Self-energy-supply dustproof lamp for traffic tunnel and using method of self-energy-supply dustproof lamp

Abstract

The invention discloses a self-energy-supply dustproof lamp for a traffic tunnel and a using method thereof, and relates to the field of lamps, and the key points of the technical scheme are that the self-energy-supply dustproof lamp comprises a self-energy-supply device which is installed at the top end of the lamp and comprises a vibration power generation unit, a temperature difference power generation unit, an energy storage unit and a charging and discharging management unit, the vibration power generation unit is of a combined structure of a piezoelectric ceramic power generation assembly and a spring oscillator, the temperature difference power generation unit is of a combined structure of a bismuth telluride temperature difference power generation piece and a cooling fin, the energy storage unit is a lithium iron phosphate battery, and the charging and discharging management unit integrates an MPPT chip and a protection circuit. The beneficial effects are that the electric energy generated by the two power generation units is transmitted to the charging and discharging management unit, the integrated MPPT chip realizes maximum power point tracking, the electric energy is efficiently adjusted and stored in the energy storage unit formed by the lithium iron phosphate battery, and then the energy storage unit stably supplies power to the lamp. The system can be better adapted to the underground closed / semi-closed traffic tunnel environment with extremely poor illumination conditions.

Description

Technical Field

[0001] This invention relates to the field of traffic tunnel lighting fixtures, and more specifically, to a self-powered dustproof lighting fixture for traffic tunnels and its method of use. Background Technology

[0002] In lighting systems for underground enclosed or semi-enclosed spaces like traffic tunnels, luminaires, as core functional components, are directly affected by their stable operation, continuous power supply, and cleanliness maintenance, which in turn affect the lighting effect and lifespan.

[0003] Currently, most lighting fixtures in traffic tunnels rely on external power grids for power. This not only requires laying complex power lines, increasing initial construction costs and subsequent maintenance difficulties, but also easily leads to lighting interruptions during power grid failures or line maintenance, affecting normal traffic flow and operational safety. Although some energy-saving lighting fixtures, such as those powered by solar energy, exist, the poor lighting conditions inside traffic tunnels result in extremely low solar energy utilization efficiency, making it difficult to meet continuous power supply needs. At the same time, the unique environment inside traffic tunnels, with poor air circulation, allows dust and particulate matter to easily adhere and accumulate on the lighting surfaces. If not cleaned in time, this will significantly reduce the light transmittance and brightness of the fixtures, requiring regular manual inspection and cleaning, which not only consumes a lot of manpower and resources but also poses certain operational safety risks.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a self-powered dustproof luminaire for traffic tunnels and its usage method. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a self-powered dustproof lamp for traffic tunnels and its usage method.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a self-powered dustproof luminaire for traffic tunnels, comprising: Lighting fixtures, which are mounted on the roof of a traffic tunnel using mounting components; The self-powered device, installed on the top of the lamp, includes a vibration power generation unit, a thermoelectric power generation unit, an energy storage unit, and a charge / discharge management unit. The vibration power generation unit is a combination of a piezoelectric ceramic power generation component and a spring oscillator. The thermoelectric power generation unit is a combination of a bismuth telluride thermoelectric power generation sheet and a heat sink. The energy storage unit is a lithium iron phosphate battery. The charge / discharge management unit integrates an MPPT chip and a protection circuit. The dustproof component uses wind power to move its scraper back and forth across the lamp's irradiation surface, preventing dust and particulate matter from adhering to the surface and thus providing dust protection.

[0007] Preferably, the vibration power generation unit comprises three sets of parallel PZT-5 type piezoelectric ceramic sheets, and the thermoelectric power generation unit comprises two sets of TEC1-12706 type bismuth telluride thermoelectric generator sheets.

[0008] Preferably, the mounting assembly includes two fixed feet fixed to the top wall of the traffic tunnel and an N-shaped plate. The bottom ends of the fixed feet are connected to the two ends of the N-shaped plate respectively through shock-absorbing components. The top four corners of the lamp are fixedly connected with screws. The bottom four corners of the N-shaped plate are provided with through holes for the screws to pass through. The outer wall of the screw is threaded with two nuts. The two nuts are respectively abutted against the bottom and top sides of the N-shaped plate to fix the lamp installation height.

[0009] Preferably, the shock-absorbing component includes a top plate welded to the bottom of the fixed foot and a bottom plate welded to the end of the N-shaped plate. The two are maintained in relative linear movement by telescopic rods located at the four corners. Multiple dampers and buffer springs are alternately arranged between the top plate and the bottom plate.

[0010] Preferably, a dust cover is installed on the outer peripheral surface of the top plate to cover the area between the top plate and the bottom plate.

