LED (light-emitting diode) light source structure capable of efficiently condensing light

Abstract

The utility model discloses an efficient light-gathering LED light source structure which comprises a substrate and an LED lamp bead fixed on the substrate, the surface of the LED lamp bead is covered with a fluorescent coating, a total reflection layer is arranged on the substrate, the LED lamp bead is located in the total reflection layer, the total reflection layer is arranged to be in a revolving body shape with the central axis of the LED lamp bead as a revolving axis, and the LED lamp bead is located in the total reflection layer. The total reflection layer is used for reflecting light rays irradiated to the total reflection layer by the LED lamp beads to the fluorescent coating on the LED lamp beads, and a light emitting hole for emitting the light rays is formed in the upper end of the total reflection layer. Light emitted by the LED lamp beads is returned to the LED lamp beads through reflection of the total reflection layer, part of the light is emitted out through the light outlet holes, the light emitted out of the light outlet holes is enhanced through the continuous reflection effect, and the intensity of the emitted light is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED light source modules, in particular to a highly efficient light-collecting LED light source structure. Background Art

[0002] LEDs, or light-emitting diodes, are solid-state semiconductor devices that convert electrical energy into visible light. They offer numerous advantages, including compact size, long lifespan, high efficiency, energy conservation and environmental protection, pure and adjustable light color, moisture and vibration resistance, flexible dimensions, and safety and environmental friendliness. These characteristics have led to their widespread application and promotion in a variety of fields, including lighting, indicators, displays, decoration, and backlighting, making them a major trend in the future lighting sector.

[0003] LED light sources need to be focused when in use to concentrate light, reduce scattering, and improve lighting efficiency and light spot quality, thereby meeting specific lighting needs and achieving energy-saving and environmentally friendly effects. However, the focusing effect of existing LED light sources needs to be improved, and further focusing is needed to reduce scattering. Utility Model Content

[0004] The purpose of this utility model is to solve the above technical problems and provide a highly efficient focusing LED light source structure.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A high-efficiency focusing LED light source structure includes a substrate and LED lamp beads fixed on the substrate, the surface of the LED lamp beads is covered with a fluorescent coating, the substrate is provided with a total reflection layer, the LED lamp beads are located inside the total reflection layer, the total reflection layer is configured to be a rotating body with the central axis of the LED lamp beads as the rotation axis, the total reflection layer is used to reflect light irradiated by the LED lamp beads onto the total reflection layer to the fluorescent coating on the LED lamp beads, and the upper end of the total reflection layer is provided with a light outlet hole for light emission.

[0007] Furthermore, the total reflection layer is a silver-plated layer or a chrome-plated layer.

[0008] Furthermore, the total reflection layer is an arc-shaped rotating body, and the center of the arc is located at the LED lamp bead.

[0009] Furthermore, the total reflection layer is a rotating body of multiple curves, and the multiple curves include a first elliptical arc, a circular arc, and a second elliptical arc. The elliptical foci of the first elliptical arc coincide with those of the second elliptical arc. One of the foci of the first elliptical arc and the second elliptical arc is located at the LED lamp bead, and the center of the circular arc is located at the LED lamp bead.

[0010] Furthermore, a focusing cup is fixedly connected to the substrate, a focusing groove is defined in the focusing cup, the LED lamp beads are located in the focusing groove, and the total reflection layer is fixed on the inner wall of the focusing groove.

[0011] Furthermore, the focusing cup includes an upper lens and a lower lens, the upper lens and the lower lens are glued together to form an integral structure, and the interface between the upper lens and the lower lens is located at the widest part of the focusing groove cross section.

[0012] Furthermore, a transparent light-transmitting body is fixedly connected to the substrate, the total reflection layer covers the surface of the light-transmitting body, and the LED lamp beads are located at the bottom of the light-transmitting body.

[0013] Furthermore, the LED lamp beads are square surface light source structures.

