Low-carbon intelligent dimming lighting system

Abstract

The system comprises a substrate, a plurality of independent light source modules arranged in a honeycomb shape are arranged on the substrate, each module is integrated with an axially telescopic light guide pipe, a worm gear transmission mechanism and a bimetallic strip temperature control light reflection structure, and a V-shaped groove optical structure is arranged on the inner surface of the light guide pipe; the tail end of the light guide pipe is provided with a rotatable polaroid, the worm gear transmission mechanism comprises a worm, the worm is of a self-locking structure, the bimetallic strip temperature control light reflection structure comprises an annular heat pipe surrounding the light source and heat dissipation fins in linkage with the light guide pipe, the substrate is made of aluminum alloy, the light guide pipe capable of stretching and retracting axially is made of polycarbonate, and the light guide pipe capable of stretching and retracting axially is made of polycarbonate. And the wall thickness is 0.5-1mm, the bimetallic strip temperature control reflection structure can be a brass composite layer, through the synergistic effect of the bimetallic strip temperature control reflection structure and the telescoping of the light guide pipe, the composite adjustment of the light angle and intensity is realized, the light modulation range is expanded, the light efficiency utilization rate is improved, and the energy consumption is reduced at the same time.

Description

Technical Field

[0001] The present invention belongs to the technical field of low-carbon lighting, and in particular relates to a low-carbon intelligent dimming lighting system. Background Art

[0002] Traditional dimming lighting systems usually use a single dimming method, such as changing the power of the light source or mechanically blocking the light. There are problems such as limited dimming range, high energy consumption, and insufficient heat dissipation efficiency. In the prior art, the light guide and the reflective structure often work independently, and it is impossible to achieve a composite dimming effect, resulting in low light efficiency utilization; the heat dissipation system is mostly passive in design and difficult to adapt to dynamic load changes; the polarization adjustment mechanism is easily affected by dust pollution or mechanical jamming, and the long-term stability is insufficient. In addition, the traditional heat pipe layout is constrained by gravity, and the working fluid reflux efficiency decreases under complex installation postures, affecting the heat dissipation performance. Therefore, there is an urgent need for a low-carbon lighting system that can coordinate optical adjustment, dynamic heat dissipation and intelligent protection to meet the needs of efficient, reliable and adaptive lighting. Summary of the invention

[0003] To achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a low-carbon intelligent dimming lighting system, the system includes: a substrate, a plurality of independent light source modules arranged in a honeycomb shape are arranged on the substrate, each module is integrated with an axially retractable light pipe, a worm gear transmission mechanism and a bimetallic temperature control reflective structure, the inner surface of the light pipe is provided with a V-groove optical structure, the end of the light pipe is equipped with a rotatable polarizer, the worm gear transmission mechanism includes a worm, the worm adopts a self-locking structure, and the bimetallic temperature control reflective structure includes a ring heat pipe surrounding the light source and a heat dissipation fin arranged in linkage with the light pipe. The substrate is made of aluminum alloy, the axially retractable light pipe is made of polycarbonate, and the wall thickness is 0.5~1mm. The bimetallic temperature control reflective structure can be selected as a brass composite layer, and the groove depth of the V-groove optical structure is 0.2mm, and the angle is 60°. The diameter of the rotatable polarizer can be selected as 8mm and the thickness is 0.1mm.

[0004] Based on the above technical features, the bimetallic strip adjusts the curvature of the reflective cup as the temperature changes, and forms a composite dimming effect with the expansion and contraction of the light pipe. The expansion area of ​​the heat sink fins is positively correlated with the extension length of the light pipe, achieving adaptive heat dissipation capacity. When the polarization adjustment system is stuck, the differential gear set automatically triggers overload protection; when the internal pressure of the heat pipe is abnormal, the bellows compensator absorbs the volume change to maintain the integrity of the seal.

[0005] As an improvement of the present invention, the system also includes a light pipe telescopic structure, which includes an umbrella-shaped driving structure. In the umbrella-shaped driving structure, the central main axis and the elastic connecting rod form a parallelogram linkage mechanism, and a torque limiter is integrated at each universal joint node.

