High-condensation light-emitting diode (LED) spotlight

Abstract

A circuit board is installed on a heat dissipation base, LED lamp beads are installed on the circuit board, a high-condensation-rate spotlight lens is installed above the LED lamp beads, a lamp cover is installed on the high-condensation-rate spotlight lens, and the outer surface of the high-condensation-rate spotlight lens is a full reflective mirror face. And titanium dioxide coatings are coated on the outer surfaces of the radiating seat, the lamp cover and the full-reflective mirror surface. Heat generated by the LED lamp is utilized to activate the titanium dioxide coating to decompose indoor acetaldehyde and formaldehyde, and indoor air pollutants are converted into harmless compounds.

Description

Technical Field

[0001] The invention relates to the technical field of lighting, and in particular to a high-focus LED spotlight. Background Art

[0002] LED (Light-Emitting-Diode) is a semiconductor that can convert electrical energy into light energy. It changes the principle of tungsten filament light emission of incandescent lamps and three-primary color powder light emission of energy-saving lamps, and adopts electric field light emission. The luminous efficiency of LED is currently only 100lm / W, and its electro-optical conversion efficiency is only about 20~30%. In other words, about 70% of the electrical energy is converted into heat energy. LED heating is caused by two factors: 1. The internal quantum efficiency is not high, that is, when electrons and holes recombine, photons cannot be generated 100%, which is usually called "current leakage" and reduces the recombination rate of carriers in the PN region. The leakage current multiplied by the voltage is the power of this part, which is converted into heat energy, but this part does not account for the main component because the internal photon efficiency is now close to 90%.

[0003] 2. The photons generated internally cannot all be emitted to the outside of the chip and are finally converted into heat. This part is the main one, because currently this so-called external quantum efficiency is only about 30%, and most of it is converted into heat.

[0004] At present, in order to solve the heat dissipation problem of LED lamps, heat dissipation devices are generally used to dissipate heat, and the heat generated by the LED is not utilized. Summary of the invention

[0005] In view of this, the present invention proposes a high-concentration LED spotlight, which utilizes the heat generated by the LED lamp to activate the titanium dioxide coating to decompose indoor acetaldehyde and formaldehyde, and convert indoor air pollutants into harmless compounds.

[0006] On the one hand, the present invention provides a high-concentration LED spotlight, wherein a circuit board is installed on a heat sink, LED lamp beads are installed on the circuit board, a high-concentration spotlight lens is installed above the LED lamp beads, a lamp cover is installed on the high-concentration spotlight lens, the outer surface of the high-concentration spotlight lens is a full-reflective mirror, and a titanium dioxide coating is coated on the outer surfaces of the heat sink, the lamp cover and the full-reflective mirror.

[0007] In a further technical solution, platinum metal elements are contained in the titanium dioxide coating.

[0008] In order to obtain better brightness and uniformity of the light spot, in a further technical solution, a high-concentration spotlight lens includes a main body, a cup cavity with a larger upper portion and a smaller lower portion is opened inside the main body, a groove is opened at the bottom of the main body, the inner surface of the cup cavity is the light emitting surface, and the inner surface of the groove is the light incident surface; the bottom of the cup cavity is a first spherical surface, the first spherical surface protrudes upward, and the inner wall of the cup cavity is provided with concentric serrated rings, and the diameter of the concentric serrated rings decreases from top to bottom.

[0009] In a further technical solution, the upper surface of the concentric serrated ring is a second spherical surface, the diameter of the second spherical surface decreases from top to bottom, and the first spherical surface and the second spherical surface have the same center.

[0010] In a further technical solution, the side surface of the concentric serrated ring is a vertical surface, and the angle between the vertical surface and the second spherical surface is an acute angle.

[0011] In order to realize intelligent dimming control, a further technical solution includes a controller, a power module, an LED dimming drive module, a Bluetooth communication module, a microwave radar sensing module, and an illumination sensor. The power module supplies power to the controller, the LED dimming drive module, the Bluetooth communication module, the microwave radar sensing module, the illumination sensor, and the LED lamp beads; the LED dimming drive module is connected to the LED lamp beads, the Bluetooth communication module, the microwave radar sensing module, and the illumination sensor are connected to the input end of the controller, and the LED dimming drive module is connected to the output end of the controller; the microwave radar sensing module senses the approach or distance of a moving object through changes in reflected waves, the LED dimming drive module is used to adjust the color temperature and brightness of the LED lamp beads, the Bluetooth communication module is used to remotely control the switch, brightness, and color temperature of the LED lamp beads, and the illumination sensor is used to sense the ambient light illumination; the controller controls the switch, brightness, and color temperature of the LED lamp beads through the LED dimming drive module according to the microwave radar sensing module signal, the Bluetooth communication module signal, and the illumination sensor signal.

