Energy-saving outdoor wall lighting device based on efficient heat dissipation structure

Abstract

The invention relates to the technical field of energy-saving lighting, in particular to an energy-saving outdoor wall lighting device based on an efficient heat dissipation structure, which comprises an LED module, a heat dissipation module and a cooperative control module, the LED module is connected with the heat dissipation module, heat energy of the LED module is transmitted to the heat dissipation module, and the cooperative control module is electrically connected with the LED module and the heat dissipation module; one side of the heat conduction substrate is in contact connection with a heat source of the LED module, the other side of the heat conduction substrate is fixedly connected with one end of a plane of the heat dissipation fin, the dynamic convection air channel is rotatably installed outside the LED module through a bearing and a driving motor, and the dynamic convection air channel wraps the heat dissipation fin in the inner space of the dynamic convection air channel; air ports of the air inlet channel and the air outlet channel are opposite and communicated, and the cooling fins are arranged between the air inlet channel and the air outlet channel. By optimizing the connection mode and the dynamic control mechanism of the LED module and the heat dissipation module, the heat dissipation efficiency is remarkably improved, the energy consumption is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of energy-saving lighting, and particularly to an energy-saving outdoor wall lighting device based on an efficient heat dissipation structure. Background Art

[0002] As an important part of urban infrastructure, outdoor lighting devices are widely used in scenarios such as roads and building facades. However, the existing technologies still have significant defects in the heat dissipation efficiency, environmental adaptability, and energy-saving control of high-power LED lighting devices, which are specifically manifested in the following aspects:

[0003] Traditional outdoor lamps mostly rely on passive heat dissipation designs (such as aluminum fins, natural convection) or simple active heat dissipation (such as fixed-speed fans), with a single heat dissipation path and high thermal resistance. For example, the design of an aluminum substrate combined with heat dissipation holes can achieve basic heat dissipation, but it is easily blocked in environments such as high humidity and salt spray erosion, resulting in a sharp drop in heat dissipation efficiency;

[0004] Outdoor lamps face multiple challenges such as rainwater penetration, salt spray corrosion, and dust accumulation. Although some technologies achieve basic protection through dust-proof nets and waterproof covers, their static designs are difficult to adapt to dynamic environmental changes, and current energy-saving control strategies are mostly limited to brightness adjustment or timed switching, without deep linkage with the heat dissipation state.

[0005] Due to the above defects in the existing technologies, the lamp life is shortened, the maintenance cost is increased, and energy is wasted, seriously restricting the sustainability of the construction of smart cities. Therefore, there is an urgent need for a technical solution that integrates an efficient heat dissipation structure, environmental adaptive protection, and intelligent collaborative control to break through the bottleneck of traditional designs and meet the long-term stable operation requirements in complex outdoor scenarios. Summary of the Invention

[0006] In order to solve the problems existing in the prior art, the present invention provides an energy-saving outdoor wall lighting device based on an efficient heat dissipation structure.

[0007] The technical solution provided by the embodiments of the present invention is as follows:

[0008] The energy-saving outdoor wall lighting device based on an efficient heat dissipation structure provided by the embodiments of the present invention includes an LED module, a heat dissipation module, and a collaborative control module, wherein the LED module is connected to the heat dissipation module to transfer the heat energy of the LED module to the heat dissipation module, and the collaborative control module is electrically connected to the LED module and the heat dissipation module;

[0009] The heat dissipation module comprises a heat-conducting substrate, heat-dissipating fins and a dynamic convection air duct, wherein one side of the heat-conducting substrate is in contact with and connected to the heat source of the LED module, and the other side of the heat-conducting substrate is fixedly connected to one end of the plane of the heat-dissipating fins; the dynamic convection air duct is rotatably mounted outside the LED module through a bearing and a driving motor, and the dynamic convection air duct wraps the heat-dissipating fins in its internal space;

[0010] The dynamic convection air duct comprises an air inlet and an air outlet, the air outlets of the air inlet and the air outlet are opposite and connected, the heat dissipation fins are located in the middle of the air inlet and the air outlet, and the minimum air outlet cross-sectional area of the air inlet is smaller than the minimum air outlet cross-sectional area of the air outlet.

[0011] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention include at least:

[0012] The use of thermal conductive substrates, heat pipes and dynamic convection ducts significantly improves the heat dissipation rate and reduces the efficiency loss or damage of LED modules due to overheating. The system dynamically adjusts the LED brightness according to environmental changes to avoid unnecessary energy consumption. At the same time, the efficient heat dissipation structure also reduces energy loss and achieves energy-saving effects. Combined with intelligent control, the phenomenon of excessive lighting and excessive heat dissipation is reduced. The high efficiency of the heat dissipation system ensures that the LED module operates at a lower temperature, prolongs the service life of LED lamps, and reduces failures or performance degradation caused by overheating. The collaborative control module performs intelligent adjustments based on a variety of environmental parameters to achieve automated management of the equipment, adapt to the lighting and heat dissipation requirements in different environments, and provide a high-quality user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 Schematic diagram of an energy-saving outdoor wall lighting device based on a high-efficiency heat dissipation structure provided by an embodiment of the present invention Figure I ;

[0015] Figure 2 Schematic diagram of an energy-saving outdoor wall lighting device based on a high-efficiency heat dissipation structure provided by an embodiment of the present invention Figure II ;

[0016] Figure 3 Schematic diagram of an energy-saving outdoor wall lighting device based on a high-efficiency heat dissipation structure provided by an embodiment of the present invention Figure III ;

[0017] Figure 4 Schematic diagram of the framework of the collaborative control module in the energy-saving outdoor wall lighting device based on an efficient heat dissipation structure provided by an embodiment of the present invention;

[0018] Figure 5 Flowchart of the steps for establishing a heat dissipation parameter - lighting brightness mapping model based on the parameters of the environmental perception unit.