[0011] Preferably, the dustproof assembly includes a reciprocating screw rotatably connected to the side end of the lamp via a bearing, and a sleeve is threaded onto the outer wall of the reciprocating screw. The side end of the lamp is also equipped with a transverse guide rail A for sliding a slider A. The surface of the slider A is connected to the surface of the sleeve. The bottom end of the sleeve is connected to a scraper via an L-shaped plate A. A blade is installed at the end of the reciprocating screw.

[0012] Preferably, both the front and rear ends of the lamp are equipped with transverse guide rails B for sliding the slider B, and the bottom ends of the slider B are connected to the two ends of the scraper through L-shaped plates B. A rubber layer is bonded to the contact surface between the scraper and the lamp.

[0013] Preferably, the scraper is detachably connected to the L-shaped plates A and B by screws.

[0014] The method for using the above-mentioned self-powered dustproof lighting fixtures for traffic tunnels includes the following steps: Step 1: Securely attach the two fixing feet to the top wall of the traffic tunnel to keep the entire installation assembly level; then, pass the screws at the four corners of the top of the lamp through the through holes at the four corners of the bottom of the N-shaped plate, and adjust the length of the screws through the through holes according to the lighting height requirements of the traffic tunnel. Step 2: Rotate the two nuts on the outer side of the screw: screw the lower nut upwards until it fits tightly against the bottom surface of the N-shaped plate, and screw the upper nut downwards until it fits tightly against the top surface of the bottom of the N-shaped plate. The double nuts clamp the lamp to lock the installation height, ensuring that the lamp is stable and does not wobble. Step 3: Confirm that the vibration power generation unit (three sets of parallel PZT-5 piezoelectric ceramic plates and spring oscillators) at the top of the lamp is firmly installed, the hot and cold ends of the thermoelectric power generation unit (two sets of TEC1-12706 bismuth telluride thermoelectric plates and heat sinks) are properly bonded, and the wiring of the energy storage unit (lithium iron phosphate battery) and the charge and discharge management unit (integrated MPPT chip and protection circuit) is normal. Step 4: Simulate the vibration generated by vehicle traffic and equipment operation in the traffic tunnel, observe whether the piezoelectric ceramic sheet of the vibration power generation unit deforms with the vibration, whether the electrical energy is transmitted to the energy storage unit through the charge and discharge management unit, and at the same time monitor the heating status of the lamps when they are working to confirm whether the thermoelectric generator can generate electrical energy through the internal and external temperature difference, and whether the MPPT chip can achieve maximum power point tracking normally, to ensure that both power generation methods can store energy efficiently. Step 5: Confirm that the reciprocating screw rotates smoothly through the bearing and the side of the lamp, and that the blades are securely installed; start the ventilation system in the traffic tunnel or use the wind generated by the vehicle to observe whether the blades drive the reciprocating screw to rotate, whether the sleeve can make reciprocating linear motion along the reciprocating screw, and whether slider A slides along the transverse guide rail A and slider B slides along the transverse guide rail B without jamming.