[0012] In a further technical solution, a microwave radar sensing dimming mode is included. When the illuminance sensor senses that the ambient light illumination is lower than a preset illuminance value, the microwave radar sensing dimming mode is turned on. When the illuminance sensor senses that the ambient light illumination is higher than a preset illuminance value, the microwave radar sensing dimming mode is turned off. The microwave radar sensing dimming mode includes: when the microwave radar sensing module senses that a moving object is approaching, the controller controls the LED lamp beads to light up slowly through the LED dimming drive module; when the microwave radar sensing module senses that the moving object is moving away, the controller controls the LED lamp beads to turn off slowly or to a low brightness state through the LED dimming drive module.

[0013] The high-concentration LED spotlight of the present invention has the following beneficial effects: 1. The present invention utilizes the heat generated by LED lamps to activate the titanium dioxide coating to decompose indoor acetaldehyde and formaldehyde, converting indoor air pollutants into harmless compounds.

[0014] 2. The high-concentration spotlight lens of the present invention has better light spot brightness and obtains better light quality distribution, that is, the light spot is relatively uniform. The central light emitted by the LED lamp bead passes through the light incident surface and then emits from the first spherical surface; the light on both sides passes through the light incident surface and then is reflected by the total reflective mirror surface and then emitted from the second spherical surface. The light emitted from the first spherical surface and the second spherical surface is parallel to the optical axis. The central light emitted by the LED lamp bead is concentrated by the first spherical surface, and the side light emitted by the LED lamp bead is concentrated once by the total reflective mirror surface and then concentrated twice by the second spherical surface, thereby improving the focusing efficiency of the side light.

[0015] 3. The present invention utilizes an illumination sensor and a microwave radar sensing module to realize intelligent dimming control, thereby saving electricity and extending the service life of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a high-focus LED spotlight of the present invention; Figure 2 for Figure 1 Schematic diagram of the high-concentration spotlight lens structure; Figure 3 for Figure 2 A cross-sectional view of Figure 4 for Figure 2 A top view of Figure 5 It is a schematic diagram of the control system of the present invention. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments can be combined with each other. The present invention will be described in detail with reference to the accompanying drawings and in combination with the embodiments. The above, greater than, and less than mentioned in the present invention all include the number itself.

[0018] like Figure 1As shown, the present invention preferably adopts a high-concentration LED spotlight, wherein a circuit board 4 is mounted on a heat sink 5, an LED lamp bead 3 is mounted on the circuit board 4, a high-concentration rate spotlight lens is mounted above the LED lamp bead 3, a lamp cover 2 is mounted on the high-concentration rate spotlight lens, the outer surface of the high-concentration rate spotlight lens is a full-reflection mirror 10, and a titanium dioxide coating is coated on the outer surfaces of the heat sink 5, the lamp cover 2 and the full-reflection mirror 10, and the titanium dioxide coating contains platinum metal elements. The present invention utilizes the heat generated by the LED lamp bead 3 to activate the titanium dioxide coating to decompose indoor acetaldehyde and formaldehyde, and convert indoor air pollutants into harmless compounds.

[0019] like Figure 2 As shown, the high-concentration-rate spotlight lens comprises a main body 1, a cup cavity 14 with a larger upper portion and a smaller lower portion is provided inside the main body 1, a groove 11 is provided at the bottom of the main body 1, the outer surface of the main body 1 is a fully reflective mirror surface 10, the inner surface of the cup cavity 14 is a light-emitting surface, and the inner surface of the groove 11 is a light-incident surface 110; the bottom of the cup cavity 14 is a first spherical surface 12, the first spherical surface 12 bulges upward, and the inner wall of the cup cavity 14 is provided with concentric serrated rings 13, and the diameter of the concentric serrated rings 13 decreases from top to bottom.

[0020] like Figure 3 and Figure 4 As shown, the upper surface of the concentric sawtooth ring 13 is a second spherical curved surface 130, the diameter of the second spherical curved surface 130 decreases from top to bottom, and the first spherical curved surface 12 is concentric with the second spherical curved surface 130. The side surface of the concentric sawtooth ring 13 is a vertical surface 131, and the angle between the vertical surface 131 and the second spherical curved surface 130 is an acute angle.

[0021] The central light emitted by the LED lamp bead 3 passes through the light incident surface 110 and is emitted in parallel from the first spherical surface 12; the light on both sides passes through the light incident surface 110 and is reflected by the total reflective mirror surface 10 and is emitted in parallel from the second spherical surface 130. The parallel light emitted from the first spherical surface 12 and the second spherical surface 130 is parallel to the optical axis. The central light emitted by the LED lamp bead 3 is focused by the first spherical surface 12, and the side light emitted by the LED lamp bead 3 is focused once by the total reflective mirror surface 10 and then focused twice by the second spherical surface 130, thereby improving the focusing efficiency of the side light, obtaining a better light spot brightness, and obtaining a better light quality distribution, that is, the light spot is relatively uniform.

