Energy-saving projection outdoor lamp capable of adjusting heat dissipation based on environment

Abstract

The invention discloses an energy-saving projection outdoor lamp based on environmental adjustment heat dissipation, and relates to the technical field of outdoor lamps. The energy-saving projection outdoor lamp comprises a direction adjusting table, a transmission light source cylinder, a radiator and an electric focusing module; a driving module, an LED full-color dot matrix light source, a color temperature compensation unit, a cooling fan and a radiator are integrated in the transmission light source cylinder; the radiator is provided with a central flow channel and a plurality of branch flow channels, the radiating fan achieves active or passive radiating through multiple radiating modes which are preset based on the environment and comprise rain-free air draft, rain air exhaust and natural radiating, and radiating power consumption of lamp operation is remarkably reduced. The electric focusing module is used for adjusting the focal length and correcting aberration and improving the projection effect; through intelligent heat dissipation control and multifunctional integration, the outdoor projection lamp which is energy-saving, excellent in projection effect and long in service life is achieved, and the outdoor projection lamp is suitable for various outdoor environments; the problems that according to an existing outdoor projection lamp, the proportion of heat dissipation power to total power is large, and energy consumption cost performance is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of outdoor lamps, and in particular to an energy-saving outdoor lamp capable of regulating heat dissipation based on the environment. Background Art

[0002] With the acceleration of urbanization and the booming night economy, projection-type outdoor lamps (such as landscape lighting, advertising searchlights, traffic lights, etc.) are widely used due to their long-distance light radiation characteristics. Existing projection-type outdoor lamps generally use high-power LED light sources with forced air cooling and heat dissipation systems. The typical power configuration can reach 300W-2000W. Such lamps generate a lot of heat energy when working, and the power consumption of their heat dissipation system accounts for as much as 15%-30% of the total power. Taking a certain brand of 1000W street lamp as an example, the power consumption of the traditional air cooling and heat dissipation system is about 150W, and the annual power consumption reaches 1314 degrees (calculated based on 12 hours of operation per day).

[0003] The current mainstream heat dissipation technology has significant defects: in a sunny and dry environment, the fan continues to run at full power, resulting in energy waste; in a rainy environment, the traditional design reduces the heat dissipation efficiency due to increased air humidity, and even causes the risk of circuit short circuit. Experimental data shows that under weather conditions with rainfall greater than 5mm / h, the heat dissipation efficiency of traditional lamps is reduced by about 40%, and the fan speed has to be increased to maintain normal operating temperature, further exacerbating the energy consumption problem.

[0004] Although existing research has proposed water-cooled auxiliary heat dissipation technology (such as the water-cooled street lamp disclosed in CN20201012345.6), it uses a fixed water-cooled pipeline structure, which has the following technical bottlenecks: 1) It requires additional water storage tanks and water pump systems, which increases the equipment volume and maintenance costs; 2) It is impossible to adaptively switch the working mode according to the ambient humidity; 3) Pipeline freezing failures are prone to occur in low temperature environments in winter. In addition, although the spray cooling solution proposed in US Patent US2021 / 0045678 can utilize ambient water vapor, it has the defect that droplet adhesion affects the transmittance of optical components.

[0005] It can be seen that the existing outdoor lighting heat dissipation technology has not yet achieved intelligent coordination between environmental parameters and heat dissipation strategies, and it is difficult to balance the contradictions between heat dissipation efficiency, energy consumption and equipment reliability. The present invention breaks through the limitations of traditional heat dissipation methods by constructing a complete technical system of environmental perception-adaptive switching of heat dissipation modes-energy consumption optimization, and provides a new energy-saving solution for high-power projection-type outdoor lamps.

[0006] In summary, it is found that the prior art has at least the following technical problems:

[0007] Under the premise that the greater the luminous power of existing outdoor projection lamps, the greater the heat generated, there is a problem that the heat dissipation power accounts for a large proportion of the total power and the energy consumption cost-effectiveness is low. Summary of the invention

[0008] The purpose of the present invention is to provide an energy-saving outdoor projection lamp with heat dissipation adjusted based on the environment, so as to solve the problem that the existing outdoor projection lamps have a large proportion of heat dissipation power to total power and low energy consumption cost performance under the premise that the greater the luminous power, the greater the heat generated.

[0009] The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0010] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0011] The present invention provides an energy-saving outdoor projection lamp with heat dissipation based on environmental regulation, comprising a three-axial direction adjustment platform, which is driven by a motor to adjust the projection direction of the lamp in real time; and a transmission light source tube, in which a waterproof and sealed driving module for image projection, an LED full-color dot matrix light source and a color temperature compensation unit are integrated, as well as a cooling fan integrated with heat dissipation and stepless speed regulation, and a radiator capable of limiting the flow direction of the cooling fluid; the radiator is provided with a central flow channel and a plurality of branch flow channels interconnected with each other in the cross-sectional direction, and the branch flow channels are arranged outside the circumference of the central flow channel; the driving module and the LED full-color dot matrix light source are both in contact with the radiator to form heat conduction; the cooling fan is arranged at the central flow channel; in an outdoor environment where the lamp is located and there is no rain When the light is turned on, the cooling fan draws in wind from the outside to the inside as a cooling fluid, driving the heat to be continuously taken out along the central flow channel to the multiple branch flow channels; when it rains in the outdoor environment where the lamp is located, the cooling fan adjusts the wind direction to draw out wind from the inside to the outside, so that the branch flow channels inhale wind and rain to form a mixed cooling fluid with higher cooling efficiency, and the power of the cooling fan is reduced to reduce power consumption; and an electric focusing module, the electric focusing group is installed at the light emitting end of the transmission light source tube, and is used to adjust the focal length of the projected image, control the focal position, correct spherical aberration and astigmatism, and reduce aberration; the driving module is externally connected to an AC power supply, and supplies power to the adjustment platform, the LED full-color dot matrix light source, the color temperature compensation unit, the cooling fan and the electric focusing module, and provides control signals.