[0015] Scraper maintenance: Regularly check whether the rubber layer of the scraper is worn or whether the scraper is deformed. If replacement is required, unscrew the screws connecting the scraper to L-shaped plate A and L-shaped plate B, remove the old scraper and replace it with a new one.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In this invention, the self-powered device serves as the core of the energy supply. Its vibration power generation unit utilizes the continuous vibration generated by vehicle traffic and equipment operation within the traffic tunnel to cause three sets of parallel PZT-5 piezoelectric ceramic sheets and spring oscillators to vibrate and deform, converting mechanical energy into electrical energy. Simultaneously, the thermoelectric power generation unit converts thermal energy into electrical energy through two sets of TEC1-12706 bismuth telluride thermoelectric generators. The electrical energy generated by both power generation units is transmitted to the charge and discharge management unit, where the integrated MPPT chip achieves maximum power point tracking, efficiently regulates the electrical energy, and stores it in an energy storage unit composed of lithium iron phosphate batteries. The energy storage unit then provides stable power to the lamps. Compared to solar power, it is more suitable for underground enclosed / semi-enclosed traffic tunnel environments with extremely poor lighting conditions, thus solving the problems in the background technology where traffic tunnel lamps rely on external power grids, resulting in high construction and maintenance costs and easy power interruptions, as well as the problems of extremely low efficiency of solar power due to poor lighting conditions in tunnels, which cannot meet the continuous power supply requirements. 2. In this invention, the dustproof component utilizes the wind generated by natural forces or vehicle traffic within the traffic tunnel to drive a scraper that moves back and forth synchronously on the lamp's illumination surface. This promptly removes easily adhering dust and particulate matter, disrupting their adhesion and causing most of the dust and particulate matter to detach from the lamp's illumination surface. This achieves the dustproof function, avoiding the manpower, material resources, and safety risks associated with manual cleaning. It also ensures the light transmittance and illumination brightness of the lamp, thus solving the problem in the background technology where poor air circulation inside traffic tunnels leads to the easy adhesion and accumulation of dust and particulate matter on the lamp's illumination surface, resulting in a significant reduction in the light transmittance and illumination brightness of the lamp. Furthermore, it requires regular manual inspection and cleaning, which not only consumes a lot of manpower and material resources but also poses operational safety risks. 3. This invention allows for fine-tuning of the lamp height without disassembling the overall structure through the cooperation of a screw and double nuts, enabling it to quickly adapt to different traffic tunnel heights and different lighting needs. 4. The present invention has excellent vibration reduction effect. The alternating setting of damper and buffer spring can not only efficiently absorb vibration energy through spring, but also suppress secondary vibration when spring rebounds through damper. This reduces the amplitude of vibration transmitted to lamps and self-powered devices, preventing damage to internal components of lamps due to unreasonable vibration, and avoiding the vibration power generation unit from affecting power generation stability due to excessive vibration. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of the local structure of A; Figure 3 For the present invention Figure 1 Enlarged view of the local structure of B; Figure 4 This is a schematic diagram of the specific structure at the bottom of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of the local structure of C; Figure 6 For the present invention Figure 4 Enlarged view of the local structure of D; Figure 7 This is a schematic diagram of the specific structure of the present invention without the dust cover installed; Figure 8 For the present invention Figure 7 Enlarged view of the local structure of E.

[0018] In the picture: 1. Lighting fixtures; 2. Mounting components; 201. Fixing foot; 202. N-shaped plate; 2021. Through hole; 203. Shock-absorbing components; 2031. Top plate; 2032. Base plate; 2033. Damper; 2034. Buffer spring; 2035. Telescopic rod; 204. Screw; 205. Nut; 3. Self-powered devices; 4. Dustproof components; 401. Scraper; 402. Bearing; 403. Reciprocating screw; 404. Sleeve; 405. Transverse guide rail A; 406. Slider A; 407. L-shaped plate A; 408. L-shaped plate B; 409. Blade; 410. Transverse guide rail B; 411. Slider B; 412. Rubber layer; 5. Dust cover. Detailed Implementation

[0019] Example 1 like Figure 1 as well as Figures 3 to 6 As shown, the present invention provides a self-powered dustproof lighting fixture for traffic tunnels, comprising: Light fixture 1, which is mounted on the roof of the traffic tunnel by mounting assembly 2; The self-powered device 3, installed on the top of the lamp 1, includes a vibration power generation unit, a thermoelectric power generation unit, an energy storage unit, and a charge / discharge management unit. The vibration power generation unit is a combination of a piezoelectric ceramic power generation component and a spring oscillator. The thermoelectric power generation unit is a combination of a bismuth telluride thermoelectric generator and a heat sink. The energy storage unit is a lithium iron phosphate battery. The charge / discharge management unit integrates an MPPT chip and a protection circuit. The vibration power generation unit contains three sets of parallel PZT-5 type piezoelectric ceramic sheets (output voltage 3-5V, current 50-100mA). The thermoelectric power generation unit contains two sets of TEC1-12706 type bismuth telluride thermoelectric generators (the two sets of TEC1-12706 type bismuth telluride thermoelectric generators are connected in series).

[0020] It should be noted that the TEC1-12706 is essentially a thermoelectric cooler based on bismuth telluride semiconductor material. In its model number, "127" represents the 127 pairs of bismuth telluride thermocouples integrated internally, "06" indicates a maximum operating current of 6A, a normal operating voltage of approximately 12V, a limiting voltage of 15.4V, a maximum cooling power of approximately 54.1W at the cold end, and a maximum achievable temperature difference of approximately 67℃. Although its initial design purpose is to achieve cooling using the Peltier effect (generating a temperature difference between the two ends after energization), based on the reversibility of the thermoelectric effect, it can also be used as a thermoelectric generator. When there is a temperature difference between the two ends of the device, electrical energy can be generated through the Seebeck effect. At this time, its power generation performance is related to the temperature difference. As the temperature difference increases, the output voltage increases accordingly. The thermoelectric generator unit compensates for the insufficient power generation efficiency of the TEC1-12706 device through the voltage regulation circuit of the charge and discharge management unit, ensuring stable output of electrical energy in the ambient temperature difference of 5-20℃ in traffic tunnels, and a stable output voltage of 5-12V and current of 80-150mA.

