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 utility model relates to the technical field of lighting, and particularly relates to a high-condensing LED spotlight. Background Art

[0002] LED (Light-Emitting-Diode, whose Chinese meaning is light-emitting diode) is a semiconductor that can convert electrical energy into light energy. It changes the principles of incandescent tungsten wire lighting and energy-saving lamp trichromatic powder lighting, and uses electric field lighting. The luminous efficacy of LED is currently only 100 lm / W, and its electro-optical conversion efficiency is only about 20 - 30%. That is to say, about 70% of the electrical energy is converted into heat. The heat generation of LED is caused by two factors:

[0003] 1. The internal quantum efficiency is not high. That is, when electrons and holes recombine, not 100% of them can generate photons. Usually, it is called that the recombination rate of carriers in the PN region is reduced due to "current leakage". The power of this part is the leakage current multiplied by the voltage, that is, it is converted into heat energy, but this part does not account for the main component because the current internal photon efficiency has approached 90%.

[0004] 2. The photons generated inside cannot all be emitted outside the wafer and finally are converted into heat. This part is the main one because currently, this so-called external quantum efficiency is only about 30%, and most of them are converted into heat.

[0005] Currently, in order to solve the heat dissipation problem of LED lamps, generally a heat dissipation device is used for heat dissipation, and the heat generated by the LED is not utilized. Content of the Utility Model

[0006] In view of this, the utility model provides a high-condensing LED spotlight, which utilizes the heat generated by the LED lamp to activate the titanium dioxide coating to decompose acetaldehyde and formaldehyde in the room and convert indoor air pollutants into harmless compounds.

[0007] On the one hand, the utility model provides a high-condensing LED spotlight. A circuit board is installed on a heat dissipation base, an LED lamp bead is installed on the circuit board, a high-condensing rate spotlight lens is installed above the LED lamp bead, a lamp cover is installed on the high-condensing rate spotlight lens, the outer surface of the high-condensing rate spotlight lens is a full-reflective mirror surface, and a titanium dioxide coating is applied on the outer surfaces of the heat dissipation base, the lamp cover and the full-reflective mirror surface.

[0008] In a further technical solution, the titanium dioxide coating contains platinum metal elements.

[0009] In a further technical solution, to obtain better spot brightness and uniformity, the high-concentration spotlight lens includes a body. A cup cavity with a larger upper part and a smaller lower part is formed inside the body. A groove is formed at the bottom of the 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 that bulges upward. A concentric sawtooth ring is arranged on the inner wall of the cup cavity, and the diameter of the concentric sawtooth ring decreases from top to bottom.

[0010] In a further technical solution, the upper surface of the concentric sawtooth 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 of the sphere.

[0011] In a further technical solution, the side surface of the concentric sawtooth ring is a vertical surface, and the included angle between the vertical surface and the second spherical surface is an acute angle.

[0012] In a further technical solution, to achieve intelligent dimming control, it includes a controller, a power module, an LED dimming drive module, a Bluetooth communication module, a microwave radar induction module, and an illuminance sensor. The power module supplies power to the controller, the LED dimming drive module, the Bluetooth communication module, the microwave radar induction module, the illuminance 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 induction module, and the illuminance 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 induction module senses the approach or departure of a moving object through the change of the reflected wave. 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 for remote control to adjust the switch, brightness, and color temperature of the LED lamp beads. The illuminance sensor is used to sense the ambient illuminance. The controller controls the switch, brightness, and color temperature of the LED lamp beads through the LED dimming drive module according to the signals of the microwave radar induction module, the Bluetooth communication module, and the illuminance sensor.

[0013] In a further technical solution, it includes a microwave radar induction dimming mode. When the illuminance sensor senses that the ambient illuminance is lower than a preset illuminance value, the microwave radar induction dimming mode is turned on. When the illuminance sensor senses that the ambient illuminance is higher than the preset illuminance value, the microwave radar induction dimming mode is turned off. The microwave radar induction dimming mode includes: when the microwave radar induction module senses the approach of a moving object, the controller controls the LED lamp beads to light up slowly through the LED dimming drive module; when the microwave radar induction module senses the departure of a moving object, the controller controls the LED lamp beads to go out slowly or be in a low-brightness state through the LED dimming drive module.

