Novel explosion-proof lighting device of diesel locomotive

Abstract

The utility model discloses a novel explosion-proof lighting device of an internal combustion locomotive, which comprises a die-casting aluminum panel and a die-casting aluminum radiating lampshade arranged in the rear end of the die-casting aluminum panel, and the die-casting aluminum panel is fixedly connected with the die-casting aluminum radiating lampshade through a plurality of screws. A plurality of heat dissipation fins are connected to the outer walls of the rear end, the upper end and the lower end of the die-casting aluminum heat dissipation lampshade, and the heat dissipation fins are arranged at equal intervals from left to right. Air flow enters the U-shaped air supply heat absorption pipe through the air collecting cover and the air inlet end pipe and then is exhausted through the air outlet tail pipe, the U-shaped pipe absorbs heat of a battery bin through a long-strip-shaped pipe fixing block and the like, heat of LED lamp beads is absorbed by attaching the die-casting aluminum heat dissipation lampshade, the heat dissipation blowing pipe of the air inlet end pipe faces the lampshade, and part of the air flow is blown out to take away heat on the surface of the lampshade. And the plurality of U-shaped pipes which are arranged at equal intervals work cooperatively, so that heat dissipation is more uniform.

Description

Technical Field

[0001] This utility model belongs to the technical field of internal combustion locomotive lighting, specifically relating to a new type of explosion-proof lighting device for internal combustion locomotives. Background Technology

[0002] With the booming development of the transportation industry, diesel locomotives play a vital role in freight and passenger transport. As a key piece of equipment ensuring the safe operation of diesel locomotives at night and in adverse weather conditions, the performance of explosion-proof lighting devices is directly related to driving safety. In the early days, diesel locomotive lighting systems mostly used old-fashioned lamps, such as tungsten filament bulbs. These lamps had many drawbacks: extremely low luminous efficiency, with only about 10% of electrical energy converted into light energy and the remaining 90% converted into heat energy, resulting in not only a large amount of energy waste but also increased ambient temperature; high energy consumption, consuming far more electricity than modern energy-saving lamps to provide the same brightness; short service life, typically between 1,000 and 2,500 hours, with frequent replacements increasing operating costs and maintenance workload; and high heat generation during operation. The bulbs have several drawbacks: high surface temperature, posing a risk of burns and other safety hazards; generally poor light quality, emitting harsh light that can cause glare and shadows, and potentially emitting ultraviolet and infrared radiation that could harm the human body; environmentally, the production and use processes may pollute the environment, and the disposal of materials such as the glass casing after disposal is also problematic; while the initial purchase price is low, the overall operating cost is not low when considering factors such as lifespan, energy consumption, and replacement costs; high maintenance costs, as the bulbs are fragile and require care to avoid contaminating the bulb surface with hand oils during replacement, increasing maintenance workload and time costs; and high safety risks, as the high temperature during operation, improper installation, or external impacts could lead to bulb breakage, fires, and other dangerous situations.

