High-luminous-efficiency LED light source with good light spot effect

Abstract

The utility model relates to the technical field of LEDs, and discloses a high-luminous-efficiency LED light source with a better light spot effect, which comprises a support, a luminous area is arranged on the support, a plurality of LED chips which are arranged at intervals are arranged in the luminous area, a top luminous surface is arranged at the top of each LED chip, a side luminous surface is arranged on the periphery of each LED chip, and a chip interval is arranged between every two adjacent LED chips. A plurality of light reflecting blocks are arranged in the chip intervals, the peripheries of the light reflecting blocks are provided with light reflecting surfaces, and the light reflecting surfaces are obliquely arranged outwards in the direction from top to bottom; the LED chips can be fixed firstly, then the reflective blocks are arranged, the LED chips can be distributed all over the whole light-emitting area, and the effect of good light spot effect is achieved; when the LED light source is used, light emitted by the side light-emitting surfaces can be reflected by the reflective surfaces and emitted outwards in a manner of deviating from the light-emitting areas, so that direct incidence of the side light-emitting surfaces of the adjacent LED chips is reduced, the light efficiency is greatly improved, and the problem of low light efficiency of the LED light source is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of LED, specifically, relate to the high light efficiency LED light source of better light spot effect. BACKGROUND

[0002] LED light source has small, long life, high efficiency and other advantages, is widely used in daily various illumination environment, and it becomes the mainstream in the illumination field.

[0003] LED light source includes the support, is equipped with a plurality of LED chips on the light emitting area of support, the top of LED chip has top light emitting surface, the outer periphery of LED chip has side light emitting surface, and the light emitting area is covered with fluorescent glue layer, in this way, the light emitted by the top light emitting surface of LED chip is irradiated outward after passing through the fluorescent glue layer.

[0004] In the prior art, the light emitted by the side light emitting surface of LED chip is horizontally emitted and cannot deviate from the light emitting area to emit outward, resulting in that the LED light source cannot realize high light efficiency, and the light emitted by the side light emitting surface is directly irradiated to the adjacent LED chip, so that the temperature of the LED light source is easily increased, greatly affecting the service life of the LED light source. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing high light efficiency LED light source of better light spot effect, aiming at solving the low light efficiency problem of LED light source in the prior art.

[0006] The utility model is realized in this way, high light efficiency LED light source of better light spot effect, including support, be equipped with light emitting area on the support, the light emitting area is equipped with a plurality of interval arrangement's LED chip, the top of LED chip has top light emitting surface, the outer periphery of LED chip has side light emitting surface, the adjacent LED chip between the LED chip has chip interval, the chip interval is equipped with a plurality of light reflection block, the outer periphery of light reflection block has light reflection surface, along from top to bottom direction, the light reflection surface is outwardly inclined arrangement.

[0007] Further, a plurality of light reflection blocks are sequentially and spacedly arranged along the length direction of the chip interval.

[0008] Further, along from bottom to top direction, the diameter size of the light reflection block gradually reduces, so that the light reflection surface is outwardly inclined arrangement.

[0009] Further, the top of the light reflection block protrudes above the light emitting area to form an arch portion, and the surface of the arch portion is arranged in an arc shape.

[0010] Furthermore, the bracket is provided with multiple light-emitting areas, each of which is provided with multiple LED chips. The multiple LED chips form multiple series structures that are independently arranged with each other. Each series structure includes multiple LED chips connected in series with each other. Each series structure includes at least one LED chip in each light-emitting area. The multiple series structures are arranged in parallel with each other.

[0011] Furthermore, the multiple LED chips connected in series are arranged in a staggered or adjacent manner.

[0012] Furthermore, multiple LED chips in the series structure are arranged in an alternating and mixed manner in the light-emitting area. All of the LED chips are square chips, and the multiple square chips are connected in series by conductive wires to form the series structure.