[0006] Based on the above technical features, the parallelogram linkage mechanism converts the rotational motion of the central main shaft into the axial translation of the light guide tube, and the pre-tightening force design of the elastic connecting rod ensures the synchronous movement of each light guide tube. The torque limiter automatically disengages the transmission under abnormal loads to protect the precision optical components. When some light guide tubes stop moving due to external obstacles, the universal joint nodes allow the remaining light guide tubes to continue to expand and contract, and the system automatically redistributes the driving force through the elastic deformation of the connecting rod to maintain the stability of the overall optical performance.

[0007] As an improvement of the present invention, the system further includes a polarization adjustment system, the polarization adjustment system includes a differential gear set, the planetary gears in the differential gear set adopt an asymmetric tooth profile design, the system further includes a dust-proof wiper and a swing arm mechanism, and the dust-proof wiper is coupled with the rotational motion through the swing arm mechanism.

[0008] Based on the above technical features, the asymmetric tooth profile design causes the two polarization filter films to generate different rotational speeds, realizes the non-linear adjustment of the overlapping area, and conforms to the logarithmic perception characteristic of the human eye to brightness changes. The swing arm mechanism converts the rotational kinetic energy of the polarizer into the reciprocating motion of the dust-proof wiper, and the flexible material at the edge of the wiper avoids scratching the optical surface while cleaning, maintaining the long-term light transmittance.

[0009] As an improvement of the present invention, the annular heat pipe includes an evaporation section and a condensation section, the evaporation section and the condensation section are arranged in a three-dimensional cross layout to form a three-dimensional heat circulation path, and capillary microstructures are provided on the inner surface of the pipe wall, and the return of the working fluid does not depend on the direction of gravity.

[0010] Based on the above technical features, the double helix layout forms a countercurrent heat exchange of steam rising and liquid reflux, and the X-shaped bridging member guides the cross-transfer of heat flow to enhance the temperature field uniformity. The fractal microchannels expand the range of action of the capillary force through a hierarchical structure, and the super-hydrophilicity of the nano-zinc oxide coating ensures that the working fluid can form a continuous liquid film in all installation postures. The micro-vortices generated by the pit array destroy the thermal boundary layer.

[0011] As an improvement of the present invention, the evaporation section and the condensation section are arranged in a spatial spiral staggered manner to form a three-dimensional winding shape of a double helix, and the heat flow paths are crossed between adjacent pipe sections through an X-shaped bridging member, the bridging angle is 55°-65°, the working fluid steam channel adopts a tapered-converging Venturi tube structure to accelerate the steam transmission from the evaporation section to the condensation section, and a vortex generator is arranged in the liquid return channel.

[0012] As an improvement of the present invention, the capillary structure includes trapezoidal main grooves axially arranged on the inner surface of the pipe wall as the main return path of the working fluid, periodic pit arrays are opened on the side walls of the grooves to form local vortices to promote phase change, dendritic fractal microchannels are formed on the surface of the main grooves by laser microfabrication, and a hydrophilic nano-zinc oxide coating is provided at the end of the microchannels.

[0013] As an improvement of the present invention, when the light guide tube fully extends, the central illuminance drops by 42% ± 3%, and when the overlapping area of the polarizing plates is 50%, the color temperature shift is < 150K.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1) Through the synergistic effect of the bimetallic strip temperature-controlled light-reflecting structure and the telescoping of the light guide tube, the compound adjustment of the light angle and intensity is realized, the dimming range is expanded, the light efficiency utilization rate is improved, and the energy consumption is reduced; 2) The linkage design of the expanded area of the heat dissipation fins and the extended length of the light guide tube enables the heat dissipation capacity to be dynamically adjusted according to the light source load, avoiding overheating or redundant heat dissipation, and improving the energy efficiency ratio of the system; 3) The differential gear set and the torque limiter trigger overload protection when the polarization adjustment system is jammed, preventing component damage, and the bellows compensator maintains the tightness of the heat pipe to ensure long-term stable operation; 4) The parallelogram linkage mechanism and the elastic connecting rod endow the telescoping of the light guide tube with fault tolerance. When partially blocked, the overall optical performance can still be maintained through force redistribution, adapting to complex environments; 5) The dust scraping blade is coupled with the rotational movement of the polarizing plate to automatically clean the optical surface, avoiding the decrease in light transmittance caused by dust accumulation and extending the service life of the system; 6) The three-dimensional heat circulation path and the capillary microstructure design of the annular heat pipe get rid of the dependence on gravity, realize multi-posture efficient heat dissipation, and the cross layout and micro-vortices strengthen heat transfer, improving the temperature uniformity; 7) The adjustment of the polarizing plate driven by the asymmetric gear conforms to the logarithmic perception characteristics of the human eye, making the brightness change more natural, and the color temperature stability design ensures visual comfort; 8) Through optical path optimization, dynamic heat dissipation and low-power drive, energy waste is reduced to meet the requirements of green lighting. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the intelligent dimming system described in the present invention; Figure 2 It is a schematic diagram of the V-groove optical structure of the intelligent dimming system described in the present invention. Detailed Embodiments

