Small-angle high-illumination LED light source

Abstract

The utility model relates to the technical field of LED light sources, and discloses a small-angle high-illumination LED light source which comprises a substrate, a concave area is arranged on the substrate, a middle box dam which is annularly arranged is arranged in the concave area, a light-emitting area is defined by the middle box dam, and an LED chip is arranged in the light-emitting area. A peripheral side wall is arranged on the periphery of the sunken area, and an annular area is defined by the middle box dam and the peripheral side wall; the light-emitting area is filled with a fluorescent glue layer, the fluorescent glue layer covers the LED chip, the sunken area is filled with a light-transmitting glue layer, and the light-transmitting glue layer fills the annular area and covers the fluorescent glue layer; the middle box dam is arranged in the concave area, the light-emitting area is defined, the LED chips are arranged in the light-emitting area, only the light-emitting area is filled with the fluorescent glue layer, the multiple LED chips can be limited in the light-emitting area to emit light and irradiate by means of limitation of the middle box dam, the emitted light irradiates outwards through the fluorescent glue layer, and the small-angle and high-illumination irradiation effect is achieved.

Description

Technical Field

[0001] This utility model patent relates to the technical field of LED light sources, and more specifically, to a small-angle, high-illuminance LED light source. Background Technology

[0002] LED light sources are widely used in daily life. An LED light source includes a substrate on which multiple LED chips are set. A phosphor layer is covered on the substrate. The light emitted by the LED chips passes through the phosphor layer and shines outward.

[0003] In existing technologies, for certain occasions, such as stage lighting, when it is necessary to achieve small-angle illumination by LED light sources, it is often necessary to configure additional structures to achieve small-angle illumination by LED light sources, as it is difficult for a standalone LED light source to achieve small-angle illumination. Utility Model Content

[0004] The purpose of this invention is to provide a small-angle, high-illuminance LED light source, aiming to solve the problem that LED light sources in the prior art are difficult to achieve small-angle illumination.

[0005] This invention is achieved as follows: a small-angle, high-illuminance LED light source includes a substrate, on which a recessed area is provided, and a central dam arranged in a ring is provided in the recessed area, the central dam enclosing and forming a light-emitting area, in which an LED chip is provided; the outer periphery of the recessed area has an outer peripheral sidewall, and the central dam and the outer peripheral sidewall enclose and form a ring area.

[0006] The light-emitting area is filled with a fluorescent adhesive layer, which covers the LED chip. The recessed area is filled with a light-transmitting adhesive layer, which fills the annular area and covers the fluorescent adhesive layer.

[0007] Furthermore, the central dam is arranged in a closed ring.

[0008] Furthermore, the inner side of the central dam has an inner sidewall facing the light-emitting area, and the outer periphery of the fluorescent adhesive layer abuts against the inner sidewall.

[0009] Furthermore, along the height direction of the central dam, the inner sidewall is inclined away from the light-emitting area.

[0010] Furthermore, the outer periphery of the fluorescent adhesive layer abuts against the middle of the inner sidewall, the top of the fluorescent adhesive layer has an adhesive layer top surface, the adhesive layer top surface and the inner sidewall enclose a top gap area, and the light-transmitting adhesive layer is embedded in the top gap area to form an embedded part that is integrated with the fluorescent adhesive layer.

[0011] Furthermore, the top surface of the adhesive layer is concave, forming a concave shape.

[0012] Furthermore, the upper part of the central dam has an upper section extending above the fluorescent adhesive layer. The upper section has multiple gap areas. The fluorescent adhesive layer wraps around the upper section and is embedded in the gap areas, thus integrating with the central dam.

[0013] Furthermore, the plurality of said notch regions are arranged around the upper segment at circumferential intervals.

[0014] Furthermore, along the height direction of the recessed area, the outer peripheral sidewall is arranged inclined outwards away from the recessed area.

[0015] Furthermore, the outer periphery of the light-transmitting adhesive layer abuts against the outer peripheral sidewall, and the top of the light-transmitting adhesive layer has a light-transmitting top surface, which is convex upwards.