[0019] In the figure: 1 - LED module, 2 - heat dissipation module, 21 - heat-conducting substrate, 22 - heat dissipation fins, 23 - dynamic convection air duct, 24 - sealing cover, 25 - electrostatic adsorption net, 26 - heat pipe. Detailed implementation manners

[0020] Next, the technical solutions in the present invention will be described in conjunction with the accompanying drawings. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative ways to implement them; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0021] It should be pointed out that in the specification, when referring to "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc., it indicates that the described embodiment may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, when combining an embodiment to describe a specific feature, structure or characteristic, implementing such a feature, structure or characteristic in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0022] Generally, the terms can be understood at least in part from their use in the context. For example, at least in part depending on the context, the term "one or more" used herein can be used to describe any feature, structure or characteristic in a singular sense, or can be used to describe a combination of features, structures or characteristics in a plural sense. In addition, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but instead, at least in part depending on the context, allowing for the existence of other factors that may not be explicitly described.

[0023] It can be understood that the meanings of "on...", "above...", and "over..." in the present invention should be interpreted in the broadest manner, so that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intermediate features or layers therebetween, and "above..." or "over..." not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intermediate features or layers therebetween.

[0024] In addition, spatial relative terms such as "under", "below", "lower", "above", "upper", etc. may be used herein for convenience of description to describe the relationship of one element or feature with another or other elements or features, as shown in the drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device may be oriented in other ways, and the spatial relative descriptors used herein may be interpreted accordingly.

[0025] As Figures 1 to 5 shown, an embodiment of the present invention provides an energy-saving outdoor wall lighting device based on an efficient heat dissipation structure. The LED module 1 serves as a light source, and a large amount of heat energy is generated during its operation. To ensure the normal operation of the LED module 1 and prevent performance degradation or damage caused by overheating, the LED module 1 is connected to the heat dissipation module 2 through the heat conduction substrate 21. One side of the heat conduction substrate 21 is in direct contact with the heat source of the LED module 1, and the other side is fixedly connected to one end of the heat dissipation fin 22, so as to ensure that the heat of the LED module 1 can be efficiently transferred to the heat dissipation fin 22 for dissipation.

[0026] The heat dissipation module 2 further includes a dynamic convection air duct 23 system, which is installed outside the LED module 1 through bearings and drive motors, and the air duct system is rotatable. The air duct forms a closed air flow space by wrapping the heat dissipation fin 22 inside, so that air can flow between the air inlet duct and the air outlet duct, thereby further accelerating heat dissipation. The air inlet and outlet of the air duct are opposite and penetrate, and the minimum air inlet cross-sectional area of the air inlet duct is smaller than the air outlet area of the air outlet duct. This design can ensure the acceleration of air flow and improve the heat dissipation effect.

[0027] The cooperative control module is electrically connected to the LED module 1 and the heat dissipation module 2. The control module can not only adjust the brightness of the LED module 1 through temperature sensing, but also adjust parameters such as the angle of the air duct and the opening and closing state of the air outlet according to real-time environmental changes, so as to optimize the heat dissipation effect. The control module can dynamically adjust the operating states of the air duct and the LED according to the heat dissipation requirements.

[0028] The close combination of the heat conduction substrate 21 and the heat dissipation fin 22 enables heat to be quickly transferred from the LED module 1 to the heat dissipation module 2 and then dissipated through air flow. The design of the dynamic convection air duct 23 enables air flow to be formed between the air inlet and the air outlet, thereby improving the heat dissipation efficiency of the heat dissipation fin 22. The adjustable structure of the air duct ensures the optimization of the air flow and the enhancement of the heat dissipation effect.

[0029] The core function of the collaborative control module is to adjust the rotation angle of the air duct, the opening and closing states of the air inlet and outlet, and the brightness of LED module 1 according to real-time data. By integrating environmental sensors (such as temperature and humidity sensors, dust sensors, etc.), the system can obtain the surrounding environmental data in real time and adjust the device operating state based on this data. For example, when the detected temperature is too high, the system can automatically adjust the air duct angle or increase the vibration frequency of the heat dissipation fins 22 to accelerate heat dissipation.

[0030] In a possible implementation, the heat pipe 26 plays an important role in the heat dissipation module 2, serving to conduct heat from the heat source to the heat dissipation fins 22. The evaporation section of the heat pipe 26 is embedded in the heat-conducting substrate 21, and this connection method ensures that heat can be quickly transferred from LED module 1 to the heat pipe 26. When heat is generated during the operation of LED module 1, it is conducted by the heat-conducting substrate 21 to the evaporation section of the heat pipe 26. The working principle of the heat pipe 26 is to achieve rapid heat transfer through the evaporation and condensation processes, thereby improving the overall heat dissipation efficiency.

[0031] The condensation section of the heat pipe 26 is designed to penetrate the heat dissipation fins 22 and is directly in contact with and fixed to the heat dissipation fins 22, which can ensure that heat is effectively released at the condensation section and accelerate the heat exchange with the outside air through the heat dissipation fins 22. The heat dissipation fins 22 enhance the heat dissipation effect by increasing the surface area, while the condensation section of the heat pipe 26 helps to further improve the heat conduction and dissipation efficiency.

[0032] The high-frequency vibration generator is fixed at the edge of the heat dissipation fins 22, and its main function is to change the air flow state on the surface of the heat dissipation fins 22 through high-frequency vibration. The vibration generator can effectively reduce the phenomenon of air staying on the fin surface, promote the flow of hot air, thereby accelerating the diffusion and dissipation of heat, and further improving the heat dissipation efficiency.

[0033] The surface of the heat dissipation fins 22 is sprayed with a hydrophobic and oleophobic coating, which can prevent the attachment of moisture and oil stains and keep the surface of the heat dissipation fins 22 clean. The attachment of water and oil will reduce the heat exchange efficiency of the heat dissipation fins 22, while the hydrophobic and oleophobic coating can effectively reduce this influence and keep the heat dissipation performance of the heat dissipation fins 22 at a high level.