[0013] Furthermore, the bracket has an upward-protruding dam, which is arranged in a closed loop around the outer periphery of the light-emitting area. There is a gap between the LED chip and the dam. The inner periphery of the dam has a light-focusing surface facing the light-emitting area. Along the top-to-bottom direction, the light-focusing surface is inclined towards the light-emitting area.

[0014] Furthermore, the middle part of the bracket is recessed downward to form a recessed area, the bottom of the recessed area forms the light-emitting area, and the side of the recessed area has a light-concentrating surface facing the light-emitting area. Along the direction from bottom to top, the light-concentrating surface is arranged outward at an angle.

[0015] Furthermore, the light-emitting area is filled with a fluorescent adhesive layer, and the light emitted by the multiple LED chips is transmitted to the outside through the fluorescent adhesive layer. The outer periphery of the fluorescent adhesive layer is connected to the outer periphery of the dam. The outer periphery of the dam is provided with an inner groove, which is arranged around the outer periphery of the dam. The outer periphery of the fluorescent adhesive layer has an embedding section embedded in the dam, and the embedding section is embedded in the inner groove.

[0016] Compared with existing technologies, the high-efficiency LED light source with better light spot effect provided by this utility model can realize the first fixation of LED chips and then the arrangement of reflective blocks. Multiple LED chips can be distributed throughout the entire light-emitting area to achieve a good light spot effect. The light emitted from the side light-emitting surface can be reflected by the reflective surface and emitted outward away from the light-emitting area, reducing the direct illumination from the side light-emitting surfaces of adjacent LED chips, greatly improving the light efficiency and solving the problem of low light efficiency of LED light sources. Attached Figure Description

[0017] Figure 1 This is a top view of the high-efficiency LED light source with better light spot effect provided by this utility model;

[0018] Figure 2This is a side view sectional diagram of the support and dam provided by this utility model;

[0019] Figure 3 This is a side view sectional view of the bracket and recessed area provided by this utility model;

[0020] Figure 4 This is a schematic diagram of the working process of the LED chip and reflector provided by this utility model.

[0021] In the figure: bracket 10, light-emitting area 20, LED chip 30, reflector 40, fluorescent adhesive layer 50, series structure 60, dam 11, light-concentrating surface 12, recessed area 13, inner groove 14, top light-emitting surface 31, side light-emitting surface 32, light-emitting surface 41, arched part 42, embedded section 51. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] Reference Figures 1-4 The image shown is a preferred embodiment of the present invention.

[0026] A high-efficiency LED light source with good light spot effect includes a bracket 10. The bracket 10 is provided with a light-emitting area 20. The light-emitting area 20 is provided with a plurality of LED chips 30 arranged at intervals. The top of the LED chip 30 has a top light-emitting surface 31, and the outer periphery of the LED chip 30 has a side light-emitting surface 32. There are chip gaps between adjacent LED chips 30. A plurality of reflective blocks 40 are provided in the chip gaps. The outer periphery of the reflective blocks 40 has a reflective surface 41, and the reflective surface 41 is arranged outwardly along the top-to-bottom direction.

[0027] The high-efficiency LED light source with excellent light spot effect provided above can first fix the LED chip 30 and then arrange the reflector block 40. Multiple LED chips 30 can be distributed throughout the entire light-emitting area 20 to achieve a good light spot effect. The light emitted from the side light-emitting surface 32 can be reflected by the reflector surface 41 and emitted outward away from the light-emitting area 20, reducing the direct illumination from the side light-emitting surface 32 of adjacent LED chips 30, greatly improving the light efficiency and solving the problem of low light efficiency of LED light sources.

[0028] In this embodiment, multiple reflective blocks 40 are arranged at intervals along the length of the chip spacing. This allows the light emitted from the side-emitting surface 32 to be uniformly reflected by the reflective surface 41.

