LED miniature projection lighting device with distributed battery energy supply

Abstract

The invention relates to the technical field of projection lighting equipment, and discloses an LED miniature projection lighting device with distributed battery energy supply, comprising: a projection lamp for projection lighting; and an illumination intensity reducing assembly. Through cooperation of the anti-dazzling screen and the driving assembly, when a pedestrian enters a projection area, the illumination intensity of the projection lamp can be reduced, so that the person in the illumination area of the projection lamp can be illuminated by the light of the electric vehicle, glare caused by high light hedging is avoided, an electric vehicle driver can see the pedestrian clearly, collision is avoided, and the safety of the electric vehicle is improved. According to the projection lamp, the situation that particulate matter rubs an anti-dazzling screen can be avoided through the arranged anti-scratching assembly, so that the inner side of the anti-dazzling screen can be protected, heat emitted by the projection lamp can be guided under the condition that the external temperature is low in winter, a sliding block in a support and a protection plate in a sliding rail are prevented from being frozen, and the service life of the projection lamp is prolonged. Therefore, normal descending and ascending of the shading sheet are guaranteed, and normal adjustment of illumination intensity is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of projection lighting equipment technology, and specifically relates to an LED micro projection lighting device with distributed battery power supply. Background Technology

[0002] LED micro-projection lighting devices are a type of compact optoelectronic device that uses LEDs (light-emitting diodes) as the core light source and combines micro-projection display and lighting functions (in some products). They are widely used in portable displays, commercial lighting, cultural tourism landscapes and other fields.

[0003] When existing LED micro-projection lights powered by distributed batteries are in use, if the area is dimly lit and a pedestrian is below the projected light area, the headlights of an oncoming electric vehicle will collide with the projected light on the pedestrian. The strong light collision causes glare, making it difficult for the electric vehicle driver to see the pedestrian, which may lead to a collision.

[0004] Therefore, it is necessary to invent an LED micro-projection lighting device with distributed battery power to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an LED micro-projection lighting device with distributed battery power supply, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an LED micro projection lighting device with distributed battery power supply, comprising: Projection lamp, used for projection lighting; A light intensity reduction component is disposed at the lens of the projection lamp to reduce the light intensity of the projection lamp when a person enters the light range; The light intensity reduction component includes: A light-shielding plate is positioned above the lens of the projection lamp; A driving component, disposed on the projection lamp, is used to drive the light-shielding plate to move in the vertical direction; An anti-scratch component is provided at the lens of the projection lamp to prevent the inner side of the light shield from being scratched by dust particles.

[0007] Furthermore, the driving component includes: The brackets are symmetrically arranged on the projection lamps; The lead screw is rotatably mounted inside the bracket; A slider is slidably disposed inside the bracket, the slider is threaded onto the outside of the lead screw, and the slider is connected to the light-shielding plate; A motor is connected to the top of the bracket, and the bottom of the motor's output shaft is connected to the top of the lead screw; A control component, disposed on the projection lamp, is used to control the motor when a person enters the illumination range of the projection lamp.

[0008] Furthermore, the control component includes: A PIR sensor is located at the bottom of the projection lamp to sense the area where a person is illuminated; A controller, mounted on the projection lamp, is used to control the motor in conjunction with the PIR sensor.

[0009] Furthermore, the anti-scratch component includes: A protective plate is symmetrically arranged at the lens of the projection lamp, and the protective plate is attached to the lens of the projection lamp; A slide rail is symmetrically connected to the projection lamp, and the protective plate is slidably installed inside the slide rail; A spring is disposed inside the slide rail, and the two ends of the spring are fixedly connected to the protective plate and the inner wall of the slide rail, respectively. An extrusion block, located on top of the protective plate, is used to cooperate with the light-shielding sheet to drive the protective plate to move away from the center of the projection lamp lens.

[0010] Furthermore, the extrusion block is specifically configured as a wedge-shaped block component, with the inclined surface of the extrusion block facing the light-shielding sheet, and the bottom of the light-shielding sheet symmetrically provided with inclined surfaces that cooperate with the inclined surface of the extrusion block.

[0011] Furthermore, a protective cover is fixedly mounted on the top of both motors, the protective cover encloses the light-shielding sheet, and the extrusion block is located below the protective cover.

[0012] Furthermore, both the slide rail and the bracket have cavities inside. The upper outer side of the bracket has a pipe that communicates with the cavity. The projection lamp has a guiding component that can guide the heat emitted from its interior into the cavity.