[0034] During the manufacturing process, the evaporation section of the heat pipe 26 is first embedded in the heat-conducting substrate 21 to ensure good contact with the substrate, thereby improving the heat transfer efficiency. The condensation section is then precisely designed to penetrate and be fixed in the structure of the heat dissipation fins 22 after passing through. The condensation section is in close contact with the heat dissipation fins 22 to ensure that heat can be quickly transferred from the heat pipe 26 to the fins and dissipated through the air.

[0035] At the edge of the heat dissipation fin 22, a high-frequency vibration generator is installed. The vibrator adjusts the frequency and vibration intensity through an electronic control system to generate high-frequency vibrations, which helps air flow more evenly, avoids the phenomenon of air stagnation on the fin surface caused by temperature differences, and thus improves the heat dissipation performance.

[0036] The spraying of the coating is usually carried out after the heat dissipation fin 22 is processed, and a hydrophobic and oleophobic material is sprayed on the fin surface. The thickness of the coating is uniform and firm, which can effectively prevent moisture and oil stains from depositing on the fin surface, thereby maintaining a long-term heat dissipation effect.

[0037] In a possible implementation, at the air inlets and outlets of the air inlet duct and the air outlet duct, there are respectively installed openable and closable sealing covers 24, and an electrostatic adsorption net 25 is installed and fixed at the air inlet of the air inlet duct. When the sealing cover 24 is closed, the electrostatic adsorption net 25 is located inside the sealing cover 24.

[0038] Specifically, at the air inlets and outlets of the air inlet duct and the air outlet duct, there are respectively installed openable and closable sealing covers 24. The main function of these sealing covers 24 is to adjust the state of air inflow and outflow as needed. When the lighting device is working, the sealing cover 24 is opened to ensure air flow; when the device is not in use or needs to be protected, the sealing cover 24 is closed to prevent external dust, moisture, etc. from entering the device interior and ensure the good operation of the heat dissipation system.

[0039] At the air inlet of the air inlet duct, an electrostatic adsorption net 25 is installed and fixed. The electrostatic adsorption net 25 can adsorb tiny particles (such as dust, impurities, etc.) in the air through the electrostatic principle and prevent these pollutants from entering the device interior. This helps to keep the interior of the device clean, prevent impurities from accumulating on the heat dissipation system and electronic components, and thus maintain the efficient operation of the heat dissipation system.

[0040] When the sealing cover 24 is closed, the electrostatic adsorption net 25 is completely wrapped inside the sealing cover 24. This design can not only prevent dust and impurities from entering the device, but also protect the electrostatic adsorption net 25 when the sealing cover 24 is closed, avoiding the influence of external factors on its function. The opening and closing operation of the sealing cover 24 and the function of the electrostatic adsorption net 25 complement each other, ensuring that the air inlet duct can inhale air cleanly and efficiently during operation and preventing the accumulation of pollutants.

[0041] The sealing cover 24 is usually controlled by a spring or an electric drive device and can be opened and closed automatically or manually according to the usage state of the lighting device. The design of the sealing cover 24 ensures the sealing performance of the air inlets and outlets of the air inlet duct and the air outlet duct. When the device is not in use, the sealing cover 24 automatically closes to prevent external pollutants from invading; when heat dissipation is required, the sealing cover 24 automatically opens to ensure smooth air flow.

[0042] The electrostatic adsorption net 25 is fixedly installed at the air inlet of the air inlet duct and can be firmly fixed to the air inlet by adhesion, clamping or other mechanical means. The electrostatic adsorption net 25 uses efficient filter materials to adsorb tiny particles in the air through electric charges, filtering out these particles before the air enters the device and preventing them from entering the heat dissipation system.

[0043] When the sealing cover 24 is closed, the electrostatic adsorption net 25 is completely wrapped by the sealing cover 24. This design can avoid the direct contact between the electrostatic adsorption net 25 and the external environment, preventing it from being damaged or contaminated. When the sealing cover 24 is opened, the electrostatic adsorption net 25 starts to function, effectively filtering the pollutants in the air. Through this design, the cooperation between the electrostatic adsorption net 25 and the sealing cover 24 can keep the device clean and improve the air circulation.

[0044] In a possible implementation manner, the cooperative control module integrates an environment perception unit, a central processing unit and an execution unit, and each part is electrically connected and realizes intelligent linkage control under the support of an algorithm.

[0045] Specifically, the environment perception unit consists of a temperature and humidity sensor, a dust sensor, a salt spray concentration sensor and a people flow density sensor.

[0046] These sensors transmit the collected environmental data to the central processing unit (CPU) in real time through wired communication (such as I2C, SPI, UART) or wireless communication (such as ZigBee, LoRa) and keep the data updated.

[0047] Among them, the central processing unit has a built-in reinforcement learning algorithm, and after receiving the sensor data, it performs model inference and generates a control strategy.

[0048] Control signals such as adjusting the rotation speed of the cooling fan and adjusting the lighting brightness are sent to the execution unit through a control interface (such as GPIO, PWM, power control module).

[0049] The execution unit includes components such as a fan speed governor and a lighting power controller, and dynamically adjusts the device operation state according to the instructions issued by the central processing unit, realizing the dual control of the lighting intensity and the heat dissipation efficiency.

[0050] In the embodiment of the present invention, each sensor periodically collects environmental data: such as temperature, humidity, dust concentration in the air, salt spray corrosiveness, people flow density, etc. The sensor data is sent to the central processing unit for preprocessing (denoising, normalization, etc.) to facilitate model analysis.

[0051] Furthermore, the central processing unit runs a reinforcement learning algorithm, combines historical data with real-time sensing information, and dynamically adjusts the mapping relationship between "lighting brightness - heat dissipation parameters".

[0052] For example, in the case of high temperature and high humidity or high population density, the heat dissipation efficiency is improved and the brightness is appropriately enhanced; while in a harsh environment with high dust or salt fog concentration, the brightness and heat dissipation load are reduced to reduce equipment wear.