[0003] With technological advancements, LED light sources have been gradually applied to explosion-proof lighting devices in diesel locomotives, resulting in significant performance improvements. The improved explosion-proof lighting devices for diesel locomotives employ heat dissipation designs such as heat sink fins, die-cast aluminum materials, and die-cast aluminum radiators, which have improved heat dissipation to some extent. However, the working environment of diesel locomotives is unique, being flammable and explosive, placing extremely high safety requirements on lighting devices. Existing heat dissipation measures still have limitations in this environment. Good heat dissipation is crucial for further enhancing the safety of explosion-proof lighting devices in flammable and explosive environments. If heat dissipation is not timely or sufficient, the internal temperature of the lighting device may become too high, potentially leading to performance degradation of circuit components or even malfunctions, increasing the risk of explosions. Therefore, a more efficient heat dissipation technology is urgently needed to meet the safety requirements of explosion-proof lighting devices in complex and dangerous environments for diesel locomotives, ensuring safe and stable operation during transportation. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of explosion-proof lighting device for internal combustion locomotives, in order to solve the problem mentioned in the background art that early internal combustion locomotive lighting mostly used tungsten filament bulbs with many problems. Later, the new explosion-proof lighting device with LED light source was improved to a certain extent by adopting heat dissipation design such as heat sink fins. However, in the special environment of internal combustion locomotives that are flammable and explosive, the existing heat dissipation measures have limited effect, and more efficient heat dissipation technology is needed to improve the safety of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel explosion-proof lighting device for internal combustion locomotives, comprising a die-cast aluminum panel and a die-cast aluminum heat dissipation lamp cover disposed inside the rear end of the die-cast aluminum panel. The die-cast aluminum panel and the die-cast aluminum heat dissipation lamp cover are fixedly connected by multiple screws. Multiple heat dissipation fins are connected to the rear end and the upper and lower outer walls of the die-cast aluminum heat dissipation lamp cover. The multiple heat dissipation fins are arranged equidistantly from left to right. A battery compartment is connected to the rear end of the die-cast aluminum heat dissipation lamp cover. A die-cast aluminum power cover is disposed at the rear end of the battery compartment. The die-cast aluminum power cover is fixedly connected to the battery compartment by multiple screws. Air intake heat dissipation devices are fixed at both the upper and lower ends of the battery compartment.

[0006] Preferably, the air intake heat dissipation device at the top of the battery compartment includes a thermally conductive fixing base plate, a long strip tube fixing block, a U-shaped air supply and heat absorption tube, a heat dissipation groove, and fixing tube holes. The thermally conductive fixing base plate is fixed to the outer wall of the top of the battery compartment. The long strip tube fixing block is fixed to the top of the thermally conductive fixing base plate. Multiple fixing tube holes are equidistantly arranged inside the long strip tube fixing block. The multiple fixing tube holes are equidistantly arranged from left to right. A U-shaped air supply and heat absorption tube is inserted and fixed into each of the multiple fixing tube holes, and the U-shaped opening of the U-shaped air supply and heat absorption tube faces upward. Multiple downwardly recessed heat dissipation grooves are equidistantly arranged on the outer wall of the top of the long strip tube fixing block.

[0007] Preferably, the air intake heat dissipation device further includes an exhaust tailpipe, an intake end pipe, and an air collection shroud. The exhaust tailpipe is connected to the rear end of the top of the U-shaped air supply and heat absorption pipe, and the intake end pipe is connected to the front end of the top of the U-shaped air supply and heat absorption pipe. The U-shaped air supply and heat absorption pipe is internally interconnected with the intake end pipe and the exhaust tailpipe, and the air collection shroud is connected to the front end of the intake end pipe.

[0008] Preferably, the exhaust tailpipe and the intake end pipe are both horizontally arranged, the intake end pipe is located above the top of the die-cast aluminum panel, the opening direction of the gas collection hood is forward, and the gas collection hood is connected to the inside of the intake end pipe. The heat-conducting fixing base plate and the long strip tube fixing block are both made of copper-aluminum alloy.

[0009] Preferably, the air intake cooling device further includes a cooling blower pipe, and the cooling blower pipe is connected to the center of the bottom end of the air intake pipe. The cooling blower pipe is connected to the inside of the air intake pipe, and the bottom opening of the cooling blower pipe faces the top outer wall of the die-cast aluminum heat dissipation lamp cover. The diameter of the cooling blower pipe is smaller than the diameter of the air intake pipe.

[0010] Preferably, the die-cast aluminum panel has a rectangular lamp opening inside, the die-cast aluminum heat sink lamp cover has a nano reflector inside, the front end area of ​​the nano reflector is larger than the rear end area, and the front end area of ​​the nano reflector is larger than the rectangular lamp opening area, and an LED light board is fixed inside the rear end of the nano reflector.