[0012] In one of the embodiments, the two ends of the heat sink are respectively an open end and a closed end, the central flow channel and the plurality of branch flow channels extend from the open end along the length direction of the heat sink to the closed end, and are connected inside the closed end; the driving module is packaged as a ring component; the outer side of the closed end of the heat sink contacts the back side of the LED full-color dot matrix light source to form heat conduction, and the outer ring of the driving module contacts the inner wall of the central flow channel to form heat conduction.

[0013] In one of the embodiments, the heat sink is a heat dissipation device composed of aluminum alloy and copper layer.

[0014] In one embodiment, the transmitted light source tube is provided with a control section and a light source sealing section; the outer shell of the control section is the radiator, the outer wall of the radiator is provided with cooling fins, the heat dissipation body of the radiator and the cooling fins are an integrated aluminum alloy body; the LED full-color dot matrix light source and the color temperature compensation unit are arranged in the light source sealing section.

[0015] In one of the embodiments, the radiator is provided with a closed cover, which is sealed and connected to the heat dissipation body to form the closed end; the closed cover is a copper plate; the position where the closed cover contacts the LED full-color dot matrix light source is coated with thermal conductive adhesive; copper tubes are embedded in the inner walls of the straight sections of the central flow channel and the branch flow channel; thermal conductive adhesive is coated between the position where the drive module contacts the copper tube of the main flow channel.

[0016] In one embodiment, the light source sealing section includes a first shell, a first sealing ring, a second shell and a second sealing ring; the color temperature compensation unit includes a compensation lamp ring and two RGB color sensors; the compensation lamp ring and the RGB color sensor are both electrically connected to the driving module; the first shell is connected to the closed end of the radiator by bolts, and the first sealing ring is arranged between the first shell and the closed end of the radiator; the LED full-color dot matrix light source is within the range surrounded by the first shell; one end of the second shell is the light emitting end, and the other end of the second shell is connected to the first shell by bolts, and the second sealing ring is arranged between the first shell and the second shell; the compensation lamp ring is installed on the inner wall of the second shell and is away from the light emitting end; the two RGB color sensors are respectively arranged on both sides of the compensation lamp ring in the second shell, adjacent to the first shell and the light emitting end respectively.

[0017] In one of the embodiments, a connecting socket is provided on the outer wall of the second shell, and the connecting socket is electrically connected to the driving module; the connecting socket and the connecting plug of the electric focusing module are docked and connected when the electric focusing module is put on the light emitting end.

[0018] In one of the embodiments, the electric focusing module includes a lens barrel, a plano-convex lens, an aspheric lens, a biconvex lens and a displacement mechanism; the two ends of the lens barrel are respectively a sleeve end and a projection end, and the sleeve end is sleeved with the light emitting end; the displacement mechanism includes a fine-motion screw linear unit, a fine-motion screw dual-axis unit, a micro motor and a dual-axis motor, the fine-motion screw linear unit and the fine-motion screw dual-axis unit are arranged inside the lens barrel, the micro motor and the dual-axis motor are arranged outside the lens barrel and are respectively connected to the fine-motion screw linear unit and the fine-motion screw dual-axis unit for transmission. The plano-convex lens, the aspheric lens and the biconvex lens are coaxially arranged in sequence along the axis of the lens barrel, and the plano-convex lens is adjacent to the sleeve end of the lens barrel, and the biconvex lens is adjacent to the projection end of the lens barrel; the aspheric lens is fixed in the lens barrel; the moving output ends of the micro-screw linear unit and the micro-screw dual-axis unit are respectively connected to the plano-convex lens and the biconvex lens, the micro-motor controls the plano-convex lens to move toward or away from the aspheric lens, and the dual-axis motor controls the biconvex lens to move along the X / Y axis direction of the plane.

[0019] In one of the embodiments, linear encoders are installed on the micro-screw linear unit and the micro-screw dual-axis unit; and a color perception unit integrating a CMOS sensor and a light intensity sensor is also included, wherein the color perception unit is installed at the side of the projection end, and the shooting end of the CMOS sensor and the measuring end of the light intensity sensor are facing the projection target to be detected; the color perception unit collects the image and total light intensity of the projection target, calculates through the built-in algorithm of the driving module, and controls the electric focusing module and the LED full-color dot matrix light source, so as to form a closed-loop control of the focus, aberration and light intensity of the projection target.

[0020] In one of the embodiments, the steering platform includes a three-axis power base, three intermediate transmission arms and a multi-directional rotating platform, which are composed of a base bracket, three stepper motors, three coaxially stacked bevel gears, three coaxially sleeved and mutually freely rotating shaft cylinders and three coaxially sleeved output rings; the stepper motors, the bevel gears and the shaft cylinders are all installed in the base bracket, and the rotating ends of the three stepper motors are respectively installed with output gears. The three stepper motors form gear transmission with the three bevel gears through the output gears, and independently control the steering of the three bevel gears; the three bevel gears are respectively connected to the three The three shaft cylinders are transmission connected with the three output rings respectively; an output arm is arranged on the end face of one side of the output ring; one end of the three intermediate transmission arms are rotationally connected with the output arms of the three output rings respectively, and the three intermediate transmission arms are arranged on the circular surface with the central angle staggered by 120 degrees; the other ends of the three intermediate transmission arms are rotationally connected with the connecting end on one side of the multi-directional rotating table, and the three connecting ends of the multi-directional rotating table are arranged on the circular surface with the central angle staggered by 120 degrees; the other side end face of the multi-directional rotating table is overhead connected and fixed to the transmitted light source tube.

[0021] The beneficial effects of the present invention are as follows:

[0022] The energy-saving projection outdoor lamp provided by the present invention significantly improves the energy efficiency ratio and heat dissipation efficiency of the lamp through innovative heat dissipation design and intelligent control, as follows:

[0023] (1) Significant energy-saving effect: Through a variety of heat dissipation modes based on environmental presets and the best heat dissipation strategy matched with the operating power and heat generation of the projection outdoor lamp, the lamp can automatically adjust the heat dissipation mode according to environmental conditions, such as whether there is rain and other environmental conditions and operating power, to achieve dynamic adjustment and intelligent switching of the heat dissipation mode, which can not only ensure the stable operation of the outdoor lamp, but also reduce unnecessary energy consumption and reduce the heat dissipation power consumption of the lamp. Through testing, this design structure and heat dissipation strategy can reduce the heat dissipation power consumption of the energy-saving projection outdoor lamp of the present invention by 20%-30% compared with the outdoor lamp with traditional heat dissipation structure, significantly improving the energy efficiency ratio of the lamp.