[0021] The dustproof component 4 uses wind power to drive its scraper 401 to move back and forth on the illumination surface of the lamp 1 to prevent dust and particulate matter from adhering to the illumination surface of the lamp 1, thus playing a dustproof role. The dustproof component 4 includes a reciprocating screw 403 that is rotatably connected to the side end of the lamp 1 through a bearing 402, and a rod sleeve 404 is threadedly connected to the outer wall of the reciprocating screw 403. The side end of the lamp 1 is also equipped with a transverse guide rail A405 for sliding a slider A406. The surface of the slider A406 is connected to the surface of the rod sleeve 404. The bottom end of the rod sleeve 404 is connected to the scraper 401 through an L-shaped plate A407. A blade 409 is installed at the end of the reciprocating screw 403.

[0022] First, the lamp 1 is securely installed on the top wall of the traffic tunnel using mounting component 2, ensuring the stability of the overall structure. The self-powered device 3 serves as the core energy supply unit. Its vibration power generation unit utilizes the continuous vibrations generated by vehicle traffic and equipment operation within the traffic tunnel. This causes three sets of parallel PZT-5 piezoelectric ceramic sheets to vibrate and deform in conjunction with a spring oscillator, converting mechanical energy into electrical energy. Simultaneously, the thermoelectric power generation unit uses two sets of TEC1-12706 bismuth telluride thermoelectric generators, with their hot ends bonded to the LEDs of the lamp 1 via thermally conductive silicone grease. The heat dissipation surface of the light source has its cold end connected to and attached to the concrete structure of the traffic tunnel sidewall via a heat pipe. A stable temperature difference of 5-20°C between the two ends drives power generation, converting heat energy into electrical energy. The electrical energy generated by both power generation units is transmitted to the charge / discharge management unit, where an integrated MPPT chip enables maximum power point tracking, efficiently regulating the electrical energy and storing it in an energy storage unit composed of lithium iron phosphate batteries. This energy storage unit then provides a stable power supply to the lamp 1, solving the problems of traditional lamp 1's reliance on the external power grid, easy power interruptions, and environmental energy waste. Compared to solar power, it is more suitable for the underground enclosed / semi-enclosed environment of traffic tunnels with extremely poor lighting conditions. Meanwhile, the dustproof component 4 utilizes the wind generated by natural forces or vehicle traffic within the traffic tunnel to drive the reciprocating screw. The blade 409 at the end of 403 rotates, causing the reciprocating screw 403 to rotate around the side of the lamp 1 via the bearing 402. This, in turn, drives the sleeve 404, which is threaded to the outer wall, to reciprocate linearly along the reciprocating screw 403. The sleeve 404 drives the connected slider A406 to slide stably along the transverse guide rail A405 on the side of the lamp 1 (maintaining the back-and-forth linear movement of the sleeve 404). At the same time, the bottom end of the sleeve 404 drives the scraper 401 to move back and forth synchronously on the illumination surface of the lamp 1 via the L-shaped plate A407. This scrapes away easily adhering dust and particles in a timely manner, breaking their adhesion and causing most of the dust and particles to fall off the illumination surface of the lamp 1. This serves as a dustproof function, avoiding the manpower and material consumption and safety risks of manual cleaning, and ensuring the light transmittance and illumination brightness of the lamp 1.

[0023] It should be noted that both the L-shaped plate A407 and the scraper 401 adopt a thin design, and their thickness is strictly controlled within a minimum reasonable range. This design consideration aims to minimize the impact of shading on the illumination of the lamp 1: As the intermediate structure connecting the sleeve 404 and the scraper 401, the thin design of the L-shaped plate A407 can reduce the shadow area formed in the illumination path of the lamp 1, and avoid obvious dark areas in the illumination area due to its own structural thickness; while the scraper 401, as a component that directly acts on the illumination surface of the lamp 1, is thinned to minimize the degree of light shading during the back-and-forth cleaning process, ultimately reducing the impact of the dustproof component 4 structure on the light intensity, illumination range and light uniformity of the lamp 1. At the same time, the thin design of the scraper 401 can also prevent dust from adhering to it.