[0011] Preferably, the LED light panel has multiple LED beads evenly spaced at the front end, and a transparent tempered glass is sealed and fixed in the rectangular lamp opening inside the die-cast aluminum panel. A silicone sealing gasket is also provided between the transparent tempered glass and the nano reflector for waterproofing and encryption.

[0012] Preferably, the battery compartment is equipped with an isolated driving power supply, which is electrically connected to the LED light panel via wires.

[0013] Preferably, a bracket fixing block is fixed at the center of both the left and right ends of the die-cast aluminum heat dissipation lamp cover, and a metal bracket is connected to the outside of the two bracket fixing blocks. The metal bracket has an overall U-shaped structure, and the two ends of the U-shaped opening of the metal bracket are rotatably connected to the bracket fixing block through a connecting shaft.

[0014] Compared with the prior art, this utility model provides a novel explosion-proof lighting device for internal combustion locomotives, which has the following beneficial effects:

[0015] This invention adds novel air-intake heat dissipation devices to the outer walls of both the upper and lower ends of the battery compartment of a novel explosion-proof lighting device for a diesel locomotive. After the explosion-proof lighting device is installed on the locomotive's cab using metal brackets and screws, as the locomotive travels on the track, airflow continuously flows through the air collection hood of the air-intake heat dissipation device into the air intake pipe. The air intake pipe then guides the airflow to a U-shaped air-supplying heat-absorbing pipe and discharges it through the exhaust pipe. The continuous airflow inside the U-shaped air-supplying heat-absorbing pipe absorbs the heat generated inside the battery compartment through a long strip-shaped pipe fixing block and a thermally conductive fixing base plate. The front end of the U-shaped air-supplying heat-absorbing pipe is attached to the outer wall of the rear end of the die-cast aluminum heat sink lamp cover, so it also absorbs the heat generated by the LED beads inside the die-cast aluminum heat sink lamp cover. Furthermore, the heat dissipation blower at the bottom of the air inlet pipe is directly facing the outer wall of the die-cast aluminum heat sink lamp cover. Therefore, when the airflow passes through the inside of the air inlet pipe, a portion of the airflow will be separated and discharged through the heat dissipation blower. This portion of the airflow directly acts on the die-cast aluminum heat sink lamp cover, which can quickly remove the heat from its surface, further enhancing the heat dissipation effect of the die-cast aluminum heat sink lamp cover. Multiple U-shaped air-supplying heat-absorbing pipes work together and are arranged at equal intervals, making the heat dissipation of the battery compartment and the die-cast aluminum heat sink lamp cover more uniform. Attached Figure Description

[0016] Figure 1 This is a rear-view three-dimensional structural diagram of a novel explosion-proof lighting device for internal combustion locomotives according to this utility model.

[0017] Figure 2 This is a right-side plan view of a novel explosion-proof lighting device for internal combustion locomotives according to this utility model.

[0018] Figure 3 This is a front-view three-dimensional structural diagram of a novel explosion-proof lighting device for internal combustion locomotives according to this utility model.

[0019] Figure 4 This is a right-side plan view of the air intake cooling device of this utility model.

[0020] Figure 5 This is a rear-view three-dimensional structural diagram of the air intake cooling device of this utility model.