[0024] (2) Improved heat dissipation efficiency: The radiator adopts a design of central flow channel and multiple branch flow channels, combined with a cooling fan with stepless speed regulation, which can adjust the flow direction and flow rate of the cooling fluid according to environmental conditions, ensuring efficient heat dissipation in different environments; especially in rainy environments, the mixed cooling fluid of wind and rain is used to further improve the heat dissipation efficiency of the radiator, achieving efficient heat dissipation and stable heat dissipation power without increasing the heat dissipation power.

[0025] (3) Extending the life of lamps: Through the combination of active and passive heat dissipation, lamps can maintain a stable operating temperature in high temperature or high humidity environments, avoiding aging or damage of the driver module, LED full-color dot matrix light source and color temperature compensation unit components due to overheating, thereby extending the service life of outdoor projection lamps.

[0026] (4) Intelligent control: The driving module presets three heat dissipation modes, such as: the first heat dissipation mode: when the outdoor environment where the lamp is located is rainless, the heat dissipation fan draws wind from the outside to the inside as a heat dissipation fluid, driving the heat to be continuously taken out along the central flow channel to the multiple branch flow channels;

[0027] Second heat dissipation mode: when it rains outdoors, the heat dissipation fan adjusts the wind direction to be drawn from the inside to the outside, so that the diversion channel sucks in wind and rain to form a mixed heat dissipation fluid with higher heat dissipation efficiency, and the power of the heat dissipation fan is reduced to reduce power consumption;

[0028] The third cooling mode: the cooling fan is stopped, and natural wind or rain flows over the surface of the radiator. When the driver module and the LED full-color dot matrix light source are at a lower operating power, the cooling power of the driver module and the LED full-color dot matrix light source is met to achieve passive cooling;

[0029] The energy-saving projection outdoor lamp of the present invention can automatically switch the heat dissipation mode according to environmental conditions and the working state of the lamp, thereby achieving energy-saving and efficient heat dissipation, improving the working stability of the outdoor lamp, reducing the need for manual intervention, and improving the intelligence level of the lamp.

[0030] (5) Multi-function integration: The lamp integrates multiple functions such as projection direction adjustment, automatic focus, and color temperature compensation by setting up a direction adjustment platform, an electric focus module, and a color temperature compensation unit. Among them, the electric focus module, as the projection lens of the outdoor lamp, has a modular design and can quickly replace the projection lens according to different image projection requirements. This not only improves the projection effect of the lamp, but also enhances its ability to adapt to different scenes and meet diverse outdoor projection needs.

[0031] (6) Environmental protection and economic benefits: The energy-saving projection outdoor lamp of the present invention improves heat dissipation efficiency while reducing heat dissipation energy consumption, thereby achieving energy-saving and environmentally friendly outdoor image projection; thus, the lamp not only reduces the impact on the environment, but also saves electricity expenses for users, and has significant environmental protection and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of the overall axonometric structure of the energy-saving projection outdoor lamp of the present invention;

[0034] Figure 2 It is a schematic diagram of the assembly of the intermediate transmission arm, the multi-directional rotating table, the transmission light source tube, the heat sink and the electric focusing module of the present invention;

[0035] Figure 3 It is a cross-sectional structural schematic diagram of the transmission light source tube, the heat sink and the electric focusing module of the present invention;

[0036] Figure 4 It is a first isometric structural schematic diagram of the steering platform of the present invention;

[0037] Figure 5 It is a second isometric structural schematic diagram of the steering platform of the present invention.

[0038] The reference numerals are as follows:

[0039] 1. Direction adjustment platform; 11. Base bracket; 12. Stepping motor; 121. Output gear; 13. Bevel gear; 14. Output ring; 15. Output arm; 16. Intermediate transmission arm; 17. Multi-directional rotating platform; 171. Connecting end; 18. Overhead connector; 19. Waterproof cover;

[0040] 2. Transmission light source tube; 21. Control section; 22. Light source sealing section; 221. First shell; 222. Second shell; 223. Light emitting end; 23. Connection socket;

[0041] 3. Drive module;

[0042] 4. LED full-color dot matrix light source;

[0043] 5. Color temperature compensation unit; 51. Compensation light ring; 52. RGB color sensor;

[0044] 6. Cooling fan;

[0045] 7. Radiator; 71. Radiator body; 711. Open end; 72. Closing cover; 721. Closed end; 73. Central flow channel; 74. Diverter channel; 75. Radiator fins; 76. Rainwater diversion channel;

[0046] 8. Electric focus module; 81. Lens barrel; 811. Socket end; 812. Projection end; 82. Plano-convex lens; 83. Aspheric lens; 84. Biconvex lens; 85. Displacement mechanism; 86. Connecting plug;

[0047] 9. Color perception unit; 91. CMOS sensor; 92. Light intensity sensor. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0049] In a specific embodiment, an energy-saving outdoor projection lamp based on environmentally regulated heat dissipation is provided, which effectively solves the problem that the existing outdoor projection lamps generate more heat as the light power increases, the heat dissipation power accounts for a large proportion of the total power, and the energy consumption cost-effectiveness is low.