[0014] The beneficial effects of a high-concentration LED spotlight of the present utility model are as follows:

[0015] 1. The utility model utilizes the heat generated by the LED lamp to activate the titanium dioxide coating to decompose acetaldehyde and formaldehyde in the room, and converts indoor air pollutants into harmless compounds.

[0016] 2. The high-concentration spotlight lens of the utility model has better spot brightness and obtains better light quality distribution, that is, the spot is relatively uniform. After the central light rays emitted by the LED lamp beads pass through the light incident surface, they are emitted from the first spherical surface; after the side light rays pass through the light incident surface, they are reflected by the total reflection mirror surface and then emitted from the second spherical surface. The light rays emitted from the first spherical surface and the second spherical surface are parallel to the optical axis. The central light rays emitted by the LED lamp beads are concentrated by the first spherical surface, and the side light rays emitted by the LED lamp beads are concentrated once by the total reflection mirror surface and then concentrated twice by the second spherical surface, improving the light concentration efficiency of the side light rays.

[0017] 3. The utility model utilizes an illuminance sensor and a microwave radar induction module to realize intelligent dimming control, saving electricity and prolonging the service life of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 is a schematic structural diagram of a high-concentration LED spotlight of the present utility model;

[0020] Figure 2 is Figure 1 a schematic structural diagram of the high-concentration spotlight lens;

[0021] Figure 3 is Figure 2 a sectional view;

[0022] Figure 4 is Figure 2 a top view;

[0023] Figure 5 is a schematic diagram of the control system of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to detail the present utility model. The above, greater than, and less than described in the present utility model all include the present number.

[0025] As Figure 1As shown in the figure, the utility model preferably relates to a high-concentration LED spotlight. A circuit board 4 is installed on a heat dissipation base 5, an LED lamp bead 3 is installed on the circuit board 4, a high-concentration spotlight lens is installed above the LED lamp bead 3, a lamp cover 2 is installed on the high-concentration spotlight lens, the outer surface of the high-concentration spotlight lens is a full-reflective mirror surface 10, a titanium dioxide coating is applied on the outer surfaces of the heat dissipation base 5, the lamp cover 2 and the full-reflective mirror surface 10, and a platinum metal element is contained in the titanium dioxide coating. The utility model utilizes the heat generated by the LED lamp bead 3 to activate the titanium dioxide coating to decompose acetaldehyde and formaldehyde in the room and convert indoor air pollutants into harmless compounds.

[0026] As Figure 2 shown, the high-concentration spotlight lens includes a body 1. A cup cavity 14 with a large upper part and a small lower part is formed inside the body 1. A groove 11 is formed at the bottom of the body 1. The outer surface of the body 1 is a full-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, and the first spherical surface 12 protrudes upward. A concentric sawtooth ring 13 is arranged on the inner wall of the cup cavity 14, and the diameter of the concentric sawtooth ring 13 decreases from top to bottom.

[0027] As Figure 3 and Figure 4 shown, the upper surface of the concentric sawtooth ring 13 is a second spherical surface 130, and the diameter of the second spherical surface 130 decreases from top to bottom. The first spherical surface 12 and the second spherical surface 130 have the same center of the sphere. 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 surface 130 is an acute angle.

[0028] After the central light rays emitted by the LED lamp bead 3 pass through the light-incident surface 110, they are emitted parallel from the first spherical surface 12; after the side light rays pass through the light-incident surface 110, they are reflected by the full-reflective mirror surface 10 and then emitted parallel from the second spherical surface 130. The parallel light rays emitted from the first spherical surface 12 and the second spherical surface 130 are parallel to the optical axis. The central light rays emitted by the LED lamp bead 3 are concentrated by the first spherical surface 12. After the side light rays emitted by the LED lamp bead 3 are concentrated once by the full-reflective mirror surface 10, they are then concentrated twice by the second spherical surface 130, improving the concentration efficiency of the side light rays, obtaining better spot brightness, and obtaining better light quality distribution, that is, the spot is relatively uniform.

