Device with light-emitting LED lamp and light guide lens

Abstract

The utility model discloses a device with a light-emitting LED lamp. The device comprises a light guide lens, wherein the light guide lens comprises a light inlet formed in the top and a first light outlet formed in the bottom; the opening of the light inlet is upward, and the bottom of the light inlet is a first blind end; the light inlet gradually extends inwards from the opening in the top to the first blind end at the bottom, and the inner wall surface of the light inlet is the light inlet surface of the light guide lens; the opening of the first light outlet is downward, and the bottom of the first light outlet is a second blind end; the first light outlet gradually extends inwards from the opening in the top to the second blind end at the bottom; the inner wall surface of the first light outlet is a first light outlet surface of the light guide lens; the second blind end is positioned below the first blind end; the device with the light-emitting LED lamp comprises a PCB provided with the LED lamp, a shell and the light guide lens. According to the utility model, the light source gathering capability can be improved, so that the utilization efficiency of LED light is improved.

Description

Technical Field

[0001] This utility model relates to the field of LED lighting technology, and in particular to a device with a built-in LED light and a light guide lens. Background Technology

[0002] A light-emitting diode, or LED for short, is a commonly used light-emitting device that releases light through the recombination of electrons and holes. It has wide applications in the lighting field. LEDs can efficiently convert electrical energy into light energy and have extensive uses in modern society, such as lighting, flat panel displays, and medical devices.

[0003] Typically, LED light sources are directly mounted on the PCB circuit board inside the device, while the light emission aperture is located on the device casing. Therefore, there is a distance between the LED and the light emission aperture, requiring a lens to guide the light path. In the prior art, for example, patent 201621260754.1 discloses an LED lens structure, in which the LED lens is placed above the LED chip to change the light path emitted by the LED chip and achieve light diffusion. The lower part of the lens is the light inlet for focusing, while the top is designed in an arc shape for light diffusion. However, the focusing effect of this structure is not good enough. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a device with a built-in LED light and a light guide lens, which can improve the ability to focus light sources, thereby improving the utilization efficiency of LED light.

[0005] To solve the above-mentioned technical problems, the first aspect of this utility model discloses a light guide lens, including a light inlet at the top and a first light outlet at the bottom;

[0006] The light inlet faces upwards, and its bottom is the first blind end; the light inlet gradually narrows from the top opening to the bottom first blind end, and the inner wall surface of the light inlet is the light-inlet surface of the light guide lens.

[0007] The first light-emitting port faces downwards, and its bottom is the second blind end; the first light-emitting port gradually narrows from the top opening to the bottom second blind end; the inner wall surface of the first light-emitting port is the first light-emitting surface of the light guide lens.

[0008] The second blind end is located below the first blind end.

[0009] As an optional implementation, the curvature of the light inlet and / or the first light outlet gradually increases from top to bottom.

[0010] As another optional implementation, it also includes a second light-emitting port located at the bottom; the second light-emitting port is an annular groove surrounding the first light-emitting port, and the annular inner wall surface of the annular groove near the first light-emitting port is the second light-emitting surface of the light guide lens.

[0011] As another optional implementation, the connecting surface between the second light-emitting surface and the first light-emitting surface is the third light-emitting surface of the light guide lens; the third light-emitting surface is a plane or a curved surface.

[0012] As another optional implementation, the top edge of the light guide lens is provided with a lug for fixing the light guide lens.

[0013] The second aspect of this utility model discloses a device with a built-in LED light, including a PCB board on which the LED light is mounted and a housing with a light emission channel, the light emission channel being located below the LED light, and also including a light guide lens as described in the first aspect of this utility model, the light guide lens being disposed below the PCB board, with the light inlet of the light guide lens facing the LED light and the light outlet of the light guide lens facing the light emission channel.

[0014] As another optional implementation, the inner wall portion of the housing below the LED light is provided with a plurality of light-emitting holes, which constitute the light-emitting channel.

[0015] As another optional implementation, the light guide lens is provided with a hanging ear at the top edge, and an annular post is provided on the inner wall of the housing below the LED light, and the hanging ear is fastened to the annular post.

[0016] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0017] In this embodiment of the invention, the bottom wall of the light inlet is responsible for collecting the light source, the first blind end focuses the light source, and the wall of the first light outlet is responsible for refracting and dispersing the light source, thereby achieving uniform dispersion of the LED light. The light inlet of this embodiment is designed to gradually converge from the top opening to the bottom, so that the first blind end at the bottom is a point, which has a stronger ability to focus the light source than a plane, and can improve the utilization efficiency of LED light. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the structure of a light guide lens disclosed in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the principle of a light guide lens disclosed in an embodiment of this utility model;

[0021] Figure 3 This is a partial structural schematic diagram of a device with a built-in LED light disclosed in an embodiment of this utility model;

[0022] Figure 4 This is another structural schematic diagram of a device with a built-in LED light disclosed in an embodiment of this utility model. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1

[0025] See Figures 1-2 This utility model discloses a light guide lens 1, including a light inlet 11 at the top and a first light outlet 12 at the bottom;

[0026] The light inlet 11 faces upward, and its bottom is the first blind end 111; the light inlet 11 gradually narrows from the top opening to the bottom first blind end 111, and the inner wall surface of the light inlet 11 is the light inlet surface of the light guide lens 1.