[0050] The first implementation of energy-saving projection outdoor lighting is as follows Figure 1 As shown, it includes a three-axial direction adjustment platform 1, which is driven by a motor to adjust the projection direction of the lamp in real time; and a transmission light source tube 2, in which a driving module 3 for image projection and having a waterproof and sealing function, an LED full-color dot matrix light source 4 and a color temperature compensation unit 5 are integrated, as well as a heat dissipation fan 6 integrated for heat dissipation and having a stepless speed regulation function, and a heat sink 7 that can limit the flow direction of the heat dissipation fluid; the heat sink 7 is provided with a central flow channel 73 and a plurality of branch flow channels 74 that are interconnected in the cross-sectional direction, and the plurality of branch flow channels 74 are arranged outside the circumference of the central flow channel 73; the driving module 3 and the LED full-color dot matrix light source 4 are in contact with the heat sink 7 to form heat conduction; the heat dissipation fan 6 is arranged at the central flow channel 73, and three kinds of heat dissipation preset in the driving module 3 are arranged. In thermal mode, the cooling fan 6 is used to deliver and extract cooling fluid to the central flow channel 73 when turned on, so as to change the flow direction of the cooling fluid in the central flow channel 73 and the branch flow channel 74, thereby performing active heat dissipation; or the cooling fan 6 is paused to dissipate heat naturally through the radiator 7 for passive heat dissipation, so that the outdoor lamp can adjust the heat dissipation based on the environment to achieve energy-saving projection; and an electric focusing module 8, which is installed at the light emitting end 223 of the transmission light source tube 2, and is used to adjust the focal length of the projected image, control the focal position, correct spherical aberration and astigmatism, and reduce aberration; the driving module 3 is externally connected to an AC power supply, and supplies power to the adjustment stage 1, the LED full-color dot matrix light source 4, the color temperature compensation unit 5, the cooling fan 6 and the electric focusing module 8, and provides control signals.

[0051] Specifically, regarding the three heat dissipation modes preset in the above-mentioned driving module 3:

[0052] First heat dissipation mode: when there is no rain in the outdoor environment where the lamp is located, the heat dissipation fan 6 draws wind from the outside to the inside as a heat dissipation fluid, driving the heat to be continuously taken out along the central flow channel 73 to the multiple branch flow channels 74;

[0053] The second heat dissipation mode: when it rains in the outdoor environment where the lamp is located, the heat dissipation fan 6 adjusts the wind direction to draw out from the inside to the outside, so that the diversion channel 74 sucks in wind and rain to form a mixed heat dissipation fluid with higher heat dissipation efficiency, and the power of the heat dissipation fan 6 is reduced to reduce power consumption; wherein, under the power of the exhaust of the heat dissipation fan 6, the inhaled rainwater will gradually be dispersed by the inhaled wind or air in the diversion channel 74 to form rain mist, and the rain mist is evenly mixed with the wind or air to form a mixed heat dissipation fluid.

[0054] The third heat dissipation mode: the cooling fan 6 is paused, and natural wind or rain flows over the surface of the radiator 7. When the driving module 3 and the LED full-color dot matrix light source 4 are at a lower operating power, the heat dissipation power of the driving module 3 and the LED full-color dot matrix light source 4 is met to achieve passive heat dissipation.

[0055] Through the above three heat dissipation modes, the heat dissipation modes are switched accordingly with the working power of the LED full-color dot matrix light source 4 and the driving module 3, and the heat dissipation fluid is upgraded from the wind of the ordinary heat dissipation fluid to a mixed heat dissipation fluid mixed with air and rain fog. The heat dissipation efficiency of the radiator 7 is improved from the upgrade of the heat dissipation medium, and the heat dissipation power consumption of the energy-saving projection outdoor lamp is reduced by 20%-30%.

[0056] The energy-saving projection outdoor lamp provided by the present invention significantly improves the energy efficiency ratio and heat dissipation efficiency of the lamp through innovative heat dissipation design and intelligent control. The specific beneficial effects are as follows:

[0057] (1) Significant energy-saving effect: Through a variety of heat dissipation modes based on environmental presets and the best heat dissipation strategy matched with the operating power and heat generation of the projection outdoor lamp, the lamp can automatically adjust the heat dissipation mode according to environmental conditions, such as whether there is rain and other environmental conditions and operating power, to achieve dynamic adjustment and intelligent switching of the heat dissipation mode, which can not only ensure the stable operation of the outdoor lamp, but also reduce unnecessary energy consumption and reduce the heat dissipation power consumption of the lamp. Through testing, this design structure and heat dissipation strategy can reduce the heat dissipation power consumption of the energy-saving projection outdoor lamp of the present invention by 20%-30% compared with the outdoor lamp with traditional heat dissipation structure, significantly improving the energy efficiency ratio of the lamp.

[0058] (2) Improved heat dissipation efficiency: The radiator 7 adopts a design of a central flow channel 73 and multiple branch flow channels 74, combined with a stepless speed-adjustable heat dissipation fan 6, which can adjust the flow direction and flow rate of the heat dissipation fluid according to environmental conditions, ensuring efficient heat dissipation in different environments; especially in rainy environments, the heat dissipation efficiency of the radiator 7 is further improved by using a mixed heat dissipation fluid of wind and rain, achieving efficient heat dissipation and stable heat dissipation power without increasing the heat dissipation power.

[0059] (3) Extending the life of the lamp: Through the combination of active and passive heat dissipation, the lamp can still maintain a stable operating temperature in a high temperature or high humidity environment, avoiding aging or damage of the drive module 3, LED full-color dot matrix light source 4 and color temperature compensation unit 5 due to overheating, thereby extending the service life of the projection outdoor lamp.

[0060] (4) Intelligent control: The driving module 3 presets three heat dissipation modes, including a first heat dissipation mode, a second heat dissipation mode and a third heat dissipation mode; the energy-saving projection outdoor lamp of the present invention can automatically switch the heat dissipation mode according to environmental conditions and the working state of the lamp, thereby achieving energy-saving and efficient heat dissipation, improving the working stability of the outdoor lamp, reducing the need for manual intervention, and improving the intelligence level of the lamp.

[0061] (5) Multi-function integration: The lamp integrates multiple functions such as projection direction adjustment, automatic focusing, and color temperature compensation by setting a direction adjustment platform 1, an electric focusing module 8, and a color temperature compensation unit 5. Among them, the electric focusing module 8, as a projection lens of the outdoor lamp, has a modular design and can quickly replace the projection lens according to different image projection requirements, which not only improves the projection effect of the lamp, but also enhances its ability to adapt to different scenes and meet diverse outdoor projection needs.