[0013] Furthermore, the guiding component includes: A connecting pipe connects the cavity of the slide rail to the cavity of the bracket; The cover is fixedly installed at the heat dissipation vent of the projection lamp; The openings are equidistantly arranged around the cover. A sealing plate is installed on the inner wall of the casing; The motor is fixedly installed on the outer middle part of the cover, and the end of the motor's output shaft is fixedly connected to the sealing plate through a connecting plate; A guide tube connects the cover to the cavity inside the slide rail; A temperature sensor, mounted on the housing, is used in conjunction with the controller to control the motor.

[0014] The technical effects and advantages of this invention are as follows: 1. This invention, through the cooperation of a light-shielding sheet and a driving component, reduces the light intensity of the projection lamp when a pedestrian enters the projection area, so that people in the projection lamp's illumination area can be illuminated by the electric vehicle's lights, avoiding glare caused by strong light collisions, and enabling the electric vehicle driver to see the pedestrian clearly, thus avoiding collisions. 2. The present invention can prevent particulate matter from rubbing against the light shield by setting the anti-scratch component, thereby protecting the inner side of the light shield; 3. This invention can guide the heat dissipation of the projection lamp when the outside temperature is low in winter, so as to heat the bracket and slide rail, prevent the slider in the bracket and the protective plate in the slide rail from freezing, ensure the normal sliding of the slider and the protective plate, thereby ensuring the normal descent and rise of the light shield and the normal adjustment of the light intensity. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of an LED micro projection lighting device with distributed battery power according to an embodiment of the present invention is shown. Figure 1 ; Figure 2 A cross-sectional structural schematic diagram of an LED micro projection lighting device with distributed battery power supply according to an embodiment of the present invention is shown; Figure 3 An embodiment of the present invention is shown. Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 A schematic diagram of the structure of an LED micro projection lighting device with distributed battery power according to an embodiment of the present invention is shown. Figure 2 ; Figure 5 A schematic diagram of the structure of an LED micro projection lighting device with distributed battery power according to an embodiment of the present invention is shown. Figure 3 ; In the diagram: 1. Projector lamp; 2. Light shield; 3. Bracket; 4. Lead screw; 5. Motor; 6. PIR sensor; 7. Protective plate; 8. Slide rail; 9. Spring; 10. Extrusion block; 11. Inclined surface; 12. Protective cover; 13. Cavity; 14. Pipeline; 15. Guide tube; 16. Cover; 17. Opening; 18. Sealing plate; 19. Motor; 20. Temperature sensor; 21. Connecting pipe. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0017] This invention provides an LED miniature projection lighting device with distributed battery power, such as... Figures 1 to 5 As shown, it includes: a projection lamp 1 and a light intensity reduction component; The projection lamp 1 is used for projection lighting. The projection lamp 1 is an existing LED micro projection lighting lamp, which is powered by a distributed battery. The light intensity reduction component is set at the lens of the projection lamp 1 to reduce the light intensity of the projection lamp 1 when a person enters the lighting range. The light intensity reduction components include: light-shielding sheet 2, driving component, and anti-scratch component; The light shield 2 is positioned above the lens of the projection lamp 1. The light shield 2 is a light shield that can reduce light intensity in the prior art. The driving component is positioned on the projection lamp 1 and is used to drive the light shield 2 to move in the vertical direction. The anti-scratch component is positioned at the lens of the projection lamp 1 and is used to prevent the inner side of the light shield 2 from being scratched by dust particles.

[0018] When in use, the projector lamp 1 is installed in the outside and projected lighting is provided. At night, if the area where the projector lamp 1 is located is relatively dark, when a pedestrian passes through the area illuminated by the projector lamp 1, if an electric vehicle is coming from the opposite direction, the headlights of the electric vehicle and the light from the projector lamp 1 will meet at the pedestrian's location, causing glare. This will make it difficult for the electric vehicle driver to see the pedestrian, which may lead to a collision. Therefore, when a pedestrian enters the illumination area of ​​the projection lamp 1, the drive component drives the light shield 2 to descend, gradually fitting and covering the lens of the projection lamp 1, thereby reducing the light intensity of the projection lamp 1. This allows people in the illumination area of ​​the projection lamp 1 to be illuminated by the electric vehicle's headlights, avoiding glare from strong light collisions, and enabling the electric vehicle driver to see the pedestrian clearly, thus avoiding collisions. Because the light shield 2 needs to fit snugly against the lens to achieve the best light shielding effect, but after being exposed to the outside for a long time, dust particles will accumulate on the lens of the projector lamp 1. When the light shield 2 moves along the lens, the inner side of the light shield 2 will rub against the particles on the lens, causing wear and tear on the light shield 2. Therefore, when the light-shielding sheet 2 descends, the anti-scratch component can prevent particulate matter from rubbing against the light-shielding sheet 2, thus protecting the inner side of the light-shielding sheet 2.