[0024] Furthermore, firstly, both the front and rear ends of the lamp 1 are equipped with transverse guide rails B410 for sliding slider B411, and the bottom ends of slider B411 are connected to the two ends of scraper 401 through L-shaped plate B408. The two-end support structure formed by the transverse guide rails B410 and slider B411 can form a "three-point positioning" with the side guide rail A and slider A406, strictly limiting the movement trajectory of scraper 401 in a plane parallel to the illumination surface of lamp 1, preventing scraper 401 from shifting, and ensuring that it always moves in contact with the illumination surface. Secondly, a rubber layer 412 is bonded to the contact surface between the scraper 401 and the lamp 1. The rubber material has good elasticity and deformation ability, which can closely fit the slight curvature or flatness deviation of the lamp 1's irradiation surface, fill the small gap between the scraper 401 and the irradiation surface, and prevent dust from remaining in the gap due to the rigid scraper 401 not being tightly attached to the irradiation surface. This significantly improves the thoroughness of scraping dust and particulate matter. Especially for fine dust that has accumulated in traffic tunnels for a long time, the elastic compression of the rubber layer 412 can achieve more efficient cleaning. At the same time, the rubber layer 412 can play a buffering and protective role, preventing the scraper 401 substrate (such as metal or hard plastic) from directly contacting and rubbing against the lamp 1's irradiation surface (mostly glass or acrylic material), preventing scratches and wear on the lamp 1's irradiation surface caused by long-term reciprocating movement, and extending the service life of the light-transmitting components of the lamp 1. Finally, the present invention also designs the scraper 401 to be detachably connected to the L-shaped plate A407 and L-shaped plate B408 by screws. In this way, when the scraper 401 wears down the rubber layer 412 due to long-term friction, the cleaning effect decreases, or the scraper 401 itself is deformed or damaged, it is not necessary to disassemble the entire dustproof assembly 4. The scraper 401 can be replaced separately by simply unscrewing the connecting screws, which greatly reduces maintenance time and operation difficulty.

[0025] Example 2 like Figure 1 , Figure 2 , Figure 4 , Figure 7 as well as Figure 8As shown in the figure, this embodiment provides the specific structure of the mounting component 2 in embodiment 1: the mounting component 2 includes two fixing feet 201 fixed to the top wall of the traffic tunnel and an N-shaped plate 202. The bottom ends of the fixing feet 201 are connected to the two ends of the N-shaped plate 202 respectively through shock-absorbing components 203. The top four corners of the lamp 1 are fixedly connected with screws 204. The bottom four corners of the N-shaped plate 202 are provided with through holes 2021 for the screws 204 to pass through. The outer wall of the screws 204 is threaded with two Nuts 205, two nuts 205 respectively abut against the bottom and top sides of the N-shaped plate 202 to fix the installation height of the lamp 1. The shock-absorbing component 203 includes a top plate 2031 welded to the bottom of the fixed foot 201 and a bottom plate 2032 welded to the end of the N-shaped plate 202. The two are maintained in relative linear movement by telescopic rods 2035 located at the four corners. Multiple dampers 2033 and buffer springs 2034 are alternately arranged between the top plate 2031 and the bottom plate 2032.

[0026] The working process of the aforementioned installation component 2 is divided into three core stages: fixed installation, height adjustment, and shock absorption. First, the entire installation structure is securely connected to the top wall of the traffic tunnel using two fixing feet 201. Next, the screws 204 at the four corners of the top of the lamp 1 are passed through the through holes 2021 at the four corners of the bottom of the N-shaped plate 202. The length of the screws 204 passing through the through holes 2021 is controlled according to the required height of the lamp 1. Subsequently, the two nuts 205 on the outer side of the screws 204 are rotated—the lower nut 205 is rotated upwards to fit the bottom surface of the N-shaped plate 202, and the upper nut 205 is rotated downwards to fit the top surface of the bottom of the N-shaped plate 202. This clamps the two nuts 205 from the upper and lower surfaces of the N-shaped plate 202, thereby precisely locking the installation height of the lamp 1 to meet different needs. The traffic tunnel has requirements for the illumination height of the lamp 1; finally, when vibrations occur in the traffic tunnel due to vehicle traffic and equipment operation, the vibrations will be transmitted from the top wall to the fixed foot 201, and then to the top plate 2031 of the damping component 203. At this time, the dampers 2033 and buffer springs 2034 alternately arranged between the top plate 2031 and the bottom plate 2032 work together: the buffer spring 2034 absorbs part of the vibration energy through its own deformation, and the damper 2033 suppresses the reciprocating vibration of the spring to avoid resonance. At the same time, the telescopic rods 2035 at the four corners can limit the relative movement direction of the top plate 2031 and the bottom plate 2032, ensuring that the two only move in the vertical direction to dampen vibrations, preventing lateral displacement that could cause structural loosening, and finally greatly weakening the vibrations transmitted to the N-shaped plate 202 and the lamp 1.