[0053] After receiving the control signal, the execution unit drives the fan, adjusts the voltage or current to control heat dissipation behaviors such as the brightness of the LED lighting and the rotation speed of the fan. At the same time, it feeds back the current status information to the central processing unit to form a closed-loop adaptive control mechanism.

[0054] In a possible implementation, the temperature and humidity sensors are respectively arranged on the heat dissipation substrate, the condensation section of the heat pipe 26, and the surface of the housing of the LED module 1.

[0055] The heat dissipation substrate and the condensation section of the heat pipe 26 are the heat dissipation cores of the system. Arranging the sensors at these positions can monitor the temperature and humidity changes of the key parts in real time.

[0056] These temperature and humidity data are transmitted to the central processing unit (CPU) for adjusting the heat dissipation strategy and controlling the lighting brightness to ensure the stable operation of the equipment in various environments.

[0057] The dust sensor is installed on the air outlet duct to mainly monitor the dust concentration in the air.

[0058] The air outlet duct is the air circulation path of the equipment. By measuring the dust content in the air in real time, the sensor helps the system determine whether to increase the rotation speed of the heat dissipation fan or take other protection measures for the equipment.

[0059] The data of the sensor is also transmitted to the central processing unit to adjust the operation of the equipment according to the dust concentration and prevent the heat dissipation effect from decreasing due to excessive dust accumulation.

[0060] The salt fog concentration sensor is fixedly installed on the surface of the housing of the LED module 1 to measure the chloride ion concentration in the air, mainly for dealing with the salt fog corrosion environment.

[0061] In marine or humid areas, a relatively high chloride ion concentration may cause corrosion of the housing of the LED module 1. Through this sensor, the system can monitor the salt fog concentration in real time, adjust the operation mode of the equipment, and take appropriate protection measures, such as reducing the lighting brightness or increasing the heat dissipation efficiency.

[0062] The population density sensor is installed on the surface of the housing of the LED module 1 and can detect the human movement trajectory within a range of 5 - 10 meters in real time.

[0063] When the sensor detects a crowded population, the system can adjust the lighting brightness according to the situation to better meet the environmental requirements. When the number of people is small, the lighting brightness can be reduced to save energy, and when the population is dense, the brightness can be increased to ensure sufficient lighting effect.

[0064] Specifically, each sensor transmits the collected environmental data to the central processing unit through wireless or wired communication protocols (such as I2C, SPI, UART, etc.).

[0065] The central processing unit performs real-time processing and analysis on this data, including factors such as temperature and humidity changes, dust concentration, salt mist concentration, and human flow density.

[0066] The central processing unit uses a reinforcement learning algorithm to combine historical data with real-time environmental changes to generate a "heat dissipation - lighting brightness" mapping model and makes real-time adjustments.

[0067] Based on the feedback from the temperature and humidity sensors, the central processing unit determines whether the heat dissipation efficiency is sufficient and automatically adjusts the rotation speeds of the radiator and the fan; based on the feedback from the dust sensor, the system determines the air cleanliness and automatically adjusts the fan working mode; in a high salt mist environment, the lighting brightness is automatically reduced to reduce equipment corrosion.

[0068] The execution unit (such as the fan, LED drive power supply, etc.) makes real-time adjustments according to the control signal of the central processing unit, such as adjusting the fan speed, adjusting the lighting brightness, etc.

[0069] The sensors continuously feedback real-time data, forming a closed-loop control system to ensure that the device can make adaptive adjustments according to environmental changes.

[0070] In a possible implementation, the central processing unit can dynamically adjust the heat dissipation and lighting brightness of the device by establishing a heat dissipation parameter - lighting brightness mapping model based on the parameters of the environmental perception unit, thereby optimizing energy efficiency, improving device performance, and ensuring comfort.

[0071] To ensure the accurate docking of the data of each sensor, it is first necessary to synchronize the time of all sensor data, using a time stamp with millisecond-level accuracy so that the data of each sensor can correspond one by one in time.

[0072] The data collected by the temperature and humidity sensors at different positions need to be processed by sliding window filtering to eliminate instantaneous measurement noise, which can improve the reliability of the data.

[0073] Perform spatial difference calculations on the filtered temperature and humidity data to generate a three-dimensional temperature field distribution matrix around the device, so as to more accurately understand the temperature changes at each position.

[0074] Process the data of the human flow density sensor through the Kalman filter algorithm to obtain the real-time human flow density index and further generate an environmental state matrix. This matrix will reflect multi-dimensional environmental parameters including temperature and humidity, human flow density, etc.

[0075] By calculating the real-time temperature difference between the heat dissipation substrate and the condensation section of the heat pipe 26, and performing a sliding window analysis in combination with historical salt spray concentration data, the heat dissipation efficiency decay factor is obtained. This factor describes the degree of attenuation of the device's heat dissipation capacity with environmental changes.

[0076] By fusing the real-time pedestrian flow density and historical in-phase lighting records, a predicted value of the light flux demand is generated. This value will be used to predict the lighting demand, especially to adjust the lighting brightness under different pedestrian flow densities to achieve the best energy efficiency and lighting effect.

[0077] State space: It includes the environmental state matrix generated in step 1 and the derived features extracted in step 2. The environmental state matrix contains multi-dimensional information such as temperature and humidity distribution, salt spray concentration, pedestrian flow density, etc., while the derived features include the heat dissipation efficiency decay factor and the predicted value of the light flux demand, etc.

[0078] Action space: Define control variables such as the angle of the dynamic convection air duct 23, the opening and closing state of the sealing cover 24, the frequency of the high-frequency vibration generator, the voltage of the electrostatic adsorption net 25, and the drive current of the LED module 1 as the action space. The adjustment of each control variable will affect the heat dissipation and lighting effects of the device.