[0016] The following further clarifies the present invention in conjunction with the drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0017] Embodiment: As Figure 1As shown, a low-carbon intelligent dimming lighting system, the system includes: a substrate, a plurality of independent light source modules 100 arranged in a honeycomb shape are arranged on the substrate, each module is integrated with an axially retractable light pipe 110, a worm gear transmission mechanism 120 and a bimetallic temperature control reflective structure 130, the inner surface of the light pipe is provided with a V-groove optical structure 140, the end of the light pipe is equipped with a rotatable polarizer 150, the worm gear transmission mechanism includes a worm, the worm adopts a self-locking structure, and the bimetallic temperature control reflective structure includes a ring heat pipe surrounding the light source and a heat dissipation fin arranged in linkage with the light pipe. The substrate is made of aluminum alloy, the axially retractable light pipe is made of polycarbonate, and the wall thickness is 0.5~1mm. The bimetallic temperature control reflective structure can be selected as a brass composite layer, the groove depth of the V-groove optical structure is 0.2mm, and the angle is 60°. The diameter of the rotatable polarizer can be selected as 8mm and the thickness is 0.1mm.

[0018] The bimetallic strip adjusts the curvature of the reflective cup as the temperature changes, and forms a composite dimming effect with the expansion and contraction of the light pipe. The expansion area of ​​the heat sink fins is positively correlated with the extension length of the light pipe, achieving adaptive heat dissipation capacity. When the polarization adjustment system is stuck, the differential gear set automatically triggers overload protection; when the internal pressure of the heat pipe is abnormal, the bellows compensator absorbs the volume change to maintain the integrity of the seal.

[0019] Furthermore, the system also includes a light pipe telescopic structure, which includes an umbrella-shaped drive structure. In the umbrella-shaped drive structure, the central spindle and the elastic connecting rod form a parallelogram linkage mechanism, and a torque limiter is integrated at each universal joint node. The parallelogram linkage mechanism converts the rotational motion of the central spindle into the axial translation of the light pipe, and the preload design of the elastic connecting rod ensures the synchronous movement of each light pipe. The torque limiter automatically releases the transmission under abnormal load to protect the precision optical components. When part of the light pipe stops moving due to external force, the universal joint node allows the remaining light pipes to continue to telescope, and the system automatically redistributes the driving force through the elastic deformation of the connecting rod to maintain the stability of the overall optical performance.

[0020] Furthermore, the system also includes a polarization adjustment system, which includes a differential gear set, in which the planetary gears have an asymmetric tooth shape. The system also includes a dust scraper and a swing arm mechanism, and the dust scraper is coupled to the rotational motion through the swing arm mechanism.

[0021] The asymmetric tooth design makes the two polarizing filters produce different rotation speeds, achieving nonlinear adjustment of the overlapping area, which is in line with the logarithmic perception characteristics of the human eye to brightness changes. The swing arm mechanism converts the rotational kinetic energy of the polarizing film into the reciprocating motion of the dustproof scraper. The flexible material on the edge of the scraper avoids scratching the optical surface while cleaning, maintaining long-term light transmittance.

[0022] Furthermore, the annular heat pipe includes an evaporation section and a condensation section. The evaporation section and the condensation section are arranged in a three-dimensional cross layout to form a three-dimensional heat circulation path. The inner surface of the pipe wall is provided with a capillary microstructure, and the return of the working fluid does not depend on the direction of gravity.

[0023] The double-helix layout forms a countercurrent heat exchange of steam rising and liquid reflux. The X-shaped bridging member guides the cross-transfer of heat flow, enhancing the uniformity of the temperature field. The fractal microchannel expands the range of capillary force action through a hierarchical structure. The super-hydrophilicity of the nano-zinc oxide coating ensures that a continuous liquid film can be formed in all installation postures of the working fluid. The micro-vortices generated by the pit array destroy the thermal boundary layer.

