LED light source with high luminous efficiency and high illumination

Abstract

The utility model relates to the technical field of LED light sources, and discloses a high-luminous-efficiency and high-illumination LED light source which comprises a substrate, the substrate is provided with a luminous area, the luminous area is provided with a plurality of LED chips, the luminous area is covered with a fluorescent layer, light emitted by the LED chips is transmitted to the outside through the fluorescent layer, the fluorescent layer is covered with an adhesive layer, and the adhesive layer protrudes upwards and is in a protruding shape. According to the LED light source, the LED chips can enable the light source to achieve high light efficiency through the fluorescent layer, then the protruding glue layer is used for enabling the light source to irradiate in a concentrated mode, the high light efficiency and high illumination effect of the LED light source is achieved, and the problem that the light efficiency of the LED light source is low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED light sources, in particular to an LED light source with high light efficiency and high illumination. Background Art

[0002] The emergence of LED light sources has brought a lot of brightness to people's lives. LED light sources have the advantages of long life, low power consumption, and green environmental protection.

[0003] The LED light source includes a substrate and a plurality of LED chips arranged on the substrate. The LED chip is in a cubic shape, and its bottom is fixed on the light-emitting area. The outer periphery of the LED chip has a side light-emitting surface, and the top of the LED chip has a top light-emitting surface. Both the side light-emitting surface and the top light-emitting surface can emit light.

[0004] In the prior art, the light emitted from the top light emitting surface is emitted outward, and the light emitted from the side light emitting surface is emitted horizontally and cannot be irradiated to the outside, resulting in low light efficiency of the LED light source. Utility Model Content

[0005] The utility model aims to provide an LED light source with high light efficiency and high illumination, aiming to solve the problem of low light efficiency of LED light sources in the prior art.

[0006] The utility model is implemented as follows: a high-light-efficiency and high-illuminance LED light source comprises a substrate, the substrate has a light-emitting area, the light-emitting area is provided with a plurality of LED chips, the light-emitting area is covered with a fluorescent layer, the light emitted by the plurality of LED chips is transmitted to the outside through the fluorescent layer, the fluorescent layer is covered with a glue layer, and the glue layer is raised upward in a convex shape.

[0007] Furthermore, the bottom of the adhesive layer abuts against the substrate, and the top of the adhesive layer extends upward away from the substrate.

[0008] Furthermore, the diameter of the adhesive layer gradually decreases from bottom to top, and the adhesive layer and the LED chip are arranged opposite to each other in the longitudinal direction.

[0009] Furthermore, a dam is protruded upward on the substrate, and the dam is arranged in a closed loop around the outer periphery of the light-emitting area, and there is a gap between the LED chip and the dam.

[0010] Furthermore, the outer periphery of the fluorescent layer is butted against the dam, and the adhesive layer covers the dam.

[0011] Furthermore, the periphery of the adhesive layer goes over the top of the dam, along the periphery of the dam, and wraps the periphery of the dam, so that the adhesive layer and the dam form an integral structure.

[0012] Furthermore, a reflective layer facing the LED chip is provided on the inner side of the dam, and the reflective layer is arranged around the inner side wall of the dam.

[0013] Furthermore, the reflective layer is arranged in an inclined manner from bottom to top, away from the LED chip.

[0014] Furthermore, an annular groove is provided on the outer periphery of the dam, and the annular groove is arranged around the circumference of the dam. The adhesive layer has a wrapping section wrapped around the outer periphery of the dam, and the wrapping section is embedded in the annular groove.

[0015] Furthermore, the LED light source is a 5050MOD-LED light source.

[0016] Compared with the prior art, the utility model provides a high-light-efficiency and high-illuminance LED light source. The LED chip can achieve high light efficiency through the fluorescent layer, and then the raised glue layer can be used to allow the light source to irradiate in a concentrated manner, thereby achieving the high-light-efficiency and high-illuminance effect of the LED light source, and solving the problem of low light efficiency of the LED light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the top view of the structure of the LED light source with high light efficiency and high illumination provided by the utility model;

[0018] Figure 2 It is a side view structural schematic diagram of a high-light-efficiency and high-illuminance LED light source provided by the utility model.

[0019] In the figure: a substrate 10 , an LED chip 20 , a fluorescent layer 30 , an adhesive layer 40 , a dam 50 , a light emitting area 11 , a wrapping section 41 , a reflective layer 51 , and an annular groove 52 . DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0022] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present utility model. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] Reference Figure 1-2 As shown, it is a preferred embodiment provided by the utility model.

[0024] A high-light-efficiency and high-illuminance LED light source includes a substrate 10, the substrate 10 has a light-emitting area 11, the light-emitting area 11 is provided with a plurality of LED chips 20, the light-emitting area 11 is covered with a fluorescent layer 30, the light emitted by the plurality of LED chips 20 is transmitted to the outside through the fluorescent layer 30, the fluorescent layer 30 is covered with a glue layer 40, and the glue layer 40 is convex upward.

[0025] The high-efficiency and high-illuminance LED light source provided above, the LED chip 20 can achieve high light efficiency through the fluorescent layer 30, and then use the raised glue layer 40 to allow the light source to irradiate in a concentrated manner, thereby achieving the high-efficiency and high-illuminance effect of the LED light source, solving the problem of low light efficiency of the LED light source.