[0079] Use a deep reinforcement learning algorithm to train the model, and train the model offline through a laboratory simulation environment. The design of the reward function includes temperature penalty, energy consumption penalty, and comfort reward, which are used to guide the model to optimize energy efficiency and comfort, while ensuring that the temperature of the device remains within a safe range, saving energy and enhancing the user experience.

[0080] After deploying the trained reinforcement learning model, the central processing unit receives the environmental state matrix in real time as the model input. The model outputs corresponding control instructions, such as adjusting the angle of the dynamic convection air duct 23, the opening and closing state of the sealing cover 24, the frequency of the vibration generator, the voltage of the electrostatic adsorption net 25, and the drive current of the LED module 1. Executing these control instructions can adjust the heat dissipation and lighting of the device in real time in the actual environment to maintain the best working state.

[0081] In a possible implementation, the design of the composite reward function in step 4 can effectively guide the reinforcement learning model to optimize the heat dissipation and lighting control of the device. By punishing and rewarding different factors, it ensures that the device avoids device failures caused by environmental factors such as excessive temperature or salt spray while ensuring comfort and energy conservation.

[0082] The design of the composite reward function includes three main parts: a temperature penalty term, a salt spray corrosion inhibition reward term, and a comfort reward term. These parts are independent of each other but interrelated, jointly constituting the feedback mechanism of the reinforcement learning model.

[0083] When the temperature of the heat dissipation substrate exceeds the set material safety threshold, the system calculates the square of the difference between the over-limit temperature and the threshold, thereby imposing a negative reward on the situation of excessive temperature. In this way, the system will be strongly punished for high temperatures, prompting the reinforcement learning model to avoid high-temperature situations as much as possible, thus protecting the long-term stability of the device.

[0084] The design of the temperature penalty term is directly connected to the temperature sensor data. When the system monitors in real time that the temperature exceeds the threshold, the penalty term immediately affects the reward function of the model, enabling the model to preferentially learn how to dissipate heat effectively during training, thereby preventing overheating.

[0085] When the salt spray concentration exceeds the critical value and the shell temperature is lower than the dew point temperature, the system imposes an exponential positive reward on the action of increasing the fan speed. When the salt spray concentration is high, it is easy to corrode the device shell. Therefore, accelerating heat dissipation by increasing the fan speed is an effective preventive measure.

[0086] This reward term collects data through a salt spray sensor and a temperature and humidity sensor. When the salt spray concentration is higher than the critical value and the shell temperature is lower than the dew point temperature, the model will enhance the operation of the fan speed, enabling the system to respond more quickly to environmental changes.

[0087] This reward term calculates a positive reward based on the matching degree between the real-time crowd density and the current lighting brightness. Through the crowd-lighting demand curve, the system can automatically adjust the lighting brightness to ensure that the lighting effect matches the crowd demand, achieving the best comfort level.

[0088] The real-time crowd density and brightness data are fed back to the system through the environmental state matrix. When an increase in crowd density is detected, the system automatically adjusts the brightness according to the preset curve to ensure lighting quality while avoiding unnecessary energy consumption.

[0089] In a possible implementation, the rotation controller is electrically connected to the air duct drive motor to control the rotation angle of the air duct, thereby adjusting the direction of air inflow. Through the signal of the rotation controller, the drive motor can change the angle of the air duct and adjust the air flow path. This function allows the system to automatically adjust the air flow direction under different environmental conditions to optimize the heat dissipation effect, especially in environments with large climate changes or wind speed fluctuations. This dynamic air duct adjustment can effectively enhance the heat dissipation efficiency, reduce the device temperature, and thus improve the stability and durability of the device.

[0090] The opening and closing controller controls the drive mechanism of the sealing covers 24 of the air inlet duct and the air outlet duct, adjusts the opening and closing state of the sealing covers 24, so as to adjust the air flow rate of the air inlet and outlet. The opening and closing controller judges the current air circulation demand according to the received environmental information, and controls the opening and closing degree of the sealing covers 24. For example, when the temperature is relatively high, the opening and closing controller may open the sealing covers 24 of the air inlet duct and the air outlet duct to increase the air circulation and help with heat dissipation; while in cold weather, the sealing covers 24 may remain closed to reduce heat loss. This control method can effectively optimize the air circulation, avoid unnecessary energy waste, and ensure the best working state of the equipment in different seasons and environments.

[0091] The vibration controller is electrically connected to the piezoelectric ceramic driver of the high-frequency vibration generator, controls the vibration frequency, and thus adjusts the vibration intensity. The vibration controller adjusts the heat dissipation effect by adjusting the operating frequency of the vibration generator. For example, when there is dust or salt spray on the surface of the equipment, high-frequency vibration is excited to remove these substances, ensuring the cleanliness of the radiator surface, and thus improving the heat dissipation effect. This vibration control function helps to improve the heat dissipation efficiency of the radiator and reduce the heat accumulation caused by the obstruction of heat dissipation by surface dirt or corrosive substances.

[0092] The voltage controller is connected to the power supply circuit of the electrostatic adsorption net 25, and adjusts the intensity of the adsorption voltage. The voltage controller adjusts the voltage of the electrostatic adsorption net 25 according to the real-time environmental conditions to enhance or weaken the adsorption force. For example, in the case of a relatively high salt spray concentration, the voltage controller may increase the adsorption voltage to help adsorb the salts and dust in the air, prevent them from depositing on the radiator surface, and ensure that the equipment remains clean for a long time. The control of the electrostatic adsorption net 25 can effectively reduce the contamination of the heat dissipation surface, further improve the heat dissipation efficiency, and extend the service life of the equipment.

[0093] The brightness controller is connected to the drive power supply of the LED module 1, adjusts the output current value, and thus changes the brightness. The brightness controller adjusts the brightness of the LED lights according to the real-time pedestrian flow density and lighting demand. For example, in areas with a large pedestrian flow, the brightness controller will increase the brightness of the LED lights, while in areas with a small pedestrian flow, it will reduce the brightness to save energy. By intelligently adjusting the brightness, not only can the lighting comfort be improved, but also the energy consumption can be greatly reduced, achieving the purpose of energy conservation and environmental adaptation.