[0027] The first light-emitting port 12 faces downwards, and its bottom is the second blind end 121; the first light-emitting port 12 gradually narrows from the top opening to the bottom second blind end 121; the inner wall surface of the first light-emitting port 12 is the first light-emitting surface of the light guide lens 1.

[0028] The second blind end 121 is located below the first blind end 111.

[0029] In this embodiment, the bottom wall of the light inlet 11 is responsible for collecting the light source, the first blind end 111 focuses the light source, and the wall of the first light outlet 12 is responsible for refracting and dispersing the light source, so as to achieve uniform dispersion of the LED light. In this embodiment, the light inlet 11 is designed to gradually converge from the top opening to the bottom, so that the first blind end 111 at the bottom is a point, which has a stronger ability to focus the light source than a plane, and can improve the utilization efficiency of LED light.

[0030] In an optional embodiment, the curvature of the light inlet 11 and / or the first light outlet 12 gradually increases from top to bottom.

[0031] In another optional embodiment, a second light-emitting port 13 is further provided at the bottom; the second light-emitting port 13 is an annular groove surrounding the first light-emitting port 12, and the annular inner wall surface of the annular groove near the first light-emitting port 12 is the second light-emitting surface of the light guide lens 1.

[0032] In another optional embodiment, the connecting surface between the second light-emitting surface and the first light-emitting surface is the third light-emitting surface 14 of the light guide lens 1; the third light-emitting surface 14 is a plane or a curved surface.

[0033] In another optional embodiment, the top edge of the light guide lens 1 is provided with a lug 15 for fixing the light guide lens 1.

[0034] In yet another optional embodiment, the light guide lens 1 is made of silicone.

[0035] Example 2

[0036] See Figures 1-4 This utility model discloses a device with a built-in LED lamp 2, including a PCB board 3 on which the LED lamp 2 is installed and a housing 4 with a light emission channel. The light emission channel is located below the LED lamp 2. It also includes a light guide lens 1 as described in Embodiment 1. The light guide lens 1 is located below the PCB board 3, and the light inlet 11 of the light guide lens 1 faces the LED lamp 2, and the light outlet of the light guide lens 1 faces the light emission channel.

[0037] In an optional embodiment, the inner wall portion of the housing 4 below the LED lamp 2 is provided with a plurality of light-emitting holes 41, which constitute the light-emitting channel.

[0038] In another optional embodiment, the light guide lens 1 is provided with a hanging ear 15 at its top edge, and an annular post 42 is provided on the inner wall of the housing 4 below the LED light 2, and the hanging ear is fastened to the annular post 42.

[0039] The contents disclosed in this utility model embodiment are merely preferred embodiments of this utility model and are only used to illustrate the technical solutions of this utility model, not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A light guide lens, characterized in that, It includes a light inlet located at the top and a first light outlet located at the bottom; The light inlet faces upwards, and its bottom is the first blind end; the light inlet gradually narrows from the top opening to the bottom first blind end, and the inner wall surface of the light inlet is the light-inlet surface of the light guide lens. The first light-emitting port faces downwards, and its bottom is the second blind end; the first light-emitting port gradually narrows from the top opening to the bottom second blind end; the inner wall surface of the first light-emitting port is the first light-emitting surface of the light guide lens. The second blind end is located below the first blind end.

2. The light guide lens according to claim 1, characterized in that, The curvature of the light inlet and / or the first light outlet gradually increases from top to bottom.

3. The light guide lens according to claim 1, characterized in that, It also includes a second light-emitting port located at the bottom; the second light-emitting port is an annular groove surrounding the first light-emitting port, and the annular inner wall surface of the annular groove near the first light-emitting port is the second light-emitting surface of the light guide lens.

4. The light guide lens according to claim 3, characterized in that, The interface between the second light-emitting surface and the first light-emitting surface is the third light-emitting surface of the light guide lens; the third light-emitting surface is a plane or a curved surface.

5. The light guide lens according to claim 1, characterized in that, The top edge of the light guide lens is provided with a hook for fixing the light guide lens.

6. A device with a built-in LED light, comprising a PCB board on which the LED light is mounted and a housing with a light emission channel, the light emission channel being located below the LED light, characterized in that, It also includes a light guide lens as described in any one of claims 1 to 5, wherein the light guide lens is disposed below the PCB board, and the light inlet of the light guide lens faces the LED lamp, and the light outlet of the light guide lens faces the light outlet channel.

7. The apparatus according to claim 6, characterized in that, The inner wall of the housing below the LED light is provided with multiple light-emitting holes, which constitute the light-emitting channel.

8. The apparatus according to claim 6, characterized in that, The light guide lens has a hanging ear at its top edge, and the inner wall of the housing below the LED light has an annular post, with the hanging ear fastened to the annular post.

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