[0027] The design of the mounting component 2 is fully adapted to the usage scenarios of traffic tunnels, with significant advantages: First, through the cooperation of screw 204 and double nuts 205, the height of the lamp 1 can be finely adjusted without disassembling the overall structure, which can quickly adapt to different traffic tunnel heights and different lighting needs. Second, it has excellent shock absorption effect. The alternating setting of damper 2033 and buffer spring 2034 can not only efficiently absorb vibration energy through the spring, but also suppress secondary vibration when the spring rebounds through damper 2033, thereby reducing the amplitude of vibration transmitted to lamp 1 and self-powered device 3. This not only prevents damage to internal components of lamp 1 due to unreasonable vibration, but also avoids the vibration power generation unit from affecting power generation stability due to excessive vibration.

[0028] It should be noted that the vibration damping design of the mounting component 2 will not negatively affect the normal use of the vibration power generation unit; on the contrary, it can optimize its operational stability. From the perspective of vibration transmission path, vibrations within the traffic tunnel (such as vibrations generated by vehicle traffic or equipment operation) will first be transmitted to the fixed feet 201 of the mounting component 2, then through the damping component 203 to the N-shaped plate 202 and the lamp 1, ultimately acting on the vibration power generation unit at the top of the lamp 1. In the damping component 203, the synergistic effect of the buffer spring 2034 and the damper 2033 primarily weakens high-frequency, severe, and potentially damaging impact vibrations (such as the instantaneous strong vibrations generated by sudden braking of a vehicle), rather than completely blocking all vibrations—the "continuous, stable, and weak vibrations" required by the vibration power generation unit can still be effectively transmitted to the internal piezoelectric ceramic power generation component and spring oscillator, ensuring that they normally generate vibration deformation and convert it into electrical energy, avoiding the breakage of the piezoelectric ceramic sheet or fatigue damage to the spring oscillator due to excessive vibration.

[0029] Furthermore, a dust cover 5 is installed on the outer periphery of the top plate 2031 to shield the area between the top plate 2031 and the bottom plate 2032. The dust cover 5 forms a physical barrier to effectively prevent dust from entering the core damping area between the top plate 2031 and the bottom plate 2032, ensuring that the damper 2033 can smoothly perform damping and buffering, the buffer spring 2034 can flexibly extend and retract to absorb vibration, and the telescopic rod 2035 can stably maintain the guiding function, thereby ensuring that the damping component 203 is in a high-efficiency working state for a long time and avoiding damping failure due to dust pollution.

[0030] This invention also provides a method for using the above-mentioned self-powered dustproof luminaire for traffic tunnels: Step 1: Securely connect the two fixing feet 201 to the top wall of the traffic tunnel to keep the entire installation assembly horizontal; then, pass the screws 204 at the four corners of the top of the lamp 1 through the through holes 2021 at the four corners of the bottom of the N-shaped plate 202 respectively. Adjust the length of the screws 204 through the through holes 2021 according to the lighting height requirements of the traffic tunnel. Step 2: Rotate the two nuts 205 on the outer side wall of the screw 204: screw the lower nut 205 upwards to fit tightly against the bottom surface of the N-shaped plate 202, and screw the upper nut 205 downwards to fit tightly against the top surface of the bottom of the N-shaped plate 202. The installation height of the lamp 1 is locked by clamping the double nuts, ensuring that the lamp 1 is stable and does not wobble. Step 3: Confirm that the vibration power generation unit (three sets of parallel PZT-5 piezoelectric ceramic sheets and spring oscillators) at the top of lamp 1 is firmly installed, the hot and cold ends of the thermoelectric power generation unit (two sets of TEC1-12706 bismuth telluride thermoelectric sheets and heat sinks) are properly bonded, and the wiring of the energy storage unit (lithium iron phosphate battery) and the charge and discharge management unit (integrated MPPT chip and protection circuit) is normal. Step 4: Simulate the vibration generated by vehicle traffic and equipment operation in the traffic tunnel, observe whether the piezoelectric ceramic sheet of the vibration power generation unit deforms with the vibration, whether the electrical energy is transmitted to the energy storage unit through the charging and discharging management unit, and at the same time monitor the heating status of lamp 1 when it is working to confirm whether the thermoelectric generator can generate electrical energy through the internal and external temperature difference, and whether the MPPT chip can achieve maximum power point tracking normally, to ensure that both power generation methods can store energy efficiently. Step 5: Confirm that the reciprocating screw 403 rotates smoothly with the side end of the lamp 1 via the bearing 402, and that the blade 409 is securely installed; start the ventilation system in the traffic tunnel or use the wind generated by the vehicle's movement to observe whether the blade 409 drives the reciprocating screw 403 to rotate, whether the sleeve 404 can make reciprocating linear motion along the reciprocating screw, and whether the slider A406 slides along the transverse guide rail A405 and the slider B411 slides along the transverse guide rail B410 without jamming.