[0062] (6) Environmental protection and economic benefits: The energy-saving projection outdoor lamp of the present invention improves heat dissipation efficiency while reducing heat dissipation energy consumption, thereby achieving energy-saving and environmentally friendly outdoor image projection; thus, the lamp not only reduces the impact on the environment, but also saves electricity expenses for users, and has significant environmental protection and economic benefits.

[0063] As one of the optional implementations

[0064] Regarding the specific structure of the radiator 7, this embodiment Figures 1 to 3 As shown, the two ends of the radiator 7 are respectively an open end 711 and a closed end 721; the radiator 7 is provided with a closed cover 72, and the closed cover 72 is sealed and connected to the heat dissipation body 71 to form a closed end 721; the driving module 3 is packaged as a ring component; the outer side of the closed end 721 of the radiator 7 contacts with the back side of the LED full-color dot matrix light source 4 to form heat conduction, and the outer ring of the driving module 3 contacts with the inner wall of the central flow channel 73 of the radiator 7 to form heat conduction.

[0065] During application, the central flow channel 73 and the plurality of branch flow channels 74 extend from the open end 711 along the length direction of the heat sink 7 to the closed end 721 and are connected inside the closed end 721 to limit and guide the flow direction of the heat dissipation fluid.

[0066] In order to improve the heat dissipation efficiency of the heat sink 7, a design scheme with a balance between thermal conductivity and material cost is selected in terms of material, so that the heat sink 7 is a heat sink 7 composed of aluminum alloy and copper layer.

[0067] Furthermore, since the transmitted light source tube 2 is provided with a control section 21 and a light source sealing section 22; the outer shell of the control section 21 serves as a radiator 7, and the outer wall of the radiator 7 is provided with cooling fins 75, the heat dissipation body 71 and the heat dissipation fins 75 of the radiator 7 are an integrated aluminum alloy body, and the heat dissipation body 71 and the heat dissipation fins 75 are combined to improve the heat transfer efficiency of the heat dissipation body 71 to the external environment.

[0068] Copper tubes are embedded in the inner walls of the straight sections of the central flow channel 73 and the branch channel 74, and the closing cover 72 is a copper plate, which is used to improve the heat transfer efficiency of the LED full-color dot matrix light source 4 and the driving module 3 to the heat dissipation body 71; at the same time, the copper tubes embedded in the branch channel 74 can improve the heat transfer efficiency of the heat dissipation body 71 to transfer heat to the branch channel 74, and to transfer heat from the branch channel 74 to the heat dissipation fluid or mixed heat dissipation fluid sent by the cooling fan 6.

[0069] When in use, by coating the position where the closing cover 72 contacts the LED full-color dot matrix light source 4 with thermal conductive glue, and coating the position where the driving module 3 contacts the copper tube of the main channel with thermal conductive glue, the heat transfer efficiency of the LED full-color dot matrix light source 4 and the driving module 3 to the heat dissipation body 71 can be further improved.

[0070] Regarding the specific structure of the above-mentioned transmission light source tube 2, this embodiment Figures 1 to 3 As shown, the transmission light source tube 2 is provided with a control section 21 and a light source sealing section 22 . The control section 21 is composed of a heat sink 7 and a driving module 3 . The LED full-color dot matrix light source 4 and the color temperature compensation unit 5 are arranged in the light source sealing section 22 .

[0071] Among them, the light source sealing section 22 includes a first shell 221, a first sealing ring, a second shell 222 and a second sealing ring; the first shell 221 is connected to the closed end 721 of the radiator 7 by bolts, and the first sealing ring is arranged between the first shell 221 and the closed end 721 of the radiator 7; the LED full-color dot matrix light source 4 is within the range surrounded by the first shell 221; one end of the second shell 222 is the light emitting end 223, and the other end of the second shell 222 is connected to the first shell 221 by bolts, and the second sealing ring is arranged between the first shell 221 and the second shell 222.

[0072] Regarding the specific structure of the color temperature compensation unit 5 and its color temperature compensation setting, this embodiment Figure 3 As shown, the color temperature compensation unit 5 includes a compensation light ring 51 and two RGB color sensors 52; the compensation light ring 51 and the RGB color sensor 52 are both electrically connected to the driving module 3; the compensation light ring 51 is installed on the inner wall of the second shell 222 and is away from the light emitting end 223; the two RGB color sensors 52 are respectively arranged on both sides of the compensation light ring 51 in the second shell 222, respectively adjacent to the first shell 221 and the light emitting end 223.

[0073] During application, two RGB color sensors 52 arranged at different positions respectively measure the LED full-color dot matrix light source 4 to obtain color temperature data before and after color temperature compensation correction. The RGB color sensor 52 and the compensation lamp ring 51 are electrically connected to the driving module 3. The color temperature data of the light emitted by the LED full-color dot matrix light source 4 before color temperature compensation correction collected by the RGB color sensor 52 is used as input data. The color temperature data of the light emitted by the compensation lamp ring 51 collected by the RGB color sensor 52 and the light emitted by the LED full-color dot matrix light source 4 after mixing is used as target data. The color temperature and intensity of the light emitted by the compensation lamp ring 51 are controlled according to the change of the projected image through the calculation of the automatic color temperature compensation algorithm built into the driving module 3 according to the projected image, so as to realize the mixed coupling of the light before the light is emitted from the projection light source tube to the light output end 223, realize the automatic color temperature compensation, and form a closed-loop control of the color temperature compensation, so as to accurately control the color temperature of the light emitted from the correction light output end 223, and realize the color temperature of the light emitted from the light output end 223 falling within the preset color temperature range of the image.

[0074] Regarding the specific structure of the electric focusing module 8, this embodiment Figures 1 to 3 As shown, the electric focusing module 8 includes a lens barrel 81 , a plano-convex lens 82 , an aspherical lens 83 , a biconvex lens 84 and a displacement mechanism 85 .