[0014] Furthermore, the substrate is made of aluminum-based material.

[0015] The utility model provides an efficient focusing LED light source structure with the following beneficial effects: by adopting the above technical solution, a total reflection layer is provided on the substrate, and the multi-angle light emitted by the LED lamp bead is directed to the inner wall of the total reflection layer. After being reflected by the inner wall of the total reflection layer, the light is returned to the fluorescent coating of the LED lamp bead, so that the fluorescent coating converts the light energy into light, and part of the emitted light is returned to the LED lamp bead again, so that the light energy accumulates at the LED lamp bead and is emitted again, wherein part of the light is emitted through the light exit hole, and the reflected light is continuously reflected and then emitted from the light exit hole, and is superimposed with the light emitted from the light exit hole, so that the light emitted from the light exit hole is enhanced, and the concentrated light is formed and emitted from the light exit hole, thereby increasing the focusing effect and improving the intensity of the emitted light. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings:

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a high-efficiency focusing LED light source structure provided in the first embodiment of the present utility model;

[0018] Figure 2 This is a schematic cross-sectional view of a high-efficiency focusing LED light source structure provided in Example 1 of the present utility model;

[0019] Figure 3 This is a schematic structural diagram of a focusing cup in a high-efficiency focusing LED light source structure provided in Example 1 of the present utility model;

[0020] Figure 4 A schematic diagram of the light path in a high-efficiency focusing LED light source structure provided in Example 1 of the utility model;

[0021] Figure 5 A schematic cross-sectional view of a high-efficiency focusing LED light source structure provided in the second embodiment of the present invention;

[0022] Figure 6 A schematic diagram of the light path in a high-efficiency focusing LED light source structure provided in the second embodiment of the present utility model;

[0023] Figure 7 This is a schematic cross-sectional view of a high-efficiency focusing LED light source structure provided in the third embodiment of the present invention;

[0024] Figure 8 A schematic diagram of the light path in a high-efficiency focusing LED light source structure provided in the third embodiment of the present utility model;

[0025] Figure 9 A schematic cross-sectional view of a high-efficiency focusing LED light source structure provided in the fourth embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of the light path in a high-efficiency focusing LED light source structure provided in Example 4 of the present utility model.

[0027] Explanation of the numbers in the figure: 1. Substrate; 2. LED lamp beads; 3. Fluorescent coating; 4. Total reflection layer; 41. Light exit hole; 42. First elliptical arc; 43. Circular arc; 44. Second elliptical arc; 5. Focusing cup; 51. Focusing groove; 52. Upper lens; 53. Lower lens; 6. Translucent body. DETAILED DESCRIPTION

[0028] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] 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.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up-down-left-right-front-back...) are only used to explain the relative position relationship - movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0031] Example 1:

[0032] like Figure 1-Figure 4 As shown, a high-efficiency focusing LED light source structure includes a substrate 1 and LED lamp beads 2 fixed on the substrate 1, the surface of the LED lamp beads 2 is covered with a fluorescent coating 3, and the LED lamp beads 2 are a square surface light source structure; the substrate 1 is made of an aluminum-based material, and the good thermal conductivity of the aluminum-based material is utilized to facilitate heat dissipation; a total reflection layer 4 is provided on the substrate 1, and the LED lamp beads 2 are located inside the total reflection layer 4, and the total reflection layer 4 is configured to be a rotating body with the central axis of the LED lamp beads 2 as the rotation axis, and the total reflection layer 4 is used to reflect the light irradiated by the LED lamp beads 2 onto the total reflection layer to the fluorescent coating 3 on the LED lamp beads 2, and the upper end of the total reflection layer 4 is provided with a light outlet hole 41 for light emission.