[0031] Scraper 401 maintenance: Regularly check whether the rubber layer 412 of scraper 401 is worn or whether the scraper is deformed. If replacement is required, unscrew the screws connecting scraper 401 to L-shaped plate A407 and L-shaped plate B408, remove the old scraper and replace it with a new scraper.

[0032] The present invention relates to a self-powered dustproof lighting fixture for traffic tunnels and its method of use, which has the following advantages: The self-powered device 3 serves as the core of the energy supply. Its vibration power generation unit utilizes the continuous vibration generated by vehicles passing through and equipment operating in the traffic tunnel to cause three sets of parallel PZT-5 piezoelectric ceramic sheets to vibrate and deform in conjunction with the spring oscillator, converting mechanical energy into electrical energy. At the same time, the thermoelectric power generation unit converts thermal energy into electrical energy through two sets of TEC1-12706 bismuth telluride thermoelectric generators. The electrical energy generated by these two power generation units is transmitted to the charge and discharge management unit, where the integrated MPPT chip achieves maximum power point tracking, efficiently regulates the electrical energy, and stores it in the energy storage unit composed of lithium iron phosphate batteries. The energy storage unit then provides stable power to the lamp 1. Compared with solar power, it is more suitable for the underground enclosed / semi-enclosed traffic tunnel environment with extremely poor lighting conditions. The dustproof component 4 uses the wind generated by natural or vehicle traffic in the traffic tunnel to drive the scraper 401 to move back and forth synchronously on the illumination surface of the lamp 1, so as to scrape off the easily attached dust and particles in time, destroy their adhesion, and make most of the dust and particles fall off the illumination surface of the lamp 1, thus playing a dustproof role, avoiding the manpower and material consumption and safety risks of manual cleaning, and ensuring the light transmittance and lighting brightness of the lamp 1. With the cooperation of screw 204 and double nuts 205, the height of lamp 1 can be finely adjusted without disassembling the overall structure, which can quickly adapt to different traffic tunnel heights and different lighting needs. The damping effect is excellent. The alternating arrangement of the damper 2033 and the buffer spring 2034 can not only efficiently absorb vibration energy through the spring, but also suppress the secondary vibration when the spring rebounds through the damper 2033. This reduces the amplitude of vibration transmitted to the lamp 1 and the self-powered device 3, preventing damage to the internal components of the lamp 1 due to unreasonable vibration, and avoiding the vibration power generation unit from affecting the power generation stability due to excessive vibration.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A self-powered dust-proof luminaire for traffic tunnels, characterized by: The utility model relates to a kind of self-powered devices (3) and dust prevention assembly (4) for traffic tunnel lamp (1) and its installation method, including: Lamp (1) is installed on the top wall of traffic tunnel by mounting assembly (2); Self-powered device (3) is installed at the top end of lamp (1), including vibration power generation unit, thermoelectric power generation unit, energy storage unit, charge and discharge management unit, the vibration power generation unit is the combination structure of piezoelectric ceramic power generation assembly and spring vibrator, the thermoelectric power generation unit is the combination structure of bismuth telluride thermoelectric power generation sheet and heat sink, the energy storage unit is lithium iron phosphate battery, the charge and discharge management unit integrates MPPT chip and protection circuit; Dust prevention assembly (4) is driven by wind to move back and forth on the irradiation surface of lamp (1) by scraper (401) on it, to avoid dust and particulate matter to adhere on the irradiation surface of lamp (1), to play the role of dust prevention.

2. The self-powered dustproof light for traffic tunnel according to claim 1, characterized in that: The vibration power generation unit includes three groups of PZT-5 piezoelectric ceramic sheets in parallel, and the thermoelectric power generation unit includes two groups of TEC1-12706 bismuth telluride thermoelectric power generation sheets.

3. The self-powered dust-proof lamp for traffic tunnel according to claim 1, characterized in that: The mounting assembly (2) includes two fixed feet (201) fixed on the top wall of the traffic tunnel and an N-shaped plate (202), the bottom ends of the fixed feet (201) are respectively connected to the two end portions of the N-shaped plate (202) through damping components (203), the top end of the lamp (1) is fixedly connected with four threaded rods (204), the bottom four corners of the N-shaped plate (202) are provided with through holes (2021) for the threaded rods (204) to pass through, and the outer side walls of the threaded rods (204) are threadedly connected with two nuts (205), which are respectively arranged on the upper and lower surfaces of the bottom of the N-shaped plate (202) to abut against the N-shaped plate (202), so as to fix the installation height of the lamp (1).

