Novel LED luminescent device

Abstract

The utility model discloses a novel LED light-emitting device which comprises a support, the top of the support is provided with an opening, an LED chip is installed at the bottom of the inner side of the support, a transparent cover is arranged on the outer side of the LED chip in a covering mode, a reflection cavity is formed in the inner side of the transparent cover, a refraction plate is installed on the top of the reflection cavity, and the refraction plate is arranged on the top of the reflection cavity. A side light reflecting layer is arranged on the inner side wall of the support, a bottom light reflecting layer is arranged at the bottom of the support, a lens is arranged at the top of the transparent cover, a ceramic heat dissipation plate is arranged at the bottom of the support and below the LED chip, and light uniformizing micro protrusions are arranged at the top of the transparent cover. The LED lamp is convenient to use, good in heat dissipation effect and good in light emitting effect, light emitted by the LED chip is emitted after being reflected and refracted for multiple times, emitted light is more uniform and more concentrated, the brightness is higher, the emitted light easily achieves the preset effect, the condition of an object can be clearly illuminated, and the consumer experience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of LEDs, in particular to a novel LED light-emitting device. Background Art

[0002] LED light-emitting devices are a type of light-emitting device that can directly convert electrical energy into visible light. They have the advantages of high efficiency, low power consumption, long life, high luminous quality, pure light color, high reliability, low driving voltage, and a strong structure. With the advancement of science and technology and the improvement of people's living standards, LED light-emitting devices are becoming more and more widely used. However, the LED lamps currently on the market generally use LED light-emitting devices as light sources, and then add focusing reflectors, lenses, etc. to improve the lighting effect. However, this makes the LED lamp larger, and the installation accuracy of the focusing reflectors and lenses cannot be guaranteed, causing the light propagation path to deviate from the optimal propagation path of the initial design, resulting in excessive dispersion of the emitted light and the inability to illuminate objects clearly. The emitted light cannot achieve the intended effect, resulting in a poor consumer experience. Therefore, in order to avoid the shortcomings of the existing technology, it is necessary to improve the existing technology. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and to provide a new type of LED light emitting device which is easy to use and has good light output effect.

[0004] The utility model is realized through the following technical solutions:

[0005] A novel LED light-emitting device includes a bracket, the top of the bracket is open, an LED chip is installed at the bottom of the inner side of the bracket, a transparent cover is provided on the outer side of the LED chip, a reflective cavity is provided on the inner side of the transparent cover, a refraction plate is installed on the top of the reflective cavity, the inner side wall of the bracket is provided with a side reflective layer, the bottom of the bracket is provided with a bottom reflective layer, and a lens is provided on the top of the transparent cover.

[0006] Furthermore, the top of the lens is arranged in an arc shape.

[0007] Furthermore, a phosphor film is provided on the top of the LED chip.

[0008] Furthermore, a fluorescent material layer is provided at the bottom of the refraction plate.

[0009] Furthermore, a ceramic heat sink is provided at the bottom of the bracket, and the ceramic heat sink is provided below the LED chip.

[0010] Furthermore, a light-uniform micro-protrusion is provided on the top of the transparent cover.

[0011] Furthermore, the light-homogenizing micro-protrusions are regular quadrilateral light-homogenizing micro-protrusions or regular hexagonal light-homogenizing micro-protrusions.

[0012] Furthermore, an arc-shaped groove is provided in the middle of the top of the lens.

[0013] Furthermore, the LED chip is a flip-chip LED chip.

[0014] Furthermore, a dam glue covering the side of the LED chip is provided on the inner side of the bottom of the bracket, and the bottom reflective layer is provided on the top of the dam glue.

[0015] Compared with the prior art, the present invention provides a transparent cover through the outer cover of the LED chip, a reflective cavity is provided on the inner side of the transparent cover, a refraction plate is installed on the top of the reflective cavity, the inner side wall of the bracket is provided with a side reflective layer, the bottom of the bracket is provided with a bottom reflective layer, and the top of the transparent cover is provided with a lens, so that the structure of the LED light-emitting device is simple, the LED lamp does not need to be additionally equipped with a focusing reflective cup and a lens, and the volume of the LED lamp is reduced. The light emitted by the LED chip is fully reflected by the reflective cavity, the side reflective layer and the bottom reflective layer, and is refracted by the refraction plate, the transparent cover and the lens before being emitted, so that the light illumination is more uniform, more concentrated, and the brightness is higher. The light propagation path will not deviate from the optimal propagation path of the initial design, and the object can be clearly illuminated. The emitted light can easily achieve the predetermined effect, and the consumer experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of the new LED light-emitting device of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the new transparent cover of the utility model.