[0029] In order to achieve intelligent dimming control, as Figure 5As shown, it includes a controller, a power module, an LED dimming drive module, a Bluetooth communication module, a microwave radar induction module, and an illuminance sensor. The power module supplies power to the controller, the LED dimming drive module, the Bluetooth communication module, the microwave radar induction module, the illuminance 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 induction module, and the illuminance 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 induction module senses the approach or departure of a moving object through the change of the reflected wave. 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 for remote control to adjust the switch, brightness, and color temperature of the LED lamp bead 3. The illuminance sensor is used to sense the ambient illuminance. The controller controls the switch, brightness, and color temperature of the LED lamp bead 3 through the LED dimming drive module according to the signals of the microwave radar induction module, the Bluetooth communication module, and the illuminance sensor signal.

[0030] It includes a microwave radar induction dimming mode. When the illuminance sensor senses that the ambient illuminance is lower than the preset illuminance value, the microwave radar induction dimming mode is turned on. When the illuminance sensor senses that the ambient illuminance is higher than the preset illuminance value, the microwave radar induction dimming mode is turned off. The microwave radar induction dimming mode includes: when the microwave radar induction module senses the approach of a moving object, the controller controls the LED lamp bead 3 to slowly light up through the LED dimming drive module; when the microwave radar induction module senses the departure of a moving object, the controller controls the LED lamp bead 3 to slowly go out or be in a low-brightness state through the LED dimming drive module.

[0031] The technologies not described above are common knowledge to those skilled in the art. The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, 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, on which a circuit board (4) is installed on a heat dissipation base (5), an LED lamp bead (3) is installed on the circuit board (4), a high-concentration spotlight lens is installed above the LED lamp bead (3), and a lamp cover (2) is installed on the high-concentration spotlight lens, characterized in that, The outer surface of the high light concentration spot lamp lens is a full-reflective mirror surface (10), and a titanium dioxide coating is applied on the outer surfaces of the heat dissipation base (5), the lamp cover (2) and the full-reflective mirror surface (10).

2. The high-concentration LED spot lamp according to claim 1, characterized in that, The high light concentration spot lamp lens includes a body (1). A cup cavity (14) with a larger upper part and a smaller lower part is formed inside the body (1). A groove (11) is formed at the bottom of the body (1). The inner surface of the cup cavity (14) is the light-emitting surface, and the inner surface of the groove (11) is the light-incident surface (110); the bottom of the cup cavity (14) is a first spherical surface (12), and the first spherical surface (12) bulges upward. A concentric sawtooth ring (13) is arranged on the inner wall of the cup cavity (14), and the diameter of the concentric sawtooth ring (13) decreases from top to bottom.

3. The high-concentration LED spot lamp according to claim 2, characterized in that, The upper surface of the concentric sawtooth ring (13) is a second spherical surface (130), and the diameter of the second spherical surface (130) decreases from top to bottom. The first spherical surface (12) and the second spherical surface (130) have the same center of the sphere.

4. The high-concentration LED spot lamp according to claim 3, 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 surface (130) is an acute angle.

5. The high-concentration LED spot lamp according to any one of claims 1 to 4, characterized in that, It includes a controller, a power supply module, an LED dimming drive module, a Bluetooth communication module, a microwave radar induction module, and an illuminance sensor. The power supply module supplies power to the controller, the LED dimming drive module, the Bluetooth communication module, the microwave radar induction module, the illuminance 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 induction module, and the illuminance 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 induction module senses the approach or departure of a moving object through the change of the reflected wave. 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 for remote control to adjust the switch, brightness, and color temperature of the LED lamp beads (3). The illuminance sensor is used to sense the ambient illuminance; the controller controls the switch, brightness, and color temperature of the LED lamp beads (3) through the LED dimming drive module according to the signals of the microwave radar induction module, the Bluetooth communication module, and the illuminance sensor.

6. The high-concentration LED spot lamp according to claim 5, characterized in that, It includes a microwave radar induction dimming mode. When the illuminance sensor senses that the ambient illuminance is lower than the preset illuminance value, the microwave radar induction dimming mode is turned on. When the illuminance sensor senses that the ambient illuminance is higher than the preset illuminance value, the microwave radar induction dimming mode is turned off; The microwave radar induction dimming mode includes: when the microwave radar induction module senses the approach of a moving object, the controller controls the LED lamp beads (3) to light up slowly through the LED dimming drive module; When the microwave radar induction module senses the departure of a moving object, the controller controls the LED lamp beads (3) to go out slowly or be in a low-brightness state through the LED dimming drive module.

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