[0094] Through the mutual cooperation and precise adjustment of these controllers, the energy-saving outdoor wall lighting device based on the efficient heat dissipation structure can ensure efficient heat dissipation and energy-saving lighting of the device while intelligently adjusting its working state according to environmental changes. The mutual cooperation of the rotation controller, the opening and closing controller, the vibration controller, the voltage controller, and the brightness controller enables the device to adjust its working parameters in real time under different temperatures, humidities, air circulation conditions, and lighting requirements, so as to achieve multiple effects of optimizing heat dissipation, improving the durability of the device, saving energy, and enhancing comfort. This highly integrated control scheme can significantly improve the working performance of the device, extend its service life, and simultaneously achieve the best effects of energy saving and environmental adaptation.

[0095] In a possible implementation manner, the rotation controller receives the target angle value of the dynamic convection air duct 23 output by the model and real-time feedbacks the current angle through the encoder built in the driving motor. The control system adopts a proportional-integral-derivative (PID) control algorithm to dynamically adjust the angular position of the motor rotor according to the error.

[0096] In specific implementation, the controller continuously optimizes the rotation angle of the air duct according to environmental changes (such as temperature, humidity, or wind speed) to ensure the best air flow to improve the heat dissipation efficiency. When the salt mist concentration exceeds the preset threshold, after the controller detects this change through the sensor, it forcibly locks the air duct angle to the leeward direction to avoid salt mist entering the air duct and prevent the internal part of the device from being contaminated.

[0097] This control method ensures the real-time adjustment of the air duct angle through the precise PID control algorithm, making the air flow more efficient and maximizing the heat dissipation effect. At the same time, by automatically adjusting the air duct angle in response to the change of salt mist concentration, it protects the device from external pollution and ensures long-term stable operation.

[0098] The opening and closing controller calculates the optimal opening and closing cycle by obtaining the real-time data of the dust sensor and the historical record of the opening and closing state of the sealing cover 24. This controller intelligently adjusts the opening and closing time of the sealing cover 24 based on the dust accumulation amount and the past opening and closing records to achieve the best heat dissipation and cleaning effects. When the sealing cover 24 is opened, the system synchronously starts the electrostatic adsorption net 25 to capture dust and particles in the air; when the sealing cover 24 is closed, the particles adsorbed on the surface of the adsorption net are removed through a reverse pulse voltage. When it detects that the instantaneous wind speed exceeds the safety threshold, the controller starts an emergency closing mechanism to automatically close the sealing cover 24 to prevent damage to the device caused by excessive wind speed.

[0099] This method effectively optimizes the opening and closing cycle of the sealing cover 24, avoiding ineffective energy consumption. By dynamically adjusting the working state (adsorption and cleaning) of the adsorption net, the radiator can be continuously kept clean, thereby improving the heat dissipation efficiency, avoiding dust accumulation or particulate matter from hindering heat dissipation, and extending the service life of the device. In addition, the emergency closing mechanism enhances the safety of the system and prevents the adverse effects caused by excessive wind speed.

[0100] The vibration controller dynamically distributes the high-frequency vibration intensity of different regions according to the temperature gradient distribution on the surface of the heat dissipation fins 22. By monitoring the surface temperature of the heat dissipation surface through a temperature sensor, the system calculates the temperature difference in different regions and intelligently adjusts the vibration frequency and intensity to optimize the heat dissipation effect.

[0101] The controller uses a resonance frequency avoidance algorithm to real-time monitor the vibration spectrum, ensuring to avoid the structural natural frequency of the device, thus avoiding damage caused by unnecessary resonance.

[0102] When the temperature of the piezoelectric ceramic exceeds the limit value, the vibration controller automatically reduces the vibration frequency and triggers the air duct to accelerate heat dissipation, enhancing the heat dissipation effect.

[0103] The vibration control method optimizes the heat conduction and heat dissipation capabilities of the radiator by precisely adjusting the vibration frequency and intensity. Especially in the case of high temperature, it can effectively prevent the device from being damaged due to local overheating. The resonance frequency avoidance algorithm can avoid structural resonance caused by vibration, increasing the stability and long-term use reliability of the system. At the same time, through the automatic adjustment when the temperature is too high, it ensures that the device is always in the best heat dissipation state and prevents device damage caused by excessive vibration.

[0104] In a possible implementation, the voltage controller dynamically adjusts the voltage level of the electrostatic adsorption net 25 by real-time receiving the dust concentration data at the air outlet. When the dust concentration is relatively high, the controller will increase the voltage level to enhance the adsorption effect of the electrostatic adsorption net 25, thereby more effectively capturing particulate matter in the air.

[0105] To ensure voltage stability, the voltage controller adopts a boost circuit and combines it with current feedback closed-loop control. This control method ensures that the voltage fluctuation range is within the set percentage, avoiding the impact of voltage fluctuation on the device performance, thereby improving the stability and working efficiency of the system.

[0106] By adjusting the voltage according to the dust concentration at the air outlet, the electrostatic adsorption net 25 can effectively cope with different working environments and always maintain the best particulate matter capture ability. The combination of the boost circuit and closed-loop control ensures the minimization of voltage fluctuation, improves the stability and voltage control accuracy of the system, and avoids interference to other devices caused by voltage instability.

[0107] The brightness controller receives the target value of the driving current output by the model and converts it into a constant current source control signal. This can ensure that the working current of the LED lamp always remains within a stable range, avoiding the influence on the lighting effect due to unstable current.

[0108] The pulse brightness controller adopts a composite control method of pulse width modulation (PWM) and current sampling feedback. This control method can keep the output current ripple of the LED below the preset threshold, thereby effectively reducing the fluctuation of the light output and improving the stability of the lighting effect.