[0075] The two ends of the lens barrel 81 are respectively a sleeve end 811 and a projection end 812. The sleeve end 811 is sleeved with the light emitting end 223, and the projection end 812 is used to emit light outward.

[0076] The displacement mechanism 85 includes a fine-motion screw linear unit, a fine-motion screw biaxial unit, a micro motor and a biaxial motor. The fine-motion screw linear unit and the fine-motion screw biaxial unit are arranged inside the lens barrel 81, and the micro motor and the biaxial motor are arranged outside the lens barrel 81 and are respectively connected to the fine-motion screw linear unit and the fine-motion screw biaxial unit in transmission.

[0077] The plano-convex lens 82, the aspheric lens 83 and the biconvex lens 84 are coaxially arranged in sequence along the axis of the lens barrel 81, and the plano-convex lens 82 is adjacent to the sleeve end 811 of the lens barrel 81, and the biconvex lens 84 is adjacent to the projection end 812 of the lens barrel 81; the aspheric lens 83 is fixed in the lens barrel 81;

[0078] The moving output ends of the micro-screw linear unit and the micro-screw dual-axis unit are respectively connected to the plano-convex lens 82 and the biconvex lens 84. The micro motor controls the plano-convex lens 82 to move toward or away from the aspheric lens 83, and the dual-axis motor controls the biconvex lens 84 to move along the X / Y axis direction of the plane.

[0079] When used, the aspherical lens 83 is fixed to the middle of the lens barrel 81 in the longitudinal direction.

[0080] Regarding the specific structure of the combination of the electric focusing module 8 and the transmission light source tube 2, this embodiment Figures 1 to 3 As shown, a connecting socket 23 is provided on the outer wall of the second shell 222, and the connecting socket 23 is electrically connected to the driving module 3; the connecting socket 23 and the connecting plug 86 extending outward from the electric focusing module 8 in the lens barrel 81 are docked and connected when the electric focusing module 8 is put on the light emitting end 223 of the second shell 222.

[0081] When in use, the electric focusing module 8 is installed while completing the electrical connection with the driving module 3, and the docking of the connecting socket 23 and the connecting plug 86 also provides a positioning point for the installation of the electric focusing module 8, forming an anti-fool structure, thereby realizing the anti-fool installation of the electric focusing module 8 and the transmitted light source tube 2.

[0082] Regarding the structure and arrangement for improving the projection image accuracy of the electric focusing module 8, the LED full-color dot matrix light source 4 and the compensation light ring 51, and reducing the power consumption along with the projection image, this embodiment is as follows: Figure 1 As shown, linear encoders are installed on both the micro-screw linear unit and the micro-screw dual-axis unit; it also includes a color perception unit 9 integrating a CMOS sensor 91 and a light intensity sensor 92, the color perception unit 9 is installed at the side of the projection end 812, the shooting end of the CMOS sensor 91 and the measuring end of the light intensity sensor 92 are facing the projection target to be detected; the color perception unit 9 collects the image and total light intensity of the projection target, calculates through the built-in algorithm of the driving module 3, and controls the electric focusing module 8 and the LED full-color dot matrix light source 4, forming a closed-loop control of the focus, aberration and light intensity of the projection target.

[0083] During application, the actual movement values ​​of the plano-convex lens 82 and the biconvex lens 84 by the micro-motion screw linear unit and the micro-motion screw dual-axis unit are sensed and collected through the provided linear encoder, and the actual movement value is compared with the preset movement data issued by the driving module 3 through the lens control algorithm built into the driving module 3 to obtain the actual positions of the plano-convex lens 82 and the biconvex lens 84, and to determine whether the movement of the plano-convex lens 82 and the biconvex lens 84 reaches the target position; if the movement of the plano-convex lens 82 and the biconvex lens 84 does not reach the target position, the difference is obtained by comparing the preset data with the actual movement value, and then the corresponding signal is given again to control the plano-convex lens 82 and the biconvex lens 84 to perform compensatory movement, thereby realizing the precise movement of the plano-convex lens 82 and the biconvex lens 84.

[0084] The CMOS sensor 91 is arranged parallel to the projection end 812, and the distribution of color blocks in the captured image is analyzed and the captured image is calculated by the edge detection algorithm to realize color and focus detection respectively. Then, the silicon photocell / photodiode is used as the light intensity sensor 92 to measure the total light intensity of the light emitted from the projection end 812. The collected data is calculated by the PID algorithm, and the feedback is used to control the LED full-color dot matrix light source 4 and the compensation light ring 51. The projected image is then adjusted and corrected by the mechanical unit that controls the lens position of the electric focus module 8, so as to realize closed-loop control from image generation to projection. In addition, the focus adjustment accuracy is controlled within ±2μm.

[0085] Thereby, the clarity and brightness of the projected image are controlled in a closed loop, and the power of the LED full-color dot matrix light source 4 and the compensation lamp ring 51 are controlled according to the clarity and brightness of the projected image, thereby reducing the light projection power consumption of the energy-saving outdoor lamp by 15% (compared with open-loop control).

[0086] Finally, through the above three heat dissipation modes, the heat dissipation power consumption of energy-saving projection outdoor lamps is reduced; through closed-loop control of the clarity and brightness of the projected image, the power of the LED full-color dot matrix light source 4 and the compensation lamp ring 51 are accurately adjusted according to the required projection effect, thereby saving the light projection power consumption of the energy-saving projection outdoor lamps; thereby, the energy-saving purpose of the projection outdoor lamps based on environmentally regulated heat dissipation is achieved by controlling the heat dissipation power consumption and the light projection power consumption.

