LED (light-emitting diode) lamp strip with diffuser

Abstract

The utility model discloses a light-emitting diode (LED) lamp strip with a light scattering body, which comprises a circuit board, LED lamp beads arranged along the length direction of the circuit board are arranged on the circuit board, a transparent body extending along the length direction of the circuit board is covered on the LED lamp beads, and the light scattering body extending along the length direction of the circuit board is covered on the transparent body. According to the utility model, the transparent body is covered on the LED lamp beads, and the light scattering body is covered on the transparent body, so that the thickness of the light scattering body can be reduced, and the light emitting rate is increased; and the light mixing effect can be improved by increasing the distance between the light diffusing body and the LED lamp beads, so that the effects of uniform brightness of the light emitting surface of the lamp body and soft light are achieved.

Description

Technical Field

[0001] The utility model relates to an LED lamp, and particularly discloses an LED light belt with a light diffuser. Background Art

[0002] The existing LED light strip with a diffuser includes a circuit board, on which a plurality of LED lamp beads are arranged along the length direction thereof, and the LED lamp beads are coated with a diffuser extending along the length direction of the circuit board. The diffuser is a mixture of silica gel and diffuser, and the diffuser can cause light to undergo multiple irregular refractions and reflections in its body to form a diffuse reflection lighting effect. This eliminates point light sources and makes the light-emitting surface of the lamp body uniform and soft. However, if the thickness of the diffuser is too large, the light output efficiency will be reduced; if the thickness of the diffuser is not enough, the effect of a uniform and soft light-emitting surface cannot be achieved. In the prior art, a solution of increasing the thickness of the diffuser is generally adopted, sacrificing light output efficiency in exchange for a uniform and soft light-emitting surface. Utility Model Content

[0003] Based on this, it is necessary to provide an LED light strip with a uniform and soft light-emitting surface and high light output efficiency in response to the existing technical problems.

[0004] To solve the problems of the prior art, the utility model discloses an LED light strip with a diffuser, comprising a circuit board, on which are arranged LED lamp beads along its length direction, the LED lamp beads are covered with a transparent body extending along the length direction of the circuit board, and the transparent body is covered with the diffuser extending along the length direction of the circuit board.

[0005] The beneficial effects of the utility model are as follows: since the LED lamp bead is covered with a transparent body, and the transparent body is covered with a diffuser, the thickness of the diffuser can be reduced and the light output rate can be increased; the mixed light effect can be increased by increasing the distance between the diffuser and the LED lamp bead, thereby achieving the effect of uniform brightness and soft light on the luminous surface of the lamp body.

[0006] As a further improvement of the utility model: dams extending along the length direction of the circuit board are arranged on both sides of the LED lamp bead. The dams are made of white opaque plastic. The distance between the light outlets of the two dams is greater than the distance between their bottoms. The interface between the transparent body and the light diffuser is an arc surface. The light outlet surface of the light diffuser is an arc surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the exploded structure of the utility model.

[0008] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0009] Figure 3 for Figure 2Schematic diagram of the structure of the AA section. DETAILED DESCRIPTION

[0010] In order to further understand the features, technical means, specific purposes and functions of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. The description of the positional relationship between the components themselves and the components in this application document (including but not limited to up, down, inside, outside, left, right, top and bottom, etc.) is only based on the relative relationship of the positions of the relevant components shown in the drawings of the application document as a reference, and does not represent an absolute limitation on the scope of protection of the utility model.

[0011] refer to Figure 1 An LED light strip with a diffuser comprises a circuit board 1, wherein a plurality of LED lamp beads 2 are arranged in the center of the circuit board 1 along the length direction thereof, and dams 3 extending along the length direction of the circuit board 1 are arranged on both sides of the LED lamp beads 2, and transparent bodies 4 covering the LED lamp beads 2 are coated in the two dams 3, and the transparent bodies 4 are covered with diffusers 5.

[0012] refer to Figure 1 The circuit board 1 includes a back insulating layer, a circuit layer and a front insulating layer from the back to the front. The front insulating layer is provided with solder pads 11 for exposing the circuit layer, wherein the solder pads located inside the dam 3 are used for soldering LED lamp beads 2, and the solder pads 11 located outside the dam 3 are used for soldering wires to connect to an external power source.

[0013] refer to Figure 1 and 3 The dam 3 is used to accommodate the transparent body 4 and the diffuser 5 to prevent them from overflowing during the coating process. The dam 3 is preferably made of white plastic, and the distance L1 between the light outlets of the two dams 3 is greater than the distance L2 between their bottoms. In this way, the two dams 3 form a reflective groove with a trumpet-shaped cross section, which can reflect more light to the diffuser 5 to increase the light extraction efficiency.

[0014] refer to Figures 1 to 3 . The transparent body 4 is transparent silica gel, and the diffuser 5 is a mixture of transparent silica gel and diffuser. The diffuser 5 can make the light undergo multiple irregular refractions and reflections in its body to form a diffuse reflection lighting effect, so as to eliminate the point light source of the LED lamp bead, and make the brightness of the light-emitting surface of the lamp body uniform and the light soft. The interface 41 between the transparent body 4 and the diffuser 5 is an arc surface, and the center of the arc surface is the position of the LED lamp bead 2, so that the light emitted by the LED lamp bead can pass through the interface surface to the greatest extent, so as to reduce the total reflection of the light at the interface and increase the light extraction efficiency. The outer surface of the diffuser 5 is the light extraction surface 51, and the light extraction surface 51 is preferably an arc surface with the position of the LED lamp bead 2 as the center, so as to reduce the total reflection of the light at the light extraction surface 51 and increase the light extraction efficiency.

[0015] refer to Figures 1 to 3 The manufacturing method of the utility model is as follows: firstly, a circuit board 1 is made, and an LED lamp bead 2 is welded on the circuit board 1; then, a dam 3 is made on both sides of the LED lamp bead 2; then, transparent silicone is firstly coated in the dam 3 to form a transparent body 4 with an arc surface; finally, a diffuser 5 is coated on the transparent body 4, and the light emitting surface of the diffuser 5 is an arc surface.

[0016] The utility model covers the LED lamp bead with a transparent body, and then covers the diffuser on the transparent body, so that the thickness of the diffuser can be reduced to increase the light output rate; and the distance between the diffuser and the LED lamp bead can be increased to increase the light mixing effect, thereby achieving the effect of uniform brightness and soft light on the luminous surface of the lamp body.

[0017] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An LED light strip with a diffuser, characterized in that: It comprises a circuit board, on which LED lamp beads are arranged along the length direction thereof, the LED lamp beads are covered with a transparent body extending along the length direction of the circuit board, and the transparent body is covered with a light diffuser extending along the length direction of the circuit board.

2. The LED light strip with a diffuser according to claim 1, characterized in that: Dams extending along the length direction of the circuit board are arranged on both sides of the LED lamp bead, and the transparent body and the light-scattering body are located between the dams.

3. The LED light strip with a diffuser according to claim 2, characterized in that: The enclosure dam is made of white opaque plastic.

4. The LED light strip with a diffuser according to claim 2, characterized in that: The distance between the light outlets of the two dams is greater than the distance between their bottoms.

5. The LED light strip with a diffuser according to claim 1, characterized in that: The interface between the transparent body and the light-scattering body is an arc surface.

6. The LED light strip with a diffuser according to claim 1, characterized in that: The light emitting surface of the light diffuser is an arc surface.

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