[0022] In order to realize intelligent dimming control, such as Figure 5As shown, it includes a controller, a power module, an LED dimming drive module, a Bluetooth communication module, a microwave radar sensing module, and an illumination sensor. The power module supplies power to the controller, the LED dimming drive module, the Bluetooth communication module, the microwave radar sensing module, the illumination sensor, and the LED lamp bead 3; the LED dimming drive module is connected to the LED lamp bead 3, the Bluetooth communication module, the microwave radar sensing module, and the illumination sensor are connected to the input end of the controller, and the LED dimming drive module is connected to the output end of the controller; the microwave radar sensing module senses the approach or distance of a moving object through changes in reflected waves, the LED dimming drive module is used to adjust the color temperature and brightness of the LED lamp bead (3), the Bluetooth communication module is used to remotely control the switch, brightness, and color temperature of the LED lamp bead 3, and the illumination sensor is used to sense the ambient light illumination; the controller controls the switch, brightness, and color temperature of the LED lamp bead 3 through the LED dimming drive module according to the microwave radar sensing module signal, the Bluetooth communication module signal, and the illumination sensor signal.

[0023] It includes a microwave radar sensing dimming mode. When the illuminance sensor senses that the ambient light illumination is lower than a preset illuminance value, the microwave radar sensing dimming mode is turned on. When the illuminance sensor senses that the ambient light illumination is higher than a preset illuminance value, the microwave radar sensing dimming mode is turned off. The microwave radar sensing dimming mode includes: when the microwave radar sensing module senses that a moving object is approaching, the controller controls the LED lamp beads 3 to light up slowly through the LED dimming drive module; when the microwave radar sensing module senses that a moving object is moving away, the controller controls the LED lamp beads 3 to turn off slowly or to a low brightness state through the LED dimming drive module.

[0024] The above-mentioned technologies are common knowledge to those skilled in the art. The above-mentioned are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-concentration LED spotlight, wherein a circuit board (4) is mounted on a heat sink (5), LED lamp beads (3) are mounted on the circuit board (4), a high-concentration spotlight lens is mounted above the LED lamp beads (3), and a lamp cover (2) is mounted on the high-concentration spotlight lens, characterized in that: The outer surface of the high-concentration spotlight lens is a full-reflection mirror surface (10), and a titanium dioxide coating is coated on the outer surfaces of the heat sink (5), the lamp cover (2) and the full-reflection mirror surface (10).

2. The high-concentration LED spotlight according to claim 1, characterized in that: The titanium dioxide coating contains platinum metal elements.

3. The high-concentration LED spotlight according to claim 1, characterized in that: The high-concentration-rate spotlight lens comprises a body (1), a cup cavity (14) with a larger upper portion than a lower portion is provided inside the body (1), a groove (11) is provided at the bottom of the body (1), the inner surface of the cup cavity (14) is a light-emitting surface, and the inner surface of the groove (11) is a light-entering surface (110); the bottom of the cup cavity (14) is a first spherical curved surface (12), the first spherical curved surface (12) is convex upward, and the inner wall of the cup cavity (14) is provided with concentric sawtooth rings (13), the diameter of the concentric sawtooth rings (13) decreasing from top to bottom.

4. The high-concentration LED spotlight according to claim 3, characterized in that: The upper surface of the concentric sawtooth ring (13) is a second spherical curved surface (130), the diameter of the second spherical curved surface (130) decreases from top to bottom, and the first spherical curved surface (12) and the second spherical curved surface (130) are concentric.

5. The high-concentration LED spotlight according to claim 4, characterized in that: The side surface of the concentric sawtooth ring (13) is a vertical surface (131), and the included angle between the vertical surface (131) and the second spherical curved surface (130) is an acute angle.

6. The high-concentration LED spotlight according to any one of claims 1 to 5, characterized in that: The invention comprises a controller, a power module, an LED dimming drive module, a Bluetooth communication module, a microwave radar sensing module, and an illumination sensor. The power module supplies power to the controller, the LED dimming drive module, the Bluetooth communication module, the microwave radar sensing module, the illumination sensor, and the LED lamp beads (3). The LED dimming drive module is connected to the LED lamp beads (3). The Bluetooth communication module, the microwave radar sensing module, and the illumination sensor are connected to the input end of the controller. The LED dimming drive module is connected to the output end of the controller. The microwave radar sensing module senses the approach or distance of a moving object through changes in reflected waves. The LED dimming drive module is used to adjust the color temperature and brightness of the LED lamp beads (3). The Bluetooth communication module is used to remotely control the switching, brightness, and color temperature of the LED lamp beads (3). The illumination sensor is used to sense the illumination of ambient light. The controller controls the switching, brightness, and color temperature of the LED lamp beads (3) through the LED dimming drive module according to the microwave radar sensing module signal, the Bluetooth communication module signal, and the illumination sensor signal.

7. The high-concentration LED spotlight according to claim 6, characterized in that: Including microwave radar sensing dimming mode, when the illuminance sensor senses that the ambient light illuminance is lower than the preset illuminance value, the microwave radar sensing dimming mode is turned on, and when the illuminance sensor senses that the ambient light illuminance is higher than the preset illuminance value, the microwave radar sensing dimming mode is turned off; The microwave radar sensing dimming mode includes: when the microwave radar sensing module senses that a moving object is approaching, the controller controls the LED lamp bead (3) to light up slowly through the LED dimming driving module; When the microwave radar sensing module senses that a moving object is moving away, the controller controls the LED lamp beads (3) to slowly turn off or to a low brightness state through the LED dimming drive module.

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