[0033] By adopting the above technical solution, a total reflection layer 4 is provided on the substrate 1, and the multi-angle light emitted by the LED lamp bead 2 is directed to the inner wall of the total reflection layer 4. After being reflected by the inner wall of the total reflection layer 4, the light returns to the fluorescent coating 3 of the LED lamp bead 2, so that the fluorescent coating 3 converts the light energy into light, and part of the emitted light returns to the LED lamp bead 2 again, so that the light energy accumulates at the LED lamp bead 2 and is emitted again, wherein part of the light is emitted through the light exit hole 41, and the reflected light is continuously reflected and then emitted from the light exit hole 41, and is superimposed with the light emitted from the light exit hole 41, so that the light emitted from the light exit hole 41 is enhanced, and the concentrated light is emitted from the light exit hole 41, thereby increasing the focusing effect and improving the intensity of the emitted light.

[0034] Specifically, a focusing cup 5 is fixedly connected to the substrate 1. A focusing groove 51 is defined within the focusing cup 5, matching the shape of the total reflection layer 4. The LED lamp beads 2 are located within the focusing groove 51, and the total reflection layer 4 is fixed to the inner wall of the focusing groove 51. The focusing cup 5 provides an attachment for the total reflection layer 4, allowing light emitted by the LED lamp beads 2 to illuminate the total reflection layer 4 and be reflected back to the LED lamp beads 2. The focusing cup 5 includes an upper lens 52 and a lower lens 53, which are glued together to form an integral structure. The interface between the upper lens 52 and the lower lens 53 is located at the widest point of the cross-section of the focusing groove 51. This facilitates the demolding of the focusing groove 51 during the processing of the upper lens 52 and the lower lens 53.

[0035] The total reflection layer 4 is an arc-shaped body of revolution. It is a silver or chrome-plated layer vacuum-plated on the inner surface of the focusing groove 51. The center of the arc is located at the LED lamp bead 2. The total reflection layer 4, which is in the shape of a circular arc of revolution, reflects light from the LED lamp bead 2. Since the LED lamp bead 2 is located at the center of the circle, light that impinges on the total reflection layer 4 is reflected back to the LED lamp bead 2. The fluorescent coating 3 is located at the LED lamp bead 2, so that the reflected light impinges on the fluorescent coating 3, causing the fluorescent coating 3 to emit light. The light emitted from the total reflection layer 4 is returned to the fluorescent coating 3 and re-emitted. The light focused on the light exit hole 41 is emitted from the light exit hole 41, thereby enhancing the light concentration of the light emitted from the light exit hole 41.

[0036] Example 2:

[0037] like Figure 5-Figure 6 As shown, a high-efficiency focused LED light source structure differs from the first embodiment in that the total reflection layer 4 is a multi-curved body of revolution covering the inner wall of the focusing cup 5. The multi-curved layer includes a first elliptical arc 42, a circular arc 43, and a second elliptical arc 44. The foci of the first elliptical arc 42 and the second elliptical arc 44 coincide with each other. One of the foci of the first elliptical arc 42 and the second elliptical arc 44 is located at the LED lamp bead 2, and the center of the circular arc 43 is located at the LED lamp bead 2. With the LED lamp bead 2 positioned at the elliptical focal point, the light emitted by the LED lamp bead 2 encounters the elliptical and circular total reflection surfaces and is reflected to the fluorescent coating 3 on the LED lamp bead 2, causing the fluorescent coating 3 to emit light. The focused light is then emitted from the light exit hole 41.

[0038] Example 3:

[0039] like Figure 7-Figure 8 FIG. 1 shows a highly efficient, focused LED light source structure. This differs from Example 1 in that a transparent light-transmitting body 6 is fixedly attached to the substrate 1, the total reflection layer 4 covers the surface of the light-transmitting body 6, and the LED lamp beads 2 are located at the bottom of the light-transmitting body 6. The total reflection layer 4 is an arc-shaped body of revolution covering the outer surface of the light-transmitting body 6. The light-transmitting body 6 provides an attachment for the total reflection layer 4, allowing light emitted by the LED lamp beads 2 to pass through the light-transmitting body 6, illuminate the total reflection layer 4, and be reflected back to the LED lamp beads 2.