[0026] In this embodiment, the bottom of the adhesive layer 40 abuts against the substrate 10, and the top of the adhesive layer 40 extends upward away from the substrate 10. In this way, the top of the substrate 10 will not hinder the adhesive layer 40 from transmitting the light emitted by the LED chip 20 in a concentrated manner, thereby achieving high illumination of the light.

[0027] In this embodiment, the diameter of the adhesive layer 40 gradually decreases from bottom to top, and the adhesive layer 40 and the LED chip 20 are arranged vertically opposite to each other. In this way, the adhesive layer 40 can transmit the light emitted by the LED chip 20 in a concentrated manner to achieve high light efficiency and high illumination effect.

[0028] In this embodiment, a dam 50 is protruded upward on the substrate 10, and the dam 50 is arranged in a closed loop around the outer periphery of the light-emitting area 11, and there is a gap between the LED chip 20 and the dam 50. In this way, the dam 50 prevents the fluorescent layer 30 from overflowing the substrate 10, thereby increasing the protection of the LED chip 20 and the fluorescent layer 30.

[0029] In this embodiment, the periphery of the fluorescent layer 30 is butted against the dam 50, and the adhesive layer 40 covers the dam 50. In this way, the coverage of the adhesive layer 40 on the fluorescent layer 30 can be increased, so that the adhesive layer 40 can transmit the light in the fluorescent layer 30 in a concentrated manner, thereby achieving a high light efficiency and high illumination effect of the light source.

[0030] In this embodiment, the periphery of the adhesive layer 40 goes over the top of the dam 50, along the periphery of the dam 50, and wraps the periphery of the dam 50. In this way, the adhesive layer 40 structure can be firmly combined with the dam 50, and the adhesive layer 40 is in contact with the periphery of the dam 50, so as to provide better protection.

[0031] The adhesive layer 40 and the dam 50 form an integral structure.

[0032] In this embodiment, a reflective layer 51 facing the LED chip 20 is provided on the inner side of the dam 50, and the reflective layer 51 is arranged around the inner side wall of the dam 50. In this way, the reflective layer 51 can not only reflect the light emitted by the side light-emitting surface of the LED chip 20, but also greatly improve the light efficiency of the LED light source.

[0033] In this embodiment, the reflective layer 51 is arranged in an inclined shape from bottom to top away from the LED chip 20. In this way, the reflective layer 51 can better reflect light into the fluorescent layer 30.

[0034] In this embodiment, an annular groove 52 is provided on the outer periphery of the dam 50, and the annular groove 52 is arranged around the circumference of the dam 50. The adhesive layer 40 has a wrapping section 41 wrapped around the outer periphery of the dam 50, and the wrapping section 41 is embedded in the annular groove 52. In this way, the adhesive layer 40 and the dam 50 can be more firmly combined and have better integrity.

[0035] The LED light source is 5050MOD-LED light source.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. High light efficiency and high illumination LED light source, characterized by: It includes a substrate, which has a light-emitting area. The light-emitting area is provided with a plurality of LED chips. The light-emitting area is covered with a fluorescent layer. Light emitted by the plurality of LED chips is transmitted to the outside through the fluorescent layer. The fluorescent layer is covered with a glue layer, which is convex upward.

2. The high-light-efficiency and high-illuminance LED light source according to claim 1, characterized in that: The bottom of the adhesive layer abuts against the substrate, and the top of the adhesive layer extends upward away from the substrate.

3. The high-light-efficiency and high-illuminance LED light source according to claim 2, characterized in that: The diameter of the adhesive layer gradually decreases from bottom to top, and the adhesive layer and the LED chip are arranged opposite to each other in the longitudinal direction.

4. The high light efficiency and high illumination LED light source according to any one of claims 1 to 3, characterized in that: A dam is protruded upward on the substrate, and the dam is arranged in a closed loop around the outer periphery of the light-emitting area, and there is a gap between the LED chip and the dam.

5. The high-light-efficiency and high-illuminance LED light source as claimed in claim 4, characterized in that: The outer periphery of the fluorescent layer is butted against the dam, and the adhesive layer covers the dam.

6. The high-light-efficiency and high-illuminance LED light source as claimed in claim 5, characterized in that: The outer periphery of the adhesive layer passes over the top of the dam, extends along the outer periphery of the dam, and wraps the outer periphery of the dam, so that the adhesive layer and the dam form an integral structure.

7. The high light efficiency and high illumination LED light source as claimed in claim 6, characterized in that: A reflective layer facing the LED chip is arranged on the inner side of the dam, and the reflective layer is arranged around the inner side wall of the dam.

8. The high light efficiency and high illumination LED light source as claimed in claim 7, characterized in that: The reflective layer is arranged in an inclined shape from bottom to top away from the LED chip.

9. The high light efficiency and high illumination LED light source as claimed in claim 6, characterized in that: An annular groove is arranged around the outer periphery of the dam, and the annular groove is arranged along the circumference of the dam. The adhesive layer has a wrapping section wrapped around the outer periphery of the dam, and the wrapping section is embedded in the annular groove.

10. The high light efficiency and high illumination LED light source as claimed in claim 8, characterized in that: The LED light source is a 5050MOD-LED light source.

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