[0024] Furthermore, the evaporation section and the condensation section are arranged in a spatially spiral and staggered manner to form a three-dimensional winding shape of a double helix. The heat flow path is crossed between adjacent pipe sections through an X-shaped bridging member, and the bridging angle is 55° - 65°. The working fluid steam channel adopts a converging-diverging Venturi tube structure to accelerate the steam delivery from the evaporation section to the condensation section, and a vortex generator is arranged in the liquid return channel.

[0025] Furthermore, the capillary structure includes trapezoidal main grooves axially arranged on the inner surface of the pipe wall as the main return path of the working fluid. Periodic pit arrays are formed on the side walls of the grooves to form local vortices to promote phase change. Dendritic fractal microchannels are formed on the surface of the main grooves by laser microfabrication, and a hydrophilic nano-zinc oxide coating is arranged at the end of the microchannels.

[0026] Furthermore, when the light guide tube extends completely, the central illuminance drops by 42% ± 3%, and when the overlapping area of the polarizing plates is 50%, the color temperature shift is < 150K.

[0027] It should be noted that the above content only illustrates the technical idea of the present invention and cannot be used to limit the protection scope of the present invention. For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements all fall within the protection scope of the claims of the present invention.

Claims

1. A low-carbon intelligent dimming lighting system, characterized in that, The system includes: A substrate is provided with a plurality of independent light source modules arranged in a honeycomb shape, each module is integrated with an axially retractable light pipe, a worm gear transmission mechanism and a bimetallic temperature-controlled reflective structure, the inner surface of the light pipe is provided with a V-groove optical structure, the end of the light pipe is equipped with a rotatable polarizer, the worm gear transmission mechanism includes a worm, the worm adopts a self-locking structure, and the bimetallic temperature-controlled reflective structure includes a ring-shaped heat pipe surrounding the light source and a heat dissipation fin linked to the light pipe.

2. The low-carbon intelligent dimming lighting system according to claim 1, characterized in that, The system also includes a light pipe telescopic structure, which includes an umbrella-shaped driving structure. In the umbrella-shaped driving structure, the central main shaft and the elastic connecting rod form a parallelogram linkage mechanism, and a torque limiter is integrated at each universal joint node.

3. The low-carbon intelligent dimming lighting system according to claim 1, characterized in that, The system also includes a polarization adjustment system, which includes a differential gear set, in which the planetary gears are designed with an asymmetric tooth shape, and a dust scraper and a swing arm mechanism, wherein the dust scraper is coupled with the rotational motion through the swing arm mechanism.

4. The low-carbon intelligent dimming lighting system according to claim 1, wherein The annular heat pipe comprises an evaporation section and a condensation section, the evaporation section and the condensation section are arranged in a three-dimensional cross pattern to form a three-dimensional heat circulation path, the inner surface of the pipe wall is provided with a capillary microstructure, and the working fluid reflux does not depend on the direction of gravity.

5. The low-carbon intelligent dimming lighting system according to claim 4, characterized in that, The evaporation section and the condensation section are arranged in a spatial spiral staggered manner to form a double helix three-dimensional winding shape. The heat flow paths are crossed by an X-shaped bridging component between adjacent pipe sections. The bridging angle is 55°~65°. The working fluid steam channel adopts a gradually converging and expanding Venturi tube structure to accelerate the steam transportation from the evaporation section to the condensation section. A vortex generator is arranged in the liquid reflux channel.

6. The low-carbon intelligent dimming lighting system according to claim 4, characterized in that The capillary structure includes a trapezoidal main groove arranged axially on the inner surface of the tube wall, which serves as the main channel for the working medium to reflux. A periodic pit array is opened on the side wall of the groove to form a local eddy current to promote phase change. The surface of the main groove is formed into a dendritic fractal microchannel by laser micromachining, and a lyophilic nano zinc oxide coating is set at the end of the microchannel.

7. The low-carbon intelligent dimming lighting system according to claim 1, wherein, When the light guide is fully extended, the central illumination decreases by 42%±3%, and the color temperature shift is <150K when the overlapping area of ​​the polarizers is 50%.

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