[0021] In the diagram: 1. Die-cast aluminum panel; 2. Die-cast aluminum heat dissipation lamp cover; 3. Air intake heat dissipation device; 4. Heat dissipation fins; 5. Bracket fixing block; 6. Battery compartment; 7. Die-cast aluminum power supply cover; 8. Metal bracket; 9. Transparent tempered glass; 10. Nano reflector; 11. LED light board; 12. LED beads; 13. Thermally conductive fixing base plate; 14. Air outlet tailpipe; 15. Long strip tube fixing block; 16. U-shaped air supply and heat absorption tube; 17. Heat dissipation blower tube; 18. Air inlet end tube; 19. Air collection cover; 20. Heat dissipation groove; 21. Fixing pipe hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides, for example Figure 1-5 The novel explosion-proof lighting device for internal combustion locomotives, as shown, includes a die-cast aluminum panel 1 and a die-cast aluminum heat dissipation lamp cover 2 disposed inside the rear end of the die-cast aluminum panel 1. The die-cast aluminum panel 1 and the die-cast aluminum heat dissipation lamp cover 2 are fixedly connected by multiple screws. Multiple heat dissipation fins 4 are connected to the rear end and the outer walls of the upper and lower ends of the die-cast aluminum heat dissipation lamp cover 2. The heat dissipation fins 4 greatly increase the heat dissipation area, accelerate the heat exchange speed, effectively reduce the lamp cover temperature, and ensure the stable operation of the lighting device. The multiple heat dissipation fins 4 are arranged equidistantly from left to right. A battery compartment 6 is connected to the rear end of the die-cast aluminum heat dissipation lamp cover 2. A die-cast aluminum power cover 7 is disposed at the rear end of the battery compartment 6. The die-cast aluminum power cover 7 is fixedly connected to the battery compartment 6 by multiple screws. The screw fixing ensures the structural stability, and the die-cast aluminum material also helps the heat dissipation of the battery compartment 6. The isolated driving power supply inside the battery compartment 6 is electrically connected to the LED light board 11 through wires to provide stable power for lighting. A bracket fixing block 5 is fixed at the center of both the left and right ends of the die-cast aluminum heat dissipation lamp cover 2. The external connection of block 5 is a metal bracket 8. The metal bracket 8 has an overall U-shaped structure, and the two ends of the U-shaped opening of the metal bracket 8 are rotatably connected to the bracket fixing block 5 through a connecting shaft. The shaft allows the metal bracket 8 to rotate, which can easily adjust the angle of the lighting device to meet different lighting needs. This new explosion-proof lighting device for internal combustion locomotives comprehensively utilizes a variety of designs and materials to achieve functions such as high-efficiency explosion protection and heat dissipation. In terms of structural design, the die-cast aluminum panel 1 and the die-cast aluminum heat dissipation lamp cover 2 are fixedly connected by screws to form the basic framework of the lighting device. Due to its good thermal conductivity, die-cast aluminum provides a basis for heat dissipation. Multiple heat dissipation fins 4 are arranged at equal intervals on the rear end and the upper and lower ends of the die-cast aluminum heat dissipation lamp cover 2, which greatly increases the heat dissipation area. According to the principle of heat conduction, heat diffuses from the high-temperature area (such as the heat generated by the LED lamp bead 12 to the die-cast aluminum heat dissipation lamp cover 2) to the low-temperature area. The presence of heat dissipation fins 4 increases the contact area with air and accelerates the heat exchange rate, thereby effectively reducing the lamp cover temperature.

[0024] like Figure 1 , Figure 2 and Figure 3As shown, a rectangular lamp opening is provided inside the die-cast aluminum panel 1, and a nano-reflector cup 10 is provided inside the die-cast aluminum heat sink lamp cover 2. The front area of ​​the nano-reflector cup 10 is larger than the rear area, and the front area of ​​the nano-reflector cup 10 is larger than the area of ​​the rectangular lamp opening. This special design can effectively converge and reflect the light emitted by the LED beads 12, improving lighting efficiency and uniformity. An LED lamp board 11 is fixed inside the rear end of the nano-reflector cup 10, and multiple LED beads 12 are equidistantly arranged at the front end of the LED lamp board 11. Compared with the old-fashioned tungsten filament bulbs, LED lamps have higher luminous efficiency, can convert more electrical energy into light energy, greatly reduce energy consumption, have low energy consumption, and are significantly more energy-efficient than tungsten filament bulbs when providing the same brightness. They also have a long service life, reaching tens of thousands of hours, reducing replacement frequency and cost, low heat generation, reducing safety hazards, and good light quality, with no glare or shadows, and no ultraviolet or infrared radiation. It emits linear radiation, is friendly to the eyes and skin, is environmentally friendly, has minimal environmental impact during production and use, and has low overall operating costs. Although the initial price may be slightly higher, its overall cost-effectiveness is high considering factors such as energy consumption and lifespan. It also has low maintenance costs, is not easily damaged, and has a low replacement frequency, reducing maintenance workload and time costs. The rectangular lamp opening inside the die-cast aluminum panel 1 is sealed with transparent tempered glass 9. A silicone sealing gasket is also provided between the transparent tempered glass 9 and the nano reflector cup 10 for waterproofing and encryption, which can prevent moisture and dust from entering and affecting the performance and lifespan of the lighting device. The battery compartment 6 contains an isolated driver power supply, which is electrically connected to the LED lamp board 11 through wires. The battery compartment 6 provides installation space for the isolated driver power supply, which is electrically connected to the LED lamp board 11 through wires, providing stable power to the lighting device and ensuring that the LED lamps emit light normally.