[0040] Example 4:

[0041] like Figure 9-10As shown, a high-efficiency focusing LED light source structure is different from the first embodiment in that: a transparent translucent body 6 is fixedly connected to the substrate 1, the total reflection layer 4 covers the surface of the translucent body 6, and the LED lamp bead 2 is located at the bottom of the translucent body 6; the total reflection layer 4 is a rotating body of multiple curves vacuum-plated on the surface of the translucent body 6, and the multiple curves include a first elliptical arc 42, a circular arc 43, and a second elliptical arc 44. The elliptical foci of the first elliptical arc 42 and the second elliptical arc 44 coincide with each other, one of the foci of the first elliptical arc 42 and the second elliptical arc 44 is located at the LED lamp bead 2, and the center of the circular arc 43 is located at the LED lamp bead 2.

[0042] The parts not involved in this technical solution can be implemented using existing technologies.

[0043] The above shows and describes the basic principles, main features, and characteristics of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention shall include the appended claims and their equivalents.

Claims

1. A highly efficient focusing LED light source structure, characterized by: The invention comprises a substrate (1) and an LED lamp bead (2) fixed on the substrate (1); the surface of the LED lamp bead (2) is covered with a fluorescent coating (3); a total reflection layer (4) is provided on the substrate (1); the LED lamp bead (2) is located inside the total reflection layer (4); the total reflection layer (4) is configured in the shape of a rotating body with the central axis of the LED lamp bead (2) as the rotation axis; the total reflection layer (4) is used to reflect light irradiated by the LED lamp bead (2) onto the total reflection layer to the fluorescent coating (3) on the LED lamp bead (2); and a light exit hole (41) for emitting light is provided at the upper end of the total reflection layer (4).

2. The high-efficiency focusing LED light source structure according to claim 1, characterized in that: The total reflection layer (4) is a silver-plated layer or a chromium-plated layer.

3. The high-efficiency focusing LED light source structure according to claim 1, characterized in that: The total reflection layer (4) is an arc-shaped rotating body, and the center of the arc is located at the LED lamp bead (2).

4. The high-efficiency focusing LED light source structure according to claim 1, characterized in that: The total reflection layer (4) is a body of revolution of multiple curves, wherein the multiple curves include a first elliptical arc (42), a circular arc (43), and a second elliptical arc (44); the elliptical foci of the first elliptical arc (42) and the second elliptical arc (44) coincide with each other; one of the foci of the first elliptical arc (42) and the second elliptical arc (44) is located at the LED lamp bead (2); and the center of the circular arc (43) is located at the LED lamp bead (2).

5. The high-efficiency focusing LED light source structure according to claim 3 or 4, characterized in that: A focusing cup (5) is fixedly connected to the substrate (1), a focusing groove (51) is provided in the focusing cup (5), the LED lamp beads (2) are located in the focusing groove (51), and the total reflection layer (4) is fixed on the inner wall of the focusing groove (51).

6. The high-efficiency focusing LED light source structure according to claim 5, characterized in that: The focusing cup (5) comprises an upper lens (52) and a lower lens (53), wherein the upper lens (52) and the lower lens (53) are glued together to form an integral structure, and the interface between the upper lens (52) and the lower lens (53) is located at the widest part of the cross section of the focusing groove (51).

7. The high-efficiency focusing LED light source structure according to claim 3 or 4, characterized in that: A transparent light-transmitting body (6) is fixedly connected to the substrate (1), the total reflection layer (4) covers the surface of the light-transmitting body (6), and the LED lamp beads (2) are located at the bottom of the light-transmitting body (6).

8. The high-efficiency focusing LED light source structure according to claim 1, characterized in that: The LED lamp bead (2) is a square surface light source structure.

9. The high-efficiency focusing LED light source structure according to claim 1, characterized in that: The substrate (1) is made of aluminum-based material.

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