[0087] Regarding the three-axis direction adjustment structure of the above-mentioned direction adjustment platform 1 for the projection direction of the lamp, this embodiment is as follows: Figure 2 , Figure 4 and Figure 5As shown, the steering platform 1 includes a three-axis power base composed of a base bracket 11, three stepping motors 12, three coaxially stacked bevel gears 13, three coaxially sleeved and mutually freely rotatable shaft cylinders and three coaxially sleeved output rings 14, three intermediate transmission arms 16 and a multi-directional rotating platform 17; the stepping motors 12, the bevel gears 13 and the shaft cylinders are all installed in the base bracket 11, and the rotating ends of the three stepping motors 12 are respectively installed with output gears 121, and the three stepping motors 12 form gear transmission with the three bevel gears 13 through the output gears 121, respectively, and independently control the steering of the three bevel gears 13; the three bevel gears 13 are respectively connected to the The three shaft cylinders are transmission connected, and the three shaft cylinders are coaxially transmission connected with the three output rings 14 respectively; an output arm 15 is provided on the end face of one side of the output ring 14; one end of the three intermediate transmission arms 16 are rotationally connected with the output arms 15 of the three output rings 14 respectively, and the three intermediate transmission arms 16 are arranged at a central angle of 120 degrees on the circular surface; the other ends of the three intermediate transmission arms 16 are rotationally connected to the connecting end 171 on one side of the multi-directional rotating table 17, and the three connecting ends 171 of the multi-directional rotating table 17 are arranged at a central angle of 120 degrees on the circular surface; the other side end face of the multi-directional rotating table 17 is overhead connected and fixed to the transmitted light source tube 2.

[0088] The second embodiment of the energy-saving outdoor lighting fixture based on environmentally regulated heat dissipation is as follows Figure 1 and Figure 2 As shown, the difference between this embodiment and the first embodiment is that an overhead connection member 18 is provided between the multi-directional rotating platform 17 and the transmission light source tube 2 to ensure that the inlet and outlet paths of the airflow are unobstructed.

[0089] When in use, the installation of the overhead connector 18 can ensure the flow rate of the cooling fluid in and out of the central channel 73 and the branch channel 74, improve the heat dissipation efficiency of the radiator 7 of the transmitted light source tube 2, avoid overheating of the driving module 3, the LED full-color dot matrix light source 4 and the compensation light ring 51 and affect the clarity, color and brightness of the projected image, and even avoid damage to the driving module 3, the LED full-color dot matrix light source 4 and the compensation light ring 51 due to overheating, thereby improving the reliability of energy-saving projection outdoor lamps.

[0090] In addition, a waterproof cover 19 is installed between the base support 11 and the overhead connector 18. The waterproof cover 19 can prevent rainwater on rainy days or leaves, dust, etc. on non-rainy days from entering the base support 11 of the turning platform 1, thereby reducing the wear of the transmission mechanism in the base support 11 and improving the durability and stability of the turning platform 1.

[0091] A third embodiment of an energy-saving outdoor lighting fixture based on environmentally regulated heat dissipation is as follows: Figure 1 and Figure 3As shown, the difference between this embodiment and the first embodiment is that a rainwater diversion channel 76 is provided on the outer wall of the radiator 7. The rainwater diversion channel 76 is inclined toward the open end 711 of the radiator 7, extends inward from the outer wall of the radiator 7, and is interlaced with the diversion channel 74.

[0092] In application, when the energy-saving outdoor lighting fixture is performing projection work, the outdoor lighting fixture is tilted upward when projecting images with the adjustment of the phase adjustment table. The tilt direction of the rainwater diversion channel 76 is just tilted towards the ground with the open end 711 of the radiator 7. When it rains, the driving module 3 calls the second heat dissipation mode, and the rainwater can enter the branch channel 74 under the limited guidance of the rainwater diversion channel 76. However, due to gravity, the rainwater will flow to the open end 711 of the radiator 7 in the branch channel 74. Since the exhaust direction of the cooling fan 6 is from inside to outside at this time, the branch channel 74 will inhale air. At this time, the movement direction of the branch channel 74 is opposite to that of the inhaled air. The rainwater will be dispersed by the power of the air to form rain mist, and move along the branch channel 74 to the main channel, thereby forming a mixed heat dissipation fluid of air or wind and rain mist, which greatly improves the heat transfer capacity of the heat dissipation fluid of ordinary air or wind. By upgrading the heat transfer capacity of the heat dissipation fluid, the heat dissipation efficiency inside the radiator 7 is improved, so that the radiator 7 can still maintain efficient heat dissipation when the heat dissipation power of the cooling fan 6 is reduced. The function of the rainwater diversion channel 76 is to increase the amount of rainwater entering the wind channel, and to ensure that a sufficient amount of rain mist is formed in the diversion channel 74 when the power of the cooling fan 6 is reduced, thereby further ensuring the heat dissipation effect of the energy-saving projection outdoor lamp in the second heat dissipation mode and maintaining the stability of the operation of the energy-saving projection outdoor lamp.

[0093] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described.

Claims

1. An energy-saving outdoor projection lamp based on environmentally regulated heat dissipation, characterized in that: It includes a three-axis steering platform, which is driven by a motor to adjust the projection direction of the lamp in real time; and a transmission light source tube, wherein the projection light source tube integrates a waterproof and sealed driving module for image projection, an LED full-color dot matrix light source and a color temperature compensation unit, as well as an integrated cooling fan for heat dissipation and stepless speed regulation, and a radiator capable of limiting the flow direction of the cooling fluid; The heat sink is provided with a central flow channel and a plurality of branch flow channels which are interconnected in the cross-sectional direction, and the branch flow channels are arranged outside the circumference of the central flow channel; the driving module and the LED full-color dot matrix light source are both in contact with the heat sink to form heat conduction; the cooling fan is arranged at the central flow channel; When there is no rain in the outdoor environment where the lamp is located, the heat dissipation fan draws wind from the outside to the inside as a heat dissipation fluid, driving the heat to be continuously taken out along the central flow channel to the multiple branch flow channels; When it rains outdoors, the cooling fan adjusts the wind direction to draw out wind from the inside to the outside, so that the diversion channel sucks in wind and rain to form a mixed cooling fluid with higher cooling efficiency, and the power of the cooling fan is reduced to reduce power consumption; and an electric focusing module, which is installed at the light emitting end of the transmission light source tube and is used to adjust the focal length of the projected image, control the focal position, correct spherical aberration and astigmatism, and reduce aberration; The driving module is externally connected to an AC power supply, and supplies power to the direction adjustment platform, the LED full-color dot matrix light source, the color temperature compensation unit, the cooling fan and the electric focusing module, and provides control signals.