[0019] like Figure 2 As shown, the drive assembly includes: bracket 3, lead screw 4, slider, motor 5, and control assembly; The bracket 3 is symmetrically fixedly installed on the projection lamp 1. The lead screw 4 is rotatably installed inside the bracket 3. The slider is slidably installed inside the bracket 3. The slider is threaded on the outside of the lead screw 4. The slider is fixedly connected to the light shield 2. The motor 5 is fixedly connected to the top of the bracket 3. The bottom of the output shaft of the motor 5 is fixedly connected to the top of the lead screw 4. The control component is set on the projection lamp 1 and is used to control the motor 5 when a person enters the illumination range of the projection lamp 1.

[0020] When a pedestrian enters the illuminated area, the control component starts the motor 5, causing its output shaft to rotate forward, which in turn rotates the lead screw 4, thereby driving the slider to lower the light-shielding plate 2. When the pedestrian leaves the illuminated area, the control component controls the output shaft of the motor 5 to rotate in reverse, which in turn enables the light-shielding plate 2 to rise and reset.

[0021] like Figure 1 As shown, the control components include: PIR sensor 6 and controller (not shown in the figure). PIR sensor 6 is located at the bottom of projection lamp 1 and is used to sense the area where people are illuminated. The sensing coverage of PIR sensor 6 is larger than the projection range of projection lamp 1. The controller is a PLC controller, which is located on projection lamp 1 and is used to work with PIR sensor 6 to control motor 5.

[0022] When a pedestrian enters the projection area of ​​the projection lamp 1, the PIR sensor 6 detects the pedestrian's entry and controls the motor 5 to start via the controller, causing the output shaft of the motor 5 to rotate forward. When the pedestrian leaves the projection area of ​​the projection lamp 1, the PIR sensor 6, in conjunction with the controller, controls the output shaft of the motor 5 to rotate in reverse and reset.

[0023] like Figure 2 As shown, the anti-scratch assembly includes: a protective plate 7, a slide rail 8, a spring 9, and a squeeze block 10; The protective plate 7 is symmetrically arranged at the lens of the projector lamp 1. The protective plate 7 is attached to the lens of the projector lamp 1 and is semi-circular. The slide rail 8 is symmetrically fixedly connected to the projector lamp 1. The protective plate 7 is slidably installed in the slide rail 8. The spring 9 is set inside the slide rail 8. The two ends of the spring 9 are fixedly connected to the inner wall of the protective plate 7 and the slide rail 8, respectively. The extrusion block 10 is fixedly installed on the top of the protective plate 7 and is used to cooperate with the light shield 2 to drive the protective plate 7 to move away from the center of the lens of the projector lamp 1. The extrusion block 10 is specifically set as a wedge-shaped block component. The inclined surface of the extrusion block 10 faces the light shield 2. The bottom of the light shield 2 is symmetrically provided with inclined surfaces 11 that cooperate with the inclined surface of the extrusion block 10.

[0024] When the light shield 2 descends, it works in conjunction with the inclined surface 11 to squeeze the extrusion block 10, causing the protective plate 7 to move. The movement of the pair of protective plates 7 away from each other compresses the spring 9, causing it to deform. Due to the presence of the protective plate 7, dust particles can be blocked, preventing them from being located at the lens of the projection lamp 1. As the light shield 2 descends, the inner side of the light shield 2 can contact the clean lens of the projection lamp 1, thus preventing it from being worn by particles. When the light shield 2 rises and returns to its original position, the spring 9, along with the protective plate 7, returns to its original position.

[0025] like Figure 1 As shown, a protective cover 12 is fixedly installed on the top of both motors 5. The protective cover 12 covers the light shield 2, and the extrusion block 10 is located below the protective cover 12.

[0026] The protective cover 12 can protect the light-shielding sheet 2 and prevent damage.

[0027] like Figures 2 to 5 As shown, both the slide rail 8 and the bracket 3 have cavities 13 inside. The upper outer side of the bracket 3 has a pipe 14 that communicates with the cavity 13. The projection lamp 1 has a guiding component that can guide the heat emitted from its interior to the cavity 13. The projection lamp 1 has a built-in heat dissipation mechanism, which is the air-cooled heat dissipation mechanism in the projection lamp in the prior art.