[0016] Compared with the prior art, the small-angle high-illuminance LED light source provided by this utility model forms a light-emitting area by arranging a central dam in the recessed area, placing LED chips in the light-emitting area, and filling only the light-emitting area with a fluorescent adhesive layer. By utilizing the restriction of the central dam, multiple LED chips can be confined to the light-emitting area to emit light, and the emitted light then shines outward through the fluorescent adhesive layer, achieving a small-angle high-illuminance illumination effect.

[0017] In addition, a light-transmitting adhesive layer is filled in the recessed area to cover the fluorescent adhesive layer and fill the annular area, which protects the entire recessed area and the fluorescent adhesive layer. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the small-angle high-illuminance LED light source provided by this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the small-angle, high-illuminance LED light source provided by this utility model. Detailed Implementation

[0020] 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.

[0021] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0022] 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 patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] Reference Figure 1-2 The image shown is a preferred embodiment of the present invention.

[0024] A small-angle, high-illuminance LED light source includes a substrate 100. The substrate 100 has a recessed area 101. A central dam 200 arranged in a ring is provided in the recessed area 101. The central dam 200 encloses and forms a light-emitting area 201. An LED chip 202 is provided in the light-emitting area 201. The outer periphery of the recessed area 101 has an outer peripheral sidewall 102. The central dam 200 and the outer peripheral sidewall 102 enclose and form a ring-shaped area.

[0025] The light-emitting area 201 is filled with a fluorescent adhesive layer 400, which covers the LED chip 202. The recessed area 101 is filled with a light-transmitting adhesive layer 300, which fills the annular area and covers the fluorescent adhesive layer 400.

[0026] The aforementioned small-angle high-illuminance LED light source forms a light-emitting area 201 by arranging a central dam 200 in the recessed area 101, placing LED chips 202 in the light-emitting area 201, and filling only the light-emitting area 201 with a phosphor layer 400. In this way, by utilizing the restriction of the central dam 200, multiple LED chips 202 can be confined to the light-emitting area 201 to emit light, and the emitted light then shines outward through the phosphor layer 400, achieving a small-angle high-illuminance illumination effect.

[0027] In addition, the recessed area 101 is filled with a light-transmitting adhesive layer 300, which covers the fluorescent adhesive layer 400 and fills the annular area, thus protecting the entire recessed area 101 and the fluorescent adhesive layer 400.

[0028] In this embodiment, the central dam 200 is arranged in a closed ring, which facilitates the arrangement of the fluorescent adhesive layer 400.

[0029] In this embodiment, the inner side of the central dam 200 has an inner sidewall 102 facing the light-emitting area 201, and the outer periphery of the fluorescent adhesive layer 400 abuts against the inner sidewall 102. Due to the restriction of the central dam 200, the fluorescent adhesive layer 400 can be formed by dispensing in the light-emitting area 201, and the fluorescent adhesive layer 400 directly abuts against the inner sidewall 102.

[0030] Along the height direction of the central dam 200, the inner sidewall 102 is inclined away from the light-emitting area 201. In this way, the light shining on the inner sidewall 102 can be reflected by the inner sidewall 102, which can improve the efficiency of the light shining outward, greatly improve the luminous efficiency of the LED light source, and further achieve a small-angle high-illuminance illumination effect.

[0031] In this embodiment, the outer periphery of the fluorescent adhesive layer 400 abuts against the middle of the inner sidewall 102, and the top of the fluorescent adhesive layer 400 has an adhesive layer top surface 401. The adhesive layer top surface 401 and the inner sidewall 102 enclose a top gap area, and the light-transmitting adhesive layer 300 is embedded in the top gap area to form an embedded part that is integrated with the fluorescent adhesive layer 400.

[0032] In this way, by forming a top spacer area, after the light-transmitting adhesive layer 300 is formed, the embedded part can be embedded in the top spacer area and integrated with the fluorescent adhesive layer 400, making the overall structure more stable.

