and electric wires (5) are welded to the welding points (4).

3. The light strip according to claim 1, characterized in that: The lower surface of the flexible circuit board (1) is provided with reflective paper (12), and the reflective paper (12) is located inside the sleeve (8).

4. A light strip according to claim 3, characterized in that: A heat-conducting aluminum strip (13) is fixedly connected to the lower side of the reflective paper (12), and the heat-conducting aluminum strip (13) is fixedly connected to the sleeve (8).

5. The light strip according to claim 1, characterized in that: The back side of the sleeve (8) is provided with a groove (7), and the back side of the sleeve (8) is provided with ventilation grooves (6) connected to the groove (7).

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