[0109] When it is detected that the LED junction temperature rises abnormally, the brightness controller will superimpose an exponential decay compensation function on the brightness adjustment instruction to suppress thermal runaway and prevent damage to the LED lamp caused by overheating.

[0110] The constant current source control signal ensures the stability of the output of the LED lamp, avoiding unstable brightness changes caused by current fluctuations. In addition, the composite control method of PWM and current feedback can effectively reduce the current ripple, making the light output more stable and improving the lighting quality. The exponential decay compensation function can address the thermal runaway problem when the LED junction temperature rises. By intelligently adjusting the brightness, it extends the service life of the LED and avoids performance degradation caused by overheating.

[0111] The combination of the voltage controller and the brightness controller enables the energy-saving outdoor wall lighting device to achieve high efficiency and stable operation under various working conditions. The voltage controller dynamically adjusts the voltage of the electrostatic adsorption net 25 to ensure that airborne particulate matter is effectively captured, while ensuring the stability of the voltage and improving the reliability of the system. The brightness controller precisely controls the driving current of the LED to ensure a stable lighting effect, and addresses the thermal runaway problem brought about by the increase in the LED junction temperature through a compensation function, extending the service life of the LED lamp. The collaborative work of the two effectively improves the energy-saving effect of the device and the stability of long-term operation.

[0112] The beneficial effects brought by the technical solution provided by the embodiments of the present invention at least include:

[0113] In the present invention, the heat dissipation fins 22 achieve the heat dissipation effect through large-area contact heat dissipation and the airflow acceleration of the dynamic air duct, thereby ensuring that the LED module 1 always remains within an appropriate operating temperature range, and avoiding the efficiency reduction and lifespan shortening caused by overheating. Through intelligent control, the system can adjust the brightness of the LED module 1 according to environmental changes, avoiding unnecessary energy waste. In addition, the air duct system is adjusted as needed, effectively reducing unnecessary energy consumption. The efficient heat dissipation design not only improves the operating efficiency of the system, but also effectively reduces the overheating problem of the device, thereby extending the service life of the LED module 1 and its related components. Through environmental perception and intelligent adjustment, the system can automatically optimize the operating state of the device according to the external environment (such as temperature, humidity, dust concentration, etc.), provide a stable and comfortable lighting experience, and ensure that the device can maintain the best operating state under various external environments.

[0114] The present invention covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of the present invention. For the public to have a thorough understanding of the present invention, specific details are described in detail in the preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. Additionally, well-known methods, processes, procedures, components, and circuits, etc. are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0115] The above description is only a preferred embodiment of the present invention. It should be noted that 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 should also be regarded as the protection scope of the present invention.

Claims

1. An energy-saving outdoor wall lighting device based on an efficient heat dissipation structure, characterized in that, It includes an LED module (1), a heat dissipation module (2) and a cooperative control module. The LED module (1) is connected to the heat dissipation module (2) to transfer the heat energy of the LED module (1) to the heat dissipation module (2). The cooperative control module is electrically connected to the LED module (1) and the heat dissipation module (2). The heat dissipation module (2) includes a heat-conducting substrate (21), heat dissipation fins (22) and a dynamic convection air duct (23). One side of the heat-conducting substrate (21) is in contact connection with the heat source of the LED module (1), and the other side of the heat-conducting substrate (21) is fixedly connected to the flat end of the heat dissipation fins (22). The dynamic convection air duct (23) is rotatably installed outside the LED module (1) through a bearing and a driving motor, and the dynamic convection air duct (23) wraps the heat dissipation fins (22) in its internal space. The dynamic convection air duct (23) includes an air inlet duct and an air outlet duct. The air inlets of the air inlet duct and the air outlet duct are opposite and communicate with each other. The heat dissipation fins (22) are in the middle position between the air inlet duct and the air outlet duct. The minimum cross-sectional area of the air inlet of the air inlet duct is smaller than the minimum cross-sectional area of the air outlet.

2. The energy-saving outdoor wall lighting device based on the efficient heat dissipation structure according to claim 1, wherein, The heat dissipation module (2) further includes heat pipes (26) and a high-frequency vibration generator. The evaporation section of the heat pipe (26) is embedded in the heat-conducting substrate (21), and the condensation sections of the heat pipes (26) all penetrate through the heat dissipation fins (22) and are fixedly attached to the heat dissipation fins (22). For the high-frequency vibration generator, the high-frequency vibration generator is fixedly installed at the edge of the heat dissipation fins (22), and the surface of the heat dissipation fins (22) is sprayed with a hydrophobic and oleophobic coating.

3. The energy-saving outdoor wall lighting device based on the efficient heat dissipation structure according to claim 2, wherein, Openable sealing covers (24) are respectively arranged at the air inlets of the air inlet duct and the air outlet duct. An electrostatic adsorption net (25) is also fixedly installed at the air inlet of the air inlet duct. When the sealing cover (24) is closed, the electrostatic adsorption net (25) is located inside the sealing cover (24).

4. The energy-saving outdoor wall lighting device based on the high-efficiency heat dissipation structure according to claim 3, characterized in that, The cooperative control module includes an environment perception unit, a central processing unit and an execution unit. The environment perception unit includes a temperature and humidity sensor, a dust sensor, a salt mist concentration sensor and a human flow density sensor. Each sensor is electrically connected to the central processing unit. The central processing unit establishes a heat dissipation parameter - illumination brightness mapping model based on the parameters of the environment perception unit through a reinforcement learning algorithm, and issues relevant instructions to the execution unit by analyzing the real-time parameters of each sensor.

5. The energy-saving outdoor wall lighting device based on the efficient heat dissipation structure according to claim 4, characterized in that, The temperature and humidity sensors are respectively arranged on the heat dissipation substrate, the condensation section of the heat pipe (26), and the surface of the housing of the LED module (1). The dust sensor is fixedly installed on the air outlet duct. The salt mist concentration sensor is fixedly installed on the surface of the housing of the LED module (1) to measure the chloride ion concentration in the air. The human flow density sensor is fixedly installed on the surface of the housing of the LED module (1) to detect the human movement trajectory within a range of 5 - 10 meters in real time.