[0025] like Figure 1 , Figure 4 and Figure 5As shown, both the upper and lower ends of the battery compartment 6 are fixed with air intake heat dissipation devices 3. The air intake heat dissipation device 3 at the top of the battery compartment 6 includes a thermally conductive fixing base plate 13, a long strip tube fixing block 15, a U-shaped air supply and heat absorption tube 16, heat dissipation grooves 20, and fixing tube holes 21. The thermally conductive fixing base plate 13 is fixed to the outer wall of the top of the battery compartment 6. The long strip tube fixing block 15 is fixed to the top of the thermally conductive fixing base plate 13. Multiple fixing tube holes 21 are equidistantly arranged inside the long strip tube fixing block 15. The multiple fixing tube holes 21 are arranged equidistantly from left to right. A U-shaped air supply and heat absorption tube 16 is inserted and fixed into each of the multiple fixing tube holes 21, and the U-shaped opening of the U-shaped air supply and heat absorption tube 16 faces upward. Multiple downwardly recessed heat dissipation grooves 20 are equidistantly arranged on the outer wall of the top of the long strip tube fixing block 15. From the structural design point of view, the thermally conductive fixing base plate 13 is tightly fixed to the outer wall of the top of the battery compartment 6, which is the entire air intake heat dissipation device. The mounting base 3 provides a stable foundation and serves as the starting point for heat conduction, transferring heat generated inside the battery compartment 6 to the components above. The elongated tube fixing block 15 at its top not only fixes the U-shaped air supply heat absorption tube 16, but also has multiple equally spaced fixing tube holes 21 inside to ensure the regularity of the arrangement of the U-shaped air supply heat absorption tube 16, which is conducive to the uniform absorption and transfer of heat. The U-shaped opening of the U-shaped air supply heat absorption tube 16 faces upward, which is convenient for collecting airflow when the locomotive is running. When the airflow enters the U-shaped air supply heat absorption tube 16, it forms a flow inside the tube, which can continuously carry away the surrounding heat. The heat dissipation grooves 20 on the outer wall of the top of the elongated tube fixing block 15 increase the heat dissipation area. According to the principle of heat transfer, under the same temperature difference, the larger the heat dissipation area, the faster the heat dissipation speed. These heat dissipation grooves 20 enable the heat to be dissipated into the surrounding air more quickly.