[0028] In winter, when the outside temperature is low, the heat inside the projection lamp 1 is guided to the cavity 13 inside the slide rail 8 and the bracket 3 by the guiding component, so that the bracket 3 and the slide rail 8 can be heated, preventing the slider inside the bracket 3 and the protective plate 7 inside the slide rail 8 from freezing, ensuring the normal sliding of the slider and the protective plate 7, thereby ensuring the normal descent and rise of the light shield 2. The airflow generated by the heat dissipation mechanism inside the projection lamp 1 is discharged through the exhaust pipe 14.

[0029] like Figures 4 to 5 As shown, the guiding assembly includes: a guiding tube 15, a cover 16, an opening 17, a sealing plate 18, a motor 19, a temperature sensor 20, and a connecting pipe 21; Connecting pipe 21 connects the cavity 13 of slide rail 8 with the cavity 13 of bracket 3. Cover 16 is fixedly installed at the heat dissipation port of projection lamp 1. Openings 17 are equidistantly arranged around the cover 16. Sealing plate 18 is set on the inner wall of cover 16. Motor 19 is fixedly installed in the middle of the outer side of cover 16. The output shaft end of motor 19 is fixedly connected to sealing plate 18 through connecting plate. Guide pipe 15 connects cover 16 with cavity 13 inside slide rail 8. Temperature sensor 20 is set on cover 16 and used to cooperate with controller to control motor 19. The outside of guide pipe 15 and connecting pipe 21 are covered with heat insulation sleeve.

[0030] A threshold is set by temperature sensor 20. When the temperature is below the threshold, temperature sensor 20, in conjunction with the controller, controls the output shaft of motor 19 to rotate forward, which in turn causes the connecting plate to rotate the sealing plate 18, thus closing the opening 17. At this time, the heat dissipation mechanism inside the projection lamp 1 enters the cavity 13 of the slide rail 8 through the guide tube 15, and then enters the cavity 13 of the bracket 3 through the connecting tube 21, and then is discharged through the drain pipe 14, thus heating the bracket 3 and the slide rail 8. When the temperature is above the threshold, temperature sensor 20, in conjunction with the controller, controls the output shaft of motor 19 to rotate in reverse, and vice versa, thus opening the opening 17, which is beneficial for better heat dissipation of the projection lamp 1.

[0031] Working principle: When in use, the projector lamp 1 is installed in the outside and projected to provide illumination. At night, if the area where the projector lamp 1 is located is relatively dark, when a pedestrian passes through the area illuminated by the projector lamp 1, if an electric vehicle is traveling in the opposite direction, the headlights of the electric vehicle and the light from the projector lamp 1 will meet at the pedestrian's location, causing glare. This will make it difficult for the electric vehicle driver to see the pedestrian, thus leading to a collision. Therefore, when a pedestrian enters the illuminated area of ​​the projection lamp 1, the PIR sensor 6 detects the pedestrian's entry and controls the motor 5 to start via the controller. This causes the output shaft of the motor 5 to rotate forward, which in turn rotates the lead screw 4, driving the slider to lower the light shield 2. As the light shield 2 descends, it works in conjunction with the inclined surface 11 to squeeze the extrusion block 10, causing the protective plate 7 to move. The movement of the pair of protective plates 7 away from each other compresses and deforms the spring 9. Due to the presence of the protective plate 7, dust particles are blocked, preventing them from being located at the lens of the projection lamp 1. As the light shield 2 descends, its inner side comes into contact with the clean lens of the projection lamp 1, thus preventing it from being worn by particles. Finally, the light shield 2 descends to fit against the lens, reducing the light intensity of the projection lamp 1. This allows people in the illuminated area of ​​the projection lamp 1 to be illuminated by the electric vehicle's headlights, avoiding glare from strong light collisions and allowing the electric vehicle driver to see the pedestrian clearly, thus preventing collisions. When a pedestrian leaves the projection area of ​​the projection lamp 1, the PIR sensor 6, in conjunction with the controller, controls the output shaft of the motor 5 to reverse and reset. Conversely, it enables the light-shielding plate 2 to rise and reset. When the light-shielding plate 2 rises and resets, the spring 9, along with the protective plate 7, resets. In winter, when the outside temperature is low, a threshold is set by the temperature sensor 20. When the temperature is below the threshold, the temperature sensor 20, in conjunction with the controller, controls the output shaft of the motor 19 to rotate forward, which in turn causes the connecting plate to rotate the sealing plate 18, thus closing the opening 17. At this time, the heat dissipation mechanism inside the projection lamp 1 enters the cavity 13 of the slide rail 8 through the guide pipe 15, and then enters the cavity 13 of the bracket 3 through the connecting pipe 21, and is then discharged through the drain pipe 14. This allows for heating of the bracket 3 and the slide rail 8, preventing the slider in the bracket 3 and the protective plate 7 in the slide rail 8 from freezing, ensuring the normal sliding of the slider and the protective plate 7, and thus ensuring the normal descent and ascent of the light shield 2. When the temperature is above the threshold, the temperature sensor 20, in conjunction with the controller, controls the output shaft of the motor 19 to rotate in reverse, and vice versa, opening the opening 17, which is beneficial for better heat dissipation of the projection lamp 1.