4. The self-powered dustproof light for traffic tunnel according to claim 3, characterized in that: The damping component (203) includes a top plate (2031) welded to the bottom end of the fixed foot (201) and a bottom plate (2032) welded to the end portion of the N-shaped plate (202), and the relative linear movement between the two is maintained by four telescopic rods (2035) located at the four corners, and a plurality of dampers (2033) and buffer springs (2034) are alternately arranged between the top plate (2031) and the bottom plate (2032).

5. The self-powered dust-proof light fixture for traffic tunnel according to claim 4, characterized in that: A dust cover (5) is mounted on the outer circumferential surface of the top plate (2031) to shield the area between the top plate (2031) and the bottom plate (2032).

6. The self-powered dust-proof light fixture for traffic tunnel according to claim 1, characterized in that: The dust prevention assembly (4) includes a reciprocating screw rod (403) rotatably connected to the side end of the lamp (1) through a bearing (402), and a rod sleeve (404) is threadedly connected to the outer side wall of the reciprocating screw rod (403), the side end of the lamp (1) is also provided with a horizontal guide rail A (405) for sliding of a sliding block A (406), the surface of the sliding block A (406) is connected to the surface of the rod sleeve (404), the bottom end of the rod sleeve (404) is connected to the scraper (401) through an L-shaped plate A (407), and the end portion of the reciprocating screw rod (403) is provided with a blade (409).

7. The self-powered dust-proof light fixture for traffic tunnel according to claim 6, characterized in that: The front and rear ends of the lamp (1) are provided with horizontal guide rails B (410) for sliding the sliding blocks B (411), and the bottom ends of the sliding blocks B (411) are connected to the two end portions of the scraper (401) through the L-shaped plates B (408), and the contact surface of the scraper (401) and the lamp (1) is bonded with a rubber layer (412).

8. The self-powered dust-proof light fixture for traffic tunnel according to claim 7, characterized in that: The scraper (401) is detachably connected with the L-shaped plate A (407) and the L-shaped plate B (408) through screws.

9. Use of the self-powered dust-proof luminaire for traffic tunnels according to any one of claims 1-8, characterized in that: The method comprises the following steps: Step one: stably connect two fixed feet (201) to the top wall of the traffic tunnel, so that the whole installation assembly (2) remains horizontal; then pass the four screws (204) at the top corners of the lamp (1) through the through holes (2021) at the four corners of the bottom of the N-shaped plate (202) respectively, and adjust the length of the screws (204) protruding out of the through holes (2021) according to the lighting height requirement of the traffic tunnel; Step two: rotate the two nuts (205) on the outer side wall of the screw (204): rotate the lower nut (205) upwards to tightly fit the bottom surface of the bottom of the N-shaped plate (202), and rotate the upper nut (205) downwards to tightly fit the top surface of the bottom of the N-shaped plate (202), so as to realize the locking of the installation height of the lamp (1) through the clamping of the double nuts (205), and ensure that the whole lamp (1) is stable and does not shake; Step three: confirm that the vibration power generation unit at the top end of the lamp (1) is firmly installed, the hot end and the cold end of the thermoelectric power generation unit are tightly fitted, and the connection between the energy storage unit and the charge and discharge management unit is normal; Step four: simulate the vibration generated by the vehicle passing through and the equipment running in the traffic tunnel, observe whether the piezoelectric ceramic sheet of the vibration power generation unit deforms with vibration, whether the electric energy is transmitted to the energy storage unit through the charge and discharge management unit, and monitor the heating state of the lamp (1) when it works, confirm whether the thermoelectric power generation sheet can generate electric energy through the internal and external temperature difference, whether the MPPT chip normally realizes maximum power point tracking, and ensure that the two power generation methods can efficiently store energy; Step five: confirm that the reciprocating screw rod (403) rotates smoothly through the bearing (402) and the side end of the lamp (1), and the blade (409) is firmly installed; start the ventilation system in the traffic tunnel or use the wind power generated by the vehicle driving, observe whether the blade (409) drives the reciprocating screw rod (403) to rotate, whether the rod sleeve (404) can make reciprocating linear motion along the reciprocating screw rod (403), and whether the sliding blocks A (406) and B (411) slide along the horizontal guide rails A (405) and B (410) without jamming.

10. The use method of the self-powered dust-proof lamp for traffic tunnels according to claim 9, further comprising: Maintenance operation of the scraper (401): regularly check whether the rubber layer (412) of the scraper (401) is worn out and whether the scraper (401) is deformed, if necessary, unscrew the screws connecting the scraper (401) with the L-shaped plate A (407) and the L-shaped plate B (408), and replace the old scraper (401) with a new one.

Images