[0026] like Figure 1 , Figure 4 and Figure 5As shown, the intake-type cooling device 3 also includes an exhaust tailpipe 14, an intake end pipe 18, and a gas collection hood 19. The exhaust tailpipe 14 is connected to the rear end of the top of the U-shaped air supply heat absorption pipe 16, and the intake end pipe 18 is connected to the front end of the top of the U-shaped air supply heat absorption pipe 16. The U-shaped air supply heat absorption pipe 16, the intake end pipe 18, and the exhaust tailpipe 14 are internally interconnected. The gas collection hood 19 is connected to the front end of the intake end pipe 18. The arrangement of the exhaust tailpipe 14, the intake end pipe 18, and the gas collection hood 19 improves the airflow path. The opening of the gas collection hood 19 faces forward, which can effectively collect the air in front during locomotive operation. The airflow is introduced into the inlet pipe 18, which is horizontally positioned above the top of the die-cast aluminum panel 1, facilitating the smooth entry of the airflow collected by the gas collection hood 19. The airflow enters the U-shaped air supply and heat absorption pipe 16 through the inlet pipe 18, and then exits through the outlet tailpipe 14 at the top rear end. This design ensures that the airflow forms a stable flow path within the device, continuously carrying away heat. Both the outlet tailpipe 14 and the inlet pipe 18 are horizontally positioned, with the inlet pipe 18 located above the top of the die-cast aluminum panel 1. The opening of the gas collection hood 19 faces forward, and the gas collection hood 19 and the inlet pipe 18 are connected. The internal structure is interconnected. Both the heat-conducting fixing base plate 13 and the long strip tube fixing block 15 are made of copper-aluminum alloy. Copper-aluminum alloy has excellent thermal conductivity, enabling it to quickly conduct heat from the battery compartment 6 to the U-shaped air-supplying heat-absorbing pipe 16, improving heat transfer efficiency and ensuring heat dissipation. The air-intake heat dissipation device 3 also includes a heat dissipation blower 17. The center of the bottom end of the air-intake pipe 18 is connected to the heat dissipation blower 17, which is internally connected to the air-intake pipe 18. The bottom opening of the heat dissipation blower 17 faces the top outer wall of the die-cast aluminum heat dissipation lamp cover 2. The diameter of the heat dissipation blower 17 is smaller than... The design of the air inlet pipe 18 and the heat dissipation blower pipe 17 further enhances the heat dissipation capacity. The heat dissipation blower pipe 17, which is connected to the center of the bottom end of the air inlet pipe 18, is connected to the inside of the air inlet pipe 18 and has a smaller diameter than the air inlet pipe 18. When the airflow passes through the air inlet pipe 18, due to the change in pipe diameter, part of the airflow will be guided to the heat dissipation blower pipe 17. The bottom opening of the heat dissipation blower pipe 17 faces the top outer wall of the die-cast aluminum heat dissipation lamp cover 2, so that this part of the airflow can directly act on the die-cast aluminum heat dissipation lamp cover 2, take away the heat on its surface, and thus enhance the heat dissipation effect of the die-cast aluminum heat dissipation lamp cover 2.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel explosion-proof lighting device for internal combustion locomotives, comprising a die-cast aluminum panel (1) and a die-cast aluminum heat dissipation lamp cover (2) disposed inside the rear end of the die-cast aluminum panel (1), wherein the die-cast aluminum panel (1) and the die-cast aluminum heat dissipation lamp cover (2) are fixedly connected by a plurality of screws, wherein a plurality of heat dissipation fins (4) are connected to the rear end and the upper and lower outer walls of the die-cast aluminum heat dissipation lamp cover (2), wherein the plurality of heat dissipation fins (4) are arranged equidistantly from left to right, wherein a battery compartment (6) is connected to the rear end of the die-cast aluminum heat dissipation lamp cover (2), wherein a die-cast aluminum power cover (7) is disposed at the rear end of the battery compartment (6), and the die-cast aluminum power cover (7) is fixedly connected to the battery compartment (6) by a plurality of screws, characterized in that: The battery compartment (6) is equipped with air intake cooling devices (3) at both the top and bottom ends; The air intake heat dissipation device (3) at the top of the battery compartment (6) includes a thermally conductive fixing plate (13), a long strip tube fixing block (15), a U-shaped air supply heat absorption tube (16), a heat dissipation groove (20), and a fixing tube hole (21). The thermally conductive fixing plate (13) is fixed to the outer wall of the top of the battery compartment (6). The long strip tube fixing block (15) is fixed at the top of the thermally conductive fixing plate (13). Multiple fixing tube holes (21) are equidistantly arranged inside the long strip tube fixing block (15). The multiple fixing tube holes (21) are arranged equidistantly from left to right. A U-shaped air supply heat absorption tube (16) is inserted and fixed in each of the multiple fixing tube holes (21). The U-shaped opening of the U-shaped air supply heat absorption tube (16) faces upward. Multiple downward recessed heat dissipation grooves (20) are equidistantly arranged on the outer wall of the top of the long strip tube fixing block (15).