2. The energy-saving projection outdoor lamp according to claim 1, characterized in that: The two ends of the radiator are respectively an open end and a closed end, the central flow channel and the plurality of branch flow channels extend from the open end along the length direction of the radiator to the closed end, and are connected in the closed end; The driving module is packaged as a ring-shaped component; the outer side of the closed end of the heat sink contacts the back side of the LED full-color dot matrix light source to form heat conduction, and the outer ring of the driving module contacts the inner wall of the central flow channel to form heat conduction.

3. The energy-saving projection outdoor lamp according to claim 2, characterized in that: The radiator is a heat dissipation device composed of an aluminum alloy and a copper layer.

4. The energy-saving projection outdoor lamp according to claim 3, characterized in that: The transmission light source tube is provided with a control section and a light source sealing section; The outer shell of the control section is the radiator, the outer wall of the radiator is provided with cooling fins, and the heat dissipation body of the radiator and the cooling fins are an integrated aluminum alloy body; The LED full-color dot matrix light source and the color temperature compensation unit are arranged in the light source sealing section.

5. The energy-saving projection outdoor lamp according to claim 4, characterized in that: The radiator is provided with a closed cover, which is sealed and connected to the heat dissipation body to form the closed end; the closed cover is a copper plate; the position where the closed cover contacts the LED full-color dot matrix light source is coated with thermal conductive glue; Copper tubes are embedded in the inner walls of the straight sections of the central flow channel and the branch flow channel; and heat-conducting glue is applied between the contact positions of the driving module and the copper tube of the main flow channel.

6. The energy-saving projection outdoor lamp according to claim 4, characterized in that: The light source sealing section comprises a first shell, a first sealing ring, a second shell and a second sealing ring; The color temperature compensation unit includes a compensation light ring and two RGB color sensors; The compensation light ring and the RGB color sensor are both electrically connected to the driving module; The first housing is connected to the closed end of the radiator by bolts, and the first sealing ring is arranged between the first housing and the closed end of the radiator; The LED full-color dot matrix light source is within the range surrounded by the first housing; One end of the second housing is the light emitting end, the other end of the second housing is connected to the first housing by bolts, and the second sealing ring is arranged between the first housing and the second housing; The compensation light ring is installed on the inner wall of the second housing and is far away from the light emitting end; The two RGB color sensors are respectively arranged on two sides of the compensation light ring in the second housing, and are respectively adjacent to the first housing and the light emitting end.

7. The energy-saving projection outdoor lamp according to claim 6, characterized in that: A connection socket is provided on the outer wall of the second housing, and the connection socket is electrically connected to the driving module; The connection socket and the connection plug of the electric focusing module are butt-connected when the electric focusing module is sleeved on the light emitting end.

8. The energy-saving projection outdoor lamp according to claim 1, characterized in that: The electric focusing module comprises a lens barrel, a plano-convex lens, an aspheric lens, a biconvex lens and a displacement mechanism; The two ends of the lens barrel are respectively a sleeve end and a projection end, and the sleeve end is sleeved with the light emitting end; The displacement mechanism comprises a fine-motion screw linear unit, a fine-motion screw biaxial unit, a micro-motor and a biaxial motor, wherein the fine-motion screw linear unit and the fine-motion screw biaxial unit are arranged inside the lens barrel, and the micro-motor and the biaxial motor are arranged outside the lens barrel and are respectively connected to the fine-motion screw linear unit and the fine-motion screw biaxial unit in transmission; The plano-convex lens, the aspheric lens and the biconvex lens are coaxially arranged in sequence along the axis of the lens barrel, and the plano-convex lens is adjacent to the sleeve end of the lens barrel, and the biconvex lens is adjacent to the projection end of the lens barrel; the aspheric lens is fixed in the lens barrel; The moving output ends of the micro-screw linear unit and the micro-screw dual-axis unit are respectively connected to the plano-convex lens and the biconvex lens, the micro motor controls the plano-convex lens to move toward or away from the aspheric lens, and the biconvex lens controls the biconvex lens to move along the X / Y axis direction of the plane.

9. The energy-saving projection outdoor lamp according to claim 1, characterized in that: The micro-motion screw linear unit and the micro-motion screw dual-axis unit are both equipped with linear encoders; It also includes a color perception unit integrating a CMOS sensor and a light intensity sensor, wherein the color perception unit is installed at the side of the projection end, and the shooting end of the CMOS sensor and the measuring end of the light intensity sensor face the projection target to be detected; The color perception unit collects the image and total light intensity of the projection target, calculates through the built-in algorithm of the driving module, and controls the electric focusing module and the LED full-color dot matrix light source to form a closed-loop control of the focus, aberration and light intensity of the projection target.

10. The energy-saving projection outdoor lamp according to claim 1, characterized in that: The steering platform comprises a three-axis power base consisting of a base bracket, three stepping motors, three coaxially stacked bevel gears, three coaxially sleeved and mutually freely rotating shaft cylinders, and three coaxially sleeved output rings, three intermediate transmission arms and a multi-directional rotating platform; The stepper motor, the bevel gear and the shaft cylinder are all installed in the base bracket, and the rotating ends of the three stepper motors are respectively installed with output gears. The three stepper motors form gear transmission with the three bevel gears through the output gears, and the three bevel gears are independently controlled to turn in different directions. The three bevel gears are respectively connected to the three shaft cylinders in transmission, and the three shaft cylinders are respectively connected to the three output rings in coaxial transmission; An output arm is provided on one end face of the output ring; One end of the three intermediate transmission arms is rotatably connected to the output arms of the three output rings respectively, and the three intermediate transmission arms are arranged on a circular surface at a central angle of 120 degrees; The other ends of the three intermediate transmission arms are rotatably connected to the connection end on one side of the multi-directional rotating platform, and the three connection ends of the multi-directional rotating platform are arranged on a circular surface at a central angle of 120 degrees; The other side end surface of the multi-directional rotating platform is overhead connected and fixed to the transmission light source tube.

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