[0029] In this embodiment, the diameter of the reflective block 40 gradually decreases from bottom to top, so that the reflective surface 41 is arranged at an outward tilt. In this way, the direction of light reflected from the side light-emitting surface 32 can be controlled by the tilt angle of the reflective surface 41, which can more accurately improve the light-gathering effect.

[0030] In this embodiment, the top of the reflector 40 protrudes above the light-emitting area 20, forming an arched portion 42, the surface of which is arranged in an arc shape. This improves the luminous efficiency of the LED light source, and the arched portion 42 also provides some protection for the LED light source.

[0031] In this embodiment, the bracket 10 is provided with multiple light-emitting areas 20, each light-emitting area 20 is provided with multiple LED chips 30, the multiple LED chips 30 form multiple series structures 60 arranged independently of each other, the series structure 60 includes multiple LED chips 30 connected in series with each other, the series structure 60 includes at least one LED chip 30 in each light-emitting area 20, and the multiple series structures 60 are arranged in parallel with each other.

[0032] By utilizing multiple LED chips 30 to form multiple strings of independently arranged series structures 60, and each series structure 60 containing at least one LED chip 30 in each light-emitting area 20, the failure of a single series structure 60 will not affect the use of the LED light source; even if a single series structure 60 fails, it can still emit light uniformly, achieving a high-power and high-reliability effect, and also improving the utilization rate of the LED chips 30 in the series structure 60 by the LED light source.

[0033] When a fault occurs in a certain series structure 60, it will not affect the light emission of the LED light source.

[0034] Achievements: 1. When a single series structure 60 fails, it will not affect the use of the LED light source;

[0035] 2. Even if a single series structure 60 fails, it can still emit light uniformly, achieving a high-power and high-reliability effect.

[0036] In this embodiment, multiple LED chips 30 connected in series are arranged in a staggered or adjacent manner.

[0037] Multiple LED chips 30 in series structure 60 are arranged in an interleaved manner in the light-emitting area 20. All LED chips 30 are square chips, and the multiple square chips are connected in series by conductive wires to form the series structure 60.

[0038] In this way, even if a single series structure 60 fails, the LED chips 30 of the remaining series structures 60 can still emit light. Furthermore, because the LED chips 30 of the multiple series structures 60 are arranged in an interleaved and mixed manner, the LED light source can emit light uniformly, achieving a high-power and high-reliability effect.

[0039] In this embodiment, a dam 11 is provided on the support 10 with an upward protrusion. The dam 11 is arranged in a closed loop around the outer periphery of the light-emitting area 20. There is a gap between the LED chip 30 and the dam 11. The inner periphery of the dam 11 has a light-concentrating surface 12 facing the light-emitting area 20. Along the top-to-bottom direction, the light-concentrating surface 12 is arranged at an angle towards the light-emitting area 20.

[0040] The bracket 10 can reflect the light emitted from the side light-emitting surface 32 through the light-concentrating surface 12 arranged at an incline on the dam 11, and emit it outward away from the light-emitting area 20, thereby reducing the direct light emitted from the side light-emitting surface 32 of the adjacent LED chip 30 and greatly improving the light efficiency.

[0041] In this embodiment, the middle part of the bracket 10 is recessed downward to form a recessed area 13. The bottom of the recessed area 13 forms a light-emitting area 20. The side of the recessed area 13 has a light-concentrating surface 12 facing the light-emitting area 20. Along the direction from bottom to top, the light-concentrating surface 12 is arranged outward at an angle.

[0042] The bracket 10 can reflect the light emitted from the side light-emitting surface 32 through the light-concentrating surface 12 arranged at an angle on the recessed area 13, and emit it outward away from the light-emitting area 20, thereby reducing the direct light emitted from the side light-emitting surface 32 of the adjacent LED chip 30 and greatly improving the light efficiency.