[0019] In the figure: 1- bracket; 2-LED chip; 3-transparent cover; 4-reflection cavity; 5-refractive plate; 6-side reflective layer; 7-bottom reflective layer; 8-lens; 9-phosphor film; 10-fluorescent material layer; 11-ceramic heat sink; 12-light uniforming micro-protrusion; 13-arc-shaped groove; 14-dam glue. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 2 The utility model is a new type of LED light-emitting device, including a bracket 1, the top of the bracket 1 is open, an LED chip 2 is installed at the bottom inside the bracket 1, the outer cover of the LED chip 2 is provided with a transparent cover 3, the inner side of the transparent cover 3 is provided with a reflective cavity 4, the top of the reflective cavity 4 is installed with a refraction plate 5, the inner side wall of the bracket 1 is provided with a side reflective layer 6, the bottom of the bracket 1 is provided with a bottom reflective layer 7, and the top of the transparent cover 3 is provided with a lens 8. A transparent cover 3 is provided through the outer cover of the LED chip 2, a reflecting cavity 4 is provided on the inner side of the transparent cover 3, a refraction plate 5 is installed on the top of the reflecting cavity 4, a side reflective layer 6 is provided on the inner wall of the bracket 1, a bottom reflective layer 7 is provided on the bottom of the bracket 1, and a lens 8 is provided on the top of the transparent cover 3, which makes the structure of the LED light-emitting device simple, and the LED lamp does not need to be additionally equipped with a focusing reflective cup and a lens, thereby reducing the volume of the LED lamp. The light emitted by the LED chip 2 is fully reflected by the reflecting cavity 4, the side reflective layer 6 and the bottom reflective layer 7, and is refracted by the refraction plate 5, the transparent cover 3 and the lens 8 before being emitted, making the light illumination more uniform, more concentrated and brighter. The light propagation path will not deviate from the optimal propagation path of the initial design, and can clearly illuminate the object. The emitted light can easily achieve the predetermined effect, and the consumer experience is good.

[0022] The top of the lens 8 is arranged in an arc shape, so that the light-emitting angle of the LED light-emitting device is larger and the light is more uniform.

[0023] A phosphor film 9 is provided on the top of the LED chip 2, and the phosphor film 9 is used to change the color of light.

[0024] A fluorescent material layer 10 is provided at the bottom of the refraction plate 5 to further uniformly control the color of the light.

[0025] A ceramic heat sink 11 is provided at the bottom of the bracket 1 and is provided below the LED chip 2. The ceramic heat sink 11 promptly conducts away the heat emitted by the LED chip 2 during operation, thereby improving the heat dissipation effect and service life of the LED light-emitting device.

[0026] The top of the transparent cover 3 is provided with a light-uniform micro-protrusion 12 to make the light emission more uniform, reduce the loss of light intensity, and improve the intensity of the irradiated light beam formed after emission.

[0027] In a specific implementation, the light-homogenizing micro-protrusions 12 are regular quadrilateral light-homogenizing micro-protrusions or regular hexagonal light-homogenizing micro-protrusions, which make light emission more uniform and improve the light beam intensity.

[0028] An arc-shaped groove 13 is provided in the middle of the top of the lens 8, so that the light emitted from the middle of the lens 8 is more concentrated and the illumination brightness is higher.

[0029] As a specific implementation, the LED chip 2 is a flip-chip LED chip, and there is no chip electrode and welding lead blocking the light-emitting surface, so the LED light-emitting device emits light more evenly.

[0030] A dam glue 14 covering the side of the LED chip 2 is provided on the inner side of the bottom of the bracket 1 , and the bottom reflective layer 7 is provided on the top of the dam glue 14 to facilitate the fixed installation of the LED chip 2 .

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new type of LED light emitting device, characterized in that: The invention comprises a bracket, the top of the bracket is opened, an LED chip is installed at the bottom of the inner side of the bracket, a transparent cover is provided on the outer side of the LED chip, a reflective cavity is provided on the inner side of the transparent cover, a refraction plate is installed on the top of the reflective cavity, a side reflective layer is provided on the inner side wall of the bracket, a bottom reflective layer is provided at the bottom of the bracket, and a lens is provided on the top of the transparent cover.

2. The novel LED light emitting device according to claim 1, characterized in that: The top of the lens is arranged in an arc shape.

3. The novel LED light emitting device according to claim 1, characterized in that: A phosphor film is provided on the top of the LED chip.

4. The novel LED light emitting device according to claim 1, characterized in that: A fluorescent material layer is provided on the bottom of the refraction plate.

5. The novel LED light emitting device according to claim 1, characterized in that: A ceramic heat sink is provided at the bottom of the bracket, and the ceramic heat sink is provided below the LED chip.

6. The novel LED light emitting device according to claim 1, characterized in that: The top of the transparent cover is provided with a light-uniform micro-protrusion.

7. The novel LED light emitting device according to claim 6, characterized in that: The light-homogenizing micro-protrusions are regular quadrilateral light-homogenizing micro-protrusions or regular hexagonal light-homogenizing micro-protrusions.

8. The novel LED light emitting device according to claim 1, characterized in that: An arc-shaped groove is provided in the middle of the top of the lens.

9. The novel LED light emitting device according to claim 1, characterized in that: The LED chip is a flip-chip LED chip.

10. The novel LED light emitting device according to claim 1, characterized in that: A dam glue covering the side of the LED chip is provided on the inner side of the bottom of the bracket, and the bottom reflective layer is provided on the top of the dam glue.

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