[0033] In this embodiment, the top surface 401 of the adhesive layer is concave downwards, which facilitates the embedding part being embedded in the top spacer area.

[0034] In this embodiment, the upper part of the central dam 200 has an upper section extending above the fluorescent adhesive layer 400. The upper section has multiple gap areas. The fluorescent adhesive layer 400 wraps the upper section and is embedded in the gap areas, thus integrating with the central dam 200.

[0035] In this way, by forming multiple gap areas, the bond between the light-transmitting adhesive layer 300 and the central dam 200 can be made more stable.

[0036] In this embodiment, multiple gap areas are arranged around the upper section at circumferential intervals, thus achieving full circumferential bonding between the light-transmitting adhesive layer 300 and the central dam 200.

[0037] In this embodiment, along the height direction of the recessed area 101, the outer peripheral sidewall 102 is arranged inclined outward from the recessed area 101. In this way, some of the light that shines on the outer peripheral sidewall 102 can be reflected by the outer peripheral sidewall 102 and then shine through the light-transmitting adhesive layer 300, which greatly improves the luminous efficiency of the LED light source.

[0038] In this embodiment, the outer periphery of the light-transmitting adhesive layer 300 abuts against the outer peripheral sidewall 102, and the top of the light-transmitting adhesive layer 300 has a light-transmitting top surface 301, which is convex upwards. In this way, the convex shape of the light-transmitting top surface 301 can protect the entire LED light source.

[0039] 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 small-angle, high-illuminance LED light source, characterized in that, The device includes a substrate, on which a recessed area is provided, and a central dam arranged in a ring is provided in the recessed area. The central dam encloses and forms a light-emitting area, in which an LED chip is provided; the outer periphery of the recessed area has an outer peripheral sidewall, and the central dam and the outer peripheral sidewall enclose and form a ring-shaped area. The light-emitting area is filled with a fluorescent adhesive layer, which covers the LED chip. The recessed area is filled with a light-transmitting adhesive layer, which fills the annular area and covers the fluorescent adhesive layer.

2. The small-angle high-illuminance LED light source as described in claim 1, characterized in that, The central dam is arranged in a closed ring.

3. The small-angle high-illuminance LED light source as described in claim 1, characterized in that, The inner side of the central dam has an inner sidewall facing the light-emitting area, and the outer periphery of the fluorescent adhesive layer abuts against the inner sidewall.

4. The small-angle high-illuminance LED light source as described in claim 3, characterized in that, Along the height direction of the central dam, the inner sidewall is inclined away from the light-emitting area.

5. The small-angle high-illuminance LED light source as described in claim 3, characterized in that, The outer periphery of the fluorescent adhesive layer abuts against the middle of the inner sidewall. The top of the fluorescent adhesive layer has a top surface, and the top surface of the adhesive layer and the inner sidewall enclose a top gap area. The light-transmitting adhesive layer is embedded in the top gap area to form an embedded part that is integrated with the fluorescent adhesive layer.

6. The small-angle high-illuminance LED light source as described in claim 5, characterized in that, The top surface of the adhesive layer is concave, forming a concave shape.

7. The small-angle high-illuminance LED light source as described in claim 5, characterized in that, The upper part of the central dam has an upper section extending above the fluorescent adhesive layer. The upper section has multiple gap areas. The fluorescent adhesive layer wraps around the upper section and is embedded in the gap areas, thus integrating with the central dam.

8. The small-angle high-illuminance LED light source as described in claim 7, characterized in that, The multiple gap regions are arranged around the upper section at circumferential intervals.

9. The small-angle high-illuminance LED light source according to any one of claims 1 to 8, characterized in that, Along the height direction of the recessed area, the outer peripheral sidewall is arranged inclined outward from the recessed area.

10. The small-angle high-illuminance LED light source according to any one of claims 1 to 8, characterized in that, The outer periphery of the light-transmitting adhesive layer abuts against the outer periphery sidewall, and the top of the light-transmitting adhesive layer has a light-transmitting top surface, which is convex upwards.

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