[0043] In this embodiment, the light-emitting area 20 is filled with a fluorescent adhesive layer 50. The light emitted by the multiple LED chips 30 is transmitted to the outside through the fluorescent adhesive layer 50. The outer periphery of the fluorescent adhesive layer 50 is connected to the outer periphery of the dam 11. The outer periphery of the dam 11 is provided with an inner groove 14, which is arranged around the outer periphery of the dam 11. The outer periphery of the fluorescent adhesive layer 50 has an embedding section 51 embedded in the dam 11, and the embedding section 51 is embedded in the inner groove 14.

[0044] By embedding the fluorescent adhesive layer 50 into the inner groove 14 of the dam 11 through the embedding section 51, the fluorescent adhesive layer 50 can be firmly bonded to the dam 11 and fit together with the outer perimeter of the dam 11, thus providing better protection.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency LED light source with superior light spot effect, characterized in that, The device includes a support frame, on which a light-emitting area is provided. The light-emitting area is provided with a plurality of LED chips arranged at intervals. The top of each LED chip has a top light-emitting surface, and the outer periphery of each LED chip has a side light-emitting surface. There are chip gaps between adjacent LED chips. A plurality of reflective blocks are provided in the chip gaps. The outer periphery of each reflective block has a reflective surface, and the reflective surface is arranged at an outward tilt along a top-to-bottom direction. The bracket has an upward-protruding dam, which is arranged in a closed loop around the outer periphery of the light-emitting area. There is a gap between the LED chip and the dam. The inner periphery of the dam has a light-focusing surface facing the light-emitting area. Along the top-to-bottom direction, the light-focusing surface is inclined towards the light-emitting area.

2. The high-efficiency LED light source with superior light spot effect as described in claim 1, characterized in that, The plurality of reflective blocks are arranged sequentially at intervals along the length of the chip spacing.

3. The high-efficiency LED light source with superior light spot effect as described in claim 2, characterized in that, Along the bottom-up direction, the diameter of the reflective block gradually decreases so that the reflective surface is arranged at an outward tilt.

4. The high-efficiency LED light source with superior light spot effect as described in claim 3, characterized in that, The top of the reflective block protrudes above the light-emitting area, forming an arched portion, the surface of which is arranged in an arc shape.

5. The high-efficiency LED light source with superior light spot effect as described in claim 4, characterized in that, The bracket is provided with multiple light-emitting areas, each of which is provided with multiple LED chips. The multiple LED chips form multiple series structures that are independently arranged with each other. Each series structure includes multiple LED chips connected in series with each other. Each series structure includes at least one LED chip in each light-emitting area. The multiple series structures are arranged in parallel with each other.

6. The high-efficiency LED light source with superior light spot effect as described in claim 5, characterized in that, The LED chips, which are connected in series with each other, are arranged in a crisscrossing or adjacent interval.

7. The high-efficiency LED light source with superior light spot effect as described in claim 6, characterized in that, Multiple LED chips in the series structure are arranged in an alternating and mixed manner in the light-emitting area. All of the LED chips are square chips, and the multiple square chips are connected in series by conductive wires to form the series structure.

8. The high-efficiency LED light source with superior light spot effect as described in any one of claims 1 to 7, characterized in that, The middle part of the bracket is recessed downward to form a recessed area. The bottom of the recessed area forms the light-emitting area. The side of the recessed area has a light-focusing surface facing the light-emitting area. Along the direction from bottom to top, the light-focusing surface is arranged outward at an angle.

9. The high-efficiency LED light source with superior light spot effect as described in any one of claims 1 to 7, characterized in that, The light-emitting area is filled with a fluorescent adhesive layer. The light emitted by the multiple LED chips is transmitted to the outside through the fluorescent adhesive layer. The outer periphery of the fluorescent adhesive layer is connected to the outer periphery of the dam. The outer periphery of the dam is provided with an inner groove. The inner groove is arranged around the outer periphery of the dam. The outer periphery of the fluorescent adhesive layer has an embedding section embedded in the dam. The embedding section is embedded in the inner groove.

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