[0032] By adjusting the light intensity in the above way, compared to directly changing the current, damage to the LED chips can be reduced.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A miniature LED projection lighting device powered by distributed batteries, characterized in that, include: Projector lamp (1), used for projection lighting; A light intensity reduction component is provided at the lens of the projection lamp (1) to reduce the light intensity of the projection lamp (1) when a person enters the light range; The light intensity reduction component includes: A light-shielding plate (2) is disposed above the lens of the projection lamp (1); A driving component, disposed on the projection lamp (1), is used to drive the light shield (2) to move in the vertical direction; An anti-scratch component is provided at the lens of the projection lamp (1) to prevent the inner side of the light shield (2) from being scratched by dust particles.

2. The LED micro projection lighting device with distributed battery power supply according to claim 1, characterized in that: The driving component includes: The bracket (3) is symmetrically arranged on the projection lamp (1); The lead screw (4) is rotatably mounted inside the bracket (3); The slider is slidably disposed inside the bracket (3), the slider is threadedly sleeved on the outside of the lead screw (4), and the slider is connected to the light shield (2); A motor (5) is connected to the top of the bracket (3), and the bottom of the output shaft of the motor (5) is connected to the top of the lead screw (4); A control component is provided on the projection lamp (1) for controlling the motor (5) when a person enters the illumination range of the projection lamp (1).

3. The LED micro projection lighting device with distributed battery power supply according to claim 2, characterized in that: The control component includes: A PIR sensor (6) is disposed at the bottom of the projection lamp (1) for sensing the area where a person is illuminated; A controller is mounted on the projection lamp (1) and is used to control the motor (5) in conjunction with the PIR sensor (6).

4. The LED micro projection lighting device with distributed battery power supply according to claim 3, characterized in that: The anti-scratch component includes: A protective plate (7) is symmetrically arranged at the lens of the projection lamp (1), and the protective plate (7) is attached to the lens of the projection lamp (1); The slide rail (8) is symmetrically connected to the projection lamp (1), and the protective plate (7) is slidably installed inside the slide rail (8); A spring (9) is disposed inside the slide rail (8), and the two ends of the spring (9) are fixedly connected to the protective plate (7) and the inner wall of the slide rail (8), respectively. An extrusion block (10) is disposed on the top of the protective plate (7) and is used to cooperate with the light shield (2) to drive the protective plate (7) to move away from the center of the projection lamp (1) lens.

5. The LED micro projection lighting device with distributed battery power supply according to claim 4, characterized in that: The extrusion block (10) is specifically configured as a wedge-shaped block component, with the inclined surface of the extrusion block (10) facing the light-shielding sheet (2), and the bottom of the light-shielding sheet (2) is symmetrically provided with inclined surfaces (11) that cooperate with the inclined surface of the extrusion block (10).

6. The LED micro projection lighting device with distributed battery power supply according to claim 5, characterized in that: A protective cover (12) is fixedly installed on the top of both motors (5), the protective cover (12) wraps the light shield (2), and the extrusion block (10) is located below the protective cover (12).

7. The LED micro projection lighting device with distributed battery power supply according to claim 6, characterized in that: Both the slide rail (8) and the bracket (3) are provided with cavities (13). The upper outer side of the bracket (3) is provided with a pipe (14) that communicates with the cavity (13). The projection lamp (1) is provided with a guiding component that can guide the heat emitted from its interior to the cavity (13).

8. The LED micro projection lighting device with distributed battery power supply according to claim 7, characterized in that: The boot component includes: Connecting pipe (21) connects the cavity (13) of the slide rail (8) to the cavity (13) of the bracket (3); The cover (16) is fixedly installed at the heat dissipation port of the projection lamp (1); An opening (17) is equidistantly arranged around the cover (16); A sealing plate (18) is provided on the inner wall of the cover (16); The motor (19) is fixedly installed on the outer middle part of the cover (16), and the output shaft end of the motor (19) is fixedly connected to the sealing plate (18) through a connecting plate; The guide tube (15) connects the cover (16) to the cavity (13) inside the slide rail (8); A temperature sensor (20) is disposed on the housing (16) for use in conjunction with the controller to control the motor (19).

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