2. The novel explosion-proof lighting device for internal combustion locomotives according to claim 1, characterized in that: The air intake heat dissipation device (3) also includes an exhaust tailpipe (14), an intake end pipe (18), and a gas collection hood (19). The exhaust tailpipe (14) is connected to the rear end of the top of the U-shaped air supply heat absorption pipe (16), and the intake end pipe (18) is connected to the front end of the top of the U-shaped air supply heat absorption pipe (16). The U-shaped air supply heat absorption pipe (16) is internally connected to the intake end pipe (18) and the exhaust tailpipe (14). The gas collection hood (19) is connected to the front end of the intake end pipe (18).

3. The novel explosion-proof lighting device for internal combustion locomotives according to claim 2, characterized in that: The exhaust tailpipe (14) and the inlet end pipe (18) are both horizontally arranged. The inlet end pipe (18) is located above the top of the die-cast aluminum panel (1). The opening direction of the gas collection hood (19) is forward, and the gas collection hood (19) is connected to the inside of the inlet end pipe (18). The heat-conducting fixing base plate (13) and the long strip tube fixing block (15) are both made of copper-aluminum alloy.

4. A novel explosion-proof lighting device for internal combustion locomotives according to claim 3, characterized in that: The air intake heat dissipation device (3) also includes a heat dissipation blower (17). The heat dissipation blower (17) is connected to the center of the bottom end of the air intake pipe (18). The heat dissipation blower (17) is internally connected to the air intake pipe (18), and the bottom opening of the heat dissipation blower (17) faces the top outer wall of the die-cast aluminum heat dissipation lamp cover (2). The diameter of the heat dissipation blower (17) is smaller than the diameter of the air intake pipe (18).

5. A novel explosion-proof lighting device for internal combustion locomotives according to claim 1, characterized in that: The die-cast aluminum panel (1) has a rectangular lamp opening inside, and the die-cast aluminum heat dissipation lamp cover (2) has a nano reflector (10) inside. The front end area of ​​the nano reflector (10) is larger than the rear end area, and the front end area of ​​the nano reflector (10) is larger than the rectangular lamp opening area. An LED light board (11) is fixed inside the rear end of the nano reflector (10).

6. A novel explosion-proof lighting device for internal combustion locomotives according to claim 5, characterized in that: The LED light panel (11) has multiple LED beads (12) arranged at equal intervals at the front end. A transparent tempered glass (9) is sealed and fixed in the rectangular lamp opening inside the die-cast aluminum panel (1). A silicone sealing gasket is also provided between the transparent tempered glass (9) and the nano reflector (10) for waterproof and encrypted treatment.

7. A novel explosion-proof lighting device for internal combustion locomotives according to claim 6, characterized in that: An isolated driving power supply is provided inside the battery compartment (6), and the isolated driving power supply is electrically connected to the LED light board (11) through wires.

8. A novel explosion-proof lighting device for internal combustion locomotives according to claim 1, characterized in that: The die-cast aluminum heat dissipation lamp cover (2) has a bracket fixing block (5) fixed at the center of both the left and right ends. The two bracket fixing blocks (5) are connected to the outside of a metal bracket (8). The metal bracket (8) has a U-shaped structure, and the two ends of the U-shaped opening of the metal bracket (8) are rotatably connected to the bracket fixing block (5) through a connecting shaft.

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