6. The energy-saving outdoor wall lighting device based on the efficient heat dissipation structure according to claim 5, characterized in that, The central processing unit establishes a heat dissipation parameter - illumination brightness mapping model based on the parameters of the environment perception unit through the following steps: Step 1: Establish a unified timestamp to align the data of each sensor with millisecond-level accuracy. For the data collected by the temperature and humidity sensors at different positions, first use the sliding window filtering algorithm to eliminate instantaneous measurement noise, and then perform spatial difference calculation to generate a three-dimensional temperature field distribution matrix. For the data of the pedestrian flow density sensor, calculate the real-time pedestrian flow density index through the Kalman filtering algorithm to generate an environmental state matrix; Step 2: Extract the heat dissipation efficiency decay factor and the predicted value of the light flux demand based on physical constraints. The heat dissipation efficiency decay factor is obtained by calculating the real-time temperature difference between the heat dissipation substrate and the condensation section of the heat pipe (26) and combining the sliding window analysis of the historical salt fog concentration data. The predicted value of the light flux demand is generated by fusing the real-time pedestrian flow density and the historical in-phase lighting records; Step 3: Construct the state space and action space of the reinforcement learning model. The state space includes the environmental state matrix in Step 1 and the derivative features in Step 2. The action space includes the angle of the dynamic convection air duct (23), the opening and closing state of the sealing cover (24), the frequency of the high-frequency vibration generator, the voltage of the electrostatic adsorption net (25), and the driving current of the LED module (1); Step 4: Train the initial model using the deep reinforcement learning algorithm, define a composite reward function including temperature penalty, energy consumption penalty, and comfort reward, and perform offline training in the laboratory simulation environment; Step 5: After deploying the model, receive the environmental state matrix in real time and use it as the input of the model. The model outputs control instructions and executes them. The control instructions include the angle value of the dynamic convection air duct (23), the opening and closing state of the sealing cover (24), the frequency value of the high-frequency vibration generator, the voltage value of the electrostatic adsorption net (25), and the driving current value of the LED module (1).

7. The energy-saving outdoor wall lighting device based on the efficient heat dissipation structure according to claim 6, wherein The design of the composite reward function in Step 4 includes: Temperature penalty term: When the temperature of the heat dissipation substrate exceeds the material safety threshold, a negative reward is imposed according to the square of the difference between the over-limit temperature and the threshold; Salt fog corrosion inhibition reward term: When the salt fog concentration is higher than the critical value and the temperature of the outer shell is lower than the dew point temperature, an exponential positive reward is imposed on the action of increasing the fan speed; Comfort reward term: According to the matching degree between the real-time pedestrian flow density and the current brightness, calculate the positive reward value according to the preset pedestrian-flow - brightness demand curve.

8. The energy-saving outdoor wall lighting device based on the efficient heat dissipation structure according to claim 7, characterized in that The execution unit includes a rotation controller, an opening and closing controller, a vibration controller, a voltage controller, and a brightness controller. Among them, the rotation controller is electrically connected to the drive motor of the dynamic convection air duct (23) to control the rotation angle of the air duct to adjust the air inlet direction. The opening and closing controller is connected to the drive mechanism of the sealing covers (24) of the air inlet duct and the air outlet duct to control the opening and closing state of the sealing covers (24). The vibration controller is electrically connected to the piezoelectric ceramic driver of the high-frequency vibration generator to adjust the vibration frequency. The voltage controller is connected to the power supply circuit of the electrostatic adsorption net (25) to control the adsorption voltage intensity. The brightness controller is connected to the drive power supply of the LED module (1) to adjust the output current value to change the brightness.

9. The energy-saving outdoor wall lighting device based on an efficient heat dissipation structure according to claim 8, wherein: The control method of the rotation controller includes: Receive the target angle value of the dynamic convection air duct (23) output by the model; Real-time feedback the current angle through the encoder built in the drive motor, and adjust the angular position of the motor rotor using the proportional-integral-derivative control algorithm; When it is detected that the salt spray concentration exceeds the preset threshold, forcibly lock the air duct angle to the leeward direction; The control method of the opening and closing controller includes: Calculate the optimal opening and closing cycle according to the real-time data of the dust sensor and the historical record of the opening and closing state of the sealing cover (24); Synchronously activate the electrostatic adsorption net (25) when the sealing cover (24) is opened, and trigger a reverse pulse voltage to remove the adsorbed particles when it is closed; When it is detected that the instantaneous wind speed exceeds the safety threshold, start the emergency closing mechanism; The control method of the vibration controller includes: Dynamically allocate the high-frequency vibration intensity of different regions according to the surface temperature gradient distribution of the heat dissipation fins (22); Adopt the resonance frequency avoidance algorithm to monitor the vibration spectrum in real time and avoid the structural natural frequency; When the temperature of the piezoelectric ceramic exceeds the limit value, automatically reduce the vibration frequency and trigger the air duct to dissipate heat faster.

10. The energy-saving outdoor wall lighting device based on the high-efficiency heat dissipation structure according to claim 9, characterized in that: The control method of the voltage controller includes: Dynamically adjust the voltage level of the electrostatic adsorption net (25) according to the dust concentration data at the air outlet; Adopt a boost circuit and a current feedback closed-loop control to ensure that the voltage fluctuation range does not exceed the set percentage; The control method of the brightness controller includes: Convert the target value of the drive current output by the model into a constant current source control signal; Adopt a composite control method of pulse width modulation and current sampling feedback to ensure that the output current ripple is lower than the preset threshold; When it is detected that the LED junction temperature rises abnormally, superimpose an exponential decay compensation function on the brightness adjustment command to suppress thermal runaway.

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